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- implemented USB bulk device support for ARMCM4_TM4C. 

git-svn-id: https://svn.code.sf.net/p/openblt/code/trunk@75 5dc33758-31d5-4daf-9ae8-b24bf3d40d73
This commit is contained in:
Frank Voorburg 2014-02-28 16:57:25 +00:00
parent 754d8ecb5c
commit e8ed20a6d4
83 changed files with 50903 additions and 1911 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/bin/openblt_dk_tm4c123g.bin
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Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/bin/openblt_dk_tm4c123g.out
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21
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/blt_conf.h
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@ -55,7 +55,7 @@
/** \brief Motorola or Intel style byte ordering. */
#define BOOT_CPU_BYTE_ORDER_MOTOROLA (0)
/** \brief Enable/disable hook function call right before user program start. */
#define BOOT_CPU_USER_PROGRAM_START_HOOK (0)
#define BOOT_CPU_USER_PROGRAM_START_HOOK (1)
/** \brief Compiler specific variable prefix to prevent its initialization during startup. */
#define BOOT_CPU_CONNECT_STATE_PREFIX __no_init
@ -72,7 +72,7 @@
*
*/
/** \brief Enable/disable UART transport layer. */
#define BOOT_COM_UART_ENABLE (1)
#define BOOT_COM_UART_ENABLE (0)
/** \brief Configure the desired communication speed. */
#define BOOT_COM_UART_BAUDRATE (57600)
/** \brief Configure number of bytes in the target->host data packet. */
@ -82,6 +82,19 @@
/** \brief Select the desired UART peripheral as a zero based index. */
#define BOOT_COM_UART_CHANNEL_INDEX (0)
/* The USB communication interface is selected by setting the BOOT_COM_USB_ENABLE
* configurable to 1. The maximum amount of data bytes in a message for data transmission
* and reception is set through BOOT_COM_USB_TX_MAX_DATA and BOOT_COM_USB_RX_MAX_DATA,
* respectively.
*
*/
/** \brief Enable/disable USB transport layer. */
#define BOOT_COM_USB_ENABLE (1)
/** \brief Configure number of bytes in the target->host data packet. */
#define BOOT_COM_USB_TX_MAX_DATA (63)
/** \brief Configure number of bytes in the host->target data packet. */
#define BOOT_COM_USB_RX_MAX_DATA (63)
/****************************************************************************************
* F I L E S Y S T E M I N T E R F A C E C O N F I G U R A T I O N
@ -111,7 +124,7 @@
#define BOOT_FILE_SYS_ENABLE (1)
/** \brief Enable/disable logging messages during firmware updates. */
#define BOOT_FILE_LOGGING_ENABLE (1)
/** \brief Enable/disable a hook function that is called upon detection of an error. */
/** \brief Enable/disable a hook functionthat is called upon detection of an error. */
#define BOOT_FILE_ERROR_HOOK_ENABLE (1)
/** \brief Enable/disable a hook function that is called at the start of the update. */
#define BOOT_FILE_STARTED_HOOK_ENABLE (1)
@ -133,7 +146,7 @@
/** \brief Enable/disable the backdoor override hook functions. */
#define BOOT_BACKDOOR_HOOKS_ENABLE (0)
/****************************************************************************************
* N O N - V O L A T I L E M E M O R Y D R I V E R C O N F I G U R A T I O N
****************************************************************************************/

70
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/hooks.c
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@ -42,6 +42,66 @@
#include "inc/hw_types.h"
#include "driverlib/uartlib.h"
#endif
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
/****************************************************************************************
* U S B C O M M U N I C A T I O N I N T E R F A C E H O O K F U N C T I O N S
****************************************************************************************/
#if (BOOT_COM_USB_ENABLE > 0)
/************************************************************************************//**
** \brief Callback that gets called whenever the USB device should be connected
** to the USB bus.
** \param connect BLT_TRUE to connect and BLT_FALSE to disconnect.
** \return none.
**
****************************************************************************************/
void UsbConnectHook(blt_bool connect)
{
/* the connection to the USB bus is typically controlled by software through a digital
* output. the GPIO pin for this must be configured as such. the DK-TM4C123G does not
* have a digital output for this feature, so nothing to do here.
*/
/* determine if the USB should be connected or disconnected */
if (connect == BLT_TRUE)
{
/* enable connection to the USB bus */
}
else
{
/* disable connection to the USB bus */
}
} /*** end of UsbConnect ***/
/************************************************************************************//**
** \brief Callback that gets called whenever the USB host requests the device
** to enter a low power mode.
** \return none.
**
****************************************************************************************/
void UsbEnterLowPowerModeHook(void)
{
/* support to enter a low power mode can be implemented here */
} /*** end of UsbEnterLowPowerMode ***/
/************************************************************************************//**
** \brief Callback that gets called whenever the USB host requests the device to
** exit low power mode.
** \return none.
**
****************************************************************************************/
void UsbLeaveLowPowerModeHook(void)
{
/* support to leave a low power mode can be implemented here */
} /*** end of UsbLeaveLowPowerMode ***/
#endif /* BOOT_COM_USB_ENABLE > 0 */
/****************************************************************************************
@ -66,8 +126,8 @@ void BackDoorInitHook(void)
****************************************************************************************/
blt_bool BackDoorEntryHook(void)
{
/* default implementation always activates the bootloader after a reset */
return BLT_TRUE;
/* no backdoor entry requested */
return BLT_FALSE;
} /*** end of BackDoorEntryHook ***/
#endif /* BOOT_BACKDOOR_HOOKS_ENABLE > 0 */
@ -88,6 +148,12 @@ blt_bool BackDoorEntryHook(void)
****************************************************************************************/
blt_bool CpuUserProgramStartHook(void)
{
/* bootloader should remain active when SELECT button is pressed */
if (GPIOPinRead(GPIO_PORTM_BASE, GPIO_PIN_4) == 0)
{
/* keep bootloader active */
return BLT_FALSE;
}
/* okay to start the user program */
return BLT_TRUE;
} /*** end of CpuUserProgramStartHook ***/

4
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/ide/settings/tm4c123g.dbgdt
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@ -83,14 +83,14 @@
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2
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/ide/settings/tm4c123g.dni
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@ -38,7 +38,7 @@ ShowSource=1
[LMIFTDIDriver]
LMI_ResetMode=0x00000000
[DebugChecksum]
Checksum=-743962560
Checksum=-1346733608
[Exceptions]
StopOnUncaught=_ 0
StopOnThrow=_ 0

12
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/ide/settings/tm4c123g.wsdt
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@ -12,9 +12,9 @@
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@ -25,24 +25,24 @@
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<NodeDict><ExpandedNode>tm4c123g</ExpandedNode><ExpandedNode>tm4c123g/Boot</ExpandedNode><ExpandedNode>tm4c123g/Libraries</ExpandedNode><ExpandedNode>tm4c123g/Output</ExpandedNode><ExpandedNode>tm4c123g/Source</ExpandedNode></NodeDict></Session>
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</Workspace>

2304
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/ide/tm4c123g.dep
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File diff suppressed because it is too large Load Diff

204
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/ide/tm4c123g.ewp
View File

@ -297,13 +297,17 @@
<name>CCIncludePath2</name>
<state>$PROJ_DIR$\..\..\..\..\Source</state>
<state>$PROJ_DIR$\..\..\..\..\Source\third_party\fatfs\src</state>
<state>$PROJ_DIR$\..\..\..\..\Source\ARMCM3_LM3S</state>
<state>$PROJ_DIR$\..\..\..\..\Source\ARMCM3_LM3S\IAR</state>
<state>$PROJ_DIR$\..\..\..\..\Source\ARMCM4_TM4C</state>
<state>$PROJ_DIR$\..\..\..\..\Source\ARMCM4_TM4C\IAR</state>
<state>$PROJ_DIR$\..</state>
<state>$PROJ_DIR$\..\lib</state>
<state>$PROJ_DIR$\..\lib\inc</state>
<state>$PROJ_DIR$\..\lib\driverlib</state>
<state>$PROJ_DIR$\..\lib\fatfs</state>
<state>$PROJ_DIR$\..\lib\usblib</state>
<state>$PROJ_DIR$\..\lib\usblib\config</state>
<state>$PROJ_DIR$\..\lib\usblib\device</state>
<state>$PROJ_DIR$\..\lib\usblib\host</state>
</option>
<option>
<name>CCStdIncCheck</name>
@ -1084,10 +1088,10 @@
<name>$PROJ_DIR$\..\lib\driverlib\udma.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\driverlib\usb.c</name>
<name>$PROJ_DIR$\..\lib\driverlib\usbdrv.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\driverlib\usb.h</name>
<name>$PROJ_DIR$\..\lib\driverlib\usbdrv.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\driverlib\watchdog.c</name>
@ -1189,6 +1193,192 @@
<name>$PROJ_DIR$\..\lib\inc\tm4c123gh6pge.h</name>
</file>
</group>
<group>
<name>usblib</name>
<group>
<name>config</name>
<file>
<name>$PROJ_DIR$\..\lib\usblib\config\usb_bulk_structs.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\config\usb_bulk_structs.h</name>
</file>
</group>
<group>
<name>device</name>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdaudio.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdaudio.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdbulk.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdbulk.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdcdc.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdcdc.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdcdesc.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdcomp.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdcomp.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdconfig.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbddfu-rt.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbddfu-rt.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdenum.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdevice.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdevicepriv.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhandler.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhid.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhid.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhidkeyb.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhidkeyb.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhidmouse.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdhidmouse.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdmsc.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\device\usbdmsc.h</name>
</file>
</group>
<group>
<name>host</name>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhaudio.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhaudio.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhid.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhid.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhidkeyboard.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhidkeyboard.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhidmouse.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhidmouse.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhub.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhhub.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhmsc.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhmsc.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhost.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhostenum.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhostpriv.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhscsi.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\host\usbhscsi.h</name>
</file>
</group>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usb-ids.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbaudio.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbbuffer.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbcdc.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbdesc.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbdfu.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbdma.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbhid.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbkeyboardmap.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usblib.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usblibpriv.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbmode.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbmsc.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbringbuf.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\lib\usblib\usbtick.c</name>
</file>
</group>
</group>
<file>
<name>$PROJ_DIR$\..\blt_conf.h</name>
@ -1246,6 +1436,12 @@
<file>
<name>$PROJ_DIR$\..\..\..\..\Source\ARMCM4_TM4C\uart.h</name>
</file>
<file>
<name>$PROJ_DIR$\..\..\..\..\Source\ARMCM4_TM4C\usb.c</name>
</file>
<file>
<name>$PROJ_DIR$\..\..\..\..\Source\ARMCM4_TM4C\usb.h</name>
</file>
</group>
<group>
<name>third_party</name>

2
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/driverlib/usb.c → Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/driverlib/usbdrv.c
View File

@ -55,7 +55,7 @@
#include "driverlib/interrupt.h"
#include "driverlib/sysctl.h"
#include "driverlib/udma.h"
#include "driverlib/usb.h"
#include "driverlib/usbdrv.h"
//*****************************************************************************
//

0
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/driverlib/usb.h → Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/driverlib/usbdrv.h
View File

200
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/usblib/config/usb_bulk_structs.c Normal file
View File

@ -0,0 +1,200 @@
//*****************************************************************************
//
// usb_bulk_structs.c - Data structures defining this bulk USB device.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the DK-TM4C123G Firmware Package.
//
//*****************************************************************************
#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_types.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usb-ids.h"
#include "usblib/device/usbdevice.h"
#include "usblib/device/usbdbulk.h"
#include "usb_bulk_structs.h"
//*****************************************************************************
//
// The languages supported by this device.
//
//*****************************************************************************
const uint8_t g_pui8LangDescriptor[] =
{
4,
USB_DTYPE_STRING,
USBShort(USB_LANG_EN_US)
};
//*****************************************************************************
//
// The manufacturer string.
//
//*****************************************************************************
const uint8_t g_pui8ManufacturerString[] =
{
(12 + 1) * 2,
USB_DTYPE_STRING,
'O', 0, 'p', 0, 'e', 0, 'n', 0, 'B', 0, 'L', 0, 'T', 0,
' ', 0, 'U', 0, 's', 0, 'e', 0, 'r', 0
};
//*****************************************************************************
//
// The product string.
//
//*****************************************************************************
const uint8_t g_pui8ProductString[] =
{
(18 + 1) * 2,
USB_DTYPE_STRING,
'W', 0, 'i', 0, 'n', 0, 'U', 0, 'S', 0, 'B', 0, ' ', 0,
'B', 0, 'u', 0, 'l', 0, 'k', 0, ' ', 0,
'D', 0, 'e', 0, 'v', 0, 'i', 0, 'c', 0, 'e', 0
};
//*****************************************************************************
//
// The serial number string.
//
//*****************************************************************************
const uint8_t g_pui8SerialNumberString[] =
{
(8 + 1) * 2,
USB_DTYPE_STRING,
'1', 0, '2', 0, '3', 0, '4', 0, '5', 0, '6', 0, '7', 0, '8', 0
};
//*****************************************************************************
//
// The data interface description string.
//
//*****************************************************************************
const uint8_t g_pui8DataInterfaceString[] =
{
(21 + 1) * 2,
USB_DTYPE_STRING,
'W', 0, 'i', 0, 'n', 0, 'U', 0, 'S', 0, 'B', 0, ' ', 0,
'B', 0, 'u', 0, 'l', 0, 'k', 0, ' ', 0,
'I', 0, 'n', 0, 't', 0, 'e', 0, 'r', 0, 'f', 0, 'a', 0, 'c', 0, 'e', 0
};
//*****************************************************************************
//
// The configuration description string.
//
//*****************************************************************************
const uint8_t g_pui8ConfigString[] =
{
(23 + 1) * 2,
USB_DTYPE_STRING,
'B', 0, 'u', 0, 'l', 0, 'k', 0, ' ', 0, 'D', 0, 'a', 0, 't', 0,
'a', 0, ' ', 0, 'C', 0, 'o', 0, 'n', 0, 'f', 0, 'i', 0, 'g', 0,
'u', 0, 'r', 0, 'a', 0, 't', 0, 'i', 0, 'o', 0, 'n', 0
};
//*****************************************************************************
//
// The descriptor string table.
//
//*****************************************************************************
const uint8_t *const g_ppui8StringDescriptors[] =
{
g_pui8LangDescriptor,
g_pui8ManufacturerString,
g_pui8ProductString,
g_pui8SerialNumberString,
g_pui8DataInterfaceString,
g_pui8ConfigString
};
#define NUM_STRING_DESCRIPTORS (sizeof(g_ppui8StringDescriptors) / \
sizeof(uint8_t *))
//*****************************************************************************
//
// The bulk device initialization and customization structures. In this case,
// we are using USBBuffers between the bulk device class driver and the
// application code. The function pointers and callback data values are set
// to insert a buffer in each of the data channels, transmit and receive.
//
// With the buffer in place, the bulk channel callback is set to the relevant
// channel function and the callback data is set to point to the channel
// instance data. The buffer, in turn, has its callback set to the application
// function and the callback data set to our bulk instance structure.
//
//*****************************************************************************
extern const tUSBBuffer g_sTxBuffer;
extern const tUSBBuffer g_sRxBuffer;
tUSBDBulkDevice g_sBulkDevice =
{
0x0145,
0x0023,
500,
USB_CONF_ATTR_SELF_PWR,
USBBufferEventCallback,
(void *)&g_sRxBuffer,
USBBufferEventCallback,
(void *)&g_sTxBuffer,
g_ppui8StringDescriptors,
NUM_STRING_DESCRIPTORS
};
//*****************************************************************************
//
// Receive buffer (from the USB perspective).
//
//*****************************************************************************
uint8_t g_pui8USBRxBuffer[BULK_BUFFER_SIZE];
uint8_t g_pui8RxBufferWorkspace[USB_BUFFER_WORKSPACE_SIZE];
const tUSBBuffer g_sRxBuffer =
{
false, // This is a receive buffer.
UsbBulkRxHandler, // pfnCallback
(void *)&g_sBulkDevice, // Callback data is our device pointer.
USBDBulkPacketRead, // pfnTransfer
USBDBulkRxPacketAvailable, // pfnAvailable
(void *)&g_sBulkDevice, // pvHandle
g_pui8USBRxBuffer, // pi8Buffer
BULK_BUFFER_SIZE, // ui32BufferSize
g_pui8RxBufferWorkspace // pvWorkspace
};
//*****************************************************************************
//
// Transmit buffer (from the USB perspective).
//
//*****************************************************************************
uint8_t g_pui8USBTxBuffer[BULK_BUFFER_SIZE];
uint8_t g_pui8TxBufferWorkspace[USB_BUFFER_WORKSPACE_SIZE];
const tUSBBuffer g_sTxBuffer =
{
true, // This is a transmit buffer.
UsbBulkTxHandler, // pfnCallback
(void *)&g_sBulkDevice, // Callback data is our device pointer.
USBDBulkPacketWrite, // pfnTransfer
USBDBulkTxPacketAvailable, // pfnAvailable
(void *)&g_sBulkDevice, // pvHandle
g_pui8USBTxBuffer, // pi8Buffer
BULK_BUFFER_SIZE, // ui32BufferSize
g_pui8TxBufferWorkspace // pvWorkspace
};

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//*****************************************************************************
//
// usb_bulk_structs.h - Data structures defining this bulk USB device.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the DK-TM4C123G Firmware Package.
//
//*****************************************************************************
#ifndef _USB_BULK_STRUCTS_H_
#define _USB_BULK_STRUCTS_H_
//*****************************************************************************
//
// The size of the transmit and receive buffers used. 256 is chosen pretty
// much at random though the buffer should be at least twice the size of
// a maximum-sized USB packet.
//
//*****************************************************************************
#define BULK_BUFFER_SIZE 64
extern uint32_t UsbBulkRxHandler(void *pvCBData, uint32_t ui32Event,
uint32_t ui32MsgValue, void *pvMsgData);
extern uint32_t UsbBulkTxHandler(void *pvi32CBData, uint32_t ui32Event,
uint32_t ui32MsgValue, void *pvMsgData);
extern const tUSBBuffer g_sTxBuffer;
extern const tUSBBuffer g_sRxBuffer;
extern tUSBDBulkDevice g_sBulkDevice;
extern uint8_t g_pui8USBTxBuffer[];
extern uint8_t g_pui8USBRxBuffer[];
#endif

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//*****************************************************************************
//
// usbdaudio.h - USB audio device class driver.
//
// Copyright (c) 2009-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDAUDIO_H__
#define __USBDAUDIO_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup audio_device_class_api
//! @{
//
//*****************************************************************************
typedef void (* tUSBAudioBufferCallback)(void *pvBuffer, uint32_t ui32Param,
uint32_t ui32Event);
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// audio device class. The memory for this structure is pointed to by
// the pi16PrivateData field in the tUSBDAudioDevice structure passed on
// USBDAudioInit() and should not be modified by any code outside of the audio
// device.
//
//*****************************************************************************
typedef struct
{
//
// Base address for the USB controller.
//
uint32_t ui32USBBase;
//
// The device info to interact with the lower level DCD code.
//
tDeviceInfo sDevInfo;
//
// The maximum volume expressed as an 8.8 signed value.
//
int16_t i16VolumeMax;
//
// The minimum volume expressed as an 8.8 signed value.
//
int16_t i16VolumeMin;
//
// The minimum volume step expressed as an 8.8 signed value.
//
int16_t i16VolumeStep;
struct
{
//
// Pointer to a buffer provided by caller.
//
void *pvData;
//
// Size of the data area provided in pvData in bytes.
//
uint32_t ui32Size;
//
// Number of valid bytes copied into the pvData area.
//
uint32_t ui32NumBytes;
//
// The buffer callback for this function.
//
tUSBAudioBufferCallback pfnCallback;
}
sBuffer;
//
// Pending request type.
//
uint16_t ui16RequestType;
//
// Pending request.
//
uint8_t ui8Request;
//
// Pending update value.
//
uint16_t ui16Update;
//
// Current Volume setting.
//
int16_t i16Volume;
//
// Current Mute setting.
//
uint8_t ui8Mute;
//
// Current Sample rate, this is not writable but the host will try.
//
uint32_t ui32SampleRate;
//
// The OUT endpoint in use by this instance.
//
uint8_t ui8OUTEndpoint;
//
// The OUT endpoint DMA channel in use by this instance.
//
uint8_t ui8OUTDMA;
//
// The control interface number associated with this instance.
//
uint8_t ui8InterfaceControl;
//
// The audio interface number associated with this instance.
//
uint8_t ui8InterfaceAudio;
//
// A copy of the DMA instance data used with calls to USBLibDMA functions.
//
tUSBDMAInstance *psDMAInstance;
}
tAudioInstance;
//*****************************************************************************
//
// This is the size of the g_pui8IADAudioDescriptor array in bytes.
//
//*****************************************************************************
#define AUDIODESCRIPTOR_SIZE (8)
//*****************************************************************************
//
// This is the size of the g_pui8AudioControlInterface array in bytes.
//
//*****************************************************************************
#define CONTROLINTERFACE_SIZE (52)
//*****************************************************************************
//
// This is the size of the g_pui8AudioStreamInterface array in bytes.
//
//*****************************************************************************
#define STREAMINTERFACE_SIZE (52)
//*****************************************************************************
//
//! The size of the memory that should be allocated to create a configuration
//! descriptor for a single instance of the USB Audio Device.
//! This does not include the configuration descriptor which is automatically
//! ignored by the composite device class.
//
//*****************************************************************************
#define COMPOSITE_DAUDIO_SIZE (AUDIODESCRIPTOR_SIZE + \
CONTROLINTERFACE_SIZE + STREAMINTERFACE_SIZE)
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the device audio class.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! 8 byte vendor string.
//
const char pcVendor[8];
//
//! 16 byte vendor string.
//
const char pcProduct[16];
//
//! 4 byte vendor string.
//
const char pcVersion[4];
//
//! The maximum power consumption of the device, expressed in mA.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self or bus-powered and whether or not
//! it supports remote wake up. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the callback function which will be called to notify
//! the application of events relating to the operation of the audio
//! device.
//
const tUSBCallback pfnCallback;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1), Audio
//! Interface description string (language 1), Configuration description
//! string (language 1).
//!
//! If supporting more than 1 language, the descriptor block (except for
//! string descriptor 0) must be repeated for each language defined in the
//! language descriptor.
//!
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be 1 + ((5 + (number of strings)) *
//! (number of languages)).
//
const uint32_t ui32NumStringDescriptors;
//
//! The maximum volume expressed as an 8.8 signed value.
//
const int16_t i16VolumeMax;
//
//! The minimum volume expressed as an 8.8 signed value.
//
const int16_t i16VolumeMin;
//
//! The minimum volume step expressed as an 8.8 signed value.
//
const int16_t i16VolumeStep;
//
//! The private instance data for the audio device.
//
tAudioInstance sPrivateData;
}
tUSBDAudioDevice;
//*****************************************************************************
//
// Audio specific device class driver events
//
//*****************************************************************************
//*****************************************************************************
//
//! This USB audio event indicates that the device is connected but not active.
//
//*****************************************************************************
#define USBD_AUDIO_EVENT_IDLE (USBD_AUDIO_EVENT_BASE + 0)
//*****************************************************************************
//
//! This USB audio event indicates that the device is connected and is now
//! active.
//
//*****************************************************************************
#define USBD_AUDIO_EVENT_ACTIVE (USBD_AUDIO_EVENT_BASE + 1)
//*****************************************************************************
//
//! This USB audio event indicates that the device is returning a data buffer
//! provided by the USBAudioBufferOut() function back to the application with
//! valid audio data received from the USB host controller. The \e pvBuffer
//! parameter holds the pointer to the buffer with the new audio data and
//! the \e ui32Param value holds the amount of valid data in bytes that are
//! contained in the \e pvBuffer parameter.
//
//*****************************************************************************
#define USBD_AUDIO_EVENT_DATAOUT (USBD_AUDIO_EVENT_BASE + 2)
//*****************************************************************************
//
//! This USB audio event indicates that a volume change has occurred. The
//! \e ui32Param value contains a signed 8.8 fixed point value that represents
//! the current volume gain/attenuation in decibels(dB). The provided message
//! handler should be prepared to handle negative and positive values with the
//! value 0x8000 indicating maximum attenuation. The \e pvBuffer parameter
//! should be ignored.
//
//*****************************************************************************
#define USBD_AUDIO_EVENT_VOLUME (USBD_AUDIO_EVENT_BASE + 4)
//*****************************************************************************
//
//! This USB audio event indicates that a mute request has occurred. The
//! \e ui32Param value will either be a 1 to indicate that the audio is now
//! muted, and a value of 0 indicates that the audio has been unmuted.
//
//*****************************************************************************
#define USBD_AUDIO_EVENT_MUTE (USBD_AUDIO_EVENT_BASE + 5)
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDAudioInit(uint32_t ui32Index,
tUSBDAudioDevice *psAudioDevice);
extern void *USBDAudioCompositeInit(uint32_t ui32Index,
tUSBDAudioDevice *psAudioDevice,
tCompositeEntry *psCompEntry);
extern void USBDAudioTerm(void *pvAudioDevice);
extern int32_t USBAudioBufferOut(void *pvAudioDevice, void *pvBuffer,
uint32_t ui32Size,
tUSBAudioBufferCallback pfnCallback);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbdcdc.h - USBLib support for a generic bulk device.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDBULK_H__
#define __USBDBULK_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup bulk_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB Bulk example code and are here only to help with the application
// allocating the correct amount of memory for the Bulk example device code.
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the device can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
//
// Not configured.
//
eBulkStateUnconfigured,
//
// No outstanding transaction remains to be completed.
//
eBulkStateIdle,
//
// Waiting on completion of a send or receive transaction.
//
eBulkStateWaitData,
//
// Waiting for client to process data.
//
eBulkStateWaitClient
}
tBulkState;
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// Bulk only example device. The memory for this structure is inlcluded in
// the sPrivateData field in the tUSBDBulkDevice structure passed on
// USBDBulkInit().
//
//*****************************************************************************
typedef struct
{
//
// Base address for the USB controller.
//
uint32_t ui32USBBase;
//
// The device info to interact with the lower level DCD code.
//
tDeviceInfo sDevInfo;
//
// The state of the bulk receive channel.
//
volatile tBulkState iBulkRxState;
//
// The state of the bulk transmit channel.
//
volatile tBulkState iBulkTxState;
//
// State of any pending operations that could not be handled immediately
// upon receipt.
//
volatile uint16_t ui16DeferredOpFlags;
//
// Size of the last transmit.
//
uint16_t ui16LastTxSize;
//
// The connection status of the device.
//
volatile bool bConnected;
//
// The IN endpoint number, this is modified in composite devices.
//
uint8_t ui8INEndpoint;
//
// The OUT endpoint number, this is modified in composite devices.
//
uint8_t ui8OUTEndpoint;
//
// The bulk class interface number, this is modified in composite devices.
//
uint8_t ui8Interface;
}
tBulkInstance;
//*****************************************************************************
//
// This is the size of the g_pui8BulkInterface array in bytes.
//
//*****************************************************************************
#define BULKINTERFACE_SIZE (23)
//*****************************************************************************
//
//! The size of the memory that should be allocated to create a configuration
//! descriptor for a single instance of the USB Bulk Device.
//! This does not include the configuration descriptor which is automatically
//! ignored by the composite device class.
//
//*****************************************************************************
#define COMPOSITE_DBULK_SIZE (BULKINTERFACE_SIZE)
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the bulk device.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! The maximum power consumption of the device, expressed in milliamps.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self- or bus-powered and whether or not
//! it supports remote wakeup. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the callback function which will be called to notify
//! the application of events related to the device's data receive channel.
//
const tUSBCallback pfnRxCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the receive channel callback,
//! pfnRxCallback.
//
void *pvRxCBData;
//
//! A pointer to the callback function which will be called to notify
//! the application of events related to the device's data transmit
//! channel.
//
const tUSBCallback pfnTxCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the transmit channel callback,
//! pfnTxCallback.
//
void *pvTxCBData;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain pointers to the following string descriptors in this
//! order. Language descriptor, Manufacturer name string (language 1),
//! Product name string (language 1), Serial number string (language 1),
//! Interface description string (language 1) and Configuration description
//! string (language 1).
//!
//! If supporting more than 1 language, the strings for indices 1 through 5
//! must be repeated for each of the other languages defined in the
//! language descriptor.
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors array.
//! This must be 1 + (5 * number of supported languages).
//
const uint32_t ui32NumStringDescriptors;
//
//! The private instance data for this device. This memory must
//! not be modified by any code outside the bulk class driver.
//
tBulkInstance sPrivateData;
}
tUSBDBulkDevice;
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDBulkInit(uint32_t ui32Index, tUSBDBulkDevice *psBulkDevice);
extern void *USBDBulkCompositeInit(uint32_t ui32Index,
tUSBDBulkDevice *psBulkDevice,
tCompositeEntry *psCompEntry);
extern void USBDBulkTerm(void *pvBulkInstance);
extern void *USBDBulkSetRxCBData(void *pvBulkInstance, void *pvCBData);
extern void *USBDBulkSetTxCBData(void *pvBulkInstance, void *pvCBData);
extern uint32_t USBDBulkPacketWrite(void *pvBulkInstance, uint8_t *pi8Data,
uint32_t ui32Length, bool bLast);
extern uint32_t USBDBulkPacketRead(void *pvBulkInstance, uint8_t *pi8Data,
uint32_t ui32Length, bool bLast);
extern uint32_t USBDBulkTxPacketAvailable(void *pvBulkInstance);
extern uint32_t USBDBulkRxPacketAvailable(void *pvBulkInstance);
extern void USBDBulkPowerStatusSet(void *pvBulkInstance, uint8_t ui8Power);
extern bool USBDBulkRemoteWakeupRequest(void *pvBulkInstance);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDBULK_H__

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//*****************************************************************************
//
// usbdcdc.h - USBLib support for generic CDC ACM (serial) device.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDCDC_H__
#define __USBDCDC_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup cdc_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB CDC Serial code and are here only to help with the application
// allocating the correct amount of memory for the CDC Serial device code.
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the device can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
//
// Unconfigured.
//
eCDCStateUnconfigured,
//
// No outstanding transaction remains to be completed.
//
eCDCStateIdle,
//
// Waiting on completion of a send or receive transaction.
//
eCDCStateWaitData,
//
// Waiting for client to process data.
//
eCDCStateWaitClient
}
tCDCState;
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// CDC Serial device. The memory for this structure is allocated in the
// tUSBDCDCDevice structure passed on USBDCDCInit().
//
//*****************************************************************************
typedef struct
{
//
// Base address for the USB controller.
//
uint32_t ui32USBBase;
//
// The device info to interact with the lower level DCD code.
//
tDeviceInfo sDevInfo;
//
// The state of the serial receive state.
//
volatile tCDCState iCDCRxState;
//
// The state of the serial transmit state.
//
volatile tCDCState iCDCTxState;
//
// The state of the serial request state.
//
volatile tCDCState iCDCRequestState;
//
// The state of the serial interrupt state.
//
volatile tCDCState iCDCInterruptState;
//
// The current pending request.
//
volatile uint8_t ui8PendingRequest;
//
// The current break duration used during send break requests.
//
uint16_t ui16BreakDuration;
//
// The current line control state for the serial port.
//
uint16_t ui16ControlLineState;
//
// The general serial state.
//
uint16_t ui16SerialState;
//
// State of any pending operations that could not be handled immediately
// upon receipt.
//
volatile uint16_t ui16DeferredOpFlags;
//
// Size of the last transmit.
//
uint16_t ui16LastTxSize;
//
// The current serial line coding.
//
tLineCoding sLineCoding;
//
// Serial port receive is blocked.
//
volatile bool bRxBlocked;
//
// Serial control port is blocked.
//
volatile bool bControlBlocked;
//
// The connection status of the device.
//
volatile bool bConnected;
//
// The control endpoint number, this is modified in composite devices.
//
uint8_t ui8ControlEndpoint;
//
// The IN endpoint number, this is modified in composite devices.
//
uint8_t ui8BulkINEndpoint;
//
// The OUT endpoint number, this is modified in composite devices.
//
uint8_t ui8BulkOUTEndpoint;
//
// The interface number for the control interface, this is modified in
// composite devices.
//
uint8_t ui8InterfaceControl;
//
// The interface number for the data interface, this is modified in
// composite devices.
//
uint8_t ui8InterfaceData;
}
tCDCSerInstance;
//*****************************************************************************
//
// The following defines are used when working with composite devices.
//
//*****************************************************************************
//*****************************************************************************
//
// This is the size of the g_pui8IADSerDescriptor array in bytes.
//
//*****************************************************************************
#define SERDESCRIPTOR_SIZE (8)
//*****************************************************************************
//
// This is the size of the g_pui8CDCSerCommInterface array in bytes.
//
//*****************************************************************************
#define SERCOMMINTERFACE_SIZE (35)
//*****************************************************************************
//
// This is the size of the g_pui8CDCSerDataInterface array in bytes.
//
//*****************************************************************************
#define SERDATAINTERFACE_SIZE (23)
//*****************************************************************************
//
//! The size of the memory that should be allocated to create a configuration
//! descriptor for a single instance of the USB Serial CDC Device.
//! This does not include the configuration descriptor which is automatically
//! ignored by the composite device class.
//
//*****************************************************************************
#define COMPOSITE_DCDC_SIZE (SERDESCRIPTOR_SIZE + SERCOMMINTERFACE_SIZE + \
SERDATAINTERFACE_SIZE)
//*****************************************************************************
//
// CDC-specific events These events are provided to the application in the
// \e ui32Msg parameter of the tUSBCallback function.
//
//*****************************************************************************
//
//! The host requests that the device send a BREAK condition on its
//! serial communication channel. The BREAK should remain active until
//! a USBD_CDC_EVENT_CLEAR_BREAK event is received.
//
#define USBD_CDC_EVENT_SEND_BREAK (USBD_CDC_EVENT_BASE + 0)
//
//! The host requests that the device stop sending a BREAK condition on its
//! serial communication channel.
//
#define USBD_CDC_EVENT_CLEAR_BREAK (USBD_CDC_EVENT_BASE + 1)
//
//! The host requests that the device set the RS232 signaling lines to
//! a particular state. The ui32MsgValue parameter contains the RTS and
//! DTR control line states as defined in table 51 of the USB CDC class
//! definition and is a combination of the following values:
//!
//! (RTS) USB_CDC_DEACTIVATE_CARRIER or USB_CDC_ACTIVATE_CARRIER
//! (DTR) USB_CDC_DTE_NOT_PRESENT or USB_CDC_DTE_PRESENT
//
#define USBD_CDC_EVENT_SET_CONTROL_LINE_STATE (USBD_CDC_EVENT_BASE + 2)
//
//! The host requests that the device set the RS232 communication
//! parameters. The pvMsgData parameter points to a tLineCoding structure
//! defining the required number of bits per character, parity mode,
//! number of stop bits and the baud rate.
//
#define USBD_CDC_EVENT_SET_LINE_CODING (USBD_CDC_EVENT_BASE + 3)
//
//! The host is querying the current RS232 communication parameters. The
//! pvMsgData parameter points to a tLineCoding structure that the
//! application must fill with the current settings prior to returning
//! from the callback.
//
#define USBD_CDC_EVENT_GET_LINE_CODING (USBD_CDC_EVENT_BASE + 4)
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the CDC device.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! The maximum power consumption of the device, expressed in milliamps.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self- or bus-powered and whether or not
//! it supports remote wakeup. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the callback function which will be called to notify
//! the application of all asynchronous control events related to the
//! operation of the device.
//
const tUSBCallback pfnControlCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the control channel callback,
//! pfnControlCallback.
//
void *pvControlCBData;
//
//! A pointer to the callback function which will be called to notify
//! the application of events related to the device's data receive channel.
//
const tUSBCallback pfnRxCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the receive channel callback,
//! pfnRxCallback.
//
void *pvRxCBData;
//
//! A pointer to the callback function which will be called to notify
//! the application of events related to the device's data transmit
//! channel.
//
const tUSBCallback pfnTxCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the transmit channel callback,
//! pfnTxCallback.
//
void *pvTxCBData;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1),
//! Control interface description string (language 1), Configuration
//! description string (language 1).
//!
//! If supporting more than 1 language, the strings for indices 1 through 5
//! must be repeated for each of the other languages defined in the
//! language descriptor.
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be 1 + (5 * number of supported languages).
//
const uint32_t ui32NumStringDescriptors;
//
//! The private instance data for this device. This memory
//! must remain accessible for as long as the CDC device is in use and
//! must not be modified by any code outside the CDC class driver.
//
tCDCSerInstance sPrivateData;
}
tUSBDCDCDevice;
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDCDCCompositeInit(uint32_t ui32Index,
tUSBDCDCDevice *psCDCDevice,
tCompositeEntry *psCompEntry);
extern void *USBDCDCInit(uint32_t ui32Index,
tUSBDCDCDevice *psCDCDevice);
extern void USBDCDCTerm(void *pvCDCDevice);
extern void *USBDCDCSetControlCBData(void *pvCDCDevice, void *pvCBData);
extern void *USBDCDCSetRxCBData(void *pvCDCDevice, void *pvCBData);
extern void *USBDCDCSetTxCBData(void *pvCDCDevice, void *pvCBData);
extern uint32_t USBDCDCPacketWrite(void *pvCDCDevice, uint8_t *pi8Data,
uint32_t ui32Length, bool bLast);
extern uint32_t USBDCDCPacketRead(void *pvCDCDevice, uint8_t *pi8Data,
uint32_t ui32Length, bool bLast);
extern uint32_t USBDCDCTxPacketAvailable(void *pvCDCDevice);
extern uint32_t USBDCDCRxPacketAvailable(void *pvCDCDevice);
extern void USBDCDCSerialStateChange(void *pvCDCDevice, uint16_t ui16State);
extern void USBDCDCPowerStatusSet(void *pvCDCDevice, uint8_t ui8Power);
extern bool USBDCDCRemoteWakeupRequest(void *pvCDCDevice);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDCDC_H__

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//*****************************************************************************
//
// usbcdesc.c - Config descriptor parsing functions.
//
// Copyright (c) 2007-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/device/usbdevice.h"
//*****************************************************************************
//
// The functions in this file mirror the descriptor parsing APIs available
// in usblib.h but parse configuration descriptors defined in terms of a list
// of sections rather than as a single block of descriptor data.
//
//*****************************************************************************
//*****************************************************************************
//
//! \addtogroup device_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! \internal
//!
//! Walk to the next descriptor after the supplied one within a section-based
//! config descriptor.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor which contains \e pi16Desc.
//! \param pui32Sec points to a variable containing the section within
//! \e psConfig which contains \e pi16Desc.
//! \param pi16Desc points to the descriptor that we want to step past.
//!
//! This function walks forward one descriptor within a configuration
//! descriptor. The value returned is a pointer to the header of the next
//! descriptor after the descriptor supplied in \e pi16Desc. If the next
//! descriptor is in the next section, \e *pui32Sec will be incremented
//! accordingly.
//!
//! \return Returns a pointer to the next descriptor in the configuration
//! descriptor.
//
//*****************************************************************************
static tDescriptorHeader *
NextConfigDescGet(const tConfigHeader *psConfig, uint32_t *pui32Sec,
tDescriptorHeader *psDesc)
{
//
// Determine where the next descriptor after the supplied one should be
// assuming it is within the current section.
//
psDesc = NEXT_USB_DESCRIPTOR(psDesc);
//
// Did we run off the end of the section?
//
if((uint8_t *)psDesc >= (psConfig->psSections[*pui32Sec]->pui8Data +
psConfig->psSections[*pui32Sec]->ui16Size))
{
//
// Yes - move to the next section.
//
(*pui32Sec)++;
//
// Are we still within the configuration descriptor?
//
if(*pui32Sec < psConfig->ui8NumSections)
{
//
// Yes - the new descriptor is at the start of the new section.
//
psDesc =
(tDescriptorHeader *)psConfig->psSections[*pui32Sec]->pui8Data;
}
else
{
//
// No - we ran off the end of the descriptor so return NULL.
//
psDesc = (tDescriptorHeader *)0;
}
}
//
// Return the new descriptor pointer.
//
return(psDesc);
}
//*****************************************************************************
//
//! \internal
//!
//! Returns a pointer to the n-th interface descriptor in a configuration
//! descriptor with the supplied interface number.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor to search.
//! \param ui8InterfaceNumber is the interface number of the descriptor to
//! query.
//! \param ui32Index is the zero based index of the descriptor.
//! \param pui32Section points to storage which is written with the index
//! of the section containing the returned descriptor.
//!
//! This function returns a pointer to the n-th interface descriptor in the
//! supplied configuration which has the requested interface number. It may be
//! used by a client to retrieve the descriptors for each alternate setting
//! of a given interface within the configuration passed.
//!
//! \return Returns a pointer to the n-th interface descriptor with interface
//! number as specified or NULL of this descriptor does not exist.
//
//*****************************************************************************
static tInterfaceDescriptor *
ConfigAlternateInterfaceGet(const tConfigHeader *psConfig,
uint8_t ui8InterfaceNumber, uint32_t ui32Index,
uint32_t *pui32Section)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32Count, ui32Sec;
//
// Set up for our descriptor counting loop.
//
psDescCheck = (tDescriptorHeader *)psConfig->psSections[0]->pui8Data;
ui32Count = 0;
ui32Sec = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(psDescCheck)
{
//
// Does this descriptor match the type passed (if a specific type
// has been specified)?
//
if((psDescCheck->bDescriptorType == USB_DTYPE_INTERFACE) &&
(((tInterfaceDescriptor *)psDescCheck)->bInterfaceNumber ==
ui8InterfaceNumber))
{
//
// This is an interface descriptor for interface
// ui8InterfaceNumber. Determine if this is the n-th one we have
// found and, if so, return its pointer.
//
if(ui32Count == ui32Index)
{
//
// Found it - return the pointer and section number.
//
*pui32Section = ui32Sec;
return((tInterfaceDescriptor *)psDescCheck);
}
//
// Increment our count of matching descriptors found and go back
// to look for another since we have not yet reached the n-th
// match.
//
ui32Count++;
}
//
// Move on to the next descriptor.
//
psDescCheck = NextConfigDescGet(psConfig, &ui32Sec, psDescCheck);
}
//
// If we drop out the end of the loop, we did not find the requested
// descriptor so return NULL.
//
return((tInterfaceDescriptor *)0);
}
//*****************************************************************************
//
//! \internal
//!
//! Determines the total length of a configuration descriptor defined in terms
//! of a collection of concatenated sections.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor whose size is to be determined.
//!
//! \return Returns the number of bytes in the configuration descriptor will
//! result from concatenating the required sections.
//
//*****************************************************************************
uint32_t
USBDCDConfigDescGetSize(const tConfigHeader *psConfig)
{
uint32_t ui32Loop, ui32Len;
ui32Len = 0;
//
// Determine the size of the whole descriptor by adding the sizes of
// each section which will be concatenated to produce it.
//
for(ui32Loop = 0; ui32Loop < psConfig->ui8NumSections; ui32Loop++)
{
ui32Len += psConfig->psSections[ui32Loop]->ui16Size;
}
return(ui32Len);
}
//*****************************************************************************
//
//! \internal
//!
//! Determines the number of individual descriptors of a particular type within
//! a supplied configuration descriptor.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor that is to be searched.
//! \param ui32Type identifies the type of descriptor that is to be counted.
//! If the value is \b USB_DESC_ANY, the function returns the total number of
//! descriptors regardless of type.
//!
//! This function can be used to count the number of descriptors of a
//! particular type within a configuration descriptor. The caller can provide
//! a specific type value which the function matches against the second byte
//! of each descriptor or, alternatively, can specify \b USB_DESC_ANY to have
//! the function count all descriptors regardless of their type.
//!
//! The search performed by this function traverses through the list of
//! sections comprising the configuration descriptor. Note that the similar
//! top-level function, USBDescGetNum(), searches through a single, contiguous
//! block of data to perform the same enumeration.
//!
//! \return Returns the number of descriptors found in the supplied block of
//! data.
//
//*****************************************************************************
uint32_t
USBDCDConfigDescGetNum(const tConfigHeader *psConfig, uint32_t ui32Type)
{
uint32_t ui32Section, ui32NumDescs;
//
// Initialize our counts.
//
ui32NumDescs = 0;
//
// Determine the number of descriptors of the given type in each of the
// sections comprising the configuration descriptor. Note that this
// assumes each section contains only whole descriptors!
//
for(ui32Section = 0; ui32Section < (uint32_t)psConfig->ui8NumSections;
ui32Section++)
{
ui32NumDescs += USBDescGetNum(
(tDescriptorHeader *)psConfig->psSections[ui32Section]->pui8Data,
psConfig->psSections[ui32Section]->ui16Size, ui32Type);
}
return(ui32NumDescs);
}
//*****************************************************************************
//
//! \internal
//!
//! Finds the n-th descriptor of a particular type within the supplied
//! configuration descriptor.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor that is to be searched.
//! \param ui32Type identifies the type of descriptor that is to be found. If
//! the value is \b USB_DESC_ANY, the function returns a pointer to the n-th
//! descriptor regardless of type.
//! \param ui32Index is the zero based index of the descriptor whose pointer is
//! to be returned. For example, passing value 1 in \e ui32Index returns the
//! second matching descriptor.
//! \param pui32Section points to storage which will receive the section index
//! containing the requested descriptor.
//!
//! Return a pointer to the n-th descriptor of a particular type found in the
//! configuration descriptor passed.
//!
//! The search performed by this function traverses through the list of
//! sections comprising the configuration descriptor. Note that the similar
//! top-level function, USBDescGet(), searches through a single, contiguous
//! block of data to perform the same enumeration.
//!
//! \return Returns a pointer to the header of the required descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tDescriptorHeader *
USBDCDConfigDescGet(const tConfigHeader *psConfig, uint32_t ui32Type,
uint32_t ui32Index, uint32_t *pui32Section)
{
uint32_t ui32Section, ui32TotalDescs, ui32NumDescs;
//
// Initialize our counts.
//
ui32TotalDescs = 0;
//
// Determine the number of descriptors of the given type in each of the
// sections comprising the configuration descriptor. This allows us to
// determine which section contains the descriptor we are being asked for.
//
for(ui32Section = 0; ui32Section < (uint32_t)psConfig->ui8NumSections;
ui32Section++)
{
//
// How many descriptors of the requested type exist in this section?
//
ui32NumDescs = USBDescGetNum(
(tDescriptorHeader *)psConfig->psSections[ui32Section]->pui8Data,
psConfig->psSections[ui32Section]->ui16Size, ui32Type);
//
// Does this section contain the descriptor whose index we are looking
// for?
//
if((ui32TotalDescs + ui32NumDescs) > ui32Index)
{
//
// We know the requested descriptor exists in the current
// block so write the section number to the caller's storage.
//
*pui32Section = ui32Section;
//
// Now find the actual descriptor requested and return its pointer.
//
return(USBDescGet(
(tDescriptorHeader *)psConfig->psSections[ui32Section]->pui8Data,
psConfig->psSections[ui32Section]->ui16Size,
ui32Type, ui32Index - ui32TotalDescs));
}
//
// We have not found the required descriptor yet. Update our running
// count of the number of type matches found so far then move on to
// the next section.
//
ui32TotalDescs += ui32NumDescs;
}
//
// If we drop out of the loop, we can't find the requested descriptor
// so return NULL.
//
return((tDescriptorHeader *)0);
}
//*****************************************************************************
//
//! \internal
//!
//! Determines the number of different alternate configurations for a given
//! interface within a configuration descriptor.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor that is to be searched.
//! \param ui8InterfaceNumber is the interface number for which the number of
//! alternate configurations is to be counted.
//!
//! This function can be used to count the number of alternate settings for a
//! specific interface within a configuration.
//!
//! The search performed by this function traverses through the list of
//! sections comprising the configuration descriptor. Note that the similar
//! top-level function, USBDescGetNumAlternateInterfaces(), searches through
//! a single, contiguous block of data to perform the same enumeration.
//!
//! \return Returns the number of alternate versions of the specified interface
//! or 0 if the interface number supplied cannot be found in the configuration
//! descriptor.
//
//*****************************************************************************
uint32_t
USBDCDConfigGetNumAlternateInterfaces(const tConfigHeader *psConfig,
uint8_t ui8InterfaceNumber)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32Count, ui32Sec;
//
// Set up for our descriptor counting loop.
//
psDescCheck = (tDescriptorHeader *)psConfig->psSections[0]->pui8Data;
ui32Sec = 0;
ui32Count = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(psDescCheck)
{
//
// Is this an interface descriptor with the required interface number?
//
if((psDescCheck->bDescriptorType == USB_DTYPE_INTERFACE) &&
(((tInterfaceDescriptor *)psDescCheck)->bInterfaceNumber ==
ui8InterfaceNumber))
{
//
// Yes - increment our count.
//
ui32Count++;
}
//
// Move on to the next descriptor.
//
psDescCheck = NextConfigDescGet(psConfig, &ui32Sec, psDescCheck);
}
//
// Return the descriptor count to the caller.
//
return(ui32Count);
}
//*****************************************************************************
//
//! \internal
//!
//! Returns a pointer to the n-th interface descriptor in a configuration
//! descriptor that applies to the supplied alternate setting number.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor that is to be searched.
//! \param ui32Index is the zero based index of the interface that is to be
//! found. If \e ui32Alt is set to a value other than \b USB_DESC_ANY, this
//! is equivalent to the interface number being searched for.
//! \param ui32Alt is the alternate setting number which is to be
//! searched for. If this value is \b USB_DESC_ANY, the alternate setting
//! is ignored and all interface descriptors are considered in the search.
//! \param pui32Section points to storage which will receive the index of the
//! config descriptor section which contains the requested interface
//! descriptor.
//!
//! Return a pointer to the n-th interface descriptor found in the supplied
//! configuration descriptor. If \e ui32Alt is not \b USB_DESC_ANY, only
//! interface descriptors which are part of the supplied alternate setting are
//! considered in the search otherwise all interface descriptors are
//! considered.
//!
//! Note that, although alternate settings can be applied on an interface-by-
//! interface basis, the number of interfaces offered is fixed for a given
//! config descriptor. Hence, this function will correctly find the unique
//! interface descriptor for that interface's alternate setting number \e
//! ui32Alt if \e ui32Index is set to the required interface number and
//! \e ui32Alt is set to a valid alternate setting number for that interface.
//!
//! The search performed by this function traverses through the list of
//! sections comprising the configuration descriptor. Note that the similar
//! top-level function, USBDescGetInterface(), searches through a single,
//! contiguous block of data to perform the same enumeration.
//!
//! \return Returns a pointer to the required interface descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tInterfaceDescriptor *
USBDCDConfigGetInterface(const tConfigHeader *psConfig, uint32_t ui32Index,
uint32_t ui32Alt, uint32_t *pui32Section)
{
//
// If we are being told to ignore the alternate configuration, this boils
// down to a very simple query.
//
if(ui32Alt == USB_DESC_ANY)
{
//
// Return the ui32Index-th interface descriptor we find in the
// configuration descriptor.
//
return((tInterfaceDescriptor *)USBDCDConfigDescGet(psConfig,
USB_DTYPE_INTERFACE,
ui32Index,
pui32Section));
}
else
{
//
// In this case, a specific alternate setting number is required.
// Given that interface numbers are zero based indices, we can
// pass the supplied ui32Index parameter directly as the interface
// number to USBDescGetAlternateInterface() to retrieve the requested
// interface descriptor pointer.
//
return(ConfigAlternateInterfaceGet(psConfig, ui32Index, ui32Alt,
pui32Section));
}
}
//*****************************************************************************
//
//! \internal
//!
//! Return a pointer to the n-th endpoint descriptor in a particular interface
//! within a configuration descriptor.
//!
//! \param psConfig points to the header structure for the configuration
//! descriptor that is to be searched.
//! \param ui32InterfaceNumber is the interface number whose endpoint is to be
//! found.
//! \param ui32AltCfg is the alternate setting number which is to be searched
//! for. This must be a valid alternate setting number for the requested
//! interface.
//! \param ui32Index is the zero based index of the endpoint that is to be
//! found within the appropriate alternate setting for the interface.
//!
//! Return a pointer to the n-th endpoint descriptor found in the supplied
//! interface descriptor. If the \e ui32Index parameter is invalid (greater
//! than or equal to the bNumEndpoints field of the interface descriptor) or
//! the endpoint descriptor cannot be found, the function will return NULL.
//!
//! The search performed by this function traverses through the list of
//! sections comprising the configuration descriptor. Note that the similar
//! top-level function, USBDescGetInterfaceEndpoint(), searches through a
//! single, contiguous block of data to perform the same enumeration.
//!
//! \return Returns a pointer to the requested endpoint descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tEndpointDescriptor *
USBDCDConfigGetInterfaceEndpoint(const tConfigHeader *psConfig,
uint32_t ui32InterfaceNumber,
uint32_t ui32AltCfg, uint32_t ui32Index)
{
tInterfaceDescriptor *psInterface;
tDescriptorHeader *psEndpoint;
uint32_t ui32Section, ui32Count;
//
// Find the requested interface descriptor.
//
psInterface = USBDCDConfigGetInterface(psConfig, ui32InterfaceNumber,
ui32AltCfg, &ui32Section);
//
// Did we find the requested interface?
//
if(psInterface)
{
//
// Is the index passed valid?
//
if(ui32Index >= psInterface->bNumEndpoints)
{
//
// It's out of bounds so return a NULL.
//
return((tEndpointDescriptor *)0);
}
else
{
//
// Endpoint index is valid so find the descriptor. We start from
// the interface descriptor and look for following endpoint
// descriptors.
//
ui32Count = 0;
psEndpoint = (tDescriptorHeader *)psInterface;
while(psEndpoint)
{
if(psEndpoint->bDescriptorType == USB_DTYPE_ENDPOINT)
{
//
// We found an endpoint descriptor. Have we reached the
// one we want?
//
if(ui32Count == ui32Index)
{
//
// Yes - return the descriptor pointer to the caller.
//
return((tEndpointDescriptor *)psEndpoint);
}
//
// Move on to look for the next endpoint.
//
ui32Count++;
}
//
// Move to the next descriptor.
//
psEndpoint = NextConfigDescGet(psConfig, &ui32Section,
psEndpoint);
}
}
}
//
// We could not find the requested interface or we got to the end of the
// descriptor without finding the requested endpoint.
//
return((tEndpointDescriptor *)0);
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbdcomp.h - USB composite device class driver.
//
// Copyright (c) 2010-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDCOMP_H__
#define __USBDCOMP_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
//*****************************************************************************
//
//! \addtogroup composite_device_class_api
//! @{
//
//*****************************************************************************
//
// Defines a single entry in a table of device types supported by the composite
// device.
//
typedef struct
{
//
// This is set internally by the composite class so it can be left
// uninitialized by the application.
//
const tDeviceInfo *psDeviceInfo;
//
// This should be the header to the configuration header for a class.
//
const tConfigHeader *psConfigHeader;
//
// The offset to this devices interface, filled in by the composite class.
//
uint8_t ui8IfaceOffset;
}
tUSBDCompositeEntry;
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// composite device class. The memory for this structure is included in
// the sPrivateData field in the tUSBDCompositeDevice structure passed on
// USBDCompositeInit() and should not be modified by any code outside of the
// composite device code.
//
//*****************************************************************************
typedef struct
{
//
// Saves which USB controller is in use.
//
uint32_t ui32USBBase;
//
// The device information pointer.
//
tDeviceInfo sDevInfo;
//
// This is the configuration descriptor for this instance.
//
tConfigDescriptor sConfigDescriptor;
//
// This is the device descriptor for this instance.
//
tDeviceDescriptor sDeviceDescriptor;
//
// The configuration header for this instance.
//
tConfigHeader sCompConfigHeader;
//
// These are the configuration sections that will be built from the
// Configuration Descriptor header and the descriptors from the devices
// that are part of this composite device.
//
tConfigSection psCompSections[2];
tConfigSection *ppsCompSections[2];
//
// The size and pointer to the data used by the instance.
//
uint32_t ui32DataSize;
uint8_t *pui8Data;
//
// The current "owner" of endpoint 0. This is used to track the device
// class which is currently transferring data on EP0.
//
uint32_t ui32EP0Owner;
}
tCompositeInstance;
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the composite device class.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! The maximum power consumption of the device, expressed in mA.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self or bus-powered and whether or not
//! it supports remote wake up. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the callback function which will be called to notify
//! the application of events relating to the operation of the composite
//! device.
//
const tUSBCallback pfnCallback;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1), Composite
//! device interface description string (language 1), Configuration
//! description string (language 1).
//!
//! If supporting more than 1 language, the descriptor block (except for
//! string descriptor 0) must be repeated for each language defined in the
//! language descriptor.
//!
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be 1 + ((5 + (number of strings)) *
//! (number of languages)).
//
const uint32_t ui32NumStringDescriptors;
//
//! The number of devices in the psDevices array.
//
const uint32_t ui32NumDevices;
//
//! This application supplied array holds the the top level device class
//! information as well as the Instance data for that class.
//
tCompositeEntry * const psDevices;
//
//! The private data for this device instance. This memory must remain
//! accessible for as long as the composite device is in use and must
//! not be modified by any code outside the composite class driver.
//
tCompositeInstance sPrivateData;
}
tUSBDCompositeDevice;
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
//*****************************************************************************
//
// Composite specific device class driver events
//
//*****************************************************************************
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDCompositeInit(uint32_t ui32Index,
tUSBDCompositeDevice *psCompDevice,
uint32_t ui32Size, uint8_t *pui8Data);
extern void USBDCompositeTerm(void *pvInstance);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbdconfig.c - High level USB device configuration function.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/device/usbdevice.h"
#include "usblib/device/usbdevicepriv.h"
//*****************************************************************************
//
//! \addtogroup device_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Structure used in compiling FIFO size and endpoint properties from a
// configuration descriptor.
//
//*****************************************************************************
typedef struct
{
uint32_t pui32Size[2];
}
tUSBEndpointInfo;
//*****************************************************************************
//
// Indices used when accessing the tUSBEndpointInfo structure.
//
//*****************************************************************************
#define EP_INFO_IN 0
#define EP_INFO_OUT 1
//*****************************************************************************
//
// Given a maximum packet size and the user's FIFO scaling requirements,
// determine the flags to use to configure the endpoint FIFO and the number
// of bytes of FIFO space occupied.
//
//*****************************************************************************
static uint32_t
GetEndpointFIFOSize(uint32_t ui32MaxPktSize, uint32_t *pupBytesUsed)
{
uint32_t ui32Loop, ui32FIFOSize;
//
// Now we need to find the nearest supported size that accommodates the
// requested size. Step through each of the supported sizes until we
// find one that will do.
//
for(ui32Loop = USB_FIFO_SZ_8; ui32Loop <= USB_FIFO_SZ_2048; ui32Loop++)
{
//
// How many bytes does this FIFO value represent?
//
ui32FIFOSize = USBFIFOSizeToBytes(ui32Loop);
//
// Is this large enough to hold one packet.
//
if(ui32FIFOSize >= ui32MaxPktSize)
{
//
// Return the FIFO size setting and the USB_FIFO_SZ_ value.
//
*pupBytesUsed = ui32FIFOSize;
return(ui32Loop);
}
}
//
// If we drop out, we can't support the FIFO size requested. Signal a
// problem by returning 0 in the pBytesUsed
//
*pupBytesUsed = 0;
return(USB_FIFO_SZ_8);
}
//*****************************************************************************
//
// Translate a USB endpoint descriptor into the values we need to pass to the
// USBDevEndpointConfigSet() API.
//
//*****************************************************************************
static void
GetEPDescriptorType(tEndpointDescriptor *psEndpoint, uint32_t *pui32EPIndex,
uint32_t *pui32MaxPktSize, uint32_t *pui32Flags)
{
//
// Get the endpoint index.
//
*pui32EPIndex = psEndpoint->bEndpointAddress & USB_EP_DESC_NUM_M;
//
// Extract the maximum packet size.
//
*pui32MaxPktSize = psEndpoint->wMaxPacketSize & USB_EP_MAX_PACKET_COUNT_M;
//
// Is this an IN or an OUT endpoint?
//
*pui32Flags = (psEndpoint->bEndpointAddress & USB_EP_DESC_IN) ?
USB_EP_DEV_IN : USB_EP_DEV_OUT;
//
// Set the endpoint mode.
//
switch(psEndpoint->bmAttributes & USB_EP_ATTR_TYPE_M)
{
case USB_EP_ATTR_CONTROL:
{
*pui32Flags |= USB_EP_MODE_CTRL;
break;
}
case USB_EP_ATTR_BULK:
{
*pui32Flags |= USB_EP_MODE_BULK;
break;
}
case USB_EP_ATTR_INT:
{
*pui32Flags |= USB_EP_MODE_INT;
break;
}
case USB_EP_ATTR_ISOC:
{
*pui32Flags |= USB_EP_MODE_ISOC;
break;
}
}
}
//*****************************************************************************
//
//! Configure the USB controller appropriately for the device whose
//! configuration descriptor is passed.
//!
//! \param psDevInst is a pointer to the device instance being configured.
//! \param psConfig is a pointer to the configuration descriptor that the
//! USB controller is to be set up to support.
//!
//! This function may be used to initialize a USB controller to operate as
//! the device whose configuration descriptor is passed. The function
//! enables the USB controller, partitions the FIFO appropriately and
//! configures each endpoint required by the configuration. If the supplied
//! configuration supports multiple alternate settings for any interface,
//! the USB FIFO is set up assuming the worst case use (largest packet size
//! for a given endpoint in any alternate setting using that endpoint) to
//! allow for on-the-fly alternate setting changes later. On return from this
//! function, the USB controller is configured for correct operation of
//! the default configuration of the device described by the descriptor passed.
//!
//! USBDCDConfig() is an optional call and applications may chose to make
//! direct calls to SysCtlPeripheralEnable(), SysCtlUSBPLLEnable(),
//! USBDevEndpointConfigSet() and USBFIFOConfigSet() instead of using this
//! function. If this function is used, it must be called prior to
//! USBDCDInit() since this call assumes that the low level hardware
//! configuration has been completed before it is made.
//!
//! \return Returns \b true on success or \b false on failure.
//
//*****************************************************************************
bool
USBDeviceConfig(tDCDInstance *psDevInst, const tConfigHeader *psConfig)
{
uint32_t ui32Loop, ui32Count, ui32NumInterfaces, ui32EpIndex, ui32EpType,
ui32MaxPkt, ui32NumEndpoints, ui32Flags, ui32BytesUsed,
ui32Section;
tInterfaceDescriptor *psInterface;
tEndpointDescriptor *psEndpoint;
tUSBEndpointInfo psEPInfo[NUM_USB_EP - 1];
//
// A valid device instance is required.
//
ASSERT(psDevInst != 0);
//
// Catch bad pointers in a debug build.
//
ASSERT(psConfig);
//
// Clear out our endpoint info.
//
for(ui32Loop = 0; ui32Loop < (NUM_USB_EP - 1); ui32Loop++)
{
psEPInfo[ui32Loop].pui32Size[EP_INFO_IN] = 0;
psEPInfo[ui32Loop].pui32Size[EP_INFO_OUT] = 0;
}
//
// How many (total) endpoints does this configuration describe?
//
ui32NumEndpoints = USBDCDConfigDescGetNum(psConfig,
USB_DTYPE_ENDPOINT);
//
// How many interfaces are included?
//
ui32NumInterfaces = USBDCDConfigDescGetNum(psConfig,
USB_DTYPE_INTERFACE);
//
// Look at each endpoint and determine the largest max packet size for
// each endpoint. This will determine how we partition the USB FIFO.
//
for(ui32Loop = 0; ui32Loop < ui32NumEndpoints; ui32Loop++)
{
//
// Get a pointer to the endpoint descriptor.
//
psEndpoint = (tEndpointDescriptor *)USBDCDConfigDescGet(
psConfig, USB_DTYPE_ENDPOINT, ui32Loop,
&ui32Section);
//
// Extract the endpoint number and whether it is an IN or OUT
// endpoint.
//
ui32EpIndex = (uint32_t)
psEndpoint->bEndpointAddress & USB_EP_DESC_NUM_M;
ui32EpType = (psEndpoint->bEndpointAddress & USB_EP_DESC_IN) ?
EP_INFO_IN : EP_INFO_OUT;
//
// Make sure the endpoint number is valid for our controller. If not,
// return false to indicate an error. Note that 0 is invalid since
// you shouldn't reference endpoint 0 in the config descriptor.
//
if((ui32EpIndex >= NUM_USB_EP) || (ui32EpIndex == 0))
{
return(false);
}
//
// Does this endpoint have a max packet size requirement larger than
// any previous use we have seen?
//
if(psEndpoint->wMaxPacketSize >
psEPInfo[ui32EpIndex - 1].pui32Size[ui32EpType])
{
//
// Yes - remember the new maximum packet size.
//
psEPInfo[ui32EpIndex - 1].pui32Size[ui32EpType] =
psEndpoint->wMaxPacketSize;
}
}
//
// At this point, we have determined the maximum packet size required
// for each endpoint by any possible alternate setting of any interface
// in this configuration. Now determine the endpoint settings required
// for the interface setting we are actually going to use.
//
for(ui32Loop = 0; ui32Loop < ui32NumInterfaces; ui32Loop++)
{
//
// Get the next interface descriptor in the configuration descriptor.
//
psInterface = USBDCDConfigGetInterface(psConfig, ui32Loop,
USB_DESC_ANY, &ui32Section);
//
// Is this the default interface (bAlternateSetting set to 0)?
//
if(psInterface && (psInterface->bAlternateSetting == 0))
{
//
// This is an interface we are interested in so gather the
// information on its endpoints.
//
ui32NumEndpoints = (uint32_t)psInterface->bNumEndpoints;
//
// Walk through each endpoint in this interface and configure
// it appropriately.
//
for(ui32Count = 0; ui32Count < ui32NumEndpoints; ui32Count++)
{
//
// Get a pointer to the endpoint descriptor.
//
psEndpoint = USBDCDConfigGetInterfaceEndpoint(psConfig,
psInterface->bInterfaceNumber,
psInterface->bAlternateSetting,
ui32Count);
//
// Make sure we got a good pointer.
//
if(psEndpoint)
{
//
// Determine maximum packet size and flags from the
// endpoint descriptor.
//
GetEPDescriptorType(psEndpoint, &ui32EpIndex, &ui32MaxPkt,
&ui32Flags);
//
// Make sure no-one is trying to configure endpoint 0.
//
if(!ui32EpIndex)
{
return(false);
}
//
// Set the endpoint configuration.
//
USBDevEndpointConfigSet(USB0_BASE,
IndexToUSBEP(ui32EpIndex),
ui32MaxPkt, ui32Flags);
}
}
}
}
//
// At this point, we have configured all the endpoints that are to be
// used by this configuration's alternate setting 0. Now we go on and
// partition the FIFO based on the maximum packet size information we
// extracted earlier. Endpoint 0 is automatically configured to use the
// first MAX_PACKET_SIZE_EP0 bytes of the FIFO so we start from there.
//
ui32Count = MAX_PACKET_SIZE_EP0;
for(ui32Loop = 1; ui32Loop < NUM_USB_EP; ui32Loop++)
{
//
// Configure the IN endpoint at this index if it is referred to
// anywhere.
//
if(psEPInfo[ui32Loop - 1].pui32Size[EP_INFO_IN])
{
//
// What FIFO size flag do we use for this endpoint?
//
ui32MaxPkt = GetEndpointFIFOSize(
psEPInfo[ui32Loop - 1].pui32Size[EP_INFO_IN],
&ui32BytesUsed);
//
// The FIFO space could not be allocated.
//
if(ui32BytesUsed == 0)
{
return(false);
}
//
// Now actually configure the FIFO for this endpoint.
//
USBFIFOConfigSet(USB0_BASE, IndexToUSBEP(ui32Loop), ui32Count,
ui32MaxPkt, USB_EP_DEV_IN);
ui32Count += ui32BytesUsed;
}
//
// Configure the OUT endpoint at this index.
//
if(psEPInfo[ui32Loop - 1].pui32Size[EP_INFO_OUT])
{
//
// What FIFO size flag do we use for this endpoint?
//
ui32MaxPkt = GetEndpointFIFOSize(
psEPInfo[ui32Loop - 1].pui32Size[EP_INFO_OUT],
&ui32BytesUsed);
//
// The FIFO space could not be allocated.
//
if(ui32BytesUsed == 0)
{
return(false);
}
//
// Now actually configure the FIFO for this endpoint.
//
USBFIFOConfigSet(USB0_BASE, IndexToUSBEP(ui32Loop), ui32Count,
ui32MaxPkt, USB_EP_DEV_OUT);
ui32Count += ui32BytesUsed;
}
}
//
// If we get to the end, all is well.
//
return(true);
}
//*****************************************************************************
//
//! Configure the affected USB endpoints appropriately for one alternate
//! interface setting.
//!
//! \param psDevInst is a pointer to the device instance being configured.
//! \param psConfig is a pointer to the configuration descriptor that contains
//! the interface whose alternate settings is to be configured.
//! \param ui8InterfaceNum is the number of the interface whose alternate
//! setting is to be configured. This number corresponds to the
//! bInterfaceNumber field in the desired interface descriptor.
//! \param ui8AlternateSetting is the alternate setting number for the desired
//! interface. This number corresponds to the bAlternateSetting field in the
//! desired interface descriptor.
//!
//! This function may be used to reconfigure the endpoints of an interface
//! for operation in one of the interface's alternate settings. Note that this
//! function assumes that the endpoint FIFO settings will not need to change
//! and only the endpoint mode is changed. This assumption is valid if the
//! USB controller was initialized using a previous call to USBDCDConfig().
//!
//! In reconfiguring the interface endpoints, any additional configuration
//! bits set in the endpoint configuration other than the direction (\b
//! USB_EP_DEV_IN or \b USB_EP_DEV_OUT) and mode (\b USB_EP_MODE_MASK) are
//! preserved.
//!
//! \return Returns \b true on success or \b false on failure.
//
//*****************************************************************************
bool
USBDeviceConfigAlternate(tDCDInstance *psDevInst,
const tConfigHeader *psConfig,
uint8_t ui8InterfaceNum,
uint8_t ui8AlternateSetting)
{
uint32_t ui32NumInterfaces, ui32NumEndpoints, ui32Loop, ui32Count,
ui32MaxPkt, ui32Flags, ui32Section, ui32EpIndex;
tInterfaceDescriptor *psInterface;
tEndpointDescriptor *psEndpoint;
//
// How many interfaces are included in the descriptor?
//
ui32NumInterfaces = USBDCDConfigDescGetNum(psConfig,
USB_DTYPE_INTERFACE);
//
// Find the interface descriptor for the supplied interface and alternate
// setting numbers.
//
for(ui32Loop = 0; ui32Loop < ui32NumInterfaces; ui32Loop++)
{
//
// Get the next interface descriptor in the configuration descriptor.
//
psInterface = USBDCDConfigGetInterface(psConfig, ui32Loop,
USB_DESC_ANY, &ui32Section);
//
// Is this the default interface (bAlternateSetting set to 0)?
//
if(psInterface &&
(psInterface->bInterfaceNumber == ui8InterfaceNum) &&
(psInterface->bAlternateSetting == ui8AlternateSetting))
{
//
// This is an interface we are interested in and the descriptor
// representing the alternate setting we want so go ahead and
// reconfigure the endpoints.
//
//
// How many endpoints does this interface have?
//
ui32NumEndpoints = (uint32_t)psInterface->bNumEndpoints;
//
// Walk through each endpoint in turn.
//
for(ui32Count = 0; ui32Count < ui32NumEndpoints; ui32Count++)
{
//
// Get a pointer to the endpoint descriptor.
//
psEndpoint = USBDCDConfigGetInterfaceEndpoint(psConfig,
psInterface->bInterfaceNumber,
psInterface->bAlternateSetting,
ui32Count);
//
// Make sure we got a good pointer.
//
if(psEndpoint)
{
//
// Determine maximum packet size and flags from the
// endpoint descriptor.
//
GetEPDescriptorType(psEndpoint, &ui32EpIndex, &ui32MaxPkt,
&ui32Flags);
//
// Make sure no-one is trying to configure endpoint 0.
//
if(!ui32EpIndex)
{
return(false);
}
//
// Set the endpoint configuration.
//
USBDevEndpointConfigSet(USB0_BASE,
IndexToUSBEP(ui32EpIndex),
ui32MaxPkt, ui32Flags);
}
}
//
// At this point, we have reconfigured the desired interface so
// return indicating all is well.
//
return(true);
}
}
return(false);
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbddfu-rt.c - USB Device Firmware Update runtime device class driver.
//
// Copyright (c) 2010-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_nvic.h"
#include "driverlib/debug.h"
#include "driverlib/usbdrv.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/interrupt.h"
#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/usbdfu.h"
#include "usblib/usb-ids.h"
#include "usblib/device/usbdevice.h"
#include "usblib/device/usbddfu-rt.h"
#include "usblib/usblibpriv.h"
//*****************************************************************************
//
//! \addtogroup dfu_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// DFU Device Descriptor. This is a dummy structure since runtime DFU must be
// a part of a composite device and cannot be instantiated on its own.
//
//*****************************************************************************
const uint8_t g_pui8DFUDeviceDescriptor[] =
{
18, // Size of this structure.
USB_DTYPE_DEVICE, // Type of this structure.
USBShort(0x110), // USB version 1.1 (if we say 2.0, hosts
// assume
// high-speed - see USB 2.0 spec 9.2.6.6)
USB_CLASS_VEND_SPECIFIC, // USB Device Class
0, // USB Device Sub-class
0, // USB Device protocol
64, // Maximum packet size for default pipe.
USBShort(0), // Vendor ID (VID).
USBShort(0), // Product ID (PID).
USBShort(0), // Device Release Number BCD.
0, // Manufacturer string identifier.
0, // Product string identifier.
0, // Product serial number.
1 // Number of configurations.
};
//*****************************************************************************
//
// DFU device runtime configuration descriptor. This is also a dummy structure
// since the primary device class configuration will be used when DFU is added
// to the composite device.
//
//*****************************************************************************
uint8_t g_pui8DFUConfigDescriptor[] =
{
//
// Configuration descriptor header.
//
9, // Size of the configuration descriptor.
USB_DTYPE_CONFIGURATION, // Type of this descriptor.
USBShort(27), // The total size of this full structure.
1, // The number of interfaces in this
// configuration.
1, // The unique value for this configuration.
0, // The string identifier that describes
// this configuration.
USB_CONF_ATTR_SELF_PWR, // Bus Powered, Self Powered, remote wake
// up.
250, // The maximum power in 2mA increments.
};
//*****************************************************************************
//
// The DFU runtime interface descriptor.
//
//*****************************************************************************
uint8_t g_pui8DFUInterface[DFUINTERFACE_SIZE] =
{
//
// Interface descriptor for runtime DFU operation.
//
9, // Length of this descriptor.
USB_DTYPE_INTERFACE, // This is an interface descriptor.
0, // Interface number .
0, // Alternate setting number.
0, // Number of endpoints (only endpoint 0
// used)
USB_CLASS_APP_SPECIFIC, // Application specific interface class
USB_DFU_SUBCLASS, // Device Firmware Upgrade subclass
USB_DFU_RUNTIME_PROTOCOL, // DFU runtime protocol
0, // No string descriptor for this interface.
};
//*****************************************************************************
//
// The DFU functional descriptor.
//
//*****************************************************************************
uint8_t g_pui8DFUFunctionalDesc[DFUFUNCTIONALDESC_SIZE] =
{
//
// Device Firmware Upgrade functional descriptor.
//
9, // Length of this descriptor.
USB_DFU_FUNC_DESCRIPTOR_TYPE, // DFU Functional descriptor type
(DFU_ATTR_CAN_DOWNLOAD | // DFU attributes.
DFU_ATTR_CAN_UPLOAD |
DFU_ATTR_WILL_DETACH |
DFU_ATTR_MANIFEST_TOLERANT),
USBShort(0xFFFF), // Detach timeout (set to maximum).
USBShort(DFU_TRANSFER_SIZE), // Transfer size 1KB.
USBShort(0x0110) // DFU Version 1.1
};
//*****************************************************************************
//
// The DFU runtime configuration descriptor is defined as two sections.
// These sections are:
//
// 1. The 9 byte configuration descriptor.
// 2. The interface descriptor + DFU functional descriptor.
//
//*****************************************************************************
const tConfigSection g_sDFUConfigSection =
{
sizeof(g_pui8DFUConfigDescriptor),
g_pui8DFUConfigDescriptor
};
const tConfigSection g_sDFUInterfaceSection =
{
sizeof(g_pui8DFUInterface),
g_pui8DFUInterface
};
const tConfigSection g_sDFUFunctionalDescSection =
{
sizeof(g_pui8DFUFunctionalDesc),
g_pui8DFUFunctionalDesc
};
//*****************************************************************************
//
// This array lists all the sections that must be concatenated to make a
// single, complete DFU runtime configuration descriptor.
//
//*****************************************************************************
const tConfigSection *g_psDFUSections[] =
{
&g_sDFUConfigSection,
&g_sDFUInterfaceSection,
&g_sDFUFunctionalDescSection
};
#define NUM_DFU_SECTIONS (sizeof(g_psDFUSections) / \
sizeof(g_psDFUSections[0]))
//*****************************************************************************
//
// The header for the single configuration we support. This is the root of
// the data structure that defines all the bits and pieces that are pulled
// together to generate the configuration descriptor.
//
//*****************************************************************************
tConfigHeader g_sDFUConfigHeader =
{
NUM_DFU_SECTIONS,
g_psDFUSections
};
//*****************************************************************************
//
// Configuration Descriptor.
//
//*****************************************************************************
const tConfigHeader * const g_ppsDFUConfigDescriptors[] =
{
&g_sDFUConfigHeader
};
//*****************************************************************************
//
// Forward references for device handler callbacks
//
//*****************************************************************************
static void HandleGetDescriptor(void *pvDFUInstance, tUSBRequest *psUSBRequest);
static void HandleRequest(void *pvDFUInstance, tUSBRequest *psUSBRequest);
static void HandleDevice(void *pvDFUInstance, uint32_t ui32Request,
void *pvRequestData);
//*****************************************************************************
//
// The device information structure for the USB DFU devices.
//
//*****************************************************************************
static const tCustomHandlers g_sDFUHandlers =
{
//
// GetDescriptor
//
HandleGetDescriptor,
//
// RequestHandler
//
HandleRequest,
//
// InterfaceChange
//
0,
//
// ConfigChange
//
0,
//
// DataReceived
//
0,
//
// DataSentCallback
//
0,
//
// ResetHandler
//
0,
//
// SuspendHandler
//
0,
//
//
//
// ResumeHandler
//
0,
//
// DisconnectHandler
//
0,
//
// EndpointHandler
//
0,
//
// Device handler.
//
HandleDevice,
};
//*****************************************************************************
//
// Device instance specific handler. This callback received notifications of
// events related to handling interface, endpoint and string identifiers when
// a device is part of a composite device. In this case, the only resource we
// need which may be renumbered is the DFU runtime interface.
//
//*****************************************************************************
static void
HandleDevice(void *pvDFUInstance, uint32_t ui32Request, void *pvRequestData)
{
tDFUInstance *psInst;
uint8_t *pui8Data;
//
// Get a pointer to the DFU device instance data pointer
//
psInst = &((tUSBDDFUDevice *)pvDFUInstance)->sPrivateData;
//
// Get a byte pointer to the data.
//
pui8Data = (uint8_t *)pvRequestData;
//
// Which request event have we been passed?
//
switch(ui32Request)
{
//
// This was an interface change event.
//
case USB_EVENT_COMP_IFACE_CHANGE:
{
//
// Save the change to the interface number.
//
psInst->ui8Interface = pui8Data[1];
break;
}
//
// We are not interested in any other event.
//
default:
{
break;
}
}
}
//*****************************************************************************
//
// This function is called by the USB device stack whenever a request for a
// non-standard descriptor is received.
//
// \param pvDFUInstance is the instance data for this request.
// \param psUSBRequest points to the request received.
//
// This call parses the provided request structure and determines which
// descriptor is being requested. Assuming the descriptor can be found, it is
// scheduled for transmission via endpoint zero. If the descriptor cannot be
// found, the endpoint is stalled to indicate an error to the host.
//
//*****************************************************************************
static void
HandleGetDescriptor(void *pvDFUInstance, tUSBRequest *psUSBRequest)
{
uint32_t ui32Size;
ASSERT(pvDFUInstance != 0);
//
// Which type of class descriptor are we being asked for? We only support
// 1 type - the DFU functional descriptor.
//
if(((psUSBRequest->wValue >> 8) == USB_DFU_FUNC_DESCRIPTOR_TYPE) &&
((psUSBRequest->wValue & 0xFF) == 0))
{
//
// If there is more data to send than the host requested then just
// send the requested amount of data.
//
if((uint16_t)g_pui8DFUFunctionalDesc[0] > psUSBRequest->wLength)
{
ui32Size = (uint32_t)psUSBRequest->wLength;
}
else
{
ui32Size = (uint32_t)g_pui8DFUFunctionalDesc[0];
}
//
// Send the data via endpoint 0.
//
USBDCDSendDataEP0(0, g_pui8DFUFunctionalDesc, ui32Size);
}
else
{
//
// This was an unknown or invalid request so stall.
//
USBDCDStallEP0(0);
}
}
//*****************************************************************************
//
// This function is called by the USB device stack whenever a non-standard
// request is received.
//
// \param pvDFUInstance is the instance data for this HID device.
// \param psUSBRequest points to the request received.
//
// This call parses the provided request structure. Assuming the request is
// understood, it is handled and any required response generated. If the
// request cannot be handled by this device class, endpoint zero is stalled to
// indicate an error to the host.
//
//*****************************************************************************
static void
HandleRequest(void *pvDFUInstance, tUSBRequest *psUSBRequest)
{
tDFUInstance *psInst;
tUSBDDFUDevice *psDevice;
ASSERT(pvDFUInstance != 0);
//
// Get a pointer to the DFU device structure
//
psDevice = pvDFUInstance;
//
// Get a pointer to the DFU device instance data pointer
//
psInst = &psDevice->sPrivateData;
//
// Make sure the request was for this interface.
//
if(psUSBRequest->wIndex != psInst->ui8Interface)
{
return;
}
//
// Determine the type of request.
//
switch(psUSBRequest->bRequest)
{
//
// We have been asked to detach. In this case, we call back to the
// application telling it to tidy up and re-enter the boot loader. We
// rely upon it doing this on our behalf since this must be done from a
// non-interrupt context and this call is most likely in interrupt
// context.
//
case USBD_DFU_REQUEST_DETACH:
{
//
// Tell the application it's time to reenter the boot loader.
//
psDevice->pfnCallback(psDevice->pvCBData, USBD_DFU_EVENT_DETACH,
0, (void *)0);
break;
}
//
// This request was not recognized so stall.
//
default:
{
USBDCDStallEP0(0);
break;
}
}
}
//*****************************************************************************
//
//! Initializes DFU device operation for a given USB controller.
//!
//! \param ui32Index is the index of the USB controller which is to be
//! initialized for DFU runtime device operation.
//! \param psDFUDevice points to a structure containing parameters customizing
//! the operation of the DFU device.
//! \param psCompEntry is the composite device entry to initialize when
//! creating a composite device.
//!
//! The \e psCompEntry should point to the composite device entry to
//! initialize. This is part of the array that is passed to the
//! USBDCompositeInit() function.
//!
//! \return Returns zero on failure or a non-zero instance value that should be
//! used with the remaining USB DFU APIs.
//
//*****************************************************************************
void *
USBDDFUCompositeInit(uint32_t ui32Index, tUSBDDFUDevice *psDFUDevice,
tCompositeEntry *psCompEntry)
{
tDFUInstance *psInst;
//
// Check parameter validity.
//
ASSERT(ui32Index == 0);
ASSERT(psDFUDevice);
ASSERT(psCompEntry != 0);
//
// Get a pointer to the DFU device instance data pointer
//
psInst = &psDFUDevice->sPrivateData;
//
// Initialize the composite entry that is used by the composite device
// class.
//
if(psCompEntry != 0)
{
psCompEntry->psDevInfo = &psInst->sDevInfo;
psCompEntry->pvInstance = (void *)psDFUDevice;
}
//
// Initialize the device information structure.
//
psInst->sDevInfo.psCallbacks = &g_sDFUHandlers;
psInst->sDevInfo.pui8DeviceDescriptor = g_pui8DFUDeviceDescriptor;
psInst->sDevInfo.ppsConfigDescriptors = g_ppsDFUConfigDescriptors;
psInst->sDevInfo.ppui8StringDescriptors = 0;
psInst->sDevInfo.ui32NumStringDescriptors = 0;
psInst->ui32USBBase = USB0_BASE;
psInst->bConnected = false;
psInst->ui8Interface = 0;
//
// Initialize the device info structure for the DFU device.
//
USBDCDDeviceInfoInit(0, &psInst->sDevInfo);
//
// Return the pointer to the instance indicating that everything went well.
//
return((void *)psDFUDevice);
}
//*****************************************************************************
//
//! Shuts down the DFU device.
//!
//! \param pvDFUInstance is the pointer to the device instance structure as
//! returned by USBDDFUCompositeInit().
//!
//! This function terminates DFU operation for the instance supplied and
//! removes the device from the USB bus.
//!
//! Following this call, the \e pvDFUInstance instance should not me used in
//! any other calls.
//!
//! \return None.
//
//*****************************************************************************
void
USBDDFUCompositeTerm(void *pvDFUInstance)
{
tDFUInstance *psInst;
ASSERT(pvDFUInstance);
//
// Get a pointer to our instance data.
//
psInst = &((tUSBDDFUDevice *)pvDFUInstance)->sPrivateData;
//
// Terminate the requested instance.
//
USBDCDTerm(0);
psInst->ui32USBBase = 0;
}
//*****************************************************************************
//
//! Removes the current USB device from the bus and transfers control to the
//! DFU boot loader.
//!
//! This function should be called from the application's main loop (i.e. not
//! in interrupt context) following a callback to the USB DFU callback function
//! notifying the application of a DETACH request from the host. The function
//! will prepare the system to switch to DFU mode and transfer control to the
//! boot loader in preparation for a firmware upgrade from the host.
//!
//! The application must ensure that it has completed all necessary shutdown
//! activities (saved any required data, etc.) before making this call since
//! the function will not return.
//!
//! \return This function does not return.
//
//*****************************************************************************
void
USBDDFUUpdateBegin(void)
{
//
// Terminate the USB device and take us off the bus.
//
USBDCDTerm(0);
//
// Disable all interrupts.
//
MAP_IntMasterDisable();
//
// We must make sure we turn off SysTick and its interrupt
// before entering the boot loader!
//
MAP_SysTickIntDisable();
MAP_SysTickDisable();
//
// Disable all processor interrupts. Instead of disabling them
// one at a time, a direct write to NVIC is done to disable all
// peripheral interrupts.
//
HWREG(NVIC_DIS0) = 0xffffffff;
HWREG(NVIC_DIS1) = 0xffffffff;
//
// Reset the USB peripheral
//
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
MAP_SysCtlPeripheralReset(SYSCTL_PERIPH_USB0);
MAP_SysCtlPeripheralDisable(SYSCTL_PERIPH_USB0);
//
// Wait for about a second.
//
MAP_SysCtlDelay(MAP_SysCtlClockGet() / 3);
//
// Re-enable interrupts at the NVIC level.
//
MAP_IntMasterEnable();
//
// Return control to the boot loader. This is a call to the SVC
// handler in the boot loader.
//
(*((void (*)(void))(*(uint32_t *)0x2c)))();
//
// Should never get here, but just in case.
//
while(1)
{
}
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbddfu-rt.h - Definitions used by runtime DFU class devices.
//
// Copyright (c) 2010-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDDFURT_H__
#define __USBDDFURT_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup dfu_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// This is the size of the g_pui8DFUInterface array in bytes.
//
//*****************************************************************************
#define DFUINTERFACE_SIZE (9)
//*****************************************************************************
//
// This is the size of the g_pui8DFUFunctionalDesc array in bytes.
//
//*****************************************************************************
#define DFUFUNCTIONALDESC_SIZE (9)
//*****************************************************************************
//
//! The size of the memory that should be allocated to create a configuration
//! descriptor for a single instance of the DFU runtime device. This does not
//! include the configuration descriptor which is automatically ignored by the
//! composite device class.
//!
//! This label is used to compute the value which will be passed to the
//! USBDCompositeInit function in the ui32Size parameter.
//
//*****************************************************************************
#define COMPOSITE_DDFU_SIZE (DFUINTERFACE_SIZE + DFUFUNCTIONALDESC_SIZE)
//*****************************************************************************
//
//! This value is passed to the client via the callback function provided in
//! the tUSBDDFUDevice structure and indicates that the host has sent a DETACH
//! request to the DFU interface. This request indicates that the device detach
//! from the USB bus and reattach in DFU mode in preparation for a firmware
//! upgrade. Currently, this is the only event that the DFU runtime class
//! reports to the client.
//!
//! When this event is received, the client should call USBDDFUUpdateBegin()
//! from a non-interrupt context at its earliest opportunity.
//
//*****************************************************************************
#define USBD_DFU_EVENT_DETACH (USBD_DFU_EVENT_BASE + 0)
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for
// DFU devices. The memory for this structure is included in the
// sPrivateData field in the tUSBDDFUDevice structure passed in the
// USBDDFUCompositeInit() function.
//
//*****************************************************************************
typedef struct
{
//
// Base address for the USB controller.
//
uint32_t ui32USBBase;
//
// The device info to interact with the lower level DCD code.
//
tDeviceInfo sDevInfo;
//
// The DFU class interface number, this is modified in composite devices.
//
uint8_t ui8Interface;
//
// The connection status of the device.
//
bool bConnected;
}
tDFUInstance;
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the DFU device. Note that, unlike all other devices, this structure does
//! not contain any fields which configure the device descriptor sent back to
//! the host. The DFU runtime device class must be used as part of a composite
//! device since all it provides is the capability to signal the device to
//! switch into DFU mode in preparation for a firmware upgrade. Creating a
//! device with nothing but DFU runtime mode capability is rather pointless
//! so this is not supported.
//
//*****************************************************************************
typedef struct
{
//
//! A pointer to the callback function which will be called to notify
//! the application of DETACH requests.
//
const tUSBCallback pfnCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the pfnCallback function.
//
void * const pvCBData;
//
//! The private instance data for this device class. This
//! memory must remain accessible for as long as the DFU device is in use
//! and must not be modified by any code outside the DFU class driver.
//
tDFUInstance sPrivateData;
}
tUSBDDFUDevice;
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDDFUCompositeInit(uint32_t ui32Index,
tUSBDDFUDevice *psDFUDevice,
tCompositeEntry *psCompEntry);
extern void USBDDFUCompositeTerm(void *pvDFUInstance);
extern void USBDDFUUpdateBegin(void);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDDFURT_H__

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//*****************************************************************************
//
// usbdevice.h - types and definitions used during USB enumeration.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDEVICE_H__
#define __USBDEVICE_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup device_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! The maximum number of independent interfaces that any single device
//! implementation can support. Independent interfaces means interface
//! descriptors with different bInterfaceNumber values - several interface
//! descriptors offering different alternative settings but the same interface
//! number count as a single interface.
//
//*****************************************************************************
#define USB_MAX_INTERFACES_PER_DEVICE 8
#include "usbdevicepriv.h"
//*****************************************************************************
//
//! This structure is passed to the USB library on a call to USBDCDInit and
//! provides the library with information about the device that the
//! application is implementing. It contains functions pointers for the
//! various USB event handlers and pointers to each of the standard device
//! descriptors.
//
//*****************************************************************************
struct tDeviceInfo
{
//
//! A pointer to a structure containing pointers to event handler functions
//! provided by the client to support the operation of this device.
//
const tCustomHandlers * psCallbacks;
//
//! A pointer to the device descriptor for this device.
//
const uint8_t *pui8DeviceDescriptor;
//
//! A pointer to an array of configuration descriptor pointers. Each entry
//! in the array corresponds to one configuration that the device may be
//! set to use by the USB host. The number of entries in the array must
//! match the bNumConfigurations value in the device descriptor
//! array, pui8DeviceDescriptor.
//
const tConfigHeader * const *ppsConfigDescriptors;
//
//! A pointer to the string descriptor array for this device. This array
//! must be arranged as follows:
//!
//! - [0] - Standard descriptor containing supported language codes.
//! - [1] - String 1 for the first language listed in descriptor 0.
//! - [2] - String 2 for the first language listed in descriptor 0.
//! - ...
//! - [n] - String n for the first language listed in descriptor 0.
//! - [n+1] - String 1 for the second language listed in descriptor 0.
//! - ...
//! - [2n] - String n for the second language listed in descriptor 0.
//! - [2n+1]- String 1 for the third language listed in descriptor 0.
//! - ...
//! - [3n] - String n for the third language listed in descriptor 0.
//!
//! and so on.
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The total number of descriptors provided in the ppStringDescriptors
//! array.
//
uint32_t ui32NumStringDescriptors;
};
//*****************************************************************************
//
//! This type is used by an application to describe and instance of a device
//! and an instance data pointer for that class. The psDevice pointer should
//! be a pointer to a valid device class to include in the composite device.
//! The pvInstance pointer should be a pointer to an instance pointer for the
//! device in the psDevice pointer.
//!
//
//*****************************************************************************
typedef struct
{
//
//! This is the top level device information structure.
//
const tDeviceInfo *psDevInfo;
//
//! This is the instance data for the device structure.
//
void *pvInstance;
//
//! A per-device workspace used by the composite device.
//
uint32_t ui32DeviceWorkspace;
}
tCompositeEntry;
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Public APIs offered by the USB library device control driver.
//
//*****************************************************************************
extern void USBDCDInit(uint32_t ui32Index, tDeviceInfo *psDevice,
void *pvDCDCBData);
extern void USBDCDTerm(uint32_t ui32Index);
extern void USBDCDStallEP0(uint32_t ui32Index);
extern void USBDCDRequestDataEP0(uint32_t ui32Index, uint8_t *pui8Data,
uint32_t ui32Size);
extern void USBDCDSendDataEP0(uint32_t ui32Index, uint8_t *pui8Data,
uint32_t ui32Size);
extern void USBDCDSetDefaultConfiguration(uint32_t ui32Index,
uint32_t ui32DefaultConfig);
extern uint32_t USBDCDConfigDescGetSize(const tConfigHeader *psConfig);
extern uint32_t USBDCDConfigDescGetNum(const tConfigHeader *psConfig,
uint32_t ui32Type);
extern tDescriptorHeader *USBDCDConfigDescGet(const tConfigHeader *psConfig,
uint32_t ui32Type,
uint32_t ui32Index,
uint32_t *pui32Section);
extern uint32_t
USBDCDConfigGetNumAlternateInterfaces(const tConfigHeader *psConfig,
uint8_t ui8InterfaceNumber);
extern tInterfaceDescriptor *
USBDCDConfigGetInterface(const tConfigHeader *psConfig,
uint32_t ui32Index, uint32_t ui32AltCfg,
uint32_t *pui32Section);
extern tEndpointDescriptor *
USBDCDConfigGetInterfaceEndpoint(const tConfigHeader *psConfig,
uint32_t ui32InterfaceNumber,
uint32_t ui32AltCfg,
uint32_t ui32Index);
extern void USBDCDPowerStatusSet(uint32_t ui32Index, uint8_t ui8Power);
extern bool USBDCDRemoteWakeupRequest(uint32_t ui32Index);
//*****************************************************************************
//
// Device mode interrupt handler for controller index 0.
//
//*****************************************************************************
extern void USB0DeviceIntHandler(void);
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBENUM_H__

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//*****************************************************************************
//
// usbdevicepriv.h - Private header file used to share internal variables and
// function prototypes between the various device-related
// modules in the USB library. This header MUST NOT be
// used by application code.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDEVICEPRIV_H__
#define __USBDEVICEPRIV_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// The states for endpoint zero during enumeration.
//
//*****************************************************************************
typedef enum
{
//
// The USB device is waiting on a request from the host controller on
// endpoint zero.
//
eUSBStateIdle,
//
// The USB device is sending data back to the host due to an IN request.
//
eUSBStateTx,
//
// The USB device is sending the configuration descriptor back to the host
// due to an IN request.
//
eUSBStateTxConfig,
//
// The USB device is receiving data from the host due to an OUT
// request from the host.
//
eUSBStateRx,
//
// The USB device has completed the IN or OUT request and is now waiting
// for the host to acknowledge the end of the IN/OUT transaction. This
// is the status phase for a USB control transaction.
//
eUSBStateStatus,
//
// This endpoint has signaled a stall condition and is waiting for the
// stall to be acknowledged by the host controller.
//
eUSBStateStall
}
tEP0State;
typedef struct tDeviceInfo tDeviceInfo;
//*****************************************************************************
//
// The USB controller device information.
//
//*****************************************************************************
typedef struct
{
//
// The current state of endpoint zero.
//
volatile tEP0State iEP0State;
//
// The devices current address, this also has a change pending bit in the
// MSB of this value specified by DEV_ADDR_PENDING.
//
volatile uint32_t ui32DevAddress;
//
// This holds the current active configuration for this device.
//
uint32_t ui32Configuration;
//
// This holds the configuration id that will take effect after a reset.
//
uint32_t ui32DefaultConfiguration;
//
// This holds the current alternate interface for this device.
//
uint8_t pui8AltSetting[USB_MAX_INTERFACES_PER_DEVICE];
//
// This is the pointer to the current data being sent out or received
// on endpoint zero.
//
uint8_t *pui8EP0Data;
//
// This is the number of bytes that remain to be sent from or received
// into the g_sUSBDeviceState.pui8EP0Data data buffer.
//
volatile uint32_t ui32EP0DataRemain;
//
// The amount of data being sent/received due to a custom request.
//
uint32_t ui32OUTDataSize;
//
// Holds the current device status.
//
uint8_t ui8Status;
//
// Holds the endpoint status for the HALT condition. This array is sized
// to hold halt status for all IN and OUT endpoints.
//
uint8_t ppui8Halt[2][USBLIB_NUM_EP - 1];
//
// Holds the configuration descriptor section number currently being sent
// to the host.
//
uint8_t ui8ConfigSection;
//
// Holds the offset within the configuration descriptor section currently
// being sent to the host.
//
uint8_t ui8SectionOffset;
//
// Holds the index of the configuration that we are currently sending back
// to the host.
//
uint8_t ui8ConfigIndex;
//
// This flag is set to true if the client has called USBDPowerStatusSet()
// and tells the USB library not to try to determine the current power
// status from the configuration descriptor.
//
bool bPwrSrcSet;
//
// This flag indicates whether or not remote wake up signaling is in
// progress.
//
bool bRemoteWakeup;
//
// During remote wake up signaling, this counter is used to track the
// number of milliseconds since the signaling was initiated.
//
uint8_t ui8RemoteWakeupCount;
//
// The DMA instance information for this USB controller.
//
tUSBDMAInstance *psDMAInstance;
//
// The interrupt number for this instance.
//
uint32_t ui32IntNum;
//
// Pointer to the device supplied call back data.
//
void *pvCBData;
}
tDCDInstance;
extern tDCDInstance g_psDCDInst[];
extern tDeviceInfo *g_ppsDevInfo[];
//*****************************************************************************
//
// Device enumeration functions provided by device/usbenum.c and called from
// the interrupt handler in device/usbhandler.c
//
//*****************************************************************************
extern bool USBDeviceConfig(tDCDInstance *psDevInst,
const tConfigHeader *psConfig);
extern bool USBDeviceConfigAlternate(tDCDInstance *psDevInst,
const tConfigHeader *psConfig,
uint8_t ui8InterfaceNum,
uint8_t ui8AlternateSetting);
extern void USBDCDDeviceInfoInit(uint32_t ui32Index, tDeviceInfo *psDevice);
//*****************************************************************************
//
// Macro access function to device information.
//
//*****************************************************************************
#define DCDGetDMAInstance(psDevInfo) (&(psDevInfo->psDCDInst->sDMAInstance))
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDEVICEPRIV_H__

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//*****************************************************************************
//
// usbhandler.c - General USB handling routines.
//
// Copyright (c) 2007-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/device/usbdevice.h"
#include "usblib/device/usbdevicepriv.h"
#include "usblib/usblibpriv.h"
//*****************************************************************************
//
//! \addtogroup device_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! The USB device interrupt handler.
//!
//! This the main USB interrupt handler entry point for use in USB device
//! applications. This top-level handler will branch the interrupt off to the
//! appropriate application or stack handlers depending on the current status
//! of the USB controller.
//!
//! Applications which operate purely as USB devices (rather than dual mode
//! applications which can operate in either device or host mode at different
//! times) must ensure that a pointer to this function is installed in the
//! interrupt vector table entry for the USB0 interrupt. For dual mode
//! operation, the vector should be set to point to \e USB0DualModeIntHandler()
//! instead.
//!
//! \return None.
//
//*****************************************************************************
void
USB0DeviceIntHandler(void)
{
uint32_t ui32Status;
//
// Get the controller interrupt status.
//
ui32Status = MAP_USBIntStatusControl(USB0_BASE);
//
// Call the internal handler.
//
USBDeviceIntHandlerInternal(0, ui32Status);
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbdhidkeyb.h - Definitions used by HID keyboard class devices.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDHIDKEYB_H__
#define __USBDHIDKEYB_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup hid_keyboard_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! The maximum number of simultaneously-pressed, non-modifier keys that the
//! HID BIOS keyboard protocol can send at once. Attempts to send more pressed
//! keys than this will result in a rollover error being reported to the host
//! and KEYB_ERR_TOO_MANY_KEYS being returned from
//! USBDHIDKeyboardKeyStateChange.
//
//*****************************************************************************
#define KEYB_MAX_CHARS_PER_REPORT \
6
//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB HID keyboard code and are here only to help with the application
// allocating the correct amount of memory for the USB HID Keyboard device
// code.
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the keyboard can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
//
// Unconfigured.
//
HID_KEYBOARD_STATE_UNCONFIGURED,
//
// No keys to send and not waiting on data.
//
HID_KEYBOARD_STATE_IDLE,
//
// Waiting on report data from the host.
//
HID_KEYBOARD_STATE_WAIT_DATA,
//
// Waiting on data to be sent out.
//
HID_KEYBOARD_STATE_SEND
}
tKeyboardState;
//*****************************************************************************
//
// PRIVATE
//
// The size of the keyboard input and output reports.
//
//*****************************************************************************
#define KEYB_IN_REPORT_SIZE 8
#define KEYB_OUT_REPORT_SIZE 1
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data structure for the USB HID
// keyboard device. This structure forms the RAM workspace used by each
// instance of the keyboard.
//
//*****************************************************************************
typedef struct
{
//
// The USB configuration number set by the host or 0 of the device is
// currently unconfigured.
//
uint8_t ui8USBConfigured;
//
// The protocol requested by the host, USB_HID_PROTOCOL_BOOT or
// USB_HID_PROTOCOL_REPORT.
//
uint8_t ui8Protocol;
//
// The current states that the keyboard LEDs are to be set to.
//
volatile uint8_t ui8LEDStates;
//
// The total number of keys currently pressed. This indicates the number
// of key press entries in the pui8KeysPressed array.
//
uint8_t ui8KeyCount;
//
// The current state of the keyboard interrupt IN endpoint.
//
volatile tKeyboardState eKeyboardState;
//
// A flag to indicate that the application pressed or released a key
// but that we couldn't send the report immediately.
//
volatile bool bChangeMade;
//
// A buffer used to receive output reports from the host.
//
uint8_t pui8DataBuffer[KEYB_OUT_REPORT_SIZE];
//
// A buffer used to hold the last input report sent to the host.
//
uint8_t pui8Report[KEYB_IN_REPORT_SIZE];
//
// A buffer containing the usage codes of all non-modifier keys currently
// in the pressed state.
//
uint8_t pui8KeysPressed[KEYB_MAX_CHARS_PER_REPORT];
//
// The idle timeout control structure for our input report. This is
// required by the lower level HID driver.
//
tHIDReportIdle sReportIdle;
//
// This is needed for the lower level HID driver.
//
tUSBDHIDDevice sHIDDevice;
}
tHIDKeyboardInstance;
//*****************************************************************************
//
//! This structure is used by the application to define operating parameters
//! for the HID keyboard device.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! The maximum power consumption of the device, expressed in milliamps.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self- or bus-powered and whether or not
//! it supports remote wakeup. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//! A pointer to the callback function which will be called to notify
//! the application of general events and those related to reception of
//! Output and Feature reports via the (optional) interrupt OUT endpoint.
//
const tUSBCallback pfnCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the keyboard callback,
//! pfnCallback.
//
void *pvCBData;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1),HID
//! Interface description string (language 1), Configuration description
//! string (language 1).
//!
//! If supporting more than 1 language, the descriptor block (except for
//! string descriptor 0) must be repeated for each language defined in the
//! language descriptor.
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be (1 + (5 * (num languages))).
//
const uint32_t ui32NumStringDescriptors;
//
//! The private instance data for this device. This memory must
//! remain accessible for as long as the keyboard device is in use and
//! must not be modified by any code outside the HID keyboard driver.
//
tHIDKeyboardInstance sPrivateData;
}
tUSBDHIDKeyboardDevice;
//*****************************************************************************
//
// Keyboard-specific device class driver events
//
//*****************************************************************************
//*****************************************************************************
//
//! This event indicates that the keyboard LED states are to be set. The
//! ui32MsgValue parameter contains the requested state for each of the LEDs
//! defined as a collection of ORed bits where a 1 indicates that the LED is
//! to be turned on and a 0 indicates that it should be turned off. The
//! individual LED bits are defined using labels HID_KEYB_NUM_LOCK,
//! HID_KEYB_CAPS_LOCK, HID_KEYB_SCROLL_LOCK, HID_KEYB_COMPOSE and
//! HID_KEYB_KANA.
//
//*****************************************************************************
#define USBD_HID_KEYB_EVENT_SET_LEDS \
USBD_HID_KEYB_EVENT_BASE
//*****************************************************************************
//
//! This return code from USBDHIDKeyboardKeyStateChange indicates success.
//
//*****************************************************************************
#define KEYB_SUCCESS 0
//*****************************************************************************
//
//! This return code from USBDHIDKeyboardKeyStateChange indicates that an
//! attempt has been made to record more than 6 simultaneously pressed,
//! non-modifier keys. The USB HID BIOS keyboard protocol allows no more than
//! 6 pressed keys to be reported at one time. Until at least one key is
//! released, the device will report a roll over error to the host each time it
//! is asked for the keyboard input report.
//
//*****************************************************************************
#define KEYB_ERR_TOO_MANY_KEYS 1
//*****************************************************************************
//
//! This return code from USBDHIDKeyboardKeyStateChange indicates that an
//! error was reported while attempting to send a report to the host. A client
//! should assume that the host has disconnected if this return code is seen.
//
//*****************************************************************************
#define KEYB_ERR_TX_ERROR 2
//*****************************************************************************
//
//! USBDHIDKeyboardKeyStateChange returns this value if it is called with the
//! bPress parameter set to false but with a ui8UsageCode parameter which does
//! does not indicate a key that is currently recorded as being pressed. This
//! may occur if an attempt was previously made to report more than 6 pressed
//! keys and the earlier pressed keys are released before the later ones. This
//! condition is benign and should not be used to indicate a host disconnection
//! or serious error.
//
//*****************************************************************************
#define KEYB_ERR_NOT_FOUND 3
//*****************************************************************************
//
//! USBDHIDKeyboardKeyStateChange returns this value if it is called before the
//! USB host has connected and configured the device. Any key usage code
//! passed will be stored and passed to the host once configuration completes.
//
//*****************************************************************************
#define KEYB_ERR_NOT_CONFIGURED 4
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDHIDKeyboardInit(uint32_t ui32Index,
tUSBDHIDKeyboardDevice *psHIDKbDevice);
extern void *USBDHIDKeyboardCompositeInit(uint32_t ui32Index,
tUSBDHIDKeyboardDevice *psHIDKbDevice,
tCompositeEntry *psCompEntry);
extern void USBDHIDKeyboardTerm(void *pvKeyboardInstance);
extern void *USBDHIDKeyboardSetCBData(void *pvKeyboardInstance,
void *pvCBData);
extern uint32_t USBDHIDKeyboardKeyStateChange(void *pvKeyboardInstance,
uint8_t ui8Modifiers,
uint8_t ui8UsageCode,
bool bPressed);
extern void USBDHIDKeyboardPowerStatusSet(void *pvKeyboardInstance,
uint8_t ui8Power);
extern bool USBDHIDKeyboardRemoteWakeupRequest(void *pvKeyboardInstance);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDHIDKEYB_H__

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//*****************************************************************************
//
// usbdhidmouse.h - Public header file for the USB HID Mouse device class
// driver
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDHIDMOUSE_H__
#define __USBDHIDMOUSE_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup hid_mouse_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// The first few sections of this header are private defines that are used by
// the USB HID mouse code and are here only to help with the application
// allocating the correct amount of memory for the HID mouse device code.
//
//*****************************************************************************
//*****************************************************************************
//
// PRIVATE
//
// The size of the mouse input report sent to the host.
//
//*****************************************************************************
#define MOUSE_REPORT_SIZE 3
//*****************************************************************************
//
// PRIVATE
//
// This enumeration holds the various states that the mouse can be in during
// normal operation.
//
//*****************************************************************************
typedef enum
{
//
// Unconfigured.
//
eHIDMouseStateUnconfigured,
//
// No keys to send and not waiting on data.
//
eHIDMouseStateIdle,
//
// Waiting on report data from the host.
//
eHIDMouseStateWaitData,
//
// Waiting on data to be sent out.
//
eHIDMouseStateSend
}
tMouseState;
//*****************************************************************************
//
// PRIVATE
//
// This structure provides the private instance data structure for the USB
// HID Mouse device. This structure forms the RAM workspace used by each
// instance of the mouse.
//
//*****************************************************************************
typedef struct
{
//
// The USB configuration number set by the host or 0 of the device is
// currently unconfigured.
//
uint8_t ui8USBConfigured;
//
// The protocol requested by the host, USB_HID_PROTOCOL_BOOT or
// USB_HID_PROTOCOL_REPORT.
//
uint8_t ui8Protocol;
//
// A buffer used to hold the last input report sent to the host.
//
uint8_t pui8Report[MOUSE_REPORT_SIZE];
//
// The current state of the mouse interrupt IN endpoint.
//
volatile tMouseState iMouseState;
//
// The idle timeout control structure for our input report. This is
// required by the lower level HID driver.
//
tHIDReportIdle sReportIdle;
//
// This is needed for the lower level HID driver.
//
tUSBDHIDDevice sHIDDevice;
}
tHIDMouseInstance;
//*****************************************************************************
//
//! This structure is used by the application to define operating parameters
//! for the HID mouse device.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! The maximum power consumption of the device, expressed in milliamps.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self- or bus-powered and whether or not
//! it supports remote wakeup. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the callback function which will be called to notify
//! the application of events relating to the operation of the mouse.
//
const tUSBCallback pfnCallback;
//
//! A client-supplied pointer which will be sent as the first
//! parameter in all calls made to the mouse callback, pfnCallback.
//
void *pvCBData;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1),HID
//! Interface description string (language 1), Configuration description
//! string (language 1).
//!
//! If supporting more than 1 language, the descriptor block (except for
//! string descriptor 0) must be repeated for each language defined in the
//! language descriptor.
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be (1 + (5 * (num languages))).
//
const uint32_t ui32NumStringDescriptors;
//
//! The private instance data for this device. This memory must
//! remain accessible for as long as the mouse device is in use and must
//! not be modified by any code outside the HID mouse driver.
//
tHIDMouseInstance sPrivateData;
}
tUSBDHIDMouseDevice;
//*****************************************************************************
//
//! This return code from USBDHIDMouseStateChange indicates success.
//
//*****************************************************************************
#define MOUSE_SUCCESS 0
//*****************************************************************************
//
//! This return code from USBDHIDMouseStateChange indicates that an error was
//! reported while attempting to send a report to the host. A client should
//! assume that the host has disconnected if this return code is seen.
//
//*****************************************************************************
#define MOUSE_ERR_TX_ERROR 2
//*****************************************************************************
//
//! USBDHIDMouseStateChange returns this value if it is called before the
//! USB host has connected and configured the device. All mouse state
//! information passed on the call will have been ignored.
//
//*****************************************************************************
#define MOUSE_ERR_NOT_CONFIGURED \
4
//*****************************************************************************
//
//! Setting this bit in the ui8Buttons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 1 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_1 0x01
//*****************************************************************************
//
//! Setting this bit in the ui8Buttons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 2 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_2 0x02
//*****************************************************************************
//
//! Setting this bit in the ui8Buttons parameter to USBDHIDMouseStateChange
//! indicates to the USB host that button 3 on the mouse is pressed.
//
//*****************************************************************************
#define MOUSE_REPORT_BUTTON_3 0x04
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDHIDMouseInit(uint32_t ui32Index,
tUSBDHIDMouseDevice *psMouseDevice);
extern void *USBDHIDMouseCompositeInit(uint32_t ui32Index,
tUSBDHIDMouseDevice *psMouseDevice,
tCompositeEntry *psCompEntry);
extern void USBDHIDMouseTerm(void *pvMouseDevice);
extern void *USBDHIDMouseSetCBData(void *pvMouseDevice, void *pvCBData);
extern uint32_t USBDHIDMouseStateChange(void *pvMouseDevice, int8_t i8DeltaX,
int8_t i8DeltaY, uint8_t ui8Buttons);
extern void USBDHIDMousePowerStatusSet(void *pvMouseDevice,
uint8_t ui8Power);
extern bool USBDHIDMouseRemoteWakeupRequest(void *pvMouseDevice);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBDHIDMOUSE_H__

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//*****************************************************************************
//
// usbdmsc.h - USB mass storage device class driver.
//
// Copyright (c) 2009-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDMSC_H__
#define __USBDMSC_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup msc_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! Media Access functions.
//
//*****************************************************************************
typedef struct
{
//
//! This function is used to initialize and open the physical drive number
//! associated with the parameter ui32Drive. The function will return zero
//! if the drive could not be opened for some reason. In the case of
//! removable device like an SD card this function should return zero if
//! the SD card is not present.
//! The function returns a pointer to data that should be passed to other
//! APIs or it will return 0 if no drive was found.
//
void *(*pfnOpen)(uint32_t ui32Drive);
//*************************************************************************
//
// This function close the drive number in use by the mass storage class
// device.
//
// /param pvDrive is the pointer that was returned from a call to
// USBDMSCStorageOpen().
//
// This function is used to close the physical drive number associated with
// the parameter \e pvDrive. This function will return 0 if the drive was
// closed successfully and any other value will indicate a failure.
//
// /return Returns 0 if the drive was successfully closed or non-zero for a
// failure.
//
//*************************************************************************
void (*pfnClose)(void *pvDrive);
//*************************************************************************
//
// This function will read a block from a device opened by the
// USBDMSCStorageOpen() call.
//
// /param pvDrive is the pointer that was returned from a call to
// USBDMSCStorageOpen().
// /param pui8Data is the buffer that data will be written into.
// /param ui32Sector is the block address to read.
// /param ui32NumBlocks is the number of blocks to read.
//
// This function is use to read blocks from a physical device and return
// them in the \e pui8Data buffer. The data area pointed to by \e pui8Data
// should be at least \e ui32NumBlocks * Block Size bytes to prevent
// overwriting data.
//
// /return Returns the number of bytes that were read from the device.
//
//*************************************************************************
uint32_t (*pfnBlockRead)(void *pvDrive, uint8_t *pui8Data,
uint32_t ui32Sector, uint32_t ui32NumBlocks);
//*************************************************************************
//
// This function will write a block to a device opened by the
// USBDMSCStorageOpen() call.
//
// /param pvDrive is the pointer that was returned from a call to
// USBDMSCStorageOpen().
// /param pui8Data is the buffer that data will be used for writing.
// /param ui32NumBlocks is the number of blocks to write.
//
// This function is use to write blocks to a physical device from the
// buffer pointed to by the \e pui8Data buffer. If the number of blocks is
// greater than one then the block address will increment and write to the
// next block until \e ui32NumBlocks * Block Size bytes have been written.
//
// /return Returns the number of bytes that were written to the device.
//
//*************************************************************************
uint32_t (*pfnBlockWrite)(void *pvDrive, uint8_t *pui8Data,
uint32_t ui32Sector, uint32_t ui32NumBlocks);
//*************************************************************************
//
// This function will return the number of blocks present on a device.
//
// /param pvDrive is the pointer that was returned from a call to
// USBDMSCStorageOpen().
//
// This function is used to return the total number of blocks on a physical
// device based on the \e pvDrive parameter.
//
// /return Returns the number of blocks that are present in a device.
//
//*************************************************************************
uint32_t (*pfnNumBlocks)(void *pvDrive);
}
tMSCDMedia;
//*****************************************************************************
//
// These defines control the sizes of USB transfers for data and commands.
//
//*****************************************************************************
#define DEVICE_BLOCK_SIZE 512
//*****************************************************************************
//
// USBDMSCMediaChange() tUSBDMSCMediaStatus values.
//
//*****************************************************************************
typedef enum
{
eUSBDMSCMediaPresent,
eUSBDMSCMediaNotPresent,
eUSBDMSCMediaUnknown
}
tUSBDMSCMediaStatus;
//*****************************************************************************
//
// PRIVATE
//
// This structure defines the private instance data and state variables for the
// mass storage class. The memory for this structure is in the the
// sPrivateData field in the tUSBDMSCDevice structure passed on
// USBDMSCInit() and should not be modified by any code outside of the mass
// storage device code.
//
//*****************************************************************************
typedef struct
{
//
// Base address for the USB controller.
//
uint32_t ui32USBBase;
//
// The device info to interact with the lower level DCD code.
//
tDeviceInfo sDevInfo;
//
// These three values are used to return the current sense data for an
// instance of the mass storage class.
//
uint8_t ui8ErrorCode;
uint8_t ui8SenseKey;
uint16_t ui16AddSenseCode;
//
// The pointer to the instance returned from the Open call to the media.
//
void *pvMedia;
//
// The connection status of the device.
//
volatile bool bConnected;
//
// Holds the flag settings for this instance.
//
uint32_t ui32Flags;
//
// Holds the current media status.
//
tUSBDMSCMediaStatus iMediaStatus;
//
// MSC block buffer.
//
uint32_t pui32Buffer[DEVICE_BLOCK_SIZE>>2];
//
// Current number of bytes to transfer.
//
uint32_t ui32BytesToTransfer;
//
// The LBA for the current transfer.
//
uint32_t ui32CurrentLBA;
//
// The IN endpoint number, this is modified in composite devices.
//
uint8_t ui8INEndpoint;
//
// The IN DMA channel.
//
uint8_t ui8INDMA;
//
// The OUT endpoint number, this is modified in composite devices.
//
uint8_t ui8OUTEndpoint;
//
// The OUT DMA channel.
//
uint8_t ui8OUTDMA;
//
// The bulk class interface number, this is modified in composite devices.
//
uint8_t ui8Interface;
//
// Active SCSI state.
//
uint8_t ui8SCSIState;
//
// A copy of the DMA instance data used with calls to USBLibDMA functions.
//
tUSBDMAInstance *psDMAInstance;
}
tMSCInstance;
//*****************************************************************************
//
// This is the size of the g_pui8MSCInterface array in bytes.
//
//*****************************************************************************
#define MSCINTERFACE_SIZE (23)
//*****************************************************************************
//
//! The size of the memory that should be allocated to create a configuration
//! descriptor for a single instance of the USB Audio Device.
//! This does not include the configuration descriptor which is automatically
//! ignored by the composite device class.
//
//
//*****************************************************************************
#define COMPOSITE_DMSC_SIZE (MSCINTERFACE_SIZE)
//*****************************************************************************
//
//! The structure used by the application to define operating parameters for
//! the mass storage device.
//
//*****************************************************************************
typedef struct
{
//
//! The vendor ID that this device is to present in the device descriptor.
//
const uint16_t ui16VID;
//
//! The product ID that this device is to present in the device descriptor.
//
const uint16_t ui16PID;
//
//! 8 byte vendor string.
//
const uint8_t pui8Vendor[8];
//
//! 16 byte vendor string.
//
const uint8_t pui8Product[16];
//
//! 4 byte vendor string.
//
const uint8_t pui8Version[4];
//
//! The maximum power consumption of the device, expressed in milliamps.
//
const uint16_t ui16MaxPowermA;
//
//! Indicates whether the device is self or bus-powered and whether or not
//! it supports remote wakeup. Valid values are USB_CONF_ATTR_SELF_PWR or
//! USB_CONF_ATTR_BUS_PWR, optionally ORed with USB_CONF_ATTR_RWAKE.
//
const uint8_t ui8PwrAttributes;
//
//! A pointer to the string descriptor array for this device. This array
//! must contain the following string descriptor pointers in this order.
//! Language descriptor, Manufacturer name string (language 1), Product
//! name string (language 1), Serial number string (language 1), MSC
//! Interface description string (language 1), Configuration description
//! string (language 1).
//!
//! If supporting more than 1 language, the descriptor block (except for
//! string descriptor 0) must be repeated for each language defined in the
//! language descriptor.
//!
//
const uint8_t * const *ppui8StringDescriptors;
//
//! The number of descriptors provided in the ppStringDescriptors
//! array. This must be 1 + ((5 + (num HID strings)) * (num languages)).
//
const uint32_t ui32NumStringDescriptors;
//
//! This structure holds the access functions for the media used by this
//! instance of the mass storage class device. All of the functions in
//! this structure are required to be filled out with valid functions.
//
const tMSCDMedia sMediaFunctions;
//
//! This is the callback function for various events that occur during
//! mass storage class operation.
//
const tUSBCallback pfnEventCallback;
//
//! The private instance data for this device. This memory
//! must remain accessible for as long as the MSC device is in use and
//! must not be modified by any code outside the MSC class driver.
//
tMSCInstance sPrivateData;
}
tUSBDMSCDevice;
//*****************************************************************************
//
// MSC-specific device class driver events
//
//*****************************************************************************
//*****************************************************************************
//
//! This event indicates that the host has completed other operations and is
//! no longer accessing the device.
//
//*****************************************************************************
#define USBD_MSC_EVENT_IDLE (USBD_MSC_EVENT_BASE + 0)
//*****************************************************************************
//
//! This event indicates that the host is reading the storage media.
//
//*****************************************************************************
#define USBD_MSC_EVENT_READING (USBD_MSC_EVENT_BASE + 1)
//*****************************************************************************
//
//! This event indicates that the host is writing to the storage media.
//
//*****************************************************************************
#define USBD_MSC_EVENT_WRITING (USBD_MSC_EVENT_BASE + 2)
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern void *USBDMSCInit(uint32_t ui32Index,
tUSBDMSCDevice *psMSCDevice);
extern void *USBDMSCCompositeInit(uint32_t ui32Index,
tUSBDMSCDevice *psMSCDevice,
tCompositeEntry *psCompEntry);
extern void USBDMSCTerm(void *pvInstance);
extern void USBDMSCMediaChange(void *pvInstance,
tUSBDMSCMediaStatus eMediaStatus);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbhaudio.h - USB host audio class driver.
//
// Copyright (c) 2010-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHAUDIO_H__
#define __USBHAUDIO_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// USB host audio specific events
//
//*****************************************************************************
//*****************************************************************************
//
//! This USB host audio event indicates that the device is connected and
//! ready to send or receive buffers. The \e pvBuffer and \e ui32Param
//! values are not used in this event.
//
//*****************************************************************************
#define USBH_AUDIO_EVENT_OPEN (USBH_AUDIO_EVENT_BASE + 0)
//*****************************************************************************
//
//! This USB host audio event indicates that the previously connected device
//! has been disconnected. The \e pvBuffer and \e ui32Param values are not used
//! in this event.
//
//*****************************************************************************
#define USBH_AUDIO_EVENT_CLOSE (USBH_AUDIO_EVENT_BASE + 1)
//*****************************************************************************
//
// This definition is used with the USBHostAudioFormatGet() and
// USBHostAudioFormatSet() API's to determine if the audio input is being
// accesses(USBH_AUDIO_FORMAT_IN set) or audio output(USBH_AUDIO_FORMAT clear).
//
//*****************************************************************************
#define USBH_AUDIO_FORMAT_IN 0x00000001
#define USBH_AUDIO_FORMAT_OUT 0x00000000
typedef struct
{
uint8_t ui8Channels;
uint8_t ui8Bits;
uint32_t ui32SampleRate;
}
tUSBAudioFormat;
typedef struct tUSBHostAudioInstance tUSBHostAudioInstance;
//*****************************************************************************
//
// The prototype for the host USB Audio driver callback function.
//
//*****************************************************************************
typedef void (*tUSBHostAudioCallback)(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Event,
uint32_t ui32MsgParam,
void *pvMsgData);
//*****************************************************************************
//
// API Function Prototypes
//
//*****************************************************************************
extern tUSBHostAudioInstance * USBHostAudioOpen(uint32_t ui32Index,
tUSBHostAudioCallback pfnCallback);
extern void USBHostAudioClose(tUSBHostAudioInstance *psAudioInstance);
extern int32_t USBHostAudioPlay(tUSBHostAudioInstance *psAudioInstance,
void *pvBuffer, uint32_t ui32Size,
tUSBHostAudioCallback pfnCallback);
extern uint32_t USBHostAudioFormatGet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32SampleRate,
uint32_t ui32Bits, uint32_t ui32Channels,
uint32_t ui32Flags);
extern uint32_t USBHostAudioFormatSet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32SampleRate,
uint32_t ui32Bits, uint32_t ui32Channels,
uint32_t ui32Flags);
extern int32_t USBHostAudioRecord(tUSBHostAudioInstance *psAudioInstance,
void *pvBuffer, uint32_t ui32Size,
tUSBHostAudioCallback pfnAudioCallback);
extern uint32_t USBHostAudioVolumeGet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Interface,
uint32_t ui32Channel);
extern void USBHostAudioVolumeSet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Interface, uint32_t ui32Channel,
uint32_t ui32Value);
extern uint32_t USBHostAudioVolumeMaxGet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Interface,
uint32_t ui32Channel);
extern uint32_t USBHostAudioVolumeMinGet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Interface,
uint32_t ui32Channel);
extern uint32_t USBHostAudioVolumeResGet(tUSBHostAudioInstance *psAudioInstance,
uint32_t ui32Interface,
uint32_t ui32Channel);
//*****************************************************************************
//
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbhhid.c - This file contains the host HID driver.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/usbhid.h"
#include "usblib/host/usbhost.h"
#include "usblib/host/usbhostpriv.h"
#include "usblib/host/usbhhid.h"
static void * HIDDriverOpen(tUSBHostDevice *psDevice);
static void HIDDriverClose(void *pvInstance);
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// If the user has not explicitly stated the maximum number of HID devices to
// support, we assume that we need to support up to the maximum number of USB
// devices that the build is configured for.
//
//*****************************************************************************
#ifndef MAX_HID_DEVICES
#define MAX_HID_DEVICES MAX_USB_DEVICES
#endif
//*****************************************************************************
//
// This is the structure that holds all of the data for a given instance of
// a HID device.
//
//*****************************************************************************
struct tHIDInstance
{
//
// Save the device instance.
//
tUSBHostDevice *psDevice;
//
// Used to save the callback.
//
tUSBCallback pfnCallback;
//
// Callback data provided by caller.
//
void *pvCBData;
//
// Used to remember what type of device was registered.
//
tHIDSubClassProtocol iDeviceType;
//
// Interrupt IN pipe.
//
uint32_t ui32IntInPipe;
};
//*****************************************************************************
//
// The instance data storage for attached hid devices.
//
//*****************************************************************************
static tHIDInstance g_psHIDDevice[MAX_HID_DEVICES];
//*****************************************************************************
//
//! This constant global structure defines the HID Class Driver that is
//! provided with the USB library.
//
//*****************************************************************************
const tUSBHostClassDriver g_sUSBHIDClassDriver =
{
USB_CLASS_HID,
HIDDriverOpen,
HIDDriverClose,
0
};
//*****************************************************************************
//
//! This function is used to open an instance of a HID device.
//!
//! \param iDeviceType is the type of device that should be loaded for this
//! instance of the HID device.
//! \param pfnCallback is the function that will be called whenever changes
//! are detected for this device.
//! \param pvCBData is the data that will be returned in when the
//! \e pfnCallback function is called.
//!
//! This function creates an instance of an specific type of HID device. The
//! \e iDeviceType parameter is one subclass/protocol values of the types
//! specified in enumerated types tHIDSubClassProtocol. Only devices that
//! enumerate with this type will be called back via the \e pfnCallback
//! function. The \e pfnCallback parameter is the callback function for any
//! events that occur for this device type. The \e pfnCallback function must
//! point to a valid function of type \e tUSBCallback for this call to complete
//! successfully. To release this device instance the caller of USBHHIDOpen()
//! should call USBHHIDClose() and pass in the value returned from the
//! USBHHIDOpen() call.
//!
//! \return This function returns and instance value that should be used with
//! any other APIs that require an instance value. If a value of 0 is returned
//! then the device instance could not be created.
//
//*****************************************************************************
tHIDInstance *
USBHHIDOpen(tHIDSubClassProtocol iDeviceType, tUSBCallback pfnCallback,
void *pvCBData)
{
uint32_t ui32Loop;
//
// Find a free device instance structure.
//
for(ui32Loop = 0; ui32Loop < MAX_HID_DEVICES; ui32Loop++)
{
if(g_psHIDDevice[ui32Loop].iDeviceType == eUSBHHIDClassNone)
{
//
// Save the instance data for this device.
//
g_psHIDDevice[ui32Loop].pfnCallback = pfnCallback;
g_psHIDDevice[ui32Loop].iDeviceType = iDeviceType;
g_psHIDDevice[ui32Loop].pvCBData = pvCBData;
//
// Return the device instance pointer.
//
return(&g_psHIDDevice[ui32Loop]);
}
}
//
// If we get here, there are no space device slots so return NULL to
// indicate a problem.
//
return(0);
}
//*****************************************************************************
//
//! This function is used to release an instance of a HID device.
//!
//! \param psHIDInstance is the instance value for a HID device to release.
//!
//! This function releases an instance of a HID device that was created by a
//! call to USBHHIDOpen(). This call is required to allow other HID devices
//! to be enumerated after another HID device has been disconnected. The
//! \e psHIDInstance parameter should hold the value that was returned from
//! the previous call to USBHHIDOpen().
//!
//! \return None.
//
//*****************************************************************************
void
USBHHIDClose(tHIDInstance *psHIDInstance)
{
//
// Disable any more notifications from the HID layer.
//
psHIDInstance->pfnCallback = 0;
//
// Mark this device slot as free.
//
psHIDInstance->iDeviceType = eUSBHHIDClassNone;
}
//*****************************************************************************
//
// This function handles callbacks for the interrupt IN endpoint.
//
//*****************************************************************************
static void
HIDIntINCallback(uint32_t ui32Pipe, uint32_t ui32Event)
{
int32_t i32Dev;
switch (ui32Event)
{
//
// Handles a request to schedule a new request on the interrupt IN
// pipe.
//
case USB_EVENT_SCHEDULER:
{
USBHCDPipeSchedule(ui32Pipe, 0, 1);
break;
}
//
// Called when new data is available on the interrupt IN pipe.
//
case USB_EVENT_RX_AVAILABLE:
{
//
// Determine which device this notification is intended for.
//
for(i32Dev = 0; i32Dev < MAX_HID_DEVICES; i32Dev++)
{
//
// Does this device own the pipe we have been passed?
//
if(g_psHIDDevice[i32Dev].ui32IntInPipe == ui32Pipe)
{
//
// Yes - send the report data to the USB host HID device
// class driver.
//
g_psHIDDevice[i32Dev].pfnCallback(
g_psHIDDevice[i32Dev].pvCBData,
USB_EVENT_RX_AVAILABLE, ui32Pipe, 0);
}
}
break;
}
}
}
//*****************************************************************************
//
//! This function is used to open an instance of the HID driver.
//!
//! \param psDevice is a pointer to the device information structure.
//!
//! This function will attempt to open an instance of the HID driver based on
//! the information contained in the psDevice structure. This call can fail if
//! there are not sufficient resources to open the device. The function will
//! return a value that should be passed back into USBHIDClose() when the
//! driver is no longer needed.
//!
//! \return The function will return a pointer to a HID driver instance.
//
//*****************************************************************************
static void *
HIDDriverOpen(tUSBHostDevice *psDevice)
{
int32_t i32Idx, i32Dev;
tEndpointDescriptor *psEndpointDescriptor;
tInterfaceDescriptor *psInterface;
//
// Get the interface descriptor.
//
psInterface = USBDescGetInterface(psDevice->psConfigDescriptor, 0, 0);
//
// Search the currently open instances for one that supports the protocol
// of this device.
//
for(i32Dev = 0; i32Dev < MAX_HID_DEVICES; i32Dev++)
{
if(g_psHIDDevice[i32Dev].iDeviceType ==
psInterface->bInterfaceProtocol)
{
//
// Save the device pointer.
//
g_psHIDDevice[i32Dev].psDevice = psDevice;
for(i32Idx = 0; i32Idx < 3; i32Idx++)
{
//
// Get the first endpoint descriptor.
//
psEndpointDescriptor = USBDescGetInterfaceEndpoint(psInterface,
i32Idx,
256);
//
// If no more endpoints then break out.
//
if(psEndpointDescriptor == 0)
{
break;
}
//
// Interrupt
//
if((psEndpointDescriptor->bmAttributes & USB_EP_ATTR_TYPE_M) ==
USB_EP_ATTR_INT)
{
//
// Interrupt IN.
//
if(psEndpointDescriptor->bEndpointAddress & USB_EP_DESC_IN)
{
g_psHIDDevice[i32Dev].ui32IntInPipe =
USBHCDPipeAlloc(0, USBHCD_PIPE_INTR_IN,
psDevice, HIDIntINCallback);
USBHCDPipeConfig(g_psHIDDevice[i32Dev].ui32IntInPipe,
psEndpointDescriptor->wMaxPacketSize,
psEndpointDescriptor->bInterval,
(psEndpointDescriptor->bEndpointAddress &
USB_EP_DESC_NUM_M));
}
}
}
//
// If there is a callback function call it to inform the application that
// the device has been enumerated.
//
if(g_psHIDDevice[i32Dev].pfnCallback != 0)
{
g_psHIDDevice[i32Dev].pfnCallback(
g_psHIDDevice[i32Dev].pvCBData,
USB_EVENT_CONNECTED,
(uint32_t)&g_psHIDDevice[i32Dev], 0);
}
//
// Save the device pointer.
//
g_psHIDDevice[i32Dev].psDevice = psDevice;
return (&g_psHIDDevice[i32Dev]);
}
}
//
// If we get here, no user has registered an interest in this particular
// HID device so we return an error.
//
return(0);
}
//*****************************************************************************
//
//! This function is used to release an instance of the HID driver.
//!
//! \param pvInstance is an instance pointer that needs to be released.
//!
//! This function will free up any resources in use by the HID driver instance
//! that is passed in. The \e pvInstance pointer should be a valid value that
//! was returned from a call to USBHIDOpen().
//!
//! \return None.
//
//*****************************************************************************
static void
HIDDriverClose(void *pvInstance)
{
tHIDInstance *psInst;
//
// Get our instance pointer.
//
psInst = (tHIDInstance *)pvInstance;
//
// Reset the device pointer.
//
psInst->psDevice = 0;
//
// Free the Interrupt IN pipe.
//
if(psInst->ui32IntInPipe != 0)
{
USBHCDPipeFree(psInst->ui32IntInPipe);
}
//
// If the callback exists, call it with a DISCONNECTED event.
//
if(psInst->pfnCallback != 0)
{
psInst->pfnCallback(psInst->pvCBData, USB_EVENT_DISCONNECTED,
(uint32_t)pvInstance, 0);
}
}
//*****************************************************************************
//
//! This function is used to set the idle timeout for a HID device.
//!
//! \param psHIDInstance is the value that was returned from the call to
//! USBHHIDOpen().
//! \param ui8Duration is the duration of the timeout in milliseconds.
//! \param ui8ReportID is the report identifier to set the timeout on.
//!
//! This function will send the Set Idle command to a HID device to set the
//! idle timeout for a given report. The length of the timeout is specified
//! by the \e ui8Duration parameter and the report the timeout for is in the
//! \e ui8ReportID value.
//!
//! \return Always returns 0.
//
//*****************************************************************************
uint32_t
USBHHIDSetIdle(tHIDInstance *psHIDInstance, uint8_t ui8Duration,
uint8_t ui8ReportID)
{
tUSBRequest sSetupPacket;
//
// This is a Class specific interface OUT request.
//
sSetupPacket.bmRequestType = USB_RTYPE_DIR_OUT | USB_RTYPE_CLASS |
USB_RTYPE_INTERFACE;
//
// Request a Device Descriptor.
//
sSetupPacket.bRequest = USBREQ_SET_IDLE;
sSetupPacket.wValue = (ui8Duration << 8) | ui8ReportID;
//
// Set this on interface 1.
//
sSetupPacket.wIndex = 0;
//
// This is always 0 for this request.
//
sSetupPacket.wLength = 0;
//
// Put the setup packet in the buffer.
//
return(USBHCDControlTransfer(0, &sSetupPacket, psHIDInstance->psDevice,
0, 0, MAX_PACKET_SIZE_EP0));
}
//*****************************************************************************
//
//! This function can be used to retrieve the report descriptor for a given
//! device instance.
//!
//! \param psHIDInstance is the value that was returned from the call to
//! USBHHIDOpen().
//! \param pui8Buffer is the memory buffer to use to store the report
//! descriptor.
//! \param ui32Size is the size in bytes of the buffer pointed to by
//! \e pui8Buffer.
//!
//! This function is used to return a report descriptor from a HID device
//! instance so that it can determine how to interpret reports that are
//! returned from the device indicated by the \e psHIDInstance parameter.
//! This call is blocking and will return the number of bytes read into the
//! \e pui8Buffer.
//!
//! \return Returns the number of bytes read into the \e pui8Buffer.
//
//*****************************************************************************
uint32_t
USBHHIDGetReportDescriptor(tHIDInstance *psHIDInstance, uint8_t *pui8Buffer,
uint32_t ui32Size)
{
tUSBRequest sSetupPacket;
uint32_t ui32Bytes;
//
// This is a Standard Device IN request.
//
sSetupPacket.bmRequestType = USB_RTYPE_DIR_IN | USB_RTYPE_STANDARD |
USB_RTYPE_INTERFACE;
//
// Request a Report Descriptor.
//
sSetupPacket.bRequest = USBREQ_GET_DESCRIPTOR;
sSetupPacket.wValue = USB_HID_DTYPE_REPORT << 8;
//
// Index is always 0 for device requests.
//
sSetupPacket.wIndex = 0;
//
// All devices must have at least an 8 byte max packet size so just ask
// for 8 bytes to start with.
//
sSetupPacket.wLength = ui32Size;
//
// Now get the full descriptor now that the actual maximum packet size
// is known.
//
ui32Bytes = USBHCDControlTransfer(0, &sSetupPacket,
psHIDInstance->psDevice, pui8Buffer, ui32Size,
psHIDInstance->psDevice->sDeviceDescriptor.bMaxPacketSize0);
return(ui32Bytes);
}
//*****************************************************************************
//
//! This function is used to set or clear the boot protocol state of a device.
//!
//! \param psHIDInstance is the value that was returned from the call to
//! USBHHIDOpen().
//! \param ui32BootProtocol is either zero or non-zero to indicate which
//! protocol to use for the device.
//!
//! A USB host device can use this function to set the protocol for a connected
//! HID device. This is commonly used to set keyboards and mice into their
//! simplified boot protocol modes to fix the report structure to a know
//! state.
//!
//! \return This function returns 0.
//
//*****************************************************************************
uint32_t
USBHHIDSetProtocol(tHIDInstance *psHIDInstance, uint32_t ui32BootProtocol)
{
tUSBRequest sSetupPacket;
//
// This is a Standard Device IN request.
//
sSetupPacket.bmRequestType = USB_RTYPE_DIR_OUT | USB_RTYPE_CLASS |
USB_RTYPE_INTERFACE;
//
// Request a Report Descriptor.
//
sSetupPacket.bRequest = USBREQ_SET_PROTOCOL;
if(ui32BootProtocol)
{
//
// Boot Protocol.
//
sSetupPacket.wValue = 0;
}
else
{
//
// Report Protocol.
//
sSetupPacket.wValue = 1;
}
//
// Index is always 0 for device requests.
//
sSetupPacket.wIndex = 0;
//
// Always 0.
//
sSetupPacket.wLength = 0;
//
// Now get the full descriptor now that the actual maximum packet size
// is known.
//
USBHCDControlTransfer(0, &sSetupPacket, psHIDInstance->psDevice, 0, 0,
psHIDInstance->psDevice->sDeviceDescriptor.bMaxPacketSize0);
return(0);
}
//*****************************************************************************
//
//! This function is used to retrieve a report from a HID device.
//!
//! \param psHIDInstance is the value that was returned from the call to
//! USBHHIDOpen().
//! \param ui32Interface is the interface to retrieve the report from.
//! \param pui8Data is the memory buffer to use to store the report.
//! \param ui32Size is the size in bytes of the buffer pointed to by
//! \e pui8Buffer.
//!
//! This function is used to retrieve a report from a USB pipe. It is usually
//! called when the USB HID layer has detected a new data available in a USB
//! pipe. The USB HID host device code will receive a
//! \b USB_EVENT_RX_AVAILABLE event when data is available, allowing the
//! callback function to retrieve the data.
//!
//! \return Returns the number of bytes read from report.
//
//*****************************************************************************
uint32_t
USBHHIDGetReport(tHIDInstance *psHIDInstance, uint32_t ui32Interface,
uint8_t *pui8Data, uint32_t ui32Size)
{
//
// Read the Data out.
//
ui32Size = USBHCDPipeReadNonBlocking(psHIDInstance->ui32IntInPipe,
pui8Data, ui32Size);
//
// Return the number of bytes read from the interrupt in pipe.
//
return(ui32Size);
}
//*****************************************************************************
//
//! This function is used to send a report to a HID device.
//!
//! \param psHIDInstance is the value that was returned from the call to
//! USBHHIDOpen().
//! \param ui32Interface is the interface to send the report to.
//! \param pui8Data is the memory buffer to use to store the report.
//! \param ui32Size is the size in bytes of the buffer pointed to by
//! \e pui8Buffer.
//!
//! This function is used to send a report to a USB HID device. It can be
//! only be called from outside the callback context as this function will not
//! return from the call until the data has been sent successfully.
//!
//! \return Returns the number of bytes sent to the device.
//
//*****************************************************************************
uint32_t
USBHHIDSetReport(tHIDInstance *psHIDInstance, uint32_t ui32Interface,
uint8_t *pui8Data, uint32_t ui32Size)
{
tUSBRequest sSetupPacket;
//
// This is a class specific OUT request.
//
sSetupPacket.bmRequestType = USB_RTYPE_DIR_OUT | USB_RTYPE_CLASS |
USB_RTYPE_INTERFACE;
//
// Request a Report Descriptor.
//
sSetupPacket.bRequest = USBREQ_SET_REPORT;
sSetupPacket.wValue = USB_HID_REPORT_OUTPUT << 8;
//
// Index is always 0 for device requests.
//
sSetupPacket.wIndex = (uint16_t)ui32Interface;
//
// Always 0.
//
sSetupPacket.wLength = ui32Size;
//
// Now get the full descriptor now that the actual maximum packet size
// is known.
//
USBHCDControlTransfer(0, &sSetupPacket, psHIDInstance->psDevice,
pui8Data, ui32Size,
psHIDInstance->psDevice->sDeviceDescriptor.bMaxPacketSize0);
return(ui32Size);
}
//*****************************************************************************
//
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbhhid.h - This hold the host driver for hid class.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHHID_H__
#define __USBHHID_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
typedef struct tHIDInstance tHIDInstance;
//*****************************************************************************
//
// These defines are the the events that will be passed in the ui32Event
// parameter of the callback from the driver.
//
//*****************************************************************************
#define USBH_EVENT_HID_SETRPT USBH_HID_EVENT_BASE + 0
#define USBH_EVENT_HID_REPORT USBH_HID_EVENT_BASE + 1
//
//! The HID keyboard detected a key being pressed.
//
#define USBH_EVENT_HID_KB_PRESS USBH_HID_EVENT_BASE + 16
//
//! The HID keyboard detected a key being released.
//
#define USBH_EVENT_HID_KB_REL USBH_HID_EVENT_BASE + 17
//
//! The HID keyboard detected one of the keyboard modifiers being pressed.
//
#define USBH_EVENT_HID_KB_MOD USBH_HID_EVENT_BASE + 18
//
//! A button was pressed on a HID mouse.
//
#define USBH_EVENT_HID_MS_PRESS USBH_HID_EVENT_BASE + 32
//
//! A button was released on a HID mouse.
//
#define USBH_EVENT_HID_MS_REL USBH_HID_EVENT_BASE + 33
//
//! The HID mouse detected movement in the X direction.
//
#define USBH_EVENT_HID_MS_X USBH_HID_EVENT_BASE + 34
//
//! The HID mouse detected movement in the Y direction.
//
#define USBH_EVENT_HID_MS_Y USBH_HID_EVENT_BASE + 35
//*****************************************************************************
//
//! The following values are used to register callbacks to the USB HOST HID
//! device class layer.
//
//*****************************************************************************
typedef enum
{
//
//! No device should be used. This value should not be used by
//! applications.
//
eUSBHHIDClassNone = 0,
//
//! This is a keyboard device.
//
eUSBHHIDClassKeyboard,
//
//! This is a mouse device.
//
eUSBHHIDClassMouse,
//
//! This is a vendor specific device.
//
eUSBHHIDClassVendor
}
tHIDSubClassProtocol;
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Prototypes.
//
//*****************************************************************************
extern tHIDInstance * USBHHIDOpen(tHIDSubClassProtocol iDeviceType,
tUSBCallback pfnCallback,
void *pvCBData);
extern void USBHHIDClose(tHIDInstance *psHIDInstance);
extern uint32_t USBHHIDGetReportDescriptor(tHIDInstance *psHIDInstance,
uint8_t *pui8Buffer,
uint32_t ui32Size);
extern uint32_t USBHHIDSetIdle(tHIDInstance *psHIDInstance, uint8_t ui8Duration,
uint8_t ui8ReportID);
extern uint32_t USBHHIDSetProtocol(tHIDInstance *psHIDInstance,
uint32_t ui32BootProtocol);
extern uint32_t USBHHIDSetReport(tHIDInstance *psHIDInstance,
uint32_t ui32Interface, uint8_t *pui8Data,
uint32_t ui32Size);
extern uint32_t USBHHIDGetReport(tHIDInstance *psHIDInstance,
uint32_t ui32Interface, uint8_t *pui8Data,
uint32_t ui32Size);
extern const tUSBHostClassDriver g_sUSBHIDClassDriver;
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHHID_H__

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//*****************************************************************************
//
// usbhhidkeyboard.c - This file holds the application interfaces for USB
// keyboard devices.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "usblib/usblib.h"
#include "usblib/host/usbhost.h"
#include "usblib/usbhid.h"
#include "usblib/host/usbhhid.h"
#include "usblib/host/usbhhidkeyboard.h"
//*****************************************************************************
//
//! \addtogroup usblib_host_device
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Prototypes for local functions.
//
//*****************************************************************************
static uint32_t USBHKeyboardCallback(void *pvKeyboard, uint32_t ui32Event,
uint32_t ui32MsgParam, void *pvMsgData);
//*****************************************************************************
//
// The size of a USB keyboard report.
//
//*****************************************************************************
#define USBHKEYB_REPORT_SIZE 8
//*****************************************************************************
//
// These are the flags for the tUSBHKeyboard.ui32HIDFlags member variable.
//
//*****************************************************************************
#define USBHKEYB_DEVICE_PRESENT 0x00000001
//*****************************************************************************
//
// This is the structure definition for a keyboard device instance.
//
//*****************************************************************************
struct tUSBHKeyboard
{
//
// Global flags for an instance of a keyboard.
//
uint32_t ui32HIDFlags;
//
// The applications registered callback.
//
tUSBHIDKeyboardCallback pfnCallback;
//
// The HID instance pointer for this keyboard instance.
//
tHIDInstance *psHIDInstance;
//
// NUM_LOCK, CAPS_LOCK, SCROLL_LOCK, COMPOSE or KANA keys.
//
uint8_t ui8KeyModSticky;
//
// This is the current state of the keyboard modifier keys.
//
uint8_t ui8KeyModState;
//
// This holds the keyboard usage codes for keys that are being held down.
//
uint8_t pui8KeyState[6];
//
// This is a local buffer to hold the current HID report that comes up
// from the HID driver layer.
//
uint8_t pui8Buffer[USBHKEYB_REPORT_SIZE];
};
//*****************************************************************************
//
// This is the per instance information for a keyboard device.
//
//*****************************************************************************
static tUSBHKeyboard g_sUSBHKeyboard =
{
0
};
//*****************************************************************************
//
//! This function is used open an instance of a keyboard.
//!
//! \param pfnCallback is the callback function to call when new events occur
//! with the keyboard returned.
//! \param pui8Buffer is the memory used by the keyboard to interact with the
//! USB keyboard.
//! \param ui32Size is the size of the buffer provided by \e pui8Buffer.
//!
//! This function is used to open an instance of the keyboard. The value
//! returned from this function should be used as the instance identifier for
//! all other USBHKeyboard calls. The \e pui8Buffer memory buffer is used to
//! access the keyboard. The buffer size required is at least enough to hold
//! a normal report descriptor for the device. If there is not enough space
//! only a partial report descriptor will be read out.
//!
//! \return Returns the instance identifier for the keyboard that is attached.
//! If there is no keyboard present this will return 0.
//
//*****************************************************************************
tUSBHKeyboard *
USBHKeyboardOpen(tUSBHIDKeyboardCallback pfnCallback, uint8_t *pui8Buffer,
uint32_t ui32Size)
{
//
// Save the callback and data pointers.
//
g_sUSBHKeyboard.pfnCallback = pfnCallback;
//
// Save the instance pointer for the HID device that was opened.
//
g_sUSBHKeyboard.psHIDInstance =
USBHHIDOpen(eUSBHHIDClassKeyboard, USBHKeyboardCallback,
(void *)&g_sUSBHKeyboard);
return(&g_sUSBHKeyboard);
}
//*****************************************************************************
//
//! This function is used close an instance of a keyboard.
//!
//! \param psKbInstance is the instance value for this keyboard.
//!
//! This function is used to close an instance of the keyboard that was opened
//! with a call to USBHKeyboardOpen(). The \e psKbInstance value is the
//! value that was returned when the application called USBHKeyboardOpen().
//!
//! \return This function returns 0 to indicate success any non-zero value
//! indicates an error condition.
//
//*****************************************************************************
uint32_t
USBHKeyboardClose(tUSBHKeyboard *psKbInstance)
{
//
// Reset the callback to null.
//
psKbInstance->pfnCallback = 0;
//
// Call the HID driver layer to close out this instance.
//
USBHHIDClose(psKbInstance->psHIDInstance);
return(0);
}
//*****************************************************************************
//
//! This function is used to map a USB usage ID to a printable character.
//!
//! \param psKbInstance is the instance value for this keyboard.
//! \param psTable is the table to use to map the usage ID to characters.
//! \param ui8UsageID is the USB usage ID to map to a character.
//!
//! This function is used to map a USB usage ID to a character. The provided
//! \e psTable is used to perform the mapping and is described by the
//! tHIDKeyboardUsageTable type defined structure. See the documentation on
//! the tHIDKeyboardUsageTable structure for more details on the internals of
//! this structure. This function uses the current state of the shift keys
//! and the Caps Lock key to modify the data returned by this function. The
//! psTable structure has values indicating which keys are modified by Caps
//! and alternate values for shifted cases. The number of bytes returned from
//! Lock this function depends on the \e psTable structure passed in as it
//! holds the number of bytes per character in the table.
//!
//! \return Returns the character value for the given usage id.
//
//*****************************************************************************
uint32_t
USBHKeyboardUsageToChar(tUSBHKeyboard *psKbInstance,
const tHIDKeyboardUsageTable *psTable,
uint8_t ui8UsageID)
{
uint32_t ui32Value, ui32Offset, ui32Shift;
const uint8_t *pui8KeyBoardMap;
const uint16_t *pui16KeyBoardMap;
//
// The added offset for the shifted character value.
//
ui32Shift = 0;
//
// Offset in the table for the character.
//
ui32Offset = (ui8UsageID * psTable->ui8BytesPerChar * 2);
//
// Handle the case where CAPS lock has been set.
//
if(psKbInstance->ui8KeyModSticky &= HID_KEYB_CAPS_LOCK)
{
//
// See if this usage ID is modified by Caps Lock by checking the packed
// bit array in the pui32ShiftState member of the psTable array.
//
if((psTable->pui32CapsLock[ui8UsageID >> 5]) >>
(ui8UsageID & 0x1f) & 1)
{
ui32Shift = psTable->ui8BytesPerChar;
}
}
//
// Now handle if a shift key is being held.
//
if((psKbInstance->ui8KeyModState & 0x22) != 0)
{
//
// Not shifted yet so we need to shift.
//
if(ui32Shift == 0)
{
ui32Shift = psTable->ui8BytesPerChar;
}
else
{
//
// Unshift because CAPS LOCK and shift were pressed.
//
ui32Shift = 0;
}
}
//
// One byte per character.
//
if(psTable->ui8BytesPerChar == 1)
{
//
// Get the base address of the table.
//
pui8KeyBoardMap = psTable->pvCharMapping;
ui32Value = pui8KeyBoardMap[ui32Offset + ui32Shift];
}
//
// Two bytes per character.
//
else if(psTable->ui8BytesPerChar == 2)
{
//
// Get the base address of the table.
//
pui16KeyBoardMap = (uint16_t *)psTable->pvCharMapping;
ui32Value = pui16KeyBoardMap[ui32Offset + ui32Shift];
}
//
// All other sizes are unsupported for now.
//
else
{
ui32Value = 0;
}
return(ui32Value);
}
//*****************************************************************************
//
//! This function is used to set one of the fixed modifier keys on a keyboard.
//!
//! \param psKbInstance is the instance value for this keyboard.
//! \param ui32Modifiers is a bit mask of the modifiers to set on the keyboard.
//!
//! This function is used to set the modifier key states on a keyboard. The
//! \e ui32Modifiers value is a bitmask of the following set of values:
//! - HID_KEYB_NUM_LOCK
//! - HID_KEYB_CAPS_LOCK
//! - HID_KEYB_SCROLL_LOCK
//! - HID_KEYB_COMPOSE
//! - HID_KEYB_KANA
//!
//! Not all of these will be supported on all keyboards however setting values
//! on a keyboard that does not have them should have no effect. The
//! \e psKbInstance value is the value that was returned when the application
//! called USBHKeyboardOpen(). If the value \b HID_KEYB_CAPS_LOCK is used it
//! will modify the values returned from the USBHKeyboardUsageToChar()
//! function.
//!
//! \return This function returns 0 to indicate success any non-zero value
//! indicates an error condition.
//
//*****************************************************************************
uint32_t
USBHKeyboardModifierSet(tUSBHKeyboard *psKbInstance, uint32_t ui32Modifiers)
{
//
// Remember the fact that this is set.
//
psKbInstance->ui8KeyModSticky = (uint8_t)ui32Modifiers;
//
// Set the LEDs on the keyboard.
//
USBHHIDSetReport(psKbInstance->psHIDInstance, 0,
(uint8_t *)&ui32Modifiers, 1);
return(0);
}
//*****************************************************************************
//
//! This function is used to initialize a keyboard interface after a keyboard
//! has been detected.
//!
//! \param psKbInstance is the instance value for this keyboard.
//!
//! This function should be called after receiving a \b USB_EVENT_CONNECTED
//! event in the callback function provided by USBHKeyboardOpen(), however this
//! function should only be called outside the callback function. This will
//! initialize the keyboard interface and determine the keyboard's
//! layout and how it reports keys to the USB host controller. The
//! \e psKbInstance value is the value that was returned when the application
//! called USBHKeyboardOpen(). This function only needs to be called once
//! per connection event but it should be called every time a
//! \b USB_EVENT_CONNECTED event occurs.
//!
//! \return This function returns 0 to indicate success any non-zero value
//! indicates an error condition.
//
//*****************************************************************************
uint32_t
USBHKeyboardInit(tUSBHKeyboard *psKbInstance)
{
uint8_t ui8ModData;
//
// Set the initial rate to only update on keyboard state changes.
//
USBHHIDSetIdle(psKbInstance->psHIDInstance, 0, 0);
//
// Read out the Report Descriptor from the keyboard and parse it for
// the format of the reports coming back from the keyboard.
//
USBHHIDGetReportDescriptor(psKbInstance->psHIDInstance,
psKbInstance->pui8Buffer,
USBHKEYB_REPORT_SIZE);
//
// Set the keyboard to boot protocol.
//
USBHHIDSetProtocol(psKbInstance->psHIDInstance, 1);
//
// Used to clear the initial state of all on keyboard modifiers.
//
ui8ModData = 0;
//
// Update the keyboard LED state.
//
USBHHIDSetReport(psKbInstance->psHIDInstance, 0, &ui8ModData, 1);
return(0);
}
//*****************************************************************************
//
//! This function is used to set the automatic poll rate of the keyboard.
//!
//! \param psKbInstance is the instance value for this keyboard.
//! \param ui32PollRate is the rate in ms to cause the keyboard to update the
//! host regardless of no change in key state.
//!
//! This function will allow an application to tell the keyboard how often it
//! should send updates to the USB host controller regardless of any changes
//! in keyboard state. The \e psKbInstance value is the value that was
//! returned when the application called USBHKeyboardOpen(). The
//! \e ui32PollRate is the new value in ms for the update rate on the keyboard.
//! This value is initially set to 0 which indicates that the keyboard should
//! only to update when the keyboard state changes. Any value other than 0 can
//! be used to force the keyboard to generate auto-repeat sequences for the
//! application.
//!
//! \return This function returns 0 to indicate success any non-zero value
//! indicates an error condition.
//
//*****************************************************************************
uint32_t
USBHKeyboardPollRateSet(tUSBHKeyboard *psKbInstance, uint32_t ui32PollRate)
{
//
// Send the Set Idle command to the USB keyboard.
//
USBHHIDSetIdle(psKbInstance->psHIDInstance, ui32PollRate, 0);
return(0);
}
//*****************************************************************************
//
// This is an internal function used to modify the current keyboard state.
//
// This function checks for changes in the keyboard state due to a new report
// being received from the device. It first checks if this is a "roll-over"
// case by seeing if 0x01 is in the first position of the new keyboard report.
// This indicates that too many keys were pressed to handle and to ignore this
// report. Next the keyboard modifier state is stored and if any changes are
// detected a \b USBH_EVENT_HID_KB_MOD event is sent back to the application.
// Then this function will check for any keys that have been released and send
// a \b USBH_EVENT_HID_KB_REL even for each of these keys. The last check is
// for any new keys that are pressed and a \b USBH_EVENT_HID_KB_PRESS event
// will be sent for each new key pressed.
//
// \return None.
//
//*****************************************************************************
static void
UpdateKeyboardState(tUSBHKeyboard *psKbInstance)
{
int32_t i32NewKey, i32OldKey;
//
// rollover code so ignore this buffer.
//
if(psKbInstance->pui8Buffer[2] == 0x01)
{
return;
}
//
// Handle the keyboard modifier states.
//
if(psKbInstance->ui8KeyModState != psKbInstance->pui8Buffer[0])
{
//
// Notify the application of the event.
//
psKbInstance->pfnCallback(0, USBH_EVENT_HID_KB_MOD,
psKbInstance->pui8Buffer[0], 0);
//
// Save the new state of the modifier keys.
//
psKbInstance->ui8KeyModState = psKbInstance->pui8Buffer[0];
}
//
// This loop checks for keys that have been released to make room for new
// ones that may have been pressed.
//
for(i32OldKey = 2; i32OldKey < 8; i32OldKey++)
{
//
// If there is no old key pressed in this entry go to the next one.
//
if(psKbInstance->pui8KeyState[i32OldKey] == 0)
{
continue;
}
//
// Check if this old key is still in the list of currently pressed
// keys.
//
for(i32NewKey = 2; i32NewKey < 8; i32NewKey++)
{
//
// Break out if the key is still present.
//
if(psKbInstance->pui8Buffer[i32NewKey] ==
psKbInstance->pui8KeyState[i32OldKey])
{
break;
}
}
//
// If the old key was no longer in the list of pressed keys then
// notify the application of the key release.
//
if(i32NewKey == 8)
{
//
// Send the key release notification to the application.
//
psKbInstance->pfnCallback(0, USBH_EVENT_HID_KB_REL,
psKbInstance->pui8KeyState[i32OldKey],
0);
//
// Remove the old key from the currently held key list.
//
psKbInstance->pui8KeyState[i32OldKey] = 0;
}
}
//
// This loop checks for new keys that have been pressed.
//
for(i32NewKey = 2; i32NewKey < 8; i32NewKey++)
{
//
// The new list is empty so no new keys are pressed.
//
if(psKbInstance->pui8Buffer[i32NewKey] == 0)
{
break;
}
//
// This loop checks if the current key was already pressed.
//
for(i32OldKey = 2; i32OldKey < 8; i32OldKey++)
{
//
// If it is in both lists then it was already pressed so ignore it.
//
if(psKbInstance->pui8Buffer[i32NewKey] ==
psKbInstance->pui8KeyState[i32OldKey])
{
break;
}
}
//
// The key in the new list was not found so it is new.
//
if(i32OldKey == 8)
{
//
// Look for a free location to store this key usage code.
//
for(i32OldKey = 2; i32OldKey < 8; i32OldKey++)
{
//
// If an empty location is found, store it and notify the
// application.
//
if(psKbInstance->pui8KeyState[i32OldKey] == 0)
{
//
// Save the newly pressed key.
//
psKbInstance->pui8KeyState[i32OldKey] =
psKbInstance->pui8Buffer[i32NewKey];
//
// Notify the application of the new key that has been
// pressed.
//
psKbInstance->pfnCallback( 0, USBH_EVENT_HID_KB_PRESS,
psKbInstance->pui8Buffer[i32NewKey],
0);
break;
}
}
}
}
}
//*****************************************************************************
//
//! This function handles event callbacks from the USB HID driver layer.
//!
//! \param pvKeyboard is the pointer that was passed in to the USBHHIDOpen()
//! call.
//! \param ui32Event is the event that has been passed up from the HID driver.
//! \param ui32MsgParam has meaning related to the \e ui32Event that occurred.
//! \param pvMsgData has meaning related to the \e ui32Event that occurred.
//!
//! This function will receive all event updates from the HID driver layer.
//! The keyboard driver itself will mostly be concerned with report callbacks
//! from the HID driver layer and parsing them into keystrokes for the
//! application that has registered for callbacks with the USBHKeyboardOpen()
//! call.
//!
//! \return Non-zero values should be assumed to indicate an error condition.
//
//*****************************************************************************
static uint32_t
USBHKeyboardCallback(void *pvKeyboard, uint32_t ui32Event,
uint32_t ui32MsgParam, void *pvMsgData)
{
tUSBHKeyboard *psKbInstance;
//
// Recover the pointer to the instance data.
//
psKbInstance = (tUSBHKeyboard *)pvKeyboard;
switch (ui32Event)
{
//
// New keyboard has been connected so notify the application.
//
case USB_EVENT_CONNECTED:
{
//
// Remember that a keyboard is present.
//
psKbInstance->ui32HIDFlags |= USBHKEYB_DEVICE_PRESENT;
//
// Notify the application that a new keyboard was connected.
//
psKbInstance->pfnCallback(0, ui32Event, ui32MsgParam, pvMsgData);
break;
}
case USB_EVENT_DISCONNECTED:
{
//
// No keyboard is present.
//
psKbInstance->ui32HIDFlags &= ~USBHKEYB_DEVICE_PRESENT;
//
// Notify the application that the keyboard was disconnected.
//
psKbInstance->pfnCallback(0, ui32Event, ui32MsgParam, pvMsgData);
break;
}
case USB_EVENT_RX_AVAILABLE:
{
//
// New keyboard report structure was received.
//
USBHHIDGetReport(psKbInstance->psHIDInstance, 0,
psKbInstance->pui8Buffer,
USBHKEYB_REPORT_SIZE);
//
// Update the application on the changes in the keyboard state.
//
UpdateKeyboardState(psKbInstance);
break;
}
}
return(0);
}
//*****************************************************************************
//
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbhhidkeyboard.h - This file holds the application interfaces for USB
// keyboard devices.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHHIDKEYBOARD_H__
#define __USBHHIDKEYBOARD_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_device
//! @{
//
//*****************************************************************************
typedef struct tUSBHKeyboard tUSBHKeyboard;
//*****************************************************************************
//
// The prototype for the host USB Keyboard driver callback function.
//
//*****************************************************************************
typedef void (*tUSBHIDKeyboardCallback)(tUSBHKeyboard *psKbInstance,
uint32_t ui32Event,
uint32_t ui32MsgParam,
void *pvMsgData);
extern tUSBHKeyboard * USBHKeyboardOpen(tUSBHIDKeyboardCallback pfnCallback,
uint8_t *pui8Buffer,
uint32_t ui32BufferSize);
extern uint32_t USBHKeyboardClose(tUSBHKeyboard *psKbInstance);
extern uint32_t USBHKeyboardInit(tUSBHKeyboard *psKbInstance);
extern uint32_t USBHKeyboardModifierSet(tUSBHKeyboard *psKbInstance,
uint32_t ui32Modifiers);
extern uint32_t USBHKeyboardPollRateSet(tUSBHKeyboard *psKbInstance,
uint32_t ui32PollRate);
extern uint32_t USBHKeyboardUsageToChar(tUSBHKeyboard *psKbInstance,
const tHIDKeyboardUsageTable *psTable,
uint8_t ui8UsageID);
//*****************************************************************************
//
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbhhidmouse.c - This file holds the application interfaces for USB
// mouse devices.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "usblib/usblib.h"
#include "usblib/host/usbhost.h"
#include "usblib/usbhid.h"
#include "usblib/host/usbhhid.h"
#include "usblib/host/usbhhidmouse.h"
//*****************************************************************************
//
//! \addtogroup usblib_host_device
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Prototypes for local functions.
//
//*****************************************************************************
static uint32_t USBHMouseCallback(void *pvMouse, uint32_t ui32Event,
uint32_t ui32MsgParam, void *pvMsgData);
//*****************************************************************************
//
// The size of a USB mouse report.
//
//*****************************************************************************
#define USBHMS_REPORT_SIZE 4
//*****************************************************************************
//
// These are the flags for the tUSBHMouse.ui32HIDFlags member variable.
//
//*****************************************************************************
#define USBHMS_DEVICE_PRESENT 0x00000001
//*****************************************************************************
//
// This is the structure definition for a mouse device instance.
//
//*****************************************************************************
struct tUSBHMouse
{
//
// Global flags for an instance of a mouse.
//
uint32_t ui32HIDFlags;
//
// The applications registered callback.
//
tUSBHIDMouseCallback pfnCallback;
//
// The current state of the buttons.
//
uint8_t ui8Buttons;
//
// This is a local buffer to hold the current HID report that comes up
// from the HID driver layer.
//
uint8_t pui8Buffer[USBHMS_REPORT_SIZE];
//
// Heap data for the mouse currently used to read the HID Report
// Descriptor.
//
uint8_t *pui8Heap;
//
// Size of the heap in bytes.
//
uint32_t ui32HeapSize;
//
// This is the instance value for the HID device that will be used for the
// mouse.
//
tHIDInstance *psHIDInstance;
};
//*****************************************************************************
//
// This is the per instance information for a mouse device.
//
//*****************************************************************************
static tUSBHMouse g_sUSBHMouse =
{
0
};
//*****************************************************************************
//
//! This function is used open an instance of a mouse.
//!
//! \param pfnCallback is the callback function to call when new events occur
//! with the mouse returned.
//! \param pui8Buffer is the memory used by the driver to interact with the
//! USB mouse.
//! \param ui32Size is the size of the buffer provided by \e pui8Buffer.
//!
//! This function is used to open an instance of the mouse. The value
//! returned from this function should be used as the instance identifier for
//! all other USBHMouse calls. The \e pui8Buffer memory buffer is used to
//! access the mouse. The buffer size required is at least enough to hold
//! a normal report descriptor for the device.
//!
//! \return Returns the instance identifier for the mouse that is attached.
//! If there is no mouse present this will return 0.
//
//*****************************************************************************
tUSBHMouse *
USBHMouseOpen(tUSBHIDMouseCallback pfnCallback, uint8_t *pui8Buffer,
uint32_t ui32Size)
{
//
// Save the callback and data pointers.
//
g_sUSBHMouse.pfnCallback = pfnCallback;
//
// Save the instance pointer for the HID device that was opened.
//
g_sUSBHMouse.psHIDInstance = USBHHIDOpen(eUSBHHIDClassMouse,
USBHMouseCallback,
(void *)&g_sUSBHMouse);
//
// Save the heap buffer and size.
//
g_sUSBHMouse.pui8Heap = pui8Buffer;
g_sUSBHMouse.ui32HeapSize = ui32Size;
return(&g_sUSBHMouse);
}
//*****************************************************************************
//
//! This function is used close an instance of a mouse.
//!
//! \param psMsInstance is the instance value for this mouse.
//!
//! This function is used to close an instance of the mouse that was opened
//! with a call to USBHMouseOpen(). The \e psMsInstance value is the value
//! that was returned when the application called USBHMouseOpen().
//!
//! \return Returns 0.
//
//*****************************************************************************
uint32_t
USBHMouseClose(tUSBHMouse *psMsInstance)
{
//
// Reset the callback to null.
//
psMsInstance->pfnCallback = 0;
//
// Call the HID driver layer to close out this instance.
//
USBHHIDClose(psMsInstance->psHIDInstance);
return(0);
}
//*****************************************************************************
//
//! This function is used to initialize a mouse interface after a mouse has
//! been detected.
//!
//! \param psMsInstance is the instance value for this mouse.
//!
//! This function should be called after receiving a \b USB_EVENT_CONNECTED
//! event in the callback function provided by USBHMouseOpen(), however it
//! should only be called outside of the callback function. This will
//! initialize the mouse interface and determine how it reports events to the
//! USB host controller. The \e psMsInstance value is the value that was
//! returned when the application called USBHMouseOpen(). This function only
//! needs to be called once per connection event but it should be called every
//! time a \b USB_EVENT_CONNECTED event occurs.
//!
//! \return Non-zero values should be assumed to indicate an error condition.
//
//*****************************************************************************
uint32_t
USBHMouseInit(tUSBHMouse *psMsInstance)
{
//
// Set the initial rate to only update on mouse state changes.
//
USBHHIDSetIdle(psMsInstance->psHIDInstance, 0, 0);
//
// Read out the Report Descriptor from the mouse and parse it for
// the format of the reports coming back from the mouse.
//
USBHHIDGetReportDescriptor(psMsInstance->psHIDInstance,
psMsInstance->pui8Heap,
psMsInstance->ui32HeapSize);
//
// Set the mouse to boot protocol.
//
USBHHIDSetProtocol(psMsInstance->psHIDInstance, 1);
return(0);
}
//*****************************************************************************
//
// This function handles updating the state of the mouse buttons and axis.
//
// \param psMsInstance is the pointer to an instance of the mouse data.
//
// This function will check for updates to buttons or X/Y movements and send
// callbacks to the mouse callback function.
//
// \return None.
//
//*****************************************************************************
static void
UpdateMouseState(tUSBHMouse *psMsInstance)
{
uint32_t ui32Button;
if(psMsInstance->pui8Buffer[0] != psMsInstance->ui8Buttons)
{
for(ui32Button = 1; ui32Button <= 0x4; ui32Button <<= 1)
{
if(((psMsInstance->pui8Buffer[0] & ui32Button) != 0) &&
((psMsInstance->ui8Buttons & ui32Button) == 0))
{
//
// Send the mouse button press notification to the application.
//
psMsInstance->pfnCallback(0, USBH_EVENT_HID_MS_PRESS,
ui32Button, 0);
}
if(((psMsInstance->pui8Buffer[0] & ui32Button) == 0) &&
((psMsInstance->ui8Buttons & ui32Button) != 0))
{
//
// Send the mouse button release notification to the
// application.
//
psMsInstance->pfnCallback(0, USBH_EVENT_HID_MS_REL,
ui32Button, 0);
}
}
//
// Save the new state.
//
psMsInstance->ui8Buttons = psMsInstance->pui8Buffer[0];
}
if(psMsInstance->pui8Buffer[1] != 0)
{
//
// Send the mouse button release notification to the
// application.
//
psMsInstance->pfnCallback(0, USBH_EVENT_HID_MS_X,
(uint32_t)psMsInstance->pui8Buffer[1], 0);
}
if(psMsInstance->pui8Buffer[2] != 0)
{
//
// Send the mouse button release notification to the
// application.
//
psMsInstance->pfnCallback(0, USBH_EVENT_HID_MS_Y,
(uint32_t)psMsInstance->pui8Buffer[2], 0);
}
}
//*****************************************************************************
//
//! This function handles event callbacks from the USB HID driver layer.
//!
//! \param pvMouse is the pointer that was passed in to the USBHHIDOpen()
//! call.
//! \param ui32Event is the event that has been passed up from the HID driver.
//! \param ui32MsgParam has meaning related to the \e ui32Event that occurred.
//! \param pvMsgData has meaning related to the \e ui32Event that occurred.
//!
//! This function will receive all event updates from the HID driver layer.
//! The mouse driver itself will mostly be concerned with report callbacks
//! from the HID driver layer and parsing them into keystrokes for the
//! application that has registered for callbacks with the USBHMouseOpen()
//! call.
//!
//! \return Non-zero values should be assumed to indicate an error condition.
//
//*****************************************************************************
uint32_t
USBHMouseCallback(void *pvMouse, uint32_t ui32Event,
uint32_t ui32MsgParam, void *pvMsgData)
{
tUSBHMouse *psMsInstance;
//
// Recover the pointer to the instance data.
//
psMsInstance = (tUSBHMouse *)pvMouse;
switch(ui32Event)
{
//
// New mouse has been connected so notify the application.
//
case USB_EVENT_CONNECTED:
{
//
// Remember that a mouse is present.
//
psMsInstance->ui32HIDFlags |= USBHMS_DEVICE_PRESENT;
//
// Notify the application that a new mouse was connected.
//
psMsInstance->pfnCallback(0, ui32Event, ui32MsgParam, pvMsgData);
break;
}
case USB_EVENT_DISCONNECTED:
{
//
// No mouse is present.
//
psMsInstance->ui32HIDFlags &= ~USBHMS_DEVICE_PRESENT;
//
// Notify the application that the mouse was disconnected.
//
psMsInstance->pfnCallback(0, ui32Event, ui32MsgParam, pvMsgData);
break;
}
case USB_EVENT_RX_AVAILABLE:
{
//
// New mouse report structure was received.
//
USBHHIDGetReport(psMsInstance->psHIDInstance, 0,
psMsInstance->pui8Buffer, USBHMS_REPORT_SIZE);
//
// Update the current state of the mouse and notify the application
// of any changes.
//
UpdateMouseState(psMsInstance);
break;
}
}
return(0);
}
//*****************************************************************************
//
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbhhidmouse.h - This file holds the application interfaces for USB
// mouse devices.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHHIDMOUSE_H__
#define __USBHHIDMOUSE_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_device
//! @{
//
//*****************************************************************************
typedef struct tUSBHMouse tUSBHMouse;
//*****************************************************************************
//
// The prototype for the host USB mouse driver callback function.
//
//*****************************************************************************
typedef void (*tUSBHIDMouseCallback)(tUSBHMouse *psMsInstance,
uint32_t ui32Event,
uint32_t ui32MsgParam,
void *pvMsgData);
extern tUSBHMouse * USBHMouseOpen(tUSBHIDMouseCallback pfnCallback,
uint8_t *pui8Buffer, uint32_t ui32Size);
extern uint32_t USBHMouseClose(tUSBHMouse *psMsInstance);
extern uint32_t USBHMouseInit(tUSBHMouse *psMsInstance);
//*****************************************************************************
//
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif

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//*****************************************************************************
//
// usbhhub.h - This hold the host driver for hid class.
//
// Copyright (c) 2011-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHHUB_H__
#define __USBHHUB_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
typedef struct tHubInstance tHubInstance;
extern const tUSBHostClassDriver g_sUSBHubClassDriver;
//*****************************************************************************
//
// The USB standard allows for up to 127 downstream ports on a single hub.
// This would require rather more memory than we would like to set aside so the
// default configuration of the hub driver supports hubs with up to 7
// downstream-facing ports. In practice, this should be more than enough
// since this covers the vast majority of consumer hubs. Note that, by
// default, we will only support 4 devices so you can't fully populate a 7 port
// hub and have everything work.
//
// Feel free to change this but bad things will happen if you increase it above
// 31 since we assume the reports will always fit inside a 4 byte buffer.
//
//*****************************************************************************
#define ROOT_HUB_MAX_PORTS 7
//*****************************************************************************
//
// Values used as the ui16Feature parameter to USBHHubClearHubFeature().
//
//*****************************************************************************
#define HUB_FEATURE_C_HUB_LOCAL_POWER \
0
#define HUB_FEATURE_C_HUB_OVER_CURRENT \
1
//*****************************************************************************
//
// Values used as the ui16Feature parameter to USBHHubSetPortFeature() and
// USBHHubClearPortFeature().
//
//*****************************************************************************
#define HUB_FEATURE_PORT_CONNECTION \
0
#define HUB_FEATURE_PORT_ENABLE 1
#define HUB_FEATURE_PORT_SUSPEND \
2
#define HUB_FEATURE_PORT_OVER_CURRENT \
3
#define HUB_FEATURE_PORT_RESET 4
#define HUB_FEATURE_PORT_POWER 8
#define HUB_FEATURE_PORT_LOW_SPEED \
9
#define HUB_FEATURE_C_PORT_CONNECTION \
16
#define HUB_FEATURE_C_PORT_ENABLE \
17
#define HUB_FEATURE_C_PORT_SUSPEND \
18
#define HUB_FEATURE_C_PORT_OVER_CURRENT \
19
#define HUB_FEATURE_C_PORT_RESET \
20
#define HUB_FEATURE_PORT_TEST 21
#define HUB_FEATURE_PORT_INDICATOR \
22
//*****************************************************************************
//
// Values returned via the *pui16HubStatus and *pui16HubChange parameters
// passed to USBHHubGetHubStatus(). These may be ORed together into the
// returned status value.
//
//*****************************************************************************
#define HUB_STATUS_PWR_LOST 1
#define HUB_STATUS_OVER_CURRENT 2
//*****************************************************************************
//
// Values returned via the *pui16PortStatus parameter passed to
// USBHHubGetPortStatus(). These may be ORed together into the returned status
// value.
//
//*****************************************************************************
#define HUB_PORT_STATUS_DEVICE_PRESENT \
0x0001
#define HUB_PORT_STATUS_ENABLED 0x0002
#define HUB_PORT_STATUS_SUSPENDED \
0x0004
#define HUB_PORT_STATUS_OVER_CURRENT \
0x0008
#define HUB_PORT_STATUS_RESET 0x0010
#define HUB_PORT_STATUS_POWERED 0x0100
#define HUB_PORT_STATUS_LOW_SPEED \
0x0200
#define HUB_PORT_STATUS_HIGH_SPEED \
0x0400
#define HUB_PORT_STATUS_TEST_MODE \
0x0800
#define HUB_PORT_STATUS_INDICATOR_CONTROL \
0x1000
//*****************************************************************************
//
// Values returned via the *pui16PortChange parameter passed to
// USBHHubGetPortStatus(). These may be ORed together into the returned status
// value.
//
//*****************************************************************************
#define HUB_PORT_CHANGE_DEVICE_PRESENT \
0x0001
#define HUB_PORT_CHANGE_ENABLED 0x0002
#define HUB_PORT_CHANGE_SUSPENDED \
0x0004
#define HUB_PORT_CHANGE_OVER_CURRENT \
0x0008
#define HUB_PORT_CHANGE_RESET 0x0010
//*****************************************************************************
//
// The prototype for the USB Hub host driver callback function.
//
//*****************************************************************************
typedef void (*tUSBHHubCallback)(tHubInstance *psHubInstance,
uint32_t ui32Event, uint32_t ui32MsgParam,
void *pvMsgData);
//*****************************************************************************
//
// Public function prototypes for the HUB class driver.
//
//*****************************************************************************
extern tHubInstance * USBHHubOpen(tUSBHHubCallback pfnCallback);
extern void USBHHubClose(tHubInstance *psHubInstance);
#ifdef __cplusplus
}
#endif
#endif // __USBHHUB_H__

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//*****************************************************************************
//
// usbhmsc.c - USB MSC host driver.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "driverlib/usbdrv.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
#include "usblib/usbmsc.h"
#include "usblib/host/usbhost.h"
#include "usblib/host/usbhostpriv.h"
#include "usblib/host/usbhmsc.h"
#include "usblib/host/usbhscsi.h"
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Forward declarations for the driver open and close calls.
//
//*****************************************************************************
static void *USBHMSCOpen(tUSBHostDevice *psDevice);
static void USBHMSCClose(void *pvInstance);
//*****************************************************************************
//
// This is the structure for an instance of a USB MSC host driver.
//
//*****************************************************************************
struct tUSBHMSCInstance
{
//
// Save the device instance.
//
tUSBHostDevice *psDevice;
//
// Used to save the callback.
//
tUSBHMSCCallback pfnCallback;
//
// The Maximum LUNs
//
uint32_t ui32MaxLUN;
//
// The total number of blocks associated with this device.
//
uint32_t ui32NumBlocks;
//
// The size of the blocks associated with this device.
//
uint32_t ui32BlockSize;
//
// Bulk IN pipe.
//
uint32_t ui32BulkInPipe;
//
// Bulk OUT pipe.
//
uint32_t ui32BulkOutPipe;
};
//*****************************************************************************
//
// The array of USB MSC host drivers.
//
//*****************************************************************************
static tUSBHMSCInstance g_sUSBHMSCDevice =
{
0
};
//*****************************************************************************
//
//! This constant global structure defines the Mass Storage Class Driver that
//! is provided with the USB library.
//
//*****************************************************************************
const tUSBHostClassDriver g_sUSBHostMSCClassDriver =
{
USB_CLASS_MASS_STORAGE,
USBHMSCOpen,
USBHMSCClose,
0
};
//*****************************************************************************
//
//! This function is used to open an instance of the MSC driver.
//!
//! \param psDevice is a pointer to the device information structure.
//!
//! This function will attempt to open an instance of the MSC driver based on
//! the information contained in the \e psDevice structure. This call can fail
//! if there are not sufficient resources to open the device. The function
//! returns a value that should be passed back into USBMSCClose() when the
//! driver is no longer needed.
//!
//! \return The function will return a pointer to a MSC driver instance.
//
//*****************************************************************************
static void *
USBHMSCOpen(tUSBHostDevice *psDevice)
{
int32_t i32Idx;
tEndpointDescriptor *psEndpointDescriptor;
tInterfaceDescriptor *psInterface;
//
// Don't allow the device to be opened without closing first.
//
if(g_sUSBHMSCDevice.psDevice)
{
return(0);
}
//
// Save the device pointer.
//
g_sUSBHMSCDevice.psDevice = psDevice;
//
// Get the interface descriptor.
//
psInterface = USBDescGetInterface(psDevice->psConfigDescriptor, 0, 0);
//
// Loop through the endpoints of the device.
//
for(i32Idx = 0; i32Idx < 3; i32Idx++)
{
//
// Get the first endpoint descriptor.
//
psEndpointDescriptor =
USBDescGetInterfaceEndpoint(psInterface, i32Idx,
psDevice->ui32ConfigDescriptorSize);
//
// If no more endpoints then break out.
//
if(psEndpointDescriptor == 0)
{
break;
}
//
// See if this is a bulk endpoint.
//
if((psEndpointDescriptor->bmAttributes & USB_EP_ATTR_TYPE_M) ==
USB_EP_ATTR_BULK)
{
//
// See if this is bulk IN or bulk OUT.
//
if(psEndpointDescriptor->bEndpointAddress & USB_EP_DESC_IN)
{
//
// Allocate the USB Pipe for this Bulk IN endpoint.
//
g_sUSBHMSCDevice.ui32BulkInPipe =
USBHCDPipeAllocSize(0, USBHCD_PIPE_BULK_IN_DMA,
psDevice,
psEndpointDescriptor->wMaxPacketSize,
0);
//
// Configure the USB pipe as a Bulk IN endpoint.
//
USBHCDPipeConfig(g_sUSBHMSCDevice.ui32BulkInPipe,
psEndpointDescriptor->wMaxPacketSize,
0,
(psEndpointDescriptor->bEndpointAddress &
USB_EP_DESC_NUM_M));
}
else
{
//
// Allocate the USB Pipe for this Bulk OUT endpoint.
//
g_sUSBHMSCDevice.ui32BulkOutPipe =
USBHCDPipeAllocSize(0, USBHCD_PIPE_BULK_OUT_DMA,
psDevice,
psEndpointDescriptor->wMaxPacketSize,
0);
//
// Configure the USB pipe as a Bulk OUT endpoint.
//
USBHCDPipeConfig(g_sUSBHMSCDevice.ui32BulkOutPipe,
psEndpointDescriptor->wMaxPacketSize,
0,
(psEndpointDescriptor->bEndpointAddress &
USB_EP_DESC_NUM_M));
}
}
}
//
// If the callback exists, call it with an Open event.
//
if(g_sUSBHMSCDevice.pfnCallback != 0)
{
g_sUSBHMSCDevice.pfnCallback(&g_sUSBHMSCDevice, MSC_EVENT_OPEN, 0);
}
g_sUSBHMSCDevice.ui32MaxLUN = 0xffffffff;
//
// Return the only instance of this device.
//
return(&g_sUSBHMSCDevice);
}
//*****************************************************************************
//
//! This function is used to release an instance of the MSC driver.
//!
//! \param pvInstance is an instance pointer that needs to be released.
//!
//! This function will free up any resources in use by the MSC driver instance
//! that is passed in. The \e pvInstance pointer should be a valid value that
//! was returned from a call to USBMSCOpen().
//!
//! \return None.
//
//*****************************************************************************
static void
USBHMSCClose(void *pvInstance)
{
//
// Do nothing if there is not a driver open.
//
if(g_sUSBHMSCDevice.psDevice == 0)
{
return;
}
//
// Reset the device pointer.
//
g_sUSBHMSCDevice.psDevice = 0;
//
// Free the Bulk IN pipe.
//
if(g_sUSBHMSCDevice.ui32BulkInPipe != 0)
{
USBHCDPipeFree(g_sUSBHMSCDevice.ui32BulkInPipe);
}
//
// Free the Bulk OUT pipe.
//
if(g_sUSBHMSCDevice.ui32BulkOutPipe != 0)
{
USBHCDPipeFree(g_sUSBHMSCDevice.ui32BulkOutPipe);
}
//
// If the callback exists then call it.
//
if(g_sUSBHMSCDevice.pfnCallback != 0)
{
g_sUSBHMSCDevice.pfnCallback(&g_sUSBHMSCDevice, MSC_EVENT_CLOSE, 0);
}
}
//*****************************************************************************
//
//! This function retrieves the maximum number of the logical units on a
//! mass storage device.
//!
//! \param psDevice is the device instance pointer for this request.
//! \param ui32Interface is the interface number on the device specified by the
//! \e ui32Address parameter.
//! \param pui8MaxLUN is the byte value returned from the device for the
//! device's maximum logical unit.
//!
//! The device will return one byte of data that contains the maximum LUN
//! supported by the device. For example, if the device supports four LUNs
//! then the LUNs would be numbered from 0 to 3 and the return value would be
//! 3. If no LUN is associated with the device, the value returned shall be 0.
//!
//! \return None.
//
//*****************************************************************************
static void
USBHMSCGetMaxLUN(tUSBHostDevice *psDevice, uint32_t ui32Interface,
uint8_t *pui8MaxLUN)
{
tUSBRequest sSetupPacket;
//
// This is a Class specific interface IN request.
//
sSetupPacket.bmRequestType =
USB_RTYPE_DIR_IN | USB_RTYPE_CLASS | USB_RTYPE_INTERFACE;
//
// Request a the Max LUN for this interface.
//
sSetupPacket.bRequest = USBREQ_GET_MAX_LUN;
sSetupPacket.wValue = 0;
//
// Indicate the interface to use.
//
sSetupPacket.wIndex = (uint16_t)ui32Interface;
//
// Only request a single byte of data.
//
sSetupPacket.wLength = 1;
//
// Put the setup packet in the buffer and send the command.
//
if(USBHCDControlTransfer(0, &sSetupPacket, psDevice, pui8MaxLUN, 1,
MAX_PACKET_SIZE_EP0) != 1)
{
*pui8MaxLUN = 0;
}
}
//*****************************************************************************
//
//! This function checks if a drive is ready to be accessed.
//!
//! \param psMSCInstance is the device instance to use for this read.
//!
//! This function checks if the current device is ready to be accessed.
//! It uses the \e psMSCInstance parameter to determine which device to check
//! and returns zero when the device is ready. Any non-zero return code
//! indicates that the device was not ready.
//!
//! \return This function returns zero if the device is ready and it
//! returns a other value if the device is not ready or if an error occurred.
//
//*****************************************************************************
int32_t
USBHMSCDriveReady(tUSBHMSCInstance *psMSCInstance)
{
uint8_t ui8MaxLUN, pui8Buffer[SCSI_INQUIRY_DATA_SZ];
uint32_t ui32Size;
//
// If there is no device present then return an error.
//
if(psMSCInstance->psDevice == 0)
{
return(-1);
}
//
// Only request the maximum number of LUNs once.
//
if(g_sUSBHMSCDevice.ui32MaxLUN == 0xffffffff)
{
//
// Get the Maximum LUNs on this device.
//
USBHMSCGetMaxLUN(g_sUSBHMSCDevice.psDevice,
g_sUSBHMSCDevice.psDevice->ui32Interface, &ui8MaxLUN);
//
// Save the Maximum number of LUNs on this device.
//
g_sUSBHMSCDevice.ui32MaxLUN = ui8MaxLUN;
}
//
// Just return if the device is returning not present.
//
ui32Size = SCSI_REQUEST_SENSE_SZ;
if(USBHSCSIRequestSense(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size) != SCSI_CMD_STATUS_PASS)
{
return(-1);
}
if((pui8Buffer[SCSI_RS_SKEY] == SCSI_RS_KEY_UNIT_ATTN) &&
(pui8Buffer[SCSI_RS_SKEY_AD_SKEY] == SCSI_RS_KEY_NOTPRSNT))
{
return(-1);
}
//
// Issue a SCSI Inquiry to get basic information on the device
//
ui32Size = SCSI_INQUIRY_DATA_SZ;
if((USBHSCSIInquiry(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size) != SCSI_CMD_STATUS_PASS))
{
return(-1);
}
//
// Get the size of the drive.
//
ui32Size = SCSI_INQUIRY_DATA_SZ;
if(USBHSCSIReadCapacity(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size) != SCSI_CMD_STATUS_PASS)
{
//
// Get the current sense data from the device to see why it failed
// the Read Capacity command.
//
ui32Size = SCSI_REQUEST_SENSE_SZ;
USBHSCSIRequestSense(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size);
//
// If the read capacity failed then check if the drive is ready.
//
if(USBHSCSITestUnitReady(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe) !=
SCSI_CMD_STATUS_PASS)
{
//
// Get the current sense data from the device to see why it failed
// the Test Unit Ready command.
//
ui32Size = SCSI_REQUEST_SENSE_SZ;
USBHSCSIRequestSense(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size);
}
return(-1);
}
else
{
//
// Read the block size out, value is stored big endian.
//
psMSCInstance->ui32BlockSize =
(pui8Buffer[7] | (pui8Buffer[6] << 8) | pui8Buffer[5] << 16 |
(pui8Buffer[4] << 24));
//
// Read the block size out.
//
psMSCInstance->ui32NumBlocks =
(pui8Buffer[3] | (pui8Buffer[2] << 8) | pui8Buffer[1] << 16 |
(pui8Buffer[0] << 24));
}
//
// See if the drive is ready to use.
//
if(USBHSCSITestUnitReady(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe) !=
SCSI_CMD_STATUS_PASS)
{
//
// Get the current sense data from the device to see why it failed
// the Test Unit Ready command.
//
ui32Size = SCSI_REQUEST_SENSE_SZ;
USBHSCSIRequestSense(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, pui8Buffer,
&ui32Size);
return(-1);
}
//
// Success.
//
return(0);
}
//*****************************************************************************
//
//! This function should be called before any devices are present to enable
//! the mass storage device class driver.
//!
//! \param ui32Drive is the drive number to open.
//! \param pfnCallback is the driver callback for any mass storage events.
//!
//! This function is called to open an instance of a mass storage device. It
//! should be called before any devices are connected to allow for proper
//! notification of drive connection and disconnection. The \e ui32Drive
//! parameter is a zero based index of the drives present in the system.
//! There are a constant number of drives, and this number should only
//! be greater than 0 if there is a USB hub present in the system. The
//! application should also provide the \e pfnCallback to be notified of mass
//! storage related events like device enumeration and device removal.
//!
//! \return This function will return the driver instance to use for the other
//! mass storage functions. If there is no driver available at the time of
//! this call, this function will return zero.
//
//*****************************************************************************
tUSBHMSCInstance *
USBHMSCDriveOpen(uint32_t ui32Drive, tUSBHMSCCallback pfnCallback)
{
//
// Only the first drive is supported and only one callback is supported.
//
if((ui32Drive != 0) || (g_sUSBHMSCDevice.pfnCallback))
{
return(0);
}
//
// Save the callback.
//
g_sUSBHMSCDevice.pfnCallback = pfnCallback;
//
// Return the requested device instance.
//
return(&g_sUSBHMSCDevice);
}
//*****************************************************************************
//
//! This function should be called to release a drive instance.
//!
//! \param psMSCInstance is the device instance that is to be released.
//!
//! This function is called when an MSC drive is to be released in preparation
//! for shutdown or a switch to USB device mode, for example. Following this
//! call, the drive is available for other clients who may open it again using
//! a call to USBHMSCDriveOpen().
//!
//! \return None.
//
//*****************************************************************************
void
USBHMSCDriveClose(tUSBHMSCInstance *psMSCInstance)
{
//
// Close the drive (if it is already open)
//
USBHMSCClose((void *)psMSCInstance);
//
// Clear the callback indicating that the device is now closed.
//
psMSCInstance->pfnCallback = 0;
}
//*****************************************************************************
//
//! This function performs a block read to an MSC device.
//!
//! \param psMSCInstance is the device instance to use for this read.
//! \param ui32LBA is the logical block address to read on the device.
//! \param pui8Data is a pointer to the returned data buffer.
//! \param ui32NumBlocks is the number of blocks to read from the device.
//!
//! This function will perform a block sized read from the device associated
//! with the \e psMSCInstance parameter. The \e ui32LBA parameter specifies
//! the logical block address to read on the device. This function will only
//! perform \e ui32NumBlocks block sized reads. In most cases this is a read
//! of 512 bytes of data. The \e *pui8Data buffer should be at least
//! \e ui32NumBlocks * 512 bytes in size.
//!
//! \return The function returns zero for success and any negative value
//! indicates a failure.
//
//*****************************************************************************
int32_t
USBHMSCBlockRead(tUSBHMSCInstance *psMSCInstance, uint32_t ui32LBA,
uint8_t *pui8Data, uint32_t ui32NumBlocks)
{
uint32_t ui32Size;
//
// If there is no device present then return an error.
//
if(psMSCInstance->psDevice == 0)
{
return(-1);
}
//
// Calculate the actual byte size of the read.
//
ui32Size = psMSCInstance->ui32BlockSize * ui32NumBlocks;
//
// Perform the SCSI read command.
//
if(USBHSCSIRead10(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, ui32LBA, pui8Data,
&ui32Size, ui32NumBlocks) != SCSI_CMD_STATUS_PASS)
{
return(-1);
}
//
// Success.
//
return(0);
}
//*****************************************************************************
//
//! This function performs a block write to an MSC device.
//!
//! \param psMSCInstance is the device instance to use for this write.
//! \param ui32LBA is the logical block address to write on the device.
//! \param pui8Data is a pointer to the data to write out.
//! \param ui32NumBlocks is the number of blocks to write to the device.
//!
//! This function will perform a block sized write to the device associated
//! with the \e psMSCInstance parameter. The \e ui32LBA parameter specifies
//! the logical block address to write on the device. This function will only
//! perform \e ui32NumBlocks block sized writes. In most cases this is a write
//! of 512 bytes of data. The \e *pui8Data buffer should contain at least
//! \e ui32NumBlocks * 512 bytes in size to prevent unwanted data being written
//! to the device.
//!
//! \return The function returns zero for success and any negative value
//! indicates a failure.
//
//*****************************************************************************
int32_t
USBHMSCBlockWrite(tUSBHMSCInstance *psMSCInstance, uint32_t ui32LBA,
uint8_t *pui8Data, uint32_t ui32NumBlocks)
{
uint32_t ui32Size;
//
// If there is no device present then return an error.
//
if(psMSCInstance->psDevice == 0)
{
return(-1);
}
//
// Calculate the actual byte size of the write.
//
ui32Size = psMSCInstance->ui32BlockSize * ui32NumBlocks;
//
// Perform the SCSI write command.
//
if(USBHSCSIWrite10(psMSCInstance->ui32BulkInPipe,
psMSCInstance->ui32BulkOutPipe, ui32LBA, pui8Data,
&ui32Size, ui32NumBlocks) != SCSI_CMD_STATUS_PASS)
{
return(-1);
}
//
// Success.
//
return(0);
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbhmsc.h - Definitions for the USB MSC host driver.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHMSC_H__
#define __USBHMSC_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
typedef struct tUSBHMSCInstance tUSBHMSCInstance;
//*****************************************************************************
//
// These defines are the the events that will be passed in the \e ui32Event
// parameter of the callback from the driver.
//
//*****************************************************************************
#define MSC_EVENT_OPEN 1
#define MSC_EVENT_CLOSE 2
//*****************************************************************************
//
// The prototype for the USB MSC host driver callback function.
//
//*****************************************************************************
typedef void (*tUSBHMSCCallback)(tUSBHMSCInstance *psMSCInstance,
uint32_t ui32Event,
void *pvEventData);
//*****************************************************************************
//
// Prototypes for the USB MSC host driver APIs.
//
//*****************************************************************************
extern tUSBHMSCInstance * USBHMSCDriveOpen(uint32_t ui32Drive,
tUSBHMSCCallback pfnCallback);
extern void USBHMSCDriveClose(tUSBHMSCInstance *psMSCInstance);
extern int32_t USBHMSCDriveReady(tUSBHMSCInstance *psMSCInstance);
extern int32_t USBHMSCBlockRead(tUSBHMSCInstance *psMSCInstance,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t ui32NumBlocks);
extern int32_t USBHMSCBlockWrite(tUSBHMSCInstance *psMSCInstance,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t ui32NumBlocks);
//*****************************************************************************
//
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHMSC_H__

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//*****************************************************************************
//
// usbhost.h - Host specific definitions for the USB host library.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHOST_H__
#define __USBHOST_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_hcd
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// This is the type used to identify what the pipe is currently in use for.
//
//*****************************************************************************
#define USBHCD_PIPE_UNUSED 0x00100000
#define USBHCD_PIPE_CONTROL 0x00130000
#define USBHCD_PIPE_BULK_OUT 0x00210000
#define USBHCD_PIPE_BULK_IN 0x00220000
#define USBHCD_PIPE_INTR_OUT 0x00410000
#define USBHCD_PIPE_INTR_IN 0x00420000
#define USBHCD_PIPE_ISOC_OUT 0x00810000
#define USBHCD_PIPE_ISOC_IN 0x00820000
#define USBHCD_PIPE_ISOC_OUT_DMA 0x01810000
#define USBHCD_PIPE_ISOC_IN_DMA 0x01820000
#define USBHCD_PIPE_BULK_OUT_DMA 0x01210000
#define USBHCD_PIPE_BULK_IN_DMA 0x01220000
//*****************************************************************************
//
// These are the defines that are used with USBHCDPowerConfigInit().
//
//*****************************************************************************
#define USBHCD_FAULT_LOW 0x00000010
#define USBHCD_FAULT_HIGH 0x00000030
#define USBHCD_FAULT_VBUS_NONE 0x00000000
#define USBHCD_FAULT_VBUS_TRI 0x00000140
#define USBHCD_FAULT_VBUS_DIS 0x00000400
#define USBHCD_VBUS_MANUAL 0x00000004
#define USBHCD_VBUS_AUTO_LOW 0x00000002
#define USBHCD_VBUS_AUTO_HIGH 0x00000003
#define USBHCD_VBUS_FILTER 0x00010000
//*****************************************************************************
//
//! This macro is used to declare an instance of an Event driver for the USB
//! library.
//!
//! \param VarName is the name of the variable.
//! \param pfnOpen is the callback for the Open call to this driver. This
//! value is currently reserved and should be set to 0.
//! \param pfnClose is the callback for the Close call to this driver. This
//! value is currently reserved and should be set to 0.
//! \param pfnEvent is the callback that will be called for various USB events.
//!
//! The first parameter is the actual name of the variable that will
//! be declared by this macro. The second and third parameter are reserved
//! for future functionality and are unused and should be set to zero. The
//! last parameter is the actual callback function and is specified as
//! a function pointer of the type:
//!
//! void (*pfnEvent)(void *pvData);
//!
//! When the \e pfnEvent function is called the void pointer that is passed in
//! as a parameter should be cast to a pointer to a structure of type
//! tEventInfo. This will contain the event that caused the pfnEvent function
//! to be called.
//
//*****************************************************************************
#define DECLARE_EVENT_DRIVER(VarName, pfnOpen, pfnClose, pfnEvent) \
void IntFn(void *pvData); \
const tUSBHostClassDriver VarName = \
{ \
USB_CLASS_EVENTS, \
0, \
0, \
pfnEvent \
}
//*****************************************************************************
//
// This is the type definition a callback for events on USB Pipes allocated
// by USBHCDPipeAlloc().
//
// \param ui32Pipe is well the pipe
// \param ui32Event is well the event
//
// This prototype is used by any Pipe callbacks that are used in the host
// class drivers. These functions typically handle data events like
// USB_EVENT_RX_AVAILABLE or USB_EVENT_TX_COMPLETE but can be sent other events
// depending on the USB host class in use. See the documentation for the
// individual classes for the valid events for that class.
//
// \return None.
//
//*****************************************************************************
typedef void (* tHCDPipeCallback)(uint32_t ui32Pipe, uint32_t ui32Event);
//*****************************************************************************
//
// Predeclare the private tUSBHostDevice structure.
//
//*****************************************************************************
typedef struct tUSBHostDevice tUSBHostDevice;
//*****************************************************************************
//
//! This structure defines a USB host class driver interface, it is parsed to
//! find a USB class driver once a USB device is enumerated.
//
//*****************************************************************************
typedef struct
{
//
//! The interface class that this device class driver supports.
//
uint32_t ui32InterfaceClass;
//
//! The function is called when this class of device has been detected.
//
void *(*pfnOpen)(tUSBHostDevice *psDevice);
//
//! The function is called when the device, originally opened with a call
//! to the pfnOpen function, is disconnected.
//
void (*pfnClose)(void *pvInstance);
//
//! This is the optional interrupt handler that will be called when an
//! endpoint associated with this device instance generates an interrupt.
//
void (*pfnIntHandler)(void *pvInstance);
}
tUSBHostClassDriver;
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// If the g_USBEventDriver is included in the host controller driver list then
// this function must be provided by the application.
//
//*****************************************************************************
extern void USBHCDEvents(void *pvData);
//*****************************************************************************
//
// Prototypes for the USB Host controller APIs.
//
//*****************************************************************************
extern void USBHCDMain(void);
extern int32_t USBHCDEventEnable(uint32_t ui32Index, void *pvEventDriver,
uint32_t ui32Event);
extern int32_t USBHCDEventDisable(uint32_t ui32Index, void *pvEventDriver,
uint32_t ui32Event);
extern void USBHCDInit(uint32_t ui32Index, void *pvData,
uint32_t ui32Size);
extern void USBHCDPowerConfigInit(uint32_t ui32Index,
uint32_t ui32Flags);
extern uint32_t USBHCDPowerConfigGet(uint32_t ui32Index);
extern uint32_t USBHCDPowerConfigSet(uint32_t ui32Index,
uint32_t ui32Config);
extern uint32_t USBHCDPowerAutomatic(uint32_t ui32Index);
extern void USBHCDRegisterDrivers(uint32_t ui32Index,
const tUSBHostClassDriver * const *ppsHClassDrvrs,
uint32_t ui32NumDrivers);
extern void USBHCDTerm(uint32_t ui32Index);
extern void USBHCDSetConfig(uint32_t ui32Index, uint32_t ui32Device,
uint32_t ui32Configuration);
extern void USBHCDSetInterface(uint32_t ui32Index, uint32_t ui32Device,
uint32_t ui32Interface,
uint32_t ui32AltSetting);
extern void USBHCDSuspend(uint32_t ui32Index);
extern void USBHCDResume(uint32_t ui32Index);
extern void USBHCDReset(uint32_t ui32Index);
extern void USBHCDPipeFree(uint32_t ui32Pipe);
extern uint32_t USBHCDPipeAlloc(uint32_t ui32Index,
uint32_t ui32EndpointType,
tUSBHostDevice *psDevice,
tHCDPipeCallback pfnCallback);
extern uint32_t USBHCDPipeAllocSize(uint32_t ui32Index,
uint32_t ui32EndpointType,
tUSBHostDevice *psDevice,
uint32_t ui32FIFOSize,
tHCDPipeCallback pfnCallback);
extern uint32_t USBHCDPipeConfig(uint32_t ui32Pipe, uint32_t ui32MaxPayload,
uint32_t ui32Interval,
uint32_t ui32TargetEndpoint);
extern uint32_t USBHCDPipeStatus(uint32_t ui32Pipe);
extern uint32_t USBHCDPipeWrite(uint32_t ui32Pipe, uint8_t *pui8Data,
uint32_t ui32Size);
extern uint32_t USBHCDPipeRead(uint32_t ui32Pipe, uint8_t *pui8Data,
uint32_t ui32Size);
extern uint32_t USBHCDPipeSchedule(uint32_t ui32Pipe, uint8_t *pui8Data,
uint32_t ui32Size);
extern void USBHCDPipeDataAck(uint32_t ui32Pipe);
extern uint32_t USBHCDPipeReadNonBlocking(uint32_t ui32Pipe, uint8_t *pui8Data,
uint32_t ui32Size);
extern uint32_t USBHCDControlTransfer(uint32_t ui32Index,
tUSBRequest *psSetupPacket,
tUSBHostDevice *psDevice,
uint8_t *pui8Data, uint32_t ui32Size,
uint32_t ui32MaxPacketSize);
extern void USB0HostIntHandler(void);
extern uint8_t USBHCDDevHubPort(uint32_t ui32Instance);
extern uint8_t USBHCDDevAddress(uint32_t ui32Instance);
extern uint8_t USBHCDDevClass(uint32_t ui32Instance, uint32_t ui32Interface);
extern uint8_t USBHCDDevSubClass(uint32_t ui32Instance,
uint32_t ui32Interface);
extern uint8_t USBHCDDevProtocol(uint32_t ui32Instance,
uint32_t ui32Interface);
//*****************************************************************************
//
// The host class drivers supported by the USB library.
//
//*****************************************************************************
extern const tUSBHostClassDriver g_sUSBHostMSCClassDriver;
extern const tUSBHostClassDriver g_sUSBHIDClassDriver;
extern const tUSBHostClassDriver g_sUSBHostAudioClassDriver;
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHOST_H__

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//*****************************************************************************
//
// usbhostpriv.h - Internal header file for USB host functions.
//
// Copyright (c) 2011-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHOSTPRIV_H__
#define __USBHOSTPRIV_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// The states a hub port can be in during device connection.
//
//*****************************************************************************
typedef enum
{
//
// The port has no device connected.
//
ePortIdle,
//
// The port has a device present and is waiting for the enumeration
// sequence to begin.
//
ePortConnected,
//
// A device connection notification has been received and we have initiated
// a reset to the port. We are waiting for the reset to complete.
//
ePortResetActive,
//
// The Port reset has completed but now the hub is waiting the required
// 10ms before accessing the device.
//
ePortResetWait,
//
// A device is connected and the port has been reset. Control has been
// passed to the main host handling portion of USBLib to enumerate the
// device.
//
ePortActive,
//
// A device has completed enumeration.
//
ePortEnumerated,
//
// A device is attached to the port but enumeration failed.
//
ePortError
}
tHubPortState;
//*****************************************************************************
//
// The list of valid event flags in the g_sUSBHCD.ui32EventEnables member
// variable.
//
//*****************************************************************************
#define USBHCD_EVFLAG_SOF 0x00000001
#define USBHCD_EVFLAG_CONNECT 0x00000002
#define USBHCD_EVFLAG_UNKCNCT 0x00000004
#define USBHCD_EVFLAG_DISCNCT 0x00000008
#define USBHCD_EVFLAG_PWRFAULT 0x00000010
#define USBHCD_EVFLAG_PWRDIS 0x00000020
#define USBHCD_EVFLAG_PWREN 0x00000040
//*****************************************************************************
//
//! This is the structure that holds all of the information for devices
//! that are enumerated in the system. It is passed in to Open function of
//! USB host class drivers so that they can allocate any endpoints and parse
//! out other information that the device class needs to complete enumeration.
//
//*****************************************************************************
struct tUSBHostDevice
{
//
//! The current device address for this device.
//
uint32_t ui32Address;
//
//! The current interface for this device.
//
uint32_t ui32Interface;
//
//! A flag used to record whether this is a low-speed or a full-speed
//! device.
//
bool bLowSpeed;
//
//! A flag indicating whether or not we have read the device's
//! configuration descriptor yet.
//
bool bConfigRead;
//
//! The hub number to which this device is attached.
//
uint8_t ui8Hub;
//
//! The hub port number to which the device is attached.
//
uint8_t ui8HubPort;
//
//! The device descriptor for this device.
//
tDeviceDescriptor sDeviceDescriptor;
//
//! A pointer to the configuration descriptor for this device.
//
tConfigDescriptor *psConfigDescriptor;
//
//! The size of the buffer allocated to psConfigDescriptor.
//
uint32_t ui32ConfigDescriptorSize;
//
//! Internal flags used by the host controller driver.
//
uint32_t ui32Flags;
};
//*****************************************************************************
//
// Functions within the host controller that are called by the hub class driver
//
//*****************************************************************************
extern uint32_t USBHCDHubDeviceConnected(uint32_t ui32Index, uint8_t ui8Hub,
uint8_t ui8Port,
bool bLowSpeed);
extern void USBHCDHubDeviceDisconnected(uint32_t ui32Index,
uint32_t ui32DevIndex);
//*****************************************************************************
//
// Functions in the hub class driver that are called by the host controller.
//
//*****************************************************************************
extern void USBHHubMain(void);
extern void USBHHubInit(void);
extern void USBHHubEnumerationComplete(uint8_t ui8Hub, uint8_t ui8Port);
extern void USBHHubEnumerationError(uint8_t ui8Hub, uint8_t ui8Port);
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHOSTPRIV_H__

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//*****************************************************************************
//
// usbhscsi.c - USB host SCSI layer used by the USB host MSC driver.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "usblib/usblib.h"
#include "usblib/usbmsc.h"
#include "usblib/host/usbhost.h"
#include "usblib/host/usbhmsc.h"
#include "usblib/host/usbhscsi.h"
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// This is the data verify tag passed between requests.
//
//*****************************************************************************
#define CBW_TAG_VALUE 0x54231990
//*****************************************************************************
//
//! This function is used to issue SCSI commands via USB.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param psSCSICmd is the SCSI command structure to send.
//! \param pui8Data is pointer to the command data to be sent.
//! \param pui32Size is the number of bytes is the number of bytes expected or
//! sent by the command.
//!
//! This internal function is used to handle SCSI commands sent by other
//! functions. It serves as a layer between the SCSI command and the USB
//! interface being used to send the command. The \e pSCSI parameter contains
//! the SCSI command to send. For commands that expect data back, the
//! \e pui8Data is the buffer to store the data into and \e pui32Size is used
//! to store the amount of data to request as well as used to indicate how many
//! bytes were filled into the \e pui8Data buffer on return. For commands that
//! are sending data, \e pui8Data is the data to be sent and \e pui32Size is
//! the number of bytes to send.
//!
//! \return This function returns the SCSI status from the command. The value
//! will be either \b SCSI_CMD_STATUS_PASS or \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
static uint32_t
USBHSCSISendCommand(uint32_t ui32InPipe, uint32_t ui32OutPipe,
tMSCCBW *psSCSICmd, uint8_t *pui8Data, uint32_t *pui32Size)
{
tMSCCSW sCmdStatus;
uint32_t ui32Bytes;
//
// Initialize the command status.
//
sCmdStatus.dCSWSignature = 0;
sCmdStatus.dCSWTag = 0;
sCmdStatus.bCSWStatus = SCSI_CMD_STATUS_FAIL;
//
// Set the CBW signature and tag.
//
psSCSICmd->dCBWSignature = CBW_SIGNATURE;
psSCSICmd->dCBWTag = CBW_TAG_VALUE;
//
// Set the size of the data to be returned by the device.
//
psSCSICmd->dCBWDataTransferLength = *pui32Size;
//
// Send the command.
//
ui32Bytes = USBHCDPipeWrite(ui32OutPipe, (uint8_t*)psSCSICmd,
sizeof(tMSCCBW));
//
// If no bytes went out then the command failed.
//
if(ui32Bytes == 0)
{
return(SCSI_CMD_STATUS_FAIL);
}
//
// Only request data if there is data to request.
//
if(psSCSICmd->dCBWDataTransferLength != 0)
{
//
// See if this is a read or a write.
//
if(psSCSICmd->bmCBWFlags & CBWFLAGS_DIR_IN)
{
//
// Read the data back.
//
*pui32Size = USBHCDPipeRead(ui32InPipe, pui8Data, *pui32Size);
}
else
{
//
// Write the data out.
//
*pui32Size = USBHCDPipeWrite(ui32OutPipe, pui8Data, *pui32Size);
}
}
//
// Get the status of the command.
//
ui32Bytes = USBHCDPipeRead(ui32InPipe, (uint8_t *)&sCmdStatus,
sizeof(tMSCCSW));
//
// If the status was invalid or did not have the correct signature then
// indicate a failure.
//
if((ui32Bytes == 0) || (sCmdStatus.dCSWSignature != CSW_SIGNATURE) ||
(sCmdStatus.dCSWTag != CBW_TAG_VALUE))
{
return(SCSI_CMD_STATUS_FAIL);
}
//
// Return the status.
//
return((uint32_t)sCmdStatus.bCSWStatus);
}
//*****************************************************************************
//
//! This will issue the SCSI inquiry command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param pui8Data is the data buffer to return the results into.
//! \param pui32Size is the size of buffer that was passed in on entry and the
//! number of bytes returned.
//!
//! This function should be used to issue a SCSI Inquiry command to a mass
//! storage device. To allow for multiple devices, the \e ui32InPipe and
//! \e ui32OutPipe parameters indicate which USB pipes to use for this call.
//!
//! \note The \e pui8Data buffer pointer should have at least
//! \b SCSI_INQUIRY_DATA_SZ bytes of data or this function will overflow the
//! buffer.
//!
//! \return This function returns the SCSI status from the command. The value
//! will be either \b SCSI_CMD_STATUS_PASS or \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIInquiry(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// The number of bytes of data that the host expects to transfer on the
// Bulk-In or Bulk-Out endpoint (as indicated by the Direction bit) during
// the execution of this command. If this field is zero, the device and
// the host shall transfer no data between the CBW and the associated CSW,
// and the device shall ignore the value of the Direction bit in
// bmCBWFlags.
//
*pui32Size = SCSI_INQUIRY_DATA_SZ;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// This is the length of the command itself.
//
sSCSICmd.bCBWCBLength = 6;
//
// Send Inquiry command with no request for vital product data.
//
pui32Data[0] = SCSI_INQUIRY_CMD;
//
// Allocation length.
//
pui32Data[1] = SCSI_INQUIRY_DATA_SZ;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This will issue the SCSI read capacity command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param pui8Data is the data buffer to return the results into.
//! \param pui32Size is the size of buffer that was passed in on entry and the
//! number of bytes returned.
//!
//! This function should be used to issue a SCSI Read Capacity command
//! to a mass storage device that is connected. To allow for multiple devices,
//! the \e ui32InPipe and \e ui32OutPipe parameters indicate which USB pipes to
//! use for this call.
//!
//! \note The \e pui8Data buffer pointer should have at least
//! \b SCSI_READ_CAPACITY_SZ bytes of data or this function will overflow the
//! buffer.
//!
//! \return This function returns the SCSI status from the command. The value
//! will be either \b SCSI_CMD_STATUS_PASS or \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIReadCapacity(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// Set the size of the command data.
//
*pui32Size = SCSI_READ_CAPACITY_SZ;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the length of the command itself.
//
sSCSICmd.bCBWCBLength = 12;
//
// Only use the first byte and set it to the Read Capacity command. The
// rest are set to 0.
//
pui32Data[0] = SCSI_READ_CAPACITY;
pui32Data[1] = 0;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This will issue the SCSI read capacities command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param pui8Data is the data buffer to return the results into.
//! \param pui32Size is the size of buffer that was passed in on entry and the
//! number of bytes returned.
//!
//! This function should be used to issue a SCSI Read Capacities command
//! to a mass storage device that is connected. To allow for multiple devices,
//! the \e ui32InPipe and \e ui32OutPipe parameters indicate which USB pipes to
//! use for this call.
//!
//! \return This function returns the SCSI status from the command. The value
//! will be either \b SCSI_CMD_STATUS_PASS or \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIReadCapacities(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the length of the command itself.
//
sSCSICmd.bCBWCBLength = 12;
//
// Only use the first byte and set it to the Read Capacity command. The
// rest are set to 0.
//
pui32Data[0] = SCSI_READ_CAPACITIES;
pui32Data[1] = 0;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This will issue the SCSI Mode Sense(6) command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param ui32Flags is a combination of flags defining the exact query that is
//! to be made.
//! \param pui8Data is the data buffer to return the results into.
//! \param pui32Size is the size of the buffer on entry and number of bytes
//! read on exit.
//!
//! This function should be used to issue a SCSI Mode Sense(6) command
//! to a mass storage device. To allow for multiple devices,the \e ui32InPipe
//! and \e ui32OutPipe parameters indicate which USB pipes to use for this
//! call. The call will return at most the number of bytes in the \e pui32Size
//! parameter, however it can return less and change the \e pui32Size parameter
//! to the number of valid bytes in the \e *pui32Size buffer.
//!
//! The \e ui32Flags parameter is a combination of the following three sets of
//! definitions:
//!
//! One of the following values must be specified:
//!
//! - \b SCSI_MS_PC_CURRENT request for current settings.
//! - \b SCSI_MS_PC_CHANGEABLE request for changeable settings.
//! - \b SCSI_MS_PC_DEFAULT request for default settings.
//! - \b SCSI_MS_PC_SAVED request for the saved values.
//!
//! One of these following values must also be specified to determine the page
//! code for the request:
//!
//! - \b SCSI_MS_PC_VENDOR is the vendor specific page code.
//! - \b SCSI_MS_PC_DISCO is the disconnect/reconnect page code.
//! - \b SCSI_MS_PC_CONTROL is the control page code.
//! - \b SCSI_MS_PC_LUN is the protocol specific LUN page code.
//! - \b SCSI_MS_PC_PORT is the protocol specific port page code.
//! - \b SCSI_MS_PC_POWER is the power condition page code.
//! - \b SCSI_MS_PC_INFORM is the informational exceptions page code.
//! - \b SCSI_MS_PC_ALL will request all pages codes supported by the device.
//!
//! The last value is optional and supports the following global flag:
//! - \b SCSI_MS_DBD disables returning block descriptors.
//!
//! Example: Request for all current settings.
//!
//! \verbatim
//! SCSIModeSense6(ui32InPipe, ui32OutPipe,
//! SCSI_MS_PC_CURRENT | SCSI_MS_PC_ALL,
//! pui8Data, pui32Size);
//! \endverbatim
//!
//! \return This function returns the SCSI status from the command. The value
//! will be either \b SCSI_CMD_STATUS_PASS or \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIModeSense6(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32Flags, uint8_t *pui8Data,
uint32_t *pui32Size)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the size of the command data.
//
sSCSICmd.bCBWCBLength = 6;
//
// Set the options for the Mode Sense Command (6).
//
pui32Data[0] = (SCSI_MODE_SENSE_6 | ui32Flags);
pui32Data[1] = (uint8_t)*pui32Size;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This function issues a SCSI Test Unit Ready command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//!
//! This function is used to issue a SCSI Test Unit Ready command to a device.
//! This call will simply return the results of issuing this command.
//!
//! \return This function returns the results of the SCSI Test Unit Ready
//! command. The value will be either \b SCSI_CMD_STATUS_PASS or
//! \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSITestUnitReady(uint32_t ui32InPipe, uint32_t ui32OutPipe)
{
tMSCCBW sSCSICmd;
uint32_t ui32Size;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// No data in this command.
//
ui32Size = 0;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the size of the command data.
//
sSCSICmd.bCBWCBLength = 6;
//
// Set the parameter options.
//
pui32Data[0] = SCSI_TEST_UNIT_READY;
pui32Data[1] = 0;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, 0,
&ui32Size));
}
//*****************************************************************************
//
//! This function issues a SCSI Request Sense command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param pui8Data is the data buffer to return the results into.
//! \param pui32Size is the size of the buffer on entry and number of bytes
//! read on exit.
//!
//! This function is used to issue a SCSI Request Sense command to a device.
//! It will return the data in the buffer pointed to by \e pui8Data. The
//! parameter \e pui32Size should have the allocation size in bytes of the
//! buffer pointed to by \e pui8Data.
//!
//! \return This function returns the results of the SCSI Request Sense
//! command. The value will be either \b SCSI_CMD_STATUS_PASS or
//! \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIRequestSense(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the size of the command data.
//
sSCSICmd.bCBWCBLength = 12;
//
// Set the parameter options.
//
pui32Data[0] = SCSI_REQUEST_SENSE;
pui32Data[1] = 18;
pui32Data[2] = 0;
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This function issues a SCSI Read(10) command to a device.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param ui32LBA is the logical block address to read.
//! \param pui8Data is the data buffer to return the data.
//! \param pui32Size is the size of the buffer on entry and number of bytes
//! read on exit.
//! \param ui32NumBlocks is the number of contiguous blocks to read from the
//! device.
//!
//! This function is used to issue a SCSI Read(10) command to a device. The
//! \e ui32LBA parameter specifies the logical block address to read from the
//! device. The data from this block will be returned in the buffer pointed to
//! by \e pui8Data. The parameter \e pui32Size should indicate enough space to
//! hold a full block size, or only the first \e pui32Size bytes of the LBA are
//! returned.
//!
//! \return This function returns the results of the SCSI Read(10) command.
//! The value will be either \b SCSI_CMD_STATUS_PASS or
//! \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIRead10(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t *pui32Size, uint32_t ui32NumBlocks)
{
tMSCCBW sSCSICmd;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_IN;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the size of the command data.
//
sSCSICmd.bCBWCBLength = 10;
//
// Set the parameter options.
//
sSCSICmd.CBWCB[0] = SCSI_READ_10;
//
// Clear the reserved field.
//
sSCSICmd.CBWCB[1] = 0;
//
// LBA starts at offset 2.
//
sSCSICmd.CBWCB[2] = (uint8_t)(ui32LBA >> 24);
sSCSICmd.CBWCB[3] = (uint8_t)(ui32LBA >> 16);
sSCSICmd.CBWCB[4] = (uint8_t)(ui32LBA >> 8);
sSCSICmd.CBWCB[5] = (uint8_t)ui32LBA;
//
// Clear the reserved field.
//
sSCSICmd.CBWCB[6] = 0;
//
// Transfer length in blocks starts at offset 2.
// This also sets the Control value to 0 at offset 9.
//
sSCSICmd.CBWCB[7] = (ui32NumBlocks & 0xFF00) >> 8;
*((uint32_t *)&sSCSICmd.CBWCB[8]) = (ui32NumBlocks & 0xFF);
*((uint32_t *)&sSCSICmd.CBWCB[12]) = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
//! This function issues a SCSI Write(10) command to a device.
//!
//! This function is used to issue a SCSI Write(10) command to a device. The
//! \e ui32LBA parameter specifies the logical block address on the device.
//! The data to write to this block should be in the buffer pointed to by
//! \e pui8Data parameter. The parameter \e pui32Size should indicate the
//! amount of data to write to the specified LBA.
//!
//! \param ui32InPipe is the USB IN pipe to use for this command.
//! \param ui32OutPipe is the USB OUT pipe to use for this command.
//! \param ui32LBA is the logical block address to read.
//! \param pui8Data is the data buffer to write out.
//! \param pui32Size is the size of the buffer.
//! \param ui32NumBlocks is the number of contiguous blocks to write to the
//! device.
//!
//! \return This function returns the results of the SCSI Write(10) command.
//! The value will be either \b SCSI_CMD_STATUS_PASS or
//! \b SCSI_CMD_STATUS_FAIL.
//
//*****************************************************************************
uint32_t
USBHSCSIWrite10(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t *pui32Size, uint32_t ui32NumBlocks)
{
tMSCCBW sSCSICmd;
uint32_t *pui32Data;
//
// Create a local 32-bit pointer to the command.
//
pui32Data = (uint32_t *)sSCSICmd.CBWCB;
//
// This is an IN request.
//
sSCSICmd.bmCBWFlags = CBWFLAGS_DIR_OUT;
//
// Only handle LUN 0.
//
sSCSICmd.bCBWLUN = 0;
//
// Set the size of the command data.
//
sSCSICmd.bCBWCBLength = 10;
//
// Set the parameter options.
//
sSCSICmd.CBWCB[0] = SCSI_WRITE_10;
//
// Clear the reserved field.
//
sSCSICmd.CBWCB[1] = 0;
//
// LBA starts at offset 2.
//
sSCSICmd.CBWCB[2] = (uint8_t)(ui32LBA >> 24);
sSCSICmd.CBWCB[3] = (uint8_t)(ui32LBA >> 16);
sSCSICmd.CBWCB[4] = (uint8_t)(ui32LBA >> 8);
sSCSICmd.CBWCB[5] = (uint8_t)ui32LBA;
//
// Clear the reserved field.
//
sSCSICmd.CBWCB[6] = 0;
//
// Set the transfer length in blocks.
// This also sets the Control value to 0 at offset 9.
//
sSCSICmd.CBWCB[7] = (ui32NumBlocks & 0xFF00) >> 8;
//
// The blocks go into is byte offset 8 or word address 2.
//
pui32Data[2] = (ui32NumBlocks & 0xFF);
//
// The blocks go into is byte offset 12 or word address 3.
//
pui32Data[3] = 0;
//
// Send the command and get the results.
//
return(USBHSCSISendCommand(ui32InPipe, ui32OutPipe, &sSCSICmd, pui8Data,
pui32Size));
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbhscsi.h - Definitions for the USB host SCSI layer.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHSCSI_H__
#define __USBHSCSI_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_host_class
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Prototypes for the APIs exported by the USB SCSI layer.
//
//*****************************************************************************
extern uint32_t USBHSCSIInquiry(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Buffer, uint32_t *pui32Size);
extern uint32_t USBHSCSIReadCapacity(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size);
extern uint32_t USBHSCSIReadCapacities(uint32_t ui32InPipe,
uint32_t ui32OutPipe, uint8_t *pui8Data,
uint32_t *pui32Size);
extern uint32_t USBHSCSIModeSense6(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32Flags, uint8_t *pui8Data,
uint32_t *pui32Size);
extern uint32_t USBHSCSITestUnitReady(uint32_t ui32InPipe,
uint32_t ui32OutPipe);
extern uint32_t USBHSCSIRequestSense(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint8_t *pui8Data, uint32_t *pui32Size);
extern uint32_t USBHSCSIRead10(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t *pui32Size, uint32_t ui32NumBlocks);
extern uint32_t USBHSCSIWrite10(uint32_t ui32InPipe, uint32_t ui32OutPipe,
uint32_t ui32LBA, uint8_t *pui8Data,
uint32_t *pui32Size, uint32_t ui32NumBlocks);
//*****************************************************************************
//
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHSCSI_H__

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This project will build the Tiva USB Library.
-------------------------------------------------------------------------------
Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
Software License Agreement
Texas Instruments (TI) is supplying this software for use solely and
exclusively on TI's microcontroller products. The software is owned by
TI and/or its suppliers, and is protected under applicable copyright
laws. You may not combine this software with "viral" open-source
software in order to form a larger program.
THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, FOR ANY REASON WHATSOEVER.
This is part of revision 1.1 of the Tiva USB Library.

55
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//*****************************************************************************
//
// usb-ids.h - Definitions of VIDs and PIDs used by USB library.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBIDS_H__
#define __USBIDS_H__
//*****************************************************************************
//
// TI Vendor ID for devices that use VID as 0x1CBE.
//
//*****************************************************************************
#define USB_VID_TI_1CBE 0x1cbe
//*****************************************************************************
//
// Product IDs.
//
//*****************************************************************************
#define USB_PID_MOUSE 0x0000
#define USB_PID_KEYBOARD 0x0001
#define USB_PID_SERIAL 0x0002
#define USB_PID_BULK 0x0003
#define USB_PID_SCOPE 0x0004
#define USB_PID_MSC 0x0005
#define USB_PID_AUDIO 0x0006
#define USB_PID_COMP_SERIAL 0x0007
#define USB_PID_COMP_AUDIO_HID 0x0008
#define USB_PID_COMP_HID_SER 0x0009
#define USB_PID_COMP_HID_DFU 0x000A
#define USB_PID_DATA_LOGGER 0x000B
#define USB_PID_COMP_HID_HID 0x000D
#define USB_PID_DFU 0x00FF
#endif /* __USBIDS_H__ */

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//*****************************************************************************
//
// usbaudio.h - Definitions used by Audio Class devices.
//
// Copyright (c) 2009-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBAUDIO_H__
#define __USBAUDIO_H__
//*****************************************************************************
//
// Standard Audio descriptor sub types.
//
//*****************************************************************************
#define USB_AI_UNDEFINED 0
#define USB_AI_HEADER 1
#define USB_AI_INPUT_TERMINAL 2
#define USB_AI_OUTPUT_TERMINAL 3
#define USB_AI_MIXER_UNIT 4
#define USB_AI_SELECTOR_UNIT 5
#define USB_AI_FEATURE_UNIT 6
#define USB_AI_PROCESSING_UNIT 7
#define USB_AI_EXTENSION_UNIT 8
//*****************************************************************************
//
// Standard Audio Streaming Interface descriptor types.
//
//*****************************************************************************
#define USB_AS_UNDEFINED 0
#define USB_AS_GENERAL 1
#define USB_AS_FORMAT_TYPE 2
#define USB_AS_FORMAT_SPECIFIC 3
//*****************************************************************************
//
// Standard USB terminal types used with audio terminal descriptors. These
// are defined in the "Universal Serial Bus Device Class Definition for
// Terminal Types" version 1.0 released March 18, 1998.
//
//*****************************************************************************
#define USB_TTYPE_UNDEFINED 0x0100
#define USB_TTYPE_STREAMING 0x0101
#define USB_TTYPE_VENDOR 0x01ff
#define USB_TTYPE_OUT_UNDEF 0x0300
#define USB_TTYPE_OUT_SPEAKER 0x0301
#define USB_TTYPE_OUT_HEADPHONE 0x0302
#define USB_TTYPE_OUT_DESK_SPKR 0x0304
#define USB_TTYPE_OUT_ROOM_SPKR 0x0305
#define USB_TTYPE_OUT_COMM_SPKR 0x0306
#define USB_TTYPE_OUT_LFE 0x0307
#define USB_TTYPE_EXT_UNDEF 0x0600
#define USB_TTYPE_EXT_ANALOG 0x0601
#define USB_TTYPE_EXT_DIGITAL 0x0602
#define USB_TTYPE_EXT_LINE 0x0603
#define USB_TTYPE_EXT_LEGACY 0x0604
#define USB_TTYPE_EXT_SPDIF 0x0605
#define USB_TTYPE_EXT_1394_DA 0x0606
#define USB_TTYPE_EXT_1394_DV 0x0607
//*****************************************************************************
//
// Audio Interface Subclass Codes
//
//*****************************************************************************
#define USB_ASC_UNDEFINED 0x00
#define USB_ASC_AUDIO_CONTROL 0x01
#define USB_ASC_AUDIO_STREAMING 0x02
#define USB_ASC_MIDI_STREAMING 0x03
//*****************************************************************************
//
// Audio Class-Specific Descriptor Types
// (Table A-4)
//
//*****************************************************************************
#define USB_ACSDT_UNDEFINED 0x20
#define USB_ACSDT_DEVICE 0x21
#define USB_ACSDT_CONFIGURATION 0x22
#define USB_ACSDT_STRING 0x23
#define USB_ACSDT_INTERFACE 0x24
#define USB_ACSDT_ENDPOINT 0x25
//*****************************************************************************
//
// Audio Class-Specific AC Interface Descriptor Subtypes
// (Table A-5)
//
//*****************************************************************************
#define USB_ACDSTYPE_UNDEFINED 0x00
#define USB_ACDSTYPE_HEADER 0x01
#define USB_ACDSTYPE_IN_TERMINAL 0x02
#define USB_ACDSTYPE_OUT_TERMINAL 0x03
#define USB_ACDSTYPE_MIXER_UNIT 0x04
#define USB_ACDSTYPE_SELECTOR_UNIT 0x05
#define USB_ACDSTYPE_FEATURE_UNIT 0x06
#define USB_ACDSTYPE_PROCESSING_UNIT 0x07
#define USB_ACDSTYPE_EXTENSION_UNIT 0x08
//*****************************************************************************
//
// Audio Class-Specific AS Interface Descriptor Subtypes
// (Table A-6)
//
//*****************************************************************************
#define USB_ASDSTYPE_UNDEFINED 0x00
#define USB_ASDSTYPE_GENERAL 0x01
#define USB_ASDSTYPE_FORMAT_TYPE 0x02
#define USB_ASDSTYPE_FORMAT_SPECIFIC 0x03
//*****************************************************************************
//
// Audio Data Format Type I Codes.
//
//*****************************************************************************
#define USB_ADF_UNDEFINED 0x0000
#define USB_ADF_PCM 0x0001
#define USB_ADF_PCM8 0x0002
#define USB_ADF_IEEE_FLOAT 0x0003
#define USB_ADF_ALAW 0x0004
#define USB_ADF_MULAW 0x0005
//*****************************************************************************
//
// Audio Format Type Codes
//
//*****************************************************************************
#define USB_AF_TYPE_UNDEFINED 0x00
#define USB_AF_TYPE_TYPE_I 0x01
#define USB_AF_TYPE_TYPE_II 0x02
#define USB_AF_TYPE_TYPE_III 0x03
//*****************************************************************************
//
// Audio Class-Specific controls used with bmaControls values.
//
//*****************************************************************************
#define USB_ACONTROL_MUTE 0x0001 // Mute
#define USB_ACONTROL_VOLUME 0x0002 // Volume
#define USB_ACONTROL_BASS 0x0004 // Bass
#define USB_ACONTROL_MID 0x0008 // Mid
#define USB_ACONTROL_TREBLE 0x0010 // Treble
#define USB_ACONTROL_EQ 0x0020 // Graphic Equalizer
#define USB_ACONTROL_AGC 0x0040 // Automatic Gain
#define USB_ACONTROL_DELAY 0x0080 // Delay
#define USB_ACONTROL_BASS_BOOST 0x0100 // Bass Boost
#define USB_ACONTROL_LOUD 0x0200 // Loudness
//*****************************************************************************
//
// Audio Class-Specific Output terminal types.
//
//*****************************************************************************
#define USB_ATTYPE_UNDEFINED 0x0300 // Output Terminal, undefined Type.
#define USB_ATTYPE_SPEAKER 0x0301 // A generic speaker.
#define USB_ATTYPE_HEADPHONES 0x0302 // A head-mounted audio output device.
#define USB_ATTYPE_HMD 0x0303 // The audio part of a VR head mounted
// display.
#define USB_ATTYPE_SPEAKER_DT 0x0304 // Desktop or Monitor speaker(s).
#define USB_ATTYPE_SPEAKER_RM 0x0305 // Larger room speaker(s).
#define USB_ATTYPE_SPEAKER_COM 0x0306 // Communications Speaker (phone).
#define USB_ATTYPE_SPEAKER_LFE 0x0307 // Speaker designed for low
// frequencies.
//*****************************************************************************
//
// USB Audio channel configuration bits for wChannelConfig values.
// wChannelConfig: a bit field that indicates which spatial locations are
// present in the cluster. The bit allocations are as follows:
//
//*****************************************************************************
#define USB_CHANNEL_L 0x0001 // Left Front (L)
#define USB_CHANNEL_R 0x0002 // Right Front (R)
#define USB_CHANNEL_C 0x0004 // Center Front (C)
#define USB_CHANNEL_LFE 0x0008 // Low Frequency Enhancement (LFE)
#define USB_CHANNEL_LS 0x0010 // Left Surround (LS)
#define USB_CHANNEL_RS 0x0020 // Right Surround (RS)
#define USB_CHANNEL_LC 0x0040 // Left of Center (LC)
#define USB_CHANNEL_RC 0x0080 // Right of Center (RC)
#define USB_CHANNEL_S 0x0100 // Surround (S)
#define USB_CHANNEL_SL 0x0200 // Side Left (SL)
#define USB_CHANNEL_SR 0x0400 // Side Right (SR)
#define USB_CHANNEL_T 0x0800 // Top (T)
//*****************************************************************************
//
// Endpoint attributes for Audio Class General type.
//
//*****************************************************************************
#define USB_EP_ATTR_ACG_SAMPLING 0x01 // Sampling Frequency
#define USB_EP_ATTR_ACG_PITCH 0x02 // Pitch
#define USB_EP_ATTR_ACG_MAXPACKET 0x80 // MaxPacketsOnly
//*****************************************************************************
//
// Indicates the units used for the wLockDelay field for Audio Class General
// type.
//
//*****************************************************************************
#define USB_EP_LOCKDELAY_UNDEF 0x00 // Undefined
#define USB_EP_LOCKDELAY_MS 0x01 // Milliseconds
#define USB_EP_LOCKDELAY_PCM 0x02 // Decoded PCM samples
//*****************************************************************************
//
// Audio Class-Specific Request Codes
//
//*****************************************************************************
#define USB_AC_SET_CUR 0x01
#define USB_AC_SET_MIN 0x02
#define USB_AC_SET_MAX 0x03
#define USB_AC_SET_RES 0x04
#define USB_AC_SET_MEM 0x05
#define USB_AC_GET_CUR 0x81
#define USB_AC_GET_MIN 0x82
#define USB_AC_GET_MAX 0x83
#define USB_AC_GET_RES 0x84
#define USB_AC_GET_MEM 0x85
#define USB_AC_GET_STAT 0xff
#define USB_CS_CONTROL_M 0xff00
#define USB_CS_CHANNEL_M 0x00ff
//*****************************************************************************
//
// Endpoint Control Selectors
//
//*****************************************************************************
#define EP_CONTROL_UNDEFINED 0x0000
#define SAMPLING_FREQ_CONTROL 0x0100
#define PITCH_CONTROL 0x0200
//*****************************************************************************
//
// Feature Unit Control Selectors
//
//*****************************************************************************
#define FU_CONTROL_UNDEFINED 0x0000
#define MUTE_CONTROL 0x0100
#define VOLUME_CONTROL 0x0200
#define BASS_CONTROL 0x0300
#define MID_CONTROL 0x0400
#define TREBLE_CONTROL 0x0500
#define EQUALIZER_CONTROL 0x0600
#define AUTOMATIC_GAIN_CONTROL 0x0700
#define DELAY_CONTROL 0x0800
#define BASS_BOOST_CONTROL 0x0900
#define LOUDNESS_CONTROL 0x0A00
//*****************************************************************************
//
// All structures defined in this section of the header require byte packing of
// fields. This is usually accomplished using the PACKED macro but, for IAR
// Embedded Workbench, this requires a pragma.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack(1)
#endif
//*****************************************************************************
//
//! This structure describes the Class-Specific Audio Class Interface Header
//! Descriptor as defined in Universal Serial Bus Device Class Definition
//! for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_DSUBTYPE_HEADER for the header.
//
uint8_t bDescriptorSubtype;
//
//! Audio Device Class Specification Release Number in Binary-Coded
//! Decimal.
//
uint16_t bcdADC;
//
//! Total number of bytes returned for the class-specific AudioControl
//! interface descriptor. Includes the combined length of this descriptor
//! header and all Unit and Terminal descriptors.
//
uint16_t wTotai32Length;
//
//! The number of AudioStreaming and MIDIStreaming interfaces in the Audio
//! Interface Collection to which this AudioControl interface belongs.
//
uint8_t bInCollection;
//
//! Interface number of the first AudioStreaming or MIDIStreaming interface
//! in the Collection.
//
uint8_t baInterfaceNr;
}
PACKED tACHeader;
//*****************************************************************************
//
// These are the possible bits set in the tACInputTerminal.wChannelConfig
// value.
//
//*****************************************************************************
#define USB_AC_CC_LEFT 0x0001
#define USB_AC_CC_RIGHT 0x0002
#define USB_AC_CC_CENTER 0x0004
#define USB_AC_CC_LFE 0x0008
#define USB_AC_CC_LEFTSURROUND 0x0010
#define USB_AC_CC_RIGHTSURROUND 0x0020
#define USB_AC_CC_LEFT_CENTER 0x0040
#define USB_AC_CC_RIGHT_CENTER 0x0080
#define USB_AC_CC_SURROUND 0x0100
#define USB_AC_CC_SIDE_LEFT 0x0200
#define USB_AC_CC_SIDE_RIGHT 0x0400
#define USB_AC_CC_TOP 0x0800
//*****************************************************************************
//
//! This structure describes the Feature Unit Descriptor as defined in
//! Universal Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_DSUBTYPE_IN_TERM for the header.
//
uint8_t bDescriptorSubtype;
//
//! Constant uniquely identifying the Unit within the audio function. This
//! value is used in all requests to address this Unit.
//
uint8_t bUnitID;
//
//! ID of the Unit or Terminal to which this Feature Unit is connected.
//
uint8_t bSourceID;
//
//! ID of the Output Terminal to which this Input Terminal is associated.
//
uint8_t bControlSize;
//
//! A bit set to 1 indicates that the mentioned Control is supported for
//! a given channel. See the USB_FU_* defines for the bit definitions.
//! This actually an array of elements of size bControlSize so be
//! careful when using this value directly.
//
uint16_t bmaControls;
}
PACKED tACFeatureUnit;
//*****************************************************************************
//
//! This structure describes the Output Terminal Descriptor as defined in
//! Universal Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_DSUBTYPE_OUT_TERM for the header.
//
uint8_t bDescriptorSubtype;
//
//! Constant uniquely identifying the Terminal within the audio function.
//! This value is used in all requests to address this Terminal.
//
uint8_t bTerminalID;
//
//! Constant characterizing the type of Terminal. See USB Audio Terminal
//! Types.
//
uint16_t wTerminalType;
//
//! Constant, identifying the Input Terminal to which this Output Terminal
//! is associated.
//
uint8_t bAssocTerminal;
//
//! ID of the Unit or Terminal to which this Terminal is connected.
//
uint8_t bSourceID;
//
//! Index of a string descriptor, describing the Output Terminal.
//
uint8_t iTerminal;
}
PACKED tACOutputTerminal;
//*****************************************************************************
//
//! This structure describes the Input Terminal Descriptor as defined in
//! Universal Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_DSUBTYPE_OUT_TERM for the header.
//
uint8_t bDescriptorSubtype;
//
//! Constant uniquely identifying the Terminal within the audio function.
//! This value is used in all requests to address this Terminal.
//
uint8_t bTerminalID;
//
//! Constant characterizing the type of Terminal. See USB Audio Terminal
//! Types.
//
uint16_t wTerminalType;
//
//! Constant, identifying the Input Terminal to which this Output Terminal
//! is associated.
//
uint8_t bAssocTerminal;
//
//! Number of logical output channels in the Terminal's output audio
//! channel cluster.
//
uint8_t bNrChannels;
//
//! Describes the spatial location of the logical channels.
//
uint16_t wChannelConfig;
//
//! Index of a string descriptor, describing the name of the first logical
//! channel.
//
uint8_t iChannelNames;
//
//! Index of a string descriptor, describing the Output Terminal.
//
uint8_t iTerminal;
}
PACKED tACInputTerminal;
//*****************************************************************************
//
//! This structure describes the Mixer Descriptor as defined in Universal
//! Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_AI_MIXER_UNIT for the header.
//
uint8_t bDescriptorSubtype;
//
//! Constant uniquely identifying the Unit within the audio function. This
//! value is used in all requests to address this Unit.
//
uint8_t bUnitID;
//
//! Number of Input Pins of this Unit.
//
uint8_t bNrInPins;
//
//! ID of the Unit or Terminal to which the first Input Pin of this Mixer
//! Unit is connected.
//
uint8_t baSourceID;
}
PACKED tACMixer;
//*****************************************************************************
//
//! This structure describes the Selector Descriptor as defined in Universal
//! Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_AI_MIXER_UNIT for the header.
//
uint8_t bDescriptorSubtype;
//
//! Constant uniquely identifying the Unit within the audio function. This
//! value is used in all requests to address this Unit.
//
uint8_t bUnitID;
//
//! Number of Input Pins of this Unit.
//
uint8_t bNrInPins;
//
//! ID of the Unit or Terminal to which the first Input Pin of this Mixer
//! Unit is connected.
//
uint8_t baSourceID;
}
PACKED tACSelector;
//*****************************************************************************
//
//! This structure describes the Output Terminal Descriptor as defined in
//! Universal Serial Bus Device Class Definition for Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_DSUBTYPE_GENERAL for the header.
//
uint8_t bDescriptorSubtype;
//
//! The Terminal ID of the Terminal to which the endpoint of this
//! interface is connected.
//
uint8_t bTerminalLink;
//
//! Delay introduced by the data path. Expressed in number of frames.
//
uint8_t bDelay;
//
//! The Audio Data Format that has to be used to communicate with this
//! interface.
//
uint16_t wFormatTag;
}
PACKED tACGeneral;
//*****************************************************************************
//
//! This structure describes the Type I Audio format descriptors defined in
//! USB Audio Devices Release 1.0.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For an interface descriptor, this will
//! be USB_DTYPE_CS_INTERFACE (36).
//
uint8_t bDescriptorType;
//
//! This will be USB_AS_FORMAT_TYPE.
//
uint8_t bDescriptorSubtype;
//
//! This will be USB_AS_FORMAT_TYPE_I.
//
uint8_t bFormatType;
//
//! Number of channels on this streaming interface.
//
uint8_t bNrChannels;
//
//! Number of bytes per audio sub-frame or channel.
//
uint8_t bSubFrameSize;
//
//! Number of bits per sample.
//
uint8_t bBitResolution;
//
//! Number of sample rates that are supported.
//
uint8_t bSamFreqType;
//
//! Number of bits per sample.
//
uint8_t tSamFreq;
}
PACKED tASFormat;
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
#endif

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//*****************************************************************************
//
// usbhid.h - Definitions used by Communication Device Class devices.
//
// Copyright (c) 2007-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
//*****************************************************************************
//
// Note: This header contains definitions related to the USB Communication
// Device Class specification. The header is complete for ACM model
// devices but request and notification definitions specific to other
// modem types, ISDN, ATM and Ethernet are currently incomplete or
// omitted.
//
//*****************************************************************************
#ifndef __USBCDC_H__
#define __USBCDC_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup cdc_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Generic macros to read an 8-bit, 16-bit or 32-bit value from a character
// pointer.
//
//*****************************************************************************
#define BYTE(pui8Data) (*(uint8_t *)(pui8Data))
#define SHORT(pui8Data) (*(uint16_t *)(pui8Data))
#define LONG(pui8Data) (*(uint32_t *)(pui8Data))
//*****************************************************************************
//
// USB CDC subclass codes. Used in interface descriptor, bInterfaceClass
//
//*****************************************************************************
#define USB_CDC_SUBCLASS_DIRECT_LINE_MODEL \
0x01
#define USB_CDC_SUBCLASS_ABSTRACT_MODEL \
0x02
#define USB_CDC_SUBCLASS_TELEPHONE_MODEL \
0x03
#define USB_CDC_SUBCLASS_MULTI_CHANNEL_MODEL \
0x04
#define USB_CDC_SUBCLASS_CAPI_MODEL \
0x05
#define USB_CDC_SUBCLASS_ETHERNET_MODEL \
0x06
#define USB_CDC_SUBCLASS_ATM_MODEL \
0x07
//*****************************************************************************
//
// USB CDC control interface protocols. Used in control interface descriptor,
// bInterfaceProtocol
//
//*****************************************************************************
#define USB_CDC_PROTOCOL_NONE 0x00
#define USB_CDC_PROTOCOL_V25TER 0x01
#define USB_CDC_PROTOCOL_VENDOR 0xFF
//*****************************************************************************
//
// USB CDC data interface protocols. Used in data interface descriptor,
// bInterfaceProtocol
//
//*****************************************************************************
// USB_CDC_PROTOCOL_NONE 0x00
#define USB_CDC_PROTOCOL_I420 0x30
#define USB_CDC_PROTOCOL_TRANSPARENT \
0x32
#define USB_CDC_PROTOCOL_Q921M 0x50
#define USB_CDC_PROTOCOL_Q921 0x51
#define USB_CDC_PROTOCOL_Q921TM 0x52
#define USB_CDC_PROTOCOL_V42BIS 0x90
#define USB_CDC_PROTOCOL_Q921EURO \
0x91
#define USB_CDC_PROTOCOL_V120 0x92
#define USB_CDC_PROTOCOL_CAPI20 0x93
#define USB_CDC_PROTOCOL_HOST_DRIVER \
0xFD
#define USB_CDC_PROTOCOL_CDC_SPEC \
0xFE
// USB_CDC_PROTOCOL_VENDOR 0xFF
//*****************************************************************************
//
// Functional descriptor definitions
//
//*****************************************************************************
//*****************************************************************************
//
// Functional descriptor types
//
//*****************************************************************************
#define USB_CDC_CS_INTERFACE 0x24
#define USB_CDC_CS_ENDPOINT 0x25
//*****************************************************************************
//
// Functional descriptor subtypes
//
//*****************************************************************************
#define USB_CDC_FD_SUBTYPE_HEADER \
0x00
#define USB_CDC_FD_SUBTYPE_CALL_MGMT \
0x01
#define USB_CDC_FD_SUBTYPE_ABSTRACT_CTL_MGMT \
0x02
#define USB_CDC_FD_SUBTYPE_DIRECT_LINE_MGMT \
0x03
#define USB_CDC_FD_SUBTYPE_TELEPHONE_RINGER \
0x04
#define USB_CDC_FD_SUBTYPE_LINE_STATE_CAPS \
0x05
#define USB_CDC_FD_SUBTYPE_UNION \
0x06
#define USB_CDC_FD_SUBTYPE_COUNTRY \
0x07
#define USB_CDC_FD_SUBTYPE_TELEPHONE_MODES \
0x08
#define USB_CDC_FD_SUBTYPE_USB_TERMINAL \
0x09
#define USB_CDC_FD_SUBTYPE_NETWORK_TERMINAL \
0x0A
#define USB_CDC_FD_SUBTYPE_PROTOCOL_UNIT \
0x0B
#define USB_CDC_FD_SUBTYPE_EXTENSION_UNIT \
0x0C
#define USB_CDC_FD_SUBTYPE_MULTI_CHANNEL_MGMT \
0x0D
#define USB_CDC_FD_SUBTYPE_CAPI_MGMT \
0x0E
#define USB_CDC_FD_SUBTYPE_ETHERNET \
0x0F
#define USB_CDC_FD_SUBTYPE_ATM 0x10
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_CALL_MGMT, Header functional descriptor, bmCapabilities
//
//*****************************************************************************
#define USB_CDC_CALL_MGMT_VIA_DATA \
0x02
#define USB_CDC_CALL_MGMT_HANDLED \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_ABSTRACT_CTL_MGMT, Abstract Control Management functional
// descriptor, bmCapabilities
//
//*****************************************************************************
#define USB_CDC_ACM_SUPPORTS_NETWORK_CONNECTION \
0x08
#define USB_CDC_ACM_SUPPORTS_SEND_BREAK \
0x04
#define USB_CDC_ACM_SUPPORTS_LINE_PARAMS \
0x02
#define USB_CDC_ACM_SUPPORTS_COMM_FEATURE \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_DIRECT_LINE_MGMT, Direct Line Management functional
// descriptor, bmCapabilities
//
//*****************************************************************************
#define USB_CDC_DLM_NEEDS_EXTRA_PULSE_SETUP \
0x04
#define USB_CDC_DLM_SUPPORTS_AUX \
0x02
#define USB_CDC_DLM_SUPPORTS_PULSE \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_TELEPHONE_MODES, Telephone Operational Modes functional
// descriptor, bmCapabilities
//
//*****************************************************************************
#define USB_CDC_TELEPHONE_SUPPORTS_COMPUTER \
0x04
#define USB_CDC_TELEPHONE_SUPPORTS_STANDALONE \
0x02
#define USB_CDC_TELEPHONE_SUPPORTS_SIMPLE \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_LINE_STATE_CAPS, Telephone Call and Line State Reporting
// Capabilities descriptor
//
//*****************************************************************************
#define USB_CDC_LINE_STATE_CHANGES_NOTIFIED \
0x20
#define USB_CDC_LINE_STATE_REPORTS_DTMF \
0x10
#define USB_CDC_LINE_STATE_REPORTS_DIST_RING \
0x08
#define USB_CDC_LINE_STATE_REPORTS_CALLERID \
0x04
#define USB_CDC_LINE_STATE_REPORTS_BUSY \
0x02
#define USB_CDC_LINE_STATE_REPORTS_INT_DIALTONE \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_USB_TERMINAL, USB Terminal functional descriptor,
// bmOptions
//
//*****************************************************************************
#define USB_CDC_TERMINAL_NO_WRAPPER_USED \
0x00
#define USB_CDC_TERMINAL_WRAPPER_USED \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_MULTI_CHANNEL_MGMT, Multi-Channel Management functional
// descriptor, bmCapabilities
//
//*****************************************************************************
#define USB_CDC_MCM_SUPPORTS_SET_UNIT_PARAM \
0x04
#define USB_CDC_MCM_SUPPORTS_CLEAR_UNIT_PARAM \
0x02
#define USB_CDC_MCM_UNIT_PARAMS_NON_VOLATILE \
0x01
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_CAPI_MGMT, CAPI Control Management functional descriptor,
// bmCapabilities
//
//*****************************************************************************
#define USB_CDC_CAPI_INTELLIGENT \
0x01
#define USB_CDC_CAPI_SIMPLE 0x00
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_ETHERNET, Ethernet Networking functional descriptor,
// bmEthernetStatistics
//
//*****************************************************************************
#define USB_CDC_ETHERNET_XMIT_OK \
0x01000000
#define USB_CDC_ETHERNET_RCV_OK 0x02000000
#define USB_CDC_ETHERNET_XMIT_ERROR \
0x04000000
#define USB_CDC_ETHERNET_RCV_ERROR \
0x08000000
#define USB_CDC_ETHERNET_RCV_NO_BUFFER \
0x10000000
#define USB_CDC_ETHERNET_DIRECTED_BYTES_XMIT \
0x20000000
#define USB_CDC_ETHERNET_DIRECTED_FRAMES_XMIT \
0x40000000
#define USB_CDC_ETHERNET_MULTICAST_BYTES_XMIT \
0x80000000
#define USB_CDC_ETHERNET_MULTICAST_FRAMES_XMIT \
0x00010000
#define USB_CDC_ETHERNET_BROADCAST_BYTES_XMIT \
0x00020000
#define USB_CDC_ETHERNET_BROADCAST_FRAMES_XMIT \
0x00040000
#define USB_CDC_ETHERNET_DIRECTED_BYTES_RCV \
0x00080000
#define USB_CDC_ETHERNET_DIRECTED_FRAMES_RCV \
0x00100000
#define USB_CDC_ETHERNET_MULTICAST_BYTES_RCV \
0x00200000
#define USB_CDC_ETHERNET_MULTICAST_FRAMES_RCV \
0x00400000
#define USB_CDC_ETHERNET_BROADCAST_BYTES_RCV \
0x00800000
#define USB_CDC_ETHERNET_BROADCAST_FRAMES_RCV \
0x00000100
#define USB_CDC_ETHERNET_RCV_CRC_ERROR \
0x00000200
#define USB_CDC_ETHERNET_TRANSMIT_QUEUE_LENGTH \
0x00000400
#define USB_CDC_ETHERNET_RCV_ERROR_ALIGNMENT \
0x00000800
#define USB_CDC_ETHERNET_XMIT_ONE_COLLISION \
0x00001000
#define USB_CDC_ETHERNET_XMIT_MORE_COLLISIONS \
0x00002000
#define USB_CDC_ETHERNET_XMIT_DEFERRED \
0x00004000
#define USB_CDC_ETHERNET_XMIT_MAX_COLLISIONS \
0x00008000
#define USB_CDC_ETHERNET_RCV_OVERRUN \
0x00000001
#define USB_CDC_ETHERNET_XMIT_UNDERRUN \
0x00000002
#define USB_CDC_ETHERNET_XMIT_HEARTBEAT_FAILURE \
0x00000004
#define USB_CDC_ETHERNET_XMIT_TIMES_CRS_LOST \
0x00000010
//*****************************************************************************
//
// USB_CDC_FD_SUBTYPE_ATM, ATM Networking functional descriptor,
// bmDataCapabilities
//
//*****************************************************************************
#define USB_CDC_ATM_TYPE_3 0x08
#define USB_CDC_ATM_TYPE_2 0x04
#define USB_CDC_ATM_TYPE_1 0x02
//*****************************************************************************
//
// bmATMDeviceStatistics
//
//*****************************************************************************
#define USB_CDC_ATM_VC_US_CELLS_SENT \
0x10
#define USB_CDC_ATM_VC_US_CELLS_RECEIVED \
0x08
#define USB_CDC_ATM_DS_CELLS_HEC_ERR_CORRECTED \
0x04
#define USB_CDC_ATM_US_CELLS_SENT \
0x02
#define USB_CDC_ATM_US_CELLS_RECEIVED \
0x01
//*****************************************************************************
//
// Management Element Requests (provided in tUSBRequest.bRequest)
//
//*****************************************************************************
#define USB_CDC_SEND_ENCAPSULATED_COMMAND \
0x00
#define USB_CDC_GET_ENCAPSULATED_RESPONSE \
0x01
#define USB_CDC_SET_COMM_FEATURE \
0x02
#define USB_CDC_GET_COMM_FEATURE \
0x03
#define USB_CDC_CLEAR_COMM_FEATURE \
0x04
#define USB_CDC_SET_AUX_LINE_STATE \
0x10
#define USB_CDC_SET_HOOK_STATE 0x11
#define USB_CDC_PULSE_SETUP 0x12
#define USB_CDC_SEND_PULSE 0x13
#define USB_CDC_SET_PULSE_TIME 0x14
#define USB_CDC_RING_AUX_JACK 0x15
#define USB_CDC_SET_LINE_CODING 0x20
#define USB_CDC_GET_LINE_CODING 0x21
#define USB_CDC_SET_CONTROL_LINE_STATE \
0x22
#define USB_CDC_SEND_BREAK 0x23
#define USB_CDC_SET_RINGER_PARMS \
0x30
#define USB_CDC_GET_RINGER_PARMS \
0x31
#define USB_CDC_SET_OPERATION_PARMS \
0x32
#define USB_CDC_GET_OPERATION_PARMS \
0x33
#define USB_CDC_SET_LINE_PARMS 0x34
#define USB_CDC_GET_LINE_PARMS 0x35
#define USB_CDC_DIAL_DIGITS 0x36
#define USB_CDC_SET_UNIT_PARAMETER \
0x37
#define USB_CDC_GET_UNIT_PARAMETER \
0x38
#define USB_CDC_CLEAR_UNIT_PARAMETER \
0x39
#define USB_CDC_GET_PROFILE 0x3A
#define USB_CDC_SET_ETHERNET_MULTICAST_FILTERS \
0x40
#define USB_CDC_SET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER \
0x41
#define USB_CDC_GET_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER \
0x42
#define USB_CDC_SET_ETHERNET_PACKET_FILTER \
0x43
#define USB_CDC_GET_ETHERNET_STATISTIC \
0x44
#define USB_CDC_SET_ATM_DATA_FORMAT \
0x50
#define USB_CDC_GET_ATM_DEVICE_STATISTICS \
0x51
#define USB_CDC_SET_ATM_DEFAULT_VC \
0x52
#define USB_CDC_GET_ATM_VC_STATISTICS \
0x53
//*****************************************************************************
//
// In cases where a request defined above results in the return of a fixed size
// data block, the following group of labels define the size of that block. In
// each of these cases, an access macro is also provided to write the response
// data into an appropriately-sized array of 8-bit characters.
//
//*****************************************************************************
#define USB_CDC_SIZE_COMM_FEATURE \
2
#define USB_CDC_SIZE_LINE_CODING \
7
#define USB_CDC_SIZE_RINGER_PARMS \
4
#define USB_CDC_SIZE_OPERATION_PARMS \
2
#define USB_CDC_SIZE_UNIT_PARAMETER \
2
#define USB_CDC_SIZE_PROFILE 64
#define USB_CDC_SIZE_ETHERNET_POWER_MANAGEMENT_PATTERN_FILTER \
2
#define USB_CDC_SIZE_ETHERNET_STATISTIC \
4
#define USB_CDC_SIZE_ATM_DEVICE_STATISTICS \
4
#define USB_CDC_SIZE_ATM_VC_STATISTICS \
4
#define USB_CDC_SIZE_LINE_PARMS \
10
//*****************************************************************************
//
// NB: USB_CDC_SIZE_LINE_PARAMS assumes only a single call. For multiple
// calls, add 4 bytes per additional call.
//
//*****************************************************************************
//*****************************************************************************
//
// USB_CDC_GET_COMM_FEATURE & USB_CDC_SET_COMM_FEATURE
//
//*****************************************************************************
//*****************************************************************************
//
// wValue (Feature Selector)
//
//*****************************************************************************
#define USB_CDC_ABSTRACT_STATE 0x0001
#define USB_CDC_COUNTRY_SETTING 0x0002
//*****************************************************************************
//
// Data when feature selector is USB_DCD_ABSTRACT_STATE
//
//*****************************************************************************
#define USB_CDC_ABSTRACT_CALL_DATA_MULTIPLEXED \
0x0002
#define USB_CDC_ABSTRACT_ENDPOINTS_IDLE \
0x0001
//*****************************************************************************
//
// Macros to populate the response data buffer (whose size in bytes is defined
// by USB_CDC_SIZE_COMM_FEATURE).
//
//*****************************************************************************
#define SetResponseCommFeature(pi8Buf, ui16Data) \
do \
{ \
(*(uint16_t *)(pi8Buf)) = ui16Data; \
} \
while(0)
//*****************************************************************************
//
// USB_CDC_SET_AUX_LINE_STATE, wValue
//
//*****************************************************************************
#define USB_CDC_AUX_DISCONNECT 0x0000
#define USB_CDC_AUX_CONNECT 0x0001
//*****************************************************************************
//
// USB_CDC_SET_HOOK_STATE, wValue
//
//*****************************************************************************
#define USB_CDC_ON_HOOK 0x0000
#define USB_CDC_OFF_HOOK 0x0001
#define USB_CDC_SNOOPING 0x0002
//*****************************************************************************
//
// USB_CDC_GET_LINE_CODING
//
//*****************************************************************************
#define USB_CDC_STOP_BITS_1 0x00
#define USB_CDC_STOP_BITS_1_5 0x01
#define USB_CDC_STOP_BITS_2 0x02
#define USB_CDC_PARITY_NONE 0x00
#define USB_CDC_PARITY_ODD 0x01
#define USB_CDC_PARITY_EVEN 0x02
#define USB_CDC_PARITY_MARK 0x03
#define USB_CDC_PARITY_SPACE 0x04
//*****************************************************************************
//
// Macro to populate the response data buffer (whose size in bytes is defined
// by USB_CDC_SIZE_LINE_CODING).
//
//*****************************************************************************
#define SetResponseLineCoding(pi8Buf, ui8Rate, ui8Stop, ui8Parity, \
ui8Databits) \
do \
{ \
(*(uint32_t *)(pi8Buf)) = ui8Rate; \
(*((uint8_t *)(pi8Buf) + 4)) = ui8Stop; \
(*((uint8_t *)(pi8Buf) + 5)) = ui8Parity; \
(*((uint8_t *)(pi8Buf) + 6)) = ui8Databits; \
} \
while(0)
//*****************************************************************************
//
// USB_CDC_SET_CONTROL_LINE_STATE, wValue
//
//*****************************************************************************
#define USB_CDC_DEACTIVATE_CARRIER \
0x00
#define USB_CDC_ACTIVATE_CARRIER \
0x02
#define USB_CDC_DTE_NOT_PRESENT 0x00
#define USB_CDC_DTE_PRESENT 0x01
//*****************************************************************************
//
// USB_CDC_SET_RINGER_PARMS, USB_CDC_GET_RINGER_PARMS and
// USB_CDC_GET_LINE_PARMS (ui32RingerBmp)
//
//*****************************************************************************
#define USB_CDC_RINGER_EXISTS 0x80000000
#define USB_CDC_RINGER_DOES_NOT_EXIST \
0x00000000
//*****************************************************************************
//
// Macro to populate the response data buffer to USB_CDC_GET_RINGER_PARMS.
// Parameter buf points to a buffer of size USB_CDC_SIZE_RINGER_PARMS bytes.
//
//*****************************************************************************
#define SetResponseRingerParms(pi8Buf, ui8Pattern, ui8Volume, ui32Exists) \
do \
{ \
*(uint32_t *)(pi8Buf) = ((ui8Pattern) + \
((ui8Volume & 0xFF) << 8) + \
(ui32Exists & USB_CDC_RINGER_EXISTS)); \
} \
while(0)
//*****************************************************************************
//
// Macros to extract fields from the USB_CDC_SET_RINGER_PARMS data
//
//*****************************************************************************
#define GetRingerVolume(pi8Data) \
(BYTE((pi8Data) + 1))
#define GetRingerPattern(pi8Data) \
(BYTE(pi8Data))
#define GetRingerExists(pi8Data) \
((LONG(pi8Data)) & USB_CDC_RINGER_EXISTS)
//*****************************************************************************
//
// USB_CDC_SET_OPERATION_PARMS, wValue
//
//*****************************************************************************
#define USB_CDC_SIMPLE_MODE 0x0000
#define USB_CDC_STANDALONE_MODE 0x0001
#define USB_CDC_HOST_CENTRIC_MODE \
0x0002
//*****************************************************************************
//
// Macro to populate the response data buffer to USB_CDC_GET_OPERATION_PARMS.
// Parameter buf points to a buffer of size USB_CDC_SIZE_OPERATION_PARMS
// bytes.
//
//*****************************************************************************
#define SetResponseOperationParms(pi8Bbuf, ui16Data) \
do \
{ \
WORD(pi8Buf) = ui16Data; \
} \
while(0)
//*****************************************************************************
//
// USB_CDC_SET_LINE_PARMS, wParam - Line State Change
//
//*****************************************************************************
#define USB_CDC_DROP_ACTIVE_CALL \
0x0000
#define USB_CDC_START_NEW_CALL 0x0001
#define USB_CDC_APPLY_RINGING 0x0002
#define USB_CDC_REMOVE_RINGING 0x0003
#define USB_CDC_SWITCH_CALL 0x0004
//*****************************************************************************
//
// Line state bitmap in USB_CDC_GET_LINE_PARMS response
//
//*****************************************************************************
#define USB_CDC_LINE_IS_ACTIVE 0x80000000
#define USB_CDC_LINE_IS_IDLE 0x00000000
#define USB_CDC_LINE_NO_ACTIVE_CALL \
0x000000FF
#define USB_CDC_CALL_ACTIVE 0x80000000
//*****************************************************************************
//
// Call state value definitions
//
//*****************************************************************************
#define USB_CDC_CALL_IDLE 0x00000000
#define USB_CDC_CALL_TYPICAL_DIALTONE \
0x00000001
#define USB_CDC_CALL_INTERRUPTED_DIALTONE \
0x00000002
#define USB_CDC_CALL_DIALING 0x00000003
#define USB_CDC_CALL_RINGBACK 0x00000004
#define USB_CDC_CALL_CONNECTED 0x00000005
#define USB_CDC_CALL_INCOMING 0x00000006
//*****************************************************************************
//
// Call state change value definitions
//
//*****************************************************************************
#define USB_CDC_CALL_STATE_IDLE 0x01
#define USB_CDC_CALL_STATE_DIALING \
0x02
#define USB_CDC_CALL_STATE_RINGBACK \
0x03
#define USB_CDC_CALL_STATE_CONNECTED \
0x04
#define USB_CDC_CALL_STATE_INCOMING \
0x05
//*****************************************************************************
//
// Extra byte of data describing the connection type for
// USB_CDC_CALL_STATE_CONNECTED.
//
//*****************************************************************************
#define USB_CDC_VOICE 0x00
#define USB_CDC_ANSWERING_MACHINE \
0x01
#define USB_CDC_FAX 0x02
#define USB_CDC_MODEM 0x03
#define USB_CDC_UNKNOWN 0xFF
//*****************************************************************************
//
// Macro to extract call index from request in cases where wParam is
// USB_CDC_SWITCH_CALL.
//
//*****************************************************************************
#define GetCallIndex(pi8Data) (BYTE(pi8Data))
//*****************************************************************************
//
// Macro to populate the CallState entries in response to request
// USB_CDC_GET_LINE_PARMS. The ui8Index parameter is a zero based index
// indicating which call entry in the pi8Buf response buffer to fill in. Note
// that pi8Buf points to the first byte of the buffer (the wLength field).
//
//*****************************************************************************
#define SetResponseCallState(pi8Buf, ui8Index, ui32Active, ui8StateChange, \
ui8State) \
do \
{ \
(LONG((uint8_t *)(pi8Buf) + (10 + (4 * (ui8Index))))) = \
(((ui32Active) & USB_CDC_CALL_IS_ACTIVE) + \
(((ui8StateChange) & 0xFF) << 8) + \
((ui8State) & 0xFF)); \
} \
while(0)
//*****************************************************************************
//
// Macro to populate the response data buffer (whose size in bytes is defined
// by USB_CDC_SIZE_LINE_PARMS). Note that this macro only populates fields for
// a single call. If multiple calls are being managed, additional 4 byte
// fields must be appended to provide call state for each call after the first.
// This may be done using the SetResponseCallState macro with the appropriate
// call index supplied.
//
//*****************************************************************************
#define SetResponseLineParms(pi8Buf, ui16Length, \
ui8RingPattern, ui8RingVolume, ui32RingExists, \
ui32LineActive, ui8LineCallIndex, \
ui32CallActive, ui8CallStateChange, \
ui8CallState) \
do \
{ \
(WORD(pi8Buf)) = ui16Length; \
SetResponseRingerParams(((uint8_t *)(pi8Buf) + 2), \
ui8RingPattern, ui8RingVolume, \
ui32RingExists); \
(LONG((uint8_t *)(pi8Buf) + 6)) = \
(((ui32LineActive) & USB_CDC_LINE_IS_ACTIVE) + \
((ui8LineCallIndex) & 0xFF)) ; \
SetResponseCallState(pi8Buf, 0, ui32CallActive, \
ui8CallStateChange, ui8CallState); \
} \
while(0)
//*****************************************************************************
//
// Notification Element definitions
//
//*****************************************************************************
#define USB_CDC_NOTIFY_NETWORK_CONNECTION \
0x00
#define USB_CDC_NOTIFY_RESPONSE_AVAILABLE \
0x01
#define USB_CDC_NOTIFY_AUX_JACK_HOOK_STATE \
0x08
#define USB_CDC_NOTIFY_RING_DETECT \
0x09
#define USB_CDC_NOTIFY_SERIAL_STATE \
0x20
#define USB_CDC_NOTIFY_CALL_STATE_CHANGE \
0x28
#define USB_CDC_NOTIFY_LINE_STATE_CHANGE \
0x29
#define USB_CDC_NOTIFY_CONNECTION_SPEED_CHANGE \
0x2A
//*****************************************************************************
//
// USB_CDC_NOTIFY_NETWORK_CONNECTION, wValue
//
//*****************************************************************************
#define USB_CDC_NETWORK_DISCONNECTED \
0x0000
#define USB_CDC_NETWORK_CONNECTED \
0x0001
//*****************************************************************************
//
// USB_CDC_NOTIFY_AUX_JACK_HOOK_STATE, wValue
//
//*****************************************************************************
#define USB_CDC_AUX_JACK_ON_HOOK \
0x0000
#define USB_CDC_AUX_JACK_OFF_HOOK \
0x0001
//*****************************************************************************
//
// USB_CDC_NOTIFY_SERIAL_STATE, Data
//
//*****************************************************************************
//*****************************************************************************
//
// Number of bytes of data returned alongside this notification.
//
//*****************************************************************************
#define USB_CDC_NOTIFY_SERIAL_STATE_SIZE \
2
#define USB_CDC_SERIAL_STATE_OVERRUN \
0x0040
#define USB_CDC_SERIAL_STATE_PARITY \
0x0020
#define USB_CDC_SERIAL_STATE_FRAMING \
0x0010
#define USB_CDC_SERIAL_STATE_RING_SIGNAL \
0x0008
#define USB_CDC_SERIAL_STATE_BREAK \
0x0004
#define USB_CDC_SERIAL_STATE_TXCARRIER \
0x0002
#define USB_CDC_SERIAL_STATE_RXCARRIER \
0x0001
//*****************************************************************************
//
// USB_CDC_NOTIFY_CALL_STATE_CHANGE, wValue
//
// Call state values are defined above in the group beginning
// USB_CDC_CALL_STATE_IDLE. Note that the data returned alongside this
// notification are heavily dependent upon the call state being reported so no
// specific lengths or access macros are provided here.
//
// Macro to construct the correct wValue for this notification given a state
// and call index.
//
//*****************************************************************************
#define SetNotifyCallStatewValue(pi16Result, ui8CallState, ui8Index) \
do \
{ \
(WORD(pi16Result)) = (((ui8CallState) & 0xFF) + \
(((ui8Index) & 0xFF) << 8)); \
} \
while(0)
//*****************************************************************************
//
// USB_CDC_NOTIFY_LINE_STATE_CHANGE, wValue
//
// Note that the data returned alongside this notification are heavily
// dependent upon the call state being reported so no specific lengths or
// access macros are provided here.
//
//*****************************************************************************
#define USB_CDC_LINE_STATE_IDLE 0x0000
#define USB_CDC_LINE_STATE_HOLD 0x0001
#define USB_CDC_LINE_STATE_OFF_HOOK \
0x0002
#define USB_CDC_LINE_STATE_ON_HOOK \
0x0003
//*****************************************************************************
//
// USB_CDC_NOTIFY_CONNECTION_SPEED_CHANGE, Data
//
// Macro to populate the 8 byte data structure returned alongside this
// notification.
//
//*****************************************************************************
#define SetNotifyConnectionSpeedChange(pi8Buf, ui32USBitRate, ui32DSBitRate) \
do \
{ \
LONG(pi8Buf) = ui32USBitRate; \
LONG((uint8_t *)(pi8Buf) + 4) = ui32DSBitRate; \
} \
while(0)
//*****************************************************************************
//
// Packed structure definitions for request/response data blocks
//
//*****************************************************************************
//*****************************************************************************
//
// All structures defined in this section of the header require byte packing of
// fields. This is usually accomplished using the PACKED macro but, for IAR
// Embedded Workbench, this requires a pragma.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack(1)
#endif
//*****************************************************************************
//
//! USB_CDC_GET/SET_LINE_CODING request-specific data.
//
//*****************************************************************************
typedef struct
{
//
//! The data terminal rate in bits per second.
//
uint32_t ui32Rate;
//
//! The number of stop bits. Valid values are USB_CDC_STOP_BITS_1,
//! USB_CDC_STOP_BITS_1_5 or USB_CDC_STOP_BITS_2
//
uint8_t ui8Stop;
//
//! The parity setting. Valid values are USB_CDC_PARITY_NONE,
//! USB_CDC_PARITY_ODD, USB_CDC_PARITY_EVEN, USB_CDC_PARITY_MARK and
//! USB_CDC_PARITY_SPACE.
//
uint8_t ui8Parity;
//
//! The number of data bits per character. Valid values are 5, 6, 7 and 8
//! in this implementation.
//
uint8_t ui8Databits;
}
PACKED tLineCoding;
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBCDC_H__

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@ -0,0 +1,480 @@
//*****************************************************************************
//
// usbdesc.c - USB descriptor parsing functions.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "usblib/usblib.h"
//*****************************************************************************
//
// Assumptions:
// ------------
//
// The following assumptions are made in this module. From reading chapter 9
// of the USB 2.0 specification, these appear to be perfectly valid.
//
// 1. The interface number, bInterfaceNumber in the interface descriptor, is
// a zero based index and takes values between 0 and
// (pConfigDescriptor->bNumInterfaces - 1) inclusive.
// 2. Similarly, the alternate setting number, bAlternateSetting in the
// interface descriptor, is a zero based index.
// 3. Interface descriptors are ordered by interface number in the
// configuration descriptor.
// 4. If alternate settings are available for an interface, the interface
// descriptors are ordered by alternate setting value bAlternateSetting.
// 5. Although the endpoints associated with a given interface must follow
// their associated interface descriptor, it is possible for other,
// device specific descriptors to be found between an interface descriptor
// and its endpoints or between endpoint descriptors for the same
// interface.
//
//*****************************************************************************
//*****************************************************************************
//
//! \addtogroup general_usblib_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
//! Determines the number of individual descriptors of a particular type within
//! a supplied buffer.
//!
//! \param psDesc points to the first byte of a block of standard USB
//! descriptors.
//! \param ui32Size is the number of bytes of descriptor data found at pointer
//! \e psDesc.
//! \param ui32Type identifies the type of descriptor that is to be counted.
//! If the value is \b USB_DESC_ANY, the function returns the total number of
//! descriptors regardless of type.
//!
//! This function can be used to count the number of descriptors of a
//! particular type within a block of descriptors. The caller can provide a
//! specific type value which the function matches against the second byte of
//! each descriptor or, alternatively, can specify \b USB_DESC_ANY to have the
//! function count all descriptors regardless of their type.
//!
//! \return Returns the number of descriptors found in the supplied block of
//! data.
//
//*****************************************************************************
uint32_t
USBDescGetNum(tDescriptorHeader *psDesc, uint32_t ui32Size,
uint32_t ui32Type)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32TotLength;
uint32_t ui32Count;
//
// Set up for our descriptor counting loop.
//
psDescCheck = psDesc;
ui32TotLength = 0;
ui32Count = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(ui32TotLength < ui32Size)
{
//
// Does this descriptor match the type passed (if a specific type
// has been specified)?
//
if((ui32Type == USB_DESC_ANY) ||
(psDescCheck->bDescriptorType == (uint8_t)(ui32Type & 0xFF)))
{
ui32Count++;
}
//
// Move on to the next descriptor.
//
ui32TotLength += (uint32_t)psDescCheck->bLength;
psDescCheck = NEXT_USB_DESCRIPTOR(psDescCheck);
}
//
// Return the descriptor count to the caller.
//
return(ui32Count);
}
//*****************************************************************************
//
//! Determines the number of individual descriptors of a particular type within
//! a supplied buffer.
//!
//! \param psDesc points to the first byte of a block of standard USB
//! descriptors.
//! \param ui32Size is the number of bytes of descriptor data found at pointer
//! \e psDesc.
//! \param ui32Type identifies the type of descriptor that is to be found. If
//! the value is \b USB_DESC_ANY, the function returns a pointer to the n-th
//! descriptor regardless of type.
//! \param ui32Index is the zero based index of the descriptor whose pointer is
//! to be returned. For example, passing value 1 in \e ui32Index returns the
//! second matching descriptor.
//!
//! Return a pointer to the n-th descriptor of a particular type found in the
//! block of \e ui32Size bytes starting at \e psDesc.
//!
//! \return Returns a pointer to the header of the required descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tDescriptorHeader *
USBDescGet(tDescriptorHeader *psDesc, uint32_t ui32Size,
uint32_t ui32Type, uint32_t ui32Index)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32TotLength;
uint32_t ui32Count;
//
// Set up for our descriptor counting loop.
//
psDescCheck = psDesc;
ui32TotLength = 0;
ui32Count = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(ui32TotLength < ui32Size)
{
//
// Does this descriptor match the type passed (if a specific type
// has been specified)?
//
if((ui32Type == USB_DESC_ANY) ||
(psDescCheck->bDescriptorType == (uint8_t)(ui32Type & 0xFF)))
{
//
// We found a matching descriptor. If our count matches the
// supplied index, we are done so return the pointer.
//
if(ui32Count == ui32Index)
{
return(psDescCheck);
}
//
// We have not found enough descriptors yet to satisfy the supplied
// index so increment our count and continue.
//
ui32Count++;
}
//
// Move on to the next descriptor.
//
ui32TotLength += (uint32_t)psDescCheck->bLength;
psDescCheck = NEXT_USB_DESCRIPTOR(psDescCheck);
}
//
// If we get here, we reached the end of the data without finding the
// required descriptor. Return NULL.
//
return((tDescriptorHeader *)0);
}
//*****************************************************************************
//
//! Determines the number of different alternate configurations for a given
//! interface within a configuration descriptor.
//!
//! \param psConfig points to the first byte of a standard USB configuration
//! descriptor.
//! \param ui8InterfaceNumber is the interface number for which the number of
//! alternate configurations is to be counted.
//!
//! This function can be used to count the number of alternate settings for a
//! specific interface within a configuration.
//!
//! \return Returns the number of alternate versions of the specified interface
//! or 0 if the interface number supplied cannot be found in the config
//! descriptor.
//
//*****************************************************************************
uint32_t
USBDescGetNumAlternateInterfaces(tConfigDescriptor *psConfig,
uint8_t ui8InterfaceNumber)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32TotLength;
uint32_t ui32Count;
//
// Set up for our descriptor counting loop.
//
psDescCheck = (tDescriptorHeader *)psConfig;
ui32TotLength = 0;
ui32Count = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(ui32TotLength < (uint32_t)psConfig->wTotalLength)
{
//
// Is this an interface descriptor with the required interface number?
//
if((psDescCheck->bDescriptorType == USB_DTYPE_INTERFACE) &&
(((tInterfaceDescriptor *)psDescCheck)->bInterfaceNumber ==
ui8InterfaceNumber))
{
//
// Yes - increment our count.
//
ui32Count++;
}
//
// Move on to the next descriptor.
//
ui32TotLength += (uint32_t)psDescCheck->bLength;
psDescCheck = NEXT_USB_DESCRIPTOR(psDescCheck);
}
//
// Return the descriptor count to the caller.
//
return(ui32Count);
}
//*****************************************************************************
//
//! Returns a pointer to the n-th interface descriptor in a config descriptor
//! with the supplied interface number.
//!
//! \param psConfig points to the first byte of a standard USB configuration
//! descriptor.
//! \param ui8InterfaceNumber is the interface number of the descriptor that is
//! being queried.
//! \param ui32Index is the zero based index of the descriptor to return.
//!
//! This function returns a pointer to the n-th interface descriptor in the
//! supplied configuration which has the requested interface number. It may be
//! used by a client to retrieve the descriptors for each alternate setting
//! of a given interface within the configuration passed.
//!
//! \return Returns a pointer to the n-th interface descriptor with interface
//! number as specified or NULL of this descriptor does not exist.
//
//*****************************************************************************
static tInterfaceDescriptor *
USBDescGetAlternateInterface(tConfigDescriptor *psConfig,
uint8_t ui8InterfaceNumber,
uint32_t ui32Index)
{
tDescriptorHeader *psDescCheck;
uint32_t ui32TotLength;
uint32_t ui32Count;
//
// Set up for our descriptor counting loop.
//
psDescCheck = (tDescriptorHeader *)psConfig;
ui32TotLength = 0;
ui32Count = 0;
//
// Keep looking through the supplied data until we reach the end.
//
while(ui32TotLength < (uint32_t)psConfig->wTotalLength)
{
//
// Does this descriptor match the type passed (if a specific type
// has been specified)?
//
if((psDescCheck->bDescriptorType == USB_DTYPE_INTERFACE) &&
(((tInterfaceDescriptor *)psDescCheck)->bInterfaceNumber ==
ui8InterfaceNumber))
{
//
// This is an interface descriptor for interface
// ui8InterfaceNumber. Determine if this is the n-th one we have
// found and, if so, return its pointer.
//
if(ui32Count == ui32Index)
{
//
// Found it - return the pointer.
//
return((tInterfaceDescriptor *)psDescCheck);
}
//
// Increment our count of matching descriptors found and go back
// to look for another since we have not yet reached the n-th
// match.
//
ui32Count++;
}
//
// Move on to the next descriptor.
//
ui32TotLength += (uint32_t)psDescCheck->bLength;
psDescCheck = NEXT_USB_DESCRIPTOR(psDescCheck);
}
//
// If we drop out the end of the loop, we did not find the requested
// descriptor so return NULL.
//
return((tInterfaceDescriptor *)0);
}
//*****************************************************************************
//
//! Returns a pointer to the n-th interface descriptor in a configuration
//! descriptor that applies to the supplied alternate setting number.
//!
//! \param psConfig points to the first byte of a standard USB configuration
//! descriptor.
//! \param ui32Index is the zero based index of the interface that is to be
//! found. If \e ui32Alt is set to a value other than \b USB_DESC_ANY, this
//! will be equivalent to the interface number being searched for.
//! \param ui32Alt is the alternate setting number which is to be
//! searched for. If this value is \b USB_DESC_ANY, the alternate setting
//! is ignored and all interface descriptors are considered in the search.
//!
//! Return a pointer to the n-th interface descriptor found in the supplied
//! configuration descriptor. If \e ui32Alt is not \b USB_DESC_ANY, only
//! interface descriptors which are part of the supplied alternate setting are
//! considered in the search otherwise all interface descriptors are
//! considered.
//!
//! Note that, although alternate settings can be applied on an interface-by-
//! interface basis, the number of interfaces offered is fixed for a given
//! config descriptor. Hence, this function will correctly find the unique
//! interface descriptor for that interface's alternate setting number
//! \e ui32Alt if \e ui32Index is set to the required interface number and
//! \e ui32Alt is set to a valid alternate setting number for that interface.
//!
//! \return Returns a pointer to the required interface descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tInterfaceDescriptor *
USBDescGetInterface(tConfigDescriptor *psConfig, uint32_t ui32Index,
uint32_t ui32Alt)
{
//
// If we are being told to ignore the alternate configuration, this boils
// down to a very simple query.
//
if(ui32Alt == USB_DESC_ANY)
{
//
// Return the ui32Index-th interface descriptor we find in the
// configuration descriptor.
//
return((tInterfaceDescriptor *)USBDescGet(
(tDescriptorHeader *)psConfig,
(uint32_t)psConfig->wTotalLength,
USB_DTYPE_INTERFACE, ui32Index));
}
else
{
//
// In this case, a specific alternate setting number is required.
// Given that interface numbers are zero based indices, we can
// pass the supplied ui32Index parameter directly as the interface
// number to USBDescGetAlternateInterface to retrieve the requested
// interface descriptor pointer.
//
return(USBDescGetAlternateInterface(psConfig, ui32Index, ui32Alt));
}
}
//*****************************************************************************
//
//! Return a pointer to the n-th endpoint descriptor in the supplied
//! interface descriptor.
//!
//! \param psInterface points to the first byte of a standard USB interface
//! descriptor.
//! \param ui32Index is the zero based index of the endpoint that is to be
//! found.
//! \param ui32Size contains the maximum number of bytes that the function may
//! search beyond \e psInterface while looking for the requested endpoint
//! descriptor.
//!
//! Return a pointer to the n-th endpoint descriptor found in the supplied
//! interface descriptor. If the \e ui32Index parameter is invalid (greater
//! than or equal to the bNumEndpoints field of the interface descriptor) or
//! the endpoint cannot be found within \e ui32Size bytes of the interface
//! descriptor pointer, the function will return NULL.
//!
//! Note that, although the USB 2.0 specification states that endpoint
//! descriptors must follow the interface descriptor that they relate to, it
//! also states that device specific descriptors should follow any standard
//! descriptor that they relate to. As a result, we cannot assume that each
//! interface descriptor will be followed by nothing but an ordered list of
//! its own endpoints and, hence, the function needs to be provided \e ui32Size
//! to limit the search range.
//!
//! \return Returns a pointer to the requested endpoint descriptor if
//! found or NULL otherwise.
//
//*****************************************************************************
tEndpointDescriptor *
USBDescGetInterfaceEndpoint(tInterfaceDescriptor *psInterface,
uint32_t ui32Index, uint32_t ui32Size)
{
//
// Is the index passed valid?
//
if(ui32Index >= psInterface->bNumEndpoints)
{
//
// It's out of bounds so return a NULL.
//
return((tEndpointDescriptor *)0);
}
else
{
//
// Endpoint index is valid so find the descriptor.
//
return((tEndpointDescriptor *)USBDescGet(
(tDescriptorHeader *)psInterface,
ui32Size, USB_DTYPE_ENDPOINT, ui32Index));
}
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbdfu.h - Definitions related to the USB Device Firmware Upgrade class.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBDFU_H__
#define __USBDFU_H__
//*****************************************************************************
//
// DFU attributes as published in the functional descriptor.
//
//*****************************************************************************
#define DFU_ATTR_WILL_DETACH 0x08
#define DFU_ATTR_MANIFEST_TOLERANT \
0x04
#define DFU_ATTR_CAN_UPLOAD 0x02
#define DFU_ATTR_CAN_DOWNLOAD 0x01
//*****************************************************************************
//
// The states that the DFU device can be in. These values are reported to
// the host in response to a USBD_DFU_REQUEST_GETSTATE request.
//
//*****************************************************************************
typedef enum
{
eDFUStateAppIdle = 0,
eDFUStateAppDetach,
eDFUStateIdle,
eDFUStateDnloadSync,
eDFUStateDnBusy,
eDFUStateDnloadIdle,
eDFUStateManifestSync,
eDFUStateManifest,
eDFUStateManifestWaitReset,
eDFUStateUploadIdle,
eDFUStateError
}
tDFUState;
//*****************************************************************************
//
// The current error status of the DFU device. These values are reported to
// the host in response to a USBD_DFU_REQUEST_GETSTATUS request.
//
//*****************************************************************************
typedef enum
{
eDFUStatusOk = 0,
eDFUStatusErrTarget,
eDFUStatusErrFile,
eDFUStatusErrWrite,
eDFUStatusErrErase,
eDFUStatusErrCheckErased,
eDFUStatusErrProg,
eDFUStatusErrVerify,
eDFUStatusErrAddress,
eDFUStatusErrNotDone,
eDFUStatusErrFirmware,
eDFUStatusErrVendor,
eDFUStatusErrUSBR,
eDFUStatusErrPOR,
eDFUStatusErrUnknown,
eDFUStatusErrStalledPkt
}
tDFUStatus;
//*****************************************************************************
//
// The descriptor type for the DFU functional descriptor.
//
//*****************************************************************************
#define USB_DFU_FUNC_DESCRIPTOR_TYPE \
0x21
//*****************************************************************************
//
// The subclass identifier for DFU as reported to the host in the
// bInterfaceSubClass field of the DFU interface descriptor.
//
//*****************************************************************************
#define USB_DFU_SUBCLASS 0x01
//*****************************************************************************
//
// The protocol identifier for DFU as reported to the host in the
// bInterfaceProtocol field of the DFU interface descriptor.
//
//*****************************************************************************
#define USB_DFU_PROTOCOL 0x02
#define USB_DFU_RUNTIME_PROTOCOL \
0x01
//*****************************************************************************
//
// DFU class-specific request identifiers.
//
//*****************************************************************************
#define USBD_DFU_REQUEST_DETACH 0
#define USBD_DFU_REQUEST_DNLOAD 1
#define USBD_DFU_REQUEST_UPLOAD 2
#define USBD_DFU_REQUEST_GETSTATUS \
3
#define USBD_DFU_REQUEST_CLRSTATUS \
4
#define USBD_DFU_REQUEST_GETSTATE \
5
#define USBD_DFU_REQUEST_ABORT 6
//*****************************************************************************
//
// Request 1KB blocks from the host. This value is published in the USB
// functional descriptor.
//
//*****************************************************************************
#define DFU_TRANSFER_SIZE 1024
//*****************************************************************************
//
// USBLib-specific request identifier. This is used to determine whether
// the target device supports our DFU command protocol. It is expected that
// a device not supporting our extensions will stall this request. This
// request is only supported while the DFU device is in eDFUStateIdle.
//
// An IN request containing the following parameters will result in the device
// sending back a tDFUQueryTivaProtocol structure indicating that
// USBLib extensions are supported. The actual values in wValue and wIndex
// have no meaning other than to act as markers in the unlikely event that
// another DFU device also chooses to use request ID 0x42 for some other
// purpose.
//
// wValue - 0x23(REQUEST_TIVA_VALUE)
// wIndex - Interface number
// wLength - sizeof(tDFUQueryTivaProtocol)
//
//*****************************************************************************
#define USBD_DFU_REQUEST_TIVA 0x42
#define REQUEST_TIVA_VALUE 0x23
#define DFU_PROTOCOL_TIVA_MARKER \
0x4C4D
#define DFU_PROTOCOL_TIVA_VERSION_1 \
0x0001
#ifdef ewarm
#pragma pack(1)
#endif
//*****************************************************************************
//
// The structure sent to the host when a valid USBD_DFU_REQUEST_TIVA is
// received while the DFU device is in idle state.
//
//*****************************************************************************
typedef struct
{
//
// The protocol marker(DFU_PROTOCOL_TIVA_MARKER)
//
uint16_t ui16Marker;
//
// The protocol version(DFU_PROTOCOL_TIVA_VERSION_1)
//
uint16_t ui16Version;
}
PACKED tDFUQueryTivaProtocol;
//*****************************************************************************
//
// Structure sent to the host in response to USBD_DFU_REQUEST_GETSTATUS.
//
//*****************************************************************************
typedef struct
{
uint8_t bStatus;
uint8_t bwPollTimeout[3];
uint8_t bState;
uint8_t iString;
}
PACKED tDFUGetStatusResponse;
//*****************************************************************************
//
// Firmware Download Commands
//
// The data passed on a USBD_DFU_REQUEST_DNLOAD request is comprised of a
// header which instructs the boot loader how to interpret the block and
// block-specific data. The following definitions relate to the download
// block headers.
//
//*****************************************************************************
//*****************************************************************************
//
// Supported command identifiers
//
//*****************************************************************************
#define DFU_CMD_PROG 0x01
#define DFU_CMD_READ 0x02
#define DFU_CMD_CHECK 0x03
#define DFU_CMD_ERASE 0x04
#define DFU_CMD_INFO 0x05
#define DFU_CMD_BIN 0x06
#define DFU_CMD_RESET 0x07
//*****************************************************************************
//
// Generic download command header.
//
//*****************************************************************************
typedef struct
{
//
// Command identifier.
//
uint8_t ui8Command;
//
// Command-specific data elements.
//
uint8_t pui8Data[7];
}
PACKED tDFUDownloadHeader;
//*****************************************************************************
//
// Header for the DFU_CMD_PROG command.
//
// This command is used to program a section of the flash with the binary data
// which immediately follows the header. The start address of the data is
// expressed as a 1KB block number so 0 would represent the bottom of flash
// (which, incidentally, the USB boot loader will not let you program) and 0x10
// would represent address 16KB or 16384 (0x4000). The ui32Length field
// contains the total number of bytes of data in the following programming
// operation. The DFU device will not look for any command header on following
// USBD_DFU_REQUEST_DNLOAD requests until the operation is completed or
// aborted.
//
// By using this protocol, the DFU_CMD_PROG command header may be used as a
// simple header on the binary files to be sent to the DFU device for
// programming. If we enforce the requirement that the DFU_CMD_PROG header is
// applied to each USBD_DFU_REQUEST_DNLOAD (one per block), this means that the
// host-side DFU application must be aware of the underlying protocol and
// insert these headers dynamically during programming operations. This could
// be handled by post processing the binary to insert the headers at the
// appropriate points but this would then tie the binary structure to the
// chosen transfer size and break the operation if the transfer size were to
// change in the future.
//
//*****************************************************************************
typedef struct
{
//
// DFU_CMD_PROG
//
uint8_t ui8Command;
//
// Reserved - set to 0x00.
//
uint8_t ui8Reserved;
//
// Block start address / 1024
//
uint16_t ui16StartAddr;
//
// Total length, in bytes, of following data for the complete download
// operation.
//
uint32_t ui32Length;
}
PACKED tDFUDownloadProgHeader;
//*****************************************************************************
//
// Header for the DFU_CMD_READ and DFU_CMD_CHECK commands.
//
// This command may be used to set the address range whose content will be
// returned on subsequent USBD_DFU_REQUEST_UPLOAD requests from the host.
//
// To read back a the contents of a region of flash, the host should send
// USBD_DFU_REQUEST_DNLOAD with ui8Command DFU_CMD_READ, ui16StartAddr set to
// the 1KB block start address and ui32Length set to the number of bytes to
// read. The host should then send one or more USBD_DFU_REQUEST_UPLOAD
// requests to receive the current flash contents from the configured
// addresses. Data returned will include an 8 byte DFU_CMD_PROG prefix
// structure unless the prefix has been disabled by sending a DFU_CMD_BIN
// command with the bBinary parameter set to 1.
//
// To check that a region of flash is erased, the DFU_CMD_CHECK command should
// be sent with ui16StartAddr and ui32Length set to describe the region to
// check. The host should then send a USBD_DFU_REQUEST_GETSTATUS. If the
// erase check was successful, the returned bStatus value will be STATUS_OK,
// otherwise it will be STATUS_ERR_CHECK_ERASED. Note that ui32Length passed
// must be a multiple of 4. If this is not the case, the value will be
// truncated before the check is performed.
//
//*****************************************************************************
typedef struct
{
//
// DFU_CMD_READ or DFU_CMD_CHECK
//
uint8_t ui8Command;
//
// Reserved - write to 0
//
uint8_t ui8Reserved;
//
// Block start address / 1024
//
uint16_t ui16StartAddr;
//
// The number of bytes of data to read back or check.
//
uint32_t ui32Length;
}
PACKED tDFUDownloadReadCheckHeader;
//*****************************************************************************
//
// Header for the DFU_CMD_ERASE command.
//
// This command may be used to erase a number of flash blocks. The address of
// the first block to be erased is passed in ui16StartAddr with ui16NumBlocks
// containing the number of blocks to be erased from this address. The block
// size of the device may be determined using the DFU_CMD_INFO command.
//
//*****************************************************************************
typedef struct
{
//
// DFU_CMD_ERASE
//
uint8_t ui8Command;
//
// Reserved - set to 0.
//
uint8_t ui8Reserved;
//
// Block start address / 1024
//
uint16_t ui16StartAddr;
//
// The number of blocks to erase.
//
uint16_t ui16NumBlocks;
//
// Reserved - set to 0.
//
uint8_t pui8Reserved2[2];
}
PACKED tDFUDownloadEraseHeader;
//*****************************************************************************
//
// Header for the DFU_CMD_INFO command.
//
// This command may be used to query information about the connected device.
// After sending the command, the information is returned on the next
// USBD_DFU_REQUEST_UPLOAD request.
//
//*****************************************************************************
typedef struct
{
//
// DFU_CMD_INFO
//
uint8_t ui8Command;
//
// Reserved - set to 0.
//
uint8_t pui8Reserved[7];
}
PACKED tDFUDownloadInfoHeader;
//*****************************************************************************
//
// Header for the DFU_CMD_BIN command.
//
// This command may be used to set the format of uploaded data. By default,
// images read using USBD_DFU_REQUEST_UPLOAD are formatted with the appropriate
// header to allow the same image to be flashed back to the device and have it
// located at the address from which it originated. This is a requirement of
// the DFU class specification (section 6.2 "the uploaded image must be
// usable in a subsequent download") but may not be helpful in some cases where
// the application wishes to receive only the binary image from flash. To
// instruct the DFU device to omit the position and size header, send this
// command with the bBinary field set to \b true prior to issuing a
// USBD_DFU_REQUEST_UPLOAD for image data. The format choice remains in effect
// until the command is sent once again with bBinary set to \b false.
//
// Note that the format choice affects only image data sent and not responses
// read via USBD_DFU_REQUEST_UPLOAD following USBLib-specific commands such
// as DFU_CMD_INFO.
//
//*****************************************************************************
typedef struct
{
//
// DFU_CMD_BIN
//
uint8_t ui8Command;
//
// Set to true to omit image header or false to include it (the default).
//
uint8_t ui8Binary;
//
// Reserved - set to 0.
//
uint8_t pui8Reserved[6];
}
PACKED tDFUDownloadBinHeader;
//*****************************************************************************
//
// The DFU_CMD_RESET command uses a tDFUDownloadHeader structure since
// only the ui8Command field is important. This command causes an immediate
// reset of the the target board.
//
//*****************************************************************************
//*****************************************************************************
//
//! Payload returned in response to the DFU_CMD_INFO command.
//!
//! This is structure is returned in response to the first
//! USBD_DFU_REQUEST_UPLOAD request following a DFU_CMD_INFO command.
//
//*****************************************************************************
typedef struct
{
//
//! The size of a flash block in bytes.
//
uint16_t ui16FlashBlockSize;
//
//! The number of blocks of flash in the device. Total flash size is
//! ui16NumFlashBlocks * ui16FlashBlockSize.
//
uint16_t ui16NumFlashBlocks;
//
//! Information on the part number, family, version and package as
//! read from SYSCTL register DID1.
//
uint32_t ui32PartInfo;
//
//! Information on the part class and revision as read from SYSCTL DID0.
//
uint32_t ui32ClassInfo;
//
//! Address 1 byte above the highest location the boot loader can access.
//
uint32_t ui32FlashTop;
//
//! Lowest address the boot loader can write or erase.
//
uint32_t ui32AppStartAddr;
}
PACKED tDFUDeviceInfo;
#ifdef ewarm
#pragma pack()
#endif
#endif // __USBDFU_H__

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//*****************************************************************************
//
// usbdma.c - USB Library DMA handling functions.
//
// Copyright (c) 2012-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_sysctl.h"
#include "inc/hw_udma.h"
#include "driverlib/debug.h"
#include "driverlib/interrupt.h"
#include "driverlib/rtos_bindings.h"
#include "driverlib/usbdrv.h"
#include "driverlib/rom.h"
#include "driverlib/rom_map.h"
#include "driverlib/udma.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
//*****************************************************************************
//
//! \addtogroup usblib_dma_api Internal USB DMA functions
//! @{
//
//*****************************************************************************
static tUSBDMAInstance g_psUSBDMAInst[1];
//*****************************************************************************
//
// Macros used to determine if a uDMA endpoint configuration is used for
// receive or transmit.
//
//*****************************************************************************
#define UDMAConfigIsRx(ui32Config) \
((ui32Config & UDMA_SRC_INC_NONE) == UDMA_SRC_INC_NONE)
#define UDMAConfigIsTx(ui32Config) \
((ui32Config & UDMA_DEST_INC_NONE) == UDMA_DEST_INC_NONE)
//*****************************************************************************
//
// USBLibDMAChannelStatus() for USB controllers that use the uDMA for DMA.
//
//*****************************************************************************
static uint32_t
uDMAUSBChannelStatus(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel)
{
uint32_t ui32Status;
//
// Initialize the current status to no events.
//
ui32Status = USBLIBSTATUS_DMA_IDLE;
//
// Check if there is a pending DMA transfer.
//
if(psUSBDMAInst->ui32Complete & (1 << (ui32Channel - 1)))
{
//
// Return that the DMA transfer has completed and clear the
// DMA pending flag.
//
ui32Status = USBLIBSTATUS_DMA_COMPLETE;
}
else if(psUSBDMAInst->ui32Pending & (1 << (ui32Channel - 1)))
{
//
// DMA transfer is still pending.
//
ui32Status = USBLIBSTATUS_DMA_PENDING;
}
else
{
//
// DMA transfer is still pending.
//
ui32Status = USBLIBSTATUS_DMA_IDLE;
}
return(ui32Status);
}
//*****************************************************************************
//
// USBLibDMAIntStatus() for USB controllers that use uDMA.
//
//*****************************************************************************
static uint32_t
uDMAUSBIntStatus(tUSBDMAInstance *psUSBDMAInst)
{
uint32_t ui32Status, ui32Pending;
int32_t i32Channel;
//
// Initialize the current status to no events.
//
ui32Status = 0;
//
// No pending interrupts by default.
//
ui32Status = 0;
//
// Save the pending channels.
//
ui32Pending = psUSBDMAInst->ui32Pending;
//
// Loop through channels to find out if any pending DMA transfers have
// completed.
//
for(i32Channel = 0; i32Channel < USB_MAX_DMA_CHANNELS; i32Channel++)
{
//
// If pending and stopped then the DMA completed.
//
if((ui32Pending & 1) &&
(MAP_uDMAChannelModeGet(i32Channel) == UDMA_MODE_STOP))
{
ui32Status |= (1 << i32Channel);
}
ui32Pending >>= 1;
//
// Done if this is zero.
//
if(ui32Pending == 0)
{
break;
}
}
return(ui32Status);
}
//*****************************************************************************
//
// USBLibDMAIntStatusClear() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static void
DMAUSBIntStatusClear(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Status)
{
//
// Clear out the requested interrupts. Since the USB interface does not
// have a true interrupt clear, this clears the current completed
// status for the requested channels.
//
psUSBDMAInst->ui32Complete &= ~ui32Status;
return;
}
//*****************************************************************************
//
// USBLibDMAIntHandler() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static void
DMAUSBIntHandler(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32DMAIntStatus)
{
uint32_t ui32Channel;
if(ui32DMAIntStatus == 0)
{
return;
}
//
// Determine if the uDMA is used or the USB DMA controller.
//
for(ui32Channel = 0; ui32Channel < USB_MAX_DMA_CHANNELS; ui32Channel++)
{
//
// Mark any pending interrupts as completed.
//
if(ui32DMAIntStatus & 1)
{
psUSBDMAInst->ui32Pending &= ~(1 << ui32Channel);
psUSBDMAInst->ui32Complete |= (1 << ui32Channel);
}
//
// Check the next channel.
//
ui32DMAIntStatus >>= 1;
//
// Break if there are no more pending DMA interrupts.
//
if(ui32DMAIntStatus == 0)
{
break;
}
}
}
//*****************************************************************************
//
// USBLibDMAChannelEnable() for USB controllers that use uDMA.
//
//*****************************************************************************
static void
uDMAUSBChannelEnable(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel)
{
uint32_t ui32IntEnabled;
//
// Save if the interrupt was enabled or not.
//
ui32IntEnabled = IntIsEnabled(psUSBDMAInst->ui32IntNum);
//
// Disable the USB interrupt if it was enabled.
//
if(ui32IntEnabled)
{
OS_INT_DISABLE(psUSBDMAInst->ui32IntNum);
}
//
// Mark this channel as pending and not complete.
//
psUSBDMAInst->ui32Pending |= (1 << (ui32Channel - 1));
psUSBDMAInst->ui32Complete &= ~(1 << (ui32Channel - 1));
//
// Enable DMA for the endpoint.
//
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
MAP_USBEndpointDMAEnable(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
USB_EP_DEV_OUT | USB_EP_HOST_IN);
}
else
{
MAP_USBEndpointDMAEnable(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
USB_EP_DEV_IN | USB_EP_HOST_OUT);
}
//
// Enable the DMA in the uDMA controller.
//
MAP_uDMAChannelEnable(ui32Channel - 1);
//
// Enable the USB interrupt if it was enabled before.
//
if(ui32IntEnabled)
{
OS_INT_ENABLE(psUSBDMAInst->ui32IntNum);
}
}
//*****************************************************************************
//
// USBLibDMAChannelDisable() for USB controllers that use uDMA.
//
//*****************************************************************************
static void
uDMAUSBChannelDisable(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel)
{
//
// Disable DMA for the endpoint.
//
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
USB_EP_DEV_OUT);
}
else
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
USB_EP_DEV_IN);
}
//
// Disable the DMA channel in the uDMA controller.
//
MAP_uDMAChannelDisable(ui32Channel - 1);
//
// Clear out any pending or complete flag set for this DMA channel.
//
psUSBDMAInst->ui32Pending &= ~(1 << (ui32Channel - 1));
psUSBDMAInst->ui32Complete &= ~(1 << (ui32Channel - 1));
}
//*****************************************************************************
//
// USBLibDMAChannelIntEnable() for USB controllers that use uDMA.
//
//*****************************************************************************
static void
uDMAUSBChannelIntEnable(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel)
{
//
// There is no way to Enable channel interrupts when using uDMA.
//
}
//*****************************************************************************
//
// USBLibDMAChannelIntDisable() for USB controllers that use uDMA.
//
//*****************************************************************************
static void
uDMAUSBChannelIntDisable(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel)
{
//
// There is no way to Disable channel interrupts when using uDMA.
//
}
//*****************************************************************************
//
// USBLibDMATransfer() for USB controllers that use the uDMA controller.
//
//*****************************************************************************
static uint32_t
uDMAUSBTransfer(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel,
void *pvBuffer, uint32_t ui32Size)
{
void *pvFIFO;
uint32_t uluDMAChannel;
uint32_t ui32PacketCount;
uint32_t ui32TransferCount;
if((ui32Size < 64) || ((uint32_t)pvBuffer & 0x3))
{
return(0);
}
//
// Mark this channel as pending and not complete.
//
psUSBDMAInst->ui32Pending |= (1 << (ui32Channel - 1));
psUSBDMAInst->ui32Complete &= ~(1 << (ui32Channel - 1));
//
// Save the pointer to the data and the byte count.
//
psUSBDMAInst->ppui32Data[ui32Channel - 1] = pvBuffer;
psUSBDMAInst->pui32Count[ui32Channel - 1] = ui32Size;
//
// Need the address of the FIFO.
//
pvFIFO = (void *)USBFIFOAddrGet(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1]);
//
// Calculate the uDMA channel for this RX channel.
//
uluDMAChannel = UDMA_CHANNEL_USBEP1RX + ui32Channel - 1;
ui32TransferCount = ui32Size;
if((psUSBDMAInst->pui32Config[ui32Channel - 1] & UDMA_SIZE_32) ==
UDMA_SIZE_32)
{
ui32TransferCount >>= 2;
}
else if((psUSBDMAInst->pui32Config[ui32Channel - 1] & UDMA_SIZE_32) ==
UDMA_SIZE_32)
{
ui32TransferCount >>= 1;
}
//
// If source increment is none this is an RX transfer.
//
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
MAP_uDMAChannelTransferSet(uluDMAChannel, UDMA_MODE_BASIC, pvFIFO,
pvBuffer, ui32TransferCount);
}
else
{
MAP_uDMAChannelTransferSet(uluDMAChannel, UDMA_MODE_BASIC, pvBuffer,
pvFIFO, ui32TransferCount);
}
//
// Set the mode based on the size of the transfer. More than one
// packet requires mode 1.
//
if(ui32Size > psUSBDMAInst->pui32MaxPacketSize[ui32Channel - 1])
{
//
// Calculate the number of packets required for this transfer.
//
ui32PacketCount = ((ui32Size /
psUSBDMAInst->pui32MaxPacketSize[ui32Channel - 1]));
//
// Set the packet count so that the last packet does not generate
// another IN request.
//
USBEndpointPacketCountSet(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
ui32PacketCount);
//
// Configure the USB endpoint in mode 1 for this DMA transfer.
//
USBEndpointDMAConfigSet(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
psUSBDMAInst->pui32EPDMAMode1[ui32Channel - 1]);
}
else
{
//
// Configure the USB endpoint in mode 0 for this DMA transfer.
//
USBEndpointDMAConfigSet(psUSBDMAInst->ui32Base,
psUSBDMAInst->pui8Endpoint[ui32Channel - 1],
psUSBDMAInst->pui32EPDMAMode0[ui32Channel -1]);
}
//
// Enable the uDMA channel to start the transfer
//
uDMAUSBChannelEnable(psUSBDMAInst, ui32Channel);
return(ui32Size);
}
//*****************************************************************************
//
// USBLibDMAChannelAllocate() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static uint32_t
uDMAUSBChannelAllocate(tUSBDMAInstance *psUSBDMAInst, uint8_t ui8Endpoint,
uint32_t ui32MaxPacketSize, uint32_t ui32Config)
{
uint32_t ui32Channel;
//
// The DMA channels are organized in pairs on this controller and the
// transmit channels are 1, 3, and 5 while receive are 0, 2, and 4.
//
if(ui32Config & USB_DMA_EP_RX)
{
ui32Channel = 0;
}
else
{
ui32Channel = 1;
}
//
// Search for an available DMA channel to use.
//
for(; ui32Channel < USB_MAX_DMA_CHANNELS_0; ui32Channel += 2)
{
//
// If the current endpoint value is zero then this channel is
// available.
//
if(psUSBDMAInst->pui8Endpoint[ui32Channel] == 0)
{
//
// Save the endpoint for this DMA channel.
//
psUSBDMAInst->pui8Endpoint[ui32Channel] = ui8Endpoint;
//
// Save the maximum packet size for the endpoint.
//
psUSBDMAInst->pui32MaxPacketSize[ui32Channel] = ui32MaxPacketSize;
//
// Set the channel configuration based on the direction.
//
if(ui32Config & USB_DMA_EP_RX)
{
psUSBDMAInst->pui32Config[ui32Channel] =
UDMA_SIZE_8 | UDMA_SRC_INC_NONE | UDMA_DST_INC_8 |
UDMA_ARB_64;
//
// If in device mode and Isochronous.
//
if(((ui32Config & USB_DMA_EP_HOST) == 0) &&
((ui32Config & USB_DMA_EP_TYPE_M) == USB_DMA_EP_TYPE_ISOC))
{
//
// USB_EP_AUTO_REQUEST is required for device
// Isochronous endpoints.
//
psUSBDMAInst->pui32EPDMAMode0[ui32Channel] =
USB_EP_DMA_MODE_0 |
USB_EP_AUTO_REQUEST |
USB_EP_HOST_IN;
}
else
{
psUSBDMAInst->pui32EPDMAMode0[ui32Channel] =
USB_EP_DMA_MODE_0 |
USB_EP_AUTO_CLEAR |
USB_EP_HOST_IN;
}
//
// Do not set auto request in device mode unless it is an
// isochronous endpoint.
//
if(((ui32Config & USB_DMA_EP_HOST) == 0) &&
((ui32Config & USB_DMA_EP_TYPE_M) != USB_DMA_EP_TYPE_ISOC))
{
psUSBDMAInst->pui32EPDMAMode1[ui32Channel] =
USB_EP_DMA_MODE_1 |
USB_EP_HOST_IN |
USB_EP_AUTO_CLEAR;
}
else
{
psUSBDMAInst->pui32EPDMAMode1[ui32Channel] =
USB_EP_DMA_MODE_1 |
USB_EP_HOST_IN |
USB_EP_AUTO_REQUEST |
USB_EP_AUTO_CLEAR;
}
}
else
{
psUSBDMAInst->pui32Config[ui32Channel] =
UDMA_SIZE_8 | UDMA_SRC_INC_8 | UDMA_DST_INC_NONE |
UDMA_ARB_64;
psUSBDMAInst->pui32EPDMAMode0[ui32Channel] = USB_EP_DMA_MODE_0 |
USB_EP_HOST_OUT;
psUSBDMAInst->pui32EPDMAMode1[ui32Channel] = USB_EP_DMA_MODE_1 |
USB_EP_HOST_OUT |
USB_EP_AUTO_SET;
}
//
// Map the uDMA channel to the given endpoint.
//
MAP_USBEndpointDMAChannel(psUSBDMAInst->ui32Base, ui8Endpoint,
ui32Channel);
//
// Clear out the attributes on this channel.
//
MAP_uDMAChannelAttributeDisable(ui32Channel, UDMA_ATTR_ALL);
//
// Configure the uDMA channel for the pipe
//
MAP_uDMAChannelControlSet(ui32Channel,
psUSBDMAInst->pui32Config[ui32Channel]);
if(ui32Config & USB_DMA_EP_RX)
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base, ui8Endpoint,
USB_EP_DEV_OUT);
}
else
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base, ui8Endpoint,
USB_EP_DEV_IN);
}
//
// Outside of this function all channels are 1 based as
// zero is not a valid channel.
//
return(ui32Channel + 1);
}
}
return(0);
}
//*****************************************************************************
//
// USBLibDMAChannelRelease() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static void
uDMAUSBChannelRelease(tUSBDMAInstance *psUSBDMAInst, uint8_t ui32Channel)
{
ASSERT(ui32Channel < USB_MAX_DMA_CHANNELS_0);
//
// Clear out the attributes on this channel.
//
MAP_uDMAChannelAttributeDisable(ui32Channel - 1, UDMA_ATTR_ALL);
if(psUSBDMAInst->pui8Endpoint[ui32Channel] & USB_DMA_EP_RX)
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base,
(psUSBDMAInst->pui8Endpoint[ui32Channel] & ~USB_DMA_EP_RX),
USB_EP_DEV_OUT);
}
else
{
MAP_USBEndpointDMADisable(psUSBDMAInst->ui32Base,
(psUSBDMAInst->pui8Endpoint[ui32Channel] & ~USB_DMA_EP_RX),
USB_EP_DEV_IN);
}
//
// Clear out the state for this endpoint.
//
psUSBDMAInst->pui8Endpoint[ui32Channel - 1] = 0;
psUSBDMAInst->pui32Config[ui32Channel - 1] = 0;
psUSBDMAInst->ui32Pending &= ~(1 << (ui32Channel - 1));
psUSBDMAInst->ui32Complete &= ~(1 << (ui32Channel - 1));
psUSBDMAInst->pui32MaxPacketSize[ui32Channel - 1] = 0;
}
//*****************************************************************************
//
// USBLibDMAUnitSizeSet() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static void
uDMAUSBUnitSizeSet(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel,
uint32_t ui32BitSize)
{
uint32_t ui32Value;
ASSERT((ui32BitSize == UDMA_SIZE_8) || (ui32BitSize == UDMA_SIZE_16) ||
(ui32BitSize == UDMA_SIZE_32));
ASSERT(ui32Channel < USB_MAX_DMA_CHANNELS_0);
if(ui32BitSize == 8)
{
ui32Value = UDMA_SIZE_8;
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
//
// Receive increments destination and not source.
//
ui32Value |= UDMA_DST_INC_8 | UDMA_SRC_INC_NONE;
}
else
{
//
// Transmit increments source and not destination.
//
ui32Value |= UDMA_SRC_INC_8 | UDMA_DST_INC_NONE;
}
}
else if(ui32BitSize == 16)
{
ui32Value = UDMA_SIZE_16;
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
//
// Receive increments destination and not source.
//
ui32Value |= UDMA_DST_INC_16 | UDMA_SRC_INC_NONE;
}
else
{
//
// Transmit increments source and not destination.
//
ui32Value |= UDMA_SRC_INC_16 | UDMA_DST_INC_NONE;
}
}
else
{
ui32Value = UDMA_SIZE_32;
if(UDMAConfigIsRx(psUSBDMAInst->pui32Config[ui32Channel - 1]))
{
//
// Receive increments destination and not source.
//
ui32Value |= (UDMA_DST_INC_32 | UDMA_SRC_INC_NONE);
}
else
{
//
// Transmit increments source and not destination.
//
ui32Value |= (UDMA_SRC_INC_32 | UDMA_DST_INC_NONE);
}
}
//
// Keep the current arbitration size and or in the size.
//
psUSBDMAInst->pui32Config[ui32Channel - 1] &= 0x00ffffff;
psUSBDMAInst->pui32Config[ui32Channel - 1] |= ui32Value;
MAP_uDMAChannelControlSet(ui32Channel - 1,
psUSBDMAInst->pui32Config[ui32Channel - 1]);
}
//*****************************************************************************
//
// USBLibDMAArbSizeSet() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static void
uDMAUSBArbSizeSet(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel,
uint32_t ui32ArbSize)
{
uint32_t ui32Value;
ASSERT(ui32Channel < USB_MAX_DMA_CHANNELS_0);
//
// Get the arbitration size value.
//
if(ui32ArbSize == 2)
{
ui32Value = UDMA_ARB_2;
}
else if(ui32ArbSize == 4)
{
ui32Value = UDMA_ARB_4;
}
else if(ui32ArbSize == 8)
{
ui32Value = UDMA_ARB_8;
}
else if(ui32ArbSize == 16)
{
ui32Value = UDMA_ARB_16;
}
else if(ui32ArbSize == 32)
{
ui32Value = UDMA_ARB_32;
}
else if(ui32ArbSize == 64)
{
ui32Value = UDMA_ARB_64;
}
else if(ui32ArbSize == 128)
{
ui32Value = UDMA_ARB_128;
}
else if(ui32ArbSize == 256)
{
ui32Value = UDMA_ARB_256;
}
else
{
//
// Default to arbitration size of 1.
//
ui32Value = UDMA_ARB_1;
}
//
// Keep the current size and or in the new arbitration size.
//
psUSBDMAInst->pui32Config[ui32Channel - 1] &= 0xff000000;
psUSBDMAInst->pui32Config[ui32Channel - 1] |= ui32Value;
//
// Set the uDMA channel control, remember its channel starts at 0 and
// not 1.
//
MAP_uDMAChannelControlSet(ui32Channel - 1,
psUSBDMAInst->pui32Config[ui32Channel - 1]);
}
//*****************************************************************************
//
// USBLibDMAStatus() for USB controllers that use uDMA for DMA.
//
//*****************************************************************************
static uint32_t
DMAUSBStatus(tUSBDMAInstance *psUSBDMAInst)
{
return(0);
}
//*****************************************************************************
//
//! This function is used to initialize the DMA interface for a USB instance.
//!
//! \param ui32Index is the index of the USB controller for this instance.
//!
//! This function performs any initialization and configuration of the DMA
//! portions of the USB controller. This function returns a pointer that
//! is used with the remaining USBLibDMA APIs or the function returns zero
//! if the requested controller cannot support DMA. If this function is called
//! when already initialized it will not reinitialize the DMA controller and
//! will instead return the previously initialized DMA instance.
//!
//! \return A pointer to use with USBLibDMA APIs.
//
//*****************************************************************************
tUSBDMAInstance *
USBLibDMAInit(uint32_t ui32Index)
{
uint32_t ui32Channel;
ASSERT(ui32Index == 0);
//
// Make sure that the DMA has not already been initialized.
//
if(g_psUSBDMAInst[0].ui32Base == USB0_BASE)
{
return(&g_psUSBDMAInst[0]);
}
//
// Save the base address of the USB controller.
//
g_psUSBDMAInst[0].ui32Base = USB0_BASE;
//
// Save the interrupt number for the USB controller.
//
g_psUSBDMAInst[0].ui32IntNum = INT_USB0_BLIZZARD;
//
// Initialize the function pointers.
//
g_psUSBDMAInst[0].pfnArbSizeSet = uDMAUSBArbSizeSet;
g_psUSBDMAInst[0].pfnChannelAllocate = uDMAUSBChannelAllocate;
g_psUSBDMAInst[0].pfnChannelDisable = uDMAUSBChannelDisable;
g_psUSBDMAInst[0].pfnChannelEnable = uDMAUSBChannelEnable;
g_psUSBDMAInst[0].pfnChannelIntEnable = uDMAUSBChannelIntEnable;
g_psUSBDMAInst[0].pfnChannelIntDisable = uDMAUSBChannelIntDisable;
g_psUSBDMAInst[0].pfnChannelRelease = uDMAUSBChannelRelease;
g_psUSBDMAInst[0].pfnChannelStatus = uDMAUSBChannelStatus;
g_psUSBDMAInst[0].pfnIntHandler = DMAUSBIntHandler;
g_psUSBDMAInst[0].pfnIntStatus = uDMAUSBIntStatus;
g_psUSBDMAInst[0].pfnIntStatusClear = DMAUSBIntStatusClear;
g_psUSBDMAInst[0].pfnStatus = DMAUSBStatus;
g_psUSBDMAInst[0].pfnTransfer = uDMAUSBTransfer;
g_psUSBDMAInst[0].pfnUnitSizeSet = uDMAUSBUnitSizeSet;
//
// Clear out the endpoint and the current configuration.
//
for(ui32Channel = 0; ui32Channel < USB_MAX_DMA_CHANNELS; ui32Channel++)
{
g_psUSBDMAInst[0].pui8Endpoint[ui32Channel] = 0;
g_psUSBDMAInst[0].pui32Config[ui32Channel] = 0;
g_psUSBDMAInst[0].ui32Pending = 0;
g_psUSBDMAInst[0].ui32Complete = 0;
}
return(&g_psUSBDMAInst[0]);
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

661
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/lib/usblib/usbhid.h Normal file
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@ -0,0 +1,661 @@
//*****************************************************************************
//
// usbhid.h - Definitions used by HID class devices and hosts.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBHID_H__
#define __USBHID_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup hid_device_class_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// HID Interface descriptor Subclasses.
//
//*****************************************************************************
#define USB_HID_SCLASS_NONE 0x00
#define USB_HID_SCLASS_BOOT 0x01
//*****************************************************************************
//
// USB Interface descriptor HID protocols.
//
//*****************************************************************************
#define USB_HID_PROTOCOL_NONE 0
#define USB_HID_PROTOCOL_KEYB 1
#define USB_HID_PROTOCOL_MOUSE 2
//*****************************************************************************
//
// HID Class descriptor types.
//
//*****************************************************************************
#define USB_HID_DTYPE_HID 0x21
#define USB_HID_DTYPE_REPORT 0x22
#define USB_HID_DTYPE_PHYSICAL 0x23
//*****************************************************************************
//
// HID USB requests.
//
//*****************************************************************************
#define USBREQ_GET_REPORT 0x01
#define USBREQ_GET_IDLE 0x02
#define USBREQ_GET_PROTOCOL 0x03
#define USBREQ_SET_REPORT 0x09
#define USBREQ_SET_IDLE 0x0a
#define USBREQ_SET_PROTOCOL 0x0b
//*****************************************************************************
//
// GET_REPORT or SET_REPORT Definitions.
//
//*****************************************************************************
#define USB_HID_REPORT_IN 0x01
#define USB_HID_REPORT_OUTPUT 0x02
#define USB_HID_REPORT_FEATURE 0x03
//*****************************************************************************
//
// GET_PROTOCOL or SET_PROTOCOL Definitions.
//
//*****************************************************************************
#define USB_HID_PROTOCOL_BOOT 0
#define USB_HID_PROTOCOL_REPORT 1
//*****************************************************************************
//
// Report Values used with the Report macros.
//
//*****************************************************************************
#define USB_HID_GENERIC_DESKTOP 0x01
#define USB_HID_BUTTONS 0x09
#define USB_HID_X 0x30
#define USB_HID_Y 0x31
#define USB_HID_POINTER 0x01
#define USB_HID_MOUSE 0x02
#define USB_HID_KEYBOARD 0x06
#define USB_HID_PHYSICAL 0x00
#define USB_HID_APPLICATION 0x01
#define USB_HID_LOGICAL 0x02
#define USB_HID_USAGE_POINTER 0x0109
#define USB_HID_USAGE_BUTTONS 0x0509
#define USB_HID_USAGE_LEDS 0x0508
#define USB_HID_USAGE_KEYCODES 0x0507
//*****************************************************************************
//
// HID mouse button definitions as used in the first byte of the output report
// used in the BIOS mouse protocol.
//
//*****************************************************************************
#define HID_MOUSE_BUTTON_1 0x01
#define HID_MOUSE_BUTTON_2 0x02
#define HID_MOUSE_BUTTON_3 0x04
//*****************************************************************************
//
// HID Keyboard LED definitions as used in the first byte of the output report
// used in the BIOS keyboard protocol.
//
//*****************************************************************************
#define HID_KEYB_NUM_LOCK 0x01
#define HID_KEYB_CAPS_LOCK 0x02
#define HID_KEYB_SCROLL_LOCK 0x04
#define HID_KEYB_COMPOSE 0x08
#define HID_KEYB_KANA 0x10
//*****************************************************************************
//
// HID Keyboard key modifiers as provided in the first byte of the input report
// used in the BIOS keyboard protocol.
//
//*****************************************************************************
#define HID_KEYB_LEFT_CTRL 0x01
#define HID_KEYB_LEFT_SHIFT 0x02
#define HID_KEYB_LEFT_ALT 0x04
#define HID_KEYB_LEFT_GUI 0x08
#define HID_KEYB_RIGHT_CTRL 0x10
#define HID_KEYB_RIGHT_SHIFT 0x20
#define HID_KEYB_RIGHT_ALT 0x40
#define HID_KEYB_RIGHT_GUI 0x80
//*****************************************************************************
//
// A subset of the HID keyboard usage IDs.
//
//*****************************************************************************
#define HID_KEYB_USAGE_RESERVED 0x00
#define HID_KEYB_USAGE_ROLLOVER 0x01
#define HID_KEYB_USAGE_A 0x04
#define HID_KEYB_USAGE_B 0x05
#define HID_KEYB_USAGE_C 0x06
#define HID_KEYB_USAGE_D 0x07
#define HID_KEYB_USAGE_E 0x08
#define HID_KEYB_USAGE_F 0x09
#define HID_KEYB_USAGE_G 0x0A
#define HID_KEYB_USAGE_H 0x0B
#define HID_KEYB_USAGE_I 0x0C
#define HID_KEYB_USAGE_J 0x0D
#define HID_KEYB_USAGE_K 0x0E
#define HID_KEYB_USAGE_L 0x0F
#define HID_KEYB_USAGE_M 0x10
#define HID_KEYB_USAGE_N 0x11
#define HID_KEYB_USAGE_O 0x12
#define HID_KEYB_USAGE_P 0x13
#define HID_KEYB_USAGE_Q 0x14
#define HID_KEYB_USAGE_R 0x15
#define HID_KEYB_USAGE_S 0x16
#define HID_KEYB_USAGE_T 0x17
#define HID_KEYB_USAGE_U 0x18
#define HID_KEYB_USAGE_V 0x19
#define HID_KEYB_USAGE_W 0x1A
#define HID_KEYB_USAGE_X 0x1B
#define HID_KEYB_USAGE_Y 0x1C
#define HID_KEYB_USAGE_Z 0x1D
#define HID_KEYB_USAGE_1 0x1E
#define HID_KEYB_USAGE_2 0x1F
#define HID_KEYB_USAGE_3 0x20
#define HID_KEYB_USAGE_4 0x21
#define HID_KEYB_USAGE_5 0x22
#define HID_KEYB_USAGE_6 0x23
#define HID_KEYB_USAGE_7 0x24
#define HID_KEYB_USAGE_8 0x25
#define HID_KEYB_USAGE_9 0x26
#define HID_KEYB_USAGE_0 0x27
#define HID_KEYB_USAGE_ENTER 0x28
#define HID_KEYB_USAGE_ESCAPE 0x29
#define HID_KEYB_USAGE_BACKSPACE \
0x2A
#define HID_KEYB_USAGE_TAB 0x2B
#define HID_KEYB_USAGE_SPACE 0x2C
#define HID_KEYB_USAGE_MINUS 0x2D
#define HID_KEYB_USAGE_EQUAL 0x2E
#define HID_KEYB_USAGE_LBRACKET 0x2F
#define HID_KEYB_USAGE_RBRACKET 0x30
#define HID_KEYB_USAGE_BSLASH 0x31
#define HID_KEYB_USAGE_SEMICOLON \
0x33
#define HID_KEYB_USAGE_FQUOTE 0x34
#define HID_KEYB_USAGE_BQUOTE 0x35
#define HID_KEYB_USAGE_COMMA 0x36
#define HID_KEYB_USAGE_PERIOD 0x37
#define HID_KEYB_USAGE_FSLASH 0x38
#define HID_KEYB_USAGE_CAPSLOCK 0x39
#define HID_KEYB_USAGE_F1 0x3A
#define HID_KEYB_USAGE_F2 0x3B
#define HID_KEYB_USAGE_F3 0x3C
#define HID_KEYB_USAGE_F4 0x3D
#define HID_KEYB_USAGE_F5 0x3E
#define HID_KEYB_USAGE_F6 0x3F
#define HID_KEYB_USAGE_F7 0x40
#define HID_KEYB_USAGE_F8 0x41
#define HID_KEYB_USAGE_F9 0x42
#define HID_KEYB_USAGE_F10 0x43
#define HID_KEYB_USAGE_F11 0x44
#define HID_KEYB_USAGE_F12 0x45
#define HID_KEYB_USAGE_SCROLLOCK \
0x47
#define HID_KEYB_USAGE_PAGE_UP 0x4B
#define HID_KEYB_USAGE_PAGE_DOWN \
0x4E
#define HID_KEYB_USAGE_RIGHT_ARROW \
0x4F
#define HID_KEYB_USAGE_LEFT_ARROW \
0x50
#define HID_KEYB_USAGE_DOWN_ARROW \
0x51
#define HID_KEYB_USAGE_UP_ARROW 0x52
#define HID_KEYB_USAGE_NUMLOCK 0x53
#define HID_KEYB_USAGE_KEYPAD_SLASH \
0x54
#define HID_KEYB_USAGE_KEYPAD_STAR \
0x55
#define HID_KEYB_USAGE_KEYPAD_MINUS \
0x56
#define HID_KEYB_USAGE_KEYPAD_PLUS \
0x57
#define HID_KEYB_USAGE_KEPAD_ENTER \
0x58
#define HID_KEYB_USAGE_KEYPAD_1 0x59
#define HID_KEYB_USAGE_KEYPAD_2 0x5A
#define HID_KEYB_USAGE_KEYPAD_3 0x5B
#define HID_KEYB_USAGE_KEYPAD_4 0x5C
#define HID_KEYB_USAGE_KEYPAD_5 0x5D
#define HID_KEYB_USAGE_KEYPAD_6 0x5E
#define HID_KEYB_USAGE_KEYPAD_7 0x5F
#define HID_KEYB_USAGE_KEYPAD_8 0x60
#define HID_KEYB_USAGE_KEYPAD_9 0x61
#define HID_KEYB_USAGE_KEYPAD_0 0x62
#define HID_KEYB_USAGE_KEPAD_PERIOD \
0x63
//*****************************************************************************
//
// HID descriptor country codes (most of these are described as "countries" in
// the HID specification even though they are really languages).
//
//*****************************************************************************
#define USB_HID_COUNTRY_NONE 0x00
#define USB_HID_COUNTRY_ARABIC 0x01
#define USB_HID_COUNTRY_BELGIAN 0x02
#define USB_HID_COUNTRY_CANADA_BI \
0x03
#define USB_HID_COUNTRY_CANADA_FR \
0x04
#define USB_HID_COUNTRY_CZECH_REPUBLIC \
0x05
#define USB_HID_COUNTRY_DANISH 0x06
#define USB_HID_COUNTRY_FINNISH 0x07
#define USB_HID_COUNTRY_FRENCH 0x08
#define USB_HID_COUNTRY_GERMAN 0x09
#define USB_HID_COUNTRY_GREEK 0x0A
#define USB_HID_COUNTRY_HEBREW 0x0B
#define USB_HID_COUNTRY_HUNGARY 0x0C
#define USB_HID_COUNTRY_INTERNATIONAL_ISO \
0x0D
#define USB_HID_COUNTRY_ITALIAN 0x0E
#define USB_HID_COUNTRY_JAPAN_KATAKANA \
0x0F
#define USB_HID_COUNTRY_KOREAN 0x10
#define USB_HID_COUNTRY_LATIN_AMERICAN \
0x11
#define USB_HID_COUNTRY_NETHERLANDS \
0x12
#define USB_HID_COUNTRY_NORWEGIAN \
0x13
#define USB_HID_COUNTRY_PERSIAN 0x14
#define USB_HID_COUNTRY_POLAND 0x15
#define USB_HID_COUNTRY_PORTUGUESE \
0x16
#define USB_HID_COUNTRY_RUSSIA 0x17
#define USB_HID_COUNTRY_SLOVAKIA \
0x18
#define USB_HID_COUNTRY_SPANISH 0x19
#define USB_HID_COUNTRY_SWEDISH 0x1A
#define USB_HID_COUNTRY_SWISS_FRENCH \
0x1B
#define USB_HID_COUNTRY_SWISS_GERMAN \
0x1C
#define USB_HID_COUNTRY_SWITZERLAND \
0x1D
#define USB_HID_COUNTRY_TAIWAN 0x1E
#define USB_HID_COUNTRY_TURKISH_Q \
0x1F
#define USB_HID_COUNTRY_UK 0x20
#define USB_HID_COUNTRY_US 0x21
#define USB_HID_COUNTRY_YUGOSLAVIA \
0x22
#define USB_HID_COUNTRY_TURKISH_F \
0x23
//*****************************************************************************
//
// Data flags used in Input item tags within report descriptors.
//
//*****************************************************************************
#define USB_HID_INPUT_DATA 0x0000
#define USB_HID_INPUT_CONSTANT 0x0001
#define USB_HID_INPUT_ARRAY 0x0000
#define USB_HID_INPUT_VARIABLE 0x0002
#define USB_HID_INPUT_ABS 0x0000
#define USB_HID_INPUT_RELATIVE 0x0004
#define USB_HID_INPUT_NOWRAP 0x0000
#define USB_HID_INPUT_WRAP 0x0008
#define USB_HID_INPUT_LINEAR 0x0000
#define USB_HID_INPUT_NONLINEAR 0x0010
#define USB_HID_INPUT_PREFER 0x0000
#define USB_HID_INPUT_NONPREFER 0x0020
#define USB_HID_INPUT_NONULL 0x0000
#define USB_HID_INPUT_NULL 0x0040
#define USB_HID_INPUT_BITF 0x0100
#define USB_HID_INPUT_BYTES 0x0000
//*****************************************************************************
//
// Data flags used in Feature item tags within report descriptors.
//
//*****************************************************************************
#define USB_HID_FEATURE_DATA 0x0000
#define USB_HID_FEATURE_CONSTANT \
0x0001
#define USB_HID_FEATURE_ARRAY 0x0000
#define USB_HID_FEATURE_VARIABLE \
0x0002
#define USB_HID_FEATURE_ABS 0x0000
#define USB_HID_FEATURE_RELATIVE \
0x0004
#define USB_HID_FEATURE_NOWRAP 0x0000
#define USB_HID_FEATURE_WRAP 0x0008
#define USB_HID_FEATURE_LINEAR 0x0000
#define USB_HID_FEATURE_NONLINEAR \
0x0010
#define USB_HID_FEATURE_PREFER 0x0000
#define USB_HID_FEATURE_NONPREFER \
0x0020
#define USB_HID_FEATURE_NONULL 0x0000
#define USB_HID_FEATURE_NULL 0x0040
#define USB_HID_FEATURE_BITF 0x0100
#define USB_HID_FEATURE_BYTES 0x0000
//*****************************************************************************
//
// Data flags used in Output item tags within report descriptors.
//
//*****************************************************************************
#define USB_HID_OUTPUT_DATA 0x0000
#define USB_HID_OUTPUT_CONSTANT 0x0001
#define USB_HID_OUTPUT_ARRAY 0x0000
#define USB_HID_OUTPUT_VARIABLE 0x0002
#define USB_HID_OUTPUT_ABS 0x0000
#define USB_HID_OUTPUT_RELATIVE 0x0004
#define USB_HID_OUTPUT_NOWRAP 0x0000
#define USB_HID_OUTPUT_WRAP 0x0008
#define USB_HID_OUTPUT_LINEAR 0x0000
#define USB_HID_OUTPUT_NONLINEAR \
0x0010
#define USB_HID_OUTPUT_PREFER 0x0000
#define USB_HID_OUTPUT_NONPREFER \
0x0020
#define USB_HID_OUTPUT_NONULL 0x0000
#define USB_HID_OUTPUT_NULL 0x0040
#define USB_HID_OUTPUT_BITF 0x0100
#define USB_HID_OUTPUT_BYTES 0x0000
//*****************************************************************************
//
// Physical descriptor bias values.
//
//*****************************************************************************
#define USB_HID_BIAS_NOT_APPLICABLE \
0x00
#define USB_HID_BIAS_RIGHT_HAND 0x01
#define USB_HID_BIAS_LEFT_HAND 0x02
#define USB_HID_BIAS_BOTH_HANDS 0x03
#define USB_HID_BIAS_EITHER_HAND \
0x04
//*****************************************************************************
//
// Physical descriptor designator values.
//
//*****************************************************************************
#define USB_HID_DESIGNATOR_NONE 0x00
#define USB_HID_DESIGNATOR_HAND 0x01
#define USB_HID_DESIGNATOR_EYEBALL \
0x02
#define USB_HID_DESIGNATOR_EYEBROW \
0x03
#define USB_HID_DESIGNATOR_EYELID \
0x04
#define USB_HID_DESIGNATOR_EAR 0x05
#define USB_HID_DESIGNATOR_NOSE 0x06
#define USB_HID_DESIGNATOR_MOUTH \
0x07
#define USB_HID_DESIGNATOR_UPPER_LIP \
0x08
#define USB_HID_DESIGNATOR_LOWER_LIP \
0x09
#define USB_HID_DESIGNATOR_JAW 0x0A
#define USB_HID_DESIGNATOR_NECK 0x0B
#define USB_HID_DESIGNATOR_UPPER_ARM \
0x0C
#define USB_HID_DESIGNATOR_ELBOW \
0x0D
#define USB_HID_DESIGNATOR_FOREARM \
0x0E
#define USB_HID_DESIGNATOR_WRIST \
0x0F
#define USB_HID_DESIGNATOR_PALM 0x10
#define USB_HID_DESIGNATOR_THUMB \
0x11
#define USB_HID_DESIGNATOR_INDEX_FINGER \
0x12
#define USB_HID_DESIGNATOR_MIDDLE_FINGER \
0x13
#define USB_HID_DESIGNATOR_RING_FINGER \
0x14
#define USB_HID_DESIGNATOR_LITTLE_FINGER \
0x15
#define USB_HID_DESIGNATOR_HEAD 0x16
#define USB_HID_DESIGNATOR_SHOULDER \
0x17
#define USB_HID_DESIGNATOR_HIP 0x18
#define USB_HID_DESIGNATOR_WAIST \
0x19
#define USB_HID_DESIGNATOR_THIGH \
0x1A
#define USB_HID_DESIGNATOR_KNEE 0x1B
#define USB_HID_DESIGNATOR_CALF 0x1C
#define USB_HID_DESIGNATOR_ANKLE \
0x1D
#define USB_HID_DESIGNATOR_FOOT 0x1E
#define USB_HID_DESIGNATOR_HEEL 0x1F
#define USB_HID_DESIGNATOR_BALL_OF_FOOT \
0x20
#define USB_HID_DESIGNATOR_BIG_TOE \
0x21
#define USB_HID_DESIGNATOR_SECOND_TOE \
0x22
#define USB_HID_DESIGNATOR_THIRD_TOE \
0x23
#define USB_HID_DESIGNATOR_FOURTH_TOE \
0x24
#define USB_HID_DESIGNATOR_LITTLE_TOE \
0x25
#define USB_HID_DESIGNATOR_BROW 0x26
#define USB_HID_DESIGNATOR_CHEEK \
0x27
//*****************************************************************************
//
// Physical descriptor qualifier values.
//
//*****************************************************************************
#define USB_HID_QUALIFIER_NOT_APPLICABLE \
(0x00 << 5)
#define USB_HID_QUALIFIER_RIGHT (0x01 << 5)
#define USB_HID_QUALIFIER_LEFT (0x02 << 5)
#define USB_HID_QUALIFIER_BOTH (0x03 << 5)
#define USB_HID_QUALIFIER_EITHER \
(0x04 << 5)
#define USB_HID_QUALIFIER_CENTER \
(0x05 << 5)
//*****************************************************************************
//
// This is the maximum value for a usage code.
//
//*****************************************************************************
#define USBH_HID_MAX_USAGE 256
#define USBH_HID_CAPS_ARRAY_SZ (USBH_HID_MAX_USAGE/sizeof(uint32_t))
//*****************************************************************************
//
// All structures defined in this section of the header require byte packing of
// fields. This is usually accomplished using the PACKED macro but, for IAR
// Embedded Workbench, this requires a pragma.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack(1)
#endif
//*****************************************************************************
//
//! The class descriptor information structure is used to announce the presence
//! of HID-specific class descriptors within the HID descriptor.
//
//*****************************************************************************
typedef struct
{
//
//! The type of HID class descriptor. This will be USB_HID_DTYPE_REPORT or
//! USB_HID_DTYPE_PHYSICAL.
//
uint8_t bDescriptorType;
//
//! The total length of the HID class descriptor.
//
uint16_t wDescriptorLength;
}
PACKED tHIDClassDescriptorInfo;
//*****************************************************************************
//
//! The HID descriptor is inserted following the interface descriptor and
//! before the endpoint descriptors for a HID class device.
//
//*****************************************************************************
typedef struct
{
//
//! The length of this descriptor in bytes.
//
uint8_t bLength;
//
//! The type of the descriptor. For a HID descriptor, this will be
//! USB_HID_DTYPE_HID (0x21).
//
uint8_t bDescriptorType;
//
//! A BCD value identifying the HID Class specification release supported
//! by the device. For version 1.11, for example, this value would be
//! 0x0111.
//
uint16_t bcdHID;
//
//! The country code for which this hardware is localized or 0 if no
//! localization has been performed. Valid country (or language) codes are
//! in labels of the form USB_HID_COUNTRY_xxx.
uint8_t bCountryCode;
//
//! The number of class-specific descriptors that exist for this device.
//! This indicates the number of class descriptor information structures
//! that are appended to this structure and must be at least 1 (since all
//! HID devices must publish at least 1 report descriptor).
//
uint8_t bNumDescriptors;
//
//! A table announcing each of the class-specific descriptors that this
//! device publishes. The actual number of entries in the array is given
//! by the bNumDescriptors field.
//
tHIDClassDescriptorInfo sClassDescriptor[1];
}
PACKED tHIDDescriptor;
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
//*****************************************************************************
//
//! This structure defines the mapping of USB usage identifiers to printable
//! characters. The structure has three members that hold this information.
//! The ui8BytesPerChar, indicates the number of bytes per character in
//! the table. The pui32CapsLock array holds a packed bit array of usage
//! identifiers that can be modified by the Caps Lock key. The pCharMapping
//! array is treated as a double indexed array with two "columns". In the case
//! of a single byte character it is treated as pairs of 8 bit values for
//! unshifted and shifted values. In the case of a double byte characters it
//! is treated as pairs of 16 bit values.
//
//*****************************************************************************
typedef struct
{
//
//! Number of bytes per character in the pCharMapping table of this
//! structure.
//
uint8_t ui8BytesPerChar;
//
//! This is a packed bitmasked structure with a one bit flags that
//! indicates if the corresponding Usage ID is affected by the Caps Lock
//! key.
//
uint32_t pui32CapsLock[USBH_HID_CAPS_ARRAY_SZ];
//
//! This is the indexed table of Usage ID to character value. It must be
//! at least ui8BytesPerChar * 2 * USBH_HID_MAX_USAGE bytes in size as it
//! is treated as a double indexed array.
//
void *pvCharMapping;
}
tHIDKeyboardUsageTable;
//*****************************************************************************
//
// The US Keyboard mapping used by USB keyboard usage ID to character mapping.
//
//*****************************************************************************
extern const tHIDKeyboardUsageTable g_sUSKeyboardMap;
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBHID_H__

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//*****************************************************************************
//
// usbkeyboardmap.c - This file holds the table to enable USB keyboard usage
// identifiers to be mapped to printable characters.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "usblib/usblib.h"
#include "usblib/usbhid.h"
//*****************************************************************************
//
// This is the array that hold the unshifted and shifted ASCII character for
// each usage ID.
//
//*****************************************************************************
const uint8_t g_pui8KeyBoardMap[USBH_HID_MAX_USAGE][2] =
{
//
// Usage ID to character mapping Usage ID CAPS Lock
//
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 0 - 3 0
{'a', 'A'}, {'b', 'B'}, {'c', 'C'}, {'d', 'D'}, // 4 - 7 f
{'e', 'E'}, {'f', 'F'}, {'g', 'G'}, {'h', 'H'}, // 8 - 11 f
{'i', 'I'}, {'j', 'J'}, {'k', 'K'}, {'l', 'L'}, // 12 - 15 f
{'m', 'M'}, {'n', 'N'}, {'o', 'O'}, {'p', 'P'}, // 16 - 19 f
{'q', 'Q'}, {'r', 'R'}, {'s', 'S'}, {'t', 'T'}, // 20 - 23 f
{'u', 'U'}, {'v', 'V'}, {'w', 'W'}, {'x', 'X'}, // 24 - 27 f
{'y', 'Y'}, {'z', 'Z'}, {'1', '!'}, {'2', '@'}, // 28 - 31 3
{'3', '#'}, {'4', '$'}, {'5', '%'}, {'6', '^'}, // 32 - 35 0
{'7', '&'}, {'8', '*'}, {'9', '('}, {'0', ')'}, // 36 - 39 0
{'\n', '\n'}, {0, 0}, {0, 0}, {'\t', '\t'}, // 40 - 43 0
{' ', ' '}, {'-', '_'}, {'=', '+'}, {'[', '{'}, // 44 - 47 0
{']', '}'}, {'\\', '|'},{'`', '~'}, {';', ':'}, // 48 - 51 0
{'\'', '"'}, {'`', '~'}, {',', '<'}, {'.', '>'},// 52 - 55 0
{'/', '?'}, {0, 0}, {0, 0}, {0, 0}, // 56 - 59 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 60 - 63 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 64 - 67 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 68 - 71 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 72 - 75 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 76 - 79 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 80 - 83 0
{'/', '/'}, {'*', '*'}, {'-', '-'}, {'+', '+'}, // 84 - 87 0
{'\n', '\n'}, {'1', 0}, {'2', 0}, {'3', 0}, // 88 - 91 0
{'4', 0}, {'5', 0}, {'6', 0}, {'7', 0}, // 92 - 95 0
{'8', 0}, {'9', 0}, {'0', 0}, {'.', 0}, // 96 - 99 0
{'\\', '|'},{0, 0}, {0, 0}, {'=', '+'}, // 100 - 103 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 104 - 107 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 108 - 111 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 112 - 115 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 116 - 119 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 120 - 123 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 124 - 127 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 128 - 131 0
{0, 0}, {',', ','}, {'=', '='}, {0, 0}, // 132 - 135 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 136 - 139 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 140 - 143 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 144 - 147 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 148 - 151 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 152 - 155 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 156 - 159 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 160 - 163 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 164 - 167 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 168 - 171 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 172 - 175 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 174 - 179 0
{0, 0}, {0, 0}, {'(', '('}, {')', ')'}, // 180 - 183 0
{'{', '{'}, {'}', '}'}, {'\t', '\t'}, {0, 0}, // 184 - 187 0
{'A', 'A'}, {'B', 'B'}, {'C', 'C'}, {'D', 'D'}, // 188 - 191 0
{'E', 'E'}, {'F', 'F'}, {0, 0}, {'^', '^'}, // 192 - 195 0
{'%', '%'}, {'<', '<'}, {'>', '>'}, {'&', '&'}, // 196 - 199 0
{'&', '&'}, {'|', '|'}, {'|', '|'}, {':', ':'}, // 200 - 203 0
{'#', '#'}, {' ', ' '}, {'@', '@'}, {'!', '!'}, // 204 - 207 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 208 - 211 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 212 - 215 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 216 - 219 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 220 - 223 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 224 - 227 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 228 - 231 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 232 - 235 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 236 - 239 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 240 - 243 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 244 - 247 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 248 - 251 0
{0, 0}, {0, 0}, {0, 0}, {0, 0}, // 252 - 255 0
};
//*****************************************************************************
//
// This is the structure that defines the mapping of USB usage IDs to ASCII
// values for printing.
//
//*****************************************************************************
const tHIDKeyboardUsageTable g_sUSKeyboardMap =
{
//
// One byte per character.
//
1,
//
// Packed bit array of usages codes that are effected by Caps Lock state.
//
{
0x3ffffff0, // Alpha characters are only one affected by CAPS LOCK
0x00000000,
0x00000000,
0x00000000,
0x00000000,
0x00000000,
0x00000000,
0x00000000,
},
//
// The large table of the direct mapping of usage id's to ascii characters.
//
(void *)g_pui8KeyBoardMap
};

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//*****************************************************************************
//
// usblibpriv.h - Private header file used to share internal variables and
// function prototypes between the various modules in the USB
// library. This header MUST NOT be used by application code.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBLIBPRIV_H__
#define __USBLIBPRIV_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
//! \addtogroup usblib_dma_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Internal interrupt handlers called from the main vectors in device and
// host mode.
//
//*****************************************************************************
extern void USBDeviceIntHandlerInternal(uint32_t ui32Index,
uint32_t ui32Status);
extern void USBHostIntHandlerInternal(uint32_t ui32Index, uint32_t ui32Status);
//*****************************************************************************
//
// The maximum number of tick handlers that can be registered in a system.
//
//*****************************************************************************
#define MAX_USB_TICK_HANDLERS 6
//*****************************************************************************
//
// This value defines the number of SOF ticks that must pass before a call
// is made to InternalUSBStartOfFrameTick. The value 5 ensures that the
// function is called every 5 milliseconds assuming that SOF interrupts are
// enabled and SOF is present.
//
//*****************************************************************************
#define USB_SOF_TICK_DIVIDE 5
//*****************************************************************************
//
// Tick handler function pointer type.
//
//*****************************************************************************
typedef void(* tUSBTickHandler)(void *pvInstance, uint32_t ui32TicksmS);
//*****************************************************************************
//
// Internal functions use to initialize the tick handler and register tick
// callbacks.
//
//*****************************************************************************
extern void InternalUSBTickInit(void);
extern void InternalUSBTickReset(void);
extern int32_t InternalUSBRegisterTickHandler(tUSBTickHandler pfnHandler,
void *pvInstance);
extern void InternalUSBStartOfFrameTick(uint32_t ui32TicksmS);
extern void InternalUSBHCDSendEvent(uint32_t ui32Index, tEventInfo *psEvent,
uint32_t ui32EvFlag);
//*****************************************************************************
//
// g_ui32CurrentUSBTick holds the elapsed time in milliseconds since the
// tick module was first initialized based on calls to the function
// InternalUSBStartOfFrameTick. The granularity is USB_SOF_TICK_DIVIDE
// milliseconds.
//
//*****************************************************************************
extern uint32_t g_ui32CurrentUSBTick;
//*****************************************************************************
//
// g_ui32USBSOFCount is a global counter for Start of Frame interrupts. It is
// incremented by the low level device- or host-mode interrupt handlers.
//
//*****************************************************************************
extern uint32_t g_ui32USBSOFCount;
//*****************************************************************************
//
// InternalUSBGetTime is a macro which will return the system time in
// milliseconds as calculated based on calls to the function
// InternalUSBStartOfFrameTick. The granularity is USB_SOF_TICK_DIVIDE
// milliseconds.
//
// Currently, this merely returns the value of a global variable.
//
//*****************************************************************************
#define InternalUSBGetTime() g_ui32CurrentUSBTick
//*****************************************************************************
//
// Macros to convert between USB controller base address and an index. These
// are currently trivial but are included to allow for the possibility of
// supporting more than one controller in the future.
//
//*****************************************************************************
#define USBBaseToIndex(BaseAddr)(0)
#define USBIndexToBase(Index) (USB0_BASE)
//
// Maximum number of channels for Type 0 USB controllers.
//
#define USB_MAX_DMA_CHANNELS_0 6
//
// Maximum number of channels for all other USB controllers.
//
#define USB_MAX_DMA_CHANNELS 8
//*****************************************************************************
//
// Values returned by the USBLibDMAChannelStatus() function.
//
//*****************************************************************************
#define USBLIBSTATUS_DMA_IDLE 0x00000000
#define USBLIBSTATUS_DMA_COMPLETE \
0x00000001
#define USBLIBSTATUS_DMA_ERROR 0x00000002
#define USBLIBSTATUS_DMA_PENDING \
0x00000004
//*****************************************************************************
//
// DMA endpoint types used with the USBLibDMAChannelAllocate() function.
//
//*****************************************************************************
#define USB_DMA_EP_RX 0x00000080
#define USB_DMA_EP_TX 0x00000000
#define USB_DMA_EP_HOST 0x00000040
#define USB_DMA_EP_DEVICE 0x00000000
#define USB_DMA_EP_TYPE_CTRL 0x00000000
#define USB_DMA_EP_TYPE_ISOC 0x00000001
#define USB_DMA_EP_TYPE_BULK 0x00000002
#define USB_DMA_EP_TYPE_INT 0x00000003
#define USB_DMA_EP_TYPE_M 0x00000003
//*****************************************************************************
//
// This is the internal instance data for the DMA functions and should not
// be modified outside the usbdma.c file.
//
//*****************************************************************************
struct tUSBDMAInstance
{
uint32_t ui32Base;
uint32_t ui32IntNum;
uint32_t pui32Config[USB_MAX_DMA_CHANNELS];
uint32_t pui32MaxPacketSize[USB_MAX_DMA_CHANNELS];
uint32_t *ppui32Data[USB_MAX_DMA_CHANNELS];
uint32_t pui32Count[USB_MAX_DMA_CHANNELS];
uint8_t pui8Endpoint[USB_MAX_DMA_CHANNELS];
uint32_t pui32EPDMAMode0[USB_MAX_DMA_CHANNELS];
uint32_t pui32EPDMAMode1[USB_MAX_DMA_CHANNELS];
uint32_t ui32Pending;
uint32_t ui32Complete;
void (* pfnArbSizeSet)(tUSBDMAInstance *psUSBDMAInst, uint32_t ui32Channel,
uint32_t ui32ArbSize);
uint32_t (* pfnChannelAllocate)(tUSBDMAInstance *psUSBDMAInst,
uint8_t ui8Endpoint,
uint32_t ui32MaxPacketSize,
uint32_t ui32Config);
void (* pfnChannelEnable)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel);
void (* pfnChannelDisable)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel);
void (* pfnChannelRelease)(tUSBDMAInstance *psUSBDMAInst,
uint8_t ui8Endpoint);
uint32_t (* pfnChannelStatus)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel);
void (* pfnChannelIntDisable)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel);
void (* pfnChannelIntEnable)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel);
void (* pfnIntHandler)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Status);
uint32_t (* pfnIntStatus)(tUSBDMAInstance *psUSBDMAInst);
void (* pfnIntStatusClear)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Status);
uint32_t (* pfnStatus)(tUSBDMAInstance *psUSBDMAInst);
uint32_t (* pfnTransfer)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel, void *pvBuffer,
uint32_t ui32Size);
void (* pfnUnitSizeSet)(tUSBDMAInstance *psUSBDMAInst,
uint32_t ui32Channel,
uint32_t ui32BitSize);
};
//*****************************************************************************
//
// These are the USB libraries DMA functions.
//
//*****************************************************************************
extern tUSBDMAInstance * USBLibDMAInit(uint32_t ui32Index);
//*****************************************************************************
//
//! This function returns the current DMA status for a given DMA channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel number used to retrieve the DMA
//! status.
//!
//! This function returns the current status of a DMA transfer on a given
//! DMA channel. The DMA channel is specified by the \e ui32Channel parameter.
//!
//! \return This function returns one of the \b USBLIBSTATUS_DMA_* values.
//
//*****************************************************************************
#define USBLibDMAChannelStatus(psUSBDMAInst, ui32Channel) \
psUSBDMAInst->pfnChannelStatus(psUSBDMAInst, ui32Channel)
//*****************************************************************************
//
//! This function is used to return any global status information for USB DMA.
//!
//! \param psUSBDMAInst is a generic instance pointer that can be used to
//! distinguish between different hardware instances.
//!
//! This function performs returns the global status for the USB DMA
//! interface.
//!
//! \return Always returns 0.
//
//*****************************************************************************
#define USBLibDMAStatus(psUSBDMAInst) psUSBDMAInst->pfnStatus(psUSBDMAInst)
//*****************************************************************************
//
//! This function returns the current DMA interrupt status.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//!
//! This function returns the interrupt status for all DMA channels. The value
//! returned is a per channel interrupt mapping with the DMA channels mapped
//! into bits 0-31 by channel number with channel 1 starting at bit 0.
//!
//! \note This function does not return an endpoint interrupt status, but the
//! interrupt status for the DMA interface used with the USB controller.
//!
//! \return This function returns the pending DMA interrupts.
//
//*****************************************************************************
#define USBLibDMAIntStatus(psUSBDMAInst) \
psUSBDMAInst->pfnIntStatus(psUSBDMAInst)
//*****************************************************************************
//
//! This function clears the requested DMA interrupt status.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Status contains the interrupts to clear.
//!
//! This function clears the current DMA interrupt status for the
//! controller specified by the \e ui32Instance parameter. The \e ui32Status
//! value has the same format as the value returned from the
//! USBLibDMAIntStatus() function which is a per channel interrupt mapping.
//! The DMA channels are mapped into bits 0-31 by channel number with channel 1
//!starting at bit 0.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAIntStatusClear(psUSBDMAInst, ui32Status) \
psUSBDMAInst->pfnIntStatusClear(psUSBDMAInst, ui32Status)
//*****************************************************************************
//
//! This function enables DMA for a given channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel to enable.
//!
//! This function enables DMA on the channel number passed in the
//! \e ui32Channel parameter.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAChannelEnable(psUSBDMAInst, ui32Channel) \
psUSBDMAInst->pfnChannelEnable(psUSBDMAInst, ui32Channel)
//*****************************************************************************
//
//! This function disables DMA for a given DMA channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel to disable.
//!
//! This function disables DMA on the channel number passed in the
//!\e ui32Channel parameter.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAChannelDisable(psUSBDMAInst, ui32Channel) \
psUSBDMAInst->pfnChannelDisable(psUSBDMAInst, ui32Channel)
//*****************************************************************************
//
//! This function is configures a USB transfer on a given DMA channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel to use.
//! \param pvBuffer is a pointer to the buffer to use for the transfer.
//! \param ui32Size is the size of the data to be transferred in bytes.
//!
//! This function is called to configure a transfer using the USB
//! controller depending on the parameters. The \e ui32Channel parameter
//! holds the channel number to use for this transfer which must have already
//! been allocated with a call to the USBLibDMAChannelAllocate() function. The
//! transaction is configured to transfer \e ui32Size bytes to/from the buffer
//! held in the \e pvBuffer pointer.
//!
//! \return This function returns the number of bytes scheduled to be
//! transferred.
//
//*****************************************************************************
#define USBLibDMATransfer(psUSBDMAInst, ui32Channel, pvBuffer, ui32Size) \
psUSBDMAInst->pfnTransfer(psUSBDMAInst, ui32Channel, \
pvBuffer, ui32Size)
//*****************************************************************************
//
//! This function is called by the USB interrupt handler.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Status is the DMA interrupt status.
//!
//! This function is called by the USB interrupt handler to allow the DMA
//! interface to handle interrupts outside of the context of the normal USB
//! interrupt handler. The \e ui32Status is the current DMA interrupt status
//! at the time of the USB interrupt. Since some DMA controller interrupts are
//! cleared automatically when read, this value must be retrieved by calling
//! the USBLibDMAIntStatus() function and passed into this function.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAIntHandler(psUSBDMAInst, ui32Status) \
psUSBDMAInst->pfnIntHandler(psUSBDMAInst, ui32Status)
//*****************************************************************************
//
//! This function is used to assign a DMA channel to an endpoint.
//!
//! \param psUSBDMAInst is the DMA instance data for a USB controller.
//! \param ui8Endpoint is the endpoint number to assign a DMA channel.
//! \param ui32MaxPacketSize is the maximum packet size for the endpoint
//! assigned that is being assigned to the DMA channel.
//! \param ui32Config are the basic configuration options for the DMA channel.
//!
//! This function assigns a DMA channel to a given endpoint. The
//! \e ui8Endpoint parameter is the zero based endpoint number that is assigned
//! a DMA channel. The \e ui32Config parameter contains any configuration
//! options for the DMA channel. The current options include the following:
//! - \b USB_DMA_EP_TX - this request is for a transmit DMA channel.
//! - \b USB_DMA_EP_RX - this request is for a receive DMA channel.
//!
//! \note The maximum number of available DMA channels to endpoints varies
//! between devices.
//!
//! \return Zero or the DMA channel assigned to the endpoint.
//
//*****************************************************************************
#define USBLibDMAChannelAllocate(psUSBDMAInst, ui8Endpoint, ui32MaxPacketSize,\
ui32Config) \
psUSBDMAInst->pfnChannelAllocate(psUSBDMAInst, \
ui8Endpoint, \
ui32MaxPacketSize, \
ui32Config)
//*****************************************************************************
//
//! This function is used to free a DMA channel that was assigned to an
//! endpoint.
//!
//! \param psUSBDMAInst is the DMA instance data for a USB controller.
//! \param ui8Endpoint is the DMA channel number to free up.
//!
//! This function frees up a DMA channel that was allocated to an endpoint
//! by the USBLibDMAChannelAllocate() function.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAChannelRelease(psUSBDMAInst, ui8Endpoint) \
psUSBDMAInst->pfnChannelRelease(psUSBDMAInst, ui8Endpoint)
//*****************************************************************************
//
//! This function is used to set the individual transfer size of a DMA channel.
//!
//! \param psUSBDMAInst is the DMA instance data for a USB controller.
//! \param ui32Channel is the DMA channel number to modify.
//! \param ui32BitSize is the individual transfer size in bits(8, 16 or 32).
//!
//! This function configures the individual transfer size of the DMA channel
//! provided in the \e ui32Channel parameter. The \e ui32Channel must already
//! be allocated to an endpoint by calling the USBLibDMAChannelAllocate()
//! function. The \e ui32BitSize parameter should be on of the following
//! values: 8, 16 or 32.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAUnitSizeSet(psUSBDMAInst, ui32Channel, ui32BitSize) \
psUSBDMAInst->pfnUnitSizeSet(psUSBDMAInst, ui32Channel, \
ui32BitSize);
//*****************************************************************************
//
//! This function is used to set the arbitration size for a DMA channel.
//!
//! \param psUSBDMAInst is the DMA instance data for a USB controller.
//! \param ui32Channel is the DMA channel number to modify.
//! \param ui32ArbSize is the transfer arbitration size in bytes.
//!
//! This function configures the individual transfer size of the DMA channel
//! provided in the \e ui32Channel parameter. The \e ui32Channel must already
//! be allocated to an endpoint by calling the USBLibDMAChannelAllocate()
//! function.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAArbSizeSet(psUSBDMAInst, ui32Channel, ui32ArbSize) \
psUSBDMAInst->pfnArbSizeSet(psUSBDMAInst, ui32Channel, \
ui32ArbSize);
//*****************************************************************************
//
//! This function enables the DMA interrupt for a given channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel interrupt to enable.
//!
//! This function enables DMA interrupt on the channel number passed in the
//! \e ui32Channel parameter.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAChannelIntEnable(psUSBDMAInst, ui32Channel) \
psUSBDMAInst->pfnChannelIntEnable(psUSBDMAInst, ui32Channel)
//*****************************************************************************
//
//! This function disables DMA interrupt for a given DMA channel.
//!
//! \param psUSBDMAInst is the DMA structure pointer for this instance.
//! \param ui32Channel is the DMA channel interrupt to disable.
//!
//! This function disables the DMA interrupt on the channel number passed in
//! the \e ui32Channel parameter.
//!
//! \return None.
//
//*****************************************************************************
#define USBLibDMAChannelIntDisable(psUSBDMAInst, ui32Channel) \
psUSBDMAInst->pfnChannelIntDisable(psUSBDMAInst, ui32Channel)
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
#endif // __USBLIBPRIV_H__

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//*****************************************************************************
//
// usbmsc.h - Generic types and defines use by the mass storage class.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#ifndef __USBMSC_H__
#define __USBMSC_H__
//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif
//*****************************************************************************
//
// The request for the maximum number of logical units on a mass storage
// device.
//
//*****************************************************************************
#define USBREQ_GET_MAX_LUN 0xfe
//*****************************************************************************
//
// The signatures defined by USB MSC class specification.
//
//*****************************************************************************
#define CBW_SIGNATURE 0x43425355
#define CSW_SIGNATURE 0x53425355
//*****************************************************************************
//
// Flag for the bmCBWFlags member of tMSCCBW
//
//*****************************************************************************
#define CBWFLAGS_DIR_M 0x80
#define CBWFLAGS_DIR_IN 0x80
#define CBWFLAGS_DIR_OUT 0x00
//*****************************************************************************
//
// All structures defined in this section of the header require byte packing of
// fields. This is usually accomplished using the PACKED macro but, for IAR
// Embedded Workbench, this requries a pragma.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack(1)
#endif
//*****************************************************************************
//
// The following packed structure is used to access the Command Block Wrapper
// (CBW) data structure that is used when communicating with USB Mass Storage
// Class devices.
//
//*****************************************************************************
typedef struct
{
//
// Signature that helps identify this data packet as a CBW. The signature
// field shall contain the value 0x43425355 (little endian), indicating a
// CBW.
//
uint32_t dCBWSignature;
//
// The Command Block Tag sent by the host controller. The device shall
// echo the contents of this field back to the host in the dCSWTag field
// of the associated CSW. The dCSWTag positively associates a CSW with the
// corresponding CBW.
//
uint32_t dCBWTag;
//
// The number of bytes of data that the host expects to transfer on the
// Bulk-In or Bulk-Out endpoint (as indicated by the Direction bit) during
// the execution of this command. If this field is zero, the device and
// the host will not transfer data between the CBW and the associated CSW,
// and the device will ignore the value of the Direction bit in
// bmCBWFlags.
//
uint32_t dCBWDataTransferLength;
//
// The device will ignore these bits if the dCBWDataTransferLength value
// is set to 0.
//
// The bits of this field are defined as follows:
// Bit 7 Direction
// 0 = Data-Out from host to the device,
// 1 = Data-In from the device to the host.
// Bit 6 Obsolete - The host shall set this bit to zero.
// Bits 5..0 Reserved - the host shall set these bits to zero.
//
uint8_t bmCBWFlags;
//
// The device Logical Unit Number (LUN) to which the command block is being
// sent. For devices that support multiple LUNs, the host shall place into
// this field the LUN to which this command block is addressed. Otherwise,
// the host shall set this field to zero.
//
uint8_t bCBWLUN;
//
// The valid length of the CBWCB in bytes. This defines the valid length
// of the command block. The only legal values are 1 through 16. All
// other values are reserved.
//
uint8_t bCBWCBLength;
//
// This array holds the command block to be executed by the device. The
// MSC device will interpret the first bCBWCBLength bytes in this field as
// a command block as defined by the command set identified by
// bInterfaceSubClass. If the command set supported by the device uses
// command blocks of fewer than 16 bytes in length, the significant bytes
// shall be transferred first, beginning with the byte at offset 15. The
// device will ignore the content of the CBWCB field past the byte at
// offset (15 + bCBWCBLength - 1).
//
uint8_t CBWCB[16];
}
PACKED tMSCCBW;
//*****************************************************************************
//
// Flags for the bCSWStatus member of tMSCCSW
//
//*****************************************************************************
#define CSWSTATUS_CMD_SUCCESS 0
#define CSWSTATUS_CMD_FAILED 1
#define CSWSTATUS_PHASE_ERROR 2
//*****************************************************************************
//
// This structure encapsulates the Command Status Word (CSW) structure that is
// sent in response to all CBW commands.
//
//*****************************************************************************
typedef struct
{
//
// Signature that identifies this data packet as a CSW. The signature
// field must contain the value 53425355h (little endian) to indicate CSW.
//
uint32_t dCSWSignature;
//
// The device will set this field to the value received in the dCBWTag of
// the associated CBW.
//
uint32_t dCSWTag;
//
// For OUT transactions the device will fill the dCSWDataResidue field with
// the difference between the amount of data expected as stated in the
// dCBWDataTransferLength, and the actual amount of data processed by the
// device. For IN transactions the device will fill the dCSWDataResidue
// field with the difference between the amount of data expected as stated
// in the dCBWDataTransferLength and the actual amount of relevant data
// sent by the device. The dCSWDataResidue will not exceed the value sent
// in the dCBWDataTransferLength.
//
uint32_t dCSWDataResidue;
//
// The bCSWStatus field indicates the success or failure of the command.
// The device shall set this byte to zero if the command completed
// successfully. A non-zero value shall indicate a failure during command
// execution.
//
uint8_t bCSWStatus;
}
PACKED tMSCCSW;
//*****************************************************************************
//
// Return to default packing when using the IAR Embedded Workbench compiler.
//
//*****************************************************************************
#ifdef ewarm
#pragma pack()
#endif
//*****************************************************************************
//
// SCSI Command return codes.
//
//*****************************************************************************
#define SCSI_CMD_STATUS_PASS 0x00
#define SCSI_CMD_STATUS_FAIL 0x01
//*****************************************************************************
//
// SCSI commands.
//
//*****************************************************************************
#define SCSI_TEST_UNIT_READY 0x00
#define SCSI_REQUEST_SENSE 0x03
#define SCSI_INQUIRY_CMD 0x12
#define SCSI_MODE_SENSE_6 0x1a
#define SCSI_READ_CAPACITIES 0x23
#define SCSI_READ_CAPACITY 0x25
#define SCSI_READ_10 0x28
#define SCSI_WRITE_10 0x2a
//*****************************************************************************
//
// SCSI Test Unit Ready definitions.
//
//*****************************************************************************
//*****************************************************************************
//
// SCSI Inquiry command definitions.
//
//*****************************************************************************
//*****************************************************************************
//
// Size of the SCSI inquiry response data.
//
//*****************************************************************************
#define SCSI_INQUIRY_DATA_SZ 36
//*****************************************************************************
//
// Offset 0 of the Inquiry Data.
//
//*****************************************************************************
#define SCSI_INQ_PQ_M 0xe0 // Peripheral Qualifier Mask.
#define SCSI_INQ_PQ_CNCT 0x00 // Device connected.
#define SCSI_INQ_PQ_DISC 0x20 // Device disconnected.
#define SCSI_INQ_PDT_M 0x1f // Peripheral Device Type Mask.
#define SCSI_INQ_PDT_SBC 0x00 // Direct Access device.
//*****************************************************************************
//
// Offset 1 of the Inquiry Data.
//
//*****************************************************************************
#define SCSI_INQ_RMB 0x80 // Device is removable.
//*****************************************************************************
//
// Macro to check if removeable.
//
//*****************************************************************************
#define SCSIIsRemovable(pData) \
(((uint8_t *)pData)[1] & SCSI_INQ_RMB)
//*****************************************************************************
//
// SCSI Read Capacity definitions.
//
//*****************************************************************************
//*****************************************************************************
//
// Size of the SCSI Read Capacity response data.
//
//*****************************************************************************
#define SCSI_READ_CAPACITY_SZ 0x08
//*****************************************************************************
//
// SCSI Mode Sense definitions, these are passed in via the ui32Flags parameter
// of the SCSIModeSense() function call.
//
//*****************************************************************************
//*****************************************************************************
//
// Disable block descriptors.
//
//*****************************************************************************
#define SCSI_MS_DBD 0x00000800
//*****************************************************************************
//
// Page Code values, used in combination with Page Control values.
//
//*****************************************************************************
#define SCSI_MS_PC_VENDOR 0x00000000
#define SCSI_MS_PC_DISCO 0x00020000
#define SCSI_MS_PC_CONTROL 0x000a0000
#define SCSI_MS_PC_LUN 0x00180000
#define SCSI_MS_PC_PORT 0x00190000
#define SCSI_MS_PC_POWER 0x001a0000
#define SCSI_MS_PC_INFORM 0x001c0000
#define SCSI_MS_PC_ALL 0x003f0000
//*****************************************************************************
//
// Page Control values.
//
//*****************************************************************************
#define SCSI_MS_PC_CURRENT 0x00000000
#define SCSI_MS_PC_CHANGEABLE 0x00400000
#define SCSI_MS_PC_DEFAULT 0x00800000
#define SCSI_MS_PC_SAVED 0x00c00000
//*****************************************************************************
//
// Request Sense Definitions.
//
//*****************************************************************************
//*****************************************************************************
//
// Size of the data returned by the Request Sense command.
//
//*****************************************************************************
#define SCSI_REQUEST_SENSE_SZ 18
#define SCSI_RS_SKEY 2 // Sense Key offset.
#define SCSI_RS_SKEY_AD_SKEY 12 // Additional Sense Key offset.
//*****************************************************************************
//
// Offset 0 in the Request Sense response.
//
//*****************************************************************************
#define SCSI_RS_VALID 0x80 // Response is valid.
#define SCSI_RS_CUR_ERRORS 0x70 // Current errors returned.
#define SCSI_RS_DEFER_ERRORS 0x71 // Deferred errors returned.
//*****************************************************************************
//
// Offset 2 in the Request Sense response.
//
//*****************************************************************************
#define SCSI_RS_KEY_M 0x0f // Sense Key.
#define SCSI_RS_KEY_NO_SENSE 0x00 // No Sense Data.
#define SCSI_RS_KEY_RECOVRD_ERR 0x01 // Recovered Error.
#define SCSI_RS_KEY_NOT_READY 0x02 // Not Ready.
#define SCSI_RS_KEY_MEDIUM_ERR 0x03 // Error in the media.
#define SCSI_RS_KEY_HW_ERR 0x04 // Hardware Error, non recoverable.
#define SCSI_RS_KEY_ILGL_RQST 0x05 // Illegal request.
#define SCSI_RS_KEY_UNIT_ATTN 0x06 // Unit changed or reset.
#define SCSI_RS_KEY_DATA_PROT 0x07 // Write Protect error.
#define SCSI_RS_KEY_BLANK_CHK 0x08 // Write once error, block not clear.
#define SCSI_RS_KEY_ABORT 0x0b // Last command was aborted.
#define SCSI_RS_ILI 0x20 // Incorrect length indicator.
#define SCSI_RS_EOM 0x40 // End of medium condition.
#define SCSI_RS_FILEMARK 0x80 // Command has read a filemark/setmark.
#define SCSI_RS_MED_NOT_PRSNT 0x003a // Medium not present.
#define SCSI_RS_MED_NOTRDY2RDY 0x0028 // Not ready to ready transition.
#define SCSI_RS_PV_INVALID 0x0226 // Parameter Value Invalid.
//*****************************************************************************
//
// Additional information for SCSI_RS_KEY_NOT_READY
//
//*****************************************************************************
#define SCSI_RS_KEY_NOTPRSNT 0x3A // Media Not Present.
//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif
#endif // __USBMSC_H__

715
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//*****************************************************************************
//
// usbringbuf.c - USB library ring buffer management utilities.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/interrupt.h"
#include "usblib/usblib.h"
//*****************************************************************************
//
//! \addtogroup usblib_buffer_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// Define NULL, if not already defined.
//
//*****************************************************************************
#ifndef NULL
#define NULL ((void *)0)
#endif
//*****************************************************************************
//
// Change the value of a variable atomically.
//
// \param pui32Val points to the index whose value is to be modified.
// \param ui32Delta is the number of bytes to increment the index by.
// \param ui32Size is the size of the buffer the index refers to.
//
// This function is used to increment a read or write buffer index that may be
// written in various different contexts. It ensures that the
// read/modify/write sequence is not interrupted and, hence, guards against
// corruption of the variable. The new value is adjusted for buffer wrap.
//
// \return None.
//
//*****************************************************************************
static void
UpdateIndexAtomic(volatile uint32_t *pui32Val, uint32_t ui32Delta,
uint32_t ui32Size)
{
bool bIntsOff;
//
// Turn interrupts off temporarily.
//
bIntsOff = IntMasterDisable();
//
// Update the variable value.
//
*pui32Val += ui32Delta;
//
// Correct for wrap. We use a loop here since we don't want to use a
// modulus operation with interrupts off but we don't want to fail in
// case ui32Delta is greater than ui32Size (which is extremely unlikely
// but...)
//
while(*pui32Val >= ui32Size)
{
*pui32Val -= ui32Size;
}
//
// Restore the interrupt state
//
if(!bIntsOff)
{
IntMasterEnable();
}
}
//*****************************************************************************
//
//! Determines whether a ring buffer is full or not.
//!
//! \param psUSBRingBuf is the ring buffer object to empty.
//!
//! This function is used to determine whether or not a given ring buffer is
//! full. The structure is specifically to ensure that we do not see
//! warnings from the compiler related to the order of volatile accesses
//! being undefined.
//!
//! \return Returns \b true if the buffer is full or \b false otherwise.
//
//*****************************************************************************
bool
USBRingBufFull(tUSBRingBufObject *psUSBRingBuf)
{
uint32_t ui32Write;
uint32_t ui32Read;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Copy the Read/Write indices for calculation.
//
ui32Write = psUSBRingBuf->ui32WriteIndex;
ui32Read = psUSBRingBuf->ui32ReadIndex;
//
// Return the full status of the buffer.
//
return((((ui32Write + 1) % psUSBRingBuf->ui32Size) == ui32Read) ? true :
false);
}
//*****************************************************************************
//
//! Determines whether a ring buffer is empty or not.
//!
//! \param psUSBRingBuf is the ring buffer object to empty.
//!
//! This function is used to determine whether or not a given ring buffer is
//! empty. The structure is specifically to ensure that we do not see
//! warnings from the compiler related to the order of volatile accesses
//! being undefined.
//!
//! \return Returns \b true if the buffer is empty or \b false otherwise.
//
//*****************************************************************************
bool
USBRingBufEmpty(tUSBRingBufObject *psUSBRingBuf)
{
uint32_t ui32Write;
uint32_t ui32Read;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Copy the Read/Write indices for calculation.
//
ui32Write = psUSBRingBuf->ui32WriteIndex;
ui32Read = psUSBRingBuf->ui32ReadIndex;
//
// Return the empty status of the buffer.
//
return((ui32Write == ui32Read) ? true : false);
}
//*****************************************************************************
//
//! Empties the ring buffer.
//!
//! \param psUSBRingBuf is the ring buffer object to empty.
//!
//! Discards all data from the ring buffer.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufFlush(tUSBRingBufObject *psUSBRingBuf)
{
bool bIntsOff;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Set the Read/Write pointers to be the same. Do this with interrupts
// disabled to prevent the possibility of corruption of the read index.
//
bIntsOff = IntMasterDisable();
psUSBRingBuf->ui32ReadIndex = psUSBRingBuf->ui32WriteIndex;
if(!bIntsOff)
{
IntMasterEnable();
}
}
//*****************************************************************************
//
//! Returns number of bytes stored in ring buffer.
//!
//! \param psUSBRingBuf is the ring buffer object to check.
//!
//! This function returns the number of bytes stored in the ring buffer.
//!
//! \return Returns the number of bytes stored in the ring buffer.
//
//*****************************************************************************
uint32_t
USBRingBufUsed(tUSBRingBufObject *psUSBRingBuf)
{
uint32_t ui32Write;
uint32_t ui32Read;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Copy the Read/Write indices for calculation.
//
ui32Write = psUSBRingBuf->ui32WriteIndex;
ui32Read = psUSBRingBuf->ui32ReadIndex;
//
// Return the number of bytes contained in the ring buffer.
//
return((ui32Write >= ui32Read) ? (ui32Write - ui32Read) :
(psUSBRingBuf->ui32Size - (ui32Read - ui32Write)));
}
//*****************************************************************************
//
//! Returns number of bytes available in a ring buffer.
//!
//! \param psUSBRingBuf is the ring buffer object to check.
//!
//! This function returns the number of bytes available in the ring buffer.
//!
//! \return Returns the number of bytes available in the ring buffer.
//
//*****************************************************************************
uint32_t
USBRingBufFree(tUSBRingBufObject *psUSBRingBuf)
{
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Return the number of bytes available in the ring buffer.
//
return((psUSBRingBuf->ui32Size - 1) - USBRingBufUsed(psUSBRingBuf));
}
//*****************************************************************************
//
//! Returns number of contiguous bytes of data stored in ring buffer ahead of
//! the current read pointer.
//!
//! \param psUSBRingBuf is the ring buffer object to check.
//!
//! This function returns the number of contiguous bytes of data available in
//! the ring buffer ahead of the current read pointer. This represents the
//! largest block of data which does not straddle the buffer wrap.
//!
//! \return Returns the number of contiguous bytes available.
//
//*****************************************************************************
uint32_t
USBRingBufContigUsed(tUSBRingBufObject *psUSBRingBuf)
{
uint32_t ui32Write;
uint32_t ui32Read;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Copy the Read/Write indices for calculation.
//
ui32Write = psUSBRingBuf->ui32WriteIndex;
ui32Read = psUSBRingBuf->ui32ReadIndex;
//
// Return the number of contiguous bytes available.
//
return((ui32Write >= ui32Read) ? (ui32Write - ui32Read) :
(psUSBRingBuf->ui32Size - ui32Read));
}
//*****************************************************************************
//
//! Returns number of contiguous free bytes available in a ring buffer.
//!
//! \param psUSBRingBuf is the ring buffer object to check.
//!
//! This function returns the number of contiguous free bytes ahead of the
//! current write pointer in the ring buffer.
//!
//! \return Returns the number of contiguous bytes available in the ring
//! buffer.
//
//*****************************************************************************
uint32_t
USBRingBufContigFree(tUSBRingBufObject *psUSBRingBuf)
{
uint32_t ui32Write;
uint32_t ui32Read;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Copy the Read/Write indices for calculation.
//
ui32Write = psUSBRingBuf->ui32WriteIndex;
ui32Read = psUSBRingBuf->ui32ReadIndex;
//
// Return the number of contiguous bytes available.
//
if(ui32Read > ui32Write)
{
//
// The read pointer is above the write pointer so the amount of free
// space is the difference between the two indices minus 1 to account
// for the buffer full condition (write index one behind read index).
//
return((ui32Read - ui32Write) - 1);
}
else
{
//
// If the write pointer is above the read pointer, the amount of free
// space is the size of the buffer minus the write index. We need to
// add a special-case adjustment if the read index is 0 since we need
// to leave 1 byte empty to ensure we can tell the difference between
// the buffer being full and empty.
//
return(psUSBRingBuf->ui32Size - ui32Write - ((ui32Read == 0) ? 1 : 0));
}
}
//*****************************************************************************
//
//! Returns the size in bytes of a ring buffer.
//!
//! \param psUSBRingBuf is the ring buffer object to check.
//!
//! This function returns the size of the ring buffer.
//!
//! \return Returns the size in bytes of the ring buffer.
//
//*****************************************************************************
uint32_t
USBRingBufSize(tUSBRingBufObject *psUSBRingBuf)
{
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Return the number of bytes available in the ring buffer.
//
return(psUSBRingBuf->ui32Size);
}
//*****************************************************************************
//
//! Reads a single byte of data from a ring buffer.
//!
//! \param psUSBRingBuf points to the ring buffer to be written to.
//!
//! This function reads a single byte of data from a ring buffer.
//!
//! \return The byte read from the ring buffer.
//
//*****************************************************************************
uint8_t
USBRingBufReadOne(tUSBRingBufObject *psUSBRingBuf)
{
uint8_t ui8Temp;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Verify that space is available in the buffer.
//
ASSERT(USBRingBufUsed(psUSBRingBuf) != 0);
//
// Write the data byte.
//
ui8Temp = psUSBRingBuf->pui8Buf[psUSBRingBuf->ui32ReadIndex];
//
// Increment the read index.
//
UpdateIndexAtomic(&psUSBRingBuf->ui32ReadIndex, 1, psUSBRingBuf->ui32Size);
//
// Return the character read.
//
return(ui8Temp);
}
//*****************************************************************************
//
//! Reads data from a ring buffer.
//!
//! \param psUSBRingBuf points to the ring buffer to be read from.
//! \param pui8Data points to where the data should be stored.
//! \param ui32Length is the number of bytes to be read.
//!
//! This function reads a sequence of bytes from a ring buffer.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufRead(tUSBRingBufObject *psUSBRingBuf, uint8_t *pui8Data,
uint32_t ui32Length)
{
uint32_t ui32Temp;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
ASSERT(pui8Data != NULL);
ASSERT(ui32Length != 0);
//
// Verify that data is available in the buffer.
//
ASSERT(ui32Length <= USBRingBufUsed(psUSBRingBuf));
//
// Read the data from the ring buffer.
//
for(ui32Temp = 0; ui32Temp < ui32Length; ui32Temp++)
{
pui8Data[ui32Temp] = USBRingBufReadOne(psUSBRingBuf);
}
}
//*****************************************************************************
//
//! Removes bytes from the ring buffer by advancing the read index.
//!
//! \param psUSBRingBuf points to the ring buffer from which bytes are to be
//! removed.
//! \param ui32NumBytes is the number of bytes to be removed from the buffer.
//!
//! This function advances the ring buffer read index by a given number of
//! bytes, removing that number of bytes of data from the buffer. If
//! \e ui32NumBytes is larger than the number of bytes currently in the buffer,
//! the buffer is emptied.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufAdvanceRead(tUSBRingBufObject *psUSBRingBuf, uint32_t ui32NumBytes)
{
uint32_t ui32Count;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Make sure that we are not being asked to remove more data than is
// there to be removed.
//
ui32Count = USBRingBufUsed(psUSBRingBuf);
ui32Count = (ui32Count < ui32NumBytes) ? ui32Count : ui32NumBytes;
//
// Advance the buffer read index by the required number of bytes.
//
UpdateIndexAtomic(&psUSBRingBuf->ui32ReadIndex, ui32Count,
psUSBRingBuf->ui32Size);
}
//*****************************************************************************
//
//! Adds bytes to the ring buffer by advancing the write index.
//!
//! \param psUSBRingBuf points to the ring buffer to which bytes have been
//! added.
//! \param ui32NumBytes is the number of bytes added to the buffer.
//!
//! This function should be used by clients who wish to add data to the buffer
//! directly rather than via calls to USBRingBufWrite() or
//! USBRingBufWriteOne(). It advances the write index by a given number of
//! bytes.
//!
//! \note It is considered an error if the \e ui32NumBytes parameter is larger
//! than the amount of free space in the buffer and a debug build of this
//! function will fail (ASSERT) if this condition is detected. In a release
//! build, the buffer read pointer will be advanced if too much data is written
//! but this will, of course, result in some of the oldest data in the buffer
//! being discarded and also, depending upon how data is being read from
//! the buffer, may result in a race condition which could corrupt the read
//! pointer.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufAdvanceWrite(tUSBRingBufObject *psUSBRingBuf, uint32_t ui32NumBytes)
{
uint32_t ui32Count;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Make sure we were not asked to add a silly number of bytes.
//
ASSERT(ui32NumBytes <= psUSBRingBuf->ui32Size);
//
// Determine how much free space we currently think the buffer has.
//
ui32Count = USBRingBufFree(psUSBRingBuf);
//
// Check that the client has not added more data to the buffer than there
// is space for. In this case, corruption may have occurred since the
// buffer may have been read under interrupt context while the writer was
// busy trashing the area around the read pointer.
//
ASSERT(ui32Count >= ui32NumBytes);
//
// Update the write pointer.
//
psUSBRingBuf->ui32WriteIndex += ui32NumBytes;
//
// Check and correct for wrap.
//
if(psUSBRingBuf->ui32WriteIndex >= psUSBRingBuf->ui32Size)
{
psUSBRingBuf->ui32WriteIndex -= psUSBRingBuf->ui32Size;
}
//
// Did the client add more bytes than the buffer had free space for? This
// should be considered a bug since, unless this function is called in
// the same context as the code which is reading from the buffer, writing
// over the earliest data can cause corrupted data to be read. The
// ASSERT above catches this in debug builds but, in release builds, we
// go ahead and try to fix up the read pointer appropriately.
//
if(ui32Count < ui32NumBytes)
{
//
// Yes - we need to advance the read pointer to ahead of the write
// pointer to discard some of the oldest data.
//
psUSBRingBuf->ui32ReadIndex = psUSBRingBuf->ui32WriteIndex + 1;
//
// Correct for buffer wrap if necessary.
//
if(psUSBRingBuf->ui32ReadIndex >= psUSBRingBuf->ui32Size)
{
psUSBRingBuf->ui32ReadIndex -= psUSBRingBuf->ui32Size;
}
}
}
//*****************************************************************************
//
//! Writes a single byte of data to a ring buffer.
//!
//! \param psUSBRingBuf points to the ring buffer to be written to.
//! \param ui8Data is the byte to be written.
//!
//! This function writes a single byte of data into a ring buffer.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufWriteOne(tUSBRingBufObject *psUSBRingBuf, uint8_t ui8Data)
{
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
//
// Verify that space is available in the buffer.
//
ASSERT(USBRingBufFree(psUSBRingBuf) != 0);
//
// Write the data byte.
//
psUSBRingBuf->pui8Buf[psUSBRingBuf->ui32WriteIndex] = ui8Data;
//
// Increment the write index.
//
UpdateIndexAtomic(&psUSBRingBuf->ui32WriteIndex, 1,
psUSBRingBuf->ui32Size);
}
//*****************************************************************************
//
//! Writes data to a ring buffer.
//!
//! \param psUSBRingBuf points to the ring buffer to be written to.
//! \param pui8Data points to the data to be written.
//! \param ui32Length is the number of bytes to be written.
//!
//! This function write a sequence of bytes into a ring buffer.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufWrite(tUSBRingBufObject *psUSBRingBuf, const uint8_t *pui8Data,
uint32_t ui32Length)
{
uint32_t ui32Temp;
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
ASSERT(pui8Data != NULL);
ASSERT(ui32Length != 0);
//
// Verify that space is available in the buffer.
//
ASSERT(ui32Length <= USBRingBufFree(psUSBRingBuf));
//
// Write the data into the ring buffer.
//
for(ui32Temp = 0; ui32Temp < ui32Length; ui32Temp++)
{
USBRingBufWriteOne(psUSBRingBuf, pui8Data[ui32Temp]);
}
}
//*****************************************************************************
//
//! Initializes a ring buffer object.
//!
//! \param psUSBRingBuf points to the ring buffer to be initialized.
//! \param pui8Buf points to the data buffer to be used for the ring buffer.
//! \param ui32Size is the size of the buffer in bytes.
//!
//! This function initializes a ring buffer object, preparing it to store data.
//!
//! \return None.
//
//*****************************************************************************
void
USBRingBufInit(tUSBRingBufObject *psUSBRingBuf, uint8_t *pui8Buf,
uint32_t ui32Size)
{
//
// Check the arguments.
//
ASSERT(psUSBRingBuf != NULL);
ASSERT(pui8Buf != NULL);
ASSERT(ui32Size != 0);
//
// Initialize the ring buffer object.
//
psUSBRingBuf->ui32Size = ui32Size;
psUSBRingBuf->pui8Buf = pui8Buf;
psUSBRingBuf->ui32WriteIndex = psUSBRingBuf->ui32ReadIndex = 0;
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

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//*****************************************************************************
//
// usbtick.c - Functions related to USB stack tick timer handling.
//
// Copyright (c) 2008-2013 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 1.1 of the Tiva USB Library.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "usblib/usblib.h"
#include "usblib/usblibpriv.h"
//*****************************************************************************
//
//! \addtogroup general_usblib_api
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// These are the internal timer tick handlers used by the USB stack. Handlers
// in g_pfnTickHandlers are called in the context of the USB SOF interrupt
// every USB_SOF_TICK_DIVIDE milliseconds.
//
//*****************************************************************************
tUSBTickHandler g_pfnTickHandlers[MAX_USB_TICK_HANDLERS];
void *g_pvTickInstance[MAX_USB_TICK_HANDLERS];
//*****************************************************************************
//
// Flag to indicate whether or not we have been initialized.
//
//*****************************************************************************
bool g_bUSBTimerInitialized = false;
//*****************************************************************************
//
// This is the current tick value in ms for the system. This is used for all
// instances of USB controllers and for all timer tick handlers.
//
//*****************************************************************************
uint32_t g_ui32CurrentUSBTick = 0;
//*****************************************************************************
//
// This is the total number of SOF interrupts received since the system
// booted. The value is incremented by the low level device- or host-interrupt
// handler functions.
//
//*****************************************************************************
uint32_t g_ui32USBSOFCount = 0;
//*****************************************************************************
//
// This internal function initializes the variables used in processing timer
// ticks.
//
// This function should only be called from within the USB library. It is set
// up to ensure that it can be called multiple times if necessary without
// the previous configuration being erased (to cater for OTG mode switching).
//
// \return None.
//
//*****************************************************************************
void
InternalUSBTickInit(void)
{
uint32_t ui32Loop;
if(!g_bUSBTimerInitialized)
{
for(ui32Loop = 0; ui32Loop < MAX_USB_TICK_HANDLERS; ui32Loop++)
{
g_pfnTickHandlers[ui32Loop] = (tUSBTickHandler)0;
g_pvTickInstance[ui32Loop] = 0;
}
g_bUSBTimerInitialized = true;
}
}
//*****************************************************************************
//
// This internal function resets the USB tick handler.
//
// This function should only be called from within the USB library. It will
// clear out the tick handler state and should be called to allow the tick
// handlers to be initialized once USBDCDInit() function is called.
//
// \return None.
//
//*****************************************************************************
void
InternalUSBTickReset(void)
{
//
// Reset the initialized flag so that the next time InternalUSBTickInit()
// is called.
//
g_bUSBTimerInitialized = 0;
}
//*****************************************************************************
//
// This internal function handles registering OTG, Host, or Device SOF timer
// handler functions.
//
// \param pfHandler specifies the handler to call for the given type of
// handler.
// \param pvInstance is the instance pointer that will be returned to the
// function provided in the \e pfHandler function.
//
// This function should only be called inside the USB library and only as a
// result to a call to reinitialize the stack in a new mode. Currently the
// following 3 types of timer tick handlers can be registered:
// TICK_HANDLER_OTG, TICK_HANDLER_HOST, or TICK_HANDLER_DEVICE. Handlers
// registered via this function are called in the context of the SOF interrupt.
//
// \return A value of zero means that the tick handler was registered and any
// other value indicates an error.
//
//*****************************************************************************
int32_t
InternalUSBRegisterTickHandler(tUSBTickHandler pfHandler, void *pvInstance)
{
int32_t i32Idx;
for(i32Idx = 0; i32Idx < MAX_USB_TICK_HANDLERS; i32Idx++)
{
if(g_pfnTickHandlers[i32Idx] == 0)
{
//
// Save the handler.
//
g_pfnTickHandlers[i32Idx] = pfHandler;
//
// Save the instance data.
//
g_pvTickInstance[i32Idx] = pvInstance;
}
}
if(i32Idx == MAX_USB_TICK_HANDLERS)
{
return(-1);
}
return(0);
}
//*****************************************************************************
//
//! \internal
//!
//! Calls internal handlers in response to a tick based on the start of frame
//! interrupt.
//!
//! \param ui32TicksmS specifies how many milliseconds have passed since the
//! last call to this function.
//!
//! This function is called every 5mS in the context of the Start of Frame
//! (SOF) interrupt. It is used to call any registered internal tick
//! functions.
//!
//! This function should only be called from within the USB library.
//!
//! \return None.
//
//*****************************************************************************
void
InternalUSBStartOfFrameTick(uint32_t ui32TicksmS)
{
int32_t i32Idx;
//
// Advance time.
//
g_ui32CurrentUSBTick += ui32TicksmS;
//
// Call any registered SOF tick handlers.
//
for(i32Idx = 0; i32Idx < MAX_USB_TICK_HANDLERS; i32Idx++)
{
if(g_pfnTickHandlers[i32Idx])
{
g_pfnTickHandlers[i32Idx](g_pvTickInstance[i32Idx], ui32TicksmS);
}
}
}
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************

12
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Boot/main.c
View File

@ -103,6 +103,18 @@ static void Init(void)
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE));
#endif
#if (BOOT_COM_USB_ENABLE > 0)
/* enable the GPIO peripheral used for USB, and configure the USB pins */
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL);
GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7);
#endif
/* enable the GPIO port to which the SELECT button is connected */
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOM);
/* configure the SELECT button pin as an input with pull-up */
GPIODirModeSet(GPIO_PORTM_BASE, GPIO_PIN_4, GPIO_DIR_MODE_IN);
GPIOPadConfigSet(GPIO_PORTM_BASE, GPIO_PIN_4, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
} /*** end of Init ***/

BIN
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/bin/demoprog_dk_tm4c123g.out
View File

Binary file not shown.

614
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/bin/demoprog_dk_tm4c123g.srec
View File

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2
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/boot.c
View File

@ -49,7 +49,6 @@ static void BootActivate(void)
} /*** end of BootActivate ***/
#if (BOOT_COM_UART_ENABLE > 0)
/****************************************************************************************
* U N I V E R S A L A S Y N C H R O N O U S R X T X I N T E R F A C E
****************************************************************************************/
@ -153,7 +152,6 @@ static unsigned char UartReceiveByte(unsigned char *data)
/* inform caller that no new data was received */
return 0;
} /*** end of UartReceiveByte ***/
#endif /* BOOT_COM_UART_ENABLE > 0 */
/*********************************** end of boot.c *************************************/

8
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/ide/settings/tm4c123g.wsdt
View File

@ -17,7 +17,7 @@
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@ -29,20 +29,20 @@
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1456
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/ide/tm4c123g.dep
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File diff suppressed because it is too large Load Diff

4
Target/Demo/ARMCM4_TM4C_DK_TM4C123G_IAR/Prog/memory.x
View File

@ -1,7 +1,7 @@
/*-Specials-*/
define symbol __ICFEDIT_intvec_start__ = 0x00006000;
define symbol __ICFEDIT_intvec_start__ = 0x00008000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x00006000;
define symbol __ICFEDIT_region_ROM_start__ = 0x00008000;
define symbol __ICFEDIT_region_ROM_end__ = 0x0003FFFF;
define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
define symbol __ICFEDIT_region_RAM_end__ = 0x20007FFF;

2
Target/Source/ARMCM4_TM4C/IAR/memory.x
View File

@ -2,7 +2,7 @@
define symbol __ICFEDIT_intvec_start__ = 0x00000000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x00000000;
define symbol __ICFEDIT_region_ROM_end__ = 0x00005FFF;
define symbol __ICFEDIT_region_ROM_end__ = 0x00007FFF;
define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
define symbol __ICFEDIT_region_RAM_end__ = 0x20001FFF;
/*-Sizes-*/

190
Target/Source/ARMCM4_TM4C/IAR/vectors.c
View File

@ -135,101 +135,101 @@ __root const tIsrFunc __vector_table[] @ ".intvec" =
{ UnusedISR }, /* CAN2 */
{ UnusedISR }, /* Ethernet */
{ UnusedISR }, /* Hibernate */
{ UnusedISR }, /* USB0 */
{ UnusedISR }, /* PWM Generator 3 */
{ UnusedISR }, /* uDMA Software Transfer */
{ UnusedISR }, /* uDMA Error */
{ UnusedISR }, /* ADC1 Sequence 0 */
{ UnusedISR }, /* ADC1 Sequence 1 */
{ UnusedISR }, /* ADC1 Sequence 2 */
{ UnusedISR }, /* ADC1 Sequence 3 */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* GPIO Port J */
{ UnusedISR }, /* GPIO Port K */
{ UnusedISR }, /* GPIO Port L */
{ UnusedISR }, /* SSI2 Rx and Tx */
{ UnusedISR }, /* SSI3 Rx and Tx */
{ UnusedISR }, /* UART3 Rx and Tx */
{ UnusedISR }, /* UART4 Rx and Tx */
{ UnusedISR }, /* UART5 Rx and Tx */
{ UnusedISR }, /* UART6 Rx and Tx */
{ UnusedISR }, /* UART7 Rx and Tx */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* I2C2 Master and Slave */
{ UnusedISR }, /* I2C3 Master and Slave */
{ UnusedISR }, /* Timer 4 subtimer A */
{ UnusedISR }, /* Timer 4 subtimer B */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Timer 5 subtimer A */
{ UnusedISR }, /* Timer 5 subtimer B */
{ UnusedISR }, /* Wide Timer 0 subtimer A */
{ UnusedISR }, /* Wide Timer 0 subtimer B */
{ UnusedISR }, /* Wide Timer 1 subtimer A */
{ UnusedISR }, /* Wide Timer 1 subtimer B */
{ UnusedISR }, /* Wide Timer 2 subtimer A */
{ UnusedISR }, /* Wide Timer 2 subtimer B */
{ UnusedISR }, /* Wide Timer 3 subtimer A */
{ UnusedISR }, /* Wide Timer 3 subtimer B */
{ UnusedISR }, /* Wide Timer 4 subtimer A */
{ UnusedISR }, /* Wide Timer 4 subtimer B */
{ UnusedISR }, /* Wide Timer 5 subtimer A */
{ UnusedISR }, /* Wide Timer 5 subtimer B */
{ UnusedISR }, /* FPU */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* I2C4 Master and Slave */
{ UnusedISR }, /* I2C5 Master and Slave */
{ UnusedISR }, /* GPIO Port M */
{ UnusedISR }, /* GPIO Port N */
{ UnusedISR }, /* Quadrature Encoder 2 */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* GPIO Port P (Summary or P0) */
{ UnusedISR }, /* GPIO Port P1 */
{ UnusedISR }, /* GPIO Port P2 */
{ UnusedISR }, /* GPIO Port P3 */
{ UnusedISR }, /* GPIO Port P4 */
{ UnusedISR }, /* GPIO Port P5 */
{ UnusedISR }, /* GPIO Port P6 */
{ UnusedISR }, /* GPIO Port P7 */
{ UnusedISR }, /* GPIO Port Q (Summary or Q0) */
{ UnusedISR }, /* GPIO Port Q1 */
{ UnusedISR }, /* GPIO Port Q2 */
{ UnusedISR }, /* GPIO Port Q3 */
{ UnusedISR }, /* GPIO Port Q4 */
{ UnusedISR }, /* GPIO Port Q5 */
{ UnusedISR }, /* GPIO Port Q6 */
{ UnusedISR }, /* GPIO Port Q7 */
{ UnusedISR }, /* GPIO Port R */
{ UnusedISR }, /* GPIO Port S */
{ UnusedISR }, /* PWM 1 Generator 0 */
{ UnusedISR }, /* PWM 1 Generator 1 */
{ UnusedISR }, /* PWM 1 Generator 2 */
{ UnusedISR }, /* PWM 1 Generator 3 */
{ UnusedISR } /* PWM 1 Fault */
{ UnusedISR }, /* USB0 */
{ UnusedISR }, /* PWM Generator 3 */
{ UnusedISR }, /* uDMA Software Transfer */
{ UnusedISR }, /* uDMA Error */
{ UnusedISR }, /* ADC1 Sequence 0 */
{ UnusedISR }, /* ADC1 Sequence 1 */
{ UnusedISR }, /* ADC1 Sequence 2 */
{ UnusedISR }, /* ADC1 Sequence 3 */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* GPIO Port J */
{ UnusedISR }, /* GPIO Port K */
{ UnusedISR }, /* GPIO Port L */
{ UnusedISR }, /* SSI2 Rx and Tx */
{ UnusedISR }, /* SSI3 Rx and Tx */
{ UnusedISR }, /* UART3 Rx and Tx */
{ UnusedISR }, /* UART4 Rx and Tx */
{ UnusedISR }, /* UART5 Rx and Tx */
{ UnusedISR }, /* UART6 Rx and Tx */
{ UnusedISR }, /* UART7 Rx and Tx */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* I2C2 Master and Slave */
{ UnusedISR }, /* I2C3 Master and Slave */
{ UnusedISR }, /* Timer 4 subtimer A */
{ UnusedISR }, /* Timer 4 subtimer B */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Timer 5 subtimer A */
{ UnusedISR }, /* Timer 5 subtimer B */
{ UnusedISR }, /* Wide Timer 0 subtimer A */
{ UnusedISR }, /* Wide Timer 0 subtimer B */
{ UnusedISR }, /* Wide Timer 1 subtimer A */
{ UnusedISR }, /* Wide Timer 1 subtimer B */
{ UnusedISR }, /* Wide Timer 2 subtimer A */
{ UnusedISR }, /* Wide Timer 2 subtimer B */
{ UnusedISR }, /* Wide Timer 3 subtimer A */
{ UnusedISR }, /* Wide Timer 3 subtimer B */
{ UnusedISR }, /* Wide Timer 4 subtimer A */
{ UnusedISR }, /* Wide Timer 4 subtimer B */
{ UnusedISR }, /* Wide Timer 5 subtimer A */
{ UnusedISR }, /* Wide Timer 5 subtimer B */
{ UnusedISR }, /* FPU */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* I2C4 Master and Slave */
{ UnusedISR }, /* I2C5 Master and Slave */
{ UnusedISR }, /* GPIO Port M */
{ UnusedISR }, /* GPIO Port N */
{ UnusedISR }, /* Quadrature Encoder 2 */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* Reserved */
{ UnusedISR }, /* GPIO Port P (Summary or P0) */
{ UnusedISR }, /* GPIO Port P1 */
{ UnusedISR }, /* GPIO Port P2 */
{ UnusedISR }, /* GPIO Port P3 */
{ UnusedISR }, /* GPIO Port P4 */
{ UnusedISR }, /* GPIO Port P5 */
{ UnusedISR }, /* GPIO Port P6 */
{ UnusedISR }, /* GPIO Port P7 */
{ UnusedISR }, /* GPIO Port Q (Summary or Q0) */
{ UnusedISR }, /* GPIO Port Q1 */
{ UnusedISR }, /* GPIO Port Q2 */
{ UnusedISR }, /* GPIO Port Q3 */
{ UnusedISR }, /* GPIO Port Q4 */
{ UnusedISR }, /* GPIO Port Q5 */
{ UnusedISR }, /* GPIO Port Q6 */
{ UnusedISR }, /* GPIO Port Q7 */
{ UnusedISR }, /* GPIO Port R */
{ UnusedISR }, /* GPIO Port S */
{ UnusedISR }, /* PWM 1 Generator 0 */
{ UnusedISR }, /* PWM 1 Generator 1 */
{ UnusedISR }, /* PWM 1 Generator 2 */
{ UnusedISR }, /* PWM 1 Generator 3 */
{ UnusedISR } /* PWM 1 Fault */
};

27
Target/Source/ARMCM4_TM4C/cpu.c
View File

@ -40,25 +40,14 @@
/****************************************************************************************
* Macro definitions
****************************************************************************************/
#if (BOOT_FILE_SYS_ENABLE > 0)
/** \brief Pointer to the user program's reset vector. Note that this needs to be
* changed in case the reserved memory for the bootloader is more than 0x6000.
*/
#define CPU_USER_PROGRAM_STARTADDR_PTR ((blt_addr) 0x00006004)
/** \brief Pointer to the user program's vector table. Note that this needs to be
* changed in case the reserved memory for the bootloader is more than 0x6000.
*/
#define CPU_USER_PROGRAM_VECTABLE_OFFSET ((blt_int32u)0x00006000)
#else
/** \brief Pointer to the user program's reset vector. Note that this needs to be
* changed in case the reserved memory for the bootloader is more than 0x2000.
*/
#define CPU_USER_PROGRAM_STARTADDR_PTR ((blt_addr) 0x00002004)
/** \brief Pointer to the user program's vector table. Note that this needs to be
* changed in case the reserved memory for the bootloader is more than 0x2000.
*/
#define CPU_USER_PROGRAM_VECTABLE_OFFSET ((blt_int32u)0x00002000)
#endif
/** \brief Pointer to the user program's reset vector. Note that this needs to be
* changed in case the reserved memory for the bootloader is other than 0x8000.
*/
#define CPU_USER_PROGRAM_STARTADDR_PTR ((blt_addr) 0x00008004)
/** \brief Pointer to the user program's vector table. Note that this needs to be
* changed in case the reserved memory for the bootloader is other than 0x8000.
*/
#define CPU_USER_PROGRAM_VECTABLE_OFFSET ((blt_int32u)0x00008000)
/****************************************************************************************

18
Target/Source/ARMCM4_TM4C/flash.c
View File

@ -113,20 +113,18 @@ static blt_addr FlashGetSectorSize(blt_int8u sector);
*/
static const tFlashSector flashLayout[] =
{
#if (BOOT_FILE_SYS_ENABLE > 0)
/* the size of the bootloader with support for firmware update from a locally attached
* storage disk is larger so the start address of the user program is at a different
* location.
/* with just UART supported, the bootloader needs 0x2000 in size. enabling support for
* for firmware update from a locally attached storage disk and USB instead of UART,
* the required size can be close to 0x8000 (32kb). this is the default configuration,
* but can be changed by the user if less space is required. If changed, then also
* change the start address of the user program in its linker script file.
* additionally, the macros CPU_USER_PROGRAM_STARTADDR_PTR and
* CPU_USER_PROGRAM_VECTABLE_OFFSET should be updated in file cpu.c.
*/
/* { 0x00000000, 0x02000, 0}, flash sector 0 - reserved for bootloader */
/* { 0x00002000, 0x02000, 1}, flash sector 1 - reserved for bootloader */
/* { 0x00004000, 0x02000, 2}, flash sector 2 - reserved for bootloader */
#else
/* { 0x00000000, 0x02000, 0}, flash sector 0 - 8kb */
{ 0x00002000, 0x02000, 1}, /* flash sector 1 - 8kb */
{ 0x00004000, 0x02000, 2}, /* flash sector 2 - 8kb */
#endif
{ 0x00006000, 0x02000, 3}, /* flash sector 3 - 8kb */
/* { 0x00006000, 0x02000, 3}, flash sector 3 - reserved for bootloader */
#if (BOOT_NVM_SIZE_KB > 32)
{ 0x00008000, 0x02000, 4}, /* flash sector 4 - 8kb */
{ 0x0000A000, 0x02000, 5}, /* flash sector 5 - 8kb */

593
Target/Source/ARMCM4_TM4C/usb.c Normal file
View File

@ -0,0 +1,593 @@
/************************************************************************************//**
* \file Source\ARMCM4_TM4C\usb.c
* \brief Bootloader USB communication interface source file.
* \ingroup Target_ARMCM4_TM4C
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2014 by Feaser http://www.feaser.com All rights reserved
*
*----------------------------------------------------------------------------------------
* L I C E N S E
*----------------------------------------------------------------------------------------
* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with OpenBLT.
* If not, see <http://www.gnu.org/licenses/>.
*
* A special exception to the GPL is included to allow you to distribute a combined work
* that includes OpenBLT without being obliged to provide the source code for any
* proprietary components. The exception text is included at the bottom of the license
* file <license.html>.
*
* \endinternal
****************************************************************************************/
/****************************************************************************************
* Include files
****************************************************************************************/
#include "boot.h" /* bootloader generic header */
#if (BOOT_COM_USB_ENABLE > 0)
#include <stdbool.h>
#include <stdint.h>
#include "usblib.h"
#include "usbdevice.h"
#include "usbdbulk.h"
#include "usb_bulk_structs.h"
/****************************************************************************************
* Macro definitions
****************************************************************************************/
/** \brief Total number of fifo buffers. */
#define FIFO_MAX_BUFFERS (2)
/** \brief Invalid value for a fifo buffer handle. */
#define FIFO_ERR_INVALID_HANDLE (255)
/** \brief Number of bytes that fit in the fifo pipe. */
#define FIFO_PIPE_SIZE (64)
/****************************************************************************************
* Type definitions
****************************************************************************************/
/** \brief Structure type for fifo control. */
typedef struct t_fifo_ctrl
{
blt_int8u *startptr; /**< pointer to start of buffer */
blt_int8u *endptr; /**< pointer to end of buffer */
blt_int8u *readptr; /**< pointer to next read location */
blt_int8u *writeptr; /**< pointer to next free location */
blt_int8u length; /**< number of buffer elements */
blt_int8u entries; /**< # of full buffer elements */
blt_int8u handle; /**< handle of the buffer */
struct t_fifo_ctrl *fifoctrlptr; /**< pointer to free buffer control */
} tFifoCtrl;
/** \brief Structure type for a fifo pipe. */
typedef struct
{
blt_int8u handle; /**< fifo handle */
blt_int8u data[FIFO_PIPE_SIZE]; /**< fifo data buffer */
} tFifoPipe; /**< USB pipe fifo type */
/****************************************************************************************
* Hook functions
****************************************************************************************/
extern void UsbEnterLowPowerModeHook(void);
extern void UsbLeaveLowPowerModeHook(void);
extern void UsbConnectHook(blt_bool connect);
/****************************************************************************************
* Function prototypes
****************************************************************************************/
static blt_bool UsbReceiveByte(blt_int8u *data);
static blt_bool UsbTransmitByte(blt_int8u data);
static void UsbTransmitPipeBulkIN(void);
static void UsbReceivePipeBulkOUT(blt_int8u *data, blt_int32u len);
static void UsbFifoMgrInit(void);
static blt_int8u UsbFifoMgrCreate(blt_int8u *buffer, blt_int8u length);
static blt_bool UsbFifoMgrWrite(blt_int8u handle, blt_int8u data);
static blt_bool UsbFifoMgrRead(blt_int8u handle, blt_int8u *data);
static blt_int8u UsbFifoMgrScan(blt_int8u handle);
/****************************************************************************************
* Local data declarations
****************************************************************************************/
/** \brief Local variable that holds the fifo control structures. */
static tFifoCtrl fifoCtrl[FIFO_MAX_BUFFERS];
/** \brief Local pointer that points to the next free fifo control structure. */
static tFifoCtrl *fifoCtrlFree;
/** \brief Fifo pipe used for the bulk in endpoint. */
static tFifoPipe fifoPipeBulkIN;
/** \brief Fifo pipe used for the bulk out endpoint. */
static tFifoPipe fifoPipeBulkOUT;
/** \brief Holds a handle to the bulk device instance. */
static tBulkInstance *instanceHandle;
/************************************************************************************//**
** \brief Initializes the USB communication interface.
** \return none.
**
****************************************************************************************/
void UsbInit(void)
{
/* initialize the FIFO manager */
UsbFifoMgrInit();
/* place 2 buffers under FIFO management */
fifoPipeBulkIN.handle = UsbFifoMgrCreate(fifoPipeBulkIN.data, FIFO_PIPE_SIZE);
fifoPipeBulkOUT.handle = UsbFifoMgrCreate(fifoPipeBulkOUT.data, FIFO_PIPE_SIZE);
/* validate fifo handles */
ASSERT_RT( (fifoPipeBulkIN.handle != FIFO_ERR_INVALID_HANDLE) && \
(fifoPipeBulkOUT.handle != FIFO_ERR_INVALID_HANDLE) );
/* initialize the transmit and receive buffers */
USBBufferInit(&g_sTxBuffer);
USBBufferInit(&g_sRxBuffer);
/* pass our device information to the USB library and place the device on the bus */
instanceHandle = USBDBulkInit(0, &g_sBulkDevice);
ASSERT_RT(instanceHandle != BLT_NULL);
} /*** end of UsbInit ***/
/************************************************************************************//**
** \brief Releases the USB communication interface.
** \return none.
**
****************************************************************************************/
void UsbFree(void)
{
/* shut down the bulk device */
USBDBulkTerm(instanceHandle);
/* disconnect the USB device from the USB host */
UsbConnectHook(BLT_FALSE);
} /*** end of UsbFree ***/
/************************************************************************************//**
** \brief Transmits a packet formatted for the communication interface.
** \param data Pointer to byte array with data that it to be transmitted.
** \param len Number of bytes that are to be transmitted.
** \return none.
**
****************************************************************************************/
void UsbTransmitPacket(blt_int8u *data, blt_int8u len)
{
blt_int16u data_index;
/* verify validity of the len-parameter */
ASSERT_RT(len <= BOOT_COM_TX_MAX_DATA);
/* first transmit the length of the packet */
ASSERT_RT(UsbTransmitByte(len) == BLT_TRUE);
/* transmit all the packet bytes one-by-one */
for (data_index = 0; data_index < len; data_index++)
{
/* keep the watchdog happy */
CopService();
/* write byte */
ASSERT_RT(UsbTransmitByte(data[data_index]) == BLT_TRUE);
}
/* start the transmission */
UsbTransmitPipeBulkIN();
} /*** end of UsbTransmitPacket ***/
/************************************************************************************//**
** \brief Receives a communication interface packet if one is present.
** \param data Pointer to byte array where the data is to be stored.
** \return BLT_TRUE if a packet was received, BLT_FALSE otherwise.
**
****************************************************************************************/
blt_bool UsbReceivePacket(blt_int8u *data)
{
static blt_int8u xcpCtoReqPacket[XCP_CTO_PACKET_LEN+1]; /* one extra for length */
static blt_int8u xcpCtoRxLength;
static blt_bool xcpCtoRxInProgress = BLT_FALSE;
/* poll for USB events */
USB0DeviceIntHandler();
/* start of cto packet received? */
if (xcpCtoRxInProgress == BLT_FALSE)
{
/* store the message length when received */
if (UsbReceiveByte(&xcpCtoReqPacket[0]) == BLT_TRUE)
{
/* indicate that a cto packet is being received */
xcpCtoRxInProgress = BLT_TRUE;
/* reset packet data count */
xcpCtoRxLength = 0;
}
}
else
{
/* store the next packet byte */
if (UsbReceiveByte(&xcpCtoReqPacket[xcpCtoRxLength+1]) == BLT_TRUE)
{
/* increment the packet data count */
xcpCtoRxLength++;
/* check to see if the entire packet was received */
if (xcpCtoRxLength == xcpCtoReqPacket[0])
{
/* copy the packet data */
CpuMemCopy((blt_int32u)data, (blt_int32u)&xcpCtoReqPacket[1], xcpCtoRxLength);
/* done with cto packet reception */
xcpCtoRxInProgress = BLT_FALSE;
/* packet reception complete */
return BLT_TRUE;
}
}
}
/* packet reception not yet complete */
return BLT_FALSE;
} /*** end of UsbReceivePacket ***/
/************************************************************************************//**
** \brief Receives a communication interface byte if one is present.
** \param data Pointer to byte where the data is to be stored.
** \return BLT_TRUE if a byte was received, BLT_FALSE otherwise.
**
****************************************************************************************/
static blt_bool UsbReceiveByte(blt_int8u *data)
{
blt_bool result;
/* obtain data from the fifo */
result = UsbFifoMgrRead(fifoPipeBulkOUT.handle, data);
return result;
} /*** end of UsbReceiveByte ***/
/************************************************************************************//**
** \brief Transmits a communication interface byte.
** \param data Value of byte that is to be transmitted.
** \return BLT_TRUE if the byte was transmitted, BLT_FALSE otherwise.
**
****************************************************************************************/
static blt_bool UsbTransmitByte(blt_int8u data)
{
blt_bool result;
/* write data from to fifo */
result = UsbFifoMgrWrite(fifoPipeBulkIN.handle, data);
return result;
} /*** end of UsbTransmitByte ***/
/************************************************************************************//**
** \brief Checks if there is still data left to transmit and if so submits it
** for transmission with the USB endpoint.
** \return none.
**
****************************************************************************************/
static void UsbTransmitPipeBulkIN(void)
{
tUSBRingBufObject txRing;
blt_int32u txSpace;
blt_int32u txWriteIdx;
blt_int8u nr_of_bytes_for_tx_endpoint;
blt_int8u byte_counter;
blt_int8u byte_value;
blt_bool result;
/* read how many bytes should be transmitted */
nr_of_bytes_for_tx_endpoint = UsbFifoMgrScan(fifoPipeBulkIN.handle);
/* only continue if there is actually data left to transmit */
if (nr_of_bytes_for_tx_endpoint == 0)
{
return;
}
/* get information about the USB transmit buffer */
USBBufferInfoGet(&g_sTxBuffer, &txRing);
/* determine how many bytes will still fit in the tx buffer */
txSpace = USBBufferSpaceAvailable(&g_sTxBuffer);
/* only transmit the amount of bytes that will fit in the tx buffer */
if (nr_of_bytes_for_tx_endpoint > txSpace)
{
nr_of_bytes_for_tx_endpoint = txSpace;
}
/* determine write index for the tx buffer */
txWriteIdx = txRing.ui32WriteIndex;
/* copy the transmit data to the transmit buffer */
for (byte_counter=0; byte_counter < nr_of_bytes_for_tx_endpoint; byte_counter++)
{
/* obtain data from the fifo */
result = UsbFifoMgrRead(fifoPipeBulkIN.handle, &byte_value);
ASSERT_RT(result == BLT_TRUE);
/* store it in the transmit buffer */
g_pui8USBTxBuffer[txWriteIdx] = byte_value;
/* increment index with wrapping */
txWriteIdx++;
if (txWriteIdx >= BULK_BUFFER_SIZE)
{
txWriteIdx = 0;
}
}
/* inform the usb library that new data are ready for transmission */
USBBufferDataWritten(&g_sTxBuffer, nr_of_bytes_for_tx_endpoint);
} /*** end of UsbTransmitPipeBulkIN ***/
/************************************************************************************//**
** \brief Stores data that was received on the Bulk OUT pipe in the fifo.
** \param data Pointer to buffer with the newly received data
** \param len Number of received data bytes.
** \return none.
**
****************************************************************************************/
static void UsbReceivePipeBulkOUT(blt_int8u *data, blt_int32u len)
{
blt_int32u byte_counter;
blt_bool result;
blt_int32u rxReadIdx;
/* determine read index for the rx buffer */
rxReadIdx = (uint32_t)(data - g_pui8USBRxBuffer);
/* store the received data in the reception fifo */
for (byte_counter=0; byte_counter<len; byte_counter++)
{
/* add the data to the fifo */
result = UsbFifoMgrWrite(fifoPipeBulkOUT.handle, g_pui8USBRxBuffer[rxReadIdx]);
/* verify that the fifo wasn't full */
ASSERT_RT(result == BLT_TRUE);
/* increment index with wrapping */
rxReadIdx++;
if (rxReadIdx >= BULK_BUFFER_SIZE)
{
rxReadIdx = 0;
}
}
} /*** end of UsbReceivePipeBulkOUT ***/
/************************************************************************************//**
** \brief Handles bulk driver notifications related to the transmit channel (data to
** the USB host).
** \param pvCBData is the client-supplied callback pointer for this channel.
** \param ui32Event identifies the event we are being notified about.
** \param ui32MsgValue is an event-specific value.
** \param pvMsgData is an event-specific pointer.
** \return The return value is event-specific.
**
****************************************************************************************/
uint32_t UsbBulkTxHandler(void *pvCBData, uint32_t ui32Event, uint32_t ui32MsgValue, void *pvMsgData)
{
if(ui32Event == USB_EVENT_TX_COMPLETE)
{
/* check if more data is waiting to be transmitted */
UsbTransmitPipeBulkIN();
}
return 0;
} /*** end of UsbBulkTxHandler ***/
/************************************************************************************//**
** \brief Handles bulk driver notifications related to the receive channel (data from
** the USB host).
** \param pvCBData is the client-supplied callback pointer for this channel.
** \param ui32Event identifies the event we are being notified about.
** \param ui32MsgValue is an event-specific value.
** \param pvMsgData is an event-specific pointer.
** \return The return value is event-specific.
**
****************************************************************************************/
uint32_t UsbBulkRxHandler(void *pvCBData, uint32_t ui32Event, uint32_t ui32MsgValue, void *pvMsgData)
{
/* which event are we being sent? */
switch(ui32Event)
{
/* we are connected to a host and communication is now possible */
case USB_EVENT_CONNECTED:
{
/* flush our buffers */
USBBufferFlush(&g_sTxBuffer);
USBBufferFlush(&g_sRxBuffer);
break;
}
/* the host has disconnected */
case USB_EVENT_DISCONNECTED:
{
break;
}
/* a new packet has been received */
case USB_EVENT_RX_AVAILABLE:
{
/* handle all newly received bytes */
UsbReceivePipeBulkOUT(pvMsgData, ui32MsgValue);
return ui32MsgValue;
}
/* ignore SUSPEND and RESUME for now */
case USB_EVENT_SUSPEND:
/* power-off system clocks and power */
UsbEnterLowPowerModeHook();
break;
case USB_EVENT_RESUME:
/* restore power and system clocks */
UsbLeaveLowPowerModeHook();
break;
/* ignore all other events and return 0 */
default:
break;
}
return 0;
} /*** end of UsbBulkRxHandler ***/
/************************************************************************************//**
** \brief Initializes the fifo manager. Each controlled fifo is assigned a
** unique handle, which is the same as its index into fifoCtrl[]. Each
** controlled fifo holds a pointer to the next free fifo control.
** For the last fifo in fifoCtrl[] this one is set to a null-pointer as
** an out of fifo control indicator. Function should be called once
** before any of the other fifo management functions are called.
** \return none.
**
****************************************************************************************/
static void UsbFifoMgrInit(void)
{
blt_int8u i;
tFifoCtrl *pbc1, *pbc2;
pbc1 = &fifoCtrl[0];
pbc2 = &fifoCtrl[1];
/* assign fifo handles and pointer to next free fifo */
for (i = 0; i < (FIFO_MAX_BUFFERS - 1); i++)
{
pbc1->handle = i;
pbc1->fifoctrlptr = pbc2;
pbc1++;
pbc2++;
}
/* initialize handle for the last one and use null-pointer for the next free fifo */
pbc1->handle = i;
pbc1->fifoctrlptr = (tFifoCtrl *)0;
fifoCtrlFree = &fifoCtrl[0];
} /*** end of UsbFifoMgrInit ***/
/************************************************************************************//**
** \brief Places a data storage array under fifo management control. A handle
** for identifying the fifo in subsequent fifo management function
** calls is returned, if successful.
** \param buffer Pointer to the first element in the data storage fifo.
** \param length Maximum number of data elements that can be stored in the fifo.
** \return Fifo handle if successfull, or FIFO_ERR_INVALID_HANDLE.
**
****************************************************************************************/
static blt_int8u UsbFifoMgrCreate(blt_int8u *buffer, blt_int8u length)
{
tFifoCtrl *pbc;
/* first determine if these is still a free fifo control available */
if (fifoCtrlFree == (tFifoCtrl *)0)
{
return FIFO_ERR_INVALID_HANDLE;
}
/* store pointer to free fifo and update pointer to next free one */
pbc = fifoCtrlFree;
fifoCtrlFree = pbc->fifoctrlptr;
/* initialize the buffer control */
pbc->length = length;
pbc->readptr = buffer;
pbc->writeptr = buffer;
pbc->entries = 0;
pbc->startptr = buffer;
pbc->endptr = (blt_int8u*)(buffer + length - 1);
/* return the handle to the successfully created fifo control */
return pbc->handle;
} /*** end of UsbFifoMgrCreate ***/
/************************************************************************************//**
** \brief Stores data in the fifo.
** \param handle Identifies the fifo to write data to.
** \param data Pointer to the data that is to be written to the fifo.
** \return BLT_TRUE if the data was successfully stored in the fifo, BLT_FALSE
** otherwise.
**
****************************************************************************************/
static blt_bool UsbFifoMgrWrite(blt_int8u handle, blt_int8u data)
{
/* check the validity of the handle parameter */
ASSERT_RT(handle < FIFO_MAX_BUFFERS);
/* check if fifo is full */
if (fifoCtrl[handle].entries == fifoCtrl[handle].length)
{
return BLT_FALSE;
}
/* copy data to fifo */
*fifoCtrl[handle].writeptr = data;
/* data written so update number of entries */
fifoCtrl[handle].entries++;
/* update write pointer */
fifoCtrl[handle].writeptr++;
/* check end of fifo */
if (fifoCtrl[handle].writeptr > fifoCtrl[handle].endptr)
{
/* set write pointer to start of the cyclic fifo */
fifoCtrl[handle].writeptr = fifoCtrl[handle].startptr;
}
/* still here so all is okay */
return BLT_TRUE;
} /*** end of UsbFifoMgrWrite ***/
/************************************************************************************//**
** \brief Retrieves data from the fifo.
** \param handle Identifies the fifo to read data from.
** \param data Pointer to where the read data is to be stored.
** \return BLT_TRUE if the data was successfully read from the fifo, BLT_FALSE
** otherwise.
**
****************************************************************************************/
static blt_bool UsbFifoMgrRead(blt_int8u handle, blt_int8u *data)
{
/* check the validity of the handle parameter */
ASSERT_RT(handle < FIFO_MAX_BUFFERS);
/* check if fifo is empty */
if (fifoCtrl[handle].entries == 0)
{
return BLT_FALSE;
}
/* read the data */
*data = *fifoCtrl[handle].readptr;
/* data read so update number of entries */
fifoCtrl[handle].entries--;
/* update read pointer */
fifoCtrl[handle].readptr++;
/* check end of fifo */
if (fifoCtrl[handle].readptr > fifoCtrl[handle].endptr)
{
/* set read pointer to start of the cyclic fifo */
fifoCtrl[handle].readptr = fifoCtrl[handle].startptr;
}
/* still here so all is good */
return BLT_TRUE;
} /*** end of UsbFifoMgrRead ***/
/************************************************************************************//**
** \brief Returns the number of data entries currently present in the fifo.
** \param handle Identifies the fifo that is to be scanned.
** \return Number of data entries in the fifo if successful, otherwise 0.
**
****************************************************************************************/
static blt_int8u UsbFifoMgrScan(blt_int8u handle)
{
/* check the validity of the handle parameter */
ASSERT_RT(handle < FIFO_MAX_BUFFERS);
/* read and return the number of data entries */
return fifoCtrl[handle].entries;
} /*** end of UsbFifoMgrScan ***/
#endif /* BOOT_COM_USB_ENABLE > 0 */
/*********************************** end of usb.c **************************************/

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Target/Source/ARMCM4_TM4C/usb.h Normal file
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@ -0,0 +1,48 @@
/************************************************************************************//**
* \file Source\ARMCM4_TM4C\usb.h
* \brief Bootloader USB communication interface header file.
* \ingroup Target_ARMCM4_TM4C
* \internal
*----------------------------------------------------------------------------------------
* C O P Y R I G H T
*----------------------------------------------------------------------------------------
* Copyright (c) 2011 by Feaser http://www.feaser.com All rights reserved
*
*----------------------------------------------------------------------------------------
* L I C E N S E
*----------------------------------------------------------------------------------------
* This file is part of OpenBLT. OpenBLT is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* OpenBLT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with OpenBLT.
* If not, see <http://www.gnu.org/licenses/>.
*
* A special exception to the GPL is included to allow you to distribute a combined work
* that includes OpenBLT without being obliged to provide the source code for any
* proprietary components. The exception text is included at the bottom of the license
* file <license.html>.
*
* \endinternal
****************************************************************************************/
#ifndef USB_H
#define USB_H
#if (BOOT_COM_USB_ENABLE > 0)
/****************************************************************************************
* Function prototypes
****************************************************************************************/
void UsbInit(void);
void UsbFree(void);
void UsbTransmitPacket(blt_int8u *data, blt_int8u len);
blt_bool UsbReceivePacket(blt_int8u *data);
#endif /* BOOT_COM_USB_ENABLE > 0 */
#endif /* USB_H */
/*********************************** end of usb.h **************************************/