532 lines
18 KiB
C
532 lines
18 KiB
C
/******************************************************************************
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* The MIT License
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*
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* Copyright (c) 2011 LeafLabs LLC.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*****************************************************************************/
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/**
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* @file libmaple/usb/stm32f1/usb_hid.c
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* @brief USB HID (human interface device) support
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*
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* FIXME: this works on the STM32F1 USB peripherals, and probably no
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* place else. Nonportable bits really need to be factored out, and
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* the result made cleaner.
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*/
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#include <string.h>
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#include <libmaple/libmaple_types.h>
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#include <libmaple/usb.h>
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#include <libmaple/nvic.h>
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#include <libmaple/delay.h>
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#include <libmaple/gpio.h>
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#include <usb_lib_globals.h>
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#include <usb_reg_map.h>
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//#include <usb_core.h>
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#include <board/board.h>
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//uint16 GetEPTxAddr(uint8 /*bEpNum*/);
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/* usb_lib headers */
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#include "usb_type.h"
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#include "usb_core.h"
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#include "usb_def.h"
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#include "usb_generic.h"
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// Are we currently sending an IN packet?
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volatile int8 usbGenericTransmitting = -1;
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static uint8* usbGetConfigDescriptor(uint16 length);
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static void usbInit(void);
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static void usbReset(void);
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static void usbClearFeature(void);
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static void usbSetConfiguration(void);
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static RESULT usbDataSetup(uint8 request);
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static RESULT usbNoDataSetup(uint8 request);
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static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting);
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static uint8* usbGetStringDescriptor(uint16 length);
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static uint8* usbGetConfigDescriptor(uint16 length);
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static uint8* usbGetDeviceDescriptor(uint16 length);
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static void usbSetConfiguration(void);
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static void usbSetDeviceAddress(void);
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#define LEAFLABS_ID_VENDOR 0x1EAF
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#define MAPLE_ID_PRODUCT 0x0004 // was 0x0024
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#define USB_DEVICE_CLASS 0x00
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#define USB_DEVICE_SUBCLASS 0x00
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#define DEVICE_PROTOCOL 0x01
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#define HID_DESCRIPTOR_TYPE 0x21
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static usb_descriptor_device usbGenericDescriptor_Device =
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{
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.bLength = sizeof(usb_descriptor_device),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_DEVICE,
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.bcdUSB = 0x0200,
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.bDeviceClass = USB_DEVICE_CLASS,
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.bDeviceSubClass = USB_DEVICE_SUBCLASS,
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.bDeviceProtocol = DEVICE_PROTOCOL,
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.bMaxPacketSize0 = 0x40,
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.idVendor = LEAFLABS_ID_VENDOR,
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.idProduct = MAPLE_ID_PRODUCT,
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.bcdDevice = 0x0200,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x00,
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.bNumConfigurations = 0x01,
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};
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typedef struct {
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usb_descriptor_config_header Config_Header;
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uint8 descriptorData[MAX_USB_DESCRIPTOR_DATA_SIZE];
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} __packed usb_descriptor_config;
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static usb_descriptor_config usbConfig;
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#define MAX_POWER (100 >> 1)
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static const usb_descriptor_config_header Base_Header = {
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.bLength = sizeof(usb_descriptor_config_header),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_CONFIGURATION,
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.wTotalLength = 0,
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.bNumInterfaces = 0,
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.bConfigurationValue = 0x01,
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.iConfiguration = 0x00,
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.bmAttributes = (USB_CONFIG_ATTR_BUSPOWERED |
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USB_CONFIG_ATTR_SELF_POWERED),
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.bMaxPower = MAX_POWER,
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};
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static ONE_DESCRIPTOR Device_Descriptor = {
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(uint8*)&usbGenericDescriptor_Device,
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sizeof(usb_descriptor_device)
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};
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static ONE_DESCRIPTOR Config_Descriptor = {
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(uint8*)&usbConfig,
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0
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};
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static DEVICE my_Device_Table = {
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.Total_Endpoint = 0,
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.Total_Configuration = 1
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};
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/* Unicode language identifier: 0x0409 is US English */
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/* FIXME move to Wirish */
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static const usb_descriptor_string usbHIDDescriptor_LangID = {
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.bLength = USB_DESCRIPTOR_STRING_LEN(1),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_STRING,
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.bString = {0x09, 0x04},
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};
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#define default_iManufacturer_length 8
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const usb_descriptor_string usb_generic_default_iManufacturer = {
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.bLength = USB_DESCRIPTOR_STRING_LEN(default_iManufacturer_length),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_STRING,
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.bString = {'L', 0, 'e', 0, 'a', 0, 'f', 0, 'L', 0, 'a', 0, 'b', 0, 's', 0},
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};
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#define default_iProduct_length 5
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const usb_descriptor_string usb_generic_default_iProduct = {
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.bLength = USB_DESCRIPTOR_STRING_LEN(default_iProduct_length),
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.bDescriptorType = USB_DESCRIPTOR_TYPE_STRING,
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.bString = {'M', 0, 'a', 0, 'p', 0, 'l', 0, 'e', 0},
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};
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#define MAX_PACKET_SIZE 0x40 /* 64B, maximum for USB FS Devices */
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static DEVICE_PROP my_Device_Property = {
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.Init = usbInit,
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.Reset = usbReset,
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.Process_Status_IN = NOP_Process,
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.Process_Status_OUT = NOP_Process,
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.Class_Data_Setup = usbDataSetup,
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.Class_NoData_Setup = usbNoDataSetup,
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.Class_Get_Interface_Setting = usbGetInterfaceSetting,
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.GetDeviceDescriptor = usbGetDeviceDescriptor,
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.GetConfigDescriptor = usbGetConfigDescriptor,
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.GetStringDescriptor = usbGetStringDescriptor,
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.RxEP_buffer = NULL,
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.MaxPacketSize = MAX_PACKET_SIZE
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};
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static const USER_STANDARD_REQUESTS my_User_Standard_Requests = {
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.User_GetConfiguration = NOP_Process,
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.User_SetConfiguration = usbSetConfiguration,
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.User_GetInterface = NOP_Process,
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.User_SetInterface = NOP_Process,
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.User_GetStatus = NOP_Process,
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.User_ClearFeature = usbClearFeature,
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.User_SetEndPointFeature = NOP_Process,
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.User_SetDeviceFeature = NOP_Process,
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.User_SetDeviceAddress = usbSetDeviceAddress
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};
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static uint8 numStringDescriptors = 3;
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#define MAX_STRING_DESCRIPTORS 4
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static ONE_DESCRIPTOR String_Descriptor[MAX_STRING_DESCRIPTORS] = {
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{(uint8*)&usbHIDDescriptor_LangID, USB_DESCRIPTOR_STRING_LEN(1)},
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{(uint8*)&usb_generic_default_iManufacturer, USB_DESCRIPTOR_STRING_LEN(default_iManufacturer_length)},
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{(uint8*)&usb_generic_default_iProduct, USB_DESCRIPTOR_STRING_LEN(default_iProduct_length)},
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{NULL, 0},
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};
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static USBCompositePart** parts;
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static uint32 numParts;
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static DEVICE saved_Device_Table;
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static DEVICE_PROP saved_Device_Property;
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static USER_STANDARD_REQUESTS saved_User_Standard_Requests;
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static void (*ep_int_in[7])(void);
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static void (*ep_int_out[7])(void);
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uint8 usb_generic_set_parts(USBCompositePart** _parts, unsigned _numParts) {
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parts = _parts;
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numParts = _numParts;
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unsigned numInterfaces = 0;
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unsigned numEndpoints = 1;
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uint16 usbDescriptorSize = 0;
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uint16 pmaOffset = USB_EP0_RX_BUFFER_ADDRESS + USB_EP0_BUFFER_SIZE;
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for (unsigned i = 0 ; i < 7 ; i++) {
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ep_int_in[i] = NOP_Process;
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ep_int_out[i] = NOP_Process;
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}
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usbDescriptorSize = 0;
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for (unsigned i = 0 ; i < _numParts ; i++ ) {
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parts[i]->startInterface = numInterfaces;
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numInterfaces += parts[i]->numInterfaces;
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if (numEndpoints + parts[i]->numEndpoints > 8) {
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return 0;
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}
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if (usbDescriptorSize + parts[i]->descriptorSize > MAX_USB_DESCRIPTOR_DATA_SIZE) {
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return 0;
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}
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parts[i]->startEndpoint = numEndpoints;
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USBEndpointInfo* ep = parts[i]->endpoints;
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for (unsigned j = 0 ; j < parts[i]->numEndpoints ; j++) {
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if (ep[j].bufferSize + pmaOffset > PMA_MEMORY_SIZE) {
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return 0;
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}
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ep[j].pmaAddress = pmaOffset;
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pmaOffset += ep[j].bufferSize;
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ep[j].address = numEndpoints;
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if (ep[j].callback == NULL)
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ep[j].callback = NOP_Process;
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if (ep[j].tx) {
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ep_int_in[numEndpoints - 1] = ep[j].callback;
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}
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else {
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ep_int_out[numEndpoints - 1] = ep[j].callback;
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}
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numEndpoints++;
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}
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parts[i]->getPartDescriptor(usbConfig.descriptorData + usbDescriptorSize);
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usbDescriptorSize += parts[i]->descriptorSize;
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}
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usbConfig.Config_Header = Base_Header;
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usbConfig.Config_Header.bNumInterfaces = numInterfaces;
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usbConfig.Config_Header.wTotalLength = usbDescriptorSize + sizeof(Base_Header);
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Config_Descriptor.Descriptor_Size = usbConfig.Config_Header.wTotalLength;
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my_Device_Table.Total_Endpoint = numEndpoints;
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return 1;
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}
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void usb_generic_set_info( uint16 idVendor, uint16 idProduct, const uint8* iManufacturer, const uint8* iProduct, const uint8* iSerialNumber) {
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if (idVendor != 0)
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usbGenericDescriptor_Device.idVendor = idVendor;
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else
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usbGenericDescriptor_Device.idVendor = LEAFLABS_ID_VENDOR;
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if (idProduct != 0)
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usbGenericDescriptor_Device.idProduct = idProduct;
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else
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usbGenericDescriptor_Device.idProduct = MAPLE_ID_PRODUCT;
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if (iManufacturer == NULL) {
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iManufacturer = (uint8*)&usb_generic_default_iManufacturer;
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}
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String_Descriptor[1].Descriptor = (uint8*)iManufacturer;
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String_Descriptor[1].Descriptor_Size = iManufacturer[0];
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if (iProduct == NULL) {
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iProduct = (uint8*)&usb_generic_default_iProduct;
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}
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String_Descriptor[2].Descriptor = (uint8*)iProduct;
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String_Descriptor[2].Descriptor_Size = iProduct[0];
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if (iSerialNumber == NULL) {
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numStringDescriptors = 3;
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usbGenericDescriptor_Device.iSerialNumber = 0;
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}
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else {
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String_Descriptor[3].Descriptor = (uint8*)iSerialNumber;
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String_Descriptor[3].Descriptor_Size = iSerialNumber[0];
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numStringDescriptors = 4;
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usbGenericDescriptor_Device.iSerialNumber = 3;
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}
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}
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void usb_generic_enable(void) {
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/* Present ourselves to the host. Writing 0 to "disc" pin must
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* pull USB_DP pin up while leaving USB_DM pulled down by the
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* transceiver. See USB 2.0 spec, section 7.1.7.3. */
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#ifdef GENERIC_BOOTLOADER
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//Reset the USB interface on generic boards - developed by Victor PV
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gpio_set_mode(GPIOA, 12, GPIO_OUTPUT_PP);
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gpio_write_bit(GPIOA, 12, 0);
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for(volatile unsigned int i=0;i<512;i++);// Only small delay seems to be needed
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gpio_set_mode(GPIOA, 12, GPIO_INPUT_FLOATING);
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#endif
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if (BOARD_USB_DISC_DEV != NULL) {
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gpio_set_mode(BOARD_USB_DISC_DEV, (uint8)(uint32)BOARD_USB_DISC_BIT, GPIO_OUTPUT_PP);
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gpio_write_bit(BOARD_USB_DISC_DEV, (uint8)(uint32)BOARD_USB_DISC_BIT, 0);
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}
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saved_Device_Table = Device_Table;
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saved_Device_Property = Device_Property;
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saved_User_Standard_Requests = User_Standard_Requests;
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Device_Table = my_Device_Table;
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Device_Property = my_Device_Property;
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User_Standard_Requests = my_User_Standard_Requests;
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/* Initialize the USB peripheral. */
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usb_init_usblib(USBLIB, ep_int_in, ep_int_out);
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}
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static void usbInit(void) {
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pInformation->Current_Configuration = 0;
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USB_BASE->CNTR = USB_CNTR_FRES;
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USBLIB->irq_mask = 0;
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USB_BASE->CNTR = USBLIB->irq_mask;
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USB_BASE->ISTR = 0;
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USBLIB->irq_mask = USB_CNTR_RESETM | USB_CNTR_SUSPM | USB_CNTR_WKUPM;
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USB_BASE->CNTR = USBLIB->irq_mask;
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USB_BASE->ISTR = 0;
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USBLIB->irq_mask = USB_ISR_MSK;
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USB_BASE->CNTR = USBLIB->irq_mask;
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nvic_irq_enable(NVIC_USB_LP_CAN_RX0);
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for (unsigned i = 0 ; i < numParts ; i++)
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if(parts[i]->usbInit != NULL)
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parts[i]->usbInit();
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USBLIB->state = USB_UNCONNECTED;
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}
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#define BTABLE_ADDRESS 0x00
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static void usbReset(void) {
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pInformation->Current_Configuration = 0;
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/* current feature is current bmAttributes */
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pInformation->Current_Feature = (USB_CONFIG_ATTR_BUSPOWERED |
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USB_CONFIG_ATTR_SELF_POWERED);
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USB_BASE->BTABLE = BTABLE_ADDRESS;
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/* setup control endpoint 0 */
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usb_set_ep_type(USB_EP0, USB_EP_EP_TYPE_CONTROL);
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usb_set_ep_tx_stat(USB_EP0, USB_EP_STAT_TX_STALL);
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usb_set_ep_rx_addr(USB_EP0, USB_EP0_RX_BUFFER_ADDRESS);
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usb_set_ep_tx_addr(USB_EP0, USB_EP0_TX_BUFFER_ADDRESS);
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usb_clear_status_out(USB_EP0);
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usb_set_ep_rx_count(USB_EP0, USB_EP0_BUFFER_SIZE);
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usb_set_ep_rx_stat(USB_EP0, USB_EP_STAT_RX_VALID);
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for (unsigned i = 0 ; i < numParts ; i++) {
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for (unsigned j = 0 ; j < parts[i]->numEndpoints ; j++) {
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USBEndpointInfo* e = &(parts[i]->endpoints[j]);
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uint8 address = e->address;
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usb_set_ep_type(address, e->type);
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if (parts[i]->endpoints[j].tx) {
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usb_set_ep_tx_addr(address, e->pmaAddress);
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usb_set_ep_tx_stat(address, USB_EP_STAT_TX_NAK);
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usb_set_ep_rx_stat(address, USB_EP_STAT_RX_DISABLED);
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}
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else {
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usb_set_ep_rx_addr(address, e->pmaAddress);
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usb_set_ep_rx_count(address, e->bufferSize);
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usb_set_ep_rx_stat(address, USB_EP_STAT_RX_VALID);
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}
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}
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if (parts[i]->usbReset != NULL)
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parts[i]->usbReset();
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}
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usbGenericTransmitting = -1;
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USBLIB->state = USB_ATTACHED;
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SetDeviceAddress(0);
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}
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static void usb_power_down(void) {
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USB_BASE->CNTR = USB_CNTR_FRES;
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USB_BASE->ISTR = 0;
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USB_BASE->CNTR = USB_CNTR_FRES + USB_CNTR_PDWN;
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}
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void usb_generic_disable(void) {
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/* Turn off the interrupt and signal disconnect (see e.g. USB 2.0
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* spec, section 7.1.7.3). */
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nvic_irq_disable(NVIC_USB_LP_CAN_RX0);
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if (BOARD_USB_DISC_DEV != NULL) {
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gpio_write_bit(BOARD_USB_DISC_DEV, (uint8)(uint32)BOARD_USB_DISC_BIT, 1);
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}
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usb_power_down();
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Device_Table = saved_Device_Table;
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Device_Property = saved_Device_Property;
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User_Standard_Requests = saved_User_Standard_Requests;
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}
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static RESULT usbDataSetup(uint8 request) {
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uint8* (*CopyRoutine)(uint16) = 0;
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if(Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT) && request == GET_DESCRIPTOR &&
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pInformation->USBwValue1 == HID_DESCRIPTOR_TYPE){
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CopyRoutine = usbGetConfigDescriptor;
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}
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if (CopyRoutine == NULL){
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for (unsigned i = 0 ; i < numParts ; i++) {
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RESULT r = parts[i]->usbDataSetup(request);
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if (USB_UNSUPPORT != r)
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return r;
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}
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return USB_UNSUPPORT;
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}
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pInformation->Ctrl_Info.CopyData = CopyRoutine;
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pInformation->Ctrl_Info.Usb_wOffset = 0;
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(*CopyRoutine)(0);
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return USB_SUCCESS;
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}
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static RESULT usbNoDataSetup(uint8 request) {
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for (unsigned i = 0 ; i < numParts ; i++) {
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RESULT r = parts[i]->usbNoDataSetup(request);
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if (USB_UNSUPPORT != r)
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return r;
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}
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return USB_UNSUPPORT;
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}
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static void usbSetConfiguration(void) {
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if (pInformation->Current_Configuration != 0) {
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USBLIB->state = USB_CONFIGURED;
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}
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for (unsigned i = 0 ; i < numParts ; i++) {
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if (parts[i]->usbSetConfiguration != NULL)
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parts[i]->usbSetConfiguration();
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}
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}
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static void usbClearFeature(void) {
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for (unsigned i = 0 ; i < numParts ; i++) {
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if (parts[i]->usbClearFeature != NULL)
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parts[i]->usbClearFeature();
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}
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}
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static void usbSetDeviceAddress(void) {
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USBLIB->state = USB_ADDRESSED;
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}
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static uint8* usbGetDeviceDescriptor(uint16 length) {
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return Standard_GetDescriptorData(length, &Device_Descriptor);
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}
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|
|
static uint8* usbGetConfigDescriptor(uint16 length) {
|
|
return Standard_GetDescriptorData(length, &Config_Descriptor);
|
|
}
|
|
|
|
static uint8* usbGetStringDescriptor(uint16 length) {
|
|
uint8 wValue0 = pInformation->USBwValue0;
|
|
|
|
if (wValue0 >= numStringDescriptors) {
|
|
return NULL;
|
|
}
|
|
return Standard_GetDescriptorData(length, &String_Descriptor[wValue0]);
|
|
}
|
|
|
|
|
|
static RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting) {
|
|
if (alt_setting > 0) {
|
|
return USB_UNSUPPORT;
|
|
} else if (interface >= usbConfig.Config_Header.bNumInterfaces) {
|
|
return USB_UNSUPPORT;
|
|
}
|
|
|
|
return USB_SUCCESS;
|
|
}
|
|
|
|
void usb_copy_to_pma(const uint8 *buf, uint16 len, uint16 pma_offset) {
|
|
uint16 *dst = (uint16*)usb_pma_ptr(pma_offset);
|
|
uint16 n = len >> 1;
|
|
uint16 i;
|
|
for (i = 0; i < n; i++) {
|
|
*dst = (uint16)(*buf) | *(buf + 1) << 8;
|
|
buf += 2;
|
|
dst += 2;
|
|
}
|
|
if (len & 1) {
|
|
*dst = *buf;
|
|
}
|
|
}
|
|
|
|
void usb_copy_from_pma(uint8 *buf, uint16 len, uint16 pma_offset) {
|
|
uint32 *src = (uint32*)usb_pma_ptr(pma_offset);
|
|
uint16 *dst = (uint16*)buf;
|
|
uint16 n = len >> 1;
|
|
uint16 i;
|
|
for (i = 0; i < n; i++) {
|
|
*dst++ = *src++;
|
|
}
|
|
if (len & 1) {
|
|
*dst = *src & 0xFF;
|
|
}
|
|
}
|
|
|