315 lines
12 KiB
C
315 lines
12 KiB
C
/*
|
|
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
|
|
/*
|
|
* Endpoints to be used for USBD1.
|
|
*/
|
|
#define USBD1_DATA_REQUEST_EP 1
|
|
#define USBD1_DATA_AVAILABLE_EP 1
|
|
#define USBD1_INTERRUPT_REQUEST_EP 2
|
|
|
|
/*
|
|
* USB Device Descriptor.
|
|
*/
|
|
static const uint8_t vcom_device_descriptor_data[18] = {
|
|
USB_DESC_DEVICE (0x0110, /* bcdUSB (1.1). */
|
|
0x02, /* bDeviceClass (CDC). */
|
|
0x00, /* bDeviceSubClass. */
|
|
0x00, /* bDeviceProtocol. */
|
|
0x40, /* bMaxPacketSize. */
|
|
0x0483, /* idVendor (ST). */
|
|
0x5740, /* idProduct. */
|
|
0x0200, /* bcdDevice. */
|
|
1, /* iManufacturer. */
|
|
2, /* iProduct. */
|
|
3, /* iSerialNumber. */
|
|
1) /* bNumConfigurations. */
|
|
};
|
|
|
|
/*
|
|
* Device Descriptor wrapper.
|
|
*/
|
|
static const USBDescriptor vcom_device_descriptor = {
|
|
sizeof vcom_device_descriptor_data,
|
|
vcom_device_descriptor_data
|
|
};
|
|
|
|
/* Configuration Descriptor tree for a CDC.*/
|
|
static const uint8_t vcom_configuration_descriptor_data[67] = {
|
|
/* Configuration Descriptor.*/
|
|
USB_DESC_CONFIGURATION(67, /* wTotalLength. */
|
|
0x02, /* bNumInterfaces. */
|
|
0x01, /* bConfigurationValue. */
|
|
0, /* iConfiguration. */
|
|
0xC0, /* bmAttributes (self powered). */
|
|
50), /* bMaxPower (100mA). */
|
|
/* Interface Descriptor.*/
|
|
USB_DESC_INTERFACE (0x00, /* bInterfaceNumber. */
|
|
0x00, /* bAlternateSetting. */
|
|
0x01, /* bNumEndpoints. */
|
|
0x02, /* bInterfaceClass (Communications
|
|
Interface Class, CDC section
|
|
4.2). */
|
|
0x02, /* bInterfaceSubClass (Abstract
|
|
Control Model, CDC section 4.3). */
|
|
0x01, /* bInterfaceProtocol (AT commands,
|
|
CDC section 4.4). */
|
|
0), /* iInterface. */
|
|
/* Header Functional Descriptor (CDC section 5.2.3).*/
|
|
USB_DESC_BYTE (5), /* bLength. */
|
|
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
|
|
USB_DESC_BYTE (0x00), /* bDescriptorSubtype (Header
|
|
Functional Descriptor. */
|
|
USB_DESC_BCD (0x0110), /* bcdCDC. */
|
|
/* Call Management Functional Descriptor. */
|
|
USB_DESC_BYTE (5), /* bFunctionLength. */
|
|
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
|
|
USB_DESC_BYTE (0x01), /* bDescriptorSubtype (Call Management
|
|
Functional Descriptor). */
|
|
USB_DESC_BYTE (0x00), /* bmCapabilities (D0+D1). */
|
|
USB_DESC_BYTE (0x01), /* bDataInterface. */
|
|
/* ACM Functional Descriptor.*/
|
|
USB_DESC_BYTE (4), /* bFunctionLength. */
|
|
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
|
|
USB_DESC_BYTE (0x02), /* bDescriptorSubtype (Abstract
|
|
Control Management Descriptor). */
|
|
USB_DESC_BYTE (0x02), /* bmCapabilities. */
|
|
/* Union Functional Descriptor.*/
|
|
USB_DESC_BYTE (5), /* bFunctionLength. */
|
|
USB_DESC_BYTE (0x24), /* bDescriptorType (CS_INTERFACE). */
|
|
USB_DESC_BYTE (0x06), /* bDescriptorSubtype (Union
|
|
Functional Descriptor). */
|
|
USB_DESC_BYTE (0x00), /* bMasterInterface (Communication
|
|
Class Interface). */
|
|
USB_DESC_BYTE (0x01), /* bSlaveInterface0 (Data Class
|
|
Interface). */
|
|
/* Endpoint 2 Descriptor.*/
|
|
USB_DESC_ENDPOINT (USBD1_INTERRUPT_REQUEST_EP|0x80,
|
|
0x03, /* bmAttributes (Interrupt). */
|
|
0x0008, /* wMaxPacketSize. */
|
|
0xFF), /* bInterval. */
|
|
/* Interface Descriptor.*/
|
|
USB_DESC_INTERFACE (0x01, /* bInterfaceNumber. */
|
|
0x00, /* bAlternateSetting. */
|
|
0x02, /* bNumEndpoints. */
|
|
0x0A, /* bInterfaceClass (Data Class
|
|
Interface, CDC section 4.5). */
|
|
0x00, /* bInterfaceSubClass (CDC section
|
|
4.6). */
|
|
0x00, /* bInterfaceProtocol (CDC section
|
|
4.7). */
|
|
0x00), /* iInterface. */
|
|
/* Endpoint 3 Descriptor.*/
|
|
USB_DESC_ENDPOINT (USBD1_DATA_AVAILABLE_EP, /* bEndpointAddress.*/
|
|
0x02, /* bmAttributes (Bulk). */
|
|
0x0040, /* wMaxPacketSize. */
|
|
0x00), /* bInterval. */
|
|
/* Endpoint 1 Descriptor.*/
|
|
USB_DESC_ENDPOINT (USBD1_DATA_REQUEST_EP|0x80, /* bEndpointAddress.*/
|
|
0x02, /* bmAttributes (Bulk). */
|
|
0x0040, /* wMaxPacketSize. */
|
|
0x00) /* bInterval. */
|
|
};
|
|
|
|
/*
|
|
* Configuration Descriptor wrapper.
|
|
*/
|
|
static const USBDescriptor vcom_configuration_descriptor = {
|
|
sizeof vcom_configuration_descriptor_data,
|
|
vcom_configuration_descriptor_data
|
|
};
|
|
|
|
/*
|
|
* U.S. English language identifier.
|
|
*/
|
|
static const uint8_t vcom_string0[] = {
|
|
USB_DESC_BYTE(4), /* bLength. */
|
|
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
|
|
USB_DESC_WORD(0x0409) /* wLANGID (U.S. English). */
|
|
};
|
|
|
|
/*
|
|
* Vendor string.
|
|
*/
|
|
static const uint8_t vcom_string1[] = {
|
|
USB_DESC_BYTE(38), /* bLength. */
|
|
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
|
|
'S', 0, 'T', 0, 'M', 0, 'i', 0, 'c', 0, 'r', 0, 'o', 0, 'e', 0,
|
|
'l', 0, 'e', 0, 'c', 0, 't', 0, 'r', 0, 'o', 0, 'n', 0, 'i', 0,
|
|
'c', 0, 's', 0
|
|
};
|
|
|
|
/*
|
|
* Device Description string.
|
|
*/
|
|
static const uint8_t vcom_string2[] = {
|
|
USB_DESC_BYTE(56), /* bLength. */
|
|
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
|
|
'C', 0, 'h', 0, 'i', 0, 'b', 0, 'i', 0, 'O', 0, 'S', 0, '/', 0,
|
|
'R', 0, 'T', 0, ' ', 0, 'V', 0, 'i', 0, 'r', 0, 't', 0, 'u', 0,
|
|
'a', 0, 'l', 0, ' ', 0, 'C', 0, 'O', 0, 'M', 0, ' ', 0, 'P', 0,
|
|
'o', 0, 'r', 0, 't', 0
|
|
};
|
|
|
|
/*
|
|
* Serial Number string.
|
|
*/
|
|
static const uint8_t vcom_string3[] = {
|
|
USB_DESC_BYTE(8), /* bLength. */
|
|
USB_DESC_BYTE(USB_DESCRIPTOR_STRING), /* bDescriptorType. */
|
|
'0' + CH_KERNEL_MAJOR, 0,
|
|
'0' + CH_KERNEL_MINOR, 0,
|
|
'0' + CH_KERNEL_PATCH, 0
|
|
};
|
|
|
|
/*
|
|
* Strings wrappers array.
|
|
*/
|
|
static const USBDescriptor vcom_strings[] = {
|
|
{sizeof vcom_string0, vcom_string0},
|
|
{sizeof vcom_string1, vcom_string1},
|
|
{sizeof vcom_string2, vcom_string2},
|
|
{sizeof vcom_string3, vcom_string3}
|
|
};
|
|
|
|
/*
|
|
* Handles the GET_DESCRIPTOR callback. All required descriptors must be
|
|
* handled here.
|
|
*/
|
|
static const USBDescriptor *get_descriptor(USBDriver *usbp,
|
|
uint8_t dtype,
|
|
uint8_t dindex,
|
|
uint16_t lang) {
|
|
|
|
(void)usbp;
|
|
(void)lang;
|
|
switch (dtype) {
|
|
case USB_DESCRIPTOR_DEVICE:
|
|
return &vcom_device_descriptor;
|
|
case USB_DESCRIPTOR_CONFIGURATION:
|
|
return &vcom_configuration_descriptor;
|
|
case USB_DESCRIPTOR_STRING:
|
|
if (dindex < 4)
|
|
return &vcom_strings[dindex];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* @brief IN EP1 state.
|
|
*/
|
|
static USBInEndpointState ep1instate;
|
|
|
|
/**
|
|
* @brief OUT EP1 state.
|
|
*/
|
|
static USBOutEndpointState ep1outstate;
|
|
|
|
/**
|
|
* @brief EP1 initialization structure (both IN and OUT).
|
|
*/
|
|
static const USBEndpointConfig ep1config = {
|
|
USB_EP_MODE_TYPE_BULK,
|
|
NULL,
|
|
sduDataTransmitted,
|
|
sduDataReceived,
|
|
0x0040,
|
|
0x0040,
|
|
&ep1instate,
|
|
&ep1outstate,
|
|
2,
|
|
NULL
|
|
};
|
|
|
|
/**
|
|
* @brief IN EP2 state.
|
|
*/
|
|
static USBInEndpointState ep2instate;
|
|
|
|
/**
|
|
* @brief EP2 initialization structure (IN only).
|
|
*/
|
|
static const USBEndpointConfig ep2config = {
|
|
USB_EP_MODE_TYPE_INTR,
|
|
NULL,
|
|
sduInterruptTransmitted,
|
|
NULL,
|
|
0x0010,
|
|
0x0000,
|
|
&ep2instate,
|
|
NULL,
|
|
1,
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Handles the USB driver global events.
|
|
*/
|
|
static void usb_event(USBDriver *usbp, usbevent_t event) {
|
|
extern SerialUSBDriver SDU1;
|
|
|
|
switch (event) {
|
|
case USB_EVENT_RESET:
|
|
return;
|
|
case USB_EVENT_ADDRESS:
|
|
return;
|
|
case USB_EVENT_CONFIGURED:
|
|
chSysLockFromISR();
|
|
|
|
/* Enables the endpoints specified into the configuration.
|
|
Note, this callback is invoked from an ISR so I-Class functions
|
|
must be used.*/
|
|
usbInitEndpointI(usbp, USBD1_DATA_REQUEST_EP, &ep1config);
|
|
usbInitEndpointI(usbp, USBD1_INTERRUPT_REQUEST_EP, &ep2config);
|
|
|
|
/* Resetting the state of the CDC subsystem.*/
|
|
sduConfigureHookI(&SDU1);
|
|
|
|
chSysUnlockFromISR();
|
|
return;
|
|
case USB_EVENT_SUSPEND:
|
|
return;
|
|
case USB_EVENT_WAKEUP:
|
|
return;
|
|
case USB_EVENT_STALLED:
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* USB driver configuration.
|
|
*/
|
|
const USBConfig usbcfg = {
|
|
usb_event,
|
|
get_descriptor,
|
|
sduRequestsHook,
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Serial over USB driver configuration.
|
|
*/
|
|
const SerialUSBConfig serusbcfg = {
|
|
&USBD1,
|
|
USBD1_DATA_REQUEST_EP,
|
|
USBD1_DATA_AVAILABLE_EP,
|
|
USBD1_INTERRUPT_REQUEST_EP
|
|
};
|