394 lines
14 KiB
C
394 lines
14 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT 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.
|
|
|
|
ChibiOS/RT 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
#include "test.h"
|
|
|
|
#include "usb_cdc.h"
|
|
|
|
/*===========================================================================*/
|
|
/* USB related stuff. */
|
|
/*===========================================================================*/
|
|
|
|
/*
|
|
* USB Driver structure.
|
|
*/
|
|
static SerialUSBDriver SDU1;
|
|
|
|
/*
|
|
* 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 (INTERRUPT_REQUEST_EP|0x80, /* bEndpointAddress. */
|
|
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 (DATA_AVAILABLE_EP, /* bEndpointAddress. */
|
|
0x02, /* bmAttributes (Bulk). */
|
|
0x0040, /* wMaxPacketSize. */
|
|
0x00), /* bInterval. */
|
|
/* Endpoint 1 Descriptor.*/
|
|
USB_DESC_ENDPOINT (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 EP1 initialization structure (IN only).
|
|
*/
|
|
static const USBEndpointConfig ep1config = {
|
|
USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
|
|
NULL,
|
|
sduDataTransmitted,
|
|
NULL,
|
|
0x0040,
|
|
0x0000,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
/**
|
|
* @brief EP2 initialization structure (IN only).
|
|
*/
|
|
static const USBEndpointConfig ep2config = {
|
|
USB_EP_MODE_TYPE_INTR | USB_EP_MODE_PACKET,
|
|
NULL,
|
|
sduInterruptTransmitted,
|
|
NULL,
|
|
0x0010,
|
|
0x0000,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
/**
|
|
* @brief EP3 initialization structure (OUT only).
|
|
*/
|
|
static const USBEndpointConfig ep3config = {
|
|
USB_EP_MODE_TYPE_BULK | USB_EP_MODE_PACKET,
|
|
NULL,
|
|
NULL,
|
|
sduDataReceived,
|
|
0x0000,
|
|
0x0040,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* Handles the USB driver global events.
|
|
*/
|
|
static void usb_event(USBDriver *usbp, usbevent_t event) {
|
|
|
|
switch (event) {
|
|
case USB_EVENT_RESET:
|
|
return;
|
|
case USB_EVENT_ADDRESS:
|
|
return;
|
|
case USB_EVENT_CONFIGURED:
|
|
/* Enables the endpoints specified into the configuration.
|
|
Note, this callback is invoked from an ISR so I-Class functions
|
|
must be used.*/
|
|
chSysLockFromIsr();
|
|
usbInitEndpointI(usbp, DATA_REQUEST_EP, &ep1config);
|
|
usbInitEndpointI(usbp, INTERRUPT_REQUEST_EP, &ep2config);
|
|
usbInitEndpointI(usbp, DATA_AVAILABLE_EP, &ep3config);
|
|
chSysUnlockFromIsr();
|
|
return;
|
|
case USB_EVENT_SUSPEND:
|
|
return;
|
|
case USB_EVENT_WAKEUP:
|
|
return;
|
|
case USB_EVENT_STALLED:
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Serial over USB driver configuration.
|
|
*/
|
|
static const SerialUSBConfig serusbcfg = {
|
|
&USBD1,
|
|
{
|
|
usb_event,
|
|
get_descriptor,
|
|
sduRequestsHook,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
/*===========================================================================*/
|
|
/* Generic code. */
|
|
/*===========================================================================*/
|
|
|
|
/*
|
|
* Red LED blinker thread, times are in milliseconds.
|
|
*/
|
|
static WORKING_AREA(waThread1, 128);
|
|
static msg_t Thread1(void *arg) {
|
|
|
|
(void)arg;
|
|
while (TRUE) {
|
|
palClearPad(IOPORT3, GPIOC_LED);
|
|
chThdSleepMilliseconds(500);
|
|
palSetPad(IOPORT3, GPIOC_LED);
|
|
chThdSleepMilliseconds(500);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* USB CDC loopback thread.
|
|
*/
|
|
static WORKING_AREA(waThread2, 256);
|
|
static msg_t Thread2(void *arg) {
|
|
SerialUSBDriver *sdup = arg;
|
|
EventListener el;
|
|
|
|
chEvtRegisterMask(chIOGetEventSource(&SDU1), &el, 1);
|
|
while (TRUE) {
|
|
chEvtWaitAny(ALL_EVENTS);
|
|
if (chOQIsEmptyI(&SDU1.oqueue)) {
|
|
uint8_t buffer[0x40];
|
|
size_t n = chIQReadTimeout(&sdup->iqueue, buffer,
|
|
sizeof(buffer), TIME_IMMEDIATE);
|
|
if (n > 0)
|
|
chOQWriteTimeout(&sdup->oqueue, buffer, n, TIME_IMMEDIATE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Application entry point.
|
|
*/
|
|
int main(void) {
|
|
|
|
/*
|
|
* System initializations.
|
|
* - HAL initialization, this also initializes the configured device drivers
|
|
* and performs the board-specific initializations.
|
|
* - Kernel initialization, the main() function becomes a thread and the
|
|
* RTOS is active.
|
|
*/
|
|
halInit();
|
|
chSysInit();
|
|
|
|
/*
|
|
* Activates the USB driver and then the USB bus pull-up on D+.
|
|
*/
|
|
sduObjectInit(&SDU1);
|
|
sduStart(&SDU1, &serusbcfg);
|
|
palClearPad(GPIOC, GPIOC_USB_DISC);
|
|
|
|
/*
|
|
* Activates the serial driver 2 using the driver default configuration.
|
|
*/
|
|
sdStart(&SD2, NULL);
|
|
|
|
/*
|
|
* Creates the blinker thread.
|
|
*/
|
|
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
|
|
|
|
/*
|
|
* Creates the USB CDC loopback thread.
|
|
*/
|
|
chThdCreateStatic(waThread2, sizeof(waThread2), NORMALPRIO, Thread2, &SDU1);
|
|
|
|
/*
|
|
* Normal main() thread activity, in this demo it does nothing except
|
|
* sleeping in a loop and check the button state.
|
|
*/
|
|
while (TRUE) {
|
|
if (palReadPad(IOPORT1, GPIOA_BUTTON))
|
|
TestThread(&SD2);
|
|
chThdSleepMilliseconds(1000);
|
|
}
|
|
}
|