usbd_cdc_vcp.c ( File view )

  • By gregkam 2014-10-06
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			/**
  ******************************************************************************
  * @file    usbd_cdc_vcp.c
  * @author  MCD Application Team
  * @version V1.1.0
  * @date    19-March-2012
  * @brief   Generic media access Layer.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (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.st.com/software_license_agreement_liberty_v2
  *
  * 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.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "usbd_cdc_vcp.h"
#include "usb_conf.h"

#include <FreeRTOS.h>
#include <queue.h>
#include <task.h>

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

static LINE_CODING linecoding = {

  115200, /* baud rate*/
  0x00,   /* stop bits-1*/
  0x00,   /* parity - none*/
  0x08    /* nb. of bits 8*/

};

/* These are external variables imported from CDC core to be used for IN
   transfer management. */
extern uint8_t  APP_Rx_Buffer []; /* Write CDC received data in this buffer.
                                     These data will be sent over USB IN endpoint
                                     in the CDC core functions. */
extern uint32_t APP_Rx_ptr_in;    /* Increment this pointer or roll it back to
                                     start address when writing received data
                                     in the buffer APP_Rx_Buffer. */

/** Size in bytes of the receive queue. */
#define RX_QUEUE_LEN 128

/** Receive buffer read by "VCP_Read". */
xQueueHandle g_rx_queue;

/* Private function prototypes -----------------------------------------------*/
static uint16_t VCP_DriverInit (void);
static uint16_t VCP_DeInit     (void);
static uint16_t VCP_Ctrl       (uint32_t Cmd, uint8_t* Buf, uint32_t Len);
static uint16_t VCP_DataRx     (uint8_t* Buf, uint32_t Len);

CDC_IF_Prop_TypeDef VCP_fops =
{

  VCP_DriverInit,
  VCP_DeInit,
  VCP_Ctrl,
  VCP_Write,
  VCP_DataRx

};

/* Private functions ---------------------------------------------------------*/
/**
  * @brief  VCP_DriverInit
  *         Initializes the Media on the STM32
  * @param  None
  * @retval Result of the opeartion (USBD_OK in all cases)
  */
static uint16_t VCP_DriverInit(void)
{

  return USBD_OK;

}

/**
  * @brief  VCP_DeInit
  *         DeInitializes the Media on the STM32
  * @param  None
  * @retval Result of the opeartion (USBD_OK in all cases)
  */
static uint16_t VCP_DeInit(void)
{

  return USBD_OK;

}


/**
  * @brief  VCP_Ctrl
  *         Manage the CDC class requests
  * @param  Cmd: Command code
  * @param  Buf: Buffer containing command data (request parameters)
  * @param  Len: Number of data to be sent (in bytes)
  * @retval Result of the opeartion (USBD_OK in all cases)
  */
static uint16_t VCP_Ctrl (uint32_t Cmd, uint8_t* Buf, uint32_t Len)
{

  switch (Cmd)
  {

  case SEND_ENCAPSULATED_COMMAND:
    /* Not  needed for this driver */
    break;

  case GET_ENCAPSULATED_RESPONSE:
    /* Not  needed for this driver */
    break;

  case SET_COMM_FEATURE:
    /* Not  needed for this driver */
    break;

  case GET_COMM_FEATURE:
    /* Not  needed for this driver */
    break;

  case CLEAR_COMM_FEATURE:
    /* Not  needed for this driver */
    break;

  case SET_LINE_CODING:
    linecoding.bitrate = (uint32_t)(Buf[0] | (Buf[1] << 8) | (Buf[2] << 16) | (Buf[3] << 24));
    linecoding.format = Buf[4];
    linecoding.paritytype = Buf[5];
    linecoding.datatype = Buf[6];
    /* Set the new configuration */
    // VCP_COMConfig(OTHER_CONFIG);
    break;

  case GET_LINE_CODING:
    Buf[0] = (uint8_t)(linecoding.bitrate);
    Buf[1] = (uint8_t)(linecoding.bitrate >> 8);
    Buf[2] = (uint8_t)(line
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.gitignore19.00 B2013-04-23|01:09
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.gitignore8.00 B2013-04-23|01:09
build.mk1.82 kB2013-04-23|01:09
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default_handlers.c6.01 kB2013-04-23|01:09
default_hooks.c159.00 B2013-04-23|01:09
syscalls.c3.28 kB2013-04-23|01:09
Makefile327.00 B2013-04-23|01:09
README.md217.00 B2013-04-23|01:09
config.mk.example151.00 B2013-04-23|01:09
01.97 kB
FreeRTOSConfig.h8.59 kB2013-04-23|01:09
arm_common_tables.h1.09 kB2013-04-23|01:09
arm_math.h234.69 kB2013-04-23|01:09
core_cm0.h31.20 kB2013-04-23|01:09
core_cm3.h68.09 kB2013-04-23|01:09
core_cm4.h77.42 kB2013-04-23|01:09
core_cm4_simd.h23.42 kB2013-04-23|01:09
core_cmFunc.h15.32 kB2013-04-23|01:09
core_cmInstr.h15.73 kB2013-04-23|01:09
stm32f4xx.h507.96 kB2013-04-23|01:09
system_stm32f4xx.h2.17 kB2013-04-23|01:09
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cortex-m4.mk646.00 B2013-04-23|01:09
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stm32f4.mk131.00 B2013-04-23|01:09
command.mk768.00 B2013-04-23|01:09
toolchain.mk150.00 B2013-04-23|01:09
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build.mk227.00 B2013-04-23|01:09
startup_stm32f4xx.s22.85 kB2013-04-23|01:09
system_stm32f4xx.c22.24 kB2013-04-23|01:09
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build.mk1.04 kB2013-04-23|01:09
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eeprom.h1.97 kB2013-04-23|01:09
gpio.h14.62 kB2013-04-23|01:09
i2c.h1.63 kB2013-04-23|01:09
interrupt.h1.61 kB2013-04-23|01:09
led.h904.00 B2013-04-23|01:09
rcc.h1.65 kB2013-04-23|01:09
spi.h3.46 kB2013-04-23|01:09
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irq.h6.68 kB2013-04-23|01:09
timer.h2.26 kB2013-04-23|01:09
usart.h3.38 kB2013-04-23|01:09
usb_cdc.h1.32 kB2013-04-23|01:09
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eeprom.c2.97 kB2013-04-23|01:09
fault.c1.38 kB2013-04-23|01:09
gpio.c5.12 kB2013-04-23|01:09
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interrupt.c744.00 B2013-04-23|01:09
led.c2.11 kB2013-04-23|01:09
rcc.c11.74 kB2013-04-23|01:09
spi.c12.33 kB2013-04-23|01:09
timer.c10.08 kB2013-04-23|01:09
usart.c10.83 kB2013-04-23|01:09
usb_cdc.c1.21 kB2013-04-23|01:09
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gdb-init61.00 B2013-04-23|01:09
gdb-tdesc-cortexm-fpa.xml5.74 kB2013-04-23|01:09
openocd-stm32f4.cfg124.00 B2013-04-23|01:09
stm32_flash.ld5.33 kB2013-04-23|01:09
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main.c2.92 kB2013-04-23|01:09
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main.c740.00 B2013-04-23|01:09
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.gitignore8.00 B2013-04-23|01:09
build.mk1.17 kB2013-04-23|01:09
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usb_bsp.h2.29 kB2013-04-23|01:09
usb_conf.h10.48 kB2013-04-23|01:09
usb_core.h12.29 kB2013-04-23|01:09
usb_dcd.h4.48 kB2013-04-23|01:09
usb_dcd_int.h3.03 kB2013-04-23|01:09
usb_defines.h6.52 kB2013-04-23|01:09
usb_hcd.h2.76 kB2013-04-23|01:09
usb_hcd_int.h3.65 kB2013-04-23|01:09
usb_otg.h1.97 kB2013-04-23|01:09
usb_regs.h21.22 kB2013-04-23|01:09
usbd_cdc_core.h3.87 kB2013-04-23|01:09
usbd_cdc_if_template.h1.85 kB2013-04-23|01:09
usbd_cdc_vcp.h2.89 kB2013-04-23|01:09
usbd_conf.h3.29 kB2013-04-23|01:09
usbd_core.h2.50 kB2013-04-23|01:09
usbd_def.h4.82 kB2013-04-23|01:09
usbd_desc.h3.35 kB2013-04-23|01:09
usbd_ioreq.h2.89 kB2013-04-23|01:09
usbd_req.h2.50 kB2013-04-23|01:09
usbd_usr.h3.00 kB2013-04-23|01:09
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usb_bsp.c3.27 kB2013-04-23|01:09
usb_core.c55.46 kB2013-04-23|01:09
usb_dcd.c9.21 kB2013-04-23|01:09
usb_dcd_int.c21.32 kB2013-04-23|01:09
usb_hcd.c5.62 kB2013-04-23|01:09
usb_hcd_int.c21.58 kB2013-04-23|01:09
usb_otg.c9.48 kB2013-04-23|01:09
usbd_cdc_core.c24.57 kB2013-04-23|01:09
usbd_cdc_if_template.c6.07 kB2013-04-23|01:09
usbd_cdc_vcp.c6.71 kB2013-04-23|01:09
usbd_core.c11.39 kB2013-04-23|01:09
usbd_desc.c8.23 kB2013-04-23|01:09
usbd_ioreq.c5.38 kB2013-04-23|01:09
usbd_req.c19.55 kB2013-04-23|01:09
usbd_usr.c3.48 kB2013-04-23|01:09
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