usbd_cdc_if_template.c

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#ifdef USB_OTG_HS_INTERNAL_DMA_ENABLED 
#pragma     data_alignment = 4 
#endif /* USB_OTG_HS_INTERNAL_DMA_ENABLED */

/* Includes ------------------------------------------------------------------*/
#include "usbd_cdc_if_template.h"

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

/* Private function prototypes -----------------------------------------------*/
static uint16_t TEMPLATE_Init     (void);
static uint16_t TEMPLATE_DeInit   (void);
static uint16_t TEMPLATE_Ctrl     (uint32_t Cmd, uint8_t* Buf, uint32_t Len);
static uint16_t TEMPLATE_DataTx   (uint8_t* Buf, uint32_t Len);
static uint16_t TEMPLATE_DataRx (uint8_t* Buf, uint32_t Len);

CDC_IF_Prop_TypeDef TEMPLATE_fops = 
{
  TEMPLATE_Init,
  TEMPLATE_DeInit,
  TEMPLATE_Ctrl,
  TEMPLATE_DataTx,
  TEMPLATE_DataRx
};

/* Private functions ---------------------------------------------------------*/

static uint16_t TEMPLATE_Init(void)
{
  /*
     Add your initialization code here 
  */  
  return USBD_OK;
}

static uint16_t TEMPLATE_DeInit(void)
{
  /*
     Add your deinitialization code here 
  */  
  return USBD_OK;
}


static uint16_t TEMPLATE_Ctrl (uint32_t Cmd, uint8_t* Buf, uint32_t Len)
{ 
  switch (Cmd)
  {
  case SEND_ENCAPSULATED_COMMAND:
    /* Add your code here */
    break;

  case GET_ENCAPSULATED_RESPONSE:
    /* Add your code here */
    break;

  case SET_COMM_FEATURE:
    /* Add your code here */
    break;

  case GET_COMM_FEATURE:
    /* Add your code here */
    break;

  case CLEAR_COMM_FEATURE:
    /* Add your code here */
    break;

  case SET_LINE_CODING:
    /* Add your code here */
    break;

  case GET_LINE_CODING:
    /* Add your code here */
    break;

  case SET_CONTROL_LINE_STATE:
    /* Add your code here */
    break;

  case SEND_BREAK:
     /* Add your code here */
    break;    
    
  default:
    break;
  }

  return USBD_OK;
}

static uint16_t TEMPLATE_DataTx (uint8_t* Buf, uint32_t Len)
{

  /* Get the data to be sent */
  for (i = 0; i < Len; i++)
  {
    /* APP_Rx_Buffer[APP_Rx_ptr_in] = XXX_ReceiveData(XXX); */
  }

  /* Increment the in pointer */
  APP_Rx_ptr_in++;
  
  /* To avoid buffer overflow */
  if(APP_Rx_ptr_in == APP_RX_DATA_SIZE)
  {
    APP_Rx_ptr_in = 0;
  }  
  
  return USBD_OK;
}

static uint16_t TEMPLATE_DataRx (uint8_t* Buf, uint32_t Len)
{
  uint32_t i;
  
  /* Send the received buffer */
  for (i = 0; i < Len; i++)
  {
    /* XXXX_SendData(XXXX, *(Buf + i) ); */
  } 
 
  return USBD_OK;
}

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/