--- /dev/null
+/**
+ ******************************************************************************
+ * @file usbd_cdc_if_template.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 22-July-2011
+ * @brief Generic media access Layer.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+#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"
+#include "stm32_eval.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 ---------------------------------------------------------*/
+
+/**
+ * @brief TEMPLATE_Init
+ * Initializes the CDC media low layer
+ * @param None
+ * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+ */
+static uint16_t TEMPLATE_Init(void)
+{
+ /*
+ Add your initialization code here
+ */
+ return USBD_OK;
+}
+
+/**
+ * @brief TEMPLATE_DeInit
+ * DeInitializes the CDC media low layer
+ * @param None
+ * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+ */
+static uint16_t TEMPLATE_DeInit(void)
+{
+ /*
+ Add your deinitialization code here
+ */
+ return USBD_OK;
+}
+
+
+/**
+ * @brief TEMPLATE_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 if all operations are OK else USBD_FAIL
+ */
+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;
+}
+
+/**
+ * @brief TEMPLATE_DataTx
+ * CDC received data to be send over USB IN endpoint are managed in
+ * this function.
+ * @param Buf: Buffer of data to be sent
+ * @param Len: Number of data to be sent (in bytes)
+ * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+ */
+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;
+}
+
+/**
+ * @brief TEMPLATE_DataRx
+ * Data received over USB OUT endpoint are sent over CDC interface
+ * through this function.
+ *
+ * @note
+ * This function will block any OUT packet reception on USB endpoint
+ * untill exiting this function. If you exit this function before transfer
+ * is complete on CDC interface (ie. using DMA controller) it will result
+ * in receiving more data while previous ones are still not sent.
+ *
+ * @param Buf: Buffer of data to be received
+ * @param Len: Number of data received (in bytes)
+ * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL
+ */
+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 2011 STMicroelectronics *****END OF FILE****/
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