diff --git a/usbd_cdc_if.c b/usbd_cdc_if.c new file mode 100644 --- /dev/null +++ b/usbd_cdc_if.c @@ -0,0 +1,280 @@ +/** + ****************************************************************************** + * @file : usbd_cdc_if.c + * @author : MCD Application Team + * @version : V1.1.0 + * @date : 19-March-2012 + * @brief : + ****************************************************************************** + * COPYRIGHT(c) 2015 STMicroelectronics + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** +*/ + +/* Includes ------------------------------------------------------------------*/ +#include "usbd_cdc_if.h" + +/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY + * @{ + */ + +/** @defgroup USBD_CDC + * @brief usbd core module + * @{ + */ + +/** @defgroup USBD_CDC_Private_TypesDefinitions + * @{ + */ + /* USER CODE BEGIN 0 */ + /* USER CODE END 0 */ +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_Defines + * @{ + */ + /* USER CODE BEGIN 1 */ +/* Define size for the receive and transmit buffer over CDC */ +/* It's up to user to redefine and/or remove those define */ +#define APP_RX_DATA_SIZE 512 +#define APP_TX_DATA_SIZE 512 + /* USER CODE END 1 */ +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_Macros + * @{ + */ + /* USER CODE BEGIN 2 */ + /* USER CODE END 2 */ +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_Variables + * @{ + */ + /* USER CODE BEGIN 3 */ +/* Create buffer for reception and transmission */ +/* It's up to user to redefine and/or remove those define */ +/* Received Data over USB are stored in this buffer */ +uint8_t UserRxBufferFS[APP_RX_DATA_SIZE]; + +/* Send Data over USB CDC are stored in this buffer */ +uint8_t UserTxBufferFS[APP_TX_DATA_SIZE]; + + /* USER CODE END 3 */ + +/* USB handler declaration */ +/* Handle for USB Full Speed IP */ +USBD_HandleTypeDef *hUsbDevice_0; + +extern USBD_HandleTypeDef hUsbDeviceFS; + +/** + * @} + */ + +/** @defgroup USBD_CDC_Private_FunctionPrototypes + * @{ + */ +static int8_t CDC_Init_FS (void); +static int8_t CDC_DeInit_FS (void); +static int8_t CDC_Control_FS (uint8_t cmd, uint8_t* pbuf, uint16_t length); +static int8_t CDC_Receive_FS (uint8_t* pbuf, uint32_t *Len); + +USBD_CDC_ItfTypeDef USBD_Interface_fops_FS = +{ + CDC_Init_FS, + CDC_DeInit_FS, + CDC_Control_FS, + CDC_Receive_FS +}; + +/* Private functions ---------------------------------------------------------*/ +/** + * @brief CDC_Init_FS + * Initializes the CDC media low layer over the FS USB IP + * @param None + * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL + */ +static int8_t CDC_Init_FS(void) +{ + hUsbDevice_0 = &hUsbDeviceFS; + /* USER CODE BEGIN 4 */ + /* Set Application Buffers */ + USBD_CDC_SetTxBuffer(hUsbDevice_0, UserTxBufferFS, 0); + USBD_CDC_SetRxBuffer(hUsbDevice_0, UserRxBufferFS); + return (USBD_OK); + /* USER CODE END 4 */ +} + +/** + * @brief CDC_DeInit_FS + * DeInitializes the CDC media low layer + * @param None + * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL + */ +static int8_t CDC_DeInit_FS(void) +{ + /* USER CODE BEGIN 5 */ + return (USBD_OK); + /* USER CODE END 5 */ +} + +/** + * @brief CDC_Control_FS + * 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 int8_t CDC_Control_FS (uint8_t cmd, uint8_t* pbuf, uint16_t length) +{ + /* USER CODE BEGIN 6 */ + switch (cmd) + { + case CDC_SEND_ENCAPSULATED_COMMAND: + + break; + + case CDC_GET_ENCAPSULATED_RESPONSE: + + break; + + case CDC_SET_COMM_FEATURE: + + break; + + case CDC_GET_COMM_FEATURE: + + break; + + case CDC_CLEAR_COMM_FEATURE: + + break; + + /*******************************************************************************/ + /* Line Coding Structure */ + /*-----------------------------------------------------------------------------*/ + /* Offset | Field | Size | Value | Description */ + /* 0 | dwDTERate | 4 | Number |Data terminal rate, in bits per second*/ + /* 4 | bCharFormat | 1 | Number | Stop bits */ + /* 0 - 1 Stop bit */ + /* 1 - 1.5 Stop bits */ + /* 2 - 2 Stop bits */ + /* 5 | bParityType | 1 | Number | Parity */ + /* 0 - None */ + /* 1 - Odd */ + /* 2 - Even */ + /* 3 - Mark */ + /* 4 - Space */ + /* 6 | bDataBits | 1 | Number Data bits (5, 6, 7, 8 or 16). */ + /*******************************************************************************/ + case CDC_SET_LINE_CODING: + + break; + + case CDC_GET_LINE_CODING: + + break; + + case CDC_SET_CONTROL_LINE_STATE: + + break; + + case CDC_SEND_BREAK: + + break; + + default: + break; + } + + return (USBD_OK); + /* USER CODE END 6 */ +} + +/** + * @brief CDC_Receive_FS + * 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 int8_t CDC_Receive_FS (uint8_t* Buf, uint32_t *Len) +{ + /* USER CODE BEGIN 7 */ + return (USBD_OK); + /* USER CODE END 7 */ +} + +/** + * @brief CDC_Transmit_FS + * Data send over USB IN endpoint are sent over CDC interface + * through this function. + * @note + * + * + * @param Buf: Buffer of data to be send + * @param Len: Number of data to be send (in bytes) + * @retval Result of the opeartion: USBD_OK if all operations are OK else USBD_FAIL or USBD_BUSY + */ +uint8_t CDC_Transmit_FS(uint8_t* Buf, uint16_t Len) +{ + uint8_t result = USBD_OK; + /* USER CODE BEGIN 8 */ + USBD_CDC_SetTxBuffer(hUsbDevice_0, UserTxBufferFS, Len); + result = USBD_CDC_TransmitPacket(hUsbDevice_0); + /* USER CODE END 8 */ + return result; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +