text: /**
    ******************************************************************************
    * @file    usbd_cdc.h
    * @author  MCD Application Team
    * @brief   header file for the usbd_cdc.c file.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2015 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under Ultimate Liberty license
    * SLA0044, the "License"; You may not use this file except in compliance with
    * the License. You may obtain a copy of the License at:
    *                      www.st.com/SLA0044
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __USB_CDC_H
  #define __USB_CDC_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include  "usbd_ioreq.h"
  
  /** @addtogroup STM32_USB_DEVICE_LIBRARY
    * @{
    */
  
  /** @defgroup usbd_cdc
    * @brief This file is the Header file for usbd_cdc.c
    * @{
    */
  
  
  /** @defgroup usbd_cdc_Exported_Defines
    * @{
    */
  //#define CDC_IN_EP                                   0x81U  /* EP1 for data IN */
  //#define CDC_OUT_EP                                  0x01U  /* EP1 for data OUT */
  //#define CDC_CMD_EP                                  0x82U  /* EP2 for CDC commands */
  // Modified for composite
  #define CDC_IN_EP                                   0x81U  /* EP1 for data IN */
  #define CDC_OUT_EP                                  0x01U  /* EP1 for data OUT */
  #define CDC_CMD_EP                                  0x83U  /* EP2 for CDC commands */
  
  #ifndef CDC_HS_BINTERVAL
  #define CDC_HS_BINTERVAL                            0x10U
  #endif /* CDC_HS_BINTERVAL */
  
  #ifndef CDC_FS_BINTERVAL
  #define CDC_FS_BINTERVAL                            0x10U
  #endif /* CDC_FS_BINTERVAL */
  
  /* CDC Endpoints parameters: you can fine tune these values depending on the needed baudrates and performance. */
  #define CDC_DATA_HS_MAX_PACKET_SIZE                 512U  /* Endpoint IN & OUT Packet size */
  #define CDC_DATA_FS_MAX_PACKET_SIZE                 64U  /* Endpoint IN & OUT Packet size */
  #define CDC_CMD_PACKET_SIZE                         8U  /* Control Endpoint Packet size */
  
  #define USB_CDC_CONFIG_DESC_SIZ                     67U
  #define CDC_DATA_HS_IN_PACKET_SIZE                  CDC_DATA_HS_MAX_PACKET_SIZE
  #define CDC_DATA_HS_OUT_PACKET_SIZE                 CDC_DATA_HS_MAX_PACKET_SIZE
  
  #define CDC_DATA_FS_IN_PACKET_SIZE                  CDC_DATA_FS_MAX_PACKET_SIZE
  #define CDC_DATA_FS_OUT_PACKET_SIZE                 CDC_DATA_FS_MAX_PACKET_SIZE
  
  #define CDC_REQ_MAX_DATA_SIZE                       0x7U
  /*---------------------------------------------------------------------*/
  /*  CDC definitions                                                    */
  /*---------------------------------------------------------------------*/
  #define CDC_SEND_ENCAPSULATED_COMMAND               0x00U
  #define CDC_GET_ENCAPSULATED_RESPONSE               0x01U
  #define CDC_SET_COMM_FEATURE                        0x02U
  #define CDC_GET_COMM_FEATURE                        0x03U
  #define CDC_CLEAR_COMM_FEATURE                      0x04U
  #define CDC_SET_LINE_CODING                         0x20U
  #define CDC_GET_LINE_CODING                         0x21U
  #define CDC_SET_CONTROL_LINE_STATE                  0x22U
  #define CDC_SEND_BREAK                              0x23U
  
  /**
    * @}
    */
  
  
  /** @defgroup USBD_CORE_Exported_TypesDefinitions
    * @{
    */
  
  /**
    * @}
    */
  typedef struct
  {
    uint32_t bitrate;
    uint8_t  format;
    uint8_t  paritytype;
    uint8_t  datatype;
  } USBD_CDC_LineCodingTypeDef;
  
  typedef struct _USBD_CDC_Itf
  {
    int8_t (* Init)(void);
    int8_t (* DeInit)(void);
    int8_t (* Control)(uint8_t cmd, uint8_t *pbuf, uint16_t length);
    int8_t (* Receive)(uint8_t *Buf, uint32_t *Len);
    int8_t (* TransmitCplt)(uint8_t *Buf, uint32_t *Len, uint8_t epnum);
  } USBD_CDC_ItfTypeDef;
  
  
  typedef struct
  {
    uint32_t data[CDC_DATA_HS_MAX_PACKET_SIZE / 4U];      /* Force 32bits alignment */
    uint8_t  CmdOpCode;
    uint8_t  CmdLength;
    uint8_t  *RxBuffer;
    uint8_t  *TxBuffer;
    uint32_t RxLength;
    uint32_t TxLength;
  
    __IO uint32_t TxState;
    __IO uint32_t RxState;
  } USBD_CDC_HandleTypeDef;
  
  
  
  /** @defgroup USBD_CORE_Exported_Macros
    * @{
    */
  
  /**
    * @}
    */
  
  /** @defgroup USBD_CORE_Exported_Variables
    * @{
    */
  
  extern USBD_ClassTypeDef USBD_CDC;
  #define USBD_CDC_CLASS &USBD_CDC
  /**
    * @}
    */
  
  /** @defgroup USB_CORE_Exported_Functions
    * @{
    */
  uint8_t USBD_CDC_RegisterInterface(USBD_HandleTypeDef *pdev,
                                     USBD_CDC_ItfTypeDef *fops);
  
  uint8_t USBD_CDC_SetTxBuffer(USBD_HandleTypeDef *pdev, uint8_t *pbuff,
                               uint32_t length);
  
  uint8_t USBD_CDC_SetRxBuffer(USBD_HandleTypeDef *pdev, uint8_t *pbuff);
  uint8_t USBD_CDC_ReceivePacket(USBD_HandleTypeDef *pdev);
  uint8_t USBD_CDC_TransmitPacket(USBD_HandleTypeDef *pdev);
  /**
    * @}
    */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif  /* __USB_CDC_H */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  