text: /**
    ******************************************************************************
    * @file    usbd_hid.h
    * @author  MCD Application Team
    * @version V2.4.1
    * @date    19-June-2015
    * @brief   Header file for the usbd_hid_core.c file.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT 2015 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.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __USB_HID_H
  #define __USB_HID_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include  "usbd_ioreq.h"
  
  /** @addtogroup STM32_USB_DEVICE_LIBRARY
    * @{
    */
    
  /** @defgroup USBD_HID
    * @brief This file is the Header file for usbd_hid.c
    * @{
    */ 
  
  
  /** @defgroup USBD_HID_Exported_Defines
    * @{
    */ 
  #define HID_EPIN_ADDR                 0x81
  #define HID_EPIN_SIZE                 0x08
  
  #define USB_HID_CONFIG_DESC_SIZ       34
  #define USB_HID_DESC_SIZ              9
  #define HID_KEYBOARD_REPORT_DESC_SIZE 63
  
  #define HID_DESCRIPTOR_TYPE           0x21
  #define HID_REPORT_DESC               0x22
  
  #define HID_HS_BINTERVAL               0x07
  #define HID_FS_BINTERVAL               0x0A
  #define HID_POLLING_INTERVAL           0x0A
  
  #define HID_REQ_SET_PROTOCOL          0x0B
  #define HID_REQ_GET_PROTOCOL          0x03
  
  #define HID_REQ_SET_IDLE              0x0A
  #define HID_REQ_GET_IDLE              0x02
  
  #define HID_REQ_SET_REPORT            0x09
  #define HID_REQ_GET_REPORT            0x01
  /**
    * @}
    */ 
  
  
  /** @defgroup USBD_CORE_Exported_TypesDefinitions
    * @{
    */
  typedef enum
  {
    HID_IDLE = 0,
    HID_BUSY,
  }
  HID_StateTypeDef; 
  
  
  typedef struct
  {
    uint32_t             Protocol;   
    uint32_t             IdleState;  
    uint32_t             AltSetting;
    HID_StateTypeDef     state;
    uint8_t			   ledState;
  }
  USBD_HID_HandleTypeDef; 
  /**
    * @}
    */ 
  typedef void (*USBD_HID_LedStateCallback)(uint8_t ledState);
  
  
  
  /** @defgroup USBD_CORE_Exported_Macros
    * @{
    */ 
  
  /**
    * @}
    */ 
  
  /** @defgroup USBD_CORE_Exported_Variables
    * @{
    */ 
  
  extern USBD_ClassTypeDef  USBD_HID;
  #define USBD_HID_CLASS    &USBD_HID
  
  /**
    * @}
    */ 
  
  /** @defgroup USB_CORE_Exported_Functions
    * @{
    */ 
  
  void USBD_HID_SetLedStateCallback( USBD_HID_LedStateCallback callback );
  
  uint8_t USBD_HID_SendReport (USBD_HandleTypeDef *pdev, 
                                   uint8_t *report,
                                   uint16_t len);
  
  uint32_t USBD_HID_GetPollingInterval (USBD_HandleTypeDef *pdev);
  
  /**
    * @}
    */ 
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif  /* __USB_HID_H */
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
    
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  