stm32_keyboard/USB_DEVICE/App/usbd_custom_hid_if.c

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : usbd_custom_hid_if.c
  * @version        : v2.0_Cube
  * @brief          : USB Device Custom HID interface file.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */

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

/* USER CODE BEGIN INCLUDE */
#define LED1_REPORT_ID           0x01
#define LED1_REPORT_COUNT        0x01

#define LED2_REPORT_ID           0x02
#define LED2_REPORT_COUNT        0x01

#define LED3_REPORT_ID           0x03
#define LED3_REPORT_COUNT        0x01

#define LED4_REPORT_ID           0x04
#define LED4_REPORT_COUNT        0x01

#define KEY_REPORT_ID            0x05
#define TAMPER_REPORT_ID         0x06
#define ADC_REPORT_ID            0x07
/* USER CODE END INCLUDE */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
uint8_t HID_state;
uint8_t HID_Buffer[64];
/* USER CODE END PV */

/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
  * @brief Usb device.
  * @{
  */

/** @addtogroup USBD_CUSTOM_HID
  * @{
  */

/** @defgroup USBD_CUSTOM_HID_Private_TypesDefinitions USBD_CUSTOM_HID_Private_TypesDefinitions
  * @brief Private types.
  * @{
  */

/* USER CODE BEGIN PRIVATE_TYPES */

/* USER CODE END PRIVATE_TYPES */

/**
  * @}
  */

/** @defgroup USBD_CUSTOM_HID_Private_Defines USBD_CUSTOM_HID_Private_Defines
  * @brief Private defines.
  * @{
  */

/* USER CODE BEGIN PRIVATE_DEFINES */

/* USER CODE END PRIVATE_DEFINES */

/**
  * @}
  */

/** @defgroup USBD_CUSTOM_HID_Private_Macros USBD_CUSTOM_HID_Private_Macros
  * @brief Private macros.
  * @{
  */

/* USER CODE BEGIN PRIVATE_MACRO */

/* USER CODE END PRIVATE_MACRO */

/**
  * @}
  */

/** @defgroup USBD_CUSTOM_HID_Private_Variables USBD_CUSTOM_HID_Private_Variables
  * @brief Private variables.
  * @{
  */

/** Usb HID report descriptor. */
__ALIGN_BEGIN static uint8_t CUSTOM_HID_ReportDesc_FS[USBD_CUSTOM_HID_REPORT_DESC_SIZE] __ALIGN_END =
{
  0x05, 0x01,        // USAGE_PAGE (Generic Desktop)
  0x09, 0x06,        // USAGE (Keyboard)
  0xA1, 0x01,        // COLLECTION (Application)
  0x05, 0x07,        // USAGE_PAGE (Keyboard)
  0x19, 0xE0,        // USAGE_MINIMUM (Keyboard LeftControl)
  0x29, 0xE7,        // USAGE_MAXIMUM (Keyboard Right GUI)
  0x15, 0x00,        // LOGICAL_MINIMUM (0)
  0x25, 0x01,        // LOGICAL_MAXIMUM (1)
  0x75, 0x01,        // REPORT_SIZE (1)
  0x95, 0x08,        // REPORT_COUNT (8)
  0x81, 0x02,        // INPUT (Data,Var,Abs)
  0x95, 0x01,        // REPORT_COUNT (1)
  0x75, 0x08,        // REPORT_SIZE (8)
  0x81, 0x03,        // INPUT (Cnst,Var,Abs)
  0x95, 0x05,        // REPORT_COUNT (5)
  0x75, 0x01,        // REPORT_SIZE (1)
  0x05, 0x08,        // USAGE_PAGE (LEDs)
  0x19, 0x01,        // USAGE_MINIMUM (Num Lock)
  0x29, 0x05,        // USAGE_MAXIMUM (Kana)
  0x91, 0x02,        // OUTPUT (Data,Var,Abs)
  0x95, 0x01,        // REPORT_COUNT (1)
  0x75, 0x03,        // REPORT_SIZE (3)
  0x91, 0x03,        // OUTPUT (Cnst,Var,Abs)
  0x95, 0x06,        // REPORT_COUNT (6)
  0x75, 0x08,        // REPORT_SIZE (8)
  0x15, 0x00,        // LOGICAL_MINIMUM (0)
  0x25, 0x65,        // LOGICAL_MAXIMUM (101)
  0x05, 0x07,        // USAGE_PAGE (Keyboard)
  0x19, 0x00,        // USAGE_MINIMUM (Reserved (no event indicated))
  0x29, 0x65,        // USAGE_MAXIMUM (Keyboard Application)
  0x81, 0x00,        // INPUT (Data,Ary,Abs)
  0xC0               // END_COLLECTION
}; 

/* USER CODE BEGIN PRIVATE_VARIABLES */

/* USER CODE END PRIVATE_VARIABLES */

/**
  * @}
  */

/** @defgroup USBD_CUSTOM_HID_Exported_Variables USBD_CUSTOM_HID_Exported_Variables
  * @brief Public variables.
  * @{
  */
extern USBD_HandleTypeDef hUsbDeviceFS;

/* USER CODE BEGIN EXPORTED_VARIABLES */

/* USER CODE END EXPORTED_VARIABLES */
/**
  * @}
  */

/** @defgroup USBD_CUSTOM_HID_Private_FunctionPrototypes USBD_CUSTOM_HID_Private_FunctionPrototypes
  * @brief Private functions declaration.
  * @{
  */

static int8_t CUSTOM_HID_Init_FS(void);
static int8_t CUSTOM_HID_DeInit_FS(void);
static int8_t CUSTOM_HID_OutEvent_FS(uint8_t event_idx, uint8_t state);

/**
  * @}
  */

USBD_CUSTOM_HID_ItfTypeDef USBD_CustomHID_fops_FS =
{
  CUSTOM_HID_ReportDesc_FS,
  CUSTOM_HID_Init_FS,
  CUSTOM_HID_DeInit_FS,
  CUSTOM_HID_OutEvent_FS
};

/** @defgroup USBD_CUSTOM_HID_Private_Functions USBD_CUSTOM_HID_Private_Functions
  * @brief Private functions.
  * @{
  */

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

/**
  * @brief  Initializes the CUSTOM HID media low layer
  * @retval USBD_OK if all operations are OK else USBD_FAIL
  */
static int8_t CUSTOM_HID_Init_FS(void)
{
  /* USER CODE BEGIN 4 */
  return (USBD_OK);
  /* USER CODE END 4 */
}

/**
  * @brief  DeInitializes the CUSTOM HID media low layer
  * @retval USBD_OK if all operations are OK else USBD_FAIL
  */
static int8_t CUSTOM_HID_DeInit_FS(void)
{
  /* USER CODE BEGIN 5 */
  return (USBD_OK);
  /* USER CODE END 5 */
}

uint32_t size = 0;
uint8_t buff[64];
/**
  * @brief  Manage the CUSTOM HID class events
  * @param  event_idx: Event index
  * @param  state: Event state
  * @retval USBD_OK if all operations are OK else USBD_FAIL
  */
static int8_t CUSTOM_HID_OutEvent_FS(uint8_t event_idx, uint8_t state)
{
  UNUSED(event_idx);
  UNUSED(state);

  size = USBD_LL_GetRxDataSize(&hUsbDeviceFS, CUSTOM_HID_EPOUT_ADDR); // 获取收到的数据长度

  USBD_CUSTOM_HID_HandleTypeDef *hhid = (USBD_CUSTOM_HID_HandleTypeDef *)(hUsbDeviceFS.pClassData);
  for(int i=0; i<size; i++)
  {
	  buff[i]=hhid->Report_buf[i]; // 读取接收到的数据
  }
  
  USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, buff, size);
  
  // 开启下一次接收
//  if (USBD_CUSTOM_HID_ReceivePacket(&hUsbDeviceFS) != (uint8_t)USBD_OK)
//  {
//	  return -1;
//  }

  return (USBD_OK);
  /* USER CODE END 6 */
}

/* USER CODE BEGIN 7 */
/**
  * @brief  Send the report to the Host
  * @param  report: The report to be sent
  * @param  len: The report length
  * @retval USBD_OK if all operations are OK else USBD_FAIL
  */
/*
static int8_t USBD_CUSTOM_HID_SendReport_FS(uint8_t *report, uint16_t len)
{
  return USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, report, len);
}
*/
/* USER CODE END 7 */

/* USER CODE BEGIN PRIVATE_FUNCTIONS_IMPLEMENTATION */

/* USER CODE END PRIVATE_FUNCTIONS_IMPLEMENTATION */
/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */