/**
  ******************************************************************************
  * @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.
  *
  ******************************************************************************
  */

#ifndef __USB_HID_H
#define __USB_HID_H

#ifdef __cplusplus
 extern "C" {
#endif

#include  "usbd_ioreq.h"


#define HID_EPIN_ADDR                 0x82
#define HID_EPIN_SIZE                 0x40

// Not sequential to allow the MSC to have the 2nd transmit fifo. See
// USBD_LL_Init
#define HID_EPOUT_ADDR                0x02
#define HID_EPOUT_SIZE                0x40


#define USB_HID_DESC_SIZ              9
#define HID_GENERIC_REPORT_DESC_SIZE    37

#define HID_DESCRIPTOR_TYPE           0x21
#define HID_REPORT_DESC               0x22

#define HID_FS_BINTERVAL               0x20 // 32ms
#define HID_HS_BINTERVAL               0x9

#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

typedef enum
{
  HID_IDLE = 0,
  HID_BUSY,
}
HID_StateTypeDef; 


typedef struct
{
	uint32_t             Protocol;
	uint32_t             IdleState;
	uint32_t             AltSetting;
	HID_StateTypeDef     state;
	__ALIGN_BEGIN uint8_t rxBuffer[HID_EPOUT_SIZE] __ALIGN_END;
	__ALIGN_BEGIN uint8_t txBuffer[HID_EPOUT_SIZE] __ALIGN_END;
	int                  reportReady;
}
USBD_HID_HandleTypeDef;


uint8_t USBD_HID_IsBusy(USBD_HandleTypeDef *pdev);


uint8_t USBD_HID_SendReport (
	USBD_HandleTypeDef *pdev,
	const uint8_t *report,
	uint16_t len);


uint8_t USBD_HID_IsReportReady(USBD_HandleTypeDef *pdev);

uint8_t USBD_HID_GetReport(USBD_HandleTypeDef *pdev,
	uint8_t *report,
	uint8_t maxLen);

uint32_t USBD_HID_GetPollingInterval (USBD_HandleTypeDef *pdev);

const uint8_t* USBD_HID_GetReportDesc();
const uint8_t* USBD_HID_GetDesc();

#ifdef __cplusplus
}
#endif

#endif