/**
  ******************************************************************************
  * @file    usb_lib.h
  * @author  MCD Application Team
  * @version V4.0.0
  * @date    28-August-2012
  * @brief   USB library include files
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2012 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_LIB_H
#define __USB_LIB_H

#include "usb_conf.h"
#include "hw_config.h"
#include "usb_regs.h"
#include "usb_core.h"


// Public defines
// Definition of "USBbmRequestType"
#define REQUEST_TYPE      0x60  // Mask to get request type
#define STANDARD_REQUEST  0x00  // Standard request
#define CLASS_REQUEST     0x20  // Class request
#define VENDOR_REQUEST    0x40  // Vendor request
#define RECIPIENT         0x1F  // Mask to get recipient


// Exported types
#ifndef NULL
#define NULL ((void *)0)
#endif

#ifndef BOOL
#define BOOL
typedef enum {
	FALSE = 0,
	TRUE  = !FALSE
} bool;
#endif

typedef enum _RECIPIENT_TYPE {
	DEVICE_RECIPIENT,     // Recipient device
	INTERFACE_RECIPIENT,  // Recipient interface
	ENDPOINT_RECIPIENT,   // Recipient endpoint
	OTHER_RECIPIENT
} RECIPIENT_TYPE;

typedef enum _STANDARD_REQUESTS {
	GET_STATUS        = 0,
	CLEAR_FEATURE,
	RESERVED1,
	SET_FEATURE,
	RESERVED2,
	SET_ADDRESS,
	GET_DESCRIPTOR,
	SET_DESCRIPTOR,
	GET_CONFIGURATION,
	SET_CONFIGURATION,
	GET_INTERFACE,
	SET_INTERFACE,
	TOTAL_sREQUEST,     // Total number of Standard request
	SYNCH_FRAME       = 12
} STANDARD_REQUESTS;

// Definition of "USBwValue"
typedef enum _DESCRIPTOR_TYPE {
	DEVICE_DESCRIPTOR    = 1,
	CONFIG_DESCRIPTOR,
	STRING_DESCRIPTOR,
	INTERFACE_DESCRIPTOR,
	ENDPOINT_DESCRIPTOR
} DESCRIPTOR_TYPE;

// Feature selector of a SET_FEATURE or CLEAR_FEATURE
typedef enum _FEATURE_SELECTOR {
	ENDPOINT_STALL,
	DEVICE_REMOTE_WAKEUP
} FEATURE_SELECTOR;


// Public variables
//  Points to the DEVICE_INFO structure of current device
//  The purpose of this register is to speed up the execution
extern DEVICE_INFO *pInformation;
/*  Points to the DEVICE_PROP structure of current device */
/*  The purpose of this register is to speed up the execution */
extern DEVICE_PROP*	pProperty;
extern void (*pEpInt_IN[ 7])(void);   // Handles IN  interrupts
extern void (*pEpInt_OUT[7])(void);   // Handles OUT interrupts
extern uint8_t	EPindex;               // The number of current endpoint, it will be used to specify an endpoint
//  Temporary save the state of Rx & Tx status.
//  Whenever the Rx or Tx state is changed, its value is saved
//  in this variable first and will be set to the EPRB or EPRA
//  at the end of interrupt process
extern uint16_t SaveState;
extern uint16_t wInterrupt_Mask; // Contains interrupt mask
extern USER_STANDARD_REQUESTS *pUser_Standard_Requests; //


// Function prototypes
void USB_Init(void);
void CTR_LP(void);
void CTR_HP(void);

void UserToPMABufferCopy(uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes);
void PMAToUserBufferCopy(uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes);

uint32_t USB_SIL_Init(void);
uint32_t USB_SIL_Write(uint8_t bEpAddr, uint8_t* pBufferPointer, uint32_t wBufferSize);
uint32_t USB_SIL_Read(uint8_t bEpAddr, uint8_t* pBufferPointer);


#endif // __USB_LIB_H