/********************************************************************************
* Copyright (c) 2012, Beijing Tongfang Microelectroics Co., Ltd.
* All rights reserved.
* Module: USB.h
* Author: Yang Song
* Version: V1.0
* History:
*   2012-09-24 Original version
********************************************************************************/

#ifndef __USB_H__
	#define __USB_H__
#include "global.h"
//	Standard Request Codes (bRequest)
#define	GET_STATUS			0
#define	CLEAR_FEATURE		1
#define USBSTDREQRFU1		2
#define	SET_FEATURE			3
#define USBSTDREQRFU2		4
#define	SET_ADDRESS			5
#define	GET_DESCRIPTOR		6
#define	SET_DESCRIPTOR		7
#define	GET_CONFIGURATION	8
#define	SET_CONFIGURATION	9
#define	GET_INTERFACE		10
#define	SET_INTERFACE		11
#define	SYNCH_FRAME			12
//	Descriptor Type
#define	DEVICE				1
#define	CONFIGURATION		2
#define	STRING				3
#define	INTERFACE			4
#define	ENDPOINT			5

//	Define pkt size
#define	EP0PKTSIZE			0x40

//	Define type of status
#define	ACK					0x00
#define	NAK					0x01

#define IN  				0x00
#define OUT 				0x01





//	Enable or disable Dynamic FIFO,related configuration
#define	DYNAMICFIFO	1	


//	Variables and functions defined in USB_ep.c
typedef struct	{
u8	bmRequestType;
u8	bRequest;
u16	wValue;
u16	wIndex;
u16	wLength;
u8	bStdRqstFlag;						//	To indicate standard request is received
u8	bClsRqstFlag;						//	To indicate class request is received
u8	bVdrRqstFlag;						//	To indicate vendor request is received
}USB_DEVICE_REQUEST;

extern u8 *g_abUsbEp0Buf;
extern u16	g_sUsbEp0TxLen;				//	Length of Ep0 data to be transmitted
extern u8 g_bUsbEp0RcvDataFlag;
extern volatile u8	g_bUsbEp0TxIntFlag;
extern u8 g_bUsbEp1RcvDataFlag;
extern u16	g_sUsbEp2TxLen;	
													
extern u8 *g_abUsbEp1Buf;									
extern u8 *g_abUsbEp2Buf;	
extern u8 *g_abUsbEp3Buf;	

//extern volatile u8 USB_Time;

#if	!DYNAMICFIFO
extern u8 *g_abUsbBuf;
#endif


#define USBbuf	g_abUsbEp0Buf

extern u8 g_bCcidReader;
extern USB_DEVICE_REQUEST st_usbDeviceRequest;
extern u8 g_bUsbDevType; 
extern void usbStdReqGetDeviceDescriptor(void);
extern void usbStdReqGetConfigDescriptor(void);
extern void usbStdReqGetStringDescriptor(void);
extern void usbStdReqGetDescriptor(void);
extern void usbStdReqGetStatus(void);
extern void usbStdReqRfu1(void);
extern void usbStdReqClearFeature(void);
extern void usbStdReqRfu2(void);
extern void usbStdReqSetFeature(void);
extern void usbStdReqSetAddress(void);
extern void usbStdReqSetDescriptor(void);
extern void usbStdReqGetConfiguration(void);
extern void usbStdReqSetConfiguration(void);
extern void usbStdReqGetInterface(void);
extern void usbStdReqSetInterface(void);
extern void usbStdReqSynchFrame(void);
extern const voidfunc usbStdReq[0x0D];
extern void usbmain(void);
extern void usbReqHandle(void);
extern void	usbEpInit(void);
extern void USBInit(void);
extern void USBClkInit(void);
extern void usbEp0RxTx(void);
extern void	usbEp0RxAll(u8 * buf,u16 len);
extern void usbEpnTx(u8 ep, u8 * buf,u8 len);
extern void usbEpnTxAll(u8 ep,u8 * buf,u16 len);
extern u8   usbEpnRxFirstPacket(u8 ep,u8 * buf);
extern u16	usbEpnRxLastAllData(u8 ep,u8 * buf,u16 len);
extern void AppUSBSendData(u8* buf, u32 len);
extern u32 AppUSBReceiveData(u8 *buf, u32 bufSize);

#endif //__USB_H__