__usb.h

C语言版的USB单片机固件源代码

//===================================================================//
//     Project Name : ZBoard
//      Module Name : Master Firmware Program
//     Product Type : License
//      OS/Dev Tool : AT89C52, uVision 2
//  Original Author : Ray Yang
//     Organization : YBWork.com
//    Original Date : July, 25, 2001
//             Addr : Room 402, No. 131, Meilong No. 9
//              TEL : [phone]
//            EMail : [e-mail]
//          Website : http://www.ybwork.com
//		  Copyright : Copyright (L) YBWork.com, 2001
//         Comments : 
//                    
//					<< History >> 
//					July, 25, 2001		The first release
//===================================================================//
#ifndef __USB_H__
#define __USB_H__

#include "FLASH.H"

#define MAX_ENDPOINTS      (unsigned char)0x3

#define EP0_TX_FIFO_SIZE   16
#define EP0_RX_FIFO_SIZE   16
#define EP0_PACKET_SIZE    16

#define EP1_TX_FIFO_SIZE   16
#define EP1_RX_FIFO_SIZE   16
#define EP1_PACKET_SIZE    16

#define EP2_TX_FIFO_SIZE   64
#define EP2_RX_FIFO_SIZE   64
#define EP2_PACKET_SIZE    128


#define USB_IDLE           0
#define USB_TRANSMIT       1
#define USB_RECEIVE        2

/**************************************************************************/
/* masks                                                                  */
/**************************************************************************/

#define USB_RECIPIENT            (unsigned char)0x1F
#define USB_RECIPIENT_DEVICE     (unsigned char)0x00
#define USB_RECIPIENT_INTERFACE  (unsigned char)0x01
#define USB_RECIPIENT_ENDPOINT   (unsigned char)0x02

#define USB_REQUEST_TYPE_MASK    (unsigned char)0x60
#define USB_STANDARD_REQUEST     (unsigned char)0x00
#define USB_CLASS_REQUEST        (unsigned char)0x20
#define USB_VENDOR_REQUEST       (unsigned char)0x40

#define USB_REQUEST_MASK         (unsigned char)0x0F

#define DEVICE_ADDRESS_MASK      0x7F

typedef struct _IO_REQUEST {
	unsigned short	uAddressL;
	unsigned char	bAddressH;
	unsigned short	uSize;
	unsigned char	bCommand;
} IO_REQUEST, *PIO_REQUEST;

typedef struct _device_request
{
	unsigned char bmRequestType;
	unsigned char bRequest;
	unsigned short wValue;
	unsigned short wIndex;
	unsigned short wLength;
} DEVICE_REQUEST;

#define MAX_CONTROLDATA_SIZE	8

typedef struct _control_xfer
{
	DEVICE_REQUEST DeviceRequest;
	unsigned short wLength;
	unsigned short wCount;
	unsigned char* pData;
	unsigned char dataBuffer[MAX_CONTROLDATA_SIZE];
} CONTROL_XFER;

void USB_Suspend_Change(void);
void USB_Stall_EP0(void);
void USB_Disconnect(void);
void USB_Connect(void);
void USB_Reconnect(void);
void USB_Init_Unconfig(void);
void USB_Init_Config(void);
void USB_Single_Transmit(unsigned char* pBuf, unsigned char nLen);
void USB_Code_Transmit(unsigned char code* pRomData, unsigned short nLen);
void USB_Control_Handler();
void USB_ClearAllInts(void);

#endif /*__USB_H__*/