enr.h

TDI的USB HOST芯片UHC124的编程手册和固件驱动源代码

/*
	ENR.H: enuermation record related defintions and functions

(C) Copyright TransDimension, Inc.  All rights reserved.             
                                                                   
Modification history
====================
03May2000 Original Release
28Mar2001, Modified, JW

*/

/*	ENR data structure */

#include "types.h"

typedef struct {
	U8 dev;				/* device address */
	U8 ep;				/* endpoint number */
	U8 mode;			/* end point mode */
	U16 bsize;			/* end point buffer size */
} ENR;

/*	ENR table size */

#define ENR_SIZE	64

/*	ENR mode - device speed */

#define ENR_SPD		0x04		/* xfer speed bit mask */
#define ENR_LSPD	0x04		/* low speed end point */
#define ENR_FSPD	0x00		/* high speed end point */

/*	ENR mode - xfer type */

#define ENR_XFER	0x03		/* xfer type bit mask */
#define ENR_CTL		0x00		/* control xfer end point */
#define ENR_ISO		0x01		/* isochronous xfer end pont */
#define ENR_BUL		0x02		/* bulk xfer end point */
#define ENR_INT		0x03		/* interrupt xfer end point */

/*	ENR mode - xfer direction */

#define ENR_DIR		0x80		/* xfer direction bit mask */
#define ENR_IN		0x80		/* xfer direction - device to host */
#define ENR_OUT		0x00		/* xfer direction - host to device */

/*	ENR mode - sequence */

#define ENR_SEQ		0x08		/* xfer sequence bit mask */
#define ENR_DATA0	0x00		/* DATA0 packet anticipated */
#define ENR_DATA1	0x08		/* DATA1 packet anticipated */

/*	enumeration record function prototypes */

void UH_EnrInit(void);
ENR *UH_EnrGet(U8 dev, U8 ep, I16 dir);
I16 UH_EnrSet(U8 dev, U8 ep, U8 xfer, I16 dir, U8 spd, U16 bsize);
void UH_EnrDev0(U8 spd);
I16 UH_EnrDelete(U8 dev);
ENR *UH_EnrAccess(U8 mode);
U8 UH_AddrNew(void);