ata.h

德国Hyperstone公司dsp的CF卡驱动程序

/*
 **************************************************************
 *
 *  hyperstone MS-DOS FAT File System Drivers
 *
 *  IDE Disk related definitions
 *
 *  Christoph Baumhof 2000-03-21
 *  Reinhard K乭ne 2000-03-21
 *  Mihajlo Varga 2000-03-21
 *
 *  Copyright (C) 1997-2000 hyperstone electronics GmbH Konstanz
 *
 *  2000-03-21 initial release
 *
 * $Id$
 *
 * $Log$
 *
 **************************************************************
 *
 * Changes:
 *
 **************************************************************
 */


#ifndef   __ATA_H
#define   __ATA_H


#define HD_DATA		 0
#define HD_ERROR	    1
#define HD_NSECTOR	 2
#define HD_SECTOR	    3
#define HD_LCYL		 4
#define HD_HCYL		 5
#define HD_CURRENT	 6
#define HD_STATUS	    7

#define HD_CMD		    6
#define HD_ALTSTATUS	 6

#define HD_FEATURE   HD_ERROR	   /* same io address, read=error, write=feature */
#define HD_PRECOMP   HD_FEATURE	/* obsolete use of this port - predates IDE */
#define HD_COMMAND   HD_STATUS	/* same io address, read=status, write=cmd */


/* Bits of HD_STATUS */
#define ERR_STAT	0x01
#define INDEX_STAT	0x02
#define ECC_STAT	0x04	/* Corrected error */
#define DRQ_STAT	0x08
#define SEEK_STAT	0x10
#define WRERR_STAT	0x20
#define READY_STAT	0x40
#define BUSY_STAT	0x80

/* Values for HD_COMMAND */
#define WIN_RESTORE		0x10
#define WIN_READ		0x20
#define WIN_WRITE		0x30
#define WIN_VERIFY		0x40
#define WIN_FORMAT		0x50
#define WIN_INIT		0x60
#define WIN_SEEK 		0x70
#define WIN_DIAGNOSE		0x90
#define WIN_SPECIFY		0x91	/* set drive geometry translation */
#define WIN_SETIDLE1		0xE3
#define WIN_SETIDLE2		0x97

#define WIN_DOORLOCK		0xde	/* lock door on removable drives */
#define WIN_DOORUNLOCK		0xdf	/* unlock door on removable drives */
#define WIN_ACKMC		0xdb	/* acknowledge media change */

#define WIN_MULTREAD		0xC4	/* read sectors using multiple mode */
#define WIN_MULTWRITE		0xC5	/* write sectors using multiple mode */
#define WIN_SETMULT		0xC6	/* enable/disable multiple mode */
#define WIN_IDENTIFY		0xEC	/* ask drive to identify itself	*/
#define WIN_SETFEATURES		0xEF	/* set special drive features */
#define WIN_READDMA		0xc8	/* read sectors using DMA transfers */
#define WIN_WRITEDMA		0xca	/* write sectors using DMA transfers */

/* Additional drive command codes used by ATAPI devices. */
#define WIN_PIDENTIFY		0xA1	/* identify ATAPI device	*/
#define WIN_SRST		0x08	/* ATAPI soft reset command */
#define WIN_PACKETCMD		0xa0	/* Send a packet command. */

/* Non-standard commands */
#define EXABYTE_ENABLE_NEST	0xf0

/* Bits for HD_ERROR */
#define MARK_ERR	0x01	/* Bad address mark */
#define TRK0_ERR	0x02	/* couldn't find track 0 */
#define ABRT_ERR	0x04	/* Command aborted */
#define ID_ERR		0x10	/* ID field not found */
#define MC_ERR		0x20	/* media changed */
#define ECC_ERR		0x40	/* Uncorrectable ECC error */
#define	BBD_ERR		0x80	/* block marked bad */


/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
#define HDIO_GETGEO		0x0301	/* get device geometry */
#define HDIO_GET_UNMASKINTR	0x0302	/* get current unmask setting */
#define HDIO_GET_MULTCOUNT	0x0304	/* get current IDE blockmode setting */
#define HDIO_GET_IDENTITY 	0x0307	/* get IDE identification info */
#define HDIO_GET_KEEPSETTINGS 	0x0308	/* get keep-settings-on-reset flag */
#define HDIO_GET_32BIT 		0x0309	/* get current io_32bit setting */
#define HDIO_GET_NOWERR		0x030a	/* get ignore-write-error flag */
#define HDIO_GET_DMA		0x030b	/* get use-dma flag */
#define HDIO_DRIVE_CMD		0x031f	/* execute a special drive command */

/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
#define HDIO_SET_MULTCOUNT	0x0321	/* change IDE blockmode */
#define HDIO_SET_UNMASKINTR	0x0322	/* permit other irqs during I/O */
#define HDIO_SET_KEEPSETTINGS	0x0323	/* keep ioctl settings on reset */
#define HDIO_SET_32BIT		0x0324	/* change io_32bit flags */
#define HDIO_SET_NOWERR		0x0325	/* change ignore-write-error flag */
#define HDIO_SET_DMA		0x0326	/* change use-dma flag */
#define HDIO_SET_PIO_MODE	0x0327	/* reconfig interface to new speed */


#define  SECTOR_SHORTS   (512 >> 1)
#define  SECTOR_SIZE     (512)
#define LBA_capability   (1 << 1)



/* structure returned by WIN_IDENTIFY, as per ANSI ATA2 rev.2f spec */
struct hd_driveid {
	unsigned short	config;		/* lots of obsolete bit flags */
	unsigned short	cyls;		/* "physical" cyls */

	unsigned short	reserved2;	/* reserved (word 2) */
	unsigned short	heads;		/* "physical" heads */

	unsigned short	track_bytes;	/* unformatted bytes per track */
	unsigned short	sector_bytes;	/* unformatted bytes per sector */

	unsigned short	sectors;	/* "physical" sectors per track */
	unsigned short	vendor0;	/* vendor unique */

	unsigned short	vendor1;	/* vendor unique */
	unsigned short	vendor2;	/* vendor unique */

	unsigned char	serial_no[20];	/* 0 = not_specified */

	unsigned short	buf_type;
	unsigned short	buf_size;	/* 512 byte increments; 0 = not_specified */

	unsigned short	ecc_bytes;	/* for r/w long cmds; 0 = not_specified */
	unsigned char	fw_rev[8];	/* 0 = not_specified */
	unsigned char	model[40];	/* 0 = not_specified */

	unsigned char	vendor3;	/* vendor unique */
	unsigned char	max_multsect;	/* 0=not_implemented */

	unsigned short	dword_io;	/* 0=not_implemented; 1=implemented */

	unsigned char	capability;	/* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/
	unsigned char	vendor4;	/* vendor unique */

	unsigned short	reserved50;	/* reserved (word 50) */

	unsigned char	tPIO;		/* 0=slow, 1=medium, 2=fast */
	unsigned char	vendor5;	/* vendor unique */

	unsigned char	tDMA;		/* 0=slow, 1=medium, 2=fast */
	unsigned char	vendor6;	/* vendor unique */

	unsigned short	field_valid;	/* bits 0:cur_ok 1:eide_ok */

	unsigned short	cur_cyls;	/* logical cylinders */
	unsigned short	cur_heads;	/* logical heads */

	unsigned short	cur_sectors;	/* logical sectors per track */
	unsigned short	cur_capacity0;	/* logical total sectors on drive */

	unsigned short	cur_capacity1;	/*  (2 words, misaligned for E1-32 int) */

	unsigned char	multsect_valid;	/* when (bit0==1) multsect is ok */
	unsigned char	multsect;	/* current multiple sector count */

	unsigned int	lba_capacity;	/* 60-61 total number of sectors */

	unsigned short	dma_1word;	/* single-word dma info */
	unsigned short	dma_mword;	/* multiple-word dma info */

	unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
	unsigned short  eide_dma_min;	/* min mword dma cycle time (ns) */

	unsigned short  eide_dma_time;	/* recommended mword dma cycle time (ns) */
	unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */

	unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
	unsigned short  reserved69;	/* reserved (word 69) */
	unsigned short  reserved70;	/* reserved (word 70) */
/*   unsigned short  xy[256 - 71]; */
#if 0
	unsigned short reservedxx[57];	/* reserved (words 71-127) */
	unsigned short vendor7  [32];	   /* vendor unique (words 128-159) */
	unsigned short reservedyy[96];	/* reserved (words 160-255) */
#endif
};

#endif