?? ata.h
字號:
/*
**************************************************************
*
* 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
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