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1633 |
jcastillo |
#ifndef _LINUX_HDREG_H
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#define _LINUX_HDREG_H
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/*
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* This file contains some defines for the AT-hd-controller.
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* Various sources.
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*/
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#define HD_IRQ 14 /* the standard disk interrupt */
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/* ide.c has its own port definitions in "ide.h" */
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/* Hd controller regs. Ref: IBM AT Bios-listing */
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#define HD_DATA 0x1f0 /* _CTL when writing */
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#define HD_ERROR 0x1f1 /* see err-bits */
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#define HD_NSECTOR 0x1f2 /* nr of sectors to read/write */
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#define HD_SECTOR 0x1f3 /* starting sector */
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#define HD_LCYL 0x1f4 /* starting cylinder */
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#define HD_HCYL 0x1f5 /* high byte of starting cyl */
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#define HD_CURRENT 0x1f6 /* 101dhhhh , d=drive, hhhh=head */
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#define HD_STATUS 0x1f7 /* see status-bits */
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#define HD_FEATURE HD_ERROR /* same io address, read=error, write=feature */
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#define HD_PRECOMP HD_FEATURE /* obsolete use of this port - predates IDE */
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#define HD_COMMAND HD_STATUS /* same io address, read=status, write=cmd */
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#define HD_CMD 0x3f6 /* used for resets */
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#define HD_ALTSTATUS 0x3f6 /* same as HD_STATUS but doesn't clear irq */
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/* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
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/* Bits of HD_STATUS */
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#define ERR_STAT 0x01
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#define INDEX_STAT 0x02
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#define ECC_STAT 0x04 /* Corrected error */
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#define DRQ_STAT 0x08
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#define SEEK_STAT 0x10
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#define WRERR_STAT 0x20
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#define READY_STAT 0x40
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#define BUSY_STAT 0x80
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/* Values for HD_COMMAND */
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#define WIN_RESTORE 0x10
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#define WIN_READ 0x20
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#define WIN_WRITE 0x30
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#define WIN_VERIFY 0x40
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#define WIN_FORMAT 0x50
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#define WIN_INIT 0x60
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#define WIN_SEEK 0x70
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#define WIN_DIAGNOSE 0x90
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#define WIN_SPECIFY 0x91 /* set drive geometry translation */
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#define WIN_SETIDLE1 0xE3
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#define WIN_SETIDLE2 0x97
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#define WIN_DOORLOCK 0xde /* lock door on removable drives */
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#define WIN_DOORUNLOCK 0xdf /* unlock door on removable drives */
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#define WIN_ACKMC 0xdb /* acknowledge media change */
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#define WIN_MULTREAD 0xC4 /* read sectors using multiple mode */
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#define WIN_MULTWRITE 0xC5 /* write sectors using multiple mode */
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#define WIN_SETMULT 0xC6 /* enable/disable multiple mode */
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#define WIN_IDENTIFY 0xEC /* ask drive to identify itself */
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#define WIN_SETFEATURES 0xEF /* set special drive features */
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#define WIN_READDMA 0xc8 /* read sectors using DMA transfers */
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#define WIN_WRITEDMA 0xca /* write sectors using DMA transfers */
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/* Additional drive command codes used by ATAPI devices. */
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#define WIN_PIDENTIFY 0xA1 /* identify ATAPI device */
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#define WIN_SRST 0x08 /* ATAPI soft reset command */
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#define WIN_PACKETCMD 0xa0 /* Send a packet command. */
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/* Non-standard commands */
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#define EXABYTE_ENABLE_NEST 0xf0
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/* Bits for HD_ERROR */
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#define MARK_ERR 0x01 /* Bad address mark */
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#define TRK0_ERR 0x02 /* couldn't find track 0 */
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#define ABRT_ERR 0x04 /* Command aborted */
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#define ID_ERR 0x10 /* ID field not found */
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#define MC_ERR 0x20 /* media changed */
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#define ECC_ERR 0x40 /* Uncorrectable ECC error */
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#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
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#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
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struct hd_geometry {
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unsigned char heads;
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unsigned char sectors;
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unsigned short cylinders;
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unsigned long start;
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};
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/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
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#define HDIO_GETGEO 0x0301 /* get device geometry */
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#define HDIO_GET_UNMASKINTR 0x0302 /* get current unmask setting */
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#define HDIO_GET_MULTCOUNT 0x0304 /* get current IDE blockmode setting */
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#define HDIO_OBSOLETE_IDENTITY 0x0307 /* OBSOLETE, DO NOT USE: returns 142 bytes */
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#define HDIO_GET_KEEPSETTINGS 0x0308 /* get keep-settings-on-reset flag */
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#define HDIO_GET_32BIT 0x0309 /* get current io_32bit setting */
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#define HDIO_GET_NOWERR 0x030a /* get ignore-write-error flag */
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#define HDIO_GET_DMA 0x030b /* get use-dma flag */
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#define HDIO_GET_IDENTITY 0x030d /* get IDE identification info */
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#define HDIO_DRIVE_CMD 0x031f /* execute a special drive command */
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/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
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#define HDIO_SET_MULTCOUNT 0x0321 /* change IDE blockmode */
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#define HDIO_SET_UNMASKINTR 0x0322 /* permit other irqs during I/O */
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#define HDIO_SET_KEEPSETTINGS 0x0323 /* keep ioctl settings on reset */
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#define HDIO_SET_32BIT 0x0324 /* change io_32bit flags */
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#define HDIO_SET_NOWERR 0x0325 /* change ignore-write-error flag */
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#define HDIO_SET_DMA 0x0326 /* change use-dma flag */
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#define HDIO_SET_PIO_MODE 0x0327 /* reconfig interface to new speed */
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/* structure returned by HDIO_GET_IDENTITY, as per ANSI ATA2 rev.2f spec */
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struct hd_driveid {
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unsigned short config; /* lots of obsolete bit flags */
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unsigned short cyls; /* "physical" cyls */
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unsigned short reserved2; /* reserved (word 2) */
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unsigned short heads; /* "physical" heads */
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unsigned short track_bytes; /* unformatted bytes per track */
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unsigned short sector_bytes; /* unformatted bytes per sector */
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unsigned short sectors; /* "physical" sectors per track */
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unsigned short vendor0; /* vendor unique */
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unsigned short vendor1; /* vendor unique */
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unsigned short vendor2; /* vendor unique */
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unsigned char serial_no[20]; /* 0 = not_specified */
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unsigned short buf_type;
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unsigned short buf_size; /* 512 byte increments; 0 = not_specified */
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unsigned short ecc_bytes; /* for r/w long cmds; 0 = not_specified */
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unsigned char fw_rev[8]; /* 0 = not_specified */
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unsigned char model[40]; /* 0 = not_specified */
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unsigned char max_multsect; /* 0=not_implemented */
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unsigned char vendor3; /* vendor unique */
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unsigned short dword_io; /* 0=not_implemented; 1=implemented */
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unsigned char vendor4; /* vendor unique */
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unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/
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unsigned short reserved50; /* reserved (word 50) */
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unsigned char vendor5; /* vendor unique */
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unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */
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unsigned char vendor6; /* vendor unique */
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unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */
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unsigned short field_valid; /* bits 0:cur_ok 1:eide_ok */
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unsigned short cur_cyls; /* logical cylinders */
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unsigned short cur_heads; /* logical heads */
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unsigned short cur_sectors; /* logical sectors per track */
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unsigned short cur_capacity0; /* logical total sectors on drive */
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unsigned short cur_capacity1; /* (2 words, misaligned int) */
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unsigned char multsect; /* current multiple sector count */
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unsigned char multsect_valid; /* when (bit0==1) multsect is ok */
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unsigned int lba_capacity; /* total number of sectors */
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unsigned short dma_1word; /* single-word dma info */
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unsigned short dma_mword; /* multiple-word dma info */
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unsigned short eide_pio_modes; /* bits 0:mode3 1:mode4 */
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unsigned short eide_dma_min; /* min mword dma cycle time (ns) */
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unsigned short eide_dma_time; /* recommended mword dma cycle time (ns) */
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unsigned short eide_pio; /* min cycle time (ns), no IORDY */
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unsigned short eide_pio_iordy; /* min cycle time (ns), with IORDY */
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unsigned short word69;
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unsigned short word70;
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/* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
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unsigned short word71;
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unsigned short word72;
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unsigned short word73;
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unsigned short word74;
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unsigned short word75;
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unsigned short word76;
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unsigned short word77;
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unsigned short word78;
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unsigned short word79;
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unsigned short word80;
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unsigned short word81;
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unsigned short command_sets; /* bits 0:Smart 1:Security 2:Removable 3:PM */
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unsigned short word83; /* bits 14:Smart Enabled 13:0 zero */
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unsigned short word84;
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unsigned short word85;
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unsigned short word86;
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unsigned short word87;
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unsigned short dma_ultra;
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unsigned short word89; /* reserved (word 89) */
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unsigned short word90; /* reserved (word 90) */
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unsigned short word91; /* reserved (word 91) */
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unsigned short word92; /* reserved (word 92) */
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unsigned short word93; /* reserved (word 93) */
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unsigned short word94; /* reserved (word 94) */
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unsigned short word95; /* reserved (word 95) */
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unsigned short word96; /* reserved (word 96) */
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unsigned short word97; /* reserved (word 97) */
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unsigned short word98; /* reserved (word 98) */
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unsigned short word99; /* reserved (word 99) */
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unsigned short word100; /* reserved (word 100) */
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unsigned short word101; /* reserved (word 101) */
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unsigned short word102; /* reserved (word 102) */
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unsigned short word103; /* reserved (word 103) */
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unsigned short word104; /* reserved (word 104) */
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unsigned short word105; /* reserved (word 105) */
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unsigned short word106; /* reserved (word 106) */
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unsigned short word107; /* reserved (word 107) */
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unsigned short word108; /* reserved (word 108) */
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unsigned short word109; /* reserved (word 109) */
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unsigned short word110; /* reserved (word 110) */
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unsigned short word111; /* reserved (word 111) */
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unsigned short word112; /* reserved (word 112) */
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unsigned short word113; /* reserved (word 113) */
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unsigned short word114; /* reserved (word 114) */
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unsigned short word115; /* reserved (word 115) */
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unsigned short word116; /* reserved (word 116) */
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unsigned short word117; /* reserved (word 117) */
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unsigned short word118; /* reserved (word 118) */
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unsigned short word119; /* reserved (word 119) */
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unsigned short word120; /* reserved (word 120) */
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unsigned short word121; /* reserved (word 121) */
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unsigned short word122; /* reserved (word 122) */
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unsigned short word123; /* reserved (word 123) */
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unsigned short word124; /* reserved (word 124) */
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unsigned short word125; /* reserved (word 125) */
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unsigned short word126; /* reserved (word 126) */
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unsigned short word127; /* reserved (word 127) */
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unsigned short security; /* bits 0:suuport 1:enabled 2:locked 3:frozen */
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unsigned short reserved[127];
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};
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#ifdef __KERNEL__
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/*
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* These routines are used for kernel command line parameters from main.c:
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*/
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#include <linux/config.h>
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#ifdef CONFIG_BLK_DEV_HD
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void hd_setup(char *, int *);
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#endif /* CONFIG_BLK_DEV_HD */
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#ifdef CONFIG_BLK_DEV_IDE
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void ide_setup(char *);
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#ifdef CONFIG_BLK_DEV_IDE_PCMCIA
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int ide_register(int io_port, int ctl_port, int irq);
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void ide_unregister(unsigned int);
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#endif /* CONFIG_BLK_DEV_IDE_PCMCIA */
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#endif /* CONFIG_BLK_DEV_IDE */
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#endif /* __KERNEL__ */
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#endif /* _LINUX_HDREG_H */
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