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#ifndef _LINUX_HDREG_H
#define _LINUX_HDREG_H
/*
* This file contains some defines for the AT-hd-controller.
* Various sources.
*/
#define HD_IRQ 14 /* the standard disk interrupt */
/* ide.c has its own port definitions in "ide.h" */
/* Hd controller regs. Ref: IBM AT Bios-listing */
#define HD_DATA 0x1f0 /* _CTL when writing */
#define HD_ERROR 0x1f1 /* see err-bits */
#define HD_NSECTOR 0x1f2 /* nr of sectors to read/write */
#define HD_SECTOR 0x1f3 /* starting sector */
#define HD_LCYL 0x1f4 /* starting cylinder */
#define HD_HCYL 0x1f5 /* high byte of starting cyl */
#define HD_CURRENT 0x1f6 /* 101dhhhh , d=drive, hhhh=head */
#define HD_STATUS 0x1f7 /* see status-bits */
#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 */
#define HD_CMD 0x3f6 /* used for resets */
#define HD_ALTSTATUS 0x3f6 /* same as HD_STATUS but doesn't clear irq */
/* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
/* 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_WRITE_VERIFY 0x3C
#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_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 */
#define WIN_READ_BUFFER 0xE4 /* force read only 1 sector */
#define WIN_WRITE_BUFFER 0xE8 /* force write only 1 sector */
#define WIN_SMART 0xb0 /* self-monitoring and reporting */
/* 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. */
/* WIN_SMART sub-commands */
#define SMART_READ_VALUES 0xd0
#define SMART_READ_THRESHOLDS 0xd1
#define SMART_AUTOSAVE 0xd2
#define SMART_SAVE 0xd3
#define SMART_IMMEDIATE_OFFLINE 0xd4
#define SMART_ENABLE 0xd8
#define SMART_DISABLE 0xd9
#define SMART_STATUS 0xda
#define SMART_AUTO_OFFLINE 0xdb
/* 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 MCR_ERR 0x08 /* media change request */
#define ID_ERR 0x10 /* ID field not found */
#define ECC_ERR 0x40 /* Uncorrectable ECC error */
#define BBD_ERR 0x80 /* pre-EIDE meaning: block marked bad */
#define ICRC_ERR 0x80 /* new meaning: CRC error during transfer */
struct hd_geometry {
unsigned char heads;
unsigned char sectors;
unsigned short cylinders;
unsigned long start;
};
/* 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_OBSOLETE_IDENTITY 0x0307 /* OBSOLETE, DO NOT USE: returns 142 bytes */
#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_GET_NICE 0x030c /* get nice flags */
#define HDIO_GET_IDENTITY 0x030d /* get IDE identification info */
#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 HDIO_SCAN_HWIF 0x0328 /* register and (re)scan interface */
#define HDIO_SET_NICE 0x0329 /* set nice flags */
/* structure returned by HDIO_GET_IDENTITY, 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 max_multsect; /* 0=not_implemented */
unsigned char vendor3; /* vendor unique */
unsigned short dword_io; /* 0=not_implemented; 1=implemented */
unsigned char vendor4; /* vendor unique */
unsigned char capability; /* bits 0:DMA 1:LBA 2:IORDYsw 3:IORDYsup*/
unsigned short reserved50; /* reserved (word 50) */
unsigned char vendor5; /* vendor unique */
unsigned char tPIO; /* 0=slow, 1=medium, 2=fast */
unsigned char vendor6; /* vendor unique */
unsigned char tDMA; /* 0=slow, 1=medium, 2=fast */
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 int) */
unsigned char multsect; /* current multiple sector count */
unsigned char multsect_valid; /* when (bit0==1) multsect is ok */
unsigned int lba_capacity; /* 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 word69;
unsigned short word70;
/* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
unsigned short word71;
unsigned short word72;
unsigned short word73;
unsigned short word74;
unsigned short word75;
unsigned short word76;
unsigned short word77;
unsigned short word78;
unsigned short word79;
unsigned short word80;
unsigned short word81;
unsigned short word82;
unsigned short word83;
unsigned short word84;
unsigned short word85;
unsigned short word86;
unsigned short word87;
unsigned short dma_ultra;
unsigned short reserved[167];
};
/*
* IDE "nice" flags. These are used on a per drive basis to determine
* when to be nice and give more bandwidth to the other devices which
* share the same IDE bus.
*/
#define IDE_NICE_DSC_OVERLAP (0) /* per the DSC overlap protocol */
#define IDE_NICE_ATAPI_OVERLAP (1) /* not supported yet */
#define IDE_NICE_0 (2) /* when sure that it won't affect us */
#define IDE_NICE_1 (3) /* when probably won't affect us much */
#define IDE_NICE_2 (4) /* when we know it's on our expense */
#ifdef __KERNEL__
/*
* These routines are used for kernel command line parameters from main.c:
*/
#include <linux/config.h>
#ifdef CONFIG_BLK_DEV_HD
void hd_setup(char *, int *);
#endif /* CONFIG_BLK_DEV_HD */
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_IDE_MODULE)
int ide_register(int io_port, int ctl_port, int irq);
void ide_unregister(unsigned int);
#endif /* CONFIG_BLK_DEV_IDE || CONFIG_BLK_DEV_IDE_MODULE */
#endif /* __KERNEL__ */
#endif /* _LINUX_HDREG_H */
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