linux/include/linux/hdreg.h
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   1#ifndef _LINUX_HDREG_H
   2#define _LINUX_HDREG_H
   3
   4#ifdef __KERNEL__
   5#include <linux/ata.h>
   6
   7/*
   8 * This file contains some defines for the AT-hd-controller.
   9 * Various sources.
  10 */
  11
  12/* ide.c has its own port definitions in "ide.h" */
  13
  14#define HD_IRQ          14
  15
  16/* Hd controller regs. Ref: IBM AT Bios-listing */
  17#define HD_DATA         0x1f0           /* _CTL when writing */
  18#define HD_ERROR        0x1f1           /* see err-bits */
  19#define HD_NSECTOR      0x1f2           /* nr of sectors to read/write */
  20#define HD_SECTOR       0x1f3           /* starting sector */
  21#define HD_LCYL         0x1f4           /* starting cylinder */
  22#define HD_HCYL         0x1f5           /* high byte of starting cyl */
  23#define HD_CURRENT      0x1f6           /* 101dhhhh , d=drive, hhhh=head */
  24#define HD_STATUS       0x1f7           /* see status-bits */
  25#define HD_FEATURE      HD_ERROR        /* same io address, read=error, write=feature */
  26#define HD_PRECOMP      HD_FEATURE      /* obsolete use of this port - predates IDE */
  27#define HD_COMMAND      HD_STATUS       /* same io address, read=status, write=cmd */
  28
  29#define HD_CMD          0x3f6           /* used for resets */
  30#define HD_ALTSTATUS    0x3f6           /* same as HD_STATUS but doesn't clear irq */
  31
  32/* remainder is shared between hd.c, ide.c, ide-cd.c, and the hdparm utility */
  33
  34/* Bits of HD_STATUS */
  35#define ERR_STAT                0x01
  36#define INDEX_STAT              0x02
  37#define ECC_STAT                0x04    /* Corrected error */
  38#define DRQ_STAT                0x08
  39#define SEEK_STAT               0x10
  40#define SRV_STAT                0x10
  41#define WRERR_STAT              0x20
  42#define READY_STAT              0x40
  43#define BUSY_STAT               0x80
  44
  45/* Bits for HD_ERROR */
  46#define MARK_ERR                0x01    /* Bad address mark */
  47#define ILI_ERR                 0x01    /* Illegal Length Indication (ATAPI) */
  48#define TRK0_ERR                0x02    /* couldn't find track 0 */
  49#define EOM_ERR                 0x02    /* End Of Media (ATAPI) */
  50#define ABRT_ERR                0x04    /* Command aborted */
  51#define MCR_ERR                 0x08    /* media change request */
  52#define ID_ERR                  0x10    /* ID field not found */
  53#define MC_ERR                  0x20    /* media changed */
  54#define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  55#define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  56#define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  57#define LFS_ERR                 0xf0    /* Last Failed Sense (ATAPI) */
  58
  59/* Bits of HD_NSECTOR */
  60#define CD                      0x01
  61#define IO                      0x02
  62#define REL                     0x04
  63#define TAG_MASK                0xf8
  64#endif /* __KERNEL__ */
  65
  66#include <linux/types.h>
  67
  68/*
  69 * Command Header sizes for IOCTL commands
  70 */
  71
  72#define HDIO_DRIVE_CMD_HDR_SIZE         (4 * sizeof(__u8))
  73#define HDIO_DRIVE_HOB_HDR_SIZE         (8 * sizeof(__u8))
  74#define HDIO_DRIVE_TASK_HDR_SIZE        (8 * sizeof(__u8))
  75
  76#define IDE_DRIVE_TASK_NO_DATA          0
  77#ifndef __KERNEL__
  78#define IDE_DRIVE_TASK_INVALID          -1
  79#define IDE_DRIVE_TASK_SET_XFER         1
  80#define IDE_DRIVE_TASK_IN               2
  81#define IDE_DRIVE_TASK_OUT              3
  82#endif
  83#define IDE_DRIVE_TASK_RAW_WRITE        4
  84
  85/*
  86 * Define standard taskfile in/out register
  87 */
  88#define IDE_TASKFILE_STD_IN_FLAGS       0xFE
  89#define IDE_HOB_STD_IN_FLAGS            0x3C
  90#ifndef __KERNEL__
  91#define IDE_TASKFILE_STD_OUT_FLAGS      0xFE
  92#define IDE_HOB_STD_OUT_FLAGS           0x3C
  93
  94typedef unsigned char task_ioreg_t;
  95typedef unsigned long sata_ioreg_t;
  96#endif
  97
  98typedef union ide_reg_valid_s {
  99        unsigned all                            : 16;
 100        struct {
 101                unsigned data                   : 1;
 102                unsigned error_feature          : 1;
 103                unsigned sector                 : 1;
 104                unsigned nsector                : 1;
 105                unsigned lcyl                   : 1;
 106                unsigned hcyl                   : 1;
 107                unsigned select                 : 1;
 108                unsigned status_command         : 1;
 109
 110                unsigned data_hob               : 1;
 111                unsigned error_feature_hob      : 1;
 112                unsigned sector_hob             : 1;
 113                unsigned nsector_hob            : 1;
 114                unsigned lcyl_hob               : 1;
 115                unsigned hcyl_hob               : 1;
 116                unsigned select_hob             : 1;
 117                unsigned control_hob            : 1;
 118        } b;
 119} ide_reg_valid_t;
 120
 121typedef struct ide_task_request_s {
 122        __u8            io_ports[8];
 123        __u8            hob_ports[8]; /* bytes 6 and 7 are unused */
 124        ide_reg_valid_t out_flags;
 125        ide_reg_valid_t in_flags;
 126        int             data_phase;
 127        int             req_cmd;
 128        unsigned long   out_size;
 129        unsigned long   in_size;
 130} ide_task_request_t;
 131
 132typedef struct ide_ioctl_request_s {
 133        ide_task_request_t      *task_request;
 134        unsigned char           *out_buffer;
 135        unsigned char           *in_buffer;
 136} ide_ioctl_request_t;
 137
 138struct hd_drive_cmd_hdr {
 139        __u8 command;
 140        __u8 sector_number;
 141        __u8 feature;
 142        __u8 sector_count;
 143};
 144
 145#ifndef __KERNEL__
 146typedef struct hd_drive_task_hdr {
 147        __u8 data;
 148        __u8 feature;
 149        __u8 sector_count;
 150        __u8 sector_number;
 151        __u8 low_cylinder;
 152        __u8 high_cylinder;
 153        __u8 device_head;
 154        __u8 command;
 155} task_struct_t;
 156
 157typedef struct hd_drive_hob_hdr {
 158        __u8 data;
 159        __u8 feature;
 160        __u8 sector_count;
 161        __u8 sector_number;
 162        __u8 low_cylinder;
 163        __u8 high_cylinder;
 164        __u8 device_head;
 165        __u8 control;
 166} hob_struct_t;
 167#endif
 168
 169#define TASKFILE_NO_DATA                0x0000
 170
 171#define TASKFILE_IN                     0x0001
 172#define TASKFILE_MULTI_IN               0x0002
 173
 174#define TASKFILE_OUT                    0x0004
 175#define TASKFILE_MULTI_OUT              0x0008
 176#define TASKFILE_IN_OUT                 0x0010
 177
 178#define TASKFILE_IN_DMA                 0x0020
 179#define TASKFILE_OUT_DMA                0x0040
 180#define TASKFILE_IN_DMAQ                0x0080
 181#define TASKFILE_OUT_DMAQ               0x0100
 182
 183#ifndef __KERNEL__
 184#define TASKFILE_P_IN                   0x0200
 185#define TASKFILE_P_OUT                  0x0400
 186#define TASKFILE_P_IN_DMA               0x0800
 187#define TASKFILE_P_OUT_DMA              0x1000
 188#define TASKFILE_P_IN_DMAQ              0x2000
 189#define TASKFILE_P_OUT_DMAQ             0x4000
 190#define TASKFILE_48                     0x8000
 191#define TASKFILE_INVALID                0x7fff
 192#endif
 193
 194/* ATA/ATAPI Commands pre T13 Spec */
 195#define WIN_NOP                         0x00
 196/*
 197 *      0x01->0x02 Reserved
 198 */
 199#define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
 200/*
 201 *      0x04->0x07 Reserved
 202 */
 203#define WIN_SRST                        0x08 /* ATAPI soft reset command */
 204#define WIN_DEVICE_RESET                0x08
 205/*
 206 *      0x09->0x0F Reserved
 207 */
 208#define WIN_RECAL                       0x10
 209#define WIN_RESTORE                     WIN_RECAL
 210/*
 211 *      0x10->0x1F Reserved
 212 */
 213#define WIN_READ                        0x20 /* 28-Bit */
 214#define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
 215#define WIN_READ_LONG                   0x22 /* 28-Bit */
 216#define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
 217#define WIN_READ_EXT                    0x24 /* 48-Bit */
 218#define WIN_READDMA_EXT                 0x25 /* 48-Bit */
 219#define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
 220#define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
 221/*
 222 *      0x28
 223 */
 224#define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
 225/*
 226 *      0x2A->0x2F Reserved
 227 */
 228#define WIN_WRITE                       0x30 /* 28-Bit */
 229#define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
 230#define WIN_WRITE_LONG                  0x32 /* 28-Bit */
 231#define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
 232#define WIN_WRITE_EXT                   0x34 /* 48-Bit */
 233#define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
 234#define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
 235#define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
 236#define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
 237#define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
 238/*
 239 *      0x3A->0x3B Reserved
 240 */
 241#define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
 242/*
 243 *      0x3D->0x3F Reserved
 244 */
 245#define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 246#define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
 247#define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 248/*
 249 *      0x43->0x4F Reserved
 250 */
 251#define WIN_FORMAT                      0x50
 252/*
 253 *      0x51->0x5F Reserved
 254 */
 255#define WIN_INIT                        0x60
 256/*
 257 *      0x61->0x5F Reserved
 258 */
 259#define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
 260
 261#define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 262#define WIN_DIAGNOSE                    0x90
 263#define WIN_SPECIFY                     0x91 /* set drive geometry translation */
 264#define WIN_DOWNLOAD_MICROCODE          0x92
 265#define WIN_STANDBYNOW2                 0x94
 266#define WIN_STANDBY2                    0x96
 267#define WIN_SETIDLE2                    0x97
 268#define WIN_CHECKPOWERMODE2             0x98
 269#define WIN_SLEEPNOW2                   0x99
 270/*
 271 *      0x9A VENDOR
 272 */
 273#define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 274#define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 275#define WIN_QUEUED_SERVICE              0xA2
 276#define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 277#define CFA_ERASE_SECTORS               0xC0
 278#define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 279#define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 280#define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 281#define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
 282#define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 283#define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
 284#define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 285#define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
 286#define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
 287#define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 288#define WIN_GETMEDIASTATUS              0xDA
 289#define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
 290#define WIN_POSTBOOT                    0xDC
 291#define WIN_PREBOOT                     0xDD
 292#define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
 293#define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
 294#define WIN_STANDBYNOW1                 0xE0
 295#define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 296#define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 297#define WIN_SETIDLE1                    0xE3
 298#define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 299#define WIN_CHECKPOWERMODE1             0xE5
 300#define WIN_SLEEPNOW1                   0xE6
 301#define WIN_FLUSH_CACHE                 0xE7
 302#define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 303#define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
 304        /* SET_FEATURES 0x22 or 0xDD */
 305#define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 306#define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 307#define WIN_MEDIAEJECT                  0xED
 308#define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
 309#define WIN_SETFEATURES                 0xEF /* set special drive features */
 310#define EXABYTE_ENABLE_NEST             0xF0
 311#define WIN_SECURITY_SET_PASS           0xF1
 312#define WIN_SECURITY_UNLOCK             0xF2
 313#define WIN_SECURITY_ERASE_PREPARE      0xF3
 314#define WIN_SECURITY_ERASE_UNIT         0xF4
 315#define WIN_SECURITY_FREEZE_LOCK        0xF5
 316#define WIN_SECURITY_DISABLE            0xF6
 317#define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 318#define WIN_SET_MAX                     0xF9
 319#define DISABLE_SEAGATE                 0xFB
 320
 321/* WIN_SMART sub-commands */
 322
 323#define SMART_READ_VALUES               0xD0
 324#define SMART_READ_THRESHOLDS           0xD1
 325#define SMART_AUTOSAVE                  0xD2
 326#define SMART_SAVE                      0xD3
 327#define SMART_IMMEDIATE_OFFLINE         0xD4
 328#define SMART_READ_LOG_SECTOR           0xD5
 329#define SMART_WRITE_LOG_SECTOR          0xD6
 330#define SMART_WRITE_THRESHOLDS          0xD7
 331#define SMART_ENABLE                    0xD8
 332#define SMART_DISABLE                   0xD9
 333#define SMART_STATUS                    0xDA
 334#define SMART_AUTO_OFFLINE              0xDB
 335
 336/* Password used in TF4 & TF5 executing SMART commands */
 337
 338#define SMART_LCYL_PASS                 0x4F
 339#define SMART_HCYL_PASS                 0xC2
 340
 341/* WIN_SETFEATURES sub-commands */
 342#define SETFEATURES_EN_8BIT     0x01    /* Enable 8-Bit Transfers */
 343#define SETFEATURES_EN_WCACHE   0x02    /* Enable write cache */
 344#define SETFEATURES_DIS_DEFECT  0x04    /* Disable Defect Management */
 345#define SETFEATURES_EN_APM      0x05    /* Enable advanced power management */
 346#define SETFEATURES_EN_SAME_R   0x22    /* for a region ATA-1 */
 347#define SETFEATURES_DIS_MSN     0x31    /* Disable Media Status Notification */
 348#define SETFEATURES_DIS_RETRY   0x33    /* Disable Retry */
 349#define SETFEATURES_EN_AAM      0x42    /* Enable Automatic Acoustic Management */
 350#define SETFEATURES_RW_LONG     0x44    /* Set Length of VS bytes */
 351#define SETFEATURES_SET_CACHE   0x54    /* Set Cache segments to SC Reg. Val */
 352#define SETFEATURES_DIS_RLA     0x55    /* Disable read look-ahead feature */
 353#define SETFEATURES_EN_RI       0x5D    /* Enable release interrupt */
 354#define SETFEATURES_EN_SI       0x5E    /* Enable SERVICE interrupt */
 355#define SETFEATURES_DIS_RPOD    0x66    /* Disable reverting to power on defaults */
 356#define SETFEATURES_DIS_ECC     0x77    /* Disable ECC byte count */
 357#define SETFEATURES_DIS_8BIT    0x81    /* Disable 8-Bit Transfers */
 358#define SETFEATURES_DIS_WCACHE  0x82    /* Disable write cache */
 359#define SETFEATURES_EN_DEFECT   0x84    /* Enable Defect Management */
 360#define SETFEATURES_DIS_APM     0x85    /* Disable advanced power management */
 361#define SETFEATURES_EN_ECC      0x88    /* Enable ECC byte count */
 362#define SETFEATURES_EN_MSN      0x95    /* Enable Media Status Notification */
 363#define SETFEATURES_EN_RETRY    0x99    /* Enable Retry */
 364#define SETFEATURES_EN_RLA      0xAA    /* Enable read look-ahead feature */
 365#define SETFEATURES_PREFETCH    0xAB    /* Sets drive prefetch value */
 366#define SETFEATURES_EN_REST     0xAC    /* ATA-1 */
 367#define SETFEATURES_4B_RW_LONG  0xBB    /* Set Length of 4 bytes */
 368#define SETFEATURES_DIS_AAM     0xC2    /* Disable Automatic Acoustic Management */
 369#define SETFEATURES_EN_RPOD     0xCC    /* Enable reverting to power on defaults */
 370#define SETFEATURES_DIS_RI      0xDD    /* Disable release interrupt ATAPI */
 371#define SETFEATURES_EN_SAME_M   0xDD    /* for a entire device ATA-1 */
 372#define SETFEATURES_DIS_SI      0xDE    /* Disable SERVICE interrupt ATAPI */
 373
 374/* WIN_SECURITY sub-commands */
 375
 376#define SECURITY_SET_PASSWORD           0xBA
 377#define SECURITY_UNLOCK                 0xBB
 378#define SECURITY_ERASE_PREPARE          0xBC
 379#define SECURITY_ERASE_UNIT             0xBD
 380#define SECURITY_FREEZE_LOCK            0xBE
 381#define SECURITY_DISABLE_PASSWORD       0xBF
 382
 383struct hd_geometry {
 384      unsigned char heads;
 385      unsigned char sectors;
 386      unsigned short cylinders;
 387      unsigned long start;
 388};
 389
 390/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
 391#define HDIO_GETGEO             0x0301  /* get device geometry */
 392#define HDIO_GET_UNMASKINTR     0x0302  /* get current unmask setting */
 393#define HDIO_GET_MULTCOUNT      0x0304  /* get current IDE blockmode setting */
 394#define HDIO_GET_QDMA           0x0305  /* get use-qdma flag */
 395
 396#define HDIO_SET_XFER           0x0306  /* set transfer rate via proc */
 397
 398#define HDIO_OBSOLETE_IDENTITY  0x0307  /* OBSOLETE, DO NOT USE: returns 142 bytes */
 399#define HDIO_GET_KEEPSETTINGS   0x0308  /* get keep-settings-on-reset flag */
 400#define HDIO_GET_32BIT          0x0309  /* get current io_32bit setting */
 401#define HDIO_GET_NOWERR         0x030a  /* get ignore-write-error flag */
 402#define HDIO_GET_DMA            0x030b  /* get use-dma flag */
 403#define HDIO_GET_NICE           0x030c  /* get nice flags */
 404#define HDIO_GET_IDENTITY       0x030d  /* get IDE identification info */
 405#define HDIO_GET_WCACHE         0x030e  /* get write cache mode on|off */
 406#define HDIO_GET_ACOUSTIC       0x030f  /* get acoustic value */
 407#define HDIO_GET_ADDRESS        0x0310  /* */
 408
 409#define HDIO_GET_BUSSTATE       0x031a  /* get the bus state of the hwif */
 410#define HDIO_TRISTATE_HWIF      0x031b  /* execute a channel tristate */
 411#define HDIO_DRIVE_RESET        0x031c  /* execute a device reset */
 412#define HDIO_DRIVE_TASKFILE     0x031d  /* execute raw taskfile */
 413#define HDIO_DRIVE_TASK         0x031e  /* execute task and special drive command */
 414#define HDIO_DRIVE_CMD          0x031f  /* execute a special drive command */
 415#define HDIO_DRIVE_CMD_AEB      HDIO_DRIVE_TASK
 416
 417/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
 418#define HDIO_SET_MULTCOUNT      0x0321  /* change IDE blockmode */
 419#define HDIO_SET_UNMASKINTR     0x0322  /* permit other irqs during I/O */
 420#define HDIO_SET_KEEPSETTINGS   0x0323  /* keep ioctl settings on reset */
 421#define HDIO_SET_32BIT          0x0324  /* change io_32bit flags */
 422#define HDIO_SET_NOWERR         0x0325  /* change ignore-write-error flag */
 423#define HDIO_SET_DMA            0x0326  /* change use-dma flag */
 424#define HDIO_SET_PIO_MODE       0x0327  /* reconfig interface to new speed */
 425#define HDIO_SCAN_HWIF          0x0328  /* register and (re)scan interface */
 426#define HDIO_SET_NICE           0x0329  /* set nice flags */
 427#define HDIO_UNREGISTER_HWIF    0x032a  /* unregister interface */
 428#define HDIO_SET_WCACHE         0x032b  /* change write cache enable-disable */
 429#define HDIO_SET_ACOUSTIC       0x032c  /* change acoustic behavior */
 430#define HDIO_SET_BUSSTATE       0x032d  /* set the bus state of the hwif */
 431#define HDIO_SET_QDMA           0x032e  /* change use-qdma flag */
 432#define HDIO_SET_ADDRESS        0x032f  /* change lba addressing modes */
 433
 434/* bus states */
 435enum {
 436        BUSSTATE_OFF = 0,
 437        BUSSTATE_ON,
 438        BUSSTATE_TRISTATE
 439};
 440
 441/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
 442/* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
 443/* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
 444/* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
 445/* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
 446
 447#define __NEW_HD_DRIVE_ID
 448
 449/*
 450 * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
 451 *
 452 * If you change something here, please remember to update fix_driveid() in
 453 * ide/probe.c.
 454 */
 455struct hd_driveid {
 456        unsigned short  config;         /* lots of obsolete bit flags */
 457        unsigned short  cyls;           /* Obsolete, "physical" cyls */
 458        unsigned short  reserved2;      /* reserved (word 2) */
 459        unsigned short  heads;          /* Obsolete, "physical" heads */
 460        unsigned short  track_bytes;    /* unformatted bytes per track */
 461        unsigned short  sector_bytes;   /* unformatted bytes per sector */
 462        unsigned short  sectors;        /* Obsolete, "physical" sectors per track */
 463        unsigned short  vendor0;        /* vendor unique */
 464        unsigned short  vendor1;        /* vendor unique */
 465        unsigned short  vendor2;        /* Retired vendor unique */
 466        unsigned char   serial_no[20];  /* 0 = not_specified */
 467        unsigned short  buf_type;       /* Retired */
 468        unsigned short  buf_size;       /* Retired, 512 byte increments
 469                                         * 0 = not_specified
 470                                         */
 471        unsigned short  ecc_bytes;      /* for r/w long cmds; 0 = not_specified */
 472        unsigned char   fw_rev[8];      /* 0 = not_specified */
 473        unsigned char   model[40];      /* 0 = not_specified */
 474        unsigned char   max_multsect;   /* 0=not_implemented */
 475        unsigned char   vendor3;        /* vendor unique */
 476        unsigned short  dword_io;       /* 0=not_implemented; 1=implemented */
 477        unsigned char   vendor4;        /* vendor unique */
 478        unsigned char   capability;     /* (upper byte of word 49)
 479                                         *  3:  IORDYsup
 480                                         *  2:  IORDYsw
 481                                         *  1:  LBA
 482                                         *  0:  DMA
 483                                         */
 484        unsigned short  reserved50;     /* reserved (word 50) */
 485        unsigned char   vendor5;        /* Obsolete, vendor unique */
 486        unsigned char   tPIO;           /* Obsolete, 0=slow, 1=medium, 2=fast */
 487        unsigned char   vendor6;        /* Obsolete, vendor unique */
 488        unsigned char   tDMA;           /* Obsolete, 0=slow, 1=medium, 2=fast */
 489        unsigned short  field_valid;    /* (word 53)
 490                                         *  2:  ultra_ok        word  88
 491                                         *  1:  eide_ok         words 64-70
 492                                         *  0:  cur_ok          words 54-58
 493                                         */
 494        unsigned short  cur_cyls;       /* Obsolete, logical cylinders */
 495        unsigned short  cur_heads;      /* Obsolete, l heads */
 496        unsigned short  cur_sectors;    /* Obsolete, l sectors per track */
 497        unsigned short  cur_capacity0;  /* Obsolete, l total sectors on drive */
 498        unsigned short  cur_capacity1;  /* Obsolete, (2 words, misaligned int)     */
 499        unsigned char   multsect;       /* current multiple sector count */
 500        unsigned char   multsect_valid; /* when (bit0==1) multsect is ok */
 501        unsigned int    lba_capacity;   /* Obsolete, total number of sectors */
 502        unsigned short  dma_1word;      /* Obsolete, single-word dma info */
 503        unsigned short  dma_mword;      /* multiple-word dma info */
 504        unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
 505        unsigned short  eide_dma_min;   /* min mword dma cycle time (ns) */
 506        unsigned short  eide_dma_time;  /* recommended mword dma cycle time (ns) */
 507        unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
 508        unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
 509        unsigned short  words69_70[2];  /* reserved words 69-70
 510                                         * future command overlap and queuing
 511                                         */
 512        /* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
 513        unsigned short  words71_74[4];  /* reserved words 71-74
 514                                         * for IDENTIFY PACKET DEVICE command
 515                                         */
 516        unsigned short  queue_depth;    /* (word 75)
 517                                         * 15:5 reserved
 518                                         *  4:0 Maximum queue depth -1
 519                                         */
 520        unsigned short  words76_79[4];  /* reserved words 76-79 */
 521        unsigned short  major_rev_num;  /* (word 80) */
 522        unsigned short  minor_rev_num;  /* (word 81) */
 523        unsigned short  command_set_1;  /* (word 82) supported
 524                                         * 15:  Obsolete
 525                                         * 14:  NOP command
 526                                         * 13:  READ_BUFFER
 527                                         * 12:  WRITE_BUFFER
 528                                         * 11:  Obsolete
 529                                         * 10:  Host Protected Area
 530                                         *  9:  DEVICE Reset
 531                                         *  8:  SERVICE Interrupt
 532                                         *  7:  Release Interrupt
 533                                         *  6:  look-ahead
 534                                         *  5:  write cache
 535                                         *  4:  PACKET Command
 536                                         *  3:  Power Management Feature Set
 537                                         *  2:  Removable Feature Set
 538                                         *  1:  Security Feature Set
 539                                         *  0:  SMART Feature Set
 540                                         */
 541        unsigned short  command_set_2;  /* (word 83)
 542                                         * 15:  Shall be ZERO
 543                                         * 14:  Shall be ONE
 544                                         * 13:  FLUSH CACHE EXT
 545                                         * 12:  FLUSH CACHE
 546                                         * 11:  Device Configuration Overlay
 547                                         * 10:  48-bit Address Feature Set
 548                                         *  9:  Automatic Acoustic Management
 549                                         *  8:  SET MAX security
 550                                         *  7:  reserved 1407DT PARTIES
 551                                         *  6:  SetF sub-command Power-Up
 552                                         *  5:  Power-Up in Standby Feature Set
 553                                         *  4:  Removable Media Notification
 554                                         *  3:  APM Feature Set
 555                                         *  2:  CFA Feature Set
 556                                         *  1:  READ/WRITE DMA QUEUED
 557                                         *  0:  Download MicroCode
 558                                         */
 559        unsigned short  cfsse;          /* (word 84)
 560                                         * cmd set-feature supported extensions
 561                                         * 15:  Shall be ZERO
 562                                         * 14:  Shall be ONE
 563                                         * 13:6 reserved
 564                                         *  5:  General Purpose Logging
 565                                         *  4:  Streaming Feature Set
 566                                         *  3:  Media Card Pass Through
 567                                         *  2:  Media Serial Number Valid
 568                                         *  1:  SMART selt-test supported
 569                                         *  0:  SMART error logging
 570                                         */
 571        unsigned short  cfs_enable_1;   /* (word 85)
 572                                         * command set-feature enabled
 573                                         * 15:  Obsolete
 574                                         * 14:  NOP command
 575                                         * 13:  READ_BUFFER
 576                                         * 12:  WRITE_BUFFER
 577                                         * 11:  Obsolete
 578                                         * 10:  Host Protected Area
 579                                         *  9:  DEVICE Reset
 580                                         *  8:  SERVICE Interrupt
 581                                         *  7:  Release Interrupt
 582                                         *  6:  look-ahead
 583                                         *  5:  write cache
 584                                         *  4:  PACKET Command
 585                                         *  3:  Power Management Feature Set
 586                                         *  2:  Removable Feature Set
 587                                         *  1:  Security Feature Set
 588                                         *  0:  SMART Feature Set
 589                                         */
 590        unsigned short  cfs_enable_2;   /* (word 86)
 591                                         * command set-feature enabled
 592                                         * 15:  Shall be ZERO
 593                                         * 14:  Shall be ONE
 594                                         * 13:  FLUSH CACHE EXT
 595                                         * 12:  FLUSH CACHE
 596                                         * 11:  Device Configuration Overlay
 597                                         * 10:  48-bit Address Feature Set
 598                                         *  9:  Automatic Acoustic Management
 599                                         *  8:  SET MAX security
 600                                         *  7:  reserved 1407DT PARTIES
 601                                         *  6:  SetF sub-command Power-Up
 602                                         *  5:  Power-Up in Standby Feature Set
 603                                         *  4:  Removable Media Notification
 604                                         *  3:  APM Feature Set
 605                                         *  2:  CFA Feature Set
 606                                         *  1:  READ/WRITE DMA QUEUED
 607                                         *  0:  Download MicroCode
 608                                         */
 609        unsigned short  csf_default;    /* (word 87)
 610                                         * command set-feature default
 611                                         * 15:  Shall be ZERO
 612                                         * 14:  Shall be ONE
 613                                         * 13:6 reserved
 614                                         *  5:  General Purpose Logging enabled
 615                                         *  4:  Valid CONFIGURE STREAM executed
 616                                         *  3:  Media Card Pass Through enabled
 617                                         *  2:  Media Serial Number Valid
 618                                         *  1:  SMART selt-test supported
 619                                         *  0:  SMART error logging
 620                                         */
 621        unsigned short  dma_ultra;      /* (word 88) */
 622        unsigned short  trseuc;         /* time required for security erase */
 623        unsigned short  trsEuc;         /* time required for enhanced erase */
 624        unsigned short  CurAPMvalues;   /* current APM values */
 625        unsigned short  mprc;           /* master password revision code */
 626        unsigned short  hw_config;      /* hardware config (word 93)
 627                                         * 15:  Shall be ZERO
 628                                         * 14:  Shall be ONE
 629                                         * 13:
 630                                         * 12:
 631                                         * 11:
 632                                         * 10:
 633                                         *  9:
 634                                         *  8:
 635                                         *  7:
 636                                         *  6:
 637                                         *  5:
 638                                         *  4:
 639                                         *  3:
 640                                         *  2:
 641                                         *  1:
 642                                         *  0:  Shall be ONE
 643                                         */
 644        unsigned short  acoustic;       /* (word 94)
 645                                         * 15:8 Vendor's recommended value
 646                                         *  7:0 current value
 647                                         */
 648        unsigned short  msrqs;          /* min stream request size */
 649        unsigned short  sxfert;         /* stream transfer time */
 650        unsigned short  sal;            /* stream access latency */
 651        unsigned int    spg;            /* stream performance granularity */
 652        unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
 653        unsigned short  words104_125[22];/* reserved words 104-125 */
 654        unsigned short  last_lun;       /* (word 126) */
 655        unsigned short  word127;        /* (word 127) Feature Set
 656                                         * Removable Media Notification
 657                                         * 15:2 reserved
 658                                         *  1:0 00 = not supported
 659                                         *      01 = supported
 660                                         *      10 = reserved
 661                                         *      11 = reserved
 662                                         */
 663        unsigned short  dlf;            /* (word 128)
 664                                         * device lock function
 665                                         * 15:9 reserved
 666                                         *  8   security level 1:max 0:high
 667                                         *  7:6 reserved
 668                                         *  5   enhanced erase
 669                                         *  4   expire
 670                                         *  3   frozen
 671                                         *  2   locked
 672                                         *  1   en/disabled
 673                                         *  0   capability
 674                                         */
 675        unsigned short  csfo;           /*  (word 129)
 676                                         * current set features options
 677                                         * 15:4 reserved
 678                                         *  3:  auto reassign
 679                                         *  2:  reverting
 680                                         *  1:  read-look-ahead
 681                                         *  0:  write cache
 682                                         */
 683        unsigned short  words130_155[26];/* reserved vendor words 130-155 */
 684        unsigned short  word156;        /* reserved vendor word 156 */
 685        unsigned short  words157_159[3];/* reserved vendor words 157-159 */
 686        unsigned short  cfa_power;      /* (word 160) CFA Power Mode
 687                                         * 15 word 160 supported
 688                                         * 14 reserved
 689                                         * 13
 690                                         * 12
 691                                         * 11:0
 692                                         */
 693        unsigned short  words161_175[15];/* Reserved for CFA */
 694        unsigned short  words176_205[30];/* Current Media Serial Number */
 695        unsigned short  words206_254[49];/* reserved words 206-254 */
 696        unsigned short  integrity_word; /* (word 255)
 697                                         * 15:8 Checksum
 698                                         *  7:0 Signature
 699                                         */
 700};
 701
 702/*
 703 * IDE "nice" flags. These are used on a per drive basis to determine
 704 * when to be nice and give more bandwidth to the other devices which
 705 * share the same IDE bus.
 706 */
 707#define IDE_NICE_DSC_OVERLAP    (0)     /* per the DSC overlap protocol */
 708#define IDE_NICE_ATAPI_OVERLAP  (1)     /* not supported yet */
 709#define IDE_NICE_1              (3)     /* when probably won't affect us much */
 710#ifndef __KERNEL__
 711#define IDE_NICE_0              (2)     /* when sure that it won't affect us */
 712#define IDE_NICE_2              (4)     /* when we know it's on our expense */
 713#endif
 714
 715#endif  /* _LINUX_HDREG_H */
 716
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