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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 TRK0_ERR                0x02    /* couldn't find track 0 */
  48 #define ABRT_ERR                0x04    /* Command aborted */
  49 #define MCR_ERR                 0x08    /* media change request */
  50 #define ID_ERR                  0x10    /* ID field not found */
  51 #define MC_ERR                  0x20    /* media changed */
  52 #define ECC_ERR                 0x40    /* Uncorrectable ECC error */
  53 #define BBD_ERR                 0x80    /* pre-EIDE meaning:  block marked bad */
  54 #define ICRC_ERR                0x80    /* new meaning:  CRC error during transfer */
  55
  56 /* Bits of HD_NSECTOR */
  57 #define CD                      0x01
  58 #define IO                      0x02
  59 #define REL                     0x04
  60 #define TAG_MASK                0xf8
  61 #endif /* __KERNEL__ */
  62
  63 /*
  64  * Command Header sizes for IOCTL commands
  65  */
  66
  67 #define HDIO_DRIVE_CMD_HDR_SIZE         (4 * sizeof(u8))
  68 #define HDIO_DRIVE_HOB_HDR_SIZE         (8 * sizeof(u8))
  69 #define HDIO_DRIVE_TASK_HDR_SIZE        (8 * sizeof(u8))
  70
  71 #define IDE_DRIVE_TASK_INVALID          -1
  72 #define IDE_DRIVE_TASK_NO_DATA          0
  73 #define IDE_DRIVE_TASK_SET_XFER         1
  74
  75 #define IDE_DRIVE_TASK_IN               2
  76
  77 #define IDE_DRIVE_TASK_OUT              3
  78 #define IDE_DRIVE_TASK_RAW_WRITE        4
  79
  80 /*
  81  * Define standard taskfile in/out register
  82  */
  83 #define IDE_TASKFILE_STD_OUT_FLAGS      0xFE
  84 #define IDE_TASKFILE_STD_IN_FLAGS       0xFE
  85 #define IDE_HOB_STD_OUT_FLAGS           0x3C
  86 #define IDE_HOB_STD_IN_FLAGS            0x3C
  87
  88 typedef unsigned char task_ioreg_t;
  89 typedef unsigned long sata_ioreg_t;
  90
  91 typedef union ide_reg_valid_s {
  92         unsigned all                            : 16;
  93         struct {
  94                 unsigned data                   : 1;
  95                 unsigned error_feature          : 1;
  96                 unsigned sector                 : 1;
  97                 unsigned nsector                : 1;
  98                 unsigned lcyl                   : 1;
  99                 unsigned hcyl                   : 1;
 100                 unsigned select                 : 1;
 101                 unsigned status_command         : 1;
 102
 103                 unsigned data_hob               : 1;
 104                 unsigned error_feature_hob      : 1;
 105                 unsigned sector_hob             : 1;
 106                 unsigned nsector_hob            : 1;
 107                 unsigned lcyl_hob               : 1;
 108                 unsigned hcyl_hob               : 1;
 109                 unsigned select_hob             : 1;
 110                 unsigned control_hob            : 1;
 111         } b;
 112 } ide_reg_valid_t;
 113
 114 typedef struct ide_task_request_s {
 115         task_ioreg_t    io_ports[8];
 116         task_ioreg_t    hob_ports[8];
 117         ide_reg_valid_t out_flags;
 118         ide_reg_valid_t in_flags;
 119         int             data_phase;
 120         int             req_cmd;
 121         unsigned long   out_size;
 122         unsigned long   in_size;
 123 } ide_task_request_t;
 124
 125 typedef struct ide_ioctl_request_s {
 126         ide_task_request_t      *task_request;
 127         unsigned char           *out_buffer;
 128         unsigned char           *in_buffer;
 129 } ide_ioctl_request_t;
 130
 131 struct hd_drive_cmd_hdr {
 132         task_ioreg_t command;
 133         task_ioreg_t sector_number;
 134         task_ioreg_t feature;
 135         task_ioreg_t sector_count;
 136 };
 137
 138 typedef struct hd_drive_task_hdr {
 139         task_ioreg_t data;
 140         task_ioreg_t feature;
 141         task_ioreg_t sector_count;
 142         task_ioreg_t sector_number;
 143         task_ioreg_t low_cylinder;
 144         task_ioreg_t high_cylinder;
 145         task_ioreg_t device_head;
 146         task_ioreg_t command;
 147 } task_struct_t;
 148
 149 typedef struct hd_drive_hob_hdr {
 150         task_ioreg_t data;
 151         task_ioreg_t feature;
 152         task_ioreg_t sector_count;
 153         task_ioreg_t sector_number;
 154         task_ioreg_t low_cylinder;
 155         task_ioreg_t high_cylinder;
 156         task_ioreg_t device_head;
 157         task_ioreg_t control;
 158 } hob_struct_t;
 159
 160 #define TASKFILE_INVALID                0x7fff
 161 #define TASKFILE_48                     0x8000
 162
 163 #define TASKFILE_NO_DATA                0x0000
 164
 165 #define TASKFILE_IN                     0x0001
 166 #define TASKFILE_MULTI_IN               0x0002
 167
 168 #define TASKFILE_OUT                    0x0004
 169 #define TASKFILE_MULTI_OUT              0x0008
 170 #define TASKFILE_IN_OUT                 0x0010
 171
 172 #define TASKFILE_IN_DMA                 0x0020
 173 #define TASKFILE_OUT_DMA                0x0040
 174 #define TASKFILE_IN_DMAQ                0x0080
 175 #define TASKFILE_OUT_DMAQ               0x0100
 176
 177 #define TASKFILE_P_IN                   0x0200
 178 #define TASKFILE_P_OUT                  0x0400
 179 #define TASKFILE_P_IN_DMA               0x0800
 180 #define TASKFILE_P_OUT_DMA              0x1000
 181 #define TASKFILE_P_IN_DMAQ              0x2000
 182 #define TASKFILE_P_OUT_DMAQ             0x4000
 183
 184 /* ATA/ATAPI Commands pre T13 Spec */
 185 #define WIN_NOP                         0x00
 186 /*
 187  *      0x01->0x02 Reserved
 188  */
 189 #define CFA_REQ_EXT_ERROR_CODE          0x03 /* CFA Request Extended Error Code */
 190 /*
 191  *      0x04->0x07 Reserved
 192  */
 193 #define WIN_SRST                        0x08 /* ATAPI soft reset command */
 194 #define WIN_DEVICE_RESET                0x08
 195 /*
 196  *      0x09->0x0F Reserved
 197  */
 198 #define WIN_RECAL                       0x10
 199 #define WIN_RESTORE                     WIN_RECAL
 200 /*
 201  *      0x10->0x1F Reserved
 202  */
 203 #define WIN_READ                        0x20 /* 28-Bit */
 204 #define WIN_READ_ONCE                   0x21 /* 28-Bit without retries */
 205 #define WIN_READ_LONG                   0x22 /* 28-Bit */
 206 #define WIN_READ_LONG_ONCE              0x23 /* 28-Bit without retries */
 207 #define WIN_READ_EXT                    0x24 /* 48-Bit */
 208 #define WIN_READDMA_EXT                 0x25 /* 48-Bit */
 209 #define WIN_READDMA_QUEUED_EXT          0x26 /* 48-Bit */
 210 #define WIN_READ_NATIVE_MAX_EXT         0x27 /* 48-Bit */
 211 /*
 212  *      0x28
 213  */
 214 #define WIN_MULTREAD_EXT                0x29 /* 48-Bit */
 215 /*
 216  *      0x2A->0x2F Reserved
 217  */
 218 #define WIN_WRITE                       0x30 /* 28-Bit */
 219 #define WIN_WRITE_ONCE                  0x31 /* 28-Bit without retries */
 220 #define WIN_WRITE_LONG                  0x32 /* 28-Bit */
 221 #define WIN_WRITE_LONG_ONCE             0x33 /* 28-Bit without retries */
 222 #define WIN_WRITE_EXT                   0x34 /* 48-Bit */
 223 #define WIN_WRITEDMA_EXT                0x35 /* 48-Bit */
 224 #define WIN_WRITEDMA_QUEUED_EXT         0x36 /* 48-Bit */
 225 #define WIN_SET_MAX_EXT                 0x37 /* 48-Bit */
 226 #define CFA_WRITE_SECT_WO_ERASE         0x38 /* CFA Write Sectors without erase */
 227 #define WIN_MULTWRITE_EXT               0x39 /* 48-Bit */
 228 /*
 229  *      0x3A->0x3B Reserved
 230  */
 231 #define WIN_WRITE_VERIFY                0x3C /* 28-Bit */
 232 /*
 233  *      0x3D->0x3F Reserved
 234  */
 235 #define WIN_VERIFY                      0x40 /* 28-Bit - Read Verify Sectors */
 236 #define WIN_VERIFY_ONCE                 0x41 /* 28-Bit - without retries */
 237 #define WIN_VERIFY_EXT                  0x42 /* 48-Bit */
 238 /*
 239  *      0x43->0x4F Reserved
 240  */
 241 #define WIN_FORMAT                      0x50
 242 /*
 243  *      0x51->0x5F Reserved
 244  */
 245 #define WIN_INIT                        0x60
 246 /*
 247  *      0x61->0x5F Reserved
 248  */
 249 #define WIN_SEEK                        0x70 /* 0x70-0x7F Reserved */
 250
 251 #define CFA_TRANSLATE_SECTOR            0x87 /* CFA Translate Sector */
 252 #define WIN_DIAGNOSE                    0x90
 253 #define WIN_SPECIFY                     0x91 /* set drive geometry translation */
 254 #define WIN_DOWNLOAD_MICROCODE          0x92
 255 #define WIN_STANDBYNOW2                 0x94
 256 #define WIN_STANDBY2                    0x96
 257 #define WIN_SETIDLE2                    0x97
 258 #define WIN_CHECKPOWERMODE2             0x98
 259 #define WIN_SLEEPNOW2                   0x99
 260 /*
 261  *      0x9A VENDOR
 262  */
 263 #define WIN_PACKETCMD                   0xA0 /* Send a packet command. */
 264 #define WIN_PIDENTIFY                   0xA1 /* identify ATAPI device   */
 265 #define WIN_QUEUED_SERVICE              0xA2
 266 #define WIN_SMART                       0xB0 /* self-monitoring and reporting */
 267 #define CFA_ERASE_SECTORS               0xC0
 268 #define WIN_MULTREAD                    0xC4 /* read sectors using multiple mode*/
 269 #define WIN_MULTWRITE                   0xC5 /* write sectors using multiple mode */
 270 #define WIN_SETMULT                     0xC6 /* enable/disable multiple mode */
 271 #define WIN_READDMA_QUEUED              0xC7 /* read sectors using Queued DMA transfers */
 272 #define WIN_READDMA                     0xC8 /* read sectors using DMA transfers */
 273 #define WIN_READDMA_ONCE                0xC9 /* 28-Bit - without retries */
 274 #define WIN_WRITEDMA                    0xCA /* write sectors using DMA transfers */
 275 #define WIN_WRITEDMA_ONCE               0xCB /* 28-Bit - without retries */
 276 #define WIN_WRITEDMA_QUEUED             0xCC /* write sectors using Queued DMA transfers */
 277 #define CFA_WRITE_MULTI_WO_ERASE        0xCD /* CFA Write multiple without erase */
 278 #define WIN_GETMEDIASTATUS              0xDA
 279 #define WIN_ACKMEDIACHANGE              0xDB /* ATA-1, ATA-2 vendor */
 280 #define WIN_POSTBOOT                    0xDC
 281 #define WIN_PREBOOT                     0xDD
 282 #define WIN_DOORLOCK                    0xDE /* lock door on removable drives */
 283 #define WIN_DOORUNLOCK                  0xDF /* unlock door on removable drives */
 284 #define WIN_STANDBYNOW1                 0xE0
 285 #define WIN_IDLEIMMEDIATE               0xE1 /* force drive to become "ready" */
 286 #define WIN_STANDBY                     0xE2 /* Set device in Standby Mode */
 287 #define WIN_SETIDLE1                    0xE3
 288 #define WIN_READ_BUFFER                 0xE4 /* force read only 1 sector */
 289 #define WIN_CHECKPOWERMODE1             0xE5
 290 #define WIN_SLEEPNOW1                   0xE6
 291 #define WIN_FLUSH_CACHE                 0xE7
 292 #define WIN_WRITE_BUFFER                0xE8 /* force write only 1 sector */
 293 #define WIN_WRITE_SAME                  0xE9 /* read ata-2 to use */
 294         /* SET_FEATURES 0x22 or 0xDD */
 295 #define WIN_FLUSH_CACHE_EXT             0xEA /* 48-Bit */
 296 #define WIN_IDENTIFY                    0xEC /* ask drive to identify itself    */
 297 #define WIN_MEDIAEJECT                  0xED
 298 #define WIN_IDENTIFY_DMA                0xEE /* same as WIN_IDENTIFY, but DMA */
 299 #define WIN_SETFEATURES                 0xEF /* set special drive features */
 300 #define EXABYTE_ENABLE_NEST             0xF0
 301 #define WIN_SECURITY_SET_PASS           0xF1
 302 #define WIN_SECURITY_UNLOCK             0xF2
 303 #define WIN_SECURITY_ERASE_PREPARE      0xF3
 304 #define WIN_SECURITY_ERASE_UNIT         0xF4
 305 #define WIN_SECURITY_FREEZE_LOCK        0xF5
 306 #define WIN_SECURITY_DISABLE            0xF6
 307 #define WIN_READ_NATIVE_MAX             0xF8 /* return the native maximum address */
 308 #define WIN_SET_MAX                     0xF9
 309 #define DISABLE_SEAGATE                 0xFB
 310
 311 /* WIN_SMART sub-commands */
 312
 313 #define SMART_READ_VALUES               0xD0
 314 #define SMART_READ_THRESHOLDS           0xD1
 315 #define SMART_AUTOSAVE                  0xD2
 316 #define SMART_SAVE                      0xD3
 317 #define SMART_IMMEDIATE_OFFLINE         0xD4
 318 #define SMART_READ_LOG_SECTOR           0xD5
 319 #define SMART_WRITE_LOG_SECTOR          0xD6
 320 #define SMART_WRITE_THRESHOLDS          0xD7
 321 #define SMART_ENABLE                    0xD8
 322 #define SMART_DISABLE                   0xD9
 323 #define SMART_STATUS                    0xDA
 324 #define SMART_AUTO_OFFLINE              0xDB
 325
 326 /* Password used in TF4 & TF5 executing SMART commands */
 327
 328 #define SMART_LCYL_PASS                 0x4F
 329 #define SMART_HCYL_PASS                 0xC2
 330
 331 /* WIN_SETFEATURES sub-commands */
 332 #define SETFEATURES_EN_8BIT     0x01    /* Enable 8-Bit Transfers */
 333 #define SETFEATURES_EN_WCACHE   0x02    /* Enable write cache */
 334 #define SETFEATURES_DIS_DEFECT  0x04    /* Disable Defect Management */
 335 #define SETFEATURES_EN_APM      0x05    /* Enable advanced power management */
 336 #define SETFEATURES_EN_SAME_R   0x22    /* for a region ATA-1 */
 337 #define SETFEATURES_DIS_MSN     0x31    /* Disable Media Status Notification */
 338 #define SETFEATURES_DIS_RETRY   0x33    /* Disable Retry */
 339 #define SETFEATURES_EN_AAM      0x42    /* Enable Automatic Acoustic Management */
 340 #define SETFEATURES_RW_LONG     0x44    /* Set Length of VS bytes */
 341 #define SETFEATURES_SET_CACHE   0x54    /* Set Cache segments to SC Reg. Val */
 342 #define SETFEATURES_DIS_RLA     0x55    /* Disable read look-ahead feature */
 343 #define SETFEATURES_EN_RI       0x5D    /* Enable release interrupt */
 344 #define SETFEATURES_EN_SI       0x5E    /* Enable SERVICE interrupt */
 345 #define SETFEATURES_DIS_RPOD    0x66    /* Disable reverting to power on defaults */
 346 #define SETFEATURES_DIS_ECC     0x77    /* Disable ECC byte count */
 347 #define SETFEATURES_DIS_8BIT    0x81    /* Disable 8-Bit Transfers */
 348 #define SETFEATURES_DIS_WCACHE  0x82    /* Disable write cache */
 349 #define SETFEATURES_EN_DEFECT   0x84    /* Enable Defect Management */
 350 #define SETFEATURES_DIS_APM     0x85    /* Disable advanced power management */
 351 #define SETFEATURES_EN_ECC      0x88    /* Enable ECC byte count */
 352 #define SETFEATURES_EN_MSN      0x95    /* Enable Media Status Notification */
 353 #define SETFEATURES_EN_RETRY    0x99    /* Enable Retry */
 354 #define SETFEATURES_EN_RLA      0xAA    /* Enable read look-ahead feature */
 355 #define SETFEATURES_PREFETCH    0xAB    /* Sets drive prefetch value */
 356 #define SETFEATURES_EN_REST     0xAC    /* ATA-1 */
 357 #define SETFEATURES_4B_RW_LONG  0xBB    /* Set Lenght of 4 bytes */
 358 #define SETFEATURES_DIS_AAM     0xC2    /* Disable Automatic Acoustic Management */
 359 #define SETFEATURES_EN_RPOD     0xCC    /* Enable reverting to power on defaults */
 360 #define SETFEATURES_DIS_RI      0xDD    /* Disable release interrupt ATAPI */
 361 #define SETFEATURES_EN_SAME_M   0xDD    /* for a entire device ATA-1 */
 362 #define SETFEATURES_DIS_SI      0xDE    /* Disable SERVICE interrupt ATAPI */
 363
 364 /* WIN_SECURITY sub-commands */
 365
 366 #define SECURITY_SET_PASSWORD           0xBA
 367 #define SECURITY_UNLOCK                 0xBB
 368 #define SECURITY_ERASE_PREPARE          0xBC
 369 #define SECURITY_ERASE_UNIT             0xBD
 370 #define SECURITY_FREEZE_LOCK            0xBE
 371 #define SECURITY_DISABLE_PASSWORD       0xBF
 372
 373 struct hd_geometry {
 374       unsigned char heads;
 375       unsigned char sectors;
 376       unsigned short cylinders;
 377       unsigned long start;
 378 };
 379
 380 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
 381 #define HDIO_GETGEO             0x0301  /* get device geometry */
 382 #define HDIO_GET_UNMASKINTR     0x0302  /* get current unmask setting */
 383 #define HDIO_GET_MULTCOUNT      0x0304  /* get current IDE blockmode setting */
 384 #define HDIO_GET_QDMA           0x0305  /* get use-qdma flag */
 385
 386 #define HDIO_SET_XFER           0x0306  /* set transfer rate via proc */
 387
 388 #define HDIO_OBSOLETE_IDENTITY  0x0307  /* OBSOLETE, DO NOT USE: returns 142 bytes */
 389 #define HDIO_GET_KEEPSETTINGS   0x0308  /* get keep-settings-on-reset flag */
 390 #define HDIO_GET_32BIT          0x0309  /* get current io_32bit setting */
 391 #define HDIO_GET_NOWERR         0x030a  /* get ignore-write-error flag */
 392 #define HDIO_GET_DMA            0x030b  /* get use-dma flag */
 393 #define HDIO_GET_NICE           0x030c  /* get nice flags */
 394 #define HDIO_GET_IDENTITY       0x030d  /* get IDE identification info */
 395 #define HDIO_GET_WCACHE         0x030e  /* get write cache mode on|off */
 396 #define HDIO_GET_ACOUSTIC       0x030f  /* get acoustic value */
 397 #define HDIO_GET_ADDRESS        0x0310  /* */
 398
 399 #define HDIO_GET_BUSSTATE       0x031a  /* get the bus state of the hwif */
 400 #define HDIO_TRISTATE_HWIF      0x031b  /* execute a channel tristate */
 401 #define HDIO_DRIVE_RESET        0x031c  /* execute a device reset */
 402 #define HDIO_DRIVE_TASKFILE     0x031d  /* execute raw taskfile */
 403 #define HDIO_DRIVE_TASK         0x031e  /* execute task and special drive command */
 404 #define HDIO_DRIVE_CMD          0x031f  /* execute a special drive command */
 405 #define HDIO_DRIVE_CMD_AEB      HDIO_DRIVE_TASK
 406
 407 /* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
 408 #define HDIO_SET_MULTCOUNT      0x0321  /* change IDE blockmode */
 409 #define HDIO_SET_UNMASKINTR     0x0322  /* permit other irqs during I/O */
 410 #define HDIO_SET_KEEPSETTINGS   0x0323  /* keep ioctl settings on reset */
 411 #define HDIO_SET_32BIT          0x0324  /* change io_32bit flags */
 412 #define HDIO_SET_NOWERR         0x0325  /* change ignore-write-error flag */
 413 #define HDIO_SET_DMA            0x0326  /* change use-dma flag */
 414 #define HDIO_SET_PIO_MODE       0x0327  /* reconfig interface to new speed */
 415 #define HDIO_SCAN_HWIF          0x0328  /* register and (re)scan interface */
 416 #define HDIO_SET_NICE           0x0329  /* set nice flags */
 417 #define HDIO_UNREGISTER_HWIF    0x032a  /* unregister interface */
 418 #define HDIO_SET_WCACHE         0x032b  /* change write cache enable-disable */
 419 #define HDIO_SET_ACOUSTIC       0x032c  /* change acoustic behavior */
 420 #define HDIO_SET_BUSSTATE       0x032d  /* set the bus state of the hwif */
 421 #define HDIO_SET_QDMA           0x032e  /* change use-qdma flag */
 422 #define HDIO_SET_ADDRESS        0x032f  /* change lba addressing modes */
 423
 424 /* bus states */
 425 enum {
 426         BUSSTATE_OFF = 0,
 427         BUSSTATE_ON,
 428         BUSSTATE_TRISTATE
 429 };
 430
 431 /* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x033n/0x033n */
 432 /* 0x330 is reserved - used to be HDIO_GETGEO_BIG */
 433 /* 0x331 is reserved - used to be HDIO_GETGEO_BIG_RAW */
 434 /* 0x338 is reserved - used to be HDIO_SET_IDE_SCSI */
 435 /* 0x339 is reserved - used to be HDIO_SET_SCSI_IDE */
 436
 437 #define __NEW_HD_DRIVE_ID
 438
 439 /*
 440  * Structure returned by HDIO_GET_IDENTITY, as per ANSI NCITS ATA6 rev.1b spec.
 441  *
 442  * If you change something here, please remember to update fix_driveid() in
 443  * ide/probe.c.
 444  */
 445 struct hd_driveid {
 446         unsigned short  config;         /* lots of obsolete bit flags */
 447         unsigned short  cyls;           /* Obsolete, "physical" cyls */
 448         unsigned short  reserved2;      /* reserved (word 2) */
 449         unsigned short  heads;          /* Obsolete, "physical" heads */
 450         unsigned short  track_bytes;    /* unformatted bytes per track */
 451         unsigned short  sector_bytes;   /* unformatted bytes per sector */
 452         unsigned short  sectors;        /* Obsolete, "physical" sectors per track */
 453         unsigned short  vendor0;        /* vendor unique */
 454         unsigned short  vendor1;        /* vendor unique */
 455         unsigned short  vendor2;        /* Retired vendor unique */
 456         unsigned char   serial_no[20];  /* 0 = not_specified */
 457         unsigned short  buf_type;       /* Retired */
 458         unsigned short  buf_size;       /* Retired, 512 byte increments
 459                                          * 0 = not_specified
 460                                          */
 461         unsigned short  ecc_bytes;      /* for r/w long cmds; 0 = not_specified */
 462         unsigned char   fw_rev[8];      /* 0 = not_specified */
 463         unsigned char   model[40];      /* 0 = not_specified */
 464         unsigned char   max_multsect;   /* 0=not_implemented */
 465         unsigned char   vendor3;        /* vendor unique */
 466         unsigned short  dword_io;       /* 0=not_implemented; 1=implemented */
 467         unsigned char   vendor4;        /* vendor unique */
 468         unsigned char   capability;     /* (upper byte of word 49)
 469                                          *  3:  IORDYsup
 470                                          *  2:  IORDYsw
 471                                          *  1:  LBA
 472                                          *  0:  DMA
 473                                          */
 474         unsigned short  reserved50;     /* reserved (word 50) */
 475         unsigned char   vendor5;        /* Obsolete, vendor unique */
 476         unsigned char   tPIO;           /* Obsolete, 0=slow, 1=medium, 2=fast */
 477         unsigned char   vendor6;        /* Obsolete, vendor unique */
 478         unsigned char   tDMA;           /* Obsolete, 0=slow, 1=medium, 2=fast */
 479         unsigned short  field_valid;    /* (word 53)
 480                                          *  2:  ultra_ok        word  88
 481                                          *  1:  eide_ok         words 64-70
 482                                          *  0:  cur_ok          words 54-58
 483                                          */
 484         unsigned short  cur_cyls;       /* Obsolete, logical cylinders */
 485         unsigned short  cur_heads;      /* Obsolete, l heads */
 486         unsigned short  cur_sectors;    /* Obsolete, l sectors per track */
 487         unsigned short  cur_capacity0;  /* Obsolete, l total sectors on drive */
 488         unsigned short  cur_capacity1;  /* Obsolete, (2 words, misaligned int)     */
 489         unsigned char   multsect;       /* current multiple sector count */
 490         unsigned char   multsect_valid; /* when (bit0==1) multsect is ok */
 491         unsigned int    lba_capacity;   /* Obsolete, total number of sectors */
 492         unsigned short  dma_1word;      /* Obsolete, single-word dma info */
 493         unsigned short  dma_mword;      /* multiple-word dma info */
 494         unsigned short  eide_pio_modes; /* bits 0:mode3 1:mode4 */
 495         unsigned short  eide_dma_min;   /* min mword dma cycle time (ns) */
 496         unsigned short  eide_dma_time;  /* recommended mword dma cycle time (ns) */
 497         unsigned short  eide_pio;       /* min cycle time (ns), no IORDY  */
 498         unsigned short  eide_pio_iordy; /* min cycle time (ns), with IORDY */
 499         unsigned short  words69_70[2];  /* reserved words 69-70
 500                                          * future command overlap and queuing
 501                                          */
 502         /* HDIO_GET_IDENTITY currently returns only words 0 through 70 */
 503         unsigned short  words71_74[4];  /* reserved words 71-74
 504                                          * for IDENTIFY PACKET DEVICE command
 505                                          */
 506         unsigned short  queue_depth;    /* (word 75)
 507                                          * 15:5 reserved
 508                                          *  4:0 Maximum queue depth -1
 509                                          */
 510         unsigned short  words76_79[4];  /* reserved words 76-79 */
 511         unsigned short  major_rev_num;  /* (word 80) */
 512         unsigned short  minor_rev_num;  /* (word 81) */
 513         unsigned short  command_set_1;  /* (word 82) supported
 514                                          * 15:  Obsolete
 515                                          * 14:  NOP command
 516                                          * 13:  READ_BUFFER
 517                                          * 12:  WRITE_BUFFER
 518                                          * 11:  Obsolete
 519                                          * 10:  Host Protected Area
 520                                          *  9:  DEVICE Reset
 521                                          *  8:  SERVICE Interrupt
 522                                          *  7:  Release Interrupt
 523                                          *  6:  look-ahead
 524                                          *  5:  write cache
 525                                          *  4:  PACKET Command
 526                                          *  3:  Power Management Feature Set
 527                                          *  2:  Removable Feature Set
 528                                          *  1:  Security Feature Set
 529                                          *  0:  SMART Feature Set
 530                                          */
 531         unsigned short  command_set_2;  /* (word 83)
 532                                          * 15:  Shall be ZERO
 533                                          * 14:  Shall be ONE
 534                                          * 13:  FLUSH CACHE EXT
 535                                          * 12:  FLUSH CACHE
 536                                          * 11:  Device Configuration Overlay
 537                                          * 10:  48-bit Address Feature Set
 538                                          *  9:  Automatic Acoustic Management
 539                                          *  8:  SET MAX security
 540                                          *  7:  reserved 1407DT PARTIES
 541                                          *  6:  SetF sub-command Power-Up
 542                                          *  5:  Power-Up in Standby Feature Set
 543                                          *  4:  Removable Media Notification
 544                                          *  3:  APM Feature Set
 545                                          *  2:  CFA Feature Set
 546                                          *  1:  READ/WRITE DMA QUEUED
 547                                          *  0:  Download MicroCode
 548                                          */
 549         unsigned short  cfsse;          /* (word 84)
 550                                          * cmd set-feature supported extensions
 551                                          * 15:  Shall be ZERO
 552                                          * 14:  Shall be ONE
 553                                          * 13:6 reserved
 554                                          *  5:  General Purpose Logging
 555                                          *  4:  Streaming Feature Set
 556                                          *  3:  Media Card Pass Through
 557                                          *  2:  Media Serial Number Valid
 558                                          *  1:  SMART selt-test supported
 559                                          *  0:  SMART error logging
 560                                          */
 561         unsigned short  cfs_enable_1;   /* (word 85)
 562                                          * command set-feature enabled
 563                                          * 15:  Obsolete
 564                                          * 14:  NOP command
 565                                          * 13:  READ_BUFFER
 566                                          * 12:  WRITE_BUFFER
 567                                          * 11:  Obsolete
 568                                          * 10:  Host Protected Area
 569                                          *  9:  DEVICE Reset
 570                                          *  8:  SERVICE Interrupt
 571                                          *  7:  Release Interrupt
 572                                          *  6:  look-ahead
 573                                          *  5:  write cache
 574                                          *  4:  PACKET Command
 575                                          *  3:  Power Management Feature Set
 576                                          *  2:  Removable Feature Set
 577                                          *  1:  Security Feature Set
 578                                          *  0:  SMART Feature Set
 579                                          */
 580         unsigned short  cfs_enable_2;   /* (word 86)
 581                                          * command set-feature enabled
 582                                          * 15:  Shall be ZERO
 583                                          * 14:  Shall be ONE
 584                                          * 13:  FLUSH CACHE EXT
 585                                          * 12:  FLUSH CACHE
 586                                          * 11:  Device Configuration Overlay
 587                                          * 10:  48-bit Address Feature Set
 588                                          *  9:  Automatic Acoustic Management
 589                                          *  8:  SET MAX security
 590                                          *  7:  reserved 1407DT PARTIES
 591                                          *  6:  SetF sub-command Power-Up
 592                                          *  5:  Power-Up in Standby Feature Set
 593                                          *  4:  Removable Media Notification
 594                                          *  3:  APM Feature Set
 595                                          *  2:  CFA Feature Set
 596                                          *  1:  READ/WRITE DMA QUEUED
 597                                          *  0:  Download MicroCode
 598                                          */
 599         unsigned short  csf_default;    /* (word 87)
 600                                          * command set-feature default
 601                                          * 15:  Shall be ZERO
 602                                          * 14:  Shall be ONE
 603                                          * 13:6 reserved
 604                                          *  5:  General Purpose Logging enabled
 605                                          *  4:  Valid CONFIGURE STREAM executed
 606                                          *  3:  Media Card Pass Through enabled
 607                                          *  2:  Media Serial Number Valid
 608                                          *  1:  SMART selt-test supported
 609                                          *  0:  SMART error logging
 610                                          */
 611         unsigned short  dma_ultra;      /* (word 88) */
 612         unsigned short  trseuc;         /* time required for security erase */
 613         unsigned short  trsEuc;         /* time required for enhanced erase */
 614         unsigned short  CurAPMvalues;   /* current APM values */
 615         unsigned short  mprc;           /* master password revision code */
 616         unsigned short  hw_config;      /* hardware config (word 93)
 617                                          * 15:  Shall be ZERO
 618                                          * 14:  Shall be ONE
 619                                          * 13:
 620                                          * 12:
 621                                          * 11:
 622                                          * 10:
 623                                          *  9:
 624                                          *  8:
 625                                          *  7:
 626                                          *  6:
 627                                          *  5:
 628                                          *  4:
 629                                          *  3:
 630                                          *  2:
 631                                          *  1:
 632                                          *  0:  Shall be ONE
 633                                          */
 634         unsigned short  acoustic;       /* (word 94)
 635                                          * 15:8 Vendor's recommended value
 636                                          *  7:0 current value
 637                                          */
 638         unsigned short  msrqs;          /* min stream request size */
 639         unsigned short  sxfert;         /* stream transfer time */
 640         unsigned short  sal;            /* stream access latency */
 641         unsigned int    spg;            /* stream performance granularity */
 642         unsigned long long lba_capacity_2;/* 48-bit total number of sectors */
 643         unsigned short  words104_125[22];/* reserved words 104-125 */
 644         unsigned short  last_lun;       /* (word 126) */
 645         unsigned short  word127;        /* (word 127) Feature Set
 646                                          * Removable Media Notification
 647                                          * 15:2 reserved
 648                                          *  1:0 00 = not supported
 649                                          *      01 = supported
 650                                          *      10 = reserved
 651                                          *      11 = reserved
 652                                          */
 653         unsigned short  dlf;            /* (word 128)
 654                                          * device lock function
 655                                          * 15:9 reserved
 656                                          *  8   security level 1:max 0:high
 657                                          *  7:6 reserved
 658                                          *  5   enhanced erase
 659                                          *  4   expire
 660                                          *  3   frozen
 661                                          *  2   locked
 662                                          *  1   en/disabled
 663                                          *  0   capability
 664                                          */
 665         unsigned short  csfo;           /*  (word 129)
 666                                          * current set features options
 667                                          * 15:4 reserved
 668                                          *  3:  auto reassign
 669                                          *  2:  reverting
 670                                          *  1:  read-look-ahead
 671                                          *  0:  write cache
 672                                          */
 673         unsigned short  words130_155[26];/* reserved vendor words 130-155 */
 674         unsigned short  word156;        /* reserved vendor word 156 */
 675         unsigned short  words157_159[3];/* reserved vendor words 157-159 */
 676         unsigned short  cfa_power;      /* (word 160) CFA Power Mode
 677                                          * 15 word 160 supported
 678                                          * 14 reserved
 679                                          * 13
 680                                          * 12
 681                                          * 11:0
 682                                          */
 683         unsigned short  words161_175[15];/* Reserved for CFA */
 684         unsigned short  words176_205[30];/* Current Media Serial Number */
 685         unsigned short  words206_254[49];/* reserved words 206-254 */
 686         unsigned short  integrity_word; /* (word 255)
 687                                          * 15:8 Checksum
 688                                          *  7:0 Signature
 689                                          */
 690 };
 691
 692 /*
 693  * IDE "nice" flags. These are used on a per drive basis to determine
 694  * when to be nice and give more bandwidth to the other devices which
 695  * share the same IDE bus.
 696  */
 697 #define IDE_NICE_DSC_OVERLAP    (0)     /* per the DSC overlap protocol */
 698 #define IDE_NICE_ATAPI_OVERLAP  (1)     /* not supported yet */
 699 #define IDE_NICE_0              (2)     /* when sure that it won't affect us */
 700 #define IDE_NICE_1              (3)     /* when probably won't affect us much */
 701 #define IDE_NICE_2              (4)     /* when we know it's on our expense */
 702
 703 #endif  /* _LINUX_HDREG_H */