drivers/scsi/isci/core/intel_ata.h

   1 /*
   2  * This file is provided under a dual BSD/GPLv2 license.  When using or
   3  * redistributing this file, you may do so under either license.
   4  *
   5  * GPL LICENSE SUMMARY
   6  *
   7  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of version 2 of the GNU General Public License as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * BSD LICENSE
  25  *
  26  * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
  27  * All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  *
  33  *   * Redistributions of source code must retain the above copyright
  34  *     notice, this list of conditions and the following disclaimer.
  35  *   * Redistributions in binary form must reproduce the above copyright
  36  *     notice, this list of conditions and the following disclaimer in
  37  *     the documentation and/or other materials provided with the
  38  *     distribution.
  39  *   * Neither the name of Intel Corporation nor the names of its
  40  *     contributors may be used to endorse or promote products derived
  41  *     from this software without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  44  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  45  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  46  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  47  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  48  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  49  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  50  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  51  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  52  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  53  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  54  */
  55
  56 /**
  57  * This file defines all of the ATA related constants, enumerations, and types.
  58  *     Please note that this file does not necessarily contain an exhaustive
  59  *    list of all constants, commands, sub-commands, etc.
  60  *
  61  *
  62  */
  63
  64 #ifndef _ATA_H_
  65 #define _ATA_H_
  66
  67 #include <linux/types.h>
  68
  69 /**
  70  *
  71  *
  72  * ATA_COMMAND_CODES These constants depict the various ATA command codes
  73  * defined in the ATA/ATAPI specification.
  74  */
  75 #define ATA_IDENTIFY_DEVICE         0xEC
  76 #define ATA_CHECK_POWER_MODE        0xE5
  77 #define ATA_STANDBY                 0xE2
  78 #define ATA_STANDBY_IMMED           0xE0
  79 #define ATA_IDLE_IMMED              0xE1
  80 #define ATA_IDLE                    0xE3
  81 #define ATA_FLUSH_CACHE             0xE7
  82 #define ATA_FLUSH_CACHE_EXT         0xEA
  83 #define ATA_READ_DMA_EXT            0x25
  84 #define ATA_READ_DMA                0xC8
  85 #define ATA_READ_SECTORS_EXT        0x24
  86 #define ATA_READ_SECTORS            0x20
  87 #define ATA_WRITE_DMA_EXT           0x35
  88 #define ATA_WRITE_DMA               0xCA
  89 #define ATA_WRITE_SECTORS_EXT       0x34
  90 #define ATA_WRITE_SECTORS           0x30
  91 #define ATA_WRITE_UNCORRECTABLE     0x45
  92 #define ATA_READ_VERIFY_SECTORS     0x40
  93 #define ATA_READ_VERIFY_SECTORS_EXT 0x42
  94 #define ATA_READ_BUFFER             0xE4
  95 #define ATA_WRITE_BUFFER            0xE8
  96 #define ATA_EXECUTE_DEVICE_DIAG     0x90
  97 #define ATA_SET_FEATURES            0xEF
  98 #define ATA_SMART                   0xB0
  99 #define ATA_PACKET_IDENTIFY         0xA1
 100 #define ATA_PACKET                  0xA0
 101 #define ATA_READ_FPDMA              0x60
 102 #define ATA_WRITE_FPDMA             0x61
 103 #define ATA_READ_LOG_EXT            0x2F
 104 #define ATA_NOP                     0x00
 105 #define ATA_DEVICE_RESET            0x08
 106 #define ATA_MEDIA_EJECT             0xED
 107
 108 /**
 109  *
 110  *
 111  * ATA_SMART_SUB_COMMAND_CODES These constants define the ATA SMART command
 112  * sub-codes that can be executed.
 113  */
 114 #define ATA_SMART_SUB_CMD_ENABLE        0xD8
 115 #define ATA_SMART_SUB_CMD_DISABLE       0xD9
 116 #define ATA_SMART_SUB_CMD_RETURN_STATUS 0xDA
 117 #define ATA_SMART_SUB_CMD_READ_LOG      0xD5
 118
 119 /**
 120  *
 121  *
 122  * ATA_SET_FEATURES_SUB_COMMAND_CODES These constants define the ATA SET
 123  * FEATURES command sub-codes that can be executed.
 124  */
 125 #define ATA_SET_FEATURES_SUB_CMD_ENABLE_CACHE       0x02
 126 #define ATA_SET_FEATURES_SUB_CMD_DISABLE_CACHE      0x82
 127 #define ATA_SET_FEATURES_SUB_CMD_DISABLE_READ_AHEAD 0x55
 128 #define ATA_SET_FEATURES_SUB_CMD_ENABLE_READ_AHEAD  0xAA
 129 #define ATA_SET_FEATURES_SUB_CMD_SET_TRANSFER_MODE  0x3
 130
 131 /**
 132  *
 133  *
 134  * ATA_READ_LOG_EXT_PAGE_CODES This is a list of log page codes available for
 135  * use.
 136  */
 137 #define ATA_LOG_PAGE_NCQ_ERROR                  0x10
 138 #define ATA_LOG_PAGE_SMART_SELF_TEST            0x06
 139 #define ATA_LOG_PAGE_EXTENDED_SMART_SELF_TEST   0x07
 140
 141 /**
 142  *
 143  *
 144  * ATA_LOG_PAGE_NCQ_ERROR_CONSTANTS These constants define standard values for
 145  * use when requesting the NCQ error log page.
 146  */
 147 #define ATA_LOG_PAGE_NCQ_ERROR_SECTOR        0
 148 #define ATA_LOG_PAGE_NCQ_ERROR_SECTOR_COUNT  1
 149
 150 /**
 151  *
 152  *
 153  * ATA_STATUS_REGISTER_BITS The following are status register bit definitions
 154  * per ATA/ATAPI-7.
 155  */
 156 #define ATA_STATUS_REG_BSY_BIT          0x80
 157 #define ATA_STATUS_REG_DEVICE_FAULT_BIT 0x20
 158 #define ATA_STATUS_REG_ERROR_BIT        0x01
 159
 160 /**
 161  *
 162  *
 163  * ATA_ERROR_REGISTER_BITS The following are error register bit definitions per
 164  * ATA/ATAPI-7.
 165  */
 166 #define ATA_ERROR_REG_NO_MEDIA_BIT              0x02
 167 #define ATA_ERROR_REG_ABORT_BIT                 0x04
 168 #define ATA_ERROR_REG_MEDIA_CHANGE_REQUEST_BIT  0x08
 169 #define ATA_ERROR_REG_ID_NOT_FOUND_BIT          0x10
 170 #define ATA_ERROR_REG_MEDIA_CHANGE_BIT          0x20
 171 #define ATA_ERROR_REG_UNCORRECTABLE_BIT         0x40
 172 #define ATA_ERROR_REG_WRITE_PROTECTED_BIT       0x40
 173 #define ATA_ERROR_REG_ICRC_BIT                  0x80
 174
 175 /**
 176  *
 177  *
 178  * ATA_CONTROL_REGISTER_BITS The following are control register bit definitions
 179  * per ATA/ATAPI-7
 180  */
 181 #define ATA_CONTROL_REG_INTERRUPT_ENABLE_BIT 0x02
 182 #define ATA_CONTROL_REG_SOFT_RESET_BIT       0x04
 183 #define ATA_CONTROL_REG_HIGH_ORDER_BYTE_BIT  0x80
 184
 185 /**
 186  *
 187  *
 188  * ATA_DEVICE_HEAD_REGISTER_BITS The following are device/head register bit
 189  * definitions per ATA/ATAPI-7.
 190  */
 191 #define ATA_DEV_HEAD_REG_LBA_MODE_ENABLE  0x40
 192 #define ATA_DEV_HEAD_REG_FUA_ENABLE       0x80
 193
 194 /**
 195  *
 196  *
 197  * ATA_IDENTIFY_DEVICE_FIELD_LENGTHS The following constants define the number
 198  * of bytes contained in various fields found in the IDENTIFY DEVICE data
 199  * structure.
 200  */
 201 #define ATA_IDENTIFY_SERIAL_NUMBER_LEN        20
 202 #define ATA_IDENTIFY_MODEL_NUMBER_LEN         40
 203 #define ATA_IDENTIFY_FW_REVISION_LEN          8
 204 #define ATA_IDENTIFY_48_LBA_LEN               8
 205 #define ATA_IDENTIFY_MEDIA_SERIAL_NUMBER_LEN  30
 206 #define ATA_IDENTIFY_WWN_LEN                  8
 207
 208 /**
 209  *
 210  *
 211  * ATA_IDENTIFY_DEVICE_FIELD_MASKS The following constants define bit masks
 212  * utilized to determine if a feature is supported/enabled or if a bit is
 213  * simply set inside of the IDENTIFY DEVICE data structre.
 214  */
 215 #define ATA_IDENTIFY_REMOVABLE_MEDIA_ENABLE              0x0080
 216 #define ATA_IDENTIFY_CAPABILITIES1_NORMAL_DMA_ENABLE     0x0100
 217 #define ATA_IDENTIFY_CAPABILITIES1_STANDBY_ENABLE        0x2000
 218 #define ATA_IDENTIFY_COMMAND_SET_SUPPORTED0_SMART_ENABLE 0x0001
 219 #define ATA_IDENTIFY_COMMAND_SET_SUPPORTED1_48BIT_ENABLE 0x0400
 220 #define ATA_IDENTIFY_COMMAND_SET_WWN_SUPPORT_ENABLE      0x0100
 221 #define ATA_IDENTIFY_COMMAND_SET_ENABLED0_SMART_ENABLE   0x0001
 222 #define ATA_IDENTIFY_SATA_CAPABILITIES_NCQ_ENABLE        0x0100
 223 #define ATA_IDENTIFY_NCQ_QUEUE_DEPTH_ENABLE              0x001F
 224 #define ATA_IDENTIFY_SECTOR_LARGER_THEN_512_ENABLE       0x0100
 225 #define ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_MASK   0x000F
 226 #define ATA_IDENTIFY_LOGICAL_SECTOR_PER_PHYSICAL_SECTOR_ENABLE 0x2000
 227 #define ATA_IDENTIFY_WRITE_UNCORRECTABLE_SUPPORT         0x0004
 228 #define ATA_IDENTIFY_COMMAND_SET_SMART_SELF_TEST_SUPPORTED     0x0002
 229
 230 /**
 231  *
 232  *
 233  * ATAPI_IDENTIFY_DEVICE_FIELD_MASKS These constants define the various bit
 234  * definitions for the fields in the PACKET IDENTIFY DEVICE data structure.
 235  */
 236 #define ATAPI_IDENTIFY_16BYTE_CMD_PCKT_ENABLE       0x01
 237
 238 /**
 239  *
 240  *
 241  * ATA_PACKET_FEATURE_BITS These constants define the various bit definitions
 242  * for the ATA PACKET feature register.
 243  */
 244 #define ATA_PACKET_FEATURE_DMA     0x01
 245 #define ATA_PACKET_FEATURE_OVL     0x02
 246 #define ATA_PACKET_FEATURE_DMADIR  0x04
 247
 248 /**
 249  *
 250  *
 251  * ATA_Device_Power_Mode_Values These constants define the power mode values
 252  * returned by ATA_Check_Power_Mode
 253  */
 254 #define ATA_STANDBY_POWER_MODE    0x00
 255 #define ATA_IDLE_POWER_MODE       0x80
 256 #define ATA_ACTIVE_POWER_MODE     0xFF
 257
 258 /**
 259  *
 260  *
 261  * ATA_WRITE_UNCORRECTIABLE feature field values These constants define the
 262  * Write Uncorrectable feature values used with the SATI translation.
 263  */
 264 #define ATA_WRITE_UNCORRECTABLE_PSUEDO    0x55
 265 #define ATA_WRITE_UNCORRECTABLE_FLAGGED   0xAA
 266
 267
 268
 269 /**
 270  * struct ATA_IDENTIFY_DEVICE - This structure depicts the ATA IDENTIFY DEVICE
 271  *    data format.
 272  *
 273  *
 274  */
 275 struct ata_identify_device_data {
 276         u16 general_config_bits;                                                /* word  00 */
 277         u16 obsolete0;                                                          /* word  01 (num cylinders) */
 278         u16 vendor_specific_config_bits;                                        /* word  02 */
 279         u16 obsolete1;                                                          /* word  03 (num heads) */
 280         u16 retired1[2];                                                        /* words 04-05 */
 281         u16 obsolete2;                                                          /* word  06 (sectors / track) */
 282         u16 reserved_for_compact_flash1[2];                                     /* words 07-08 */
 283         u16 retired0;                                                           /* word  09 */
 284         u8 serial_number[ATA_IDENTIFY_SERIAL_NUMBER_LEN];                       /* word 10-19 */
 285         u16 retired2[2];                                                        /* words 20-21 */
 286         u16 obsolete4;                                                          /* word  22 */
 287         u8 firmware_revision[ATA_IDENTIFY_FW_REVISION_LEN];                     /* words 23-26 */
 288         u8 model_number[ATA_IDENTIFY_MODEL_NUMBER_LEN];                         /* words 27-46 */
 289         u16 max_sectors_per_multiple;                                           /* word  47 */
 290         u16 reserved0;                                                          /* word  48 */
 291         u16 capabilities1;                                                      /* word  49 */
 292         u16 capabilities2;                                                      /* word  50 */
 293         u16 obsolete5[2];                                                       /* words 51-52 */
 294         u16 validity_bits;                                                      /* word  53 */
 295         u16 obsolete6[5];                                                       /*
 296                                                                                  * words 54-58 Used to be:
 297                                                                                  * current cylinders,
 298                                                                                  * current heads,
 299                                                                                  * current sectors/Track,
 300                                                                                  * current capacity */
 301         u16 current_max_sectors_per_multiple;                                   /* word  59 */
 302         u8 total_num_sectors[4];                                                /* words 60-61 */
 303         u16 obsolete7;                                                          /* word  62 */
 304         u16 multi_word_dma_mode;                                                /* word  63 */
 305         u16 pio_modes_supported;                                                /* word  64 */
 306         u16 min_multiword_dma_transfer_cycle;                                   /* word  65 */
 307         u16 rec_min_multiword_dma_transfer_cycle;                               /* word  66 */
 308         u16 min_pio_transfer_no_flow_ctrl;                                      /* word  67 */
 309         u16 min_pio_transfer_with_flow_ctrl;                                    /* word  68 */
 310         u16 reserved1[2];                                                       /* words 69-70 */
 311         u16 reserved2[4];                                                       /* words 71-74 */
 312         u16 queue_depth;                                                        /* word  75 */
 313         u16 serial_ata_capabilities;                                            /* word  76 */
 314         u16 serial_ata_reserved;                                                /* word  77 */
 315         u16 serial_ata_features_supported;                                      /* word  78 */
 316         u16 serial_ata_features_enabled;                                        /* word  79 */
 317         u16 major_version_number;                                               /* word  80 */
 318         u16 minor_version_number;                                               /* word  81 */
 319         u16 command_set_supported0;                                             /* word  82 */
 320         u16 command_set_supported1;                                             /* word  83 */
 321         u16 command_set_supported_extention;                                    /* word  84 */
 322         u16 command_set_enabled0;                                               /* word  85 */
 323         u16 command_set_enabled1;                                               /* word  86 */
 324         u16 command_set_default;                                                /* word  87 */
 325         u16 ultra_dma_mode;                                                     /* word  88 */
 326         u16 security_erase_completion_time;                                     /* word  89 */
 327         u16 enhanced_security_erase_time;                                       /* word  90 */
 328         u16 current_power_mgmt_value;                                           /* word  91 */
 329         u16 master_password_revision;                                           /* word  92 */
 330         u16 hardware_reset_result;                                              /* word  93 */
 331         u16 current_acoustic_management_value;                                  /* word  94 */
 332         u16 stream_min_request_size;                                            /* word  95 */
 333         u16 stream_transfer_time;                                               /* word  96 */
 334         u16 stream_access_latency;                                              /* word  97 */
 335         u16 stream_performance_granularity[2];                                  /* words 98-99 */
 336         u8 max_48bit_lba[ATA_IDENTIFY_48_LBA_LEN];                              /* words 100-103 */
 337         u16 streaming_transfer_time;                                            /* word  104 */
 338         u16 reserved3;                                                          /* word  105 */
 339         u16 physical_logical_sector_info;                                       /* word  106 */
 340         u16 acoustic_test_interseek_delay;                                      /* word  107 */
 341         u8 world_wide_name[ATA_IDENTIFY_WWN_LEN];                               /* words 108-111 */
 342         u8 reserved_for_wwn_extention[ATA_IDENTIFY_WWN_LEN];                    /* words 112-115 */
 343         u16 reserved4;                                                          /* word  116 */
 344         u8 words_per_logical_sector[4];                                         /* words 117-118 */
 345         u16 command_set_supported2;                                             /* word  119 */
 346         u16 reserved5[7];                                                       /* words 120-126 */
 347         u16 removable_media_status;                                             /* word  127 */
 348         u16 security_status;                                                    /* word  128 */
 349         u16 vendor_specific1[31];                                               /* words 129-159 */
 350         u16 cfa_power_mode1;                                                    /* word  160 */
 351         u16 reserved_for_compact_flash2[7];                                     /* words 161-167 */
 352         u16 device_nominal_form_factor;                                         /* word 168 */
 353         u16 reserved_for_compact_flash3[7];                                     /* words 169-175 */
 354         u16 current_media_serial_number[ATA_IDENTIFY_MEDIA_SERIAL_NUMBER_LEN];  /* words 176-205 */
 355         u16 reserved6[3];                                                       /* words 206-208 */
 356         u16 logical_sector_alignment;                                           /* words 209 */
 357         u16 reserved7[7];                                                       /* words 210-216 */
 358         u16 nominal_media_rotation_rate;                                        /* word 217 */
 359         u16 reserved8[37];                                                      /* words 218-254 */
 360         u16 integrity_word;                                                     /* word  255 */
 361
 362 };
 363
 364 #define ATA_IDENTIFY_DEVICE_GET_OFFSET(field_name) \
 365         ((unsigned long)&(((struct ata_identify_device_data *)0)->field_name))
 366 #define ATA_IDENTIFY_DEVICE_WCE_ENABLE  0x20
 367 #define ATA_IDENTIFY_DEVICE_RA_ENABLE   0x40
 368
 369 /**
 370  * struct ATAPI_IDENTIFY_PACKET_DATA - The following structure depicts the
 371  *    ATA-ATAPI 7 version of the IDENTIFY PACKET DEVICE data structure.
 372  *
 373  *
 374  */
 375 struct atapi_identify_packet_device {
 376         u16 generalConfigBits;                                  /* word  00 */
 377         u16 reserved0;                                          /* word  01 (num cylinders) */
 378         u16 uniqueConfigBits;                                   /* word  02 */
 379         u16 reserved1[7];                                       /* words 03 - 09 */
 380         u8 serialNumber[ATA_IDENTIFY_SERIAL_NUMBER_LEN];        /* word 10-19 */
 381         u16 reserved2[3];                                       /* words 20-22 */
 382         u8 firmwareRevision[ATA_IDENTIFY_FW_REVISION_LEN];      /* words 23-26 */
 383         u8 modelNumber[ATA_IDENTIFY_MODEL_NUMBER_LEN];          /* words 27-46 */
 384         u16 reserved4[2];                                       /* words 47-48 */
 385         u16 capabilities1;                                      /* word  49 */
 386         u16 capabilities2;                                      /* word  50 */
 387         u16 obsolete0[2];                                       /* words 51-52 */
 388         u16 validityBits;                                       /* word  53 */
 389         u16 reserved[8];                                        /* words 54-61 */
 390
 391         u16 DMADIRBitRequired;                                  /* word  62, page2 */
 392         u16 multiWordDmaMode;                                   /* word  63 */
 393         u16 pioModesSupported;                                  /* word  64 */
 394         u16 minMultiwordDmaTransferCycle;                       /* word  65 */
 395         u16 recMinMultiwordDmaTransferCycle;                    /* word  66 */
 396         u16 minPioTransferNoFlowCtrl;                           /* word  67 */
 397         u16 minPioTransferWithFlowCtrl;                         /* word  68 */
 398         u16 reserved6[2];                                       /* words 69-70 */
 399         u16 nsFromPACKETReceiptToBusRelease;                    /* word  71 */
 400         u16 nsFromSERVICEReceiptToBSYreset;                     /* wore  72 */
 401         u16 reserved7[2];                                       /* words 73-74 */
 402         u16 queueDepth;                                         /* word  75 */
 403         u16 serialAtaCapabilities;                              /* word  76 */
 404         u16 serialAtaReserved;                                  /* word  77 */
 405         u16 serialAtaFeaturesSupported;                         /* word  78 */
 406         u16 serialAtaFeaturesEnabled;                           /* word  79 */
 407
 408         u16 majorVersionNumber;                                 /* word  80, page3 */
 409         u16 minorVersionNumber;                                 /* word  81 */
 410         u16 commandSetSupported0;                               /* word  82 */
 411         u16 commandSetSupported1;                               /* word  83 */
 412
 413         u16 commandSetSupportedExtention;                       /* word  84, page4 */
 414         u16 commandSetEnabled0;                                 /* word  85 */
 415         u16 commandSetEnabled1;                                 /* word  86 */
 416         u16 commandSetDefault;                                  /* word  87 */
 417
 418         u16 ultraDmaMode;                                       /* word  88, page5 */
 419         u16 reserved8[4];                                       /* words 89 - 92 */
 420
 421         u16 hardwareResetResult;                                /* word  93, page6 */
 422         u16 currentAcousticManagementValue;                     /* word  94 */
 423         u16 reserved9[30];                                      /* words 95-124 */
 424         u16 ATAPIByteCount0Behavior;                            /* word  125 */
 425         u16 obsolete1;                                          /* word  126 */
 426         u16 removableMediaStatus;                               /* word  127, */
 427
 428         u16 securityStatus;                                     /* word  128, page7 */
 429         u16 vendorSpecific1[31];                                /* words 129-159 */
 430         u16 reservedForCompactFlash[16];                        /* words 160-175 */
 431         u16 reserved10[79];                                     /* words 176-254 */
 432         u16 integrityWord;                                      /* word  255 */
 433 };
 434
 435 /**
 436  * struct ata_extended_smart_self_test_log - The following structure depicts
 437  *    the ATA-8 version of the Extended SMART self test log page descriptor
 438  *    entry.
 439  *
 440  *
 441  */
 442 union ata_descriptor_entry {
 443         struct DESCRIPTOR_ENTRY {
 444                 u8 lba_field;
 445                 u8 status_byte;
 446                 u8 time_stamp_low;
 447                 u8 time_stamp_high;
 448                 u8 checkpoint_byte;
 449                 u8 failing_lba_low;
 450                 u8 failing_lba_mid;
 451                 u8 failing_lba_high;
 452                 u8 failing_lba_low_ext;
 453                 u8 failing_lba_mid_ext;
 454                 u8 failing_lba_high_ext;
 455
 456                 u8 vendor_specific1;
 457                 u8 vendor_specific2;
 458                 u8 vendor_specific3;
 459                 u8 vendor_specific4;
 460                 u8 vendor_specific5;
 461                 u8 vendor_specific6;
 462                 u8 vendor_specific7;
 463                 u8 vendor_specific8;
 464                 u8 vendor_specific9;
 465                 u8 vendor_specific10;
 466                 u8 vendor_specific11;
 467                 u8 vendor_specific12;
 468                 u8 vendor_specific13;
 469                 u8 vendor_specific14;
 470                 u8 vendor_specific15;
 471         } DESCRIPTOR_ENTRY;
 472
 473         u8 descriptor_entry[26];
 474
 475 };
 476
 477 /**
 478  * struct ata_extended_smart_self_test_log - The following structure depicts
 479  *    the ATA-8 version of the SMART self test log page descriptor entry.
 480  *
 481  *
 482  */
 483 union ata_smart_descriptor_entry {
 484         struct SMART_DESCRIPTOR_ENTRY {
 485                 u8 lba_field;
 486                 u8 status_byte;
 487                 u8 time_stamp_low;
 488                 u8 time_stamp_high;
 489                 u8 checkpoint_byte;
 490                 u8 failing_lba_low;
 491                 u8 failing_lba_mid;
 492                 u8 failing_lba_high;
 493                 u8 failing_lba_low_ext;
 494
 495                 u8 vendor_specific1;
 496                 u8 vendor_specific2;
 497                 u8 vendor_specific3;
 498                 u8 vendor_specific4;
 499                 u8 vendor_specific5;
 500                 u8 vendor_specific6;
 501                 u8 vendor_specific7;
 502                 u8 vendor_specific8;
 503                 u8 vendor_specific9;
 504                 u8 vendor_specific10;
 505                 u8 vendor_specific11;
 506                 u8 vendor_specific12;
 507                 u8 vendor_specific13;
 508                 u8 vendor_specific14;
 509                 u8 vendor_specific15;
 510         } SMART_DESCRIPTOR_ENTRY;
 511
 512         u8 smart_descriptor_entry[24];
 513
 514 };
 515
 516 /**
 517  * struct ata_extended_smart_self_test_log - The following structure depicts
 518  *    the ATA-8 version of the Extended SMART self test log page.
 519  *
 520  *
 521  */
 522 struct ata_extended_smart_self_test_log {
 523         u8 self_test_log_data_structure_revision_number;        /* byte 0 */
 524         u8 reserved0;                                           /* byte 1 */
 525         u8 self_test_descriptor_index[2];                       /* byte 2-3 */
 526
 527         union ata_descriptor_entry descriptor_entrys[19];           /* bytes 4-497 */
 528
 529         u8 vendor_specific[2];                                  /* byte 498-499 */
 530         u8 reserved1[11];                                       /* byte 500-510 */
 531         u8 data_structure_checksum;                             /* byte 511 */
 532
 533 };
 534
 535 /**
 536  * struct ata_extended_smart_self_test_log - The following structure depicts
 537  *    the ATA-8 version of the SMART self test log page.
 538  *
 539  *
 540  */
 541 struct ata_smart_self_test_log {
 542         u8 self_test_log_data_structure_revision_number[2];     /* bytes 0-1 */
 543
 544         union ata_smart_descriptor_entry descriptor_entrys[21];     /* bytes 2-505 */
 545
 546         u8 vendor_specific[2];                                  /* byte 506-507 */
 547         u8 self_test_index;                                     /* byte 508 */
 548         u8 reserved1[2];                                        /* byte 509-510 */
 549         u8 data_structure_checksum;                             /* byte 511 */
 550
 551 };
 552
 553 #endif /* _ATA_H_ */
 554