drivers/scsi.h

   1 #ifndef _LINUX_SCSI_H
   2 #define _LINUX_SCSI_H
   3
   4 /*
   5  * This header file contains public constants and structures used by
   6  * the scsi code for linux.
   7  */
   8
   9 /*
  10     $Header: /usr/src/linux/include/linux/RCS/scsi.h,v 1.3 1993/09/24 12:20:33 drew Exp $
  11
  12     For documentation on the OPCODES, MESSAGES, and SENSE values,
  13     please consult the SCSI standard.
  14
  15 */
  16
  17 /*
  18  *      SCSI opcodes
  19  */
  20
  21 #define TEST_UNIT_READY       0x00
  22 #define REZERO_UNIT           0x01
  23 #define REQUEST_SENSE         0x03
  24 #define FORMAT_UNIT           0x04
  25 #define READ_BLOCK_LIMITS     0x05
  26 #define REASSIGN_BLOCKS       0x07
  27 #define READ_6                0x08
  28 #define WRITE_6               0x0a
  29 #define SEEK_6                0x0b
  30 #define READ_REVERSE          0x0f
  31 #define WRITE_FILEMARKS       0x10
  32 #define SPACE                 0x11
  33 #define INQUIRY               0x12
  34 #define RECOVER_BUFFERED_DATA 0x14
  35 #define MODE_SELECT           0x15
  36 #define RESERVE               0x16
  37 #define RELEASE               0x17
  38 #define COPY                  0x18
  39 #define ERASE                 0x19
  40 #define MODE_SENSE            0x1a
  41 #define START_STOP            0x1b
  42 #define RECEIVE_DIAGNOSTIC    0x1c
  43 #define SEND_DIAGNOSTIC       0x1d
  44 #define ALLOW_MEDIUM_REMOVAL  0x1e
  45
  46 #define SET_WINDOW            0x24
  47 #define READ_CAPACITY         0x25
  48 #define READ_10               0x28
  49 #define WRITE_10              0x2a
  50 #define SEEK_10               0x2b
  51 #define WRITE_VERIFY          0x2e
  52 #define VERIFY                0x2f
  53 #define SEARCH_HIGH           0x30
  54 #define SEARCH_EQUAL          0x31
  55 #define SEARCH_LOW            0x32
  56 #define SET_LIMITS            0x33
  57 #define PRE_FETCH             0x34
  58 #define READ_POSITION         0x34
  59 #define SYNCHRONIZE_CACHE     0x35
  60 #define LOCK_UNLOCK_CACHE     0x36
  61 #define READ_DEFECT_DATA      0x37
  62 #define MEDIUM_SCAN           0x38
  63 #define COMPARE               0x39
  64 #define COPY_VERIFY           0x3a
  65 #define WRITE_BUFFER          0x3b
  66 #define READ_BUFFER           0x3c
  67 #define UPDATE_BLOCK          0x3d
  68 #define READ_LONG             0x3e
  69 #define WRITE_LONG            0x3f
  70 #define CHANGE_DEFINITION     0x40
  71 #define WRITE_SAME            0x41
  72 #define READ_TOC              0x43
  73 #define LOG_SELECT            0x4c
  74 #define LOG_SENSE             0x4d
  75 #define MODE_SELECT_10        0x55
  76 #define RESERVE_10            0x56
  77 #define RELEASE_10            0x57
  78 #define MODE_SENSE_10         0x5a
  79 #define PERSISTENT_RESERVE_IN 0x5e
  80 #define PERSISTENT_RESERVE_OUT 0x5f
  81 #define REPORT_LUNS           0xa0
  82 #define MOVE_MEDIUM           0xa5
  83 #define READ_12               0xa8
  84 #define WRITE_12              0xaa
  85 #define WRITE_VERIFY_12       0xae
  86 #define SEARCH_HIGH_12        0xb0
  87 #define SEARCH_EQUAL_12       0xb1
  88 #define SEARCH_LOW_12         0xb2
  89 #define READ_ELEMENT_STATUS   0xb8
  90 #define SEND_VOLUME_TAG       0xb6
  91 #define WRITE_LONG_2          0xea
  92 #define READ_16               0x88
  93 #define WRITE_16              0x8a
  94 #define VERIFY_16             0x8f
  95 #define SERVICE_ACTION_IN     0x9e
  96 /* values for service action in */
  97 #define SAI_READ_CAPACITY_16  0x10
  98
  99 #define SCSI_RETRY_10(c) ((c) == READ_6 || (c) == WRITE_6 || (c) == SEEK_6)
 100
 101 /*
 102  *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft
 103  *  T10/1561-D Revision 4 Draft dated 7th November 2002.
 104  */
 105 #define SAM_STAT_GOOD            0x00
 106 #define SAM_STAT_CHECK_CONDITION 0x02
 107 #define SAM_STAT_CONDITION_MET   0x04
 108 #define SAM_STAT_BUSY            0x08
 109 #define SAM_STAT_INTERMEDIATE    0x10
 110 #define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14
 111 #define SAM_STAT_RESERVATION_CONFLICT 0x18
 112 #define SAM_STAT_COMMAND_TERMINATED 0x22        /* obsolete in SAM-3 */
 113 #define SAM_STAT_TASK_SET_FULL   0x28
 114 #define SAM_STAT_ACA_ACTIVE      0x30
 115 #define SAM_STAT_TASK_ABORTED    0x40
 116
 117 /*
 118  *  Status codes
 119  */
 120
 121 #define GOOD                 0x00
 122 #define CHECK_CONDITION      0x01
 123 #define CONDITION_GOOD       0x02
 124 #define BUSY                 0x04
 125 #define INTERMEDIATE_GOOD    0x08
 126 #define INTERMEDIATE_C_GOOD  0x0a
 127 #define RESERVATION_CONFLICT 0x0c
 128 #define COMMAND_TERMINATED   0x11
 129 #define QUEUE_FULL           0x14
 130
 131 #define STATUS_MASK          0x3e
 132
 133 /*
 134  *  SENSE KEYS
 135  */
 136
 137 #define NO_SENSE            0x00
 138 #define RECOVERED_ERROR     0x01
 139 #define NOT_READY           0x02
 140 #define MEDIUM_ERROR        0x03
 141 #define HARDWARE_ERROR      0x04
 142 #define ILLEGAL_REQUEST     0x05
 143 #define UNIT_ATTENTION      0x06
 144 #define DATA_PROTECT        0x07
 145 #define BLANK_CHECK         0x08
 146 #define COPY_ABORTED        0x0a
 147 #define ABORTED_COMMAND     0x0b
 148 #define VOLUME_OVERFLOW     0x0d
 149 #define MISCOMPARE          0x0e
 150
 151
 152 /*
 153  *  DEVICE TYPES
 154  */
 155
 156 #define TYPE_DISK           0x00
 157 #define TYPE_TAPE           0x01
 158 #define TYPE_PRINTER        0x02
 159 #define TYPE_PROCESSOR      0x03    /* HP scanners use this */
 160 #define TYPE_WORM           0x04    /* Treated as ROM by our system */
 161 #define TYPE_ROM            0x05
 162 #define TYPE_SCANNER        0x06
 163 #define TYPE_MOD            0x07    /* Magneto-optical disk -
 164                                      * - treated as TYPE_DISK */
 165 #define TYPE_MEDIUM_CHANGER 0x08
 166 #define TYPE_COMM           0x09    /* Communications device */
 167 #define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */
 168 #define TYPE_NO_LUN         0x7f
 169
 170 /*
 171  * standard mode-select header prepended to all mode-select commands
 172  *
 173  * moved here from cdrom.h -- kraxel
 174  */
 175
 176 struct ccs_modesel_head
 177 {
 178     uint8_t  _r1;    /* reserved */
 179     uint8_t  medium; /* device-specific medium type */
 180     uint8_t  _r2;    /* reserved */
 181     uint8_t  block_desc_length; /* block descriptor length */
 182     uint8_t  density; /* device-specific density code */
 183     uint8_t  number_blocks_hi; /* number of blocks in this block desc */
 184     uint8_t  number_blocks_med;
 185     uint8_t  number_blocks_lo;
 186     uint8_t  _r3;
 187     uint8_t  block_length_hi; /* block length for blocks in this desc */
 188     uint8_t  block_length_med;
 189     uint8_t  block_length_lo;
 190 };
 191
 192 /*
 193  *  MESSAGE CODES
 194  */
 195
 196 #define COMMAND_COMPLETE    0x00
 197 #define EXTENDED_MESSAGE    0x01
 198 #define     EXTENDED_MODIFY_DATA_POINTER    0x00
 199 #define     EXTENDED_SDTR                   0x01
 200 #define     EXTENDED_EXTENDED_IDENTIFY      0x02    /* SCSI-I only */
 201 #define     EXTENDED_WDTR                   0x03
 202 #define SAVE_POINTERS       0x02
 203 #define RESTORE_POINTERS    0x03
 204 #define DISCONNECT          0x04
 205 #define INITIATOR_ERROR     0x05
 206 #define ABORT               0x06
 207 #define MESSAGE_REJECT      0x07
 208 #define NOP                 0x08
 209 #define MSG_PARITY_ERROR    0x09
 210 #define LINKED_CMD_COMPLETE 0x0a
 211 #define LINKED_FLG_CMD_COMPLETE 0x0b
 212 #define BUS_DEVICE_RESET    0x0c
 213
 214 #define INITIATE_RECOVERY   0x0f            /* SCSI-II only */
 215 #define RELEASE_RECOVERY    0x10            /* SCSI-II only */
 216
 217 #define SIMPLE_QUEUE_TAG    0x20
 218 #define HEAD_OF_QUEUE_TAG   0x21
 219 #define ORDERED_QUEUE_TAG   0x22
 220
 221 /*
 222  * Here are some scsi specific ioctl commands which are sometimes useful.
 223  */
 224 /* These are a few other constants  only used by scsi  devices */
 225 /* Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 */
 226
 227 #define SCSI_IOCTL_GET_IDLUN 0x5382     /* conflicts with CDROMAUDIOBUFSIZ */
 228
 229 /* Used to turn on and off tagged queuing for scsi devices */
 230
 231 #define SCSI_IOCTL_TAGGED_ENABLE 0x5383
 232 #define SCSI_IOCTL_TAGGED_DISABLE 0x5384
 233
 234 /* Used to obtain the host number of a device. */
 235 #define SCSI_IOCTL_PROBE_HOST 0x5385
 236
 237 /* Used to get the bus number for a device */
 238 #define SCSI_IOCTL_GET_BUS_NUMBER 0x5386
 239
 240 /* Used to get the PCI location of a device */
 241 #define SCSI_IOCTL_GET_PCI 0x5387
 242
 243 /*
 244  * Overrides for Emacs so that we follow Linus's tabbing style.
 245  * Emacs will notice this stuff at the end of the file and automatically
 246  * adjust the settings for this buffer only.  This must remain at the end
 247  * of the file.
 248  * ---------------------------------------------------------------------------
 249  * Local variables:
 250  * c-indent-level: 4
 251  * c-brace-imaginary-offset: 0
 252  * c-brace-offset: -4
 253  * c-argdecl-indent: 4
 254  * c-label-offset: -4
 255  * c-continued-statement-offset: 4
 256  * c-continued-brace-offset: 0
 257  * indent-tabs-mode: nil
 258  * tab-width: 8
 259  * End:
 260  */
 261
 262 #endif