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#ifndef _LINUX_SCSI_H

#define _LINUX_SCSI_H

/*

 * This header file contains public constants and structures used by

 * the scsi code for linux.

 */

/*

    $Header: /home/marcus/revision_ctrl_test/oc_cvs/cvs/or1k/linux/linux-2.4/include/scsi/scsi.h,v 1.1.1.1 2004-04-15 02:34:58 phoenix Exp $

    For documentation on the OPCODES, MESSAGES, and SENSE values,

    please consult the SCSI standard.

*/

/*

 *      SCSI opcodes

 */

#define TEST_UNIT_READY       0x00

#define REZERO_UNIT           0x01

#define REQUEST_SENSE         0x03

#define FORMAT_UNIT           0x04

#define READ_BLOCK_LIMITS     0x05

#define REASSIGN_BLOCKS       0x07

#define READ_6                0x08

#define WRITE_6               0x0a

#define SEEK_6                0x0b

#define READ_REVERSE          0x0f

#define WRITE_FILEMARKS       0x10

#define SPACE                 0x11

#define INQUIRY               0x12

#define RECOVER_BUFFERED_DATA 0x14

#define MODE_SELECT           0x15

#define RESERVE               0x16

#define RELEASE               0x17

#define COPY                  0x18

#define ERASE                 0x19

#define MODE_SENSE            0x1a

#define START_STOP            0x1b

#define RECEIVE_DIAGNOSTIC    0x1c

#define SEND_DIAGNOSTIC       0x1d

#define ALLOW_MEDIUM_REMOVAL  0x1e

#define SET_WINDOW            0x24

#define READ_CAPACITY         0x25

#define READ_10               0x28

#define WRITE_10              0x2a

#define SEEK_10               0x2b

#define WRITE_VERIFY          0x2e

#define VERIFY                0x2f

#define SEARCH_HIGH           0x30

#define SEARCH_EQUAL          0x31

#define SEARCH_LOW            0x32

#define SET_LIMITS            0x33

#define PRE_FETCH             0x34

#define READ_POSITION         0x34

#define SYNCHRONIZE_CACHE     0x35

#define LOCK_UNLOCK_CACHE     0x36

#define READ_DEFECT_DATA      0x37

#define MEDIUM_SCAN           0x38

#define COMPARE               0x39

#define COPY_VERIFY           0x3a

#define WRITE_BUFFER          0x3b

#define READ_BUFFER           0x3c

#define UPDATE_BLOCK          0x3d

#define READ_LONG             0x3e

#define WRITE_LONG            0x3f

#define CHANGE_DEFINITION     0x40

#define WRITE_SAME            0x41

#define READ_TOC              0x43

#define LOG_SELECT            0x4c

#define LOG_SENSE             0x4d

#define MODE_SELECT_10        0x55

#define RESERVE_10            0x56

#define RELEASE_10            0x57

#define MODE_SENSE_10         0x5a

#define PERSISTENT_RESERVE_IN 0x5e

#define PERSISTENT_RESERVE_OUT 0x5f

#define REPORT_LUNS           0xa0

#define MOVE_MEDIUM           0xa5

#define READ_12               0xa8

#define WRITE_12              0xaa

#define WRITE_VERIFY_12       0xae

#define SEARCH_HIGH_12        0xb0

#define SEARCH_EQUAL_12       0xb1

#define SEARCH_LOW_12         0xb2

#define READ_ELEMENT_STATUS   0xb8

#define SEND_VOLUME_TAG       0xb6

#define WRITE_LONG_2          0xea

#define READ_16               0x88

#define WRITE_16              0x8a

#define SERVICE_ACTION_IN     0x9e

/* values for service action in */

#define SAI_READ_CAPACITY_16  0x10

#define SCSI_RETRY_10(c) ((c) == READ_6 || (c) == WRITE_6 || (c) == SEEK_6)

/*

 *  SCSI Architecture Model (SAM) Status codes. Taken from SAM-3 draft

 *  T10/1561-D Revision 4 Draft dated 7th November 2002.

 */

#define SAM_STAT_GOOD            0x00

#define SAM_STAT_CHECK_CONDITION 0x02

#define SAM_STAT_CONDITION_MET   0x04

#define SAM_STAT_BUSY            0x08

#define SAM_STAT_INTERMEDIATE    0x10

#define SAM_STAT_INTERMEDIATE_CONDITION_MET 0x14

#define SAM_STAT_RESERVATION_CONFLICT 0x18

#define SAM_STAT_COMMAND_TERMINATED 0x22        /* obsolete in SAM-3 */

#define SAM_STAT_TASK_SET_FULL   0x28

#define SAM_STAT_ACA_ACTIVE      0x30

#define SAM_STAT_TASK_ABORTED    0x40

/*

 *  Status codes

 */

#define GOOD                 0x00

#define CHECK_CONDITION      0x01

#define CONDITION_GOOD       0x02

#define BUSY                 0x04

#define INTERMEDIATE_GOOD    0x08

#define INTERMEDIATE_C_GOOD  0x0a

#define RESERVATION_CONFLICT 0x0c

#define COMMAND_TERMINATED   0x11

#define QUEUE_FULL           0x14

#define STATUS_MASK          0x3e

/*

 *  SENSE KEYS

 */

#define NO_SENSE            0x00

#define RECOVERED_ERROR     0x01

#define NOT_READY           0x02

#define MEDIUM_ERROR        0x03

#define HARDWARE_ERROR      0x04

#define ILLEGAL_REQUEST     0x05

#define UNIT_ATTENTION      0x06

#define DATA_PROTECT        0x07

#define BLANK_CHECK         0x08

#define COPY_ABORTED        0x0a

#define ABORTED_COMMAND     0x0b

#define VOLUME_OVERFLOW     0x0d

#define MISCOMPARE          0x0e

/*

 *  DEVICE TYPES

 */

#define TYPE_DISK           0x00

#define TYPE_TAPE           0x01

#define TYPE_PRINTER        0x02

#define TYPE_PROCESSOR      0x03    /* HP scanners use this */

#define TYPE_WORM           0x04    /* Treated as ROM by our system */

#define TYPE_ROM            0x05

#define TYPE_SCANNER        0x06

#define TYPE_MOD            0x07    /* Magneto-optical disk - 

                                     * - treated as TYPE_DISK */

#define TYPE_MEDIUM_CHANGER 0x08

#define TYPE_COMM           0x09    /* Communications device */

#define TYPE_ENCLOSURE      0x0d    /* Enclosure Services Device */

#define TYPE_NO_LUN         0x7f

/*

 * standard mode-select header prepended to all mode-select commands

 *

 * moved here from cdrom.h -- kraxel

 */

struct ccs_modesel_head

{

    u_char  _r1;    /* reserved */

    u_char  medium; /* device-specific medium type */

    u_char  _r2;    /* reserved */

    u_char  block_desc_length; /* block descriptor length */

    u_char  density; /* device-specific density code */

    u_char  number_blocks_hi; /* number of blocks in this block desc */

    u_char  number_blocks_med;

    u_char  number_blocks_lo;

    u_char  _r3;

    u_char  block_length_hi; /* block length for blocks in this desc */

    u_char  block_length_med;

    u_char  block_length_lo;

};

/*

 *  MESSAGE CODES

 */

#define COMMAND_COMPLETE    0x00

#define EXTENDED_MESSAGE    0x01

#define     EXTENDED_MODIFY_DATA_POINTER    0x00

#define     EXTENDED_SDTR                   0x01

#define     EXTENDED_EXTENDED_IDENTIFY      0x02    /* SCSI-I only */

#define     EXTENDED_WDTR                   0x03

#define SAVE_POINTERS       0x02

#define RESTORE_POINTERS    0x03

#define DISCONNECT          0x04

#define INITIATOR_ERROR     0x05

#define ABORT               0x06

#define MESSAGE_REJECT      0x07

#define NOP                 0x08

#define MSG_PARITY_ERROR    0x09

#define LINKED_CMD_COMPLETE 0x0a

#define LINKED_FLG_CMD_COMPLETE 0x0b

#define BUS_DEVICE_RESET    0x0c

#define INITIATE_RECOVERY   0x0f            /* SCSI-II only */

#define RELEASE_RECOVERY    0x10            /* SCSI-II only */

#define SIMPLE_QUEUE_TAG    0x20

#define HEAD_OF_QUEUE_TAG   0x21

#define ORDERED_QUEUE_TAG   0x22

/*

 * Here are some scsi specific ioctl commands which are sometimes useful.

 */

/* These are a few other constants  only used by scsi  devices */

/* Note that include/linux/cdrom.h also defines IOCTL 0x5300 - 0x5395 */

#define SCSI_IOCTL_GET_IDLUN 0x5382     /* conflicts with CDROMAUDIOBUFSIZ */

/* Used to turn on and off tagged queuing for scsi devices */

#define SCSI_IOCTL_TAGGED_ENABLE 0x5383

#define SCSI_IOCTL_TAGGED_DISABLE 0x5384

/* Used to obtain the host number of a device. */

#define SCSI_IOCTL_PROBE_HOST 0x5385

/* Used to get the bus number for a device */

#define SCSI_IOCTL_GET_BUS_NUMBER 0x5386

/* Used to get the PCI location of a device */

#define SCSI_IOCTL_GET_PCI 0x5387

/*

 * Overrides for Emacs so that we follow Linus's tabbing style.

 * Emacs will notice this stuff at the end of the file and automatically

 * adjust the settings for this buffer only.  This must remain at the end

 * of the file.

 * ---------------------------------------------------------------------------

 * Local variables:

 * c-indent-level: 4

 * c-brace-imaginary-offset: 0

 * c-brace-offset: -4

 * c-argdecl-indent: 4

 * c-label-offset: -4

 * c-continued-statement-offset: 4

 * c-continued-brace-offset: 0

 * indent-tabs-mode: nil

 * tab-width: 8

 * End:

 */

#endif