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/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/*

 * This header file contains public constants and structures used by

 * the scsi code for linux.

 */

#ifndef _SCSI_SCSI_H

#define _SCSI_SCSI_H    1

#include <features.h>

/*

 *      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 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

/*

 *  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_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_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

  {

    unsigned char _r1;                  /* reserved.  */

    unsigned char medium;               /* device-specific medium type.  */

    unsigned char _r2;                  /* reserved.  */

    unsigned char block_desc_length;    /* block descriptor length.  */

    unsigned char density;              /* device-specific density code.  */

    unsigned char number_blocks_hi;     /* number of blocks in this block

                                           desc.  */

    unsigned char number_blocks_med;

    unsigned char number_blocks_lo;

    unsigned char _r3;

    unsigned char block_length_hi;      /* block length for blocks in this

                                           desc.  */

    unsigned char block_length_med;

    unsigned 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.  */

#define SCSI_IOCTL_GET_IDLUN 0x5382

/* 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

#endif /* scsi/scsi.h */