sys/dev/scsipi/scsipi_disk.h

   1 /*      $NetBSD: scsipi_disk.h,v 1.20 2007/07/01 05:17:28 tsutsui Exp $ */
   2
   3 /*
   4  * SCSI and SCSI-like interfaces description
   5  */
   6
   7 /*
   8  * Some lines of this file come from a file of the name "scsi.h"
   9  * distributed by OSF as part of mach2.5,
  10  *  so the following disclaimer has been kept.
  11  *
  12  * Copyright 1990 by Open Software Foundation,
  13  * Grenoble, FRANCE
  14  *
  15  *              All Rights Reserved
  16  *
  17  *   Permission to use, copy, modify, and distribute this software and
  18  * its documentation for any purpose and without fee is hereby granted,
  19  * provided that the above copyright notice appears in all copies and
  20  * that both the copyright notice and this permission notice appear in
  21  * supporting documentation, and that the name of OSF or Open Software
  22  * Foundation not be used in advertising or publicity pertaining to
  23  * distribution of the software without specific, written prior
  24  * permission.
  25  *
  26  *   OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
  27  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
  28  * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
  29  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  30  * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
  31  * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  32  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  33  */
  34
  35 /*
  36  * Largely written by Julian Elischer (julian@tfs.com)
  37  * for TRW Financial Systems.
  38  *
  39  * TRW Financial Systems, in accordance with their agreement with Carnegie
  40  * Mellon University, makes this software available to CMU to distribute
  41  * or use in any manner that they see fit as long as this message is kept with
  42  * the software. For this reason TFS also grants any other persons or
  43  * organisations permission to use or modify this software.
  44  *
  45  * TFS supplies this software to be publicly redistributed
  46  * on the understanding that TFS is not responsible for the correct
  47  * functioning of this software in any circumstances.
  48  *
  49  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
  50  */
  51
  52 #ifndef _DEV_SCSIPI_SCSIPI_DISK_H_
  53 #define _DEV_SCSIPI_SCSIPI_DISK_H_
  54
  55 /*
  56  * SCSI command format
  57  */
  58
  59 #define READ_10                 0x28
  60 #define WRITE_10                0x2a
  61 struct scsipi_rw_10 {
  62         u_int8_t opcode;
  63         u_int8_t byte2;
  64 #define SRWB_RELADDR    0x01    /* obsolete */
  65 #define SRWB_FUA_NV     0x02    /* force unit access non-volatile cache */
  66 #define SRWB_FUA        0x08    /* force unit access */
  67 #define SRWB_DPO        0x10    /* disable page out */
  68 #define SRWB_PROTECT(x) ((x) << 5)
  69         u_int8_t addr[4];
  70         u_int8_t reserved;
  71         u_int8_t length[2];
  72         u_int8_t control;
  73 } __packed;
  74
  75 #define READ_12                 0xa8
  76 #define WRITE_12                0xaa
  77 struct scsipi_rw_12 {
  78         u_int8_t opcode;
  79         u_int8_t byte2;         /* see scsipi_rw_big bits */
  80         u_int8_t addr[4];
  81         u_int8_t length[4];
  82         u_int8_t byte11;
  83         u_int8_t control;
  84 } __packed;
  85
  86 #define READ_16                 0x88
  87 #define WRITE_16                0x8a
  88 struct scsipi_rw_16 {
  89         u_int8_t opcode;
  90         u_int8_t byte2;         /* see scsipi_rw_big bits */
  91         u_int8_t addr[8];
  92         u_int8_t length[4];
  93         u_int8_t byte15;
  94         u_int8_t control;
  95 } __packed;
  96
  97 #define READ_CAPACITY_10        0x25
  98 struct scsipi_read_capacity_10 {
  99         u_int8_t opcode;
 100         u_int8_t byte2;
 101         u_int8_t addr[4];
 102         u_int8_t unused[3];
 103         u_int8_t control;
 104 } __packed;
 105
 106 /* DATAs definitions for the above commands */
 107
 108 struct scsipi_read_capacity_10_data {
 109         u_int8_t addr[4];
 110         u_int8_t length[4];
 111 } __packed;
 112
 113 #define READ_CAPACITY_16        0x9e    /* really SERVICE ACTION IN */
 114 struct scsipi_read_capacity_16 {
 115         u_int8_t opcode;
 116         u_int8_t byte2;
 117 #define SRC16_SERVICE_ACTION    0x10
 118         u_int8_t addr[8];
 119         u_int8_t len[4];
 120         u_int8_t byte15;
 121 #define SRC16_PMI               0x01
 122         u_int8_t control;
 123 } __packed;
 124
 125 struct scsipi_read_capacity_16_data {
 126         u_int8_t addr[8];
 127         u_int8_t length[4];
 128         u_int8_t byte13;
 129 #define SRC16D_PROT_EN          0x01
 130 #define SRC16D_RTO_EN           0x02
 131         u_int8_t reserved[19];
 132 } __packed;
 133
 134 /* XXX SBC-2 says this is vendor-specific */
 135 #define READ_FORMAT_CAPACITIES  0x23
 136 struct scsipi_read_format_capacities {
 137         u_int8_t opcode;
 138         u_int8_t byte2;
 139         u_int8_t reserved1[5];
 140         u_int8_t length[2];
 141         u_int8_t reserved2[3];
 142 } __packed;
 143
 144 struct scsipi_capacity_list_header {
 145         u_int8_t reserved[3];
 146         u_int8_t length;
 147 } __packed;
 148
 149 struct scsipi_capacity_descriptor {
 150         u_int8_t nblks[4];
 151         u_int8_t byte5;
 152         u_int8_t blklen[3];
 153 } __packed;
 154
 155 /* codes only valid in the current/maximum capacity descriptor */
 156 #define SCSIPI_CAP_DESC_CODE_MASK               0x3
 157 #define SCSIPI_CAP_DESC_CODE_RESERVED           0x0
 158 #define SCSIPI_CAP_DESC_CODE_UNFORMATTED        0x1
 159 #define SCSIPI_CAP_DESC_CODE_FORMATTED          0x2
 160 #define SCSIPI_CAP_DESC_CODE_NONE               0x3
 161
 162 #endif /* _DEV_SCSIPI_SCSIPI_DISK_H_ */