| 1 | /* $NetBSD: scsipi_disk.h,v 1.21 2007/12/25 18:33:42 perry 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 { |
| 145 | u_int8_t [3]; |
| 146 | u_int8_t ; |
| 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_ */ |
| 163 | |