1 /* $NetBSD: scsi_all.h,v 1.12 1997/10/01 01:18:54 enami Exp $ */ 2 3 /* 4 * SCSI-specific insterface description. 5 */ 6 7 /* 8 * Largely written by Julian Elischer (julian@tfs.com) 9 * for TRW Financial Systems. 10 * 11 * TRW Financial Systems, in accordance with their agreement with Carnegie 12 * Mellon University, makes this software available to CMU to distribute 13 * or use in any manner that they see fit as long as this message is kept with 14 * the software. For this reason TFS also grants any other persons or 15 * organisations permission to use or modify this software. 16 * 17 * TFS supplies this software to be publicly redistributed 18 * on the understanding that TFS is not responsible for the correct 19 * functioning of this software in any circumstances. 20 * 21 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 22 */ 23 24 #ifndef _SCSI_SCSI_ALL_H 25 #define _SCSI_SCSI_ALL_H 1 26 27 /* 28 * SCSI command format 29 */ 30 31 /* 32 * Define dome bits that are in ALL (or a lot of) scsi commands 33 */ 34 #define SCSI_CTL_LINK 0x01 35 #define SCSI_CTL_FLAG 0x02 36 #define SCSI_CTL_VENDOR 0xC0 37 38 39 /* 40 * Some old SCSI devices need the LUN to be set in the top 3 bits of the 41 * second byte of the CDB. 42 */ 43 #define SCSI_CMD_LUN_MASK 0xe0 44 #define SCSI_CMD_LUN_SHIFT 5 45 46 /* 47 * XXX 48 * Actually some SCSI driver expects this structure to be 12 bytes, so 49 * don't change it unless you really know what you are doing 50 */ 51 52 struct scsi_generic { 53 u_int8_t opcode; 54 u_int8_t bytes[11]; 55 }; 56 57 /* XXX Is this a command ? What's its opcode ? */ 58 struct scsi_send_diag { 59 u_int8_t opcode; 60 u_int8_t byte2; 61 #define SSD_UOL 0x01 62 #define SSD_DOL 0x02 63 #define SSD_SELFTEST 0x04 64 #define SSD_PF 0x10 65 u_int8_t unused[1]; 66 u_int8_t paramlen[2]; 67 u_int8_t control; 68 }; 69 70 #define SCSI_MODE_SENSE 0x1a 71 struct scsi_mode_sense { 72 u_int8_t opcode; 73 u_int8_t byte2; 74 #define SMS_DBD 0x08 75 u_int8_t page; 76 #define SMS_PAGE_CODE 0x3F 77 #define SMS_PAGE_CTRL 0xC0 78 #define SMS_PAGE_CTRL_CURRENT 0x00 79 #define SMS_PAGE_CTRL_CHANGEABLE 0x40 80 #define SMS_PAGE_CTRL_DEFAULT 0x80 81 #define SMS_PAGE_CTRL_SAVED 0xC0 82 u_int8_t unused; 83 u_int8_t length; 84 u_int8_t control; 85 }; 86 87 #define SCSI_MODE_SENSE_BIG 0x54 88 struct scsi_mode_sense_big { 89 u_int8_t opcode; 90 u_int8_t byte2; /* same bits as small version */ 91 u_int8_t page; /* same bits as small version */ 92 u_int8_t unused[4]; 93 u_int8_t length[2]; 94 u_int8_t control; 95 }; 96 97 #define SCSI_MODE_SELECT 0x15 98 struct scsi_mode_select { 99 u_int8_t opcode; 100 u_int8_t byte2; 101 #define SMS_SP 0x01 102 #define SMS_PF 0x10 103 u_int8_t unused[2]; 104 u_int8_t length; 105 u_int8_t control; 106 }; 107 108 #define SCSI_MODE_SELECT_BIG 0x55 109 struct scsi_mode_select_big { 110 u_int8_t opcode; 111 u_int8_t byte2; /* same bits as small version */ 112 u_int8_t unused[5]; 113 u_int8_t length[2]; 114 u_int8_t control; 115 }; 116 117 #define SCSI_RESERVE 0x16 118 struct scsi_reserve { 119 u_int8_t opcode; 120 u_int8_t byte2; 121 u_int8_t unused[2]; 122 u_int8_t length; 123 u_int8_t control; 124 }; 125 126 #define SCSI_RELEASE 0x17 127 struct scsi_release { 128 u_int8_t opcode; 129 u_int8_t byte2; 130 u_int8_t unused[2]; 131 u_int8_t length; 132 u_int8_t control; 133 }; 134 135 #define SCSI_CHANGE_DEFINITION 0x40 136 struct scsi_changedef { 137 u_int8_t opcode; 138 u_int8_t byte2; 139 u_int8_t unused1; 140 u_int8_t how; 141 u_int8_t unused[4]; 142 u_int8_t datalen; 143 u_int8_t control; 144 }; 145 #define SC_SCSI_1 0x01 146 #define SC_SCSI_2 0x03 147 148 struct scsi_blk_desc { 149 u_int8_t density; 150 u_int8_t nblocks[3]; 151 u_int8_t reserved; 152 u_int8_t blklen[3]; 153 }; 154 155 struct scsi_mode_header { 156 u_int8_t data_length; /* Sense data length */ 157 u_int8_t medium_type; 158 u_int8_t dev_spec; 159 u_int8_t blk_desc_len; 160 }; 161 162 struct scsi_mode_header_big { 163 u_int8_t data_length[2]; /* Sense data length */ 164 u_int8_t medium_type; 165 u_int8_t dev_spec; 166 u_int8_t unused[2]; 167 u_int8_t blk_desc_len[2]; 168 }; 169 170 171 /* 172 * Status Byte 173 */ 174 #define SCSI_OK 0x00 175 #define SCSI_CHECK 0x02 176 #define SCSI_BUSY 0x08 177 #define SCSI_INTERM 0x10 178 #define SCSI_QUEUE_FULL 0x28 179 180 #endif /* _SCSI_SCSI_ALL_H */ 181