1 /* $NetBSD: scsipi_disk.h,v 1.9 2003/09/17 23:33:43 mycroft 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_BIG 0x28 60 #define WRITE_BIG 0x2a 61 struct scsipi_rw_big { 62 u_int8_t opcode; 63 u_int8_t byte2; 64 #define SRWB_RELADDR 0x01 65 #define SRWB_FUA 0x08 /* force unit access */ 66 #define SRWB_DPO 0x10 /* disable page out */ 67 u_int8_t addr[4]; 68 u_int8_t reserved; 69 u_int8_t length[2]; 70 u_int8_t control; 71 } __attribute__((packed)); 72 73 #define READ_CAPACITY 0x25 74 struct scsipi_read_capacity { 75 u_int8_t opcode; 76 u_int8_t byte2; 77 u_int8_t addr[4]; 78 u_int8_t unused[3]; 79 u_int8_t control; 80 } __attribute__((packed)); 81 82 /* DATAs definitions for the above commands */ 83 84 struct scsipi_read_cap_data { 85 u_int8_t addr[4]; 86 u_int8_t length[4]; 87 } __attribute__((packed)); 88 89 #define READ_FORMAT_CAPACITIES 0x23 90 struct scsipi_read_format_capacities { 91 u_int8_t opcode; 92 u_int8_t byte2; 93 u_int8_t reserved1[5]; 94 u_int8_t length[2]; 95 u_int8_t reserved2[3]; 96 } __attribute__((packed)); 97 98 struct scsipi_capacity_list_header { 99 u_int8_t reserved[3]; 100 u_int8_t length; 101 } __attribute__((packed)); 102 103 struct scsipi_capacity_descriptor { 104 u_int8_t nblks[4]; 105 u_int8_t byte5; 106 u_int8_t blklen[3]; 107 } __attribute__((packed)); 108 109 /* codes only valid in the current/maximum capacity descriptor */ 110 #define SCSIPI_CAP_DESC_CODE_MASK 0x3 111 #define SCSIPI_CAP_DESC_CODE_RESERVED 0x0 112 #define SCSIPI_CAP_DESC_CODE_UNFORMATTED 0x1 113 #define SCSIPI_CAP_DESC_CODE_FORMATTED 0x2 114 #define SCSIPI_CAP_DESC_CODE_NONE 0x3 115 116 #endif /* _DEV_SCSIPI_SCSIPI_DISK_H_ */ 117