167 lines
4.6 KiB
C
167 lines
4.6 KiB
C
/* $NetBSD: scsipi_disk.h,v 1.23 2017/11/04 21:02:37 jdolecek Exp $ */
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/*
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* SCSI and SCSI-like interfaces description
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*/
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/*
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* Some lines of this file come from a file of the name "scsi.h"
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* distributed by OSF as part of mach2.5,
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* so the following disclaimer has been kept.
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*
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* Copyright 1990 by Open Software Foundation,
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* Grenoble, FRANCE
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation, and that the name of OSF or Open Software
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* Foundation not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission.
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*
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* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
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* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
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* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Largely written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*/
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#ifndef _DEV_SCSIPI_SCSIPI_DISK_H_
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#define _DEV_SCSIPI_SCSIPI_DISK_H_
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/*
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* SCSI command format
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*/
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#define READ_10 0x28
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#define WRITE_10 0x2a
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struct scsipi_rw_10 {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SRWB_RELADDR 0x01 /* obsolete */
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#define SRWB_FUA_NV 0x02 /* force unit access non-volatile cache (SCSI-3) */
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#define SRWB_RESV2 0x04 /* reserved (SCSI-2) */
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#define SRWB_FUA 0x08 /* force unit access volatile cache (SCSI-2) */
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#define SRWB_DPO 0x10 /* disable page out (SCSI-2) */
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#define SRWB_PROTECT(x) ((x) << 5)
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u_int8_t addr[4];
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u_int8_t reserved;
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u_int8_t length[2];
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u_int8_t control;
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} __packed;
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#define READ_12 0xa8
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#define WRITE_12 0xaa
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struct scsipi_rw_12 {
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u_int8_t opcode;
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u_int8_t byte2; /* see scsipi_rw_10 bits */
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u_int8_t addr[4];
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u_int8_t length[4];
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u_int8_t byte11;
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u_int8_t control;
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} __packed;
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#define READ_16 0x88
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#define WRITE_16 0x8a
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struct scsipi_rw_16 {
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u_int8_t opcode;
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u_int8_t byte2; /* see scsipi_rw_10 bits */
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u_int8_t addr[8];
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u_int8_t length[4];
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u_int8_t byte15;
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u_int8_t control;
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} __packed;
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#define READ_CAPACITY_10 0x25
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struct scsipi_read_capacity_10 {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t addr[4];
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u_int8_t unused[3];
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u_int8_t control;
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} __packed;
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/* DATAs definitions for the above commands */
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struct scsipi_read_capacity_10_data {
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u_int8_t addr[4];
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u_int8_t length[4];
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} __packed;
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#define READ_CAPACITY_16 0x9e /* really SERVICE ACTION IN */
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struct scsipi_read_capacity_16 {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SRC16_SERVICE_ACTION 0x10
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u_int8_t addr[8];
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u_int8_t len[4];
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u_int8_t byte15;
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#define SRC16_PMI 0x01
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u_int8_t control;
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} __packed;
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struct scsipi_read_capacity_16_data {
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u_int8_t addr[8];
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u_int8_t length[4];
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u_int8_t byte13;
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#define SRC16D_PROT_EN 0x01
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#define SRC16D_RTO_EN 0x02
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u_int8_t reserved[19];
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} __packed;
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/* XXX SBC-2 says this is vendor-specific */
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#define READ_FORMAT_CAPACITIES 0x23
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struct scsipi_read_format_capacities {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t reserved1[5];
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u_int8_t length[2];
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u_int8_t reserved2[3];
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} __packed;
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struct scsipi_capacity_list_header {
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u_int8_t reserved[3];
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u_int8_t length;
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} __packed;
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struct scsipi_capacity_descriptor {
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u_int8_t nblks[4];
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u_int8_t byte5;
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u_int8_t blklen[3];
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} __packed;
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/* codes only valid in the current/maximum capacity descriptor */
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#define SCSIPI_CAP_DESC_CODE_MASK 0x3
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#define SCSIPI_CAP_DESC_CODE_RESERVED 0x0
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#define SCSIPI_CAP_DESC_CODE_UNFORMATTED 0x1
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#define SCSIPI_CAP_DESC_CODE_FORMATTED 0x2
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#define SCSIPI_CAP_DESC_CODE_NONE 0x3
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/* defines for the device specific byte in the mode select/sense header */
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#define SMH_DSP_DPOFUA 0x10
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#endif /* _DEV_SCSIPI_SCSIPI_DISK_H_ */
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