181 lines
3.8 KiB
C
181 lines
3.8 KiB
C
/* $NetBSD: scsi_all.h,v 1.12 1997/10/01 01:18:54 enami Exp $ */
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/*
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* SCSI-specific insterface description.
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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 _SCSI_SCSI_ALL_H
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#define _SCSI_SCSI_ALL_H 1
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/*
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* SCSI command format
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*/
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/*
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* Define dome bits that are in ALL (or a lot of) scsi commands
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*/
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#define SCSI_CTL_LINK 0x01
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#define SCSI_CTL_FLAG 0x02
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#define SCSI_CTL_VENDOR 0xC0
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/*
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* Some old SCSI devices need the LUN to be set in the top 3 bits of the
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* second byte of the CDB.
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*/
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#define SCSI_CMD_LUN_MASK 0xe0
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#define SCSI_CMD_LUN_SHIFT 5
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/*
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* XXX
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* Actually some SCSI driver expects this structure to be 12 bytes, so
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* don't change it unless you really know what you are doing
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*/
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struct scsi_generic {
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u_int8_t opcode;
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u_int8_t bytes[11];
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};
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/* XXX Is this a command ? What's its opcode ? */
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struct scsi_send_diag {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SSD_UOL 0x01
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#define SSD_DOL 0x02
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#define SSD_SELFTEST 0x04
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#define SSD_PF 0x10
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u_int8_t unused[1];
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u_int8_t paramlen[2];
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u_int8_t control;
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};
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#define SCSI_MODE_SENSE 0x1a
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struct scsi_mode_sense {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SMS_DBD 0x08
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u_int8_t page;
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#define SMS_PAGE_CODE 0x3F
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#define SMS_PAGE_CTRL 0xC0
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#define SMS_PAGE_CTRL_CURRENT 0x00
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#define SMS_PAGE_CTRL_CHANGEABLE 0x40
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#define SMS_PAGE_CTRL_DEFAULT 0x80
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#define SMS_PAGE_CTRL_SAVED 0xC0
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u_int8_t unused;
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_MODE_SENSE_BIG 0x54
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struct scsi_mode_sense_big {
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u_int8_t opcode;
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u_int8_t byte2; /* same bits as small version */
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u_int8_t page; /* same bits as small version */
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u_int8_t unused[4];
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u_int8_t length[2];
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u_int8_t control;
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};
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#define SCSI_MODE_SELECT 0x15
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struct scsi_mode_select {
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u_int8_t opcode;
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u_int8_t byte2;
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#define SMS_SP 0x01
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#define SMS_PF 0x10
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u_int8_t unused[2];
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_MODE_SELECT_BIG 0x55
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struct scsi_mode_select_big {
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u_int8_t opcode;
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u_int8_t byte2; /* same bits as small version */
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u_int8_t unused[5];
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u_int8_t length[2];
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u_int8_t control;
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};
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#define SCSI_RESERVE 0x16
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struct scsi_reserve {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[2];
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_RELEASE 0x17
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struct scsi_release {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[2];
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u_int8_t length;
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u_int8_t control;
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};
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#define SCSI_CHANGE_DEFINITION 0x40
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struct scsi_changedef {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused1;
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u_int8_t how;
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u_int8_t unused[4];
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u_int8_t datalen;
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u_int8_t control;
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};
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#define SC_SCSI_1 0x01
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#define SC_SCSI_2 0x03
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struct scsi_blk_desc {
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u_int8_t density;
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u_int8_t nblocks[3];
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u_int8_t reserved;
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u_int8_t blklen[3];
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};
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struct scsi_mode_header {
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u_int8_t data_length; /* Sense data length */
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u_int8_t medium_type;
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u_int8_t dev_spec;
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u_int8_t blk_desc_len;
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};
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struct scsi_mode_header_big {
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u_int8_t data_length[2]; /* Sense data length */
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u_int8_t medium_type;
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u_int8_t dev_spec;
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u_int8_t unused[2];
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u_int8_t blk_desc_len[2];
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};
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/*
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* Status Byte
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*/
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#define SCSI_OK 0x00
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#define SCSI_CHECK 0x02
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#define SCSI_BUSY 0x08
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#define SCSI_INTERM 0x10
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#define SCSI_QUEUE_FULL 0x28
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#endif /* _SCSI_SCSI_ALL_H */
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