341 lines
6.4 KiB
C
341 lines
6.4 KiB
C
/*
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* SCSI general interface 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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* $Id: scsi_all.h,v 1.3 1994/03/29 04:29:27 mycroft Exp $
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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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#define SCSI_CMD_LUN 0xA0 /* these two should not be needed */
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#define SCSI_CMD_LUN_SHIFT 5 /* LUN in the cmd is no longer SCSI */
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struct scsi_generic
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{
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u_char opcode;
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u_char bytes[11];
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};
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struct scsi_test_unit_ready
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{
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u_char op_code;
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u_char byte2;
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u_char unused[3];
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u_char control;
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};
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struct scsi_send_diag
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{
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u_char op_code;
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u_char 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_char unused[1];
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u_char paramlen[2];
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u_char control;
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};
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struct scsi_sense
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{
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u_char op_code;
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u_char byte2;
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u_char unused[2];
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u_char length;
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u_char control;
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};
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struct scsi_inquiry
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{
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u_char op_code;
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u_char byte2;
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u_char unused[2];
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u_char length;
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u_char control;
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};
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struct scsi_mode_sense
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{
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u_char op_code;
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u_char byte2;
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#define SMS_DBD 0x08
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u_char 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_char unused;
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u_char length;
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u_char control;
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};
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struct scsi_mode_sense_big
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{
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u_char op_code;
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u_char byte2; /* same bits as small version */
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u_char page; /* same bits as small version */
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u_char unused[4];
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u_char length[2];
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u_char control;
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};
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struct scsi_mode_select
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{
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u_char op_code;
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u_char byte2;
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#define SMS_SP 0x01
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#define SMS_PF 0x10
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u_char unused[2];
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u_char length;
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u_char control;
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};
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struct scsi_mode_select_big
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{
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u_char op_code;
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u_char byte2; /* same bits as small version */
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u_char unused[5];
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u_char length[2];
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u_char control;
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};
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struct scsi_reserve
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{
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u_char op_code;
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u_char byte2;
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u_char unused[2];
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u_char length;
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u_char control;
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};
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struct scsi_release
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{
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u_char op_code;
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u_char byte2;
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u_char unused[2];
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u_char length;
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u_char control;
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};
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struct scsi_prevent
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{
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u_char op_code;
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u_char byte2;
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u_char unused[2];
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u_char how;
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u_char control;
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};
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#define PR_PREVENT 0x01
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#define PR_ALLOW 0x00
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struct scsi_changedef
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{
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u_char op_code;
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u_char byte2;
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u_char unused1;
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u_char how;
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u_char unused[4];
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u_char datalen;
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u_char 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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/*
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* Opcodes
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*/
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#define TEST_UNIT_READY 0x00
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#define REQUEST_SENSE 0x03
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#define INQUIRY 0x12
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#define MODE_SELECT 0x15
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#define MODE_SENSE 0x1a
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#define START_STOP 0x1b
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#define RESERVE 0x16
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#define RELEASE 0x17
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#define PREVENT_ALLOW 0x1e
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#define POSITION_TO_ELEMENT 0x2b
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#define CHANGE_DEFINITION 0x40
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#define MODE_SENSE_BIG 0x54
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#define MODE_SELECT_BIG 0x55
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#define MOVE_MEDIUM 0xa5
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#define READ_ELEMENT_STATUS 0xb8
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/*
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* sense data format
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*/
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#define T_DIRECT 0
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#define T_SEQUENTIAL 1
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#define T_PRINTER 2
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#define T_PROCESSOR 3
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#define T_WORM 4
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#define T_READONLY 5
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#define T_SCANNER 6
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#define T_OPTICAL 7
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#define T_NODEVICE 0x1F
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#define T_CHANGER 8
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#define T_COMM 9
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#define T_REMOV 1
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#define T_FIXED 0
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struct scsi_inquiry_data
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{
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u_char device;
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#define SID_TYPE 0x1F
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#define SID_QUAL 0xE0
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#define SID_QUAL_LU_OK 0x00
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#define SID_QUAL_LU_OFFLINE 0x20
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#define SID_QUAL_RSVD 0x40
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#define SID_QUAL_BAD_LU 0x60
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u_char dev_qual2;
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#define SID_QUAL2 0x7F
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#define SID_REMOVABLE 0x80
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u_char version;
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#define SID_ANSII 0x07
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#define SID_ECMA 0x38
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#define SID_ISO 0xC0
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u_char response_format;
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u_char additional_length;
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u_char unused[2];
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u_char flags;
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#define SID_SftRe 0x01
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#define SID_CmdQue 0x02
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#define SID_Linked 0x08
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#define SID_Sync 0x10
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#define SID_WBus16 0x20
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#define SID_WBus32 0x40
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#define SID_RelAdr 0x80
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char vendor[8];
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char product[16];
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char revision[4];
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u_char extra[8];
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};
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struct scsi_sense_data
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{
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/* 1*/ u_char error_code; /* same bits as new version */
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union
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{
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struct
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{
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/* 2*/ u_char blockhi;
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/* 3*/ u_char blockmed;
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/* 4*/ u_char blocklow;
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} unextended;
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struct
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{
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/* 2*/ u_char segment;
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/* 3*/ u_char flags; /* same bits as new version */
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/* 7*/ u_char info[4];
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/* 8*/ u_char extra_len;
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/* allocate enough room to hold new stuff
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( by increasing 16 to 24 below) */
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/*32*/ u_char extra_bytes[24];
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} extended;
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}ext;
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}; /* total of 32 bytes */
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struct scsi_sense_data_new
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{
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/* 1*/ u_char error_code;
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#define SSD_ERRCODE 0x7F
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#define SSD_ERRCODE_VALID 0x80
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union
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{
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struct /* this is deprecated, the standard says "DON'T"*/
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{
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/* 2*/ u_char blockhi;
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/* 3*/ u_char blockmed;
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/* 4*/ u_char blocklow;
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} unextended;
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struct
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{
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/* 2*/ u_char segment;
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/* 3*/ u_char flags;
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#define SSD_KEY 0x0F
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#define SSD_ILI 0x20
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#define SSD_EOM 0x40
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#define SSD_FILEMARK 0x80
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/* 7*/ u_char info[4];
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/* 8*/ u_char extra_len;
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/*12*/ u_char cmd_spec_info[4];
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/*13*/ u_char add_sense_code;
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/*14*/ u_char add_sense_code_qual;
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/*15*/ u_char fru;
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/*16*/ u_char sense_key_spec_1;
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#define SSD_SCS_VALID 0x80
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/*17*/ u_char sense_key_spec_2;
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/*18*/ u_char sense_key_spec_3;
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/*32*/ u_char extra_bytes[14];
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} extended;
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}ext;
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}; /* total of 32 bytes */
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struct blk_desc
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{
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u_char density;
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u_char nblocks[3];
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u_char reserved;
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u_char blklen[3];
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};
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struct scsi_mode_header
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{
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u_char data_length; /* Sense data length */
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u_char medium_type;
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u_char dev_spec;
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u_char blk_desc_len;
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};
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struct scsi_mode_header_big
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{
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u_char data_length[2]; /* Sense data length */
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u_char medium_type;
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u_char dev_spec;
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u_char unused[2];
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u_char 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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#endif /*_SCSI_SCSI_ALL_H*/
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