316 lines
8.6 KiB
C
316 lines
8.6 KiB
C
/* $NetBSD: scsipi_all.h,v 1.18 2001/05/18 21:11:43 is Exp $ */
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/*
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* SCSI and SCSI-like 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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#ifndef _DEV_SCSIPI_SCSIPI_ALL_H_
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#define _DEV_SCSIPI_SCSIPI_ALL_H_
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/*
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* SCSI-like command format and opcode
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*/
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/*
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* Some basic, common SCSI command group definitions.
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*/
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#define CDB_GROUPID(cmd) ((cmd >> 5) & 0x7)
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#define CDB_GROUPID_0 0
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#define CDB_GROUPID_1 1
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#define CDB_GROUPID_2 2
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#define CDB_GROUPID_3 3
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#define CDB_GROUPID_4 4
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#define CDB_GROUPID_5 5
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#define CDB_GROUPID_6 6
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#define CDB_GROUPID_7 7
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#define CDB_GROUP0 6 /* 6-byte cdb's */
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#define CDB_GROUP1 10 /* 10-byte cdb's */
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#define CDB_GROUP2 10 /* 10-byte cdb's */
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#define CDB_GROUP3 0 /* reserved */
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#define CDB_GROUP4 16 /* 16-byte cdb's */
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#define CDB_GROUP5 12 /* 12-byte cdb's */
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#define CDB_GROUP6 0 /* vendor specific */
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#define CDB_GROUP7 0 /* vendor specific */
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/*
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* Some basic, common SCSI commands
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*/
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#define TEST_UNIT_READY 0x00
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struct scsipi_test_unit_ready {
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u_int8_t opcode;
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u_int8_t byte2;
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u_int8_t unused[3];
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u_int8_t control;
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};
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#define REQUEST_SENSE 0x03
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struct scsipi_sense {
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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 MODE_SENSE 0x1a
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struct scsipi_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 /* disable block descriptors */
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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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union {
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struct {
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u_int8_t unused;
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u_int8_t length;
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} scsi __attribute__((packed));
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struct {
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u_int8_t length[2];
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} atapi __attribute__((packed));
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} u_len;
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u_int8_t control;
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} __attribute__((packed));
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#define MODE_SENSE_BIG 0x5A
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struct scsipi_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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} __attribute__((packed));
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#define MODE_SELECT 0x15
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struct scsipi_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 /* save page */
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#define SMS_PF 0x10
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u_int8_t unused[2];
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union {
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struct {
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u_int8_t unused;
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u_int8_t length;
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} scsi __attribute__((packed));
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struct {
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u_int8_t length[2];
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} atapi __attribute__((packed));
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} u_len;
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u_int8_t control;
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} __attribute__((packed));
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#define MODE_SELECT_BIG 0x55
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struct scsipi_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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} __attribute__((packed));
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#define INQUIRY 0x12
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struct scsipi_inquiry {
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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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} __attribute__((packed));
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#define PREVENT_ALLOW 0x1e
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struct scsipi_prevent {
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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 how;
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u_int8_t control;
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} __attribute__((packed));
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#define PR_PREVENT 0x01
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#define PR_ALLOW 0x00
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/*
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* inquiry and sense data format
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*/
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struct scsipi_sense_data {
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/* 1*/ u_int8_t error_code;
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#define SSD_ERRCODE 0x7F
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#define SSD_ERRCODE_VALID 0x80
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/* 2*/ u_int8_t segment;
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/* 3*/ u_int8_t 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_int8_t info[4];
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/* 8*/ u_int8_t extra_len;
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/*12*/ u_int8_t cmd_spec_info[4];
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/*13*/ u_int8_t add_sense_code;
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/*14*/ u_int8_t add_sense_code_qual;
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/*15*/ u_int8_t fru;
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/*16*/ u_int8_t sense_key_spec_1;
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#define SSD_SCS_VALID 0x80
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/*17*/ u_int8_t sense_key_spec_2;
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/*18*/ u_int8_t sense_key_spec_3;
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/*32*/ u_int8_t extra_bytes[14];
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} __attribute__((packed));
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#define SKEY_NO_SENSE 0x00
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#define SKEY_RECOVERED_ERROR 0x01
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#define SKEY_NOT_READY 0x02
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#define SKEY_MEDIUM_ERROR 0x03
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#define SKEY_HARDWARE_ERROR 0x04
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#define SKEY_ILLEGAL_REQUEST 0x05
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#define SKEY_UNIT_ATTENTION 0x06
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#define SKEY_WRITE_PROTECT 0x07
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#define SKEY_BLANK_CHECK 0x08
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#define SKEY_VENDOR_UNIQUE 0x09
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#define SKEY_COPY_ABORTED 0x0A
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#define SKEY_ABORTED_COMMAND 0x0B
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#define SKEY_EQUAL 0x0C
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#define SKEY_VOLUME_OVERFLOW 0x0D
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#define SKEY_MISCOMPARE 0x0E
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#define SKEY_RESERVED 0x0F
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/*
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* Sense bytes described by the extra_len tag start at cmd_spec_info,
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* and can only continue up to the end of the structure we've defined
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* (which is too short for some cases).
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*/
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#define ADD_BYTES_LIM(sp) \
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((((int)(sp)->extra_len) < (int) sizeof(struct scsipi_sense_data) - 8)? \
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((sp)->extra_len) : (sizeof (struct scsipi_sense_data) - 8))
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struct scsipi_sense_data_unextended {
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/* 1*/ u_int8_t error_code;
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/* 4*/ u_int8_t block[3];
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} __attribute__((packed));
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#define T_REMOV 1 /* device is removable */
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#define T_FIXED 0 /* device is not removable */
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/*
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* According to SPC-2r16, in order to know if a U3W device support PPR,
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* Inquiry Data structure should be at least 57 Bytes
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*/
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struct scsipi_inquiry_data {
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/* 1*/ u_int8_t device;
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#define SID_TYPE 0x1f /* device type mask */
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#define SID_QUAL 0xe0 /* device qualifier mask */
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#define SID_QUAL_LU_PRESENT 0x00 /* logical unit present */
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#define SID_QUAL_LU_NOTPRESENT 0x20 /* logical unit not present */
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#define SID_QUAL_reserved 0x40
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#define SID_QUAL_LU_NOT_SUPP 0x60 /* logical unit not supported */
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#define T_DIRECT 0x00 /* direct access device */
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#define T_SEQUENTIAL 0x01 /* sequential access device */
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#define T_PRINTER 0x02 /* printer device */
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#define T_PROCESSOR 0x03 /* processor device */
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#define T_WORM 0x04 /* write once, read many device */
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#define T_CDROM 0x05 /* cd-rom device */
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#define T_SCANNER 0x06 /* scanner device */
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#define T_OPTICAL 0x07 /* optical memory device */
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#define T_CHANGER 0x08 /* medium changer device */
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#define T_COMM 0x09 /* communication device */
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#define T_IT8_1 0x0a /* Defined by ASC IT8... */
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#define T_IT8_2 0x0b /* ...(Graphic arts pre-press devices) */
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#define T_STORARRAY 0x0c /* storage array device */
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#define T_ENCLOSURE 0x0d /* enclosure services device */
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#define T_SIMPLE_DIRECT 0x0E /* Simplified direct-access device */
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#define T_OPTIC_CARD_RW 0x0F /* Optical card reader/writer device */
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#define T_OBJECT_STORED 0x11 /* Object-based Storage Device */
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#define T_NODEVICE 0x1f
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u_int8_t dev_qual2;
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#define SID_QUAL2 0x7F
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#define SID_REMOVABLE 0x80
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/* 3*/ u_int8_t 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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/* 4*/ u_int8_t response_format;
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#define SID_RespDataFmt 0x0F
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#define SID_FORMAT_SCSI1 0x00 /* SCSI-1 format */
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#define SID_FORMAT_CCS 0x01 /* SCSI CCS format */
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#define SID_FORMAT_ISO 0x02 /* ISO format */
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/* 5*/ u_int8_t additional_length; /* n-4 */
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/* 6*/ u_int8_t flags1;
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#define SID_SCC 0x80
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/* 7*/ u_int8_t flags2;
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#define SID_Addr16 0x01
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#define SID_MChngr 0x08
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#define SID_MultiPort 0x10
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#define SID_EncServ 0x40
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#define SID_BasQue 0x80
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/* 8*/ u_int8_t flags3;
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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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/* 9*/ char vendor[8];
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/*17*/ char product[16];
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/*33*/ char revision[4];
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/*37*/ u_int8_t vendor_specific[20];
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/*57*/ u_int8_t flags4;
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#define SID_IUS 0x01
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#define SID_QAS 0x02
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#define SID_Clocking 0x0C
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#define SID_CLOCKING_ST_ONLY 0x00
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#define SID_CLOCKING_DT_ONLY 0x04
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#define SID_CLOCKING_SD_DT 0x0C
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/*58*/ u_int8_t reserved;
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/*59*/ char version_descriptor[8][2];
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} __attribute__((packed)); /* 74 Bytes */
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/* Data structures for mode select/mode sense */
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struct scsipi_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; /* unused on ATAPI */
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} __attribute__((packed));
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struct scsipi_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]; /* unused on ATAPI */
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u_int8_t blk_desc_len[2]; /* unused on ATAPI */
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} __attribute__((packed));
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#endif /* _DEV_SCSIPI_SCSIPI_ALL_H_ */
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