From f07a4c844da9f0ecae5bbee1ab94be56505f26f7 Mon Sep 17 00:00:00 2001 From: Thomas Bushnell Date: Tue, 25 Feb 1997 21:28:37 +0000 Subject: Initial source --- scsi/scsi.h | 599 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 599 insertions(+) create mode 100644 scsi/scsi.h (limited to 'scsi/scsi.h') diff --git a/scsi/scsi.h b/scsi/scsi.h new file mode 100644 index 0000000..9aa0bee --- /dev/null +++ b/scsi/scsi.h @@ -0,0 +1,599 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * File: scsi.h + * Author: Alessandro Forin, Carnegie Mellon University + * Date: 9/90 + * + * Definitions of the SCSI-1 Standard + */ + +#ifndef _SCSI_SCSI_H_ +#define _SCSI_SCSI_H_ + +#include +#include + +/* + * Bus phases + */ + +#define SCSI_IO 0x01 /* Input/Output */ +#define SCSI_CD 0x02 /* Command/Data */ +#define SCSI_MSG 0x04 /* Message */ + +#define SCSI_PHASE_MASK 0x07 +#define SCSI_PHASE(x) ((x)&SCSI_PHASE_MASK) + +#define SCSI_PHASE_DATAO 0x00 /* 0 */ +#define SCSI_PHASE_DATAI SCSI_IO /* 1 */ +#define SCSI_PHASE_CMD SCSI_CD /* 2 */ +#define SCSI_PHASE_STATUS (SCSI_CD|SCSI_IO) /* 3 */ + /* 4..5 ANSI reserved */ +#define SCSI_PHASE_MSG_OUT (SCSI_MSG|SCSI_CD) /* 6 */ +#define SCSI_PHASE_MSG_IN (SCSI_MSG|SCSI_CD|SCSI_IO) /* 7 */ + +/* + * Single byte messages + * + * originator: I-nitiator T-arget + * T-support: M-andatory O-ptional + */ + +#define SCSI_COMMAND_COMPLETE 0x00 /* M T */ +#define SCSI_EXTENDED_MESSAGE 0x01 /* IT */ +#define SCSI_SAVE_DATA_POINTER 0x02 /* O T */ +#define SCSI_RESTORE_POINTERS 0x03 /* O T */ +#define SCSI_DISCONNECT 0x04 /* O T */ +#define SCSI_I_DETECTED_ERROR 0x05 /* M I */ +#define SCSI_ABORT 0x06 /* M I */ +#define SCSI_MESSAGE_REJECT 0x07 /* M IT */ +#define SCSI_NOP 0x08 /* M I */ +#define SCSI_MSG_PARITY_ERROR 0x09 /* M I */ +#define SCSI_LNKD_CMD_COMPLETE 0x0a /* O T */ +#define SCSI_LNKD_CMD_COMPLETE_F 0x0b /* O T */ +#define SCSI_BUS_DEVICE_RESET 0x0c /* M I */ + /* 0x0d..0x11 scsi2 */ + /* 0x12..0x1f reserved */ +#define SCSI_IDENTIFY 0x80 /* IT */ +# define SCSI_IFY_ENABLE_DISCONNECT 0x40 /* I */ +# define SCSI_IFY_LUNTAR 0x20 /* IT */ +# define SCSI_IFY_LUN_MASK 0x07 /* IT */ + + +/* Message codes 0x30..0x7f are reserved */ + +/* + * Extended messages, codes and formats + */ + +#define SCSI_MODIFY_DATA_PTR 0x00 /* T */ +typedef struct { + unsigned char xtn_msg_tag; /* const 0x01 */ + unsigned char xtn_msg_len; /* const 0x05 */ + unsigned char xtn_msg_code; /* const 0x00 */ + unsigned char xtn_msg_arg_1000; /* MSB, signed 2cmpl */ + unsigned char xtn_msg_arg_0200; + unsigned char xtn_msg_arg_0030; + unsigned char xtn_msg_arg_0004; /* LSB */ +} scsi_mod_ptr_t; + +#define SCSI_SYNC_XFER_REQUEST 0x01 /* IT */ +typedef struct { + unsigned char xtn_msg_tag; /* const 0x01 */ + unsigned char xtn_msg_len; /* const 0x03 */ + unsigned char xtn_msg_code; /* const 0x01 */ + unsigned char xtn_msg_xfer_period; /* times 4nsecs */ + unsigned char xtn_msg_xfer_offset; /* pending ack window */ +#define SCSI_SYNCH_XFER_OFFANY 0xff /* T unlimited */ +} scsi_synch_xfer_req_t; + +#define SCSI_XTN_IDENTIFY 0x02 /* IT -2 */ +typedef struct { + unsigned char xtn_msg_tag; /* const 0x01 */ + unsigned char xtn_msg_len; /* const 0x02 */ + unsigned char xtn_msg_code; /* const 0x02 */ + unsigned char xtn_msg_sublun; +} scsi_xtn_identify_t; + + /* 0x03..0x7f reserved */ + +#define SCSI_XTN_VENDOR_UQE 0x80 /* vendor unique bit */ +typedef struct { + unsigned char xtn_msg_tag; /* const 0x01 */ + unsigned char xtn_msg_len; /* args' len+1 (0-->256)*/ + unsigned char xtn_msg_code; /* const 0x80..0xff */ + unsigned char xtn_msg_args[1]; /* 0..255 bytes */ +} scsi_xtn_vedor_unique_t; + + +/* + * Commands, generic structures + */ + +/* SIX byte commands */ +typedef struct { + unsigned char scsi_cmd_code; /* group(7..5) and command(4..1) */ +#define SCSI_CODE_GROUP 0xe0 +#define SCSI_CODE_CMD 0x1f + unsigned char scsi_cmd_lun_and_lba1; /* lun(7..5) and block# msb[20..16] */ +#define SCSI_LUN_MASK 0xe0 +#define SCSI_LBA_MASK 0x1f +#define SCSI_LUN_SHIFT 5 + unsigned char scsi_cmd_lba2; /* block#[15.. 8] */ + unsigned char scsi_cmd_lba3; /* block#[ 7.. 0] */ + unsigned char scsi_cmd_xfer_len; /* if required */ + unsigned char scsi_cmd_ctrl_byte; /* contains: */ +#define SCSI_CTRL_VUQ 0xc0 /* vendor unique bits */ +#define SCSI_CTRL_RESVD 0x3c /* reserved, mbz */ +#define SCSI_CTRL_FLAG 0x02 /* send a complete_with_flag at end */ +#define SCSI_CTRL_LINK 0x01 /* link this command with next */ +} scsi_command_group_0; + +/* TEN byte commands */ +typedef struct { + unsigned char scsi_cmd_code; /* group(7..5) and command(4..1) */ + unsigned char scsi_cmd_lun_and_relbit;/* lun(7..5) and RelAdr(0) */ +#define SCSI_RELADR 0x01 + unsigned char scsi_cmd_lba1; /* block#[31..24] */ + unsigned char scsi_cmd_lba2; /* block#[23..16] */ + unsigned char scsi_cmd_lba3; /* block#[15.. 8] */ + unsigned char scsi_cmd_lba4; /* block#[ 7.. 0] */ + unsigned char scsi_cmd_xxx; /* reserved, mbz */ + unsigned char scsi_cmd_xfer_len_1; /* if required */ + unsigned char scsi_cmd_xfer_len_2; /* if required */ + unsigned char scsi_cmd_ctrl_byte; /* see above */ +} scsi_command_group_1, + scsi_command_group_2; + +/* TWELVE byte commands */ +typedef struct { + unsigned char scsi_cmd_code; /* group(7..5) and command(4..1) */ + unsigned char scsi_cmd_lun_and_relbit;/* lun(7..5) and RelAdr(0) */ + unsigned char scsi_cmd_lba1; /* block#[31..24] */ + unsigned char scsi_cmd_lba2; /* block#[23..16] */ + unsigned char scsi_cmd_lba3; /* block#[15.. 8] */ + unsigned char scsi_cmd_lba4; /* block#[ 7.. 0] */ + unsigned char scsi_cmd_xfer_len_1; /* if required */ + unsigned char scsi_cmd_xfer_len_2; /* if required */ + unsigned char scsi_cmd_xfer_len_3; /* if required */ + unsigned char scsi_cmd_xfer_len_4; /* if required */ + unsigned char scsi_cmd_xxx1; /* reserved, mbz */ + unsigned char scsi_cmd_ctrl_byte; /* see above */ +} scsi_command_group_5; + + +/* + * Commands, codes and aliases + */ + + /* GROUP 0 */ +#define SCSI_CMD_TEST_UNIT_READY 0x00 /* O all 2M all */ +#define scsi_cmd_test_unit_ready_t scsi_command_group_0 + +#define SCSI_CMD_REZERO_UNIT 0x01 /* O disk worm rom */ +#define SCSI_CMD_REWIND 0x01 /* M tape */ +#define scsi_cmd_rewind_t scsi_command_group_0 +#define scsi_cmd_rezero_t scsi_command_group_0 +# define SCSI_CMD_REW_IMMED 0x01 + + /* 0x02 vendor unique */ + +#define SCSI_CMD_REQUEST_SENSE 0x03 /* M all */ +#define scsi_cmd_request_sense_t scsi_command_group_0 +# define scsi_cmd_allocation_length scsi_cmd_xfer_len + +#define SCSI_CMD_FORMAT_UNIT 0x04 /* M disk O prin */ +#define scsi_cmd_format_t scsi_command_group_0 +# define SCSI_CMD_FMT_FMTDATA 0x10 +# define SCSI_CMD_FMT_CMPLIST 0x08 +# define SCSI_CMD_FMT_LIST_TYPE 0x07 +# define scsi_cmd_intleave1 scsi_cmd_lba3 +# define scsi_cmd_intleave2 scsi_cmd_xfer_len + +#define SCSI_CMD_READ_BLOCK_LIMITS 0x05 /* E tape */ +#define scsi_cmd_block_limits_t scsi_command_group_0 + + /* 0x06 vendor unique */ + +#define SCSI_CMD_REASSIGN_BLOCKS 0x07 /* O disk worm */ +#define scsi_cmd_reassign_blocks_t scsi_command_group_0 + +#define SCSI_CMD_READ 0x08 /* M disk tape O worm rom */ +#define SCSI_CMD_RECEIVE 0x08 /* O proc */ +#define SCSI_CMD_GET_MESSAGE 0x08 /* M comm */ +#define scsi_cmd_read_t scsi_command_group_0 +# define SCSI_CMD_TP_FIXED 0x01 /* tape */ +# define scsi_cmd_tp_len1 scsi_cmd_lba2 +# define scsi_cmd_tp_len2 scsi_cmd_lba3 +# define scsi_cmd_tp_len3 scsi_cmd_xfer_len + /* largest addressable blockno */ +#define SCSI_CMD_READ_MAX_LBA ((1 << 21) - 1) + + /* 0x09 vendor unique */ + +#define SCSI_CMD_WRITE 0x0a /* M disk tape O worm */ +#define SCSI_CMD_PRINT 0x0a /* M prin */ +#define SCSI_CMD_SEND 0x0a /* M proc */ +#define SCSI_CMD_SEND_MESSAGE 0x0a /* M comm */ +#define scsi_cmd_write_t scsi_command_group_0 + +#define SCSI_CMD_SEEK 0x0b /* O disk worm rom */ +#define SCSI_CMD_TRACK_SELECT 0x0b /* O tape */ +#define SCSI_CMD_SLEW_AND_PRINT 0x0b /* O prin */ +#define scsi_cmd_seek_t scsi_command_group_0 +# define SCSI_CMD_SLW_CHANNEL 0x01 +# define scsi_cmd_tp_trackno scsi_cmd_xfer_len +# define scsi_cmd_slew_value scsi_cmd_lba2 + + /* 0x0c..0x0e vendor unique */ + +#define SCSI_CMD_READ_REVERSE 0x0f /* O tape */ +#define scsi_cmd_rev_read_t scsi_command_group_0 + +#define SCSI_CMD_WRITE_FILEMARKS 0x10 /* M tape */ +#define SCSI_CMD_FLUSH_BUFFER 0x10 /* M prin */ +#define scsi_cmd_write_fil_t scsi_command_group_0 + +#define SCSI_CMD_SPACE 0x11 /* O tape */ +#define scsi_cmd_space_t scsi_command_group_0 +# define SCSI_CMD_SP_BLOCKS 0x00 +# define SCSI_CMD_SP_FIL 0x01 +# define SCSI_CMD_SP_SEQ_FIL 0x02 +# define SCSI_CMD_SP_EOT 0x03 + +#define SCSI_CMD_INQUIRY 0x12 /* E all (2M all) */ +#define scsi_cmd_inquiry_t scsi_command_group_0 +# define SCSI_CMD_INQ_EVPD 0x01 /* 2 */ +# define scsi_cmd_page_code scsi_cmd_lba2 /* 2 */ + +#define SCSI_CMD_VERIFY_0 0x13 /* O tape */ +#define scsi_cmd_verify_t scsi_command_group_0 +# define SCSI_CMD_VFY_BYTCMP 0x02 + +#define SCSI_CMD_RECOVER_BUFFERED_DATA 0x14 /* O tape prin */ +#define scsi_cmd_recover_buffer_t scsi_command_group_0 + +#define SCSI_CMD_MODE_SELECT 0x15 /* O disk tape prin worm rom */ +# define SCSI_CMD_MSL_PF 0x10 +# define SCSI_CMD_MSL_SP 0x01 +#define scsi_cmd_mode_select_t scsi_command_group_0 + +#define SCSI_CMD_RESERVE 0x16 /* O disk tape prin worm rom */ +#define scsi_cmd_reserve_t scsi_command_group_0 +# define SCSI_CMD_RES_3RDPTY 0x10 +# define SCSI_CMD_RES_3RDPTY_DEV 0x0e +# define SCSI_CMD_RES_EXTENT 0x01 +# define scsi_cmd_reserve_id scsi_cmd_lba2 +# define scsi_cmd_extent_llen1 scsi_cmd_lba3 +# define scsi_cmd_extent_llen2 scsi_cmd_xfer_len + +#define SCSI_CMD_RELEASE 0x17 /* O disk tape prin worm rom */ +#define scsi_cmd_release_t scsi_command_group_0 + +#define SCSI_CMD_COPY 0x18 /* O all */ +#define scsi_cmd_copy_t scsi_command_group_0 +# define SCSI_CMD_CPY_PAD 0x01 /* 2 */ +# define scsi_cmd_paraml_len0 scsi_cmd_lba2 +# define scsi_cmd_paraml_len1 scsi_cmd_lba3 +# define scsi_cmd_paraml_len2 scsi_cmd_xfer_len + +#define SCSI_CMD_ERASE 0x19 /* O tape */ +#define scsi_cmd_erase_t scsi_command_group_0 +# define SCSI_CMD_ER_LONG 0x01 + +#define SCSI_CMD_MODE_SENSE 0x1a /* O disk tape prin worm rom */ +#define scsi_cmd_mode_sense_t scsi_command_group_0 +# define scsi_cmd_ms_pagecode scsi_cmd_lba2 + +#define SCSI_CMD_START_STOP_UNIT 0x1b /* O disk prin worm rom */ +#define SCSI_CMD_LOAD_UNLOAD 0x1b /* O tape */ +#define scsi_cmd_start_t scsi_command_group_0 +# define SCSI_CMD_SS_IMMED 0x01 +# define scsi_cmd_ss_flags scsi_cmd_xfer_len +# define SCSI_CMD_SS_START 0x01 +# define SCSI_CMD_SS_RETEN 0x02 +# define SCSI_CMD_SS_RETAIN 0x01 +# define SCSI_CMD_SS_EJECT 0x02 + +#define SCSI_CMD_RECEIVE_DIAG_RESULTS 0x1c /* O all */ +#define scsi_cmd_receive_diag_t scsi_command_group_0 +# define scsi_cmd_allocation_length1 scsi_cmd_lba3 +# define scsi_cmd_allocation_length2 scsi_cmd_xfer_len + +#define SCSI_CMD_SEND_DIAGNOSTICS 0x1d /* O all */ +#define scsi_cmd_send_diag_t scsi_command_group_0 +# define SCSI_CMD_DIAG_SELFTEST 0x04 +# define SCSI_CMD_DIAG_DEVOFFL 0x02 +# define SCSI_CMD_DIAG_UNITOFFL 0x01 + +#define SCSI_CMD_PREVENT_ALLOW_REMOVAL 0x1e /* O disk tape worm rom */ +#define scsi_cmd_medium_removal_t scsi_command_group_0 +# define scsi_cmd_pa_prevent scsi_cmd_xfer_len /* 0x1 */ + + /* 0x1f reserved */ + + /* GROUP 1 */ + /* 0x20..0x24 vendor unique */ + +#define SCSI_CMD_READ_CAPACITY 0x25 /* E disk worm rom */ +#define scsi_cmd_read_capacity_t scsi_command_group_1 +# define scsi_cmd_rcap_flags scsi_cmd_xfer_len_2 +# define SCSI_CMD_RCAP_PMI 0x01 + + /* 0x26..0x27 vendor unique */ + +#define SCSI_CMD_LONG_READ 0x28 /* E disk M worm rom */ +#define scsi_cmd_long_read_t scsi_command_group_1 + + /* 0x29 vendor unique */ + +#define SCSI_CMD_LONG_WRITE 0x2a /* E disk M worm */ +#define scsi_cmd_long_write_t scsi_command_group_1 + +#define SCSI_CMD_LONG_SEEK 0x2b /* O disk worm rom */ +#define scsi_cmd_long_seek_t scsi_command_group_1 + + /* 0x2c..0x2d vendor unique */ + +#define SCSI_CMD_WRITE_AND_VERIFY 0x2e /* O disk worm */ +#define scsi_cmd_write_vfy_t scsi_command_group_1 +# define SCSI_CMD_VFY_BYTCHK 0x02 + +#define SCSI_CMD_VERIFY_1 0x2f /* O disk worm rom */ +#define scsi_cmd_verify_long_t scsi_command_group_1 +# define SCSI_CMD_VFY_BLKVFY 0x04 + +#define SCSI_CMD_SEARCH_HIGH 0x30 /* O disk worm rom */ +#define scsi_cmd_search_t scsi_command_group_1 +# define SCSI_CMD_SRCH_INVERT 0x10 +# define SCSI_CMD_SRCH_SPNDAT 0x02 + +#define SCSI_CMD_SEARCH_EQUAL 0x31 /* O disk worm rom */ +#define SCSI_CMD_SEARCH_LOW 0x32 /* O disk worm rom */ + +#define SCSI_CMD_SET_LIMITS 0x33 /* O disk worm rom */ +#define scsi_cmd_set_limits_t scsi_command_group_1 +# define SCSI_CMD_SL_RDINH 0x02 +# define SCSI_CMD_SL_WRINH 0x01 + + /* 0x34..0x38 reserved */ + +#define SCSI_CMD_COMPARE 0x39 /* O all */ +#define scsi_cmd_compare_t scsi_command_group_1 +# define scsi_cmd_1_paraml1 scsi_cmd_lba2 +# define scsi_cmd_1_paraml2 scsi_cmd_lba3 +# define scsi_cmd_1_paraml3 scsi_cmd_lba4 + +#define SCSI_CMD_COPY_AND_VERIFY 0x3a /* O all */ +#define scsi_cmd_copy_vfy_t scsi_command_group_1 +# define SCSI_CMD_CPY_BYTCHK 0x02 + + /* 0x3b..0x3f reserved */ + + /* GROUP 2 */ + /* 0x40..0x5f reserved */ + + /* GROUP 3 */ + /* 0x60..0x7f reserved */ + + /* GROUP 4 */ + /* 0x80..0x9f reserved */ + + /* GROUP 5 */ + /* 0xa0..0xaf vendor unique */ + /* 0xb0..0xbf reserved */ + + /* GROUP 6 */ + /* 0xc0..0xdf vendor unique */ + + /* GROUP 7 */ + /* 0xe0..0xff vendor unique */ + + +/* + * Command-specific results and definitions + */ + +/* inquiry data */ +typedef struct { + unsigned char periph_type; +#define SCSI_DISK 0x00 +#define SCSI_TAPE 0x01 +#define SCSI_PRINTER 0x02 +#define SCSI_CPU 0x03 +#define SCSI_WORM 0x04 +#define SCSI_CDROM 0x05 + + BITFIELD_2( unsigned char, + device_type : 7, + rmb : 1); + BITFIELD_3( unsigned char, + ansi : 3, + ecma : 3, + iso : 2); + unsigned char reserved; + unsigned char length; + unsigned char param[1]; +} scsi_inquiry_data_t; + +#define SCSI_INQ_STD_DATA -1 + +/* request sense data */ +#define SCSI_SNS_NOSENSE 0x0 +#define SCSI_SNS_RECOVERED 0x1 +#define SCSI_SNS_NOTREADY 0x2 +#define SCSI_SNS_MEDIUM_ERR 0x3 +#define SCSI_SNS_HW_ERR 0x4 +#define SCSI_SNS_ILLEGAL_REQ 0x5 +#define SCSI_SNS_UNIT_ATN 0x6 +#define SCSI_SNS_PROTECT 0x7 +#define SCSI_SNS_BLANK_CHK 0x8 +#define SCSI_SNS_VUQE 0x9 +#define SCSI_SNS_COPY_ABRT 0xa +#define SCSI_SNS_ABORTED 0xb +#define SCSI_SNS_EQUAL 0xc +#define SCSI_SNS_VOLUME_OVFL 0xd +#define SCSI_SNS_MISCOMPARE 0xe +#define SCSI_SNS_RESERVED 0xf + +typedef struct { + BITFIELD_3( unsigned char, + error_code : 4, + error_class : 3, + addr_valid : 1); +# define SCSI_SNS_XTENDED_SENSE_DATA 0x7 /* e.g. error_class=7 */ + union { + struct { + BITFIELD_2(unsigned char, + lba_msb : 5, + vuqe : 3); + unsigned char lba; + unsigned char lba_lsb; + } non_xtnded; + struct { + unsigned char segment_number; + BITFIELD_5(unsigned char, + sense_key : 4, + res : 1, + ili : 1, + eom : 1, + fm : 1); + unsigned char info0; + unsigned char info1; + unsigned char info2; + unsigned char info3; + unsigned char add_len; + unsigned char add_bytes[1];/* VARSIZE */ + } xtended; + } u; +} scsi_sense_data_t; + + +/* mode select params */ +typedef struct { + unsigned char reserved1; + unsigned char medium_type; + BITFIELD_3(unsigned char, + speed:4, /* special for tapes, reserved in SCSI-1 */ + buffer_mode:3, + reserved2:1); + unsigned char desc_len; + struct scsi_mode_parm_blockdesc { + unsigned char density_code; + unsigned char nblocks1; + unsigned char nblocks2; + unsigned char nblocks3; + unsigned char reserved; + unsigned char reclen1; + unsigned char reclen2; + unsigned char reclen3; + } descs[1]; /* VARSIZE, really */ +} scsi_mode_select_param_t; + +/* mode sense data (TAPE) */ +typedef struct { + unsigned char data_len; + unsigned char medium_type; + BITFIELD_3(unsigned char, + speed : 4, + buffered_mode : 3, + wp : 1); + unsigned char bdesc_len; + struct { + unsigned char density_code; + unsigned char no_blks_msb; + unsigned char no_blks; + unsigned char no_blks_lsb; + unsigned char reserved; + unsigned char blen_msb; + unsigned char blen; + unsigned char blen_lsb; + } bdesc[1]; /* VARSIZE */ + /* vuqe data might follow */ +} scsi_mode_sense_data_t; + +/* read capacity data */ +typedef struct { + unsigned char lba1; + unsigned char lba2; + unsigned char lba3; + unsigned char lba4; + unsigned char blen1; + unsigned char blen2; + unsigned char blen3; + unsigned char blen4; +} scsi_rcap_data_t; + +/* defect list(s) */ +typedef struct { + unsigned char res1; + unsigned char res2; + unsigned char list_len_msb; + unsigned char list_len_lsb; + struct { + unsigned char blockno_msb; + unsigned char blockno_sb1; + unsigned char blockno_sb2; + unsigned char blockno_lsb; + } defects[1]; /* VARSIZE */ +} scsi_Ldefect_data_t; + +/* block limits (tape) */ +typedef struct { + unsigned char res1; + unsigned char maxlen_msb; + unsigned char maxlen_sb; + unsigned char maxlen_lsb; + unsigned char minlen_msb; + unsigned char minlen_lsb; +} scsi_blimits_data_t; + +/* + * Status byte (a-la scsi1) + */ + +typedef union { + struct { + BITFIELD_4( unsigned char, + scsi_status_vendor_uqe1:1, + scsi_status_code:4, + scsi_status_vendor_uqe:2, + scsi_status_reserved:1); +# define SCSI_ST_GOOD 0x00 /* scsi_status_code values */ +# define SCSI_ST_CHECK_CONDITION 0x01 +# define SCSI_ST_CONDITION_MET 0x02 +# define SCSI_ST_BUSY 0x04 +# define SCSI_ST_INT_GOOD 0x08 +# define SCSI_ST_INT_MET 0x0a +# define SCSI_ST_RES_CONFLICT 0x0c + /* anything else is reserved */ + } st; + unsigned char bits; +} scsi_status_byte_t; + + +#endif _SCSI_SCSI_H_ -- cgit v1.2.3