559 lines
20 KiB
C
559 lines
20 KiB
C
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Ralph Campbell.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* from: @(#)scsi.h 8.1 (Berkeley) 6/10/93
|
|
* $Id: scsi.h,v 1.3 1994/05/27 08:59:28 glass Exp $
|
|
*
|
|
* scsi.h --
|
|
*
|
|
* Common declarations for SCSI command formaters. This file only covers
|
|
* definitions pertaining to the SCSI common command set that are
|
|
* common to all SCSI device types (ie disk, tapes, WORM, printers, etc).
|
|
* Some of the references from the proceedings of the
|
|
* 1984 Mini/Micro Northeast conference might help in understanding SCSI.
|
|
*
|
|
* from: Header: /sprite/src/kernel/dev/RCS/scsi.h,
|
|
* v 9.1 90/02/13 23:11:24 jhh Exp SPRITE (Berkeley)
|
|
* $Id: scsi.h,v 1.3 1994/05/27 08:59:28 glass Exp $
|
|
*/
|
|
|
|
#ifndef _SCSI_H
|
|
#define _SCSI_H
|
|
|
|
/*
|
|
* "Standard" SCSI Commands.
|
|
* SCSI commands are divided into 8 groups as follows:
|
|
* Group0 (0x00 - 0x1f). Basic commands. 6 bytes long
|
|
* Group1 (0x20 - 0x3f). Extended command. 10 bytes.
|
|
* Group2 (0x40 - 0x5f). Reserved.
|
|
* Group2 (0x60 - 0x7f). Reserved.
|
|
* Group2 (0x80 - 0x9f). Reserved.
|
|
* Group2 (0xa0 - 0xbf). Reserved.
|
|
* Group6 (0xc0 - 0xdf). Vendor Unique
|
|
* Group7 (0xe0 - 0xff). Vendor Unique
|
|
*/
|
|
|
|
/*
|
|
* Scsi Group0 commands all are 6 bytes and have a format according to
|
|
* struct ScsiGroup0Cmd.
|
|
*/
|
|
#define SCSI_TEST_UNIT_READY 0x00
|
|
#define SCSI_REZERO_UNIT 0x01
|
|
#define SCSI_REWIND 0x01
|
|
#define SCSI_REQUEST_SENSE 0x03
|
|
#define SCSI_FORMAT_UNIT 0x04
|
|
#define SCSI_READ_BLOCK_LIMITS 0x05
|
|
#define SCSI_REASSIGN_BLOCKS 0x07
|
|
#define SCSI_READ 0x08
|
|
#define SCSI_WRITE 0x0a
|
|
#define SCSI_SEEK 0x0b
|
|
#define SCSI_TRACK_SELECT 0x0b
|
|
#define SCSI_READ_REVERSE 0x0f
|
|
#define SCSI_WRITE_EOF 0x10
|
|
#define SCSI_SPACE 0x11
|
|
#define SCSI_INQUIRY 0x12
|
|
#define SCSI_VERIFY 0x13
|
|
#define SCSI_READ_BUFFER 0x14
|
|
#define SCSI_MODE_SELECT 0x15
|
|
#define SCSI_RESERVE_UNIT 0x16
|
|
#define SCSI_RELEASE_UNIT 0x17
|
|
#define SCSI_COPY 0x18
|
|
#define SCSI_ERASE_TAPE 0x19
|
|
#define SCSI_MODE_SENSE 0x1a
|
|
#define SCSI_START_STOP 0x1b
|
|
#define SCSI_LOAD_UNLOAD 0x1b
|
|
#define SCSI_RECV_DIAG_RESULTS 0x1c
|
|
#define SCSI_SEND_DIAGNOSTIC 0x1d
|
|
#define SCSI_PREVENT_ALLOW 0x1e
|
|
|
|
/*
|
|
* Group1 commands are all 10 bytes and have a format according to
|
|
* struct ScsiGroup1Cmd.
|
|
*/
|
|
#define SCSI_READ_CAPACITY 0x25
|
|
#define SCSI_READ_EXT 0x28
|
|
#define SCSI_WRITE_EXT 0x2a
|
|
#define SCSI_SEEK_EXT 0x2b
|
|
#define SCSI_WRITE_VERIFY 0x2e
|
|
#define SCSI_VERIFY_EXT 0x2f
|
|
#define SCSI_SEARCH_HIGH 0x30
|
|
#define SCSI_SEARCH_EQUAL 0x31
|
|
#define SCSI_SEARCH_LOW 0x32
|
|
#define SCSI_SET_LIMITS 0x33
|
|
#define SCSI_COMPARE 0x39
|
|
#define SCSI_COPY_VERIFY 0x3a
|
|
|
|
/*
|
|
* Control byte flags for Group0 and Group1 commands.
|
|
*
|
|
* SCSI_CTRL_LINK - This is used to prevent a bus free phase between commands.
|
|
* If the command terminates successfully, a SCSI_LINKED_CMD_COMPLETE
|
|
* message is returned instead of the normal SCSI_COMMAND_COMPLETE message. * The last command in a chain should not have this bit set
|
|
* (and consequently gets a normal SCSI_COMMAND_COMPLETE message).
|
|
* SCSI_CTRL_LINK_FLAG - This bit should only set when SCSI_CTRL_LINK is set and
|
|
* causes a SCSI_LINKED_FLAGED_CMD_COMPLETE to be returned instead of
|
|
* a SCSI_LINKED_CMD_COMPLETE.
|
|
*/
|
|
#define SCSI_CTRL_LINK 0x01 /* Link commands (no bus free phase) */
|
|
#define SCSI_CTRL_LINK_INTR 0x02 /* Interrupt after linked command */
|
|
|
|
/*
|
|
* The standard group0 6-byte SCSI control block. Note that the
|
|
* fields between highAddr and blockCount inclusive are command dependent.
|
|
* The definitions Addr and BlockCount cover most of the commands we will
|
|
* use.
|
|
*/
|
|
typedef struct ScsiGroup0Cmd {
|
|
u_char command; /* command code, defined below. The
|
|
* upper three bits of this are zero
|
|
* to indicate the control block is
|
|
* only 6 bytes long */
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
u_char highAddr :5; /* High bits of address */
|
|
#else
|
|
u_char highAddr :5; /* High bits of address */
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
#endif
|
|
u_char midAddr; /* Middle bits of address */
|
|
u_char lowAddr; /* Low bits of address */
|
|
u_char blockCount; /* Blocks to transfer */
|
|
u_char control; /* See flags for common bits */
|
|
} ScsiGroup0Cmd;
|
|
|
|
/*
|
|
* Format of a SCSI_START_STOP command. This is a group 0 command, but
|
|
* the command contents are different.
|
|
*/
|
|
typedef struct ScsiStartStopCmd {
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char command; /* command code, defined below. The
|
|
* upper three bits of this are zero
|
|
* to indicate the control block is
|
|
* only 6 bytes long */
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
u_char pad1 :4; /* Reserved */
|
|
u_char immed :1; /* Immediate status bit */
|
|
u_char pad2; /* Reserved */
|
|
u_char pad3; /* Reserved */
|
|
u_char pad4 :6; /* Reserved */
|
|
u_char loadEject :1; /* Load or eject medium */
|
|
u_char start :1; /* Start or stop medium */
|
|
u_char control; /* See flags for common bits */
|
|
#else
|
|
u_char command; /* command code, defined below. The
|
|
* upper three bits of this are zero
|
|
* to indicate the control block is
|
|
* only 6 bytes long */
|
|
u_char immed :1; /* Immediate status bit */
|
|
u_char pad1 :4; /* Reserved */
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
u_char pad2; /* Reserved */
|
|
u_char pad3; /* Reserved */
|
|
u_char start :1; /* Start or stop medium */
|
|
u_char loadEject :1; /* Load or eject medium */
|
|
u_char pad4 :6; /* Reserved */
|
|
u_char control; /* See flags for common bits */
|
|
#endif
|
|
} ScsiStartStopCmd;
|
|
|
|
/*
|
|
* The standard group1 10-byte SCSI control block. Note that the
|
|
* fields between highAddr and blockCount inclusive are command dependent.
|
|
* The definitions Addr and BlockCount cover most of the commands we will
|
|
* use.
|
|
*/
|
|
typedef struct ScsiGroup1Cmd {
|
|
u_char command; /* command code, defined below. The
|
|
* upper three bits of this are zero
|
|
* to indicate the control block is
|
|
* only 6 bytes long */
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
u_char pad1 :5; /* Reserved */
|
|
#else
|
|
u_char pad1 :5; /* Reserved */
|
|
u_char unitNumber :3; /* Logical Unit (LUN) to which to
|
|
* pass the command. The device
|
|
* has already been selected using
|
|
* the "targetID" bit. */
|
|
#endif
|
|
u_char highAddr; /* High bits of address */
|
|
u_char midHighAddr; /* Middle high bits of address */
|
|
u_char midLowAddr; /* Middle low bits of address */
|
|
u_char lowAddr; /* Low bits of address */
|
|
u_char pad2; /* Reserved */
|
|
u_char highBlockCount; /* High bits of blocks to transfer */
|
|
u_char lowBlockCount; /* Low bits of blocks to transfer */
|
|
u_char control; /* See flags for common bits */
|
|
} ScsiGroup1Cmd;
|
|
|
|
/*
|
|
* SCSI status completion information.
|
|
* This is returned by the device when a command completes.
|
|
*/
|
|
#define SCSI_STATUS_CHECKCOND 0x02 /* Check Condition (ie., read sense) */
|
|
#define SCSI_STATUS_CONDMET 0x04 /* Condition Met (ie., search worked) */
|
|
#define SCSI_STATUS_BUSY 0x08
|
|
#define SCSI_STATUS_INTERMED 0x10 /* Intermediate status sent */
|
|
#define SCSI_STATUS_EXT 0x80 /* Extended status valid */
|
|
|
|
/*
|
|
* Sense information provided after some errors. This is divided into
|
|
* two kinds, classes 0-6, and class 7. This is 30 bytes big to allow
|
|
* for the drive specific sense bytes that follow the standard 4 byte header.
|
|
*
|
|
* For extended sense, this buffer may be cast into another type. Also
|
|
* The actual size of the sense data returned is used to detect what
|
|
* kind of tape drive is out there. Kludgy, but true.
|
|
*/
|
|
typedef struct ScsiClass0Sense {
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char valid :1; /* Sense data is valid */
|
|
u_char error :7; /* 3 bits class and 4 bits code */
|
|
#else
|
|
u_char error :7; /* 3 bits class and 4 bits code */
|
|
u_char valid :1; /* Sense data is valid */
|
|
#endif
|
|
u_char highAddr; /* High byte of block address */
|
|
u_char midAddr; /* Middle byte of block address */
|
|
u_char lowAddr; /* Low byte of block address */
|
|
u_char sense[26]; /* Target specific sense data */
|
|
} ScsiClass0Sense;
|
|
|
|
/*
|
|
* Definitions for errors in the sense data. The error field is specified
|
|
* as a 3 bit class and 4 bit code, but it is easier to treat it as a
|
|
* single 7 bit field.
|
|
*/
|
|
#define SCSI_NO_SENSE_DATA 0x00
|
|
#define SCSI_NOT_READY 0x04
|
|
#define SCSI_NOT_LOADED 0x09
|
|
#define SCSI_INSUF_CAPACITY 0x0a
|
|
#define SCSI_HARD_DATA_ERROR 0x11
|
|
#define SCSI_WRITE_PROTECT 0x17
|
|
#define SCSI_CORRECTABLE_ERROR 0x18
|
|
#define SCSI_FILE_MARK 0x1c
|
|
#define SCSI_INVALID_COMMAND 0x20
|
|
#define SCSI_UNIT_ATTENTION 0x30
|
|
#define SCSI_END_OF_MEDIA 0x34
|
|
|
|
/*
|
|
* The standard "extended" sense data returned by SCSI devices. This
|
|
* has an error field of 0x70, for a "class 7" error.
|
|
*/
|
|
typedef struct ScsiClass7Sense {
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char valid :1; /* Sense data is valid */
|
|
u_char error7 :7; /* == 0x70 */
|
|
u_char pad1; /* Also "segment number" for copy */
|
|
u_char fileMark :1; /* File mark on device */
|
|
u_char endOfMedia :1; /* End of media reached */
|
|
u_char badBlockLen :1; /* Block length mis-match (Exabyte) */
|
|
u_char pad2 :1;
|
|
u_char key :4; /* Sense keys defined below */
|
|
u_char info1; /* Information byte 1 */
|
|
u_char info2; /* Information byte 2 */
|
|
u_char info3; /* Information byte 3 */
|
|
u_char info4; /* Information byte 4 */
|
|
u_char length; /* Number of additional info bytes */
|
|
#else
|
|
u_char error7 :7; /* == 0x70 */
|
|
u_char valid :1; /* Sense data is valid */
|
|
u_char pad1; /* Also "segment number" for copy */
|
|
u_char key :4; /* Sense keys defined below */
|
|
u_char pad2 :1;
|
|
u_char badBlockLen :1; /* Block length mis-match (Exabyte) */
|
|
u_char endOfMedia :1; /* End of media reached */
|
|
u_char fileMark :1; /* File mark on device */
|
|
u_char info1; /* Information byte 1 */
|
|
u_char info2; /* Information byte 2 */
|
|
u_char info3; /* Information byte 3 */
|
|
u_char info4; /* Information byte 4 */
|
|
u_char length; /* Number of additional info bytes */
|
|
#endif
|
|
} ScsiClass7Sense; /* 8 Bytes */
|
|
|
|
/*
|
|
* Key values for standardized sense class 7.
|
|
*/
|
|
#define SCSI_CLASS7_NO_SENSE 0
|
|
#define SCSI_CLASS7_RECOVERABLE 1
|
|
#define SCSI_CLASS7_NOT_READY 2
|
|
#define SCSI_CLASS7_MEDIA_ERROR 3
|
|
#define SCSI_CLASS7_HARDWARE_ERROR 4
|
|
#define SCSI_CLASS7_ILLEGAL_REQUEST 5
|
|
|
|
/*
|
|
* These seem to have different meanings to different vendors....
|
|
*/
|
|
#define SCSI_CLASS7_MEDIA_CHANGE 6
|
|
#define SCSI_CLASS7_UNIT_ATTN 6
|
|
|
|
#define SCSI_CLASS7_WRITE_PROTECT 7
|
|
#define SCSI_CLASS7_BLANK_CHECK 8
|
|
#define SCSI_CLASS7_VENDOR 9
|
|
#define SCSI_CLASS7_POWER_UP_FAILURE 10
|
|
#define SCSI_CLASS7_ABORT 11
|
|
#define SCSI_CLASS7_EQUAL 12
|
|
#define SCSI_CLASS7_OVERFLOW 13
|
|
#define SCSI_CLASS7_RESERVED_14 14
|
|
#define SCSI_CLASS7_RESERVED_15 15
|
|
|
|
/*
|
|
* Data return by the SCSI inquiry command.
|
|
*/
|
|
typedef struct ScsiInquiryData {
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char type; /* Peripheral Device type. See below. */
|
|
u_char rmb:1; /* Removable Medium bit. */
|
|
u_char qualifier:7; /* Device type qualifier. */
|
|
u_char version; /* Version info. */
|
|
u_char reserved:4; /* reserved. */
|
|
u_char format:4; /* Response format. */
|
|
u_char length; /* length of data returned. */
|
|
u_char reserved2[2]; /* Reserved */
|
|
u_char flags; /* SCSI II flags (see below) */
|
|
u_char vendorID[8]; /* Vendor ID (ASCII) */
|
|
u_char productID[16]; /* Product ID (ASCII) */
|
|
u_char revLevel[4]; /* Revision level (ASCII) */
|
|
u_char revData[8]; /* Revision data (ASCII) */
|
|
#else
|
|
u_char type; /* Peripheral Device type. See below. */
|
|
u_char qualifier:7; /* Device type qualifier. */
|
|
u_char rmb:1; /* Removable Medium bit. */
|
|
u_char version; /* Version info. */
|
|
u_char format:4; /* Response format. */
|
|
u_char reserved:4; /* reserved. */
|
|
u_char length; /* length of data returned. */
|
|
u_char reserved2[2]; /* Reserved */
|
|
u_char flags; /* SCSI II flags (see below) */
|
|
u_char vendorID[8]; /* Vendor ID (ASCII) */
|
|
u_char productID[16]; /* Product ID (ASCII) */
|
|
u_char revLevel[4]; /* Revision level (ASCII) */
|
|
u_char revData[8]; /* Revision data (ASCII) */
|
|
#endif
|
|
} ScsiInquiryData;
|
|
|
|
/*
|
|
* The SCSI Peripheral type ID codes as return by the SCSI_INQUIRY command.
|
|
*
|
|
* SCSI_DISK_TYPE - Direct Access Device.
|
|
* SCSI_TAPE_TYPE - Sequential Access Device.
|
|
* SCSI_PRINTER_TYPE - Printer Device.
|
|
* SCSI_HOST_TYPE - Processor Device.
|
|
* SCSI_WORM_TYPE - Write-Once Read-Multiple Device.
|
|
* SCSI_ROM_TYPE - Read-Only Direct Access Device.
|
|
* SCSI_SCANNER_TYPE - Scanner device.
|
|
* SCSI_OPTICAL_MEM_TYPE - Optical memory device.
|
|
* SCSI_MEDIUM_CHANGER_TYPE - Medium changer device.
|
|
* SCSI_COMMUNICATIONS_TYPE - Communications device.
|
|
* SCSI_NODEVICE_TYPE - Logical Unit not present or implemented.
|
|
*
|
|
* Note that codes 0xa-0x7e are reserved and 0x80-0xff are vendor unique.
|
|
*/
|
|
#define SCSI_DISK_TYPE 0
|
|
#define SCSI_TAPE_TYPE 1
|
|
#define SCSI_PRINTER_TYPE 2
|
|
#define SCSI_HOST_TYPE 3
|
|
#define SCSI_WORM_TYPE 4
|
|
#define SCSI_ROM_TYPE 5
|
|
#define SCSI_SCANNER_TYPE 6
|
|
#define SCSI_OPTICAL_MEM_TYPE 7
|
|
#define SCSI_MEDIUM_CHANGER_TYPE 8
|
|
#define SCSI_COMMUNICATIONS_TYPE 9
|
|
#define SCSI_NODEVICE_TYPE 0x7f
|
|
|
|
/*
|
|
* The SCSI I & II inquiry flags.
|
|
*
|
|
* SCSI_REL_ADR - Relative addressing supported.
|
|
* SCSI_WIDE_32 - 32 bit wide SCSI bus transfers supported.
|
|
* SCSI_WIDE_16 - 16 bit wide SCSI bus transfers supported.
|
|
* SCSI_SYNC - Synchronous data transfers supported.
|
|
* SCSI_LINKED - Linked commands supported.
|
|
* SCSI_CMD_QUEUE - Tagged command queuing supported.
|
|
* SCSI_SOFT_RESET - Soft RESET alternative suported.
|
|
*/
|
|
#define SCSI_REL_ADR 0x80
|
|
#define SCSI_WIDE_32 0x40
|
|
#define SCSI_WIDE_16 0x20
|
|
#define SCSI_SYNC 0x10
|
|
#define SCSI_LINKED 0x08
|
|
#define SCSI_CMD_QUEUE 0x02
|
|
#define SCSI_SOFT_RESET 0x01
|
|
|
|
/*
|
|
* Standard header for SCSI_MODE_SENSE and SCSI_MODE_SELECT commands for tapes.
|
|
*/
|
|
typedef struct ScsiTapeModeSelectHdr {
|
|
u_char len; /* length */
|
|
u_char media; /* media type */
|
|
#if BYTE_ORDER == BIG_ENDIAN
|
|
u_char writeprot:1; /* Write protected media */
|
|
u_char bufferedMode:3; /* Type of buffer to be done. */
|
|
u_char speed:4; /* Drive speed. */
|
|
#else
|
|
u_char speed:4; /* Drive speed. */
|
|
u_char bufferedMode:3; /* Type of buffer to be done. */
|
|
u_char writeprot:1; /* Write protected media */
|
|
#endif
|
|
u_char length; /* Block descriptor length. */
|
|
u_char density; /* tape density code */
|
|
u_char blocks_2; /* number of blocks (MSB) */
|
|
u_char blocks_1; /* number of blocks */
|
|
u_char blocks_0; /* number of blocks (LSB) */
|
|
u_char reserved; /* */
|
|
u_char block_size2; /* Tape block size (MSB) */
|
|
u_char block_size1; /* Tape block size */
|
|
u_char block_size0; /* Tape block size (LSB) */
|
|
u_char vendor[6]; /* vendor specific data */
|
|
} ScsiTapeModeSelectHdr;
|
|
|
|
/*
|
|
* Definitions of SCSI messages.
|
|
*
|
|
* SCSI_COMMAND_COMPLETE - After a command has completed, successfully
|
|
* or not, this is returned to the host from the target.
|
|
*
|
|
* SCSI_EXTENDED_MSG - Indicates that a multi-byte message is being sent.
|
|
*
|
|
* The following messages are used with connect/disconnect:
|
|
* SCSI_SAVE_DATA_POINTER - Sent from target to host to request saving
|
|
* of current DMA address and count. Indicates a pending dis-connect.
|
|
* SCSI_RESTORE_POINTER - Sent from the target to the host to request
|
|
* restoring pointers saved before a disconnect
|
|
* SCSI_DISCONNECT - Sent from the target to the host to disconnect.
|
|
* SCSI_ABORT - Sent from the host to the target to abort current request.
|
|
* SCSI_MESSAGE_REJECT - Indicates receipt, by either host or target, of
|
|
* an unimplemented message.
|
|
* SCSI_NO_OP - Sent from host to target if it has no real message to send.
|
|
* SCSI_MESSAGE_PARITY_ERROR - Sent from host to target on message parity error
|
|
* SCSI_BUS_RESET - Sent from host to target to reset all current I/O
|
|
*
|
|
* SCSI_IDENTIFY - The low order two bits of this message type indicate
|
|
* the Logical Unit of the Target which is requesting a reconnect.
|
|
* SCSI_DIS_REC_IDENTIFY - Sent from the host to a target to indicate
|
|
* is supports connect/dis-connect
|
|
*
|
|
*/
|
|
#define SCSI_COMMAND_COMPLETE 0x00
|
|
#define SCSI_EXTENDED_MSG 0x01
|
|
#define SCSI_SAVE_DATA_POINTER 0x02
|
|
#define SCSI_RESTORE_POINTERS 0x03
|
|
#define SCSI_DISCONNECT 0x04
|
|
#define SCSI_ABORT 0x06
|
|
#define SCSI_MESSAGE_REJECT 0x07
|
|
#define SCSI_NO_OP 0x08
|
|
#define SCSI_MESSAGE_PARITY_ERROR 0x09
|
|
#define SCSI_LINKED_CMD_COMPLETE 0x0A
|
|
#define SCSI_LINKED_FLAGED_CMD_COMPLETE 0x0B
|
|
#define SCSI_BUS_RESET 0x0C
|
|
|
|
#define SCSI_IDENTIFY 0x80
|
|
#define SCSI_DIS_REC_IDENTIFY 0xc0
|
|
|
|
/*
|
|
* Extended message types (2nd byte of SCSI_EXTENDED_MSG).
|
|
*/
|
|
#define SCSI_MODIFY_DATA_PTR 0x00
|
|
#define SCSI_SYNCHRONOUS_XFER 0x01
|
|
#define SCSI_EXTENDED_IDENTIFY 0x02 /* only in SCSI I */
|
|
#define SCSI_WIDE_XFER 0x03
|
|
|
|
/*
|
|
* Driver ioctl's for various scsi operations.
|
|
*/
|
|
#ifndef _IOCTL_
|
|
#include <sys/ioctl.h>
|
|
#endif
|
|
|
|
/*
|
|
* Control for SCSI "format" mode.
|
|
*
|
|
* "Format" mode allows a privileged process to issue direct SCSI
|
|
* commands to a drive (it is intended primarily to allow on-line
|
|
* formatting). SDIOCSFORMAT with a non-zero arg will put the drive
|
|
* into format mode; a zero arg will take it out. When in format
|
|
* mode, only the process that issued the SDIOCFORMAT can read or
|
|
* write the drive.
|
|
*
|
|
* In format mode, process is expected to
|
|
* - do SDIOCSCSICOMMAND to supply cdb for next SCSI op
|
|
* - do read or write as appropriate for cdb
|
|
* - if i/o error, optionally do SDIOCSENSE to get completion
|
|
* status and sense data from last scsi operation.
|
|
*/
|
|
|
|
struct scsi_fmt_cdb {
|
|
int len; /* cdb length (in bytes) */
|
|
u_char cdb[28]; /* cdb to use on next read/write */
|
|
};
|
|
|
|
struct scsi_fmt_sense {
|
|
u_int status; /* completion status of last op */
|
|
u_char sense[32]; /* sense data (if any) from last op */
|
|
};
|
|
|
|
#define SDIOCSFORMAT _IOW('S', 0x1, int)
|
|
#define SDIOCGFORMAT _IOR('S', 0x2, int)
|
|
#define SDIOCSCSICOMMAND _IOW('S', 0x3, struct scsi_fmt_cdb)
|
|
#define SDIOCSENSE _IOR('S', 0x4, struct scsi_fmt_sense)
|
|
|
|
#ifdef KERNEL
|
|
/*
|
|
* Routines.
|
|
*/
|
|
extern void scsiGroup0Cmd();
|
|
extern void scsiGroup1Cmd();
|
|
#endif /* KERNEL */
|
|
|
|
#endif /* _SCSI_H */
|