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[src/trunk]: src/sys/arch/arc/dev Moved from /cvsroot/syssrc/sys/arch/pica/de...
details: https://anonhg.NetBSD.org/src/rev/4f3d535af722
branches: trunk
changeset: 480973:4f3d535af722
user: soda <soda%NetBSD.org@localhost>
date: Sun Jan 23 20:08:13 2000 +0000
description:
Moved from /cvsroot/syssrc/sys/arch/pica/dev/scsi.h,v
diffstat:
sys/arch/arc/dev/scsi.h | 558 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 558 insertions(+), 0 deletions(-)
diffs (truncated from 562 to 300 lines):
diff -r dd0111bba11c -r 4f3d535af722 sys/arch/arc/dev/scsi.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arc/dev/scsi.h Sun Jan 23 20:08:13 2000 +0000
@@ -0,0 +1,558 @@
+/* $NetBSD: scsi.h,v 1.3 2000/01/23 20:08:14 soda Exp $ */
+
+/*
+ * 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
+ *
+ * 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)
+ */
+
+#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 */
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