390 lines
11 KiB
C
390 lines
11 KiB
C
/*
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Van Jacobson of Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)scsidefs.h 7.3 (Berkeley) 2/5/91
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* $Id: scsidefs.h,v 1.2 1994/02/11 07:02:10 chopps Exp $
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*/
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/*
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* Common SCSI definitions
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*/
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/* psns/pctl phase lines as bits */
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#define PHASE_MSG 0x04
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#define PHASE_CD 0x02 /* =1 if 'command' */
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#define PHASE_IO 0x01 /* =1 if data inbound */
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/* Phase lines as values */
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#define PHASE 0x07 /* mask for psns/pctl phase */
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#define DATA_OUT_PHASE 0x00
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#define DATA_IN_PHASE 0x01
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#define CMD_PHASE 0x02
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#define STATUS_PHASE 0x03
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#define BUS_FREE_PHASE 0x04
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#define ARB_SEL_PHASE 0x05 /* Fuji chip combines arbitration with sel. */
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#define MESG_OUT_PHASE 0x06
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#define MESG_IN_PHASE 0x07
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/* SCSI Messages */
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#define MSG_CMD_COMPLETE 0x00
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#define MSG_EXT_MESSAGE 0x01
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#define MSG_SAVE_DATA_PTR 0x02
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#define MSG_RESTORE_PTR 0x03
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#define MSG_DISCONNECT 0x04
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#define MSG_INIT_DETECT_ERROR 0x05
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#define MSG_ABORT 0x06
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#define MSG_REJECT 0x07
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#define MSG_NOOP 0x08
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#define MSG_PARITY_ERROR 0x09
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#define MSG_BUS_DEVICE_RESET 0x0C
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#define MSG_IDENTIFY 0x80
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#define MSG_IDENTIFY_DR 0xc0 /* (disconnect/reconnect allowed) */
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#define MSG_SYNC_REQ 0x01
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/* SCSI Commands */
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#define CMD_TEST_UNIT_READY 0x00
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#define CMD_REQUEST_SENSE 0x03
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#define CMD_INQUIRY 0x12
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#define CMD_SEND_DIAGNOSTIC 0x1D
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#define CMD_REWIND 0x01
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#define CMD_FORMAT_UNIT 0x04
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#define CMD_READ_BLOCK_LIMITS 0x05
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#define CMD_REASSIGN_BLOCKS 0x07
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#define CMD_READ 0x08
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#define CMD_WRITE 0x0A
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#define CMD_WRITE_FILEMARK 0x10
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#define CMD_SPACE 0x11
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#define CMD_MODE_SELECT 0x15
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#define CMD_RELEASE_UNIT 0x17
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#define CMD_ERASE 0x19
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#define CMD_MODE_SENSE 0x1A
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#define CMD_LOADUNLOAD 0x1B
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#define CMD_RECEIVE_DIAG 0x1C
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#define CMD_SEND_DIAG 0x1D
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#define CMD_P_A_MEDIA_REMOVAL 0x1E
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#define CMD_READ_CAPACITY 0x25
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#define CMD_READ_EXT 0x28
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#define CMD_WRITE_EXT 0x2A
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#define CMD_READ_DEFECT_DATA 0x37
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#define SD_MANUFAC_DEFECTS 0x14000000
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#define SD_GROWN_DEFECTS 0x0c000000
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#define CMD_READ_BUFFER 0x3B
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#define CMD_WRITE_BUFFER 0x3C
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#define CMD_READ_FULL 0xF0
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#define CMD_MEDIA_TEST 0xF1
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#define CMD_ACCESS_LOG 0xF2
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#define CMD_WRITE_FULL 0xFC
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#define CMD_MANAGE_PRIMARY 0xFD
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#define CMD_EXECUTE_DATA 0xFE
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/* SCSI status bits */
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#define STS_CHECKCOND 0x02 /* Check Condition (ie., read sense) */
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#define STS_CONDMET 0x04 /* Condition Met (ie., search worked) */
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#define STS_BUSY 0x08
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#define STS_INTERMED 0x10 /* Intermediate status sent */
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#define STS_EXT 0x80 /* Extended status valid */
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/* command descriptor blocks */
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struct scsi_cdb6 {
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u_char cmd; /* command code */
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u_char lun: 3, /* logical unit on ctlr */
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lbah: 5; /* msb of read/write logical block addr */
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u_char lbam; /* middle byte of l.b.a. */
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u_char lbal; /* lsb of l.b.a. */
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u_char len; /* transfer length */
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u_char xtra;
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};
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struct scsi_cdb10 {
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u_char cmd; /* command code */
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u_char lun: 3, /* logical unit on ctlr */
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: 4,
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rel: 1; /* l.b.a. is relative addr if =1 */
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u_char lbah; /* msb of read/write logical block addr */
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u_char lbahm; /* high middle byte of l.b.a. */
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u_char lbalm; /* low middle byte of l.b.a. */
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u_char lbal; /* lsb of l.b.a. */
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u_char reserved;
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u_char lenh; /* msb transfer length */
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u_char lenl; /* lsb transfer length */
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u_char xtra;
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};
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/* basic sense data */
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struct scsi_sense {
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u_char valid: 1, /* l.b.a. is valid */
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class: 3,
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code: 4;
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u_char vu: 4, /* vendor unique */
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lbah: 4;
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u_char lbam;
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u_char lbal;
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};
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struct scsi_xsense {
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u_char valid: 1, /* l.b.a. is valid */
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class: 3,
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code: 4;
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u_char segment;
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u_char filemark: 1,
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eom: 1,
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ili: 1, /* illegal length indicator */
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rsvd: 1,
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key: 4;
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u_char info1;
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u_char info2;
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u_char info3;
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u_char info4;
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u_char len; /* additional sense length */
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};
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/* inquiry data */
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struct scsi_inquiry {
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u_char type;
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u_char qual;
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u_char version;
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u_char rsvd;
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u_char len;
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char class[3];
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char vendor_id[8];
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char product_id[16];
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char rev[4];
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};
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struct scsi_format_parms { /* physical BFI format */
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u_short reserved;
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u_short list_len;
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struct defect {
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unsigned cyl : 24;
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unsigned head : 8;
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long bytes_from_index;
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} defect[127];
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} format_parms;
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struct scsi_reassign_parms {
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u_short reserved;
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u_short list_len; /* length in bytes of defects only */
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struct new_defect {
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unsigned lba; /* logical block address */
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} new_defect[2];
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} reassign_parms;
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struct scsi_modesel_hdr {
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u_char rsvd1;
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u_char media_type;
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u_char rsvd2;
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u_char block_desc_len;
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u_int density : 8;
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u_int number_blocks :24;
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u_int rsvd3 : 8;
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u_int block_length :24;
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};
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struct scsi_modesense_hdr {
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u_char len;
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u_char media_type;
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u_char wp : 1;
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u_char rsvd1 : 7;
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u_char block_desc_len;
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u_int density : 8;
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u_int number_blocks :24;
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u_int rsvd2 : 8;
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u_int block_length :24;
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};
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/*
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* Mode Select / Mode sense "pages"
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*/
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/*
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* Page One - Error Recovery Parameters
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*/
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struct scsi_err_recovery {
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u_char page_savable : 1; /* save parameters */
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u_char reserved : 1;
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u_char page_code : 6; /* = 0x01 */
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u_char page_length; /* = 6 */
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u_char awre : 1; /* auto write realloc enabled */
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u_char arre : 1; /* auto read realloc enabled */
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u_char tb : 1; /* transfer block */
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u_char rc : 1; /* read continuous */
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u_char eec : 1; /* enable early correction */
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u_char per : 1; /* post error */
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u_char dte : 1; /* disable transfer on error */
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u_char dcr : 1; /* disable correction */
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u_char retry_count;
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u_char correction_span;
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u_char head_offset_count;
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u_char strobe_offset_count;
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u_char recovery_time_limit;
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};
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/*
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* Page Two - Disconnect / Reconnect Control Parameters
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*/
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struct scsi_disco_reco {
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u_char page_savable : 1; /* save parameters */
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u_char rsvd : 1;
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u_char page_code : 6; /* = 0x02 */
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u_char page_length; /* = 10 */
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u_char buffer_full_ratio; /* write, how full before reconnect? */
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u_char buffer_empty_ratio; /* read, how full before reconnect? */
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u_short bus_inactivity_limit; /* how much bus time for busy */
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u_short disconnect_time_limit; /* min to remain disconnected */
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u_short connect_time_limit; /* min to remain connected */
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u_short reserved_1;
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};
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/*
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* Page Three - Direct Access Device Format Parameters
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*/
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struct scsi_format {
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u_char page_savable : 1; /* save parameters */
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u_char rsvd : 1;
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u_char page_code : 6; /* = 0x03 */
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u_char page_length; /* = 22 */
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u_short tracks_per_zone; /* Handling of Defects Fields */
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u_short alt_sect_zone;
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u_short alt_tracks_zone;
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u_short alt_tracks_vol;
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u_short sect_track; /* Track Format Field */
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u_short data_sect; /* Sector Format Fields */
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u_short interleave;
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u_short track_skew_factor;
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u_short cyl_skew_factor;
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u_char ssec : 1; /* Drive Type Field */
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u_char hsec : 1;
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u_char rmb : 1;
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u_char surf : 1;
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u_char ins : 1;
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u_char reserved_1 : 3;
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u_char reserved_2;
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u_char reserved_3;
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u_char reserved_4;
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};
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/*
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* Page Four - Rigid Disk Drive Geometry Parameters
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*/
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struct scsi_geometry {
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u_char page_savable : 1; /* save parameters */
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u_char rsvd : 1;
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u_char page_code : 6; /* = 0x04 */
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u_char page_length; /* = 18 */
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u_char cyl_ub; /* number of cylinders */
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u_char cyl_mb;
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u_char cyl_lb;
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u_char heads; /* number of heads */
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u_char precomp_cyl_ub; /* cylinder to start precomp */
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u_char precomp_cyl_mb;
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u_char precomp_cyl_lb;
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u_char current_cyl_ub; /* cyl to start reduced current */
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u_char current_cyl_mb;
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u_char current_cyl_lb;
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u_short step_rate; /* drive step rate */
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u_char landing_cyl_ub; /* landing zone cylinder */
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u_char landing_cyl_mb;
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u_char landing_cyl_lb;
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u_char reserved_1;
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u_char reserved_2;
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u_char reserved_3;
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};
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/*
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* Page 0x38 - Cache Control Parameters
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*/
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struct scsi_cache {
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u_char page_savable : 1; /* save parameters */
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u_char rsvd : 1;
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u_char page_code : 6; /* = 0x38 */
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u_char page_length; /* = 14 */
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u_char rsvd_1 : 1;
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u_char wie : 1; /* write index enable */
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u_char rsvd_2 : 1;
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u_char ce : 1; /* cache enable */
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u_char table_size : 4;
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u_char prefetch_threshold;
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u_char maximum_threshold;
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u_char maximumprefetch_multiplier;
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u_char minimum_threshold;
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u_char minimum_prefetch_multiplier;
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u_char reserved[8];
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};
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/*
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* Driver ioctl's for various scsi operations.
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*/
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#ifndef _IOCTL_
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#include "ioctl.h"
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#endif
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/*
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* Control for SCSI "format" mode.
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*
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* "Format" mode allows a privileged process to issue direct SCSI
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* commands to a drive (it is intended primarily to allow on-line
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* formatting). SDIOCSFORMAT with a non-zero arg will put the drive
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* into format mode; a zero arg will take it out. When in format
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* mode, only the process that issued the SDIOCFORMAT can read or
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* write the drive.
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*
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* In format mode, process is expected to
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* - do SDIOCSCSICOMMAND to supply cdb for next SCSI op
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* - do read or write as appropriate for cdb
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* - if i/o error, optionally do SDIOCSENSE to get completion
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* status and sense data from last scsi operation.
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*/
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struct scsi_fmt_cdb {
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int len; /* cdb length (in bytes) */
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u_char cdb[28]; /* cdb to use on next read/write */
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};
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struct scsi_fmt_sense {
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u_int status; /* completion status of last op */
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u_char sense[28]; /* sense data (if any) from last op */
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};
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#define SDIOCSFORMAT _IOW('S', 0x1, int)
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#define SDIOCGFORMAT _IOR('S', 0x2, int)
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#define SDIOCSCSICOMMAND _IOW('S', 0x3, struct scsi_fmt_cdb)
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#define SDIOCSENSE _IOR('S', 0x4, struct scsi_fmt_sense)
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