262 lines
10 KiB
C
262 lines
10 KiB
C
/*
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* Copyright (c) 1992 The Regents of the University of California.
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* All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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, Lawrence Berkeley Laboratories.
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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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* %W% (Berkeley) %G%
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*
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* from: Header: disktape.h,v 1.4 93/04/30 00:02:16 torek Exp (LBL)
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* $Id: disktape.h,v 1.1 1993/10/27 17:48:34 deraadt Exp $
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*/
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/*
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* Commands common to disk and tape devices, but not other SCSI devices.
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*/
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#define CMD_MODE_SELECT6 0x15 /* mode select (6 byte cdb) */
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#define CMD_MODE_SENSE6 0x1a /* mode sense (6 byte cdb) */
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#define CMD_MODE_SELECT10 0x55 /* mode select (10 byte cdb) */
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#define CMD_MODE_SENSE10 0x5a /* mode sense (10 byte cdb) */
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/*
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* Structure of MODE SELECT commands (i.e., the cdb; 6 & 10 byte flavors).
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* The only difference is that the 10-byte version can give more parameter
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* bytes.
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*/
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struct scsi_cdb_modeselect6 {
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u_char cdb_cmd, /* 0x15 */
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cdb_lun_flags, /* LUN + flags */
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cdb_xxx[2], /* reserved */
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cdb_len, /* parameter list length */
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cdb_ctrl; /* control byte */
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};
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struct scsi_cdb_modeselect10 {
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u_char cdb_cmd, /* 0x55 */
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cdb_lun_flags, /* LUN + flags */
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cdb_xxx[5], /* reserved */
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cdb_lenh, /* parameter list length (MSB) */
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cdb_lenl, /* parameter list length (LSB) */
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cdb_ctrl; /* control byte */
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};
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/* flags in SCSI_MODESELECT commands */
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#define SCSI_MSEL_SCSI1_DATA 0x00 /* SCSI-1 data format */
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#define SCSI_MSEL_SCSI2_DATA 0x10 /* SCSI-2 data format */
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#define SCSI_MSEL_DONTSAVE 0x00 /* don't save pages */
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#define SCSI_MSEL_SAVEPAGES 0x01 /* save mode pages */
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/*
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* Structure of MODE SENSE command (i.e., the cdb; 6 & 10 byte flavors).
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* Again, the 10-byte version merely allows more parameter bytes.
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* Note that these lengths include the MODE SENSE headers, while those
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* for individual mode pages do not. (Consistency? What's that?)
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*/
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struct scsi_cdb_modesense6 {
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u_char cdb_cmd, /* 0x1a */
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cdb_lun_flags, /* logical unit number + flags */
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cdb_pcc, /* page control & code */
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cdb_xxx, /* reserved */
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cdb_len, /* allocation length */
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cdb_ctrl; /* control byte */
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};
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struct scsi_cdb_modesense10 {
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u_char cdb_cmd, /* 0x5a */
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cdb_lun_flags, /* logical unit number + flags */
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cdb_pcc, /* page control & code */
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cdb_xxx[4], /* reserved */
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cdb_lenh, /* allocation length (MSB) */
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cdb_lenl, /* allocation length (MSB) */
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cdb_ctrl; /* control byte */
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};
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/* flags in SCSI_MODESENSE commands */
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#define SCSI_MSENSE_DBD 0x08 /* device returns db descriptors */
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/* page controls */
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#define SCSI_MSENSE_PCTL_CUR 0x00 /* return current parameters */
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#define SCSI_MSENSE_PCTL_VAR 0x40 /* return variable parameters */
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#define SCSI_MSENSE_PCTL_DFLT 0x80 /* return default parameters */
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#define SCSI_MSENSE_PCTL_SAVED 0xc0 /* return saved parameters */
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/*
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* Both MODE_SENSE and MODE_SELECT use a Mode Parameter Header,
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* followed by an array of Block Descriptors, followed by an array
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* of Pages. We define structures for the Block Descriptor and Page
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* header first, then the two (6 and 10 byte) Mode Parameter headers
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* (not including the Block Descriptor(s) and any mode pages themselves).
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*/
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struct scsi_ms_bd { /* mode sense/select block descriptor */
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u_char bd_dc, /* density code (tapes only) */
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bd_nbh, /* number of blocks (MSB) */
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bd_nbm, /* number of blocks */
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bd_nbl, /* number of blocks (LSB) */
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bd_xxx, /* reserved */
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bd_blh, /* block length (MSB) */
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bd_blm, /* block length */
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bd_bll; /* block length (LSB) */
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};
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struct scsi_ms_page_hdr { /* mode sense/select page header */
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u_char mp_psc, /* saveable flag + code */
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mp_len; /* parameter length (excludes this header) */
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/* followed by parameters */
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};
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#define SCSI_MS_MP_SAVEABLE 0x80 /* page can be saved */
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/* 0x40 reserved */
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#define SCSI_MS_PC_MASK 0x3f /* page code mask */
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/*
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* Structure of returned mode sense6 / mode select6 (hence "ms6") data.
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*/
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struct scsi_ms6 {
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u_char ms_len, /* total sense data length */
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ms_mt, /* medium type (disks only?) */
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ms_dsp, /* device specific parameter */
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ms_bdl; /* block descriptor length (bytes) */
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/* followed by block descriptors, if any */
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/* followed by pages, if any */
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};
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/*
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* Same, but for ms10.
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*/
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struct scsi_ms10 {
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u_char ms_lenh, /* total sense length (MSB) */
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ms_lenl, /* total sense length (LSB) */
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ms_mt, /* medium type (disks only?) */
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ms_dsp, /* device specific parameter */
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ms_xxx[2], /* reserved */
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ms_bdlh, /* block descriptor length (bytes) (MSB) */
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ms_bdll; /* block descriptor length (bytes) (LSB) */
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/* followed by block descriptors, if any */
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/* followed by pages, if any */
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};
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/* values for the Medium Type field - disks */
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#define SCSI_MS_MT_DEFAULT 0x00 /* whatever is current */
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#define SCSI_MS_MT_SS 0x01 /* single sided, unspecified medium */
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#define SCSI_MS_MT_DS 0x02 /* double sided, unspecified medium */
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#define SCSI_MS_MT_8SSSD 0x05 /* 8" floppy, SSSD (X3.73-1980) */
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#define SCSI_MS_MT_8DSSD 0x06 /* 8" floppy, DSSD (X3B8-140) */
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#define SCSI_MS_MT_8SSDD 0x09 /* 8" floppy, SSDD (X3B8/78-139) */
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#define SCSI_MS_MT_8DSDD 0x0a /* 8" floppy, DSDD (X3.121-1984) */
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#define SCSI_MS_MT_5SSSD 0x0d /* 5.25" floppy, SSSD (X3.82-1980) */
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#define SCSI_MS_MT_5DSDD 0x12 /* 5.25" floppy, DSDD (X3.125-1984) */
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#define SCSI_MS_MT_5DSDD96 0x16 /* 5.25", DSDD, 96tpi (X3.126-198X) */
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#define SCSI_MS_MT_5DSQD 0x1a /* 5.25", DSQD, 96tpi (DIS 8630) */
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#define SCSI_MS_MT_3DS 0x1e /* 3.5", double sided (X3.137-198X) */
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/* values for the Medium Type field - tapes */
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#define SCSI_MS_MT_QIC_12T 0x40 /* 0.25", 12 tracks */
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#define SCSI_MS_MT_QIC_24T 0x44 /* 0.25", 24 tracks */
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/* values for the Device Specific Parameter field */
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#define SCSI_MS_DSP_WP 0x80 /* write protect (both disk & tape) */
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/* if disk */
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#define SCSI_MS_DSP_DPO_FUA 0x10 /* cache flags DPO, FUA supported */
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/* if tape */
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#define SCSI_MS_DSP_UNBUFFERED 0x00 /* unbuffered writes */
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#define SCSI_MS_DSP_BUFFERED 0x10 /* buffered writes */
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#define SCSI_MS_DSP_BUF2 0x20 /* buffered, for shared tapes */
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/* 0x30..0x70 reserved */
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#define SCSI_MS_DSP_SPEED_DFLT 0x00 /* use device default speed */
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#define SCSI_MS_DSP_SPEED_MASK 0x0f /* mask for non-default speeds */
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/* values for the Density Code field - tapes */
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#define SCSI_MS_DC_DEFAULT 0 /* use device default density */
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#define SCSI_MS_DC_9T_800BPI 1 /* 9 track, 800 bpi */
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#define SCSI_MS_DC_9T_1600BPI 2 /* 9 track, 1600 bpi */
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#define SCSI_MS_DC_9T_6250BPI 3 /* 9 track, 6250 bpi */
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#define SCSI_MS_DC_QIC_XX1 4 /* QIC-11? 4 or 9 track, 8000 bpi */
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#define SCSI_MS_DC_QIC_XX2 5 /* QIC-11? 4 or 9 track, 8000 bpi */
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#define SCSI_MS_DC_9T_3200BPI 6 /* 9 track, 3200 bpi */
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#define SCSI_MS_DC_QIC_XX3 7 /* QIC, 4 track, 6400 bpi */
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#define SCSI_MS_DC_CS_XX4 8 /* cassette 4 track, 8000 bpi */
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#define SCSI_MS_DC_HIC_XX5 9 /* half inch cartridge, 18 track */
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#define SCSI_MS_DC_HIC_XX6 10 /* HIC, 22 track, 6667 bpi */
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#define SCSI_MS_DC_QIC_XX7 11 /* QIC, 4 track, 1600 bpi */
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#define SCSI_MS_DC_HIC_XX8 12 /* HIC, 24 track, 12690 bpi */
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#define SCSI_MS_DC_HIC_XX9 13 /* HIC, 24 track, 25380 bpi */
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/*
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* Common page codes.
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*/
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/* 0x01 device specific */
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#define SCSI_MS_PC_DR 0x02 /* disconnect/reconnect control */
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/* 0x03..0x08 device specific */
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#define SCSI_MS_PC_PDEV 0x09 /* peripheral device page */
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#define SCSI_MS_PC_CTLMODE 0x0a /* control mode page */
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/* 0x0b..0x1f device specific */
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/* 0x20..0x3e vendor specific */
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#define SCSI_MS_PC_ALL 0x3f /* all pages */
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/*
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* Structure of a Disconnect/Reconnect Control mode page.
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*/
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struct scsi_page_dr {
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u_char dr_full, /* buffer full ratio */
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dr_empty, /* buffer empty ratio */
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dr_inacth, /* bus inactivity timeout (MSB) */
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dr_inactl, /* bus inactivity timeout (LSB) */
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dr_disconh, /* disconnect time limit (MSB) */
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dr_disconl, /* disconnect time limit (LSB) */
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dr_conh, /* connect time limit (MSB) */
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dr_conl, /* connect time limit (LSB) */
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dr_bursth, /* maximum burst size (MSB) */
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dr_burstl, /* maximum burst size (LSB) */
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dr_dtdc, /* Data Transfer Disconnect Control (below) */
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dr_xxx[3]; /* reserved */
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};
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/* Data Transfer Disconnect Control */
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#define SCSI_DR_DTDC_MASK 0x03 /* mask for valid bits */
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#define SCSI_DR_DTDC_NONE 0x00 /* no control */
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#define SCSI_DR_DTDC_NOTDATA 0x01 /* never during data transfer */
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#define SCSI_DR_DTDC_RSVD 0x02 /* reserved */
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#define SCSI_DR_DTDC_NOTD2 0x03 /* never during/after data transfer */
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/*
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* Structure of a PREVENT/ALLOW MEDIUM REMOVAL command.
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*/
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struct scsi_cdb_pamr {
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u_char cdb_cmd, /* 0x1e */
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cdb_lun_xxx, /* logical unit number + reserved */
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cdb_xxx1, /* reserved */
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cdb_xxx2, /* reserved */
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cdb_prevent, /* 1=prevent, 0=allow */
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cdb_ctrl;
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};
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