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- /*-
- * Copyright (c) 1982, 1988, 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * 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.
- *
- * @(#)saio.h 8.1 (Berkeley) 6/11/93
- */
-
- #include <sys/time.h>
-
- #include <ufs/ffs/fs.h>
- #include <ufs/ufs/dinode.h>
-
- #include <stand.att/saioctl.h>
- #include <stand.att/saerrno.h>
-
- #define UNIX "/vmunix"
-
- #ifndef NULL
- #define NULL 0
- #endif
-
- /* I/O block */
- struct iob {
- int i_flgs; /* flags (see F_*) */
- int i_adapt; /* adapter or bus */
- int i_ctlr; /* controller */
- int i_unit; /* pseudo device unit */
- int i_part; /* disk partition */
- daddr_t i_boff; /* block offset on device */
- daddr_t i_cyloff; /* cylinder offset on device */
- off_t i_offset; /* seek offset in file */
- dev_t i_dev; /* associated device */
- daddr_t i_bn; /* 1st block # of next read */
- char *i_ma; /* memory address of I/O buffer */
- int i_cc; /* character count of transfer */
- int i_error; /* error # return */
- int i_errcnt; /* error count for driver retries */
- int i_errblk; /* block # in error for error reporting */
- char i_buf[MAXBSIZE];/* I/O buffer */
- struct dinode i_ino; /* dinode, if file */
- union { /* file system super block info */
- struct fs ui_fs;
- char dummy[SBSIZE];
- } i_un;
- #define i_fs i_un.ui_fs
- #define i_bus i_adapt
- };
-
- #define SOPEN_MAX 4
- extern struct iob iob[SOPEN_MAX];
-
- /* Codes for sector header word 1 */
- #define HDR1_FMT22 0x1000 /* standard 16 bit format */
- #define HDR1_OKSCT 0xc000 /* sector ok */
- #define HDR1_SSF 0x2000 /* skip sector flag */
-
- /* I/O flag values */
- #define F_READ 0x0001 /* file opened for reading */
- #define F_WRITE 0x0002 /* file opened for writing */
- #define F_ALLOC 0x0004 /* buffer allocated */
- #define F_FILE 0x0008 /* file instead of device */
- #define F_NBSF 0x0010 /* no bad sector forwarding */
- #define F_ECCLM 0x0020 /* limit # of bits in ecc correction */
- #define F_SSI 0x0040 /* set skip sector inhibit */
- #define F_SEVRE 0x0080 /* Severe burnin (no retries, no ECC) */
-
- /* I/O types */
- #define F_RDDATA 0x0100 /* read data */
- #define F_WRDATA 0x0200 /* write data */
- #define F_HDR 0x0400 /* include header on next i/o */
- #define F_CHECK 0x0800 /* perform check of data read/write */
- #define F_HCHECK 0x1000 /* perform check of header and data */
-
- #define F_TYPEMASK 0xff00 /* I/O type mask */
-
- /* Lseek values */
- #define L_SET 0 /* absolute offset */
-
- /* Device switch */
- struct devsw {
- char *dv_name;
- int (*dv_strategy)();
- int (*dv_open)();
- int (*dv_close)();
- int (*dv_ioctl)();
- };
-
- extern struct devsw devsw[]; /* device array */
- extern int ndevs; /* number of elements in devsw[] */
-
- #ifdef COMPAT_42
- /*
- * Old drive description table.
- * still used by some drivers for now.
- */
- struct st {
- short nsect; /* # sectors/track */
- short ntrak; /* # tracks/surfaces/heads */
- short nspc; /* # sectors/cylinder */
- short ncyl; /* # cylinders */
- short *off; /* partition offset table (cylinders) */
- };
- #endif
-