diff options
author | rgrimes <rgrimes@FreeBSD.org> | 1993-06-12 14:58:17 +0000 |
---|---|---|
committer | rgrimes <rgrimes@FreeBSD.org> | 1993-06-12 14:58:17 +0000 |
commit | 25062ba061871945759b3baa833fe64969383e40 (patch) | |
tree | 2d1c31051ed0dbaad984013c9fe695b1a01e1c39 /sys/i386/isa/wdreg.h | |
parent | f078b88a160c467761b3f3641f05dfd0aa3f7753 (diff) | |
download | FreeBSD-src-25062ba061871945759b3baa833fe64969383e40.zip FreeBSD-src-25062ba061871945759b3baa833fe64969383e40.tar.gz |
Initial import, 0.1 + pk 0.2.4-B1
Diffstat (limited to 'sys/i386/isa/wdreg.h')
-rw-r--r-- | sys/i386/isa/wdreg.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/sys/i386/isa/wdreg.h b/sys/i386/isa/wdreg.h new file mode 100644 index 0000000..d938915 --- /dev/null +++ b/sys/i386/isa/wdreg.h @@ -0,0 +1,143 @@ +/*- + * Copyright (c) 1991 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * 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. + * + * @(#)wdreg.h 7.1 (Berkeley) 5/9/91 + */ + +/* + * Disk Controller register definitions. + */ +#define wd_data 0x0 /* data register (R/W - 16 bits) */ +#define wd_error 0x1 /* error register (R) */ +#define wd_precomp wd_error /* write precompensation (W) */ +#define wd_seccnt 0x2 /* sector count (R/W) */ +#define wd_sector 0x3 /* first sector number (R/W) */ +#define wd_cyl_lo 0x4 /* cylinder address, low byte (R/W) */ +#define wd_cyl_hi 0x5 /* cylinder address, high byte (R/W)*/ +#define wd_sdh 0x6 /* sector size/drive/head (R/W)*/ +#define wd_command 0x7 /* command register (W) */ +#define wd_status wd_command /* immediate status (R) */ + +#define wd_altsts 0x206 /*alternate fixed disk status(via 1015) (R)*/ +#define wd_ctlr 0x206 /*fixed disk controller control(via 1015) (W)*/ +#define WDCTL_4BIT 0x8 /* use four head bits (wd1003) */ +#define WDCTL_RST 0x4 /* reset the controller */ +#define WDCTL_IDS 0x2 /* disable controller interrupts */ +#define wd_digin 0x207 /* disk controller input(via 1015) (R)*/ + +/* + * Status Bits. + */ +#define WDCS_BUSY 0x80 /* Controller busy bit. */ +#define WDCS_READY 0x40 /* Selected drive is ready */ +#define WDCS_WRTFLT 0x20 /* Write fault */ +#define WDCS_SEEKCMPLT 0x10 /* Seek complete */ +#define WDCS_DRQ 0x08 /* Data request bit. */ +#define WDCS_ECCCOR 0x04 /* ECC correction made in data */ +#define WDCS_INDEX 0x02 /* Index pulse from selected drive */ +#define WDCS_ERR 0x01 /* Error detect bit. */ + +#define WDCS_BITS "\020\010busy\006rdy\006wrtflt\005seekdone\004drq\003ecc_cor\002index\001err" + +#define WDERR_BITS "\020\010badblk\007uncorr\006id_crc\005no_id\003abort\002tr000\001no_dam" + +/* + * Commands for Disk Controller. + */ +#define WDCC_RESTORE 0x10 /* disk restore code -- resets cntlr */ + +#define WDCC_READ 0x20 /* disk read code */ +#define WDCC_WRITE 0x30 /* disk write code */ +#define WDCC__LONG 0x02 /* modifier -- access ecc bytes */ +#define WDCC__NORETRY 0x01 /* modifier -- no retrys */ + +#define WDCC_FORMAT 0x50 /* disk format code */ +#define WDCC_DIAGNOSE 0x90 /* controller diagnostic */ +#define WDCC_IDC 0x91 /* initialize drive command */ + +#define WDCC_EXTDCMD 0xE0 /* send extended command */ +#define WDCC_READP 0xEC /* read parameters from controller */ +#define WDCC_CACHEC 0xEF /* cache control */ + +#define WD_STEP 0 /* winchester- default 35us step */ + +#define WDSD_IBM 0xa0 /* forced to 512 byte sector, ecc */ + + +#ifdef KERNEL +/* + * read parameters command returns this: + */ +struct wdparams { + /* drive info */ + short wdp_config; /* general configuration */ + short wdp_fixedcyl; /* number of non-removable cylinders */ + short wdp_removcyl; /* number of removable cylinders */ + short wdp_heads; /* number of heads */ + short wdp_unfbytespertrk; /* number of unformatted bytes/track */ + short wdp_unfbytes; /* number of unformatted bytes/sector */ + short wdp_sectors; /* number of sectors */ + short wdp_minisg; /* minimum bytes in inter-sector gap*/ + short wdp_minplo; /* minimum bytes in postamble */ + short wdp_vendstat; /* number of words of vendor status */ + /* controller info */ + char wdp_cnsn[20]; /* controller serial number */ + short wdp_cntype; /* controller type */ +#define WDTYPE_SINGLEPORTSECTOR 1 /* single port, single sector buffer */ +#define WDTYPE_DUALPORTMULTI 2 /* dual port, multiple sector buffer */ +#define WDTYPE_DUALPORTMULTICACHE 3 /* above plus track cache */ + short wdp_cnsbsz; /* sector buffer size, in sectors */ + short wdp_necc; /* ecc bytes appended */ + char wdp_rev[8]; /* firmware revision */ + char wdp_model[40]; /* model name */ + short wdp_nsecperint; /* sectors per interrupt */ + short wdp_usedmovsd; /* can use double word read/write? */ +}; + +/* + * wd driver entry points + */ +int wdprobe(struct isa_device *); +int wdattach(struct isa_device *); +int wdstrategy(struct buf *); +void wdintr(struct intrframe); +int wdopen(dev_t, int, int, struct proc *); +int wdclose(dev_t dev, int flags, int fmt); +int wdioctl(dev_t, int, caddr_t, int); +/* int wdformat(struct buf *bp); */ +int wdsize(dev_t); +int wddump(dev_t); + +#endif KERNEL |