1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)wdreg.h 7.1 (Berkeley) 5/9/91 37 * $Id: wdcreg.h,v 1.2 1993/05/22 08:01:47 cgd Exp $ 38 */ 39 40 /* 41 * Disk Controller register definitions. 42 */ 43 #define wd_data 0x0 /* data register (R/W - 16 bits) */ 44 #define wd_error 0x1 /* error register (R) */ 45 #define wd_precomp wd_error /* write precompensation (W) */ 46 #define wd_seccnt 0x2 /* sector count (R/W) */ 47 #define wd_sector 0x3 /* first sector number (R/W) */ 48 #define wd_cyl_lo 0x4 /* cylinder address, low byte (R/W) */ 49 #define wd_cyl_hi 0x5 /* cylinder address, high byte (R/W)*/ 50 #define wd_sdh 0x6 /* sector size/drive/head (R/W)*/ 51 #define wd_command 0x7 /* command register (W) */ 52 #define wd_status wd_command /* immediate status (R) */ 53 54 #define wd_altsts 0x206 /*alternate fixed disk status(via 1015) (R)*/ 55 #define wd_ctlr 0x206 /*fixed disk controller control(via 1015) (W)*/ 56 #define WDCTL_4BIT 0x8 /* use four head bits (wd1003) */ 57 #define WDCTL_RST 0x4 /* reset the controller */ 58 #define WDCTL_IDS 0x2 /* disable controller interrupts */ 59 #define wd_digin 0x207 /* disk controller input(via 1015) (R)*/ 60 61 /* 62 * Status Bits. 63 */ 64 #define WDCS_BUSY 0x80 /* Controller busy bit. */ 65 #define WDCS_READY 0x40 /* Selected drive is ready */ 66 #define WDCS_WRTFLT 0x20 /* Write fault */ 67 #define WDCS_SEEKCMPLT 0x10 /* Seek complete */ 68 #define WDCS_DRQ 0x08 /* Data request bit. */ 69 #define WDCS_ECCCOR 0x04 /* ECC correction made in data */ 70 #define WDCS_INDEX 0x02 /* Index pulse from selected drive */ 71 #define WDCS_ERR 0x01 /* Error detect bit. */ 72 73 #define WDCS_BITS "\020\010busy\006rdy\006wrtflt\005seekdone\004drq\003ecc_cor\002index\001err" 74 75 #define WDERR_BITS "\020\010badblk\007uncorr\006id_crc\005no_id\003abort\002tr000\001no_dam" 76 77 /* 78 * Commands for Disk Controller. 79 */ 80 #define WDCC_RESTORE 0x10 /* disk restore code -- resets cntlr */ 81 82 #define WDCC_READ 0x20 /* disk read code */ 83 #define WDCC_WRITE 0x30 /* disk write code */ 84 #define WDCC__LONG 0x02 /* modifier -- access ecc bytes */ 85 #define WDCC__NORETRY 0x01 /* modifier -- no retrys */ 86 87 #define WDCC_FORMAT 0x50 /* disk format code */ 88 #define WDCC_DIAGNOSE 0x90 /* controller diagnostic */ 89 #define WDCC_IDC 0x91 /* initialize drive command */ 90 91 #define WDCC_EXTDCMD 0xE0 /* send extended command */ 92 #define WDCC_READP 0xEC /* read parameters from controller */ 93 #define WDCC_CACHEC 0xEF /* cache control */ 94 95 #define WD_STEP 0 /* winchester- default 35us step */ 96 97 #define WDSD_IBM 0xa0 /* forced to 512 byte sector, ecc */ 98 99 100 #ifdef KERNEL 101 /* 102 * read parameters command returns this: 103 */ 104 struct wdparams { 105 /* drive info */ 106 short wdp_config; /* general configuration */ 107 short wdp_fixedcyl; /* number of non-removable cylinders */ 108 short wdp_removcyl; /* number of removable cylinders */ 109 short wdp_heads; /* number of heads */ 110 short wdp_unfbytespertrk; /* number of unformatted bytes/track */ 111 short wdp_unfbytes; /* number of unformatted bytes/sector */ 112 short wdp_sectors; /* number of sectors */ 113 short wdp_minisg; /* minimum bytes in inter-sector gap*/ 114 short wdp_minplo; /* minimum bytes in postamble */ 115 short wdp_vendstat; /* number of words of vendor status */ 116 /* controller info */ 117 char wdp_cnsn[20]; /* controller serial number */ 118 short wdp_cntype; /* controller type */ 119 #define WDTYPE_SINGLEPORTSECTOR 1 /* single port, single sector buffer */ 120 #define WDTYPE_DUALPORTMULTI 2 /* dual port, multiple sector buffer */ 121 #define WDTYPE_DUALPORTMULTICACHE 3 /* above plus track cache */ 122 short wdp_cnsbsz; /* sector buffer size, in sectors */ 123 short wdp_necc; /* ecc bytes appended */ 124 char wdp_rev[8]; /* firmware revision */ 125 char wdp_model[40]; /* model name */ 126 short wdp_nsecperint; /* sectors per interrupt */ 127 short wdp_usedmovsd; /* can use double word read/write? */ 128 }; 129 130 /* 131 * wd driver entry points 132 */ 133 int wdprobe(struct isa_device *); 134 int wdattach(struct isa_device *); 135 int wdstrategy(struct buf *); 136 void wdintr(struct intrframe); 137 int wdopen(dev_t, int, int, struct proc *); 138 int wdclose(dev_t dev, int flags, int fmt); 139 int wdioctl(dev_t, int, caddr_t, int); 140 /* int wdformat(struct buf *bp); */ 141 int wdsize(dev_t); 142 int wddump(dev_t); 143 144 #endif KERNEL 145