/* $NetBSD: wdreg.h,v 1.13 1995/03/29 21:56:46 briggs Exp $ */ /*- * 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 0x000 /* data register (R/W - 16 bits) */ #define wd_error 0x001 /* error register (R) */ #define wd_precomp 0x001 /* write precompensation (W) */ #define wd_features 0x001 /* features (W) */ #define wd_seccnt 0x002 /* sector count (R/W) */ #define wd_sector 0x003 /* first sector number (R/W) */ #define wd_cyl_lo 0x004 /* cylinder address, low byte (R/W) */ #define wd_cyl_hi 0x005 /* cylinder address, high byte (R/W) */ #define wd_sdh 0x006 /* sector size/drive/head (R/W) */ #define wd_command 0x007 /* command register (W) */ #define wd_status 0x007 /* 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 0x08 /* use four head bits (wd1003) */ #define WDCTL_RST 0x04 /* reset the controller */ #define WDCTL_IDS 0x02 /* disable controller interrupts */ #define wd_digin 0x207 /* disk controller input (via 1015) (R) */ /* * Status bits. */ #define WDCS_BSY 0x80 /* busy */ #define WDCS_DRDY 0x40 /* drive ready */ #define WDCS_DWF 0x20 /* drive write fault */ #define WDCS_DSC 0x10 /* drive seek complete */ #define WDCS_DRQ 0x08 /* data request */ #define WDCS_CORR 0x04 /* corrected data */ #define WDCS_IDX 0x02 /* index */ #define WDCS_ERR 0x01 /* error */ #define WDCS_BITS "\020\010bsy\007drdy\006dwf\005dsc\004drq\003corr\002idx\001err" /* * Error bits. */ #define WDCE_BBK 0x80 /* bad block detected */ #define WDCE_UNC 0x40 /* uncorrectable data error */ #define WDCE_MC 0x20 /* media changed */ #define WDCE_IDNF 0x10 /* id not found */ #define WDCE_ABRT 0x08 /* aborted command */ #define WDCE_MCR 0x04 /* media change requested */ #define WDCE_TK0NF 0x02 /* track 0 not found */ #define WDCE_AMNF 0x01 /* address mark not found */ #define WDERR_BITS "\020\010bbk\007unc\006mc\005idnf\004mcr\003abrt\002tk0nf\001amnf" /* * Commands for Disk Controller. */ #define WDCC_RECAL 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_IDP 0x91 /* initialize drive parameters */ #define WDCC_READMULTI 0xc4 /* read multiple */ #define WDCC_WRITEMULTI 0xc5 /* write multiple */ #define WDCC_SETMULTI 0xc6 /* set multiple mode */ #define WDCC_READDMA 0xc8 /* read with DMA */ #define WDCC_WRITEDMA 0xca /* write with DMA */ #define WDCC_ACKMC 0xdb /* acknowledge media change */ #define WDCC_LOCK 0xde /* lock drawer */ #define WDCC_UNLOCK 0xdf /* unlock drawer */ #define WDCC_IDENTIFY 0xec /* read parameters from controller */ #define WDCC_CACHEC 0xef /* cache control */ #define WDSD_IBM 0xa0 /* forced to 512 byte sector, ecc */ #define WDSD_CHS 0x00 /* cylinder/head/sector addressing */ #define WDSD_LBA 0x40 /* logical block addressing */ #ifdef _KERNEL /* * read parameters command returns this: */ struct wdparams { /* drive info */ short wdp_config; /* general configuration */ #define WD_CFG_REMOVABLE 0x0080 #define WD_CFG_FIXED 0x0040 short wdp_cylinders; /* number of non-removable cylinders */ char __reserved1[2]; short wdp_heads; /* number of heads */ short wdp_unfbytespertrk; /* number of unformatted bytes/track */ short wdp_unfbytespersec; /* number of unformatted bytes/sector */ short wdp_sectors; /* number of sectors */ char wdp_vendor1[6]; /* controller info */ char wdp_serial[20]; /* serial number */ short wdp_buftype; /* buffer type */ #define WD_BUF_SINGLEPORTSECTOR 1 /* single port, single sector buffer */ #define WD_BUF_DUALPORTMULTI 2 /* dual port, multiple sector buffer */ #define WD_BUF_DUALPORTMULTICACHE 3 /* above plus track cache */ short wdp_bufsize; /* buffer size, in 512-byte units */ short wdp_eccbytes; /* ecc bytes appended */ char wdp_revision[8]; /* firmware revision */ char wdp_model[40]; /* model name */ u_char wdp_maxmulti; /* maximum sectors per interrupt */ char wdp_vendor2[1]; short wdp_usedmovsd; /* can use double word read/write? */ char wdp_vendor3[1]; char wdp_capabilities; /* capability flags */ #define WD_CAP_LBA 0x02 #define WD_CAP_DMA 0x01 char __reserved2[2]; char wdp_vendor4[1]; char wdp_piotiming; /* PIO timing mode */ char wdp_vendor5[1]; char wdp_dmatiming; /* DMA timing mode */ }; #endif /* _KERNEL */