134 lines
5.1 KiB
C
134 lines
5.1 KiB
C
/*-
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* Copyright (c) 1998,1999 Søren Schmidt
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* All rights reserved.
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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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* without modification, immediately at the beginning of the file.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: ata-disk.h,v 1.3 1999/03/05 09:43:30 sos Exp $
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*/
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/* ATA device parameter information */
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struct ata_params {
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int16_t config; /* general configuration bits */
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u_int16_t cylinders; /* number of cylinders */
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int16_t reserved2;
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u_int16_t heads; /* # heads */
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int16_t unfbytespertrk; /* # unformatted bytes/track */
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int16_t unfbytes; /* # unformatted bytes/sector */
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u_int16_t sectors; /* # sectors/track */
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int16_t vendorunique[3];
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int8_t serial[20]; /* serial number */
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int16_t buffertype; /* buffer type */
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#define ATA_BT_SINGLEPORTSECTOR 1 /* 1 port, 1 sector buffer */
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#define ATA_BT_DUALPORTMULTI 2 /* 2 port, mult sector buffer */
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#define ATA_BT_DUALPORTMULTICACHE 3 /* above plus track cache */
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int16_t buffersize; /* buf size, 512-byte units */
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int16_t necc; /* ecc bytes appended */
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int8_t revision[8]; /* firmware revision */
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int8_t model[40]; /* model name */
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int8_t nsecperint; /* sectors per interrupt */
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int8_t vendorunique1;
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int16_t usedmovsd; /* double word read/write? */
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int8_t vendorunique2;
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int8_t capability; /* various capability bits */
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int16_t cap_validate; /* validation for above */
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int8_t vendorunique3;
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int8_t opiomode; /* PIO modes 0-2 */
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int8_t vendorunique4;
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int8_t odmamode; /* old DMA modes, not ATA-3 */
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int16_t atavalid; /* fields valid */
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int16_t currcyls;
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int16_t currheads;
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int16_t currsectors;
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int16_t currsize0;
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int16_t currsize1;
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int8_t currmultsect;
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int8_t multsectvalid;
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int32_t lbasize;
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int16_t dmasword; /* obsolete in ATA-3 */
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int16_t dmamword; /* multiword DMA modes */
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int16_t eidepiomodes; /* advanced PIO modes */
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int16_t eidedmamin; /* fastest DMA timing */
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int16_t eidedmanorm; /* recommended DMA timing */
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int16_t eidepioblind; /* fastest possible blind PIO */
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int16_t eidepioacked; /* fastest possible IORDY PIO */
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int16_t reserved69;
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int16_t reserved70;
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int16_t reserved71;
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int16_t reserved72;
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int16_t reserved73;
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int16_t reserved74;
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int16_t queuelen;
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int16_t reserved76;
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int16_t reserved77;
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int16_t reserved78;
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int16_t reserved79;
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int16_t versmajor;
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int16_t versminor;
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int16_t featsupp1;
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int16_t featsupp2;
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int16_t featsupp3;
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int16_t featenab1;
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int16_t featenab2;
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int16_t featenab3;
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int16_t udmamode; /* UltraDMA modes */
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int16_t erasetime;
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int16_t enherasetime;
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int16_t apmlevel;
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int16_t reserved92[34];
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int16_t rmvcap;
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int16_t securelevel;
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};
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/* Structure describing an ATA disk */
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struct ad_softc {
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struct ata_softc *controller; /* ptr to parent ctrl */
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struct ata_params *ata_parm; /* ata device params */
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struct diskslices *slices;
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int32_t unit; /* ATA_MASTER or ATA_SLAVE */
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int32_t lun; /* logical unit number */
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u_int16_t cylinders; /* disk geometry (probed) */
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u_int8_t heads;
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u_int8_t sectors;
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u_int32_t total_secs; /* total # of sectors (LBA) */
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u_int32_t transfersize; /* size of each transfer */
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u_int32_t currentsize; /* size of current transfer */
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struct buf_queue_head queue; /* head of request queue */
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u_int32_t bytecount; /* bytes to transfer */
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u_int32_t donecount; /* bytes transferred */
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u_int32_t active; /* active processing request */
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u_int32_t flags; /* drive flags */
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struct devstat stats; /* devstat entry */
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#define AD_F_LABELLING 0x0001
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#ifdef DEVFS
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void *cdevs_token;
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void *bdevs_token;
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#endif
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};
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void ad_transfer(struct buf *);
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int32_t ad_interrupt(struct buf *);
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