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/*-
* Copyright (c) 1998,1999 Søren Schmidt
* 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,
* without modification, immediately at the beginning of the file.
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $Id: ata-disk.h,v 1.7 1999/06/25 09:03:00 sos Exp $
*/
/* ATA device parameter information */
struct ata_params {
int16_t config; /* general configuration bits */
u_int16_t cylinders; /* number of cylinders */
int16_t reserved2;
u_int16_t heads; /* # heads */
int16_t unfbytespertrk; /* # unformatted bytes/track */
int16_t unfbytes; /* # unformatted bytes/sector */
u_int16_t sectors; /* # sectors/track */
int16_t vendorunique0[3];
int8_t serial[20]; /* serial number */
int16_t buffertype; /* buffer type */
#define ATA_BT_SINGLEPORTSECTOR 1 /* 1 port, 1 sector buffer */
#define ATA_BT_DUALPORTMULTI 2 /* 2 port, mult sector buffer */
#define ATA_BT_DUALPORTMULTICACHE 3 /* above plus track cache */
int16_t buffersize; /* buf size, 512-byte units */
int16_t necc; /* ecc bytes appended */
int8_t revision[8]; /* firmware revision */
int8_t model[40]; /* model name */
int8_t nsecperint; /* sectors per interrupt */
int8_t vendorunique1;
int16_t usedmovsd; /* double word read/write? */
u_int8_t vendorcap; /* vendor capabilities */
u_int8_t dmaflag :1; /* DMA supported - always 1 */
u_int8_t lbaflag :1; /* LBA supported - always 1 */
u_int8_t iordydis :1; /* IORDY may be disabled */
u_int8_t iordyflag :1; /* IORDY supported */
u_int8_t :1;
u_int8_t standby :1; /* standby timer supported */
u_int8_t :1;
u_int8_t :1;
int16_t capvalidate; /* validation for above */
int8_t vendorunique3;
int8_t opiomode; /* PIO modes 0-2 */
int8_t vendorunique4;
int8_t odmamode; /* old DMA modes, not ATA-3 */
int16_t atavalid; /* fields valid */
#define ATA_FLAG_54_58 1 /* words 54-58 valid */
#define ATA_FLAG_64_70 2 /* words 64-70 valid */
int16_t currcyls;
int16_t currheads;
int16_t currsectors;
int16_t currsize0;
int16_t currsize1;
int8_t currmultsect;
int8_t multsectvalid;
int32_t lbasize;
int16_t sdmamodes; /* singleword DMA modes */
int16_t wdmamodes; /* multiword DMA modes */
int16_t apiomodes; /* advanced PIO modes */
u_int16_t mwdmamin; /* min. M/W DMA time/word ns */
u_int16_t mwdmarec; /* rec. M/W DMA time ns */
u_int16_t pioblind; /* min. PIO cycle w/o flow */
u_int16_t pioiordy; /* min. PIO cycle IORDY flow */
int16_t reserved69;
int16_t reserved70;
u_int16_t rlsovlap; /* rel time (us) for overlap */
u_int16_t rlsservice; /* rel time (us) for service */
int16_t reserved73;
int16_t reserved74;
int16_t queuelen;
int16_t reserved76;
int16_t reserved77;
int16_t reserved78;
int16_t reserved79;
int16_t versmajor;
int16_t versminor;
int16_t featsupp1;
int16_t featsupp2;
int16_t featsupp3;
int16_t featenab1;
int16_t featenab2;
int16_t featenab3;
int16_t udmamodes; /* UltraDMA modes */
int16_t erasetime;
int16_t enherasetime;
int16_t apmlevel;
int16_t reserved92[34];
int16_t rmvcap;
int16_t securelevel;
};
/* Structure describing an ATA disk */
struct ad_softc {
struct ata_softc *controller; /* ptr to parent ctrl */
struct ata_params *ata_parm; /* ata device params */
struct diskslices *slices;
int32_t unit; /* ATA_MASTER or ATA_SLAVE */
int32_t lun; /* logical unit number */
u_int16_t cylinders; /* disk geometry (probed) */
u_int8_t heads;
u_int8_t sectors;
u_int32_t total_secs; /* total # of sectors (LBA) */
u_int32_t transfersize; /* size of each transfer */
u_int32_t num_tags; /* number of tags supported */
u_int32_t flags; /* drive flags */
#define AD_F_LABELLING 0x0001
#define AD_F_LBA_ENABLED 0x0002
#define AD_F_32B_ENABLED 0x0004
#define AD_F_DMA_ENABLED 0x0008
#define AD_F_TAG_ENABLED 0x0010
struct buf_queue_head queue; /* head of request queue */
struct devstat stats; /* devstat entry */
};
struct ad_request {
struct ad_softc *device; /* ptr to parent device */
u_int32_t blockaddr; /* block number */
u_int32_t bytecount; /* bytes to transfer */
u_int32_t donecount; /* bytes transferred */
u_int32_t currentsize; /* size of current transfer */
u_int32_t result; /* result code */
int32_t flags;
#define AR_F_READ 0x0001
#define AR_F_ERROR 0x0002
#define AR_F_DMA_USED 0x0004
int8_t *data; /* pointer to data buf */
struct buf *bp; /* associated buf ptr */
u_int8_t tag; /* tag ID of this request */
TAILQ_ENTRY(ad_request) chain; /* list management */
};
void ad_transfer(struct ad_request *);
int32_t ad_interrupt(struct ad_request *);
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