/*- * 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. * * $FreeBSD$ */ /* 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 */ #define ATA_FLAG_88 4 /* word 88 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 masterpasswdrev; u_int16_t masterhwres :8; u_int16_t slavehwres :5; u_int16_t cblid :1; u_int16_t reserved93_1415 :2; int16_t reserved94[32]; int16_t rmvstat; int16_t securstat; int16_t reserved129[30]; int16_t cfapwrmode; int16_t reserved161[84]; int16_t integrity; }; /* structure describing an ATA disk */ struct ad_softc { struct ata_softc *controller; /* ptr to parent ctrl */ struct ata_params *ata_parm; /* ata device params */ int32_t unit; /* ATA_MASTER or ATA_SLAVE */ int32_t lun; /* logical unit number */ u_int32_t total_secs; /* total # of sectors (LBA) */ u_int8_t heads; u_int8_t sectors; 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 disk disk; /* disklabel/slice stuff */ }; 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 */ struct callout_handle timeout_handle; /* handle for untimeout */ int32_t retries; /* retry count */ int32_t flags; #define AR_F_READ 0x0001 #define AR_F_ERROR 0x0002 #define AR_F_DMA_USED 0x0004 #define AR_F_FORCE_PIO 0x0008 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 *); void ad_reinit(struct ad_softc *);