diff options
Diffstat (limited to 'sys/dev/ata/ata-disk.h')
| -rw-r--r-- | sys/dev/ata/ata-disk.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/sys/dev/ata/ata-disk.h b/sys/dev/ata/ata-disk.h new file mode 100644 index 0000000..359b83a --- /dev/null +++ b/sys/dev/ata/ata-disk.h @@ -0,0 +1,175 @@ +/*- + * 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 */ + + 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 *); |
