101 lines
4.2 KiB
C
101 lines
4.2 KiB
C
/* $NetBSD: wdvar.h,v 1.12 2002/04/23 20:41:14 bouyer Exp $ */
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/*
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* Copyright (c) 1998, 2001 Manuel Bouyer.
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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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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* 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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*/
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/* Params needed by the controller to perform an ATA bio */
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struct ata_bio {
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volatile u_int16_t flags;/* cmd flags */
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#define ATA_NOSLEEP 0x0001 /* Can't sleep */
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#define ATA_POLL 0x0002 /* poll for completion */
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#define ATA_ITSDONE 0x0004 /* the transfer is as done as it gets */
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#define ATA_SINGLE 0x0008 /* transfer must be done in singlesector mode */
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#define ATA_LBA 0x0010 /* transfer uses LBA adressing */
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#define ATA_READ 0x0020 /* transfer is a read (otherwise a write) */
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#define ATA_CORR 0x0040 /* transfer had a corrected error */
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#define ATA_LBA48 0x0080 /* transfer uses 48-bit LBA adressing */
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int multi; /* # of blocks to transfer in multi-mode */
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struct disklabel *lp; /* pointer to drive's label info */
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daddr_t blkno; /* block addr */
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daddr_t blkdone;/* number of blks transferred */
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daddr_t nblks; /* number of block currently transferring */
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int nbytes; /* number of bytes currently transferring */
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long bcount; /* total number of bytes */
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char *databuf;/* data buffer adress */
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volatile int error;
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#define NOERROR 0 /* There was no error (r_error invalid) */
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#define ERROR 1 /* check r_error */
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#define ERR_DF 2 /* Drive fault */
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#define ERR_DMA 3 /* DMA error */
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#define TIMEOUT 4 /* device timed out */
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#define ERR_NODEV 5 /* device has been gone */
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u_int8_t r_error;/* copy of error register */
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daddr_t badsect[127];/* 126 plus trailing -1 marker */
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};
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/*
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* ata_bustype. The first field has to be compatible with scsipi_bustype,
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* as it's used for autoconfig by both ata and atapi drivers
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*/
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struct ata_bustype {
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int bustype_type; /* symbolic name of type */
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int (*ata_bio) __P((struct ata_drive_datas*, struct ata_bio *));
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void (*ata_reset_channel) __P((struct ata_drive_datas *));
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int (*ata_exec_command) __P((struct ata_drive_datas *,
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struct wdc_command *));
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#define WDC_COMPLETE 0x01
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#define WDC_QUEUED 0x02
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#define WDC_TRY_AGAIN 0x03
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int (*ata_get_params) __P((struct ata_drive_datas*, u_int8_t,
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struct ataparams *));
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int (*ata_addref) __P((struct ata_drive_datas *));
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void (*ata_delref) __P((struct ata_drive_datas *));
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void (*ata_killpending) __P((struct ata_drive_datas *));
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};
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/* bustype_type */
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/* #define SCSIPI_BUSTYPE_SCSI 0 */
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/* #define SCSIPI_BUSTYPE_ATAPI 1 */
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#define SCSIPI_BUSTYPE_ATA 2
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/*
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* describe an ATA device. Has to be compatible with scsipi_channel, so start
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* with a pointer to ata_bustype
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*/
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struct ata_device {
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const struct ata_bustype *adev_bustype;
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int adev_channel;
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int adev_openings;
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struct ata_drive_datas *adev_drv_data;
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};
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void wddone __P((void *));
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