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wdvar.h revision 1.8 
      1 /*	$NetBSD: wdvar.h,v 1.8 2001/12/02 22:44:33 bouyer Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by the University of
     17  *	California, Berkeley and its contributors.
     18  * 4. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /* Params needed by the controller to perform an ATA bio */
     36 struct ata_bio {
     37     volatile u_int16_t flags; /* cmd flags */
     38 #define ATA_NOSLEEP 0x0001 /* Can't sleep */
     39 #define ATA_POLL    0x0002 /* poll for completion */
     40 #define ATA_ITSDONE 0x0004 /* the transfer is as done as it gets */
     41 #define ATA_SINGLE  0x0008 /* transfer has to be done in single-sector mode */
     42 #define ATA_LBA     0x0010 /* transfer uses LBA adressing */
     43 #define ATA_READ    0x0020 /* transfer is a read (otherwise a write) */
     44 #define ATA_CORR    0x0040 /* transfer had a corrected error */
     45     int multi; /* number of blocks to transfer in multi-mode */
     46     struct disklabel *lp; /* pointer to drive's label info */
     47     daddr_t blkno; /* block addr */
     48     daddr_t blkdone; /* number of blks transferred */
     49     daddr_t nblks; /* number of block currently transferring */
     50     int     nbytes; /* number of bytes currently transferring */
     51     long    bcount; /* total number of bytes */
     52     char*   databuf; /* data buffer adress */
     53     volatile int error;
     54 #define NOERROR 0 /* There was no error (r_error invalid) */
     55 #define ERROR   1 /* check r_error */
     56 #define ERR_DF	2 /* Drive fault */
     57 #define ERR_DMA 3 /* DMA error */
     58 #define TIMEOUT 4 /* device timed out */
     59 #define ERR_NODEV 5 /* device has been gone */
     60     u_int8_t r_error; /* copy of error register */
     61     daddr_t badsect[127];    /* 126 plus trailing -1 marker */
     62 };
     63 
     64 /*
     65  * ata_bustype. The first field has to be compatible with scsipi_bustype,
     66  * as it's used for autoconfig by both ata and atapi drivers
     67  */
     68 
     69 struct ata_bustype {
     70 	int bustype_type;	/* symbolic name of type */
     71 };
     72 /* bustype_type */
     73 /* #define SCSIPI_BUSTYPE_SCSI	0 */
     74 /* #define SCSIPI_BUSTYPE_ATAPI	1 */
     75 #define SCSIPI_BUSTYPE_ATA	2
     76 
     77 /*
     78  * describe an ATA device. Has to be compatible with scsipi_channel, so start
     79  * with a pointer to ata_bustype
     80  */
     81 struct ata_device {
     82 	const struct ata_bustype *adev_bustype;
     83 	int adev_channel;
     84 	int adev_openings;
     85 	struct ata_drive_datas *adev_drv_data;
     86 };
     87 
     88 int wdc_ata_bio __P((struct ata_drive_datas*, struct ata_bio*));
     89 
     90 void wddone __P((void *));
     91