Home | History | Annotate | Line # | Download | only in ata
wdvar.h revision 1.10
      1  1.10  bouyer /*	$NetBSD: wdvar.h,v 1.10 2001/12/03 00:20:23 bouyer Exp $	*/
      2   1.2  bouyer 
      3   1.2  bouyer /*
      4  1.10  bouyer  * Copyright (c) 1998, 2001 Manuel Bouyer.
      5   1.2  bouyer  *
      6   1.2  bouyer  * Redistribution and use in source and binary forms, with or without
      7   1.2  bouyer  * modification, are permitted provided that the following conditions
      8   1.2  bouyer  * are met:
      9   1.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     10   1.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     11   1.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     12   1.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     13   1.2  bouyer  *    documentation and/or other materials provided with the distribution.
     14   1.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     15   1.2  bouyer  *    must display the following acknowledgement:
     16   1.2  bouyer  *	This product includes software developed by the University of
     17   1.2  bouyer  *	California, Berkeley and its contributors.
     18   1.2  bouyer  * 4. Neither the name of the University nor the names of its contributors
     19   1.2  bouyer  *    may be used to endorse or promote products derived from this software
     20   1.2  bouyer  *    without specific prior written permission.
     21   1.2  bouyer  *
     22   1.6  bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23   1.6  bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24   1.6  bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25   1.6  bouyer  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26   1.6  bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27   1.6  bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28   1.6  bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29   1.6  bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30   1.6  bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31   1.6  bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32   1.2  bouyer  *
     33   1.2  bouyer  */
     34   1.2  bouyer 
     35   1.2  bouyer /* Params needed by the controller to perform an ATA bio */
     36   1.2  bouyer struct ata_bio {
     37   1.2  bouyer     volatile u_int16_t flags; /* cmd flags */
     38   1.2  bouyer #define ATA_NOSLEEP 0x0001 /* Can't sleep */
     39   1.2  bouyer #define ATA_POLL    0x0002 /* poll for completion */
     40   1.2  bouyer #define ATA_ITSDONE 0x0004 /* the transfer is as done as it gets */
     41   1.2  bouyer #define ATA_SINGLE  0x0008 /* transfer has to be done in single-sector mode */
     42   1.7     wiz #define ATA_LBA     0x0010 /* transfer uses LBA adressing */
     43   1.7     wiz #define ATA_READ    0x0020 /* transfer is a read (otherwise a write) */
     44   1.3  bouyer #define ATA_CORR    0x0040 /* transfer had a corrected error */
     45   1.3  bouyer     int multi; /* number of blocks to transfer in multi-mode */
     46   1.2  bouyer     struct disklabel *lp; /* pointer to drive's label info */
     47   1.2  bouyer     daddr_t blkno; /* block addr */
     48   1.7     wiz     daddr_t blkdone; /* number of blks transferred */
     49   1.7     wiz     daddr_t nblks; /* number of block currently transferring */
     50   1.7     wiz     int     nbytes; /* number of bytes currently transferring */
     51   1.2  bouyer     long    bcount; /* total number of bytes */
     52   1.2  bouyer     char*   databuf; /* data buffer adress */
     53   1.2  bouyer     volatile int error;
     54   1.2  bouyer #define NOERROR 0 /* There was no error (r_error invalid) */
     55   1.2  bouyer #define ERROR   1 /* check r_error */
     56   1.2  bouyer #define ERR_DF	2 /* Drive fault */
     57   1.2  bouyer #define ERR_DMA 3 /* DMA error */
     58   1.2  bouyer #define TIMEOUT 4 /* device timed out */
     59   1.4   enami #define ERR_NODEV 5 /* device has been gone */
     60   1.2  bouyer     u_int8_t r_error; /* copy of error register */
     61   1.2  bouyer     daddr_t badsect[127];    /* 126 plus trailing -1 marker */
     62   1.8  bouyer };
     63   1.8  bouyer 
     64   1.8  bouyer /*
     65   1.8  bouyer  * ata_bustype. The first field has to be compatible with scsipi_bustype,
     66   1.8  bouyer  * as it's used for autoconfig by both ata and atapi drivers
     67   1.8  bouyer  */
     68   1.8  bouyer 
     69   1.8  bouyer struct ata_bustype {
     70   1.8  bouyer 	int bustype_type;	/* symbolic name of type */
     71   1.9  bouyer 	int (*ata_bio) __P((struct ata_drive_datas*, struct ata_bio *));
     72   1.9  bouyer 	void (*ata_reset_channel) __P((struct ata_drive_datas *));
     73   1.9  bouyer 	int (*ata_exec_command) __P((struct ata_drive_datas *,
     74   1.9  bouyer 					struct wdc_command *));
     75   1.9  bouyer #define WDC_COMPLETE 0x01
     76   1.9  bouyer #define WDC_QUEUED   0x02
     77   1.9  bouyer #define WDC_TRY_AGAIN 0x03
     78   1.9  bouyer 	int (*ata_get_params) __P((struct ata_drive_datas*, u_int8_t,
     79   1.9  bouyer 					struct ataparams *));
     80   1.9  bouyer 	int (*ata_addref) __P((struct ata_drive_datas *));
     81   1.9  bouyer 	void (*ata_delref) __P((struct ata_drive_datas *));
     82   1.9  bouyer 	void (*ata_killpending) __P((struct ata_drive_datas *));
     83   1.8  bouyer };
     84   1.8  bouyer /* bustype_type */
     85   1.8  bouyer /* #define SCSIPI_BUSTYPE_SCSI	0 */
     86   1.8  bouyer /* #define SCSIPI_BUSTYPE_ATAPI	1 */
     87   1.8  bouyer #define SCSIPI_BUSTYPE_ATA	2
     88   1.8  bouyer 
     89   1.8  bouyer /*
     90   1.8  bouyer  * describe an ATA device. Has to be compatible with scsipi_channel, so start
     91   1.8  bouyer  * with a pointer to ata_bustype
     92   1.8  bouyer  */
     93   1.8  bouyer struct ata_device {
     94   1.8  bouyer 	const struct ata_bustype *adev_bustype;
     95   1.8  bouyer 	int adev_channel;
     96   1.8  bouyer 	int adev_openings;
     97   1.8  bouyer 	struct ata_drive_datas *adev_drv_data;
     98   1.2  bouyer };
     99   1.2  bouyer 
    100   1.2  bouyer void wddone __P((void *));
    101