sys/arch/atari/stand/tostools/libtos/diskio.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1995 Waldi Ravens.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *        This product includes software developed by Waldi Ravens.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #ifndef DISKIO_H
  34 #define DISKIO_H
  35
  36 #define MINOR(bus, target, lun) (lun)
  37 #define MAJOR(bus, target, lun) (((bus) << 3) + (target))
  38
  39 #define LUN(major, minor)       (minor)
  40 #define TARGET(major, minor)    ((major) & 0x0007)
  41 #define BUS(major, minor)       (((major) >> 3) & 0x1FFF)
  42 #define BIOSDEV(major, minor)   (((minor) == 0) ? ((major) + 2) : 0)
  43
  44 typedef enum {
  45         ACSI = 0,
  46         SCSI = 1,
  47         IDE  = 2
  48 } bus_t;
  49
  50 typedef struct {
  51         u_int           major;          /* XHDI major number            */
  52         u_int           minor;          /* XHDI minor number            */
  53         char *          sname;          /* short name (s00)             */
  54         char *          fname;          /* full name (scsi target 0 lun 0)*/
  55         char *          product;        /* product name                 */
  56         u_long          bsize;          /* block size in bytes          */
  57         u_long          msize;          /* medium size in blocks        */
  58         void            *xtra_info;     /* application specific info    */
  59 } disk_t;
  60
  61 /*
  62  * diskio.c
  63  */
  64 EXTERN disk_t * disk_open  PROTO((char *));
  65 EXTERN void     disk_close PROTO((disk_t *));
  66 EXTERN void *   disk_read  PROTO((disk_t *, u_int, u_int));
  67 EXTERN int      disk_write PROTO((disk_t *, u_int, u_int, void *));
  68
  69 /*
  70  *      biosrw.s
  71  */
  72 EXTERN int      bios_read   PROTO((void *, u_int, u_int, u_int));
  73 EXTERN int      bios_write  PROTO((void *, u_int, u_int, u_int));
  74 EXTERN void     bios_critic PROTO((void));
  75 #endif  /* DISKIO_H */