1 /* $NetBSD: diskio.h,v 1.1 2002/02/24 20:51:08 leo Exp $ */ 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 */ 76