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      1 /*	$NetBSD: aptck.h,v 1.3 2002/02/24 20:51:07 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 APTCK_H
     34 #define APTCK_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 	char		id[4];
     52 	u_int		start;
     53 	u_int		end;
     54 	u_int		rsec;
     55 	u_int		rent;
     56 } part_t;
     57 
     58 typedef struct {
     59 	u_int		major;		/* XHDI major number		*/
     60 	u_int		minor;		/* XHDI minor number		*/
     61 	char *		sname;		/* short name (s00)		*/
     62 	char *		fname;		/* full name (scsi target 0 lun 0)*/
     63 	char *		product;	/* product name			*/
     64 	u_long		bsize;		/* block size in bytes		*/
     65 	u_long		msize;		/* medium size in blocks	*/
     66 	u_int		bblock;		/* NetBSD boot block		*/
     67 	u_int		lblofs;		/* label offset in boot block	*/
     68 	u_int		hdsize;		/* medium size from root sector	*/
     69 	u_int		bslst;		/* start of bad sector list	*/
     70 	u_int		bslend;		/* end of bad sector list	*/
     71 	u_int		nroots;		/* # of auxiliary root sectors	*/
     72 	u_int		*roots;		/* list of auxiliary roots	*/
     73 	u_int		nparts;		/* number of regular partitions	*/
     74 	part_t 		*parts;		/* list of partition descriptors */
     75 } disk_t;
     76 
     77 
     78 /*
     79  *	biosrw.s
     80  */
     81 EXTERN int	bios_read   PROTO((void *, u_int, u_int, u_int));
     82 EXTERN int	bios_write  PROTO((void *, u_int, u_int, u_int));
     83 EXTERN void	bios_critic PROTO((void));
     84 
     85 /*
     86  *	diskio.c
     87  */
     88 EXTERN disk_t *	disk_open  PROTO((char *));
     89 EXTERN void	disk_close PROTO((disk_t *));
     90 EXTERN void *	disk_read  PROTO((disk_t *, u_int, u_int));
     91 EXTERN int	disk_write PROTO((disk_t *, u_int, u_int, void *));
     92 
     93 /*
     94  *	disklabel.c
     95  */
     96 EXTERN int	readdisklabel PROTO((disk_t *));
     97 
     98 #endif	/* APTCK_H */
     99