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bootinfo.h revision 1.2 
      1 /*	$NetBSD: bootinfo.h,v 1.2 1998/12/14 15:22:04 itohy Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 ITOH, Yasufumi
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef _X68K_BOOTINFO_H_
     29 #define _X68K_BOOTINFO_H_
     30 
     31 /*
     32  *	machine dependent boot information
     33  *	passed from boot loader to the NetBSD kernel
     34  */
     35 
     36 /*
     37  * NetBSD/x68k uses MAKEBOOTDEV() framework defined in <sys/reboot.h>
     38  */
     39 #include <sys/reboot.h>
     40 
     41 /*
     42  * for non-SCSI devices
     43  */
     44 /* major */
     45 #define X68K_MAJOR_FD	2	/* floppy disk */
     46 #define X68K_MAJOR_MD	8	/* memory disk */
     47 
     48 #define X68K_MAKEBOOTDEV(major, unit, part) \
     49 	MAKEBOOTDEV(major, 0, 0, unit, part)
     50 
     51 
     52 /*
     53  * for SCSI devices
     54  *
     55  * device major		-> type		(8bit)
     56  * type of interface	-> adaptor	(4bit)
     57  * unit # of interface	-> controller	(4bit)
     58  * target SCSI ID	-> unit		(4bit)
     59  * target LUN		-> partition	(3bit; bit 4:6)
     60  * partition		-> partition	(4bit; bit 0:3)
     61  *
     62  * bit #7 of "partition" is reserved for future extension
     63  */
     64 /* major */
     65 #define X68K_MAJOR_SD	4	/* SCSI disk */
     66 /*	X68K_MAJOR_ST	5	XXX not yet */
     67 #define X68K_MAJOR_CD	7	/* SCSI CD-ROM */
     68 
     69 /* type_if */
     70 #define X68K_BOOT_SCSIIF_OLDBOOT	0	/* old boot used this value */
     71 #define X68K_BOOT_SCSIIF_SPC		1	/* spc */
     72 #define X68K_BOOT_SCSIIF_MHA		2	/* mha */
     73 
     74 #define X68K_MAKESCSIBOOTDEV(major, type_if, unit_if, scsi_id, lun, part) \
     75 	MAKEBOOTDEV(major, type_if, unit_if, scsi_id, ((lun) << 4) | (part))
     76 
     77 #define B_X68K_SCSI_IF(val)	B_ADAPTOR(val)
     78 #define B_X68K_SCSI_IF_UN(val)	B_CONTROLLER(val)
     79 
     80 #define B_X68K_SCSI_ID(val)	B_UNIT(val)
     81 #define B_X68K_SCSI_LUN(val)	(((val) >> (B_PARTITIONSHIFT + 4)) & 07)
     82 
     83 #define B_X68K_SCSI_PART(val)	(((val) >> B_PARTITIONSHIFT) & 017)
     84 
     85 #if 0
     86 /* this bit is reserved for future extension */
     87 #define B_X68K_SCSI_EXT(val)	(((val) >> (B_PARTITIONSHIFT + 7)) & 01)
     88 #endif
     89 
     90 
     91 /*
     92  * for array initialization
     93  */
     94 
     95 #define X68K_BOOT_DEV_LIST		\
     96 	{ "fd", X68K_MAJOR_FD },	\
     97 	{ "sd", X68K_MAJOR_SD },	\
     98 	{ "cd", X68K_MAJOR_CD },	\
     99 	{ "md", X68K_MAJOR_MD }
    100 
    101 #define X68K_BOOT_DEV_STRINGS		\
    102 	NULL, NULL, "fd", NULL, "sd", NULL, NULL, "cd"
    103 
    104 #define X68K_BOOT_DEV_IS_SCSI(major)	\
    105 	((major) == X68K_MAJOR_SD ||	\
    106 	 (major) == X68K_MAJOR_CD)
    107 
    108 #define X68K_BOOT_SCSIIF_LIST		\
    109 	{ "spc", X68K_BOOT_SCSIIF_SPC },\
    110 	{ "mha", X68K_BOOT_SCSIIF_MHA }
    111 
    112 #define X68K_BOOT_SCSIIF_STRINGS	\
    113 	NULL, "spc", "mha"
    114 
    115 #endif /* _X68K_BOOTINFO_H_ */
    116