sys/arch/x68k/include/bootinfo.h

   1 /*      $NetBSD: bootinfo.h,v 1.3 1999/09/23 15:14:58 minoura 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 #define X68K_MAJOR_NE   255     /* network interface: ne */
  48
  49 #define X68K_MAKEBOOTDEV(major, unit, part) \
  50         MAKEBOOTDEV(major, 0, 0, unit, part)
  51
  52
  53 /*
  54  * for SCSI devices
  55  *
  56  * device major         -> type         (8bit)
  57  * type of interface    -> adaptor      (4bit)
  58  * unit # of interface  -> controller   (4bit)
  59  * target SCSI ID       -> unit         (4bit)
  60  * target LUN           -> partition    (3bit; bit 4:6)
  61  * partition            -> partition    (4bit; bit 0:3)
  62  *
  63  * bit #7 of "partition" is reserved for future extension
  64  */
  65 /* major */
  66 #define X68K_MAJOR_SD   4       /* SCSI disk */
  67 /*      X68K_MAJOR_ST   5       XXX not yet */
  68 #define X68K_MAJOR_CD   7       /* SCSI CD-ROM */
  69
  70 /* type_if */
  71 #define X68K_BOOT_SCSIIF_OLDBOOT        0       /* old boot used this value */
  72 #define X68K_BOOT_SCSIIF_SPC            1       /* spc */
  73 #define X68K_BOOT_SCSIIF_MHA            2       /* mha */
  74
  75 #define X68K_MAKESCSIBOOTDEV(major, type_if, unit_if, scsi_id, lun, part) \
  76         MAKEBOOTDEV(major, type_if, unit_if, scsi_id, ((lun) << 4) | (part))
  77
  78 #define B_X68K_SCSI_IF(val)     B_ADAPTOR(val)
  79 #define B_X68K_SCSI_IF_UN(val)  B_CONTROLLER(val)
  80
  81 #define B_X68K_SCSI_ID(val)     B_UNIT(val)
  82 #define B_X68K_SCSI_LUN(val)    (((val) >> (B_PARTITIONSHIFT + 4)) & 07)
  83
  84 #define B_X68K_SCSI_PART(val)   (((val) >> B_PARTITIONSHIFT) & 017)
  85
  86 #if 0
  87 /* this bit is reserved for future extension */
  88 #define B_X68K_SCSI_EXT(val)    (((val) >> (B_PARTITIONSHIFT + 7)) & 01)
  89 #endif
  90
  91
  92 /*
  93  * for array initialization
  94  */
  95
  96 #define X68K_BOOT_DEV_LIST              \
  97         { "fd", X68K_MAJOR_FD },        \
  98         { "sd", X68K_MAJOR_SD },        \
  99         { "cd", X68K_MAJOR_CD },        \
 100         { "md", X68K_MAJOR_MD }
 101
 102 #define X68K_BOOT_DEV_STRINGS           \
 103         NULL, NULL, "fd", NULL, "sd", NULL, NULL, "cd"
 104
 105 #define X68K_BOOT_DEV_IS_SCSI(major)    \
 106         ((major) == X68K_MAJOR_SD ||    \
 107          (major) == X68K_MAJOR_CD)
 108
 109 #define X68K_BOOT_SCSIIF_LIST           \
 110         { "spc", X68K_BOOT_SCSIIF_SPC },\
 111         { "mha", X68K_BOOT_SCSIIF_MHA }
 112
 113 #define X68K_BOOT_SCSIIF_STRINGS        \
 114         NULL, "spc", "mha"
 115
 116 #define X68K_BOOT_NETIF_LIST            \
 117         { "ne", X68K_MAJOR_NE }
 118
 119 #define X68K_BOOT_NETIF_STRINGS         \
 120         "ne"
 121
 122 #define X68K_BOOT_DEV_IS_NETIF(major)   \
 123         ((major) == X68K_MAJOR_NE)
 124
 125
 126 /* Kernel boot interface version */
 127 #define X68K_BOOTIF_VERS        0
 128 #define X68K_BOOTIF_VERS_COMPAT 0x4e73 /* rte instruction */
 129
 130 #endif /* _X68K_BOOTINFO_H_ */