distrib/utils/sysinst/arch/mac68k/md.h

   1 /*      $NetBSD: md.h,v 1.22 2006/02/26 10:25:53 dsl Exp $      */
   2
   3 /*
   4  * Copyright 1997 Piermont Information Systems Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Philip A. Nelson for Piermont Information Systems Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Piermont Information Systems Inc.
  21  * 4. The name of Piermont Information Systems Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS''
  26  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE
  29  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  35  * THE POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  */
  38
  39 #include <sys/disklabel.h>
  40 #include <sys/bootblock.h>
  41
  42 /* md.h -- Machine specific definitions for the mac68k */
  43
  44 /*
  45  * Apple Partition Map Types
  46  *    Reserved - Entry hidden by sysinst from user
  47  *    NetBSD   - Entry used for NetBSD
  48  *    MacOS    - Entry used for MacOS and mapped to NetBSD
  49  *    Other    - Entry use unknown, mapped for scratch. This may
  50  *               include partitions used by other systems (Linux).
  51  */
  52 #define MAP_EOL      0
  53 #define MAP_RESERVED 1
  54 #define MAP_NETBSD   2
  55 #define MAP_MACOS    3
  56 #define MAP_OTHER    4
  57
  58 typedef struct {
  59         int type;               /* Entry type from above */
  60         const char *name;             /* Partition Type string */
  61 } MAP_TYPE;
  62
  63 /*
  64  * Define Apple Partition Map types typically seen on 68k Macs
  65  *    This should match the definitions in include/machine/disklabel.h
  66  *    and must conform to the matching rules in arch/mac68k/mac68k/disksubr.c
  67  */
  68 extern MAP_TYPE map_types[];
  69
  70 /*
  71  * Define NetBSD partition types
  72  */
  73 #define ROOT_PART 1
  74 #define UFS_PART 2
  75 #define SWAP_PART 3
  76 #define HFS_PART 4
  77 #define SCRATCH_PART 5
  78
  79 int usefull;                    /* on install, clobber entire disk */
  80
  81 typedef struct {
  82         int size;               /* number of blocks in map for I/O */
  83         int in_use_cnt;         /* number of block in current use in map */
  84         int usable_cnt;         /* number of partitions usable by NetBSD */
  85         int hfs_cnt;            /* number of MacOS partitions found */
  86         int root_cnt;           /* number of root partitions in map */
  87         int swap_cnt;           /* number of swap partitions in map */
  88         int usr_cnt;            /* number of usr partitions in map */
  89         int selected;           /* current partition selection in mblk */
  90         int mblk[MAXPARTITIONS];/* map block number of usable partition */
  91         struct apple_part_map_entry *blk;
  92 } MAP;
  93
  94 /*
  95  * Define the default size for the Disk Partition Map if we have to
  96  *  write one to the disk.  It should be a power of two minus one for
  97  *  the Block0 block, i.e. 7, 15, 31, 63.
  98  */
  99 #define NEW_MAP_SIZE 15
 100
 101 MAP map;
 102
 103 /* constants and defines */
 104
 105 /*
 106  * The Block Zero Block is stored in the Partition Map Entry in the
 107  *  pmPad (or pmBootArgs) area.  The current NetBSD definition of this
 108  *  area is incomplete, so we have our own local definition here.
 109  */
 110 typedef struct {
 111     u_int32_t magic;    /* magic number that identifes Block Zero Block */
 112     u_int8_t cluster;   /* Autorecovery cluster grouping */
 113     u_int8_t type;      /* 1=>Std FS, 2=>Autorecovery FS, 3=>SWAP FS */
 114     u_int16_t inode;    /* bad block inode number */
 115     struct {
 116         unsigned int root : 1;  /* FS contains a Root FS */
 117         unsigned int usr  : 1;  /* FS contains a Usr FS */
 118         unsigned int crit : 1;  /* FS contains a "Critical"? FS */
 119         unsigned int used : 1;  /* FS in use */
 120         unsigned int      : 7;
 121         unsigned int slice : 5; /* Slice number to assocate with plus one */
 122         unsigned int part  : 16; /* reserved, but we'll hide disk part here */
 123     } flags;
 124     u_int32_t tmade;    /* time FS was created */
 125     u_int32_t tmount;   /* time of last mount */
 126     u_int32_t tumount;  /* time of last umount */
 127     struct {
 128         u_int32_t size;         /* size of map in bytes */
 129         u_int32_t ents;         /* number of used entries */
 130         u_int32_t start;        /* start of cltblk map */
 131     } abm;              /* altblk map */
 132     u_int32_t filler[7];        /* reserved for abm expansion */
 133     u_int8_t mount_point[64];   /* mount point for the FS */
 134 } EBZB;
 135
 136 /*
 137  * Also define Block 0 on the device.  We only use this when we have to
 138  *  initialize the entire disk and then we really only care about the
 139  *  Signature word, but someday someone might want to fill in other
 140  *  parts.
 141  */
 142 typedef struct {
 143     unsigned short      sbSig;          /* unique value for SCSI block 0 */
 144     unsigned short      sbBlkSize;      /* block size of device */
 145     unsigned long       sbBlkCount;     /* number of blocks on device */
 146     unsigned short      sbDevType;      /* device type */
 147     unsigned short      sbDevId;        /* device id */
 148     unsigned long       sbData;         /* not used */
 149     unsigned short      sbDrvrCount;    /* driver descriptor count */
 150     unsigned long       ddBlock;        /* 1st driver's starting block */
 151     unsigned short      ddSize;         /* size of 1st driver (512-byte blks) */
 152     unsigned short      ddType;         /* system type (1 for Mac+) */
 153     unsigned short      ddPad[243];     /* ARRAY[0..242] OF INTEGER; not used */
 154 } Block0;
 155
 156 /*
 157  * Default Disk Partition Map used for an uninitilized disk.
 158  *  Has minimal entry for an old Apple SCSI driver, a newer 43 SCSI
 159  *  driver and an IDE driver (for those Macs with IDE).
 160  */
 161 extern struct apple_part_map_entry new_map[];
 162
 163 /* Megs required for a full X installation. */
 164 #define XNEEDMB 50
 165
 166 /*
 167  * Machine-specific command to write a new label to a disk.
 168  * For example, i386 uses "/sbin/disklabel -w -r", just like i386
 169  * miniroot scripts, though this may leave a bogus incore label.
 170  * Sun ports should probably use DISKLABEL_CMD "/sbin/disklabel -w"
 171  * to get incore to ondisk inode translation for the Sun proms.
 172  * If not defined, we assume the port does not support disklabels and
 173  * hand-edited disklabel will NOT be written by MI code.
 174  *
 175  * The mac68k port doesn't support real disklabels so we don't define the
 176  * command string. The Apple Disk Partition Map gets written in the
 177  * md_pre_disklabel() routine, which also forces the incore copy to be
 178  * updated. If native disklabels are supported or if disklabel() is
 179  * fixed to work for writing labels, this command should be defined
 180  * to a value that will force the writing of the label. In that case,
 181  * the code in md_pre_disklabel() which forces the incore update can be
 182  * removed, though its presence won't hurt.
 183  *
 184  * #define DISKLABEL_CMD
 185  */
 186
 187 /* Definition of files to retrieve from ftp. */
 188 #define SET_KERNEL_1_NAME       "kern-GENERIC"
 189 #define SET_KERNEL_2_NAME       "kern-GENERICSBC"
 190
 191 extern void     sortmerge(void);
 192 extern void     disp_selected_part(int);
 193 extern void     reset_part_flags(struct apple_part_map_entry *);
 194 extern int      whichType(struct apple_part_map_entry *);
 195 extern void     report_errors(void);