/*      $NetBSD: disklabel.h,v 1.8 2019/04/03 22:10:49 christos Exp $   */

/*
* Copyright (c) 1994 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Christopher G. Demetriou.
* 4. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (C) 1993   Allen K. Briggs, Chris P. Caputo,
*                      Michael L. Finch, Bradley A. Grantham, and
*                      Lawrence A. Kesteloot
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the Alice Group.
* 4. The names of the Alice Group or any of its members may not be used
*    to endorse or promote products derived from this software without
*    specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/

#ifndef _MACHINE_DISKLABEL_H_
#define _MACHINE_DISKLABEL_H_

#define LABELUSESMBR    0                       /* no MBR partitionning */
#define LABELSECTOR     0                       /* sector containing label */
#define LABELOFFSET     64                      /* offset of label in sector */
#define MAXPARTITIONS   8                       /* number of partitions */
#define RAW_PART        2                       /* raw partition: xx?c */

/* Just a dummy */
struct cpu_disklabel {
       int     cd_dummy;                       /* must have one element. */
};

/*
* Driver Descriptor Map, from Inside Macintosh: Devices, SCSI Manager
* pp 12-13.  The driver descriptor map always resides on physical block 0.
*/
struct drvr_descriptor {
       u_int32_t       descBlock;      /* first block of driver */
       u_int16_t       descSize;       /* driver size in blocks */
       u_int16_t       descType;       /* system type */
};

/* system types; Apple reserves 0-15 */
#define DRVR_TYPE_MACINTOSH     1

struct drvr_map {
#define DRIVER_MAP_MAGIC        0x4552
       u_int16_t       sbSig;          /* map signature */
       u_int16_t       sbBlockSize;    /* block size of device */
       u_int32_t       sbBlkCount;     /* number of blocks on device */
       u_int16_t       sbDevType;      /* (used internally by ROM) */
       u_int16_t       sbDevID;        /* (used internally by ROM) */
       u_int32_t       sbData;         /* (used internally by ROM) */
       u_int16_t       sbDrvrCount;    /* number of driver descriptors */
#define DRVR_MAX_DESCRIPTORS    61
       struct drvr_descriptor sb_dd[DRVR_MAX_DESCRIPTORS];
       u_int16_t       pad[3];
} __attribute__ ((packed));

#define ddBlock(N)      sb_dd[(N)].descBlock
#define ddSize(N)       sb_dd[(N)].descSize
#define ddType(N)       sb_dd[(N)].descType

/*
* Partition map structure from Inside Macintosh: Devices, SCSI Manager
* pp. 13-14.  The partition map always begins on physical block 1.
*
* With the exception of block 0, all blocks on the disk must belong to
* exactly one partition.  The partition map itself belongs to a partition
* of type `APPLE_PARTITION_MAP', and is not limited in size by anything
* other than available disk space.  The partition map is not necessarily
* the first partition listed.
*/
struct part_map_entry {
#define PART_ENTRY_MAGIC        0x504d
       u_int16_t       pmSig;          /* partition signature */
       u_int16_t       pmSigPad;       /* (reserved) */
       u_int32_t       pmMapBlkCnt;    /* number of blocks in partition map */
       u_int32_t       pmPyPartStart;  /* first physical block of partition */
       u_int32_t       pmPartBlkCnt;   /* number of blocks in partition */
       char            pmPartName[32]; /* partition name */
       char            pmPartType[32]; /* partition type */
       u_int32_t       pmLgDataStart;  /* first logical block of data area */
       u_int32_t       pmDataCnt;      /* number of blocks in data area */
       u_int32_t       pmPartStatus;   /* partition status information */
       u_int32_t       pmLgBootStart;  /* first logical block of boot code */
       u_int32_t       pmBootSize;     /* size of boot code, in bytes */
       u_int32_t       pmBootLoad;     /* boot code load address */
       u_int32_t       pmBootLoad2;    /* (reserved) */
       u_int32_t       pmBootEntry;    /* boot code entry point */
       u_int32_t       pmBootEntry2;   /* (reserved) */
       u_int32_t       pmBootCksum;    /* boot code checksum */
       char            pmProcessor[16]; /* processor type (e.g. "68020") */
       u_int8_t        pmBootArgs[128]; /* A/UX boot arguments */
       u_int8_t        pad[248];       /* pad to end of block */
};

#define PART_TYPE_DRIVER        "APPLE_DRIVER"
#define PART_TYPE_DRIVER43      "APPLE_DRIVER43"
#define PART_TYPE_DRIVERATA     "APPLE_DRIVER_ATA"
#define PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
#define PART_TYPE_MAC           "APPLE_HFS"
#define PART_TYPE_NETBSD        "NETBSD"
#define PART_TYPE_PARTMAP       "APPLE_PARTITION_MAP"
#define PART_TYPE_SCRATCH       "APPLE_SCRATCH"
#define PART_TYPE_UNIX          "APPLE_UNIX_SVR2"

/*
* "pmBootArgs" for APPLE_UNIX_SVR2 partition.
* NetBSD/mac68k only uses Magic, Cluster, Type, and Flags.
*/
struct blockzeroblock {
       u_int32_t       bzbMagic;
       u_int8_t        bzbCluster;
       u_int8_t        bzbType;
       u_int16_t       bzbBadBlockInode;
       u_int16_t       bzbFlags;
       u_int16_t       bzbReserved;
       u_int32_t       bzbCreationTime;
       u_int32_t       bzbMountTime;
       u_int32_t       bzbUMountTime;
};

#define BZB_MAGIC       0xABADBABE
#define BZB_TYPEFS      1
#define BZB_TYPESWAP    3
#define BZB_ROOTFS      0x8000
#define BZB_USRFS       0x4000

#define __HAVE_SETDISKLABEL

#endif /* _MACHINE_DISKLABEL_H_ */

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