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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /*
26: * Copyright (c) 1997 Apple Computer, Inc.
27: *
28: * disk.h
29: * Apple partition map definitions and data structures
30: *
31: * DPME = Disk Partition Map Entry
32: *
33: * Each entry is (and shall remain) 512 bytes long.
34: * For more information see:
35: * "Inside Macintosh: Devices" pages 3-12 to 3-15.
36: * "Inside Macintosh - Volume V" pages V-576 to V-582
37: * "Inside Macintosh - Volume IV" page IV-292
38: *
39: * HISTORY
40: *
41: * 11 Jun 97 Dieter Siegmund at Apple.
42: * Taken from Eryk Vershen's dpme.h.
43: */
44: /*
45: * Copyright 1996 by Apple Computer, Inc.
46: * All Rights Reserved
47: *
48: * Permission to use, copy, modify, and distribute this software and
49: * its documentation for any purpose and without fee is hereby granted,
50: * provided that the above copyright notice appears in all copies and
51: * that both the copyright notice and this permission notice appear in
52: * supporting documentation.
53: *
54: * APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
55: * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
56: * FOR A PARTICULAR PURPOSE.
57: *
58: * IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
59: * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
60: * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
61: * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
62: * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
63: */
64:
65: #define BLOCK0_SIGNATURE 0x4552 /* Signature value. */
66: #define DPISTRLEN 32
67: #define DPME_SIGNATURE 0x504D
68:
69: #define RHAPSODY_PART_TYPE "Apple_Rhapsody_UFS" /* native partition type */
70:
71: typedef unsigned char u8;
72: typedef unsigned short u16;
73: typedef unsigned long u32;
74:
75: // Physical block zero of the disk has this format
76: struct Block0 {
77: u16 sbSig; /* unique value for SCSI block 0 */
78: u16 sbBlkSize; /* block size of device */
79: u32 sbBlkCount; /* number of blocks on device */
80: u16 sbDevType; /* device type */
81: u16 sbDevId; /* device id */
82: u32 sbData; /* not used */
83: u16 sbDrvrCount; /* driver descriptor count */
84: u16 sbMap[247]; /* descriptor map */
85: };
86: typedef struct Block0 Block0;
87:
88: struct DDMap {
89: u32 ddBlock; /* 1st driver's starting block */
90: u16 ddSize; /* size of 1st driver (512-byte blks) */
91: u16 ddType; /* system type (1 for Mac+) */
92: };
93: typedef struct DDMap DDMap;
94:
95: // Each partition map entry (blocks 1 through n) has this format
96: struct dpme {
97: u16 dpme_signature ;
98: u16 dpme_reserved_1 ;
99: u32 dpme_map_entries ;
100: u32 dpme_pblock_start ;
101: u32 dpme_pblocks ;
102: char dpme_name[DPISTRLEN] ; /* name of partition */
103: char dpme_type[DPISTRLEN] ; /* type of partition */
104: u32 dpme_lblock_start ;
105: u32 dpme_lblocks ;
106: u32 dpme_flags;
107: #if 0
108: u32 dpme_reserved_2 : 23 ; /* Bit 9 through 31. */
109: u32 dpme_os_specific_1 : 1 ; /* Bit 8. */
110: u32 dpme_os_specific_2 : 1 ; /* Bit 7. */
111: u32 dpme_os_pic_code : 1 ; /* Bit 6. */
112: u32 dpme_writable : 1 ; /* Bit 5. */
113: u32 dpme_readable : 1 ; /* Bit 4. */
114: u32 dpme_bootable : 1 ; /* Bit 3. */
115: u32 dpme_in_use : 1 ; /* Bit 2. */
116: u32 dpme_allocated : 1 ; /* Bit 1. */
117: u32 dpme_valid : 1 ; /* Bit 0. */
118: #endif
119: u32 dpme_boot_block ;
120: u32 dpme_boot_bytes ;
121: u8 *dpme_load_addr ;
122: u8 *dpme_load_addr_2 ;
123: u8 *dpme_goto_addr ;
124: u8 *dpme_goto_addr_2 ;
125: u32 dpme_checksum ;
126: char dpme_process_id[16] ;
127: u32 dpme_boot_args[32] ;
128: u32 dpme_reserved_3[62] ;
129: };
130: typedef struct dpme DPME;
131:
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