ahdilbl.h revision 1.1.2.2
1 1.1.2.2 nathanw /* $NetBSD: ahdilbl.h,v 1.1.2.2 2002/02/28 04:08:32 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /* 4 1.1.2.2 nathanw * Copyright (c) 1995 Leo Weppelman. 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.1.2.2 nathanw * are met: 10 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.1.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 16 1.1.2.2 nathanw * must display the following acknowledgement: 17 1.1.2.2 nathanw * This product includes software developed by Leo Weppelman. 18 1.1.2.2 nathanw * 4. The name of the author may not be used to endorse or promote products 19 1.1.2.2 nathanw * derived from this software without specific prior written permission 20 1.1.2.2 nathanw * 21 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 1.1.2.2 nathanw * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 1.1.2.2 nathanw * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 1.1.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 1.1.2.2 nathanw * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 1.1.2.2 nathanw * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 1.1.2.2 nathanw * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 1.1.2.2 nathanw * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 1.1.2.2 nathanw * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 1.1.2.2 nathanw * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 1.1.2.2 nathanw */ 32 1.1.2.2 nathanw 33 1.1.2.2 nathanw #ifndef AHDILABEL_H 34 1.1.2.2 nathanw #define AHDILABEL_H 35 1.1.2.2 nathanw 36 1.1.2.2 nathanw /***** from src/sys/arch/atari/include/disklabel.h *************************/ 37 1.1.2.2 nathanw 38 1.1.2.2 nathanw /* 39 1.1.2.2 nathanw * On a volume, exclusively used by NetBSD, the boot block starts at 40 1.1.2.2 nathanw * sector 0. To allow shared use of a volume between two or more OS's 41 1.1.2.2 nathanw * the vendor specific AHDI format is supported. In this case the boot 42 1.1.2.2 nathanw * block is located at the start of an AHDI partition. In any case the 43 1.1.2.2 nathanw * size of the boot block must be at least 8KB. 44 1.1.2.2 nathanw */ 45 1.1.2.2 nathanw #define BBMINSIZE 8192 /* minimum size of boot block */ 46 1.1.2.2 nathanw #define LABELSECTOR 0 /* `natural' start of boot block */ 47 1.1.2.2 nathanw #define LABELOFFSET 516 /* offset of disk label in bytes, 48 1.1.2.2 nathanw relative to start of boot block */ 49 1.1.2.2 nathanw #define LABELMAXSIZE 1020 /* maximum size of disk label */ 50 1.1.2.2 nathanw 51 1.1.2.2 nathanw #define MAXPARTITIONS 16 /* max. # of NetBSD partitions */ 52 1.1.2.2 nathanw #define RAW_PART 2 /* xx?c is raw partition */ 53 1.1.2.2 nathanw 54 1.1.2.2 nathanw #define NO_BOOT_BLOCK ((u_int)-1) 55 1.1.2.2 nathanw #define MAXAUXROOTS 29 /* max. # of auxiliary root sectors */ 56 1.1.2.2 nathanw 57 1.1.2.2 nathanw struct bootblock { 58 1.1.2.2 nathanw u_int8_t bb_xxboot[LABELOFFSET - sizeof(u_int32_t)]; 59 1.1.2.2 nathanw /* first-stage boot loader */ 60 1.1.2.2 nathanw u_int32_t bb_magic; /* boot block magic number */ 61 1.1.2.2 nathanw #define NBDAMAGIC 0x4e424441 62 1.1.2.2 nathanw #define AHDIMAGIC 0x41484449 63 1.1.2.2 nathanw u_int8_t bb_label[LABELMAXSIZE]; /* disk pack label */ 64 1.1.2.2 nathanw u_int8_t bb_bootxx[BBMINSIZE - (LABELOFFSET + LABELMAXSIZE)]; 65 1.1.2.2 nathanw /* second-stage boot loader*/ 66 1.1.2.2 nathanw }; 67 1.1.2.2 nathanw 68 1.1.2.2 nathanw #define BBGETLABEL(bb, dl) *(dl) = *((struct disklabel *)(bb)->bb_label) 69 1.1.2.2 nathanw #define BBSETLABEL(bb, dl) *((struct disklabel *)(bb)->bb_label) = *(dl) 70 1.1.2.2 nathanw 71 1.1.2.2 nathanw /***** from src/sys/arch/atari/include/ahdilabel.h *************************/ 72 1.1.2.2 nathanw 73 1.1.2.2 nathanw #define AHDI_BSIZE 512 /* AHDI blocksize */ 74 1.1.2.2 nathanw #define AHDI_BBLOCK 0 /* AHDI bootblock (root sector) */ 75 1.1.2.2 nathanw #define AHDI_MAXROOTS (MAXAUXROOTS) /* max. # of AHDI rootsectors */ 76 1.1.2.2 nathanw #define AHDI_MAXPARTS (AHDI_MAXROOTS+3) /* max. # of AHDI partitions */ 77 1.1.2.2 nathanw 78 1.1.2.2 nathanw /* 79 1.1.2.2 nathanw * Various `well known' AHDI partition identifiers. 80 1.1.2.2 nathanw */ 81 1.1.2.2 nathanw #define AHDI_MKPID(x,y,z) ( ((u_int32_t)(x) << 16) \ 82 1.1.2.2 nathanw | ((u_int32_t)(y) << 8) \ 83 1.1.2.2 nathanw | ((u_int32_t)(z)) \ 84 1.1.2.2 nathanw ) 85 1.1.2.2 nathanw #define AHDI_PID_XGM AHDI_MKPID('X','G','M') 86 1.1.2.2 nathanw #define AHDI_PID_GEM AHDI_MKPID('G','E','M') 87 1.1.2.2 nathanw #define AHDI_PID_BGM AHDI_MKPID('B','G','M') 88 1.1.2.2 nathanw #define AHDI_PID_RAW AHDI_MKPID('R','A','W') 89 1.1.2.2 nathanw #define AHDI_PID_SWP AHDI_MKPID('S','W','P') 90 1.1.2.2 nathanw #define AHDI_PID_NBD AHDI_MKPID('N','B','D') 91 1.1.2.2 nathanw #define AHDI_PID_NBR AHDI_MKPID('N','B','R') 92 1.1.2.2 nathanw #define AHDI_PID_NBS AHDI_MKPID('N','B','S') 93 1.1.2.2 nathanw #define AHDI_PID_NBU AHDI_MKPID('N','B','U') 94 1.1.2.2 nathanw 95 1.1.2.2 nathanw /* 96 1.1.2.2 nathanw * Format of AHDI boot block. 97 1.1.2.2 nathanw */ 98 1.1.2.2 nathanw #define AHDI_MAXRPD 4 /* max. # of partition descriptors */ 99 1.1.2.2 nathanw /* in the AHDI bootblock (aka root)*/ 100 1.1.2.2 nathanw #define AHDI_MAXARPD 2 /* max. # of partition descriptors */ 101 1.1.2.2 nathanw /* in an AHDI auxiliary root sector */ 102 1.1.2.2 nathanw 103 1.1.2.2 nathanw struct ahdi_part { 104 1.1.2.2 nathanw u_int8_t ap_flg; /* bit 0 is in-use flag */ 105 1.1.2.2 nathanw u_int8_t ap_id[3]; /* id: GEM, BGM, XGM, UNX, MIX */ 106 1.1.2.2 nathanw u_int32_t ap_st; /* block where partition starts */ 107 1.1.2.2 nathanw u_int32_t ap_size; /* partition size in blocks */ 108 1.1.2.2 nathanw #define ap_end ap_size /* in the in-core copy, store end instead of size */ 109 1.1.2.2 nathanw }; 110 1.1.2.2 nathanw 111 1.1.2.2 nathanw struct ahdi_root { 112 1.1.2.2 nathanw u_int8_t ar_fill[0x1c2];/* filler, can be boot code */ 113 1.1.2.2 nathanw u_int32_t ar_hdsize; /* size of entire volume in blocks */ 114 1.1.2.2 nathanw struct ahdi_part ar_parts[AHDI_MAXRPD]; /* root partition table */ 115 1.1.2.2 nathanw u_int32_t ar_bslst; /* start of bad-sector list */ 116 1.1.2.2 nathanw u_int32_t ar_bslsize; /* # of blocks in bad-sector list */ 117 1.1.2.2 nathanw u_int16_t ar_cksum; 118 1.1.2.2 nathanw }; 119 1.1.2.2 nathanw 120 1.1.2.2 nathanw /* 121 1.1.2.2 nathanw * Partition table representation as generated by ahdi_getparts(): 122 1.1.2.2 nathanw */ 123 1.1.2.2 nathanw typedef struct { 124 1.1.2.2 nathanw char id[4]; 125 1.1.2.2 nathanw u_int start; 126 1.1.2.2 nathanw u_int end; 127 1.1.2.2 nathanw u_int rsec; 128 1.1.2.2 nathanw u_int rent; 129 1.1.2.2 nathanw int mod; 130 1.1.2.2 nathanw } part_t; 131 1.1.2.2 nathanw 132 1.1.2.2 nathanw typedef struct { 133 1.1.2.2 nathanw int nparts; 134 1.1.2.2 nathanw part_t *parts; 135 1.1.2.2 nathanw } ptable_t; 136 1.1.2.2 nathanw 137 1.1.2.2 nathanw EXTERN u_int ahdi_getparts PROTO((disk_t *, ptable_t *, u_int, u_int)); 138 1.1.2.2 nathanw #endif /* AHDILABEL_H */ 139
Indexes created Tue Oct 14 15:09:51 GMT 2025