bfs_subr.c revision 1.1.18.2
1 1.1.18.2 yamt /* $NetBSD: bfs_subr.c,v 1.1.18.2 2006/06/21 14:51:20 yamt Exp $ */ 2 1.1.18.2 yamt 3 1.1.18.2 yamt /*- 4 1.1.18.2 yamt * Copyright (c) 2004 The NetBSD Foundation, Inc. 5 1.1.18.2 yamt * All rights reserved. 6 1.1.18.2 yamt * 7 1.1.18.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.18.2 yamt * by UCHIYAMA Yasushi. 9 1.1.18.2 yamt * 10 1.1.18.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.18.2 yamt * modification, are permitted provided that the following conditions 12 1.1.18.2 yamt * are met: 13 1.1.18.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.18.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.18.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.18.2 yamt * must display the following acknowledgement: 20 1.1.18.2 yamt * This product includes software developed by the NetBSD 21 1.1.18.2 yamt * Foundation, Inc. and its contributors. 22 1.1.18.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.18.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.18.2 yamt * from this software without specific prior written permission. 25 1.1.18.2 yamt * 26 1.1.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.18.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.18.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.18.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.18.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.18.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.18.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.18.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.18.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.18.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.18.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.18.2 yamt */ 38 1.1.18.2 yamt 39 1.1.18.2 yamt #include <sys/cdefs.h> 40 1.1.18.2 yamt 41 1.1.18.2 yamt __KERNEL_RCSID(0, "$NetBSD: bfs_subr.c,v 1.1.18.2 2006/06/21 14:51:20 yamt Exp $"); 42 1.1.18.2 yamt #ifdef _STANDALONE 43 1.1.18.2 yamt #include <lib/libsa/stand.h> 44 1.1.18.2 yamt #include <lib/libkern/libkern.h> 45 1.1.18.2 yamt #include "local.h" 46 1.1.18.2 yamt #endif 47 1.1.18.2 yamt 48 1.1.18.2 yamt #include <sys/types.h> 49 1.1.18.2 yamt #include <sys/systm.h> 50 1.1.18.2 yamt #include <sys/errno.h> 51 1.1.18.2 yamt #include <machine/param.h> 52 1.1.18.2 yamt #include <machine/sector.h> 53 1.1.18.2 yamt #include <machine/bfs.h> 54 1.1.18.2 yamt 55 1.1.18.2 yamt struct sector_io_ops __io_ops = { 56 1.1.18.2 yamt sector_read, 57 1.1.18.2 yamt sector_read_n, 58 1.1.18.2 yamt sector_write, 59 1.1.18.2 yamt sector_write_n 60 1.1.18.2 yamt }; 61 1.1.18.2 yamt 62 1.1.18.2 yamt int 63 1.1.18.2 yamt bfs_init(struct bfs **bfsp) 64 1.1.18.2 yamt { 65 1.1.18.2 yamt int err, bfs_sector; 66 1.1.18.2 yamt 67 1.1.18.2 yamt device_attach(2, 0, -1); /* HARDDISK UNIT 0 */ 68 1.1.18.2 yamt 69 1.1.18.2 yamt if ((err = bfs_find(&bfs_sector)) != 0) 70 1.1.18.2 yamt return err; 71 1.1.18.2 yamt 72 1.1.18.2 yamt return bfs_init2(bfsp, bfs_sector, &__io_ops, FALSE); 73 1.1.18.2 yamt } 74 1.1.18.2 yamt 75 1.1.18.2 yamt int 76 1.1.18.2 yamt bfs_find(int *sector) 77 1.1.18.2 yamt { 78 1.1.18.2 yamt static uint8_t buf[DEV_BSIZE]; 79 1.1.18.2 yamt struct pdinfo_sector *pdinfo; 80 1.1.18.2 yamt struct vtoc_sector *vtoc; 81 1.1.18.2 yamt const struct ux_partition *bfs_partition; 82 1.1.18.2 yamt int start; 83 1.1.18.2 yamt 84 1.1.18.2 yamt /* Physical Disk INFOrmation */ 85 1.1.18.2 yamt pdinfo = (struct pdinfo_sector *)buf; 86 1.1.18.2 yamt if (!pdinfo_sector(0, pdinfo) || !pdinfo_sanity(pdinfo)) 87 1.1.18.2 yamt return ENOENT; 88 1.1.18.2 yamt 89 1.1.18.2 yamt /* `start' is logical sector start in UX partition table. */ 90 1.1.18.2 yamt start = pdinfo->logical_sector; 91 1.1.18.2 yamt 92 1.1.18.2 yamt /* Volume Table Of Contents */ 93 1.1.18.2 yamt vtoc = (struct vtoc_sector *)buf; 94 1.1.18.2 yamt if (!vtoc_sector(0, vtoc, start)) 95 1.1.18.2 yamt return ENOENT; 96 1.1.18.2 yamt 97 1.1.18.2 yamt /* Boot File System partition */ 98 1.1.18.2 yamt if ((bfs_partition = vtoc_find_bfs(vtoc)) == 0) 99 1.1.18.2 yamt return ENOENT; 100 1.1.18.2 yamt 101 1.1.18.2 yamt *sector = start + bfs_partition->start_sector; 102 1.1.18.2 yamt 103 1.1.18.2 yamt return 0; 104 1.1.18.2 yamt } 105
Indexes created Fri Oct 03 17:10:05 GMT 2025