devopen.c revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: devopen.c,v 1.1.2.2 2006/09/03 15:23:20 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /*- 4 1.1.2.2 yamt * Copyright (c) 1993 John Brezak 5 1.1.2.2 yamt * All rights reserved. 6 1.1.2.2 yamt * 7 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 yamt * modification, are permitted provided that the following conditions 9 1.1.2.2 yamt * are met: 10 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 15 1.1.2.2 yamt * 3. The name of the author may not be used to endorse or promote products 16 1.1.2.2 yamt * derived from this software without specific prior written permission. 17 1.1.2.2 yamt * 18 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR 19 1.1.2.2 yamt * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 20 1.1.2.2 yamt * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 21 1.1.2.2 yamt * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 22 1.1.2.2 yamt * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 1.1.2.2 yamt * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 1.1.2.2 yamt * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 1.1.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 1.1.2.2 yamt * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 27 1.1.2.2 yamt * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 1.1.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 29 1.1.2.2 yamt */ 30 1.1.2.2 yamt 31 1.1.2.2 yamt #include <lib/libsa/stand.h> 32 1.1.2.2 yamt #include <lib/libkern/libkern.h> 33 1.1.2.2 yamt 34 1.1.2.2 yamt #include "biosdisk.h" 35 1.1.2.2 yamt 36 1.1.2.2 yamt #include "boot.h" 37 1.1.2.2 yamt #include "bootinfo.h" 38 1.1.2.2 yamt 39 1.1.2.2 yamt static int dev2bios(char *devname, unsigned int unit, int *biosdev); 40 1.1.2.2 yamt static int devlookup(char *d); 41 1.1.2.2 yamt 42 1.1.2.2 yamt static int 43 1.1.2.2 yamt dev2bios(char *devname, unsigned int unit, int *biosdev) 44 1.1.2.2 yamt { 45 1.1.2.2 yamt 46 1.1.2.2 yamt if (strcmp(devname, "hd") == 0) { 47 1.1.2.2 yamt if (unit == 0 || unit == 1) { 48 1.1.2.2 yamt *biosdev = 0x40 + (unit << 4); 49 1.1.2.2 yamt return (0); 50 1.1.2.2 yamt } 51 1.1.2.2 yamt } 52 1.1.2.2 yamt return (ENXIO); 53 1.1.2.2 yamt } 54 1.1.2.2 yamt 55 1.1.2.2 yamt int 56 1.1.2.2 yamt bios2dev(int biosdev, char **devname, u_int *unit, u_int sector, u_int *ptnp) 57 1.1.2.2 yamt { 58 1.1.2.2 yamt 59 1.1.2.2 yamt *devname = "hd"; 60 1.1.2.2 yamt *unit = (biosdev >> 4) & 1; 61 1.1.2.2 yamt *ptnp = biosdisk_findptn(biosdev, sector); 62 1.1.2.2 yamt return (0); 63 1.1.2.2 yamt } 64 1.1.2.2 yamt 65 1.1.2.2 yamt static int 66 1.1.2.2 yamt devlookup(char *d) 67 1.1.2.2 yamt { 68 1.1.2.2 yamt struct devsw *dp = devsw; 69 1.1.2.2 yamt int i; 70 1.1.2.2 yamt 71 1.1.2.2 yamt for (i = 0; i < ndevs; i++, dp++) { 72 1.1.2.2 yamt if ((dp->dv_name != NULL) && (strcmp(dp->dv_name, d) == 0)) { 73 1.1.2.2 yamt return (i); 74 1.1.2.2 yamt } 75 1.1.2.2 yamt } 76 1.1.2.2 yamt 77 1.1.2.2 yamt printf("No such device - Configured devices are:\n"); 78 1.1.2.2 yamt for (dp = devsw, i = 0; i < ndevs; i++, dp++) { 79 1.1.2.2 yamt if (dp->dv_name != NULL) { 80 1.1.2.2 yamt printf(" %s", dp->dv_name); 81 1.1.2.2 yamt } 82 1.1.2.2 yamt } 83 1.1.2.2 yamt printf("\n"); 84 1.1.2.2 yamt return (-1); 85 1.1.2.2 yamt } 86 1.1.2.2 yamt 87 1.1.2.2 yamt int 88 1.1.2.2 yamt devopen(struct open_file *f, const char *fname, char **file) 89 1.1.2.2 yamt { 90 1.1.2.2 yamt static struct btinfo_bootpath bibp; 91 1.1.2.2 yamt struct devsw *dp; 92 1.1.2.2 yamt char *devname; 93 1.1.2.2 yamt unsigned int dev, ctlr, unit, partition; 94 1.1.2.2 yamt int biosdev; 95 1.1.2.2 yamt int error; 96 1.1.2.2 yamt 97 1.1.2.2 yamt #if defined(DEBUG) 98 1.1.2.2 yamt printf("devopen: fname = %s\n", fname); 99 1.1.2.2 yamt #endif 100 1.1.2.2 yamt 101 1.1.2.2 yamt ctlr = 0; 102 1.1.2.2 yamt if ((error = parsebootfile(fname, &devname, &unit, &partition, 103 1.1.2.2 yamt (const char **)file)) != 0) { 104 1.1.2.2 yamt return (error); 105 1.1.2.2 yamt } 106 1.1.2.2 yamt 107 1.1.2.2 yamt #if defined(DEBUG) 108 1.1.2.2 yamt printf("devopen: devname = %s\n", devname); 109 1.1.2.2 yamt #endif 110 1.1.2.2 yamt dev = devlookup(devname); 111 1.1.2.2 yamt if (dev == -1) { 112 1.1.2.2 yamt #if defined(DEBUG) 113 1.1.2.2 yamt printf("devopen: devlookup failed\n"); 114 1.1.2.2 yamt #endif 115 1.1.2.2 yamt return (ENXIO); 116 1.1.2.2 yamt } 117 1.1.2.2 yamt 118 1.1.2.2 yamt dp = &devsw[dev]; 119 1.1.2.2 yamt if (dp->dv_open == NULL) { 120 1.1.2.2 yamt #if defined(DEBUG) 121 1.1.2.2 yamt printf("devopen: dev->dv_open() == NULL\n"); 122 1.1.2.2 yamt #endif 123 1.1.2.2 yamt return (ENODEV); 124 1.1.2.2 yamt } 125 1.1.2.2 yamt f->f_dev = dp; 126 1.1.2.2 yamt 127 1.1.2.2 yamt strncpy(bibp.bootpath, *file, sizeof(bibp.bootpath)); 128 1.1.2.2 yamt BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp)); 129 1.1.2.2 yamt 130 1.1.2.2 yamt if (dev2bios(devname, unit, &biosdev) == 0) { 131 1.1.2.2 yamt #if defined(DEBUG) 132 1.1.2.2 yamt printf("devopen: bios disk\n"); 133 1.1.2.2 yamt #endif 134 1.1.2.2 yamt return (biosdisk_open(f, biosdev, partition)); 135 1.1.2.2 yamt } 136 1.1.2.2 yamt 137 1.1.2.2 yamt #if defined(DEBUG) 138 1.1.2.2 yamt printf("devopen: dev->dv_open()\n"); 139 1.1.2.2 yamt #endif 140 1.1.2.2 yamt if ((error = (*dp->dv_open)(f, ctlr, unit, partition)) == 0) { 141 1.1.2.2 yamt #if defined(DEBUG) 142 1.1.2.2 yamt printf("devopen: dev->dv_open() opened\n"); 143 1.1.2.2 yamt #endif 144 1.1.2.2 yamt return (0); 145 1.1.2.2 yamt } 146 1.1.2.2 yamt 147 1.1.2.2 yamt printf("%s%d%c:%s : %s\n", dp->dv_name, unit, partition + 'a', *file, 148 1.1.2.2 yamt strerror(error)); 149 1.1.2.2 yamt return (error); 150 1.1.2.2 yamt } 151
Indexes created Sun Oct 19 16:10:00 GMT 2025