devopen.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: devopen.c,v 1.1.2.2 2017/02/05 13:40:12 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /*- 4 1.1.2.2 skrll * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 1.1.2.2 skrll * All rights reserved. 6 1.1.2.2 skrll * 7 1.1.2.2 skrll * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 skrll * by Bang Jun-Young. 9 1.1.2.2 skrll * 10 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 skrll * modification, are permitted provided that the following conditions 12 1.1.2.2 skrll * are met: 13 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 18 1.1.2.2 skrll * 19 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.1.2.2 skrll * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.1.2.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.1.2.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.1.2.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.1.2.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.1.2.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.1.2.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.1.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.1.2.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.1.2.2 skrll * POSSIBILITY OF SUCH DAMAGE. 30 1.1.2.2 skrll */ 31 1.1.2.2 skrll 32 1.1.2.2 skrll /* 33 1.1.2.2 skrll * Copyright (c) 1996, 1997 34 1.1.2.2 skrll * Matthias Drochner. All rights reserved. 35 1.1.2.2 skrll * 36 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 37 1.1.2.2 skrll * modification, are permitted provided that the following conditions 38 1.1.2.2 skrll * are met: 39 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 40 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 41 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 42 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 43 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 44 1.1.2.2 skrll * 45 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 1.1.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 1.1.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 1.1.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 1.1.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 1.1.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 1.1.2.2 skrll * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 1.1.2.2 skrll * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 1.1.2.2 skrll * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 1.1.2.2 skrll * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 1.1.2.2 skrll */ 56 1.1.2.2 skrll 57 1.1.2.2 skrll #include "efiboot.h" 58 1.1.2.2 skrll 59 1.1.2.2 skrll #include <biosdisk.h> 60 1.1.2.2 skrll #include "devopen.h" 61 1.1.2.2 skrll #include <bootinfo.h> 62 1.1.2.2 skrll 63 1.1.2.2 skrll static int 64 1.1.2.2 skrll dev2bios(char *devname, int unit, int *biosdev) 65 1.1.2.2 skrll { 66 1.1.2.2 skrll 67 1.1.2.2 skrll if (strcmp(devname, "hd") == 0) 68 1.1.2.2 skrll *biosdev = 0x80 + unit; 69 1.1.2.2 skrll else 70 1.1.2.2 skrll return ENXIO; 71 1.1.2.2 skrll return 0; 72 1.1.2.2 skrll } 73 1.1.2.2 skrll 74 1.1.2.2 skrll void 75 1.1.2.2 skrll bios2dev(int biosdev, daddr_t sector, char **devname, int *unit, int *partition) 76 1.1.2.2 skrll { 77 1.1.2.2 skrll 78 1.1.2.2 skrll *unit = biosdev & 0x7f; 79 1.1.2.2 skrll *devname = "hd"; 80 1.1.2.2 skrll *partition = biosdisk_findpartition(biosdev, sector); 81 1.1.2.2 skrll } 82 1.1.2.2 skrll 83 1.1.2.2 skrll struct btinfo_bootpath bibp; 84 1.1.2.2 skrll extern bool kernel_loaded; 85 1.1.2.2 skrll 86 1.1.2.2 skrll /* 87 1.1.2.2 skrll * Open the EFI disk device 88 1.1.2.2 skrll */ 89 1.1.2.2 skrll int 90 1.1.2.2 skrll devopen(struct open_file *f, const char *fname, char **file) 91 1.1.2.2 skrll { 92 1.1.2.2 skrll char *fsname, *devname; 93 1.1.2.2 skrll int unit, partition; 94 1.1.2.2 skrll int biosdev; 95 1.1.2.2 skrll int error; 96 1.1.2.2 skrll 97 1.1.2.2 skrll if ((error = parsebootfile(fname, &fsname, &devname, 98 1.1.2.2 skrll &unit, &partition, (const char **) file)) 99 1.1.2.2 skrll || (error = dev2bios(devname, unit, &biosdev))) 100 1.1.2.2 skrll return error; 101 1.1.2.2 skrll 102 1.1.2.2 skrll f->f_dev = &devsw[0]; /* must be biosdisk */ 103 1.1.2.2 skrll 104 1.1.2.2 skrll if (!kernel_loaded) { 105 1.1.2.2 skrll strncpy(bibp.bootpath, *file, sizeof(bibp.bootpath)); 106 1.1.2.2 skrll BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp)); 107 1.1.2.2 skrll } 108 1.1.2.2 skrll 109 1.1.2.2 skrll return biosdisk_open(f, biosdev, partition); 110 1.1.2.2 skrll } 111
Indexes created Fri Oct 03 02:09:57 GMT 2025