/* $NetBSD: devopen.c,v 1.8.64.2 2019/12/17 12:59:52 martin Exp $ */ /*- * Copyright (c) 2005 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Bang Jun-Young. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1996, 1997 * Matthias Drochner. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include "devopen.h" #ifdef _STANDALONE #include #endif #ifdef SUPPORT_PS2 #include #endif static int dev2bios(char *, int, int *); static int dev2bios(char *devname, int unit, int *biosdev) { if (strcmp(devname, "hd") == 0) *biosdev = 0x80 + unit; else if (strcmp(devname, "fd") == 0) *biosdev = 0x00 + unit; else if (strcmp(devname, "cd") == 0) *biosdev = boot_biosdev; else return ENXIO; return 0; } void bios2dev(int biosdev, daddr_t sector, char **devname, int *unit, int *partition, const char **part_name) { /* set default */ *unit = biosdev & 0x7f; if (biosdev & 0x80) { /* * There seems to be no standard way of numbering BIOS * CD-ROM drives. The following method is a little tricky * but works nicely. */ if (biosdev >= 0x80 + get_harddrives()) { *devname = "cd"; *unit = 0; /* override default */ } else *devname = "hd"; } else *devname = "fd"; (void)biosdisk_findpartition(biosdev, sector, partition, part_name); } #ifdef _STANDALONE struct btinfo_bootpath bibp; extern bool kernel_loaded; #endif /* * Open the BIOS disk device */ int devopen(struct open_file *f, const char *fname, char **file) { char *fsname, *devname; int unit, partition; int biosdev; int error; error = parsebootfile(fname, &fsname, &devname, &unit, &partition, (const char **) file); if (error) return error; f->f_dev = &devsw[0]; /* must be biosdisk */ #ifdef _STANDALONE if (!kernel_loaded) { strncpy(bibp.bootpath, *file, sizeof(bibp.bootpath)); BI_ADD(&bibp, BTINFO_BOOTPATH, sizeof(bibp)); } #endif #ifndef NO_GPT /* Search by GPT label name */ if (strstr(devname, "NAME=") == devname) { f->f_dev = &devsw[0]; /* must be biosdisk */ return biosdisk_open_name(f, devname); } #endif #ifndef NO_RAIDFRAME /* Search by raidframe name */ if (strstr(devname, "raid") == devname) { f->f_dev = &devsw[0]; /* must be biosdisk */ return biosdisk_open_name(f, fname); } #endif error = dev2bios(devname, unit, &biosdev); if (error) return error; return biosdisk_open(f, biosdev, partition); }