devopen.c revision 1.2.2.2
1 1.2.2.2 kent /* $NetBSD: devopen.c,v 1.2.2.2 2005/04/29 11:28:02 kent Exp $ */ 2 1.2.2.2 kent 3 1.2.2.2 kent /*- 4 1.2.2.2 kent * Copyright (c) 1992, 1993 5 1.2.2.2 kent * The Regents of the University of California. All rights reserved. 6 1.2.2.2 kent * 7 1.2.2.2 kent * This code is derived from software contributed to Berkeley by 8 1.2.2.2 kent * Ralph Campbell. 9 1.2.2.2 kent * 10 1.2.2.2 kent * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 kent * modification, are permitted provided that the following conditions 12 1.2.2.2 kent * are met: 13 1.2.2.2 kent * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 kent * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 kent * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 kent * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 kent * documentation and/or other materials provided with the distribution. 18 1.2.2.2 kent * 3. Neither the name of the University nor the names of its contributors 19 1.2.2.2 kent * may be used to endorse or promote products derived from this software 20 1.2.2.2 kent * without specific prior written permission. 21 1.2.2.2 kent * 22 1.2.2.2 kent * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 1.2.2.2 kent * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.2.2.2 kent * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.2.2.2 kent * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 1.2.2.2 kent * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 1.2.2.2 kent * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 1.2.2.2 kent * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 1.2.2.2 kent * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 1.2.2.2 kent * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.2.2.2 kent * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.2.2.2 kent * SUCH DAMAGE. 33 1.2.2.2 kent * 34 1.2.2.2 kent * @(#)devopen.c 8.1 (Berkeley) 6/10/93 35 1.2.2.2 kent */ 36 1.2.2.2 kent 37 1.2.2.2 kent #include <lib/libsa/stand.h> 38 1.2.2.2 kent #include <lib/libkern/libkern.h> 39 1.2.2.2 kent 40 1.2.2.2 kent /* 41 1.2.2.2 kent * Decode the string 'fname', open the device and return the remaining 42 1.2.2.2 kent * file name if any. 43 1.2.2.2 kent */ 44 1.2.2.2 kent int 45 1.2.2.2 kent devopen(struct open_file *f, const char *fname, char **file) 46 1.2.2.2 kent { 47 1.2.2.2 kent int error; 48 1.2.2.2 kent char namebuf[128]; 49 1.2.2.2 kent char devtype[16]; 50 1.2.2.2 kent const char *cp; 51 1.2.2.2 kent char *ncp; 52 1.2.2.2 kent #if !defined(LIBSA_SINGLE_DEVICE) 53 1.2.2.2 kent int i; 54 1.2.2.2 kent struct devsw *dp; 55 1.2.2.2 kent #endif 56 1.2.2.2 kent 57 1.2.2.2 kent cp = fname; 58 1.2.2.2 kent ncp = (char *)fname; 59 1.2.2.2 kent 60 1.2.2.2 kent #ifdef arc 61 1.2.2.2 kent /* 62 1.2.2.2 kent * Look for "fdisk" (floppy disk?) or "rdisk" (rigid disk?) strings 63 1.2.2.2 kent * in OSLOADPARTITION like the following: 64 1.2.2.2 kent * 'scsi(0)disk(0)rdisk()partition(2)netbsd' (jazzio scsi disk) 65 1.2.2.2 kent * 'scsi(1)cdrom(1)fdisk()netbsd.arc' (jazzio scsi cdrom) 66 1.2.2.2 kent * 'multi(0)disk(0)fdisk()netbsd' (floppy disk) 67 1.2.2.2 kent * 'eisa(0)scsi(0)disk(0)rdisk()partition(2)netbsd' (eisa raid) 68 1.2.2.2 kent * etc. (the file can either be a relative path or an abosolute path). 69 1.2.2.2 kent */ 70 1.2.2.2 kent for (;;) { 71 1.2.2.2 kent if (strncmp(cp, "rdisk", 5) == 0 || 72 1.2.2.2 kent strncmp(cp, "fdisk", 5) == 0) { 73 1.2.2.2 kent strcpy(devtype, "disk"); 74 1.2.2.2 kent break; 75 1.2.2.2 kent } 76 1.2.2.2 kent while (*ncp && *ncp++ != ')') 77 1.2.2.2 kent ; 78 1.2.2.2 kent if (*ncp) 79 1.2.2.2 kent cp = ncp; 80 1.2.2.2 kent else 81 1.2.2.2 kent return ENXIO; 82 1.2.2.2 kent } 83 1.2.2.2 kent #endif 84 1.2.2.2 kent #ifdef sgimips 85 1.2.2.2 kent /* 86 1.2.2.2 kent * If device starts with a PCI bus specifier, skip past it so the 87 1.2.2.2 kent * device-matching code below gets the actual device type. Leave 88 1.2.2.2 kent * fname as is, since it'll be passed back to ARCS to open the 89 1.2.2.2 kent * device. This is necessary for the IP32. 90 1.2.2.2 kent */ 91 1.2.2.2 kent if (strncmp(cp, "pci", 3) == 0) { 92 1.2.2.2 kent while (*ncp && *ncp++ != ')') 93 1.2.2.2 kent ; 94 1.2.2.2 kent if (*ncp) 95 1.2.2.2 kent cp = ncp; 96 1.2.2.2 kent } 97 1.2.2.2 kent 98 1.2.2.2 kent /* 99 1.2.2.2 kent * Look for a string like 'scsi(0)disk(0)rdisk(0)partition(0)netbsd' 100 1.2.2.2 kent * or 'dksc(0,0,0)/netbsd' (the file can either be a relative path 101 1.2.2.2 kent * or an abosolute path). 102 1.2.2.2 kent */ 103 1.2.2.2 kent if (strncmp(cp, "scsi", 4) == 0) { 104 1.2.2.2 kent strcpy(devtype, "disk"); 105 1.2.2.2 kent } else if (strncmp(cp, "dksc", 4) == 0) { 106 1.2.2.2 kent strcpy(devtype, "disk"); 107 1.2.2.2 kent } else 108 1.2.2.2 kent return ENXIO; 109 1.2.2.2 kent #endif 110 1.2.2.2 kent 111 1.2.2.2 kent while (ncp != NULL && *ncp != 0) { 112 1.2.2.2 kent while (*ncp && *ncp++ != ')') 113 1.2.2.2 kent ; 114 1.2.2.2 kent if (*ncp) 115 1.2.2.2 kent cp = ncp; 116 1.2.2.2 kent } 117 1.2.2.2 kent 118 1.2.2.2 kent strncpy(namebuf, fname, sizeof(namebuf)); 119 1.2.2.2 kent namebuf[cp - fname] = 0; 120 1.2.2.2 kent 121 1.2.2.2 kent printf("devopen: %s type %s file %s\n", namebuf, devtype, cp); 122 1.2.2.2 kent #ifdef LIBSA_SINGLE_DEVICE 123 1.2.2.2 kent error = DEV_OPEN(dp)(f, fname); 124 1.2.2.2 kent #else /* !LIBSA_SINGLE_DEVICE */ 125 1.2.2.2 kent for (dp = devsw, i = 0; i < ndevs; dp++, i++) 126 1.2.2.2 kent if (dp->dv_name && strcmp(devtype, dp->dv_name) == 0) 127 1.2.2.2 kent goto found; 128 1.2.2.2 kent printf("Unknown device '%s'\nKnown devices are:", devtype); 129 1.2.2.2 kent for (dp = devsw, i = 0; i < ndevs; dp++, i++) 130 1.2.2.2 kent if (dp->dv_name) 131 1.2.2.2 kent printf(" %s", dp->dv_name); 132 1.2.2.2 kent printf("\n"); 133 1.2.2.2 kent return ENXIO; 134 1.2.2.2 kent 135 1.2.2.2 kent found: 136 1.2.2.2 kent error = (dp->dv_open)(f, namebuf); 137 1.2.2.2 kent #endif /* !LIBSA_SINGLE_DEVICE */ 138 1.2.2.2 kent if (error) 139 1.2.2.2 kent return error; 140 1.2.2.2 kent 141 1.2.2.2 kent #ifndef LIBSA_SINGLE_DEVICE 142 1.2.2.2 kent f->f_dev = dp; 143 1.2.2.2 kent #endif 144 1.2.2.2 kent if (file && *cp != '\0') 145 1.2.2.2 kent *file = (char *)cp; /* XXX */ 146 1.2.2.2 kent return 0; 147 1.2.2.2 kent } 148
Indexes created Fri Oct 03 02:09:57 GMT 2025