devopen.c revision 1.2.10.2
1 1.2.10.2 skrll /* $NetBSD: devopen.c,v 1.2.10.2 2005/11/10 13:55:09 skrll Exp $ */ 2 1.2.10.2 skrll 3 1.2.10.2 skrll /*- 4 1.2.10.2 skrll * Copyright (c) 1992, 1993 5 1.2.10.2 skrll * The Regents of the University of California. All rights reserved. 6 1.2.10.2 skrll * 7 1.2.10.2 skrll * This code is derived from software contributed to Berkeley by 8 1.2.10.2 skrll * Ralph Campbell. 9 1.2.10.2 skrll * 10 1.2.10.2 skrll * Redistribution and use in source and binary forms, with or without 11 1.2.10.2 skrll * modification, are permitted provided that the following conditions 12 1.2.10.2 skrll * are met: 13 1.2.10.2 skrll * 1. Redistributions of source code must retain the above copyright 14 1.2.10.2 skrll * notice, this list of conditions and the following disclaimer. 15 1.2.10.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.10.2 skrll * notice, this list of conditions and the following disclaimer in the 17 1.2.10.2 skrll * documentation and/or other materials provided with the distribution. 18 1.2.10.2 skrll * 3. Neither the name of the University nor the names of its contributors 19 1.2.10.2 skrll * may be used to endorse or promote products derived from this software 20 1.2.10.2 skrll * without specific prior written permission. 21 1.2.10.2 skrll * 22 1.2.10.2 skrll * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 1.2.10.2 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 1.2.10.2 skrll * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 1.2.10.2 skrll * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 1.2.10.2 skrll * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 1.2.10.2 skrll * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 1.2.10.2 skrll * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 1.2.10.2 skrll * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 1.2.10.2 skrll * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.2.10.2 skrll * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 1.2.10.2 skrll * SUCH DAMAGE. 33 1.2.10.2 skrll * 34 1.2.10.2 skrll * @(#)devopen.c 8.1 (Berkeley) 6/10/93 35 1.2.10.2 skrll */ 36 1.2.10.2 skrll 37 1.2.10.2 skrll #include <lib/libsa/stand.h> 38 1.2.10.2 skrll #include <lib/libkern/libkern.h> 39 1.2.10.2 skrll 40 1.2.10.2 skrll /* 41 1.2.10.2 skrll * Decode the string 'fname', open the device and return the remaining 42 1.2.10.2 skrll * file name if any. 43 1.2.10.2 skrll */ 44 1.2.10.2 skrll int 45 1.2.10.2 skrll devopen(struct open_file *f, const char *fname, char **file) 46 1.2.10.2 skrll { 47 1.2.10.2 skrll int error; 48 1.2.10.2 skrll char namebuf[128]; 49 1.2.10.2 skrll char devtype[16]; 50 1.2.10.2 skrll const char *cp; 51 1.2.10.2 skrll char *ncp; 52 1.2.10.2 skrll #if !defined(LIBSA_SINGLE_DEVICE) 53 1.2.10.2 skrll int i; 54 1.2.10.2 skrll struct devsw *dp; 55 1.2.10.2 skrll #endif 56 1.2.10.2 skrll 57 1.2.10.2 skrll cp = fname; 58 1.2.10.2 skrll ncp = (char *)fname; 59 1.2.10.2 skrll 60 1.2.10.2 skrll #ifdef arc 61 1.2.10.2 skrll /* 62 1.2.10.2 skrll * Look for "fdisk" (floppy disk?) or "rdisk" (rigid disk?) strings 63 1.2.10.2 skrll * in OSLOADPARTITION like the following: 64 1.2.10.2 skrll * 'scsi(0)disk(0)rdisk()partition(2)netbsd' (jazzio scsi disk) 65 1.2.10.2 skrll * 'scsi(1)cdrom(1)fdisk()netbsd.arc' (jazzio scsi cdrom) 66 1.2.10.2 skrll * 'multi(0)disk(0)fdisk()netbsd' (floppy disk) 67 1.2.10.2 skrll * 'eisa(0)scsi(0)disk(0)rdisk()partition(2)netbsd' (eisa raid) 68 1.2.10.2 skrll * etc. (the file can either be a relative path or an abosolute path). 69 1.2.10.2 skrll */ 70 1.2.10.2 skrll for (;;) { 71 1.2.10.2 skrll if (strncmp(cp, "rdisk", 5) == 0 || 72 1.2.10.2 skrll strncmp(cp, "fdisk", 5) == 0) { 73 1.2.10.2 skrll strcpy(devtype, "disk"); 74 1.2.10.2 skrll break; 75 1.2.10.2 skrll } 76 1.2.10.2 skrll while (*ncp && *ncp++ != ')') 77 1.2.10.2 skrll ; 78 1.2.10.2 skrll if (*ncp) 79 1.2.10.2 skrll cp = ncp; 80 1.2.10.2 skrll else 81 1.2.10.2 skrll return ENXIO; 82 1.2.10.2 skrll } 83 1.2.10.2 skrll #endif 84 1.2.10.2 skrll #ifdef sgimips 85 1.2.10.2 skrll /* 86 1.2.10.2 skrll * If device starts with a PCI bus specifier, skip past it so the 87 1.2.10.2 skrll * device-matching code below gets the actual device type. Leave 88 1.2.10.2 skrll * fname as is, since it'll be passed back to ARCS to open the 89 1.2.10.2 skrll * device. This is necessary for the IP32. 90 1.2.10.2 skrll */ 91 1.2.10.2 skrll if (strncmp(cp, "pci", 3) == 0) { 92 1.2.10.2 skrll while (*ncp && *ncp++ != ')') 93 1.2.10.2 skrll ; 94 1.2.10.2 skrll if (*ncp) 95 1.2.10.2 skrll cp = ncp; 96 1.2.10.2 skrll } 97 1.2.10.2 skrll 98 1.2.10.2 skrll /* 99 1.2.10.2 skrll * Look for a string like 'scsi(0)disk(0)rdisk(0)partition(0)netbsd' 100 1.2.10.2 skrll * or 'dksc(0,0,0)/netbsd' (the file can either be a relative path 101 1.2.10.2 skrll * or an abosolute path). 102 1.2.10.2 skrll */ 103 1.2.10.2 skrll if (strncmp(cp, "scsi", 4) == 0) { 104 1.2.10.2 skrll strcpy(devtype, "disk"); 105 1.2.10.2 skrll } else if (strncmp(cp, "dksc", 4) == 0) { 106 1.2.10.2 skrll strcpy(devtype, "disk"); 107 1.2.10.2 skrll } else 108 1.2.10.2 skrll return ENXIO; 109 1.2.10.2 skrll #endif 110 1.2.10.2 skrll 111 1.2.10.2 skrll while (ncp != NULL && *ncp != 0) { 112 1.2.10.2 skrll while (*ncp && *ncp++ != ')') 113 1.2.10.2 skrll ; 114 1.2.10.2 skrll if (*ncp) 115 1.2.10.2 skrll cp = ncp; 116 1.2.10.2 skrll } 117 1.2.10.2 skrll 118 1.2.10.2 skrll strncpy(namebuf, fname, sizeof(namebuf)); 119 1.2.10.2 skrll namebuf[cp - fname] = 0; 120 1.2.10.2 skrll 121 1.2.10.2 skrll printf("devopen: %s type %s file %s\n", namebuf, devtype, cp); 122 1.2.10.2 skrll #ifdef LIBSA_SINGLE_DEVICE 123 1.2.10.2 skrll error = DEV_OPEN(dp)(f, fname); 124 1.2.10.2 skrll #else /* !LIBSA_SINGLE_DEVICE */ 125 1.2.10.2 skrll for (dp = devsw, i = 0; i < ndevs; dp++, i++) 126 1.2.10.2 skrll if (dp->dv_name && strcmp(devtype, dp->dv_name) == 0) 127 1.2.10.2 skrll goto found; 128 1.2.10.2 skrll printf("Unknown device '%s'\nKnown devices are:", devtype); 129 1.2.10.2 skrll for (dp = devsw, i = 0; i < ndevs; dp++, i++) 130 1.2.10.2 skrll if (dp->dv_name) 131 1.2.10.2 skrll printf(" %s", dp->dv_name); 132 1.2.10.2 skrll printf("\n"); 133 1.2.10.2 skrll return ENXIO; 134 1.2.10.2 skrll 135 1.2.10.2 skrll found: 136 1.2.10.2 skrll error = (dp->dv_open)(f, namebuf); 137 1.2.10.2 skrll #endif /* !LIBSA_SINGLE_DEVICE */ 138 1.2.10.2 skrll if (error) 139 1.2.10.2 skrll return error; 140 1.2.10.2 skrll 141 1.2.10.2 skrll #ifndef LIBSA_SINGLE_DEVICE 142 1.2.10.2 skrll f->f_dev = dp; 143 1.2.10.2 skrll #endif 144 1.2.10.2 skrll if (file && *cp != '\0') 145 1.2.10.2 skrll *file = (char *)cp; /* XXX */ 146 1.2.10.2 skrll return 0; 147 1.2.10.2 skrll } 148
Indexes created Fri Oct 03 02:09:57 GMT 2025