devopen.c revision 1.7 1 1.7 tsutsui /* $NetBSD: devopen.c,v 1.7 2005/02/20 13:59:27 tsutsui Exp $ */
2 1.2 thorpej
3 1.2 thorpej /*-
4 1.2 thorpej * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
5 1.2 thorpej * All rights reserved.
6 1.2 thorpej *
7 1.2 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.2 thorpej * by Jason R. Thorpe.
9 1.2 thorpej *
10 1.2 thorpej * Redistribution and use in source and binary forms, with or without
11 1.2 thorpej * modification, are permitted provided that the following conditions
12 1.2 thorpej * are met:
13 1.2 thorpej * 1. Redistributions of source code must retain the above copyright
14 1.2 thorpej * notice, this list of conditions and the following disclaimer.
15 1.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright
16 1.2 thorpej * notice, this list of conditions and the following disclaimer in the
17 1.2 thorpej * documentation and/or other materials provided with the distribution.
18 1.2 thorpej * 3. All advertising materials mentioning features or use of this software
19 1.2 thorpej * must display the following acknowledgement:
20 1.2 thorpej * This product includes software developed by the NetBSD
21 1.2 thorpej * Foundation, Inc. and its contributors.
22 1.2 thorpej * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.2 thorpej * contributors may be used to endorse or promote products derived
24 1.2 thorpej * from this software without specific prior written permission.
25 1.2 thorpej *
26 1.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.2 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.2 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.2 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.2 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.2 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.2 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.2 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.2 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.2 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.2 thorpej * POSSIBILITY OF SUCH DAMAGE.
37 1.2 thorpej */
38 1.1 thorpej
39 1.1 thorpej /*-
40 1.1 thorpej * Copyright (c) 1993 John Brezak
41 1.1 thorpej * All rights reserved.
42 1.1 thorpej *
43 1.1 thorpej * Redistribution and use in source and binary forms, with or without
44 1.1 thorpej * modification, are permitted provided that the following conditions
45 1.1 thorpej * are met:
46 1.1 thorpej * 1. Redistributions of source code must retain the above copyright
47 1.1 thorpej * notice, this list of conditions and the following disclaimer.
48 1.1 thorpej * 2. Redistributions in binary form must reproduce the above copyright
49 1.1 thorpej * notice, this list of conditions and the following disclaimer in the
50 1.1 thorpej * documentation and/or other materials provided with the distribution.
51 1.1 thorpej * 3. The name of the author may not be used to endorse or promote products
52 1.1 thorpej * derived from this software without specific prior written permission.
53 1.1 thorpej *
54 1.1 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
55 1.1 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
56 1.1 thorpej * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
57 1.1 thorpej * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
58 1.1 thorpej * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
59 1.1 thorpej * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
60 1.1 thorpej * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 1.1 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
62 1.1 thorpej * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
63 1.1 thorpej * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
64 1.1 thorpej * POSSIBILITY OF SUCH DAMAGE.
65 1.1 thorpej */
66 1.1 thorpej
67 1.1 thorpej #include <sys/param.h>
68 1.1 thorpej #include <sys/reboot.h>
69 1.3 gmcgarry
70 1.3 gmcgarry #include <lib/libkern/libkern.h>
71 1.1 thorpej
72 1.1 thorpej #include <lib/libsa/stand.h>
73 1.1 thorpej #include <hp300/stand/common/samachdep.h>
74 1.1 thorpej
75 1.1 thorpej u_int opendev;
76 1.1 thorpej
77 1.1 thorpej #define ispart(c) ((c) >= 'a' && (c) <= 'h')
78 1.1 thorpej
79 1.6 tsutsui static void usage(void);
80 1.6 tsutsui static int devlookup(const char * ,int);
81 1.6 tsutsui static int devparse(const char *, int *, int*, int*, int*, int*, char **);
82 1.6 tsutsui
83 1.6 tsutsui int
84 1.1 thorpej atoi(char *cp)
85 1.1 thorpej {
86 1.6 tsutsui int val = 0;
87 1.6 tsutsui
88 1.6 tsutsui while (isdigit(*cp))
89 1.6 tsutsui val = val * 10 + (*cp++ - '0');
90 1.6 tsutsui return val;
91 1.1 thorpej }
92 1.1 thorpej
93 1.6 tsutsui void
94 1.6 tsutsui usage(void)
95 1.1 thorpej {
96 1.6 tsutsui
97 1.6 tsutsui printf("Usage: device(adaptor, controller, drive, partition)file\n"
98 1.6 tsutsui " <device><unit><partitionletter>:file\n");
99 1.1 thorpej }
100 1.1 thorpej
101 1.6 tsutsui static int
102 1.7 tsutsui devlookup(const char *d, int len)
103 1.1 thorpej {
104 1.6 tsutsui struct devsw *dp = devsw;
105 1.6 tsutsui int i;
106 1.1 thorpej
107 1.6 tsutsui for (i = 0; i < ndevs; i++, dp++) {
108 1.6 tsutsui if (dp->dv_name && strncmp(dp->dv_name, d, len) == 0) {
109 1.6 tsutsui /*
110 1.6 tsutsui * Set the filesystem and startup up according to
111 1.6 tsutsui * the device being opened.
112 1.6 tsutsui */
113 1.6 tsutsui switch (i) {
114 1.6 tsutsui case 0: /* ct */
115 1.6 tsutsui memcpy(file_system, file_system_rawfs,
116 1.6 tsutsui sizeof(struct fs_ops));
117 1.6 tsutsui break;
118 1.6 tsutsui
119 1.6 tsutsui case 2: /* rd */
120 1.6 tsutsui case 4: /* sd */
121 1.6 tsutsui memcpy(file_system, file_system_ufs,
122 1.6 tsutsui sizeof(struct fs_ops));
123 1.6 tsutsui break;
124 1.6 tsutsui
125 1.6 tsutsui case 6: /* le */
126 1.6 tsutsui memcpy(file_system, file_system_nfs,
127 1.6 tsutsui sizeof(struct fs_ops));
128 1.6 tsutsui break;
129 1.6 tsutsui
130 1.6 tsutsui default:
131 1.6 tsutsui /* Agh! What happened?! */
132 1.6 tsutsui goto bad;
133 1.6 tsutsui }
134 1.6 tsutsui return i;
135 1.6 tsutsui }
136 1.1 thorpej }
137 1.1 thorpej
138 1.1 thorpej bad:
139 1.6 tsutsui printf("No such device - Configured devices are:\n");
140 1.6 tsutsui for (dp = devsw, i = 0; i < ndevs; i++, dp++)
141 1.6 tsutsui if (dp->dv_name)
142 1.6 tsutsui printf(" %s", dp->dv_name);
143 1.6 tsutsui printf("\n");
144 1.6 tsutsui errno = ENODEV;
145 1.6 tsutsui return -1;
146 1.1 thorpej }
147 1.1 thorpej
148 1.1 thorpej /*
149 1.1 thorpej * Parse a device spec in one of two forms.
150 1.1 thorpej *
151 1.1 thorpej * dev(adapt, ctlr, unit, part)file
152 1.1 thorpej * [A-Za-z]*[0-9]*[A-Za-z]:file
153 1.1 thorpej * dev unit part
154 1.1 thorpej */
155 1.6 tsutsui static int
156 1.7 tsutsui devparse(const char *fname, int *dev, int *adapt, int *ctlr, int *unit,
157 1.7 tsutsui int *part, char **file)
158 1.1 thorpej {
159 1.6 tsutsui int i;
160 1.6 tsutsui char *s, *args[4];
161 1.5 tsutsui
162 1.6 tsutsui /* get device name */
163 1.6 tsutsui for (s = (char *)fname; *s && *s != '/' && *s != ':' && *s != '('; s++)
164 1.6 tsutsui ;
165 1.6 tsutsui
166 1.6 tsutsui /* first form */
167 1.6 tsutsui if (*s == '(') {
168 1.6 tsutsui /* lookup device and get index */
169 1.6 tsutsui if ((*dev = devlookup(fname, s - fname)) < 0)
170 1.6 tsutsui goto baddev;
171 1.6 tsutsui
172 1.6 tsutsui /* tokenize device ident */
173 1.6 tsutsui args[0] = ++s;
174 1.6 tsutsui for (args[0] = s, i = 1; *s && *s != ')'; s++) {
175 1.6 tsutsui if (*s == ',')
176 1.6 tsutsui args[i++] = ++s;
177 1.6 tsutsui }
178 1.6 tsutsui switch(i) {
179 1.6 tsutsui case 4:
180 1.6 tsutsui *adapt = atoi(args[0]);
181 1.6 tsutsui *ctlr = atoi(args[1]);
182 1.6 tsutsui *unit = atoi(args[2]);
183 1.6 tsutsui *part = atoi(args[3]);
184 1.6 tsutsui break;
185 1.6 tsutsui case 3:
186 1.6 tsutsui *ctlr = atoi(args[0]);
187 1.6 tsutsui *unit = atoi(args[1]);
188 1.6 tsutsui *part = atoi(args[2]);
189 1.6 tsutsui break;
190 1.6 tsutsui case 2:
191 1.6 tsutsui *unit = atoi(args[0]);
192 1.6 tsutsui *part = atoi(args[1]);
193 1.6 tsutsui break;
194 1.6 tsutsui case 1:
195 1.6 tsutsui *part = atoi(args[0]);
196 1.6 tsutsui break;
197 1.6 tsutsui case 0:
198 1.6 tsutsui break;
199 1.6 tsutsui }
200 1.6 tsutsui *file = ++s;
201 1.1 thorpej }
202 1.1 thorpej
203 1.6 tsutsui /* second form */
204 1.6 tsutsui else if (*s == ':') {
205 1.6 tsutsui int temp;
206 1.1 thorpej
207 1.6 tsutsui /* isolate device */
208 1.6 tsutsui for (s = (char *)fname; *s != ':' && !isdigit(*s); s++);
209 1.1 thorpej
210 1.6 tsutsui /* lookup device and get index */
211 1.6 tsutsui if ((*dev = devlookup(fname, s - fname)) < 0)
212 1.6 tsutsui goto baddev;
213 1.6 tsutsui
214 1.6 tsutsui /* isolate unit */
215 1.6 tsutsui if ((temp = atoi(s)) > 255)
216 1.6 tsutsui goto bad;
217 1.6 tsutsui *adapt = temp / 8;
218 1.6 tsutsui *ctlr = temp % 8;
219 1.6 tsutsui for (; isdigit(*s); s++)
220 1.6 tsutsui ;
221 1.1 thorpej
222 1.6 tsutsui /* translate partition */
223 1.6 tsutsui if (!ispart(*s))
224 1.6 tsutsui goto bad;
225 1.1 thorpej
226 1.6 tsutsui *part = *s++ - 'a';
227 1.6 tsutsui if (*s != ':')
228 1.6 tsutsui goto bad;
229 1.6 tsutsui *file = ++s;
230 1.6 tsutsui }
231 1.6 tsutsui
232 1.6 tsutsui /* no device present */
233 1.6 tsutsui else
234 1.6 tsutsui *file = (char *)fname;
235 1.1 thorpej
236 1.6 tsutsui /* return the remaining unparsed part as the file to boot */
237 1.6 tsutsui return 0;
238 1.1 thorpej
239 1.1 thorpej bad:
240 1.6 tsutsui usage();
241 1.1 thorpej
242 1.1 thorpej baddev:
243 1.6 tsutsui return -1;
244 1.1 thorpej }
245 1.1 thorpej
246 1.1 thorpej
247 1.6 tsutsui int
248 1.7 tsutsui devopen(struct open_file *f, const char *fname, char **file)
249 1.1 thorpej {
250 1.6 tsutsui int error;
251 1.1 thorpej int dev, adapt, ctlr, unit, part;
252 1.1 thorpej struct devsw *dp = &devsw[0];
253 1.1 thorpej
254 1.1 thorpej dev = B_TYPE(bootdev);
255 1.1 thorpej adapt = B_ADAPTOR(bootdev);
256 1.1 thorpej ctlr = B_CONTROLLER(bootdev);
257 1.1 thorpej unit = B_UNIT(bootdev);
258 1.1 thorpej part = B_PARTITION(bootdev);
259 1.1 thorpej
260 1.6 tsutsui if ((error = devparse(fname, &dev, &adapt, &ctlr, &unit, &part, file))
261 1.6 tsutsui != 0)
262 1.6 tsutsui return error;
263 1.1 thorpej
264 1.1 thorpej /*
265 1.1 thorpej * Set up filesystem type based on what device we're opening.
266 1.1 thorpej */
267 1.1 thorpej switch (dev) {
268 1.1 thorpej case 0: /* ct */
269 1.6 tsutsui memcpy(file_system, file_system_rawfs, sizeof(struct fs_ops));
270 1.1 thorpej break;
271 1.1 thorpej
272 1.1 thorpej case 2: /* rd */
273 1.1 thorpej case 4: /* sd */
274 1.6 tsutsui memcpy(file_system, file_system_ufs, sizeof(struct fs_ops));
275 1.1 thorpej break;
276 1.1 thorpej
277 1.1 thorpej case 6: /* le */
278 1.6 tsutsui memcpy(file_system, file_system_nfs, sizeof(struct fs_ops));
279 1.1 thorpej break;
280 1.1 thorpej
281 1.1 thorpej default:
282 1.1 thorpej /* XXX what else should we do here? */
283 1.1 thorpej printf("WARNING: BOGUS BOOT DEV TYPE 0x%x!\n", dev);
284 1.6 tsutsui return EIO;
285 1.1 thorpej }
286 1.1 thorpej
287 1.1 thorpej dp = &devsw[dev];
288 1.1 thorpej
289 1.1 thorpej if (!dp->dv_open)
290 1.6 tsutsui return ENODEV;
291 1.1 thorpej
292 1.1 thorpej f->f_dev = dp;
293 1.1 thorpej
294 1.1 thorpej if ((error = (*dp->dv_open)(f, adapt, ctlr, part)) == 0) {
295 1.1 thorpej if ((error =
296 1.1 thorpej (*punitsw[dev].p_punit)(adapt, ctlr, &unit)) != 0) {
297 1.1 thorpej goto bad;
298 1.1 thorpej }
299 1.1 thorpej opendev = MAKEBOOTDEV(dev, adapt, ctlr, unit, part);
300 1.6 tsutsui return 0;
301 1.1 thorpej }
302 1.1 thorpej
303 1.1 thorpej bad:
304 1.1 thorpej printf("%s(%d,%d,%d,%d): %s\n", devsw[dev].dv_name,
305 1.1 thorpej adapt, ctlr, unit, part, strerror(error));
306 1.1 thorpej
307 1.6 tsutsui return error;
308 1.1 thorpej }
309