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a09e091a JB |
1 | /* |
2 | * Copyright 2003 by David H. Dawes. | |
3 | * Copyright 2003 by X-Oz Technologies. | |
4 | * All rights reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the "Software"), | |
8 | * to deal in the Software without restriction, including without limitation | |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 | * and/or sell copies of the Software, and to permit persons to whom the | |
11 | * Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
22 | * OTHER DEALINGS IN THE SOFTWARE. | |
23 | * | |
24 | * Except as contained in this notice, the name of the copyright holder(s) | |
25 | * and author(s) shall not be used in advertising or otherwise to promote | |
26 | * the sale, use or other dealings in this Software without prior written | |
27 | * authorization from the copyright holder(s) and author(s). | |
28 | * | |
29 | * Author: David Dawes <dawes@XFree86.Org>. | |
30 | */ | |
31 | ||
32 | #ifdef HAVE_XORG_CONFIG_H | |
33 | #include <xorg-config.h> | |
34 | #endif | |
35 | ||
36 | #include "xf86.h" | |
37 | #include "xf86Parser.h" | |
38 | #include "xf86tokens.h" | |
39 | #include "xf86Config.h" | |
40 | #include "xf86Priv.h" | |
41 | #include "xf86_OSlib.h" | |
42 | #include "xf86platformBus.h" | |
43 | #include "xf86pciBus.h" | |
44 | #ifdef __sparc__ | |
45 | #include "xf86sbusBus.h" | |
46 | #endif | |
47 | ||
48 | #ifdef sun | |
49 | #include <sys/visual_io.h> | |
50 | #include <ctype.h> | |
51 | #endif | |
52 | ||
53 | /* Sections for the default built-in configuration. */ | |
54 | ||
55 | #define BUILTIN_DEVICE_NAME \ | |
56 | "\"Builtin Default %s Device %d\"" | |
57 | ||
58 | #define BUILTIN_DEVICE_SECTION_PRE \ | |
59 | "Section \"Device\"\n" \ | |
60 | "\tIdentifier\t" BUILTIN_DEVICE_NAME "\n" \ | |
61 | "\tDriver\t\"%s\"\n" | |
62 | ||
63 | #define BUILTIN_DEVICE_SECTION_POST \ | |
64 | "EndSection\n\n" | |
65 | ||
66 | #define BUILTIN_DEVICE_SECTION \ | |
67 | BUILTIN_DEVICE_SECTION_PRE \ | |
68 | BUILTIN_DEVICE_SECTION_POST | |
69 | ||
70 | #define BUILTIN_SCREEN_NAME \ | |
71 | "\"Builtin Default %s Screen %d\"" | |
72 | ||
73 | #define BUILTIN_SCREEN_SECTION \ | |
74 | "Section \"Screen\"\n" \ | |
75 | "\tIdentifier\t" BUILTIN_SCREEN_NAME "\n" \ | |
76 | "\tDevice\t" BUILTIN_DEVICE_NAME "\n" \ | |
77 | "EndSection\n\n" | |
78 | ||
79 | #define BUILTIN_LAYOUT_SECTION_PRE \ | |
80 | "Section \"ServerLayout\"\n" \ | |
81 | "\tIdentifier\t\"Builtin Default Layout\"\n" | |
82 | ||
83 | #define BUILTIN_LAYOUT_SCREEN_LINE \ | |
84 | "\tScreen\t" BUILTIN_SCREEN_NAME "\n" | |
85 | ||
86 | #define BUILTIN_LAYOUT_SECTION_POST \ | |
87 | "EndSection\n\n" | |
88 | ||
89 | static const char **builtinConfig = NULL; | |
90 | static int builtinLines = 0; | |
91 | ||
92 | static void listPossibleVideoDrivers(char *matches[], int nmatches); | |
93 | ||
94 | /* | |
95 | * A built-in config file is stored as an array of strings, with each string | |
96 | * representing a single line. AppendToConfig() breaks up the string "s" | |
97 | * into lines, and appends those lines it to builtinConfig. | |
98 | */ | |
99 | ||
100 | static void | |
101 | AppendToList(const char *s, const char ***list, int *lines) | |
102 | { | |
103 | char *str, *newstr, *p; | |
104 | ||
105 | str = xnfstrdup(s); | |
106 | for (p = strtok(str, "\n"); p; p = strtok(NULL, "\n")) { | |
107 | (*lines)++; | |
108 | *list = xnfrealloc(*list, (*lines + 1) * sizeof(**list)); | |
109 | newstr = xnfalloc(strlen(p) + 2); | |
110 | strcpy(newstr, p); | |
111 | strcat(newstr, "\n"); | |
112 | (*list)[*lines - 1] = newstr; | |
113 | (*list)[*lines] = NULL; | |
114 | } | |
115 | free(str); | |
116 | } | |
117 | ||
118 | static void | |
119 | FreeList(const char ***list, int *lines) | |
120 | { | |
121 | int i; | |
122 | ||
123 | for (i = 0; i < *lines; i++) { | |
124 | free((char *) ((*list)[i])); | |
125 | } | |
126 | free(*list); | |
127 | *list = NULL; | |
128 | *lines = 0; | |
129 | } | |
130 | ||
131 | static void | |
132 | FreeConfig(void) | |
133 | { | |
134 | FreeList(&builtinConfig, &builtinLines); | |
135 | } | |
136 | ||
137 | static void | |
138 | AppendToConfig(const char *s) | |
139 | { | |
140 | AppendToList(s, &builtinConfig, &builtinLines); | |
141 | } | |
142 | ||
143 | Bool | |
144 | xf86AutoConfig(void) | |
145 | { | |
146 | char *deviceList[20]; | |
147 | char **p; | |
148 | const char **cp; | |
149 | char buf[1024]; | |
150 | ConfigStatus ret; | |
151 | ||
152 | listPossibleVideoDrivers(deviceList, 20); | |
153 | ||
154 | for (p = deviceList; *p; p++) { | |
155 | snprintf(buf, sizeof(buf), BUILTIN_DEVICE_SECTION, *p, 0, *p); | |
156 | AppendToConfig(buf); | |
157 | snprintf(buf, sizeof(buf), BUILTIN_SCREEN_SECTION, *p, 0, *p, 0); | |
158 | AppendToConfig(buf); | |
159 | } | |
160 | ||
161 | AppendToConfig(BUILTIN_LAYOUT_SECTION_PRE); | |
162 | for (p = deviceList; *p; p++) { | |
163 | snprintf(buf, sizeof(buf), BUILTIN_LAYOUT_SCREEN_LINE, *p, 0); | |
164 | AppendToConfig(buf); | |
165 | } | |
166 | AppendToConfig(BUILTIN_LAYOUT_SECTION_POST); | |
167 | ||
168 | for (p = deviceList; *p; p++) { | |
169 | free(*p); | |
170 | } | |
171 | ||
172 | xf86MsgVerb(X_DEFAULT, 0, | |
173 | "Using default built-in configuration (%d lines)\n", | |
174 | builtinLines); | |
175 | ||
176 | xf86MsgVerb(X_DEFAULT, 3, "--- Start of built-in configuration ---\n"); | |
177 | for (cp = builtinConfig; *cp; cp++) | |
178 | xf86ErrorFVerb(3, "\t%s", *cp); | |
179 | xf86MsgVerb(X_DEFAULT, 3, "--- End of built-in configuration ---\n"); | |
180 | ||
181 | xf86initConfigFiles(); | |
182 | xf86setBuiltinConfig(builtinConfig); | |
183 | ret = xf86HandleConfigFile(TRUE); | |
184 | FreeConfig(); | |
185 | ||
186 | if (ret != CONFIG_OK) | |
187 | xf86Msg(X_ERROR, "Error parsing the built-in default configuration.\n"); | |
188 | ||
189 | return ret == CONFIG_OK; | |
190 | } | |
191 | ||
192 | static void | |
193 | listPossibleVideoDrivers(char *matches[], int nmatches) | |
194 | { | |
195 | int i; | |
196 | ||
197 | for (i = 0; i < nmatches; i++) { | |
198 | matches[i] = NULL; | |
199 | } | |
200 | i = 0; | |
201 | ||
202 | #ifdef XSERVER_PLATFORM_BUS | |
203 | i = xf86PlatformMatchDriver(matches, nmatches); | |
204 | #endif | |
205 | #ifdef sun | |
206 | /* Check for driver type based on /dev/fb type and if valid, use | |
207 | it instead of PCI bus probe results */ | |
208 | if (xf86Info.consoleFd >= 0 && (i < (nmatches - 1))) { | |
209 | struct vis_identifier visid; | |
210 | const char *cp; | |
211 | extern char xf86SolarisFbDev[PATH_MAX]; | |
212 | int iret; | |
213 | ||
214 | SYSCALL(iret = ioctl(xf86Info.consoleFd, VIS_GETIDENTIFIER, &visid)); | |
215 | if (iret < 0) { | |
216 | int fbfd; | |
217 | ||
218 | fbfd = open(xf86SolarisFbDev, O_RDONLY); | |
219 | if (fbfd >= 0) { | |
220 | SYSCALL(iret = ioctl(fbfd, VIS_GETIDENTIFIER, &visid)); | |
221 | close(fbfd); | |
222 | } | |
223 | } | |
224 | ||
225 | if (iret < 0) { | |
226 | xf86Msg(X_WARNING, | |
227 | "could not get frame buffer identifier from %s\n", | |
228 | xf86SolarisFbDev); | |
229 | } | |
230 | else { | |
231 | xf86Msg(X_PROBED, "console driver: %s\n", visid.name); | |
232 | ||
233 | /* Special case from before the general case was set */ | |
234 | if (strcmp(visid.name, "NVDAnvda") == 0) { | |
235 | matches[i++] = xnfstrdup("nvidia"); | |
236 | } | |
237 | ||
238 | /* General case - split into vendor name (initial all-caps | |
239 | prefix) & driver name (rest of the string). */ | |
240 | if (strcmp(visid.name, "SUNWtext") != 0) { | |
241 | for (cp = visid.name; (*cp != '\0') && isupper(*cp); cp++) { | |
242 | /* find end of all uppercase vendor section */ | |
243 | } | |
244 | if ((cp != visid.name) && (*cp != '\0')) { | |
245 | char *driverName = xnfstrdup(cp); | |
246 | char *vendorName = xnfstrdup(visid.name); | |
247 | ||
248 | vendorName[cp - visid.name] = '\0'; | |
249 | ||
250 | matches[i++] = vendorName; | |
251 | matches[i++] = driverName; | |
252 | } | |
253 | } | |
254 | } | |
255 | } | |
256 | #endif | |
257 | #ifdef __sparc__ | |
258 | if (i < (nmatches - 1)) | |
259 | { | |
260 | char *sbusDriver = sparcDriverName(); | |
261 | ||
262 | if (sbusDriver) | |
263 | matches[i++] = xnfstrdup(sbusDriver); | |
264 | } | |
265 | #endif | |
266 | #ifdef XSERVER_LIBPCIACCESS | |
267 | if (i < (nmatches - 1)) | |
268 | i = xf86PciMatchDriver(matches, nmatches); | |
269 | #endif | |
270 | ||
271 | #if defined(__linux__) | |
272 | matches[i++] = xnfstrdup("modesetting"); | |
273 | #endif | |
274 | ||
275 | #if !defined(sun) | |
276 | /* Fallback to platform default frame buffer driver */ | |
277 | if (i < (nmatches - 1)) { | |
278 | #if !defined(__linux__) && defined(__sparc__) | |
279 | matches[i++] = xnfstrdup("wsfb"); | |
280 | #else | |
281 | matches[i++] = xnfstrdup("fbdev"); | |
282 | #endif | |
283 | } | |
284 | #endif /* !sun */ | |
285 | ||
286 | /* Fallback to platform default hardware */ | |
287 | if (i < (nmatches - 1)) { | |
288 | #if defined(__i386__) || defined(__amd64__) || defined(__hurd__) | |
289 | matches[i++] = xnfstrdup("vesa"); | |
290 | #elif defined(__sparc__) && !defined(sun) | |
291 | matches[i++] = xnfstrdup("sunffb"); | |
292 | #endif | |
293 | } | |
294 | } | |
295 | ||
296 | /* copy a screen section and enter the desired driver | |
297 | * and insert it at i in the list of screens */ | |
298 | static Bool | |
299 | copyScreen(confScreenPtr oscreen, GDevPtr odev, int i, char *driver) | |
300 | { | |
301 | confScreenPtr nscreen; | |
302 | GDevPtr cptr = NULL; | |
303 | ||
304 | nscreen = malloc(sizeof(confScreenRec)); | |
305 | if (!nscreen) | |
306 | return FALSE; | |
307 | memcpy(nscreen, oscreen, sizeof(confScreenRec)); | |
308 | ||
309 | cptr = malloc(sizeof(GDevRec)); | |
310 | if (!cptr) { | |
311 | free(nscreen); | |
312 | return FALSE; | |
313 | } | |
314 | memcpy(cptr, odev, sizeof(GDevRec)); | |
315 | ||
316 | if (asprintf(&cptr->identifier, "Autoconfigured Video Device %s", driver) | |
317 | == -1) { | |
318 | free(cptr); | |
319 | free(nscreen); | |
320 | return FALSE; | |
321 | } | |
322 | cptr->driver = driver; | |
323 | ||
324 | xf86ConfigLayout.screens[i].screen = nscreen; | |
325 | ||
326 | /* now associate the new driver entry with the new screen entry */ | |
327 | xf86ConfigLayout.screens[i].screen->device = cptr; | |
328 | cptr->myScreenSection = xf86ConfigLayout.screens[i].screen; | |
329 | ||
330 | return TRUE; | |
331 | } | |
332 | ||
333 | GDevPtr | |
334 | autoConfigDevice(GDevPtr preconf_device) | |
335 | { | |
336 | GDevPtr ptr = NULL; | |
337 | char *matches[20]; /* If we have more than 20 drivers we're in trouble */ | |
338 | int num_matches = 0, num_screens = 0, i; | |
339 | screenLayoutPtr slp; | |
340 | ||
341 | if (!xf86configptr) { | |
342 | return NULL; | |
343 | } | |
344 | ||
345 | /* If there's a configured section with no driver chosen, use it */ | |
346 | if (preconf_device) { | |
347 | ptr = preconf_device; | |
348 | } | |
349 | else { | |
350 | ptr = calloc(1, sizeof(GDevRec)); | |
351 | if (!ptr) { | |
352 | return NULL; | |
353 | } | |
354 | ptr->chipID = -1; | |
355 | ptr->chipRev = -1; | |
356 | ptr->irq = -1; | |
357 | ||
358 | ptr->active = TRUE; | |
359 | ptr->claimed = FALSE; | |
360 | ptr->identifier = "Autoconfigured Video Device"; | |
361 | ptr->driver = NULL; | |
362 | } | |
363 | if (!ptr->driver) { | |
364 | /* get all possible video drivers and count them */ | |
365 | listPossibleVideoDrivers(matches, 20); | |
366 | for (; matches[num_matches]; num_matches++) { | |
367 | xf86Msg(X_DEFAULT, "Matched %s as autoconfigured driver %d\n", | |
368 | matches[num_matches], num_matches); | |
369 | } | |
370 | ||
371 | slp = xf86ConfigLayout.screens; | |
372 | if (slp) { | |
373 | /* count the number of screens and make space for | |
374 | * a new screen for each additional possible driver | |
375 | * minus one for the already existing first one | |
376 | * plus one for the terminating NULL */ | |
377 | for (; slp[num_screens].screen; num_screens++); | |
378 | xf86ConfigLayout.screens = xnfcalloc(num_screens + num_matches, | |
379 | sizeof(screenLayoutRec)); | |
380 | xf86ConfigLayout.screens[0] = slp[0]; | |
381 | ||
382 | /* do the first match and set that for the original first screen */ | |
383 | ptr->driver = matches[0]; | |
384 | if (!xf86ConfigLayout.screens[0].screen->device) { | |
385 | xf86ConfigLayout.screens[0].screen->device = ptr; | |
386 | ptr->myScreenSection = xf86ConfigLayout.screens[0].screen; | |
387 | } | |
388 | ||
389 | /* for each other driver found, copy the first screen, insert it | |
390 | * into the list of screens and set the driver */ | |
391 | i = 0; | |
392 | while (i++ < num_matches) { | |
393 | if (!copyScreen(slp[0].screen, ptr, i, matches[i])) | |
394 | return NULL; | |
395 | } | |
396 | ||
397 | /* shift the rest of the original screen list | |
398 | * to the end of the current screen list | |
399 | * | |
400 | * TODO Handle rest of multiple screen sections */ | |
401 | for (i = 1; i < num_screens; i++) { | |
402 | xf86ConfigLayout.screens[i + num_matches] = slp[i]; | |
403 | } | |
404 | xf86ConfigLayout.screens[num_screens + num_matches - 1].screen = | |
405 | NULL; | |
406 | free(slp); | |
407 | } | |
408 | else { | |
409 | /* layout does not have any screens, not much to do */ | |
410 | ptr->driver = matches[0]; | |
411 | for (i = 1; matches[i]; i++) { | |
412 | if (matches[i] != matches[0]) { | |
413 | free(matches[i]); | |
414 | } | |
415 | } | |
416 | } | |
417 | } | |
418 | ||
419 | xf86Msg(X_DEFAULT, "Assigned the driver to the xf86ConfigLayout\n"); | |
420 | ||
421 | return ptr; | |
422 | } |