| 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 | } |