diff options
Diffstat (limited to 'xorg-server/hw/xfree86/common/xf86AutoConfig.c')
| -rw-r--r-- | xorg-server/hw/xfree86/common/xf86AutoConfig.c | 806 |
1 files changed, 403 insertions, 403 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86AutoConfig.c b/xorg-server/hw/xfree86/common/xf86AutoConfig.c index 1b9253269..7fc6518d3 100644 --- a/xorg-server/hw/xfree86/common/xf86AutoConfig.c +++ b/xorg-server/hw/xfree86/common/xf86AutoConfig.c @@ -1,403 +1,403 @@ -/*
- * Copyright 2003 by David H. Dawes.
- * Copyright 2003 by X-Oz Technologies.
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Except as contained in this notice, the name of the copyright holder(s)
- * and author(s) shall not be used in advertising or otherwise to promote
- * the sale, use or other dealings in this Software without prior written
- * authorization from the copyright holder(s) and author(s).
- *
- * Author: David Dawes <dawes@XFree86.Org>.
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include "xf86.h"
-#include "xf86Parser.h"
-#include "xf86tokens.h"
-#include "xf86Config.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "xf86pciBus.h"
-#ifdef __sparc__
-# include "xf86sbusBus.h"
-#endif
-
-#ifdef sun
-# include <sys/visual_io.h>
-# include <ctype.h>
-#endif
-
-/* Sections for the default built-in configuration. */
-
-#define BUILTIN_DEVICE_NAME \
- "\"Builtin Default %s Device %d\""
-
-#define BUILTIN_DEVICE_SECTION_PRE \
- "Section \"Device\"\n" \
- "\tIdentifier\t" BUILTIN_DEVICE_NAME "\n" \
- "\tDriver\t\"%s\"\n"
-
-#define BUILTIN_DEVICE_SECTION_POST \
- "EndSection\n\n"
-
-#define BUILTIN_DEVICE_SECTION \
- BUILTIN_DEVICE_SECTION_PRE \
- BUILTIN_DEVICE_SECTION_POST
-
-#define BUILTIN_SCREEN_NAME \
- "\"Builtin Default %s Screen %d\""
-
-#define BUILTIN_SCREEN_SECTION \
- "Section \"Screen\"\n" \
- "\tIdentifier\t" BUILTIN_SCREEN_NAME "\n" \
- "\tDevice\t" BUILTIN_DEVICE_NAME "\n" \
- "EndSection\n\n"
-
-#define BUILTIN_LAYOUT_SECTION_PRE \
- "Section \"ServerLayout\"\n" \
- "\tIdentifier\t\"Builtin Default Layout\"\n"
-
-#define BUILTIN_LAYOUT_SCREEN_LINE \
- "\tScreen\t" BUILTIN_SCREEN_NAME "\n"
-
-#define BUILTIN_LAYOUT_SECTION_POST \
- "EndSection\n\n"
-
-static const char **builtinConfig = NULL;
-static int builtinLines = 0;
-
-static void listPossibleVideoDrivers(char *matches[], int nmatches);
-
-/*
- * A built-in config file is stored as an array of strings, with each string
- * representing a single line. AppendToConfig() breaks up the string "s"
- * into lines, and appends those lines it to builtinConfig.
- */
-
-static void
-AppendToList(const char *s, const char ***list, int *lines)
-{
- char *str, *newstr, *p;
-
- str = xnfstrdup(s);
- for (p = strtok(str, "\n"); p; p = strtok(NULL, "\n")) {
- (*lines)++;
- *list = xnfrealloc(*list, (*lines + 1) * sizeof(**list));
- newstr = xnfalloc(strlen(p) + 2);
- strcpy(newstr, p);
- strcat(newstr, "\n");
- (*list)[*lines - 1] = newstr;
- (*list)[*lines] = NULL;
- }
- free(str);
-}
-
-static void
-FreeList(const char ***list, int *lines)
-{
- int i;
-
- for (i = 0; i < *lines; i++) {
- free((char *)((*list)[i]));
- }
- free(*list);
- *list = NULL;
- *lines = 0;
-}
-
-static void
-FreeConfig(void)
-{
- FreeList(&builtinConfig, &builtinLines);
-}
-
-static void
-AppendToConfig(const char *s)
-{
- AppendToList(s, &builtinConfig, &builtinLines);
-}
-
-Bool
-xf86AutoConfig(void)
-{
- char *deviceList[20];
- char **p;
- const char **cp;
- char buf[1024];
- ConfigStatus ret;
-
- listPossibleVideoDrivers(deviceList, 20);
-
- for (p = deviceList; *p; p++) {
- snprintf(buf, sizeof(buf), BUILTIN_DEVICE_SECTION, *p, 0, *p);
- AppendToConfig(buf);
- snprintf(buf, sizeof(buf), BUILTIN_SCREEN_SECTION, *p, 0, *p, 0);
- AppendToConfig(buf);
- }
-
- AppendToConfig(BUILTIN_LAYOUT_SECTION_PRE);
- for (p = deviceList; *p; p++) {
- snprintf(buf, sizeof(buf), BUILTIN_LAYOUT_SCREEN_LINE, *p, 0);
- AppendToConfig(buf);
- }
- AppendToConfig(BUILTIN_LAYOUT_SECTION_POST);
-
- for (p = deviceList; *p; p++) {
- free(*p);
- }
-
- xf86MsgVerb(X_DEFAULT, 0,
- "Using default built-in configuration (%d lines)\n",
- builtinLines);
-
- xf86MsgVerb(X_DEFAULT, 3, "--- Start of built-in configuration ---\n");
- for (cp = builtinConfig; *cp; cp++)
- xf86ErrorFVerb(3, "\t%s", *cp);
- xf86MsgVerb(X_DEFAULT, 3, "--- End of built-in configuration ---\n");
-
- xf86initConfigFiles();
- xf86setBuiltinConfig(builtinConfig);
- ret = xf86HandleConfigFile(TRUE);
- FreeConfig();
-
- if (ret != CONFIG_OK)
- xf86Msg(X_ERROR, "Error parsing the built-in default configuration.\n");
-
- return ret == CONFIG_OK;
-}
-
-static void
-listPossibleVideoDrivers(char *matches[], int nmatches)
-{
- int i;
-
- for (i = 0 ; i < nmatches ; i++) {
- matches[i] = NULL;
- }
- i = 0;
-
-#ifdef sun
- /* Check for driver type based on /dev/fb type and if valid, use
- it instead of PCI bus probe results */
- if (xf86Info.consoleFd >= 0) {
- struct vis_identifier visid;
- const char *cp;
- extern char xf86SolarisFbDev[PATH_MAX];
- int iret;
-
- SYSCALL(iret = ioctl(xf86Info.consoleFd, VIS_GETIDENTIFIER, &visid));
- if (iret < 0) {
- int fbfd;
-
- fbfd = open(xf86SolarisFbDev, O_RDONLY);
- if (fbfd >= 0) {
- SYSCALL(iret = ioctl(fbfd, VIS_GETIDENTIFIER, &visid));
- close(fbfd);
- }
- }
-
- if (iret < 0) {
- xf86Msg(X_WARNING,
- "could not get frame buffer identifier from %s\n",
- xf86SolarisFbDev);
- } else {
- xf86Msg(X_PROBED, "console driver: %s\n", visid.name);
-
- /* Special case from before the general case was set */
- if (strcmp(visid.name, "NVDAnvda") == 0) {
- matches[i++] = xnfstrdup("nvidia");
- }
-
- /* General case - split into vendor name (initial all-caps
- prefix) & driver name (rest of the string). */
- if (strcmp(visid.name, "SUNWtext") != 0) {
- for (cp = visid.name; (*cp != '\0') && isupper(*cp); cp++) {
- /* find end of all uppercase vendor section */
- }
- if ((cp != visid.name) && (*cp != '\0')) {
- char *driverName = xnfstrdup(cp);
- char *vendorName = xnfstrdup(visid.name);
- vendorName[cp - visid.name] = '\0';
-
- matches[i++] = vendorName;
- matches[i++] = driverName;
- }
- }
- }
- }
-#endif
-#ifdef __sparc__
- {
- char *sbusDriver = sparcDriverName();
- if (sbusDriver)
- matches[i++] = xnfstrdup(sbusDriver);
- }
-#endif
-
- i = xf86PciMatchDriver(matches, nmatches);
-
- /* Fallback to platform default hardware */
- if (i < (nmatches - 1)) {
-#if defined(__i386__) || defined(__amd64__) || defined(__hurd__)
- matches[i++] = xnfstrdup("vesa");
-#elif defined(__sparc__) && !defined(sun)
- matches[i++] = xnfstrdup("sunffb");
-#endif
- }
-
- /* Fallback to platform default frame buffer driver */
- if (i < (nmatches - 1)) {
-#if !defined(__linux__) && defined(__sparc__)
- matches[i++] = xnfstrdup("wsfb");
-#else
- matches[i++] = xnfstrdup("fbdev");
-#endif
- }
-}
-
-/* copy a screen section and enter the desired driver
- * and insert it at i in the list of screens */
-static Bool
-copyScreen(confScreenPtr oscreen, GDevPtr odev, int i, char *driver)
-{
- confScreenPtr nscreen;
- GDevPtr cptr = NULL;
-
- nscreen = malloc(sizeof(confScreenRec));
- if (!nscreen)
- return FALSE;
- memcpy(nscreen, oscreen, sizeof(confScreenRec));
-
- cptr = malloc(sizeof(GDevRec));
- if (!cptr) {
- free(nscreen);
- return FALSE;
- }
- memcpy(cptr, odev, sizeof(GDevRec));
-
- if (asprintf(&cptr->identifier, "Autoconfigured Video Device %s", driver)
- == -1) {
- free(cptr);
- free(nscreen);
- return FALSE;
- }
- cptr->driver = driver;
-
- xf86ConfigLayout.screens[i].screen = nscreen;
-
- /* now associate the new driver entry with the new screen entry */
- xf86ConfigLayout.screens[i].screen->device = cptr;
- cptr->myScreenSection = xf86ConfigLayout.screens[i].screen;
-
- return TRUE;
-}
-
-GDevPtr
-autoConfigDevice(GDevPtr preconf_device)
-{
- GDevPtr ptr = NULL;
- char *matches[20]; /* If we have more than 20 drivers we're in trouble */
- int num_matches = 0, num_screens = 0, i;
- screenLayoutPtr slp;
-
- if (!xf86configptr) {
- return NULL;
- }
-
- /* If there's a configured section with no driver chosen, use it */
- if (preconf_device) {
- ptr = preconf_device;
- } else {
- ptr = calloc(1, sizeof(GDevRec));
- if (!ptr) {
- return NULL;
- }
- ptr->chipID = -1;
- ptr->chipRev = -1;
- ptr->irq = -1;
-
- ptr->active = TRUE;
- ptr->claimed = FALSE;
- ptr->identifier = "Autoconfigured Video Device";
- ptr->driver = NULL;
- }
- if (!ptr->driver) {
- /* get all possible video drivers and count them */
- listPossibleVideoDrivers(matches, 20);
- for (; matches[num_matches]; num_matches++) {
- xf86Msg(X_DEFAULT, "Matched %s as autoconfigured driver %d\n",
- matches[num_matches], num_matches);
- }
-
- slp = xf86ConfigLayout.screens;
- if (slp) {
- /* count the number of screens and make space for
- * a new screen for each additional possible driver
- * minus one for the already existing first one
- * plus one for the terminating NULL */
- for (; slp[num_screens].screen; num_screens++);
- xf86ConfigLayout.screens = xnfcalloc(num_screens + num_matches,
- sizeof(screenLayoutRec));
- xf86ConfigLayout.screens[0] = slp[0];
-
- /* do the first match and set that for the original first screen */
- ptr->driver = matches[0];
- if (!xf86ConfigLayout.screens[0].screen->device) {
- xf86ConfigLayout.screens[0].screen->device = ptr;
- ptr->myScreenSection = xf86ConfigLayout.screens[0].screen;
- }
-
- /* for each other driver found, copy the first screen, insert it
- * into the list of screens and set the driver */
- i = 0;
- while (i++ < num_matches) {
- if (!copyScreen(slp[0].screen, ptr, i, matches[i]))
- return NULL;
- }
-
- /* shift the rest of the original screen list
- * to the end of the current screen list
- *
- * TODO Handle rest of multiple screen sections */
- for (i = 1; i < num_screens; i++) {
- xf86ConfigLayout.screens[i+num_matches] = slp[i];
- }
- xf86ConfigLayout.screens[num_screens+num_matches-1].screen = NULL;
- free(slp);
- } else {
- /* layout does not have any screens, not much to do */
- ptr->driver = matches[0];
- for (i = 1; matches[i] ; i++) {
- if (matches[i] != matches[0]) {
- free(matches[i]);
- }
- }
- }
- }
-
- xf86Msg(X_DEFAULT, "Assigned the driver to the xf86ConfigLayout\n");
-
- return ptr;
-}
+/* + * Copyright 2003 by David H. Dawes. + * Copyright 2003 by X-Oz Technologies. + * All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of the copyright holder(s) + * and author(s) shall not be used in advertising or otherwise to promote + * the sale, use or other dealings in this Software without prior written + * authorization from the copyright holder(s) and author(s). + * + * Author: David Dawes <dawes@XFree86.Org>. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include "xf86.h" +#include "xf86Parser.h" +#include "xf86tokens.h" +#include "xf86Config.h" +#include "xf86Priv.h" +#include "xf86_OSlib.h" +#include "xf86pciBus.h" +#ifdef __sparc__ +# include "xf86sbusBus.h" +#endif + +#ifdef sun +# include <sys/visual_io.h> +# include <ctype.h> +#endif + +/* Sections for the default built-in configuration. */ + +#define BUILTIN_DEVICE_NAME \ + "\"Builtin Default %s Device %d\"" + +#define BUILTIN_DEVICE_SECTION_PRE \ + "Section \"Device\"\n" \ + "\tIdentifier\t" BUILTIN_DEVICE_NAME "\n" \ + "\tDriver\t\"%s\"\n" + +#define BUILTIN_DEVICE_SECTION_POST \ + "EndSection\n\n" + +#define BUILTIN_DEVICE_SECTION \ + BUILTIN_DEVICE_SECTION_PRE \ + BUILTIN_DEVICE_SECTION_POST + +#define BUILTIN_SCREEN_NAME \ + "\"Builtin Default %s Screen %d\"" + +#define BUILTIN_SCREEN_SECTION \ + "Section \"Screen\"\n" \ + "\tIdentifier\t" BUILTIN_SCREEN_NAME "\n" \ + "\tDevice\t" BUILTIN_DEVICE_NAME "\n" \ + "EndSection\n\n" + +#define BUILTIN_LAYOUT_SECTION_PRE \ + "Section \"ServerLayout\"\n" \ + "\tIdentifier\t\"Builtin Default Layout\"\n" + +#define BUILTIN_LAYOUT_SCREEN_LINE \ + "\tScreen\t" BUILTIN_SCREEN_NAME "\n" + +#define BUILTIN_LAYOUT_SECTION_POST \ + "EndSection\n\n" + +static const char **builtinConfig = NULL; +static int builtinLines = 0; + +static void listPossibleVideoDrivers(char *matches[], int nmatches); + +/* + * A built-in config file is stored as an array of strings, with each string + * representing a single line. AppendToConfig() breaks up the string "s" + * into lines, and appends those lines it to builtinConfig. + */ + +static void +AppendToList(const char *s, const char ***list, int *lines) +{ + char *str, *newstr, *p; + + str = xnfstrdup(s); + for (p = strtok(str, "\n"); p; p = strtok(NULL, "\n")) { + (*lines)++; + *list = xnfrealloc(*list, (*lines + 1) * sizeof(**list)); + newstr = xnfalloc(strlen(p) + 2); + strcpy(newstr, p); + strcat(newstr, "\n"); + (*list)[*lines - 1] = newstr; + (*list)[*lines] = NULL; + } + free(str); +} + +static void +FreeList(const char ***list, int *lines) +{ + int i; + + for (i = 0; i < *lines; i++) { + free((char *)((*list)[i])); + } + free(*list); + *list = NULL; + *lines = 0; +} + +static void +FreeConfig(void) +{ + FreeList(&builtinConfig, &builtinLines); +} + +static void +AppendToConfig(const char *s) +{ + AppendToList(s, &builtinConfig, &builtinLines); +} + +Bool +xf86AutoConfig(void) +{ + char *deviceList[20]; + char **p; + const char **cp; + char buf[1024]; + ConfigStatus ret; + + listPossibleVideoDrivers(deviceList, 20); + + for (p = deviceList; *p; p++) { + snprintf(buf, sizeof(buf), BUILTIN_DEVICE_SECTION, *p, 0, *p); + AppendToConfig(buf); + snprintf(buf, sizeof(buf), BUILTIN_SCREEN_SECTION, *p, 0, *p, 0); + AppendToConfig(buf); + } + + AppendToConfig(BUILTIN_LAYOUT_SECTION_PRE); + for (p = deviceList; *p; p++) { + snprintf(buf, sizeof(buf), BUILTIN_LAYOUT_SCREEN_LINE, *p, 0); + AppendToConfig(buf); + } + AppendToConfig(BUILTIN_LAYOUT_SECTION_POST); + + for (p = deviceList; *p; p++) { + free(*p); + } + + xf86MsgVerb(X_DEFAULT, 0, + "Using default built-in configuration (%d lines)\n", + builtinLines); + + xf86MsgVerb(X_DEFAULT, 3, "--- Start of built-in configuration ---\n"); + for (cp = builtinConfig; *cp; cp++) + xf86ErrorFVerb(3, "\t%s", *cp); + xf86MsgVerb(X_DEFAULT, 3, "--- End of built-in configuration ---\n"); + + xf86initConfigFiles(); + xf86setBuiltinConfig(builtinConfig); + ret = xf86HandleConfigFile(TRUE); + FreeConfig(); + + if (ret != CONFIG_OK) + xf86Msg(X_ERROR, "Error parsing the built-in default configuration.\n"); + + return ret == CONFIG_OK; +} + +static void +listPossibleVideoDrivers(char *matches[], int nmatches) +{ + int i; + + for (i = 0 ; i < nmatches ; i++) { + matches[i] = NULL; + } + i = 0; + +#ifdef sun + /* Check for driver type based on /dev/fb type and if valid, use + it instead of PCI bus probe results */ + if (xf86Info.consoleFd >= 0) { + struct vis_identifier visid; + const char *cp; + extern char xf86SolarisFbDev[PATH_MAX]; + int iret; + + SYSCALL(iret = ioctl(xf86Info.consoleFd, VIS_GETIDENTIFIER, &visid)); + if (iret < 0) { + int fbfd; + + fbfd = open(xf86SolarisFbDev, O_RDONLY); + if (fbfd >= 0) { + SYSCALL(iret = ioctl(fbfd, VIS_GETIDENTIFIER, &visid)); + close(fbfd); + } + } + + if (iret < 0) { + xf86Msg(X_WARNING, + "could not get frame buffer identifier from %s\n", + xf86SolarisFbDev); + } else { + xf86Msg(X_PROBED, "console driver: %s\n", visid.name); + + /* Special case from before the general case was set */ + if (strcmp(visid.name, "NVDAnvda") == 0) { + matches[i++] = xnfstrdup("nvidia"); + } + + /* General case - split into vendor name (initial all-caps + prefix) & driver name (rest of the string). */ + if (strcmp(visid.name, "SUNWtext") != 0) { + for (cp = visid.name; (*cp != '\0') && isupper(*cp); cp++) { + /* find end of all uppercase vendor section */ + } + if ((cp != visid.name) && (*cp != '\0')) { + char *driverName = xnfstrdup(cp); + char *vendorName = xnfstrdup(visid.name); + vendorName[cp - visid.name] = '\0'; + + matches[i++] = vendorName; + matches[i++] = driverName; + } + } + } + } +#endif +#ifdef __sparc__ + { + char *sbusDriver = sparcDriverName(); + if (sbusDriver) + matches[i++] = xnfstrdup(sbusDriver); + } +#endif +#ifdef XSERVER_LIBPCIACCESS + i = xf86PciMatchDriver(matches, nmatches); +#endif + /* Fallback to platform default hardware */ + if (i < (nmatches - 1)) { +#if defined(__i386__) || defined(__amd64__) || defined(__hurd__) + matches[i++] = xnfstrdup("vesa"); +#elif defined(__sparc__) && !defined(sun) + matches[i++] = xnfstrdup("sunffb"); +#endif + } + + /* Fallback to platform default frame buffer driver */ + if (i < (nmatches - 1)) { +#if !defined(__linux__) && defined(__sparc__) + matches[i++] = xnfstrdup("wsfb"); +#else + matches[i++] = xnfstrdup("fbdev"); +#endif + } +} + +/* copy a screen section and enter the desired driver + * and insert it at i in the list of screens */ +static Bool +copyScreen(confScreenPtr oscreen, GDevPtr odev, int i, char *driver) +{ + confScreenPtr nscreen; + GDevPtr cptr = NULL; + + nscreen = malloc(sizeof(confScreenRec)); + if (!nscreen) + return FALSE; + memcpy(nscreen, oscreen, sizeof(confScreenRec)); + + cptr = malloc(sizeof(GDevRec)); + if (!cptr) { + free(nscreen); + return FALSE; + } + memcpy(cptr, odev, sizeof(GDevRec)); + + if (asprintf(&cptr->identifier, "Autoconfigured Video Device %s", driver) + == -1) { + free(cptr); + free(nscreen); + return FALSE; + } + cptr->driver = driver; + + xf86ConfigLayout.screens[i].screen = nscreen; + + /* now associate the new driver entry with the new screen entry */ + xf86ConfigLayout.screens[i].screen->device = cptr; + cptr->myScreenSection = xf86ConfigLayout.screens[i].screen; + + return TRUE; +} + +GDevPtr +autoConfigDevice(GDevPtr preconf_device) +{ + GDevPtr ptr = NULL; + char *matches[20]; /* If we have more than 20 drivers we're in trouble */ + int num_matches = 0, num_screens = 0, i; + screenLayoutPtr slp; + + if (!xf86configptr) { + return NULL; + } + + /* If there's a configured section with no driver chosen, use it */ + if (preconf_device) { + ptr = preconf_device; + } else { + ptr = calloc(1, sizeof(GDevRec)); + if (!ptr) { + return NULL; + } + ptr->chipID = -1; + ptr->chipRev = -1; + ptr->irq = -1; + + ptr->active = TRUE; + ptr->claimed = FALSE; + ptr->identifier = "Autoconfigured Video Device"; + ptr->driver = NULL; + } + if (!ptr->driver) { + /* get all possible video drivers and count them */ + listPossibleVideoDrivers(matches, 20); + for (; matches[num_matches]; num_matches++) { + xf86Msg(X_DEFAULT, "Matched %s as autoconfigured driver %d\n", + matches[num_matches], num_matches); + } + + slp = xf86ConfigLayout.screens; + if (slp) { + /* count the number of screens and make space for + * a new screen for each additional possible driver + * minus one for the already existing first one + * plus one for the terminating NULL */ + for (; slp[num_screens].screen; num_screens++); + xf86ConfigLayout.screens = xnfcalloc(num_screens + num_matches, + sizeof(screenLayoutRec)); + xf86ConfigLayout.screens[0] = slp[0]; + + /* do the first match and set that for the original first screen */ + ptr->driver = matches[0]; + if (!xf86ConfigLayout.screens[0].screen->device) { + xf86ConfigLayout.screens[0].screen->device = ptr; + ptr->myScreenSection = xf86ConfigLayout.screens[0].screen; + } + + /* for each other driver found, copy the first screen, insert it + * into the list of screens and set the driver */ + i = 0; + while (i++ < num_matches) { + if (!copyScreen(slp[0].screen, ptr, i, matches[i])) + return NULL; + } + + /* shift the rest of the original screen list + * to the end of the current screen list + * + * TODO Handle rest of multiple screen sections */ + for (i = 1; i < num_screens; i++) { + xf86ConfigLayout.screens[i+num_matches] = slp[i]; + } + xf86ConfigLayout.screens[num_screens+num_matches-1].screen = NULL; + free(slp); + } else { + /* layout does not have any screens, not much to do */ + ptr->driver = matches[0]; + for (i = 1; matches[i] ; i++) { + if (matches[i] != matches[0]) { + free(matches[i]); + } + } + } + } + + xf86Msg(X_DEFAULT, "Assigned the driver to the xf86ConfigLayout\n"); + + return ptr; +} |