429 lines
12 KiB
C
429 lines
12 KiB
C
/*
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* Copyright 2003 by David H. Dawes.
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* Copyright 2003 by X-Oz Technologies.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*
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* Author: David Dawes <dawes@XFree86.Org>.
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf86.h"
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#include "xf86Parser.h"
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#include "xf86tokens.h"
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#include "xf86Config.h"
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#include "xf86Priv.h"
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#include "xf86_OSlib.h"
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#include "xf86platformBus.h"
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#include "xf86pciBus.h"
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#if defined(__sparc__)
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#include "xf86sbusBus.h"
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#endif
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#ifdef sun
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#include <sys/visual_io.h>
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#include <ctype.h>
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#endif
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/* Sections for the default built-in configuration. */
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#define BUILTIN_DEVICE_NAME \
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"\"Builtin Default %s Device %d\""
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#define BUILTIN_DEVICE_SECTION_PRE \
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"Section \"Device\"\n" \
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"\tIdentifier\t" BUILTIN_DEVICE_NAME "\n" \
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"\tDriver\t\"%s\"\n"
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#define BUILTIN_DEVICE_SECTION_POST \
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"EndSection\n\n"
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#define BUILTIN_DEVICE_SECTION \
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BUILTIN_DEVICE_SECTION_PRE \
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BUILTIN_DEVICE_SECTION_POST
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#define BUILTIN_SCREEN_NAME \
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"\"Builtin Default %s Screen %d\""
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#define BUILTIN_SCREEN_SECTION \
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"Section \"Screen\"\n" \
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"\tIdentifier\t" BUILTIN_SCREEN_NAME "\n" \
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"\tDevice\t" BUILTIN_DEVICE_NAME "\n" \
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"EndSection\n\n"
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#define BUILTIN_LAYOUT_SECTION_PRE \
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"Section \"ServerLayout\"\n" \
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"\tIdentifier\t\"Builtin Default Layout\"\n"
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#define BUILTIN_LAYOUT_SCREEN_LINE \
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"\tScreen\t" BUILTIN_SCREEN_NAME "\n"
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#define BUILTIN_LAYOUT_SECTION_POST \
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"EndSection\n\n"
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static const char **builtinConfig = NULL;
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static int builtinLines = 0;
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static void listPossibleVideoDrivers(char *matches[], int nmatches);
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/*
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* A built-in config file is stored as an array of strings, with each string
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* representing a single line. AppendToConfig() breaks up the string "s"
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* into lines, and appends those lines it to builtinConfig.
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*/
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static void
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AppendToList(const char *s, const char ***list, int *lines)
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{
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char *str, *newstr, *p;
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str = xnfstrdup(s);
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for (p = strtok(str, "\n"); p; p = strtok(NULL, "\n")) {
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(*lines)++;
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*list = xnfreallocarray(*list, *lines + 1, sizeof(**list));
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newstr = xnfalloc(strlen(p) + 2);
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strcpy(newstr, p);
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strcat(newstr, "\n");
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(*list)[*lines - 1] = newstr;
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(*list)[*lines] = NULL;
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}
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free(str);
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}
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static void
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FreeList(const char ***list, int *lines)
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{
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int i;
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for (i = 0; i < *lines; i++) {
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free((char *) ((*list)[i]));
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}
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free(*list);
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*list = NULL;
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*lines = 0;
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}
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static void
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FreeConfig(void)
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{
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FreeList(&builtinConfig, &builtinLines);
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}
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static void
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AppendToConfig(const char *s)
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{
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AppendToList(s, &builtinConfig, &builtinLines);
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}
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Bool
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xf86AutoConfig(void)
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{
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char *deviceList[20];
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char **p;
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const char **cp;
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char buf[1024];
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ConfigStatus ret;
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listPossibleVideoDrivers(deviceList, 20);
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for (p = deviceList; *p; p++) {
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snprintf(buf, sizeof(buf), BUILTIN_DEVICE_SECTION, *p, 0, *p);
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AppendToConfig(buf);
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snprintf(buf, sizeof(buf), BUILTIN_SCREEN_SECTION, *p, 0, *p, 0);
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AppendToConfig(buf);
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}
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AppendToConfig(BUILTIN_LAYOUT_SECTION_PRE);
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for (p = deviceList; *p; p++) {
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snprintf(buf, sizeof(buf), BUILTIN_LAYOUT_SCREEN_LINE, *p, 0);
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AppendToConfig(buf);
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}
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AppendToConfig(BUILTIN_LAYOUT_SECTION_POST);
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for (p = deviceList; *p; p++) {
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free(*p);
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}
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xf86MsgVerb(X_DEFAULT, 0,
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"Using default built-in configuration (%d lines)\n",
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builtinLines);
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xf86MsgVerb(X_DEFAULT, 3, "--- Start of built-in configuration ---\n");
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for (cp = builtinConfig; *cp; cp++)
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xf86ErrorFVerb(3, "\t%s", *cp);
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xf86MsgVerb(X_DEFAULT, 3, "--- End of built-in configuration ---\n");
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xf86initConfigFiles();
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xf86setBuiltinConfig(builtinConfig);
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ret = xf86HandleConfigFile(TRUE);
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FreeConfig();
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if (ret != CONFIG_OK)
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xf86Msg(X_ERROR, "Error parsing the built-in default configuration.\n");
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return ret == CONFIG_OK;
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}
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static void
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listPossibleVideoDrivers(char *matches[], int nmatches)
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{
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int i;
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for (i = 0; i < nmatches; i++) {
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matches[i] = NULL;
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}
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i = 0;
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#ifdef XSERVER_PLATFORM_BUS
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i = xf86PlatformMatchDriver(matches, nmatches);
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#endif
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#ifdef sun
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/* Check for driver type based on /dev/fb type and if valid, use
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it instead of PCI bus probe results */
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if (xf86Info.consoleFd >= 0 && (i < (nmatches - 1))) {
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struct vis_identifier visid;
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const char *cp;
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int iret;
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SYSCALL(iret = ioctl(xf86Info.consoleFd, VIS_GETIDENTIFIER, &visid));
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if (iret < 0) {
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int fbfd;
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fbfd = open(xf86SolarisFbDev, O_RDONLY);
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if (fbfd >= 0) {
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SYSCALL(iret = ioctl(fbfd, VIS_GETIDENTIFIER, &visid));
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close(fbfd);
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}
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}
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if (iret < 0) {
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xf86Msg(X_WARNING,
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"could not get frame buffer identifier from %s\n",
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xf86SolarisFbDev);
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}
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else {
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xf86Msg(X_PROBED, "console driver: %s\n", visid.name);
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/* Special case from before the general case was set */
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if (strcmp(visid.name, "NVDAnvda") == 0) {
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matches[i++] = xnfstrdup("nvidia");
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}
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/* General case - split into vendor name (initial all-caps
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prefix) & driver name (rest of the string). */
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if (strcmp(visid.name, "SUNWtext") != 0) {
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for (cp = visid.name; (*cp != '\0') && isupper(*cp); cp++) {
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/* find end of all uppercase vendor section */
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}
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if ((cp != visid.name) && (*cp != '\0')) {
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char *driverName = xnfstrdup(cp);
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char *vendorName = xnfstrdup(visid.name);
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vendorName[cp - visid.name] = '\0';
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matches[i++] = vendorName;
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matches[i++] = driverName;
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}
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}
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}
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}
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#endif
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#ifdef __sparc__
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if (i < (nmatches - 1))
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{
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char *sbusDriver = sparcDriverName();
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if (sbusDriver)
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matches[i++] = xnfstrdup(sbusDriver);
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}
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#endif
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#ifdef XSERVER_LIBPCIACCESS
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if (i < (nmatches - 1))
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i += xf86PciMatchDriver(&matches[i], nmatches - i);
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#endif
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#if defined(__linux__)
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matches[i++] = xnfstrdup("modesetting");
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#endif
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#if !defined(sun)
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/* Fallback to platform default frame buffer driver */
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if (i < (nmatches - 1)) {
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#if defined(__OpenBSD__)
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#if !defined(__i386__) && !defined(__amd64__)
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if (i == 0) {
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matches[i++] = xnfstrdup("wsfb");
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}
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#endif
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#elif !defined(__linux__) && defined(__sparc__)
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matches[i++] = xnfstrdup("wsfb");
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#else
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matches[i++] = xnfstrdup("fbdev");
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#endif
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}
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#endif /* !sun */
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/* Fallback to platform default hardware */
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if (i < (nmatches - 1)) {
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#if defined(__i386__) || defined(__amd64__) || defined(__hurd__)
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matches[i++] = xnfstrdup("vesa");
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#elif defined(__sparc__) && defined(__linux__)
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matches[i++] = xnfstrdup("sunffb");
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#endif
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}
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}
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/* copy a screen section and enter the desired driver
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* and insert it at i in the list of screens */
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static Bool
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copyScreen(confScreenPtr oscreen, GDevPtr odev, int i, char *driver)
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{
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confScreenPtr nscreen;
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GDevPtr cptr = NULL;
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char *identifier;
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nscreen = malloc(sizeof(confScreenRec));
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if (!nscreen)
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return FALSE;
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memcpy(nscreen, oscreen, sizeof(confScreenRec));
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cptr = malloc(sizeof(GDevRec));
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if (!cptr) {
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free(nscreen);
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return FALSE;
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}
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memcpy(cptr, odev, sizeof(GDevRec));
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if (asprintf(&identifier, "Autoconfigured Video Device %s", driver)
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== -1) {
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free(cptr);
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free(nscreen);
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return FALSE;
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}
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cptr->driver = driver;
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cptr->identifier = identifier;
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xf86ConfigLayout.screens[i].screen = nscreen;
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/* now associate the new driver entry with the new screen entry */
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xf86ConfigLayout.screens[i].screen->device = cptr;
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cptr->myScreenSection = xf86ConfigLayout.screens[i].screen;
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return TRUE;
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}
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GDevPtr
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autoConfigDevice(GDevPtr preconf_device)
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{
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GDevPtr ptr = NULL;
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char *matches[20]; /* If we have more than 20 drivers we're in trouble */
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int num_matches = 0, num_screens = 0, i;
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screenLayoutPtr slp;
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if (!xf86configptr) {
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return NULL;
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}
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/* If there's a configured section with no driver chosen, use it */
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if (preconf_device) {
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ptr = preconf_device;
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}
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else {
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ptr = calloc(1, sizeof(GDevRec));
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if (!ptr) {
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return NULL;
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}
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ptr->chipID = -1;
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ptr->chipRev = -1;
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ptr->irq = -1;
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ptr->active = TRUE;
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ptr->claimed = FALSE;
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ptr->identifier = "Autoconfigured Video Device";
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ptr->driver = NULL;
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}
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if (!ptr->driver) {
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/* get all possible video drivers and count them */
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listPossibleVideoDrivers(matches, 20);
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for (; matches[num_matches]; num_matches++) {
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xf86Msg(X_DEFAULT, "Matched %s as autoconfigured driver %d\n",
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matches[num_matches], num_matches);
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}
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slp = xf86ConfigLayout.screens;
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if (slp) {
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/* count the number of screens and make space for
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* a new screen for each additional possible driver
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* minus one for the already existing first one
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* plus one for the terminating NULL */
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for (; slp[num_screens].screen; num_screens++);
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xf86ConfigLayout.screens = xnfcalloc(num_screens + num_matches,
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sizeof(screenLayoutRec));
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xf86ConfigLayout.screens[0] = slp[0];
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/* do the first match and set that for the original first screen */
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ptr->driver = matches[0];
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if (!xf86ConfigLayout.screens[0].screen->device) {
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xf86ConfigLayout.screens[0].screen->device = ptr;
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ptr->myScreenSection = xf86ConfigLayout.screens[0].screen;
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}
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/* for each other driver found, copy the first screen, insert it
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* into the list of screens and set the driver */
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for (i = 1; i < num_matches; i++) {
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if (!copyScreen(slp[0].screen, ptr, i, matches[i]))
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return NULL;
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}
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/* shift the rest of the original screen list
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* to the end of the current screen list
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*
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* TODO Handle rest of multiple screen sections */
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for (i = 1; i < num_screens; i++) {
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xf86ConfigLayout.screens[i + num_matches] = slp[i];
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}
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xf86ConfigLayout.screens[num_screens + num_matches - 1].screen =
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NULL;
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free(slp);
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}
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else {
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/* layout does not have any screens, not much to do */
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ptr->driver = matches[0];
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for (i = 1; matches[i]; i++) {
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if (matches[i] != matches[0]) {
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free(matches[i]);
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}
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}
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}
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}
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xf86Msg(X_DEFAULT, "Assigned the driver to the xf86ConfigLayout\n");
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return ptr;
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}
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