The OutputClass section provides a way to match output devices to a set of given attributes and configure them. For now, only matching by kernel driver name is supported. This can be used to determine what DDX module to load for non-PCI output devices. DDX modules can ship an xorg.conf.d snippet (e.g. in /usr/share/X11/xorg.conf.d) that looks like this: Section "OutputClass" Identifer "NVIDIA Tegra open-source driver" MatchDriver "tegra" Driver "opentegra" EndSection This will cause any device that's driven by the kernel driver named "tegra" to use the "opentegra" DDX module. See the OUTPUTCLASS section in xorg.conf(5) for more details. Reviewed-by: Aaron Plattner <aplattner@nvidia.com> Tested-By: Aaron Plattner <aplattner@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Tested-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Keith Packard <keithp@keithp.com>
168 lines
4.7 KiB
C
168 lines
4.7 KiB
C
/*
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* Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* 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
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in 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,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* 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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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "os.h"
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#include "xf86Parser.h"
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#include "xf86tokens.h"
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#include "Configint.h"
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static
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xf86ConfigSymTabRec OutputClassTab[] = {
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{ENDSECTION, "endsection"},
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{IDENTIFIER, "identifier"},
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{DRIVER, "driver"},
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{MATCH_DRIVER, "matchdriver"},
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{-1, ""},
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};
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#define CLEANUP xf86freeOutputClassList
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#define TOKEN_SEP "|"
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static void
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add_group_entry(struct xorg_list *head, char **values)
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{
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xf86MatchGroup *group;
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group = malloc(sizeof(*group));
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if (group) {
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group->values = values;
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xorg_list_add(&group->entry, head);
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}
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}
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XF86ConfOutputClassPtr
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xf86parseOutputClassSection(void)
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{
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int has_ident = FALSE;
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int token;
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parsePrologue(XF86ConfOutputClassPtr, XF86ConfOutputClassRec)
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/* Initialize MatchGroup lists */
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xorg_list_init(&ptr->match_driver);
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while ((token = xf86getToken(OutputClassTab)) != ENDSECTION) {
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switch (token) {
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case COMMENT:
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ptr->comment = xf86addComment(ptr->comment, xf86_lex_val.str);
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break;
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case IDENTIFIER:
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if (xf86getSubToken(&(ptr->comment)) != STRING)
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Error(QUOTE_MSG, "Identifier");
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if (has_ident == TRUE)
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Error(MULTIPLE_MSG, "Identifier");
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ptr->identifier = xf86_lex_val.str;
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has_ident = TRUE;
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break;
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case DRIVER:
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if (xf86getSubToken(&(ptr->comment)) != STRING)
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Error(QUOTE_MSG, "Driver");
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else
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ptr->driver = xf86_lex_val.str;
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break;
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case MATCH_DRIVER:
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if (xf86getSubToken(&(ptr->comment)) != STRING)
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Error(QUOTE_MSG, "MatchDriver");
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add_group_entry(&ptr->match_driver,
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xstrtokenize(xf86_lex_val.str, TOKEN_SEP));
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free(xf86_lex_val.str);
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break;
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case EOF_TOKEN:
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Error(UNEXPECTED_EOF_MSG);
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break;
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default:
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Error(INVALID_KEYWORD_MSG, xf86tokenString());
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break;
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}
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}
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if (!has_ident)
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Error(NO_IDENT_MSG);
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#ifdef DEBUG
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printf("OutputClass section parsed\n");
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#endif
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return ptr;
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}
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void
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xf86printOutputClassSection(FILE * cf, XF86ConfOutputClassPtr ptr)
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{
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const xf86MatchGroup *group;
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char *const *cur;
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while (ptr) {
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fprintf(cf, "Section \"OutputClass\"\n");
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if (ptr->comment)
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fprintf(cf, "%s", ptr->comment);
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if (ptr->identifier)
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fprintf(cf, "\tIdentifier \"%s\"\n", ptr->identifier);
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if (ptr->driver)
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fprintf(cf, "\tDriver \"%s\"\n", ptr->driver);
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xorg_list_for_each_entry(group, &ptr->match_driver, entry) {
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fprintf(cf, "\tMatchDriver \"");
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for (cur = group->values; *cur; cur++)
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fprintf(cf, "%s%s", cur == group->values ? "" : TOKEN_SEP,
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*cur);
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fprintf(cf, "\"\n");
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}
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fprintf(cf, "EndSection\n\n");
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ptr = ptr->list.next;
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}
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}
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void
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xf86freeOutputClassList(XF86ConfOutputClassPtr ptr)
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{
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XF86ConfOutputClassPtr prev;
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while (ptr) {
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xf86MatchGroup *group, *next;
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char **list;
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TestFree(ptr->identifier);
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TestFree(ptr->comment);
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TestFree(ptr->driver);
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xorg_list_for_each_entry_safe(group, next, &ptr->match_driver, entry) {
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xorg_list_del(&group->entry);
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for (list = group->values; *list; list++)
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free(*list);
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free(group);
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}
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prev = ptr;
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ptr = ptr->list.next;
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free(prev);
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}
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}
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