xfree86: Introduce OutputClass configuration

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>

1 files changed, 9 insertions, 0 deletions

diff --git a/hw/xfree86/parser/xf86Parser.h b/hw/xfree86/parser/xf86Parser.h
index c95423a1f..3fa5b716d 100644
--- a/hw/xfree86/parser/xf86Parser.h
+++ b/hw/xfree86/parser/xf86Parser.h
@@ -327,6 +327,14 @@ typedef struct {
     char *comment;
 } XF86ConfInputClassRec, *XF86ConfInputClassPtr;
 
+typedef struct {
+    GenericListRec list;
+    char *identifier;
+    char *driver;
+    struct xorg_list match_driver;
+    char *comment;
+} XF86ConfOutputClassRec, *XF86ConfOutputClassPtr;
+
 /* Values for adj_where */
 #define CONF_ADJ_OBSOLETE	-1
 #define CONF_ADJ_ABSOLUTE	0
@@ -411,6 +419,7 @@ typedef struct {
     XF86ConfScreenPtr conf_screen_lst;
     XF86ConfInputPtr conf_input_lst;
     XF86ConfInputClassPtr conf_inputclass_lst;
+    XF86ConfOutputClassPtr conf_outputclass_lst;
     XF86ConfLayoutPtr conf_layout_lst;
     XF86ConfVendorPtr conf_vendor_lst;
     XF86ConfDRIPtr conf_dri;