On Thu, 16 Feb 2012 04:46:39 -0800 (PST) Jakob Bornecrantz jakob@vmware.com wrote:
----- Original Message -----
Many of us really want (and need) a way to set the whole display configuration atomically, as well as test a global config.
In talking with Rob and Alex here at ELC a bit, I think this may be enough:
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h index 2a2acda..2864b02 100644 --- a/include/drm/drm_mode.h +++ b/include/drm/drm_mode.h @@ -157,6 +157,26 @@ struct drm_mode_get_plane_res { __u32 count_planes; };
+#define DRM_SET_CONFIG_TEST (1<<0) /* don't change the config, just test it for validity */ + +struct drm_mode_set_config {
- __u64 crtcs;
- __u64 crtc_fbs;
- __u64 crtc_xpos; /* array of x coords for crtcs */
- __u64 crtc_ypos; /* array of y coords for crtcs */
- __u32 count_crtcs;
- __u64 plane_sets; /* array of set_plane structs */
- __u32 count_planes;
- __u64 connectors;
- __u64 connector_modes;
- __u32 count_connectors;
How do you do mirroring? Why not just send down a array of drm_mode_crtc?
You can pass the same fb for multiple crtcs if you want to mirror. Using an array of mode_crtcs would fix one problem though; the mode array should be tied to the crtc, not the connector (i.e. you can't set two different modes on two different connectors with only a single crtc).
Any comments? Do we also need to set gamma or other properties as part of this? What about cursors?
I would like to see properties added as well.
That's +3 now I think. :) I'll try to figure out a way to add that...
Jesse