From: Damien Lespiau damien.lespiau@intel.com
The "select 3D mode" property can be connected to connectors to signal user space that 3D framebuffers can be scanned out to the said connector.
Signed-off-by: Damien Lespiau damien.lespiau@intel.com --- drivers/gpu/drm/drm_crtc.c | 32 ++++++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 4 ++++ 2 files changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 6fbfc24..dcd6d81 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -841,6 +841,38 @@ int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, } EXPORT_SYMBOL(drm_mode_create_tv_properties);
+static const struct drm_prop_enum_list s3d_modes_list[] = +{ + { 0, "None" }, + { DRM_MODE_FLAG_3D_TOP_BOTTOM, "Top bottom" }, + { DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF, "Side by side (half)" }, + { DRM_MODE_FLAG_3D_FRAME_PACKING, "Frame packing" } +}; + +/** + * drm_mode_create_3d_property - create stereo 3D properties + * @dev: DRM device + * + * Called by a driver the first time it's needed, must be attached to modes + * that supports stereo 3D formats. + */ +int drm_mode_create_3d_property(struct drm_device *dev) +{ + struct drm_property *s3d_selector; + + if (dev->mode_config.s3d_select_mode_property) + return 0; + + s3d_selector = drm_property_create_enum(dev, 0, + "select 3D mode", + s3d_modes_list, + ARRAY_SIZE(s3d_modes_list)); + dev->mode_config.s3d_select_mode_property = s3d_selector; + + return 0; +} +EXPORT_SYMBOL(drm_mode_create_3d_property); + /** * drm_mode_create_scaling_mode_property - create scaling mode property * @dev: DRM device diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index bfacf0d..5a6e024 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -802,6 +802,9 @@ struct drm_mode_config { struct drm_property *tv_saturation_property; struct drm_property *tv_hue_property;
+ /* Stereo 3D properties */ + struct drm_property *s3d_select_mode_property; + /* Optional properties */ struct drm_property *scaling_mode_property; struct drm_property *dithering_mode_property; @@ -950,6 +953,7 @@ extern int drm_property_add_enum(struct drm_property *property, int index, extern int drm_mode_create_dvi_i_properties(struct drm_device *dev); extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats, char *formats[]); +extern int drm_mode_create_3d_property(struct drm_device *dev); extern int drm_mode_create_scaling_mode_property(struct drm_device *dev); extern int drm_mode_create_dithering_property(struct drm_device *dev); extern int drm_mode_create_dirty_info_property(struct drm_device *dev);