From: Stanislav Lisovskiy stanislav.lisovskiy@intel.com
Added encoding of drm content_type property from drm_connector_state within AVI infoframe in order to properly handle external HDMI TV content-type setting.
This requires also manipulationg ITC bit, as stated in HDMI spec.
v2: * Moved helper function which attaches content type property to the drm core, as was suggested. Removed redundant connector state initialization.
v3: * Removed caps in drm_content_type_enum_list. After some discussion it turned out that HDMI Spec 1.4 was wrongly assuming that IT Content(itc) bit doesn't affect Content type states, however itc bit needs to be manupulated as well. In order to not expose additional property for itc, for sake of simplicity it was decided to bind those together in same "content type" property.
v4: * Added it_content checking in intel_digital_connector_atomic_check. Fixed documentation for new content type enum.
v5: * Moved patch revision's description to commit messages.
v6: * Minor naming fix for the content type enumeration string.
v7: * Fix parameter name for documentation and parameter alignment in order not to get warning. Added Content Type description to new HDMI connector properties section.
v8: * Thrown away unneeded numbers from HDMI content-type property description. Switch to strings desription instead of plain definitions.
v9: * Moved away hdmi specific content-type enum from drm_connector_state. Content type property should probably not be bound to any specific connector interface in drm_connector_state. Same probably should be done to hdmi_picture_aspect_ration enum which is also contained in drm_connector_state. Added special helper function to get derive hdmi specific relevant infoframe fields.
Signed-off-by: Stanislav Lisovskiy stanislav.lisovskiy@intel.com --- drivers/gpu/drm/i915/intel_atomic.c | 1 + drivers/gpu/drm/i915/intel_hdmi.c | 24 ++++++++++++++++++------ 2 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c index 40285d1b91b7..61ddb5871d8a 100644 --- a/drivers/gpu/drm/i915/intel_atomic.c +++ b/drivers/gpu/drm/i915/intel_atomic.c @@ -124,6 +124,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, if (new_conn_state->force_audio != old_conn_state->force_audio || new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb || new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || + new_conn_state->base.content_type != old_conn_state->base.content_type || new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode) crtc_state->mode_changed = true;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index ee929f31f7db..1080254a578b 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -460,8 +460,10 @@ static void intel_write_infoframe(struct drm_encoder *encoder, intel_dig_port->write_infoframe(encoder, crtc_state, frame->any.type, buffer, len); }
+ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder, - const struct intel_crtc_state *crtc_state) + const struct intel_crtc_state *crtc_state, + const struct drm_connector_state *conn_state) { struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder); const struct drm_display_mode *adjusted_mode = @@ -469,6 +471,8 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder, struct drm_connector *connector = &intel_hdmi->attached_connector->base; bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported; union hdmi_infoframe frame; + enum hdmi_content_type content_type; + bool itc; int ret;
ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, @@ -491,6 +495,13 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder, intel_hdmi->rgb_quant_range_selectable, is_hdmi2_sink);
+ /* convert generic content type property to HDMI specific */ + itc = drm_hdmi_get_itc_bit_from_property(conn_state->content_type); + content_type = drm_hdmi_get_content_type_from_property(conn_state->content_type); + + frame.avi.itc = itc; + frame.avi.content_type = content_type; + /* TODO: handle pixel repetition for YCBCR420 outputs */ intel_write_infoframe(encoder, crtc_state, &frame); } @@ -586,7 +597,7 @@ static void g4x_set_infoframes(struct drm_encoder *encoder, I915_WRITE(reg, val); POSTING_READ(reg);
- intel_hdmi_set_avi_infoframe(encoder, crtc_state); + intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state); intel_hdmi_set_spd_infoframe(encoder, crtc_state); intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state); } @@ -727,7 +738,7 @@ static void ibx_set_infoframes(struct drm_encoder *encoder, I915_WRITE(reg, val); POSTING_READ(reg);
- intel_hdmi_set_avi_infoframe(encoder, crtc_state); + intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state); intel_hdmi_set_spd_infoframe(encoder, crtc_state); intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state); } @@ -770,7 +781,7 @@ static void cpt_set_infoframes(struct drm_encoder *encoder, I915_WRITE(reg, val); POSTING_READ(reg);
- intel_hdmi_set_avi_infoframe(encoder, crtc_state); + intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state); intel_hdmi_set_spd_infoframe(encoder, crtc_state); intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state); } @@ -823,7 +834,7 @@ static void vlv_set_infoframes(struct drm_encoder *encoder, I915_WRITE(reg, val); POSTING_READ(reg);
- intel_hdmi_set_avi_infoframe(encoder, crtc_state); + intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state); intel_hdmi_set_spd_infoframe(encoder, crtc_state); intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state); } @@ -856,7 +867,7 @@ static void hsw_set_infoframes(struct drm_encoder *encoder, I915_WRITE(reg, val); POSTING_READ(reg);
- intel_hdmi_set_avi_infoframe(encoder, crtc_state); + intel_hdmi_set_avi_infoframe(encoder, crtc_state, conn_state); intel_hdmi_set_spd_infoframe(encoder, crtc_state); intel_hdmi_set_hdmi_infoframe(encoder, crtc_state, conn_state); } @@ -2065,6 +2076,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c intel_attach_force_audio_property(connector); intel_attach_broadcast_rgb_property(connector); intel_attach_aspect_ratio_property(connector); + drm_connector_attach_content_type_property(connector); connector->state->picture_aspect_ratio = HDMI_PICTURE_ASPECT_NONE; }