Re: [v2 07/14] drm: Implement HDR source metadata set and get property handling

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Regards

Shashank


On 12/12/2018 2:08 AM, Uma Shankar wrote:
HDR source metadata set and get property implemented in this
patch.
Again, HDR output metadata ? How about re-arranging the line like "This patch implements get() and set() functions for HDR output metadata property" just to make it more clear ?
The blob data is received from userspace and saved in
connector state, the same is returned as blob in get property
call to userspace.

v2: Rebase and added Ville's POC changes

Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
  drivers/gpu/drm/drm_atomic.c      |  2 ++
  drivers/gpu/drm/drm_atomic_uapi.c | 13 +++++++++++++
  2 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 5eb4013..4e71c6b 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -881,6 +881,8 @@ static void drm_atomic_connector_print_state(struct drm_printer *p,
drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name);
  	drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)");
+	drm_printf(p, "\thdr_metadata_changed=%d\n",
+					state->hdr_metadata_changed);
Alignment
if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
  		if (state->writeback_job && state->writeback_job->fb)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index c408898..b721b12 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -686,6 +686,8 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
  {
  	struct drm_device *dev = connector->dev;
  	struct drm_mode_config *config = &dev->mode_config;
+	bool replaced = false;
+	int ret;
if (property == config->prop_crtc_id) {
  		struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val);
@@ -734,6 +736,14 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
  		 */
  		if (state->link_status != DRM_LINK_STATUS_GOOD)
  			state->link_status = val;
+	} else if (property == config->hdr_source_metadata_property) {
+		ret = drm_atomic_replace_property_blob_from_id(dev,
+				&state->hdr_source_metadata_blob_ptr,
+				val,
+				-1, sizeof(struct hdr_static_metadata),
+				&replaced);
Alignment, but I know it might be difficult to contain the params within 80 chars.
+		state->hdr_metadata_changed |= replaced;
+		return ret;
  	} else if (property == config->aspect_ratio_property) {
  		state->picture_aspect_ratio = val;
  	} else if (property == config->content_type_property) {
@@ -816,6 +826,9 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
  		*val = state->content_type;
  	} else if (property == connector->scaling_mode_property) {
  		*val = state->scaling_mode;
+	} else if (property == config->hdr_source_metadata_property) {
+		*val = (state->hdr_source_metadata_blob_ptr) ?
+			state->hdr_source_metadata_blob_ptr->base.id : 0;
  	} else if (property == connector->content_protection_property) {
  		*val = state->content_protection;
  	} else if (property == config->writeback_fb_id_property) {
- Shashank
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