This patch adds a blob property to get HDR metadata
information from userspace. This will be send as part
of AVI Infoframe to panel.
It also implements get() and set() functions for HDR output
metadata property.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 modified the metadata structure elements
as per Ville's POC changes.
v3: No Change
v4: Addressed Shashank's review comments
v5: Rebase.
v6: Addressed Brian Starkey's review comments, defined
new structure with header for dynamic metadata scalability.
Merge get/set property functions for metadata in this patch.
v7: Addressed Jonas Karlman review comments and defined separate
structure for infoframe to better align with CTA 861.G spec. Added
Shashank's RB.
v8: Addressed Ville's review comments. Moved sink metadata structure
out of uapi headers as suggested by Jonas Karlman.
v9: Rebase and addressed Jonas Karlman review comments.
v10: Addressed Ville's review comments, dropped the metdata_changed
state variable as its not needed anymore.
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1558015817-12025-2-git-send-email-uma.shankar@intel.com
{
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, file_priv, val);
*/
if (state->link_status != DRM_LINK_STATUS_GOOD)
state->link_status = val;
+ } else if (property == config->hdr_output_metadata_property) {
+ ret = drm_atomic_replace_property_blob_from_id(dev,
+ &state->hdr_output_metadata,
+ val,
+ sizeof(struct hdr_output_metadata), -1,
+ &replaced);
+ return ret;
} else if (property == config->aspect_ratio_property) {
state->picture_aspect_ratio = val;
} else if (property == config->content_type_property) {
*val = state->colorspace;
} else if (property == connector->scaling_mode_property) {
*val = state->scaling_mode;
+ } else if (property == config->hdr_output_metadata_property) {
+ *val = state->hdr_output_metadata ?
+ state->hdr_output_metadata->base.id : 0;
} else if (property == connector->content_protection_property) {
*val = state->content_protection;
} else if (property == config->writeback_fb_id_property) {
return -ENOMEM;
dev->mode_config.non_desktop_property = prop;
+ prop = drm_property_create(dev, DRM_MODE_PROP_BLOB,
+ "HDR_OUTPUT_METADATA", 0);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.hdr_output_metadata_property = prop;
+
return 0;
}
* and the connector bpc limitations obtained from edid.
*/
u8 max_bpc;
+
+ /**
+ * @hdr_output_metadata:
+ * DRM blob property for HDR output metadata
+ */
+ struct drm_property_blob *hdr_output_metadata;
};
/**
* &drm_mode_config.connector_free_work.
*/
struct llist_node free_node;
+
+ /* HDR metdata */
+ struct hdr_output_metadata hdr_output_metadata;
+ struct hdr_sink_metadata hdr_sink_metadata;
};
#define obj_to_connector(x) container_of(x, struct drm_connector, base)
*/
struct drm_property *writeback_out_fence_ptr_property;
+ /**
+ * hdr_output_metadata_property: Connector property containing hdr
+ * metatda. This will be provided by userspace compositors based
+ * on HDR content
+ */
+ struct drm_property *hdr_output_metadata_property;
+
/* dumb ioctl parameters */
uint32_t preferred_depth, prefer_shadow;
HDMI_CONTENT_TYPE_GAME,
};
+enum hdmi_metadata_type {
+ HDMI_STATIC_METADATA_TYPE1 = 1,
+};
+
+enum hdmi_eotf {
+ HDMI_EOTF_TRADITIONAL_GAMMA_SDR,
+ HDMI_EOTF_TRADITIONAL_GAMMA_HDR,
+ HDMI_EOTF_SMPTE_ST2084,
+};
+
struct hdmi_avi_infoframe {
enum hdmi_infoframe_type type;
unsigned char version;
unsigned int s3d_ext_data;
};
+/* HDR Metadata as per 861.G spec */
+struct hdr_static_metadata {
+ __u8 eotf;
+ __u8 metadata_type;
+ __u16 max_cll;
+ __u16 max_fall;
+ __u16 min_cll;
+};
+
+struct hdr_sink_metadata {
+ __u32 metadata_type;
+ union {
+ struct hdr_static_metadata hdmi_type1;
+ };
+};
+
int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
void *buffer, size_t size);
__u16 reserved;
};
+/* HDR Metadata Infoframe as per 861.G spec */
+struct hdr_metadata_infoframe {
+ __u8 eotf;
+ __u8 metadata_type;
+ struct {
+ __u16 x, y;
+ } display_primaries[3];
+ struct {
+ __u16 x, y;
+ } white_point;
+ __u16 max_display_mastering_luminance;
+ __u16 min_display_mastering_luminance;
+ __u16 max_cll;
+ __u16 max_fall;
+};
+
+struct hdr_output_metadata {
+ __u32 metadata_type;
+ union {
+ struct hdr_metadata_infoframe hdmi_metadata_type1;
+ };
+};
+
#define DRM_MODE_PAGE_FLIP_EVENT 0x01
#define DRM_MODE_PAGE_FLIP_ASYNC 0x02
#define DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE 0x4