summaryrefslogtreecommitdiff
path: root/include/linux/hdmi.h
diff options
context:
space:
mode:
authorUma Shankar <uma.shankar@intel.com>2019-05-16 17:10:06 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2019-05-22 22:46:35 +0300
commitfbb5d0353c62d10c3699ec844d2d015a762952d7 (patch)
treeeec04483f913da4eba608872caac6d0deca99f5e /include/linux/hdmi.h
parentb681af0bc1cc520c35f2ef109aa6a2db46d0ecb5 (diff)
downloadlinux-fbb5d0353c62d10c3699ec844d2d015a762952d7.tar.xz
drm: Add HDR source metadata property
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
Diffstat (limited to 'include/linux/hdmi.h')
-rw-r--r--include/linux/hdmi.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 927ad6451105..6780476dcbff 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -152,6 +152,16 @@ enum hdmi_content_type {
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;
@@ -320,6 +330,22 @@ struct hdmi_vendor_infoframe {
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);