From fbb5d0353c62d10c3699ec844d2d015a762952d7 Mon Sep 17 00:00:00 2001
From: Uma Shankar <uma.shankar@intel.com>
Date: Thu, 16 May 2019 19:40:06 +0530
Subject: drm: Add HDR source metadata property
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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
---
include/uapi/drm/drm_mode.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
(limited to 'include/uapi/drm')
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 83cd1636b9be..997a7e05c0c6 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -630,6 +630,29 @@ struct drm_color_lut {
__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
--
cgit v1.2.3