video/hdmi: Introduce helpers for the HDMI vendor specific infoframe
Provide the same programming model than the other infoframe types.
The generic _pack() function can't handle those yet as we need to move
the vendor OUI in the generic hdmi_vendor_infoframe structure to know
which kind of vendor infoframe we are dealing with.
v2: Fix the value of Side-by-side (half), hmdi typo, pack 3D_Ext_Data
(Ville Syrjälä)
v3: Future proof the sending of 3D_Ext_Data (Ville Syrjälä), Fix
multi-lines comment style (Thierry Reding)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index b98340b..e733252 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -234,11 +234,37 @@
ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
void *buffer, size_t size);
+enum hdmi_3d_structure {
+ HDMI_3D_STRUCTURE_INVALID = -1,
+ HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
+ HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
+ HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
+ HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
+ HDMI_3D_STRUCTURE_L_DEPTH,
+ HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
+ HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
+ HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
+};
+
+struct hdmi_hdmi_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+ u8 vic;
+ enum hdmi_3d_structure s3d_struct;
+ unsigned int s3d_ext_data;
+};
+
+int hdmi_hdmi_infoframe_init(struct hdmi_hdmi_infoframe *frame);
+ssize_t hdmi_hdmi_infoframe_pack(struct hdmi_hdmi_infoframe *frame,
+ void *buffer, size_t size);
+
union hdmi_infoframe {
struct hdmi_any_infoframe any;
struct hdmi_avi_infoframe avi;
struct hdmi_spd_infoframe spd;
struct hdmi_vendor_infoframe vendor;
+ struct hdmi_hdmi_infoframe hdmi;
struct hdmi_audio_infoframe audio;
};