video/hdmi: Introduce a generic hdmi_infoframe union
And a way to pack hdmi_infoframe generically.
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 3b58944..0f3f82e 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -23,6 +23,12 @@
#define HDMI_SPD_INFOFRAME_SIZE 25
#define HDMI_AUDIO_INFOFRAME_SIZE 10
+struct hdmi_any_infoframe {
+ enum hdmi_infoframe_type type;
+ unsigned char version;
+ unsigned char length;
+};
+
enum hdmi_colorspace {
HDMI_COLORSPACE_RGB,
HDMI_COLORSPACE_YUV422,
@@ -228,4 +234,15 @@
ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_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_audio_infoframe audio;
+};
+
+ssize_t
+hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
+
#endif /* _DRM_HDMI_H */