MHL3 protocol uses vendor specific infoframes to transmit additional
information to the sink. This patch adds definitions of structures and
constants used to create such frames.
Signed-off-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
---
include/drm/bridge/mhl.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/include/drm/bridge/mhl.h b/include/drm/bridge/mhl.h
index 71d922f..8dfa2cd 100644
--- a/include/drm/bridge/mhl.h
+++ b/include/drm/bridge/mhl.h
@@ -339,4 +339,36 @@ struct mhl_burst_audio_descr {
u8 short_desc[9];
} __packed;
+/*
+ * MHL3 infoframe related definitions
+ */
+
+#define MHL3_IEEE_OUI 0x7ca61d
+#define MHL3_INFOFRAME_SIZE 15
+
+enum mhl3_video_format {
+ mhl3_video_format_none,
+ mhl3_video_format_3d,
+ mhl3_video_format_multi_view,
+ mhl3_video_format_dual_3d
+};
+
+enum mhl3_3d_format_type {
+ mhl3_3d_format_type_fs, /* frame sequential */
+ mhl3_3d_format_type_tb, /* top-bottom */
+ mhl3_3d_format_type_lr, /* left-right */
+ mhl3_3d_format_type_fs_tb, /* frame sequential, top-bottom */
+ mhl3_3d_format_type_fs_lr, /* frame sequential, left-right */
+ mhl3_3d_format_type_tb_lr /* top-bottom, left-right */
+};
+
+struct mhl3_infoframe {
+ unsigned char version;
+ enum mhl3_video_format video_format;
+ enum mhl3_3d_format_type format_type;
+ bool sep_audio;
+ int hev_format;
+ int av_delay;
+};
+
#endif /* __MHL_H__ */
--
2.7.4
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