drm/bridge/mhl: add MHL3 infoframe related definitions

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@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-20-git-send-email-a.hajda@samsung.com

diff --git a/include/drm/bridge/mhl.h b/include/drm/bridge/mhl.h
index e8d194da4b2c94ca47fd82286db773638d96040f..fbdfc8d7f3c7a9083a5dd39aa1185039fd922452 100644 (file)
--- a/include/drm/bridge/mhl.h
+++ b/include/drm/bridge/mhl.h
@@ -341,4 +341,36 @@ 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__ */