From: Eric Bernstein <[email protected]> [Why] Need to add strere 3D information in VSC
[How] Update mod_build_vsc_infopacket with stereo info Change-Id: Ie99f9f3259e10dcf37a92192cd08e2a65299cf9d Signed-off-by: Eric Bernstein <[email protected]> Reviewed-by: Charlene Liu <[email protected]> Acked-by: Bhawanpreet Lakha <[email protected]> --- .../amd/display/modules/info_packet/info_packet.c | 58 ++++++++++++++++++++-- 1 file changed, 54 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c index 52378fc69079..ff8bfb9b43b0 100644 --- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c +++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c @@ -48,9 +48,12 @@ static void mod_build_vsc_infopacket(const struct dc_stream_state *stream, unsigned int i; unsigned int pixelEncoding = 0; unsigned int colorimetryFormat = 0; + bool stereo3dSupport = false; - if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE) + if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE) { vscPacketRevision = 1; + stereo3dSupport = true; + } /*VSC packet set to 2 when DP revision >= 1.2*/ if (stream->psr_version != 0) @@ -94,12 +97,59 @@ static void mod_build_vsc_infopacket(const struct dc_stream_state *stream, info_packet->hb2 = 0x01; // 01h = Revision number. VSC SDP supporting 3D stereo only info_packet->hb3 = 0x01; // 01h = VSC SDP supporting 3D stereo only (HB2 = 01h). - if (stream->timing.timing_3d_format == TIMING_3D_FORMAT_INBAND_FA) - info_packet->sb[0] = 0x1; - info_packet->valid = true; } + if (stereo3dSupport) { + /* ==============================================================================================================| + * A. STEREO 3D + * ==============================================================================================================| + * VSC Payload (1 byte) From DP1.2 spec + * + * Bits 3:0 (Stereo Interface Method Code) | Bits 7:4 (Stereo Interface Method Specific Parameter) + * ----------------------------------------------------------------------------------------------------- + * 0 = Non Stereo Video | Must be set to 0x0 + * ----------------------------------------------------------------------------------------------------- + * 1 = Frame/Field Sequential | 0x0: L + R view indication based on MISC1 bit 2:1 + * | 0x1: Right when Stereo Signal = 1 + * | 0x2: Left when Stereo Signal = 1 + * | (others reserved) + * ----------------------------------------------------------------------------------------------------- + * 2 = Stacked Frame | 0x0: Left view is on top and right view on bottom + * | (others reserved) + * ----------------------------------------------------------------------------------------------------- + * 3 = Pixel Interleaved | 0x0: horiz interleaved, right view pixels on even lines + * | 0x1: horiz interleaved, right view pixels on odd lines + * | 0x2: checker board, start with left view pixel + * | 0x3: vertical interleaved, start with left view pixels + * | 0x4: vertical interleaved, start with right view pixels + * | (others reserved) + * ----------------------------------------------------------------------------------------------------- + * 4 = Side-by-side | 0x0: left half represents left eye view + * | 0x1: left half represents right eye view + */ + switch (stream->timing.timing_3d_format) { + case TIMING_3D_FORMAT_HW_FRAME_PACKING: + case TIMING_3D_FORMAT_SW_FRAME_PACKING: + case TIMING_3D_FORMAT_TOP_AND_BOTTOM: + case TIMING_3D_FORMAT_TB_SW_PACKED: + info_packet->sb[0] = 0x02; // Stacked Frame, Left view is on top and right view on bottom. + break; + case TIMING_3D_FORMAT_DP_HDMI_INBAND_FA: + case TIMING_3D_FORMAT_INBAND_FA: + info_packet->sb[0] = 0x01; // Frame/Field Sequential, L + R view indication based on MISC1 bit 2:1 + break; + case TIMING_3D_FORMAT_SIDE_BY_SIDE: + case TIMING_3D_FORMAT_SBS_SW_PACKED: + info_packet->sb[0] = 0x04; // Side-by-side + break; + default: + info_packet->sb[0] = 0x00; // No Stereo Video, Shall be cleared to 0x0. + break; + } + + } + /* 05h = VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/Colorimetry Format indication. * Added in DP1.3, a DP Source device is allowed to indicate the pixel encoding/colorimetry * format to the DP Sink device with VSC SDP only when the DP Sink device supports it -- 2.14.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
