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drm/amd/display: Stereo 3D support in VSC 

[Why]
Need to add strere 3D information in VSC

[How]
Update mod_build_vsc_infopacket with stereo info

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Bernstein 2018-09-10 10:11:01 -04:00 committed by Alex Deucher
parent 2806aca66d
commit 99267ce71a
1 changed files with 54 additions and 4 deletions
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58
drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
View File

@ -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