diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c | 46 |
1 files changed, 36 insertions, 10 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 db6b08f6d093..6a8a056424b8 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 @@ -30,6 +30,20 @@ #include "mod_freesync.h" #include "dc.h" +enum vsc_packet_revision { + vsc_packet_undefined = 0, + //01h = VSC SDP supports only 3D stereo. + vsc_packet_rev1 = 1, + //02h = 3D stereo + PSR. + vsc_packet_rev2 = 2, + //03h = 3D stereo + PSR2. + vsc_packet_rev3 = 3, + //04h = 3D stereo + PSR/PSR2 + Y-coordinate. + vsc_packet_rev4 = 4, + //05h = 3D stereo + PSR/PSR2 + Y-coordinate + Pixel Encoding/Colorimetry Format + vsc_packet_rev5 = 5, +}; + #define HDMI_INFOFRAME_TYPE_VENDOR 0x81 #define HF_VSIF_VERSION 1 @@ -116,35 +130,41 @@ enum ColorimetryYCCDP { }; void mod_build_vsc_infopacket(const struct dc_stream_state *stream, - struct dc_info_packet *info_packet) + struct dc_info_packet *info_packet, + bool *use_vsc_sdp_for_colorimetry) { - unsigned int vscPacketRevision = 0; + unsigned int vsc_packet_revision = vsc_packet_undefined; unsigned int i; unsigned int pixelEncoding = 0; unsigned int colorimetryFormat = 0; bool stereo3dSupport = false; + /* Initialize first, later if infopacket is valid determine if VSC SDP + * should be used to signal colorimetry format and pixel encoding. + */ + *use_vsc_sdp_for_colorimetry = false; + if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE) { - vscPacketRevision = 1; + vsc_packet_revision = vsc_packet_rev1; stereo3dSupport = true; } /*VSC packet set to 2 when DP revision >= 1.2*/ if (stream->psr_version != 0) - vscPacketRevision = 2; + vsc_packet_revision = vsc_packet_rev2; /* Update to revision 5 for extended colorimetry support for DPCD 1.4+ */ if (stream->link->dpcd_caps.dpcd_rev.raw >= 0x14 && stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED) - vscPacketRevision = 5; + vsc_packet_revision = vsc_packet_rev5; /* VSC packet not needed based on the features * supported by this DP display */ - if (vscPacketRevision == 0) + if (vsc_packet_revision == vsc_packet_undefined) return; - if (vscPacketRevision == 0x2) { + if (vsc_packet_revision == vsc_packet_rev2) { /* Secondary-data Packet ID = 0*/ info_packet->hb0 = 0x00; /* 07h - Packet Type Value indicating Video @@ -166,7 +186,7 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, info_packet->valid = true; } - if (vscPacketRevision == 0x1) { + if (vsc_packet_revision == vsc_packet_rev1) { info_packet->hb0 = 0x00; // Secondary-data Packet ID = 0 info_packet->hb1 = 0x07; // 07h = Packet Type Value indicating Video Stream Configuration packet @@ -237,7 +257,7 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, * the Pixel Encoding/Colorimetry Format and that a Sink device must ignore MISC1, bit 7, and * MISC0, bits 7:1 (MISC1, bit 7. and MISC0, bits 7:1 become "don't care").) */ - if (vscPacketRevision == 0x5) { + if (vsc_packet_revision == vsc_packet_rev5) { /* Secondary-data Packet ID = 0 */ info_packet->hb0 = 0x00; /* 07h - Packet Type Value indicating Video Stream Configuration packet */ @@ -249,6 +269,13 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, info_packet->valid = true; + /* If we are using VSC SDP revision 05h, use this to signal for + * colorimetry format and pixel encoding. HW should later be + * programmed to set MSA MISC1 bit 6 to indicate ignore + * colorimetry format and pixel encoding in the MSA. + */ + *use_vsc_sdp_for_colorimetry = true; + /* Set VSC SDP fields for pixel encoding and colorimetry format from DP 1.3 specs * Data Bytes DB 18~16 * Bits 3:0 (Colorimetry Format) | Bits 7:4 (Pixel Encoding) @@ -393,7 +420,6 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, */ info_packet->sb[18] = 0; } - } /** |