In this patch readout for AVI infoframes enclosed in GMP DIP is implemented.
Signed-off-by: Swati Sharma <[email protected]> Signed-off-by: Ankit Nautiyal <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp.c | 74 ++++++++++++++++++++++++- 1 file changed, 72 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index d96e69dd2197..4821c96991f2 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5738,6 +5738,44 @@ intel_dp_hdr_metadata_infoframe_sdp_unpack(struct hdmi_drm_infoframe *drm_infofr return ret; } +static int +intel_dp_avi_infoframe_sdp_unpack(union hdmi_infoframe *frame, + const void *buffer, size_t size) +{ + int ret; + + const struct dp_sdp *sdp = buffer; + + if (size < sizeof(struct dp_sdp)) + return -EINVAL; + + if (sdp->sdp_header.HB0 != 0) + return -EINVAL; + + if (sdp->sdp_header.HB1 != HDMI_INFOFRAME_TYPE_AVI) + return -EINVAL; + + if (sdp->sdp_header.HB2 != 0x1D) + return -EINVAL; + + if ((sdp->sdp_header.HB3 & 0x3) != 0) + return -EINVAL; + + if (((sdp->sdp_header.HB3 >> 2) & 0x3f) != 0x13) + return -EINVAL; + + if (sdp->db[0] != 2) + return -EINVAL; + + if (sdp->db[1] != HDMI_AVI_INFOFRAME_SIZE) + return -EINVAL; + + ret = hdmi_infoframe_unpack(frame, &sdp->db[2], + HDMI_DRM_INFOFRAME_SIZE); + + return ret; +} + static void intel_read_dp_vsc_sdp(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, struct drm_dp_vsc_sdp *vsc) @@ -5790,10 +5828,37 @@ static void intel_read_dp_hdr_metadata_infoframe_sdp(struct intel_encoder *encod "Failed to unpack DP HDR Metadata Infoframe SDP\n"); } +static void intel_read_dp_avi_infoframe_sdp(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + union hdmi_infoframe *frame) +{ + struct intel_digital_port *dig_port = enc_to_dig_port(encoder); + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + unsigned int type = HDMI_PACKET_TYPE_GAMUT_METADATA; + struct dp_sdp sdp = {}; + int ret; + + if ((crtc_state->infoframes.enable & + intel_hdmi_infoframe_enable(type)) == 0) + return; + + dig_port->read_infoframe(encoder, crtc_state, type, &sdp, + sizeof(sdp)); + + ret = intel_dp_avi_infoframe_sdp_unpack(frame, &sdp, + sizeof(sdp)); + + if (ret) + drm_dbg_kms(&dev_priv->drm, + "Failed to unpack DP AVI Infoframe SDP\n"); +} + void intel_read_dp_sdp(struct intel_encoder *encoder, struct intel_crtc_state *crtc_state, unsigned int type) { + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + if (encoder->type != INTEL_OUTPUT_DDI) return; @@ -5803,8 +5868,13 @@ void intel_read_dp_sdp(struct intel_encoder *encoder, &crtc_state->infoframes.vsc); break; case HDMI_PACKET_TYPE_GAMUT_METADATA: - intel_read_dp_hdr_metadata_infoframe_sdp(encoder, crtc_state, - &crtc_state->infoframes.drm.drm); + if (intel_dp_is_hdmi_2_1_sink(intel_dp)) { + intel_read_dp_avi_infoframe_sdp(encoder, crtc_state, + &crtc_state->infoframes.avi); + } else { + intel_read_dp_hdr_metadata_infoframe_sdp(encoder, crtc_state, + &crtc_state->infoframes.drm.drm); + } break; default: MISSING_CASE(type); -- 2.25.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
