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From: Uma Shankar <uma.shankar@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [v7 07/10] drm/i915/display: Implement DRM infoframe read for LSPCON
Date: Tue,  6 Oct 2020 18:36:51 +0530	[thread overview]
Message-ID: <20201006130654.331-8-uma.shankar@intel.com> (raw)
In-Reply-To: <20201006130654.331-1-uma.shankar@intel.com>

Implement Read back of HDR metadata infoframes i.e Dynamic Range
and Mastering Infoframe for LSPCON devices.

v2: Added proper bitmask of enabled infoframes as per Ville's
recommendation.

v3: Dropped a redundant wrapper as per Ville's comment.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hdmi.c   | 7 +++----
 drivers/gpu/drm/i915/display/intel_lspcon.c | 7 ++++++-
 drivers/gpu/drm/i915/display/intel_lspcon.h | 4 ++++
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index cc0eb585c654..50bbe3bdb4c7 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -555,10 +555,9 @@ void hsw_write_infoframe(struct intel_encoder *encoder,
 	intel_de_posting_read(dev_priv, ctl_reg);
 }
 
-static void hsw_read_infoframe(struct intel_encoder *encoder,
-			       const struct intel_crtc_state *crtc_state,
-			       unsigned int type,
-			       void *frame, ssize_t len)
+void hsw_read_infoframe(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			unsigned int type, void *frame, ssize_t len)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index 70f4ae6bbda9..357b54a501e8 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -502,7 +502,12 @@ void lspcon_read_infoframe(struct intel_encoder *encoder,
 			   unsigned int type,
 			   void *frame, ssize_t len)
 {
-	/* FIXME implement this */
+	/* FIXME implement for AVI Infoframe as well */
+	if (type == HDMI_PACKET_TYPE_GAMUT_METADATA) {
+		drm_dbg_kms(encoder->base.dev, "Read HDR metadata for lspcon\n");
+		hsw_read_infoframe(encoder, crtc_state, type,
+				   frame, len);
+	}
 }
 
 void lspcon_set_infoframes(struct intel_encoder *encoder,
diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.h b/drivers/gpu/drm/i915/display/intel_lspcon.h
index 9505e234e2fd..b1f45bd14409 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.h
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.h
@@ -38,5 +38,9 @@ void hsw_write_infoframe(struct intel_encoder *encoder,
 			 const struct intel_crtc_state *crtc_state,
 			 unsigned int type,
 			const void *frame, ssize_t len);
+void hsw_read_infoframe(struct intel_encoder *encoder,
+			const struct intel_crtc_state *crtc_state,
+			unsigned int type,
+			void *frame, ssize_t len);
 
 #endif /* __INTEL_LSPCON_H__ */
-- 
2.26.2

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  parent reply	other threads:[~2020-10-06 12:33 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-06 13:06 [Intel-gfx] [v7 00/10] Enable HDR on MCA LSPCON based Gen9 devices Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 01/10] drm/i915/display: Add HDR Capability detection for LSPCON Uma Shankar
2020-10-08 10:54   ` Ville Syrjälä
2020-10-08 11:29     ` Shankar, Uma
2020-10-06 13:06 ` [Intel-gfx] [v7 02/10] drm/i915/display: Enable HDR on gen9 devices with MCA Lspcon Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 03/10] drm/i915/display: Attach HDR property for capable Gen9 devices Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 04/10] drm/i915/display: Enable BT2020 for HDR on LSPCON devices Uma Shankar
2020-10-08 11:18   ` Ville Syrjälä
2020-10-06 13:06 ` [Intel-gfx] [v7 05/10] drm/i915/display: Enable HDR for Parade based lspcon Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 06/10] drm/i915/display: Implement infoframes readback for LSPCON Uma Shankar
2020-10-06 13:06 ` Uma Shankar [this message]
2020-10-06 13:06 ` [Intel-gfx] [v7 08/10] drm/i915/lspcon: Create separate infoframe_enabled helper Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 09/10] drm/i915/lspcon: Do not send DRM infoframes to non-HDMI sinks Uma Shankar
2020-10-06 13:06 ` [Intel-gfx] [v7 10/10] drm/i915/display: [NOT FOR MERGE] Reduce blanking to support 4k60@10bpp for LSPCON Uma Shankar
2020-10-06 15:00 ` [Intel-gfx] ✗ Fi.CI.SPARSE: warning for Enable HDR on MCA LSPCON based Gen9 devices (rev7) Patchwork
2020-10-06 15:24 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-10-06 19:27 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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