Attachment 113778 Details for Bug 83226 – set quantization_range in AVI infoframe if the monitor supports selectable range

[patch] set quantization_range in AVI infoframe if the monitor supports selectable range

0001-drm-radeon-setup-quantization_range-in-AVI-infoframe.patch (text/plain), 2.17 KB, created by Alex Deucher on 2015-02-23 22:19:39 UTC

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Creator: Alex Deucher

Created: 2015-02-23 22:19:39 UTC

Size: 2.17 KB

patch

obsolete

>From 93e941177b0faef1b5ee3984a58b97f6d3a849a9 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Mon, 23 Feb 2015 17:14:47 -0500
>Subject: [PATCH] drm/radeon: setup quantization_range in AVI infoframe
>
>If the display supports selectable range, set the range
>based on what the user has selected for output csc.
>
>bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=83226
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>---
> drivers/gpu/drm/radeon/radeon_audio.c | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
>index a3ceef6..701a844 100644
>--- a/drivers/gpu/drm/radeon/radeon_audio.c
>+++ b/drivers/gpu/drm/radeon/radeon_audio.c
>@@ -523,16 +523,40 @@ static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
> 	struct radeon_device *rdev = encoder->dev->dev_private;
> 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
> 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
>+	struct drm_connector *connector;
>+	struct radeon_connector *radeon_connector = NULL;
> 	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
> 	struct hdmi_avi_infoframe frame;
> 	int err;
> 
>+	list_for_each_entry(connector,
>+		&encoder->dev->mode_config.connector_list, head) {
>+		if (connector->encoder == encoder) {
>+			radeon_connector = to_radeon_connector(connector);
>+			break;
>+		}
>+	}
>+
>+	if (!radeon_connector) {
>+		DRM_ERROR("Couldn't find encoder's connector\n");
>+		return -ENOENT;
>+	}
>+
> 	err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode);
> 	if (err < 0) {
> 		DRM_ERROR("failed to setup AVI infoframe: %d\n", err);
> 		return err;
> 	}
> 
>+	if (drm_rgb_quant_range_selectable(radeon_connector_edid(connector))) {
>+		if (radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB)
>+			frame.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED;
>+		else
>+			frame.quantization_range = HDMI_QUANTIZATION_RANGE_FULL;
>+	} else {
>+		frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
>+	}
>+
> 	err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
> 	if (err < 0) {
> 		DRM_ERROR("failed to pack AVI infoframe: %d\n", err);
>-- 
>1.8.3.1
>

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Attachments on bug 83226: 113757 | 113758 | 113778 | 117787 | 117788 | 117948

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