[Intel-gfx] [PATCH 08/15] drm: set output colorspace in AVI infoframe
Shashank Sharma
shashank.sharma at intel.com
Fri Jul 7 03:19:14 UTC 2017
A source must set output colorspace information in AVI
infoframes, so that the sink can decode upcoming frames
accordingly.
This patch adds a function to add the output colorspace
information in the AVI infoframes.
V2: Rebase
V3: Rebase
V4: Rebase
V5: Rebase
V6: Made patch independent of HDMI output type.
Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Jose Abreu <Jose.Abreu at synopsys.com>
Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
---
drivers/gpu/drm/drm_edid.c | 29 +++++++++++++++++++++++++++++
include/drm/drm_edid.h | 5 +++++
2 files changed, 34 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 944a28f..cede86e 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4796,6 +4796,35 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
/**
+ * drm_hdmi_avi_infoframe_set_colorspace - fill an HDMI AVI infoframe with
+ * colorspace data of the output type
+ *
+ * @frame: HDMI AVI infoframe
+ * @mode: DRM display mode
+ * @hdmi_output: HDMI output colorspace
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+int
+drm_hdmi_avi_infoframe_set_colorspace(struct hdmi_avi_infoframe *frame,
+ const struct drm_display_mode *mode,
+ enum hdmi_colorspace colorspace)
+{
+ if (colorspace > HDMI_COLORSPACE_YUV420 ||
+ colorspace < HDMI_COLORSPACE_RGB) {
+ DRM_ERROR("Invalid color space type\n");
+ return -EINVAL;
+ }
+
+ frame->colorspace = colorspace;
+ if (colorspace == HDMI_COLORSPACE_YUV420)
+ frame->pixel_repeat = 0;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_hdmi_avi_infoframe_set_colorspace);
+
+/**
* drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
* quantization range information
* @frame: HDMI AVI infoframe
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index aa58146..b79e0cb 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -332,6 +332,7 @@ struct cea_sad {
struct drm_encoder;
struct drm_connector;
struct drm_display_mode;
+enum drm_hdmi_output_type;
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid);
int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads);
@@ -354,6 +355,10 @@ drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
const struct drm_display_mode *mode,
bool is_hdmi2_sink);
int
+drm_hdmi_avi_infoframe_set_colorspace(struct hdmi_avi_infoframe *frame,
+ const struct drm_display_mode *mode,
+ enum hdmi_colorspace colorspace);
+int
drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
const struct drm_display_mode *mode);
void
--
2.7.4
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