C++ (Cpp) drm_crtc_helper_set_mode Examples

Example #1

File: cdv_intel_hdmi.c Project: krzk/linux

static int cdv_hdmi_set_property(struct drm_connector *connector,
				       struct drm_property *property,
				       uint64_t value)
{
	struct drm_encoder *encoder = connector->encoder;

	if (!strcmp(property->name, "scaling mode") && encoder) {
		struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
		bool centre;
		uint64_t curValue;

		if (!crtc)
			return -1;

		switch (value) {
		case DRM_MODE_SCALE_FULLSCREEN:
			break;
		case DRM_MODE_SCALE_NO_SCALE:
			break;
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			return -1;
		}

		if (drm_object_property_get_value(&connector->base,
							property, &curValue))
			return -1;

		if (curValue == value)
			return 0;

		if (drm_object_property_set_value(&connector->base,
							property, value))
			return -1;

		centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
			(value == DRM_MODE_SCALE_NO_SCALE);

		if (crtc->saved_mode.hdisplay != 0 &&
		    crtc->saved_mode.vdisplay != 0) {
			if (centre) {
				if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
					    encoder->crtc->x, encoder->crtc->y, encoder->crtc->primary->fb))
					return -1;
			} else {
				const struct drm_encoder_helper_funcs *helpers
						    = encoder->helper_private;
				helpers->mode_set(encoder, &crtc->saved_mode,
					     &crtc->saved_adjusted_mode);
			}
		}
	}
	return 0;
}

Example #2

static int
intel_hdmi_set_property(struct drm_connector *connector,
			struct drm_property *property,
			uint64_t val)
{
	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
	struct drm_i915_private *dev_priv = connector->dev->dev_private;
	int ret;

	ret = drm_connector_property_set_value(connector, property, val);
	if (ret)
		return ret;

	if (property == dev_priv->force_audio_property) {
		enum hdmi_force_audio i = val;
		bool has_audio;

		if (i == intel_hdmi->force_audio)
			return 0;

		intel_hdmi->force_audio = i;

		if (i == HDMI_AUDIO_AUTO)
			has_audio = intel_hdmi_detect_audio(connector);
		else
			has_audio = (i == HDMI_AUDIO_ON);

		if (i == HDMI_AUDIO_OFF_DVI)
			intel_hdmi->has_hdmi_sink = 0;

		intel_hdmi->has_audio = has_audio;
		goto done;
	}

	if (property == dev_priv->broadcast_rgb_property) {
		if (val == !!intel_hdmi->color_range)
			return 0;

		intel_hdmi->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
		goto done;
	}

	return -EINVAL;

done:
	if (intel_hdmi->base.base.crtc) {
		struct drm_crtc *crtc = intel_hdmi->base.base.crtc;
		drm_crtc_helper_set_mode(crtc, &crtc->mode,
					 crtc->x, crtc->y,
					 crtc->fb);
	}

	return 0;
}