示例#1
0
文件: intel_psr.c 项目: 020gzh/linux
static void intel_psr_write_vsc(struct intel_dp *intel_dp,
				const struct edp_vsc_psr *vsc_psr)
{
	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = dig_port->base.base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_crtc *crtc = to_intel_crtc(dig_port->base.base.crtc);
	enum transcoder cpu_transcoder = crtc->config->cpu_transcoder;
	i915_reg_t ctl_reg = HSW_TVIDEO_DIP_CTL(cpu_transcoder);
	uint32_t *data = (uint32_t *) vsc_psr;
	unsigned int i;

	/* As per BSPec (Pipe Video Data Island Packet), we need to disable
	   the video DIP being updated before program video DIP data buffer
	   registers for DIP being updated. */
	I915_WRITE(ctl_reg, 0);
	POSTING_READ(ctl_reg);

	for (i = 0; i < sizeof(*vsc_psr); i += 4) {
		I915_WRITE(HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder,
						   i >> 2), *data);
		data++;
	}
	for (; i < VIDEO_DIP_VSC_DATA_SIZE; i += 4)
		I915_WRITE(HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder,
						   i >> 2), 0);

	I915_WRITE(ctl_reg, VIDEO_DIP_ENABLE_VSC_HSW);
	POSTING_READ(ctl_reg);
}
示例#2
0
static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop)
{
	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = intel_dig_port->base.base.dev;
	struct intel_connector *intel_connector;
	struct drm_connector *connector;
	int i;

	intel_connector = intel_connector_alloc();
	if (!intel_connector)
		return NULL;

	connector = &intel_connector->base;
	drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs, DRM_MODE_CONNECTOR_DisplayPort);
	drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs);

	intel_connector->get_hw_state = intel_dp_mst_get_hw_state;
	intel_connector->mst_port = intel_dp;
	intel_connector->port = port;

	for (i = PIPE_A; i <= PIPE_C; i++) {
		drm_mode_connector_attach_encoder(&intel_connector->base,
						  &intel_dp->mst_encoders[i]->base.base);
	}
	intel_dp_add_properties(intel_dp, connector);

	drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
	drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);

	drm_mode_connector_set_path_property(connector, pathprop);
	return connector;
}
示例#3
0
文件: intel_dp_mst.c 项目: krzk/linux
static void intel_dp_mst_hotplug(struct drm_dp_mst_topology_mgr *mgr)
{
	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = intel_dig_port->base.base.dev;

	drm_kms_helper_hotplug_event(dev);
}
示例#4
0
static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, const char *pathprop)
{
	struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = intel_dig_port->base.base.dev;
	struct drm_i915_private *dev_priv = to_i915(dev);
	struct intel_connector *intel_connector;
	struct drm_connector *connector;
	enum pipe pipe;
	int ret;

	intel_connector = intel_connector_alloc();
	if (!intel_connector)
		return NULL;

	intel_connector->get_hw_state = intel_dp_mst_get_hw_state;
	intel_connector->mst_port = intel_dp;
	intel_connector->port = port;
	drm_dp_mst_get_port_malloc(port);

	connector = &intel_connector->base;
	ret = drm_connector_init(dev, connector, &intel_dp_mst_connector_funcs,
				 DRM_MODE_CONNECTOR_DisplayPort);
	if (ret) {
		intel_connector_free(intel_connector);
		return NULL;
	}

	drm_connector_helper_add(connector, &intel_dp_mst_connector_helper_funcs);

	for_each_pipe(dev_priv, pipe) {
		struct drm_encoder *enc =
			&intel_dp->mst_encoders[pipe]->base.base;

		ret = drm_connector_attach_encoder(&intel_connector->base, enc);
		if (ret)
			goto err;
	}

	drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
	drm_object_attach_property(&connector->base, dev->mode_config.tile_property, 0);

	ret = drm_connector_set_path_property(connector, pathprop);
	if (ret)
		goto err;

	intel_attach_force_audio_property(connector);
	intel_attach_broadcast_rgb_property(connector);
	drm_connector_attach_max_bpc_property(connector, 6, 12);

	return connector;

err:
	drm_connector_cleanup(connector);
	return NULL;
}
示例#5
0
static void hsw_psr_enable_sink(struct intel_dp *intel_dp)
{
	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = dig_port->base.base.dev;
	struct drm_i915_private *dev_priv = to_i915(dev);
	uint32_t aux_clock_divider;
	i915_reg_t aux_ctl_reg;
	static const uint8_t aux_msg[] = {
		[0] = DP_AUX_NATIVE_WRITE << 4,
		[1] = DP_SET_POWER >> 8,
		[2] = DP_SET_POWER & 0xff,
		[3] = 1 - 1,
		[4] = DP_SET_POWER_D0,
	};
示例#6
0
文件: intel_psr.c 项目: 020gzh/linux
static void vlv_psr_setup_vsc(struct intel_dp *intel_dp)
{
	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = intel_dig_port->base.base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct drm_crtc *crtc = intel_dig_port->base.base.crtc;
	enum pipe pipe = to_intel_crtc(crtc)->pipe;
	uint32_t val;

	/* VLV auto-generate VSC package as per EDP 1.3 spec, Table 3.10 */
	val  = I915_READ(VLV_VSCSDP(pipe));
	val &= ~VLV_EDP_PSR_SDP_FREQ_MASK;
	val |= VLV_EDP_PSR_SDP_FREQ_EVFRAME;
	I915_WRITE(VLV_VSCSDP(pipe), val);
}
示例#7
0
static void intel_psr_enable_sink(struct intel_dp *intel_dp)
{
	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
	struct drm_device *dev = dig_port->base.base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	uint32_t aux_clock_divider;
	int precharge = 0x3;
	bool only_standby = false;
	static const uint8_t aux_msg[] = {
		[0] = DP_AUX_NATIVE_WRITE << 4,
		[1] = DP_SET_POWER >> 8,
		[2] = DP_SET_POWER & 0xff,
		[3] = 1 - 1,
		[4] = DP_SET_POWER_D0,
	};
示例#8
0
static void lspcon_resume_in_pcon_wa(struct intel_lspcon *lspcon)
{
	struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon);
	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
	unsigned long start = jiffies;

	while (1) {
		if (intel_digital_port_connected(&dig_port->base)) {
			DRM_DEBUG_KMS("LSPCON recovering in PCON mode after %u ms\n",
				      jiffies_to_msecs(jiffies - start));
			return;
		}

		if (time_after(jiffies, start + msecs_to_jiffies(1000)))
			break;

		usleep_range(10000, 15000);
	}

	DRM_DEBUG_KMS("LSPCON DP descriptor mismatch after resume\n");
}