WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/intel_bios.c

 				      dev_priv->vbt.bios_lvds_val);
+		}
+	}
+}
+static void
+parse_lfp_backlight(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
+{
+	const struct bdb_lfp_backlight_data *backlight_data;
+	const struct bdb_lfp_backlight_data_entry *entry;
+	backlight_data = find_section(bdb, BDB_LVDS_BACKLIGHT);
+	if (!backlight_data)
+		return;
+	if (backlight_data->entry_size != sizeof(backlight_data->data[0])) {
+		DRM_DEBUG_KMS("Unsupported backlight data entry size %u\n",
+			      backlight_data->entry_size);
+		return;
+	}
+	entry = &backlight_data->data[panel_type];
+	dev_priv->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz;
+	dev_priv->vbt.backlight.active_low_pwm = entry->active_low_pwm;
+	DRM_DEBUG_KMS("VBT backlight PWM modulation frequency %u Hz, "
+		      "active %s, min brightness %u, level %u\n",
+		      dev_priv->vbt.backlight.pwm_freq_hz,
+		      dev_priv->vbt.backlight.active_low_pwm ? "low" : "high",
+		      entry->min_brightness,
+		      backlight_data->level[panel_type]);
+}
 /* Try to find sdvo panel data */
 static void
 parse_sdvo_panel_data(struct drm_i915_private *dev_priv,
 		      struct bdb_header *bdb)
 static int intel_bios_ssc_frequency(struct drm_device *dev,
 				    bool alternate)
+{
 	switch (INTEL_INFO(dev)->gen) {
 	case 2:
-		return alternate ? 66 : 48;
+		return alternate ? 66667 : 48000;
 	case 3:
 	case 4:
-		return alternate ? 100 : 96;
+		return alternate ? 100000 : 96000;
 	default:
-		return alternate ? 100 : 120;
+		return alternate ? 100000 : 120000;
+	}
+}
 static void
 parse_sdvo_device_mapping(struct drm_i915_private *dev_priv,
 			  struct bdb_header *bdb)
+{
 	struct sdvo_device_mapping *p_mapping;
 	struct bdb_general_definitions *p_defs;
-	struct child_device_config *p_child;
+	union child_device_config *p_child;
 	int i, child_device_num, count;
 	u16	block_size;
 	p_defs = find_section(bdb, BDB_GENERAL_DEFINITIONS);
 	child_device_num = (block_size - sizeof(*p_defs)) /
 				sizeof(*p_child);
 	count = 0;
 	for (i = 0; i < child_device_num; i++) {
 		p_child = &(p_defs->devices[i]);
-		if (!p_child->device_type) {
+		if (!p_child->old.device_type) {
 			/* skip the device block if device type is invalid */
 			continue;
+		}
-		if (p_child->slave_addr != SLAVE_ADDR1 &&
+		if (p_child->old.slave_addr != SLAVE_ADDR1 &&
-			p_child->slave_addr != SLAVE_ADDR2) {
+			p_child->old.slave_addr != SLAVE_ADDR2) {
 			/*
 			 * If the slave address is neither 0x70 nor 0x72,
 			 * it is not a SDVO device. Skip it.
 			 */
 			continue;
+		}
-		if (p_child->dvo_port != DEVICE_PORT_DVOB &&
+		if (p_child->old.dvo_port != DEVICE_PORT_DVOB &&
-			p_child->dvo_port != DEVICE_PORT_DVOC) {
+			p_child->old.dvo_port != DEVICE_PORT_DVOC) {
 			/* skip the incorrect SDVO port */
 			DRM_DEBUG_KMS("Incorrect SDVO port. Skip it\n");
 			continue;
+		}
 		DRM_DEBUG_KMS("the SDVO device with slave addr %2x is found on"
 				" %s port\n",
-				p_child->slave_addr,
+				p_child->old.slave_addr,
-				(p_child->dvo_port == DEVICE_PORT_DVOB) ?
+				(p_child->old.dvo_port == DEVICE_PORT_DVOB) ?
 					"SDVOB" : "SDVOC");
-		p_mapping = &(dev_priv->sdvo_mappings[p_child->dvo_port - 1]);
+		p_mapping = &(dev_priv->sdvo_mappings[p_child->old.dvo_port - 1]);
 		if (!p_mapping->initialized) {
-			p_mapping->dvo_port = p_child->dvo_port;
+			p_mapping->dvo_port = p_child->old.dvo_port;
-			p_mapping->slave_addr = p_child->slave_addr;
+			p_mapping->slave_addr = p_child->old.slave_addr;
-			p_mapping->dvo_wiring = p_child->dvo_wiring;
+			p_mapping->dvo_wiring = p_child->old.dvo_wiring;
-			p_mapping->ddc_pin = p_child->ddc_pin;
+			p_mapping->ddc_pin = p_child->old.ddc_pin;
-			p_mapping->i2c_pin = p_child->i2c_pin;
+			p_mapping->i2c_pin = p_child->old.i2c_pin;
 			p_mapping->initialized = 1;
 			DRM_DEBUG_KMS("SDVO device: dvo=%x, addr=%x, wiring=%d, ddc_pin=%d, i2c_pin=%d\n",
 				      p_mapping->dvo_port,
 				      p_mapping->slave_addr,
 				      p_mapping->dvo_wiring,
 				      p_mapping->i2c_pin);
 		} else {
 			DRM_DEBUG_KMS("Maybe one SDVO port is shared by "
 					 "two SDVO device.\n");
+		}
-		if (p_child->slave2_addr) {
+		if (p_child->old.slave2_addr) {
 			/* Maybe this is a SDVO device with multiple inputs */
 			/* And the mapping info is not added */
 			DRM_DEBUG_KMS("there exists the slave2_addr. Maybe this"
 				" is a SDVO device with multiple inputs.\n");
+		}
 static void
 parse_driver_features(struct drm_i915_private *dev_priv,
 		       struct bdb_header *bdb)
-{
 	struct drm_device *dev = dev_priv->dev;
 	struct bdb_driver_features *driver;
 	driver = find_section(bdb, BDB_DRIVER_FEATURES);
-	if (!driver)
-		return;
+	if (!driver)
 		return;
 	if (SUPPORTS_EDP(dev) &&
-	    driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
+	if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
 		dev_priv->vbt.edp_support = 1;
 	struct edp_power_seq *edp_pps;
 	struct edp_link_params *edp_link_params;
 	edp = find_section(bdb, BDB_EDP);
 	if (!edp) {
-		if (SUPPORTS_EDP(dev_priv->dev) && dev_priv->vbt.edp_support)
+		if (dev_priv->vbt.edp_support)
 			DRM_DEBUG_KMS("No eDP BDB found but eDP panel supported.\n");
 		return;
+	}
 		break;
+	}
+}
+static void
+parse_mipi(struct drm_i915_private *dev_priv, struct bdb_header *bdb)
+{
+	struct bdb_mipi *mipi;
+	mipi = find_section(bdb, BDB_MIPI);
+	if (!mipi) {
+		DRM_DEBUG_KMS("No MIPI BDB found");
+		return;
+	}
+	/* XXX: add more info */
+	dev_priv->vbt.dsi.panel_id = mipi->panel_id;
+}
+static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
+			   struct bdb_header *bdb)
+{
+	union child_device_config *it, *child = NULL;
+	struct ddi_vbt_port_info *info = &dev_priv->vbt.ddi_port_info[port];
+	uint8_t hdmi_level_shift;
+	int i, j;
+	bool is_dvi, is_hdmi, is_dp, is_edp, is_crt;
+	uint8_t aux_channel;
+	/* Each DDI port can have more than one value on the "DVO Port" field,
+	 * so look for all the possible values for each port and abort if more
+	 * than one is found. */
+	int dvo_ports[][2] = {
+		{DVO_PORT_HDMIA, DVO_PORT_DPA},
+		{DVO_PORT_HDMIB, DVO_PORT_DPB},
+		{DVO_PORT_HDMIC, DVO_PORT_DPC},
+		{DVO_PORT_HDMID, DVO_PORT_DPD},
+		{DVO_PORT_CRT, -1 /* Port E can only be DVO_PORT_CRT */ },
+	};
+	/* Find the child device to use, abort if more than one found. */
+	for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
+		it = dev_priv->vbt.child_dev + i;
+		for (j = 0; j < 2; j++) {
+			if (dvo_ports[port][j] == -1)
+				break;
+			if (it->common.dvo_port == dvo_ports[port][j]) {
+				if (child) {
+					DRM_DEBUG_KMS("More than one child device for port %c in VBT.\n",
+						      port_name(port));
+					return;
+				}
+				child = it;
+			}
+		}
+	}
+	if (!child)
+		return;
+	aux_channel = child->raw[25];
+	is_dvi = child->common.device_type & DEVICE_TYPE_TMDS_DVI_SIGNALING;
+	is_dp = child->common.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
+	is_crt = child->common.device_type & DEVICE_TYPE_ANALOG_OUTPUT;
+	is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
+	is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
+	info->supports_dvi = is_dvi;
+	info->supports_hdmi = is_hdmi;
+	info->supports_dp = is_dp;
+	DRM_DEBUG_KMS("Port %c VBT info: DP:%d HDMI:%d DVI:%d EDP:%d CRT:%d\n",
+		      port_name(port), is_dp, is_hdmi, is_dvi, is_edp, is_crt);
+	if (is_edp && is_dvi)
+		DRM_DEBUG_KMS("Internal DP port %c is TMDS compatible\n",
+			      port_name(port));
+	if (is_crt && port != PORT_E)
+		DRM_DEBUG_KMS("Port %c is analog\n", port_name(port));
+	if (is_crt && (is_dvi || is_dp))
+		DRM_DEBUG_KMS("Analog port %c is also DP or TMDS compatible\n",
+			      port_name(port));
+	if (is_dvi && (port == PORT_A || port == PORT_E))
+		DRM_DEBUG_KMS("Port %c is TMDS compabile\n", port_name(port));
+	if (!is_dvi && !is_dp && !is_crt)
+		DRM_DEBUG_KMS("Port %c is not DP/TMDS/CRT compatible\n",
+			      port_name(port));
+	if (is_edp && (port == PORT_B || port == PORT_C || port == PORT_E))
+		DRM_DEBUG_KMS("Port %c is internal DP\n", port_name(port));
+	if (is_dvi) {
+		if (child->common.ddc_pin == 0x05 && port != PORT_B)
+			DRM_DEBUG_KMS("Unexpected DDC pin for port B\n");
+		if (child->common.ddc_pin == 0x04 && port != PORT_C)
+			DRM_DEBUG_KMS("Unexpected DDC pin for port C\n");
+		if (child->common.ddc_pin == 0x06 && port != PORT_D)
+			DRM_DEBUG_KMS("Unexpected DDC pin for port D\n");
+	}
+	if (is_dp) {
+		if (aux_channel == 0x40 && port != PORT_A)
+			DRM_DEBUG_KMS("Unexpected AUX channel for port A\n");
+		if (aux_channel == 0x10 && port != PORT_B)
+			DRM_DEBUG_KMS("Unexpected AUX channel for port B\n");
+		if (aux_channel == 0x20 && port != PORT_C)
+			DRM_DEBUG_KMS("Unexpected AUX channel for port C\n");
+		if (aux_channel == 0x30 && port != PORT_D)
+			DRM_DEBUG_KMS("Unexpected AUX channel for port D\n");
+	}
+	if (bdb->version >= 158) {
+		/* The VBT HDMI level shift values match the table we have. */
+		hdmi_level_shift = child->raw[7] & 0xF;
+		if (hdmi_level_shift < 0xC) {
+			DRM_DEBUG_KMS("VBT HDMI level shift for port %c: %d\n",
+				      port_name(port),
+				      hdmi_level_shift);
+			info->hdmi_level_shift = hdmi_level_shift;
+		}
+	}
+}
+static void parse_ddi_ports(struct drm_i915_private *dev_priv,
+			    struct bdb_header *bdb)
+{
+	struct drm_device *dev = dev_priv->dev;
+	enum port port;
+	if (!HAS_DDI(dev))
+		return;
+	if (!dev_priv->vbt.child_dev_num)
+		return;
+	if (bdb->version < 155)
+		return;
+	for (port = PORT_A; port < I915_MAX_PORTS; port++)
+		parse_ddi_port(dev_priv, port, bdb);
+}
 static void
 parse_device_mapping(struct drm_i915_private *dev_priv,
 		       struct bdb_header *bdb)
+{
 	struct bdb_general_definitions *p_defs;
-	struct child_device_config *p_child, *child_dev_ptr;
+	union child_device_config *p_child, *child_dev_ptr;
 	int i, child_device_num, count;
 	u16	block_size;
 				sizeof(*p_child);
 	count = 0;
 	/* get the number of child device that is present */
 	for (i = 0; i < child_device_num; i++) {
 		p_child = &(p_defs->devices[i]);
-		if (!p_child->device_type) {
+		if (!p_child->common.device_type) {
 			/* skip the device block if device type is invalid */
 			continue;
+		}
 		count++;
+	}
 	dev_priv->vbt.child_dev_num = count;
 	count = 0;
 	for (i = 0; i < child_device_num; i++) {
 		p_child = &(p_defs->devices[i]);
-		if (!p_child->device_type) {
+		if (!p_child->common.device_type) {
 			/* skip the device block if device type is invalid */
 			continue;
+		}
 		child_dev_ptr = dev_priv->vbt.child_dev + count;
 static void
 init_vbt_defaults(struct drm_i915_private *dev_priv)
+{
+	struct drm_device *dev = dev_priv->dev;
-	struct drm_device *dev = dev_priv->dev;
+	enum port port;
 	dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC;
 	dev_priv->vbt.int_tv_support = 1;
 	dev_priv->vbt.int_crt_support = 1;
 	/* Default to using SSC */
+	dev_priv->vbt.lvds_use_ssc = 1;
+	/*
+	 * Core/SandyBridge/IvyBridge use alternative (120MHz) reference
+	 * clock for LVDS.
-	dev_priv->vbt.lvds_use_ssc = 1;
+	 */
+	dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev,
-	dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1);
+			!HAS_PCH_SPLIT(dev));
+	DRM_DEBUG_KMS("Set default to SSC at %d kHz\n", dev_priv->vbt.lvds_ssc_freq);
+	for (port = PORT_A; port < I915_MAX_PORTS; port++) {
+		struct ddi_vbt_port_info *info =
+			&dev_priv->vbt.ddi_port_info[port];
+		/* Recommended BSpec default: 800mV 0dB. */
+		info->hdmi_level_shift = 6;
+		info->supports_dvi = (port != PORT_A && port != PORT_E);
+		info->supports_hdmi = info->supports_dvi;
+		info->supports_dp = (port != PORT_E);
 	DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->vbt.lvds_ssc_freq);
+}
 	/* Grab useful general definitions */
 	parse_general_features(dev_priv, bdb);
 	parse_general_definitions(dev_priv, bdb);
+	parse_lfp_panel_data(dev_priv, bdb);
-	parse_lfp_panel_data(dev_priv, bdb);
+	parse_lfp_backlight(dev_priv, bdb);
 	parse_sdvo_panel_data(dev_priv, bdb);
 	parse_sdvo_device_mapping(dev_priv, bdb);
 	parse_device_mapping(dev_priv, bdb);
 	parse_driver_features(dev_priv, bdb);
+	parse_edp(dev_priv, bdb);
+	parse_mipi(dev_priv, bdb);
-	parse_edp(dev_priv, bdb);
+	parse_ddi_ports(dev_priv, bdb);
 	if (bios)

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/intel_bios.c – Rev 4104 → 4560