nouveau_connector.c 33.6 KB
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/*
 * Copyright (C) 2008 Maarten Maathuis.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

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#include <acpi/button.h>

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#include <linux/pm_runtime.h>

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#include <drm/drmP.h>
#include <drm/drm_edid.h>
#include <drm/drm_crtc_helper.h>
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#include "nouveau_reg.h"
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#include "nouveau_drm.h"
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#include "dispnv04/hw.h"
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#include "nouveau_acpi.h"
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#include "nouveau_display.h"
#include "nouveau_connector.h"
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#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
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#include <subdev/i2c.h>
#include <subdev/gpio.h>

MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
static int nouveau_tv_disable = 0;
module_param_named(tv_disable, nouveau_tv_disable, int, 0400);

MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
static int nouveau_ignorelid = 0;
module_param_named(ignorelid, nouveau_ignorelid, int, 0400);

MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
static int nouveau_duallink = 1;
module_param_named(duallink, nouveau_duallink, int, 0400);
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struct nouveau_encoder *
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find_encoder(struct drm_connector *connector, int type)
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{
	struct drm_device *dev = connector->dev;
	struct nouveau_encoder *nv_encoder;
	struct drm_mode_object *obj;
	int i, id;

	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));

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		if (type == DCB_OUTPUT_ANY || nv_encoder->dcb->type == type)
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			return nv_encoder;
	}

	return NULL;
}

struct nouveau_connector *
nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
{
	struct drm_device *dev = to_drm_encoder(encoder)->dev;
	struct drm_connector *drm_connector;

	list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
		if (drm_connector->encoder == to_drm_encoder(encoder))
			return nouveau_connector(drm_connector);
	}

	return NULL;
}

static void
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nouveau_connector_destroy(struct drm_connector *connector)
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{
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	kfree(nv_connector->edid);
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	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(connector);
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}

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static struct nouveau_i2c_port *
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nouveau_connector_ddc_detect(struct drm_connector *connector,
			     struct nouveau_encoder **pnv_encoder)
{
	struct drm_device *dev = connector->dev;
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	struct nouveau_i2c_port *port = NULL;
	int i, panel = -ENODEV;

	/* eDP panels need powering on by us (if the VBIOS doesn't default it
	 * to on) before doing any AUX channel transactions.  LVDS panel power
	 * is handled by the SOR itself, and not required for LVDS DDC.
	 */
	if (nv_connector->type == DCB_CONNECTOR_eDP) {
		panel = gpio->get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
		if (panel == 0) {
			gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
			msleep(300);
		}
	}
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	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		struct nouveau_encoder *nv_encoder;
		struct drm_mode_object *obj;
		int id;

		id = connector->encoder_ids[i];
		if (!id)
			break;

		obj = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
		if (!obj)
			continue;
		nv_encoder = nouveau_encoder(obj_to_encoder(obj));
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		port = nv_encoder->i2c;
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		if (port && nv_probe_i2c(port, 0x50)) {
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			*pnv_encoder = nv_encoder;
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			break;
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		}
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		port = NULL;
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	}

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	/* eDP panel not detected, restore panel power GPIO to previous
	 * state to avoid confusing the SOR for other output types.
	 */
	if (!port && panel == 0)
		gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);

	return port;
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}

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static struct nouveau_encoder *
nouveau_connector_of_detect(struct drm_connector *connector)
{
#ifdef __powerpc__
	struct drm_device *dev = connector->dev;
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder;
	struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);

	if (!dn ||
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	    !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
	      (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
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		return NULL;

	for_each_child_of_node(dn, cn) {
		const char *name = of_get_property(cn, "name", NULL);
		const void *edid = of_get_property(cn, "EDID", NULL);
		int idx = name ? name[strlen(name) - 1] - 'A' : 0;

		if (nv_encoder->dcb->i2c_index == idx && edid) {
			nv_connector->edid =
				kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			of_node_put(cn);
			return nv_encoder;
		}
	}
#endif
	return NULL;
}

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static void
nouveau_connector_set_encoder(struct drm_connector *connector,
			      struct nouveau_encoder *nv_encoder)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	struct nouveau_drm *drm = nouveau_drm(connector->dev);
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	struct drm_device *dev = connector->dev;

	if (nv_connector->detected_encoder == nv_encoder)
		return;
	nv_connector->detected_encoder = nv_encoder;

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	if (nv_device(drm->device)->card_type >= NV_50) {
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		connector->interlace_allowed = true;
		connector->doublescan_allowed = true;
	} else
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	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
	    nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
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		connector->doublescan_allowed = false;
		connector->interlace_allowed = false;
	} else {
		connector->doublescan_allowed = true;
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		if (nv_device(drm->device)->card_type == NV_20 ||
		   (nv_device(drm->device)->card_type == NV_10 &&
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		    (dev->pdev->device & 0x0ff0) != 0x0100 &&
		    (dev->pdev->device & 0x0ff0) != 0x0150))
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			/* HW is broken */
			connector->interlace_allowed = false;
		else
			connector->interlace_allowed = true;
	}

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	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
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		drm_object_property_set_value(&connector->base,
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			dev->mode_config.dvi_i_subconnector_property,
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			nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
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			DRM_MODE_SUBCONNECTOR_DVID :
			DRM_MODE_SUBCONNECTOR_DVIA);
	}
}

static enum drm_connector_status
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nouveau_connector_detect(struct drm_connector *connector, bool force)
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{
	struct drm_device *dev = connector->dev;
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
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	struct nouveau_encoder *nv_partner;
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	struct nouveau_i2c_port *i2c;
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	int type;
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	int ret;
	enum drm_connector_status conn_status = connector_status_disconnected;
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	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}
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	ret = pm_runtime_get_sync(connector->dev->dev);
	if (ret < 0)
		return conn_status;

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	i2c = nouveau_connector_ddc_detect(connector, &nv_encoder);
	if (i2c) {
		nv_connector->edid = drm_get_edid(connector, &i2c->adapter);
		drm_mode_connector_update_edid_property(connector,
							nv_connector->edid);
		if (!nv_connector->edid) {
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			NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
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				 drm_get_connector_name(connector));
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			goto detect_analog;
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		}

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		if (nv_encoder->dcb->type == DCB_OUTPUT_DP &&
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		    !nouveau_dp_detect(to_drm_encoder(nv_encoder))) {
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			NV_ERROR(drm, "Detected %s, but failed init\n",
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				 drm_get_connector_name(connector));
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			conn_status = connector_status_disconnected;
			goto out;
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		}

		/* Override encoder type for DVI-I based on whether EDID
		 * says the display is digital or analog, both use the
		 * same i2c channel so the value returned from ddc_detect
		 * isn't necessarily correct.
		 */
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		nv_partner = NULL;
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		if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
			nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
		if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
			nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);

		if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
				    nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
				   (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
				    nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
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			if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
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				type = DCB_OUTPUT_TMDS;
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			else
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				type = DCB_OUTPUT_ANALOG;
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			nv_encoder = find_encoder(connector, type);
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		}

		nouveau_connector_set_encoder(connector, nv_encoder);
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		conn_status = connector_status_connected;
		goto out;
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	}

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	nv_encoder = nouveau_connector_of_detect(connector);
	if (nv_encoder) {
		nouveau_connector_set_encoder(connector, nv_encoder);
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		conn_status = connector_status_connected;
		goto out;
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	}

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detect_analog:
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	nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
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	if (!nv_encoder && !nouveau_tv_disable)
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		nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
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	if (nv_encoder && force) {
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		struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
		struct drm_encoder_helper_funcs *helper =
						encoder->helper_private;

		if (helper->detect(encoder, connector) ==
						connector_status_connected) {
			nouveau_connector_set_encoder(connector, nv_encoder);
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			conn_status = connector_status_connected;
			goto out;
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		}

	}

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 out:

	pm_runtime_mark_last_busy(connector->dev->dev);
	pm_runtime_put_autosuspend(connector->dev->dev);

	return conn_status;
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}

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static enum drm_connector_status
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nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
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{
	struct drm_device *dev = connector->dev;
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	struct nouveau_drm *drm = nouveau_drm(dev);
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	/* Cleanup the previous EDID block. */
	if (nv_connector->edid) {
		drm_mode_connector_update_edid_property(connector, NULL);
		kfree(nv_connector->edid);
		nv_connector->edid = NULL;
	}

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	nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
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	if (!nv_encoder)
		return connector_status_disconnected;

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	/* Try retrieving EDID via DDC */
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	if (!drm->vbios.fp_no_ddc) {
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		status = nouveau_connector_detect(connector, force);
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		if (status == connector_status_connected)
			goto out;
	}

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	/* On some laptops (Sony, i'm looking at you) there appears to
	 * be no direct way of accessing the panel's EDID.  The only
	 * option available to us appears to be to ask ACPI for help..
	 *
	 * It's important this check's before trying straps, one of the
	 * said manufacturer's laptops are configured in such a way
	 * the nouveau decides an entry in the VBIOS FP mode table is
	 * valid - it's not (rh#613284)
	 */
	if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
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		if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
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			status = connector_status_connected;
			goto out;
		}
	}

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	/* If no EDID found above, and the VBIOS indicates a hardcoded
	 * modeline is avalilable for the panel, set it as the panel's
	 * native mode and exit.
	 */
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	if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
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	    nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
		status = connector_status_connected;
		goto out;
	}

	/* Still nothing, some VBIOS images have a hardcoded EDID block
	 * stored for the panel stored in them.
	 */
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	if (!drm->vbios.fp_no_ddc) {
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		struct edid *edid =
			(struct edid *)nouveau_bios_embedded_edid(dev);
		if (edid) {
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			nv_connector->edid =
					kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
			if (nv_connector->edid)
				status = connector_status_connected;
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		}
	}

out:
#if defined(CONFIG_ACPI_BUTTON) || \
	(defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
	if (status == connector_status_connected &&
	    !nouveau_ignorelid && !acpi_lid_open())
		status = connector_status_unknown;
#endif

	drm_mode_connector_update_edid_property(connector, nv_connector->edid);
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	nouveau_connector_set_encoder(connector, nv_encoder);
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	return status;
}

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static void
nouveau_connector_force(struct drm_connector *connector)
{
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	struct nouveau_drm *drm = nouveau_drm(connector->dev);
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
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	struct nouveau_encoder *nv_encoder;
	int type;

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	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
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		if (connector->force == DRM_FORCE_ON_DIGITAL)
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			type = DCB_OUTPUT_TMDS;
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		else
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			type = DCB_OUTPUT_ANALOG;
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	} else
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		type = DCB_OUTPUT_ANY;
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	nv_encoder = find_encoder(connector, type);
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	if (!nv_encoder) {
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		NV_ERROR(drm, "can't find encoder to force %s on!\n",
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			 drm_get_connector_name(connector));
		connector->status = connector_status_disconnected;
		return;
	}

	nouveau_connector_set_encoder(connector, nv_encoder);
}

static int
nouveau_connector_set_property(struct drm_connector *connector,
			       struct drm_property *property, uint64_t value)
{
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	struct nouveau_display *disp = nouveau_display(connector->dev);
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
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	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
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	struct drm_device *dev = connector->dev;
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	struct nouveau_crtc *nv_crtc;
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	int ret;

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	nv_crtc = NULL;
	if (connector->encoder && connector->encoder->crtc)
		nv_crtc = nouveau_crtc(connector->encoder->crtc);

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	/* Scaling mode */
	if (property == dev->mode_config.scaling_mode_property) {
		bool modeset = false;

		switch (value) {
		case DRM_MODE_SCALE_NONE:
		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			return -EINVAL;
		}

		/* LVDS always needs gpu scaling */
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		if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS &&
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		    value == DRM_MODE_SCALE_NONE)
			return -EINVAL;

		/* Changing between GPU and panel scaling requires a full
		 * modeset
		 */
		if ((nv_connector->scaling_mode == DRM_MODE_SCALE_NONE) ||
		    (value == DRM_MODE_SCALE_NONE))
			modeset = true;
		nv_connector->scaling_mode = value;

		if (!nv_crtc)
			return 0;

		if (modeset || !nv_crtc->set_scale) {
			ret = drm_crtc_helper_set_mode(&nv_crtc->base,
							&nv_crtc->base.mode,
							nv_crtc->base.x,
							nv_crtc->base.y, NULL);
			if (!ret)
				return -EINVAL;
		} else {
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			ret = nv_crtc->set_scale(nv_crtc, true);
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			if (ret)
				return ret;
		}

		return 0;
	}

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	/* Underscan */
	if (property == disp->underscan_property) {
		if (nv_connector->underscan != value) {
			nv_connector->underscan = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

	if (property == disp->underscan_hborder_property) {
		if (nv_connector->underscan_hborder != value) {
			nv_connector->underscan_hborder = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

	if (property == disp->underscan_vborder_property) {
		if (nv_connector->underscan_vborder != value) {
			nv_connector->underscan_vborder = value;
			if (!nv_crtc || !nv_crtc->set_scale)
				return 0;

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			return nv_crtc->set_scale(nv_crtc, true);
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		}

		return 0;
	}

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	/* Dithering */
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	if (property == disp->dithering_mode) {
		nv_connector->dithering_mode = value;
		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

		return nv_crtc->set_dither(nv_crtc, true);
	}
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	if (property == disp->dithering_depth) {
		nv_connector->dithering_depth = value;
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		if (!nv_crtc || !nv_crtc->set_dither)
			return 0;

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		return nv_crtc->set_dither(nv_crtc, true);
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	}

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	if (nv_crtc && nv_crtc->set_color_vibrance) {
		/* Hue */
		if (property == disp->vibrant_hue_property) {
			nv_crtc->vibrant_hue = value - 90;
			return nv_crtc->set_color_vibrance(nv_crtc, true);
		}
		/* Saturation */
		if (property == disp->color_vibrance_property) {
			nv_crtc->color_vibrance = value - 100;
			return nv_crtc->set_color_vibrance(nv_crtc, true);
		}
	}

575
	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
576
577
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
578
579
580
581
582

	return -EINVAL;
}

static struct drm_display_mode *
583
nouveau_connector_native_mode(struct drm_connector *connector)
584
{
585
	struct drm_connector_helper_funcs *helper = connector->helper_private;
586
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
587
588
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
589
590
591
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

592
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
593
		mode->vrefresh = drm_mode_vrefresh(mode);
594
595
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
596
597
598
			continue;

		/* Use preferred mode if there is one.. */
599
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
600
			NV_DEBUG(drm, "native mode from preferred\n");
601
602
603
			return drm_mode_duplicate(dev, mode);
		}

604
605
606
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
		if (mode->hdisplay < high_w)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay < high_h)
			continue;

		if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
		    mode->vrefresh < high_v)
			continue;

		high_w = mode->hdisplay;
		high_h = mode->vdisplay;
		high_v = mode->vrefresh;
		largest = mode;
	}

623
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
		      high_w, high_h, high_v);
	return largest ? drm_mode_duplicate(dev, largest) : NULL;
}

struct moderec {
	int hdisplay;
	int vdisplay;
};

static struct moderec scaler_modes[] = {
	{ 1920, 1200 },
	{ 1920, 1080 },
	{ 1680, 1050 },
	{ 1600, 1200 },
	{ 1400, 1050 },
	{ 1280, 1024 },
	{ 1280, 960 },
	{ 1152, 864 },
	{ 1024, 768 },
	{ 800, 600 },
	{ 720, 400 },
	{ 640, 480 },
	{ 640, 400 },
	{ 640, 350 },
	{}
};

static int
nouveau_connector_scaler_modes_add(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_display_mode *native = nv_connector->native_mode, *m;
	struct drm_device *dev = connector->dev;
	struct moderec *mode = &scaler_modes[0];
	int modes = 0;

	if (!native)
		return 0;

	while (mode->hdisplay) {
		if (mode->hdisplay <= native->hdisplay &&
		    mode->vdisplay <= native->vdisplay) {
			m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
					 drm_mode_vrefresh(native), false,
					 false, false);
			if (!m)
				continue;

			m->type |= DRM_MODE_TYPE_DRIVER;

			drm_mode_probed_add(connector, m);
			modes++;
		}

		mode++;
	}

	return modes;
}

684
685
686
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
687
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
688
689
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
690
	struct nvbios *bios = &drm->vbios;
691
692
693
694
695
696
697
	struct drm_display_mode *mode = nv_connector->native_mode;
	bool duallink;

	/* if the edid is feeling nice enough to provide this info, use it */
	if (nv_connector->edid && connector->display_info.bpc)
		return;

698
699
700
701
702
703
704
	/* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
	if (nv_connector->type == DCB_CONNECTOR_eDP) {
		connector->display_info.bpc = 6;
		return;
	}

	/* we're out of options unless we're LVDS, default to 8bpc */
705
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
706
		connector->display_info.bpc = 8;
707
		return;
708
709
710
	}

	connector->display_info.bpc = 6;
711
712
713
714
715
716
717
718
719
720
721
722

	/* LVDS: panel straps */
	if (bios->fp_no_ddc) {
		if (bios->fp.if_is_24bit)
			connector->display_info.bpc = 8;
		return;
	}

	/* LVDS: DDC panel, need to first determine the number of links to
	 * know which if_is_24bit flag to check...
	 */
	if (nv_connector->edid &&
723
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
724
725
726
727
728
729
730
731
732
		duallink = ((u8 *)nv_connector->edid)[121] == 2;
	else
		duallink = mode->clock >= bios->fp.duallink_transition_clk;

	if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
	    ( duallink && (bios->fp.strapless_is_24bit & 2)))
		connector->display_info.bpc = 8;
}

733
734
735
736
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
737
	struct nouveau_drm *drm = nouveau_drm(dev);
738
739
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
740
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
741
742
	int ret = 0;

743
	/* destroy the native mode, the attached monitor could have changed.
744
	 */
745
	if (nv_connector->native_mode) {
746
747
748
749
750
751
		drm_mode_destroy(dev, nv_connector->native_mode);
		nv_connector->native_mode = NULL;
	}

	if (nv_connector->edid)
		ret = drm_add_edid_modes(connector, nv_connector->edid);
752
	else
753
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
754
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
755
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
756
757
758
759
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
760
	}
761

762
763
764
765
766
767
	/* Determine display colour depth for everything except LVDS now,
	 * DP requires this before mode_valid() is called.
	 */
	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);

768
769
770
771
772
773
	/* Find the native mode if this is a digital panel, if we didn't
	 * find any modes through DDC previously add the native mode to
	 * the list of modes.
	 */
	if (!nv_connector->native_mode)
		nv_connector->native_mode =
774
			nouveau_connector_native_mode(connector);
775
776
777
778
779
780
781
782
	if (ret == 0 && nv_connector->native_mode) {
		struct drm_display_mode *mode;

		mode = drm_mode_duplicate(dev, nv_connector->native_mode);
		drm_mode_probed_add(connector, mode);
		ret = 1;
	}

783
784
785
	/* Determine LVDS colour depth, must happen after determining
	 * "native" mode as some VBIOS tables require us to use the
	 * pixel clock as part of the lookup...
786
	 */
787
788
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
789

790
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
791
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
792

793
794
795
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
796
797
798
799
800
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

801
802
803
804
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
805
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
806
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
807
808

	if (dcb->location != DCB_LOC_ON_CHIP ||
809
	    nv_device(drm->device)->chipset >= 0x46)
810
		return 165000;
811
	else if (nv_device(drm->device)->chipset >= 0x40)
812
		return 155000;
813
	else if (nv_device(drm->device)->chipset >= 0x18)
814
815
816
817
818
		return 135000;
	else
		return 112000;
}

819
820
821
822
823
824
static int
nouveau_connector_mode_valid(struct drm_connector *connector,
			     struct drm_display_mode *mode)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
825
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
826
827
828
829
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
830
	case DCB_OUTPUT_LVDS:
831
832
833
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
834
835
836
837
838
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
839
	case DCB_OUTPUT_TMDS:
840
841
842
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
843
		break;
844
	case DCB_OUTPUT_ANALOG:
845
846
847
848
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
849
	case DCB_OUTPUT_TV:
850
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
851
	case DCB_OUTPUT_DP:
852
853
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
854
		clock = clock * (connector->display_info.bpc * 3) / 10;
855
		break;
856
857
858
	default:
		BUG_ON(1);
		return MODE_BAD;
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
	}

	if (clock < min_clock)
		return MODE_CLOCK_LOW;

	if (clock > max_clock)
		return MODE_CLOCK_HIGH;

	return MODE_OK;
}

static struct drm_encoder *
nouveau_connector_best_encoder(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);

	if (nv_connector->detected_encoder)
		return to_drm_encoder(nv_connector->detected_encoder);

	return NULL;
}

static const struct drm_connector_helper_funcs
nouveau_connector_helper_funcs = {
	.get_modes = nouveau_connector_get_modes,
	.mode_valid = nouveau_connector_mode_valid,
	.best_encoder = nouveau_connector_best_encoder,
};

static const struct drm_connector_funcs
nouveau_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};

900
901
902
903
904
905
906
907
908
909
910
static const struct drm_connector_funcs
nouveau_connector_funcs_lvds = {
	.dpms = drm_helper_connector_dpms,
	.save = NULL,
	.restore = NULL,
	.detect = nouveau_connector_detect_lvds,
	.destroy = nouveau_connector_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.set_property = nouveau_connector_set_property,
	.force = nouveau_connector_force
};
911

912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
static void
nouveau_connector_hotplug_work(struct work_struct *work)
{
	struct nouveau_connector *nv_connector =
		container_of(work, struct nouveau_connector, hpd_work);
	struct drm_connector *connector = &nv_connector->base;
	struct drm_device *dev = connector->dev;
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	bool plugged = gpio->get(gpio, 0, nv_connector->hpd.func, 0xff);

	NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un",
		 drm_get_connector_name(connector));

	if (plugged)
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
	else
		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);

	drm_helper_hpd_irq_event(dev);
}

static int
nouveau_connector_hotplug(struct nouveau_eventh *event, int index)
{
	struct nouveau_connector *nv_connector =
		container_of(event, struct nouveau_connector, hpd_func);
	schedule_work(&nv_connector->hpd_work);
	return NVKM_EVENT_KEEP;
}

943
944
945
946
947
948
949
950
static int
drm_conntype_from_dcb(enum dcb_connector_type dcb)
{
	switch (dcb) {
	case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
	case DCB_CONNECTOR_TV_0     :
	case DCB_CONNECTOR_TV_1     :
	case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
951
952
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
953
954
955
956
	case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
	case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
	case DCB_CONNECTOR_LVDS     :
	case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
957
958
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
959
960
961
962
963
964
965
966
967
968
969
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
	case DCB_CONNECTOR_HDMI_1   : return DRM_MODE_CONNECTOR_HDMIA;
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

970
971
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
972
{
973
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
974
975
976
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_gpio *gpio = nouveau_gpio(drm->device);
	struct nouveau_display *disp = nouveau_display(dev);
977
978
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
979
	int type, ret = 0;
980
	bool dummy;
981

982
983
984
985
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
986
987
	}

988
989
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
990
		return ERR_PTR(-ENOMEM);
991

992
	connector = &nv_connector->base;
993
	INIT_WORK(&nv_connector->hpd_work, nouveau_connector_hotplug_work);
994
995
996
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
997
	nv_connector->dcb = olddcb_conn(dev, index);
998
999
1000
1001
1002
1003
1004
	if (nv_connector->dcb) {
		static const u8 hpd[16] = {
			0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
			0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
		};

		u32 entry = ROM16(nv_connector->dcb[0]);
1005
		if (olddcb_conntab(dev)[3] >= 4)
1006
1007
			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;

1008
1009
		ret = gpio->find(gpio, 0, hpd[ffs((entry & 0x07033000) >> 12)],
				 DCB_GPIO_UNUSED, &nv_connector->hpd);
1010
		nv_connector->hpd_func.func = nouveau_connector_hotplug;
1011
1012
		if (ret)
			nv_connector->hpd.func = DCB_GPIO_UNUSED;
1013
1014
1015
1016

		nv_connector->type = nv_connector->dcb[0];
		if (drm_conntype_from_dcb(nv_connector->type) ==
					  DRM_MODE_CONNECTOR_Unknown) {
1017
			NV_WARN(drm, "unknown connector type %02x\n",
1018
1019
1020
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1021

1022
1023
1024
1025
1026
		/* Gigabyte NX85T */
		if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
				nv_connector->type = DCB_CONNECTOR_DVI_I;
		}
1027

1028
1029
1030
1031
1032
1033
1034
		/* Gigabyte GV-NX86T512H */
		if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
				nv_connector->type = DCB_CONNECTOR_DVI_I;
		}
	} else {
		nv_connector->type = DCB_CONNECTOR_NONE;
1035
		nv_connector->hpd.func = DCB_GPIO_UNUSED;
1036
1037
1038
1039
1040
1041
	}

	/* no vbios data, or an unknown dcb connector type - attempt to
	 * figure out something suitable ourselves
	 */
	if (nv_connector->type == DCB_CONNECTOR_NONE) {
1042
1043
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1044
1045
1046
1047
1048
1049
1050
		u32 encoders = 0;
		int i;

		for (i = 0; i < dcbt->entries; i++) {
			if (dcbt->entry[i].connector == nv_connector->index)
				encoders |= (1 << dcbt->entry[i].type);
		}
1051

1052
1053
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1054
1055
1056
1057
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1058
1059
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1060
1061
1062
1063
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1064
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1065
1066
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1067
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1068
1069
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1070
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1071
1072
1073
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1074

1075
1076
1077
	type = drm_conntype_from_dcb(nv_connector->type);
	if (type == DRM_MODE_CONNECTOR_LVDS) {
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1078
		if (ret) {
1079
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1080
1081
			kfree(nv_connector);
			return ERR_PTR(ret);
1082
		}
1083
1084
1085
1086

		funcs = &nouveau_connector_funcs_lvds;
	} else {
		funcs = &nouveau_connector_funcs;
1087
1088
	}

1089
1090
1091
1092
1093
1094
1095
	/* defaults, will get overridden in detect() */
	connector->interlace_allowed = false;
	connector->doublescan_allowed = false;

	drm_connector_init(dev, connector, funcs, type);
	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);

1096
	/* Init DVI-I specific properties */
1097
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1098
		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1099

1100
	/* Add overscan compensation options to digital outputs */
1101
	if (disp->underscan_property &&
1102
1103
1104
1105
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1106
		drm_object_attach_property(&connector->base,
1107
1108
					      disp->underscan_property,
					      UNDERSCAN_OFF);
1109
		drm_object_attach_property(&connector->base,
1110
1111
					      disp->underscan_hborder_property,
					      0);
1112
		drm_object_attach_property(&connector->base,
1113
1114
1115
1116
					      disp->underscan_vborder_property,
					      0);
	}

1117
1118
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
1119
		drm_object_attach_property(&connector->base,
1120
1121
1122
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
1123
		drm_object_attach_property(&connector->base,
1124
1125
1126
					      disp->color_vibrance_property,
					      150);

1127
	switch (nv_connector->type) {
1128
	case DCB_CONNECTOR_VGA:
1129
		if (nv_device(drm->device)->card_type >= NV_50) {
1130
			drm_object_attach_property(&connector->base,
1131
1132
1133
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
1134
1135
1136
1137
1138
1139
1140
1141
1142
		/* fall-through */
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
		break;
	default:
		nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;

1143
		drm_object_attach_property(&connector->base,
1144
1145
				dev->mode_config.scaling_mode_property,
				nv_connector->scaling_mode);
1146
1147
		if (disp->dithering_mode) {
			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1148
			drm_object_attach_property(&connector->base,
1149
1150
1151
1152
1153
						disp->dithering_mode,
						nv_connector->dithering_mode);
		}
		if (disp->dithering_depth) {
			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1154
			drm_object_attach_property(&connector->base,
1155
1156
1157
						disp->dithering_depth,
						nv_connector->dithering_depth);
		}
1158
		break;
1159
1160
	}

1161
	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1162
1163
	if (nv_connector->hpd.func != DCB_GPIO_UNUSED)
		connector->polled = DRM_CONNECTOR_POLL_HPD;
1164

1165
	drm_sysfs_connector_add(connector);
1166
	return connector;
1167
}