nouveau_connector.c 35.3 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>
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#include <engine/disp.h>
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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;
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	struct drm_encoder *enc;
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	int i, id;

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

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		enc = drm_encoder_find(dev, id);
		if (!enc)
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			continue;
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		nv_encoder = nouveau_encoder(enc);
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		if (type == DCB_OUTPUT_ANY ||
		    (nv_encoder->dcb && 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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	nouveau_event_ref(NULL, &nv_connector->hpd);
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	kfree(nv_connector->edid);
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	drm_connector_unregister(connector);
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	drm_connector_cleanup(connector);
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	if (nv_connector->aux.transfer)
		drm_dp_aux_unregister(&nv_connector->aux);
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	kfree(connector);
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}

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static struct nouveau_encoder *
nouveau_connector_ddc_detect(struct drm_connector *connector)
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{
	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);
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	struct nouveau_encoder *nv_encoder;
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	struct drm_encoder *encoder;
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	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; nv_encoder = NULL, i < DRM_CONNECTOR_MAX_ENCODER; i++) {
		int id = connector->encoder_ids[i];
		if (id == 0)
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			break;

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		encoder = drm_encoder_find(dev, id);
		if (!encoder)
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			continue;
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		nv_encoder = nouveau_encoder(encoder);
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		if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
			int ret = nouveau_dp_detect(nv_encoder);
			if (ret == 0)
				break;
		} else
		if (nv_encoder->i2c) {
			if (nv_probe_i2c(nv_encoder->i2c, 0x50))
				break;
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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.
	 */
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	if (!nv_encoder && panel == 0)
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		gpio->set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);

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	return nv_encoder;
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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 ||
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		    ((nv_device(drm->device)->card_type == NV_10 ||
		      nv_device(drm->device)->card_type == NV_11) &&
		     (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);
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	if (ret < 0 && ret != -EACCES)
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		return conn_status;

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	nv_encoder = nouveau_connector_ddc_detect(connector);
	if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
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		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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				 connector->name);
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			goto detect_analog;
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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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			 connector->name);
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		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);
		}
	}

571
	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
572
573
		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
574
575
576
577
578

	return -EINVAL;
}

static struct drm_display_mode *
579
nouveau_connector_native_mode(struct drm_connector *connector)
580
{
581
	struct drm_connector_helper_funcs *helper = connector->helper_private;
582
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
583
584
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
585
586
587
	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

588
	list_for_each_entry(mode, &nv_connector->base.probed_modes, head) {
589
		mode->vrefresh = drm_mode_vrefresh(mode);
590
591
		if (helper->mode_valid(connector, mode) != MODE_OK ||
		    (mode->flags & DRM_MODE_FLAG_INTERLACE))
592
593
594
			continue;

		/* Use preferred mode if there is one.. */
595
		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
596
			NV_DEBUG(drm, "native mode from preferred\n");
597
598
599
			return drm_mode_duplicate(dev, mode);
		}

600
601
602
		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
		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;
	}

619
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
620
621
622
623
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
		      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;
}

680
681
682
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
683
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
684
685
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
686
	struct nvbios *bios = &drm->vbios;
687
688
689
690
691
692
693
	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;

694
695
696
697
698
699
700
	/* 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 */
701
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
702
		connector->display_info.bpc = 8;
703
		return;
704
705
706
	}

	connector->display_info.bpc = 6;
707
708
709
710
711
712
713
714
715
716
717
718

	/* 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 &&
719
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
720
721
722
723
724
725
726
727
728
		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;
}

729
730
731
732
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
733
	struct nouveau_drm *drm = nouveau_drm(dev);
734
735
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
736
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
737
738
	int ret = 0;

739
	/* destroy the native mode, the attached monitor could have changed.
740
	 */
741
	if (nv_connector->native_mode) {
742
743
744
745
746
747
		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);
748
	else
749
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
750
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
751
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
752
753
754
755
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
756
	}
757

758
759
760
761
762
763
	/* 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);

764
765
766
767
768
769
	/* 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 =
770
			nouveau_connector_native_mode(connector);
771
772
773
774
775
776
777
778
	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;
	}

779
780
781
	/* 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...
782
	 */
783
784
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
785

786
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
787
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
788

789
790
791
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
792
793
794
795
796
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

797
798
799
800
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
801
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
802
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
803
804

	if (dcb->location != DCB_LOC_ON_CHIP ||
805
	    nv_device(drm->device)->chipset >= 0x46)
806
		return 165000;
807
	else if (nv_device(drm->device)->chipset >= 0x40)
808
		return 155000;
809
	else if (nv_device(drm->device)->chipset >= 0x18)
810
811
812
813
814
		return 135000;
	else
		return 112000;
}

815
816
817
818
819
820
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;
821
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
822
823
824
825
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
826
	case DCB_OUTPUT_LVDS:
827
828
829
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
830
831
832
833
834
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
835
	case DCB_OUTPUT_TMDS:
836
837
838
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
839
		break;
840
	case DCB_OUTPUT_ANALOG:
841
842
843
844
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
845
	case DCB_OUTPUT_TV:
846
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
847
	case DCB_OUTPUT_DP:
848
849
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
850
		clock = clock * (connector->display_info.bpc * 3) / 10;
851
		break;
852
853
854
	default:
		BUG_ON(1);
		return MODE_BAD;
855
856
857
858
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
	}

	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
};

896
897
898
899
900
901
902
903
904
905
906
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
};
907

908
909
910
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
static void
nouveau_connector_dp_dpms(struct drm_connector *connector, int mode)
{
	struct nouveau_encoder *nv_encoder = NULL;

	if (connector->encoder)
		nv_encoder = nouveau_encoder(connector->encoder);
	if (nv_encoder && nv_encoder->dcb &&
	    nv_encoder->dcb->type == DCB_OUTPUT_DP) {
		if (mode == DRM_MODE_DPMS_ON) {
			u8 data = DP_SET_POWER_D0;
			nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
			usleep_range(1000, 2000);
		} else {
			u8 data = DP_SET_POWER_D3;
			nv_wraux(nv_encoder->i2c, DP_SET_POWER, &data, 1);
		}
	}

	drm_helper_connector_dpms(connector, mode);
}

static const struct drm_connector_funcs
nouveau_connector_funcs_dp = {
	.dpms = nouveau_connector_dp_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
};

942
943
944
945
static void
nouveau_connector_hotplug_work(struct work_struct *work)
{
	struct nouveau_connector *nv_connector =
946
		container_of(work, typeof(*nv_connector), work);
947
	struct drm_connector *connector = &nv_connector->base;
948
949
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
	const char *name = connector->name;
950

951
952
953
	if (nv_connector->status & NVKM_HPD_IRQ) {
	} else {
		bool plugged = (nv_connector->status != NVKM_HPD_UNPLUG);
954

955
		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
956

957
958
959
960
961
962
963
964
		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(connector->dev);
	}

	nouveau_event_get(nv_connector->hpd);
965
966
967
}

static int
968
nouveau_connector_hotplug(void *data, u32 type, int index)
969
{
970
	struct nouveau_connector *nv_connector = data;
971
972
973
	nv_connector->status = type;
	schedule_work(&nv_connector->work);
	return NVKM_EVENT_DROP;
974
975
}

976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
static ssize_t
nouveau_connector_aux_xfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
{
	struct nouveau_connector *nv_connector =
		container_of(aux, typeof(*nv_connector), aux);
	struct nouveau_encoder *nv_encoder;
	struct nouveau_i2c_port *port;
	int ret;

	nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
	if (!nv_encoder || !(port = nv_encoder->i2c))
		return -ENODEV;
	if (WARN_ON(msg->size > 16))
		return -E2BIG;
	if (msg->size == 0)
		return msg->size;

	ret = nouveau_i2c(port)->acquire(port, 0);
	if (ret)
		return ret;

	ret = port->func->aux(port, false, msg->request, msg->address,
			      msg->buffer, msg->size);
	nouveau_i2c(port)->release(port);
	if (ret >= 0) {
		msg->reply = ret;
		return msg->size;
	}

	return ret;
}

1008
1009
1010
1011
1012
1013
1014
1015
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;
1016
1017
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
1018
1019
1020
1021
	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;
1022
1023
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
1024
1025
1026
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
1027
1028
	case DCB_CONNECTOR_HDMI_1   :
	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1029
1030
1031
1032
1033
1034
1035
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

1036
1037
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
1038
{
1039
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1040
1041
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_display *disp = nouveau_display(dev);
1042
	struct nouveau_connector *nv_connector = NULL;
1043
	struct nouveau_disp *pdisp = nouveau_disp(drm->device);
1044
	struct drm_connector *connector;
1045
	int type, ret = 0;
1046
	bool dummy;
1047

1048
1049
1050
1051
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
1052
1053
	}

1054
1055
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
1056
		return ERR_PTR(-ENOMEM);
1057

1058
	connector = &nv_connector->base;
1059
1060
1061
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
1062
	nv_connector->dcb = olddcb_conn(dev, index);
1063
1064
	if (nv_connector->dcb) {
		u32 entry = ROM16(nv_connector->dcb[0]);
1065
		if (olddcb_conntab(dev)[3] >= 4)
1066
1067
1068
1069
1070
			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;

		nv_connector->type = nv_connector->dcb[0];
		if (drm_conntype_from_dcb(nv_connector->type) ==
					  DRM_MODE_CONNECTOR_Unknown) {
1071
			NV_WARN(drm, "unknown connector type %02x\n",
1072
1073
1074
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1075

1076
1077
1078
1079
1080
		/* 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;
		}
1081

1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
		/* 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;
	}

	/* no vbios data, or an unknown dcb connector type - attempt to
	 * figure out something suitable ourselves
	 */
	if (nv_connector->type == DCB_CONNECTOR_NONE) {
1095
1096
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1097
1098
1099
1100
1101
1102
1103
		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);
		}
1104

1105
1106
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1107
1108
1109
1110
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1111
1112
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1113
1114
1115
1116
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1117
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1118
1119
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1120
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1121
1122
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1123
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1124
1125
1126
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1127

1128
1129
	switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
	case DRM_MODE_CONNECTOR_LVDS:
1130
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1131
		if (ret) {
1132
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1133
1134
			kfree(nv_connector);
			return ERR_PTR(ret);
1135
		}
1136
1137

		funcs = &nouveau_connector_funcs_lvds;
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
		break;
	case DRM_MODE_CONNECTOR_DisplayPort:
	case DRM_MODE_CONNECTOR_eDP:
		nv_connector->aux.dev = dev->dev;
		nv_connector->aux.transfer = nouveau_connector_aux_xfer;
		ret = drm_dp_aux_register(&nv_connector->aux);
		if (ret) {
			NV_ERROR(drm, "failed to register aux channel\n");
			kfree(nv_connector);
			return ERR_PTR(ret);
		}

1150
		funcs = &nouveau_connector_funcs_dp;
1151
1152
1153
1154
		break;
	default:
		funcs = &nouveau_connector_funcs;
		break;
1155
1156
	}

1157
1158
1159
1160
1161
1162
1163
	/* 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);

1164
	/* Init DVI-I specific properties */
1165
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1166
		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1167

1168
	/* Add overscan compensation options to digital outputs */
1169
	if (disp->underscan_property &&
1170
1171
1172
1173
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1174
		drm_object_attach_property(&connector->base,
1175
1176
					      disp->underscan_property,
					      UNDERSCAN_OFF);
1177
		drm_object_attach_property(&connector->base,
1178
1179
					      disp->underscan_hborder_property,
					      0);
1180
		drm_object_attach_property(&connector->base,
1181
1182
1183
1184
					      disp->underscan_vborder_property,
					      0);
	}

1185
1186
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
1187
		drm_object_attach_property(&connector->base,
1188
1189
1190
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
1191
		drm_object_attach_property(&connector->base,
1192
1193
1194
					      disp->color_vibrance_property,
					      150);

1195
	switch (nv_connector->type) {
1196
	case DCB_CONNECTOR_VGA:
1197
		if (nv_device(drm->device)->card_type >= NV_50) {
1198
			drm_object_attach_property(&connector->base,
1199
1200
1201
					dev->mode_config.scaling_mode_property,
					nv_connector->scaling_mode);
		}
1202
1203
1204
1205
1206
1207
1208
1209
1210
		/* 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;

1211
		drm_object_attach_property(&connector->base,
1212
1213
				dev->mode_config.scaling_mode_property,
				nv_connector->scaling_mode);
1214
1215
		if (disp->dithering_mode) {
			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1216
			drm_object_attach_property(&connector->base,
1217
1218
1219
1220
1221
						disp->dithering_mode,
						nv_connector->dithering_mode);
		}
		if (disp->dithering_depth) {
			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
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