nouveau_connector.c 35.9 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 <nvif/event.h>

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

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

MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
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int nouveau_duallink = 1;
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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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	nvif_notify_fini(&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 = nvkm_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 (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
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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 (drm->device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
		    (drm->device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
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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);
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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:
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			/* We allow 'None' for EDID modes, even on a fixed
			 * panel (some exist with support for lower refresh
			 * rates, which people might want to use for power
			 * saving purposes).
			 *
			 * Non-EDID modes will force the use of GPU scaling
			 * to the native mode regardless of this setting.
			 */
			switch (nv_connector->type) {
			case DCB_CONNECTOR_LVDS:
			case DCB_CONNECTOR_LVDS_SPWG:
			case DCB_CONNECTOR_eDP:
				/* ... except prior to G80, where the code
				 * doesn't support such things.
				 */
				if (disp->disp.oclass < NV50_DISP)
					return -EINVAL;
				break;
			default:
				break;
			}
			break;
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		case DRM_MODE_SCALE_FULLSCREEN:
		case DRM_MODE_SCALE_CENTER:
		case DRM_MODE_SCALE_ASPECT:
			break;
		default:
			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);
		}
	}

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	if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
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		return get_slave_funcs(encoder)->set_property(
			encoder, connector, property, value);
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	return -EINVAL;
}

static struct drm_display_mode *
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nouveau_connector_native_mode(struct drm_connector *connector)
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{
595
	struct drm_connector_helper_funcs *helper = connector->helper_private;
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	struct nouveau_drm *drm = nouveau_drm(connector->dev);
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	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct drm_device *dev = connector->dev;
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	struct drm_display_mode *mode, *largest = NULL;
	int high_w = 0, high_h = 0, high_v = 0;

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

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

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		/* Otherwise, take the resolution with the largest width, then
		 * height, then vertical refresh
		 */
617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632
		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;
	}

633
	NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
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
		      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 &&
675 676 677
		    mode->vdisplay <= native->vdisplay &&
		    (mode->hdisplay != native->hdisplay ||
		     mode->vdisplay != native->vdisplay)) {
678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
			m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
					 drm_mode_vrefresh(native), false,
					 false, false);
			if (!m)
				continue;

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

		mode++;
	}

	return modes;
}

694 695 696
static void
nouveau_connector_detect_depth(struct drm_connector *connector)
{
697
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
698 699
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
700
	struct nvbios *bios = &drm->vbios;
701 702 703 704 705 706 707
	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;

708 709 710 711 712 713 714
	/* 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 */
715
	if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
716
		connector->display_info.bpc = 8;
717
		return;
718 719 720
	}

	connector->display_info.bpc = 6;
721 722 723 724 725 726 727 728 729 730 731 732

	/* 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 &&
733
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
734 735 736 737 738 739 740 741 742
		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;
}

743 744 745 746
static int
nouveau_connector_get_modes(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
747
	struct nouveau_drm *drm = nouveau_drm(dev);
748 749
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
750
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
751 752
	int ret = 0;

753
	/* destroy the native mode, the attached monitor could have changed.
754
	 */
755
	if (nv_connector->native_mode) {
756 757 758 759 760 761
		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);
762
	else
763
	if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
764
	    (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
765
	     drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
766 767 768 769
		struct drm_display_mode mode;

		nouveau_bios_fp_mode(dev, &mode);
		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
770
	}
771

772 773 774 775 776 777
	/* 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);

778 779 780 781 782 783
	/* 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 =
784
			nouveau_connector_native_mode(connector);
785 786 787 788 789 790 791 792
	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;
	}

793 794 795
	/* 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...
796
	 */
797 798
	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
		nouveau_connector_detect_depth(connector);
799

800
	if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
801
		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
802

803 804 805
	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
	    nv_connector->type == DCB_CONNECTOR_eDP)
806 807 808 809 810
		ret += nouveau_connector_scaler_modes_add(connector);

	return ret;
}

811 812 813 814
static unsigned
get_tmds_link_bandwidth(struct drm_connector *connector)
{
	struct nouveau_connector *nv_connector = nouveau_connector(connector);
815
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
816
	struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
817 818

	if (dcb->location != DCB_LOC_ON_CHIP ||
819
	    drm->device.info.chipset >= 0x46)
820
		return 165000;
821
	else if (drm->device.info.chipset >= 0x40)
822
		return 155000;
823
	else if (drm->device.info.chipset >= 0x18)
824 825 826 827 828
		return 135000;
	else
		return 112000;
}

829 830 831 832 833 834
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;
835
	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
836 837 838 839
	unsigned min_clock = 25000, max_clock = min_clock;
	unsigned clock = mode->clock;

	switch (nv_encoder->dcb->type) {
840
	case DCB_OUTPUT_LVDS:
841 842 843
		if (nv_connector->native_mode &&
		    (mode->hdisplay > nv_connector->native_mode->hdisplay ||
		     mode->vdisplay > nv_connector->native_mode->vdisplay))
844 845 846 847 848
			return MODE_PANEL;

		min_clock = 0;
		max_clock = 400000;
		break;
849
	case DCB_OUTPUT_TMDS:
850 851 852
		max_clock = get_tmds_link_bandwidth(connector);
		if (nouveau_duallink && nv_encoder->dcb->duallink_possible)
			max_clock *= 2;
853
		break;
854
	case DCB_OUTPUT_ANALOG:
855 856 857 858
		max_clock = nv_encoder->dcb->crtconf.maxfreq;
		if (!max_clock)
			max_clock = 350000;
		break;
859
	case DCB_OUTPUT_TV:
860
		return get_slave_funcs(encoder)->mode_valid(encoder, mode);
861
	case DCB_OUTPUT_DP:
862 863
		max_clock  = nv_encoder->dp.link_nr;
		max_clock *= nv_encoder->dp.link_bw;
864
		clock = clock * (connector->display_info.bpc * 3) / 10;
865
		break;
866 867 868
	default:
		BUG_ON(1);
		return MODE_BAD;
869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909
	}

	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
};

910 911 912 913 914 915 916 917 918 919 920
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
};
921

922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955
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
};

956
static int
957
nouveau_connector_hotplug(struct nvif_notify *notify)
958 959
{
	struct nouveau_connector *nv_connector =
960
		container_of(notify, typeof(*nv_connector), hpd);
961
	struct drm_connector *connector = &nv_connector->base;
962
	struct nouveau_drm *drm = nouveau_drm(connector->dev);
963
	const struct nvif_notify_conn_rep_v0 *rep = notify->data;
964
	const char *name = connector->name;
965

966
	if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
967
	} else {
968
		bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
969

970
		NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
971

972 973 974 975 976 977 978
		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);
	}

979
	return NVIF_NOTIFY_KEEP;
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 1008 1009 1010 1011 1012 1013
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;
}

1014 1015 1016 1017 1018 1019 1020 1021
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;
1022 1023
	case DCB_CONNECTOR_DMS59_0  :
	case DCB_CONNECTOR_DMS59_1  :
1024 1025 1026 1027
	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;
1028 1029
	case DCB_CONNECTOR_DMS59_DP0:
	case DCB_CONNECTOR_DMS59_DP1:
1030 1031 1032
	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
	case DCB_CONNECTOR_HDMI_0   :
1033 1034
	case DCB_CONNECTOR_HDMI_1   :
	case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1035 1036 1037 1038 1039 1040 1041
	default:
		break;
	}

	return DRM_MODE_CONNECTOR_Unknown;
}

1042 1043
struct drm_connector *
nouveau_connector_create(struct drm_device *dev, int index)
1044
{
1045
	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1046 1047
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nouveau_display *disp = nouveau_display(dev);
1048 1049
	struct nouveau_connector *nv_connector = NULL;
	struct drm_connector *connector;
1050
	int type, ret = 0;
1051
	bool dummy;
1052

1053 1054 1055 1056
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
		nv_connector = nouveau_connector(connector);
		if (nv_connector->index == index)
			return connector;
1057 1058
	}

1059 1060
	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
	if (!nv_connector)
1061
		return ERR_PTR(-ENOMEM);
1062

1063
	connector = &nv_connector->base;
1064 1065 1066
	nv_connector->index = index;

	/* attempt to parse vbios connector type and hotplug gpio */
1067
	nv_connector->dcb = olddcb_conn(dev, index);
1068 1069
	if (nv_connector->dcb) {
		u32 entry = ROM16(nv_connector->dcb[0]);
1070
		if (olddcb_conntab(dev)[3] >= 4)
1071 1072 1073 1074 1075
			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) {
1076
			NV_WARN(drm, "unknown connector type %02x\n",
1077 1078 1079
				nv_connector->type);
			nv_connector->type = DCB_CONNECTOR_NONE;
		}
1080

1081 1082 1083 1084 1085
		/* 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;
		}
1086

1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099
		/* 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) {
1100 1101
		struct nouveau_drm *drm = nouveau_drm(dev);
		struct dcb_table *dcbt = &drm->vbios.dcb;
1102 1103 1104 1105 1106 1107 1108
		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);
		}
1109

1110 1111
		if (encoders & (1 << DCB_OUTPUT_DP)) {
			if (encoders & (1 << DCB_OUTPUT_TMDS))
1112 1113 1114 1115
				nv_connector->type = DCB_CONNECTOR_DP;
			else
				nv_connector->type = DCB_CONNECTOR_eDP;
		} else
1116 1117
		if (encoders & (1 << DCB_OUTPUT_TMDS)) {
			if (encoders & (1 << DCB_OUTPUT_ANALOG))
1118 1119 1120 1121
				nv_connector->type = DCB_CONNECTOR_DVI_I;
			else
				nv_connector->type = DCB_CONNECTOR_DVI_D;
		} else
1122
		if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1123 1124
			nv_connector->type = DCB_CONNECTOR_VGA;
		} else
1125
		if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1126 1127
			nv_connector->type = DCB_CONNECTOR_LVDS;
		} else
1128
		if (encoders & (1 << DCB_OUTPUT_TV)) {
1129 1130 1131
			nv_connector->type = DCB_CONNECTOR_TV_0;
		}
	}
1132

1133 1134
	switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
	case DRM_MODE_CONNECTOR_LVDS:
1135
		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1136
		if (ret) {
1137
			NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1138 1139
			kfree(nv_connector);
			return ERR_PTR(ret);
1140
		}
1141 1142

		funcs = &nouveau_connector_funcs_lvds;
1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154
		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);
		}

1155
		funcs = &nouveau_connector_funcs_dp;
1156 1157 1158 1159
		break;
	default:
		funcs = &nouveau_connector_funcs;
		break;
1160 1161
	}

1162 1163 1164 1165 1166 1167 1168
	/* 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);

1169
	/* Init DVI-I specific properties */
1170
	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
1171
		drm_object_attach_property(&connector->base, dev->mode_config.dvi_i_subconnector_property, 0);
1172

1173
	/* Add overscan compensation options to digital outputs */
1174
	if (disp->underscan_property &&
1175 1176 1177 1178
	    (type == DRM_MODE_CONNECTOR_DVID ||
	     type == DRM_MODE_CONNECTOR_DVII ||
	     type == DRM_MODE_CONNECTOR_HDMIA ||
	     type == DRM_MODE_CONNECTOR_DisplayPort)) {
1179
		drm_object_attach_property(&connector->base,
1180 1181
					      disp->underscan_property,
					      UNDERSCAN_OFF);
1182
		drm_object_attach_property(&connector->base,
1183 1184
					      disp->underscan_hborder_property,
					      0);
1185
		drm_object_attach_property(&connector->base,
1186 1187 1188 1189
					      disp->underscan_vborder_property,
					      0);
	}

1190 1191
	/* Add hue and saturation options */
	if (disp->vibrant_hue_property)
1192
		drm_object_attach_property(&connector->base,
1193 1194 1195
					      disp->vibrant_hue_property,
					      90);
	if (disp->color_vibrance_property)
1196
		drm_object_attach_property(&connector->base,
1197 1198 1199
					      disp->color_vibrance_property,
					      150);

1200
	/* default scaling mode */
1201
	switch (nv_connector->type) {
1202 1203 1204
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
1205
	case DCB_CONNECTOR_VGA:
1206 1207 1208 1209
		nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
		break;
	default:
		nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1210 1211
		break;
	}
1212

1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
	/* scaling mode property */
	switch (nv_connector->type) {
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
		break;
	case DCB_CONNECTOR_VGA:
		if (disp->disp.oclass < NV50_DISP)
			break; /* can only scale on DFPs */
		/* fall-through */
	default:
		drm_object_attach_property(&connector->base, dev->mode_config.
					   scaling_mode_property,
					   nv_connector->scaling_mode);
		break;
	}

	/* dithering properties */
	switch (nv_connector->type) {
	case DCB_CONNECTOR_TV_0:
	case DCB_CONNECTOR_TV_1:
	case DCB_CONNECTOR_TV_3:
	case DCB_CONNECTOR_VGA:
		break;
	default:
1238
		if (disp->dithering_mode) {
1239
			drm_object_attach_property(&connector->base,
1240 1241 1242 1243
						   disp->dithering_mode,
						   nv_connector->
						   dithering_mode);
			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1244 1245
		}
		if (disp->dithering_depth) {
1246
			drm_object_attach_property(&connector->base,
1247 1248 1249 1250
						   disp->dithering_depth,
						   nv_connector->
						   dithering_depth);
			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
1251
		}
1252
		break;
1253 1254
	}

1255 1256
	ret = nvif_notify_init(&disp->disp, NULL, nouveau_connector_hotplug,
				true, NV04_DISP_NTFY_CONN,
1257 1258 1259 1260 1261 1262 1263
			       &(struct nvif_notify_conn_req_v0) {
				.mask = NVIF_NOTIFY_CONN_V0_ANY,
				.conn = index,
			       },
			       sizeof(struct nvif_notify_conn_req_v0),
			       sizeof(struct nvif_notify_conn_rep_v0),
			       &nv_connector->hpd);
1264 1265 1266
	if (ret)
		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
	else
1267
		connector->polled = DRM_CONNECTOR_POLL_HPD;
1268

1269
	drm_connector_register(connector);
1270
	return connector;
1271
}