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2330 Serge 1
/*
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 * Copyright (c) 2007 Dave Airlie 
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 * Copyright (c) 2007, 2010 Intel Corporation
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 *   Jesse Barnes 
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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 * DEALINGS IN THE SOFTWARE.
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 */
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#include 
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#include 
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#include 
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#include "drmP.h"
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#include "intel_drv.h"
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#include "i915_drv.h"
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/**
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 * intel_ddc_probe
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 *
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 */
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bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus)
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{
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	struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
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	u8 out_buf[] = { 0x0, 0x0};
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	u8 buf[2];
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	struct i2c_msg msgs[] = {
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		{
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			.addr = 0x50,
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			.flags = 0,
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			.len = 1,
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			.buf = out_buf,
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		},
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		{
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			.addr = 0x50,
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			.flags = I2C_M_RD,
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			.len = 1,
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			.buf = buf,
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		}
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	};
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	return i2c_transfer(&dev_priv->gmbus[ddc_bus].adapter, msgs, 2) == 2;
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}
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/**
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 * intel_ddc_get_modes - get modelist from monitor
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 * @connector: DRM connector device to use
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 * @adapter: i2c adapter
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 *
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 * Fetch the EDID information from @connector using the DDC bus.
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 */
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int intel_ddc_get_modes(struct drm_connector *connector,
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			struct i2c_adapter *adapter)
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{
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	struct edid *edid;
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	int ret = 0;
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	edid = drm_get_edid(connector, adapter);
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	if (edid) {
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		drm_mode_connector_update_edid_property(connector, edid);
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		ret = drm_add_edid_modes(connector, edid);
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		connector->display_info.raw_edid = NULL;
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		kfree(edid);
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	}
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	return ret;
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}
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static const char *force_audio_names[] = {
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	"off",
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	"auto",
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	"on",
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};
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void
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intel_attach_force_audio_property(struct drm_connector *connector)
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{
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	struct drm_device *dev = connector->dev;
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	struct drm_i915_private *dev_priv = dev->dev_private;
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	struct drm_property *prop;
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	int i;
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#if 0
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	prop = dev_priv->force_audio_property;
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	if (prop == NULL) {
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		prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
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					   "audio",
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					   ARRAY_SIZE(force_audio_names));
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		if (prop == NULL)
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			return;
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		for (i = 0; i < ARRAY_SIZE(force_audio_names); i++)
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			drm_property_add_enum(prop, i, i-1, force_audio_names[i]);
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		dev_priv->force_audio_property = prop;
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	}
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	drm_connector_attach_property(connector, prop, 0);
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#endif
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}
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static const char *broadcast_rgb_names[] = {
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	"Full",
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	"Limited 16:235",
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};
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void
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intel_attach_broadcast_rgb_property(struct drm_connector *connector)
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{
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	struct drm_device *dev = connector->dev;
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	struct drm_i915_private *dev_priv = dev->dev_private;
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	struct drm_property *prop;
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	int i;
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#if 0
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	prop = dev_priv->broadcast_rgb_property;
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	if (prop == NULL) {
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		prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
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					   "Broadcast RGB",
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					   ARRAY_SIZE(broadcast_rgb_names));
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		if (prop == NULL)
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			return;
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		for (i = 0; i < ARRAY_SIZE(broadcast_rgb_names); i++)
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			drm_property_add_enum(prop, i, i, broadcast_rgb_names[i]);
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		dev_priv->broadcast_rgb_property = prop;
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	}
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	drm_connector_attach_property(connector, prop, 0);
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#endif
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}