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/*
* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
* Copyright (c) 2007, 2010 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include <linux/slab.h>
#include <linux/i2c.h>
#include <drm/drm_edid.h>
#include <drm/drmP.h>
#include "intel_drv.h"
#include "i915_drv.h"
/**
* intel_connector_update_modes - update connector from edid
* @connector: DRM connector device to use
* @edid: previously read EDID information
*/
int intel_connector_update_modes(struct drm_connector *connector,
struct edid *edid)
{
int ret;
drm_mode_connector_update_edid_property(connector, edid);
ret = drm_add_edid_modes(connector, edid);
drm_edid_to_eld(connector, edid);
return ret;
}
/**
* intel_ddc_get_modes - get modelist from monitor
* @connector: DRM connector device to use
* @adapter: i2c adapter
*
* Fetch the EDID information from @connector using the DDC bus.
*/
int intel_ddc_get_modes(struct drm_connector *connector,
struct i2c_adapter *adapter)
{
struct edid *edid;
int ret;
edid = drm_get_edid(connector, adapter);
if (!edid)
return 0;
ret = intel_connector_update_modes(connector, edid);
kfree(edid);
return ret;
}
static const struct drm_prop_enum_list force_audio_names[] = {
{ HDMI_AUDIO_OFF_DVI, "force-dvi" },
{ HDMI_AUDIO_OFF, "off" },
{ HDMI_AUDIO_AUTO, "auto" },
{ HDMI_AUDIO_ON, "on" },
};
void
intel_attach_force_audio_property(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_property *prop;
prop = dev_priv->force_audio_property;
if (prop == NULL) {
prop = drm_property_create_enum(dev, 0,
"audio",
force_audio_names,
ARRAY_SIZE(force_audio_names));
if (prop == NULL)
return;
dev_priv->force_audio_property = prop;
}
drm_object_attach_property(&connector->base, prop, 0);
}
static const struct drm_prop_enum_list broadcast_rgb_names[] = {
{ INTEL_BROADCAST_RGB_AUTO, "Automatic" },
{ INTEL_BROADCAST_RGB_FULL, "Full" },
{ INTEL_BROADCAST_RGB_LIMITED, "Limited 16:235" },
};
void
intel_attach_broadcast_rgb_property(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct drm_property *prop;
prop = dev_priv->broadcast_rgb_property;
if (prop == NULL) {
prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
"Broadcast RGB",
broadcast_rgb_names,
ARRAY_SIZE(broadcast_rgb_names));
if (prop == NULL)
return;
dev_priv->broadcast_rgb_property = prop;
}
drm_object_attach_property(&connector->base, prop, 0);
}
void
intel_attach_aspect_ratio_property(struct drm_connector *connector)
{
if (!drm_mode_create_aspect_ratio_property(connector->dev))
drm_object_attach_property(&connector->base,
connector->dev->mode_config.aspect_ratio_property,
DRM_MODE_PICTURE_ASPECT_NONE);
}
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