intel_modes.c

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/*
 * Copyright (c) 2007 Dave Airlie <[email protected]>
 * Copyright (c) 2007, 2010 Intel Corporation
 *   Jesse Barnes <[email protected]>
 *
 * 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 <linux/fb.h>
#include <drm/drm_edid.h>
#include <drm/drmP.h>
#include <drm/drm_edid.h>
#include "intel_drv.h"
#include "i915_drv.h"

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);
    kfree(edid);

    return ret;
}

int intel_ddc_get_modes(struct drm_connector *connector,
            struct i2c_adapter *adapter)
{
    struct edid *edid;

    edid = drm_get_edid(connector, adapter);
    if (!edid)
        return 0;

    return intel_connector_update_modes(connector, edid);
}

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 = dev->dev_private;
    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_connector_attach_property(connector, prop, 0);
}

static const struct drm_prop_enum_list broadcast_rgb_names[] = {
    { 0, "Full" },
    { 1, "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 = dev->dev_private;
    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_connector_attach_property(connector, prop, 0);
}