2 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
3 * Copyright (c) 2007, 2010 Intel Corporation
4 * Jesse Barnes <jesse.barnes@intel.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
26 #include <linux/slab.h>
27 #include <linux/i2c.h>
28 #include <drm/drm_edid.h>
30 #include "intel_drv.h"
33 static void intel_connector_update_eld_conn_type(struct drm_connector
*connector
)
37 if (connector
->connector_type
== DRM_MODE_CONNECTOR_DisplayPort
||
38 connector
->connector_type
== DRM_MODE_CONNECTOR_eDP
) {
39 conn_type
= DRM_ELD_CONN_TYPE_DP
;
41 conn_type
= DRM_ELD_CONN_TYPE_HDMI
;
44 connector
->eld
[DRM_ELD_SAD_COUNT_CONN_TYPE
] &= ~DRM_ELD_CONN_TYPE_MASK
;
45 connector
->eld
[DRM_ELD_SAD_COUNT_CONN_TYPE
] |= conn_type
;
49 * intel_connector_update_modes - update connector from edid
50 * @connector: DRM connector device to use
51 * @edid: previously read EDID information
53 int intel_connector_update_modes(struct drm_connector
*connector
,
58 drm_mode_connector_update_edid_property(connector
, edid
);
59 ret
= drm_add_edid_modes(connector
, edid
);
60 drm_edid_to_eld(connector
, edid
);
62 intel_connector_update_eld_conn_type(connector
);
68 * intel_ddc_get_modes - get modelist from monitor
69 * @connector: DRM connector device to use
70 * @adapter: i2c adapter
72 * Fetch the EDID information from @connector using the DDC bus.
74 int intel_ddc_get_modes(struct drm_connector
*connector
,
75 struct i2c_adapter
*adapter
)
80 edid
= drm_get_edid(connector
, adapter
);
84 ret
= intel_connector_update_modes(connector
, edid
);
90 static const struct drm_prop_enum_list force_audio_names
[] = {
91 { HDMI_AUDIO_OFF_DVI
, "force-dvi" },
92 { HDMI_AUDIO_OFF
, "off" },
93 { HDMI_AUDIO_AUTO
, "auto" },
94 { HDMI_AUDIO_ON
, "on" },
98 intel_attach_force_audio_property(struct drm_connector
*connector
)
100 struct drm_device
*dev
= connector
->dev
;
101 struct drm_i915_private
*dev_priv
= to_i915(dev
);
102 struct drm_property
*prop
;
104 prop
= dev_priv
->force_audio_property
;
106 prop
= drm_property_create_enum(dev
, 0,
109 ARRAY_SIZE(force_audio_names
));
113 dev_priv
->force_audio_property
= prop
;
115 drm_object_attach_property(&connector
->base
, prop
, 0);
118 static const struct drm_prop_enum_list broadcast_rgb_names
[] = {
119 { INTEL_BROADCAST_RGB_AUTO
, "Automatic" },
120 { INTEL_BROADCAST_RGB_FULL
, "Full" },
121 { INTEL_BROADCAST_RGB_LIMITED
, "Limited 16:235" },
125 intel_attach_broadcast_rgb_property(struct drm_connector
*connector
)
127 struct drm_device
*dev
= connector
->dev
;
128 struct drm_i915_private
*dev_priv
= to_i915(dev
);
129 struct drm_property
*prop
;
131 prop
= dev_priv
->broadcast_rgb_property
;
133 prop
= drm_property_create_enum(dev
, DRM_MODE_PROP_ENUM
,
136 ARRAY_SIZE(broadcast_rgb_names
));
140 dev_priv
->broadcast_rgb_property
= prop
;
143 drm_object_attach_property(&connector
->base
, prop
, 0);
147 intel_attach_aspect_ratio_property(struct drm_connector
*connector
)
149 if (!drm_mode_create_aspect_ratio_property(connector
->dev
))
150 drm_object_attach_property(&connector
->base
,
151 connector
->dev
->mode_config
.aspect_ratio_property
,
152 DRM_MODE_PICTURE_ASPECT_NONE
);