| 1 | /* |
| 2 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| 3 | * Copyright (c) 2007, 2010 Intel Corporation |
| 4 | * Jesse Barnes <jesse.barnes@intel.com> |
| 5 | * |
| 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: |
| 12 | * |
| 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 |
| 15 | * Software. |
| 16 | * |
| 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. |
| 24 | */ |
| 25 | |
| 26 | #include <linux/slab.h> |
| 27 | #include <linux/i2c.h> |
| 28 | #include <linux/fb.h> |
| 29 | #include <drm/drm_edid.h> |
| 30 | #include <drm/drmP.h> |
| 31 | #include "intel_drv.h" |
| 32 | #include "i915_drv.h" |
| 33 | |
| 34 | /** |
| 35 | * intel_connector_update_modes - update connector from edid |
| 36 | * @connector: DRM connector device to use |
| 37 | * @edid: previously read EDID information |
| 38 | */ |
| 39 | int intel_connector_update_modes(struct drm_connector *connector, |
| 40 | struct edid *edid) |
| 41 | { |
| 42 | int ret; |
| 43 | |
| 44 | drm_mode_connector_update_edid_property(connector, edid); |
| 45 | ret = drm_add_edid_modes(connector, edid); |
| 46 | drm_edid_to_eld(connector, edid); |
| 47 | |
| 48 | return ret; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * intel_ddc_get_modes - get modelist from monitor |
| 53 | * @connector: DRM connector device to use |
| 54 | * @adapter: i2c adapter |
| 55 | * |
| 56 | * Fetch the EDID information from @connector using the DDC bus. |
| 57 | */ |
| 58 | int intel_ddc_get_modes(struct drm_connector *connector, |
| 59 | struct i2c_adapter *adapter) |
| 60 | { |
| 61 | struct edid *edid; |
| 62 | int ret; |
| 63 | |
| 64 | edid = drm_get_edid(connector, adapter); |
| 65 | if (!edid) |
| 66 | return 0; |
| 67 | |
| 68 | ret = intel_connector_update_modes(connector, edid); |
| 69 | kfree(edid); |
| 70 | |
| 71 | return ret; |
| 72 | } |
| 73 | |
| 74 | static const struct drm_prop_enum_list force_audio_names[] = { |
| 75 | { HDMI_AUDIO_OFF_DVI, "force-dvi" }, |
| 76 | { HDMI_AUDIO_OFF, "off" }, |
| 77 | { HDMI_AUDIO_AUTO, "auto" }, |
| 78 | { HDMI_AUDIO_ON, "on" }, |
| 79 | }; |
| 80 | |
| 81 | void |
| 82 | intel_attach_force_audio_property(struct drm_connector *connector) |
| 83 | { |
| 84 | struct drm_device *dev = connector->dev; |
| 85 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 86 | struct drm_property *prop; |
| 87 | |
| 88 | prop = dev_priv->force_audio_property; |
| 89 | if (prop == NULL) { |
| 90 | prop = drm_property_create_enum(dev, 0, |
| 91 | "audio", |
| 92 | force_audio_names, |
| 93 | ARRAY_SIZE(force_audio_names)); |
| 94 | if (prop == NULL) |
| 95 | return; |
| 96 | |
| 97 | dev_priv->force_audio_property = prop; |
| 98 | } |
| 99 | drm_object_attach_property(&connector->base, prop, 0); |
| 100 | } |
| 101 | |
| 102 | static const struct drm_prop_enum_list broadcast_rgb_names[] = { |
| 103 | { INTEL_BROADCAST_RGB_AUTO, "Automatic" }, |
| 104 | { INTEL_BROADCAST_RGB_FULL, "Full" }, |
| 105 | { INTEL_BROADCAST_RGB_LIMITED, "Limited 16:235" }, |
| 106 | }; |
| 107 | |
| 108 | void |
| 109 | intel_attach_broadcast_rgb_property(struct drm_connector *connector) |
| 110 | { |
| 111 | struct drm_device *dev = connector->dev; |
| 112 | struct drm_i915_private *dev_priv = dev->dev_private; |
| 113 | struct drm_property *prop; |
| 114 | |
| 115 | prop = dev_priv->broadcast_rgb_property; |
| 116 | if (prop == NULL) { |
| 117 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, |
| 118 | "Broadcast RGB", |
| 119 | broadcast_rgb_names, |
| 120 | ARRAY_SIZE(broadcast_rgb_names)); |
| 121 | if (prop == NULL) |
| 122 | return; |
| 123 | |
| 124 | dev_priv->broadcast_rgb_property = prop; |
| 125 | } |
| 126 | |
| 127 | drm_object_attach_property(&connector->base, prop, 0); |
| 128 | } |