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