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 * $FreeBSD: head/sys/dev/drm2/i915/intel_modes.c 249041 2013-04-03 08:27:35Z dumbbell $ 26 */ 27 28 #include <drm/drmP.h> 29 #include <drm/drm_edid.h> 30 #include "intel_drv.h" 31 #include "i915_drv.h" 32 #include <bus/iicbus/iiconf.h> 33 34 /** 35 * intel_ddc_probe 36 * 37 */ 38 bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus) 39 { 40 struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private; 41 u8 out_buf[] = { 0x0, 0x0}; 42 u8 buf[2]; 43 struct iic_msg msgs[] = { 44 { 45 .slave = DDC_ADDR << 1, 46 .flags = IIC_M_WR, 47 .len = 1, 48 .buf = out_buf, 49 }, 50 { 51 .slave = DDC_ADDR << 1, 52 .flags = IIC_M_RD, 53 .len = 1, 54 .buf = buf, 55 } 56 }; 57 58 return (iicbus_transfer(dev_priv->gmbus[ddc_bus], msgs, 2) 59 == 0/* XXXKIB 2*/); 60 } 61 62 /** 63 * intel_ddc_get_modes - get modelist from monitor 64 * @connector: DRM connector device to use 65 * @adapter: i2c adapter 66 * 67 * Fetch the EDID information from @connector using the DDC bus. 68 */ 69 int 70 intel_ddc_get_modes(struct drm_connector *connector, device_t adapter) 71 { 72 struct edid *edid; 73 int ret = 0; 74 75 edid = drm_get_edid(connector, adapter); 76 if (edid) { 77 drm_mode_connector_update_edid_property(connector, edid); 78 ret = drm_add_edid_modes(connector, edid); 79 drm_edid_to_eld(connector, edid); 80 connector->display_info.raw_edid = NULL; 81 drm_free(edid, DRM_MEM_KMS); 82 } 83 84 return ret; 85 } 86 87 static const struct drm_prop_enum_list force_audio_names[] = { 88 { HDMI_AUDIO_OFF_DVI, "force-dvi" }, 89 { HDMI_AUDIO_OFF, "off" }, 90 { HDMI_AUDIO_AUTO, "auto" }, 91 { HDMI_AUDIO_ON, "on" }, 92 }; 93 94 void 95 intel_attach_force_audio_property(struct drm_connector *connector) 96 { 97 struct drm_device *dev = connector->dev; 98 struct drm_i915_private *dev_priv = dev->dev_private; 99 struct drm_property *prop; 100 101 prop = dev_priv->force_audio_property; 102 if (prop == NULL) { 103 prop = drm_property_create_enum(dev, 0, 104 "audio", 105 force_audio_names, 106 DRM_ARRAY_SIZE(force_audio_names)); 107 if (prop == NULL) 108 return; 109 110 dev_priv->force_audio_property = prop; 111 } 112 drm_connector_attach_property(connector, prop, 0); 113 } 114 115 static const struct drm_prop_enum_list broadcast_rgb_names[] = { 116 { 0, "Full" }, 117 { 1, "Limited 16:235" }, 118 }; 119 120 void 121 intel_attach_broadcast_rgb_property(struct drm_connector *connector) 122 { 123 struct drm_device *dev = connector->dev; 124 struct drm_i915_private *dev_priv = dev->dev_private; 125 struct drm_property *prop; 126 127 prop = dev_priv->broadcast_rgb_property; 128 if (prop == NULL) { 129 prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, 130 "Broadcast RGB", 131 broadcast_rgb_names, 132 DRM_ARRAY_SIZE(broadcast_rgb_names)); 133 if (prop == NULL) 134 return; 135 136 dev_priv->broadcast_rgb_property = prop; 137 } 138 139 drm_connector_attach_property(connector, prop, 0); 140 } 141