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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 "drmP.h"
30#include "intel_drv.h"
31#include "i915_drv.h"
32
33/**
34 * intel_ddc_probe
35 *
36 */
37bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus)
38{
39 struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
40 u8 out_buf[] = { 0x0, 0x0};
41 u8 buf[2];
42 struct i2c_msg msgs[] = {
43 {
44 .addr = 0x50,
45 .flags = 0,
46 .len = 1,
47 .buf = out_buf,
48 },
49 {
50 .addr = 0x50,
51 .flags = I2C_M_RD,
52 .len = 1,
53 .buf = buf,
54 }
55 };
56
57 return i2c_transfer(&dev_priv->gmbus[ddc_bus].adapter, msgs, 2) == 2;
58}
59
60/**
61 * intel_ddc_get_modes - get modelist from monitor
62 * @connector: DRM connector device to use
63 * @adapter: i2c adapter
64 *
65 * Fetch the EDID information from @connector using the DDC bus.
66 */
67int intel_ddc_get_modes(struct drm_connector *connector,
68 struct i2c_adapter *adapter)
69{
70 struct edid *edid;
71 int ret = 0;
72
73 edid = drm_get_edid(connector, adapter);
74 if (edid) {
75 drm_mode_connector_update_edid_property(connector, edid);
76 ret = drm_add_edid_modes(connector, edid);
77 connector->display_info.raw_edid = NULL;
78 kfree(edid);
79 }
80
81 return ret;
82}
83
84static const char *force_audio_names[] = {
85 "off",
86 "auto",
87 "on",
88};
89
90void
91intel_attach_force_audio_property(struct drm_connector *connector)
92{
93 struct drm_device *dev = connector->dev;
94 struct drm_i915_private *dev_priv = dev->dev_private;
95 struct drm_property *prop;
96 int i;
97
98 prop = dev_priv->force_audio_property;
99 if (prop == NULL) {
100 prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
101 "audio",
102 ARRAY_SIZE(force_audio_names));
103 if (prop == NULL)
104 return;
105
106 for (i = 0; i < ARRAY_SIZE(force_audio_names); i++)
107 drm_property_add_enum(prop, i, i-1, force_audio_names[i]);
108
109 dev_priv->force_audio_property = prop;
110 }
111 drm_connector_attach_property(connector, prop, 0);
112}
113
114static const char *broadcast_rgb_names[] = {
115 "Full",
116 "Limited 16:235",
117};
118
119void
120intel_attach_broadcast_rgb_property(struct drm_connector *connector)
121{
122 struct drm_device *dev = connector->dev;
123 struct drm_i915_private *dev_priv = dev->dev_private;
124 struct drm_property *prop;
125 int i;
126
127 prop = dev_priv->broadcast_rgb_property;
128 if (prop == NULL) {
129 prop = drm_property_create(dev, DRM_MODE_PROP_ENUM,
130 "Broadcast RGB",
131 ARRAY_SIZE(broadcast_rgb_names));
132 if (prop == NULL)
133 return;
134
135 for (i = 0; i < ARRAY_SIZE(broadcast_rgb_names); i++)
136 drm_property_add_enum(prop, i, i, broadcast_rgb_names[i]);
137
138 dev_priv->broadcast_rgb_property = prop;
139 }
140
141 drm_connector_attach_property(connector, prop, 0);
142}
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 <drm/drm_edid.h>
29#include <drm/drmP.h>
30#include "intel_drv.h"
31#include "i915_drv.h"
32
33/**
34 * intel_connector_update_modes - update connector from edid
35 * @connector: DRM connector device to use
36 * @edid: previously read EDID information
37 */
38int intel_connector_update_modes(struct drm_connector *connector,
39 struct edid *edid)
40{
41 int ret;
42
43 drm_mode_connector_update_edid_property(connector, edid);
44 ret = drm_add_edid_modes(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 */
56int intel_ddc_get_modes(struct drm_connector *connector,
57 struct i2c_adapter *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
72static 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
79void
80intel_attach_force_audio_property(struct drm_connector *connector)
81{
82 struct drm_device *dev = connector->dev;
83 struct drm_i915_private *dev_priv = to_i915(dev);
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
100static 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
106void
107intel_attach_broadcast_rgb_property(struct drm_connector *connector)
108{
109 struct drm_device *dev = connector->dev;
110 struct drm_i915_private *dev_priv = to_i915(dev);
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
128void
129intel_attach_aspect_ratio_property(struct drm_connector *connector)
130{
131 if (!drm_mode_create_aspect_ratio_property(connector->dev))
132 drm_object_attach_property(&connector->base,
133 connector->dev->mode_config.aspect_ratio_property,
134 DRM_MODE_PICTURE_ASPECT_NONE);
135}