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/i2c.h>
27 #include <linux/slab.h>
29 #include <drm/drm_atomic_helper.h>
30 #include <drm/drm_edid.h>
33 #include "intel_backlight.h"
34 #include "intel_connector.h"
35 #include "intel_display_debugfs.h"
36 #include "intel_display_types.h"
37 #include "intel_hdcp.h"
38 #include "intel_panel.h"
40 int intel_connector_init(struct intel_connector *connector)
42 struct intel_digital_connector_state *conn_state;
45 * Allocate enough memory to hold intel_digital_connector_state,
46 * This might be a few bytes too many, but for connectors that don't
47 * need it we'll free the state and allocate a smaller one on the first
48 * successful commit anyway.
50 conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);
54 __drm_atomic_helper_connector_reset(&connector->base,
57 intel_panel_init_alloc(connector);
62 struct intel_connector *intel_connector_alloc(void)
64 struct intel_connector *connector;
66 connector = kzalloc(sizeof(*connector), GFP_KERNEL);
70 if (intel_connector_init(connector) < 0) {
79 * Free the bits allocated by intel_connector_alloc.
80 * This should only be used after intel_connector_alloc has returned
81 * successfully, and before drm_connector_init returns successfully.
82 * Otherwise the destroy callbacks for the connector and the state should
83 * take care of proper cleanup/free (see intel_connector_destroy).
85 void intel_connector_free(struct intel_connector *connector)
87 kfree(to_intel_digital_connector_state(connector->base.state));
92 * Connector type independent destroy hook for drm_connector_funcs.
94 void intel_connector_destroy(struct drm_connector *connector)
96 struct intel_connector *intel_connector = to_intel_connector(connector);
98 drm_edid_free(intel_connector->detect_edid);
100 intel_hdcp_cleanup(intel_connector);
102 intel_panel_fini(intel_connector);
104 drm_connector_cleanup(connector);
106 if (intel_connector->port)
107 drm_dp_mst_put_port_malloc(intel_connector->port);
112 int intel_connector_register(struct drm_connector *connector)
114 struct intel_connector *intel_connector = to_intel_connector(connector);
117 ret = intel_backlight_device_register(intel_connector);
121 if (i915_inject_probe_failure(to_i915(connector->dev))) {
126 intel_connector_debugfs_add(intel_connector);
131 intel_backlight_device_unregister(intel_connector);
136 void intel_connector_unregister(struct drm_connector *connector)
138 struct intel_connector *intel_connector = to_intel_connector(connector);
140 intel_backlight_device_unregister(intel_connector);
143 void intel_connector_attach_encoder(struct intel_connector *connector,
144 struct intel_encoder *encoder)
146 connector->encoder = encoder;
147 drm_connector_attach_encoder(&connector->base, &encoder->base);
151 * Simple connector->get_hw_state implementation for encoders that support only
152 * one connector and no cloning and hence the encoder state determines the state
155 bool intel_connector_get_hw_state(struct intel_connector *connector)
158 struct intel_encoder *encoder = intel_attached_encoder(connector);
160 return encoder->get_hw_state(encoder, &pipe);
163 enum pipe intel_connector_get_pipe(struct intel_connector *connector)
165 struct drm_device *dev = connector->base.dev;
168 !drm_modeset_is_locked(&dev->mode_config.connection_mutex));
170 if (!connector->base.state->crtc)
173 return to_intel_crtc(connector->base.state->crtc)->pipe;
177 * intel_connector_update_modes - update connector from edid
178 * @connector: DRM connector device to use
179 * @drm_edid: previously read EDID information
181 int intel_connector_update_modes(struct drm_connector *connector,
182 const struct drm_edid *drm_edid)
186 drm_edid_connector_update(connector, drm_edid);
187 ret = drm_edid_connector_add_modes(connector);
193 * intel_ddc_get_modes - get modelist from monitor
194 * @connector: DRM connector device to use
195 * @adapter: i2c adapter
197 * Fetch the EDID information from @connector using the DDC bus.
199 int intel_ddc_get_modes(struct drm_connector *connector,
200 struct i2c_adapter *adapter)
202 const struct drm_edid *drm_edid;
205 drm_edid = drm_edid_read_ddc(connector, adapter);
209 ret = intel_connector_update_modes(connector, drm_edid);
210 drm_edid_free(drm_edid);
215 static const struct drm_prop_enum_list force_audio_names[] = {
216 { HDMI_AUDIO_OFF_DVI, "force-dvi" },
217 { HDMI_AUDIO_OFF, "off" },
218 { HDMI_AUDIO_AUTO, "auto" },
219 { HDMI_AUDIO_ON, "on" },
223 intel_attach_force_audio_property(struct drm_connector *connector)
225 struct drm_device *dev = connector->dev;
226 struct drm_i915_private *dev_priv = to_i915(dev);
227 struct drm_property *prop;
229 prop = dev_priv->display.properties.force_audio;
231 prop = drm_property_create_enum(dev, 0,
234 ARRAY_SIZE(force_audio_names));
238 dev_priv->display.properties.force_audio = prop;
240 drm_object_attach_property(&connector->base, prop, 0);
243 static const struct drm_prop_enum_list broadcast_rgb_names[] = {
244 { INTEL_BROADCAST_RGB_AUTO, "Automatic" },
245 { INTEL_BROADCAST_RGB_FULL, "Full" },
246 { INTEL_BROADCAST_RGB_LIMITED, "Limited 16:235" },
250 intel_attach_broadcast_rgb_property(struct drm_connector *connector)
252 struct drm_device *dev = connector->dev;
253 struct drm_i915_private *dev_priv = to_i915(dev);
254 struct drm_property *prop;
256 prop = dev_priv->display.properties.broadcast_rgb;
258 prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
261 ARRAY_SIZE(broadcast_rgb_names));
265 dev_priv->display.properties.broadcast_rgb = prop;
268 drm_object_attach_property(&connector->base, prop, 0);
272 intel_attach_aspect_ratio_property(struct drm_connector *connector)
274 if (!drm_mode_create_aspect_ratio_property(connector->dev))
275 drm_object_attach_property(&connector->base,
276 connector->dev->mode_config.aspect_ratio_property,
277 DRM_MODE_PICTURE_ASPECT_NONE);
281 intel_attach_hdmi_colorspace_property(struct drm_connector *connector)
283 if (!drm_mode_create_hdmi_colorspace_property(connector))
284 drm_connector_attach_colorspace_property(connector);
288 intel_attach_dp_colorspace_property(struct drm_connector *connector)
290 if (!drm_mode_create_dp_colorspace_property(connector))
291 drm_connector_attach_colorspace_property(connector);
295 intel_attach_scaling_mode_property(struct drm_connector *connector)
297 struct drm_i915_private *i915 = to_i915(connector->dev);
300 scaling_modes = BIT(DRM_MODE_SCALE_ASPECT) |
301 BIT(DRM_MODE_SCALE_FULLSCREEN);
303 /* On GMCH platforms borders are only possible on the LVDS port */
304 if (!HAS_GMCH(i915) || connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
305 scaling_modes |= BIT(DRM_MODE_SCALE_CENTER);
307 drm_connector_attach_scaling_mode_property(connector, scaling_modes);
309 connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;