| /* |
| * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| * Copyright (c) 2007, 2010 Intel Corporation |
| * Jesse Barnes <jesse.barnes@intel.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include <linux/i2c.h> |
| #include <linux/slab.h> |
| |
| #include <drm/drm_atomic_helper.h> |
| #include <drm/drm_edid.h> |
| |
| #include "i915_drv.h" |
| #include "intel_backlight.h" |
| #include "intel_connector.h" |
| #include "intel_display_debugfs.h" |
| #include "intel_display_types.h" |
| #include "intel_hdcp.h" |
| #include "intel_panel.h" |
| |
| int intel_connector_init(struct intel_connector *connector) |
| { |
| struct intel_digital_connector_state *conn_state; |
| |
| /* |
| * Allocate enough memory to hold intel_digital_connector_state, |
| * This might be a few bytes too many, but for connectors that don't |
| * need it we'll free the state and allocate a smaller one on the first |
| * successful commit anyway. |
| */ |
| conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL); |
| if (!conn_state) |
| return -ENOMEM; |
| |
| __drm_atomic_helper_connector_reset(&connector->base, |
| &conn_state->base); |
| |
| INIT_LIST_HEAD(&connector->panel.fixed_modes); |
| |
| return 0; |
| } |
| |
| struct intel_connector *intel_connector_alloc(void) |
| { |
| struct intel_connector *connector; |
| |
| connector = kzalloc(sizeof(*connector), GFP_KERNEL); |
| if (!connector) |
| return NULL; |
| |
| if (intel_connector_init(connector) < 0) { |
| kfree(connector); |
| return NULL; |
| } |
| |
| return connector; |
| } |
| |
| /* |
| * Free the bits allocated by intel_connector_alloc. |
| * This should only be used after intel_connector_alloc has returned |
| * successfully, and before drm_connector_init returns successfully. |
| * Otherwise the destroy callbacks for the connector and the state should |
| * take care of proper cleanup/free (see intel_connector_destroy). |
| */ |
| void intel_connector_free(struct intel_connector *connector) |
| { |
| kfree(to_intel_digital_connector_state(connector->base.state)); |
| kfree(connector); |
| } |
| |
| /* |
| * Connector type independent destroy hook for drm_connector_funcs. |
| */ |
| void intel_connector_destroy(struct drm_connector *connector) |
| { |
| struct intel_connector *intel_connector = to_intel_connector(connector); |
| |
| kfree(intel_connector->detect_edid); |
| |
| intel_hdcp_cleanup(intel_connector); |
| |
| if (!IS_ERR_OR_NULL(intel_connector->edid)) |
| kfree(intel_connector->edid); |
| |
| intel_panel_fini(intel_connector); |
| |
| drm_connector_cleanup(connector); |
| |
| if (intel_connector->port) |
| drm_dp_mst_put_port_malloc(intel_connector->port); |
| |
| kfree(connector); |
| } |
| |
| int intel_connector_register(struct drm_connector *connector) |
| { |
| struct intel_connector *intel_connector = to_intel_connector(connector); |
| int ret; |
| |
| ret = intel_backlight_device_register(intel_connector); |
| if (ret) |
| goto err; |
| |
| if (i915_inject_probe_failure(to_i915(connector->dev))) { |
| ret = -EFAULT; |
| goto err_backlight; |
| } |
| |
| intel_connector_debugfs_add(intel_connector); |
| |
| return 0; |
| |
| err_backlight: |
| intel_backlight_device_unregister(intel_connector); |
| err: |
| return ret; |
| } |
| |
| void intel_connector_unregister(struct drm_connector *connector) |
| { |
| struct intel_connector *intel_connector = to_intel_connector(connector); |
| |
| intel_backlight_device_unregister(intel_connector); |
| } |
| |
| void intel_connector_attach_encoder(struct intel_connector *connector, |
| struct intel_encoder *encoder) |
| { |
| connector->encoder = encoder; |
| drm_connector_attach_encoder(&connector->base, &encoder->base); |
| } |
| |
| /* |
| * Simple connector->get_hw_state implementation for encoders that support only |
| * one connector and no cloning and hence the encoder state determines the state |
| * of the connector. |
| */ |
| bool intel_connector_get_hw_state(struct intel_connector *connector) |
| { |
| enum pipe pipe = 0; |
| struct intel_encoder *encoder = intel_attached_encoder(connector); |
| |
| return encoder->get_hw_state(encoder, &pipe); |
| } |
| |
| enum pipe intel_connector_get_pipe(struct intel_connector *connector) |
| { |
| struct drm_device *dev = connector->base.dev; |
| |
| drm_WARN_ON(dev, |
| !drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
| |
| if (!connector->base.state->crtc) |
| return INVALID_PIPE; |
| |
| return to_intel_crtc(connector->base.state->crtc)->pipe; |
| } |
| |
| /** |
| * intel_connector_update_modes - update connector from edid |
| * @connector: DRM connector device to use |
| * @edid: previously read EDID information |
| */ |
| int intel_connector_update_modes(struct drm_connector *connector, |
| struct edid *edid) |
| { |
| int ret; |
| |
| drm_connector_update_edid_property(connector, edid); |
| ret = drm_add_edid_modes(connector, edid); |
| |
| return ret; |
| } |
| |
| /** |
| * intel_ddc_get_modes - get modelist from monitor |
| * @connector: DRM connector device to use |
| * @adapter: i2c adapter |
| * |
| * Fetch the EDID information from @connector using the DDC bus. |
| */ |
| int intel_ddc_get_modes(struct drm_connector *connector, |
| struct i2c_adapter *adapter) |
| { |
| struct edid *edid; |
| int ret; |
| |
| edid = drm_get_edid(connector, adapter); |
| if (!edid) |
| return 0; |
| |
| ret = intel_connector_update_modes(connector, edid); |
| kfree(edid); |
| |
| return ret; |
| } |
| |
| static const struct drm_prop_enum_list force_audio_names[] = { |
| { HDMI_AUDIO_OFF_DVI, "force-dvi" }, |
| { HDMI_AUDIO_OFF, "off" }, |
| { HDMI_AUDIO_AUTO, "auto" }, |
| { HDMI_AUDIO_ON, "on" }, |
| }; |
| |
| void |
| intel_attach_force_audio_property(struct drm_connector *connector) |
| { |
| struct drm_device *dev = connector->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct drm_property *prop; |
| |
| prop = dev_priv->display.properties.force_audio; |
| if (prop == NULL) { |
| prop = drm_property_create_enum(dev, 0, |
| "audio", |
| force_audio_names, |
| ARRAY_SIZE(force_audio_names)); |
| if (prop == NULL) |
| return; |
| |
| dev_priv->display.properties.force_audio = prop; |
| } |
| drm_object_attach_property(&connector->base, prop, 0); |
| } |
| |
| static const struct drm_prop_enum_list broadcast_rgb_names[] = { |
| { INTEL_BROADCAST_RGB_AUTO, "Automatic" }, |
| { INTEL_BROADCAST_RGB_FULL, "Full" }, |
| { INTEL_BROADCAST_RGB_LIMITED, "Limited 16:235" }, |
| }; |
| |
| void |
| intel_attach_broadcast_rgb_property(struct drm_connector *connector) |
| { |
| struct drm_device *dev = connector->dev; |
| struct drm_i915_private *dev_priv = to_i915(dev); |
| struct drm_property *prop; |
| |
| prop = dev_priv->display.properties.broadcast_rgb; |
| if (prop == NULL) { |
| prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM, |
| "Broadcast RGB", |
| broadcast_rgb_names, |
| ARRAY_SIZE(broadcast_rgb_names)); |
| if (prop == NULL) |
| return; |
| |
| dev_priv->display.properties.broadcast_rgb = prop; |
| } |
| |
| drm_object_attach_property(&connector->base, prop, 0); |
| } |
| |
| void |
| intel_attach_aspect_ratio_property(struct drm_connector *connector) |
| { |
| if (!drm_mode_create_aspect_ratio_property(connector->dev)) |
| drm_object_attach_property(&connector->base, |
| connector->dev->mode_config.aspect_ratio_property, |
| DRM_MODE_PICTURE_ASPECT_NONE); |
| } |
| |
| void |
| intel_attach_hdmi_colorspace_property(struct drm_connector *connector) |
| { |
| if (!drm_mode_create_hdmi_colorspace_property(connector)) |
| drm_connector_attach_colorspace_property(connector); |
| } |
| |
| void |
| intel_attach_dp_colorspace_property(struct drm_connector *connector) |
| { |
| if (!drm_mode_create_dp_colorspace_property(connector)) |
| drm_connector_attach_colorspace_property(connector); |
| } |
| |
| void |
| intel_attach_scaling_mode_property(struct drm_connector *connector) |
| { |
| struct drm_i915_private *i915 = to_i915(connector->dev); |
| u32 scaling_modes; |
| |
| scaling_modes = BIT(DRM_MODE_SCALE_ASPECT) | |
| BIT(DRM_MODE_SCALE_FULLSCREEN); |
| |
| /* On GMCH platforms borders are only possible on the LVDS port */ |
| if (!HAS_GMCH(i915) || connector->connector_type == DRM_MODE_CONNECTOR_LVDS) |
| scaling_modes |= BIT(DRM_MODE_SCALE_CENTER); |
| |
| drm_connector_attach_scaling_mode_property(connector, scaling_modes); |
| |
| connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT; |
| } |