mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
![Gwan-gyeong Mun](/assets/img/avatar_default.png)
It attaches the colorspace connector property to a DisplayPort connector. Based on colorspace change, modeset will be triggered to switch to a new colorspace. And in order to distinguish colorspace bwtween DP and HDMI connector, it adds a handling of drm_mode_create_dp_colorspace_property() to intel_attach_colorspace_property(). Based on colorspace property value create a VSC SDP packet with appropriate colorspace. This would help to enable wider color gamut like BT2020 on a sink device. v9: Addressed review comments from Ville - Add a handling of drm_mode_create_dp_colorspace_property() to intel_attach_colorspace_property(). This hunk moved from the previous commit. Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190919195311.13972-6-gwan-gyeong.mun@intel.com
298 lines
7.9 KiB
C
298 lines
7.9 KiB
C
/*
|
|
* 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 "display/intel_panel.h"
|
|
|
|
#include "i915_drv.h"
|
|
#include "intel_connector.h"
|
|
#include "intel_display_types.h"
|
|
#include "intel_hdcp.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);
|
|
|
|
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->panel);
|
|
|
|
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;
|
|
}
|
|
|
|
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 = connector->encoder;
|
|
|
|
return encoder->get_hw_state(encoder, &pipe);
|
|
}
|
|
|
|
enum pipe intel_connector_get_pipe(struct intel_connector *connector)
|
|
{
|
|
struct drm_device *dev = connector->base.dev;
|
|
|
|
WARN_ON(!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->force_audio_property;
|
|
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->force_audio_property = 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->broadcast_rgb_property;
|
|
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->broadcast_rgb_property = 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_colorspace_property(struct drm_connector *connector)
|
|
{
|
|
switch (connector->connector_type) {
|
|
case DRM_MODE_CONNECTOR_HDMIA:
|
|
case DRM_MODE_CONNECTOR_HDMIB:
|
|
if (drm_mode_create_hdmi_colorspace_property(connector))
|
|
return;
|
|
break;
|
|
case DRM_MODE_CONNECTOR_DisplayPort:
|
|
case DRM_MODE_CONNECTOR_eDP:
|
|
if (drm_mode_create_dp_colorspace_property(connector))
|
|
return;
|
|
break;
|
|
default:
|
|
DRM_DEBUG_KMS("Colorspace property not supported\n");
|
|
return;
|
|
}
|
|
|
|
drm_object_attach_property(&connector->base,
|
|
connector->colorspace_property, 0);
|
|
}
|