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// SPDX-License-Identifier: GPL-2.0+
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_managed.h>
#include <drm/drm_probe_helper.h>
#include "vkms_config.h"
#include "vkms_connector.h"
static enum drm_connector_status vkms_connector_detect(struct drm_connector *connector,
bool force)
{
struct drm_device *dev = connector->dev;
struct vkms_device *vkmsdev = drm_device_to_vkms_device(dev);
struct vkms_connector *vkms_connector;
enum drm_connector_status status;
struct vkms_config_connector *connector_cfg;
vkms_connector = drm_connector_to_vkms_connector(connector);
/*
* The connector configuration might not exist if its configfs directory
* was deleted. Therefore, use the configuration if present or keep the
* current status if we can not access it anymore.
*/
status = connector->status;
vkms_config_for_each_connector(vkmsdev->config, connector_cfg) {
if (connector_cfg->connector == vkms_connector)
status = vkms_config_connector_get_status(connector_cfg);
}
return status;
}
static const struct drm_connector_funcs vkms_connector_funcs = {
.detect = vkms_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static int vkms_conn_get_modes(struct drm_connector *connector)
{
int count;
/* Use the default modes list from DRM */
count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
return count;
}
static struct drm_encoder *vkms_conn_best_encoder(struct drm_connector *connector)
{
struct drm_encoder *encoder;
drm_connector_for_each_possible_encoder(connector, encoder)
return encoder;
return NULL;
}
static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
.get_modes = vkms_conn_get_modes,
.best_encoder = vkms_conn_best_encoder,
};
struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev)
{
struct drm_device *dev = &vkmsdev->drm;
struct vkms_connector *connector;
int ret;
connector = drmm_kzalloc(dev, sizeof(*connector), GFP_KERNEL);
if (!connector)
return ERR_PTR(-ENOMEM);
ret = drmm_connector_init(dev, &connector->base, &vkms_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL, NULL);
if (ret)
return ERR_PTR(ret);
drm_connector_helper_add(&connector->base, &vkms_conn_helper_funcs);
return connector;
}
void vkms_trigger_connector_hotplug(struct vkms_device *vkmsdev)
{
struct drm_device *dev = &vkmsdev->drm;
drm_kms_helper_hotplug_event(dev);
}
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