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When a connector is created, add a `status` file to allow to update the connector status to: - 1 connector_status_connected - 2 connector_status_disconnected - 3 connector_status_unknown If the device is enabled, updating the status hot-plug or unplugs the connector. Tested-by: Mark Yacoub <markyacoub@google.com> Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: José Expósito <jose.exposito89@gmail.com> Link: https://lore.kernel.org/r/20251016175618.10051-17-jose.exposito89@gmail.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_managed.h>
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#include <drm/drm_probe_helper.h>
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#include "vkms_config.h"
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#include "vkms_connector.h"
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static enum drm_connector_status vkms_connector_detect(struct drm_connector *connector,
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bool force)
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{
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struct drm_device *dev = connector->dev;
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struct vkms_device *vkmsdev = drm_device_to_vkms_device(dev);
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struct vkms_connector *vkms_connector;
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enum drm_connector_status status;
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struct vkms_config_connector *connector_cfg;
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vkms_connector = drm_connector_to_vkms_connector(connector);
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/*
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* The connector configuration might not exist if its configfs directory
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* was deleted. Therefore, use the configuration if present or keep the
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* current status if we can not access it anymore.
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*/
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status = connector->status;
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vkms_config_for_each_connector(vkmsdev->config, connector_cfg) {
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if (connector_cfg->connector == vkms_connector)
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status = vkms_config_connector_get_status(connector_cfg);
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}
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return status;
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}
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static const struct drm_connector_funcs vkms_connector_funcs = {
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.detect = vkms_connector_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.reset = drm_atomic_helper_connector_reset,
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.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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};
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static int vkms_conn_get_modes(struct drm_connector *connector)
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{
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int count;
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/* Use the default modes list from DRM */
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count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
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drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
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return count;
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}
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static struct drm_encoder *vkms_conn_best_encoder(struct drm_connector *connector)
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{
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struct drm_encoder *encoder;
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drm_connector_for_each_possible_encoder(connector, encoder)
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return encoder;
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return NULL;
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}
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static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
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.get_modes = vkms_conn_get_modes,
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.best_encoder = vkms_conn_best_encoder,
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};
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struct vkms_connector *vkms_connector_init(struct vkms_device *vkmsdev)
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{
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struct drm_device *dev = &vkmsdev->drm;
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struct vkms_connector *connector;
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int ret;
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connector = drmm_kzalloc(dev, sizeof(*connector), GFP_KERNEL);
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if (!connector)
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return ERR_PTR(-ENOMEM);
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ret = drmm_connector_init(dev, &connector->base, &vkms_connector_funcs,
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DRM_MODE_CONNECTOR_VIRTUAL, NULL);
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if (ret)
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return ERR_PTR(ret);
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drm_connector_helper_add(&connector->base, &vkms_conn_helper_funcs);
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return connector;
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}
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void vkms_trigger_connector_hotplug(struct vkms_device *vkmsdev)
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{
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struct drm_device *dev = &vkmsdev->drm;
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drm_kms_helper_hotplug_event(dev);
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}
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