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// SPDX-License-Identifier: GPL-2.0
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "vkms_drv.h"
#include <drm/drm_crtc_helper.h>
#include <drm/drm_atomic_helper.h>
static void vkms_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
static const struct drm_connector_funcs vkms_connector_funcs = {
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = vkms_connector_destroy,
.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 const struct drm_encoder_funcs vkms_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static int vkms_conn_get_modes(struct drm_connector *connector)
{
int count;
count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
return count;
}
static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
.get_modes = vkms_conn_get_modes,
};
int vkms_output_init(struct vkms_device *vkmsdev)
{
struct vkms_output *output = &vkmsdev->output;
struct drm_device *dev = &vkmsdev->drm;
struct drm_connector *connector = &output->connector;
struct drm_encoder *encoder = &output->encoder;
struct drm_crtc *crtc = &output->crtc;
struct drm_plane *primary;
int ret;
primary = vkms_plane_init(vkmsdev);
if (IS_ERR(primary))
return PTR_ERR(primary);
ret = vkms_crtc_init(dev, crtc, primary, NULL);
if (ret)
goto err_crtc;
ret = drm_connector_init(dev, connector, &vkms_connector_funcs,
DRM_MODE_CONNECTOR_VIRTUAL);
if (ret) {
DRM_ERROR("Failed to init connector\n");
goto err_connector;
}
drm_connector_helper_add(connector, &vkms_conn_helper_funcs);
ret = drm_connector_register(connector);
if (ret) {
DRM_ERROR("Failed to register connector\n");
goto err_connector_register;
}
ret = drm_encoder_init(dev, encoder, &vkms_encoder_funcs,
DRM_MODE_ENCODER_VIRTUAL, NULL);
if (ret) {
DRM_ERROR("Failed to init encoder\n");
goto err_encoder;
}
encoder->possible_crtcs = 1;
ret = drm_mode_connector_attach_encoder(connector, encoder);
if (ret) {
DRM_ERROR("Failed to attach connector to encoder\n");
goto err_attach;
}
drm_mode_config_reset(dev);
return 0;
err_attach:
drm_encoder_cleanup(encoder);
err_encoder:
drm_connector_unregister(connector);
err_connector_register:
drm_connector_cleanup(connector);
err_connector:
drm_crtc_cleanup(crtc);
err_crtc:
drm_plane_cleanup(primary);
return ret;
}
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