| // 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_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; |
| } |