1 // SPDX-License-Identifier: GPL-2.0+
2
3 #include "vkms_drv.h"
4 #include <drm/drm_atomic_helper.h>
5 #include <drm/drm_probe_helper.h>
6
vkms_connector_destroy(struct drm_connector * connector)7 static void vkms_connector_destroy(struct drm_connector *connector)
8 {
9 drm_connector_cleanup(connector);
10 }
11
12 static const struct drm_connector_funcs vkms_connector_funcs = {
13 .fill_modes = drm_helper_probe_single_connector_modes,
14 .destroy = vkms_connector_destroy,
15 .reset = drm_atomic_helper_connector_reset,
16 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
17 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
18 };
19
20 static const struct drm_encoder_funcs vkms_encoder_funcs = {
21 .destroy = drm_encoder_cleanup,
22 };
23
vkms_conn_get_modes(struct drm_connector * connector)24 static int vkms_conn_get_modes(struct drm_connector *connector)
25 {
26 int count;
27
28 count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
29 drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
30
31 return count;
32 }
33
34 static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
35 .get_modes = vkms_conn_get_modes,
36 };
37
vkms_output_init(struct vkms_device * vkmsdev,int index)38 int vkms_output_init(struct vkms_device *vkmsdev, int index)
39 {
40 struct vkms_output *output = &vkmsdev->output;
41 struct drm_device *dev = &vkmsdev->drm;
42 struct drm_connector *connector = &output->connector;
43 struct drm_encoder *encoder = &output->encoder;
44 struct drm_crtc *crtc = &output->crtc;
45 struct drm_plane *primary, *cursor = NULL;
46 int ret;
47
48 primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index);
49 if (IS_ERR(primary))
50 return PTR_ERR(primary);
51
52 if (enable_cursor) {
53 cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index);
54 if (IS_ERR(cursor)) {
55 ret = PTR_ERR(cursor);
56 goto err_cursor;
57 }
58 }
59
60 ret = vkms_crtc_init(dev, crtc, primary, cursor);
61 if (ret)
62 goto err_crtc;
63
64 ret = drm_connector_init(dev, connector, &vkms_connector_funcs,
65 DRM_MODE_CONNECTOR_VIRTUAL);
66 if (ret) {
67 DRM_ERROR("Failed to init connector\n");
68 goto err_connector;
69 }
70
71 drm_connector_helper_add(connector, &vkms_conn_helper_funcs);
72
73 ret = drm_encoder_init(dev, encoder, &vkms_encoder_funcs,
74 DRM_MODE_ENCODER_VIRTUAL, NULL);
75 if (ret) {
76 DRM_ERROR("Failed to init encoder\n");
77 goto err_encoder;
78 }
79 encoder->possible_crtcs = 1;
80
81 ret = drm_connector_attach_encoder(connector, encoder);
82 if (ret) {
83 DRM_ERROR("Failed to attach connector to encoder\n");
84 goto err_attach;
85 }
86
87 drm_mode_config_reset(dev);
88
89 return 0;
90
91 err_attach:
92 drm_encoder_cleanup(encoder);
93
94 err_encoder:
95 drm_connector_cleanup(connector);
96
97 err_connector:
98 drm_crtc_cleanup(crtc);
99
100 err_crtc:
101 if (enable_cursor)
102 drm_plane_cleanup(cursor);
103
104 err_cursor:
105 drm_plane_cleanup(primary);
106
107 return ret;
108 }
109