1
2
3#include "vkms_drv.h"
4#include <drm/drm_atomic_helper.h>
5#include <drm/drm_probe_helper.h>
6#include <drm/drm_simple_kms_helper.h>
7
8static void vkms_connector_destroy(struct drm_connector *connector)
9{
10 drm_connector_cleanup(connector);
11}
12
13static const struct drm_connector_funcs vkms_connector_funcs = {
14 .fill_modes = drm_helper_probe_single_connector_modes,
15 .destroy = vkms_connector_destroy,
16 .reset = drm_atomic_helper_connector_reset,
17 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
18 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
19};
20
21static int vkms_conn_get_modes(struct drm_connector *connector)
22{
23 int count;
24
25 count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
26 drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
27
28 return count;
29}
30
31static const struct drm_connector_helper_funcs vkms_conn_helper_funcs = {
32 .get_modes = vkms_conn_get_modes,
33};
34
35static int vkms_add_overlay_plane(struct vkms_device *vkmsdev, int index,
36 struct drm_crtc *crtc)
37{
38 struct vkms_plane *overlay;
39
40 overlay = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_OVERLAY, index);
41 if (IS_ERR(overlay))
42 return PTR_ERR(overlay);
43
44 if (!overlay->base.possible_crtcs)
45 overlay->base.possible_crtcs = drm_crtc_mask(crtc);
46
47 return 0;
48}
49
50int vkms_output_init(struct vkms_device *vkmsdev, int index)
51{
52 struct vkms_output *output = &vkmsdev->output;
53 struct drm_device *dev = &vkmsdev->drm;
54 struct drm_connector *connector = &output->connector;
55 struct drm_encoder *encoder = &output->encoder;
56 struct drm_crtc *crtc = &output->crtc;
57 struct vkms_plane *primary, *cursor = NULL;
58 int ret;
59 int writeback;
60 unsigned int n;
61
62 primary = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_PRIMARY, index);
63 if (IS_ERR(primary))
64 return PTR_ERR(primary);
65
66 if (vkmsdev->config->overlay) {
67 for (n = 0; n < NUM_OVERLAY_PLANES; n++) {
68 ret = vkms_add_overlay_plane(vkmsdev, index, crtc);
69 if (ret)
70 return ret;
71 }
72 }
73
74 if (vkmsdev->config->cursor) {
75 cursor = vkms_plane_init(vkmsdev, DRM_PLANE_TYPE_CURSOR, index);
76 if (IS_ERR(cursor))
77 return PTR_ERR(cursor);
78 }
79
80 ret = vkms_crtc_init(dev, crtc, &primary->base, &cursor->base);
81 if (ret)
82 return ret;
83
84 ret = drm_connector_init(dev, connector, &vkms_connector_funcs,
85 DRM_MODE_CONNECTOR_VIRTUAL);
86 if (ret) {
87 DRM_ERROR("Failed to init connector\n");
88 goto err_connector;
89 }
90
91 drm_connector_helper_add(connector, &vkms_conn_helper_funcs);
92
93 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_VIRTUAL);
94 if (ret) {
95 DRM_ERROR("Failed to init encoder\n");
96 goto err_encoder;
97 }
98 encoder->possible_crtcs = 1;
99
100 ret = drm_connector_attach_encoder(connector, encoder);
101 if (ret) {
102 DRM_ERROR("Failed to attach connector to encoder\n");
103 goto err_attach;
104 }
105
106 if (vkmsdev->config->writeback) {
107 writeback = vkms_enable_writeback_connector(vkmsdev);
108 if (writeback)
109 DRM_ERROR("Failed to init writeback connector\n");
110 }
111
112 drm_mode_config_reset(dev);
113
114 return 0;
115
116err_attach:
117 drm_encoder_cleanup(encoder);
118
119err_encoder:
120 drm_connector_cleanup(connector);
121
122err_connector:
123 drm_crtc_cleanup(crtc);
124
125 return ret;
126}
127
