1// SPDX-License-Identifier: GPL-2.0
2
3#include <drm/drm_atomic_state_helper.h>
4#include <drm/drm_atomic_uapi.h>
5#include <drm/drm_connector.h>
6#include <drm/drm_crtc.h>
7#include <drm/drm_encoder.h>
8#include <drm/drm_modeset_helper_vtables.h>
9
10#include <kunit/test.h>
11
12#include "vc4_mock.h"
13
14static const struct drm_connector_helper_funcs vc4_dummy_connector_helper_funcs = {
15};
16
17static const struct drm_connector_funcs vc4_dummy_connector_funcs = {
18 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
19 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
20 .reset = drm_atomic_helper_connector_reset,
21};
22
23struct vc4_dummy_output *vc4_dummy_output(struct kunit *test,
24 struct drm_device *drm,
25 struct drm_crtc *crtc,
26 enum vc4_encoder_type vc4_encoder_type,
27 unsigned int kms_encoder_type,
28 unsigned int connector_type)
29{
30 struct vc4_dummy_output *dummy_output;
31 struct drm_connector *conn;
32 struct drm_encoder *enc;
33 int ret;
34
35 dummy_output = drmm_kzalloc(dev: drm, size: sizeof(*dummy_output), GFP_KERNEL);
36 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dummy_output);
37 dummy_output->encoder.type = vc4_encoder_type;
38
39 enc = &dummy_output->encoder.base;
40 ret = drmm_encoder_init(dev: drm, encoder: enc,
41 NULL,
42 encoder_type: kms_encoder_type,
43 NULL);
44 KUNIT_ASSERT_EQ(test, ret, 0);
45 enc->possible_crtcs = drm_crtc_mask(crtc);
46
47 conn = &dummy_output->connector;
48 ret = drmm_connector_init(dev: drm, connector: conn,
49 funcs: &vc4_dummy_connector_funcs,
50 connector_type,
51 NULL);
52 KUNIT_ASSERT_EQ(test, ret, 0);
53
54 drm_connector_helper_add(connector: conn, funcs: &vc4_dummy_connector_helper_funcs);
55 drm_connector_attach_encoder(connector: conn, encoder: enc);
56
57 return dummy_output;
58}
59
60static const struct drm_display_mode default_mode = {
61 DRM_SIMPLE_MODE(640, 480, 64, 48)
62};
63
64int vc4_mock_atomic_add_output(struct kunit *test,
65 struct drm_atomic_state *state,
66 enum vc4_encoder_type type)
67{
68 struct drm_device *drm = state->dev;
69 struct drm_connector_state *conn_state;
70 struct drm_crtc_state *crtc_state;
71 struct vc4_dummy_output *output;
72 struct drm_connector *conn;
73 struct drm_encoder *encoder;
74 struct drm_crtc *crtc;
75 int ret;
76
77 encoder = vc4_find_encoder_by_type(drm, type);
78 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, encoder);
79
80 crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
81 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
82
83 output = encoder_to_vc4_dummy_output(encoder);
84 conn = &output->connector;
85 conn_state = drm_atomic_get_connector_state(state, connector: conn);
86 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
87
88 ret = drm_atomic_set_crtc_for_connector(conn_state, crtc);
89 KUNIT_EXPECT_EQ(test, ret, 0);
90
91 crtc_state = drm_atomic_get_crtc_state(state, crtc);
92 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
93
94 ret = drm_atomic_set_mode_for_crtc(state: crtc_state, mode: &default_mode);
95 KUNIT_EXPECT_EQ(test, ret, 0);
96
97 crtc_state->active = true;
98
99 return 0;
100}
101
102int vc4_mock_atomic_del_output(struct kunit *test,
103 struct drm_atomic_state *state,
104 enum vc4_encoder_type type)
105{
106 struct drm_device *drm = state->dev;
107 struct drm_connector_state *conn_state;
108 struct drm_crtc_state *crtc_state;
109 struct vc4_dummy_output *output;
110 struct drm_connector *conn;
111 struct drm_encoder *encoder;
112 struct drm_crtc *crtc;
113 int ret;
114
115 encoder = vc4_find_encoder_by_type(drm, type);
116 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, encoder);
117
118 crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
119 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc);
120
121 crtc_state = drm_atomic_get_crtc_state(state, crtc);
122 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, crtc_state);
123
124 crtc_state->active = false;
125
126 ret = drm_atomic_set_mode_for_crtc(state: crtc_state, NULL);
127 KUNIT_ASSERT_EQ(test, ret, 0);
128
129 output = encoder_to_vc4_dummy_output(encoder);
130 conn = &output->connector;
131 conn_state = drm_atomic_get_connector_state(state, connector: conn);
132 KUNIT_ASSERT_NOT_ERR_OR_NULL(test, conn_state);
133
134 ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
135 KUNIT_ASSERT_EQ(test, ret, 0);
136
137 return 0;
138}
139

source code of linux/drivers/gpu/drm/vc4/tests/vc4_mock_output.c