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(drm, 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(drm, enc,
 41				NULL,
 42				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(drm, conn,
 49				  &vc4_dummy_connector_funcs,
 50				  connector_type,
 51				  NULL);
 52	KUNIT_ASSERT_EQ(test, ret, 0);
 53
 54	drm_connector_helper_add(conn, &vc4_dummy_connector_helper_funcs);
 55	drm_connector_attach_encoder(conn, 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, 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(crtc_state, &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(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, 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}