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// SPDX-License-Identifier: GPL-2.0
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_encoder.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <kunit/test.h>
#include "vc4_mock.h"
static const struct drm_connector_helper_funcs vc4_dummy_connector_helper_funcs = {
};
static const struct drm_connector_funcs vc4_dummy_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.reset = drm_atomic_helper_connector_reset,
};
struct vc4_dummy_output *vc4_dummy_output(struct kunit *test,
struct drm_device *drm,
struct drm_crtc *crtc,
enum vc4_encoder_type vc4_encoder_type,
unsigned int kms_encoder_type,
unsigned int connector_type)
{
struct vc4_dummy_output *dummy_output;
struct drm_connector *conn;
struct drm_encoder *enc;
int ret;
dummy_output = drmm_kzalloc(drm, sizeof(*dummy_output), GFP_KERNEL);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dummy_output);
dummy_output->encoder.type = vc4_encoder_type;
enc = &dummy_output->encoder.base;
ret = drmm_encoder_init(drm, enc,
NULL,
kms_encoder_type,
NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
enc->possible_crtcs = drm_crtc_mask(crtc);
conn = &dummy_output->connector;
ret = drmm_connector_init(drm, conn,
&vc4_dummy_connector_funcs,
connector_type,
NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
drm_connector_helper_add(conn, &vc4_dummy_connector_helper_funcs);
drm_connector_attach_encoder(conn, enc);
return dummy_output;
}
static const struct drm_display_mode default_mode = {
DRM_SIMPLE_MODE(640, 480, 64, 48)
};
/**
* vc4_mock_atomic_add_output() - Enables an output in a state
* @test: The test context object
* @state: Atomic state to enable the output in.
* @type: Type of the output encoder
*
* Adds an output CRTC and connector to a state, and enables them.
*
* Returns:
* 0 on success, a negative error code on failure. If the error is
* EDEADLK, the entire atomic sequence must be restarted. All other
* errors are fatal.
*/
int vc4_mock_atomic_add_output(struct kunit *test,
struct drm_atomic_state *state,
enum vc4_encoder_type type)
{
struct drm_device *drm = state->dev;
struct drm_connector_state *conn_state;
struct drm_crtc_state *crtc_state;
struct vc4_dummy_output *output;
struct drm_connector *conn;
struct drm_encoder *encoder;
struct drm_crtc *crtc;
int ret;
encoder = vc4_find_encoder_by_type(drm, type);
if (!encoder)
return -ENODEV;
crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
if (!crtc)
return -ENODEV;
output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
if (IS_ERR(conn_state))
return PTR_ERR(conn_state);
ret = drm_atomic_set_crtc_for_connector(conn_state, crtc);
if (ret)
return ret;
crtc_state = drm_atomic_get_crtc_state(state, crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
ret = drm_atomic_set_mode_for_crtc(crtc_state, &default_mode);
if (ret)
return ret;
crtc_state->active = true;
return 0;
}
/**
* vc4_mock_atomic_del_output() - Disables an output in a state
* @test: The test context object
* @state: Atomic state to disable the output in.
* @type: Type of the output encoder
*
* Adds an output CRTC and connector to a state, and disables them.
*
* Returns:
* 0 on success, a negative error code on failure. If the error is
* EDEADLK, the entire atomic sequence must be restarted. All other
* errors are fatal.
*/
int vc4_mock_atomic_del_output(struct kunit *test,
struct drm_atomic_state *state,
enum vc4_encoder_type type)
{
struct drm_device *drm = state->dev;
struct drm_connector_state *conn_state;
struct drm_crtc_state *crtc_state;
struct vc4_dummy_output *output;
struct drm_connector *conn;
struct drm_encoder *encoder;
struct drm_crtc *crtc;
int ret;
encoder = vc4_find_encoder_by_type(drm, type);
if (!encoder)
return -ENODEV;
crtc = vc4_find_crtc_for_encoder(test, drm, encoder);
if (!crtc)
return -ENODEV;
crtc_state = drm_atomic_get_crtc_state(state, crtc);
if (IS_ERR(crtc_state))
return PTR_ERR(crtc_state);
crtc_state->active = false;
ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
if (ret)
return ret;
output = encoder_to_vc4_dummy_output(encoder);
conn = &output->connector;
conn_state = drm_atomic_get_connector_state(state, conn);
if (IS_ERR(conn_state))
return PTR_ERR(conn_state);
ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
if (ret)
return ret;
return 0;
}
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