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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2022 Maxime Ripard <mripard@kernel.org>
*/
#include <kunit/test.h>
#include <drm/drm_connector.h>
#include <drm/drm_edid.h>
#include <drm/drm_drv.h>
#include <drm/drm_kunit_helpers.h>
#include <drm/drm_modes.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
struct drm_client_modeset_test_priv {
struct drm_device *drm;
struct device *dev;
struct drm_connector connector;
};
static int drm_client_modeset_connector_get_modes(struct drm_connector *connector)
{
struct drm_display_mode *mode;
int count;
count = drm_add_modes_noedid(connector, 1920, 1200);
mode = drm_mode_analog_ntsc_480i(connector->dev);
if (!mode)
return count;
drm_mode_probed_add(connector, mode);
count += 1;
mode = drm_mode_analog_pal_576i(connector->dev);
if (!mode)
return count;
drm_mode_probed_add(connector, mode);
count += 1;
return count;
}
static const struct drm_connector_helper_funcs drm_client_modeset_connector_helper_funcs = {
.get_modes = drm_client_modeset_connector_get_modes,
};
static const struct drm_connector_funcs drm_client_modeset_connector_funcs = {
};
static int drm_client_modeset_test_init(struct kunit *test)
{
struct drm_client_modeset_test_priv *priv;
int ret;
priv = kunit_kzalloc(test, sizeof(*priv), GFP_KERNEL);
KUNIT_ASSERT_NOT_NULL(test, priv);
test->priv = priv;
priv->dev = drm_kunit_helper_alloc_device(test);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->dev);
priv->drm = __drm_kunit_helper_alloc_drm_device(test, priv->dev,
sizeof(*priv->drm), 0,
DRIVER_MODESET);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
ret = drmm_connector_init(priv->drm, &priv->connector,
&drm_client_modeset_connector_funcs,
DRM_MODE_CONNECTOR_Unknown,
NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
drm_connector_helper_add(&priv->connector, &drm_client_modeset_connector_helper_funcs);
priv->connector.interlace_allowed = true;
priv->connector.doublescan_allowed = true;
return 0;
}
static void drm_client_modeset_test_exit(struct kunit *test)
{
struct drm_client_modeset_test_priv *priv = test->priv;
drm_kunit_helper_free_device(test, priv->dev);
}
static void drm_test_pick_cmdline_res_1920_1080_60(struct kunit *test)
{
struct drm_client_modeset_test_priv *priv = test->priv;
struct drm_device *drm = priv->drm;
struct drm_connector *connector = &priv->connector;
struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode;
struct drm_display_mode *expected_mode, *mode;
const char *cmdline = "1920x1080@60";
int ret;
expected_mode = drm_mode_find_dmt(priv->drm, 1920, 1080, 60, false);
KUNIT_ASSERT_NOT_NULL(test, expected_mode);
KUNIT_ASSERT_TRUE(test,
drm_mode_parse_command_line_for_connector(cmdline,
connector,
cmdline_mode));
mutex_lock(&drm->mode_config.mutex);
ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
mutex_unlock(&drm->mode_config.mutex);
KUNIT_ASSERT_GT(test, ret, 0);
mode = drm_connector_pick_cmdline_mode(connector);
KUNIT_ASSERT_NOT_NULL(test, mode);
KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode));
}
struct drm_connector_pick_cmdline_mode_test {
const char *cmdline;
struct drm_display_mode *(*func)(struct drm_device *drm);
};
#define TEST_CMDLINE(_cmdline, _fn) \
{ \
.cmdline = _cmdline, \
.func = _fn, \
}
static void drm_test_pick_cmdline_named(struct kunit *test)
{
const struct drm_connector_pick_cmdline_mode_test *params = test->param_value;
struct drm_client_modeset_test_priv *priv = test->priv;
struct drm_device *drm = priv->drm;
struct drm_connector *connector = &priv->connector;
struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode;
const struct drm_display_mode *expected_mode, *mode;
const char *cmdline = params->cmdline;
int ret;
KUNIT_ASSERT_TRUE(test,
drm_mode_parse_command_line_for_connector(cmdline,
connector,
cmdline_mode));
mutex_lock(&drm->mode_config.mutex);
ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
mutex_unlock(&drm->mode_config.mutex);
KUNIT_ASSERT_GT(test, ret, 0);
mode = drm_connector_pick_cmdline_mode(connector);
KUNIT_ASSERT_NOT_NULL(test, mode);
expected_mode = params->func(drm);
KUNIT_ASSERT_NOT_NULL(test, expected_mode);
KUNIT_EXPECT_TRUE(test, drm_mode_equal(expected_mode, mode));
}
static const
struct drm_connector_pick_cmdline_mode_test drm_connector_pick_cmdline_mode_tests[] = {
TEST_CMDLINE("NTSC", drm_mode_analog_ntsc_480i),
TEST_CMDLINE("NTSC-J", drm_mode_analog_ntsc_480i),
TEST_CMDLINE("PAL", drm_mode_analog_pal_576i),
TEST_CMDLINE("PAL-M", drm_mode_analog_ntsc_480i),
};
static void
drm_connector_pick_cmdline_mode_desc(const struct drm_connector_pick_cmdline_mode_test *t,
char *desc)
{
sprintf(desc, "%s", t->cmdline);
}
KUNIT_ARRAY_PARAM(drm_connector_pick_cmdline_mode,
drm_connector_pick_cmdline_mode_tests,
drm_connector_pick_cmdline_mode_desc);
static struct kunit_case drm_test_pick_cmdline_tests[] = {
KUNIT_CASE(drm_test_pick_cmdline_res_1920_1080_60),
KUNIT_CASE_PARAM(drm_test_pick_cmdline_named,
drm_connector_pick_cmdline_mode_gen_params),
{}
};
static struct kunit_suite drm_test_pick_cmdline_test_suite = {
.name = "drm_test_pick_cmdline",
.init = drm_client_modeset_test_init,
.exit = drm_client_modeset_test_exit,
.test_cases = drm_test_pick_cmdline_tests
};
kunit_test_suite(drm_test_pick_cmdline_test_suite);
/*
* This file is included directly by drm_client_modeset.c so we can't
* use any MODULE_* macro here.
*/
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