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// SPDX-License-Identifier: GPL-2.0
/*
* Kunit test for drm_probe_helper functions
*/
#include <drm/drm_atomic_state_helper.h>
#include <drm/drm_connector.h>
#include <drm/drm_device.h>
#include <drm/drm_drv.h>
#include <drm/drm_kunit_helpers.h>
#include <drm/drm_mode.h>
#include <drm/drm_modes.h>
#include <drm/drm_modeset_helper_vtables.h>
#include <drm/drm_probe_helper.h>
#include <kunit/test.h>
struct drm_probe_helper_test_priv {
struct drm_device *drm;
struct device *dev;
struct drm_connector connector;
};
static const struct drm_connector_helper_funcs drm_probe_helper_connector_helper_funcs = {
};
static const struct drm_connector_funcs drm_probe_helper_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,
};
static int drm_probe_helper_test_init(struct kunit *test)
{
struct drm_probe_helper_test_priv *priv;
struct drm_connector *connector;
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 | DRIVER_ATOMIC);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv->drm);
connector = &priv->connector;
ret = drmm_connector_init(priv->drm, connector,
&drm_probe_helper_connector_funcs,
DRM_MODE_CONNECTOR_Unknown,
NULL);
KUNIT_ASSERT_EQ(test, ret, 0);
drm_connector_helper_add(connector, &drm_probe_helper_connector_helper_funcs);
return 0;
}
typedef struct drm_display_mode *(*expected_mode_func_t)(struct drm_device *);
struct drm_connector_helper_tv_get_modes_test {
const char *name;
unsigned int supported_tv_modes;
enum drm_connector_tv_mode default_mode;
bool cmdline;
enum drm_connector_tv_mode cmdline_mode;
expected_mode_func_t *expected_modes;
unsigned int num_expected_modes;
};
#define _TV_MODE_TEST(_name, _supported, _default, _cmdline, _cmdline_mode, ...) \
{ \
.name = _name, \
.supported_tv_modes = _supported, \
.default_mode = _default, \
.cmdline = _cmdline, \
.cmdline_mode = _cmdline_mode, \
.expected_modes = (expected_mode_func_t[]) { __VA_ARGS__ }, \
.num_expected_modes = sizeof((expected_mode_func_t[]) { __VA_ARGS__ }) / \
(sizeof(expected_mode_func_t)), \
}
#define TV_MODE_TEST(_name, _supported, _default, ...) \
_TV_MODE_TEST(_name, _supported, _default, false, 0, __VA_ARGS__)
#define TV_MODE_TEST_CMDLINE(_name, _supported, _default, _cmdline, ...) \
_TV_MODE_TEST(_name, _supported, _default, true, _cmdline, __VA_ARGS__)
static void
drm_test_connector_helper_tv_get_modes_check(struct kunit *test)
{
const struct drm_connector_helper_tv_get_modes_test *params = test->param_value;
struct drm_probe_helper_test_priv *priv = test->priv;
struct drm_connector *connector = &priv->connector;
struct drm_cmdline_mode *cmdline = &connector->cmdline_mode;
struct drm_display_mode *mode;
struct drm_display_mode *expected;
size_t len;
int ret;
if (params->cmdline) {
cmdline->tv_mode_specified = true;
cmdline->tv_mode = params->cmdline_mode;
}
ret = drm_mode_create_tv_properties(priv->drm, params->supported_tv_modes);
KUNIT_ASSERT_EQ(test, ret, 0);
drm_object_attach_property(&connector->base,
priv->drm->mode_config.tv_mode_property,
params->default_mode);
mutex_lock(&priv->drm->mode_config.mutex);
ret = drm_connector_helper_tv_get_modes(connector);
KUNIT_EXPECT_EQ(test, ret, params->num_expected_modes);
len = 0;
list_for_each_entry(mode, &connector->probed_modes, head)
len++;
KUNIT_EXPECT_EQ(test, len, params->num_expected_modes);
if (params->num_expected_modes >= 1) {
mode = list_first_entry_or_null(&connector->probed_modes,
struct drm_display_mode, head);
KUNIT_ASSERT_NOT_NULL(test, mode);
expected = params->expected_modes[0](priv->drm);
KUNIT_ASSERT_NOT_NULL(test, expected);
KUNIT_EXPECT_TRUE(test, drm_mode_equal(mode, expected));
KUNIT_EXPECT_TRUE(test, mode->type & DRM_MODE_TYPE_PREFERRED);
ret = drm_kunit_add_mode_destroy_action(test, expected);
KUNIT_ASSERT_EQ(test, ret, 0);
}
if (params->num_expected_modes >= 2) {
mode = list_next_entry(mode, head);
KUNIT_ASSERT_NOT_NULL(test, mode);
expected = params->expected_modes[1](priv->drm);
KUNIT_ASSERT_NOT_NULL(test, expected);
KUNIT_EXPECT_TRUE(test, drm_mode_equal(mode, expected));
KUNIT_EXPECT_FALSE(test, mode->type & DRM_MODE_TYPE_PREFERRED);
ret = drm_kunit_add_mode_destroy_action(test, expected);
KUNIT_ASSERT_EQ(test, ret, 0);
}
mutex_unlock(&priv->drm->mode_config.mutex);
}
static const
struct drm_connector_helper_tv_get_modes_test drm_connector_helper_tv_get_modes_tests[] = {
{ .name = "None" },
TV_MODE_TEST("PAL",
BIT(DRM_MODE_TV_MODE_PAL),
DRM_MODE_TV_MODE_PAL,
drm_mode_analog_pal_576i),
TV_MODE_TEST("NTSC",
BIT(DRM_MODE_TV_MODE_NTSC),
DRM_MODE_TV_MODE_NTSC,
drm_mode_analog_ntsc_480i),
TV_MODE_TEST("Both, NTSC Default",
BIT(DRM_MODE_TV_MODE_NTSC) | BIT(DRM_MODE_TV_MODE_PAL),
DRM_MODE_TV_MODE_NTSC,
drm_mode_analog_ntsc_480i, drm_mode_analog_pal_576i),
TV_MODE_TEST("Both, PAL Default",
BIT(DRM_MODE_TV_MODE_NTSC) | BIT(DRM_MODE_TV_MODE_PAL),
DRM_MODE_TV_MODE_PAL,
drm_mode_analog_pal_576i, drm_mode_analog_ntsc_480i),
TV_MODE_TEST_CMDLINE("Both, NTSC Default, with PAL on command-line",
BIT(DRM_MODE_TV_MODE_NTSC) | BIT(DRM_MODE_TV_MODE_PAL),
DRM_MODE_TV_MODE_NTSC,
DRM_MODE_TV_MODE_PAL,
drm_mode_analog_pal_576i, drm_mode_analog_ntsc_480i),
TV_MODE_TEST_CMDLINE("Both, PAL Default, with NTSC on command-line",
BIT(DRM_MODE_TV_MODE_NTSC) | BIT(DRM_MODE_TV_MODE_PAL),
DRM_MODE_TV_MODE_PAL,
DRM_MODE_TV_MODE_NTSC,
drm_mode_analog_ntsc_480i, drm_mode_analog_pal_576i),
};
static void
drm_connector_helper_tv_get_modes_desc(const struct drm_connector_helper_tv_get_modes_test *t,
char *desc)
{
sprintf(desc, "%s", t->name);
}
KUNIT_ARRAY_PARAM(drm_connector_helper_tv_get_modes,
drm_connector_helper_tv_get_modes_tests,
drm_connector_helper_tv_get_modes_desc);
static struct kunit_case drm_test_connector_helper_tv_get_modes_tests[] = {
KUNIT_CASE_PARAM(drm_test_connector_helper_tv_get_modes_check,
drm_connector_helper_tv_get_modes_gen_params),
{ }
};
static struct kunit_suite drm_test_connector_helper_tv_get_modes_suite = {
.name = "drm_connector_helper_tv_get_modes",
.init = drm_probe_helper_test_init,
.test_cases = drm_test_connector_helper_tv_get_modes_tests,
};
kunit_test_suite(drm_test_connector_helper_tv_get_modes_suite);
MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>");
MODULE_DESCRIPTION("Kunit test for drm_probe_helper functions");
MODULE_LICENSE("GPL");
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