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// SPDX-License-Identifier: GPL-2.0-only
/*
* KUnit tests for channel helper functions
*
* Copyright (C) 2024 Intel Corporation
*/
#include <net/mac80211.h>
#include "../mvm.h"
#include <kunit/test.h>
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
static const struct acs_average_db_case {
const char *desc;
u8 neg_dbm[22];
s8 result;
} acs_average_db_cases[] = {
{
.desc = "Smallest possible value, all filled",
.neg_dbm = {
128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
128, 128
},
.result = -128,
},
{
.desc = "Biggest possible value, all filled",
.neg_dbm = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0,
},
.result = 0,
},
{
.desc = "Smallest possible value, partial filled",
.neg_dbm = {
128, 128, 128, 128, 128, 128, 128, 128, 128, 128,
0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff,
},
.result = -128,
},
{
.desc = "Biggest possible value, partial filled",
.neg_dbm = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff,
},
.result = 0,
},
{
.desc = "Adding -80dBm to -75dBm until it is still rounded to -79dBm",
.neg_dbm = {
75, 80, 80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 0xff, 0xff, 0xff,
0xff, 0xff,
},
.result = -79,
},
{
.desc = "Adding -80dBm to -75dBm until it is just rounded to -80dBm",
.neg_dbm = {
75, 80, 80, 80, 80, 80, 80, 80, 80, 80,
80, 80, 80, 80, 80, 80, 80, 80, 0xff, 0xff,
0xff, 0xff,
},
.result = -80,
},
};
KUNIT_ARRAY_PARAM_DESC(acs_average_db, acs_average_db_cases, desc)
static void test_acs_average_db(struct kunit *test)
{
const struct acs_average_db_case *params = test->param_value;
struct iwl_umac_scan_channel_survey_notif notif;
int i;
/* Test the values in the given order */
for (i = 0; i < ARRAY_SIZE(params->neg_dbm); i++)
notif.noise[i] = params->neg_dbm[i];
KUNIT_ASSERT_EQ(test,
iwl_mvm_average_dbm_values(¬if),
params->result);
/* Test in reverse order */
for (i = 0; i < ARRAY_SIZE(params->neg_dbm); i++)
notif.noise[ARRAY_SIZE(params->neg_dbm) - i - 1] =
params->neg_dbm[i];
KUNIT_ASSERT_EQ(test,
iwl_mvm_average_dbm_values(¬if),
params->result);
}
static struct kunit_case acs_average_db_case[] = {
KUNIT_CASE_PARAM(test_acs_average_db, acs_average_db_gen_params),
{}
};
static struct kunit_suite acs_average_db = {
.name = "iwlmvm-acs-average-db",
.test_cases = acs_average_db_case,
};
kunit_test_suite(acs_average_db);
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