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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <kernel.h>
#include <ztest.h>
#include "ec_tasks.h"
#include "task.h"
/* Second for platform/ec task API (in microseconds). */
#define TASK_SEC(s) (s * 1000 * 1000)
K_SEM_DEFINE(task_done1, 0, 1);
K_SEM_DEFINE(task_done2, 0, 1);
K_SEM_DEFINE(test_ready1, 0, 1);
K_SEM_DEFINE(test_ready2, 0, 1);
static void (*task1)(void);
static void (*task2)(void);
static void run_test(void (*task1_run)(void), void (*task2_run)(void))
{
task1 = task1_run;
task2 = task2_run;
k_sem_give(&test_ready1);
k_sem_give(&test_ready2);
k_sem_take(&task_done1, K_FOREVER);
k_sem_take(&task_done2, K_FOREVER);
}
void task1_entry(void *p)
{
while (1) {
k_sem_take(&test_ready1, K_FOREVER);
task1();
k_sem_give(&task_done1);
}
}
void task2_entry(void *p)
{
while (1) {
k_sem_take(&test_ready2, K_FOREVER);
task2();
k_sem_give(&task_done2);
}
}
static void set_event_before_task_start1(void)
{
const uint32_t events = task_wait_event(TASK_SEC(2));
zassert_equal(events, 0xAAAA, "Should have 0xAAAA events");
}
static void set_event_before_task_start2(void)
{
/* Do nothing */
}
static void test_set_event_before_task_start(void)
{
/* Send event before tasks start */
task_set_event(TASK_ID_TASK_1, 0xAAAA, 0);
start_ec_tasks();
run_test(set_event_before_task_start1, set_event_before_task_start2);
}
static void task_get_current1(void)
{
zassert_equal(task_get_current(), TASK_ID_TASK_1, "ID matches");
}
static void task_get_current2(void)
{
zassert_equal(task_get_current(), TASK_ID_TASK_2, "ID matches");
}
static void test_task_get_current(void)
{
run_test(&task_get_current1, &task_get_current2);
}
static void timeout1(void)
{
const uint32_t start_ms = k_uptime_get();
const uint32_t events = task_wait_event(TASK_SEC(2));
const uint32_t end_ms = k_uptime_get();
zassert_equal(events, TASK_EVENT_TIMER, "Should have timeout event");
zassert_within(end_ms - start_ms, 2000, 100, "Timeout for 2 seconds");
}
static void timeout2(void)
{
/* Do nothing */
}
static void test_timeout(void)
{
run_test(&timeout1, &timeout2);
}
static void event_delivered1(void)
{
const uint32_t start_ms = k_uptime_get();
const uint32_t events = task_wait_event(-1);
const uint32_t end_ms = k_uptime_get();
zassert_equal(events, 0x1234, "Verify event bits");
zassert_within(end_ms - start_ms, 5000, 100, "Waited for 5 seconds");
}
static void event_delivered2(void)
{
k_sleep(K_SECONDS(5));
task_set_event(TASK_ID_TASK_1, 0x1234, 0);
}
static void test_event_delivered(void)
{
run_test(&event_delivered1, &event_delivered2);
}
static void event_mask_not_delivered1(void)
{
task_set_event(TASK_ID_TASK_2, 0x007F, 0);
}
static void event_mask_not_delivered2(void)
{
const uint32_t start_ms = k_uptime_get();
const uint32_t events = task_wait_event_mask(0x0080, TASK_SEC(7));
const uint32_t end_ms = k_uptime_get();
zassert_equal(events, TASK_EVENT_TIMER, "Should have timeout event");
zassert_within(end_ms - start_ms, 7000, 100, "Timeout for 7 seconds");
const uint32_t leftover_events = task_wait_event(0);
zassert_equal(leftover_events, 0x007F, "All events should be waiting");
}
static void test_event_mask_not_delivered(void)
{
run_test(&event_mask_not_delivered1, &event_mask_not_delivered2);
}
static void event_mask_extra1(void)
{
k_sleep(K_SECONDS(1));
task_set_event(TASK_ID_TASK_2, 0x00FF, 0);
}
static void event_mask_extra2(void)
{
const uint32_t start_ms = k_uptime_get();
const uint32_t events = task_wait_event_mask(0x0001, TASK_SEC(10));
const uint32_t end_ms = k_uptime_get();
zassert_equal(events, 0x0001, "Verify only waited for event");
zassert_within(end_ms - start_ms, 1000, 100, "Timeout for 1 second");
const uint32_t leftover_events = task_wait_event(0);
zassert_equal(leftover_events, 0x00FE, "All events should be waiting");
}
static void test_event_mask_extra(void)
{
run_test(&event_mask_extra1, &event_mask_extra2);
}
static void empty_set_mask1(void)
{
k_sleep(K_SECONDS(1));
/*
* It is generally invalid to set a 0 event, but this simulates a race
* condition and exercises fallback code in task_wait_event
*/
task_set_event(TASK_ID_TASK_2, 0, 0);
k_sleep(K_SECONDS(1));
task_set_event(TASK_ID_TASK_2, 0x1234, 0);
}
static void empty_set_mask2(void)
{
const uint32_t start_ms = k_uptime_get();
const uint32_t events = task_wait_event_mask(0x1234, TASK_SEC(10));
const uint32_t end_ms = k_uptime_get();
zassert_equal(events, 0x1234, "Verify only waited for event");
zassert_within(end_ms - start_ms, 2000, 100, "Timeout for 2 seconds");
}
static void test_empty_set_mask(void)
{
run_test(&empty_set_mask1, &empty_set_mask2);
}
void test_main(void)
{
/* Note that test_set_event_before_task_start calls start_ec_tasks */
ztest_test_suite(test_task_shim,
ztest_unit_test(test_set_event_before_task_start),
ztest_unit_test(test_task_get_current),
ztest_unit_test(test_timeout),
ztest_unit_test(test_event_delivered),
ztest_unit_test(test_event_mask_not_delivered),
ztest_unit_test(test_event_mask_extra),
ztest_unit_test(test_empty_set_mask));
ztest_run_test_suite(test_task_shim);
}
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