mirror of https://github.com/ARMmbed/mbed-os.git
147 lines
4.0 KiB
C++
147 lines
4.0 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2016 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#if !DEVICE_LOWPOWERTIMER
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#error [NOT_SUPPORTED] Low power timer not supported for this target
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#endif
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#include "utest/utest.h"
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#include "unity/unity.h"
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#include "greentea-client/test_env.h"
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#include "mbed.h"
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#include "us_ticker_api.h"
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using namespace utest::v1;
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volatile static bool complete;
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static LowPowerTimeout lpt;
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/* Timeouts are quite arbitrary due to large number of boards with varying level of accuracy */
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#define LONG_TIMEOUT (100000)
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#define SHORT_TIMEOUT (600)
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void cb_done() {
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complete = true;
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}
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#if DEVICE_SLEEP
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void lp_timeout_1s_deepsleep(void)
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{
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complete = false;
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/*
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* Since deepsleep() may shut down the UART peripheral, we wait for 10ms
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* to allow for hardware serial buffers to completely flush.
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* This should be replaced with a better function that checks if the
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* hardware buffers are empty. However, such an API does not exist now,
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* so we'll use the wait_ms() function for now.
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*/
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wait_ms(10);
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/*
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* We use here lp_ticker_read() instead of us_ticker_read() for start and
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* end because the microseconds timer might be disable during deepsleep.
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*/
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timestamp_t start = lp_ticker_read();
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lpt.attach(&cb_done, 1);
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deepsleep();
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while (!complete);
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timestamp_t end = lp_ticker_read();
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/* It takes longer to wake up from deep sleep */
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TEST_ASSERT_UINT32_WITHIN(LONG_TIMEOUT, 1000000, end - start);
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TEST_ASSERT_TRUE(complete);
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}
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void lp_timeout_1s_sleep(void)
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{
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complete = false;
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timestamp_t start = us_ticker_read();
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lpt.attach(&cb_done, 1);
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sleep();
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while (!complete);
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timestamp_t end = us_ticker_read();
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TEST_ASSERT_UINT32_WITHIN(LONG_TIMEOUT, 1000000, end - start);
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TEST_ASSERT_TRUE(complete);
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}
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#endif /* DEVICE_SLEEP */
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void lp_timeout_us(uint32_t delay_us, uint32_t tolerance)
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{
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complete = false;
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timestamp_t start = us_ticker_read();
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lpt.attach_us(&cb_done, delay_us);
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while (!complete);
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timestamp_t end = us_ticker_read();
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/* Using RTC which is less accurate */
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TEST_ASSERT_UINT32_WITHIN(tolerance, delay_us, end - start);
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TEST_ASSERT_TRUE(complete);
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}
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void lp_timeout_5s(void)
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{
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lp_timeout_us(5000000, LONG_TIMEOUT);
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}
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void lp_timeout_1s(void)
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{
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lp_timeout_us(1000000, LONG_TIMEOUT);
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}
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void lp_timeout_1ms(void)
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{
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lp_timeout_us(1000, SHORT_TIMEOUT);
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}
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void lp_timeout_500us(void)
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{
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lp_timeout_us(500, SHORT_TIMEOUT);
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}
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utest::v1::status_t greentea_failure_handler(const Case *const source, const failure_t reason) {
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greentea_case_failure_abort_handler(source, reason);
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return STATUS_CONTINUE;
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}
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Case cases[] = {
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Case("500us LowPowerTimeout", lp_timeout_500us, greentea_failure_handler),
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Case("1ms LowPowerTimeout", lp_timeout_1ms, greentea_failure_handler),
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Case("1sec LowPowerTimeout", lp_timeout_1s, greentea_failure_handler),
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Case("5sec LowPowerTimeout", lp_timeout_5s, greentea_failure_handler),
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#if DEVICE_SLEEP
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Case("1sec LowPowerTimeout from sleep", lp_timeout_1s_sleep, greentea_failure_handler),
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Case("1sec LowPowerTimeout from deepsleep", lp_timeout_1s_deepsleep, greentea_failure_handler),
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#endif /* DEVICE_SLEEP */
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};
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utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
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GREENTEA_SETUP(20, "default_auto");
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return greentea_test_setup_handler(number_of_cases);
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}
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Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
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int main() {
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Harness::run(specification);
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}
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