Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/TESTS/mbed_drivers/timeout/main.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /*
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
marcozecchini 0:9fca2b23d0ba 3 * SPDX-License-Identifier: Apache-2.0
marcozecchini 0:9fca2b23d0ba 4 *
marcozecchini 0:9fca2b23d0ba 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
marcozecchini 0:9fca2b23d0ba 6 * not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 7 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 8 *
marcozecchini 0:9fca2b23d0ba 9 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
marcozecchini 0:9fca2b23d0ba 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 14 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 15 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 16 */
marcozecchini 0:9fca2b23d0ba 17
marcozecchini 0:9fca2b23d0ba 18
marcozecchini 0:9fca2b23d0ba 19 /*
marcozecchini 0:9fca2b23d0ba 20 * Tests is to measure the accuracy of Timeout over a period of time
marcozecchini 0:9fca2b23d0ba 21 *
marcozecchini 0:9fca2b23d0ba 22 *
marcozecchini 0:9fca2b23d0ba 23 * 1) DUT would start to update callback_trigger_count every milli sec
marcozecchini 0:9fca2b23d0ba 24 * 2) Host would query what is current count base_time, Device responds by the callback_trigger_count
marcozecchini 0:9fca2b23d0ba 25 * 3) Host after waiting for measurement stretch. It will query for device time again final_time.
marcozecchini 0:9fca2b23d0ba 26 * 4) Host computes the drift considering base_time, final_time, transport delay and measurement stretch
marcozecchini 0:9fca2b23d0ba 27 * 5) Finally host send the results back to device pass/fail based on tolerance.
marcozecchini 0:9fca2b23d0ba 28 * 6) More details on tests can be found in timing_drift_auto.py
marcozecchini 0:9fca2b23d0ba 29 *
marcozecchini 0:9fca2b23d0ba 30 */
marcozecchini 0:9fca2b23d0ba 31
marcozecchini 0:9fca2b23d0ba 32 #include "mbed.h"
marcozecchini 0:9fca2b23d0ba 33 #include "greentea-client/test_env.h"
marcozecchini 0:9fca2b23d0ba 34 #include "utest/utest.h"
marcozecchini 0:9fca2b23d0ba 35 #include "unity/unity.h"
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 using namespace utest::v1;
marcozecchini 0:9fca2b23d0ba 38
marcozecchini 0:9fca2b23d0ba 39 #define PERIOD_US 10000
marcozecchini 0:9fca2b23d0ba 40
marcozecchini 0:9fca2b23d0ba 41 volatile int ticker_count = 0;
marcozecchini 0:9fca2b23d0ba 42 volatile uint32_t callback_trigger_count = 0;
marcozecchini 0:9fca2b23d0ba 43 static const int test_timeout = 240;
marcozecchini 0:9fca2b23d0ba 44 Timeout timeout;
marcozecchini 0:9fca2b23d0ba 45
marcozecchini 0:9fca2b23d0ba 46 void set_incremeant_count() {
marcozecchini 0:9fca2b23d0ba 47 timeout.attach_us(set_incremeant_count, PERIOD_US);
marcozecchini 0:9fca2b23d0ba 48 ++callback_trigger_count;
marcozecchini 0:9fca2b23d0ba 49 }
marcozecchini 0:9fca2b23d0ba 50
marcozecchini 0:9fca2b23d0ba 51 void test_case_timeout() {
marcozecchini 0:9fca2b23d0ba 52
marcozecchini 0:9fca2b23d0ba 53 char _key[11] = { };
marcozecchini 0:9fca2b23d0ba 54 char _value[128] = { };
marcozecchini 0:9fca2b23d0ba 55 int expected_key = 1;
marcozecchini 0:9fca2b23d0ba 56 uint8_t results_size = 0;
marcozecchini 0:9fca2b23d0ba 57
marcozecchini 0:9fca2b23d0ba 58 greentea_send_kv("timing_drift_check_start", 0);
marcozecchini 0:9fca2b23d0ba 59 timeout.attach_us(set_incremeant_count, PERIOD_US);
marcozecchini 0:9fca2b23d0ba 60
marcozecchini 0:9fca2b23d0ba 61 // wait for 1st signal from host
marcozecchini 0:9fca2b23d0ba 62 do {
marcozecchini 0:9fca2b23d0ba 63 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 64 expected_key = strcmp(_key, "base_time");
marcozecchini 0:9fca2b23d0ba 65 } while (expected_key);
marcozecchini 0:9fca2b23d0ba 66
marcozecchini 0:9fca2b23d0ba 67 greentea_send_kv(_key, callback_trigger_count * PERIOD_US);
marcozecchini 0:9fca2b23d0ba 68
marcozecchini 0:9fca2b23d0ba 69 // wait for 2nd signal from host
marcozecchini 0:9fca2b23d0ba 70 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 71 greentea_send_kv(_key, callback_trigger_count * PERIOD_US);
marcozecchini 0:9fca2b23d0ba 72
marcozecchini 0:9fca2b23d0ba 73 //get the results from host
marcozecchini 0:9fca2b23d0ba 74 greentea_parse_kv(_key, _value, sizeof(_key), sizeof(_value));
marcozecchini 0:9fca2b23d0ba 75
marcozecchini 0:9fca2b23d0ba 76 TEST_ASSERT_EQUAL_STRING_MESSAGE("pass", _key,"Host side script reported a fail...");
marcozecchini 0:9fca2b23d0ba 77 }
marcozecchini 0:9fca2b23d0ba 78
marcozecchini 0:9fca2b23d0ba 79 // Test casess
marcozecchini 0:9fca2b23d0ba 80 Case cases[] = { Case("Timers: toggle on/off", test_case_timeout), };
marcozecchini 0:9fca2b23d0ba 81
marcozecchini 0:9fca2b23d0ba 82 utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
marcozecchini 0:9fca2b23d0ba 83 GREENTEA_SETUP(test_timeout, "timing_drift_auto");
marcozecchini 0:9fca2b23d0ba 84 return greentea_test_setup_handler(number_of_cases);
marcozecchini 0:9fca2b23d0ba 85 }
marcozecchini 0:9fca2b23d0ba 86
marcozecchini 0:9fca2b23d0ba 87 Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
marcozecchini 0:9fca2b23d0ba 88
marcozecchini 0:9fca2b23d0ba 89 int main() {
marcozecchini 0:9fca2b23d0ba 90 Harness::run(specification);
marcozecchini 0:9fca2b23d0ba 91 }