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https://github.com/espressif/esp-idf.git
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bc2a2d3cde
GPTimer on C6 supports RC_FAST as the clock source. The benefit of this clock is that, the clock can sustain in light sleep. Added a new API to return the real resolution of the timer handle.
528 lines
22 KiB
C
528 lines
22 KiB
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdio.h>
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#include "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "unity.h"
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#include "driver/gptimer.h"
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#include "soc/soc_caps.h"
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#include "esp_attr.h"
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#if CONFIG_GPTIMER_ISR_IRAM_SAFE
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#define TEST_ALARM_CALLBACK_ATTR IRAM_ATTR
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#else
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#define TEST_ALARM_CALLBACK_ATTR
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#endif // CONFIG_GPTIMER_ISR_IRAM_SAFE
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TEST_CASE("gptimer_set_get_raw_count", "[gptimer]")
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{
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gptimer_config_t config = {
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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.resolution_hz = 1 * 1000 * 1000,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&config, &timers[i]));
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}
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TEST_ASSERT_EQUAL(ESP_ERR_NOT_FOUND, gptimer_new_timer(&config, &timers[0]));
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unsigned long long get_value = 0;
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printf("check gptimer initial count value\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &get_value));
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TEST_ASSERT_EQUAL(0, get_value);
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}
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unsigned long long set_values[] = {100, 500, 666};
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for (size_t j = 0; j < sizeof(set_values) / sizeof(set_values[0]); j++) {
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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printf("set raw count to %llu for gptimer %d\r\n", set_values[j], i);
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TEST_ESP_OK(gptimer_set_raw_count(timers[i], set_values[j]));
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}
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vTaskDelay(pdMS_TO_TICKS(10));
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &get_value));
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printf("get raw count of gptimer %d: %llu\r\n", i, get_value);
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TEST_ASSERT_EQUAL(set_values[j], get_value);
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}
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_del_timer(timers[i]));
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}
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}
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TEST_CASE("gptimer_wallclock_with_various_clock_sources", "[gptimer]")
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{
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gptimer_clock_source_t test_clk_srcs[] = SOC_GPTIMER_CLKS;
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uint32_t timer_resolution_hz[SOC_TIMER_GROUP_TOTAL_TIMERS];
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// test with various clock sources
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for (size_t i = 0; i < sizeof(test_clk_srcs) / sizeof(test_clk_srcs[0]); i++) {
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gptimer_config_t timer_config = {
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.clk_src = test_clk_srcs[i],
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.direction = GPTIMER_COUNT_UP,
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.resolution_hz = 1 * 1000 * 1000,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
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TEST_ESP_OK(gptimer_get_resolution(timers[i], &timer_resolution_hz[i]));
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}
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// start timer before enable should fail
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TEST_ESP_ERR(ESP_ERR_INVALID_STATE, gptimer_start(timers[0]));
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printf("enable timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_enable(timers[i]));
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}
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printf("start timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_start(timers[i]));
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}
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vTaskDelay(pdMS_TO_TICKS(20)); // 20ms = 20_000 ticks
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uint64_t value = 0;
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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// convert the raw count to us
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value = value * 1000000 / timer_resolution_hz[i];
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TEST_ASSERT_UINT_WITHIN(1000, 20000, value);
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}
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printf("stop timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_stop(timers[i]));
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}
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printf("check whether timers have stopped\r\n");
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vTaskDelay(pdMS_TO_TICKS(20));
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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printf("get raw count of gptimer %d: %llu\r\n", i, value);
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// convert the raw count to us
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value = value * 1000000 / timer_resolution_hz[i];
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TEST_ASSERT_UINT_WITHIN(1000, 20000, value);
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}
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printf("restart timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_start(timers[i]));
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}
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vTaskDelay(pdMS_TO_TICKS(20));
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printf("stop timers again\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_stop(timers[i]));
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}
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printf("check whether timers have stopped\r\n");
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vTaskDelay(pdMS_TO_TICKS(20));
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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printf("get raw count of gptimer %d: %llu\r\n", i, value);
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// convert the raw count to us
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value = value * 1000000 / timer_resolution_hz[i];
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TEST_ASSERT_UINT_WITHIN(2000, 40000, value);
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}
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printf("disable timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_disable(timers[i]));
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}
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printf("delete timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_del_timer(timers[i]));
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}
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}
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}
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/*
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Delta of the timer count after the triggering of the alarm. Delta must be sufficient large to account for the latency
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between the alarm triggering and the execution of the callback that actually stops the gptimer.
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*/
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#define GPTIMER_STOP_ON_ALARM_COUNT_DELTA 50
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TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_alarm_stop_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
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{
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TaskHandle_t task_handle = (TaskHandle_t)user_data;
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BaseType_t high_task_wakeup;
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gptimer_stop(timer);
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esp_rom_printf("count=%lld @alarm\n", edata->count_value);
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vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
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return high_task_wakeup == pdTRUE;
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}
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TEST_CASE("gptimer_stop_on_alarm", "[gptimer]")
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{
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TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
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gptimer_config_t timer_config = {
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.resolution_hz = 1 * 1000 * 1000,
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
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}
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gptimer_event_callbacks_t cbs = {
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.on_alarm = test_gptimer_alarm_stop_callback,
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};
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gptimer_alarm_config_t alarm_config = {};
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printf("start timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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alarm_config.alarm_count = 100000 * (i + 1);
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TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
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TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
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TEST_ESP_OK(gptimer_enable(timers[i]));
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TEST_ESP_OK(gptimer_start(timers[i]));
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printf("alarm value for gptimer %d: %llu\r\n", i, alarm_config.alarm_count);
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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}
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printf("check whether the timers have stopped in the ISR\r\n");
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vTaskDelay(pdMS_TO_TICKS(20));
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unsigned long long value = 0;
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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printf("get raw count of gptimer %d: %llu\r\n", i, value);
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TEST_ASSERT_UINT_WITHIN(GPTIMER_STOP_ON_ALARM_COUNT_DELTA, 100000 * (i + 1), value);
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}
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printf("restart timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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alarm_config.alarm_count = 100000 * (i + 1);
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// reset counter value to zero
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TEST_ESP_OK(gptimer_set_raw_count(timers[i], 0));
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TEST_ESP_OK(gptimer_start(timers[i]));
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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}
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printf("check whether the timers have stopped in the ISR\r\n");
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vTaskDelay(pdMS_TO_TICKS(20));
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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printf("get raw count of gptimer %d: %llu\r\n", i, value);
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TEST_ASSERT_UINT_WITHIN(GPTIMER_STOP_ON_ALARM_COUNT_DELTA, 100000 * (i + 1), value);
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_disable(timers[i]));
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TEST_ESP_OK(gptimer_del_timer(timers[i]));
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}
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}
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/*
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Delta of the timer count after the triggering of the alarm. Delta must be sufficient large to account for the latency
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between the alarm triggering and the capturing of the counter's value in the subsequent ISR.
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*/
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#define GPTIMER_AUTO_RELOAD_ON_ALARM_COUNT_DELTA 30
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TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_alarm_reload_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
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{
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TaskHandle_t task_handle = (TaskHandle_t)user_data;
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BaseType_t high_task_wakeup;
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esp_rom_printf("alarm isr count=%llu\r\n", edata->count_value);
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// check if the count value has been reloaded
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TEST_ASSERT_UINT_WITHIN(GPTIMER_AUTO_RELOAD_ON_ALARM_COUNT_DELTA, 100, edata->count_value);
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vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
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return high_task_wakeup == pdTRUE;
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}
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TEST_CASE("gptimer_auto_reload_on_alarm", "[gptimer]")
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{
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TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
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gptimer_config_t timer_config = {
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.resolution_hz = 1 * 1000 * 1000,
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
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}
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gptimer_event_callbacks_t cbs = {
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.on_alarm = test_gptimer_alarm_reload_callback,
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};
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gptimer_alarm_config_t alarm_config = {
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.reload_count = 100,
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.alarm_count = 100000,
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.flags.auto_reload_on_alarm = true,
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};
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printf("start timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
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TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
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TEST_ESP_OK(gptimer_enable(timers[i]));
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TEST_ESP_OK(gptimer_start(timers[i]));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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// delete should fail if timer is not disabled
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TEST_ESP_ERR(ESP_ERR_INVALID_STATE, gptimer_del_timer(timers[i]));
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TEST_ESP_OK(gptimer_stop(timers[i]));
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_disable(timers[i]));
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TEST_ESP_OK(gptimer_del_timer(timers[i]));
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}
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}
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TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_alarm_normal_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
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{
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TaskHandle_t task_handle = (TaskHandle_t)user_data;
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BaseType_t high_task_wakeup;
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esp_rom_printf("alarm isr count=%llu\r\n", edata->count_value);
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// check the count value at alarm event
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vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
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return high_task_wakeup == pdTRUE;
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}
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TEST_CASE("gptimer_one_shot_alarm", "[gptimer]")
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{
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TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
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gptimer_config_t timer_config = {
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.resolution_hz = 1 * 1000 * 1000,
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
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}
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gptimer_event_callbacks_t cbs = {
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.on_alarm = test_gptimer_alarm_normal_callback,
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};
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gptimer_alarm_config_t alarm_config = {
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.reload_count = 0,
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.alarm_count = 100000, // 100ms
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};
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printf("start timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
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TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
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TEST_ESP_OK(gptimer_enable(timers[i]));
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TEST_ESP_OK(gptimer_start(timers[i]));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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// no alarm event should trigger again, as auto-reload is not enabled and alarm value hasn't changed in the isr
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TEST_ASSERT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
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// the alarm is stopped, but the counter should still work
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uint64_t value = 0;
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TEST_ESP_OK(gptimer_get_raw_count(timers[i], &value));
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TEST_ASSERT_UINT_WITHIN(1000, 1100000, value); // 1100000 = 100ms alarm + 1s delay
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TEST_ESP_OK(gptimer_stop(timers[i]));
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}
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printf("restart timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_start(timers[i]));
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// alarm should be triggered immediately as the counter value has across the target alarm value already
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, 0));
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TEST_ESP_OK(gptimer_stop(timers[i]));
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}
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_disable(timers[i]));
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TEST_ESP_OK(gptimer_del_timer(timers[i]));
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}
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}
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TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_alarm_update_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
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{
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TaskHandle_t task_handle = (TaskHandle_t)user_data;
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BaseType_t high_task_wakeup;
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esp_rom_printf("alarm isr count=%llu\r\n", edata->count_value);
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gptimer_alarm_config_t alarm_config = {
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.alarm_count = edata->count_value + 100000, // alarm in next 100ms again
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};
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gptimer_set_alarm_action(timer, &alarm_config);
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vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
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return high_task_wakeup == pdTRUE;
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}
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TEST_CASE("gptimer_update_alarm_dynamically", "[gptimer]")
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{
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TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
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gptimer_config_t timer_config = {
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.resolution_hz = 1 * 1000 * 1000,
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.clk_src = GPTIMER_CLK_SRC_DEFAULT,
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.direction = GPTIMER_COUNT_UP,
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};
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gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
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}
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gptimer_event_callbacks_t cbs = {
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.on_alarm = test_gptimer_alarm_update_callback,
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};
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gptimer_alarm_config_t alarm_config = {
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.alarm_count = 100000, // initial alarm count, 100ms
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};
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printf("start timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
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TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
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TEST_ESP_OK(gptimer_enable(timers[i]));
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TEST_ESP_OK(gptimer_start(timers[i]));
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// check the alarm event for multiple times
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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TEST_ESP_OK(gptimer_stop(timers[i]));
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// check there won't be more interrupts triggered than expected
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TEST_ASSERT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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}
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|
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printf("restart timers\r\n");
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for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
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TEST_ESP_OK(gptimer_start(timers[i]));
|
|
// check the alarm event for multiple times
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|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
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|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
|
|
TEST_ESP_OK(gptimer_stop(timers[i]));
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|
// check there won't be more interrupts triggered than expected
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TEST_ASSERT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(500)));
|
|
}
|
|
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_disable(timers[i]));
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|
TEST_ESP_OK(gptimer_del_timer(timers[i]));
|
|
}
|
|
}
|
|
|
|
/*
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|
Delta of the timer count after the triggering of the alarm. Delta must be sufficient large to account for the latency
|
|
between the alarm triggering and the capturing of the counter's value in the subsequent ISR.
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|
*/
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|
#define GPTIMER_COUNT_DOWN_RELOAD_DELTA 30
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|
|
|
TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_count_down_reload_alarm_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
|
|
{
|
|
TaskHandle_t task_handle = (TaskHandle_t)user_data;
|
|
BaseType_t high_task_wakeup;
|
|
esp_rom_printf("alarm isr count=%llu\r\n", edata->count_value);
|
|
// check if the count value has been reloaded
|
|
TEST_ASSERT_UINT_WITHIN(GPTIMER_COUNT_DOWN_RELOAD_DELTA, 200000, edata->count_value);
|
|
vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
|
|
return high_task_wakeup == pdTRUE;
|
|
}
|
|
|
|
TEST_CASE("gptimer_count_down_reload", "[gptimer]")
|
|
{
|
|
TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
|
|
|
|
gptimer_config_t timer_config = {
|
|
.resolution_hz = 1 * 1000 * 1000,
|
|
.clk_src = GPTIMER_CLK_SRC_DEFAULT,
|
|
.direction = GPTIMER_COUNT_DOWN,
|
|
};
|
|
gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
|
|
TEST_ESP_OK(gptimer_set_raw_count(timers[i], 200000));
|
|
}
|
|
|
|
gptimer_event_callbacks_t cbs = {
|
|
.on_alarm = test_gptimer_count_down_reload_alarm_callback,
|
|
};
|
|
gptimer_alarm_config_t alarm_config = {
|
|
.reload_count = 200000, // 200ms
|
|
.alarm_count = 0,
|
|
.flags.auto_reload_on_alarm = true,
|
|
};
|
|
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
|
|
TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
|
|
TEST_ESP_OK(gptimer_enable(timers[i]));
|
|
TEST_ESP_OK(gptimer_start(timers[i]));
|
|
// check twice, as it's a period event
|
|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
|
|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
|
|
TEST_ESP_OK(gptimer_stop(timers[i]));
|
|
}
|
|
|
|
printf("restart gptimer with previous configuration\r\n");
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_start(timers[i]));
|
|
// check twice, as it's a period event
|
|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
|
|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(1000)));
|
|
TEST_ESP_OK(gptimer_stop(timers[i]));
|
|
}
|
|
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_disable(timers[i]));
|
|
TEST_ESP_OK(gptimer_del_timer(timers[i]));
|
|
}
|
|
}
|
|
|
|
TEST_ALARM_CALLBACK_ATTR static bool test_gptimer_overflow_reload_callback(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_data)
|
|
{
|
|
TaskHandle_t task_handle = (TaskHandle_t)user_data;
|
|
BaseType_t high_task_wakeup;
|
|
// Note: esp_rom_printf can't print value with 64 bit length, so the following print result is meaningless, but as an incidator for test that the alarm has fired
|
|
esp_rom_printf("alarm isr count=%llu\r\n", edata->count_value);
|
|
vTaskNotifyGiveFromISR(task_handle, &high_task_wakeup);
|
|
return high_task_wakeup == pdTRUE;
|
|
}
|
|
|
|
TEST_CASE("gptimer_overflow", "[gptimer]")
|
|
{
|
|
TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
|
|
|
|
gptimer_config_t timer_config = {
|
|
.resolution_hz = 1 * 1000 * 1000,
|
|
.clk_src = GPTIMER_CLK_SRC_DEFAULT,
|
|
.direction = GPTIMER_COUNT_UP,
|
|
};
|
|
gptimer_handle_t timers[SOC_TIMER_GROUP_TOTAL_TIMERS];
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_new_timer(&timer_config, &timers[i]));
|
|
}
|
|
#if SOC_TIMER_GROUP_COUNTER_BIT_WIDTH == 64
|
|
uint64_t reload_at = UINT64_MAX - 100000;
|
|
#else
|
|
uint64_t reload_at = (1ULL << SOC_TIMER_GROUP_COUNTER_BIT_WIDTH) - 100000;
|
|
#endif
|
|
gptimer_event_callbacks_t cbs = {
|
|
.on_alarm = test_gptimer_overflow_reload_callback,
|
|
};
|
|
gptimer_alarm_config_t alarm_config = {
|
|
.reload_count = reload_at,
|
|
.alarm_count = 100000, // 100ms
|
|
.flags.auto_reload_on_alarm = true,
|
|
};
|
|
// The counter should start from [COUNTER_MAX-100000] and overflows to [0] and continue, then reached to alarm value [100000], reloaded to [COUNTER_MAX-100000] automatically
|
|
// thus the period should be 200ms
|
|
printf("start timers\r\n");
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_set_alarm_action(timers[i], &alarm_config));
|
|
TEST_ESP_OK(gptimer_register_event_callbacks(timers[i], &cbs, task_handle));
|
|
// we start from the reload value
|
|
TEST_ESP_OK(gptimer_set_raw_count(timers[i], reload_at));
|
|
TEST_ESP_OK(gptimer_enable(timers[i]));
|
|
TEST_ESP_OK(gptimer_start(timers[i]));
|
|
TEST_ASSERT_NOT_EQUAL(0, ulTaskNotifyTake(pdFALSE, pdMS_TO_TICKS(400)));
|
|
TEST_ESP_OK(gptimer_stop(timers[i]));
|
|
}
|
|
|
|
for (int i = 0; i < SOC_TIMER_GROUP_TOTAL_TIMERS; i++) {
|
|
TEST_ESP_OK(gptimer_disable(timers[i]));
|
|
TEST_ESP_OK(gptimer_del_timer(timers[i]));
|
|
}
|
|
}
|