esp32: Add UTs to check the System time does not jump back
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1 changed files with 130 additions and 0 deletions
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@ -649,3 +649,133 @@ TEST_CASE("after esp_timer_impl_advance, timers run when expected", "[esp_timer]
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ref_clock_deinit();
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}
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#if !defined(CONFIG_FREERTOS_UNICORE) && defined(CONFIG_ESP32_DPORT_WORKAROUND)
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#include "soc/dport_reg.h"
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#include "soc/frc_timer_reg.h"
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#include "esp_ipc.h"
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static bool task_stop;
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static bool time_jumped;
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static void task_check_time(void *p)
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{
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int64_t t1 = 0, t2 = 0;
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while (task_stop == false) {
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t1 = t2;
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t2 = esp_timer_get_time();
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if (t1 > t2) {
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int64_t shift_us = t2 - t1;
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time_jumped = true;
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printf("System clock jumps back: %lli us\n", shift_us);
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}
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vTaskDelay(1);
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}
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vTaskDelete(NULL);
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}
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static void timer_callback(void* arg)
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{
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}
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static void dport_task(void *pvParameters)
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{
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while (task_stop == false) {
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DPORT_STALL_OTHER_CPU_START();
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ets_delay_us(3);
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DPORT_STALL_OTHER_CPU_END();
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}
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vTaskDelete(NULL);
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}
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TEST_CASE("esp_timer_impl_set_alarm does not set an alarm below the current time", "[esp_timer][timeout=62]")
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{
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const int max_timers = 2;
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time_jumped = false;
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task_stop = false;
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xTaskCreatePinnedToCore(task_check_time, "task_check_time", 4096, NULL, 5, NULL, 0);
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// dport_task is used here to interrupt the esp_timer_impl_set_alarm function.
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// To interrupt it we can use an interrupt with 4 or 5 levels which will run on CPU0.
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// Instead, an interrupt we use the dport workaround which has 4 interrupt level for stall CPU0.
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xTaskCreatePinnedToCore(dport_task, "dport_task", 4096, NULL, 5, NULL, 1);
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const esp_timer_create_args_t periodic_timer_args = {
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.callback = &timer_callback,
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};
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esp_timer_handle_t periodic_timer[max_timers];
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printf("timers created\n");
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esp_timer_create(&periodic_timer_args, &periodic_timer[0]);
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esp_timer_start_periodic(periodic_timer[0], 9000);
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esp_timer_create(&periodic_timer_args, &periodic_timer[1]);
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esp_timer_start_periodic(periodic_timer[1], 9000);
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vTaskDelay(60 * 1000 / portTICK_PERIOD_MS);
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task_stop = true;
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esp_timer_stop(periodic_timer[0]);
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esp_timer_delete(periodic_timer[0]);
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esp_timer_stop(periodic_timer[1]);
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esp_timer_delete(periodic_timer[1]);
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printf("timers deleted\n");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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TEST_ASSERT(time_jumped == false);
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}
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static esp_timer_handle_t oneshot_timer;
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static void oneshot_timer_callback(void* arg)
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{
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esp_timer_start_once(oneshot_timer, 5000);
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}
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static const esp_timer_create_args_t oneshot_timer_args = {
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.callback = &oneshot_timer_callback,
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};
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TEST_CASE("esp_timer_impl_set_alarm and using start_once do not lead that the System time jumps back", "[esp_timer][timeout=62]")
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{
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time_jumped = false;
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task_stop = false;
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xTaskCreatePinnedToCore(task_check_time, "task_check_time", 4096, NULL, 5, NULL, 0);
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// dport_task is used here to interrupt the esp_timer_impl_set_alarm function.
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// To interrupt it we can use an interrupt with 4 or 5 levels which will run on CPU0.
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// Instead, an interrupt we use the dport workaround which has 4 interrupt level for stall CPU0.
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xTaskCreatePinnedToCore(dport_task, "dport_task", 4096, NULL, 5, NULL, 1);
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const esp_timer_create_args_t periodic_timer_args = {
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.callback = &timer_callback,
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};
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esp_timer_handle_t periodic_timer;
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esp_timer_create(&periodic_timer_args, &periodic_timer);
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esp_timer_start_periodic(periodic_timer, 5000);
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esp_timer_create(&oneshot_timer_args, &oneshot_timer);
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esp_timer_start_once(oneshot_timer, 9990);
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printf("timers created\n");
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vTaskDelay(60 * 1000 / portTICK_PERIOD_MS);
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task_stop = true;
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esp_timer_stop(oneshot_timer);
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esp_timer_delete(oneshot_timer);
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printf("timers deleted\n");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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TEST_ASSERT(time_jumped == false);
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}
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#endif // !defined(CONFIG_FREERTOS_UNICORE) && defined(CONFIG_ESP32_DPORT_WORKAROUND)
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