/* * SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include <stdio.h> #include <inttypes.h> #include "unity.h" #include "unity_test_utils.h" #include "esp_attr.h" #include "driver/gptimer.h" static bool IRAM_ATTR on_gptimer_alarm_cb(gptimer_handle_t timer, const gptimer_alarm_event_data_t *edata, void *user_ctx) { uint32_t *alarm_counts = (uint32_t *)user_ctx; (*alarm_counts)++; return false; } static void IRAM_ATTR test_delay_post_cache_disable(void *args) { esp_rom_delay_us(1000); } TEST_CASE("gptimer_interrupt_iram_safe", "[gptimer]") { gptimer_handle_t gptimer = NULL; gptimer_config_t timer_config = { .clk_src = GPTIMER_CLK_SRC_DEFAULT, .direction = GPTIMER_COUNT_UP, .resolution_hz = 1 * 1000 * 1000, // 1MHz, 1 tick = 1us }; TEST_ESP_OK(gptimer_new_timer(&timer_config, &gptimer)); gptimer_event_callbacks_t cbs = { .on_alarm = on_gptimer_alarm_cb, }; uint32_t alarm_counts = 0; TEST_ESP_OK(gptimer_register_event_callbacks(gptimer, &cbs, &alarm_counts)); gptimer_alarm_config_t alarm_config = { .reload_count = 0, .alarm_count = 100, // 100us per alarm event .flags.auto_reload_on_alarm = true, }; TEST_ESP_OK(gptimer_set_alarm_action(gptimer, &alarm_config)); TEST_ESP_OK(gptimer_enable(gptimer)); TEST_ESP_OK(gptimer_start(gptimer)); vTaskDelay(pdMS_TO_TICKS(10)); printf("disable flash cache and check the alarm events are still in working\r\n"); for (int i = 0; i < 10; i++) { unity_utils_run_cache_disable_stub(test_delay_post_cache_disable, NULL); } printf("alarm counts: %"PRIu32"\r\n", alarm_counts); TEST_ASSERT_GREATER_THAN(150, alarm_counts); // delete gptimer TEST_ESP_OK(gptimer_stop(gptimer)); TEST_ESP_OK(gptimer_disable(gptimer)); TEST_ESP_OK(gptimer_del_timer(gptimer)); }