379 lines
12 KiB
C
379 lines
12 KiB
C
#include "unity.h"
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#include <sys/time.h>
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#include <sys/param.h>
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#include "esp_sleep.h"
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#include "esp_clk.h"
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#include "driver/rtc_io.h"
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#include "soc/gpio_reg.h"
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#include "soc/rtc.h"
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#include "soc/uart_reg.h"
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#include "rom/uart.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "soc/rtc.h" // for wakeup trigger defines
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#include "soc/rtc_cntl_reg.h" // for read rtc registers directly (cause)
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#include "soc/soc.h" // for direct register read macros
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#include "rom/rtc.h"
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#include "esp_newlib.h"
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#define ESP_EXT0_WAKEUP_LEVEL_LOW 0
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#define ESP_EXT0_WAKEUP_LEVEL_HIGH 1
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static struct timeval tv_start, tv_stop;
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static void deep_sleep_task(void *arg)
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{
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esp_deep_sleep_start();
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}
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static void do_deep_sleep_from_app_cpu()
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{
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xTaskCreatePinnedToCore(&deep_sleep_task, "ds", 2048, NULL, 5, NULL, 1);
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// keep running some non-IRAM code
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vTaskSuspendAll();
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while (true) {
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;
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}
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}
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TEST_CASE("wake up from deep sleep using timer", "[deepsleep][reset=DEEPSLEEP_RESET]")
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{
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esp_sleep_enable_timer_wakeup(2000000);
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esp_deep_sleep_start();
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}
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TEST_CASE("light sleep followed by deep sleep", "[deepsleep][reset=DEEPSLEEP_RESET]")
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{
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esp_sleep_enable_timer_wakeup(1000000);
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esp_light_sleep_start();
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up from light sleep using timer", "[deepsleep]")
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{
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esp_sleep_enable_timer_wakeup(2000000);
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struct timeval tv_start, tv_stop;
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gettimeofday(&tv_start, NULL);
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esp_light_sleep_start();
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gettimeofday(&tv_stop, NULL);
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float dt = (tv_stop.tv_sec - tv_start.tv_sec) * 1e3f +
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(tv_stop.tv_usec - tv_start.tv_usec) * 1e-3f;
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TEST_ASSERT_INT32_WITHIN(500, 2000, (int) dt);
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}
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static void test_light_sleep(void* arg)
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{
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vTaskDelay(2);
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for (int i = 0; i < 1000; ++i) {
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printf("%d %d\n", xPortGetCoreID(), i);
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fflush(stdout);
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esp_light_sleep_start();
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}
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SemaphoreHandle_t done = (SemaphoreHandle_t) arg;
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xSemaphoreGive(done);
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vTaskDelete(NULL);
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}
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TEST_CASE("light sleep stress test", "[deepsleep]")
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{
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SemaphoreHandle_t done = xSemaphoreCreateCounting(2, 0);
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esp_sleep_enable_timer_wakeup(1000);
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xTaskCreatePinnedToCore(&test_light_sleep, "ls0", 4096, done, UNITY_FREERTOS_PRIORITY + 1, NULL, 0);
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#if portNUM_PROCESSORS == 2
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xTaskCreatePinnedToCore(&test_light_sleep, "ls1", 4096, done, UNITY_FREERTOS_PRIORITY + 1, NULL, 1);
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#endif
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xSemaphoreTake(done, portMAX_DELAY);
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#if portNUM_PROCESSORS == 2
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xSemaphoreTake(done, portMAX_DELAY);
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#endif
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vSemaphoreDelete(done);
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}
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TEST_CASE("light sleep stress test with periodic esp_timer", "[deepsleep]")
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{
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void timer_func(void* arg)
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{
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ets_delay_us(50);
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}
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SemaphoreHandle_t done = xSemaphoreCreateCounting(2, 0);
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esp_sleep_enable_timer_wakeup(1000);
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esp_timer_handle_t timer;
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esp_timer_create_args_t config = {
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.callback = &timer_func,
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};
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TEST_ESP_OK(esp_timer_create(&config, &timer));
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esp_timer_start_periodic(timer, 500);
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xTaskCreatePinnedToCore(&test_light_sleep, "ls1", 4096, done, UNITY_FREERTOS_PRIORITY + 1, NULL, 0);
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#if portNUM_PROCESSORS == 2
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xTaskCreatePinnedToCore(&test_light_sleep, "ls1", 4096, done, UNITY_FREERTOS_PRIORITY + 1, NULL, 1);
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#endif
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xSemaphoreTake(done, portMAX_DELAY);
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#if portNUM_PROCESSORS == 2
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xSemaphoreTake(done, portMAX_DELAY);
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#endif
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vSemaphoreDelete(done);
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esp_timer_stop(timer);
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esp_timer_delete(timer);
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}
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#ifdef CONFIG_ESP32_RTC_CLOCK_SOURCE_EXTERNAL_CRYSTAL
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#define MAX_SLEEP_TIME_ERROR_US 200
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#else
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#define MAX_SLEEP_TIME_ERROR_US 100
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#endif
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TEST_CASE("light sleep duration is correct", "[deepsleep][ignore]")
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{
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// don't power down XTAL — powering it up takes different time on
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// different boards
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esp_sleep_pd_config(ESP_PD_DOMAIN_XTAL, ESP_PD_OPTION_ON);
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// run one light sleep without checking timing, to warm up the cache
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esp_sleep_enable_timer_wakeup(1000);
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esp_light_sleep_start();
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const int sleep_intervals_ms[] = {
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1, 1, 2, 3, 4, 5, 6, 7, 8, 10, 15,
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20, 25, 50, 100, 200, 500,
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};
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const int sleep_intervals_count = sizeof(sleep_intervals_ms)/sizeof(sleep_intervals_ms[0]);
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for (int i = 0; i < sleep_intervals_count; ++i) {
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uint64_t sleep_time = sleep_intervals_ms[i] * 1000;
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esp_sleep_enable_timer_wakeup(sleep_time);
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for (int repeat = 0; repeat < 5; ++repeat) {
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uint64_t start = esp_clk_rtc_time();
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int64_t start_hs = esp_timer_get_time();
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esp_light_sleep_start();
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int64_t stop_hs = esp_timer_get_time();
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uint64_t stop = esp_clk_rtc_time();
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int diff_us = (int) (stop - start);
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int diff_hs_us = (int) (stop_hs - start_hs);
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printf("%lld %d\n", sleep_time, (int) (diff_us - sleep_time));
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int32_t threshold = MAX(sleep_time / 100, MAX_SLEEP_TIME_ERROR_US);
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TEST_ASSERT_INT32_WITHIN(threshold, sleep_time, diff_us);
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TEST_ASSERT_INT32_WITHIN(threshold, sleep_time, diff_hs_us);
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fflush(stdout);
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}
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vTaskDelay(10/portTICK_PERIOD_MS);
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}
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}
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TEST_CASE("light sleep and frequency switching", "[deepsleep]")
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{
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#ifndef CONFIG_PM_ENABLE
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const int uart_clk_freq = REF_CLK_FREQ;
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CLEAR_PERI_REG_MASK(UART_CONF0_REG(CONFIG_CONSOLE_UART_NUM), UART_TICK_REF_ALWAYS_ON);
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uart_div_modify(CONFIG_CONSOLE_UART_NUM, (uart_clk_freq << 4) / CONFIG_CONSOLE_UART_BAUDRATE);
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#endif
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rtc_cpu_freq_config_t config_xtal, config_default;
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rtc_clk_cpu_freq_get_config(&config_default);
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rtc_clk_cpu_freq_mhz_to_config((int) rtc_clk_xtal_freq_get(), &config_xtal);
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esp_sleep_enable_timer_wakeup(1000);
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for (int i = 0; i < 1000; ++i) {
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if (i % 2 == 0) {
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rtc_clk_cpu_freq_set_config_fast(&config_xtal);
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} else {
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rtc_clk_cpu_freq_set_config_fast(&config_default);
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}
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printf("%d\n", i);
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fflush(stdout);
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esp_light_sleep_start();
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}
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}
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#ifndef CONFIG_FREERTOS_UNICORE
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TEST_CASE("enter deep sleep on APP CPU and wake up using timer", "[deepsleep][reset=DEEPSLEEP_RESET]")
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{
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esp_sleep_enable_timer_wakeup(2000000);
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do_deep_sleep_from_app_cpu();
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}
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#endif
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TEST_CASE("wake up using ext0 (13 high)", "[deepsleep][ignore]")
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{
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, ESP_EXT0_WAKEUP_LEVEL_HIGH));
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up using ext0 (13 low)", "[deepsleep][ignore]")
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{
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, ESP_EXT0_WAKEUP_LEVEL_LOW));
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up using ext1 when RTC_PERIPH is off (13 high)", "[deepsleep][ignore]")
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{
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// This test needs external pulldown
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup(BIT(GPIO_NUM_13), ESP_EXT1_WAKEUP_ANY_HIGH));
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up using ext1 when RTC_PERIPH is off (13 low)", "[deepsleep][ignore]")
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{
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// This test needs external pullup
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup(BIT(GPIO_NUM_13), ESP_EXT1_WAKEUP_ALL_LOW));
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up using ext1 when RTC_PERIPH is on (13 high)", "[deepsleep][ignore]")
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{
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON));
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ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup(BIT(GPIO_NUM_13), ESP_EXT1_WAKEUP_ANY_HIGH));
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esp_deep_sleep_start();
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}
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TEST_CASE("wake up using ext1 when RTC_PERIPH is on (13 low)", "[deepsleep][ignore]")
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{
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON));
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ESP_ERROR_CHECK(esp_sleep_enable_ext1_wakeup(BIT(GPIO_NUM_13), ESP_EXT1_WAKEUP_ALL_LOW));
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esp_deep_sleep_start();
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}
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static float get_time_ms(void)
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{
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gettimeofday(&tv_stop, NULL);
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float dt = (tv_stop.tv_sec - tv_start.tv_sec) * 1e3f +
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(tv_stop.tv_usec - tv_start.tv_usec) * 1e-3f;
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return fabs(dt);
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}
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static uint32_t get_cause()
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{
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uint32_t wakeup_cause = REG_GET_FIELD(RTC_CNTL_WAKEUP_STATE_REG, \
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RTC_CNTL_WAKEUP_CAUSE);
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return wakeup_cause;
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}
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// This test case verifies deactivation of trigger for wake up sources
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TEST_CASE("disable source trigger behavior", "[deepsleep]")
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{
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float dt = 0;
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printf("Setup timer and ext0 to wake up immediately from GPIO_13 \n");
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// Setup ext0 configuration to wake up almost immediately
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// The wakeup time is proportional to input capacitance * pullup resistance
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, ESP_EXT0_WAKEUP_LEVEL_HIGH));
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// Setup timer to wakeup with timeout
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esp_sleep_enable_timer_wakeup(2000000);
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// Save start time
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gettimeofday(&tv_start, NULL);
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esp_light_sleep_start();
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dt = get_time_ms();
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printf("Ext0 sleep time = %d \n", (int) dt);
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// Check wakeup from Ext0 using time measurement because wakeup cause is
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// not available in light sleep mode
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TEST_ASSERT_INT32_WITHIN(100, 100, (int) dt);
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TEST_ASSERT((get_cause() & RTC_EXT0_TRIG_EN) != 0);
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// Disable Ext0 source. Timer source should be triggered
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ESP_ERROR_CHECK(esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_EXT0));
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printf("Disable ext0 trigger and leave timer active.\n");
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gettimeofday(&tv_start, NULL);
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esp_light_sleep_start();
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dt = get_time_ms();
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printf("Timer sleep time = %d \n", (int) dt);
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TEST_ASSERT_INT32_WITHIN(500, 2000, (int) dt);
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// Additionally check wakeup cause
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TEST_ASSERT((get_cause() & RTC_TIMER_TRIG_EN) != 0);
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// Disable timer source.
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ESP_ERROR_CHECK(esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_TIMER));
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// Setup ext0 configuration to wake up immediately
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ESP_ERROR_CHECK(rtc_gpio_init(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pullup_en(GPIO_NUM_13));
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ESP_ERROR_CHECK(gpio_pulldown_dis(GPIO_NUM_13));
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ESP_ERROR_CHECK(esp_sleep_enable_ext0_wakeup(GPIO_NUM_13, ESP_EXT0_WAKEUP_LEVEL_HIGH));
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printf("Disable timer trigger to wake up from ext0 source.\n");
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gettimeofday(&tv_start, NULL);
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esp_light_sleep_start();
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dt = get_time_ms();
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printf("Ext0 sleep time = %d \n", (int) dt);
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TEST_ASSERT_INT32_WITHIN(100, 100, (int) dt);
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TEST_ASSERT((get_cause() & RTC_EXT0_TRIG_EN) != 0);
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// Check error message when source is already disabled
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esp_err_t err_code = esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_TIMER);
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TEST_ASSERT(err_code == ESP_ERR_INVALID_STATE);
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}
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static RTC_DATA_ATTR struct timeval start;
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static void trigger_deepsleep(void)
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{
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printf("Trigger deep sleep. Waiting for 10 sec ...\n");
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// Simulate the dispersion of the calibration coefficients at start-up.
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// Corrupt the calibration factor.
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esp_clk_slowclk_cal_set(esp_clk_slowclk_cal_get() / 2);
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esp_set_time_from_rtc();
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// Delay for time error accumulation.
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vTaskDelay(10000/portTICK_RATE_MS);
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// Save start time. Deep sleep.
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gettimeofday(&start, NULL);
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esp_sleep_enable_timer_wakeup(1000);
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// In function esp_deep_sleep_start() uses function esp_sync_counters_rtc_and_frc()
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// to prevent a negative time after wake up.
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esp_deep_sleep_start();
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}
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static void check_time_deepsleep(void)
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{
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struct timeval stop;
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RESET_REASON reason = rtc_get_reset_reason(0);
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TEST_ASSERT(reason == DEEPSLEEP_RESET);
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gettimeofday(&stop, NULL);
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// Time dt_ms must in any case be positive.
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int dt_ms = (stop.tv_sec - start.tv_sec) * 1000 + (stop.tv_usec - start.tv_usec) / 1000;
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printf("delta time = %d \n", dt_ms);
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TEST_ASSERT_MESSAGE(dt_ms > 0, "Time in deep sleep is negative");
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}
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TEST_CASE_MULTIPLE_STAGES("check a time after wakeup from deep sleep", "[deepsleep][reset=DEEPSLEEP_RESET]", trigger_deepsleep, check_time_deepsleep);
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