mirror of
https://github.com/espressif/esp-idf.git
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63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2017-2022 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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// Provides strong definition for system time functions relied upon
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// by core components.
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#include "sdkconfig.h"
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#if CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER
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#include "esp_timer.h"
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#include "esp_timer_impl.h"
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#include "esp_system.h"
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#include "esp_newlib.h"
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#include "esp_log.h"
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#include "esp_private/startup_internal.h"
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#if CONFIG_IDF_TARGET_ESP32
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#include "esp32/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "esp32c3/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32C2
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#include "esp32c2/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32C6
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#include "esp32c6/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32H2
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#include "esp32h2/rtc.h"
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#endif
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__attribute__((unused)) static const char* TAG = "system_time";
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// Correction for underlying timer to keep definition
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// of system time consistent.
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static int64_t s_correction_us = 0;
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void esp_timer_impl_init_system_time(void)
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{
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s_correction_us = esp_rtc_get_time_us() - g_startup_time - esp_timer_impl_get_time();
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#if defined(CONFIG_ESP_TIME_FUNCS_USE_ESP_TIMER) && defined(CONFIG_ESP_TIME_FUNCS_USE_RTC_TIMER)
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esp_err_t err = esp_register_shutdown_handler(esp_sync_timekeeping_timers);
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if (err != ESP_OK) {
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ESP_LOGW(TAG, "Register shutdown handler failed, err = 0x%x", err);
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}
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#endif
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}
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int64_t IRAM_ATTR esp_system_get_time(void)
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{
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return esp_timer_get_time() + s_correction_us;
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}
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uint32_t IRAM_ATTR esp_system_get_time_resolution(void)
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{
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return 1000;
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}
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#endif
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