mirror of
https://github.com/espressif/esp-idf.git
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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/*
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* SPDX-FileCopyrightText: 2023 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 <stddef.h>
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#include <string.h>
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#include <sys/lock.h>
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#include <sys/param.h>
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#include "esp_attr.h"
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#include "esp_sleep.h"
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#include "soc/soc.h"
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#include "soc/rtc.h"
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#include "soc/soc_caps.h"
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#include "hal/rtc_cntl_ll.h"
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#include "hal/uart_ll.h"
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#include "sdkconfig.h"
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#include "esp_rom_uart.h"
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#include "esp_rom_sys.h"
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#ifdef CONFIG_IDF_TARGET_ESP32
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#include "esp32/rom/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rom/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "esp32c3/rom/rtc.h"
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#elif CONFIG_IDF_TARGET_ESP32H2
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#include "esp32h2/rom/rtc.h"
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#endif
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void RTC_IRAM_ATTR esp_wake_stub_sleep(esp_deep_sleep_wake_stub_fn_t new_stub)
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{
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#if SOC_PM_SUPPORT_DEEPSLEEP_CHECK_STUB_ONLY
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extern char _rtc_text_start[];
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#if CONFIG_ESP32S3_RTCDATA_IN_FAST_MEM
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extern char _rtc_noinit_end[];
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size_t rtc_fast_length = (size_t)_rtc_noinit_end - (size_t)_rtc_text_start;
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#else
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extern char _rtc_force_fast_end[];
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size_t rtc_fast_length = (size_t)_rtc_force_fast_end - (size_t)_rtc_text_start;
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#endif // CONFIG_ESP32S3_RTCDATA_IN_FAST_MEM
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esp_rom_set_rtc_wake_addr((esp_rom_wake_func_t)new_stub, rtc_fast_length);
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#else
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// Set the pointer of the wake stub function.
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REG_WRITE(RTC_ENTRY_ADDR_REG, (uint32_t)new_stub);
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set_rtc_memory_crc();
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#endif // SOC_PM_SUPPORT_DEEPSLEEP_CHECK_STUB_MEM
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// Go to sleep.
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rtc_cntl_ll_sleep_enable();
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// A few CPU cycles may be necessary for the sleep to start...
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while (true) {};
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// never reaches here.
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}
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void RTC_IRAM_ATTR esp_wake_stub_uart_tx_wait_idle(uint8_t uart_no)
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{
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while (!uart_ll_is_tx_idle(UART_LL_GET_HW(uart_no))) {};
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}
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void RTC_IRAM_ATTR esp_wake_stub_set_wakeup_time(uint64_t time_in_us)
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{
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uint64_t rtc_count_delta = rtc_cntl_ll_time_to_count(time_in_us);
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uint64_t rtc_curr_count = rtc_cntl_ll_get_rtc_time();
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rtc_cntl_ll_set_wakeup_timer(rtc_curr_count + rtc_count_delta);
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}
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uint32_t RTC_IRAM_ATTR esp_wake_stub_get_wakeup_cause(void)
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{
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return rtc_cntl_ll_get_wakeup_cause();
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}
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