mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 00:51:42 +01:00
a73dd07d12
esp_light_sleep_start() will stall the other CPU via esp_ipc_isr_stall_other_cpu(). After stalling the other CPU, will call esp_clk_... API which themselves take locks. If the other stalled CPU is holding those locks, this will result in a deadlock. This commit adds a workaround calling esp_clk_private_lock() to take the lock before stalling the other CPU.
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2017-2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
/**
|
|
* @file esp_private/esp_timer_private.h
|
|
*
|
|
* @brief Interface between common and platform-specific parts of esp_timer.
|
|
*
|
|
* The functions in this header file are implemented for each supported SoC.
|
|
* High level functions defined in esp_timer.c call the functions here to
|
|
* interact with the hardware.
|
|
*
|
|
* Note: The functions from this file are marked as private and are used exclusively
|
|
* inside the IDF in the power management and sleep files.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief Notify esp_timer implementation that APB frequency has changed
|
|
*
|
|
* Called by the frequency switching code.
|
|
*
|
|
* @param apb_ticks_per_us new number of APB clock ticks per microsecond
|
|
*/
|
|
void esp_timer_private_update_apb_freq(uint32_t apb_ticks_per_us);
|
|
|
|
/**
|
|
* @brief Set esp_timer time to a certain value
|
|
*
|
|
* Called from light sleep code to synchronize esp_timer time with RTC time.
|
|
*
|
|
* @param new_us the value to be set to esp_timer time, in microseconds
|
|
*/
|
|
void esp_timer_private_set(uint64_t new_us);
|
|
|
|
/**
|
|
* @brief Adjust current esp_timer time by a certain value
|
|
*
|
|
* @param time_diff_us adjustment to apply to esp_timer time, in microseconds
|
|
*/
|
|
void esp_timer_private_advance(int64_t time_diff_us);
|
|
|
|
/**
|
|
* @brief obtain internal critical section used in the esp_timer implementation
|
|
* This can be used when a sequence of calls to esp_timer has to be made,
|
|
* and it is necessary that the state of the timer is consistent between
|
|
* the calls. Should be treated in the same way as a spinlock.
|
|
* Call esp_timer_private_unlock to release the lock
|
|
*/
|
|
void esp_timer_private_lock(void);
|
|
|
|
/**
|
|
* @brief counterpart of esp_timer_lock
|
|
*/
|
|
void esp_timer_private_unlock(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|