mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-04 09:01:40 +01:00
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
|
// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
#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 Adjust current esp_timer time by a certain value
|
||
|
|
*
|
||
|
|
* Called from light sleep code to synchronize esp_timer time with RTC time.
|
||
|
|
*
|
||
|
|
* @param time_us adjustment to apply to esp_timer time, in microseconds
|
||
|
|
*/
|
||
|
|
void esp_timer_private_advance(int64_t time_us);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief obtain internal critical section used 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_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
|