esp-idf/components/esp32/include/esp_freertos_hooks.h
Darian Leung 95d63137d1 bugfix/freertos_dual_core_hooks
This commit fixes bugs with the dual core changes to freeRTOS tick and idle hooks.
Interrupt watchdog now registers tick hooks to both cores.
API for cross core tick and idle hook registration were also added
2017-10-13 18:27:53 +08:00

118 lines
4.2 KiB
C

// Copyright 2015-2016 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.
#ifndef __ESP_FREERTOS_HOOKS_H__
#define __ESP_FREERTOS_HOOKS_H__
#include <stdbool.h>
#include "esp_err.h"
#ifdef __cplusplus
extern "C"
{
#endif
/*
Definitions for the tickhook and idlehook callbacks
*/
typedef bool (*esp_freertos_idle_cb_t)();
typedef void (*esp_freertos_tick_cb_t)();
/**
* @brief Register a callback to be called from the specified core's idle hook.
* The callback should return true if it should be called by the idle hook
* once per interrupt (or FreeRTOS tick), and return false if it should
* be called repeatedly as fast as possible by the idle hook.
*
* @warning Idle callbacks MUST NOT, UNDER ANY CIRCUMSTANCES, CALL
* A FUNCTION THAT MIGHT BLOCK.
*
* @param esp_freertos_idle_cb_t new_idle_cb : Callback to be called
* @param UBaseType_t cpuid : id of the core
*
* @return ESP_OK : Callback registered to the specified core's idle hook
* @return ESP_ERR_NO_MEM : No more space on the specified core's idle hook to register callback
* @return ESP_ERR_INVALID_ARG : cpuid is invalid
*/
esp_err_t esp_register_freertos_idle_hook_for_cpu(esp_freertos_idle_cb_t new_idle_cb, UBaseType_t cpuid);
/**
* @brief Register a callback to the idle hook of the core that calls this function.
* The callback should return true if it should be called by the idle hook
* once per interrupt (or FreeRTOS tick), and return false if it should
* be called repeatedly as fast as possible by the idle hook.
*
* @warning Idle callbacks MUST NOT, UNDER ANY CIRCUMSTANCES, CALL
* A FUNCTION THAT MIGHT BLOCK.
*
* @param esp_freertos_idle_cb_t new_idle_cb : Callback to be called
*
* @return ESP_OK : Callback registered to the calling core's idle hook
* @return ESP_ERR_NO_MEM : No more space the calling core's idle hook to register callback
*/
esp_err_t esp_register_freertos_idle_hook(esp_freertos_idle_cb_t new_idle_cb);
/**
* @brief Register a callback to be called from the specified core's tick hook.
*
* @param esp_freertos_tick_cb_t new_tick_cb : Callback to be called
* @param UBaseType_t cpuid : id of the core
*
* @return ESP_OK : Callback registered
* @return ESP_ERR_NO_MEM : No more space on the specified core's tick hook to register the callback
* @return ESP_ERR_INVALID_ARG : cpuid is invalid
*/
esp_err_t esp_register_freertos_tick_hook_for_cpu(esp_freertos_tick_cb_t new_tick_cb, UBaseType_t cpuid);
/**
* @brief Register a callback to be called from the calling core's tick hook.
*
* @param esp_freertos_tick_cb_t new_tick_cb : Callback to be called
*
* @return ESP_OK : Callback registered
* @return ESP_ERR_NO_MEM : No more space on the calling core's tick hook to register the callback
*/
esp_err_t esp_register_freertos_tick_hook(esp_freertos_tick_cb_t new_tick_cb);
/**
* @brief Unregister an idle callback. If the idle callback is registered to
* the idle hooks of both cores, the idle hook will be unregistered from
* both cores
*
* @param esp_freertos_idle_cb_t new_idle_cb : Callback to be unregistered
*
* @return void
*/
void esp_deregister_freertos_idle_hook(esp_freertos_idle_cb_t old_idle_cb);
/**
* @brief Unregister a tick callback. If the tick callback is registered to the
* tick hooks of both cores, the tick hook will be unregistered from
* both cores
*
* @param esp_freertos_idle_cb_t new_idle_cb : Callback to be unregistered
*
* @return void
*/
void esp_deregister_freertos_tick_hook(esp_freertos_tick_cb_t old_tick_cb);
#ifdef __cplusplus
}
#endif
#endif