kopia lustrzana https://github.com/espressif/esp-idf
94 wiersze
3.7 KiB
C
94 wiersze
3.7 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_IPC_H__
|
|
#define __ESP_IPC_H__
|
|
|
|
#include <esp_err.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
/** @cond */
|
|
typedef void (*esp_ipc_func_t)(void* arg);
|
|
/** @endcond */
|
|
/*
|
|
* Inter-processor call APIs
|
|
*
|
|
* FreeRTOS provides several APIs which can be used to communicate between
|
|
* different tasks, including tasks running on different CPUs.
|
|
* This module provides additional APIs to run some code on the other CPU.
|
|
*
|
|
* These APIs can only be used when FreeRTOS scheduler is running.
|
|
*/
|
|
|
|
/**
|
|
* @brief Execute a function on the given CPU
|
|
*
|
|
* Run a given function on a particular CPU. The given function must accept a
|
|
* void* argument and return void. The given function is run in the context of
|
|
* the IPC task of the CPU specified by the cpu_id parameter. The calling task
|
|
* will be blocked until the IPC task begins executing the given function. If
|
|
* another IPC call is ongoing, the calling task will block until the other IPC
|
|
* call completes. The stack size allocated for the IPC task can be configured
|
|
* in the "Inter-Processor Call (IPC) task stack size" setting in menuconfig.
|
|
* Increase this setting if the given function requires more stack than default.
|
|
*
|
|
* @note In single-core mode, returns ESP_ERR_INVALID_ARG for cpu_id 1.
|
|
*
|
|
* @param[in] cpu_id CPU where the given function should be executed (0 or 1)
|
|
* @param[in] func Pointer to a function of type void func(void* arg) to be executed
|
|
* @param[in] arg Arbitrary argument of type void* to be passed into the function
|
|
*
|
|
* @return
|
|
* - ESP_ERR_INVALID_ARG if cpu_id is invalid
|
|
* - ESP_ERR_INVALID_STATE if the FreeRTOS scheduler is not running
|
|
* - ESP_OK otherwise
|
|
*/
|
|
esp_err_t esp_ipc_call(uint32_t cpu_id, esp_ipc_func_t func, void* arg);
|
|
|
|
|
|
/**
|
|
* @brief Execute a function on the given CPU and blocks until it completes
|
|
*
|
|
* Run a given function on a particular CPU. The given function must accept a
|
|
* void* argument and return void. The given function is run in the context of
|
|
* the IPC task of the CPU specified by the cpu_id parameter. The calling task
|
|
* will be blocked until the IPC task completes execution of the given function.
|
|
* If another IPC call is ongoing, the calling task will block until the other
|
|
* IPC call completes. The stack size allocated for the IPC task can be
|
|
* configured in the "Inter-Processor Call (IPC) task stack size" setting in
|
|
* menuconfig. Increase this setting if the given function requires more stack
|
|
* than default.
|
|
*
|
|
* @note In single-core mode, returns ESP_ERR_INVALID_ARG for cpu_id 1.
|
|
*
|
|
* @param[in] cpu_id CPU where the given function should be executed (0 or 1)
|
|
* @param[in] func Pointer to a function of type void func(void* arg) to be executed
|
|
* @param[in] arg Arbitrary argument of type void* to be passed into the function
|
|
*
|
|
* @return
|
|
* - ESP_ERR_INVALID_ARG if cpu_id is invalid
|
|
* - ESP_ERR_INVALID_STATE if the FreeRTOS scheduler is not running
|
|
* - ESP_OK otherwise
|
|
*/
|
|
esp_err_t esp_ipc_call_blocking(uint32_t cpu_id, esp_ipc_func_t func, void* arg);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ESP_IPC_H__ */
|