esp-idf/components/esp_system/include/esp_private/esp_ipc_isr.h
2022-01-13 21:28:08 +08:00

38 lines
1.1 KiB
C

/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "sdkconfig.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef CONFIG_ESP_IPC_ISR_ENABLE
/**
* @brief Initialize the IPC ISR feature, must be called for each CPU
*
* @note This function is called from ipc_task().
*
* This function initializes the IPC ISR feature and must be called before any other esp_ipc_isr...() functions.
* The IPC ISR feature allows for callbacks (written in assembly) to be run on a particular CPU in the context of a
* High Priority Interrupt.
*
* - This function will register a High Priority Interrupt for a CPU where it is called. The priority of the interrupts is dependent on
* the CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL option.
* - Callbacks written in assembly can then run in context of the registered High Priority Interrupts
* - Callbacks can be executed by calling esp_ipc_isr_asm_call() or esp_ipc_isr_asm_call_blocking()
*/
void esp_ipc_isr_init(void);
#endif // CONFIG_ESP_IPC_ISR_ENABLE
#ifdef __cplusplus
}
#endif