esp-idf/components/driver/include/driver/rtc_cntl.h

57 lines
2.0 KiB
C

// Copyright 2016-2017 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
#include <stdint.h>
#include "esp_err.h"
#include "esp_intr_alloc.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Register a handler for specific RTC_CNTL interrupts
*
* Multiple handlers can be registered using this function. Whenever an
* RTC interrupt happens, all handlers with matching rtc_intr_mask values
* will be called.
*
* @param handler handler function to call
* @param handler_arg argument to be passed to the handler
* @param rtc_intr_mask combination of RTC_CNTL_*_INT_ENA bits indicating the
* sources to call the handler for
* @return
* - ESP_OK on success
* - ESP_ERR_NO_MEM not enough memory to allocate handler structure
* - other errors returned by esp_intr_alloc
*/
esp_err_t rtc_isr_register(intr_handler_t handler, void* handler_arg,
uint32_t rtc_intr_mask);
/**
* @brief Deregister the handler previously registered using rtc_isr_register
* @param handler handler function to call (as passed to rtc_isr_register)
* @param handler_arg argument of the handler (as passed to rtc_isr_register)
* @return
* - ESP_OK on success
* - ESP_ERR_INVALID_STATE if a handler matching both handler and
* handler_arg isn't registered
*/
esp_err_t rtc_isr_deregister(intr_handler_t handler, void* handler_arg);
#ifdef __cplusplus
}
#endif