/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 H_NRF52_CLOCK_
#define H_NRF52_CLOCK_

#ifdef __cplusplus
 extern "C" {
#endif

/**
 * Request HFXO clock be turned on. Note that each request must have a
 * corresponding release.
 *
 * @return int 0: hfxo was already on. 1: hfxo was turned on.
 */
int nrf52_clock_hfxo_request(void);

/**
 * Release the HFXO; caller no longer needs the HFXO to be turned on. Each call
 * to release should have been preceeded by a corresponding call to request the
 * HFXO
 *
 *
 * @return int 0: HFXO not stopped by this call (others using it) 1: HFXO
 *         stopped.
 */
int nrf52_clock_hfxo_release(void);

#ifdef __cplusplus
}
#endif

#endif  /* H_NRF52_CLOCK_ */