78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/****************************************************************************
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* boards/arm/kinetis/freedom-k66f/src/k66_rtc.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <syslog.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/timers/rtc.h>
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#include "freedom-k66f.h"
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#include "kinetis_alarm.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: k66_rtc_initialize
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*
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* Description:
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* Called to initialize the RTC FREEDOM-K66F board.
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*
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****************************************************************************/
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int k66_rtc_initialize(void)
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{
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int ret = -EIO;
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struct rtc_lowerhalf_s *lower;
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/* Instantiate the KINETIS lower-half RTC driver */
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lower = kinetis_rtc_lowerhalf();
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if (!lower)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to instantiate the RTC lower-half driver\n");
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}
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else
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{
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/* Bind the lower half driver and register the combined RTC driver
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* as /dev/rtc0
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*/
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ret = rtc_initialize(0, lower);
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to bind/register the RTC driver: %d\n",
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ret);
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}
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}
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return ret;
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}
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