arch/arm/src/stm32/stm32_rtc.c

/****************************************************************************
 * arch/arm/src/stm32/stm32_rtc.c
 *
 * 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.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include "chip.h"

/* This file is only a thin shell that includes the correct RTC
 * implementation for the selected STM32 family.  The correct file cannot be
 * selected by the make system because it needs the intelligence that only
 * exists in chip.h that can associate an STM32 part number with an STM32
 * family.
 */

/* The STM32 F1 has a simple battery-backed counter for its RTC and has a
 * separate block for the BKP registers.
 */

#if defined(CONFIG_STM32_STM32F10XX)
#  include "stm32_rtcounter.c"

/* The other families use a more traditional Realtime Clock/Calendar (RTCC)
 * with broken-out data/time in BCD format.  The backup registers are
 * integrated into the RTCC in these families.
 */

#elif defined(CONFIG_STM32_STM32F20XX) || \
      defined(CONFIG_STM32_STM32F30XX)
#  include "stm32_rtcc.c"
#elif defined(CONFIG_STM32_STM32L15XX)
#  include "stm32l15xxx_rtcc.c"
#elif defined(CONFIG_STM32_STM32F4XXX)
#  include "stm32f40xxx_rtcc.c"
#endif

/****************************************************************************
 * Public Functions
 ****************************************************************************/