nuttx/arch/arm/src/stm32/stm32f40xxx_alarm.h

114 lines
4.2 KiB
C

/****************************************************************************
* arch/arm/src/include/stm32/stm32f0xxx_alarm.h
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Neil hancock - delegated to Gregory Nutt Mar 30, 2016
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_STM32_STM32F40XXX_ALARM_H
#define __ARCH_ARM_SRC_STM32_STM32F40XXX_ALARM_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <time.h>
#ifdef CONFIG_RTC_ALARM
/****************************************************************************
* Public Types
****************************************************************************/
typedef CODE void (*alm_callback_t)(FAR void *arg, unsigned int alarmid);
/* These features are known to map to STM32 RTC from stm32F4xx and appear to
* map to beyond stm32F4xx and stm32L0xx there appears to be a small variant
* with stm32F3 but do not map to stm32F0, F1, F2
*/
enum alm_id_e
{
RTC_ALARMA = 0, /* RTC ALARM A */
RTC_ALARMB, /* RTC ALARM B */
RTC_ALARM_LAST
};
/* Structure used to pass parmaters to set an alarm */
struct alm_setalarm_s
{
int as_id; /* enum alm_id_e */
struct tm as_time; /* Alarm expiration time */
alm_callback_t as_cb; /* Callback (if non-NULL) */
FAR void *as_arg; /* Argument for callback */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: stm32_rtc_setalarm
*
* Description:
* Set an alarm to an asbolute time using associated hardware.
*
* Input Parameters:
* alminfo - Information about the alarm configuration.
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
****************************************************************************/
int stm32_rtc_setalarm(FAR struct alm_setalarm_s *alminfo);
/****************************************************************************
* Name: stm32_rtc_cancelalarm
*
* Description:
* Cancel an alaram.
*
* Input Parameters:
* alarmid - Identifies the alarm to be cancelled
*
* Returned Value:
* Zero (OK) on success; a negated errno on failure
*
****************************************************************************/
int stm32_rtc_cancelalarm(enum alm_id_e alarmid);
#endif /* CONFIG_RTC_ALARM */
#endif /* __ARCH_ARM_SRC_STM32_STM32F40XXX_ALARM_H */