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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file STM32/rtc_lld.h
* @brief STM32 RTC subsystem low level driver header.
*
* @addtogroup RTC
* @{
*/
#ifndef _RTC_LLD_H_
#define _RTC_LLD_H_
#if HAL_USE_RTC || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief Switch to TRUE if you need callbacks from RTC. Switch to FALSE
* if you need only time keeping.
* @note Default is true.
*/
#if !defined(RTC_SUPPORTS_CALLBACKS) || defined(__DOXYGEN__)
#define RTC_SUPPORTS_CALLBACKS TRUE
#endif
/**
* @brief Clock source selecting. LSE by default.
*/
#if !defined(RTC_CLOCK_SOURCE) || defined(__DOXYGEN__)
#define RTC_CLOCK_SOURCE RCC_BDCR_RTCSEL_LSE
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if HAL_USE_RTC && !STM32_HAS_RTC
#error "RTC not present in the selected device"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Structure representing an RTC driver config.
*/
typedef struct {
/**
* @brief Overflow callback. Set it to NULL if not used.
*/
rtccb_t overflow_cb;
/**
* @brief Every second callback. Set it to NULL if not used.
*/
rtccb_t second_cb;
/**
* @brief Alarm callback. Set it to NULL if not used.
*/
rtccb_t alarm_cb;
}RTCConfig;
/**
* @brief Structure representing an RTC driver.
*/
struct RTCDriver{
/**
* @brief Pointer to RCT config.
*/
const RTCConfig *config;
};
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
extern RTCDriver RTCD;
#ifdef __cplusplus
extern "C" {
#endif
void rtc_lld_init(void);
void rtc_lld_start(RTCDriver *rtcp, const RTCConfig *rtccfgp);
void rtc_lld_stop(void);
void rtc_lld_set_time(uint32_t tv_sec);
uint32_t rtc_lld_get_sec(void);
uint16_t rtc_lld_get_msec(void);
uint32_t rtc_lld_get_alarm(void);
void rtc_lld_set_alarm(uint32_t);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_RTC */
#endif /* _RTC_LLD_H_ */
/** @} */
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