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Adding interface for RTC drivers

This commit is contained in:
Silvano Seva 2020-10-22 23:29:28 +02:00 committed by Niccolò Izzo
parent 9b20e5010c
commit 99b2280f76
2 changed files with 20 additions and 19 deletions
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19
platform/mcu/STM32F4xx/drivers/rtc.h → openrtx/include/interfaces/rtc.h
View File

@ -1,5 +1,7 @@
/*************************************************************************** /***************************************************************************
* Copyright (C) 2020 by Silvano Seva IU2KWO and Niccolò Izzo IU2KIN * * Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN *
* Silvano Seva IU2KWO *
* * * *
* This program is free software; you can redistribute it and/or modify * * This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by * * it under the terms of the GNU General Public License as published by *
@ -19,14 +21,13 @@
#define RTC_H #define RTC_H
#include <stdint.h> #include <stdint.h>
#include "stm32f4xx.h"
/** /**
* Driver for STM32 real time clock, providing both calendar and clock * Standard interface for real time clock drivers, providing both calendar and
* functionalities. * clock functionalities.
* *
* RTC is active also when radio is powered off, thanks to the internal * Depending on hardware, RTC is active also when radio is powered off, thanks
* lithium backup battery. * to the internal lithium backup battery.
*/ */
typedef struct typedef struct
@ -42,14 +43,12 @@ typedef struct
}curTime_t; }curTime_t;
/** /**
* Initialise and start RTC, which uses as clock source the external 32.768kHz * Initialise and start RTC.
* crystal connected to PC14 and PC15 (indicated with LSE in STM32 reference
* manual).
*/ */
void rtc_init(); void rtc_init();
/** /**
* Shutdown RTC and external 32.768kHz clock source. * Shutdown RTC.
*/ */
void rtc_shutdown(); void rtc_shutdown();

20
platform/mcu/STM32F4xx/drivers/rtc.c
View File

@ -1,5 +1,7 @@
/*************************************************************************** /***************************************************************************
* Copyright (C) 2020 by Silvano Seva IU2KWO and Niccolò Izzo IU2KIN * * Copyright (C) 2020 by Federico Amedeo Izzo IU2NUO, *
* Niccolò Izzo IU2KIN *
* Silvano Seva IU2KWO *
* * * *
* This program is free software; you can redistribute it and/or modify * * This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by * * it under the terms of the GNU General Public License as published by *
@ -15,9 +17,9 @@
* along with this program; if not, see <http://www.gnu.org/licenses/> * * along with this program; if not, see <http://www.gnu.org/licenses/> *
***************************************************************************/ ***************************************************************************/
#include <os.h>
#include "rtc.h" #include "rtc.h"
#include "FreeRTOS.h" #include "stm32f4xx.h"
#include "task.h"
void rtc_init() void rtc_init()
{ {
@ -65,13 +67,13 @@ void rtc_setTime(curTime_t t)
time &= RTC_TR_HT | RTC_TR_HU | RTC_TR_MNT | RTC_TR_MNU | RTC_TR_ST | RTC_TR_SU; time &= RTC_TR_HT | RTC_TR_HU | RTC_TR_MNT | RTC_TR_MNU | RTC_TR_ST | RTC_TR_SU;
/* Enter initialisation mode and update registers */ /* Enter initialisation mode and update registers */
taskENTER_CRITICAL(); CPU_CRITICAL_ENTER();
RTC->ISR |= RTC_ISR_INIT; RTC->ISR |= RTC_ISR_INIT;
while((RTC->ISR & RTC_ISR_INITF) == 0) ; while((RTC->ISR & RTC_ISR_INITF) == 0) ;
RTC->TR = time; RTC->TR = time;
RTC->DR = date; RTC->DR = date;
RTC->ISR &= ~RTC_ISR_INIT; RTC->ISR &= ~RTC_ISR_INIT;
taskEXIT_CRITICAL(); CPU_CRITICAL_EXIT();
} }
void rtc_setHour(uint8_t hours, uint8_t minutes, uint8_t seconds) void rtc_setHour(uint8_t hours, uint8_t minutes, uint8_t seconds)
@ -118,17 +120,17 @@ void rtc_dstSet()
{ {
/* If BKP bit is set, DST has been already set */ /* If BKP bit is set, DST has been already set */
if(RTC->CR & RTC_CR_BCK) return; if(RTC->CR & RTC_CR_BCK) return;
taskENTER_CRITICAL(); CPU_CRITICAL_ENTER();
RTC->CR |= RTC_CR_BCK | RTC_CR_ADD1H; RTC->CR |= RTC_CR_BCK | RTC_CR_ADD1H;
taskEXIT_CRITICAL(); CPU_CRITICAL_EXIT();
} }
void rtc_dstClear() void rtc_dstClear()
{ {
/* If BKP bit is cleared, DST has been already removed */ /* If BKP bit is cleared, DST has been already removed */
if((RTC->CR & RTC_CR_BCK) == 0) return; if((RTC->CR & RTC_CR_BCK) == 0) return;
taskENTER_CRITICAL(); CPU_CRITICAL_ENTER();
RTC->CR &= ~RTC_CR_BCK; RTC->CR &= ~RTC_CR_BCK;
RTC->CR |= RTC_CR_SUB1H; RTC->CR |= RTC_CR_SUB1H;
taskEXIT_CRITICAL(); CPU_CRITICAL_EXIT();
} }