8  * Source file for the STM32 RTC driver
108 static inline ErrorStatus ll_func_init_alarm(RTC_TypeDef *rtc, uint32_t format,  in ll_func_init_alarm()  argument
112 	return LL_RTC_ALARM_Init(rtc, format, alarmStruct);  in ll_func_init_alarm()
114 	return LL_RTC_ALMA_Init(rtc, format, alarmStruct);  in ll_func_init_alarm()
118 static inline void ll_func_clear_alarm_flag(RTC_TypeDef *rtc)  in ll_func_clear_alarm_flag()  argument
121 	LL_RTC_ClearFlag_ALR(rtc);  in ll_func_clear_alarm_flag()
123 	LL_RTC_ClearFlag_ALRA(rtc);  in ll_func_clear_alarm_flag()
127 static inline uint32_t ll_func_is_active_alarm(RTC_TypeDef *rtc)  in ll_func_is_active_alarm()  argument
130 	return LL_RTC_IsActiveFlag_ALR(rtc);  in ll_func_is_active_alarm()
132 	return LL_RTC_IsActiveFlag_ALRA(rtc);  in ll_func_is_active_alarm()
136 static inline void ll_func_enable_interrupt_alarm(RTC_TypeDef *rtc)  in ll_func_enable_interrupt_alarm()  argument
139 	LL_RTC_EnableIT_ALR(rtc);  in ll_func_enable_interrupt_alarm()
141 	LL_RTC_EnableIT_ALRA(rtc);  in ll_func_enable_interrupt_alarm()
145 static inline void ll_func_disable_interrupt_alarm(RTC_TypeDef *rtc)  in ll_func_disable_interrupt_alarm()  argument
148 	LL_RTC_DisableIT_ALR(rtc);  in ll_func_disable_interrupt_alarm()
150 	LL_RTC_DisableIT_ALRA(rtc);  in ll_func_disable_interrupt_alarm()
155 static inline uint32_t ll_func_isenabled_interrupt_alarm(RTC_TypeDef *rtc)  in ll_func_isenabled_interrupt_alarm()  argument
158 	return LL_RTC_IsEnabledIT_ALR(rtc);  in ll_func_isenabled_interrupt_alarm()
160 	return LL_RTC_IsEnabledIT_ALRA(rtc);  in ll_func_isenabled_interrupt_alarm()
165 static inline void ll_func_enable_alarm(RTC_TypeDef *rtc)  in ll_func_enable_alarm()  argument
168 	ARG_UNUSED(rtc);  in ll_func_enable_alarm()
170 	LL_RTC_ALMA_Enable(rtc);  in ll_func_enable_alarm()
174 static inline void ll_func_disable_alarm(RTC_TypeDef *rtc)  in ll_func_disable_alarm()  argument
177 	ARG_UNUSED(rtc);  in ll_func_disable_alarm()
179 	LL_RTC_ALMA_Disable(rtc);  in ll_func_disable_alarm()
192 	/* Enable RTC bus clock */  in rtc_stm32_start()
194 		LOG_ERR("RTC clock enabling failed\n");  in rtc_stm32_start()
215 	/* Disable RTC bus clock */  in rtc_stm32_stop()
217 		LOG_ERR("RTC clock disabling failed\n");  in rtc_stm32_stop()
253 		rtc_date = LL_RTC_DATE_Get(RTC);  in rtc_stm32_read()
257 			rtc_time = LL_RTC_TIME_Get(RTC);  in rtc_stm32_read()
258 			rtc_subseconds = LL_RTC_TIME_GetSubSecond(RTC);  in rtc_stm32_read()
259 		} while (rtc_time != LL_RTC_TIME_Get(RTC));  in rtc_stm32_read()
261 		rtc_time = LL_RTC_TIME_Get(RTC);  in rtc_stm32_read()
264 	} while (rtc_date != LL_RTC_DATE_Get(RTC));  in rtc_stm32_read()
267 	/* RTC start time: 1st, Jan, 2000 */  in rtc_stm32_read()
281 	/* Return number of seconds since RTC init */  in rtc_stm32_read()
288 	/* The RTC counts up, except for the subsecond register which counts  in rtc_stm32_read()
310 	rtc_time = LL_RTC_TIME_Get(RTC);  in rtc_stm32_read()
421 	LL_RTC_DisableWriteProtection(RTC);  in rtc_stm32_set_alarm()
422 	ll_func_disable_alarm(RTC);  in rtc_stm32_set_alarm()
423 	LL_RTC_EnableWriteProtection(RTC);  in rtc_stm32_set_alarm()
425 	if (ll_func_init_alarm(RTC, LL_RTC_FORMAT_BIN, &rtc_alarm) != SUCCESS) {  in rtc_stm32_set_alarm()
429 	LL_RTC_DisableWriteProtection(RTC);  in rtc_stm32_set_alarm()
432 	LL_RTC_ALMA_SetSubSecondMask(RTC, 0xF);  in rtc_stm32_set_alarm()
433 	LL_RTC_ALMA_SetSubSecond(RTC, RTC_SYNCPRE - alarm_val_ss);  in rtc_stm32_set_alarm()
435 	ll_func_enable_alarm(RTC);  in rtc_stm32_set_alarm()
436 	ll_func_clear_alarm_flag(RTC);  in rtc_stm32_set_alarm()
437 	ll_func_enable_interrupt_alarm(RTC);  in rtc_stm32_set_alarm()
438 	LL_RTC_EnableWriteProtection(RTC);  in rtc_stm32_set_alarm()
466 	LL_RTC_DisableWriteProtection(RTC);  in rtc_stm32_cancel_alarm()
467 	ll_func_clear_alarm_flag(RTC);  in rtc_stm32_cancel_alarm()
468 	ll_func_disable_interrupt_alarm(RTC);  in rtc_stm32_cancel_alarm()
469 	ll_func_disable_alarm(RTC);  in rtc_stm32_cancel_alarm()
470 	LL_RTC_EnableWriteProtection(RTC);  in rtc_stm32_cancel_alarm()
480 	return ll_func_is_active_alarm(RTC) != 0;  in rtc_stm32_get_pending_int()
514 	if (ll_func_is_active_alarm(RTC) != 0  in rtc_stm32_isr()
516 	    || (data->irq_on_late && ll_func_isenabled_interrupt_alarm(RTC))  in rtc_stm32_isr()
520 		LL_RTC_DisableWriteProtection(RTC);  in rtc_stm32_isr()
521 		ll_func_clear_alarm_flag(RTC);  in rtc_stm32_isr()
522 		ll_func_disable_interrupt_alarm(RTC);  in rtc_stm32_isr()
523 		ll_func_disable_alarm(RTC);  in rtc_stm32_isr()
524 		LL_RTC_EnableWriteProtection(RTC);  in rtc_stm32_isr()
543 	/* in STM32U5 family RTC is not connected to EXTI */  in rtc_stm32_isr()
563 	/* Enable RTC bus clock */  in rtc_stm32_init()
576 	/* Enable RTC clock source */  in rtc_stm32_init()
591 	if (LL_RTC_DeInit(RTC) != SUCCESS) {  in rtc_stm32_init()
596 	if (LL_RTC_Init(RTC, ((LL_RTC_InitTypeDef *)  in rtc_stm32_init()
602 	LL_RTC_DisableWriteProtection(RTC);  in rtc_stm32_init()
603 	LL_RTC_EnableShadowRegBypass(RTC);  in rtc_stm32_init()
604 	LL_RTC_EnableWriteProtection(RTC);  in rtc_stm32_init()
611 	/* in STM32U5 family RTC is not connected to EXTI */  in rtc_stm32_init()
659 		/* Enable RTC bus clock */  in rtc_stm32_pm_action()