5  * SPDX-License-Identifier: Apache-2.0
22 #define _IFX_CAT1_RTC_STATE_UNINITIALIZED 0
30 #if defined(SRSS_BACKUP_NUM_BREG3) && (SRSS_BACKUP_NUM_BREG3 > 0)
31 #define _IFX_CAT1_RTC_BREG (BACKUP->BREG_SET3[SRSS_BACKUP_NUM_BREG3 - 1])
32 #elif defined(SRSS_BACKUP_NUM_BREG2) && (SRSS_BACKUP_NUM_BREG2 > 0)
33 #define _IFX_CAT1_RTC_BREG (BACKUP->BREG_SET2[SRSS_BACKUP_NUM_BREG2 - 1])
34 #elif defined(SRSS_BACKUP_NUM_BREG1) && (SRSS_BACKUP_NUM_BREG1 > 0)
35 #define _IFX_CAT1_RTC_BREG (BACKUP->BREG_SET1[SRSS_BACKUP_NUM_BREG1 - 1])
36 #elif defined(SRSS_BACKUP_NUM_BREG0) && (SRSS_BACKUP_NUM_BREG0 > 0)
37 #define _IFX_CAT1_RTC_BREG (BACKUP->BREG_SET0[SRSS_BACKUP_NUM_BREG0 - 1])
41 #define _IFX_CAT1_RTC_BREG_CENTURY_Pos 0UL
42 #define _IFX_CAT1_RTC_BREG_CENTURY_Msk 0x0000FFFFUL
44 #define _IFX_CAT1_RTC_BREG_STATE_Msk   0xFFFF0000UL
73 /* Convert parts per billion to groupings of 128 ticks added or removed from one hour of clock
76  * ROUND_DOWN(ppb * 32768Hz * 60min * 60sec / 1000000000, 128) / 128
77  * ROUND_DOWN(ppb * 117964800 / 1000000000, 128) / 128
78  * ROUND_DOWN(ppb * 9216 / 78125, 128) / 128
80 #define PPB_TO_WCO_PULSE_SETS(ppb) ((ROUND_DOWN((ppb * 9216 / 78125), 128)) / 128)
82 /* Convert groupings of 128 ticks added or removed from one hour of clock cycles at
85  * wps * 128 * 1000000000 / 32768Hz * 60min * 60sec
123 	z_time->tm_sec = (int)pdlTime->sec;  in _ifx_cat1_rtc_from_pdl_time()
124 	z_time->tm_min = (int)pdlTime->min;  in _ifx_cat1_rtc_from_pdl_time()
125 	z_time->tm_hour = (int)pdlTime->hour;  in _ifx_cat1_rtc_from_pdl_time()
126 	z_time->tm_mday = (int)pdlTime->date;  in _ifx_cat1_rtc_from_pdl_time()
127 	z_time->tm_year = (int)(year - _IFX_CAT1_RTC_TM_YEAR_BASE);  in _ifx_cat1_rtc_from_pdl_time()
132 	z_time->tm_mon = (int)(pdlTime->month - 1u);  in _ifx_cat1_rtc_from_pdl_time()
133 	z_time->tm_wday = (int)(pdlTime->dayOfWeek - 1u);  in _ifx_cat1_rtc_from_pdl_time()
136 	z_time->tm_yday = -1;  in _ifx_cat1_rtc_from_pdl_time()
139 	z_time->tm_isdst = -1;  in _ifx_cat1_rtc_from_pdl_time()
142 	z_time->tm_nsec = 0;  in _ifx_cat1_rtc_from_pdl_time()
155 	 * i.e. 1999->2000  in _ifx_cat1_rtc_century_interrupt()
178 			rslt = -EINVAL;  in ifx_cat1_rtc_init()
193 	IRQ_CONNECT(DT_INST_IRQN(0), DT_INST_IRQ(0, priority), _ifx_cat1_rtc_isr_handler,  in ifx_cat1_rtc_init()
194 		    DEVICE_DT_INST_GET(0), 0);  in ifx_cat1_rtc_init()
195 	irq_enable(DT_INST_IRQN(0));  in ifx_cat1_rtc_init()
202 	struct ifx_cat1_rtc_data *data = dev->data;  in ifx_cat1_rtc_set_time()
204 	uint32_t sec = timeptr->tm_sec;  in ifx_cat1_rtc_set_time()
205 	uint32_t min = timeptr->tm_min;  in ifx_cat1_rtc_set_time()
206 	uint32_t hour = timeptr->tm_hour;  in ifx_cat1_rtc_set_time()
207 	uint32_t day = timeptr->tm_mday;  in ifx_cat1_rtc_set_time()
211 	uint32_t mon = timeptr->tm_mon + 1;  in ifx_cat1_rtc_set_time()
212 	uint32_t year = timeptr->tm_year + _IFX_CAT1_RTC_TM_YEAR_BASE;  in ifx_cat1_rtc_set_time()
216 	uint32_t retry = 0;  in ifx_cat1_rtc_set_time()
222 		return -EINVAL;  in ifx_cat1_rtc_set_time()
225 		if (retry != 0) {  in ifx_cat1_rtc_set_time()
229 		k_spinlock_key_t key = k_spin_lock(&data->lock);  in ifx_cat1_rtc_set_time()
233 			_ifx_cat1_rtc_set_century((uint16_t)(year) - (uint16_t)(year2digit));  in ifx_cat1_rtc_set_time()
236 		k_spin_unlock(&data->lock, key);  in ifx_cat1_rtc_set_time()
240 	retry = 0;  in ifx_cat1_rtc_set_time()
248 		return 0;  in ifx_cat1_rtc_set_time()
250 		return -EINVAL;  in ifx_cat1_rtc_set_time()
256 	struct ifx_cat1_rtc_data *data = dev->data;  in ifx_cat1_rtc_get_time()
262 		return -ENODATA;  in ifx_cat1_rtc_get_time()
265 	k_spinlock_key_t key = k_spin_lock(&data->lock);  in ifx_cat1_rtc_get_time()
270 	k_spin_unlock(&data->lock, key);  in ifx_cat1_rtc_get_time()
285 	if (calibration >= 0) {  in ifx_cat1_set_calibration()
294 	/* Maximum calibration value on cat1b of 60 128 tick groupings */  in ifx_cat1_set_calibration()
297 		return -EINVAL;  in ifx_cat1_set_calibration()
303 		return -EINVAL;  in ifx_cat1_set_calibration()
306 	return 0;  in ifx_cat1_set_calibration()
320 		*calibration = WCO_PULSE_SETS_TO_PPB(hw_calibration) * -1;  in ifx_cat1_get_calibration()
323 	return 0;  in ifx_cat1_get_calibration()