2  * CDDL HEADER START
73  * Machine-dependent clock routines.
107 	if (fadt->DayAlarm) {  in pc_tod_set_rtc_offsets()
108 		pc_rtc_offset.day_alrm = fadt->DayAlarm;  in pc_tod_set_rtc_offsets()
112 	if (fadt->MonthAlarm) {  in pc_tod_set_rtc_offsets()
113 		pc_rtc_offset.mon_alrm = fadt->MonthAlarm;  in pc_tod_set_rtc_offsets()
117 	if (fadt->Century) {  in pc_tod_set_rtc_offsets()
118 		pc_rtc_offset.century = fadt->Century;  in pc_tod_set_rtc_offsets()
134 	todinfo_t tod = utc_to_tod(ts.tv_sec - ggmtl());  in todpc_set()
143 	 * rtc bytes are in binary-coded decimal, so we have to convert.  in todpc_set()
144 	 * We assume that we wrap the rtc year back to zero at 2000.  in todpc_set()
147 	tod.tod_year -= YRBASE;  in todpc_set()
149 		tod.tod_year -= 100;  in todpc_set()
150 		rtc.rtc_century = BYTE_TO_BCD(20); /* 20xx year */  in todpc_set()
152 		rtc.rtc_century = BYTE_TO_BCD(19); /* 19xx year */  in todpc_set()
167  * Assumes that the year in the clock chip is valid.
188 	/* assume that we wrap the rtc year back to zero at 2000 */  in todpc_get()
192 			cmn_err(CE_WARN, "hardware real-time clock is out "  in todpc_get()
193 			    "of range -- time needs to be reset");  in todpc_get()
196 		tod.tod_year += 100 + YRBASE; /* 20xx year */  in todpc_get()
200 		tod.tod_year += YRBASE; /* 19xx year */  in todpc_get()
205 		    "The hardware real-time clock appears to have the "  in todpc_get()
258 	 * and mon.  rtc bytes are in binary-coded decimal, so we have  in todpc_setalarm()
271 		prom_printf("No day alarm - set to end of today!\n");  in todpc_setalarm()
284 				prom_printf("No mon alarm - "  in todpc_setalarm()
294 				adom -= dpm[amon];  in todpc_setalarm()
297 				prom_printf("Alarm too far in future - "  in todpc_setalarm()
298 				    "set to end of current year!\n");  in todpc_setalarm()
338  * The routine will also busy wait for the Update-In-Progress flag to clear.
339  * On completion of the reads the Seconds register is re-read and the
368 		if (vrt_try-- < 0)  in todpc_rtcget()
379 	if (uip_try-- < 0)  in todpc_rtcget()
393 	((struct rtc_t *)buf)->rtc_century = inb(RTC_DATA);  in todpc_rtcget()
397 		((struct rtc_t *)buf)->rtc_adom = inb(RTC_DATA) & 0x3f;  in todpc_rtcget()
401 		((struct rtc_t *)buf)->rtc_amon = inb(RTC_DATA);  in todpc_rtcget()
404 	outb(RTC_ADDR, 0);		/* re-read Seconds register */  in todpc_rtcget()
406 	if (reg != ((struct rtc_t *)buf)->rtc_sec ||  in todpc_rtcget()
407 	    (((struct rtc_t *)buf)->rtc_statusa & RTC_UIP))  in todpc_rtcget()
443 	outb(RTC_DATA, ((struct rtc_t *)buf)->rtc_century);  in todpc_rtcput()
449 		tmp |= ((struct rtc_t *)buf)->rtc_adom & ~RTC_VRT;  in todpc_rtcput()
454 		outb(RTC_DATA, ((struct rtc_t *)buf)->rtc_amon);  in todpc_rtcput()