2  * CDDL HEADER START
83 static int	instance = -1;
124 	0,			/* refcnt - reference cnt always set to 0 */
125 	todds1337_getinfo,	/* getinfo - Maybe requred */
131 	&ds1337_cbops,		/* cb_ops - ds1337 does not need this(?) */
244 	if (instance != -1) {  in todds1337_attach()
257 		instance = -1;  in todds1337_attach()
265 		instance = -1;  in todds1337_attach()
269 	statep->dip = dip;  in todds1337_attach()
271 	if (i2c_client_register(dip, &statep->ds1337_i2c_hdl) != I2C_SUCCESS) {  in todds1337_attach()
275 		instance = -1;  in todds1337_attach()
281 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_attach()
283 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_attach()
284 	i2c_tp->i2c_flags = I2C_WR_RD;  in todds1337_attach()
285 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Read Status register */  in todds1337_attach()
286 	i2c_tp->i2c_wlen = 1;  in todds1337_attach()
287 	i2c_tp->i2c_rlen = 1;  in todds1337_attach()
289 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_attach()
290 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_attach()
291 		i2c_client_unregister(statep->ds1337_i2c_hdl);  in todds1337_attach()
295 		instance = -1;  in todds1337_attach()
299 	tempVal = i2c_tp->i2c_rbuf[0];  in todds1337_attach()
301 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_attach()
308 		(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp,  in todds1337_attach()
310 		i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_attach()
311 		i2c_tp->i2c_flags = I2C_WR;  in todds1337_attach()
312 		i2c_tp->i2c_wbuf[0] = RTC_CTL; /* Write Control register */  in todds1337_attach()
313 		i2c_tp->i2c_wbuf[1] = (uchar_t)(RTC_CTL_RS2 | RTC_CTL_RS1 |  in todds1337_attach()
315 		if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp))  in todds1337_attach()
317 			(void) i2c_transfer_free(statep->ds1337_i2c_hdl,  in todds1337_attach()
319 			i2c_client_unregister(statep->ds1337_i2c_hdl);  in todds1337_attach()
323 			instance = -1;  in todds1337_attach()
327 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_attach()
332 		(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp,  in todds1337_attach()
334 		i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_attach()
335 		i2c_tp->i2c_flags = I2C_WR;  in todds1337_attach()
336 		i2c_tp->i2c_wbuf[0] = RTC_STATUS;  in todds1337_attach()
337 		i2c_tp->i2c_wbuf[1] = (uchar_t)0;  in todds1337_attach()
338 		if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp))  in todds1337_attach()
340 			(void) i2c_transfer_free(statep->ds1337_i2c_hdl,  in todds1337_attach()
342 			i2c_client_unregister(statep->ds1337_i2c_hdl);  in todds1337_attach()
346 			instance = -1;  in todds1337_attach()
350 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_attach()
356 	ASSERT(statep->cycid == NULL);  in todds1337_attach()
357 	statep->cycid = ddi_periodic_add(todds1337_cyclic, &soft_rtc,  in todds1337_attach()
359 	statep->state = TOD_ATTACHED;  in todds1337_attach()
412 	 * 00 - 68 = 2000 thru 2068  in todds1337_get()
413 	 * 69-99 = 1969 thru 1999  in todds1337_get()
436  * chip supports date from 1969-2068 only. We must
444 	int		year;  in todds1337_set()  local
450 	 * Year is base 1900, valid year range 1969-2068  in todds1337_set()
455 	year = tod.tod_year;  in todds1337_set()
456 	if (year >= 100)  in todds1337_set()
457 		year -= 100;  in todds1337_set()
459 	rtc.rtc_year	= (uint8_t)year;  in todds1337_set()
502 	 * have non-interlsecting registers, it is safe to use different locks.  in todds1337_set_power_alarm()
510 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_set_power_alarm()
512 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_set_power_alarm()
513 	i2c_tp->i2c_flags = I2C_WR_RD;  in todds1337_set_power_alarm()
514 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Read Control register */  in todds1337_set_power_alarm()
516 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_set_power_alarm()
517 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
525 	tmpval = i2c_tp->i2c_rbuf[0];  in todds1337_set_power_alarm()
527 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
529 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_set_power_alarm()
531 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_set_power_alarm()
532 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_set_power_alarm()
533 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */  in todds1337_set_power_alarm()
534 	i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_CTL_A1IE;  in todds1337_set_power_alarm()
536 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_set_power_alarm()
537 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
545 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
552 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_set_power_alarm()
554 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_set_power_alarm()
555 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_set_power_alarm()
556 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_ALARM_SEC; /* Alarm #1 Seconds */  in todds1337_set_power_alarm()
557 	i2c_tp->i2c_wbuf[1] = BYTE_TO_BCD(tod.tod_sec);  in todds1337_set_power_alarm()
558 	i2c_tp->i2c_wbuf[2] = BYTE_TO_BCD(tod.tod_min);  in todds1337_set_power_alarm()
559 	i2c_tp->i2c_wbuf[3] = BYTE_TO_BCD(tod.tod_hour);  in todds1337_set_power_alarm()
560 	i2c_tp->i2c_wbuf[4] = BYTE_TO_BCD(tod.tod_day);  in todds1337_set_power_alarm()
562 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_set_power_alarm()
563 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
571 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
577 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_set_power_alarm()
579 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_set_power_alarm()
580 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_set_power_alarm()
581 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */  in todds1337_set_power_alarm()
582 	i2c_tp->i2c_wbuf[1] = tmpval | RTC_CTL_A1IE;  in todds1337_set_power_alarm()
584 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_set_power_alarm()
585 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
593 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_set_power_alarm()
624 	 * have non-interlsecting registers, it is safe to use different locks.  in todds1337_clear_power_alarm()
632 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_clear_power_alarm()
634 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_clear_power_alarm()
635 	i2c_tp->i2c_flags = I2C_WR_RD;  in todds1337_clear_power_alarm()
636 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Read Control register */  in todds1337_clear_power_alarm()
638 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_clear_power_alarm()
639 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
647 	tmpval = i2c_tp->i2c_rbuf[0];  in todds1337_clear_power_alarm()
649 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
651 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_clear_power_alarm()
653 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_clear_power_alarm()
654 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_clear_power_alarm()
655 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_CTL; /* Write Control register */  in todds1337_clear_power_alarm()
656 	i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_CTL_A1IE;  in todds1337_clear_power_alarm()
658 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_clear_power_alarm()
659 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
667 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
672 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_clear_power_alarm()
674 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_clear_power_alarm()
675 	i2c_tp->i2c_flags = I2C_WR_RD;  in todds1337_clear_power_alarm()
676 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Read Status register */  in todds1337_clear_power_alarm()
678 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_clear_power_alarm()
679 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
687 	tmpval = i2c_tp->i2c_rbuf[0];  in todds1337_clear_power_alarm()
689 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
691 	(void) i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_clear_power_alarm()
693 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_clear_power_alarm()
694 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_clear_power_alarm()
695 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_STATUS; /* Write Status register */  in todds1337_clear_power_alarm()
696 	i2c_tp->i2c_wbuf[1] = tmpval & ~RTC_STATUS_A1F;  in todds1337_clear_power_alarm()
698 	if ((i2c_transfer(statep->ds1337_i2c_hdl, i2c_tp)) != I2C_SUCCESS) {  in todds1337_clear_power_alarm()
699 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
707 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_clear_power_alarm()
731 static char tod_read[7] = {-1, -1, -1, -1, -1, -1, -1};
754 	 * to accomodate sec, min, hrs, dayOfWeek, dayOfMonth, year  in todds1337_read_rtc()
756 	if ((i2c_transfer_alloc(statep->ds1337_i2c_hdl, &i2c_tp, 1,  in todds1337_read_rtc()
763 		i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_read_rtc()
764 		i2c_tp->i2c_flags = I2C_WR_RD;  in todds1337_read_rtc()
765 		i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_SEC; /* Start from 0x00 */  in todds1337_read_rtc()
766 		i2c_tp->i2c_wlen = 1;	/* Write one byte address */  in todds1337_read_rtc()
767 		i2c_tp->i2c_rlen = 7;	/* Read 7 regs */  in todds1337_read_rtc()
769 		if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl,  in todds1337_read_rtc()
774 		while (tod_read[0] == -1 && counter > 0) {  in todds1337_read_rtc()
776 		bcopy(i2c_tp->i2c_rbuf, tod_read, 7);  in todds1337_read_rtc()
779 		/* Start reading reg from 0x00 */  in todds1337_read_rtc()
780 		i2c_tp->i2c_wbuf[0] = (uchar_t)0x00;  in todds1337_read_rtc()
781 		i2c_tp->i2c_wlen = 1;	/* Write one byte address */  in todds1337_read_rtc()
782 		i2c_tp->i2c_rlen = 7;	/* Read 7 regs */  in todds1337_read_rtc()
783 		if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl,  in todds1337_read_rtc()
788 		if (bcmp(tod_read, i2c_tp->i2c_rbuf, 7) != 0) {  in todds1337_read_rtc()
789 			tod_read[0] = -1;  in todds1337_read_rtc()
790 			counter--;  in todds1337_read_rtc()
794 	} while (i2c_tp->i2c_rbuf[0] == 0x59 &&  in todds1337_read_rtc()
796 	    bcmp(&tod_read[1], &i2c_tp->i2c_rbuf[1], 6) != 0 &&  in todds1337_read_rtc()
797 	    counter-- > 0);  in todds1337_read_rtc()
803 	bcopy(i2c_tp->i2c_rbuf, tod_read, 7);  in todds1337_read_rtc()
806 	rtc->rtc_year	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[6]);  in todds1337_read_rtc()
807 	rtc->rtc_mon	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[5]);  in todds1337_read_rtc()
808 	rtc->rtc_dom	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[4]);  in todds1337_read_rtc()
809 	rtc->rtc_dow	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[3]);  in todds1337_read_rtc()
810 	rtc->rtc_hrs	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[2]);  in todds1337_read_rtc()
811 	rtc->rtc_min	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[1]);  in todds1337_read_rtc()
812 	rtc->rtc_sec	= BCD_TO_BYTE(i2c_tp->i2c_rbuf[0]);  in todds1337_read_rtc()
815 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_read_rtc()
839 	if ((i2c_cmd_status = i2c_transfer_alloc(statep->ds1337_i2c_hdl,  in todds1337_write_rtc()
844 	i2c_tp->i2c_version = I2C_XFER_REV;  in todds1337_write_rtc()
845 	i2c_tp->i2c_flags = I2C_WR;  in todds1337_write_rtc()
846 	i2c_tp->i2c_wbuf[0] = (uchar_t)RTC_SEC;  in todds1337_write_rtc()
847 	i2c_tp->i2c_wbuf[1] = BYTE_TO_BCD(rtc->rtc_sec);  in todds1337_write_rtc()
848 	i2c_tp->i2c_wbuf[2] = BYTE_TO_BCD(rtc->rtc_min);  in todds1337_write_rtc()
849 	i2c_tp->i2c_wbuf[3] = BYTE_TO_BCD(rtc->rtc_hrs);  in todds1337_write_rtc()
850 	i2c_tp->i2c_wbuf[4] = BYTE_TO_BCD(rtc->rtc_dow);  in todds1337_write_rtc()
851 	i2c_tp->i2c_wbuf[5] = BYTE_TO_BCD(rtc->rtc_dom);  in todds1337_write_rtc()
852 	i2c_tp->i2c_wbuf[6] = BYTE_TO_BCD(rtc->rtc_mon);  in todds1337_write_rtc()
853 	i2c_tp->i2c_wbuf[7] = BYTE_TO_BCD(rtc->rtc_year);  in todds1337_write_rtc()
854 	i2c_tp->i2c_wlen = 8;  in todds1337_write_rtc()
856 	if ((i2c_cmd_status = i2c_transfer(statep->ds1337_i2c_hdl,  in todds1337_write_rtc()
858 		(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_write_rtc()
862 	tod_read[0] = -1;  /* invalidate saved data from read routine */  in todds1337_write_rtc()
864 	(void) i2c_transfer_free(statep->ds1337_i2c_hdl, i2c_tp);  in todds1337_write_rtc()
877 	if (instance == -1) {  in todds1337_getinfo()
886 		*result = (void *)softsp->dip;  in todds1337_getinfo()
898  * execute the get-time method
941  * Read the date using "get-time" method in rtc node
942  * PROM returns 1969-1999 when reading 69-99 and
943  * 2000-2068 when reading 00-68
948 	int year;  in todds1337_prom_getdate()  local
951 	ci[0] = p1275_ptr2cell("call-method");  /* Service name */  in todds1337_prom_getdate()
954 	ci[3] = p1275_ptr2cell("get-time");  in todds1337_prom_getdate()
961 	year		= p1275_cell2int(ci[6]);  in todds1337_prom_getdate()
962 	rtc->rtc_mon	= p1275_cell2int(ci[7]);  in todds1337_prom_getdate()
963 	rtc->rtc_dom	= p1275_cell2int(ci[8]);  in todds1337_prom_getdate()
964 	rtc->rtc_dow	= 0;  in todds1337_prom_getdate()
965 	rtc->rtc_hrs	= p1275_cell2int(ci[9]);  in todds1337_prom_getdate()
966 	rtc->rtc_min	= p1275_cell2int(ci[10]);  in todds1337_prom_getdate()
967 	rtc->rtc_sec	= p1275_cell2int(ci[11]);  in todds1337_prom_getdate()
968 	if (year >= 2000)  in todds1337_prom_getdate()
969 		year -= 2000;  in todds1337_prom_getdate()
971 		year -= 1900;  in todds1337_prom_getdate()
972 	rtc->rtc_year	= year;  in todds1337_prom_getdate()
978  * Read the date using "set-time" method in rtc node
979  * For values 00 - 68, write 2000-2068, and for 69-99,
980  * write 1969-1999
985 	int year;  in todds1337_prom_setdate()  local
988 	year = rtc->rtc_year;  in todds1337_prom_setdate()
990 	if ((year < 0) || (year > 99))  in todds1337_prom_setdate()
993 	if (year <= 68)  in todds1337_prom_setdate()
994 		year = rtc->rtc_year + 2000;  in todds1337_prom_setdate()
996 		year = rtc->rtc_year + 1900;  in todds1337_prom_setdate()
998 	ci[0] = p1275_ptr2cell("call-method");  /* Service name */  in todds1337_prom_setdate()
1001 	ci[3] = p1275_ptr2cell("set-time");  in todds1337_prom_setdate()
1003 	ci[5] = p1275_int2cell(year);  in todds1337_prom_setdate()
1004 	ci[6] = p1275_int2cell(rtc->rtc_mon);  in todds1337_prom_setdate()
1005 	ci[7] = p1275_int2cell(rtc->rtc_dom);  in todds1337_prom_setdate()
1006 	ci[8] = p1275_int2cell(rtc->rtc_hrs);  in todds1337_prom_setdate()
1007 	ci[9] = p1275_int2cell(rtc->rtc_min);  in todds1337_prom_setdate()
1008 	ci[10] = p1275_int2cell(rtc->rtc_sec);  in todds1337_prom_setdate()