drivers/rtc/rtc-ds1685.c

35  *  Standard read/write
40  * ds1685_read - read a value from an rtc register.
42  * @reg: the register address to read.
66  * Indirect read/write functions
71  * ds1685_indirect_read - read a value from an rtc register.
73  * @reg: the register address to read.
162 		   (rtc->read(rtc, RTC_CTRL_A) & ~(RTC_CTRL_A_DV0)));
173 		   (rtc->read(rtc, RTC_CTRL_A) | RTC_CTRL_A_DV0));
185  *    is read again in a loop until INCR is inactive.
194 		   (rtc->read(rtc, RTC_CTRL_B) | RTC_CTRL_B_SET));
200 	while (rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_INCR)
220 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_SET)));
234  * called first before calling this function, else data will be read out of
240 	ssn[0] = rtc->read(rtc, RTC_BANK1_SSN_MODEL);
241 	ssn[1] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_1);
242 	ssn[2] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_2);
243 	ssn[3] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_3);
244 	ssn[4] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_4);
245 	ssn[5] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_5);
246 	ssn[6] = rtc->read(rtc, RTC_BANK1_SSN_BYTE_6);
247 	ssn[7] = rtc->read(rtc, RTC_BANK1_SSN_CRC);
269 	seconds = rtc->read(rtc, RTC_SECS);
270 	minutes = rtc->read(rtc, RTC_MINS);
271 	hours   = rtc->read(rtc, RTC_HRS);
272 	wday    = rtc->read(rtc, RTC_WDAY);
273 	mday    = rtc->read(rtc, RTC_MDAY);
274 	month   = rtc->read(rtc, RTC_MONTH);
275 	years   = rtc->read(rtc, RTC_YEAR);
276 	century = rtc->read(rtc, RTC_CENTURY);
353 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
393 	seconds	= rtc->read(rtc, RTC_SECS_ALARM);
394 	minutes	= rtc->read(rtc, RTC_MINS_ALARM);
395 	hours	= rtc->read(rtc, RTC_HRS_ALARM);
396 	mday	= rtc->read(rtc, RTC_MDAY_ALARM);
397 	ctrlb	= rtc->read(rtc, RTC_CTRL_B);
398 	ctrlc	= rtc->read(rtc, RTC_CTRL_C);
493 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
497 	rtc->read(rtc, RTC_CTRL_C);
503 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
516 		ctrlb = rtc->read(rtc, RTC_CTRL_B);
544 		rtc->write(rtc, RTC_CTRL_B, (rtc->read(rtc, RTC_CTRL_B) |
547 		rtc->write(rtc, RTC_CTRL_B, (rtc->read(rtc, RTC_CTRL_B) &
551 	rtc->read(rtc, RTC_CTRL_C);
572 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);
573 	ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);
583 			   (rtc->read(rtc, RTC_EXT_CTRL_4B) &
598 			   (rtc->read(rtc, RTC_EXT_CTRL_4B) |
672 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
673 	ctrlc = rtc->read(rtc, RTC_CTRL_C);
761 	ctrla = rtc->read(rtc, RTC_CTRL_A);
762 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
763 	ctrld = rtc->read(rtc, RTC_CTRL_D);
764 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);
765 	ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);
859 			*buf++ = rtc->read(rtc, (NVRAM_TIME_BASE + pos++));
861 			*buf++ = rtc->read(rtc, (NVRAM_BANK0_BASE + pos++));
871 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) |
885 			 * before each read. */
889 			*buf++ = rtc->read(rtc, RTC_BANK1_RAM_DATA_PORT);
896 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) &
938 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) |
952 			 * before each read. */
963 			   (rtc->read(rtc, RTC_EXT_CTRL_4A) &
990 	ctrld = rtc->read(rtc, RTC_CTRL_D);
1011 	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);
1099 		rtc->read = ds1685_read;
1109 		rtc->read = ds1685_indirect_read;
1114 	if (!rtc->read || !rtc->write)
1139 	ctrla = rtc->read(rtc, RTC_CTRL_A);
1158 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) | RTC_CTRL_4B_E32K));
1162 		   (rtc->read(rtc, RTC_CTRL_B) | RTC_CTRL_B_SET));
1165 	while (rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_INCR)
1172 	ctrlb = rtc->read(rtc, RTC_CTRL_B);
1190 		hours = rtc->read(rtc, RTC_HRS);
1209 		hours = rtc->read(rtc, RTC_HRS_ALARM);
1227 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_SET)));
1230 	if (!(rtc->read(rtc, RTC_CTRL_D) & RTC_CTRL_D_VRT))
1235 	if (!(rtc->read(rtc, RTC_EXT_CTRL_4A) & RTC_CTRL_4A_VRT2))
1241 		   (rtc->read(rtc, RTC_CTRL_B) & ~(RTC_CTRL_B_PAU_MASK)));
1244 	rtc->read(rtc, RTC_CTRL_C);
1248 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) & ~(RTC_CTRL_4B_RWK_MASK)));
1252 		   (rtc->read(rtc, RTC_EXT_CTRL_4A) & ~(RTC_CTRL_4A_RWK_MASK)));
1259 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) | RTC_CTRL_4B_KSE));
1332 		   (rtc->read(rtc, RTC_CTRL_B) &
1336 	rtc->read(rtc, RTC_CTRL_C);
1340 		   (rtc->read(rtc, RTC_EXT_CTRL_4B) &
1345 		   (rtc->read(rtc, RTC_EXT_CTRL_4A) &
1395 		ctrla = rtc->read(rtc, RTC_CTRL_A);
1406 		ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);
1418 			ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);