1 // SPDX-License-Identifier: GPL-2.0
3  *	Real Time Clock interface for Linux on the MVME16x
46 	case RTC_RD_TIME:	/* Read the time/date from RTC	*/  in rtc_ioctl()
49 		/* Ensure clock and real-time-mode-register are accessible */  in rtc_ioctl()
50 		rtc->ctrl = RTC_READ;  in rtc_ioctl()
52 		wtime.tm_sec =  bcd2bin(rtc->bcd_sec);  in rtc_ioctl()
53 		wtime.tm_min =  bcd2bin(rtc->bcd_min);  in rtc_ioctl()
54 		wtime.tm_hour = bcd2bin(rtc->bcd_hr);  in rtc_ioctl()
55 		wtime.tm_mday =  bcd2bin(rtc->bcd_dom);  in rtc_ioctl()
56 		wtime.tm_mon =  bcd2bin(rtc->bcd_mth)-1;  in rtc_ioctl()
57 		wtime.tm_year = bcd2bin(rtc->bcd_year);  in rtc_ioctl()
60 		wtime.tm_wday = bcd2bin(rtc->bcd_dow)-1;  in rtc_ioctl()
61 		rtc->ctrl = 0;  in rtc_ioctl()
64 								-EFAULT : 0;  in rtc_ioctl()
73 			return -EACCES;  in rtc_ioctl()
76 			return -EFAULT;  in rtc_ioctl()
90 			return -EINVAL;  in rtc_ioctl()
93 			return -EINVAL;  in rtc_ioctl()
96 			return -EINVAL;  in rtc_ioctl()
99 			return -EINVAL;  in rtc_ioctl()
102 		rtc->ctrl     = RTC_WRITE;  in rtc_ioctl()
104 		rtc->bcd_sec  = bin2bcd(sec);  in rtc_ioctl()
105 		rtc->bcd_min  = bin2bcd(min);  in rtc_ioctl()
106 		rtc->bcd_hr   = bin2bcd(hrs);  in rtc_ioctl()
107 		rtc->bcd_dom  = bin2bcd(day);  in rtc_ioctl()
108 		rtc->bcd_mth  = bin2bcd(mon);  in rtc_ioctl()
109 		rtc->bcd_year = bin2bcd(yrs%100);  in rtc_ioctl()
111 		rtc->ctrl     = 0;  in rtc_ioctl()
116 		return -EINVAL;  in rtc_ioctl()
121  * We enforce only one user at a time here with the open/close.
128 		return -EBUSY;  in rtc_open()
160 		return -ENODEV;  in rtc_MK48T08_init()
162 	pr_info("MK48T08 Real Time Clock Driver v%s\n", RTC_VERSION);  in rtc_MK48T08_init()