Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* Real Time Clock Driver Test
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *	by: Benjamin Gaignard (benjamin.gaignard@linaro.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * To build
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *	gcc rtctest_setdate.c -o rtctest_setdate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/rtc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <sys/ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <sys/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <stdlib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static const char default_time[] = "00:00:00";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int main(int argc, char **argv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	int fd, retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct rtc_time new, current;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	const char *rtc, *date;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	const char *time = default_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	switch (argc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		time = argv[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		/* FALLTHROUGH */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		date = argv[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		rtc = argv[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		fprintf(stderr, "usage: rtctest_setdate <rtcdev> <DD-MM-YYYY> [HH:MM:SS]\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	fd = open(rtc, O_RDONLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	if (fd == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		perror(rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		exit(errno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	sscanf(date, "%d-%d-%d", &new.tm_mday, &new.tm_mon, &new.tm_year);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	new.tm_mon -= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	new.tm_year -= 1900;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	sscanf(time, "%d:%d:%d", &new.tm_hour, &new.tm_min, &new.tm_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	fprintf(stderr, "Test will set RTC date/time to %d-%d-%d, %02d:%02d:%02d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		new.tm_mday, new.tm_mon + 1, new.tm_year + 1900,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		new.tm_hour, new.tm_min, new.tm_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	/* Write the new date in RTC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	retval = ioctl(fd, RTC_SET_TIME, &new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	if (retval == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		perror("RTC_SET_TIME ioctl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 		exit(errno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	/* Read back */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	retval = ioctl(fd, RTC_RD_TIME, &current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	if (retval == -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		perror("RTC_RD_TIME ioctl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 		exit(errno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 	fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 		current.tm_mday, current.tm_mon + 1, current.tm_year + 1900,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 		current.tm_hour, current.tm_min, current.tm_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	close(fd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }