#include "types.h"
#include "rtc.h"

static void
read_time(tm)
	struct rtctime *tm;
{
	tm->year = RTC_REGS.rtc_cur.year;
	tm->month = RTC_REGS.rtc_cur.month;
	tm->day_of_month = RTC_REGS.rtc_cur.day_of_month;
	tm->day_of_week = RTC_REGS.rtc_cur.day_of_week;
	tm->hours = RTC_REGS.rtc_cur.hours;
	tm->minutes = RTC_REGS.rtc_cur.minutes;
	tm->seconds = RTC_REGS.rtc_cur.seconds;
}

void
cmd_rtc()
{
	u8 ctrl;
	struct rtctime time1, time2;
	int c;

	ctrl = RTC_REGS.rtc_ctrl_reg;
	printf("RTC_CTRL_REG = %02X ", ctrl);
	switch (ctrl) {
	case 0x00:
		printf("(frozen)\n");
		break;
	case 0x01:
		printf("(running)\n");
		break;
	default:
		printf("(unexpected)\n");
		return;
	}
	printf("Reading RTC time");
	for (;;) {
		c = serial_in_poll();
		if (c >= 0) {
			printf("<INTERRUPT>\n");
			return;
		}
		read_time(&time1);
		read_time(&time2);
		if (!bcmp(&time1.minutes, &time2.minutes, 6))
			break;
	}
	printf("\nDATE %02X-%02X-%02X DOW %02X TIME %02X:%02X:%02X\n",
		time2.year, time2.month, time2.day_of_month, time2.day_of_week,
		time2.hours, time2.minutes, time2.seconds);
}

void
cmd_rtccomp()
{
	printf("%04X\n", (RTC_REGS.rtc_comp_msb_reg << 8) |
			  RTC_REGS.rtc_comp_lsb_reg);
}