int mac_hwclk()

in mac/misc.c [609:665]

• 54 lines of code
• 14 McCabe index (conditional complexity)

int mac_hwclk(int op, struct rtc_time *t)
{
	time64_t now;

	if (!op) { /* read */
		switch (macintosh_config->adb_type) {
		case MAC_ADB_IOP:
		case MAC_ADB_II:
		case MAC_ADB_PB1:
			now = via_read_time();
			break;
#ifdef CONFIG_ADB_CUDA
		case MAC_ADB_EGRET:
		case MAC_ADB_CUDA:
			now = cuda_get_time();
			break;
#endif
#ifdef CONFIG_ADB_PMU
		case MAC_ADB_PB2:
			now = pmu_get_time();
			break;
#endif
		default:
			now = 0;
		}

		t->tm_wday = 0;
		unmktime(now, 0,
			 &t->tm_year, &t->tm_mon, &t->tm_mday,
			 &t->tm_hour, &t->tm_min, &t->tm_sec);
		pr_debug("%s: read %ptR\n", __func__, t);
	} else { /* write */
		pr_debug("%s: tried to write %ptR\n", __func__, t);

		switch (macintosh_config->adb_type) {
		case MAC_ADB_IOP:
		case MAC_ADB_II:
		case MAC_ADB_PB1:
			via_set_rtc_time(t);
			break;
#ifdef CONFIG_ADB_CUDA
		case MAC_ADB_EGRET:
		case MAC_ADB_CUDA:
			cuda_set_rtc_time(t);
			break;
#endif
#ifdef CONFIG_ADB_PMU
		case MAC_ADB_PB2:
			pmu_set_rtc_time(t);
			break;
#endif
		default:
			return -ENODEV;
		}
	}
	return 0;
}