minix/drivers/readclock/readclock.h
Thomas Cort 09db2a8c67 readclock: add support for am335x RTC
Add support for getting/setting the am335x SoC's internal real
time clock. Also, allow the power off alarm to be set.

Make readclock an "always on" driver. This is needed for setting
power-off alarms whenever the power button is pressed on the BBB.

Replace the readclock.sh script & single run driver with a
readclock program that takes the same arguments and forwards
the requests on to the always up readclock driver.

Change-Id: Ifd6c2acd80ae4b5e79d83df510df445c24e24a71
2013-08-05 08:37:51 -04:00

22 lines
702 B
C

#ifndef __READCLOCK_H
#define __READCLOCK_H
#include <time.h>
/* implementations provided by arch/${MACHINE_ARCH}/arch_readclock.c */
int arch_init(void); /* setup */
int arch_get_time(struct tm *t, int flags); /* read the hardware clock into t */
int arch_set_time(struct tm *t, int flags); /* set the hardware clock to t */
int arch_pwr_off(void); /* set the power off alarm to 5 sec from now. */
void arch_exit(void); /* clean up */
/* arch specific driver related functions */
int arch_sef_cb_lu_state_save(int);
int arch_lu_state_restore(void);
void arch_announce(void);
/* utility functions provided by readclock.c */
int bcd_to_dec(int n);
int dec_to_bcd(int n);
#endif /* __READCLOCK_H */