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add gettimeofday function

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This commit is contained in:
Joey Castillo 2022-01-15 12:22:42 -05:00
parent 0c68b9fba5
commit 19fd519209
1 changed files with 12 additions and 0 deletions
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12
watch-library/watch/watch_private.c
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@ -23,6 +23,7 @@
*/
#include "watch_private.h"
#include "watch_utility.h"
#include "tusb.h"
void _watch_init(void) {
@ -97,6 +98,17 @@ int getentropy(void *buf, size_t buflen) {
return 0;
}
int _gettimeofday(struct timeval *tv, void *tzvp) {
(void)tzvp;
watch_date_time date_time = watch_rtc_get_date_time();
// FIXME: this assumes the system time is UTC! Will break for any other time zone.
tv->tv_sec = watch_utility_date_time_to_unix_time(date_time, 0);
tv->tv_usec = 0;
return 0;
}
void _watch_enable_tcc(void) {
// clock TCC0 with the main clock (8 MHz) and enable the peripheral clock.
hri_gclk_write_PCHCTRL_reg(GCLK, TCC0_GCLK_ID, GCLK_PCHCTRL_GEN_GCLK0_Val | GCLK_PCHCTRL_CHEN);