ALSA: AACI: no need to call snd_pcm_period_elapsed() for each period

There is no need to call snd_pcm_period_elapsed() each time a period
elapses - we can call it after we're done once loading/unloading the
FIFO with data.  ALSA works out how many periods have elapsed by
reading the current pointers.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

path: root/timer.c

#include <unistd.h>
#include <sys/time.h>

#include "timer.h"

void set_itimer_interval_value(struct itimerval *itimer, unsigned long sec,
			       unsigned long usec)
{
	itimer->it_interval.tv_sec = sec;
	itimer->it_interval.tv_usec = usec;

	itimer->it_value.tv_sec = sec;
	itimer->it_value.tv_usec = usec;
}

int get_user_hz(void)
{
	return sysconf(_SC_CLK_TCK);
}