#include <hwo/fifo.h>
#include <sys/atomic.h>

uint8_t	fifo_avail(FIFO* fifo)
{
	ATOMIC
	
	if (fifo->pWrite < fifo->pRead)
		return fifo->size - fifo->pRead + fifo->pWrite;
	else
		return fifo->pWrite - fifo->pRead;
};