Subversion Repositories FlightCtrl

#include "fifo.h"

void fifo_init (fifo_t *f, uint8_t *buffer, const uint8_t size)
{
        f->count = 0;
        f->pread = f->pwrite = buffer;
        f->read2end = f->write2end = f->size = size;
}

uint8_t fifo_put (fifo_t *f, const uint8_t data)
{
        return _inline_fifo_put (f, data);
}

uint8_t fifo_get_wait (fifo_t *f)
{
        while (!f->count);

        return _inline_fifo_get (f);
}

int16_t fifo_get_nowait (fifo_t *f)
{
        if (!f->count)          return -1;

        return (int16_t) _inline_fifo_get (f);
}