static void dma_run_channel(int dma_idx, int chan_idx)
{
int done = 0;
long ticks = 0;
while (!done &&
(HAVE_DRQ(dma_idx, chan_idx) || SW_ACTIVE(dma_idx, chan_idx))) {
if (!MASKED(dma_idx, chan_idx) &&
!REACHED_TC(dma_idx, chan_idx) &&
!(dma[dma_idx].command & 4) &&
(DMA_TRANSFER_MODE(dma[dma_idx].chans[chan_idx].mode) != CASCADE)) {
dma_process_channel(dma_idx, chan_idx);
ticks++;
} else {
done = 1;
}
dma_update_DRQ(dma_idx, chan_idx);
}
if (ticks > 1)
q_printf("DMA: processed %lu (left %u) cycles on controller %i channel %i\n",
ticks, dma[dma_idx].chans[chan_idx].cur_count.value, dma_idx,
chan_idx);
}
int main(void)
{
SetSystemClockPrescaler(0);
init();
sei();
led_blink(3);
while (1)
{
if(SW_ACTIVE())
{
// SW pressed
uint8_t pressCnt = 100;
// wait until released
do
{
// long term press detected?
if(pressCnt>0 && --pressCnt==0)
LED_ON();
_delay_ms(10);
} while(SW_ACTIVE());
// SW released
LED_OFF();
if(pressCnt>0)
handleSensor(1); // force transmit
else
{
// program mode
LED_ON();
fs20_resetbuffer();
fs20_rxon();
fstelegram_t t;
t.type = 'U'; // undefined
pressCnt = 100;
// wait for next telegram
// exit if button pressed or timeout occured
while(!fs20_readFS20Telegram(&t) && --pressCnt>0 && !SW_ACTIVE())
_delay_ms(100);
fs20_idle();
LED_OFF();
// save the result
if(t.type=='F')
{
saveConfig(t.housecode, t.button);
led_blink(2); // confirm save of config
handleSensor(1); // force transmit
}
// wait until sw releases
while(SW_ACTIVE());
}
}
// check long term timer
if(longTimerCnt >= LONGTIMER_VAL)
handleSensor(1);
// finaly check if sensor value changed
// this will only be the case if the current sensor value haven't been sent
// during this cycle
handleSensor(0);
// sleep well
LED_OFF();
SENS_ACTIVATE(0);
set_sleep_mode(SLEEP_MODE_PWR_DOWN);
sleep_mode();
}
}