Deallocate resources on SerialPIO::end #596

Merged
earlephilhower merged 1 commits from piou into master 2022-05-25 13:08:50 +03:00
+17 -2
View File
@@ -257,8 +257,23 @@ void SerialPIO::end() {
if (!_running) {
return;
}
// TODO: Deallocate PIO resources, stop them
_pioSP[pio_get_index(_rxPIO)][_rxSM] = nullptr;
if (_tx != NOPIN) {
pio_sm_set_enabled(_txPIO, _txSM, false);
}
if (_rx != NOPIN) {
pio_sm_set_enabled(_rxPIO, _rxSM, false);
_pioSP[pio_get_index(_rxPIO)][_rxSM] = nullptr;
// If no more active, disable the IRQ
auto pioNum = pio_get_index(_rxPIO);
bool used = false;
for (int i = 0; i < 4; i++) {
used = used || !!_pioSP[pioNum][i];
}
if (!used) {
auto irqno = pioNum == 0 ? PIO0_IRQ_0 : PIO1_IRQ_0;
irq_set_enabled(irqno, false);
}
}
_running = false;
}