[beken-72xx] Fix CHANGE interrupt logic (#290)

* fix CHANGE interrupt for beken-72xx * Update cores/beken-72xx/arduino/src/wiring_irq.c --------- Co-authored-by: Kuba Szczodrzyński <[email protected]>
libretiny-eu · Sep 5, 2024 · 41819f2 · 41819f2
1 parent 17043f6
commit 41819f2
Showing 1 changed file with 15 additions and 9 deletions.
diff --git a/cores/beken-72xx/arduino/src/wiring_irq.c b/cores/beken-72xx/arduino/src/wiring_irq.c
@@ -9,19 +9,19 @@ static void irqHandler(unsigned char gpio) {
 	PinData *data = pinData(pin);
 	if (!data->irqHandler)
 		return;
+	if (!data->irqParam)
+		((voidFuncPtr)data->irqHandler)();
+	else
+		((voidFuncPtrParam)data->irqHandler)(data->irqParam);
 	if (data->irqChange) {
-		if (data->gpioMode == INPUT_PULLDOWN) {
-			data->gpioMode = INPUT_PULLUP;
+		if (data->irqMode == RISING) {
+			data->irqMode = FALLING;
 			gpio_int_enable(pin->gpio, GPIO_INT_LEVEL_FALLING, irqHandler);
-		} else if (data->gpioMode == INPUT_PULLUP) {
-			data->gpioMode = INPUT_PULLDOWN;
+		} else {
+			data->irqMode = RISING;
 			gpio_int_enable(pin->gpio, GPIO_INT_LEVEL_RISING, irqHandler);
 		}
 	}
-	if (!data->irqParam)
-		((voidFuncPtr)data->irqHandler)();
-	else
-		((voidFuncPtrParam)data->irqHandler)(data->irqParam);
 }
 
 void attachInterruptParam(pin_size_t interruptNumber, voidFuncPtrParam callback, PinStatus mode, void *param) {
@@ -52,7 +52,13 @@ void attachInterruptParam(pin_size_t interruptNumber, voidFuncPtrParam callback,
 			event = GPIO_INT_LEVEL_RISING;
 			break;
 		case CHANGE:
-			event  = GPIO_INT_LEVEL_FALLING;
+			if (gpio_input(pin->gpio)) {
+				event = GPIO_INT_LEVEL_FALLING;
+				mode  = FALLING;
+			} else {
+				event = GPIO_INT_LEVEL_RISING;
+				mode  = RISING;
+			}
 			change = true;
 			break;
 		default: