zephyrCommon: Add support for tone timeout

- Use another one-shot timer to stop the first timer.

Signed-off-by: Ayush Singh <[email protected]>

Author: Ayush1325

cores/arduino/zephyrCommon.cpp

@@ -202,12 +202,18 @@ PinStatus digitalRead(pin_size_t pinNumber) {
 }
 
 struct k_timer arduino_pin_timers[ARRAY_SIZE(arduino_pins)];
+struct k_timer arduino_pin_timers_timeout[ARRAY_SIZE(arduino_pins)];
 
 void tone_expiry_cb(struct k_timer *timer) {
 	const struct gpio_dt_spec *spec = (gpio_dt_spec*)k_timer_user_data_get(timer);
 	gpio_pin_toggle_dt(spec);
 }
 
+void tone_timeout_cb(struct k_timer *timer) {
+	pin_size_t pinNumber = (pin_size_t)(uintptr_t)k_timer_user_data_get(timer);
+	noTone(pinNumber);
+}
+
 void tone(pin_size_t pinNumber, unsigned int frequency, unsigned long duration) {
 	struct k_timer *timer = &arduino_pin_timers[pinNumber];
 	const struct gpio_dt_spec *spec = &arduino_pins[pinNumber];
@@ -217,6 +223,13 @@ void tone(pin_size_t pinNumber, unsigned int frequency, unsigned long duration)
 	k_timer_user_data_set(timer, (void*)spec);
 	gpio_pin_set_dt(spec, 1);
 	k_timer_start(timer, timeout, timeout);
+
+	if(duration > 0) {
+		timer = &arduino_pin_timers_timeout[pinNumber];
+		k_timer_init(timer, tone_timeout_cb, NULL);
+		k_timer_user_data_set(timer, (void*)(uintptr_t)pinNumber);
+		k_timer_start(timer, K_MSEC(duration), K_NO_WAIT);
+	}
 }
 
 void noTone(pin_size_t pinNumber) {