Detect and send key events

Author: rovo89

src/drivers/input/input_driver.cpp

@@ -1,6 +1,7 @@
 #include "input_driver.hpp"
 
 #include "globals.hpp"
+#include "services.hpp"
 
 namespace xbot::driver::input {
 
@@ -10,6 +11,7 @@ bool Input::Update(bool new_active) {
     if (new_active) {
       active_since = system::getTimeMicros();
     }
+    input_service.OnInputChanged(*this);
     chEvtBroadcastFlags(&mower_events, MowerEvents::INPUTS_CHANGED);
     return true;
   } else {

src/services/input_service/input_service.cpp

@@ -137,3 +137,22 @@ void InputService::SendStatus() {
   SendActiveInputs(active_inputs_mask);
   CommitTransaction();
 }
+
+bool InputService::SendInputEventHelper(Input& input, InputEventType type) {
+  uint8_t payload[2] = {input.idx, static_cast<uint8_t>(type)};
+  return SendInputEvent(payload, 2);
+}
+
+void InputService::OnInputChanged(Input& input) {
+  // TODO: This will be called in the middle of the driver's update loop.
+  //       We might want to queue the raw changes and send them at a safe time.
+  StartTransaction();
+  if (input.IsActive()) {
+    SendInputEventHelper(input, InputEventType::ACTIVE);
+  } else {
+    SendInputEventHelper(input, InputEventType::INACTIVE);
+    // TODO: This obviously needs debouncing, more variants and configuration.
+    SendInputEventHelper(input, input.ActiveDuration() >= 500'000 ? InputEventType::LONG : InputEventType::SHORT);
+  }
+  CommitTransaction();
+}

src/services/input_service/input_service.hpp

@@ -31,6 +31,8 @@ class InputService : public InputServiceBase {
     SendStatus();
   }
 
+  void OnInputChanged(Input& input);
+
  private:
   GpioInputDriver gpio_driver_{*this};
   WorxInputDriver worx_driver_{*this};
@@ -49,6 +51,7 @@ class InputService : public InputServiceBase {
   void OnStop() override;
   void OnLoop(uint32_t now_micros, uint32_t last_tick_micros) override;
 
+  bool SendInputEventHelper(Input& input, InputEventType type);
   void SendStatus();
   ServiceSchedule tick_schedule_{*this, 200'000,
                                  XBOT_FUNCTION_FOR_METHOD(InputService, &InputService::SendStatus, this)};