1 files changed, 48 insertions, 0 deletions
diff --git a/src/core/hle/service/ir/extra_hid.h b/src/core/hle/service/ir/extra_hid.h
new file mode 100644
index 000000000..a2459a73a
--- /dev/null
+++ b/src/core/hle/service/ir/extra_hid.h
@@ -0,0 +1,48 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <atomic>
+#include "core/frontend/input.h"
+#include "core/hle/service/ir/ir_user.h"
+
+namespace Service {
+namespace IR {
+
+/**
+ * An IRDevice emulating Circle Pad Pro or New 3DS additional HID hardware.
+ * This device sends periodic udates at a rate configured by the 3DS, and sends calibration data if
+ * requested.
+ */
+class ExtraHID final : public IRDevice {
+public:
+    explicit ExtraHID(SendFunc send_func);
+    ~ExtraHID();
+
+    void OnConnect() override;
+    void OnDisconnect() override;
+    void OnReceive(const std::vector<u8>& data) override;
+
+    /// Requests input devices reload from current settings. Called when the input settings change.
+    void RequestInputDevicesReload();
+
+private:
+    void SendHIDStatus();
+    void HandleConfigureHIDPollingRequest(const std::vector<u8>& request);
+    void HandleReadCalibrationDataRequest(const std::vector<u8>& request);
+    void LoadInputDevices();
+
+    u8 hid_period;
+    int hid_polling_callback_id;
+    std::array<u8, 0x40> calibration_data;
+    std::unique_ptr<Input::ButtonDevice> zl;
+    std::unique_ptr<Input::ButtonDevice> zr;
+    std::unique_ptr<Input::AnalogDevice> c_stick;
+    std::atomic<bool> is_device_reload_pending;
+};
+
+} // namespace IR
+} // namespace Service