input_common: Implement joycon ir camera

src/input_common/helpers/joycon_protocol/irs.h

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// Based on dkms-hid-nintendo implementation, CTCaer joycon toolkit and dekuNukem reverse
+// engineering https://github.com/nicman23/dkms-hid-nintendo/blob/master/src/hid-nintendo.c
+// https://github.com/CTCaer/jc_toolkit
+// https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
+
+#pragma once
+
+#include <vector>
+
+#include "input_common/helpers/joycon_protocol/common_protocol.h"
+#include "input_common/helpers/joycon_protocol/joycon_types.h"
+
+namespace InputCommon::Joycon {
+
+class IrsProtocol final : private JoyconCommonProtocol {
+public:
+    explicit IrsProtocol(std::shared_ptr<JoyconHandle> handle);
+
+    DriverResult EnableIrs();
+
+    DriverResult DisableIrs();
+
+    DriverResult SetIrsConfig(IrsMode mode, IrsResolution format);
+
+    DriverResult RequestImage(std::span<u8> buffer);
+
+    std::vector<u8> GetImage() const;
+
+    IrsResolution GetIrsFormat() const;
+
+    bool IsEnabled() const;
+
+private:
+    DriverResult ConfigureIrs();
+
+    DriverResult WriteRegistersStep1();
+    DriverResult WriteRegistersStep2();
+
+    DriverResult RequestFrame(u8 frame);
+    DriverResult ResendFrame(u8 frame);
+
+    IrsMode irs_mode{IrsMode::ImageTransfer};
+    IrsResolution resolution{IrsResolution::Size40x30};
+    IrsResolutionCode resolution_code{IrsResolutionCode::Size40x30};
+    IrsFragments fragments{IrsFragments::Size40x30};
+    IrLeds leds{IrLeds::BrightAndDim};
+    IrExLedFilter led_filter{IrExLedFilter::Enabled};
+    IrImageFlip image_flip{IrImageFlip::Normal};
+    u8 digital_gain{0x01};
+    u16 exposure{0x2490};
+    u16 led_intensity{0x0f10};
+    u32 denoise{0x012344};
+
+    u8 packet_fragment{};
+    std::vector<u8> buf_image; // 8bpp greyscale image.
+
+    bool is_enabled{};
+};
+
+} // namespace InputCommon::Joycon