7 files changed, 80 insertions, 166 deletions

diff --git a/src/core/hle/service/hid/controllers/controller_base.h b/src/core/hle/service/hid/controllers/controller_base.h
index 1556fb08e..4ba2eda1a 100644
--- a/src/core/hle/service/hid/controllers/controller_base.h
+++ b/src/core/hle/service/hid/controllers/controller_base.h
@@ -35,9 +35,6 @@ public:
     virtual void OnMotionUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                 std::size_t size) {}
 
-    // Called when input devices should be loaded
-    virtual void OnLoadInputDevices() = 0;
-
     void ActivateController();
 
     void DeactivateController();
@@ -47,14 +44,6 @@ public:
 protected:
     bool is_activated{false};
 
-    struct CommonHeader {
-        s64_le timestamp;
-        s64_le total_entry_count;
-        s64_le last_entry_index;
-        s64_le entry_count;
-    };
-    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
-
     Core::System& system;
 };
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/debug_pad.cpp b/src/core/hle/service/hid/controllers/debug_pad.cpp
index d439b8fb0..b2b4edf51 100644
--- a/src/core/hle/service/hid/controllers/debug_pad.cpp
+++ b/src/core/hle/service/hid/controllers/debug_pad.cpp
@@ -5,7 +5,10 @@
 #include <cstring>
 #include "common/common_types.h"
 #include "common/settings.h"
+#include "core/core.h"
 #include "core/core_timing.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/debug_pad.h"
 
 namespace Service::HID {
@@ -14,7 +17,10 @@ constexpr s32 HID_JOYSTICK_MAX = 0x7fff;
 [[maybe_unused]] constexpr s32 HID_JOYSTICK_MIN = -0x7fff;
 enum class JoystickId : std::size_t { Joystick_Left, Joystick_Right };
 
-Controller_DebugPad::Controller_DebugPad(Core::System& system_) : ControllerBase{system_} {}
+Controller_DebugPad::Controller_DebugPad(Core::System& system_) : ControllerBase{system_} {
+    controller = system.HIDCore().GetEmulatedController(Core::HID::NpadIdType::Other);
+}
+
 Controller_DebugPad::~Controller_DebugPad() = default;
 
 void Controller_DebugPad::OnInit() {}
@@ -23,63 +29,29 @@ void Controller_DebugPad::OnRelease() {}
 
 void Controller_DebugPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                    std::size_t size) {
-    shared_memory.header.timestamp = core_timing.GetCPUTicks();
-    shared_memory.header.total_entry_count = 17;
-
     if (!IsControllerActivated()) {
-        shared_memory.header.entry_count = 0;
-        shared_memory.header.last_entry_index = 0;
+        debug_pad_lifo.entry_count = 0;
+        debug_pad_lifo.last_entry_index = 0;
+        std::memcpy(data, &debug_pad_lifo, sizeof(debug_pad_lifo));
         return;
     }
-    shared_memory.header.entry_count = 16;
 
-    const auto& last_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
-    shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
-
-    cur_entry.sampling_number = last_entry.sampling_number + 1;
-    cur_entry.sampling_number2 = cur_entry.sampling_number;
+    const auto& last_entry = debug_pad_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
 
     if (Settings::values.debug_pad_enabled) {
-        cur_entry.attribute.connected.Assign(1);
-        auto& pad = cur_entry.pad_state;
+        next_state.attribute.connected.Assign(1);
 
-        using namespace Settings::NativeButton;
-        pad.a.Assign(buttons[A - BUTTON_HID_BEGIN]->GetStatus());
-        pad.b.Assign(buttons[B - BUTTON_HID_BEGIN]->GetStatus());
-        pad.x.Assign(buttons[X - BUTTON_HID_BEGIN]->GetStatus());
-        pad.y.Assign(buttons[Y - BUTTON_HID_BEGIN]->GetStatus());
-        pad.l.Assign(buttons[L - BUTTON_HID_BEGIN]->GetStatus());
-        pad.r.Assign(buttons[R - BUTTON_HID_BEGIN]->GetStatus());
-        pad.zl.Assign(buttons[ZL - BUTTON_HID_BEGIN]->GetStatus());
-        pad.zr.Assign(buttons[ZR - BUTTON_HID_BEGIN]->GetStatus());
-        pad.plus.Assign(buttons[Plus - BUTTON_HID_BEGIN]->GetStatus());
-        pad.minus.Assign(buttons[Minus - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_left.Assign(buttons[DLeft - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_up.Assign(buttons[DUp - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_right.Assign(buttons[DRight - BUTTON_HID_BEGIN]->GetStatus());
-        pad.d_down.Assign(buttons[DDown - BUTTON_HID_BEGIN]->GetStatus());
+        const auto& button_state = controller->GetDebugPadButtons();
+        const auto& stick_state = controller->GetSticks();
 
-        const auto [stick_l_x_f, stick_l_y_f] =
-            analogs[static_cast<std::size_t>(JoystickId::Joystick_Left)]->GetStatus();
-        const auto [stick_r_x_f, stick_r_y_f] =
-            analogs[static_cast<std::size_t>(JoystickId::Joystick_Right)]->GetStatus();
-        cur_entry.l_stick.x = static_cast<s32>(stick_l_x_f * HID_JOYSTICK_MAX);
-        cur_entry.l_stick.y = static_cast<s32>(stick_l_y_f * HID_JOYSTICK_MAX);
-        cur_entry.r_stick.x = static_cast<s32>(stick_r_x_f * HID_JOYSTICK_MAX);
-        cur_entry.r_stick.y = static_cast<s32>(stick_r_y_f * HID_JOYSTICK_MAX);
+        next_state.pad_state = button_state;
+        next_state.l_stick = stick_state.left;
+        next_state.r_stick = stick_state.right;
     }
 
-    std::memcpy(data, &shared_memory, sizeof(SharedMemory));
+    debug_pad_lifo.WriteNextEntry(next_state);
+    std::memcpy(data, &debug_pad_lifo, sizeof(debug_pad_lifo));
 }
 
-void Controller_DebugPad::OnLoadInputDevices() {
-    std::transform(Settings::values.debug_pad_buttons.begin(),
-                   Settings::values.debug_pad_buttons.begin() +
-                       Settings::NativeButton::NUM_BUTTONS_HID,
-                   buttons.begin(), Input::CreateDevice<Input::ButtonDevice>);
-    std::transform(Settings::values.debug_pad_analogs.begin(),
-                   Settings::values.debug_pad_analogs.end(), analogs.begin(),
-                   Input::CreateDevice<Input::AnalogDevice>);
-}
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/debug_pad.h b/src/core/hle/service/hid/controllers/debug_pad.h
index e90ae8415..11b6c669b 100644
--- a/src/core/hle/service/hid/controllers/debug_pad.h
+++ b/src/core/hle/service/hid/controllers/debug_pad.h
@@ -10,8 +10,14 @@
 #include "common/common_types.h"
 #include "common/settings.h"
 #include "common/swap.h"
-#include "core/frontend/input.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
+
+namespace Core::HID {
+class EmulatedController;
+struct DebugPadButton;
+struct AnalogStickState;
+} // namespace Core::HID
 
 namespace Service::HID {
 class Controller_DebugPad final : public ControllerBase {
@@ -28,66 +34,31 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct AnalogStick {
-        s32_le x;
-        s32_le y;
-    };
-    static_assert(sizeof(AnalogStick) == 0x8);
-
-    struct PadState {
-        union {
-            u32_le raw{};
-            BitField<0, 1, u32> a;
-            BitField<1, 1, u32> b;
-            BitField<2, 1, u32> x;
-            BitField<3, 1, u32> y;
-            BitField<4, 1, u32> l;
-            BitField<5, 1, u32> r;
-            BitField<6, 1, u32> zl;
-            BitField<7, 1, u32> zr;
-            BitField<8, 1, u32> plus;
-            BitField<9, 1, u32> minus;
-            BitField<10, 1, u32> d_left;
-            BitField<11, 1, u32> d_up;
-            BitField<12, 1, u32> d_right;
-            BitField<13, 1, u32> d_down;
-        };
-    };
-    static_assert(sizeof(PadState) == 0x4, "PadState is an invalid size");
-
-    struct Attributes {
+    // This is nn::hid::DebugPadAttribute
+    struct DebugPadAttribute {
         union {
             u32_le raw{};
             BitField<0, 1, u32> connected;
         };
     };
-    static_assert(sizeof(Attributes) == 0x4, "Attributes is an invalid size");
+    static_assert(sizeof(DebugPadAttribute) == 0x4, "DebugPadAttribute is an invalid size");
 
-    struct PadStates {
+    // This is nn::hid::DebugPadState
+    struct DebugPadState {
         s64_le sampling_number;
-        s64_le sampling_number2;
-        Attributes attribute;
-        PadState pad_state;
-        AnalogStick r_stick;
-        AnalogStick l_stick;
+        DebugPadAttribute attribute;
+        Core::HID::DebugPadButton pad_state;
+        Core::HID::AnalogStickState r_stick;
+        Core::HID::AnalogStickState l_stick;
     };
-    static_assert(sizeof(PadStates) == 0x28, "PadStates is an invalid state");
+    static_assert(sizeof(DebugPadState) == 0x20, "DebugPadState is an invalid state");
 
-    struct SharedMemory {
-        CommonHeader header;
-        std::array<PadStates, 17> pad_states;
-        INSERT_PADDING_BYTES(0x138);
-    };
-    static_assert(sizeof(SharedMemory) == 0x400, "SharedMemory is an invalid size");
-    SharedMemory shared_memory{};
+    // This is nn::hid::detail::DebugPadLifo
+    Lifo<DebugPadState> debug_pad_lifo{};
+    static_assert(sizeof(debug_pad_lifo) == 0x2C8, "debug_pad_lifo is an invalid size");
+    DebugPadState next_state{};
 
-    std::array<std::unique_ptr<Input::ButtonDevice>, Settings::NativeButton::NUM_BUTTONS_HID>
-        buttons;
-    std::array<std::unique_ptr<Input::AnalogDevice>, Settings::NativeAnalog::NumAnalogs>
-        analogs;
+    Core::HID::EmulatedController* controller;
 };
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/stubbed.cpp b/src/core/hle/service/hid/controllers/stubbed.cpp
index 772c20453..a8c93909d 100644
--- a/src/core/hle/service/hid/controllers/stubbed.cpp
+++ b/src/core/hle/service/hid/controllers/stubbed.cpp
@@ -31,10 +31,9 @@ void Controller_Stubbed::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
     std::memcpy(data + common_offset, &header, sizeof(CommonHeader));
 }
 
-void Controller_Stubbed::OnLoadInputDevices() {}
-
 void Controller_Stubbed::SetCommonHeaderOffset(std::size_t off) {
     common_offset = off;
     smart_update = true;
 }
+
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/stubbed.h b/src/core/hle/service/hid/controllers/stubbed.h
index 21092af0d..29f95a100 100644
--- a/src/core/hle/service/hid/controllers/stubbed.h
+++ b/src/core/hle/service/hid/controllers/stubbed.h
@@ -22,12 +22,17 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
     void SetCommonHeaderOffset(std::size_t off);
 
 private:
+    struct CommonHeader {
+        s64_le timestamp;
+        s64_le total_entry_count;
+        s64_le last_entry_index;
+        s64_le entry_count;
+    };
+    static_assert(sizeof(CommonHeader) == 0x20, "CommonHeader is an invalid size");
+
     bool smart_update{};
     std::size_t common_offset{};
 };
diff --git a/src/core/hle/service/hid/controllers/xpad.cpp b/src/core/hle/service/hid/controllers/xpad.cpp
index 41dc22cf9..29a412ff9 100644
--- a/src/core/hle/service/hid/controllers/xpad.cpp
+++ b/src/core/hle/service/hid/controllers/xpad.cpp
@@ -19,28 +19,19 @@ void Controller_XPad::OnRelease() {}
 
 void Controller_XPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                std::size_t size) {
-    for (auto& xpad_entry : shared_memory.shared_memory_entries) {
-        xpad_entry.header.timestamp = core_timing.GetCPUTicks();
-        xpad_entry.header.total_entry_count = 17;
-
-        if (!IsControllerActivated()) {
-            xpad_entry.header.entry_count = 0;
-            xpad_entry.header.last_entry_index = 0;
-            return;
-        }
-        xpad_entry.header.entry_count = 16;
-
-        const auto& last_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
-        xpad_entry.header.last_entry_index = (xpad_entry.header.last_entry_index + 1) % 17;
-        auto& cur_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
-
-        cur_entry.sampling_number = last_entry.sampling_number + 1;
-        cur_entry.sampling_number2 = cur_entry.sampling_number;
+    if (!IsControllerActivated()) {
+        basic_xpad_lifo.entry_count = 0;
+        basic_xpad_lifo.last_entry_index = 0;
+        std::memcpy(data, &basic_xpad_lifo, sizeof(basic_xpad_lifo));
+        return;
     }
+
+    const auto& last_entry = basic_xpad_lifo.ReadCurrentEntry().state;
+    next_state.sampling_number = last_entry.sampling_number + 1;
     // TODO(ogniK): Update xpad states
 
-    std::memcpy(data + SHARED_MEMORY_OFFSET, &shared_memory, sizeof(SharedMemory));
+    basic_xpad_lifo.WriteNextEntry(next_state);
+    std::memcpy(data + SHARED_MEMORY_OFFSET, &basic_xpad_lifo, sizeof(basic_xpad_lifo));
 }
 
-void Controller_XPad::OnLoadInputDevices() {}
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/xpad.h b/src/core/hle/service/hid/controllers/xpad.h
index f9ab5facf..a5421f93b 100644
--- a/src/core/hle/service/hid/controllers/xpad.h
+++ b/src/core/hle/service/hid/controllers/xpad.h
@@ -8,7 +8,9 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
+#include "core/hid/hid_types.h"
 #include "core/hle/service/hid/controllers/controller_base.h"
+#include "core/hle/service/hid/ring_lifo.h"
 
 namespace Service::HID {
 class Controller_XPad final : public ControllerBase {
@@ -25,11 +27,9 @@ public:
     // When the controller is requesting an update for the shared memory
     void OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data, std::size_t size) override;
 
-    // Called when input devices should be loaded
-    void OnLoadInputDevices() override;
-
 private:
-    struct Attributes {
+    // This is nn::hid::BasicXpadAttributeSet
+    struct BasicXpadAttributeSet {
         union {
             u32_le raw{};
             BitField<0, 1, u32> is_connected;
@@ -40,9 +40,10 @@ private:
             BitField<5, 1, u32> is_right_wired;
         };
     };
-    static_assert(sizeof(Attributes) == 4, "Attributes is an invalid size");
+    static_assert(sizeof(BasicXpadAttributeSet) == 4, "BasicXpadAttributeSet is an invalid size");
 
-    struct Buttons {
+    // This is nn::hid::BasicXpadButtonSet
+    struct BasicXpadButtonSet {
         union {
             u32_le raw{};
             // Button states
@@ -88,35 +89,21 @@ private:
             BitField<30, 1, u32> handheld_left_b;
         };
     };
-    static_assert(sizeof(Buttons) == 4, "Buttons is an invalid size");
-
-    struct AnalogStick {
-        s32_le x;
-        s32_le y;
-    };
-    static_assert(sizeof(AnalogStick) == 0x8, "AnalogStick is an invalid size");
+    static_assert(sizeof(BasicXpadButtonSet) == 4, "BasicXpadButtonSet is an invalid size");
 
-    struct XPadState {
+    // This is nn::hid::detail::BasicXpadState
+    struct BasicXpadState {
         s64_le sampling_number;
-        s64_le sampling_number2;
-        Attributes attributes;
-        Buttons pad_states;
-        AnalogStick l_stick;
-        AnalogStick r_stick;
+        BasicXpadAttributeSet attributes;
+        BasicXpadButtonSet pad_states;
+        Core::HID::AnalogStickState l_stick;
+        Core::HID::AnalogStickState r_stick;
     };
-    static_assert(sizeof(XPadState) == 0x28, "XPadState is an invalid size");
+    static_assert(sizeof(BasicXpadState) == 0x20, "BasicXpadState is an invalid size");
 
-    struct XPadEntry {
-        CommonHeader header;
-        std::array<XPadState, 17> pad_states{};
-        INSERT_PADDING_BYTES(0x138);
-    };
-    static_assert(sizeof(XPadEntry) == 0x400, "XPadEntry is an invalid size");
-
-    struct SharedMemory {
-        std::array<XPadEntry, 4> shared_memory_entries{};
-    };
-    static_assert(sizeof(SharedMemory) == 0x1000, "SharedMemory is an invalid size");
-    SharedMemory shared_memory{};
+    // This is nn::hid::detail::BasicXpadLifo
+    Lifo<BasicXpadState> basic_xpad_lifo{};
+    static_assert(sizeof(basic_xpad_lifo) == 0x2C8, "basic_xpad_lifo is an invalid size");
+    BasicXpadState next_state{};
 };
 } // namespace Service::HID