devices: add mouse abstraction

CMakeLists.txt

@@ -490,6 +490,9 @@ set(CORE src/core/aerolib/stubs.cpp
          src/core/crypto/keys.h
          src/core/devices/base_device.cpp
          src/core/devices/base_device.h
+         src/core/devices/hid_device.cpp
+         src/core/devices/hid_device.h
+         src/core/devices/hid_device_mouse.cpp
          src/core/file_format/pfs.h
          src/core/file_format/pkg.cpp
          src/core/file_format/pkg.h

src/core/devices/hid_device.cpp

@@ -0,0 +1,68 @@
+//  SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+//  SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <core/libraries/system/msgdialog_ui.h>
+
+#include "common/logging/log.h"
+#include "common/singleton.h"
+#include "common/va_ctx.h"
+#include "core/libraries/error_codes.h"
+#include "hid_device.h"
+#include "input/mouse.h"
+#include "ioccom.h"
+
+namespace Core::Devices {
+
+struct InitHidRaw {
+    u32 user_id;
+    u32 type;
+    u32 _unknown2;
+};
+static_assert(sizeof(InitHidRaw) == 0xC);
+
+constexpr auto HID_CMD_INIT_HANDLE_FOR_USER_ID = _IOW('H', 0x2, InitHidRaw);
+
+int HidDevice::GenericCallback(u64 cmd, Common::VaCtx* args) {
+    LOG_TRACE(Core_Devices, "HID({:X}) generic: ioctl cmd={:X}", handle, cmd);
+    if (cmd == HID_CMD_INIT_HANDLE_FOR_USER_ID) {
+        auto data = vaArgPtr<InitHidRaw>(&args->va_list);
+        this->user_id = data->user_id;
+        if (data->type == 0) {
+            LOG_INFO(Core_Devices, "HID({:X}) open: type=mouse, user_id={}", handle, data->user_id);
+            this->m_callback = &HidDevice::MouseCallback;
+            // FIXME Replace by status bar
+            if (!Common::Singleton<Input::GameMouse>::Instance()->m_connected) {
+                using namespace ::Libraries::MsgDialog;
+                ShowMsgDialog(MsgDialogState(MsgDialogState::UserState{
+                                  .type = ButtonType::YESNO,
+                                  .msg = "Game wants to use your mouse.\nDo you want to allow it?",
+                              }),
+                              false, [](DialogResult result) {
+                                  if (result.buttonId == ButtonId::YES) {
+                                      auto* mouse = Common::Singleton<Input::GameMouse>::Instance();
+                                      mouse->m_connected = true;
+                                  }
+                              });
+            }
+        } else {
+            LOG_WARNING(Core_Devices, "HID({:X}) open: unknown type={}", handle, data->type);
+        }
+        return static_cast<int>(handle);
+    }
+    LOG_WARNING(Core_Devices, "HID({:X}) generic: unknown ioctl cmd = {:X}", handle, cmd);
+    return ORBIS_KERNEL_ERROR_ENOTTY;
+}
+
+BaseDevice* HidDevice::Create(u32 handle, const char*, int, u16) {
+    return new HidDevice(handle);
+}
+
+HidDevice::HidDevice(u32 handle) : handle{handle} {}
+
+HidDevice::~HidDevice() = default;
+
+int HidDevice::ioctl(u64 cmd, Common::VaCtx* args) {
+    return (this->*m_callback)(cmd, args);
+}
+
+} // namespace Core::Devices

src/core/devices/hid_device.h

@@ -0,0 +1,30 @@
+//  SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+//  SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "base_device.h"
+
+namespace Core::Devices {
+
+class HidDevice final : BaseDevice {
+    u32 handle;
+    u32 user_id{};
+
+    int MouseCallback(u64 cmd, Common::VaCtx* args);
+
+    int GenericCallback(u64 cmd, Common::VaCtx* args);
+
+    int (HidDevice::*m_callback)(u64 cmd, Common::VaCtx* args) = &HidDevice::GenericCallback;
+
+public:
+    static BaseDevice* Create(u32 handle, const char*, int, u16);
+
+    explicit HidDevice(u32 handle);
+
+    ~HidDevice() override;
+
+    int ioctl(u64 cmd, Common::VaCtx* args) override;
+};
+
+} // namespace Core::Devices

src/core/devices/hid_device_mouse.cpp

@@ -0,0 +1,76 @@
+//  SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+//  SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/logging/log.h"
+#include "common/singleton.h"
+#include "hid_device.h"
+#include "input/mouse.h"
+#include "ioccom.h"
+
+struct MouseInfo {};
+
+struct MouseDataEntry {
+    std::array<u8, 8> _unknown1;
+    s16 x;
+    s16 y;
+    u8 buttons;
+    bool system_capture;
+    s8 wheel;
+    s8 tilt;
+    std::array<u8, 8> _reserved;
+};
+
+static_assert(sizeof(MouseDataEntry) == 0x18);
+
+struct MouseData {
+    u32 handle;
+    std::array<u8, 4> _unknown1;
+    MouseDataEntry* data;
+    int max_data;
+    std::array<u8, 4> _unknown2;
+    int* read_count;
+};
+static_assert(sizeof(MouseData) == 0x20);
+
+constexpr auto HID_CMD_READ_MOUSE_STATE = _IOW('H', 0x19, MouseData);
+
+namespace Core::Devices {
+
+int HidDevice::MouseCallback(u64 cmd, Common::VaCtx* args) {
+    switch (cmd) {
+    case HID_CMD_READ_DEVICE_INFO: {
+        auto info = vaArgPtr<DeviceInfo<MouseInfo>>(&args->va_list);
+        info->data = nullptr;
+        // TODO Fill data with the mouse info
+        return ORBIS_OK;
+    }
+    case HID_CMD_READ_MOUSE_STATE: {
+        auto mouse_data = vaArgPtr<MouseData>(&args->va_list);
+        auto* mouse = Common::Singleton<Input::GameMouse>::Instance();
+        if (!mouse->m_connected) {
+            *mouse_data->read_count = 0;
+            return 0;
+        }
+        std::array<Input::MouseState, 64> states;
+        int total = std::min((int)states.size(), mouse_data->max_data);
+        total = mouse->ReadStates(states.data(), total);
+        for (int i = 0; i < total; ++i) {
+            const auto& s = states[i];
+            mouse_data->data[i] = MouseDataEntry{
+                .x = static_cast<s16>(s.x_axis),
+                .y = static_cast<s16>(s.y_axis),
+                .buttons = static_cast<u8>(s.button_state),
+                .system_capture = false,
+                .wheel = static_cast<s8>(s.wheel),
+                .tilt = static_cast<s8>(s.tilt),
+            };
+        }
+        return total;
+    }
+    default:
+        LOG_WARNING(Core_Devices, "HID({:X}) mouse: unknown ioctl request: {:X}", handle, cmd);
+        return ORBIS_OK;
+    }
+}
+
+} // namespace Core::Devices

src/core/devices/ioccom.h

@@ -65,3 +65,13 @@ def parse(v):
   print('group', chr(v >> 8 & 0xFF))
   print('num', hex(v & 0xFF))
 */
+
+template <typename T>
+struct DeviceInfo {
+    int handle;
+    std::array<u8, 4> _pad1;
+    T* data;
+};
+static_assert(sizeof(DeviceInfo<void>) == 0x10);
+
+constexpr auto HID_CMD_READ_DEVICE_INFO = _IOW('H', 0x1, DeviceInfo<void>);

src/core/libraries/kernel/file_system.cpp

@@ -14,11 +14,13 @@
 #include <map>
 #include <ranges>
 
+#include "core/devices/hid_device.h"
 
 using FactoryDevice = std::function<Core::Devices::BaseDevice*(u32, const char*, int, u16)>;
 
 // prefix path
 static std::map<std::string, FactoryDevice> available_device = {
+    {"/dev/hid", &Core::Devices::HidDevice::Create},
 };
 
 namespace Libraries::Kernel {

src/core/libraries/kernel/libkernel.cpp

@@ -408,7 +408,6 @@ int PS4_SYSV_ABI kernel_ioctl(int fd, u64 cmd, VA_ARGS) {
     }
     VA_CTX(ctx);
     int result = file->device->ioctl(cmd, &ctx);
-    LOG_TRACE(Lib_Kernel, "ioctl: fd = {:X} cmd = {:X} result = {}", fd, cmd, result);
     if (result < 0) {
         ErrSceToPosix(result);
         return -1;

src/core/libraries/libs.cpp

@@ -90,7 +90,7 @@ void InitHLELibs(Core::Loader::SymbolsResolver* sym) {
     Libraries::SharePlay::RegisterlibSceSharePlay(sym);
     Libraries::Remoteplay::RegisterlibSceRemoteplay(sym);
     Libraries::Videodec::RegisterlibSceVideodec(sym);
-    Libraries::Mouse::RegisterlibSceMouse(sym);
+    // Libraries::Mouse::RegisterlibSceMouse(sym);
 }
 
 } // namespace Libraries

src/emulator.cpp

@@ -117,10 +117,10 @@ void Emulator::Run(const std::filesystem::path& file) {
     auto& game_info = Common::ElfInfo::Instance();
 
     // Loading param.sfo file if exists
-    std::string id;
-    std::string title;
-    std::string app_version;
-    u32 fw_version;
+    std::string id = "unknown_serial";
+    std::string title = "unknown_title";
+    std::string app_version = "unknown_version";
+    u32 fw_version = 0x4700000;
 
     std::filesystem::path sce_sys_folder = eboot_path.parent_path() / "sce_sys";
     if (std::filesystem::is_directory(sce_sys_folder)) {
@@ -274,8 +274,8 @@ void Emulator::Run(const std::filesystem::path& file) {
 }
 
 void Emulator::LoadSystemModules(const std::filesystem::path& file, std::string game_serial) {
-    constexpr std::array<SysModules, 11> ModulesToLoad{
-        {{"libSceNgs2.sprx", &Libraries::Ngs2::RegisterlibSceNgs2},
+    constexpr std::array<SysModules, 12> ModulesToLoad{{
+        {"libSceNgs2.sprx", &Libraries::Ngs2::RegisterlibSceNgs2},
         {"libSceFiber.sprx", &Libraries::Fiber::RegisterlibSceFiber},
         {"libSceUlt.sprx", nullptr},
         {"libSceJson.sprx", nullptr},
@@ -285,7 +285,9 @@ void Emulator::LoadSystemModules(const std::filesystem::path& file, std::string
         {"libSceRtc.sprx", &Libraries::Rtc::RegisterlibSceRtc},
         {"libSceJpegEnc.sprx", nullptr},
         {"libSceRazorCpu.sprx", nullptr},
-         {"libSceCesCs.sprx", nullptr}}};
+        {"libSceCesCs.sprx", nullptr},
+        {"libSceMouse.sprx", nullptr},
+    }};
 
     std::vector<std::filesystem::path> found_modules;
     const auto& sys_module_path = Common::FS::GetUserPath(Common::FS::PathType::SysModuleDir);

src/input/mouse.cpp

@@ -12,10 +12,18 @@ GameMouse::GameMouse() {
 }
 
 int GameMouse::ReadStates(MouseState* states, int states_num) {
+    if (states_num == 0) {
+        return 0;
+    }
     std::scoped_lock lock{m_mutex};
 
     const u32 count = std::min(m_states_num, u32(states_num));
 
+    if (count == 0) {
+        states[0] = m_last_state;
+        return 1;
+    }
+
     u32 begin = (m_index - m_states_num + 1) % MAX_MOUSE_STATES;
     for (u32 i = 0; i < count; i++) {
         u32 idx = (begin + i) % MAX_MOUSE_STATES;