implement stubs for i2c + gpio

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/core/CMakeLists.txt

@@ -1121,6 +1121,10 @@ add_library(core STATIC
     hle/service/vi/vi_types.h
     hle/service/vi/vsync_manager.cpp
     hle/service/vi/vsync_manager.h
+    hle/service/gpio/gpio.cpp
+    hle/service/gpio/gpio.h
+    hle/service/i2c/i2c.cpp
+    hle/service/i2c/i2c.h
     internal_network/emu_net_state.cpp
     internal_network/emu_net_state.h
     internal_network/network.cpp

src/core/hle/service/gpio/gpio.cpp

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/i2c/i2c.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Service::GPIO {
+
+class GPIO final : public ServiceFramework<GPIO> {
+public:
+    explicit GPIO(Core::System& system_)
+        : ServiceFramework{system_, "gpio"}
+    {
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Cmd0"},
+        };
+        RegisterHandlers(functions);
+    }
+    ~GPIO() override = default;
+};
+
+void LoopProcess(Core::System& system) {
+    auto server_manager = std::make_unique<ServerManager>(system);
+    server_manager->RegisterNamedService("gpio", std::make_shared<GPIO>(system));
+    ServerManager::RunServer(std::move(server_manager));
+}
+
+} // namespace Service::GPIO

src/core/hle/service/gpio/gpio.h

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+namespace Core {
+class System;
+}
+
+namespace Service::GPIO {
+void LoopProcess(Core::System& system);
+} // namespace Service::GPIO

src/core/hle/service/i2c/i2c.cpp

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/i2c/i2c.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Service::I2C {
+
+class I2C final : public ServiceFramework<I2C> {
+public:
+    explicit I2C(Core::System& system_)
+        : ServiceFramework{system_, "i2c"}
+    {
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Cmd0"},
+        };
+        RegisterHandlers(functions);
+    }
+    ~I2C() override = default;
+};
+
+void LoopProcess(Core::System& system) {
+    auto server_manager = std::make_unique<ServerManager>(system);
+    server_manager->RegisterNamedService("i2c", std::make_shared<I2C>(system));
+    ServerManager::RunServer(std::move(server_manager));
+}
+
+} // namespace Service::I2C

src/core/hle/service/i2c/i2c.h

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+namespace Core {
+class System;
+}
+
+namespace Service::I2C {
+void LoopProcess(Core::System& system);
+} // namespace Service::I2C

src/core/hle/service/ptm/psm.cpp

@@ -6,10 +6,12 @@
 
 #include <memory>
 
+#include "common/common_funcs.h"
 #include "common/device_power_state.h"
 #include "common/logging.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_event.h"
+#include "core/hle/result.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/kernel_helpers.h"
 #include "core/hle/service/ptm/psm.h"
@@ -139,7 +141,7 @@ PSM::PSM(Core::System& system_) : ServiceFramework{system_, "psm"} {
         {14, nullptr, "IsEnoughPowerSupplied"},
         {15, nullptr, "GetBatteryAgePercentage"},
         {16, nullptr, "GetBatteryChargeInfoEvent"},
-        {17, nullptr, "GetBatteryChargeInfoFields"},
+        {17, &PSM::GetBatteryChargeInfoFields, "GetBatteryChargeInfoFields"},
         {18, nullptr, "GetBatteryChargeCalibratedEvent"},
     };
     // clang-format on
@@ -187,4 +189,46 @@ void PSM::OpenSession(HLERequestContext& ctx) {
     rb.PushIpcInterface<IPsmSession>(system);
 }
 
+struct BatteryChargeInfoFields {
+    u32 input_current_limit; //mA
+    u32 boost_mode_current_limit;
+    u32 fast_charge_current_limit;
+    u32 charge_voltage_limit;
+    u32 charger_type;
+    u8 hi2_mode;
+    u8 battery_charging;
+    INSERT_PADDING_BYTES_NOINIT(2);
+    u32 vdd50_state;
+    u32 temperature_celcius;
+    u32 battery_charge_percentage;
+    u32 battery_charge_milli_voltage;
+    u32 battery_age_percentage;
+    u32 usb_power_role;
+    u32 usb_charger_type;
+    u32 charger_input_voltage_limit;
+    u32 charger_input_current_limit;
+    u8 fast_battery_charging;
+    u8 controller_power_supply;
+    u8 otg_request;
+    INSERT_PADDING_BYTES_NOINIT(1);
+    INSERT_PADDING_BYTES_NOINIT(0x14); //[+17.0.0]
+};
+static_assert(sizeof(struct BatteryChargeInfoFields) == 0x54);
+
+void PSM::GetBatteryChargeInfoFields(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_PTM, "called");
+    Common::PowerStatus power_status = Common::GetPowerStatus();
+
+    BatteryChargeInfoFields r{};
+    r.battery_charge_percentage = power_status.percentage; //100%
+    r.battery_age_percentage = power_status.percentage; //100%
+    r.battery_charging = power_status.charging ? 1 : 0;
+    r.charger_type = u32(power_status.has_battery && power_status.charging
+        ? ChargerType::RegularCharger : ChargerType::Unplugged);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushRaw<BatteryChargeInfoFields>(r);
+}
+
 } // namespace Service::PTM

src/core/hle/service/ptm/psm.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
@@ -22,10 +22,10 @@ private:
         LowPowerCharger = 2,
         Unknown = 3,
     };
-
     void GetBatteryChargePercentage(HLERequestContext& ctx);
     void GetChargerType(HLERequestContext& ctx);
     void OpenSession(HLERequestContext& ctx);
+    void GetBatteryChargeInfoFields(HLERequestContext& ctx);
 };
 
 } // namespace Service::PTM

src/core/hle/service/services.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
@@ -25,8 +25,10 @@
 #include "core/hle/service/friend/friend.h"
 #include "core/hle/service/glue/glue.h"
 #include "core/hle/service/grc/grc.h"
+#include "core/hle/service/gpio/gpio.h"
 #include "core/hle/service/hid/hid.h"
 #include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/i2c/i2c.h"
 #include "core/hle/service/jit/jit.h"
 #include "core/hle/service/lbl/lbl.h"
 #include "core/hle/service/ldn/ldn.h"
@@ -144,7 +146,9 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
         {"ro",         &RO::LoopProcess},
         {"spl",        &SPL::LoopProcess},
         {"ssl",        &SSL::LoopProcess},
-        {"usb",        &USB::LoopProcess}
+        {"usb",        &USB::LoopProcess},
+        {"i2c",        &I2C::LoopProcess},
+        {"gpio",        &GPIO::LoopProcess},
     })
         kernel.RunOnGuestCoreProcess(std::string(e.first), [&system, f = e.second] { f(system); });
 }