[qt, settings] allow to set custom unit and battery serial (#2813)

Also removes "use dev keys" option since it's not even present on UI and it's just a file redirection anyways
Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2813
Reviewed-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

docs/user/Native.md

@@ -0,0 +1,12 @@
+# User Handbook - Native Application Development
+
+Debugging on physical hardware can get tedious and time consuming. Users are empowered with the debugging capabilities of the emulator to ensure their applications run as-is on the system. To the greatest extent possible atleast.
+
+## Debugging
+
+**Standard key prefix**: Allows to redirect the key manager to a file other than `prod.keys` (for example `other` would redirect to `other.keys`). This is useful for testing multiple keysets. Default is `prod`.
+
+**Changing serial**: Very basic way to set debug values for the serial (and battery number). Developers do not need to write the full serial as it will be writen in-place (that is, it will be filled with the default serial and then overwrite the serial from the beginning).
+- Battery serial: `YUZU0EMULATOR14022024`
+- Board serial: `YUZ10000000001`
+If the user were to set their board serial as `ABC`, then it will be written in-place and the resulting serial would be `ABC10000000001`. There are no underlying checks to ensure correctness of serials other than a hard limit of 16-characters for both.

docs/user/README.md

@@ -11,3 +11,4 @@ This handbook is primarily aimed at the end-user - baking useful knowledge for e
 - **[Testing](Testing.md)**
 - **[Data, savefiles and storage](Storage.md)**
 - **[Orphaned Profiles](Orphaned.md)**
+- **[Native Application Development](Native.md)**

src/common/settings.h

@@ -740,10 +740,11 @@ struct Values {
     Setting<bool> disable_web_applet{linkage, true, "disable_web_applet", Category::Debugging};
 
     // Miscellaneous
+    Setting<std::string> serial_battery{linkage, std::string(), "serial_battery", Category::Miscellaneous};
+    Setting<std::string> serial_unit{linkage, std::string(), "serial_unit", Category::Miscellaneous};
     Setting<std::string> log_filter{linkage, "*:Info", "log_filter", Category::Miscellaneous};
     Setting<bool> log_flush_line{linkage, false, "flush_line", Category::Miscellaneous, Specialization::Default, true, true};
     Setting<bool> censor_username{linkage, true, "censor_username", Category::Miscellaneous};
-    Setting<bool> use_dev_keys{linkage, false, "use_dev_keys", Category::Miscellaneous};
     Setting<bool> first_launch{linkage, true, "first_launch", Category::Miscellaneous};
 
     // Network

src/core/crypto/key_manager.cpp

@@ -640,32 +640,20 @@ KeyManager::KeyManager() {
 
 void KeyManager::ReloadKeys() {
     // Initialize keys
-    const auto yuzu_keys_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::KeysDir);
-
-    if (!Common::FS::CreateDir(yuzu_keys_dir)) {
+    const auto keys_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::KeysDir);
+    if (!Common::FS::CreateDir(keys_dir))
         LOG_ERROR(Core, "Failed to create the keys directory.");
-    }
-
-    if (Settings::values.use_dev_keys) {
-        dev_mode = true;
-        LoadFromFile(yuzu_keys_dir / "dev.keys_autogenerated", false);
-        LoadFromFile(yuzu_keys_dir / "dev.keys", false);
-    } else {
-        dev_mode = false;
-        LoadFromFile(yuzu_keys_dir / "prod.keys_autogenerated", false);
-        LoadFromFile(yuzu_keys_dir / "prod.keys", false);
-    }
-
-    LoadFromFile(yuzu_keys_dir / "title.keys_autogenerated", true);
-    LoadFromFile(yuzu_keys_dir / "title.keys", true);
-    LoadFromFile(yuzu_keys_dir / "console.keys_autogenerated", false);
-    LoadFromFile(yuzu_keys_dir / "console.keys", false);
+    LoadFromFile(keys_dir / "prod.keys_autogenerated", false);
+    LoadFromFile(keys_dir / "prod.keys", false);
+    LoadFromFile(keys_dir / "title.keys_autogenerated", true);
+    LoadFromFile(keys_dir / "title.keys", true);
+    LoadFromFile(keys_dir / "console.keys_autogenerated", false);
+    LoadFromFile(keys_dir / "console.keys", false);
 }
 
 static bool ValidCryptoRevisionString(std::string_view base, size_t begin, size_t length) {
-    if (base.size() < begin + length) {
+    if (base.size() < begin + length)
         return false;
-    }
     return std::all_of(base.begin() + begin, base.begin() + begin + length,
                        [](u8 c) { return std::isxdigit(c); });
 }
@@ -850,9 +838,8 @@ void KeyManager::WriteKeyToFile(KeyCategory category, std::string_view keyname,
     const auto yuzu_keys_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::KeysDir);
 
     std::string filename = "title.keys_autogenerated";
-
     if (category == KeyCategory::Standard) {
-        filename = dev_mode ? "dev.keys_autogenerated" : "prod.keys_autogenerated";
+        filename = "prod.keys_autogenerated";
     } else if (category == KeyCategory::Console) {
         filename = "console.keys_autogenerated";
     }
@@ -947,17 +934,10 @@ void KeyManager::SetKey(S256KeyType id, Key256 key, u64 field1, u64 field2) {
 }
 
 bool KeyManager::KeyFileExists(bool title) {
-    const auto yuzu_keys_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::KeysDir);
-
-    if (title) {
-        return Common::FS::Exists(yuzu_keys_dir / "title.keys");
-    }
-
-    if (Settings::values.use_dev_keys) {
-        return Common::FS::Exists(yuzu_keys_dir / "dev.keys");
-    }
-
-    return Common::FS::Exists(yuzu_keys_dir / "prod.keys");
+    const auto keys_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::KeysDir);
+    if (title)
+        return Common::FS::Exists(keys_dir / "title.keys");
+    return Common::FS::Exists(keys_dir / "prod.keys");
 }
 
 void KeyManager::DeriveSDSeedLazy() {

src/core/crypto/key_manager.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 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
 
@@ -311,7 +314,6 @@ private:
     std::array<u8, 576> eticket_extended_kek{};
     RSAKeyPair<2048> eticket_rsa_keypair{};
 
-    bool dev_mode;
     void LoadFromFile(const std::filesystem::path& file_path, bool is_title_keys);
 
     template <size_t Size>

src/core/hle/service/set/system_settings_server.cpp

@@ -961,15 +961,23 @@ Result ISystemSettingsServer::SetPrimaryAlbumStorage(PrimaryAlbumStorage primary
 
 Result ISystemSettingsServer::GetBatteryLot(Out<BatteryLot> out_battery_lot) {
     LOG_INFO(Service_SET, "called");
-
     *out_battery_lot = {"YUZU0EMULATOR14022024"};
+    if (auto const s = ::Settings::values.serial_battery.GetValue(); !s.empty()) {
+        auto const max_size = out_battery_lot->lot_number.size();
+        auto const end = s.size() > max_size ? s.begin() + max_size : s.end();
+        std::copy(s.begin(), end, out_battery_lot->lot_number.begin());
+    }
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::GetSerialNumber(Out<SerialNumber> out_console_serial) {
     LOG_INFO(Service_SET, "called");
-
     *out_console_serial = {"YUZ10000000001"};
+    if (auto const s = ::Settings::values.serial_unit.GetValue(); !s.empty()) {
+        auto const max_size = out_console_serial->serial_number.size();
+        auto const end = s.size() > max_size ? s.begin() + max_size : s.end();
+        std::copy(s.begin(), end, out_console_serial->serial_number.begin());
+    }
     R_SUCCEED();
 }
 
@@ -1071,10 +1079,9 @@ Result ISystemSettingsServer::SetDeviceNickName(
 }
 
 Result ISystemSettingsServer::GetProductModel(Out<u32> out_product_model) {
-    const u32 product_model = 1;
-
+    // Most certainly should be 1 -- definitely should not be 2, but it's worth tinkering with anyways
+    u32 const product_model = 1;
     LOG_WARNING(Service_SET, "(STUBBED) called, product_model={}", product_model);
-
     *out_product_model = product_model;
     R_SUCCEED();
 }
@@ -1343,52 +1350,44 @@ Result ISystemSettingsServer::GetHttpAuthConfigs(Out<s32> out_count, OutBuffer<B
 }
 
 void ISystemSettingsServer::SetupSettings() {
-    auto system_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000050";
+    auto system_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000050";
     if (!LoadSettingsFile(system_dir, []() { return DefaultSystemSettings(); })) {
         ASSERT(false);
     }
 
-    auto private_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000052";
+    auto private_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000052";
     if (!LoadSettingsFile(private_dir, []() { return DefaultPrivateSettings(); })) {
         ASSERT(false);
     }
 
-    auto device_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000053";
+    auto device_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000053";
     if (!LoadSettingsFile(device_dir, []() { return DefaultDeviceSettings(); })) {
         ASSERT(false);
     }
 
-    auto appln_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000054";
+    auto appln_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000054";
     if (!LoadSettingsFile(appln_dir, []() { return DefaultApplnSettings(); })) {
         ASSERT(false);
     }
 }
 
 void ISystemSettingsServer::StoreSettings() {
-    auto system_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000050";
+    auto system_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000050";
     if (!StoreSettingsFile(system_dir, m_system_settings)) {
         LOG_ERROR(Service_SET, "Failed to store System settings");
     }
 
-    auto private_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000052";
+    auto private_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000052";
     if (!StoreSettingsFile(private_dir, m_private_settings)) {
         LOG_ERROR(Service_SET, "Failed to store Private settings");
     }
 
-    auto device_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000053";
+    auto device_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000053";
     if (!StoreSettingsFile(device_dir, m_device_settings)) {
         LOG_ERROR(Service_SET, "Failed to store Device settings");
     }
 
-    auto appln_dir =
-        Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000054";
+    auto appln_dir = Common::FS::GetEdenPath(Common::FS::EdenPath::NANDDir) / "system/save/8000000000000054";
     if (!StoreSettingsFile(appln_dir, m_appln_settings)) {
         LOG_ERROR(Service_SET, "Failed to store ApplLn settings");
     }
@@ -1399,9 +1398,8 @@ void ISystemSettingsServer::StoreSettingsThreadFunc(std::stop_token stop_token)
 
     while (Common::StoppableTimedWait(stop_token, std::chrono::minutes(1))) {
         std::scoped_lock l{m_save_needed_mutex};
-        if (!std::exchange(m_save_needed, false)) {
+        if (!std::exchange(m_save_needed, false))
             continue;
-        }
         StoreSettings();
     }
 }

src/yuzu/configuration/configure_debug.cpp

@@ -39,20 +39,34 @@ void ConfigureDebug::SetConfiguration() {
     ui->toggle_gdbstub->setChecked(Settings::values.use_gdbstub.GetValue());
     ui->gdbport_spinbox->setEnabled(Settings::values.use_gdbstub.GetValue());
     ui->gdbport_spinbox->setValue(Settings::values.gdbstub_port.GetValue());
-    ui->toggle_console->setEnabled(runtime_lock);
-    ui->toggle_console->setChecked(UISettings::values.show_console.GetValue());
     ui->log_filter_edit->setText(QString::fromStdString(Settings::values.log_filter.GetValue()));
     ui->flush_line->setChecked(Settings::values.log_flush_line.GetValue());
     ui->censor_username->setChecked(Settings::values.censor_username.GetValue());
-    ui->homebrew_args_edit->setText(QString::fromStdString(Settings::values.program_args.GetValue()));
-    ui->fs_access_log->setEnabled(runtime_lock);
-    ui->fs_access_log->setChecked(Settings::values.enable_fs_access_log.GetValue());
     ui->reporting_services->setChecked(Settings::values.reporting_services.GetValue());
     ui->dump_audio_commands->setChecked(Settings::values.dump_audio_commands.GetValue());
     ui->quest_flag->setChecked(Settings::values.quest_flag.GetValue());
     ui->use_debug_asserts->setChecked(Settings::values.use_debug_asserts.GetValue());
     ui->use_auto_stub->setChecked(Settings::values.use_auto_stub.GetValue());
     ui->enable_all_controllers->setChecked(Settings::values.enable_all_controllers.GetValue());
+    ui->extended_logging->setChecked(Settings::values.extended_logging.GetValue());
+    ui->perform_vulkan_check->setChecked(Settings::values.perform_vulkan_check.GetValue());
+#ifdef YUZU_USE_QT_WEB_ENGINE
+    ui->disable_web_applet->setChecked(Settings::values.disable_web_applet.GetValue());
+#else
+    ui->disable_web_applet->setChecked(true);
+#endif
+
+    // Immutable after starting
+    ui->serial_battery_edit->setEnabled(runtime_lock);
+    ui->serial_battery_edit->setText(QString::fromStdString(Settings::values.serial_battery.GetValue()));
+    ui->serial_board_edit->setEnabled(runtime_lock);
+    ui->serial_board_edit->setText(QString::fromStdString(Settings::values.serial_unit.GetValue()));
+    ui->homebrew_args_edit->setEnabled(runtime_lock);
+    ui->homebrew_args_edit->setText(QString::fromStdString(Settings::values.program_args.GetValue()));
+    ui->toggle_console->setEnabled(runtime_lock);
+    ui->toggle_console->setChecked(UISettings::values.show_console.GetValue());
+    ui->fs_access_log->setEnabled(runtime_lock);
+    ui->fs_access_log->setChecked(Settings::values.enable_fs_access_log.GetValue());
     ui->enable_renderdoc_hotkey->setEnabled(runtime_lock);
     ui->enable_renderdoc_hotkey->setChecked(Settings::values.enable_renderdoc_hotkey.GetValue());
     ui->disable_buffer_reorder->setEnabled(runtime_lock);
@@ -73,14 +87,7 @@ void ConfigureDebug::SetConfiguration() {
     ui->disable_macro_hle->setChecked(Settings::values.disable_macro_hle.GetValue());
     ui->disable_loop_safety_checks->setEnabled(runtime_lock);
     ui->disable_loop_safety_checks->setChecked(Settings::values.disable_shader_loop_safety_checks.GetValue());
-    ui->extended_logging->setChecked(Settings::values.extended_logging.GetValue());
     ui->perform_vulkan_check->setChecked(Settings::values.perform_vulkan_check.GetValue());
-#ifdef YUZU_USE_QT_WEB_ENGINE
-    ui->disable_web_applet->setChecked(Settings::values.disable_web_applet.GetValue());
-#else
-    ui->disable_web_applet->setChecked(true);
-    ui->disable_web_applet->setVisible(false);
-#endif
 }
 
 void ConfigureDebug::ApplyConfiguration() {

src/yuzu/configuration/configure_debug.ui

@@ -467,7 +467,87 @@
          <string>Debugging</string>
         </property>
         <layout class="QGridLayout" name="gridLayout_3">
+         <item row="6" column="0">
+          <widget class="QWidget" name="serial_battery_widget" native="true">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <layout class="QHBoxLayout" name="horizontalLayout_11">
+            <property name="leftMargin">
+             <number>0</number>
+            </property>
+            <property name="topMargin">
+             <number>0</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <property name="bottomMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="label_12">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Battery Serial:</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLineEdit" name="serial_battery_edit"/>
+            </item>
+           </layout>
+          </widget>
+         </item>
          <item row="7" column="0">
+          <widget class="QWidget" name="serial_board_widget" native="true">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <layout class="QHBoxLayout" name="horizontalLayout_12">
+            <property name="leftMargin">
+             <number>0</number>
+            </property>
+            <property name="topMargin">
+             <number>0</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <property name="bottomMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="label_13">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Unit Serial:</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLineEdit" name="serial_board_edit"/>
+            </item>
+           </layout>
+          </widget>
+         </item>
+         <item row="0" column="0">
           <spacer name="verticalSpacer_3">
            <property name="orientation">
             <enum>Qt::Orientation::Vertical</enum>
@@ -483,7 +563,7 @@
            </property>
           </spacer>
          </item>
-         <item row="5" column="0">
+         <item row="1" column="0">
           <widget class="QCheckBox" name="dump_audio_commands">
            <property name="toolTip">
             <string>Enable this to output the latest generated audio command list to the console. Only affects games using the audio renderer.</string>
@@ -493,14 +573,14 @@
            </property>
           </widget>
          </item>
-         <item row="0" column="0">
+         <item row="2" column="0">
           <widget class="QCheckBox" name="flush_line">
            <property name="text">
             <string>Flush log output on each line</string>
            </property>
           </widget>
          </item>
-         <item row="2" column="0">
+         <item row="3" column="0">
           <widget class="QCheckBox" name="fs_access_log">
            <property name="text">
             <string>Enable FS Access Log</string>
@@ -514,7 +594,7 @@
            </property>
           </widget>
          </item>
-         <item row="1" column="0">
+         <item row="5" column="0">
           <widget class="QCheckBox" name="censor_username">
            <property name="text">
             <string>Censor username in logs</string>