Add ability to passthrough a Bluetooth adapter

This adds the ability to passthrough a whole Bluetooth adapter and skip
the majority of the Bluetooth emulation code. We use libusb to send HCI
commands, receive HCI events and transfer ACL data directly to the
first adapter that is found or to a specific adapter (if configured to)

This is possible because the Wii's Bluetooth module is actually just
a pretty standard Bluetooth adapter…

…except for two vendor-specific commands, for which replies are faked,
and also for the sync button. This adds a hotkey that works in the
exact same way as the sync button would on a Wii: it triggers an HCI
event, which emulated software interpret as a command to perform
a BT inquiry.

In this mode, the current emulated Wiimote will inevitably not work
at all, so this commit also disables the "connect Wiimote" menu.

Source/Core/Core/CMakeLists.txt

@@ -144,7 +144,7 @@ set(SRCS	ActionReplay.cpp
 			IPC_HLE/WII_IPC_HLE_Device_net.cpp
 			IPC_HLE/WII_IPC_HLE_Device_net_ssl.cpp
 			IPC_HLE/WII_IPC_HLE_Device_sdio_slot0.cpp
-			IPC_HLE/WII_IPC_HLE_Device_usb.cpp
+			IPC_HLE/WII_IPC_HLE_Device_usb_emu.cpp
 			IPC_HLE/WII_IPC_HLE_Device_usb_kbd.cpp
 			IPC_HLE/WII_IPC_HLE_Device_usb_ven.cpp
 			IPC_HLE/WII_IPC_HLE_WiiMote.cpp
@@ -241,7 +241,8 @@ set(LIBS
 if(LIBUSB_FOUND)
 	# Using shared LibUSB
 	set(LIBS	${LIBS}	${LIBUSB_LIBRARIES})
-	set(SRCS	${SRCS}	IPC_HLE/WII_IPC_HLE_Device_hid.cpp)
+	set(SRCS	${SRCS}	IPC_HLE/WII_IPC_HLE_Device_hid.cpp
+	        	       	IPC_HLE/WII_IPC_HLE_Device_usb_real.cpp)
 endif(LIBUSB_FOUND)
 
 set(LIBS ${LIBS} ${MBEDTLS_LIBRARIES})

Source/Core/Core/ConfigManager.cpp

@@ -84,6 +84,7 @@ void SConfig::SaveSettings()
   SaveInputSettings(ini);
   SaveFifoPlayerSettings(ini);
   SaveAnalyticsSettings(ini);
+  SaveBluetoothPassthroughSettings(ini);
 
   ini.Save(File::GetUserPath(F_DOLPHINCONFIG_IDX));
   m_SYSCONF->Save();
@@ -327,6 +328,15 @@ void SConfig::SaveAnalyticsSettings(IniFile& ini)
   analytics->Set("PermissionAsked", m_analytics_permission_asked);
 }
 
+void SConfig::SaveBluetoothPassthroughSettings(IniFile& ini)
+{
+  IniFile::Section* section = ini.GetOrCreateSection("BluetoothPassthrough");
+
+  section->Set("Mode", m_bt_passthrough_mode);
+  section->Set("VID", m_bt_passthrough_vid);
+  section->Set("PID", m_bt_passthrough_pid);
+}
+
 void SConfig::LoadSettings()
 {
   INFO_LOG(BOOT, "Loading Settings from %s", File::GetUserPath(F_DOLPHINCONFIG_IDX).c_str());
@@ -343,6 +353,7 @@ void SConfig::LoadSettings()
   LoadInputSettings(ini);
   LoadFifoPlayerSettings(ini);
   LoadAnalyticsSettings(ini);
+  LoadBluetoothPassthroughSettings(ini);
 
   m_SYSCONF = new SysConf();
 }
@@ -623,6 +634,15 @@ void SConfig::LoadAnalyticsSettings(IniFile& ini)
   analytics->Get("PermissionAsked", &m_analytics_permission_asked, false);
 }
 
+void SConfig::LoadBluetoothPassthroughSettings(IniFile& ini)
+{
+  IniFile::Section* section = ini.GetOrCreateSection("BluetoothPassthrough");
+
+  section->Get("Mode", &m_bt_passthrough_mode, BLUETOOTH_PASSTHROUGH_DISABLED);
+  section->Get("VID", &m_bt_passthrough_vid, -1);
+  section->Get("PID", &m_bt_passthrough_pid, -1);
+}
+
 void SConfig::LoadDefaults()
 {
   bEnableDebugging = false;

Source/Core/Core/ConfigManager.h

@@ -136,6 +136,16 @@ struct SConfig : NonCopyable
   bool m_analytics_enabled;
   bool m_analytics_permission_asked;
 
+  // Bluetooth passthrough mode settings
+  enum BluetoothPassthroughMode
+  {
+    BLUETOOTH_PASSTHROUGH_ENABLED,
+    BLUETOOTH_PASSTHROUGH_DISABLED,
+  };
+  int m_bt_passthrough_mode = BLUETOOTH_PASSTHROUGH_DISABLED;
+  int m_bt_passthrough_pid = -1;
+  int m_bt_passthrough_vid = -1;
+
   // Fifo Player related settings
   bool bLoopFifoReplay;
 
@@ -310,6 +320,7 @@ struct SConfig : NonCopyable
   void SaveMovieSettings(IniFile& ini);
   void SaveFifoPlayerSettings(IniFile& ini);
   void SaveAnalyticsSettings(IniFile& ini);
+  void SaveBluetoothPassthroughSettings(IniFile& ini);
 
   void LoadGeneralSettings(IniFile& ini);
   void LoadInterfaceSettings(IniFile& ini);
@@ -321,6 +332,7 @@ struct SConfig : NonCopyable
   void LoadMovieSettings(IniFile& ini);
   void LoadFifoPlayerSettings(IniFile& ini);
   void LoadAnalyticsSettings(IniFile& ini);
+  void LoadBluetoothPassthroughSettings(IniFile& ini);
 
   static SConfig* m_Instance;
 };

Source/Core/Core/Core.cpp

@@ -51,7 +51,7 @@
 #include "Core/HW/SystemTimers.h"
 #include "Core/HW/VideoInterface.h"
 #include "Core/HW/Wiimote.h"
-#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb.h"
+#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_emu.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_WiiMote.h"
 #include "Core/IPC_HLE/WII_Socket.h"
 #include "Core/Movie.h"
@@ -527,7 +527,8 @@ void EmuThread()
   }
 
   // Load and Init Wiimotes - only if we are booting in Wii mode
-  if (core_parameter.bWii)
+  if (core_parameter.bWii &&
+      SConfig::GetInstance().m_bt_passthrough_mode == SConfig::BLUETOOTH_PASSTHROUGH_DISABLED)
   {
     if (init_controllers)
       Wiimote::Initialize(s_window_handle, !s_state_filename.empty() ?

Source/Core/Core/Core.vcxproj

@@ -169,7 +169,9 @@
     <ClCompile Include="HW\WiiSaveCrypted.cpp" />
     <ClCompile Include="IPC_HLE\ICMPWin.cpp" />
     <ClCompile Include="IPC_HLE\WiiMote_HID_Attr.cpp" />
-    <ClCompile Include="IPC_HLE\WII_IPC_HLE.cpp" />
+    <ClCompile Include="IPC_HLE\WII_IPC_HLE.cpp">
+      <DisableSpecificWarnings>4200;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+    </ClCompile>
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_DI.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_es.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_FileIO.cpp" />
@@ -184,8 +186,11 @@
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_net.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_net_ssl.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_sdio_slot0.cpp" />
-    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb.cpp" />
+    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_emu.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_kbd.cpp" />
+    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_real.cpp">
+      <DisableSpecificWarnings>4200;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+    </ClCompile>
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_ven.cpp" />
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_WiiMote.cpp" />
     <ClCompile Include="IPC_HLE\WII_Socket.cpp" />
@@ -388,8 +393,10 @@
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_net_ssl.h" />
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_sdio_slot0.h" />
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_stm.h" />
-    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb.h" />
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_base.h" />
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_emu.h" />
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_kbd.h" />
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_real.h" />
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_ven.h" />
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_WiiMote.h" />
     <ClInclude Include="IPC_HLE\WII_Socket.h" />
@@ -480,4 +487,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

Source/Core/Core/Core.vcxproj.filters

@@ -588,7 +588,10 @@
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_hid.cpp">
       <Filter>IPC HLE %28IOS/Starlet%29\USB</Filter>
     </ClCompile>
-    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb.cpp">
+    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_emu.cpp">
+      <Filter>IPC HLE %28IOS/Starlet%29\USB/BT/Wiimote</Filter>
+    </ClCompile>
+    <ClCompile Include="IPC_HLE\WII_IPC_HLE_Device_usb_real.cpp">
       <Filter>IPC HLE %28IOS/Starlet%29\USB/BT/Wiimote</Filter>
     </ClCompile>
     <ClCompile Include="IPC_HLE\WII_IPC_HLE_WiiMote.cpp">
@@ -1145,7 +1148,13 @@
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_hid.h">
       <Filter>IPC HLE %28IOS/Starlet%29\USB</Filter>
     </ClInclude>
-    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb.h">
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_base.h">
+      <Filter>IPC HLE %28IOS/Starlet%29\USB/BT/Wiimote</Filter>
+    </ClInclude>
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_emu.h">
+      <Filter>IPC HLE %28IOS/Starlet%29\USB/BT/Wiimote</Filter>
+    </ClInclude>
+    <ClInclude Include="IPC_HLE\WII_IPC_HLE_Device_usb_real.h">
       <Filter>IPC HLE %28IOS/Starlet%29\USB/BT/Wiimote</Filter>
     </ClInclude>
     <ClInclude Include="IPC_HLE\WII_IPC_HLE_WiiMote.h">
@@ -1247,4 +1256,4 @@
   <ItemGroup>
     <Text Include="CMakeLists.txt" />
   </ItemGroup>
-</Project>
+</Project>

Source/Core/Core/HotkeyManager.cpp

@@ -32,6 +32,7 @@ const std::string hotkey_labels[] = {
     _trans("Take Screenshot"),
     _trans("Exit"),
 
+    _trans("Trigger Sync Button"),
     _trans("Connect Wiimote 1"),
     _trans("Connect Wiimote 2"),
     _trans("Connect Wiimote 3"),

Source/Core/Core/HotkeyManager.h

@@ -31,6 +31,7 @@ enum Hotkey
   HK_SCREENSHOT,
   HK_EXIT,
 
+  HK_TRIGGER_SYNC_BUTTON,
   HK_WIIMOTE1_CONNECT,
   HK_WIIMOTE2_CONNECT,
   HK_WIIMOTE3_CONNECT,

Source/Core/Core/IPC_HLE/WII_IPC_HLE.cpp

@@ -50,8 +50,9 @@ They will also generate a true or false return for UpdateInterrupts() in WII_IPC
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_net_ssl.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_sdio_slot0.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_stm.h"
-#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb.h"
+#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_emu.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_kbd.h"
+#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_real.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_ven.h"
 
 #if defined(__LIBUSB__) || defined(_WIN32)
@@ -128,7 +129,11 @@ void Reinit()
   num_devices = 0;
 
   // Build hardware devices
-  AddDevice<CWII_IPC_HLE_Device_usb_oh1_57e_305>("/dev/usb/oh1/57e/305");
+  if (SConfig::GetInstance().m_bt_passthrough_mode == SConfig::BLUETOOTH_PASSTHROUGH_DISABLED)
+    AddDevice<CWII_IPC_HLE_Device_usb_oh1_57e_305_emu>("/dev/usb/oh1/57e/305");
+  else
+    AddDevice<CWII_IPC_HLE_Device_usb_oh1_57e_305_real>("/dev/usb/oh1/57e/305");
+
   AddDevice<CWII_IPC_HLE_Device_stm_immediate>("/dev/stm/immediate");
   AddDevice<CWII_IPC_HLE_Device_stm_eventhook>("/dev/stm/eventhook");
   AddDevice<CWII_IPC_HLE_Device_fs>("/dev/fs");

Source/Core/Core/IPC_HLE/WII_IPC_HLE_Device_es.cpp

@@ -47,7 +47,7 @@
 #include "Core/ConfigManager.h"
 #include "Core/HW/DVDInterface.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_Device_es.h"
-#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb.h"
+#include "Core/IPC_HLE/WII_IPC_HLE_Device_usb_emu.h"
 #include "Core/IPC_HLE/WII_IPC_HLE_WiiMote.h"
 #include "Core/Movie.h"
 #include "Core/PowerPC/PowerPC.h"
@@ -998,28 +998,33 @@ IPCCommandResult CWII_IPC_HLE_Device_es::IOCtlV(u32 _CommandAddress)
     }
     else
     {
-      CWII_IPC_HLE_Device_usb_oh1_57e_305* s_Usb = GetUsbPointer();
-      size_t size = s_Usb->m_WiiMotes.size();
-      bool* wiiMoteConnected = new bool[size];
-      for (unsigned int i = 0; i < size; i++)
-        wiiMoteConnected[i] = s_Usb->m_WiiMotes[i].IsConnected();
+      bool* wiiMoteConnected = new bool[MAX_BBMOTES];
+      if (SConfig::GetInstance().m_bt_passthrough_mode == SConfig::BLUETOOTH_PASSTHROUGH_DISABLED)
+      {
+        CWII_IPC_HLE_Device_usb_oh1_57e_305_emu* s_Usb = GetUsbPointer();
+        for (unsigned int i = 0; i < MAX_BBMOTES; i++)
+          wiiMoteConnected[i] = s_Usb->m_WiiMotes[i].IsConnected();
+      }
 
       WII_IPC_HLE_Interface::Reset(true);
       WII_IPC_HLE_Interface::Reinit();
-      s_Usb = GetUsbPointer();
-      for (unsigned int i = 0; i < s_Usb->m_WiiMotes.size(); i++)
+
+      if (SConfig::GetInstance().m_bt_passthrough_mode == SConfig::BLUETOOTH_PASSTHROUGH_DISABLED)
       {
-        if (wiiMoteConnected[i])
+        CWII_IPC_HLE_Device_usb_oh1_57e_305_emu* s_Usb = GetUsbPointer();
+        for (unsigned int i = 0; i < MAX_BBMOTES; i++)
         {
-          s_Usb->m_WiiMotes[i].Activate(false);
-          s_Usb->m_WiiMotes[i].Activate(true);
-        }
-        else
-        {
-          s_Usb->m_WiiMotes[i].Activate(false);
+          if (wiiMoteConnected[i])
+          {
+            s_Usb->m_WiiMotes[i].Activate(false);
+            s_Usb->m_WiiMotes[i].Activate(true);
+          }
+          else
+          {
+            s_Usb->m_WiiMotes[i].Activate(false);
+          }
         }
       }
-
       delete[] wiiMoteConnected;
       WII_IPC_HLE_Interface::SetDefaultContentFile(tContentFile);
     }