Add Support for Wii Motion Plus INSIDE Wii Remotes on Mac OS X.

This patch makes a few changes necessary for support for the new Wii
Remotes:

- For all OSes:
  - Adds a new bool member variable m_motion_plus_inside to identify
    the new Wii Remotes.
  - If we have a new Wii Remote, use a head byte of 0xa2. We could
    just change this behavior for all Wii Remotes, but an existing
    comment suggests that would break 3rd party Wii Remotes.

- On Mac OS X:
  - Expand the search criteria for the bluetooth scan. This is
    necessary because the new Wii Remote identifies with minor class
    kBluetoothDeviceClassMinorPeripheral2Gamepad, but the old Wii
    Remotes use minor class
    kBluetoothDeviceClassMinorPeripheral2Joystick (1).
  - Send commands on the interrupt channel, not the control
    channel. The new Wii Remotes require this; old ones are compatible
    with this. Note: 3rd party Wii Remots are untested with this
    change; the hope is they are still functional.
  - Get the name of the bluetooth device and see if it ends in
    "-TR". If so, set a member variable so we know it's the new kind
    of Wii Remote.

This should fix issue 5011 for Mac OS X:
http://code.google.com/p/dolphin-emu/issues/detail?id=5011

Source/Core/Core/Src/HW/WiimoteReal/IOdarwin.mm

@@ -129,7 +129,7 @@ int FindWiimotes(Wiimote **wm, int max_wiimotes)
 	[bti setInquiryLength: 5];
 	[bti setSearchCriteria: kBluetoothServiceClassMajorAny
 		majorDeviceClass: kBluetoothDeviceClassMajorPeripheral
-		minorDeviceClass: kBluetoothDeviceClassMinorPeripheral2Joystick
+		minorDeviceClass: kBluetoothDeviceClassMinorAny
 		];
 	[bti setUpdateNewDeviceNames: NO];
 
@@ -177,6 +177,10 @@ bool Wiimote::Connect()
 	if (IsConnected())
 		return false;
 
+	if ([btd remoteNameRequest:nil] == kIOReturnSuccess)
+		m_motion_plus_inside =
+			static_cast<bool>([[btd getName] hasSuffix:@"-TR"]);
+
 	[btd openL2CAPChannelSync: &cchan
 		withPSM: kBluetoothL2CAPPSMHIDControl delegate: cbt];
 	[btd openL2CAPChannelSync: &ichan
@@ -244,7 +248,7 @@ int Wiimote::IOWrite(unsigned char *buf, int len)
 	if (!IsConnected())
 		return 0;
 
-	ret = [cchan writeAsync: buf length: len refcon: nil];
+	ret = [ichan writeAsync: buf length: len refcon: nil];
 
 	if (ret == kIOReturnSuccess)
 		return len;

Source/Core/Core/Src/HW/WiimoteReal/WiimoteReal.cpp

@@ -50,6 +50,7 @@ Wiimote::Wiimote(const unsigned int _index)
 #endif
 	, leds(0), m_last_data_report(Report((u8 *)NULL, 0))
 	, m_channel(0), m_connected(false)
+	, m_motion_plus_inside(false)
 {
 #if defined(__linux__) && HAVE_BLUEZ
 	bdaddr = (bdaddr_t){{0, 0, 0, 0, 0, 0}};
@@ -142,15 +143,16 @@ void Wiimote::InterruptChannel(const u16 channel, const void* const data, const
 	rpt.second = (u8)size;
 	memcpy(rpt.first, (u8*)data, size);
 
-	// Convert output DATA packets to SET_REPORT packets.
-	// Nintendo Wiimotes work without this translation, but 3rd
+	// Convert output DATA packets to SET_REPORT packets for non-TR
+	// Wiimotes. Nintendo Wiimotes work without this translation, but 3rd
 	// party ones don't.
+	u8 head = m_motion_plus_inside ? 0xa2 : 0x52;
  	if (rpt.first[0] == 0xa2)
 	{
-		rpt.first[0] = 0x52;
+		rpt.first[0] = head;
  	}
 
- 	if (rpt.first[0] == 0x52 && rpt.first[1] == 0x18 && rpt.second == 23)
+ 	if (rpt.first[0] == head && rpt.first[1] == 0x18 && rpt.second == 23)
 	{
 		m_audio_reports.Push(rpt);
  		return;

Source/Core/Core/Src/HW/WiimoteReal/WiimoteReal.h

@@ -95,6 +95,7 @@ private:
 	void ThreadFunc();
 
 	bool				m_connected;
+	bool				m_motion_plus_inside;
 	std::thread			m_wiimote_thread;
 	Common::FifoQueue<Report>	m_read_reports;
 	Common::FifoQueue<Report>	m_write_reports;