dolphin/Source/Plugins/Plugin_Wiimote/Src/wiimote_real.cpp

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// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "pluginspecs_wiimote.h"
#include "wiiuse.h"
#include <queue>
#include "Common.h"
#include "Thread.h"
#include "wiimote_hid.h"
#include "EmuMain.h"
extern SWiimoteInitialize g_WiimoteInitialize;
//extern void __Log(int log, const char *format, ...);
//extern void __Log(int log, int v, const char *format, ...);
namespace WiiMoteReal
{
#define MAX_WIIMOTES 1
//******************************************************************************
// Forwarding
//******************************************************************************
class CWiiMote;
#ifdef _WIN32
DWORD WINAPI ReadWiimote_ThreadFunc(void* arg);
#else
void* ReadWiimote_ThreadFunc(void* arg);
#endif
//******************************************************************************
// Variable declarations
//******************************************************************************
wiimote_t** g_WiiMotesFromWiiUse = NULL;
Common::Thread* g_pReadThread = NULL;
int g_NumberOfWiiMotes;
CWiiMote* g_WiiMotes[MAX_WIIMOTES];
bool g_Shutdown = false;
//******************************************************************************
// Probably this class should be in its own file
//******************************************************************************
class CWiiMote
{
public:
CWiiMote(u8 _WiimoteNumber, wiimote_t* _pWiimote)
: m_WiimoteNumber(_WiimoteNumber)
, m_channelID(0)
, m_pWiiMote(_pWiimote)
, m_pCriticalSection(NULL)
, m_LastReportValid(false)
{
m_pCriticalSection = new Common::CriticalSection();
wiiuse_set_leds(m_pWiiMote, WIIMOTE_LED_4);
#ifdef _WIN32
// F|RES: i dunno if we really need this
CancelIo(m_pWiiMote->dev_handle);
#endif
}
virtual ~CWiiMote()
{
delete m_pCriticalSection;
};
// send raw HID data from the core to wiimote
void SendData(u16 _channelID, const u8* _pData, u32 _Size)
{
m_channelID = _channelID;
m_pCriticalSection->Enter();
{
SEvent WriteEvent;
memcpy(WriteEvent.m_PayLoad, _pData+1, _Size-1);
m_EventWriteQueue.push(WriteEvent);
}
m_pCriticalSection->Leave();
}
// read data from wiimote (but don't send it to the core, just filter
// and queue)
void ReadData()
{
m_pCriticalSection->Enter();
if (!m_EventWriteQueue.empty())
{
SEvent& rEvent = m_EventWriteQueue.front();
wiiuse_io_write(m_pWiiMote, (byte*)rEvent.m_PayLoad, MAX_PAYLOAD);
m_EventWriteQueue.pop();
}
m_pCriticalSection->Leave();
if (wiiuse_io_read(m_pWiiMote))
{
const byte* pBuffer = m_pWiiMote->event_buf;
// check if we have a channel (connection) if so save the
// data...
if (m_channelID > 0)
{
m_pCriticalSection->Enter();
// filter out reports
if (pBuffer[0] >= 0x30)
{
memcpy(m_LastReport.m_PayLoad, pBuffer,
MAX_PAYLOAD);
m_LastReportValid = true;
}
else
{
SEvent ImportantEvent;
memcpy(ImportantEvent.m_PayLoad, pBuffer,
MAX_PAYLOAD);
m_EventReadQueue.push(ImportantEvent);
}
m_pCriticalSection->Leave();
}
}
};
// send queued data to the core
void Update()
{
m_pCriticalSection->Enter();
if (m_EventReadQueue.empty())
{
if (m_LastReportValid)
SendEvent(m_LastReport);
}
else
{
SendEvent(m_EventReadQueue.front());
m_EventReadQueue.pop();
}
m_pCriticalSection->Leave();
};
private:
struct SEvent
{
SEvent()
{
memset(m_PayLoad, 0, MAX_PAYLOAD);
}
byte m_PayLoad[MAX_PAYLOAD];
};
typedef std::queue<SEvent> CEventQueue;
u8 m_WiimoteNumber; // just for debugging
u16 m_channelID;
wiimote_t* m_pWiiMote;
Common::CriticalSection* m_pCriticalSection;
CEventQueue m_EventReadQueue;
CEventQueue m_EventWriteQueue;
bool m_LastReportValid;
SEvent m_LastReport;
void SendEvent(SEvent& _rEvent)
{
// we don't have an answer channel
if (m_channelID == 0)
return;
// check event buffer;
u8 Buffer[1024];
u32 Offset = 0;
hid_packet* pHidHeader = (hid_packet*)(Buffer + Offset);
Offset += sizeof(hid_packet);
pHidHeader->type = HID_TYPE_DATA;
pHidHeader->param = HID_PARAM_INPUT;
memcpy(&Buffer[Offset], _rEvent.m_PayLoad, MAX_PAYLOAD);
Offset += MAX_PAYLOAD;
g_WiimoteInitialize.pWiimoteInput(m_channelID, Buffer, Offset);
}
};
//******************************************************************************
// Function Definitions
//******************************************************************************
int Initialize()
{
memset(g_WiiMotes, 0, sizeof(CWiiMote*) * MAX_WIIMOTES);
g_WiiMotesFromWiiUse = wiiuse_init(MAX_WIIMOTES);
g_NumberOfWiiMotes = wiiuse_find(g_WiiMotesFromWiiUse, MAX_WIIMOTES, 5);
for (int i=0; i<g_NumberOfWiiMotes; i++)
{
g_WiiMotes[i] = new CWiiMote(i+1, g_WiiMotesFromWiiUse[i]);
}
if (g_NumberOfWiiMotes > 0)
g_pReadThread = new Common::Thread(ReadWiimote_ThreadFunc, NULL);
return g_NumberOfWiiMotes;
}
void DoState(void* ptr, int mode)
{}
void Shutdown(void)
{
g_Shutdown = true;
// stop the thread
if (g_pReadThread != NULL)
{
g_pReadThread->WaitForDeath();
delete g_pReadThread;
g_pReadThread = NULL;
}
// delete the wiimotes
for (int i=0; i<g_NumberOfWiiMotes; i++)
{
delete g_WiiMotes[i];
g_WiiMotes[i] = NULL;
}
// clean up wiiuse
wiiuse_cleanup(g_WiiMotesFromWiiUse, g_NumberOfWiiMotes);
}
void InterruptChannel(u16 _channelID, const void* _pData, u32 _Size)
{
g_WiiMotes[0]->SendData(_channelID, (const u8*)_pData, _Size);
}
void ControlChannel(u16 _channelID, const void* _pData, u32 _Size)
{
g_WiiMotes[0]->SendData(_channelID, (const u8*)_pData, _Size);
}
void Update()
{
for (int i=0; i<g_NumberOfWiiMotes; i++)
{
g_WiiMotes[i]->Update();
}
}
#ifdef _WIN32
DWORD WINAPI ReadWiimote_ThreadFunc(void* arg)
#else
void *ReadWiimote_ThreadFunc(void* arg)
#endif
{
while (!g_Shutdown)
{
for (int i=0; i<g_NumberOfWiiMotes; i++)
{
g_WiiMotes[i]->ReadData();
}
}
return 0;
}
}; // end of namespace