Matt McCutchen
cb7efb1570
On my Fedora 20 system, closedir apparently frees the dirent, and reading it afterwards returns garbage data. This prevented my dance pad from being detected.
130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
#include "LinuxInputManager.h"
|
|
|
|
#include "InputHandler_Linux_Event.h"
|
|
#include "InputHandler_Linux_Joystick.h"
|
|
|
|
#include "RageInput.h" // g_sInputDrivers
|
|
#include "RageLog.h"
|
|
#include "Foreach.h"
|
|
|
|
#include <string> // std::string::npos
|
|
#include <dirent.h>
|
|
#include <errno.h>
|
|
|
|
RString getDevice(RString inputDir, RString type)
|
|
{
|
|
RString result = "";
|
|
DIR* dir = opendir( inputDir.c_str() );
|
|
if(dir == NULL)
|
|
{ LOG->Warn("LinuxInputManager: Couldn't open %s: %s.", inputDir.c_str(), strerror(errno) ); return ""; }
|
|
|
|
struct dirent* d;
|
|
while( ( d = readdir(dir) ) != NULL)
|
|
if( strncmp( type.c_str(), d->d_name, type.size() ) == 0)
|
|
{
|
|
result = RString("/dev/input/") + d->d_name;
|
|
break;
|
|
}
|
|
|
|
closedir(dir);
|
|
return result;
|
|
}
|
|
|
|
LinuxInputManager::LinuxInputManager()
|
|
{
|
|
m_bEventEnabled = g_sInputDrivers.Get().find("LinuxEvent") != std::string::npos;
|
|
m_bJoystickEnabled = g_sInputDrivers.Get().find("LinuxJoystick") != std::string::npos;
|
|
// HACK: If empty, assume both are enabled
|
|
if( g_sInputDrivers.Get() == "" )
|
|
{ m_bEventEnabled = true; m_bJoystickEnabled = true; }
|
|
|
|
m_EventDriver = NULL;
|
|
m_JoystickDriver = NULL;
|
|
|
|
// XXX: Can I use RageFile for this?
|
|
DIR* sysClassInput = opendir("/sys/class/input");
|
|
if( sysClassInput == NULL )
|
|
{
|
|
// XXX: Probably should throw a Dialog. But Linux doesn't have a DialogDriver yet so eh.
|
|
LOG->Warn("Couldn't open /sys/class/input: %s. Joysticks will not work!", strerror(errno) );
|
|
return;
|
|
}
|
|
|
|
struct dirent* d;
|
|
while( ( d = readdir(sysClassInput) ) != NULL)
|
|
{
|
|
if( strncmp( "input", d->d_name, 5) != 0) continue;
|
|
|
|
RString dName = RString("/sys/class/input/") + d->d_name;
|
|
|
|
bool bEventPresent = getDevice(dName, "event") != "";
|
|
if( m_bEventEnabled && bEventPresent )
|
|
{ m_vsPendingEventDevices.push_back(dName); continue; }
|
|
|
|
bool bJoystickPresent = getDevice(dName, "js") != "";
|
|
if( m_bJoystickEnabled && bJoystickPresent )
|
|
{ m_vsPendingJoystickDevices.push_back(dName); continue; }
|
|
|
|
if( !bEventPresent && !bJoystickPresent )
|
|
LOG->Info("LinuxInputManager: %s seems to have no eventNN or jsNN.", dName.c_str() );
|
|
}
|
|
}
|
|
|
|
void LinuxInputManager::InitDriver(InputHandler_Linux_Event* driver)
|
|
{
|
|
m_EventDriver = driver;
|
|
|
|
FOREACH(RString, m_vsPendingEventDevices, dev)
|
|
{
|
|
RString devFile = getDevice(*dev, "event");
|
|
ASSERT( devFile != "" );
|
|
|
|
if( ! driver->TryDevice(devFile) && m_bJoystickEnabled && getDevice(*dev, "js") != "" )
|
|
m_vsPendingJoystickDevices.push_back(*dev);
|
|
}
|
|
if( m_JoystickDriver != NULL ) InitDriver(m_JoystickDriver);
|
|
|
|
m_vsPendingEventDevices.clear();
|
|
}
|
|
|
|
void LinuxInputManager::InitDriver(InputHandler_Linux_Joystick* driver)
|
|
{
|
|
m_JoystickDriver = driver;
|
|
|
|
FOREACH(RString, m_vsPendingJoystickDevices, dev)
|
|
{
|
|
RString devFile = getDevice(*dev, "js");
|
|
ASSERT( devFile != "" );
|
|
|
|
driver->TryDevice(devFile);
|
|
}
|
|
|
|
m_vsPendingJoystickDevices.clear();
|
|
}
|
|
|
|
LinuxInputManager* LINUXINPUT = NULL; // global and accessible anywhere in our program
|
|
|
|
/*
|
|
* (c) 2013 Ben "root" Anderson
|
|
* All rights reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, and/or sell copies of the Software, and to permit persons to
|
|
* whom the Software is furnished to do so, provided that the above
|
|
* copyright notice(s) and this permission notice appear in all copies of
|
|
* the Software and that both the above copyright notice(s) and this
|
|
* permission notice appear in supporting documentation.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
|
|
* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
|
|
* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
|
|
* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
|
|
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/ |