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memory card refactoring

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This commit is contained in:
Chris Danford
2003-12-17 10:20:53 +00:00
parent 23623a1c64
commit e11afda65a
13 changed files with 531 additions and 307 deletions
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stepmania/src/arch/MemoryCard/MemoryCardDriver_Linux.cpp
+239
View File
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#include "global.h"
#include "MemoryCardDriver_Linux.h"
#include <fstream>
#include "RageLog.h"
#include "RageUtil.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <linux/types.h>
static const char *USB_DEVICE_LIST_FILE = "/proc/bus/usb/devices";
MemoryCardDriver_Linux::MemoryCardDriver_Linux()
{
m_lastModTime = 0;
m_fds = open(USB_DEVICE_LIST_FILE, O_RDONLY);
if( m_fds == -1 )
LOG->Warn( "Failed to open '%s'", USB_DEVICE_LIST_FILE );
}
MemoryCardDriver_Linux::~MemoryCardDriver_Linux()
{
if( m_fds != -1 )
{
close( m_fds );
m_fds = -1;
}
}
bool MemoryCardDriver_Linux::StorageDevicesChanged()
{
// has USB_DEVICE_LIST_FILE changed?
if( g_fds == -1 ) // file not opened
return false; // we'll never know...
struct stat st;
if( fstat(g_fds, &st) == -1 )
{
LOG->Warn( "stat of '%s' failed.", USB_DEVICE_LIST_FILE );
return false;
}
bool bChanged = st.st_mtime != m_lastModTime;
m_lastModTime = st.st_mtime;
return bChanged;
}
void MemoryCardDriver_Linux::GetStorageDevices( vector<UsbStorageDevice>& vDevicesOut )
{
vDevicesOut.clear();
{
// Find all attached USB devices. Output looks like:
// T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
// B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
// D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
// P: Vendor=0000 ProdID=0000 Rev= 0.00
// S: Product=USB UHCI Root Hub
// S: SerialNumber=ff80
// C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
// I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
// E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
// T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
// D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
// P: Vendor=04e8 ProdID=0100 Rev= 0.01
// S: Manufacturer=KINGSTON
// S: Product=USB DRIVE
// S: SerialNumber=1125198948886
// C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 90mA
// I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
// E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
// E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
ifstream f;
CString fn = "/proc/bus/usb/devices";
f.open(fn);
if( !f.is_open() )
{
LOG->Warn( "can't open '%s'", fn.c_str() );
return;
}
UsbStorageDevice usbd;
CString sLine;
while( getline(f, sLine) )
{
int iRet, iThrowAway;
// T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
int iBus, iPort, iDevice;
iRet = sscanf( sLine.c_str(), "T: Bus=%d Lev=%d Prnt=%d Port=%d Cnt=%d Dev#=%d Spd=%d MxCh=%d", &iBus, &iThrowAway, &iThrowAway, &iPort, &iThrowAway, &iDevice, &iThrowAway, &iThrowAway );
if( iRet == 8 )
{
usbd.iBus = iBus;
usbd.iDeviceOnBus = iDevice;
usbd.iPortOnHub = iPort;
continue; // stop processing this line
}
// S: SerialNumber=ff80
char szSerial[1024];
iRet = sscanf( sLine.c_str(), "S: SerialNumber=%[^\n]", szSerial );
if( iRet == 1 )
{
usbd.sSerial = szSerial;
continue; // stop processing this line
}
// I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
int iClass;
iRet = sscanf( sLine.c_str(), "I: If#=%d Alt=%d #EPs=%d Cls=%d", &iThrowAway, &iThrowAway, &iThrowAway, &iClass );
if( iRet == 4 )
{
if( iClass == 8 ) // storage class
vDevicesOut.push_back( usbd );
continue; // stop processing this line
}
}
}
{
// Find the usb-storage device index for all storage class devices.
for( unsigned i=0; i<vDevicesOut.size(); i++ )
{
UsbStorageDevice& usbd = vDevicesOut[i];
// Output looks like:
// Host scsi0: usb-storage
// Vendor: KINGSTON
// Product: USB DRIVE
// Serial Number: 1125198948886
// Protocol: Transparent SCSI
// Transport: Bulk
// GUID: 04e801000001125198948886
// Attached: Yes
CString fn = ssprintf( "/proc/scsi/usb-storage-%d/%d", i, i );
ifstream f;
f.open(fn);
if( !f.is_open() )
{
LOG->Warn( "can't open '%s'", fn.c_str() );
return;
}
CString sLine;
while( getline(f, sLine) )
{
// Serial Number: 1125198948886
char szSerial[1024];
int iRet = sscanf( sLine.c_str(), "Serial Number: %[^\n]", szSerial );
if( iRet == 1 ) // we found our line
{
usbd.iUsbStorageIndex = i;
break; // stop looking
}
}
}
}
{
// Find where each device is mounted. Output looks like:
// /dev/sda1 /mnt/flash1 auto noauto,owner 0 0
// /dev/sdb1 /mnt/flash2 auto noauto,owner 0 0
// /dev/sdc1 /mnt/flash3 auto noauto,owner 0 0
CString fn = "/etc/fstab";
ifstream f;
f.open(fn);
if( !f.is_open() )
{
LOG->Warn( "can't open '%s'", fn.c_str() );
return;
}
CString sLine;
while( getline(f, sLine) )
{
// /dev/sda1 /mnt/flash1 auto noauto,owner 0 0
char cScsiDev;
char szMountPoint[1024];
int iRet = sscanf( sLine.c_str(), "/dev/sd%c1 %s", &cScsiDev, szMountPoint );
if( iRet != 2 )
continue; // don't process this line
int iUsbStorageIndex = cScsiDev - 'a';
CString sMountPoint = szMountPoint;
TrimLeft( sMountPoint );
TrimRight( sMountPoint );
// search for the usb-storage device corresponding to the SCSI device
for( unsigned i=0; i<vDevicesOut.size(); i++ )
{
UsbStorageDevice& usbd = vDevicesOut[i];
if( usbd.iUsbStorageIndex == iUsbStorageIndex ) // found our match
{
usbd.sOsMountDir = sMountPoint;
break; // stop looking for a match
}
}
}
}
}
bool MemoryCardDriver_Linux::MountAndTestWrite( UsbStorageDevice* pDevice )
{
if( !pDevice->sOsMountDir.empty() )
return false;
CString sCommand = "mount " + usbd.sOsMountDir;
system( sCommand );
// Try to write a file.
// TODO: Can we use RageFile for this?
const CString sFile = "temp";
int fd = open( sFile, O_WRONLY|O_CREAT|O_TRUNC );
if( fd == -1 )
return false;
close( fd );
remove( sFile );
return true;
}
void MemoryCardDriver_Linux::Unmount( UsbStorageDevice* pDevice )
{
if( !pDevice->sOsMountDir.empty() )
return;
CString sCommand = "umount " + usbd.sOsMountDir;
system( sCommand );
}
/*
* Copyright (c) 2003 by the person(s) listed below. All rights reserved.
* Chris Danford
*/