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path: root/rbutil/rbutilqt/autodetection.cpp
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/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 *
 *   Copyright (C) 2007 by Dominik Wenger
 *   $Id$
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include "autodetection.h"

#if defined(Q_OS_LINUX) || defined(Q_OS_MACX)
#include <stdio.h>
#include <mntent.h>
#include <usb.h>
#endif

Autodetection::Autodetection(QObject* parent): QObject(parent)
{

}

bool Autodetection::detect()
{
    m_device = "";
    m_mountpoint = "";
    m_errdev = "";

    detectUsb();

    // Try detection via rockbox.info / rbutil.log
    QStringList mountpoints = getMountpoints();

    for(int i=0; i< mountpoints.size();i++)
    {
        // do the file checking
        QDir dir(mountpoints.at(i));
        if(dir.exists())
        {
            // check logfile first.
            if(QFile(mountpoints.at(i) + "/.rockbox/rbutil.log").exists()) {
                QSettings log(mountpoints.at(i) + "/.rockbox/rbutil.log",
                              QSettings::IniFormat, this);
                if(!log.value("platform").toString().isEmpty()) {
                    if(m_device.isEmpty())
                        m_device = log.value("platform").toString();
                    m_mountpoint = mountpoints.at(i);
                    qDebug() << "rbutil.log detected:" << m_device << m_mountpoint;
                    return true;
                }
            }

            // check rockbox-info.txt afterwards.
            QFile file(mountpoints.at(i) + "/.rockbox/rockbox-info.txt");
            if(file.exists())
            {
                file.open(QIODevice::ReadOnly | QIODevice::Text);
                QString line = file.readLine();
                if(line.startsWith("Target: "))
                {
                    line.remove("Target: ");
                    if(m_device.isEmpty())
                        m_device = line.trimmed(); // trim whitespaces
                    m_mountpoint = mountpoints.at(i);
                    qDebug() << "rockbox-info.txt detected:" << m_device << m_mountpoint;
                    return true;
                }
            }
            // check for some specific files in root folder
            QDir root(mountpoints.at(i));
            QStringList rootentries = root.entryList(QDir::Files);
            if(rootentries.contains("archos.mod", Qt::CaseInsensitive))
            {
                // archos.mod in root folder -> Archos Player
                m_device = "player";
                m_mountpoint = mountpoints.at(i);
                return true;
            }
            if(rootentries.contains("ONDIOST.BIN"), Qt::CaseInsensitive)
            {
                // ONDIOST.BIN in root -> Ondio FM
                m_device = "ondiofm";
                m_mountpoint = mountpoints.at(i);
                return true;
            }
            if(rootentries.contains("ONDIOSP.BIN"), Qt::CaseInsensitive)
            {
                // ONDIOSP.BIN in root -> Ondio SP
                m_device = "ondiosp";
                m_mountpoint = mountpoints.at(i);
                return true;
            }
            if(rootentries.contains("ajbrec.ajz"), Qt::CaseInsensitive)
            {
                qDebug() << "it's an archos. further detection needed";
            }
            // detection based on player specific folders
            QStringList rootfolders = root.entryList(QDir::Dirs | QDir::NoDotAndDotDot);
            if(rootfolders.contains("GBSYSTEM"), Qt::CaseInsensitive)
            {
                // GBSYSTEM folder -> Gigabeat
                m_device = "gigabeatf";
                m_mountpoint = mountpoints.at(i);
                return true;
            }
            qDebug() << rootfolders;
        }

    }

    int n;
    //try ipodpatcher
    struct ipod_t ipod;
    n = ipod_scan(&ipod);
    if(n == 1) {
        qDebug() << "Ipod found:" << ipod.modelstr << "at" << ipod.diskname;
        m_device = ipod.targetname;
        m_mountpoint = resolveMountPoint(ipod.diskname);
        return true;
    }

    //try sansapatcher
    struct sansa_t sansa;
    n = sansa_scan(&sansa);
    if(n == 1) {
        qDebug() << "Sansa found:" << sansa.targetname << "at" << sansa.diskname;
        m_device = QString("sansa%1").arg(sansa.targetname);
        m_mountpoint = resolveMountPoint(sansa.diskname);
        return true;
    }

    if(m_mountpoint.isEmpty() && m_device.isEmpty() && m_errdev.isEmpty())
        return false;
    return true;
}


QStringList Autodetection::getMountpoints()
{
#if defined(Q_OS_WIN32)
    QStringList tempList;
    QFileInfoList list = QDir::drives();
    for(int i=0; i<list.size();i++)
    {
        tempList << list.at(i).absolutePath();
    }
    return tempList;

#elif defined(Q_OS_MACX)
    QDir dir("/Volumes");
    return dir.entryList();
#elif defined(Q_OS_LINUX)
    QStringList tempList;

    FILE *mn = setmntent("/etc/mtab", "r");
    if(!mn)
        return QStringList("");

    struct mntent *ent;
    while((ent = getmntent(mn)))
        tempList << QString(ent->mnt_dir);
    endmntent(mn);

    return tempList;
#else
#error Unknown Plattform
#endif
}

QString Autodetection::resolveMountPoint(QString device)
{
    qDebug() << "Autodetection::resolveMountPoint(QString)" << device;

#if defined(Q_OS_LINUX)
    FILE *mn = setmntent("/etc/mtab", "r");
    if(!mn)
        return QString("");

    struct mntent *ent;
    while((ent = getmntent(mn))) {
        if(QString(ent->mnt_fsname).startsWith(device)
           && QString(ent->mnt_type).contains("vfat", Qt::CaseInsensitive)) {
            endmntent(mn);
            return QString(ent->mnt_dir);
        }
    }
    endmntent(mn);

#endif
    return QString("");

}


/** @brief detect devices based on usb pid / vid.
 *  @return true upon success, false otherwise.
 */
bool Autodetection::detectUsb()
{
        // autodetection only uses the buildin device settings only
    QSettings dev(":/ini/rbutil.ini", QSettings::IniFormat, this);

    // get a list of ID -> target name
    QStringList platforms;
    dev.beginGroup("platforms");
    platforms = dev.childKeys();
    dev.endGroup();

    // usbids holds the mapping in the form
    // ((VID<<16)|(PID)), targetname
    // the ini file needs to hold the IDs as hex values.
    QMap<int, QString> usbids;
    QMap<int, QString> usberror;

    for(int i = 0; i < platforms.size(); i++) {
        dev.beginGroup("platforms");
        QString target = dev.value(platforms.at(i)).toString();
        dev.endGroup();
        dev.beginGroup(target);
        if(!dev.value("usbid").toString().isEmpty())
            usbids.insert(dev.value("usbid").toString().toInt(0, 16), target);
        if(!dev.value("usberror").toString().isEmpty())
            usberror.insert(dev.value("usberror").toString().toInt(0, 16), target);
        dev.endGroup();
    }

    // usb pid detection
#if defined(Q_OS_LINUX) | defined(Q_OS_MACX)
    usb_init();
    usb_find_busses();
    usb_find_devices();
    struct usb_bus *b;
    b = usb_get_busses();

    while(b) {
        qDebug() << "bus:" << b->dirname << b->devices;
        if(b->devices) {
            qDebug() << "devices present.";
            struct usb_device *u;
            u = b->devices;
            while(u) {
                uint32_t id;
                id = u->descriptor.idVendor << 16 | u->descriptor.idProduct;
                qDebug("%x", id);

                if(usbids.contains(id)) {
                    m_device = usbids.value(id);
                    return true;
                }
                if(usberror.contains(id)) {
                    m_errdev = usberror.value(id);
                    // we detected something, so return true
                    qDebug() << "detected device with problems via usb!";
                    return true;
                }
                u = u->next;
            }
        }
        b = b->next;
    }
#endif
    return false;
}