rbutil/rbutilqt/base/bootloaderinstallmi4.cpp

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  *   Copyright (C) 2008 by Dominik Riebeling
  10  *   $Id$
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 #include <QtCore>
  21 #include <QtDebug>
  22 #include <QtDebug>
  23 #include "bootloaderinstallmi4.h"
  24 #include "utils.h"
  25
  26 BootloaderInstallMi4::BootloaderInstallMi4(QObject *parent)
  27         : BootloaderInstallBase(parent)
  28 {
  29 }
  30
  31
  32 bool BootloaderInstallMi4::install(void)
  33 {
  34     emit logItem(tr("Downloading bootloader"), LOGINFO);
  35     qDebug() << "[BootloaderInstallMi4] installing bootloader";
  36     downloadBlStart(m_blurl);
  37     connect(this, SIGNAL(downloadDone()), this, SLOT(installStage2()));
  38     return true;
  39 }
  40
  41 void BootloaderInstallMi4::installStage2(void)
  42 {
  43     emit logItem(tr("Installing Rockbox bootloader"), LOGINFO);
  44     QCoreApplication::processEvents();
  45
  46     // move old bootloader out of the way
  47     QString fwfile(resolvePathCase(m_blfile));
  48     QFile oldbl(fwfile);
  49     QString moved = QFileInfo(resolvePathCase(m_blfile)).absolutePath()
  50                         + "/OF.mi4";
  51     if(!QFileInfo(moved).exists()) {
  52         qDebug() << "[BootloaderInstallMi4] renaming" << fwfile << "to" << moved;
  53         oldbl.rename(moved);
  54     }
  55     else {
  56         qDebug() << "[BootloaderInstallMi4] OF.mi4 already present, not renaming again.";
  57         oldbl.remove();
  58     }
  59
  60     // place new bootloader
  61     m_tempfile.open();
  62     qDebug() << "[BootloaderInstallMi4] renaming" << m_tempfile.fileName() << "to" << fwfile;
  63     m_tempfile.close();
  64     m_tempfile.rename(fwfile);
  65
  66     emit logItem(tr("Bootloader successful installed"), LOGOK);
  67     logInstall(LogAdd);
  68
  69     emit done(false);
  70 }
  71
  72
  73 bool BootloaderInstallMi4::uninstall(void)
  74 {
  75     qDebug() << "[BootloaderInstallMi4] Uninstalling bootloader";
  76
  77     // check if it's actually a Rockbox bootloader
  78     emit logItem(tr("Checking for Rockbox bootloader"), LOGINFO);
  79     if(installed() != BootloaderRockbox) {
  80         emit logItem(tr("No Rockbox bootloader found"), LOGERROR);
  81         return false;
  82     }
  83
  84     // check if OF file present
  85     emit logItem(tr("Checking for original firmware file"), LOGINFO);
  86     QString original = QFileInfo(resolvePathCase(m_blfile)).absolutePath()
  87                         + "/OF.mi4";
  88
  89     if(resolvePathCase(original).isEmpty()) {
  90         emit logItem(tr("Error finding original firmware file"), LOGERROR);
  91         return false;
  92     }
  93
  94     // finally remove RB bootloader
  95     QString resolved = resolvePathCase(m_blfile);
  96     QFile blfile(resolved);
  97     blfile.remove();
  98
  99     QFile oldbl(resolvePathCase(original));
 100     oldbl.rename(m_blfile);
 101     emit logItem(tr("Rockbox bootloader successful removed"), LOGINFO);
 102     logInstall(LogRemove);
 103     emit done(false);
 104
 105     return true;
 106 }
 107
 108
 109 //! check if a bootloader is installed and return its state.
 110 BootloaderInstallBase::BootloaderType BootloaderInstallMi4::installed(void)
 111 {
 112     // for MI4 files we can check if we actually have a RB bootloader
 113     // installed.
 114     // RB bootloader has "RBBL" at 0x1f8 in the mi4 file.
 115
 116     // make sure to resolve case to prevent case issues
 117     QString resolved;
 118     resolved = resolvePathCase(m_blfile);
 119     if(resolved.isEmpty()) {
 120         qDebug() << "[BootloaderInstallMi4] installed: BootloaderNone";
 121         return BootloaderNone;
 122     }
 123
 124     QFile f(resolved);
 125     f.open(QIODevice::ReadOnly);
 126     f.seek(0x1f8);
 127     char magic[4];
 128     f.read(magic, 4);
 129     f.close();
 130
 131     if(!memcmp(magic, "RBBL", 4)) {
 132         qDebug() << "[BootloaderInstallMi4] installed: BootloaderRockbox";
 133         return BootloaderRockbox;
 134     }
 135     else {
 136         qDebug() << "[BootloaderInstallMi4] installed: BootloaderOther";
 137         return BootloaderOther;
 138     }
 139 }
 140
 141
 142 BootloaderInstallBase::Capabilities BootloaderInstallMi4::capabilities(void)
 143 {
 144     qDebug() << "[BootloaderInstallMi4] getting capabilities";
 145     return Install | Uninstall | Backup | IsFile | CanCheckInstalled | CanCheckVersion;
 146 }
 147