root/trunk/libfreebob/src/devicemanager.cpp

/* devicemanager.cpp
 * Copyright (C) 2005,06 by Daniel Wagner
 *
 * This file is part of FreeBob.
 *
 * FreeBob 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; either version 2 of the License, or
 * (at your option) any later version.
 * FreeBob 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with FreeBob; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA.
 */

#include "fbtypes.h"

#include "devicemanager.h"
#include "iavdevice.h"
#include "configrom.h"

#include "libfreebobavc/ieee1394service.h"
#include "debugmodule/debugmodule.h"
#include "bebob/bebob_avdevice.h"
#include "bebob_light/bebob_light_avdevice.h"
#include "bounce/bounce_avdevice.h"

#include <iostream>

using namespace std;

IMPL_DEBUG_MODULE( DeviceManager, DeviceManager, DEBUG_LEVEL_NORMAL );

DeviceManager::DeviceManager()
    : m_1394Service( 0 )
{
    m_probeList.push_back( probeBeBoB );
    m_probeList.push_back( probeBounce );
}

DeviceManager::~DeviceManager()
{
    for ( IAvDeviceVectorIterator it = m_avDevices.begin();
          it != m_avDevices.end();
          ++it )
    {
        delete *it;
    }

    delete m_1394Service;
}

bool
DeviceManager::initialize( int port )
{
    m_1394Service = new Ieee1394Service();
    if ( !m_1394Service ) {
        debugFatal( "Could not create Ieee1349Service object\n" );
        return false;
    }

    if ( !m_1394Service->initialize( port ) ) {
        debugFatal( "Could not initialize Ieee1349Service object\n" );
        delete m_1394Service;
        m_1394Service = 0;
        return false;
    }

    return true;
}

bool
DeviceManager::discover( int verboseLevel )
{
    if ( verboseLevel ) {
        setDebugLevel( DEBUG_LEVEL_VERBOSE );
    }
    for ( IAvDeviceVectorIterator it = m_avDevices.begin();
          it != m_avDevices.end();
          ++it )
    {
        delete *it;
    }
    m_avDevices.clear();

    for ( fb_nodeid_t nodeId = 0;
          nodeId < m_1394Service->getNodeCount();
          ++nodeId )
    {
        ConfigRom configRom( m_1394Service, nodeId );
        if ( !configRom.initialize() ) {
            // \todo If a PHY on the bus in power safe mode than
            // the config rom is missing. So this might be just
            // such a case and we can safely skip it. But it might
            // be there is a real software problem on our side.
            // This should be handled more carefuly.
            debugOutput( DEBUG_LEVEL_NORMAL,
                         "Could not read config rom from device (noe id %d). "
                         "Skip device discovering for this node\n",
                         nodeId );
            continue;
        }

        if ( !configRom.isAvcDevice() ) {
            continue;
        }

        for ( ProbeFunctionVector::iterator it = m_probeList.begin();
              it != m_probeList.end();
              ++it )
        {
            ProbeFunction func = *it;
            IAvDevice* avDevice = func(*m_1394Service, nodeId, verboseLevel);
            if ( avDevice ) {
                m_avDevices.push_back( avDevice );
                if ( verboseLevel ) {
                    avDevice->showDevice();
                }
                break;
            }
        }

    }

    return true;
}


IAvDevice*
DeviceManager::probeBeBoB(Ieee1394Service& service, int id, int level)
{
    IAvDevice* avDevice = new BeBoB_Light::AvDevice( service, id, level );
    if ( !avDevice ) {
        return 0;
    }

    if ( !avDevice->discover() ) {
        delete avDevice;
        return 0;
    }
    return avDevice;
}

IAvDevice*
DeviceManager::probeBounce(Ieee1394Service& service, int id, int level)
{
    IAvDevice* avDevice = new Bounce::BounceDevice( service, id, level );
    if ( !avDevice ) {
        return 0;
    }

    if ( !avDevice->discover() ) {
        delete avDevice;
        return 0;
    }
    return avDevice;
}

bool
DeviceManager::isValidNode(int node)
{
    for ( IAvDeviceVectorIterator it = m_avDevices.begin();
          it != m_avDevices.end();
          ++it )
    {
        IAvDevice* avDevice = *it;

        if (avDevice->getConfigRom().getNodeId() == node) {
                return true;
        }
    }
    return false;
}

int
DeviceManager::getNbDevices()
{
    return m_avDevices.size();
}

int
DeviceManager::getDeviceNodeId( int deviceNr )
{
    if ( ! ( deviceNr < getNbDevices() ) ) {
        debugError( "Device number out of range (%d)\n", deviceNr );
        return -1;
    }

    IAvDevice* avDevice = m_avDevices.at( deviceNr );

    if ( !avDevice ) {
        debugError( "Could not get device at position (%d)\n",  deviceNr );
    }

    return avDevice->getConfigRom().getNodeId();
}

IAvDevice*
DeviceManager::getAvDevice( int nodeId )
{
    for ( IAvDeviceVectorIterator it = m_avDevices.begin();
          it != m_avDevices.end();
          ++it )
    {
        IAvDevice* avDevice = *it;
        if ( avDevice->getConfigRom().getNodeId() == nodeId ) {
            return avDevice;
        }
    }

    return 0;
}

xmlDocPtr
DeviceManager::getXmlDescription()
{
    xmlDocPtr doc = xmlNewDoc( BAD_CAST "1.0" );
    if ( !doc ) {
        debugError( "Couldn't create new xml doc\n" );
        return 0;
    }

    xmlNodePtr rootNode = xmlNewNode( 0,  BAD_CAST "FreeBobConnectionInfo" );
    if ( !rootNode ) {
        debugError( "Couldn't create root node\n" );
        xmlFreeDoc( doc );
        xmlCleanupParser();
        return 0;
    }
    xmlDocSetRootElement( doc, rootNode );

    for ( IAvDeviceVectorIterator it = m_avDevices.begin();
          it != m_avDevices.end();
          ++it )
    {
        IAvDevice* avDevice = *it;

        xmlNodePtr deviceNode = xmlNewChild( rootNode, 0,
                                             BAD_CAST "Device", 0 );
        if ( !deviceNode ) {
            debugError( "Couldn't create device node\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return 0;
        }

        char* result;
        asprintf( &result, "%d", avDevice->getConfigRom().getNodeId() );
        if ( !xmlNewChild( deviceNode,  0,
                           BAD_CAST "NodeId",  BAD_CAST result ) )
        {
            debugError( "Couldn't create 'NodeId' node" );
            return false;
        }

        std::string res = "Connection Information for "
                          + avDevice->getConfigRom().getVendorName()
                          +", "
                          + avDevice->getConfigRom().getModelName()
                          + " configuration";
        if ( !xmlNewChild( deviceNode,
                           0,
                           BAD_CAST "Comment",
                           BAD_CAST res.c_str() ) ) {
            debugError( "Couldn't create comment node\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return 0;
        }

        res = avDevice->getConfigRom().getVendorName();

        if ( !xmlNewChild( deviceNode,
                           0,
                           BAD_CAST "Vendor",
                           BAD_CAST res.c_str() ) ) {
            debugError( "Couldn't create vendor node\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return 0;
        }

        res = avDevice->getConfigRom().getModelName();

        if ( !xmlNewChild( deviceNode,
                           0,
                           BAD_CAST "Model",
                           BAD_CAST res.c_str() ) ) {
            debugError( "Couldn't create model node\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return 0;
        }

        asprintf( &result, "%08x%08x",
                  ( quadlet_t )( avDevice->getConfigRom().getGuid() >> 32 ),
                  ( quadlet_t )( avDevice->getConfigRom().getGuid() & 0xfffffff ) );
        if ( !xmlNewChild( deviceNode,  0,
                           BAD_CAST "GUID",  BAD_CAST result ) ) {
            debugError( "Couldn't create 'GUID' node\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return false;
        }

        if ( !avDevice->addXmlDescription( deviceNode ) ) {
            debugError( "Adding XML description failed\n" );
            xmlFreeDoc( doc );
            xmlCleanupParser();
            return 0;
        }
    }

    return doc;
}

bool
DeviceManager::deinitialize()
{
    return true;
}