Diffstat (limited to 'libopie2/opiemm/osoundsystem.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libopie2/opiemm/osoundsystem.cpp | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/libopie2/opiemm/osoundsystem.cpp b/libopie2/opiemm/osoundsystem.cpp new file mode 100644 index 0000000..fd23bea --- a/dev/null +++ b/libopie2/opiemm/osoundsystem.cpp @@ -0,0 +1,315 @@ +/* + This file is part of the Opie Project + + (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de> + =. + .=l. + .>+-= + _;:, .> :=|. This program is free software; you can +.> <`_, > . <= redistribute it and/or modify it under +:`=1 )Y*s>-.-- : the terms of the GNU Library General Public +.="- .-=="i, .._ License as published by the Free Software + - . .-<_> .<> Foundation; either version 2 of the License, + ._= =} : or (at your option) any later version. + .%`+i> _;_. + .i_,=:_. -<s. This program 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 +..}^=.= = ; Library General Public License for more +++= -. .` .: details. + : = ...= . :.=- + -. .:....=;==+<; You should have received a copy of the GNU + -_. . . )=. = Library General Public License along with + -- :-=` this library; see the file COPYING.LIB. + If not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + +*/ + +#include <opie2/osoundsystem.h> + +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/soundcard.h> +#include <sys/stat.h> + + +/*====================================================================================== + * OSoundSystem + *======================================================================================*/ + +OSoundSystem* OSoundSystem::_instance = 0; + +OSoundSystem::OSoundSystem() +{ + qDebug( "OSoundSystem::OSoundSystem()" ); + synchronize(); +} + +void OSoundSystem::synchronize() +{ + // gather available interfaces by inspecting /dev + //FIXME: we could use SIOCGIFCONF here, but we aren't interested in virtual (e.g. eth0:0) devices + //FIXME: Use SIOCGIFCONF anway, because we can disable listing of aliased devices + + _interfaces.clear(); + _interfaces.insert( "soundcard", new OSoundCard( this, "soundcard" ) ); + + + /* + + + + + QString str; + QFile f( "/dev/sound" ); + bool hasFile = f.open( IO_ReadOnly ); + if ( !hasFile ) + { + qDebug( "OSoundSystem: /dev/sound not existing. No sound devices available" ); + return; + } + QTextStream s( &f ); + s.readLine(); + s.readLine(); + while ( !s.atEnd() ) + { + s >> str; + str.truncate( str.find( ':' ) ); + qDebug( "OSoundSystem: found interface '%s'", (const char*) str ); + OAudioInterface* iface; + iface = new OAudioInterface( this, (const char*) str ); + + _interfaces.insert( str, iface ); + s.readLine(); + } +*/ +} + + +int OSoundSystem::count() const +{ + return _interfaces.count(); +} + + +OSoundCard* OSoundSystem::card( const QString& iface ) const +{ + return _interfaces[iface]; +} + + +OSoundSystem* OSoundSystem::instance() +{ + if ( !_instance ) _instance = new OSoundSystem(); + return _instance; +} + + +OSoundSystem::CardIterator OSoundSystem::iterator() const +{ + return OSoundSystem::CardIterator( _interfaces ); +} + + +/*====================================================================================== + * OSoundCard + *======================================================================================*/ + +OSoundCard::OSoundCard( QObject* parent, const char* name ) + :QObject( parent, name ), _audio( 0 ), _mixer( 0 ) +{ + qDebug( "OSoundCard::OSoundCard()" ); + init(); +} + + +OSoundCard::~OSoundCard() +{ +} + + +void OSoundCard::init() +{ + _audio = new OAudioInterface( this, "/dev/dsp" ); + _mixer = new OMixerInterface( this, "/dev/mixer" ); +} + + +/*====================================================================================== + * OAudioInterface + *======================================================================================*/ + +OAudioInterface::OAudioInterface( QObject* parent, const char* name ) + :QObject( parent, name ) +{ + qDebug( "OAudioInterface::OAudioInterface()" ); + init(); +} + + +OAudioInterface::~OAudioInterface() +{ +} + + +void OAudioInterface::init() +{ + + +} + + +/*====================================================================================== + * OMixerInterface + *======================================================================================*/ + +OMixerInterface::OMixerInterface( QObject* parent, const char* name ) + :QObject( parent, name ) +{ + qDebug( "OMixerInterface::OMixerInterface()" ); + init(); +} + + +OMixerInterface::~OMixerInterface() +{ +} + + +void OMixerInterface::init() +{ + // open the device + _fd = ::open( name(), O_RDWR ); + if ( _fd == -1 ) + { + qWarning( "can't open mixer." ); + return; + } + + // construct the device capabilities + int devmask = 0; + if ( ioctl( _fd, SOUND_MIXER_READ_DEVMASK, &devmask ) != -1 ) + { + if ( devmask & ( 1 << SOUND_MIXER_VOLUME ) ) _channels.insert( "PlayVolume", SOUND_MIXER_VOLUME ); + if ( devmask & ( 1 << SOUND_MIXER_BASS ) ) _channels.insert( "PlayBass", SOUND_MIXER_BASS ); + if ( devmask & ( 1 << SOUND_MIXER_TREBLE ) ) _channels.insert( "PlayTreble", SOUND_MIXER_TREBLE ); + if ( devmask & ( 1 << SOUND_MIXER_SYNTH ) ) _channels.insert( "PlaySynth", SOUND_MIXER_SYNTH ); + if ( devmask & ( 1 << SOUND_MIXER_PCM ) ) _channels.insert( "PlayPCM", SOUND_MIXER_PCM ); + if ( devmask & ( 1 << SOUND_MIXER_SPEAKER ) ) _channels.insert( "PlaySpeaker", SOUND_MIXER_SPEAKER ); + if ( devmask & ( 1 << SOUND_MIXER_LINE ) ) _channels.insert( "PlayLine", SOUND_MIXER_LINE ); + if ( devmask & ( 1 << SOUND_MIXER_MIC ) ) _channels.insert( "PlayMic", SOUND_MIXER_MIC ); + if ( devmask & ( 1 << SOUND_MIXER_CD ) ) _channels.insert( "PlayCD", SOUND_MIXER_CD ); + if ( devmask & ( 1 << SOUND_MIXER_IMIX ) ) _channels.insert( "PlayInputMix", SOUND_MIXER_IMIX ); + if ( devmask & ( 1 << SOUND_MIXER_ALTPCM ) ) _channels.insert( "PlayAltPCM", SOUND_MIXER_ALTPCM ); + if ( devmask & ( 1 << SOUND_MIXER_RECLEV ) ) _channels.insert( "PlayRecord", SOUND_MIXER_RECLEV ); + if ( devmask & ( 1 << SOUND_MIXER_IGAIN ) ) _channels.insert( "PlayInputGain", SOUND_MIXER_IGAIN ); + if ( devmask & ( 1 << SOUND_MIXER_OGAIN ) ) _channels.insert( "PlayOutputGain", SOUND_MIXER_OGAIN ); + //qDebug( "devmask available and constructed." ); + } + + devmask = 0; + if ( ioctl( _fd, SOUND_MIXER_READ_RECMASK, &devmask ) != -1 ) + { + if ( devmask & ( 1 << SOUND_MIXER_VOLUME ) ) _channels.insert( "RecVolume", SOUND_MIXER_VOLUME ); + if ( devmask & ( 1 << SOUND_MIXER_BASS ) ) _channels.insert( "RecBass", SOUND_MIXER_BASS ); + if ( devmask & ( 1 << SOUND_MIXER_TREBLE ) ) _channels.insert( "RecTreble", SOUND_MIXER_TREBLE ); + if ( devmask & ( 1 << SOUND_MIXER_SYNTH ) ) _channels.insert( "RecSynth", SOUND_MIXER_SYNTH ); + if ( devmask & ( 1 << SOUND_MIXER_PCM ) ) _channels.insert( "RecPCM", SOUND_MIXER_PCM ); + if ( devmask & ( 1 << SOUND_MIXER_SPEAKER ) ) _channels.insert( "RecSpeaker", SOUND_MIXER_SPEAKER ); + if ( devmask & ( 1 << SOUND_MIXER_LINE ) ) _channels.insert( "RecLine", SOUND_MIXER_LINE ); + if ( devmask & ( 1 << SOUND_MIXER_MIC ) ) _channels.insert( "RecMic", SOUND_MIXER_MIC ); + if ( devmask & ( 1 << SOUND_MIXER_CD ) ) _channels.insert( "RecCD", SOUND_MIXER_CD ); + if ( devmask & ( 1 << SOUND_MIXER_IMIX ) ) _channels.insert( "RecInputMix", SOUND_MIXER_IMIX ); + if ( devmask & ( 1 << SOUND_MIXER_ALTPCM ) ) _channels.insert( "RecAltPCM", SOUND_MIXER_ALTPCM ); + if ( devmask & ( 1 << SOUND_MIXER_RECLEV ) ) _channels.insert( "RecRecord", SOUND_MIXER_RECLEV ); + if ( devmask & ( 1 << SOUND_MIXER_IGAIN ) ) _channels.insert( "RecInputGain", SOUND_MIXER_IGAIN ); + if ( devmask & ( 1 << SOUND_MIXER_OGAIN ) ) _channels.insert( "RecOutputGain", SOUND_MIXER_OGAIN ); + //qDebug( "recmask available and constructed." ); + } + +/* ChannelIterator it; + for ( it = _channels.begin(); it != _channels.end(); ++it ) + { + qDebug( "Channel %s available (bit %d)", (const char*) it.key(), it.data() ); + qDebug( " +--- Volume: %02d | %02d", volume( it.key() ) & 0xff, volume( it.key() ) >> 8 ); + } +*/ +} + +QStringList OMixerInterface::allChannels() const +{ + ChannelIterator it = _channels.begin(); + QStringList channels; + while ( it != _channels.end() ) + { + channels += it.key(); + it++; + } + return channels; +} + + +QStringList OMixerInterface::recChannels() const +{ + qWarning( "NYI" ); +} + + +QStringList OMixerInterface::playChannels() const +{ + qWarning( "NYI" ); +} + + +bool OMixerInterface::hasChannel( const QString& channel ) +{ + return _channels.contains( channel ); +} + + +void OMixerInterface::setVolume( const QString& channel, int left, int right ) +{ + int volume = left; + volume |= ( right == -1 ) ? left << 8 : right << 8; + + if ( _channels.contains( channel ) ) + { + int result = ioctl( _fd, MIXER_WRITE( _channels[channel] ), &volume ); + if ( result == -1 ) + { + qWarning( "Can't set volume: %s", strerror( errno ) ); + } + else + { + if ( result & 0xff != left ) + { + qWarning( "Device adjusted volume from %d to %d", left, result & 0xff ); + } + } + } +} + + +int OMixerInterface::volume( const QString& channel ) const +{ + int volume; + + if ( _channels.contains( channel ) ) + { + if ( ioctl( _fd, MIXER_READ( _channels[channel] ), &volume ) == -1 ) + { + qWarning( "Can't get volume: %s", strerror( errno ) ); + } + else return volume; + } + return -1; +} + + |