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path: root/libopie2/opiemm/osoundsystem.cpp
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1/*
2                 This file is part of the Opie Project
3
4              (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
5 =.
6 .=l.
7           .>+-=
8 _;:,     .>    :=|. This program is free software; you can
9.> <`_,   >  .   <= redistribute it and/or modify it under
10:`=1 )Y*s>-.--   : the terms of the GNU Library General Public
11.="- .-=="i,     .._ License as published by the Free Software
12 - .   .-<_>     .<> Foundation; either version 2 of the License,
13     ._= =}       : or (at your option) any later version.
14    .%`+i>       _;_.
15    .i_,=:_.      -<s. This program is distributed in the hope that
16     +  .  -:.       = it will be useful, but WITHOUT ANY WARRANTY;
17    : ..    .:,     . . . without even the implied warranty of
18    =_        +     =;=|` MERCHANTABILITY or FITNESS FOR A
19  _.=:.       :    :=>`: PARTICULAR PURPOSE. See the GNU
20..}^=.=       =       ; Library General Public License for more
21++=   -.     .`     .: details.
22 :     =  ...= . :.=-
23 -.   .:....=;==+<; You should have received a copy of the GNU
24  -_. . .   )=.  = Library General Public License along with
25    --        :-=` this library; see the file COPYING.LIB.
26 If not, write to the Free Software Foundation,
27 Inc., 59 Temple Place - Suite 330,
28 Boston, MA 02111-1307, USA.
29
30*/
31
32#include <opie2/osoundsystem.h>
33
34#include <errno.h>
35#include <fcntl.h>
36#include <string.h>
37#include <sys/ioctl.h>
38#include <sys/types.h>
39#include <sys/soundcard.h>
40#include <sys/stat.h>
41
42
43/*======================================================================================
44 * OSoundSystem
45 *======================================================================================*/
46
47OSoundSystem* OSoundSystem::_instance = 0;
48
49OSoundSystem::OSoundSystem()
50{
51 qDebug( "OSoundSystem::OSoundSystem()" );
52 synchronize();
53}
54
55void OSoundSystem::synchronize()
56{
57 // gather available interfaces by inspecting /dev
58 //FIXME: we could use SIOCGIFCONF here, but we aren't interested in virtual (e.g. eth0:0) devices
59 //FIXME: Use SIOCGIFCONF anway, because we can disable listing of aliased devices
60
61 _interfaces.clear();
62 _interfaces.insert( "soundcard", new OSoundCard( this, "soundcard" ) );
63
64
65 /*
66
67
68
69
70 QString str;
71 QFile f( "/dev/sound" );
72 bool hasFile = f.open( IO_ReadOnly );
73 if ( !hasFile )
74 {
75 qDebug( "OSoundSystem: /dev/sound not existing. No sound devices available" );
76 return;
77 }
78 QTextStream s( &f );
79 s.readLine();
80 s.readLine();
81 while ( !s.atEnd() )
82 {
83 s >> str;
84 str.truncate( str.find( ':' ) );
85 qDebug( "OSoundSystem: found interface '%s'", (const char*) str );
86 OAudioInterface* iface;
87 iface = new OAudioInterface( this, (const char*) str );
88
89 _interfaces.insert( str, iface );
90 s.readLine();
91 }
92*/
93}
94
95
96int OSoundSystem::count() const
97{
98 return _interfaces.count();
99}
100
101
102OSoundCard* OSoundSystem::card( const QString& iface ) const
103{
104 return _interfaces[iface];
105}
106
107
108OSoundSystem* OSoundSystem::instance()
109{
110 if ( !_instance ) _instance = new OSoundSystem();
111 return _instance;
112}
113
114
115OSoundSystem::CardIterator OSoundSystem::iterator() const
116{
117 return OSoundSystem::CardIterator( _interfaces );
118}
119
120
121/*======================================================================================
122 * OSoundCard
123 *======================================================================================*/
124
125OSoundCard::OSoundCard( QObject* parent, const char* name )
126 :QObject( parent, name ), _audio( 0 ), _mixer( 0 )
127{
128 qDebug( "OSoundCard::OSoundCard()" );
129 init();
130}
131
132
133OSoundCard::~OSoundCard()
134{
135}
136
137
138void OSoundCard::init()
139{
140 _audio = new OAudioInterface( this, "/dev/dsp" );
141 _mixer = new OMixerInterface( this, "/dev/mixer" );
142}
143
144
145/*======================================================================================
146 * OAudioInterface
147 *======================================================================================*/
148
149OAudioInterface::OAudioInterface( QObject* parent, const char* name )
150 :QObject( parent, name )
151{
152 qDebug( "OAudioInterface::OAudioInterface()" );
153 init();
154}
155
156
157OAudioInterface::~OAudioInterface()
158{
159}
160
161
162void OAudioInterface::init()
163{
164
165
166}
167
168
169/*======================================================================================
170 * OMixerInterface
171 *======================================================================================*/
172
173OMixerInterface::OMixerInterface( QObject* parent, const char* name )
174 :QObject( parent, name )
175{
176 qDebug( "OMixerInterface::OMixerInterface()" );
177 init();
178}
179
180
181OMixerInterface::~OMixerInterface()
182{
183}
184
185
186void OMixerInterface::init()
187{
188 // open the device
189 _fd = ::open( name(), O_RDWR );
190 if ( _fd == -1 )
191 {
192 qWarning( "can't open mixer." );
193 return;
194 }
195
196 // construct the device capabilities
197 int devmask = 0;
198 if ( ioctl( _fd, SOUND_MIXER_READ_DEVMASK, &devmask ) != -1 )
199 {
200 if ( devmask & ( 1 << SOUND_MIXER_VOLUME ) ) _channels.insert( "PlayVolume", SOUND_MIXER_VOLUME );
201 if ( devmask & ( 1 << SOUND_MIXER_BASS ) ) _channels.insert( "PlayBass", SOUND_MIXER_BASS );
202 if ( devmask & ( 1 << SOUND_MIXER_TREBLE ) ) _channels.insert( "PlayTreble", SOUND_MIXER_TREBLE );
203 if ( devmask & ( 1 << SOUND_MIXER_SYNTH ) ) _channels.insert( "PlaySynth", SOUND_MIXER_SYNTH );
204 if ( devmask & ( 1 << SOUND_MIXER_PCM ) ) _channels.insert( "PlayPCM", SOUND_MIXER_PCM );
205 if ( devmask & ( 1 << SOUND_MIXER_SPEAKER ) ) _channels.insert( "PlaySpeaker", SOUND_MIXER_SPEAKER );
206 if ( devmask & ( 1 << SOUND_MIXER_LINE ) ) _channels.insert( "PlayLine", SOUND_MIXER_LINE );
207 if ( devmask & ( 1 << SOUND_MIXER_MIC ) ) _channels.insert( "PlayMic", SOUND_MIXER_MIC );
208 if ( devmask & ( 1 << SOUND_MIXER_CD ) ) _channels.insert( "PlayCD", SOUND_MIXER_CD );
209 if ( devmask & ( 1 << SOUND_MIXER_IMIX ) ) _channels.insert( "PlayInputMix", SOUND_MIXER_IMIX );
210 if ( devmask & ( 1 << SOUND_MIXER_ALTPCM ) ) _channels.insert( "PlayAltPCM", SOUND_MIXER_ALTPCM );
211 if ( devmask & ( 1 << SOUND_MIXER_RECLEV ) ) _channels.insert( "PlayRecord", SOUND_MIXER_RECLEV );
212 if ( devmask & ( 1 << SOUND_MIXER_IGAIN ) ) _channels.insert( "PlayInputGain", SOUND_MIXER_IGAIN );
213 if ( devmask & ( 1 << SOUND_MIXER_OGAIN ) ) _channels.insert( "PlayOutputGain", SOUND_MIXER_OGAIN );
214 //qDebug( "devmask available and constructed." );
215 }
216
217 devmask = 0;
218 if ( ioctl( _fd, SOUND_MIXER_READ_RECMASK, &devmask ) != -1 )
219 {
220 if ( devmask & ( 1 << SOUND_MIXER_VOLUME ) ) _channels.insert( "RecVolume", SOUND_MIXER_VOLUME );
221 if ( devmask & ( 1 << SOUND_MIXER_BASS ) ) _channels.insert( "RecBass", SOUND_MIXER_BASS );
222 if ( devmask & ( 1 << SOUND_MIXER_TREBLE ) ) _channels.insert( "RecTreble", SOUND_MIXER_TREBLE );
223 if ( devmask & ( 1 << SOUND_MIXER_SYNTH ) ) _channels.insert( "RecSynth", SOUND_MIXER_SYNTH );
224 if ( devmask & ( 1 << SOUND_MIXER_PCM ) ) _channels.insert( "RecPCM", SOUND_MIXER_PCM );
225 if ( devmask & ( 1 << SOUND_MIXER_SPEAKER ) ) _channels.insert( "RecSpeaker", SOUND_MIXER_SPEAKER );
226 if ( devmask & ( 1 << SOUND_MIXER_LINE ) ) _channels.insert( "RecLine", SOUND_MIXER_LINE );
227 if ( devmask & ( 1 << SOUND_MIXER_MIC ) ) _channels.insert( "RecMic", SOUND_MIXER_MIC );
228 if ( devmask & ( 1 << SOUND_MIXER_CD ) ) _channels.insert( "RecCD", SOUND_MIXER_CD );
229 if ( devmask & ( 1 << SOUND_MIXER_IMIX ) ) _channels.insert( "RecInputMix", SOUND_MIXER_IMIX );
230 if ( devmask & ( 1 << SOUND_MIXER_ALTPCM ) ) _channels.insert( "RecAltPCM", SOUND_MIXER_ALTPCM );
231 if ( devmask & ( 1 << SOUND_MIXER_RECLEV ) ) _channels.insert( "RecRecord", SOUND_MIXER_RECLEV );
232 if ( devmask & ( 1 << SOUND_MIXER_IGAIN ) ) _channels.insert( "RecInputGain", SOUND_MIXER_IGAIN );
233 if ( devmask & ( 1 << SOUND_MIXER_OGAIN ) ) _channels.insert( "RecOutputGain", SOUND_MIXER_OGAIN );
234 //qDebug( "recmask available and constructed." );
235 }
236
237/* ChannelIterator it;
238 for ( it = _channels.begin(); it != _channels.end(); ++it )
239 {
240 qDebug( "Channel %s available (bit %d)", (const char*) it.key(), it.data() );
241 qDebug( " +--- Volume: %02d | %02d", volume( it.key() ) & 0xff, volume( it.key() ) >> 8 );
242 }
243*/
244}
245
246QStringList OMixerInterface::allChannels() const
247{
248 ChannelIterator it = _channels.begin();
249 QStringList channels;
250 while ( it != _channels.end() )
251 {
252 channels += it.key();
253 it++;
254 }
255 return channels;
256}
257
258
259QStringList OMixerInterface::recChannels() const
260{
261 qWarning( "NYI" );
262}
263
264
265QStringList OMixerInterface::playChannels() const
266{
267 qWarning( "NYI" );
268}
269
270
271bool OMixerInterface::hasChannel( const QString& channel )
272{
273 return _channels.contains( channel );
274}
275
276
277void OMixerInterface::setVolume( const QString& channel, int left, int right )
278{
279 int volume = left;
280 volume |= ( right == -1 ) ? left << 8 : right << 8;
281
282 if ( _channels.contains( channel ) )
283 {
284 int result = ioctl( _fd, MIXER_WRITE( _channels[channel] ), &volume );
285 if ( result == -1 )
286 {
287 qWarning( "Can't set volume: %s", strerror( errno ) );
288 }
289 else
290 {
291 if ( result & 0xff != left )
292 {
293 qWarning( "Device adjusted volume from %d to %d", left, result & 0xff );
294 }
295 }
296 }
297}
298
299
300int OMixerInterface::volume( const QString& channel ) const
301{
302 int volume;
303
304 if ( _channels.contains( channel ) )
305 {
306 if ( ioctl( _fd, MIXER_READ( _channels[channel] ), &volume ) == -1 )
307 {
308 qWarning( "Can't get volume: %s", strerror( errno ) );
309 }
310 else return volume;
311 }
312 return -1;
313}
314
315