//============================================================================== static AlsaPort iterateMidiClient (const AlsaClient::Ptr& seq, snd_seq_client_info_t* clientInfo, const bool forInput, StringArray& deviceNamesFound, const int deviceIndexToOpen) { AlsaPort port; snd_seq_t* seqHandle = seq->get(); snd_seq_port_info_t* portInfo = nullptr; if (snd_seq_port_info_malloc (&portInfo) == 0) { int numPorts = snd_seq_client_info_get_num_ports (clientInfo); const int client = snd_seq_client_info_get_client (clientInfo); snd_seq_port_info_set_client (portInfo, client); snd_seq_port_info_set_port (portInfo, -1); while (--numPorts >= 0) { if (snd_seq_query_next_port (seqHandle, portInfo) == 0 && (snd_seq_port_info_get_capability (portInfo) & (forInput ? SND_SEQ_PORT_CAP_READ : SND_SEQ_PORT_CAP_WRITE)) != 0) { deviceNamesFound.add (snd_seq_client_info_get_name (clientInfo)); if (deviceNamesFound.size() == deviceIndexToOpen + 1) { const int sourcePort = snd_seq_port_info_get_port (portInfo); const int sourceClient = snd_seq_client_info_get_client (clientInfo); if (sourcePort != -1) { const String name (forInput ? JUCE_ALSA_MIDI_INPUT_NAME : JUCE_ALSA_MIDI_OUTPUT_NAME); seq->setName (name); port.createPort (seq, name, forInput); port.connectWith (sourceClient, sourcePort); } } } } snd_seq_port_info_free (portInfo); } return port; }
static int check_permission(snd_seq_port_info_t *pinfo, int perm) { if (perm) { if (perm & LIST_INPUT) { if (perm_ok(pinfo, SND_SEQ_PORT_CAP_READ|SND_SEQ_PORT_CAP_SUBS_READ)) goto __ok; } if (perm & LIST_OUTPUT) { if (perm_ok(pinfo, SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE)) goto __ok; } return 0; } __ok: if (snd_seq_port_info_get_capability(pinfo) & SND_SEQ_PORT_CAP_NO_EXPORT) return 0; return 1; }
QStringList qxgeditMidiDevice::deviceList ( bool bReadable ) const { QStringList list; if (m_pAlsaSeq == NULL) return list; unsigned int uiPortFlags; if (bReadable) uiPortFlags = SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ; else uiPortFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE; snd_seq_client_info_t *pClientInfo; snd_seq_port_info_t *pPortInfo; snd_seq_client_info_alloca(&pClientInfo); snd_seq_port_info_alloca(&pPortInfo); snd_seq_client_info_set_client(pClientInfo, -1); while (snd_seq_query_next_client(m_pAlsaSeq, pClientInfo) >= 0) { int iAlsaClient = snd_seq_client_info_get_client(pClientInfo); if (iAlsaClient > 0 && iAlsaClient != m_iAlsaClient) { snd_seq_port_info_set_client(pPortInfo, iAlsaClient); snd_seq_port_info_set_port(pPortInfo, -1); while (snd_seq_query_next_port(m_pAlsaSeq, pPortInfo) >= 0) { unsigned int uiPortCapability = snd_seq_port_info_get_capability(pPortInfo); if (((uiPortCapability & uiPortFlags) == uiPortFlags) && ((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) { int iAlsaPort = snd_seq_port_info_get_port(pPortInfo); QString sItem = QString::number(iAlsaClient) + ':'; sItem += snd_seq_client_info_get_name(pClientInfo); sItem += c_pszItemSep; sItem += QString::number(iAlsaPort) + ':'; sItem += snd_seq_port_info_get_name(pPortInfo); list.append(sItem); } } } } return list; }
/* discover the sequencer devices currently available */ static int alsa_sequencer_list(ClientData clientData, Tcl_Interp *interp) { snd_seq_client_info_t *cinfo; snd_seq_port_info_t *pinfo; Tcl_Obj *result = Tcl_NewListObj(0, NULL); if (init_seq(clientData, interp) != TCL_OK) { return TCL_ERROR; } snd_seq_client_info_alloca(&cinfo); snd_seq_port_info_alloca(&pinfo); snd_seq_client_info_set_client(cinfo, -1); while (snd_seq_query_next_client(seq, cinfo) >= 0) { int client = snd_seq_client_info_get_client(cinfo); snd_seq_port_info_set_client(pinfo, client); snd_seq_port_info_set_port(pinfo, -1); while (snd_seq_query_next_port(seq, pinfo) >= 0) { /* we need both READ and SUBS_READ */ int capability = snd_seq_port_info_get_capability(pinfo); char *readable = ((capability & (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) == (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) ? "r" : ""; char *writable = ((capability & (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) == (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) ? "w" : ""; Tcl_Obj *element = Tcl_ObjPrintf("%3d:%-3d %-32.32s %s %s%s", snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), readable, writable); Tcl_ListObjAppendElement(interp, result, element); } } Tcl_SetObjResult(interp, result); return TCL_OK; }
void mastermidibus::port_start( int a_client, int a_port ) { lock(); /* client info */ snd_seq_client_info_t *cinfo; snd_seq_client_info_alloca(&cinfo); snd_seq_get_any_client_info( m_alsa_seq, a_client, cinfo ); /* port info */ snd_seq_port_info_t *pinfo; /* fill pinfo */ snd_seq_port_info_alloca(&pinfo); snd_seq_get_any_port_info( m_alsa_seq, a_client, a_port, pinfo ); /* get its capability */ int cap = snd_seq_port_info_get_capability(pinfo); if ( snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){ /* the outs */ if ( (cap & (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE )) == (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE ) && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){ bool replacement = false; int bus_slot = m_num_out_buses; for( int i=0; i< m_num_out_buses; i++ ){ if( m_buses_out[i]->get_client() == a_client && m_buses_out[i]->get_port() == a_port && m_buses_out_active[i] == false ){ replacement = true; bus_slot = i; } } m_buses_out[bus_slot] = new midibus( snd_seq_client_id( m_alsa_seq ), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); m_buses_out[bus_slot]->init_out(); m_buses_out_active[bus_slot] = true; m_buses_out_init[bus_slot] = true; if ( !replacement ){ m_num_out_buses++; } } /* the ins */ if ( (cap & (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ )) == (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ ) && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){ bool replacement = false; int bus_slot = m_num_in_buses; for( int i=0; i< m_num_in_buses; i++ ){ if( m_buses_in[i]->get_client() == a_client && m_buses_in[i]->get_port() == a_port && m_buses_in_active[i] == false ){ replacement = true; bus_slot = i; } } //printf( "in [%d] [%d]\n", replacement, bus_slot ); m_buses_in[bus_slot] = new midibus( snd_seq_client_id( m_alsa_seq ), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue); //m_buses_in[bus_slot]->init_in(); m_buses_in_active[bus_slot] = true; m_buses_in_init[bus_slot] = true; if ( !replacement ){ m_num_in_buses++; } } } /* end loop for clients */ /* midi input */ /* poll descriptors */ /* get number of file descriptors */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); /* allocate into */ m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* get descriptors */ snd_seq_poll_descriptors(m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN); unlock(); }
void mastermidibus::init( ) { /* client info */ snd_seq_client_info_t *cinfo; /* port info */ snd_seq_port_info_t *pinfo; int client; snd_seq_client_info_alloca(&cinfo); snd_seq_client_info_set_client(cinfo, -1); //printf( "global_ports %d\n", global_manual_alsa_ports ); if ( global_manual_alsa_ports ) { int num_buses = 16; for( int i=0; i<num_buses; ++i ) { m_buses_out[i] = new midibus( snd_seq_client_id( m_alsa_seq ), m_alsa_seq, i+1, m_queue ); m_buses_out[i]->init_out_sub(); m_buses_out_active[i] = true; m_buses_out_init[i] = true; } m_num_out_buses = num_buses; /* only one in */ m_buses_in[0] = new midibus( snd_seq_client_id( m_alsa_seq ), m_alsa_seq, m_num_in_buses, m_queue); m_buses_in[0]->init_in_sub(); m_buses_in_active[0] = true; m_buses_in_init[0] = true; m_num_in_buses = 1; } else { /* while the next client one the sequencer is avaiable */ while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0){ /* get client from cinfo */ client = snd_seq_client_info_get_client(cinfo); /* fill pinfo */ snd_seq_port_info_alloca(&pinfo); snd_seq_port_info_set_client(pinfo, client); snd_seq_port_info_set_port(pinfo, -1); /* while the next port is avail */ while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0 ){ /* get its capability */ int cap = snd_seq_port_info_get_capability(pinfo); if ( snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo) && snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM){ /* the outs */ if ( (cap & SND_SEQ_PORT_CAP_SUBS_WRITE) != 0 && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){ m_buses_out[m_num_out_buses] = new midibus( snd_seq_client_id( m_alsa_seq ), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); if ( m_buses_out[m_num_out_buses]->init_out() ){ m_buses_out_active[m_num_out_buses] = true; m_buses_out_init[m_num_out_buses] = true; } else { m_buses_out_init[m_num_out_buses] = true; } m_num_out_buses++; } /* the ins */ if ( (cap & SND_SEQ_PORT_CAP_SUBS_READ) != 0 && snd_seq_client_id( m_alsa_seq ) != snd_seq_port_info_get_client(pinfo)){ m_buses_in[m_num_in_buses] = new midibus( snd_seq_client_id( m_alsa_seq ), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue); //if ( m_buses_in[m_num_in_buses]->init_in() ){ m_buses_in_active[m_num_in_buses] = true; m_buses_in_init[m_num_in_buses] = true; //} else { //m_buses_in_init[m_num_in_buses] = true; //} m_num_in_buses++; } } } } /* end loop for clients */ } set_bpm( c_bpm ); set_ppqn( c_ppqn ); /* midi input */ /* poll descriptors */ /* get number of file descriptors */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); /* allocate into */ m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* get descriptors */ snd_seq_poll_descriptors(m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN); set_sequence_input( false, NULL ); /* sizes */ snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size ); snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size ); m_bus_announce = new midibus( snd_seq_client_id( m_alsa_seq ), SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_ANNOUNCE, m_alsa_seq, "system","annouce", 0, m_queue); m_bus_announce->set_input(true); for ( int i=0; i<m_num_out_buses; i++ ) set_clock(i,m_init_clock[i]); for ( int i=0; i<m_num_in_buses; i++ ) set_input(i,m_init_input[i]); }
//============================================================================== static snd_seq_t* iterateDevices (const bool forInput, StringArray& deviceNamesFound, const int deviceIndexToOpen) { snd_seq_t* returnedHandle = 0; snd_seq_t* seqHandle; if (snd_seq_open (&seqHandle, "default", forInput ? SND_SEQ_OPEN_INPUT : SND_SEQ_OPEN_OUTPUT, 0) == 0) { snd_seq_system_info_t* systemInfo; snd_seq_client_info_t* clientInfo; if (snd_seq_system_info_malloc (&systemInfo) == 0) { if (snd_seq_system_info (seqHandle, systemInfo) == 0 && snd_seq_client_info_malloc (&clientInfo) == 0) { int numClients = snd_seq_system_info_get_cur_clients (systemInfo); while (--numClients >= 0 && returnedHandle == 0) { if (snd_seq_query_next_client (seqHandle, clientInfo) == 0) { snd_seq_port_info_t* portInfo; if (snd_seq_port_info_malloc (&portInfo) == 0) { int numPorts = snd_seq_client_info_get_num_ports (clientInfo); const int client = snd_seq_client_info_get_client (clientInfo); snd_seq_port_info_set_client (portInfo, client); snd_seq_port_info_set_port (portInfo, -1); while (--numPorts >= 0) { if (snd_seq_query_next_port (seqHandle, portInfo) == 0 && (snd_seq_port_info_get_capability (portInfo) & (forInput ? SND_SEQ_PORT_CAP_READ : SND_SEQ_PORT_CAP_WRITE)) != 0) { deviceNamesFound.add (snd_seq_client_info_get_name (clientInfo)); if (deviceNamesFound.size() == deviceIndexToOpen + 1) { const int sourcePort = snd_seq_port_info_get_port (portInfo); const int sourceClient = snd_seq_client_info_get_client (clientInfo); if (sourcePort != -1) { snd_seq_set_client_name (seqHandle, forInput ? "Juce Midi Input" : "Juce Midi Output"); const int portId = snd_seq_create_simple_port (seqHandle, forInput ? "Juce Midi In Port" : "Juce Midi Out Port", forInput ? (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE) : (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ), SND_SEQ_PORT_TYPE_MIDI_GENERIC); snd_seq_connect_from (seqHandle, portId, sourceClient, sourcePort); returnedHandle = seqHandle; } } } } snd_seq_port_info_free (portInfo); } } } snd_seq_client_info_free (clientInfo); } snd_seq_system_info_free (systemInfo); } if (returnedHandle == 0) snd_seq_close (seqHandle); } deviceNamesFound.appendNumbersToDuplicates (true, true); return returnedHandle; }
// MIDI Input(readable) / Output(writable) device connects. bool qxgeditMidiDevice::connectDeviceList ( bool bReadable, const QStringList& list ) const { if (m_pAlsaSeq == NULL) return false; if (list.isEmpty()) return false; snd_seq_addr_t seq_addr; snd_seq_port_subscribe_t *pPortSubs; snd_seq_port_subscribe_alloca(&pPortSubs); snd_seq_client_info_t *pClientInfo; snd_seq_port_info_t *pPortInfo; snd_seq_client_info_alloca(&pClientInfo); snd_seq_port_info_alloca(&pPortInfo); unsigned int uiPortFlags; if (bReadable) uiPortFlags = SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ; else uiPortFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE; int iConnects = 0; while (snd_seq_query_next_client(m_pAlsaSeq, pClientInfo) >= 0) { int iAlsaClient = snd_seq_client_info_get_client(pClientInfo); if (iAlsaClient > 0 && iAlsaClient != m_iAlsaClient) { QString sClientName = snd_seq_client_info_get_name(pClientInfo); snd_seq_port_info_set_client(pPortInfo, iAlsaClient); snd_seq_port_info_set_port(pPortInfo, -1); while (snd_seq_query_next_port(m_pAlsaSeq, pPortInfo) >= 0) { unsigned int uiPortCapability = snd_seq_port_info_get_capability(pPortInfo); if (((uiPortCapability & uiPortFlags) == uiPortFlags) && ((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) { int iAlsaPort = snd_seq_port_info_get_port(pPortInfo); QString sPortName = snd_seq_port_info_get_name(pPortInfo); QStringListIterator iter(list); while (iter.hasNext()) { const QString& sItem = iter.next(); const QString& sClientItem = sItem.section(c_pszItemSep, 0, 0); const QString& sPortItem = sItem.section(c_pszItemSep, 1, 1); if (sClientName != sClientItem.section(':', 1, 1)) continue; if (sPortName != sPortItem .section(':', 1, 1)) continue; if (bReadable) { seq_addr.client = iAlsaClient; seq_addr.port = iAlsaPort; snd_seq_port_subscribe_set_sender(pPortSubs, &seq_addr); seq_addr.client = m_iAlsaClient; seq_addr.port = m_iAlsaPort; snd_seq_port_subscribe_set_dest(pPortSubs, &seq_addr); } else { seq_addr.client = m_iAlsaClient; seq_addr.port = m_iAlsaPort; snd_seq_port_subscribe_set_sender(pPortSubs, &seq_addr); seq_addr.client = iAlsaClient; seq_addr.port = iAlsaPort; snd_seq_port_subscribe_set_dest(pPortSubs, &seq_addr); } if (snd_seq_subscribe_port(m_pAlsaSeq, pPortSubs) == 0) iConnects++; } } } } } return (iConnects > 0); }
void MidiAlsaSeq::updatePortList() { QStringList readablePorts; QStringList writablePorts; // get input- and output-ports snd_seq_client_info_t * cinfo; snd_seq_port_info_t * pinfo; snd_seq_client_info_malloc( &cinfo ); snd_seq_port_info_malloc( &pinfo ); snd_seq_client_info_set_client( cinfo, -1 ); m_seqMutex.lock(); while( snd_seq_query_next_client( m_seqHandle, cinfo ) >= 0 ) { int client = snd_seq_client_info_get_client( cinfo ); snd_seq_port_info_set_client( pinfo, client ); snd_seq_port_info_set_port( pinfo, -1 ); while( snd_seq_query_next_port( m_seqHandle, pinfo ) >= 0 ) { // we need both READ and SUBS_READ if( ( snd_seq_port_info_get_capability( pinfo ) & ( SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ ) ) == ( SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ ) ) { readablePorts.push_back( __portName( cinfo, pinfo ) ); } if( ( snd_seq_port_info_get_capability( pinfo ) & ( SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE ) ) == ( SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE ) ) { writablePorts.push_back( __portName( cinfo, pinfo ) ); } } } m_seqMutex.unlock(); snd_seq_client_info_free( cinfo ); snd_seq_port_info_free( pinfo ); if( m_readablePorts != readablePorts ) { m_readablePorts = readablePorts; emit readablePortsChanged(); } if( m_writablePorts != writablePorts ) { m_writablePorts = writablePorts; emit writablePortsChanged(); } }
static int midi_hardware_refresh(MidiHardware *midi_hardware) { MidiDevicesInfo *info = create_zero<MidiDevicesInfo>(); if (!info) { destroy_devices_info(info); return GenesisErrorNoMem; } info->devices.clear(); info->default_device_index = -1; // don't default to MIDI through except as a last resort bool default_is_midi_through = false; snd_seq_client_info_set_client(midi_hardware->client_info, -1); while (snd_seq_query_next_client(midi_hardware->seq, midi_hardware->client_info) >= 0) { int client = snd_seq_client_info_get_client(midi_hardware->client_info); snd_seq_port_info_set_client(midi_hardware->port_info, client); snd_seq_port_info_set_port(midi_hardware->port_info, -1); while (snd_seq_query_next_port(midi_hardware->seq, midi_hardware->port_info) >= 0) { if ((snd_seq_port_info_get_capability(midi_hardware->port_info) & (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) != (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ)) { continue; } GenesisMidiDevice *device = create_zero<GenesisMidiDevice>(); if (!device) { genesis_midi_device_unref(device); return GenesisErrorNoMem; } device->midi_hardware = midi_hardware; device->ref_count = 1; device->set_index = -1; device->client_id = snd_seq_port_info_get_client(midi_hardware->port_info); device->port_id = snd_seq_port_info_get_port(midi_hardware->port_info); device->client_name = strdup(snd_seq_client_info_get_name(midi_hardware->client_info)); device->port_name = strdup(snd_seq_port_info_get_name(midi_hardware->port_info)); if (!device->client_name || !device->port_name) { genesis_midi_device_unref(device); return GenesisErrorNoMem; } if (strcmp(device->client_name, "System") == 0 && strcmp(device->port_name, "Timer") == 0) { genesis_midi_device_unref(midi_hardware->system_timer_device); midi_hardware->system_timer_device = device; } else if (strcmp(device->client_name, "System") == 0 && strcmp(device->port_name, "Announce") == 0) { genesis_midi_device_unref(midi_hardware->system_announce_device); midi_hardware->system_announce_device = device; } else { if (info->default_device_index == -1 || default_is_midi_through) { info->default_device_index = info->devices.length(); default_is_midi_through = strcmp(device->client_name, "Midi Through") == 0; } int err = info->devices.append(device); if (err) { genesis_midi_device_unref(device); return GenesisErrorNoMem; } } } } os_mutex_lock(midi_hardware->mutex); MidiDevicesInfo *old_devices_info = midi_hardware->ready_devices_info; midi_hardware->ready_devices_info = info; os_mutex_unlock(midi_hardware->mutex); destroy_devices_info(old_devices_info); midi_hardware->events_signal(midi_hardware); return 0; }
void mastermidibus::init (int ppqn) { #ifdef SEQ64_HAVE_LIBASOUND snd_seq_client_info_t * cinfo; /* client info */ snd_seq_port_info_t * pinfo; /* port info */ snd_seq_client_info_alloca(&cinfo); snd_seq_client_info_set_client(cinfo, -1); if (rc().manual_alsa_ports()) { /* * Output busses */ int num_buses = SEQ64_ALSA_OUTPUT_BUSS_MAX; for (int i = 0; i < num_buses; ++i) { if (not_nullptr(m_buses_out[i])) { delete m_buses_out[i]; errprintf("mmbus::init() manual: m_buses_out[%d] not null\n", i); } m_buses_out[i] = new midibus ( snd_seq_client_id(m_alsa_seq), m_alsa_seq, i+1, m_queue ); m_buses_out[i]->init_out_sub(); m_buses_out_active[i] = m_buses_out_init[i] = true; } m_num_out_buses = num_buses; if (not_nullptr(m_buses_in[0])) { delete m_buses_in[0]; errprint("mmbus::init() manual: m_buses_[0] not null"); } /* * Input buss. Only the first element is set up. The rest are used * only for non-manual ALSA ports in the else-class below. */ m_num_in_buses = 1; m_buses_in[0] = new midibus ( snd_seq_client_id(m_alsa_seq), m_alsa_seq, m_num_in_buses, m_queue ); m_buses_in[0]->init_in_sub(); m_buses_in_active[0] = m_buses_in_init[0] = true; } else { /* * While the next client for the sequencer is available, get the client * from cinfo. Fill pinfo. */ while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0) { int client = snd_seq_client_info_get_client(cinfo); snd_seq_port_info_alloca(&pinfo); /* will fill pinfo */ snd_seq_port_info_set_client(pinfo, client); snd_seq_port_info_set_port(pinfo, -1); while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0) { /* * While the next port is available, get its capability. */ int cap = snd_seq_port_info_get_capability(pinfo); if ( ALSA_CLIENT_CHECK(pinfo) && snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM ) { /* * Output busses: * * Why are we doing the ALSA client check again here? * Because it could be altered in the if-clause above. */ if (CAP_WRITE(cap) && ALSA_CLIENT_CHECK(pinfo)) { if (not_nullptr(m_buses_out[m_num_out_buses])) { delete m_buses_out[m_num_out_buses]; errprintf ( "mmbus::init(): m_buses_out[%d] not null\n", m_num_out_buses ); } m_buses_out[m_num_out_buses] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); if (m_buses_out[m_num_out_buses]->init_out()) { m_buses_out_active[m_num_out_buses] = true; m_buses_out_init[m_num_out_buses] = true; } else m_buses_out_init[m_num_out_buses] = true; ++m_num_out_buses; } /* * Input busses */ if (CAP_READ(cap) && ALSA_CLIENT_CHECK(pinfo)) /* inputs */ { if (not_nullptr(m_buses_in[m_num_in_buses])) { delete m_buses_in[m_num_in_buses]; errprintf ( "mmbus::init(): m_buses_in[%d] not null\n", m_num_in_buses ); } m_buses_in[m_num_in_buses] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue ); m_buses_in_active[m_num_in_buses] = m_buses_in_init[m_num_in_buses] = true; ++m_num_in_buses; } } } } /* end loop for clients */ } set_beats_per_minute(m_beats_per_minute); set_ppqn(ppqn); /* * Get the number of MIDI input poll file descriptors. Allocate the * poll-descriptors array. Then get the input poll-descriptors into the * array */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); m_poll_descriptors = new pollfd[m_num_poll_descriptors]; snd_seq_poll_descriptors ( m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN ); set_sequence_input(false, nullptr); /* Set the input and output buffer sizes */ snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size); snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size); m_bus_announce = new midibus ( snd_seq_client_id(m_alsa_seq), SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_ANNOUNCE, m_alsa_seq, "system", "announce", // was "annouce" ca 2016-04-03 0, m_queue ); m_bus_announce->set_input(true); for (int i = 0; i < m_num_out_buses; ++i) set_clock(i, m_init_clock[i]); for (int i = 0; i < m_num_in_buses; ++i) set_input(i, m_init_input[i]); #endif // SEQ64_HAVE_LIBASOUND }
void mastermidibus::port_start (int client, int port) { #ifdef SEQ64_HAVE_LIBASOUND automutex locker(m_mutex); snd_seq_client_info_t * cinfo; /* client info */ snd_seq_client_info_alloca(&cinfo); snd_seq_get_any_client_info(m_alsa_seq, client, cinfo); snd_seq_port_info_t * pinfo; /* port info */ snd_seq_port_info_alloca(&pinfo); snd_seq_get_any_port_info(m_alsa_seq, client, port, pinfo); int cap = snd_seq_port_info_get_capability(pinfo); /* get its capability */ if (ALSA_CLIENT_CHECK(pinfo)) { if (CAP_FULL_WRITE(cap) && ALSA_CLIENT_CHECK(pinfo)) /* outputs */ { bool replacement = false; int bus_slot = m_num_out_buses; for (int i = 0; i < m_num_out_buses; ++i) { if ( m_buses_out[i]->get_client() == client && m_buses_out[i]->get_port() == port && ! m_buses_out_active[i] ) { replacement = true; bus_slot = i; } } if (not_nullptr(m_buses_out[bus_slot])) { delete m_buses_out[bus_slot]; errprintf ( "mastermidibus::port_start(): m_buses_out[%d] not null\n", bus_slot ); } m_buses_out[bus_slot] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); m_buses_out[bus_slot]->init_out(); m_buses_out_active[bus_slot] = true; m_buses_out_init[bus_slot] = true; if (! replacement) ++m_num_out_buses; } if (CAP_FULL_READ(cap) && ALSA_CLIENT_CHECK(pinfo)) /* inputs */ { bool replacement = false; int bus_slot = m_num_in_buses; for (int i = 0; i < m_num_in_buses; ++i) { if ( m_buses_in[i]->get_client() == client && m_buses_in[i]->get_port() == port && ! m_buses_in_active[i] ) { replacement = true; bus_slot = i; } } if (not_nullptr(m_buses_in[bus_slot])) { delete m_buses_in[bus_slot]; errprintf ( "mmbus::port_start(): m_buses_in[%d] not null\n", bus_slot ); } m_buses_in[bus_slot] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue ); m_buses_in_active[bus_slot] = true; m_buses_in_init[bus_slot] = true; if (! replacement) m_num_in_buses++; } } /* end loop for clients */ /* * Get the number of MIDI input poll file descriptors. */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate info */ snd_seq_poll_descriptors /* get input descriptors */ ( m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN ); #endif // SEQ64_HAVE_LIBASOUND }
void MidiEnumeratorPrivate::rescan() { qDebug() << Q_FUNC_INFO; if (m_alsa == NULL) return; bool changed = false; QList <MidiOutputDevice*> destroyOutputs(m_outputDevices); QList <MidiInputDevice*> destroyInputs(m_inputDevices); snd_seq_client_info_t* clientInfo = NULL; snd_seq_client_info_alloca(&clientInfo); snd_seq_port_info_t* portInfo = NULL; snd_seq_port_info_alloca(&portInfo); snd_seq_client_info_set_client(clientInfo, 0); while (snd_seq_query_next_client(m_alsa, clientInfo) == 0) { /* Get the client ID */ int client = snd_seq_client_info_get_client(clientInfo); /* Ignore our own client */ if (m_address->client == client) continue; /* Go thru all available ports in the client */ snd_seq_port_info_set_client(portInfo, client); snd_seq_port_info_set_port(portInfo, -1); while (snd_seq_query_next_port(m_alsa, portInfo) == 0) { const snd_seq_addr_t* address = snd_seq_port_info_get_addr(portInfo); if (address == NULL) continue; uint caps = snd_seq_port_info_get_capability(portInfo); if (caps & SND_SEQ_PORT_CAP_READ) { // Don't expose own ports QString name = AlsaMidiUtil::extractName(m_alsa, address); if (name.contains("__QLC__") == true) continue; QVariant uid = AlsaMidiUtil::addressToVariant(address); MidiInputDevice* dev = inputDevice(uid); if (dev == NULL) { AlsaMidiInputDevice* dev = new AlsaMidiInputDevice( uid, name, address, m_alsa, m_inputThread, this); m_inputDevices << dev; changed = true; } else { destroyInputs.removeAll(dev); } } if (caps & SND_SEQ_PORT_CAP_WRITE) { // Don't expose own ports QString name = AlsaMidiUtil::extractName(m_alsa, address); if (name.contains("__QLC__") == true) continue; QVariant uid = AlsaMidiUtil::addressToVariant(address); MidiOutputDevice* dev = outputDevice(uid); if (dev == NULL) { AlsaMidiOutputDevice* dev = new AlsaMidiOutputDevice( uid, name, address, m_alsa, m_address, this); m_outputDevices << dev; changed = true; } else { destroyOutputs.removeAll(dev); } } } } foreach (MidiOutputDevice* dev, destroyOutputs) { m_outputDevices.removeAll(dev); delete dev; changed = true; }
void mastermidibus::port_start (int a_client, int a_port) { #ifdef HAVE_LIBASOUND automutex locker(m_mutex); snd_seq_client_info_t * cinfo; /* client info */ snd_seq_client_info_alloca(&cinfo); snd_seq_get_any_client_info(m_alsa_seq, a_client, cinfo); snd_seq_port_info_t * pinfo; /* port info */ snd_seq_port_info_alloca(&pinfo); snd_seq_get_any_port_info(m_alsa_seq, a_client, a_port, pinfo); int cap = snd_seq_port_info_get_capability(pinfo); /* get its capability */ if (snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo)) { if /* the outputs */ ( (cap & (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE)) == (SND_SEQ_PORT_CAP_SUBS_WRITE | SND_SEQ_PORT_CAP_WRITE) && snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo) ) { bool replacement = false; int bus_slot = m_num_out_buses; for (int i = 0; i < m_num_out_buses; i++) { if ( m_buses_out[i]->get_client() == a_client && m_buses_out[i]->get_port() == a_port && m_buses_out_active[i] == false ) { replacement = true; bus_slot = i; } } m_buses_out[bus_slot] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); m_buses_out[bus_slot]->init_out(); m_buses_out_active[bus_slot] = true; m_buses_out_init[bus_slot] = true; if (! replacement) m_num_out_buses++; } if /* the inputs */ ( (cap & (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ)) == (SND_SEQ_PORT_CAP_SUBS_READ | SND_SEQ_PORT_CAP_READ) && snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo) ) { bool replacement = false; int bus_slot = m_num_in_buses; for (int i = 0; i < m_num_in_buses; i++) { if ( m_buses_in[i]->get_client() == a_client && m_buses_in[i]->get_port() == a_port && m_buses_in_active[i] == false ) { replacement = true; bus_slot = i; } } m_buses_in[bus_slot] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue ); m_buses_in_active[bus_slot] = true; m_buses_in_init[bus_slot] = true; if (! replacement) m_num_in_buses++; } } /* end loop for clients */ /* * Get the number of MIDI input poll file descriptors. */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate info */ snd_seq_poll_descriptors /* get input descriptors */ ( m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN ); #endif // HAVE_LIBASOUND }
void mastermidibus::init() { #ifdef HAVE_LIBASOUND snd_seq_client_info_t * cinfo; /* client info */ snd_seq_port_info_t * pinfo; /* port info */ snd_seq_client_info_alloca(&cinfo); snd_seq_client_info_set_client(cinfo, -1); if (global_manual_alsa_ports) { int num_buses = 16; for (int i = 0; i < num_buses; ++i) { m_buses_out[i] = new midibus ( snd_seq_client_id(m_alsa_seq), m_alsa_seq, i+1, m_queue ); m_buses_out[i]->init_out_sub(); m_buses_out_active[i] = true; m_buses_out_init[i] = true; } m_num_out_buses = num_buses; m_num_in_buses = 1; /* only one in, or 0? */ m_buses_in[0] = new midibus ( snd_seq_client_id(m_alsa_seq), m_alsa_seq, m_num_in_buses, m_queue ); m_buses_in[0]->init_in_sub(); m_buses_in_active[0] = true; m_buses_in_init[0] = true; } else { /* While the next client for the sequencer is available */ while (snd_seq_query_next_client(m_alsa_seq, cinfo) >= 0) { int client = snd_seq_client_info_get_client(cinfo); snd_seq_port_info_alloca(&pinfo); /* will fill pinfo */ snd_seq_port_info_set_client(pinfo, client); snd_seq_port_info_set_port(pinfo, -1); while (snd_seq_query_next_port(m_alsa_seq, pinfo) >= 0) { /* While the next port is available, get its capability */ int cap = snd_seq_port_info_get_capability(pinfo); if ( snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo) && snd_seq_port_info_get_client(pinfo) != SND_SEQ_CLIENT_SYSTEM ) { if /* the outputs */ ( (cap & SND_SEQ_PORT_CAP_SUBS_WRITE) != 0 && snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo) ) { m_buses_out[m_num_out_buses] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_out_buses, m_queue ); if (m_buses_out[m_num_out_buses]->init_out()) { m_buses_out_active[m_num_out_buses] = true; m_buses_out_init[m_num_out_buses] = true; } else m_buses_out_init[m_num_out_buses] = true; m_num_out_buses++; } if /* the inputs */ ( (cap & SND_SEQ_PORT_CAP_SUBS_READ) != 0 && snd_seq_client_id(m_alsa_seq) != snd_seq_port_info_get_client(pinfo) ) { m_buses_in[m_num_in_buses] = new midibus ( snd_seq_client_id(m_alsa_seq), snd_seq_port_info_get_client(pinfo), snd_seq_port_info_get_port(pinfo), m_alsa_seq, snd_seq_client_info_get_name(cinfo), snd_seq_port_info_get_name(pinfo), m_num_in_buses, m_queue ); m_buses_in_active[m_num_in_buses] = true; m_buses_in_init[m_num_in_buses] = true; m_num_in_buses++; } } } } /* end loop for clients */ } set_bpm(c_bpm); set_ppqn(c_ppqn); /* * Get the number of MIDI input poll file descriptors. */ m_num_poll_descriptors = snd_seq_poll_descriptors_count(m_alsa_seq, POLLIN); m_poll_descriptors = new pollfd[m_num_poll_descriptors]; /* allocate into */ snd_seq_poll_descriptors /* get input poll descriptors */ ( m_alsa_seq, m_poll_descriptors, m_num_poll_descriptors, POLLIN ); set_sequence_input(false, nullptr); /* Set the input and output buffer sizes */ snd_seq_set_output_buffer_size(m_alsa_seq, c_midibus_output_size); snd_seq_set_input_buffer_size(m_alsa_seq, c_midibus_input_size); m_bus_announce = new midibus ( snd_seq_client_id(m_alsa_seq), SND_SEQ_CLIENT_SYSTEM, SND_SEQ_PORT_SYSTEM_ANNOUNCE, m_alsa_seq, "system", "annouce", 0, m_queue ); m_bus_announce->set_input(true); for (int i = 0; i < m_num_out_buses; i++) set_clock(i, m_init_clock[i]); for (int i = 0; i < m_num_in_buses; i++) set_input(i, m_init_input[i]); #endif // HAVE_LIBASOUND }
// Client:port refreshner. int qjackctlAlsaClientList::updateClientPorts (void) { qjackctlMainForm *pMainForm = qjackctlMainForm::getInstance(); if (pMainForm == NULL) return 0; snd_seq_t *pAlsaSeq = pMainForm->alsaSeq(); if (pAlsaSeq == NULL) return 0; int iDirtyCount = 0; markClientPorts(0); #ifdef CONFIG_ALSA_SEQ unsigned int uiAlsaFlags; if (isReadable()) uiAlsaFlags = SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ; else uiAlsaFlags = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE; snd_seq_client_info_t *pClientInfo; snd_seq_port_info_t *pPortInfo; snd_seq_client_info_alloca(&pClientInfo); snd_seq_port_info_alloca(&pPortInfo); snd_seq_client_info_set_client(pClientInfo, -1); while (snd_seq_query_next_client(pAlsaSeq, pClientInfo) >= 0) { int iAlsaClient = snd_seq_client_info_get_client(pClientInfo); if (iAlsaClient > 0) { qjackctlAlsaClient *pClient = findClient(iAlsaClient); snd_seq_port_info_set_client(pPortInfo, iAlsaClient); snd_seq_port_info_set_port(pPortInfo, -1); while (snd_seq_query_next_port(pAlsaSeq, pPortInfo) >= 0) { unsigned int uiPortCapability = snd_seq_port_info_get_capability(pPortInfo); if (((uiPortCapability & uiAlsaFlags) == uiAlsaFlags) && ((uiPortCapability & SND_SEQ_PORT_CAP_NO_EXPORT) == 0)) { QString sClientName = QString::number(iAlsaClient) + ':'; sClientName += QString::fromUtf8( snd_seq_client_info_get_name(pClientInfo)); qjackctlAlsaPort *pPort = 0; int iAlsaPort = snd_seq_port_info_get_port(pPortInfo); if (pClient == 0) { pClient = new qjackctlAlsaClient(this, sClientName, iAlsaClient); iDirtyCount++; } else { pPort = pClient->findPort(iAlsaPort); if (sClientName != pClient->clientName()) { pClient->setClientName(sClientName); iDirtyCount++; } } if (pClient) { QString sPortName = QString::number(iAlsaPort) + ':'; sPortName += QString::fromUtf8( snd_seq_port_info_get_name(pPortInfo)); if (pPort == 0) { pPort = new qjackctlAlsaPort(pClient, sPortName, iAlsaPort); iDirtyCount++; } else if (sPortName != pPort->portName()) { pPort->setPortName(sPortName); iDirtyCount++; } } if (pPort) pPort->markClientPort(1); } } } } #endif // CONFIG_ALSA_SEQ iDirtyCount += cleanClientPorts(0); return iDirtyCount; }
bool midi_init() { snd_seq_addr_t sender, receiver; snd_seq_port_info_t *pinfo; snd_seq_client_info_t *cinfo; bool found = false; if (snd_seq_open(&s_midi, "default", SND_SEQ_OPEN_OUTPUT, 0) < 0) { Error("Failed to initialize MIDI\n"); s_midi = NULL; return false; } snd_seq_set_client_name(s_midi, s_midiCaption); /* Create a port to work on */ s_midiPort = snd_seq_create_simple_port(s_midi, s_midiCaption, SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ, SND_SEQ_PORT_TYPE_MIDI_GENERIC); if (s_midiPort < 0) { Error("Failed to initialize MIDI\n"); snd_seq_close(s_midi); s_midi = NULL; return false; } /* Try to find a MIDI out */ snd_seq_port_info_alloca(&pinfo); snd_seq_client_info_alloca(&cinfo); snd_seq_client_info_set_client(cinfo, -1); /* Walk all clients and ports, and see if one matches our demands */ while (snd_seq_query_next_client(s_midi, cinfo) >= 0 && !found) { int client; client = snd_seq_client_info_get_client(cinfo); if (client == 0) continue; snd_seq_port_info_set_client(pinfo, client); snd_seq_port_info_set_port(pinfo, -1); while (snd_seq_query_next_port(s_midi, pinfo) >= 0) { if ((snd_seq_port_info_get_capability(pinfo) & (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) != (SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE)) continue; /* Most linux installations come with a Midi Through Port. * This is 'hardware' support that mostly ends up on your serial, which * you most likely do not have connected. So we skip it by default. */ if (strncmp("Midi Through Port", snd_seq_port_info_get_name(pinfo), 17) == 0) continue; found = true; break; } } if (!found) { Error("No valid MIDI output ports.\n Please install and start Timidity++ like: timidity -iA\n"); snd_seq_delete_port(s_midi, s_midiPort); snd_seq_close(s_midi); s_midi = NULL; return false; } /* Subscribe ourself to the port */ receiver.client = snd_seq_port_info_get_client(pinfo); receiver.port = snd_seq_port_info_get_port(pinfo); sender.client = snd_seq_client_id(s_midi); sender.port = s_midiPort; snd_seq_port_subscribe_malloc(&s_midiSubscription); snd_seq_port_subscribe_set_sender(s_midiSubscription, &sender); snd_seq_port_subscribe_set_dest(s_midiSubscription, &receiver); snd_seq_port_subscribe_set_time_update(s_midiSubscription, 1); snd_seq_port_subscribe_set_time_real(s_midiSubscription, 1); if (snd_seq_subscribe_port(s_midi, s_midiSubscription) < 0) { Error("Failed to subscript to MIDI output\n"); snd_seq_delete_port(s_midi, s_midiPort); snd_seq_close(s_midi); s_midi = NULL; return false; } /* Start the MIDI decoder */ if (snd_midi_event_new(4, &s_midiCoder) < 0) { Error("Failed to initialize MIDI decoder\n"); snd_seq_delete_port(s_midi, s_midiPort); snd_seq_close(s_midi); s_midi = NULL; return false; } snd_midi_event_init(s_midiCoder); return true; }