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/*
* Copyright (C) 2005-2008 by Daniel Wagner
*
* This file is part of FFADO
* FFADO = Free FireWire (pro-)audio drivers for Linux
*
* FFADO is based upon FreeBoB.
*
* This program 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) version 3 of the License.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "libavc/audiosubunit/avc_function_block.h"
#include "libutil/serialize.h"
#include "libutil/cmd_serialize.h"
#include "libieee1394/ieee1394service.h"
#include <cerrno>
const bool bVerbose = false;
using namespace AVC;
using namespace Util;
using namespace Util::Cmd;
short int
getPan( Ieee1394Service& ieee1394service, int node_id, int ffb_id,
FunctionBlockCmd::EControlAttribute control_attrib )
{
FunctionBlockCmd fbCmd( ieee1394service,
FunctionBlockCmd::eFBT_Feature,
ffb_id,
control_attrib );
fbCmd.setNodeId( node_id );
fbCmd.setSubunitId( 0x00 );
fbCmd.setCommandType( AVCCommand::eCT_Status );
fbCmd.m_pFBFeature->m_audioChannelNumber = 2;
fbCmd.m_pFBFeature->m_controlSelector=FunctionBlockFeature::eCSE_Feature_LRBalance;
AVC::FunctionBlockFeatureLRBalance lr;
fbCmd.m_pFBFeature->m_pLRBalance = lr.clone();
fbCmd.m_pFBFeature->m_pLRBalance->m_lrBalance = 0;
fbCmd.setVerbose( bVerbose );
if (bVerbose) {
ieee1394service.setVerboseLevel( DEBUG_LEVEL_VERBOSE );
}
if ( !fbCmd.fire() ) {
printf( "cmd failed\n" );
}
if ( bVerbose ) {
CoutSerializer se;
fbCmd.serialize( se );
}
return fbCmd.m_pFBFeature->m_pLRBalance->m_lrBalance;
}
bool
setPan( Ieee1394Service& ieee1394service, int node_id, int ffb_id, int pan )
{
FunctionBlockCmd fbCmd( ieee1394service,
FunctionBlockCmd::eFBT_Feature,
ffb_id,
FunctionBlockCmd::eCA_Current );
fbCmd.setNodeId( node_id );
fbCmd.setSubunitId( 0x00 );
fbCmd.setCommandType( AVCCommand::eCT_Control );
fbCmd.m_pFBFeature->m_audioChannelNumber = 2;
fbCmd.m_pFBFeature->m_controlSelector=FunctionBlockFeature::eCSE_Feature_LRBalance;
AVC::FunctionBlockFeatureLRBalance lr;
fbCmd.m_pFBFeature->m_pLRBalance = lr.clone();
fbCmd.m_pFBFeature->m_pLRBalance->m_lrBalance = pan;
fbCmd.setVerbose( bVerbose );
if (bVerbose) {
ieee1394service.setVerboseLevel( DEBUG_LEVEL_VERBOSE );
}
bool bStatus = fbCmd.fire();
if ( !bStatus ) {
printf( "cmd failed\n" );
}
if ( bVerbose ) {
CoutSerializer se;
fbCmd.serialize( se );
}
return bStatus;
}
bool
doApp( Ieee1394Service& ieee1394service, int node_id, int fb_id, int pan )
{
short int maxPan = getPan( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Maximum );
short int minPan = getPan( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Minimum );
short int curPan = getPan( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Current );
printf( "max pan value = %d\n", maxPan );
printf( "min pan value = %d\n", minPan );
printf( "old pan value = %d\n", curPan );
//setPan( ieee1394service, node_id, fb_id, pan );
curPan = getPan( ieee1394service, node_id, fb_id, FunctionBlockCmd::eCA_Current );
printf( "new pan value = %d\n", curPan );
return true;
}
///////////////////////////
// main
//////////////////////////
int
main(int argc, char **argv)
{
if (argc < 4) {
printf("usage: NODE_ID FB_ID PAN\n");
exit(0);
}
errno = 0;
char* tail;
int node_id = strtol( argv[1], &tail, 0 );
int fb_id = strtol( argv[2], &tail, 0 );
int pan = strtol( argv[3], &tail, 0 );
if (errno) {
perror("argument parsing failed:");
return -1;
}
Ieee1394Service ieee1394service;
if ( !ieee1394service.initialize( 0 ) ) {
fprintf( stderr, "could not set port on ieee1394service\n" );
return -1;
}
doApp( ieee1394service, node_id, fb_id, pan );
return 0;
}
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