/**
* @brief Get the information from Comedi library
*
*/
void MainWindow::GetComediInfo()
{
int i,j;
int n_subdevices,type;
int chan,n_chans;
int n_ranges;
int subdev_flags;
comedi_range *rng;
ChannelList.clear();
// at the moment we are using the default device
const char optionsfilename[]="/dev/comedi0";
QString DeviceName=AppSettings.value(Key_Comedi_Device_Name).toString();
if (DeviceName.length()<=0) DeviceName=optionsfilename;
it = comedi_open(optionsfilename);
if(!it)
{
QMessageBox::warning(this, optionsfilename,
tr("Can not open the device\n"),
QMessageBox::Ok);
};
cbComediDevice->addItem(optionsfilename,1);
AppSettings.setValue(Key_Comedi_Device_Name,DeviceName);
QString buffer="Overall info:\n";
//buffer+=QString printf(" Version code: 0x%06x\n", comedi_get_version_code(it));
buffer+=QString(" Comedi version code: 0x%06x\n").arg(comedi_get_version_code(it));
buffer+=QString(" Driver name: %1\n").arg(comedi_get_driver_name(it));
buffer+=QString(" Board name: %1\n").arg(comedi_get_board_name(it));
n_subdevices = comedi_get_n_subdevices(it);
buffer+=QString(" Number of subdevices: %1\n").arg(n_subdevices);
tlComediInfo->setText(buffer);
int channel_unique_id=1;
// Now scan subdevices
for(i = 0; i < n_subdevices; i++)
{
buffer.clear();
type = comedi_get_subdevice_type(it, i);
if(type==COMEDI_SUBD_UNUSED) continue;
QTextEdit * tabText=new QTextEdit;
buffer+=QString("Subdevice %1\n").arg(i);
buffer+=QString("Type: %1 (%2)\n").arg(type).arg(subdevice_types[type]);
subdev_flags = comedi_get_subdevice_flags(it, i);
QString flagsstring;
flagsstring.sprintf("flags: 0x%08x\n",subdev_flags);
buffer+=flagsstring;
n_chans=comedi_get_n_channels(it,i);
buffer+=QString(" Number of channels: %1\n").arg(n_chans);
if ((type==1)||(type==2)) // Analog input or output
{
for(chan=0;chan<n_chans;chan++)
{
// here!
ChannelList.append(AIO_channel(QString(optionsfilename),i,chan,0,type==1,++channel_unique_id));
};
};
if(!comedi_maxdata_is_chan_specific(it,i))
{
buffer+=QString(" Maximal data value: %1\n").arg((unsigned long)comedi_get_maxdata(it,i,0));
}
else
{
buffer+=QString(" Maximal data value is channel specific:\n");
for(chan=0;chan<n_chans;chan++)
{
buffer+=QString(" Channel %1: %2\n").arg(chan).arg
((unsigned long)comedi_get_maxdata(it,i,chan));
}
};
buffer+=QString(" ranges:\n");
if (!comedi_range_is_chan_specific(it,i))
{
n_ranges=comedi_get_n_ranges(it,i,0);
buffer+=QString(" All channels:");
for(j=0;j<n_ranges;j++)
{
rng=comedi_get_range(it,i,0,j);
// buffer+=QString(" [%g,%g]",rng->min,rng->max);
buffer+=QString(" [%1,%2]").arg(rng->min).arg(rng->max);
}
buffer+=QString("\n");
}
else
{
for (chan=0;chan<n_chans;chan++)
{
n_ranges=comedi_get_n_ranges(it,i,chan);
printf(" chan%d:",chan);
for(j=0;j<n_ranges;j++)
{
rng=comedi_get_range(it,i,chan,j);
printf(" [%g,%g]",rng->min,rng->max);
}
printf("\n");
}
}
tabText->setText(buffer);
tabWidget->addTab(tabText,QString("subdevice %1").arg(i));
}
//printf(" command:\n");
//get_command_stuff(it,i);
tabWidget->setTabText(0,tr("Connections"));
// Create channles we might need; all are input channels save one
Ini_ImI= new AIO_channel(Key_Im_Input,1);
Ini_CmdI= new AIO_channel(Key_Cmd_Input,1);
Ini_CmI= new AIO_channel(Key_Cm_Tlgf_Input,1);
Ini_GainT= new AIO_channel(Key_Gain_Tlgf_Input,1);
Ini_FreqT= new AIO_channel(Key_Freq_Tlgf_Input,1);
Ini_LswT= new AIO_channel(Key_Lsw_Tlgf_Input,1);
Ini_CmdO= new AIO_channel(Key_Cmd_Output,0);
for (int ch=0;ch<ChannelList.count();ch++)
{
if (ChannelList[ch].is_input)
{
cbxAI_Im->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_ImI) {
int zzz=cbxAI_Im->count();
cbxAI_Im->setCurrentIndex(zzz-1);
};
cbxAI_Cmd->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_CmdI) { cbxAI_Cmd->setCurrentIndex(cbxAI_Cmd->count()-1); };
cbxAI_Cm_tlg->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_CmI) { cbxAI_Cm_tlg->setCurrentIndex(cbxAI_Cm_tlg->count()-1); };
cbxAI_Gain_tlg->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_GainT){ cbxAI_Gain_tlg->setCurrentIndex(cbxAI_Gain_tlg->count()-1); };
cbxAI_Freq_tlg->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_FreqT) { cbxAI_Freq_tlg->setCurrentIndex(cbxAI_Freq_tlg->count()-1); };
cbxAI_Lsw_tlg->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_LswT) { cbxAI_Lsw_tlg->setCurrentIndex(cbxAI_Lsw_tlg->count()-1); };
}
else
{
cbxAO_Cmd->addItem(ChannelList[ch].Description(),ChannelList[ch].ID());
if (ChannelList[ch]==Ini_CmdO)
{
cbxAO_Cmd->setCurrentIndex(cbxAO_Cmd->count()-1);
};
};
};
return;
}
static int openBoard( int board ) {
MY_BOARD_HARDWARE *pBoardHard = myHardwareBoardList + board;
MY_BOARD_SOFTWARE *pBoardSoft = mySoftwareBoardList + board;
fprintf( stderr, "openBoard[%d]\n", board );
fprintf( stderr, "sizeof(lsampl_t)=%d\n", sizeof(lsampl_t) );
fprintf( stderr, "sizeof(sampl_t)=%d\n", sizeof(sampl_t) );
if (pBoardHard == NULL || pBoardSoft == NULL) return 1;
pBoardHard->p_comediFileHandle = comedi_open( pBoardHard->devicePath );
if (pBoardHard->p_comediFileHandle == NULL) {
fprintf( stderr, "comedi_open failed for board[%d] %s\n", board, pBoardHard->devicePath );
return 1;
}
fprintf( stderr, "opened file\n" );
pBoardHard->subDeviceNumber =
comedi_find_subdevice_by_type(
pBoardHard->p_comediFileHandle,
COMEDI_SUBD_AI,
0
);
if (pBoardHard->subDeviceNumber < 0) {
fprintf( stderr, "subDeviceNum < 0 failed for board[%d]\n", board );
return 1;
}
fprintf( stderr, "get subDevice=%d\n", pBoardHard->subDeviceNumber );
int subDevFlags = comedi_get_subdevice_flags(
pBoardHard->p_comediFileHandle,
pBoardHard->subDeviceNumber
);
if (subDevFlags & SDF_PACKED) {
fprintf( stderr, "subDevice using bit per channel\n" );
} else {
if (subDevFlags & SDF_LSAMPL) {
pBoardHard->valueIsLsampl_t = 1;
fprintf( stderr, "subDevice using long word lsampl_t per channel\n" );
} else {
fprintf( stderr, "subDevice using word sampl_t per channel\n" );
}
}
pBoardHard->buffer_size_in_byte =
comedi_get_buffer_size(
pBoardHard->p_comediFileHandle,
pBoardHard->subDeviceNumber
);
fprintf( stderr, "board[%d] hardware buffer size in BYTES=%d\n",
board, pBoardHard->buffer_size_in_byte );
if (pBoardHard->buffer_size_in_byte <= 0) {
fprintf( stderr, "board buffer size faile\n" );
return 1;
}
if (pBoardHard->valueIsLsampl_t) {
pBoardHard->buffer_size_in_sample = pBoardHard->buffer_size_in_byte / sizeof(lsampl_t);
} else {
pBoardHard->buffer_size_in_sample = pBoardHard->buffer_size_in_byte / sizeof(sampl_t);
}
pBoardHard->buffer = mmap(
NULL,
pBoardHard->buffer_size_in_byte,
PROT_READ,
MAP_SHARED,
comedi_fileno(pBoardHard->p_comediFileHandle),
0
);
if (pBoardHard->buffer == MAP_FAILED) {
fprintf( stderr, "mmap failed for board[%d]\n", board );
return 1;
}
int numChannel = comedi_get_n_channels(
pBoardHard->p_comediFileHandle,
pBoardHard->subDeviceNumber
);
if (numChannel != pBoardSoft->numberOfActiveAnalogInputs) {
fprintf( stderr, "number of channel for board[%d] from comedi=%d harccode=%d\n",
board, numChannel, pBoardSoft->numberOfActiveAnalogInputs );
}
#ifdef SUPPORT_CHANNEL_SPECIFIC_RANGE
pBoardHard->maxDataIsChannelSpecific =
comedi_maxdata_is_chan_specific(
pBoardHard->p_comediFileHandle,
pBoardHard->subDeviceNumber
);
pBoardHard->rangeIsChannelSpecific =
comedi_maxdata_is_chan_specific(
pBoardHard->p_comediFileHandle,
pBoardHard->subDeviceNumber
);
if (pBoardHard->maxDataIsChannelSpecific) {
fprintf( stderr, "board[%d] supports different max data per channel\n", board );
}
if (pBoardHard->rangeIsChannelSpecific) {
fprintf( stderr, "board[%d] supports different range per channel\n", board );
}
#endif
return 0;
}
