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add preampgain function #56

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Merged
astronomerdave merged 1 commit into from
Apr 14, 2025
Merged

add preampgain function #56

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104 changes: 104 additions & 0 deletions camerad/archon.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7404,6 +7404,110 @@ namespace Archon {
/**************** Archon::Interface::bias ***********************************/


/***** Archon::Interface::preampgain ****************************************/
/**
* @brief set/get the ADC preamp gain
* @param args contains: gain {low|high}
* @return ERROR or NO_ERROR
*
*/
long Interface::preampgain(std::string args, std::string &retstring) {
const std::string function("Archon::Interface::preampgain");
std::stringstream message;
int gain;
long error = NO_ERROR;

// must have loaded firmware
//
if ( ! this->firmwareloaded ) {
this->camera.log_error( function, "firmware not loaded" );
return ERROR;
}

// make a list of installed AD modules
//
std::vector<int> admodules;
for ( int i=0; i<nmods; i++ ) {
if ( this->modtype[i] == 2 ) admodules.push_back(i);
}
if (admodules.size()==0) {
this->camera.log_error( function, "no AD modules found" );
return ERROR;
}

// no args is read gain
//
if ( args.empty() ) {
std::vector<int> gains;

// read gain of all AD modules into gains vecctor
for ( const auto &mod : admodules ) {
std::string key ( "MOD" + std::to_string(mod) + "/PREAMPGAIN" );
error |= this->get_configmap_value(key, gain);
gains.push_back(gain);
}

if ( error != NO_ERROR || gains.size() < 1 ) {
this->camera.log_error( function, "reading PREAMPGAIN or no AD modules found" );
return ERROR;
}

// are they all the same?
if ( ! std::equal(gains.begin()+1, gains.end(), gains.begin()) ) {
logwrite( function, "NOTICE: AD gains not the same" );
message.str(""); message << "gains =";
for ( const auto &gain : gains ) message << " " << (gain==0?"low":"high");
retstring = message.str();
}
else {
retstring = gains.front()==0 ? "low" : "high";
}
return NO_ERROR;
}

// if not read-only then get the arg is the requested gain level
//
if ( caseCompareString(args, "low") ) gain=0;
else
if ( caseCompareString(args, "high") ) gain=1;
else {
this->camera.log_error( function, "bad arguments: expected {low|high}" );
return ERROR;
}

// write preamp gain configuration to each AD module
//
for ( const auto &mod : admodules ) {
bool changed = false;
std::string key ( "MOD" + std::to_string(mod) + "/PREAMPGAIN" );
std::string val ( gain==0 ? "0" : "1" );

// write the config line
error |= this->write_config_key(key.c_str(), val.c_str(), changed);

// send the APPLYMODx command
std::stringstream applystr;
applystr << "APPLYMOD"
<< std::setfill('0')
<< std::setw(2)
<< std::hex
<< (mod-1);
if (error==NO_ERROR) error |= this->archon_cmd(applystr.str());

if (error==NO_ERROR) {
logwrite( function, "applied preamp gain="+args+" to AD "+std::to_string(mod) );
}
else {
this->camera.log_error( function, "applying preamp gain="+args+" to AD "+std::to_string(mod) );
}
}

retstring = gain==0?"LOW":"HIGH";
return error;
}
/***** Archon::Interface::preampgain ****************************************/


/**************** Archon::Interface::cds ************************************/
/**
* @fn cds
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2 changes: 2 additions & 0 deletions camerad/archon.h
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Original file line number Diff line number Diff line change
Expand Up @@ -274,6 +274,8 @@ namespace Archon {

long bias(std::string args, std::string &retstring);

long preampgain(std::string args, std::string &retstring);

long cds(std::string args, std::string &retstring);

long inreg(std::string args);
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10 changes: 9 additions & 1 deletion camerad/camerad.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -785,7 +785,15 @@ void doit(Network::TcpSocket sock) {
sock.Write(retstring);
sock.Write(" ");
}
} else if (cmd == "echo") {
}
else if (cmd == "preampgain") {
ret = server.preampgain(args, retstring);
if (!retstring.empty()) {
sock.Write(retstring);
sock.Write(" ");
}
}
else if (cmd == "echo") {
sock.Write(args);
sock.Write("\n");
} else if (cmd == "interface") {
Expand Down