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BridgeSCPIServer.cpp
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BridgeSCPIServer.cpp
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/***********************************************************************************************************************
* *
* scpi-server-tools *
* *
* Copyright (c) 2012-2022 Andrew D. Zonenberg and contributors *
* All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the *
* following conditions are met: *
* *
* * Redistributions of source code must retain the above copyright notice, this list of conditions, and the *
* following disclaimer. *
* *
* * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the *
* following disclaimer in the documentation and/or other materials provided with the distribution. *
* *
* * Neither the name of the author nor the names of any contributors may be used to endorse or promote products *
* derived from this software without specific prior written permission. *
* *
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL *
* THE AUTHORS BE HELD LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES *
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE *
* POSSIBILITY OF SUCH DAMAGE. *
* *
***********************************************************************************************************************/
#include "BridgeSCPIServer.h"
#include <stdexcept>
#include "../log/log.h"
#define FS_PER_SECOND 1e15
#define SECONDS_PER_FS 1e-15
using namespace std;
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Construction / destruction
BridgeSCPIServer::BridgeSCPIServer(ZSOCKET sock)
: SCPIServer(sock)
{
}
BridgeSCPIServer::~BridgeSCPIServer()
{
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Helpers
bool BridgeSCPIServer::ParseDouble(const std::string& s, double& v)
{
try
{
v = stod(s);
return true;
}
catch (const std::invalid_argument& ia)
{
LogWarning("Invalid double: %s\n", s.c_str());
return false;
}
}
bool BridgeSCPIServer::ParseUint64(const std::string& s, uint64_t& v)
{
try
{
v = stoull(s);
return true;
}
catch (const std::invalid_argument& ia)
{
LogWarning("Invalid u64: %s\n", s.c_str());
return false;
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Command processing
bool BridgeSCPIServer::OnCommand(const std::string& line, const std::string& subject,
const std::string& cmd, const std::vector<std::string>& args)
{
(void) line;
if (subject == "")
{
// Device commands
if (cmd == "START")
AcquisitionStart(false);
else if (cmd == "SINGLE")
AcquisitionStart(true);
else if (cmd == "FORCE")
AcquisitionForceTrigger();
else if (cmd == "STOP")
AcquisitionStop();
else if (cmd == "RATE" && args.size() == 1)
{
uint64_t arg;
if (ParseUint64(args[0], arg))
SetSampleRate(arg);
else
return false;
}
else if (cmd == "DEPTH" && args.size() == 1)
{
uint64_t arg;
if (ParseUint64(args[0], arg))
SetSampleDepth(arg);
else
return false;
}
else
return false;
}
else
{
if (subject == "TRIG")
{
// Trigger commands
if (cmd == "DELAY" && args.size() == 1)
{
uint64_t arg;
if (ParseUint64(args[0], arg))
SetTriggerDelay(arg);
else
return false;
}
else if (cmd == "SOU" && args.size() == 1)
{
size_t arg;
if (GetChannelID(args[0], arg))
SetTriggerSource(arg);
else
return false;
}
else if (cmd == "MODE" && args.size() == 1)
{
if (args[0] == "EDGE")
SetTriggerTypeEdge();
else
return false;
}
else if (cmd == "LEV" && args.size() == 1)
{
double arg;
if (ParseDouble(args[0], arg))
SetTriggerLevel(arg);
else
return false;
}
else if (cmd == "EDGE:DIR" && args.size() == 1)
SetEdgeTriggerEdge(args[0]);
else
return false;
}
else
{
// Channel commands (probably)
size_t channelId;
if (!GetChannelID(subject, channelId)) return false;
ChannelType channelType = GetChannelType(channelId);
if (cmd == "ON")
SetChannelEnabled(channelId, true);
else if (cmd == "OFF")
SetChannelEnabled(channelId, false);
else if (cmd == "COUP" && channelType == CH_ANALOG && args.size() == 1)
SetAnalogCoupling(channelId, args[0]);
else if (cmd == "RANGE" && channelType == CH_ANALOG && args.size() == 1)
{
double arg;
if (ParseDouble(args[0], arg))
SetAnalogRange(channelId, arg);
else
return false;
}
else if (cmd == "OFFS" && channelType == CH_ANALOG && args.size() == 1)
{
double arg;
if (ParseDouble(args[0], arg))
SetAnalogOffset(channelId, arg);
else
return false;
}
else if (cmd == "THRESH" && channelType == CH_DIGITAL && args.size() == 1)
{
double arg;
if (ParseDouble(args[0], arg))
SetDigitalThreshold(channelId, arg);
else
return false;
}
else if (cmd == "HYS" && channelType == CH_DIGITAL && args.size() == 1)
{
double arg;
if (ParseDouble(args[0], arg))
SetDigitalHysteresis(channelId, arg);
else
return false;
}
else
return false;
}
}
return true;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Query processing
bool BridgeSCPIServer::OnQuery(const string& line, const string& subject, const string& cmd)
{
(void) line; (void) subject;
//Read ID code
if(cmd == "*IDN")
SendReply(GetMake() + "," + GetModel() + "," + GetSerial() + "," + GetFirmwareVersion());
//Get number of channels
else if(cmd == "CHANS")
SendReply(to_string(GetAnalogChannelCount()));
//Checks if we're armed
else if(cmd == "ARMED")
{
if(IsTriggerArmed())
SendReply("1");
else
SendReply("0");
}
//Get legal sample rates for the current configuration
else if(cmd == "RATES")
{
auto rates = GetSampleRates();
string ret = "";
for(auto rate : rates)
{
double interval = FS_PER_SECOND / rate;
ret += to_string(interval) + ",";
}
SendReply(ret);
}
//Get memory depths
else if(cmd == "DEPTHS")
{
auto depths = GetSampleDepths();
string ret = "";
for(auto d : depths)
ret += to_string(d) + ",";
SendReply(ret);
}
//Nope, invalid command or something handled by the derived class
else
return false;
return true;
}