/***********************************************************************************************************************
*                                                                                                                      *
* libscopehal v0.1                                                                                                     *
*                                                                                                                      *
* Copyright (c) 2012-2021 Andrew D. Zonenberg and contributors                                                         *
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#include "scopehal.h"
#include "EdgeTrigger.h"
#include "AgilentOscilloscope.h"

using namespace std;

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Construction / destruction

EdgeTrigger::EdgeTrigger(Oscilloscope* scope)
	: Trigger(scope)
{
	CreateInput("din");

	m_typename = "Edge";
	m_parameters[m_typename] = FilterParameter(FilterParameter::TYPE_ENUM, Unit(Unit::UNIT_COUNTS));
	m_parameters[m_typename].AddEnumValue("Rising", EDGE_RISING);
	m_parameters[m_typename].AddEnumValue("Falling", EDGE_FALLING);
	m_parameters[m_typename].AddEnumValue("Any", EDGE_ANY);

	//Only Agilent scopes are known to support this
	if(dynamic_cast<AgilentOscilloscope*>(scope) != NULL)
		m_parameters[m_typename].AddEnumValue("Alternating", EDGE_ALTERNATING);
}

EdgeTrigger::~EdgeTrigger()
{

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Accessors

string EdgeTrigger::GetTriggerName()
{
	return "Edge";
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Input validation

bool EdgeTrigger::ValidateChannel(size_t i, StreamDescriptor stream)
{
	//We only can take one input
	if(i > 0)
		return false;

	//There has to be a signal to trigger on
	if(stream.m_channel == NULL)
		return false;

	//It has to be from the same instrument we're trying to trigger on
	if(stream.m_channel->GetScope() != m_scope)
		return false;

	return true;
}
