From 8bc18db80fc71b743040b2ce7caa887d9cf05698 Mon Sep 17 00:00:00 2001
From: Matthew Kennedy <matthewkennedy@outlook.com>
Date: Thu, 23 Jul 2020 01:12:38 -0700
Subject: [PATCH] base class

---
 firmware/controllers/algo/airmass/airmass.cpp | 10 ++++++++++
 firmware/controllers/algo/airmass/airmass.h   | 16 ++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 firmware/controllers/algo/airmass/airmass.cpp

diff --git a/firmware/controllers/algo/airmass/airmass.cpp b/firmware/controllers/algo/airmass/airmass.cpp
new file mode 100644
index 0000000000..3ede8519e1
--- /dev/null
+++ b/firmware/controllers/algo/airmass/airmass.cpp
@@ -0,0 +1,10 @@
+#include "airmass.h"
+
+AirmassModelBase::AirmassModelBase(const ValueProvider3D& veTable) : m_veTable(&veTable) {}
+
+float AirmassModelBase::getVe(int rpm, float load) const {
+	efiAssert(OBD_PCM_Processor_Fault, m_veTable != nullptr, "VE table null", 0);
+
+	// TODO: allow override of the Y axis value based on a config field
+	return m_veTable->getValue(rpm, load);
+}
diff --git a/firmware/controllers/algo/airmass/airmass.h b/firmware/controllers/algo/airmass/airmass.h
index a5ad25950c..338741da5f 100644
--- a/firmware/controllers/algo/airmass/airmass.h
+++ b/firmware/controllers/algo/airmass/airmass.h
@@ -1,6 +1,22 @@
 #pragma once
 
+#include "engine.h"
+
 struct AirmassResult {
 	float CylinderAirmass = 0;
 	float EngineLoadPercent = 100;
 };
+
+struct AirmassModelBase {
+	DECLARE_ENGINE_PTR;
+
+	AirmassModelBase(const ValueProvider3D& veTable);
+	virtual AirmassResult getAirmass(int rpm) = 0;
+
+protected:
+	// Retrieve the user-calibrated volumetric efficiency from the table
+	float getVe(int rpm, percent_t load) const;
+
+private:
+	const ValueProvider3D* const m_veTable;
+};