From 2b6fd2315c7a9e1879e6a90d7fed231f63874195 Mon Sep 17 00:00:00 2001
From: Matthew Kennedy <matthewkennedy@outlook.com>
Date: Sun, 2 Apr 2023 13:50:34 -0700
Subject: [PATCH] blend result returns blend parameter value for TS UI

(cherry picked from commit 1bc1e76efa4a926cf4fe53e70d9f57f2f76d42c4)
---
 firmware/controllers/math/engine_math.cpp | 4 ++--
 firmware/controllers/math/engine_math.h   | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/firmware/controllers/math/engine_math.cpp b/firmware/controllers/math/engine_math.cpp
index 9ec402f2ba..d7741c7ee2 100644
--- a/firmware/controllers/math/engine_math.cpp
+++ b/firmware/controllers/math/engine_math.cpp
@@ -456,7 +456,7 @@ BlendResult calculateBlend(blend_table_s& cfg, float rpm, float load) {
 	auto value = readGppwmChannel(cfg.blendParameter);
 
 	if (!value) {
-		return { 0, 0 };
+		return { 0, 0, 0 };
 	}
 
 	float tableValue = interpolate3d(
@@ -467,7 +467,7 @@ BlendResult calculateBlend(blend_table_s& cfg, float rpm, float load) {
 
 	float blendFactor = interpolate2d(value.Value, cfg.blendBins, cfg.blendValues);
 
-	return { blendFactor, 0.01f * blendFactor * tableValue };
+	return { value.Value, blendFactor, 0.01f * blendFactor * tableValue };
 }
 
 #endif /* EFI_ENGINE_CONTROL */
diff --git a/firmware/controllers/math/engine_math.h b/firmware/controllers/math/engine_math.h
index e223f8cca3..fddbbba52a 100644
--- a/firmware/controllers/math/engine_math.h
+++ b/firmware/controllers/math/engine_math.h
@@ -70,6 +70,9 @@ angle_t getPerCylinderFiringOrderOffset(uint8_t cylinderIndex, uint8_t cylinderN
 
 // Table blending helpers
 struct BlendResult {
+	// Input blend parameter (lookup to bias table)
+	float BlendParameter;
+
 	// Bias in percent (0-100%)
 	float Bias;