From 5b3e21fa7ca8dfa2c61105d8f36a0638eb177dca Mon Sep 17 00:00:00 2001
From: Kyle Johannes <kjohannes@intrepidcs.com>
Date: Thu, 22 Jun 2023 18:17:00 +0000
Subject: [PATCH] LIN: C API protected ID automatic calculation

---
 api/icsneolegacy/icsneolegacy.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/api/icsneolegacy/icsneolegacy.cpp b/api/icsneolegacy/icsneolegacy.cpp
index 51bf399..2527f4a 100644
--- a/api/icsneolegacy/icsneolegacy.cpp
+++ b/api/icsneolegacy/icsneolegacy.cpp
@@ -200,6 +200,11 @@ static bool SpyMessageToNeoMessage(const icsSpyMessage& oldmsg, neomessage_frame
 				linFrame.linStatus.txResponder = true;
 
 			copyFrameDataPtr();
+			uint8_t protID = linFrame.header[0] & 0x3Fu;
+			auto bit = [&](uint8_t pos)->uint8_t { return ((protID >> pos) & 0x1u); };
+			protID |= (~(bit(1) ^ bit(3) ^ bit(4) ^ bit(5)) << 7);
+			protID |= ((bit(0) ^ bit(1) ^ bit(2) ^ bit(4)) << 6);
+			linFrame.header[0] = protID;
 			if (frame.length > 2) {
 				size_t checksum = 0;
 				uint8_t* lastByte = nullptr;