From d31e4c7815cc2997fb983682d434fa430db6bc5c Mon Sep 17 00:00:00 2001
From: cschwinne <dev.aircoookie@gmail.com>
Date: Wed, 17 Nov 2021 11:13:07 +0100
Subject: [PATCH] Added getPinOwner

Only disable builtin LED if bus to avoid breaking other things on the pin
---
 wled00/button.cpp      | 7 +++++--
 wled00/pin_manager.cpp | 5 +++++
 wled00/pin_manager.h   | 2 ++
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/wled00/button.cpp b/wled00/button.cpp
index 39c1e4f7f..aef18c77e 100644
--- a/wled00/button.cpp
+++ b/wled00/button.cpp
@@ -299,8 +299,11 @@ void handleIO()
       #ifdef ESP8266
       // turn off built-in LED if strip is turned off
       // this will break digital bus so will need to be reinitialised on On
-      pinMode(LED_BUILTIN, OUTPUT);
-      digitalWrite(LED_BUILTIN, HIGH);
+      PinOwner ledPinOwner = pinManager.getPinOwner(LED_BUILTIN);
+      if (!strip.isOffRefreshRequred && (ledPinOwner == PinOwner::None || ledPinOwner == PinOwner::BusDigital)) {
+        pinMode(LED_BUILTIN, OUTPUT);
+        digitalWrite(LED_BUILTIN, HIGH);
+      }
       #endif
       if (rlyPin>=0) {
         pinMode(rlyPin, OUTPUT);
diff --git a/wled00/pin_manager.cpp b/wled00/pin_manager.cpp
index 38e6e1621..ece48c248 100644
--- a/wled00/pin_manager.cpp
+++ b/wled00/pin_manager.cpp
@@ -125,6 +125,11 @@ bool PinManagerClass::isPinOk(byte gpio, bool output)
   return false;
 }
 
+PinOwner PinManagerClass::getPinOwner(byte gpio) {
+  if (!isPinOk(gpio, false)) return PinOwner::None;
+  return ownerTag[gpio];
+}
+
 #ifdef ARDUINO_ARCH_ESP32
 byte PinManagerClass::allocateLedc(byte channels)
 {
diff --git a/wled00/pin_manager.h b/wled00/pin_manager.h
index 63f6d95e8..65d319664 100644
--- a/wled00/pin_manager.h
+++ b/wled00/pin_manager.h
@@ -92,6 +92,8 @@ class PinManagerClass {
   bool isPinAllocated(byte gpio, PinOwner tag = PinOwner::None);
   bool isPinOk(byte gpio, bool output = true);
 
+  PinOwner getPinOwner(byte gpio);
+
   #ifdef ARDUINO_ARCH_ESP32
   byte allocateLedc(byte channels);
   void deallocateLedc(byte pos, byte channels);