From e5056f8d405e5f757d5746b9e71f012a5688faee Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Fri, 23 Feb 2018 14:48:02 +1100
Subject: [PATCH] Copter: add option to disable SPORT flight mode

Saves about 1,500 bytes
---
 ArduCopter/APM_Config.h | 1 +
 ArduCopter/Copter.h     | 2 ++
 ArduCopter/config.h     | 6 ++++++
 ArduCopter/mode.cpp     | 2 ++
 4 files changed, 11 insertions(+)

diff --git a/ArduCopter/APM_Config.h b/ArduCopter/APM_Config.h
index 3268a6a500..5765373a68 100644
--- a/ArduCopter/APM_Config.h
+++ b/ArduCopter/APM_Config.h
@@ -27,6 +27,7 @@
 //#define MODE_LOITER_ENABLED   DISABLED            // disable loiter mode support
 //#define MODE_POSHOLD_ENABLED  DISABLED            // disable poshold mode support
 //#define MODE_SMARTRTL_ENABLED DISABLED            // disable smartrtl mode support
+//#define MODE_SPORT_ENABLED DISABLED               // disable sport mode support
 
 
 // features below are disabled by default on all boards
diff --git a/ArduCopter/Copter.h b/ArduCopter/Copter.h
index 13121a0a6f..8d20372de7 100644
--- a/ArduCopter/Copter.h
+++ b/ArduCopter/Copter.h
@@ -980,7 +980,9 @@ private:
 #else
     ModeStabilize mode_stabilize;
 #endif
+#if MODE_SPORT_ENABLED == ENABLED
     ModeSport mode_sport;
+#endif
 #if ADSB_ENABLED == ENABLED
     ModeAvoidADSB mode_avoid_adsb;
 #endif
diff --git a/ArduCopter/config.h b/ArduCopter/config.h
index e17925f94a..509d5786d4 100644
--- a/ArduCopter/config.h
+++ b/ArduCopter/config.h
@@ -291,6 +291,12 @@
 # define MODE_SMARTRTL_ENABLED ENABLED
 #endif
 
+//////////////////////////////////////////////////////////////////////////////
+// Sport - fly vehicle in rate-controlled (earth-frame) mode
+#ifndef MODE_SPORT_ENABLED
+# define MODE_SPORT_ENABLED ENABLED
+#endif
+
 //////////////////////////////////////////////////////////////////////////////
 // RADIO CONFIGURATION
 //////////////////////////////////////////////////////////////////////////////
diff --git a/ArduCopter/mode.cpp b/ArduCopter/mode.cpp
index 8ae4d6ec53..4d4ec6a86a 100644
--- a/ArduCopter/mode.cpp
+++ b/ArduCopter/mode.cpp
@@ -82,9 +82,11 @@ Copter::Mode *Copter::mode_from_mode_num(const uint8_t mode)
             ret = &mode_drift;
             break;
 
+#if MODE_SPORT_ENABLED == ENABLED
         case SPORT:
             ret = &mode_sport;
             break;
+#endif
 
         case FLIP:
             ret = &mode_flip;