From d9e8c34a89c6f8164e3a7c79e679d6ff9a7761fb Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Tue, 11 Mar 2014 13:48:25 +1100
Subject: [PATCH] GCS_MAVLink: allow for proxying of larger MAVLink messages on
 PX4

this makes it possible to deal with large MAVLink messages
---
 libraries/GCS_MAVLink/GCS_MAVLink.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libraries/GCS_MAVLink/GCS_MAVLink.h b/libraries/GCS_MAVLink/GCS_MAVLink.h
index 72e51cc730..616f5ef3db 100644
--- a/libraries/GCS_MAVLink/GCS_MAVLink.h
+++ b/libraries/GCS_MAVLink/GCS_MAVLink.h
@@ -32,10 +32,14 @@
 
 #include "include/mavlink/v1.0/ardupilotmega/version.h"
 
+#if CONFIG_HAL_BOARD == HAL_BOARD_APM1 || CONFIG_HAL_BOARD == HAL_BOARD_APM2
 // this allows us to make mavlink_message_t much smaller. It means we
 // can't support the largest messages in common.xml, but we don't need
-// those for APM
+// those for APM1/APM2
 #define MAVLINK_MAX_PAYLOAD_LEN 104
+#else
+#define MAVLINK_MAX_PAYLOAD_LEN 255
+#endif
 
 #include "include/mavlink/v1.0/mavlink_types.h"