From c9862b1502092bf1ed04b941883b4f00f627317b Mon Sep 17 00:00:00 2001
From: pepevalbe <pepevalbe@gmail.com>
Date: Thu, 31 Mar 2016 20:18:52 +0200
Subject: [PATCH] AP_Notify: New parameter to enable/disable buzzer

---
 libraries/AP_Notify/AP_Notify.cpp | 7 +++++++
 libraries/AP_Notify/AP_Notify.h   | 4 ++++
 2 files changed, 11 insertions(+)

diff --git a/libraries/AP_Notify/AP_Notify.cpp b/libraries/AP_Notify/AP_Notify.cpp
index 969068f2d0..be264b895b 100644
--- a/libraries/AP_Notify/AP_Notify.cpp
+++ b/libraries/AP_Notify/AP_Notify.cpp
@@ -41,6 +41,13 @@ const AP_Param::GroupInfo AP_Notify::var_info[] = {
     // @User: Advanced
     AP_GROUPINFO("LED_BRIGHT", 0, AP_Notify, _rgb_led_brightness, RGB_LED_HIGH),
 
+    // @Param: BUZZ_ENABLE
+    // @DisplayName: Buzzer enable
+    // @Description: Enable or disable the buzzer. Only for Linux and PX4 based boards.
+    // @Values: 0:Disable,1:Enable
+    // @User: Advanced
+    AP_GROUPINFO("BUZZ_ENABLE", 1, AP_Notify, _buzzer_enable, BUZZER_ON),
+
     AP_GROUPEND
 };
 
diff --git a/libraries/AP_Notify/AP_Notify.h b/libraries/AP_Notify/AP_Notify.h
index f68afe7b53..effa9f0c34 100644
--- a/libraries/AP_Notify/AP_Notify.h
+++ b/libraries/AP_Notify/AP_Notify.h
@@ -31,6 +31,8 @@
 #define RGB_LED_LOW     1
 #define RGB_LED_MEDIUM  2
 #define RGB_LED_HIGH    3
+#define BUZZER_ON       1
+#define BUZZER_OFF      0
 
 class AP_Notify
 {
@@ -97,8 +99,10 @@ public:
 
     static const struct AP_Param::GroupInfo var_info[];
 
+    bool buzzer_enabled() const { return _buzzer_enable; }
 private:
     static NotifyDevice* _devices[];
 
     AP_Int8 _rgb_led_brightness;
+    AP_Int8 _buzzer_enable;
 };