From 79ae413982147121e4afa25ff26e9416ef16636c Mon Sep 17 00:00:00 2001
From: Simone Guscetti <simone@px4.io>
Date: Thu, 16 Feb 2017 19:16:29 +0100
Subject: [PATCH] lib tunes: Add string input method

---
 src/lib/tunes/tunes.cpp | 11 +++++++++++
 src/lib/tunes/tunes.h   |  1 +
 2 files changed, 12 insertions(+)

diff --git a/src/lib/tunes/tunes.cpp b/src/lib/tunes/tunes.cpp
index 57a276cd69..33cc000518 100644
--- a/src/lib/tunes/tunes.cpp
+++ b/src/lib/tunes/tunes.cpp
@@ -140,6 +140,17 @@ int Tunes::parse_cmd(struct tune_control_s &tune_control, unsigned &frequency, u
 	return continue_sequnece;
 }
 
+int Tunes::parse_string(const char *string, unsigned &frequency, unsigned &duration, unsigned &silence)
+{
+	// set tune string the first time
+	if (_tune == nullptr) {
+		_tune = string;
+		_next = _tune;
+	}
+
+	return next_note(frequency, duration, silence);
+}
+
 unsigned Tunes::note_to_frequency(unsigned note)
 {
 	// compute the frequency (Hz)
diff --git a/src/lib/tunes/tunes.h b/src/lib/tunes/tunes.h
index 80ac9a80a0..0e40d44f60 100644
--- a/src/lib/tunes/tunes.h
+++ b/src/lib/tunes/tunes.h
@@ -54,6 +54,7 @@ public:
 	Tunes(unsigned tempo, unsigned octave, unsigned note_length, NoteMode mode);
 	~Tunes() = default;
 	int parse_cmd(tune_control_s &tune_control, unsigned &frequency, unsigned &duration, unsigned &silence);
+	int parse_string(const char *string, unsigned &frequency, unsigned &duration, unsigned &silence);
 
 private:
 	static const unsigned	_tune_max = 1024 * 8; // be reasonable about user tunes