Start/stop control of baseband capture.

firmware/application/capture_app.cpp

@@ -28,7 +28,13 @@
 namespace ui {
 
 CaptureAppView::CaptureAppView(NavigationView&) {
-	capture_thread = std::make_unique<AudioThread>("baseband.c16");
+	add_children({ {
+		&button_start,
+		&button_stop,
+	} });
+
+	button_start.on_select = [this](Button&){ this->on_start(); };
+	button_stop.on_select = [this](Button&){ this->on_stop(); };
 
 	radio::enable({
 		tuning_frequency(),
@@ -51,6 +57,20 @@ CaptureAppView::~CaptureAppView() {
 	radio::disable();
 }
 
+void CaptureAppView::focus() {
+	button_start.focus();
+}
+
+void CaptureAppView::on_start() {
+	if( !capture_thread ) {
+		capture_thread = std::make_unique<AudioThread>("baseband.c16");
+	}
+}
+
+void CaptureAppView::on_stop() {
+	capture_thread.reset();
+}
+
 uint32_t CaptureAppView::target_frequency() const {
 	return initial_target_frequency;
 }

firmware/application/capture_app.hpp

@@ -37,6 +37,8 @@ public:
 	CaptureAppView(NavigationView& nav);
 	~CaptureAppView();
 
+	void focus() override;
+
 	std::string title() const override { return "Capture"; };
 
 private:
@@ -48,6 +50,19 @@ private:
 
 	uint32_t target_frequency() const;
 	uint32_t tuning_frequency() const;
+
+	void on_start();
+	void on_stop();
+
+	Button button_start {
+		{ 16, 17 * 16, 96, 24 },
+		"Start"
+	};
+
+	Button button_stop {
+		{ 240 - 96 - 16, 17 * 16, 96, 24 },
+		"Stop"
+	};
 };
 
 } /* namespace ui */