Rough implementation of capture mode

firmware/application/capture_app.cpp

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "capture_app.hpp"
+
+#include "baseband_api.hpp"
+
+#include "utility.hpp"
+
+namespace ui {
+
+CaptureAppView::CaptureAppView(NavigationView&) {
+	capture_thread = std::make_unique<AudioThread>("baseband.c16");
+
+	radio::enable({
+		tuning_frequency(),
+		sampling_rate,
+		baseband_bandwidth,
+		rf::Direction::Receive,
+		false, 16, 16,
+		1,
+	});
+
+	baseband::start({
+		.mode = 7,
+		.sampling_rate = sampling_rate,
+		.decimation_factor = 1,
+	});
+}
+
+CaptureAppView::~CaptureAppView() {
+	baseband::stop();
+	radio::disable();
+}
+
+uint32_t CaptureAppView::target_frequency() const {
+	return initial_target_frequency;
+}
+
+uint32_t CaptureAppView::tuning_frequency() const {
+	return target_frequency() - (sampling_rate / 4);
+}
+
+} /* namespace ui */