Sync with Sharebrained's fw, only Xylos TX works for now

firmware/baseband/proc_afskrx.hpp

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+/*
+ * Copyright (C) 2015 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.
+ */
+
+#ifndef __PROC_AFSKRX_H__
+#define __PROC_AFSKRX_H__
+
+#include "baseband_processor.hpp"
+
+#include "dsp_decimate.hpp"
+#include "dsp_demodulate.hpp"
+
+#include "audio_output.hpp"
+#include "message.hpp"
+
+class AFSKRXProcessor : public BasebandProcessor {
+public:
+	void execute(const buffer_c8_t& buffer) override;
+
+private:
+	std::array<complex16_t, 512> dst;
+	const buffer_c16_t dst_buffer {
+		dst.data(),
+		dst.size()
+	};
+	const buffer_f32_t work_audio_buffer {
+		(float*)dst.data(),
+		sizeof(dst) / sizeof(float)
+	};
+	
+	dsp::decimate::FIRAndDecimateComplex channel_filter;
+	dsp::demodulate::FM demod;	// 48000 5000
+	
+	dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;
+	dsp::decimate::FIRC16xR16x32Decim8 decim_1;
+
+	AudioOutput audio_output;
+
+    uint16_t bit_timer = 0, freq_timer = 0;
+	uint16_t sc;
+	uint8_t audc, spur, sign, prev_sign, bit = 0;
+	
+	int16_t aud[128];
+	
+	void data_handler(const double data);
+	
+	bool configured { false };
+	void configure(const NBFMConfigureMessage& message);
+};
+
+#endif/*__PROC_TPMS_H__*/