/* * Copyright (C) 2014 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 "analog_audio_app.hpp" #include "portapack.hpp" #include "portapack_shared_memory.hpp" using namespace portapack; #include "utility.hpp" AnalogAudioModel::AnalogAudioModel(ReceiverModel::Mode mode) { receiver_model.set_baseband_configuration({ .mode = toUType(mode), .sampling_rate = 3072000, .decimation_factor = 1, }); receiver_model.set_baseband_bandwidth(1750000); switch(mode) { case ReceiverModel::Mode::NarrowbandFMAudio: configure_nbfm(); break; case ReceiverModel::Mode::WidebandFMAudio: configure_wfm(); break; case ReceiverModel::Mode::AMAudio: configure_am(); break; default: break; } } void AnalogAudioModel::configure_nbfm() { const NBFMConfigureMessage message { taps_4k25_decim_0, taps_4k25_decim_1, taps_4k25_channel, 2500, }; shared_memory.baseband_queue.push(message); clock_manager.set_base_audio_clock_divider(3); } void AnalogAudioModel::configure_wfm() { const WFMConfigureMessage message { taps_200k_wfm_decim_0, taps_200k_wfm_decim_1, taps_64_lp_156_198, 75000, }; shared_memory.baseband_queue.push(message); clock_manager.set_base_audio_clock_divider(1); } void AnalogAudioModel::configure_am() { const AMConfigureMessage message { taps_6k0_decim_0, taps_6k0_decim_1, taps_6k0_channel, }; shared_memory.baseband_queue.push(message); clock_manager.set_base_audio_clock_divider(6); }