2015-12-02 06:04:04 +00:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
2015-12-08 23:28:33 +00:00
|
|
|
#include "analog_audio_app.hpp"
|
2015-12-02 06:04:04 +00:00
|
|
|
|
|
|
|
#include "portapack.hpp"
|
2016-01-03 20:47:22 +00:00
|
|
|
#include "portapack_shared_memory.hpp"
|
2015-12-02 06:04:04 +00:00
|
|
|
using namespace portapack;
|
|
|
|
|
2016-01-29 23:57:20 +00:00
|
|
|
#include "dsp_fir_taps.hpp"
|
|
|
|
#include "dsp_iir_config.hpp"
|
|
|
|
|
2015-12-02 06:04:04 +00:00
|
|
|
#include "utility.hpp"
|
|
|
|
|
|
|
|
AnalogAudioModel::AnalogAudioModel(ReceiverModel::Mode mode) {
|
|
|
|
receiver_model.set_baseband_configuration({
|
|
|
|
.mode = toUType(mode),
|
|
|
|
.sampling_rate = 3072000,
|
2015-12-29 18:55:55 +00:00
|
|
|
.decimation_factor = 1,
|
2015-12-02 06:04:04 +00:00
|
|
|
});
|
|
|
|
receiver_model.set_baseband_bandwidth(1750000);
|
2016-01-03 20:47:22 +00:00
|
|
|
|
2016-01-03 21:38:55 +00:00
|
|
|
switch(mode) {
|
|
|
|
case ReceiverModel::Mode::NarrowbandFMAudio:
|
|
|
|
configure_nbfm();
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ReceiverModel::Mode::WidebandFMAudio:
|
|
|
|
configure_wfm();
|
|
|
|
break;
|
|
|
|
|
2016-01-03 22:31:39 +00:00
|
|
|
case ReceiverModel::Mode::AMAudio:
|
|
|
|
configure_am();
|
|
|
|
break;
|
|
|
|
|
2016-01-03 21:38:55 +00:00
|
|
|
default:
|
|
|
|
break;
|
2016-01-03 20:47:22 +00:00
|
|
|
}
|
2016-01-03 21:38:55 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
void AnalogAudioModel::configure_nbfm() {
|
|
|
|
const NBFMConfigureMessage message {
|
|
|
|
taps_4k25_decim_0,
|
|
|
|
taps_4k25_decim_1,
|
|
|
|
taps_4k25_channel,
|
2016-01-30 03:23:30 +00:00
|
|
|
2,
|
2016-01-03 21:38:55 +00:00
|
|
|
2500,
|
2016-01-30 03:23:30 +00:00
|
|
|
audio_24k_hpf_300hz_config,
|
|
|
|
audio_24k_deemph_300_6_config
|
2016-01-03 21:38:55 +00:00
|
|
|
};
|
|
|
|
shared_memory.baseband_queue.push(message);
|
2016-01-30 03:23:30 +00:00
|
|
|
clock_manager.set_base_audio_clock_divider(2);
|
2016-01-03 21:38:55 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void AnalogAudioModel::configure_wfm() {
|
|
|
|
const WFMConfigureMessage message {
|
|
|
|
taps_200k_wfm_decim_0,
|
|
|
|
taps_200k_wfm_decim_1,
|
|
|
|
taps_64_lp_156_198,
|
|
|
|
75000,
|
2016-01-29 23:57:20 +00:00
|
|
|
audio_48k_hpf_30hz_config,
|
|
|
|
audio_48k_deemph_2122_6_config
|
2016-01-03 21:38:55 +00:00
|
|
|
};
|
|
|
|
shared_memory.baseband_queue.push(message);
|
2016-01-29 23:33:01 +00:00
|
|
|
clock_manager.set_base_audio_clock_divider(1);
|
2015-12-02 06:04:04 +00:00
|
|
|
}
|
2016-01-03 22:31:39 +00:00
|
|
|
|
|
|
|
void AnalogAudioModel::configure_am() {
|
|
|
|
const AMConfigureMessage message {
|
|
|
|
taps_6k0_decim_0,
|
|
|
|
taps_6k0_decim_1,
|
|
|
|
taps_6k0_channel,
|
2016-01-30 03:23:30 +00:00
|
|
|
4,
|
|
|
|
audio_12k_hpf_300hz_config
|
2016-01-03 22:31:39 +00:00
|
|
|
};
|
|
|
|
shared_memory.baseband_queue.push(message);
|
2016-01-30 03:23:30 +00:00
|
|
|
clock_manager.set_base_audio_clock_divider(4);
|
2016-01-03 22:31:39 +00:00
|
|
|
}
|