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"At least it builds, now"

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furrtek 2016-02-05 17:40:14 +01:00
parent 8009a9b543
commit c81ba5be8e
27 changed files with 112 additions and 88 deletions
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109
firmware/baseband/proc_afskrx.cpp
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@ -1,109 +0,0 @@
/*
* 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.
*/
#include "proc_afskrx.hpp"
#include "sine_table.hpp"
#include "portapack_shared_memory.hpp"
using namespace lpc43xx;
void AFSKRXProcessor::execute(const buffer_c8_t& buffer) {
if( !configured ) {
return;
}
/* Called every 2048/3072000 second -- 1500Hz. */
const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
auto audio = demod.execute(channel_out, work_audio_buffer);
/*static uint64_t audio_present_history = 0;
const auto audio_present_now = squelch.execute(audio);
audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
const bool audio_present = (audio_present_history != 0);
*/
//if( !audio_present ) {
// Zero audio buffer.
/*for(size_t i=0; i<audio.count; i++) {
if ((i % 3) > 1)
audio.p[i] = 4096;
else
audio.p[i] = -4096;
}*/
//}
//audio_hpf.execute_in_place(audio);
for(size_t i=0; i<audio.count; i++) {
if (spur > 10) {
if (audio.p[i] > 2000)
sign = 1;
if (audio.p[i] < -2000)
sign = 0;
spur = 0;
} else {
spur++;
}
if (sign != prev_sign) {
if (freq_timer < 15) // 48
bit = 0;
else
bit++;
freq_timer = 0;
}
prev_sign = sign;
if (freq_timer < 1000) freq_timer++; // TODO: Limit in a more intelligent way
}
if (bit_timer >= 40) {
bit_timer = 0;
// Check bit state here !
} else {
bit_timer++;
}
if (sc >= 600) {
sc = 0;
//AFSKDataMessage message;
//memcpy(message.data,aud,128*2);
//shared_memory.application_queue.push(message);
audc = 0;
} else {
sc++;
}
if (audc < 4) {
memcpy(aud+(audc*32),audio.p,32*2);
audc++;
}
audio_output.write(audio);
}
void AFSKRXProcessor::data_handler(
const double data
) {
/*AFSKDataMessage message;
message.data = 'T';
shared_memory.application_queue.push(message);*/
}