mayhem-firmware/firmware/application/ui_pocsag_tx.cpp
2017-02-14 17:16:59 +00:00

175 lines
4.1 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* 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 "ui_pocsag_tx.hpp"
#include "baseband_api.hpp"
#include "string_format.hpp"
#include "ui_textentry.hpp"
#include "portapack_persistent_memory.hpp"
#include <cstring>
#include <stdio.h>
#include <math.h>
using namespace portapack;
using namespace pocsag;
namespace ui {
void POCSAGTXView::focus() {
tx_view.focus();
}
POCSAGTXView::~POCSAGTXView() {
transmitter_model.disable();
baseband::shutdown();
}
void POCSAGTXView::on_tx_progress(const int progress, const bool done) {
if (done) {
transmitter_model.disable();
progressbar.set_value(0);
tx_view.set_transmitting(false);
} else
progressbar.set_value(progress);
}
bool POCSAGTXView::start_tx() {
uint32_t total_frames, i, codeword, bi, address;
pocsag::BitRate bitrate;
std::vector<uint32_t> codewords;
MessageType type;
type = (MessageType)options_type.selected_index_value();
address = field_address.value_dec_u32();
if (address > 0x1FFFFFU) {
nav_.display_modal("Bad address", "Address must be less\nthan 2097152.", INFO, nullptr);
return false;
}
if (type == MessageType::NUMERIC_ONLY) {
// Check for invalid characters
if (message.find_first_not_of("0123456789SU -][") != std::string::npos) {
nav_.display_modal(
"Bad message",
"A numeric only message must\nonly contain:\n0123456789SU][- or space.",
INFO,
nullptr
);
return false;
}
}
pocsag_encode(type, BCH_code, message, address, codewords);
total_frames = codewords.size() / 2;
progressbar.set_max(total_frames);
transmitter_model.set_sampling_rate(2280000);
transmitter_model.set_rf_amp(true);
transmitter_model.set_lna(40);
transmitter_model.set_vga(40);
transmitter_model.set_baseband_bandwidth(1750000);
transmitter_model.enable();
uint8_t * data_ptr = shared_memory.bb_data.data;
bi = 0;
for (i = 0; i < codewords.size(); i++) {
codeword = codewords[i];
data_ptr[bi++] = (codeword >> 24) & 0xFF;
data_ptr[bi++] = (codeword >> 16) & 0xFF;
data_ptr[bi++] = (codeword >> 8) & 0xFF;
data_ptr[bi++] = codeword & 0xFF;
}
bitrate = pocsag_bitrates[options_bitrate.selected_index()];
baseband::set_fsk_data(
codewords.size() * 32,
2280000 / bitrate,
4500,
64
);
return true;
}
void POCSAGTXView::paint(Painter&) {
message = buffer;
text_message.set(message);
}
void POCSAGTXView::on_set_text(NavigationView& nav) {
textentry(nav, buffer, 16);
}
POCSAGTXView::POCSAGTXView(
NavigationView& nav
) : nav_ (nav)
{
baseband::run_image(portapack::spi_flash::image_tag_fsktx);
add_children({
&labels,
&options_bitrate,
&field_address,
&options_type,
&text_message,
&button_message,
&progressbar,
&tx_view
});
options_bitrate.set_selected_index(1); // 1200bps
options_type.set_selected_index(2); // Alphanumeric
button_message.on_select = [this, &nav](Button&) {
this->on_set_text(nav);
};
tx_view.on_edit_frequency = [this, &nav]() {
auto new_view = nav.push<FrequencyKeypadView>(receiver_model.tuning_frequency());
new_view->on_changed = [this](rf::Frequency f) {
receiver_model.set_tuning_frequency(f);
};
};
tx_view.on_start = [this]() {
if (start_tx())
tx_view.set_transmitting(true);
};
tx_view.on_stop = [this]() {
tx_view.set_transmitting(false);
transmitter_model.disable();
};
}
} /* namespace ui */