mayhem-firmware/firmware/application/app_settings.cpp

/*
 * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2016 Furrtek
 * Copyright (C) 2022 Arjan Onwezen
 *
 * 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 "app_settings.hpp"

#include "file.hpp"
#include "portapack.hpp"
#include "portapack_persistent_memory.hpp"
#include <cstring>
#include <algorithm>

namespace std {

int app_settings::load(std::string application, AppSettings* settings) {
    if (portapack::persistent_memory::load_app_settings()) {
        file_path = folder + "/" + application + ".ini";

        auto error = settings_file.open(file_path);
        if (!error.is_valid()) {
            auto error = settings_file.read(file_content, std::min((int)settings_file.size(), MAX_FILE_CONTENT_SIZE));

            settings->baseband_bandwidth = std::app_settings::read_long_long(file_content, "baseband_bandwidth=");
            settings->channel_bandwidth = std::app_settings::read_long_long(file_content, "channel_bandwidth=");
            settings->lna = std::app_settings::read_long_long(file_content, "lna=");
            settings->modulation = std::app_settings::read_long_long(file_content, "modulation=");
            settings->rx_amp = std::app_settings::read_long_long(file_content, "rx_amp=");
            settings->rx_frequency = std::app_settings::read_long_long(file_content, "rx_frequency=");
            settings->sampling_rate = std::app_settings::read_long_long(file_content, "sampling_rate=");
            settings->vga = std::app_settings::read_long_long(file_content, "vga=");
            settings->tx_amp = std::app_settings::read_long_long(file_content, "tx_amp=");
            settings->tx_frequency = std::app_settings::read_long_long(file_content, "tx_frequency=");
            settings->tx_gain = std::app_settings::read_long_long(file_content, "tx_gain=");
            settings->step = std::app_settings::read_long_long(file_content, "step=");
            settings->modulation = std::app_settings::read_long_long(file_content, "modulation=");
            settings->am_config_index = std::app_settings::read_long_long(file_content, "am_config_index=");
            settings->nbfm_config_index = std::app_settings::read_long_long(file_content, "nbfm_config_index=");
            settings->wfm_config_index = std::app_settings::read_long_long(file_content, "wfm_config_index=");
            settings->squelch = std::app_settings::read_long_long(file_content, "squelch=");

            rc = SETTINGS_OK;
        } else
            rc = SETTINGS_UNABLE_TO_LOAD;
    } else
        rc = SETTINGS_DISABLED;
    return (rc);
}

int app_settings::save(std::string application, AppSettings* settings) {
    if (portapack::persistent_memory::save_app_settings()) {
        file_path = folder + "/" + application + ".ini";
        make_new_directory(folder);

        auto error = settings_file.create(file_path);
        if (!error.is_valid()) {
            // Save common setting
            settings_file.write_line("baseband_bandwidth=" + to_string_dec_uint(portapack::receiver_model.baseband_bandwidth()));
            settings_file.write_line("channel_bandwidth=" + to_string_dec_uint(portapack::transmitter_model.channel_bandwidth()));
            settings_file.write_line("lna=" + to_string_dec_uint(portapack::receiver_model.lna()));
            settings_file.write_line("rx_amp=" + to_string_dec_uint(portapack::receiver_model.rf_amp()));
            settings_file.write_line("sampling_rate=" + to_string_dec_uint(portapack::receiver_model.sampling_rate()));
            settings_file.write_line("tx_amp=" + to_string_dec_uint(portapack::transmitter_model.rf_amp()));
            settings_file.write_line("tx_gain=" + to_string_dec_uint(portapack::transmitter_model.tx_gain()));
            settings_file.write_line("vga=" + to_string_dec_uint(portapack::receiver_model.vga()));
            // Save other settings from struct
            settings_file.write_line("rx_frequency=" + to_string_dec_uint(settings->rx_frequency));
            settings_file.write_line("tx_frequency=" + to_string_dec_uint(settings->tx_frequency));
            settings_file.write_line("step=" + to_string_dec_uint(settings->step));
            settings_file.write_line("modulation=" + to_string_dec_uint(settings->modulation));
            settings_file.write_line("am_config_index=" + to_string_dec_uint(settings->am_config_index));
            settings_file.write_line("nbfm_config_index=" + to_string_dec_uint(settings->nbfm_config_index));
            settings_file.write_line("wfm_config_index=" + to_string_dec_uint(settings->wfm_config_index));
            settings_file.write_line("squelch=" + to_string_dec_uint(settings->squelch));

            rc = SETTINGS_OK;
        } else
            rc = SETTINGS_UNABLE_TO_SAVE;
    } else
        rc = SETTINGS_DISABLED;
    return (rc);
}

long long int app_settings::read_long_long(char* file_content, const char* setting_text) {
    auto position = strstr(file_content, (char*)setting_text);
    if (position) {
        position += strlen((char*)setting_text);
        setting_value = strtoll(position, nullptr, 10);
    }
    return (setting_value);
}

} /* namespace std */