mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-27 00:09:36 -05:00
72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
|
|
* Copyright (C) 2014 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 "lcr.hpp"
|
|
#include "string_format.hpp"
|
|
|
|
namespace lcr {
|
|
|
|
std::string generate_message(std::string rgsb, std::vector<std::string> litterals, size_t option_ec) {
|
|
const std::string ec_lut[4] = { "A", "J", "N", "S" }; // Eclairage (Auto, Jour, Nuit)
|
|
char eom[3] = { 3, 0, 0 }; // EOM and space for checksum
|
|
uint8_t i;
|
|
std::string lcr_message { 127, 127, 127, 127, 127, 127, 127, 5 }; // 5/15 ? Modem sync and SOM
|
|
char checksum = 0;
|
|
|
|
// Pad litterals to 7 chars (not required ?)
|
|
for (auto & litteral : litterals)
|
|
while (litteral.length() < 7)
|
|
litteral += ' ';
|
|
|
|
// Compose LCR message
|
|
lcr_message += rgsb;
|
|
lcr_message += "PA ";
|
|
|
|
i = 1;
|
|
for (auto & litteral : litterals) {
|
|
lcr_message += "AM=";
|
|
lcr_message += to_string_dec_uint(i, 1);
|
|
lcr_message += " AF=\"";
|
|
lcr_message += litteral;
|
|
lcr_message += "\" CL=0 ";
|
|
i++;
|
|
}
|
|
|
|
lcr_message += "EC=";
|
|
lcr_message += ec_lut[option_ec];
|
|
lcr_message += " SAB=0";
|
|
|
|
// Checksum
|
|
i = 7; // Skip modem sync
|
|
while (lcr_message[i])
|
|
checksum ^= lcr_message[i++];
|
|
checksum ^= eom[0]; // EOM char
|
|
checksum &= 0x7F; // Trim
|
|
eom[1] = checksum;
|
|
|
|
lcr_message += eom;
|
|
|
|
return lcr_message;
|
|
}
|
|
|
|
} /* namespace lcr */
|