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https://github.com/eried/portapack-mayhem.git
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95f7eda9c5
Several old bugs squashed. On the APRS side, most notably, SSID numbers where shifted left twice, instead of once, and bits 5,6 where not properly set. On AX.25 side, the bit stuffing part of the encoder was not placing the zero bit on the right place. Finally, I changed APRS icon from ORANGE to GREEN, since even this may be a simple app, now it's doing its work as intended.
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2017 Furrtek
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "aprs.hpp"
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#include "ax25.hpp"
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#include "portapack_persistent_memory.hpp"
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using namespace ax25;
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namespace aprs {
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void make_aprs_frame(const char * src_address, const uint32_t src_ssid,
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const char * dest_address, const uint32_t dest_ssid,
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const std::string& payload) {
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AX25Frame frame;
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char address[14] = { 0 };
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memcpy(&address[0], dest_address, 6);
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memcpy(&address[7], src_address, 6);
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//euquiq: According to ax.25 doc section 2.2.13.x.x and 2.4.1.2
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// SSID need bits 5.6 set, so later when shifted it will end up being 011xxxx0 (xxxx = SSID number)
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// Notice that if need to signal usage of AX.25 V2.0, (dest_ssid | 112); (MSb will need to be set at the end)
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address[6] = (dest_ssid | 48);
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address[13] = (src_ssid | 48);
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frame.make_ui_frame(address, 0x03, protocol_id_t::NO_LAYER3, payload);
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}
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} /* namespace aprs */
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