LoRaMod refoctoring to ChirpChat

2026-08-01 16:38:06 -04:00 · 2020-03-04 07:51:27 +01:00
parent 7b0e116d4b
commit bedf682ef2
54 changed files with 1265 additions and 1443 deletions
@@ -0,0 +1,94 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2020 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, 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 V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#include "chirpchatmodencoder.h"
+#include "chirpchatmodencodertty.h"
+#include "chirpchatmodencoderascii.h"
+#include "chirpchatmodencoderlora.h"
+
+ChirpChatModEncoder::ChirpChatModEncoder() :
+    m_codingScheme(ChirpChatModSettings::CodingTTY),
+    m_nbSymbolBits(5),
+    m_nbParityBits(1),
+    m_hasCRC(true),
+    m_hasHeader(true)
+{}
+
+ChirpChatModEncoder::~ChirpChatModEncoder()
+{}
+
+void ChirpChatModEncoder::setNbSymbolBits(unsigned int spreadFactor, unsigned int deBits)
+{
+    m_spreadFactor = spreadFactor;
+
+    if (deBits >= spreadFactor) {
+        m_deBits = m_spreadFactor - 1;
+    } else {
+        m_deBits = deBits;
+    }
+
+    m_nbSymbolBits = m_spreadFactor - m_deBits;
+}
+
+void ChirpChatModEncoder::encodeString(const QString& str, std::vector<unsigned short>& symbols)
+{
+    switch (m_codingScheme)
+    {
+    case ChirpChatModSettings::CodingTTY:
+        if (m_nbSymbolBits == 5) {
+            ChirpChatModEncoderTTY::encodeString(str, symbols);
+        }
+        break;
+    case ChirpChatModSettings::CodingASCII:
+        if (m_nbSymbolBits == 7) {
+            ChirpChatModEncoderASCII::encodeString(str, symbols);
+        }
+        break;
+    case ChirpChatModSettings::CodingLoRa:
+        if (m_nbSymbolBits >= 5)
+        {
+            QByteArray bytes = str.toUtf8();
+            encodeBytesLoRa(bytes, symbols);
+        }
+        break;
+    default:
+        break;
+    }
+}
+
+void ChirpChatModEncoder::encodeBytes(const QByteArray& bytes, std::vector<unsigned short>& symbols)
+{
+    switch (m_codingScheme)
+    {
+    case ChirpChatModSettings::CodingLoRa:
+        encodeBytesLoRa(bytes, symbols);
+        break;
+    default:
+        break;
+    };
+}
+
+void ChirpChatModEncoder::encodeBytesLoRa(const QByteArray& bytes, std::vector<unsigned short>& symbols)
+{
+    QByteArray payload(bytes);
+
+    if (m_hasCRC) {
+        ChirpChatModEncoderLoRa::addChecksum(payload);
+    }
+
+    ChirpChatModEncoderLoRa::encodeBytes(payload, symbols, m_nbSymbolBits, m_hasHeader, m_hasCRC, m_nbParityBits);
+}