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90 lines
2.8 KiB
90 lines
2.8 KiB
/*********************************************************************************
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*
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* lora_aprs_node_pico is a LoRa APRS KISS modem with additional PE1RXF telemetry
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* capabilities. It runs on a Raspberry Pi Pico.
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*
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* (C)2023 M.T. Konstapel https://meezenest.nl/mees
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*
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* This file is part of lora_aprs_node_pico.
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*
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* lora_aprs_node_pico 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 3 of the License, or
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* (at your option) any later version.
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*
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* lora_aprs_node_pico 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 lora_aprs_node_pico. If not, see <https://www.gnu.org/licenses/>.
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*
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**********************************************************************************/
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#ifndef KISS_H
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#define KISS_H
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <stdarg.h>
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#define FEND 0xC0
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#define FESC 0xDB
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#define TFEND 0xDC
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#define TFESC 0xDD
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#define CMD_UNKNOWN 0xFE
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#define CMD_DATA 0x00
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#define CMD_HARDWARE 0x06
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#define CMD_EXIT_KISS 0xFF
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#define HW_RSSI 0x21
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#define CMD_ERROR 0x90
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#define ERROR_INITRADIO 0x01
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#define ERROR_TXFAILED 0x02
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#define ERROR_QUEUE_FULL 0x04
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struct aprs_frame {
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uint8_t source_address[10];
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uint8_t digi_path[255];
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uint8_t data_field[255];
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uint8_t message[255];
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uint8_t digis[10][10];
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uint8_t acknowledge_number[255];
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bool acknowledge_request = false;
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uint16_t server_command = 0;
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uint16_t number_of_digipeaters = 0;
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uint8_t valid_apsr_data = false;
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};
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struct ax25_frame {
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uint8_t complete[512];
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uint16_t lenght = 0;
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uint8_t encoded_kiss_frame[512];
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uint8_t decoded_kiss_frame[512];
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uint16_t kiss_length = 0;
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};
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struct kiss_tx_frame {
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uint8_t source_address[10];
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uint8_t data_field[512];
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uint8_t digis[10][10];
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uint16_t number_of_digipeaters = 0;
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uint8_t lora_string[512];
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uint8_t valid_data = false;
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};
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class KissClass
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{
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public:
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uint16_t EncodeFrame(struct aprs_frame *frame, struct ax25_frame *ax25frame);
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uint16_t DecodeFrame(uint8_t string[], struct kiss_tx_frame *kisstxframe);
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private:
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uint8_t * EncodeCall(uint8_t string[]);
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};
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#endif
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