vp-digi/Inc/common.h

77 wiersze
2.1 KiB
C

/*
This file is part of VP-Digi.
VP-Digi 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 3 of the License, or
(at your option) any later version.
VP-Digi 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 VP-Digi. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef COMMON_H_
#define COMMON_H_
#include <stdint.h>
#define CRC32_INIT 0xFFFFFFFF
uint8_t call[6]; //device callsign
uint8_t callSsid; //device ssid
const uint8_t dest[7]; //constant destination field for own beacons. Should be APNV01-0 for VP-Digi
const uint8_t *versionString; //version string
uint8_t autoReset;
uint32_t autoResetTimer;
uint8_t kissMonitor;
/**
* @brief Generate random number from min to max
* @param[in] min Lower boundary
* @param[in] max Higher boundary
* @return Generated number
*/
int16_t rando(int16_t min, int16_t max);
/**
* @brief Convert string to int
* @param[in] *str Input string
* @param[in] len String length or 0 to detect by strlen()
* @return Converted int
*/
int64_t strToInt(uint8_t *str, uint8_t len);
/**
* @brief Convert AX25 frame to TNC2 (readable) format
* @param[in] *from Input AX25 frame
* @param[in] len Input frame length
* @param[out] *to Destination buffer, will be NULL terminated
*/
void common_toTNC2(uint8_t *from, uint16_t fromlen, uint8_t *to);
/**
* @brief Calculate CRC32
* @param[in] crc0 Initial or current CRC value
* @param[in] *s Input data
* @param[in] n Input data length
* @return Calculated CRC32
*/
uint32_t crc32(uint32_t crc0, uint8_t *s, uint64_t n);
/**
* @brief Send frame to available UARTs and USB in KISS format
* @param[in] *buf Frame buffer
* @param[in] len Frame buffer length
*/
void SendKiss(uint8_t *buf, uint16_t len);
#endif /* COMMON_H_ */