kopia lustrzana https://github.com/sq8vps/vp-digi
113 wiersze
3.4 KiB
C
113 wiersze
3.4 KiB
C
/*
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Copyright 2020-2023 Piotr Wilkon
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This file is part of VP-Digi.
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VP-Digi 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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VP-Digi 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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You should have received a copy of the GNU General Public License
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along with VP-Digi. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef COMMON_H_
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#define COMMON_H_
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#include <stdint.h>
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#include "uart.h"
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#define IS_UPPERCASE_ALPHANUMERIC(x) ((((x) >= '0') && ((x) <= '9')) || (((x) >= 'A') && ((x) <= 'Z')))
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#define IS_NUMBER(x) (((x) >= '0') && ((x) <= '9'))
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#define ABS(x) (((x) > 0) ? (x) : (-x))
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#define CRC32_INIT 0xFFFFFFFF
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struct _GeneralConfig
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{
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uint8_t call[6]; //device callsign
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uint8_t callSsid; //device ssid
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uint8_t dest[7]; //destination address for own beacons. Should be APNV01-0 for VP-Digi, but can be changed. SSID MUST remain 0.
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uint8_t kissMonitor;
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};
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extern struct _GeneralConfig GeneralConfig;
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extern const char versionString[]; //version string
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/**
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* @brief Generate random number from min to max
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* @param[in] min Lower boundary
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* @param[in] max Higher boundary
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* @return Generated number
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*/
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int16_t Random(int16_t min, int16_t max);
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/**
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* @brief Convert string to int
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* @param[in] *str Input string
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* @param[in] len String length or 0 to detect by strlen()
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* @return Converted int
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*/
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int64_t StrToInt(const char *str, uint16_t len);
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///**
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// * @brief Convert AX25 frame to TNC2 (readable) format
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// * @param *from Input AX25 frame
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// * @param len Input frame length
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// * @param *to Destination buffer, will be NULL terminated
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// * @param limit Destination buffer size limit
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// */
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//void ConvertToTNC2(uint8_t *from, uint16_t fromlen, uint8_t *to, uint16_t limit);
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/**
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* @brief Convert AX25 frame to TNC2 (readable) format and send it through available ports
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* @param *from Input AX25 frame
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* @param len Input frame length
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*/
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void SendTNC2(uint8_t *from, uint16_t len);
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/**
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* @brief Calculate CRC32
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* @param[in] crc0 Initial or current CRC value
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* @param[in] *s Input data
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* @param[in] n Input data length
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* @return Calculated CRC32
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*/
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uint32_t Crc32(uint32_t crc0, uint8_t *s, uint64_t n);
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/**
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* @brief Check if callsign is correct and convert it to AX.25 format
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* @param *in Input ASCII callsign
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* @param size Input size, not bigger than 6
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* @param *out Output buffer, exactly 6 bytes
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* @return True if callsign is valid
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*/
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bool ParseCallsign(const char *in, uint16_t size, uint8_t *out);
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/**
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* @brief Check if callsign with SSID is correct and convert it to AX.25 format
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* @param *in Input ASCII callsign with SSID
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* @param size Input size
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* @param *out Output buffer, exactly 6 bytes
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* @param *ssid Output SSID, exactly 1 byte
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* @return True if callsign is valid
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*/
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bool ParseCallsignWithSsid(const char *in, uint16_t size, uint8_t *out, uint8_t *ssid);
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/**
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* @brief Check if SSID is correct and convert it to uint8_t
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* @param *in Input ASCII SSID
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* @param size Input size
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* @param *out Output buffer, exactly 1 byte
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* @return True if SSID is valid
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*/
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bool ParseSsid(const char *in, uint16_t size, uint8_t *out);
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#endif /* COMMON_H_ */
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