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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
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#ifndef __SNEP_H__
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#define __SNEP_H__
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#include "llcp.h"
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#define SNEP_DEFAULT_VERSION 0x10 // Major: 1, Minor: 0
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#define SNEP_REQUEST_PUT 0x02
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#define SNEP_REQUEST_GET 0x01
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#define SNEP_RESPONSE_SUCCESS 0x81
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#define SNEP_RESPONSE_REJECT 0xFF
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class SNEP {
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public:
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SNEP(PN532Interface &interface) : llcp(interface) {
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headerBuf = llcp.getHeaderBuffer(&headerBufLen);
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};
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/**
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* @brief write a SNEP packet, the packet should be less than (255 - 2 - 3) bytes
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* @param buf the buffer to contain the packet
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* @param len lenght of the buffer
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* @param timeout max time to wait, 0 means no timeout
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* @return >0 success
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* =0 timeout
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* <0 failed
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*/
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int8_t write(const uint8_t *buf, uint8_t len, uint16_t timeout = 0);
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/**
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* @brief read a SNEP packet, the packet will be less than (255 - 2 - 3) bytes
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* @param buf the buffer to contain the packet
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* @param len lenght of the buffer
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* @param timeout max time to wait, 0 means no timeout
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* @return >=0 length of the packet
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* <0 failed
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*/
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int16_t read(uint8_t *buf, uint8_t len, uint16_t timeout = 0);
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private:
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LLCP llcp;
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uint8_t *headerBuf;
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uint8_t headerBufLen;
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};
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#endif // __SNEP_H__
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