Chris Evich / PN532

Generic library for working with PN532-like chips

Fork of PN532 by Seeed

snep.h@11:5b8afec8bee6, 2015-02-04 (annotated)

Committer:
r4z0r7o3
Date:
Wed Feb 04 19:26:03 2015 +0000
Revision:
11:5b8afec8bee6
Parent:
6:418ee8924317 
Fix missing space in tag print()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 3:4189a10038e6 1
yihui 3:4189a10038e6 2
yihui 3:4189a10038e6 3 #ifndef __SNEP_H__
yihui 3:4189a10038e6 4 #define __SNEP_H__
yihui 3:4189a10038e6 5
yihui 3:4189a10038e6 6 #include "llcp.h"
yihui 3:4189a10038e6 7
yihui 3:4189a10038e6 8 #define SNEP_DEFAULT_VERSION 0x10 // Major: 1, Minor: 0
yihui 3:4189a10038e6 9
yihui 3:4189a10038e6 10 #define SNEP_REQUEST_PUT 0x02
yihui 3:4189a10038e6 11 #define SNEP_REQUEST_GET 0x01
yihui 3:4189a10038e6 12
yihui 3:4189a10038e6 13 #define SNEP_RESPONSE_SUCCESS 0x81
yihui 3:4189a10038e6 14 #define SNEP_RESPONSE_REJECT 0xFF
yihui 3:4189a10038e6 15
screamer 6:418ee8924317 16 /**
screamer 6:418ee8924317 17 * The SNEP class
screamer 6:418ee8924317 18 */
yihui 3:4189a10038e6 19 class SNEP {
yihui 3:4189a10038e6 20 public:
yihui 3:4189a10038e6 21 SNEP(PN532Interface &interface) : llcp(interface) {
yihui 3:4189a10038e6 22 headerBuf = llcp.getHeaderBuffer(&headerBufLen);
yihui 3:4189a10038e6 23 };
yihui 3:4189a10038e6 24
yihui 3:4189a10038e6 25 /**
screamer 6:418ee8924317 26 * @brief write a SNEP packet, the packet should be less than (255 - 2 - 3) bytes
screamer 6:418ee8924317 27 * @param buf the buffer to contain the packet
screamer 6:418ee8924317 28 * @param len lenght of the buffer
screamer 6:418ee8924317 29 * @param timeout max time to wait, 0 means no timeout
screamer 6:418ee8924317 30 * @return >0 success
screamer 6:418ee8924317 31 * =0 timeout
screamer 6:418ee8924317 32 * <0 failed
screamer 6:418ee8924317 33 */
yihui 3:4189a10038e6 34 int8_t write(const uint8_t *buf, uint8_t len, uint16_t timeout = 0);
yihui 3:4189a10038e6 35
yihui 3:4189a10038e6 36 /**
screamer 6:418ee8924317 37 * @brief read a SNEP packet, the packet will be less than (255 - 2 - 3) bytes
screamer 6:418ee8924317 38 * @param buf the buffer to contain the packet
screamer 6:418ee8924317 39 * @param len lenght of the buffer
screamer 6:418ee8924317 40 * @param timeout max time to wait, 0 means no timeout
screamer 6:418ee8924317 41 * @return >=0 length of the packet
screamer 6:418ee8924317 42 * <0 failed
screamer 6:418ee8924317 43 */
yihui 3:4189a10038e6 44 int16_t read(uint8_t *buf, uint8_t len, uint16_t timeout = 0);
yihui 3:4189a10038e6 45
yihui 3:4189a10038e6 46 private:
yihui 3:4189a10038e6 47 LLCP llcp;
yihui 3:4189a10038e6 48 uint8_t *headerBuf;
yihui 3:4189a10038e6 49 uint8_t headerBufLen;
yihui 3:4189a10038e6 50 };
yihui 3:4189a10038e6 51
yihui 3:4189a10038e6 52 #endif // __SNEP_H__