Yihui Xiong / Mbed 2 deprecated TouchPixel

to colorize a colorful pixel with a simple touch using nfc technology

Dependencies:   Chainable_RGB_LED mbed

use Arch, NFC Shield and Grove - Chainable RGB LED to DIY a touch pixel. Then use an Android with NFC support to colorize it.

The project is on https://github.com/Seeed-Studio/TouchPixel

nfc/llcp.h@0:88960f3eeb2c, 2013-12-27 (annotated)

Committer:
yihui
Date:
Fri Dec 27 01:46:32 2013 +0000
Revision:
0:88960f3eeb2c
initial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:88960f3eeb2c 1
yihui 0:88960f3eeb2c 2 #ifndef __LLCP_H__
yihui 0:88960f3eeb2c 3 #define __LLCP_H__
yihui 0:88960f3eeb2c 4
yihui 0:88960f3eeb2c 5 #include "mac_link.h"
yihui 0:88960f3eeb2c 6
yihui 0:88960f3eeb2c 7 #define LLCP_DEFAULT_TIMEOUT 20000
yihui 0:88960f3eeb2c 8 #define LLCP_DEFAULT_DSAP 0x04
yihui 0:88960f3eeb2c 9 #define LLCP_DEFAULT_SSAP 0x20
yihui 0:88960f3eeb2c 10
yihui 0:88960f3eeb2c 11 class LLCP {
yihui 0:88960f3eeb2c 12 public:
yihui 0:88960f3eeb2c 13 LLCP(PN532Interface &interface) : link(interface) {
yihui 0:88960f3eeb2c 14 headerBuf = link.getHeaderBuffer(&headerBufLen);
yihui 0:88960f3eeb2c 15 ns = 0;
yihui 0:88960f3eeb2c 16 nr = 0;
yihui 0:88960f3eeb2c 17 };
yihui 0:88960f3eeb2c 18
yihui 0:88960f3eeb2c 19 /**
yihui 0:88960f3eeb2c 20 * @brief Actiave PN532 as a target
yihui 0:88960f3eeb2c 21 * @param timeout max time to wait, 0 means no timeout
yihui 0:88960f3eeb2c 22 * @return > 0 success
yihui 0:88960f3eeb2c 23 * = 0 timeout
yihui 0:88960f3eeb2c 24 * < 0 failed
yihui 0:88960f3eeb2c 25 */
yihui 0:88960f3eeb2c 26 int8_t activate(uint16_t timeout = 0);
yihui 0:88960f3eeb2c 27
yihui 0:88960f3eeb2c 28 int8_t waitForConnection(uint16_t timeout = LLCP_DEFAULT_TIMEOUT);
yihui 0:88960f3eeb2c 29
yihui 0:88960f3eeb2c 30 int8_t waitForDisconnection(uint16_t timeout = LLCP_DEFAULT_TIMEOUT);
yihui 0:88960f3eeb2c 31
yihui 0:88960f3eeb2c 32 int8_t connect(uint16_t timeout = LLCP_DEFAULT_TIMEOUT);
yihui 0:88960f3eeb2c 33
yihui 0:88960f3eeb2c 34 int8_t disconnect(uint16_t timeout = LLCP_DEFAULT_TIMEOUT);
yihui 0:88960f3eeb2c 35
yihui 0:88960f3eeb2c 36 /**
yihui 0:88960f3eeb2c 37 * @brief write a packet, the packet should be less than (255 - 2) bytes
yihui 0:88960f3eeb2c 38 * @param header packet header
yihui 0:88960f3eeb2c 39 * @param hlen length of header
yihui 0:88960f3eeb2c 40 * @param body packet body
yihui 0:88960f3eeb2c 41 * @param blen length of body
yihui 0:88960f3eeb2c 42 * @return true success
yihui 0:88960f3eeb2c 43 * false failed
yihui 0:88960f3eeb2c 44 */
yihui 0:88960f3eeb2c 45 bool write(const uint8_t *header, uint8_t hlen, const uint8_t *body = 0, uint8_t blen = 0);
yihui 0:88960f3eeb2c 46
yihui 0:88960f3eeb2c 47 /**
yihui 0:88960f3eeb2c 48 * @brief read a packet, the packet will be less than (255 - 2) bytes
yihui 0:88960f3eeb2c 49 * @param buf the buffer to contain the packet
yihui 0:88960f3eeb2c 50 * @param len lenght of the buffer
yihui 0:88960f3eeb2c 51 * @return >=0 length of the packet
yihui 0:88960f3eeb2c 52 * <0 failed
yihui 0:88960f3eeb2c 53 */
yihui 0:88960f3eeb2c 54 int16_t read(uint8_t *buf, uint8_t len);
yihui 0:88960f3eeb2c 55
yihui 0:88960f3eeb2c 56 uint8_t *getHeaderBuffer(uint8_t *len) {
yihui 0:88960f3eeb2c 57 uint8_t *buf = link.getHeaderBuffer(len);
yihui 0:88960f3eeb2c 58 len -= 3; // I PDU header has 3 bytes
yihui 0:88960f3eeb2c 59 return buf;
yihui 0:88960f3eeb2c 60 };
yihui 0:88960f3eeb2c 61
yihui 0:88960f3eeb2c 62 private:
yihui 0:88960f3eeb2c 63 MACLink link;
yihui 0:88960f3eeb2c 64 uint8_t mode;
yihui 0:88960f3eeb2c 65 uint8_t ssap;
yihui 0:88960f3eeb2c 66 uint8_t dsap;
yihui 0:88960f3eeb2c 67 uint8_t *headerBuf;
yihui 0:88960f3eeb2c 68 uint8_t headerBufLen;
yihui 0:88960f3eeb2c 69 uint8_t ns; // Number of I PDU Sent
yihui 0:88960f3eeb2c 70 uint8_t nr; // Number of I PDU Received
yihui 0:88960f3eeb2c 71
yihui 0:88960f3eeb2c 72 static uint8_t SYMM_PDU[2];
yihui 0:88960f3eeb2c 73 };
yihui 0:88960f3eeb2c 74
yihui 0:88960f3eeb2c 75 #endif // __LLCP_H__