AppNearMe µNFC stack for the NXP PN532 chip License: You can use the stack free of charge to prototype with mbed; if you want to use the stack with your commercial product, get in touch!
Dependents: IOT_sensor_nfc AppNearMe_MuNFC_PN532_Test p2p_nfc_test NFCMoodLamp ... more
License
You can use the stack free of charge to prototype with mbed; if you want to use the stack with your commercial product, get in touch!
Diff: PN532/TLVList.cpp
- Revision:
- 10:2af578c635cd
- Parent:
- 9:621a03f8d2f3
- Child:
- 11:5be631376e5b
diff -r 621a03f8d2f3 -r 2af578c635cd PN532/TLVList.cpp --- a/PN532/TLVList.cpp Wed Aug 29 11:59:09 2012 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,235 +0,0 @@ -/* - TLVList.cpp - Copyright (c) Donatien Garnier 2012 - donatien.garnier@appnearme.com - http://www.appnearme.com/ -*/ - -#include "TLVList.h" - -#include "munfc/core/fwk.h" -#include "munfc/ndef/appnearme_ndef_tlv.h" - -#include <cstring> //For memcpy, strlen -using std::memcpy; -using std::strlen; - -TLVList::TLVList() : m_tlvList(NULL) -{ - -} - -void TLVList::wrap(tlv_list* payload) -{ - m_tlvList = payload; - m_space = true; - m_type = NONE; -} - - - -/* Getters */ - -/** Iterate to next item - * @return type if next item exists, NONE otherwise - */ -TLVList::TLVType TLVList::getNext() -{ - if(!m_tlvList) - { - return NONE; - } - - m_type = (TLVList::TLVType) appnearme_ndef_tlv_next_type(m_tlvList); //Explicit cast, this is the same enum - switch(m_type) - { - case UINT8: - m_arrayLen = 0; - m_uint8 = appnearme_ndef_tlv_get_uint8(m_tlvList); - break; - case UINT32: - m_arrayLen = 0; - m_uint32 = appnearme_ndef_tlv_get_uint32(m_tlvList); - break; - case UINT8_ARRAY: - //In this order, otherwise would break state-machine - m_arrayLen = appnearme_ndef_tlv_get_array_length(m_tlvList); - m_array = appnearme_ndef_tlv_get_array(m_tlvList); - break; - case STRING: - //In this order, otherwise would break state-machine - m_strLen = appnearme_ndef_tlv_get_string_length(m_tlvList); - m_str = appnearme_ndef_tlv_get_string(m_tlvList); - break; - } - return m_type; -} - -/** Get uint8_t value - * If the current item's type is uint32_t, the value will be masked with 0xFF - * @return uint8_t value OR 0 if the type is incompatible - */ -uint8_t TLVList::getUInt8() -{ - switch(m_type) - { - case UINT8: - return m_uint8; - case UINT32: - return m_uint32 & 0xFF; - default: - return 0; - } -} - -/** Get uint32_t value - * If the current item's type is uint8_t, the value will be casted to uint32_t - * @return uint32_t value OR 0 if the type is incompatible - */ -uint32_t TLVList::getUInt32() -{ - switch(m_type) - { - case UINT32: - return m_uint32; - case UINT8: - return m_uint8 & 0xFF; - default: - return 0; - } -} - -/** Get array length - * @return bytes array length - */ -size_t TLVList::getArrayLength() -{ - switch(m_type) - { - case UINT8_ARRAY: - return m_arrayLen; - default: - return 0; - } -} - -/** Get array - * @param buf pointer to buffer's start - * @param maxLen maximum number of bytes to copy - * @return number of copied bytes - */ -size_t TLVList::getArray(uint8_t* buf, size_t maxLen) -{ - if(m_type != UINT8_ARRAY) - { - return 0; - } - size_t len = MIN(maxLen, m_arrayLen); - memcpy(buf, m_array, len); - return len; -} - -/** Get string length - * @return string length - */ -size_t TLVList::getStringLength() -{ - switch(m_type) - { - case STRING: - return m_strLen; - default: - return 0; - } -} - - -/** Get string - * Copy string to buffer (including null-terminating char) - * @param str pointer to string's start - * @param maxLen maximum number of chars to copy (not including null-terminating char) - * @return number of copied chars - */ -size_t TLVList::getString(char* str, size_t maxLen) -{ - if(m_type != STRING) - { - return 0; - } - size_t len = MIN(maxLen, m_strLen); - memcpy(str, m_str, len); - str[len] = '\0'; //Add null-terminating char - return len; -} - -/* Setters */ - -/** Check whether there is space left in list - * @return true if there is space left, false otherwise - */ -bool TLVList::isSpace() -{ - return m_space; -} - -/** Put uint8_t value - * @param value uint8_t value - * @return true on success, false if there is not enough space in buffer - */ -bool TLVList::putUInt8(uint8_t value) -{ - int res = appnearme_ndef_tlv_put_uint8(m_tlvList, value); - if( !res ) - { - m_space = false; - return false; - } - return true; -} - -/** Put uint32_t value - * @param value uint32_t value - * @return true on success, false if there is not enough space in buffer - */ -bool TLVList::putUInt32(uint32_t value) -{ - int res = appnearme_ndef_tlv_put_uint32(m_tlvList, value); - if( !res ) - { - m_space = false; - return false; - } - return true; -} - -/** Put array - * @param buf pointer to buffer's start - * @param len number of bytes to copy - * @return number of copied bytes - */ -size_t TLVList::putArray(uint8_t* buf, size_t len) -{ - int res = appnearme_ndef_tlv_put_array(m_tlvList, buf, len); - if( !res ) - { - m_space = false; - return 0; - } - return len; -} - -/** Put string - * @param str pointer to null-terminated string's start - * @return number of copied bytes - */ -size_t TLVList::putString(char* str) -{ - int res = appnearme_ndef_tlv_put_string(m_tlvList, str); - if( !res ) - { - m_space = false; - return 0; - } - return strlen(str); -} -