uint32_t NDEFPushProtocol::pushPayload(uint8_t *NDEFMessage, uint32_t length)
{
NPP_MESSAGE *nppMessage = (NPP_MESSAGE *) ALLOCATE_HEADER_SPACE(NDEFMessage, NPP_MESSAGE_HDR_LEN);
nppMessage->version = NPP_SUPPORTED_VERSION;
nppMessage->numNDEFEntries = MODIFY_ENDIAN((uint32_t)0x00000001);
nppMessage->actionCode = NPP_ACTION_CODE;
nppMessage->NDEFLength = MODIFY_ENDIAN(length);
/*uint8_t *buf = (uint8_t *) nppMessage;
Serial.println(F("NPP + NDEF Message"));
for (uint16_t i = 0; i < length + NPP_MESSAGE_HDR_LEN; ++i)
{
Serial.print(F("0x"));
Serial.print(buf[i], HEX);
Serial.print(F(" "));
}*/
uint32_t result = _linkLayer->openNPPClientLink();
if(RESULT_OK(result)) //if connection is error-free
{
result = _linkLayer->clientLinkTxData((uint8_t *)nppMessage, length + NPP_MESSAGE_HDR_LEN);
}
return result;
}
uint32_t NDEFMessage::createNDEFShortRecord(uint8_t *&NDEFMessage ,uint8_t payloadLen)
{
//Serial.print("Message: ");
//Serial.println((char *)message);
uint8_t * NDEFMessageHdr = ALLOCATE_HEADER_SPACE(NDEFMessage, NDEF_SHORT_RECORD_MESSAGE_HDR_LEN);
NDEFMessageHdr[0] = NDEF_MESSAGE_BEGIN_FLAG | NDEF_MESSAGE_END_FLAG | NDEF_MESSAGE_SHORT_RECORD | TYPE_FORMAT_MEDIA_TYPE;
NDEFMessageHdr[1] = SHORT_RECORD_TYPE_LEN;
NDEFMessageHdr[2] = payloadLen;
memcpy(&NDEFMessageHdr[3], TYPE_STR, SHORT_RECORD_TYPE_LEN);
//Serial.print("NDEF Message: ");
//Serial.println((char *)NDEFMessage);
NDEFMessage = NDEFMessageHdr;
return (payloadLen + NDEF_SHORT_RECORD_MESSAGE_HDR_LEN);
}
uint32_t SNEP::pushPayload(uint8_t *NDEFMessage, uint32_t length)
{
SNEP_MESSAGE *snepMessage = (SNEP_MESSAGE *) ALLOCATE_HEADER_SPACE(NDEFMessage, SNEP_MESSAGE_HDR_LEN);
snepMessage->version = 0x10;
snepMessage->action = 0x02;
snepMessage->length = MODIFY_ENDIAN(length);
uint32_t result = _linkLayer->openSNEPClientLink();
if(RESULT_OK(result)) //if connection is error-free
{
result = _linkLayer->clientLinkTxData((uint8_t *)snepMessage, length + SNEP_MESSAGE_HDR_LEN);
}
return result;
}
// Transmits a SNEP request to the server. A link must have been established before this function is called
// Arguments: NDEFMessage is the NDEF message to be sent
// length is the length of the NDEF message to be sent
// request[0] is the the SNEP request type and request[1] is the acceptable length if SNEP request type is Get
// Returns the length of the received NDEF message
//why *& as argument?
uint32_t SNEP::transmitPutRequest(uint8_t *NDEFMessage, uint32_t length){
uint32_t result;
//Opening link to server.
result = _linkLayer->openLinkToServer(true);
//if data-link was succesfully established continue, else abort.
if(RESULT_OK(result)){
//If a data-link was established send the request, else abort.
SNEP_PDU *snepRequest;
snepRequest = (SNEP_PDU *) ALLOCATE_HEADER_SPACE(NDEFMessage, SNEP_PDU_HEADER_LEN);
snepRequest -> version = SNEP_SUPPORTED_VERSION;
snepRequest -> type = SNEP_PUT_REQUEST;
snepRequest -> length = length;
//caller must check the result
result = _linkLayer -> transmitToServer((uint8_t *)snepRequest, length + SNEP_PDU_HEADER_LEN, true);
}
return result;
}
