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//*****************************************************************************
//
// nfc_f.c - contains implementation of NFC Type F (Felica) protocol
//
// Copyright (c) 2014 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2.1.0.12573 of the Tiva Firmware Development Package.
//
//*****************************************************************************
#include <stdbool.h>
#include <stdint.h>
#include "nfclib/nfc_f.h"
#include "nfclib/trf79x0.h"
//*****************************************************************************
//
// NFC ID for TYPE F cards
//
//*****************************************************************************
uint8_t g_ui8NFCID2[8] = {0x01 , 0xFE, 0x88 , 0x77, 0x66 , 0x55, 0x44 , 0x33};
//*****************************************************************************
//
// Pointer to buffer
//
//*****************************************************************************
uint8_t * g_pui8NFC_F_BufferPtr;
//*****************************************************************************
//
// Sens SENSF_REQ (request)
//
//*****************************************************************************
void NFCTypeF_SendSENSF_REQ(void)
{
uint8_t ui8NFC_F_Packet[6];
//
// Length
//
ui8NFC_F_Packet[0] = 0x06;
//
// Command
//
ui8NFC_F_Packet[1] = SENSF_REQ_CMD;
ui8NFC_F_Packet[2] = 0xFF; // System Code (SC) 7:0
ui8NFC_F_Packet[3] = 0xFF; // System Code (SC) 15:8
ui8NFC_F_Packet[4] = 0x00; // Request Code (RC)
ui8NFC_F_Packet[5] = 0x03; // Time Slot Number (TSN) (DP, Table 42, 4 time slots)
TRF79x0WriteFIFO(ui8NFC_F_Packet,CRC_BIT_ENABLE,6);
}
//*****************************************************************************
//
// Send SENSF_RES (response)
//
//*****************************************************************************
void NFCTypeF_SendSENSF_RES(void)
{
uint8_t ui8NFC_F_Packet[18];
uint8_t ui8Offset = 0;
uint8_t ui8Counter = 0;
//
// Length
//
ui8NFC_F_Packet[ui8Offset++] = 0x12;
//
// Command
//
ui8NFC_F_Packet[ui8Offset++] = SENSF_RES_CMD;
for(ui8Counter = 0; ui8Counter < 8; ui8Counter++)
{
ui8NFC_F_Packet[ui8Offset++] = g_ui8NFCID2[ui8Counter];
}
// PAD 0
ui8NFC_F_Packet[ui8Offset++] = 0xC0;
ui8NFC_F_Packet[ui8Offset++] = 0xC1;
// PAD 1
ui8NFC_F_Packet[ui8Offset++] = 0xC2;
ui8NFC_F_Packet[ui8Offset++] = 0xC3;
ui8NFC_F_Packet[ui8Offset++] = 0xC4;
// MRTI CHECK
ui8NFC_F_Packet[ui8Offset++] = 0xC5;
// MRTI UPDATE
ui8NFC_F_Packet[ui8Offset++] = 0xC6;
// PAD2
ui8NFC_F_Packet[ui8Offset++] = 0xC7;
TRF79x0WriteFIFO(ui8NFC_F_Packet,CRC_BIT_ENABLE,ui8Offset);
}
//*****************************************************************************
//
// Process data received in buffer
//
//*****************************************************************************
tStatus NFCTypeF_ProcessReceivedData(uint8_t * pui8RxBuffer)
{
volatile uint8_t ui8CommandLength;
uint8_t ui8Command;
uint8_t ui8Counter;
tStatus eNFCFStatus = STATUS_SUCCESS;
ui8CommandLength = pui8RxBuffer[0];
ui8Command = pui8RxBuffer[1];
// //UARTprintf("NFC_F CMD: %d \n",ui8Command);
if(ui8Command == SENSF_RES_CMD)
{
//
// Store the g_ui8NFCID2
//
for(ui8Counter = 0; ui8Counter < 8; ui8Counter++)
{
g_ui8NFCID2[ui8Counter] = pui8RxBuffer[2+ui8Counter];
}
}
else if(ui8Command == SENSF_REQ_CMD && ui8CommandLength == 0x06 )
{
if(pui8RxBuffer[2] == 0xFF && pui8RxBuffer[3] == 0xFF)
{
// Valid SENSF_REQ received - thus send a SENSF Response
NFCTypeF_SendSENSF_RES();
}
else
eNFCFStatus = STATUS_FAIL;
}
else
{
eNFCFStatus = STATUS_FAIL;
}
return eNFCFStatus;
}
//*****************************************************************************
//
// Return the NFCID
//
//*****************************************************************************
uint8_t * NFCTypeF_GetNFCID2(void)
{
return g_ui8NFCID2;
}
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