221 lines
8.0 KiB
C
Executable File
221 lines
8.0 KiB
C
Executable File
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/******************************************************************************
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* \attention
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*
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* <h2><center>© COPYRIGHT 2020 STMicroelectronics</center></h2>
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*
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* Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* www.st.com/myliberty
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
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* AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/*
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* PROJECT: ST25R391x firmware
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* Revision:
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* LANGUAGE: ISO C99
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*/
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/*! \file rfal_t1t.c
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*
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* \author Gustavo Patricio
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*
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* \brief Provides NFC-A T1T convenience methods and definitions
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*
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* This module provides an interface to perform as a NFC-A Reader/Writer
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* to handle a Type 1 Tag T1T (Topaz)
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*
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*/
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/*
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******************************************************************************
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* INCLUDES
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******************************************************************************
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*/
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#include "rfal_t1t.h"
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#include "utils.h"
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/*
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******************************************************************************
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* ENABLE SWITCH
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******************************************************************************
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*/
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#ifndef RFAL_FEATURE_T1T
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#define RFAL_FEATURE_T1T false /* T1T module configuration missing. Disabled by default */
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#endif
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#if RFAL_FEATURE_T1T
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/*
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******************************************************************************
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* GLOBAL DEFINES
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******************************************************************************
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*/
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#define RFAL_T1T_DRD_READ (1236U*2U) /*!< DRD for Reads with n=9 => 1236/fc ~= 91 us T1T 1.2 4.4.2 */
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#define RFAL_T1T_DRD_WRITE 36052U /*!< DRD for Write with n=281 => 36052/fc ~= 2659 us T1T 1.2 4.4.2 */
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#define RFAL_T1T_DRD_WRITE_E 70996U /*!< DRD for Write/Erase with n=554 => 70996/fc ~= 5236 us T1T 1.2 4.4.2 */
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#define RFAL_T1T_RID_RES_HR0_VAL 0x10U /*!< HR0 indicating NDEF support Digital 2.0 (Candidate) 11.6.2.1 */
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#define RFAL_T1T_RID_RES_HR0_MASK 0xF0U /*!< HR0 most significant nibble mask */
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/*
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******************************************************************************
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* GLOBAL TYPES
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******************************************************************************
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*/
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/*! NFC-A T1T (Topaz) RID_REQ Digital 1.1 10.6.1 & Table 49 */
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typedef struct
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{
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uint8_t cmd; /*!< T1T cmd: RID */
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uint8_t add; /*!< ADD: undefined value */
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uint8_t data; /*!< DATA: undefined value */
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uint8_t uid[RFAL_T1T_UID_LEN]; /*!< UID-echo: undefined value */
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} rfalT1TRidReq;
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/*! NFC-A T1T (Topaz) RALL_REQ T1T 1.2 Table 4 */
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typedef struct
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{
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uint8_t cmd; /*!< T1T cmd: RALL */
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uint8_t add1; /*!< ADD: 0x00 */
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uint8_t add0; /*!< ADD: 0x00 */
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uint8_t uid[RFAL_T1T_UID_LEN]; /*!< UID */
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} rfalT1TRallReq;
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/*! NFC-A T1T (Topaz) WRITE_REQ T1T 1.2 Table 4 */
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typedef struct
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{
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uint8_t cmd; /*!< T1T cmd: RALL */
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uint8_t add; /*!< ADD */
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uint8_t data; /*!< DAT */
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uint8_t uid[RFAL_T1T_UID_LEN]; /*!< UID */
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} rfalT1TWriteReq;
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/*! NFC-A T1T (Topaz) WRITE_RES T1T 1.2 Table 4 */
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typedef struct
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{
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uint8_t add; /*!< ADD */
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uint8_t data; /*!< DAT */
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} rfalT1TWriteRes;
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/*
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******************************************************************************
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* LOCAL FUNCTION PROTOTYPES
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******************************************************************************
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*/
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/*
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******************************************************************************
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* GLOBAL FUNCTIONS
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******************************************************************************
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*/
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ReturnCode rfalT1TPollerInitialize( void )
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{
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ReturnCode ret;
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EXIT_ON_ERR(ret, rfalSetMode( RFAL_MODE_POLL_NFCA_T1T, RFAL_BR_106, RFAL_BR_106 ) );
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rfalSetErrorHandling( RFAL_ERRORHANDLING_NFC );
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rfalSetGT( RFAL_GT_NONE ); /* T1T should only be initialized after NFC-A mode, therefore the GT has been fulfilled */
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rfalSetFDTListen( RFAL_FDT_LISTEN_NFCA_POLLER ); /* T1T uses NFC-A FDT Listen with n=9 Digital 1.1 10.7.2 */
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rfalSetFDTPoll( RFAL_FDT_POLL_NFCA_T1T_POLLER );
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return ERR_NONE;
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}
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/*******************************************************************************/
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ReturnCode rfalT1TPollerRid( rfalT1TRidRes *ridRes )
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{
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ReturnCode ret;
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rfalT1TRidReq ridReq;
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uint16_t rcvdLen;
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if( ridRes == NULL )
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{
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return ERR_PARAM;
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}
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/* Compute RID command and set Undefined Values to 0x00 Digital 1.1 10.6.1 */
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ST_MEMSET( &ridReq, 0x00, sizeof(rfalT1TRidReq) );
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ridReq.cmd = (uint8_t)RFAL_T1T_CMD_RID;
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EXIT_ON_ERR( ret, rfalTransceiveBlockingTxRx( (uint8_t*)&ridReq, sizeof(rfalT1TRidReq), (uint8_t*)ridRes, sizeof(rfalT1TRidRes), &rcvdLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_T1T_DRD_READ ) );
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/* Check expected RID response length and the HR0 Digital 2.0 (Candidate) 11.6.2.1 */
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if( (rcvdLen != sizeof(rfalT1TRidRes)) || ((ridRes->hr0 & RFAL_T1T_RID_RES_HR0_MASK) != RFAL_T1T_RID_RES_HR0_VAL) )
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{
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return ERR_PROTO;
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}
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return ERR_NONE;
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}
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/*******************************************************************************/
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ReturnCode rfalT1TPollerRall( const uint8_t* uid, uint8_t* rxBuf, uint16_t rxBufLen, uint16_t *rxRcvdLen )
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{
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rfalT1TRallReq rallReq;
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if( (rxBuf == NULL) || (uid == NULL) || (rxRcvdLen == NULL) )
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{
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return ERR_PARAM;
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}
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/* Compute RALL command and set Add to 0x00 */
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ST_MEMSET( &rallReq, 0x00, sizeof(rfalT1TRallReq) );
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rallReq.cmd = (uint8_t)RFAL_T1T_CMD_RALL;
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ST_MEMCPY(rallReq.uid, uid, RFAL_T1T_UID_LEN);
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return rfalTransceiveBlockingTxRx( (uint8_t*)&rallReq, sizeof(rfalT1TRallReq), (uint8_t*)rxBuf, rxBufLen, rxRcvdLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_T1T_DRD_READ );
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}
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/*******************************************************************************/
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ReturnCode rfalT1TPollerWrite( const uint8_t* uid, uint8_t address, uint8_t data )
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{
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rfalT1TWriteReq writeReq;
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rfalT1TWriteRes writeRes;
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uint16_t rxRcvdLen;
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ReturnCode err;
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if( uid == NULL )
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{
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return ERR_PARAM;
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}
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writeReq.cmd = (uint8_t)RFAL_T1T_CMD_WRITE_E;
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writeReq.add = address;
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writeReq.data = data;
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ST_MEMCPY(writeReq.uid, uid, RFAL_T1T_UID_LEN);
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err = rfalTransceiveBlockingTxRx( (uint8_t*)&writeReq, sizeof(rfalT1TWriteReq), (uint8_t*)&writeRes, sizeof(rfalT1TWriteRes), &rxRcvdLen, RFAL_TXRX_FLAGS_DEFAULT, RFAL_T1T_DRD_WRITE_E );
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if( err == ERR_NONE )
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{
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if( (writeReq.add != writeRes.add) || (writeReq.data != writeRes.data) || (rxRcvdLen != sizeof(rfalT1TWriteRes)) )
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{
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return ERR_PROTO;
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}
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}
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return err;
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}
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#endif /* RFAL_FEATURE_T1T */
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