unleashed-firmware/lib/ST25RFAL002/source/rfal_t1t.c
2020-10-20 14:12:28 +03:00

220 lines
8 KiB
C
Executable file

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