416 lines
19 KiB
C
Executable File
416 lines
19 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_nfc.h
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*
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* \brief RFAL NFC device
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*
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* This module provides the required features to behave as an NFC Poller
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* or Listener device. It grants an easy to use interface for the following
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* activities: Technology Detection, Collision Resolution, Activation,
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* Data Exchange, and Deactivation
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*
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* This layer is influenced by (but not fully aligned with) the NFC Forum
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* specifications, in particular: Activity 2.0 and NCI 2.0
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*
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*
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*
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* \addtogroup RFAL
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* @{
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*
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* \addtogroup RFAL-HL
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* \brief RFAL Higher Layer
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* @{
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*
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* \addtogroup NFC
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* \brief RFAL NFC Device
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* @{
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*
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*/
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#ifndef RFAL_NFC_H
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#define RFAL_NFC_H
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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 "platform.h"
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#include "st_errno.h"
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#include "rfal_rf.h"
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#include "rfal_nfca.h"
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#include "rfal_nfcb.h"
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#include "rfal_nfcf.h"
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#include "rfal_nfcv.h"
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#include "rfal_st25tb.h"
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#include "rfal_nfcDep.h"
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#include "rfal_isoDep.h"
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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_NFC_TECH_NONE 0x0000U /*!< No technology */
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#define RFAL_NFC_POLL_TECH_A 0x0001U /*!< NFC-A technology Flag */
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#define RFAL_NFC_POLL_TECH_B 0x0002U /*!< NFC-B technology Flag */
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#define RFAL_NFC_POLL_TECH_F 0x0004U /*!< NFC-F technology Flag */
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#define RFAL_NFC_POLL_TECH_V 0x0008U /*!< NFC-V technology Flag */
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#define RFAL_NFC_POLL_TECH_AP2P 0x0010U /*!< AP2P technology Flag */
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#define RFAL_NFC_POLL_TECH_ST25TB 0x0020U /*!< ST25TB technology Flag */
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#define RFAL_NFC_LISTEN_TECH_A 0x1000U /*!< NFC-V technology Flag */
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#define RFAL_NFC_LISTEN_TECH_B 0x2000U /*!< NFC-V technology Flag */
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#define RFAL_NFC_LISTEN_TECH_F 0x4000U /*!< NFC-V technology Flag */
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#define RFAL_NFC_LISTEN_TECH_AP2P 0x8000U /*!< NFC-V technology Flag */
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/*
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******************************************************************************
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* GLOBAL MACROS
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******************************************************************************
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*/
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/*! Checks if a device is currently activated */
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#define rfalNfcIsDevActivated( st ) ( ((st)>= RFAL_NFC_STATE_ACTIVATED) && ((st)<RFAL_NFC_STATE_DEACTIVATION) )
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/*! Checks if a device is in discovery */
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#define rfalNfcIsInDiscovery( st ) ( ((st)>= RFAL_NFC_STATE_START_DISCOVERY) && ((st)<RFAL_NFC_STATE_ACTIVATED) )
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/*! Checks if remote device is in Poll mode */
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#define rfalNfcIsRemDevPoller( tp ) ( ((tp)>= RFAL_NFC_POLL_TYPE_NFCA) && ((tp)<=RFAL_NFC_POLL_TYPE_AP2P ) )
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/*! Checks if remote device is in Listen mode */
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#define rfalNfcIsRemDevListener( tp ) ( ((int16_t)(tp)>= (int16_t)RFAL_NFC_LISTEN_TYPE_NFCA) && ((tp)<=RFAL_NFC_LISTEN_TYPE_AP2P) )
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/*
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******************************************************************************
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* GLOBAL ENUMS
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******************************************************************************
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*/
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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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/*! Main state */
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typedef enum{
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RFAL_NFC_STATE_NOTINIT = 0, /*!< Not Initialized state */
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RFAL_NFC_STATE_IDLE = 1, /*!< Initialize state */
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RFAL_NFC_STATE_START_DISCOVERY = 2, /*!< Start Discovery loop state */
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RFAL_NFC_STATE_WAKEUP_MODE = 3, /*!< Wake-Up state */
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RFAL_NFC_STATE_POLL_TECHDETECT = 10, /*!< Technology Detection state */
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RFAL_NFC_STATE_POLL_COLAVOIDANCE = 11, /*!< Collision Avoidance state */
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RFAL_NFC_STATE_POLL_SELECT = 12, /*!< Wait for Selection state */
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RFAL_NFC_STATE_POLL_ACTIVATION = 13, /*!< Activation state */
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RFAL_NFC_STATE_LISTEN_TECHDETECT = 20, /*!< Listen Tech Detect */
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RFAL_NFC_STATE_LISTEN_COLAVOIDANCE = 21, /*!< Listen Collision Avoidance */
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RFAL_NFC_STATE_LISTEN_ACTIVATION = 22, /*!< Listen Activation state */
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RFAL_NFC_STATE_LISTEN_SLEEP = 23, /*!< Listen Sleep state */
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RFAL_NFC_STATE_ACTIVATED = 30, /*!< Activated state */
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RFAL_NFC_STATE_DATAEXCHANGE = 31, /*!< Data Exchange Start state */
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RFAL_NFC_STATE_DATAEXCHANGE_DONE = 33, /*!< Data Exchange terminated */
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RFAL_NFC_STATE_DEACTIVATION = 34 /*!< Deactivation state */
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}rfalNfcState;
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/*! Device type */
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typedef enum{
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RFAL_NFC_LISTEN_TYPE_NFCA = 0, /*!< NFC-A Listener device type */
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RFAL_NFC_LISTEN_TYPE_NFCB = 1, /*!< NFC-B Listener device type */
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RFAL_NFC_LISTEN_TYPE_NFCF = 2, /*!< NFC-F Listener device type */
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RFAL_NFC_LISTEN_TYPE_NFCV = 3, /*!< NFC-V Listener device type */
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RFAL_NFC_LISTEN_TYPE_ST25TB = 4, /*!< ST25TB Listener device type */
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RFAL_NFC_LISTEN_TYPE_AP2P = 5, /*!< AP2P Listener device type */
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RFAL_NFC_POLL_TYPE_NFCA = 10, /*!< NFC-A Poller device type */
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RFAL_NFC_POLL_TYPE_NFCB = 11, /*!< NFC-B Poller device type */
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RFAL_NFC_POLL_TYPE_NFCF = 12, /*!< NFC-F Poller device type */
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RFAL_NFC_POLL_TYPE_NFCV = 13, /*!< NFC-V Poller device type */
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RFAL_NFC_POLL_TYPE_AP2P = 15 /*!< AP2P Poller device type */
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}rfalNfcDevType;
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/*! Device interface */
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typedef enum{
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RFAL_NFC_INTERFACE_RF = 0, /*!< RF Frame interface */
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RFAL_NFC_INTERFACE_ISODEP = 1, /*!< ISO-DEP interface */
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RFAL_NFC_INTERFACE_NFCDEP = 2 /*!< NFC-DEP interface */
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}rfalNfcRfInterface;
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/*! Device struct containing all its details */
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typedef struct{
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rfalNfcDevType type; /*!< Device's type */
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union{ /* PRQA S 0750 # MISRA 19.2 - Members of the union will not be used concurrently, only one technology at a time */
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rfalNfcaListenDevice nfca; /*!< NFC-A Listen Device instance */
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rfalNfcbListenDevice nfcb; /*!< NFC-B Listen Device instance */
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rfalNfcfListenDevice nfcf; /*!< NFC-F Listen Device instance */
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rfalNfcvListenDevice nfcv; /*!< NFC-V Listen Device instance */
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rfalSt25tbListenDevice st25tb; /*!< ST25TB Listen Device instance*/
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}dev; /*!< Device's instance */
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uint8_t *nfcid; /*!< Device's NFCID */
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uint8_t nfcidLen; /*!< Device's NFCID length */
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rfalNfcRfInterface rfInterface; /*!< Device's interface */
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union{ /* PRQA S 0750 # MISRA 19.2 - Members of the union will not be used concurrently, only one protocol at a time */
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rfalIsoDepDevice isoDep; /*!< ISO-DEP instance */
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rfalNfcDepDevice nfcDep; /*!< NFC-DEP instance */
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}proto; /*!< Device's protocol */
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}rfalNfcDevice;
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/*! Discovery parameters */
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typedef struct{
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rfalComplianceMode compMode; /*!< Compliancy mode to be used */
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uint16_t techs2Find; /*!< Technologies to search for */
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uint16_t totalDuration; /*!< Duration of a whole Poll + Listen cycle */
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uint8_t devLimit; /*!< Max number of devices */
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rfalBitRate maxBR; /*!< Max Bit rate to be used for communications */
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rfalBitRate nfcfBR; /*!< Bit rate to poll for NFC-F */
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uint8_t nfcid3[RFAL_NFCDEP_NFCID3_LEN]; /*!< NFCID3 to be used on the ATR_REQ/ATR_RES */
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uint8_t GB[RFAL_NFCDEP_GB_MAX_LEN]; /*!< General bytes to be used on the ATR-REQ */
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uint8_t GBLen; /*!< Length of the General Bytes */
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rfalBitRate ap2pBR; /*!< Bit rate to poll for AP2P */
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rfalLmConfPA lmConfigPA; /*!< Configuration for Passive Listen mode NFC-A */
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rfalLmConfPF lmConfigPF; /*!< Configuration for Passive Listen mode NFC-A */
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void (*notifyCb)( rfalNfcState st ); /*!< Callback to Notify upper layer */
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bool wakeupEnabled; /*!< Enable Wake-Up mode before polling */
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bool wakeupConfigDefault; /*!< Wake-Up mode default configuration */
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rfalWakeUpConfig wakeupConfig; /*!< Wake-Up mode configuration */
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}rfalNfcDiscoverParam;
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/*! Buffer union, only one interface is used at a time */
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typedef union{ /* PRQA S 0750 # MISRA 19.2 - Members of the union will not be used concurrently, only one interface at a time */
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uint8_t rfBuf[RFAL_FEATURE_NFC_RF_BUF_LEN]; /*!< RF buffer */
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rfalIsoDepApduBufFormat isoDepBuf; /*!< ISO-DEP buffer format (with header/prologue) */
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rfalNfcDepPduBufFormat nfcDepBuf; /*!< NFC-DEP buffer format (with header/prologue) */
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}rfalNfcBuffer;
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/*******************************************************************************/
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/*
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******************************************************************************
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* GLOBAL FUNCTION PROTOTYPES
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******************************************************************************
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*/
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/*!
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*****************************************************************************
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* \brief RFAL NFC Worker
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*
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* It runs the internal state machine and runs the RFAL RF worker.
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*****************************************************************************
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*/
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void rfalNfcWorker( void );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Initialize
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*
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* It initializes this module and its dependencies
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* \return ERR_IO : Generic internal error
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcInitialize( void );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Discovery
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*
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* It set the device in Discovery state.
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* In discovery it will Poll and/or Listen for the technologies configured,
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* and perform Wake-up mode if configured to do so.
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*
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* The device list passed on disParams must not be empty.
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* The number of devices on the list is indicated by the devLimit and shall
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* be at >= 1.
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*
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* \param[in] disParams : discovery configuration parameters
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* \return ERR_PARAM : Invalid parameters
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcDiscover( const rfalNfcDiscoverParam *disParams );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Get State
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*
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* It returns the current state
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*
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* \return rfalNfcState : the current state
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*****************************************************************************
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*/
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rfalNfcState rfalNfcGetState( void );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Get Devices Found
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*
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* It returns the location of the device list and the number of
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* devices found.
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*
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* \param[out] devList : device list location
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* \param[out] devCnt : number of devices found
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* Discovery still ongoing
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* \return ERR_PARAM : Invalid parameters
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcGetDevicesFound( rfalNfcDevice **devList, uint8_t *devCnt );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Get Active Device
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*
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* It returns the location of the device current Active device
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*
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* \param[out] dev : device info location
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* No device activated
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* \return ERR_PARAM : Invalid parameters
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcGetActiveDevice( rfalNfcDevice **dev );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Select Device
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*
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* It selects the device to be activated.
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* It shall be called when more than one device has been identified to
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* indiacte which device shall be actived
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*
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* \param[in] devIdx : device index to be activated
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* Not in select state
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* \return ERR_PARAM : Invalid parameters
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcSelect( uint8_t devIdx );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Start Data Exchange
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*
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* After a device has been activated, it starts a data exchange.
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* It handles automatically which interface/protocol to be used and acts accordingly.
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*
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* In Listen mode the first frame/data shall be sent by the Reader/Initiator
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* therefore this method must be called first with txDataLen set to zero
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* to retrieve the rxData and rcvLen locations.
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*
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*
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* \param[in] txData : data to be transmitted
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* \param[in] txDataLen : size of the data to be transmitted
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* \param[out] rxData : location of the received data after operation is completed
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* \param[out] rvdLen : location of thelength of the received data
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* \param[in] fwt : FWT to be used in case of RF interface.
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* If ISO-DEP or NFC-DEP interface is used, this will be ignored
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* \return ERR_PARAM : Invalid parameters
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcDataExchangeStart( uint8_t *txData, uint16_t txDataLen, uint8_t **rxData, uint16_t **rvdLen, uint32_t fwt );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Get Data Exchange Status
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*
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* Gets current Data Exchange status
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*
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* \return ERR_NONE : Transceive done with no error
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* \return ERR_BUSY : Transceive ongoing
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* \return ERR_AGAIN : received one chaining block, copy received data
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* and continue to call this method to retrieve the
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* remaining blocks
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* \return ERR_XXXX : Error occurred
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* \return ERR_TIMEOUT : No response
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* \return ERR_FRAMING : Framing error detected
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* \return ERR_PAR : Parity error detected
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* \return ERR_CRC : CRC error detected
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* \return ERR_LINK_LOSS : Link Loss - External Field is Off
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* \return ERR_RF_COLLISION : Collision detected
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* \return ERR_IO : Internal error
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*****************************************************************************
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*/
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ReturnCode rfalNfcDataExchangeGetStatus( void );
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/*!
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*****************************************************************************
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* \brief RFAL NFC Deactivate
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*
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* It triggers the deactivation procedure to terminate communications with
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* remote device. At the end the field will be turned off.
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*
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* \param[in] discovery : TRUE if after deactivation go back into discovery
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* : FALSE if after deactivation remain in idle
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*
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* \return ERR_WRONG_STATE : Incorrect state for this operation
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* \return ERR_NONE : No error
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*****************************************************************************
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*/
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ReturnCode rfalNfcDeactivate( bool discovery );
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#endif /* RFAL_NFC_H */
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/**
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* @}
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*
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* @}
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*
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* @}
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*/
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