/****************************************************************************** * \attention * *

© COPYRIGHT 2020 STMicroelectronics

* * 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_nfcDep.h * * \author Gustavo Patricio * * \brief Implementation of NFC-DEP protocol * * NFC-DEP is also known as NFCIP - Near Field Communication * Interface and Protocol * * This implementation was based on the following specs: * - NFC Forum Digital 1.1 * - ECMA 340 3rd Edition 2013 * * * \addtogroup RFAL * @{ * * \addtogroup RFAL-AL * \brief RFAL Abstraction Layer * @{ * * \addtogroup NFC-DEP * \brief RFAL NFC-DEP Module * @{ */ #ifndef RFAL_NFCDEP_H_ #define RFAL_NFCDEP_H_ /* ****************************************************************************** * INCLUDES ****************************************************************************** */ #include "platform.h" #include "st_errno.h" #include "rfal_rf.h" /* ****************************************************************************** * ENABLE SWITCH ****************************************************************************** */ #ifndef RFAL_FEATURE_NFC_DEP #define RFAL_FEATURE_NFC_DEP false /*!< NFC-DEP module configuration missing. Disabled by default */ #endif /* If module is disabled remove the need for the user to set lengths */ #if !RFAL_FEATURE_NFC_DEP #undef RFAL_FEATURE_NFC_DEP_BLOCK_MAX_LEN #undef RFAL_FEATURE_NFC_DEP_PDU_MAX_LEN #define RFAL_FEATURE_NFC_DEP_BLOCK_MAX_LEN 1U /*!< NFC-DEP Block/Payload length, set to "none" */ #define RFAL_FEATURE_NFC_DEP_PDU_MAX_LEN 1U /*!< NFC-DEP PDU length, set to "none" */ #endif /* !RFAL_FEATURE_NFC_DEP */ /* ****************************************************************************** * DEFINES ****************************************************************************** */ #define RFAL_NFCDEP_FRAME_SIZE_MAX_LEN 254U /*!< Maximum Frame Size Digital 2.0 Table 90 */ #define RFAL_NFCDEP_DEPREQ_HEADER_LEN 5U /*!< DEP_REQ header length: CMD_TYPE + CMD_CMD + PBF + DID + NAD */ /*! Length NFCIP DEP REQ or RES header (incl LEN) */ #define RFAL_NFCDEP_DEP_HEADER ( RFAL_NFCDEP_LEN_LEN + RFAL_NFCDEP_CMDTYPE_LEN + RFAL_NFCDEP_CMD_LEN + RFAL_NFCDEP_DEP_PFB_LEN ) #define RFAL_NFCDEP_HEADER ( RFAL_NFCDEP_CMDTYPE_LEN + RFAL_NFCDEP_CMD_LEN ) /*!< NFCIP header length */ #define RFAL_NFCDEP_SB_LEN 1U /*!< SB length on NFCIP fram for NFC-A */ #define RFAL_NFCDEP_LEN_LEN 1U /*!< LEN length on NFCIP frame */ #define RFAL_NFCDEP_CMDTYPE_LEN 1U /*!< Length of the cmd type (REQ | RES) on NFCIP frame */ #define RFAL_NFCDEP_CMD_LEN 1U /*!< Length of the cmd on NFCIP frame */ #define RFAL_NFCDEP_DID_LEN 1U /*!< Length of did on NFCIP frame */ #define RFAL_NFCDEP_DEP_PFB_LEN 1U /*!< Length of the PFB field on NFCIP frame */ #define RFAL_NFCDEP_DSL_RLS_LEN_NO_DID (RFAL_NFCDEP_LEN_LEN + RFAL_NFCDEP_CMDTYPE_LEN + RFAL_NFCDEP_CMD_LEN) /*!< Length of DSL_REQ and RLS_REQ with no DID */ #define RFAL_NFCDEP_DSL_RLS_LEN_DID (RFAL_NFCDEP_DSL_RLS_LEN_NO_DID + RFAL_NFCDEP_DID_LEN) /*!< Length of DSL_REQ and RLS_REQ with DID */ #define RFAL_NFCDEP_FS_VAL_MIN 64U /*!< Minimum LR value */ #define RFAL_NFCDEP_LR_VAL_MASK 0x03U /*!< Bit mask for a LR value */ #define RFAL_NFCDEP_PP_LR_MASK 0x30U /*!< Bit mask for LR value in PP byte on a ATR REQ/RES */ #define RFAL_NFCDEP_PP_LR_SHIFT 4U /*!< Position of LR value in PP byte on a ATR REQ/RES */ #define RFAL_NFCDEP_DID_MAX 14U /*!< Max DID value Digital 14.6.2.3 */ #define RFAL_NFCDEP_DID_KEEP 0xFFU /*!< Keep DID value already configured */ #define RFAL_NFCDEP_DID_NO 0x00U /*!< No DID shall be used */ #define RFAL_NFCDEP_NAD_NO 0x00U /*!< No NAD shall be used */ #define RFAL_NFCDEP_OPER_RTOX_REQ_DIS 0x01U /*!< Operation config: RTOX REQ disable */ #define RFAL_NFCDEP_OPER_RTOX_REQ_EN 0x00U /*!< Operation config: RTOX REQ enable */ #define RFAL_NFCDEP_OPER_ATN_DIS 0x00U /*!< Operation config: ATN disable */ #define RFAL_NFCDEP_OPER_ATN_EN 0x02U /*!< Operation config: ATN enable */ #define RFAL_NFCDEP_OPER_EMPTY_DEP_DIS 0x04U /*!< Operation config: empty DEPs disable */ #define RFAL_NFCDEP_OPER_EMPTY_DEP_EN 0x00U /*!< Operation config: empty DEPs enable */ #define RFAL_NFCDEP_OPER_FULL_MI_DIS 0x00U /*!< Operation config: full chaining DEPs disable */ #define RFAL_NFCDEP_OPER_FULL_MI_EN 0x08U /*!< Operation config: full chaining DEPs enable */ #define RFAL_NFCDEP_BRS_MAINTAIN 0xC0U /*!< Value signalling that BR is to be maintained (no PSL) */ #define RFAL_NFCDEP_BRS_Dx_MASK 0x07U /*!< Value signalling that BR is to be maintained (no PSL) */ #define RFAL_NFCDEP_BRS_DSI_POS 3U /*!< Value signalling that BR is to be maintained (no PSL) */ #define RFAL_NFCDEP_WT_DELTA (16U - RFAL_NFCDEP_WT_DELTA_ADJUST) /*!< NFC-DEP dWRT (adjusted) Digital 2.0 B.10 */ #define RFAL_NFCDEP_WT_DELTA_ADJUST 4U /*!< dWRT value adjustment */ #define RFAL_NFCDEP_ATR_REQ_NFCID3_POS 2U /*!< NFCID3 offset in ATR_REQ frame */ #define RFAL_NFCDEP_NFCID3_LEN 10U /*!< NFCID3 Length */ #define RFAL_NFCDEP_LEN_MIN 3U /*!< Minimum length byte LEN value */ #define RFAL_NFCDEP_LEN_MAX 255U /*!< Maximum length byte LEN value */ #define RFAL_NFCDEP_ATRRES_HEADER_LEN 2U /*!< ATR RES Header Len: CmdType: 0xD5 + Cod: 0x01 */ #define RFAL_NFCDEP_ATRRES_MIN_LEN 17U /*!< Minimum length for an ATR RES */ #define RFAL_NFCDEP_ATRRES_MAX_LEN 64U /*!< Maximum length for an ATR RES Digital 1.0 14.6.1 */ #define RFAL_NFCDEP_ATRREQ_MIN_LEN 16U /*!< Minimum length for an ATR REQ */ #define RFAL_NFCDEP_ATRREQ_MAX_LEN RFAL_NFCDEP_ATRRES_MAX_LEN /*!< Maximum length for an ATR REQ Digital 1.0 14.6.1 */ #define RFAL_NFCDEP_GB_MAX_LEN (RFAL_NFCDEP_ATRREQ_MAX_LEN - RFAL_NFCDEP_ATRREQ_MIN_LEN) /*!< Maximum length the General Bytes on ATR Digital 1.1 16.6.3 */ #define RFAL_NFCDEP_WT_INI_DEFAULT RFAL_NFCDEP_WT_INI_MAX /*!< WT Initiator default value Digital 1.0 14.6.3.8 */ #define RFAL_NFCDEP_WT_INI_MIN 0U /*!< WT Initiator minimum value Digital 1.0 14.6.3.8 */ #define RFAL_NFCDEP_WT_INI_MAX 14U /*!< WT Initiator maximum value Digital 1.0 14.6.3.8 A.10 */ #define RFAL_NFCDEP_RWT_INI_MAX rfalNfcDepWT2RWT( RFAL_NFCDEP_WT_INI_MAX ) /*!< RWT Initiator maximum value */ #define RFAL_NFCDEP_WT_TRG_MAX_D10 8U /*!< WT target max Digital 1.0 14.6.3.8 A.10 */ #define RFAL_NFCDEP_WT_TRG_MAX_D11 14U /*!< WT target max Digital 1.1 16.6.3.9 A.9 */ #define RFAL_NFCDEP_WT_TRG_MAX_L13 10U /*!< WT target max [LLCP] 1.3 6.2.1 */ #define RFAL_NFCDEP_WT_TRG_MAX RFAL_NFCDEP_WT_TRG_MAX_D11 /*!< WT target max Digital x.x | LLCP x.x */ #define RFAL_NFCDEP_RWT_TRG_MAX rfalNfcDepWT2RWT( RFAL_NFCDEP_WT_TRG_MAX ) /*!< RWT Initiator maximum value */ /*! Maximum Frame Waiting Time = ((256 * 16/fc)*2^FWImax) = ((256*16/fc)*2^14) = (1048576 / 64)/fc = (100000h*64)/fc */ #define RFAL_NFCDEP_MAX_FWT ((uint32_t)1U<<20) #define RFAL_NFCDEP_WT_MASK 0x0FU /*!< Bit mask for the Wait Time value */ #define RFAL_NFCDEP_BR_MASK_106 0x01U /*!< Enable mask bit rate 106 */ #define RFAL_NFCDEP_BR_MASK_212 0x02U /*!< Enable mask bit rate 242 */ #define RFAL_NFCDEP_BR_MASK_424 0x04U /*!< Enable mask bit rate 424 */ /* ****************************************************************************** * GLOBAL MACROS ****************************************************************************** */ #define rfalNfcDepWT2RWT( wt ) ( (uint32_t)1U << (((uint32_t)(wt) & RFAL_NFCDEP_WT_MASK) + 12U) ) /*!< Converts WT value to RWT (1/fc) */ /*! Returns the BRS value from the given bit rate */ #define rfalNfcDepDx2BRS( br ) ( (((uint8_t)(br) & RFAL_NFCDEP_BRS_Dx_MASK) << RFAL_NFCDEP_BRS_DSI_POS) | ((uint8_t)(br) & RFAL_NFCDEP_BRS_Dx_MASK) ) #define rfalNfcDepBRS2DRI( brs ) (uint8_t)( (uint8_t)(brs) & RFAL_NFCDEP_BRS_Dx_MASK ) /*!< Returns the DRI value from the given BRS byte */ #define rfalNfcDepBRS2DSI( brs ) (uint8_t)( ((uint8_t)(brs) >> RFAL_NFCDEP_BRS_DSI_POS) & RFAL_NFCDEP_BRS_Dx_MASK ) /*!< Returns the DSI value from the given BRS byte */ #define rfalNfcDepPP2LR( PPx ) ( ((uint8_t)(PPx) & RFAL_NFCDEP_PP_LR_MASK ) >> RFAL_NFCDEP_PP_LR_SHIFT) /*!< Returns the LR value from the given PPx byte */ #define rfalNfcDepLR2PP( LRx ) ( ((uint8_t)(LRx) << RFAL_NFCDEP_PP_LR_SHIFT) & RFAL_NFCDEP_PP_LR_MASK) /*!< Returns the PP byte with the given LRx value */ /*! Returns the Frame size value from the given LRx value */ #define rfalNfcDepLR2FS( LRx ) (uint16_t)(MIN( (RFAL_NFCDEP_FS_VAL_MIN * ((uint16_t)(LRx) + 1U) ), RFAL_NFCDEP_FRAME_SIZE_MAX_LEN )) /*! * Despite DIGITAL 1.0 14.6.2.1 stating that the last two bytes may filled with * any value, some devices (Samsung Google Nexus) only accept when these are 0 */ #define rfalNfcDepSetNFCID( dst, src, len ) ST_MEMSET( (dst), 0x00, RFAL_NFCDEP_NFCID3_LEN ); \ if( (len) > 0U ) {ST_MEMCPY( (dst), (src), (len) );} /* ****************************************************************************** * GLOBAL ENUMERATIONS ****************************************************************************** */ /*! Enumeration of NFC-DEP bit rate in ATR Digital 1.0 Table 93 and 94 */ enum{ RFAL_NFCDEP_Bx_NO_HIGH_BR = 0x00, /*!< Peer supports no high bit rates */ RFAL_NFCDEP_Bx_08_848 = 0x01, /*!< Peer also supports 848 */ RFAL_NFCDEP_Bx_16_1695 = 0x02, /*!< Peer also supports 1695 */ RFAL_NFCDEP_Bx_32_3390 = 0x04, /*!< Peer also supports 3390 */ RFAL_NFCDEP_Bx_64_6780 = 0x08 /*!< Peer also supports 6780 */ }; /*! Enumeration of NFC-DEP bit rate Dividor in PSL Digital 1.0 Table 100 */ enum{ RFAL_NFCDEP_Dx_01_106 = RFAL_BR_106, /*!< Divisor D = 1 : bit rate = 106 */ RFAL_NFCDEP_Dx_02_212 = RFAL_BR_212, /*!< Divisor D = 2 : bit rate = 212 */ RFAL_NFCDEP_Dx_04_424 = RFAL_BR_424, /*!< Divisor D = 4 : bit rate = 424 */ RFAL_NFCDEP_Dx_08_848 = RFAL_BR_848, /*!< Divisor D = 8 : bit rate = 848 */ RFAL_NFCDEP_Dx_16_1695 = RFAL_BR_1695, /*!< Divisor D = 16 : bit rate = 1695 */ RFAL_NFCDEP_Dx_32_3390 = RFAL_BR_3390, /*!< Divisor D = 32 : bit rate = 3390 */ RFAL_NFCDEP_Dx_64_6780 = RFAL_BR_6780 /*!< Divisor D = 64 : bit rate = 6780 */ }; /*! Enumeration of NFC-DEP Length Reduction (LR) Digital 1.0 Table 91 */ enum{ RFAL_NFCDEP_LR_64 = 0x00, /*!< Maximum payload size is 64 bytes */ RFAL_NFCDEP_LR_128 = 0x01, /*!< Maximum payload size is 128 bytes */ RFAL_NFCDEP_LR_192 = 0x02, /*!< Maximum payload size is 192 bytes */ RFAL_NFCDEP_LR_254 = 0x03 /*!< Maximum payload size is 254 bytes */ }; /* ****************************************************************************** * GLOBAL DATA TYPES ****************************************************************************** */ /*! NFC-DEP callback to check if upper layer has deactivation pending */ typedef bool (* rfalNfcDepDeactCallback)(void); /*! Enumeration of the nfcip communication modes */ typedef enum{ RFAL_NFCDEP_COMM_PASSIVE, /*!< Passive communication mode */ RFAL_NFCDEP_COMM_ACTIVE /*!< Active communication mode */ } rfalNfcDepCommMode; /*! Enumeration of the nfcip roles */ typedef enum{ RFAL_NFCDEP_ROLE_INITIATOR, /*!< Perform as Initiator */ RFAL_NFCDEP_ROLE_TARGET /*!< Perform as Target */ } rfalNfcDepRole; /*! Struct that holds all NFCIP configs */ typedef struct{ rfalNfcDepRole role; /*!< Current NFCIP role */ rfalNfcDepCommMode commMode; /*!< Current NFCIP communication mode */ uint8_t oper; /*!< Operation config similar to NCI 1.0 Table 81 */ uint8_t did; /*!< Current Device ID (DID) */ uint8_t nad; /*!< Current Node Addressing (NAD) */ uint8_t bs; /*!< Bit rate in Sending Direction */ uint8_t br; /*!< Bit rate in Receiving Direction */ uint8_t nfcid[RFAL_NFCDEP_NFCID3_LEN]; /*!< Pointer to the NFCID to be used */ uint8_t nfcidLen; /*!< Length of the given NFCID in nfcid */ uint8_t gb[RFAL_NFCDEP_GB_MAX_LEN]; /*!< Pointer General Bytes (GB) to be used */ uint8_t gbLen; /*!< Length of the given GB in gb */ uint8_t lr; /*!< Length Reduction (LR) to be used */ uint8_t to; /*!< Timeout (TO) to be used */ uint32_t fwt; /*!< Frame Waiting Time (FWT) to be used */ uint32_t dFwt; /*!< Delta Frame Waiting Time (dFWT) to be used */ } rfalNfcDepConfigs; /*! ATR_REQ command Digital 1.1 16.6.2 */ typedef struct { uint8_t CMD1; /*!< Command format 0xD4 */ uint8_t CMD2; /*!< Command Value */ uint8_t NFCID3[RFAL_NFCDEP_NFCID3_LEN]; /*!< NFCID3 value */ uint8_t DID; /*!< DID */ uint8_t BSi; /*!< Sending Bitrate for Initiator */ uint8_t BRi; /*!< Receiving Bitrate for Initiator */ uint8_t PPi; /*!< Optional Parameters presence indicator */ uint8_t GBi[RFAL_NFCDEP_GB_MAX_LEN]; /*!< General Bytes */ } rfalNfcDepAtrReq; /*! ATR_RES response Digital 1.1 16.6.3 */ typedef struct { uint8_t CMD1; /*!< Response Byte 0xD5 */ uint8_t CMD2; /*!< Command Value */ uint8_t NFCID3[RFAL_NFCDEP_NFCID3_LEN]; /*!< NFCID3 value */ uint8_t DID; /*!< DID */ uint8_t BSt; /*!< Sending Bitrate for Initiator */ uint8_t BRt; /*!< Receiving Bitrate for Initiator */ uint8_t TO; /*!< Timeout */ uint8_t PPt; /*!< Optional Parameters presence indicator */ uint8_t GBt[RFAL_NFCDEP_GB_MAX_LEN]; /*!< General Bytes */ } rfalNfcDepAtrRes; /*! Structure of transmit I-PDU Buffer format from caller */ typedef struct { uint8_t prologue[RFAL_NFCDEP_DEPREQ_HEADER_LEN]; /*!< Prologue space for NFC-DEP header*/ uint8_t inf[RFAL_FEATURE_NFC_DEP_BLOCK_MAX_LEN]; /*!< INF | Data area of the buffer */ } rfalNfcDepBufFormat; /*! Structure of APDU Buffer format from caller */ typedef struct { uint8_t prologue[RFAL_NFCDEP_DEPREQ_HEADER_LEN]; /*!< Prologue/SoD buffer */ uint8_t pdu[RFAL_FEATURE_NFC_DEP_PDU_MAX_LEN]; /*!< Complete PDU/Payload buffer */ } rfalNfcDepPduBufFormat; /*! Activation info as Initiator and Target */ typedef union { /* PRQA S 0750 # MISRA 19.2 - Both members of the union will not be used concurrently , device is only initiatior or target a time. No problem can occur. */ struct { rfalNfcDepAtrRes ATR_RES; /*!< ATR RES (Initiator mode) */ uint8_t ATR_RESLen; /*!< ATR RES length (Initiator mode) */ }Target; /*!< Target */ struct { rfalNfcDepAtrReq ATR_REQ; /*!< ATR REQ (Target mode) */ uint8_t ATR_REQLen; /*!< ATR REQ length (Target mode) */ }Initiator; /*!< Initiator */ } rfalNfcDepActivation; /*! NFC-DEP device Info */ typedef struct { uint8_t GBLen; /*!< General Bytes length */ uint8_t WT; /*!< WT to be used (ignored in Listen Mode) */ uint32_t FWT; /*!< FWT to be used (1/fc)(ignored Listen Mode) */ uint32_t dFWT; /*!< Delta FWT to be used (1/fc) */ uint8_t LR; /*!< Length Reduction coding the max payload */ uint16_t FS; /*!< Frame Size */ rfalBitRate DSI; /*!< Bit Rate coding from Initiator to Target */ rfalBitRate DRI; /*!< Bit Rate coding from Target to Initiator */ uint8_t DID; /*!< Device ID (RFAL_NFCDEP_DID_NO if no DID) */ uint8_t NAD; /*!< Node ADdress (RFAL_NFCDEP_NAD_NO if no NAD)*/ } rfalNfcDepInfo; /*! NFC-DEP Device structure */ typedef struct { rfalNfcDepActivation activation; /*!< Activation Info */ rfalNfcDepInfo info; /*!< NFC-DEP device Info */ } rfalNfcDepDevice; /*! NFCIP Protocol structure for P2P Target * * operParam : derives from NFC-Forum NCI NFC-DEP Operation Parameter * NCI 1.1 Table 86: NFC-DEP Operation Parameter * and it's a bit mask composed as: * [ 0000b * | Chain SHALL use max. Transport Data Byte[1b] * | I-PDU with no Transport Data SHALL NOT be sent [1b] * | NFC-DEP Target SHALL NOT send RTOX request [1b] * ] * */ typedef struct{ rfalNfcDepCommMode commMode; /*!< Initiator in Active P2P or Passive P2P*/ uint8_t operParam; /*!< NFC-DEP Operation Parameter */ uint8_t* nfcid; /*!< Initiator's NFCID2 or NFCID3 */ uint8_t nfcidLen; /*!< Initiator's NFCID length (NFCID2/3) */ uint8_t DID; /*!< Initiator's Device ID DID */ uint8_t NAD; /*!< Initiator's Node ID NAD */ uint8_t BS; /*!< Initiator's Bit Rates supported in Tx */ uint8_t BR; /*!< Initiator's Bit Rates supported in Rx */ uint8_t LR; /*!< Initiator's Length reduction */ uint8_t* GB; /*!< Initiator's General Bytes (Gi) */ uint8_t GBLen; /*!< Initiator's General Bytes length */ } rfalNfcDepAtrParam; /*! Structure of parameters to be passed in for nfcDepListenStartActivation */ typedef struct { rfalNfcDepBufFormat *rxBuf; /*!< Receive Buffer struct reference */ uint16_t *rxLen; /*!< Receive INF data length in bytes */ bool *isRxChaining; /*!< Received data is not complete */ rfalNfcDepDevice *nfcDepDev; /*!< NFC-DEP device info */ } rfalNfcDepListenActvParam; /*! NFCIP Protocol structure for P2P Target * * operParam : derives from NFC-Forum NCI NFC-DEP Operation Parameter * NCI 1.1 Table 86: NFC-DEP Operation Parameter * and it's a bit mask composed as: * [ 0000b * | Chain SHALL use max. Transport Data Byte[1b] * | I-PDU with no Transport Data SHALL NOT be sent [1b] * | NFC-DEP Target SHALL NOT send RTOX request [1b] * ] * */ typedef struct{ rfalNfcDepCommMode commMode; /*!< Target in Active P2P or Passive P2P */ uint8_t nfcid3[RFAL_NFCDEP_NFCID3_LEN]; /*!< Target's NFCID3 */ uint8_t bst; /*!< Target's Bit Rates supported in Tx */ uint8_t brt; /*!< Target's Bit Rates supported in Rx */ uint8_t to; /*!< Target's timeout (TO) value */ uint8_t ppt; /*!< Target's Presence optional Params(PPt)*/ uint8_t GBt[RFAL_NFCDEP_GB_MAX_LEN]; /*!< Target's General Bytes (Gt) */ uint8_t GBtLen; /*!< Target's General Bytes length */ uint8_t operParam; /*!< NFC-DEP Operation Parameter */ } rfalNfcDepTargetParam; /*! Structure of parameters to be passed in for nfcDepStartIpduTransceive */ typedef struct { rfalNfcDepBufFormat *txBuf; /*!< Transmit Buffer struct reference */ uint16_t txBufLen; /*!< Transmit Buffer INF field length in bytes */ bool isTxChaining; /*!< Transmit data is not complete */ rfalNfcDepBufFormat *rxBuf; /*!< Receive Buffer struct reference */ uint16_t *rxLen; /*!< Receive INF data length */ bool *isRxChaining; /*!< Received data is not complete */ uint32_t FWT; /*!< FWT to be used (ignored in Listen Mode) */ uint32_t dFWT; /*!< Delta FWT to be used */ uint16_t FSx; /*!< Other device Frame Size (FSD or FSC) */ uint8_t DID; /*!< Device ID (RFAL_ISODEP_NO_DID if no DID) */ } rfalNfcDepTxRxParam; /*! Structure of parameters used on NFC DEP PDU Transceive */ typedef struct { rfalNfcDepPduBufFormat *txBuf; /*!< Transmit Buffer struct reference */ uint16_t txBufLen; /*!< Transmit Buffer INF field length in Bytes*/ rfalNfcDepPduBufFormat *rxBuf; /*!< Receive Buffer struct reference in Bytes */ uint16_t *rxLen; /*!< Received INF data length in Bytes */ rfalNfcDepBufFormat *tmpBuf; /*!< Temp buffer for single PDUs (internal) */ uint32_t FWT; /*!< FWT to be used (ignored in Listen Mode) */ uint32_t dFWT; /*!< Delta FWT to be used */ uint16_t FSx; /*!< Other device Frame Size (FSD or FSC) */ uint8_t DID; /*!< Device ID (RFAL_ISODEP_NO_DID if no DID) */ } rfalNfcDepPduTxRxParam; /* * ***************************************************************************** * GLOBAL VARIABLE DECLARATIONS ****************************************************************************** */ /* ****************************************************************************** * GLOBAL FUNCTION PROTOTYPES ****************************************************************************** */ /*! ****************************************************************************** * \brief NFCIP Initialize * * This method resets all NFC-DEP inner states, counters and context and sets * default values * ****************************************************************************** */ void rfalNfcDepInitialize( void ); /*! ****************************************************************************** * \brief Set deactivating callback * * Sets the deactivating callback so that nfcip layer can check if upper layer * has a deactivation pending, and not perform error recovery upon specific * errors * * \param[in] pFunc : method pointer to deactivation flag check ****************************************************************************** */ void rfalNfcDepSetDeactivatingCallback( rfalNfcDepDeactCallback pFunc ); /*! ****************************************************************************** * \brief Calculate Response Waiting Time * * Calculates the Response Waiting Time (RWT) from the given Waiting Time (WT) * * \param[in] wt : the WT value to calculate RWT * * \return RWT value in 1/fc ****************************************************************************** */ uint32_t rfalNfcDepCalculateRWT( uint8_t wt ); /*! ****************************************************************************** * \brief NFC-DEP Initiator ATR (Attribute Request) * * This method configures the NFC-DEP layer with given parameters and then * sends an ATR to the Target with and checks for a valid response response * * \param[in] param : parameters to initialize and compose the ATR * \param[out] atrRes : location to store the ATR_RES * \param[out] atrResLen : length of the ATR_RES received * * \return ERR_NONE : No error * \return ERR_TIMEOUT : Timeout occurred * \return ERR_PROTO : Protocol error occurred ****************************************************************************** */ ReturnCode rfalNfcDepATR( const rfalNfcDepAtrParam* param, rfalNfcDepAtrRes *atrRes, uint8_t* atrResLen ); /*! ****************************************************************************** * \brief NFC-DEP Initiator PSL (Parameter Selection) * * This method sends a PSL to the Target with the given parameters and checks * for a valid response response * * The parameters must be coded according to Digital 1.1 16.7.1 * * \param[in] BRS : the selected Bit Rates for Initiator and Target * \param[in] FSL : the maximum length of Commands and Responses * * \return ERR_NONE : No error * \return ERR_TIMEOUT : Timeout occurred * \return ERR_PROTO : Protocol error occurred ****************************************************************************** */ ReturnCode rfalNfcDepPSL( uint8_t BRS, uint8_t FSL ); /*! ****************************************************************************** * \brief NFC-DEP Initiator DSL (Deselect) * * This method checks if the NFCIP module is configured as initiator and if * so sends a DSL REQ, waits the target's response and checks it * * In case of performing as target no action is taken * * \return ERR_NONE : No error * \return ERR_TIMEOUT : Timeout occurred * \return ERR_MAX_RERUNS : Timeout occurred * \return ERR_PROTO : Protocol error occurred ****************************************************************************** */ ReturnCode rfalNfcDepDSL( void ); /*! ****************************************************************************** * \brief NFC-DEP Initiator RLS (Release) * * This method checks if the NFCIP module is configured as initiator and if * so sends a RLS REQ, waits target's response and checks it * * In case of performing as target no action is taken * * \return ERR_NONE : No error * \return ERR_TIMEOUT : Timeout occurred * \return ERR_MAX_RERUNS : Timeout occurred * \return ERR_PROTO : Protocol error occurred ****************************************************************************** */ ReturnCode rfalNfcDepRLS( void ); /*! ***************************************************************************** * \brief NFC-DEP Initiator Handle Activation * * This performs a Activation into NFC-DEP layer with the given * parameters. It sends ATR_REQ and if the higher bit rates are supported by * both devices it additionally sends PSL * Once Activated all details of the device are provided on nfcDepDev * * \param[in] param : required parameters to initialize and send ATR_REQ * \param[in] desiredBR : Desired bit rate supported by the Poller * \param[out] nfcDepDev : NFC-DEP information of the activated Listen device * * \return ERR_WRONG_STATE : RFAL not initialized or incorrect mode * \return ERR_PARAM : Invalid parameters * \return ERR_IO : Generic internal error * \return ERR_TIMEOUT : Timeout error * \return ERR_PAR : Parity error detected * \return ERR_CRC : CRC error detected * \return ERR_FRAMING : Framing error detected * \return ERR_PROTO : Protocol error detected * \return ERR_NONE : No error, activation successful ***************************************************************************** */ ReturnCode rfalNfcDepInitiatorHandleActivation( rfalNfcDepAtrParam* param, rfalBitRate desiredBR, rfalNfcDepDevice* nfcDepDev ); /*! ****************************************************************************** * \brief Check if buffer contains valid ATR_REQ * * This method checks if the given ATR_REQ is valid * * * \param[in] buf : buffer holding Initiator's received request * \param[in] bufLen : size of the msg contained on the buf in Bytes * \param[out] nfcid3 : pointer to where the NFCID3 may be outputed, * nfcid3 has NFCF_SENSF_NFCID3_LEN as length * Pass NULL if output parameter not desired * * \return true : Valid ATR_REQ received, the ATR_RES has been computed in txBuf * \return false : Invalid protocol request * ****************************************************************************** */ bool rfalNfcDepIsAtrReq( const uint8_t* buf, uint16_t bufLen, uint8_t* nfcid3 ); /*! ****************************************************************************** * \brief Check is Target has received ATR * * This method checks if the NFCIP module is configured as target and if a * ATR REQ has been received ( whether is in activation or in data exchange) * * \return true : a ATR has already been received * \return false : no ATR has been received ****************************************************************************** */ bool rfalNfcDepTargetRcvdATR( void ); /*! ***************************************************************************** * \brief NFCDEP Start Listen Activation Handling * * Start Activation Handling and setup to receive first frame which may * contain complete or partial DEP-REQ after activation is completed * * Pass in ATR_REQ for NFC-DEP to handle ATR_RES. The Activation Handling * handles ATR_RES and PSL_RES if a PSL_REQ is received * * Activation is completed if PSL_RES is sent or if first I-PDU is received * * \ref rfalNfcDepListenGetActivationStatus() provide status of the * ongoing activation * * \warning nfcDepGetTransceiveStatus() shall be called right after activation * is completed (i.e. rfalNfcDepListenGetActivationStatus() return ERR_NONE) * to check for first received frame. * * \param[in] param : Target parameters to be used * \param[in] atrReq : reference to buffer containing ATR_REQ * \param[in] atrReqLength: Length of ATR_REQ * \param[out] rxParam : references to buffer, length and chaining indication * for first complete LLCP to be received * * \return ERR_NONE : ATR_REQ is valid and activation ongoing * \return ERR_PARAM : ATR_REQ or other params are invalid * \return ERR_LINK_LOSS : Remote Field is turned off ***************************************************************************** */ ReturnCode rfalNfcDepListenStartActivation( const rfalNfcDepTargetParam *param, const uint8_t *atrReq, uint16_t atrReqLength, rfalNfcDepListenActvParam rxParam ); /*! ***************************************************************************** * \brief Get the current NFC-DEP Activation Status * * \return ERR_NONE : Activation has completed successfully * \return ERR_BUSY : Activation is ongoing * \return ERR_LINK_LOSS : Remote Field was turned off ***************************************************************************** */ ReturnCode rfalNfcDepListenGetActivationStatus( void ); /*! ***************************************************************************** * \brief Start Transceive * * Transceives a complete or partial DEP block * * The txBuf contains complete or partial of DEP to be transmitted. * The Prologue field of the I-PDU is handled internally * * If the buffer contains partial LLCP and is not the last block, then * isTxChaining must be set to true * * \param[in] param: reference parameters to be used for the Transceive * * \return ERR_PARAM : Bad request * \return ERR_WRONG_STATE : The module is not in a proper state * \return ERR_NONE : The Transceive request has been started ***************************************************************************** */ ReturnCode rfalNfcDepStartTransceive( const rfalNfcDepTxRxParam *param ); /*! ***************************************************************************** * \brief Return the Transceive status * * Returns the status of the NFC-DEP Transceive * * \warning When the other device is performing chaining once a chained * block is received the error ERR_AGAIN is sent. At this point * caller must handle the received data immediately. * When ERR_AGAIN is returned an ACK has already been sent to * the other device and the next block might be incoming. * If rfalWorker() is called frequently it will place the next * block on the given buffer * * \return ERR_NONE : Transceive has been completed successfully * \return ERR_BUSY : Transceive is ongoing * \return ERR_PROTO : Protocol error occurred * \return ERR_TIMEOUT : Timeout error occurred * \return ERR_SLEEP_REQ : Deselect has been received and responded * \return ERR_NOMEM : The received I-PDU does not fit into the * receive buffer * \return ERR_LINK_LOSS : Communication is lost because Reader/Writer * has turned off its field * \return ERR_AGAIN : received one chaining block, continue to call * this method to retrieve the remaining blocks ***************************************************************************** */ ReturnCode rfalNfcDepGetTransceiveStatus( void ); /*! ***************************************************************************** * \brief Start PDU Transceive * * This method triggers a NFC-DEP Transceive containing a complete PDU * It transmits the given message and handles all protocol retransmitions, * error handling and control messages * * The txBuf contains a complete PDU to be transmitted * The Prologue field will be manipulated by the Transceive * * \warning the txBuf will be modified during the transmission * \warning the maximum RF frame which can be received is limited by param.tmpBuf * * \param[in] param: reference parameters to be used for the Transceive * * \return ERR_PARAM : Bad request * \return ERR_WRONG_STATE : The module is not in a proper state * \return ERR_NONE : The Transceive request has been started ***************************************************************************** */ ReturnCode rfalNfcDepStartPduTransceive( rfalNfcDepPduTxRxParam param ); /*! ***************************************************************************** * \brief Return the PSU Transceive status * * Returns the status of the NFC-DEP PDU Transceive * * * \return ERR_NONE : Transceive has been completed successfully * \return ERR_BUSY : Transceive is ongoing * \return ERR_PROTO : Protocol error occurred * \return ERR_TIMEOUT : Timeout error occurred * \return ERR_SLEEP_REQ : Deselect has been received and responded * \return ERR_NOMEM : The received I-PDU does not fit into the * receive buffer * \return ERR_LINK_LOSS : Communication is lost because Reader/Writer * has turned off its field ***************************************************************************** */ ReturnCode rfalNfcDepGetPduTransceiveStatus( void ); #endif /* RFAL_NFCDEP_H_ */ /** * @} * * @} * * @} */