ST Expansion SW Team
RFAL library for the STMicroelectronics X-NUCLEO-NFC05A1
Diff: rfal_rf.cpp
- Revision:
- 0:75fc82583a41
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rfal_rf.cpp Thu Nov 14 14:34:50 2019 +0000
@@ -0,0 +1,3535 @@
+
+/******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2016 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:
+ *
+ * http://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: ST25R3911 firmware
+ * $Revision: $
+ * LANGUAGE: ISO C99
+ */
+
+/*! \file
+ *
+ * \author Gustavo Patricio
+ *
+ * \brief RF Abstraction Layer (RFAL)
+ *
+ * RFAL implementation for ST25R3911
+ */
+
+
+/*
+******************************************************************************
+* INCLUDES
+******************************************************************************
+*/
+
+
+#include "rfal_rf.h"
+
+#include <rfal_rf.h>
+#include "utils.h"
+#include "ST25R3911.h"
+#include "st25r3911_com.h"
+#include "st25r3911_interrupt.h"
+#include "rfal_AnalogConfig.h"
+#include "rfal_iso15693_2.h"
+#include "rfal_chip.h"
+#include "platform1.h"
+#include <stdint.h>
+
+/*
+******************************************************************************
+* GLOBAL TYPES
+******************************************************************************
+*/
+
+
+
+/*! Struct that holds all involved on a Transceive including the context passed by the caller */
+typedef struct{
+ rfalTransceiveState state; /*!< Current transceive state */
+ rfalTransceiveState lastState; /*!< Last transceive state (debug purposes) */
+ ReturnCode status; /*!< Current status/error of the transceive */
+ bool rxse; /*!< Flag indicating if RXE was received with RXS */
+
+ rfalTransceiveContext ctx; /*!< The transceive context given by the caller */
+} rfalTxRx;
+
+
+/*! Struct that holds all context for the Listen Mode */
+typedef struct{
+ rfalLmState state; /*!< Current Listen Mode state */
+ rfalBitRate brDetected; /*!< Last bit rate detected */
+
+ uint8_t* rxBuf; /*!< Location to store incoming data in Listen Mode */
+ uint16_t rxBufLen; /*!< Length of rxBuf */
+ uint16_t* rxLen; /*!< Pointer to write the data length placed into rxBuf */
+ bool dataFlag; /*!< Listen Mode current Data Flag */
+} rfalLm;
+
+
+/*! Struct that holds all context for the Wake-Up Mode */
+typedef struct{
+ rfalWumState state; /*!< Current Wake-Up Mode state */
+ st25r3911WakeUpConfig cfg; /*!< Current Wake-Up Mode context */
+} rfalWum;
+
+
+/*! Struct that holds the timings GT and FDTs */
+typedef struct{
+ uint32_t GT; /*!< GT in 1/fc */
+ uint32_t FDTListen; /*!< FDTListen in 1/fc */
+ uint32_t FDTPoll; /*!< FDTPoll in 1/fc */
+} rfalTimings;
+
+
+/*! Struct that holds the software timers */
+typedef struct{
+ uint32_t GT; /*!< RFAL's GT timer */
+ uint32_t FWT; /*!< FWT/RWT timer for Active P2P*/
+ uint32_t RXE; /*!< Timer between RXS and RXE */
+} rfalTimers;
+
+
+/*! Struct that holds the RFAL's callbacks */
+typedef struct{
+ rfalPreTxRxCallback preTxRx; /*!< RFAL's Pre TxRx callback */
+ rfalPostTxRxCallback postTxRx; /*!< RFAL's Post TxRx callback */
+} rfalCallbacks;
+
+
+/*! Struct that holds counters to control the FIFO on Tx and Rx */
+typedef struct{
+ uint16_t expWL; /*!< The amount of bytes expected to be Tx when a WL interrupt occours */
+ uint16_t bytesTotal; /*!< Total bytes to be transmitted OR the total bytes received */
+ uint16_t bytesWritten;/*!< Amount of bytes already written on FIFO (Tx) OR read (RX) from FIFO and written on rxBuffer*/
+ uint8_t status[ST25R3911_FIFO_STATUS_LEN]; /*!< FIFO Status Registers */
+} rfalFIFO;
+
+
+/*! Struct that holds RFAL's configuration settings */
+typedef struct{
+ uint8_t obsvModeTx; /*!< RFAL's config of the ST25R3911's observation mode while Tx */
+ uint8_t obsvModeRx; /*!< RFAL's config of the ST25R3911's observation mode while Rx */
+ rfalEHandling eHandling; /*!< RFAL's error handling config/mode */
+} rfalConfigs;
+
+
+/*! Struct that holds NFC-F data - Used only inside rfalFelicaPoll() (static to avoid adding it into stack) */
+typedef struct{
+ rfalFeliCaPollRes pollResponses[RFAL_FELICA_POLL_MAX_SLOTS]; /* FeliCa Poll response container for 16 slots */
+} rfalNfcfWorkingData;
+
+
+/*! Struct that holds NFC-V current context
+ *
+ * 96 bytes is FIFO size of ST25R3911, codingBuffer has to be big enough for coping with maximum response size (Manchester coded)
+ * - current implementation expects it be written in one bulk into FIFO
+ * - needs to be above FIFO water level of ST25R3911 (64)
+ * - 65 is actually 1 byte too much, but ~75us in 1of256 another byte is already gone
+ *
+ * - inventory requests responses: 14 bytes
+ * - Max read single block responses: 32 bytes
+ * - Read multiple block responses: variable
+ *
+ * ISO15693 frame: SOF + Flags + Data + CRC + EOF
+ */
+typedef struct{
+ uint8_t codingBuffer[((2 + 255 + 3)*2)];/*!< Coding buffer, length MUST be above 64: [65; ...] */
+ uint16_t nfcvOffset; /*!< Offset needed for ISO15693 coding function */
+ rfalTransceiveContext origCtx; /*!< Context provided by user */
+ uint16_t ignoreBits; /*!< Number of bits at the beginning of a frame to be ignored when decoding */
+} rfalNfcvWorkingData;
+
+
+/*! RFAL instance */
+typedef struct{
+ rfalState state; /*!< RFAL's current state */
+ rfalMode mode; /*!< RFAL's current mode */
+ rfalBitRate txBR; /*!< RFAL's current Tx Bit Rate */
+ rfalBitRate rxBR; /*!< RFAL's current Rx Bit Rate */
+ bool field; /*!< Current field state (On / Off) */
+
+ rfalConfigs conf; /*!< RFAL's configuration settings */
+ rfalTimings timings; /*!< RFAL's timing setting */
+ rfalTxRx TxRx; /*!< RFAL's transceive management */
+ rfalLm Lm; /*!< RFAL's listen mode management */
+ rfalWum wum; /*!< RFAL's Wake-Up mode management */
+
+ rfalFIFO fifo; /*!< RFAL's FIFO management */
+ rfalTimers tmr; /*!< RFAL's Software timers */
+ rfalCallbacks callbacks; /*!< RFAL's callbacks */
+
+#if RFAL_FEATURE_NFCF
+ rfalNfcfWorkingData nfcfData; /*!< RFAL's working data when supporting NFC-F */
+#endif /* RFAL_FEATURE_NFCF */
+
+#if RFAL_FEATURE_NFCV
+ rfalNfcvWorkingData nfcvData; /*!< RFAL's working data when supporting NFC-V */
+#endif /* RFAL_FEATURE_NFCV */
+
+} rfal;
+
+
+
+/*! Felica's command set */
+typedef enum
+{
+ FELICA_CMD_POLLING = 0x00, /*!< Felica Poll/REQC command (aka SENSF_REQ) to identify a card */
+ FELICA_CMD_POLLING_RES = 0x01, /*!< Felica Poll/REQC command (aka SENSF_RES) response */
+ FELICA_CMD_REQUEST_SERVICE = 0x02, /*!< verify the existence of Area and Service */
+ FELICA_CMD_REQUEST_RESPONSE = 0x04, /*!< verify the existence of a card */
+ FELICA_CMD_READ_WITHOUT_ENCRYPTION = 0x06, /*!< read Block Data from a Service that requires no authentication */
+ FELICA_CMD_WRITE_WITHOUT_ENCRYPTION = 0x08, /*!< write Block Data to a Service that requires no authentication */
+ FELICA_CMD_REQUEST_SYSTEM_CODE = 0x0c, /*!< acquire the System Code registered to a card */
+ FELICA_CMD_AUTHENTICATION1 = 0x10, /*!< authenticate a card */
+ FELICA_CMD_AUTHENTICATION2 = 0x12, /*!< allow a card to authenticate a Reader/Writer */
+ FELICA_CMD_READ = 0x14, /*!< read Block Data from a Service that requires authentication */
+ FELICA_CMD_WRITE = 0x16, /*!< write Block Data to a Service that requires authentication */
+}t_rfalFeliCaCmd;
+
+/*
+******************************************************************************
+* GLOBAL DEFINES
+******************************************************************************
+*/
+
+#define RFAL_TIMING_NONE 0x00 /*!< Timing disable | Don't apply */
+
+#define RFAL_FIFO_IN_LT_32 32 /*!< Number of bytes in the FIFO when WL interrupt occurs while Tx ( fifo_lt: 0 ) */
+#define RFAL_FIFO_IN_LT_16 16 /*!< Number of bytes in the FIFO when WL interrupt occurs while Tx ( fifo_lt: 1 ) */
+
+#define RFAL_FIFO_OUT_LT_32 (ST25R3911_FIFO_DEPTH - RFAL_FIFO_IN_LT_32) /*!< Number of bytes sent/out of the FIFO when WL interrupt occurs while Tx ( fifo_lt: 0 ) */
+#define RFAL_FIFO_OUT_LT_16 (ST25R3911_FIFO_DEPTH - RFAL_FIFO_IN_LT_16) /*!< Number of bytes sent/out of the FIFO when WL interrupt occurs while Tx ( fifo_lt: 1 ) */
+
+#define RFAL_FIFO_STATUS_REG1 0 /*!< Location of FIFO status register 1 in local copy */
+#define RFAL_FIFO_STATUS_REG2 1 /*!< Location of FIFO status register 2 in local copy */
+#define RFAL_FIFO_STATUS_INVALID 0xFF /*!< Value indicating that the local FIFO status in invalid|cleared */
+
+#define RFAL_ST25R3911_GPT_MAX_1FC rfalConv8fcTo1fc( 0xFFFF ) /*!< Max GPT steps in 1fc (0xFFFF steps of 8/fc => 0xFFFF * 590ns = 38,7ms) */
+#define RFAL_ST25R3911_NRT_MAX_1FC rfalConv4096fcTo1fc( 0xFFFF ) /*!< Max NRT steps in 1fc (0xFFFF steps of 4096/fc => 0xFFFF * 302us = 19.8s ) */
+#define RFAL_ST25R3911_NRT_DISABLED 0 /*!< NRT Disabled: All 0 No-response timer is not started, wait forever */
+#define RFAL_ST25R3911_MRT_MAX_1FC rfalConv64fcTo1fc( 0x00FF ) /*!< Max MRT steps in 1fc (0x00FF steps of 64/fc => 0x00FF * 4.72us = 1.2ms ) */
+#define RFAL_ST25R3911_MRT_MIN_1FC rfalConv64fcTo1fc( 0x0004 ) /*!< Min MRT steps in 1fc ( 0<=mrt<=4 ; 4 (64/fc) => 0x0004 * 4.72us = 18.88us ) */
+#define RFAL_ST25R3911_GT_MAX_1FC rfalConvMsTo1fc( 5000 ) /*!< Max GT value allowed in 1/fc */
+#define RFAL_ST25R3911_GT_MIN_1FC rfalConvMsTo1fc(RFAL_ST25R3911_SW_TMR_MIN_1MS)/*!< Min GT value allowed in 1/fc */
+#define RFAL_ST25R3911_SW_TMR_MIN_1MS 1 /*!< Min value of a SW timer in ms */
+
+#define RFAL_OBSMODE_DISABLE 0x00 /*!< Observation Mode disabled */
+
+#define RFAL_NFC_RX_INCOMPLETE_LEN 1 /*!< Threshold value where incoming rx may be considered as incomplete in NFC */
+#define RFAL_EMVCO_RX_MAXLEN 4 /*!< Maximum value where EMVCo to apply special error handling */
+#define RFAL_EMVCO_RX_MINLEN 2 /*!< Minimum value where EMVCo to apply special error handling */
+
+#define RFAL_NORXE_TOUT 10 /*!< Timeout to be used on a potential missing RXE - Silicon ST25R3911B Errata #1.1 */
+
+#define RFAL_ISO14443A_SDD_RES_LEN 5 /*!< SDD_RES | Anticollision (UID CLn) length - rfalNfcaSddRes */
+
+#define RFAL_FELICA_POLL_DELAY_TIME 512 /*!< FeliCa Poll Processing time is 2.417 ms ~512*64/fc Digital 1.1 A4 */
+#define RFAL_FELICA_POLL_SLOT_TIME 256 /*!< FeliCa Poll Time Slot duration is 1.208 ms ~256*64/fc Digital 1.1 A4 */
+
+#define RFAL_ISO15693_IGNORE_BITS rfalConvBytesToBits(2) /*!< Ignore collisions before the UID (RES_FLAG + DSFID) */
+
+
+/*******************************************************************************/
+
+#define RFAL_LM_GT rfalConvUsTo1fc(100) /*!< Listen Mode Guard Time enforced (GT - Passive; TIRFG - Active) */
+#define RFAL_FDT_POLL_ADJUSTMENT rfalConvUsTo1fc(80) /*!< FDT Poll adjustment: Time between the expiration of GPT to the actual Tx */
+#define RFAL_FDT_LISTEN_MRT_ADJUSTMENT 64 /*!< MRT jitter adjustment: timeout will be between [ tout ; tout + 64 cycles ] */
+#define RFAL_AP2P_FIELDOFF_TRFW rfalConv8fcTo1fc(64) /*!< Time after TXE and Field Off in AP2P Trfw: 37.76us -> 64 (8/fc) */
+
+
+/*! FWT adjustment:
+ * 64 : NRT jitter between TXE and NRT start */
+#define RFAL_FWT_ADJUSTMENT 64
+
+/*! FWT ISO14443A adjustment:
+ * 512 : Initial 4bit length */
+#define RFAL_FWT_A_ADJUSTMENT 512
+
+/*! FWT ISO14443B adjustment:
+ * 2784 : Adjustment for the SOF and initial byte */
+#define RFAL_FWT_B_ADJUSTMENT 2784
+
+
+/*! FWT FeliCa 212 adjustment:
+ * 1024 : Length of the two Sync bytes at 212kbps */
+#define RFAL_FWT_F_212_ADJUSTMENT 1024
+
+/*! FWT FeliCa 424 adjustment:
+ * 512 : Length of the two Sync bytes at 424kbps */
+#define RFAL_FWT_F_424_ADJUSTMENT 512
+
+
+/*! Time between our field Off and other peer field On : Tadt + (n x Trfw)
+ * Ecma 340 11.1.2 - Tadt: [56.64 , 188.72] us ; n: [0 , 3] ; Trfw = 37.76 us
+ * Should be: 189 + (3*38) = 303us ; we'll use a more relaxed setting: 605 us */
+#define RFAL_AP2P_FIELDON_TADTTRFW rfalConvUsTo1fc(605)
+
+
+/*! FDT Poll adjustment for ISO14443A EMVCo 2.6 4.8.1.3 ; Digital 1.1 6.10
+ *
+ * 276: Time from the rising pulse of the pause of the logic '1' (i.e. the time point to measure the deaftime from),
+ * to the actual end of the EOF sequence (the point where the MRT starts). Please note that the ST25R391x uses the
+ * ISO14443-2 definition where the EOF consists of logic '0' followed by sequence Y.
+ */
+#define RFAL_FDT_LISTEN_A_ADJUSTMENT 276
+
+
+/*! FDT Poll adjustment for ISO14443B EMVCo 2.6 4.8.1.6 ; Digital 1.1 7.9
+ *
+ * 340: Time from the rising edge of the EoS to the starting point of the MRT timer (sometime after the final high
+ * part of the EoS is completed).
+ *
+ * -64: Adjustment for the TR1PUTMIN.
+ * The TR1PUTMIN of the ST25R3911 is 1152/fc (72/fs). The EMVCo test case TB0000 measures the TR1PUTMIN.
+ * It takes the default value of TR1PUTMIN (79/fs) and reduces it by 128/fc in every iteration.
+ * This results in a TR1PUTMIN of 1136/fc (71/fs) for the second iteration. The ST25R3911 sends a NAK because
+ * the TR1PUTMIN of the ST25R3911 (72/fs) is higher than 71/fs.
+ * Therefore the test suite assumes TR1PUTMIN of 1264/fc (79/fs).
+ * The test cases TB340.0 and TB435.0 uses the TR1PUTMIN to send frames too early. In order to correctly
+ * recognise these frames as being sent too early (starting inside reader deaf time), the MRT has to be
+ * increased by at least 64/fc (8/fs).
+ */
+#define RFAL_FDT_LISTEN_B_ADJUSTMENT (340 - 64)
+
+
+
+/*
+******************************************************************************
+* GLOBAL MACROS
+******************************************************************************
+*/
+
+#define rfalCalcNumBytes( nBits ) (uint32_t)( (nBits + 7) / 8 ) /*!< Returns the number of bytes required to fit given the number of bits */
+
+#define rfalTimerStart( timer, time_ms ) timer = platformTimerCreate(time_ms) /*!< Configures and starts the RTOX timer */
+#define rfalTimerisExpired( timer ) platformTimerIsExpired( timer ) /*!< Checks if timer has expired */
+
+#define rfalST25R3911ObsModeDisable() st25r3911WriteTestRegister(0x01, 0x00, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) /*!< Disable ST25R3911 Observation mode */
+#define rfalST25R3911ObsModeTx() st25r3911WriteTestRegister(0x01, gRFAL.conf.obsvModeTx, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) /*!< Enable Observation mode 0x0A CSI: Digital TX modulation signal CSO: none */
+#define rfalST25R3911ObsModeRx() st25r3911WriteTestRegister(0x01, gRFAL.conf.obsvModeRx, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) /*!< Enable Observation mode 0x04 CSI: Digital output of AM channel CSO: Digital output of PM channel */
+
+
+#define rfalCheckDisableObsMode() if(gRFAL.conf.obsvModeRx){ rfalST25R3911ObsModeDisable(); } /*!< Checks if the observation mode is enabled, and applies on ST25R3911 */
+#define rfalCheckEnableObsModeTx() if(gRFAL.conf.obsvModeTx){ rfalST25R3911ObsModeTx(); } /*!< Checks if the observation mode is enabled, and applies on ST25R3911 */
+#define rfalCheckEnableObsModeRx() if(gRFAL.conf.obsvModeRx){ rfalST25R3911ObsModeRx(); } /*!< Checks if the observation mode is enabled, and applies on ST25R3911 */
+
+
+#define rfalGetIncmplBits( FIFOStatus2 ) (( FIFOStatus2 >> 1) & 0x07) /*!< Returns the number of bits from fifo status */
+#define rfalIsIncompleteByteError( error ) ((error >= ERR_INCOMPLETE_BYTE) && (error <= ERR_INCOMPLETE_BYTE_07)) /*!< Checks if given error is a Incomplete error */
+
+#define rfalConvBR2ACBR( b ) (((b+1)<<RFAL_ANALOG_CONFIG_BITRATE_SHIFT) & RFAL_ANALOG_CONFIG_BITRATE_MASK) /*!< Converts ST25R391x Bit rate to Analog Configuration bit rate id */
+
+
+#define rfalIsModeActiveComm( md ) ( (md == RFAL_MODE_POLL_ACTIVE_P2P) || (md == RFAL_MODE_LISTEN_ACTIVE_P2P) ) /*!< Checks if mode md is Active Communication */
+#define rfalIsModePassiveComm( md ) ( !rfalIsModeActiveComm(md) ) /*!< Checks if mode md is Passive Communication*/
+#define rfalIsModePassiveListen( md ) ( (md == RFAL_MODE_LISTEN_NFCA) || (md == RFAL_MODE_LISTEN_NFCB) || (md == RFAL_MODE_LISTEN_NFCF) ) /*!< Checks if mode md is Passive Listen */
+#define rfalIsModePassivePoll( md ) ( rfalIsModePassiveComm(md) && !rfalIsModePassiveListen(md) ) /*!< Checks if mode md is Passive Poll */
+
+/*
+ ******************************************************************************
+ * LOCAL VARIABLES
+ ******************************************************************************
+ */
+
+static rfal gRFAL; /*!< RFAL module instance */
+
+/*
+******************************************************************************
+* LOCAL FUNCTION PROTOTYPES
+******************************************************************************
+*/
+
+static void rfalTransceiveTx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalTransceiveRx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static ReturnCode rfalTransceiveRunBlockingTx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalPrepareTransceive( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalCleanupTransceive( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalErrorHandling( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static ReturnCode rfalRunTransceiveWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static ReturnCode rfalRunListenModeWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalRunWakeUpModeWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+
+static void rfalFIFOStatusUpdate( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static void rfalFIFOStatusClear( void );
+static bool rfalFIFOStatusIsMissingPar( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static bool rfalFIFOStatusIsIncompleteByte( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static uint8_t rfalFIFOStatusGetNumBytes( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+static uint8_t rfalFIFOGetNumIncompleteBits( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 );
+
+
+/*
+******************************************************************************
+* GLOBAL FUNCTIONS
+******************************************************************************
+*/
+
+/*******************************************************************************/
+ReturnCode rfalInitialize( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01,
+ DigitalOut* fieldLED_02, DigitalOut* fieldLED_03,
+ DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+
+ st25r3911InitInterrupts( fieldLED_06 );
+
+ /* Initialize chip */
+ st25r3911Initialize( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Check expected chip: ST25R3911 */
+ if( !st25r3911CheckChipID( NULL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ return ERR_HW_MISMATCH;
+ }
+
+ /*******************************************************************************/
+ /* Apply RF Chip general initialization */
+ rfalSetAnalogConfig( RFAL_ANALOG_CONFIG_TECH_CHIP, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* Set FIFO Water Levels to be used */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_IO_CONF1, (ST25R3911_REG_IO_CONF1_fifo_lt | ST25R3911_REG_IO_CONF1_fifo_lr), (ST25R3911_REG_IO_CONF1_fifo_lt_32bytes | ST25R3911_REG_IO_CONF1_fifo_lr_64bytes), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Always have CRC in FIFO upon reception */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_crc_2_fifo, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable External Field Detector */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable any previous observation mode */
+ rfalST25R3911ObsModeDisable();
+
+ /* Clear FIFO status local copy */
+ rfalFIFOStatusClear();
+
+
+ /*******************************************************************************/
+ /* Debug purposes */
+ /*logSetLevel( LOG_MODULE_DEFAULT, LOG_LEVEL_INFO ); !!!!!!!!!!!!!!! */
+ /* rfalSetObsvMode( 0x0A, 0x04 ); */
+
+ /*******************************************************************************/
+ gRFAL.state = RFAL_STATE_INIT;
+ gRFAL.mode = RFAL_MODE_NONE;
+ gRFAL.field = false;
+
+ /* Set RFAL default configs */
+ gRFAL.conf.obsvModeTx = RFAL_OBSMODE_DISABLE;
+ gRFAL.conf.obsvModeRx = RFAL_OBSMODE_DISABLE;
+ gRFAL.conf.eHandling = RFAL_ERRORHANDLING_NONE;
+
+ /* Transceive set to IDLE */
+ gRFAL.TxRx.lastState = RFAL_TXRX_STATE_IDLE;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_IDLE;
+
+ /* Disable all timings */
+ gRFAL.timings.FDTListen = RFAL_TIMING_NONE;
+ gRFAL.timings.FDTPoll = RFAL_TIMING_NONE;
+ gRFAL.timings.GT = RFAL_TIMING_NONE;
+
+ gRFAL.tmr.GT = RFAL_TIMING_NONE;
+
+ gRFAL.callbacks.preTxRx = NULL;
+ gRFAL.callbacks.postTxRx = NULL;
+
+#if RFAL_FEATURE_NFCV
+ /* Initialize NFC-V Data */
+ gRFAL.nfcvData.ignoreBits = 0;
+#endif /* RFAL_FEATURE_NFCV */
+
+ /* Initialize Listen Mode */
+ gRFAL.Lm.state = RFAL_LM_STATE_NOT_INIT;
+ gRFAL.Lm.brDetected = RFAL_BR_KEEP;
+
+ /* Initialize Wake-Up Mode */
+ gRFAL.wum.state = RFAL_WUM_STATE_NOT_INIT;
+
+
+ /*******************************************************************************/
+ /* Perform Automatic Calibration (if configured to do so). *
+ * Registers set by rfalSetAnalogConfig will tell rfalCalibrate what to perform*/
+ rfalCalibrate( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalCalibrate( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint16_t resValue;
+
+ /* Check if RFAL is not initialized */
+ if( gRFAL.state == RFAL_STATE_IDLE )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /*******************************************************************************/
+ /* Perform ST25R3911 regulators and antenna calibration */
+ /*******************************************************************************/
+
+ /* Automatic regulator adjustment only performed if not set manually on Analog Configs */
+ if( st25r3911CheckReg( ST25R3911_REG_REGULATOR_CONTROL, ST25R3911_REG_REGULATOR_CONTROL_reg_s, 0x00, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ /* Adjust the regulators so that Antenna Calibrate has better Regulator values */
+ st25r3911AdjustRegulators( &resValue, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Automatic Antenna calibration only performed if not set manually on Analog Configs */
+ if( st25r3911CheckReg( ST25R3911_REG_ANT_CAL_CONTROL, ST25R3911_REG_ANT_CAL_CONTROL_trim_s, 0x00, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ st25r3911CalibrateAntenna( (uint8_t*) &resValue, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.5 */
+ /* Always run the command Calibrate Antenna twice */
+ st25r3911CalibrateAntenna( (uint8_t*) &resValue, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ /*******************************************************************************/
+
+ }
+ else
+ {
+ /* If no antenna calibration is performed there is no need to perform second regulator adjustment again */
+ return ERR_NONE;
+ }
+
+ if( st25r3911CheckReg( ST25R3911_REG_REGULATOR_CONTROL, ST25R3911_REG_REGULATOR_CONTROL_reg_s, 0x00, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ /* Adjust the regulators again with the Antenna calibrated */
+ st25r3911AdjustRegulators( &resValue, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalAdjustRegulators( uint16_t* result, SPI *mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ /*******************************************************************************/
+ /* Make use of the Automatic Adjust */
+ st25r3911ClrRegisterBits( ST25R3911_REG_REGULATOR_CONTROL, ST25R3911_REG_REGULATOR_CONTROL_reg_s, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return st25r3911AdjustRegulators( result, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+void rfalSetUpperLayerCallback( rfalUpperLayerCallback pFunc )
+{
+ st25r3911IRQCallbackSet( pFunc );
+}
+
+
+/*******************************************************************************/
+void rfalSetPreTxRxCallback( rfalPreTxRxCallback pFunc )
+{
+ gRFAL.callbacks.preTxRx = pFunc;
+}
+
+
+/*******************************************************************************/
+void rfalSetPostTxRxCallback( rfalPostTxRxCallback pFunc )
+{
+ gRFAL.callbacks.postTxRx = pFunc;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalDeinitialize( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ /* Deinitialize chip */
+ st25r3911Deinitialize(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.state = RFAL_STATE_IDLE;
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+void rfalSetObsvMode( uint8_t txMode, uint8_t rxMode )
+{
+ gRFAL.conf.obsvModeTx = txMode;
+ gRFAL.conf.obsvModeRx = rxMode;
+}
+
+
+/*******************************************************************************/
+void rfalGetObsvMode( uint8_t* txMode, uint8_t* rxMode )
+{
+ if(txMode != NULL)
+ {
+ *txMode = gRFAL.conf.obsvModeTx;
+ }
+
+ if(rxMode != NULL)
+ {
+ *rxMode = gRFAL.conf.obsvModeRx;
+ }
+}
+
+
+/*******************************************************************************/
+void rfalDisableObsvMode( void )
+{
+ gRFAL.conf.obsvModeTx = RFAL_OBSMODE_DISABLE;
+ gRFAL.conf.obsvModeRx = RFAL_OBSMODE_DISABLE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalSetMode( rfalMode mode, rfalBitRate txBR, rfalBitRate rxBR,SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+
+ /* Check if RFAL is not initialized */
+ if( gRFAL.state == RFAL_STATE_IDLE )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /* Check allowed bit rate value */
+ if( (txBR == RFAL_BR_KEEP) || (rxBR == RFAL_BR_KEEP) )
+ {
+ return ERR_PARAM;
+ }
+
+ switch( mode )
+ {
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCA:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable ISO14443A mode */
+ mST25 -> writeRegister(ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_iso14443a, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCA_T1T:
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable Topaz mode */
+ mST25 ->writeRegister( ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_topaz, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCB:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable ISO14443B mode */
+ mST25 -> writeRegister(ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_iso14443b, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set the EGT, SOF, EOF and EOF */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_1,
+ (ST25R3911_REG_ISO14443B_1_mask_egt | ST25R3911_REG_ISO14443B_1_mask_sof | ST25R3911_REG_ISO14443B_1_mask_eof),
+ ( (0<<ST25R3911_REG_ISO14443B_1_shift_egt) | ST25R3911_REG_ISO14443B_1_sof_0_10etu | ST25R3911_REG_ISO14443B_1_sof_1_2etu),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set the minimum TR1, SOF, EOF and EOF12 */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_2,
+ (ST25R3911_REG_ISO14443B_2_mask_tr1 | ST25R3911_REG_ISO14443B_2_no_sof | ST25R3911_REG_ISO14443B_2_no_eof |ST25R3911_REG_ISO14443B_2_eof_12),
+ (ST25R3911_REG_ISO14443B_2_tr1_80fs80fs | ST25R3911_REG_ISO14443B_2_eof_12_10to11etu ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_B_PRIME:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable ISO14443B mode */
+ mST25->writeRegister(ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_iso14443b, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ /* Set the EGT, SOF, EOF and EOF */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_1,
+ (ST25R3911_REG_ISO14443B_1_mask_egt | ST25R3911_REG_ISO14443B_1_mask_sof | ST25R3911_REG_ISO14443B_1_mask_eof),
+ ( (0<<ST25R3911_REG_ISO14443B_1_shift_egt) | ST25R3911_REG_ISO14443B_1_sof_0_10etu | ST25R3911_REG_ISO14443B_1_sof_1_2etu),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set the minimum TR1, EOF and EOF12 */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_2,
+ (ST25R3911_REG_ISO14443B_2_mask_tr1 | ST25R3911_REG_ISO14443B_2_no_sof | ST25R3911_REG_ISO14443B_2_no_eof |ST25R3911_REG_ISO14443B_2_eof_12),
+ (ST25R3911_REG_ISO14443B_2_tr1_80fs80fs | ST25R3911_REG_ISO14443B_2_no_sof | ST25R3911_REG_ISO14443B_2_eof_12_10to12etu ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_B_CTS:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable ISO14443B mode */
+ mST25->writeRegister(ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_iso14443b, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set the EGT, SOF, EOF and EOF */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_1,
+ (ST25R3911_REG_ISO14443B_1_mask_egt | ST25R3911_REG_ISO14443B_1_mask_sof | ST25R3911_REG_ISO14443B_1_mask_eof),
+ ( (0<<ST25R3911_REG_ISO14443B_1_shift_egt) | ST25R3911_REG_ISO14443B_1_sof_0_10etu | ST25R3911_REG_ISO14443B_1_sof_1_2etu),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set the minimum TR1, clear SOF, EOF and EOF12 */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443B_2,
+ (ST25R3911_REG_ISO14443B_2_mask_tr1 | ST25R3911_REG_ISO14443B_2_no_sof | ST25R3911_REG_ISO14443B_2_no_eof |ST25R3911_REG_ISO14443B_2_eof_12),
+ (ST25R3911_REG_ISO14443B_2_tr1_80fs80fs | ST25R3911_REG_ISO14443B_2_no_sof | ST25R3911_REG_ISO14443B_2_no_eof ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCF:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable FeliCa mode */
+ mST25->writeRegister( ST25R3911_REG_MODE, ST25R3911_REG_MODE_om_felica, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCF | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCF | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCV:
+ case RFAL_MODE_POLL_PICOPASS:
+
+ /* Disable wake up mode, if set */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCV | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCV | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_ACTIVE_P2P:
+
+ /* Set NFCIP1 active communication initiator mode and Enable NFC Automatic Response RF Collision Avoidance */
+ mST25->writeRegister(ST25R3911_REG_MODE, (ST25R3911_REG_MODE_targ_init | ST25R3911_REG_MODE_om_nfc | ST25R3911_REG_MODE_nfc_ar),
+ mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set GPT to start after end of TX, as GPT is used in active communication mode to timeout the field switching off */
+ /* The field is turned off 37.76us after the end of the transmission Trfw */
+ st25r3911StartGPTimer_8fcs( rfalConv1fcTo8fc( RFAL_AP2P_FIELDOFF_TRFW ), ST25R3911_REG_GPT_CONTROL_gptc_etx_nfc,
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable External Field Detector */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_LISTEN_ACTIVE_P2P:
+
+ /* Set NFCIP1 active communication initiator mode and Enable NFC Automatic Response RF Collision Avoidance */
+ mST25-> writeRegister(ST25R3911_REG_MODE, (ST25R3911_REG_MODE_targ_targ | ST25R3911_REG_MODE_om_nfcip1_normal_mode | ST25R3911_REG_MODE_nfc_ar),
+ mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set GPT to start after end of TX, as GPT is used in active communication mode to timeout the field switching off */
+ /* The field is turned off 37.76us after the end of the transmission Trfw */
+ st25r3911StartGPTimer_8fcs( rfalConv1fcTo8fc( RFAL_AP2P_FIELDOFF_TRFW ), ST25R3911_REG_GPT_CONTROL_gptc_etx_nfc, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ /* Enable External Field Detector */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for this mode and bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_LISTEN_NFCA:
+ case RFAL_MODE_LISTEN_NFCB:
+ case RFAL_MODE_LISTEN_NFCF:
+ return ERR_NOTSUPP;
+
+ /*******************************************************************************/
+ default:
+ return ERR_NOT_IMPLEMENTED;
+ }
+
+ /* Set state as STATE_MODE_SET only if not initialized yet (PSL) */
+ gRFAL.state = ((gRFAL.state < RFAL_STATE_MODE_SET) ? RFAL_STATE_MODE_SET : gRFAL.state);
+ gRFAL.mode = mode;
+
+ /* Apply the given bit rate */
+ return rfalSetBitRate(txBR, rxBR, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+rfalMode rfalGetMode( void )
+{
+ return gRFAL.mode;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalSetBitRate( rfalBitRate txBR, rfalBitRate rxBR, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+
+ /* Check if RFAL is not initialized */
+ if( gRFAL.state == RFAL_STATE_IDLE )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /* Store the new Bit Rates */
+ gRFAL.txBR = ((txBR == RFAL_BR_KEEP) ? gRFAL.txBR : txBR);
+ gRFAL.rxBR = ((rxBR == RFAL_BR_KEEP) ? gRFAL.rxBR : rxBR);
+
+ /* Update the bitrate reg if not in NFCV mode (streaming) */
+ if( (RFAL_MODE_POLL_NFCV != gRFAL.mode) && (RFAL_MODE_POLL_PICOPASS != gRFAL.mode) )
+ {
+ EXIT_ON_ERR( ret, st25r3911SetBitrate( gRFAL.txBR, gRFAL.rxBR, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+ }
+
+
+ switch( gRFAL.mode )
+ {
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCA:
+ case RFAL_MODE_POLL_NFCA_T1T:
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCA | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCB:
+ case RFAL_MODE_POLL_B_PRIME:
+ case RFAL_MODE_POLL_B_CTS:
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCB | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCF:
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCF | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCF | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_NFCV:
+ case RFAL_MODE_POLL_PICOPASS:
+
+ #if !RFAL_FEATURE_NFCV
+ return ERR_DISABLED;
+ #else
+
+ if( ((gRFAL.rxBR != RFAL_BR_26p48) && (gRFAL.rxBR != RFAL_BR_52p97)) || ((gRFAL.txBR != RFAL_BR_1p66) && (gRFAL.txBR != RFAL_BR_26p48)) )
+ {
+ return ERR_PARAM;
+ }
+
+ {
+ const struct iso15693StreamConfig *stream_config;
+ iso15693PhyConfig_t config;
+
+ config.coding = (( gRFAL.txBR == RFAL_BR_1p66 ) ? ISO15693_VCD_CODING_1_256 : ISO15693_VCD_CODING_1_4);
+ config.fastMode = (( gRFAL.rxBR == RFAL_BR_52p97 ) ? true : false);
+
+ iso15693PhyConfigure(&config, &stream_config);
+ st25r3911StreamConfigure((struct st25r3911StreamConfig*)stream_config, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCV | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_NFCV | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ #endif /* RFAL_FEATURE_NFCV */
+
+
+ /*******************************************************************************/
+ case RFAL_MODE_POLL_ACTIVE_P2P:
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_AP2P | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_POLL | RFAL_ANALOG_CONFIG_TECH_AP2P | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_LISTEN_ACTIVE_P2P:
+
+ /* Set Analog configurations for this bit rate */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | rfalConvBR2ACBR(gRFAL.txBR) | RFAL_ANALOG_CONFIG_TX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | rfalConvBR2ACBR(gRFAL.rxBR) | RFAL_ANALOG_CONFIG_RX ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_MODE_LISTEN_NFCA:
+ case RFAL_MODE_LISTEN_NFCB:
+ case RFAL_MODE_LISTEN_NFCF:
+ case RFAL_MODE_NONE:
+ return ERR_WRONG_STATE;
+
+ /*******************************************************************************/
+ default:
+ return ERR_NOT_IMPLEMENTED;
+ }
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalGetBitRate( rfalBitRate *txBR, rfalBitRate *rxBR )
+{
+ if( (gRFAL.state == RFAL_STATE_IDLE) || (gRFAL.mode == RFAL_MODE_NONE) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ if( txBR != NULL )
+ {
+ *txBR = gRFAL.txBR;
+ }
+
+ if( rxBR != NULL )
+ {
+ *rxBR = gRFAL.rxBR;
+ }
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalSetModulatedRFO( uint8_t rfo, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ mST25->writeRegister( ST25R3911_REG_RFO_AM_ON_LEVEL, rfo, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+uint8_t rfalGetModulatedRFO( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint8_t ret;
+
+ mST25->readRegister(ST25R3911_REG_RFO_AM_ON_LEVEL, &ret, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ret;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalMeasureRF( uint8_t* result, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ st25r3911MeasureRF( result, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+void rfalSetErrorHandling( rfalEHandling eHandling )
+{
+ gRFAL.conf.eHandling = eHandling;
+}
+
+
+/*******************************************************************************/
+rfalEHandling rfalGetErrorHandling( void )
+{
+ return gRFAL.conf.eHandling;
+}
+
+
+/*******************************************************************************/
+void rfalSetFDTPoll( uint32_t FDTPoll )
+{
+ gRFAL.timings.FDTPoll = MIN( FDTPoll, RFAL_ST25R3911_GPT_MAX_1FC );
+}
+
+
+/*******************************************************************************/
+uint32_t rfalGetFDTPoll( void )
+{
+ return gRFAL.timings.FDTPoll;
+}
+
+
+/*******************************************************************************/
+void rfalSetFDTListen( uint32_t FDTListen )
+{
+ gRFAL.timings.FDTListen = MIN( FDTListen, RFAL_ST25R3911_MRT_MAX_1FC);
+}
+
+/*******************************************************************************/
+uint32_t rfalGetFDTListen( void )
+{
+ return gRFAL.timings.FDTListen;
+}
+
+void rfalSetGT( uint32_t GT )
+{
+ gRFAL.timings.GT = MIN( GT, RFAL_ST25R3911_GT_MAX_1FC );
+}
+
+/*******************************************************************************/
+uint32_t rfalGetGT( void )
+{
+ return gRFAL.timings.GT;
+}
+
+/*******************************************************************************/
+bool rfalIsGTExpired( void )//check here the platform time
+{
+ if( gRFAL.tmr.GT != RFAL_TIMING_NONE )
+ {
+ if( !rfalTimerisExpired( gRFAL.tmr.GT ) )
+ {
+ return false;
+ }
+ }
+ return true;
+}
+
+/*******************************************************************************/
+ReturnCode rfalFieldOnAndStartGT( SPI *mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+
+ /* Check if RFAL has been initialized (Oscillator should be running) and also
+ * if a direct register access has been performed and left the Oscillator Off */
+ if( (gRFAL.state < RFAL_STATE_INIT) || !st25r3911CheckReg( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_en, ST25R3911_REG_OP_CONTROL_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ ret = ERR_NONE;
+
+ /*******************************************************************************/
+ /* Perform collision avoidance and turn field On if not already On */
+ if( !gRFAL.field || !( st25r3911CheckReg(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ) )
+ {
+ /* Use Thresholds set by AnalogConfig */
+ ret = st25r3911PerformCollisionAvoidance( ST25R3911_CMD_RESPONSE_RF_COLLISION_0, ST25R3911_THRESHOLD_DO_NOT_SET, ST25R3911_THRESHOLD_DO_NOT_SET, 0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.field = ( st25r3911CheckReg(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+
+ /* Only turn on Receiver and Transmitter if field was successfully turned On */
+ if(gRFAL.field)
+ {
+ st25r3911TxRxOn( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; /* Enable Tx and Rx (Tx is already On) */
+ }
+ }
+
+ /*******************************************************************************/
+ /* Start GT timer in case the GT value is set */
+ if( (gRFAL.timings.GT != RFAL_TIMING_NONE) )
+ {
+ /* Ensure that a SW timer doesn't have a lower value then the minimum */
+ rfalTimerStart( gRFAL.tmr.GT, rfalConv1fcToMs( MAX( (gRFAL.timings.GT), RFAL_ST25R3911_GT_MIN_1FC) ) );
+ }
+
+ return ret;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalFieldOff( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ /* Check whether a TxRx is not yet finished */
+ if( gRFAL.TxRx.state != RFAL_TXRX_STATE_IDLE )
+ {
+ rfalCleanupTransceive(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Disable Tx and Rx */
+ st25r3911TxRxOff( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ gRFAL.field = false;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalStartTransceive( rfalTransceiveContext *ctx,SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint32_t FxTAdj; /* FWT or FDT adjustment calculation */
+
+ /* Ensure that RFAL is already Initialized and the mode has been set */
+ if( (gRFAL.state >= RFAL_STATE_MODE_SET) /*&& (gRFAL.TxRx.state == RFAL_TXRX_STATE_INIT )*/ )
+ {
+ /*******************************************************************************/
+ /* Check whether the field is already On, otherwise no TXE will be received */
+ if( !( st25r3911CheckReg(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ && (!rfalIsModePassiveListen( gRFAL.mode ) && (ctx->txBuf != NULL)) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ gRFAL.TxRx.ctx = *ctx;
+
+ /*******************************************************************************/
+ if( gRFAL.timings.FDTListen != RFAL_TIMING_NONE )
+ {
+ /* Calculate MRT adjustment accordingly to the current mode */
+ FxTAdj = RFAL_FDT_LISTEN_MRT_ADJUSTMENT;
+ if(gRFAL.mode == RFAL_MODE_POLL_NFCA) FxTAdj += RFAL_FDT_LISTEN_A_ADJUSTMENT;
+ else if(gRFAL.mode == RFAL_MODE_POLL_NFCA_T1T) FxTAdj += RFAL_FDT_LISTEN_A_ADJUSTMENT;
+ else if(gRFAL.mode == RFAL_MODE_POLL_NFCB) FxTAdj += RFAL_FDT_LISTEN_B_ADJUSTMENT;
+
+
+ /* Set Minimum FDT(Listen) in which PICC is not allowed to send a response */
+ mST25 -> writeRegister( ST25R3911_REG_MASK_RX_TIMER, rfalConv1fcTo64fc( (FxTAdj > gRFAL.timings.FDTListen) ? RFAL_ST25R3911_MRT_MIN_1FC : (gRFAL.timings.FDTListen - FxTAdj) ), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+ }
+
+ /*******************************************************************************/
+ /* FDT Poll will be loaded in rfalPrepareTransceive() once the previous was expired */
+
+ /*******************************************************************************/
+ if( rfalIsModePassiveComm( gRFAL.mode ) ) /* Passive Comms */
+ {
+ if( (gRFAL.TxRx.ctx.fwt != RFAL_FWT_NONE) && (gRFAL.TxRx.ctx.fwt != 0) )
+ {
+ FxTAdj = RFAL_FWT_ADJUSTMENT;
+ if(gRFAL.mode == RFAL_MODE_POLL_NFCA) FxTAdj += RFAL_FWT_A_ADJUSTMENT;
+ else if(gRFAL.mode == RFAL_MODE_POLL_NFCA_T1T) FxTAdj += RFAL_FWT_A_ADJUSTMENT;
+ else if(gRFAL.mode == RFAL_MODE_POLL_NFCB) FxTAdj += RFAL_FWT_B_ADJUSTMENT;
+ else if(gRFAL.mode == RFAL_MODE_POLL_NFCF)
+ {
+ FxTAdj += ((gRFAL.txBR == RFAL_BR_212) ? RFAL_FWT_F_212_ADJUSTMENT : RFAL_FWT_F_424_ADJUSTMENT );
+ }
+
+ /* Ensure that the given FWT doesn't exceed NRT maximum */
+ gRFAL.TxRx.ctx.fwt = MIN( (gRFAL.TxRx.ctx.fwt + FxTAdj), RFAL_ST25R3911_NRT_MAX_1FC );
+
+ /* Set FWT in the NRT */
+ st25r3911SetNoResponseTime_64fcs( rfalConv1fcTo64fc( gRFAL.TxRx.ctx.fwt ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ /* Disable NRT, no NRE will be triggered, therefore wait endlessly for Rx */
+ st25r3911SetNoResponseTime_64fcs( RFAL_ST25R3911_NRT_DISABLED, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ }
+ else /* Active Comms */
+ {
+ /* Setup NRT timer for rf response RF collision timeout. */
+ st25r3911SetNoResponseTime_64fcs( rfalConv1fcTo64fc(RFAL_AP2P_FIELDON_TADTTRFW), mspiChannel, mST25, gpio_cs, IRQ , fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ /* In Active Mode No Response Timer cannot be used to measure FWT a SW timer is used instead */
+ }
+
+ gRFAL.state = RFAL_STATE_TXRX;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_IDLE;
+ gRFAL.TxRx.status = ERR_BUSY;
+ gRFAL.TxRx.rxse = false;
+
+ #if RFAL_FEATURE_NFCV
+ /*******************************************************************************/
+ if( (RFAL_MODE_POLL_NFCV == gRFAL.mode) || (RFAL_MODE_POLL_PICOPASS == gRFAL.mode) )
+ { /* Exchange receive buffer with internal buffer */
+ gRFAL.nfcvData.origCtx = gRFAL.TxRx.ctx;
+
+ gRFAL.TxRx.ctx.rxBuf = ((gRFAL.nfcvData.origCtx.rxBuf != NULL) ? gRFAL.nfcvData.codingBuffer : NULL);
+ gRFAL.TxRx.ctx.rxBufLen = rfalConvBytesToBits(sizeof(gRFAL.nfcvData.codingBuffer));
+ gRFAL.TxRx.ctx.flags = RFAL_TXRX_FLAGS_CRC_TX_MANUAL
+ | RFAL_TXRX_FLAGS_CRC_RX_KEEP
+ | RFAL_TXRX_FLAGS_NFCIP1_OFF
+ | (gRFAL.nfcvData.origCtx.flags & RFAL_TXRX_FLAGS_AGC_OFF)
+ | RFAL_TXRX_FLAGS_PAR_RX_KEEP
+ | RFAL_TXRX_FLAGS_PAR_TX_NONE;
+ /* In NFCV a transceive with valid txBuf and txBufSize==0 should send first an EOF.
+ In this case avoid below code for going directly into receive. */
+ if (gRFAL.TxRx.ctx.txBuf) return ERR_NONE;
+ }
+ #endif /* RFAL_FEATURE_NFCV */
+
+
+ /*******************************************************************************/
+ /* Check if the Transceive start performing Tx or goes directly to Rx */
+ if( (gRFAL.TxRx.ctx.txBuf == NULL) || (gRFAL.TxRx.ctx.txBufLen == 0) )
+ {
+ /* Disable our field upon a Rx reEnable on AP2P */
+ if( rfalIsModeActiveComm(gRFAL.mode) )
+ {
+ st25r3911ClrRegisterBits((unsigned char)(ST25R3911_REG_OP_CONTROL),(unsigned char)(ST25R3911_REG_OP_CONTROL_tx_en), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Clear FIFO, Clear and Enable the Interrupts */
+ rfalPrepareTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* No Tx done, enable the Receiver */
+ mST25 -> executeCommand( ST25R3911_CMD_UNMASK_RECEIVE_DATA, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Start NRT manually, if FWT = 0 (wait endlessly for Rx) chip will ignore anyhow */
+ mST25 -> executeCommand( ST25R3911_CMD_START_NO_RESPONSE_TIMER, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_IDLE;
+ }
+
+ return ERR_NONE;
+ }
+
+ return ERR_WRONG_STATE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalTransceiveBlockingTx( uint8_t* txBuf, uint16_t txBufLen, uint8_t* rxBuf, uint16_t rxBufLen, uint16_t* actLen, uint32_t flags, uint32_t fwt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ rfalTransceiveContext ctx;
+
+ rfalCreateByteFlagsTxRxContext( ctx, txBuf, txBufLen, rxBuf, rxBufLen, actLen, flags, fwt );
+ EXIT_ON_ERR( ret, rfalStartTransceive( &ctx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+
+ return rfalTransceiveRunBlockingTx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+static ReturnCode rfalTransceiveRunBlockingTx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+
+ do{
+ rfalWorker(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ while( ((ret = rfalGetTransceiveStatus() ) == ERR_BUSY) && rfalIsTransceiveInTx() );
+
+ if( rfalIsTransceiveInRx() )
+ {
+ return ERR_NONE;
+ }
+
+ return ret;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalTransceiveBlockingRx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+
+ do{
+ rfalWorker( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ while( ((ret = rfalGetTransceiveStatus() ) == ERR_BUSY) && rfalIsTransceiveInRx() );
+
+ return ret;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalTransceiveBlockingTxRx( uint8_t* txBuf, uint16_t txBufLen,
+ uint8_t* rxBuf, uint16_t rxBufLen, uint16_t* actLen, uint32_t flags,
+ uint32_t fwt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+
+ EXIT_ON_ERR( ret, rfalTransceiveBlockingTx( txBuf, txBufLen, rxBuf, rxBufLen, actLen, flags, fwt, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+ ret = rfalTransceiveBlockingRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ /* Convert received bits to bytes */
+ if( actLen != NULL )
+ {
+ *actLen = rfalConvBitsToBytes(*actLen);
+ }
+
+ return ret;
+}
+
+
+/*******************************************************************************/
+static ReturnCode rfalRunTransceiveWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if( gRFAL.state == RFAL_STATE_TXRX )
+ {
+ /* Run Tx or Rx state machines */
+ if( rfalIsTransceiveInTx() )
+ {
+ rfalTransceiveTx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return rfalGetTransceiveStatus();
+ }
+ else if( rfalIsTransceiveInRx() )
+ {
+ rfalTransceiveRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return rfalGetTransceiveStatus();
+ }
+ }
+ return ERR_WRONG_STATE;
+}
+
+/*******************************************************************************/
+rfalTransceiveState rfalGetTransceiveState( void )
+{
+ return gRFAL.TxRx.state;
+}
+
+ReturnCode rfalGetTransceiveStatus( void )
+{
+ uint16_t ERR = uint16_t(ERR_BUSY);
+ return ((gRFAL.TxRx.state == RFAL_TXRX_STATE_IDLE) ? gRFAL.TxRx.status : ERR);
+}
+
+
+/*******************************************************************************/
+void rfalWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ switch( gRFAL.state )
+ {
+ case RFAL_STATE_TXRX:
+ rfalRunTransceiveWorker( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ case RFAL_STATE_LM:
+ rfalRunListenModeWorker( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ case RFAL_STATE_WUM:
+ rfalRunWakeUpModeWorker(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+
+ /* Nothing to be done */
+ default:
+ break;
+ }
+}
+
+
+/*******************************************************************************/
+static void rfalErrorHandling( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint8_t fifoBytesToRead;
+ uint8_t reEnRx[] = { ST25R3911_CMD_CLEAR_FIFO, ST25R3911_CMD_UNMASK_RECEIVE_DATA };
+
+
+ fifoBytesToRead = rfalFIFOStatusGetNumBytes(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* EMVCo */
+ /*******************************************************************************/
+ if( gRFAL.conf.eHandling == RFAL_ERRORHANDLING_EMVCO )
+ {
+ /*******************************************************************************/
+ /* EMD Handling - NFC Forum Digital 1.1 4.1.1.1 ; EMVCo 2.6 4.9.2 */
+ /* ReEnable the receiver on frames with a length < 4 bytes, upon: */
+ /* - Collision or Framing error detected */
+ /* - Residual bits are detected (hard framing error) */
+ /* - Parity error */
+ /* - CRC error */
+ /*******************************************************************************/
+
+ /* In case there are residual bits decrement FIFO bytes */
+ if( rfalFIFOStatusIsIncompleteByte(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) || rfalFIFOStatusIsMissingPar(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ fifoBytesToRead--;
+ }
+
+ if( ( (gRFAL.fifo.bytesTotal + fifoBytesToRead) < RFAL_EMVCO_RX_MAXLEN ) &&
+ ( (gRFAL.TxRx.status == ERR_RF_COLLISION) || (gRFAL.TxRx.status == ERR_FRAMING) ||
+ (gRFAL.TxRx.status == ERR_PAR) || (gRFAL.TxRx.status == ERR_CRC) ||
+ rfalFIFOStatusIsIncompleteByte(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) || rfalFIFOStatusIsMissingPar(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ) )
+ {
+ /* Ignore this reception, ReEnable receiver */
+ mST25 -> executeCommands( reEnRx, sizeof(reEnRx), mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ rfalFIFOStatusClear();
+ gRFAL.fifo.bytesTotal = 0;
+ gRFAL.TxRx.status = ERR_BUSY;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_WAIT_RXS;
+ }
+ return;
+ }
+
+ /*******************************************************************************/
+ /* ISO14443A Mode */
+ /*******************************************************************************/
+ if( gRFAL.mode == RFAL_MODE_POLL_NFCA )
+ {
+
+ /*******************************************************************************/
+ /* If we received one incomplete byte (not a block and a incomplete byte at *
+ * the end) we`ll raise a specific error ( support for T2T 4 bit ACK / NAK ) *
+ * Otherwise just leave it as an CRC/FRAMING/PAR error */
+ /*******************************************************************************/
+ if( (gRFAL.TxRx.status == ERR_PAR) || (gRFAL.TxRx.status == ERR_CRC) )
+ {
+ if( rfalFIFOStatusIsIncompleteByte(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) && (fifoBytesToRead == RFAL_NFC_RX_INCOMPLETE_LEN) )
+ {
+ mST25 -> readFifo( (uint8_t*)(gRFAL.TxRx.ctx.rxBuf), fifoBytesToRead, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( gRFAL.TxRx.ctx.rxRcvdLen ) *gRFAL.TxRx.ctx.rxRcvdLen = rfalFIFOGetNumIncompleteBits(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.TxRx.status = ERR_INCOMPLETE_BYTE;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+ }
+ }
+
+}
+
+
+/*******************************************************************************/
+static void rfalCleanupTransceive( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ /*******************************************************************************/
+ /* Transceive flags */
+ /*******************************************************************************/
+
+ /* Restore default settings on NFCIP1 mode, Receiving parity + CRC bits and manual Tx Parity*/
+ st25r3911ClrRegisterBits( ST25R3911_REG_ISO14443A_NFC, (ST25R3911_REG_ISO14443A_NFC_no_tx_par | ST25R3911_REG_ISO14443A_NFC_no_rx_par | ST25R3911_REG_ISO14443A_NFC_nfc_f0),mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Restore AGC enabled */
+ st25r3911SetRegisterBits( ST25R3911_REG_RX_CONF2, ST25R3911_REG_RX_CONF2_agc_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+
+
+
+ /*******************************************************************************/
+ /* Execute Post Transceive Callback */
+ /*******************************************************************************/
+ if( gRFAL.callbacks.postTxRx != NULL )
+ {
+ gRFAL.callbacks.postTxRx();
+ }
+ /*******************************************************************************/
+
+}
+
+
+/*******************************************************************************/
+static void rfalPrepareTransceive( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint32_t maskInterrupts;
+ uint8_t reg;
+
+ /*******************************************************************************/
+ /* In the EMVCo mode the NRT will continue to run. *
+ * For the clear to stop it, the EMV mode has to be disabled before */
+ st25r3911ClrRegisterBits( ST25R3911_REG_GPT_CONTROL, ST25R3911_REG_GPT_CONTROL_nrt_emv, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Reset receive logic */
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_FIFO, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Reset Rx Gain */
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_SQUELCH, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* FDT Poll */
+ /*******************************************************************************/
+ if( rfalIsModePassiveComm( gRFAL.mode ) ) /* Passive Comms */
+ {
+ /* In Passive communications General Purpose Timer is used to measure FDT Poll */
+ if( gRFAL.timings.FDTPoll != RFAL_TIMING_NONE )
+ {
+ /* Configure GPT to start at RX end */
+ st25r3911StartGPTimer_8fcs( rfalConv1fcTo8fc( MIN( gRFAL.timings.FDTPoll, (gRFAL.timings.FDTPoll - RFAL_FDT_POLL_ADJUSTMENT) ) ), ST25R3911_REG_GPT_CONTROL_gptc_erx,
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ }
+
+
+ /*******************************************************************************/
+ /* Execute Pre Transceive Callback */
+ /*******************************************************************************/
+ if( gRFAL.callbacks.preTxRx != NULL )
+ {
+ gRFAL.callbacks.preTxRx();
+ }
+ /*******************************************************************************/
+
+ maskInterrupts = ( ST25R3911_IRQ_MASK_FWL | ST25R3911_IRQ_MASK_TXE |
+ ST25R3911_IRQ_MASK_RXS | ST25R3911_IRQ_MASK_RXE |
+ ST25R3911_IRQ_MASK_FWL | ST25R3911_IRQ_MASK_NRE |
+ ST25R3911_IRQ_MASK_PAR | ST25R3911_IRQ_MASK_CRC |
+ ST25R3911_IRQ_MASK_ERR1 | ST25R3911_IRQ_MASK_ERR2 );
+
+
+ /*******************************************************************************/
+ /* Transceive flags */
+ /*******************************************************************************/
+
+ reg = (ST25R3911_REG_ISO14443A_NFC_no_tx_par_off | ST25R3911_REG_ISO14443A_NFC_no_rx_par_off | ST25R3911_REG_ISO14443A_NFC_nfc_f0_off);
+
+ /* Check if NFCIP1 mode is to be enabled */
+ if( (gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_NFCIP1_ON) )
+ {
+ reg |= ST25R3911_REG_ISO14443A_NFC_nfc_f0;
+ }
+
+ /* Check if Parity check is to be skipped and to keep the parity + CRC bits in FIFO */
+ if( (gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_PAR_RX_KEEP) )
+ {
+ reg |= ST25R3911_REG_ISO14443A_NFC_no_rx_par;
+ }
+
+ /* Check if automatic Parity bits is to be disabled */
+ if( (gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_PAR_TX_NONE) )
+ {
+ reg |= ST25R3911_REG_ISO14443A_NFC_no_tx_par;
+ }
+
+ /* Apply current TxRx flags on ISO14443A and NFC 106kb/s Settings Register */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_ISO14443A_NFC, (ST25R3911_REG_ISO14443A_NFC_no_tx_par | ST25R3911_REG_ISO14443A_NFC_no_rx_par | ST25R3911_REG_ISO14443A_NFC_nfc_f0),
+ reg, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* Check if AGC is to be disabled */
+ if( (gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_AGC_OFF) )
+ {
+ st25r3911ClrRegisterBits( ST25R3911_REG_RX_CONF2, ST25R3911_REG_RX_CONF2_agc_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ st25r3911SetRegisterBits( ST25R3911_REG_RX_CONF2, ST25R3911_REG_RX_CONF2_agc_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ /*******************************************************************************/
+
+
+
+ /*******************************************************************************/
+ /* EMVCo NRT mode */
+ /*******************************************************************************/
+ if( gRFAL.conf.eHandling == RFAL_ERRORHANDLING_EMVCO )
+ {
+ st25r3911SetRegisterBits( ST25R3911_REG_GPT_CONTROL, ST25R3911_REG_GPT_CONTROL_nrt_emv, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ st25r3911ClrRegisterBits( ST25R3911_REG_GPT_CONTROL, ST25R3911_REG_GPT_CONTROL_nrt_emv, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ /*******************************************************************************/
+
+
+
+ /* In Active comms enable also External Field interrupts */
+ if( rfalIsModeActiveComm( gRFAL.mode ) )
+ {
+ maskInterrupts |= ( ST25R3911_IRQ_MASK_EOF | ST25R3911_IRQ_MASK_EON | ST25R3911_IRQ_MASK_CAT | ST25R3911_IRQ_MASK_CAC );
+ }
+
+
+ /*******************************************************************************/
+ /* clear and enable these interrupts */
+ st25r3911GetInterrupt( maskInterrupts, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911EnableInterrupts( maskInterrupts, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Clear FIFO status local copy */
+ rfalFIFOStatusClear();
+}
+
+/*******************************************************************************/
+static void rfalTransceiveTx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ volatile uint32_t irqs;
+ uint16_t tmp;
+ ReturnCode ret;
+
+ /* NO_WARNING(ret); */
+
+ irqs = ST25R3911_IRQ_MASK_NONE;
+
+ if( gRFAL.TxRx.state != gRFAL.TxRx.lastState )
+ {
+ /* rfalLogD( "RFAL: lastSt: %d curSt: %d \r\n", gRFAL.TxRx.lastState, gRFAL.TxRx.state ); */
+ gRFAL.TxRx.lastState = gRFAL.TxRx.state;
+ }
+
+ switch( gRFAL.TxRx.state )
+ {
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_IDLE:
+
+ /* Nothing to do */
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_WAIT_GT ;
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_WAIT_GT:
+
+ if( !rfalIsGTExpired() )
+ {
+ break;
+ }
+
+ gRFAL.tmr.GT = RFAL_TIMING_NONE;
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_WAIT_FDT;
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_WAIT_FDT:
+
+ /* Only in Passive communications GPT is used to measure FDT Poll */
+ if( rfalIsModePassiveComm( gRFAL.mode ) )
+ {
+ if( ( st25r3911CheckReg(ST25R3911_REG_REGULATOR_RESULT, ST25R3911_REG_REGULATOR_RESULT_gpt_on, ST25R3911_REG_REGULATOR_RESULT_gpt_on, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ) )
+ {
+ break;
+ }
+ }
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_TRANSMIT;
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_TRANSMIT:
+
+ /* Clear FIFO, Clear and Enable the Interrupts */
+ rfalPrepareTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Calculate when Water Level Interrupt will be triggered */
+ gRFAL.fifo.expWL = ( st25r3911CheckReg( ST25R3911_REG_IO_CONF1, ST25R3911_REG_IO_CONF1_fifo_lt, ST25R3911_REG_IO_CONF1_fifo_lt_16bytes, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ? RFAL_FIFO_OUT_LT_16 : RFAL_FIFO_OUT_LT_32);
+
+ #if RFAL_FEATURE_NFCV
+ /*******************************************************************************/
+ /* In NFC-V streaming mode, the FIFO needs to be loaded with the coded bits */
+ if( (RFAL_MODE_POLL_NFCV == gRFAL.mode) || (RFAL_MODE_POLL_PICOPASS == gRFAL.mode) )
+ {
+#if 0
+ /* Debugging code: output the payload bits by writing into the FIFO and subsequent clearing */
+ mST25 -> writeFifo(gRFAL.TxRx.ctx.txBuf, rfalConvBitsToBytes(gRFAL.TxRx.ctx.txBufLen));
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_FIFO, mspiChannel );
+#endif
+ /* Calculate the bytes needed to be Written into FIFO (a incomplete byte will be added as 1byte) */
+ gRFAL.nfcvData.nfcvOffset = 0;
+ ret = iso15693VCDCode(gRFAL.TxRx.ctx.txBuf, rfalConvBitsToBytes(gRFAL.TxRx.ctx.txBufLen), ((gRFAL.nfcvData.origCtx.flags & RFAL_TXRX_FLAGS_CRC_TX_MANUAL)?false:true),((gRFAL.nfcvData.origCtx.flags & RFAL_TXRX_FLAGS_NFCV_FLAG_MANUAL)?false:true), (RFAL_MODE_POLL_PICOPASS == gRFAL.mode),
+ &gRFAL.fifo.bytesTotal, &gRFAL.nfcvData.nfcvOffset, gRFAL.nfcvData.codingBuffer, MIN( ST25R3911_FIFO_DEPTH, sizeof(gRFAL.nfcvData.codingBuffer) ), &gRFAL.fifo.bytesWritten);
+
+ if( (ret != ERR_NONE) && (ret != ERR_AGAIN) )
+ {
+ gRFAL.TxRx.status = ret;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_FAIL;
+ break;
+ }
+ /* Set the number of full bytes and bits to be transmitted */
+ st25r3911SetNumTxBits( rfalConvBytesToBits(gRFAL.fifo.bytesTotal), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Load FIFO with coded bytes */
+ mST25 -> writeFifo( gRFAL.nfcvData.codingBuffer, gRFAL.fifo.bytesWritten, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ }
+ /*******************************************************************************/
+ else
+ #endif /* RFAL_FEATURE_NFCV */
+ {
+ /* Calculate the bytes needed to be Written into FIFO (a incomplete byte will be added as 1byte) */
+ gRFAL.fifo.bytesTotal = rfalCalcNumBytes(gRFAL.TxRx.ctx.txBufLen);
+
+ /* Set the number of full bytes and bits to be transmitted */
+ st25r3911SetNumTxBits( gRFAL.TxRx.ctx.txBufLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Load FIFO with total length or FIFO's maximum */
+ gRFAL.fifo.bytesWritten = MIN( gRFAL.fifo.bytesTotal, ST25R3911_FIFO_DEPTH );
+ mST25 -> writeFifo( gRFAL.TxRx.ctx.txBuf, gRFAL.fifo.bytesWritten, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /*Check if Observation Mode is enabled and set it on ST25R391x */
+ rfalCheckEnableObsModeTx();
+
+ /*******************************************************************************/
+ /* Trigger/Start transmission */
+ if( gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_CRC_TX_MANUAL )
+ {
+ mST25 -> executeCommand( ST25R3911_CMD_TRANSMIT_WITHOUT_CRC, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ mST25 -> executeCommand( ST25R3911_CMD_TRANSMIT_WITH_CRC, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Check if a WL level is expected or TXE should come */
+ gRFAL.TxRx.state = (( gRFAL.fifo.bytesWritten < gRFAL.fifo.bytesTotal ) ? RFAL_TXRX_STATE_TX_WAIT_WL : RFAL_TXRX_STATE_TX_WAIT_TXE);
+ break;
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_WAIT_WL:
+
+ irqs = st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_FWL | ST25R3911_IRQ_MASK_TXE), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_FWL) && !(irqs & ST25R3911_IRQ_MASK_TXE) )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_RELOAD_FIFO;
+ }
+ else
+ {
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_FAIL;
+ break;
+ }
+
+ /* fall through */
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_RELOAD_FIFO:
+
+ #if RFAL_FEATURE_NFCV
+ /*******************************************************************************/
+ /* In NFC-V streaming mode, the FIFO needs to be loaded with the coded bits */
+ if( (RFAL_MODE_POLL_NFCV == gRFAL.mode) || (RFAL_MODE_POLL_PICOPASS == gRFAL.mode) )
+ {
+ uint16_t maxLen;
+
+ /* Load FIFO with the remaining length or maximum available (which fit on the coding buffer) */
+ maxLen = MIN( (gRFAL.fifo.bytesTotal - gRFAL.fifo.bytesWritten), gRFAL.fifo.expWL);
+ maxLen = MIN( maxLen, sizeof(gRFAL.nfcvData.codingBuffer) );
+ tmp = 0;
+
+ /* Calculate the bytes needed to be Written into FIFO (a incomplete byte will be added as 1byte) */
+ ret = iso15693VCDCode(gRFAL.TxRx.ctx.txBuf, rfalConvBitsToBytes(gRFAL.TxRx.ctx.txBufLen), ((gRFAL.nfcvData.origCtx.flags & RFAL_TXRX_FLAGS_CRC_TX_MANUAL)?false:true), ((gRFAL.nfcvData.origCtx.flags & RFAL_TXRX_FLAGS_NFCV_FLAG_MANUAL)?false:true), (RFAL_MODE_POLL_PICOPASS == gRFAL.mode),
+ &gRFAL.fifo.bytesTotal, &gRFAL.nfcvData.nfcvOffset, gRFAL.nfcvData.codingBuffer, maxLen, &tmp);
+
+ if( (ret != ERR_NONE) && (ret != ERR_AGAIN) )
+ {
+ gRFAL.TxRx.status = ret;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_FAIL;
+ break;
+ }
+
+ /* Load FIFO with coded bytes */
+ mST25 -> writeFifo( gRFAL.nfcvData.codingBuffer, tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ /*******************************************************************************/
+ else
+ #endif /* RFAL_FEATURE_NFCV */
+ {
+ /* Load FIFO with the remaining length or maximum available */
+ tmp = MIN( (gRFAL.fifo.bytesTotal - gRFAL.fifo.bytesWritten), gRFAL.fifo.expWL); /* tmp holds the number of bytes written on this iteration */
+ mST25 -> writeFifo( gRFAL.TxRx.ctx.txBuf + gRFAL.fifo.bytesWritten, tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* Update total written bytes to FIFO */
+ gRFAL.fifo.bytesWritten += tmp;
+
+ /* Check if a WL level is expected or TXE should come */
+ gRFAL.TxRx.state = (( gRFAL.fifo.bytesWritten < gRFAL.fifo.bytesTotal ) ? RFAL_TXRX_STATE_TX_WAIT_WL : RFAL_TXRX_STATE_TX_WAIT_TXE);
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_WAIT_TXE:
+
+ irqs = st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_FWL | ST25R3911_IRQ_MASK_TXE), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+
+ if( (irqs & ST25R3911_IRQ_MASK_TXE) )
+ {
+ /* In Active comm start SW timer to measure FWT */
+ if( rfalIsModeActiveComm( gRFAL.mode) && (gRFAL.TxRx.ctx.fwt != RFAL_FWT_NONE) && (gRFAL.TxRx.ctx.fwt != 0) )
+ {
+ rfalTimerStart( gRFAL.tmr.FWT, rfalConv1fcToMs( gRFAL.TxRx.ctx.fwt ) );
+ }
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_DONE;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_FWL) )
+ {
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #TBD */
+ /* ST25R3911 may send a WL even when all bytes have been written to FIFO */
+ /*******************************************************************************/
+ break; /* Ignore ST25R3911 FIFO WL if total TxLen is already on the FIFO */
+ }
+ else
+ {
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_FAIL;
+ break;
+ } // @suppress("No break at end of case")
+
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_DONE:
+
+ /* If no rxBuf is provided do not wait/expect Rx */
+ if( gRFAL.TxRx.ctx.rxBuf == NULL )
+ {
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+
+ /* Clean up Transceive */
+ rfalCleanupTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.TxRx.status = ERR_NONE;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_IDLE;
+ break;
+ }
+
+ rfalCheckEnableObsModeRx();
+
+ /* Goto Rx */
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_IDLE;
+ break;
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_TX_FAIL:
+
+ /* Error should be assigned by previous state */
+ if( gRFAL.TxRx.status == ERR_BUSY )
+ {
+ gRFAL.TxRx.status = ERR_SYSTEM;
+ }
+
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+
+ /* Clean up Transceive */
+ rfalCleanupTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_IDLE;
+ break;
+
+ /*******************************************************************************/
+ default:
+ gRFAL.TxRx.status = ERR_SYSTEM;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_TX_FAIL;
+ break;
+ }
+}
+
+
+/*******************************************************************************/
+static void rfalTransceiveRx( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ volatile uint32_t irqs;
+ uint8_t tmp;
+ uint8_t aux;
+
+ irqs = ST25R3911_IRQ_MASK_NONE;
+
+ if( gRFAL.TxRx.state != gRFAL.TxRx.lastState )
+ {
+ /* rfalLogD( "RFAL: lastSt: %d curSt: %d \r\n", gRFAL.TxRx.lastState, gRFAL.TxRx.state ); */
+ gRFAL.TxRx.lastState = gRFAL.TxRx.state;
+ }
+
+ switch( gRFAL.TxRx.state )
+ {
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_IDLE:
+
+ /* Clear rx counters */
+ gRFAL.fifo.bytesWritten = 0; /* Total bytes written on RxBuffer */
+ gRFAL.fifo.bytesTotal = 0; /* Total bytes in FIFO will now be from Rx */
+ if( gRFAL.TxRx.ctx.rxRcvdLen ) *gRFAL.TxRx.ctx.rxRcvdLen = 0;
+
+ gRFAL.TxRx.state = ( rfalIsModeActiveComm( gRFAL.mode ) ? RFAL_TXRX_STATE_RX_WAIT_EON : RFAL_TXRX_STATE_RX_WAIT_RXS );
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_WAIT_RXS:
+
+ /*******************************************************************************/
+ /* If in Active comm, Check if FWT SW timer has expired */
+ if( rfalIsModeActiveComm( gRFAL.mode ) && (gRFAL.TxRx.ctx.fwt != RFAL_FWT_NONE) && (gRFAL.TxRx.ctx.fwt != 0) )
+ {
+ if( rfalTimerisExpired( gRFAL.tmr.FWT ) )
+ {
+ gRFAL.TxRx.status = ERR_TIMEOUT;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+ }
+
+ /*******************************************************************************/
+ irqs = st25r3911GetInterrupt( ( ST25R3911_IRQ_MASK_RXS | ST25R3911_IRQ_MASK_NRE | ST25R3911_IRQ_MASK_EOF | ST25R3911_IRQ_MASK_RXE), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.7 */
+ /* NRE interrupt may be triggered twice */
+ /* Ignore NRE if is detected together with no Rx Start */
+ /*******************************************************************************/
+
+ /* Only raise Timeout if NRE is detected with no Rx Start (NRT EMV mode) */
+ if( (irqs & ST25R3911_IRQ_MASK_NRE) && !(irqs & ST25R3911_IRQ_MASK_RXS) )
+ {
+ gRFAL.TxRx.status = ERR_TIMEOUT;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+
+ /* Only raise Link Loss if EOF is detected with no Rx Start */
+ if( (irqs & ST25R3911_IRQ_MASK_EOF) && !(irqs & ST25R3911_IRQ_MASK_RXS) )
+ {
+ gRFAL.TxRx.status = ERR_LINK_LOSS;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_RXS) )
+ {
+ /* If we got RXS + RXE together, jump directly into RFAL_TXRX_STATE_RX_ERR_CHECK */
+ if( (irqs & ST25R3911_IRQ_MASK_RXE) )
+ {
+ gRFAL.TxRx.rxse = true;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_ERR_CHECK;
+ break;
+ }
+ else
+ {
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.1 */
+ /* Rarely on corrupted frames I_rxs gets signaled but I_rxe is not signaled */
+ /* Use a SW timer to handle an eventual missing RXE */
+ rfalTimerStart( gRFAL.tmr.RXE, RFAL_NORXE_TOUT );
+ /*******************************************************************************/
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_WAIT_RXE;
+ }
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_RXE) )
+ {
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.9 */
+ /* ST25R3911 may indicate RXE without RXS previously, this happens upon some */
+ /* noise or incomplete byte frames with less than 4 bits */
+ /*******************************************************************************/
+
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ else
+ {
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_WAIT_RXE:
+
+ irqs = st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_RXE | ST25R3911_IRQ_MASK_FWL | ST25R3911_IRQ_MASK_EOF), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911B Errata #1.1 */
+ /* ST25R3911 may indicate RXS without RXE afterwards, this happens rarely on */
+ /* corrupted frames. */
+ /* SW timer is used to timeout upon a missing RXE */
+ if( rfalTimerisExpired( gRFAL.tmr.RXE ) )
+ {
+ gRFAL.TxRx.status = ERR_FRAMING;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+ /*******************************************************************************/
+
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_FWL) && !(irqs & ST25R3911_IRQ_MASK_RXE) )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_FIFO;
+ break;
+ }
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_ERR_CHECK;
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_ERR_CHECK:
+
+ /* Retrieve and check for any error irqs */
+ irqs |= st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_CRC | ST25R3911_IRQ_MASK_PAR | ST25R3911_IRQ_MASK_ERR1 | ST25R3911_IRQ_MASK_ERR2 | ST25R3911_IRQ_MASK_COL), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ if( (irqs & ST25R3911_IRQ_MASK_ERR1) )
+ {
+ gRFAL.TxRx.status = ERR_FRAMING;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+
+ /* Check if there's a specific error handling for this */
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ /* Discard Soft Framing errors if not in EMVCo error handling */
+ else if( (irqs & ST25R3911_IRQ_MASK_ERR2) && (gRFAL.conf.eHandling == RFAL_ERRORHANDLING_EMVCO) )
+ {
+ gRFAL.TxRx.status = ERR_FRAMING;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+
+ /* Check if there's a specific error handling for this */
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_PAR) )
+ {
+ gRFAL.TxRx.status = ERR_PAR;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+
+ /* Check if there's a specific error handling for this */
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_CRC) )
+ {
+ gRFAL.TxRx.status = ERR_CRC;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+
+ /* Check if there's a specific error handling for this */
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_COL) )
+ {
+ gRFAL.TxRx.status = ERR_RF_COLLISION;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+
+ /* Check if there's a specific error handling for this */
+ rfalErrorHandling(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_EOF) && !(irqs & ST25R3911_IRQ_MASK_RXE) )
+ {
+ gRFAL.TxRx.status = ERR_LINK_LOSS;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_RXE) || gRFAL.TxRx.rxse )
+ {
+ /* Reception ended without any error indication, *
+ * check FIFO status for malformed or incomplete frames */
+
+ /* Check if the reception ends with an incomplete byte (residual bits) */
+ if( rfalFIFOStatusIsIncompleteByte(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ gRFAL.TxRx.status = ERR_INCOMPLETE_BYTE;
+ }
+ /* Check if the reception ends with missing parity bit */
+ else if( rfalFIFOStatusIsMissingPar(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ gRFAL.TxRx.status = ERR_FRAMING;
+ }
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_READ_DATA;
+ }
+ else
+ {
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_READ_DATA:
+
+ tmp = rfalFIFOStatusGetNumBytes(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* Check if CRC should not be placed in rxBuf */
+ if( !(gRFAL.TxRx.ctx.flags & RFAL_TXRX_FLAGS_CRC_RX_KEEP) )
+ {
+ /* Check if CRC is being placed into the FIFO and if received frame was bigger than CRC */
+ if( ( st25r3911CheckReg(ST25R3911_REG_AUX, ST25R3911_REG_AUX_crc_2_fifo, ST25R3911_REG_AUX_crc_2_fifo, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ && ( gRFAL.fifo.bytesTotal + tmp) )
+ {
+ /* By default CRC will not be placed into the rxBuffer */
+ if( ( tmp > RFAL_CRC_LEN) )
+ {
+ tmp -= RFAL_CRC_LEN;
+ }
+ /* If the CRC was already placed into rxBuffer (due to WL interrupt where CRC was already in FIFO Read)
+ * cannot remove it from rxBuf. Can only remove it from rxBufLen not indicate the presence of CRC */
+ else if(gRFAL.fifo.bytesTotal > RFAL_CRC_LEN)
+ {
+ gRFAL.fifo.bytesTotal -= RFAL_CRC_LEN;
+ }
+ }
+ }
+
+ gRFAL.fifo.bytesTotal += tmp; /* add to total bytes counter */
+
+ /*******************************************************************************/
+ /* Check if remaining bytes fit on the rxBuf available */
+ if( gRFAL.fifo.bytesTotal > rfalConvBitsToBytes(gRFAL.TxRx.ctx.rxBufLen) )
+ {
+ tmp = ( rfalConvBitsToBytes(gRFAL.TxRx.ctx.rxBufLen) - gRFAL.fifo.bytesWritten);
+
+ gRFAL.TxRx.status = ERR_NOMEM;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+
+ /*******************************************************************************/
+ /* Retrieve remaining bytes from FIFO to rxBuf, and assign total length rcvd */
+ mST25 -> readFifo( (uint8_t*)(gRFAL.TxRx.ctx.rxBuf + gRFAL.fifo.bytesWritten), tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( gRFAL.TxRx.ctx.rxRcvdLen )
+ {
+ (*gRFAL.TxRx.ctx.rxRcvdLen) = rfalConvBytesToBits( gRFAL.fifo.bytesTotal );
+ if( rfalFIFOStatusIsIncompleteByte(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ (*gRFAL.TxRx.ctx.rxRcvdLen) -= (RFAL_BITS_IN_BYTE - rfalFIFOGetNumIncompleteBits(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+ }
+ }
+
+ #if RFAL_FEATURE_NFCV
+ /*******************************************************************************/
+ /* Decode sub bit stream into payload bits for NFCV, if no error found so far */
+ if( ((RFAL_MODE_POLL_NFCV == gRFAL.mode) || (RFAL_MODE_POLL_PICOPASS == gRFAL.mode)) && (gRFAL.TxRx.status == ERR_BUSY) )
+ {
+ ReturnCode ret;
+ uint16_t offset = 0;
+
+ ret = iso15693VICCDecode(gRFAL.TxRx.ctx.rxBuf, gRFAL.fifo.bytesTotal,
+ gRFAL.nfcvData.origCtx.rxBuf, rfalConvBitsToBytes(gRFAL.nfcvData.origCtx.rxBufLen), &offset, gRFAL.nfcvData.origCtx.rxRcvdLen, gRFAL.nfcvData.ignoreBits, (RFAL_MODE_POLL_PICOPASS == gRFAL.mode) );
+
+ if( ((ERR_NONE == ret) || (ERR_CRC == ret))
+ && !(RFAL_TXRX_FLAGS_CRC_RX_KEEP & gRFAL.nfcvData.origCtx.flags)
+ && ((*gRFAL.nfcvData.origCtx.rxRcvdLen % RFAL_BITS_IN_BYTE) == 0)
+ && (*gRFAL.nfcvData.origCtx.rxRcvdLen >= rfalConvBytesToBits(RFAL_CRC_LEN) )
+ )
+ {
+ *gRFAL.nfcvData.origCtx.rxRcvdLen -= rfalConvBytesToBits(RFAL_CRC_LEN); /* Remove CRC */
+ }
+
+ /* Restore original ctx */
+ gRFAL.TxRx.ctx = gRFAL.nfcvData.origCtx;
+ gRFAL.TxRx.status = ret;
+
+ if(gRFAL.TxRx.status)
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+ }
+ #endif /* RFAL_FEATURE_NFCV */
+
+ /*******************************************************************************/
+ /* If an error as been marked/detected don't fall into to RX_DONE */
+ if( gRFAL.TxRx.status != ERR_BUSY )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+
+ if( rfalIsModeActiveComm( gRFAL.mode ) )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_WAIT_EOF;
+ break;
+ }
+
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_DONE;
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_DONE:
+
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+
+ /* Clean up Transceive */
+ rfalCleanupTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ gRFAL.TxRx.status = ERR_NONE;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_IDLE;
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_READ_FIFO:
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911B Errata #1.1 */
+ /* ST25R3911 may indicate RXS without RXE afterwards, this happens rarely on */
+ /* corrupted frames. */
+ /* Re-Start SW timer to handle an eventual missing RXE */
+ rfalTimerStart( gRFAL.tmr.RXE, RFAL_NORXE_TOUT );
+ /*******************************************************************************/
+
+
+ tmp = rfalFIFOStatusGetNumBytes(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ gRFAL.fifo.bytesTotal += tmp;
+
+ /*******************************************************************************/
+ /* Calculate the amount of bytes that still fits in rxBuf */
+ aux = (( gRFAL.fifo.bytesTotal > rfalConvBitsToBytes(gRFAL.TxRx.ctx.rxBufLen) ) ? (rfalConvBitsToBytes(gRFAL.TxRx.ctx.rxBufLen) - gRFAL.fifo.bytesWritten) : tmp);
+
+ /*******************************************************************************/
+ /* Retrieve incoming bytes from FIFO to rxBuf, and store already read amount */
+ mST25 -> readFifo( (uint8_t*)(gRFAL.TxRx.ctx.rxBuf + gRFAL.fifo.bytesWritten), aux, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ gRFAL.fifo.bytesWritten += aux;
+
+ /*******************************************************************************/
+ /* If the bytes already read were not the full FIFO WL, dump the remaining *
+ * FIFO so that ST25R391x can continue with reception */
+ if( aux < tmp )
+ {
+ mST25 -> readFifo( NULL, (tmp - aux), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ rfalFIFOStatusClear();
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_WAIT_RXE;
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_FAIL:
+
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+
+ /* Clean up Transceive */
+ rfalCleanupTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Error should be assigned by previous state */
+ if( gRFAL.TxRx.status == ERR_BUSY )
+ {
+ gRFAL.TxRx.status = ERR_SYSTEM;
+ }
+
+ /*rfalLogD( "RFAL: curSt: %d Error: %d \r\n", gRFAL.TxRx.state, gRFAL.TxRx.status );*/
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_IDLE;
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_WAIT_EON:
+
+ irqs = st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_EON | ST25R3911_IRQ_MASK_NRE), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_EON) )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_WAIT_RXS;
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_NRE) )
+ {
+ /* ST25R3911 uses the NRT to measure other device's Field On max time: Tadt + (n x Trfw) */
+ gRFAL.TxRx.status = ERR_LINK_LOSS;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+ break;
+
+
+ /*******************************************************************************/
+ case RFAL_TXRX_STATE_RX_WAIT_EOF:
+
+ irqs = st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_CAT | ST25R3911_IRQ_MASK_CAC), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_CAT) )
+ {
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_DONE;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_CAC) )
+ {
+ gRFAL.TxRx.status = ERR_RF_COLLISION;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+ else
+ {
+ gRFAL.TxRx.status = ERR_IO;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ }
+ break;
+
+
+ /*******************************************************************************/
+ default:
+ gRFAL.TxRx.status = ERR_SYSTEM;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_FAIL;
+ break;
+ }
+}
+
+/*******************************************************************************/
+static void rfalFIFOStatusUpdate( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if(gRFAL.fifo.status[RFAL_FIFO_STATUS_REG2] == RFAL_FIFO_STATUS_INVALID)
+ {
+ mST25 -> readMultipleRegisters( ST25R3911_REG_FIFO_RX_STATUS1, gRFAL.fifo.status, ST25R3911_FIFO_STATUS_LEN, mspiChannel,mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+}
+
+
+/*******************************************************************************/
+static void rfalFIFOStatusClear( void )
+{
+ gRFAL.fifo.status[RFAL_FIFO_STATUS_REG2] = RFAL_FIFO_STATUS_INVALID;
+}
+
+
+/*******************************************************************************/
+static uint8_t rfalFIFOStatusGetNumBytes( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ rfalFIFOStatusUpdate(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return gRFAL.fifo.status[RFAL_FIFO_STATUS_REG1];
+
+}
+
+
+/*******************************************************************************/
+static bool rfalFIFOStatusIsIncompleteByte( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ rfalFIFOStatusUpdate(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ((gRFAL.fifo.status[RFAL_FIFO_STATUS_REG2] & (ST25R3911_REG_FIFO_RX_STATUS2_mask_fifo_lb | ST25R3911_REG_FIFO_RX_STATUS2_fifo_ncp)) != 0);
+}
+
+
+/*******************************************************************************/
+static bool rfalFIFOStatusIsMissingPar( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ rfalFIFOStatusUpdate(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ((gRFAL.fifo.status[RFAL_FIFO_STATUS_REG2] & ST25R3911_REG_FIFO_RX_STATUS2_np_lb) != 0);
+}
+
+
+/*******************************************************************************/
+static uint8_t rfalFIFOGetNumIncompleteBits( ST25R3911* mST25, SPI * mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ rfalFIFOStatusUpdate(mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ((gRFAL.fifo.status[RFAL_FIFO_STATUS_REG2] & ST25R3911_REG_FIFO_RX_STATUS2_mask_fifo_lb) >> ST25R3911_REG_FIFO_RX_STATUS2_shift_fifo_lb);
+}
+
+
+#if RFAL_FEATURE_NFCA
+
+/*******************************************************************************/
+ReturnCode rfalISO14443ATransceiveShortFrame( rfal14443AShortFrameCmd txCmd, uint8_t* rxBuf, uint8_t rxBufLen, uint16_t* rxRcvdLen, uint32_t fwt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ uint8_t directCmd;
+
+ /* Check if RFAL is properly initialized */
+ if( (gRFAL.state < RFAL_STATE_MODE_SET) || (( gRFAL.mode != RFAL_MODE_POLL_NFCA ) && ( gRFAL.mode != RFAL_MODE_POLL_NFCA_T1T )) ||
+ !( st25r3911CheckReg(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /* Check for valid parameters */
+ if( (rxBuf == NULL) || (rxRcvdLen == NULL) || (fwt == RFAL_FWT_NONE) )
+ {
+ return ERR_PARAM;
+ }
+
+ /*******************************************************************************/
+ /* Select the Direct Command to be performed */
+ switch (txCmd)
+ {
+ case RFAL_14443A_SHORTFRAME_CMD_WUPA:
+ directCmd = ST25R3911_CMD_TRANSMIT_WUPA;
+ break;
+
+ case RFAL_14443A_SHORTFRAME_CMD_REQA:
+ directCmd = ST25R3911_CMD_TRANSMIT_REQA;
+ break;
+
+ default:
+ return ERR_PARAM;
+ }
+
+
+ /*******************************************************************************/
+ /* Enable anti collision to recognise collision in first byte of SENS_REQ */
+ st25r3911SetRegisterBits( ST25R3911_REG_ISO14443A_NFC, ST25R3911_REG_ISO14443A_NFC_antcl, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable CRC while receiving since ATQA has no CRC included */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_no_crc_rx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* Wait for GT and FDT */
+ while( !rfalIsGTExpired() );
+ while( st25r3911CheckReg(ST25R3911_REG_REGULATOR_RESULT, ST25R3911_REG_REGULATOR_RESULT_gpt_on, ST25R3911_REG_REGULATOR_RESULT_gpt_on, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) );
+
+ gRFAL.tmr.GT = RFAL_TIMING_NONE;
+
+
+ /*******************************************************************************/
+ /* Prepare for Transceive, Receive only (bypass Tx states) */
+ gRFAL.TxRx.ctx.flags = ( RFAL_TXRX_FLAGS_CRC_TX_MANUAL | RFAL_TXRX_FLAGS_CRC_RX_KEEP );
+ gRFAL.TxRx.ctx.rxBuf = rxBuf;
+ gRFAL.TxRx.ctx.rxBufLen = rxBufLen;
+ gRFAL.TxRx.ctx.rxRcvdLen = rxRcvdLen;
+
+ /*******************************************************************************/
+ /* Load NRT with FWT */
+ st25r3911SetNoResponseTime_64fcs( rfalConv1fcTo64fc( MIN( (fwt + RFAL_FWT_ADJUSTMENT + RFAL_FWT_A_ADJUSTMENT), RFAL_ST25R3911_NRT_MAX_1FC ) ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ if( gRFAL.timings.FDTListen != RFAL_TIMING_NONE )
+ {
+ /* Set Minimum FDT(Listen) in which PICC is not allowed to send a response */
+ mST25 -> writeRegister( ST25R3911_REG_MASK_RX_TIMER, rfalConv1fcTo64fc( ((RFAL_FDT_LISTEN_MRT_ADJUSTMENT + RFAL_FDT_LISTEN_A_ADJUSTMENT) > gRFAL.timings.FDTListen) ? RFAL_ST25R3911_MRT_MIN_1FC : (gRFAL.timings.FDTListen - (RFAL_FDT_LISTEN_MRT_ADJUSTMENT + RFAL_FDT_LISTEN_A_ADJUSTMENT)) ),
+ mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /* In Passive communications General Purpose Timer is used to measure FDT Poll */
+ if( gRFAL.timings.FDTPoll != RFAL_TIMING_NONE )
+ {
+ /* Configure GPT to start at RX end */
+ st25r3911StartGPTimer_8fcs( rfalConv1fcTo8fc( MIN( gRFAL.timings.FDTPoll, (gRFAL.timings.FDTPoll - RFAL_FDT_POLL_ADJUSTMENT) ) ), ST25R3911_REG_GPT_CONTROL_gptc_erx,
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ /*******************************************************************************/
+ rfalPrepareTransceive( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Also enable bit collision interrupt */
+ st25r3911GetInterrupt( ST25R3911_IRQ_MASK_COL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911EnableInterrupts( ST25R3911_IRQ_MASK_COL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*Check if Observation Mode is enabled and set it on ST25R391x */
+ rfalCheckEnableObsModeTx();
+
+ /*******************************************************************************/
+ /* Chip bug: Clear nbtx bits before sending WUPA/REQA - otherwise ST25R3911 will report parity error */
+ mST25 -> writeRegister( ST25R3911_REG_NUM_TX_BYTES2, 0, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Send either WUPA or REQA. All affected tags will backscatter ATQA and change to READY state */
+ mST25 -> executeCommand( directCmd, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Wait for TXE */
+ if( !st25r3911WaitForInterruptsTimed( ST25R3911_IRQ_MASK_TXE, MAX( rfalConv1fcToMs( fwt ), RFAL_ST25R3911_SW_TMR_MIN_1MS ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ ret = ERR_IO;
+ }
+ else
+ {
+ /*Check if Observation Mode is enabled and set it on ST25R391x */
+ rfalCheckEnableObsModeRx();
+
+ /* Jump into a transceive Rx state for reception (bypass Tx states) */
+ gRFAL.state = RFAL_STATE_TXRX;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_IDLE;
+ gRFAL.TxRx.status = ERR_BUSY;
+
+ /* Execute Transceive Rx blocking */
+ ret = rfalTransceiveBlockingRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+
+ /* Disable Collision interrupt */
+ st25r3911DisableInterrupts( (ST25R3911_IRQ_MASK_COL), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable anti collision again */
+ st25r3911ClrRegisterBits( ST25R3911_REG_ISO14443A_NFC, ST25R3911_REG_ISO14443A_NFC_antcl, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* ReEnable CRC on Rx */
+ st25r3911ClrRegisterBits(ST25R3911_REG_AUX, ST25R3911_REG_AUX_no_crc_rx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ return ret;
+}
+
+/*******************************************************************************/
+ReturnCode rfalISO14443ATransceiveAnticollisionFrame( uint8_t *buf, uint8_t *bytesToSend, uint8_t *bitsToSend,
+ uint16_t *rxLength, uint32_t fwt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ rfalTransceiveContext ctx;
+ uint8_t collByte;
+ uint8_t collData;
+
+ /* Check if RFAL is properly initialized */
+ if( (gRFAL.state < RFAL_STATE_MODE_SET) || ( gRFAL.mode != RFAL_MODE_POLL_NFCA ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /* Check for valid parameters */
+ if( (buf == NULL) || (bytesToSend == NULL) || (bitsToSend == NULL) || (rxLength == NULL) )
+ {
+ return ERR_PARAM;
+ }
+
+ /*******************************************************************************/
+ /* Enable anti collision to recognise collision in first byte of SENS_REQ */
+ st25r3911SetRegisterBits( ST25R3911_REG_ISO14443A_NFC, ST25R3911_REG_ISO14443A_NFC_antcl, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable CRC while receiving */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_no_crc_rx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+
+ /*******************************************************************************/
+ /* Prepare for Transceive */
+ ctx.flags = ( RFAL_TXRX_FLAGS_CRC_TX_MANUAL | RFAL_TXRX_FLAGS_CRC_RX_KEEP | RFAL_TXRX_FLAGS_AGC_OFF ); /* Disable Automatic Gain Control (AGC) for better detection of collision */
+ ctx.txBuf = buf;
+ ctx.txBufLen = (rfalConvBytesToBits( *bytesToSend ) + *bitsToSend );
+ ctx.rxBuf = (buf + (*bytesToSend));
+ ctx.rxBufLen = rfalConvBytesToBits( RFAL_ISO14443A_SDD_RES_LEN );
+ ctx.rxRcvdLen = rxLength;
+ ctx.fwt = fwt;
+
+ rfalStartTransceive( &ctx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Additionally enable bit collision interrupt */
+ st25r3911GetInterrupt( ST25R3911_IRQ_MASK_COL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911EnableInterrupts( ST25R3911_IRQ_MASK_COL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ collByte = 0;
+
+ /* save the collision byte */
+ if ((*bitsToSend) > 0)
+ {
+ buf[(*bytesToSend)] <<= (RFAL_BITS_IN_BYTE - (*bitsToSend));
+ buf[(*bytesToSend)] >>= (RFAL_BITS_IN_BYTE - (*bitsToSend));
+ collByte = buf[(*bytesToSend)];
+ }
+
+
+ /*******************************************************************************/
+ /* Run Transceive blocking */
+ ret = rfalTransceiveRunBlockingTx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( ret == ERR_NONE)
+ {
+ ret = rfalTransceiveBlockingRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+ /*******************************************************************************/
+ if ((*bitsToSend) > 0)
+ {
+ buf[(*bytesToSend)] >>= (*bitsToSend);
+ buf[(*bytesToSend)] <<= (*bitsToSend);
+ buf[(*bytesToSend)] |= collByte;
+ }
+
+ if( (ERR_RF_COLLISION == ret) )
+ {
+ /* read out collision register */
+ mST25 -> readRegister( ST25R3911_REG_COLLISION_STATUS, &collData, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ (*bytesToSend) = ((collData >> ST25R3911_REG_COLLISION_STATUS_shift_c_byte) & 0x0F); /* 4-bits Byte information */
+ (*bitsToSend) = ((collData >> ST25R3911_REG_COLLISION_STATUS_shift_c_bit) & 0x07); /* 3-bits bit information */
+
+ }
+ }
+
+
+ /*******************************************************************************/
+ /* Disable Collision interrupt */
+ st25r3911DisableInterrupts( (ST25R3911_IRQ_MASK_COL), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable anti collision again */
+ st25r3911ClrRegisterBits( ST25R3911_REG_ISO14443A_NFC, ST25R3911_REG_ISO14443A_NFC_antcl, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* ReEnable CRC on Rx */
+ st25r3911ClrRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_no_crc_rx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ret;
+}
+
+#endif /* RFAL_FEATURE_NFCA */
+
+#if RFAL_FEATURE_NFCV
+
+/*******************************************************************************/
+ReturnCode rfalISO15693TransceiveAnticollisionFrame( uint8_t *txBuf, uint8_t txBufLen, uint8_t *rxBuf, uint8_t rxBufLen, uint16_t *actLen, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ rfalTransceiveContext ctx;
+
+ /* Check if RFAL is properly initialized */
+ if( (gRFAL.state < RFAL_STATE_MODE_SET) || ( gRFAL.mode != RFAL_MODE_POLL_NFCV ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /* Ignoring collisions before the UID (RES_FLAG + DSFID) */
+ gRFAL.nfcvData.ignoreBits = RFAL_ISO15693_IGNORE_BITS;
+
+ /*******************************************************************************/
+ /* Prepare for Transceive */
+ ctx.flags = ( ((txBufLen==0)?RFAL_TXRX_FLAGS_CRC_TX_MANUAL:RFAL_TXRX_FLAGS_CRC_TX_AUTO) | RFAL_TXRX_FLAGS_CRC_RX_KEEP | RFAL_TXRX_FLAGS_AGC_OFF | ((txBufLen==0)?RFAL_TXRX_FLAGS_NFCV_FLAG_MANUAL:RFAL_TXRX_FLAGS_NFCV_FLAG_AUTO) ); /* Disable Automatic Gain Control (AGC) for better detection of collision */
+ ctx.txBuf = txBuf;
+ ctx.txBufLen = rfalConvBytesToBits(txBufLen);
+ ctx.rxBuf = rxBuf;
+ ctx.rxBufLen = rfalConvBytesToBits(rxBufLen);
+ ctx.rxRcvdLen = actLen;
+ ctx.fwt = rfalConv64fcTo1fc(ISO15693_NO_RESPONSE_TIME);
+
+ rfalStartTransceive( &ctx, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* Run Transceive blocking */
+ ret = rfalTransceiveRunBlockingTx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( ret == ERR_NONE)
+ {
+ ret = rfalTransceiveBlockingRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+
+ gRFAL.nfcvData.ignoreBits = 0;
+ return ret;
+}
+
+/*******************************************************************************/
+ReturnCode rfalISO15693TransceiveAnticollisionEOF( uint8_t *rxBuf, uint8_t rxBufLen, uint16_t *actLen, SPI* mspiChannel,
+ ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint8_t dummy;
+
+ return rfalISO15693TransceiveAnticollisionFrame( &dummy, 0, rxBuf, rxBufLen, actLen, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+/*******************************************************************************/
+ReturnCode rfalISO15693TransceiveEOF( uint8_t *rxBuf, uint8_t rxBufLen, uint16_t *actLen,
+ SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ uint8_t dummy;
+
+ /* Check if RFAL is properly initialized */
+ if( ( gRFAL.state < RFAL_STATE_MODE_SET ) || ( gRFAL.mode != RFAL_MODE_POLL_NFCV ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ /*******************************************************************************/
+ /* Run Transceive blocking */
+ ret = rfalTransceiveBlockingTxRx( &dummy,
+ 0,
+ rxBuf,
+ rxBufLen,
+ actLen,
+ ( RFAL_TXRX_FLAGS_CRC_TX_MANUAL | RFAL_TXRX_FLAGS_CRC_RX_KEEP | RFAL_TXRX_FLAGS_AGC_ON ),
+ rfalConv64fcTo1fc(ISO15693_NO_RESPONSE_TIME), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ret;
+}
+
+#endif /* RFAL_FEATURE_NFCV */
+
+#if RFAL_FEATURE_NFCF
+
+/*******************************************************************************/
+ReturnCode rfalFeliCaPoll( rfalFeliCaPollSlots slots, uint16_t sysCode, uint8_t reqCode, rfalFeliCaPollRes* pollResList, uint8_t pollResListSize, uint8_t *devicesDetected,
+ uint8_t *collisionsDetected, SPI* mspiChannel, ST25R3911* mST25,
+ DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ uint8_t frame[RFAL_FELICA_POLL_REQ_LEN - RFAL_FELICA_LEN_LEN]; /* LEN is added by ST25R3911 automatically */
+ uint16_t actLen;
+ uint8_t frameIdx;
+ uint8_t devDetected;
+ uint8_t colDetected;
+ rfalEHandling curHandling;
+
+ int index = (int)slots;
+
+ /* Check if RFAL is properly initialized */
+ if( (gRFAL.state < RFAL_STATE_MODE_SET) || ( gRFAL.mode != RFAL_MODE_POLL_NFCF ) )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ frameIdx = 0;
+ colDetected = 0;
+ devDetected = 0;
+
+ /*******************************************************************************/
+ /* Compute SENSF_REQ frame */
+ frame[frameIdx++] = FELICA_CMD_POLLING; /* CMD: SENF_REQ */
+ frame[frameIdx++] = (uint8_t)(sysCode >> 8); /* System Code (SC) */
+ frame[frameIdx++] = (uint8_t)(sysCode & 0xFF); /* System Code (SC) */
+ frame[frameIdx++] = reqCode; /* Communication Parameter Request (RC)*/
+ frame[frameIdx++] = (uint8_t)slots; /* TimeSlot (TSN) */
+
+
+ /*******************************************************************************/
+ /* NRT should not stop on reception - Use EMVCo mode to run NRT in nrt_emv *
+ * ERRORHANDLING_EMVCO has no special handling for NFC-F mode */
+ curHandling = gRFAL.conf.eHandling;
+ rfalSetErrorHandling( RFAL_ERRORHANDLING_EMVCO );
+
+ /*******************************************************************************/
+ /* Run transceive blocking,
+ * Calculate Total Response Time in(64/fc):
+ * 512 PICC process time + (n * 256 Time Slot duration) */
+ ret = rfalTransceiveBlockingTx( frame,
+ frameIdx,
+ (uint8_t*)gRFAL.nfcfData.pollResponses,
+ RFAL_FELICA_POLL_RES_LEN,
+ &actLen,
+ (RFAL_TXRX_FLAGS_DEFAULT),
+ rfalConv64fcTo1fc( RFAL_FELICA_POLL_DELAY_TIME + (RFAL_FELICA_POLL_SLOT_TIME * (slots + 1)) ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* If Tx OK, Wait for all responses, store them as soon as they appear */
+ if( ret == ERR_NONE )
+ {
+ do
+ {
+ ret = rfalTransceiveBlockingRx( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( ret == ERR_TIMEOUT )
+ {
+ /* Upon timeout the full Poll Delay + (Slot time)*(slots) has expired */
+ break;
+ }
+ else
+ {
+ /* Reception done, reEnabled Rx for following Slot */
+ mST25 -> executeCommand( ST25R3911_CMD_UNMASK_RECEIVE_DATA, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_SQUELCH, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* If the reception was OK, new device found */
+ if( ret == ERR_NONE )
+ {
+ devDetected++;
+
+ /* Overwrite the Transceive context for the next reception */
+ gRFAL.TxRx.ctx.rxBuf = (uint8_t*)gRFAL.nfcfData.pollResponses[devDetected];
+ }
+ /* If the reception was not OK, mark as collision */
+ else
+ {
+ colDetected++;
+ }
+
+ /* Check whether NRT has expired meanwhile */
+ if( st25r3911CheckReg( ST25R3911_REG_REGULATOR_RESULT, ST25R3911_REG_REGULATOR_RESULT_nrt_on, 0x00, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ break;
+ }
+ }
+
+ /* Jump again into transceive Rx state for the following reception */
+ gRFAL.TxRx.status = ERR_BUSY;
+ gRFAL.state = RFAL_STATE_TXRX;
+ gRFAL.TxRx.state = RFAL_TXRX_STATE_RX_IDLE;
+
+ }while(index--);
+ }
+
+ /*******************************************************************************/
+ /* Restore NRT to normal mode - back to previous error handling */
+ rfalSetErrorHandling( curHandling );
+
+ /*******************************************************************************/
+ /* Assign output parameters if requested */
+
+ if( (pollResList != NULL) && (pollResListSize > 0) && (devDetected > 0) )
+ {
+ ST_MEMCPY( pollResList, gRFAL.nfcfData.pollResponses, (RFAL_FELICA_POLL_RES_LEN * MIN(pollResListSize, devDetected) ) );
+ }
+
+ if( devicesDetected != NULL )
+ {
+ *devicesDetected = devDetected;
+ }
+
+ if( collisionsDetected != NULL )
+ {
+ *collisionsDetected = colDetected;
+ }
+ uint16_t ERR_NONEUI = ERR_NONE;
+ return (( colDetected || devDetected ) ? ERR_NONEUI : ret);
+}
+
+#endif /* RFAL_FEATURE_NFCF */
+
+
+/*****************************************************************************
+ * Listen Mode *
+ *****************************************************************************/
+
+
+
+/*******************************************************************************/
+bool rfalIsExtFieldOn( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ return st25r3911CheckReg(ST25R3911_REG_AUX_DISPLAY, ST25R3911_REG_AUX_DISPLAY_efd_o, ST25R3911_REG_AUX_DISPLAY_efd_o, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalListenStart( uint32_t lmMask, rfalLmConfPA *confA, rfalLmConfPB *confB,
+ rfalLmConfPF *confF, uint8_t *rxBuf, uint16_t rxBufLen, uint16_t *rxLen,
+ SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ NO_WARNING(confA);
+ NO_WARNING(confB);
+ NO_WARNING(confF);
+
+
+ gRFAL.Lm.state = RFAL_LM_STATE_NOT_INIT;
+
+
+ /*******************************************************************************/
+ if( (lmMask & RFAL_LM_MASK_NFCA) || (lmMask & RFAL_LM_MASK_NFCB) || (lmMask & RFAL_LM_MASK_NFCF) )
+ {
+ return ERR_NOTSUPP;
+ }
+
+
+
+ /*******************************************************************************/
+ if( (lmMask & RFAL_LM_MASK_ACTIVE_P2P) )
+ {
+ gRFAL.state = RFAL_STATE_LM;
+
+ gRFAL.Lm.rxBuf = rxBuf;
+ gRFAL.Lm.rxBufLen = rxBufLen;
+ gRFAL.Lm.rxLen = rxLen;
+ *gRFAL.Lm.rxLen = 0;
+ gRFAL.Lm.dataFlag = false;
+
+ /* On Bit Rate Detection Mode ST25R391x will filter incoming frames during MRT time starting on External Field On event, use 512/fc steps */
+ mST25 -> writeRegister( ST25R3911_REG_MASK_RX_TIMER, rfalConv1fcTo512fc( RFAL_LM_GT ), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Restore default settings on NFCIP1 mode, Receiving parity + CRC bits and manual Tx Parity*/
+ st25r3911ClrRegisterBits( ST25R3911_REG_ISO14443A_NFC,
+ (ST25R3911_REG_ISO14443A_NFC_no_tx_par | ST25R3911_REG_ISO14443A_NFC_no_rx_par | ST25R3911_REG_ISO14443A_NFC_nfc_f0),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable External Field Detector */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable Receiver */
+ st25r3911ChangeRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_rx_en, ST25R3911_REG_OP_CONTROL_rx_en,
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Set Analog configurations for generic Listen mode */
+ /* Not on SetState(POWER OFF) as otherwise would be applied on every Field Event */
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_TX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ rfalSetAnalogConfig( (RFAL_ANALOG_CONFIG_LISTEN | RFAL_ANALOG_CONFIG_TECH_AP2P | RFAL_ANALOG_CONFIG_BITRATE_COMMON | RFAL_ANALOG_CONFIG_RX), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Initialize as POWER_OFF and set proper mode in RF Chip */
+ rfalListenSetState( RFAL_LM_STATE_POWER_OFF, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ return ERR_REQUEST; /* Listen Start called but no mode was enabled */
+ }
+
+ return ERR_NONE;
+}
+
+
+
+/*******************************************************************************/
+static ReturnCode rfalRunListenModeWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ volatile uint32_t irqs;
+ uint8_t tmp;
+
+ if( gRFAL.state != RFAL_STATE_LM )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ switch( gRFAL.Lm.state )
+ {
+ /*******************************************************************************/
+ case RFAL_LM_STATE_POWER_OFF:
+
+ irqs = st25r3911GetInterrupt( ( ST25R3911_IRQ_MASK_EON ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_EON) )
+ {
+ rfalListenSetState( RFAL_LM_STATE_IDLE, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ break;
+ }
+ /* fall through */
+
+
+ /*******************************************************************************/
+ case RFAL_LM_STATE_IDLE:
+
+ irqs = st25r3911GetInterrupt( ( ST25R3911_IRQ_MASK_NFCT | ST25R3911_IRQ_MASK_RXE | ST25R3911_IRQ_MASK_EOF ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ if( (irqs & ST25R3911_IRQ_MASK_NFCT) )
+ {
+ /* Retrieve bitrate detected */
+ mST25 -> readRegister( ST25R3911_REG_NFCIP1_BIT_RATE, (uint8_t*)&gRFAL.Lm.brDetected, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ // rfalBitRate test = RFAL_BR_1695;
+ gRFAL.Lm.brDetected = (rfalBitRate)((int)gRFAL.Lm.brDetected >> ST25R3911_REG_NFCIP1_BIT_RATE_nfc_rate_shift);
+ //(rfalBitRate) ST25R3911_REG_NFCIP1_BIT_RATE_nfc_rate_shift;
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_RXE) && (gRFAL.Lm.brDetected != RFAL_BR_KEEP) )
+ {
+ irqs = st25r3911GetInterrupt( ( ST25R3911_IRQ_MASK_RXE | ST25R3911_IRQ_MASK_EOF | ST25R3911_IRQ_MASK_CRC | ST25R3911_IRQ_MASK_PAR | ST25R3911_IRQ_MASK_ERR2 | ST25R3911_IRQ_MASK_ERR1 ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ if( (irqs & ST25R3911_IRQ_MASK_CRC) || (irqs & ST25R3911_IRQ_MASK_PAR) || (irqs & ST25R3911_IRQ_MASK_ERR1) )
+ {
+ /* nfc_ar may have triggered RF Collision Avoidance, disable it before executing Clear (Stop All activities) */
+ st25r3911ClrRegisterBits( ST25R3911_REG_MODE, ST25R3911_REG_MODE_nfc_ar, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_FIFO, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> executeCommand( ST25R3911_CMD_UNMASK_RECEIVE_DATA, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911SetRegisterBits( ST25R3911_REG_MODE, ST25R3911_REG_MODE_nfc_ar, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911ClrRegisterBits(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ break; /* A bad reception occurred, remain in same state */
+ }
+
+ /* Retrieve received data */
+ mST25 -> readRegister(ST25R3911_REG_FIFO_RX_STATUS1, &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ *gRFAL.Lm.rxLen = tmp;
+
+ mST25 -> readFifo( gRFAL.Lm.rxBuf, MIN( *gRFAL.Lm.rxLen, rfalConvBitsToBytes(gRFAL.Lm.rxBufLen) ), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Check if the data we got has at least the CRC and remove it, otherwise leave at 0 */
+ *gRFAL.Lm.rxLen -= ((*gRFAL.Lm.rxLen > RFAL_CRC_LEN) ? RFAL_CRC_LEN : *gRFAL.Lm.rxLen);
+ *gRFAL.Lm.rxLen = rfalConvBytesToBits( *gRFAL.Lm.rxLen );
+ gRFAL.Lm.dataFlag = true;
+
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+ }
+ else if( (irqs & ST25R3911_IRQ_MASK_EOF) && (!gRFAL.Lm.dataFlag) )
+ {
+ rfalListenSetState( RFAL_LM_STATE_POWER_OFF, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ break;
+
+ /*******************************************************************************/
+ case RFAL_LM_STATE_READY_F:
+ case RFAL_LM_STATE_READY_A:
+ case RFAL_LM_STATE_ACTIVE_A:
+ case RFAL_LM_STATE_ACTIVE_Ax:
+ case RFAL_LM_STATE_SLEEP_A:
+ case RFAL_LM_STATE_SLEEP_B:
+ case RFAL_LM_STATE_SLEEP_AF:
+ case RFAL_LM_STATE_READY_Ax:
+ case RFAL_LM_STATE_CARDEMU_4A:
+ case RFAL_LM_STATE_CARDEMU_4B:
+ case RFAL_LM_STATE_CARDEMU_3:
+ return ERR_INTERNAL;
+
+ case RFAL_LM_STATE_TARGET_F:
+ case RFAL_LM_STATE_TARGET_A:
+ break;
+
+ /*******************************************************************************/
+ default:
+ return ERR_WRONG_STATE;
+ }
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalListenStop( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ gRFAL.Lm.state = RFAL_LM_STATE_NOT_INIT;
+
+ /*Check if Observation Mode was enabled and disable it on ST25R391x */
+ rfalCheckDisableObsMode();
+
+ /* Disable Receiver and Transmitter */
+ rfalFieldOff( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* As there's no Off mode, set default value: ISO14443A with automatic RF Collision Avoidance Off */
+ mST25 -> writeRegister( ST25R3911_REG_MODE, (ST25R3911_REG_MODE_om_iso14443a | ST25R3911_REG_MODE_nfc_ar_off), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalListenSleepStart( rfalLmState sleepSt, uint8_t *rxBuf, uint16_t rxBufLen, uint16_t *rxLen )
+{
+ NO_WARNING(sleepSt);
+ NO_WARNING(rxBuf);
+ NO_WARNING(rxBufLen);
+ NO_WARNING(rxLen);
+
+ return ERR_NOTSUPP;
+}
+
+
+/*******************************************************************************/
+rfalLmState rfalListenGetState( bool *dataFlag, rfalBitRate *lastBR )
+{
+ /* Allow state retrieval even if gRFAL.state != RFAL_STATE_LM so *
+ * that this Lm state can be used by caller after activation */
+
+ if( lastBR != NULL )
+ {
+ *lastBR = gRFAL.Lm.brDetected;
+ }
+
+ if( dataFlag != NULL )
+ {
+ *dataFlag = gRFAL.Lm.dataFlag;
+ }
+
+ return gRFAL.Lm.state;
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalListenSetState( rfalLmState newSt, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ ReturnCode ret;
+ uint8_t tmp;
+
+ /*rfalLogD( "RFAL: curState: %02X newState: %02X \r\n", gRFAL.Lm.state, newSt );*/
+
+ /* SetState clears the Data flag */
+ gRFAL.Lm.dataFlag = false;
+ ret = ERR_NONE;
+
+ /*******************************************************************************/
+ switch( newSt )
+ {
+ /*******************************************************************************/
+ case RFAL_LM_STATE_POWER_OFF:
+
+ /*******************************************************************************/
+ /* Disable nfc_ar as RF Collision Avoidance timer may have already started */
+ st25r3911ClrRegisterBits( ST25R3911_REG_MODE, ST25R3911_REG_MODE_nfc_ar, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_FIFO, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Ensure that our field is Off, as automatic response RF Collision Avoidance may have been triggered */
+ st25r3911ClrRegisterBits(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* Ensure that the NFCIP1 mode is disabled */
+ st25r3911ClrRegisterBits( ST25R3911_REG_ISO14443A_NFC, ST25R3911_REG_ISO14443A_NFC_nfc_f0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* Clear and enable required IRQs */
+ st25r3911DisableInterrupts( ST25R3911_IRQ_MASK_ALL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
+
+
+ st25r3911GetInterrupt( (ST25R3911_IRQ_MASK_NFCT | ST25R3911_IRQ_MASK_RXS | ST25R3911_IRQ_MASK_CRC | ST25R3911_IRQ_MASK_ERR1 |
+ ST25R3911_IRQ_MASK_ERR2 | ST25R3911_IRQ_MASK_PAR | ST25R3911_IRQ_MASK_EON | ST25R3911_IRQ_MASK_EOF | ST25R3911_IRQ_MASK_RXE ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata TDB */
+ /* RXS and NFCT are triggered very close (specially in higher bitrates). *
+ * If the interrupt status register is being read when NFCT is trigerred, the *
+ * IRQ line might go low and NFCT is not signalled on the status register. *
+ * For initial bitrate detection, mask RXS, only wait for NFCT and RXE. */
+ /*******************************************************************************/
+
+ st25r3911EnableInterrupts( (ST25R3911_IRQ_MASK_NFCT | ST25R3911_IRQ_MASK_CRC | ST25R3911_IRQ_MASK_ERR1 |
+ ST25R3911_IRQ_MASK_ERR2 | ST25R3911_IRQ_MASK_PAR | ST25R3911_IRQ_MASK_EON | ST25R3911_IRQ_MASK_EOF | ST25R3911_IRQ_MASK_RXE ),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* Clear the bitRate previously detected */
+ gRFAL.Lm.brDetected = RFAL_BR_KEEP;
+
+
+ /*******************************************************************************/
+ /* Apply the BitRate detection mode mode */
+ mST25 -> writeRegister( ST25R3911_REG_MODE,
+ (ST25R3911_REG_MODE_targ_targ | ST25R3911_REG_MODE_om_bit_rate_detection | ST25R3911_REG_MODE_nfc_ar_on),
+ mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.3 */
+ /* Even though bitrate is going to be detected the bitrate must be set to *
+ * 106kbps to get correct 106kbps parity */
+ mST25 -> writeRegister( ST25R3911_REG_BIT_RATE, (ST25R3911_REG_BIT_RATE_txrate_106 | ST25R3911_REG_BIT_RATE_rxrate_106),
+ mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ /*******************************************************************************/
+
+
+ /*******************************************************************************/
+ /* Check if external Field is already On */
+ if( rfalIsExtFieldOn( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ return rfalListenSetState( RFAL_LM_STATE_IDLE, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; /* Set IDLE state */
+ }
+ break;
+
+ /*******************************************************************************/
+ case RFAL_LM_STATE_IDLE:
+
+ /*******************************************************************************/
+ /* In Active P2P the Initiator may: Turn its field On; LM goes into IDLE state;
+ * Initiator sends an unexpected frame raising a Protocol error; Initiator
+ * turns its field Off and ST25R3911 performs the automatic RF Collision
+ * Avoidance keeping our field On; upon a Protocol error upper layer sets
+ * again the state to IDLE to clear dataFlag and wait for next data.
+ *
+ * Ensure that when upper layer calls SetState(IDLE), it restores initial
+ * configuration and that check whether an external Field is still present */
+
+ /* nfc_ar may have triggered RF Collision Avoidance, disable it before executing Clear (Stop All activities) */
+ st25r3911ClrRegisterBits( ST25R3911_REG_MODE, ST25R3911_REG_MODE_nfc_ar, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_FIFO, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911SetRegisterBits( ST25R3911_REG_MODE, ST25R3911_REG_MODE_nfc_ar, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Ensure that our field is Off, as automatic response RF Collision Avoidance may have been triggered */
+ st25r3911ClrRegisterBits(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_tx_en , mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* Load 2nd/3rd stage gain setting from registers into the receiver */
+ mST25 -> executeCommand( ST25R3911_CMD_CLEAR_SQUELCH, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /*******************************************************************************/
+ /* REMARK: Silicon workaround ST25R3911 Errata #1.4 */
+ /* Enable; disable; enable mixer to make sure the digital decoder is in *
+ * high state. This also switches the demodulator to mixer mode. */
+ mST25 -> readRegister( ST25R3911_REG_RX_CONF1, &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> writeRegister( ST25R3911_REG_RX_CONF1, (tmp | ST25R3911_REG_RX_CONF1_amd_sel), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> writeRegister( ST25R3911_REG_RX_CONF1, (tmp & ~ST25R3911_REG_RX_CONF1_amd_sel), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25 -> writeRegister( ST25R3911_REG_RX_CONF1, (tmp | ST25R3911_REG_RX_CONF1_amd_sel), mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ /*******************************************************************************/
+
+ /* ReEnable the receiver */
+ mST25 -> executeCommand( ST25R3911_CMD_UNMASK_RECEIVE_DATA, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+ /* If external Field is no longer detected go back to POWER_OFF */
+ if( !st25r3911CheckReg(ST25R3911_REG_AUX_DISPLAY, ST25R3911_REG_AUX_DISPLAY_efd_o, ST25R3911_REG_AUX_DISPLAY_efd_o, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) )
+ {
+ return rfalListenSetState( RFAL_LM_STATE_POWER_OFF, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; /* Set POWER_OFF state */
+ }
+
+ /*******************************************************************************/
+ /*Check if Observation Mode is enabled and set it on ST25R391x */
+ rfalCheckEnableObsModeRx();
+ break;
+
+ /*******************************************************************************/
+ case RFAL_LM_STATE_TARGET_A:
+ case RFAL_LM_STATE_TARGET_F:
+ /* States not handled by the LM, just keep state context */
+ break;
+
+ /*******************************************************************************/
+ case RFAL_LM_STATE_READY_F:
+ case RFAL_LM_STATE_CARDEMU_3:
+ case RFAL_LM_STATE_READY_Ax:
+ case RFAL_LM_STATE_READY_A:
+ case RFAL_LM_STATE_ACTIVE_Ax:
+ case RFAL_LM_STATE_ACTIVE_A:
+ case RFAL_LM_STATE_SLEEP_A:
+ case RFAL_LM_STATE_SLEEP_B:
+ case RFAL_LM_STATE_SLEEP_AF:
+ case RFAL_LM_STATE_CARDEMU_4A:
+ case RFAL_LM_STATE_CARDEMU_4B:
+ return ERR_NOTSUPP;
+
+ /*******************************************************************************/
+ default:
+ return ERR_WRONG_STATE;
+ }
+
+ gRFAL.Lm.state = newSt;
+
+ return ret;
+}
+
+
+/*******************************************************************************
+ * Wake-Up Mode *
+ *******************************************************************************/
+
+/*******************************************************************************/
+ReturnCode rfalWakeUpModeStart( void *config, ST25R3911* mST25, SPI* mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint8_t aux;
+ uint8_t reg;
+ uint32_t irqs;
+
+ /* The Wake-Up procedure is explained in detail in Application Note: AN4985 */
+
+ if( config == NULL)
+ {
+ gRFAL.wum.cfg.period = ST25R3911_WUM_PERIDOD_500MS;
+ gRFAL.wum.cfg.irqTout = false;
+
+ gRFAL.wum.cfg.indPha.enabled = true;
+ gRFAL.wum.cfg.indPha.delta = 3;
+ gRFAL.wum.cfg.indPha.reference = ST25R3911_WUM_REFRENCE_AUTO;
+ gRFAL.wum.cfg.indPha.autoAvg = true;
+
+
+ gRFAL.wum.cfg.cap.enabled = false;
+ gRFAL.wum.cfg.cap.delta = 3;
+ gRFAL.wum.cfg.cap.reference = ST25R3911_WUM_REFRENCE_AUTO;
+ gRFAL.wum.cfg.cap.autoAvg = true;
+
+
+
+ gRFAL.wum.cfg.indAmp.enabled = false;
+ gRFAL.wum.cfg.indAmp.delta = 3;
+ gRFAL.wum.cfg.indAmp.reference = ST25R3911_WUM_REFRENCE_AUTO;
+ gRFAL.wum.cfg.indAmp.autoAvg = true;
+ }
+ else
+ {
+ gRFAL.wum.cfg = *((st25r3911WakeUpConfig*)config);
+ }
+
+
+ if( gRFAL.wum.cfg.cap.enabled && (gRFAL.wum.cfg.indAmp.enabled || gRFAL.wum.cfg.indPha.enabled) )
+ {
+ return ERR_PARAM;
+ }
+
+ irqs = ST25R3911_IRQ_MASK_NONE;
+
+
+
+ ///// conf wake up timer and control register IRQ if diff larger that delta am -> 00000100
+
+ //mST25->writeRegister(ST25R3911_REG_WUP_TIMER_CONTROL, ST25R3911_REG_WUP_TIMER_CONTROL_wam, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+
+
+ /*******************************************************************************/
+ /* Prepare Wake-Up Timer Control Register */
+ reg = ((gRFAL.wum.cfg.period & 0x0F) << ST25R3911_REG_WUP_TIMER_CONTROL_shift_wut);
+ reg |= ((gRFAL.wum.cfg.period < ST25R3911_WUM_PERIDOD_100MS) ? ST25R3911_REG_WUP_TIMER_CONTROL_wur : 0x00);
+
+ if(gRFAL.wum.cfg.irqTout)
+ {
+ reg |= ST25R3911_REG_WUP_TIMER_CONTROL_wto;
+ irqs |= ST25R3911_IRQ_MASK_WT;
+ }
+
+ /*******************************************************************************/
+ /* Check if Inductive Amplitude is to be performed */
+ if( gRFAL.wum.cfg.indAmp.enabled )
+ {
+ aux = ((gRFAL.wum.cfg.indAmp.delta) << ST25R3911_REG_AMPLITUDE_MEASURE_CONF_shift_am_d);
+ aux |= (gRFAL.wum.cfg.indAmp.aaInclMeas ? ST25R3911_REG_AMPLITUDE_MEASURE_CONF_am_aam : 0x00);
+ aux |= ((gRFAL.wum.cfg.indAmp.aaWeight << ST25R3911_REG_AMPLITUDE_MEASURE_CONF_shift_am_aew) & ST25R3911_REG_AMPLITUDE_MEASURE_CONF_mask_am_aew);
+ aux |= (gRFAL.wum.cfg.indAmp.autoAvg ? ST25R3911_REG_AMPLITUDE_MEASURE_CONF_am_ae : 0x00);
+
+ mST25->writeRegister(ST25R3911_REG_AMPLITUDE_MEASURE_CONF, aux, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Only need to set the reference if not using Auto Average */
+ if( !gRFAL.wum.cfg.indAmp.autoAvg )
+ {
+ if( gRFAL.wum.cfg.indAmp.reference == ST25R3911_WUM_REFRENCE_AUTO )
+ {
+ st25r3911MeasureRF( &aux, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25->writeRegister(ST25R3911_REG_AMPLITUDE_MEASURE_REF, aux, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+ mST25->writeRegister(ST25R3911_REG_AMPLITUDE_MEASURE_REF, gRFAL.wum.cfg.indAmp.reference, mspiChannel, gpio_cs,
+ IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ }
+
+ reg |= ST25R3911_REG_WUP_TIMER_CONTROL_wam;
+ irqs |= ST25R3911_IRQ_MASK_WAM;
+ }
+
+ /*******************************************************************************/
+ /* Check if Inductive Phase is to be performed */
+ if( gRFAL.wum.cfg.indPha.enabled )
+ {
+ aux = ((gRFAL.wum.cfg.indPha.delta) << ST25R3911_REG_PHASE_MEASURE_CONF_shift_pm_d);
+ aux |= (gRFAL.wum.cfg.indPha.aaInclMeas ? ST25R3911_REG_PHASE_MEASURE_CONF_pm_aam : 0x00);
+ aux |= ((gRFAL.wum.cfg.indPha.aaWeight << ST25R3911_REG_PHASE_MEASURE_CONF_shift_pm_aew) & ST25R3911_REG_PHASE_MEASURE_CONF_mask_pm_aew);
+ aux |= (gRFAL.wum.cfg.indPha.autoAvg ? ST25R3911_REG_PHASE_MEASURE_CONF_pm_ae : 0x00);
+
+ mST25->writeRegister(ST25R3911_REG_PHASE_MEASURE_CONF, aux, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Only need to set the reference if not using Auto Average */
+ if( !gRFAL.wum.cfg.indPha.autoAvg )
+ {
+ if( gRFAL.wum.cfg.indPha.reference == ST25R3911_WUM_REFRENCE_AUTO )
+ {
+ st25r3911MeasureAntennaResonance( &aux, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25->writeRegister(ST25R3911_REG_PHASE_MEASURE_REF, aux, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ else
+ {
+
+ mST25->writeRegister(ST25R3911_REG_PHASE_MEASURE_REF, gRFAL.wum.cfg.indPha.reference, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ }
+ }
+
+ reg |= ST25R3911_REG_WUP_TIMER_CONTROL_wph;
+ irqs |= ST25R3911_IRQ_MASK_WPH;
+ }
+
+ /*******************************************************************************/
+ /* Check if Capacitive is to be performed */
+ if( gRFAL.wum.cfg.cap.enabled )
+ {
+ return ERR_NOT_IMPLEMENTED;
+ }
+
+ /* Disable External Field Detector */
+ st25r3911ClrRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable and clear all interrupts except Wake-Up IRQs */
+ st25r3911DisableInterrupts( ST25R3911_IRQ_MASK_ALL, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911GetInterrupt( irqs, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911EnableInterrupts( irqs, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Enable Low Power Wake-Up Mode */
+ mST25->writeRegister(ST25R3911_REG_WUP_TIMER_CONTROL, reg, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ mST25->writeRegister(ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+
+
+ gRFAL.wum.state = RFAL_WUM_STATE_ENABLED;
+ gRFAL.state = RFAL_STATE_WUM;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************/
+bool rfalWakeUpModeHasWoke( ST25R3911* mST25, SPI* mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+
+ return (gRFAL.wum.state == RFAL_WUM_STATE_ENABLED_WOKE);
+}
+
+
+/*******************************************************************************/
+static void rfalRunWakeUpModeWorker( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ uint32_t irqs;
+
+ if( gRFAL.state != RFAL_STATE_WUM )
+ {
+ return;
+ }
+
+ switch( gRFAL.wum.state )
+ {
+ case RFAL_WUM_STATE_ENABLED:
+ case RFAL_WUM_STATE_ENABLED_WOKE:
+
+ irqs = st25r3911GetInterrupt( ( ST25R3911_IRQ_MASK_WT | ST25R3911_IRQ_MASK_WAM | ST25R3911_IRQ_MASK_WPH | ST25R3911_IRQ_MASK_WCAP ), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ if( irqs == ST25R3911_IRQ_MASK_NONE )
+ {
+ break; /* No interrupt to process */
+ }
+
+ /*******************************************************************************/
+ /* Check and mark which measurement(s) cause interrupt */
+ if(irqs & ST25R3911_IRQ_MASK_WAM)
+ {
+ gRFAL.wum.state = RFAL_WUM_STATE_ENABLED_WOKE;
+ }
+
+ if(irqs & ST25R3911_IRQ_MASK_WPH)
+ {
+ gRFAL.wum.state = RFAL_WUM_STATE_ENABLED_WOKE;
+ }
+
+ if(irqs & ST25R3911_IRQ_MASK_WCAP)
+ {
+ gRFAL.wum.state = RFAL_WUM_STATE_ENABLED_WOKE;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+/*******************************************************************************/
+ReturnCode rfalWakeUpModeStop( SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if( gRFAL.wum.state == RFAL_WUM_STATE_NOT_INIT )
+ {
+ return ERR_WRONG_STATE;
+ }
+
+ gRFAL.wum.state = RFAL_WUM_STATE_NOT_INIT;
+
+ /* Re-Enable External Field Detector */
+ st25r3911SetRegisterBits( ST25R3911_REG_AUX, ST25R3911_REG_AUX_en_fd, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Disable Wake-Up Mode */
+ st25r3911ClrRegisterBits( ST25R3911_REG_OP_CONTROL, ST25R3911_REG_OP_CONTROL_wu, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ st25r3911DisableInterrupts( (ST25R3911_IRQ_MASK_WT | ST25R3911_IRQ_MASK_WAM | ST25R3911_IRQ_MASK_WPH | ST25R3911_IRQ_MASK_WCAP),
+ mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ /* Re-Enable the Oscillator */
+ st25r3911OscOn( mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ return ERR_NONE;
+}
+
+
+/*******************************************************************************
+ * RF Chip *
+ *******************************************************************************/
+
+/*******************************************************************************/
+ReturnCode rfalChipWriteReg( uint16_t reg, uint8_t* values, uint8_t len, SPI * mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if( !st25r3911IsRegValid( (uint8_t)reg) )
+ {
+ return ERR_PARAM;
+ }
+
+ mST25 -> writeMultipleRegisters( (uint8_t)reg, values, len, mspiChannel,mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipReadReg( uint16_t reg, uint8_t* values, uint8_t len, SPI * mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if( !st25r3911IsRegValid( (uint8_t)reg) )
+ {
+ return ERR_PARAM;
+ }
+
+ mST25 -> readMultipleRegisters( (uint8_t)reg, values, len, mspiChannel,mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipExecCmd( uint16_t cmd, SPI * mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ if( !st25r3911IsCmdValid( (uint8_t)cmd) )
+ {
+ return ERR_PARAM;
+ }
+
+ mST25 -> executeCommand( (uint8_t) cmd, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipWriteTestReg( uint16_t reg, uint8_t value, SPI * mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ st25r3911WriteTestRegister( (uint8_t)reg, value, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipReadTestReg( uint16_t reg, uint8_t* value, SPI * mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ st25r3911ReadTestRegister( (uint8_t)reg, value, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipChangeRegBits( uint16_t reg, uint8_t valueMask, uint8_t value, SPI* mspiChannel,
+ ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ st25r3911ChangeRegisterBits( (uint8_t)reg, valueMask, value, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+/*******************************************************************************/
+ReturnCode rfalChipChangeTestRegBits( uint16_t reg, uint8_t valueMask, uint8_t value, SPI * mspiChannel, ST25R3911* mST25,
+ DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
+{
+ st25r3911ChangeTestRegisterBits( (uint8_t)reg, valueMask, value, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ return ERR_NONE;
+}
+
+
+
+void rfalSetWumState( void )
+{
+ gRFAL.wum.state = RFAL_WUM_STATE_ENABLED_WOKE;
+}
+
+
+/*******************************************************************************/
+/* extern uint8_t invalid_size_of_stream_configs[(sizeof(struct st25r3911StreamConfig) == sizeof(struct iso15693StreamConfig))?1:(-1)]; */