/*
 * Copyright 2010-2014,2018-2020 NXP
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef _PHNXPESEPROTO7816_3_H_
#define _PHNXPESEPROTO7816_3_H_
#include <phNxpEse_Internal.h>


/**
 * \addtogroup ISO7816-3_protocol_lib
 * \brief 7816-3 PROTOCOL STACK
 * @{ */

/********************* Definitions and structures *****************************/

/*!
 * \brief S-Frame types used in 7816-3 protocol stack
 */
typedef enum sFrameTypes {
      RESYNCH_REQ = 0x00,/*!< Re-synchronisation request between host and ESE */
      RESYNCH_RSP = 0x20,/*!< Re-synchronisation response between host and ESE */
      IFSC_REQ = 0x01,/*!< IFSC size request */
      IFSC_RES = 0x21,/*!< IFSC size response */
      ABORT_REQ = 0x02,/*!< Abort request */
      ABORT_RES = 0x22,/*!< Abort response */
      WTX_REQ = 0x03,/*!< WTX request */
      WTX_RSP = 0x23,/*!< WTX response */
#if defined(T1oI2C_UM11225)
      INTF_RESET_REQ = 0x0F,/*!< Interface reset request */
      INTF_RESET_RSP = 0x2F,/*!< Interface reset response */
      PROP_END_APDU_REQ = 0x05,/*!< Proprietary Enf of APDU request */
      PROP_END_APDU_RSP = 0x25,/*!< Proprietary Enf of APDU response */
      CHIP_RESET_REQ = 0x06, /*chip reset request*/
      CHIP_RESET_RES = 0x26, /*chip reset response*/
      ATR_REQ = 0x07, /* get ATR request*/
      ATR_RES = 0x27, /*get ATR response*/
#elif defined(T1oI2C_GP1_0)
      SWR_REQ = 0x0F,/*!< Software reset request */
      SWR_RSP = 0x2F,/*!< Software reset response */
      COLD_RESET_REQ = 0x1E, /*cold reset request*/
      COLD_RESET_RES = 0x3E, /*cold reset response*/
      RELEASE_REQ = 0x06, /* Release  request*/
      RELEASE_RES = 0x26, /* Release  response*/
      CIP_REQ = 0x04,/*!< Get CIP request */
      CIP_RES = 0x24,/*!< Get CIP response */
#endif
      INVALID_REQ_RES /*!< Invalid request */
  } sFrameTypes_t;

/*!
 * \brief R-Frame types used in 7816-3 protocol stack
 */
typedef enum rFrameTypes
{
  RACK = 0x01, /*!< R-frame Acknowledgement frame indicator */
  RNACK = 0x02 /*!< R-frame Negative-Acknowledgement frame indicator */
}rFrameTypes_t;

/*!
 * \brief R-Frame error types used 7816-3 protocol stack
 */
typedef enum rFrameErrorTypes
{
  NO_ERROR, /*!< R-frame received with success */
  PARITY_ERROR, /*!< R-frame received with parity error */
  OTHER_ERROR, /*!< R-frame received with Other error */
  SOF_MISSED_ERROR, /*!< R-frame received with frame missing error */
  UNDEFINED_ERROR /*!< R-frame received with some undefined error */
}rFrameErrorTypes_t;

/*!
 * \brief Frame types used in 7816-3 protocol stack
 */
typedef enum phNxpEseProto7816_FrameTypes
{
  IFRAME,/*!< Frame type: I-frame */
  SFRAME,/*!< Frame type: S-frame */
  RFRAME,/*!< Frame type: R-frame */
  INVALID,/*!< Frame type: Invalid */
  UNKNOWN /*!< Frame type: Unknown */
}phNxpEseProto7816_FrameTypes_t;

/*!
 * \brief 7816-3 protocol stack states
 */
typedef enum phNxpEseProto7816_State
{
 PH_NXP_ESE_PROTO_7816_IDLE,/*!< 7816-3 protocol state: IDLE */
 PH_NXP_ESE_PROTO_7816_TRANSCEIVE,/*!< 7816-3 protocol state: TRANSCEIVE going on */
 PH_NXP_ESE_PROTO_7816_DEINIT /*!< 7816-3 protocol state: DeInit going on */
}phNxpEseProto7816_State_t;

/*!
 * \brief 7816-3 protocol transceive states
 */
typedef enum phNxpEseProto7816_TransceiveStates
{
  IDLE_STATE, /*!< 7816-3 protocol transceive state: IDLE */
  SEND_IFRAME, /*!< 7816-3 protocol transceive state: I-frame to be sent */
  SEND_R_NACK, /*!< 7816-3 protocol transceive state: R-NACK frame to be sent */
  SEND_R_ACK, /*!< 7816-3 protocol transceive state: R-ACK frame to be sent */
  SEND_S_RSYNC, /*!< 7816-3 protocol transceive state: S-frame re-synchronisation command to be sent */
#if defined(T1oI2C_UM11225)
  SEND_S_INTF_RST, /*!< 7816-3 protocol transceive state: S-frame interface reset command to be sent */
  SEND_S_EOS, /*!< 7816-3 protocol transceive state: S-frame end of session command to be sent */
  SEND_S_ATR, /*!< 7816-3 protocol transceive state: S-frame ATR command to be sent */
  SEND_S_CHIP_RST, /*!< 7816-3 protocol transceive state: S-frame chip reset command to be sent */
#elif defined(T1oI2C_GP1_0)
  SEND_S_SWR, /*!< 7816-3 protocol transceive state: S-frame Software reset command to be sent */
  SEND_S_RELEASE, /*!< 7816-3 protocol transceive state: S-frame RELEASE command to be sent */
  SEND_S_CIP, /*!< 7816-3 protocol transceive state: S-frame CIP command to be sent */
  SEND_S_COLD_RST, /*!< 7816-3 protocol transceive state: S-frame cold reset command to be sent */
#endif
  SEND_S_WTX_REQ, /*!< 7816-3 protocol transceive state: S-frame WTX command to be sent */
  SEND_S_WTX_RSP, /*!< 7816-3 protocol transceive state: S-frame WTX response to be sent */

}phNxpEseProto7816_TransceiveStates_t;

/*!
 * \brief I-frame information structure for ISO 7816-3
 *
 * This structure holds the  information of I-frame used for sending
 * and receiving the frame packet.
 *
 */
typedef struct iFrameInfo
{
  bool_t isChained; /*!< I-frame: Indicates if more frames to follow in the same data packet or not */
  uint8_t *p_data; /*!< I-frame: Actual data (Information field (INF)) */
  uint8_t seqNo; /*!< I-frame: Sequence number of the I-frame */
  uint32_t maxDataLen; /*!< I-frame: Maximum data length to be allowed in a single I-frame */
  uint32_t dataOffset; /*!< I-frame: Offset to the actual data(INF) for the current frame of the packet */
  uint32_t totalDataLen; /*!< I-frame: Total data left in the packet, used to set the chained flag/calculating offset */
  uint32_t sendDataLen; /*!< I-frame: the length of the I-frame actual data */
}iFrameInfo_t;

/*!
 * \brief S-frame information structure for ISO 7816-3
 *
 * This structure holds the  information of S-frame used for sending
 * and receiving the frame packet.
 *
 */
typedef struct sFrameInfo
{
  sFrameTypes_t sFrameType;/*!< S-frame: Type of S-frame cmd/rsp */
}sFrameInfo_t;

/*!
 * \brief R-frame information structure for ISO 7816-3
 *
 * This structure holds the  information of R-frame used for sending
 * and receiving the frame packet.
 *
 */
typedef struct rFrameInfo
{
  uint8_t seqNo; /*!< R-frame: Sequence number of the expected I-frame */
  rFrameErrorTypes_t errCode; /*!< R-frame: Error type */
}rFrameInfo_t;

/*!
 * \brief Next/Last Tx information structure holding transceive data
 *
 * This structure holds the information of the next/last sent
 * I-frame/R-frame/S-frame depending on the frame type
 *
 */
typedef struct phNxpEseProto7816_NextTx_Info
{
    //union {
    iFrameInfo_t
        IframeInfo; /*!< Information of the I-frame to be send next or the last sent I-frame depending on the frame type */
    rFrameInfo_t
        RframeInfo; /*!< Information of the R-frame to be send next or the last sent R-frame depending on the frame type */
    sFrameInfo_t
        SframeInfo; /*!< Information of the S-frame to be send next or the last sent S-frame depending on the frame type */
                    //} f;
    phNxpEseProto7816_FrameTypes_t FrameType; /*!< Frame (I/R/S frames) type to be sent next */
}phNxpEseProto7816_NextTx_Info_t;

/*!
 * \brief Last sent Tx ransceive data
 *
 * This structure holds the information of the last sent
 * I-frame/R-frame/S-frame
 *
 */
typedef phNxpEseProto7816_NextTx_Info_t phNxpEseProto7816_LastTx_Info_t;

/*!
 * \brief Last Rx information structure holding transceive data
 *
 * This structure holds the information of the next/last sent
 * I-frame/R-frame/S-frame
 *
 */
typedef struct phNxpEseRx_Cntx
{
  iFrameInfo_t lastRcvdIframeInfo; /*!< I-frame: Last received frame */
  rFrameInfo_t lastRcvdRframeInfo; /*!< R-frame: Last received frame */
  sFrameInfo_t lastRcvdSframeInfo; /*!< S-frame: Last received frame */
  phNxpEseProto7816_FrameTypes_t lastRcvdFrameType; /*!< Last received frame type */
  phNxpEse_data *pRsp;
}phNxpEseRx_Cntx_t;

/*!
 * \brief 7816-3 protocol stack context structure
 *
 * This structure holds the complete information of the
 * 7816-3 protocol stack context
 *
 */
typedef struct phNxpEseProto7816
{
  phNxpEseProto7816_LastTx_Info_t phNxpEseLastTx_Cntx; /*!< Last transmitted frame information */
  phNxpEseProto7816_NextTx_Info_t phNxpEseNextTx_Cntx; /*!< Next frame to be transmitted */
  phNxpEseRx_Cntx_t phNxpEseRx_Cntx; /*!< Last received frame information */
  phNxpEseProto7816_TransceiveStates_t phNxpEseProto7816_nextTransceiveState; /*!< Next Transceive state. It determines the next
                                                                                                                                         action to be done from host */
  phNxpEseProto7816_State_t phNxpEseProto7816_CurrentState;/*!< Current protocol stack state */
  uint8_t recoveryCounter; /*!< Keeps track of number of error recovery done. Stack exits after it reaches max. count  */
  unsigned long int wtx_counter_limit; /*!< Max. WTX counter limit */
  unsigned long int wtx_counter; /*!< WTX count tracker */
  uint8_t timeoutCounter; /*!< Keeps track of number of timeout happened. Stack exits after it reaches max. count  */
  phNxpEseProto7816_FrameTypes_t lastSentNonErrorframeType; /*!< Copy of the last sent non-error frame type: R-ACK, S-frame, I-frame */
  unsigned long int rnack_retry_limit;
  unsigned long int rnack_retry_counter;
}phNxpEseProto7816_t;

/*!
 * \brief 7816-3 protocol stack init params
 *
 * This structure holds the parameters to be passed to open 7816-3 protocl stack instance
 *
 */
typedef struct phNxpEseProto7816InitParam
{
    unsigned long int wtx_counter_limit; /*!< WTX count limit */
    bool_t interfaceReset;               /*!< INTF reset required or not>*/
    unsigned long int rnack_retry_limit;
}phNxpEseProto7816InitParam_t;

/*!
 * \brief 7816-3 protocol PCB bit level structure
 *
 * This structure holds the bit level information of PCB byte
 * as per 7816-3 protocol
 *
 */
typedef struct phNxpEseProto7816_PCB_bits {
    uint8_t lsb :1; /*!< PCB: lsb */
    uint8_t bit2 :1; /*!< PCB: bit2 */
    uint8_t bit3 :1; /*!< PCB: bit3 */
    uint8_t bit4 :1; /*!< PCB: bit4 */
    uint8_t bit5 :1; /*!< PCB: bit5 */
    uint8_t bit6 :1; /*!< PCB: bit6 */
    uint8_t bit7 :1; /*!< PCB: bit7 */
    uint8_t msb :1; /*!< PCB: msb */
}phNxpEseProto7816_PCB_bits_t;

/*!
 * \brief 7816_3 protocol stack instance
 */
//phNxpEseProto7816_t phNxpEseProto7816_3_Var;

/*!
 * \brief Max. size of the frame that can be sent
 */
#define IFSC_SIZE_SEND  254
/*!
 * \brief Delay to be used before sending the next frame, after error reported by ESE
 */
#define DELAY_ERROR_RECOVERY 3500
/*!
 * \brief 7816-3 protocol frame header length
 */
#if defined(T1oI2C_UM11225)
  #define PH_PROTO_7816_HEADER_LEN 0x03 // LEN field is 1 byte
#elif defined(T1oI2C_GP1_0)
  #define PH_PROTO_7816_HEADER_LEN 0x04 // LEN field is 2 byte
#endif
/*!
 * \brief 7816-3 protocol frame CRC length
 */
#define PH_PROTO_7816_CRC_LEN  0x02
/*!
 * \brief 7816-3 Chaining flag bit for masking
 */
#define PH_PROTO_7816_CHAINING  0x20
/*!
 * \brief 7816-3 frame length offset
 */
#define PH_PROPTO_7816_FRAME_LENGTH_OFFSET 0x02
/*!
 * \brief 7816-3 S-block request command mask
 */
#define PH_PROTO_7816_S_BLOCK_REQ    0xC0
/*!
 * \brief 7816-3 S-block response mask
 */
#define PH_PROTO_7816_S_BLOCK_RSP    0xE0
/*!
 * \brief 7816-3 S-block reset command mask
 */
#define PH_PROTO_7816_S_RESET        0x0F
/*!
 * \brief 7816-3 S-block End of APDU cmd mask
 */
#define PH_PROTO_7816_S_END_OF_APDU  0x05
/*!
 * \brief 7816-3 S-block WTX mask
 */
#define PH_PROTO_7816_S_WTX          0x03
/*!
 * \brief 7816-3 S-block re-sync mask
 */
#define PH_PROTO_7816_S_RESYNCH      0x00
/*!
 * \brief 7816-3 protocol max. error retry counter
 */
#define PH_PROTO_7816_FRAME_RETRY_COUNT 10
/*!
 * \brief 7816-3 protocol max. WTX default count
 */
#define PH_PROTO_WTX_DEFAULT_COUNT   500
/*!
 * \brief 7816-3 protocol max. timeout retry count
 */
#define PH_PROTO_7816_TIMEOUT_RETRY_COUNT 1
/*!
 * \brief 7816-3 to represent magic number zero
 */
#define PH_PROTO_7816_VALUE_ZERO 0x00
/*!
 * \brief 7816-3 to represent magic number one
 */
#define PH_PROTO_7816_VALUE_ONE 0x01
/*!
 * \brief 7816-3 for max retry for CRC error
 */
#define MAX_RNACK_RETRY_LIMIT 0x02
/*!
 * \brief 7816-3 S-block chip reset mask
 */
#if defined(T1oI2C_UM11225)
#define PH_PROTO_7816_S_CHIP_RST      0x06
#elif defined(T1oI2C_GP1_0)
#define PH_PROTO_7816_S_COLD_RST      0x1E
#endif
/*!
 * \brief 7816-3 S-block get atr mask
 */
#define PH_PROTO_7816_S_GET_ATR      0x07
/*!
 * \brief 7816-3 S-block software reset mask
 */
#define PH_PROTO_7816_S_SWR      0x0F
/*!
 * \brief 7816-3 S-block release cmd mask
 */
#define PH_PROTO_7816_S_RELEASE      0x06
/*!
 * \brief 7816-3 S-block get CIP cmd mask
 */
#define PH_PROTO_7816_S_GET_CIP      0x04

/* T=1 protocol Block format for T1oI2C UM11225_SE050
 ___________________________________________________________________________________________________
|       Prologue Filed (Mandatory)       | Information Field (Optional)| Epilogue Filed (Mandatory) |
|________________________________________|_____________________________|____________________________|
|NAD(1 byte) | PCB(1 byte) | LEN(1 byte) |      INF(LEN bytes)         |        CRC(2 bytes)        |                                                                     |
|____________|_____________|_____________|_____________________________|____________________________|                                                                       |
*/

/* T=1 protocol Block format for T1oI2C GP
 ___________________________________________________________________________________________________
|       Prologue Filed (Mandatory)       | Information Field (Optional)| Epilogue Filed (Mandatory) |
|________________________________________|_____________________________|____________________________|
|NAD(1 byte) | PCB(1 byte) | LEN(2 byte) |      INF(LEN bytes)         |        CRC(2 bytes)        |                                                                     |
|____________|_____________|_____________|_____________________________|____________________________|                                                                       |
*/

#define PH_PROPTO_7816_NAD_OFFSET        0
#define PH_PROPTO_7816_PCB_OFFSET        1
#define PH_PROPTO_7816_LEN_UPPER_OFFSET  2
#define PH_PROPTO_7816_LEN_LOWER_OFFSET  3 /* for GP lower byte will be a part of T=1 protocol frame*/
#define PH_PROPTO_7816_INF_BYTE_OFFSET        (PH_PROTO_7816_HEADER_LEN)


/*!
 * \brief Start of frame marker
 * \ communication Direction      NAD value
 * \ SE host to SE                  0x5A
 * \ SE to SE host                  0xA5
 * \ eUICC host to Euicc            0x4B
 * \ eUICC to eUICC host            0xB4
 */
#define SEND_PACKET_SOF    0x5A
/*!
 * \Retrieve Information Filed from 7816-3 T=1 protocol frame
 * NAD   -1 byte
 * PCB   -1 byte
 * LEN   -(1 or 3 bytes for UM11225_SE050) & (2 bytes for GP)
 * CRC16 -2 bytes
 */
#define PH_PROTO_7816_INF_FILED (PH_PROTO_7816_HEADER_LEN + PH_PROTO_7816_CRC_LEN)
/*
 * APIs exposed from the 7816-3 protocol layer
 */

#if defined(T1oI2C_UM11225)
bool_t phNxpEseProto7816_IntfReset(void* conn_ctx, phNxpEse_data *AtrRsp);
bool_t phNxpEseProto7816_GetAtr(void* conn_ctx, phNxpEse_data *pRsp);
bool_t phNxpEseProto7816_ChipReset(void* conn_ctx);
#endif
bool_t phNxpEseProto7816_Close(void* conn_ctx);
bool_t phNxpEseProto7816_Open(void* conn_ctx, phNxpEseProto7816InitParam_t initParam , phNxpEse_data *AtrRsp);
bool_t phNxpEseProto7816_Transceive(void* conn_ctx, phNxpEse_data *pCmd, phNxpEse_data *pRsp);
bool_t phNxpEseProto7816_Reset(void);
bool_t phNxpEseProto7816_SetIfscSize(uint16_t IFSC_Size);
bool_t phNxpEseProto7816_ResetProtoParams(void);
#if defined(T1oI2C_GP1_0)
bool_t phNxpEseProto7816_SoftReset(void* conn_ctx);
bool_t phNxpEseProto7816_GetCip(void* conn_ctx, phNxpEse_data *pRsp);
bool_t phNxpEseProto7816_ColdReset(void* conn_ctx);
#endif
uint8_t getMaxSupportedSendIFrameSize(void);
/** @} */
#endif /* _PHNXPESEPROTO7816_3_H_ */