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//*****************************************************************************
//
// llcp.h - Logic Link Control Protocol header file
//
// Copyright (c) 2014 Texas Instruments Incorporated. All rights reserved.
// Software License Agreement
//
// Texas Instruments (TI) is supplying this software for use solely and
// exclusively on TI's microcontroller products. The software is owned by
// TI and/or its suppliers, and is protected under applicable copyright
// laws. You may not combine this software with "viral" open-source
// software in order to form a larger program.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
// DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 2.1.0.12573 of the Tiva Firmware Development Package.
//
//*****************************************************************************
#ifndef __NFC_LLCP_H__
#define __NFC_LLCP_H__
#include "types.h"
//*****************************************************************************
//
//! \addtogroup nfc_llcp_api NFC LLCP API Functions
//! @{
//
//*****************************************************************************
//*****************************************************************************
//
// List of Commands
//
//*****************************************************************************
//
// ! LLCP Magic Number is constant 0x46666D
//
#define LLCP_MAGIC_NUMBER_HIGH 0x46
#define LLCP_MAGIC_NUMBER_MIDDLE 0x66
#define LLCP_MAGIC_NUMBER_LOW 0x6D
//*****************************************************************************
//
// Service in local service Environment and is NOT advertised by local SDP
//
//*****************************************************************************
//
//! Source Service Access Point when sending
//
#define LLCP_SSAP_CONNECT_SEND 0x20
//
//! Source Service Access Point when receiving
//
#define LLCP_SSAP_CONNECT_RECEIVED 0x04
//
//! Destination Service Access Point for discovery
//
#define DSAP_SERVICE_DISCOVERY_PROTOCOL 0x01
//
//! The LLCP_MIU is the maximum information unit supported by the LLCP layer.
//! This information unit may be included in each LLCP packet depending on the
//! PDU type. The minimum must be 128.
//
#define LLCP_MIU 248
//
//! The LLCP_MIUX_SIZE is the value for the LLCP_MIUX TLV used in LLCP_addTLV().
//
#define LLCP_MIUX_SIZE (LLCP_MIU - 128)
//*****************************************************************************
//
//! LLCP Parameter Enumerations.
//
//*****************************************************************************
typedef enum
{
//! See LLCP V1.1 Section 4.5.1
LLCP_VERSION = 0x01,
//! See LLCP V1.1 Section 4.5.2
LLCP_MIUX = 0x02,
//! See LLCP V1.1 Section 4.5.3
LLCP_WKS = 0x03,
//! See LLCP V1.1 Section 4.5.4
LLCP_LTO = 0x04,
//! See LLCP V1.1 Section 4.5.5
LLCP_RW = 0x05,
//! See LLCP V1.1 Section 4.5.6
LLCP_SN = 0x06,
//! See LLCP V1.1 Section 4.5.7
LLCP_OPT = 0x07,
//! See LLCP V1.1 Section 4.5.8
LLCP_SDREQ = 0x08,
//! See LLCP V1.1 Section 4.5.9
LLCP_SDRES = 0x09,
LLCP_ERROR
}tLLCPParamaeter;
//*****************************************************************************
//
//! PDU Type Enumerations.
//
//*****************************************************************************
typedef enum
{
//! See LLCP V1.1 Section 4.3.1
LLCP_SYMM_PDU = 0x00,
//! See LLCP V1.1 Section 4.3.2
LLCP_PAX_PDU= 0x01,
//! See LLCP V1.1 Section 4.3.3
LLCP_AGF_PDU= 0x02,
//! See LLCP V1.1 Section 4.3.4
LLCP_UI_PDU = 0x03,
//! See LLCP V1.1 Section 4.3.5
LLCP_CONNECT_PDU = 0x04,
//! See LLCP V1.1 Section 4.3.6
LLCP_DISC_PDU = 0x05,
//! See LLCP V1.1 Section 4.3.7
LLCP_CC_PDU = 0x06,
//! See LLCP V1.1 Section 4.3.8
LLCP_DM_PDU = 0x07,
//! See LLCP V1.1 Section 4.3.9
LLCP_FRMR_PDU = 0x08,
//! See LLCP V1.1 Section 4.3.10
LLCP_SNL_PDU = 0x09,
//! See LLCP V1.1 Section 4.3.11
LLCP_I_PDU = 0x0C,
//! See LLCP V1.1 Section 4.3.12
LLCP_RR_PDU = 0x0D,
//! See LLCP V1.1 Section 4.3.13
LLCP_RNR_PDU = 0x0E,
//! See LLCP V1.1 Section 4.3.14
LLCP_RESERVED_PDU = 0x0F
}tLLCPPduPtype;
//*****************************************************************************
//
//! LLCP Connection Status Enumeration.
//
//*****************************************************************************
typedef enum
{
//! No Tx/Rx ongoing.
LLCP_CONNECTION_IDLE = 0x00,
//! When a virtual link is created either when we send a CONNECT PDU and
//! receive a CC PDU, or when we receive a CONNECT PDU and respond a CC PDU.
LLCP_CONNECTION_ESTABLISHED,
//! When sending data via SNEP
LLCP_CONNECTION_SENDING,
//! When receiving data via SNEP
LLCP_CONNECTION_RECEIVING
}tLLCPConnectionStatus;
//*****************************************************************************
//
//! Service Name Enumerations - Only support SNEP_SERVICE
//
//*****************************************************************************
typedef enum
{
NPP_SERVICE = 0,
SNEP_SERVICE,
HANDOVER_SERVICE
}tServiceName;
//*****************************************************************************
//
//! Disconnected Mode Reasons Enumerations.
//
//*****************************************************************************
typedef enum
{
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_RECEIVED_DISC_PDU = 0x00,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_RECEIVED_CONNECTION_ORIENTED_PDU = 0x01,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_RECEIVED_CONNECT_PDU_NO_SERVICE = 0x02,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_PROCESSED_CONNECT_PDU_REQ_REJECTED = 0x03,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_PERMNANTLY_NOT_ACCEPT_CONNECT_WITH_SAME_SSAP = 0x10,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_PERMNANTLY_NOT_ACCEPT_CONNECT_WITH_ANY_SSAP = 0x11,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_TEMMPORARILY_NOT_ACCEPT_PDU_WITH_SAME_SSSAPT = 0x20,
//! See LLCP Section 4.3.8.
DM_REASON_LLCP_TEMMPORARILY_NOT_ACCEPT_PDU_WITH_ANY_SSSAPT = 0x21
}tDisconnectModeReason;
//*****************************************************************************
//
// Function Prototypes
//
//*****************************************************************************
void LLCP_init(void);
uint8_t LLCP_stateMachine(uint8_t * pui8PduBufferPtr);
tStatus LLCP_processReceivedData(uint8_t * pui8RxBuffer, uint8_t ui8PduLength);
uint16_t LLCP_getLinkTimeOut(void);
uint8_t LLCP_addTLV(tLLCPParamaeter eLLCPparam, uint8_t * pui8TLVBufferPtr);
void LLCP_processTLV(uint8_t * pui8TLVBufferPtr);
tStatus LLCP_setNextPDU(tLLCPPduPtype eNextPdu);
void LLCP_setConnectionStatus(tLLCPConnectionStatus eConnectionState);
uint8_t LLCP_sendSYMM(uint8_t * pui8PduBufferPtr);
uint8_t LLCP_sendCONNECT(uint8_t * pui8PduBufferPtr);
uint8_t LLCP_sendDISC(uint8_t * pui8PduBufferPtr);
uint8_t LLCP_sendCC(uint8_t * pui8PduBufferPtr);
uint8_t LLCP_sendDM(uint8_t * pui8PduBufferPtr,tDisconnectModeReason eDmReason);
uint8_t LLCP_sendI(uint8_t * pui8PduBufferPtr);
uint8_t LLCP_sendRR(uint8_t * pui8PduBufferPtr);
//*****************************************************************************
//
// Close the Doxygen group.
//! @}
//
//*****************************************************************************
#endif //__NFC_LLCP_H__
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