/******************************************************************************
*
* Copyright (C) 2010-2014 Broadcom Corporation
*
* 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.
*
******************************************************************************/
/******************************************************************************
*
* This is the public interface file for NFA SNEP, Broadcom's NFC
* application layer for mobile phones.
*
******************************************************************************/
#ifndef NFA_SNEP_API_H
#define NFA_SNEP_API_H
#include "nfa_api.h"
/*****************************************************************************
** Constants and data types
*****************************************************************************/
#define NFA_SNEP_VERSION 0x10 /* SNEP Version 1.0 */
/* send remaining fragments */
#define NFA_SNEP_REQ_CODE_CONTINUE 0x00
/* return an NDEF message */
#define NFA_SNEP_REQ_CODE_GET 0x01
/* accept an NDEF message */
#define NFA_SNEP_REQ_CODE_PUT 0x02
/* do not send remaining fragments */
#define NFA_SNEP_REQ_CODE_REJECT 0x7F
#define tNFA_SNEP_REQ_CODE uint8_t
/* continue send remaining fragments */
#define NFA_SNEP_RESP_CODE_CONTINUE 0x80
/* the operation succeeded */
#define NFA_SNEP_RESP_CODE_SUCCESS 0x81
/* resource not found */
#define NFA_SNEP_RESP_CODE_NOT_FOUND 0xC0
/* resource exceeds data size limit */
#define NFA_SNEP_RESP_CODE_EXCESS_DATA 0xC1
/* malformed request not understood */
#define NFA_SNEP_RESP_CODE_BAD_REQ 0xC2
/* unsupported functionality requested */
#define NFA_SNEP_RESP_CODE_NOT_IMPLM 0xE0
/* unsupported protocol version */
#define NFA_SNEP_RESP_CODE_UNSUPP_VER 0xE1
/* do not send remaining fragments */
#define NFA_SNEP_RESP_CODE_REJECT 0xFF
#define tNFA_SNEP_RESP_CODE uint8_t
/* NFA SNEP callback events */
/* Server/client Registeration Status */
#define NFA_SNEP_REG_EVT 0x00
/* LLCP link has been activated, client only */
#define NFA_SNEP_ACTIVATED_EVT 0x01
/* LLCP link has been deactivated, client only */
#define NFA_SNEP_DEACTIVATED_EVT 0x02
/* Data link has been created */
#define NFA_SNEP_CONNECTED_EVT 0x03
/* GET request from client */
#define NFA_SNEP_GET_REQ_EVT 0x04
/* PUT request from client */
#define NFA_SNEP_PUT_REQ_EVT 0x05
/* GET response from server */
#define NFA_SNEP_GET_RESP_EVT 0x06
/* PUT response from server */
#define NFA_SNEP_PUT_RESP_EVT 0x07
/* Failed to connect or disconnected */
#define NFA_SNEP_DISC_EVT 0x08
#define NFA_SNEP_ALLOC_BUFF_EVT \
0x09 /* Request to allocate a buffer for \
NDEF*/
#define NFA_SNEP_FREE_BUFF_EVT 0x0A /* Request to deallocate buffer for NDEF*/
/* GET response sent to client */
#define NFA_SNEP_GET_RESP_CMPL_EVT 0x0B
/* SNEP default server is started */
#define NFA_SNEP_DEFAULT_SERVER_STARTED_EVT 0x0C
/* SNEP default server is stopped */
#define NFA_SNEP_DEFAULT_SERVER_STOPPED_EVT 0x0D
typedef uint8_t tNFA_SNEP_EVT;
#define NFA_SNEP_ANY_SAP LLCP_INVALID_SAP
/* Data for NFA_SNEP_REG_EVT */
typedef struct {
tNFA_STATUS status;
tNFA_HANDLE reg_handle; /* handle for registered server/client */
char service_name[LLCP_MAX_SN_LEN + 1]; /* only for server */
} tNFA_SNEP_REG;
/* Data for NFA_SNEP_ACTIVATED_EVT */
typedef struct {
tNFA_HANDLE client_handle; /* handle for registered client */
} tNFA_SNEP_ACTIVATED;
/* Data for NFA_SNEP_DEACTIVATED_EVT */
typedef tNFA_SNEP_ACTIVATED tNFA_SNEP_DEACTIVATED;
/* Data for NFA_SNEP_CONNECTED_EVT */
/*
** for server, new handle will be assigned for conn_handle
** for client, handle used in NFA_SnepConnect () is returned in conn_handle
*/
typedef struct {
tNFA_HANDLE reg_handle; /* server/client handle */
tNFA_HANDLE conn_handle; /* handle for data link connection */
} tNFA_SNEP_CONNECT;
/* Data for NFA_SNEP_GET_REQ_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
uint32_t acceptable_length; /* acceptable length from client */
uint32_t ndef_length; /* NDEF message length */
uint8_t* p_ndef; /* NDEF message */
} tNFA_SNEP_GET_REQ;
/* Data for NFA_SNEP_PUT_REQ_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
uint32_t ndef_length; /* NDEF message length */
uint8_t* p_ndef; /* NDEF message */
} tNFA_SNEP_PUT_REQ;
/* Data for NFA_SNEP_GET_RESP_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
tNFA_SNEP_RESP_CODE resp_code; /* response code from server */
uint32_t ndef_length; /* NDEF message length */
uint8_t* p_ndef; /* NDEF message */
} tNFA_SNEP_GET_RESP;
/* Data for NFA_SNEP_PUT_RESP_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
tNFA_SNEP_RESP_CODE resp_code; /* response code from server */
} tNFA_SNEP_PUT_RESP;
/* Data for NFA_SNEP_DISC_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
/* client_handle if connection failed */
} tNFA_SNEP_DISC;
/* Data for NFA_SNEP_ALLOC_BUFF_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
tNFA_SNEP_REQ_CODE
req_code; /* NFA_SNEP_REQ_CODE_GET or NFA_SNEP_REQ_CODE_PUT */
tNFA_SNEP_RESP_CODE resp_code; /* Response code if cannot allocate buffer */
uint32_t ndef_length; /* NDEF message length */
uint8_t* p_buff; /* buffer for NDEF message */
} tNFA_SNEP_ALLOC;
/* Data for NFA_SNEP_FREE_BUFF_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
uint8_t* p_buff; /* buffer to free */
} tNFA_SNEP_FREE;
/* Data for NFA_SNEP_GET_RESP_CMPL_EVT */
typedef struct {
tNFA_HANDLE conn_handle; /* handle for data link connection */
uint8_t* p_buff; /* buffer for NDEF message */
} tNFA_SNEP_GET_RESP_CMPL;
/* Union of all SNEP callback structures */
typedef union {
tNFA_SNEP_REG reg; /* NFA_SNEP_REG_EVT */
tNFA_SNEP_ACTIVATED activated; /* NFA_SNEP_ACTIVATED_EVT */
tNFA_SNEP_DEACTIVATED deactivated; /* NFA_SNEP_DEACTIVATED_EVT */
tNFA_SNEP_CONNECT connect; /* NFA_SNEP_CONNECTED_EVT */
tNFA_SNEP_GET_REQ get_req; /* NFA_SNEP_GET_REQ_EVT */
tNFA_SNEP_PUT_REQ put_req; /* NFA_SNEP_PUT_REQ_EVT */
tNFA_SNEP_GET_RESP get_resp; /* NFA_SNEP_GET_RESP_EVT */
tNFA_SNEP_PUT_RESP put_resp; /* NFA_SNEP_PUT_RESP_EVT */
tNFA_SNEP_DISC disc; /* NFA_SNEP_DISC_EVT */
tNFA_SNEP_ALLOC alloc; /* NFA_SNEP_ALLOC_BUFF_EVT */
tNFA_SNEP_FREE free; /* NFA_SNEP_FREE_BUFF_EVT */
tNFA_SNEP_GET_RESP_CMPL get_resp_cmpl; /* NFA_SNEP_GET_RESP_CMPL_EVT */
} tNFA_SNEP_EVT_DATA;
/* NFA SNEP callback */
typedef void(tNFA_SNEP_CBACK)(tNFA_SNEP_EVT event, tNFA_SNEP_EVT_DATA* p_data);
/*****************************************************************************
** External Function Declarations
*****************************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************************************
**
** Function NFA_SnepStartDefaultServer
**
** Description This function is called to listen to SAP, 0x04 as SNEP
** default server ("urn:nfc:sn:snep") on LLCP.
**
** NFA_SNEP_DEFAULT_SERVER_STARTED_EVT without data will be
** returned.
**
** Note: If RF discovery is started,
** NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT should
** happen before calling this function
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepStartDefaultServer(tNFA_SNEP_CBACK* p_cback);
/*******************************************************************************
**
** Function NFA_SnepStopDefaultServer
**
** Description This function is called to stop SNEP default server on LLCP.
**
** NFA_SNEP_DEFAULT_SERVER_STOPPED_EVT without data will be
** returned.
**
** Note: If RF discovery is started,
** NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT should
** happen before calling this function
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepStopDefaultServer(tNFA_SNEP_CBACK* p_cback);
/*******************************************************************************
**
** Function NFA_SnepRegisterServer
**
** Description This function is called to listen to a SAP as SNEP server.
**
** If server_sap is set to NFA_SNEP_ANY_SAP, then NFA will
** allocate a SAP between LLCP_LOWER_BOUND_SDP_SAP and
** LLCP_UPPER_BOUND_SDP_SAP
**
** NFC Forum default SNEP server ("urn:nfc:sn:snep") may be
** launched by NFA_SnepStartDefaultServer ().
**
** NFA_SNEP_REG_EVT will be returned with status, handle and
** service name.
**
** Note: If RF discovery is started,
** NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT should
** happen before calling this function
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_INVALID_PARAM if p_service_name or p_cback is
** NULL
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepRegisterServer(uint8_t server_sap,
char* p_service_name,
tNFA_SNEP_CBACK* p_cback);
/*******************************************************************************
**
** Function NFA_SnepRegisterClient
**
** Description This function is called to register SNEP client.
** NFA_SNEP_REG_EVT will be returned with status, handle
** and zero-length service name.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_INVALID_PARAM if p_cback is NULL
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepRegisterClient(tNFA_SNEP_CBACK* p_cback);
/*******************************************************************************
**
** Function NFA_SnepDeregister
**
** Description This function is called to stop listening as SNEP server
** or SNEP client. Application shall use reg_handle returned in
** NFA_SNEP_REG_EVT.
**
** Note: If this function is called to de-register a SNEP server and
** RF discovery is started,
** NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT should
** happen before calling this function
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepDeregister(tNFA_HANDLE reg_handle);
/*******************************************************************************
**
** Function NFA_SnepConnect
**
** Description This function is called by client to create data link
** connection to SNEP server on peer device.
**
** Client handle and service name of server to connect shall be
** provided. A conn_handle will be returned in
** NFA_SNEP_CONNECTED_EVT, if successfully connected. Otherwise
** NFA_SNEP_DISC_EVT will be returned.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_INVALID_PARAM if p_service_name or p_cback is
** NULL
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepConnect(tNFA_HANDLE client_handle,
char* p_service_name);
/*******************************************************************************
**
** Function NFA_SnepGet
**
** Description This function is called by client to send GET request.
**
** Application shall allocate a buffer and put NDEF message
** with desired record type to get from server. NDEF message
** from server will be returned in the same buffer with
** NFA_SNEP_GET_RESP_EVT. The size of buffer will be used as
** "Acceptable Length".
**
** NFA_SNEP_GET_RESP_EVT or NFA_SNEP_DISC_EVT will be returned
** through registered p_cback. Application may free the buffer
** after receiving these events.
**
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepGet(tNFA_HANDLE conn_handle, uint32_t buff_length,
uint32_t ndef_length, uint8_t* p_ndef_buff);
/*******************************************************************************
**
** Function NFA_SnepPut
**
** Description This function is called by client to send PUT request.
**
** Application shall allocate a buffer and put desired NDEF
** message to send to server.
**
** NFA_SNEP_PUT_RESP_EVT or NFA_SNEP_DISC_EVT will be returned
** through p_cback. Application may free the buffer after
** receiving these events.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_INVALID_PARAM if p_service_name or p_cback is
** NULL
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepPut(tNFA_HANDLE conn_handle, uint32_t ndef_length,
uint8_t* p_ndef_buff);
/*******************************************************************************
**
** Function NFA_SnepGetResponse
**
** Description This function is called by server to send response of GET
** request.
**
** When server application receives NFA_SNEP_ALLOC_BUFF_EVT,
** it shall allocate a buffer for incoming NDEF message and
** pass the pointer within callback context. This buffer will
** be returned with NFA_SNEP_GET_REQ_EVT after receiving
** complete NDEF message. If buffer is not allocated,
** NFA_SNEP_RESP_CODE_NOT_FOUND (Note:There is no proper
** response code for this case) or NFA_SNEP_RESP_CODE_REJECT
** will be sent to client.
**
** Server application shall provide conn_handle which is
** received in NFA_SNEP_GET_REQ_EVT.
**
** Server application shall allocate a buffer and put NDEF
** message if response code is NFA_SNEP_RESP_CODE_SUCCESS.
** Otherwise, ndef_length shall be set to zero.
**
** NFA_SNEP_GET_RESP_CMPL_EVT or NFA_SNEP_DISC_EVT will be
** returned through registered callback function. Application
** may free the buffer after receiving these events.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepGetResponse(tNFA_HANDLE conn_handle,
tNFA_SNEP_RESP_CODE resp_code,
uint32_t ndef_length,
uint8_t* p_ndef_buff);
/*******************************************************************************
**
** Function NFA_SnepPutResponse
**
** Description This function is called by server to send response of PUT
** request.
**
** When server application receives NFA_SNEP_ALLOC_BUFF_EVT,
** it shall allocate a buffer for incoming NDEF message and
** pass the pointer within callback context. This buffer will
** be returned with NFA_SNEP_PUT_REQ_EVT after receiving
** complete NDEF message. If buffer is not allocated,
** NFA_SNEP_RESP_CODE_REJECT will be sent to client or NFA will
** discard request and send NFA_SNEP_RESP_CODE_SUCCESS
** (Note:There is no proper response code for this case).
**
** Server application shall provide conn_handle which is
** received in NFA_SNEP_PUT_REQ_EVT.
**
** NFA_SNEP_DISC_EVT will be returned through registered
** callback function when client disconnects data link
** connection.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepPutResponse(tNFA_HANDLE conn_handle,
tNFA_SNEP_RESP_CODE resp_code);
/*******************************************************************************
**
** Function NFA_SnepDisconnect
**
** Description This function is called to disconnect data link connection.
** discard any pending data if flush is set to TRUE
**
** Client application shall provide conn_handle in
** NFA_SNEP_GET_RESP_EVT or NFA_SNEP_PUT_RESP_EVT.
**
** Server application shall provide conn_handle in
** NFA_SNEP_GET_REQ_EVT or NFA_SNEP_PUT_REQ_EVT.
**
** NFA_SNEP_DISC_EVT will be returned
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_BAD_HANDLE if handle is not valid
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
extern tNFA_STATUS NFA_SnepDisconnect(tNFA_HANDLE conn_handle, bool flush);
/*******************************************************************************
**
** Function NFA_SnepSetTraceLevel
**
** Description This function sets the trace level for SNEP. If called with
** a value of 0xFF, it simply returns the current trace level.
**
** Returns The new or current trace level
**
*******************************************************************************/
extern uint8_t NFA_SnepSetTraceLevel(uint8_t new_level);
#ifdef __cplusplus
}
#endif
#endif /* NFA_P2P_API_H */