/******************************************************************************
*
* Copyright (C) 2010-2013 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.
*
******************************************************************************/
/******************************************************************************
*
* NFA interface to NFCEE - API functions
*
******************************************************************************/
#include <string.h>
#include "nfa_ee_api.h"
#include "nfa_ee_int.h"
#include "nfa_sys_int.h"
#include "nfa_dm_int.h"
/*****************************************************************************
** APIs
*****************************************************************************/
/*******************************************************************************
**
** Function NFA_EeDiscover
**
** Description This function retrieves the NFCEE information from NFCC.
** The NFCEE information is reported in NFA_EE_DISCOVER_EVT.
**
** This function may be called when a system supports removable
** NFCEEs,
**
** Returns NFA_STATUS_OK if information is retrieved successfully
** NFA_STATUS_FAILED If wrong state (retry later)
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeDiscover(tNFA_EE_CBACK *p_cback)
{
tNFA_EE_API_DISCOVER *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
NFA_TRACE_API0 ("NFA_EeDiscover()");
if (nfa_ee_cb.em_state != NFA_EE_EM_STATE_INIT_DONE)
{
NFA_TRACE_ERROR1 ("NFA_EeDiscover bad em state: %d", nfa_ee_cb.em_state);
status = NFA_STATUS_FAILED;
}
else if ((nfa_ee_cb.p_ee_disc_cback != NULL) || (p_cback == NULL))
{
NFA_TRACE_ERROR0 ("NFA_EeDiscover() in progress or NULL callback function");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_DISCOVER *) GKI_getbuf (sizeof(tNFA_EE_API_DISCOVER))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_DISCOVER_EVT;
p_msg->p_cback = p_cback;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeGetInfo
**
** Description This function retrieves the NFCEE information from NFA.
** The actual number of NFCEE is returned in p_num_nfcee
** and NFCEE information is returned in p_info
**
** Returns NFA_STATUS_OK if information is retrieved successfully
** NFA_STATUS_FAILED If wrong state (retry later)
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeGetInfo(UINT8 *p_num_nfcee,
tNFA_EE_INFO *p_info)
{
int xx, ret = nfa_ee_cb.cur_ee;
tNFA_EE_ECB *p_cb = nfa_ee_cb.ecb;
UINT8 max_ret;
UINT8 num_ret = 0;
NFA_TRACE_DEBUG2 ("NFA_EeGetInfo em_state:%d cur_ee:%d", nfa_ee_cb.em_state, nfa_ee_cb.cur_ee);
/* validate parameters */
if (p_info == NULL || p_num_nfcee == NULL)
{
NFA_TRACE_ERROR0 ("NFA_EeGetInfo bad parameter");
return (NFA_STATUS_INVALID_PARAM);
}
max_ret = *p_num_nfcee;
*p_num_nfcee = 0;
if (nfa_ee_cb.em_state == NFA_EE_EM_STATE_INIT)
{
NFA_TRACE_ERROR1 ("NFA_EeGetInfo bad em state: %d", nfa_ee_cb.em_state);
return (NFA_STATUS_FAILED);
}
/* compose output */
for (xx = 0; (xx < ret) && (num_ret < max_ret); xx++, p_cb++)
{
NFA_TRACE_DEBUG4 ("xx:%d max_ret:%d, num_ret:%d ee_status:0x%x", xx, max_ret, num_ret, p_cb->ee_status);
if ((p_cb->ee_status & NFA_EE_STATUS_INT_MASK) || (p_cb->ee_status == NFA_EE_STATUS_REMOVED))
{
continue;
}
p_info->ee_handle = NFA_HANDLE_GROUP_EE | (tNFA_HANDLE)p_cb->nfcee_id;
p_info->ee_status = p_cb->ee_status;
p_info->num_interface = p_cb->num_interface;
p_info->num_tlvs = p_cb->num_tlvs;
memcpy(p_info->ee_interface, p_cb->ee_interface, p_cb->num_interface);
memcpy(p_info->ee_tlv, p_cb->ee_tlv, p_cb->num_tlvs * sizeof(tNFA_EE_TLV));
p_info++;
num_ret++;
}
NFA_TRACE_DEBUG1 ("num_ret:%d", num_ret);
*p_num_nfcee = num_ret;
return (NFA_STATUS_OK);
}
/*******************************************************************************
**
** Function NFA_EeRegister
**
** Description This function registers a callback function to receive the
** events from NFA-EE module.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeRegister(tNFA_EE_CBACK *p_cback)
{
tNFA_EE_API_REGISTER *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
NFA_TRACE_API0 ("NFA_EeRegister()");
if (p_cback == NULL)
{
NFA_TRACE_ERROR0 ("NFA_EeRegister(): with NULL callback function");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_REGISTER *) GKI_getbuf (sizeof(tNFA_EE_API_REGISTER))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_REGISTER_EVT;
p_msg->p_cback = p_cback;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeDeregister
**
** Description This function de-registers the callback function
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeDeregister(tNFA_EE_CBACK *p_cback)
{
tNFA_EE_API_DEREGISTER *p_msg;
tNFA_STATUS status = NFA_STATUS_INVALID_PARAM;
int index = NFA_EE_MAX_CBACKS;
int xx;
for (xx = 0; xx < NFA_EE_MAX_CBACKS; xx++)
{
if (nfa_ee_cb.p_ee_cback[xx] == p_cback)
{
index = xx;
status = NFA_STATUS_FAILED;
break;
}
}
NFA_TRACE_API2 ("NFA_EeDeregister() %d, status:%d", index, status);
if ((status != NFA_STATUS_INVALID_PARAM) &&
(p_msg = (tNFA_EE_API_DEREGISTER *) GKI_getbuf (sizeof(tNFA_EE_API_DEREGISTER))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_DEREGISTER_EVT;
p_msg->index = index;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeModeSet
**
** Description This function is called to activate (mode = NFA_EE_MD_ACTIVATE)
** or deactivate (mode = NFA_EE_MD_DEACTIVATE) the NFCEE
** identified by the given ee_handle. The result of this
** operation is reported with the NFA_EE_MODE_SET_EVT.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeModeSet(tNFA_HANDLE ee_handle,
tNFA_EE_MD mode)
{
tNFA_EE_API_MODE_SET *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
tNFA_EE_ECB *p_cb, *p_found = NULL;
UINT32 xx;
UINT8 nfcee_id = (ee_handle & 0xFF);
p_cb = nfa_ee_cb.ecb;
for (xx = 0; xx < nfa_ee_cb.cur_ee; xx++, p_cb++)
{
if (nfcee_id == p_cb->nfcee_id)
{
p_found = p_cb;
break;
}
}
NFA_TRACE_API2 ("NFA_EeModeSet(): handle:<0x%x>, mode:0x%02X", ee_handle, mode);
if (p_found == NULL)
{
NFA_TRACE_ERROR1 ("NFA_EeModeSet() invalid NFCEE:0x%04x", ee_handle);
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_MODE_SET *) GKI_getbuf (sizeof(tNFA_EE_API_MODE_SET))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_MODE_SET_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->mode = mode;
p_msg->p_cb = p_found;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeSetDefaultTechRouting
**
** Description This function is called to add, change or remove the
** default routing based on RF technology in the listen mode
** routing table for the given ee_handle. The status of this
** operation is reported as the NFA_EE_SET_TECH_CFG_EVT.
**
** Note: If RF discovery is started, NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT
** should happen before calling this function
**
** Note: NFA_EeUpdateNow() should be called after last NFA-EE function
** to change the listen mode routing is called.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeSetDefaultTechRouting(tNFA_HANDLE ee_handle,
tNFA_TECHNOLOGY_MASK technologies_switch_on,
tNFA_TECHNOLOGY_MASK technologies_switch_off,
tNFA_TECHNOLOGY_MASK technologies_battery_off)
{
tNFA_EE_API_SET_TECH_CFG *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API4 ("NFA_EeSetDefaultTechRouting(): handle:<0x%x>technology_mask:<0x%x>/<0x%x>/<0x%x>",
ee_handle, technologies_switch_on, technologies_switch_off, technologies_battery_off);
p_cb = nfa_ee_find_ecb (nfcee_id);
if (p_cb == NULL)
{
NFA_TRACE_ERROR0 ("Bad ee_handle");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_SET_TECH_CFG *) GKI_getbuf (sizeof(tNFA_EE_API_SET_TECH_CFG))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_SET_TECH_CFG_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
p_msg->technologies_switch_on = technologies_switch_on;
p_msg->technologies_switch_off = technologies_switch_off;
p_msg->technologies_battery_off = technologies_battery_off;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeSetDefaultProtoRouting
**
** Description This function is called to add, change or remove the
** default routing based on Protocol in the listen mode routing
** table for the given ee_handle. The status of this
** operation is reported as the NFA_EE_SET_PROTO_CFG_EVT.
**
** Note: If RF discovery is started, NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT
** should happen before calling this function
**
** Note: NFA_EeUpdateNow() should be called after last NFA-EE function
** to change the listen mode routing is called.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeSetDefaultProtoRouting(tNFA_HANDLE ee_handle,
tNFA_PROTOCOL_MASK protocols_switch_on,
tNFA_PROTOCOL_MASK protocols_switch_off,
tNFA_PROTOCOL_MASK protocols_battery_off)
{
tNFA_EE_API_SET_PROTO_CFG *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API4 ("NFA_EeSetDefaultProtoRouting(): handle:<0x%x>protocol_mask:<0x%x>/<0x%x>/<0x%x>",
ee_handle, protocols_switch_on, protocols_switch_off, protocols_battery_off);
p_cb = nfa_ee_find_ecb (nfcee_id);
if (p_cb == NULL)
{
NFA_TRACE_ERROR0 ("Bad ee_handle");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_SET_PROTO_CFG *) GKI_getbuf (sizeof(tNFA_EE_API_SET_PROTO_CFG))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_SET_PROTO_CFG_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
p_msg->protocols_switch_on = protocols_switch_on;
p_msg->protocols_switch_off = protocols_switch_off;
p_msg->protocols_battery_off = protocols_battery_off;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeAddAidRouting
**
** Description This function is called to add an AID entry in the
** listen mode routing table in NFCC. The status of this
** operation is reported as the NFA_EE_ADD_AID_EVT.
**
** Note: If RF discovery is started, NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT
** should happen before calling this function
**
** Note: NFA_EeUpdateNow() should be called after last NFA-EE function
** to change the listen mode routing is called.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeAddAidRouting(tNFA_HANDLE ee_handle,
UINT8 aid_len,
UINT8 *p_aid,
tNFA_EE_PWR_STATE power_state)
{
tNFA_EE_API_ADD_AID *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT16 size = sizeof(tNFA_EE_API_ADD_AID) + aid_len;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API1 ("NFA_EeAddAidRouting(): handle:<0x%x>", ee_handle);
p_cb = nfa_ee_find_ecb (nfcee_id);
/* validate parameters - make sure the AID is in valid length range */
if ((p_cb == NULL) || (aid_len == 0) || (p_aid == NULL) || (aid_len < NFA_MIN_AID_LEN) || (aid_len > NFA_MAX_AID_LEN))
{
NFA_TRACE_ERROR1 ("Bad ee_handle or AID (len=%d)", aid_len);
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_ADD_AID *) GKI_getbuf (size)) != NULL)
{
NFA_TRACE_DEBUG2 ("aid:<%02x%02x>", p_aid[0], p_aid[1]);
p_msg->hdr.event = NFA_EE_API_ADD_AID_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
p_msg->aid_len = aid_len;
p_msg->power_state = power_state;
p_msg->p_aid = (UINT8 *)(p_msg + 1);
memcpy(p_msg->p_aid, p_aid, aid_len);
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeRemoveAidRouting
**
** Description This function is called to remove the given AID entry from the
** listen mode routing table. If the entry configures VS,
** it is also removed. The status of this operation is reported
** as the NFA_EE_REMOVE_AID_EVT.
**
** Note: If RF discovery is started, NFA_StopRfDiscovery()/NFA_RF_DISCOVERY_STOPPED_EVT
** should happen before calling this function
**
** Note: NFA_EeUpdateNow() should be called after last NFA-EE function
** to change the listen mode routing is called.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeRemoveAidRouting(UINT8 aid_len,
UINT8 *p_aid)
{
tNFA_EE_API_REMOVE_AID *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT16 size = sizeof(tNFA_EE_API_REMOVE_AID) + aid_len;
NFA_TRACE_API0 ("NFA_EeRemoveAidRouting()");
if ((aid_len == 0) || (p_aid == NULL) || (aid_len > NFA_MAX_AID_LEN))
{
NFA_TRACE_ERROR0 ("Bad AID");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_REMOVE_AID *) GKI_getbuf (size)) != NULL)
{
p_msg->hdr.event = NFA_EE_API_REMOVE_AID_EVT;
p_msg->aid_len = aid_len;
p_msg->p_aid = (UINT8 *)(p_msg + 1);
memcpy(p_msg->p_aid, p_aid, aid_len);
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeUpdateNow
**
** Description This function is called to send the current listen mode
** routing table and VS configuration to the NFCC (without waiting
** for NFA_EE_ROUT_TIMEOUT_VAL).
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
**
*******************************************************************************/
tNFA_STATUS NFA_EeUpdateNow(void)
{
BT_HDR *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
NFA_TRACE_API0 ("NFA_EeUpdateNow()");
if ((p_msg = (BT_HDR *) GKI_getbuf (BT_HDR_SIZE)) != NULL)
{
p_msg->event = NFA_EE_API_UPDATE_NOW_EVT;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeConnect
**
** Description Open connection to an NFCEE attached to the NFCC
**
** The status of this operation is
** reported with the NFA_EE_CONNECT_EVT.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeConnect(tNFA_HANDLE ee_handle,
UINT8 ee_interface,
tNFA_EE_CBACK *p_cback)
{
tNFA_EE_API_CONNECT *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API2 ("NFA_EeConnect(): handle:<0x%x> ee_interface:0x%x", ee_handle, ee_interface);
p_cb = nfa_ee_find_ecb (nfcee_id);
if ((p_cb == NULL) || (p_cback == NULL))
{
NFA_TRACE_ERROR0 ("Bad ee_handle or NULL callback function");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_CONNECT *) GKI_getbuf (sizeof(tNFA_EE_API_CONNECT))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_CONNECT_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
p_msg->ee_interface = ee_interface;
p_msg->p_cback = p_cback;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeSendData
**
** Description Send data to the given NFCEE.
** This function shall be called after NFA_EE_CONNECT_EVT is reported
** and before NFA_EeDisconnect is called on the given ee_handle.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeSendData (tNFA_HANDLE ee_handle,
UINT16 data_len,
UINT8 *p_data)
{
tNFA_EE_API_SEND_DATA *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API1 ("NFA_EeSendData(): handle:<0x%x>", ee_handle);
p_cb = nfa_ee_find_ecb (nfcee_id);
if ((p_cb == NULL) || (p_cb->conn_st != NFA_EE_CONN_ST_CONN) || (p_data == NULL))
{
NFA_TRACE_ERROR0 ("Bad ee_handle or NULL data");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_SEND_DATA *) GKI_getbuf ((UINT16)(sizeof(tNFA_EE_API_SEND_DATA) + data_len))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_SEND_DATA_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
p_msg->data_len = data_len;
p_msg->p_data = (UINT8 *)(p_msg + 1);
memcpy(p_msg->p_data, p_data, data_len);
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}
/*******************************************************************************
**
** Function NFA_EeDisconnect
**
** Description Disconnect (if a connection is currently open) from an
** NFCEE interface. The result of this operation is reported
** with the NFA_EE_DISCONNECT_EVT.
**
** Returns NFA_STATUS_OK if successfully initiated
** NFA_STATUS_FAILED otherwise
** NFA_STATUS_INVALID_PARAM If bad parameter
**
*******************************************************************************/
tNFA_STATUS NFA_EeDisconnect(tNFA_HANDLE ee_handle)
{
tNFA_EE_API_DISCONNECT *p_msg;
tNFA_STATUS status = NFA_STATUS_FAILED;
UINT8 nfcee_id = (UINT8)(ee_handle & 0xFF);
tNFA_EE_ECB *p_cb;
NFA_TRACE_API1 ("NFA_EeDisconnect(): handle:<0x%x>", ee_handle);
p_cb = nfa_ee_find_ecb (nfcee_id);
if ((p_cb == NULL) || (p_cb->conn_st != NFA_EE_CONN_ST_CONN))
{
NFA_TRACE_ERROR0 ("NFA_EeDisconnect() Bad ee_handle");
status = NFA_STATUS_INVALID_PARAM;
}
else if ((p_msg = (tNFA_EE_API_DISCONNECT *) GKI_getbuf (sizeof(tNFA_EE_API_DISCONNECT))) != NULL)
{
p_msg->hdr.event = NFA_EE_API_DISCONNECT_EVT;
p_msg->nfcee_id = nfcee_id;
p_msg->p_cb = p_cb;
nfa_sys_sendmsg (p_msg);
status = NFA_STATUS_OK;
}
return status;
}