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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 2010-2012 Broadcom Corporation
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 /******************************************************************************
     20  *
     21  *  This is the main implementation file for the NFA Connection Handover.
     22  *
     23  ******************************************************************************/
     24 #include <string.h>
     25 #include "nfc_api.h"
     26 #include "nfa_sys.h"
     27 #include "nfa_cho_api.h"
     28 #include "nfa_cho_int.h"
     29 #include "trace_api.h"
     30 
     31 /*****************************************************************************
     32 **  Global Variables
     33 *****************************************************************************/
     34 
     35 /* system manager control block definition */
     36 #if NFA_DYNAMIC_MEMORY == FALSE
     37 tNFA_CHO_CB nfa_cho_cb;
     38 #endif
     39 
     40 /*****************************************************************************
     41 **  Static Functions
     42 *****************************************************************************/
     43 
     44 /* event handler function type */
     45 static BOOLEAN nfa_cho_evt_hdlr (BT_HDR *p_msg);
     46 
     47 /* disable function type */
     48 static void nfa_cho_sys_disable (void);
     49 
     50 /*****************************************************************************
     51 **  Constants
     52 *****************************************************************************/
     53 static const tNFA_SYS_REG nfa_cho_sys_reg =
     54 {
     55     NULL,
     56     nfa_cho_evt_hdlr,
     57     nfa_cho_sys_disable,
     58     NULL
     59 };
     60 
     61 /*******************************************************************************
     62 **
     63 ** Function         nfa_cho_timer_cback
     64 **
     65 ** Description      Process timeout event when timer expires
     66 **
     67 **
     68 ** Returns          None
     69 **
     70 *******************************************************************************/
     71 static void nfa_cho_timer_cback (void *p_tle)
     72 {
     73     nfa_cho_sm_execute (NFA_CHO_TIMEOUT_EVT, NULL);
     74 }
     75 
     76 /*******************************************************************************
     77 **
     78 ** Function         nfa_cho_init
     79 **
     80 ** Description      Initialize NFA Connection Handover
     81 **
     82 **
     83 ** Returns          None
     84 **
     85 *******************************************************************************/
     86 void nfa_cho_init (void)
     87 {
     88     CHO_TRACE_DEBUG0 ("nfa_cho_init ()");
     89 
     90     /* initialize control block */
     91     memset (&nfa_cho_cb, 0, sizeof (tNFA_CHO_CB));
     92 
     93     nfa_cho_cb.server_sap = LLCP_INVALID_SAP;
     94     nfa_cho_cb.client_sap = LLCP_INVALID_SAP;
     95     nfa_cho_cb.remote_sap = LLCP_INVALID_SAP;
     96 
     97     nfa_cho_cb.hs_ndef_type_handle   = NFA_HANDLE_INVALID;
     98     nfa_cho_cb.bt_ndef_type_handle   = NFA_HANDLE_INVALID;
     99     nfa_cho_cb.wifi_ndef_type_handle = NFA_HANDLE_INVALID;
    100 
    101     nfa_cho_cb.trace_level    = APPL_INITIAL_TRACE_LEVEL;
    102 
    103     /* register message handler on NFA SYS */
    104     nfa_sys_register ( NFA_ID_CHO,  &nfa_cho_sys_reg);
    105 
    106     /* initialize timer callback */
    107     nfa_cho_cb.timer.p_cback = nfa_cho_timer_cback;
    108 }
    109 
    110 /*******************************************************************************
    111 **
    112 ** Function         nfa_cho_sys_disable
    113 **
    114 ** Description      Deregister NFA Connection Handover from NFA SYS/DM
    115 **
    116 **
    117 ** Returns          None
    118 **
    119 *******************************************************************************/
    120 static void nfa_cho_sys_disable (void)
    121 {
    122     CHO_TRACE_DEBUG0 ("nfa_cho_sys_disable ()");
    123 
    124     /* clean up if application is still registered */
    125     if (nfa_cho_cb.p_cback)
    126     {
    127         nfa_cho_proc_api_dereg ();
    128     }
    129 
    130     /* deregister message handler on NFA SYS */
    131     nfa_sys_deregister (NFA_ID_CHO);
    132 }
    133 
    134 /*******************************************************************************
    135 **
    136 ** Function         nfa_cho_evt_hdlr
    137 **
    138 ** Description      Processing event for NFA Connection Handover
    139 **
    140 **
    141 ** Returns          TRUE if p_msg needs to be deallocated
    142 **
    143 *******************************************************************************/
    144 static BOOLEAN nfa_cho_evt_hdlr (BT_HDR *p_msg)
    145 {
    146     tNFA_CHO_INT_EVENT_DATA *p_data = (tNFA_CHO_INT_EVENT_DATA *) p_msg;
    147 
    148     nfa_cho_sm_execute (p_data->hdr.event, p_data);
    149 
    150     return TRUE;
    151 }
    152 
    153 
    154