nfa_dm_discover.c - Android社区 - https://www.androidos.net.cn/

/******************************************************************************
 *
 *  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 file contains the action functions for device manager discovery
 *  function.
 *
 ******************************************************************************/
#include <string.h>
#include "nfa_sys.h"
#include "nfa_api.h"
#include "nfa_dm_int.h"
#include "nfa_p2p_int.h"
#include "nfa_sys_int.h"
#include "nci_hmsgs.h"
#if (NFC_NFCEE_INCLUDED == TRUE)
#include "nfa_ee_api.h"
#include "nfa_ee_int.h"
#endif
#include "nfa_rw_int.h"

#include "nfc_int.h"
/*
**  static functions
*/

static UINT8 nfa_dm_get_rf_discover_config (tNFA_DM_DISC_TECH_PROTO_MASK dm_disc_mask,
                                            tNFC_DISCOVER_PARAMS disc_params[],
                                            UINT8 max_params);
static tNFA_STATUS nfa_dm_set_rf_listen_mode_config (tNFA_DM_DISC_TECH_PROTO_MASK tech_proto_mask);
static void nfa_dm_set_rf_listen_mode_raw_config (tNFA_DM_DISC_TECH_PROTO_MASK *p_disc_mask);
static tNFA_DM_DISC_TECH_PROTO_MASK nfa_dm_disc_get_disc_mask (tNFC_RF_TECH_N_MODE tech_n_mode,
                                                               tNFC_PROTOCOL       protocol);
static void nfa_dm_notify_discovery (tNFA_DM_RF_DISC_DATA *p_data);
static tNFA_STATUS nfa_dm_disc_notify_activation (tNFC_DISCOVER *p_data);
static void nfa_dm_disc_notify_deactivation (tNFA_DM_RF_DISC_SM_EVENT sm_event, tNFC_DISCOVER *p_data);
static void nfa_dm_disc_data_cback (UINT8 conn_id, tNFC_CONN_EVT event, tNFC_CONN *p_data);
static void nfa_dm_disc_kovio_timeout_cback (TIMER_LIST_ENT *p_tle);
static void nfa_dm_disc_report_kovio_presence_check (tNFC_STATUS status);

#if (BT_TRACE_VERBOSE == TRUE)
static char *nfa_dm_disc_state_2_str (UINT8 state);
static char *nfa_dm_disc_event_2_str (UINT8 event);
#endif

typedef struct nfa_dm_p2p_prio_logic
{
    BOOLEAN          isodep_detected; /* flag to check if ISO-DEP is detected */
    BOOLEAN          timer_expired;   /* flag to check whether timer is expired */
    TIMER_LIST_ENT   timer_list; /*timer structure pointer */
    UINT8            first_tech_mode;
}nfa_dm_p2p_prio_logic_t;

static nfa_dm_p2p_prio_logic_t p2p_prio_logic_data;

/*******************************************************************************
**
** Function         nfa_dm_get_rf_discover_config
**
** Description      Build RF discovery configurations from tNFA_DM_DISC_TECH_PROTO_MASK
**
** Returns          number of RF discovery configurations
**
*******************************************************************************/
static UINT8 nfa_dm_get_rf_discover_config (tNFA_DM_DISC_TECH_PROTO_MASK dm_disc_mask,
                                            tNFC_DISCOVER_PARAMS         disc_params[],
                                            UINT8 max_params)
{
    UINT8 num_params = 0;

if (nfa_dm_cb.flags & NFA_DM_FLAGS_LISTEN_DISABLED)
    {
        NFA_TRACE_DEBUG1 ("nfa_dm_get_rf_discover_config () listen disabled, rm listen from 0x%x", dm_disc_mask);
        dm_disc_mask &= NFA_DM_DISC_MASK_POLL;
    }
    if (nfa_dm_is_p2p_paused ())
    {
        dm_disc_mask &= ~NFA_DM_DISC_MASK_NFC_DEP;
    }

/* Check polling A */
    if (dm_disc_mask & ( NFA_DM_DISC_MASK_PA_T1T
                        |NFA_DM_DISC_MASK_PA_T2T
                        |NFA_DM_DISC_MASK_PA_ISO_DEP
                        |NFA_DM_DISC_MASK_PA_NFC_DEP
                        |NFA_DM_DISC_MASK_P_LEGACY) )
    {
        disc_params[num_params].type      = NFC_DISCOVERY_TYPE_POLL_A;
        disc_params[num_params].frequency = p_nfa_dm_rf_disc_freq_cfg->pa;
        num_params++;