nfa_ce_main.c revision e09fd9c5ce2c1eaef0831d8699a01404bea14894 
1/******************************************************************************
2 *
3 *  Copyright (C) 2011-2014 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 *
22 *  This is the main implementation file for the NFA_CE
23 *
24 ******************************************************************************/
25#include <string.h>
26#include "nfa_ce_api.h"
27#include "nfa_sys.h"
28#include "nfa_ce_int.h"
29#include "nfa_dm_int.h"
30#include "nfa_sys_int.h"
31
32/* NFA_CE control block */
33tNFA_CE_CB nfa_ce_cb;
34
35/*****************************************************************************
36** Constants and types
37*****************************************************************************/
38#define NFA_CE_DEFAULT_ISODEP_DISC_MASK (NFA_DM_DISC_MASK_LA_ISO_DEP | NFA_DM_DISC_MASK_LB_ISO_DEP)
39static void nfa_ce_proc_nfcc_power_mode (UINT8 nfcc_power_mode);
40
41static const tNFA_SYS_REG nfa_ce_sys_reg =
42{
43    NULL,
44    nfa_ce_hdl_event,
45    nfa_ce_sys_disable,
46    nfa_ce_proc_nfcc_power_mode
47};
48
49/* NFA_CE actions */
50const tNFA_CE_ACTION nfa_ce_action_tbl[] =
51{
52    nfa_ce_api_cfg_local_tag,   /* NFA_CE_API_CFG_LOCAL_TAG_EVT */
53    nfa_ce_api_reg_listen,      /* NFA_CE_API_REG_LISTEN_EVT    */
54    nfa_ce_api_dereg_listen,    /* NFA_CE_API_DEREG_LISTEN_EVT  */
55    nfa_ce_api_cfg_isodep_tech, /* NFA_CE_API_CFG_ISODEP_TECH_EVT*/
56    nfa_ce_activate_ntf,        /* NFA_CE_ACTIVATE_NTF_EVT      */
57    nfa_ce_deactivate_ntf,      /* NFA_CE_DEACTIVATE_NTF_EVT    */
58};
59#define NFA_CE_ACTION_TBL_SIZE  (sizeof (nfa_ce_action_tbl) / sizeof (tNFA_CE_ACTION))
60
61/*****************************************************************************
62** Local function prototypes
63*****************************************************************************/
64#if (BT_TRACE_VERBOSE == TRUE)
65static char *nfa_ce_evt_2_str (UINT16 event);
66#endif
67
68
69/*******************************************************************************
70**
71** Function         nfa_ce_init
72**
73** Description      Initialize NFA CE
74**
75** Returns          None
76**
77*******************************************************************************/
78void nfa_ce_init (void)
79{
80    NFA_TRACE_DEBUG0 ("nfa_ce_init ()");
81
82    /* initialize control block */
83    memset (&nfa_ce_cb, 0, sizeof (tNFA_CE_CB));
84
85    /* Generate a random NFCID for Type-3 NDEF emulation (Type-3 tag NFCID2 must start with 02:FE) */
86    nfa_ce_t3t_generate_rand_nfcid (nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].t3t_nfcid2);
87    nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].rf_disc_handle = NFA_HANDLE_INVALID;
88    nfa_ce_cb.isodep_disc_mask  = NFA_CE_DEFAULT_ISODEP_DISC_MASK;
89
90    /* register message handler on NFA SYS */
91    nfa_sys_register ( NFA_ID_CE,  &nfa_ce_sys_reg);
92}
93
94/*******************************************************************************
95**
96** Function         nfa_ce_sys_disable
97**
98** Description      Clean up ce sub-system
99**
100**
101** Returns          void
102**
103*******************************************************************************/
104void nfa_ce_sys_disable (void)
105{
106    tNFA_CE_LISTEN_INFO *p_info;
107    UINT8 xx;
108
109    NFC_SetStaticRfCback (NULL);
110
111    /* Free scratch buf if any */
112    nfa_ce_free_scratch_buf ();
113
114    /* Delete discovery handles */
115    for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; xx++, p_info++)
116    {
117        if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && (p_info->rf_disc_handle != NFA_HANDLE_INVALID))
118        {
119            nfa_dm_delete_rf_discover (p_info->rf_disc_handle);
120            p_info->rf_disc_handle = NFA_HANDLE_INVALID;
121        }
122    }
123
124    nfa_sys_deregister (NFA_ID_CE);
125}
126
127/*******************************************************************************
128**
129** Function         nfa_ce_proc_nfcc_power_mode
130**
131** Description      Processing NFCC power mode changes
132**
133** Returns          None
134**
135*******************************************************************************/
136static void nfa_ce_proc_nfcc_power_mode (UINT8 nfcc_power_mode)
137{
138    tNFA_CE_CB *p_cb = &nfa_ce_cb;
139    UINT8 listen_info_idx;
140
141    NFA_TRACE_DEBUG1 ("nfa_ce_proc_nfcc_power_mode (): nfcc_power_mode=%d",
142                       nfcc_power_mode);
143
144    /* if NFCC power mode is change to full power */
145    if (nfcc_power_mode == NFA_DM_PWR_MODE_FULL)
146    {
147        nfa_ce_restart_listen_check ();
148    }
149    else
150    {
151        for (listen_info_idx=0; listen_info_idx<NFA_CE_LISTEN_INFO_IDX_INVALID; listen_info_idx++)
152        {
153            /* add RF discovery to DM only if it is not added yet */
154            if (  (p_cb->listen_info[listen_info_idx].flags & NFA_CE_LISTEN_INFO_IN_USE)
155                &&(p_cb->listen_info[listen_info_idx].rf_disc_handle != NFA_HANDLE_INVALID))
156            {
157                nfa_dm_delete_rf_discover (p_cb->listen_info[listen_info_idx].rf_disc_handle);
158                p_cb->listen_info[listen_info_idx].rf_disc_handle = NFA_HANDLE_INVALID;
159            }
160        }
161    }
162
163    nfa_sys_cback_notify_nfcc_power_mode_proc_complete (NFA_ID_CE);
164}
165
166/*******************************************************************************
167**
168** Function         nfa_ce_hdl_event
169**
170** Description      nfa rw main event handling function.
171**
172** Returns          BOOLEAN
173**
174*******************************************************************************/
175BOOLEAN nfa_ce_hdl_event (BT_HDR *p_msg)
176{
177    UINT16 act_idx;
178    BOOLEAN freebuf = TRUE;
179
180#if (BT_TRACE_VERBOSE == TRUE)
181    NFA_TRACE_EVENT3 ("nfa_ce_handle_event event: %s (0x%02x), flags: %08x", nfa_ce_evt_2_str (p_msg->event), p_msg->event, nfa_ce_cb.flags);
182#else
183    NFA_TRACE_EVENT2 ("nfa_ce_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_ce_cb.flags);
184#endif
185
186    /* Get NFA_RW sub-event */
187    if ((act_idx = (p_msg->event & 0x00FF)) < NFA_CE_ACTION_TBL_SIZE)
188    {
189        freebuf = (*nfa_ce_action_tbl[act_idx]) ((tNFA_CE_MSG*) p_msg);
190    }
191
192    /* if vendor specific event handler is registered */
193    if (nfa_ce_cb.p_vs_evt_hdlr)
194    {
195        (*nfa_ce_cb.p_vs_evt_hdlr) (p_msg);
196    }
197
198    return freebuf;
199}
200
201#if (BT_TRACE_VERBOSE == TRUE)
202/*******************************************************************************
203**
204** Function         nfa_ce_evt_2_str
205**
206** Description      convert nfc evt to string
207**
208*******************************************************************************/
209static char *nfa_ce_evt_2_str (UINT16 event)
210{
211    switch (event)
212    {
213    case NFA_CE_API_CFG_LOCAL_TAG_EVT:
214        return "NFA_CE_API_CFG_LOCAL_TAG_EVT";
215
216    case NFA_CE_API_REG_LISTEN_EVT:
217        return "NFA_CE_API_REG_LISTEN_EVT";
218
219    case NFA_CE_API_DEREG_LISTEN_EVT:
220        return "NFA_CE_API_DEREG_LISTEN_EVT";
221
222    case NFA_CE_API_CFG_ISODEP_TECH_EVT:
223        return "NFA_CE_API_CFG_ISODEP_TECH_EVT";
224
225    case NFA_CE_ACTIVATE_NTF_EVT:
226        return "NFA_CE_ACTIVATE_NTF_EVT";
227
228    case NFA_CE_DEACTIVATE_NTF_EVT:
229        return "NFA_CE_DEACTIVATE_NTF_EVT";
230
231    default:
232        return "Unknown";
233    }
234}
235#endif /* BT_TRACE_VERBOSE */
236