1 /******************************************************************************
2 *
3 * Copyright (C) 2011-2013 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 */
33 tNFA_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)
39
40 static const tNFA_SYS_REG nfa_ce_sys_reg =
41 {
42 NULL,
43 nfa_ce_hdl_event,
44 nfa_ce_sys_disable,
45 NULL
46 };
47
48 /* NFA_CE actions */
49 const tNFA_CE_ACTION nfa_ce_action_tbl[] =
50 {
51 nfa_ce_api_cfg_local_tag, /* NFA_CE_API_CFG_LOCAL_TAG_EVT */
52 nfa_ce_api_reg_listen, /* NFA_CE_API_REG_LISTEN_EVT */
53 nfa_ce_api_dereg_listen, /* NFA_CE_API_DEREG_LISTEN_EVT */
54 nfa_ce_api_cfg_isodep_tech, /* NFA_CE_API_CFG_ISODEP_TECH_EVT*/
55 nfa_ce_activate_ntf, /* NFA_CE_ACTIVATE_NTF_EVT */
56 nfa_ce_deactivate_ntf, /* NFA_CE_DEACTIVATE_NTF_EVT */
57 };
58 #define NFA_CE_ACTION_TBL_SIZE (sizeof (nfa_ce_action_tbl) / sizeof (tNFA_CE_ACTION))
59
60 /*****************************************************************************
61 ** Local function prototypes
62 *****************************************************************************/
63 #if (BT_TRACE_VERBOSE == TRUE)
64 static char *nfa_ce_evt_2_str (UINT16 event);
65 #endif
66
67
68 /*******************************************************************************
69 **
70 ** Function nfa_ce_init
71 **
72 ** Description Initialize NFA CE
73 **
74 ** Returns None
75 **
76 *******************************************************************************/
nfa_ce_init(void)77 void nfa_ce_init (void)
78 {
79 NFA_TRACE_DEBUG0 ("nfa_ce_init ()");
80
81 /* initialize control block */
82 memset (&nfa_ce_cb, 0, sizeof (tNFA_CE_CB));
83
84 /* Generate a random NFCID for Type-3 NDEF emulation (Type-3 tag NFCID2 must start with 02:FE) */
85 nfa_ce_t3t_generate_rand_nfcid (nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].t3t_nfcid2);
86 nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].rf_disc_handle = NFA_HANDLE_INVALID;
87 nfa_ce_cb.isodep_disc_mask = NFA_CE_DEFAULT_ISODEP_DISC_MASK;
88
89 /* register message handler on NFA SYS */
90 nfa_sys_register ( NFA_ID_CE, &nfa_ce_sys_reg);
91 }
92
93 /*******************************************************************************
94 **
95 ** Function nfa_ce_sys_disable
96 **
97 ** Description Clean up ce sub-system
98 **
99 **
100 ** Returns void
101 **
102 *******************************************************************************/
nfa_ce_sys_disable(void)103 void nfa_ce_sys_disable (void)
104 {
105 tNFA_CE_LISTEN_INFO *p_info;
106 UINT8 xx;
107
108 NFC_SetStaticRfCback (NULL);
109
110 /* Free scratch buf if any */
111 nfa_ce_free_scratch_buf ();
112
113 /* Delete discovery handles */
114 for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; xx++, p_info++)
115 {
116 if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && (p_info->rf_disc_handle != NFA_HANDLE_INVALID))
117 {
118 nfa_dm_delete_rf_discover (p_info->rf_disc_handle);
119 p_info->rf_disc_handle = NFA_HANDLE_INVALID;
120 }
121 }
122
123 nfa_sys_deregister (NFA_ID_CE);
124 }
125
126 /*******************************************************************************
127 **
128 ** Function nfa_ce_hdl_event
129 **
130 ** Description nfa rw main event handling function.
131 **
132 ** Returns BOOLEAN
133 **
134 *******************************************************************************/
nfa_ce_hdl_event(BT_HDR * p_msg)135 BOOLEAN nfa_ce_hdl_event (BT_HDR *p_msg)
136 {
137 UINT16 act_idx;
138 BOOLEAN freebuf = TRUE;
139
140 #if (BT_TRACE_VERBOSE == TRUE)
141 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);
142 #else
143 NFA_TRACE_EVENT2 ("nfa_ce_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_ce_cb.flags);
144 #endif
145
146 /* Get NFA_RW sub-event */
147 if ((act_idx = (p_msg->event & 0x00FF)) < NFA_CE_ACTION_TBL_SIZE)
148 {
149 freebuf = (*nfa_ce_action_tbl[act_idx]) ((tNFA_CE_MSG*) p_msg);
150 }
151
152 /* if vendor specific event handler is registered */
153 if (nfa_ce_cb.p_vs_evt_hdlr)
154 {
155 (*nfa_ce_cb.p_vs_evt_hdlr) (p_msg);
156 }
157
158 return freebuf;
159 }
160
161 #if (BT_TRACE_VERBOSE == TRUE)
162 /*******************************************************************************
163 **
164 ** Function nfa_ce_evt_2_str
165 **
166 ** Description convert nfc evt to string
167 **
168 *******************************************************************************/
nfa_ce_evt_2_str(UINT16 event)169 static char *nfa_ce_evt_2_str (UINT16 event)
170 {
171 switch (event)
172 {
173 case NFA_CE_API_CFG_LOCAL_TAG_EVT:
174 return "NFA_CE_API_CFG_LOCAL_TAG_EVT";
175
176 case NFA_CE_API_REG_LISTEN_EVT:
177 return "NFA_CE_API_REG_LISTEN_EVT";
178
179 case NFA_CE_API_DEREG_LISTEN_EVT:
180 return "NFA_CE_API_DEREG_LISTEN_EVT";
181
182 case NFA_CE_API_CFG_ISODEP_TECH_EVT:
183 return "NFA_CE_API_CFG_ISODEP_TECH_EVT";
184
185 case NFA_CE_ACTIVATE_NTF_EVT:
186 return "NFA_CE_ACTIVATE_NTF_EVT";
187
188 case NFA_CE_DEACTIVATE_NTF_EVT:
189 return "NFA_CE_DEACTIVATE_NTF_EVT";
190
191 default:
192 return "Unknown";
193 }
194 }
195 #endif /* BT_TRACE_VERBOSE */
196