1 /******************************************************************************
2 *
3 * Copyright (C) 2011-2012 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_CE
22 *
23 ******************************************************************************/
24 #include <string.h>
25 #include "nfa_ce_api.h"
26 #include "nfa_sys.h"
27 #include "nfa_ce_int.h"
28 #include "nfa_dm_int.h"
29 #include "nfa_sys_int.h"
30
31 /* NFA_CE control block */
32 tNFA_CE_CB nfa_ce_cb;
33
34 /*****************************************************************************
35 ** Constants and types
36 *****************************************************************************/
37 #define NFA_CE_DEFAULT_ISODEP_DISC_MASK (NFA_DM_DISC_MASK_LA_ISO_DEP | NFA_DM_DISC_MASK_LB_ISO_DEP)
38
39 static const tNFA_SYS_REG nfa_ce_sys_reg =
40 {
41 NULL,
42 nfa_ce_hdl_event,
43 nfa_ce_sys_disable,
44 NULL
45 };
46
47 /* NFA_CE actions */
48 const tNFA_CE_ACTION nfa_ce_action_tbl[] =
49 {
50 nfa_ce_api_cfg_local_tag, /* NFA_CE_API_CFG_LOCAL_TAG_EVT */
51 nfa_ce_api_reg_listen, /* NFA_CE_API_REG_LISTEN_EVT */
52 nfa_ce_api_dereg_listen, /* NFA_CE_API_DEREG_LISTEN_EVT */
53 nfa_ce_api_cfg_isodep_tech, /* NFA_CE_API_CFG_ISODEP_TECH_EVT*/
54 nfa_ce_activate_ntf, /* NFA_CE_ACTIVATE_NTF_EVT */
55 nfa_ce_deactivate_ntf, /* NFA_CE_DEACTIVATE_NTF_EVT */
56 };
57 #define NFA_CE_ACTION_TBL_SIZE (sizeof (nfa_ce_action_tbl) / sizeof (tNFA_CE_ACTION))
58
59 /*****************************************************************************
60 ** Local function prototypes
61 *****************************************************************************/
62 #if (BT_TRACE_VERBOSE == TRUE)
63 static char *nfa_ce_evt_2_str (UINT16 event);
64 #endif
65
66
67 /*******************************************************************************
68 **
69 ** Function nfa_ce_init
70 **
71 ** Description Initialize NFA CE
72 **
73 ** Returns None
74 **
75 *******************************************************************************/
nfa_ce_init(void)76 void nfa_ce_init (void)
77 {
78 NFA_TRACE_DEBUG0 ("nfa_ce_init ()");
79
80 /* initialize control block */
81 memset (&nfa_ce_cb, 0, sizeof (tNFA_CE_CB));
82
83 /* Generate a random NFCID for Type-3 NDEF emulation (Type-3 tag NFCID2 must start with 02:FE) */
84 nfa_ce_t3t_generate_rand_nfcid (nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].t3t_nfcid2);
85 nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].rf_disc_handle = NFA_HANDLE_INVALID;
86 nfa_ce_cb.isodep_disc_mask = NFA_CE_DEFAULT_ISODEP_DISC_MASK;
87
88 /* register message handler on NFA SYS */
89 nfa_sys_register ( NFA_ID_CE, &nfa_ce_sys_reg);
90 }
91
92 /*******************************************************************************
93 **
94 ** Function nfa_ce_sys_disable
95 **
96 ** Description Clean up ce sub-system
97 **
98 **
99 ** Returns void
100 **
101 *******************************************************************************/
nfa_ce_sys_disable(void)102 void nfa_ce_sys_disable (void)
103 {
104 tNFA_CE_LISTEN_INFO *p_info;
105 UINT8 xx;
106
107 NFC_SetStaticRfCback (NULL);
108
109 /* Free scratch buf if any */
110 nfa_ce_free_scratch_buf ();
111
112 /* Delete discovery handles */
113 for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; xx++, p_info++)
114 {
115 if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && (p_info->rf_disc_handle != NFA_HANDLE_INVALID))
116 {
117 nfa_dm_delete_rf_discover (p_info->rf_disc_handle);
118 p_info->rf_disc_handle = NFA_HANDLE_INVALID;
119 }
120 }
121
122 nfa_sys_deregister (NFA_ID_CE);
123 }
124
125 /*******************************************************************************
126 **
127 ** Function nfa_ce_hdl_event
128 **
129 ** Description nfa rw main event handling function.
130 **
131 ** Returns BOOLEAN
132 **
133 *******************************************************************************/
nfa_ce_hdl_event(BT_HDR * p_msg)134 BOOLEAN nfa_ce_hdl_event (BT_HDR *p_msg)
135 {
136 UINT16 act_idx;
137 BOOLEAN freebuf = TRUE;
138
139 #if (BT_TRACE_VERBOSE == TRUE)
140 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);
141 #else
142 NFA_TRACE_EVENT2 ("nfa_ce_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_ce_cb.flags);
143 #endif
144
145 /* Get NFA_RW sub-event */
146 if ((act_idx = (p_msg->event & 0x00FF)) < NFA_CE_ACTION_TBL_SIZE)
147 {
148 freebuf = (*nfa_ce_action_tbl[act_idx]) ((tNFA_CE_MSG*) p_msg);
149 }
150
151 /* if vendor specific event handler is registered */
152 if (nfa_ce_cb.p_vs_evt_hdlr)
153 {
154 (*nfa_ce_cb.p_vs_evt_hdlr) (p_msg);
155 }
156
157 return freebuf;
158 }
159
160 #if (BT_TRACE_VERBOSE == TRUE)
161 /*******************************************************************************
162 **
163 ** Function nfa_ce_evt_2_str
164 **
165 ** Description convert nfc evt to string
166 **
167 *******************************************************************************/
nfa_ce_evt_2_str(UINT16 event)168 static char *nfa_ce_evt_2_str (UINT16 event)
169 {
170 switch (event)
171 {
172 case NFA_CE_API_CFG_LOCAL_TAG_EVT:
173 return "NFA_CE_API_CFG_LOCAL_TAG_EVT";
174
175 case NFA_CE_API_REG_LISTEN_EVT:
176 return "NFA_CE_API_REG_LISTEN_EVT";
177
178 case NFA_CE_API_DEREG_LISTEN_EVT:
179 return "NFA_CE_API_DEREG_LISTEN_EVT";
180
181 case NFA_CE_API_CFG_ISODEP_TECH_EVT:
182 return "NFA_CE_API_CFG_ISODEP_TECH_EVT";
183
184 case NFA_CE_ACTIVATE_NTF_EVT:
185 return "NFA_CE_ACTIVATE_NTF_EVT";
186
187 case NFA_CE_DEACTIVATE_NTF_EVT:
188 return "NFA_CE_DEACTIVATE_NTF_EVT";
189
190 default:
191 return "Unknown";
192 }
193 }
194 #endif /* BT_TRACE_VERBOSE */
195