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 */
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 static void nfa_ce_proc_nfcc_power_mode (UINT8 nfcc_power_mode);
40
41 static 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 */
50 const 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)
65 static 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 *******************************************************************************/
nfa_ce_init(void)78 void 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 nfa_ce_cb.idx_wild_card = NFA_CE_LISTEN_INFO_IDX_INVALID;
90
91 /* register message handler on NFA SYS */
92 nfa_sys_register ( NFA_ID_CE, &nfa_ce_sys_reg);
93 }
94
95 /*******************************************************************************
96 **
97 ** Function nfa_ce_sys_disable
98 **
99 ** Description Clean up ce sub-system
100 **
101 **
102 ** Returns void
103 **
104 *******************************************************************************/
nfa_ce_sys_disable(void)105 void nfa_ce_sys_disable (void)
106 {
107 tNFA_CE_LISTEN_INFO *p_info;
108 UINT8 xx;
109
110 NFC_SetStaticRfCback (NULL);
111
112 /* Free scratch buf if any */
113 nfa_ce_free_scratch_buf ();
114
115 /* Delete discovery handles */
116 for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; xx++, p_info++)
117 {
118 if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && (p_info->rf_disc_handle != NFA_HANDLE_INVALID))
119 {
120 nfa_dm_delete_rf_discover (p_info->rf_disc_handle);
121 p_info->rf_disc_handle = NFA_HANDLE_INVALID;
122 }
123 }
124
125 nfa_sys_deregister (NFA_ID_CE);
126 }
127
128 /*******************************************************************************
129 **
130 ** Function nfa_ce_proc_nfcc_power_mode
131 **
132 ** Description Processing NFCC power mode changes
133 **
134 ** Returns None
135 **
136 *******************************************************************************/
nfa_ce_proc_nfcc_power_mode(UINT8 nfcc_power_mode)137 static void nfa_ce_proc_nfcc_power_mode (UINT8 nfcc_power_mode)
138 {
139 tNFA_CE_CB *p_cb = &nfa_ce_cb;
140 UINT8 listen_info_idx;
141
142 NFA_TRACE_DEBUG1 ("nfa_ce_proc_nfcc_power_mode (): nfcc_power_mode=%d",
143 nfcc_power_mode);
144
145 /* if NFCC power mode is change to full power */
146 if (nfcc_power_mode == NFA_DM_PWR_MODE_FULL)
147 {
148 nfa_ce_restart_listen_check ();
149 }
150 else
151 {
152 for (listen_info_idx=0; listen_info_idx<NFA_CE_LISTEN_INFO_IDX_INVALID; listen_info_idx++)
153 {
154 /* add RF discovery to DM only if it is not added yet */
155 if ( (p_cb->listen_info[listen_info_idx].flags & NFA_CE_LISTEN_INFO_IN_USE)
156 &&(p_cb->listen_info[listen_info_idx].rf_disc_handle != NFA_HANDLE_INVALID))
157 {
158 nfa_dm_delete_rf_discover (p_cb->listen_info[listen_info_idx].rf_disc_handle);
159 p_cb->listen_info[listen_info_idx].rf_disc_handle = NFA_HANDLE_INVALID;
160 }
161 }
162 }
163
164 nfa_sys_cback_notify_nfcc_power_mode_proc_complete (NFA_ID_CE);
165 }
166
167 /*******************************************************************************
168 **
169 ** Function nfa_ce_hdl_event
170 **
171 ** Description nfa rw main event handling function.
172 **
173 ** Returns BOOLEAN
174 **
175 *******************************************************************************/
nfa_ce_hdl_event(BT_HDR * p_msg)176 BOOLEAN nfa_ce_hdl_event (BT_HDR *p_msg)
177 {
178 UINT16 act_idx;
179 BOOLEAN freebuf = TRUE;
180
181 #if (BT_TRACE_VERBOSE == TRUE)
182 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);
183 #else
184 NFA_TRACE_EVENT2 ("nfa_ce_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_ce_cb.flags);
185 #endif
186
187 /* Get NFA_RW sub-event */
188 if ((act_idx = (p_msg->event & 0x00FF)) < NFA_CE_ACTION_TBL_SIZE)
189 {
190 freebuf = (*nfa_ce_action_tbl[act_idx]) ((tNFA_CE_MSG*) p_msg);
191 }
192
193 /* if vendor specific event handler is registered */
194 if (nfa_ce_cb.p_vs_evt_hdlr)
195 {
196 (*nfa_ce_cb.p_vs_evt_hdlr) (p_msg);
197 }
198
199 return freebuf;
200 }
201
202 #if (BT_TRACE_VERBOSE == TRUE)
203 /*******************************************************************************
204 **
205 ** Function nfa_ce_evt_2_str
206 **
207 ** Description convert nfc evt to string
208 **
209 *******************************************************************************/
nfa_ce_evt_2_str(UINT16 event)210 static char *nfa_ce_evt_2_str (UINT16 event)
211 {
212 switch (event)
213 {
214 case NFA_CE_API_CFG_LOCAL_TAG_EVT:
215 return "NFA_CE_API_CFG_LOCAL_TAG_EVT";
216
217 case NFA_CE_API_REG_LISTEN_EVT:
218 return "NFA_CE_API_REG_LISTEN_EVT";
219
220 case NFA_CE_API_DEREG_LISTEN_EVT:
221 return "NFA_CE_API_DEREG_LISTEN_EVT";
222
223 case NFA_CE_API_CFG_ISODEP_TECH_EVT:
224 return "NFA_CE_API_CFG_ISODEP_TECH_EVT";
225
226 case NFA_CE_ACTIVATE_NTF_EVT:
227 return "NFA_CE_ACTIVATE_NTF_EVT";
228
229 case NFA_CE_DEACTIVATE_NTF_EVT:
230 return "NFA_CE_DEACTIVATE_NTF_EVT";
231
232 default:
233 return "Unknown";
234 }
235 }
236 #endif /* BT_TRACE_VERBOSE */
237