1 /******************************************************************************
2 *
3 * Copyright (C) 2003-2014 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_RW
23 *
24 ******************************************************************************/
25 #include <string.h>
26 #include "nfa_rw_api.h"
27 #include "nfa_sys.h"
28 #include "nfa_rw_int.h"
29 #include "nfa_dm_int.h"
30 #include "nfa_sys_int.h"
31
32 /* NFA_RW control block */
33 tNFA_RW_CB nfa_rw_cb;
34
35 /*****************************************************************************
36 ** Constants and types
37 *****************************************************************************/
38 static const tNFA_SYS_REG nfa_rw_sys_reg =
39 {
40 NULL,
41 nfa_rw_handle_event,
42 nfa_rw_sys_disable,
43 NULL
44 };
45
46 /* NFA_RW actions */
47 const tNFA_RW_ACTION nfa_rw_action_tbl[] =
48 {
49 nfa_rw_handle_op_req, /* NFA_RW_OP_REQUEST_EVT */
50 nfa_rw_activate_ntf, /* NFA_RW_ACTIVATE_NTF_EVT */
51 nfa_rw_deactivate_ntf, /* NFA_RW_DEACTIVATE_NTF_EVT */
52 nfa_rw_presence_check_tick, /* NFA_RW_PRESENCE_CHECK_TICK_EVT */
53 nfa_rw_presence_check_timeout /* NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT*/
54 };
55
56
57 /*****************************************************************************
58 ** Local function prototypes
59 *****************************************************************************/
60 #if (BT_TRACE_VERBOSE == TRUE)
61 static char *nfa_rw_evt_2_str (UINT16 event);
62 #endif
63
64 /*******************************************************************************
65 **
66 ** Function nfa_rw_init
67 **
68 ** Description Initialize NFA RW
69 **
70 ** Returns None
71 **
72 *******************************************************************************/
nfa_rw_init(void)73 void nfa_rw_init (void)
74 {
75 NFA_TRACE_DEBUG0 ("nfa_rw_init ()");
76
77 /* initialize control block */
78 memset (&nfa_rw_cb, 0, sizeof (tNFA_RW_CB));
79
80 /* register message handler on NFA SYS */
81 nfa_sys_register (NFA_ID_RW, &nfa_rw_sys_reg);
82 }
83
84 /*******************************************************************************
85 **
86 ** Function nfa_rw_sys_disable
87 **
88 ** Description Clean up rw sub-system
89 **
90 **
91 ** Returns void
92 **
93 *******************************************************************************/
nfa_rw_sys_disable(void)94 void nfa_rw_sys_disable (void)
95 {
96 /* Return to idle */
97 NFC_SetStaticRfCback (NULL);
98
99 /* Stop presence check timer (if started) */
100 nfa_rw_stop_presence_check_timer ();
101
102 /* Free scratch buffer if any */
103 nfa_rw_free_ndef_rx_buf ();
104
105 /* Free pending command if any */
106 if (nfa_rw_cb.p_pending_msg)
107 {
108 GKI_freebuf (nfa_rw_cb.p_pending_msg);
109 nfa_rw_cb.p_pending_msg = NULL;
110 }
111
112 nfa_sys_deregister (NFA_ID_RW);
113 }
114
115 /*******************************************************************************
116 **
117 ** Function nfa_rw_proc_disc_evt
118 **
119 ** Description Called by nfa_dm to handle ACTIVATED/DEACTIVATED events
120 **
121 ** Returns void
122 **
123 *******************************************************************************/
nfa_rw_proc_disc_evt(tNFA_DM_RF_DISC_EVT event,tNFC_DISCOVER * p_data,BOOLEAN excl_rf_not_active)124 void nfa_rw_proc_disc_evt (tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER *p_data, BOOLEAN excl_rf_not_active)
125 {
126 tNFA_RW_MSG msg;
127
128 switch (event)
129 {
130 case NFA_DM_RF_DISC_ACTIVATED_EVT:
131 msg.hdr.event = NFA_RW_ACTIVATE_NTF_EVT;
132 msg.activate_ntf.p_activate_params = &p_data->activate;
133 msg.activate_ntf.excl_rf_not_active = excl_rf_not_active;
134
135 nfa_rw_handle_event ((BT_HDR *) &msg);
136 break;
137
138 case NFA_DM_RF_DISC_DEACTIVATED_EVT:
139 msg.hdr.event = NFA_RW_DEACTIVATE_NTF_EVT;
140
141 nfa_rw_handle_event ((BT_HDR *) &msg);
142 break;
143
144 default:
145 break;
146 }
147 }
148
149 /*******************************************************************************
150 **
151 ** Function nfa_rw_send_raw_frame
152 **
153 ** Description Called by nfa_dm to send raw frame
154 **
155 ** Returns tNFA_STATUS
156 **
157 *******************************************************************************/
nfa_rw_send_raw_frame(BT_HDR * p_data)158 tNFA_STATUS nfa_rw_send_raw_frame (BT_HDR *p_data)
159 {
160 tNFA_RW_MSG *p_msg;
161
162 if ((p_msg = (tNFA_RW_MSG *) GKI_getbuf ((UINT16) sizeof(tNFA_RW_MSG))) != NULL)
163 {
164 p_msg->hdr.event = NFA_RW_OP_REQUEST_EVT;
165 p_msg->op_req.op = NFA_RW_OP_SEND_RAW_FRAME;
166
167 p_msg->op_req.params.send_raw_frame.p_data = p_data;
168
169 if (nfa_rw_handle_event ((BT_HDR *) p_msg))
170 GKI_freebuf (p_msg);
171
172 return (NFA_STATUS_OK);
173 }
174 return NFA_STATUS_FAILED;
175 }
176
177 /*******************************************************************************
178 **
179 ** Function nfa_rw_handle_event
180 **
181 ** Description nfa rw main event handling function.
182 **
183 ** Returns TRUE if caller should free p_msg buffer
184 **
185 *******************************************************************************/
nfa_rw_handle_event(BT_HDR * p_msg)186 BOOLEAN nfa_rw_handle_event(BT_HDR *p_msg)
187 {
188 UINT16 act_idx;
189
190 #if (BT_TRACE_VERBOSE == TRUE)
191 NFA_TRACE_EVENT3 ("nfa_rw_handle_event event: %s (0x%02x), flags: %08x", nfa_rw_evt_2_str (p_msg->event), p_msg->event, nfa_rw_cb.flags);
192 #else
193 NFA_TRACE_EVENT2 ("nfa_rw_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_rw_cb.flags);
194 #endif
195
196 /* Get NFA_RW sub-event */
197 if ((act_idx = (p_msg->event & 0x00FF)) < (NFA_RW_MAX_EVT & 0xFF))
198 {
199 return (*nfa_rw_action_tbl[act_idx]) ( (tNFA_RW_MSG*) p_msg);
200 }
201 else
202 {
203 NFA_TRACE_ERROR1 ("nfa_rw_handle_event: unhandled event 0x%02X", p_msg->event);
204 return TRUE;
205 }
206 }
207
208
209 #if (BT_TRACE_VERBOSE == TRUE)
210 /*******************************************************************************
211 **
212 ** Function nfa_rw_evt_2_str
213 **
214 ** Description convert nfa_rw evt to string
215 **
216 *******************************************************************************/
nfa_rw_evt_2_str(UINT16 event)217 static char *nfa_rw_evt_2_str (UINT16 event)
218 {
219 switch (event)
220 {
221 case NFA_RW_OP_REQUEST_EVT:
222 return "NFA_RW_OP_REQUEST_EVT";
223
224 case NFA_RW_ACTIVATE_NTF_EVT:
225 return "NFA_RW_ACTIVATE_NTF_EVT";
226
227 case NFA_RW_DEACTIVATE_NTF_EVT:
228 return "NFA_RW_DEACTIVATE_NTF_EVT";
229
230 case NFA_RW_PRESENCE_CHECK_TICK_EVT:
231 return "NFA_RW_PRESENCE_CHECK_TICK_EVT";
232
233 case NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT:
234 return "NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT";
235
236 default:
237 return "Unknown";
238 }
239 }
240 #endif /* BT_TRACE_VERBOSE */
241