1 /******************************************************************************
2 *
3 * Copyright (C) 2003-2012 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_RW
22 *
23 ******************************************************************************/
24 #include <string.h>
25 #include "nfa_rw_api.h"
26 #include "nfa_sys.h"
27 #include "nfa_rw_int.h"
28 #include "nfa_dm_int.h"
29 #include "nfa_sys_int.h"
30
31 /* NFA_RW control block */
32 tNFA_RW_CB nfa_rw_cb;
33
34 /*****************************************************************************
35 ** Constants and types
36 *****************************************************************************/
37 static const tNFA_SYS_REG nfa_rw_sys_reg =
38 {
39 NULL,
40 nfa_rw_handle_event,
41 nfa_rw_sys_disable,
42 NULL
43 };
44
45 /* NFA_RW actions */
46 const tNFA_RW_ACTION nfa_rw_action_tbl[] =
47 {
48 nfa_rw_handle_op_req, /* NFA_RW_OP_REQUEST_EVT */
49 nfa_rw_activate_ntf, /* NFA_RW_ACTIVATE_NTF_EVT */
50 nfa_rw_deactivate_ntf, /* NFA_RW_DEACTIVATE_NTF_EVT */
51 nfa_rw_presence_check_tick, /* NFA_RW_PRESENCE_CHECK_TICK_EVT */
52 };
53
54
55 /*****************************************************************************
56 ** Local function prototypes
57 *****************************************************************************/
58 #if (BT_TRACE_VERBOSE == TRUE)
59 static char *nfa_rw_evt_2_str (UINT16 event);
60 #endif
61
62 /*******************************************************************************
63 **
64 ** Function nfa_rw_init
65 **
66 ** Description Initialize NFA RW
67 **
68 ** Returns None
69 **
70 *******************************************************************************/
nfa_rw_init(void)71 void nfa_rw_init (void)
72 {
73 NFA_TRACE_DEBUG0 ("nfa_rw_init ()");
74
75 /* initialize control block */
76 memset (&nfa_rw_cb, 0, sizeof (tNFA_RW_CB));
77
78 /* register message handler on NFA SYS */
79 nfa_sys_register (NFA_ID_RW, &nfa_rw_sys_reg);
80 }
81
82 /*******************************************************************************
83 **
84 ** Function nfa_rw_sys_disable
85 **
86 ** Description Clean up rw sub-system
87 **
88 **
89 ** Returns void
90 **
91 *******************************************************************************/
nfa_rw_sys_disable(void)92 void nfa_rw_sys_disable (void)
93 {
94 /* Return to idle */
95 NFC_SetStaticRfCback (NULL);
96
97 /* Stop presence check timer (if started) */
98 nfa_rw_stop_presence_check_timer ();
99
100 /* Free scratch buffer if any */
101 nfa_rw_free_ndef_rx_buf ();
102
103 /* Free pending command if any */
104 if (nfa_rw_cb.p_pending_msg)
105 {
106 GKI_freebuf (nfa_rw_cb.p_pending_msg);
107 nfa_rw_cb.p_pending_msg = NULL;
108 }
109
110 nfa_sys_deregister (NFA_ID_RW);
111 }
112
113 /*******************************************************************************
114 **
115 ** Function nfa_rw_proc_disc_evt
116 **
117 ** Description Called by nfa_dm to handle ACTIVATED/DEACTIVATED events
118 **
119 ** Returns void
120 **
121 *******************************************************************************/
nfa_rw_proc_disc_evt(tNFA_DM_RF_DISC_EVT event,tNFC_DISCOVER * p_data,BOOLEAN excl_rf_not_active)122 void nfa_rw_proc_disc_evt (tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER *p_data, BOOLEAN excl_rf_not_active)
123 {
124 tNFA_RW_MSG msg;
125
126 switch (event)
127 {
128 case NFA_DM_RF_DISC_ACTIVATED_EVT:
129 msg.hdr.event = NFA_RW_ACTIVATE_NTF_EVT;
130 msg.activate_ntf.p_activate_params = &p_data->activate;
131 msg.activate_ntf.excl_rf_not_active = excl_rf_not_active;
132
133 nfa_rw_handle_event ((BT_HDR *) &msg);
134 break;
135
136 case NFA_DM_RF_DISC_DEACTIVATED_EVT:
137 msg.hdr.event = NFA_RW_DEACTIVATE_NTF_EVT;
138
139 nfa_rw_handle_event ((BT_HDR *) &msg);
140 break;
141
142 default:
143 break;
144 }
145 }
146
147 /*******************************************************************************
148 **
149 ** Function nfa_rw_send_raw_frame
150 **
151 ** Description Called by nfa_dm to send raw frame
152 **
153 ** Returns tNFA_STATUS
154 **
155 *******************************************************************************/
nfa_rw_send_raw_frame(BT_HDR * p_data)156 tNFA_STATUS nfa_rw_send_raw_frame (BT_HDR *p_data)
157 {
158 tNFA_RW_MSG msg;
159
160 msg.hdr.event = NFA_RW_OP_REQUEST_EVT;
161 msg.op_req.op = NFA_RW_OP_SEND_RAW_FRAME;
162
163 msg.op_req.params.send_raw_frame.p_data = p_data;
164
165 nfa_rw_handle_event ((BT_HDR *) &msg);
166 return (NFA_STATUS_OK);
167 }
168
169 /*******************************************************************************
170 **
171 ** Function nfa_rw_handle_event
172 **
173 ** Description nfa rw main event handling function.
174 **
175 ** Returns TRUE if caller should free p_msg buffer
176 **
177 *******************************************************************************/
nfa_rw_handle_event(BT_HDR * p_msg)178 BOOLEAN nfa_rw_handle_event(BT_HDR *p_msg)
179 {
180 UINT16 act_idx;
181
182 #if (BT_TRACE_VERBOSE == TRUE)
183 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);
184 #else
185 NFA_TRACE_EVENT2 ("nfa_rw_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_rw_cb.flags);
186 #endif
187
188 /* Get NFA_RW sub-event */
189 if ((act_idx = (p_msg->event & 0x00FF)) < (NFA_RW_MAX_EVT & 0xFF))
190 {
191 return (*nfa_rw_action_tbl[act_idx]) ( (tNFA_RW_MSG*) p_msg);
192 }
193 else
194 {
195 NFA_TRACE_ERROR1 ("nfa_rw_handle_event: unhandled event 0x%02X", p_msg->event);
196 return TRUE;
197 }
198 }
199
200
201 #if (BT_TRACE_VERBOSE == TRUE)
202 /*******************************************************************************
203 **
204 ** Function nfa_rw_evt_2_str
205 **
206 ** Description convert nfa_rw evt to string
207 **
208 *******************************************************************************/
nfa_rw_evt_2_str(UINT16 event)209 static char *nfa_rw_evt_2_str (UINT16 event)
210 {
211 switch (event)
212 {
213 case NFA_RW_OP_REQUEST_EVT:
214 return "NFA_RW_OP_REQUEST_EVT";
215
216 case NFA_RW_ACTIVATE_NTF_EVT:
217 return "NFA_RW_ACTIVATE_NTF_EVT";
218
219 case NFA_RW_DEACTIVATE_NTF_EVT:
220 return "NFA_RW_DEACTIVATE_NTF_EVT";
221
222 case NFA_RW_PRESENCE_CHECK_TICK_EVT:
223 return "NFA_RW_PRESENCE_CHECK_TICK_EVT";
224
225 default:
226 return "Unknown";
227 }
228 }
229 #endif /* BT_TRACE_VERBOSE */
230