1 /******************************************************************************
2 *
3 * Copyright (c) 2014 The Android Open Source Project
4 * Copyright (C) 2003-2012 Broadcom Corporation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 ******************************************************************************/
19
20 #include <string.h>
21 #include <stdlib.h>
22 #include "common/bt_defs.h"
23 #include "bta/bta_api.h"
24 #include "bta/bta_sys.h"
25 #include "bta/bta_hf_client_api.h"
26 #include "bta_hf_client_int.h"
27
28 #if BT_HF_CLIENT_BQB_INCLUDED
29 static BOOLEAN s_bta_hf_client_bqb_clip_flag = TRUE;
30 #endif /* BT_HF_CLIENT_BQB_INCLUDED */
31
32 #if (BTA_HF_INCLUDED == TRUE)
33 /* uncomment to enable extra debug */
34 /* #define BTA_HF_CLIENT_DEBUG TRUE */
35
36 #ifndef BTA_HF_CLIENT_DEBUG
37 #define BTA_HF_CLIENT_DEBUG FALSE
38 #endif
39
40 #if BTA_HF_CLIENT_DEBUG == TRUE
41 static char *bta_hf_client_evt_str(UINT16 event);
42 static char *bta_hf_client_state_str(UINT8 state);
43 #endif
44
45 /* state machine states */
46 enum {
47 BTA_HF_CLIENT_INIT_ST,
48 BTA_HF_CLIENT_OPENING_ST,
49 BTA_HF_CLIENT_OPEN_ST,
50 BTA_HF_CLIENT_CLOSING_ST
51 };
52
53 /* state machine action enumeration list */
54 enum {
55 BTA_HF_CLIENT_REGISTER,
56 BTA_HF_CLIENT_DEREGISTER,
57 BTA_HF_CLIENT_START_DEREG,
58 BTA_HF_CLIENT_RFC_DO_CLOSE,
59 BTA_HF_CLIENT_START_CLOSE,
60 BTA_HF_CLIENT_START_OPEN,
61 BTA_HF_CLIENT_RFC_ACP_OPEN,
62 BTA_HF_CLIENT_SCO_LISTEN,
63 BTA_HF_CLIENT_SCO_CONN_OPEN,
64 BTA_HF_CLIENT_SCO_CONN_CLOSE,
65 BTA_HF_CLIENT_SCO_OPEN,
66 BTA_HF_CLIENT_SCO_CLOSE,
67 BTA_HF_CLIENT_SCO_SHUTDOWN,
68 BTA_HF_CLIENT_FREE_DB,
69 BTA_HF_CLIENT_OPEN_FAIL,
70 BTA_HF_CLIENT_RFC_OPEN,
71 BTA_HF_CLIENT_RFC_FAIL,
72 BTA_HF_CLIENT_DISC_INT_RES,
73 BTA_HF_CLIENT_RFC_DO_OPEN,
74 BTA_HF_CLIENT_DISC_FAIL,
75 BTA_HF_CLIENT_RFC_CLOSE,
76 BTA_HF_CLIENT_RFC_DATA,
77 BTA_HF_CLIENT_DISC_ACP_RES,
78 BTA_HF_CLIENT_SVC_CONN_OPEN,
79 BTA_HF_CLIENT_SEND_AT_CMD,
80 #if (BTM_SCO_HCI_INCLUDED == TRUE)
81 BTA_HF_CLIENT_CI_SCO_DATA,
82 BTA_HF_CLIENT_PKT_STAT_NUMS,
83 #endif
84 BTA_HF_CLIENT_NUM_ACTIONS,
85 };
86
87 #define BTA_HF_CLIENT_IGNORE BTA_HF_CLIENT_NUM_ACTIONS
88
89 /* type for action functions */
90 typedef void (*tBTA_HF_CLIENT_ACTION)(tBTA_HF_CLIENT_DATA *p_data);
91
92 /* action functions table, indexed with action enum */
93 const tBTA_HF_CLIENT_ACTION bta_hf_client_action[] = {
94 /* BTA_HF_CLIENT_REGISTER */ bta_hf_client_register,
95 /* BTA_HF_CLIENT_DEREGISTER */ bta_hf_client_deregister,
96 /* BTA_HF_CLIENT_START_DEREG */ bta_hf_client_start_dereg,
97 /* BTA_HF_CLIENT_RFC_DO_CLOSE */ bta_hf_client_rfc_do_close,
98 /* BTA_HF_CLIENT_START_CLOSE */ bta_hf_client_start_close,
99 /* BTA_HF_CLIENT_START_OPEN */ bta_hf_client_start_open,
100 /* BTA_HF_CLIENT_RFC_ACP_OPEN */ bta_hf_client_rfc_acp_open,
101 /* BTA_HF_CLIENT_SCO_LISTEN */ bta_hf_client_sco_listen,
102 /* BTA_HF_CLIENT_SCO_CONN_OPEN */ bta_hf_client_sco_conn_open,
103 /* BTA_HF_CLIENT_SCO_CONN_CLOSE*/ bta_hf_client_sco_conn_close,
104 /* BTA_HF_CLIENT_SCO_OPEN */ bta_hf_client_sco_open,
105 /* BTA_HF_CLIENT_SCO_CLOSE */ bta_hf_client_sco_close,
106 /* BTA_HF_CLIENT_SCO_SHUTDOWN */ bta_hf_client_sco_shutdown,
107 /* BTA_HF_CLIENT_FREE_DB */ bta_hf_client_free_db,
108 /* BTA_HF_CLIENT_OPEN_FAIL */ bta_hf_client_open_fail,
109 /* BTA_HF_CLIENT_RFC_OPEN */ bta_hf_client_rfc_open,
110 /* BTA_HF_CLIENT_RFC_FAIL */ bta_hf_client_rfc_fail,
111 /* BTA_HF_CLIENT_DISC_INT_RES */ bta_hf_client_disc_int_res,
112 /* BTA_HF_CLIENT_RFC_DO_OPEN */ bta_hf_client_rfc_do_open,
113 /* BTA_HF_CLIENT_DISC_FAIL */ bta_hf_client_disc_fail,
114 /* BTA_HF_CLIENT_RFC_CLOSE */ bta_hf_client_rfc_close,
115 /* BTA_HF_CLIENT_RFC_DATA */ bta_hf_client_rfc_data,
116 /* BTA_HF_CLIENT_DISC_ACP_RES */ bta_hf_client_disc_acp_res,
117 /* BTA_HF_CLIENT_SVC_CONN_OPEN */ bta_hf_client_svc_conn_open,
118 /* BTA_HF_CLIENT_SEND_AT_CMD */ bta_hf_client_send_at_cmd,
119 #if (BTM_SCO_HCI_INCLUDED == TRUE)
120 /* BTA_HF_CLIENT_CI_SCO_DATA */ bta_hf_client_ci_sco_data,
121 /* BTA_HF_CLIENT_PKT_STAT_NUMS */ bta_hf_client_pkt_stat_nums,
122 #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
123 };
124
125 /* state table information */
126 #define BTA_HF_CLIENT_ACTIONS 2 /* number of actions */
127 #define BTA_HF_CLIENT_NEXT_STATE 2 /* position of next state */
128 #define BTA_HF_CLIENT_NUM_COLS 3 /* number of columns in state tables */
129
130 /* state table for init state */
131 const UINT8 bta_hf_client_st_init[][BTA_HF_CLIENT_NUM_COLS] = {
132 /* Event Action 1 Action 2 Next state */
133 /* API_REGISTER_EVT */ {BTA_HF_CLIENT_REGISTER, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
134 /* API_DEREGISTER_EVT */ {BTA_HF_CLIENT_DEREGISTER, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
135 /* API_OPEN_EVT */ {BTA_HF_CLIENT_START_OPEN, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
136 /* API_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
137 /* API_AUDIO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
138 /* API_AUDIO_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
139 /* RFC_OPEN_EVT */ {BTA_HF_CLIENT_RFC_ACP_OPEN, BTA_HF_CLIENT_SCO_LISTEN, BTA_HF_CLIENT_OPEN_ST},
140 /* RFC_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
141 /* RFC_SRV_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
142 /* RFC_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
143 /* DISC_ACP_RES_EVT */ {BTA_HF_CLIENT_FREE_DB, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
144 /* DISC_INT_RES_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
145 /* DISC_OK_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
146 /* DISC_FAIL_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
147 /* SCO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
148 /* SCO_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
149 /* SEND_AT_CMD_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
150 #if (BTM_SCO_HCI_INCLUDED == TRUE )
151 /* CI_SCO_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
152 /* PKT_STAT_NUMS_GET_EVT */ {BTA_HF_CLIENT_PKT_STAT_NUMS, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
153 #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
154 };
155
156 /* state table for opening state */
157 const UINT8 bta_hf_client_st_opening[][BTA_HF_CLIENT_NUM_COLS] = {
158 /* Event Action 1 Action 2 Next state */
159 /* API_REGISTER_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
160 /* API_DEREGISTER_EVT */ {BTA_HF_CLIENT_RFC_DO_CLOSE, BTA_HF_CLIENT_START_DEREG, BTA_HF_CLIENT_CLOSING_ST},
161 /* API_OPEN_EVT */ {BTA_HF_CLIENT_OPEN_FAIL, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
162 /* API_CLOSE_EVT */ {BTA_HF_CLIENT_RFC_DO_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
163 /* API_AUDIO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
164 /* API_AUDIO_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
165 /* RFC_OPEN_EVT */ {BTA_HF_CLIENT_RFC_OPEN, BTA_HF_CLIENT_SCO_LISTEN, BTA_HF_CLIENT_OPEN_ST},
166 /* RFC_CLOSE_EVT */ {BTA_HF_CLIENT_RFC_FAIL, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
167 /* RFC_SRV_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
168 /* RFC_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
169 /* DISC_ACP_RES_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
170 /* DISC_INT_RES_EVT */ {BTA_HF_CLIENT_DISC_INT_RES, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
171 /* DISC_OK_EVT */ {BTA_HF_CLIENT_RFC_DO_OPEN, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
172 /* DISC_FAIL_EVT */ {BTA_HF_CLIENT_DISC_FAIL, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
173 /* SCO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
174 /* SCO_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
175 /* SEND_AT_CMD_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
176 #if (BTM_SCO_HCI_INCLUDED == TRUE)
177 /* CI_SCO_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
178 /* PKT_STAT_NUMS_GET_EVT */ {BTA_HF_CLIENT_PKT_STAT_NUMS, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPENING_ST},
179 #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
180 };
181
182 /* state table for open state */
183 const UINT8 bta_hf_client_st_open[][BTA_HF_CLIENT_NUM_COLS] = {
184 /* Event Action 1 Action 2 Next state */
185 /* API_REGISTER_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
186 /* API_DEREGISTER_EVT */ {BTA_HF_CLIENT_START_CLOSE, BTA_HF_CLIENT_START_DEREG, BTA_HF_CLIENT_CLOSING_ST},
187 /* API_OPEN_EVT */ {BTA_HF_CLIENT_OPEN_FAIL, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
188 /* API_CLOSE_EVT */ {BTA_HF_CLIENT_START_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
189 /* API_AUDIO_OPEN_EVT */ {BTA_HF_CLIENT_SCO_OPEN, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
190 /* API_AUDIO_CLOSE_EVT */ {BTA_HF_CLIENT_SCO_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
191 /* RFC_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
192 /* RFC_CLOSE_EVT */ {BTA_HF_CLIENT_RFC_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
193 /* RFC_SRV_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
194 /* RFC_DATA_EVT */ {BTA_HF_CLIENT_RFC_DATA, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
195 /* DISC_ACP_RES_EVT */ {BTA_HF_CLIENT_DISC_ACP_RES, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
196 /* DISC_INT_RES_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
197 /* DISC_OK_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
198 /* DISC_FAIL_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
199 /* SCO_OPEN_EVT */ {BTA_HF_CLIENT_SCO_CONN_OPEN, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
200 /* SCO_CLOSE_EVT */ {BTA_HF_CLIENT_SCO_CONN_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
201 /* SEND_AT_CMD_EVT */ {BTA_HF_CLIENT_SEND_AT_CMD, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
202 #if (BTM_SCO_HCI_INCLUDED == TRUE )
203 /* CI_SCO_DATA_EVT */ {BTA_HF_CLIENT_CI_SCO_DATA, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
204 /* PKT_STAT_NUMS_GET_EVT */ {BTA_HF_CLIENT_PKT_STAT_NUMS, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_OPEN_ST},
205 #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
206 };
207
208 /* state table for closing state */
209 const UINT8 bta_hf_client_st_closing[][BTA_HF_CLIENT_NUM_COLS] = {
210 /* Event Action 1 Action 2 Next state */
211 /* API_REGISTER_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
212 /* API_DEREGISTER_EVT */ {BTA_HF_CLIENT_START_DEREG, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
213 /* API_OPEN_EVT */ {BTA_HF_CLIENT_OPEN_FAIL, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
214 /* API_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
215 /* API_AUDIO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
216 /* API_AUDIO_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
217 /* RFC_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
218 /* RFC_CLOSE_EVT */ {BTA_HF_CLIENT_RFC_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
219 /* RFC_SRV_CLOSE_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
220 /* RFC_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
221 /* DISC_ACP_RES_EVT */ {BTA_HF_CLIENT_FREE_DB, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
222 /* DISC_INT_RES_EVT */ {BTA_HF_CLIENT_FREE_DB, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_INIT_ST},
223 /* DISC_OK_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
224 /* DISC_FAIL_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
225 /* SCO_OPEN_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
226 /* SCO_CLOSE_EVT */ {BTA_HF_CLIENT_SCO_CONN_CLOSE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
227 /* SEND_AT_CMD_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
228 #if (BTM_SCO_HCI_INCLUDED == TRUE )
229 /* CI_SCO_DATA_EVT */ {BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
230 /* PKT_STAT_NUMS_GET_EVT */ {BTA_HF_CLIENT_PKT_STAT_NUMS, BTA_HF_CLIENT_IGNORE, BTA_HF_CLIENT_CLOSING_ST},
231 #endif /* (BTM_SCO_HCI_INCLUDED == TRUE ) */
232 };
233
234 /* type for state table */
235 typedef const UINT8 (*tBTA_HF_CLIENT_ST_TBL)[BTA_HF_CLIENT_NUM_COLS];
236
237 /* state table */
238 const tBTA_HF_CLIENT_ST_TBL bta_hf_client_st_tbl[] = {
239 bta_hf_client_st_init,
240 bta_hf_client_st_opening,
241 bta_hf_client_st_open,
242 bta_hf_client_st_closing
243 };
244
245 const int bta_hf_client_version = HFP_HF_VERSION_1_7;
246
247 /* HF Client control block */
248 #if BTA_DYNAMIC_MEMORY == FALSE
249 tBTA_HF_CLIENT_CB bta_hf_client_cb;
250 #else
251 tBTA_HF_CLIENT_CB *bta_hf_client_cb_ptr;
252 #endif
253
254 /*******************************************************************************
255 **
256 ** Function bta_hf_client_bqb_clip_ctrl
257 **
258 ** Description Control if send the command AT+CLIP for BQB test
259 **
260 ** Returns void
261 **
262 *******************************************************************************/
263 #if BT_HF_CLIENT_BQB_INCLUDED
bta_hf_client_bqb_clip_ctrl(BOOLEAN enable)264 void bta_hf_client_bqb_clip_ctrl(BOOLEAN enable)
265 {
266 s_bta_hf_client_bqb_clip_flag = enable;
267 }
268 #endif /* BT_HF_CLIENT_BQB_INCLUDED */
269
270 /*******************************************************************************
271 **
272 ** Function bta_hf_client_scb_init
273 **
274 ** Description Initialize an HF_Client service control block.
275 **
276 **
277 ** Returns void
278 **
279 *******************************************************************************/
bta_hf_client_scb_init(void)280 void bta_hf_client_scb_init(void)
281 {
282 APPL_TRACE_DEBUG("%s", __FUNCTION__);
283
284 memset(&bta_hf_client_cb.scb, 0, sizeof(tBTA_HF_CLIENT_SCB));
285 bta_hf_client_cb.scb.sco_idx = BTM_INVALID_SCO_INDEX;
286 bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
287 }
288
289 /*******************************************************************************
290 **
291 ** Function bta_hf_client_scb_disable
292 **
293 ** Description Disable a service control block.
294 **
295 **
296 ** Returns void
297 **
298 *******************************************************************************/
bta_hf_client_scb_disable(void)299 void bta_hf_client_scb_disable(void)
300 {
301 APPL_TRACE_DEBUG("%s", __FUNCTION__);
302
303 bta_hf_client_scb_init();
304
305 (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_DISABLE_EVT, NULL);
306 }
307
308 /*******************************************************************************
309 **
310 ** Function bta_hf_client_resume_open
311 **
312 ** Description Resume opening process.
313 **
314 **
315 ** Returns void
316 **
317 *******************************************************************************/
bta_hf_client_resume_open(void)318 void bta_hf_client_resume_open (void)
319 {
320 APPL_TRACE_DEBUG ("%s", __FUNCTION__);
321
322 /* resume opening process. */
323 if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_INIT_ST) {
324 bta_hf_client_cb.scb.state = BTA_HF_CLIENT_OPENING_ST;
325 bta_hf_client_start_open (NULL);
326 }
327 }
328
329 /*******************************************************************************
330 **
331 ** Function bta_hf_client_colli_timer_cback
332 **
333 ** Description HF Client connection collision timer callback
334 **
335 **
336 ** Returns void
337 **
338 *******************************************************************************/
bta_hf_client_colli_timer_cback(TIMER_LIST_ENT * p_tle)339 static void bta_hf_client_colli_timer_cback (TIMER_LIST_ENT *p_tle)
340 {
341 APPL_TRACE_DEBUG("%s", __FUNCTION__);
342
343 if (p_tle) {
344 bta_hf_client_cb.scb.colli_tmr_on = FALSE;
345
346 /* If the peer haven't opened connection, restart opening process */
347 bta_hf_client_resume_open ();
348 }
349 }
350
351 /*******************************************************************************
352 **
353 ** Function bta_hf_client_collision_cback
354 **
355 ** Description Get notified about collision.
356 **
357 **
358 ** Returns void
359 **
360 *******************************************************************************/
bta_hf_client_collision_cback(tBTA_SYS_CONN_STATUS status,UINT8 id,UINT8 app_id,BD_ADDR peer_addr)361 void bta_hf_client_collision_cback (tBTA_SYS_CONN_STATUS status, UINT8 id,
362 UINT8 app_id, BD_ADDR peer_addr)
363 {
364 UNUSED(status);
365 UNUSED(app_id);
366 UNUSED(peer_addr);
367
368 if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_OPENING_ST) {
369 if (id == BTA_ID_SYS) { /* ACL collision */
370 APPL_TRACE_WARNING ("HF Client found collision (ACL) ...");
371 } else if (id == BTA_ID_HS) { /* RFCOMM collision */
372 APPL_TRACE_WARNING ("HF Client found collision (RFCOMM) ...");
373 } else {
374 APPL_TRACE_WARNING ("HF Client found collision (\?\?\?) ...");
375 }
376
377 bta_hf_client_cb.scb.state = BTA_HF_CLIENT_INIT_ST;
378
379 /* Cancel SDP if it had been started. */
380 if (bta_hf_client_cb.scb.p_disc_db) {
381 (void)SDP_CancelServiceSearch (bta_hf_client_cb.scb.p_disc_db);
382 bta_hf_client_free_db(NULL);
383 }
384
385 /* reopen registered server */
386 /* Collision may be detected before or after we close servers. */
387 bta_hf_client_start_server();
388
389 /* Start timer to handle connection opening restart */
390 bta_hf_client_cb.scb.colli_timer.p_cback = (TIMER_CBACK *)&bta_hf_client_colli_timer_cback;
391 bta_sys_start_timer(&bta_hf_client_cb.scb.colli_timer, 0, BTA_HF_CLIENT_COLLISION_TIMER);
392 bta_hf_client_cb.scb.colli_tmr_on = TRUE;
393 }
394 }
395
396 /*******************************************************************************
397 **
398 ** Function bta_hf_client_api_enable
399 **
400 ** Description Handle an API enable event.
401 **
402 **
403 ** Returns void
404 **
405 *******************************************************************************/
bta_hf_client_api_enable(tBTA_HF_CLIENT_DATA * p_data)406 static void bta_hf_client_api_enable(tBTA_HF_CLIENT_DATA *p_data)
407 {
408 /* initialize control block */
409 memset(&bta_hf_client_cb, 0, sizeof(tBTA_HF_CLIENT_CB));
410
411 /* store callback function */
412 bta_hf_client_cb.p_cback = p_data->api_enable.p_cback;
413
414 /* check if mSBC support enabled */
415 if (bta_hf_client_version >= HFP_HF_VERSION_1_6) {
416 #if (BTM_WBS_INCLUDED == TRUE)
417 bta_hf_client_cb.msbc_enabled = TRUE;
418 #else
419 bta_hf_client_cb.msbc_enabled = FALSE;
420 #endif
421 } else{
422 bta_hf_client_cb.msbc_enabled = FALSE;
423 }
424
425 bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
426
427 /* set same setting as AG does */
428 BTM_WriteVoiceSettings(AG_VOICE_SETTINGS);
429
430 bta_sys_collision_register (BTA_ID_HS, bta_hf_client_collision_cback);
431
432 /* call callback with enable event */
433 (*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_ENABLE_EVT, NULL);
434 }
435
436 /*******************************************************************************
437 **
438 ** Function bta_hf_client_api_disable
439 **
440 ** Description Handle an API disable event.
441 **
442 **
443 ** Returns void
444 **
445 *******************************************************************************/
bta_hf_client_api_disable(tBTA_HF_CLIENT_DATA * p_data)446 static void bta_hf_client_api_disable(tBTA_HF_CLIENT_DATA *p_data)
447 {
448 if (!bta_sys_is_register (BTA_ID_HS)) {
449 APPL_TRACE_ERROR("BTA HF Client is already disabled, ignoring ...");
450 return;
451 }
452
453 /* De-register with BTA system manager */
454 bta_sys_deregister(BTA_ID_HS);
455
456 bta_hf_client_sm_execute(BTA_HF_CLIENT_API_DEREGISTER_EVT, p_data);
457
458 bta_sys_collision_register (BTA_ID_HS, NULL);
459 }
460
461 /*******************************************************************************
462 **
463 ** Function bta_hf_client_hdl_event
464 **
465 ** Description Data HF Client main event handling function.
466 **
467 **
468 ** Returns BOOLEAN
469 **
470 *******************************************************************************/
bta_hf_client_hdl_event(BT_HDR * p_msg)471 BOOLEAN bta_hf_client_hdl_event(BT_HDR *p_msg)
472 {
473 #if BTA_HF_CLIENT_DEBUG == TRUE
474 APPL_TRACE_DEBUG("bta_hf_client_hdl_event %s (0x%x)", bta_hf_client_evt_str(p_msg->event), p_msg->event);
475 #endif
476
477 switch (p_msg->event) {
478 /* handle enable event */
479 case BTA_HF_CLIENT_API_ENABLE_EVT:
480 bta_hf_client_api_enable((tBTA_HF_CLIENT_DATA *) p_msg);
481 break;
482
483 /* handle disable event */
484 case BTA_HF_CLIENT_API_DISABLE_EVT:
485 bta_hf_client_api_disable((tBTA_HF_CLIENT_DATA *) p_msg);
486 break;
487
488 default:
489 bta_hf_client_sm_execute(p_msg->event, (tBTA_HF_CLIENT_DATA *) p_msg);
490 break;
491 }
492 return TRUE;
493 }
494
495 /*******************************************************************************
496 **
497 ** Function bta_hf_client_sm_execute
498 **
499 ** Description State machine event handling function for HF Client
500 **
501 **
502 ** Returns void
503 **
504 *******************************************************************************/
bta_hf_client_sm_execute(UINT16 event,tBTA_HF_CLIENT_DATA * p_data)505 void bta_hf_client_sm_execute(UINT16 event, tBTA_HF_CLIENT_DATA *p_data)
506 {
507 tBTA_HF_CLIENT_ST_TBL state_table;
508 UINT8 action;
509 int i;
510
511 #if BTA_HF_CLIENT_DEBUG == TRUE
512 UINT16 in_event = event;
513 UINT8 in_state = bta_hf_client_cb.scb.state;
514
515 /* Ignore displaying of AT results when not connected (Ignored in state machine) */
516 if (bta_hf_client_cb.scb.state == BTA_HF_CLIENT_OPEN_ST) {
517 APPL_TRACE_EVENT("HF Client evt : State %d (%s), Event 0x%04x (%s)",
518 bta_hf_client_cb.scb.state,
519 bta_hf_client_state_str(bta_hf_client_cb.scb.state),
520 event, bta_hf_client_evt_str(event));
521 }
522 #endif
523
524 event &= 0x00FF;
525 if (event >= (BTA_HF_CLIENT_MAX_EVT & 0x00FF)) {
526 APPL_TRACE_ERROR("HF Client evt out of range, ignoring...");
527 return;
528 }
529
530 /* look up the state table for the current state */
531 state_table = bta_hf_client_st_tbl[bta_hf_client_cb.scb.state];
532
533 /* set next state */
534 bta_hf_client_cb.scb.state = state_table[event][BTA_HF_CLIENT_NEXT_STATE];
535
536 /* execute action functions */
537 for (i = 0; i < BTA_HF_CLIENT_ACTIONS; i++) {
538 if ((action = state_table[event][i]) != BTA_HF_CLIENT_IGNORE) {
539 (*bta_hf_client_action[action])(p_data);
540 } else {
541 break;
542 }
543 }
544
545 #if BTA_HF_CLIENT_DEBUG == TRUE
546 if (bta_hf_client_cb.scb.state != in_state) {
547 APPL_TRACE_EVENT("BTA HF Client State Change: [%s] -> [%s] after Event [%s]",
548 bta_hf_client_state_str(in_state),
549 bta_hf_client_state_str(bta_hf_client_cb.scb.state),
550 bta_hf_client_evt_str(in_event));
551 }
552 #endif
553 }
554
send_post_slc_cmd(void)555 static void send_post_slc_cmd(void)
556 {
557 bta_hf_client_cb.scb.at_cb.current_cmd = BTA_HF_CLIENT_AT_NONE;
558
559 bta_hf_client_send_at_bia();
560 bta_hf_client_send_at_ccwa(TRUE);
561 bta_hf_client_send_at_cmee(TRUE);
562 bta_hf_client_send_at_cops(FALSE);
563 bta_hf_client_send_at_btrh(TRUE, 0);
564
565 #if BT_HF_CLIENT_BQB_INCLUDED
566 if (s_bta_hf_client_bqb_clip_flag == TRUE) {
567 bta_hf_client_send_at_clip(TRUE);
568 }
569 #else
570 bta_hf_client_send_at_clip(TRUE);
571 #endif /* BT_HF_CLIENT_BQB_INCLUDED */
572 }
573
574 /*******************************************************************************
575 **
576 ** Function bta_hf_client_slc_seq
577 **
578 ** Description Handles AT commands sequence required for SLC creation
579 **
580 **
581 ** Returns void
582 **
583 *******************************************************************************/
bta_hf_client_slc_seq(BOOLEAN error)584 void bta_hf_client_slc_seq(BOOLEAN error)
585 {
586 APPL_TRACE_DEBUG("bta_hf_client_slc_seq cmd: %u", bta_hf_client_cb.scb.at_cb.current_cmd);
587
588 if (error) {
589 /* SLC establishment error, sent close rfcomm event */
590 APPL_TRACE_ERROR("HFPClient: Failed to create SLC due to AT error, disconnecting (%u)",
591 bta_hf_client_cb.scb.at_cb.current_cmd);
592
593 bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
594 return;
595 }
596
597 if (bta_hf_client_cb.scb.svc_conn) {
598 return;
599 }
600
601 switch (bta_hf_client_cb.scb.at_cb.current_cmd) {
602 case BTA_HF_CLIENT_AT_NONE:
603 bta_hf_client_send_at_brsf();
604 break;
605
606 case BTA_HF_CLIENT_AT_BRSF:
607 if (bta_hf_client_cb.scb.peer_features & BTA_HF_CLIENT_PEER_CODEC) {
608 bta_hf_client_send_at_bac();
609 break;
610 }
611
612 bta_hf_client_send_at_cind(FALSE);
613 break;
614
615 case BTA_HF_CLIENT_AT_BAC:
616 bta_hf_client_send_at_cind(FALSE);
617 break;
618
619 case BTA_HF_CLIENT_AT_CIND:
620 bta_hf_client_send_at_cind(TRUE);
621 break;
622
623 case BTA_HF_CLIENT_AT_CIND_STATUS:
624 bta_hf_client_send_at_cmer(TRUE);
625 break;
626
627 case BTA_HF_CLIENT_AT_CMER:
628 if (bta_hf_client_cb.scb.peer_features & BTA_HF_CLIENT_PEER_FEAT_3WAY) {
629 bta_hf_client_send_at_chld('?', 0);
630 } else {
631 bta_hf_client_svc_conn_open(NULL);
632 send_post_slc_cmd();
633 }
634 break;
635
636 case BTA_HF_CLIENT_AT_CHLD:
637 bta_hf_client_svc_conn_open(NULL);
638 send_post_slc_cmd();
639 break;
640
641 default:
642 /* If happen there is a bug in SLC creation procedure... */
643 APPL_TRACE_ERROR("HFPClient: Failed to create SLCdue to unexpected AT command, disconnecting (%u)",
644 bta_hf_client_cb.scb.at_cb.current_cmd);
645
646 bta_hf_client_sm_execute(BTA_HF_CLIENT_API_CLOSE_EVT, NULL);
647 break;
648 }
649 }
650
651 #if BTA_HF_CLIENT_DEBUG == TRUE
652
653 #ifndef CASE_RETURN_STR
654 #define CASE_RETURN_STR(const) case const: return #const;
655 #endif
656
bta_hf_client_evt_str(UINT16 event)657 static char *bta_hf_client_evt_str(UINT16 event)
658 {
659 switch (event) {
660 CASE_RETURN_STR(BTA_HF_CLIENT_API_REGISTER_EVT)
661 CASE_RETURN_STR(BTA_HF_CLIENT_API_DEREGISTER_EVT)
662 CASE_RETURN_STR(BTA_HF_CLIENT_API_OPEN_EVT)
663 CASE_RETURN_STR(BTA_HF_CLIENT_API_CLOSE_EVT)
664 CASE_RETURN_STR(BTA_HF_CLIENT_API_AUDIO_OPEN_EVT)
665 CASE_RETURN_STR(BTA_HF_CLIENT_API_AUDIO_CLOSE_EVT)
666 CASE_RETURN_STR(BTA_HF_CLIENT_RFC_OPEN_EVT)
667 CASE_RETURN_STR(BTA_HF_CLIENT_RFC_CLOSE_EVT)
668 CASE_RETURN_STR(BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT)
669 CASE_RETURN_STR(BTA_HF_CLIENT_RFC_DATA_EVT)
670 CASE_RETURN_STR(BTA_HF_CLIENT_DISC_ACP_RES_EVT)
671 CASE_RETURN_STR(BTA_HF_CLIENT_DISC_INT_RES_EVT)
672 CASE_RETURN_STR(BTA_HF_CLIENT_DISC_OK_EVT)
673 CASE_RETURN_STR(BTA_HF_CLIENT_DISC_FAIL_EVT)
674 CASE_RETURN_STR(BTA_HF_CLIENT_API_ENABLE_EVT)
675 CASE_RETURN_STR(BTA_HF_CLIENT_API_DISABLE_EVT)
676 CASE_RETURN_STR(BTA_HF_CLIENT_SCO_OPEN_EVT)
677 CASE_RETURN_STR(BTA_HF_CLIENT_SCO_CLOSE_EVT)
678 CASE_RETURN_STR(BTA_HF_CLIENT_SEND_AT_CMD_EVT)
679 CASE_RETURN_STR(BTA_HF_CLIENT_PKT_NUMS_GET_EVT)
680 default:
681 return "Unknown HF Client Event";
682 }
683 }
684
bta_hf_client_state_str(UINT8 state)685 static char *bta_hf_client_state_str(UINT8 state)
686 {
687 switch (state) {
688 CASE_RETURN_STR(BTA_HF_CLIENT_INIT_ST)
689 CASE_RETURN_STR(BTA_HF_CLIENT_OPENING_ST)
690 CASE_RETURN_STR(BTA_HF_CLIENT_OPEN_ST)
691 CASE_RETURN_STR(BTA_HF_CLIENT_CLOSING_ST)
692 default:
693 return "Unknown HF Client State";
694 }
695 }
696 #endif
697 #endif /* #if (BTA_HF_INCLUDED == TRUE) */
698
