1 /******************************************************************************
2 *
3 * Copyright (C) 2004-2012 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 file contains action functions for advanced audio/video stream
22 * state machine. these functions are shared by both audio and video
23 * streams.
24 *
25 ******************************************************************************/
26
27 #include "bt_target.h"
28 #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
29
30 #include <string.h>
31 #include "bta_av_int.h"
32 #include "avdt_api.h"
33 #include "bd.h"
34 #include "utl.h"
35 #include "l2c_api.h"
36 #include "l2cdefs.h"
37 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
38 #include "bta_ar_api.h"
39 #endif
40
41 /*****************************************************************************
42 ** Constants
43 *****************************************************************************/
44
45 /* the delay time in milliseconds to start service discovery on AVRCP */
46 #ifndef BTA_AV_RC_DISC_TIME_VAL
47 #define BTA_AV_RC_DISC_TIME_VAL 3500
48 #endif
49
50 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */
51 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
52 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
53 #endif
54
55 /* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */
56 #ifndef BTA_AV_RECONFIG_RETRY
57 #define BTA_AV_RECONFIG_RETRY 6
58 #endif
59
60 /* state machine states */
61 enum
62 {
63 BTA_AV_INIT_SST,
64 BTA_AV_INCOMING_SST,
65 BTA_AV_OPENING_SST,
66 BTA_AV_OPEN_SST,
67 BTA_AV_RCFG_SST,
68 BTA_AV_CLOSING_SST
69 };
70
71
72 /* the call out functions for audio stream */
73 const tBTA_AV_CO_FUNCTS bta_av_a2d_cos =
74 {
75 bta_av_co_audio_init,
76 bta_av_co_audio_disc_res,
77 bta_av_co_audio_getconfig,
78 bta_av_co_audio_setconfig,
79 bta_av_co_audio_open,
80 bta_av_co_audio_close,
81 bta_av_co_audio_start,
82 bta_av_co_audio_stop,
83 bta_av_co_audio_src_data_path,
84 bta_av_co_audio_delay
85 };
86
87 /* ssm action functions for audio stream */
88 const tBTA_AV_SACT bta_av_a2d_action[] =
89 {
90 bta_av_do_disc_a2d, /* BTA_AV_DO_DISC */
91 bta_av_cleanup, /* BTA_AV_CLEANUP */
92 bta_av_free_sdb, /* BTA_AV_FREE_SDB */
93 bta_av_config_ind, /* BTA_AV_CONFIG_IND */
94 bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */
95 bta_av_security_req, /* BTA_AV_SECURITY_REQ */
96 bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */
97 bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */
98 bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */
99 bta_av_str_opened, /* BTA_AV_STR_OPENED */
100 bta_av_security_ind, /* BTA_AV_SECURITY_IND */
101 bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */
102 bta_av_do_close, /* BTA_AV_DO_CLOSE */
103 bta_av_connect_req, /* BTA_AV_CONNECT_REQ */
104 bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */
105 bta_av_disc_results, /* BTA_AV_DISC_RESULTS */
106 bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
107 bta_av_open_failed, /* BTA_AV_OPEN_FAILED */
108 bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */
109 bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */
110 bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */
111 bta_av_conn_failed, /* BTA_AV_CONN_FAILED */
112 bta_av_do_start, /* BTA_AV_DO_START */
113 bta_av_str_stopped, /* BTA_AV_STR_STOPPED */
114 bta_av_reconfig, /* BTA_AV_RECONFIG */
115 bta_av_data_path, /* BTA_AV_DATA_PATH */
116 bta_av_start_ok, /* BTA_AV_START_OK */
117 bta_av_start_failed, /* BTA_AV_START_FAILED */
118 bta_av_str_closed, /* BTA_AV_STR_CLOSED */
119 bta_av_clr_cong, /* BTA_AV_CLR_CONG */
120 bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */
121 bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */
122 bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */
123 bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */
124 bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */
125 bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */
126 bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */
127 bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */
128 bta_av_security_rej, /* BTA_AV_SECURITY_REJ */
129 bta_av_open_rc, /* BTA_AV_OPEN_RC */
130 bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */
131 bta_av_save_caps, /* BTA_AV_SAVE_CAPS */
132 bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */
133 bta_av_cco_close, /* BTA_AV_CCO_CLOSE */
134 bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */
135 bta_av_role_res, /* BTA_AV_ROLE_RES */
136 bta_av_delay_co, /* BTA_AV_DELAY_CO */
137 bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */
138 NULL
139 };
140
141 /* these tables translate AVDT events to SSM events */
142 static const UINT16 bta_av_stream_evt_ok[] = {
143 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
144 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
145 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
146 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
147 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
148 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
149 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
150 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
151 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
152 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
153 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
154 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
155 0, /* AVDT_RECONFIG_IND_EVT */
156 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
157 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
158 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
159 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
160 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
161 #if (AVDT_REPORTING == TRUE)
162 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
163 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
164 #endif
165 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
166 0 /* AVDT_DELAY_REPORT_CFM_EVT */
167 };
168
169 static const UINT16 bta_av_stream_evt_fail[] = {
170 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
171 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
172 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
173 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
174 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
175 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
176 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
177 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
178 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
179 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
180 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
181 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
182 0, /* AVDT_RECONFIG_IND_EVT */
183 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
184 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
185 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
186 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
187 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
188 #if (AVDT_REPORTING == TRUE)
189 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
190 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
191 #endif
192 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
193 0 /* AVDT_DELAY_REPORT_CFM_EVT */
194 };
195
196 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
197 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
198 #if BTA_AV_NUM_STRS > 2
199 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
200 #endif
201 #if BTA_AV_NUM_STRS > 3
202 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
203 #endif
204 #if BTA_AV_NUM_STRS > 4
205 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
206 #endif
207 #if BTA_AV_NUM_STRS > 5
208 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
209 #endif
210 /* the array of callback functions to receive events from AVDT control channel */
211 tAVDT_CTRL_CBACK * const bta_av_dt_cback[] =
212 {
213 bta_av_stream0_cback
214 ,bta_av_stream1_cback
215 #if BTA_AV_NUM_STRS > 2
216 ,bta_av_stream2_cback
217 #endif
218 #if BTA_AV_NUM_STRS > 3
219 ,bta_av_stream3_cback
220 #endif
221 #if BTA_AV_NUM_STRS > 4
222 ,bta_av_stream4_cback
223 #endif
224 #if BTA_AV_NUM_STRS > 5
225 ,bta_av_stream5_cback
226 #endif
227 };
228
229 /*******************************************************************************
230 **
231 ** Function bta_av_save_addr
232 **
233 ** Description copy the bd_addr and maybe reset the supported flags
234 **
235 **
236 ** Returns void
237 **
238 *******************************************************************************/
bta_av_save_addr(tBTA_AV_SCB * p_scb,const BD_ADDR b)239 static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b)
240 {
241 APPL_TRACE_DEBUG2("bta_av_save_addr r:%d, s:%d",
242 p_scb->recfg_sup, p_scb->suspend_sup);
243 if(bdcmp(p_scb->peer_addr, b) != 0)
244 {
245 APPL_TRACE_ERROR0("reset flags");
246 /* a new addr, reset the supported flags */
247 p_scb->recfg_sup = TRUE;
248 p_scb->suspend_sup = TRUE;
249 }
250
251 /* do this copy anyway, just in case the first addr matches
252 * the control block one by accident */
253 bdcpy(p_scb->peer_addr, b);
254 }
255
256 /*******************************************************************************
257 **
258 ** Function bta_av_st_rc_timer
259 **
260 ** Description start the AVRC timer if no RC connection & CT is supported &
261 ** RC is used or
262 ** as ACP (we do not really know if we want AVRC)
263 **
264 ** Returns void
265 **
266 *******************************************************************************/
bta_av_st_rc_timer(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)267 void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
268 {
269
270 APPL_TRACE_DEBUG2("bta_av_st_rc_timer rc_handle:%d, use_rc: %d",
271 p_scb->rc_handle, p_scb->use_rc);
272 /* for outgoing RC connection as INT/CT */
273 if( (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
274 /*(bta_av_cb.features & BTA_AV_FEAT_RCCT) &&*/
275 (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)) )
276 {
277 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0)
278 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
279 else
280 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
281 }
282
283 }
284
285 /*******************************************************************************
286 **
287 ** Function bta_av_next_getcap
288 **
289 ** Description The function gets the capabilities of the next available
290 ** stream found in the discovery results.
291 **
292 ** Returns TRUE if we sent request to AVDT, FALSE otherwise.
293 **
294 *******************************************************************************/
bta_av_next_getcap(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)295 static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
296 {
297 int i;
298 tAVDT_GETCAP_REQ *p_req;
299 BOOLEAN sent_cmd = FALSE;
300
301 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++)
302 {
303 /* steam not in use, is a sink, and is the right media type (audio/video) */
304 if ((p_scb->sep_info[i].in_use == FALSE) &&
305 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
306 (p_scb->sep_info[i].media_type == p_scb->media_type))
307 {
308 p_scb->sep_info_idx = i;
309
310 /* we got a stream; get its capabilities */
311 if (p_scb->p_cap == NULL)
312 {
313 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG));
314 }
315 if (p_scb->p_cap == NULL)
316 {
317 i = p_scb->num_seps;
318 break;
319 }
320 if (p_scb->avdt_version >= AVDT_VERSION_SYNC)
321 {
322 p_req = AVDT_GetAllCapReq;
323 }
324 else
325 {
326 p_req = AVDT_GetCapReq;
327 }
328 (*p_req)(p_scb->peer_addr,
329 p_scb->sep_info[i].seid,
330 p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]);
331 sent_cmd = TRUE;
332 break;
333 }
334 }
335
336 /* if no streams available then stream open fails */
337 if (!sent_cmd)
338 {
339 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
340 }
341
342 return sent_cmd;
343
344 }
345
346 /*******************************************************************************
347 **
348 ** Function bta_av_proc_stream_evt
349 **
350 ** Description Utility function to compose stream events.
351 **
352 ** Returns void
353 **
354 *******************************************************************************/
bta_av_proc_stream_evt(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data,int index)355 void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index)
356 {
357 tBTA_AV_STR_MSG *p_msg;
358 UINT16 sec_len = 0;
359 tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index];
360 int xx;
361
362 if (p_data)
363 {
364 if (event == AVDT_SECURITY_IND_EVT)
365 {
366 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ?
367 p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN;
368 }
369 else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0)
370 {
371 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ?
372 p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN;
373 }
374 }
375
376 if (p_scb && (p_msg = (tBTA_AV_STR_MSG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_STR_MSG) + sec_len))) != NULL)
377 {
378
379 /* copy event data, bd addr, and handle to event message buffer */
380 p_msg->hdr.offset = 0;
381
382 if (bd_addr != NULL)
383 {
384 bdcpy(p_msg->bd_addr, bd_addr);
385 APPL_TRACE_DEBUG6(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
386 bd_addr[0], bd_addr[1],
387 bd_addr[2], bd_addr[3],
388 bd_addr[4], bd_addr[5]);
389 }
390
391 if (p_data != NULL)
392 {
393 memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL));
394 /* copy config params to event message buffer */
395 switch (event)
396 {
397 case AVDT_CONFIG_IND_EVT:
398 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP.
399 * If we already have a signalling connection with the bd_addr and the streaming
400 * SST is at INIT state, change it to INCOMING state to handle the signalling
401 * from the 2nd SEP. */
402 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb)))
403 {
404 bta_av_set_scb_sst_incoming (p_scb);
405
406 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state.
407 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to
408 * incoming which we do it above.
409 * We also have to set the old p_scb state to init to be used later */
410 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++)
411 {
412 if ((bta_av_cb.p_scb[xx]) && (xx != index))
413 {
414 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST)
415 {
416 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST;
417 bta_av_cb.p_scb[xx]->coll_mask = 0;
418 break;
419 }
420 }
421 }
422 }
423
424 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG));
425 break;
426
427 case AVDT_SECURITY_IND_EVT:
428 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1);
429 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len);
430 break;
431
432 case AVDT_SECURITY_CFM_EVT:
433 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1);
434 if (p_data->hdr.err_code == 0)
435 {
436 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len);
437 }
438 break;
439 case AVDT_SUSPEND_IND_EVT:
440 p_msg->msg.hdr.err_code = 0;
441 break;
442
443 default:
444 break;
445 }
446 }
447 else
448 p_msg->msg.hdr.err_code = 0;
449
450 /* look up application event */
451 if ((p_data == NULL) || (p_data->hdr.err_code == 0))
452 {
453 p_msg->hdr.event = bta_av_stream_evt_ok[event];
454 }
455 else
456 {
457 p_msg->hdr.event = bta_av_stream_evt_fail[event];
458 }
459
460 p_msg->initiator = FALSE;
461 if (event == AVDT_SUSPEND_CFM_EVT)
462 p_msg->initiator = TRUE;
463
464 APPL_TRACE_EVENT1("hndl:x%x", p_scb->hndl);
465 p_msg->hdr.layer_specific = p_scb->hndl;
466 p_msg->handle = handle;
467 p_msg->avdt_event = event;
468 bta_sys_sendmsg(p_msg);
469 }
470
471 /* coverity[var_deref_model]: Variable "p_data" tracked as NULL was passed to function "bta_av_conn_cback" that dereferences it.
472 * false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event
473 * these 2 events always have associated p_data
474 */
475 bta_av_conn_cback(handle, bd_addr, event, p_data);
476 }
477
478 /*******************************************************************************
479 **
480 ** Function bta_av_stream0_cback
481 **
482 ** Description This is the AVDTP callback function for stream events.
483 **
484 ** Returns void
485 **
486 *******************************************************************************/
bta_av_stream0_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)487 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
488 {
489 APPL_TRACE_EVENT2("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event);
490 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0);
491 }
492
493 /*******************************************************************************
494 **
495 ** Function bta_av_stream1_cback
496 **
497 ** Description This is the AVDTP callback function for stream events.
498 **
499 ** Returns void
500 **
501 *******************************************************************************/
bta_av_stream1_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)502 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
503 {
504 APPL_TRACE_EVENT2("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event);
505 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1);
506 }
507
508 #if BTA_AV_NUM_STRS > 2
509 /*******************************************************************************
510 **
511 ** Function bta_av_stream2_cback
512 **
513 ** Description This is the AVDTP callback function for stream events.
514 **
515 ** Returns void
516 **
517 *******************************************************************************/
bta_av_stream2_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)518 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
519 {
520 APPL_TRACE_EVENT2("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event);
521 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2);
522 }
523 #endif
524
525 #if BTA_AV_NUM_STRS > 3
526 /*******************************************************************************
527 **
528 ** Function bta_av_stream3_cback
529 **
530 ** Description This is the AVDTP callback function for stream events.
531 **
532 ** Returns void
533 **
534 *******************************************************************************/
bta_av_stream3_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)535 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
536 {
537 APPL_TRACE_EVENT2("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event);
538 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3);
539 }
540 #endif
541
542 /*******************************************************************************
543 **
544 ** Function bta_av_stream4_cback
545 **
546 ** Description This is the AVDTP callback function for stream events.
547 **
548 ** Returns void
549 **
550 *******************************************************************************/
551 #if BTA_AV_NUM_STRS > 4
bta_av_stream4_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)552 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
553 {
554 APPL_TRACE_EVENT2("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event);
555 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4);
556 }
557 #endif
558
559 /*******************************************************************************
560 **
561 ** Function bta_av_stream5_cback
562 **
563 ** Description This is the AVDTP callback function for stream events.
564 **
565 ** Returns void
566 **
567 *******************************************************************************/
568 #if BTA_AV_NUM_STRS > 5
bta_av_stream5_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)569 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
570 {
571 APPL_TRACE_EVENT2("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event);
572 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5);
573 }
574 #endif
575
576 /*******************************************************************************
577 **
578 ** Function bta_av_a2d_sdp_cback
579 **
580 ** Description A2DP service discovery callback.
581 **
582 ** Returns void
583 **
584 *******************************************************************************/
bta_av_a2d_sdp_cback(BOOLEAN found,tA2D_Service * p_service)585 static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service)
586 {
587 tBTA_AV_SDP_RES *p_msg;
588 tBTA_AV_SCB *p_scb;
589
590 if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL)
591 {
592 p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT;
593
594 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
595 if (p_scb)
596 {
597 if (found && (p_service != NULL))
598 p_scb->avdt_version = p_service->avdt_version;
599 else
600 p_scb->avdt_version = 0x00;
601
602 p_msg->hdr.layer_specific = bta_av_cb.handle;
603 bta_sys_sendmsg(p_msg);
604 }
605 else
606 {
607 APPL_TRACE_ERROR1 ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle);
608 }
609 }
610 }
611
612 /*******************************************************************************
613 **
614 ** Function bta_av_adjust_seps_idx
615 **
616 ** Description adjust the sep_idx
617 **
618 ** Returns
619 **
620 *******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb)621 static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb)
622 {
623 int xx;
624
625 APPL_TRACE_DEBUG1("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type);
626 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
627 {
628 APPL_TRACE_DEBUG2("av_handle: %d codec_type: %d",
629 p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type);
630 if(p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type)
631 {
632 p_scb->sep_idx = xx;
633 p_scb->avdt_handle = p_scb->seps[xx].av_handle;
634 break;
635 }
636 }
637 }
638
639 /*******************************************************************************
640 **
641 ** Function bta_av_switch_role
642 **
643 ** Description Switch role was not started and a timer was started.
644 ** another attempt to switch role now - still opening.
645 **
646 ** Returns void
647 **
648 *******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)649 void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
650 {
651 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
652 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open;
653
654 APPL_TRACE_DEBUG1("bta_av_switch_role wait:x%x", p_scb->wait);
655 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
656 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
657
658 /* clear the masks set when the timer is started */
659 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START);
660
661 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
662 {
663 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
664 {
665 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
666 }
667 else
668 {
669 /* this should not happen in theory. Just in case...
670 * continue to do_disc_a2d */
671 switch_res = BTA_AV_RS_DONE;
672 }
673 }
674 else
675 {
676 /* report failure on OPEN */
677 switch_res = BTA_AV_RS_FAIL;
678 }
679
680 if (switch_res != BTA_AV_RS_NONE)
681 {
682 if (bta_av_cb.rs_idx == (p_scb->hdi + 1))
683 {
684 bta_av_cb.rs_idx = 0;
685 }
686 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
687 p_scb->q_tag = 0;
688 p_buf->switch_res = switch_res;
689 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf);
690 }
691 }
692
693 /*******************************************************************************
694 **
695 ** Function bta_av_role_res
696 **
697 ** Description Handle the role changed event
698 **
699 **
700 ** Returns void
701 **
702 *******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)703 void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
704 {
705 BOOLEAN initiator = FALSE;
706 tBTA_AV_START start;
707 tBTA_AV_OPEN av_open;
708
709 APPL_TRACE_DEBUG3("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role);
710 if (p_scb->role & BTA_AV_ROLE_START_INT)
711 initiator = TRUE;
712
713 if (p_scb->q_tag == BTA_AV_Q_TAG_START)
714 {
715 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED)
716 {
717 p_scb->role &= ~BTA_AV_ROLE_START_INT;
718 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
719 if (p_data->role_res.hci_status != HCI_SUCCESS)
720 {
721 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
722 /* start failed because of role switch. */
723 start.chnl = p_scb->chnl;
724 start.status = BTA_AV_FAIL_ROLE;
725 start.hndl = p_scb->hndl;
726 start.initiator = initiator;
727 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
728 }
729 else
730 {
731 bta_av_start_ok(p_scb, p_data);
732 }
733 }
734 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
735 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
736 }
737 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
738 {
739 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN)
740 {
741 p_scb->role &= ~BTA_AV_ROLE_START_INT;
742 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
743
744 if (p_data->role_res.hci_status != HCI_SUCCESS)
745 {
746 /* Open failed because of role switch. */
747 bdcpy(av_open.bd_addr, p_scb->peer_addr);
748 av_open.chnl = p_scb->chnl;
749 av_open.hndl = p_scb->hndl;
750 start.status = BTA_AV_FAIL_ROLE;
751 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open);
752 }
753 else
754 {
755 /* Continue av open process */
756 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
757 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
758 }
759 }
760 else
761 {
762 APPL_TRACE_WARNING2 ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait);
763 }
764 }
765
766 APPL_TRACE_DEBUG2("wait:x%x, role:x%x", p_scb->wait, p_scb->role);
767 }
768
769 /*******************************************************************************
770 **
771 ** Function bta_av_delay_co
772 **
773 ** Description Call the delay call-out function to report the delay report
774 ** from SNK
775 **
776 ** Returns void
777 **
778 *******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)779 void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
780 {
781 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay);
782 }
783
784 /*******************************************************************************
785 **
786 ** Function bta_av_do_disc_a2d
787 **
788 ** Description Do service discovery for A2DP.
789 **
790 ** Returns void
791 **
792 *******************************************************************************/
bta_av_do_disc_a2d(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)793 void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
794 {
795 BOOLEAN ok_continue = FALSE;
796 tA2D_SDP_DB_PARAMS db_params;
797 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
798 ATTR_ID_PROTOCOL_DESC_LIST,
799 ATTR_ID_BT_PROFILE_DESC_LIST};
800
801 APPL_TRACE_DEBUG3("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d",
802 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt);
803
804 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
805
806 switch(p_data->api_open.switch_res)
807 {
808 case BTA_AV_RS_NONE:
809 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
810 {
811 /* waiting for role switch result. save the api to control block */
812 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN));
813 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
814 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
815 }
816 else
817 {
818 ok_continue = TRUE;
819 }
820 break;
821
822 case BTA_AV_RS_FAIL:
823 /* report a new failure event */
824 p_scb->open_status = BTA_AV_FAIL_ROLE;
825 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
826 break;
827
828 case BTA_AV_RS_OK:
829 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open;
830 /* continue to open if link role is ok */
831 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
832 {
833 ok_continue = TRUE;
834 }
835 else
836 {
837 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
838 }
839 break;
840
841 case BTA_AV_RS_DONE:
842 ok_continue = TRUE;
843 break;
844 }
845
846 APPL_TRACE_DEBUG3("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag);
847 if (!ok_continue)
848 return;
849
850 /* clear the role switch bits */
851 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
852
853 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC)
854 {
855 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
856 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
857 }
858
859 if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
860 {
861 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
862
863 if (bta_av_cb.audio_open_cnt == 1)
864 {
865 /* there's already an A2DP connection. do not allow switch */
866 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
867 }
868 }
869 /* store peer addr other parameters */
870 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
871 p_scb->sec_mask = p_data->api_open.sec_mask;
872 p_scb->use_rc = p_data->api_open.use_rc;
873
874 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
875
876 /* allocate discovery database */
877 if (p_scb->p_disc_db == NULL)
878 {
879 p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE);
880 }
881
882 /* only one A2D find service is active at a time */
883 bta_av_cb.handle = p_scb->hndl;
884
885 if(p_scb->p_disc_db)
886 {
887 /* set up parameters */
888 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
889 db_params.num_attr = 3;
890 db_params.p_db = p_scb->p_disc_db;
891 db_params.p_attrs = attr_list;
892
893 if(A2D_FindService(UUID_SERVCLASS_AUDIO_SINK, p_scb->peer_addr, &db_params,
894 bta_av_a2d_sdp_cback) == A2D_SUCCESS)
895 {
896 return;
897 }
898 }
899
900 /* when the code reaches here, either the DB is NULL
901 * or A2D_FindService is not successful */
902 bta_av_a2d_sdp_cback(FALSE, NULL);
903 }
904
905 /*******************************************************************************
906 **
907 ** Function bta_av_cleanup
908 **
909 ** Description cleanup AV stream control block.
910 **
911 ** Returns void
912 **
913 *******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)914 void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
915 {
916 tBTA_AV_CONN_CHG msg;
917 int xx;
918 UINT8 role = BTA_AV_ROLE_AD_INT;
919
920 APPL_TRACE_DEBUG0("bta_av_cleanup");
921
922 /* free any buffers */
923 utl_freebuf((void **) &p_scb->p_cap);
924 utl_freebuf((void **) &p_scb->p_disc_db);
925 p_scb->avdt_version = 0;
926
927 /* initialize some control block variables */
928 p_scb->open_status = BTA_AV_SUCCESS;
929
930 /* if de-registering shut everything down */
931 msg.hdr.layer_specific = p_scb->hndl;
932 p_scb->started = FALSE;
933 p_scb->cong = FALSE;
934 p_scb->role = role;
935 p_scb->cur_psc_mask = 0;
936 p_scb->wait = 0;
937 p_scb->num_disc_snks = 0;
938 bta_sys_stop_timer(&p_scb->timer);
939 if (p_scb->deregistring)
940 {
941 /* remove stream */
942 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
943 {
944 if(p_scb->seps[xx].av_handle)
945 AVDT_RemoveStream(p_scb->seps[xx].av_handle);
946 p_scb->seps[xx].av_handle = 0;
947 }
948
949 bta_av_dereg_comp((tBTA_AV_DATA *) &msg);
950 }
951 else
952 {
953 /* report stream closed to main SM */
954 msg.is_up = FALSE;
955 bdcpy(msg.peer_addr, p_scb->peer_addr);
956 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
957 }
958 }
959
960 /*******************************************************************************
961 **
962 ** Function bta_av_free_sdb
963 **
964 ** Description Free service discovery db buffer.
965 **
966 ** Returns void
967 **
968 *******************************************************************************/
bta_av_free_sdb(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)969 void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
970 {
971 utl_freebuf((void **) &p_scb->p_disc_db);
972 }
973
974 /*******************************************************************************
975 **
976 ** Function bta_av_config_ind
977 **
978 ** Description Handle a stream configuration indication from the peer.
979 **
980 ** Returns void
981 **
982 *******************************************************************************/
bta_av_config_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)983 void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
984 {
985 tBTA_AV_CI_SETCONFIG setconfig;
986 tAVDT_SEP_INFO *p_info;
987 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg;
988 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
989
990 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
991 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
992 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX];
993 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
994
995 /* Clear collision mask */
996 p_scb->coll_mask = 0;
997 bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr);
998
999 /* if no codec parameters in configuration, fail */
1000 if ((p_evt_cfg->num_codec == 0) ||
1001 /* or the peer requests for a service we do not support */
1002 ((psc_mask != p_scb->cfg.psc_mask) &&
1003 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) )
1004 {
1005 setconfig.hndl = p_scb->hndl; /* we may not need this */
1006 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
1007 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig);
1008 }
1009 else
1010 {
1011 p_info = &p_scb->sep_info[0];
1012 p_info->in_use = 0;
1013 p_info->media_type = p_scb->media_type;
1014 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
1015 p_info->tsep = AVDT_TSEP_SNK;
1016 p_scb->role |= BTA_AV_ROLE_AD_ACP;
1017 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
1018 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
1019 p_scb->use_rc = TRUE;
1020 else
1021 p_scb->use_rc = FALSE;
1022
1023 p_scb->num_seps = 1;
1024 p_scb->sep_info_idx = 0;
1025 APPL_TRACE_DEBUG3("bta_av_config_ind: SEID: %d use_rc: %d cur_psc_mask:0x%x", p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
1026
1027 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1028 p_evt_cfg->codec_info,
1029 p_info->seid,
1030 p_scb->peer_addr,
1031 p_evt_cfg->num_protect,
1032 p_evt_cfg->protect_info);
1033 }
1034 }
1035
1036 /*******************************************************************************
1037 **
1038 ** Function bta_av_disconnect_req
1039 **
1040 ** Description Disconnect AVDTP connection.
1041 **
1042 ** Returns void
1043 **
1044 *******************************************************************************/
bta_av_disconnect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1045 void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1046 {
1047 tBTA_AV_RCB *p_rcb;
1048 APPL_TRACE_DEBUG1("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb);
1049
1050 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1051 bta_sys_stop_timer(&p_scb->timer);
1052 if(bta_av_cb.conn_lcb)
1053 {
1054 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1));
1055 if (p_rcb)
1056 bta_av_del_rc(p_rcb);
1057 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1058 }
1059 else
1060 {
1061 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1062 }
1063 }
1064
1065 /*******************************************************************************
1066 **
1067 ** Function bta_av_security_req
1068 **
1069 ** Description Send an AVDTP security request.
1070 **
1071 ** Returns void
1072 **
1073 *******************************************************************************/
bta_av_security_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1074 void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1075 {
1076 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1077 {
1078 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1079 p_data->api_protect_req.len);
1080 }
1081 }
1082
1083 /*******************************************************************************
1084 **
1085 ** Function bta_av_security_rsp
1086 **
1087 ** Description Send an AVDTP security response.
1088 **
1089 ** Returns void
1090 **
1091 *******************************************************************************/
bta_av_security_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1092 void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1093 {
1094 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1095 {
1096 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code,
1097 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len);
1098 }
1099 else
1100 {
1101 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC,
1102 NULL, 0);
1103 }
1104 }
1105
1106 /*******************************************************************************
1107 **
1108 ** Function bta_av_setconfig_rsp
1109 **
1110 ** Description setconfig is OK
1111 **
1112 ** Returns void
1113 **
1114 *******************************************************************************/
bta_av_setconfig_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1115 void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1116 {
1117 UINT8 num = p_data->ci_setconfig.num_seid + 1;
1118 UINT8 *p_seid = p_data->ci_setconfig.p_seid;
1119 int i;
1120
1121 /* we like this codec_type. find the sep_idx */
1122 bta_av_adjust_seps_idx(p_scb);
1123 APPL_TRACE_DEBUG2("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask);
1124 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code,
1125 p_data->ci_setconfig.category);
1126
1127 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1128
1129 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS)
1130 {
1131 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1132 if(p_data->ci_setconfig.recfg_needed)
1133 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1134 APPL_TRACE_ERROR3("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d",
1135 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1136 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1137 * getcap on these SEID */
1138 p_scb->num_seps = num;
1139
1140 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1141 p_scb->avdt_version = AVDT_VERSION_SYNC;
1142
1143
1144 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1)
1145 {
1146 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind.
1147 * call disc_res now */
1148 p_scb->p_cos->disc_res(p_scb->hndl, num, num, p_scb->peer_addr);
1149 }
1150 else
1151 {
1152 /* we do not know the peer device and it is using non-SBC codec
1153 * we need to know all the SEPs on SNK */
1154 bta_av_discover_req(p_scb, NULL);
1155 return;
1156 }
1157
1158 for (i = 1; i < num; i++)
1159 {
1160 APPL_TRACE_DEBUG2("sep_info[%d] SEID: %d", i, p_seid[i-1]);
1161 /* initialize the sep_info[] to get capabilities */
1162 p_scb->sep_info[i].in_use = FALSE;
1163 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1164 p_scb->sep_info[i].media_type = p_scb->media_type;
1165 p_scb->sep_info[i].seid = p_seid[i-1];
1166 }
1167 bta_av_next_getcap(p_scb, p_data);
1168 }
1169 }
1170
1171 /*******************************************************************************
1172 **
1173 ** Function bta_av_str_opened
1174 **
1175 ** Description Stream opened OK (incoming/outgoing).
1176 **
1177 ** Returns void
1178 **
1179 *******************************************************************************/
bta_av_str_opened(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1180 void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1181 {
1182 tBTA_AV_CONN_CHG msg;
1183 tBTA_AV_OPEN open;
1184 UINT8 *p;
1185 UINT16 mtu;
1186
1187 msg.hdr.layer_specific = p_scb->hndl;
1188 msg.is_up = TRUE;
1189 bdcpy(msg.peer_addr, p_scb->peer_addr);
1190 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1191 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1192 /* set the congestion flag, so AV would not send media packets by accident */
1193 p_scb->cong = TRUE;
1194
1195
1196 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1197 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
1198 APPL_TRACE_DEBUG3("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d",
1199 p_scb->l2c_cid, p_scb->stream_mtu, mtu);
1200 if(mtu == 0 || mtu > p_scb->stream_mtu)
1201 mtu = p_scb->stream_mtu;
1202
1203 /* Set the media channel as medium priority */
1204 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM);
1205 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE);
1206
1207 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1208 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1209
1210 p_scb->l2c_bufs = 0;
1211 p_scb->p_cos->open(p_scb->hndl,
1212 p_scb->codec_type, p_scb->cfg.codec_info, mtu);
1213
1214 {
1215 /* TODO check if other audio channel is open.
1216 * If yes, check if reconfig is needed
1217 * Rigt now we do not do this kind of checking.
1218 * BTA-AV is INT for 2nd audio connection.
1219 * The application needs to make sure the current codec_info is proper.
1220 * If one audio connection is open and another SNK attempts to connect to AV,
1221 * the connection will be rejected.
1222 */
1223 /* check if other audio channel is started. If yes, start */
1224 bdcpy(open.bd_addr, p_scb->peer_addr);
1225 open.chnl = p_scb->chnl;
1226 open.hndl = p_scb->hndl;
1227 open.status = BTA_AV_SUCCESS;
1228 open.starting = bta_av_chk_start(p_scb);
1229 open.edr = 0;
1230 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr)))
1231 {
1232 if(HCI_EDR_ACL_2MPS_SUPPORTED(p))
1233 open.edr |= BTA_AV_EDR_2MBPS;
1234 if(HCI_EDR_ACL_3MPS_SUPPORTED(p))
1235 open.edr |= BTA_AV_EDR_3MBPS;
1236 }
1237 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
1238 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr);
1239 #endif
1240 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1241 if(open.starting)
1242 {
1243 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1244 }
1245 }
1246 }
1247
1248 /*******************************************************************************
1249 **
1250 ** Function bta_av_security_ind
1251 **
1252 ** Description Handle an AVDTP security indication.
1253 **
1254 ** Returns void
1255 **
1256 *******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1257 void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1258 {
1259 tBTA_AV_PROTECT_REQ protect_req;
1260
1261 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1262
1263 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1264 {
1265 protect_req.chnl = p_scb->chnl;
1266 protect_req.hndl = p_scb->hndl;
1267 /*
1268 APPL_TRACE_EVENT1("sec ind handle: x%x", protect_req.hndl);
1269 */
1270 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1271 protect_req.len = p_data->str_msg.msg.security_ind.len;
1272
1273 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req);
1274 }
1275 /* app doesn't support security indication; respond with failure */
1276 else
1277 {
1278 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0);
1279 }
1280 }
1281
1282 /*******************************************************************************
1283 **
1284 ** Function bta_av_security_cfm
1285 **
1286 ** Description Handle an AVDTP security confirm.
1287 **
1288 ** Returns void
1289 **
1290 *******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1291 void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1292 {
1293 tBTA_AV_PROTECT_RSP protect_rsp;
1294
1295 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1296 {
1297 protect_rsp.chnl = p_scb->chnl;
1298 protect_rsp.hndl = p_scb->hndl;
1299 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1300 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1301 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code;
1302
1303 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp);
1304 }
1305 }
1306
1307 /*******************************************************************************
1308 **
1309 ** Function bta_av_do_close
1310 **
1311 ** Description Close stream.
1312 **
1313 ** Returns void
1314 **
1315 *******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1316 void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1317 {
1318 /* stop stream if started */
1319 if (p_scb->co_started)
1320 {
1321 bta_av_str_stopped(p_scb, NULL);
1322 }
1323 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1324
1325 /* close stream */
1326 p_scb->started = FALSE;
1327
1328 /* drop the buffers queued in L2CAP */
1329 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1330
1331 AVDT_CloseReq(p_scb->avdt_handle);
1332 /* just in case that the link is congested, link is flow controled by peer or
1333 * for whatever reason the the close request can not be sent in time.
1334 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link
1335 */
1336 bta_sys_start_timer(&p_scb->timer,
1337 (UINT16)BTA_AV_API_CLOSE_EVT,
1338 BTA_AV_CLOSE_REQ_TIME_VAL);
1339
1340 }
1341
1342 /*******************************************************************************
1343 **
1344 ** Function bta_av_connect_req
1345 **
1346 ** Description Connect AVDTP connection.
1347 **
1348 ** Returns void
1349 **
1350 *******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1351 void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1352 {
1353 utl_freebuf((void **) &p_scb->p_disc_db);
1354
1355 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
1356 {
1357 /* SNK initiated L2C connection while SRC was doing SDP. */
1358 /* Wait until timeout to check if SNK starts signalling. */
1359 APPL_TRACE_EVENT1("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask);
1360 return;
1361 }
1362
1363 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
1364 }
1365
1366 /*******************************************************************************
1367 **
1368 ** Function bta_av_sdp_failed
1369 **
1370 ** Description Service discovery failed.
1371 **
1372 ** Returns void
1373 **
1374 *******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1375 void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1376 {
1377 if (!p_scb->open_status)
1378 p_scb->open_status = BTA_AV_FAIL_SDP;
1379
1380 utl_freebuf((void **) &p_scb->p_disc_db);
1381 bta_av_str_closed(p_scb, p_data);
1382 }
1383
1384 /*******************************************************************************
1385 **
1386 ** Function bta_av_disc_results
1387 **
1388 ** Description Handle the AVDTP discover results. Search through the
1389 ** results and find the first available stream, and get
1390 ** its capabilities.
1391 **
1392 ** Returns void
1393 **
1394 *******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1395 void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1396 {
1397 UINT8 num_snks = 0, i;
1398
1399 /* store number of stream endpoints returned */
1400 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1401
1402 for (i = 0; i < p_scb->num_seps; i++)
1403 {
1404 /* steam not in use, is a sink, and is audio */
1405 if ((p_scb->sep_info[i].in_use == FALSE) &&
1406 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1407 (p_scb->sep_info[i].media_type == p_scb->media_type))
1408 {
1409 num_snks++;
1410 }
1411 }
1412
1413 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr);
1414 p_scb->num_disc_snks = num_snks;
1415
1416 /* if we got any */
1417 if (p_scb->num_seps > 0)
1418 {
1419 /* initialize index into discovery results */
1420 p_scb->sep_info_idx = 0;
1421
1422 /* get the capabilities of the first available stream */
1423 bta_av_next_getcap(p_scb, p_data);
1424 }
1425 /* else we got discover response but with no streams; we're done */
1426 else
1427 {
1428 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1429 }
1430 }
1431
1432 /*******************************************************************************
1433 **
1434 ** Function bta_av_disc_res_as_acp
1435 **
1436 ** Description Handle the AVDTP discover results. Search through the
1437 ** results and find the first available stream, and get
1438 ** its capabilities.
1439 **
1440 ** Returns void
1441 **
1442 *******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1443 void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1444 {
1445 UINT8 num_snks = 0, i;
1446
1447 /* store number of stream endpoints returned */
1448 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1449
1450
1451
1452 for (i = 0; i < p_scb->num_seps; i++)
1453 {
1454 /* steam is a sink, and is audio */
1455 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1456 (p_scb->sep_info[i].media_type == p_scb->media_type))
1457 {
1458 p_scb->sep_info[i].in_use = FALSE;
1459 num_snks++;
1460 }
1461 }
1462
1463 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr);
1464 p_scb->num_disc_snks = num_snks;
1465
1466 /* if we got any */
1467 if (p_scb->num_seps > 0)
1468 {
1469 /* initialize index into discovery results */
1470 p_scb->sep_info_idx = 0;
1471
1472 /* get the capabilities of the first available stream */
1473 bta_av_next_getcap(p_scb, p_data);
1474 }
1475 /* else we got discover response but with no streams; we're done */
1476 else
1477 {
1478 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1479 }
1480 }
1481
1482 /*******************************************************************************
1483 **
1484 ** Function bta_av_save_caps
1485 **
1486 ** Description report the SNK SEP capabilities to application
1487 **
1488 ** Returns void
1489 **
1490 *******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1491 void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1492 {
1493 tAVDT_CFG cfg;
1494 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1495 UINT8 old_wait = p_scb->wait;
1496 BOOLEAN getcap_done = FALSE;
1497
1498 APPL_TRACE_DEBUG3("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
1499 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1500 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
1501 /* let application know the capability of the SNK */
1502 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
1503 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1504 &cfg.num_protect, cfg.protect_info);
1505
1506 p_scb->sep_info_idx++;
1507 if(p_scb->num_seps > p_scb->sep_info_idx)
1508 {
1509 /* Some devices have seps at the end of the discover list, which is not */
1510 /* matching media type(video not audio). */
1511 /* In this case, we are done with getcap without sending another */
1512 /* request to AVDT. */
1513 if (!bta_av_next_getcap(p_scb, p_data))
1514 getcap_done = TRUE;
1515 }
1516 else
1517 getcap_done = TRUE;
1518
1519 if (getcap_done)
1520 {
1521 /* we are done getting capabilities. restore the p_cb->sep_info_idx */
1522 p_scb->sep_info_idx = 0;
1523 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
1524 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
1525 {
1526 bta_av_start_ok (p_scb, NULL);
1527 }
1528 }
1529 }
1530
1531 /*******************************************************************************
1532 **
1533 ** Function bta_av_set_use_rc
1534 **
1535 ** Description set to use AVRC for this stream control block.
1536 **
1537 ** Returns void
1538 **
1539 *******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1540 void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1541 {
1542 p_scb->use_rc = TRUE;
1543 }
1544
1545 /*******************************************************************************
1546 **
1547 ** Function bta_av_cco_close
1548 **
1549 ** Description call close call-out function.
1550 **
1551 ** Returns void
1552 **
1553 *******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1554 void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1555 {
1556 UINT16 mtu;
1557 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
1558
1559 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
1560 }
1561
1562 /*******************************************************************************
1563 **
1564 ** Function bta_av_open_failed
1565 **
1566 ** Description Failed to open an AVDT stream
1567 **
1568 ** Returns void
1569 **
1570 *******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1571 void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1572 {
1573 p_scb->open_status = BTA_AV_FAIL_STREAM;
1574 bta_av_cco_close(p_scb, p_data);
1575 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1576 }
1577
1578 /*******************************************************************************
1579 **
1580 ** Function bta_av_getcap_results
1581 **
1582 ** Description Handle the AVDTP get capabilities results. Check the codec
1583 ** type and see if it matches ours. If it does not, get the
1584 ** capabilities of the next stream, if any.
1585 **
1586 ** Returns void
1587 **
1588 *******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1589 void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1590 {
1591 tAVDT_CFG cfg;
1592 UINT8 media_type;
1593 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1594
1595 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1596 cfg.num_codec = 1;
1597 cfg.num_protect = p_scb->p_cap->num_protect;
1598 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
1599 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
1600 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
1601
1602 APPL_TRACE_DEBUG1("num_codec %d", p_scb->p_cap->num_codec);
1603 APPL_TRACE_DEBUG2("media type x%x, x%x", media_type, p_scb->media_type);
1604 #if AVDT_MULTIPLEXING == TRUE
1605 APPL_TRACE_DEBUG2("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
1606 #endif
1607
1608 /* if codec present and we get a codec configuration */
1609 if ((p_scb->p_cap->num_codec != 0) &&
1610 (media_type == p_scb->media_type) &&
1611 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
1612 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1613 &cfg.num_protect, cfg.protect_info) == 0))
1614 {
1615 #if AVDT_MULTIPLEXING == TRUE
1616 cfg.mux_mask &= p_scb->p_cap->mux_mask;
1617 APPL_TRACE_DEBUG1("mux_mask used x%x", cfg.mux_mask);
1618 #endif
1619 /* save copy of codec type and configuration */
1620 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
1621 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
1622 bta_av_adjust_seps_idx(p_scb);
1623 /* use only the services peer supports */
1624 cfg.psc_mask &= p_scb->p_cap->psc_mask;
1625 p_scb->cur_psc_mask = cfg.psc_mask;
1626
1627 /* open the stream */
1628 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
1629 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1630
1631 if (!bta_av_is_rcfg_sst(p_scb))
1632 {
1633 /* free capabilities buffer */
1634 utl_freebuf((void **) &p_scb->p_cap);
1635 }
1636 }
1637 else
1638 {
1639 /* try the next stream, if any */
1640 p_scb->sep_info_idx++;
1641 bta_av_next_getcap(p_scb, p_data);
1642 }
1643
1644 }
1645
1646 /*******************************************************************************
1647 **
1648 ** Function bta_av_setconfig_rej
1649 **
1650 ** Description Send AVDTP set config reject.
1651 **
1652 ** Returns void
1653 **
1654 *******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1655 void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1656 {
1657 tBTA_AV_REJECT reject;
1658
1659 APPL_TRACE_DEBUG0("bta_av_setconfig_rej");
1660 AVDT_ConfigRsp(p_data->str_msg.handle, p_data->str_msg.msg.hdr.label, AVDT_ERR_BAD_STATE, 0);
1661 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
1662 reject.hndl = p_scb->hndl;
1663 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
1664 }
1665
1666 /*******************************************************************************
1667 **
1668 ** Function bta_av_discover_req
1669 **
1670 ** Description Send an AVDTP discover request to the peer.
1671 **
1672 ** Returns void
1673 **
1674 *******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1675 void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1676 {
1677 /* send avdtp discover request */
1678
1679 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
1680 }
1681
1682 /*******************************************************************************
1683 **
1684 ** Function bta_av_conn_failed
1685 **
1686 ** Description AVDTP connection failed.
1687 **
1688 ** Returns void
1689 **
1690 *******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1691 void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1692 {
1693 p_scb->open_status = BTA_AV_FAIL_STREAM;
1694 bta_av_str_closed(p_scb, p_data);
1695 }
1696
1697 /*******************************************************************************
1698 **
1699 ** Function bta_av_do_start
1700 **
1701 ** Description Start stream.
1702 **
1703 ** Returns void
1704 **
1705 *******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1706 void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1707 {
1708 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
1709 UINT8 cur_role;
1710
1711 APPL_TRACE_DEBUG3("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started);
1712 if (bta_av_cb.sco_occupied)
1713 {
1714 bta_av_start_failed(p_scb, p_data);
1715 return;
1716 }
1717
1718 /* disallow role switch during streaming, only if we are the master role
1719 * i.e. allow role switch, if we are slave.
1720 * It would not hurt us, if the peer device wants us to be master */
1721 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
1722 (cur_role == BTM_ROLE_MASTER) )
1723 {
1724 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1725 }
1726
1727 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
1728
1729 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
1730 {
1731 p_scb->role |= BTA_AV_ROLE_START_INT;
1732 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
1733
1734 AVDT_StartReq(&p_scb->avdt_handle, 1);
1735 }
1736 else
1737 {
1738 bta_av_start_ok(p_scb, NULL);
1739 }
1740 APPL_TRACE_DEBUG2("started %d role:x%x", p_scb->started, p_scb->role);
1741 }
1742
1743 /*******************************************************************************
1744 **
1745 ** Function bta_av_str_stopped
1746 **
1747 ** Description Stream stopped.
1748 **
1749 ** Returns void
1750 **
1751 *******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1752 void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1753 {
1754 tBTA_AV_SUSPEND suspend_rsp;
1755 UINT8 start = p_scb->started;
1756 BOOLEAN sus_evt = TRUE;
1757 BT_HDR *p_buf;
1758 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
1759
1760 APPL_TRACE_ERROR2("bta_av_str_stopped:audio_open_cnt=%d, p_data %x",
1761 bta_av_cb.audio_open_cnt, p_data);
1762
1763 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
1764 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
1765 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1766 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
1767
1768 if(p_scb->co_started)
1769 {
1770 bta_av_stream_chg(p_scb, FALSE);
1771 p_scb->co_started = FALSE;
1772
1773 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
1774 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
1775 }
1776
1777 /* if q_info.a2d is not empty, drop it now */
1778 if(BTA_AV_CHNL_AUDIO == p_scb->chnl)
1779 {
1780 while((p_buf = (BT_HDR*)GKI_dequeue (&p_scb->q_info.a2d)) != NULL)
1781 GKI_freebuf(p_buf);
1782
1783 /* drop the audio buffers queued in L2CAP */
1784 if(p_data && p_data->api_stop.flush)
1785 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1786 }
1787
1788 suspend_rsp.chnl = p_scb->chnl;
1789 suspend_rsp.hndl = p_scb->hndl;
1790
1791 if (p_data && p_data->api_stop.suspend)
1792 {
1793 APPL_TRACE_DEBUG2("suspending: %d, sup:%d", start, p_scb->suspend_sup);
1794 if ((start) && (p_scb->suspend_sup))
1795 {
1796 sus_evt = FALSE;
1797 p_scb->l2c_bufs = 0;
1798 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
1799 }
1800
1801 if(sus_evt)
1802 {
1803 suspend_rsp.status = BTA_AV_SUCCESS;
1804 suspend_rsp.initiator = TRUE;
1805 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
1806 }
1807 }
1808 else
1809 {
1810 suspend_rsp.status = BTA_AV_SUCCESS;
1811 suspend_rsp.initiator = TRUE;
1812 APPL_TRACE_EVENT1("bta_av_str_stopped status %d", suspend_rsp.status);
1813
1814 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
1815 }
1816 }
1817
1818 /*******************************************************************************
1819 **
1820 ** Function bta_av_reconfig
1821 **
1822 ** Description process the reconfigure request.
1823 ** save the parameter in control block and
1824 ** suspend, reconfigure or close the stream
1825 **
1826 ** Returns void
1827 **
1828 *******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1829 void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1830 {
1831 tAVDT_CFG *p_cfg;
1832 tBTA_AV_API_STOP stop;
1833 tBTA_AV_RECONFIG evt;
1834 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig;
1835
1836 APPL_TRACE_DEBUG4("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
1837 p_scb->recfg_sup, p_scb->suspend_sup,
1838 p_scb->rcfg_idx, p_scb->sep_info_idx);
1839
1840 p_scb->num_recfg = 0;
1841 /* store the new configuration in control block */
1842 if (p_scb->p_cap == NULL)
1843 {
1844 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG));
1845 }
1846 if((p_cfg = p_scb->p_cap) == NULL)
1847 {
1848 /* report failure */
1849 evt.status = BTA_AV_FAIL_RESOURCES;
1850 evt.chnl = p_scb->chnl;
1851 evt.hndl = p_scb->hndl;
1852 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
1853
1854 /* this event is not possible in this state.
1855 * use it to bring the SSM back to open state */
1856 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL);
1857 return;
1858 }
1859
1860 /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/
1861 bta_sys_stop_timer(&p_scb->timer);
1862
1863 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1864 p_cfg->num_protect = p_rcfg->num_protect;
1865 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
1866 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
1867 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
1868 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
1869
1870 /* if the requested index differs from the current one, we can only close/open */
1871 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
1872 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
1873 {
1874 if(p_scb->started)
1875 {
1876 stop.flush = FALSE;
1877 stop.suspend = TRUE;
1878 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
1879 }
1880 else
1881 {
1882 APPL_TRACE_DEBUG0("Reconfig");
1883 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
1884 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
1885 }
1886 }
1887 else
1888 {
1889 /* close the stream */
1890 APPL_TRACE_DEBUG1("close/open num_protect: %d", p_cfg->num_protect);
1891 if(p_scb->started)
1892 bta_av_str_stopped(p_scb, NULL);
1893 p_scb->started = FALSE;
1894
1895 /* drop the buffers queued in L2CAP */
1896 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1897
1898 AVDT_CloseReq(p_scb->avdt_handle);
1899
1900 }
1901 }
1902
1903 /*******************************************************************************
1904 **
1905 ** Function bta_av_data_path
1906 **
1907 ** Description Handle stream data path.
1908 **
1909 ** Returns void
1910 **
1911 *******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1912 void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1913 {
1914 BT_HDR *p_buf;
1915 UINT32 data_len;
1916 UINT32 timestamp;
1917 BOOLEAN new_buf = FALSE;
1918 UINT8 m_pt = 0x60 | p_scb->codec_type;
1919
1920 if (!p_scb->cong)
1921 {
1922 /*
1923 APPL_TRACE_ERROR1("q: %d", p_scb->l2c_bufs);
1924 */
1925 //Always get the current number of bufs que'd up
1926 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
1927
1928 p_buf = (BT_HDR *)GKI_dequeue (&p_scb->q_info.a2d);
1929 if(p_buf)
1930 {
1931 /* use q_info.a2d data, read the timestamp */
1932 timestamp = *(UINT32 *)(p_buf + 1);
1933 }
1934 else
1935 {
1936 new_buf = TRUE;
1937 /* q_info.a2d empty, call co_data, dup data to other channels */
1938 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
1939 ×tamp);
1940
1941 if (p_buf)
1942 {
1943 /* use the offset area for the time stamp */
1944 *(UINT32 *)(p_buf + 1) = timestamp;
1945
1946 /* dup the data to other channels */
1947 bta_av_dup_audio_buf(p_scb, p_buf);
1948 }
1949 }
1950
1951 if(p_buf)
1952 {
1953 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
1954 {
1955 /* there's a buffer, just queue it to L2CAP */
1956 /* There's no need to increment it here, it is always read from L2CAP see above */
1957 /* p_scb->l2c_bufs++; */
1958 /*
1959 APPL_TRACE_ERROR1("qw: %d", p_scb->l2c_bufs);
1960 */
1961 AVDT_WriteReq(p_scb->avdt_handle, p_buf, timestamp, m_pt);
1962 p_scb->cong = TRUE;
1963 }
1964 else
1965 {
1966 /* there's a buffer, but L2CAP does not seem to be moving data */
1967 if(new_buf)
1968 {
1969 /* just got this buffer from co_data,
1970 * put it in queue */
1971 GKI_enqueue(&p_scb->q_info.a2d, p_buf);
1972 }
1973 else
1974 {
1975 /* just dequeue it from the q_info.a2d */
1976 if(p_scb->q_info.a2d.count < 3)
1977 {
1978 /* put it back to the queue */
1979 GKI_enqueue_head (&p_scb->q_info.a2d, p_buf);
1980 }
1981 else
1982 {
1983 /* too many buffers in q_info.a2d, drop it. */
1984 bta_av_co_audio_drop(p_scb->hndl);
1985 GKI_freebuf(p_buf);
1986 }
1987 }
1988 }
1989 }
1990 }
1991 }
1992
1993 /*******************************************************************************
1994 **
1995 ** Function bta_av_start_ok
1996 **
1997 ** Description Stream started.
1998 **
1999 ** Returns void
2000 **
2001 *******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2002 void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2003 {
2004 tBTA_AV_START start;
2005 tBTA_AV_API_STOP stop;
2006 BOOLEAN initiator = FALSE;
2007 BOOLEAN suspend = FALSE;
2008 UINT16 flush_to;
2009 UINT8 new_role = p_scb->role;
2010 BT_HDR hdr;
2011
2012 APPL_TRACE_DEBUG2("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
2013
2014 p_scb->started = TRUE;
2015 if (p_scb->sco_suspend)
2016 {
2017 p_scb->sco_suspend = FALSE;
2018 }
2019
2020 if (new_role & BTA_AV_ROLE_START_INT)
2021 initiator = TRUE;
2022
2023 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
2024 {
2025 /* role switch has failed */
2026 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2027 p_data = (tBTA_AV_DATA *)&hdr;
2028 hdr.offset = BTA_AV_RS_FAIL;
2029 }
2030 APPL_TRACE_DEBUG1("wait:x%x", p_scb->wait);
2031
2032 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
2033 {
2034 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2035 if (p_data->hdr.offset == BTA_AV_RS_FAIL)
2036 {
2037 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2038 start.chnl = p_scb->chnl;
2039 start.status = BTA_AV_FAIL_ROLE;
2040 start.hndl = p_scb->hndl;
2041 start.initiator = initiator;
2042 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2043 return;
2044 }
2045 }
2046
2047 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2048 p_scb->q_tag = BTA_AV_Q_TAG_START;
2049 else
2050 {
2051 /* The wait flag may be set here while we are already master on the link */
2052 /* this could happen if a role switch complete event occurred during reconfig */
2053 /* if we are now master on the link, there is no need to wait for the role switch, */
2054 /* complete anymore so we can clear the wait for role switch flag */
2055 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2056 }
2057
2058 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
2059 {
2060 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2061 p_scb->q_tag = BTA_AV_Q_TAG_START;
2062 }
2063
2064 if (p_scb->wait & BTA_AV_WAIT_ACP_CAPS_ON)
2065 {
2066 p_scb->wait |= BTA_AV_WAIT_ACP_CAPS_STARTED;
2067 }
2068
2069 if (p_scb->wait)
2070 {
2071 APPL_TRACE_DEBUG2("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
2072 return;
2073 }
2074
2075 /* tell role manager to check M/S role */
2076 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2077
2078 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2079
2080 if(p_scb->media_type == AVDT_MEDIA_AUDIO)
2081 {
2082 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2083 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
2084 * If the code were to be re-arranged for some reasons, this number may need to be changed
2085 */
2086 p_scb->co_started = bta_av_cb.audio_open_cnt;
2087 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2088 }
2089 else
2090 {
2091 flush_to = p_bta_av_cfg->video_flush_to;
2092 }
2093 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
2094
2095 /* clear the congestion flag */
2096 p_scb->cong = FALSE;
2097
2098 if (new_role & BTA_AV_ROLE_START_INT)
2099 {
2100 new_role &= ~BTA_AV_ROLE_START_INT;
2101 }
2102 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
2103 {
2104 suspend = TRUE;
2105 }
2106
2107 if (!suspend)
2108 {
2109 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2110 bta_av_stream_chg(p_scb, TRUE);
2111 }
2112
2113 {
2114 p_scb->role = new_role;
2115 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2116 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2117
2118 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type);
2119 p_scb->co_started = TRUE;
2120
2121 APPL_TRACE_DEBUG3("bta_av_start_ok suspending: %d, role:x%x, init %d",
2122 suspend, p_scb->role, initiator);
2123
2124 start.suspending = suspend;
2125 start.initiator = initiator;
2126 start.chnl = p_scb->chnl;
2127 start.status = BTA_AV_SUCCESS;
2128 start.hndl = p_scb->hndl;
2129 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2130
2131 if(suspend)
2132 {
2133 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2134 p_scb->cong = TRUE; /* do not allow the media data to go through */
2135 /* do not duplicate the media packets to this channel */
2136 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2137 p_scb->co_started = FALSE;
2138 stop.flush = FALSE;
2139 stop.suspend = TRUE;
2140 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
2141 }
2142 }
2143 }
2144
2145 /*******************************************************************************
2146 **
2147 ** Function bta_av_start_failed
2148 **
2149 ** Description Stream start failed.
2150 **
2151 ** Returns void
2152 **
2153 *******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2154 void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2155 {
2156 tBTA_AV_START start;
2157
2158 if(p_scb->started == FALSE && p_scb->co_started == FALSE)
2159 {
2160 /* if start failed, clear role */
2161 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2162
2163 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2164 start.chnl = p_scb->chnl;
2165 start.status = BTA_AV_FAIL;
2166 start.initiator = TRUE;
2167 start.hndl = p_scb->hndl;
2168 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2169 }
2170
2171 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
2172 p_scb->sco_suspend = FALSE;
2173 }
2174
2175 /*******************************************************************************
2176 **
2177 ** Function bta_av_str_closed
2178 **
2179 ** Description Stream closed.
2180 **
2181 ** Returns void
2182 **
2183 *******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2184 void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2185 {
2186 tBTA_AV data;
2187 tBTA_AV_EVT event;
2188 UINT16 mtu;
2189 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2190
2191 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2192 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2193 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2194 if (bta_av_cb.audio_open_cnt <= 1)
2195 {
2196 /* last connection - restore the allow switch flag */
2197 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2198 }
2199
2200 if (p_scb->open_status)
2201 {
2202 /* must be failure when opening the stream */
2203 bdcpy(data.open.bd_addr, p_scb->peer_addr);
2204 data.open.status = p_scb->open_status;
2205 data.open.chnl = p_scb->chnl;
2206 data.open.hndl = p_scb->hndl;
2207 event = BTA_AV_OPEN_EVT;
2208 p_scb->open_status = BTA_AV_SUCCESS;
2209
2210 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2211 bta_av_cleanup(p_scb, p_data);
2212 (*bta_av_cb.p_cback)(event, &data);
2213 }
2214 else
2215 {
2216 /* do stop if we were started */
2217 if (p_scb->co_started)
2218 {
2219 bta_av_str_stopped(p_scb, NULL);
2220 }
2221
2222 /* Update common mtu shared by remaining connectons */
2223 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
2224
2225 {
2226 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
2227 data.close.chnl = p_scb->chnl;
2228 data.close.hndl = p_scb->hndl;
2229 event = BTA_AV_CLOSE_EVT;
2230
2231 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2232 bta_av_cleanup(p_scb, p_data);
2233 (*bta_av_cb.p_cback)(event, &data);
2234 }
2235 }
2236 }
2237
2238 /*******************************************************************************
2239 **
2240 ** Function bta_av_clr_cong
2241 **
2242 ** Description Clear stream congestion flag.
2243 **
2244 ** Returns void
2245 **
2246 *******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2247 void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2248 {
2249 if(p_scb->co_started)
2250 p_scb->cong = FALSE;
2251 }
2252
2253 /*******************************************************************************
2254 **
2255 ** Function bta_av_suspend_cfm
2256 **
2257 ** Description process the suspend response
2258 **
2259 ** Returns void
2260 **
2261 *******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2262 void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2263 {
2264 tBTA_AV_SUSPEND suspend_rsp;
2265 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2266 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2267
2268 APPL_TRACE_DEBUG2 ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
2269 bta_av_cb.audio_open_cnt, err_code);
2270
2271 suspend_rsp.status = BTA_AV_SUCCESS;
2272 if(err_code)
2273 {
2274 p_scb->suspend_sup = FALSE;
2275 suspend_rsp.status = BTA_AV_FAIL;
2276
2277 APPL_TRACE_ERROR0 ("bta_av_suspend_cfm: suspend failed, closing connection");
2278
2279 /* SUSPEND failed. Close connection. */
2280 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2281 }
2282 else
2283 {
2284 /* only set started to FALSE when suspend is successful */
2285 p_scb->started = FALSE;
2286 }
2287
2288 if(p_scb->role & BTA_AV_ROLE_SUSPEND)
2289 {
2290 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2291 p_scb->cong = FALSE;
2292 }
2293
2294 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2295 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2296 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2297 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2298
2299 /* in case that we received suspend_ind, we may need to call co_stop here */
2300 if(p_scb->co_started)
2301 {
2302 bta_av_stream_chg(p_scb, FALSE);
2303
2304 {
2305 p_scb->co_started = FALSE;
2306 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2307 }
2308 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2309 }
2310
2311 {
2312 suspend_rsp.chnl = p_scb->chnl;
2313 suspend_rsp.hndl = p_scb->hndl;
2314 suspend_rsp.initiator = p_data->str_msg.initiator;
2315 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2316 }
2317 }
2318
2319 /*******************************************************************************
2320 **
2321 ** Function bta_av_rcfg_str_ok
2322 **
2323 ** Description report reconfigure successful
2324 **
2325 ** Returns void
2326 **
2327 *******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2328 void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2329 {
2330 tBTA_AV_RECONFIG evt;
2331
2332 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2333 APPL_TRACE_DEBUG1("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
2334
2335 /* rc listen */
2336 bta_av_st_rc_timer(p_scb, NULL);
2337 utl_freebuf((void **)&p_scb->p_cap);
2338
2339 /* No need to keep the role bits once reconfig is done. */
2340 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2341 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2342 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2343
2344 {
2345 /* reconfigure success */
2346 evt.status = BTA_AV_SUCCESS;
2347 evt.chnl = p_scb->chnl;
2348 evt.hndl = p_scb->hndl;
2349 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2350 }
2351 }
2352
2353 /*******************************************************************************
2354 **
2355 ** Function bta_av_rcfg_failed
2356 **
2357 ** Description process reconfigure failed
2358 **
2359 ** Returns void
2360 **
2361 *******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2362 void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2363 {
2364 tBTA_AV_RECONFIG evt;
2365
2366 APPL_TRACE_DEBUG2("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
2367 p_scb->num_recfg, bta_av_cb.conn_lcb);
2368 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2369 {
2370 bta_av_cco_close(p_scb, p_data);
2371 /* report failure */
2372 evt.status = BTA_AV_FAIL_STREAM;
2373 evt.chnl = p_scb->chnl;
2374 evt.hndl = p_scb->hndl;
2375 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2376 /* go to closing state */
2377 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2378 }
2379 else
2380 {
2381 /* open failed. try again */
2382 p_scb->num_recfg++;
2383 if(bta_av_cb.conn_lcb)
2384 {
2385 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
2386 }
2387 else
2388 {
2389 bta_av_connect_req(p_scb, NULL);
2390 }
2391 }
2392 }
2393
2394 /*******************************************************************************
2395 **
2396 ** Function bta_av_rcfg_connect
2397 **
2398 ** Description stream closed. reconnect the stream
2399 **
2400 ** Returns void
2401 **
2402 *******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2403 void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2404 {
2405 p_scb->cong = FALSE;
2406 p_scb->num_recfg++;
2407 APPL_TRACE_DEBUG1("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
2408 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2409 {
2410 /* let bta_av_rcfg_failed report fail */
2411 bta_av_rcfg_failed(p_scb, NULL);
2412 }
2413 else
2414 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2415 }
2416
2417 /*******************************************************************************
2418 **
2419 ** Function bta_av_rcfg_discntd
2420 **
2421 ** Description AVDT disconnected. reconnect the stream
2422 **
2423 ** Returns void
2424 **
2425 *******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2426 void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2427 {
2428 tBTA_AV_RECONFIG evt;
2429
2430 APPL_TRACE_DEBUG1("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
2431 p_scb->num_recfg++;
2432 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2433 {
2434 /* report failure */
2435 evt.status = BTA_AV_FAIL_STREAM;
2436 evt.chnl = p_scb->chnl;
2437 evt.hndl = p_scb->hndl;
2438 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2439 /* report close event & go to init state */
2440 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2441 }
2442 else
2443 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2444 }
2445
2446 /*******************************************************************************
2447 **
2448 ** Function bta_av_suspend_cont
2449 **
2450 ** Description received the suspend response.
2451 ** continue to reconfigure the stream
2452 **
2453 ** Returns void
2454 **
2455 *******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2456 void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2457 {
2458 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2459 tBTA_AV_RECONFIG evt;
2460
2461 p_scb->started = FALSE;
2462 p_scb->cong = FALSE;
2463 if(err_code)
2464 {
2465 if(AVDT_ERR_CONNECT == err_code)
2466 {
2467 /* report failure */
2468 evt.status = BTA_AV_FAIL;
2469 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2470 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2471 }
2472 else
2473 {
2474 APPL_TRACE_ERROR0("suspend rejected, try close");
2475 p_scb->suspend_sup = FALSE;
2476
2477 /* drop the buffers queued in L2CAP */
2478 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2479
2480 AVDT_CloseReq(p_scb->avdt_handle);
2481 }
2482 }
2483 else
2484 {
2485 APPL_TRACE_DEBUG0("bta_av_suspend_cont calling AVDT_ReconfigReq");
2486 /* reconfig the stream */
2487
2488 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2489 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2490 }
2491 }
2492
2493 /*******************************************************************************
2494 **
2495 ** Function bta_av_rcfg_cfm
2496 **
2497 ** Description if reconfigure is successful, report the event
2498 ** otherwise, close the stream.
2499 **
2500 ** Returns void
2501 **
2502 *******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2503 void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2504 {
2505 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2506
2507 /*
2508 APPL_TRACE_DEBUG0("bta_av_rcfg_cfm");
2509 */
2510 if(err_code)
2511 {
2512 APPL_TRACE_ERROR0("reconfig rejected, try close");
2513 p_scb->recfg_sup = FALSE;
2514 /* started flag is FALSE when reconfigure command is sent */
2515 /* drop the buffers queued in L2CAP */
2516 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2517 AVDT_CloseReq(p_scb->avdt_handle);
2518 }
2519 else
2520 {
2521 /* take the SSM back to OPEN state */
2522 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2523 }
2524 }
2525
2526 /*******************************************************************************
2527 **
2528 ** Function bta_av_rcfg_open
2529 **
2530 ** Description AVDT is connected. open the stream with the new configuration
2531 **
2532 ** Returns void
2533 **
2534 *******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2535 void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2536 {
2537 APPL_TRACE_DEBUG1("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
2538
2539 if (p_scb->num_disc_snks == 0)
2540 {
2541 /* Need to update call-out module so that it will be ready for discover */
2542 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2543
2544 /* send avdtp discover request */
2545 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
2546 }
2547 else
2548 {
2549 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
2550 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
2551 /* we may choose to use a different SEP at reconfig.
2552 * adjust the sep_idx now */
2553 bta_av_adjust_seps_idx(p_scb);
2554
2555 /* open the stream with the new config */
2556 p_scb->sep_info_idx = p_scb->rcfg_idx;
2557 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
2558 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
2559 }
2560
2561 }
2562
2563 /*******************************************************************************
2564 **
2565 ** Function bta_av_security_rej
2566 **
2567 ** Description Send an AVDTP security reject.
2568 **
2569 ** Returns void
2570 **
2571 *******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2572 void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2573 {
2574 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2575 NULL, 0);
2576 }
2577
2578 /*******************************************************************************
2579 **
2580 ** Function bta_av_chk_2nd_start
2581 **
2582 ** Description check if this is 2nd stream and if it needs to be started.
2583 ** This function needs to be kept very similar to bta_av_chk_start
2584 **
2585 ** Returns void
2586 **
2587 *******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2588 void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2589 {
2590 tBTA_AV_SCB *p_scbi;
2591 int i;
2592 BOOLEAN new_started = FALSE;
2593
2594
2595 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
2596 {
2597 /* more than one audio channel is connected */
2598 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
2599 {
2600 /* this channel does not need to be reconfigured.
2601 * if there is other channel streaming, start the stream now */
2602 for(i=0; i<BTA_AV_NUM_STRS; i++)
2603 {
2604 p_scbi = bta_av_cb.p_scb[i];
2605 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
2606 {
2607 if (!new_started)
2608 {
2609 /* start the new stream */
2610 new_started = TRUE;
2611 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2612 }
2613 /* may need to update the flush timeout of this already started stream */
2614 if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
2615 {
2616 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2617 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
2618 }
2619 }
2620 }
2621 }
2622 }
2623 }
2624
2625 /*******************************************************************************
2626 **
2627 ** Function bta_av_open_rc
2628 **
2629 ** Description Send a message to main SM to open RC channel.
2630 **
2631 ** Returns void
2632 **
2633 *******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2634 void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2635 {
2636 tBTA_AV_START start;
2637
2638 APPL_TRACE_DEBUG3("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role);
2639 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
2640 {
2641 /* waiting for role switch for some reason & the timer expires */
2642 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2643 {
2644 APPL_TRACE_ERROR0 ("failed to start streaming for role management reasons!!");
2645 bta_sys_stop_timer(&p_scb->timer);
2646 start.chnl = p_scb->chnl;
2647 start.status = BTA_AV_FAIL_ROLE;
2648 start.initiator = TRUE;
2649 start.hndl = p_scb->hndl;
2650 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2651 bta_av_cb.rs_idx = 0;
2652 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2653 }
2654 else
2655 {
2656 /* role switch is done. continue to start streaming */
2657 bta_av_cb.rs_idx = 0;
2658 p_data->hdr.offset = BTA_AV_RS_OK;
2659 bta_av_start_ok (p_scb, p_data);
2660 }
2661 return;
2662 }
2663
2664 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
2665 {
2666 if(bta_av_cb.disc)
2667 {
2668 /* AVRC discover db is in use */
2669 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
2670 {
2671 /* AVRC channel is not connected. delay a little bit */
2672 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0)
2673 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
2674 else
2675 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
2676 }
2677 }
2678 else
2679 {
2680 /* use main SM for AVRC SDP activities */
2681 bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
2682 }
2683 }
2684 else
2685 {
2686 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
2687 {
2688 /* the open API said that this handle does not want a RC connection.
2689 * disconnect it now */
2690 AVRC_Close(p_scb->rc_handle);
2691 }
2692 }
2693 }
2694
2695 /*******************************************************************************
2696 **
2697 ** Function bta_av_open_at_inc
2698 **
2699 ** Description This function is called if API open is called by application
2700 ** while state-machine is at incoming state.
2701 **
2702 ** Returns void
2703 **
2704 *******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2705 void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2706 {
2707 tBTA_AV_API_OPEN *p_buf;
2708
2709 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
2710
2711 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
2712 {
2713 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
2714
2715 /* API open will be handled at timeout if SNK did not start signalling. */
2716 /* API open will be ignored if SNK starts signalling. */
2717 }
2718 else
2719 {
2720 /* SNK did not start signalling, API was called N seconds timeout. */
2721 /* We need to switch to INIT state and start opening connection. */
2722 p_scb->coll_mask = 0;
2723 bta_av_set_scb_sst_init (p_scb);
2724
2725 if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL)
2726 {
2727 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
2728 bta_sys_sendmsg(p_buf);
2729 }
2730 }
2731 }
2732
2733 #endif /* BTA_AV_INCLUDED */
2734