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_RECONFIG_CFM_EVT:
398 APPL_TRACE_DEBUG4("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x",
399 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[0]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[1]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[2],
400 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[3]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[4]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[5],
401 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[6]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[7]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[8],
402 p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]);
403 break;
404
405
406
407 case AVDT_CONFIG_IND_EVT:
408 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP.
409 * If we already have a signalling connection with the bd_addr and the streaming
410 * SST is at INIT state, change it to INCOMING state to handle the signalling
411 * from the 2nd SEP. */
412 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb)))
413 {
414 bta_av_set_scb_sst_incoming (p_scb);
415
416 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state.
417 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to
418 * incoming which we do it above.
419 * We also have to set the old p_scb state to init to be used later */
420 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++)
421 {
422 if ((bta_av_cb.p_scb[xx]) && (xx != index))
423 {
424 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST)
425 {
426 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST;
427 bta_av_cb.p_scb[xx]->coll_mask = 0;
428 break;
429 }
430 }
431 }
432 }
433
434 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG));
435 break;
436
437 case AVDT_SECURITY_IND_EVT:
438 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1);
439 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len);
440 break;
441
442 case AVDT_SECURITY_CFM_EVT:
443 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1);
444 if (p_data->hdr.err_code == 0)
445 {
446 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len);
447 }
448 break;
449 case AVDT_SUSPEND_IND_EVT:
450 p_msg->msg.hdr.err_code = 0;
451 break;
452
453 default:
454 break;
455 }
456 }
457 else
458 p_msg->msg.hdr.err_code = 0;
459
460 /* look up application event */
461 if ((p_data == NULL) || (p_data->hdr.err_code == 0))
462 {
463 p_msg->hdr.event = bta_av_stream_evt_ok[event];
464 }
465 else
466 {
467 p_msg->hdr.event = bta_av_stream_evt_fail[event];
468 }
469
470 p_msg->initiator = FALSE;
471 if (event == AVDT_SUSPEND_CFM_EVT)
472 p_msg->initiator = TRUE;
473
474 APPL_TRACE_VERBOSE1("hndl:x%x", p_scb->hndl);
475 p_msg->hdr.layer_specific = p_scb->hndl;
476 p_msg->handle = handle;
477 p_msg->avdt_event = event;
478 bta_sys_sendmsg(p_msg);
479 }
480
481 /* coverity[var_deref_model] */
482 /* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event
483 * these 2 events always have associated p_data */
484 bta_av_conn_cback(handle, bd_addr, event, p_data);
485 }
486
487 /*******************************************************************************
488 **
489 ** Function bta_av_stream0_cback
490 **
491 ** Description This is the AVDTP callback function for stream events.
492 **
493 ** Returns void
494 **
495 *******************************************************************************/
bta_av_stream0_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)496 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
497 {
498 APPL_TRACE_VERBOSE2("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event);
499 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0);
500 }
501
502 /*******************************************************************************
503 **
504 ** Function bta_av_stream1_cback
505 **
506 ** Description This is the AVDTP callback function for stream events.
507 **
508 ** Returns void
509 **
510 *******************************************************************************/
bta_av_stream1_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)511 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
512 {
513 APPL_TRACE_EVENT2("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event);
514 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1);
515 }
516
517 #if BTA_AV_NUM_STRS > 2
518 /*******************************************************************************
519 **
520 ** Function bta_av_stream2_cback
521 **
522 ** Description This is the AVDTP callback function for stream events.
523 **
524 ** Returns void
525 **
526 *******************************************************************************/
bta_av_stream2_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)527 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
528 {
529 APPL_TRACE_EVENT2("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event);
530 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2);
531 }
532 #endif
533
534 #if BTA_AV_NUM_STRS > 3
535 /*******************************************************************************
536 **
537 ** Function bta_av_stream3_cback
538 **
539 ** Description This is the AVDTP callback function for stream events.
540 **
541 ** Returns void
542 **
543 *******************************************************************************/
bta_av_stream3_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)544 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
545 {
546 APPL_TRACE_EVENT2("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event);
547 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3);
548 }
549 #endif
550
551 /*******************************************************************************
552 **
553 ** Function bta_av_stream4_cback
554 **
555 ** Description This is the AVDTP callback function for stream events.
556 **
557 ** Returns void
558 **
559 *******************************************************************************/
560 #if BTA_AV_NUM_STRS > 4
bta_av_stream4_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)561 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
562 {
563 APPL_TRACE_EVENT2("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event);
564 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4);
565 }
566 #endif
567
568 /*******************************************************************************
569 **
570 ** Function bta_av_stream5_cback
571 **
572 ** Description This is the AVDTP callback function for stream events.
573 **
574 ** Returns void
575 **
576 *******************************************************************************/
577 #if BTA_AV_NUM_STRS > 5
bta_av_stream5_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)578 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
579 {
580 APPL_TRACE_EVENT2("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event);
581 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5);
582 }
583 #endif
584
585 /*******************************************************************************
586 **
587 ** Function bta_av_a2d_sdp_cback
588 **
589 ** Description A2DP service discovery callback.
590 **
591 ** Returns void
592 **
593 *******************************************************************************/
bta_av_a2d_sdp_cback(BOOLEAN found,tA2D_Service * p_service)594 static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service)
595 {
596 tBTA_AV_SDP_RES *p_msg;
597 tBTA_AV_SCB *p_scb;
598
599 if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL)
600 {
601 p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT;
602
603 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
604 if (p_scb)
605 {
606 if (found && (p_service != NULL))
607 p_scb->avdt_version = p_service->avdt_version;
608 else
609 p_scb->avdt_version = 0x00;
610
611 p_msg->hdr.layer_specific = bta_av_cb.handle;
612 bta_sys_sendmsg(p_msg);
613 }
614 else
615 {
616 APPL_TRACE_ERROR1 ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle);
617 }
618 }
619 }
620
621 /*******************************************************************************
622 **
623 ** Function bta_av_adjust_seps_idx
624 **
625 ** Description adjust the sep_idx
626 **
627 ** Returns
628 **
629 *******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb)630 static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb)
631 {
632 int xx;
633
634 APPL_TRACE_DEBUG1("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type);
635 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
636 {
637 APPL_TRACE_DEBUG2("av_handle: %d codec_type: %d",
638 p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type);
639 if(p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type)
640 {
641 p_scb->sep_idx = xx;
642 p_scb->avdt_handle = p_scb->seps[xx].av_handle;
643 break;
644 }
645 }
646 }
647
648 /*******************************************************************************
649 **
650 ** Function bta_av_switch_role
651 **
652 ** Description Switch role was not started and a timer was started.
653 ** another attempt to switch role now - still opening.
654 **
655 ** Returns void
656 **
657 *******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)658 void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
659 {
660 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
661 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open;
662
663 APPL_TRACE_DEBUG1("bta_av_switch_role wait:x%x", p_scb->wait);
664 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
665 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
666
667 /* clear the masks set when the timer is started */
668 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START);
669
670 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
671 {
672 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
673 {
674 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
675 }
676 else
677 {
678 /* this should not happen in theory. Just in case...
679 * continue to do_disc_a2d */
680 switch_res = BTA_AV_RS_DONE;
681 }
682 }
683 else
684 {
685 /* report failure on OPEN */
686 switch_res = BTA_AV_RS_FAIL;
687 }
688
689 if (switch_res != BTA_AV_RS_NONE)
690 {
691 if (bta_av_cb.rs_idx == (p_scb->hdi + 1))
692 {
693 bta_av_cb.rs_idx = 0;
694 }
695 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
696 p_scb->q_tag = 0;
697 p_buf->switch_res = switch_res;
698 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf);
699 }
700 }
701
702 /*******************************************************************************
703 **
704 ** Function bta_av_role_res
705 **
706 ** Description Handle the role changed event
707 **
708 **
709 ** Returns void
710 **
711 *******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)712 void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
713 {
714 BOOLEAN initiator = FALSE;
715 tBTA_AV_START start;
716 tBTA_AV_OPEN av_open;
717
718 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);
719 if (p_scb->role & BTA_AV_ROLE_START_INT)
720 initiator = TRUE;
721
722 if (p_scb->q_tag == BTA_AV_Q_TAG_START)
723 {
724 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED)
725 {
726 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
727 if (p_data->role_res.hci_status != HCI_SUCCESS)
728 {
729 p_scb->role &= ~BTA_AV_ROLE_START_INT;
730 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
731 /* start failed because of role switch. */
732 start.chnl = p_scb->chnl;
733 start.status = BTA_AV_FAIL_ROLE;
734 start.hndl = p_scb->hndl;
735 start.initiator = initiator;
736 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
737 }
738 else
739 {
740 bta_av_start_ok(p_scb, p_data);
741 }
742 }
743 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
744 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
745 }
746 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
747 {
748 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN)
749 {
750 p_scb->role &= ~BTA_AV_ROLE_START_INT;
751 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
752
753 if (p_data->role_res.hci_status != HCI_SUCCESS)
754 {
755 /* Open failed because of role switch. */
756 bdcpy(av_open.bd_addr, p_scb->peer_addr);
757 av_open.chnl = p_scb->chnl;
758 av_open.hndl = p_scb->hndl;
759 start.status = BTA_AV_FAIL_ROLE;
760 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open);
761 }
762 else
763 {
764 /* Continue av open process */
765 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
766 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
767 }
768 }
769 else
770 {
771 APPL_TRACE_WARNING2 ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait);
772 }
773 }
774
775 APPL_TRACE_DEBUG2("wait:x%x, role:x%x", p_scb->wait, p_scb->role);
776 }
777
778 /*******************************************************************************
779 **
780 ** Function bta_av_delay_co
781 **
782 ** Description Call the delay call-out function to report the delay report
783 ** from SNK
784 **
785 ** Returns void
786 **
787 *******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)788 void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
789 {
790 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay);
791 }
792
793 /*******************************************************************************
794 **
795 ** Function bta_av_do_disc_a2d
796 **
797 ** Description Do service discovery for A2DP.
798 **
799 ** Returns void
800 **
801 *******************************************************************************/
bta_av_do_disc_a2d(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)802 void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
803 {
804 BOOLEAN ok_continue = FALSE;
805 tA2D_SDP_DB_PARAMS db_params;
806 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
807 ATTR_ID_PROTOCOL_DESC_LIST,
808 ATTR_ID_BT_PROFILE_DESC_LIST};
809
810 APPL_TRACE_DEBUG3("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d",
811 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt);
812
813 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
814
815 switch(p_data->api_open.switch_res)
816 {
817 case BTA_AV_RS_NONE:
818 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
819 {
820 /* waiting for role switch result. save the api to control block */
821 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN));
822 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
823 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
824 }
825 else
826 {
827 ok_continue = TRUE;
828 }
829 break;
830
831 case BTA_AV_RS_FAIL:
832 /* report a new failure event */
833 p_scb->open_status = BTA_AV_FAIL_ROLE;
834 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
835 break;
836
837 case BTA_AV_RS_OK:
838 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open;
839 /* continue to open if link role is ok */
840 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
841 {
842 ok_continue = TRUE;
843 }
844 else
845 {
846 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
847 }
848 break;
849
850 case BTA_AV_RS_DONE:
851 ok_continue = TRUE;
852 break;
853 }
854
855 APPL_TRACE_DEBUG3("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag);
856 if (!ok_continue)
857 return;
858
859 /* clear the role switch bits */
860 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
861
862 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC)
863 {
864 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
865 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
866 }
867
868 if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
869 {
870 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
871
872 if (bta_av_cb.audio_open_cnt == 1)
873 {
874 /* there's already an A2DP connection. do not allow switch */
875 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
876 }
877 }
878 /* store peer addr other parameters */
879 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
880 p_scb->sec_mask = p_data->api_open.sec_mask;
881 p_scb->use_rc = p_data->api_open.use_rc;
882
883 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
884
885 /* allocate discovery database */
886 if (p_scb->p_disc_db == NULL)
887 {
888 p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE);
889 }
890
891 /* only one A2D find service is active at a time */
892 bta_av_cb.handle = p_scb->hndl;
893
894 if(p_scb->p_disc_db)
895 {
896 /* set up parameters */
897 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
898 db_params.num_attr = 3;
899 db_params.p_db = p_scb->p_disc_db;
900 db_params.p_attrs = attr_list;
901
902 if(A2D_FindService(UUID_SERVCLASS_AUDIO_SINK, p_scb->peer_addr, &db_params,
903 bta_av_a2d_sdp_cback) == A2D_SUCCESS)
904 {
905 return;
906 }
907 }
908
909 /* when the code reaches here, either the DB is NULL
910 * or A2D_FindService is not successful */
911 bta_av_a2d_sdp_cback(FALSE, NULL);
912 }
913
914 /*******************************************************************************
915 **
916 ** Function bta_av_cleanup
917 **
918 ** Description cleanup AV stream control block.
919 **
920 ** Returns void
921 **
922 *******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)923 void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
924 {
925 tBTA_AV_CONN_CHG msg;
926 int xx;
927 UINT8 role = BTA_AV_ROLE_AD_INT;
928
929 APPL_TRACE_DEBUG0("bta_av_cleanup");
930
931 /* free any buffers */
932 utl_freebuf((void **) &p_scb->p_cap);
933 utl_freebuf((void **) &p_scb->p_disc_db);
934 p_scb->avdt_version = 0;
935
936 /* initialize some control block variables */
937 p_scb->open_status = BTA_AV_SUCCESS;
938
939 /* if de-registering shut everything down */
940 msg.hdr.layer_specific = p_scb->hndl;
941 p_scb->started = FALSE;
942 p_scb->cong = FALSE;
943 p_scb->role = role;
944 p_scb->cur_psc_mask = 0;
945 p_scb->wait = 0;
946 p_scb->num_disc_snks = 0;
947 bta_sys_stop_timer(&p_scb->timer);
948 if (p_scb->deregistring)
949 {
950 /* remove stream */
951 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
952 {
953 if(p_scb->seps[xx].av_handle)
954 AVDT_RemoveStream(p_scb->seps[xx].av_handle);
955 p_scb->seps[xx].av_handle = 0;
956 }
957
958 bta_av_dereg_comp((tBTA_AV_DATA *) &msg);
959 }
960 else
961 {
962 /* report stream closed to main SM */
963 msg.is_up = FALSE;
964 bdcpy(msg.peer_addr, p_scb->peer_addr);
965 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
966 }
967 }
968
969 /*******************************************************************************
970 **
971 ** Function bta_av_free_sdb
972 **
973 ** Description Free service discovery db buffer.
974 **
975 ** Returns void
976 **
977 *******************************************************************************/
bta_av_free_sdb(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)978 void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
979 {
980 utl_freebuf((void **) &p_scb->p_disc_db);
981 }
982
983 /*******************************************************************************
984 **
985 ** Function bta_av_config_ind
986 **
987 ** Description Handle a stream configuration indication from the peer.
988 **
989 ** Returns void
990 **
991 *******************************************************************************/
bta_av_config_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)992 void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
993 {
994 tBTA_AV_CI_SETCONFIG setconfig;
995 tAVDT_SEP_INFO *p_info;
996 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg;
997 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
998
999 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1000 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
1001 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX];
1002 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
1003
1004 /* Clear collision mask */
1005 p_scb->coll_mask = 0;
1006 bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr);
1007
1008 /* if no codec parameters in configuration, fail */
1009 if ((p_evt_cfg->num_codec == 0) ||
1010 /* or the peer requests for a service we do not support */
1011 ((psc_mask != p_scb->cfg.psc_mask) &&
1012 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) )
1013 {
1014 setconfig.hndl = p_scb->hndl; /* we may not need this */
1015 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
1016 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig);
1017 }
1018 else
1019 {
1020 p_info = &p_scb->sep_info[0];
1021 p_info->in_use = 0;
1022 p_info->media_type = p_scb->media_type;
1023 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
1024 p_info->tsep = AVDT_TSEP_SNK;
1025 p_scb->role |= BTA_AV_ROLE_AD_ACP;
1026 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
1027 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
1028 p_scb->use_rc = TRUE;
1029 else
1030 p_scb->use_rc = FALSE;
1031
1032 p_scb->num_seps = 1;
1033 p_scb->sep_info_idx = 0;
1034 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);
1035
1036 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1037 p_evt_cfg->codec_info,
1038 p_info->seid,
1039 p_scb->peer_addr,
1040 p_evt_cfg->num_protect,
1041 p_evt_cfg->protect_info);
1042 }
1043 }
1044
1045 /*******************************************************************************
1046 **
1047 ** Function bta_av_disconnect_req
1048 **
1049 ** Description Disconnect AVDTP connection.
1050 **
1051 ** Returns void
1052 **
1053 *******************************************************************************/
bta_av_disconnect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1054 void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1055 {
1056 tBTA_AV_RCB *p_rcb;
1057 APPL_TRACE_DEBUG1("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb);
1058
1059 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1060 bta_sys_stop_timer(&p_scb->timer);
1061 if(bta_av_cb.conn_lcb)
1062 {
1063 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1));
1064 if (p_rcb)
1065 bta_av_del_rc(p_rcb);
1066 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1067 }
1068 else
1069 {
1070 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1071 }
1072 }
1073
1074 /*******************************************************************************
1075 **
1076 ** Function bta_av_security_req
1077 **
1078 ** Description Send an AVDTP security request.
1079 **
1080 ** Returns void
1081 **
1082 *******************************************************************************/
bta_av_security_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1083 void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1084 {
1085 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1086 {
1087 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1088 p_data->api_protect_req.len);
1089 }
1090 }
1091
1092 /*******************************************************************************
1093 **
1094 ** Function bta_av_security_rsp
1095 **
1096 ** Description Send an AVDTP security response.
1097 **
1098 ** Returns void
1099 **
1100 *******************************************************************************/
bta_av_security_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1101 void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1102 {
1103 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1104 {
1105 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code,
1106 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len);
1107 }
1108 else
1109 {
1110 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC,
1111 NULL, 0);
1112 }
1113 }
1114
1115 /*******************************************************************************
1116 **
1117 ** Function bta_av_setconfig_rsp
1118 **
1119 ** Description setconfig is OK
1120 **
1121 ** Returns void
1122 **
1123 *******************************************************************************/
bta_av_setconfig_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1124 void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1125 {
1126 UINT8 num = p_data->ci_setconfig.num_seid + 1;
1127 UINT8 *p_seid = p_data->ci_setconfig.p_seid;
1128 int i;
1129
1130 /* we like this codec_type. find the sep_idx */
1131 bta_av_adjust_seps_idx(p_scb);
1132 APPL_TRACE_DEBUG2("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask);
1133 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code,
1134 p_data->ci_setconfig.category);
1135
1136 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1137
1138 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS)
1139 {
1140 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1141 if(p_data->ci_setconfig.recfg_needed)
1142 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1143 APPL_TRACE_ERROR3("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d",
1144 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1145 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1146 * getcap on these SEID */
1147 p_scb->num_seps = num;
1148
1149 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1150 p_scb->avdt_version = AVDT_VERSION_SYNC;
1151
1152
1153 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1)
1154 {
1155 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind.
1156 * call disc_res now */
1157 p_scb->p_cos->disc_res(p_scb->hndl, num, num, p_scb->peer_addr);
1158 }
1159 else
1160 {
1161 /* we do not know the peer device and it is using non-SBC codec
1162 * we need to know all the SEPs on SNK */
1163 bta_av_discover_req(p_scb, NULL);
1164 return;
1165 }
1166
1167 for (i = 1; i < num; i++)
1168 {
1169 APPL_TRACE_DEBUG2("sep_info[%d] SEID: %d", i, p_seid[i-1]);
1170 /* initialize the sep_info[] to get capabilities */
1171 p_scb->sep_info[i].in_use = FALSE;
1172 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1173 p_scb->sep_info[i].media_type = p_scb->media_type;
1174 p_scb->sep_info[i].seid = p_seid[i-1];
1175 }
1176 bta_av_next_getcap(p_scb, p_data);
1177 }
1178 }
1179
1180 /*******************************************************************************
1181 **
1182 ** Function bta_av_str_opened
1183 **
1184 ** Description Stream opened OK (incoming/outgoing).
1185 **
1186 ** Returns void
1187 **
1188 *******************************************************************************/
bta_av_str_opened(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1189 void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1190 {
1191 tBTA_AV_CONN_CHG msg;
1192 tBTA_AV_OPEN open;
1193 UINT8 *p;
1194 UINT16 mtu;
1195
1196 msg.hdr.layer_specific = p_scb->hndl;
1197 msg.is_up = TRUE;
1198 bdcpy(msg.peer_addr, p_scb->peer_addr);
1199 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1200 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1201 /* set the congestion flag, so AV would not send media packets by accident */
1202 p_scb->cong = TRUE;
1203
1204
1205 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1206 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
1207 APPL_TRACE_DEBUG3("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d",
1208 p_scb->l2c_cid, p_scb->stream_mtu, mtu);
1209 if(mtu == 0 || mtu > p_scb->stream_mtu)
1210 mtu = p_scb->stream_mtu;
1211
1212 /* Set the media channel as medium priority */
1213 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM);
1214 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE);
1215
1216 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1217 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1218
1219 p_scb->l2c_bufs = 0;
1220 p_scb->p_cos->open(p_scb->hndl,
1221 p_scb->codec_type, p_scb->cfg.codec_info, mtu);
1222
1223 {
1224 /* TODO check if other audio channel is open.
1225 * If yes, check if reconfig is needed
1226 * Rigt now we do not do this kind of checking.
1227 * BTA-AV is INT for 2nd audio connection.
1228 * The application needs to make sure the current codec_info is proper.
1229 * If one audio connection is open and another SNK attempts to connect to AV,
1230 * the connection will be rejected.
1231 */
1232 /* check if other audio channel is started. If yes, start */
1233 bdcpy(open.bd_addr, p_scb->peer_addr);
1234 open.chnl = p_scb->chnl;
1235 open.hndl = p_scb->hndl;
1236 open.status = BTA_AV_SUCCESS;
1237 open.starting = bta_av_chk_start(p_scb);
1238 open.edr = 0;
1239 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr)))
1240 {
1241 if(HCI_EDR_ACL_2MPS_SUPPORTED(p))
1242 open.edr |= BTA_AV_EDR_2MBPS;
1243 if(HCI_EDR_ACL_3MPS_SUPPORTED(p))
1244 open.edr |= BTA_AV_EDR_3MBPS;
1245 }
1246 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
1247 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr);
1248 #endif
1249 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1250 if(open.starting)
1251 {
1252 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1253 }
1254 }
1255 }
1256
1257 /*******************************************************************************
1258 **
1259 ** Function bta_av_security_ind
1260 **
1261 ** Description Handle an AVDTP security indication.
1262 **
1263 ** Returns void
1264 **
1265 *******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1266 void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1267 {
1268 tBTA_AV_PROTECT_REQ protect_req;
1269
1270 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1271
1272 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1273 {
1274 protect_req.chnl = p_scb->chnl;
1275 protect_req.hndl = p_scb->hndl;
1276 /*
1277 APPL_TRACE_EVENT1("sec ind handle: x%x", protect_req.hndl);
1278 */
1279 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1280 protect_req.len = p_data->str_msg.msg.security_ind.len;
1281
1282 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req);
1283 }
1284 /* app doesn't support security indication; respond with failure */
1285 else
1286 {
1287 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0);
1288 }
1289 }
1290
1291 /*******************************************************************************
1292 **
1293 ** Function bta_av_security_cfm
1294 **
1295 ** Description Handle an AVDTP security confirm.
1296 **
1297 ** Returns void
1298 **
1299 *******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1300 void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1301 {
1302 tBTA_AV_PROTECT_RSP protect_rsp;
1303
1304 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1305 {
1306 protect_rsp.chnl = p_scb->chnl;
1307 protect_rsp.hndl = p_scb->hndl;
1308 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1309 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1310 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code;
1311
1312 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp);
1313 }
1314 }
1315
1316 /*******************************************************************************
1317 **
1318 ** Function bta_av_do_close
1319 **
1320 ** Description Close stream.
1321 **
1322 ** Returns void
1323 **
1324 *******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1325 void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1326 {
1327 /* stop stream if started */
1328 if (p_scb->co_started)
1329 {
1330 bta_av_str_stopped(p_scb, NULL);
1331 }
1332 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1333
1334 /* close stream */
1335 p_scb->started = FALSE;
1336
1337 /* drop the buffers queued in L2CAP */
1338 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1339
1340 AVDT_CloseReq(p_scb->avdt_handle);
1341 /* just in case that the link is congested, link is flow controled by peer or
1342 * for whatever reason the the close request can not be sent in time.
1343 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link
1344 */
1345 bta_sys_start_timer(&p_scb->timer,
1346 (UINT16)BTA_AV_API_CLOSE_EVT,
1347 BTA_AV_CLOSE_REQ_TIME_VAL);
1348
1349 }
1350
1351 /*******************************************************************************
1352 **
1353 ** Function bta_av_connect_req
1354 **
1355 ** Description Connect AVDTP connection.
1356 **
1357 ** Returns void
1358 **
1359 *******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1360 void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1361 {
1362 utl_freebuf((void **) &p_scb->p_disc_db);
1363
1364 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
1365 {
1366 /* SNK initiated L2C connection while SRC was doing SDP. */
1367 /* Wait until timeout to check if SNK starts signalling. */
1368 APPL_TRACE_EVENT1("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask);
1369 return;
1370 }
1371
1372 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
1373 }
1374
1375 /*******************************************************************************
1376 **
1377 ** Function bta_av_sdp_failed
1378 **
1379 ** Description Service discovery failed.
1380 **
1381 ** Returns void
1382 **
1383 *******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1384 void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1385 {
1386 if (!p_scb->open_status)
1387 p_scb->open_status = BTA_AV_FAIL_SDP;
1388
1389 utl_freebuf((void **) &p_scb->p_disc_db);
1390 bta_av_str_closed(p_scb, p_data);
1391 }
1392
1393 /*******************************************************************************
1394 **
1395 ** Function bta_av_disc_results
1396 **
1397 ** Description Handle the AVDTP discover results. Search through the
1398 ** results and find the first available stream, and get
1399 ** its capabilities.
1400 **
1401 ** Returns void
1402 **
1403 *******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1404 void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1405 {
1406 UINT8 num_snks = 0, i;
1407
1408 /* store number of stream endpoints returned */
1409 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1410
1411 for (i = 0; i < p_scb->num_seps; i++)
1412 {
1413 /* steam not in use, is a sink, and is audio */
1414 if ((p_scb->sep_info[i].in_use == FALSE) &&
1415 (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1416 (p_scb->sep_info[i].media_type == p_scb->media_type))
1417 {
1418 num_snks++;
1419 }
1420 }
1421
1422 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr);
1423 p_scb->num_disc_snks = num_snks;
1424
1425 /* if we got any */
1426 if (p_scb->num_seps > 0)
1427 {
1428 /* initialize index into discovery results */
1429 p_scb->sep_info_idx = 0;
1430
1431 /* get the capabilities of the first available stream */
1432 bta_av_next_getcap(p_scb, p_data);
1433 }
1434 /* else we got discover response but with no streams; we're done */
1435 else
1436 {
1437 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1438 }
1439 }
1440
1441 /*******************************************************************************
1442 **
1443 ** Function bta_av_disc_res_as_acp
1444 **
1445 ** Description Handle the AVDTP discover results. Search through the
1446 ** results and find the first available stream, and get
1447 ** its capabilities.
1448 **
1449 ** Returns void
1450 **
1451 *******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1452 void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1453 {
1454 UINT8 num_snks = 0, i;
1455
1456 /* store number of stream endpoints returned */
1457 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1458
1459
1460
1461 for (i = 0; i < p_scb->num_seps; i++)
1462 {
1463 /* steam is a sink, and is audio */
1464 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1465 (p_scb->sep_info[i].media_type == p_scb->media_type))
1466 {
1467 p_scb->sep_info[i].in_use = FALSE;
1468 num_snks++;
1469 }
1470 }
1471
1472 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr);
1473 p_scb->num_disc_snks = num_snks;
1474
1475 /* if we got any */
1476 if (p_scb->num_seps > 0)
1477 {
1478 /* initialize index into discovery results */
1479 p_scb->sep_info_idx = 0;
1480
1481 /* get the capabilities of the first available stream */
1482 bta_av_next_getcap(p_scb, p_data);
1483 }
1484 /* else we got discover response but with no streams; we're done */
1485 else
1486 {
1487 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1488 }
1489 }
1490
1491 /*******************************************************************************
1492 **
1493 ** Function bta_av_save_caps
1494 **
1495 ** Description report the SNK SEP capabilities to application
1496 **
1497 ** Returns void
1498 **
1499 *******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1500 void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1501 {
1502 tAVDT_CFG cfg;
1503 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1504 UINT8 old_wait = p_scb->wait;
1505 BOOLEAN getcap_done = FALSE;
1506
1507 APPL_TRACE_DEBUG3("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
1508 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1509 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
1510 /* let application know the capability of the SNK */
1511 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
1512 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1513 &cfg.num_protect, cfg.protect_info);
1514
1515 p_scb->sep_info_idx++;
1516 if(p_scb->num_seps > p_scb->sep_info_idx)
1517 {
1518 /* Some devices have seps at the end of the discover list, which is not */
1519 /* matching media type(video not audio). */
1520 /* In this case, we are done with getcap without sending another */
1521 /* request to AVDT. */
1522 if (!bta_av_next_getcap(p_scb, p_data))
1523 getcap_done = TRUE;
1524 }
1525 else
1526 getcap_done = TRUE;
1527
1528 if (getcap_done)
1529 {
1530 /* we are done getting capabilities. restore the p_cb->sep_info_idx */
1531 p_scb->sep_info_idx = 0;
1532 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
1533 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
1534 {
1535 bta_av_start_ok (p_scb, NULL);
1536 }
1537 }
1538 }
1539
1540 /*******************************************************************************
1541 **
1542 ** Function bta_av_set_use_rc
1543 **
1544 ** Description set to use AVRC for this stream control block.
1545 **
1546 ** Returns void
1547 **
1548 *******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1549 void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1550 {
1551 p_scb->use_rc = TRUE;
1552 }
1553
1554 /*******************************************************************************
1555 **
1556 ** Function bta_av_cco_close
1557 **
1558 ** Description call close call-out function.
1559 **
1560 ** Returns void
1561 **
1562 *******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1563 void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1564 {
1565 UINT16 mtu;
1566 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
1567
1568 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
1569 }
1570
1571 /*******************************************************************************
1572 **
1573 ** Function bta_av_open_failed
1574 **
1575 ** Description Failed to open an AVDT stream
1576 **
1577 ** Returns void
1578 **
1579 *******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1580 void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1581 {
1582
1583 BOOLEAN is_av_opened = FALSE;
1584 tBTA_AV_SCB * p_opened_scb = NULL;
1585 UINT8 idx;
1586 tBTA_AV_OPEN open;
1587
1588 APPL_TRACE_DEBUG0("bta_av_open_failed");
1589 p_scb->open_status = BTA_AV_FAIL_STREAM;
1590 bta_av_cco_close(p_scb, p_data);
1591
1592 /* check whether there is already an opened audio or video connection with the same device */
1593 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ )
1594 {
1595 p_opened_scb = bta_av_cb.p_scb[idx];
1596 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) )
1597 is_av_opened = TRUE;
1598
1599 }
1600
1601 /* if there is already an active AV connnection with the same bd_addr,
1602 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */
1603 if (is_av_opened == TRUE)
1604 {
1605 bdcpy(open.bd_addr, p_scb->peer_addr);
1606 open.chnl = p_scb->chnl;
1607 open.hndl = p_scb->hndl;
1608 open.status = BTA_AV_FAIL_GET_CAP;
1609 open.starting = bta_av_chk_start(p_scb);
1610 open.edr = 0;
1611 /* set the state back to initial state */
1612 bta_av_set_scb_sst_init(p_scb);
1613
1614 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1615
1616 }
1617 else
1618 {
1619 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1620 }
1621 }
1622
1623
1624 /*******************************************************************************
1625 **
1626 ** Function bta_av_getcap_results
1627 **
1628 ** Description Handle the AVDTP get capabilities results. Check the codec
1629 ** type and see if it matches ours. If it does not, get the
1630 ** capabilities of the next stream, if any.
1631 **
1632 ** Returns void
1633 **
1634 *******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1635 void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1636 {
1637 tAVDT_CFG cfg;
1638 UINT8 media_type;
1639 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1640
1641 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1642 cfg.num_codec = 1;
1643 cfg.num_protect = p_scb->p_cap->num_protect;
1644 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
1645 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
1646 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
1647
1648 APPL_TRACE_DEBUG1("num_codec %d", p_scb->p_cap->num_codec);
1649 APPL_TRACE_DEBUG2("media type x%x, x%x", media_type, p_scb->media_type);
1650 #if AVDT_MULTIPLEXING == TRUE
1651 APPL_TRACE_DEBUG2("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
1652 #endif
1653
1654 /* if codec present and we get a codec configuration */
1655 if ((p_scb->p_cap->num_codec != 0) &&
1656 (media_type == p_scb->media_type) &&
1657 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
1658 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1659 &cfg.num_protect, cfg.protect_info) == 0))
1660 {
1661 #if AVDT_MULTIPLEXING == TRUE
1662 cfg.mux_mask &= p_scb->p_cap->mux_mask;
1663 APPL_TRACE_DEBUG1("mux_mask used x%x", cfg.mux_mask);
1664 #endif
1665 /* save copy of codec type and configuration */
1666 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
1667 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
1668 bta_av_adjust_seps_idx(p_scb);
1669 /* use only the services peer supports */
1670 cfg.psc_mask &= p_scb->p_cap->psc_mask;
1671 p_scb->cur_psc_mask = cfg.psc_mask;
1672
1673 /* open the stream */
1674 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
1675 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1676
1677 if (!bta_av_is_rcfg_sst(p_scb))
1678 {
1679 /* free capabilities buffer */
1680 utl_freebuf((void **) &p_scb->p_cap);
1681 }
1682 }
1683 else
1684 {
1685 /* try the next stream, if any */
1686 p_scb->sep_info_idx++;
1687 bta_av_next_getcap(p_scb, p_data);
1688 }
1689
1690 }
1691
1692 /*******************************************************************************
1693 **
1694 ** Function bta_av_setconfig_rej
1695 **
1696 ** Description Send AVDTP set config reject.
1697 **
1698 ** Returns void
1699 **
1700 *******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1701 void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1702 {
1703 tBTA_AV_REJECT reject;
1704
1705 APPL_TRACE_DEBUG0("bta_av_setconfig_rej");
1706 AVDT_ConfigRsp(p_data->str_msg.handle, p_data->str_msg.msg.hdr.label, AVDT_ERR_BAD_STATE, 0);
1707 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
1708 reject.hndl = p_scb->hndl;
1709 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
1710 }
1711
1712 /*******************************************************************************
1713 **
1714 ** Function bta_av_discover_req
1715 **
1716 ** Description Send an AVDTP discover request to the peer.
1717 **
1718 ** Returns void
1719 **
1720 *******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1721 void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1722 {
1723 /* send avdtp discover request */
1724
1725 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
1726 }
1727
1728 /*******************************************************************************
1729 **
1730 ** Function bta_av_conn_failed
1731 **
1732 ** Description AVDTP connection failed.
1733 **
1734 ** Returns void
1735 **
1736 *******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1737 void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1738 {
1739 p_scb->open_status = BTA_AV_FAIL_STREAM;
1740 bta_av_str_closed(p_scb, p_data);
1741 }
1742
1743 /*******************************************************************************
1744 **
1745 ** Function bta_av_do_start
1746 **
1747 ** Description Start stream.
1748 **
1749 ** Returns void
1750 **
1751 *******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1752 void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1753 {
1754 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
1755 UINT8 cur_role;
1756
1757 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);
1758 if (bta_av_cb.sco_occupied)
1759 {
1760 bta_av_start_failed(p_scb, p_data);
1761 return;
1762 }
1763
1764 /* disallow role switch during streaming, only if we are the master role
1765 * i.e. allow role switch, if we are slave.
1766 * It would not hurt us, if the peer device wants us to be master */
1767 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
1768 (cur_role == BTM_ROLE_MASTER) )
1769 {
1770 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1771 }
1772
1773 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
1774
1775 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
1776 {
1777 p_scb->role |= BTA_AV_ROLE_START_INT;
1778 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
1779
1780 AVDT_StartReq(&p_scb->avdt_handle, 1);
1781 }
1782 else if (p_scb->started)
1783 {
1784 p_scb->role |= BTA_AV_ROLE_START_INT;
1785 if ( p_scb->wait == 0 )
1786 bta_av_start_ok(p_scb, NULL);
1787 }
1788 APPL_TRACE_DEBUG2("started %d role:x%x", p_scb->started, p_scb->role);
1789 }
1790
1791 /*******************************************************************************
1792 **
1793 ** Function bta_av_str_stopped
1794 **
1795 ** Description Stream stopped.
1796 **
1797 ** Returns void
1798 **
1799 *******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1800 void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1801 {
1802 tBTA_AV_SUSPEND suspend_rsp;
1803 UINT8 start = p_scb->started;
1804 BOOLEAN sus_evt = TRUE;
1805 BT_HDR *p_buf;
1806 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
1807
1808 APPL_TRACE_ERROR2("bta_av_str_stopped:audio_open_cnt=%d, p_data %x",
1809 bta_av_cb.audio_open_cnt, p_data);
1810
1811 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
1812 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
1813 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1814 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
1815
1816 if(p_scb->co_started)
1817 {
1818 bta_av_stream_chg(p_scb, FALSE);
1819 p_scb->co_started = FALSE;
1820
1821 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
1822 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
1823 }
1824
1825 /* if q_info.a2d is not empty, drop it now */
1826 if(BTA_AV_CHNL_AUDIO == p_scb->chnl)
1827 {
1828 while((p_buf = (BT_HDR*)GKI_dequeue (&p_scb->q_info.a2d)) != NULL)
1829 GKI_freebuf(p_buf);
1830
1831 /* drop the audio buffers queued in L2CAP */
1832 if(p_data && p_data->api_stop.flush)
1833 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1834 }
1835
1836 suspend_rsp.chnl = p_scb->chnl;
1837 suspend_rsp.hndl = p_scb->hndl;
1838
1839 if (p_data && p_data->api_stop.suspend)
1840 {
1841 APPL_TRACE_DEBUG2("suspending: %d, sup:%d", start, p_scb->suspend_sup);
1842 if ((start) && (p_scb->suspend_sup))
1843 {
1844 sus_evt = FALSE;
1845 p_scb->l2c_bufs = 0;
1846 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
1847 }
1848
1849 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/
1850 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST))
1851 {
1852 suspend_rsp.status = BTA_AV_SUCCESS;
1853 suspend_rsp.initiator = TRUE;
1854 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
1855 }
1856 }
1857 else
1858 {
1859 suspend_rsp.status = BTA_AV_SUCCESS;
1860 suspend_rsp.initiator = TRUE;
1861 APPL_TRACE_EVENT1("bta_av_str_stopped status %d", suspend_rsp.status);
1862
1863 /* send STOP_EVT event only if not in reconfiguring state */
1864 if (p_scb->state != BTA_AV_RCFG_SST)
1865 {
1866 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
1867 }
1868 }
1869 }
1870
1871 /*******************************************************************************
1872 **
1873 ** Function bta_av_reconfig
1874 **
1875 ** Description process the reconfigure request.
1876 ** save the parameter in control block and
1877 ** suspend, reconfigure or close the stream
1878 **
1879 ** Returns void
1880 **
1881 *******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1882 void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1883 {
1884 tAVDT_CFG *p_cfg;
1885 tBTA_AV_API_STOP stop;
1886 tBTA_AV_RECONFIG evt;
1887 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig;
1888
1889 APPL_TRACE_DEBUG4("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
1890 p_scb->recfg_sup, p_scb->suspend_sup,
1891 p_scb->rcfg_idx, p_scb->sep_info_idx);
1892
1893 p_scb->num_recfg = 0;
1894 /* store the new configuration in control block */
1895 if (p_scb->p_cap == NULL)
1896 {
1897 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG));
1898 }
1899 if((p_cfg = p_scb->p_cap) == NULL)
1900 {
1901 /* report failure */
1902 evt.status = BTA_AV_FAIL_RESOURCES;
1903 evt.chnl = p_scb->chnl;
1904 evt.hndl = p_scb->hndl;
1905 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
1906
1907 /* this event is not possible in this state.
1908 * use it to bring the SSM back to open state */
1909 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL);
1910 return;
1911 }
1912
1913 /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/
1914 bta_sys_stop_timer(&p_scb->timer);
1915
1916 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1917 p_cfg->num_protect = p_rcfg->num_protect;
1918 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
1919 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
1920 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
1921 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
1922
1923 /* if the requested index differs from the current one, we can only close/open */
1924 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
1925 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
1926 {
1927 if(p_scb->started)
1928 {
1929 stop.flush = FALSE;
1930 stop.suspend = TRUE;
1931 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
1932 }
1933 else
1934 {
1935 APPL_TRACE_DEBUG0("Reconfig");
1936 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
1937 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
1938 }
1939 }
1940 else
1941 {
1942 /* close the stream */
1943 APPL_TRACE_DEBUG1("close/open num_protect: %d", p_cfg->num_protect);
1944 if(p_scb->started)
1945 bta_av_str_stopped(p_scb, NULL);
1946 p_scb->started = FALSE;
1947
1948 /* drop the buffers queued in L2CAP */
1949 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1950
1951 AVDT_CloseReq(p_scb->avdt_handle);
1952
1953 }
1954 }
1955
1956 /*******************************************************************************
1957 **
1958 ** Function bta_av_data_path
1959 **
1960 ** Description Handle stream data path.
1961 **
1962 ** Returns void
1963 **
1964 *******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1965 void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1966 {
1967 BT_HDR *p_buf;
1968 UINT32 data_len;
1969 UINT32 timestamp;
1970 BOOLEAN new_buf = FALSE;
1971 UINT8 m_pt = 0x60 | p_scb->codec_type;
1972 tAVDT_DATA_OPT_MASK opt;
1973
1974 if (!p_scb->cong)
1975 {
1976 /*
1977 APPL_TRACE_ERROR1("q: %d", p_scb->l2c_bufs);
1978 */
1979 //Always get the current number of bufs que'd up
1980 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
1981
1982 p_buf = (BT_HDR *)GKI_dequeue (&p_scb->q_info.a2d);
1983 if(p_buf)
1984 {
1985 /* use q_info.a2d data, read the timestamp */
1986 timestamp = *(UINT32 *)(p_buf + 1);
1987 }
1988 else
1989 {
1990 new_buf = TRUE;
1991 /* q_info.a2d empty, call co_data, dup data to other channels */
1992 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
1993 ×tamp);
1994
1995 if (p_buf)
1996 {
1997 /* use the offset area for the time stamp */
1998 *(UINT32 *)(p_buf + 1) = timestamp;
1999
2000 /* dup the data to other channels */
2001 bta_av_dup_audio_buf(p_scb, p_buf);
2002 }
2003 }
2004
2005 if(p_buf)
2006 {
2007 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
2008 {
2009 /* there's a buffer, just queue it to L2CAP */
2010 /* There's no need to increment it here, it is always read from L2CAP see above */
2011 /* p_scb->l2c_bufs++; */
2012 /*
2013 APPL_TRACE_ERROR1("qw: %d", p_scb->l2c_bufs);
2014 */
2015
2016 /* opt is a bit mask, it could have several options set */
2017 opt = AVDT_DATA_OPT_NONE;
2018 if (p_scb->no_rtp_hdr)
2019 {
2020 opt |= AVDT_DATA_OPT_NO_RTP;
2021 }
2022
2023 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2024 p_scb->cong = TRUE;
2025 }
2026 else
2027 {
2028 /* there's a buffer, but L2CAP does not seem to be moving data */
2029 if(new_buf)
2030 {
2031 /* just got this buffer from co_data,
2032 * put it in queue */
2033 GKI_enqueue(&p_scb->q_info.a2d, p_buf);
2034 }
2035 else
2036 {
2037 /* just dequeue it from the q_info.a2d */
2038 if(p_scb->q_info.a2d.count < 3)
2039 {
2040 /* put it back to the queue */
2041 GKI_enqueue_head (&p_scb->q_info.a2d, p_buf);
2042 }
2043 else
2044 {
2045 /* too many buffers in q_info.a2d, drop it. */
2046 bta_av_co_audio_drop(p_scb->hndl);
2047 GKI_freebuf(p_buf);
2048 }
2049 }
2050 }
2051 }
2052 }
2053 }
2054
2055 /*******************************************************************************
2056 **
2057 ** Function bta_av_start_ok
2058 **
2059 ** Description Stream started.
2060 **
2061 ** Returns void
2062 **
2063 *******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2064 void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2065 {
2066 tBTA_AV_START start;
2067 tBTA_AV_API_STOP stop;
2068 BOOLEAN initiator = FALSE;
2069 BOOLEAN suspend = FALSE;
2070 UINT16 flush_to;
2071 UINT8 new_role = p_scb->role;
2072 BT_HDR hdr;
2073 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2074 UINT8 cur_role;
2075
2076 APPL_TRACE_DEBUG2("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
2077
2078 p_scb->started = TRUE;
2079 if (p_scb->sco_suspend)
2080 {
2081 p_scb->sco_suspend = FALSE;
2082 }
2083
2084 if (new_role & BTA_AV_ROLE_START_INT)
2085 initiator = TRUE;
2086
2087 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
2088 {
2089 /* role switch has failed */
2090 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2091 p_data = (tBTA_AV_DATA *)&hdr;
2092 hdr.offset = BTA_AV_RS_FAIL;
2093 }
2094 APPL_TRACE_DEBUG1("wait:x%x", p_scb->wait);
2095
2096 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
2097 {
2098 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2099 if (p_data->hdr.offset == BTA_AV_RS_FAIL)
2100 {
2101 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2102 start.chnl = p_scb->chnl;
2103 start.status = BTA_AV_FAIL_ROLE;
2104 start.hndl = p_scb->hndl;
2105 start.initiator = initiator;
2106 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2107 return;
2108 }
2109 }
2110
2111 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2112 p_scb->q_tag = BTA_AV_Q_TAG_START;
2113 else
2114 {
2115 /* The wait flag may be set here while we are already master on the link */
2116 /* this could happen if a role switch complete event occurred during reconfig */
2117 /* if we are now master on the link, there is no need to wait for the role switch, */
2118 /* complete anymore so we can clear the wait for role switch flag */
2119 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2120 }
2121
2122 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
2123 {
2124 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2125 p_scb->q_tag = BTA_AV_Q_TAG_START;
2126 }
2127
2128 if (p_scb->wait & BTA_AV_WAIT_ACP_CAPS_ON)
2129 {
2130 p_scb->wait |= BTA_AV_WAIT_ACP_CAPS_STARTED;
2131 }
2132
2133 if (p_scb->wait)
2134 {
2135 APPL_TRACE_DEBUG2("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
2136 return;
2137 }
2138
2139 /* tell role manager to check M/S role */
2140 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2141
2142 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2143
2144 if(p_scb->media_type == AVDT_MEDIA_AUDIO)
2145 {
2146 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2147 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
2148 * If the code were to be re-arranged for some reasons, this number may need to be changed
2149 */
2150 p_scb->co_started = bta_av_cb.audio_open_cnt;
2151 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2152 }
2153 else
2154 {
2155 flush_to = p_bta_av_cfg->video_flush_to;
2156 }
2157 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
2158
2159 /* clear the congestion flag */
2160 p_scb->cong = FALSE;
2161
2162 if (new_role & BTA_AV_ROLE_START_INT)
2163 {
2164 new_role &= ~BTA_AV_ROLE_START_INT;
2165 }
2166 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
2167 {
2168 suspend = TRUE;
2169 }
2170
2171 if (!suspend)
2172 {
2173 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2174 bta_av_stream_chg(p_scb, TRUE);
2175 }
2176
2177 {
2178 /* If sink starts stream, disable sniff mode here */
2179 if (!initiator)
2180 {
2181 /* If souce is the master role, disable role switch during streaming.
2182 * Otherwise allow role switch, if source is slave.
2183 * Because it would not hurt source, if the peer device wants source to be master */
2184 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2185 (cur_role == BTM_ROLE_MASTER) )
2186 {
2187 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2188 }
2189
2190 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2191 }
2192
2193 p_scb->role = new_role;
2194 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2195 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2196
2197 p_scb->no_rtp_hdr = FALSE;
2198 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr);
2199 p_scb->co_started = TRUE;
2200
2201 APPL_TRACE_DEBUG3("bta_av_start_ok suspending: %d, role:x%x, init %d",
2202 suspend, p_scb->role, initiator);
2203
2204 start.suspending = suspend;
2205 start.initiator = initiator;
2206 start.chnl = p_scb->chnl;
2207 start.status = BTA_AV_SUCCESS;
2208 start.hndl = p_scb->hndl;
2209 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2210
2211 if(suspend)
2212 {
2213 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2214 p_scb->cong = TRUE; /* do not allow the media data to go through */
2215 /* do not duplicate the media packets to this channel */
2216 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2217 p_scb->co_started = FALSE;
2218 stop.flush = FALSE;
2219 stop.suspend = TRUE;
2220 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
2221 }
2222 }
2223 }
2224
2225 /*******************************************************************************
2226 **
2227 ** Function bta_av_start_failed
2228 **
2229 ** Description Stream start failed.
2230 **
2231 ** Returns void
2232 **
2233 *******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2234 void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2235 {
2236 tBTA_AV_START start;
2237
2238 if(p_scb->started == FALSE && p_scb->co_started == FALSE)
2239 {
2240 /* if start failed, clear role */
2241 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2242
2243 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2244 start.chnl = p_scb->chnl;
2245 start.status = BTA_AV_FAIL;
2246 start.initiator = TRUE;
2247 start.hndl = p_scb->hndl;
2248 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2249 }
2250
2251 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
2252 p_scb->sco_suspend = FALSE;
2253 }
2254
2255 /*******************************************************************************
2256 **
2257 ** Function bta_av_str_closed
2258 **
2259 ** Description Stream closed.
2260 **
2261 ** Returns void
2262 **
2263 *******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2264 void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2265 {
2266 tBTA_AV data;
2267 tBTA_AV_EVT event;
2268 UINT16 mtu;
2269 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2270
2271 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2272 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2273 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2274 if (bta_av_cb.audio_open_cnt <= 1)
2275 {
2276 /* last connection - restore the allow switch flag */
2277 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2278 }
2279
2280 if (p_scb->open_status)
2281 {
2282 /* must be failure when opening the stream */
2283 bdcpy(data.open.bd_addr, p_scb->peer_addr);
2284 data.open.status = p_scb->open_status;
2285 data.open.chnl = p_scb->chnl;
2286 data.open.hndl = p_scb->hndl;
2287 event = BTA_AV_OPEN_EVT;
2288 p_scb->open_status = BTA_AV_SUCCESS;
2289
2290 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2291 bta_av_cleanup(p_scb, p_data);
2292 (*bta_av_cb.p_cback)(event, &data);
2293 }
2294 else
2295 {
2296 /* do stop if we were started */
2297 if (p_scb->co_started)
2298 {
2299 bta_av_str_stopped(p_scb, NULL);
2300 }
2301
2302 /* Update common mtu shared by remaining connectons */
2303 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
2304
2305 {
2306 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
2307 data.close.chnl = p_scb->chnl;
2308 data.close.hndl = p_scb->hndl;
2309 event = BTA_AV_CLOSE_EVT;
2310
2311 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2312 bta_av_cleanup(p_scb, p_data);
2313 (*bta_av_cb.p_cback)(event, &data);
2314 }
2315 }
2316 }
2317
2318 /*******************************************************************************
2319 **
2320 ** Function bta_av_clr_cong
2321 **
2322 ** Description Clear stream congestion flag.
2323 **
2324 ** Returns void
2325 **
2326 *******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2327 void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2328 {
2329 if(p_scb->co_started)
2330 p_scb->cong = FALSE;
2331 }
2332
2333 /*******************************************************************************
2334 **
2335 ** Function bta_av_suspend_cfm
2336 **
2337 ** Description process the suspend response
2338 **
2339 ** Returns void
2340 **
2341 *******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2342 void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2343 {
2344 tBTA_AV_SUSPEND suspend_rsp;
2345 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2346 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2347
2348 APPL_TRACE_DEBUG2 ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
2349 bta_av_cb.audio_open_cnt, err_code);
2350
2351 if (p_scb->started == FALSE)
2352 {
2353 /* handle the condition where there is a collision of SUSPEND req from either side
2354 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2355 */
2356 APPL_TRACE_WARNING1("bta_av_suspend_cfm: already suspended, ignore, err_code %d",
2357 err_code);
2358 return;
2359 }
2360
2361 suspend_rsp.status = BTA_AV_SUCCESS;
2362 if (err_code && (err_code != AVDT_ERR_BAD_STATE))
2363 {
2364 /* Disable suspend feature only with explicit rejection(not with timeout) */
2365 if (err_code != AVDT_ERR_TIMEOUT)
2366 {
2367 p_scb->suspend_sup = FALSE;
2368 }
2369 suspend_rsp.status = BTA_AV_FAIL;
2370
2371 APPL_TRACE_ERROR0 ("bta_av_suspend_cfm: suspend failed, closing connection");
2372
2373 /* SUSPEND failed. Close connection. */
2374 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2375 }
2376 else
2377 {
2378 /* only set started to FALSE when suspend is successful */
2379 p_scb->started = FALSE;
2380 }
2381
2382 if (p_scb->role & BTA_AV_ROLE_SUSPEND)
2383 {
2384 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2385 p_scb->cong = FALSE;
2386 }
2387
2388 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2389 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2390 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2391 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2392
2393 /* in case that we received suspend_ind, we may need to call co_stop here */
2394 if(p_scb->co_started)
2395 {
2396 bta_av_stream_chg(p_scb, FALSE);
2397
2398 {
2399 p_scb->co_started = FALSE;
2400 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2401 }
2402 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2403 }
2404
2405 {
2406 suspend_rsp.chnl = p_scb->chnl;
2407 suspend_rsp.hndl = p_scb->hndl;
2408 suspend_rsp.initiator = p_data->str_msg.initiator;
2409 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2410 }
2411 }
2412
2413 /*******************************************************************************
2414 **
2415 ** Function bta_av_rcfg_str_ok
2416 **
2417 ** Description report reconfigure successful
2418 **
2419 ** Returns void
2420 **
2421 *******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2422 void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2423 {
2424 tBTA_AV_RECONFIG evt;
2425
2426 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2427 APPL_TRACE_DEBUG1("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
2428
2429 /* rc listen */
2430 bta_av_st_rc_timer(p_scb, NULL);
2431 utl_freebuf((void **)&p_scb->p_cap);
2432
2433 /* No need to keep the role bits once reconfig is done. */
2434 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2435 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2436 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2437
2438 {
2439 /* reconfigure success */
2440 evt.status = BTA_AV_SUCCESS;
2441 evt.chnl = p_scb->chnl;
2442 evt.hndl = p_scb->hndl;
2443 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2444 }
2445 }
2446
2447 /*******************************************************************************
2448 **
2449 ** Function bta_av_rcfg_failed
2450 **
2451 ** Description process reconfigure failed
2452 **
2453 ** Returns void
2454 **
2455 *******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2456 void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2457 {
2458 tBTA_AV_RECONFIG evt;
2459
2460 APPL_TRACE_DEBUG2("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
2461 p_scb->num_recfg, bta_av_cb.conn_lcb);
2462 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2463 {
2464 bta_av_cco_close(p_scb, p_data);
2465 /* report failure */
2466 evt.status = BTA_AV_FAIL_STREAM;
2467 evt.chnl = p_scb->chnl;
2468 evt.hndl = p_scb->hndl;
2469 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2470 /* go to closing state */
2471 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2472 }
2473 else
2474 {
2475 /* open failed. try again */
2476 p_scb->num_recfg++;
2477 if(bta_av_cb.conn_lcb)
2478 {
2479 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
2480 }
2481 else
2482 {
2483 bta_av_connect_req(p_scb, NULL);
2484 }
2485 }
2486 }
2487
2488 /*******************************************************************************
2489 **
2490 ** Function bta_av_rcfg_connect
2491 **
2492 ** Description stream closed. reconnect the stream
2493 **
2494 ** Returns void
2495 **
2496 *******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2497 void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2498 {
2499 p_scb->cong = FALSE;
2500 p_scb->num_recfg++;
2501 APPL_TRACE_DEBUG1("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
2502 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2503 {
2504 /* let bta_av_rcfg_failed report fail */
2505 bta_av_rcfg_failed(p_scb, NULL);
2506 }
2507 else
2508 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2509 }
2510
2511 /*******************************************************************************
2512 **
2513 ** Function bta_av_rcfg_discntd
2514 **
2515 ** Description AVDT disconnected. reconnect the stream
2516 **
2517 ** Returns void
2518 **
2519 *******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2520 void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2521 {
2522 tBTA_AV_RECONFIG evt;
2523
2524 APPL_TRACE_DEBUG1("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
2525 p_scb->num_recfg++;
2526 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2527 {
2528 /* report failure */
2529 evt.status = BTA_AV_FAIL_STREAM;
2530 evt.chnl = p_scb->chnl;
2531 evt.hndl = p_scb->hndl;
2532 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2533 /* report close event & go to init state */
2534 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2535 }
2536 else
2537 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2538 }
2539
2540 /*******************************************************************************
2541 **
2542 ** Function bta_av_suspend_cont
2543 **
2544 ** Description received the suspend response.
2545 ** continue to reconfigure the stream
2546 **
2547 ** Returns void
2548 **
2549 *******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2550 void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2551 {
2552 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2553 tBTA_AV_RECONFIG evt;
2554
2555 p_scb->started = FALSE;
2556 p_scb->cong = FALSE;
2557 if (err_code)
2558 {
2559 if (AVDT_ERR_CONNECT == err_code)
2560 {
2561 /* report failure */
2562 evt.status = BTA_AV_FAIL;
2563 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2564 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2565 }
2566 else
2567 {
2568 APPL_TRACE_ERROR0("suspend rejected, try close");
2569 /* Disable suspend feature only with explicit rejection(not with timeout) */
2570 if (err_code != AVDT_ERR_TIMEOUT)
2571 {
2572 p_scb->suspend_sup = FALSE;
2573 }
2574 /* drop the buffers queued in L2CAP */
2575 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2576
2577 AVDT_CloseReq(p_scb->avdt_handle);
2578 }
2579 }
2580 else
2581 {
2582 APPL_TRACE_DEBUG0("bta_av_suspend_cont calling AVDT_ReconfigReq");
2583 /* reconfig the stream */
2584
2585 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2586 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2587 }
2588 }
2589
2590 /*******************************************************************************
2591 **
2592 ** Function bta_av_rcfg_cfm
2593 **
2594 ** Description if reconfigure is successful, report the event
2595 ** otherwise, close the stream.
2596 **
2597 ** Returns void
2598 **
2599 *******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2600 void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2601 {
2602 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2603
2604 /*
2605 APPL_TRACE_DEBUG0("bta_av_rcfg_cfm");
2606 */
2607 if (err_code)
2608 {
2609 APPL_TRACE_ERROR0("reconfig rejected, try close");
2610 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */
2611 if (err_code != AVDT_ERR_TIMEOUT)
2612 {
2613 p_scb->recfg_sup = FALSE;
2614 }
2615 /* started flag is FALSE when reconfigure command is sent */
2616 /* drop the buffers queued in L2CAP */
2617 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2618 AVDT_CloseReq(p_scb->avdt_handle);
2619 }
2620 else
2621 {
2622 /* update the codec info after rcfg cfm */
2623 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE);
2624 /* take the SSM back to OPEN state */
2625 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2626 }
2627 }
2628
2629 /*******************************************************************************
2630 **
2631 ** Function bta_av_rcfg_open
2632 **
2633 ** Description AVDT is connected. open the stream with the new configuration
2634 **
2635 ** Returns void
2636 **
2637 *******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2638 void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2639 {
2640 APPL_TRACE_DEBUG1("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
2641
2642 if (p_scb->num_disc_snks == 0)
2643 {
2644 /* Need to update call-out module so that it will be ready for discover */
2645 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2646
2647 /* send avdtp discover request */
2648 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
2649 }
2650 else
2651 {
2652 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
2653 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
2654 /* we may choose to use a different SEP at reconfig.
2655 * adjust the sep_idx now */
2656 bta_av_adjust_seps_idx(p_scb);
2657
2658 /* open the stream with the new config */
2659 p_scb->sep_info_idx = p_scb->rcfg_idx;
2660 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
2661 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
2662 }
2663
2664 }
2665
2666 /*******************************************************************************
2667 **
2668 ** Function bta_av_security_rej
2669 **
2670 ** Description Send an AVDTP security reject.
2671 **
2672 ** Returns void
2673 **
2674 *******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2675 void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2676 {
2677 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2678 NULL, 0);
2679 }
2680
2681 /*******************************************************************************
2682 **
2683 ** Function bta_av_chk_2nd_start
2684 **
2685 ** Description check if this is 2nd stream and if it needs to be started.
2686 ** This function needs to be kept very similar to bta_av_chk_start
2687 **
2688 ** Returns void
2689 **
2690 *******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2691 void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2692 {
2693 tBTA_AV_SCB *p_scbi;
2694 int i;
2695 BOOLEAN new_started = FALSE;
2696
2697
2698 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
2699 {
2700 /* more than one audio channel is connected */
2701 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
2702 {
2703 /* this channel does not need to be reconfigured.
2704 * if there is other channel streaming, start the stream now */
2705 for(i=0; i<BTA_AV_NUM_STRS; i++)
2706 {
2707 p_scbi = bta_av_cb.p_scb[i];
2708 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
2709 {
2710 if (!new_started)
2711 {
2712 /* start the new stream */
2713 new_started = TRUE;
2714 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2715 }
2716 /* may need to update the flush timeout of this already started stream */
2717 if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
2718 {
2719 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2720 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
2721 }
2722 }
2723 }
2724 }
2725 }
2726 }
2727
2728 /*******************************************************************************
2729 **
2730 ** Function bta_av_open_rc
2731 **
2732 ** Description Send a message to main SM to open RC channel.
2733 **
2734 ** Returns void
2735 **
2736 *******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2737 void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2738 {
2739 tBTA_AV_START start;
2740
2741 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);
2742 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
2743 {
2744 /* waiting for role switch for some reason & the timer expires */
2745 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2746 {
2747 APPL_TRACE_ERROR0 ("failed to start streaming for role management reasons!!");
2748 bta_sys_stop_timer(&p_scb->timer);
2749 start.chnl = p_scb->chnl;
2750 start.status = BTA_AV_FAIL_ROLE;
2751 start.initiator = TRUE;
2752 start.hndl = p_scb->hndl;
2753 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2754 bta_av_cb.rs_idx = 0;
2755 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2756 }
2757 else
2758 {
2759 /* role switch is done. continue to start streaming */
2760 bta_av_cb.rs_idx = 0;
2761 p_data->hdr.offset = BTA_AV_RS_OK;
2762 bta_av_start_ok (p_scb, p_data);
2763 }
2764 return;
2765 }
2766
2767 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
2768 {
2769 if(bta_av_cb.disc)
2770 {
2771 /* AVRC discover db is in use */
2772 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
2773 {
2774 /* AVRC channel is not connected. delay a little bit */
2775 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0)
2776 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
2777 else
2778 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
2779 }
2780 }
2781 else
2782 {
2783 /* use main SM for AVRC SDP activities */
2784 bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
2785 }
2786 }
2787 else
2788 {
2789 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
2790 {
2791 /* the open API said that this handle does not want a RC connection.
2792 * disconnect it now */
2793 AVRC_Close(p_scb->rc_handle);
2794 }
2795 }
2796 }
2797
2798 /*******************************************************************************
2799 **
2800 ** Function bta_av_open_at_inc
2801 **
2802 ** Description This function is called if API open is called by application
2803 ** while state-machine is at incoming state.
2804 **
2805 ** Returns void
2806 **
2807 *******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2808 void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2809 {
2810 tBTA_AV_API_OPEN *p_buf;
2811
2812 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
2813
2814 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
2815 {
2816 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
2817
2818 /* API open will be handled at timeout if SNK did not start signalling. */
2819 /* API open will be ignored if SNK starts signalling. */
2820 }
2821 else
2822 {
2823 /* SNK did not start signalling, API was called N seconds timeout. */
2824 /* We need to switch to INIT state and start opening connection. */
2825 p_scb->coll_mask = 0;
2826 bta_av_set_scb_sst_init (p_scb);
2827
2828 if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL)
2829 {
2830 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
2831 bta_sys_sendmsg(p_buf);
2832 }
2833 }
2834 }
2835
2836 #endif /* BTA_AV_INCLUDED */
2837