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 <assert.h>
31 #include <string.h>
32
33 #include "avdt_api.h"
34 #include "bta_av_int.h"
35 #include "bt_utils.h"
36 #include "l2cdefs.h"
37 #include "l2c_api.h"
38 #include "osi/include/properties.h"
39 #include "utl.h"
40 #include "vendor.h"
41
42 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
43 #include "bta_ar_api.h"
44 #endif
45
46 /*****************************************************************************
47 ** Constants
48 *****************************************************************************/
49
50 /* the delay time in milliseconds to start service discovery on AVRCP */
51 #ifndef BTA_AV_RC_DISC_TIME_VAL
52 #define BTA_AV_RC_DISC_TIME_VAL 3500
53 #endif
54
55 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */
56 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
57 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
58 #endif
59
60 /* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */
61 #ifndef BTA_AV_RECONFIG_RETRY
62 #define BTA_AV_RECONFIG_RETRY 6
63 #endif
64
65 /* ACL quota we are letting FW use for A2DP Offload Tx. */
66 #define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA 4
67
68 static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
69
70 static const size_t SBC_MAX_BITPOOL_OFFSET = 6;
71 static const size_t SBC_MAX_BITPOOL = 53;
72
73 /* state machine states */
74 enum
75 {
76 BTA_AV_INIT_SST,
77 BTA_AV_INCOMING_SST,
78 BTA_AV_OPENING_SST,
79 BTA_AV_OPEN_SST,
80 BTA_AV_RCFG_SST,
81 BTA_AV_CLOSING_SST
82 };
83
84
85 /* the call out functions for audio stream */
86 const tBTA_AV_CO_FUNCTS bta_av_a2d_cos =
87 {
88 bta_av_co_audio_init,
89 bta_av_co_audio_disc_res,
90 bta_av_co_audio_getconfig,
91 bta_av_co_audio_setconfig,
92 bta_av_co_audio_open,
93 bta_av_co_audio_close,
94 bta_av_co_audio_start,
95 bta_av_co_audio_stop,
96 bta_av_co_audio_src_data_path,
97 bta_av_co_audio_delay
98 };
99
100 /* ssm action functions for audio stream */
101 const tBTA_AV_SACT bta_av_a2d_action[] =
102 {
103 bta_av_do_disc_a2d, /* BTA_AV_DO_DISC */
104 bta_av_cleanup, /* BTA_AV_CLEANUP */
105 bta_av_free_sdb, /* BTA_AV_FREE_SDB */
106 bta_av_config_ind, /* BTA_AV_CONFIG_IND */
107 bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */
108 bta_av_security_req, /* BTA_AV_SECURITY_REQ */
109 bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */
110 bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */
111 bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */
112 bta_av_str_opened, /* BTA_AV_STR_OPENED */
113 bta_av_security_ind, /* BTA_AV_SECURITY_IND */
114 bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */
115 bta_av_do_close, /* BTA_AV_DO_CLOSE */
116 bta_av_connect_req, /* BTA_AV_CONNECT_REQ */
117 bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */
118 bta_av_disc_results, /* BTA_AV_DISC_RESULTS */
119 bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
120 bta_av_open_failed, /* BTA_AV_OPEN_FAILED */
121 bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */
122 bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */
123 bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */
124 bta_av_conn_failed, /* BTA_AV_CONN_FAILED */
125 bta_av_do_start, /* BTA_AV_DO_START */
126 bta_av_str_stopped, /* BTA_AV_STR_STOPPED */
127 bta_av_reconfig, /* BTA_AV_RECONFIG */
128 bta_av_data_path, /* BTA_AV_DATA_PATH */
129 bta_av_start_ok, /* BTA_AV_START_OK */
130 bta_av_start_failed, /* BTA_AV_START_FAILED */
131 bta_av_str_closed, /* BTA_AV_STR_CLOSED */
132 bta_av_clr_cong, /* BTA_AV_CLR_CONG */
133 bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */
134 bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */
135 bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */
136 bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */
137 bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */
138 bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */
139 bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */
140 bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */
141 bta_av_security_rej, /* BTA_AV_SECURITY_REJ */
142 bta_av_open_rc, /* BTA_AV_OPEN_RC */
143 bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */
144 bta_av_save_caps, /* BTA_AV_SAVE_CAPS */
145 bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */
146 bta_av_cco_close, /* BTA_AV_CCO_CLOSE */
147 bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */
148 bta_av_role_res, /* BTA_AV_ROLE_RES */
149 bta_av_delay_co, /* BTA_AV_DELAY_CO */
150 bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */
151 bta_av_offload_req, /* BTA_AV_OFFLOAD_REQ */
152 bta_av_offload_rsp, /* BTA_AV_OFFLOAD_RSP */
153 NULL
154 };
155
156 /* these tables translate AVDT events to SSM events */
157 static const UINT16 bta_av_stream_evt_ok[] = {
158 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
159 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
160 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
161 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
162 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
163 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
164 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
165 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
166 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
167 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
168 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
169 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
170 0, /* AVDT_RECONFIG_IND_EVT */
171 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
172 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
173 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
174 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
175 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
176 #if (AVDT_REPORTING == TRUE)
177 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
178 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
179 #endif
180 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
181 0 /* AVDT_DELAY_REPORT_CFM_EVT */
182 };
183
184 static const UINT16 bta_av_stream_evt_fail[] = {
185 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
186 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
187 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
188 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
189 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
190 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
191 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
192 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
193 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
194 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
195 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
196 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
197 0, /* AVDT_RECONFIG_IND_EVT */
198 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
199 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
200 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
201 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
202 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
203 #if (AVDT_REPORTING == TRUE)
204 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
205 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
206 #endif
207 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
208 0 /* AVDT_DELAY_REPORT_CFM_EVT */
209 };
210
211 void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt);
212 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
213 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
214 #if BTA_AV_NUM_STRS > 2
215 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
216 #endif
217 #if BTA_AV_NUM_STRS > 3
218 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
219 #endif
220 #if BTA_AV_NUM_STRS > 4
221 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
222 #endif
223 #if BTA_AV_NUM_STRS > 5
224 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
225 #endif
226 /* the array of callback functions to receive events from AVDT control channel */
227 tAVDT_CTRL_CBACK * const bta_av_dt_cback[] =
228 {
229 bta_av_stream0_cback
230 ,bta_av_stream1_cback
231 #if BTA_AV_NUM_STRS > 2
232 ,bta_av_stream2_cback
233 #endif
234 #if BTA_AV_NUM_STRS > 3
235 ,bta_av_stream3_cback
236 #endif
237 #if BTA_AV_NUM_STRS > 4
238 ,bta_av_stream4_cback
239 #endif
240 #if BTA_AV_NUM_STRS > 5
241 ,bta_av_stream5_cback
242 #endif
243 };
244 /***********************************************
245 **
246 ** Function bta_get_scb_handle
247 **
248 ** Description gives the registered AVDT handle.by checking with sep_type.
249 **
250 **
251 ** Returns void
252 ***********************************************/
bta_av_get_scb_handle(tBTA_AV_SCB * p_scb,UINT8 local_sep)253 static UINT8 bta_av_get_scb_handle(tBTA_AV_SCB *p_scb, UINT8 local_sep)
254 {
255 for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
256 if ((p_scb->seps[i].tsep == local_sep) &&
257 (p_scb->seps[i].codec_type == p_scb->codec_type))
258 return (p_scb->seps[i].av_handle);
259 }
260 APPL_TRACE_DEBUG(" bta_av_get_scb_handle appropiate sep_type not found")
261 return 0; /* return invalid handle */
262 }
263
264 /***********************************************
265 **
266 ** Function bta_av_get_scb_sep_type
267 **
268 ** Description gives the sep type by cross-checking with AVDT handle
269 **
270 **
271 ** Returns void
272 ***********************************************/
bta_av_get_scb_sep_type(tBTA_AV_SCB * p_scb,UINT8 tavdt_handle)273 static UINT8 bta_av_get_scb_sep_type(tBTA_AV_SCB *p_scb, UINT8 tavdt_handle)
274 {
275 for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
276 if (p_scb->seps[i].av_handle == tavdt_handle)
277 return (p_scb->seps[i].tsep);
278 }
279 APPL_TRACE_DEBUG(" bta_av_get_scb_sep_type appropiate handle not found")
280 return 3; /* return invalid sep type */
281 }
282
283 /*******************************************************************************
284 **
285 ** Function bta_av_save_addr
286 **
287 ** Description copy the bd_addr and maybe reset the supported flags
288 **
289 **
290 ** Returns void
291 **
292 *******************************************************************************/
bta_av_save_addr(tBTA_AV_SCB * p_scb,const BD_ADDR b)293 static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b)
294 {
295 APPL_TRACE_DEBUG("bta_av_save_addr r:%d, s:%d",
296 p_scb->recfg_sup, p_scb->suspend_sup);
297 if(bdcmp(p_scb->peer_addr, b) != 0)
298 {
299 APPL_TRACE_ERROR("reset flags");
300 /* a new addr, reset the supported flags */
301 p_scb->recfg_sup = TRUE;
302 p_scb->suspend_sup = TRUE;
303 }
304
305 /* do this copy anyway, just in case the first addr matches
306 * the control block one by accident */
307 bdcpy(p_scb->peer_addr, b);
308 }
309
310 /*******************************************************************************
311 **
312 ** Function notify_start_failed
313 **
314 ** Description notify up-layer AV start failed
315 **
316 **
317 ** Returns void
318 **
319 *******************************************************************************/
notify_start_failed(tBTA_AV_SCB * p_scb)320 static void notify_start_failed(tBTA_AV_SCB *p_scb)
321 {
322 tBTA_AV_START start;
323 /* if start failed, clear role */
324 p_scb->role &= ~BTA_AV_ROLE_START_INT;
325 start.chnl = p_scb->chnl;
326 start.status = BTA_AV_FAIL;
327 start.initiator = TRUE;
328 start.hndl = p_scb->hndl;
329 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
330 }
331
332 /*******************************************************************************
333 **
334 ** Function bta_av_st_rc_timer
335 **
336 ** Description start the AVRC timer if no RC connection & CT is supported &
337 ** RC is used or
338 ** as ACP (we do not really know if we want AVRC)
339 **
340 ** Returns void
341 **
342 *******************************************************************************/
bta_av_st_rc_timer(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)343 static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
344 {
345 UNUSED(p_data);
346
347 APPL_TRACE_DEBUG("bta_av_st_rc_timer rc_handle:%d, use_rc: %d",
348 p_scb->rc_handle, p_scb->use_rc);
349 /* for outgoing RC connection as INT/CT */
350 if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
351 /* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
352 (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)))
353 {
354 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
355 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
356 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
357 } else {
358 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
359 }
360 }
361
362 }
363
364 /*******************************************************************************
365 **
366 ** Function bta_av_next_getcap
367 **
368 ** Description The function gets the capabilities of the next available
369 ** stream found in the discovery results.
370 **
371 ** Returns TRUE if we sent request to AVDT, FALSE otherwise.
372 **
373 *******************************************************************************/
bta_av_next_getcap(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)374 static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
375 {
376 int i;
377 tAVDT_GETCAP_REQ *p_req;
378 BOOLEAN sent_cmd = FALSE;
379 UINT16 uuid_int = p_scb->uuid_int;
380 UINT8 sep_requested = 0;
381
382 if(uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
383 sep_requested = AVDT_TSEP_SNK;
384 else if(uuid_int == UUID_SERVCLASS_AUDIO_SINK)
385 sep_requested = AVDT_TSEP_SRC;
386
387 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++)
388 {
389 /* steam not in use, is a sink, and is the right media type (audio/video) */
390 if ((p_scb->sep_info[i].in_use == FALSE) &&
391 (p_scb->sep_info[i].tsep == sep_requested) &&
392 (p_scb->sep_info[i].media_type == p_scb->media_type))
393 {
394 p_scb->sep_info_idx = i;
395
396 /* we got a stream; get its capabilities */
397 if (p_scb->p_cap == NULL)
398 p_scb->p_cap = (tAVDT_CFG *)osi_malloc(sizeof(tAVDT_CFG));
399 if (p_scb->avdt_version >= AVDT_VERSION_SYNC)
400 {
401 p_req = AVDT_GetAllCapReq;
402 }
403 else
404 {
405 p_req = AVDT_GetCapReq;
406 }
407 (*p_req)(p_scb->peer_addr,
408 p_scb->sep_info[i].seid,
409 p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]);
410 sent_cmd = TRUE;
411 break;
412 }
413 }
414
415 /* if no streams available then stream open fails */
416 if (!sent_cmd)
417 {
418 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
419 }
420
421 return sent_cmd;
422
423 }
424
425 /*******************************************************************************
426 **
427 ** Function bta_av_proc_stream_evt
428 **
429 ** Description Utility function to compose stream events.
430 **
431 ** Returns void
432 **
433 *******************************************************************************/
bta_av_proc_stream_evt(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data,int index)434 static void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index)
435 {
436 UINT16 sec_len = 0;
437 tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index];
438
439 if (p_data)
440 {
441 if (event == AVDT_SECURITY_IND_EVT)
442 {
443 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ?
444 p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN;
445 }
446 else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0)
447 {
448 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ?
449 p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN;
450 }
451 }
452
453 if (p_scb) {
454 tBTA_AV_STR_MSG *p_msg =
455 (tBTA_AV_STR_MSG *)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
456
457 /* copy event data, bd addr, and handle to event message buffer */
458 p_msg->hdr.offset = 0;
459
460 if (bd_addr != NULL)
461 {
462 bdcpy(p_msg->bd_addr, bd_addr);
463 APPL_TRACE_DEBUG(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
464 bd_addr[0], bd_addr[1],
465 bd_addr[2], bd_addr[3],
466 bd_addr[4], bd_addr[5]);
467 }
468
469 if (p_data != NULL)
470 {
471 memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL));
472 /* copy config params to event message buffer */
473 switch (event)
474 {
475 case AVDT_RECONFIG_CFM_EVT:
476 APPL_TRACE_DEBUG("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x",
477 (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],
478 (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],
479 (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],
480 p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]);
481 break;
482
483
484
485 case AVDT_CONFIG_IND_EVT:
486 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP.
487 * If we already have a signalling connection with the bd_addr and the streaming
488 * SST is at INIT state, change it to INCOMING state to handle the signalling
489 * from the 2nd SEP. */
490 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb)))
491 {
492 bta_av_set_scb_sst_incoming (p_scb);
493
494 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state.
495 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to
496 * incoming which we do it above.
497 * We also have to set the old p_scb state to init to be used later */
498 for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
499 if ((bta_av_cb.p_scb[i]) && (i != index)) {
500 if (bta_av_cb.p_scb[i]->state == BTA_AV_INCOMING_SST) {
501 bta_av_cb.p_scb[i]->state = BTA_AV_INIT_SST;
502 bta_av_cb.p_scb[i]->coll_mask = 0;
503 break;
504 }
505 }
506 }
507 }
508
509 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG));
510 break;
511
512 case AVDT_SECURITY_IND_EVT:
513 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1);
514 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len);
515 break;
516
517 case AVDT_SECURITY_CFM_EVT:
518 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1);
519 if (p_data->hdr.err_code == 0)
520 {
521 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len);
522 }
523 break;
524 case AVDT_SUSPEND_IND_EVT:
525 p_msg->msg.hdr.err_code = 0;
526 break;
527
528 default:
529 break;
530 }
531 }
532 else
533 p_msg->msg.hdr.err_code = 0;
534
535 /* look up application event */
536 if ((p_data == NULL) || (p_data->hdr.err_code == 0))
537 {
538 p_msg->hdr.event = bta_av_stream_evt_ok[event];
539 }
540 else
541 {
542 p_msg->hdr.event = bta_av_stream_evt_fail[event];
543 }
544
545 p_msg->initiator = FALSE;
546 if (event == AVDT_SUSPEND_CFM_EVT)
547 p_msg->initiator = TRUE;
548
549 APPL_TRACE_VERBOSE("hndl:x%x", p_scb->hndl);
550 p_msg->hdr.layer_specific = p_scb->hndl;
551 p_msg->handle = handle;
552 p_msg->avdt_event = event;
553 bta_sys_sendmsg(p_msg);
554 }
555
556 /* coverity[var_deref_model] */
557 /* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event
558 * these 2 events always have associated p_data */
559 if (p_data)
560 {
561 bta_av_conn_cback(handle, bd_addr, event, p_data);
562 }
563 else
564 {
565 APPL_TRACE_ERROR("%s: p_data is null", __func__);
566 }
567 }
568
569 /*******************************************************************************
570 **
571 ** Function bta_av_stream_data_cback
572 **
573 ** Description This is the AVDTP callback function for stream events.
574 **
575 ** Returns void
576 **
577 *******************************************************************************/
bta_av_stream_data_cback(UINT8 handle,BT_HDR * p_pkt,UINT32 time_stamp,UINT8 m_pt)578 void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt)
579 {
580 int index = 0;
581 tBTA_AV_SCB *p_scb ;
582 APPL_TRACE_DEBUG("bta_av_stream_data_cback avdt_handle: %d pkt_len=0x%x ofst = 0x%x", handle,p_pkt->len,p_pkt->offset);
583 APPL_TRACE_DEBUG(" Number of frames 0x%x",*((UINT8*)(p_pkt + 1) + p_pkt->offset));
584 APPL_TRACE_DEBUG("Sequence Number 0x%x",p_pkt->layer_specific);
585 /* Get SCB and correct sep type*/
586 for(index = 0; index < BTA_AV_NUM_STRS;index ++ )
587 {
588 p_scb = bta_av_cb.p_scb[index];
589 if((p_scb->avdt_handle == handle)&&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
590 break;
591 }
592 if(index == BTA_AV_NUM_STRS) /* cannot find correct handler */
593 {
594 osi_free(p_pkt);
595 return;
596 }
597 p_pkt->event = BTA_AV_MEDIA_DATA_EVT;
598 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
599 osi_free(p_pkt); /* a copy of packet had been delivered, we free this buffer */
600 }
601
602 /*******************************************************************************
603 **
604 ** Function bta_av_stream0_cback
605 **
606 ** Description This is the AVDTP callback function for stream events.
607 **
608 ** Returns void
609 **
610 *******************************************************************************/
bta_av_stream0_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)611 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
612 {
613 APPL_TRACE_VERBOSE("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event);
614 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0);
615 }
616
617 /*******************************************************************************
618 **
619 ** Function bta_av_stream1_cback
620 **
621 ** Description This is the AVDTP callback function for stream events.
622 **
623 ** Returns void
624 **
625 *******************************************************************************/
bta_av_stream1_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)626 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
627 {
628 APPL_TRACE_EVENT("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event);
629 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1);
630 }
631
632 #if BTA_AV_NUM_STRS > 2
633 /*******************************************************************************
634 **
635 ** Function bta_av_stream2_cback
636 **
637 ** Description This is the AVDTP callback function for stream events.
638 **
639 ** Returns void
640 **
641 *******************************************************************************/
bta_av_stream2_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)642 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
643 {
644 APPL_TRACE_EVENT("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event);
645 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2);
646 }
647 #endif
648
649 #if BTA_AV_NUM_STRS > 3
650 /*******************************************************************************
651 **
652 ** Function bta_av_stream3_cback
653 **
654 ** Description This is the AVDTP callback function for stream events.
655 **
656 ** Returns void
657 **
658 *******************************************************************************/
bta_av_stream3_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)659 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
660 {
661 APPL_TRACE_EVENT("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event);
662 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3);
663 }
664 #endif
665
666 /*******************************************************************************
667 **
668 ** Function bta_av_stream4_cback
669 **
670 ** Description This is the AVDTP callback function for stream events.
671 **
672 ** Returns void
673 **
674 *******************************************************************************/
675 #if BTA_AV_NUM_STRS > 4
bta_av_stream4_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)676 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
677 {
678 APPL_TRACE_EVENT("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event);
679 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4);
680 }
681 #endif
682
683 /*******************************************************************************
684 **
685 ** Function bta_av_stream5_cback
686 **
687 ** Description This is the AVDTP callback function for stream events.
688 **
689 ** Returns void
690 **
691 *******************************************************************************/
692 #if BTA_AV_NUM_STRS > 5
bta_av_stream5_cback(UINT8 handle,BD_ADDR bd_addr,UINT8 event,tAVDT_CTRL * p_data)693 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
694 {
695 APPL_TRACE_EVENT("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event);
696 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5);
697 }
698 #endif
699
700 /*******************************************************************************
701 **
702 ** Function bta_av_a2d_sdp_cback
703 **
704 ** Description A2DP service discovery callback.
705 **
706 ** Returns void
707 **
708 *******************************************************************************/
bta_av_a2d_sdp_cback(BOOLEAN found,tA2D_Service * p_service)709 static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service)
710 {
711 tBTA_AV_SCB *p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
712
713 if (p_scb == NULL) {
714 APPL_TRACE_ERROR("%s, no scb found for handle(0x%x)", __func__,
715 bta_av_cb.handle);
716 return;
717 }
718
719 tBTA_AV_SDP_RES *p_msg =
720 (tBTA_AV_SDP_RES *)osi_malloc(sizeof(tBTA_AV_SDP_RES));
721 p_msg->hdr.event = (found) ?
722 BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT;
723 if (found && (p_service != NULL))
724 p_scb->avdt_version = p_service->avdt_version;
725 else
726 p_scb->avdt_version = 0x00;
727 p_msg->hdr.layer_specific = bta_av_cb.handle;
728
729 bta_sys_sendmsg(p_msg);
730 }
731
732 /*******************************************************************************
733 **
734 ** Function bta_av_adjust_seps_idx
735 **
736 ** Description adjust the sep_idx
737 **
738 ** Returns
739 **
740 *******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb,UINT8 avdt_handle)741 static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb, UINT8 avdt_handle)
742 {
743 APPL_TRACE_DEBUG("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type);
744 for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
745 APPL_TRACE_DEBUG("av_handle: %d codec_type: %d",
746 p_scb->seps[i].av_handle, p_scb->seps[i].codec_type);
747 if((p_scb->seps[i].av_handle && p_scb->codec_type == p_scb->seps[i].codec_type)
748 && (p_scb->seps[i].av_handle == avdt_handle))
749 {
750 p_scb->sep_idx = i;
751 p_scb->avdt_handle = p_scb->seps[i].av_handle;
752 break;
753 }
754 }
755 }
756
757 /*******************************************************************************
758 **
759 ** Function bta_av_switch_role
760 **
761 ** Description Switch role was not started and a timer was started.
762 ** another attempt to switch role now - still opening.
763 **
764 ** Returns void
765 **
766 *******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)767 void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
768 {
769 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
770 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open;
771 UNUSED(p_data);
772
773 APPL_TRACE_DEBUG("bta_av_switch_role wait:x%x", p_scb->wait);
774 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
775 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
776
777 /* clear the masks set when the timer is started */
778 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START);
779
780 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
781 {
782 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
783 {
784 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
785 }
786 else
787 {
788 /* this should not happen in theory. Just in case...
789 * continue to do_disc_a2d */
790 switch_res = BTA_AV_RS_DONE;
791 }
792 }
793 else
794 {
795 /* report failure on OPEN */
796 switch_res = BTA_AV_RS_FAIL;
797 }
798
799 if (switch_res != BTA_AV_RS_NONE)
800 {
801 if (bta_av_cb.rs_idx == (p_scb->hdi + 1))
802 {
803 bta_av_cb.rs_idx = 0;
804 }
805 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
806 p_scb->q_tag = 0;
807 p_buf->switch_res = switch_res;
808 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf);
809 }
810 }
811
812 /*******************************************************************************
813 **
814 ** Function bta_av_role_res
815 **
816 ** Description Handle the role changed event
817 **
818 **
819 ** Returns void
820 **
821 *******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)822 void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
823 {
824 BOOLEAN initiator = FALSE;
825 tBTA_AV_START start;
826 tBTA_AV_OPEN av_open;
827
828 APPL_TRACE_DEBUG("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role);
829 if (p_scb->role & BTA_AV_ROLE_START_INT)
830 initiator = TRUE;
831
832 if (p_scb->q_tag == BTA_AV_Q_TAG_START)
833 {
834 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED)
835 {
836 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
837 if (p_data->role_res.hci_status != HCI_SUCCESS)
838 {
839 p_scb->role &= ~BTA_AV_ROLE_START_INT;
840 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
841 /* start failed because of role switch. */
842 start.chnl = p_scb->chnl;
843 start.status = BTA_AV_FAIL_ROLE;
844 start.hndl = p_scb->hndl;
845 start.initiator = initiator;
846 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
847 }
848 else
849 {
850 bta_av_start_ok(p_scb, p_data);
851 }
852 }
853 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
854 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
855 }
856 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
857 {
858 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN)
859 {
860 p_scb->role &= ~BTA_AV_ROLE_START_INT;
861 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
862
863 if (p_data->role_res.hci_status != HCI_SUCCESS)
864 {
865 /* Open failed because of role switch. */
866 bdcpy(av_open.bd_addr, p_scb->peer_addr);
867 av_open.chnl = p_scb->chnl;
868 av_open.hndl = p_scb->hndl;
869 start.status = BTA_AV_FAIL_ROLE;
870 if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
871 av_open.sep = AVDT_TSEP_SNK;
872 else if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
873 av_open.sep = AVDT_TSEP_SRC;
874 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open);
875 }
876 else
877 {
878 /* Continue av open process */
879 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
880 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
881 }
882 }
883 else
884 {
885 APPL_TRACE_WARNING ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait);
886 }
887 }
888
889 APPL_TRACE_DEBUG("wait:x%x, role:x%x", p_scb->wait, p_scb->role);
890 }
891
892 /*******************************************************************************
893 **
894 ** Function bta_av_delay_co
895 **
896 ** Description Call the delay call-out function to report the delay report
897 ** from SNK
898 **
899 ** Returns void
900 **
901 *******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)902 void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
903 {
904 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay);
905 }
906
907 /*******************************************************************************
908 **
909 ** Function bta_av_do_disc_a2d
910 **
911 ** Description Do service discovery for A2DP.
912 **
913 ** Returns void
914 **
915 *******************************************************************************/
bta_av_do_disc_a2d(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)916 void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
917 {
918 BOOLEAN ok_continue = FALSE;
919 tA2D_SDP_DB_PARAMS db_params;
920 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
921 ATTR_ID_PROTOCOL_DESC_LIST,
922 ATTR_ID_BT_PROFILE_DESC_LIST};
923 UINT16 sdp_uuid = 0; /* UUID for which SDP has to be done */
924
925 APPL_TRACE_DEBUG("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d",
926 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt);
927
928 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
929
930 switch(p_data->api_open.switch_res)
931 {
932 case BTA_AV_RS_NONE:
933 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
934 {
935 /* waiting for role switch result. save the api to control block */
936 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN));
937 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
938 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
939 }
940 else
941 {
942 ok_continue = TRUE;
943 }
944 break;
945
946 case BTA_AV_RS_FAIL:
947 /* report a new failure event */
948 p_scb->open_status = BTA_AV_FAIL_ROLE;
949 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
950 break;
951
952 case BTA_AV_RS_OK:
953 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open;
954 /* continue to open if link role is ok */
955 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
956 {
957 ok_continue = TRUE;
958 }
959 else
960 {
961 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
962 }
963 break;
964
965 case BTA_AV_RS_DONE:
966 ok_continue = TRUE;
967 break;
968 }
969
970 APPL_TRACE_DEBUG("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag);
971 if (!ok_continue)
972 return;
973
974 /* clear the role switch bits */
975 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
976
977 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC)
978 {
979 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
980 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
981 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
982 }
983
984 if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
985 {
986 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
987
988 if (bta_av_cb.audio_open_cnt == 1)
989 {
990 /* there's already an A2DP connection. do not allow switch */
991 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
992 }
993 }
994 /* store peer addr other parameters */
995 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
996 p_scb->sec_mask = p_data->api_open.sec_mask;
997 p_scb->use_rc = p_data->api_open.use_rc;
998
999 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1000
1001 if (p_scb->skip_sdp == TRUE)
1002 {
1003 tA2D_Service a2d_ser;
1004 a2d_ser.avdt_version = AVDT_VERSION;
1005 p_scb->skip_sdp = FALSE;
1006 p_scb->uuid_int = p_data->api_open.uuid;
1007 /* only one A2D find service is active at a time */
1008 bta_av_cb.handle = p_scb->hndl;
1009 APPL_TRACE_WARNING("%s: Skip Sdp for incoming A2dp connection", __func__);
1010 bta_av_a2d_sdp_cback(TRUE, &a2d_ser);
1011 return;
1012 }
1013
1014 /* only one A2D find service is active at a time */
1015 bta_av_cb.handle = p_scb->hndl;
1016
1017 /* set up parameters */
1018 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
1019 db_params.num_attr = 3;
1020 db_params.p_attrs = attr_list;
1021 p_scb->uuid_int = p_data->api_open.uuid;
1022 p_scb->sdp_discovery_started = TRUE;
1023 if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1024 sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
1025 else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1026 sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
1027
1028 APPL_TRACE_DEBUG("%s: uuid_int 0x%x, Doing SDP For 0x%x", __func__,
1029 p_scb->uuid_int, sdp_uuid);
1030 if (A2D_FindService(sdp_uuid, p_scb->peer_addr, &db_params,
1031 bta_av_a2d_sdp_cback) == A2D_SUCCESS)
1032 return;
1033
1034 /* when the code reaches here, either the DB is NULL
1035 * or A2D_FindService is not successful */
1036 bta_av_a2d_sdp_cback(FALSE, NULL);
1037 }
1038
1039 /*******************************************************************************
1040 **
1041 ** Function bta_av_cleanup
1042 **
1043 ** Description cleanup AV stream control block.
1044 **
1045 ** Returns void
1046 **
1047 *******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1048 void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1049 {
1050 tBTA_AV_CONN_CHG msg;
1051 UINT8 role = BTA_AV_ROLE_AD_INT;
1052 UNUSED(p_data);
1053
1054 APPL_TRACE_DEBUG("bta_av_cleanup");
1055
1056 /* free any buffers */
1057 osi_free_and_reset((void **)&p_scb->p_cap);
1058 p_scb->sdp_discovery_started = FALSE;
1059 p_scb->avdt_version = 0;
1060
1061 /* initialize some control block variables */
1062 p_scb->open_status = BTA_AV_SUCCESS;
1063
1064 /* if de-registering shut everything down */
1065 msg.hdr.layer_specific = p_scb->hndl;
1066 p_scb->started = FALSE;
1067 p_scb->cong = FALSE;
1068 p_scb->role = role;
1069 p_scb->cur_psc_mask = 0;
1070 p_scb->wait = 0;
1071 p_scb->num_disc_snks = 0;
1072 alarm_cancel(p_scb->avrc_ct_timer);
1073
1074 vendor_get_interface()->send_command(
1075 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
1076 if (p_scb->offload_start_pending) {
1077 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
1078 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
1079 }
1080 p_scb->offload_start_pending = FALSE;
1081
1082 p_scb->skip_sdp = FALSE;
1083 if (p_scb->deregistring)
1084 {
1085 /* remove stream */
1086 for (int i = 0; i < BTA_AV_MAX_SEPS; i++) {
1087 if (p_scb->seps[i].av_handle)
1088 AVDT_RemoveStream(p_scb->seps[i].av_handle);
1089 p_scb->seps[i].av_handle = 0;
1090 }
1091
1092 bta_av_dereg_comp((tBTA_AV_DATA *) &msg);
1093 }
1094 else
1095 {
1096 /* report stream closed to main SM */
1097 msg.is_up = FALSE;
1098 bdcpy(msg.peer_addr, p_scb->peer_addr);
1099 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1100 }
1101 }
1102
1103 /*******************************************************************************
1104 **
1105 ** Function bta_av_free_sdb
1106 **
1107 ** Description Free service discovery db buffer.
1108 **
1109 ** Returns void
1110 **
1111 *******************************************************************************/
bta_av_free_sdb(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1112 void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1113 {
1114 UNUSED(p_data);
1115 p_scb->sdp_discovery_started = FALSE;
1116 }
1117
1118 /*******************************************************************************
1119 **
1120 ** Function bta_av_config_ind
1121 **
1122 ** Description Handle a stream configuration indication from the peer.
1123 **
1124 ** Returns void
1125 **
1126 *******************************************************************************/
bta_av_config_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1127 void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1128 {
1129 tBTA_AV_CI_SETCONFIG setconfig;
1130 tAVDT_SEP_INFO *p_info;
1131 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg;
1132 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
1133 UINT8 local_sep; /* sep type of local handle on which connection was received */
1134 tBTA_AV_STR_MSG *p_msg = (tBTA_AV_STR_MSG *)p_data;
1135 UNUSED(p_data);
1136
1137 local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
1138 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1139 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
1140 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX];
1141 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
1142
1143 /* Clear collision mask */
1144 p_scb->coll_mask = 0;
1145 alarm_cancel(bta_av_cb.accept_signalling_timer);
1146
1147 /* if no codec parameters in configuration, fail */
1148 if ((p_evt_cfg->num_codec == 0) ||
1149 /* or the peer requests for a service we do not support */
1150 ((psc_mask != p_scb->cfg.psc_mask) &&
1151 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) )
1152 {
1153 setconfig.hndl = p_scb->hndl; /* we may not need this */
1154 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
1155 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig);
1156 }
1157 else
1158 {
1159 p_info = &p_scb->sep_info[0];
1160 p_info->in_use = 0;
1161 p_info->media_type = p_scb->media_type;
1162 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
1163
1164 /* Sep type of Peer will be oppsite role to our local sep */
1165 if (local_sep == AVDT_TSEP_SRC)
1166 p_info->tsep = AVDT_TSEP_SNK;
1167 else if (local_sep == AVDT_TSEP_SNK)
1168 p_info->tsep = AVDT_TSEP_SRC;
1169
1170 p_scb->role |= BTA_AV_ROLE_AD_ACP;
1171 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
1172 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
1173 p_scb->use_rc = TRUE;
1174 else
1175 p_scb->use_rc = FALSE;
1176
1177 p_scb->num_seps = 1;
1178 p_scb->sep_info_idx = 0;
1179 APPL_TRACE_DEBUG("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);
1180 /* in case of A2DP SINK this is the first time peer data is being sent to co functions */
1181 if (local_sep == AVDT_TSEP_SNK)
1182 {
1183 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1184 p_evt_cfg->codec_info,
1185 p_info->seid,
1186 p_scb->peer_addr,
1187 p_evt_cfg->num_protect,
1188 p_evt_cfg->protect_info,
1189 AVDT_TSEP_SNK,
1190 p_msg->handle);
1191 }
1192 else
1193 {
1194 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1195 p_evt_cfg->codec_info,
1196 p_info->seid,
1197 p_scb->peer_addr,
1198 p_evt_cfg->num_protect,
1199 p_evt_cfg->protect_info,
1200 AVDT_TSEP_SRC,
1201 p_msg->handle);
1202 }
1203 }
1204 }
1205
1206 /*******************************************************************************
1207 **
1208 ** Function bta_av_disconnect_req
1209 **
1210 ** Description Disconnect AVDTP connection.
1211 **
1212 ** Returns void
1213 **
1214 *******************************************************************************/
bta_av_disconnect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1215 void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1216 {
1217 tBTA_AV_RCB *p_rcb;
1218 UNUSED(p_data);
1219
1220 APPL_TRACE_DEBUG("%s conn_lcb: 0x%x", __func__, bta_av_cb.conn_lcb);
1221
1222 alarm_cancel(bta_av_cb.link_signalling_timer);
1223 alarm_cancel(p_scb->avrc_ct_timer);
1224
1225 if (bta_av_cb.conn_lcb) {
1226 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1));
1227 if (p_rcb)
1228 bta_av_del_rc(p_rcb);
1229 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1230 } else {
1231 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1232 }
1233 }
1234
1235 /*******************************************************************************
1236 **
1237 ** Function bta_av_security_req
1238 **
1239 ** Description Send an AVDTP security request.
1240 **
1241 ** Returns void
1242 **
1243 *******************************************************************************/
bta_av_security_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1244 void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1245 {
1246 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1247 {
1248 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1249 p_data->api_protect_req.len);
1250 }
1251 }
1252
1253 /*******************************************************************************
1254 **
1255 ** Function bta_av_security_rsp
1256 **
1257 ** Description Send an AVDTP security response.
1258 **
1259 ** Returns void
1260 **
1261 *******************************************************************************/
bta_av_security_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1262 void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1263 {
1264 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1265 {
1266 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code,
1267 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len);
1268 }
1269 else
1270 {
1271 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC,
1272 NULL, 0);
1273 }
1274 }
1275
1276 /*******************************************************************************
1277 **
1278 ** Function bta_av_setconfig_rsp
1279 **
1280 ** Description setconfig is OK
1281 **
1282 ** Returns void
1283 **
1284 *******************************************************************************/
bta_av_setconfig_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1285 void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1286 {
1287 UINT8 num = p_data->ci_setconfig.num_seid + 1;
1288 UINT8 avdt_handle = p_data->ci_setconfig.avdt_handle;
1289 UINT8 *p_seid = p_data->ci_setconfig.p_seid;
1290 int i;
1291 UINT8 local_sep;
1292
1293 /* we like this codec_type. find the sep_idx */
1294 local_sep = bta_av_get_scb_sep_type(p_scb,avdt_handle);
1295 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1296 APPL_TRACE_DEBUG("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask);
1297
1298 if ((AVDT_TSEP_SNK == local_sep) && (p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
1299 (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL)) {
1300 tBTA_AV_MEDIA av_sink_codec_info;
1301 memcpy(av_sink_codec_info.avk_config.bd_addr,p_scb->peer_addr,sizeof(BD_ADDR));
1302 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1303 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
1304 &av_sink_codec_info);
1305 }
1306
1307
1308 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code,
1309 p_data->ci_setconfig.category);
1310
1311 alarm_cancel(bta_av_cb.link_signalling_timer);
1312
1313 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS)
1314 {
1315 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1316 if(p_data->ci_setconfig.recfg_needed)
1317 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1318 APPL_TRACE_DEBUG("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d",
1319 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1320 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1321 * getcap on these SEID */
1322 p_scb->num_seps = num;
1323
1324 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1325 p_scb->avdt_version = AVDT_VERSION_SYNC;
1326
1327
1328 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1)
1329 {
1330 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind.
1331 * call disc_res now */
1332 /* this is called in A2DP SRC path only, In case of SINK we don't need it */
1333 if (local_sep == AVDT_TSEP_SRC)
1334 p_scb->p_cos->disc_res(p_scb->hndl, num, num, 0, p_scb->peer_addr,
1335 UUID_SERVCLASS_AUDIO_SOURCE);
1336 }
1337 else
1338 {
1339 /* we do not know the peer device and it is using non-SBC codec
1340 * we need to know all the SEPs on SNK */
1341 bta_av_discover_req(p_scb, NULL);
1342 return;
1343 }
1344
1345 for (i = 1; i < num; i++)
1346 {
1347 APPL_TRACE_DEBUG("sep_info[%d] SEID: %d", i, p_seid[i-1]);
1348 /* initialize the sep_info[] to get capabilities */
1349 p_scb->sep_info[i].in_use = FALSE;
1350 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1351 p_scb->sep_info[i].media_type = p_scb->media_type;
1352 p_scb->sep_info[i].seid = p_seid[i-1];
1353 }
1354
1355 /* only in case of local sep as SRC we need to look for other SEPs, In case of SINK we don't */
1356 if (local_sep == AVDT_TSEP_SRC)
1357 {
1358 /* Make sure UUID has been initialized... */
1359 if (p_scb->uuid_int == 0)
1360 p_scb->uuid_int = p_scb->open_api.uuid;
1361 bta_av_next_getcap(p_scb, p_data);
1362 }
1363 }
1364 }
1365
1366 /*******************************************************************************
1367 **
1368 ** Function bta_av_str_opened
1369 **
1370 ** Description Stream opened OK (incoming/outgoing).
1371 **
1372 ** Returns void
1373 **
1374 *******************************************************************************/
bta_av_str_opened(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1375 void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1376 {
1377 tBTA_AV_CONN_CHG msg;
1378 tBTA_AV_OPEN open;
1379 UINT8 *p;
1380 UINT16 mtu;
1381
1382 msg.hdr.layer_specific = p_scb->hndl;
1383 msg.is_up = TRUE;
1384 bdcpy(msg.peer_addr, p_scb->peer_addr);
1385 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1386 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1387 /* set the congestion flag, so AV would not send media packets by accident */
1388 p_scb->cong = TRUE;
1389 p_scb->offload_start_pending = FALSE;
1390
1391
1392 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1393 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
1394 APPL_TRACE_DEBUG("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d",
1395 p_scb->l2c_cid, p_scb->stream_mtu, mtu);
1396 if(mtu == 0 || mtu > p_scb->stream_mtu)
1397 mtu = p_scb->stream_mtu;
1398
1399 /* Set the media channel as medium priority */
1400 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM);
1401 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE);
1402
1403 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1404 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1405
1406 p_scb->l2c_bufs = 0;
1407 p_scb->p_cos->open(p_scb->hndl,
1408 p_scb->codec_type, p_scb->cfg.codec_info, mtu);
1409
1410 {
1411 /* TODO check if other audio channel is open.
1412 * If yes, check if reconfig is needed
1413 * Rigt now we do not do this kind of checking.
1414 * BTA-AV is INT for 2nd audio connection.
1415 * The application needs to make sure the current codec_info is proper.
1416 * If one audio connection is open and another SNK attempts to connect to AV,
1417 * the connection will be rejected.
1418 */
1419 /* check if other audio channel is started. If yes, start */
1420 bdcpy(open.bd_addr, p_scb->peer_addr);
1421 open.chnl = p_scb->chnl;
1422 open.hndl = p_scb->hndl;
1423 open.status = BTA_AV_SUCCESS;
1424 open.starting = bta_av_chk_start(p_scb);
1425 open.edr = 0;
1426 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr)))
1427 {
1428 if(HCI_EDR_ACL_2MPS_SUPPORTED(p))
1429 open.edr |= BTA_AV_EDR_2MBPS;
1430 if(HCI_EDR_ACL_3MPS_SUPPORTED(p))
1431 open.edr |= BTA_AV_EDR_3MBPS;
1432 }
1433 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
1434 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr);
1435 #endif
1436 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
1437 open.sep = AVDT_TSEP_SNK;
1438 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
1439 open.sep = AVDT_TSEP_SRC;
1440
1441 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1442 if(open.starting)
1443 {
1444 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1445 }
1446 }
1447
1448 // This code is used to pass PTS TC for AVDTP ABORT
1449 char value[PROPERTY_VALUE_MAX] = {0};
1450 if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false"))
1451 && (!strcmp(value, "true")))
1452 {
1453 APPL_TRACE_ERROR ("%s: Calling AVDT_AbortReq", __func__);
1454 AVDT_AbortReq(p_scb->avdt_handle);
1455 }
1456 }
1457
1458 /*******************************************************************************
1459 **
1460 ** Function bta_av_security_ind
1461 **
1462 ** Description Handle an AVDTP security indication.
1463 **
1464 ** Returns void
1465 **
1466 *******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1467 void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1468 {
1469 tBTA_AV_PROTECT_REQ protect_req;
1470
1471 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1472
1473 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1474 {
1475 protect_req.chnl = p_scb->chnl;
1476 protect_req.hndl = p_scb->hndl;
1477 /*
1478 APPL_TRACE_EVENT("sec ind handle: x%x", protect_req.hndl);
1479 */
1480 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1481 protect_req.len = p_data->str_msg.msg.security_ind.len;
1482
1483 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req);
1484 }
1485 /* app doesn't support security indication; respond with failure */
1486 else
1487 {
1488 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0);
1489 }
1490 }
1491
1492 /*******************************************************************************
1493 **
1494 ** Function bta_av_security_cfm
1495 **
1496 ** Description Handle an AVDTP security confirm.
1497 **
1498 ** Returns void
1499 **
1500 *******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1501 void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1502 {
1503 tBTA_AV_PROTECT_RSP protect_rsp;
1504
1505 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1506 {
1507 protect_rsp.chnl = p_scb->chnl;
1508 protect_rsp.hndl = p_scb->hndl;
1509 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1510 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1511 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code;
1512
1513 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp);
1514 }
1515 }
1516
1517 /*******************************************************************************
1518 **
1519 ** Function bta_av_do_close
1520 **
1521 ** Description Close stream.
1522 **
1523 ** Returns void
1524 **
1525 *******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1526 void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1527 {
1528 UNUSED(p_data);
1529
1530 /* stop stream if started */
1531 if (p_scb->co_started)
1532 {
1533 bta_av_str_stopped(p_scb, NULL);
1534 }
1535 alarm_cancel(bta_av_cb.link_signalling_timer);
1536
1537 /* close stream */
1538 p_scb->started = FALSE;
1539
1540 /* drop the buffers queued in L2CAP */
1541 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1542
1543 AVDT_CloseReq(p_scb->avdt_handle);
1544 /* just in case that the link is congested, link is flow controled by peer or
1545 * for whatever reason the the close request can not be sent in time.
1546 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link
1547 */
1548 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
1549 BTA_AV_API_CLOSE_EVT, p_scb->hndl);
1550 }
1551
1552 /*******************************************************************************
1553 **
1554 ** Function bta_av_connect_req
1555 **
1556 ** Description Connect AVDTP connection.
1557 **
1558 ** Returns void
1559 **
1560 *******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1561 void bta_av_connect_req(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1562 {
1563 UNUSED(p_data);
1564
1565 p_scb->sdp_discovery_started = FALSE;
1566 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
1567 {
1568 /* SNK initiated L2C connection while SRC was doing SDP. */
1569 /* Wait until timeout to check if SNK starts signalling. */
1570 APPL_TRACE_EVENT("%s: coll_mask = 0x%2X", __func__, p_scb->coll_mask);
1571 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
1572 APPL_TRACE_EVENT("%s: updated coll_mask = 0x%2X", __func__,
1573 p_scb->coll_mask);
1574 return;
1575 }
1576
1577 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
1578 }
1579
1580 /*******************************************************************************
1581 **
1582 ** Function bta_av_sdp_failed
1583 **
1584 ** Description Service discovery failed.
1585 **
1586 ** Returns void
1587 **
1588 *******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1589 void bta_av_sdp_failed(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1590 {
1591 if (!p_scb->open_status)
1592 p_scb->open_status = BTA_AV_FAIL_SDP;
1593
1594 p_scb->sdp_discovery_started = FALSE;
1595 bta_av_str_closed(p_scb, p_data);
1596 }
1597
1598 /*******************************************************************************
1599 **
1600 ** Function bta_av_disc_results
1601 **
1602 ** Description Handle the AVDTP discover results. Search through the
1603 ** results and find the first available stream, and get
1604 ** its capabilities.
1605 **
1606 ** Returns void
1607 **
1608 *******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1609 void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1610 {
1611 UINT8 num_snks = 0, num_srcs =0, i;
1612 /* our uuid in case we initiate connection */
1613 UINT16 uuid_int = p_scb->uuid_int;
1614
1615 APPL_TRACE_DEBUG(" initiator UUID 0x%x", uuid_int);
1616 /* store number of stream endpoints returned */
1617 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1618
1619 for (i = 0; i < p_scb->num_seps; i++)
1620 {
1621 /* steam not in use, is a sink, and is audio */
1622 if ((p_scb->sep_info[i].in_use == FALSE) &&
1623 (p_scb->sep_info[i].media_type == p_scb->media_type))
1624 {
1625 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1626 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1627 num_snks++;
1628
1629 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1630 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1631 num_srcs++;
1632
1633 }
1634 }
1635
1636 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, num_srcs, p_scb->peer_addr,
1637 uuid_int);
1638 p_scb->num_disc_snks = num_snks;
1639 p_scb->num_disc_srcs = num_srcs;
1640
1641 /* if we got any */
1642 if (p_scb->num_seps > 0)
1643 {
1644 /* initialize index into discovery results */
1645 p_scb->sep_info_idx = 0;
1646
1647 /* get the capabilities of the first available stream */
1648 bta_av_next_getcap(p_scb, p_data);
1649 }
1650 /* else we got discover response but with no streams; we're done */
1651 else
1652 {
1653 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1654 }
1655 }
1656
1657 /*******************************************************************************
1658 **
1659 ** Function bta_av_disc_res_as_acp
1660 **
1661 ** Description Handle the AVDTP discover results. Search through the
1662 ** results and find the first available stream, and get
1663 ** its capabilities.
1664 **
1665 ** Returns void
1666 **
1667 *******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1668 void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1669 {
1670 UINT8 num_snks = 0, i;
1671
1672 /* store number of stream endpoints returned */
1673 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1674
1675
1676
1677 for (i = 0; i < p_scb->num_seps; i++)
1678 {
1679 /* steam is a sink, and is audio */
1680 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1681 (p_scb->sep_info[i].media_type == p_scb->media_type))
1682 {
1683 p_scb->sep_info[i].in_use = FALSE;
1684 num_snks++;
1685 }
1686 }
1687 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, 0, p_scb->peer_addr,
1688 UUID_SERVCLASS_AUDIO_SOURCE);
1689 p_scb->num_disc_snks = num_snks;
1690 p_scb->num_disc_srcs = 0;
1691
1692 /* if we got any */
1693 if (p_scb->num_seps > 0)
1694 {
1695 /* initialize index into discovery results */
1696 p_scb->sep_info_idx = 0;
1697
1698 /* get the capabilities of the first available stream */
1699 bta_av_next_getcap(p_scb, p_data);
1700 }
1701 /* else we got discover response but with no streams; we're done */
1702 else
1703 {
1704 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1705 }
1706 }
1707
1708 /*******************************************************************************
1709 **
1710 ** Function bta_av_save_caps
1711 **
1712 ** Description report the SNK SEP capabilities to application
1713 **
1714 ** Returns void
1715 **
1716 *******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1717 void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1718 {
1719 tAVDT_CFG cfg;
1720 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1721 UINT8 old_wait = p_scb->wait;
1722 BOOLEAN getcap_done = FALSE;
1723
1724 APPL_TRACE_DEBUG("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
1725 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1726 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
1727 /* let application know the capability of the SNK */
1728 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
1729 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1730 &cfg.num_protect, cfg.protect_info);
1731
1732 p_scb->sep_info_idx++;
1733 if(p_scb->num_seps > p_scb->sep_info_idx)
1734 {
1735 /* Some devices have seps at the end of the discover list, which is not */
1736 /* matching media type(video not audio). */
1737 /* In this case, we are done with getcap without sending another */
1738 /* request to AVDT. */
1739 if (!bta_av_next_getcap(p_scb, p_data))
1740 getcap_done = TRUE;
1741 }
1742 else
1743 getcap_done = TRUE;
1744
1745 if (getcap_done)
1746 {
1747 /* we are done getting capabilities. restore the p_cb->sep_info_idx */
1748 p_scb->sep_info_idx = 0;
1749 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
1750 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
1751 {
1752 bta_av_start_ok (p_scb, NULL);
1753 }
1754 }
1755 }
1756
1757 /*******************************************************************************
1758 **
1759 ** Function bta_av_set_use_rc
1760 **
1761 ** Description set to use AVRC for this stream control block.
1762 **
1763 ** Returns void
1764 **
1765 *******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1766 void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1767 {
1768 UNUSED(p_data);
1769
1770 p_scb->use_rc = TRUE;
1771 }
1772
1773 /*******************************************************************************
1774 **
1775 ** Function bta_av_cco_close
1776 **
1777 ** Description call close call-out function.
1778 **
1779 ** Returns void
1780 **
1781 *******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1782 void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1783 {
1784 UINT16 mtu;
1785 UNUSED(p_data);
1786
1787 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
1788
1789 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
1790 }
1791
1792 /*******************************************************************************
1793 **
1794 ** Function bta_av_open_failed
1795 **
1796 ** Description Failed to open an AVDT stream
1797 **
1798 ** Returns void
1799 **
1800 *******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1801 void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1802 {
1803
1804 BOOLEAN is_av_opened = FALSE;
1805 tBTA_AV_SCB * p_opened_scb = NULL;
1806 UINT8 idx;
1807 tBTA_AV_OPEN open;
1808
1809 APPL_TRACE_DEBUG("bta_av_open_failed");
1810 p_scb->open_status = BTA_AV_FAIL_STREAM;
1811 bta_av_cco_close(p_scb, p_data);
1812
1813 /* check whether there is already an opened audio or video connection with the same device */
1814 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ )
1815 {
1816 p_opened_scb = bta_av_cb.p_scb[idx];
1817 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) )
1818 is_av_opened = TRUE;
1819
1820 }
1821
1822 /* if there is already an active AV connnection with the same bd_addr,
1823 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */
1824 if (is_av_opened == TRUE)
1825 {
1826 bdcpy(open.bd_addr, p_scb->peer_addr);
1827 open.chnl = p_scb->chnl;
1828 open.hndl = p_scb->hndl;
1829 open.status = BTA_AV_FAIL_GET_CAP;
1830 open.starting = bta_av_chk_start(p_scb);
1831 open.edr = 0;
1832 /* set the state back to initial state */
1833 bta_av_set_scb_sst_init(p_scb);
1834
1835 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
1836 open.sep = AVDT_TSEP_SNK;
1837 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
1838 open.sep = AVDT_TSEP_SRC;
1839
1840 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1841
1842 }
1843 else
1844 {
1845 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1846 }
1847 }
1848
1849
1850 /*******************************************************************************
1851 **
1852 ** Function bta_av_getcap_results
1853 **
1854 ** Description Handle the AVDTP get capabilities results. Check the codec
1855 ** type and see if it matches ours. If it does not, get the
1856 ** capabilities of the next stream, if any.
1857 **
1858 ** Returns void
1859 **
1860 *******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1861 void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1862 {
1863 tAVDT_CFG cfg;
1864 UINT8 media_type;
1865 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1866 UINT16 uuid_int; /* UUID for which connection was initiatied */
1867
1868 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1869 cfg.num_codec = 1;
1870 cfg.num_protect = p_scb->p_cap->num_protect;
1871 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
1872 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
1873 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
1874
1875 APPL_TRACE_DEBUG("num_codec %d", p_scb->p_cap->num_codec);
1876 APPL_TRACE_DEBUG("media type x%x, x%x", media_type, p_scb->media_type);
1877 #if AVDT_MULTIPLEXING == TRUE
1878 APPL_TRACE_DEBUG("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
1879 #endif
1880
1881 /* if codec present and we get a codec configuration */
1882 if ((p_scb->p_cap->num_codec != 0) &&
1883 (media_type == p_scb->media_type) &&
1884 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
1885 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1886 &cfg.num_protect, cfg.protect_info) == 0))
1887 {
1888 #if AVDT_MULTIPLEXING == TRUE
1889 cfg.mux_mask &= p_scb->p_cap->mux_mask;
1890 APPL_TRACE_DEBUG("mux_mask used x%x", cfg.mux_mask);
1891 #endif
1892 /* save copy of codec type and configuration */
1893 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
1894 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
1895
1896 uuid_int = p_scb->uuid_int;
1897 APPL_TRACE_DEBUG(" initiator UUID = 0x%x ", uuid_int);
1898 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1899 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1900 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1901 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1902
1903 /* use only the services peer supports */
1904 cfg.psc_mask &= p_scb->p_cap->psc_mask;
1905 p_scb->cur_psc_mask = cfg.psc_mask;
1906
1907 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1908 (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL))
1909 {
1910 APPL_TRACE_DEBUG("%s Configure Decoder for Sink Connection.", __func__);
1911 tBTA_AV_MEDIA av_sink_codec_info;
1912 memcpy(av_sink_codec_info.avk_config.bd_addr,p_scb->peer_addr,sizeof(BD_ADDR));
1913 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1914 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
1915 &av_sink_codec_info);
1916 }
1917
1918 if ((uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) &&
1919 (cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] > SBC_MAX_BITPOOL))
1920 {
1921 APPL_TRACE_WARNING("%s max bitpool length received for SBC is out of range."
1922 "Clamping the codec bitpool configuration from %d to %d.", __func__,
1923 cfg.codec_info[SBC_MAX_BITPOOL_OFFSET], SBC_MAX_BITPOOL);
1924 cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] = SBC_MAX_BITPOOL;
1925 }
1926
1927 /* open the stream */
1928 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
1929 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1930
1931 if (!bta_av_is_rcfg_sst(p_scb))
1932 {
1933 /* free capabilities buffer */
1934 osi_free_and_reset((void **)&p_scb->p_cap);
1935 }
1936 }
1937 else
1938 {
1939 /* try the next stream, if any */
1940 p_scb->sep_info_idx++;
1941 bta_av_next_getcap(p_scb, p_data);
1942 }
1943
1944 }
1945
1946 /*******************************************************************************
1947 **
1948 ** Function bta_av_setconfig_rej
1949 **
1950 ** Description Send AVDTP set config reject.
1951 **
1952 ** Returns void
1953 **
1954 *******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1955 void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1956 {
1957 tBTA_AV_REJECT reject;
1958 UINT8 avdt_handle = p_data->ci_setconfig.avdt_handle;
1959
1960 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1961 APPL_TRACE_DEBUG("bta_av_setconfig_rej: sep_idx: %d",p_scb->sep_idx);
1962 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1963
1964 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
1965 reject.hndl = p_scb->hndl;
1966 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
1967 }
1968
1969 /*******************************************************************************
1970 **
1971 ** Function bta_av_discover_req
1972 **
1973 ** Description Send an AVDTP discover request to the peer.
1974 **
1975 ** Returns void
1976 **
1977 *******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1978 void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1979 {
1980 UNUSED(p_data);
1981
1982 /* send avdtp discover request */
1983
1984 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
1985 }
1986
1987 /*******************************************************************************
1988 **
1989 ** Function bta_av_conn_failed
1990 **
1991 ** Description AVDTP connection failed.
1992 **
1993 ** Returns void
1994 **
1995 *******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1996 void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1997 {
1998 p_scb->open_status = BTA_AV_FAIL_STREAM;
1999 bta_av_str_closed(p_scb, p_data);
2000 }
2001
2002 /*******************************************************************************
2003 **
2004 ** Function bta_av_do_start
2005 **
2006 ** Description Start stream.
2007 **
2008 ** Returns void
2009 **
2010 *******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2011 void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2012 {
2013 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2014 UINT8 cur_role;
2015
2016 APPL_TRACE_DEBUG("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started);
2017 if (bta_av_cb.sco_occupied)
2018 {
2019 bta_av_start_failed(p_scb, p_data);
2020 return;
2021 }
2022
2023 /* disallow role switch during streaming, only if we are the master role
2024 * i.e. allow role switch, if we are slave.
2025 * It would not hurt us, if the peer device wants us to be master */
2026 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2027 (cur_role == BTM_ROLE_MASTER) )
2028 {
2029 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2030 }
2031
2032 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2033
2034 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
2035 {
2036 p_scb->role |= BTA_AV_ROLE_START_INT;
2037 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2038
2039 AVDT_StartReq(&p_scb->avdt_handle, 1);
2040 }
2041 else if (p_scb->started)
2042 {
2043 p_scb->role |= BTA_AV_ROLE_START_INT;
2044 if ( p_scb->wait == 0 ) {
2045 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2046 notify_start_failed(p_scb);
2047 } else {
2048 bta_av_start_ok(p_scb, NULL);
2049 }
2050 }
2051 }
2052 APPL_TRACE_DEBUG("started %d role:x%x", p_scb->started, p_scb->role);
2053 }
2054
2055 /*******************************************************************************
2056 **
2057 ** Function bta_av_str_stopped
2058 **
2059 ** Description Stream stopped.
2060 **
2061 ** Returns void
2062 **
2063 *******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2064 void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2065 {
2066 tBTA_AV_SUSPEND suspend_rsp;
2067 UINT8 start = p_scb->started;
2068 BOOLEAN sus_evt = TRUE;
2069 BT_HDR *p_buf;
2070 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2071
2072 APPL_TRACE_ERROR("bta_av_str_stopped:audio_open_cnt=%d, p_data %x",
2073 bta_av_cb.audio_open_cnt, p_data);
2074
2075 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2076 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2077 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2078 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2079
2080 if (p_scb->co_started)
2081 {
2082 vendor_get_interface()->send_command(
2083 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
2084 (void*)&p_scb->l2c_cid);
2085 if (p_scb->offload_start_pending) {
2086 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
2087 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
2088 }
2089 p_scb->offload_start_pending = FALSE;
2090
2091 bta_av_stream_chg(p_scb, FALSE);
2092 p_scb->co_started = FALSE;
2093
2094 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2095 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2096 }
2097
2098 /* if q_info.a2d_list is not empty, drop it now */
2099 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
2100 while (!list_is_empty(p_scb->a2d_list))
2101 {
2102 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2103 list_remove(p_scb->a2d_list, p_buf);
2104 osi_free(p_buf);
2105 }
2106
2107 /* drop the audio buffers queued in L2CAP */
2108 if (p_data && p_data->api_stop.flush)
2109 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2110 }
2111
2112 suspend_rsp.chnl = p_scb->chnl;
2113 suspend_rsp.hndl = p_scb->hndl;
2114
2115 if (p_data && p_data->api_stop.suspend)
2116 {
2117 APPL_TRACE_DEBUG("suspending: %d, sup:%d", start, p_scb->suspend_sup);
2118 if ((start) && (p_scb->suspend_sup))
2119 {
2120 sus_evt = FALSE;
2121 p_scb->l2c_bufs = 0;
2122 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
2123 }
2124
2125 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/
2126 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST))
2127 {
2128 suspend_rsp.status = BTA_AV_SUCCESS;
2129 suspend_rsp.initiator = TRUE;
2130 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2131 }
2132 }
2133 else
2134 {
2135 suspend_rsp.status = BTA_AV_SUCCESS;
2136 suspend_rsp.initiator = TRUE;
2137 APPL_TRACE_EVENT("bta_av_str_stopped status %d", suspend_rsp.status);
2138
2139 /* send STOP_EVT event only if not in reconfiguring state */
2140 if (p_scb->state != BTA_AV_RCFG_SST)
2141 {
2142 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
2143 }
2144 }
2145 }
2146
2147 /*******************************************************************************
2148 **
2149 ** Function bta_av_reconfig
2150 **
2151 ** Description process the reconfigure request.
2152 ** save the parameter in control block and
2153 ** suspend, reconfigure or close the stream
2154 **
2155 ** Returns void
2156 **
2157 *******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2158 void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2159 {
2160 tAVDT_CFG *p_cfg;
2161 tBTA_AV_API_STOP stop;
2162 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig;
2163
2164 APPL_TRACE_DEBUG("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
2165 p_scb->recfg_sup, p_scb->suspend_sup,
2166 p_scb->rcfg_idx, p_scb->sep_info_idx);
2167
2168 p_scb->num_recfg = 0;
2169 /* store the new configuration in control block */
2170 if (p_scb->p_cap == NULL)
2171 p_scb->p_cap = (tAVDT_CFG *)osi_malloc(sizeof(tAVDT_CFG));
2172 p_cfg = p_scb->p_cap;
2173
2174 alarm_cancel(p_scb->avrc_ct_timer);
2175
2176 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
2177 p_cfg->num_protect = p_rcfg->num_protect;
2178 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
2179 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
2180 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2181 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2182
2183 /* if the requested index differs from the current one, we can only close/open */
2184 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
2185 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
2186 {
2187 if(p_scb->started)
2188 {
2189 stop.flush = FALSE;
2190 stop.suspend = TRUE;
2191 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
2192 }
2193 else
2194 {
2195 APPL_TRACE_DEBUG("Reconfig");
2196 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2197 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2198 }
2199 }
2200 else
2201 {
2202 /* close the stream */
2203 APPL_TRACE_DEBUG("close/open num_protect: %d", p_cfg->num_protect);
2204 if(p_scb->started)
2205 {
2206 bta_av_str_stopped(p_scb, NULL);
2207 p_scb->started = FALSE;
2208
2209 /* drop the buffers queued in L2CAP */
2210 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2211
2212 AVDT_CloseReq(p_scb->avdt_handle);
2213 }
2214 }
2215 }
2216
2217 /*******************************************************************************
2218 **
2219 ** Function bta_av_data_path
2220 **
2221 ** Description Handle stream data path.
2222 **
2223 ** Returns void
2224 **
2225 *******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2226 void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2227 {
2228 BT_HDR *p_buf = NULL;
2229 UINT32 data_len;
2230 UINT32 timestamp;
2231 BOOLEAN new_buf = FALSE;
2232 UINT8 m_pt = 0x60 | p_scb->codec_type;
2233 tAVDT_DATA_OPT_MASK opt;
2234 UNUSED(p_data);
2235
2236 if (p_scb->cong)
2237 {
2238 return;
2239 }
2240
2241 /*
2242 APPL_TRACE_ERROR("q: %d", p_scb->l2c_bufs);
2243 */
2244 //Always get the current number of bufs que'd up
2245 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2246
2247 if (!list_is_empty(p_scb->a2d_list)) {
2248 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2249 list_remove(p_scb->a2d_list, p_buf);
2250 /* use q_info.a2d data, read the timestamp */
2251 timestamp = *(UINT32 *)(p_buf + 1);
2252 }
2253 else
2254 {
2255 new_buf = TRUE;
2256 /* a2d_list empty, call co_data, dup data to other channels */
2257 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
2258 ×tamp);
2259
2260 if (p_buf)
2261 {
2262 /* use the offset area for the time stamp */
2263 *(UINT32 *)(p_buf + 1) = timestamp;
2264
2265 /* dup the data to other channels */
2266 bta_av_dup_audio_buf(p_scb, p_buf);
2267 }
2268 }
2269
2270 if(p_buf)
2271 {
2272 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
2273 {
2274 /* there's a buffer, just queue it to L2CAP */
2275 /* There's no need to increment it here, it is always read from L2CAP see above */
2276 /* p_scb->l2c_bufs++; */
2277 /*
2278 APPL_TRACE_ERROR("qw: %d", p_scb->l2c_bufs);
2279 */
2280
2281 /* opt is a bit mask, it could have several options set */
2282 opt = AVDT_DATA_OPT_NONE;
2283 if (p_scb->no_rtp_hdr)
2284 {
2285 opt |= AVDT_DATA_OPT_NO_RTP;
2286 }
2287
2288 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2289 p_scb->cong = TRUE;
2290 }
2291 else
2292 {
2293 /* there's a buffer, but L2CAP does not seem to be moving data */
2294 if(new_buf)
2295 {
2296 /* just got this buffer from co_data,
2297 * put it in queue */
2298 list_append(p_scb->a2d_list, p_buf);
2299 }
2300 else
2301 {
2302 /* just dequeue it from the a2d_list */
2303 if (list_length(p_scb->a2d_list) < 3) {
2304 /* put it back to the queue */
2305 list_prepend(p_scb->a2d_list, p_buf);
2306 }
2307 else
2308 {
2309 /* too many buffers in a2d_list, drop it. */
2310 bta_av_co_audio_drop(p_scb->hndl);
2311 osi_free(p_buf);
2312 }
2313 }
2314 }
2315 }
2316 }
2317
2318 /*******************************************************************************
2319 **
2320 ** Function bta_av_start_ok
2321 **
2322 ** Description Stream started.
2323 **
2324 ** Returns void
2325 **
2326 *******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2327 void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2328 {
2329 tBTA_AV_START start;
2330 tBTA_AV_API_STOP stop;
2331 BOOLEAN initiator = FALSE;
2332 BOOLEAN suspend = FALSE;
2333 UINT16 flush_to;
2334 UINT8 new_role = p_scb->role;
2335 BT_HDR hdr;
2336 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2337 UINT8 cur_role;
2338
2339 APPL_TRACE_DEBUG("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
2340
2341 p_scb->started = TRUE;
2342 if (p_scb->sco_suspend)
2343 {
2344 p_scb->sco_suspend = FALSE;
2345 }
2346
2347 if (new_role & BTA_AV_ROLE_START_INT)
2348 initiator = TRUE;
2349
2350 /* for A2DP SINK we do not send get_caps */
2351 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle)
2352 &&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
2353 {
2354 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2355 APPL_TRACE_DEBUG(" Local SEP type is SNK new wait is 0x%x",p_scb->wait);
2356 }
2357 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
2358 {
2359 /* role switch has failed */
2360 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2361 p_data = (tBTA_AV_DATA *)&hdr;
2362 hdr.offset = BTA_AV_RS_FAIL;
2363 }
2364 APPL_TRACE_DEBUG("wait:x%x", p_scb->wait);
2365
2366 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
2367 {
2368 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2369 if (p_data->hdr.offset == BTA_AV_RS_FAIL)
2370 {
2371 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2372 start.chnl = p_scb->chnl;
2373 start.status = BTA_AV_FAIL_ROLE;
2374 start.hndl = p_scb->hndl;
2375 start.initiator = initiator;
2376 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2377 return;
2378 }
2379 }
2380
2381 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2382 p_scb->q_tag = BTA_AV_Q_TAG_START;
2383 else
2384 {
2385 /* The wait flag may be set here while we are already master on the link */
2386 /* this could happen if a role switch complete event occurred during reconfig */
2387 /* if we are now master on the link, there is no need to wait for the role switch, */
2388 /* complete anymore so we can clear the wait for role switch flag */
2389 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2390 }
2391
2392 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
2393 {
2394 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2395 p_scb->q_tag = BTA_AV_Q_TAG_START;
2396 }
2397
2398 if (p_scb->wait)
2399 {
2400 APPL_TRACE_ERROR("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
2401 /* Clear first bit of p_scb->wait and not to return from this point else
2402 * HAL layer gets blocked. And if there is delay in Get Capability response as
2403 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is not called
2404 * again from bta_av_save_caps.
2405 */
2406 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2407 }
2408
2409 /* tell role manager to check M/S role */
2410 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2411
2412 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2413
2414 if(p_scb->media_type == AVDT_MEDIA_AUDIO)
2415 {
2416 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2417 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
2418 * If the code were to be re-arranged for some reasons, this number may need to be changed
2419 */
2420 p_scb->co_started = bta_av_cb.audio_open_cnt;
2421 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2422 }
2423 else
2424 {
2425 flush_to = p_bta_av_cfg->video_flush_to;
2426 }
2427 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
2428
2429 /* clear the congestion flag */
2430 p_scb->cong = FALSE;
2431
2432 if (new_role & BTA_AV_ROLE_START_INT)
2433 {
2434 new_role &= ~BTA_AV_ROLE_START_INT;
2435 }
2436 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
2437 {
2438 suspend = TRUE;
2439 }
2440
2441 if (!suspend)
2442 {
2443 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2444 bta_av_stream_chg(p_scb, TRUE);
2445 }
2446
2447 {
2448 /* If sink starts stream, disable sniff mode here */
2449 if (!initiator)
2450 {
2451 /* If souce is the master role, disable role switch during streaming.
2452 * Otherwise allow role switch, if source is slave.
2453 * Because it would not hurt source, if the peer device wants source to be master */
2454 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2455 (cur_role == BTM_ROLE_MASTER) )
2456 {
2457 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2458 }
2459
2460 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2461 }
2462
2463 p_scb->role = new_role;
2464 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2465 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2466
2467 p_scb->no_rtp_hdr = FALSE;
2468 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr);
2469 p_scb->co_started = TRUE;
2470
2471 APPL_TRACE_DEBUG("bta_av_start_ok suspending: %d, role:x%x, init %d",
2472 suspend, p_scb->role, initiator);
2473
2474 start.suspending = suspend;
2475 start.initiator = initiator;
2476 start.chnl = p_scb->chnl;
2477 start.status = BTA_AV_SUCCESS;
2478 start.hndl = p_scb->hndl;
2479 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2480
2481 if(suspend)
2482 {
2483 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2484 p_scb->cong = TRUE; /* do not allow the media data to go through */
2485 /* do not duplicate the media packets to this channel */
2486 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2487 p_scb->co_started = FALSE;
2488 stop.flush = FALSE;
2489 stop.suspend = TRUE;
2490 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
2491 }
2492 }
2493 }
2494
2495 /*******************************************************************************
2496 **
2497 ** Function bta_av_start_failed
2498 **
2499 ** Description Stream start failed.
2500 **
2501 ** Returns void
2502 **
2503 *******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2504 void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2505 {
2506 UNUSED(p_data);
2507
2508 if(p_scb->started == FALSE && p_scb->co_started == FALSE)
2509 {
2510 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2511 notify_start_failed(p_scb);
2512 }
2513
2514 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
2515 p_scb->sco_suspend = FALSE;
2516 }
2517
2518 /*******************************************************************************
2519 **
2520 ** Function bta_av_str_closed
2521 **
2522 ** Description Stream closed.
2523 **
2524 ** Returns void
2525 **
2526 *******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2527 void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2528 {
2529 tBTA_AV data;
2530 tBTA_AV_EVT event;
2531 UINT16 mtu;
2532 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2533
2534 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2535 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2536 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2537 if (bta_av_cb.audio_open_cnt <= 1)
2538 {
2539 /* last connection - restore the allow switch flag */
2540 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2541 }
2542
2543 if (p_scb->open_status)
2544 {
2545 /* must be failure when opening the stream */
2546 bdcpy(data.open.bd_addr, p_scb->peer_addr);
2547 data.open.status = p_scb->open_status;
2548 data.open.chnl = p_scb->chnl;
2549 data.open.hndl = p_scb->hndl;
2550
2551 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
2552 data.open.sep = AVDT_TSEP_SNK;
2553 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
2554 data.open.sep = AVDT_TSEP_SRC;
2555
2556 event = BTA_AV_OPEN_EVT;
2557 p_scb->open_status = BTA_AV_SUCCESS;
2558
2559 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2560 bta_av_cleanup(p_scb, p_data);
2561 (*bta_av_cb.p_cback)(event, &data);
2562 }
2563 else
2564 {
2565 /* do stop if we were started */
2566 if (p_scb->co_started)
2567 {
2568 bta_av_str_stopped(p_scb, NULL);
2569 }
2570
2571 /* Update common mtu shared by remaining connectons */
2572 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
2573
2574 {
2575 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
2576 data.close.chnl = p_scb->chnl;
2577 data.close.hndl = p_scb->hndl;
2578 event = BTA_AV_CLOSE_EVT;
2579
2580 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2581 bta_av_cleanup(p_scb, p_data);
2582 (*bta_av_cb.p_cback)(event, &data);
2583 }
2584 }
2585 }
2586
2587 /*******************************************************************************
2588 **
2589 ** Function bta_av_clr_cong
2590 **
2591 ** Description Clear stream congestion flag.
2592 **
2593 ** Returns void
2594 **
2595 *******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2596 void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2597 {
2598 UNUSED(p_data);
2599
2600 if(p_scb->co_started)
2601 p_scb->cong = FALSE;
2602 }
2603
2604 /*******************************************************************************
2605 **
2606 ** Function bta_av_suspend_cfm
2607 **
2608 ** Description process the suspend response
2609 **
2610 ** Returns void
2611 **
2612 *******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2613 void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2614 {
2615 tBTA_AV_SUSPEND suspend_rsp;
2616 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2617 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2618
2619 APPL_TRACE_DEBUG ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
2620 bta_av_cb.audio_open_cnt, err_code);
2621
2622 if (p_scb->started == FALSE)
2623 {
2624 /* handle the condition where there is a collision of SUSPEND req from either side
2625 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2626 */
2627 APPL_TRACE_WARNING("bta_av_suspend_cfm: already suspended, ignore, err_code %d",
2628 err_code);
2629 return;
2630 }
2631
2632 suspend_rsp.status = BTA_AV_SUCCESS;
2633 if (err_code && (err_code != AVDT_ERR_BAD_STATE))
2634 {
2635 /* Disable suspend feature only with explicit rejection(not with timeout) */
2636 if (err_code != AVDT_ERR_TIMEOUT)
2637 {
2638 p_scb->suspend_sup = FALSE;
2639 }
2640 suspend_rsp.status = BTA_AV_FAIL;
2641
2642 APPL_TRACE_ERROR ("bta_av_suspend_cfm: suspend failed, closing connection");
2643
2644 /* SUSPEND failed. Close connection. */
2645 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2646 }
2647 else
2648 {
2649 /* only set started to FALSE when suspend is successful */
2650 p_scb->started = FALSE;
2651 }
2652
2653 if (p_scb->role & BTA_AV_ROLE_SUSPEND)
2654 {
2655 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2656 p_scb->cong = FALSE;
2657 }
2658
2659 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2660 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2661 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2662 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2663
2664 /* in case that we received suspend_ind, we may need to call co_stop here */
2665 if(p_scb->co_started)
2666 {
2667 vendor_get_interface()->send_command(
2668 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
2669 (void*)&p_scb->l2c_cid);
2670 if (p_scb->offload_start_pending) {
2671 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
2672 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
2673 }
2674 p_scb->offload_start_pending = FALSE;
2675
2676 bta_av_stream_chg(p_scb, FALSE);
2677
2678 {
2679 p_scb->co_started = FALSE;
2680 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2681 }
2682 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2683 }
2684
2685 {
2686 suspend_rsp.chnl = p_scb->chnl;
2687 suspend_rsp.hndl = p_scb->hndl;
2688 suspend_rsp.initiator = p_data->str_msg.initiator;
2689 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2690 }
2691 }
2692
2693 /*******************************************************************************
2694 **
2695 ** Function bta_av_rcfg_str_ok
2696 **
2697 ** Description report reconfigure successful
2698 **
2699 ** Returns void
2700 **
2701 *******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2702 void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2703 {
2704 tBTA_AV_RECONFIG evt;
2705 UNUSED(p_data);
2706
2707 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2708 APPL_TRACE_DEBUG("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
2709
2710 /* rc listen */
2711 bta_av_st_rc_timer(p_scb, NULL);
2712 osi_free_and_reset((void **)&p_scb->p_cap);
2713
2714 /* No need to keep the role bits once reconfig is done. */
2715 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2716 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2717 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2718
2719 {
2720 /* reconfigure success */
2721 evt.status = BTA_AV_SUCCESS;
2722 evt.chnl = p_scb->chnl;
2723 evt.hndl = p_scb->hndl;
2724 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2725 }
2726 }
2727
2728 /*******************************************************************************
2729 **
2730 ** Function bta_av_rcfg_failed
2731 **
2732 ** Description process reconfigure failed
2733 **
2734 ** Returns void
2735 **
2736 *******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2737 void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2738 {
2739 tBTA_AV_RECONFIG evt;
2740
2741 APPL_TRACE_DEBUG("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
2742 p_scb->num_recfg, bta_av_cb.conn_lcb);
2743 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2744 {
2745 bta_av_cco_close(p_scb, p_data);
2746 /* report failure */
2747 evt.status = BTA_AV_FAIL_STREAM;
2748 evt.chnl = p_scb->chnl;
2749 evt.hndl = p_scb->hndl;
2750 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2751 /* go to closing state */
2752 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2753 }
2754 else
2755 {
2756 /* open failed. try again */
2757 p_scb->num_recfg++;
2758 if(bta_av_cb.conn_lcb)
2759 {
2760 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
2761 }
2762 else
2763 {
2764 bta_av_connect_req(p_scb, NULL);
2765 }
2766 }
2767 }
2768
2769 /*******************************************************************************
2770 **
2771 ** Function bta_av_rcfg_connect
2772 **
2773 ** Description stream closed. reconnect the stream
2774 **
2775 ** Returns void
2776 **
2777 *******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2778 void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2779 {
2780 UNUSED(p_data);
2781
2782 p_scb->cong = FALSE;
2783 p_scb->num_recfg++;
2784 APPL_TRACE_DEBUG("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
2785 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2786 {
2787 /* let bta_av_rcfg_failed report fail */
2788 bta_av_rcfg_failed(p_scb, NULL);
2789 }
2790 else
2791 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2792 }
2793
2794 /*******************************************************************************
2795 **
2796 ** Function bta_av_rcfg_discntd
2797 **
2798 ** Description AVDT disconnected. reconnect the stream
2799 **
2800 ** Returns void
2801 **
2802 *******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2803 void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2804 {
2805 tBTA_AV_RECONFIG evt;
2806 UNUSED(p_data);
2807
2808 APPL_TRACE_DEBUG("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
2809 p_scb->num_recfg++;
2810 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2811 {
2812 /* report failure */
2813 evt.status = BTA_AV_FAIL_STREAM;
2814 evt.chnl = p_scb->chnl;
2815 evt.hndl = p_scb->hndl;
2816 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2817 /* report close event & go to init state */
2818 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2819 }
2820 else
2821 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2822 }
2823
2824 /*******************************************************************************
2825 **
2826 ** Function bta_av_suspend_cont
2827 **
2828 ** Description received the suspend response.
2829 ** continue to reconfigure the stream
2830 **
2831 ** Returns void
2832 **
2833 *******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2834 void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2835 {
2836 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2837 tBTA_AV_RECONFIG evt;
2838
2839 p_scb->started = FALSE;
2840 p_scb->cong = FALSE;
2841 if (err_code)
2842 {
2843 if (AVDT_ERR_CONNECT == err_code)
2844 {
2845 /* report failure */
2846 evt.status = BTA_AV_FAIL;
2847 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2848 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2849 }
2850 else
2851 {
2852 APPL_TRACE_ERROR("suspend rejected, try close");
2853 /* Disable suspend feature only with explicit rejection(not with timeout) */
2854 if (err_code != AVDT_ERR_TIMEOUT)
2855 {
2856 p_scb->suspend_sup = FALSE;
2857 }
2858 /* drop the buffers queued in L2CAP */
2859 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2860
2861 AVDT_CloseReq(p_scb->avdt_handle);
2862 }
2863 }
2864 else
2865 {
2866 APPL_TRACE_DEBUG("bta_av_suspend_cont calling AVDT_ReconfigReq");
2867 /* reconfig the stream */
2868
2869 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2870 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2871 }
2872 }
2873
2874 /*******************************************************************************
2875 **
2876 ** Function bta_av_rcfg_cfm
2877 **
2878 ** Description if reconfigure is successful, report the event
2879 ** otherwise, close the stream.
2880 **
2881 ** Returns void
2882 **
2883 *******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2884 void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2885 {
2886 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2887
2888 /*
2889 APPL_TRACE_DEBUG("bta_av_rcfg_cfm");
2890 */
2891 if (err_code)
2892 {
2893 APPL_TRACE_ERROR("reconfig rejected, try close");
2894 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */
2895 if (err_code != AVDT_ERR_TIMEOUT)
2896 {
2897 p_scb->recfg_sup = FALSE;
2898 }
2899 /* started flag is FALSE when reconfigure command is sent */
2900 /* drop the buffers queued in L2CAP */
2901 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2902 AVDT_CloseReq(p_scb->avdt_handle);
2903 }
2904 else
2905 {
2906 /* update the codec info after rcfg cfm */
2907 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE);
2908 /* take the SSM back to OPEN state */
2909 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2910 }
2911 }
2912
2913 /*******************************************************************************
2914 **
2915 ** Function bta_av_rcfg_open
2916 **
2917 ** Description AVDT is connected. open the stream with the new configuration
2918 **
2919 ** Returns void
2920 **
2921 *******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2922 void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2923 {
2924 UNUSED(p_data);
2925
2926 APPL_TRACE_DEBUG("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
2927
2928 if (p_scb->num_disc_snks == 0)
2929 {
2930 /* Need to update call-out module so that it will be ready for discover */
2931 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2932
2933 /* send avdtp discover request */
2934 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
2935 }
2936 else
2937 {
2938 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
2939 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
2940 /* we may choose to use a different SEP at reconfig.
2941 * adjust the sep_idx now */
2942 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2943
2944 /* open the stream with the new config */
2945 p_scb->sep_info_idx = p_scb->rcfg_idx;
2946 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
2947 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
2948 }
2949
2950 }
2951
2952 /*******************************************************************************
2953 **
2954 ** Function bta_av_security_rej
2955 **
2956 ** Description Send an AVDTP security reject.
2957 **
2958 ** Returns void
2959 **
2960 *******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2961 void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2962 {
2963 UNUSED(p_data);
2964
2965 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2966 NULL, 0);
2967 }
2968
2969 /*******************************************************************************
2970 **
2971 ** Function bta_av_chk_2nd_start
2972 **
2973 ** Description check if this is 2nd stream and if it needs to be started.
2974 ** This function needs to be kept very similar to bta_av_chk_start
2975 **
2976 ** Returns void
2977 **
2978 *******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2979 void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2980 {
2981 tBTA_AV_SCB *p_scbi;
2982 int i;
2983 BOOLEAN new_started = FALSE;
2984 UNUSED(p_data);
2985
2986 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
2987 {
2988 /* more than one audio channel is connected */
2989 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
2990 {
2991 /* this channel does not need to be reconfigured.
2992 * if there is other channel streaming, start the stream now */
2993 for(i=0; i<BTA_AV_NUM_STRS; i++)
2994 {
2995 p_scbi = bta_av_cb.p_scb[i];
2996 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
2997 {
2998 if (!new_started)
2999 {
3000 /* start the new stream */
3001 new_started = TRUE;
3002 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
3003 }
3004 /* may need to update the flush timeout of this already started stream */
3005 if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
3006 {
3007 p_scbi->co_started = bta_av_cb.audio_open_cnt;
3008 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
3009 }
3010 }
3011 }
3012 }
3013 }
3014 }
3015
3016 /*******************************************************************************
3017 **
3018 ** Function bta_av_open_rc
3019 **
3020 ** Description Send a message to main SM to open RC channel.
3021 **
3022 ** Returns void
3023 **
3024 *******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3025 void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3026 {
3027 tBTA_AV_START start;
3028
3029 APPL_TRACE_DEBUG("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role);
3030 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
3031 {
3032 /* waiting for role switch for some reason & the timer expires */
3033 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
3034 {
3035 APPL_TRACE_ERROR ("failed to start streaming for role management reasons!!");
3036 alarm_cancel(p_scb->avrc_ct_timer);
3037 start.chnl = p_scb->chnl;
3038 start.status = BTA_AV_FAIL_ROLE;
3039 start.initiator = TRUE;
3040 start.hndl = p_scb->hndl;
3041 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
3042 bta_av_cb.rs_idx = 0;
3043 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
3044 }
3045 else
3046 {
3047 /* role switch is done. continue to start streaming */
3048 bta_av_cb.rs_idx = 0;
3049 p_data->hdr.offset = BTA_AV_RS_OK;
3050 bta_av_start_ok (p_scb, p_data);
3051 }
3052 return;
3053 }
3054
3055 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
3056 {
3057 if(bta_av_cb.disc)
3058 {
3059 /* AVRC discover db is in use */
3060 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
3061 {
3062 /* AVRC channel is not connected. delay a little bit */
3063 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
3064 bta_sys_start_timer(p_scb->avrc_ct_timer,
3065 BTA_AV_RC_DISC_TIME_VAL,
3066 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
3067 } else {
3068 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
3069 }
3070 }
3071 }
3072 else
3073 {
3074 /* use main SM for AVRC SDP activities */
3075 bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
3076 }
3077 }
3078 else
3079 {
3080 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
3081 {
3082 /* the open API said that this handle does not want a RC connection.
3083 * disconnect it now */
3084 AVRC_Close(p_scb->rc_handle);
3085 }
3086 }
3087 }
3088
3089 /*******************************************************************************
3090 **
3091 ** Function bta_av_open_at_inc
3092 **
3093 ** Description This function is called if API open is called by application
3094 ** while state-machine is at incoming state.
3095 **
3096 ** Returns void
3097 **
3098 *******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3099 void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3100 {
3101 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
3102
3103 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
3104 {
3105 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
3106
3107 /* API open will be handled at timeout if SNK did not start signalling. */
3108 /* API open will be ignored if SNK starts signalling. */
3109 }
3110 else
3111 {
3112 /* SNK did not start signalling, API was called N seconds timeout. */
3113 /* We need to switch to INIT state and start opening connection. */
3114 p_scb->coll_mask = 0;
3115 bta_av_set_scb_sst_init(p_scb);
3116
3117 tBTA_AV_API_OPEN *p_buf =
3118 (tBTA_AV_API_OPEN *)osi_malloc(sizeof(tBTA_AV_API_OPEN));
3119 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
3120 p_scb->skip_sdp = TRUE;
3121 bta_sys_sendmsg(p_buf);
3122 }
3123 }
3124
3125 /*******************************************************************************
3126 **
3127 ** Function bta_av_offload_req
3128 **
3129 ** Description This function is called if application requests offload of
3130 ** a2dp audio.
3131 **
3132 ** Returns void
3133 **
3134 *******************************************************************************/
bta_av_offload_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3135 void bta_av_offload_req(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3136 {
3137 tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
3138 UINT16 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
3139
3140 APPL_TRACE_DEBUG("%s stream %s, audio channels open %d", __func__,
3141 p_scb->started ? "STARTED" : "STOPPED", bta_av_cb.audio_open_cnt);
3142
3143 /* Check if stream has already been started. */
3144 /* Support offload if only one audio source stream is open. */
3145 if (p_scb->started != TRUE) {
3146 status = BTA_AV_FAIL_STREAM;
3147
3148 } else if (bta_av_cb.audio_open_cnt == 1 &&
3149 p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
3150 p_scb->chnl == BTA_AV_CHNL_AUDIO) {
3151
3152 bt_vendor_op_a2dp_offload_t a2dp_offload_start;
3153
3154 if (L2CA_GetConnectionConfig(p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
3155 &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
3156
3157 APPL_TRACE_DEBUG("%s l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle 0x%02X", __func__,
3158 a2dp_offload_start.acl_data_size, p_scb->l2c_cid,
3159 a2dp_offload_start.remote_cid, a2dp_offload_start.lm_handle);
3160
3161 a2dp_offload_start.bta_av_handle = p_scb->hndl;
3162 a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
3163 a2dp_offload_start.stream_mtu = (mtu < p_scb->stream_mtu) ? mtu : p_scb->stream_mtu;
3164 a2dp_offload_start.local_cid = p_scb->l2c_cid;
3165 a2dp_offload_start.is_flushable = TRUE;
3166 a2dp_offload_start.stream_source = ((UINT32)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
3167
3168 memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
3169 sizeof(a2dp_offload_start.codec_info));
3170
3171 if (!vendor_get_interface()->send_command(
3172 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
3173 &a2dp_offload_start)) {
3174 status = BTA_AV_SUCCESS;
3175 p_scb->offload_start_pending = TRUE;
3176 }
3177 }
3178 }
3179
3180 if (status != BTA_AV_SUCCESS)
3181 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
3182 }
3183
3184 /*******************************************************************************
3185 **
3186 ** Function bta_av_offload_rsp
3187 **
3188 ** Description This function is called when the vendor lib responds to
3189 ** BT_VND_OP_A2DP_OFFLOAD_START.
3190 **
3191 ** Returns void
3192 **
3193 *******************************************************************************/
bta_av_offload_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3194 void bta_av_offload_rsp(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3195 {
3196 tBTA_AV_STATUS status = p_data->api_status_rsp.status;
3197
3198 APPL_TRACE_DEBUG("%s stream %s status %s", __func__,
3199 p_scb->started ? "STARTED" : "STOPPED",
3200 status ? "FAIL" : "SUCCESS");
3201
3202 /* Check if stream has already been started. */
3203 if (status == BTA_AV_SUCCESS && p_scb->started != TRUE) {
3204 status = BTA_AV_FAIL_STREAM;
3205 }
3206
3207 p_scb->offload_start_pending = FALSE;
3208 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
3209 }
3210
3211 #endif /* BTA_AV_INCLUDED */
3212