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("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask);
1571 return;
1572 }
1573
1574 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
1575 }
1576
1577 /*******************************************************************************
1578 **
1579 ** Function bta_av_sdp_failed
1580 **
1581 ** Description Service discovery failed.
1582 **
1583 ** Returns void
1584 **
1585 *******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1586 void bta_av_sdp_failed(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1587 {
1588 if (!p_scb->open_status)
1589 p_scb->open_status = BTA_AV_FAIL_SDP;
1590
1591 p_scb->sdp_discovery_started = FALSE;
1592 bta_av_str_closed(p_scb, p_data);
1593 }
1594
1595 /*******************************************************************************
1596 **
1597 ** Function bta_av_disc_results
1598 **
1599 ** Description Handle the AVDTP discover results. Search through the
1600 ** results and find the first available stream, and get
1601 ** its capabilities.
1602 **
1603 ** Returns void
1604 **
1605 *******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1606 void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1607 {
1608 UINT8 num_snks = 0, num_srcs =0, i;
1609 /* our uuid in case we initiate connection */
1610 UINT16 uuid_int = p_scb->uuid_int;
1611
1612 APPL_TRACE_DEBUG(" initiator UUID 0x%x", uuid_int);
1613 /* store number of stream endpoints returned */
1614 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1615
1616 for (i = 0; i < p_scb->num_seps; i++)
1617 {
1618 /* steam not in use, is a sink, and is audio */
1619 if ((p_scb->sep_info[i].in_use == FALSE) &&
1620 (p_scb->sep_info[i].media_type == p_scb->media_type))
1621 {
1622 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1623 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1624 num_snks++;
1625
1626 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1627 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1628 num_srcs++;
1629
1630 }
1631 }
1632
1633 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, num_srcs, p_scb->peer_addr,
1634 uuid_int);
1635 p_scb->num_disc_snks = num_snks;
1636 p_scb->num_disc_srcs = num_srcs;
1637
1638 /* if we got any */
1639 if (p_scb->num_seps > 0)
1640 {
1641 /* initialize index into discovery results */
1642 p_scb->sep_info_idx = 0;
1643
1644 /* get the capabilities of the first available stream */
1645 bta_av_next_getcap(p_scb, p_data);
1646 }
1647 /* else we got discover response but with no streams; we're done */
1648 else
1649 {
1650 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1651 }
1652 }
1653
1654 /*******************************************************************************
1655 **
1656 ** Function bta_av_disc_res_as_acp
1657 **
1658 ** Description Handle the AVDTP discover results. Search through the
1659 ** results and find the first available stream, and get
1660 ** its capabilities.
1661 **
1662 ** Returns void
1663 **
1664 *******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1665 void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1666 {
1667 UINT8 num_snks = 0, i;
1668
1669 /* store number of stream endpoints returned */
1670 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1671
1672
1673
1674 for (i = 0; i < p_scb->num_seps; i++)
1675 {
1676 /* steam is a sink, and is audio */
1677 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1678 (p_scb->sep_info[i].media_type == p_scb->media_type))
1679 {
1680 p_scb->sep_info[i].in_use = FALSE;
1681 num_snks++;
1682 }
1683 }
1684 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, 0, p_scb->peer_addr,
1685 UUID_SERVCLASS_AUDIO_SOURCE);
1686 p_scb->num_disc_snks = num_snks;
1687 p_scb->num_disc_srcs = 0;
1688
1689 /* if we got any */
1690 if (p_scb->num_seps > 0)
1691 {
1692 /* initialize index into discovery results */
1693 p_scb->sep_info_idx = 0;
1694
1695 /* get the capabilities of the first available stream */
1696 bta_av_next_getcap(p_scb, p_data);
1697 }
1698 /* else we got discover response but with no streams; we're done */
1699 else
1700 {
1701 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1702 }
1703 }
1704
1705 /*******************************************************************************
1706 **
1707 ** Function bta_av_save_caps
1708 **
1709 ** Description report the SNK SEP capabilities to application
1710 **
1711 ** Returns void
1712 **
1713 *******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1714 void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1715 {
1716 tAVDT_CFG cfg;
1717 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1718 UINT8 old_wait = p_scb->wait;
1719 BOOLEAN getcap_done = FALSE;
1720
1721 APPL_TRACE_DEBUG("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
1722 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1723 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
1724 /* let application know the capability of the SNK */
1725 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
1726 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1727 &cfg.num_protect, cfg.protect_info);
1728
1729 p_scb->sep_info_idx++;
1730 if(p_scb->num_seps > p_scb->sep_info_idx)
1731 {
1732 /* Some devices have seps at the end of the discover list, which is not */
1733 /* matching media type(video not audio). */
1734 /* In this case, we are done with getcap without sending another */
1735 /* request to AVDT. */
1736 if (!bta_av_next_getcap(p_scb, p_data))
1737 getcap_done = TRUE;
1738 }
1739 else
1740 getcap_done = TRUE;
1741
1742 if (getcap_done)
1743 {
1744 /* we are done getting capabilities. restore the p_cb->sep_info_idx */
1745 p_scb->sep_info_idx = 0;
1746 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
1747 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
1748 {
1749 bta_av_start_ok (p_scb, NULL);
1750 }
1751 }
1752 }
1753
1754 /*******************************************************************************
1755 **
1756 ** Function bta_av_set_use_rc
1757 **
1758 ** Description set to use AVRC for this stream control block.
1759 **
1760 ** Returns void
1761 **
1762 *******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1763 void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1764 {
1765 UNUSED(p_data);
1766
1767 p_scb->use_rc = TRUE;
1768 }
1769
1770 /*******************************************************************************
1771 **
1772 ** Function bta_av_cco_close
1773 **
1774 ** Description call close call-out function.
1775 **
1776 ** Returns void
1777 **
1778 *******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1779 void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1780 {
1781 UINT16 mtu;
1782 UNUSED(p_data);
1783
1784 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
1785
1786 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
1787 }
1788
1789 /*******************************************************************************
1790 **
1791 ** Function bta_av_open_failed
1792 **
1793 ** Description Failed to open an AVDT stream
1794 **
1795 ** Returns void
1796 **
1797 *******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1798 void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1799 {
1800
1801 BOOLEAN is_av_opened = FALSE;
1802 tBTA_AV_SCB * p_opened_scb = NULL;
1803 UINT8 idx;
1804 tBTA_AV_OPEN open;
1805
1806 APPL_TRACE_DEBUG("bta_av_open_failed");
1807 p_scb->open_status = BTA_AV_FAIL_STREAM;
1808 bta_av_cco_close(p_scb, p_data);
1809
1810 /* check whether there is already an opened audio or video connection with the same device */
1811 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ )
1812 {
1813 p_opened_scb = bta_av_cb.p_scb[idx];
1814 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) )
1815 is_av_opened = TRUE;
1816
1817 }
1818
1819 /* if there is already an active AV connnection with the same bd_addr,
1820 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */
1821 if (is_av_opened == TRUE)
1822 {
1823 bdcpy(open.bd_addr, p_scb->peer_addr);
1824 open.chnl = p_scb->chnl;
1825 open.hndl = p_scb->hndl;
1826 open.status = BTA_AV_FAIL_GET_CAP;
1827 open.starting = bta_av_chk_start(p_scb);
1828 open.edr = 0;
1829 /* set the state back to initial state */
1830 bta_av_set_scb_sst_init(p_scb);
1831
1832 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
1833 open.sep = AVDT_TSEP_SNK;
1834 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
1835 open.sep = AVDT_TSEP_SRC;
1836
1837 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1838
1839 }
1840 else
1841 {
1842 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1843 }
1844 }
1845
1846
1847 /*******************************************************************************
1848 **
1849 ** Function bta_av_getcap_results
1850 **
1851 ** Description Handle the AVDTP get capabilities results. Check the codec
1852 ** type and see if it matches ours. If it does not, get the
1853 ** capabilities of the next stream, if any.
1854 **
1855 ** Returns void
1856 **
1857 *******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1858 void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1859 {
1860 tAVDT_CFG cfg;
1861 UINT8 media_type;
1862 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1863 UINT16 uuid_int; /* UUID for which connection was initiatied */
1864
1865 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1866 cfg.num_codec = 1;
1867 cfg.num_protect = p_scb->p_cap->num_protect;
1868 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
1869 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
1870 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
1871
1872 APPL_TRACE_DEBUG("num_codec %d", p_scb->p_cap->num_codec);
1873 APPL_TRACE_DEBUG("media type x%x, x%x", media_type, p_scb->media_type);
1874 #if AVDT_MULTIPLEXING == TRUE
1875 APPL_TRACE_DEBUG("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
1876 #endif
1877
1878 /* if codec present and we get a codec configuration */
1879 if ((p_scb->p_cap->num_codec != 0) &&
1880 (media_type == p_scb->media_type) &&
1881 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
1882 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1883 &cfg.num_protect, cfg.protect_info) == 0))
1884 {
1885 #if AVDT_MULTIPLEXING == TRUE
1886 cfg.mux_mask &= p_scb->p_cap->mux_mask;
1887 APPL_TRACE_DEBUG("mux_mask used x%x", cfg.mux_mask);
1888 #endif
1889 /* save copy of codec type and configuration */
1890 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
1891 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
1892
1893 uuid_int = p_scb->uuid_int;
1894 APPL_TRACE_DEBUG(" initiator UUID = 0x%x ", uuid_int);
1895 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1896 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1897 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1898 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1899
1900 /* use only the services peer supports */
1901 cfg.psc_mask &= p_scb->p_cap->psc_mask;
1902 p_scb->cur_psc_mask = cfg.psc_mask;
1903
1904 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1905 (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL))
1906 {
1907 APPL_TRACE_DEBUG("%s Configure Decoder for Sink Connection.", __func__);
1908 tBTA_AV_MEDIA av_sink_codec_info;
1909 memcpy(av_sink_codec_info.avk_config.bd_addr,p_scb->peer_addr,sizeof(BD_ADDR));
1910 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1911 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
1912 &av_sink_codec_info);
1913 }
1914
1915 if ((uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) &&
1916 (cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] > SBC_MAX_BITPOOL))
1917 {
1918 APPL_TRACE_WARNING("%s max bitpool length received for SBC is out of range."
1919 "Clamping the codec bitpool configuration from %d to %d.", __func__,
1920 cfg.codec_info[SBC_MAX_BITPOOL_OFFSET], SBC_MAX_BITPOOL);
1921 cfg.codec_info[SBC_MAX_BITPOOL_OFFSET] = SBC_MAX_BITPOOL;
1922 }
1923
1924 /* open the stream */
1925 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
1926 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1927
1928 if (!bta_av_is_rcfg_sst(p_scb))
1929 {
1930 /* free capabilities buffer */
1931 osi_free_and_reset((void **)&p_scb->p_cap);
1932 }
1933 }
1934 else
1935 {
1936 /* try the next stream, if any */
1937 p_scb->sep_info_idx++;
1938 bta_av_next_getcap(p_scb, p_data);
1939 }
1940
1941 }
1942
1943 /*******************************************************************************
1944 **
1945 ** Function bta_av_setconfig_rej
1946 **
1947 ** Description Send AVDTP set config reject.
1948 **
1949 ** Returns void
1950 **
1951 *******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1952 void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1953 {
1954 tBTA_AV_REJECT reject;
1955 UINT8 avdt_handle = p_data->ci_setconfig.avdt_handle;
1956
1957 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1958 APPL_TRACE_DEBUG("bta_av_setconfig_rej: sep_idx: %d",p_scb->sep_idx);
1959 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1960
1961 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
1962 reject.hndl = p_scb->hndl;
1963 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
1964 }
1965
1966 /*******************************************************************************
1967 **
1968 ** Function bta_av_discover_req
1969 **
1970 ** Description Send an AVDTP discover request to the peer.
1971 **
1972 ** Returns void
1973 **
1974 *******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1975 void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1976 {
1977 UNUSED(p_data);
1978
1979 /* send avdtp discover request */
1980
1981 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
1982 }
1983
1984 /*******************************************************************************
1985 **
1986 ** Function bta_av_conn_failed
1987 **
1988 ** Description AVDTP connection failed.
1989 **
1990 ** Returns void
1991 **
1992 *******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1993 void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1994 {
1995 p_scb->open_status = BTA_AV_FAIL_STREAM;
1996 bta_av_str_closed(p_scb, p_data);
1997 }
1998
1999 /*******************************************************************************
2000 **
2001 ** Function bta_av_do_start
2002 **
2003 ** Description Start stream.
2004 **
2005 ** Returns void
2006 **
2007 *******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2008 void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2009 {
2010 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2011 UINT8 cur_role;
2012
2013 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);
2014 if (bta_av_cb.sco_occupied)
2015 {
2016 bta_av_start_failed(p_scb, p_data);
2017 return;
2018 }
2019
2020 /* disallow role switch during streaming, only if we are the master role
2021 * i.e. allow role switch, if we are slave.
2022 * It would not hurt us, if the peer device wants us to be master */
2023 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2024 (cur_role == BTM_ROLE_MASTER) )
2025 {
2026 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2027 }
2028
2029 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2030
2031 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
2032 {
2033 p_scb->role |= BTA_AV_ROLE_START_INT;
2034 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2035
2036 AVDT_StartReq(&p_scb->avdt_handle, 1);
2037 }
2038 else if (p_scb->started)
2039 {
2040 p_scb->role |= BTA_AV_ROLE_START_INT;
2041 if ( p_scb->wait == 0 ) {
2042 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2043 notify_start_failed(p_scb);
2044 } else {
2045 bta_av_start_ok(p_scb, NULL);
2046 }
2047 }
2048 }
2049 APPL_TRACE_DEBUG("started %d role:x%x", p_scb->started, p_scb->role);
2050 }
2051
2052 /*******************************************************************************
2053 **
2054 ** Function bta_av_str_stopped
2055 **
2056 ** Description Stream stopped.
2057 **
2058 ** Returns void
2059 **
2060 *******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2061 void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2062 {
2063 tBTA_AV_SUSPEND suspend_rsp;
2064 UINT8 start = p_scb->started;
2065 BOOLEAN sus_evt = TRUE;
2066 BT_HDR *p_buf;
2067 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2068
2069 APPL_TRACE_ERROR("bta_av_str_stopped:audio_open_cnt=%d, p_data %x",
2070 bta_av_cb.audio_open_cnt, p_data);
2071
2072 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2073 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2074 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2075 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2076
2077 if (p_scb->co_started)
2078 {
2079 vendor_get_interface()->send_command(
2080 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
2081 (void*)&p_scb->l2c_cid);
2082 if (p_scb->offload_start_pending) {
2083 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
2084 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
2085 }
2086 p_scb->offload_start_pending = FALSE;
2087
2088 bta_av_stream_chg(p_scb, FALSE);
2089 p_scb->co_started = FALSE;
2090
2091 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2092 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2093 }
2094
2095 /* if q_info.a2d_list is not empty, drop it now */
2096 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
2097 while (!list_is_empty(p_scb->a2d_list))
2098 {
2099 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2100 list_remove(p_scb->a2d_list, p_buf);
2101 osi_free(p_buf);
2102 }
2103
2104 /* drop the audio buffers queued in L2CAP */
2105 if (p_data && p_data->api_stop.flush)
2106 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2107 }
2108
2109 suspend_rsp.chnl = p_scb->chnl;
2110 suspend_rsp.hndl = p_scb->hndl;
2111
2112 if (p_data && p_data->api_stop.suspend)
2113 {
2114 APPL_TRACE_DEBUG("suspending: %d, sup:%d", start, p_scb->suspend_sup);
2115 if ((start) && (p_scb->suspend_sup))
2116 {
2117 sus_evt = FALSE;
2118 p_scb->l2c_bufs = 0;
2119 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
2120 }
2121
2122 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/
2123 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST))
2124 {
2125 suspend_rsp.status = BTA_AV_SUCCESS;
2126 suspend_rsp.initiator = TRUE;
2127 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2128 }
2129 }
2130 else
2131 {
2132 suspend_rsp.status = BTA_AV_SUCCESS;
2133 suspend_rsp.initiator = TRUE;
2134 APPL_TRACE_EVENT("bta_av_str_stopped status %d", suspend_rsp.status);
2135
2136 /* send STOP_EVT event only if not in reconfiguring state */
2137 if (p_scb->state != BTA_AV_RCFG_SST)
2138 {
2139 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
2140 }
2141 }
2142 }
2143
2144 /*******************************************************************************
2145 **
2146 ** Function bta_av_reconfig
2147 **
2148 ** Description process the reconfigure request.
2149 ** save the parameter in control block and
2150 ** suspend, reconfigure or close the stream
2151 **
2152 ** Returns void
2153 **
2154 *******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2155 void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2156 {
2157 tAVDT_CFG *p_cfg;
2158 tBTA_AV_API_STOP stop;
2159 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig;
2160
2161 APPL_TRACE_DEBUG("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
2162 p_scb->recfg_sup, p_scb->suspend_sup,
2163 p_scb->rcfg_idx, p_scb->sep_info_idx);
2164
2165 p_scb->num_recfg = 0;
2166 /* store the new configuration in control block */
2167 if (p_scb->p_cap == NULL)
2168 p_scb->p_cap = (tAVDT_CFG *)osi_malloc(sizeof(tAVDT_CFG));
2169 p_cfg = p_scb->p_cap;
2170
2171 alarm_cancel(p_scb->avrc_ct_timer);
2172
2173 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
2174 p_cfg->num_protect = p_rcfg->num_protect;
2175 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
2176 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
2177 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2178 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2179
2180 /* if the requested index differs from the current one, we can only close/open */
2181 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
2182 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
2183 {
2184 if(p_scb->started)
2185 {
2186 stop.flush = FALSE;
2187 stop.suspend = TRUE;
2188 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
2189 }
2190 else
2191 {
2192 APPL_TRACE_DEBUG("Reconfig");
2193 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2194 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2195 }
2196 }
2197 else
2198 {
2199 /* close the stream */
2200 APPL_TRACE_DEBUG("close/open num_protect: %d", p_cfg->num_protect);
2201 if(p_scb->started)
2202 {
2203 bta_av_str_stopped(p_scb, NULL);
2204 p_scb->started = FALSE;
2205
2206 /* drop the buffers queued in L2CAP */
2207 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2208
2209 AVDT_CloseReq(p_scb->avdt_handle);
2210 }
2211 }
2212 }
2213
2214 /*******************************************************************************
2215 **
2216 ** Function bta_av_data_path
2217 **
2218 ** Description Handle stream data path.
2219 **
2220 ** Returns void
2221 **
2222 *******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2223 void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2224 {
2225 BT_HDR *p_buf = NULL;
2226 UINT32 data_len;
2227 UINT32 timestamp;
2228 BOOLEAN new_buf = FALSE;
2229 UINT8 m_pt = 0x60 | p_scb->codec_type;
2230 tAVDT_DATA_OPT_MASK opt;
2231 UNUSED(p_data);
2232
2233 if (p_scb->cong)
2234 {
2235 return;
2236 }
2237
2238 /*
2239 APPL_TRACE_ERROR("q: %d", p_scb->l2c_bufs);
2240 */
2241 //Always get the current number of bufs que'd up
2242 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2243
2244 if (!list_is_empty(p_scb->a2d_list)) {
2245 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2246 list_remove(p_scb->a2d_list, p_buf);
2247 /* use q_info.a2d data, read the timestamp */
2248 timestamp = *(UINT32 *)(p_buf + 1);
2249 }
2250 else
2251 {
2252 new_buf = TRUE;
2253 /* a2d_list empty, call co_data, dup data to other channels */
2254 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
2255 ×tamp);
2256
2257 if (p_buf)
2258 {
2259 /* use the offset area for the time stamp */
2260 *(UINT32 *)(p_buf + 1) = timestamp;
2261
2262 /* dup the data to other channels */
2263 bta_av_dup_audio_buf(p_scb, p_buf);
2264 }
2265 }
2266
2267 if(p_buf)
2268 {
2269 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
2270 {
2271 /* there's a buffer, just queue it to L2CAP */
2272 /* There's no need to increment it here, it is always read from L2CAP see above */
2273 /* p_scb->l2c_bufs++; */
2274 /*
2275 APPL_TRACE_ERROR("qw: %d", p_scb->l2c_bufs);
2276 */
2277
2278 /* opt is a bit mask, it could have several options set */
2279 opt = AVDT_DATA_OPT_NONE;
2280 if (p_scb->no_rtp_hdr)
2281 {
2282 opt |= AVDT_DATA_OPT_NO_RTP;
2283 }
2284
2285 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2286 p_scb->cong = TRUE;
2287 }
2288 else
2289 {
2290 /* there's a buffer, but L2CAP does not seem to be moving data */
2291 if(new_buf)
2292 {
2293 /* just got this buffer from co_data,
2294 * put it in queue */
2295 list_append(p_scb->a2d_list, p_buf);
2296 }
2297 else
2298 {
2299 /* just dequeue it from the a2d_list */
2300 if (list_length(p_scb->a2d_list) < 3) {
2301 /* put it back to the queue */
2302 list_prepend(p_scb->a2d_list, p_buf);
2303 }
2304 else
2305 {
2306 /* too many buffers in a2d_list, drop it. */
2307 bta_av_co_audio_drop(p_scb->hndl);
2308 osi_free(p_buf);
2309 }
2310 }
2311 }
2312 }
2313 }
2314
2315 /*******************************************************************************
2316 **
2317 ** Function bta_av_start_ok
2318 **
2319 ** Description Stream started.
2320 **
2321 ** Returns void
2322 **
2323 *******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2324 void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2325 {
2326 tBTA_AV_START start;
2327 tBTA_AV_API_STOP stop;
2328 BOOLEAN initiator = FALSE;
2329 BOOLEAN suspend = FALSE;
2330 UINT16 flush_to;
2331 UINT8 new_role = p_scb->role;
2332 BT_HDR hdr;
2333 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2334 UINT8 cur_role;
2335
2336 APPL_TRACE_DEBUG("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
2337
2338 p_scb->started = TRUE;
2339 if (p_scb->sco_suspend)
2340 {
2341 p_scb->sco_suspend = FALSE;
2342 }
2343
2344 if (new_role & BTA_AV_ROLE_START_INT)
2345 initiator = TRUE;
2346
2347 /* for A2DP SINK we do not send get_caps */
2348 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle)
2349 &&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
2350 {
2351 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2352 APPL_TRACE_DEBUG(" Local SEP type is SNK new wait is 0x%x",p_scb->wait);
2353 }
2354 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
2355 {
2356 /* role switch has failed */
2357 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2358 p_data = (tBTA_AV_DATA *)&hdr;
2359 hdr.offset = BTA_AV_RS_FAIL;
2360 }
2361 APPL_TRACE_DEBUG("wait:x%x", p_scb->wait);
2362
2363 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
2364 {
2365 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2366 if (p_data->hdr.offset == BTA_AV_RS_FAIL)
2367 {
2368 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2369 start.chnl = p_scb->chnl;
2370 start.status = BTA_AV_FAIL_ROLE;
2371 start.hndl = p_scb->hndl;
2372 start.initiator = initiator;
2373 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2374 return;
2375 }
2376 }
2377
2378 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2379 p_scb->q_tag = BTA_AV_Q_TAG_START;
2380 else
2381 {
2382 /* The wait flag may be set here while we are already master on the link */
2383 /* this could happen if a role switch complete event occurred during reconfig */
2384 /* if we are now master on the link, there is no need to wait for the role switch, */
2385 /* complete anymore so we can clear the wait for role switch flag */
2386 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2387 }
2388
2389 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
2390 {
2391 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2392 p_scb->q_tag = BTA_AV_Q_TAG_START;
2393 }
2394
2395 if (p_scb->wait)
2396 {
2397 APPL_TRACE_ERROR("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
2398 /* Clear first bit of p_scb->wait and not to return from this point else
2399 * HAL layer gets blocked. And if there is delay in Get Capability response as
2400 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is not called
2401 * again from bta_av_save_caps.
2402 */
2403 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2404 }
2405
2406 /* tell role manager to check M/S role */
2407 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2408
2409 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2410
2411 if(p_scb->media_type == AVDT_MEDIA_AUDIO)
2412 {
2413 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2414 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
2415 * If the code were to be re-arranged for some reasons, this number may need to be changed
2416 */
2417 p_scb->co_started = bta_av_cb.audio_open_cnt;
2418 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2419 }
2420 else
2421 {
2422 flush_to = p_bta_av_cfg->video_flush_to;
2423 }
2424 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
2425
2426 /* clear the congestion flag */
2427 p_scb->cong = FALSE;
2428
2429 if (new_role & BTA_AV_ROLE_START_INT)
2430 {
2431 new_role &= ~BTA_AV_ROLE_START_INT;
2432 }
2433 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
2434 {
2435 suspend = TRUE;
2436 }
2437
2438 if (!suspend)
2439 {
2440 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2441 bta_av_stream_chg(p_scb, TRUE);
2442 }
2443
2444 {
2445 /* If sink starts stream, disable sniff mode here */
2446 if (!initiator)
2447 {
2448 /* If souce is the master role, disable role switch during streaming.
2449 * Otherwise allow role switch, if source is slave.
2450 * Because it would not hurt source, if the peer device wants source to be master */
2451 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2452 (cur_role == BTM_ROLE_MASTER) )
2453 {
2454 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2455 }
2456
2457 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2458 }
2459
2460 p_scb->role = new_role;
2461 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2462 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2463
2464 p_scb->no_rtp_hdr = FALSE;
2465 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr);
2466 p_scb->co_started = TRUE;
2467
2468 APPL_TRACE_DEBUG("bta_av_start_ok suspending: %d, role:x%x, init %d",
2469 suspend, p_scb->role, initiator);
2470
2471 start.suspending = suspend;
2472 start.initiator = initiator;
2473 start.chnl = p_scb->chnl;
2474 start.status = BTA_AV_SUCCESS;
2475 start.hndl = p_scb->hndl;
2476 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2477
2478 if(suspend)
2479 {
2480 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2481 p_scb->cong = TRUE; /* do not allow the media data to go through */
2482 /* do not duplicate the media packets to this channel */
2483 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2484 p_scb->co_started = FALSE;
2485 stop.flush = FALSE;
2486 stop.suspend = TRUE;
2487 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
2488 }
2489 }
2490 }
2491
2492 /*******************************************************************************
2493 **
2494 ** Function bta_av_start_failed
2495 **
2496 ** Description Stream start failed.
2497 **
2498 ** Returns void
2499 **
2500 *******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2501 void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2502 {
2503 UNUSED(p_data);
2504
2505 if(p_scb->started == FALSE && p_scb->co_started == FALSE)
2506 {
2507 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2508 notify_start_failed(p_scb);
2509 }
2510
2511 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
2512 p_scb->sco_suspend = FALSE;
2513 }
2514
2515 /*******************************************************************************
2516 **
2517 ** Function bta_av_str_closed
2518 **
2519 ** Description Stream closed.
2520 **
2521 ** Returns void
2522 **
2523 *******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2524 void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2525 {
2526 tBTA_AV data;
2527 tBTA_AV_EVT event;
2528 UINT16 mtu;
2529 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2530
2531 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2532 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2533 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2534 if (bta_av_cb.audio_open_cnt <= 1)
2535 {
2536 /* last connection - restore the allow switch flag */
2537 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2538 }
2539
2540 if (p_scb->open_status)
2541 {
2542 /* must be failure when opening the stream */
2543 bdcpy(data.open.bd_addr, p_scb->peer_addr);
2544 data.open.status = p_scb->open_status;
2545 data.open.chnl = p_scb->chnl;
2546 data.open.hndl = p_scb->hndl;
2547
2548 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
2549 data.open.sep = AVDT_TSEP_SNK;
2550 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
2551 data.open.sep = AVDT_TSEP_SRC;
2552
2553 event = BTA_AV_OPEN_EVT;
2554 p_scb->open_status = BTA_AV_SUCCESS;
2555
2556 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2557 bta_av_cleanup(p_scb, p_data);
2558 (*bta_av_cb.p_cback)(event, &data);
2559 }
2560 else
2561 {
2562 /* do stop if we were started */
2563 if (p_scb->co_started)
2564 {
2565 bta_av_str_stopped(p_scb, NULL);
2566 }
2567
2568 /* Update common mtu shared by remaining connectons */
2569 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
2570
2571 {
2572 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
2573 data.close.chnl = p_scb->chnl;
2574 data.close.hndl = p_scb->hndl;
2575 event = BTA_AV_CLOSE_EVT;
2576
2577 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2578 bta_av_cleanup(p_scb, p_data);
2579 (*bta_av_cb.p_cback)(event, &data);
2580 }
2581 }
2582 }
2583
2584 /*******************************************************************************
2585 **
2586 ** Function bta_av_clr_cong
2587 **
2588 ** Description Clear stream congestion flag.
2589 **
2590 ** Returns void
2591 **
2592 *******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2593 void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2594 {
2595 UNUSED(p_data);
2596
2597 if(p_scb->co_started)
2598 p_scb->cong = FALSE;
2599 }
2600
2601 /*******************************************************************************
2602 **
2603 ** Function bta_av_suspend_cfm
2604 **
2605 ** Description process the suspend response
2606 **
2607 ** Returns void
2608 **
2609 *******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2610 void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2611 {
2612 tBTA_AV_SUSPEND suspend_rsp;
2613 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2614 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2615
2616 APPL_TRACE_DEBUG ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
2617 bta_av_cb.audio_open_cnt, err_code);
2618
2619 if (p_scb->started == FALSE)
2620 {
2621 /* handle the condition where there is a collision of SUSPEND req from either side
2622 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2623 */
2624 APPL_TRACE_WARNING("bta_av_suspend_cfm: already suspended, ignore, err_code %d",
2625 err_code);
2626 return;
2627 }
2628
2629 suspend_rsp.status = BTA_AV_SUCCESS;
2630 if (err_code && (err_code != AVDT_ERR_BAD_STATE))
2631 {
2632 /* Disable suspend feature only with explicit rejection(not with timeout) */
2633 if (err_code != AVDT_ERR_TIMEOUT)
2634 {
2635 p_scb->suspend_sup = FALSE;
2636 }
2637 suspend_rsp.status = BTA_AV_FAIL;
2638
2639 APPL_TRACE_ERROR ("bta_av_suspend_cfm: suspend failed, closing connection");
2640
2641 /* SUSPEND failed. Close connection. */
2642 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2643 }
2644 else
2645 {
2646 /* only set started to FALSE when suspend is successful */
2647 p_scb->started = FALSE;
2648 }
2649
2650 if (p_scb->role & BTA_AV_ROLE_SUSPEND)
2651 {
2652 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2653 p_scb->cong = FALSE;
2654 }
2655
2656 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2657 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2658 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2659 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2660
2661 /* in case that we received suspend_ind, we may need to call co_stop here */
2662 if(p_scb->co_started)
2663 {
2664 vendor_get_interface()->send_command(
2665 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP,
2666 (void*)&p_scb->l2c_cid);
2667 if (p_scb->offload_start_pending) {
2668 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
2669 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
2670 }
2671 p_scb->offload_start_pending = FALSE;
2672
2673 bta_av_stream_chg(p_scb, FALSE);
2674
2675 {
2676 p_scb->co_started = FALSE;
2677 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2678 }
2679 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2680 }
2681
2682 {
2683 suspend_rsp.chnl = p_scb->chnl;
2684 suspend_rsp.hndl = p_scb->hndl;
2685 suspend_rsp.initiator = p_data->str_msg.initiator;
2686 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2687 }
2688 }
2689
2690 /*******************************************************************************
2691 **
2692 ** Function bta_av_rcfg_str_ok
2693 **
2694 ** Description report reconfigure successful
2695 **
2696 ** Returns void
2697 **
2698 *******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2699 void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2700 {
2701 tBTA_AV_RECONFIG evt;
2702 UNUSED(p_data);
2703
2704 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2705 APPL_TRACE_DEBUG("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
2706
2707 /* rc listen */
2708 bta_av_st_rc_timer(p_scb, NULL);
2709 osi_free_and_reset((void **)&p_scb->p_cap);
2710
2711 /* No need to keep the role bits once reconfig is done. */
2712 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2713 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2714 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2715
2716 {
2717 /* reconfigure success */
2718 evt.status = BTA_AV_SUCCESS;
2719 evt.chnl = p_scb->chnl;
2720 evt.hndl = p_scb->hndl;
2721 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2722 }
2723 }
2724
2725 /*******************************************************************************
2726 **
2727 ** Function bta_av_rcfg_failed
2728 **
2729 ** Description process reconfigure failed
2730 **
2731 ** Returns void
2732 **
2733 *******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2734 void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2735 {
2736 tBTA_AV_RECONFIG evt;
2737
2738 APPL_TRACE_DEBUG("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
2739 p_scb->num_recfg, bta_av_cb.conn_lcb);
2740 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2741 {
2742 bta_av_cco_close(p_scb, p_data);
2743 /* report failure */
2744 evt.status = BTA_AV_FAIL_STREAM;
2745 evt.chnl = p_scb->chnl;
2746 evt.hndl = p_scb->hndl;
2747 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2748 /* go to closing state */
2749 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2750 }
2751 else
2752 {
2753 /* open failed. try again */
2754 p_scb->num_recfg++;
2755 if(bta_av_cb.conn_lcb)
2756 {
2757 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
2758 }
2759 else
2760 {
2761 bta_av_connect_req(p_scb, NULL);
2762 }
2763 }
2764 }
2765
2766 /*******************************************************************************
2767 **
2768 ** Function bta_av_rcfg_connect
2769 **
2770 ** Description stream closed. reconnect the stream
2771 **
2772 ** Returns void
2773 **
2774 *******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2775 void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2776 {
2777 UNUSED(p_data);
2778
2779 p_scb->cong = FALSE;
2780 p_scb->num_recfg++;
2781 APPL_TRACE_DEBUG("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
2782 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2783 {
2784 /* let bta_av_rcfg_failed report fail */
2785 bta_av_rcfg_failed(p_scb, NULL);
2786 }
2787 else
2788 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2789 }
2790
2791 /*******************************************************************************
2792 **
2793 ** Function bta_av_rcfg_discntd
2794 **
2795 ** Description AVDT disconnected. reconnect the stream
2796 **
2797 ** Returns void
2798 **
2799 *******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2800 void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2801 {
2802 tBTA_AV_RECONFIG evt;
2803 UNUSED(p_data);
2804
2805 APPL_TRACE_DEBUG("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
2806 p_scb->num_recfg++;
2807 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2808 {
2809 /* report failure */
2810 evt.status = BTA_AV_FAIL_STREAM;
2811 evt.chnl = p_scb->chnl;
2812 evt.hndl = p_scb->hndl;
2813 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2814 /* report close event & go to init state */
2815 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2816 }
2817 else
2818 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2819 }
2820
2821 /*******************************************************************************
2822 **
2823 ** Function bta_av_suspend_cont
2824 **
2825 ** Description received the suspend response.
2826 ** continue to reconfigure the stream
2827 **
2828 ** Returns void
2829 **
2830 *******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2831 void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2832 {
2833 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2834 tBTA_AV_RECONFIG evt;
2835
2836 p_scb->started = FALSE;
2837 p_scb->cong = FALSE;
2838 if (err_code)
2839 {
2840 if (AVDT_ERR_CONNECT == err_code)
2841 {
2842 /* report failure */
2843 evt.status = BTA_AV_FAIL;
2844 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2845 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2846 }
2847 else
2848 {
2849 APPL_TRACE_ERROR("suspend rejected, try close");
2850 /* Disable suspend feature only with explicit rejection(not with timeout) */
2851 if (err_code != AVDT_ERR_TIMEOUT)
2852 {
2853 p_scb->suspend_sup = FALSE;
2854 }
2855 /* drop the buffers queued in L2CAP */
2856 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2857
2858 AVDT_CloseReq(p_scb->avdt_handle);
2859 }
2860 }
2861 else
2862 {
2863 APPL_TRACE_DEBUG("bta_av_suspend_cont calling AVDT_ReconfigReq");
2864 /* reconfig the stream */
2865
2866 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2867 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2868 }
2869 }
2870
2871 /*******************************************************************************
2872 **
2873 ** Function bta_av_rcfg_cfm
2874 **
2875 ** Description if reconfigure is successful, report the event
2876 ** otherwise, close the stream.
2877 **
2878 ** Returns void
2879 **
2880 *******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2881 void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2882 {
2883 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2884
2885 /*
2886 APPL_TRACE_DEBUG("bta_av_rcfg_cfm");
2887 */
2888 if (err_code)
2889 {
2890 APPL_TRACE_ERROR("reconfig rejected, try close");
2891 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */
2892 if (err_code != AVDT_ERR_TIMEOUT)
2893 {
2894 p_scb->recfg_sup = FALSE;
2895 }
2896 /* started flag is FALSE when reconfigure command is sent */
2897 /* drop the buffers queued in L2CAP */
2898 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2899 AVDT_CloseReq(p_scb->avdt_handle);
2900 }
2901 else
2902 {
2903 /* update the codec info after rcfg cfm */
2904 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE);
2905 /* take the SSM back to OPEN state */
2906 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2907 }
2908 }
2909
2910 /*******************************************************************************
2911 **
2912 ** Function bta_av_rcfg_open
2913 **
2914 ** Description AVDT is connected. open the stream with the new configuration
2915 **
2916 ** Returns void
2917 **
2918 *******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2919 void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2920 {
2921 UNUSED(p_data);
2922
2923 APPL_TRACE_DEBUG("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
2924
2925 if (p_scb->num_disc_snks == 0)
2926 {
2927 /* Need to update call-out module so that it will be ready for discover */
2928 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2929
2930 /* send avdtp discover request */
2931 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
2932 }
2933 else
2934 {
2935 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
2936 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
2937 /* we may choose to use a different SEP at reconfig.
2938 * adjust the sep_idx now */
2939 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2940
2941 /* open the stream with the new config */
2942 p_scb->sep_info_idx = p_scb->rcfg_idx;
2943 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
2944 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
2945 }
2946
2947 }
2948
2949 /*******************************************************************************
2950 **
2951 ** Function bta_av_security_rej
2952 **
2953 ** Description Send an AVDTP security reject.
2954 **
2955 ** Returns void
2956 **
2957 *******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2958 void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2959 {
2960 UNUSED(p_data);
2961
2962 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2963 NULL, 0);
2964 }
2965
2966 /*******************************************************************************
2967 **
2968 ** Function bta_av_chk_2nd_start
2969 **
2970 ** Description check if this is 2nd stream and if it needs to be started.
2971 ** This function needs to be kept very similar to bta_av_chk_start
2972 **
2973 ** Returns void
2974 **
2975 *******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2976 void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2977 {
2978 tBTA_AV_SCB *p_scbi;
2979 int i;
2980 BOOLEAN new_started = FALSE;
2981 UNUSED(p_data);
2982
2983 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
2984 {
2985 /* more than one audio channel is connected */
2986 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
2987 {
2988 /* this channel does not need to be reconfigured.
2989 * if there is other channel streaming, start the stream now */
2990 for(i=0; i<BTA_AV_NUM_STRS; i++)
2991 {
2992 p_scbi = bta_av_cb.p_scb[i];
2993 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
2994 {
2995 if (!new_started)
2996 {
2997 /* start the new stream */
2998 new_started = TRUE;
2999 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
3000 }
3001 /* may need to update the flush timeout of this already started stream */
3002 if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
3003 {
3004 p_scbi->co_started = bta_av_cb.audio_open_cnt;
3005 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
3006 }
3007 }
3008 }
3009 }
3010 }
3011 }
3012
3013 /*******************************************************************************
3014 **
3015 ** Function bta_av_open_rc
3016 **
3017 ** Description Send a message to main SM to open RC channel.
3018 **
3019 ** Returns void
3020 **
3021 *******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3022 void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3023 {
3024 tBTA_AV_START start;
3025
3026 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);
3027 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
3028 {
3029 /* waiting for role switch for some reason & the timer expires */
3030 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
3031 {
3032 APPL_TRACE_ERROR ("failed to start streaming for role management reasons!!");
3033 alarm_cancel(p_scb->avrc_ct_timer);
3034 start.chnl = p_scb->chnl;
3035 start.status = BTA_AV_FAIL_ROLE;
3036 start.initiator = TRUE;
3037 start.hndl = p_scb->hndl;
3038 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
3039 bta_av_cb.rs_idx = 0;
3040 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
3041 }
3042 else
3043 {
3044 /* role switch is done. continue to start streaming */
3045 bta_av_cb.rs_idx = 0;
3046 p_data->hdr.offset = BTA_AV_RS_OK;
3047 bta_av_start_ok (p_scb, p_data);
3048 }
3049 return;
3050 }
3051
3052 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
3053 {
3054 if(bta_av_cb.disc)
3055 {
3056 /* AVRC discover db is in use */
3057 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
3058 {
3059 /* AVRC channel is not connected. delay a little bit */
3060 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
3061 bta_sys_start_timer(p_scb->avrc_ct_timer,
3062 BTA_AV_RC_DISC_TIME_VAL,
3063 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
3064 } else {
3065 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
3066 }
3067 }
3068 }
3069 else
3070 {
3071 /* use main SM for AVRC SDP activities */
3072 bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
3073 }
3074 }
3075 else
3076 {
3077 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
3078 {
3079 /* the open API said that this handle does not want a RC connection.
3080 * disconnect it now */
3081 AVRC_Close(p_scb->rc_handle);
3082 }
3083 }
3084 }
3085
3086 /*******************************************************************************
3087 **
3088 ** Function bta_av_open_at_inc
3089 **
3090 ** Description This function is called if API open is called by application
3091 ** while state-machine is at incoming state.
3092 **
3093 ** Returns void
3094 **
3095 *******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3096 void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3097 {
3098 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
3099
3100 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
3101 {
3102 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
3103
3104 /* API open will be handled at timeout if SNK did not start signalling. */
3105 /* API open will be ignored if SNK starts signalling. */
3106 }
3107 else
3108 {
3109 /* SNK did not start signalling, API was called N seconds timeout. */
3110 /* We need to switch to INIT state and start opening connection. */
3111 p_scb->coll_mask = 0;
3112 bta_av_set_scb_sst_init(p_scb);
3113
3114 tBTA_AV_API_OPEN *p_buf =
3115 (tBTA_AV_API_OPEN *)osi_malloc(sizeof(tBTA_AV_API_OPEN));
3116 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
3117 p_scb->skip_sdp = TRUE;
3118 bta_sys_sendmsg(p_buf);
3119 }
3120 }
3121
3122 /*******************************************************************************
3123 **
3124 ** Function bta_av_offload_req
3125 **
3126 ** Description This function is called if application requests offload of
3127 ** a2dp audio.
3128 **
3129 ** Returns void
3130 **
3131 *******************************************************************************/
bta_av_offload_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3132 void bta_av_offload_req(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3133 {
3134 tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
3135 UINT16 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
3136
3137 APPL_TRACE_DEBUG("%s stream %s, audio channels open %d", __func__,
3138 p_scb->started ? "STARTED" : "STOPPED", bta_av_cb.audio_open_cnt);
3139
3140 /* Check if stream has already been started. */
3141 /* Support offload if only one audio source stream is open. */
3142 if (p_scb->started != TRUE) {
3143 status = BTA_AV_FAIL_STREAM;
3144
3145 } else if (bta_av_cb.audio_open_cnt == 1 &&
3146 p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
3147 p_scb->chnl == BTA_AV_CHNL_AUDIO) {
3148
3149 bt_vendor_op_a2dp_offload_t a2dp_offload_start;
3150
3151 if (L2CA_GetConnectionConfig(p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
3152 &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
3153
3154 APPL_TRACE_DEBUG("%s l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle 0x%02X", __func__,
3155 a2dp_offload_start.acl_data_size, p_scb->l2c_cid,
3156 a2dp_offload_start.remote_cid, a2dp_offload_start.lm_handle);
3157
3158 a2dp_offload_start.bta_av_handle = p_scb->hndl;
3159 a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
3160 a2dp_offload_start.stream_mtu = (mtu < p_scb->stream_mtu) ? mtu : p_scb->stream_mtu;
3161 a2dp_offload_start.local_cid = p_scb->l2c_cid;
3162 a2dp_offload_start.is_flushable = TRUE;
3163 a2dp_offload_start.stream_source = ((UINT32)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
3164
3165 memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
3166 sizeof(a2dp_offload_start.codec_info));
3167
3168 if (!vendor_get_interface()->send_command(
3169 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
3170 &a2dp_offload_start)) {
3171 status = BTA_AV_SUCCESS;
3172 p_scb->offload_start_pending = TRUE;
3173 }
3174 }
3175 }
3176
3177 if (status != BTA_AV_SUCCESS)
3178 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
3179 }
3180
3181 /*******************************************************************************
3182 **
3183 ** Function bta_av_offload_rsp
3184 **
3185 ** Description This function is called when the vendor lib responds to
3186 ** BT_VND_OP_A2DP_OFFLOAD_START.
3187 **
3188 ** Returns void
3189 **
3190 *******************************************************************************/
bta_av_offload_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3191 void bta_av_offload_rsp(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3192 {
3193 tBTA_AV_STATUS status = p_data->api_status_rsp.status;
3194
3195 APPL_TRACE_DEBUG("%s stream %s status %s", __func__,
3196 p_scb->started ? "STARTED" : "STOPPED",
3197 status ? "FAIL" : "SUCCESS");
3198
3199 /* Check if stream has already been started. */
3200 if (status == BTA_AV_SUCCESS && p_scb->started != TRUE) {
3201 status = BTA_AV_FAIL_STREAM;
3202 }
3203
3204 p_scb->offload_start_pending = FALSE;
3205 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, (tBTA_AV *)&status);
3206 }
3207
3208 #endif /* BTA_AV_INCLUDED */
3209