1 /******************************************************************************
2 *
3 * Copyright 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 #define LOG_TAG "bt_bta_av"
28
29 #include "bt_target.h"
30
31 #include <base/logging.h>
32 #include <string.h>
33 #include <vector>
34
35 #include "a2dp_sbc.h"
36 #include "avdt_api.h"
37 #include "avrcp_service.h"
38 #include "bt_utils.h"
39 #include "bta_av_int.h"
40 #include "btif/include/btif_av_co.h"
41 #include "btif/include/btif_config.h"
42 #include "btif/include/btif_storage.h"
43 #include "btm_int.h"
44 #include "device/include/controller.h"
45 #include "device/include/interop.h"
46 #include "l2c_api.h"
47 #include "l2cdefs.h"
48 #include "osi/include/log.h"
49 #include "osi/include/osi.h"
50 #include "osi/include/properties.h"
51 #include "utl.h"
52 #if (BTA_AR_INCLUDED == TRUE)
53 #include "bta_ar_api.h"
54 #endif
55 #include "btif/include/btif_av.h"
56 #include "btif/include/btif_hf.h"
57
58 /*****************************************************************************
59 * Constants
60 ****************************************************************************/
61
62 /* the delay time in milliseconds to start service discovery on AVRCP */
63 #ifndef BTA_AV_RC_DISC_TIME_VAL
64 #define BTA_AV_RC_DISC_TIME_VAL 3500
65 #endif
66
67 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed
68 * to be sent */
69 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
70 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
71 #endif
72
73 /* number to retry on reconfigure failure - some headsets requirs this number to
74 * be more than 1 */
75 #ifndef BTA_AV_RECONFIG_RETRY
76 #define BTA_AV_RECONFIG_RETRY 6
77 #endif
78
79 /* ACL quota we are letting FW use for A2DP Offload Tx. */
80 #define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA 4
81
82 #define BTIF_A2DP_MAX_BITPOOL_MQ 35
83
84 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
85 tBT_A2DP_OFFLOAD* p_a2dp_offload);
86 static void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb,
87 UNUSED_ATTR tBTA_AV_DATA* p_data);
88
89 /* state machine states */
90 enum {
91 BTA_AV_INIT_SST,
92 BTA_AV_INCOMING_SST,
93 BTA_AV_OPENING_SST,
94 BTA_AV_OPEN_SST,
95 BTA_AV_RCFG_SST,
96 BTA_AV_CLOSING_SST
97 };
98
99 /* the call out functions for audio stream */
100 const tBTA_AV_CO_FUNCTS bta_av_a2dp_cos = {bta_av_co_audio_init,
101 bta_av_co_audio_disc_res,
102 bta_av_co_audio_getconfig,
103 bta_av_co_audio_setconfig,
104 bta_av_co_audio_open,
105 bta_av_co_audio_close,
106 bta_av_co_audio_start,
107 bta_av_co_audio_stop,
108 bta_av_co_audio_source_data_path,
109 bta_av_co_audio_delay,
110 bta_av_co_audio_update_mtu,
111 bta_av_co_content_protect_is_active};
112
113 /* ssm action functions for audio stream */
114 const tBTA_AV_SACT bta_av_a2dp_action[] = {
115 bta_av_do_disc_a2dp, /* BTA_AV_DO_DISC */
116 bta_av_cleanup, /* BTA_AV_CLEANUP */
117 bta_av_free_sdb, /* BTA_AV_FREE_SDB */
118 bta_av_config_ind, /* BTA_AV_CONFIG_IND */
119 bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */
120 bta_av_security_req, /* BTA_AV_SECURITY_REQ */
121 bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */
122 bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */
123 bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */
124 bta_av_str_opened, /* BTA_AV_STR_OPENED */
125 bta_av_security_ind, /* BTA_AV_SECURITY_IND */
126 bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */
127 bta_av_do_close, /* BTA_AV_DO_CLOSE */
128 bta_av_connect_req, /* BTA_AV_CONNECT_REQ */
129 bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */
130 bta_av_disc_results, /* BTA_AV_DISC_RESULTS */
131 bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
132 bta_av_open_failed, /* BTA_AV_OPEN_FAILED */
133 bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */
134 bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */
135 bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */
136 bta_av_conn_failed, /* BTA_AV_CONN_FAILED */
137 bta_av_do_start, /* BTA_AV_DO_START */
138 bta_av_str_stopped, /* BTA_AV_STR_STOPPED */
139 bta_av_reconfig, /* BTA_AV_RECONFIG */
140 bta_av_data_path, /* BTA_AV_DATA_PATH */
141 bta_av_start_ok, /* BTA_AV_START_OK */
142 bta_av_start_failed, /* BTA_AV_START_FAILED */
143 bta_av_str_closed, /* BTA_AV_STR_CLOSED */
144 bta_av_clr_cong, /* BTA_AV_CLR_CONG */
145 bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */
146 bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */
147 bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */
148 bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */
149 bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */
150 bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */
151 bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */
152 bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */
153 bta_av_security_rej, /* BTA_AV_SECURITY_REJ */
154 bta_av_open_rc, /* BTA_AV_OPEN_RC */
155 bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */
156 bta_av_save_caps, /* BTA_AV_SAVE_CAPS */
157 bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */
158 bta_av_cco_close, /* BTA_AV_CCO_CLOSE */
159 bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */
160 bta_av_role_res, /* BTA_AV_ROLE_RES */
161 bta_av_delay_co, /* BTA_AV_DELAY_CO */
162 bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */
163 bta_av_offload_req, /* BTA_AV_OFFLOAD_REQ */
164 bta_av_offload_rsp, /* BTA_AV_OFFLOAD_RSP */
165 NULL};
166
167 /* these tables translate AVDT events to SSM events */
168 static const uint16_t bta_av_stream_evt_ok[] = {
169 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
170 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
171 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
172 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
173 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
174 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
175 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
176 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
177 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
178 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
179 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
180 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
181 0, /* AVDT_RECONFIG_IND_EVT */
182 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
183 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
184 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
185 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
186 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
187 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
188 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
189 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
190 0 /* AVDT_DELAY_REPORT_CFM_EVT */
191 };
192
193 static const uint16_t bta_av_stream_evt_fail[] = {
194 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
195 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
196 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
197 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
198 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
199 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
200 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
201 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
202 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
203 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
204 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
205 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
206 0, /* AVDT_RECONFIG_IND_EVT */
207 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
208 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
209 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
210 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
211 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
212 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
213 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
214 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
215 0 /* AVDT_DELAY_REPORT_CFM_EVT */
216 };
217
218 /***********************************************
219 *
220 * Function bta_get_scb_handle
221 *
222 * Description gives the registered AVDT handle.by checking with sep_type.
223 *
224 *
225 * Returns void
226 **********************************************/
bta_av_get_scb_handle(tBTA_AV_SCB * p_scb,uint8_t local_sep)227 static uint8_t bta_av_get_scb_handle(tBTA_AV_SCB* p_scb, uint8_t local_sep) {
228 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
229 if ((p_scb->seps[i].tsep == local_sep) &&
230 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
231 p_scb->cfg.codec_info)) {
232 return (p_scb->seps[i].av_handle);
233 }
234 }
235 APPL_TRACE_DEBUG("%s: local sep_type %d not found", __func__, local_sep)
236 return 0; /* return invalid handle */
237 }
238
239 /***********************************************
240 *
241 * Function bta_av_get_scb_sep_type
242 *
243 * Description gives the sep type by cross-checking with AVDT handle
244 *
245 *
246 * Returns void
247 **********************************************/
bta_av_get_scb_sep_type(tBTA_AV_SCB * p_scb,uint8_t tavdt_handle)248 static uint8_t bta_av_get_scb_sep_type(tBTA_AV_SCB* p_scb,
249 uint8_t tavdt_handle) {
250 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
251 if (p_scb->seps[i].av_handle == tavdt_handle) return (p_scb->seps[i].tsep);
252 }
253 APPL_TRACE_DEBUG("%s: handle %d not found", __func__, tavdt_handle)
254 return AVDT_TSEP_INVALID;
255 }
256
257 /*******************************************************************************
258 *
259 * Function bta_av_save_addr
260 *
261 * Description copy the bd_addr and maybe reset the supported flags
262 *
263 *
264 * Returns void
265 *
266 ******************************************************************************/
bta_av_save_addr(tBTA_AV_SCB * p_scb,const RawAddress & bd_addr)267 static void bta_av_save_addr(tBTA_AV_SCB* p_scb, const RawAddress& bd_addr) {
268 APPL_TRACE_DEBUG("%s: peer=%s recfg_sup:%d, suspend_sup:%d", __func__,
269 bd_addr.ToString().c_str(), p_scb->recfg_sup,
270 p_scb->suspend_sup);
271 if (p_scb->PeerAddress() != bd_addr) {
272 LOG_INFO(LOG_TAG, "%s: reset flags old_addr=%s new_addr=%s", __func__,
273 p_scb->PeerAddress().ToString().c_str(),
274 bd_addr.ToString().c_str());
275 /* a new addr, reset the supported flags */
276 p_scb->recfg_sup = true;
277 p_scb->suspend_sup = true;
278 }
279
280 /* do this copy anyway, just in case the first addr matches
281 * the control block one by accident */
282 p_scb->OnConnected(bd_addr);
283 }
284
285 /*******************************************************************************
286 *
287 * Function notify_start_failed
288 *
289 * Description notify up-layer AV start failed
290 *
291 *
292 * Returns void
293 *
294 ******************************************************************************/
notify_start_failed(tBTA_AV_SCB * p_scb)295 static void notify_start_failed(tBTA_AV_SCB* p_scb) {
296 LOG_ERROR(LOG_TAG, "%s: peer %s role:0x%x channel:%d handle:0x%x", __func__,
297 p_scb->PeerAddress().ToString().c_str(), p_scb->role, p_scb->chnl,
298 p_scb->hndl);
299 tBTA_AV_START start;
300 /* if start failed, clear role */
301 p_scb->role &= ~BTA_AV_ROLE_START_INT;
302 start.chnl = p_scb->chnl;
303 start.status = BTA_AV_FAIL;
304 start.initiator = true;
305 start.hndl = p_scb->hndl;
306
307 tBTA_AV bta_av_data;
308 bta_av_data.start = start;
309 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
310 }
311
312 /*******************************************************************************
313 *
314 * Function bta_av_st_rc_timer
315 *
316 * Description start the AVRC timer if no RC connection & CT is supported &
317 * RC is used or
318 * as ACP (we do not really know if we want AVRC)
319 *
320 * Returns void
321 *
322 ******************************************************************************/
bta_av_st_rc_timer(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)323 static void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb,
324 UNUSED_ATTR tBTA_AV_DATA* p_data) {
325 APPL_TRACE_DEBUG("%s: rc_handle:%d, use_rc: %d", __func__, p_scb->rc_handle,
326 p_scb->use_rc);
327 /* for outgoing RC connection as INT/CT */
328 if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
329 /* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
330 (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP))) {
331 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
332 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
333 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
334 } else {
335 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
336 }
337 }
338 }
339
340 /*******************************************************************************
341 *
342 * Function bta_av_next_getcap
343 *
344 * Description The function gets the capabilities of the next available
345 * stream found in the discovery results.
346 *
347 * Returns true if we sent request to AVDT, false otherwise.
348 *
349 ******************************************************************************/
bta_av_next_getcap(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)350 static bool bta_av_next_getcap(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
351 int i;
352 bool sent_cmd = false;
353 uint16_t uuid_int = p_scb->uuid_int;
354 uint8_t sep_requested = 0;
355
356 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
357 sep_requested = AVDT_TSEP_SNK;
358 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
359 sep_requested = AVDT_TSEP_SRC;
360
361 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) {
362 /* steam not in use, is a sink, and is the right media type (audio/video) */
363 if ((!p_scb->sep_info[i].in_use) &&
364 (p_scb->sep_info[i].tsep == sep_requested) &&
365 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
366 p_scb->sep_info_idx = i;
367
368 /* we got a stream; get its capabilities */
369 bool get_all_cap = (p_scb->AvdtpVersion() >= AVDT_VERSION_1_3) &&
370 (A2DP_GetAvdtpVersion() >= AVDT_VERSION_1_3);
371 AVDT_GetCapReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info[i].seid,
372 &p_scb->peer_cap, &bta_av_proc_stream_evt, get_all_cap);
373 sent_cmd = true;
374 break;
375 }
376 }
377
378 /* if no streams available then stream open fails */
379 if (!sent_cmd) {
380 APPL_TRACE_ERROR("%s: BTA_AV_STR_GETCAP_FAIL_EVT: peer_addr=%s", __func__,
381 p_scb->PeerAddress().ToString().c_str());
382 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
383 }
384
385 return sent_cmd;
386 }
387
388 /*******************************************************************************
389 *
390 * Function bta_av_proc_stream_evt
391 *
392 * Description Utility function to compose stream events.
393 *
394 * Returns void
395 *
396 ******************************************************************************/
bta_av_proc_stream_evt(uint8_t handle,const RawAddress & bd_addr,uint8_t event,tAVDT_CTRL * p_data,uint8_t scb_index)397 void bta_av_proc_stream_evt(uint8_t handle, const RawAddress& bd_addr,
398 uint8_t event, tAVDT_CTRL* p_data,
399 uint8_t scb_index) {
400 CHECK_LT(scb_index, BTA_AV_NUM_STRS);
401 tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[scb_index];
402 uint16_t sec_len = 0;
403
404 APPL_TRACE_EVENT(
405 "%s: peer_address: %s avdt_handle: %d event=0x%x scb_index=%d p_scb=%p",
406 __func__, bd_addr.ToString().c_str(), handle, event, scb_index, p_scb);
407
408 if (p_data) {
409 if (event == AVDT_SECURITY_IND_EVT) {
410 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN)
411 ? p_data->security_ind.len
412 : BTA_AV_SECURITY_MAX_LEN;
413 } else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) {
414 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN)
415 ? p_data->security_cfm.len
416 : BTA_AV_SECURITY_MAX_LEN;
417 }
418 }
419
420 if (p_scb) {
421 tBTA_AV_STR_MSG* p_msg =
422 (tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
423
424 /* copy event data, bd addr, and handle to event message buffer */
425 p_msg->hdr.offset = 0;
426
427 p_msg->bd_addr = bd_addr;
428 p_msg->scb_index = scb_index;
429 APPL_TRACE_EVENT("%s: stream event bd_addr: %s scb_index: %u", __func__,
430 p_msg->bd_addr.ToString().c_str(), scb_index);
431
432 if (p_data != NULL) {
433 memcpy(&p_msg->msg, p_data, sizeof(tAVDT_CTRL));
434 /* copy config params to event message buffer */
435 switch (event) {
436 case AVDT_CONFIG_IND_EVT:
437 p_msg->cfg = *p_data->config_ind.p_cfg;
438 break;
439
440 case AVDT_SECURITY_IND_EVT:
441 p_msg->msg.security_ind.p_data = (uint8_t*)(p_msg + 1);
442 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data,
443 sec_len);
444 break;
445
446 case AVDT_SECURITY_CFM_EVT:
447 p_msg->msg.security_cfm.p_data = (uint8_t*)(p_msg + 1);
448 if (p_data->hdr.err_code == 0) {
449 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data,
450 sec_len);
451 }
452 break;
453
454 case AVDT_SUSPEND_IND_EVT:
455 p_msg->msg.hdr.err_code = 0;
456 break;
457
458 case AVDT_CONNECT_IND_EVT:
459 p_scb->recfg_sup = true;
460 p_scb->suspend_sup = true;
461 break;
462
463 default:
464 break;
465 }
466 } else {
467 p_msg->msg.hdr.err_code = 0;
468 }
469
470 /* look up application event */
471 if ((p_data == NULL) || (p_data->hdr.err_code == 0)) {
472 p_msg->hdr.event = bta_av_stream_evt_ok[event];
473 } else {
474 p_msg->hdr.event = bta_av_stream_evt_fail[event];
475 }
476
477 p_msg->initiator = false;
478 if (event == AVDT_SUSPEND_CFM_EVT) p_msg->initiator = true;
479
480 APPL_TRACE_VERBOSE("%s: hndl:0x%x", __func__, p_scb->hndl);
481 p_msg->hdr.layer_specific = p_scb->hndl;
482 p_msg->handle = handle;
483 p_msg->avdt_event = event;
484 bta_sys_sendmsg(p_msg);
485 }
486
487 if (p_data) {
488 bta_av_conn_cback(handle, bd_addr, event, p_data, scb_index);
489 } else {
490 APPL_TRACE_ERROR("%s: p_data is null", __func__);
491 }
492 }
493
494 /*******************************************************************************
495 *
496 * Function bta_av_sink_data_cback
497 *
498 * Description This is the AVDTP callback function for sink stream events.
499 *
500 * Returns void
501 *
502 ******************************************************************************/
bta_av_sink_data_cback(uint8_t handle,BT_HDR * p_pkt,uint32_t time_stamp,uint8_t m_pt)503 void bta_av_sink_data_cback(uint8_t handle, BT_HDR* p_pkt, uint32_t time_stamp,
504 uint8_t m_pt) {
505 int index = 0;
506 tBTA_AV_SCB* p_scb;
507 APPL_TRACE_DEBUG(
508 "%s: avdt_handle: %d pkt_len=0x%x offset = 0x%x "
509 "number of frames 0x%x sequence number 0x%x",
510 __func__, handle, p_pkt->len, p_pkt->offset,
511 *((uint8_t*)(p_pkt + 1) + p_pkt->offset), p_pkt->layer_specific);
512 /* Get SCB and correct sep type */
513 for (index = 0; index < BTA_AV_NUM_STRS; index++) {
514 p_scb = bta_av_cb.p_scb[index];
515 if ((p_scb->avdt_handle == handle) &&
516 (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)) {
517 break;
518 }
519 }
520 if (index == BTA_AV_NUM_STRS) {
521 /* cannot find correct handler */
522 osi_free(p_pkt);
523 return;
524 }
525 p_pkt->event = BTA_AV_SINK_MEDIA_DATA_EVT;
526 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(BTA_AV_SINK_MEDIA_DATA_EVT,
527 (tBTA_AV_MEDIA*)p_pkt);
528 /* Free the buffer: a copy of the packet has been delivered */
529 osi_free(p_pkt);
530 }
531
532 /*******************************************************************************
533 *
534 * Function bta_av_a2dp_sdp_cback
535 *
536 * Description A2DP service discovery callback.
537 *
538 * Returns void
539 *
540 ******************************************************************************/
bta_av_a2dp_sdp_cback(bool found,tA2DP_Service * p_service,const RawAddress & peer_address)541 static void bta_av_a2dp_sdp_cback(bool found, tA2DP_Service* p_service,
542 const RawAddress& peer_address) {
543 APPL_TRACE_DEBUG("%s: peer %s : found=%s", __func__,
544 peer_address.ToString().c_str(), (found) ? "true" : "false");
545
546 tBTA_AV_SCB* p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
547 if (p_scb == NULL) {
548 APPL_TRACE_ERROR("%s: no scb found for handle(0x%x)", __func__,
549 bta_av_cb.handle);
550 return;
551 }
552
553 if (!found) {
554 APPL_TRACE_ERROR("%s: peer %s A2DP service discovery failed", __func__,
555 p_scb->PeerAddress().ToString().c_str());
556 }
557 APPL_TRACE_DEBUG("%s: peer %s found=%s", __func__,
558 p_scb->PeerAddress().ToString().c_str(),
559 (found) ? "true" : "false");
560
561 tBTA_AV_SDP_RES* p_msg =
562 (tBTA_AV_SDP_RES*)osi_malloc(sizeof(tBTA_AV_SDP_RES));
563 if (found) {
564 p_msg->hdr.event = BTA_AV_SDP_DISC_OK_EVT;
565 } else {
566 p_msg->hdr.event = BTA_AV_SDP_DISC_FAIL_EVT;
567 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
568 p_scb->PeerAddress().ToString().c_str());
569 }
570 if (found && (p_service != NULL)) {
571 p_scb->SetAvdtpVersion(p_service->avdt_version);
572 if (p_service->avdt_version != 0) {
573 if (btif_config_set_bin(p_scb->PeerAddress().ToString(),
574 AVDTP_VERSION_CONFIG_KEY,
575 (const uint8_t*)&p_service->avdt_version,
576 sizeof(p_service->avdt_version))) {
577 btif_config_save();
578 } else {
579 APPL_TRACE_WARNING("%s: Failed to store peer AVDTP version for %s",
580 __func__, p_scb->PeerAddress().ToString().c_str());
581 }
582 }
583 } else {
584 p_scb->SetAvdtpVersion(0);
585 }
586 p_msg->hdr.layer_specific = bta_av_cb.handle;
587
588 bta_sys_sendmsg(p_msg);
589 }
590
591 /*******************************************************************************
592 *
593 * Function bta_av_adjust_seps_idx
594 *
595 * Description adjust the sep_idx
596 *
597 * Returns
598 *
599 ******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb,uint8_t avdt_handle)600 static void bta_av_adjust_seps_idx(tBTA_AV_SCB* p_scb, uint8_t avdt_handle) {
601 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
602 A2DP_CodecName(p_scb->cfg.codec_info));
603 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
604 APPL_TRACE_DEBUG("%s: av_handle: %d codec: %s", __func__,
605 p_scb->seps[i].av_handle,
606 A2DP_CodecName(p_scb->seps[i].codec_info));
607 if (p_scb->seps[i].av_handle && (p_scb->seps[i].av_handle == avdt_handle) &&
608 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
609 p_scb->cfg.codec_info)) {
610 p_scb->sep_idx = i;
611 p_scb->avdt_handle = p_scb->seps[i].av_handle;
612 break;
613 }
614 }
615 }
616
617 /*******************************************************************************
618 *
619 * Function bta_av_switch_role
620 *
621 * Description Switch role was not started and a timer was started.
622 * another attempt to switch role now - still opening.
623 *
624 * Returns void
625 *
626 ******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)627 void bta_av_switch_role(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
628 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
629 tBTA_AV_API_OPEN* p_buf = &p_scb->q_info.open;
630
631 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x", __func__,
632 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
633 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
634 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
635
636 /* clear the masks set when the timer is started */
637 p_scb->wait &=
638 ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START);
639
640 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
641 if (bta_av_switch_if_needed(p_scb) ||
642 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
643 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
644 } else {
645 /* this should not happen in theory. Just in case...
646 * continue to do_disc_a2dp */
647 switch_res = BTA_AV_RS_DONE;
648 }
649 } else {
650 /* report failure on OPEN */
651 APPL_TRACE_ERROR("%s: peer %s role switch failed (wait=0x%x)", __func__,
652 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
653 switch_res = BTA_AV_RS_FAIL;
654 }
655
656 if (switch_res != BTA_AV_RS_NONE) {
657 if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) {
658 bta_av_cb.rs_idx = 0;
659 }
660 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
661 p_scb->q_tag = 0;
662 p_buf->switch_res = switch_res;
663 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)p_buf);
664 }
665 }
666
667 /*******************************************************************************
668 *
669 * Function bta_av_role_res
670 *
671 * Description Handle the role changed event
672 *
673 *
674 * Returns void
675 *
676 ******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)677 void bta_av_role_res(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
678 bool initiator = false;
679
680 APPL_TRACE_DEBUG("%s: peer %s q_tag:%d, wait:0x%x, role:0x%x", __func__,
681 p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
682 p_scb->wait, p_scb->role);
683 if (p_scb->role & BTA_AV_ROLE_START_INT) initiator = true;
684
685 if (p_scb->q_tag == BTA_AV_Q_TAG_START) {
686 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) {
687 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
688 if (p_data->role_res.hci_status != HCI_SUCCESS) {
689 p_scb->role &= ~BTA_AV_ROLE_START_INT;
690 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
691 /* start failed because of role switch. */
692 tBTA_AV_START start;
693 start.chnl = p_scb->chnl;
694 start.status = BTA_AV_FAIL_ROLE;
695 start.hndl = p_scb->hndl;
696 start.initiator = initiator;
697 tBTA_AV bta_av_data;
698 bta_av_data.start = start;
699 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
700 } else {
701 bta_av_start_ok(p_scb, p_data);
702 }
703 } else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
704 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
705 } else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
706 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) {
707 p_scb->role &= ~BTA_AV_ROLE_START_INT;
708 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
709
710 if (p_data->role_res.hci_status != HCI_SUCCESS) {
711 /* Open failed because of role switch. */
712 tBTA_AV_OPEN av_open;
713 av_open.bd_addr = p_scb->PeerAddress();
714 av_open.chnl = p_scb->chnl;
715 av_open.hndl = p_scb->hndl;
716 av_open.status = BTA_AV_FAIL_ROLE;
717 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
718 av_open.sep = AVDT_TSEP_SNK;
719 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
720 av_open.sep = AVDT_TSEP_SRC;
721 }
722 tBTA_AV bta_av_data;
723 bta_av_data.open = av_open;
724 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
725 } else {
726 /* Continue av open process */
727 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
728 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open));
729 }
730 } else {
731 APPL_TRACE_WARNING(
732 "%s: peer %s unexpected role switch event: q_tag = %d wait = 0x%x",
733 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
734 p_scb->wait);
735 }
736 }
737
738 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x, role:0x%x", __func__,
739 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
740 p_scb->role);
741 }
742
743 /*******************************************************************************
744 *
745 * Function bta_av_delay_co
746 *
747 * Description Call the delay call-out function to report the delay report
748 * from SNK
749 *
750 * Returns void
751 *
752 ******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)753 void bta_av_delay_co(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
754 APPL_TRACE_DEBUG("%s: peer %s handle:%d delay:%d", __func__,
755 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
756 p_data->str_msg.msg.delay_rpt_cmd.delay);
757 p_scb->p_cos->delay(p_scb->hndl, p_scb->PeerAddress(),
758 p_data->str_msg.msg.delay_rpt_cmd.delay);
759 }
760
761 /*******************************************************************************
762 *
763 * Function bta_av_do_disc_a2dp
764 *
765 * Description Do service discovery for A2DP.
766 *
767 * Returns void
768 *
769 ******************************************************************************/
bta_av_do_disc_a2dp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)770 void bta_av_do_disc_a2dp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
771 bool ok_continue = false;
772 tA2DP_SDP_DB_PARAMS db_params;
773 uint16_t attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
774 ATTR_ID_PROTOCOL_DESC_LIST,
775 ATTR_ID_BT_PROFILE_DESC_LIST};
776 uint16_t sdp_uuid = 0; /* UUID for which SDP has to be done */
777
778 APPL_TRACE_DEBUG("%s: peer_addr: %s use_rc: %d switch_res:%d, oc:%d",
779 __func__, p_data->api_open.bd_addr.ToString().c_str(),
780 p_data->api_open.use_rc, p_data->api_open.switch_res,
781 bta_av_cb.audio_open_cnt);
782
783 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
784
785 switch (p_data->api_open.switch_res) {
786 case BTA_AV_RS_NONE:
787 if (bta_av_switch_if_needed(p_scb) ||
788 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
789 /* waiting for role switch result. save the api to control block */
790 memcpy(&p_scb->q_info.open, &p_data->api_open,
791 sizeof(tBTA_AV_API_OPEN));
792 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
793 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
794 } else {
795 ok_continue = true;
796 }
797 break;
798
799 case BTA_AV_RS_FAIL:
800 /* report a new failure event */
801 p_scb->open_status = BTA_AV_FAIL_ROLE;
802 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
803 p_scb->PeerAddress().ToString().c_str());
804 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
805 break;
806
807 case BTA_AV_RS_OK:
808 p_data = (tBTA_AV_DATA*)&p_scb->q_info.open;
809 /* continue to open if link role is ok */
810 if (bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
811 ok_continue = true;
812 } else {
813 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
814 }
815 break;
816
817 case BTA_AV_RS_DONE:
818 ok_continue = true;
819 break;
820 }
821
822 APPL_TRACE_DEBUG("%s: ok_continue: %d wait:0x%x, q_tag: %d", __func__,
823 ok_continue, p_scb->wait, p_scb->q_tag);
824 if (!ok_continue) return;
825
826 /* clear the role switch bits */
827 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
828
829 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) {
830 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
831 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
832 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
833 }
834
835 if (bta_av_cb.features & BTA_AV_FEAT_MASTER) {
836 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
837
838 if (bta_av_cb.audio_open_cnt == 1) {
839 /* there's already an A2DP connection. do not allow switch */
840 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
841 }
842 }
843 /* store peer addr other parameters */
844 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
845 p_scb->sec_mask = p_data->api_open.sec_mask;
846 p_scb->use_rc = p_data->api_open.use_rc;
847
848 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
849
850 /* only one A2DP find service is active at a time */
851 bta_av_cb.handle = p_scb->hndl;
852
853 /* set up parameters */
854 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
855 db_params.num_attr = 3;
856 db_params.p_attrs = attr_list;
857 p_scb->uuid_int = p_data->api_open.uuid;
858 p_scb->sdp_discovery_started = true;
859 if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
860 sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
861 else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
862 sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
863
864 APPL_TRACE_DEBUG(
865 "%s: Initiate SDP discovery for peer %s : uuid_int=0x%x "
866 "sdp_uuid=0x%x",
867 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
868 sdp_uuid);
869 tA2DP_STATUS find_service_status = A2DP_FindService(
870 sdp_uuid, p_scb->PeerAddress(), &db_params, bta_av_a2dp_sdp_cback);
871 if (find_service_status != A2DP_SUCCESS) {
872 APPL_TRACE_ERROR(
873 "%s: A2DP_FindService() failed for peer %s uuid_int=0x%x "
874 "sdp_uuid=0x%x : status=%d",
875 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
876 sdp_uuid, find_service_status);
877 bta_av_a2dp_sdp_cback(false, nullptr, RawAddress::kEmpty);
878 }
879 }
880
881 /*******************************************************************************
882 *
883 * Function bta_av_cleanup
884 *
885 * Description cleanup AV stream control block.
886 *
887 * Returns void
888 *
889 ******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)890 void bta_av_cleanup(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
891 tBTA_AV_CONN_CHG msg;
892 uint8_t role = BTA_AV_ROLE_AD_INT;
893
894 LOG_INFO(LOG_TAG, "%s peer %s", __func__,
895 p_scb->PeerAddress().ToString().c_str());
896
897 /* free any buffers */
898 p_scb->sdp_discovery_started = false;
899 p_scb->SetAvdtpVersion(0);
900
901 /* initialize some control block variables */
902 p_scb->open_status = BTA_AV_SUCCESS;
903
904 /* if de-registering shut everything down */
905 msg.hdr.layer_specific = p_scb->hndl;
906 p_scb->started = false;
907 p_scb->offload_started = false;
908 p_scb->use_rtp_header_marker_bit = false;
909 p_scb->cong = false;
910 p_scb->role = role;
911 p_scb->cur_psc_mask = 0;
912 p_scb->wait = 0;
913 p_scb->num_disc_snks = 0;
914 alarm_cancel(p_scb->avrc_ct_timer);
915
916 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
917 vendor_get_interface()->send_command(
918 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
919 if (p_scb->offload_start_pending) {
920 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
921 tBTA_AV bta_av_data;
922 bta_av_data.status = status;
923 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
924 }
925 */
926
927 p_scb->offload_start_pending = false;
928
929 if (p_scb->deregistering) {
930 /* remove stream */
931 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
932 if (p_scb->seps[i].av_handle) AVDT_RemoveStream(p_scb->seps[i].av_handle);
933 p_scb->seps[i].av_handle = 0;
934 }
935
936 bta_av_dereg_comp((tBTA_AV_DATA*)&msg);
937 } else {
938 /* report stream closed to main SM */
939 msg.is_up = false;
940 msg.peer_addr = p_scb->PeerAddress();
941 bta_av_conn_chg((tBTA_AV_DATA*)&msg);
942 }
943 }
944
945 /*******************************************************************************
946 *
947 * Function bta_av_free_sdb
948 *
949 * Description Free service discovery db buffer.
950 *
951 * Returns void
952 *
953 ******************************************************************************/
bta_av_free_sdb(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)954 void bta_av_free_sdb(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
955 p_scb->sdp_discovery_started = false;
956 }
957
958 /*******************************************************************************
959 *
960 * Function bta_av_config_ind
961 *
962 * Description Handle a stream configuration indication from the peer.
963 *
964 * Returns void
965 *
966 ******************************************************************************/
bta_av_config_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)967 void bta_av_config_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
968 tBTA_AV_CI_SETCONFIG setconfig{};
969 tAVDT_SEP_INFO* p_info;
970 const AvdtpSepConfig* p_evt_cfg = &p_data->str_msg.cfg;
971 uint8_t psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
972 uint8_t
973 local_sep; /* sep type of local handle on which connection was received */
974 tBTA_AV_STR_MSG* p_msg = (tBTA_AV_STR_MSG*)p_data;
975
976 local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
977 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
978
979 APPL_TRACE_DEBUG("%s: peer %s handle:%d local_sep:%d", __func__,
980 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
981 local_sep);
982 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
983 A2DP_CodecInfoString(p_evt_cfg->codec_info).c_str());
984
985 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
986 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
987
988 /* Clear collision mask */
989 p_scb->coll_mask = 0;
990 alarm_cancel(bta_av_cb.accept_signalling_timer);
991
992 /* if no codec parameters in configuration, fail */
993 if ((p_evt_cfg->num_codec == 0) ||
994 /* or the peer requests for a service we do not support */
995 ((psc_mask != p_scb->cfg.psc_mask) &&
996 (psc_mask != (p_scb->cfg.psc_mask & ~AVDT_PSC_DELAY_RPT)))) {
997 setconfig.hndl = p_scb->hndl; /* we may not need this */
998 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
999 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT,
1000 (tBTA_AV_DATA*)&setconfig);
1001 } else {
1002 p_info = &p_scb->sep_info[0];
1003 p_info->in_use = 0;
1004 p_info->media_type = p_scb->media_type;
1005 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
1006
1007 /* Sep type of Peer will be oppsite role to our local sep */
1008 if (local_sep == AVDT_TSEP_SRC)
1009 p_info->tsep = AVDT_TSEP_SNK;
1010 else if (local_sep == AVDT_TSEP_SNK)
1011 p_info->tsep = AVDT_TSEP_SRC;
1012
1013 p_scb->role |= BTA_AV_ROLE_AD_ACP;
1014 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
1015 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
1016 p_scb->use_rc = true;
1017 else
1018 p_scb->use_rc = false;
1019
1020 p_scb->num_seps = 1;
1021 p_scb->sep_info_idx = 0;
1022 APPL_TRACE_DEBUG("%s: SEID: %d use_rc: %d cur_psc_mask:0x%x", __func__,
1023 p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
1024 /* in case of A2DP SINK this is the first time peer data is being sent to
1025 * co functions */
1026 if (local_sep == AVDT_TSEP_SNK) {
1027 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
1028 p_evt_cfg->codec_info, p_info->seid,
1029 p_evt_cfg->num_protect, p_evt_cfg->protect_info,
1030 AVDT_TSEP_SNK, p_msg->handle);
1031 } else {
1032 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
1033 p_evt_cfg->codec_info, p_info->seid,
1034 p_evt_cfg->num_protect, p_evt_cfg->protect_info,
1035 AVDT_TSEP_SRC, p_msg->handle);
1036 }
1037 }
1038 }
1039
1040 /*******************************************************************************
1041 *
1042 * Function bta_av_disconnect_req
1043 *
1044 * Description Disconnect AVDTP connection.
1045 *
1046 * Returns void
1047 *
1048 ******************************************************************************/
bta_av_disconnect_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1049 void bta_av_disconnect_req(tBTA_AV_SCB* p_scb,
1050 UNUSED_ATTR tBTA_AV_DATA* p_data) {
1051 tBTA_AV_RCB* p_rcb;
1052
1053 APPL_TRACE_WARNING("%s: conn_lcb: 0x%x peer_addr: %s", __func__,
1054 bta_av_cb.conn_lcb,
1055 p_scb->PeerAddress().ToString().c_str());
1056
1057 alarm_cancel(bta_av_cb.link_signalling_timer);
1058 alarm_cancel(p_scb->avrc_ct_timer);
1059
1060 if (bta_av_cb.conn_lcb) {
1061 p_rcb = bta_av_get_rcb_by_shdl((uint8_t)(p_scb->hdi + 1));
1062 if (p_rcb) bta_av_del_rc(p_rcb);
1063 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
1064 } else {
1065 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1066 }
1067 }
1068
1069 /*******************************************************************************
1070 *
1071 * Function bta_av_security_req
1072 *
1073 * Description Send an AVDTP security request.
1074 *
1075 * Returns void
1076 *
1077 ******************************************************************************/
bta_av_security_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1078 void bta_av_security_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1079 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1080 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1081 p_data->api_protect_req.len);
1082 }
1083 }
1084
1085 /*******************************************************************************
1086 *
1087 * Function bta_av_security_rsp
1088 *
1089 * Description Send an AVDTP security response.
1090 *
1091 * Returns void
1092 *
1093 ******************************************************************************/
bta_av_security_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1094 void bta_av_security_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1095 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1096 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label,
1097 p_data->api_protect_rsp.error_code,
1098 p_data->api_protect_rsp.p_data,
1099 p_data->api_protect_rsp.len);
1100 } else {
1101 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
1102 0);
1103 }
1104 }
1105
1106 /*******************************************************************************
1107 *
1108 * Function bta_av_setconfig_rsp
1109 *
1110 * Description setconfig is OK
1111 *
1112 * Returns void
1113 *
1114 ******************************************************************************/
bta_av_setconfig_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1115 void bta_av_setconfig_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1116 uint8_t num = p_data->ci_setconfig.num_seid + 1;
1117 uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
1118 uint8_t* p_seid = p_data->ci_setconfig.p_seid;
1119 int i;
1120 uint8_t local_sep;
1121
1122 /* we like this codec_type. find the sep_idx */
1123 local_sep = bta_av_get_scb_sep_type(p_scb, avdt_handle);
1124 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1125 APPL_TRACE_DEBUG("%s: peer %s handle: sep_idx: %d cur_psc_mask:0x%x",
1126 __func__, p_scb->PeerAddress().ToString().c_str(),
1127 p_scb->sep_idx, p_scb->cur_psc_mask);
1128
1129 if ((AVDT_TSEP_SNK == local_sep) &&
1130 (p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
1131 (p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
1132 tBTA_AV_MEDIA av_sink_codec_info;
1133 av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
1134 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1135 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(BTA_AV_SINK_MEDIA_CFG_EVT,
1136 &av_sink_codec_info);
1137 }
1138
1139 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label,
1140 p_data->ci_setconfig.err_code, p_data->ci_setconfig.category);
1141
1142 alarm_cancel(bta_av_cb.link_signalling_timer);
1143
1144 if (p_data->ci_setconfig.err_code == AVDT_SUCCESS) {
1145 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1146 if (p_data->ci_setconfig.recfg_needed)
1147 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1148 APPL_TRACE_DEBUG("%s: recfg_needed:%d role:0x%x num:%d", __func__,
1149 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1150 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1151 * getcap on these SEID */
1152 p_scb->num_seps = num;
1153
1154 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1155 p_scb->SetAvdtpVersion(AVDT_VERSION_1_3);
1156
1157 if (A2DP_GetCodecType(p_scb->cfg.codec_info) == A2DP_MEDIA_CT_SBC ||
1158 num > 1) {
1159 /* if SBC is used by the SNK as INT, discover req is not sent in
1160 * bta_av_config_ind.
1161 * call disc_res now */
1162 /* this is called in A2DP SRC path only, In case of SINK we don't need it
1163 */
1164 if (local_sep == AVDT_TSEP_SRC)
1165 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), num, num, 0,
1166 UUID_SERVCLASS_AUDIO_SOURCE);
1167 } else {
1168 /* we do not know the peer device and it is using non-SBC codec
1169 * we need to know all the SEPs on SNK */
1170 bta_av_discover_req(p_scb, NULL);
1171 return;
1172 }
1173
1174 for (i = 1; i < num; i++) {
1175 APPL_TRACE_DEBUG("%s: sep_info[%d] SEID: %d", __func__, i, p_seid[i - 1]);
1176 /* initialize the sep_info[] to get capabilities */
1177 p_scb->sep_info[i].in_use = false;
1178 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1179 p_scb->sep_info[i].media_type = p_scb->media_type;
1180 p_scb->sep_info[i].seid = p_seid[i - 1];
1181 }
1182
1183 /* only in case of local sep as SRC we need to look for other SEPs, In case
1184 * of SINK we don't */
1185 if (local_sep == AVDT_TSEP_SRC) {
1186 /* Make sure UUID has been initialized... */
1187 if (p_scb->uuid_int == 0) p_scb->uuid_int = p_scb->open_api.uuid;
1188 bta_av_next_getcap(p_scb, p_data);
1189 }
1190 }
1191 }
1192
1193 /*******************************************************************************
1194 *
1195 * Function bta_av_str_opened
1196 *
1197 * Description Stream opened OK (incoming/outgoing).
1198 *
1199 * Returns void
1200 *
1201 ******************************************************************************/
bta_av_str_opened(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1202 void bta_av_str_opened(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1203 tBTA_AV_CONN_CHG msg;
1204 uint8_t* p;
1205
1206 APPL_TRACE_DEBUG("%s: peer %s handle: %d", __func__,
1207 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1208
1209 msg.hdr.layer_specific = p_scb->hndl;
1210 msg.is_up = true;
1211 msg.peer_addr = p_scb->PeerAddress();
1212 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1213 bta_av_conn_chg((tBTA_AV_DATA*)&msg);
1214 /* set the congestion flag, so AV would not send media packets by accident */
1215 p_scb->cong = true;
1216 p_scb->offload_start_pending = false;
1217
1218 p_scb->stream_mtu =
1219 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1220 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__, p_scb->l2c_cid,
1221 p_scb->stream_mtu);
1222
1223 /* Set the media channel as high priority */
1224 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_HIGH);
1225 L2CA_SetChnlFlushability(p_scb->l2c_cid, true);
1226
1227 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
1228 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1229
1230 p_scb->l2c_bufs = 0;
1231 p_scb->p_cos->open(p_scb->hndl, p_scb->PeerAddress(), p_scb->stream_mtu);
1232
1233 {
1234 /* TODO check if other audio channel is open.
1235 * If yes, check if reconfig is needed
1236 * Rigt now we do not do this kind of checking.
1237 * BTA-AV is INT for 2nd audio connection.
1238 * The application needs to make sure the current codec_info is proper.
1239 * If one audio connection is open and another SNK attempts to connect to
1240 * AV,
1241 * the connection will be rejected.
1242 */
1243 /* check if other audio channel is started. If yes, start */
1244 tBTA_AV_OPEN open;
1245 open.bd_addr = p_scb->PeerAddress();
1246 open.chnl = p_scb->chnl;
1247 open.hndl = p_scb->hndl;
1248 open.status = BTA_AV_SUCCESS;
1249 open.starting = bta_av_chk_start(p_scb);
1250 open.edr = 0;
1251 p = BTM_ReadRemoteFeatures(p_scb->PeerAddress());
1252 if (p != NULL) {
1253 if (HCI_EDR_ACL_2MPS_SUPPORTED(p)) open.edr |= BTA_AV_EDR_2MBPS;
1254 if (HCI_EDR_ACL_3MPS_SUPPORTED(p)) {
1255 if (!interop_match_addr(INTEROP_2MBPS_LINK_ONLY,
1256 &p_scb->PeerAddress())) {
1257 open.edr |= BTA_AV_EDR_3MBPS;
1258 }
1259 }
1260 }
1261 #if (BTA_AR_INCLUDED == TRUE)
1262 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr, p_scb->hdi);
1263 #endif
1264 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1265 open.sep = AVDT_TSEP_SNK;
1266 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1267 open.sep = AVDT_TSEP_SRC;
1268 }
1269
1270 tBTA_AV bta_av_data;
1271 bta_av_data.open = open;
1272 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1273 if (open.starting) {
1274 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1275 }
1276 }
1277
1278 // This code is used to pass PTS TC for AVDTP ABORT
1279 char value[PROPERTY_VALUE_MAX] = {0};
1280 if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false")) &&
1281 (!strcmp(value, "true"))) {
1282 APPL_TRACE_ERROR("%s: Calling AVDT_AbortReq", __func__);
1283 AVDT_AbortReq(p_scb->avdt_handle);
1284 }
1285 }
1286
1287 /*******************************************************************************
1288 *
1289 * Function bta_av_security_ind
1290 *
1291 * Description Handle an AVDTP security indication.
1292 *
1293 * Returns void
1294 *
1295 ******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1296 void bta_av_security_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1297 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1298
1299 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1300 tBTA_AV_PROTECT_REQ protect_req;
1301 protect_req.chnl = p_scb->chnl;
1302 protect_req.hndl = p_scb->hndl;
1303 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1304 protect_req.len = p_data->str_msg.msg.security_ind.len;
1305
1306 tBTA_AV bta_av_data;
1307 bta_av_data.protect_req = protect_req;
1308 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, &bta_av_data);
1309 }
1310 /* app doesn't support security indication; respond with failure */
1311 else {
1312 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
1313 0);
1314 }
1315 }
1316
1317 /*******************************************************************************
1318 *
1319 * Function bta_av_security_cfm
1320 *
1321 * Description Handle an AVDTP security confirm.
1322 *
1323 * Returns void
1324 *
1325 ******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1326 void bta_av_security_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1327 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1328 tBTA_AV_PROTECT_RSP protect_rsp;
1329 protect_rsp.chnl = p_scb->chnl;
1330 protect_rsp.hndl = p_scb->hndl;
1331 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1332 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1333 protect_rsp.err_code = p_data->str_msg.msg.hdr.err_code;
1334
1335 tBTA_AV bta_av_data;
1336 bta_av_data.protect_rsp = protect_rsp;
1337 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, &bta_av_data);
1338 }
1339 }
1340
1341 /*******************************************************************************
1342 *
1343 * Function bta_av_do_close
1344 *
1345 * Description Close stream.
1346 *
1347 * Returns void
1348 *
1349 ******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1350 void bta_av_do_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1351 APPL_TRACE_DEBUG("%s: p_scb->co_started=%d", __func__, p_scb->co_started);
1352
1353 /* stop stream if started */
1354 if (p_scb->co_started) {
1355 bta_av_str_stopped(p_scb, NULL);
1356 }
1357 alarm_cancel(bta_av_cb.link_signalling_timer);
1358
1359 /* close stream */
1360 p_scb->started = false;
1361 p_scb->use_rtp_header_marker_bit = false;
1362
1363 /* drop the buffers queued in L2CAP */
1364 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1365
1366 AVDT_CloseReq(p_scb->avdt_handle);
1367 /* just in case that the link is congested, link is flow controled by peer or
1368 * for whatever reason the the close request can not be sent in time.
1369 * when this timer expires, AVDT_DisconnectReq will be called to disconnect
1370 * the link
1371 */
1372 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
1373 BTA_AV_API_CLOSE_EVT, p_scb->hndl);
1374 }
1375
1376 /*******************************************************************************
1377 *
1378 * Function bta_av_connect_req
1379 *
1380 * Description Connect AVDTP connection.
1381 *
1382 * Returns void
1383 *
1384 ******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1385 void bta_av_connect_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1386 APPL_TRACE_DEBUG("%s: peer %s coll_mask:0x%x", __func__,
1387 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
1388 p_scb->sdp_discovery_started = false;
1389 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
1390 /* SNK initiated L2C connection while SRC was doing SDP. */
1391 /* Wait until timeout to check if SNK starts signalling. */
1392 APPL_TRACE_EVENT("%s: coll_mask = 0x%2X", __func__, p_scb->coll_mask);
1393 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
1394 APPL_TRACE_EVENT("%s: updated coll_mask = 0x%2X", __func__,
1395 p_scb->coll_mask);
1396 return;
1397 }
1398
1399 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sec_mask,
1400 &bta_av_proc_stream_evt);
1401 }
1402
1403 /*******************************************************************************
1404 *
1405 * Function bta_av_sdp_failed
1406 *
1407 * Description Service discovery failed.
1408 *
1409 * Returns void
1410 *
1411 ******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1412 void bta_av_sdp_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1413 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1414 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1415
1416 if (p_scb->open_status == BTA_AV_SUCCESS) {
1417 p_scb->open_status = BTA_AV_FAIL_SDP;
1418 }
1419
1420 p_scb->sdp_discovery_started = false;
1421 bta_av_str_closed(p_scb, p_data);
1422 }
1423
1424 /*******************************************************************************
1425 *
1426 * Function bta_av_disc_results
1427 *
1428 * Description Handle the AVDTP discover results. Search through the
1429 * results and find the first available stream, and get
1430 * its capabilities.
1431 *
1432 * Returns void
1433 *
1434 ******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1435 void bta_av_disc_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1436 uint8_t num_snks = 0, num_srcs = 0, i;
1437 /* our uuid in case we initiate connection */
1438 uint16_t uuid_int = p_scb->uuid_int;
1439
1440 APPL_TRACE_DEBUG("%s: peer %s handle: %d initiator UUID 0x%x", __func__,
1441 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1442 uuid_int);
1443
1444 /* store number of stream endpoints returned */
1445 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1446
1447 for (i = 0; i < p_scb->num_seps; i++) {
1448 /* steam not in use, is a sink, and is audio */
1449 if ((!p_scb->sep_info[i].in_use) &&
1450 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1451 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1452 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1453 num_snks++;
1454
1455 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1456 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1457 num_srcs++;
1458 }
1459 }
1460
1461 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1462 num_snks, num_srcs, uuid_int);
1463 p_scb->num_disc_snks = num_snks;
1464 p_scb->num_disc_srcs = num_srcs;
1465
1466 /* if we got any */
1467 if (p_scb->num_seps > 0) {
1468 /* initialize index into discovery results */
1469 p_scb->sep_info_idx = 0;
1470
1471 /* get the capabilities of the first available stream */
1472 bta_av_next_getcap(p_scb, p_data);
1473 }
1474 /* else we got discover response but with no streams; we're done */
1475 else {
1476 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1477 p_scb->PeerAddress().ToString().c_str());
1478 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1479 }
1480 }
1481
1482 /*******************************************************************************
1483 *
1484 * Function bta_av_disc_res_as_acp
1485 *
1486 * Description Handle the AVDTP discover results. Search through the
1487 * results and find the first available stream, and get
1488 * its capabilities.
1489 *
1490 * Returns void
1491 *
1492 ******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1493 void bta_av_disc_res_as_acp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1494 uint8_t num_snks = 0, i;
1495
1496 APPL_TRACE_DEBUG("%s: peer %s handle: %d", __func__,
1497 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1498
1499 /* store number of stream endpoints returned */
1500 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1501
1502 for (i = 0; i < p_scb->num_seps; i++) {
1503 /* steam is a sink, and is audio */
1504 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1505 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1506 p_scb->sep_info[i].in_use = false;
1507 num_snks++;
1508 }
1509 }
1510 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1511 num_snks, 0, UUID_SERVCLASS_AUDIO_SOURCE);
1512 p_scb->num_disc_snks = num_snks;
1513 p_scb->num_disc_srcs = 0;
1514
1515 /* if we got any */
1516 if (p_scb->num_seps > 0) {
1517 /* initialize index into discovery results */
1518 p_scb->sep_info_idx = 0;
1519
1520 /* get the capabilities of the first available stream */
1521 bta_av_next_getcap(p_scb, p_data);
1522 }
1523 /* else we got discover response but with no streams; we're done */
1524 else {
1525 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1526 p_scb->PeerAddress().ToString().c_str());
1527 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1528 }
1529 }
1530
1531 /*******************************************************************************
1532 *
1533 * Function bta_av_save_caps
1534 *
1535 * Description report the SNK SEP capabilities to application
1536 *
1537 * Returns void
1538 *
1539 ******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1540 void bta_av_save_caps(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1541 AvdtpSepConfig cfg;
1542 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1543 uint8_t old_wait = p_scb->wait;
1544 bool getcap_done = false;
1545
1546 APPL_TRACE_DEBUG(
1547 "%s: peer %s handle:%d num_seps:%d sep_info_idx:%d wait:0x%x", __func__,
1548 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl, p_scb->num_seps,
1549 p_scb->sep_info_idx, p_scb->wait);
1550 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1551 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
1552
1553 cfg = p_scb->peer_cap;
1554 /* let application know the capability of the SNK */
1555 if (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1556 &p_scb->sep_info_idx, p_info->seid, &cfg.num_protect,
1557 cfg.protect_info) != A2DP_SUCCESS) {
1558 p_scb->sep_info_idx++;
1559 APPL_TRACE_DEBUG("%s: result: next sep_info_idx:%d", __func__,
1560 p_scb->sep_info_idx);
1561 } else {
1562 // All capabilities found
1563 getcap_done = true;
1564 APPL_TRACE_DEBUG("%s: result: done sep_info_idx:%d", __func__,
1565 p_scb->sep_info_idx);
1566 }
1567 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1568 A2DP_CodecInfoString(cfg.codec_info).c_str());
1569
1570 if (p_scb->num_seps > p_scb->sep_info_idx && !getcap_done) {
1571 /* Some devices have seps at the end of the discover list, which is not */
1572 /* matching media type(video not audio). */
1573 /* In this case, we are done with getcap without sending another */
1574 /* request to AVDT. */
1575 if (!bta_av_next_getcap(p_scb, p_data)) getcap_done = true;
1576 } else {
1577 getcap_done = true;
1578 }
1579
1580 if (getcap_done) {
1581 APPL_TRACE_DEBUG("%s: getcap_done: num_seps:%d sep_info_idx:%d wait:0x%x",
1582 __func__, p_scb->num_seps, p_scb->sep_info_idx,
1583 p_scb->wait);
1584 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON | BTA_AV_WAIT_ACP_CAPS_STARTED);
1585 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) {
1586 bta_av_start_ok(p_scb, NULL);
1587 }
1588 }
1589 }
1590
1591 /*******************************************************************************
1592 *
1593 * Function bta_av_set_use_rc
1594 *
1595 * Description set to use AVRC for this stream control block.
1596 *
1597 * Returns void
1598 *
1599 ******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1600 void bta_av_set_use_rc(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1601 p_scb->use_rc = true;
1602 }
1603
1604 /*******************************************************************************
1605 *
1606 * Function bta_av_cco_close
1607 *
1608 * Description call close call-out function.
1609 *
1610 * Returns void
1611 *
1612 ******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1613 void bta_av_cco_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1614 APPL_TRACE_DEBUG("%s: peer %s handle:%d", __func__,
1615 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1616 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
1617 }
1618
1619 /*******************************************************************************
1620 *
1621 * Function bta_av_open_failed
1622 *
1623 * Description Failed to open an AVDT stream
1624 *
1625 * Returns void
1626 *
1627 ******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1628 void bta_av_open_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1629 bool is_av_opened = false;
1630 tBTA_AV_SCB* p_opened_scb = NULL;
1631 uint8_t idx;
1632
1633 APPL_TRACE_ERROR("%s: peer_addr=%s", __func__,
1634 p_scb->PeerAddress().ToString().c_str());
1635 p_scb->open_status = BTA_AV_FAIL_STREAM;
1636 bta_av_cco_close(p_scb, p_data);
1637
1638 /* check whether there is already an opened audio or video connection with the
1639 * same device */
1640 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (!is_av_opened); idx++) {
1641 p_opened_scb = bta_av_cb.p_scb[idx];
1642 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) &&
1643 (p_opened_scb->PeerAddress() == p_scb->PeerAddress()))
1644 is_av_opened = true;
1645 }
1646
1647 /* if there is already an active AV connnection with the same bd_addr,
1648 don't send disconnect req, just report the open event with
1649 BTA_AV_FAIL_GET_CAP status */
1650 if (is_av_opened) {
1651 tBTA_AV_OPEN open;
1652 open.bd_addr = p_scb->PeerAddress();
1653 open.chnl = p_scb->chnl;
1654 open.hndl = p_scb->hndl;
1655 open.status = BTA_AV_FAIL_GET_CAP;
1656 open.starting = bta_av_chk_start(p_scb);
1657 open.edr = 0;
1658 /* set the state back to initial state */
1659 bta_av_set_scb_sst_init(p_scb);
1660
1661 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1662 open.sep = AVDT_TSEP_SNK;
1663 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1664 open.sep = AVDT_TSEP_SRC;
1665 }
1666
1667 APPL_TRACE_ERROR(
1668 "%s: there is already an active connection: peer_addr=%s chnl=%d "
1669 "hndl=%d status=%d starting=%d edr=%d",
1670 __func__, open.bd_addr.ToString().c_str(), open.chnl, open.hndl,
1671 open.status, open.starting, open.edr);
1672
1673 tBTA_AV bta_av_data;
1674 bta_av_data.open = open;
1675 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1676 } else {
1677 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
1678 }
1679 }
1680
1681 /*******************************************************************************
1682 *
1683 * Function bta_av_getcap_results
1684 *
1685 * Description Handle the AVDTP get capabilities results. Check the codec
1686 * type and see if it matches ours. If it does not, get the
1687 * capabilities of the next stream, if any.
1688 *
1689 * Returns void
1690 *
1691 ******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1692 void bta_av_getcap_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1693 AvdtpSepConfig cfg = p_scb->cfg;
1694 uint8_t media_type = A2DP_GetMediaType(p_scb->peer_cap.codec_info);
1695 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1696
1697 cfg.num_codec = 1;
1698 cfg.num_protect = p_scb->peer_cap.num_protect;
1699 memcpy(cfg.codec_info, p_scb->peer_cap.codec_info, AVDT_CODEC_SIZE);
1700 memcpy(cfg.protect_info, p_scb->peer_cap.protect_info, AVDT_PROTECT_SIZE);
1701
1702 APPL_TRACE_DEBUG("%s: peer %s handle:%d num_codec:%d psc_mask=0x%x", __func__,
1703 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1704 p_scb->peer_cap.num_codec, p_scb->cfg.psc_mask);
1705 APPL_TRACE_DEBUG("%s: media type 0x%x, 0x%x", __func__, media_type,
1706 p_scb->media_type);
1707 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1708 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1709
1710 /* if codec present and we get a codec configuration */
1711 if ((p_scb->peer_cap.num_codec != 0) && (media_type == p_scb->media_type) &&
1712 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1713 &p_scb->sep_info_idx, p_info->seid,
1714 &cfg.num_protect,
1715 cfg.protect_info) == A2DP_SUCCESS)) {
1716 /* UUID for which connection was initiatied */
1717 uint16_t uuid_int = p_scb->uuid_int;
1718
1719 /* save copy of codec configuration */
1720 p_scb->cfg = cfg;
1721
1722 APPL_TRACE_DEBUG("%s: result: sep_info_idx=%d", __func__,
1723 p_scb->sep_info_idx);
1724 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1725 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1726
1727 APPL_TRACE_DEBUG("%s: initiator UUID = 0x%x", __func__, uuid_int);
1728 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1729 bta_av_adjust_seps_idx(p_scb,
1730 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1731 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1732 bta_av_adjust_seps_idx(p_scb,
1733 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1734
1735 /* use only the services peer supports */
1736 cfg.psc_mask &= p_scb->peer_cap.psc_mask;
1737 p_scb->cur_psc_mask = cfg.psc_mask;
1738 APPL_TRACE_DEBUG(
1739 "%s: peer %s handle:%d sep_idx:%d sep_info_idx:%d "
1740 "cur_psc_mask:0x%x",
1741 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1742 p_scb->sep_idx, p_scb->sep_info_idx, p_scb->cur_psc_mask);
1743
1744 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1745 (p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
1746 APPL_TRACE_DEBUG("%s: configure decoder for Sink connection", __func__);
1747 tBTA_AV_MEDIA av_sink_codec_info;
1748 av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
1749 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1750 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
1751 BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
1752 }
1753
1754 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) {
1755 A2DP_AdjustCodec(cfg.codec_info);
1756 }
1757
1758 /* open the stream */
1759 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->PeerAddress(),
1760 p_scb->hdi, p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1761 } else {
1762 /* try the next stream, if any */
1763 p_scb->sep_info_idx++;
1764 bta_av_next_getcap(p_scb, p_data);
1765 }
1766 }
1767
1768 /*******************************************************************************
1769 *
1770 * Function bta_av_setconfig_rej
1771 *
1772 * Description Send AVDTP set config reject.
1773 *
1774 * Returns void
1775 *
1776 ******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1777 void bta_av_setconfig_rej(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1778 tBTA_AV_REJECT reject;
1779 uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
1780
1781 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1782 APPL_TRACE_DEBUG("%s: sep_idx: %d", __func__, p_scb->sep_idx);
1783 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1784
1785 reject.bd_addr = p_data->str_msg.bd_addr;
1786 reject.hndl = p_scb->hndl;
1787
1788 tBTA_AV bta_av_data;
1789 bta_av_data.reject = reject;
1790 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, &bta_av_data);
1791 }
1792
1793 /*******************************************************************************
1794 *
1795 * Function bta_av_discover_req
1796 *
1797 * Description Send an AVDTP discover request to the peer.
1798 *
1799 * Returns void
1800 *
1801 ******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1802 void bta_av_discover_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1803 /* send avdtp discover request */
1804
1805 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
1806 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
1807 }
1808
1809 /*******************************************************************************
1810 *
1811 * Function bta_av_conn_failed
1812 *
1813 * Description AVDTP connection failed.
1814 *
1815 * Returns void
1816 *
1817 ******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1818 void bta_av_conn_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1819 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1820 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1821
1822 p_scb->open_status = BTA_AV_FAIL_STREAM;
1823 bta_av_str_closed(p_scb, p_data);
1824 }
1825
1826 /*******************************************************************************
1827 *
1828 * Function bta_av_do_start
1829 *
1830 * Description Start stream.
1831 *
1832 * Returns void
1833 *
1834 ******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1835 void bta_av_do_start(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1836 uint8_t clear_policy = 0;
1837 uint8_t cur_role;
1838
1839 LOG_INFO(LOG_TAG,
1840 "%s: peer %s sco_occupied:%s role:0x%x started:%s wait:0x%x",
1841 __func__, p_scb->PeerAddress().ToString().c_str(),
1842 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1843 logbool(p_scb->started).c_str(), p_scb->wait);
1844 if (bta_av_cb.sco_occupied) {
1845 bta_av_start_failed(p_scb, p_data);
1846 return;
1847 }
1848
1849 /* disallow role switch during streaming, only if we are the master role
1850 * i.e. allow role switch, if we are slave.
1851 * It would not hurt us, if the peer device wants us to be master */
1852 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
1853 (cur_role == BTM_ROLE_MASTER)) {
1854 clear_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1855 }
1856
1857 bta_sys_clear_policy(BTA_ID_AV, clear_policy, p_scb->PeerAddress());
1858
1859 if (p_scb->started) {
1860 p_scb->role |= BTA_AV_ROLE_START_INT;
1861 if (p_scb->wait != 0) {
1862 LOG_WARN(
1863 LOG_TAG,
1864 "%s: peer %s start stream request ignored: "
1865 "already waiting: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1866 __func__, p_scb->PeerAddress().ToString().c_str(),
1867 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1868 logbool(p_scb->started).c_str(), p_scb->wait);
1869 return;
1870 }
1871 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
1872 notify_start_failed(p_scb);
1873 } else {
1874 bta_av_start_ok(p_scb, NULL);
1875 }
1876 return;
1877 }
1878
1879 if ((p_scb->role & BTA_AV_ROLE_START_INT) != 0) {
1880 LOG_WARN(
1881 LOG_TAG,
1882 "%s: peer %s start stream request ignored: "
1883 "already initiated: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1884 __func__, p_scb->PeerAddress().ToString().c_str(),
1885 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1886 logbool(p_scb->started).c_str(), p_scb->wait);
1887 return;
1888 }
1889
1890 p_scb->role |= BTA_AV_ROLE_START_INT;
1891 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1892 uint16_t result = AVDT_StartReq(&p_scb->avdt_handle, 1);
1893 if (result != AVDT_SUCCESS) {
1894 LOG_ERROR(LOG_TAG, "%s: AVDT_StartReq failed for peer %s result:%d",
1895 __func__, p_scb->PeerAddress().ToString().c_str(), result);
1896 }
1897 LOG_INFO(LOG_TAG,
1898 "%s: peer %s start requested: sco_occupied:%s role:0x%x "
1899 "started:%s wait:0x%x",
1900 __func__, p_scb->PeerAddress().ToString().c_str(),
1901 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1902 logbool(p_scb->started).c_str(), p_scb->wait);
1903 }
1904
1905 /*******************************************************************************
1906 *
1907 * Function bta_av_str_stopped
1908 *
1909 * Description Stream stopped.
1910 *
1911 * Returns void
1912 *
1913 ******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1914 void bta_av_str_stopped(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1915 tBTA_AV_SUSPEND suspend_rsp;
1916 uint8_t start = p_scb->started;
1917 bool sus_evt = true;
1918 BT_HDR* p_buf;
1919 uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
1920
1921 APPL_TRACE_ERROR(
1922 "%s: peer %s handle:%d audio_open_cnt:%d, p_data %p start:%d", __func__,
1923 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1924 bta_av_cb.audio_open_cnt, p_data, start);
1925
1926 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1927 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
1928 bta_av_cb.audio_open_cnt == 1) {
1929 set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
1930 }
1931 bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
1932
1933 if (p_scb->co_started) {
1934 if (p_scb->offload_started) {
1935 bta_av_vendor_offload_stop();
1936 p_scb->offload_started = false;
1937 }
1938
1939 bta_av_stream_chg(p_scb, false);
1940 p_scb->co_started = false;
1941
1942 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
1943 L2CA_SetFlushTimeout(p_scb->PeerAddress(), L2CAP_DEFAULT_FLUSH_TO);
1944 }
1945
1946 /* if q_info.a2dp_list is not empty, drop it now */
1947 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
1948 while (!list_is_empty(p_scb->a2dp_list)) {
1949 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
1950 list_remove(p_scb->a2dp_list, p_buf);
1951 osi_free(p_buf);
1952 }
1953
1954 /* drop the audio buffers queued in L2CAP */
1955 if (p_data && p_data->api_stop.flush)
1956 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1957 }
1958
1959 suspend_rsp.chnl = p_scb->chnl;
1960 suspend_rsp.hndl = p_scb->hndl;
1961
1962 if (p_data && p_data->api_stop.suspend) {
1963 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, sup:%d", __func__,
1964 p_scb->PeerAddress().ToString().c_str(), start,
1965 p_scb->suspend_sup);
1966 if ((start) && (p_scb->suspend_sup)) {
1967 sus_evt = false;
1968 p_scb->l2c_bufs = 0;
1969 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
1970 }
1971
1972 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is
1973 * true*/
1974 if ((sus_evt) && (p_scb->state != BTA_AV_RCFG_SST)) {
1975 suspend_rsp.status = BTA_AV_SUCCESS;
1976 suspend_rsp.initiator = true;
1977 tBTA_AV bta_av_data;
1978 bta_av_data.suspend = suspend_rsp;
1979 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
1980 }
1981 } else {
1982 suspend_rsp.status = BTA_AV_SUCCESS;
1983 suspend_rsp.initiator = true;
1984 APPL_TRACE_EVENT("%s: status %d", __func__, suspend_rsp.status);
1985
1986 // Send STOP_EVT event only if not in reconfiguring state.
1987 // However, we should send STOP_EVT if we are reconfiguring when taking
1988 // the Close->Configure->Open->Start path.
1989 if (p_scb->state != BTA_AV_RCFG_SST ||
1990 (p_data && p_data->api_stop.reconfig_stop)) {
1991 tBTA_AV bta_av_data;
1992 bta_av_data.suspend = suspend_rsp;
1993 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, &bta_av_data);
1994 }
1995 }
1996 }
1997
1998 /*******************************************************************************
1999 *
2000 * Function bta_av_reconfig
2001 *
2002 * Description process the reconfigure request.
2003 * save the parameter in control block and
2004 * suspend, reconfigure or close the stream
2005 *
2006 * Returns void
2007 *
2008 ******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2009 void bta_av_reconfig(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2010 AvdtpSepConfig* p_cfg;
2011 tBTA_AV_API_STOP stop;
2012 tBTA_AV_API_RCFG* p_rcfg = &p_data->api_reconfig;
2013
2014 APPL_TRACE_DEBUG("%s: r:%d, s:%d idx: %d (o:%d)", __func__, p_scb->recfg_sup,
2015 p_scb->suspend_sup, p_scb->rcfg_idx, p_scb->sep_info_idx);
2016
2017 p_scb->num_recfg = 0;
2018 /* store the new configuration in control block */
2019 p_cfg = &p_scb->cfg;
2020
2021 alarm_cancel(p_scb->avrc_ct_timer);
2022
2023 APPL_TRACE_DEBUG(
2024 "%s: p_scb->sep_info_idx=%d p_scb->rcfg_idx=%d p_rcfg->sep_info_idx=%d",
2025 __func__, p_scb->sep_info_idx, p_scb->rcfg_idx, p_rcfg->sep_info_idx);
2026 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2027 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
2028 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2029 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2030 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2031 A2DP_CodecInfoString(p_rcfg->codec_info).c_str());
2032
2033 p_cfg->num_protect = p_rcfg->num_protect;
2034 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
2035 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
2036 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2037 p_cfg->psc_mask = p_scb->cur_psc_mask;
2038
2039 // If the requested SEP index is same as the current one, then we
2040 // can Suspend->Reconfigure->Start.
2041 // Otherwise, we have to Close->Configure->Open->Start or
2042 // Close->Configure->Open for streams that are / are not started.
2043 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && p_rcfg->suspend &&
2044 p_scb->recfg_sup && p_scb->suspend_sup) {
2045 if (p_scb->started) {
2046 // Suspend->Reconfigure->Start
2047 stop.flush = false;
2048 stop.suspend = true;
2049 stop.reconfig_stop = false;
2050 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2051 } else {
2052 // Reconfigure
2053 APPL_TRACE_DEBUG("%s: reconfig", __func__);
2054 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2055 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2056 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2057 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2058 }
2059 } else {
2060 // Close the stream first, and then Configure it
2061 APPL_TRACE_DEBUG("%s: Close/Open started: %d state: %d num_protect: %d",
2062 __func__, p_scb->started, p_scb->state,
2063 p_cfg->num_protect);
2064 if (p_scb->started) {
2065 // Close->Configure->Open->Start
2066 if ((p_scb->rcfg_idx != p_scb->sep_info_idx) && p_scb->recfg_sup) {
2067 // Make sure we trigger STOP_EVT when taking the longer road to
2068 // reconfiguration, otherwise we don't call Start.
2069 stop.flush = false;
2070 stop.suspend = false;
2071 stop.reconfig_stop = true;
2072 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2073 } else {
2074 bta_av_str_stopped(p_scb, NULL);
2075 }
2076 p_scb->started = false;
2077 } else {
2078 // Close->Configure->Open
2079 bta_av_str_stopped(p_scb, NULL);
2080 }
2081 // Drop the buffers queued in L2CAP
2082 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2083 AVDT_CloseReq(p_scb->avdt_handle);
2084 }
2085 }
2086
2087 /*******************************************************************************
2088 *
2089 * Function bta_av_data_path
2090 *
2091 * Description Handle stream data path.
2092 *
2093 * Returns void
2094 *
2095 ******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2096 void bta_av_data_path(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2097 BT_HDR* p_buf = NULL;
2098 uint32_t timestamp;
2099 bool new_buf = false;
2100 uint8_t m_pt = 0x60;
2101 tAVDT_DATA_OPT_MASK opt;
2102
2103 if (p_scb->cong) return;
2104
2105 if (p_scb->use_rtp_header_marker_bit) {
2106 m_pt |= AVDT_MARKER_SET;
2107 }
2108
2109 // Always get the current number of bufs que'd up
2110 p_scb->l2c_bufs =
2111 (uint8_t)L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2112
2113 if (!list_is_empty(p_scb->a2dp_list)) {
2114 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
2115 list_remove(p_scb->a2dp_list, p_buf);
2116 /* use q_info.a2dp data, read the timestamp */
2117 timestamp = *(uint32_t*)(p_buf + 1);
2118 } else {
2119 new_buf = true;
2120 /* A2DP_list empty, call co_data, dup data to other channels */
2121 p_buf = p_scb->p_cos->data(p_scb->cfg.codec_info, ×tamp);
2122
2123 if (p_buf) {
2124 /* use the offset area for the time stamp */
2125 *(uint32_t*)(p_buf + 1) = timestamp;
2126
2127 /* dup the data to other channels */
2128 bta_av_dup_audio_buf(p_scb, p_buf);
2129 }
2130 }
2131
2132 if (p_buf) {
2133 if (p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) {
2134 /* There's a buffer, just queue it to L2CAP.
2135 * There's no need to increment it here, it is always read from
2136 * L2CAP (see above).
2137 */
2138
2139 /* opt is a bit mask, it could have several options set */
2140 opt = AVDT_DATA_OPT_NONE;
2141 if (p_scb->no_rtp_header) {
2142 opt |= AVDT_DATA_OPT_NO_RTP;
2143 }
2144
2145 //
2146 // Fragment the payload if larger than the MTU.
2147 // NOTE: The fragmentation is RTP-compatibie.
2148 //
2149 size_t extra_fragments_n = 0;
2150 if (p_buf->len > 0) {
2151 extra_fragments_n = (p_buf->len / p_scb->stream_mtu) +
2152 ((p_buf->len % p_scb->stream_mtu) ? 1 : 0) - 1;
2153 }
2154 std::vector<BT_HDR*> extra_fragments;
2155 extra_fragments.reserve(extra_fragments_n);
2156
2157 uint8_t* data_begin = (uint8_t*)(p_buf + 1) + p_buf->offset;
2158 uint8_t* data_end = (uint8_t*)(p_buf + 1) + p_buf->offset + p_buf->len;
2159 while (extra_fragments_n-- > 0) {
2160 data_begin += p_scb->stream_mtu;
2161 size_t fragment_len = data_end - data_begin;
2162 if (fragment_len > p_scb->stream_mtu) fragment_len = p_scb->stream_mtu;
2163
2164 BT_HDR* p_buf2 = (BT_HDR*)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
2165 p_buf2->offset = p_buf->offset;
2166 p_buf2->len = 0;
2167 p_buf2->layer_specific = 0;
2168 uint8_t* packet2 =
2169 (uint8_t*)(p_buf2 + 1) + p_buf2->offset + p_buf2->len;
2170 memcpy(packet2, data_begin, fragment_len);
2171 p_buf2->len += fragment_len;
2172 extra_fragments.push_back(p_buf2);
2173 p_buf->len -= fragment_len;
2174 }
2175
2176 if (!extra_fragments.empty()) {
2177 // Reset the RTP Marker bit for all fragments except the last one
2178 m_pt &= ~AVDT_MARKER_SET;
2179 }
2180 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2181 for (size_t i = 0; i < extra_fragments.size(); i++) {
2182 if (i + 1 == extra_fragments.size()) {
2183 // Set the RTP Marker bit for the last fragment
2184 m_pt |= AVDT_MARKER_SET;
2185 }
2186 BT_HDR* p_buf2 = extra_fragments[i];
2187 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf2, timestamp, m_pt, opt);
2188 }
2189 p_scb->cong = true;
2190 } else {
2191 /* there's a buffer, but L2CAP does not seem to be moving data */
2192 if (new_buf) {
2193 /* just got this buffer from co_data,
2194 * put it in queue */
2195 list_append(p_scb->a2dp_list, p_buf);
2196 } else {
2197 /* just dequeue it from the a2dp_list */
2198 if (list_length(p_scb->a2dp_list) < 3) {
2199 /* put it back to the queue */
2200 list_prepend(p_scb->a2dp_list, p_buf);
2201 } else {
2202 /* too many buffers in a2dp_list, drop it. */
2203 bta_av_co_audio_drop(p_scb->hndl, p_scb->PeerAddress());
2204 osi_free(p_buf);
2205 }
2206 }
2207 }
2208 }
2209 }
2210
2211 /*******************************************************************************
2212 *
2213 * Function bta_av_start_ok
2214 *
2215 * Description Stream started.
2216 *
2217 * Returns void
2218 *
2219 ******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2220 void bta_av_start_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2221 bool initiator = false;
2222 bool suspend = false;
2223 uint16_t flush_to;
2224 uint8_t new_role = p_scb->role;
2225 BT_HDR hdr;
2226 uint8_t clear_policy = 0;
2227 uint8_t cur_role;
2228 uint8_t local_tsep = p_scb->seps[p_scb->sep_idx].tsep;
2229
2230 LOG_INFO(LOG_TAG, "%s: peer %s handle:%d wait:0x%x role:0x%x local_tsep:%d",
2231 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2232 p_scb->wait, p_scb->role, local_tsep);
2233
2234 p_scb->started = true;
2235
2236 if (local_tsep == AVDT_TSEP_SRC) {
2237 // The RTP Header marker bit for the A2DP Source encoder
2238 A2dpCodecConfig* codec_config =
2239 bta_av_get_a2dp_peer_current_codec(p_scb->PeerAddress());
2240 CHECK(codec_config != nullptr);
2241 p_scb->use_rtp_header_marker_bit = codec_config->useRtpHeaderMarkerBit();
2242 }
2243
2244 if (p_scb->sco_suspend) {
2245 p_scb->sco_suspend = false;
2246 }
2247
2248 if (new_role & BTA_AV_ROLE_START_INT) initiator = true;
2249
2250 /* for A2DP SINK we do not send get_caps */
2251 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle) &&
2252 (local_tsep == AVDT_TSEP_SNK)) {
2253 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2254 APPL_TRACE_DEBUG("%s: local SEP type is SNK new wait is 0x%x", __func__,
2255 p_scb->wait);
2256 }
2257 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) {
2258 /* role switch has failed */
2259 APPL_TRACE_ERROR(
2260 "%s: peer %s role switch failed: handle:%d wait:0x%x, role:0x%x",
2261 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2262 p_scb->wait, p_scb->role);
2263 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2264 p_data = (tBTA_AV_DATA*)&hdr;
2265 hdr.offset = BTA_AV_RS_FAIL;
2266 }
2267 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x use_rtp_header_marker_bit:%s",
2268 __func__, p_scb->PeerAddress().ToString().c_str(),
2269 p_scb->wait,
2270 (p_scb->use_rtp_header_marker_bit) ? "true" : "false");
2271
2272 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) {
2273 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2274 if (p_data->hdr.offset == BTA_AV_RS_FAIL) {
2275 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2276 tBTA_AV_START start;
2277 start.chnl = p_scb->chnl;
2278 start.status = BTA_AV_FAIL_ROLE;
2279 start.hndl = p_scb->hndl;
2280 start.initiator = initiator;
2281 tBTA_AV bta_av_data;
2282 bta_av_data.start = start;
2283 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2284 return;
2285 }
2286 }
2287
2288 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT))
2289 p_scb->q_tag = BTA_AV_Q_TAG_START;
2290 else {
2291 /* The wait flag may be set here while we are already master on the link */
2292 /* this could happen if a role switch complete event occurred during
2293 * reconfig */
2294 /* if we are now master on the link, there is no need to wait for the role
2295 * switch, */
2296 /* complete anymore so we can clear the wait for role switch flag */
2297 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2298 }
2299
2300 if (p_scb->wait &
2301 (BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START)) {
2302 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2303 p_scb->q_tag = BTA_AV_Q_TAG_START;
2304 }
2305
2306 if (p_scb->wait) {
2307 APPL_TRACE_ERROR("%s: peer %s wait:0x%x q_tag:%d not started", __func__,
2308 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
2309 p_scb->q_tag);
2310 /* Clear first bit of p_scb->wait and not to return from this point else
2311 * HAL layer gets blocked. And if there is delay in Get Capability response
2312 * as
2313 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is
2314 * not called
2315 * again from bta_av_save_caps.
2316 */
2317 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2318 }
2319
2320 /* tell role manager to check M/S role */
2321 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2322
2323 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2324
2325 if (p_scb->media_type == AVDT_MEDIA_TYPE_AUDIO) {
2326 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2327 * However, bta_av_stream_chg is not called to increase
2328 * bta_av_cb.audio_count yet.
2329 * If the code were to be re-arranged for some reasons, this number may need
2330 * to be changed
2331 */
2332 p_scb->co_started = bta_av_cb.audio_open_cnt;
2333 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2334 } else {
2335 flush_to = 0;
2336 }
2337 L2CA_SetFlushTimeout(p_scb->PeerAddress(), flush_to);
2338
2339 /* clear the congestion flag */
2340 p_scb->cong = false;
2341
2342 if (new_role & BTA_AV_ROLE_START_INT) {
2343 new_role &= ~BTA_AV_ROLE_START_INT;
2344 } else if ((new_role & BTA_AV_ROLE_AD_ACP) &&
2345 (new_role & BTA_AV_ROLE_SUSPEND_OPT)) {
2346 suspend = true;
2347 }
2348
2349 if (!suspend) {
2350 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2351 bta_av_stream_chg(p_scb, true);
2352 }
2353
2354 {
2355 /* If sink starts stream, disable sniff mode here */
2356 if (!initiator) {
2357 /* If souce is the master role, disable role switch during streaming.
2358 * Otherwise allow role switch, if source is slave.
2359 * Because it would not hurt source, if the peer device wants source to be
2360 * master */
2361 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
2362 (cur_role == BTM_ROLE_MASTER)) {
2363 clear_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2364 }
2365
2366 bta_sys_clear_policy(BTA_ID_AV, clear_policy, p_scb->PeerAddress());
2367 }
2368
2369 p_scb->role = new_role;
2370 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2371 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2372
2373 p_scb->no_rtp_header = false;
2374 p_scb->p_cos->start(p_scb->hndl, p_scb->PeerAddress(),
2375 p_scb->cfg.codec_info, &p_scb->no_rtp_header);
2376 p_scb->co_started = true;
2377
2378 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, role:0x%x, init %d", __func__,
2379 p_scb->PeerAddress().ToString().c_str(), suspend,
2380 p_scb->role, initiator);
2381
2382 tBTA_AV_START start;
2383 start.suspending = suspend;
2384 start.initiator = initiator;
2385 start.chnl = p_scb->chnl;
2386 start.status = BTA_AV_SUCCESS;
2387 start.hndl = p_scb->hndl;
2388 tBTA_AV bta_av_data;
2389 bta_av_data.start = start;
2390 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2391
2392 if (suspend) {
2393 tBTA_AV_API_STOP stop;
2394 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2395 p_scb->cong = true; /* do not allow the media data to go through */
2396 /* do not duplicate the media packets to this channel */
2397 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2398 p_scb->co_started = false;
2399 stop.flush = false;
2400 stop.suspend = true;
2401 stop.reconfig_stop = false;
2402 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA*)&stop);
2403 }
2404 }
2405 }
2406
2407 /*******************************************************************************
2408 *
2409 * Function bta_av_start_failed
2410 *
2411 * Description Stream start failed.
2412 *
2413 * Returns void
2414 *
2415 ******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2416 void bta_av_start_failed(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2417 uint8_t set_policy = (HCI_ENABLE_SNIFF_MODE | HCI_ENABLE_MASTER_SLAVE_SWITCH);
2418
2419 APPL_TRACE_ERROR(
2420 "%s: peer %s handle:%d audio_open_cnt:%d started:%s co_started:%d",
2421 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2422 bta_av_cb.audio_open_cnt, logbool(p_scb->started).c_str(),
2423 p_scb->co_started);
2424
2425 if (!p_scb->started && !p_scb->co_started) {
2426 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2427 notify_start_failed(p_scb);
2428 }
2429
2430 bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
2431 p_scb->sco_suspend = false;
2432 }
2433
2434 /*******************************************************************************
2435 *
2436 * Function bta_av_str_closed
2437 *
2438 * Description Stream closed.
2439 *
2440 * Returns void
2441 *
2442 ******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2443 void bta_av_str_closed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2444 tBTA_AV data;
2445 tBTA_AV_EVT event;
2446 uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
2447
2448 APPL_TRACE_WARNING(
2449 "%s: peer %s handle:%d open_status:%d chnl:%d co_started:%d", __func__,
2450 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl, p_scb->open_status,
2451 p_scb->chnl, p_scb->co_started);
2452
2453 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
2454 bta_av_cb.audio_open_cnt == 1) {
2455 set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2456 }
2457 bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
2458 if (bta_av_cb.audio_open_cnt <= 1) {
2459 /* last connection - restore the allow switch flag */
2460 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2461 }
2462
2463 if (p_scb->open_status != BTA_AV_SUCCESS) {
2464 /* must be failure when opening the stream */
2465 data.open.bd_addr = p_scb->PeerAddress();
2466 data.open.status = p_scb->open_status;
2467 data.open.chnl = p_scb->chnl;
2468 data.open.hndl = p_scb->hndl;
2469
2470 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC)
2471 data.open.sep = AVDT_TSEP_SNK;
2472 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)
2473 data.open.sep = AVDT_TSEP_SRC;
2474
2475 event = BTA_AV_OPEN_EVT;
2476 p_scb->open_status = BTA_AV_SUCCESS;
2477
2478 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2479 bta_av_cleanup(p_scb, p_data);
2480 (*bta_av_cb.p_cback)(event, &data);
2481 } else {
2482 /* do stop if we were started */
2483 if (p_scb->co_started) {
2484 bta_av_str_stopped(p_scb, NULL);
2485 }
2486
2487 {
2488 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
2489 data.close.chnl = p_scb->chnl;
2490 data.close.hndl = p_scb->hndl;
2491 event = BTA_AV_CLOSE_EVT;
2492
2493 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2494 bta_av_cleanup(p_scb, p_data);
2495 (*bta_av_cb.p_cback)(event, &data);
2496 }
2497 }
2498 }
2499
2500 /*******************************************************************************
2501 *
2502 * Function bta_av_clr_cong
2503 *
2504 * Description Clear stream congestion flag.
2505 *
2506 * Returns void
2507 *
2508 ******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2509 void bta_av_clr_cong(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2510 APPL_TRACE_DEBUG("%s", __func__);
2511 if (p_scb->co_started) {
2512 p_scb->cong = false;
2513 }
2514 }
2515
2516 /*******************************************************************************
2517 *
2518 * Function bta_av_suspend_cfm
2519 *
2520 * Description process the suspend response
2521 *
2522 * Returns void
2523 *
2524 ******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2525 void bta_av_suspend_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2526 tBTA_AV_SUSPEND suspend_rsp;
2527 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2528 uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
2529
2530 APPL_TRACE_DEBUG("%s: peer %s handle:%d audio_open_cnt:%d err_code:%d",
2531 __func__, p_scb->PeerAddress().ToString().c_str(),
2532 p_scb->hndl, bta_av_cb.audio_open_cnt, err_code);
2533
2534 if (!p_scb->started) {
2535 /* handle the condition where there is a collision of SUSPEND req from
2536 *either side
2537 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2538 */
2539 APPL_TRACE_WARNING("%s: already suspended, ignore, err_code %d", __func__,
2540 err_code);
2541 return;
2542 }
2543
2544 suspend_rsp.status = BTA_AV_SUCCESS;
2545 if (err_code && (err_code != AVDT_ERR_BAD_STATE)) {
2546 /* Disable suspend feature only with explicit rejection(not with timeout) */
2547 if (err_code != AVDT_ERR_TIMEOUT) {
2548 p_scb->suspend_sup = false;
2549 }
2550 suspend_rsp.status = BTA_AV_FAIL;
2551
2552 APPL_TRACE_ERROR("%s: suspend failed, closing connection", __func__);
2553
2554 /* SUSPEND failed. Close connection. */
2555 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2556 } else {
2557 /* only set started to false when suspend is successful */
2558 p_scb->started = false;
2559 }
2560
2561 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2562 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2563 p_scb->cong = false;
2564 }
2565
2566 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2567 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
2568 bta_av_cb.audio_open_cnt == 1) {
2569 set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2570 }
2571 bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
2572
2573 /* in case that we received suspend_ind, we may need to call co_stop here */
2574 if (p_scb->co_started) {
2575 if (p_scb->offload_started) {
2576 bta_av_vendor_offload_stop();
2577 p_scb->offload_started = false;
2578 }
2579 bta_av_stream_chg(p_scb, false);
2580
2581 {
2582 p_scb->co_started = false;
2583 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2584 }
2585 L2CA_SetFlushTimeout(p_scb->PeerAddress(), L2CAP_DEFAULT_FLUSH_TO);
2586 }
2587
2588 {
2589 suspend_rsp.chnl = p_scb->chnl;
2590 suspend_rsp.hndl = p_scb->hndl;
2591 suspend_rsp.initiator = p_data->str_msg.initiator;
2592 tBTA_AV bta_av_data;
2593 bta_av_data.suspend = suspend_rsp;
2594 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
2595 }
2596 }
2597
2598 /*******************************************************************************
2599 *
2600 * Function bta_av_rcfg_str_ok
2601 *
2602 * Description report reconfigure successful
2603 *
2604 * Returns void
2605 *
2606 ******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2607 void bta_av_rcfg_str_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2608 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2609 APPL_TRACE_DEBUG("%s: peer %s handle:%d l2c_cid:%d", __func__,
2610 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2611 p_scb->l2c_cid);
2612
2613 if (p_data != NULL) {
2614 // p_data could be NULL if the reconfig was triggered by the local device
2615 p_scb->stream_mtu =
2616 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
2617 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__,
2618 p_scb->l2c_cid, p_scb->stream_mtu);
2619 p_scb->p_cos->update_mtu(p_scb->hndl, p_scb->PeerAddress(),
2620 p_scb->stream_mtu);
2621 }
2622
2623 /* rc listen */
2624 bta_av_st_rc_timer(p_scb, NULL);
2625
2626 /* No need to keep the role bits once reconfig is done. */
2627 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2628 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2629 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2630
2631 {
2632 /* reconfigure success */
2633 tBTA_AV_RECONFIG reconfig;
2634 reconfig.status = BTA_AV_SUCCESS;
2635 reconfig.chnl = p_scb->chnl;
2636 reconfig.hndl = p_scb->hndl;
2637 tBTA_AV bta_av_data;
2638 bta_av_data.reconfig = reconfig;
2639 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2640 }
2641 }
2642
2643 /*******************************************************************************
2644 *
2645 * Function bta_av_rcfg_failed
2646 *
2647 * Description process reconfigure failed
2648 *
2649 * Returns void
2650 *
2651 ******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2652 void bta_av_rcfg_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2653 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2654 p_scb->num_recfg, bta_av_cb.conn_lcb,
2655 p_scb->PeerAddress().ToString().c_str());
2656
2657 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2658 bta_av_cco_close(p_scb, p_data);
2659 /* report failure */
2660 tBTA_AV_RECONFIG reconfig;
2661 reconfig.status = BTA_AV_FAIL_STREAM;
2662 reconfig.chnl = p_scb->chnl;
2663 reconfig.hndl = p_scb->hndl;
2664 tBTA_AV bta_av_data;
2665 bta_av_data.reconfig = reconfig;
2666 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2667 /* go to closing state */
2668 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2669 } else {
2670 /* open failed. try again */
2671 p_scb->num_recfg++;
2672 if (bta_av_cb.conn_lcb) {
2673 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
2674 } else {
2675 bta_av_connect_req(p_scb, NULL);
2676 }
2677 }
2678 }
2679
2680 /*******************************************************************************
2681 *
2682 * Function bta_av_rcfg_connect
2683 *
2684 * Description stream closed. reconnect the stream
2685 *
2686 * Returns void
2687 *
2688 ******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2689 void bta_av_rcfg_connect(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2690 APPL_TRACE_DEBUG("%s", __func__);
2691
2692 p_scb->cong = false;
2693 p_scb->num_recfg++;
2694 APPL_TRACE_DEBUG("%s: num_recfg: %d", __func__, p_scb->num_recfg);
2695 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2696 /* let bta_av_rcfg_failed report fail */
2697 bta_av_rcfg_failed(p_scb, NULL);
2698 } else {
2699 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sec_mask,
2700 &bta_av_proc_stream_evt);
2701 }
2702 }
2703
2704 /*******************************************************************************
2705 *
2706 * Function bta_av_rcfg_discntd
2707 *
2708 * Description AVDT disconnected. reconnect the stream
2709 *
2710 * Returns void
2711 *
2712 ******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2713 void bta_av_rcfg_discntd(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2714 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2715 p_scb->num_recfg, bta_av_cb.conn_lcb,
2716 p_scb->PeerAddress().ToString().c_str());
2717
2718 p_scb->num_recfg++;
2719 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2720 /* report failure */
2721 tBTA_AV_RECONFIG reconfig;
2722 reconfig.status = BTA_AV_FAIL_STREAM;
2723 reconfig.chnl = p_scb->chnl;
2724 reconfig.hndl = p_scb->hndl;
2725 tBTA_AV bta_av_data;
2726 bta_av_data.reconfig = reconfig;
2727 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2728 /* report close event & go to init state */
2729 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2730 } else {
2731 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sec_mask,
2732 &bta_av_proc_stream_evt);
2733 }
2734 }
2735
2736 /*******************************************************************************
2737 *
2738 * Function bta_av_suspend_cont
2739 *
2740 * Description received the suspend response.
2741 * continue to reconfigure the stream
2742 *
2743 * Returns void
2744 *
2745 ******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2746 void bta_av_suspend_cont(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2747 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2748
2749 APPL_TRACE_DEBUG("%s: err_code=%d", __func__, err_code);
2750
2751 p_scb->started = false;
2752 p_scb->cong = false;
2753 if (err_code) {
2754 if (AVDT_ERR_CONNECT == err_code) {
2755 /* report failure */
2756 tBTA_AV_RECONFIG reconfig;
2757 reconfig.status = BTA_AV_FAIL;
2758 tBTA_AV bta_av_data;
2759 bta_av_data.reconfig = reconfig;
2760 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2761 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
2762 p_scb->PeerAddress().ToString().c_str());
2763 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2764 } else {
2765 APPL_TRACE_ERROR("%s: suspend rejected, try close", __func__);
2766 /* Disable suspend feature only with explicit rejection(not with timeout)
2767 */
2768 if (err_code != AVDT_ERR_TIMEOUT) {
2769 p_scb->suspend_sup = false;
2770 }
2771 /* drop the buffers queued in L2CAP */
2772 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2773
2774 AVDT_CloseReq(p_scb->avdt_handle);
2775 }
2776 } else {
2777 APPL_TRACE_DEBUG("%s: calling AVDT_ReconfigReq", __func__);
2778 /* reconfig the stream */
2779
2780 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2781 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2782 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2783 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2784 }
2785 }
2786
2787 /*******************************************************************************
2788 *
2789 * Function bta_av_rcfg_cfm
2790 *
2791 * Description if reconfigure is successful, report the event
2792 * otherwise, close the stream.
2793 *
2794 * Returns void
2795 *
2796 ******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2797 void bta_av_rcfg_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2798 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2799
2800 APPL_TRACE_DEBUG("%s: err_code = %d", __func__, err_code);
2801
2802 // Disable AVDTP RECONFIGURE for blacklisted devices
2803 bool disable_avdtp_reconfigure = false;
2804 {
2805 char remote_name[BTM_MAX_REM_BD_NAME_LEN] = "";
2806 if (btif_storage_get_stored_remote_name(p_scb->PeerAddress(),
2807 remote_name)) {
2808 if (interop_match_name(INTEROP_DISABLE_AVDTP_RECONFIGURE, remote_name) ||
2809 interop_match_addr(INTEROP_DISABLE_AVDTP_RECONFIGURE,
2810 (const RawAddress*)&p_scb->PeerAddress())) {
2811 LOG_INFO(LOG_TAG,
2812 "%s: disable AVDTP RECONFIGURE: interop matched "
2813 "name %s address %s",
2814 __func__, remote_name,
2815 p_scb->PeerAddress().ToString().c_str());
2816 disable_avdtp_reconfigure = true;
2817 }
2818 }
2819 }
2820
2821 if ((err_code != 0) || disable_avdtp_reconfigure) {
2822 APPL_TRACE_ERROR("%s: reconfig rejected, try close", __func__);
2823 /* Disable reconfiguration feature only with explicit rejection(not with
2824 * timeout) */
2825 if ((err_code != AVDT_ERR_TIMEOUT) || disable_avdtp_reconfigure) {
2826 p_scb->recfg_sup = false;
2827 }
2828 /* started flag is false when reconfigure command is sent */
2829 /* drop the buffers queued in L2CAP */
2830 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2831 AVDT_CloseReq(p_scb->avdt_handle);
2832 } else {
2833 /* update the codec info after rcfg cfm */
2834 APPL_TRACE_DEBUG(
2835 "%s: updating from codec %s to codec %s", __func__,
2836 A2DP_CodecName(p_scb->cfg.codec_info),
2837 A2DP_CodecName(p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info));
2838 memcpy(p_scb->cfg.codec_info,
2839 p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info, AVDT_CODEC_SIZE);
2840 /* take the SSM back to OPEN state */
2841 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2842 }
2843 }
2844
2845 /*******************************************************************************
2846 *
2847 * Function bta_av_rcfg_open
2848 *
2849 * Description AVDT is connected. open the stream with the new
2850 * configuration
2851 *
2852 * Returns void
2853 *
2854 ******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2855 void bta_av_rcfg_open(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2856 APPL_TRACE_DEBUG("%s: peer %s handle:%d num_disc_snks:%d", __func__,
2857 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2858 p_scb->num_disc_snks);
2859
2860 if (p_scb->num_disc_snks == 0) {
2861 /* Need to update call-out module so that it will be ready for discover */
2862 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2863
2864 /* send avdtp discover request */
2865 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
2866 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
2867 } else {
2868 APPL_TRACE_DEBUG("%s: calling AVDT_OpenReq()", __func__);
2869 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2870 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2871
2872 /* we may choose to use a different SEP at reconfig.
2873 * adjust the sep_idx now */
2874 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2875
2876 /* open the stream with the new config */
2877 p_scb->sep_info_idx = p_scb->rcfg_idx;
2878 AVDT_OpenReq(p_scb->avdt_handle, p_scb->PeerAddress(), p_scb->hdi,
2879 p_scb->sep_info[p_scb->sep_info_idx].seid, &p_scb->cfg);
2880 }
2881 }
2882
2883 /*******************************************************************************
2884 *
2885 * Function bta_av_security_rej
2886 *
2887 * Description Send an AVDTP security reject.
2888 *
2889 * Returns void
2890 *
2891 ******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2892 void bta_av_security_rej(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2893 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2894 NULL, 0);
2895 }
2896
2897 /*******************************************************************************
2898 *
2899 * Function bta_av_chk_2nd_start
2900 *
2901 * Description check if this is 2nd stream and if it needs to be started.
2902 * This function needs to be kept very similar to
2903 * bta_av_chk_start
2904 *
2905 * Returns void
2906 *
2907 ******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2908 void bta_av_chk_2nd_start(tBTA_AV_SCB* p_scb,
2909 UNUSED_ATTR tBTA_AV_DATA* p_data) {
2910 LOG_INFO(LOG_TAG,
2911 "%s: peer %s channel:%d bta_av_cb.audio_open_cnt:%d role:0x%x "
2912 "features:0x%x",
2913 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->chnl,
2914 bta_av_cb.audio_open_cnt, p_scb->role, bta_av_cb.features);
2915
2916 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2) &&
2917 (((p_scb->role & BTA_AV_ROLE_AD_ACP) == 0) || // Outgoing connection or
2918 (bta_av_cb.features & BTA_AV_FEAT_ACP_START))) { // Auto-starting option
2919 // More than one audio channel is connected.
2920 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) {
2921 // This channel does not need to be reconfigured.
2922 // If there is other channel streaming, start the stream now.
2923 bool new_started = false;
2924 for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
2925 tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i];
2926 if (p_scb == p_scbi) {
2927 continue;
2928 }
2929 if (p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) {
2930 if (!new_started) {
2931 // Start the new stream
2932 new_started = true;
2933 LOG_INFO(LOG_TAG,
2934 "%s: starting new stream for peer %s because peer %s "
2935 "already started",
2936 __func__, p_scb->PeerAddress().ToString().c_str(),
2937 p_scbi->PeerAddress().ToString().c_str());
2938 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2939 }
2940 // May need to update the flush timeout of this already started stream
2941 if (p_scbi->co_started != bta_av_cb.audio_open_cnt) {
2942 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2943 L2CA_SetFlushTimeout(
2944 p_scbi->PeerAddress(),
2945 p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1]);
2946 }
2947 }
2948 }
2949 }
2950 }
2951 }
2952
2953 /*******************************************************************************
2954 *
2955 * Function bta_av_open_rc
2956 *
2957 * Description Send a message to main SM to open RC channel.
2958 *
2959 * Returns void
2960 *
2961 ******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2962 void bta_av_open_rc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2963 APPL_TRACE_DEBUG("%s: use_rc: %d, wait: 0x%x role: 0x%x", __func__,
2964 p_scb->use_rc, p_scb->wait, p_scb->role);
2965 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) &&
2966 (p_scb->q_tag == BTA_AV_Q_TAG_START)) {
2967 /* waiting for role switch for some reason & the timer expires */
2968 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT)) {
2969 APPL_TRACE_ERROR(
2970 "%s: failed to start streaming for role management reasons!!",
2971 __func__);
2972 alarm_cancel(p_scb->avrc_ct_timer);
2973
2974 tBTA_AV_START start;
2975 start.chnl = p_scb->chnl;
2976 start.status = BTA_AV_FAIL_ROLE;
2977 start.initiator = true;
2978 start.hndl = p_scb->hndl;
2979 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2980 bta_av_cb.rs_idx = 0;
2981 tBTA_AV bta_av_data;
2982 bta_av_data.start = start;
2983 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2984 } else {
2985 /* role switch is done. continue to start streaming */
2986 bta_av_cb.rs_idx = 0;
2987 p_data->hdr.offset = BTA_AV_RS_OK;
2988 bta_av_start_ok(p_scb, p_data);
2989 }
2990 return;
2991 }
2992
2993 if (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP)) {
2994 if (bta_av_cb.disc) {
2995 /* AVRC discover db is in use */
2996 if (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) {
2997 /* AVRC channel is not connected. delay a little bit */
2998 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
2999 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
3000 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
3001 } else {
3002 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
3003 }
3004 }
3005 } else {
3006 /* use main SM for AVRC SDP activities */
3007 if (is_new_avrcp_enabled()) {
3008 APPL_TRACE_WARNING("%s: Using the new AVRCP Profile", __func__);
3009 bluetooth::avrcp::AvrcpService::Get()->ConnectDevice(
3010 p_scb->PeerAddress());
3011 } else {
3012 bta_av_rc_disc((uint8_t)(p_scb->hdi + 1));
3013 }
3014 }
3015 } else {
3016 if (BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) {
3017 /* the open API said that this handle does not want a RC connection.
3018 * disconnect it now */
3019 AVRC_Close(p_scb->rc_handle);
3020 }
3021 }
3022 }
3023
3024 /*******************************************************************************
3025 *
3026 * Function bta_av_open_at_inc
3027 *
3028 * Description This function is called if API open is called by application
3029 * while state-machine is at incoming state.
3030 *
3031 * Returns void
3032 *
3033 ******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3034 void bta_av_open_at_inc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3035 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
3036
3037 APPL_TRACE_DEBUG("%s: peer %s coll_mask:0x%x", __func__,
3038 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
3039
3040 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
3041 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
3042
3043 /* API open will be handled at timeout if SNK did not start signalling. */
3044 /* API open will be ignored if SNK starts signalling. */
3045 } else {
3046 /* SNK did not start signalling, API was called N seconds timeout. */
3047 /* We need to switch to INIT state and start opening connection. */
3048 p_scb->coll_mask = 0;
3049 bta_av_set_scb_sst_init(p_scb);
3050
3051 tBTA_AV_API_OPEN* p_buf =
3052 (tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
3053 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
3054 bta_sys_sendmsg(p_buf);
3055 }
3056 }
3057
offload_vendor_callback(tBTM_VSC_CMPL * param)3058 void offload_vendor_callback(tBTM_VSC_CMPL* param) {
3059 tBTA_AV value{0};
3060 uint8_t sub_opcode = 0;
3061 if (param->param_len) {
3062 APPL_TRACE_DEBUG("%s: param_len = %d status = %d", __func__,
3063 param->param_len, param->p_param_buf[0]);
3064 value.status = param->p_param_buf[0];
3065 }
3066 if (value.status == 0) {
3067 sub_opcode = param->p_param_buf[1];
3068 APPL_TRACE_DEBUG("%s: subopcode = %d", __func__, sub_opcode);
3069 switch (sub_opcode) {
3070 case VS_HCI_A2DP_OFFLOAD_STOP:
3071 APPL_TRACE_DEBUG("%s: VS_HCI_STOP_A2DP_MEDIA successful", __func__);
3072 break;
3073 case VS_HCI_A2DP_OFFLOAD_START:
3074 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3075 break;
3076 default:
3077 break;
3078 }
3079 } else {
3080 APPL_TRACE_DEBUG("%s: Offload failed for subopcode= %d", __func__,
3081 sub_opcode);
3082 if (param->opcode != VS_HCI_A2DP_OFFLOAD_STOP)
3083 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3084 }
3085 }
3086
bta_av_vendor_offload_start(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * offload_start)3087 void bta_av_vendor_offload_start(tBTA_AV_SCB* p_scb,
3088 tBT_A2DP_OFFLOAD* offload_start) {
3089 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3090 APPL_TRACE_DEBUG("%s", __func__);
3091
3092 uint8_t* p_param = param;
3093 *p_param++ = VS_HCI_A2DP_OFFLOAD_START;
3094
3095 UINT32_TO_STREAM(p_param, offload_start->codec_type);
3096 UINT16_TO_STREAM(p_param, offload_start->max_latency);
3097 UINT16_TO_STREAM(p_param, offload_start->scms_t_enable);
3098 UINT32_TO_STREAM(p_param, offload_start->sample_rate);
3099 UINT8_TO_STREAM(p_param, offload_start->bits_per_sample);
3100 UINT8_TO_STREAM(p_param, offload_start->ch_mode);
3101 UINT32_TO_STREAM(p_param, offload_start->encoded_audio_bitrate);
3102 UINT16_TO_STREAM(p_param, offload_start->acl_hdl);
3103 UINT16_TO_STREAM(p_param, offload_start->l2c_rcid);
3104 UINT16_TO_STREAM(p_param, offload_start->mtu);
3105 ARRAY_TO_STREAM(p_param, offload_start->codec_info,
3106 (int8_t)sizeof(offload_start->codec_info));
3107 p_scb->offload_started = true;
3108 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP_OPCODE_OCF, p_param - param,
3109 param, offload_vendor_callback);
3110 }
3111
bta_av_vendor_offload_stop()3112 void bta_av_vendor_offload_stop() {
3113 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3114 APPL_TRACE_DEBUG("%s", __func__);
3115 param[0] = VS_HCI_A2DP_OFFLOAD_STOP;
3116 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP_OPCODE_OCF, 1, param,
3117 offload_vendor_callback);
3118 }
3119 /*******************************************************************************
3120 *
3121 * Function bta_av_offload_req
3122 *
3123 * Description This function is called if application requests offload of
3124 * a2dp audio.
3125 *
3126 * Returns void
3127 *
3128 ******************************************************************************/
bta_av_offload_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3129 void bta_av_offload_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3130 tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
3131
3132 tBT_A2DP_OFFLOAD offload_start;
3133 APPL_TRACE_DEBUG("%s: stream %s, audio channels open %d", __func__,
3134 p_scb->started ? "STARTED" : "STOPPED",
3135 bta_av_cb.audio_open_cnt);
3136 /* Check if stream has already been started. */
3137 /* Support offload if only one audio source stream is open. */
3138 if (p_scb->started != true) {
3139 status = BTA_AV_FAIL_STREAM;
3140 } else {
3141 bta_av_offload_codec_builder(p_scb, &offload_start);
3142 bta_av_vendor_offload_start(p_scb, &offload_start);
3143 return;
3144 }
3145 if (status != BTA_AV_SUCCESS) {
3146 tBTA_AV bta_av_data;
3147 bta_av_data.status = status;
3148 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3149 }
3150 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
3151 else if (bta_av_cb.audio_open_cnt == 1 &&
3152 p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
3153 p_scb->chnl == BTA_AV_CHNL_AUDIO) {
3154 bt_vendor_op_a2dp_offload_t a2dp_offload_start;
3155
3156 if (L2CA_GetConnectionConfig(
3157 p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
3158 &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
3159 APPL_TRACE_DEBUG("%s: l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle
3160 0x%02X",
3161 __func__, a2dp_offload_start.acl_data_size,
3162 p_scb->l2c_cid, a2dp_offload_start.remote_cid,
3163 a2dp_offload_start.lm_handle);
3164
3165 a2dp_offload_start.bta_av_handle = p_scb->hndl;
3166 a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
3167 a2dp_offload_start.stream_mtu = p_scb->stream_mtu;
3168 a2dp_offload_start.local_cid = p_scb->l2c_cid;
3169 a2dp_offload_start.is_flushable = true;
3170 a2dp_offload_start.stream_source =
3171 ((uint32_t)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
3172
3173 memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
3174 sizeof(a2dp_offload_start.codec_info));
3175
3176 if (!vendor_get_interface()->send_command(
3177 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
3178 &a2dp_offload_start)) {
3179 status = BTA_AV_SUCCESS;
3180 p_scb->offload_start_pending = true;
3181 }
3182 }
3183 }
3184 */
3185 }
3186
3187 /*******************************************************************************
3188 *
3189 * Function bta_av_offload_rsp
3190 *
3191 * Description This function is called when the vendor lib responds to
3192 * BT_VND_OP_A2DP_OFFLOAD_START.
3193 *
3194 * Returns void
3195 *
3196 ******************************************************************************/
bta_av_offload_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3197 void bta_av_offload_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3198 tBTA_AV_STATUS status = p_data->api_status_rsp.status;
3199
3200 APPL_TRACE_DEBUG("%s: stream %s status %s", __func__,
3201 p_scb->started ? "STARTED" : "STOPPED",
3202 status ? "FAIL" : "SUCCESS");
3203
3204 /* Check if stream has already been started. */
3205 if (status == BTA_AV_SUCCESS && p_scb->started != true) {
3206 status = BTA_AV_FAIL_STREAM;
3207 }
3208
3209 p_scb->offload_start_pending = false;
3210 tBTA_AV bta_av_data;
3211 bta_av_data.status = status;
3212 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3213 }
3214
bta_av_offload_codec_builder(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * p_a2dp_offload)3215 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
3216 tBT_A2DP_OFFLOAD* p_a2dp_offload) {
3217 A2dpCodecConfig* CodecConfig = bta_av_get_a2dp_current_codec();
3218 btav_a2dp_codec_index_t codec_index =
3219 A2DP_SourceCodecIndex(p_scb->cfg.codec_info);
3220 uint32_t codec_type = 0;
3221 uint16_t mtu = p_scb->stream_mtu;
3222 APPL_TRACE_DEBUG("%s:codec_index = %d", __func__, codec_index);
3223 switch (codec_index) {
3224 case BTAV_A2DP_CODEC_INDEX_SOURCE_SBC:
3225 codec_type = BTA_AV_CODEC_TYPE_SBC;
3226 if (A2DP_GetMaxBitpoolSbc(p_scb->cfg.codec_info) <=
3227 BTIF_A2DP_MAX_BITPOOL_MQ) {
3228 APPL_TRACE_WARNING("%s: Restricting streaming MTU size for MQ Bitpool",
3229 __func__);
3230 mtu = MAX_2MBPS_AVDTP_MTU;
3231 }
3232 break;
3233 case BTAV_A2DP_CODEC_INDEX_SOURCE_AAC:
3234 codec_type = BTA_AV_CODEC_TYPE_AAC;
3235 break;
3236 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX:
3237 codec_type = BTA_AV_CODEC_TYPE_APTX;
3238 break;
3239 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX_HD:
3240 codec_type = BTA_AV_CODEC_TYPE_APTXHD;
3241 break;
3242 case BTAV_A2DP_CODEC_INDEX_SOURCE_LDAC:
3243 codec_type = BTA_AV_CODEC_TYPE_LDAC;
3244 break;
3245 default:
3246 APPL_TRACE_ERROR("%s: Unknown Codec type ", __func__);
3247 return;
3248 }
3249 if (mtu > MAX_3MBPS_AVDTP_MTU) mtu = MAX_3MBPS_AVDTP_MTU;
3250 p_a2dp_offload->codec_type = codec_type;
3251 p_a2dp_offload->max_latency = 0;
3252 p_a2dp_offload->mtu = mtu;
3253 p_a2dp_offload->acl_hdl =
3254 BTM_GetHCIConnHandle(p_scb->PeerAddress(), BT_TRANSPORT_BR_EDR);
3255 p_a2dp_offload->scms_t_enable =
3256 p_scb->p_cos->cp_is_active(p_scb->PeerAddress());
3257 APPL_TRACE_DEBUG("%s: scms_t_enable =%d", __func__,
3258 p_a2dp_offload->scms_t_enable);
3259
3260 switch (A2DP_GetTrackSampleRate(p_scb->cfg.codec_info)) {
3261 case 44100:
3262 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_44100;
3263 break;
3264 case 48000:
3265 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_48000;
3266 break;
3267 case 88200:
3268 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_88200;
3269 break;
3270 case 96000:
3271 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_96000;
3272 break;
3273 }
3274 if (L2CA_GetIdentifiers(p_scb->l2c_cid, &p_a2dp_offload->l2c_rcid, NULL) ==
3275 false) {
3276 APPL_TRACE_ERROR("%s: Failed to fetch l2c rcid", __func__);
3277 return;
3278 }
3279 switch (CodecConfig->getAudioBitsPerSample()) {
3280 case 16:
3281 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_16;
3282 break;
3283 case 24:
3284 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_24;
3285 break;
3286 case 32:
3287 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_32;
3288 break;
3289 }
3290 p_a2dp_offload->ch_mode = A2DP_GetTrackChannelCount(p_scb->cfg.codec_info);
3291 p_a2dp_offload->encoded_audio_bitrate = CodecConfig->getTrackBitRate();
3292 if (!CodecConfig->getCodecSpecificConfig(p_a2dp_offload)) {
3293 APPL_TRACE_ERROR("%s: not a valid codec info", __func__);
3294 }
3295 }
3296