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 <base/strings/stringprintf.h>
30 #include <cstdint>
31 #include <cstring>
32 #include <vector>
33
34 #include "bt_target.h" // Must be first to define build configuration
35
36 #include "bta/av/bta_av_int.h"
37 #include "bta/include/bta_ar_api.h"
38 #include "bta/include/bta_av_co.h"
39 #include "btif/avrcp/avrcp_service.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 "device/include/interop.h"
44 #include "main/shim/dumpsys.h"
45 #include "osi/include/log.h"
46 #include "osi/include/osi.h"
47 #include "osi/include/properties.h"
48 #include "stack/include/a2dp_sbc.h"
49 #include "stack/include/acl_api.h"
50 #include "stack/include/btm_api.h"
51 #include "stack/include/btm_client_interface.h"
52 #include "stack/include/l2c_api.h"
53 #include "types/hci_role.h"
54
55 namespace {
56
57 constexpr char kBtmLogTag[] = "A2DP";
58
59 }
60
61 /*****************************************************************************
62 * Constants
63 ****************************************************************************/
64
65 /* the delay time in milliseconds to start service discovery on AVRCP */
66 #ifndef BTA_AV_RC_DISC_TIME_VAL
67 #define BTA_AV_RC_DISC_TIME_VAL 3500
68 #endif
69
70 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed
71 * to be sent */
72 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
73 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
74 #endif
75
76 /* number to retry on reconfigure failure - some headsets requirs this number to
77 * be more than 1 */
78 #ifndef BTA_AV_RECONFIG_RETRY
79 #define BTA_AV_RECONFIG_RETRY 6
80 #endif
81
82 /* ACL quota we are letting FW use for A2DP Offload Tx. */
83 #define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA 4
84
85 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
86 tBT_A2DP_OFFLOAD* p_a2dp_offload);
87
88 /* state machine states */
89 enum {
90 BTA_AV_INIT_SST,
91 BTA_AV_INCOMING_SST,
92 BTA_AV_OPENING_SST,
93 BTA_AV_OPEN_SST,
94 BTA_AV_RCFG_SST,
95 BTA_AV_CLOSING_SST
96 };
97
98 /* the call out functions for audio stream */
99 const tBTA_AV_CO_FUNCTS bta_av_a2dp_cos = {bta_av_co_audio_init,
100 bta_av_co_audio_disc_res,
101 bta_av_co_audio_getconfig,
102 bta_av_co_audio_setconfig,
103 bta_av_co_audio_open,
104 bta_av_co_audio_close,
105 bta_av_co_audio_start,
106 bta_av_co_audio_stop,
107 bta_av_co_audio_source_data_path,
108 bta_av_co_audio_delay,
109 bta_av_co_audio_update_mtu,
110 bta_av_co_get_scmst_info};
111
112 /* these tables translate AVDT events to SSM events */
113 static const uint16_t bta_av_stream_evt_ok[] = {
114 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
115 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
116 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
117 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
118 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
119 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
120 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
121 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
122 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
123 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
124 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
125 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
126 0, /* AVDT_RECONFIG_IND_EVT */
127 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
128 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
129 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
130 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
131 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
132 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
133 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
134 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
135 BTA_AV_AVDT_DELAY_RPT_CFM_EVT, /* AVDT_DELAY_REPORT_CFM_EVT */
136 };
137
138 static const uint16_t bta_av_stream_evt_fail[] = {
139 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
140 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
141 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
142 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
143 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
144 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
145 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
146 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
147 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
148 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
149 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
150 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
151 0, /* AVDT_RECONFIG_IND_EVT */
152 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
153 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
154 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
155 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
156 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
157 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
158 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
159 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
160 BTA_AV_AVDT_DELAY_RPT_CFM_EVT, /* AVDT_DELAY_REPORT_CFM_EVT */
161 };
162
163 /***********************************************
164 *
165 * Function bta_get_scb_handle
166 *
167 * Description gives the registered AVDT handle.by checking with sep_type.
168 *
169 *
170 * Returns void
171 **********************************************/
bta_av_get_scb_handle(tBTA_AV_SCB * p_scb,uint8_t local_sep)172 static uint8_t bta_av_get_scb_handle(tBTA_AV_SCB* p_scb, uint8_t local_sep) {
173 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
174 if ((p_scb->seps[i].tsep == local_sep) &&
175 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
176 p_scb->cfg.codec_info)) {
177 return (p_scb->seps[i].av_handle);
178 }
179 }
180 APPL_TRACE_DEBUG("%s: local sep_type %d not found", __func__, local_sep)
181 return 0; /* return invalid handle */
182 }
183
184 /***********************************************
185 *
186 * Function bta_av_get_scb_sep_type
187 *
188 * Description gives the sep type by cross-checking with AVDT handle
189 *
190 *
191 * Returns void
192 **********************************************/
bta_av_get_scb_sep_type(tBTA_AV_SCB * p_scb,uint8_t tavdt_handle)193 static uint8_t bta_av_get_scb_sep_type(tBTA_AV_SCB* p_scb,
194 uint8_t tavdt_handle) {
195 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
196 if (p_scb->seps[i].av_handle == tavdt_handle) return (p_scb->seps[i].tsep);
197 }
198 APPL_TRACE_DEBUG("%s: avdt_handle %d not found", __func__, tavdt_handle)
199 return AVDT_TSEP_INVALID;
200 }
201
202 /*******************************************************************************
203 *
204 * Function bta_av_save_addr
205 *
206 * Description copy the bd_addr and maybe reset the supported flags
207 *
208 *
209 * Returns void
210 *
211 ******************************************************************************/
bta_av_save_addr(tBTA_AV_SCB * p_scb,const RawAddress & bd_addr)212 static void bta_av_save_addr(tBTA_AV_SCB* p_scb, const RawAddress& bd_addr) {
213 APPL_TRACE_DEBUG("%s: peer=%s recfg_sup:%d, suspend_sup:%d", __func__,
214 bd_addr.ToString().c_str(), p_scb->recfg_sup,
215 p_scb->suspend_sup);
216 if (p_scb->PeerAddress() != bd_addr) {
217 LOG_INFO("%s: reset flags old_addr=%s new_addr=%s", __func__,
218 p_scb->PeerAddress().ToString().c_str(),
219 bd_addr.ToString().c_str());
220 /* a new addr, reset the supported flags */
221 p_scb->recfg_sup = true;
222 p_scb->suspend_sup = true;
223 }
224
225 /* do this copy anyway, just in case the first addr matches
226 * the control block one by accident */
227 p_scb->OnConnected(bd_addr);
228 }
229
230 /*******************************************************************************
231 *
232 * Function notify_start_failed
233 *
234 * Description notify up-layer AV start failed
235 *
236 *
237 * Returns void
238 *
239 ******************************************************************************/
notify_start_failed(tBTA_AV_SCB * p_scb)240 static void notify_start_failed(tBTA_AV_SCB* p_scb) {
241 LOG_ERROR("%s: peer %s role:0x%x bta_channel:%d bta_handle:0x%x", __func__,
242 p_scb->PeerAddress().ToString().c_str(), p_scb->role, p_scb->chnl,
243 p_scb->hndl);
244 tBTA_AV_START start;
245 /* if start failed, clear role */
246 p_scb->role &= ~BTA_AV_ROLE_START_INT;
247 start.chnl = p_scb->chnl;
248 start.status = BTA_AV_FAIL;
249 start.initiator = true;
250 start.hndl = p_scb->hndl;
251
252 tBTA_AV bta_av_data;
253 bta_av_data.start = start;
254 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
255 }
256
257 /*******************************************************************************
258 *
259 * Function bta_av_st_rc_timer
260 *
261 * Description start the AVRC timer if no RC connection & CT is supported &
262 * RC is used or
263 * as ACP (we do not really know if we want AVRC)
264 *
265 * Returns void
266 *
267 ******************************************************************************/
bta_av_st_rc_timer(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)268 void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
269 APPL_TRACE_DEBUG("%s: rc_handle:%d, use_rc: %d", __func__, p_scb->rc_handle,
270 p_scb->use_rc);
271 /* for outgoing RC connection as INT/CT */
272 if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
273 /* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
274 (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP))) {
275 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
276 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
277 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
278 } else {
279 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
280 }
281 }
282 }
283
284 /*******************************************************************************
285 *
286 * Function bta_av_next_getcap
287 *
288 * Description The function gets the capabilities of the next available
289 * stream found in the discovery results.
290 *
291 * Returns true if we sent request to AVDT, false otherwise.
292 *
293 ******************************************************************************/
bta_av_next_getcap(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)294 static bool bta_av_next_getcap(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
295 int i;
296 bool sent_cmd = false;
297 uint16_t uuid_int = p_scb->uuid_int;
298 uint8_t sep_requested = 0;
299
300 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
301 sep_requested = AVDT_TSEP_SNK;
302 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
303 sep_requested = AVDT_TSEP_SRC;
304
305 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) {
306 /* steam not in use, is a sink, and is the right media type (audio/video) */
307 if ((!p_scb->sep_info[i].in_use) &&
308 (p_scb->sep_info[i].tsep == sep_requested) &&
309 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
310 p_scb->sep_info_idx = i;
311
312 /* we got a stream; get its capabilities */
313 bool get_all_cap = (p_scb->AvdtpVersion() >= AVDT_VERSION_1_3) &&
314 (A2DP_GetAvdtpVersion() >= AVDT_VERSION_1_3);
315 AVDT_GetCapReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info[i].seid,
316 &p_scb->peer_cap, &bta_av_proc_stream_evt, get_all_cap);
317 sent_cmd = true;
318 break;
319 }
320 }
321
322 /* if no streams available then stream open fails */
323 if (!sent_cmd) {
324 APPL_TRACE_ERROR("%s: BTA_AV_STR_GETCAP_FAIL_EVT: peer_addr=%s", __func__,
325 p_scb->PeerAddress().ToString().c_str());
326 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
327 }
328
329 return sent_cmd;
330 }
331
332 /*******************************************************************************
333 *
334 * Function bta_av_proc_stream_evt
335 *
336 * Description Utility function to compose stream events.
337 *
338 * Returns void
339 *
340 ******************************************************************************/
bta_av_proc_stream_evt(uint8_t handle,const RawAddress & bd_addr,uint8_t event,tAVDT_CTRL * p_data,uint8_t scb_index)341 void bta_av_proc_stream_evt(uint8_t handle, const RawAddress& bd_addr,
342 uint8_t event, tAVDT_CTRL* p_data,
343 uint8_t scb_index) {
344 CHECK_LT(scb_index, BTA_AV_NUM_STRS);
345 tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[scb_index];
346 uint16_t sec_len = 0;
347
348 APPL_TRACE_EVENT(
349 "%s: peer_address: %s avdt_handle: %d event=0x%x scb_index=%d p_scb=%p",
350 __func__, bd_addr.ToString().c_str(), handle, event, scb_index, p_scb);
351
352 if (p_data) {
353 if (event == AVDT_SECURITY_IND_EVT) {
354 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN)
355 ? p_data->security_ind.len
356 : BTA_AV_SECURITY_MAX_LEN;
357 } else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) {
358 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN)
359 ? p_data->security_cfm.len
360 : BTA_AV_SECURITY_MAX_LEN;
361 }
362 }
363
364 if (p_scb) {
365 tBTA_AV_STR_MSG* p_msg =
366 (tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
367
368 /* copy event data, bd addr, and handle to event message buffer */
369 p_msg->hdr.offset = 0;
370
371 p_msg->bd_addr = bd_addr;
372 p_msg->scb_index = scb_index;
373 APPL_TRACE_EVENT("%s: stream event bd_addr: %s scb_index: %u", __func__,
374 p_msg->bd_addr.ToString().c_str(), scb_index);
375
376 if (p_data != NULL) {
377 memcpy(&p_msg->msg, p_data, sizeof(tAVDT_CTRL));
378 /* copy config params to event message buffer */
379 switch (event) {
380 case AVDT_CONFIG_IND_EVT:
381 p_msg->cfg = *p_data->config_ind.p_cfg;
382 break;
383
384 case AVDT_SECURITY_IND_EVT:
385 p_msg->msg.security_ind.p_data = (uint8_t*)(p_msg + 1);
386 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data,
387 sec_len);
388 break;
389
390 case AVDT_SECURITY_CFM_EVT:
391 p_msg->msg.security_cfm.p_data = (uint8_t*)(p_msg + 1);
392 if (p_data->hdr.err_code == 0) {
393 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data,
394 sec_len);
395 }
396 break;
397
398 case AVDT_SUSPEND_IND_EVT:
399 p_msg->msg.hdr.err_code = 0;
400 break;
401
402 case AVDT_CONNECT_IND_EVT:
403 p_scb->recfg_sup = true;
404 p_scb->suspend_sup = true;
405 break;
406
407 default:
408 break;
409 }
410 } else {
411 p_msg->msg.hdr.err_code = 0;
412 }
413
414 /* look up application event */
415 if ((p_data == NULL) || (p_data->hdr.err_code == 0)) {
416 p_msg->hdr.event = bta_av_stream_evt_ok[event];
417 } else {
418 p_msg->hdr.event = bta_av_stream_evt_fail[event];
419 }
420
421 p_msg->initiator = false;
422 if (event == AVDT_SUSPEND_CFM_EVT) p_msg->initiator = true;
423
424 APPL_TRACE_VERBOSE("%s: bta_handle:0x%x avdt_handle:%d", __func__,
425 p_scb->hndl, handle);
426 p_msg->hdr.layer_specific = p_scb->hndl;
427 p_msg->handle = handle;
428 p_msg->avdt_event = event;
429 bta_sys_sendmsg(p_msg);
430 }
431
432 if (p_data) {
433 bta_av_conn_cback(handle, bd_addr, event, p_data, scb_index);
434 } else {
435 APPL_TRACE_ERROR("%s: p_data is null", __func__);
436 }
437 }
438
439 /*******************************************************************************
440 *
441 * Function bta_av_sink_data_cback
442 *
443 * Description This is the AVDTP callback function for sink stream events.
444 *
445 * Returns void
446 *
447 ******************************************************************************/
bta_av_sink_data_cback(uint8_t handle,BT_HDR * p_pkt,uint32_t time_stamp,uint8_t m_pt)448 void bta_av_sink_data_cback(uint8_t handle, BT_HDR* p_pkt, uint32_t time_stamp,
449 uint8_t m_pt) {
450 int index = 0;
451 tBTA_AV_SCB* p_scb;
452 APPL_TRACE_DEBUG(
453 "%s: avdt_handle: %d pkt_len=0x%x offset = 0x%x "
454 "number of frames 0x%x sequence number 0x%x",
455 __func__, handle, p_pkt->len, p_pkt->offset,
456 *((uint8_t*)(p_pkt + 1) + p_pkt->offset), p_pkt->layer_specific);
457 /* Get SCB and correct sep type */
458 for (index = 0; index < BTA_AV_NUM_STRS; index++) {
459 p_scb = bta_av_cb.p_scb[index];
460 if ((p_scb->avdt_handle == handle) &&
461 (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)) {
462 break;
463 }
464 }
465 if (index == BTA_AV_NUM_STRS) {
466 /* cannot find correct handler */
467 osi_free(p_pkt);
468 return;
469 }
470 p_pkt->event = BTA_AV_SINK_MEDIA_DATA_EVT;
471 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
472 p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
473 /* Free the buffer: a copy of the packet has been delivered */
474 osi_free(p_pkt);
475 }
476
477 /*******************************************************************************
478 *
479 * Function bta_av_a2dp_sdp_cback
480 *
481 * Description A2DP service discovery callback.
482 *
483 * Returns void
484 *
485 ******************************************************************************/
bta_av_a2dp_sdp_cback(bool found,tA2DP_Service * p_service,const RawAddress & peer_address)486 static void bta_av_a2dp_sdp_cback(bool found, tA2DP_Service* p_service,
487 const RawAddress& peer_address) {
488 APPL_TRACE_DEBUG("%s: peer %s : found=%s", __func__,
489 peer_address.ToString().c_str(), (found) ? "true" : "false");
490
491 tBTA_AV_SCB* p_scb = NULL;
492 if (peer_address != RawAddress::kEmpty) {
493 p_scb = bta_av_addr_to_scb(peer_address);
494 }
495 if (p_scb == NULL) {
496 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
497 }
498 if (p_scb == NULL) {
499 APPL_TRACE_ERROR("%s: no scb found for SDP handle(0x%x)", __func__,
500 bta_av_cb.handle);
501 return;
502 }
503 if (bta_av_cb.handle != p_scb->hndl) {
504 APPL_TRACE_WARNING("%s: SDP bta_handle expected=0x%x processing=0x%x",
505 __func__, bta_av_cb.handle, p_scb->hndl);
506 }
507
508 if (!found) {
509 APPL_TRACE_ERROR("%s: peer %s A2DP service discovery failed", __func__,
510 p_scb->PeerAddress().ToString().c_str());
511 }
512 APPL_TRACE_DEBUG("%s: peer %s found=%s", __func__,
513 p_scb->PeerAddress().ToString().c_str(),
514 (found) ? "true" : "false");
515
516 tBTA_AV_SDP_RES* p_msg =
517 (tBTA_AV_SDP_RES*)osi_malloc(sizeof(tBTA_AV_SDP_RES));
518 if (found) {
519 p_msg->hdr.event = BTA_AV_SDP_DISC_OK_EVT;
520 } else {
521 p_msg->hdr.event = BTA_AV_SDP_DISC_FAIL_EVT;
522 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
523 p_scb->PeerAddress().ToString().c_str());
524 }
525 if (found && (p_service != NULL)) {
526 p_scb->SetAvdtpVersion(p_service->avdt_version);
527 if (p_service->avdt_version != 0) {
528 if (btif_config_set_bin(p_scb->PeerAddress().ToString(),
529 AVDTP_VERSION_CONFIG_KEY,
530 (const uint8_t*)&p_service->avdt_version,
531 sizeof(p_service->avdt_version))) {
532 btif_config_save();
533 } else {
534 APPL_TRACE_WARNING("%s: Failed to store peer AVDTP version for %s",
535 __func__, p_scb->PeerAddress().ToString().c_str());
536 }
537 }
538 } else {
539 p_scb->SetAvdtpVersion(0);
540 }
541 p_msg->hdr.layer_specific = p_scb->hndl;
542
543 bta_sys_sendmsg(p_msg);
544 }
545
546 /*******************************************************************************
547 *
548 * Function bta_av_adjust_seps_idx
549 *
550 * Description adjust the sep_idx
551 *
552 * Returns
553 *
554 ******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb,uint8_t avdt_handle)555 static void bta_av_adjust_seps_idx(tBTA_AV_SCB* p_scb, uint8_t avdt_handle) {
556 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
557 A2DP_CodecName(p_scb->cfg.codec_info));
558 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
559 APPL_TRACE_DEBUG("%s: avdt_handle: %d codec: %s", __func__,
560 p_scb->seps[i].av_handle,
561 A2DP_CodecName(p_scb->seps[i].codec_info));
562 if (p_scb->seps[i].av_handle && (p_scb->seps[i].av_handle == avdt_handle) &&
563 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
564 p_scb->cfg.codec_info)) {
565 p_scb->sep_idx = i;
566 p_scb->avdt_handle = p_scb->seps[i].av_handle;
567 break;
568 }
569 }
570 }
571
572 /*******************************************************************************
573 *
574 * Function bta_av_switch_role
575 *
576 * Description Switch role was not started and a timer was started.
577 * another attempt to switch role now - still opening.
578 *
579 * Returns void
580 *
581 ******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)582 void bta_av_switch_role(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
583 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
584 tBTA_AV_API_OPEN* p_buf = &p_scb->q_info.open;
585
586 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x", __func__,
587 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
588 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
589 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
590
591 /* clear the masks set when the timer is started */
592 p_scb->wait &=
593 ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START);
594
595 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
596 if (bta_av_switch_if_needed(p_scb) ||
597 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
598 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
599 } else {
600 /* this should not happen in theory. Just in case...
601 * continue to do_disc_a2dp */
602 switch_res = BTA_AV_RS_DONE;
603 }
604 } else {
605 /* report failure on OPEN */
606 APPL_TRACE_ERROR("%s: peer %s role switch failed (wait=0x%x)", __func__,
607 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
608 switch_res = BTA_AV_RS_FAIL;
609 }
610
611 if (switch_res != BTA_AV_RS_NONE) {
612 if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) {
613 bta_av_cb.rs_idx = 0;
614 }
615 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
616 p_scb->q_tag = 0;
617 p_buf->switch_res = switch_res;
618 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)p_buf);
619 }
620 }
621
622 /*******************************************************************************
623 *
624 * Function bta_av_role_res
625 *
626 * Description Handle the role changed event
627 *
628 *
629 * Returns void
630 *
631 ******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)632 void bta_av_role_res(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
633 bool initiator = false;
634
635 APPL_TRACE_DEBUG("%s: peer %s q_tag:%d, wait:0x%x, role:0x%x", __func__,
636 p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
637 p_scb->wait, p_scb->role);
638 if (p_scb->role & BTA_AV_ROLE_START_INT) initiator = true;
639
640 if (p_scb->q_tag == BTA_AV_Q_TAG_START) {
641 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) {
642 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
643 if (p_data->role_res.hci_status != HCI_SUCCESS) {
644 p_scb->role &= ~BTA_AV_ROLE_START_INT;
645 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
646 /* start failed because of role switch. */
647 tBTA_AV_START start;
648 start.chnl = p_scb->chnl;
649 start.status = BTA_AV_FAIL_ROLE;
650 start.hndl = p_scb->hndl;
651 start.initiator = initiator;
652 tBTA_AV bta_av_data;
653 bta_av_data.start = start;
654 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
655 } else {
656 bta_av_start_ok(p_scb, p_data);
657 }
658 } else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
659 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
660 } else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
661 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) {
662 p_scb->role &= ~BTA_AV_ROLE_START_INT;
663 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
664
665 if (p_data->role_res.hci_status != HCI_SUCCESS) {
666 /* Open failed because of role switch. */
667 tBTA_AV_OPEN av_open;
668 av_open.bd_addr = p_scb->PeerAddress();
669 av_open.chnl = p_scb->chnl;
670 av_open.hndl = p_scb->hndl;
671 av_open.status = BTA_AV_FAIL_ROLE;
672 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
673 av_open.sep = AVDT_TSEP_SNK;
674 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
675 av_open.sep = AVDT_TSEP_SRC;
676 }
677 tBTA_AV bta_av_data;
678 bta_av_data.open = av_open;
679 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
680 } else {
681 /* Continue av open process */
682 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
683 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open));
684 }
685 } else {
686 APPL_TRACE_WARNING(
687 "%s: peer %s unexpected role switch event: q_tag = %d wait = 0x%x",
688 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
689 p_scb->wait);
690 }
691 }
692
693 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x, role:0x%x", __func__,
694 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
695 p_scb->role);
696 }
697
698 /*******************************************************************************
699 *
700 * Function bta_av_delay_co
701 *
702 * Description Call the delay call-out function to report the delay report
703 * from SNK
704 *
705 * Returns void
706 *
707 ******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)708 void bta_av_delay_co(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
709 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x delay:%d", __func__,
710 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
711 p_data->str_msg.msg.delay_rpt_cmd.delay);
712 p_scb->p_cos->delay(p_scb->hndl, p_scb->PeerAddress(),
713 p_data->str_msg.msg.delay_rpt_cmd.delay);
714 }
715
716 /*******************************************************************************
717 *
718 * Function bta_av_do_disc_a2dp
719 *
720 * Description Do service discovery for A2DP.
721 *
722 * Returns void
723 *
724 ******************************************************************************/
bta_av_do_disc_a2dp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)725 void bta_av_do_disc_a2dp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
726 bool ok_continue = false;
727 tA2DP_SDP_DB_PARAMS db_params;
728 uint16_t attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
729 ATTR_ID_PROTOCOL_DESC_LIST,
730 ATTR_ID_BT_PROFILE_DESC_LIST};
731 uint16_t sdp_uuid = 0; /* UUID for which SDP has to be done */
732
733 APPL_TRACE_DEBUG("%s: peer_addr: %s use_rc: %d switch_res:%d, oc:%d",
734 __func__, p_data->api_open.bd_addr.ToString().c_str(),
735 p_data->api_open.use_rc, p_data->api_open.switch_res,
736 bta_av_cb.audio_open_cnt);
737
738 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
739
740 switch (p_data->api_open.switch_res) {
741 case BTA_AV_RS_NONE:
742 if (bta_av_switch_if_needed(p_scb) ||
743 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
744 /* waiting for role switch result. save the api to control block */
745 memcpy(&p_scb->q_info.open, &p_data->api_open,
746 sizeof(tBTA_AV_API_OPEN));
747 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
748 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
749 } else {
750 ok_continue = true;
751 }
752 break;
753
754 case BTA_AV_RS_FAIL:
755 /* report a new failure event */
756 p_scb->open_status = BTA_AV_FAIL_ROLE;
757 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
758 p_scb->PeerAddress().ToString().c_str());
759 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
760 break;
761
762 case BTA_AV_RS_OK:
763 p_data = (tBTA_AV_DATA*)&p_scb->q_info.open;
764 /* continue to open if link role is ok */
765 if (bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
766 ok_continue = true;
767 } else {
768 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
769 }
770 break;
771
772 case BTA_AV_RS_DONE:
773 ok_continue = true;
774 break;
775 }
776
777 APPL_TRACE_DEBUG("%s: ok_continue: %d wait:0x%x, q_tag: %d", __func__,
778 ok_continue, p_scb->wait, p_scb->q_tag);
779 if (!ok_continue) return;
780
781 /* clear the role switch bits */
782 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
783
784 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) {
785 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
786 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
787 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
788 }
789
790 /* store peer addr other parameters */
791 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
792 p_scb->use_rc = p_data->api_open.use_rc;
793
794 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
795
796 /* set up parameters */
797 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
798 db_params.num_attr = 3;
799 db_params.p_attrs = attr_list;
800 p_scb->uuid_int = p_data->api_open.uuid;
801 p_scb->sdp_discovery_started = true;
802 if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
803 sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
804 else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
805 sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
806
807 APPL_TRACE_DEBUG(
808 "%s: Initiate SDP discovery for peer %s : uuid_int=0x%x "
809 "sdp_uuid=0x%x",
810 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
811 sdp_uuid);
812 tA2DP_STATUS find_service_status = A2DP_FindService(
813 sdp_uuid, p_scb->PeerAddress(), &db_params, bta_av_a2dp_sdp_cback);
814 if (find_service_status != A2DP_SUCCESS) {
815 APPL_TRACE_ERROR(
816 "%s: A2DP_FindService() failed for peer %s uuid_int=0x%x "
817 "sdp_uuid=0x%x : status=%d",
818 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
819 sdp_uuid, find_service_status);
820 bta_av_a2dp_sdp_cback(false, nullptr, p_scb->PeerAddress());
821 } else {
822 /* only one A2DP find service is active at a time */
823 bta_av_cb.handle = p_scb->hndl;
824 }
825 }
826
827 /*******************************************************************************
828 *
829 * Function bta_av_cleanup
830 *
831 * Description cleanup AV stream control block.
832 *
833 * Returns void
834 *
835 ******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)836 void bta_av_cleanup(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
837 tBTA_AV_CONN_CHG msg;
838 uint8_t role = BTA_AV_ROLE_AD_INT;
839
840 LOG_INFO("%s peer %s", __func__, p_scb->PeerAddress().ToString().c_str());
841
842 /* free any buffers */
843 p_scb->sdp_discovery_started = false;
844 p_scb->SetAvdtpVersion(0);
845
846 /* initialize some control block variables */
847 p_scb->open_status = BTA_AV_SUCCESS;
848
849 /* if de-registering shut everything down */
850 msg.hdr.layer_specific = p_scb->hndl;
851 p_scb->started = false;
852 p_scb->offload_started = false;
853 p_scb->use_rtp_header_marker_bit = false;
854 p_scb->cong = false;
855 p_scb->role = role;
856 p_scb->cur_psc_mask = 0;
857 p_scb->wait = 0;
858 p_scb->num_disc_snks = 0;
859 p_scb->coll_mask = 0;
860 alarm_cancel(p_scb->avrc_ct_timer);
861 alarm_cancel(p_scb->link_signalling_timer);
862 alarm_cancel(p_scb->accept_signalling_timer);
863
864 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
865 vendor_get_interface()->send_command(
866 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
867 if (p_scb->offload_start_pending) {
868 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
869 tBTA_AV bta_av_data;
870 bta_av_data.status = status;
871 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
872 }
873 */
874
875 p_scb->offload_start_pending = false;
876
877 if (p_scb->deregistering) {
878 /* remove stream */
879 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
880 if (p_scb->seps[i].av_handle) AVDT_RemoveStream(p_scb->seps[i].av_handle);
881 p_scb->seps[i].av_handle = 0;
882 }
883
884 bta_av_dereg_comp((tBTA_AV_DATA*)&msg);
885 } else {
886 /* report stream closed to main SM */
887 msg.is_up = false;
888 msg.peer_addr = p_scb->PeerAddress();
889 bta_av_conn_chg((tBTA_AV_DATA*)&msg);
890 }
891 }
892
893 /*******************************************************************************
894 *
895 * Function bta_av_free_sdb
896 *
897 * Description Free service discovery db buffer.
898 *
899 * Returns void
900 *
901 ******************************************************************************/
bta_av_free_sdb(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)902 void bta_av_free_sdb(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
903 p_scb->sdp_discovery_started = false;
904 }
905
906 /*******************************************************************************
907 *
908 * Function bta_av_config_ind
909 *
910 * Description Handle a stream configuration indication from the peer.
911 *
912 * Returns void
913 *
914 ******************************************************************************/
bta_av_config_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)915 void bta_av_config_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
916 tBTA_AV_CI_SETCONFIG setconfig{};
917 tAVDT_SEP_INFO* p_info;
918 const AvdtpSepConfig* p_evt_cfg = &p_data->str_msg.cfg;
919 uint8_t psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
920 uint8_t
921 local_sep; /* sep type of local handle on which connection was received */
922 tBTA_AV_STR_MSG* p_msg = (tBTA_AV_STR_MSG*)p_data;
923
924 local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
925 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
926
927 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x local_sep:%d", __func__,
928 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
929 local_sep);
930 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
931 A2DP_CodecInfoString(p_evt_cfg->codec_info).c_str());
932
933 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
934 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
935
936 /* Clear collision mask */
937 p_scb->coll_mask = 0;
938 alarm_cancel(p_scb->accept_signalling_timer);
939
940 /* if no codec parameters in configuration, fail */
941 if ((p_evt_cfg->num_codec == 0) ||
942 /* or the peer requests for a service we do not support */
943 ((psc_mask != p_scb->cfg.psc_mask) &&
944 (psc_mask != (p_scb->cfg.psc_mask & ~AVDT_PSC_DELAY_RPT)))) {
945 setconfig.hndl = p_scb->hndl; /* we may not need this */
946 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
947 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT,
948 (tBTA_AV_DATA*)&setconfig);
949 } else {
950 p_info = &p_scb->sep_info[0];
951 p_info->in_use = 0;
952 p_info->media_type = p_scb->media_type;
953 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
954
955 /* Sep type of Peer will be oppsite role to our local sep */
956 if (local_sep == AVDT_TSEP_SRC)
957 p_info->tsep = AVDT_TSEP_SNK;
958 else if (local_sep == AVDT_TSEP_SNK)
959 p_info->tsep = AVDT_TSEP_SRC;
960
961 p_scb->role |= BTA_AV_ROLE_AD_ACP;
962 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
963 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
964 p_scb->use_rc = true;
965 else
966 p_scb->use_rc = false;
967
968 p_scb->num_seps = 1;
969 p_scb->sep_info_idx = 0;
970 APPL_TRACE_DEBUG("%s: SEID: %d use_rc: %d cur_psc_mask:0x%x", __func__,
971 p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
972 /* in case of A2DP SINK this is the first time peer data is being sent to
973 * co functions */
974 if (local_sep == AVDT_TSEP_SNK) {
975 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
976 p_evt_cfg->codec_info, p_info->seid,
977 p_evt_cfg->num_protect, p_evt_cfg->protect_info,
978 AVDT_TSEP_SNK, p_msg->handle);
979 } else {
980 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
981 p_evt_cfg->codec_info, p_info->seid,
982 p_evt_cfg->num_protect, p_evt_cfg->protect_info,
983 AVDT_TSEP_SRC, p_msg->handle);
984 }
985 }
986 }
987
988 /*******************************************************************************
989 *
990 * Function bta_av_disconnect_req
991 *
992 * Description Disconnect AVDTP connection.
993 *
994 * Returns void
995 *
996 ******************************************************************************/
bta_av_disconnect_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)997 void bta_av_disconnect_req(tBTA_AV_SCB* p_scb,
998 UNUSED_ATTR tBTA_AV_DATA* p_data) {
999 tBTA_AV_RCB* p_rcb;
1000
1001 APPL_TRACE_API("%s: conn_lcb: 0x%x peer_addr: %s", __func__,
1002 bta_av_cb.conn_lcb, p_scb->PeerAddress().ToString().c_str());
1003
1004 alarm_cancel(p_scb->link_signalling_timer);
1005 alarm_cancel(p_scb->accept_signalling_timer);
1006 alarm_cancel(p_scb->avrc_ct_timer);
1007
1008 // conn_lcb is the index bitmask of all used LCBs, and since LCB and SCB use
1009 // the same index, it should be safe to use SCB index here.
1010 if ((bta_av_cb.conn_lcb & (1 << p_scb->hdi)) != 0) {
1011 p_rcb = bta_av_get_rcb_by_shdl((uint8_t)(p_scb->hdi + 1));
1012 if (p_rcb) bta_av_del_rc(p_rcb);
1013 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
1014 } else {
1015 APPL_TRACE_WARNING("%s: conn_lcb=0x%x bta_handle=0x%x (hdi=%u) no link",
1016 __func__, bta_av_cb.conn_lcb, p_scb->hndl, p_scb->hdi);
1017 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1018 }
1019 }
1020
1021 /*******************************************************************************
1022 *
1023 * Function bta_av_security_req
1024 *
1025 * Description Send an AVDTP security request.
1026 *
1027 * Returns void
1028 *
1029 ******************************************************************************/
bta_av_security_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1030 void bta_av_security_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1031 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1032 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1033 p_data->api_protect_req.len);
1034 }
1035 }
1036
1037 /*******************************************************************************
1038 *
1039 * Function bta_av_security_rsp
1040 *
1041 * Description Send an AVDTP security response.
1042 *
1043 * Returns void
1044 *
1045 ******************************************************************************/
bta_av_security_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1046 void bta_av_security_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1047 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1048 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label,
1049 p_data->api_protect_rsp.error_code,
1050 p_data->api_protect_rsp.p_data,
1051 p_data->api_protect_rsp.len);
1052 } else {
1053 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
1054 0);
1055 }
1056 }
1057
1058 /*******************************************************************************
1059 *
1060 * Function bta_av_setconfig_rsp
1061 *
1062 * Description setconfig is OK
1063 *
1064 * Returns void
1065 *
1066 ******************************************************************************/
bta_av_setconfig_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1067 void bta_av_setconfig_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1068 uint8_t num = p_data->ci_setconfig.num_seid + 1;
1069 uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
1070 uint8_t* p_seid = p_data->ci_setconfig.p_seid;
1071 int i;
1072 uint8_t local_sep;
1073
1074 /* we like this codec_type. find the sep_idx */
1075 local_sep = bta_av_get_scb_sep_type(p_scb, avdt_handle);
1076 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1077 LOG_INFO(
1078 "%s: peer %s bta_handle=0x%x avdt_handle=%d sep_idx=%d cur_psc_mask:0x%x",
1079 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1080 p_scb->avdt_handle, p_scb->sep_idx, p_scb->cur_psc_mask);
1081
1082 if ((AVDT_TSEP_SNK == local_sep) &&
1083 (p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
1084 (p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
1085 tBTA_AV_MEDIA av_sink_codec_info;
1086 av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
1087 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1088 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
1089 p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
1090 }
1091
1092 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label,
1093 p_data->ci_setconfig.err_code, p_data->ci_setconfig.category);
1094
1095 alarm_cancel(p_scb->link_signalling_timer);
1096
1097 if (p_data->ci_setconfig.err_code == AVDT_SUCCESS) {
1098 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1099 if (p_data->ci_setconfig.recfg_needed)
1100 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1101 APPL_TRACE_DEBUG("%s: recfg_needed:%d role:0x%x num:%d", __func__,
1102 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1103 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1104 * getcap on these SEID */
1105 p_scb->num_seps = num;
1106
1107 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1108 p_scb->SetAvdtpVersion(AVDT_VERSION_1_3);
1109
1110 if (A2DP_GetCodecType(p_scb->cfg.codec_info) == A2DP_MEDIA_CT_SBC ||
1111 num > 1) {
1112 /* if SBC is used by the SNK as INT, discover req is not sent in
1113 * bta_av_config_ind.
1114 * call disc_res now */
1115 /* this is called in A2DP SRC path only, In case of SINK we don't need it
1116 */
1117 if (local_sep == AVDT_TSEP_SRC)
1118 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), num, num, 0,
1119 UUID_SERVCLASS_AUDIO_SOURCE);
1120 } else {
1121 /* we do not know the peer device and it is using non-SBC codec
1122 * we need to know all the SEPs on SNK */
1123 if (p_scb->uuid_int == 0) p_scb->uuid_int = p_scb->open_api.uuid;
1124 bta_av_discover_req(p_scb, NULL);
1125 return;
1126 }
1127
1128 for (i = 1; i < num; i++) {
1129 APPL_TRACE_DEBUG("%s: sep_info[%d] SEID: %d", __func__, i, p_seid[i - 1]);
1130 /* initialize the sep_info[] to get capabilities */
1131 p_scb->sep_info[i].in_use = false;
1132 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1133 p_scb->sep_info[i].media_type = p_scb->media_type;
1134 p_scb->sep_info[i].seid = p_seid[i - 1];
1135 }
1136
1137 /* only in case of local sep as SRC we need to look for other SEPs, In case
1138 * of SINK we don't */
1139 if (local_sep == AVDT_TSEP_SRC) {
1140 /* Make sure UUID has been initialized... */
1141 if (p_scb->uuid_int == 0) p_scb->uuid_int = p_scb->open_api.uuid;
1142 bta_av_next_getcap(p_scb, p_data);
1143 }
1144 }
1145 }
1146
1147 /*******************************************************************************
1148 *
1149 * Function bta_av_str_opened
1150 *
1151 * Description Stream opened OK (incoming/outgoing).
1152 *
1153 * Returns void
1154 *
1155 ******************************************************************************/
bta_av_str_opened(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1156 void bta_av_str_opened(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1157 tBTA_AV_CONN_CHG msg;
1158 char remote_name[BTM_MAX_REM_BD_NAME_LEN] = "";
1159 uint8_t* p;
1160
1161 APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x", __func__,
1162 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1163
1164 msg.hdr.layer_specific = p_scb->hndl;
1165 msg.is_up = true;
1166 msg.peer_addr = p_scb->PeerAddress();
1167 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1168 bta_av_conn_chg((tBTA_AV_DATA*)&msg);
1169 /* set the congestion flag, so AV would not send media packets by accident */
1170 p_scb->cong = true;
1171 p_scb->offload_start_pending = false;
1172 // Don't use AVDTP SUSPEND for restrict listed devices
1173 btif_storage_get_stored_remote_name(p_scb->PeerAddress(), remote_name);
1174 if (interop_match_name(INTEROP_DISABLE_AVDTP_SUSPEND, remote_name) ||
1175 interop_match_addr(INTEROP_DISABLE_AVDTP_SUSPEND,
1176 &p_scb->PeerAddress())) {
1177 LOG_INFO("%s: disable AVDTP SUSPEND: interop matched name %s address %s",
1178 __func__, remote_name, p_scb->PeerAddress().ToString().c_str());
1179 p_scb->suspend_sup = false;
1180 }
1181
1182 p_scb->stream_mtu =
1183 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1184 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__, p_scb->l2c_cid,
1185 p_scb->stream_mtu);
1186
1187 /* Set the media channel as high priority */
1188 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_HIGH);
1189 L2CA_SetChnlFlushability(p_scb->l2c_cid, true);
1190
1191 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
1192 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1193
1194 p_scb->l2c_bufs = 0;
1195 p_scb->p_cos->open(p_scb->hndl, p_scb->PeerAddress(), p_scb->stream_mtu);
1196
1197 {
1198 /* TODO check if other audio channel is open.
1199 * If yes, check if reconfig is needed
1200 * Rigt now we do not do this kind of checking.
1201 * BTA-AV is INT for 2nd audio connection.
1202 * The application needs to make sure the current codec_info is proper.
1203 * If one audio connection is open and another SNK attempts to connect to
1204 * AV,
1205 * the connection will be rejected.
1206 */
1207 /* check if other audio channel is started. If yes, start */
1208 tBTA_AV_OPEN open;
1209 open.bd_addr = p_scb->PeerAddress();
1210 open.chnl = p_scb->chnl;
1211 open.hndl = p_scb->hndl;
1212 open.status = BTA_AV_SUCCESS;
1213 open.edr = 0;
1214 p = BTM_ReadRemoteFeatures(p_scb->PeerAddress());
1215 if (p != NULL) {
1216 if (HCI_EDR_ACL_2MPS_SUPPORTED(p)) open.edr |= BTA_AV_EDR_2MBPS;
1217 if (HCI_EDR_ACL_3MPS_SUPPORTED(p)) {
1218 if (!interop_match_addr(INTEROP_2MBPS_LINK_ONLY,
1219 &p_scb->PeerAddress())) {
1220 open.edr |= BTA_AV_EDR_3MBPS;
1221 }
1222 }
1223 }
1224 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr, p_scb->hdi);
1225 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1226 open.starting = false;
1227 open.sep = AVDT_TSEP_SNK;
1228 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1229 open.starting = bta_av_chk_start(p_scb);
1230 open.sep = AVDT_TSEP_SRC;
1231 }
1232
1233 tBTA_AV bta_av_data;
1234 bta_av_data.open = open;
1235 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1236 if (open.starting) {
1237 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1238 }
1239 }
1240
1241 // This code is used to pass PTS TC for AVDTP ABORT
1242 char value[PROPERTY_VALUE_MAX] = {0};
1243 if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false")) &&
1244 (!strcmp(value, "true"))) {
1245 APPL_TRACE_ERROR("%s: Calling AVDT_AbortReq", __func__);
1246 AVDT_AbortReq(p_scb->avdt_handle);
1247 }
1248 }
1249
1250 /*******************************************************************************
1251 *
1252 * Function bta_av_security_ind
1253 *
1254 * Description Handle an AVDTP security indication.
1255 *
1256 * Returns void
1257 *
1258 ******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1259 void bta_av_security_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1260 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1261
1262 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1263 tBTA_AV_PROTECT_REQ protect_req;
1264 protect_req.chnl = p_scb->chnl;
1265 protect_req.hndl = p_scb->hndl;
1266 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1267 protect_req.len = p_data->str_msg.msg.security_ind.len;
1268
1269 tBTA_AV bta_av_data;
1270 bta_av_data.protect_req = protect_req;
1271 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, &bta_av_data);
1272 }
1273 /* app doesn't support security indication; respond with failure */
1274 else {
1275 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
1276 0);
1277 }
1278 }
1279
1280 /*******************************************************************************
1281 *
1282 * Function bta_av_security_cfm
1283 *
1284 * Description Handle an AVDTP security confirm.
1285 *
1286 * Returns void
1287 *
1288 ******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1289 void bta_av_security_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1290 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1291 tBTA_AV_PROTECT_RSP protect_rsp;
1292 protect_rsp.chnl = p_scb->chnl;
1293 protect_rsp.hndl = p_scb->hndl;
1294 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1295 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1296 protect_rsp.err_code = p_data->str_msg.msg.hdr.err_code;
1297
1298 tBTA_AV bta_av_data;
1299 bta_av_data.protect_rsp = protect_rsp;
1300 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, &bta_av_data);
1301 }
1302 }
1303
1304 /*******************************************************************************
1305 *
1306 * Function bta_av_do_close
1307 *
1308 * Description Close stream.
1309 *
1310 * Returns void
1311 *
1312 ******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1313 void bta_av_do_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1314 APPL_TRACE_DEBUG("%s: p_scb->co_started=%d", __func__, p_scb->co_started);
1315
1316 /* stop stream if started */
1317 if (p_scb->co_started) {
1318 bta_av_str_stopped(p_scb, NULL);
1319 }
1320 alarm_cancel(p_scb->link_signalling_timer);
1321
1322 /* close stream */
1323 p_scb->started = false;
1324 p_scb->use_rtp_header_marker_bit = false;
1325
1326 /* drop the buffers queued in L2CAP */
1327 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1328
1329 AVDT_CloseReq(p_scb->avdt_handle);
1330 /* just in case that the link is congested, link is flow controled by peer or
1331 * for whatever reason the the close request can not be sent in time.
1332 * when this timer expires, AVDT_DisconnectReq will be called to disconnect
1333 * the link
1334 */
1335 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
1336 BTA_AV_API_CLOSE_EVT, p_scb->hndl);
1337 }
1338
1339 /*******************************************************************************
1340 *
1341 * Function bta_av_connect_req
1342 *
1343 * Description Connect AVDTP connection.
1344 *
1345 * Returns void
1346 *
1347 ******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1348 void bta_av_connect_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1349 APPL_TRACE_DEBUG("%s: peer %s coll_mask=0x%02x", __func__,
1350 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
1351 p_scb->sdp_discovery_started = false;
1352 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
1353 /* SNK initiated L2C connection while SRC was doing SDP. */
1354 /* Wait until timeout to check if SNK starts signalling. */
1355 APPL_TRACE_WARNING("%s: coll_mask=0x%02x incoming timer is up", __func__,
1356 p_scb->coll_mask);
1357 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
1358 APPL_TRACE_EVENT("%s: updated coll_mask=0x%02x", __func__,
1359 p_scb->coll_mask);
1360 return;
1361 }
1362
1363 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
1364 }
1365
1366 /*******************************************************************************
1367 *
1368 * Function bta_av_sdp_failed
1369 *
1370 * Description Service discovery failed.
1371 *
1372 * Returns void
1373 *
1374 ******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1375 void bta_av_sdp_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1376 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1377 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1378
1379 if (p_scb->open_status == BTA_AV_SUCCESS) {
1380 p_scb->open_status = BTA_AV_FAIL_SDP;
1381 }
1382
1383 p_scb->sdp_discovery_started = false;
1384 bta_av_str_closed(p_scb, p_data);
1385 }
1386
1387 /*******************************************************************************
1388 *
1389 * Function bta_av_disc_results
1390 *
1391 * Description Handle the AVDTP discover results. Search through the
1392 * results and find the first available stream, and get
1393 * its capabilities.
1394 *
1395 * Returns void
1396 *
1397 ******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1398 void bta_av_disc_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1399 uint8_t num_snks = 0, num_srcs = 0, i;
1400 /* our uuid in case we initiate connection */
1401 uint16_t uuid_int = p_scb->uuid_int;
1402
1403 APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x initiator UUID 0x%x", __func__,
1404 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1405 uuid_int);
1406
1407 /* store number of stream endpoints returned */
1408 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1409
1410 for (i = 0; i < p_scb->num_seps; i++) {
1411 /* steam not in use, is a sink, and is audio */
1412 if ((!p_scb->sep_info[i].in_use) &&
1413 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1414 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1415 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1416 num_snks++;
1417
1418 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1419 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1420 num_srcs++;
1421 }
1422 }
1423
1424 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1425 num_snks, num_srcs, uuid_int);
1426 p_scb->num_disc_snks = num_snks;
1427 p_scb->num_disc_srcs = num_srcs;
1428
1429 /* if we got any */
1430 if (p_scb->num_seps > 0) {
1431 /* initialize index into discovery results */
1432 p_scb->sep_info_idx = 0;
1433
1434 /* get the capabilities of the first available stream */
1435 bta_av_next_getcap(p_scb, p_data);
1436 }
1437 /* else we got discover response but with no streams; we're done */
1438 else {
1439 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1440 p_scb->PeerAddress().ToString().c_str());
1441 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1442 }
1443 }
1444
1445 /*******************************************************************************
1446 *
1447 * Function bta_av_disc_res_as_acp
1448 *
1449 * Description Handle the AVDTP discover results. Search through the
1450 * results and find the first available stream, and get
1451 * its capabilities.
1452 *
1453 * Returns void
1454 *
1455 ******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1456 void bta_av_disc_res_as_acp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1457 uint8_t num_snks = 0, i;
1458
1459 APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x", __func__,
1460 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1461
1462 /* store number of stream endpoints returned */
1463 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1464
1465 for (i = 0; i < p_scb->num_seps; i++) {
1466 /* steam is a sink, and is audio */
1467 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1468 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1469 p_scb->sep_info[i].in_use = false;
1470 num_snks++;
1471 }
1472 }
1473 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1474 num_snks, 0, UUID_SERVCLASS_AUDIO_SOURCE);
1475 p_scb->num_disc_snks = num_snks;
1476 p_scb->num_disc_srcs = 0;
1477
1478 /* if we got any */
1479 if (p_scb->num_seps > 0) {
1480 /* initialize index into discovery results */
1481 p_scb->sep_info_idx = 0;
1482
1483 /* get the capabilities of the first available stream */
1484 bta_av_next_getcap(p_scb, p_data);
1485 }
1486 /* else we got discover response but with no streams; we're done */
1487 else {
1488 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1489 p_scb->PeerAddress().ToString().c_str());
1490 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1491 }
1492 }
1493
1494 /*******************************************************************************
1495 *
1496 * Function bta_av_save_caps
1497 *
1498 * Description report the SNK SEP capabilities to application
1499 *
1500 * Returns void
1501 *
1502 ******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1503 void bta_av_save_caps(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1504 AvdtpSepConfig cfg;
1505 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1506 uint8_t old_wait = p_scb->wait;
1507 bool getcap_done = false;
1508
1509 APPL_TRACE_DEBUG(
1510 "%s: peer %s bta_handle:0x%x num_seps:%d sep_info_idx:%d wait:0x%x",
1511 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1512 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1513 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1514 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
1515
1516 cfg = p_scb->peer_cap;
1517 /* let application know the capability of the SNK */
1518 if (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1519 &p_scb->sep_info_idx, p_info->seid, &cfg.num_protect,
1520 cfg.protect_info) != A2DP_SUCCESS) {
1521 p_scb->sep_info_idx++;
1522 APPL_TRACE_DEBUG("%s: result: next sep_info_idx:%d", __func__,
1523 p_scb->sep_info_idx);
1524 } else {
1525 // All capabilities found
1526 getcap_done = true;
1527 APPL_TRACE_DEBUG("%s: result: done sep_info_idx:%d", __func__,
1528 p_scb->sep_info_idx);
1529 }
1530 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1531 A2DP_CodecInfoString(cfg.codec_info).c_str());
1532
1533 if (p_scb->num_seps > p_scb->sep_info_idx && !getcap_done) {
1534 /* Some devices have seps at the end of the discover list, which is not */
1535 /* matching media type(video not audio). */
1536 /* In this case, we are done with getcap without sending another */
1537 /* request to AVDT. */
1538 if (!bta_av_next_getcap(p_scb, p_data)) getcap_done = true;
1539 } else {
1540 getcap_done = true;
1541 }
1542
1543 if (getcap_done) {
1544 APPL_TRACE_DEBUG("%s: getcap_done: num_seps:%d sep_info_idx:%d wait:0x%x",
1545 __func__, p_scb->num_seps, p_scb->sep_info_idx,
1546 p_scb->wait);
1547 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON | BTA_AV_WAIT_ACP_CAPS_STARTED);
1548 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) {
1549 bta_av_start_ok(p_scb, NULL);
1550 }
1551 }
1552 }
1553
1554 /*******************************************************************************
1555 *
1556 * Function bta_av_set_use_rc
1557 *
1558 * Description set to use AVRC for this stream control block.
1559 *
1560 * Returns void
1561 *
1562 ******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1563 void bta_av_set_use_rc(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1564 p_scb->use_rc = true;
1565 }
1566
1567 /*******************************************************************************
1568 *
1569 * Function bta_av_cco_close
1570 *
1571 * Description call close call-out function.
1572 *
1573 * Returns void
1574 *
1575 ******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1576 void bta_av_cco_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1577 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x", __func__,
1578 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1579 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
1580 }
1581
1582 /*******************************************************************************
1583 *
1584 * Function bta_av_open_failed
1585 *
1586 * Description Failed to open an AVDT stream
1587 *
1588 * Returns void
1589 *
1590 ******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1591 void bta_av_open_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1592 bool is_av_opened = false;
1593 tBTA_AV_SCB* p_opened_scb = NULL;
1594 uint8_t idx;
1595
1596 APPL_TRACE_ERROR("%s: peer_addr=%s", __func__,
1597 p_scb->PeerAddress().ToString().c_str());
1598 p_scb->open_status = BTA_AV_FAIL_STREAM;
1599 bta_av_cco_close(p_scb, p_data);
1600
1601 /* check whether there is already an opened audio or video connection with the
1602 * same device */
1603 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (!is_av_opened); idx++) {
1604 p_opened_scb = bta_av_cb.p_scb[idx];
1605 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) &&
1606 (p_opened_scb->PeerAddress() == p_scb->PeerAddress()))
1607 is_av_opened = true;
1608 }
1609
1610 /* if there is already an active AV connnection with the same bd_addr,
1611 don't send disconnect req, just report the open event with
1612 BTA_AV_FAIL_GET_CAP status */
1613 if (is_av_opened) {
1614 tBTA_AV_OPEN open;
1615 open.bd_addr = p_scb->PeerAddress();
1616 open.chnl = p_scb->chnl;
1617 open.hndl = p_scb->hndl;
1618 open.status = BTA_AV_FAIL_GET_CAP;
1619 open.starting = bta_av_chk_start(p_scb);
1620 open.edr = 0;
1621 /* set the state back to initial state */
1622 bta_av_set_scb_sst_init(p_scb);
1623
1624 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1625 open.sep = AVDT_TSEP_SNK;
1626 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1627 open.sep = AVDT_TSEP_SRC;
1628 }
1629
1630 APPL_TRACE_ERROR(
1631 "%s: there is already an active connection: peer_addr=%s chnl=%d "
1632 "hndl=0x%x status=%d starting=%d edr=%d",
1633 __func__, open.bd_addr.ToString().c_str(), open.chnl, open.hndl,
1634 open.status, open.starting, open.edr);
1635
1636 tBTA_AV bta_av_data;
1637 bta_av_data.open = open;
1638 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1639 } else {
1640 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
1641 }
1642 }
1643
1644 /*******************************************************************************
1645 *
1646 * Function bta_av_getcap_results
1647 *
1648 * Description Handle the AVDTP get capabilities results. Check the codec
1649 * type and see if it matches ours. If it does not, get the
1650 * capabilities of the next stream, if any.
1651 *
1652 * Returns void
1653 *
1654 ******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1655 void bta_av_getcap_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1656 AvdtpSepConfig cfg = p_scb->cfg;
1657 uint8_t media_type = A2DP_GetMediaType(p_scb->peer_cap.codec_info);
1658 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1659
1660 cfg.num_codec = 1;
1661 cfg.num_protect = p_scb->peer_cap.num_protect;
1662 memcpy(cfg.codec_info, p_scb->peer_cap.codec_info, AVDT_CODEC_SIZE);
1663 memcpy(cfg.protect_info, p_scb->peer_cap.protect_info, AVDT_PROTECT_SIZE);
1664
1665 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x num_codec:%d psc_mask=0x%x",
1666 __func__, p_scb->PeerAddress().ToString().c_str(),
1667 p_scb->hndl, p_scb->peer_cap.num_codec, p_scb->cfg.psc_mask);
1668 APPL_TRACE_DEBUG("%s: media type 0x%x, 0x%x", __func__, media_type,
1669 p_scb->media_type);
1670 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1671 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1672
1673 /* if codec present and we get a codec configuration */
1674 if ((p_scb->peer_cap.num_codec != 0) && (media_type == p_scb->media_type) &&
1675 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1676 &p_scb->sep_info_idx, p_info->seid,
1677 &cfg.num_protect,
1678 cfg.protect_info) == A2DP_SUCCESS)) {
1679 /* UUID for which connection was initiatied */
1680 uint16_t uuid_int = p_scb->uuid_int;
1681
1682 /* save copy of codec configuration */
1683 p_scb->cfg = cfg;
1684
1685 APPL_TRACE_DEBUG("%s: result: sep_info_idx=%d", __func__,
1686 p_scb->sep_info_idx);
1687 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1688 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1689
1690 APPL_TRACE_DEBUG("%s: initiator UUID = 0x%x", __func__, uuid_int);
1691 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1692 bta_av_adjust_seps_idx(p_scb,
1693 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1694 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1695 bta_av_adjust_seps_idx(p_scb,
1696 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1697 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
1698 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
1699
1700 /* use only the services peer supports */
1701 cfg.psc_mask &= p_scb->peer_cap.psc_mask;
1702 p_scb->cur_psc_mask = cfg.psc_mask;
1703 APPL_TRACE_DEBUG(
1704 "%s: peer %s bta_handle:0x%x sep_idx:%d sep_info_idx:%d "
1705 "cur_psc_mask:0x%x",
1706 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1707 p_scb->sep_idx, p_scb->sep_info_idx, p_scb->cur_psc_mask);
1708
1709 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1710 (p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
1711 APPL_TRACE_DEBUG("%s: configure decoder for Sink connection", __func__);
1712 tBTA_AV_MEDIA av_sink_codec_info;
1713 av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
1714 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1715 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
1716 p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
1717 }
1718
1719 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) {
1720 A2DP_AdjustCodec(cfg.codec_info);
1721 }
1722
1723 /* open the stream */
1724 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->PeerAddress(),
1725 p_scb->hdi, p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1726 } else {
1727 /* try the next stream, if any */
1728 p_scb->sep_info_idx++;
1729 bta_av_next_getcap(p_scb, p_data);
1730 }
1731 }
1732
1733 /*******************************************************************************
1734 *
1735 * Function bta_av_setconfig_rej
1736 *
1737 * Description Send AVDTP set config reject.
1738 *
1739 * Returns void
1740 *
1741 ******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1742 void bta_av_setconfig_rej(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1743 tBTA_AV_REJECT reject;
1744 uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
1745
1746 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1747 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
1748 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
1749 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1750
1751 reject.bd_addr = p_data->str_msg.bd_addr;
1752 reject.hndl = p_scb->hndl;
1753
1754 tBTA_AV bta_av_data;
1755 bta_av_data.reject = reject;
1756 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, &bta_av_data);
1757 }
1758
1759 /*******************************************************************************
1760 *
1761 * Function bta_av_discover_req
1762 *
1763 * Description Send an AVDTP discover request to the peer.
1764 *
1765 * Returns void
1766 *
1767 ******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1768 void bta_av_discover_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1769 /* send avdtp discover request */
1770
1771 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
1772 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
1773 }
1774
1775 /*******************************************************************************
1776 *
1777 * Function bta_av_conn_failed
1778 *
1779 * Description AVDTP connection failed.
1780 *
1781 * Returns void
1782 *
1783 ******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1784 void bta_av_conn_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1785 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1786 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1787
1788 p_scb->open_status = BTA_AV_FAIL_STREAM;
1789 bta_av_str_closed(p_scb, p_data);
1790 }
1791
1792 /*******************************************************************************
1793 *
1794 * Function bta_av_do_start
1795 *
1796 * Description Start stream.
1797 *
1798 * Returns void
1799 *
1800 ******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1801 void bta_av_do_start(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1802 LOG_INFO(
1803 "A2dp stream start peer:%s sco_occupied:%s av_role:0x%x started:%s "
1804 "wait:0x%x",
1805 PRIVATE_ADDRESS(p_scb->PeerAddress()),
1806 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1807 logbool(p_scb->started).c_str(), p_scb->wait);
1808 if (bta_av_cb.sco_occupied) {
1809 LOG_WARN("A2dp stream start failed");
1810 bta_av_start_failed(p_scb, p_data);
1811 return;
1812 }
1813
1814 /* disallow role switch during streaming, only if we are the central role
1815 * i.e. allow role switch, if we are peripheral.
1816 * It would not hurt us, if the peer device wants us to be central */
1817 tHCI_ROLE cur_role;
1818 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
1819 (cur_role == HCI_ROLE_CENTRAL)) {
1820 BTM_block_role_switch_for(p_scb->PeerAddress());
1821 }
1822 BTM_block_sniff_mode_for(p_scb->PeerAddress());
1823
1824 if (p_scb->started) {
1825 p_scb->role |= BTA_AV_ROLE_START_INT;
1826 if (p_scb->wait != 0) {
1827 LOG_WARN(
1828 "%s: peer %s start stream request ignored: "
1829 "already waiting: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1830 __func__, p_scb->PeerAddress().ToString().c_str(),
1831 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1832 logbool(p_scb->started).c_str(), p_scb->wait);
1833 return;
1834 }
1835 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
1836 notify_start_failed(p_scb);
1837 } else {
1838 bta_av_start_ok(p_scb, NULL);
1839 }
1840 return;
1841 }
1842
1843 if ((p_scb->role & BTA_AV_ROLE_START_INT) != 0) {
1844 LOG_WARN(
1845 "%s: peer %s start stream request ignored: "
1846 "already initiated: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1847 __func__, p_scb->PeerAddress().ToString().c_str(),
1848 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1849 logbool(p_scb->started).c_str(), p_scb->wait);
1850 return;
1851 }
1852
1853 p_scb->role |= BTA_AV_ROLE_START_INT;
1854 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1855 uint16_t result = AVDT_StartReq(&p_scb->avdt_handle, 1);
1856 if (result != AVDT_SUCCESS) {
1857 LOG_ERROR("%s: AVDT_StartReq failed for peer %s result:%d", __func__,
1858 p_scb->PeerAddress().ToString().c_str(), result);
1859 bta_av_start_failed(p_scb, p_data);
1860 }
1861 LOG_INFO(
1862 "%s: peer %s start requested: sco_occupied:%s role:0x%x "
1863 "started:%s wait:0x%x",
1864 __func__, p_scb->PeerAddress().ToString().c_str(),
1865 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1866 logbool(p_scb->started).c_str(), p_scb->wait);
1867 }
1868
1869 /*******************************************************************************
1870 *
1871 * Function bta_av_str_stopped
1872 *
1873 * Description Stream stopped.
1874 *
1875 * Returns void
1876 *
1877 ******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1878 void bta_av_str_stopped(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1879 tBTA_AV_SUSPEND suspend_rsp;
1880 uint8_t start = p_scb->started;
1881 bool sus_evt = true;
1882 BT_HDR* p_buf;
1883
1884 APPL_TRACE_ERROR(
1885 "%s: peer %s bta_handle:0x%x audio_open_cnt:%d, p_data %p start:%d",
1886 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1887 bta_av_cb.audio_open_cnt, p_data, start);
1888
1889 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1890 BTM_unblock_role_switch_for(p_scb->PeerAddress());
1891 BTM_unblock_sniff_mode_for(p_scb->PeerAddress());
1892
1893 if (p_scb->co_started) {
1894 if (p_scb->offload_started) {
1895 bta_av_vendor_offload_stop();
1896 p_scb->offload_started = false;
1897 }
1898
1899 bta_av_stream_chg(p_scb, false);
1900 p_scb->co_started = false;
1901
1902 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
1903 }
1904
1905 /* if q_info.a2dp_list is not empty, drop it now */
1906 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
1907 while (!list_is_empty(p_scb->a2dp_list)) {
1908 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
1909 list_remove(p_scb->a2dp_list, p_buf);
1910 osi_free(p_buf);
1911 }
1912
1913 /* drop the audio buffers queued in L2CAP */
1914 if (p_data && p_data->api_stop.flush)
1915 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1916 }
1917
1918 suspend_rsp.chnl = p_scb->chnl;
1919 suspend_rsp.hndl = p_scb->hndl;
1920
1921 if (p_data && p_data->api_stop.suspend) {
1922 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, sup:%d", __func__,
1923 p_scb->PeerAddress().ToString().c_str(), start,
1924 p_scb->suspend_sup);
1925 if ((start) && (p_scb->suspend_sup)) {
1926 sus_evt = false;
1927 p_scb->l2c_bufs = 0;
1928 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
1929 }
1930
1931 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is
1932 * true*/
1933 if ((sus_evt) && (p_scb->state != BTA_AV_RCFG_SST)) {
1934 suspend_rsp.status = BTA_AV_SUCCESS;
1935 suspend_rsp.initiator = true;
1936 tBTA_AV bta_av_data;
1937 bta_av_data.suspend = suspend_rsp;
1938 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
1939 }
1940 } else {
1941 suspend_rsp.status = BTA_AV_SUCCESS;
1942 suspend_rsp.initiator = true;
1943 APPL_TRACE_EVENT("%s: status %d", __func__, suspend_rsp.status);
1944
1945 // Send STOP_EVT event only if not in reconfiguring state.
1946 // However, we should send STOP_EVT if we are reconfiguring when taking
1947 // the Close->Configure->Open->Start path.
1948 if (p_scb->state != BTA_AV_RCFG_SST ||
1949 (p_data && p_data->api_stop.reconfig_stop)) {
1950 tBTA_AV bta_av_data;
1951 bta_av_data.suspend = suspend_rsp;
1952 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, &bta_av_data);
1953 }
1954 }
1955 }
1956
1957 /*******************************************************************************
1958 *
1959 * Function bta_av_reconfig
1960 *
1961 * Description process the reconfigure request.
1962 * save the parameter in control block and
1963 * suspend, reconfigure or close the stream
1964 *
1965 * Returns void
1966 *
1967 ******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1968 void bta_av_reconfig(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1969 AvdtpSepConfig* p_cfg;
1970 tBTA_AV_API_STOP stop;
1971 tBTA_AV_API_RCFG* p_rcfg = &p_data->api_reconfig;
1972
1973 APPL_TRACE_DEBUG("%s: r:%d, s:%d idx: %d (o:%d)", __func__, p_scb->recfg_sup,
1974 p_scb->suspend_sup, p_scb->rcfg_idx, p_scb->sep_info_idx);
1975
1976 p_scb->num_recfg = 0;
1977 /* store the new configuration in control block */
1978 p_cfg = &p_scb->cfg;
1979
1980 alarm_cancel(p_scb->avrc_ct_timer);
1981
1982 LOG_DEBUG("p_scb->sep_info_idx=%d p_scb->rcfg_idx=%d p_rcfg->sep_info_idx=%d",
1983 p_scb->sep_info_idx, p_scb->rcfg_idx, p_rcfg->sep_info_idx);
1984 LOG_DEBUG("Peer capable codec: %s",
1985 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
1986 LOG_DEBUG("Current codec: %s",
1987 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1988 LOG_DEBUG("Reconfig codec: %s",
1989 A2DP_CodecInfoString(p_rcfg->codec_info).c_str());
1990
1991 BTM_LogHistory(
1992 kBtmLogTag, p_scb->PeerAddress(), "Codec reconfig",
1993 base::StringPrintf("%s => %s", A2DP_CodecName(p_scb->cfg.codec_info),
1994 A2DP_CodecName(p_rcfg->codec_info)));
1995
1996 p_cfg->num_protect = p_rcfg->num_protect;
1997 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
1998 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
1999 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2000 p_cfg->psc_mask = p_scb->cur_psc_mask;
2001
2002 // If the requested SEP index is same as the current one, then we
2003 // can Suspend->Reconfigure->Start.
2004 // Otherwise, we have to Close->Configure->Open->Start or
2005 // Close->Configure->Open for streams that are / are not started.
2006 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && p_rcfg->suspend &&
2007 p_scb->recfg_sup && p_scb->suspend_sup) {
2008 if (p_scb->started) {
2009 // Suspend->Reconfigure->Start
2010 stop.flush = false;
2011 stop.suspend = true;
2012 stop.reconfig_stop = false;
2013 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2014 } else {
2015 // Reconfigure
2016 APPL_TRACE_DEBUG("%s: reconfig", __func__);
2017 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2018 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2019 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2020 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2021 }
2022 } else {
2023 // Close the stream first, and then Configure it
2024 APPL_TRACE_DEBUG("%s: Close/Open started: %d state: %d num_protect: %d",
2025 __func__, p_scb->started, p_scb->state,
2026 p_cfg->num_protect);
2027 if (p_scb->started) {
2028 // Close->Configure->Open->Start
2029 if ((p_scb->rcfg_idx != p_scb->sep_info_idx) && p_scb->recfg_sup) {
2030 // Make sure we trigger STOP_EVT when taking the longer road to
2031 // reconfiguration, otherwise we don't call Start.
2032 stop.flush = false;
2033 stop.suspend = false;
2034 stop.reconfig_stop = true;
2035 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2036 } else {
2037 bta_av_str_stopped(p_scb, NULL);
2038 }
2039 p_scb->started = false;
2040 } else {
2041 // Close->Configure->Open
2042 bta_av_str_stopped(p_scb, NULL);
2043 }
2044 // Drop the buffers queued in L2CAP
2045 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2046 AVDT_CloseReq(p_scb->avdt_handle);
2047 }
2048 }
2049
2050 /*******************************************************************************
2051 *
2052 * Function bta_av_data_path
2053 *
2054 * Description Handle stream data path.
2055 *
2056 * Returns void
2057 *
2058 ******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2059 void bta_av_data_path(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2060 BT_HDR* p_buf = NULL;
2061 uint32_t timestamp;
2062 bool new_buf = false;
2063 uint8_t m_pt = 0x60;
2064 tAVDT_DATA_OPT_MASK opt;
2065
2066 if (!p_scb->started) return;
2067
2068 if (p_scb->cong) return;
2069
2070 if (p_scb->use_rtp_header_marker_bit) {
2071 m_pt |= AVDT_MARKER_SET;
2072 }
2073
2074 // Always get the current number of bufs que'd up
2075 p_scb->l2c_bufs =
2076 (uint8_t)L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2077
2078 if (!list_is_empty(p_scb->a2dp_list)) {
2079 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
2080 list_remove(p_scb->a2dp_list, p_buf);
2081 /* use q_info.a2dp data, read the timestamp */
2082 timestamp = *(uint32_t*)(p_buf + 1);
2083 } else {
2084 new_buf = true;
2085 /* A2DP_list empty, call co_data, dup data to other channels */
2086 p_buf = p_scb->p_cos->data(p_scb->cfg.codec_info, ×tamp);
2087
2088 if (p_buf) {
2089 /* use the offset area for the time stamp */
2090 *(uint32_t*)(p_buf + 1) = timestamp;
2091
2092 /* dup the data to other channels */
2093 bta_av_dup_audio_buf(p_scb, p_buf);
2094 }
2095 }
2096
2097 if (p_buf) {
2098 if (p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) {
2099 /* There's a buffer, just queue it to L2CAP.
2100 * There's no need to increment it here, it is always read from
2101 * L2CAP (see above).
2102 */
2103
2104 /* opt is a bit mask, it could have several options set */
2105 opt = AVDT_DATA_OPT_NONE;
2106 if (p_scb->no_rtp_header) {
2107 opt |= AVDT_DATA_OPT_NO_RTP;
2108 }
2109
2110 //
2111 // Fragment the payload if larger than the MTU.
2112 // NOTE: The fragmentation is RTP-compatibie.
2113 //
2114 size_t extra_fragments_n = 0;
2115 if (p_buf->len > 0) {
2116 extra_fragments_n = (p_buf->len / p_scb->stream_mtu) +
2117 ((p_buf->len % p_scb->stream_mtu) ? 1 : 0) - 1;
2118 }
2119 std::vector<BT_HDR*> extra_fragments;
2120 extra_fragments.reserve(extra_fragments_n);
2121
2122 uint8_t* data_begin = (uint8_t*)(p_buf + 1) + p_buf->offset;
2123 uint8_t* data_end = (uint8_t*)(p_buf + 1) + p_buf->offset + p_buf->len;
2124 while (extra_fragments_n-- > 0) {
2125 data_begin += p_scb->stream_mtu;
2126 size_t fragment_len = data_end - data_begin;
2127 if (fragment_len > p_scb->stream_mtu) fragment_len = p_scb->stream_mtu;
2128
2129 BT_HDR* p_buf2 = (BT_HDR*)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
2130 p_buf2->offset = p_buf->offset;
2131 p_buf2->len = 0;
2132 p_buf2->layer_specific = 0;
2133 uint8_t* packet2 =
2134 (uint8_t*)(p_buf2 + 1) + p_buf2->offset + p_buf2->len;
2135 memcpy(packet2, data_begin, fragment_len);
2136 p_buf2->len += fragment_len;
2137 extra_fragments.push_back(p_buf2);
2138 p_buf->len -= fragment_len;
2139 }
2140
2141 if (!extra_fragments.empty()) {
2142 // Reset the RTP Marker bit for all fragments except the last one
2143 m_pt &= ~AVDT_MARKER_SET;
2144 }
2145 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2146 for (size_t i = 0; i < extra_fragments.size(); i++) {
2147 if (i + 1 == extra_fragments.size()) {
2148 // Set the RTP Marker bit for the last fragment
2149 m_pt |= AVDT_MARKER_SET;
2150 }
2151 BT_HDR* p_buf2 = extra_fragments[i];
2152 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf2, timestamp, m_pt, opt);
2153 }
2154 p_scb->cong = true;
2155 } else {
2156 /* there's a buffer, but L2CAP does not seem to be moving data */
2157 if (new_buf) {
2158 /* just got this buffer from co_data,
2159 * put it in queue */
2160 list_append(p_scb->a2dp_list, p_buf);
2161 } else {
2162 /* just dequeue it from the a2dp_list */
2163 if (list_length(p_scb->a2dp_list) < 3) {
2164 /* put it back to the queue */
2165 list_prepend(p_scb->a2dp_list, p_buf);
2166 } else {
2167 /* too many buffers in a2dp_list, drop it. */
2168 bta_av_co_audio_drop(p_scb->hndl, p_scb->PeerAddress());
2169 osi_free(p_buf);
2170 }
2171 }
2172 }
2173 }
2174 }
2175
2176 /*******************************************************************************
2177 *
2178 * Function bta_av_start_ok
2179 *
2180 * Description Stream started.
2181 *
2182 * Returns void
2183 *
2184 ******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2185 void bta_av_start_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2186 bool initiator = false;
2187 bool suspend = false;
2188 uint8_t new_role = p_scb->role;
2189 BT_HDR_RIGID hdr;
2190 tHCI_ROLE cur_role;
2191 uint8_t local_tsep = p_scb->seps[p_scb->sep_idx].tsep;
2192
2193 LOG_INFO("%s: peer %s bta_handle:0x%x wait:0x%x role:0x%x local_tsep:%d",
2194 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2195 p_scb->wait, p_scb->role, local_tsep);
2196
2197 p_scb->started = true;
2198
2199 if (local_tsep == AVDT_TSEP_SRC) {
2200 // The RTP Header marker bit for the A2DP Source encoder
2201 A2dpCodecConfig* codec_config =
2202 bta_av_get_a2dp_peer_current_codec(p_scb->PeerAddress());
2203 CHECK(codec_config != nullptr);
2204 p_scb->use_rtp_header_marker_bit = codec_config->useRtpHeaderMarkerBit();
2205 }
2206
2207 if (p_scb->sco_suspend) {
2208 p_scb->sco_suspend = false;
2209 }
2210
2211 if (new_role & BTA_AV_ROLE_START_INT) initiator = true;
2212
2213 /* for A2DP SINK we do not send get_caps */
2214 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle) &&
2215 (local_tsep == AVDT_TSEP_SNK)) {
2216 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2217 APPL_TRACE_DEBUG("%s: local SEP type is SNK new wait is 0x%x", __func__,
2218 p_scb->wait);
2219 }
2220 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) {
2221 /* role switch has failed */
2222 APPL_TRACE_ERROR(
2223 "%s: peer %s role switch failed: bta_handle:0x%x wait:0x%x, role:0x%x",
2224 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2225 p_scb->wait, p_scb->role);
2226 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2227 p_data = (tBTA_AV_DATA*)&hdr;
2228 hdr.offset = BTA_AV_RS_FAIL;
2229 }
2230 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x use_rtp_header_marker_bit:%s",
2231 __func__, p_scb->PeerAddress().ToString().c_str(),
2232 p_scb->wait,
2233 (p_scb->use_rtp_header_marker_bit) ? "true" : "false");
2234
2235 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) {
2236 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2237 if (p_data->hdr.offset == BTA_AV_RS_FAIL) {
2238 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2239 tBTA_AV_START start;
2240 start.chnl = p_scb->chnl;
2241 start.status = BTA_AV_FAIL_ROLE;
2242 start.hndl = p_scb->hndl;
2243 start.initiator = initiator;
2244 tBTA_AV bta_av_data;
2245 bta_av_data.start = start;
2246 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2247 return;
2248 }
2249 }
2250
2251 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT))
2252 p_scb->q_tag = BTA_AV_Q_TAG_START;
2253 else {
2254 /* The wait flag may be set here while we are already central on the link */
2255 /* this could happen if a role switch complete event occurred during
2256 * reconfig */
2257 /* if we are now central on the link, there is no need to wait for the role
2258 * switch, */
2259 /* complete anymore so we can clear the wait for role switch flag */
2260 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2261 }
2262
2263 if (p_scb->wait &
2264 (BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START)) {
2265 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2266 p_scb->q_tag = BTA_AV_Q_TAG_START;
2267 }
2268
2269 if (p_scb->wait) {
2270 APPL_TRACE_ERROR("%s: peer %s wait:0x%x q_tag:%d not started", __func__,
2271 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
2272 p_scb->q_tag);
2273 /* Clear first bit of p_scb->wait and not to return from this point else
2274 * HAL layer gets blocked. And if there is delay in Get Capability response
2275 * as
2276 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is
2277 * not called
2278 * again from bta_av_save_caps.
2279 */
2280 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2281 }
2282
2283 /* tell role manager to check M/S role */
2284 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2285
2286 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2287
2288 if (p_scb->media_type == AVDT_MEDIA_TYPE_AUDIO) {
2289 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2290 * However, bta_av_stream_chg is not called to increase
2291 * bta_av_cb.audio_count yet.
2292 * If the code were to be re-arranged for some reasons, this number may need
2293 * to be changed
2294 */
2295 p_scb->co_started = bta_av_cb.audio_open_cnt;
2296 }
2297
2298 /* clear the congestion flag */
2299 p_scb->cong = false;
2300
2301 if (new_role & BTA_AV_ROLE_START_INT) {
2302 new_role &= ~BTA_AV_ROLE_START_INT;
2303 } else if ((new_role & BTA_AV_ROLE_AD_ACP) &&
2304 (new_role & BTA_AV_ROLE_SUSPEND_OPT)) {
2305 suspend = true;
2306 }
2307
2308 if (!suspend) {
2309 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2310 bta_av_stream_chg(p_scb, true);
2311 }
2312
2313 {
2314 /* If sink starts stream, disable sniff mode here */
2315 if (!initiator) {
2316 /* If souce is the central role, disable role switch during streaming.
2317 * Otherwise allow role switch, if source is peripheral.
2318 * Because it would not hurt source, if the peer device wants source to be
2319 * central */
2320 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
2321 (cur_role == HCI_ROLE_CENTRAL)) {
2322 BTM_block_role_switch_for(p_scb->PeerAddress());
2323 }
2324 }
2325
2326 p_scb->role = new_role;
2327 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2328 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2329
2330 p_scb->no_rtp_header = false;
2331 p_scb->p_cos->start(p_scb->hndl, p_scb->PeerAddress(),
2332 p_scb->cfg.codec_info, &p_scb->no_rtp_header);
2333 p_scb->co_started = true;
2334
2335 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, role:0x%x, init %d", __func__,
2336 p_scb->PeerAddress().ToString().c_str(), suspend,
2337 p_scb->role, initiator);
2338
2339 tBTA_AV_START start;
2340 start.suspending = suspend;
2341 start.initiator = initiator;
2342 start.chnl = p_scb->chnl;
2343 start.status = BTA_AV_SUCCESS;
2344 start.hndl = p_scb->hndl;
2345 tBTA_AV bta_av_data;
2346 bta_av_data.start = start;
2347 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2348
2349 if (suspend) {
2350 tBTA_AV_API_STOP stop;
2351 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2352 p_scb->cong = true; /* do not allow the media data to go through */
2353 /* do not duplicate the media packets to this channel */
2354 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2355 p_scb->co_started = false;
2356 stop.flush = false;
2357 stop.suspend = true;
2358 stop.reconfig_stop = false;
2359 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA*)&stop);
2360 }
2361 }
2362 }
2363
2364 /*******************************************************************************
2365 *
2366 * Function bta_av_start_failed
2367 *
2368 * Description Stream start failed.
2369 *
2370 * Returns void
2371 *
2372 ******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2373 void bta_av_start_failed(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2374 APPL_TRACE_ERROR(
2375 "%s: peer %s bta_handle:0x%x audio_open_cnt:%d started:%s co_started:%d",
2376 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2377 bta_av_cb.audio_open_cnt, logbool(p_scb->started).c_str(),
2378 p_scb->co_started);
2379
2380 if (!p_scb->started && !p_scb->co_started) {
2381 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2382 notify_start_failed(p_scb);
2383 }
2384
2385 BTM_unblock_role_switch_for(p_scb->PeerAddress());
2386 BTM_unblock_sniff_mode_for(p_scb->PeerAddress());
2387 p_scb->sco_suspend = false;
2388 }
2389
2390 /*******************************************************************************
2391 *
2392 * Function bta_av_str_closed
2393 *
2394 * Description Stream closed.
2395 *
2396 * Returns void
2397 *
2398 ******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2399 void bta_av_str_closed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2400 tBTA_AV data;
2401 tBTA_AV_EVT event;
2402
2403 APPL_TRACE_WARNING(
2404 "%s: peer %s bta_handle:0x%x open_status:%d chnl:%d co_started:%d",
2405 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2406 p_scb->open_status, p_scb->chnl, p_scb->co_started);
2407
2408 BTM_unblock_role_switch_for(p_scb->PeerAddress());
2409 BTM_unblock_sniff_mode_for(p_scb->PeerAddress());
2410 if (bta_av_cb.audio_open_cnt <= 1) {
2411 BTM_default_unblock_role_switch();
2412 }
2413
2414 if (p_scb->open_status != BTA_AV_SUCCESS) {
2415 /* must be failure when opening the stream */
2416 data.open.bd_addr = p_scb->PeerAddress();
2417 data.open.status = p_scb->open_status;
2418 data.open.chnl = p_scb->chnl;
2419 data.open.hndl = p_scb->hndl;
2420
2421 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC)
2422 data.open.sep = AVDT_TSEP_SNK;
2423 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)
2424 data.open.sep = AVDT_TSEP_SRC;
2425
2426 event = BTA_AV_OPEN_EVT;
2427 p_scb->open_status = BTA_AV_SUCCESS;
2428
2429 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2430 bta_av_cleanup(p_scb, p_data);
2431 (*bta_av_cb.p_cback)(event, &data);
2432 } else {
2433 /* do stop if we were started */
2434 if (p_scb->co_started) {
2435 bta_av_str_stopped(p_scb, NULL);
2436 }
2437
2438 {
2439 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
2440 data.close.chnl = p_scb->chnl;
2441 data.close.hndl = p_scb->hndl;
2442 event = BTA_AV_CLOSE_EVT;
2443
2444 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2445 bta_av_cleanup(p_scb, p_data);
2446 (*bta_av_cb.p_cback)(event, &data);
2447 }
2448 }
2449 }
2450
2451 /*******************************************************************************
2452 *
2453 * Function bta_av_clr_cong
2454 *
2455 * Description Clear stream congestion flag.
2456 *
2457 * Returns void
2458 *
2459 ******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2460 void bta_av_clr_cong(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2461 APPL_TRACE_DEBUG("%s", __func__);
2462 if (p_scb->co_started) {
2463 p_scb->cong = false;
2464 }
2465 }
2466
2467 /*******************************************************************************
2468 *
2469 * Function bta_av_suspend_cfm
2470 *
2471 * Description process the suspend response
2472 *
2473 * Returns void
2474 *
2475 ******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2476 void bta_av_suspend_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2477 tBTA_AV_SUSPEND suspend_rsp;
2478 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2479
2480 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x audio_open_cnt:%d err_code:%d",
2481 __func__, p_scb->PeerAddress().ToString().c_str(),
2482 p_scb->hndl, bta_av_cb.audio_open_cnt, err_code);
2483
2484 if (!p_scb->started) {
2485 /* handle the condition where there is a collision of SUSPEND req from
2486 *either side
2487 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2488 */
2489 APPL_TRACE_WARNING("%s: already suspended, ignore, err_code %d", __func__,
2490 err_code);
2491 return;
2492 }
2493
2494 suspend_rsp.status = BTA_AV_SUCCESS;
2495 if (err_code && (err_code != AVDT_ERR_BAD_STATE)) {
2496 suspend_rsp.status = BTA_AV_FAIL;
2497
2498 APPL_TRACE_ERROR("%s: suspend failed, closing connection", __func__);
2499
2500 /* SUSPEND failed. Close connection. */
2501 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2502 } else {
2503 /* only set started to false when suspend is successful */
2504 p_scb->started = false;
2505 }
2506
2507 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2508 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2509 p_scb->cong = false;
2510 }
2511
2512 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2513 BTM_unblock_role_switch_for(p_scb->PeerAddress());
2514 BTM_unblock_sniff_mode_for(p_scb->PeerAddress());
2515
2516 /* in case that we received suspend_ind, we may need to call co_stop here */
2517 if (p_scb->co_started) {
2518 if (p_scb->offload_started) {
2519 bta_av_vendor_offload_stop();
2520 p_scb->offload_started = false;
2521 }
2522 bta_av_stream_chg(p_scb, false);
2523
2524 {
2525 p_scb->co_started = false;
2526 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2527 }
2528 }
2529
2530 {
2531 suspend_rsp.chnl = p_scb->chnl;
2532 suspend_rsp.hndl = p_scb->hndl;
2533 suspend_rsp.initiator = p_data->str_msg.initiator;
2534 tBTA_AV bta_av_data;
2535 bta_av_data.suspend = suspend_rsp;
2536 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
2537 }
2538 }
2539
2540 /*******************************************************************************
2541 *
2542 * Function bta_av_rcfg_str_ok
2543 *
2544 * Description report reconfigure successful
2545 *
2546 * Returns void
2547 *
2548 ******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2549 void bta_av_rcfg_str_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2550 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2551 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x l2c_cid:%d", __func__,
2552 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2553 p_scb->l2c_cid);
2554
2555 if (p_data != NULL) {
2556 // p_data could be NULL if the reconfig was triggered by the local device
2557 p_scb->stream_mtu =
2558 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
2559 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__,
2560 p_scb->l2c_cid, p_scb->stream_mtu);
2561 p_scb->p_cos->update_mtu(p_scb->hndl, p_scb->PeerAddress(),
2562 p_scb->stream_mtu);
2563 }
2564
2565 /* rc listen */
2566 bta_av_st_rc_timer(p_scb, NULL);
2567
2568 /* No need to keep the role bits once reconfig is done. */
2569 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2570 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2571 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2572
2573 {
2574 /* reconfigure success */
2575 tBTA_AV_RECONFIG reconfig;
2576 reconfig.status = BTA_AV_SUCCESS;
2577 reconfig.chnl = p_scb->chnl;
2578 reconfig.hndl = p_scb->hndl;
2579 tBTA_AV bta_av_data;
2580 bta_av_data.reconfig = reconfig;
2581 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2582 }
2583 }
2584
2585 /*******************************************************************************
2586 *
2587 * Function bta_av_rcfg_failed
2588 *
2589 * Description process reconfigure failed
2590 *
2591 * Returns void
2592 *
2593 ******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2594 void bta_av_rcfg_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2595 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2596 p_scb->num_recfg, bta_av_cb.conn_lcb,
2597 p_scb->PeerAddress().ToString().c_str());
2598
2599 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2600 bta_av_cco_close(p_scb, p_data);
2601 /* report failure */
2602 tBTA_AV_RECONFIG reconfig;
2603 reconfig.status = BTA_AV_FAIL_STREAM;
2604 reconfig.chnl = p_scb->chnl;
2605 reconfig.hndl = p_scb->hndl;
2606 tBTA_AV bta_av_data;
2607 bta_av_data.reconfig = reconfig;
2608 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2609 /* go to closing state */
2610 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2611 } else {
2612 /* open failed. try again */
2613 p_scb->num_recfg++;
2614 // conn_lcb is the index bitmask of all used LCBs, and since LCB and SCB use
2615 // the same index, it should be safe to use SCB index here.
2616 if ((bta_av_cb.conn_lcb & (1 << p_scb->hdi)) != 0) {
2617 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
2618 } else {
2619 APPL_TRACE_WARNING("%s: conn_lcb=0x%x bta_handle=0x%x (hdi=%u) no link",
2620 __func__, bta_av_cb.conn_lcb, p_scb->hndl, p_scb->hdi);
2621 bta_av_connect_req(p_scb, NULL);
2622 }
2623 }
2624 }
2625
2626 /*******************************************************************************
2627 *
2628 * Function bta_av_rcfg_connect
2629 *
2630 * Description stream closed. reconnect the stream
2631 *
2632 * Returns void
2633 *
2634 ******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2635 void bta_av_rcfg_connect(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2636 APPL_TRACE_DEBUG("%s", __func__);
2637
2638 p_scb->cong = false;
2639 p_scb->num_recfg++;
2640 APPL_TRACE_DEBUG("%s: num_recfg: %d", __func__, p_scb->num_recfg);
2641 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2642 /* let bta_av_rcfg_failed report fail */
2643 bta_av_rcfg_failed(p_scb, NULL);
2644 } else {
2645 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
2646 }
2647 }
2648
2649 /*******************************************************************************
2650 *
2651 * Function bta_av_rcfg_discntd
2652 *
2653 * Description AVDT disconnected. reconnect the stream
2654 *
2655 * Returns void
2656 *
2657 ******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2658 void bta_av_rcfg_discntd(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2659 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2660 p_scb->num_recfg, bta_av_cb.conn_lcb,
2661 p_scb->PeerAddress().ToString().c_str());
2662
2663 p_scb->num_recfg++;
2664 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2665 /* report failure */
2666 tBTA_AV_RECONFIG reconfig;
2667 reconfig.status = BTA_AV_FAIL_STREAM;
2668 reconfig.chnl = p_scb->chnl;
2669 reconfig.hndl = p_scb->hndl;
2670 tBTA_AV bta_av_data;
2671 bta_av_data.reconfig = reconfig;
2672 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2673 /* report close event & go to init state */
2674 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2675 } else {
2676 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
2677 }
2678 }
2679
2680 /*******************************************************************************
2681 *
2682 * Function bta_av_suspend_cont
2683 *
2684 * Description received the suspend response.
2685 * continue to reconfigure the stream
2686 *
2687 * Returns void
2688 *
2689 ******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2690 void bta_av_suspend_cont(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2691 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2692
2693 APPL_TRACE_DEBUG("%s: err_code=%d", __func__, err_code);
2694
2695 p_scb->started = false;
2696 p_scb->cong = false;
2697 if (err_code) {
2698 if (AVDT_ERR_CONNECT == err_code) {
2699 /* report failure */
2700 tBTA_AV_RECONFIG reconfig;
2701 reconfig.status = BTA_AV_FAIL;
2702 tBTA_AV bta_av_data;
2703 bta_av_data.reconfig = reconfig;
2704 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2705 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
2706 p_scb->PeerAddress().ToString().c_str());
2707 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2708 } else {
2709 APPL_TRACE_ERROR("%s: suspend rejected, try close", __func__);
2710 /* drop the buffers queued in L2CAP */
2711 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2712
2713 AVDT_CloseReq(p_scb->avdt_handle);
2714 }
2715 } else {
2716 APPL_TRACE_DEBUG("%s: calling AVDT_ReconfigReq", __func__);
2717 /* reconfig the stream */
2718
2719 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2720 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2721 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2722 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2723 }
2724 }
2725
2726 /*******************************************************************************
2727 *
2728 * Function bta_av_rcfg_cfm
2729 *
2730 * Description if reconfigure is successful, report the event
2731 * otherwise, close the stream.
2732 *
2733 * Returns void
2734 *
2735 ******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2736 void bta_av_rcfg_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2737 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2738
2739 APPL_TRACE_DEBUG("%s: err_code = %d", __func__, err_code);
2740
2741 // Disable AVDTP RECONFIGURE for rejectlisted devices
2742 bool disable_avdtp_reconfigure = false;
2743 {
2744 char remote_name[BTM_MAX_REM_BD_NAME_LEN] = "";
2745 if (btif_storage_get_stored_remote_name(p_scb->PeerAddress(),
2746 remote_name)) {
2747 if (interop_match_name(INTEROP_DISABLE_AVDTP_RECONFIGURE, remote_name) ||
2748 interop_match_addr(INTEROP_DISABLE_AVDTP_RECONFIGURE,
2749 (const RawAddress*)&p_scb->PeerAddress())) {
2750 LOG_INFO(
2751 "%s: disable AVDTP RECONFIGURE: interop matched "
2752 "name %s address %s",
2753 __func__, remote_name, p_scb->PeerAddress().ToString().c_str());
2754 disable_avdtp_reconfigure = true;
2755 }
2756 }
2757 }
2758
2759 if ((err_code != 0) || disable_avdtp_reconfigure) {
2760 APPL_TRACE_ERROR("%s: reconfig rejected, try close", __func__);
2761 /* Disable reconfiguration feature only with explicit rejection(not with
2762 * timeout) */
2763 if ((err_code != AVDT_ERR_TIMEOUT) || disable_avdtp_reconfigure) {
2764 p_scb->recfg_sup = false;
2765 }
2766 /* started flag is false when reconfigure command is sent */
2767 /* drop the buffers queued in L2CAP */
2768 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2769 AVDT_CloseReq(p_scb->avdt_handle);
2770 } else {
2771 /* update the codec info after rcfg cfm */
2772 APPL_TRACE_DEBUG(
2773 "%s: updating from codec %s to codec %s", __func__,
2774 A2DP_CodecName(p_scb->cfg.codec_info),
2775 A2DP_CodecName(p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info));
2776 memcpy(p_scb->cfg.codec_info,
2777 p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info, AVDT_CODEC_SIZE);
2778 /* take the SSM back to OPEN state */
2779 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2780 }
2781 }
2782
2783 /*******************************************************************************
2784 *
2785 * Function bta_av_rcfg_open
2786 *
2787 * Description AVDT is connected. open the stream with the new
2788 * configuration
2789 *
2790 * Returns void
2791 *
2792 ******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2793 void bta_av_rcfg_open(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2794 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x num_disc_snks:%d", __func__,
2795 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2796 p_scb->num_disc_snks);
2797
2798 if (p_scb->num_disc_snks == 0) {
2799 /* Need to update call-out module so that it will be ready for discover */
2800 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2801
2802 /* send avdtp discover request */
2803 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
2804 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
2805 } else {
2806 APPL_TRACE_DEBUG("%s: calling AVDT_OpenReq()", __func__);
2807 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2808 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2809
2810 /* we may choose to use a different SEP at reconfig.
2811 * adjust the sep_idx now */
2812 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2813 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
2814 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
2815
2816 /* open the stream with the new config */
2817 p_scb->sep_info_idx = p_scb->rcfg_idx;
2818 AVDT_OpenReq(p_scb->avdt_handle, p_scb->PeerAddress(), p_scb->hdi,
2819 p_scb->sep_info[p_scb->sep_info_idx].seid, &p_scb->cfg);
2820 }
2821 }
2822
2823 /*******************************************************************************
2824 *
2825 * Function bta_av_security_rej
2826 *
2827 * Description Send an AVDTP security reject.
2828 *
2829 * Returns void
2830 *
2831 ******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2832 void bta_av_security_rej(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2833 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2834 NULL, 0);
2835 }
2836
2837 /*******************************************************************************
2838 *
2839 * Function bta_av_chk_2nd_start
2840 *
2841 * Description check if this is 2nd stream and if it needs to be started.
2842 * This function needs to be kept very similar to
2843 * bta_av_chk_start
2844 *
2845 * Returns void
2846 *
2847 ******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2848 void bta_av_chk_2nd_start(tBTA_AV_SCB* p_scb,
2849 UNUSED_ATTR tBTA_AV_DATA* p_data) {
2850 LOG_INFO(
2851 "%s: peer %s channel:%d bta_av_cb.audio_open_cnt:%d role:0x%x "
2852 "features:0x%x",
2853 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->chnl,
2854 bta_av_cb.audio_open_cnt, p_scb->role, bta_av_cb.features);
2855
2856 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2) &&
2857 (((p_scb->role & BTA_AV_ROLE_AD_ACP) == 0) || // Outgoing connection or
2858 (bta_av_cb.features & BTA_AV_FEAT_ACP_START))) { // Auto-starting option
2859 // More than one audio channel is connected.
2860 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) {
2861 // This channel does not need to be reconfigured.
2862 // If there is other channel streaming, start the stream now.
2863 bool new_started = false;
2864 for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
2865 tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i];
2866 if (p_scb == p_scbi) {
2867 continue;
2868 }
2869 if (p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) {
2870 if (!new_started) {
2871 // Start the new stream
2872 new_started = true;
2873 LOG_INFO(
2874 "%s: starting new stream for peer %s because peer %s "
2875 "already started",
2876 __func__, p_scb->PeerAddress().ToString().c_str(),
2877 p_scbi->PeerAddress().ToString().c_str());
2878 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2879 }
2880 // May need to update the flush timeout of this already started stream
2881 if (p_scbi->co_started != bta_av_cb.audio_open_cnt) {
2882 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2883 }
2884 }
2885 }
2886 }
2887 }
2888 }
2889
2890 /*******************************************************************************
2891 *
2892 * Function bta_av_open_rc
2893 *
2894 * Description Send a message to main SM to open RC channel.
2895 *
2896 * Returns void
2897 *
2898 ******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2899 void bta_av_open_rc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2900 APPL_TRACE_DEBUG("%s: use_rc: %d, wait: 0x%x role: 0x%x", __func__,
2901 p_scb->use_rc, p_scb->wait, p_scb->role);
2902 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) &&
2903 (p_scb->q_tag == BTA_AV_Q_TAG_START)) {
2904 /* waiting for role switch for some reason & the timer expires */
2905 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT)) {
2906 APPL_TRACE_ERROR(
2907 "%s: failed to start streaming for role management reasons!!",
2908 __func__);
2909 alarm_cancel(p_scb->avrc_ct_timer);
2910
2911 tBTA_AV_START start;
2912 start.chnl = p_scb->chnl;
2913 start.status = BTA_AV_FAIL_ROLE;
2914 start.initiator = true;
2915 start.hndl = p_scb->hndl;
2916 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2917 bta_av_cb.rs_idx = 0;
2918 tBTA_AV bta_av_data;
2919 bta_av_data.start = start;
2920 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2921 } else {
2922 /* role switch is done. continue to start streaming */
2923 bta_av_cb.rs_idx = 0;
2924 p_data->hdr.offset = BTA_AV_RS_OK;
2925 bta_av_start_ok(p_scb, p_data);
2926 }
2927 return;
2928 }
2929
2930 if (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP)) {
2931 if (bta_av_cb.disc) {
2932 /* AVRC discover db is in use */
2933 if (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) {
2934 /* AVRC channel is not connected. delay a little bit */
2935 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
2936 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
2937 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
2938 } else {
2939 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
2940 }
2941 }
2942 } else {
2943 /* use main SM for AVRC SDP activities */
2944 if (is_new_avrcp_enabled()) {
2945 APPL_TRACE_WARNING("%s: Using the new AVRCP Profile", __func__);
2946 bluetooth::avrcp::AvrcpService::Get()->ConnectDevice(
2947 p_scb->PeerAddress());
2948 } else {
2949 bta_av_rc_disc((uint8_t)(p_scb->hdi + 1));
2950 }
2951 }
2952 } else {
2953 if (BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) {
2954 /* the open API said that this handle does not want a RC connection.
2955 * disconnect it now */
2956 AVRC_Close(p_scb->rc_handle);
2957 }
2958 }
2959 }
2960
2961 /*******************************************************************************
2962 *
2963 * Function bta_av_open_at_inc
2964 *
2965 * Description This function is called if API open is called by application
2966 * while state-machine is at incoming state.
2967 *
2968 * Returns void
2969 *
2970 ******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2971 void bta_av_open_at_inc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2972 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
2973
2974 APPL_TRACE_DEBUG("%s: peer %s coll_mask=0x%02x", __func__,
2975 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
2976
2977 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
2978 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
2979
2980 /* API open will be handled at timeout if SNK did not start signalling. */
2981 /* API open will be ignored if SNK starts signalling. */
2982 } else {
2983 /* SNK did not start signalling, API was called N seconds timeout. */
2984 /* We need to switch to INIT state and start opening connection. */
2985 p_scb->coll_mask = 0;
2986 bta_av_set_scb_sst_init(p_scb);
2987
2988 tBTA_AV_API_OPEN* p_buf =
2989 (tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
2990 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
2991 bta_sys_sendmsg(p_buf);
2992 }
2993 }
2994
offload_vendor_callback(tBTM_VSC_CMPL * param)2995 void offload_vendor_callback(tBTM_VSC_CMPL* param) {
2996 tBTA_AV value{0};
2997 uint8_t sub_opcode = 0;
2998 if (param->param_len) {
2999 APPL_TRACE_DEBUG("%s: param_len = %d status = %d", __func__,
3000 param->param_len, param->p_param_buf[0]);
3001 value.status = static_cast<tBTA_AV_STATUS>(param->p_param_buf[0]);
3002 }
3003 if (value.status == 0) {
3004 sub_opcode = param->p_param_buf[1];
3005 APPL_TRACE_DEBUG("%s: subopcode = %d", __func__, sub_opcode);
3006 switch (sub_opcode) {
3007 case VS_HCI_A2DP_OFFLOAD_STOP:
3008 APPL_TRACE_DEBUG("%s: VS_HCI_STOP_A2DP_MEDIA successful", __func__);
3009 break;
3010 case VS_HCI_A2DP_OFFLOAD_START:
3011 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3012 break;
3013 default:
3014 break;
3015 }
3016 } else {
3017 APPL_TRACE_DEBUG("%s: Offload failed for subopcode= %d", __func__,
3018 sub_opcode);
3019 if (param->opcode != VS_HCI_A2DP_OFFLOAD_STOP)
3020 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3021 }
3022 }
3023
bta_av_vendor_offload_start(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * offload_start)3024 void bta_av_vendor_offload_start(tBTA_AV_SCB* p_scb,
3025 tBT_A2DP_OFFLOAD* offload_start) {
3026 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3027 APPL_TRACE_DEBUG("%s", __func__);
3028
3029 uint8_t* p_param = param;
3030 *p_param++ = VS_HCI_A2DP_OFFLOAD_START;
3031
3032 UINT32_TO_STREAM(p_param, offload_start->codec_type);
3033 UINT16_TO_STREAM(p_param, offload_start->max_latency);
3034 ARRAY_TO_STREAM(p_param, offload_start->scms_t_enable,
3035 static_cast<int>(offload_start->scms_t_enable.size()));
3036 UINT32_TO_STREAM(p_param, offload_start->sample_rate);
3037 UINT8_TO_STREAM(p_param, offload_start->bits_per_sample);
3038 UINT8_TO_STREAM(p_param, offload_start->ch_mode);
3039 UINT32_TO_STREAM(p_param, offload_start->encoded_audio_bitrate);
3040 UINT16_TO_STREAM(p_param, offload_start->acl_hdl);
3041 UINT16_TO_STREAM(p_param, offload_start->l2c_rcid);
3042 UINT16_TO_STREAM(p_param, offload_start->mtu);
3043 ARRAY_TO_STREAM(p_param, offload_start->codec_info,
3044 (int8_t)sizeof(offload_start->codec_info));
3045 p_scb->offload_started = true;
3046 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP, p_param - param,
3047 param, offload_vendor_callback);
3048 }
3049
bta_av_vendor_offload_stop()3050 void bta_av_vendor_offload_stop() {
3051 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3052 APPL_TRACE_DEBUG("%s", __func__);
3053 param[0] = VS_HCI_A2DP_OFFLOAD_STOP;
3054 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP, 1, param,
3055 offload_vendor_callback);
3056 }
3057 /*******************************************************************************
3058 *
3059 * Function bta_av_offload_req
3060 *
3061 * Description This function is called if application requests offload of
3062 * a2dp audio.
3063 *
3064 * Returns void
3065 *
3066 ******************************************************************************/
bta_av_offload_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3067 void bta_av_offload_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3068 tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
3069
3070 tBT_A2DP_OFFLOAD offload_start;
3071 APPL_TRACE_DEBUG("%s: stream %s, audio channels open %d", __func__,
3072 p_scb->started ? "STARTED" : "STOPPED",
3073 bta_av_cb.audio_open_cnt);
3074 /* Check if stream has already been started. */
3075 /* Support offload if only one audio source stream is open. */
3076 if (p_scb->started != true) {
3077 status = BTA_AV_FAIL_STREAM;
3078 } else {
3079 bta_av_offload_codec_builder(p_scb, &offload_start);
3080 bta_av_vendor_offload_start(p_scb, &offload_start);
3081 return;
3082 }
3083 if (status != BTA_AV_SUCCESS) {
3084 tBTA_AV bta_av_data;
3085 bta_av_data.status = status;
3086 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3087 }
3088 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
3089 else if (bta_av_cb.audio_open_cnt == 1 &&
3090 p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
3091 p_scb->chnl == BTA_AV_CHNL_AUDIO) {
3092 bt_vendor_op_a2dp_offload_t a2dp_offload_start;
3093
3094 if (L2CA_GetConnectionConfig(
3095 p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
3096 &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
3097 APPL_TRACE_DEBUG("%s: l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle
3098 0x%02X",
3099 __func__, a2dp_offload_start.acl_data_size,
3100 p_scb->l2c_cid, a2dp_offload_start.remote_cid,
3101 a2dp_offload_start.lm_handle);
3102
3103 a2dp_offload_start.bta_av_handle = p_scb->hndl;
3104 a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
3105 a2dp_offload_start.stream_mtu = p_scb->stream_mtu;
3106 a2dp_offload_start.local_cid = p_scb->l2c_cid;
3107 a2dp_offload_start.is_flushable = true;
3108 a2dp_offload_start.stream_source =
3109 ((uint32_t)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
3110
3111 memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
3112 sizeof(a2dp_offload_start.codec_info));
3113
3114 if (!vendor_get_interface()->send_command(
3115 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
3116 &a2dp_offload_start)) {
3117 status = BTA_AV_SUCCESS;
3118 p_scb->offload_start_pending = true;
3119 }
3120 }
3121 }
3122 */
3123 }
3124
3125 /*******************************************************************************
3126 *
3127 * Function bta_av_offload_rsp
3128 *
3129 * Description This function is called when the vendor lib responds to
3130 * BT_VND_OP_A2DP_OFFLOAD_START.
3131 *
3132 * Returns void
3133 *
3134 ******************************************************************************/
bta_av_offload_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3135 void bta_av_offload_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3136 tBTA_AV_STATUS status = p_data->api_status_rsp.status;
3137
3138 APPL_TRACE_DEBUG("%s: stream %s status %s", __func__,
3139 p_scb->started ? "STARTED" : "STOPPED",
3140 status ? "FAIL" : "SUCCESS");
3141
3142 /* Check if stream has already been started. */
3143 if (status == BTA_AV_SUCCESS && p_scb->started != true) {
3144 status = BTA_AV_FAIL_STREAM;
3145 }
3146
3147 p_scb->offload_start_pending = false;
3148 tBTA_AV bta_av_data;
3149 bta_av_data.status = status;
3150 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3151 }
3152
bta_av_offload_codec_builder(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * p_a2dp_offload)3153 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
3154 tBT_A2DP_OFFLOAD* p_a2dp_offload) {
3155 A2dpCodecConfig* CodecConfig = bta_av_get_a2dp_current_codec();
3156 btav_a2dp_codec_index_t codec_index =
3157 A2DP_SourceCodecIndex(p_scb->cfg.codec_info);
3158 uint32_t codec_type = 0;
3159 uint16_t mtu = p_scb->stream_mtu;
3160 APPL_TRACE_DEBUG("%s:codec_index = %d", __func__, codec_index);
3161 switch (codec_index) {
3162 case BTAV_A2DP_CODEC_INDEX_SOURCE_SBC:
3163 codec_type = BTA_AV_CODEC_TYPE_SBC;
3164 if (A2DP_GetMaxBitpoolSbc(p_scb->cfg.codec_info) <=
3165 A2DP_SBC_BITPOOL_MIDDLE_QUALITY) {
3166 APPL_TRACE_WARNING("%s: Restricting streaming MTU size for MQ Bitpool",
3167 __func__);
3168 mtu = MAX_2MBPS_AVDTP_MTU;
3169 }
3170 break;
3171 case BTAV_A2DP_CODEC_INDEX_SOURCE_AAC:
3172 codec_type = BTA_AV_CODEC_TYPE_AAC;
3173 break;
3174 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX:
3175 codec_type = BTA_AV_CODEC_TYPE_APTX;
3176 break;
3177 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX_HD:
3178 codec_type = BTA_AV_CODEC_TYPE_APTXHD;
3179 break;
3180 case BTAV_A2DP_CODEC_INDEX_SOURCE_LDAC:
3181 codec_type = BTA_AV_CODEC_TYPE_LDAC;
3182 break;
3183 default:
3184 APPL_TRACE_ERROR("%s: Unknown Codec type ", __func__);
3185 return;
3186 }
3187 if (mtu > MAX_3MBPS_AVDTP_MTU) mtu = MAX_3MBPS_AVDTP_MTU;
3188 p_a2dp_offload->codec_type = codec_type;
3189 p_a2dp_offload->max_latency = 0;
3190 p_a2dp_offload->mtu = mtu;
3191 p_a2dp_offload->acl_hdl =
3192 get_btm_client_interface().lifecycle.BTM_GetHCIConnHandle(
3193 p_scb->PeerAddress(), BT_TRANSPORT_BR_EDR);
3194 btav_a2dp_scmst_info_t scmst_info =
3195 p_scb->p_cos->get_scmst_info(p_scb->PeerAddress());
3196 p_a2dp_offload->scms_t_enable[0] = scmst_info.enable_status;
3197 p_a2dp_offload->scms_t_enable[1] = scmst_info.cp_header;
3198 APPL_TRACE_DEBUG(
3199 "%s: SCMS-T_enable status: %d, "
3200 "SCMS-T header (if it's enabled): 0x%02x",
3201 __func__, scmst_info.enable_status, scmst_info.cp_header);
3202
3203 switch (A2DP_GetTrackSampleRate(p_scb->cfg.codec_info)) {
3204 case 44100:
3205 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_44100;
3206 break;
3207 case 48000:
3208 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_48000;
3209 break;
3210 case 88200:
3211 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_88200;
3212 break;
3213 case 96000:
3214 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_96000;
3215 break;
3216 }
3217 if (L2CA_GetRemoteCid(p_scb->l2c_cid, &p_a2dp_offload->l2c_rcid) == false) {
3218 APPL_TRACE_ERROR("%s: Failed to fetch l2c rcid", __func__);
3219 return;
3220 }
3221 switch (CodecConfig->getAudioBitsPerSample()) {
3222 case 16:
3223 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_16;
3224 break;
3225 case 24:
3226 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_24;
3227 break;
3228 case 32:
3229 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_32;
3230 break;
3231 }
3232 p_a2dp_offload->ch_mode = A2DP_GetTrackChannelCount(p_scb->cfg.codec_info);
3233 p_a2dp_offload->encoded_audio_bitrate = CodecConfig->getTrackBitRate();
3234 if (!CodecConfig->getCodecSpecificConfig(p_a2dp_offload)) {
3235 APPL_TRACE_ERROR("%s: not a valid codec info", __func__);
3236 }
3237 }
3238