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
31 #include <cstdint>
32 #include <cstring>
33 #include <vector>
34
35 #include "bt_target.h" // Must be first to define build configuration
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/allocator.h"
46 #include "osi/include/log.h"
47 #include "osi/include/osi.h"
48 #include "osi/include/properties.h"
49 #include "stack/include/a2dp_sbc.h"
50 #include "stack/include/acl_api.h"
51 #include "stack/include/bt_hdr.h"
52 #include "stack/include/btm_api.h"
53 #include "stack/include/btm_client_interface.h"
54 #include "stack/include/l2c_api.h"
55 #include "types/hci_role.h"
56 #include "types/raw_address.h"
57
58 namespace {
59
60 constexpr char kBtmLogTag[] = "A2DP";
61
62 }
63
64 /*****************************************************************************
65 * Constants
66 ****************************************************************************/
67
68 /* the delay time in milliseconds to start service discovery on AVRCP */
69 #ifndef BTA_AV_RC_DISC_TIME_VAL
70 #define BTA_AV_RC_DISC_TIME_VAL 3500
71 #endif
72
73 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed
74 * to be sent */
75 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
76 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
77 #endif
78
79 /* number to retry on reconfigure failure - some headsets requirs this number to
80 * be more than 1 */
81 #ifndef BTA_AV_RECONFIG_RETRY
82 #define BTA_AV_RECONFIG_RETRY 6
83 #endif
84
85 /* ACL quota we are letting FW use for A2DP Offload Tx. */
86 #define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA 4
87
88 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
89 tBT_A2DP_OFFLOAD* p_a2dp_offload);
90
91 /* state machine states */
92 enum {
93 BTA_AV_INIT_SST,
94 BTA_AV_INCOMING_SST,
95 BTA_AV_OPENING_SST,
96 BTA_AV_OPEN_SST,
97 BTA_AV_RCFG_SST,
98 BTA_AV_CLOSING_SST
99 };
100
101 /* the call out functions for audio stream */
102 const tBTA_AV_CO_FUNCTS bta_av_a2dp_cos = {bta_av_co_audio_init,
103 bta_av_co_audio_disc_res,
104 bta_av_co_audio_getconfig,
105 bta_av_co_audio_setconfig,
106 bta_av_co_audio_open,
107 bta_av_co_audio_close,
108 bta_av_co_audio_start,
109 bta_av_co_audio_stop,
110 bta_av_co_audio_source_data_path,
111 bta_av_co_audio_delay,
112 bta_av_co_audio_update_mtu,
113 bta_av_co_get_scmst_info};
114
115 /* these tables translate AVDT events to SSM events */
116 static const uint16_t bta_av_stream_evt_ok[] = {
117 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
118 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
119 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
120 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
121 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
122 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
123 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
124 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
125 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
126 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
127 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
128 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
129 0, /* AVDT_RECONFIG_IND_EVT */
130 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
131 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
132 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
133 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
134 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
135 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
136 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
137 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
138 BTA_AV_AVDT_DELAY_RPT_CFM_EVT, /* AVDT_DELAY_REPORT_CFM_EVT */
139 };
140
141 static const uint16_t bta_av_stream_evt_fail[] = {
142 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
143 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
144 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
145 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
146 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
147 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
148 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
149 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
150 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
151 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
152 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
153 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
154 0, /* AVDT_RECONFIG_IND_EVT */
155 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
156 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
157 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
158 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
159 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
160 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
161 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
162 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
163 BTA_AV_AVDT_DELAY_RPT_CFM_EVT, /* AVDT_DELAY_REPORT_CFM_EVT */
164 };
165
166 /***********************************************
167 *
168 * Function bta_get_scb_handle
169 *
170 * Description gives the registered AVDT handle.by checking with sep_type.
171 *
172 *
173 * Returns void
174 **********************************************/
bta_av_get_scb_handle(tBTA_AV_SCB * p_scb,uint8_t local_sep)175 static uint8_t bta_av_get_scb_handle(tBTA_AV_SCB* p_scb, uint8_t local_sep) {
176 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
177 if ((p_scb->seps[i].tsep == local_sep) &&
178 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
179 p_scb->cfg.codec_info)) {
180 return (p_scb->seps[i].av_handle);
181 }
182 }
183 APPL_TRACE_DEBUG("%s: local sep_type %d not found", __func__, local_sep)
184 return 0; /* return invalid handle */
185 }
186
187 /***********************************************
188 *
189 * Function bta_av_get_scb_sep_type
190 *
191 * Description gives the sep type by cross-checking with AVDT handle
192 *
193 *
194 * Returns void
195 **********************************************/
bta_av_get_scb_sep_type(tBTA_AV_SCB * p_scb,uint8_t tavdt_handle)196 static uint8_t bta_av_get_scb_sep_type(tBTA_AV_SCB* p_scb,
197 uint8_t tavdt_handle) {
198 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
199 if (p_scb->seps[i].av_handle == tavdt_handle) return (p_scb->seps[i].tsep);
200 }
201 APPL_TRACE_DEBUG("%s: avdt_handle %d not found", __func__, tavdt_handle)
202 return AVDT_TSEP_INVALID;
203 }
204
205 /*******************************************************************************
206 *
207 * Function bta_av_save_addr
208 *
209 * Description copy the bd_addr and maybe reset the supported flags
210 *
211 *
212 * Returns void
213 *
214 ******************************************************************************/
bta_av_save_addr(tBTA_AV_SCB * p_scb,const RawAddress & bd_addr)215 static void bta_av_save_addr(tBTA_AV_SCB* p_scb, const RawAddress& bd_addr) {
216 APPL_TRACE_DEBUG("%s: peer=%s recfg_sup:%d, suspend_sup:%d", __func__,
217 bd_addr.ToString().c_str(), p_scb->recfg_sup,
218 p_scb->suspend_sup);
219 if (p_scb->PeerAddress() != bd_addr) {
220 LOG_INFO("%s: reset flags old_addr=%s new_addr=%s", __func__,
221 p_scb->PeerAddress().ToString().c_str(),
222 bd_addr.ToString().c_str());
223 /* a new addr, reset the supported flags */
224 p_scb->recfg_sup = true;
225 p_scb->suspend_sup = true;
226 }
227
228 /* do this copy anyway, just in case the first addr matches
229 * the control block one by accident */
230 p_scb->OnConnected(bd_addr);
231 }
232
233 /*******************************************************************************
234 *
235 * Function notify_start_failed
236 *
237 * Description notify up-layer AV start failed
238 *
239 *
240 * Returns void
241 *
242 ******************************************************************************/
notify_start_failed(tBTA_AV_SCB * p_scb)243 static void notify_start_failed(tBTA_AV_SCB* p_scb) {
244 LOG_ERROR("%s: peer %s role:0x%x bta_channel:%d bta_handle:0x%x", __func__,
245 p_scb->PeerAddress().ToString().c_str(), p_scb->role, p_scb->chnl,
246 p_scb->hndl);
247 tBTA_AV_START start;
248 /* if start failed, clear role */
249 p_scb->role &= ~BTA_AV_ROLE_START_INT;
250 start.chnl = p_scb->chnl;
251 start.status = BTA_AV_FAIL;
252 start.initiator = true;
253 start.hndl = p_scb->hndl;
254
255 tBTA_AV bta_av_data;
256 bta_av_data.start = start;
257 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
258 }
259
260 /*******************************************************************************
261 *
262 * Function bta_av_st_rc_timer
263 *
264 * Description start the AVRC timer if no RC connection & CT is supported &
265 * RC is used or
266 * as ACP (we do not really know if we want AVRC)
267 *
268 * Returns void
269 *
270 ******************************************************************************/
bta_av_st_rc_timer(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)271 void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
272 APPL_TRACE_DEBUG("%s: rc_handle:%d, use_rc: %d", __func__, p_scb->rc_handle,
273 p_scb->use_rc);
274 /* for outgoing RC connection as INT/CT */
275 if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
276 /* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
277 (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP))) {
278 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
279 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
280 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
281 } else {
282 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
283 }
284 }
285 }
286
287 /*******************************************************************************
288 *
289 * Function bta_av_next_getcap
290 *
291 * Description The function gets the capabilities of the next available
292 * stream found in the discovery results.
293 *
294 * Returns true if we sent request to AVDT, false otherwise.
295 *
296 ******************************************************************************/
bta_av_next_getcap(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)297 static bool bta_av_next_getcap(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
298 int i;
299 bool sent_cmd = false;
300 uint16_t uuid_int = p_scb->uuid_int;
301 uint8_t sep_requested = 0;
302
303 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
304 sep_requested = AVDT_TSEP_SNK;
305 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
306 sep_requested = AVDT_TSEP_SRC;
307
308 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) {
309 /* steam not in use, is a sink, and is the right media type (audio/video) */
310 if ((!p_scb->sep_info[i].in_use) &&
311 (p_scb->sep_info[i].tsep == sep_requested) &&
312 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
313 p_scb->sep_info_idx = i;
314
315 /* we got a stream; get its capabilities */
316 bool get_all_cap = (p_scb->AvdtpVersion() >= AVDT_VERSION_1_3) &&
317 (A2DP_GetAvdtpVersion() >= AVDT_VERSION_1_3);
318 AVDT_GetCapReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info[i].seid,
319 &p_scb->peer_cap, &bta_av_proc_stream_evt, get_all_cap);
320 sent_cmd = true;
321 break;
322 }
323 }
324
325 /* if no streams available then stream open fails */
326 if (!sent_cmd) {
327 APPL_TRACE_ERROR("%s: BTA_AV_STR_GETCAP_FAIL_EVT: peer_addr=%s", __func__,
328 p_scb->PeerAddress().ToString().c_str());
329 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
330 }
331
332 return sent_cmd;
333 }
334
335 /*******************************************************************************
336 *
337 * Function bta_av_proc_stream_evt
338 *
339 * Description Utility function to compose stream events.
340 *
341 * Returns void
342 *
343 ******************************************************************************/
bta_av_proc_stream_evt(uint8_t handle,const RawAddress & bd_addr,uint8_t event,tAVDT_CTRL * p_data,uint8_t scb_index)344 void bta_av_proc_stream_evt(uint8_t handle, const RawAddress& bd_addr,
345 uint8_t event, tAVDT_CTRL* p_data,
346 uint8_t scb_index) {
347 CHECK_LT(scb_index, BTA_AV_NUM_STRS);
348 tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[scb_index];
349 uint16_t sec_len = 0;
350
351 APPL_TRACE_EVENT(
352 "%s: peer_address: %s avdt_handle: %d event=0x%x scb_index=%d p_scb=%p",
353 __func__, bd_addr.ToString().c_str(), handle, event, scb_index, p_scb);
354
355 if (p_data) {
356 if (event == AVDT_SECURITY_IND_EVT) {
357 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN)
358 ? p_data->security_ind.len
359 : BTA_AV_SECURITY_MAX_LEN;
360 } else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) {
361 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN)
362 ? p_data->security_cfm.len
363 : BTA_AV_SECURITY_MAX_LEN;
364 }
365 }
366
367 if (p_scb) {
368 tBTA_AV_STR_MSG* p_msg =
369 (tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
370
371 /* copy event data, bd addr, and handle to event message buffer */
372 p_msg->hdr.offset = 0;
373
374 p_msg->bd_addr = bd_addr;
375 p_msg->scb_index = scb_index;
376 APPL_TRACE_EVENT("%s: stream event bd_addr: %s scb_index: %u", __func__,
377 p_msg->bd_addr.ToString().c_str(), scb_index);
378
379 if (p_data != NULL) {
380 memcpy(&p_msg->msg, p_data, sizeof(tAVDT_CTRL));
381 /* copy config params to event message buffer */
382 switch (event) {
383 case AVDT_CONFIG_IND_EVT:
384 p_msg->cfg = *p_data->config_ind.p_cfg;
385 break;
386
387 case AVDT_SECURITY_IND_EVT:
388 p_msg->msg.security_ind.p_data = (uint8_t*)(p_msg + 1);
389 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data,
390 sec_len);
391 break;
392
393 case AVDT_SECURITY_CFM_EVT:
394 p_msg->msg.security_cfm.p_data = (uint8_t*)(p_msg + 1);
395 if (p_data->hdr.err_code == 0) {
396 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data,
397 sec_len);
398 }
399 break;
400
401 case AVDT_SUSPEND_IND_EVT:
402 p_msg->msg.hdr.err_code = 0;
403 break;
404
405 case AVDT_CONNECT_IND_EVT:
406 p_scb->recfg_sup = true;
407 p_scb->suspend_sup = true;
408 break;
409
410 default:
411 break;
412 }
413 } else {
414 p_msg->msg.hdr.err_code = 0;
415 }
416
417 /* look up application event */
418 if ((p_data == NULL) || (p_data->hdr.err_code == 0)) {
419 p_msg->hdr.event = bta_av_stream_evt_ok[event];
420 } else {
421 p_msg->hdr.event = bta_av_stream_evt_fail[event];
422 }
423
424 p_msg->initiator = false;
425 if (event == AVDT_SUSPEND_CFM_EVT) p_msg->initiator = true;
426
427 APPL_TRACE_VERBOSE("%s: bta_handle:0x%x avdt_handle:%d", __func__,
428 p_scb->hndl, handle);
429 p_msg->hdr.layer_specific = p_scb->hndl;
430 p_msg->handle = handle;
431 p_msg->avdt_event = event;
432 bta_sys_sendmsg(p_msg);
433 }
434
435 if (p_data) {
436 bta_av_conn_cback(handle, bd_addr, event, p_data, scb_index);
437 } else {
438 APPL_TRACE_ERROR("%s: p_data is null", __func__);
439 }
440 }
441
442 /*******************************************************************************
443 *
444 * Function bta_av_sink_data_cback
445 *
446 * Description This is the AVDTP callback function for sink stream events.
447 *
448 * Returns void
449 *
450 ******************************************************************************/
bta_av_sink_data_cback(uint8_t handle,BT_HDR * p_pkt,uint32_t time_stamp,uint8_t m_pt)451 void bta_av_sink_data_cback(uint8_t handle, BT_HDR* p_pkt, uint32_t time_stamp,
452 uint8_t m_pt) {
453 int index = 0;
454 tBTA_AV_SCB* p_scb;
455 APPL_TRACE_DEBUG(
456 "%s: avdt_handle: %d pkt_len=0x%x offset = 0x%x "
457 "number of frames 0x%x sequence number 0x%x",
458 __func__, handle, p_pkt->len, p_pkt->offset,
459 *((uint8_t*)(p_pkt + 1) + p_pkt->offset), p_pkt->layer_specific);
460 /* Get SCB and correct sep type */
461 for (index = 0; index < BTA_AV_NUM_STRS; index++) {
462 p_scb = bta_av_cb.p_scb[index];
463 if ((p_scb->avdt_handle == handle) &&
464 (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)) {
465 break;
466 }
467 }
468 if (index == BTA_AV_NUM_STRS) {
469 /* cannot find correct handler */
470 osi_free(p_pkt);
471 return;
472 }
473 p_pkt->event = BTA_AV_SINK_MEDIA_DATA_EVT;
474 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
475 p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
476 /* Free the buffer: a copy of the packet has been delivered */
477 osi_free(p_pkt);
478 }
479
480 /*******************************************************************************
481 *
482 * Function bta_av_a2dp_sdp_cback
483 *
484 * Description A2DP service discovery callback.
485 *
486 * Returns void
487 *
488 ******************************************************************************/
bta_av_a2dp_sdp_cback(bool found,tA2DP_Service * p_service,const RawAddress & peer_address)489 static void bta_av_a2dp_sdp_cback(bool found, tA2DP_Service* p_service,
490 const RawAddress& peer_address) {
491 APPL_TRACE_DEBUG("%s: peer %s : found=%s", __func__,
492 peer_address.ToString().c_str(), (found) ? "true" : "false");
493
494 tBTA_AV_SCB* p_scb = NULL;
495 if (peer_address != RawAddress::kEmpty) {
496 p_scb = bta_av_addr_to_scb(peer_address);
497 }
498 if (p_scb == NULL) {
499 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
500 }
501 if (p_scb == NULL) {
502 APPL_TRACE_ERROR("%s: no scb found for SDP handle(0x%x)", __func__,
503 bta_av_cb.handle);
504 return;
505 }
506 if (bta_av_cb.handle != p_scb->hndl) {
507 APPL_TRACE_WARNING("%s: SDP bta_handle expected=0x%x processing=0x%x",
508 __func__, bta_av_cb.handle, p_scb->hndl);
509 }
510
511 if (!found) {
512 APPL_TRACE_ERROR("%s: peer %s A2DP service discovery failed", __func__,
513 p_scb->PeerAddress().ToString().c_str());
514 }
515 APPL_TRACE_DEBUG("%s: peer %s found=%s", __func__,
516 p_scb->PeerAddress().ToString().c_str(),
517 (found) ? "true" : "false");
518
519 tBTA_AV_SDP_RES* p_msg =
520 (tBTA_AV_SDP_RES*)osi_malloc(sizeof(tBTA_AV_SDP_RES));
521 if (found) {
522 p_msg->hdr.event = BTA_AV_SDP_DISC_OK_EVT;
523 } else {
524 p_msg->hdr.event = BTA_AV_SDP_DISC_FAIL_EVT;
525 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
526 p_scb->PeerAddress().ToString().c_str());
527 }
528 if (found && (p_service != NULL)) {
529 p_scb->SetAvdtpVersion(p_service->avdt_version);
530 if (p_service->avdt_version != 0) {
531 if (btif_config_set_bin(p_scb->PeerAddress().ToString(),
532 AVDTP_VERSION_CONFIG_KEY,
533 (const uint8_t*)&p_service->avdt_version,
534 sizeof(p_service->avdt_version))) {
535 btif_config_save();
536 } else {
537 APPL_TRACE_WARNING("%s: Failed to store peer AVDTP version for %s",
538 __func__, p_scb->PeerAddress().ToString().c_str());
539 }
540 }
541 } else {
542 p_scb->SetAvdtpVersion(0);
543 }
544 p_msg->hdr.layer_specific = p_scb->hndl;
545
546 bta_sys_sendmsg(p_msg);
547 }
548
549 /*******************************************************************************
550 *
551 * Function bta_av_adjust_seps_idx
552 *
553 * Description adjust the sep_idx
554 *
555 * Returns
556 *
557 ******************************************************************************/
bta_av_adjust_seps_idx(tBTA_AV_SCB * p_scb,uint8_t avdt_handle)558 static void bta_av_adjust_seps_idx(tBTA_AV_SCB* p_scb, uint8_t avdt_handle) {
559 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
560 A2DP_CodecName(p_scb->cfg.codec_info));
561 for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
562 APPL_TRACE_DEBUG("%s: avdt_handle: %d codec: %s", __func__,
563 p_scb->seps[i].av_handle,
564 A2DP_CodecName(p_scb->seps[i].codec_info));
565 if (p_scb->seps[i].av_handle && (p_scb->seps[i].av_handle == avdt_handle) &&
566 A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
567 p_scb->cfg.codec_info)) {
568 p_scb->sep_idx = i;
569 p_scb->avdt_handle = p_scb->seps[i].av_handle;
570 break;
571 }
572 }
573 }
574
575 /*******************************************************************************
576 *
577 * Function bta_av_switch_role
578 *
579 * Description Switch role was not started and a timer was started.
580 * another attempt to switch role now - still opening.
581 *
582 * Returns void
583 *
584 ******************************************************************************/
bta_av_switch_role(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)585 void bta_av_switch_role(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
586 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
587 tBTA_AV_API_OPEN* p_buf = &p_scb->q_info.open;
588
589 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x", __func__,
590 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
591 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
592 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
593
594 /* clear the masks set when the timer is started */
595 p_scb->wait &=
596 ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START);
597
598 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
599 if (bta_av_switch_if_needed(p_scb) ||
600 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
601 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
602 } else {
603 /* this should not happen in theory. Just in case...
604 * continue to do_disc_a2dp */
605 switch_res = BTA_AV_RS_DONE;
606 }
607 } else {
608 /* report failure on OPEN */
609 APPL_TRACE_ERROR("%s: peer %s role switch failed (wait=0x%x)", __func__,
610 p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
611 switch_res = BTA_AV_RS_FAIL;
612 }
613
614 if (switch_res != BTA_AV_RS_NONE) {
615 if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) {
616 bta_av_cb.rs_idx = 0;
617 }
618 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
619 p_scb->q_tag = 0;
620 p_buf->switch_res = switch_res;
621 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)p_buf);
622 }
623 }
624
625 /*******************************************************************************
626 *
627 * Function bta_av_role_res
628 *
629 * Description Handle the role changed event
630 *
631 *
632 * Returns void
633 *
634 ******************************************************************************/
bta_av_role_res(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)635 void bta_av_role_res(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
636 bool initiator = false;
637
638 APPL_TRACE_DEBUG("%s: peer %s q_tag:%d, wait:0x%x, role:0x%x", __func__,
639 p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
640 p_scb->wait, p_scb->role);
641 if (p_scb->role & BTA_AV_ROLE_START_INT) initiator = true;
642
643 if (p_scb->q_tag == BTA_AV_Q_TAG_START) {
644 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) {
645 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
646 if (p_data->role_res.hci_status != HCI_SUCCESS) {
647 p_scb->role &= ~BTA_AV_ROLE_START_INT;
648 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
649 /* start failed because of role switch. */
650 tBTA_AV_START start;
651 start.chnl = p_scb->chnl;
652 start.status = BTA_AV_FAIL_ROLE;
653 start.hndl = p_scb->hndl;
654 start.initiator = initiator;
655 tBTA_AV bta_av_data;
656 bta_av_data.start = start;
657 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
658 } else {
659 bta_av_start_ok(p_scb, p_data);
660 }
661 } else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
662 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
663 } else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
664 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) {
665 p_scb->role &= ~BTA_AV_ROLE_START_INT;
666 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
667
668 if (p_data->role_res.hci_status != HCI_SUCCESS) {
669 /* Open failed because of role switch. */
670 tBTA_AV_OPEN av_open;
671 av_open.bd_addr = p_scb->PeerAddress();
672 av_open.chnl = p_scb->chnl;
673 av_open.hndl = p_scb->hndl;
674 av_open.status = BTA_AV_FAIL_ROLE;
675 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
676 av_open.sep = AVDT_TSEP_SNK;
677 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
678 av_open.sep = AVDT_TSEP_SRC;
679 }
680 tBTA_AV bta_av_data;
681 bta_av_data.open = av_open;
682 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
683 } else {
684 /* Continue av open process */
685 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
686 bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open));
687 }
688 } else {
689 APPL_TRACE_WARNING(
690 "%s: peer %s unexpected role switch event: q_tag = %d wait = 0x%x",
691 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
692 p_scb->wait);
693 }
694 }
695
696 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x, role:0x%x", __func__,
697 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
698 p_scb->role);
699 }
700
701 /*******************************************************************************
702 *
703 * Function bta_av_delay_co
704 *
705 * Description Call the delay call-out function to report the delay report
706 * from SNK
707 *
708 * Returns void
709 *
710 ******************************************************************************/
bta_av_delay_co(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)711 void bta_av_delay_co(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
712 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x delay:%d", __func__,
713 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
714 p_data->str_msg.msg.delay_rpt_cmd.delay);
715 p_scb->p_cos->delay(p_scb->hndl, p_scb->PeerAddress(),
716 p_data->str_msg.msg.delay_rpt_cmd.delay);
717 }
718
719 /*******************************************************************************
720 *
721 * Function bta_av_do_disc_a2dp
722 *
723 * Description Do service discovery for A2DP.
724 *
725 * Returns void
726 *
727 ******************************************************************************/
bta_av_do_disc_a2dp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)728 void bta_av_do_disc_a2dp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
729 bool ok_continue = false;
730 tA2DP_SDP_DB_PARAMS db_params;
731 uint16_t attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
732 ATTR_ID_PROTOCOL_DESC_LIST,
733 ATTR_ID_BT_PROFILE_DESC_LIST};
734 uint16_t sdp_uuid = 0; /* UUID for which SDP has to be done */
735
736 APPL_TRACE_DEBUG("%s: peer_addr: %s use_rc: %d switch_res:%d, oc:%d",
737 __func__, p_data->api_open.bd_addr.ToString().c_str(),
738 p_data->api_open.use_rc, p_data->api_open.switch_res,
739 bta_av_cb.audio_open_cnt);
740
741 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
742
743 switch (p_data->api_open.switch_res) {
744 case BTA_AV_RS_NONE:
745 if (bta_av_switch_if_needed(p_scb) ||
746 !bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
747 /* waiting for role switch result. save the api to control block */
748 memcpy(&p_scb->q_info.open, &p_data->api_open,
749 sizeof(tBTA_AV_API_OPEN));
750 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
751 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
752 } else {
753 ok_continue = true;
754 }
755 break;
756
757 case BTA_AV_RS_FAIL:
758 /* report a new failure event */
759 p_scb->open_status = BTA_AV_FAIL_ROLE;
760 APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
761 p_scb->PeerAddress().ToString().c_str());
762 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
763 break;
764
765 case BTA_AV_RS_OK:
766 p_data = (tBTA_AV_DATA*)&p_scb->q_info.open;
767 /* continue to open if link role is ok */
768 if (bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
769 ok_continue = true;
770 } else {
771 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
772 }
773 break;
774
775 case BTA_AV_RS_DONE:
776 ok_continue = true;
777 break;
778 }
779
780 APPL_TRACE_DEBUG("%s: ok_continue: %d wait:0x%x, q_tag: %d", __func__,
781 ok_continue, p_scb->wait, p_scb->q_tag);
782 if (!ok_continue) return;
783
784 /* clear the role switch bits */
785 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
786
787 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) {
788 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
789 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
790 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
791 }
792
793 /* store peer addr other parameters */
794 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
795 p_scb->use_rc = p_data->api_open.use_rc;
796
797 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
798
799 /* set up parameters */
800 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
801 db_params.num_attr = 3;
802 db_params.p_attrs = attr_list;
803 p_scb->uuid_int = p_data->api_open.uuid;
804 p_scb->sdp_discovery_started = true;
805 if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
806 sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
807 else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
808 sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
809
810 APPL_TRACE_DEBUG(
811 "%s: Initiate SDP discovery for peer %s : uuid_int=0x%x "
812 "sdp_uuid=0x%x",
813 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
814 sdp_uuid);
815 tA2DP_STATUS find_service_status = A2DP_FindService(
816 sdp_uuid, p_scb->PeerAddress(), &db_params, bta_av_a2dp_sdp_cback);
817 if (find_service_status != A2DP_SUCCESS) {
818 APPL_TRACE_ERROR(
819 "%s: A2DP_FindService() failed for peer %s uuid_int=0x%x "
820 "sdp_uuid=0x%x : status=%d",
821 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
822 sdp_uuid, find_service_status);
823 bta_av_a2dp_sdp_cback(false, nullptr, p_scb->PeerAddress());
824 } else {
825 /* only one A2DP find service is active at a time */
826 bta_av_cb.handle = p_scb->hndl;
827 }
828 }
829
830 /*******************************************************************************
831 *
832 * Function bta_av_cleanup
833 *
834 * Description cleanup AV stream control block.
835 *
836 * Returns void
837 *
838 ******************************************************************************/
bta_av_cleanup(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)839 void bta_av_cleanup(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
840 tBTA_AV_CONN_CHG msg;
841 uint8_t role = BTA_AV_ROLE_AD_INT;
842
843 LOG_INFO("%s peer %s", __func__, p_scb->PeerAddress().ToString().c_str());
844
845 /* free any buffers */
846 p_scb->sdp_discovery_started = false;
847 p_scb->SetAvdtpVersion(0);
848
849 /* initialize some control block variables */
850 p_scb->open_status = BTA_AV_SUCCESS;
851
852 /* if de-registering shut everything down */
853 msg.hdr.layer_specific = p_scb->hndl;
854 p_scb->started = false;
855 p_scb->use_rtp_header_marker_bit = false;
856 p_scb->cong = false;
857 p_scb->role = role;
858 p_scb->cur_psc_mask = 0;
859 p_scb->wait = 0;
860 p_scb->num_disc_snks = 0;
861 p_scb->coll_mask = 0;
862 alarm_cancel(p_scb->avrc_ct_timer);
863 alarm_cancel(p_scb->link_signalling_timer);
864 alarm_cancel(p_scb->accept_signalling_timer);
865
866 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
867 vendor_get_interface()->send_command(
868 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
869 if (p_scb->offload_start_pending) {
870 tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
871 tBTA_AV bta_av_data;
872 bta_av_data.status = status;
873 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
874 }
875 */
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 // Don't use AVDTP SUSPEND for restrict listed devices
1172 btif_storage_get_stored_remote_name(p_scb->PeerAddress(), remote_name);
1173 if (interop_match_name(INTEROP_DISABLE_AVDTP_SUSPEND, remote_name) ||
1174 interop_match_addr(INTEROP_DISABLE_AVDTP_SUSPEND,
1175 &p_scb->PeerAddress())) {
1176 LOG_INFO("%s: disable AVDTP SUSPEND: interop matched name %s address %s",
1177 __func__, remote_name, p_scb->PeerAddress().ToString().c_str());
1178 p_scb->suspend_sup = false;
1179 }
1180
1181 p_scb->stream_mtu =
1182 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1183 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__, p_scb->l2c_cid,
1184 p_scb->stream_mtu);
1185
1186 /* Set the media channel as high priority */
1187 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_HIGH);
1188 L2CA_SetChnlFlushability(p_scb->l2c_cid, true);
1189
1190 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
1191 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1192
1193 p_scb->l2c_bufs = 0;
1194 p_scb->p_cos->open(p_scb->hndl, p_scb->PeerAddress(), p_scb->stream_mtu);
1195
1196 {
1197 /* TODO check if other audio channel is open.
1198 * If yes, check if reconfig is needed
1199 * Rigt now we do not do this kind of checking.
1200 * BTA-AV is INT for 2nd audio connection.
1201 * The application needs to make sure the current codec_info is proper.
1202 * If one audio connection is open and another SNK attempts to connect to
1203 * AV,
1204 * the connection will be rejected.
1205 */
1206 /* check if other audio channel is started. If yes, start */
1207 tBTA_AV_OPEN open;
1208 open.bd_addr = p_scb->PeerAddress();
1209 open.chnl = p_scb->chnl;
1210 open.hndl = p_scb->hndl;
1211 open.status = BTA_AV_SUCCESS;
1212 open.edr = 0;
1213 p = BTM_ReadRemoteFeatures(p_scb->PeerAddress());
1214 if (p != NULL) {
1215 if (HCI_EDR_ACL_2MPS_SUPPORTED(p)) open.edr |= BTA_AV_EDR_2MBPS;
1216 if (HCI_EDR_ACL_3MPS_SUPPORTED(p)) {
1217 if (!interop_match_addr(INTEROP_2MBPS_LINK_ONLY,
1218 &p_scb->PeerAddress())) {
1219 open.edr |= BTA_AV_EDR_3MBPS;
1220 }
1221 }
1222 }
1223 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr, p_scb->hdi);
1224 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1225 open.starting = false;
1226 open.sep = AVDT_TSEP_SNK;
1227 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1228 open.starting = bta_av_chk_start(p_scb);
1229 open.sep = AVDT_TSEP_SRC;
1230 }
1231
1232 tBTA_AV bta_av_data;
1233 bta_av_data.open = open;
1234 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1235 if (open.starting) {
1236 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1237 }
1238 }
1239
1240 // This code is used to pass PTS TC for AVDTP ABORT
1241 char value[PROPERTY_VALUE_MAX] = {0};
1242 if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false")) &&
1243 (!strcmp(value, "true"))) {
1244 APPL_TRACE_ERROR("%s: Calling AVDT_AbortReq", __func__);
1245 AVDT_AbortReq(p_scb->avdt_handle);
1246 }
1247 }
1248
1249 /*******************************************************************************
1250 *
1251 * Function bta_av_security_ind
1252 *
1253 * Description Handle an AVDTP security indication.
1254 *
1255 * Returns void
1256 *
1257 ******************************************************************************/
bta_av_security_ind(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1258 void bta_av_security_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1259 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1260
1261 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1262 tBTA_AV_PROTECT_REQ protect_req;
1263 protect_req.chnl = p_scb->chnl;
1264 protect_req.hndl = p_scb->hndl;
1265 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1266 protect_req.len = p_data->str_msg.msg.security_ind.len;
1267
1268 tBTA_AV bta_av_data;
1269 bta_av_data.protect_req = protect_req;
1270 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, &bta_av_data);
1271 }
1272 /* app doesn't support security indication; respond with failure */
1273 else {
1274 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
1275 0);
1276 }
1277 }
1278
1279 /*******************************************************************************
1280 *
1281 * Function bta_av_security_cfm
1282 *
1283 * Description Handle an AVDTP security confirm.
1284 *
1285 * Returns void
1286 *
1287 ******************************************************************************/
bta_av_security_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1288 void bta_av_security_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1289 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
1290 tBTA_AV_PROTECT_RSP protect_rsp;
1291 protect_rsp.chnl = p_scb->chnl;
1292 protect_rsp.hndl = p_scb->hndl;
1293 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1294 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1295 protect_rsp.err_code = p_data->str_msg.msg.hdr.err_code;
1296
1297 tBTA_AV bta_av_data;
1298 bta_av_data.protect_rsp = protect_rsp;
1299 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, &bta_av_data);
1300 }
1301 }
1302
1303 /*******************************************************************************
1304 *
1305 * Function bta_av_do_close
1306 *
1307 * Description Close stream.
1308 *
1309 * Returns void
1310 *
1311 ******************************************************************************/
bta_av_do_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1312 void bta_av_do_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1313 APPL_TRACE_DEBUG("%s: p_scb->co_started=%d", __func__, p_scb->co_started);
1314
1315 /* stop stream if started */
1316 if (p_scb->co_started) {
1317 bta_av_str_stopped(p_scb, NULL);
1318 }
1319 alarm_cancel(p_scb->link_signalling_timer);
1320
1321 /* close stream */
1322 p_scb->started = false;
1323 p_scb->use_rtp_header_marker_bit = false;
1324
1325 /* drop the buffers queued in L2CAP */
1326 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1327
1328 AVDT_CloseReq(p_scb->avdt_handle);
1329 /* just in case that the link is congested, link is flow controled by peer or
1330 * for whatever reason the the close request can not be sent in time.
1331 * when this timer expires, AVDT_DisconnectReq will be called to disconnect
1332 * the link
1333 */
1334 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
1335 BTA_AV_API_CLOSE_EVT, p_scb->hndl);
1336 }
1337
1338 /*******************************************************************************
1339 *
1340 * Function bta_av_connect_req
1341 *
1342 * Description Connect AVDTP connection.
1343 *
1344 * Returns void
1345 *
1346 ******************************************************************************/
bta_av_connect_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1347 void bta_av_connect_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1348 APPL_TRACE_DEBUG("%s: peer %s coll_mask=0x%02x", __func__,
1349 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
1350 p_scb->sdp_discovery_started = false;
1351 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
1352 /* SNK initiated L2C connection while SRC was doing SDP. */
1353 /* Wait until timeout to check if SNK starts signalling. */
1354 APPL_TRACE_WARNING("%s: coll_mask=0x%02x incoming timer is up", __func__,
1355 p_scb->coll_mask);
1356 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
1357 APPL_TRACE_EVENT("%s: updated coll_mask=0x%02x", __func__,
1358 p_scb->coll_mask);
1359 return;
1360 }
1361
1362 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
1363 }
1364
1365 /*******************************************************************************
1366 *
1367 * Function bta_av_sdp_failed
1368 *
1369 * Description Service discovery failed.
1370 *
1371 * Returns void
1372 *
1373 ******************************************************************************/
bta_av_sdp_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1374 void bta_av_sdp_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1375 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1376 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1377
1378 if (p_scb->open_status == BTA_AV_SUCCESS) {
1379 p_scb->open_status = BTA_AV_FAIL_SDP;
1380 }
1381
1382 p_scb->sdp_discovery_started = false;
1383 bta_av_str_closed(p_scb, p_data);
1384 }
1385
1386 /*******************************************************************************
1387 *
1388 * Function bta_av_disc_results
1389 *
1390 * Description Handle the AVDTP discover results. Search through the
1391 * results and find the first available stream, and get
1392 * its capabilities.
1393 *
1394 * Returns void
1395 *
1396 ******************************************************************************/
bta_av_disc_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1397 void bta_av_disc_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1398 uint8_t num_snks = 0, num_srcs = 0, i;
1399 /* our uuid in case we initiate connection */
1400 uint16_t uuid_int = p_scb->uuid_int;
1401
1402 APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x initiator UUID 0x%x", __func__,
1403 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1404 uuid_int);
1405
1406 /* store number of stream endpoints returned */
1407 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1408
1409 for (i = 0; i < p_scb->num_seps; i++) {
1410 /* steam not in use, is a sink, and is audio */
1411 if ((!p_scb->sep_info[i].in_use) &&
1412 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1413 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1414 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1415 num_snks++;
1416
1417 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1418 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1419 num_srcs++;
1420 }
1421 }
1422
1423 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1424 num_snks, num_srcs, uuid_int);
1425 p_scb->num_disc_snks = num_snks;
1426 p_scb->num_disc_srcs = num_srcs;
1427
1428 /* if we got any */
1429 if (p_scb->num_seps > 0) {
1430 /* initialize index into discovery results */
1431 p_scb->sep_info_idx = 0;
1432
1433 /* get the capabilities of the first available stream */
1434 bta_av_next_getcap(p_scb, p_data);
1435 }
1436 /* else we got discover response but with no streams; we're done */
1437 else {
1438 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1439 p_scb->PeerAddress().ToString().c_str());
1440 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1441 }
1442 }
1443
1444 /*******************************************************************************
1445 *
1446 * Function bta_av_disc_res_as_acp
1447 *
1448 * Description Handle the AVDTP discover results. Search through the
1449 * results and find the first available stream, and get
1450 * its capabilities.
1451 *
1452 * Returns void
1453 *
1454 ******************************************************************************/
bta_av_disc_res_as_acp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1455 void bta_av_disc_res_as_acp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1456 uint8_t num_snks = 0, i;
1457
1458 APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x", __func__,
1459 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1460
1461 /* store number of stream endpoints returned */
1462 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1463
1464 for (i = 0; i < p_scb->num_seps; i++) {
1465 /* steam is a sink, and is audio */
1466 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1467 (p_scb->sep_info[i].media_type == p_scb->media_type)) {
1468 p_scb->sep_info[i].in_use = false;
1469 num_snks++;
1470 }
1471 }
1472 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
1473 num_snks, 0, UUID_SERVCLASS_AUDIO_SOURCE);
1474 p_scb->num_disc_snks = num_snks;
1475 p_scb->num_disc_srcs = 0;
1476
1477 /* if we got any */
1478 if (p_scb->num_seps > 0) {
1479 /* initialize index into discovery results */
1480 p_scb->sep_info_idx = 0;
1481
1482 /* get the capabilities of the first available stream */
1483 bta_av_next_getcap(p_scb, p_data);
1484 }
1485 /* else we got discover response but with no streams; we're done */
1486 else {
1487 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
1488 p_scb->PeerAddress().ToString().c_str());
1489 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1490 }
1491 }
1492
1493 /*******************************************************************************
1494 *
1495 * Function bta_av_save_caps
1496 *
1497 * Description report the SNK SEP capabilities to application
1498 *
1499 * Returns void
1500 *
1501 ******************************************************************************/
bta_av_save_caps(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1502 void bta_av_save_caps(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1503 AvdtpSepConfig cfg;
1504 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1505 uint8_t old_wait = p_scb->wait;
1506 bool getcap_done = false;
1507
1508 APPL_TRACE_DEBUG(
1509 "%s: peer %s bta_handle:0x%x num_seps:%d sep_info_idx:%d wait:0x%x",
1510 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1511 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1512 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1513 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
1514
1515 cfg = p_scb->peer_cap;
1516 /* let application know the capability of the SNK */
1517 if (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1518 &p_scb->sep_info_idx, p_info->seid, &cfg.num_protect,
1519 cfg.protect_info) != A2DP_SUCCESS) {
1520 p_scb->sep_info_idx++;
1521 APPL_TRACE_DEBUG("%s: result: next sep_info_idx:%d", __func__,
1522 p_scb->sep_info_idx);
1523 } else {
1524 // All capabilities found
1525 getcap_done = true;
1526 APPL_TRACE_DEBUG("%s: result: done sep_info_idx:%d", __func__,
1527 p_scb->sep_info_idx);
1528 }
1529 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1530 A2DP_CodecInfoString(cfg.codec_info).c_str());
1531
1532 if (p_scb->num_seps > p_scb->sep_info_idx && !getcap_done) {
1533 /* Some devices have seps at the end of the discover list, which is not */
1534 /* matching media type(video not audio). */
1535 /* In this case, we are done with getcap without sending another */
1536 /* request to AVDT. */
1537 if (!bta_av_next_getcap(p_scb, p_data)) getcap_done = true;
1538 } else {
1539 getcap_done = true;
1540 }
1541
1542 if (getcap_done) {
1543 APPL_TRACE_DEBUG("%s: getcap_done: num_seps:%d sep_info_idx:%d wait:0x%x",
1544 __func__, p_scb->num_seps, p_scb->sep_info_idx,
1545 p_scb->wait);
1546 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON | BTA_AV_WAIT_ACP_CAPS_STARTED);
1547 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) {
1548 bta_av_start_ok(p_scb, NULL);
1549 }
1550 }
1551 }
1552
1553 /*******************************************************************************
1554 *
1555 * Function bta_av_set_use_rc
1556 *
1557 * Description set to use AVRC for this stream control block.
1558 *
1559 * Returns void
1560 *
1561 ******************************************************************************/
bta_av_set_use_rc(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1562 void bta_av_set_use_rc(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1563 p_scb->use_rc = true;
1564 }
1565
1566 /*******************************************************************************
1567 *
1568 * Function bta_av_cco_close
1569 *
1570 * Description call close call-out function.
1571 *
1572 * Returns void
1573 *
1574 ******************************************************************************/
bta_av_cco_close(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1575 void bta_av_cco_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1576 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x", __func__,
1577 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
1578 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
1579 }
1580
1581 /*******************************************************************************
1582 *
1583 * Function bta_av_open_failed
1584 *
1585 * Description Failed to open an AVDT stream
1586 *
1587 * Returns void
1588 *
1589 ******************************************************************************/
bta_av_open_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1590 void bta_av_open_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1591 bool is_av_opened = false;
1592 tBTA_AV_SCB* p_opened_scb = NULL;
1593 uint8_t idx;
1594
1595 APPL_TRACE_ERROR("%s: peer_addr=%s", __func__,
1596 p_scb->PeerAddress().ToString().c_str());
1597 p_scb->open_status = BTA_AV_FAIL_STREAM;
1598 bta_av_cco_close(p_scb, p_data);
1599
1600 /* check whether there is already an opened audio or video connection with the
1601 * same device */
1602 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (!is_av_opened); idx++) {
1603 p_opened_scb = bta_av_cb.p_scb[idx];
1604 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) &&
1605 (p_opened_scb->PeerAddress() == p_scb->PeerAddress()))
1606 is_av_opened = true;
1607 }
1608
1609 /* if there is already an active AV connnection with the same bd_addr,
1610 don't send disconnect req, just report the open event with
1611 BTA_AV_FAIL_GET_CAP status */
1612 if (is_av_opened) {
1613 tBTA_AV_OPEN open;
1614 open.bd_addr = p_scb->PeerAddress();
1615 open.chnl = p_scb->chnl;
1616 open.hndl = p_scb->hndl;
1617 open.status = BTA_AV_FAIL_GET_CAP;
1618 open.starting = bta_av_chk_start(p_scb);
1619 open.edr = 0;
1620 /* set the state back to initial state */
1621 bta_av_set_scb_sst_init(p_scb);
1622
1623 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
1624 open.sep = AVDT_TSEP_SNK;
1625 } else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
1626 open.sep = AVDT_TSEP_SRC;
1627 }
1628
1629 APPL_TRACE_ERROR(
1630 "%s: there is already an active connection: peer_addr=%s chnl=%d "
1631 "hndl=0x%x status=%d starting=%d edr=%d",
1632 __func__, open.bd_addr.ToString().c_str(), open.chnl, open.hndl,
1633 open.status, open.starting, open.edr);
1634
1635 tBTA_AV bta_av_data;
1636 bta_av_data.open = open;
1637 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
1638 } else {
1639 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
1640 }
1641 }
1642
1643 /*******************************************************************************
1644 *
1645 * Function bta_av_getcap_results
1646 *
1647 * Description Handle the AVDTP get capabilities results. Check the codec
1648 * type and see if it matches ours. If it does not, get the
1649 * capabilities of the next stream, if any.
1650 *
1651 * Returns void
1652 *
1653 ******************************************************************************/
bta_av_getcap_results(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1654 void bta_av_getcap_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1655 AvdtpSepConfig cfg = p_scb->cfg;
1656 uint8_t media_type = A2DP_GetMediaType(p_scb->peer_cap.codec_info);
1657 tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1658
1659 cfg.num_codec = 1;
1660 cfg.num_protect = p_scb->peer_cap.num_protect;
1661 memcpy(cfg.codec_info, p_scb->peer_cap.codec_info, AVDT_CODEC_SIZE);
1662 memcpy(cfg.protect_info, p_scb->peer_cap.protect_info, AVDT_PROTECT_SIZE);
1663
1664 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x num_codec:%d psc_mask=0x%x",
1665 __func__, p_scb->PeerAddress().ToString().c_str(),
1666 p_scb->hndl, p_scb->peer_cap.num_codec, p_scb->cfg.psc_mask);
1667 APPL_TRACE_DEBUG("%s: media type 0x%x, 0x%x", __func__, media_type,
1668 p_scb->media_type);
1669 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1670 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1671
1672 /* if codec present and we get a codec configuration */
1673 if ((p_scb->peer_cap.num_codec != 0) && (media_type == p_scb->media_type) &&
1674 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
1675 &p_scb->sep_info_idx, p_info->seid,
1676 &cfg.num_protect,
1677 cfg.protect_info) == A2DP_SUCCESS)) {
1678 /* UUID for which connection was initiatied */
1679 uint16_t uuid_int = p_scb->uuid_int;
1680
1681 /* save copy of codec configuration */
1682 p_scb->cfg = cfg;
1683
1684 APPL_TRACE_DEBUG("%s: result: sep_info_idx=%d", __func__,
1685 p_scb->sep_info_idx);
1686 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
1687 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1688
1689 APPL_TRACE_DEBUG("%s: initiator UUID = 0x%x", __func__, uuid_int);
1690 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1691 bta_av_adjust_seps_idx(p_scb,
1692 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1693 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1694 bta_av_adjust_seps_idx(p_scb,
1695 bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1696 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
1697 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
1698
1699 /* use only the services peer supports */
1700 cfg.psc_mask &= p_scb->peer_cap.psc_mask;
1701 p_scb->cur_psc_mask = cfg.psc_mask;
1702 APPL_TRACE_DEBUG(
1703 "%s: peer %s bta_handle:0x%x sep_idx:%d sep_info_idx:%d "
1704 "cur_psc_mask:0x%x",
1705 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1706 p_scb->sep_idx, p_scb->sep_info_idx, p_scb->cur_psc_mask);
1707
1708 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1709 (p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
1710 APPL_TRACE_DEBUG("%s: configure decoder for Sink connection", __func__);
1711 tBTA_AV_MEDIA av_sink_codec_info;
1712 av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
1713 av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
1714 p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
1715 p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
1716 }
1717
1718 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) {
1719 A2DP_AdjustCodec(cfg.codec_info);
1720 }
1721
1722 /* open the stream */
1723 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->PeerAddress(),
1724 p_scb->hdi, p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1725 } else {
1726 /* try the next stream, if any */
1727 p_scb->sep_info_idx++;
1728 bta_av_next_getcap(p_scb, p_data);
1729 }
1730 }
1731
1732 /*******************************************************************************
1733 *
1734 * Function bta_av_setconfig_rej
1735 *
1736 * Description Send AVDTP set config reject.
1737 *
1738 * Returns void
1739 *
1740 ******************************************************************************/
bta_av_setconfig_rej(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1741 void bta_av_setconfig_rej(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1742 tBTA_AV_REJECT reject;
1743 uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
1744
1745 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1746 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
1747 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
1748 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1749
1750 reject.bd_addr = p_data->str_msg.bd_addr;
1751 reject.hndl = p_scb->hndl;
1752
1753 tBTA_AV bta_av_data;
1754 bta_av_data.reject = reject;
1755 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, &bta_av_data);
1756 }
1757
1758 /*******************************************************************************
1759 *
1760 * Function bta_av_discover_req
1761 *
1762 * Description Send an AVDTP discover request to the peer.
1763 *
1764 * Returns void
1765 *
1766 ******************************************************************************/
bta_av_discover_req(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)1767 void bta_av_discover_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
1768 /* send avdtp discover request */
1769
1770 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
1771 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
1772 }
1773
1774 /*******************************************************************************
1775 *
1776 * Function bta_av_conn_failed
1777 *
1778 * Description AVDTP connection failed.
1779 *
1780 * Returns void
1781 *
1782 ******************************************************************************/
bta_av_conn_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1783 void bta_av_conn_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1784 APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
1785 p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
1786
1787 p_scb->open_status = BTA_AV_FAIL_STREAM;
1788 bta_av_str_closed(p_scb, p_data);
1789 }
1790
1791 /*******************************************************************************
1792 *
1793 * Function bta_av_do_start
1794 *
1795 * Description Start stream.
1796 *
1797 * Returns void
1798 *
1799 ******************************************************************************/
bta_av_do_start(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1800 void bta_av_do_start(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1801 LOG_INFO(
1802 "A2dp stream start peer:%s sco_occupied:%s av_role:0x%x started:%s "
1803 "wait:0x%x",
1804 PRIVATE_ADDRESS(p_scb->PeerAddress()),
1805 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1806 logbool(p_scb->started).c_str(), p_scb->wait);
1807 if (bta_av_cb.sco_occupied) {
1808 LOG_WARN("A2dp stream start failed");
1809 bta_av_start_failed(p_scb, p_data);
1810 return;
1811 }
1812
1813 if (p_scb->started) {
1814 p_scb->role |= BTA_AV_ROLE_START_INT;
1815 if (p_scb->wait != 0) {
1816 LOG_WARN(
1817 "%s: peer %s start stream request ignored: "
1818 "already waiting: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1819 __func__, p_scb->PeerAddress().ToString().c_str(),
1820 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1821 logbool(p_scb->started).c_str(), p_scb->wait);
1822 return;
1823 }
1824 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
1825 notify_start_failed(p_scb);
1826 } else {
1827 if (p_data) {
1828 bta_av_set_use_latency_mode(p_scb, p_data->do_start.use_latency_mode);
1829 }
1830 bta_av_start_ok(p_scb, NULL);
1831 }
1832 return;
1833 }
1834
1835 if ((p_scb->role & BTA_AV_ROLE_START_INT) != 0) {
1836 LOG_WARN(
1837 "%s: peer %s start stream request ignored: "
1838 "already initiated: sco_occupied:%s role:0x%x started:%s wait:0x%x",
1839 __func__, p_scb->PeerAddress().ToString().c_str(),
1840 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1841 logbool(p_scb->started).c_str(), p_scb->wait);
1842 return;
1843 }
1844
1845 p_scb->role |= BTA_AV_ROLE_START_INT;
1846 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1847 /* disallow role switch during streaming, only if we are the central role
1848 * i.e. allow role switch, if we are peripheral.
1849 * It would not hurt us, if the peer device wants us to be central
1850 * disable sniff mode unconditionally during streaming */
1851 tHCI_ROLE cur_role;
1852 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
1853 (cur_role == HCI_ROLE_CENTRAL)) {
1854 BTM_block_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
1855 } else {
1856 BTM_block_sniff_mode_for(p_scb->PeerAddress());
1857 }
1858
1859 uint16_t result = AVDT_StartReq(&p_scb->avdt_handle, 1);
1860 if (result != AVDT_SUCCESS) {
1861 LOG_ERROR("%s: AVDT_StartReq failed for peer %s result:%d", __func__,
1862 p_scb->PeerAddress().ToString().c_str(), result);
1863 bta_av_start_failed(p_scb, p_data);
1864 } else if (p_data) {
1865 bta_av_set_use_latency_mode(p_scb, p_data->do_start.use_latency_mode);
1866 }
1867 LOG_INFO(
1868 "%s: peer %s start requested: sco_occupied:%s role:0x%x "
1869 "started:%s wait:0x%x",
1870 __func__, p_scb->PeerAddress().ToString().c_str(),
1871 logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
1872 logbool(p_scb->started).c_str(), p_scb->wait);
1873 }
1874
1875 /*******************************************************************************
1876 *
1877 * Function bta_av_str_stopped
1878 *
1879 * Description Stream stopped.
1880 *
1881 * Returns void
1882 *
1883 ******************************************************************************/
bta_av_str_stopped(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1884 void bta_av_str_stopped(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1885 tBTA_AV_SUSPEND suspend_rsp;
1886 uint8_t start = p_scb->started;
1887 bool sus_evt = true;
1888 BT_HDR* p_buf;
1889
1890 APPL_TRACE_ERROR(
1891 "%s: peer %s bta_handle:0x%x audio_open_cnt:%d, p_data %p start:%d",
1892 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
1893 bta_av_cb.audio_open_cnt, p_data, start);
1894
1895 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
1896 BTM_unblock_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
1897
1898 if (p_scb->co_started) {
1899 if (bta_av_cb.offload_started_hndl == p_scb->hndl) {
1900 bta_av_vendor_offload_stop();
1901 bta_av_cb.offload_started_hndl = BTA_AV_INVALID_HANDLE;
1902 } else if (bta_av_cb.offload_start_pending_hndl == p_scb->hndl) {
1903 APPL_TRACE_WARNING("%s: Stop pending offload start command", __func__);
1904 bta_av_vendor_offload_stop();
1905 bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
1906 }
1907
1908 bta_av_stream_chg(p_scb, false);
1909 p_scb->co_started = false;
1910
1911 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
1912 }
1913
1914 /* if q_info.a2dp_list is not empty, drop it now */
1915 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
1916 while (!list_is_empty(p_scb->a2dp_list)) {
1917 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
1918 list_remove(p_scb->a2dp_list, p_buf);
1919 osi_free(p_buf);
1920 }
1921
1922 /* drop the audio buffers queued in L2CAP */
1923 if (p_data && p_data->api_stop.flush)
1924 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1925 }
1926
1927 suspend_rsp.chnl = p_scb->chnl;
1928 suspend_rsp.hndl = p_scb->hndl;
1929
1930 if (p_data && p_data->api_stop.suspend) {
1931 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, sup:%d", __func__,
1932 p_scb->PeerAddress().ToString().c_str(), start,
1933 p_scb->suspend_sup);
1934 if ((start) && (p_scb->suspend_sup)) {
1935 sus_evt = false;
1936 p_scb->l2c_bufs = 0;
1937 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
1938 }
1939
1940 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is
1941 * true*/
1942 if ((sus_evt) && (p_scb->state != BTA_AV_RCFG_SST)) {
1943 suspend_rsp.status = BTA_AV_SUCCESS;
1944 suspend_rsp.initiator = true;
1945 tBTA_AV bta_av_data;
1946 bta_av_data.suspend = suspend_rsp;
1947 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
1948 }
1949 } else {
1950 suspend_rsp.status = BTA_AV_SUCCESS;
1951 suspend_rsp.initiator = true;
1952 APPL_TRACE_EVENT("%s: status %d", __func__, suspend_rsp.status);
1953
1954 // Send STOP_EVT event only if not in reconfiguring state.
1955 // However, we should send STOP_EVT if we are reconfiguring when taking
1956 // the Close->Configure->Open->Start path.
1957 if (p_scb->state != BTA_AV_RCFG_SST ||
1958 (p_data && p_data->api_stop.reconfig_stop)) {
1959 tBTA_AV bta_av_data;
1960 bta_av_data.suspend = suspend_rsp;
1961 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, &bta_av_data);
1962 }
1963 }
1964 }
1965
1966 /*******************************************************************************
1967 *
1968 * Function bta_av_reconfig
1969 *
1970 * Description process the reconfigure request.
1971 * save the parameter in control block and
1972 * suspend, reconfigure or close the stream
1973 *
1974 * Returns void
1975 *
1976 ******************************************************************************/
bta_av_reconfig(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)1977 void bta_av_reconfig(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
1978 AvdtpSepConfig* p_cfg;
1979 tBTA_AV_API_STOP stop;
1980 tBTA_AV_API_RCFG* p_rcfg = &p_data->api_reconfig;
1981
1982 APPL_TRACE_DEBUG("%s: r:%d, s:%d idx: %d (o:%d)", __func__, p_scb->recfg_sup,
1983 p_scb->suspend_sup, p_scb->rcfg_idx, p_scb->sep_info_idx);
1984
1985 p_scb->num_recfg = 0;
1986 /* store the new configuration in control block */
1987 p_cfg = &p_scb->cfg;
1988
1989 alarm_cancel(p_scb->avrc_ct_timer);
1990
1991 LOG_DEBUG("p_scb->sep_info_idx=%d p_scb->rcfg_idx=%d p_rcfg->sep_info_idx=%d",
1992 p_scb->sep_info_idx, p_scb->rcfg_idx, p_rcfg->sep_info_idx);
1993 LOG_DEBUG("Peer capable codec: %s",
1994 A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
1995 LOG_DEBUG("Current codec: %s",
1996 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
1997 LOG_DEBUG("Reconfig codec: %s",
1998 A2DP_CodecInfoString(p_rcfg->codec_info).c_str());
1999
2000 BTM_LogHistory(
2001 kBtmLogTag, p_scb->PeerAddress(), "Codec reconfig",
2002 base::StringPrintf("%s => %s", A2DP_CodecName(p_scb->cfg.codec_info),
2003 A2DP_CodecName(p_rcfg->codec_info)));
2004
2005 p_cfg->num_protect = p_rcfg->num_protect;
2006 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
2007 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
2008 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2009 p_cfg->psc_mask = p_scb->cur_psc_mask;
2010
2011 // If the requested SEP index is same as the current one, then we
2012 // can Suspend->Reconfigure->Start.
2013 // Otherwise, we have to Close->Configure->Open->Start or
2014 // Close->Configure->Open for streams that are / are not started.
2015 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && p_rcfg->suspend &&
2016 p_scb->recfg_sup && p_scb->suspend_sup) {
2017 if (p_scb->started) {
2018 // Suspend->Reconfigure->Start
2019 stop.flush = false;
2020 stop.suspend = true;
2021 stop.reconfig_stop = false;
2022 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2023 } else {
2024 // Reconfigure
2025 APPL_TRACE_DEBUG("%s: reconfig", __func__);
2026 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2027 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2028 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2029 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2030 }
2031 } else {
2032 // Close the stream first, and then Configure it
2033 APPL_TRACE_DEBUG("%s: Close/Open started: %d state: %d num_protect: %d",
2034 __func__, p_scb->started, p_scb->state,
2035 p_cfg->num_protect);
2036 if (p_scb->started) {
2037 // Close->Configure->Open->Start
2038 if ((p_scb->rcfg_idx != p_scb->sep_info_idx) && p_scb->recfg_sup) {
2039 // Make sure we trigger STOP_EVT when taking the longer road to
2040 // reconfiguration, otherwise we don't call Start.
2041 stop.flush = false;
2042 stop.suspend = false;
2043 stop.reconfig_stop = true;
2044 bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
2045 } else {
2046 bta_av_str_stopped(p_scb, NULL);
2047 }
2048 p_scb->started = false;
2049 } else {
2050 // Close->Configure->Open
2051 bta_av_str_stopped(p_scb, NULL);
2052 }
2053 // Drop the buffers queued in L2CAP
2054 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2055 AVDT_CloseReq(p_scb->avdt_handle);
2056 }
2057 }
2058
2059 /*******************************************************************************
2060 *
2061 * Function bta_av_data_path
2062 *
2063 * Description Handle stream data path.
2064 *
2065 * Returns void
2066 *
2067 ******************************************************************************/
bta_av_data_path(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2068 void bta_av_data_path(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2069 BT_HDR* p_buf = NULL;
2070 uint32_t timestamp;
2071 bool new_buf = false;
2072 uint8_t m_pt = 0x60;
2073 tAVDT_DATA_OPT_MASK opt;
2074
2075 if (!p_scb->started) return;
2076
2077 if (p_scb->cong) return;
2078
2079 if (p_scb->use_rtp_header_marker_bit) {
2080 m_pt |= AVDT_MARKER_SET;
2081 }
2082
2083 // Always get the current number of bufs que'd up
2084 p_scb->l2c_bufs =
2085 (uint8_t)L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2086
2087 if (!list_is_empty(p_scb->a2dp_list)) {
2088 p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
2089 list_remove(p_scb->a2dp_list, p_buf);
2090 /* use q_info.a2dp data, read the timestamp */
2091 timestamp = *(uint32_t*)(p_buf + 1);
2092 } else {
2093 new_buf = true;
2094 /* A2DP_list empty, call co_data, dup data to other channels */
2095 p_buf = p_scb->p_cos->data(p_scb->cfg.codec_info, ×tamp);
2096
2097 if (p_buf) {
2098 /* use the offset area for the time stamp */
2099 *(uint32_t*)(p_buf + 1) = timestamp;
2100
2101 /* dup the data to other channels */
2102 bta_av_dup_audio_buf(p_scb, p_buf);
2103 }
2104 }
2105
2106 if (p_buf) {
2107 if (p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) {
2108 /* There's a buffer, just queue it to L2CAP.
2109 * There's no need to increment it here, it is always read from
2110 * L2CAP (see above).
2111 */
2112
2113 /* opt is a bit mask, it could have several options set */
2114 opt = AVDT_DATA_OPT_NONE;
2115 if (p_scb->no_rtp_header) {
2116 opt |= AVDT_DATA_OPT_NO_RTP;
2117 }
2118
2119 //
2120 // Fragment the payload if larger than the MTU.
2121 // NOTE: The fragmentation is RTP-compatibie.
2122 //
2123 size_t extra_fragments_n = 0;
2124 if (p_buf->len > 0) {
2125 extra_fragments_n = (p_buf->len / p_scb->stream_mtu) +
2126 ((p_buf->len % p_scb->stream_mtu) ? 1 : 0) - 1;
2127 }
2128 std::vector<BT_HDR*> extra_fragments;
2129 extra_fragments.reserve(extra_fragments_n);
2130
2131 uint8_t* data_begin = (uint8_t*)(p_buf + 1) + p_buf->offset;
2132 uint8_t* data_end = (uint8_t*)(p_buf + 1) + p_buf->offset + p_buf->len;
2133 while (extra_fragments_n-- > 0) {
2134 data_begin += p_scb->stream_mtu;
2135 size_t fragment_len = data_end - data_begin;
2136 if (fragment_len > p_scb->stream_mtu) fragment_len = p_scb->stream_mtu;
2137
2138 BT_HDR* p_buf2 = (BT_HDR*)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
2139 p_buf2->offset = p_buf->offset;
2140 p_buf2->len = 0;
2141 p_buf2->layer_specific = 0;
2142 uint8_t* packet2 =
2143 (uint8_t*)(p_buf2 + 1) + p_buf2->offset + p_buf2->len;
2144 memcpy(packet2, data_begin, fragment_len);
2145 p_buf2->len += fragment_len;
2146 extra_fragments.push_back(p_buf2);
2147 p_buf->len -= fragment_len;
2148 }
2149
2150 if (!extra_fragments.empty()) {
2151 // Reset the RTP Marker bit for all fragments except the last one
2152 m_pt &= ~AVDT_MARKER_SET;
2153 }
2154 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2155 for (size_t i = 0; i < extra_fragments.size(); i++) {
2156 if (i + 1 == extra_fragments.size()) {
2157 // Set the RTP Marker bit for the last fragment
2158 m_pt |= AVDT_MARKER_SET;
2159 }
2160 BT_HDR* p_buf2 = extra_fragments[i];
2161 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf2, timestamp, m_pt, opt);
2162 }
2163 p_scb->cong = true;
2164 } else {
2165 /* there's a buffer, but L2CAP does not seem to be moving data */
2166 if (new_buf) {
2167 /* just got this buffer from co_data,
2168 * put it in queue */
2169 list_append(p_scb->a2dp_list, p_buf);
2170 } else {
2171 /* just dequeue it from the a2dp_list */
2172 if (list_length(p_scb->a2dp_list) < 3) {
2173 /* put it back to the queue */
2174 list_prepend(p_scb->a2dp_list, p_buf);
2175 } else {
2176 /* too many buffers in a2dp_list, drop it. */
2177 bta_av_co_audio_drop(p_scb->hndl, p_scb->PeerAddress());
2178 osi_free(p_buf);
2179 }
2180 }
2181 }
2182 }
2183 }
2184
2185 /*******************************************************************************
2186 *
2187 * Function bta_av_start_ok
2188 *
2189 * Description Stream started.
2190 *
2191 * Returns void
2192 *
2193 ******************************************************************************/
bta_av_start_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2194 void bta_av_start_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2195 bool initiator = false;
2196 bool suspend = false;
2197 uint8_t new_role = p_scb->role;
2198 BT_HDR_RIGID hdr;
2199 tHCI_ROLE cur_role;
2200 uint8_t local_tsep = p_scb->seps[p_scb->sep_idx].tsep;
2201
2202 LOG_INFO("%s: peer %s bta_handle:0x%x wait:0x%x role:0x%x local_tsep:%d",
2203 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2204 p_scb->wait, p_scb->role, local_tsep);
2205
2206 p_scb->started = true;
2207
2208 if (local_tsep == AVDT_TSEP_SRC) {
2209 // The RTP Header marker bit for the A2DP Source encoder
2210 A2dpCodecConfig* codec_config =
2211 bta_av_get_a2dp_peer_current_codec(p_scb->PeerAddress());
2212 CHECK(codec_config != nullptr);
2213 p_scb->use_rtp_header_marker_bit = codec_config->useRtpHeaderMarkerBit();
2214 }
2215
2216 if (p_scb->sco_suspend) {
2217 p_scb->sco_suspend = false;
2218 }
2219
2220 if (new_role & BTA_AV_ROLE_START_INT) initiator = true;
2221
2222 /* for A2DP SINK we do not send get_caps */
2223 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle) &&
2224 (local_tsep == AVDT_TSEP_SNK)) {
2225 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2226 APPL_TRACE_DEBUG("%s: local SEP type is SNK new wait is 0x%x", __func__,
2227 p_scb->wait);
2228 }
2229 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) {
2230 /* role switch has failed */
2231 APPL_TRACE_ERROR(
2232 "%s: peer %s role switch failed: bta_handle:0x%x wait:0x%x, role:0x%x",
2233 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2234 p_scb->wait, p_scb->role);
2235 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2236 p_data = (tBTA_AV_DATA*)&hdr;
2237 hdr.offset = BTA_AV_RS_FAIL;
2238 }
2239 APPL_TRACE_DEBUG("%s: peer %s wait:0x%x use_rtp_header_marker_bit:%s",
2240 __func__, p_scb->PeerAddress().ToString().c_str(),
2241 p_scb->wait,
2242 (p_scb->use_rtp_header_marker_bit) ? "true" : "false");
2243
2244 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) {
2245 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2246 if (p_data->hdr.offset == BTA_AV_RS_FAIL) {
2247 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2248 tBTA_AV_START start;
2249 start.chnl = p_scb->chnl;
2250 start.status = BTA_AV_FAIL_ROLE;
2251 start.hndl = p_scb->hndl;
2252 start.initiator = initiator;
2253 tBTA_AV bta_av_data;
2254 bta_av_data.start = start;
2255 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2256 return;
2257 }
2258 }
2259
2260 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT))
2261 p_scb->q_tag = BTA_AV_Q_TAG_START;
2262 else {
2263 /* The wait flag may be set here while we are already central on the link */
2264 /* this could happen if a role switch complete event occurred during
2265 * reconfig */
2266 /* if we are now central on the link, there is no need to wait for the role
2267 * switch, */
2268 /* complete anymore so we can clear the wait for role switch flag */
2269 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2270 }
2271
2272 if (p_scb->wait &
2273 (BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START)) {
2274 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2275 p_scb->q_tag = BTA_AV_Q_TAG_START;
2276 }
2277
2278 if (p_scb->wait) {
2279 APPL_TRACE_ERROR("%s: peer %s wait:0x%x q_tag:%d not started", __func__,
2280 p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
2281 p_scb->q_tag);
2282 /* Clear first bit of p_scb->wait and not to return from this point else
2283 * HAL layer gets blocked. And if there is delay in Get Capability response
2284 * as
2285 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is
2286 * not called
2287 * again from bta_av_save_caps.
2288 */
2289 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2290 }
2291
2292 /* tell role manager to check M/S role */
2293 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2294
2295 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2296
2297 if (p_scb->media_type == AVDT_MEDIA_TYPE_AUDIO) {
2298 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2299 * However, bta_av_stream_chg is not called to increase
2300 * bta_av_cb.audio_count yet.
2301 * If the code were to be re-arranged for some reasons, this number may need
2302 * to be changed
2303 */
2304 p_scb->co_started = bta_av_cb.audio_open_cnt;
2305 }
2306
2307 /* clear the congestion flag */
2308 p_scb->cong = false;
2309
2310 if (new_role & BTA_AV_ROLE_START_INT) {
2311 new_role &= ~BTA_AV_ROLE_START_INT;
2312 } else if ((new_role & BTA_AV_ROLE_AD_ACP) &&
2313 (new_role & BTA_AV_ROLE_SUSPEND_OPT)) {
2314 suspend = true;
2315 }
2316
2317 if (!suspend) {
2318 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2319 bta_av_stream_chg(p_scb, true);
2320 }
2321
2322 {
2323 /* If sink starts stream, disable sniff mode here */
2324 if (!initiator) {
2325 /* If souce is the central role, disable role switch during streaming.
2326 * Otherwise allow role switch, if source is peripheral.
2327 * Because it would not hurt source, if the peer device wants source to be
2328 * central.
2329 * disable sniff mode unconditionally during streaming */
2330 if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
2331 (cur_role == HCI_ROLE_CENTRAL)) {
2332 BTM_block_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
2333 } else {
2334 BTM_block_sniff_mode_for(p_scb->PeerAddress());
2335 }
2336 }
2337
2338 p_scb->role = new_role;
2339 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2340 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2341
2342 p_scb->no_rtp_header = false;
2343 p_scb->p_cos->start(p_scb->hndl, p_scb->PeerAddress(),
2344 p_scb->cfg.codec_info, &p_scb->no_rtp_header);
2345 p_scb->co_started = true;
2346
2347 APPL_TRACE_DEBUG("%s: peer %s suspending: %d, role:0x%x, init %d", __func__,
2348 p_scb->PeerAddress().ToString().c_str(), suspend,
2349 p_scb->role, initiator);
2350
2351 tBTA_AV_START start;
2352 start.suspending = suspend;
2353 start.initiator = initiator;
2354 start.chnl = p_scb->chnl;
2355 start.status = BTA_AV_SUCCESS;
2356 start.hndl = p_scb->hndl;
2357 tBTA_AV bta_av_data;
2358 bta_av_data.start = start;
2359 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2360
2361 if (suspend) {
2362 tBTA_AV_API_STOP stop;
2363 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2364 p_scb->cong = true; /* do not allow the media data to go through */
2365 /* do not duplicate the media packets to this channel */
2366 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2367 p_scb->co_started = false;
2368 stop.flush = false;
2369 stop.suspend = true;
2370 stop.reconfig_stop = false;
2371 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA*)&stop);
2372 }
2373 }
2374 }
2375
2376 /*******************************************************************************
2377 *
2378 * Function bta_av_start_failed
2379 *
2380 * Description Stream start failed.
2381 *
2382 * Returns void
2383 *
2384 ******************************************************************************/
bta_av_start_failed(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2385 void bta_av_start_failed(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2386 APPL_TRACE_ERROR(
2387 "%s: peer %s bta_handle:0x%x audio_open_cnt:%d started:%s co_started:%d",
2388 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2389 bta_av_cb.audio_open_cnt, logbool(p_scb->started).c_str(),
2390 p_scb->co_started);
2391
2392 if (!p_scb->started && !p_scb->co_started) {
2393 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2394 notify_start_failed(p_scb);
2395 }
2396
2397 BTM_unblock_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
2398 p_scb->sco_suspend = false;
2399 }
2400
2401 /*******************************************************************************
2402 *
2403 * Function bta_av_str_closed
2404 *
2405 * Description Stream closed.
2406 *
2407 * Returns void
2408 *
2409 ******************************************************************************/
bta_av_str_closed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2410 void bta_av_str_closed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2411 tBTA_AV data;
2412 tBTA_AV_EVT event;
2413
2414 APPL_TRACE_WARNING(
2415 "%s: peer %s bta_handle:0x%x open_status:%d chnl:%d co_started:%d",
2416 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2417 p_scb->open_status, p_scb->chnl, p_scb->co_started);
2418
2419 BTM_unblock_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
2420 if (bta_av_cb.audio_open_cnt <= 1) {
2421 BTM_default_unblock_role_switch();
2422 }
2423
2424 if (p_scb->open_status != BTA_AV_SUCCESS) {
2425 /* must be failure when opening the stream */
2426 data.open.bd_addr = p_scb->PeerAddress();
2427 data.open.status = p_scb->open_status;
2428 data.open.chnl = p_scb->chnl;
2429 data.open.hndl = p_scb->hndl;
2430
2431 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC)
2432 data.open.sep = AVDT_TSEP_SNK;
2433 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)
2434 data.open.sep = AVDT_TSEP_SRC;
2435
2436 event = BTA_AV_OPEN_EVT;
2437 p_scb->open_status = BTA_AV_SUCCESS;
2438
2439 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2440 bta_av_cleanup(p_scb, p_data);
2441 (*bta_av_cb.p_cback)(event, &data);
2442 } else {
2443 /* do stop if we were started */
2444 if (p_scb->co_started) {
2445 bta_av_str_stopped(p_scb, NULL);
2446 }
2447
2448 {
2449 p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
2450 data.close.chnl = p_scb->chnl;
2451 data.close.hndl = p_scb->hndl;
2452 event = BTA_AV_CLOSE_EVT;
2453
2454 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
2455 bta_av_cleanup(p_scb, p_data);
2456 (*bta_av_cb.p_cback)(event, &data);
2457 }
2458 }
2459 }
2460
2461 /*******************************************************************************
2462 *
2463 * Function bta_av_clr_cong
2464 *
2465 * Description Clear stream congestion flag.
2466 *
2467 * Returns void
2468 *
2469 ******************************************************************************/
bta_av_clr_cong(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2470 void bta_av_clr_cong(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2471 APPL_TRACE_DEBUG("%s", __func__);
2472 if (p_scb->co_started) {
2473 p_scb->cong = false;
2474 }
2475 }
2476
2477 /*******************************************************************************
2478 *
2479 * Function bta_av_suspend_cfm
2480 *
2481 * Description process the suspend response
2482 *
2483 * Returns void
2484 *
2485 ******************************************************************************/
bta_av_suspend_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2486 void bta_av_suspend_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2487 tBTA_AV_SUSPEND suspend_rsp;
2488 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2489
2490 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x audio_open_cnt:%d err_code:%d",
2491 __func__, p_scb->PeerAddress().ToString().c_str(),
2492 p_scb->hndl, bta_av_cb.audio_open_cnt, err_code);
2493
2494 if (!p_scb->started) {
2495 /* handle the condition where there is a collision of SUSPEND req from
2496 *either side
2497 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2498 */
2499 APPL_TRACE_WARNING("%s: already suspended, ignore, err_code %d", __func__,
2500 err_code);
2501 return;
2502 }
2503
2504 suspend_rsp.status = BTA_AV_SUCCESS;
2505 if (err_code && (err_code != AVDT_ERR_BAD_STATE)) {
2506 suspend_rsp.status = BTA_AV_FAIL;
2507
2508 APPL_TRACE_ERROR("%s: suspend failed, closing connection", __func__);
2509
2510 /* SUSPEND failed. Close connection. */
2511 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2512 } else {
2513 /* only set started to false when suspend is successful */
2514 p_scb->started = false;
2515 }
2516
2517 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2518 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2519 p_scb->cong = false;
2520 }
2521
2522 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
2523 BTM_unblock_role_switch_and_sniff_mode_for(p_scb->PeerAddress());
2524
2525 /* in case that we received suspend_ind, we may need to call co_stop here */
2526 if (p_scb->co_started) {
2527 if (bta_av_cb.offload_started_hndl == p_scb->hndl) {
2528 bta_av_vendor_offload_stop();
2529 bta_av_cb.offload_started_hndl = BTA_AV_INVALID_HANDLE;
2530 } else if (bta_av_cb.offload_start_pending_hndl == p_scb->hndl) {
2531 APPL_TRACE_WARNING("%s: Stop pending offload start command", __func__);
2532 bta_av_vendor_offload_stop();
2533 bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
2534 }
2535 bta_av_stream_chg(p_scb, false);
2536
2537 {
2538 p_scb->co_started = false;
2539 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2540 }
2541 }
2542
2543 {
2544 suspend_rsp.chnl = p_scb->chnl;
2545 suspend_rsp.hndl = p_scb->hndl;
2546 suspend_rsp.initiator = p_data->str_msg.initiator;
2547 tBTA_AV bta_av_data;
2548 bta_av_data.suspend = suspend_rsp;
2549 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
2550 }
2551 }
2552
2553 /*******************************************************************************
2554 *
2555 * Function bta_av_rcfg_str_ok
2556 *
2557 * Description report reconfigure successful
2558 *
2559 * Returns void
2560 *
2561 ******************************************************************************/
bta_av_rcfg_str_ok(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2562 void bta_av_rcfg_str_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2563 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2564 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x l2c_cid:%d", __func__,
2565 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2566 p_scb->l2c_cid);
2567
2568 if (p_data != NULL) {
2569 // p_data could be NULL if the reconfig was triggered by the local device
2570 p_scb->stream_mtu =
2571 p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
2572 APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__,
2573 p_scb->l2c_cid, p_scb->stream_mtu);
2574 p_scb->p_cos->update_mtu(p_scb->hndl, p_scb->PeerAddress(),
2575 p_scb->stream_mtu);
2576 }
2577
2578 /* rc listen */
2579 bta_av_st_rc_timer(p_scb, NULL);
2580
2581 /* No need to keep the role bits once reconfig is done. */
2582 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2583 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2584 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2585
2586 {
2587 /* reconfigure success */
2588 tBTA_AV_RECONFIG reconfig;
2589 reconfig.status = BTA_AV_SUCCESS;
2590 reconfig.chnl = p_scb->chnl;
2591 reconfig.hndl = p_scb->hndl;
2592 tBTA_AV bta_av_data;
2593 bta_av_data.reconfig = reconfig;
2594 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2595 }
2596 }
2597
2598 /*******************************************************************************
2599 *
2600 * Function bta_av_rcfg_failed
2601 *
2602 * Description process reconfigure failed
2603 *
2604 * Returns void
2605 *
2606 ******************************************************************************/
bta_av_rcfg_failed(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2607 void bta_av_rcfg_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2608 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2609 p_scb->num_recfg, bta_av_cb.conn_lcb,
2610 p_scb->PeerAddress().ToString().c_str());
2611
2612 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2613 bta_av_cco_close(p_scb, p_data);
2614 /* report failure */
2615 tBTA_AV_RECONFIG reconfig;
2616 reconfig.status = BTA_AV_FAIL_STREAM;
2617 reconfig.chnl = p_scb->chnl;
2618 reconfig.hndl = p_scb->hndl;
2619 tBTA_AV bta_av_data;
2620 bta_av_data.reconfig = reconfig;
2621 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2622 /* go to closing state */
2623 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2624 } else {
2625 /* open failed. try again */
2626 p_scb->num_recfg++;
2627 // conn_lcb is the index bitmask of all used LCBs, and since LCB and SCB use
2628 // the same index, it should be safe to use SCB index here.
2629 if ((bta_av_cb.conn_lcb & (1 << p_scb->hdi)) != 0) {
2630 AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
2631 } else {
2632 APPL_TRACE_WARNING("%s: conn_lcb=0x%x bta_handle=0x%x (hdi=%u) no link",
2633 __func__, bta_av_cb.conn_lcb, p_scb->hndl, p_scb->hdi);
2634 bta_av_connect_req(p_scb, NULL);
2635 }
2636 }
2637 }
2638
2639 /*******************************************************************************
2640 *
2641 * Function bta_av_rcfg_connect
2642 *
2643 * Description stream closed. reconnect the stream
2644 *
2645 * Returns void
2646 *
2647 ******************************************************************************/
bta_av_rcfg_connect(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2648 void bta_av_rcfg_connect(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2649 APPL_TRACE_DEBUG("%s", __func__);
2650
2651 p_scb->cong = false;
2652 p_scb->num_recfg++;
2653 APPL_TRACE_DEBUG("%s: num_recfg: %d", __func__, p_scb->num_recfg);
2654 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2655 /* let bta_av_rcfg_failed report fail */
2656 bta_av_rcfg_failed(p_scb, NULL);
2657 } else {
2658 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
2659 }
2660 }
2661
2662 /*******************************************************************************
2663 *
2664 * Function bta_av_rcfg_discntd
2665 *
2666 * Description AVDT disconnected. reconnect the stream
2667 *
2668 * Returns void
2669 *
2670 ******************************************************************************/
bta_av_rcfg_discntd(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2671 void bta_av_rcfg_discntd(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2672 APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
2673 p_scb->num_recfg, bta_av_cb.conn_lcb,
2674 p_scb->PeerAddress().ToString().c_str());
2675
2676 p_scb->num_recfg++;
2677 if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
2678 /* report failure */
2679 tBTA_AV_RECONFIG reconfig;
2680 reconfig.status = BTA_AV_FAIL_STREAM;
2681 reconfig.chnl = p_scb->chnl;
2682 reconfig.hndl = p_scb->hndl;
2683 tBTA_AV bta_av_data;
2684 bta_av_data.reconfig = reconfig;
2685 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2686 /* report close event & go to init state */
2687 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2688 } else {
2689 AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, &bta_av_proc_stream_evt);
2690 }
2691 }
2692
2693 /*******************************************************************************
2694 *
2695 * Function bta_av_suspend_cont
2696 *
2697 * Description received the suspend response.
2698 * continue to reconfigure the stream
2699 *
2700 * Returns void
2701 *
2702 ******************************************************************************/
bta_av_suspend_cont(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2703 void bta_av_suspend_cont(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2704 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2705
2706 APPL_TRACE_DEBUG("%s: err_code=%d", __func__, err_code);
2707
2708 p_scb->started = false;
2709 p_scb->cong = false;
2710 if (err_code) {
2711 if (AVDT_ERR_CONNECT == err_code) {
2712 /* report failure */
2713 tBTA_AV_RECONFIG reconfig;
2714 reconfig.status = BTA_AV_FAIL;
2715 tBTA_AV bta_av_data;
2716 bta_av_data.reconfig = reconfig;
2717 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
2718 APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
2719 p_scb->PeerAddress().ToString().c_str());
2720 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2721 } else {
2722 APPL_TRACE_ERROR("%s: suspend rejected, try close", __func__);
2723 /* drop the buffers queued in L2CAP */
2724 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2725
2726 AVDT_CloseReq(p_scb->avdt_handle);
2727 }
2728 } else {
2729 APPL_TRACE_DEBUG("%s: calling AVDT_ReconfigReq", __func__);
2730 /* reconfig the stream */
2731
2732 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2733 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2734 AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
2735 p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
2736 }
2737 }
2738
2739 /*******************************************************************************
2740 *
2741 * Function bta_av_rcfg_cfm
2742 *
2743 * Description if reconfigure is successful, report the event
2744 * otherwise, close the stream.
2745 *
2746 * Returns void
2747 *
2748 ******************************************************************************/
bta_av_rcfg_cfm(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2749 void bta_av_rcfg_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2750 uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
2751
2752 APPL_TRACE_DEBUG("%s: err_code = %d", __func__, err_code);
2753
2754 // Disable AVDTP RECONFIGURE for rejectlisted devices
2755 bool disable_avdtp_reconfigure = false;
2756 {
2757 char remote_name[BTM_MAX_REM_BD_NAME_LEN] = "";
2758 if (btif_storage_get_stored_remote_name(p_scb->PeerAddress(),
2759 remote_name)) {
2760 if (interop_match_name(INTEROP_DISABLE_AVDTP_RECONFIGURE, remote_name) ||
2761 interop_match_addr(INTEROP_DISABLE_AVDTP_RECONFIGURE,
2762 (const RawAddress*)&p_scb->PeerAddress())) {
2763 LOG_INFO(
2764 "%s: disable AVDTP RECONFIGURE: interop matched "
2765 "name %s address %s",
2766 __func__, remote_name, p_scb->PeerAddress().ToString().c_str());
2767 disable_avdtp_reconfigure = true;
2768 }
2769 }
2770 }
2771
2772 if ((err_code != 0) || disable_avdtp_reconfigure) {
2773 APPL_TRACE_ERROR("%s: reconfig rejected, try close", __func__);
2774 /* Disable reconfiguration feature only with explicit rejection(not with
2775 * timeout) */
2776 if ((err_code != AVDT_ERR_TIMEOUT) || disable_avdtp_reconfigure) {
2777 p_scb->recfg_sup = false;
2778 }
2779 /* started flag is false when reconfigure command is sent */
2780 /* drop the buffers queued in L2CAP */
2781 L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2782 AVDT_CloseReq(p_scb->avdt_handle);
2783 } else {
2784 /* update the codec info after rcfg cfm */
2785 APPL_TRACE_DEBUG(
2786 "%s: updating from codec %s to codec %s", __func__,
2787 A2DP_CodecName(p_scb->cfg.codec_info),
2788 A2DP_CodecName(p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info));
2789 memcpy(p_scb->cfg.codec_info,
2790 p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info, AVDT_CODEC_SIZE);
2791 /* take the SSM back to OPEN state */
2792 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2793 }
2794 }
2795
2796 /*******************************************************************************
2797 *
2798 * Function bta_av_rcfg_open
2799 *
2800 * Description AVDT is connected. open the stream with the new
2801 * configuration
2802 *
2803 * Returns void
2804 *
2805 ******************************************************************************/
bta_av_rcfg_open(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2806 void bta_av_rcfg_open(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2807 APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x num_disc_snks:%d", __func__,
2808 p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
2809 p_scb->num_disc_snks);
2810
2811 if (p_scb->num_disc_snks == 0) {
2812 /* Need to update call-out module so that it will be ready for discover */
2813 p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
2814
2815 /* send avdtp discover request */
2816 AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
2817 BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
2818 } else {
2819 APPL_TRACE_DEBUG("%s: calling AVDT_OpenReq()", __func__);
2820 APPL_TRACE_DEBUG("%s: codec: %s", __func__,
2821 A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
2822
2823 /* we may choose to use a different SEP at reconfig.
2824 * adjust the sep_idx now */
2825 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2826 LOG_INFO("%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
2827 p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
2828
2829 /* open the stream with the new config */
2830 p_scb->sep_info_idx = p_scb->rcfg_idx;
2831 AVDT_OpenReq(p_scb->avdt_handle, p_scb->PeerAddress(), p_scb->hdi,
2832 p_scb->sep_info[p_scb->sep_info_idx].seid, &p_scb->cfg);
2833 }
2834 }
2835
2836 /*******************************************************************************
2837 *
2838 * Function bta_av_security_rej
2839 *
2840 * Description Send an AVDTP security reject.
2841 *
2842 * Returns void
2843 *
2844 ******************************************************************************/
bta_av_security_rej(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2845 void bta_av_security_rej(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
2846 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2847 NULL, 0);
2848 }
2849
2850 /*******************************************************************************
2851 *
2852 * Function bta_av_chk_2nd_start
2853 *
2854 * Description check if this is 2nd stream and if it needs to be started.
2855 * This function needs to be kept very similar to
2856 * bta_av_chk_start
2857 *
2858 * Returns void
2859 *
2860 ******************************************************************************/
bta_av_chk_2nd_start(tBTA_AV_SCB * p_scb,UNUSED_ATTR tBTA_AV_DATA * p_data)2861 void bta_av_chk_2nd_start(tBTA_AV_SCB* p_scb,
2862 UNUSED_ATTR tBTA_AV_DATA* p_data) {
2863 LOG_INFO(
2864 "%s: peer %s channel:%d bta_av_cb.audio_open_cnt:%d role:0x%x "
2865 "features:0x%x",
2866 __func__, p_scb->PeerAddress().ToString().c_str(), p_scb->chnl,
2867 bta_av_cb.audio_open_cnt, p_scb->role, bta_av_cb.features);
2868
2869 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2) &&
2870 (((p_scb->role & BTA_AV_ROLE_AD_ACP) == 0) || // Outgoing connection or
2871 (bta_av_cb.features & BTA_AV_FEAT_ACP_START))) { // Auto-starting option
2872 // More than one audio channel is connected.
2873 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) {
2874 // This channel does not need to be reconfigured.
2875 // If there is other channel streaming, start the stream now.
2876 bool new_started = false;
2877 for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
2878 tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i];
2879 if (p_scb == p_scbi) {
2880 continue;
2881 }
2882 if (p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) {
2883 if (!new_started) {
2884 // Start the new stream
2885 new_started = true;
2886 LOG_INFO(
2887 "%s: starting new stream for peer %s because peer %s "
2888 "already started",
2889 __func__, p_scb->PeerAddress().ToString().c_str(),
2890 p_scbi->PeerAddress().ToString().c_str());
2891 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2892 }
2893 // May need to update the flush timeout of this already started stream
2894 if (p_scbi->co_started != bta_av_cb.audio_open_cnt) {
2895 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2896 }
2897 }
2898 }
2899 }
2900 }
2901 }
2902
2903 /*******************************************************************************
2904 *
2905 * Function bta_av_open_rc
2906 *
2907 * Description Send a message to main SM to open RC channel.
2908 *
2909 * Returns void
2910 *
2911 ******************************************************************************/
bta_av_open_rc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2912 void bta_av_open_rc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2913 APPL_TRACE_DEBUG("%s: use_rc: %d, wait: 0x%x role: 0x%x", __func__,
2914 p_scb->use_rc, p_scb->wait, p_scb->role);
2915 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) &&
2916 (p_scb->q_tag == BTA_AV_Q_TAG_START)) {
2917 /* waiting for role switch for some reason & the timer expires */
2918 if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT)) {
2919 APPL_TRACE_ERROR(
2920 "%s: failed to start streaming for role management reasons!!",
2921 __func__);
2922 alarm_cancel(p_scb->avrc_ct_timer);
2923
2924 tBTA_AV_START start;
2925 start.chnl = p_scb->chnl;
2926 start.status = BTA_AV_FAIL_ROLE;
2927 start.initiator = true;
2928 start.hndl = p_scb->hndl;
2929 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2930 bta_av_cb.rs_idx = 0;
2931 tBTA_AV bta_av_data;
2932 bta_av_data.start = start;
2933 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
2934 } else {
2935 /* role switch is done. continue to start streaming */
2936 bta_av_cb.rs_idx = 0;
2937 p_data->hdr.offset = BTA_AV_RS_OK;
2938 bta_av_start_ok(p_scb, p_data);
2939 }
2940 return;
2941 }
2942
2943 if (p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP)) {
2944 if (bta_av_cb.disc) {
2945 /* AVRC discover db is in use */
2946 if (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) {
2947 /* AVRC channel is not connected. delay a little bit */
2948 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
2949 bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
2950 BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
2951 } else {
2952 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
2953 }
2954 }
2955 } else {
2956 /* use main SM for AVRC SDP activities */
2957 if (is_new_avrcp_enabled()) {
2958 APPL_TRACE_WARNING("%s: Using the new AVRCP Profile", __func__);
2959 bluetooth::avrcp::AvrcpService::Get()->ConnectDevice(
2960 p_scb->PeerAddress());
2961 } else {
2962 bta_av_rc_disc((uint8_t)(p_scb->hdi + 1));
2963 }
2964 }
2965 } else {
2966 if (BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) {
2967 /* the open API said that this handle does not want a RC connection.
2968 * disconnect it now */
2969 AVRC_Close(p_scb->rc_handle);
2970 }
2971 }
2972 }
2973
2974 /*******************************************************************************
2975 *
2976 * Function bta_av_open_at_inc
2977 *
2978 * Description This function is called if API open is called by application
2979 * while state-machine is at incoming state.
2980 *
2981 * Returns void
2982 *
2983 ******************************************************************************/
bta_av_open_at_inc(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)2984 void bta_av_open_at_inc(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
2985 memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
2986
2987 APPL_TRACE_DEBUG("%s: peer %s coll_mask=0x%02x", __func__,
2988 p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
2989
2990 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
2991 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
2992
2993 /* API open will be handled at timeout if SNK did not start signalling. */
2994 /* API open will be ignored if SNK starts signalling. */
2995 } else {
2996 /* SNK did not start signalling, API was called N seconds timeout. */
2997 /* We need to switch to INIT state and start opening connection. */
2998 p_scb->coll_mask = 0;
2999 bta_av_set_scb_sst_init(p_scb);
3000
3001 tBTA_AV_API_OPEN* p_buf =
3002 (tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
3003 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
3004 bta_sys_sendmsg(p_buf);
3005 }
3006 }
3007
offload_vendor_callback(tBTM_VSC_CMPL * param)3008 void offload_vendor_callback(tBTM_VSC_CMPL* param) {
3009 tBTA_AV value{0};
3010 uint8_t sub_opcode = 0;
3011 if (param->param_len) {
3012 APPL_TRACE_DEBUG("%s: param_len = %d status = %d", __func__,
3013 param->param_len, param->p_param_buf[0]);
3014 value.status = static_cast<tBTA_AV_STATUS>(param->p_param_buf[0]);
3015 }
3016 if (value.status == 0) {
3017 sub_opcode = param->p_param_buf[1];
3018 APPL_TRACE_DEBUG("%s: subopcode = %d", __func__, sub_opcode);
3019 switch (sub_opcode) {
3020 case VS_HCI_A2DP_OFFLOAD_STOP:
3021 APPL_TRACE_DEBUG("%s: VS_HCI_STOP_A2DP_MEDIA successful", __func__);
3022 break;
3023 case VS_HCI_A2DP_OFFLOAD_START:
3024 if (bta_av_cb.offload_start_pending_hndl) {
3025 APPL_TRACE_DEBUG("%s: VS_HCI_START_A2DP_MEDIA successful", __func__);
3026 bta_av_cb.offload_started_hndl = bta_av_cb.offload_start_pending_hndl;
3027 bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
3028 } else {
3029 LOG_INFO("%s: No pending start command due to AVDTP suspend immediately", __func__);
3030 }
3031 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3032 break;
3033 default:
3034 break;
3035 }
3036 } else {
3037 APPL_TRACE_DEBUG("%s: Offload failed for subopcode= %d", __func__,
3038 sub_opcode);
3039 if (param->opcode != VS_HCI_A2DP_OFFLOAD_STOP) {
3040 bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
3041 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &value);
3042 }
3043 }
3044 }
3045
bta_av_vendor_offload_start(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * offload_start)3046 void bta_av_vendor_offload_start(tBTA_AV_SCB* p_scb,
3047 tBT_A2DP_OFFLOAD* offload_start) {
3048 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3049 APPL_TRACE_DEBUG("%s", __func__);
3050
3051 uint8_t* p_param = param;
3052 *p_param++ = VS_HCI_A2DP_OFFLOAD_START;
3053
3054 UINT32_TO_STREAM(p_param, offload_start->codec_type);
3055 UINT16_TO_STREAM(p_param, offload_start->max_latency);
3056 ARRAY_TO_STREAM(p_param, offload_start->scms_t_enable,
3057 static_cast<int>(offload_start->scms_t_enable.size()));
3058 UINT32_TO_STREAM(p_param, offload_start->sample_rate);
3059 UINT8_TO_STREAM(p_param, offload_start->bits_per_sample);
3060 UINT8_TO_STREAM(p_param, offload_start->ch_mode);
3061 UINT32_TO_STREAM(p_param, offload_start->encoded_audio_bitrate);
3062 UINT16_TO_STREAM(p_param, offload_start->acl_hdl);
3063 UINT16_TO_STREAM(p_param, offload_start->l2c_rcid);
3064 UINT16_TO_STREAM(p_param, offload_start->mtu);
3065 ARRAY_TO_STREAM(p_param, offload_start->codec_info,
3066 (int8_t)sizeof(offload_start->codec_info));
3067 bta_av_cb.offload_start_pending_hndl = p_scb->hndl;
3068 LOG_INFO(
3069 "codec: %#x, sample rate: %#x, bit depth: %#x, channel: %#x, bitrate: "
3070 "%#x, ACL: %#x, L2CAP: %#x, MTU: %#x",
3071 offload_start->codec_type, offload_start->sample_rate,
3072 offload_start->bits_per_sample, offload_start->ch_mode,
3073 offload_start->encoded_audio_bitrate, offload_start->acl_hdl,
3074 offload_start->l2c_rcid, offload_start->mtu);
3075 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP, p_param - param,
3076 param, offload_vendor_callback);
3077 }
3078
bta_av_vendor_offload_stop()3079 void bta_av_vendor_offload_stop() {
3080 uint8_t param[sizeof(tBT_A2DP_OFFLOAD)];
3081 APPL_TRACE_DEBUG("%s", __func__);
3082 param[0] = VS_HCI_A2DP_OFFLOAD_STOP;
3083 BTM_VendorSpecificCommand(HCI_CONTROLLER_A2DP, 1, param,
3084 offload_vendor_callback);
3085 }
3086 /*******************************************************************************
3087 *
3088 * Function bta_av_offload_req
3089 *
3090 * Description This function is called if application requests offload of
3091 * a2dp audio.
3092 *
3093 * Returns void
3094 *
3095 ******************************************************************************/
bta_av_offload_req(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3096 void bta_av_offload_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3097 tBTA_AV_STATUS status = BTA_AV_FAIL_RESOURCES;
3098
3099 tBT_A2DP_OFFLOAD offload_start;
3100 APPL_TRACE_DEBUG("%s: stream %s, audio channels open %d", __func__,
3101 p_scb->started ? "STARTED" : "STOPPED",
3102 bta_av_cb.audio_open_cnt);
3103 /* Check if stream has already been started. */
3104 /* Support offload if only one audio source stream is open. */
3105 if (p_scb->started != true) {
3106 status = BTA_AV_FAIL_STREAM;
3107 } else if (bta_av_cb.offload_start_pending_hndl ||
3108 bta_av_cb.offload_started_hndl) {
3109 APPL_TRACE_WARNING("%s: offload already started, ignore request", __func__);
3110 return;
3111 } else {
3112 bta_av_offload_codec_builder(p_scb, &offload_start);
3113 bta_av_vendor_offload_start(p_scb, &offload_start);
3114 return;
3115 }
3116 if (status != BTA_AV_SUCCESS) {
3117 tBTA_AV bta_av_data;
3118 bta_av_data.status = status;
3119 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3120 }
3121 /* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
3122 else if (bta_av_cb.audio_open_cnt == 1 &&
3123 p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC &&
3124 p_scb->chnl == BTA_AV_CHNL_AUDIO) {
3125 bt_vendor_op_a2dp_offload_t a2dp_offload_start;
3126
3127 if (L2CA_GetConnectionConfig(
3128 p_scb->l2c_cid, &a2dp_offload_start.acl_data_size,
3129 &a2dp_offload_start.remote_cid, &a2dp_offload_start.lm_handle)) {
3130 APPL_TRACE_DEBUG("%s: l2cmtu %d lcid 0x%02X rcid 0x%02X lm_handle
3131 0x%02X",
3132 __func__, a2dp_offload_start.acl_data_size,
3133 p_scb->l2c_cid, a2dp_offload_start.remote_cid,
3134 a2dp_offload_start.lm_handle);
3135
3136 a2dp_offload_start.bta_av_handle = p_scb->hndl;
3137 a2dp_offload_start.xmit_quota = BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA;
3138 a2dp_offload_start.stream_mtu = p_scb->stream_mtu;
3139 a2dp_offload_start.local_cid = p_scb->l2c_cid;
3140 a2dp_offload_start.is_flushable = true;
3141 a2dp_offload_start.stream_source =
3142 ((uint32_t)(p_scb->cfg.codec_info[1] | p_scb->cfg.codec_info[2]));
3143
3144 memcpy(a2dp_offload_start.codec_info, p_scb->cfg.codec_info,
3145 sizeof(a2dp_offload_start.codec_info));
3146
3147 if (!vendor_get_interface()->send_command(
3148 (vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_START,
3149 &a2dp_offload_start)) {
3150 status = BTA_AV_SUCCESS;
3151 p_scb->offload_start_pending = true;
3152 }
3153 }
3154 }
3155 */
3156 }
3157
3158 /*******************************************************************************
3159 *
3160 * Function bta_av_offload_rsp
3161 *
3162 * Description This function is called when the vendor lib responds to
3163 * BT_VND_OP_A2DP_OFFLOAD_START.
3164 *
3165 * Returns void
3166 *
3167 ******************************************************************************/
bta_av_offload_rsp(tBTA_AV_SCB * p_scb,tBTA_AV_DATA * p_data)3168 void bta_av_offload_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
3169 tBTA_AV_STATUS status = p_data->api_status_rsp.status;
3170
3171 APPL_TRACE_DEBUG("%s: stream %s status %s", __func__,
3172 p_scb->started ? "STARTED" : "STOPPED",
3173 status ? "FAIL" : "SUCCESS");
3174
3175 /* Check if stream has already been started. */
3176 if (status == BTA_AV_SUCCESS && p_scb->started != true) {
3177 status = BTA_AV_FAIL_STREAM;
3178 }
3179
3180 bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
3181 tBTA_AV bta_av_data;
3182 bta_av_data.status = status;
3183 (*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
3184 }
3185
bta_av_offload_codec_builder(tBTA_AV_SCB * p_scb,tBT_A2DP_OFFLOAD * p_a2dp_offload)3186 static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
3187 tBT_A2DP_OFFLOAD* p_a2dp_offload) {
3188 A2dpCodecConfig* CodecConfig = bta_av_get_a2dp_current_codec();
3189 btav_a2dp_codec_index_t codec_index =
3190 A2DP_SourceCodecIndex(p_scb->cfg.codec_info);
3191 uint32_t codec_type = 0;
3192 uint16_t mtu = p_scb->stream_mtu;
3193 APPL_TRACE_DEBUG("%s:codec_index = %d", __func__, codec_index);
3194 switch (codec_index) {
3195 case BTAV_A2DP_CODEC_INDEX_SOURCE_SBC:
3196 codec_type = BTA_AV_CODEC_TYPE_SBC;
3197 if (A2DP_GetMaxBitpoolSbc(p_scb->cfg.codec_info) <=
3198 A2DP_SBC_BITPOOL_MIDDLE_QUALITY) {
3199 APPL_TRACE_WARNING("%s: Restricting streaming MTU size for MQ Bitpool",
3200 __func__);
3201 mtu = MAX_2MBPS_AVDTP_MTU;
3202 }
3203 break;
3204 case BTAV_A2DP_CODEC_INDEX_SOURCE_AAC:
3205 codec_type = BTA_AV_CODEC_TYPE_AAC;
3206 break;
3207 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX:
3208 codec_type = BTA_AV_CODEC_TYPE_APTX;
3209 break;
3210 case BTAV_A2DP_CODEC_INDEX_SOURCE_APTX_HD:
3211 codec_type = BTA_AV_CODEC_TYPE_APTXHD;
3212 break;
3213 case BTAV_A2DP_CODEC_INDEX_SOURCE_LDAC:
3214 codec_type = BTA_AV_CODEC_TYPE_LDAC;
3215 break;
3216 case BTAV_A2DP_CODEC_INDEX_SOURCE_OPUS:
3217 codec_type = BTA_AV_CODEC_TYPE_OPUS;
3218 break;
3219 default:
3220 APPL_TRACE_ERROR("%s: Unknown Codec type ", __func__);
3221 return;
3222 }
3223 if (mtu > MAX_3MBPS_AVDTP_MTU) mtu = MAX_3MBPS_AVDTP_MTU;
3224 p_a2dp_offload->codec_type = codec_type;
3225 p_a2dp_offload->max_latency = 0;
3226 p_a2dp_offload->mtu = mtu;
3227 p_a2dp_offload->acl_hdl =
3228 get_btm_client_interface().lifecycle.BTM_GetHCIConnHandle(
3229 p_scb->PeerAddress(), BT_TRANSPORT_BR_EDR);
3230 btav_a2dp_scmst_info_t scmst_info =
3231 p_scb->p_cos->get_scmst_info(p_scb->PeerAddress());
3232 p_a2dp_offload->scms_t_enable[0] = scmst_info.enable_status;
3233 p_a2dp_offload->scms_t_enable[1] = scmst_info.cp_header;
3234 APPL_TRACE_DEBUG(
3235 "%s: SCMS-T_enable status: %d, "
3236 "SCMS-T header (if it's enabled): 0x%02x",
3237 __func__, scmst_info.enable_status, scmst_info.cp_header);
3238
3239 switch (A2DP_GetTrackSampleRate(p_scb->cfg.codec_info)) {
3240 case 44100:
3241 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_44100;
3242 break;
3243 case 48000:
3244 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_48000;
3245 break;
3246 case 88200:
3247 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_88200;
3248 break;
3249 case 96000:
3250 p_a2dp_offload->sample_rate = BTAV_A2DP_CODEC_SAMPLE_RATE_96000;
3251 break;
3252 }
3253 if (L2CA_GetRemoteCid(p_scb->l2c_cid, &p_a2dp_offload->l2c_rcid) == false) {
3254 APPL_TRACE_ERROR("%s: Failed to fetch l2c rcid", __func__);
3255 return;
3256 }
3257 switch (CodecConfig->getAudioBitsPerSample()) {
3258 case 16:
3259 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_16;
3260 break;
3261 case 24:
3262 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_24;
3263 break;
3264 case 32:
3265 p_a2dp_offload->bits_per_sample = BTAV_A2DP_CODEC_BITS_PER_SAMPLE_32;
3266 break;
3267 }
3268 p_a2dp_offload->ch_mode = A2DP_GetTrackChannelCount(p_scb->cfg.codec_info);
3269 p_a2dp_offload->encoded_audio_bitrate = CodecConfig->getTrackBitRate();
3270 if (!CodecConfig->getCodecSpecificConfig(p_a2dp_offload)) {
3271 APPL_TRACE_ERROR("%s: not a valid codec info", __func__);
3272 }
3273 }
3274