1 /******************************************************************************
3 * Copyright (C) 2004-2012 Broadcom Corporation
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 ******************************************************************************/
19 /******************************************************************************
21 * This file contains action functions for advanced audio/video stream
22 * state machine. these functions are shared by both audio and video
25 ******************************************************************************/
27 #include "bt_target.h"
28 #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
30 // #include <assert.h>
34 // #include <cutils/properties.h>
36 #include "bta_av_int.h"
41 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
42 #include "bta_ar_api.h"
45 /*****************************************************************************
47 *****************************************************************************/
49 /* the delay time in milliseconds to start service discovery on AVRCP */
50 #ifndef BTA_AV_RC_DISC_TIME_VAL
51 #define BTA_AV_RC_DISC_TIME_VAL 3500
54 /* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */
55 #ifndef BTA_AV_CLOSE_REQ_TIME_VAL
56 #define BTA_AV_CLOSE_REQ_TIME_VAL 4000
59 /* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */
60 #ifndef BTA_AV_RECONFIG_RETRY
61 #define BTA_AV_RECONFIG_RETRY 6
64 static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data);
66 /* state machine states */
78 /* the call out functions for audio stream */
79 /* const tBTA_AV_CO_FUNCTS bta_av_a2d_cos =
82 bta_av_co_audio_disc_res,
83 bta_av_co_audio_getconfig,
84 bta_av_co_audio_setconfig,
86 bta_av_co_audio_close,
87 bta_av_co_audio_start,
89 bta_av_co_audio_src_data_path,
93 tBTA_AV_CO_FUNCTS *p_bta_av_a2d_cos = NULL;
97 /* ssm action functions for audio stream */
98 const tBTA_AV_SACT bta_av_a2d_action[] =
100 bta_av_do_disc_a2d, /* BTA_AV_DO_DISC */
101 bta_av_cleanup, /* BTA_AV_CLEANUP */
102 bta_av_free_sdb, /* BTA_AV_FREE_SDB */
103 bta_av_config_ind, /* BTA_AV_CONFIG_IND */
104 bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */
105 bta_av_security_req, /* BTA_AV_SECURITY_REQ */
106 bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */
107 bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */
108 bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */
109 bta_av_str_opened, /* BTA_AV_STR_OPENED */
110 bta_av_security_ind, /* BTA_AV_SECURITY_IND */
111 bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */
112 bta_av_do_close, /* BTA_AV_DO_CLOSE */
113 bta_av_connect_req, /* BTA_AV_CONNECT_REQ */
114 bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */
115 bta_av_disc_results, /* BTA_AV_DISC_RESULTS */
116 bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
117 bta_av_open_failed, /* BTA_AV_OPEN_FAILED */
118 bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */
119 bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */
120 bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */
121 bta_av_conn_failed, /* BTA_AV_CONN_FAILED */
122 bta_av_do_start, /* BTA_AV_DO_START */
123 bta_av_str_stopped, /* BTA_AV_STR_STOPPED */
124 bta_av_reconfig, /* BTA_AV_RECONFIG */
125 bta_av_data_path, /* BTA_AV_DATA_PATH */
126 bta_av_start_ok, /* BTA_AV_START_OK */
127 bta_av_start_failed, /* BTA_AV_START_FAILED */
128 bta_av_str_closed, /* BTA_AV_STR_CLOSED */
129 bta_av_clr_cong, /* BTA_AV_CLR_CONG */
130 bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */
131 bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */
132 bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */
133 bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */
134 bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */
135 bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */
136 bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */
137 bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */
138 bta_av_security_rej, /* BTA_AV_SECURITY_REJ */
139 bta_av_open_rc, /* BTA_AV_OPEN_RC */
140 bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */
141 bta_av_save_caps, /* BTA_AV_SAVE_CAPS */
142 bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */
143 bta_av_cco_close, /* BTA_AV_CCO_CLOSE */
144 bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */
145 bta_av_role_res, /* BTA_AV_ROLE_RES */
146 bta_av_delay_co, /* BTA_AV_DELAY_CO */
147 bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */
151 /* these tables translate AVDT events to SSM events */
152 static const UINT16 bta_av_stream_evt_ok[] = {
153 BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
154 BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
155 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
156 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
157 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
158 BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
159 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
160 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
161 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
162 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
163 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
164 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
165 0, /* AVDT_RECONFIG_IND_EVT */
166 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
167 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
168 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
169 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
170 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
171 #if (AVDT_REPORTING == TRUE)
172 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
173 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
175 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
176 0 /* AVDT_DELAY_REPORT_CFM_EVT */
179 static const UINT16 bta_av_stream_evt_fail[] = {
180 BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
181 BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
182 BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
183 BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
184 BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
185 BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
186 BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
187 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
188 BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
189 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
190 BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
191 BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
192 0, /* AVDT_RECONFIG_IND_EVT */
193 BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
194 BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
195 BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
196 BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
197 BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
198 #if (AVDT_REPORTING == TRUE)
199 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
200 BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
202 BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
203 0 /* AVDT_DELAY_REPORT_CFM_EVT */
206 void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt);
207 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
208 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
209 #if BTA_AV_NUM_STRS > 2
210 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
212 #if BTA_AV_NUM_STRS > 3
213 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
215 #if BTA_AV_NUM_STRS > 4
216 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
218 #if BTA_AV_NUM_STRS > 5
219 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data);
221 /* the array of callback functions to receive events from AVDT control channel */
222 tAVDT_CTRL_CBACK * const bta_av_dt_cback[] =
225 ,bta_av_stream1_cback
226 #if BTA_AV_NUM_STRS > 2
227 ,bta_av_stream2_cback
229 #if BTA_AV_NUM_STRS > 3
230 ,bta_av_stream3_cback
232 #if BTA_AV_NUM_STRS > 4
233 ,bta_av_stream4_cback
235 #if BTA_AV_NUM_STRS > 5
236 ,bta_av_stream5_cback
239 /***********************************************
241 ** Function bta_get_scb_handle
243 ** Description gives the registered AVDT handle.by checking with sep_type.
247 ***********************************************/
248 static UINT8 bta_av_get_scb_handle(tBTA_AV_SCB *p_scb, UINT8 local_sep)
251 for (xx = 0; xx<BTA_AV_MAX_SEPS; xx++)
253 if ((p_scb->seps[xx].tsep == local_sep) &&
254 (p_scb->seps[xx].codec_type == p_scb->codec_type))
255 return (p_scb->seps[xx].av_handle);
257 APPL_TRACE_DEBUG(" bta_av_get_scb_handle appropiate sep_type not found")
258 return 0; /* return invalid handle */
261 /***********************************************
263 ** Function bta_av_get_scb_sep_type
265 ** Description gives the sep type by cross-checking with AVDT handle
269 ***********************************************/
270 static UINT8 bta_av_get_scb_sep_type(tBTA_AV_SCB *p_scb, UINT8 tavdt_handle)
273 for (xx = 0; xx<BTA_AV_MAX_SEPS; xx++)
275 if (p_scb->seps[xx].av_handle == tavdt_handle)
276 return (p_scb->seps[xx].tsep);
278 APPL_TRACE_DEBUG(" bta_av_get_scb_sep_type appropiate handle not found")
279 return 3; /* return invalid sep type */
282 /*******************************************************************************
284 ** Function bta_av_save_addr
286 ** Description copy the bd_addr and maybe reset the supported flags
291 *******************************************************************************/
292 static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b)
294 APPL_TRACE_DEBUG("bta_av_save_addr r:%d, s:%d",
295 p_scb->recfg_sup, p_scb->suspend_sup);
296 if(bdcmp(p_scb->peer_addr, b) != 0)
298 APPL_TRACE_ERROR("reset flags");
299 /* a new addr, reset the supported flags */
300 p_scb->recfg_sup = TRUE;
301 p_scb->suspend_sup = TRUE;
304 /* do this copy anyway, just in case the first addr matches
305 * the control block one by accident */
306 bdcpy(p_scb->peer_addr, b);
309 /*******************************************************************************
311 ** Function notify_start_failed
313 ** Description notify up-layer AV start failed
318 *******************************************************************************/
319 static void notify_start_failed(tBTA_AV_SCB *p_scb)
322 /* if start failed, clear role */
323 p_scb->role &= ~BTA_AV_ROLE_START_INT;
324 start.chnl = p_scb->chnl;
325 start.status = BTA_AV_FAIL;
326 start.initiator = TRUE;
327 start.hndl = p_scb->hndl;
328 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
331 /*******************************************************************************
333 ** Function bta_av_st_rc_timer
335 ** Description start the AVRC timer if no RC connection & CT is supported &
337 ** as ACP (we do not really know if we want AVRC)
341 *******************************************************************************/
342 static void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
346 APPL_TRACE_DEBUG("bta_av_st_rc_timer rc_handle:%d, use_rc: %d",
347 p_scb->rc_handle, p_scb->use_rc);
348 /* for outgoing RC connection as INT/CT */
349 if( (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
350 /*(bta_av_cb.features & BTA_AV_FEAT_RCCT) &&*/
351 (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)) )
353 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0)
354 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
356 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
361 /*******************************************************************************
363 ** Function bta_av_next_getcap
365 ** Description The function gets the capabilities of the next available
366 ** stream found in the discovery results.
368 ** Returns TRUE if we sent request to AVDT, FALSE otherwise.
370 *******************************************************************************/
371 static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
374 tAVDT_GETCAP_REQ *p_req;
375 BOOLEAN sent_cmd = FALSE;
376 UINT16 uuid_int = p_scb->uuid_int;
377 UINT8 sep_requested = 0;
379 if(uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
380 sep_requested = AVDT_TSEP_SNK;
381 else if(uuid_int == UUID_SERVCLASS_AUDIO_SINK)
382 sep_requested = AVDT_TSEP_SRC;
384 for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++)
386 /* steam not in use, is a sink, and is the right media type (audio/video) */
387 if ((p_scb->sep_info[i].in_use == FALSE) &&
388 (p_scb->sep_info[i].tsep == sep_requested) &&
389 (p_scb->sep_info[i].media_type == p_scb->media_type))
391 p_scb->sep_info_idx = i;
393 /* we got a stream; get its capabilities */
394 if (p_scb->p_cap == NULL)
396 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG));
398 if (p_scb->p_cap == NULL)
403 if (p_scb->avdt_version >= AVDT_VERSION_SYNC)
405 p_req = AVDT_GetAllCapReq;
409 p_req = AVDT_GetCapReq;
411 (*p_req)(p_scb->peer_addr,
412 p_scb->sep_info[i].seid,
413 p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]);
419 /* if no streams available then stream open fails */
422 bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
429 /*******************************************************************************
431 ** Function bta_av_proc_stream_evt
433 ** Description Utility function to compose stream events.
437 *******************************************************************************/
438 static void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index)
440 tBTA_AV_STR_MSG *p_msg;
442 tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index];
447 if (event == AVDT_SECURITY_IND_EVT)
449 sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ?
450 p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN;
452 else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0)
454 sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ?
455 p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN;
459 if (p_scb && (p_msg = (tBTA_AV_STR_MSG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_STR_MSG) + sec_len))) != NULL)
462 /* copy event data, bd addr, and handle to event message buffer */
463 p_msg->hdr.offset = 0;
467 bdcpy(p_msg->bd_addr, bd_addr);
468 APPL_TRACE_DEBUG(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
469 bd_addr[0], bd_addr[1],
470 bd_addr[2], bd_addr[3],
471 bd_addr[4], bd_addr[5]);
476 memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL));
477 /* copy config params to event message buffer */
480 case AVDT_RECONFIG_CFM_EVT:
481 APPL_TRACE_DEBUG("reconfig cfm event codec info = 0x%06x-%06x-%06x-%02x",
482 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[0]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[1]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[2],
483 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[3]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[4]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[5],
484 (p_msg->msg.reconfig_cfm.p_cfg->codec_info[6]<<16)+(p_msg->msg.reconfig_cfm.p_cfg->codec_info[7]<<8)+p_msg->msg.reconfig_cfm.p_cfg->codec_info[8],
485 p_msg->msg.reconfig_cfm.p_cfg->codec_info[9]);
490 case AVDT_CONFIG_IND_EVT:
491 /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP.
492 * If we already have a signalling connection with the bd_addr and the streaming
493 * SST is at INIT state, change it to INCOMING state to handle the signalling
494 * from the 2nd SEP. */
495 if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb)))
497 bta_av_set_scb_sst_incoming (p_scb);
499 /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state.
500 * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to
501 * incoming which we do it above.
502 * We also have to set the old p_scb state to init to be used later */
503 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++)
505 if ((bta_av_cb.p_scb[xx]) && (xx != index))
507 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST)
509 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST;
510 bta_av_cb.p_scb[xx]->coll_mask = 0;
517 memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG));
520 case AVDT_SECURITY_IND_EVT:
521 p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1);
522 memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len);
525 case AVDT_SECURITY_CFM_EVT:
526 p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1);
527 if (p_data->hdr.err_code == 0)
529 memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len);
532 case AVDT_SUSPEND_IND_EVT:
533 p_msg->msg.hdr.err_code = 0;
541 p_msg->msg.hdr.err_code = 0;
543 /* look up application event */
544 if ((p_data == NULL) || (p_data->hdr.err_code == 0))
546 p_msg->hdr.event = bta_av_stream_evt_ok[event];
550 p_msg->hdr.event = bta_av_stream_evt_fail[event];
553 p_msg->initiator = FALSE;
554 if (event == AVDT_SUSPEND_CFM_EVT)
555 p_msg->initiator = TRUE;
557 APPL_TRACE_VERBOSE("hndl:x%x", p_scb->hndl);
558 p_msg->hdr.layer_specific = p_scb->hndl;
559 p_msg->handle = handle;
560 p_msg->avdt_event = event;
561 bta_sys_sendmsg(p_msg);
564 /* coverity[var_deref_model] */
565 /* false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event
566 * these 2 events always have associated p_data */
569 bta_av_conn_cback(handle, bd_addr, event, p_data);
573 APPL_TRACE_ERROR("%s: p_data is null", __func__);
577 /*******************************************************************************
579 ** Function bta_av_stream_data_cback
581 ** Description This is the AVDTP callback function for stream events.
585 *******************************************************************************/
586 void bta_av_stream_data_cback(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt)
590 APPL_TRACE_DEBUG("bta_av_stream_data_cback avdt_handle: %d pkt_len=0x%x ofst = 0x%x", handle,p_pkt->len,p_pkt->offset);
591 APPL_TRACE_DEBUG(" Number of frames 0x%x",*((UINT8*)(p_pkt + 1) + p_pkt->offset));
592 APPL_TRACE_DEBUG("Sequence Number 0x%x",p_pkt->layer_specific);
593 /* Get SCB and correct sep type*/
594 for(index = 0; index < BTA_AV_NUM_STRS;index ++ )
596 p_scb = bta_av_cb.p_scb[index];
597 if((p_scb->avdt_handle == handle)&&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
600 if(index == BTA_AV_NUM_STRS) /* cannot find correct handler */
605 p_pkt->event = BTA_AV_MEDIA_DATA_EVT;
606 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
607 GKI_freebuf(p_pkt); /* a copy of packet had been delivered, we free this buffer */
610 /*******************************************************************************
612 ** Function bta_av_stream0_cback
614 ** Description This is the AVDTP callback function for stream events.
618 *******************************************************************************/
619 static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
621 APPL_TRACE_VERBOSE("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event);
622 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0);
625 /*******************************************************************************
627 ** Function bta_av_stream1_cback
629 ** Description This is the AVDTP callback function for stream events.
633 *******************************************************************************/
634 static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
636 APPL_TRACE_EVENT("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event);
637 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1);
640 #if BTA_AV_NUM_STRS > 2
641 /*******************************************************************************
643 ** Function bta_av_stream2_cback
645 ** Description This is the AVDTP callback function for stream events.
649 *******************************************************************************/
650 static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
652 APPL_TRACE_EVENT("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event);
653 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2);
657 #if BTA_AV_NUM_STRS > 3
658 /*******************************************************************************
660 ** Function bta_av_stream3_cback
662 ** Description This is the AVDTP callback function for stream events.
666 *******************************************************************************/
667 static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
669 APPL_TRACE_EVENT("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event);
670 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3);
674 /*******************************************************************************
676 ** Function bta_av_stream4_cback
678 ** Description This is the AVDTP callback function for stream events.
682 *******************************************************************************/
683 #if BTA_AV_NUM_STRS > 4
684 static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
686 APPL_TRACE_EVENT("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event);
687 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4);
691 /*******************************************************************************
693 ** Function bta_av_stream5_cback
695 ** Description This is the AVDTP callback function for stream events.
699 *******************************************************************************/
700 #if BTA_AV_NUM_STRS > 5
701 static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
703 APPL_TRACE_EVENT("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event);
704 bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5);
708 /*******************************************************************************
710 ** Function bta_av_a2d_sdp_cback
712 ** Description A2DP service discovery callback.
716 *******************************************************************************/
717 static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service)
719 tBTA_AV_SDP_RES *p_msg;
722 if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL)
724 p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT;
726 p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
729 if (found && (p_service != NULL))
730 p_scb->avdt_version = p_service->avdt_version;
732 p_scb->avdt_version = 0x00;
734 p_msg->hdr.layer_specific = bta_av_cb.handle;
735 bta_sys_sendmsg(p_msg);
739 APPL_TRACE_ERROR ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle);
744 /*******************************************************************************
746 ** Function bta_av_adjust_seps_idx
748 ** Description adjust the sep_idx
752 *******************************************************************************/
753 static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb, UINT8 avdt_handle)
756 APPL_TRACE_DEBUG("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type);
757 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
759 APPL_TRACE_DEBUG("av_handle: %d codec_type: %d",
760 p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type);
761 if((p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type)
762 && (p_scb->seps[xx].av_handle == avdt_handle))
765 p_scb->avdt_handle = p_scb->seps[xx].av_handle;
771 /*******************************************************************************
773 ** Function bta_av_switch_role
775 ** Description Switch role was not started and a timer was started.
776 ** another attempt to switch role now - still opening.
780 *******************************************************************************/
781 void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
783 tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
784 tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open;
787 APPL_TRACE_DEBUG("bta_av_switch_role wait:x%x", p_scb->wait);
788 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
789 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
791 /* clear the masks set when the timer is started */
792 p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START);
794 if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
796 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
798 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
802 /* this should not happen in theory. Just in case...
803 * continue to do_disc_a2d */
804 switch_res = BTA_AV_RS_DONE;
809 /* report failure on OPEN */
810 switch_res = BTA_AV_RS_FAIL;
813 if (switch_res != BTA_AV_RS_NONE)
815 if (bta_av_cb.rs_idx == (p_scb->hdi + 1))
817 bta_av_cb.rs_idx = 0;
819 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
821 p_buf->switch_res = switch_res;
822 bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf);
826 /*******************************************************************************
828 ** Function bta_av_role_res
830 ** Description Handle the role changed event
835 *******************************************************************************/
836 void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
838 BOOLEAN initiator = FALSE;
840 tBTA_AV_OPEN av_open;
842 APPL_TRACE_DEBUG("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role);
843 if (p_scb->role & BTA_AV_ROLE_START_INT)
846 if (p_scb->q_tag == BTA_AV_Q_TAG_START)
848 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED)
850 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
851 if (p_data->role_res.hci_status != HCI_SUCCESS)
853 p_scb->role &= ~BTA_AV_ROLE_START_INT;
854 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
855 /* start failed because of role switch. */
856 start.chnl = p_scb->chnl;
857 start.status = BTA_AV_FAIL_ROLE;
858 start.hndl = p_scb->hndl;
859 start.initiator = initiator;
860 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
864 bta_av_start_ok(p_scb, p_data);
867 else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
868 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
870 else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN)
872 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN)
874 p_scb->role &= ~BTA_AV_ROLE_START_INT;
875 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
877 if (p_data->role_res.hci_status != HCI_SUCCESS)
879 /* Open failed because of role switch. */
880 bdcpy(av_open.bd_addr, p_scb->peer_addr);
881 av_open.chnl = p_scb->chnl;
882 av_open.hndl = p_scb->hndl;
883 start.status = BTA_AV_FAIL_ROLE;
884 if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
885 av_open.sep = AVDT_TSEP_SNK;
886 else if(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
887 av_open.sep = AVDT_TSEP_SRC;
888 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open);
892 /* Continue av open process */
893 p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
894 bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open));
899 APPL_TRACE_WARNING ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait);
903 APPL_TRACE_DEBUG("wait:x%x, role:x%x", p_scb->wait, p_scb->role);
906 /*******************************************************************************
908 ** Function bta_av_delay_co
910 ** Description Call the delay call-out function to report the delay report
915 *******************************************************************************/
916 void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
918 p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay);
921 /*******************************************************************************
923 ** Function bta_av_do_disc_a2d
925 ** Description Do service discovery for A2DP.
929 *******************************************************************************/
930 void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
932 BOOLEAN ok_continue = FALSE;
933 tA2D_SDP_DB_PARAMS db_params;
934 UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
935 ATTR_ID_PROTOCOL_DESC_LIST,
936 ATTR_ID_BT_PROFILE_DESC_LIST};
937 UINT16 sdp_uuid = 0; /* UUID for which SDP has to be done */
939 APPL_TRACE_DEBUG("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d",
940 p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt);
942 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
944 switch(p_data->api_open.switch_res)
947 if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
949 /* waiting for role switch result. save the api to control block */
950 memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN));
951 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
952 p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
961 /* report a new failure event */
962 p_scb->open_status = BTA_AV_FAIL_ROLE;
963 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
967 p_data = (tBTA_AV_DATA *)&p_scb->q_info.open;
968 /* continue to open if link role is ok */
969 if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT))
975 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
984 APPL_TRACE_DEBUG("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag);
988 /* clear the role switch bits */
989 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
991 if (p_scb->wait & BTA_AV_WAIT_CHECK_RC)
993 p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
994 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
997 if (bta_av_cb.features & BTA_AV_FEAT_MASTER)
999 L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
1001 if (bta_av_cb.audio_open_cnt == 1)
1003 /* there's already an A2DP connection. do not allow switch */
1004 bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
1007 /* store peer addr other parameters */
1008 bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
1009 p_scb->sec_mask = p_data->api_open.sec_mask;
1010 p_scb->use_rc = p_data->api_open.use_rc;
1012 bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1014 /* allocate discovery database */
1015 if (p_scb->p_disc_db == NULL)
1017 p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE);
1020 /* only one A2D find service is active at a time */
1021 bta_av_cb.handle = p_scb->hndl;
1023 if(p_scb->p_disc_db)
1025 /* set up parameters */
1026 db_params.db_len = BTA_AV_DISC_BUF_SIZE;
1027 db_params.num_attr = 3;
1028 db_params.p_db = p_scb->p_disc_db;
1029 db_params.p_attrs = attr_list;
1030 p_scb->uuid_int = p_data->api_open.uuid;
1031 if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1032 sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
1033 else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1034 sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
1036 APPL_TRACE_DEBUG("uuid_int 0x%x, Doing SDP For 0x%x", p_scb->uuid_int, sdp_uuid);
1037 if(A2D_FindService(sdp_uuid, p_scb->peer_addr, &db_params,
1038 bta_av_a2d_sdp_cback) == A2D_SUCCESS)
1044 /* when the code reaches here, either the DB is NULL
1045 * or A2D_FindService is not successful */
1046 bta_av_a2d_sdp_cback(FALSE, NULL);
1049 /*******************************************************************************
1051 ** Function bta_av_cleanup
1053 ** Description cleanup AV stream control block.
1057 *******************************************************************************/
1058 void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1060 tBTA_AV_CONN_CHG msg;
1062 UINT8 role = BTA_AV_ROLE_AD_INT;
1065 APPL_TRACE_DEBUG("bta_av_cleanup");
1067 /* free any buffers */
1068 utl_freebuf((void **) &p_scb->p_cap);
1069 utl_freebuf((void **) &p_scb->p_disc_db);
1070 p_scb->avdt_version = 0;
1072 /* initialize some control block variables */
1073 p_scb->open_status = BTA_AV_SUCCESS;
1075 /* if de-registering shut everything down */
1076 msg.hdr.layer_specific = p_scb->hndl;
1077 p_scb->started = FALSE;
1078 p_scb->cong = FALSE;
1080 p_scb->cur_psc_mask = 0;
1082 p_scb->num_disc_snks = 0;
1083 bta_sys_stop_timer(&p_scb->timer);
1084 if (p_scb->deregistring)
1087 for(xx=0; xx<BTA_AV_MAX_SEPS; xx++)
1089 if(p_scb->seps[xx].av_handle)
1090 AVDT_RemoveStream(p_scb->seps[xx].av_handle);
1091 p_scb->seps[xx].av_handle = 0;
1094 bta_av_dereg_comp((tBTA_AV_DATA *) &msg);
1098 /* report stream closed to main SM */
1100 bdcpy(msg.peer_addr, p_scb->peer_addr);
1101 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1105 /*******************************************************************************
1107 ** Function bta_av_free_sdb
1109 ** Description Free service discovery db buffer.
1113 *******************************************************************************/
1114 void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1117 utl_freebuf((void **) &p_scb->p_disc_db);
1120 /*******************************************************************************
1122 ** Function bta_av_config_ind
1124 ** Description Handle a stream configuration indication from the peer.
1128 *******************************************************************************/
1129 void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1131 tBTA_AV_CI_SETCONFIG setconfig;
1132 tAVDT_SEP_INFO *p_info;
1133 tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg;
1134 UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
1135 UINT8 local_sep; /* sep type of local handle on which connection was received */
1136 tBTA_AV_STR_MSG *p_msg = (tBTA_AV_STR_MSG *)p_data;
1139 local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
1140 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1141 memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
1142 p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX];
1143 bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
1145 /* Clear collision mask */
1146 p_scb->coll_mask = 0;
1147 bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr);
1149 /* if no codec parameters in configuration, fail */
1150 if ((p_evt_cfg->num_codec == 0) ||
1151 /* or the peer requests for a service we do not support */
1152 ((psc_mask != p_scb->cfg.psc_mask) &&
1153 (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) )
1155 setconfig.hndl = p_scb->hndl; /* we may not need this */
1156 setconfig.err_code = AVDT_ERR_UNSUP_CFG;
1157 bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig);
1161 p_info = &p_scb->sep_info[0];
1163 p_info->media_type = p_scb->media_type;
1164 p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
1166 /* Sep type of Peer will be oppsite role to our local sep */
1167 if (local_sep == AVDT_TSEP_SRC)
1168 p_info->tsep = AVDT_TSEP_SNK;
1169 else if (local_sep == AVDT_TSEP_SNK)
1170 p_info->tsep = AVDT_TSEP_SRC;
1172 p_scb->role |= BTA_AV_ROLE_AD_ACP;
1173 p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
1174 if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
1175 p_scb->use_rc = TRUE;
1177 p_scb->use_rc = FALSE;
1179 p_scb->num_seps = 1;
1180 p_scb->sep_info_idx = 0;
1181 APPL_TRACE_DEBUG("bta_av_config_ind: SEID: %d use_rc: %d cur_psc_mask:0x%x", p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
1182 /* in case of A2DP SINK this is the first time peer data is being sent to co functions */
1183 if (local_sep == AVDT_TSEP_SNK)
1185 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1186 p_evt_cfg->codec_info,
1189 p_evt_cfg->num_protect,
1190 p_evt_cfg->protect_info,
1196 p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type,
1197 p_evt_cfg->codec_info,
1200 p_evt_cfg->num_protect,
1201 p_evt_cfg->protect_info,
1208 /*******************************************************************************
1210 ** Function bta_av_disconnect_req
1212 ** Description Disconnect AVDTP connection.
1216 *******************************************************************************/
1217 void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1222 APPL_TRACE_DEBUG("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb);
1224 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1225 bta_sys_stop_timer(&p_scb->timer);
1226 if(bta_av_cb.conn_lcb)
1228 p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1));
1230 bta_av_del_rc(p_rcb);
1231 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1235 bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
1239 /*******************************************************************************
1241 ** Function bta_av_security_req
1243 ** Description Send an AVDTP security request.
1247 *******************************************************************************/
1248 void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1250 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1252 AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
1253 p_data->api_protect_req.len);
1257 /*******************************************************************************
1259 ** Function bta_av_security_rsp
1261 ** Description Send an AVDTP security response.
1265 *******************************************************************************/
1266 void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1268 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1270 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code,
1271 p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len);
1275 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC,
1280 /*******************************************************************************
1282 ** Function bta_av_setconfig_rsp
1284 ** Description setconfig is OK
1288 *******************************************************************************/
1289 void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1291 UINT8 num = p_data->ci_setconfig.num_seid + 1;
1292 UINT8 avdt_handle = p_data->ci_setconfig.avdt_handle;
1293 UINT8 *p_seid = p_data->ci_setconfig.p_seid;
1297 /* we like this codec_type. find the sep_idx */
1298 local_sep = bta_av_get_scb_sep_type(p_scb,avdt_handle);
1299 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1300 APPL_TRACE_DEBUG("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask);
1302 if ((AVDT_TSEP_SNK == local_sep) && (p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
1303 (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL))
1304 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
1305 (tBTA_AV_MEDIA*)p_scb->cfg.codec_info);
1308 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code,
1309 p_data->ci_setconfig.category);
1311 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1313 if(p_data->ci_setconfig.err_code == AVDT_SUCCESS)
1315 p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
1316 if(p_data->ci_setconfig.recfg_needed)
1317 p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
1318 APPL_TRACE_DEBUG("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d",
1319 p_data->ci_setconfig.recfg_needed, p_scb->role, num);
1320 /* callout module tells BTA the number of "good" SEPs and their SEIDs.
1321 * getcap on these SEID */
1322 p_scb->num_seps = num;
1324 if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
1325 p_scb->avdt_version = AVDT_VERSION_SYNC;
1328 if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1)
1330 /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind.
1331 * call disc_res now */
1332 /* this is called in A2DP SRC path only, In case of SINK we don't need it */
1333 if (local_sep == AVDT_TSEP_SRC)
1334 p_scb->p_cos->disc_res(p_scb->hndl, num, num, 0, p_scb->peer_addr,
1335 UUID_SERVCLASS_AUDIO_SOURCE);
1339 /* we do not know the peer device and it is using non-SBC codec
1340 * we need to know all the SEPs on SNK */
1341 bta_av_discover_req(p_scb, NULL);
1345 for (i = 1; i < num; i++)
1347 APPL_TRACE_DEBUG("sep_info[%d] SEID: %d", i, p_seid[i-1]);
1348 /* initialize the sep_info[] to get capabilities */
1349 p_scb->sep_info[i].in_use = FALSE;
1350 p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
1351 p_scb->sep_info[i].media_type = p_scb->media_type;
1352 p_scb->sep_info[i].seid = p_seid[i-1];
1355 /* only in case of local sep as SRC we need to look for other SEPs, In case of SINK we don't */
1356 if (local_sep == AVDT_TSEP_SRC)
1358 /* Make sure UUID has been initialized... */
1359 if (p_scb->uuid_int == 0)
1360 p_scb->uuid_int = p_scb->open_api.uuid;
1361 bta_av_next_getcap(p_scb, p_data);
1366 /*******************************************************************************
1368 ** Function bta_av_str_opened
1370 ** Description Stream opened OK (incoming/outgoing).
1374 *******************************************************************************/
1375 void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1377 tBTA_AV_CONN_CHG msg;
1382 msg.hdr.layer_specific = p_scb->hndl;
1384 bdcpy(msg.peer_addr, p_scb->peer_addr);
1385 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
1386 bta_av_conn_chg((tBTA_AV_DATA *) &msg);
1387 /* set the congestion flag, so AV would not send media packets by accident */
1391 p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
1392 mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu);
1393 APPL_TRACE_DEBUG("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d",
1394 p_scb->l2c_cid, p_scb->stream_mtu, mtu);
1395 if(mtu == 0 || mtu > p_scb->stream_mtu)
1396 mtu = p_scb->stream_mtu;
1398 /* Set the media channel as medium priority */
1399 L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM);
1400 L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE);
1402 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
1403 memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
1405 p_scb->l2c_bufs = 0;
1406 p_scb->p_cos->open(p_scb->hndl,
1407 p_scb->codec_type, p_scb->cfg.codec_info, mtu);
1410 /* TODO check if other audio channel is open.
1411 * If yes, check if reconfig is needed
1412 * Rigt now we do not do this kind of checking.
1413 * BTA-AV is INT for 2nd audio connection.
1414 * The application needs to make sure the current codec_info is proper.
1415 * If one audio connection is open and another SNK attempts to connect to AV,
1416 * the connection will be rejected.
1418 /* check if other audio channel is started. If yes, start */
1419 bdcpy(open.bd_addr, p_scb->peer_addr);
1420 open.chnl = p_scb->chnl;
1421 open.hndl = p_scb->hndl;
1422 open.status = BTA_AV_SUCCESS;
1423 open.starting = bta_av_chk_start(p_scb);
1425 if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr)))
1427 if(HCI_EDR_ACL_2MPS_SUPPORTED(p))
1428 open.edr |= BTA_AV_EDR_2MBPS;
1429 if(HCI_EDR_ACL_3MPS_SUPPORTED(p))
1430 open.edr |= BTA_AV_EDR_3MBPS;
1432 #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
1433 bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr);
1435 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
1436 open.sep = AVDT_TSEP_SNK;
1437 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
1438 open.sep = AVDT_TSEP_SRC;
1440 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1443 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
1447 #if 0 /* TODO: implement the property enable/disable */
1448 // This code is used to pass PTS TC for AVDTP ABORT
1449 char value[PROPERTY_VALUE_MAX] = {0};
1450 if ((property_get("bluetooth.pts.force_a2dp_abort", value, "false"))
1451 && (!strcmp(value, "true")))
1453 APPL_TRACE_ERROR ("%s: Calling AVDT_AbortReq", __func__);
1454 AVDT_AbortReq(p_scb->avdt_handle);
1459 /*******************************************************************************
1461 ** Function bta_av_security_ind
1463 ** Description Handle an AVDTP security indication.
1467 *******************************************************************************/
1468 void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1470 tBTA_AV_PROTECT_REQ protect_req;
1472 p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
1474 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1476 protect_req.chnl = p_scb->chnl;
1477 protect_req.hndl = p_scb->hndl;
1479 APPL_TRACE_EVENT("sec ind handle: x%x", protect_req.hndl);
1481 protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
1482 protect_req.len = p_data->str_msg.msg.security_ind.len;
1484 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req);
1486 /* app doesn't support security indication; respond with failure */
1489 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0);
1493 /*******************************************************************************
1495 ** Function bta_av_security_cfm
1497 ** Description Handle an AVDTP security confirm.
1501 *******************************************************************************/
1502 void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1504 tBTA_AV_PROTECT_RSP protect_rsp;
1506 if (bta_av_cb.features & BTA_AV_FEAT_PROTECT)
1508 protect_rsp.chnl = p_scb->chnl;
1509 protect_rsp.hndl = p_scb->hndl;
1510 protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
1511 protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
1512 protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code;
1514 (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp);
1518 /*******************************************************************************
1520 ** Function bta_av_do_close
1522 ** Description Close stream.
1526 *******************************************************************************/
1527 void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1531 /* stop stream if started */
1532 if (p_scb->co_started)
1534 bta_av_str_stopped(p_scb, NULL);
1536 bta_sys_stop_timer(&bta_av_cb.sig_tmr);
1539 p_scb->started = FALSE;
1541 /* drop the buffers queued in L2CAP */
1542 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
1544 AVDT_CloseReq(p_scb->avdt_handle);
1545 /* just in case that the link is congested, link is flow controled by peer or
1546 * for whatever reason the the close request can not be sent in time.
1547 * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link
1549 bta_sys_start_timer(&p_scb->timer,
1550 (UINT16)BTA_AV_API_CLOSE_EVT,
1551 BTA_AV_CLOSE_REQ_TIME_VAL);
1555 /*******************************************************************************
1557 ** Function bta_av_connect_req
1559 ** Description Connect AVDTP connection.
1563 *******************************************************************************/
1564 void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1568 utl_freebuf((void **) &p_scb->p_disc_db);
1570 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
1572 /* SNK initiated L2C connection while SRC was doing SDP. */
1573 /* Wait until timeout to check if SNK starts signalling. */
1574 APPL_TRACE_EVENT("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask);
1578 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
1581 /*******************************************************************************
1583 ** Function bta_av_sdp_failed
1585 ** Description Service discovery failed.
1589 *******************************************************************************/
1590 void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1592 if (!p_scb->open_status)
1593 p_scb->open_status = BTA_AV_FAIL_SDP;
1595 utl_freebuf((void **) &p_scb->p_disc_db);
1596 bta_av_str_closed(p_scb, p_data);
1599 /*******************************************************************************
1601 ** Function bta_av_disc_results
1603 ** Description Handle the AVDTP discover results. Search through the
1604 ** results and find the first available stream, and get
1605 ** its capabilities.
1609 *******************************************************************************/
1610 void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1612 UINT8 num_snks = 0, num_srcs =0, i;
1613 /* our uuid in case we initiate connection */
1614 UINT16 uuid_int = p_scb->uuid_int;
1616 APPL_TRACE_DEBUG(" initiator UUID 0x%x", uuid_int);
1617 /* store number of stream endpoints returned */
1618 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1620 for (i = 0; i < p_scb->num_seps; i++)
1622 /* steam not in use, is a sink, and is audio */
1623 if ((p_scb->sep_info[i].in_use == FALSE) &&
1624 (p_scb->sep_info[i].media_type == p_scb->media_type))
1626 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1627 (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
1630 if((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
1631 (uuid_int == UUID_SERVCLASS_AUDIO_SINK))
1637 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, num_srcs, p_scb->peer_addr,
1639 p_scb->num_disc_snks = num_snks;
1640 p_scb->num_disc_srcs = num_srcs;
1643 if (p_scb->num_seps > 0)
1645 /* initialize index into discovery results */
1646 p_scb->sep_info_idx = 0;
1648 /* get the capabilities of the first available stream */
1649 bta_av_next_getcap(p_scb, p_data);
1651 /* else we got discover response but with no streams; we're done */
1654 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1658 /*******************************************************************************
1660 ** Function bta_av_disc_res_as_acp
1662 ** Description Handle the AVDTP discover results. Search through the
1663 ** results and find the first available stream, and get
1664 ** its capabilities.
1668 *******************************************************************************/
1669 void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1671 UINT8 num_snks = 0, i;
1673 /* store number of stream endpoints returned */
1674 p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
1678 for (i = 0; i < p_scb->num_seps; i++)
1680 /* steam is a sink, and is audio */
1681 if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
1682 (p_scb->sep_info[i].media_type == p_scb->media_type))
1684 p_scb->sep_info[i].in_use = FALSE;
1688 p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, 0, p_scb->peer_addr,
1689 UUID_SERVCLASS_AUDIO_SOURCE);
1690 p_scb->num_disc_snks = num_snks;
1691 p_scb->num_disc_srcs = 0;
1694 if (p_scb->num_seps > 0)
1696 /* initialize index into discovery results */
1697 p_scb->sep_info_idx = 0;
1699 /* get the capabilities of the first available stream */
1700 bta_av_next_getcap(p_scb, p_data);
1702 /* else we got discover response but with no streams; we're done */
1705 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
1709 /*******************************************************************************
1711 ** Function bta_av_save_caps
1713 ** Description report the SNK SEP capabilities to application
1717 *******************************************************************************/
1718 void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1721 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1722 UINT8 old_wait = p_scb->wait;
1723 BOOLEAN getcap_done = FALSE;
1725 APPL_TRACE_DEBUG("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x",
1726 p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
1727 memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG));
1728 /* let application know the capability of the SNK */
1729 p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX],
1730 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1731 &cfg.num_protect, cfg.protect_info);
1733 p_scb->sep_info_idx++;
1734 if(p_scb->num_seps > p_scb->sep_info_idx)
1736 /* Some devices have seps at the end of the discover list, which is not */
1737 /* matching media type(video not audio). */
1738 /* In this case, we are done with getcap without sending another */
1739 /* request to AVDT. */
1740 if (!bta_av_next_getcap(p_scb, p_data))
1748 /* we are done getting capabilities. restore the p_cb->sep_info_idx */
1749 p_scb->sep_info_idx = 0;
1750 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED);
1751 if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED)
1753 bta_av_start_ok (p_scb, NULL);
1758 /*******************************************************************************
1760 ** Function bta_av_set_use_rc
1762 ** Description set to use AVRC for this stream control block.
1766 *******************************************************************************/
1767 void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1771 p_scb->use_rc = TRUE;
1774 /*******************************************************************************
1776 ** Function bta_av_cco_close
1778 ** Description call close call-out function.
1782 *******************************************************************************/
1783 void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1788 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
1790 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
1793 /*******************************************************************************
1795 ** Function bta_av_open_failed
1797 ** Description Failed to open an AVDT stream
1801 *******************************************************************************/
1802 void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1805 BOOLEAN is_av_opened = FALSE;
1806 tBTA_AV_SCB * p_opened_scb = NULL;
1810 APPL_TRACE_DEBUG("bta_av_open_failed");
1811 p_scb->open_status = BTA_AV_FAIL_STREAM;
1812 bta_av_cco_close(p_scb, p_data);
1814 /* check whether there is already an opened audio or video connection with the same device */
1815 for (idx = 0; (idx < BTA_AV_NUM_STRS) && (is_av_opened == FALSE); idx++ )
1817 p_opened_scb = bta_av_cb.p_scb[idx];
1818 if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) && (!bdcmp(p_opened_scb->peer_addr,p_scb->peer_addr )) )
1819 is_av_opened = TRUE;
1823 /* if there is already an active AV connnection with the same bd_addr,
1824 don't send disconnect req, just report the open event with BTA_AV_FAIL_GET_CAP status */
1825 if (is_av_opened == TRUE)
1827 bdcpy(open.bd_addr, p_scb->peer_addr);
1828 open.chnl = p_scb->chnl;
1829 open.hndl = p_scb->hndl;
1830 open.status = BTA_AV_FAIL_GET_CAP;
1831 open.starting = bta_av_chk_start(p_scb);
1833 /* set the state back to initial state */
1834 bta_av_set_scb_sst_init(p_scb);
1836 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
1837 open.sep = AVDT_TSEP_SNK;
1838 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
1839 open.sep = AVDT_TSEP_SRC;
1841 (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open);
1846 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
1851 /*******************************************************************************
1853 ** Function bta_av_getcap_results
1855 ** Description Handle the AVDTP get capabilities results. Check the codec
1856 ** type and see if it matches ours. If it does not, get the
1857 ** capabilities of the next stream, if any.
1861 *******************************************************************************/
1862 void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1866 tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx];
1867 UINT16 uuid_int; /* UUID for which connection was initiatied */
1869 memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
1871 cfg.num_protect = p_scb->p_cap->num_protect;
1872 memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
1873 memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE);
1874 media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4;
1876 APPL_TRACE_DEBUG("num_codec %d", p_scb->p_cap->num_codec);
1877 APPL_TRACE_DEBUG("media type x%x, x%x", media_type, p_scb->media_type);
1878 #if AVDT_MULTIPLEXING == TRUE
1879 APPL_TRACE_DEBUG("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask);
1882 /* if codec present and we get a codec configuration */
1883 if ((p_scb->p_cap->num_codec != 0) &&
1884 (media_type == p_scb->media_type) &&
1885 (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX],
1886 cfg.codec_info, &p_scb->sep_info_idx, p_info->seid,
1887 &cfg.num_protect, cfg.protect_info) == 0))
1889 #if AVDT_MULTIPLEXING == TRUE
1890 cfg.mux_mask &= p_scb->p_cap->mux_mask;
1891 APPL_TRACE_DEBUG("mux_mask used x%x", cfg.mux_mask);
1893 /* save copy of codec type and configuration */
1894 p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX];
1895 memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG));
1897 uuid_int = p_scb->uuid_int;
1898 APPL_TRACE_DEBUG(" initiator UUID = 0x%x ", uuid_int);
1899 if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
1900 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
1901 else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
1902 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
1904 /* use only the services peer supports */
1905 cfg.psc_mask &= p_scb->p_cap->psc_mask;
1906 p_scb->cur_psc_mask = cfg.psc_mask;
1908 if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
1909 (p_scb->seps[p_scb->sep_idx].p_app_data_cback != NULL))
1911 APPL_TRACE_DEBUG(" Configure Deoder for Sink Connection ");
1912 p_scb->seps[p_scb->sep_idx].p_app_data_cback(BTA_AV_MEDIA_SINK_CFG_EVT,
1913 (tBTA_AV_MEDIA*)p_scb->cfg.codec_info);
1916 /* open the stream */
1917 AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr,
1918 p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
1920 if (!bta_av_is_rcfg_sst(p_scb))
1922 /* free capabilities buffer */
1923 utl_freebuf((void **) &p_scb->p_cap);
1928 /* try the next stream, if any */
1929 p_scb->sep_info_idx++;
1930 bta_av_next_getcap(p_scb, p_data);
1935 /*******************************************************************************
1937 ** Function bta_av_setconfig_rej
1939 ** Description Send AVDTP set config reject.
1943 *******************************************************************************/
1944 void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1946 tBTA_AV_REJECT reject;
1947 UINT8 avdt_handle = p_data->ci_setconfig.avdt_handle;
1949 bta_av_adjust_seps_idx(p_scb, avdt_handle);
1950 APPL_TRACE_DEBUG("bta_av_setconfig_rej: sep_idx: %d",p_scb->sep_idx);
1951 AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
1953 bdcpy(reject.bd_addr, p_data->str_msg.bd_addr);
1954 reject.hndl = p_scb->hndl;
1955 (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject);
1958 /*******************************************************************************
1960 ** Function bta_av_discover_req
1962 ** Description Send an AVDTP discover request to the peer.
1966 *******************************************************************************/
1967 void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1971 /* send avdtp discover request */
1973 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
1976 /*******************************************************************************
1978 ** Function bta_av_conn_failed
1980 ** Description AVDTP connection failed.
1984 *******************************************************************************/
1985 void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
1987 p_scb->open_status = BTA_AV_FAIL_STREAM;
1988 bta_av_str_closed(p_scb, p_data);
1991 /*******************************************************************************
1993 ** Function bta_av_do_start
1995 ** Description Start stream.
1999 *******************************************************************************/
2000 void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2002 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2005 APPL_TRACE_DEBUG("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started);
2006 if (bta_av_cb.sco_occupied)
2008 bta_av_start_failed(p_scb, p_data);
2012 /* disallow role switch during streaming, only if we are the master role
2013 * i.e. allow role switch, if we are slave.
2014 * It would not hurt us, if the peer device wants us to be master */
2015 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2016 (cur_role == BTM_ROLE_MASTER) )
2018 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2021 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2023 if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0))
2025 p_scb->role |= BTA_AV_ROLE_START_INT;
2026 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2028 AVDT_StartReq(&p_scb->avdt_handle, 1);
2030 else if (p_scb->started)
2032 p_scb->role |= BTA_AV_ROLE_START_INT;
2033 if ( p_scb->wait == 0 ) {
2034 if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
2035 notify_start_failed(p_scb);
2037 bta_av_start_ok(p_scb, NULL);
2041 APPL_TRACE_DEBUG("started %d role:x%x", p_scb->started, p_scb->role);
2044 /*******************************************************************************
2046 ** Function bta_av_str_stopped
2048 ** Description Stream stopped.
2052 *******************************************************************************/
2053 void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2055 tBTA_AV_SUSPEND suspend_rsp;
2056 UINT8 start = p_scb->started;
2057 BOOLEAN sus_evt = TRUE;
2059 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2061 APPL_TRACE_ERROR("bta_av_str_stopped:audio_open_cnt=%d, p_data %p",
2062 bta_av_cb.audio_open_cnt, p_data);
2064 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2065 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2066 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2067 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2069 if (p_scb->co_started)
2071 bta_av_stream_chg(p_scb, FALSE);
2072 p_scb->co_started = FALSE;
2074 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2075 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2078 /* if q_info.a2d_list is not empty, drop it now */
2079 if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
2080 while (!list_is_empty(p_scb->a2d_list))
2082 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2083 list_remove(p_scb->a2d_list, p_buf);
2087 /* drop the audio buffers queued in L2CAP */
2088 if (p_data && p_data->api_stop.flush)
2089 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2092 suspend_rsp.chnl = p_scb->chnl;
2093 suspend_rsp.hndl = p_scb->hndl;
2095 if (p_data && p_data->api_stop.suspend)
2097 APPL_TRACE_DEBUG("suspending: %d, sup:%d", start, p_scb->suspend_sup);
2098 if ((start) && (p_scb->suspend_sup))
2101 p_scb->l2c_bufs = 0;
2102 AVDT_SuspendReq(&p_scb->avdt_handle, 1);
2105 /* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is TRUE*/
2106 if ((sus_evt)&&(p_scb->state != BTA_AV_RCFG_SST))
2108 suspend_rsp.status = BTA_AV_SUCCESS;
2109 suspend_rsp.initiator = TRUE;
2110 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2115 suspend_rsp.status = BTA_AV_SUCCESS;
2116 suspend_rsp.initiator = TRUE;
2117 APPL_TRACE_EVENT("bta_av_str_stopped status %d", suspend_rsp.status);
2119 /* send STOP_EVT event only if not in reconfiguring state */
2120 if (p_scb->state != BTA_AV_RCFG_SST)
2122 (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp);
2127 /*******************************************************************************
2129 ** Function bta_av_reconfig
2131 ** Description process the reconfigure request.
2132 ** save the parameter in control block and
2133 ** suspend, reconfigure or close the stream
2137 *******************************************************************************/
2138 void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2141 tBTA_AV_API_STOP stop;
2142 tBTA_AV_RECONFIG evt;
2143 tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig;
2145 APPL_TRACE_DEBUG("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)",
2146 p_scb->recfg_sup, p_scb->suspend_sup,
2147 p_scb->rcfg_idx, p_scb->sep_info_idx);
2149 p_scb->num_recfg = 0;
2150 /* store the new configuration in control block */
2151 if (p_scb->p_cap == NULL)
2153 p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG));
2155 if((p_cfg = p_scb->p_cap) == NULL)
2157 /* report failure */
2158 evt.status = BTA_AV_FAIL_RESOURCES;
2159 evt.chnl = p_scb->chnl;
2160 evt.hndl = p_scb->hndl;
2161 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2163 /* this event is not possible in this state.
2164 * use it to bring the SSM back to open state */
2165 bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL);
2169 /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/
2170 bta_sys_stop_timer(&p_scb->timer);
2172 memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG));
2173 p_cfg->num_protect = p_rcfg->num_protect;
2174 memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
2175 memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
2176 p_scb->rcfg_idx = p_rcfg->sep_info_idx;
2177 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2179 /* if the requested index differs from the current one, we can only close/open */
2180 if ((p_scb->rcfg_idx == p_scb->sep_info_idx) &&
2181 (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup))
2186 stop.suspend = TRUE;
2187 bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop);
2191 APPL_TRACE_DEBUG("Reconfig");
2192 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2193 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2198 /* close the stream */
2199 APPL_TRACE_DEBUG("close/open num_protect: %d", p_cfg->num_protect);
2202 bta_av_str_stopped(p_scb, NULL);
2203 p_scb->started = FALSE;
2205 /* drop the buffers queued in L2CAP */
2206 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2208 AVDT_CloseReq(p_scb->avdt_handle);
2213 /*******************************************************************************
2215 ** Function bta_av_data_path
2217 ** Description Handle stream data path.
2221 *******************************************************************************/
2222 void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2224 BT_HDR *p_buf = NULL;
2227 BOOLEAN new_buf = FALSE;
2228 UINT8 m_pt = 0x60 | p_scb->codec_type;
2229 tAVDT_DATA_OPT_MASK opt;
2238 APPL_TRACE_ERROR("q: %d", p_scb->l2c_bufs);
2240 //Always get the current number of bufs que'd up
2241 p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
2243 if (!list_is_empty(p_scb->a2d_list)) {
2244 p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
2245 list_remove(p_scb->a2d_list, p_buf);
2246 /* use q_info.a2d data, read the timestamp */
2247 timestamp = *(UINT32 *)(p_buf + 1);
2252 /* a2d_list empty, call co_data, dup data to other channels */
2253 p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len,
2258 /* use the offset area for the time stamp */
2259 *(UINT32 *)(p_buf + 1) = timestamp;
2261 /* dup the data to other channels */
2262 bta_av_dup_audio_buf(p_scb, p_buf);
2268 if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM))
2270 /* there's a buffer, just queue it to L2CAP */
2271 /* There's no need to increment it here, it is always read from L2CAP see above */
2272 /* p_scb->l2c_bufs++; */
2274 APPL_TRACE_ERROR("qw: %d", p_scb->l2c_bufs);
2277 /* opt is a bit mask, it could have several options set */
2278 opt = AVDT_DATA_OPT_NONE;
2279 if (p_scb->no_rtp_hdr)
2281 opt |= AVDT_DATA_OPT_NO_RTP;
2284 AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
2289 /* there's a buffer, but L2CAP does not seem to be moving data */
2292 /* just got this buffer from co_data,
2293 * put it in queue */
2294 list_append(p_scb->a2d_list, p_buf);
2298 /* just dequeue it from the a2d_list */
2299 if (list_length(p_scb->a2d_list) < 3) {
2300 /* put it back to the queue */
2301 list_prepend(p_scb->a2d_list, p_buf);
2305 /* too many buffers in a2d_list, drop it. */
2306 bta_av_co_audio_drop(p_scb->hndl);
2314 /*******************************************************************************
2316 ** Function bta_av_start_ok
2318 ** Description Stream started.
2322 *******************************************************************************/
2323 void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2325 tBTA_AV_START start;
2326 tBTA_AV_API_STOP stop;
2327 BOOLEAN initiator = FALSE;
2328 BOOLEAN suspend = FALSE;
2330 UINT8 new_role = p_scb->role;
2332 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2335 APPL_TRACE_DEBUG("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role);
2337 p_scb->started = TRUE;
2338 if (p_scb->sco_suspend)
2340 p_scb->sco_suspend = FALSE;
2343 if (new_role & BTA_AV_ROLE_START_INT)
2346 /* for A2DP SINK we do not send get_caps */
2347 if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle)
2348 &&(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK))
2350 p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
2351 APPL_TRACE_DEBUG(" Local SEP type is SNK new wait is 0x%x",p_scb->wait);
2353 if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED)
2355 /* role switch has failed */
2356 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
2357 p_data = (tBTA_AV_DATA *)&hdr;
2358 hdr.offset = BTA_AV_RS_FAIL;
2360 APPL_TRACE_DEBUG("wait:x%x", p_scb->wait);
2362 if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE))
2364 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2365 if (p_data->hdr.offset == BTA_AV_RS_FAIL)
2367 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2368 start.chnl = p_scb->chnl;
2369 start.status = BTA_AV_FAIL_ROLE;
2370 start.hndl = p_scb->hndl;
2371 start.initiator = initiator;
2372 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2377 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
2378 p_scb->q_tag = BTA_AV_Q_TAG_START;
2381 /* The wait flag may be set here while we are already master on the link */
2382 /* this could happen if a role switch complete event occurred during reconfig */
2383 /* if we are now master on the link, there is no need to wait for the role switch, */
2384 /* complete anymore so we can clear the wait for role switch flag */
2385 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
2388 if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START))
2390 p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
2391 p_scb->q_tag = BTA_AV_Q_TAG_START;
2396 APPL_TRACE_ERROR("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag);
2397 /* Clear first bit of p_scb->wait and not to return from this point else
2398 * HAL layer gets blocked. And if there is delay in Get Capability response as
2399 * first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is not called
2400 * again from bta_av_save_caps.
2402 p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
2405 /* tell role manager to check M/S role */
2406 bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2408 bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2410 if(p_scb->media_type == AVDT_MEDIA_AUDIO)
2412 /* in normal logic, conns should be bta_av_cb.audio_count - 1,
2413 * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet.
2414 * If the code were to be re-arranged for some reasons, this number may need to be changed
2416 p_scb->co_started = bta_av_cb.audio_open_cnt;
2417 flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
2421 flush_to = p_bta_av_cfg->video_flush_to;
2423 L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to );
2425 /* clear the congestion flag */
2426 p_scb->cong = FALSE;
2428 if (new_role & BTA_AV_ROLE_START_INT)
2430 new_role &= ~BTA_AV_ROLE_START_INT;
2432 else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT))
2439 p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
2440 bta_av_stream_chg(p_scb, TRUE);
2444 /* If sink starts stream, disable sniff mode here */
2447 /* If souce is the master role, disable role switch during streaming.
2448 * Otherwise allow role switch, if source is slave.
2449 * Because it would not hurt source, if the peer device wants source to be master */
2450 if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) &&
2451 (cur_role == BTM_ROLE_MASTER) )
2453 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2456 bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2459 p_scb->role = new_role;
2460 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2461 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2463 p_scb->no_rtp_hdr = FALSE;
2464 p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type, p_scb->cfg.codec_info, &p_scb->no_rtp_hdr);
2465 p_scb->co_started = TRUE;
2467 APPL_TRACE_DEBUG("bta_av_start_ok suspending: %d, role:x%x, init %d",
2468 suspend, p_scb->role, initiator);
2470 start.suspending = suspend;
2471 start.initiator = initiator;
2472 start.chnl = p_scb->chnl;
2473 start.status = BTA_AV_SUCCESS;
2474 start.hndl = p_scb->hndl;
2475 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
2479 p_scb->role |= BTA_AV_ROLE_SUSPEND;
2480 p_scb->cong = TRUE; /* do not allow the media data to go through */
2481 /* do not duplicate the media packets to this channel */
2482 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2483 p_scb->co_started = FALSE;
2485 stop.suspend = TRUE;
2486 bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop);
2491 /*******************************************************************************
2493 ** Function bta_av_start_failed
2495 ** Description Stream start failed.
2499 *******************************************************************************/
2500 void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2504 if(p_scb->started == FALSE && p_scb->co_started == FALSE)
2506 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2507 notify_start_failed(p_scb);
2510 bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr);
2511 p_scb->sco_suspend = FALSE;
2514 /*******************************************************************************
2516 ** Function bta_av_str_closed
2518 ** Description Stream closed.
2522 *******************************************************************************/
2523 void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2528 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2530 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2531 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2532 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2533 if (bta_av_cb.audio_open_cnt <= 1)
2535 /* last connection - restore the allow switch flag */
2536 L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
2539 if (p_scb->open_status)
2541 /* must be failure when opening the stream */
2542 bdcpy(data.open.bd_addr, p_scb->peer_addr);
2543 data.open.status = p_scb->open_status;
2544 data.open.chnl = p_scb->chnl;
2545 data.open.hndl = p_scb->hndl;
2547 if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC )
2548 data.open.sep = AVDT_TSEP_SNK;
2549 else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK )
2550 data.open.sep = AVDT_TSEP_SRC;
2552 event = BTA_AV_OPEN_EVT;
2553 p_scb->open_status = BTA_AV_SUCCESS;
2555 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2556 bta_av_cleanup(p_scb, p_data);
2557 (*bta_av_cb.p_cback)(event, &data);
2561 /* do stop if we were started */
2562 if (p_scb->co_started)
2564 bta_av_str_stopped(p_scb, NULL);
2567 /* Update common mtu shared by remaining connectons */
2568 mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU);
2571 p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu);
2572 data.close.chnl = p_scb->chnl;
2573 data.close.hndl = p_scb->hndl;
2574 event = BTA_AV_CLOSE_EVT;
2576 bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr);
2577 bta_av_cleanup(p_scb, p_data);
2578 (*bta_av_cb.p_cback)(event, &data);
2583 /*******************************************************************************
2585 ** Function bta_av_clr_cong
2587 ** Description Clear stream congestion flag.
2591 *******************************************************************************/
2592 void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2596 if(p_scb->co_started)
2597 p_scb->cong = FALSE;
2600 /*******************************************************************************
2602 ** Function bta_av_suspend_cfm
2604 ** Description process the suspend response
2608 *******************************************************************************/
2609 void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2611 tBTA_AV_SUSPEND suspend_rsp;
2612 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2613 UINT8 policy = HCI_ENABLE_SNIFF_MODE;
2615 APPL_TRACE_DEBUG ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d",
2616 bta_av_cb.audio_open_cnt, err_code);
2618 if (p_scb->started == FALSE)
2620 /* handle the condition where there is a collision of SUSPEND req from either side
2621 ** Second SUSPEND req could be rejected. Do not treat this as a failure
2623 APPL_TRACE_WARNING("bta_av_suspend_cfm: already suspended, ignore, err_code %d",
2628 suspend_rsp.status = BTA_AV_SUCCESS;
2629 if (err_code && (err_code != AVDT_ERR_BAD_STATE))
2631 /* Disable suspend feature only with explicit rejection(not with timeout) */
2632 if (err_code != AVDT_ERR_TIMEOUT)
2634 p_scb->suspend_sup = FALSE;
2636 suspend_rsp.status = BTA_AV_FAIL;
2638 APPL_TRACE_ERROR ("bta_av_suspend_cfm: suspend failed, closing connection");
2640 /* SUSPEND failed. Close connection. */
2641 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2645 /* only set started to FALSE when suspend is successful */
2646 p_scb->started = FALSE;
2649 if (p_scb->role & BTA_AV_ROLE_SUSPEND)
2651 p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
2652 p_scb->cong = FALSE;
2655 bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr);
2656 if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1)
2657 policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
2658 bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr);
2660 /* in case that we received suspend_ind, we may need to call co_stop here */
2661 if(p_scb->co_started)
2663 bta_av_stream_chg(p_scb, FALSE);
2666 p_scb->co_started = FALSE;
2667 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2669 L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO);
2673 suspend_rsp.chnl = p_scb->chnl;
2674 suspend_rsp.hndl = p_scb->hndl;
2675 suspend_rsp.initiator = p_data->str_msg.initiator;
2676 (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp);
2680 /*******************************************************************************
2682 ** Function bta_av_rcfg_str_ok
2684 ** Description report reconfigure successful
2688 *******************************************************************************/
2689 void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2691 tBTA_AV_RECONFIG evt;
2694 p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
2695 APPL_TRACE_DEBUG("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid);
2698 bta_av_st_rc_timer(p_scb, NULL);
2699 utl_freebuf((void **)&p_scb->p_cap);
2701 /* No need to keep the role bits once reconfig is done. */
2702 p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
2703 p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
2704 p_scb->role &= ~BTA_AV_ROLE_START_INT;
2707 /* reconfigure success */
2708 evt.status = BTA_AV_SUCCESS;
2709 evt.chnl = p_scb->chnl;
2710 evt.hndl = p_scb->hndl;
2711 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2715 /*******************************************************************************
2717 ** Function bta_av_rcfg_failed
2719 ** Description process reconfigure failed
2723 *******************************************************************************/
2724 void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2726 tBTA_AV_RECONFIG evt;
2728 APPL_TRACE_DEBUG("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x",
2729 p_scb->num_recfg, bta_av_cb.conn_lcb);
2730 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2732 bta_av_cco_close(p_scb, p_data);
2733 /* report failure */
2734 evt.status = BTA_AV_FAIL_STREAM;
2735 evt.chnl = p_scb->chnl;
2736 evt.hndl = p_scb->hndl;
2737 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2738 /* go to closing state */
2739 bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
2743 /* open failed. try again */
2745 if(bta_av_cb.conn_lcb)
2747 AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]);
2751 bta_av_connect_req(p_scb, NULL);
2756 /*******************************************************************************
2758 ** Function bta_av_rcfg_connect
2760 ** Description stream closed. reconnect the stream
2764 *******************************************************************************/
2765 void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2769 p_scb->cong = FALSE;
2771 APPL_TRACE_DEBUG("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg);
2772 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2774 /* let bta_av_rcfg_failed report fail */
2775 bta_av_rcfg_failed(p_scb, NULL);
2778 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2781 /*******************************************************************************
2783 ** Function bta_av_rcfg_discntd
2785 ** Description AVDT disconnected. reconnect the stream
2789 *******************************************************************************/
2790 void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2792 tBTA_AV_RECONFIG evt;
2795 APPL_TRACE_DEBUG("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg);
2797 if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY)
2799 /* report failure */
2800 evt.status = BTA_AV_FAIL_STREAM;
2801 evt.chnl = p_scb->chnl;
2802 evt.hndl = p_scb->hndl;
2803 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2804 /* report close event & go to init state */
2805 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2808 AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]);
2811 /*******************************************************************************
2813 ** Function bta_av_suspend_cont
2815 ** Description received the suspend response.
2816 ** continue to reconfigure the stream
2820 *******************************************************************************/
2821 void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2823 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2824 tBTA_AV_RECONFIG evt;
2826 p_scb->started = FALSE;
2827 p_scb->cong = FALSE;
2830 if (AVDT_ERR_CONNECT == err_code)
2832 /* report failure */
2833 evt.status = BTA_AV_FAIL;
2834 (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt);
2835 bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL);
2839 APPL_TRACE_ERROR("suspend rejected, try close");
2840 /* Disable suspend feature only with explicit rejection(not with timeout) */
2841 if (err_code != AVDT_ERR_TIMEOUT)
2843 p_scb->suspend_sup = FALSE;
2845 /* drop the buffers queued in L2CAP */
2846 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2848 AVDT_CloseReq(p_scb->avdt_handle);
2853 APPL_TRACE_DEBUG("bta_av_suspend_cont calling AVDT_ReconfigReq");
2854 /* reconfig the stream */
2856 AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap);
2857 p_scb->p_cap->psc_mask = p_scb->cur_psc_mask;
2861 /*******************************************************************************
2863 ** Function bta_av_rcfg_cfm
2865 ** Description if reconfigure is successful, report the event
2866 ** otherwise, close the stream.
2870 *******************************************************************************/
2871 void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2873 UINT8 err_code = p_data->str_msg.msg.hdr.err_code;
2876 APPL_TRACE_DEBUG("bta_av_rcfg_cfm");
2880 APPL_TRACE_ERROR("reconfig rejected, try close");
2881 /* Disable reconfiguration feature only with explicit rejection(not with timeout) */
2882 if (err_code != AVDT_ERR_TIMEOUT)
2884 p_scb->recfg_sup = FALSE;
2886 /* started flag is FALSE when reconfigure command is sent */
2887 /* drop the buffers queued in L2CAP */
2888 L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
2889 AVDT_CloseReq(p_scb->avdt_handle);
2893 /* update the codec info after rcfg cfm */
2894 memcpy(p_scb->cfg.codec_info,p_data->str_msg.msg.reconfig_cfm.p_cfg->codec_info,AVDT_CODEC_SIZE);
2895 /* take the SSM back to OPEN state */
2896 bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL);
2900 /*******************************************************************************
2902 ** Function bta_av_rcfg_open
2904 ** Description AVDT is connected. open the stream with the new configuration
2908 *******************************************************************************/
2909 void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2913 APPL_TRACE_DEBUG("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks);
2915 if (p_scb->num_disc_snks == 0)
2917 /* Need to update call-out module so that it will be ready for discover */
2918 p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type);
2920 /* send avdtp discover request */
2921 AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]);
2925 p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX];
2926 memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE);
2927 /* we may choose to use a different SEP at reconfig.
2928 * adjust the sep_idx now */
2929 bta_av_adjust_seps_idx(p_scb, bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
2931 /* open the stream with the new config */
2932 p_scb->sep_info_idx = p_scb->rcfg_idx;
2933 AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr,
2934 p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap);
2939 /*******************************************************************************
2941 ** Function bta_av_security_rej
2943 ** Description Send an AVDTP security reject.
2947 *******************************************************************************/
2948 void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2952 AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE,
2956 /*******************************************************************************
2958 ** Function bta_av_chk_2nd_start
2960 ** Description check if this is 2nd stream and if it needs to be started.
2961 ** This function needs to be kept very similar to bta_av_chk_start
2965 *******************************************************************************/
2966 void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
2968 tBTA_AV_SCB *p_scbi;
2970 BOOLEAN new_started = FALSE;
2973 if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2))
2975 /* more than one audio channel is connected */
2976 if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT))
2978 /* this channel does not need to be reconfigured.
2979 * if there is other channel streaming, start the stream now */
2980 for(i=0; i<BTA_AV_NUM_STRS; i++)
2982 p_scbi = bta_av_cb.p_scb[i];
2983 if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started)
2987 /* start the new stream */
2989 bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
2991 /* may need to update the flush timeout of this already started stream */
2992 if (p_scbi->co_started != bta_av_cb.audio_open_cnt)
2994 p_scbi->co_started = bta_av_cb.audio_open_cnt;
2995 L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
3003 /*******************************************************************************
3005 ** Function bta_av_open_rc
3007 ** Description Send a message to main SM to open RC channel.
3011 *******************************************************************************/
3012 void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3014 tBTA_AV_START start;
3016 APPL_TRACE_DEBUG("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role);
3017 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START))
3019 /* waiting for role switch for some reason & the timer expires */
3020 if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT))
3022 APPL_TRACE_ERROR ("failed to start streaming for role management reasons!!");
3023 bta_sys_stop_timer(&p_scb->timer);
3024 start.chnl = p_scb->chnl;
3025 start.status = BTA_AV_FAIL_ROLE;
3026 start.initiator = TRUE;
3027 start.hndl = p_scb->hndl;
3028 p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
3029 bta_av_cb.rs_idx = 0;
3030 (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start);
3034 /* role switch is done. continue to start streaming */
3035 bta_av_cb.rs_idx = 0;
3036 p_data->hdr.offset = BTA_AV_RS_OK;
3037 bta_av_start_ok (p_scb, p_data);
3042 if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) )
3046 /* AVRC discover db is in use */
3047 if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE)
3049 /* AVRC channel is not connected. delay a little bit */
3050 if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0)
3051 bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL);
3053 p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
3058 /* use main SM for AVRC SDP activities */
3059 bta_av_rc_disc((UINT8)(p_scb->hdi + 1));
3064 if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle)
3066 /* the open API said that this handle does not want a RC connection.
3067 * disconnect it now */
3068 AVRC_Close(p_scb->rc_handle);
3073 /*******************************************************************************
3075 ** Function bta_av_open_at_inc
3077 ** Description This function is called if API open is called by application
3078 ** while state-machine is at incoming state.
3082 *******************************************************************************/
3083 void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data)
3085 tBTA_AV_API_OPEN *p_buf;
3087 memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
3089 if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR)
3091 p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
3093 /* API open will be handled at timeout if SNK did not start signalling. */
3094 /* API open will be ignored if SNK starts signalling. */
3098 /* SNK did not start signalling, API was called N seconds timeout. */
3099 /* We need to switch to INIT state and start opening connection. */
3100 p_scb->coll_mask = 0;
3101 bta_av_set_scb_sst_init (p_scb);
3103 if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL)
3105 memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
3106 bta_sys_sendmsg(p_buf);
3111 #endif /* BTA_AV_INCLUDED */