blob: 29dcea07b4f0bccbc66be9dd6b3fd98b08d97030 [file] [log] [blame]
/******************************************************************************
*
* Copyright 2004-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This file contains action functions for advanced audio/video stream
* state machine. these functions are shared by both audio and video
* streams.
*
******************************************************************************/
#define LOG_TAG "bt_bta_av"
#include "bt_target.h"
#include <base/logging.h>
#include <string.h>
#include <vector>
#include "a2dp_sbc.h"
#include "avdt_api.h"
#include "avrcp_service.h"
#include "bt_utils.h"
#include "bta_av_int.h"
#include "btif/include/btif_av_co.h"
#include "btif/include/btif_config.h"
#include "btif/include/btif_storage.h"
#include "btm_int.h"
#include "device/include/controller.h"
#include "device/include/interop.h"
#include "l2c_api.h"
#include "l2cdefs.h"
#include "osi/include/log.h"
#include "osi/include/osi.h"
#include "osi/include/properties.h"
#include "utl.h"
#if (BTA_AR_INCLUDED == TRUE)
#include "bta_ar_api.h"
#endif
#include "btif/include/btif_av.h"
#include "btif/include/btif_hf.h"
/*****************************************************************************
* Constants
****************************************************************************/
/* the delay time in milliseconds to start service discovery on AVRCP */
#ifndef BTA_AV_RC_DISC_TIME_VAL
#define BTA_AV_RC_DISC_TIME_VAL 3500
#endif
/* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed
* to be sent */
#ifndef BTA_AV_CLOSE_REQ_TIME_VAL
#define BTA_AV_CLOSE_REQ_TIME_VAL 4000
#endif
/* number to retry on reconfigure failure - some headsets requirs this number to
* be more than 1 */
#ifndef BTA_AV_RECONFIG_RETRY
#define BTA_AV_RECONFIG_RETRY 6
#endif
/* ACL quota we are letting FW use for A2DP Offload Tx. */
#define BTA_AV_A2DP_OFFLOAD_XMIT_QUOTA 4
#define BTIF_A2DP_MAX_BITPOOL_MQ 35
static void bta_av_offload_codec_builder(tBTA_AV_SCB* p_scb,
tBT_A2DP_OFFLOAD* p_a2dp_offload);
static void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb,
UNUSED_ATTR tBTA_AV_DATA* p_data);
/* state machine states */
enum {
BTA_AV_INIT_SST,
BTA_AV_INCOMING_SST,
BTA_AV_OPENING_SST,
BTA_AV_OPEN_SST,
BTA_AV_RCFG_SST,
BTA_AV_CLOSING_SST
};
/* the call out functions for audio stream */
const tBTA_AV_CO_FUNCTS bta_av_a2dp_cos = {bta_av_co_audio_init,
bta_av_co_audio_disc_res,
bta_av_co_audio_getconfig,
bta_av_co_audio_setconfig,
bta_av_co_audio_open,
bta_av_co_audio_close,
bta_av_co_audio_start,
bta_av_co_audio_stop,
bta_av_co_audio_source_data_path,
bta_av_co_audio_delay,
bta_av_co_audio_update_mtu,
bta_av_co_content_protect_is_active};
/* ssm action functions for audio stream */
const tBTA_AV_SACT bta_av_a2dp_action[] = {
bta_av_do_disc_a2dp, /* BTA_AV_DO_DISC */
bta_av_cleanup, /* BTA_AV_CLEANUP */
bta_av_free_sdb, /* BTA_AV_FREE_SDB */
bta_av_config_ind, /* BTA_AV_CONFIG_IND */
bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */
bta_av_security_req, /* BTA_AV_SECURITY_REQ */
bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */
bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */
bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */
bta_av_str_opened, /* BTA_AV_STR_OPENED */
bta_av_security_ind, /* BTA_AV_SECURITY_IND */
bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */
bta_av_do_close, /* BTA_AV_DO_CLOSE */
bta_av_connect_req, /* BTA_AV_CONNECT_REQ */
bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */
bta_av_disc_results, /* BTA_AV_DISC_RESULTS */
bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */
bta_av_open_failed, /* BTA_AV_OPEN_FAILED */
bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */
bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */
bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */
bta_av_conn_failed, /* BTA_AV_CONN_FAILED */
bta_av_do_start, /* BTA_AV_DO_START */
bta_av_str_stopped, /* BTA_AV_STR_STOPPED */
bta_av_reconfig, /* BTA_AV_RECONFIG */
bta_av_data_path, /* BTA_AV_DATA_PATH */
bta_av_start_ok, /* BTA_AV_START_OK */
bta_av_start_failed, /* BTA_AV_START_FAILED */
bta_av_str_closed, /* BTA_AV_STR_CLOSED */
bta_av_clr_cong, /* BTA_AV_CLR_CONG */
bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */
bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */
bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */
bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */
bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */
bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */
bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */
bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */
bta_av_security_rej, /* BTA_AV_SECURITY_REJ */
bta_av_open_rc, /* BTA_AV_OPEN_RC */
bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */
bta_av_save_caps, /* BTA_AV_SAVE_CAPS */
bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */
bta_av_cco_close, /* BTA_AV_CCO_CLOSE */
bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */
bta_av_role_res, /* BTA_AV_ROLE_RES */
bta_av_delay_co, /* BTA_AV_DELAY_CO */
bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */
bta_av_offload_req, /* BTA_AV_OFFLOAD_REQ */
bta_av_offload_rsp, /* BTA_AV_OFFLOAD_RSP */
NULL};
/* these tables translate AVDT events to SSM events */
static const uint16_t bta_av_stream_evt_ok[] = {
BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */
BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */
BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */
BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */
BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
0, /* AVDT_RECONFIG_IND_EVT */
BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
0 /* AVDT_DELAY_REPORT_CFM_EVT */
};
static const uint16_t bta_av_stream_evt_fail[] = {
BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */
BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */
BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */
BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */
BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */
BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */
BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */
BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */
BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */
BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */
BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */
BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */
0, /* AVDT_RECONFIG_IND_EVT */
BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */
BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */
BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */
BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */
BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */
BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */
BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */
BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */
0 /* AVDT_DELAY_REPORT_CFM_EVT */
};
/***********************************************
*
* Function bta_get_scb_handle
*
* Description gives the registered AVDT handle.by checking with sep_type.
*
*
* Returns void
**********************************************/
static uint8_t bta_av_get_scb_handle(tBTA_AV_SCB* p_scb, uint8_t local_sep) {
for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
if ((p_scb->seps[i].tsep == local_sep) &&
A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
p_scb->cfg.codec_info)) {
return (p_scb->seps[i].av_handle);
}
}
APPL_TRACE_DEBUG("%s: local sep_type %d not found", __func__, local_sep)
return 0; /* return invalid handle */
}
/***********************************************
*
* Function bta_av_get_scb_sep_type
*
* Description gives the sep type by cross-checking with AVDT handle
*
*
* Returns void
**********************************************/
static uint8_t bta_av_get_scb_sep_type(tBTA_AV_SCB* p_scb,
uint8_t tavdt_handle) {
for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
if (p_scb->seps[i].av_handle == tavdt_handle) return (p_scb->seps[i].tsep);
}
APPL_TRACE_DEBUG("%s: avdt_handle %d not found", __func__, tavdt_handle)
return AVDT_TSEP_INVALID;
}
/*******************************************************************************
*
* Function bta_av_save_addr
*
* Description copy the bd_addr and maybe reset the supported flags
*
*
* Returns void
*
******************************************************************************/
static void bta_av_save_addr(tBTA_AV_SCB* p_scb, const RawAddress& bd_addr) {
APPL_TRACE_DEBUG("%s: peer=%s recfg_sup:%d, suspend_sup:%d", __func__,
bd_addr.ToString().c_str(), p_scb->recfg_sup,
p_scb->suspend_sup);
if (p_scb->PeerAddress() != bd_addr) {
LOG_INFO(LOG_TAG, "%s: reset flags old_addr=%s new_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str(),
bd_addr.ToString().c_str());
/* a new addr, reset the supported flags */
p_scb->recfg_sup = true;
p_scb->suspend_sup = true;
}
/* do this copy anyway, just in case the first addr matches
* the control block one by accident */
p_scb->OnConnected(bd_addr);
}
/*******************************************************************************
*
* Function notify_start_failed
*
* Description notify up-layer AV start failed
*
*
* Returns void
*
******************************************************************************/
static void notify_start_failed(tBTA_AV_SCB* p_scb) {
LOG_ERROR(LOG_TAG, "%s: peer %s role:0x%x bta_channel:%d bta_handle:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->role,
p_scb->chnl, p_scb->hndl);
tBTA_AV_START start;
/* if start failed, clear role */
p_scb->role &= ~BTA_AV_ROLE_START_INT;
start.chnl = p_scb->chnl;
start.status = BTA_AV_FAIL;
start.initiator = true;
start.hndl = p_scb->hndl;
tBTA_AV bta_av_data;
bta_av_data.start = start;
(*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_st_rc_timer
*
* Description start the AVRC timer if no RC connection & CT is supported &
* RC is used or
* as ACP (we do not really know if we want AVRC)
*
* Returns void
*
******************************************************************************/
static void bta_av_st_rc_timer(tBTA_AV_SCB* p_scb,
UNUSED_ATTR tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s: rc_handle:%d, use_rc: %d", __func__, p_scb->rc_handle,
p_scb->use_rc);
/* for outgoing RC connection as INT/CT */
if ((p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) &&
/* (bta_av_cb.features & BTA_AV_FEAT_RCCT) && */
(p_scb->use_rc || (p_scb->role & BTA_AV_ROLE_AD_ACP))) {
if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) {
bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
} else {
p_scb->wait |= BTA_AV_WAIT_CHECK_RC;
}
}
}
/*******************************************************************************
*
* Function bta_av_next_getcap
*
* Description The function gets the capabilities of the next available
* stream found in the discovery results.
*
* Returns true if we sent request to AVDT, false otherwise.
*
******************************************************************************/
static bool bta_av_next_getcap(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
int i;
bool sent_cmd = false;
uint16_t uuid_int = p_scb->uuid_int;
uint8_t sep_requested = 0;
if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
sep_requested = AVDT_TSEP_SNK;
else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
sep_requested = AVDT_TSEP_SRC;
for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) {
/* steam not in use, is a sink, and is the right media type (audio/video) */
if ((!p_scb->sep_info[i].in_use) &&
(p_scb->sep_info[i].tsep == sep_requested) &&
(p_scb->sep_info[i].media_type == p_scb->media_type)) {
p_scb->sep_info_idx = i;
/* we got a stream; get its capabilities */
bool get_all_cap = (p_scb->AvdtpVersion() >= AVDT_VERSION_1_3) &&
(A2DP_GetAvdtpVersion() >= AVDT_VERSION_1_3);
AVDT_GetCapReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info[i].seid,
&p_scb->peer_cap, &bta_av_proc_stream_evt, get_all_cap);
sent_cmd = true;
break;
}
}
/* if no streams available then stream open fails */
if (!sent_cmd) {
APPL_TRACE_ERROR("%s: BTA_AV_STR_GETCAP_FAIL_EVT: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data);
}
return sent_cmd;
}
/*******************************************************************************
*
* Function bta_av_proc_stream_evt
*
* Description Utility function to compose stream events.
*
* Returns void
*
******************************************************************************/
void bta_av_proc_stream_evt(uint8_t handle, const RawAddress& bd_addr,
uint8_t event, tAVDT_CTRL* p_data,
uint8_t scb_index) {
CHECK_LT(scb_index, BTA_AV_NUM_STRS);
tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[scb_index];
uint16_t sec_len = 0;
APPL_TRACE_EVENT(
"%s: peer_address: %s avdt_handle: %d event=0x%x scb_index=%d p_scb=%p",
__func__, bd_addr.ToString().c_str(), handle, event, scb_index, p_scb);
if (p_data) {
if (event == AVDT_SECURITY_IND_EVT) {
sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN)
? p_data->security_ind.len
: BTA_AV_SECURITY_MAX_LEN;
} else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) {
sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN)
? p_data->security_cfm.len
: BTA_AV_SECURITY_MAX_LEN;
}
}
if (p_scb) {
tBTA_AV_STR_MSG* p_msg =
(tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG) + sec_len);
/* copy event data, bd addr, and handle to event message buffer */
p_msg->hdr.offset = 0;
p_msg->bd_addr = bd_addr;
p_msg->scb_index = scb_index;
APPL_TRACE_EVENT("%s: stream event bd_addr: %s scb_index: %u", __func__,
p_msg->bd_addr.ToString().c_str(), scb_index);
if (p_data != NULL) {
memcpy(&p_msg->msg, p_data, sizeof(tAVDT_CTRL));
/* copy config params to event message buffer */
switch (event) {
case AVDT_CONFIG_IND_EVT:
p_msg->cfg = *p_data->config_ind.p_cfg;
break;
case AVDT_SECURITY_IND_EVT:
p_msg->msg.security_ind.p_data = (uint8_t*)(p_msg + 1);
memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data,
sec_len);
break;
case AVDT_SECURITY_CFM_EVT:
p_msg->msg.security_cfm.p_data = (uint8_t*)(p_msg + 1);
if (p_data->hdr.err_code == 0) {
memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data,
sec_len);
}
break;
case AVDT_SUSPEND_IND_EVT:
p_msg->msg.hdr.err_code = 0;
break;
case AVDT_CONNECT_IND_EVT:
p_scb->recfg_sup = true;
p_scb->suspend_sup = true;
break;
default:
break;
}
} else {
p_msg->msg.hdr.err_code = 0;
}
/* look up application event */
if ((p_data == NULL) || (p_data->hdr.err_code == 0)) {
p_msg->hdr.event = bta_av_stream_evt_ok[event];
} else {
p_msg->hdr.event = bta_av_stream_evt_fail[event];
}
p_msg->initiator = false;
if (event == AVDT_SUSPEND_CFM_EVT) p_msg->initiator = true;
APPL_TRACE_VERBOSE("%s: bta_handle:0x%x avdt_handle:%d", __func__,
p_scb->hndl, handle);
p_msg->hdr.layer_specific = p_scb->hndl;
p_msg->handle = handle;
p_msg->avdt_event = event;
bta_sys_sendmsg(p_msg);
}
if (p_data) {
bta_av_conn_cback(handle, bd_addr, event, p_data, scb_index);
} else {
APPL_TRACE_ERROR("%s: p_data is null", __func__);
}
}
/*******************************************************************************
*
* Function bta_av_sink_data_cback
*
* Description This is the AVDTP callback function for sink stream events.
*
* Returns void
*
******************************************************************************/
void bta_av_sink_data_cback(uint8_t handle, BT_HDR* p_pkt, uint32_t time_stamp,
uint8_t m_pt) {
int index = 0;
tBTA_AV_SCB* p_scb;
APPL_TRACE_DEBUG(
"%s: avdt_handle: %d pkt_len=0x%x offset = 0x%x "
"number of frames 0x%x sequence number 0x%x",
__func__, handle, p_pkt->len, p_pkt->offset,
*((uint8_t*)(p_pkt + 1) + p_pkt->offset), p_pkt->layer_specific);
/* Get SCB and correct sep type */
for (index = 0; index < BTA_AV_NUM_STRS; index++) {
p_scb = bta_av_cb.p_scb[index];
if ((p_scb->avdt_handle == handle) &&
(p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)) {
break;
}
}
if (index == BTA_AV_NUM_STRS) {
/* cannot find correct handler */
osi_free(p_pkt);
return;
}
p_pkt->event = BTA_AV_SINK_MEDIA_DATA_EVT;
p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_DATA_EVT, (tBTA_AV_MEDIA*)p_pkt);
/* Free the buffer: a copy of the packet has been delivered */
osi_free(p_pkt);
}
/*******************************************************************************
*
* Function bta_av_a2dp_sdp_cback
*
* Description A2DP service discovery callback.
*
* Returns void
*
******************************************************************************/
static void bta_av_a2dp_sdp_cback(bool found, tA2DP_Service* p_service,
const RawAddress& peer_address) {
APPL_TRACE_DEBUG("%s: peer %s : found=%s", __func__,
peer_address.ToString().c_str(), (found) ? "true" : "false");
tBTA_AV_SCB* p_scb = NULL;
if (peer_address != RawAddress::kEmpty) {
p_scb = bta_av_addr_to_scb(peer_address);
}
if (p_scb == NULL) {
p_scb = bta_av_hndl_to_scb(bta_av_cb.handle);
}
if (p_scb == NULL) {
APPL_TRACE_ERROR("%s: no scb found for SDP handle(0x%x)", __func__,
bta_av_cb.handle);
return;
}
if (bta_av_cb.handle != p_scb->hndl) {
APPL_TRACE_WARNING("%s: SDP bta_handle expected=0x%x processing=0x%x",
__func__, bta_av_cb.handle, p_scb->hndl);
}
if (!found) {
APPL_TRACE_ERROR("%s: peer %s A2DP service discovery failed", __func__,
p_scb->PeerAddress().ToString().c_str());
}
APPL_TRACE_DEBUG("%s: peer %s found=%s", __func__,
p_scb->PeerAddress().ToString().c_str(),
(found) ? "true" : "false");
tBTA_AV_SDP_RES* p_msg =
(tBTA_AV_SDP_RES*)osi_malloc(sizeof(tBTA_AV_SDP_RES));
if (found) {
p_msg->hdr.event = BTA_AV_SDP_DISC_OK_EVT;
} else {
p_msg->hdr.event = BTA_AV_SDP_DISC_FAIL_EVT;
APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
}
if (found && (p_service != NULL)) {
p_scb->SetAvdtpVersion(p_service->avdt_version);
if (p_service->avdt_version != 0) {
if (btif_config_set_bin(p_scb->PeerAddress().ToString(),
AVDTP_VERSION_CONFIG_KEY,
(const uint8_t*)&p_service->avdt_version,
sizeof(p_service->avdt_version))) {
btif_config_save();
} else {
APPL_TRACE_WARNING("%s: Failed to store peer AVDTP version for %s",
__func__, p_scb->PeerAddress().ToString().c_str());
}
}
} else {
p_scb->SetAvdtpVersion(0);
}
p_msg->hdr.layer_specific = p_scb->hndl;
bta_sys_sendmsg(p_msg);
}
/*******************************************************************************
*
* Function bta_av_adjust_seps_idx
*
* Description adjust the sep_idx
*
* Returns
*
******************************************************************************/
static void bta_av_adjust_seps_idx(tBTA_AV_SCB* p_scb, uint8_t avdt_handle) {
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecName(p_scb->cfg.codec_info));
for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
APPL_TRACE_DEBUG("%s: avdt_handle: %d codec: %s", __func__,
p_scb->seps[i].av_handle,
A2DP_CodecName(p_scb->seps[i].codec_info));
if (p_scb->seps[i].av_handle && (p_scb->seps[i].av_handle == avdt_handle) &&
A2DP_CodecTypeEquals(p_scb->seps[i].codec_info,
p_scb->cfg.codec_info)) {
p_scb->sep_idx = i;
p_scb->avdt_handle = p_scb->seps[i].av_handle;
break;
}
}
}
/*******************************************************************************
*
* Function bta_av_switch_role
*
* Description Switch role was not started and a timer was started.
* another attempt to switch role now - still opening.
*
* Returns void
*
******************************************************************************/
void bta_av_switch_role(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE;
tBTA_AV_API_OPEN* p_buf = &p_scb->q_info.open;
APPL_TRACE_DEBUG("%s: peer %s wait:0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY;
/* clear the masks set when the timer is started */
p_scb->wait &=
~(BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START);
if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
if (bta_av_switch_if_needed(p_scb) ||
!bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
} else {
/* this should not happen in theory. Just in case...
* continue to do_disc_a2dp */
switch_res = BTA_AV_RS_DONE;
}
} else {
/* report failure on OPEN */
APPL_TRACE_ERROR("%s: peer %s role switch failed (wait=0x%x)", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->wait);
switch_res = BTA_AV_RS_FAIL;
}
if (switch_res != BTA_AV_RS_NONE) {
if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) {
bta_av_cb.rs_idx = 0;
}
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY;
p_scb->q_tag = 0;
p_buf->switch_res = switch_res;
bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)p_buf);
}
}
/*******************************************************************************
*
* Function bta_av_role_res
*
* Description Handle the role changed event
*
*
* Returns void
*
******************************************************************************/
void bta_av_role_res(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
bool initiator = false;
APPL_TRACE_DEBUG("%s: peer %s q_tag:%d, wait:0x%x, role:0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
p_scb->wait, p_scb->role);
if (p_scb->role & BTA_AV_ROLE_START_INT) initiator = true;
if (p_scb->q_tag == BTA_AV_Q_TAG_START) {
if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) {
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
if (p_data->role_res.hci_status != HCI_SUCCESS) {
p_scb->role &= ~BTA_AV_ROLE_START_INT;
bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
/* start failed because of role switch. */
tBTA_AV_START start;
start.chnl = p_scb->chnl;
start.status = BTA_AV_FAIL_ROLE;
start.hndl = p_scb->hndl;
start.initiator = initiator;
tBTA_AV bta_av_data;
bta_av_data.start = start;
(*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
} else {
bta_av_start_ok(p_scb, p_data);
}
} else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START)
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED;
} else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) {
p_scb->role &= ~BTA_AV_ROLE_START_INT;
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
if (p_data->role_res.hci_status != HCI_SUCCESS) {
/* Open failed because of role switch. */
tBTA_AV_OPEN av_open;
av_open.bd_addr = p_scb->PeerAddress();
av_open.chnl = p_scb->chnl;
av_open.hndl = p_scb->hndl;
av_open.status = BTA_AV_FAIL_ROLE;
if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
av_open.sep = AVDT_TSEP_SNK;
} else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
av_open.sep = AVDT_TSEP_SRC;
}
tBTA_AV bta_av_data;
bta_av_data.open = av_open;
(*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
} else {
/* Continue av open process */
p_scb->q_info.open.switch_res = BTA_AV_RS_DONE;
bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open));
}
} else {
APPL_TRACE_WARNING(
"%s: peer %s unexpected role switch event: q_tag = %d wait = 0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->q_tag,
p_scb->wait);
}
}
APPL_TRACE_DEBUG("%s: peer %s wait:0x%x, role:0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
p_scb->role);
}
/*******************************************************************************
*
* Function bta_av_delay_co
*
* Description Call the delay call-out function to report the delay report
* from SNK
*
* Returns void
*
******************************************************************************/
void bta_av_delay_co(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x delay:%d", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_data->str_msg.msg.delay_rpt_cmd.delay);
p_scb->p_cos->delay(p_scb->hndl, p_scb->PeerAddress(),
p_data->str_msg.msg.delay_rpt_cmd.delay);
}
/*******************************************************************************
*
* Function bta_av_do_disc_a2dp
*
* Description Do service discovery for A2DP.
*
* Returns void
*
******************************************************************************/
void bta_av_do_disc_a2dp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
bool ok_continue = false;
tA2DP_SDP_DB_PARAMS db_params;
uint16_t attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
ATTR_ID_PROTOCOL_DESC_LIST,
ATTR_ID_BT_PROFILE_DESC_LIST};
uint16_t sdp_uuid = 0; /* UUID for which SDP has to be done */
APPL_TRACE_DEBUG("%s: peer_addr: %s use_rc: %d switch_res:%d, oc:%d",
__func__, p_data->api_open.bd_addr.ToString().c_str(),
p_data->api_open.use_rc, p_data->api_open.switch_res,
bta_av_cb.audio_open_cnt);
memcpy(&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN));
switch (p_data->api_open.switch_res) {
case BTA_AV_RS_NONE:
if (bta_av_switch_if_needed(p_scb) ||
!bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
/* waiting for role switch result. save the api to control block */
memcpy(&p_scb->q_info.open, &p_data->api_open,
sizeof(tBTA_AV_API_OPEN));
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
p_scb->q_tag = BTA_AV_Q_TAG_OPEN;
} else {
ok_continue = true;
}
break;
case BTA_AV_RS_FAIL:
/* report a new failure event */
p_scb->open_status = BTA_AV_FAIL_ROLE;
APPL_TRACE_ERROR("%s: BTA_AV_SDP_DISC_FAIL_EVT: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL);
break;
case BTA_AV_RS_OK:
p_data = (tBTA_AV_DATA*)&p_scb->q_info.open;
/* continue to open if link role is ok */
if (bta_av_link_role_ok(p_scb, A2DP_SET_MULTL_BIT)) {
ok_continue = true;
} else {
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN;
}
break;
case BTA_AV_RS_DONE:
ok_continue = true;
break;
}
APPL_TRACE_DEBUG("%s: ok_continue: %d wait:0x%x, q_tag: %d", __func__,
ok_continue, p_scb->wait, p_scb->q_tag);
if (!ok_continue) return;
/* clear the role switch bits */
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) {
p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC;
bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RC_DISC_TIME_VAL,
BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
}
if (bta_av_cb.features & BTA_AV_FEAT_MASTER) {
L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH);
if (bta_av_cb.audio_open_cnt == 1) {
/* there's already an A2DP connection. do not allow switch */
bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
}
}
/* store peer addr other parameters */
bta_av_save_addr(p_scb, p_data->api_open.bd_addr);
p_scb->sec_mask = p_data->api_open.sec_mask;
p_scb->use_rc = p_data->api_open.use_rc;
bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
/* set up parameters */
db_params.db_len = BTA_AV_DISC_BUF_SIZE;
db_params.num_attr = 3;
db_params.p_attrs = attr_list;
p_scb->uuid_int = p_data->api_open.uuid;
p_scb->sdp_discovery_started = true;
if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SINK)
sdp_uuid = UUID_SERVCLASS_AUDIO_SOURCE;
else if (p_scb->uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
sdp_uuid = UUID_SERVCLASS_AUDIO_SINK;
APPL_TRACE_DEBUG(
"%s: Initiate SDP discovery for peer %s : uuid_int=0x%x "
"sdp_uuid=0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
sdp_uuid);
tA2DP_STATUS find_service_status = A2DP_FindService(
sdp_uuid, p_scb->PeerAddress(), &db_params, bta_av_a2dp_sdp_cback);
if (find_service_status != A2DP_SUCCESS) {
APPL_TRACE_ERROR(
"%s: A2DP_FindService() failed for peer %s uuid_int=0x%x "
"sdp_uuid=0x%x : status=%d",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->uuid_int,
sdp_uuid, find_service_status);
bta_av_a2dp_sdp_cback(false, nullptr, p_scb->PeerAddress());
} else {
/* only one A2DP find service is active at a time */
bta_av_cb.handle = p_scb->hndl;
}
}
/*******************************************************************************
*
* Function bta_av_cleanup
*
* Description cleanup AV stream control block.
*
* Returns void
*
******************************************************************************/
void bta_av_cleanup(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
tBTA_AV_CONN_CHG msg;
uint8_t role = BTA_AV_ROLE_AD_INT;
LOG_INFO(LOG_TAG, "%s peer %s", __func__,
p_scb->PeerAddress().ToString().c_str());
/* free any buffers */
p_scb->sdp_discovery_started = false;
p_scb->SetAvdtpVersion(0);
/* initialize some control block variables */
p_scb->open_status = BTA_AV_SUCCESS;
/* if de-registering shut everything down */
msg.hdr.layer_specific = p_scb->hndl;
p_scb->started = false;
p_scb->offload_started = false;
p_scb->use_rtp_header_marker_bit = false;
p_scb->cong = false;
p_scb->role = role;
p_scb->cur_psc_mask = 0;
p_scb->wait = 0;
p_scb->num_disc_snks = 0;
p_scb->coll_mask = 0;
alarm_cancel(p_scb->avrc_ct_timer);
/* TODO(eisenbach): RE-IMPLEMENT USING VSC OR HAL EXTENSION
vendor_get_interface()->send_command(
(vendor_opcode_t)BT_VND_OP_A2DP_OFFLOAD_STOP, (void*)&p_scb->l2c_cid);
if (p_scb->offload_start_pending) {
tBTA_AV_STATUS status = BTA_AV_FAIL_STREAM;
tBTA_AV bta_av_data;
bta_av_data.status = status;
(*bta_av_cb.p_cback)(BTA_AV_OFFLOAD_START_RSP_EVT, &bta_av_data);
}
*/
p_scb->offload_start_pending = false;
if (p_scb->deregistering) {
/* remove stream */
for (int i = 0; i < BTAV_A2DP_CODEC_INDEX_MAX; i++) {
if (p_scb->seps[i].av_handle) AVDT_RemoveStream(p_scb->seps[i].av_handle);
p_scb->seps[i].av_handle = 0;
}
bta_av_dereg_comp((tBTA_AV_DATA*)&msg);
} else {
/* report stream closed to main SM */
msg.is_up = false;
msg.peer_addr = p_scb->PeerAddress();
bta_av_conn_chg((tBTA_AV_DATA*)&msg);
}
}
/*******************************************************************************
*
* Function bta_av_free_sdb
*
* Description Free service discovery db buffer.
*
* Returns void
*
******************************************************************************/
void bta_av_free_sdb(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
p_scb->sdp_discovery_started = false;
}
/*******************************************************************************
*
* Function bta_av_config_ind
*
* Description Handle a stream configuration indication from the peer.
*
* Returns void
*
******************************************************************************/
void bta_av_config_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV_CI_SETCONFIG setconfig{};
tAVDT_SEP_INFO* p_info;
const AvdtpSepConfig* p_evt_cfg = &p_data->str_msg.cfg;
uint8_t psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask);
uint8_t
local_sep; /* sep type of local handle on which connection was received */
tBTA_AV_STR_MSG* p_msg = (tBTA_AV_STR_MSG*)p_data;
local_sep = bta_av_get_scb_sep_type(p_scb, p_msg->handle);
p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x local_sep:%d", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
local_sep);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_evt_cfg->codec_info).c_str());
memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE);
bta_av_save_addr(p_scb, p_data->str_msg.bd_addr);
/* Clear collision mask */
p_scb->coll_mask = 0;
alarm_cancel(bta_av_cb.accept_signalling_timer);
/* if no codec parameters in configuration, fail */
if ((p_evt_cfg->num_codec == 0) ||
/* or the peer requests for a service we do not support */
((psc_mask != p_scb->cfg.psc_mask) &&
(psc_mask != (p_scb->cfg.psc_mask & ~AVDT_PSC_DELAY_RPT)))) {
setconfig.hndl = p_scb->hndl; /* we may not need this */
setconfig.err_code = AVDT_ERR_UNSUP_CFG;
bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT,
(tBTA_AV_DATA*)&setconfig);
} else {
p_info = &p_scb->sep_info[0];
p_info->in_use = 0;
p_info->media_type = p_scb->media_type;
p_info->seid = p_data->str_msg.msg.config_ind.int_seid;
/* Sep type of Peer will be oppsite role to our local sep */
if (local_sep == AVDT_TSEP_SRC)
p_info->tsep = AVDT_TSEP_SNK;
else if (local_sep == AVDT_TSEP_SNK)
p_info->tsep = AVDT_TSEP_SRC;
p_scb->role |= BTA_AV_ROLE_AD_ACP;
p_scb->cur_psc_mask = p_evt_cfg->psc_mask;
if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
p_scb->use_rc = true;
else
p_scb->use_rc = false;
p_scb->num_seps = 1;
p_scb->sep_info_idx = 0;
APPL_TRACE_DEBUG("%s: SEID: %d use_rc: %d cur_psc_mask:0x%x", __func__,
p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask);
/* in case of A2DP SINK this is the first time peer data is being sent to
* co functions */
if (local_sep == AVDT_TSEP_SNK) {
p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
p_evt_cfg->codec_info, p_info->seid,
p_evt_cfg->num_protect, p_evt_cfg->protect_info,
AVDT_TSEP_SNK, p_msg->handle);
} else {
p_scb->p_cos->setcfg(p_scb->hndl, p_scb->PeerAddress(),
p_evt_cfg->codec_info, p_info->seid,
p_evt_cfg->num_protect, p_evt_cfg->protect_info,
AVDT_TSEP_SRC, p_msg->handle);
}
}
}
/*******************************************************************************
*
* Function bta_av_disconnect_req
*
* Description Disconnect AVDTP connection.
*
* Returns void
*
******************************************************************************/
void bta_av_disconnect_req(tBTA_AV_SCB* p_scb,
UNUSED_ATTR tBTA_AV_DATA* p_data) {
tBTA_AV_RCB* p_rcb;
APPL_TRACE_API("%s: conn_lcb: 0x%x peer_addr: %s", __func__,
bta_av_cb.conn_lcb, p_scb->PeerAddress().ToString().c_str());
alarm_cancel(bta_av_cb.link_signalling_timer);
alarm_cancel(p_scb->avrc_ct_timer);
// conn_lcb is the index bitmask of all used LCBs, and since LCB and SCB use
// the same index, it should be safe to use SCB index here.
if ((bta_av_cb.conn_lcb & (1 << p_scb->hdi)) != 0) {
p_rcb = bta_av_get_rcb_by_shdl((uint8_t)(p_scb->hdi + 1));
if (p_rcb) bta_av_del_rc(p_rcb);
AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
} else {
APPL_TRACE_WARNING("%s: conn_lcb=0x%x bta_handle=0x%x (hdi=%u) no link",
__func__, bta_av_cb.conn_lcb, p_scb->hndl, p_scb->hdi);
bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL);
}
}
/*******************************************************************************
*
* Function bta_av_security_req
*
* Description Send an AVDTP security request.
*
* Returns void
*
******************************************************************************/
void bta_av_security_req(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data,
p_data->api_protect_req.len);
}
}
/*******************************************************************************
*
* Function bta_av_security_rsp
*
* Description Send an AVDTP security response.
*
* Returns void
*
******************************************************************************/
void bta_av_security_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label,
p_data->api_protect_rsp.error_code,
p_data->api_protect_rsp.p_data,
p_data->api_protect_rsp.len);
} else {
AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
0);
}
}
/*******************************************************************************
*
* Function bta_av_setconfig_rsp
*
* Description setconfig is OK
*
* Returns void
*
******************************************************************************/
void bta_av_setconfig_rsp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
uint8_t num = p_data->ci_setconfig.num_seid + 1;
uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
uint8_t* p_seid = p_data->ci_setconfig.p_seid;
int i;
uint8_t local_sep;
/* we like this codec_type. find the sep_idx */
local_sep = bta_av_get_scb_sep_type(p_scb, avdt_handle);
bta_av_adjust_seps_idx(p_scb, avdt_handle);
LOG_DEBUG(
LOG_TAG,
"%s: peer %s bta_handle=0x%x avdt_handle=%d sep_idx=%d cur_psc_mask:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->avdt_handle, p_scb->sep_idx, p_scb->cur_psc_mask);
if ((AVDT_TSEP_SNK == local_sep) &&
(p_data->ci_setconfig.err_code == AVDT_SUCCESS) &&
(p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
tBTA_AV_MEDIA av_sink_codec_info;
av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
}
AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label,
p_data->ci_setconfig.err_code, p_data->ci_setconfig.category);
alarm_cancel(bta_av_cb.link_signalling_timer);
if (p_data->ci_setconfig.err_code == AVDT_SUCCESS) {
p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON;
if (p_data->ci_setconfig.recfg_needed)
p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT;
APPL_TRACE_DEBUG("%s: recfg_needed:%d role:0x%x num:%d", __func__,
p_data->ci_setconfig.recfg_needed, p_scb->role, num);
/* callout module tells BTA the number of "good" SEPs and their SEIDs.
* getcap on these SEID */
p_scb->num_seps = num;
if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT)
p_scb->SetAvdtpVersion(AVDT_VERSION_1_3);
if (A2DP_GetCodecType(p_scb->cfg.codec_info) == A2DP_MEDIA_CT_SBC ||
num > 1) {
/* if SBC is used by the SNK as INT, discover req is not sent in
* bta_av_config_ind.
* call disc_res now */
/* this is called in A2DP SRC path only, In case of SINK we don't need it
*/
if (local_sep == AVDT_TSEP_SRC)
p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), num, num, 0,
UUID_SERVCLASS_AUDIO_SOURCE);
} else {
/* we do not know the peer device and it is using non-SBC codec
* we need to know all the SEPs on SNK */
if (p_scb->uuid_int == 0) p_scb->uuid_int = p_scb->open_api.uuid;
bta_av_discover_req(p_scb, NULL);
return;
}
for (i = 1; i < num; i++) {
APPL_TRACE_DEBUG("%s: sep_info[%d] SEID: %d", __func__, i, p_seid[i - 1]);
/* initialize the sep_info[] to get capabilities */
p_scb->sep_info[i].in_use = false;
p_scb->sep_info[i].tsep = AVDT_TSEP_SNK;
p_scb->sep_info[i].media_type = p_scb->media_type;
p_scb->sep_info[i].seid = p_seid[i - 1];
}
/* only in case of local sep as SRC we need to look for other SEPs, In case
* of SINK we don't */
if (local_sep == AVDT_TSEP_SRC) {
/* Make sure UUID has been initialized... */
if (p_scb->uuid_int == 0) p_scb->uuid_int = p_scb->open_api.uuid;
bta_av_next_getcap(p_scb, p_data);
}
}
}
/*******************************************************************************
*
* Function bta_av_str_opened
*
* Description Stream opened OK (incoming/outgoing).
*
* Returns void
*
******************************************************************************/
void bta_av_str_opened(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV_CONN_CHG msg;
uint8_t* p;
APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
msg.hdr.layer_specific = p_scb->hndl;
msg.is_up = true;
msg.peer_addr = p_scb->PeerAddress();
p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
bta_av_conn_chg((tBTA_AV_DATA*)&msg);
/* set the congestion flag, so AV would not send media packets by accident */
p_scb->cong = true;
p_scb->offload_start_pending = false;
p_scb->stream_mtu =
p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__, p_scb->l2c_cid,
p_scb->stream_mtu);
/* Set the media channel as high priority */
L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_HIGH);
L2CA_SetChnlFlushability(p_scb->l2c_cid, true);
bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO));
p_scb->l2c_bufs = 0;
p_scb->p_cos->open(p_scb->hndl, p_scb->PeerAddress(), p_scb->stream_mtu);
{
/* TODO check if other audio channel is open.
* If yes, check if reconfig is needed
* Rigt now we do not do this kind of checking.
* BTA-AV is INT for 2nd audio connection.
* The application needs to make sure the current codec_info is proper.
* If one audio connection is open and another SNK attempts to connect to
* AV,
* the connection will be rejected.
*/
/* check if other audio channel is started. If yes, start */
tBTA_AV_OPEN open;
open.bd_addr = p_scb->PeerAddress();
open.chnl = p_scb->chnl;
open.hndl = p_scb->hndl;
open.status = BTA_AV_SUCCESS;
open.edr = 0;
p = BTM_ReadRemoteFeatures(p_scb->PeerAddress());
if (p != NULL) {
if (HCI_EDR_ACL_2MPS_SUPPORTED(p)) open.edr |= BTA_AV_EDR_2MBPS;
if (HCI_EDR_ACL_3MPS_SUPPORTED(p)) {
if (!interop_match_addr(INTEROP_2MBPS_LINK_ONLY,
&p_scb->PeerAddress())) {
open.edr |= BTA_AV_EDR_3MBPS;
}
}
}
#if (BTA_AR_INCLUDED == TRUE)
bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr, p_scb->hdi);
#endif
if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
open.starting = false;
open.sep = AVDT_TSEP_SNK;
} else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
open.starting = bta_av_chk_start(p_scb);
open.sep = AVDT_TSEP_SRC;
}
tBTA_AV bta_av_data;
bta_av_data.open = open;
(*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
if (open.starting) {
bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
}
}
// This code is used to pass PTS TC for AVDTP ABORT
char value[PROPERTY_VALUE_MAX] = {0};
if ((osi_property_get("bluetooth.pts.force_a2dp_abort", value, "false")) &&
(!strcmp(value, "true"))) {
APPL_TRACE_ERROR("%s: Calling AVDT_AbortReq", __func__);
AVDT_AbortReq(p_scb->avdt_handle);
}
}
/*******************************************************************************
*
* Function bta_av_security_ind
*
* Description Handle an AVDTP security indication.
*
* Returns void
*
******************************************************************************/
void bta_av_security_ind(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
p_scb->avdt_label = p_data->str_msg.msg.hdr.label;
if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
tBTA_AV_PROTECT_REQ protect_req;
protect_req.chnl = p_scb->chnl;
protect_req.hndl = p_scb->hndl;
protect_req.p_data = p_data->str_msg.msg.security_ind.p_data;
protect_req.len = p_data->str_msg.msg.security_ind.len;
tBTA_AV bta_av_data;
bta_av_data.protect_req = protect_req;
(*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, &bta_av_data);
}
/* app doesn't support security indication; respond with failure */
else {
AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL,
0);
}
}
/*******************************************************************************
*
* Function bta_av_security_cfm
*
* Description Handle an AVDTP security confirm.
*
* Returns void
*
******************************************************************************/
void bta_av_security_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) {
tBTA_AV_PROTECT_RSP protect_rsp;
protect_rsp.chnl = p_scb->chnl;
protect_rsp.hndl = p_scb->hndl;
protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data;
protect_rsp.len = p_data->str_msg.msg.security_cfm.len;
protect_rsp.err_code = p_data->str_msg.msg.hdr.err_code;
tBTA_AV bta_av_data;
bta_av_data.protect_rsp = protect_rsp;
(*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, &bta_av_data);
}
}
/*******************************************************************************
*
* Function bta_av_do_close
*
* Description Close stream.
*
* Returns void
*
******************************************************************************/
void bta_av_do_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s: p_scb->co_started=%d", __func__, p_scb->co_started);
/* stop stream if started */
if (p_scb->co_started) {
bta_av_str_stopped(p_scb, NULL);
}
alarm_cancel(bta_av_cb.link_signalling_timer);
/* close stream */
p_scb->started = false;
p_scb->use_rtp_header_marker_bit = false;
/* drop the buffers queued in L2CAP */
L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
AVDT_CloseReq(p_scb->avdt_handle);
/* just in case that the link is congested, link is flow controled by peer or
* for whatever reason the the close request can not be sent in time.
* when this timer expires, AVDT_DisconnectReq will be called to disconnect
* the link
*/
bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_CLOSE_REQ_TIME_VAL,
BTA_AV_API_CLOSE_EVT, p_scb->hndl);
}
/*******************************************************************************
*
* Function bta_av_connect_req
*
* Description Connect AVDTP connection.
*
* Returns void
*
******************************************************************************/
void bta_av_connect_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s: peer %s coll_mask=0x%02x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->coll_mask);
p_scb->sdp_discovery_started = false;
if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
/* SNK initiated L2C connection while SRC was doing SDP. */
/* Wait until timeout to check if SNK starts signalling. */
APPL_TRACE_WARNING("%s: coll_mask=0x%02x incoming timer is up", __func__,
p_scb->coll_mask);
p_scb->coll_mask |= BTA_AV_COLL_API_CALLED;
APPL_TRACE_EVENT("%s: updated coll_mask=0x%02x", __func__,
p_scb->coll_mask);
return;
}
AVDT_ConnectReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sec_mask,
&bta_av_proc_stream_evt);
}
/*******************************************************************************
*
* Function bta_av_sdp_failed
*
* Description Service discovery failed.
*
* Returns void
*
******************************************************************************/
void bta_av_sdp_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
if (p_scb->open_status == BTA_AV_SUCCESS) {
p_scb->open_status = BTA_AV_FAIL_SDP;
}
p_scb->sdp_discovery_started = false;
bta_av_str_closed(p_scb, p_data);
}
/*******************************************************************************
*
* Function bta_av_disc_results
*
* Description Handle the AVDTP discover results. Search through the
* results and find the first available stream, and get
* its capabilities.
*
* Returns void
*
******************************************************************************/
void bta_av_disc_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
uint8_t num_snks = 0, num_srcs = 0, i;
/* our uuid in case we initiate connection */
uint16_t uuid_int = p_scb->uuid_int;
APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x initiator UUID 0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
uuid_int);
/* store number of stream endpoints returned */
p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
for (i = 0; i < p_scb->num_seps; i++) {
/* steam not in use, is a sink, and is audio */
if ((!p_scb->sep_info[i].in_use) &&
(p_scb->sep_info[i].media_type == p_scb->media_type)) {
if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
(uuid_int == UUID_SERVCLASS_AUDIO_SOURCE))
num_snks++;
if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SRC) &&
(uuid_int == UUID_SERVCLASS_AUDIO_SINK))
num_srcs++;
}
}
p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
num_snks, num_srcs, uuid_int);
p_scb->num_disc_snks = num_snks;
p_scb->num_disc_srcs = num_srcs;
/* if we got any */
if (p_scb->num_seps > 0) {
/* initialize index into discovery results */
p_scb->sep_info_idx = 0;
/* get the capabilities of the first available stream */
bta_av_next_getcap(p_scb, p_data);
}
/* else we got discover response but with no streams; we're done */
else {
APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
}
}
/*******************************************************************************
*
* Function bta_av_disc_res_as_acp
*
* Description Handle the AVDTP discover results. Search through the
* results and find the first available stream, and get
* its capabilities.
*
* Returns void
*
******************************************************************************/
void bta_av_disc_res_as_acp(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
uint8_t num_snks = 0, i;
APPL_TRACE_DEBUG("%s: peer %s bta_handle: 0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
/* store number of stream endpoints returned */
p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps;
for (i = 0; i < p_scb->num_seps; i++) {
/* steam is a sink, and is audio */
if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) &&
(p_scb->sep_info[i].media_type == p_scb->media_type)) {
p_scb->sep_info[i].in_use = false;
num_snks++;
}
}
p_scb->p_cos->disc_res(p_scb->hndl, p_scb->PeerAddress(), p_scb->num_seps,
num_snks, 0, UUID_SERVCLASS_AUDIO_SOURCE);
p_scb->num_disc_snks = num_snks;
p_scb->num_disc_srcs = 0;
/* if we got any */
if (p_scb->num_seps > 0) {
/* initialize index into discovery results */
p_scb->sep_info_idx = 0;
/* get the capabilities of the first available stream */
bta_av_next_getcap(p_scb, p_data);
}
/* else we got discover response but with no streams; we're done */
else {
APPL_TRACE_ERROR("%s: BTA_AV_STR_DISC_FAIL_EVT: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data);
}
}
/*******************************************************************************
*
* Function bta_av_save_caps
*
* Description report the SNK SEP capabilities to application
*
* Returns void
*
******************************************************************************/
void bta_av_save_caps(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
AvdtpSepConfig cfg;
tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
uint8_t old_wait = p_scb->wait;
bool getcap_done = false;
APPL_TRACE_DEBUG(
"%s: peer %s bta_handle:0x%x num_seps:%d sep_info_idx:%d wait:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
cfg = p_scb->peer_cap;
/* let application know the capability of the SNK */
if (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
&p_scb->sep_info_idx, p_info->seid, &cfg.num_protect,
cfg.protect_info) != A2DP_SUCCESS) {
p_scb->sep_info_idx++;
APPL_TRACE_DEBUG("%s: result: next sep_info_idx:%d", __func__,
p_scb->sep_info_idx);
} else {
// All capabilities found
getcap_done = true;
APPL_TRACE_DEBUG("%s: result: done sep_info_idx:%d", __func__,
p_scb->sep_info_idx);
}
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(cfg.codec_info).c_str());
if (p_scb->num_seps > p_scb->sep_info_idx && !getcap_done) {
/* Some devices have seps at the end of the discover list, which is not */
/* matching media type(video not audio). */
/* In this case, we are done with getcap without sending another */
/* request to AVDT. */
if (!bta_av_next_getcap(p_scb, p_data)) getcap_done = true;
} else {
getcap_done = true;
}
if (getcap_done) {
APPL_TRACE_DEBUG("%s: getcap_done: num_seps:%d sep_info_idx:%d wait:0x%x",
__func__, p_scb->num_seps, p_scb->sep_info_idx,
p_scb->wait);
p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON | BTA_AV_WAIT_ACP_CAPS_STARTED);
if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) {
bta_av_start_ok(p_scb, NULL);
}
}
}
/*******************************************************************************
*
* Function bta_av_set_use_rc
*
* Description set to use AVRC for this stream control block.
*
* Returns void
*
******************************************************************************/
void bta_av_set_use_rc(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
p_scb->use_rc = true;
}
/*******************************************************************************
*
* Function bta_av_cco_close
*
* Description call close call-out function.
*
* Returns void
*
******************************************************************************/
void bta_av_cco_close(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl);
p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
}
/*******************************************************************************
*
* Function bta_av_open_failed
*
* Description Failed to open an AVDT stream
*
* Returns void
*
******************************************************************************/
void bta_av_open_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
bool is_av_opened = false;
tBTA_AV_SCB* p_opened_scb = NULL;
uint8_t idx;
APPL_TRACE_ERROR("%s: peer_addr=%s", __func__,
p_scb->PeerAddress().ToString().c_str());
p_scb->open_status = BTA_AV_FAIL_STREAM;
bta_av_cco_close(p_scb, p_data);
/* check whether there is already an opened audio or video connection with the
* same device */
for (idx = 0; (idx < BTA_AV_NUM_STRS) && (!is_av_opened); idx++) {
p_opened_scb = bta_av_cb.p_scb[idx];
if (p_opened_scb && (p_opened_scb->state == BTA_AV_OPEN_SST) &&
(p_opened_scb->PeerAddress() == p_scb->PeerAddress()))
is_av_opened = true;
}
/* if there is already an active AV connnection with the same bd_addr,
don't send disconnect req, just report the open event with
BTA_AV_FAIL_GET_CAP status */
if (is_av_opened) {
tBTA_AV_OPEN open;
open.bd_addr = p_scb->PeerAddress();
open.chnl = p_scb->chnl;
open.hndl = p_scb->hndl;
open.status = BTA_AV_FAIL_GET_CAP;
open.starting = bta_av_chk_start(p_scb);
open.edr = 0;
/* set the state back to initial state */
bta_av_set_scb_sst_init(p_scb);
if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC) {
open.sep = AVDT_TSEP_SNK;
} else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK) {
open.sep = AVDT_TSEP_SRC;
}
APPL_TRACE_ERROR(
"%s: there is already an active connection: peer_addr=%s chnl=%d "
"hndl=0x%x status=%d starting=%d edr=%d",
__func__, open.bd_addr.ToString().c_str(), open.chnl, open.hndl,
open.status, open.starting, open.edr);
tBTA_AV bta_av_data;
bta_av_data.open = open;
(*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, &bta_av_data);
} else {
AVDT_DisconnectReq(p_scb->PeerAddress(), &bta_av_proc_stream_evt);
}
}
/*******************************************************************************
*
* Function bta_av_getcap_results
*
* Description Handle the AVDTP get capabilities results. Check the codec
* type and see if it matches ours. If it does not, get the
* capabilities of the next stream, if any.
*
* Returns void
*
******************************************************************************/
void bta_av_getcap_results(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
AvdtpSepConfig cfg = p_scb->cfg;
uint8_t media_type = A2DP_GetMediaType(p_scb->peer_cap.codec_info);
tAVDT_SEP_INFO* p_info = &p_scb->sep_info[p_scb->sep_info_idx];
cfg.num_codec = 1;
cfg.num_protect = p_scb->peer_cap.num_protect;
memcpy(cfg.codec_info, p_scb->peer_cap.codec_info, AVDT_CODEC_SIZE);
memcpy(cfg.protect_info, p_scb->peer_cap.protect_info, AVDT_PROTECT_SIZE);
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x num_codec:%d psc_mask=0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(),
p_scb->hndl, p_scb->peer_cap.num_codec, p_scb->cfg.psc_mask);
APPL_TRACE_DEBUG("%s: media type 0x%x, 0x%x", __func__, media_type,
p_scb->media_type);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
/* if codec present and we get a codec configuration */
if ((p_scb->peer_cap.num_codec != 0) && (media_type == p_scb->media_type) &&
(p_scb->p_cos->getcfg(p_scb->hndl, p_scb->PeerAddress(), cfg.codec_info,
&p_scb->sep_info_idx, p_info->seid,
&cfg.num_protect,
cfg.protect_info) == A2DP_SUCCESS)) {
/* UUID for which connection was initiatied */
uint16_t uuid_int = p_scb->uuid_int;
/* save copy of codec configuration */
p_scb->cfg = cfg;
APPL_TRACE_DEBUG("%s: result: sep_info_idx=%d", __func__,
p_scb->sep_info_idx);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
APPL_TRACE_DEBUG("%s: initiator UUID = 0x%x", __func__, uuid_int);
if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE)
bta_av_adjust_seps_idx(p_scb,
bta_av_get_scb_handle(p_scb, AVDT_TSEP_SRC));
else if (uuid_int == UUID_SERVCLASS_AUDIO_SINK)
bta_av_adjust_seps_idx(p_scb,
bta_av_get_scb_handle(p_scb, AVDT_TSEP_SNK));
LOG_DEBUG(LOG_TAG, "%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x",
__func__, p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
/* use only the services peer supports */
cfg.psc_mask &= p_scb->peer_cap.psc_mask;
p_scb->cur_psc_mask = cfg.psc_mask;
APPL_TRACE_DEBUG(
"%s: peer %s bta_handle:0x%x sep_idx:%d sep_info_idx:%d "
"cur_psc_mask:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->sep_idx, p_scb->sep_info_idx, p_scb->cur_psc_mask);
if ((uuid_int == UUID_SERVCLASS_AUDIO_SINK) &&
(p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback != NULL)) {
APPL_TRACE_DEBUG("%s: configure decoder for Sink connection", __func__);
tBTA_AV_MEDIA av_sink_codec_info;
av_sink_codec_info.avk_config.bd_addr = p_scb->PeerAddress();
av_sink_codec_info.avk_config.codec_info = p_scb->cfg.codec_info;
p_scb->seps[p_scb->sep_idx].p_app_sink_data_cback(
p_scb->PeerAddress(), BTA_AV_SINK_MEDIA_CFG_EVT, &av_sink_codec_info);
}
if (uuid_int == UUID_SERVCLASS_AUDIO_SOURCE) {
A2DP_AdjustCodec(cfg.codec_info);
}
/* open the stream */
AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->PeerAddress(),
p_scb->hdi, p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg);
} else {
/* try the next stream, if any */
p_scb->sep_info_idx++;
bta_av_next_getcap(p_scb, p_data);
}
}
/*******************************************************************************
*
* Function bta_av_setconfig_rej
*
* Description Send AVDTP set config reject.
*
* Returns void
*
******************************************************************************/
void bta_av_setconfig_rej(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV_REJECT reject;
uint8_t avdt_handle = p_data->ci_setconfig.avdt_handle;
bta_av_adjust_seps_idx(p_scb, avdt_handle);
LOG_DEBUG(LOG_TAG, "%s: sep_idx=%d avdt_handle=%d bta_handle=0x%x", __func__,
p_scb->sep_idx, p_scb->avdt_handle, p_scb->hndl);
AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_UNSUP_CFG, 0);
reject.bd_addr = p_data->str_msg.bd_addr;
reject.hndl = p_scb->hndl;
tBTA_AV bta_av_data;
bta_av_data.reject = reject;
(*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_discover_req
*
* Description Send an AVDTP discover request to the peer.
*
* Returns void
*
******************************************************************************/
void bta_av_discover_req(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
/* send avdtp discover request */
AVDT_DiscoverReq(p_scb->PeerAddress(), p_scb->hdi, p_scb->sep_info,
BTA_AV_NUM_SEPS, &bta_av_proc_stream_evt);
}
/*******************************************************************************
*
* Function bta_av_conn_failed
*
* Description AVDTP connection failed.
*
* Returns void
*
******************************************************************************/
void bta_av_conn_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
APPL_TRACE_ERROR("%s: peer_addr=%s open_status=%d", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->open_status);
p_scb->open_status = BTA_AV_FAIL_STREAM;
bta_av_str_closed(p_scb, p_data);
}
/*******************************************************************************
*
* Function bta_av_do_start
*
* Description Start stream.
*
* Returns void
*
******************************************************************************/
void bta_av_do_start(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
uint8_t clear_policy = 0;
uint8_t cur_role;
LOG_INFO(LOG_TAG,
"%s: peer %s sco_occupied:%s role:0x%x started:%s wait:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(),
logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
logbool(p_scb->started).c_str(), p_scb->wait);
if (bta_av_cb.sco_occupied) {
bta_av_start_failed(p_scb, p_data);
return;
}
/* disallow role switch during streaming, only if we are the master role
* i.e. allow role switch, if we are slave.
* It would not hurt us, if the peer device wants us to be master */
if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
(cur_role == BTM_ROLE_MASTER)) {
clear_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
}
bta_sys_clear_policy(BTA_ID_AV, clear_policy, p_scb->PeerAddress());
if (p_scb->started) {
p_scb->role |= BTA_AV_ROLE_START_INT;
if (p_scb->wait != 0) {
LOG_WARN(
LOG_TAG,
"%s: peer %s start stream request ignored: "
"already waiting: sco_occupied:%s role:0x%x started:%s wait:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(),
logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
logbool(p_scb->started).c_str(), p_scb->wait);
return;
}
if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
notify_start_failed(p_scb);
} else {
bta_av_start_ok(p_scb, NULL);
}
return;
}
if ((p_scb->role & BTA_AV_ROLE_START_INT) != 0) {
LOG_WARN(
LOG_TAG,
"%s: peer %s start stream request ignored: "
"already initiated: sco_occupied:%s role:0x%x started:%s wait:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(),
logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
logbool(p_scb->started).c_str(), p_scb->wait);
return;
}
p_scb->role |= BTA_AV_ROLE_START_INT;
bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
uint16_t result = AVDT_StartReq(&p_scb->avdt_handle, 1);
if (result != AVDT_SUCCESS) {
LOG_ERROR(LOG_TAG, "%s: AVDT_StartReq failed for peer %s result:%d",
__func__, p_scb->PeerAddress().ToString().c_str(), result);
bta_av_start_failed(p_scb, p_data);
}
LOG_INFO(LOG_TAG,
"%s: peer %s start requested: sco_occupied:%s role:0x%x "
"started:%s wait:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(),
logbool(bta_av_cb.sco_occupied).c_str(), p_scb->role,
logbool(p_scb->started).c_str(), p_scb->wait);
}
/*******************************************************************************
*
* Function bta_av_str_stopped
*
* Description Stream stopped.
*
* Returns void
*
******************************************************************************/
void bta_av_str_stopped(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV_SUSPEND suspend_rsp;
uint8_t start = p_scb->started;
bool sus_evt = true;
BT_HDR* p_buf;
uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
APPL_TRACE_ERROR(
"%s: peer %s bta_handle:0x%x audio_open_cnt:%d, p_data %p start:%d",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
bta_av_cb.audio_open_cnt, p_data, start);
bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
bta_av_cb.audio_open_cnt == 1) {
set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
}
bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
if (p_scb->co_started) {
if (p_scb->offload_started) {
bta_av_vendor_offload_stop();
p_scb->offload_started = false;
}
bta_av_stream_chg(p_scb, false);
p_scb->co_started = false;
p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
L2CA_SetFlushTimeout(p_scb->PeerAddress(), L2CAP_DEFAULT_FLUSH_TO);
}
/* if q_info.a2dp_list is not empty, drop it now */
if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
while (!list_is_empty(p_scb->a2dp_list)) {
p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
list_remove(p_scb->a2dp_list, p_buf);
osi_free(p_buf);
}
/* drop the audio buffers queued in L2CAP */
if (p_data && p_data->api_stop.flush)
L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
}
suspend_rsp.chnl = p_scb->chnl;
suspend_rsp.hndl = p_scb->hndl;
if (p_data && p_data->api_stop.suspend) {
APPL_TRACE_DEBUG("%s: peer %s suspending: %d, sup:%d", __func__,
p_scb->PeerAddress().ToString().c_str(), start,
p_scb->suspend_sup);
if ((start) && (p_scb->suspend_sup)) {
sus_evt = false;
p_scb->l2c_bufs = 0;
AVDT_SuspendReq(&p_scb->avdt_handle, 1);
}
/* send SUSPEND_EVT event only if not in reconfiguring state and sus_evt is
* true*/
if ((sus_evt) && (p_scb->state != BTA_AV_RCFG_SST)) {
suspend_rsp.status = BTA_AV_SUCCESS;
suspend_rsp.initiator = true;
tBTA_AV bta_av_data;
bta_av_data.suspend = suspend_rsp;
(*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
}
} else {
suspend_rsp.status = BTA_AV_SUCCESS;
suspend_rsp.initiator = true;
APPL_TRACE_EVENT("%s: status %d", __func__, suspend_rsp.status);
// Send STOP_EVT event only if not in reconfiguring state.
// However, we should send STOP_EVT if we are reconfiguring when taking
// the Close->Configure->Open->Start path.
if (p_scb->state != BTA_AV_RCFG_SST ||
(p_data && p_data->api_stop.reconfig_stop)) {
tBTA_AV bta_av_data;
bta_av_data.suspend = suspend_rsp;
(*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, &bta_av_data);
}
}
}
/*******************************************************************************
*
* Function bta_av_reconfig
*
* Description process the reconfigure request.
* save the parameter in control block and
* suspend, reconfigure or close the stream
*
* Returns void
*
******************************************************************************/
void bta_av_reconfig(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
AvdtpSepConfig* p_cfg;
tBTA_AV_API_STOP stop;
tBTA_AV_API_RCFG* p_rcfg = &p_data->api_reconfig;
APPL_TRACE_DEBUG("%s: r:%d, s:%d idx: %d (o:%d)", __func__, p_scb->recfg_sup,
p_scb->suspend_sup, p_scb->rcfg_idx, p_scb->sep_info_idx);
p_scb->num_recfg = 0;
/* store the new configuration in control block */
p_cfg = &p_scb->cfg;
alarm_cancel(p_scb->avrc_ct_timer);
APPL_TRACE_DEBUG(
"%s: p_scb->sep_info_idx=%d p_scb->rcfg_idx=%d p_rcfg->sep_info_idx=%d",
__func__, p_scb->sep_info_idx, p_scb->rcfg_idx, p_rcfg->sep_info_idx);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->peer_cap.codec_info).c_str());
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_rcfg->codec_info).c_str());
p_cfg->num_protect = p_rcfg->num_protect;
memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE);
memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect);
p_scb->rcfg_idx = p_rcfg->sep_info_idx;
p_cfg->psc_mask = p_scb->cur_psc_mask;
// If the requested SEP index is same as the current one, then we
// can Suspend->Reconfigure->Start.
// Otherwise, we have to Close->Configure->Open->Start or
// Close->Configure->Open for streams that are / are not started.
if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && p_rcfg->suspend &&
p_scb->recfg_sup && p_scb->suspend_sup) {
if (p_scb->started) {
// Suspend->Reconfigure->Start
stop.flush = false;
stop.suspend = true;
stop.reconfig_stop = false;
bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
} else {
// Reconfigure
APPL_TRACE_DEBUG("%s: reconfig", __func__);
APPL_TRACE_DEBUG("%s: codec: %s", __func__,
A2DP_CodecInfoString(p_scb->cfg.codec_info).c_str());
AVDT_ReconfigReq(p_scb->avdt_handle, &p_scb->cfg);
p_scb->cfg.psc_mask = p_scb->cur_psc_mask;
}
} else {
// Close the stream first, and then Configure it
APPL_TRACE_DEBUG("%s: Close/Open started: %d state: %d num_protect: %d",
__func__, p_scb->started, p_scb->state,
p_cfg->num_protect);
if (p_scb->started) {
// Close->Configure->Open->Start
if ((p_scb->rcfg_idx != p_scb->sep_info_idx) && p_scb->recfg_sup) {
// Make sure we trigger STOP_EVT when taking the longer road to
// reconfiguration, otherwise we don't call Start.
stop.flush = false;
stop.suspend = false;
stop.reconfig_stop = true;
bta_av_str_stopped(p_scb, (tBTA_AV_DATA*)&stop);
} else {
bta_av_str_stopped(p_scb, NULL);
}
p_scb->started = false;
} else {
// Close->Configure->Open
bta_av_str_stopped(p_scb, NULL);
}
// Drop the buffers queued in L2CAP
L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL);
AVDT_CloseReq(p_scb->avdt_handle);
}
}
/*******************************************************************************
*
* Function bta_av_data_path
*
* Description Handle stream data path.
*
* Returns void
*
******************************************************************************/
void bta_av_data_path(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
BT_HDR* p_buf = NULL;
uint32_t timestamp;
bool new_buf = false;
uint8_t m_pt = 0x60;
tAVDT_DATA_OPT_MASK opt;
if (!p_scb->started) return;
if (p_scb->cong) return;
if (p_scb->use_rtp_header_marker_bit) {
m_pt |= AVDT_MARKER_SET;
}
// Always get the current number of bufs que'd up
p_scb->l2c_bufs =
(uint8_t)L2CA_FlushChannel(p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET);
if (!list_is_empty(p_scb->a2dp_list)) {
p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
list_remove(p_scb->a2dp_list, p_buf);
/* use q_info.a2dp data, read the timestamp */
timestamp = *(uint32_t*)(p_buf + 1);
} else {
new_buf = true;
/* A2DP_list empty, call co_data, dup data to other channels */
p_buf = p_scb->p_cos->data(p_scb->cfg.codec_info, &timestamp);
if (p_buf) {
/* use the offset area for the time stamp */
*(uint32_t*)(p_buf + 1) = timestamp;
/* dup the data to other channels */
bta_av_dup_audio_buf(p_scb, p_buf);
}
}
if (p_buf) {
if (p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) {
/* There's a buffer, just queue it to L2CAP.
* There's no need to increment it here, it is always read from
* L2CAP (see above).
*/
/* opt is a bit mask, it could have several options set */
opt = AVDT_DATA_OPT_NONE;
if (p_scb->no_rtp_header) {
opt |= AVDT_DATA_OPT_NO_RTP;
}
//
// Fragment the payload if larger than the MTU.
// NOTE: The fragmentation is RTP-compatibie.
//
size_t extra_fragments_n = 0;
if (p_buf->len > 0) {
extra_fragments_n = (p_buf->len / p_scb->stream_mtu) +
((p_buf->len % p_scb->stream_mtu) ? 1 : 0) - 1;
}
std::vector<BT_HDR*> extra_fragments;
extra_fragments.reserve(extra_fragments_n);
uint8_t* data_begin = (uint8_t*)(p_buf + 1) + p_buf->offset;
uint8_t* data_end = (uint8_t*)(p_buf + 1) + p_buf->offset + p_buf->len;
while (extra_fragments_n-- > 0) {
data_begin += p_scb->stream_mtu;
size_t fragment_len = data_end - data_begin;
if (fragment_len > p_scb->stream_mtu) fragment_len = p_scb->stream_mtu;
BT_HDR* p_buf2 = (BT_HDR*)osi_malloc(BT_DEFAULT_BUFFER_SIZE);
p_buf2->offset = p_buf->offset;
p_buf2->len = 0;
p_buf2->layer_specific = 0;
uint8_t* packet2 =
(uint8_t*)(p_buf2 + 1) + p_buf2->offset + p_buf2->len;
memcpy(packet2, data_begin, fragment_len);
p_buf2->len += fragment_len;
extra_fragments.push_back(p_buf2);
p_buf->len -= fragment_len;
}
if (!extra_fragments.empty()) {
// Reset the RTP Marker bit for all fragments except the last one
m_pt &= ~AVDT_MARKER_SET;
}
AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf, timestamp, m_pt, opt);
for (size_t i = 0; i < extra_fragments.size(); i++) {
if (i + 1 == extra_fragments.size()) {
// Set the RTP Marker bit for the last fragment
m_pt |= AVDT_MARKER_SET;
}
BT_HDR* p_buf2 = extra_fragments[i];
AVDT_WriteReqOpt(p_scb->avdt_handle, p_buf2, timestamp, m_pt, opt);
}
p_scb->cong = true;
} else {
/* there's a buffer, but L2CAP does not seem to be moving data */
if (new_buf) {
/* just got this buffer from co_data,
* put it in queue */
list_append(p_scb->a2dp_list, p_buf);
} else {
/* just dequeue it from the a2dp_list */
if (list_length(p_scb->a2dp_list) < 3) {
/* put it back to the queue */
list_prepend(p_scb->a2dp_list, p_buf);
} else {
/* too many buffers in a2dp_list, drop it. */
bta_av_co_audio_drop(p_scb->hndl, p_scb->PeerAddress());
osi_free(p_buf);
}
}
}
}
}
/*******************************************************************************
*
* Function bta_av_start_ok
*
* Description Stream started.
*
* Returns void
*
******************************************************************************/
void bta_av_start_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
bool initiator = false;
bool suspend = false;
uint16_t flush_to;
uint8_t new_role = p_scb->role;
BT_HDR hdr;
uint8_t clear_policy = 0;
uint8_t cur_role;
uint8_t local_tsep = p_scb->seps[p_scb->sep_idx].tsep;
LOG_INFO(LOG_TAG,
"%s: peer %s bta_handle:0x%x wait:0x%x role:0x%x local_tsep:%d",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->wait, p_scb->role, local_tsep);
p_scb->started = true;
if (local_tsep == AVDT_TSEP_SRC) {
// The RTP Header marker bit for the A2DP Source encoder
A2dpCodecConfig* codec_config =
bta_av_get_a2dp_peer_current_codec(p_scb->PeerAddress());
CHECK(codec_config != nullptr);
p_scb->use_rtp_header_marker_bit = codec_config->useRtpHeaderMarkerBit();
}
if (p_scb->sco_suspend) {
p_scb->sco_suspend = false;
}
if (new_role & BTA_AV_ROLE_START_INT) initiator = true;
/* for A2DP SINK we do not send get_caps */
if ((p_scb->avdt_handle == p_scb->seps[p_scb->sep_idx].av_handle) &&
(local_tsep == AVDT_TSEP_SNK)) {
p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON);
APPL_TRACE_DEBUG("%s: local SEP type is SNK new wait is 0x%x", __func__,
p_scb->wait);
}
if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) {
/* role switch has failed */
APPL_TRACE_ERROR(
"%s: peer %s role switch failed: bta_handle:0x%x wait:0x%x, role:0x%x",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->wait, p_scb->role);
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED;
p_data = (tBTA_AV_DATA*)&hdr;
hdr.offset = BTA_AV_RS_FAIL;
}
APPL_TRACE_DEBUG("%s: peer %s wait:0x%x use_rtp_header_marker_bit:%s",
__func__, p_scb->PeerAddress().ToString().c_str(),
p_scb->wait,
(p_scb->use_rtp_header_marker_bit) ? "true" : "false");
if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) {
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
if (p_data->hdr.offset == BTA_AV_RS_FAIL) {
bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
tBTA_AV_START start;
start.chnl = p_scb->chnl;
start.status = BTA_AV_FAIL_ROLE;
start.hndl = p_scb->hndl;
start.initiator = initiator;
tBTA_AV bta_av_data;
bta_av_data.start = start;
(*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
return;
}
}
if (!bta_av_link_role_ok(p_scb, A2DP_SET_ONE_BIT))
p_scb->q_tag = BTA_AV_Q_TAG_START;
else {
/* The wait flag may be set here while we are already master on the link */
/* this could happen if a role switch complete event occurred during
* reconfig */
/* if we are now master on the link, there is no need to wait for the role
* switch, */
/* complete anymore so we can clear the wait for role switch flag */
p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS;
}
if (p_scb->wait &
(BTA_AV_WAIT_ROLE_SW_RES_OPEN | BTA_AV_WAIT_ROLE_SW_RES_START)) {
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED;
p_scb->q_tag = BTA_AV_Q_TAG_START;
}
if (p_scb->wait) {
APPL_TRACE_ERROR("%s: peer %s wait:0x%x q_tag:%d not started", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->wait,
p_scb->q_tag);
/* Clear first bit of p_scb->wait and not to return from this point else
* HAL layer gets blocked. And if there is delay in Get Capability response
* as
* first bit of p_scb->wait is cleared hence it ensures bt_av_start_ok is
* not called
* again from bta_av_save_caps.
*/
p_scb->wait &= ~BTA_AV_WAIT_ACP_CAPS_ON;
}
/* tell role manager to check M/S role */
bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
if (p_scb->media_type == AVDT_MEDIA_TYPE_AUDIO) {
/* in normal logic, conns should be bta_av_cb.audio_count - 1,
* However, bta_av_stream_chg is not called to increase
* bta_av_cb.audio_count yet.
* If the code were to be re-arranged for some reasons, this number may need
* to be changed
*/
p_scb->co_started = bta_av_cb.audio_open_cnt;
flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1];
} else {
flush_to = 0;
}
L2CA_SetFlushTimeout(p_scb->PeerAddress(), flush_to);
/* clear the congestion flag */
p_scb->cong = false;
if (new_role & BTA_AV_ROLE_START_INT) {
new_role &= ~BTA_AV_ROLE_START_INT;
} else if ((new_role & BTA_AV_ROLE_AD_ACP) &&
(new_role & BTA_AV_ROLE_SUSPEND_OPT)) {
suspend = true;
}
if (!suspend) {
p_scb->q_tag = BTA_AV_Q_TAG_STREAM;
bta_av_stream_chg(p_scb, true);
}
{
/* If sink starts stream, disable sniff mode here */
if (!initiator) {
/* If souce is the master role, disable role switch during streaming.
* Otherwise allow role switch, if source is slave.
* Because it would not hurt source, if the peer device wants source to be
* master */
if ((BTM_GetRole(p_scb->PeerAddress(), &cur_role) == BTM_SUCCESS) &&
(cur_role == BTM_ROLE_MASTER)) {
clear_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
}
bta_sys_clear_policy(BTA_ID_AV, clear_policy, p_scb->PeerAddress());
}
p_scb->role = new_role;
p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
p_scb->no_rtp_header = false;
p_scb->p_cos->start(p_scb->hndl, p_scb->PeerAddress(),
p_scb->cfg.codec_info, &p_scb->no_rtp_header);
p_scb->co_started = true;
APPL_TRACE_DEBUG("%s: peer %s suspending: %d, role:0x%x, init %d", __func__,
p_scb->PeerAddress().ToString().c_str(), suspend,
p_scb->role, initiator);
tBTA_AV_START start;
start.suspending = suspend;
start.initiator = initiator;
start.chnl = p_scb->chnl;
start.status = BTA_AV_SUCCESS;
start.hndl = p_scb->hndl;
tBTA_AV bta_av_data;
bta_av_data.start = start;
(*bta_av_cb.p_cback)(BTA_AV_START_EVT, &bta_av_data);
if (suspend) {
tBTA_AV_API_STOP stop;
p_scb->role |= BTA_AV_ROLE_SUSPEND;
p_scb->cong = true; /* do not allow the media data to go through */
/* do not duplicate the media packets to this channel */
p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
p_scb->co_started = false;
stop.flush = false;
stop.suspend = true;
stop.reconfig_stop = false;
bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA*)&stop);
}
}
}
/*******************************************************************************
*
* Function bta_av_start_failed
*
* Description Stream start failed.
*
* Returns void
*
******************************************************************************/
void bta_av_start_failed(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
uint8_t set_policy = (HCI_ENABLE_SNIFF_MODE | HCI_ENABLE_MASTER_SLAVE_SWITCH);
APPL_TRACE_ERROR(
"%s: peer %s bta_handle:0x%x audio_open_cnt:%d started:%s co_started:%d",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
bta_av_cb.audio_open_cnt, logbool(p_scb->started).c_str(),
p_scb->co_started);
if (!p_scb->started && !p_scb->co_started) {
bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
notify_start_failed(p_scb);
}
bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
p_scb->sco_suspend = false;
}
/*******************************************************************************
*
* Function bta_av_str_closed
*
* Description Stream closed.
*
* Returns void
*
******************************************************************************/
void bta_av_str_closed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV data;
tBTA_AV_EVT event;
uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
APPL_TRACE_WARNING(
"%s: peer %s bta_handle:0x%x open_status:%d chnl:%d co_started:%d",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->open_status, p_scb->chnl, p_scb->co_started);
if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
bta_av_cb.audio_open_cnt == 1) {
set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
}
bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
if (bta_av_cb.audio_open_cnt <= 1) {
/* last connection - restore the allow switch flag */
L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH);
}
if (p_scb->open_status != BTA_AV_SUCCESS) {
/* must be failure when opening the stream */
data.open.bd_addr = p_scb->PeerAddress();
data.open.status = p_scb->open_status;
data.open.chnl = p_scb->chnl;
data.open.hndl = p_scb->hndl;
if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SRC)
data.open.sep = AVDT_TSEP_SNK;
else if (p_scb->seps[p_scb->sep_idx].tsep == AVDT_TSEP_SNK)
data.open.sep = AVDT_TSEP_SRC;
event = BTA_AV_OPEN_EVT;
p_scb->open_status = BTA_AV_SUCCESS;
bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
bta_av_cleanup(p_scb, p_data);
(*bta_av_cb.p_cback)(event, &data);
} else {
/* do stop if we were started */
if (p_scb->co_started) {
bta_av_str_stopped(p_scb, NULL);
}
{
p_scb->p_cos->close(p_scb->hndl, p_scb->PeerAddress());
data.close.chnl = p_scb->chnl;
data.close.hndl = p_scb->hndl;
event = BTA_AV_CLOSE_EVT;
bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
bta_av_cleanup(p_scb, p_data);
(*bta_av_cb.p_cback)(event, &data);
}
}
}
/*******************************************************************************
*
* Function bta_av_clr_cong
*
* Description Clear stream congestion flag.
*
* Returns void
*
******************************************************************************/
void bta_av_clr_cong(tBTA_AV_SCB* p_scb, UNUSED_ATTR tBTA_AV_DATA* p_data) {
APPL_TRACE_DEBUG("%s", __func__);
if (p_scb->co_started) {
p_scb->cong = false;
}
}
/*******************************************************************************
*
* Function bta_av_suspend_cfm
*
* Description process the suspend response
*
* Returns void
*
******************************************************************************/
void bta_av_suspend_cfm(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
tBTA_AV_SUSPEND suspend_rsp;
uint8_t err_code = p_data->str_msg.msg.hdr.err_code;
uint8_t set_policy = HCI_ENABLE_SNIFF_MODE;
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x audio_open_cnt:%d err_code:%d",
__func__, p_scb->PeerAddress().ToString().c_str(),
p_scb->hndl, bta_av_cb.audio_open_cnt, err_code);
if (!p_scb->started) {
/* handle the condition where there is a collision of SUSPEND req from
*either side
** Second SUSPEND req could be rejected. Do not treat this as a failure
*/
APPL_TRACE_WARNING("%s: already suspended, ignore, err_code %d", __func__,
err_code);
return;
}
suspend_rsp.status = BTA_AV_SUCCESS;
if (err_code && (err_code != AVDT_ERR_BAD_STATE)) {
/* Disable suspend feature only with explicit rejection(not with timeout) */
if (err_code != AVDT_ERR_TIMEOUT) {
p_scb->suspend_sup = false;
}
suspend_rsp.status = BTA_AV_FAIL;
APPL_TRACE_ERROR("%s: suspend failed, closing connection", __func__);
/* SUSPEND failed. Close connection. */
bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
} else {
/* only set started to false when suspend is successful */
p_scb->started = false;
}
if (p_scb->role & BTA_AV_ROLE_SUSPEND) {
p_scb->role &= ~BTA_AV_ROLE_SUSPEND;
p_scb->cong = false;
}
bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->PeerAddress());
if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 ||
bta_av_cb.audio_open_cnt == 1) {
set_policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH;
}
bta_sys_set_policy(BTA_ID_AV, set_policy, p_scb->PeerAddress());
/* in case that we received suspend_ind, we may need to call co_stop here */
if (p_scb->co_started) {
if (p_scb->offload_started) {
bta_av_vendor_offload_stop();
p_scb->offload_started = false;
}
bta_av_stream_chg(p_scb, false);
{
p_scb->co_started = false;
p_scb->p_cos->stop(p_scb->hndl, p_scb->PeerAddress());
}
L2CA_SetFlushTimeout(p_scb->PeerAddress(), L2CAP_DEFAULT_FLUSH_TO);
}
{
suspend_rsp.chnl = p_scb->chnl;
suspend_rsp.hndl = p_scb->hndl;
suspend_rsp.initiator = p_data->str_msg.initiator;
tBTA_AV bta_av_data;
bta_av_data.suspend = suspend_rsp;
(*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, &bta_av_data);
}
}
/*******************************************************************************
*
* Function bta_av_rcfg_str_ok
*
* Description report reconfigure successful
*
* Returns void
*
******************************************************************************/
void bta_av_rcfg_str_ok(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle);
APPL_TRACE_DEBUG("%s: peer %s bta_handle:0x%x l2c_cid:%d", __func__,
p_scb->PeerAddress().ToString().c_str(), p_scb->hndl,
p_scb->l2c_cid);
if (p_data != NULL) {
// p_data could be NULL if the reconfig was triggered by the local device
p_scb->stream_mtu =
p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE;
APPL_TRACE_DEBUG("%s: l2c_cid: 0x%x stream_mtu: %d", __func__,
p_scb->l2c_cid, p_scb->stream_mtu);
p_scb->p_cos->update_mtu(p_scb->hndl, p_scb->PeerAddress(),
p_scb->stream_mtu);
}
/* rc listen */
bta_av_st_rc_timer(p_scb, NULL);
/* No need to keep the role bits once reconfig is done. */
p_scb->role &= ~BTA_AV_ROLE_AD_ACP;
p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT;
p_scb->role &= ~BTA_AV_ROLE_START_INT;
{
/* reconfigure success */
tBTA_AV_RECONFIG reconfig;
reconfig.status = BTA_AV_SUCCESS;
reconfig.chnl = p_scb->chnl;
reconfig.hndl = p_scb->hndl;
tBTA_AV bta_av_data;
bta_av_data.reconfig = reconfig;
(*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
}
}
/*******************************************************************************
*
* Function bta_av_rcfg_failed
*
* Description process reconfigure failed
*
* Returns void
*
******************************************************************************/
void bta_av_rcfg_failed(tBTA_AV_SCB* p_scb, tBTA_AV_DATA* p_data) {
APPL_TRACE_ERROR("%s: num_recfg=%d conn_lcb=0x%x peer_addr=%s", __func__,
p_scb->num_recfg, bta_av_cb.conn_lcb,
p_scb->PeerAddress().ToString().c_str());
if (p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) {
bta_av_cco_close(p_scb, p_data);
/* report failure */
tBTA_AV_RECONFIG reconfig;
reconfig.status = BTA_AV_FAIL_STREAM;
reconfig.chnl = p_scb->chnl;
reconfig.hndl = p_scb->hndl;
tBTA_AV bta_av_data;
bta_av_data.reconfig = reconfig;
(*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, &bta_av_data);
/* go to closing state */
bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL);
} else {
/* open failed. try again */
p_scb->num_recfg++;
// conn_lcb is the index bitmask of all used LCBs, and since LCB and SCB use