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android13/packages/modules/Bluetooth/system/bta/av/bta_av_main.cc

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/******************************************************************************
*
* 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 is the main implementation file for the BTA advanced audio/video.
*
******************************************************************************/
#define LOG_TAG "bt_bta_av"
#include <cstdint>
#include "bt_target.h" // Must be first to define build configuration
#include "bta/av/bta_av_int.h"
#include "bta/include/bta_ar_api.h"
#include "bta/include/utl.h"
#include "btif/avrcp/avrcp_service.h"
#include "btif/include/btif_av_co.h"
#include "btif/include/btif_config.h"
#include "main/shim/dumpsys.h"
#include "osi/include/allocator.h"
#include "osi/include/log.h"
#include "osi/include/osi.h" // UNUSED_ATTR
#include "osi/include/properties.h"
#include "stack/include/acl_api.h"
#include "stack/include/bt_hdr.h"
#include "stack/include/btm_api.h"
#include "types/hci_role.h"
#include "types/raw_address.h"
#include <base/logging.h>
/*****************************************************************************
* Constants and types
****************************************************************************/
#ifndef BTA_AV_RET_TOUT
#define BTA_AV_RET_TOUT 4
#endif
#ifndef BTA_AV_SIG_TOUT
#define BTA_AV_SIG_TOUT 4
#endif
#ifndef BTA_AV_IDLE_TOUT
#define BTA_AV_IDLE_TOUT 10
#endif
/* the delay time in milliseconds to retry role switch */
#ifndef BTA_AV_RS_TIME_VAL
#define BTA_AV_RS_TIME_VAL 1000
#endif
#ifndef AVRCP_VERSION_PROPERTY
#define AVRCP_VERSION_PROPERTY "persist.bluetooth.avrcpversion"
#endif
#ifndef AVRCP_1_6_STRING
#define AVRCP_1_6_STRING "avrcp16"
#endif
#ifndef AVRCP_1_5_STRING
#define AVRCP_1_5_STRING "avrcp15"
#endif
#ifndef AVRCP_1_4_STRING
#define AVRCP_1_4_STRING "avrcp14"
#endif
#ifndef AVRCP_1_3_STRING
#define AVRCP_1_3_STRING "avrcp13"
#endif
#ifndef AVRCP_DEFAULT_VERSION
#define AVRCP_DEFAULT_VERSION AVRCP_1_5_STRING
#endif
/* state machine states */
enum { BTA_AV_INIT_ST, BTA_AV_OPEN_ST };
typedef void (*tBTA_AV_NSM_ACT)(tBTA_AV_DATA* p_data);
static void bta_av_api_enable(tBTA_AV_DATA* p_data);
static void bta_av_api_register(tBTA_AV_DATA* p_data);
static void bta_av_ci_data(tBTA_AV_DATA* p_data);
static void bta_av_rpc_conn(tBTA_AV_DATA* p_data);
static void bta_av_api_to_ssm(tBTA_AV_DATA* p_data);
static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, uint8_t id,
uint8_t app_id, const RawAddress& peer_addr);
static void bta_av_sys_rs_cback(tBTA_SYS_CONN_STATUS status, uint8_t id,
uint8_t app_id, const RawAddress& peer_addr);
/*****************************************************************************
* Global data
****************************************************************************/
/* AV control block */
tBTA_AV_CB bta_av_cb = {};
static const char* bta_av_st_code(uint8_t state);
/*******************************************************************************
*
* Function bta_av_api_enable
*
* Description Handle an API enable event.
*
*
* Returns void
*
******************************************************************************/
static void bta_av_api_enable(tBTA_AV_DATA* p_data) {
if (bta_av_cb.disabling) {
APPL_TRACE_WARNING(
"%s: previous (reg_audio=%#x) is still disabling (attempts=%d)",
__func__, bta_av_cb.reg_audio, bta_av_cb.enabling_attempts);
if (++bta_av_cb.enabling_attempts <= kEnablingAttemptsCountMaximum) {
tBTA_AV_API_ENABLE* p_buf =
(tBTA_AV_API_ENABLE*)osi_malloc(sizeof(tBTA_AV_API_ENABLE));
memcpy(p_buf, &p_data->api_enable, sizeof(tBTA_AV_API_ENABLE));
#if BASE_VER < 931007
bta_sys_sendmsg_delayed(p_buf, base::TimeDelta::FromMilliseconds(
#else
bta_sys_sendmsg_delayed(p_buf, base::Milliseconds(
#endif
kEnablingAttemptsIntervalMs));
return;
}
if (bta_av_cb.sdp_a2dp_handle) {
SDP_DeleteRecord(bta_av_cb.sdp_a2dp_handle);
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
}
if (bta_av_cb.sdp_a2dp_snk_handle) {
SDP_DeleteRecord(bta_av_cb.sdp_a2dp_snk_handle);
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
}
// deregister from AVDT
bta_ar_dereg_avdt();
// deregister from AVCT
bta_ar_dereg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL);
bta_ar_dereg_avrc(UUID_SERVCLASS_AV_REM_CTRL_TARGET);
bta_ar_dereg_avct();
}
/* initialize control block */
memset(&bta_av_cb, 0, sizeof(tBTA_AV_CB));
for (int i = 0; i < BTA_AV_NUM_RCB; i++)
bta_av_cb.rcb[i].handle = BTA_AV_RC_HANDLE_NONE;
bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE;
/* store parameters */
bta_av_cb.p_cback = p_data->api_enable.p_cback;
bta_av_cb.features = p_data->api_enable.features;
bta_av_cb.offload_start_pending_hndl = BTA_AV_INVALID_HANDLE;
bta_av_cb.offload_started_hndl = BTA_AV_INVALID_HANDLE;
tBTA_AV_ENABLE enable;
enable.features = bta_av_cb.features;
/* Register for SCO change event */
bta_sys_sco_register(bta_av_sco_chg_cback);
/* call callback with enable event */
tBTA_AV bta_av_data;
bta_av_data.enable = enable;
(*bta_av_cb.p_cback)(BTA_AV_ENABLE_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_addr_to_scb
*
* Description find the stream control block by the peer addr
*
* Returns void
*
******************************************************************************/
tBTA_AV_SCB* bta_av_addr_to_scb(const RawAddress& bd_addr) {
tBTA_AV_SCB* p_scb = NULL;
int xx;
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
if (bta_av_cb.p_scb[xx]) {
if (bd_addr == bta_av_cb.p_scb[xx]->PeerAddress()) {
p_scb = bta_av_cb.p_scb[xx];
break;
}
}
}
return p_scb;
}
int BTA_AvObtainPeerChannelIndex(const RawAddress& peer_address) {
// Find the entry for the peer (if exists)
tBTA_AV_SCB* p_scb = bta_av_addr_to_scb(peer_address);
if (p_scb != nullptr) {
return p_scb->hdi;
}
// Find the index for an entry that is not used
for (int index = 0; index < BTA_AV_NUM_STRS; index++) {
tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[index];
if (p_scb == nullptr) {
continue;
}
if (p_scb->PeerAddress().IsEmpty()) {
return p_scb->hdi;
}
}
return -1;
}
/*******************************************************************************
*
* Function bta_av_hndl_to_scb
*
* Description find the stream control block by the handle
*
* Returns void
*
******************************************************************************/
tBTA_AV_SCB* bta_av_hndl_to_scb(uint16_t handle) {
tBTA_AV_HNDL hndl = (tBTA_AV_HNDL)handle;
tBTA_AV_SCB* p_scb = NULL;
uint8_t idx = (hndl & BTA_AV_HNDL_MSK);
if (idx && (idx <= BTA_AV_NUM_STRS)) {
p_scb = bta_av_cb.p_scb[idx - 1];
}
return p_scb;
}
/*******************************************************************************
*
* Function bta_av_alloc_scb
*
* Description allocate stream control block,
* register the service to stack
* create SDP record
*
* Returns void
*
******************************************************************************/
static tBTA_AV_SCB* bta_av_alloc_scb(tBTA_AV_CHNL chnl) {
if (chnl != BTA_AV_CHNL_AUDIO) {
APPL_TRACE_ERROR("%s: bad channel: %d", __func__, chnl);
return nullptr;
}
for (int xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
if (bta_av_cb.p_scb[xx] != nullptr) continue;
// Found an empty spot
// TODO: After tBTA_AV_SCB is changed to a proper class, the entry
// here should be allocated by C++ 'new' statement.
tBTA_AV_SCB* p_ret = (tBTA_AV_SCB*)osi_calloc(sizeof(tBTA_AV_SCB));
p_ret->rc_handle = BTA_AV_RC_HANDLE_NONE;
p_ret->chnl = chnl;
p_ret->hndl = (tBTA_AV_HNDL)((xx + 1) | chnl);
p_ret->hdi = xx;
p_ret->a2dp_list = list_new(nullptr);
p_ret->avrc_ct_timer = alarm_new("bta_av.avrc_ct_timer");
bta_av_cb.p_scb[xx] = p_ret;
return p_ret;
}
return nullptr;
}
void bta_av_free_scb(tBTA_AV_SCB* p_scb) {
if (p_scb == nullptr) return;
uint8_t scb_index = p_scb->hdi;
CHECK(scb_index < BTA_AV_NUM_STRS);
CHECK(p_scb == bta_av_cb.p_scb[scb_index]);
bta_av_cb.p_scb[scb_index] = nullptr;
alarm_free(p_scb->avrc_ct_timer);
// TODO: After tBTA_AV_SCB is changed to a proper class, the entry
// here should be de-allocated by C++ 'delete' statement.
osi_free(p_scb);
}
void tBTA_AV_SCB::OnConnected(const RawAddress& peer_address) {
peer_address_ = peer_address;
if (peer_address.IsEmpty()) {
LOG_ERROR("%s: Invalid peer address: %s", __func__,
peer_address.ToString().c_str());
return;
}
// Read and restore the AVDTP version from local storage
uint16_t avdtp_version = 0;
size_t version_value_size = sizeof(avdtp_version);
if (!btif_config_get_bin(peer_address_.ToString(), AVDTP_VERSION_CONFIG_KEY,
(uint8_t*)&avdtp_version, &version_value_size)) {
LOG_WARN("%s: Failed to read cached peer AVDTP version for %s", __func__,
peer_address_.ToString().c_str());
} else {
SetAvdtpVersion(avdtp_version);
}
}
void tBTA_AV_SCB::OnDisconnected() {
peer_address_ = RawAddress::kEmpty;
SetAvdtpVersion(0);
}
void tBTA_AV_SCB::SetAvdtpVersion(uint16_t avdtp_version) {
avdtp_version_ = avdtp_version;
LOG_INFO("%s: AVDTP version for %s set to 0x%x", __func__,
peer_address_.ToString().c_str(), avdtp_version_);
}
/*******************************************************************************
******************************************************************************/
void bta_av_conn_cback(UNUSED_ATTR uint8_t handle, const RawAddress& bd_addr,
uint8_t event, tAVDT_CTRL* p_data, uint8_t scb_index) {
uint16_t evt = 0;
tBTA_AV_SCB* p_scb = NULL;
if (event == BTA_AR_AVDT_CONN_EVT || event == AVDT_CONNECT_IND_EVT ||
event == AVDT_DISCONNECT_IND_EVT)
{
evt = BTA_AV_SIG_CHG_EVT;
if (event == AVDT_DISCONNECT_IND_EVT) {
p_scb = bta_av_addr_to_scb(bd_addr);
} else if (event == AVDT_CONNECT_IND_EVT) {
APPL_TRACE_DEBUG("%s: CONN_IND is ACP:%d", __func__,
p_data->hdr.err_param);
}
tBTA_AV_STR_MSG* p_msg =
(tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG));
p_msg->hdr.event = evt;
p_msg->hdr.layer_specific = event;
p_msg->hdr.offset = p_data->hdr.err_param;
p_msg->bd_addr = bd_addr;
p_msg->scb_index = scb_index;
if (p_scb) {
APPL_TRACE_DEBUG("%s: bta_handle x%x, role x%x", __func__, p_scb->hndl,
p_scb->role);
}
LOG_INFO("%s: conn_cback bd_addr: %s", __func__,
bd_addr.ToString().c_str());
bta_sys_sendmsg(p_msg);
}
}
/*******************************************************************************
*
* Function bta_av_a2dp_report_cback
*
* Description A2DP report callback.
*
* Returns void
*
******************************************************************************/
static void bta_av_a2dp_report_cback(UNUSED_ATTR uint8_t handle,
UNUSED_ATTR AVDT_REPORT_TYPE type,
UNUSED_ATTR tAVDT_REPORT_DATA* p_data) {
/* Do not need to handle report data for now.
* This empty function is here for conformance reasons. */
}
/*******************************************************************************
*
* Function bta_av_api_register
*
* Description allocate stream control block,
* register the service to stack
* create SDP record
*
* Returns void
*
******************************************************************************/
static void bta_av_api_register(tBTA_AV_DATA* p_data) {
tBTA_AV_REGISTER registr;
tBTA_AV_SCB* p_scb; /* stream control block */
AvdtpRcb reg;
AvdtpStreamConfig avdtp_stream_config;
char* p_service_name;
tBTA_UTL_COD cod;
if (bta_av_cb.disabling || (bta_av_cb.features == 0)) {
APPL_TRACE_WARNING(
"%s: AV instance (features=%#x, reg_audio=%#x) is not "
"ready for app_id %d",
__func__, bta_av_cb.features, bta_av_cb.reg_audio,
p_data->api_reg.app_id);
tBTA_AV_API_REG* p_buf =
(tBTA_AV_API_REG*)osi_malloc(sizeof(tBTA_AV_API_REG));
memcpy(p_buf, &p_data->api_reg, sizeof(tBTA_AV_API_REG));
bta_sys_sendmsg_delayed(
#if BASE_VER < 931007
p_buf, base::TimeDelta::FromMilliseconds(kEnablingAttemptsIntervalMs));
#else
p_buf, base::Milliseconds(kEnablingAttemptsIntervalMs));
#endif
return;
}
avdtp_stream_config.Reset();
registr.status = BTA_AV_FAIL_RESOURCES;
registr.app_id = p_data->api_reg.app_id;
registr.chnl = (tBTA_AV_CHNL)p_data->hdr.layer_specific;
char avrcp_version[PROPERTY_VALUE_MAX] = {0};
osi_property_get(AVRCP_VERSION_PROPERTY, avrcp_version,
AVRCP_DEFAULT_VERSION);
LOG_INFO("%s: AVRCP version used for sdp: \"%s\"", __func__, avrcp_version);
uint16_t profile_initialized = p_data->api_reg.service_uuid;
if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) {
p_bta_av_cfg = get_bta_avk_cfg();
} else if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) {
p_bta_av_cfg = &bta_av_cfg;
if (!strncmp(AVRCP_1_3_STRING, avrcp_version, sizeof(AVRCP_1_3_STRING))) {
LOG_INFO("%s: AVRCP 1.3 capabilites used", __func__);
p_bta_av_cfg = &bta_av_cfg_compatibility;
}
}
APPL_TRACE_DEBUG("%s: profile: 0x%x", __func__, profile_initialized);
if (p_bta_av_cfg == NULL) {
APPL_TRACE_ERROR("%s: AV configuration is null!", __func__);
return;
}
do {
p_scb = bta_av_alloc_scb(registr.chnl);
if (p_scb == NULL) {
APPL_TRACE_ERROR("%s: failed to alloc SCB", __func__);
break;
}
registr.hndl = p_scb->hndl;
p_scb->app_id = registr.app_id;
/* initialize the stream control block */
registr.status = BTA_AV_SUCCESS;
if (bta_av_cb.reg_audio == 0) {
/* the first channel registered. register to AVDTP */
reg.ctrl_mtu = 672;
reg.ret_tout = BTA_AV_RET_TOUT;
reg.sig_tout = BTA_AV_SIG_TOUT;
reg.idle_tout = BTA_AV_IDLE_TOUT;
reg.scb_index = p_scb->hdi;
bta_ar_reg_avdt(&reg, bta_av_conn_cback);
bta_sys_role_chg_register(&bta_av_sys_rs_cback);
/* create remote control TG service if required */
if (bta_av_cb.features & (BTA_AV_FEAT_RCTG)) {
/* register with no authorization; let AVDTP use authorization instead
*/
bta_ar_reg_avct();
/* For the Audio Sink role we support additional TG to support
* absolute volume.
*/
if (is_new_avrcp_enabled()) {
APPL_TRACE_DEBUG("%s: newavrcp is the owner of the AVRCP Target SDP "
"record. Don't create the SDP record", __func__);
} else {
APPL_TRACE_DEBUG("%s: newavrcp is not enabled. Create SDP record",
__func__);
uint16_t profile_version = AVRC_REV_1_0;
if (!strncmp(AVRCP_1_6_STRING, avrcp_version,
sizeof(AVRCP_1_6_STRING))) {
profile_version = AVRC_REV_1_6;
} else if (!strncmp(AVRCP_1_5_STRING, avrcp_version,
sizeof(AVRCP_1_5_STRING))) {
profile_version = AVRC_REV_1_5;
} else if (!strncmp(AVRCP_1_3_STRING, avrcp_version,
sizeof(AVRCP_1_3_STRING))) {
profile_version = AVRC_REV_1_3;
} else {
profile_version = AVRC_REV_1_4;
}
bta_ar_reg_avrc(
UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target", NULL,
p_bta_av_cfg->avrc_tg_cat,
(bta_av_cb.features & BTA_AV_FEAT_BROWSE), profile_version);
}
}
/* Set the Capturing service class bit */
if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE)
cod.service = BTM_COD_SERVICE_CAPTURING;
else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK)
cod.service = BTM_COD_SERVICE_RENDERING;
utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS);
} /* if 1st channel */
/* get stream configuration and create stream */
avdtp_stream_config.cfg.num_codec = 1;
avdtp_stream_config.nsc_mask = AvdtpStreamConfig::AVDT_NSC_RECONFIG;
if (!(bta_av_cb.features & BTA_AV_FEAT_PROTECT)) {
avdtp_stream_config.nsc_mask |= AvdtpStreamConfig::AVDT_NSC_SECURITY;
}
APPL_TRACE_DEBUG("%s: nsc_mask: 0x%x", __func__,
avdtp_stream_config.nsc_mask);
if (p_data->api_reg.p_service_name[0] == 0) {
p_service_name = NULL;
} else {
p_service_name = p_data->api_reg.p_service_name;
}
p_scb->suspend_sup = true;
p_scb->recfg_sup = true;
avdtp_stream_config.scb_index = p_scb->hdi;
avdtp_stream_config.p_avdt_ctrl_cback = &bta_av_proc_stream_evt;
/* set up the audio stream control block */
p_scb->p_cos = &bta_av_a2dp_cos;
p_scb->media_type = AVDT_MEDIA_TYPE_AUDIO;
avdtp_stream_config.cfg.psc_mask = AVDT_PSC_TRANS;
avdtp_stream_config.media_type = AVDT_MEDIA_TYPE_AUDIO;
avdtp_stream_config.mtu = MAX_3MBPS_AVDTP_MTU;
btav_a2dp_codec_index_t codec_index_min = BTAV_A2DP_CODEC_INDEX_SOURCE_MIN;
btav_a2dp_codec_index_t codec_index_max = BTAV_A2DP_CODEC_INDEX_SOURCE_MAX;
if (bta_av_cb.features & BTA_AV_FEAT_REPORT) {
avdtp_stream_config.cfg.psc_mask |= AVDT_PSC_REPORT;
avdtp_stream_config.p_report_cback = bta_av_a2dp_report_cback;
}
if (bta_av_cb.features & BTA_AV_FEAT_DELAY_RPT)
avdtp_stream_config.cfg.psc_mask |= AVDT_PSC_DELAY_RPT;
if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) {
avdtp_stream_config.tsep = AVDT_TSEP_SRC;
codec_index_min = BTAV_A2DP_CODEC_INDEX_SOURCE_MIN;
codec_index_max = BTAV_A2DP_CODEC_INDEX_SOURCE_MAX;
} else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) {
avdtp_stream_config.tsep = AVDT_TSEP_SNK;
avdtp_stream_config.p_sink_data_cback = bta_av_sink_data_cback;
codec_index_min = BTAV_A2DP_CODEC_INDEX_SINK_MIN;
codec_index_max = BTAV_A2DP_CODEC_INDEX_SINK_MAX;
}
/* Initialize handles to zero */
for (int xx = 0; xx < BTAV_A2DP_CODEC_INDEX_MAX; xx++) {
p_scb->seps[xx].av_handle = 0;
}
/* keep the configuration in the stream control block */
p_scb->cfg = avdtp_stream_config.cfg;
for (int i = codec_index_min; i < codec_index_max; i++) {
btav_a2dp_codec_index_t codec_index =
static_cast<btav_a2dp_codec_index_t>(i);
if (!bta_av_co_is_supported_codec(codec_index)) {
continue;
}
if (!(*bta_av_a2dp_cos.init)(codec_index, &avdtp_stream_config.cfg)) {
continue;
}
if (AVDT_CreateStream(p_scb->app_id, &p_scb->seps[codec_index].av_handle,
avdtp_stream_config) != AVDT_SUCCESS) {
APPL_TRACE_WARNING(
"%s: bta_handle=0x%x (app_id %d) failed to alloc an SEP index:%d",
__func__, p_scb->hndl, p_scb->app_id, codec_index);
continue;
}
/* Save a copy of the codec */
memcpy(p_scb->seps[codec_index].codec_info,
avdtp_stream_config.cfg.codec_info, AVDT_CODEC_SIZE);
p_scb->seps[codec_index].tsep = avdtp_stream_config.tsep;
if (avdtp_stream_config.tsep == AVDT_TSEP_SNK) {
p_scb->seps[codec_index].p_app_sink_data_cback =
p_data->api_reg.p_app_sink_data_cback;
} else {
/* In case of A2DP SOURCE we don't need a callback to
* handle media packets.
*/
p_scb->seps[codec_index].p_app_sink_data_cback = NULL;
}
}
if (!bta_av_cb.reg_audio) {
bta_av_cb.sdp_a2dp_handle = 0;
bta_av_cb.sdp_a2dp_snk_handle = 0;
if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) {
/* create the SDP records on the 1st audio channel */
bta_av_cb.sdp_a2dp_handle = SDP_CreateRecord();
A2DP_AddRecord(UUID_SERVCLASS_AUDIO_SOURCE, p_service_name, NULL,
A2DP_SUPF_PLAYER, bta_av_cb.sdp_a2dp_handle);
bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
} else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) {
bta_av_cb.sdp_a2dp_snk_handle = SDP_CreateRecord();
A2DP_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_service_name, NULL,
A2DP_SUPF_PLAYER, bta_av_cb.sdp_a2dp_snk_handle);
bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK);
}
/* start listening when A2DP is registered */
if (bta_av_cb.features & BTA_AV_FEAT_RCTG)
bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
/* if the AV and AVK are both supported, it cannot support the CT role
*/
if (bta_av_cb.features & (BTA_AV_FEAT_RCCT)) {
/* if TG is not supported, we need to register to AVCT now */
if ((bta_av_cb.features & (BTA_AV_FEAT_RCTG)) == 0) {
bta_ar_reg_avct();
bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
}
/* create an SDP record as AVRC CT. We create 1.3 for SOURCE
* because we rely on feature bits being scanned by external
* devices more than the profile version itself.
*
* We create 1.4 for SINK since we support browsing.
*/
if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE &&
!is_new_avrcp_enabled()) {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL, NULL,
p_bta_av_cfg->avrc_ct_cat,
(bta_av_cb.features & BTA_AV_FEAT_BROWSE),
AVRC_REV_1_3);
} else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL, NULL,
p_bta_av_cfg->avrc_ct_cat,
(bta_av_cb.features & BTA_AV_FEAT_BROWSE),
AVRC_REV_1_6);
}
}
}
bta_av_cb.reg_audio |= BTA_AV_HNDL_TO_MSK(p_scb->hdi);
APPL_TRACE_DEBUG("%s: reg_audio: 0x%x", __func__, bta_av_cb.reg_audio);
} while (0);
/* call callback with register event */
tBTA_AV bta_av_data;
bta_av_data.registr = registr;
(*bta_av_cb.p_cback)(BTA_AV_REGISTER_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_api_deregister
*
* Description de-register a channel
*
*
* Returns void
*
******************************************************************************/
void bta_av_api_deregister(tBTA_AV_DATA* p_data) {
tBTA_AV_SCB* p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific);
if (p_scb) {
p_scb->deregistering = true;
bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, p_data);
} else {
bta_av_dereg_comp(p_data);
}
}
/*******************************************************************************
*
* Function bta_av_ci_data
*
* Description Forward the BTA_AV_CI_SRC_DATA_READY_EVT to stream state
* machine.
*
*
* Returns void
*
******************************************************************************/
static void bta_av_ci_data(tBTA_AV_DATA* p_data) {
tBTA_AV_SCB* p_scb;
int i;
uint8_t chnl = (uint8_t)p_data->hdr.layer_specific;
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
p_scb = bta_av_cb.p_scb[i];
if (p_scb && p_scb->chnl == chnl) {
bta_av_ssm_execute(p_scb, BTA_AV_SRC_DATA_READY_EVT, p_data);
}
}
}
/*******************************************************************************
*
* Function bta_av_rpc_conn
*
* Description report report channel open
*
* Returns void
*
******************************************************************************/
static void bta_av_rpc_conn(UNUSED_ATTR tBTA_AV_DATA* p_data) {}
/*******************************************************************************
*
* Function bta_av_api_to_ssm
*
* Description forward the API request to stream state machine
*
*
* Returns void
*
******************************************************************************/
static void bta_av_api_to_ssm(tBTA_AV_DATA* p_data) {
uint16_t event =
p_data->hdr.event - BTA_AV_FIRST_A2S_API_EVT + BTA_AV_FIRST_A2S_SSM_EVT;
tBTA_AV_HNDL handle = p_data->hdr.layer_specific;
tBTA_AV_SCB* p_scb = bta_av_hndl_to_scb(handle);
if (p_scb != nullptr) {
bta_av_ssm_execute(p_scb, event, p_data);
}
}
/*******************************************************************************
*
* Function bta_av_chk_start
*
* Description if this is audio channel, check if more than one audio
* channel is connected & already started.
* This function needs to be kept very similar to
* bta_av_chk_2nd_start
*
* Returns true, if need api_start
*
******************************************************************************/
bool bta_av_chk_start(tBTA_AV_SCB* p_scb) {
bool start = false;
if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2) &&
(((p_scb->role & BTA_AV_ROLE_AD_ACP) == 0) || // Outgoing connection or
(bta_av_cb.features & BTA_AV_FEAT_ACP_START))) { // Auto-starting option
// More than one audio channel is connected.
// If this is the 2nd stream as ACP, give INT a chance to issue the START
// command.
for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i];
if (p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) {
start = true;
// May need to update the flush timeout of this already started stream
if (p_scbi->co_started != bta_av_cb.audio_open_cnt) {
p_scbi->co_started = bta_av_cb.audio_open_cnt;
}
}
}
}
LOG_INFO(
"%s: peer %s channel:%d bta_av_cb.audio_open_cnt:%d role:0x%x "
"features:0x%x start:%s",
__func__, p_scb->PeerAddress().ToString().c_str(), p_scb->chnl,
bta_av_cb.audio_open_cnt, p_scb->role, bta_av_cb.features,
logbool(start).c_str());
return start;
}
/*******************************************************************************
*
* Function bta_av_restore_switch
*
* Description assume that the caller of this function already makes
* sure that there's only one ACL connection left
*
* Returns void
*
******************************************************************************/
void bta_av_restore_switch(void) {
tBTA_AV_CB* p_cb = &bta_av_cb;
int i;
uint8_t mask;
APPL_TRACE_DEBUG("%s: reg_audio: 0x%x", __func__, bta_av_cb.reg_audio);
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
mask = BTA_AV_HNDL_TO_MSK(i);
if (p_cb->conn_audio == mask) {
if (p_cb->p_scb[i]) {
BTM_unblock_role_switch_for(p_cb->p_scb[i]->PeerAddress());
}
break;
}
}
}
/*******************************************************************************
*
* Function bta_av_sys_rs_cback
*
* Description Receives the role change event from dm
*
* Returns (BTA_SYS_ROLE_CHANGE, new_role, hci_status, p_bda)
*
******************************************************************************/
static void bta_av_sys_rs_cback(UNUSED_ATTR tBTA_SYS_CONN_STATUS status,
uint8_t id, uint8_t app_id,
const RawAddress& peer_addr) {
int i;
tBTA_AV_SCB* p_scb = NULL;
tHCI_ROLE cur_role;
uint8_t peer_idx = 0;
APPL_TRACE_DEBUG(
"%s: peer %s new_role:%d hci_status:0x%x bta_av_cb.rs_idx:%d", __func__,
peer_addr.ToString().c_str(), id, app_id, bta_av_cb.rs_idx);
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
/* loop through all the SCBs to find matching peer addresses and report the
* role change event */
/* note that more than one SCB (a2dp & vdp) maybe waiting for this event */
p_scb = bta_av_cb.p_scb[i];
if (p_scb && p_scb->PeerAddress() == peer_addr) {
tBTA_AV_ROLE_RES* p_buf =
(tBTA_AV_ROLE_RES*)osi_malloc(sizeof(tBTA_AV_ROLE_RES));
APPL_TRACE_DEBUG(
"%s: peer %s found: new_role:%d, hci_status:0x%x bta_handle:0x%x",
__func__, peer_addr.ToString().c_str(), id, app_id, p_scb->hndl);
p_buf->hdr.event = BTA_AV_ROLE_CHANGE_EVT;
p_buf->hdr.layer_specific = p_scb->hndl;
p_buf->new_role = id;
p_buf->hci_status = app_id;
bta_sys_sendmsg(p_buf);
peer_idx = p_scb->hdi + 1; /* Handle index for the peer_addr */
}
}
/* restore role switch policy, if role switch failed */
if ((HCI_SUCCESS != app_id) &&
(BTM_GetRole(peer_addr, &cur_role) == BTM_SUCCESS) &&
(cur_role == HCI_ROLE_PERIPHERAL)) {
BTM_unblock_role_switch_for(peer_addr);
}
/* if BTA_AvOpen() was called for other device, which caused the role switch
* of the peer_addr, */
/* we need to continue opening process for the BTA_AvOpen(). */
if ((bta_av_cb.rs_idx != 0) && (bta_av_cb.rs_idx != peer_idx)) {
if ((bta_av_cb.rs_idx - 1) < BTA_AV_NUM_STRS) {
p_scb = bta_av_cb.p_scb[bta_av_cb.rs_idx - 1];
}
if (p_scb && p_scb->q_tag == BTA_AV_Q_TAG_OPEN) {
APPL_TRACE_DEBUG("%s: peer %s rs_idx:%d, bta_handle:0x%x q_tag:%d",
__func__, p_scb->PeerAddress().ToString().c_str(),
bta_av_cb.rs_idx, p_scb->hndl, p_scb->q_tag);
if (HCI_SUCCESS == app_id || HCI_ERR_NO_CONNECTION == app_id) {
p_scb->q_info.open.switch_res = BTA_AV_RS_OK;
} else {
APPL_TRACE_ERROR(
"%s: peer %s (p_scb peer %s) role switch failed: new_role:%d "
"hci_status:0x%x",
__func__, peer_addr.ToString().c_str(),
p_scb->PeerAddress().ToString().c_str(), id, app_id);
p_scb->q_info.open.switch_res = BTA_AV_RS_FAIL;
}
/* Continue av open process */
bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open));
}
bta_av_cb.rs_idx = 0;
}
}
/*******************************************************************************
*
* Function bta_av_sco_chg_cback
*
* Description receive & process the SCO connection up/down event from sys.
* call setup also triggers this callback, to suspend av before
* SCO activity happens, or to resume av once call ends.
*
* Returns void
*
******************************************************************************/
static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, uint8_t id,
UNUSED_ATTR uint8_t app_id,
UNUSED_ATTR const RawAddress& peer_addr) {
tBTA_AV_SCB* p_scb;
int i;
tBTA_AV_API_STOP stop;
LOG(INFO) << __func__ << ": status=" << bta_sys_conn_status_text(status)
<< ", num_links=" << +id;
if (id) {
bta_av_cb.sco_occupied = true;
LOG_DEBUG("SCO occupied peer:%s status:%s", PRIVATE_ADDRESS(peer_addr),
bta_sys_conn_status_text(status).c_str());
if (bta_av_cb.features & BTA_AV_FEAT_NO_SCO_SSPD) {
return;
}
/* either BTA_SYS_SCO_OPEN or BTA_SYS_SCO_CLOSE with remaining active SCO */
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
p_scb = bta_av_cb.p_scb[i];
if (p_scb && p_scb->co_started && (!p_scb->sco_suspend)) {
VLOG(1) << __func__ << ": suspending scb:" << i;
/* scb is used and started, not suspended automatically */
p_scb->sco_suspend = true;
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);
}
}
} else {
bta_av_cb.sco_occupied = false;
LOG_DEBUG("SCO unoccupied peer:%s status:%s", PRIVATE_ADDRESS(peer_addr),
bta_sys_conn_status_text(status).c_str());
if (bta_av_cb.features & BTA_AV_FEAT_NO_SCO_SSPD) {
return;
}
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
p_scb = bta_av_cb.p_scb[i];
if (p_scb && p_scb->sco_suspend) /* scb is used and suspended for SCO */
{
VLOG(1) << __func__ << ": starting scb:" << i;
bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL);
}
}
}
}
/*******************************************************************************
*
* Function bta_av_switch_if_needed
*
* Description This function checks if there is another existing AV
* channel that is local as peripheral role.
* If so, role switch and remove it from link policy.
*
* Returns true, if role switch is done
*
******************************************************************************/
bool bta_av_switch_if_needed(tBTA_AV_SCB* p_scb) {
// TODO: A workaround for devices that are connected first, become
// Central, and block follow-up role changes - b/72122792 .
return false;
#if 0
uint8_t role;
bool needed = false;
tBTA_AV_SCB* p_scbi;
int i;
uint8_t mask;
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
mask = BTA_AV_HNDL_TO_MSK(i);
p_scbi = bta_av_cb.p_scb[i];
if (p_scbi && (p_scb->hdi != i) && /* not the original channel */
((bta_av_cb.conn_audio & mask))) /* connected audio */
{
BTM_GetRole(p_scbi->PeerAddress(), &role);
/* this channel is open - clear the role switch link policy for this link
*/
if (HCI_ROLE_CENTRAL != role) {
if (bta_av_cb.features & BTA_AV_FEAT_CENTRAL)
BTM_block_role_switch_for(p_scbi->PeerAddress());
if (BTM_CMD_STARTED !=
BTM_SwitchRole(p_scbi->PeerAddress(), HCI_ROLE_CENTRAL)) {
/* can not switch role on SCBI
* start the timer on SCB - because this function is ONLY called when
* SCB gets API_OPEN */
bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RS_TIME_VAL,
BTA_AV_AVRC_TIMER_EVT, p_scb->hndl);
}
needed = true;
/* mark the original channel as waiting for RS result */
bta_av_cb.rs_idx = p_scb->hdi + 1;
break;
}
}
}
return needed;
#endif
}
/*******************************************************************************
*
* Function bta_av_link_role_ok
*
* Description This function checks if the SCB has existing ACL connection
* If so, check if the link role fits the requirements.
*
* Returns true, if role is ok
*
******************************************************************************/
bool bta_av_link_role_ok(tBTA_AV_SCB* p_scb, uint8_t bits) {
tHCI_ROLE role;
if (BTM_GetRole(p_scb->PeerAddress(), &role) != BTM_SUCCESS) {
LOG_WARN("Unable to find link role for device:%s",
PRIVATE_ADDRESS(p_scb->PeerAddress()));
return true;
}
if (role != HCI_ROLE_CENTRAL && (A2DP_BitsSet(bta_av_cb.conn_audio) > bits)) {
LOG_INFO(
"Switch link role to central peer:%s bta_handle:0x%x current_role:%s"
" conn_audio:0x%x bits:%d features:0x%x",
PRIVATE_ADDRESS(p_scb->PeerAddress()), p_scb->hndl,
RoleText(role).c_str(), bta_av_cb.conn_audio, bits, bta_av_cb.features);
const tBTM_STATUS status = BTM_SwitchRoleToCentral(p_scb->PeerAddress());
switch (status) {
case BTM_CMD_STARTED:
break;
case BTM_MODE_UNSUPPORTED:
case BTM_DEV_RESTRICT_LISTED:
// Role switch can never happen, but indicate to caller
// a result such that a timer will not start to repeatedly
// try something not possible.
LOG_ERROR("Link can never role switch to central device:%s",
PRIVATE_ADDRESS(p_scb->PeerAddress()));
break;
default:
/* can not switch role on SCB - start the timer on SCB */
p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_START;
LOG_ERROR("Unable to switch role to central device:%s error:%s",
PRIVATE_ADDRESS(p_scb->PeerAddress()),
btm_status_text(status).c_str());
return false;
}
}
return true;
}
/*******************************************************************************
*
* Function bta_av_dup_audio_buf
*
* Description dup the audio data to the q_info.a2dp of other audio
* channels
*
* Returns void
*
******************************************************************************/
void bta_av_dup_audio_buf(tBTA_AV_SCB* p_scb, BT_HDR* p_buf) {
/* Test whether there is more than one audio channel connected */
if ((p_buf == NULL) || (bta_av_cb.audio_open_cnt < 2)) return;
uint16_t copy_size = BT_HDR_SIZE + p_buf->len + p_buf->offset;
for (int i = 0; i < BTA_AV_NUM_STRS; i++) {
tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i];
if (i == p_scb->hdi) continue; /* Ignore the original channel */
if ((p_scbi == NULL) || !p_scbi->co_started)
continue; /* Ignore if SCB is not used or started */
if (!(bta_av_cb.conn_audio & BTA_AV_HNDL_TO_MSK(i)))
continue; /* Audio is not connected */
/* Enqueue the data */
BT_HDR* p_new = (BT_HDR*)osi_malloc(copy_size);
memcpy(p_new, p_buf, copy_size);
list_append(p_scbi->a2dp_list, p_new);
if (list_length(p_scbi->a2dp_list) > p_bta_av_cfg->audio_mqs) {
// Drop the oldest packet
bta_av_co_audio_drop(p_scbi->hndl, p_scbi->PeerAddress());
BT_HDR* p_buf_drop = static_cast<BT_HDR*>(list_front(p_scbi->a2dp_list));
list_remove(p_scbi->a2dp_list, p_buf_drop);
osi_free(p_buf_drop);
}
}
}
static void bta_av_non_state_machine_event(uint16_t event,
tBTA_AV_DATA* p_data) {
switch (event) {
case BTA_AV_API_ENABLE_EVT:
bta_av_api_enable(p_data);
break;
case BTA_AV_API_REGISTER_EVT:
bta_av_api_register(p_data);
break;
case BTA_AV_API_DEREGISTER_EVT:
bta_av_api_deregister(p_data);
break;
case BTA_AV_API_DISCONNECT_EVT:
bta_av_api_disconnect(p_data);
break;
case BTA_AV_API_SET_LATENCY_EVT:
bta_av_api_set_latency(p_data);
break;
case BTA_AV_CI_SRC_DATA_READY_EVT:
bta_av_ci_data(p_data);
break;
case BTA_AV_SIG_CHG_EVT:
bta_av_sig_chg(p_data);
break;
case BTA_AV_SIGNALLING_TIMER_EVT:
bta_av_signalling_timer(p_data);
break;
case BTA_AV_SDP_AVRC_DISC_EVT:
bta_av_rc_disc_done(p_data);
break;
case BTA_AV_AVRC_CLOSE_EVT:
bta_av_rc_closed(p_data);
break;
case BTA_AV_AVRC_BROWSE_OPEN_EVT:
bta_av_rc_browse_opened(p_data);
break;
case BTA_AV_AVRC_BROWSE_CLOSE_EVT:
bta_av_rc_browse_closed(p_data);
break;
case BTA_AV_CONN_CHG_EVT:
bta_av_conn_chg(p_data);
break;
case BTA_AV_DEREG_COMP_EVT:
bta_av_dereg_comp(p_data);
break;
case BTA_AV_AVDT_RPT_CONN_EVT:
bta_av_rpc_conn(p_data);
break;
case BTA_AV_API_START_EVT:
bta_av_api_to_ssm(p_data);
break;
case BTA_AV_API_STOP_EVT:
bta_av_api_to_ssm(p_data);
break;
}
}
static void bta_av_better_state_machine(tBTA_AV_CB* p_cb, uint16_t event,
tBTA_AV_DATA* p_data) {
switch (p_cb->state) {
case BTA_AV_INIT_ST:
switch (event) {
case BTA_AV_API_DISABLE_EVT:
bta_av_disable(p_cb, p_data);
break;
case BTA_AV_API_META_RSP_EVT:
bta_av_rc_free_rsp(p_cb, p_data);
break;
case BTA_AV_AVRC_OPEN_EVT:
p_cb->state = BTA_AV_OPEN_ST;
bta_av_rc_opened(p_cb, p_data);
break;
case BTA_AV_AVRC_MSG_EVT:
bta_av_rc_free_browse_msg(p_cb, p_data);
break;
}
break;
case BTA_AV_OPEN_ST:
switch (event) {
case BTA_AV_API_DISABLE_EVT:
p_cb->state = BTA_AV_INIT_ST;
bta_av_disable(p_cb, p_data);
break;
case BTA_AV_API_REMOTE_CMD_EVT:
bta_av_rc_remote_cmd(p_cb, p_data);
break;
case BTA_AV_API_VENDOR_CMD_EVT:
bta_av_rc_vendor_cmd(p_cb, p_data);
break;
case BTA_AV_API_VENDOR_RSP_EVT:
bta_av_rc_vendor_rsp(p_cb, p_data);
break;
case BTA_AV_API_META_RSP_EVT:
bta_av_rc_meta_rsp(p_cb, p_data);
break;
case BTA_AV_API_RC_CLOSE_EVT:
bta_av_rc_close(p_cb, p_data);
break;
case BTA_AV_AVRC_OPEN_EVT:
bta_av_rc_opened(p_cb, p_data);
break;
case BTA_AV_AVRC_MSG_EVT:
bta_av_rc_msg(p_cb, p_data);
break;
case BTA_AV_AVRC_NONE_EVT:
p_cb->state = BTA_AV_INIT_ST;
break;
}
break;
}
}
void bta_av_sm_execute(tBTA_AV_CB* p_cb, uint16_t event, tBTA_AV_DATA* p_data) {
APPL_TRACE_EVENT("%s: AV event=0x%x(%s) state=%d(%s)", __func__, event,
bta_av_evt_code(event), p_cb->state,
bta_av_st_code(p_cb->state));
bta_av_better_state_machine(p_cb, event, p_data);
}
/*******************************************************************************
*
* Function bta_av_hdl_event
*
* Description Advanced audio/video main event handling function.
*
*
* Returns bool
*
******************************************************************************/
bool bta_av_hdl_event(BT_HDR_RIGID* p_msg) {
if (p_msg->event > BTA_AV_LAST_EVT) {
return true; /* to free p_msg */
}
if (p_msg->event >= BTA_AV_FIRST_NSM_EVT) {
APPL_TRACE_VERBOSE("%s: AV nsm event=0x%x(%s)", __func__, p_msg->event,
bta_av_evt_code(p_msg->event));
bta_av_non_state_machine_event(p_msg->event, (tBTA_AV_DATA*)p_msg);
} else if (p_msg->event >= BTA_AV_FIRST_SM_EVT &&
p_msg->event <= BTA_AV_LAST_SM_EVT) {
APPL_TRACE_VERBOSE("%s: AV sm event=0x%x(%s)", __func__, p_msg->event,
bta_av_evt_code(p_msg->event));
/* state machine events */
bta_av_sm_execute(&bta_av_cb, p_msg->event, (tBTA_AV_DATA*)p_msg);
} else {
APPL_TRACE_VERBOSE("%s: bta_handle=0x%x", __func__, p_msg->layer_specific);
/* stream state machine events */
bta_av_ssm_execute(bta_av_hndl_to_scb(p_msg->layer_specific), p_msg->event,
(tBTA_AV_DATA*)p_msg);
}
return true;
}
/*****************************************************************************
* Debug Functions
****************************************************************************/
/*******************************************************************************
*
* Function bta_av_st_code
*
* Description
*
* Returns char *
*
******************************************************************************/
static const char* bta_av_st_code(uint8_t state) {
switch (state) {
case BTA_AV_INIT_ST:
return "INIT";
case BTA_AV_OPEN_ST:
return "OPEN";
default:
return "unknown";
}
}
/*******************************************************************************
*
* Function bta_av_evt_code
*
* Description
*
* Returns char *
*
******************************************************************************/
const char* bta_av_evt_code(uint16_t evt_code) {
switch (evt_code) {
case BTA_AV_API_DISABLE_EVT:
return "API_DISABLE";
case BTA_AV_API_REMOTE_CMD_EVT:
return "API_REMOTE_CMD";
case BTA_AV_API_VENDOR_CMD_EVT:
return "API_VENDOR_CMD";
case BTA_AV_API_VENDOR_RSP_EVT:
return "API_VENDOR_RSP";
case BTA_AV_API_META_RSP_EVT:
return "API_META_RSP_EVT";
case BTA_AV_API_RC_CLOSE_EVT:
return "API_RC_CLOSE";
case BTA_AV_AVRC_OPEN_EVT:
return "AVRC_OPEN";
case BTA_AV_AVRC_MSG_EVT:
return "AVRC_MSG";
case BTA_AV_AVRC_NONE_EVT:
return "AVRC_NONE";
case BTA_AV_API_OPEN_EVT:
return "API_OPEN";
case BTA_AV_API_CLOSE_EVT:
return "API_CLOSE";
case BTA_AV_AP_START_EVT:
return "AP_START";
case BTA_AV_AP_STOP_EVT:
return "AP_STOP";
case BTA_AV_API_RECONFIG_EVT:
return "API_RECONFIG";
case BTA_AV_API_PROTECT_REQ_EVT:
return "API_PROTECT_REQ";
case BTA_AV_API_PROTECT_RSP_EVT:
return "API_PROTECT_RSP";
case BTA_AV_API_RC_OPEN_EVT:
return "API_RC_OPEN";
case BTA_AV_SRC_DATA_READY_EVT:
return "SRC_DATA_READY";
case BTA_AV_CI_SETCONFIG_OK_EVT:
return "CI_SETCONFIG_OK";
case BTA_AV_CI_SETCONFIG_FAIL_EVT:
return "CI_SETCONFIG_FAIL";
case BTA_AV_SDP_DISC_OK_EVT:
return "SDP_DISC_OK";
case BTA_AV_SDP_DISC_FAIL_EVT:
return "SDP_DISC_FAIL";
case BTA_AV_STR_DISC_OK_EVT:
return "STR_DISC_OK";
case BTA_AV_STR_DISC_FAIL_EVT:
return "STR_DISC_FAIL";
case BTA_AV_STR_GETCAP_OK_EVT:
return "STR_GETCAP_OK";
case BTA_AV_STR_GETCAP_FAIL_EVT:
return "STR_GETCAP_FAIL";
case BTA_AV_STR_OPEN_OK_EVT:
return "STR_OPEN_OK";
case BTA_AV_STR_OPEN_FAIL_EVT:
return "STR_OPEN_FAIL";
case BTA_AV_STR_START_OK_EVT:
return "STR_START_OK";
case BTA_AV_STR_START_FAIL_EVT:
return "STR_START_FAIL";
case BTA_AV_STR_CLOSE_EVT:
return "STR_CLOSE";
case BTA_AV_STR_CONFIG_IND_EVT:
return "STR_CONFIG_IND";
case BTA_AV_STR_SECURITY_IND_EVT:
return "STR_SECURITY_IND";
case BTA_AV_STR_SECURITY_CFM_EVT:
return "STR_SECURITY_CFM";
case BTA_AV_STR_WRITE_CFM_EVT:
return "STR_WRITE_CFM";
case BTA_AV_STR_SUSPEND_CFM_EVT:
return "STR_SUSPEND_CFM";
case BTA_AV_STR_RECONFIG_CFM_EVT:
return "STR_RECONFIG_CFM";
case BTA_AV_AVRC_TIMER_EVT:
return "AVRC_TIMER";
case BTA_AV_AVDT_CONNECT_EVT:
return "AVDT_CONNECT";
case BTA_AV_AVDT_DISCONNECT_EVT:
return "AVDT_DISCONNECT";
case BTA_AV_ROLE_CHANGE_EVT:
return "ROLE_CHANGE";
case BTA_AV_AVDT_DELAY_RPT_EVT:
return "AVDT_DELAY_RPT";
case BTA_AV_ACP_CONNECT_EVT:
return "ACP_CONNECT";
case BTA_AV_API_OFFLOAD_START_EVT:
return "OFFLOAD_START";
case BTA_AV_API_OFFLOAD_START_RSP_EVT:
return "OFFLOAD_START_RSP";
case BTA_AV_API_ENABLE_EVT:
return "API_ENABLE";
case BTA_AV_API_REGISTER_EVT:
return "API_REG";
case BTA_AV_API_DEREGISTER_EVT:
return "API_DEREG";
case BTA_AV_API_DISCONNECT_EVT:
return "API_DISCNT";
case BTA_AV_CI_SRC_DATA_READY_EVT:
return "CI_DATA_READY";
case BTA_AV_SIG_CHG_EVT:
return "SIG_CHG";
case BTA_AV_SIGNALLING_TIMER_EVT:
return "SIGNALLING_TIMER";
case BTA_AV_SDP_AVRC_DISC_EVT:
return "SDP_AVRC_DISC";
case BTA_AV_AVRC_CLOSE_EVT:
return "AVRC_CLOSE";
case BTA_AV_AVRC_BROWSE_OPEN_EVT:
return "AVRC_BROWSE_OPEN";
case BTA_AV_AVRC_BROWSE_CLOSE_EVT:
return "AVRC_BROWSE_CLOSE";
case BTA_AV_CONN_CHG_EVT:
return "CONN_CHG";
case BTA_AV_DEREG_COMP_EVT:
return "DEREG_COMP";
case BTA_AV_AVDT_RPT_CONN_EVT:
return "RPT_CONN";
case BTA_AV_API_START_EVT:
return "API_START";
case BTA_AV_API_STOP_EVT:
return "API_STOP";
default:
return "unknown";
}
}
void bta_debug_av_dump(int fd) {
if (appl_trace_level < BT_TRACE_LEVEL_DEBUG) return;
dprintf(fd, "\nBTA AV State:\n");
dprintf(fd, " State Machine State: %s\n", bta_av_st_code(bta_av_cb.state));
dprintf(fd, " SDP A2DP source handle: %d\n", bta_av_cb.sdp_a2dp_handle);
dprintf(fd, " SDP A2DP sink handle: %d\n", bta_av_cb.sdp_a2dp_snk_handle);
dprintf(fd, " Features: 0x%x\n", bta_av_cb.features);
dprintf(fd, " SDP handle: %d\n", bta_av_cb.handle);
dprintf(fd, " Disabling: %s\n", bta_av_cb.disabling ? "true" : "false");
dprintf(fd, " SCO occupied: %s\n",
bta_av_cb.sco_occupied ? "true" : "false");
dprintf(fd, " Connected audio channels: %d\n", bta_av_cb.audio_open_cnt);
dprintf(fd, " Connected audio channels mask: 0x%x\n", bta_av_cb.conn_audio);
dprintf(fd, " Registered audio channels mask: 0x%x\n", bta_av_cb.reg_audio);
dprintf(fd, " Connected LCBs mask: 0x%x\n", bta_av_cb.conn_lcb);
dprintf(fd, " Offload start pending handle: %d\n",
bta_av_cb.offload_start_pending_hndl);
dprintf(fd, " Offload started handle: %d\n", bta_av_cb.offload_started_hndl);
for (size_t i = 0; i < sizeof(bta_av_cb.lcb) / sizeof(bta_av_cb.lcb[0]);
i++) {
const tBTA_AV_LCB& lcb = bta_av_cb.lcb[i];
if (lcb.addr.IsEmpty()) {
continue;
}
dprintf(fd, "\n Link control block: %zu peer: %s\n", i,
lcb.addr.ToString().c_str());
dprintf(fd, " Connected stream handle mask: 0x%x\n", lcb.conn_msk);
dprintf(fd, " Index(+1) to LCB: %d\n", lcb.lidx);
}
for (size_t i = 0; i < BTA_AV_NUM_STRS; i++) {
const tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[i];
if (p_scb == nullptr) {
continue;
}
if (p_scb->PeerAddress().IsEmpty()) {
continue;
}
dprintf(fd, "\n BTA ID: %zu peer: %s\n", i,
p_scb->PeerAddress().ToString().c_str());
dprintf(fd, " SDP discovery started: %s\n",
p_scb->sdp_discovery_started ? "true" : "false");
for (size_t j = 0; j < BTAV_A2DP_CODEC_INDEX_MAX; j++) {
const tBTA_AV_SEP& sep = p_scb->seps[j];
if (sep.av_handle == 0) {
continue;
}
dprintf(fd, " SEP ID: %zu\n", j);
dprintf(fd, " SEP AVDTP handle: %d\n", sep.av_handle);
dprintf(fd, " Local SEP type: %d\n", sep.tsep);
dprintf(fd, " Codec: %s\n", A2DP_CodecName(sep.codec_info));
}
dprintf(fd, " BTA info tag: %d\n", p_scb->q_tag);
dprintf(fd, " API Open peer: %s\n",
p_scb->q_info.open.bd_addr.ToString().c_str());
dprintf(fd, " Use AVRCP: %s\n",
p_scb->q_info.open.use_rc ? "true" : "false");
dprintf(fd, " Switch result: %d\n", p_scb->q_info.open.switch_res);
dprintf(fd, " Initiator UUID: 0x%x\n", p_scb->q_info.open.uuid);
dprintf(fd, " Saved API Open peer: %s\n",
p_scb->open_api.bd_addr.ToString().c_str());
dprintf(fd, " Use AVRCP: %s\n",
p_scb->open_api.use_rc ? "true" : "false");
dprintf(fd, " Switch result: %d\n", p_scb->open_api.switch_res);
dprintf(fd, " Initiator UUID: 0x%x\n", p_scb->open_api.uuid);
dprintf(fd, " Link signalling timer: %s\n",
alarm_is_scheduled(p_scb->link_signalling_timer) ? "Scheduled"
: "Not scheduled");
dprintf(fd, " Accept signalling timer: %s\n",
alarm_is_scheduled(p_scb->accept_signalling_timer)
? "Scheduled"
: "Not scheduled");
// TODO: Print p_scb->sep_info[], cfg, avrc_ct_timer, current_codec ?
dprintf(fd, " L2CAP Channel ID: %d\n", p_scb->l2c_cid);
dprintf(fd, " Stream MTU: %d\n", p_scb->stream_mtu);
dprintf(fd, " AVDTP version: 0x%x\n", p_scb->AvdtpVersion());
dprintf(fd, " Media type: %d\n", p_scb->media_type);
dprintf(fd, " Congested: %s\n", p_scb->cong ? "true" : "false");
dprintf(fd, " Open status: %d\n", p_scb->open_status);
dprintf(fd, " Channel: %d\n", p_scb->chnl);
dprintf(fd, " BTA handle: 0x%x\n", p_scb->hndl);
dprintf(fd, " Protocol service capabilities mask: 0x%x\n",
p_scb->cur_psc_mask);
dprintf(fd, " AVDTP handle: %d\n", p_scb->avdt_handle);
dprintf(fd, " Stream control block index: %d\n", p_scb->hdi);
dprintf(fd, " State machine state: %s(%d)\n",
bta_av_sst_code(p_scb->state), p_scb->state);
dprintf(fd, " AVDTP label: 0x%x\n", p_scb->avdt_label);
dprintf(fd, " Application ID: %d\n", p_scb->app_id);
dprintf(fd, " Role: 0x%x\n", p_scb->role);
dprintf(fd, " Queued L2CAP buffers: %d\n", p_scb->l2c_bufs);
dprintf(fd, " AVRCP allowed: %s\n", p_scb->use_rc ? "true" : "false");
dprintf(fd, " Stream started: %s\n", p_scb->started ? "true" : "false");
dprintf(fd, " Stream call-out started: %d\n", p_scb->co_started);
dprintf(fd, " AVDTP Reconfig supported: %s\n",
p_scb->recfg_sup ? "true" : "false");
dprintf(fd, " AVDTP Suspend supported: %s\n",
p_scb->suspend_sup ? "true" : "false");
dprintf(fd, " Deregistering: %s\n",
p_scb->deregistering ? "true" : "false");
dprintf(fd, " SCO automatic Suspend: %s\n",
p_scb->sco_suspend ? "true" : "false");
dprintf(fd, " Incoming/outgoing connection collusion mask: 0x%x\n",
p_scb->coll_mask);
dprintf(fd, " Wait mask: 0x%x\n", p_scb->wait);
dprintf(fd, " Don't use RTP header: %s\n",
p_scb->no_rtp_header ? "true" : "false");
dprintf(fd, " Intended UUID of Initiator to connect to: 0x%x\n",
p_scb->uuid_int);
}
}
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