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bta_av_main.c
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bta_av_main.c
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/******************************************************************************
*
* Copyright (C) 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.
*
******************************************************************************/
#include <assert.h>
#include <string.h>
#include "common/bt_target.h"
#include "common/bt_trace.h"
#include "osi/allocator.h"
#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
#include "bta_av_int.h"
#include "bta/utl.h"
#include "stack/l2c_api.h"
#include "stack/l2cdefs.h"
#include "bta/bta_av_co.h"
#include "stack/a2d_api.h"
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
#include "bta/bta_ar_api.h"
#endif
#include "osi/osi.h"
/*****************************************************************************
** Constants and types
*****************************************************************************/
/* AVDTP protocol timeout values */
#define BTIF_AVK_SERVICE_NAME "Advanced Audio Sink"
#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
/* state machine states */
enum {
BTA_AV_INIT_ST,
BTA_AV_OPEN_ST
};
/* state machine action enumeration list */
enum {
BTA_AV_DISABLE,
BTA_AV_RC_OPENED,
BTA_AV_RC_REMOTE_CMD,
BTA_AV_RC_VENDOR_CMD,
BTA_AV_RC_VENDOR_RSP,
BTA_AV_RC_FREE_RSP,
BTA_AV_RC_FREE_MSG,
BTA_AV_RC_META_RSP,
BTA_AV_RC_MSG,
BTA_AV_RC_CLOSE,
BTA_AV_NUM_ACTIONS
};
#define BTA_AV_IGNORE BTA_AV_NUM_ACTIONS
/* type for action functions */
typedef void (*tBTA_AV_ACTION)(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data);
/* action functions */
const tBTA_AV_ACTION bta_av_action[] = {
bta_av_disable,
bta_av_rc_opened,
bta_av_rc_remote_cmd,
bta_av_rc_vendor_cmd,
bta_av_rc_vendor_rsp,
bta_av_rc_free_rsp,
bta_av_rc_free_msg,
bta_av_rc_meta_rsp,
bta_av_rc_msg,
bta_av_rc_close,
NULL
};
/* state table information */
#define BTA_AV_ACTION_COL 0 /* position of actions */
#define BTA_AV_NEXT_STATE 1 /* position of next state */
#define BTA_AV_NUM_COLS 2 /* number of columns in state tables */
/* state table for init state */
static const UINT8 bta_av_st_init[][BTA_AV_NUM_COLS] = {
/* Event Action 1 Next state */
/* API_DISABLE_EVT */ {BTA_AV_DISABLE, BTA_AV_INIT_ST },
/* API_REMOTE_CMD_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
/* API_VENDOR_CMD_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
/* API_VENDOR_RSP_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
/* API_META_RSP_EVT */ {BTA_AV_RC_FREE_RSP, BTA_AV_INIT_ST },
/* API_RC_CLOSE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
/* AVRC_OPEN_EVT */ {BTA_AV_RC_OPENED, BTA_AV_OPEN_ST },
/* AVRC_MSG_EVT */ {BTA_AV_RC_FREE_MSG, BTA_AV_INIT_ST },
/* AVRC_NONE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
};
/* state table for open state */
static const UINT8 bta_av_st_open[][BTA_AV_NUM_COLS] = {
/* Event Action 1 Next state */
/* API_DISABLE_EVT */ {BTA_AV_DISABLE, BTA_AV_INIT_ST },
/* API_REMOTE_CMD_EVT */ {BTA_AV_RC_REMOTE_CMD, BTA_AV_OPEN_ST },
/* API_VENDOR_CMD_EVT */ {BTA_AV_RC_VENDOR_CMD, BTA_AV_OPEN_ST },
/* API_VENDOR_RSP_EVT */ {BTA_AV_RC_VENDOR_RSP, BTA_AV_OPEN_ST },
/* API_META_RSP_EVT */ {BTA_AV_RC_META_RSP, BTA_AV_OPEN_ST },
/* API_RC_CLOSE_EVT */ {BTA_AV_RC_CLOSE, BTA_AV_OPEN_ST },
/* AVRC_OPEN_EVT */ {BTA_AV_RC_OPENED, BTA_AV_OPEN_ST },
/* AVRC_MSG_EVT */ {BTA_AV_RC_MSG, BTA_AV_OPEN_ST },
/* AVRC_NONE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST },
};
/* type for state table */
typedef const UINT8 (*tBTA_AV_ST_TBL)[BTA_AV_NUM_COLS];
/* state table */
static const tBTA_AV_ST_TBL bta_av_st_tbl[] = {
bta_av_st_init,
bta_av_st_open
};
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);
#if (BTA_AV_SINK_INCLUDED == TRUE)
static void bta_av_api_sink_enable(tBTA_AV_DATA *p_data);
static void bta_av_api_get_delay_value(tBTA_AV_DATA *p_data);
#endif
static void bta_av_ci_data(tBTA_AV_DATA *p_data);
#if (AVDT_REPORTING == TRUE)
static void bta_av_rpc_conn(tBTA_AV_DATA *p_data);
#endif
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 id, UINT8
app_id, BD_ADDR peer_addr);
static void bta_av_sys_rs_cback (tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr);
/* action functions */
const tBTA_AV_NSM_ACT bta_av_nsm_act[] = {
bta_av_api_enable, /* BTA_AV_API_ENABLE_EVT */
bta_av_api_register, /* BTA_AV_API_REGISTER_EVT */
bta_av_api_deregister, /* BTA_AV_API_DEREGISTER_EVT */
bta_av_api_disconnect, /* BTA_AV_API_DISCONNECT_EVT */
bta_av_ci_data, /* BTA_AV_CI_SRC_DATA_READY_EVT */
bta_av_sig_chg, /* BTA_AV_SIG_CHG_EVT */
bta_av_sig_timer, /* BTA_AV_SIG_TIMER_EVT */
bta_av_rc_disc_done, /* BTA_AV_SDP_AVRC_DISC_EVT */
bta_av_rc_closed, /* BTA_AV_AVRC_CLOSE_EVT */
bta_av_conn_chg, /* BTA_AV_CONN_CHG_EVT */
bta_av_dereg_comp, /* BTA_AV_DEREG_COMP_EVT */
#if (BTA_AV_SINK_INCLUDED == TRUE)
bta_av_api_sink_enable, /* BTA_AV_API_SINK_ENABLE_EVT */
bta_av_api_get_delay_value, /* BTA_AV_API_GET_DELAY_VALUE_EVT */
#endif
#if (AVDT_REPORTING == TRUE)
bta_av_rpc_conn, /* BTA_AV_AVDT_RPT_CONN_EVT */
#endif
bta_av_api_to_ssm, /* BTA_AV_API_START_EVT */
bta_av_api_to_ssm, /* BTA_AV_API_STOP_EVT */
bta_av_api_to_ssm, /* BTA_AV_API_SET_DELAY_VALUE_EVT */
};
/*****************************************************************************
** Global data
*****************************************************************************/
/* AV control block */
#if BTA_DYNAMIC_MEMORY == FALSE
tBTA_AV_CB bta_av_cb;
#else
tBTA_AV_CB *bta_av_cb_ptr;
#endif
/*******************************************************************************
**
** Function bta_av_timer_cback
**
** Description forward the event to stream state machine
**
** Returns void
**
*******************************************************************************/
static void bta_av_timer_cback(void *p_tle)
{
BT_HDR *p_buf;
TIMER_LIST_ENT *p = (TIMER_LIST_ENT *)p_tle;
int xx;
tBTA_AV_SCB *p_scb = NULL;
/* find the SCB that has the timer */
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
if (bta_av_cb.p_scb[xx] && &(bta_av_cb.p_scb[xx]->timer) == p) {
p_scb = bta_av_cb.p_scb[xx];
break;
}
}
if (p_scb && (p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
/* send the event through the audio state machine.
* only when the audio SM is open, the main SM opens the RC connection as INT */
p_buf->event = p->event;
p_buf->layer_specific = p_scb->hndl;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_av_api_enable
**
** Description Handle an API enable event.
**
**
** Returns void
**
*******************************************************************************/
static void bta_av_api_enable(tBTA_AV_DATA *p_data)
{
int i;
tBTA_AV_ENABLE enable;
/* initialize control block */
memset(&bta_av_cb, 0, sizeof(tBTA_AV_CB));
for (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.sec_mask = p_data->api_enable.sec_mask;
enable.features = bta_av_cb.features;
/* Register for SCO change event */
if (!(bta_av_cb.features & BTA_AV_FEAT_NO_SCO_SSPD)) {
bta_sys_sco_register(bta_av_sco_chg_cback);
}
/* call callback with enable event */
(*bta_av_cb.p_cback)(BTA_AV_ENABLE_EVT, (tBTA_AV *)&enable);
}
/*******************************************************************************
**
** Function bta_av_addr_to_scb
**
** Description find the stream control block by the peer addr
**
** Returns void
**
*******************************************************************************/
static tBTA_AV_SCB *bta_av_addr_to_scb(BD_ADDR 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 (!bdcmp(bd_addr, bta_av_cb.p_scb[xx]->peer_addr)) {
p_scb = bta_av_cb.p_scb[xx];
break;
}
}
}
return p_scb;
}
/*******************************************************************************
**
** 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 handle)
{
tBTA_AV_HNDL hndl = (tBTA_AV_HNDL)handle;
tBTA_AV_SCB *p_scb = NULL;
UINT8 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)
{
tBTA_AV_SCB *p_ret = NULL;
int xx;
tBTA_AV_STATUS sts = BTA_AV_SUCCESS;
if (chnl == BTA_AV_CHNL_VIDEO) {
if (p_bta_av_cfg->p_act_tbl == NULL || p_bta_av_cfg->p_reg == NULL) {
APPL_TRACE_ERROR("Video streaming not supported");
sts = BTA_AV_FAIL;
} else {
/* allow only one Video channel */
if (bta_av_cb.reg_video) {
APPL_TRACE_ERROR("Already registered");
sts = BTA_AV_FAIL;
}
}
} else if (chnl != BTA_AV_CHNL_AUDIO) {
APPL_TRACE_ERROR("bad channel: %d\n", chnl);
sts = BTA_AV_FAIL;
}
if (sts == BTA_AV_SUCCESS) {
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
if (bta_av_cb.p_scb[xx] == NULL) {
/* found an empty spot */
p_ret = (tBTA_AV_SCB *)osi_malloc(sizeof(tBTA_AV_SCB));
if (p_ret) {
memset(p_ret, 0, 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->a2d_list = list_new(NULL);
bta_av_cb.p_scb[xx] = p_ret;
}
break;
}
}
}
return p_ret;
}
/*******************************************************************************
**
** Function bta_av_free_scb
**
** Description free stream control block,
**
**
** Returns void
**
*******************************************************************************/
UNUSED_ATTR static void bta_av_free_scb(tBTA_AV_SCB *p_scb)
{
// NOTE(google) This free currently is not called
assert(p_scb != NULL);
list_free(p_scb->a2d_list);
osi_free(p_scb);
}
/*******************************************************************************
*******************************************************************************/
void bta_av_conn_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data)
{
tBTA_AV_STR_MSG *p_msg;
UINT16 evt = 0;
tBTA_AV_SCB *p_scb = NULL;
UNUSED(handle);
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
if (event == BTA_AR_AVDT_CONN_EVT ||
event == AVDT_CONNECT_IND_EVT || event == AVDT_DISCONNECT_IND_EVT)
#else
if (event == AVDT_CONNECT_IND_EVT || event == AVDT_DISCONNECT_IND_EVT)
#endif
{
evt = BTA_AV_SIG_CHG_EVT;
if (AVDT_DISCONNECT_IND_EVT == event) {
p_scb = bta_av_addr_to_scb(bd_addr);
}
else if (AVDT_CONNECT_IND_EVT == event) {
APPL_TRACE_DEBUG("CONN_IND is ACP:%d\n", p_data->hdr.err_param);
}
if ((p_msg = (tBTA_AV_STR_MSG *) osi_malloc((UINT16) (sizeof(tBTA_AV_STR_MSG)))) != NULL) {
p_msg->hdr.event = evt;
p_msg->hdr.layer_specific = event;
p_msg->hdr.offset = p_data->hdr.err_param;
bdcpy(p_msg->bd_addr, bd_addr);
if (p_scb) {
APPL_TRACE_DEBUG("scb hndl x%x, role x%x\n", p_scb->hndl, p_scb->role);
}
APPL_TRACE_DEBUG("conn_cback bd_addr:%02x-%02x-%02x-%02x-%02x-%02x\n",
bd_addr[0], bd_addr[1],
bd_addr[2], bd_addr[3],
bd_addr[4], bd_addr[5]);
bta_sys_sendmsg(p_msg);
}
}
}
#if AVDT_REPORTING == TRUE
/*******************************************************************************
**
** Function bta_av_a2dp_report_cback
**
** Description A2DP report callback.
**
** Returns void
**
*******************************************************************************/
static void bta_av_a2dp_report_cback(UINT8 handle, AVDT_REPORT_TYPE type,
tAVDT_REPORT_DATA *p_data)
{
UNUSED(handle);
UNUSED(type);
UNUSED(p_data);
/* Do not need to handle report data for now.
* This empty function is here for conformance reasons. */
}
#endif
#if (BTA_AV_SINK_INCLUDED == TRUE)
/*******************************************************************************
**
** Function bta_av_api_sink_enable
**
** Description activate, deactive A2DP Sink,
**
** Returns void
**
*******************************************************************************/
static void bta_av_api_sink_enable(tBTA_AV_DATA *p_data)
{
UINT16 activate_sink = 0;
activate_sink = p_data->hdr.layer_specific;
APPL_TRACE_DEBUG("bta_av_api_sink_enable %d \n", activate_sink)
char p_service_name[BTA_SERVICE_NAME_LEN + 1];
BCM_STRNCPY_S(p_service_name, BTIF_AVK_SERVICE_NAME, BTA_SERVICE_NAME_LEN);
p_service_name[BTA_SERVICE_NAME_LEN] = '\0';
if (activate_sink) {
AVDT_SINK_Activate();
if (bta_av_cb.sdp_a2d_snk_handle == 0) {
bta_av_cb.sdp_a2d_snk_handle = SDP_CreateRecord();
A2D_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_service_name, NULL,
A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_snk_handle);
bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK);
}
} else {
AVDT_SINK_Deactivate();
if (bta_av_cb.sdp_a2d_snk_handle != 0) {
SDP_DeleteRecord(bta_av_cb.sdp_a2d_snk_handle);
bta_av_cb.sdp_a2d_snk_handle = 0;
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
}
}
}
/*******************************************************************************
**
** Function bta_av_api_get_delay_value
**
** Description Get delay reporting value
**
**
** Returns void
**
*******************************************************************************/
static void bta_av_api_get_delay_value(tBTA_AV_DATA *p_data)
{
UNUSED(p_data);
tBTA_AV_DELAY delay;
delay.delay_value = AVDT_GetDelayValue();
/* call callback with get delay value event */
(*bta_av_cb.p_cback)(BTA_AV_GET_DELAY_VALUE_EVT, (tBTA_AV *)&delay);
}
#endif
/*******************************************************************************
**
** 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 */
tAVDT_REG reg;
tAVDT_CS cs;
char *p_service_name;
tBTA_AV_CODEC codec_type;
tBTA_UTL_COD cod;
UINT8 index = 0;
char p_avk_service_name[BTA_SERVICE_NAME_LEN + 1];
BCM_STRNCPY_S(p_avk_service_name, BTIF_AVK_SERVICE_NAME, BTA_SERVICE_NAME_LEN);
p_avk_service_name[BTA_SERVICE_NAME_LEN] = '\0';
memset(&cs, 0, sizeof(tAVDT_CS));
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;
registr.p_bta_av_cos = p_data->api_reg.bta_av_cos;
registr.p_bta_avrc_cos = p_data->api_reg.bta_avrc_cos;
// set the avrc call-out functions
bta_av_cb.p_rc_cos = p_data->api_reg.bta_avrc_cos;
do {
p_scb = bta_av_alloc_scb(registr.chnl);
if (p_scb == NULL) {
APPL_TRACE_ERROR("failed to alloc SCB");
break;
}
registr.hndl = p_scb->hndl;
p_scb->app_id = registr.app_id;
/* initialize the stream control block */
p_scb->timer.p_cback = (TIMER_CBACK *)&bta_av_timer_cback;
registr.status = BTA_AV_SUCCESS;
if ((bta_av_cb.reg_audio + bta_av_cb.reg_video) == 0) {
/* the first channel registered. register to AVDTP */
reg.ctrl_mtu = p_bta_av_cfg->sig_mtu;
reg.ret_tout = BTA_AV_RET_TOUT;
reg.sig_tout = BTA_AV_SIG_TOUT;
reg.idle_tout = BTA_AV_IDLE_TOUT;
reg.sec_mask = bta_av_cb.sec_mask;
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
bta_ar_reg_avdt(®, bta_av_conn_cback, BTA_ID_AV);
#endif
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 */
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
(UINT8)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), BTA_ID_AV);
if (p_data->api_reg.tsep == AVDT_TSEP_SRC) {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target\n", NULL,
p_bta_av_cfg->avrc_src_tg_cat, BTA_ID_AV, p_bta_av_cfg->avrc_br);
} else {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target\n", NULL,
p_bta_av_cfg->avrc_snk_tg_cat, BTA_ID_AV, p_bta_av_cfg->avrc_br);
}
#endif
}
/* Set the Calss of Device (Audio & Capturing/Rendering service class bit) */
if (p_data->api_reg.tsep == AVDT_TSEP_SRC) {
cod.service = BTM_COD_SERVICE_CAPTURING | BTM_COD_SERVICE_AUDIO;
cod.major = BTM_COD_MAJOR_AUDIO;
cod.minor = BTM_COD_MINOR_UNCLASSIFIED;
} else {
#if (BTA_AV_SINK_INCLUDED == TRUE)
cod.service = BTM_COD_SERVICE_RENDERING | BTM_COD_SERVICE_AUDIO;
cod.major = BTM_COD_MAJOR_AUDIO;
cod.minor = BTM_COD_MINOR_LOUDSPEAKER;
#endif
}
utl_set_device_class(&cod, BTA_UTL_SET_COD_ALL);
} /* if 1st channel */
/* get stream configuration and create stream */
/* memset(&cs.cfg,0,sizeof(tAVDT_CFG)); */
cs.cfg.num_codec = 1;
cs.tsep = p_data->api_reg.tsep;
/*
* memset of cs takes care setting call back pointers to null.
cs.p_data_cback = NULL;
cs.p_report_cback = NULL;
*/
cs.nsc_mask = AVDT_NSC_RECONFIG |
((bta_av_cb.features & BTA_AV_FEAT_PROTECT) ? 0 : AVDT_NSC_SECURITY);
APPL_TRACE_DEBUG("nsc_mask: 0x%x\n", cs.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;
cs.p_ctrl_cback = bta_av_dt_cback[p_scb->hdi];
if (registr.chnl == BTA_AV_CHNL_AUDIO) {
/* set up the audio stream control block */
p_scb->p_act_tbl = (const tBTA_AV_ACT *)bta_av_a2d_action;
p_scb->p_cos = registr.p_bta_av_cos;
p_scb->media_type = AVDT_MEDIA_AUDIO;
cs.cfg.psc_mask = AVDT_PSC_TRANS;
cs.media_type = AVDT_MEDIA_AUDIO;
cs.mtu = p_bta_av_cfg->audio_mtu;
cs.flush_to = L2CAP_DEFAULT_FLUSH_TO;
#if AVDT_REPORTING == TRUE
if (bta_av_cb.features & BTA_AV_FEAT_REPORT) {
cs.cfg.psc_mask |= AVDT_PSC_REPORT;
cs.p_report_cback = bta_av_a2dp_report_cback;
#if AVDT_MULTIPLEXING == TRUE
cs.cfg.mux_tsid_report = 2;
#endif
}
#endif
if (bta_av_cb.features & BTA_AV_FEAT_DELAY_RPT) {
cs.cfg.psc_mask |= AVDT_PSC_DELAY_RPT;
a2d_set_avdt_sdp_ver(AVDT_VERSION_SYNC);
a2d_set_a2dp_sdp_ver(A2D_VERSION_1_4);
}
/* keep the configuration in the stream control block */
memcpy(&p_scb->cfg, &cs.cfg, sizeof(tAVDT_CFG));
while (index < BTA_AV_MAX_SEPS &&
(p_scb->p_cos->init)(&codec_type, cs.cfg.codec_info,
&cs.cfg.num_protect, cs.cfg.protect_info, p_data->api_reg.tsep) == TRUE) {
#if (BTA_AV_SINK_INCLUDED == TRUE)
if (p_data->api_reg.tsep == AVDT_TSEP_SNK) {
cs.p_data_cback = bta_av_stream_data_cback;
}
APPL_TRACE_DEBUG(" SEP Type = %d\n", cs.tsep);
#endif
if (AVDT_CreateStream(&p_scb->seps[index].av_handle, &cs) == AVDT_SUCCESS) {
p_scb->seps[index].codec_type = codec_type;
#if (BTA_AV_SINK_INCLUDED == TRUE)
p_scb->seps[index].tsep = cs.tsep;
if (cs.tsep == AVDT_TSEP_SNK) {
p_scb->seps[index].p_app_data_cback = p_data->api_reg.p_app_data_cback;
} else {
p_scb->seps[index].p_app_data_cback = NULL; /* In case of A2DP SOURCE we don't need a callback to handle media packets */
}
#endif
APPL_TRACE_DEBUG("audio[%d] av_handle: %d codec_type: %d\n",
index, p_scb->seps[index].av_handle, p_scb->seps[index].codec_type);
index++;
} else {
break;
}
}
if (!bta_av_cb.reg_audio) {
if (p_data->api_reg.tsep == AVDT_TSEP_SRC) {
/* create the SDP records on the 1st audio channel */
bta_av_cb.sdp_a2d_handle = SDP_CreateRecord();
A2D_AddRecord(UUID_SERVCLASS_AUDIO_SOURCE, p_service_name, NULL,
A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_handle);
bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
} else {
#if (BTA_AV_SINK_INCLUDED == TRUE)
bta_av_cb.sdp_a2d_snk_handle = SDP_CreateRecord();
A2D_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_avk_service_name, NULL,
A2D_SUPF_PLAYER, bta_av_cb.sdp_a2d_snk_handle);
bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK);
#endif
}
/* 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) {
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu,
(UINT8)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), BTA_ID_AV);
#endif
}
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
/* create an SDP record as AVRC CT. */
if (p_data->api_reg.tsep == AVDT_TSEP_SRC) {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, "AV Remote Control Controller\n", NULL,
p_bta_av_cfg->avrc_src_ct_cat, BTA_ID_AV, p_bta_av_cfg->avrc_br);
} else {
bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, "AV Remote Control Controller\n", NULL,
p_bta_av_cfg->avrc_snk_ct_cat, BTA_ID_AV, p_bta_av_cfg->avrc_br);
}
#endif
}
}
bta_av_cb.reg_audio |= BTA_AV_HNDL_TO_MSK(p_scb->hdi);
APPL_TRACE_DEBUG("reg_audio: 0x%x\n", bta_av_cb.reg_audio);
} else {
bta_av_cb.reg_video = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
bta_av_cb.sdp_vdp_handle = SDP_CreateRecord();
/* register the video channel */
/* no need to verify the function pointer here. it's verified prior */
(*p_bta_av_cfg->p_reg)(&cs, p_service_name, p_scb);
}
} while (0);
/* call callback with register event */
(*bta_av_cb.p_cback)(BTA_AV_REGISTER_EVT, (tBTA_AV *)®istr);
}
/*******************************************************************************
**
** 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->deregistring = 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 chnl = (UINT8)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
**
*******************************************************************************/
#if (AVDT_REPORTING == TRUE)
static void bta_av_rpc_conn(tBTA_AV_DATA *p_data)
{
UNUSED(p_data);
}
#endif
/*******************************************************************************
**
** 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)
{
int xx;
UINT16 event = p_data->hdr.event - BTA_AV_FIRST_A2S_API_EVT + BTA_AV_FIRST_A2S_SSM_EVT;
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
bta_av_ssm_execute(bta_av_cb.p_scb[xx], 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.
**
** Returns TRUE, if need api_start
**
*******************************************************************************/
BOOLEAN bta_av_chk_start(tBTA_AV_SCB *p_scb)
{
BOOLEAN start = FALSE;
tBTA_AV_SCB *p_scbi;
int i;
if (p_scb->chnl == BTA_AV_CHNL_AUDIO) {
if ((bta_av_cb.audio_open_cnt >= 2) &&
((0 == (p_scb->role & BTA_AV_ROLE_AD_ACP)) || /* 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 (i = 0; i < BTA_AV_NUM_STRS; i++) {
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;
L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] );
}
}
}
}
}
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 mask;
APPL_TRACE_DEBUG("reg_audio: 0x%x\n", 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]) {
bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, p_cb->p_scb[i]->peer_addr);
}
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 (tBTA_SYS_CONN_STATUS status, UINT8 id, UINT8 app_id, BD_ADDR peer_addr)
{
int i;
tBTA_AV_SCB *p_scb = NULL;
tBTA_AV_ROLE_RES *p_buf;
UINT8 cur_role;
UINT8 peer_idx = 0;
UNUSED(status);
APPL_TRACE_DEBUG("bta_av_sys_rs_cback: %d\n", 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 && (bdcmp (peer_addr, p_scb->peer_addr) == 0) &&
(p_buf = (tBTA_AV_ROLE_RES *) osi_malloc(sizeof(tBTA_AV_ROLE_RES))) != NULL) {
APPL_TRACE_DEBUG("new_role:%d, hci_status:x%x hndl: x%x\n", id, app_id, p_scb->hndl);
/*
if ((id != BTM_ROLE_MASTER) && (app_id != HCI_SUCCESS))
{
bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_MASTER_SLAVE_SWITCH|HCI_ENABLE_SNIFF_MODE), p_scb->peer_addr);
}
*/
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 == BTM_ROLE_SLAVE) ) {
bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, 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 ("bta_av_sys_rs_cback: rs_idx(%d), hndl:x%x q_tag: %d\n",
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 {
p_scb->q_info.open.switch_res = BTA_AV_RS_FAIL;
}
/* Continue av open process */
bta_av_do_disc_a2d (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 id, UINT8
app_id, BD_ADDR peer_addr)
{
tBTA_AV_SCB *p_scb;
int i;
tBTA_AV_API_STOP stop;
UNUSED(app_id);
UNUSED(peer_addr);
APPL_TRACE_DEBUG("bta_av_sco_chg_cback:%d status:%d\n", id, status);
if (id) {
bta_av_cb.sco_occupied = TRUE;
/* 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 == FALSE)) {
APPL_TRACE_DEBUG("suspending scb:%d\n", i);
/* scb is used and started, not suspended automatically */
p_scb->sco_suspend = TRUE;