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2612854838
esp-idf/components/bt/bluedroid/bta/av/bta_av_act.c
wangmengyang 2612854838 component/bt: implement AVRCP Target APIs 
1. Add more notification events to the enum according to the event list in AVRCP specification.
2. Add API and callback events for basic AVRCP target functionalities to do init, deinit, callback-registration, connection status indication.
3. Implement API to set/get supported PASSTHROUGH command on local AVRCP TG, implement callback events for remote passthrough command indication.
6. Implement API to set/get supported notification eventIDs on local AVRCP TG, implement API to send event notifications to remote CT. \
   Currently supported event in TG only includes ESP_AVRC_RN_VOLUME_CHANGE(0xd), which can be extended in later commits.
7. Implement callback events for SetAbsoluteVolume command indication on TG.
8. Add limitation of event_ids supported in RegisterNotification command in CT. The supported event_ids include: \
   ESP_AVRC_RN_PLAY_STATUS_CHANGE(0x1), ESP_AVRC_RN_TRACK_CHANGE(0x2), ESP_AVRC_RN_PLAY_POS_CHANGE(0x5), ESP_AVRC_RN_VOLUME_CHANGE(0xd).
9. Add feature bit mask in parameter of callback event ESP_AVRC_CT_REMOTE_FEATURES_EVT for peer feature information got from SDP.
10. Add API and callback event to AVRCP CT to retrieve remote TG's supported notification event capabilities.
11. Modify data type for parameter of callback event ESP_AVRC_CT_CHANGE_NOTIFY_EVT.
12. Change AVRCP version from 1.3 to 1.4 for compatibility cause in using AbsoluteVolume feature.
13. Modify local AVRCP device to be category 1 as CT and category 2 as TG that applies to bluetooth headphones or speakers.
14. Update the use of AVRCP APIs and events in the two examples a2dp_sink a2dp_gatts_coex, which includes the demo of volume control and notification.
2020-07-21 11:44:36 +08:00

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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 file contains action functions for advanced audio/video main state
* machine.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
#include <string.h>
#include "bta/bta_av_api.h"
#include "bta_av_int.h"
#include "stack/avdt_api.h"
#include "bta/utl.h"
#include "stack/l2c_api.h"
#include "osi/allocator.h"
#include "osi/list.h"
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
#include "bta/bta_ar_api.h"
#endif
#define LOG_TAG "bt_bta_av"
// #include "osi/include/log.h"
#include "common/bt_trace.h"
/*****************************************************************************
** Constants
*****************************************************************************/
/* the timer in milliseconds to wait for open req after setconfig for incoming connections */
#ifndef BTA_AV_SIG_TIME_VAL
#define BTA_AV_SIG_TIME_VAL 8000
#endif
/* In millisec to wait for signalling from SNK when it is initiated from SNK. */
/* If not, we will start signalling from SRC. */
#ifndef BTA_AV_ACP_SIG_TIME_VAL
#define BTA_AV_ACP_SIG_TIME_VAL 2000
#endif
static void bta_av_acp_sig_timer_cback (TIMER_LIST_ENT *p_tle);
/*******************************************************************************
**
** Function bta_av_get_rcb_by_shdl
**
** Description find the RCB associated with the given SCB handle.
**
** Returns tBTA_AV_RCB
**
*******************************************************************************/
tBTA_AV_RCB *bta_av_get_rcb_by_shdl(UINT8 shdl)
{
tBTA_AV_RCB *p_rcb = NULL;
int i;
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
if (bta_av_cb.rcb[i].shdl == shdl && bta_av_cb.rcb[i].handle != BTA_AV_RC_HANDLE_NONE) {
p_rcb = &bta_av_cb.rcb[i];
break;
}
}
return p_rcb;
}
#define BTA_AV_STS_NO_RSP 0xFF /* a number not used by tAVRC_STS */
/*******************************************************************************
**
** Function bta_av_del_rc
**
** Description delete the given AVRC handle.
**
** Returns void
**
*******************************************************************************/
void bta_av_del_rc(tBTA_AV_RCB *p_rcb)
{
tBTA_AV_SCB *p_scb;
UINT8 rc_handle; /* connected AVRCP handle */
p_scb = NULL;
if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) {
if (p_rcb->shdl) {
/* Validate array index*/
if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS) {
p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
}
if (p_scb) {
APPL_TRACE_DEBUG("bta_av_del_rc shdl:%d, srch:%d rc_handle:%d", p_rcb->shdl,
p_scb->rc_handle, p_rcb->handle);
if (p_scb->rc_handle == p_rcb->handle) {
p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE;
}
/* just in case the RC timer is active
if(bta_av_cb.features & BTA_AV_FEAT_RCCT && p_scb->chnl == BTA_AV_CHNL_AUDIO) */
bta_sys_stop_timer(&p_scb->timer);
}
}
APPL_TRACE_EVENT("bta_av_del_rc handle: %d status=0x%x, rc_acp_handle:%d, idx:%d",
p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, bta_av_cb.rc_acp_idx);
rc_handle = p_rcb->handle;
if (!(p_rcb->status & BTA_AV_RC_CONN_MASK) ||
((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT) ) {
p_rcb->status = 0;
p_rcb->handle = BTA_AV_RC_HANDLE_NONE;
p_rcb->shdl = 0;
p_rcb->lidx = 0;
}
/* else ACP && connected. do not clear the handle yet */
AVRC_Close(rc_handle);
if (rc_handle == bta_av_cb.rc_acp_handle) {
bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE;
}
APPL_TRACE_EVENT("end del_rc handle: %d status=0x%x, rc_acp_handle:%d, lidx:%d",
p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, p_rcb->lidx);
}
}
/*******************************************************************************
**
** Function bta_av_close_all_rc
**
** Description close the all AVRC handle.
**
** Returns void
**
*******************************************************************************/
static void bta_av_close_all_rc(tBTA_AV_CB *p_cb)
{
int i;
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
if ((p_cb->disabling == TRUE) || (bta_av_cb.rcb[i].shdl != 0)) {
bta_av_del_rc(&bta_av_cb.rcb[i]);
}
}
}
/*******************************************************************************
**
** Function bta_av_del_sdp_rec
**
** Description delete the given SDP record handle.
**
** Returns void
**
*******************************************************************************/
static void bta_av_del_sdp_rec(UINT32 *p_sdp_handle)
{
if (*p_sdp_handle != 0) {
SDP_DeleteRecord(*p_sdp_handle);
*p_sdp_handle = 0;
}
}
/*******************************************************************************
**
** Function bta_av_avrc_sdp_cback
**
** Description AVRCP service discovery callback.
**
** Returns void
**
*******************************************************************************/
static void bta_av_avrc_sdp_cback(UINT16 status)
{
BT_HDR *p_msg;
UNUSED(status);
if ((p_msg = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_msg->event = BTA_AV_SDP_AVRC_DISC_EVT;
bta_sys_sendmsg(p_msg);
}
}
/*******************************************************************************
**
** Function bta_av_rc_ctrl_cback
**
** Description AVRCP control callback.
**
** Returns void
**
*******************************************************************************/
static void bta_av_rc_ctrl_cback(UINT8 handle, UINT8 event, UINT16 result, BD_ADDR peer_addr)
{
tBTA_AV_RC_CONN_CHG *p_msg;
UINT16 msg_event = 0;
UNUSED(result);
#if (defined(BTA_AV_MIN_DEBUG_TRACES) && BTA_AV_MIN_DEBUG_TRACES == TRUE)
APPL_TRACE_EVENT("rc_ctrl handle: %d event=0x%x", handle, event);
#else
APPL_TRACE_EVENT("bta_av_rc_ctrl_cback handle: %d event=0x%x", handle, event);
#endif
if (event == AVRC_OPEN_IND_EVT) {
/* save handle of opened connection
bta_av_cb.rc_handle = handle;*/
msg_event = BTA_AV_AVRC_OPEN_EVT;
} else if (event == AVRC_CLOSE_IND_EVT) {
msg_event = BTA_AV_AVRC_CLOSE_EVT;
}
if (msg_event) {
if ((p_msg = (tBTA_AV_RC_CONN_CHG *) osi_malloc(sizeof(tBTA_AV_RC_CONN_CHG))) != NULL) {
p_msg->hdr.event = msg_event;
p_msg->handle = handle;
if (peer_addr) {
bdcpy(p_msg->peer_addr, peer_addr);
}
bta_sys_sendmsg(p_msg);
}
}
}
/*******************************************************************************
**
** Function bta_av_rc_msg_cback
**
** Description AVRCP message callback.
**
** Returns void
**
*******************************************************************************/
static void bta_av_rc_msg_cback(UINT8 handle, UINT8 label, UINT8 opcode, tAVRC_MSG *p_msg)
{
UINT8 *p_data_src = NULL;
UINT16 data_len = 0;
APPL_TRACE_DEBUG("%s handle: %u opcode=0x%x", __func__, handle, opcode);
/* Determine the size of the buffer we need */
if (opcode == AVRC_OP_VENDOR && p_msg->vendor.p_vendor_data != NULL) {
p_data_src = p_msg->vendor.p_vendor_data;
data_len = (UINT16) p_msg->vendor.vendor_len;
} else if (opcode == AVRC_OP_PASS_THRU && p_msg->pass.p_pass_data != NULL) {
p_data_src = p_msg->pass.p_pass_data;
data_len = (UINT16) p_msg->pass.pass_len;
}
/* Create a copy of the message */
tBTA_AV_RC_MSG *p_buf =
(tBTA_AV_RC_MSG *)osi_malloc((UINT16)(sizeof(tBTA_AV_RC_MSG) + data_len));
if (p_buf != NULL) {
p_buf->hdr.event = BTA_AV_AVRC_MSG_EVT;
p_buf->handle = handle;
p_buf->label = label;
p_buf->opcode = opcode;
memcpy(&p_buf->msg, p_msg, sizeof(tAVRC_MSG));
/* Copy the data payload, and set the pointer to it */
if (p_data_src != NULL) {
UINT8 *p_data_dst = (UINT8 *)(p_buf + 1);
memcpy(p_data_dst, p_data_src, data_len);
if (opcode == AVRC_OP_VENDOR) {
p_buf->msg.vendor.p_vendor_data = p_data_dst;
} else if (opcode == AVRC_OP_PASS_THRU) {
p_buf->msg.pass.p_pass_data = p_data_dst;
}
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_av_rc_create
**
** Description alloc RCB and call AVRC_Open
**
** Returns the created rc handle
**
*******************************************************************************/
UINT8 bta_av_rc_create(tBTA_AV_CB *p_cb, UINT8 role, UINT8 shdl, UINT8 lidx)
{
tAVRC_CONN_CB ccb;
BD_ADDR_PTR bda = (BD_ADDR_PTR)bd_addr_any;
UINT8 status = BTA_AV_RC_ROLE_ACP;
tBTA_AV_SCB *p_scb = p_cb->p_scb[shdl - 1];
int i;
UINT8 rc_handle;
tBTA_AV_RCB *p_rcb;
if (role == AVCT_INT) {
bda = p_scb->peer_addr;
status = BTA_AV_RC_ROLE_INT;
} else {
if ((p_rcb = bta_av_get_rcb_by_shdl(shdl)) != NULL ) {
APPL_TRACE_ERROR("bta_av_rc_create ACP handle exist for shdl:%d", shdl);
return p_rcb->handle;
}
}
ccb.p_ctrl_cback = bta_av_rc_ctrl_cback;
ccb.p_msg_cback = bta_av_rc_msg_cback;
ccb.company_id = p_bta_av_cfg->company_id;
ccb.conn = role;
/* note: BTA_AV_FEAT_RCTG = AVRC_CT_TARGET, BTA_AV_FEAT_RCCT = AVRC_CT_CONTROL */
ccb.control = p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_RCCT | AVRC_CT_PASSIVE);
if (AVRC_Open(&rc_handle, &ccb, bda) != AVRC_SUCCESS) {
return BTA_AV_RC_HANDLE_NONE;
}
i = rc_handle;
p_rcb = &p_cb->rcb[i];
if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) {
APPL_TRACE_ERROR("bta_av_rc_create found duplicated handle:%d", rc_handle);
}
p_rcb->handle = rc_handle;
p_rcb->status = status;
p_rcb->shdl = shdl;
p_rcb->lidx = lidx;
p_rcb->peer_features = 0;
p_rcb->peer_ct_features = 0;
p_rcb->peer_tg_features = 0;
if (lidx == (BTA_AV_NUM_LINKS + 1)) {
/* this LIDX is reserved for the AVRCP ACP connection */
p_cb->rc_acp_handle = p_rcb->handle;
p_cb->rc_acp_idx = (i + 1);
APPL_TRACE_DEBUG("rc_acp_handle:%d idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx);
}
APPL_TRACE_DEBUG("create %d, role: %d, shdl:%d, rc_handle:%d, lidx:%d, status:0x%x",
i, role, shdl, p_rcb->handle, lidx, p_rcb->status);
return rc_handle;
}
/*******************************************************************************
**
** Function bta_av_valid_group_navi_msg
**
** Description Check if it is Group Navigation Msg for Metadata
**
** Returns BTA_AV_RSP_ACCEPT or BTA_AV_RSP_NOT_IMPL.
**
*******************************************************************************/
static tBTA_AV_CODE bta_av_group_navi_supported(UINT8 len, UINT8 *p_data, BOOLEAN is_inquiry)
{
tBTA_AV_CODE ret = BTA_AV_RSP_NOT_IMPL;
UINT8 *p_ptr = p_data;
UINT16 u16;
UINT32 u32;
if (p_bta_av_cfg->avrc_group && len == BTA_GROUP_NAVI_MSG_OP_DATA_LEN) {
BTA_AV_BE_STREAM_TO_CO_ID(u32, p_ptr);
BE_STREAM_TO_UINT16(u16, p_ptr);
if (u32 == AVRC_CO_METADATA) {
if (is_inquiry) {
if (u16 <= AVRC_PDU_PREV_GROUP) {
ret = BTA_AV_RSP_IMPL_STBL;
}
} else {
if (u16 <= AVRC_PDU_PREV_GROUP) {
ret = BTA_AV_RSP_ACCEPT;
} else {
ret = BTA_AV_RSP_REJ;
}
}
}
}
return ret;
}
/*******************************************************************************
**
** Function bta_av_op_supported
**
** Description Check if remote control operation is supported.
**
** Returns BTA_AV_RSP_ACCEPT of supported, BTA_AV_RSP_NOT_IMPL if not.
**
*******************************************************************************/
static tBTA_AV_CODE bta_av_op_supported(tBTA_AV_RC rc_id, BOOLEAN is_inquiry)
{
tBTA_AV_CODE ret_code = BTA_AV_RSP_NOT_IMPL;
BOOLEAN rc_id_allowed = FALSE;
if (bta_av_cb.p_rc_cos && bta_av_cb.p_rc_cos->rc_cmd) {
rc_id_allowed = bta_av_cb.p_rc_cos->rc_cmd(rc_id);
}
if (rc_id_allowed == TRUE) {
ret_code = is_inquiry ? BTA_AV_RSP_IMPL_STBL : BTA_AV_RSP_ACCEPT;
}
return ret_code;
}
/*******************************************************************************
**
** Function bta_av_find_lcb
**
** Description Given BD_addr, find the associated LCB.
**
** Returns NULL, if not found.
**
*******************************************************************************/
tBTA_AV_LCB *bta_av_find_lcb(BD_ADDR addr, UINT8 op)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
int xx;
UINT8 mask;
tBTA_AV_LCB *p_lcb = NULL;
for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) {
mask = 1 << xx; /* the used mask for this lcb */
if ((mask & p_cb->conn_lcb) && 0 == ( bdcmp(p_cb->lcb[xx].addr, addr))) {
p_lcb = &p_cb->lcb[xx];
if (op == BTA_AV_LCB_FREE) {
p_cb->conn_lcb &= ~mask; /* clear the connect mask */
APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb);
}
break;
}
}
return p_lcb;
}
/*******************************************************************************
**
** Function bta_av_rc_opened
**
** Description Set AVRCP state to opened.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_opened(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_RC_OPEN rc_open;
tBTA_AV_SCB *p_scb;
int i;
UINT8 shdl = 0;
tBTA_AV_LCB *p_lcb;
tBTA_AV_RCB *p_rcb;
UINT8 tmp;
UINT8 disc = 0;
/* find the SCB & stop the timer */
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
p_scb = p_cb->p_scb[i];
if (p_scb && bdcmp(p_scb->peer_addr, p_data->rc_conn_chg.peer_addr) == 0) {
p_scb->rc_handle = p_data->rc_conn_chg.handle;
APPL_TRACE_DEBUG("bta_av_rc_opened shdl:%d, srch %d", i + 1, p_scb->rc_handle);
shdl = i + 1;
APPL_TRACE_EVENT("%s allow incoming AVRCP connections:%d", __func__, p_scb->use_rc);
bta_sys_stop_timer(&p_scb->timer);
disc = p_scb->hndl;
break;
}
}
i = p_data->rc_conn_chg.handle;
if (p_cb->rcb[i].handle == BTA_AV_RC_HANDLE_NONE) {
APPL_TRACE_ERROR("not a valid handle:%d any more", i);
return;
}
if (p_cb->rcb[i].lidx == (BTA_AV_NUM_LINKS + 1) && shdl != 0) {
/* rc is opened on the RC only ACP channel, but is for a specific
* SCB -> need to switch RCBs */
p_rcb = bta_av_get_rcb_by_shdl(shdl);
if (p_rcb) {
p_rcb->shdl = p_cb->rcb[i].shdl;
tmp = p_rcb->lidx;
p_rcb->lidx = p_cb->rcb[i].lidx;
p_cb->rcb[i].lidx = tmp;
p_cb->rc_acp_handle = p_rcb->handle;
p_cb->rc_acp_idx = (p_rcb - p_cb->rcb) + 1;
APPL_TRACE_DEBUG("switching RCB rc_acp_handle:%d idx:%d",
p_cb->rc_acp_handle, p_cb->rc_acp_idx);
}
}
p_cb->rcb[i].shdl = shdl;
rc_open.rc_handle = i;
APPL_TRACE_EVENT("bta_av_rc_opened rcb[%d] shdl:%d lidx:%d/%d",
i, shdl, p_cb->rcb[i].lidx, p_cb->lcb[BTA_AV_NUM_LINKS].lidx);
p_cb->rcb[i].status |= BTA_AV_RC_CONN_MASK;
if (!shdl && 0 == p_cb->lcb[BTA_AV_NUM_LINKS].lidx) {
/* no associated SCB -> connected to an RC only device
* update the index to the extra LCB */
p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS];
bdcpy(p_lcb->addr, p_data->rc_conn_chg.peer_addr);
APPL_TRACE_DEBUG("rc_only bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
p_lcb->addr[0], p_lcb->addr[1],
p_lcb->addr[2], p_lcb->addr[3],
p_lcb->addr[4], p_lcb->addr[5]);
p_lcb->lidx = BTA_AV_NUM_LINKS + 1;
p_cb->rcb[i].lidx = p_lcb->lidx;
p_lcb->conn_msk = 1;
APPL_TRACE_ERROR("rcb[%d].lidx=%d, lcb.conn_msk=x%x",
i, p_cb->rcb[i].lidx, p_lcb->conn_msk);
disc = p_data->rc_conn_chg.handle | BTA_AV_CHNL_MSK;
}
bdcpy(rc_open.peer_addr, p_data->rc_conn_chg.peer_addr);
rc_open.peer_features = p_cb->rcb[i].peer_features;
rc_open.peer_ct_features = p_cb->rcb[i].peer_ct_features;
rc_open.peer_tg_features = p_cb->rcb[i].peer_tg_features;
rc_open.sdp_disc_done = TRUE;
rc_open.status = BTA_AV_SUCCESS;
APPL_TRACE_DEBUG("local features:x%x peer_features:x%x", p_cb->features,
rc_open.peer_features);
if (rc_open.peer_features == 0) {
/* we have not done SDP on peer RC capabilities.
* peer must have initiated the RC connection */
rc_open.peer_features = BTA_AV_FEAT_RCCT;
rc_open.sdp_disc_done = FALSE;
bta_av_rc_disc(disc);
}
(*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open);
}
/*******************************************************************************
**
** Function bta_av_rc_remote_cmd
**
** Description Send an AVRCP remote control command.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_remote_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_RCB *p_rcb;
if (p_cb->features & BTA_AV_FEAT_RCCT) {
if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) {
p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
if (p_rcb->status & BTA_AV_RC_CONN_MASK) {
AVRC_PassCmd(p_rcb->handle, p_data->api_remote_cmd.label,
&p_data->api_remote_cmd.msg);
}
}
}
}
/*******************************************************************************
**
** Function bta_av_rc_vendor_cmd
**
** Description Send an AVRCP vendor specific command.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_vendor_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_RCB *p_rcb;
if ( (p_cb->features & (BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR)) ==
(BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR)) {
if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) {
p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
AVRC_VendorCmd(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg);
}
}
}
/*******************************************************************************
**
** Function bta_av_rc_vendor_rsp
**
** Description Send an AVRCP vendor specific response.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_vendor_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_RCB *p_rcb;
if ( (p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR)) ==
(BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR)) {
if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) {
p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
AVRC_VendorRsp(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg);
}
}
}
/*******************************************************************************
**
** Function bta_av_rc_meta_rsp
**
** Description Send an AVRCP metadata/advanced control command/response.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_meta_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_RCB *p_rcb;
BOOLEAN do_free = TRUE;
if ((p_cb->features & BTA_AV_FEAT_METADATA) && (p_data->hdr.layer_specific < BTA_AV_NUM_RCB)) {
if ((p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCTG)) ||
(!p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCCT)) ) {
p_rcb = &p_cb->rcb[p_data->hdr.layer_specific];
if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) {
AVRC_MsgReq(p_rcb->handle, p_data->api_meta_rsp.label,
p_data->api_meta_rsp.rsp_code,
p_data->api_meta_rsp.p_pkt);
do_free = FALSE;
}
}
}
if (do_free) {
osi_free (p_data->api_meta_rsp.p_pkt);
}
}
/*******************************************************************************
**
** Function bta_av_rc_free_rsp
**
** Description free an AVRCP metadata command buffer.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_free_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
UNUSED(p_cb);
osi_free (p_data->api_meta_rsp.p_pkt);
}
/*******************************************************************************
**
** Function bta_av_rc_meta_req
**
** Description Send an AVRCP metadata command.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_free_msg (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
UNUSED(p_cb);
UNUSED(p_data);
}
/*******************************************************************************
**
** Function bta_av_chk_notif_evt_id
**
** Description make sure the requested player id is valid.
**
** Returns BTA_AV_STS_NO_RSP, if no error
**
*******************************************************************************/
static tAVRC_STS bta_av_chk_notif_evt_id(tAVRC_MSG_VENDOR *p_vendor)
{
tAVRC_STS status = BTA_AV_STS_NO_RSP;
UINT16 u16;
UINT8 *p = p_vendor->p_vendor_data + 2;
BE_STREAM_TO_UINT16 (u16, p);
/* double check the fixed length */
if ((u16 != 5) || (p_vendor->vendor_len != 9)) {
status = AVRC_STS_INTERNAL_ERR;
} else {
/* make sure the event_id is valid */
status = AVRC_STS_BAD_PARAM;
if (bta_av_cb.p_rc_cos && bta_av_cb.p_rc_cos->rn_evt_supported) {
if (bta_av_cb.p_rc_cos->rn_evt_supported(*p) == TRUE) {
status = BTA_AV_STS_NO_RSP;
}
}
}
return status;
}
/*******************************************************************************
**
** Function bta_av_proc_meta_cmd
**
** Description Process an AVRCP metadata command from the peer.
**
** Returns TRUE to respond immediately
**
*******************************************************************************/
tBTA_AV_EVT bta_av_proc_meta_cmd(tAVRC_RESPONSE *p_rc_rsp, tBTA_AV_RC_MSG *p_msg, UINT8 *p_ctype)
{
tBTA_AV_EVT evt = BTA_AV_META_MSG_EVT;
UINT8 u8, pdu, *p;
UINT16 u16;
tAVRC_MSG_VENDOR *p_vendor = &p_msg->msg.vendor;
#if (AVRC_METADATA_INCLUDED == TRUE)
pdu = *(p_vendor->p_vendor_data);
p_rc_rsp->pdu = pdu;
*p_ctype = AVRC_RSP_REJ;
/* Metadata messages only use PANEL sub-unit type */
if (p_vendor->hdr.subunit_type != AVRC_SUB_PANEL) {
APPL_TRACE_DEBUG("SUBUNIT must be PANEL");
/* reject it */
evt = 0;
p_vendor->hdr.ctype = BTA_AV_RSP_NOT_IMPL;
AVRC_VendorRsp(p_msg->handle, p_msg->label, &p_msg->msg.vendor);
} else if (!AVRC_IsValidAvcType(pdu, p_vendor->hdr.ctype) ) {
APPL_TRACE_DEBUG("Invalid pdu/ctype: 0x%x, %d", pdu, p_vendor->hdr.ctype);
/* reject invalid message without reporting to app */
evt = 0;
p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD;
} else {
switch (pdu) {
case AVRC_PDU_GET_CAPABILITIES:
/* process GetCapabilities command without reporting the event to app */
evt = 0;
u8 = *(p_vendor->p_vendor_data + 4);
p = p_vendor->p_vendor_data + 2;
p_rc_rsp->get_caps.capability_id = u8;
BE_STREAM_TO_UINT16 (u16, p);
if ((u16 != 1) || (p_vendor->vendor_len != 5)) {
p_rc_rsp->get_caps.status = AVRC_STS_INTERNAL_ERR;
} else {
p_rc_rsp->get_caps.status = AVRC_STS_NO_ERROR;
if (u8 == AVRC_CAP_COMPANY_ID) {
*p_ctype = AVRC_RSP_IMPL_STBL;
p_rc_rsp->get_caps.count = p_bta_av_cfg->num_co_ids;
memcpy(p_rc_rsp->get_caps.param.company_id, p_bta_av_cfg->p_meta_co_ids,
(p_bta_av_cfg->num_co_ids << 2));
} else if (u8 == AVRC_CAP_EVENTS_SUPPORTED) {
*p_ctype = AVRC_RSP_IMPL_STBL;
if (bta_av_cb.p_rc_cos && bta_av_cb.p_rc_cos->rn_evt_cap) {
p_rc_rsp->get_caps.count = bta_av_cb.p_rc_cos->rn_evt_cap(
p_rc_rsp->get_caps.param.event_id);
} else {
p_rc_rsp->get_caps.count = 0;
}
} else {
APPL_TRACE_DEBUG("Invalid capability ID: 0x%x", u8);
/* reject - unknown capability ID */
p_rc_rsp->get_caps.status = AVRC_STS_BAD_PARAM;
}
}
break;
case AVRC_PDU_REGISTER_NOTIFICATION:
/* make sure the event_id is implemented */
p_rc_rsp->rsp.status = bta_av_chk_notif_evt_id (p_vendor);
if (p_rc_rsp->rsp.status != BTA_AV_STS_NO_RSP) {
evt = 0;
}
break;
case AVRC_PDU_SET_ABSOLUTE_VOLUME:
p_rc_rsp->rsp.status = BTA_AV_STS_NO_RSP;
break;
default:
APPL_TRACE_WARNING("%s unhandled RC vendor PDU: 0x%x", __FUNCTION__, pdu);
break;
}
}
#else
APPL_TRACE_DEBUG("AVRCP 1.3 Metadata not supporteed. Reject command.");
/* reject invalid message without reporting to app */
evt = 0;
p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD;
#endif
return evt;
}
/*******************************************************************************
**
** Function bta_av_rc_msg
**
** Description Process an AVRCP message from the peer.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_msg(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
tBTA_AV_EVT evt = 0;
tBTA_AV av;
BT_HDR *p_pkt = NULL;
tAVRC_MSG_VENDOR *p_vendor = &p_data->rc_msg.msg.vendor;
BOOLEAN is_inquiry = ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) || p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ);
#if (AVRC_METADATA_INCLUDED == TRUE)
UINT8 ctype = 0;
tAVRC_RESPONSE rc_rsp;
rc_rsp.rsp.status = BTA_AV_STS_NO_RSP;
#endif
if (p_data->rc_msg.opcode == AVRC_OP_PASS_THRU) {
/* if this is a pass thru command */
if ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_CTRL) ||
(p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) ||
(p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ)
) {
/* check if operation is supported */
if (p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR) {
p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL;
#if (AVRC_METADATA_INCLUDED == TRUE)
if (p_cb->features & BTA_AV_FEAT_METADATA) {
p_data->rc_msg.msg.hdr.ctype =
bta_av_group_navi_supported(p_data->rc_msg.msg.pass.pass_len,
p_data->rc_msg.msg.pass.p_pass_data, is_inquiry);
}
#endif
} else {
p_data->rc_msg.msg.hdr.ctype = bta_av_op_supported(p_data->rc_msg.msg.pass.op_id, is_inquiry);
}
APPL_TRACE_DEBUG("ctype %d", p_data->rc_msg.msg.hdr.ctype)
/* send response */
if (p_data->rc_msg.msg.hdr.ctype != BTA_AV_RSP_INTERIM) {
AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass);
}
/* set up for callback if supported */
if (p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_ACCEPT || p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_INTERIM) {
evt = BTA_AV_REMOTE_CMD_EVT;
av.remote_cmd.rc_id = p_data->rc_msg.msg.pass.op_id;
av.remote_cmd.key_state = p_data->rc_msg.msg.pass.state;
av.remote_cmd.p_data = p_data->rc_msg.msg.pass.p_pass_data;
av.remote_cmd.len = p_data->rc_msg.msg.pass.pass_len;
memcpy(&av.remote_cmd.hdr, &p_data->rc_msg.msg.hdr, sizeof (tAVRC_HDR));
av.remote_cmd.label = p_data->rc_msg.label;
}
}
/* else if this is a pass thru respone that TG doesn't implement thie command */
else if (p_data->rc_msg.msg.hdr.ctype == AVRC_RSP_NOT_IMPL) {
/* do nothing, no need to setup for callback */
}
/* else if this is a pass thru response */
else if (p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_ACCEPT) {
/* set up for callback */
evt = BTA_AV_REMOTE_RSP_EVT;
av.remote_rsp.rc_id = p_data->rc_msg.msg.pass.op_id;
av.remote_rsp.key_state = p_data->rc_msg.msg.pass.state;
av.remote_rsp.rsp_code = p_data->rc_msg.msg.hdr.ctype;
av.remote_rsp.label = p_data->rc_msg.label;
}
/* must be a bad ctype -> reject*/
else {
p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ;
AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass);
}
}
/* else if this is a vendor specific command or response */
else if (p_data->rc_msg.opcode == AVRC_OP_VENDOR) {
/* set up for callback */
av.vendor_cmd.code = p_data->rc_msg.msg.hdr.ctype;
av.vendor_cmd.company_id = p_vendor->company_id;
av.vendor_cmd.label = p_data->rc_msg.label;
av.vendor_cmd.p_data = p_vendor->p_vendor_data;
av.vendor_cmd.len = p_vendor->vendor_len;
/* if configured to support vendor specific and it's a command */
if ((p_cb->features & BTA_AV_FEAT_VENDOR) &&
p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ) {
#if (AVRC_METADATA_INCLUDED == TRUE)
if ((p_cb->features & BTA_AV_FEAT_METADATA) &&
(p_vendor->company_id == AVRC_CO_METADATA)) {
av.meta_msg.p_msg = &p_data->rc_msg.msg;
evt = bta_av_proc_meta_cmd (&rc_rsp, &p_data->rc_msg, &ctype);
} else
#endif
{
evt = BTA_AV_VENDOR_CMD_EVT;
}
}
/* else if configured to support vendor specific and it's a response */
else if ((p_cb->features & BTA_AV_FEAT_VENDOR) &&
p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_ACCEPT) {
#if (AVRC_METADATA_INCLUDED == TRUE)
if ((p_cb->features & BTA_AV_FEAT_METADATA) &&
(p_vendor->company_id == AVRC_CO_METADATA)) {
av.meta_msg.p_msg = &p_data->rc_msg.msg;
evt = BTA_AV_META_MSG_EVT;
} else
#endif
{
evt = BTA_AV_VENDOR_RSP_EVT;
}
}
/* else if not configured to support vendor specific and it's a command */
else if (!(p_cb->features & BTA_AV_FEAT_VENDOR) &&
p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ) {
if (p_data->rc_msg.msg.vendor.p_vendor_data[0] == AVRC_PDU_INVALID) {
/* reject it */
p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ;
p_data->rc_msg.msg.vendor.p_vendor_data[4] = AVRC_STS_BAD_CMD;
} else {
p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL;
}
AVRC_VendorRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.vendor);
}
}
#if (AVRC_METADATA_INCLUDED == TRUE)
if (evt == 0 && rc_rsp.rsp.status != BTA_AV_STS_NO_RSP) {
if (!p_pkt) {
rc_rsp.rsp.opcode = p_data->rc_msg.opcode;
AVRC_BldResponse (0, &rc_rsp, &p_pkt);
}
if (p_pkt) {
AVRC_MsgReq (p_data->rc_msg.handle, p_data->rc_msg.label, ctype, p_pkt);
}
}
#endif
/* call callback */
if (evt != 0) {
av.remote_cmd.rc_handle = p_data->rc_msg.handle;
(*p_cb->p_cback)(evt, &av);
}
}
/*******************************************************************************
**
** Function bta_av_rc_close
**
** Description close the specified AVRC handle.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_close (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
UINT16 handle = p_data->hdr.layer_specific;
tBTA_AV_SCB *p_scb;
tBTA_AV_RCB *p_rcb;
if (handle < BTA_AV_NUM_RCB) {
p_rcb = &p_cb->rcb[handle];
APPL_TRACE_DEBUG("bta_av_rc_close handle: %d, status=0x%x", p_rcb->handle, p_rcb->status);
if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) {
if (p_rcb->shdl) {
p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
if (p_scb) {
/* just in case the RC timer is active
if(bta_av_cb.features & BTA_AV_FEAT_RCCT &&
p_scb->chnl == BTA_AV_CHNL_AUDIO) */
bta_sys_stop_timer(&p_scb->timer);
}
}
AVRC_Close(p_rcb->handle);
}
}
}
/*******************************************************************************
**
** Function bta_av_get_shdl
**
** Returns The index to p_scb[]
**
*******************************************************************************/
static UINT8 bta_av_get_shdl(tBTA_AV_SCB *p_scb)
{
int i;
UINT8 shdl = 0;
/* find the SCB & stop the timer */
for (i = 0; i < BTA_AV_NUM_STRS; i++) {
if (p_scb == bta_av_cb.p_scb[i]) {
shdl = i + 1;
break;
}
}
return shdl;
}
/*******************************************************************************
**
** Function bta_av_stream_chg
**
** Description audio streaming status changed.
**
** Returns void
**
*******************************************************************************/
void bta_av_stream_chg(tBTA_AV_SCB *p_scb, BOOLEAN started)
{
UINT8 started_msk;
int i;
UINT8 *p_streams;
BOOLEAN no_streams = FALSE;
tBTA_AV_SCB *p_scbi;
started_msk = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
APPL_TRACE_DEBUG ("bta_av_stream_chg started:%d started_msk:x%x chnl:x%x", started,
started_msk, p_scb->chnl);
if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
p_streams = &bta_av_cb.audio_streams;
} else {
p_streams = &bta_av_cb.video_streams;
}
if (started) {
/* Let L2CAP know this channel is processed with high priority */
L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_HIGH);
(*p_streams) |= started_msk;
} else {
(*p_streams) &= ~started_msk;
}
if (!started) {
i = 0;
if (BTA_AV_CHNL_AUDIO == p_scb->chnl) {
if (bta_av_cb.video_streams == 0) {
no_streams = TRUE;
}
} else {
no_streams = TRUE;
if ( bta_av_cb.audio_streams ) {
for (; i < BTA_AV_NUM_STRS; i++) {
p_scbi = bta_av_cb.p_scb[i];
/* scb is used and started */
if ( p_scbi && (bta_av_cb.audio_streams & BTA_AV_HNDL_TO_MSK(i))
&& bdcmp(p_scbi->peer_addr, p_scb->peer_addr) == 0) {
no_streams = FALSE;
break;
}
}
}
}
APPL_TRACE_DEBUG ("no_streams:%d i:%d, audio_streams:x%x, video_streams:x%x", no_streams, i,
bta_av_cb.audio_streams, bta_av_cb.video_streams);
if (no_streams) {
/* Let L2CAP know this channel is processed with low priority */
L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_NORMAL);
}
}
}
/*******************************************************************************
**
** Function bta_av_conn_chg
**
** Description connection status changed.
** Open an AVRCP acceptor channel, if new conn.
**
** Returns void
**
*******************************************************************************/
void bta_av_conn_chg(tBTA_AV_DATA *p_data)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
tBTA_AV_SCB *p_scb = NULL;
tBTA_AV_SCB *p_scbi;
UINT8 mask;
UINT8 conn_msk;
UINT8 old_msk;
int i;
int index = (p_data->hdr.layer_specific & BTA_AV_HNDL_MSK) - 1;
tBTA_AV_LCB *p_lcb;
tBTA_AV_LCB *p_lcb_rc;
tBTA_AV_RCB *p_rcb, *p_rcb2;
BOOLEAN chk_restore = FALSE;
/* Validate array index*/
if (index < BTA_AV_NUM_STRS) {
p_scb = p_cb->p_scb[index];
}
mask = BTA_AV_HNDL_TO_MSK(index);
p_lcb = bta_av_find_lcb(p_data->conn_chg.peer_addr, BTA_AV_LCB_FIND);
conn_msk = 1 << (index + 1);
if (p_data->conn_chg.is_up) {
/* set the conned mask for this channel */
if (p_scb) {
if (p_lcb) {
p_lcb->conn_msk |= conn_msk;
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
if (bta_av_cb.rcb[i].lidx == p_lcb->lidx) {
bta_av_cb.rcb[i].shdl = index + 1;
APPL_TRACE_DEBUG("conn_chg up[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i,
bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status,
bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx);
break;
}
}
}
if (p_scb->chnl == BTA_AV_CHNL_AUDIO) {
old_msk = p_cb->conn_audio;
p_cb->conn_audio |= mask;
} else {
old_msk = p_cb->conn_video;
p_cb->conn_video |= mask;
}
if ((old_msk & mask) == 0) {
/* increase the audio open count, if not set yet */
bta_av_cb.audio_open_cnt++;
}
APPL_TRACE_DEBUG("rc_acp_handle:%d rc_acp_idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx);
/* check if the AVRCP ACP channel is already connected */
if (p_lcb && p_cb->rc_acp_handle != BTA_AV_RC_HANDLE_NONE && p_cb->rc_acp_idx) {
p_lcb_rc = &p_cb->lcb[BTA_AV_NUM_LINKS];
APPL_TRACE_DEBUG("rc_acp is connected && conn_chg on same addr p_lcb_rc->conn_msk:x%x",
p_lcb_rc->conn_msk);
/* check if the RC is connected to the scb addr */
APPL_TRACE_DEBUG ("p_lcb_rc->addr: %02x:%02x:%02x:%02x:%02x:%02x",
p_lcb_rc->addr[0], p_lcb_rc->addr[1], p_lcb_rc->addr[2], p_lcb_rc->addr[3],
p_lcb_rc->addr[4], p_lcb_rc->addr[5]);
APPL_TRACE_DEBUG ("conn_chg.peer_addr: %02x:%02x:%02x:%02x:%02x:%02x",
p_data->conn_chg.peer_addr[0], p_data->conn_chg.peer_addr[1],
p_data->conn_chg.peer_addr[2],
p_data->conn_chg.peer_addr[3], p_data->conn_chg.peer_addr[4],
p_data->conn_chg.peer_addr[5]);
if (p_lcb_rc->conn_msk && bdcmp(p_lcb_rc->addr, p_data->conn_chg.peer_addr) == 0) {
/* AVRCP is already connected.
* need to update the association betwen SCB and RCB */
p_lcb_rc->conn_msk = 0; /* indicate RC ONLY is not connected */
p_lcb_rc->lidx = 0;
p_scb->rc_handle = p_cb->rc_acp_handle;
p_rcb = &p_cb->rcb[p_cb->rc_acp_idx - 1];
p_rcb->shdl = bta_av_get_shdl(p_scb);
APPL_TRACE_DEBUG("update rc_acp shdl:%d/%d srch:%d", index + 1, p_rcb->shdl,
p_scb->rc_handle );
p_rcb2 = bta_av_get_rcb_by_shdl(p_rcb->shdl);
if (p_rcb2) {
/* found the RCB that was created to associated with this SCB */
p_cb->rc_acp_handle = p_rcb2->handle;
p_cb->rc_acp_idx = (p_rcb2 - p_cb->rcb) + 1;
APPL_TRACE_DEBUG("new rc_acp_handle:%d, idx:%d", p_cb->rc_acp_handle,
p_cb->rc_acp_idx);
p_rcb2->lidx = (BTA_AV_NUM_LINKS + 1);
APPL_TRACE_DEBUG("rc2 handle:%d lidx:%d/%d", p_rcb2->handle, p_rcb2->lidx,
p_cb->lcb[p_rcb2->lidx - 1].lidx);
}
p_rcb->lidx = p_lcb->lidx;
APPL_TRACE_DEBUG("rc handle:%d lidx:%d/%d", p_rcb->handle, p_rcb->lidx,
p_cb->lcb[p_rcb->lidx - 1].lidx);
}
}
}
} else {
if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt) {
/* this channel is still marked as open. decrease the count */
bta_av_cb.audio_open_cnt--;
}
/* clear the conned mask for this channel */
p_cb->conn_audio &= ~mask;
p_cb->conn_video &= ~mask;
if (p_scb) {
/* the stream is closed.
* clear the peer address, so it would not mess up the AVRCP for the next round of operation */
bdcpy(p_scb->peer_addr, bd_addr_null);
if (p_scb->chnl == BTA_AV_CHNL_AUDIO) {
if (p_lcb) {
p_lcb->conn_msk &= ~conn_msk;
}
/* audio channel is down. make sure the INT channel is down */
/* just in case the RC timer is active
if(p_cb->features & BTA_AV_FEAT_RCCT) */
{
bta_sys_stop_timer(&p_scb->timer);
}
/* one audio channel goes down. check if we need to restore high priority */
chk_restore = TRUE;
}
}
APPL_TRACE_DEBUG("bta_av_conn_chg shdl:%d", index + 1);
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
APPL_TRACE_DEBUG("conn_chg dn[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i,
bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status,
bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx);
if (bta_av_cb.rcb[i].shdl == index + 1) {
bta_av_del_rc(&bta_av_cb.rcb[i]);
break;
}
}
if (p_cb->conn_audio == 0 && p_cb->conn_video == 0) {
/* if both channels are not connected,
* close all RC channels */
bta_av_close_all_rc(p_cb);
}
/* if the AVRCP is no longer listening, create the listening channel */
if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG) {
bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
}
}
APPL_TRACE_DEBUG("bta_av_conn_chg audio:%x video:%x up:%d conn_msk:0x%x chk_restore:%d audio_open_cnt:%d",
p_cb->conn_audio, p_cb->conn_video, p_data->conn_chg.is_up, conn_msk, chk_restore, p_cb->audio_open_cnt);
if (chk_restore) {
if (p_cb->audio_open_cnt == 1) {
/* one audio channel goes down and there's one audio channel remains open.
* restore the switch role in default link policy */
bta_sys_set_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH);
/* allow role switch, if this is the last connection */
bta_av_restore_switch();
}
if (p_cb->audio_open_cnt) {
/* adjust flush timeout settings to longer period */
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) {
/* 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] );
}
}
}
}
}
}
/*******************************************************************************
**
** Function bta_av_disable
**
** Description disable AV.
**
** Returns void
**
*******************************************************************************/
void bta_av_disable(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data)
{
BT_HDR hdr;
UINT16 xx;
UNUSED(p_data);
p_cb->disabling = TRUE;
bta_av_close_all_rc(p_cb);
utl_freebuf((void **) &p_cb->p_disc_db);
/* disable audio/video - de-register all channels,
* expect BTA_AV_DEREG_COMP_EVT when deregister is complete */
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
hdr.layer_specific = xx + 1;
bta_av_api_deregister((tBTA_AV_DATA *)&hdr);
}
bta_sys_free_timer(&p_cb->sig_tmr);
memset(&p_cb->sig_tmr, 0, sizeof(TIMER_LIST_ENT));
bta_sys_free_timer(&p_cb->acp_sig_tmr);
memset(&p_cb->acp_sig_tmr, 0, sizeof(TIMER_LIST_ENT));
}
/*******************************************************************************
**
** Function bta_av_api_disconnect
**
** Description .
**
** Returns void
**
*******************************************************************************/
void bta_av_api_disconnect(tBTA_AV_DATA *p_data)
{
AVDT_DisconnectReq(p_data->api_discnt.bd_addr, bta_av_conn_cback);
bta_sys_stop_timer(&bta_av_cb.sig_tmr);
}
/*******************************************************************************
**
** Function bta_av_sig_chg
**
** Description process AVDT signal channel up/down.
**
** Returns void
**
*******************************************************************************/
void bta_av_sig_chg(tBTA_AV_DATA *p_data)
{
UINT16 event = p_data->str_msg.hdr.layer_specific;
tBTA_AV_CB *p_cb = &bta_av_cb;
int xx;
UINT8 mask;
tBTA_AV_LCB *p_lcb = NULL;
APPL_TRACE_DEBUG("bta_av_sig_chg event: %d", event);
if (event == AVDT_CONNECT_IND_EVT) {
p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FIND);
if (!p_lcb) {
/* if the address does not have an LCB yet, alloc one */
for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) {
mask = 1 << xx;
APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb);
/* look for a p_lcb with its p_scb registered */
if ((!(mask & p_cb->conn_lcb)) && (p_cb->p_scb[xx] != NULL)) {
p_lcb = &p_cb->lcb[xx];
p_lcb->lidx = xx + 1;
bdcpy(p_lcb->addr, p_data->str_msg.bd_addr);
p_lcb->conn_msk = 0; /* clear the connect mask */
/* start listening when the signal channel is open */
if (p_cb->features & BTA_AV_FEAT_RCTG) {
bta_av_rc_create(p_cb, AVCT_ACP, 0, p_lcb->lidx);
}
/* this entry is not used yet. */
p_cb->conn_lcb |= mask; /* mark it as used */
APPL_TRACE_DEBUG("start sig timer %d", p_data->hdr.offset);
if (p_data->hdr.offset == AVDT_ACP) {
APPL_TRACE_DEBUG("Incoming L2CAP acquired, set state as incoming");
bdcpy(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr);
p_cb->p_scb[xx]->use_rc = TRUE; /* allowing RC for incoming connection */
bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_ACP_CONNECT_EVT, p_data);
/* The Pending Event should be sent as soon as the L2CAP signalling channel
* is set up, which is NOW. Earlier this was done only after
* BTA_AV_SIG_TIME_VAL milliseconds.
* The following function shall send the event and start the recurring timer
*/
bta_av_sig_timer(NULL);
/* Possible collision : need to avoid outgoing processing while the timer is running */
p_cb->p_scb[xx]->coll_mask = BTA_AV_COLL_INC_TMR;
p_cb->acp_sig_tmr.param = (UINT32)xx;
p_cb->acp_sig_tmr.p_cback = (TIMER_CBACK *)&bta_av_acp_sig_timer_cback;
bta_sys_start_timer(&p_cb->acp_sig_tmr, 0, BTA_AV_ACP_SIG_TIME_VAL);
}
break;
}
}
/* check if we found something */
if (xx == BTA_AV_NUM_LINKS) {
/* We do not have scb for this avdt connection. */
/* Silently close the connection. */
APPL_TRACE_ERROR("av scb not available for avdt connection");
AVDT_DisconnectReq (p_data->str_msg.bd_addr, NULL);
return;
}
}
}
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
else if (event == BTA_AR_AVDT_CONN_EVT) {
bta_sys_stop_timer(&bta_av_cb.sig_tmr);
}
#endif
else {
/* disconnected. */
p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FREE);
if (p_lcb && p_lcb->conn_msk) {
APPL_TRACE_DEBUG("conn_msk: 0x%x", p_lcb->conn_msk);
/* clean up ssm */
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
mask = 1 << (xx + 1);
if ((mask & p_lcb->conn_msk) && (p_cb->p_scb[xx]) &&
(bdcmp(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr) == 0)) {
p_cb->p_scb[xx]->disc_rsn = p_data->str_msg.hdr.offset;
bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_AVDT_DISCONNECT_EVT, NULL);
}
}
}
}
APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb);
}
/*******************************************************************************
**
** Function bta_av_sig_timer
**
** Description process the signal channel timer. This timer is started
** when the AVDTP signal channel is connected. If no profile
** is connected, the timer goes off every BTA_AV_SIG_TIME_VAL
**
** Returns void
**
*******************************************************************************/
void bta_av_sig_timer(tBTA_AV_DATA *p_data)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
int xx;
UINT8 mask;
tBTA_AV_LCB *p_lcb = NULL;
tBTA_AV_PEND pend;
UNUSED(p_data);
APPL_TRACE_DEBUG("bta_av_sig_timer");
for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) {
mask = 1 << xx;
if (mask & p_cb->conn_lcb) {
/* this entry is used. check if it is connected */
p_lcb = &p_cb->lcb[xx];
if (!p_lcb->conn_msk) {
bta_sys_start_timer(&p_cb->sig_tmr, BTA_AV_SIG_TIMER_EVT, BTA_AV_SIG_TIME_VAL);
bdcpy(pend.bd_addr, p_lcb->addr);
(*p_cb->p_cback)(BTA_AV_PENDING_EVT, (tBTA_AV *) &pend);
}
}
}
}
/*******************************************************************************
**
** Function bta_av_acp_sig_timer_cback
**
** Description Process the timeout when SRC is accepting connection
** and SNK did not start signalling.
**
** Returns void
**
*******************************************************************************/
static void bta_av_acp_sig_timer_cback (TIMER_LIST_ENT *p_tle)
{
UINT8 inx = (UINT8)p_tle->param;
tBTA_AV_CB *p_cb = &bta_av_cb;
tBTA_AV_SCB *p_scb = NULL;
tBTA_AV_API_OPEN *p_buf;
if (inx < BTA_AV_NUM_STRS) {
p_scb = p_cb->p_scb[inx];
}
if (p_scb) {
APPL_TRACE_DEBUG("bta_av_acp_sig_timer_cback, coll_mask = 0x%02X", p_scb->coll_mask);
if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) {
p_scb->coll_mask &= ~BTA_AV_COLL_INC_TMR;
if (bta_av_is_scb_opening(p_scb)) {
if (p_scb->p_disc_db) {
/* We are still doing SDP. Run the timer again. */
p_scb->coll_mask |= BTA_AV_COLL_INC_TMR;
p_cb->acp_sig_tmr.param = (UINT32)inx;
p_cb->acp_sig_tmr.p_cback = (TIMER_CBACK *)&bta_av_acp_sig_timer_cback;
bta_sys_start_timer(&p_cb->acp_sig_tmr, 0, BTA_AV_ACP_SIG_TIME_VAL);
} else {
/* SNK did not start signalling, resume signalling process. */
bta_av_discover_req (p_scb, NULL);
}
} else if (bta_av_is_scb_incoming(p_scb)) {
/* Stay in incoming state if SNK does not start signalling */
/* API open was called right after SNK opened L2C connection. */
if (p_scb->coll_mask & BTA_AV_COLL_API_CALLED) {
p_scb->coll_mask &= ~BTA_AV_COLL_API_CALLED;
/* BTA_AV_API_OPEN_EVT */
if ((p_buf = (tBTA_AV_API_OPEN *) osi_malloc(sizeof(tBTA_AV_API_OPEN))) != NULL) {
memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
bta_sys_sendmsg(p_buf);
}
}
}
}
}
}
/*******************************************************************************
**
** Function bta_av_check_peer_rc_features
**
** Description check supported AVRC features on the peer device from the SDP
** record and return the feature mask
**
** Returns tBTA_AV_FEAT peer device feature mask
**
*******************************************************************************/
tBTA_AV_FEAT bta_av_check_peer_rc_features (UINT16 service_uuid, UINT16 *rc_features)
{
tBTA_AV_FEAT peer_features = 0;
tBTA_AV_CB *p_cb = &bta_av_cb;
tSDP_DISC_REC *p_rec = NULL;
tSDP_DISC_ATTR *p_attr;
UINT16 peer_rc_version = 0;
UINT16 categories = 0;
APPL_TRACE_DEBUG("bta_av_check_peer_rc features service_uuid:x%x", service_uuid);
/* loop through all records we found */
while (TRUE) {
/* get next record; if none found, we're done */
if ((p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec)) == NULL) {
break;
}
if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_CLASS_ID_LIST)) != NULL) {
/* find peer features */
if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL)) {
peer_features |= BTA_AV_FEAT_RCCT;
}
if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REM_CTRL_TARGET, NULL)) {
peer_features |= BTA_AV_FEAT_RCTG;
}
}
if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_BT_PROFILE_DESC_LIST)) != NULL) {
/* get profile version (if failure, version parameter is not updated) */
SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL, &peer_rc_version);
APPL_TRACE_DEBUG("peer_rc_version 0x%x", peer_rc_version);
if (peer_rc_version >= AVRC_REV_1_3) {
peer_features |= (BTA_AV_FEAT_VENDOR | BTA_AV_FEAT_METADATA);
}
if (peer_rc_version >= AVRC_REV_1_4) {
peer_features |= (BTA_AV_FEAT_ADV_CTRL);
/* get supported categories */
if ((p_attr = SDP_FindAttributeInRec(p_rec,
ATTR_ID_SUPPORTED_FEATURES)) != NULL) {
categories = p_attr->attr_value.v.u16;
if (categories & AVRC_SUPF_CT_BROWSE) {
peer_features |= (BTA_AV_FEAT_BROWSE);
}
}
}
}
}
if (rc_features) {
*rc_features = categories;
}
APPL_TRACE_DEBUG("peer_features:x%x, rc:x%x", peer_features, categories);
return peer_features;
}
/*******************************************************************************
**
** Function bta_av_rc_disc_done
**
** Description Handle AVRCP service discovery results. If matching
** service found, open AVRCP connection.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_disc_done(tBTA_AV_DATA *p_data)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
tBTA_AV_SCB *p_scb = NULL;
tBTA_AV_LCB *p_lcb;
tBTA_AV_RC_OPEN rc_open;
tBTA_AV_RC_FEAT rc_feat;
UINT8 rc_handle;
tBTA_AV_FEAT peer_features; /* peer features mask */
UINT16 peer_ct_features; /* peer features mask as controller */
UINT16 peer_tg_features; /* peer features mask as target */
UNUSED(p_data);
APPL_TRACE_DEBUG("bta_av_rc_disc_done disc:x%x", p_cb->disc);
if (!p_cb->disc) {
return;
}
if ((p_cb->disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK) {
/* this is the rc handle/index to tBTA_AV_RCB */
rc_handle = p_cb->disc & (~BTA_AV_CHNL_MSK);
} else {
/* Validate array index*/
if (((p_cb->disc & BTA_AV_HNDL_MSK) - 1) < BTA_AV_NUM_STRS) {
p_scb = p_cb->p_scb[(p_cb->disc & BTA_AV_HNDL_MSK) - 1];
}
if (p_scb) {
rc_handle = p_scb->rc_handle;
} else {
p_cb->disc = 0;
return;
}
}
APPL_TRACE_DEBUG("rc_handle %d", rc_handle);
/* check peer version and whether support CT and TG role */
peer_features = bta_av_check_peer_rc_features (UUID_SERVCLASS_AV_REMOTE_CONTROL, &peer_ct_features);
peer_features |= bta_av_check_peer_rc_features (UUID_SERVCLASS_AV_REM_CTRL_TARGET, &peer_tg_features);
p_cb->disc = 0;
utl_freebuf((void **) &p_cb->p_disc_db);
APPL_TRACE_DEBUG("peer_features 0x%x, local features 0x%x", peer_features, p_cb->features);
/* if we have no rc connection */
if (rc_handle == BTA_AV_RC_HANDLE_NONE) {
if (p_scb) {
/* if peer remote control service matches ours and USE_RC is TRUE */
if ((((p_cb->features & BTA_AV_FEAT_RCCT) && (peer_features & BTA_AV_FEAT_RCTG)) ||
((p_cb->features & BTA_AV_FEAT_RCTG) && (peer_features & BTA_AV_FEAT_RCCT))) ) {
p_lcb = bta_av_find_lcb(p_scb->peer_addr, BTA_AV_LCB_FIND);
if (p_lcb) {
rc_handle = bta_av_rc_create(p_cb, AVCT_INT, (UINT8)(p_scb->hdi + 1), p_lcb->lidx);
p_cb->rcb[rc_handle].peer_features = peer_features;
p_cb->rcb[rc_handle].peer_ct_features = peer_ct_features;
p_cb->rcb[rc_handle].peer_tg_features = peer_tg_features;
}
#if (BT_USE_TRACES == TRUE || BT_TRACE_APPL == TRUE)
else {
APPL_TRACE_ERROR("can not find LCB!!");
}
#endif
} else if (p_scb->use_rc) {
/* can not find AVRC on peer device. report failure */
p_scb->use_rc = FALSE;
bdcpy(rc_open.peer_addr, p_scb->peer_addr);
rc_open.peer_features = 0;
rc_open.sdp_disc_done = FALSE;
rc_open.status = BTA_AV_FAIL_SDP;
(*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open);
}
}
} else {
p_cb->rcb[rc_handle].peer_features = peer_features;
rc_feat.rc_handle = rc_handle;
rc_feat.peer_features = peer_features;
rc_feat.peer_ct_features = peer_ct_features;
rc_feat.peer_tg_features = peer_tg_features;
(*p_cb->p_cback)(BTA_AV_RC_FEAT_EVT, (tBTA_AV *) &rc_feat);
}
}
/*******************************************************************************
**
** Function bta_av_rc_closed
**
** Description Set AVRCP state to closed.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_closed(tBTA_AV_DATA *p_data)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
tBTA_AV_RC_CLOSE rc_close;
tBTA_AV_RC_CONN_CHG *p_msg = (tBTA_AV_RC_CONN_CHG *)p_data;
tBTA_AV_RCB *p_rcb;
tBTA_AV_SCB *p_scb;
int i;
BOOLEAN conn = FALSE;
tBTA_AV_LCB *p_lcb;
rc_close.rc_handle = BTA_AV_RC_HANDLE_NONE;
p_scb = NULL;
APPL_TRACE_DEBUG("bta_av_rc_closed rc_handle:%d", p_msg->handle);
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
p_rcb = &p_cb->rcb[i];
APPL_TRACE_DEBUG("bta_av_rc_closed rcb[%d] rc_handle:%d, status=0x%x", i, p_rcb->handle, p_rcb->status);
if (p_rcb->handle == p_msg->handle) {
rc_close.rc_handle = i;
p_rcb->status &= ~BTA_AV_RC_CONN_MASK;
p_rcb->peer_features = 0;
p_rcb->peer_ct_features = 0;
p_rcb->peer_tg_features = 0;
APPL_TRACE_DEBUG(" shdl:%d, lidx:%d", p_rcb->shdl, p_rcb->lidx);
if (p_rcb->shdl) {
if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS) {
p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1];
}
if (p_scb) {
bdcpy(rc_close.peer_addr, p_scb->peer_addr);
if (p_scb->rc_handle == p_rcb->handle) {
p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE;
}
APPL_TRACE_DEBUG("shdl:%d, srch:%d", p_rcb->shdl, p_scb->rc_handle);
}
p_rcb->shdl = 0;
} else if (p_rcb->lidx == (BTA_AV_NUM_LINKS + 1) ) {
/* if the RCB uses the extra LCB, use the addr for event and clean it */
p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS];
bdcpy(rc_close.peer_addr, p_msg->peer_addr);
APPL_TRACE_DEBUG("rc_only closed bd_addr:%02x-%02x-%02x-%02x-%02x-%02x",
p_msg->peer_addr[0], p_msg->peer_addr[1],
p_msg->peer_addr[2], p_msg->peer_addr[3],
p_msg->peer_addr[4], p_msg->peer_addr[5]);
p_lcb->conn_msk = 0;
p_lcb->lidx = 0;
}
p_rcb->lidx = 0;
if ((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT) {
/* AVCT CCB is deallocated */
p_rcb->handle = BTA_AV_RC_HANDLE_NONE;
p_rcb->status = 0;
} else {
/* AVCT CCB is still there. dealloc */
bta_av_del_rc(p_rcb);
/* if the AVRCP is no longer listening, create the listening channel */
if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG) {
bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1);
}
}
} else if ((p_rcb->handle != BTA_AV_RC_HANDLE_NONE) && (p_rcb->status & BTA_AV_RC_CONN_MASK)) {
/* at least one channel is still connected */
conn = TRUE;
}
}
if (!conn) {
/* no AVRC channels are connected, go back to INIT state */
bta_av_sm_execute(p_cb, BTA_AV_AVRC_NONE_EVT, NULL);
}
if (rc_close.rc_handle == BTA_AV_RC_HANDLE_NONE) {
rc_close.rc_handle = p_msg->handle;
bdcpy(rc_close.peer_addr, p_msg->peer_addr);
}
(*p_cb->p_cback)(BTA_AV_RC_CLOSE_EVT, (tBTA_AV *) &rc_close);
}
/*******************************************************************************
**
** Function bta_av_rc_disc
**
** Description start AVRC SDP discovery.
**
** Returns void
**
*******************************************************************************/
void bta_av_rc_disc(UINT8 disc)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
tAVRC_SDP_DB_PARAMS db_params;
UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
ATTR_ID_BT_PROFILE_DESC_LIST,
ATTR_ID_SUPPORTED_FEATURES
};
UINT8 hdi;
tBTA_AV_SCB *p_scb;
UINT8 *p_addr = NULL;
UINT8 rc_handle;
APPL_TRACE_DEBUG("bta_av_rc_disc 0x%x, %d", disc, bta_av_cb.disc);
if ((bta_av_cb.disc != 0) || (disc == 0)) {
return;
}
if ((disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK) {
/* this is the rc handle/index to tBTA_AV_RCB */
rc_handle = disc & (~BTA_AV_CHNL_MSK);
if (p_cb->rcb[rc_handle].lidx) {
p_addr = p_cb->lcb[p_cb->rcb[rc_handle].lidx - 1].addr;
}
} else {
hdi = (disc & BTA_AV_HNDL_MSK) - 1;
p_scb = p_cb->p_scb[hdi];
if (p_scb) {
APPL_TRACE_DEBUG("rc_handle %d", p_scb->rc_handle);
p_addr = p_scb->peer_addr;
}
}
if (p_addr) {
/* allocate discovery database */
if (p_cb->p_disc_db == NULL) {
p_cb->p_disc_db = (tSDP_DISCOVERY_DB *) osi_malloc(BTA_AV_DISC_BUF_SIZE);
}
if (p_cb->p_disc_db) {
/* set up parameters */
db_params.db_len = BTA_AV_DISC_BUF_SIZE;
db_params.num_attr = 3;
db_params.p_db = p_cb->p_disc_db;
db_params.p_attrs = attr_list;
/* searching for UUID_SERVCLASS_AV_REMOTE_CONTROL gets both TG and CT */
if (AVRC_FindService(UUID_SERVCLASS_AV_REMOTE_CONTROL, p_addr, &db_params,
bta_av_avrc_sdp_cback) == AVRC_SUCCESS) {
p_cb->disc = disc;
APPL_TRACE_DEBUG("disc %d", p_cb->disc);
}
}
}
}
/*******************************************************************************
**
** Function bta_av_dereg_comp
**
** Description deregister complete. free the stream control block.
**
** Returns void
**
*******************************************************************************/
void bta_av_dereg_comp(tBTA_AV_DATA *p_data)
{
tBTA_AV_CB *p_cb = &bta_av_cb;
tBTA_AV_SCB *p_scb;
tBTA_UTL_COD cod;
UINT8 mask;
BT_HDR *p_buf;
/* find the stream control block */
p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific);
if (p_scb) {
APPL_TRACE_DEBUG("deregistered %d(h%d)", p_scb->chnl, p_scb->hndl);
mask = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
if (p_scb->chnl == BTA_AV_CHNL_AUDIO) {
p_cb->reg_audio &= ~mask;
if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt) {
/* this channel is still marked as open. decrease the count */
bta_av_cb.audio_open_cnt--;
}
p_cb->conn_audio &= ~mask;
if (p_scb->q_tag == BTA_AV_Q_TAG_STREAM && p_scb->a2d_list) {
/* make sure no buffers are in a2d_list */
while (!list_is_empty(p_scb->a2d_list)) {
p_buf = (BT_HDR *)list_front(p_scb->a2d_list);
list_remove(p_scb->a2d_list, p_buf);
osi_free(p_buf);
}
}
/* remove the A2DP SDP record, if no more audio stream is left */
if (!p_cb->reg_audio) {
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REMOTE_CONTROL, BTA_ID_AV);
#endif
bta_av_del_sdp_rec(&p_cb->sdp_a2d_handle);
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
#if (BTA_AV_SINK_INCLUDED == TRUE)
bta_av_del_sdp_rec(&p_cb->sdp_a2d_snk_handle);
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
#endif
}
} else {
p_cb->reg_video &= ~mask;
/* make sure that this channel is not connected */
p_cb->conn_video &= ~mask;
/* remove the VDP SDP record, (only one video stream at most) */
bta_av_del_sdp_rec(&p_cb->sdp_vdp_handle);
bta_sys_remove_uuid(UUID_SERVCLASS_VIDEO_SOURCE);
}
/* make sure that the timer is not active */
bta_sys_stop_timer(&p_scb->timer);
list_free(p_scb->a2d_list);
p_scb->a2d_list = NULL;
utl_freebuf((void **)&p_cb->p_scb[p_scb->hdi]);
}
APPL_TRACE_DEBUG("audio 0x%x, video: 0x%x, disable:%d",
p_cb->reg_audio, p_cb->reg_video, p_cb->disabling);
/* if no stream control block is active */
if ((p_cb->reg_audio + p_cb->reg_video) == 0) {
#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE)
/* deregister from AVDT */
bta_ar_dereg_avdt(BTA_ID_AV);
/* deregister from AVCT */
bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REM_CTRL_TARGET, BTA_ID_AV);
bta_ar_dereg_avct(BTA_ID_AV);
#endif
if (p_cb->disabling) {
p_cb->disabling = FALSE;
bta_av_cb.features = 0;
}
/* Clear the Capturing/Rendering service class bit */
if (p_data->api_reg.tsep == AVDT_TSEP_SRC) {
cod.service = BTM_COD_SERVICE_CAPTURING | BTM_COD_SERVICE_AUDIO;
} else {
#if (BTA_AV_SINK_INCLUDED == TRUE)
cod.service = BTM_COD_SERVICE_RENDERING | BTM_COD_SERVICE_AUDIO;
#endif
}
utl_set_device_class(&cod, BTA_UTL_CLR_COD_SERVICE_CLASS);
}
}
#endif /* BTA_AV_INCLUDED */
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