/******************************************************************************
*
* Copyright 2004-2016 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.
*
******************************************************************************/
#define LOG_TAG "bt_bta_av"
#include "bt_target.h"
#include <base/logging.h>
#include <string.h>
#include "avdt_api.h"
#include "avrcp_service.h"
#include "bta_av_api.h"
#include "bta_av_int.h"
#include "l2c_api.h"
#include "osi/include/list.h"
#include "osi/include/log.h"
#include "osi/include/osi.h"
#include "osi/include/properties.h"
#include "utl.h"
#if (BTA_AR_INCLUDED == TRUE)
#include "bta_ar_api.h"
#endif
/*****************************************************************************
* Constants
****************************************************************************/
/* the timeout to wait for open req after setconfig for incoming connections */
#ifndef BTA_AV_SIGNALLING_TIMEOUT_MS
#define BTA_AV_SIGNALLING_TIMEOUT_MS (8 * 1000) /* 8 seconds */
#endif
/* Time to wait for signalling from SNK when it is initiated from SNK. */
/* If not, we will start signalling from SRC. */
#ifndef BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS
#define BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS (2 * 1000) /* 2 seconds */
#endif
static void bta_av_accept_signalling_timer_cback(void* data);
#ifndef AVRC_MIN_META_CMD_LEN
#define AVRC_MIN_META_CMD_LEN 20
#endif
/*******************************************************************************
*
* 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_t 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_t 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("%s: shdl:%d, srch:%d rc_handle:%d", __func__,
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) */
alarm_cancel(p_scb->avrc_ct_timer);
}
}
APPL_TRACE_EVENT("%s: handle: %d status=0x%x, rc_acp_handle:%d, idx:%d",
__func__, 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(
"%s: end del_rc handle: %d status=0x%x, rc_acp_handle:%d, lidx:%d",
__func__, 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) || (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_t* 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(UNUSED_ATTR uint16_t status) {
BT_HDR* p_msg = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
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_t handle, uint8_t event,
UNUSED_ATTR uint16_t result,
const RawAddress* peer_addr) {
uint16_t msg_event = 0;
APPL_TRACE_EVENT("%s: handle: %d event=0x%x", __func__, handle, event);
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;
} else if (event == AVRC_BROWSE_OPEN_IND_EVT) {
msg_event = BTA_AV_AVRC_BROWSE_OPEN_EVT;
} else if (event == AVRC_BROWSE_CLOSE_IND_EVT) {
msg_event = BTA_AV_AVRC_BROWSE_CLOSE_EVT;
}
if (msg_event) {
tBTA_AV_RC_CONN_CHG* p_msg =
(tBTA_AV_RC_CONN_CHG*)osi_malloc(sizeof(tBTA_AV_RC_CONN_CHG));
p_msg->hdr.event = msg_event;
p_msg->handle = handle;
if (peer_addr) 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_t handle, uint8_t label, uint8_t opcode,
tAVRC_MSG* p_msg) {
uint8_t* p_data_src = NULL;
uint16_t data_len = 0;
APPL_TRACE_DEBUG("%s: handle: %u opcode=0x%x", __func__, handle, opcode);
/* Copy avrc packet into BTA message buffer (for sending to BTA state machine)
*/
/* Get size of payload data (for vendor and passthrough messages only; for
* browsing
* messages, use zero-copy) */
if (opcode == AVRC_OP_VENDOR && p_msg->vendor.p_vendor_data != NULL) {
p_data_src = p_msg->vendor.p_vendor_data;
data_len = (uint16_t)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_t)p_msg->pass.pass_len;
}
/* Create a copy of the message */
tBTA_AV_RC_MSG* p_buf =
(tBTA_AV_RC_MSG*)osi_malloc(sizeof(tBTA_AV_RC_MSG) + data_len);
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_t* p_data_dst = (uint8_t*)(p_buf + 1);
memcpy(p_data_dst, p_data_src, data_len);
/* Update bta message buffer to point to payload data */
/* (Note AVRC_OP_BROWSING uses zero-copy: p_buf->msg.browse.p_browse_data
* already points to original avrc buffer) */
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;
}
if (opcode == AVRC_OP_BROWSE) {
/* set p_pkt to NULL, so avrc would not free the buffer */
p_msg->browse.p_browse_pkt = NULL;
}
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function bta_av_rc_create
*
* Description alloc RCB and call AVRC_Open
*
* Returns the created rc handle
*
******************************************************************************/
uint8_t bta_av_rc_create(tBTA_AV_CB* p_cb, uint8_t role, uint8_t shdl,
uint8_t lidx) {
if (is_new_avrcp_enabled()) {
APPL_TRACE_WARNING("%s: Skipping RC creation for the old AVRCP profile",
__func__);
return BTA_AV_RC_HANDLE_NONE;
}
tAVRC_CONN_CB ccb;
RawAddress bda = RawAddress::kAny;
uint8_t status = BTA_AV_RC_ROLE_ACP;
tBTA_AV_SCB* p_scb = p_cb->p_scb[shdl - 1];
int i;
uint8_t rc_handle;
tBTA_AV_RCB* p_rcb;
if (role == AVCT_INT) {
bda = p_scb->PeerAddress();
status = BTA_AV_RC_ROLE_INT;
} else {
p_rcb = bta_av_get_rcb_by_shdl(shdl);
if (p_rcb != NULL) {
APPL_TRACE_ERROR("%s: ACP handle exist for shdl:%d", __func__, shdl);
return p_rcb->handle;
}
}
ccb.ctrl_cback = base::Bind(bta_av_rc_ctrl_cback);
ccb.msg_cback = base::Bind(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 |
BTA_AV_FEAT_METADATA | 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("%s: found duplicated handle:%d", __func__, rc_handle);
}
p_rcb->handle = rc_handle;
p_rcb->status = status;
p_rcb->shdl = shdl;
p_rcb->lidx = lidx;
p_rcb->peer_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("%s: rc_acp_handle:%d idx:%d", __func__,
p_cb->rc_acp_handle, p_cb->rc_acp_idx);
}
APPL_TRACE_DEBUG(
"%s: create %d, role: %d, shdl:%d, rc_handle:%d, lidx:%d, status:0x%x",
__func__, 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 AVRC_RSP_ACCEPT or AVRC_RSP_NOT_IMPL
*
******************************************************************************/
static tBTA_AV_CODE bta_av_group_navi_supported(uint8_t len, uint8_t* p_data,
bool is_inquiry) {
tBTA_AV_CODE ret = AVRC_RSP_NOT_IMPL;
uint8_t* p_ptr = p_data;
uint16_t u16;
uint32_t 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 = AVRC_RSP_IMPL_STBL;
} else {
if (u16 <= AVRC_PDU_PREV_GROUP)
ret = AVRC_RSP_ACCEPT;
else
ret = AVRC_RSP_REJ;
}
}
}
return ret;
}
/*******************************************************************************
*
* Function bta_av_op_supported
*
* Description Check if remote control operation is supported.
*
* Returns AVRC_RSP_ACCEPT of supported, AVRC_RSP_NOT_IMPL if not.
*
******************************************************************************/
static tBTA_AV_CODE bta_av_op_supported(tBTA_AV_RC rc_id, bool is_inquiry) {
tBTA_AV_CODE ret_code = AVRC_RSP_NOT_IMPL;
if (p_bta_av_rc_id) {
if (is_inquiry) {
if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F))) {
ret_code = AVRC_RSP_IMPL_STBL;
}
} else {
if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F))) {
ret_code = AVRC_RSP_ACCEPT;
} else if ((p_bta_av_cfg->rc_pass_rsp == AVRC_RSP_INTERIM) &&
p_bta_av_rc_id_ac) {
if (p_bta_av_rc_id_ac[rc_id >> 4] & (1 << (rc_id & 0x0F))) {
ret_code = AVRC_RSP_INTERIM;
}
}
}
}
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(const RawAddress& addr, uint8_t op) {
tBTA_AV_CB* p_cb = &bta_av_cb;
int xx;
uint8_t mask;
tBTA_AV_LCB* p_lcb = NULL;
APPL_TRACE_DEBUG("%s: address: %s op:%d", __func__, addr.ToString().c_str(),
op);
for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) {
mask = 1 << xx; /* the used mask for this lcb */
if ((mask & p_cb->conn_lcb) && 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("%s: conn_lcb: 0x%x", __func__, 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_t shdl = 0;
tBTA_AV_LCB* p_lcb;
tBTA_AV_RCB* p_rcb;
uint8_t tmp;
uint8_t 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 && p_scb->PeerAddress() == p_data->rc_conn_chg.peer_addr) {
p_scb->rc_handle = p_data->rc_conn_chg.handle;
APPL_TRACE_DEBUG("%s: shdl:%d, srch %d", __func__, i + 1,
p_scb->rc_handle);
shdl = i + 1;
LOG_INFO(LOG_TAG, "%s: allow incoming AVRCP connections:%d", __func__,
p_scb->use_rc);
alarm_cancel(p_scb->avrc_ct_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("%s: not a valid handle:%d any more", __func__, i);
return;
}
APPL_TRACE_DEBUG("%s: local features %d peer features %d", __func__,
p_cb->features, p_cb->rcb[i].peer_features);
/* listen to browsing channel when the connection is open,
* if peer initiated AVRCP connection and local device supports browsing
* channel */
AVRC_OpenBrowse(p_data->rc_conn_chg.handle, AVCT_ACP);
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("%s: switching RCB rc_acp_handle:%d idx:%d", __func__,
p_cb->rc_acp_handle, p_cb->rc_acp_idx);
}
}
p_cb->rcb[i].shdl = shdl;
rc_open.rc_handle = i;
APPL_TRACE_ERROR("%s: rcb[%d] shdl:%d lidx:%d/%d", __func__, 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];
p_lcb->addr = p_data->rc_conn_chg.peer_addr;
p_lcb->lidx = BTA_AV_NUM_LINKS + 1;
p_cb->rcb[i].lidx = p_lcb->lidx;
p_lcb->conn_msk = 1;
APPL_TRACE_ERROR("%s: bd_addr: %s rcb[%d].lidx=%d, lcb.conn_msk=x%x",
__func__, p_lcb->addr.ToString().c_str(), i,
p_cb->rcb[i].lidx, p_lcb->conn_msk);
disc = p_data->rc_conn_chg.handle | BTA_AV_CHNL_MSK;
}
rc_open.peer_addr = p_data->rc_conn_chg.peer_addr;
rc_open.peer_features = p_cb->rcb[i].peer_features;
rc_open.status = BTA_AV_SUCCESS;
APPL_TRACE_DEBUG("%s: local features:x%x peer_features:x%x", __func__,
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 */
if (p_cb->features & BTA_AV_FEAT_RCCT)
rc_open.peer_features |= BTA_AV_FEAT_RCTG;
if (p_cb->features & BTA_AV_FEAT_RCTG)
rc_open.peer_features |= BTA_AV_FEAT_RCCT;
bta_av_rc_disc(disc);
}
tBTA_AV bta_av_data;
bta_av_data.rc_open = rc_open;
(*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, &bta_av_data);
/* if local initiated AVRCP connection and both peer and locals device support
* browsing channel, open the browsing channel now
* TODO (sanketa): Some TG would not broadcast browse feature hence check
* inter-op. */
if ((p_cb->features & BTA_AV_FEAT_BROWSE) &&
(rc_open.peer_features & BTA_AV_FEAT_BROWSE) &&
((p_cb->rcb[i].status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT)) {
APPL_TRACE_DEBUG("%s: opening AVRC Browse channel", __func__);
AVRC_OpenBrowse(p_data->rc_conn_chg.handle, AVCT_INT);
}
}
/*******************************************************************************
*
* 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;
bool 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_and_reset((void**)&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(UNUSED_ATTR tBTA_AV_CB* p_cb, tBTA_AV_DATA* p_data) {
osi_free_and_reset((void**)&p_data->api_meta_rsp.p_pkt);
}
/*******************************************************************************
*
* Function bta_av_rc_free_browse_msg
*
* Description free an AVRCP browse message buffer.
*
* Returns void
*
******************************************************************************/
void bta_av_rc_free_browse_msg(UNUSED_ATTR tBTA_AV_CB* p_cb,
tBTA_AV_DATA* p_data) {
if (p_data->rc_msg.opcode == AVRC_OP_BROWSE) {
osi_free_and_reset((void**)&p_data->rc_msg.msg.browse.p_browse_pkt);
}
}
/*******************************************************************************
*
* 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;
uint8_t xx;
uint16_t u16;
uint8_t* 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 player_id is valid */
for (xx = 0; xx < p_bta_av_cfg->num_evt_ids; xx++) {
if (*p == p_bta_av_cfg->p_meta_evt_ids[xx]) {
break;
}
}
if (xx == p_bta_av_cfg->num_evt_ids) {
status = AVRC_STS_BAD_PARAM;
}
}
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_t* p_ctype) {
tBTA_AV_EVT evt = BTA_AV_META_MSG_EVT;
uint8_t u8, pdu, *p;
uint16_t u16;
tAVRC_MSG_VENDOR* p_vendor = &p_msg->msg.vendor;
pdu = *(p_vendor->p_vendor_data);
p_rc_rsp->pdu = pdu;
*p_ctype = AVRC_RSP_REJ;
/* Check to ansure a valid minimum meta data length */
if ((AVRC_MIN_META_CMD_LEN + p_vendor->vendor_len) > AVRC_META_CMD_BUF_SIZE) {
/* reject it */
p_rc_rsp->rsp.status = AVRC_STS_BAD_PARAM;
APPL_TRACE_ERROR("%s: Invalid meta-command length: %d", __func__,
p_vendor->vendor_len);
return 0;
}
/* Metadata messages only use PANEL sub-unit type */
if (p_vendor->hdr.subunit_type != AVRC_SUB_PANEL) {
APPL_TRACE_DEBUG("%s: SUBUNIT must be PANEL", __func__);
/* reject it */
evt = 0;
p_vendor->hdr.ctype = AVRC_RSP_NOT_IMPL;
p_vendor->vendor_len = 0;
p_rc_rsp->rsp.status = AVRC_STS_BAD_PARAM;
} else if (!AVRC_IsValidAvcType(pdu, p_vendor->hdr.ctype)) {
APPL_TRACE_DEBUG("%s: Invalid pdu/ctype: 0x%x, %d", __func__, 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;
p_rc_rsp->get_caps.count = p_bta_av_cfg->num_evt_ids;
memcpy(p_rc_rsp->get_caps.param.event_id,
p_bta_av_cfg->p_meta_evt_ids, p_bta_av_cfg->num_evt_ids);
} else {
APPL_TRACE_DEBUG("%s: Invalid capability ID: 0x%x", __func__, 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;
}
}
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;
bool is_inquiry = ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) ||
p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ);
uint8_t ctype = 0;
tAVRC_RESPONSE rc_rsp;
rc_rsp.rsp.status = BTA_AV_STS_NO_RSP;
if (NULL == p_data) {
APPL_TRACE_ERROR("%s: Message from peer with no data", __func__);
return;
}
APPL_TRACE_DEBUG("%s: opcode=%x, ctype=%x", __func__, p_data->rc_msg.opcode,
p_data->rc_msg.msg.hdr.ctype);
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 */
char avrcp_ct_support[PROPERTY_VALUE_MAX];
osi_property_get("bluetooth.pts.avrcp_ct.support", avrcp_ct_support,
"false");
if (p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR) {
p_data->rc_msg.msg.hdr.ctype = AVRC_RSP_NOT_IMPL;
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);
} else if (((p_data->rc_msg.msg.pass.op_id == AVRC_ID_VOL_UP) ||
(p_data->rc_msg.msg.pass.op_id == AVRC_ID_VOL_DOWN)) &&
!strcmp(avrcp_ct_support, "true")) {
p_data->rc_msg.msg.hdr.ctype = AVRC_RSP_ACCEPT;
} 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("%s: ctype %d", __func__, p_data->rc_msg.msg.hdr.ctype)
/* send response */
if (p_data->rc_msg.msg.hdr.ctype != AVRC_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 == AVRC_RSP_ACCEPT ||
p_data->rc_msg.msg.hdr.ctype == AVRC_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 response */
/* id response type is not impl, we have to release label */
else if (p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_NOT_IMPL) {
/* 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;
/* If this response is for vendor unique command */
if ((p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR) &&
(p_data->rc_msg.msg.pass.pass_len > 0)) {
av.remote_rsp.p_data =
(uint8_t*)osi_malloc(p_data->rc_msg.msg.pass.pass_len);
APPL_TRACE_DEBUG("%s: Vendor Unique data len = %d", __func__,
p_data->rc_msg.msg.pass.pass_len);
memcpy(av.remote_rsp.p_data, p_data->rc_msg.msg.pass.p_pass_data,
p_data->rc_msg.msg.pass.pass_len);
}
}
/* must be a bad ctype -> reject*/
else {
p_data->rc_msg.msg.hdr.ctype = AVRC_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 ((p_cb->features & BTA_AV_FEAT_METADATA) &&
(p_vendor->company_id == AVRC_CO_METADATA)) {
av.meta_msg.p_msg = &p_data->rc_msg.msg;
rc_rsp.rsp.status = BTA_AV_STS_NO_RSP;
evt = bta_av_proc_meta_cmd(&rc_rsp, &p_data->rc_msg, &ctype);
} else {
evt = BTA_AV_VENDOR_CMD_EVT;
}
} else if ((p_cb->features & BTA_AV_FEAT_VENDOR) &&
p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_NOT_IMPL) {
/* else if configured to support vendor specific and it's a response */
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 {
evt = BTA_AV_VENDOR_RSP_EVT;
}
} else if (!(p_cb->features & BTA_AV_FEAT_VENDOR) &&
p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ) {
/* else if not configured to support vendor specific and it's a command */
if (p_data->rc_msg.msg.vendor.p_vendor_data[0] == AVRC_PDU_INVALID) {
/* reject it */
p_data->rc_msg.msg.hdr.ctype = AVRC_RSP_REJ;
p_data->rc_msg.msg.vendor.p_vendor_data[4] = AVRC_STS_BAD_CMD;
} else {
p_data->rc_msg.msg.hdr.ctype = AVRC_RSP_NOT_IMPL;
}
AVRC_VendorRsp(p_data->rc_msg.handle, p_data->rc_msg.label,
&p_data->rc_msg.msg.vendor);
}
} else if (p_data->rc_msg.opcode == AVRC_OP_BROWSE) {
/* set up for callback */
av.meta_msg.rc_handle = p_data->rc_msg.handle;
av.meta_msg.company_id = p_vendor->company_id;
av.meta_msg.code = p_data->rc_msg.msg.hdr.ctype;
av.meta_msg.label = p_data->rc_msg.label;
av.meta_msg.p_msg = &p_data->rc_msg.msg;
av.meta_msg.p_data = p_data->rc_msg.msg.browse.p_browse_data;
av.meta_msg.len = p_data->rc_msg.msg.browse.browse_len;
evt = BTA_AV_META_MSG_EVT;
}
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);
}
/* call callback */
if (evt != 0) {
av.remote_cmd.rc_handle = p_data->rc_msg.handle;
(*p_cb->p_cback)(evt, &av);
/* If browsing message, then free the browse message buffer */
bta_av_rc_free_browse_msg(p_cb, p_data);
}
}
/*******************************************************************************
*
* 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_t 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("%s: handle: %d, status=0x%x", __func__, 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) */
alarm_cancel(p_scb->avrc_ct_timer);
}
}
AVRC_Close(p_rcb->handle);
}
}
}
/*******************************************************************************
*
* Function bta_av_rc_browse_close
*
* Description Empty placeholder.
*
* Returns void
*
******************************************************************************/
void bta_av_rc_browse_close(tBTA_AV_CB* p_cb, tBTA_AV_DATA* p_data) {
APPL_TRACE_WARNING("%s: empty placeholder does nothing!", __func__);
}
/*******************************************************************************
*
* Function bta_av_get_shdl
*
* Returns The index to p_scb[]
*
******************************************************************************/
static uint8_t bta_av_get_shdl(tBTA_AV_SCB* p_scb) {
int i;
uint8_t 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, bool started) {
uint8_t started_msk = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
APPL_TRACE_DEBUG("%s: peer %s started:%s started_msk:0x%x", __func__,
p_scb->PeerAddress().ToString().c_str(),
logbool(started).c_str(), started_msk);
if (started) {
bta_av_cb.audio_streams |= started_msk;
/* Let L2CAP know this channel is processed with high priority */
L2CA_SetAclPriority(p_scb->PeerAddress(), L2CAP_PRIORITY_HIGH);
} else {
bta_av_cb.audio_streams &= ~started_msk;
/* Let L2CAP know this channel is processed with low priority */
L2CA_SetAclPriority(p_scb->PeerAddress(), L2CAP_PRIORITY_NORMAL);
}
}
/*******************************************************************************
*
* Function bta_av_conn_chg
*
* Description connetion 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_t mask;
uint8_t conn_msk;
uint8_t 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;
bool 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(
"%s: conn_chg up[%d]: %d, status=0x%x, shdl:%d, lidx:%d",
__func__, 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;
}
}
}
old_msk = p_cb->conn_audio;
p_cb->conn_audio |= mask;
if ((old_msk & mask) == 0) {
/* increase the audio open count, if not set yet */
bta_av_cb.audio_open_cnt++;
}
APPL_TRACE_DEBUG("%s: rc_acp_handle:%d rc_acp_idx:%d", __func__,
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(
"%s: rc_acp is connected && conn_chg on same addr "
"p_lcb_rc->conn_msk:x%x",
__func__, p_lcb_rc->conn_msk);
/* check if the RC is connected to the scb addr */
LOG_INFO(LOG_TAG, "%s: p_lcb_rc->addr: %s conn_chg.peer_addr: %s",
__func__, p_lcb_rc->addr.ToString().c_str(),
p_data->conn_chg.peer_addr.ToString().c_str());
if (p_lcb_rc->conn_msk &&
p_lcb_rc->addr == p_data->conn_chg.peer_addr) {
/* 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("%s: update rc_acp shdl:%d/%d srch:%d", __func__,
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("%s: new rc_acp_handle:%d, idx:%d", __func__,
p_cb->rc_acp_handle, p_cb->rc_acp_idx);
p_rcb2->lidx = (BTA_AV_NUM_LINKS + 1);
APPL_TRACE_DEBUG("%s: rc2 handle:%d lidx:%d/%d", __func__,
p_rcb2->handle, p_rcb2->lidx,
p_cb->lcb[p_rcb2->lidx - 1].lidx);
}
p_rcb->lidx = p_lcb->lidx;
APPL_TRACE_DEBUG("%s: rc handle:%d lidx:%d/%d", __func__,
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;
if (p_scb) {
// The stream is closed. Clear the state.
p_scb->OnDisconnected();
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) */
{ alarm_cancel(p_scb->avrc_ct_timer); }
/* one audio channel goes down. check if we need to restore high
* priority */
chk_restore = true;
}
}
APPL_TRACE_DEBUG("%s: shdl:%d", __func__, index + 1);
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
APPL_TRACE_DEBUG("%s: conn_chg dn[%d]: %d, status=0x%x, shdl:%d, lidx:%d",
__func__, 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]);
/* since the connection is already down and info was removed, clean
* reference */
bta_av_cb.rcb[i].shdl = 0;
break;
}
}
if (p_cb->conn_audio == 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(
"%s: audio:%x up:%d conn_msk:0x%x chk_restore:%d "
"audio_open_cnt:%d",
__func__, p_cb->conn_audio, 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->PeerAddress(),
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, UNUSED_ATTR tBTA_AV_DATA* p_data) {
BT_HDR hdr;
uint16_t xx;
p_cb->disabling = true;
bta_av_close_all_rc(p_cb);
osi_free_and_reset((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++) {
if (p_cb->p_scb[xx] != NULL) {
hdr.layer_specific = xx + 1;
bta_av_api_deregister((tBTA_AV_DATA*)&hdr);
}
}
alarm_free(p_cb->link_signalling_timer);
p_cb->link_signalling_timer = NULL;
alarm_free(p_cb->accept_signalling_timer);
p_cb->accept_signalling_timer = NULL;
}
/*******************************************************************************
*
* 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);
alarm_cancel(bta_av_cb.link_signalling_timer);
}
/**
* Find the index for the free LCB entry to use.
*
* The selection order is:
* (1) Find the index if there is already SCB entry for the peer address
* (2) If there is no SCB entry for the peer address, find the first
* SCB entry that is not assigned.
*
* @param peer_address the peer address to use
* @return the index for the free LCB entry to use or BTA_AV_NUM_LINKS
* if no entry is found
*/
static uint8_t bta_av_find_lcb_index_by_scb_and_address(
const RawAddress& peer_address) {
APPL_TRACE_DEBUG("%s: peer_address: %s conn_lcb: 0x%x", __func__,
peer_address.ToString().c_str(), bta_av_cb.conn_lcb);
// Find the index if there is already SCB entry for the peer address
for (uint8_t index = 0; index < BTA_AV_NUM_LINKS; index++) {
uint8_t mask = 1 << index;
if (mask & bta_av_cb.conn_lcb) {
continue;
}
tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[index];
if (p_scb == nullptr) {
continue;
}
if (p_scb->PeerAddress() == peer_address) {
return index;
}
}
// Find the first SCB entry that is not assigned.
for (uint8_t index = 0; index < BTA_AV_NUM_LINKS; index++) {
uint8_t mask = 1 << index;
if (mask & bta_av_cb.conn_lcb) {
continue;
}
tBTA_AV_SCB* p_scb = bta_av_cb.p_scb[index];
if (p_scb == nullptr) {
continue;
}
if (!p_scb->IsAssigned()) {
return index;
}
}
return BTA_AV_NUM_LINKS;
}
/*******************************************************************************
*
* 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_t event = p_data->str_msg.hdr.layer_specific;
tBTA_AV_CB* p_cb = &bta_av_cb;
uint32_t xx;
uint8_t mask;
tBTA_AV_LCB* p_lcb = NULL;
APPL_TRACE_DEBUG("%s: event: %d", __func__, event);
if (event == AVDT_CONNECT_IND_EVT) {
APPL_TRACE_DEBUG("%s: AVDT_CONNECT_IND_EVT: peer %s", __func__,
p_data->str_msg.bd_addr.ToString().c_str());
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 */
xx = bta_av_find_lcb_index_by_scb_and_address(p_data->str_msg.bd_addr);
/* 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("%s: av scb not available for avdt connection for %s",
__func__, p_data->str_msg.bd_addr.ToString().c_str());
AVDT_DisconnectReq(p_data->str_msg.bd_addr, NULL);
return;
}
LOG_INFO(LOG_TAG,
"%s: AVDT_CONNECT_IND_EVT: peer %s selected lcb_index %d",
__func__, p_data->str_msg.bd_addr.ToString().c_str(), xx);
tBTA_AV_SCB* p_scb = p_cb->p_scb[xx];
mask = 1 << xx;
p_lcb = &p_cb->lcb[xx];
p_lcb->lidx = xx + 1;
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("%s: start sig timer %d", __func__, p_data->hdr.offset);
if (p_data->hdr.offset == AVDT_ACP) {
APPL_TRACE_DEBUG("%s: Incoming L2CAP acquired, set state as incoming",
__func__);
p_scb->OnConnected(p_data->str_msg.bd_addr);
p_scb->use_rc = true; /* allowing RC for incoming connection */
bta_av_ssm_execute(p_scb, 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_SIGNALLING_TIMEOUT_MS.
* The following function shall send the event and start the
* recurring timer
*/
bta_av_signalling_timer(NULL);
APPL_TRACE_DEBUG("%s: Re-start timer for AVDTP service", __func__);
bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->PeerAddress());
/* Possible collision : need to avoid outgoing processing while the
* timer is running */
p_scb->coll_mask = BTA_AV_COLL_INC_TMR;
alarm_set_on_mloop(
p_cb->accept_signalling_timer, BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS,
bta_av_accept_signalling_timer_cback, UINT_TO_PTR(xx));
}
}
}
#if (BTA_AR_INCLUDED == TRUE)
else if (event == BTA_AR_AVDT_CONN_EVT) {
alarm_cancel(bta_av_cb.link_signalling_timer);
}
#endif
else {
/* disconnected. */
APPL_TRACE_DEBUG("%s: bta_av_cb.conn_lcb is %d", __func__,
bta_av_cb.conn_lcb);
p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FREE);
if (p_lcb && (p_lcb->conn_msk || bta_av_cb.conn_lcb)) {
APPL_TRACE_DEBUG("%s: conn_msk: 0x%x", __func__, p_lcb->conn_msk);
/* clean up ssm */
for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) {
if (p_cb->p_scb[xx] &&
p_cb->p_scb[xx]->PeerAddress() == p_data->str_msg.bd_addr) {
APPL_TRACE_DEBUG("%s: Closing timer for AVDTP service", __func__);
bta_sys_conn_close(BTA_ID_AV, p_cb->p_scb[xx]->app_id,
p_cb->p_scb[xx]->PeerAddress());
}
mask = 1 << (xx + 1);
if (((mask & p_lcb->conn_msk) || bta_av_cb.conn_lcb) &&
p_cb->p_scb[xx] &&
p_cb->p_scb[xx]->PeerAddress() == p_data->str_msg.bd_addr) {
APPL_TRACE_WARNING("%s: Sending AVDT_DISCONNECT_EVT peer_addr=%s",
__func__,
p_cb->p_scb[xx]->PeerAddress().ToString().c_str());
bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_AVDT_DISCONNECT_EVT, NULL);
}
}
}
}
APPL_TRACE_DEBUG("%s: sig_chg conn_lcb: 0x%x", __func__, p_cb->conn_lcb);
}
/*******************************************************************************
*
* Function bta_av_signalling_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_SIGNALLING_TIMEOUT_MS.
*
* Returns void
*
******************************************************************************/
void bta_av_signalling_timer(UNUSED_ATTR tBTA_AV_DATA* p_data) {
tBTA_AV_CB* p_cb = &bta_av_cb;
int xx;
uint8_t mask;
tBTA_AV_LCB* p_lcb = NULL;
APPL_TRACE_DEBUG("%s: conn_lcb=0x%x", __func__, p_cb->conn_lcb);
for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) {
p_lcb = &p_cb->lcb[xx];
mask = 1 << xx;
APPL_TRACE_DEBUG(
"%s: index=%d conn_lcb=0x%x peer=%s conn_mask=0x%x lidx=%d", __func__,
xx, p_cb->conn_lcb, p_lcb->addr.ToString().c_str(), p_lcb->conn_msk,
p_lcb->lidx);
if (mask & p_cb->conn_lcb) {
/* this entry is used. check if it is connected */
if (!p_lcb->conn_msk) {
bta_sys_start_timer(p_cb->link_signalling_timer,
BTA_AV_SIGNALLING_TIMEOUT_MS,
BTA_AV_SIGNALLING_TIMER_EVT, 0);
tBTA_AV_PEND pend;
pend.bd_addr = p_lcb->addr;
tBTA_AV bta_av_data;
bta_av_data.pend = pend;
APPL_TRACE_DEBUG(
"%s: BTA_AV_PENDING_EVT for %s index=%d conn_mask=0x%x lidx=%d",
__func__, pend.bd_addr.ToString().c_str(), xx, p_lcb->conn_msk,
p_lcb->lidx);
(*p_cb->p_cback)(BTA_AV_PENDING_EVT, &bta_av_data);
}
}
}
}
/*******************************************************************************
*
* Function bta_av_accept_signalling_timer_cback
*
* Description Process the timeout when SRC is accepting connection
* and SNK did not start signalling.
*
* Returns void
*
******************************************************************************/
static void bta_av_accept_signalling_timer_cback(void* data) {
uint32_t inx = PTR_TO_UINT(data);
tBTA_AV_CB* p_cb = &bta_av_cb;
tBTA_AV_SCB* p_scb = NULL;
if (inx < BTA_AV_NUM_STRS) {
p_scb = p_cb->p_scb[inx];
}
if (p_scb) {
APPL_TRACE_DEBUG("%s: coll_mask = 0x%02X", __func__, 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)) {
APPL_TRACE_DEBUG("%s: stream state opening: SDP started = %d", __func__,
p_scb->sdp_discovery_started);
if (p_scb->sdp_discovery_started) {
/* We are still doing SDP. Run the timer again. */
p_scb->coll_mask |= BTA_AV_COLL_INC_TMR;
alarm_set_on_mloop(p_cb->accept_signalling_timer,
BTA_AV_ACCEPT_SIGNALLING_TIMEOUT_MS,
bta_av_accept_signalling_timer_cback,
UINT_TO_PTR(inx));
} 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 */
APPL_TRACE_DEBUG("%s: stream state incoming", __func__);
/* 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 */
tBTA_AV_API_OPEN* p_buf =
(tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN));
bta_sys_sendmsg(p_buf);
}
}
}
}
}
/*******************************************************************************
*
* Function bta_av_check_peer_features
*
* Description check supported 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_features(uint16_t service_uuid) {
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_t peer_rc_version = 0;
uint16_t categories = 0;
APPL_TRACE_DEBUG("%s: service_uuid:x%x", __func__, service_uuid);
/* loop through all records we found */
while (true) {
/* get next record; if none found, we're done */
p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec);
if (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("%s: peer_rc_version 0x%x", __func__, 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) {
/* get supported categories */
p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES);
if (p_attr != NULL) {
categories = p_attr->attr_value.v.u16;
if (categories & AVRC_SUPF_CT_CAT2)
peer_features |= (BTA_AV_FEAT_ADV_CTRL);
if (categories & AVRC_SUPF_CT_BROWSE)
peer_features |= (BTA_AV_FEAT_BROWSE);
}
}
}
}
APPL_TRACE_DEBUG("%s: peer_features:x%x", __func__, peer_features);
return peer_features;
}
/*******************************************************************************
*
* Function bta_avk_check_peer_features
*
* Description check supported 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_avk_check_peer_features(uint16_t service_uuid) {
tBTA_AV_FEAT peer_features = 0;
tBTA_AV_CB* p_cb = &bta_av_cb;
APPL_TRACE_DEBUG("%s: service_uuid:x%x", __func__, service_uuid);
/* loop through all records we found */
tSDP_DISC_REC* p_rec =
SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, NULL);
while (p_rec) {
APPL_TRACE_DEBUG("%s: found Service record for x%x", __func__,
service_uuid);
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) */
uint16_t peer_rc_version = 0;
bool val = SDP_FindProfileVersionInRec(
p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL, &peer_rc_version);
APPL_TRACE_DEBUG("%s: peer_rc_version for TG 0x%x, profile_found %d",
__func__, peer_rc_version, val);
if (peer_rc_version >= AVRC_REV_1_3)
peer_features |= (BTA_AV_FEAT_VENDOR | BTA_AV_FEAT_METADATA);
/*
* Though Absolute Volume came after in 1.4 and above, but there are few
* devices
* in market which supports absolute Volume and they are still 1.3
* TO avoid IOT issuses with those devices, we check for 1.3 as minimum
* version
*/
if (peer_rc_version >= AVRC_REV_1_3) {
/* get supported features */
tSDP_DISC_ATTR* p_attr =
SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES);
if (p_attr != NULL) {
uint16_t categories = p_attr->attr_value.v.u16;
if (categories & AVRC_SUPF_CT_CAT2)
peer_features |= (BTA_AV_FEAT_ADV_CTRL);
if (categories & AVRC_SUPF_CT_APP_SETTINGS)
peer_features |= (BTA_AV_FEAT_APP_SETTING);
if (categories & AVRC_SUPF_CT_BROWSE)
peer_features |= (BTA_AV_FEAT_BROWSE);
}
}
}
/* get next record; if none found, we're done */
p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec);
}
APPL_TRACE_DEBUG("%s: peer_features:x%x", __func__, peer_features);
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(UNUSED_ATTR tBTA_AV_DATA* p_data) {
tBTA_AV_CB* p_cb = &bta_av_cb;
tBTA_AV_SCB* p_scb = NULL;
tBTA_AV_LCB* p_lcb;
uint8_t rc_handle;
tBTA_AV_FEAT peer_features = 0; /* peer features mask */
APPL_TRACE_DEBUG("%s: bta_av_rc_disc_done disc:x%x", __func__, 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("%s: rc_handle %d", __func__, rc_handle);
#if (BTA_AV_SINK_INCLUDED == TRUE)
if (p_cb->sdp_a2dp_snk_handle) {
/* This is Sink + CT + TG(Abs Vol) */
peer_features =
bta_avk_check_peer_features(UUID_SERVCLASS_AV_REM_CTRL_TARGET);
APPL_TRACE_DEBUG("%s: populating rem ctrl target features %d", __func__,
peer_features);
if (BTA_AV_FEAT_ADV_CTRL &
bta_avk_check_peer_features(UUID_SERVCLASS_AV_REMOTE_CONTROL))
peer_features |= (BTA_AV_FEAT_ADV_CTRL | BTA_AV_FEAT_RCCT);
} else
#endif
if (p_cb->sdp_a2dp_handle) {
/* check peer version and whether support CT and TG role */
peer_features =
bta_av_check_peer_features(UUID_SERVCLASS_AV_REMOTE_CONTROL);
if ((p_cb->features & BTA_AV_FEAT_ADV_CTRL) &&
((peer_features & BTA_AV_FEAT_ADV_CTRL) == 0)) {
/* if we support advance control and peer does not, check their support on
* TG role
* some implementation uses 1.3 on CT ans 1.4 on TG */
peer_features |=
bta_av_check_peer_features(UUID_SERVCLASS_AV_REM_CTRL_TARGET);
}
/* Change our features if the remote AVRCP version is 1.3 or less */
tSDP_DISC_REC* p_rec = nullptr;
p_rec = SDP_FindServiceInDb(p_cb->p_disc_db,
UUID_SERVCLASS_AV_REMOTE_CONTROL, p_rec);
if (p_rec != NULL &&
SDP_FindAttributeInRec(p_rec, ATTR_ID_BT_PROFILE_DESC_LIST) != NULL) {
/* get profile version (if failure, version parameter is not updated) */
uint16_t peer_rc_version = 0xFFFF; // Don't change the AVRCP version
SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL,
&peer_rc_version);
if (peer_rc_version <= AVRC_REV_1_3) {
APPL_TRACE_DEBUG("%s: Using AVRCP 1.3 Capabilities with remote device",
__func__);
p_bta_av_cfg = &bta_av_cfg_compatibility;
}
}
}
p_cb->disc = 0;
osi_free_and_reset((void**)&p_cb->p_disc_db);
APPL_TRACE_DEBUG("%s: peer_features 0x%x, features 0x%x", __func__,
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->PeerAddress(), BTA_AV_LCB_FIND);
if (p_lcb) {
rc_handle = bta_av_rc_create(p_cb, AVCT_INT,
(uint8_t)(p_scb->hdi + 1), p_lcb->lidx);
p_cb->rcb[rc_handle].peer_features = peer_features;
} else {
APPL_TRACE_ERROR("%s: can not find LCB!!", __func__);
}
} else if (p_scb->use_rc) {
/* can not find AVRC on peer device. report failure */
p_scb->use_rc = false;
tBTA_AV_RC_OPEN rc_open;
rc_open.peer_addr = p_scb->PeerAddress();
rc_open.peer_features = 0;
rc_open.status = BTA_AV_FAIL_SDP;
tBTA_AV bta_av_data;
bta_av_data.rc_open = rc_open;
(*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, &bta_av_data);
}
}
} else {
tBTA_AV_RC_FEAT rc_feat;
p_cb->rcb[rc_handle].peer_features = peer_features;
rc_feat.rc_handle = rc_handle;
rc_feat.peer_features = peer_features;
if (p_scb == NULL) {
/*
* In case scb is not created by the time we are done with SDP
* we still need to send RC feature event. So we need to get BD
* from Message
*/
rc_feat.peer_addr = p_cb->lcb[p_cb->rcb[rc_handle].lidx].addr;
} else {
rc_feat.peer_addr = p_scb->PeerAddress();
}
tBTA_AV bta_av_data;
bta_av_data.rc_feat = rc_feat;
(*p_cb->p_cback)(BTA_AV_RC_FEAT_EVT, &bta_av_data);
}
}
/*******************************************************************************
*
* 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;
bool conn = false;
tBTA_AV_LCB* p_lcb;
rc_close.rc_handle = BTA_AV_RC_HANDLE_NONE;
p_scb = NULL;
APPL_TRACE_DEBUG("%s: rc_handle:%d", __func__, p_msg->handle);
for (i = 0; i < BTA_AV_NUM_RCB; i++) {
p_rcb = &p_cb->rcb[i];
APPL_TRACE_DEBUG("%s: rcb[%d] rc_handle:%d, status=0x%x", __func__, 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;
APPL_TRACE_DEBUG("%s: shdl:%d, lidx:%d", __func__, 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) {
rc_close.peer_addr = p_scb->PeerAddress();
if (p_scb->rc_handle == p_rcb->handle)
p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE;
APPL_TRACE_DEBUG("%s: shdl:%d, srch:%d", __func__, 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];
rc_close.peer_addr = p_msg->peer_addr;
LOG_INFO(LOG_TAG, "%s: rc_only closed bd_addr: %s", __func__,
p_msg->peer_addr.ToString().c_str());
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;
rc_close.peer_addr = p_msg->peer_addr;
}
tBTA_AV bta_av_data;
bta_av_data.rc_close = rc_close;
(*p_cb->p_cback)(BTA_AV_RC_CLOSE_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_rc_browse_opened
*
* Description AVRC browsing channel is opened
*
* Returns void
*
******************************************************************************/
void bta_av_rc_browse_opened(tBTA_AV_DATA* p_data) {
tBTA_AV_CB* p_cb = &bta_av_cb;
tBTA_AV_RC_CONN_CHG* p_msg = (tBTA_AV_RC_CONN_CHG*)p_data;
tBTA_AV_RC_BROWSE_OPEN rc_browse_open;
LOG_INFO(LOG_TAG, "%s: peer_addr: %s rc_handle:%d", __func__,
p_msg->peer_addr.ToString().c_str(), p_msg->handle);
rc_browse_open.status = BTA_AV_SUCCESS;
rc_browse_open.rc_handle = p_msg->handle;
rc_browse_open.peer_addr = p_msg->peer_addr;
tBTA_AV bta_av_data;
bta_av_data.rc_browse_open = rc_browse_open;
(*p_cb->p_cback)(BTA_AV_RC_BROWSE_OPEN_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_rc_browse_closed
*
* Description AVRC browsing channel is closed
*
* Returns void
*
******************************************************************************/
void bta_av_rc_browse_closed(tBTA_AV_DATA* p_data) {
tBTA_AV_CB* p_cb = &bta_av_cb;
tBTA_AV_RC_CONN_CHG* p_msg = (tBTA_AV_RC_CONN_CHG*)p_data;
tBTA_AV_RC_BROWSE_CLOSE rc_browse_close;
LOG_INFO(LOG_TAG, "%s: peer_addr: %s rc_handle:%d", __func__,
p_msg->peer_addr.ToString().c_str(), p_msg->handle);
rc_browse_close.rc_handle = p_msg->handle;
rc_browse_close.peer_addr = p_msg->peer_addr;
tBTA_AV bta_av_data;
bta_av_data.rc_browse_close = rc_browse_close;
(*p_cb->p_cback)(BTA_AV_RC_BROWSE_CLOSE_EVT, &bta_av_data);
}
/*******************************************************************************
*
* Function bta_av_rc_disc
*
* Description start AVRC SDP discovery.
*
* Returns void
*
******************************************************************************/
void bta_av_rc_disc(uint8_t disc) {
tBTA_AV_CB* p_cb = &bta_av_cb;
tAVRC_SDP_DB_PARAMS db_params;
uint16_t attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST,
ATTR_ID_BT_PROFILE_DESC_LIST,
ATTR_ID_SUPPORTED_FEATURES};
uint8_t hdi;
tBTA_AV_SCB* p_scb;
RawAddress peer_addr = RawAddress::kEmpty;
uint8_t rc_handle;
APPL_TRACE_DEBUG("%s: disc: 0x%x, bta_av_cb.disc: 0x%x", __func__, 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) {
peer_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("%s: rc_handle %d", __func__, p_scb->rc_handle);
peer_addr = p_scb->PeerAddress();
}
}
if (!peer_addr.IsEmpty()) {
/* 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);
/* 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, peer_addr,
&db_params,
base::Bind(bta_av_avrc_sdp_cback)) == AVRC_SUCCESS) {
p_cb->disc = disc;
APPL_TRACE_DEBUG("%s: disc 0x%x", __func__, 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_t 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("%s: deregistered %d(h%d)", __func__, p_scb->chnl,
p_scb->hndl);
mask = BTA_AV_HNDL_TO_MSK(p_scb->hdi);
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->a2dp_list) {
/* make sure no buffers are in a2dp_list */
while (!list_is_empty(p_scb->a2dp_list)) {
p_buf = (BT_HDR*)list_front(p_scb->a2dp_list);
list_remove(p_scb->a2dp_list, p_buf);
osi_free(p_buf);
}
}
/* remove the A2DP SDP record, if no more audio stream is left */
if (!p_cb->reg_audio) {
#if (BTA_AR_INCLUDED == TRUE)
bta_ar_dereg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, BTA_ID_AV);
#endif
if (p_cb->sdp_a2dp_handle) {
bta_av_del_sdp_rec(&p_cb->sdp_a2dp_handle);
p_cb->sdp_a2dp_handle = 0;
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SOURCE);
}
#if (BTA_AV_SINK_INCLUDED == TRUE)
if (p_cb->sdp_a2dp_snk_handle) {
bta_av_del_sdp_rec(&p_cb->sdp_a2dp_snk_handle);
p_cb->sdp_a2dp_snk_handle = 0;
bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK);
}
#endif
}
bta_av_free_scb(p_scb);
}
APPL_TRACE_DEBUG("%s: audio 0x%x, disable:%d", __func__, p_cb->reg_audio,
p_cb->disabling);
/* if no stream control block is active */
if (p_cb->reg_audio == 0) {
#if (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 service class bit */
cod.service = BTM_COD_SERVICE_CAPTURING;
utl_set_device_class(&cod, BTA_UTL_CLR_COD_SERVICE_CLASS);
}
}