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esp-idf/components/bt/bluedroid/bta/av/bta_av_api.c
wangmengyang 01994059e2 component/bt: bugfix that A2DP sink device can be connected by another A2DP sink device 
In pevious implementation, A2DP sink will register an A2DP source Stream End Point(SEP) although the SEP is not\
supposed to be used. Now remove the unused SEP for source so that only one role of A2DP can be supported at one
time. Service record in local SDP server only includes at most one service for A2DP sink role or source
2018-09-13 17:58:00 +08:00

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/******************************************************************************
*
* Copyright (C) 2011-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This is the implementation of the API for the advanced audio/video (AV)
* subsystem of BTA, Broadcom's Bluetooth application layer for mobile
* phones.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
#include "osi/allocator.h"
#include "bta/bta_api.h"
#include "bta/bta_sys.h"
#include "bta/bta_av_api.h"
#include "bta_av_int.h"
#include <string.h>
/*****************************************************************************
** Constants
*****************************************************************************/
static const tBTA_SYS_REG bta_av_reg = {
bta_av_hdl_event,
BTA_AvDisable
};
/*******************************************************************************
**
** Function BTA_AvEnable
**
** Description Enable the advanced audio/video service. When the enable
** operation is complete the callback function will be
** called with a BTA_AV_ENABLE_EVT. This function must
** be called before other function in the AV API are
** called.
**
** Returns void
**
*******************************************************************************/
void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features, tBTA_AV_CBACK *p_cback)
{
tBTA_AV_API_ENABLE *p_buf;
/* register with BTA system manager */
bta_sys_register(BTA_ID_AV, &bta_av_reg);
if ((p_buf = (tBTA_AV_API_ENABLE *) osi_malloc(sizeof(tBTA_AV_API_ENABLE))) != NULL) {
p_buf->hdr.event = BTA_AV_API_ENABLE_EVT;
p_buf->p_cback = p_cback;
p_buf->features = features;
p_buf->sec_mask = sec_mask;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDisable
**
** Description Disable the advanced audio/video service.
**
** Returns void
**
*******************************************************************************/
void BTA_AvDisable(void)
{
BT_HDR *p_buf;
bta_sys_deregister(BTA_ID_AV);
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_DISABLE_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvRegister
**
** Description Register the audio or video service to stack. When the
** operation is complete the callback function will be
** called with a BTA_AV_REGISTER_EVT. This function must
** be called before AVDT stream is open.
**
**
** Returns void
**
*******************************************************************************/
void BTA_AvRegister(tBTA_AV_CHNL chnl, const char *p_service_name, UINT8 app_id, tBTA_AV_DATA_CBACK *p_data_cback, tBTA_AV_CO_FUNCTS *bta_av_cos, UINT8 tsep)
{
tBTA_AV_API_REG *p_buf;
if ((p_buf = (tBTA_AV_API_REG *) osi_malloc(sizeof(tBTA_AV_API_REG))) != NULL) {
p_buf->hdr.layer_specific = chnl;
p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
if (p_service_name) {
BCM_STRNCPY_S(p_buf->p_service_name, sizeof(p_buf->p_service_name), p_service_name, BTA_SERVICE_NAME_LEN);
p_buf->p_service_name[BTA_SERVICE_NAME_LEN - 1] = 0;
} else {
p_buf->p_service_name[0] = 0;
}
p_buf->app_id = app_id;
p_buf->p_app_data_cback = p_data_cback;
p_buf->bta_av_cos = bta_av_cos;
p_buf->tsep = tsep;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDeregister
**
** Description Deregister the audio or video service
**
** Returns void
**
*******************************************************************************/
void BTA_AvDeregister(tBTA_AV_HNDL hndl)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->layer_specific = hndl;
p_buf->event = BTA_AV_API_DEREGISTER_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvOpen
**
** Description Opens an advanced audio/video connection to a peer device.
** When connection is open callback function is called
** with a BTA_AV_OPEN_EVT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle, BOOLEAN use_rc, tBTA_SEC sec_mask,
UINT16 uuid)
{
tBTA_AV_API_OPEN *p_buf;
if ((p_buf = (tBTA_AV_API_OPEN *) osi_malloc(sizeof(tBTA_AV_API_OPEN))) != NULL) {
p_buf->hdr.event = BTA_AV_API_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
bdcpy(p_buf->bd_addr, bd_addr);
p_buf->use_rc = use_rc;
p_buf->sec_mask = sec_mask;
p_buf->switch_res = BTA_AV_RS_NONE;
p_buf->uuid = uuid;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvClose
**
** Description Close the current streams.
**
** Returns void
**
*******************************************************************************/
void BTA_AvClose(tBTA_AV_HNDL handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_CLOSE_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDisconnect
**
** Description Close the connection to the address.
**
** Returns void
**
*******************************************************************************/
void BTA_AvDisconnect(BD_ADDR bd_addr)
{
tBTA_AV_API_DISCNT *p_buf;
if ((p_buf = (tBTA_AV_API_DISCNT *) osi_malloc(sizeof(tBTA_AV_API_DISCNT))) != NULL) {
p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT;
bdcpy(p_buf->bd_addr, bd_addr);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvStart
**
** Description Start audio/video stream data transfer.
**
** Returns void
**
*******************************************************************************/
void BTA_AvStart(void)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_START_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvEnable_Sink
**
** Description Enable/Disable A2DP Sink..
**
** Returns void
**
*******************************************************************************/
void BTA_AvEnable_Sink(int enable)
{
#if (BTA_AV_SINK_INCLUDED == TRUE)
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_SINK_ENABLE_EVT;
p_buf->layer_specific = enable;
bta_sys_sendmsg(p_buf);
}
#else
return;
#endif
}
/*******************************************************************************
**
** Function BTA_AvStop
**
** Description Stop audio/video stream data transfer.
** If suspend is TRUE, this function sends AVDT suspend signal
** to the connected peer(s).
**
** Returns void
**
*******************************************************************************/
void BTA_AvStop(BOOLEAN suspend)
{
tBTA_AV_API_STOP *p_buf;
if ((p_buf = (tBTA_AV_API_STOP *) osi_malloc(sizeof(tBTA_AV_API_STOP))) != NULL) {
p_buf->hdr.event = BTA_AV_API_STOP_EVT;
p_buf->flush = TRUE;
p_buf->suspend = suspend;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvReconfig
**
** Description Reconfigure the audio/video stream.
** If suspend is TRUE, this function tries the suspend/reconfigure
** procedure first.
** If suspend is FALSE or when suspend/reconfigure fails,
** this function closes and re-opens the AVDT connection.
**
** Returns void
**
*******************************************************************************/
void BTA_AvReconfig(tBTA_AV_HNDL hndl, BOOLEAN suspend, UINT8 sep_info_idx,
UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info)
{
tBTA_AV_API_RCFG *p_buf;
if ((p_buf = (tBTA_AV_API_RCFG *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_RCFG) + num_protect))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_RECONFIG_EVT;
p_buf->num_protect = num_protect;
p_buf->suspend = suspend;
p_buf->sep_info_idx = sep_info_idx;
p_buf->p_protect_info = (UINT8 *)(p_buf + 1);
memcpy(p_buf->codec_info, p_codec_info, AVDT_CODEC_SIZE);
memcpy(p_buf->p_protect_info, p_protect_info, num_protect);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvProtectReq
**
** Description Send a content protection request. This function can only
** be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvProtectReq(tBTA_AV_HNDL hndl, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_PROTECT_REQ *p_buf;
if ((p_buf = (tBTA_AV_API_PROTECT_REQ *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_PROTECT_REQ) + len))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_PROTECT_REQ_EVT;
p_buf->len = len;
if (p_data == NULL) {
p_buf->p_data = NULL;
} else {
p_buf->p_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->p_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvProtectRsp
**
** Description Send a content protection response. This function must
** be called if a BTA_AV_PROTECT_REQ_EVT is received.
** This function can only be used if AV is enabled with
** feature BTA_AV_FEAT_PROTECT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, UINT8 error_code, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_PROTECT_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_PROTECT_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_PROTECT_RSP) + len))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_PROTECT_RSP_EVT;
p_buf->len = len;
p_buf->error_code = error_code;
if (p_data == NULL) {
p_buf->p_data = NULL;
} else {
p_buf->p_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->p_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvRemoteCmd
**
** Description Send a remote control command. This function can only
** be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvRemoteCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_RC rc_id, tBTA_AV_STATE key_state)
{
tBTA_AV_API_REMOTE_CMD *p_buf;
if ((p_buf = (tBTA_AV_API_REMOTE_CMD *) osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD))) != NULL) {
p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.op_id = rc_id;
p_buf->msg.state = key_state;
p_buf->msg.p_pass_data = NULL;
p_buf->msg.pass_len = 0;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvVendorCmd
**
** Description Send a vendor dependent remote control command. This
** function can only be used if AV is enabled with feature
** BTA_AV_FEAT_VENDOR.
**
** Returns void
**
*******************************************************************************/
void BTA_AvVendorCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_VENDOR *p_buf;
if ((p_buf = (tBTA_AV_API_VENDOR *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL) {
p_buf->hdr.event = BTA_AV_API_VENDOR_CMD_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.hdr.ctype = cmd_code;
p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
p_buf->msg.hdr.subunit_id = 0;
p_buf->msg.company_id = p_bta_av_cfg->company_id;
p_buf->label = label;
p_buf->msg.vendor_len = len;
if (p_data == NULL) {
p_buf->msg.p_vendor_data = NULL;
} else {
p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->msg.p_vendor_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvVendorRsp
**
** Description Send a vendor dependent remote control response.
** This function must be called if a BTA_AV_VENDOR_CMD_EVT
** is received. This function can only be used if AV is
** enabled with feature BTA_AV_FEAT_VENDOR.
**
** Returns void
**
*******************************************************************************/
void BTA_AvVendorRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code, UINT8 *p_data, UINT16 len, UINT32 company_id)
{
tBTA_AV_API_VENDOR *p_buf;
if ((p_buf = (tBTA_AV_API_VENDOR *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL) {
p_buf->hdr.event = BTA_AV_API_VENDOR_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.hdr.ctype = rsp_code;
p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
p_buf->msg.hdr.subunit_id = 0;
if (company_id) {
p_buf->msg.company_id = company_id;
} else {
p_buf->msg.company_id = p_bta_av_cfg->company_id;
}
p_buf->label = label;
p_buf->msg.vendor_len = len;
if (p_data == NULL) {
p_buf->msg.p_vendor_data = NULL;
} else {
p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->msg.p_vendor_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvOpenRc
**
** Description Open an AVRCP connection toward the device with the
** specified handle
**
** Returns void
**
*******************************************************************************/
void BTA_AvOpenRc(tBTA_AV_HNDL handle)
{
tBTA_AV_API_OPEN_RC *p_buf;
if ((p_buf = (tBTA_AV_API_OPEN_RC *) osi_malloc(sizeof(tBTA_AV_API_OPEN_RC))) != NULL) {
p_buf->hdr.event = BTA_AV_API_RC_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvCloseRc
**
** Description Close an AVRCP connection
**
** Returns void
**
*******************************************************************************/
void BTA_AvCloseRc(UINT8 rc_handle)
{
tBTA_AV_API_CLOSE_RC *p_buf;
if ((p_buf = (tBTA_AV_API_CLOSE_RC *) osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC))) != NULL) {
p_buf->hdr.event = BTA_AV_API_RC_CLOSE_EVT;
p_buf->hdr.layer_specific = rc_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvMetaRsp
**
** Description Send a Metadata/Advanced Control response. The message contained
** in p_pkt can be composed with AVRC utility functions.
** This function can only be used if AV is enabled with feature
** BTA_AV_FEAT_METADATA.
**
** Returns void
**
*******************************************************************************/
void BTA_AvMetaRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
BT_HDR *p_pkt)
{
tBTA_AV_API_META_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_META_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL) {
p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->rsp_code = rsp_code;
p_buf->p_pkt = p_pkt;
p_buf->is_rsp = TRUE;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
} else if (p_pkt) {
osi_free(p_pkt);
}
}
/*******************************************************************************
**
** Function BTA_AvMetaCmd
**
** Description Send a Metadata/Advanced Control command. The message contained
** in p_pkt can be composed with AVRC utility functions.
** This function can only be used if AV is enabled with feature
** BTA_AV_FEAT_METADATA.
** This message is sent only when the peer supports the TG role.
*8 The only command makes sense right now is the absolute volume command.
**
** Returns void
**
*******************************************************************************/
void BTA_AvMetaCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt)
{
tBTA_AV_API_META_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_META_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL) {
p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->p_pkt = p_pkt;
p_buf->rsp_code = cmd_code;
p_buf->is_rsp = FALSE;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
}
}
#endif /* BTA_AV_INCLUDED */
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