/******************************************************************************
*
* Copyright 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.
*
******************************************************************************/
#define LOG_TAG "bt_bta_av"
#include <base/logging.h>
#include "bt_target.h"
#include <string.h>
#include "bt_common.h"
#include "bta_api.h"
#include "bta_av_api.h"
#include "bta_av_int.h"
#include "bta_sys.h"
#include "osi/include/allocator.h"
#include "osi/include/log.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 =
(tBTA_AV_API_ENABLE*)osi_malloc(sizeof(tBTA_AV_API_ENABLE));
/* register with BTA system manager */
bta_sys_register(BTA_ID_AV, &bta_av_reg);
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 = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
bta_sys_deregister(BTA_ID_AV);
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_t app_id, tBTA_AV_SINK_DATA_CBACK* p_sink_data_cback,
uint16_t service_uuid) {
tBTA_AV_API_REG* p_buf =
(tBTA_AV_API_REG*)osi_malloc(sizeof(tBTA_AV_API_REG));
p_buf->hdr.layer_specific = chnl;
p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
if (p_service_name)
strlcpy(p_buf->p_service_name, p_service_name, BTA_SERVICE_NAME_LEN);
else
p_buf->p_service_name[0] = 0;
p_buf->app_id = app_id;
p_buf->p_app_sink_data_cback = p_sink_data_cback;
p_buf->service_uuid = service_uuid;
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 = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
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(const RawAddress& bd_addr, tBTA_AV_HNDL handle, bool use_rc,
tBTA_SEC sec_mask, uint16_t uuid) {
LOG_INFO(LOG_TAG, "%s: peer %s handle:0x%x use_rc=%s sec_mask=0x%x uuid=0x%x",
__func__, bd_addr.ToString().c_str(), handle,
(use_rc) ? "true" : "false", sec_mask, uuid);
tBTA_AV_API_OPEN* p_buf =
(tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN));
p_buf->hdr.event = BTA_AV_API_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
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) {
LOG_INFO(LOG_TAG, "%s: handle:0x%x", __func__, handle);
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
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(const RawAddress& bd_addr) {
LOG_INFO(LOG_TAG, "%s: peer %s", __func__, bd_addr.ToString().c_str());
tBTA_AV_API_DISCNT* p_buf =
(tBTA_AV_API_DISCNT*)osi_malloc(sizeof(tBTA_AV_API_DISCNT));
p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT;
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(tBTA_AV_HNDL handle) {
LOG_INFO(LOG_TAG, "%s: handle=%d", __func__, handle);
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AV_API_START_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AvOffloadStart
*
* Description Start a2dp audio offloading.
*
* Returns void
*
******************************************************************************/
void BTA_AvOffloadStart(tBTA_AV_HNDL hndl) {
LOG_INFO(LOG_TAG, "%s: handle=%d", __func__, hndl);
BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
p_buf->event = BTA_AV_API_OFFLOAD_START_EVT;
p_buf->layer_specific = hndl;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* Function BTA_AvOffloadStartRsp
*
* Description Response from vendor lib for A2DP Offload Start request.
*
* Returns void
*
******************************************************************************/
void BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl, tBTA_AV_STATUS status) {
tBTA_AV_API_STATUS_RSP* p_buf =
(tBTA_AV_API_STATUS_RSP*)osi_malloc(sizeof(tBTA_AV_API_STATUS_RSP));
p_buf->hdr.event = BTA_AV_API_OFFLOAD_START_RSP_EVT;
p_buf->hdr.layer_specific = hndl;
p_buf->status = status;
bta_sys_sendmsg(p_buf);
}
/*******************************************************************************
*
* 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(tBTA_AV_HNDL handle, bool suspend) {
LOG_INFO(LOG_TAG, "%s: handle=%d suspend=%s", __func__, handle,
logbool(suspend).c_str());
tBTA_AV_API_STOP* p_buf =
(tBTA_AV_API_STOP*)osi_malloc(sizeof(tBTA_AV_API_STOP));
p_buf->hdr.event = BTA_AV_API_STOP_EVT;
p_buf->hdr.layer_specific = handle;
p_buf->flush = true;
p_buf->suspend = suspend;
p_buf->reconfig_stop = false;
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, bool suspend, uint8_t sep_info_idx,
uint8_t* p_codec_info, uint8_t num_protect,
const uint8_t* p_protect_info) {
LOG_INFO(LOG_TAG, "%s: handle=%d suspend=%s sep_info_idx=%d", __func__, hndl,
logbool(suspend).c_str(), sep_info_idx);
tBTA_AV_API_RCFG* p_buf =
(tBTA_AV_API_RCFG*)osi_malloc(sizeof(tBTA_AV_API_RCFG) + num_protect);
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_t*)(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_t* p_data, uint16_t len) {
tBTA_AV_API_PROTECT_REQ* p_buf = (tBTA_AV_API_PROTECT_REQ*)osi_malloc(
sizeof(tBTA_AV_API_PROTECT_REQ) + len);
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_t*)(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_t error_code, uint8_t* p_data,
uint16_t len) {
tBTA_AV_API_PROTECT_RSP* p_buf = (tBTA_AV_API_PROTECT_RSP*)osi_malloc(
sizeof(tBTA_AV_API_PROTECT_RSP) + len);
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_t*)(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_t rc_handle, uint8_t label, tBTA_AV_RC rc_id,
tBTA_AV_STATE key_state) {
tBTA_AV_API_REMOTE_CMD* p_buf =
(tBTA_AV_API_REMOTE_CMD*)osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD));
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_AvRemoteVendorUniqueCmd
*
* Description Send a remote control command with Vendor Unique rc_id.
* This function can only be used if AV is enabled with
* feature BTA_AV_FEAT_RCCT.
*
* Returns void
*
******************************************************************************/
void BTA_AvRemoteVendorUniqueCmd(uint8_t rc_handle, uint8_t label,
tBTA_AV_STATE key_state, uint8_t* p_msg,
uint8_t buf_len) {
tBTA_AV_API_REMOTE_CMD* p_buf = (tBTA_AV_API_REMOTE_CMD*)osi_malloc(
sizeof(tBTA_AV_API_REMOTE_CMD) + buf_len);
p_buf->label = label;
p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.op_id = AVRC_ID_VENDOR;
p_buf->msg.state = key_state;
p_buf->msg.pass_len = buf_len;
if (p_msg == NULL) {
p_buf->msg.p_pass_data = NULL;
} else {
p_buf->msg.p_pass_data = (uint8_t*)(p_buf + 1);
memcpy(p_buf->msg.p_pass_data, p_msg, buf_len);
}
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_t rc_handle, uint8_t label, tBTA_AV_CODE cmd_code,
uint8_t* p_data, uint16_t len) {
tBTA_AV_API_VENDOR* p_buf =
(tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
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_t*)(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_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code,
uint8_t* p_data, uint16_t len, uint32_t company_id) {
tBTA_AV_API_VENDOR* p_buf =
(tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len);
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_t*)(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 =
(tBTA_AV_API_OPEN_RC*)osi_malloc(sizeof(tBTA_AV_API_OPEN_RC));
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_t rc_handle) {
tBTA_AV_API_CLOSE_RC* p_buf =
(tBTA_AV_API_CLOSE_RC*)osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC));
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_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code,
BT_HDR* p_pkt) {
tBTA_AV_API_META_RSP* p_buf =
(tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
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);
}
/*******************************************************************************
*
* 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_t rc_handle, uint8_t label, tBTA_AV_CMD cmd_code,
BT_HDR* p_pkt) {
tBTA_AV_API_META_RSP* p_buf =
(tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP));
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);
}