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/******************************************************************************
*
* Copyright 1999-2012 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.
*
******************************************************************************/
#define LOG_TAG "bt_btu_task"
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bta/sys/bta_sys.h"
#include "btcore/include/module.h"
#include "bte.h"
#include "btif/include/btif_common.h"
#include "common/message_loop_thread.h"
#include "osi/include/osi.h"
#include "stack/btm/btm_int.h"
#include "stack/include/btu.h"
#include "stack/l2cap/l2c_int.h"
#include <base/bind.h>
#include <base/logging.h>
#include <base/run_loop.h>
#include <base/threading/thread.h>
using bluetooth::common::MessageLoopThread;
/* Define BTU storage area */
uint8_t btu_trace_level = HCI_INITIAL_TRACE_LEVEL;
static MessageLoopThread main_thread("bt_main_thread");
void btu_hci_msg_process(BT_HDR* p_msg) {
/* Determine the input message type. */
switch (p_msg->event & BT_EVT_MASK) {
case BT_EVT_TO_BTU_HCI_ACL:
/* All Acl Data goes to L2CAP */
l2c_rcv_acl_data(p_msg);
break;
case BT_EVT_TO_BTU_L2C_SEG_XMIT:
/* L2CAP segment transmit complete */
l2c_link_segments_xmitted(p_msg);
break;
case BT_EVT_TO_BTU_HCI_SCO:
btm_route_sco_data(p_msg);
break;
case BT_EVT_TO_BTU_HCI_EVT:
btu_hcif_process_event((uint8_t)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
osi_free(p_msg);
break;
case BT_EVT_TO_BTU_HCI_CMD:
btu_hcif_send_cmd((uint8_t)(p_msg->event & BT_SUB_EVT_MASK), p_msg);
break;
case BT_EVT_TO_BTU_HCI_ISO:
// TODO: implement handler
osi_free(p_msg);
break;
default:
osi_free(p_msg);
break;
}
}
bluetooth::common::MessageLoopThread* get_main_thread() { return &main_thread; }
base::MessageLoop* get_main_message_loop() {
return main_thread.message_loop();
}
bt_status_t do_in_main_thread(const base::Location& from_here,
base::OnceClosure task) {
if (!main_thread.DoInThread(from_here, std::move(task))) {
LOG(ERROR) << __func__ << ": failed from " << from_here.ToString();
return BT_STATUS_FAIL;
}
return BT_STATUS_SUCCESS;
}
bt_status_t do_in_main_thread_delayed(const base::Location& from_here,
base::OnceClosure task,
const base::TimeDelta& delay) {
if (!get_main_message_loop()->task_runner()->PostDelayedTask(
from_here, std::move(task), delay)) {
LOG(ERROR) << __func__ << ": failed from " << from_here.ToString();
return BT_STATUS_FAIL;
}
return BT_STATUS_SUCCESS;
}
void btu_task_start_up(UNUSED_ATTR void* context) {
LOG(INFO) << "Bluetooth chip preload is complete";
/* Initialize the mandatory core stack control blocks
(BTU, BTM, L2CAP, and SDP)
*/
btu_init_core();
/* Initialize any optional stack components */
BTE_InitStack();
bta_sys_init();
/* Initialise platform trace levels at this point as BTE_InitStack() and
* bta_sys_init()
* reset the control blocks and preset the trace level with
* XXX_INITIAL_TRACE_LEVEL
*/
module_init(get_module(BTE_LOGMSG_MODULE));
main_thread.StartUp();
if (!main_thread.IsRunning()) {
LOG(FATAL) << __func__ << ": unable to start btu message loop thread.";
}
if (!main_thread.EnableRealTimeScheduling()) {
LOG(FATAL) << __func__ << ": unable to enable real time scheduling";
}
if (do_in_jni_thread(FROM_HERE, base::Bind(btif_init_ok, 0, nullptr)) !=
BT_STATUS_SUCCESS) {
LOG(FATAL) << __func__ << ": unable to continue starting Bluetooth";
}
}
void btu_task_shut_down(UNUSED_ATTR void* context) {
// Shutdown message loop on task completed
main_thread.ShutDown();
module_clean_up(get_module(BTE_LOGMSG_MODULE));
bta_sys_free();
btu_free_core();
}
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