226 lines
7.3 KiB
C++
226 lines
7.3 KiB
C++
/******************************************************************************
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*
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* Copyright (C) 2009-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* Filename: bte_main.cc
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*
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* Description: Contains BTE core stack initialization and shutdown code
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*
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******************************************************************************/
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#define LOG_TAG "bt_main"
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#include <base/logging.h>
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#include <base/threading/thread.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <time.h>
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#include <hardware/bluetooth.h>
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#include "bt_common.h"
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#include "bt_hci_bdroid.h"
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#include "bt_utils.h"
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#include "bta_api.h"
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#include "btcore/include/module.h"
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#include "bte.h"
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#include "btif_common.h"
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#include "btsnoop.h"
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#include "btu.h"
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#include "device/include/interop.h"
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#include "hci_layer.h"
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#include "hcimsgs.h"
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#include "osi/include/alarm.h"
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#include "osi/include/fixed_queue.h"
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#include "osi/include/future.h"
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#include "osi/include/log.h"
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#include "osi/include/osi.h"
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#include "osi/include/thread.h"
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#include "stack_config.h"
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/*******************************************************************************
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* Constants & Macros
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******************************************************************************/
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/* Run-time configuration file for BLE*/
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#ifndef BTE_BLE_STACK_CONF_FILE
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// TODO(armansito): Find a better way than searching by a hardcoded path.
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#if defined(OS_GENERIC)
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#define BTE_BLE_STACK_CONF_FILE "ble_stack.conf"
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#else // !defined(OS_GENERIC)
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#define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf"
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#endif // defined(OS_GENERIC)
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#endif // BT_BLE_STACK_CONF_FILE
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/******************************************************************************
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* Variables
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*****************************************************************************/
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/*******************************************************************************
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* Static variables
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******************************************************************************/
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static const hci_t* hci;
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/*******************************************************************************
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* Externs
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******************************************************************************/
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extern void btu_hci_msg_process(BT_HDR* p_msg);
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/*******************************************************************************
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* Static functions
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******************************************************************************/
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/******************************************************************************
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*
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* Function post_to_hci_message_loop
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*
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* Description Post an HCI event to the hci message queue
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*
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* Returns None
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*
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*****************************************************************************/
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void post_to_hci_message_loop(const tracked_objects::Location& from_here,
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BT_HDR* p_msg) {
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base::MessageLoop* hci_message_loop = get_message_loop();
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if (!hci_message_loop || !hci_message_loop->task_runner().get()) {
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LOG_ERROR(LOG_TAG, "%s: HCI message loop not running, accessed from %s",
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__func__, from_here.ToString().c_str());
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return;
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}
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hci_message_loop->task_runner()->PostTask(
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from_here, base::Bind(&btu_hci_msg_process, p_msg));
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}
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/******************************************************************************
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*
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* Function bte_main_boot_entry
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*
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* Description BTE MAIN API - Entry point for BTE chip/stack initialization
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_boot_entry(void) {
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module_init(get_module(INTEROP_MODULE));
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hci = hci_layer_get_interface();
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if (!hci) {
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LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
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return;
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}
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hci->set_data_cb(base::Bind(&post_to_hci_message_loop));
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module_init(get_module(STACK_CONFIG_MODULE));
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}
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/******************************************************************************
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*
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* Function bte_main_cleanup
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*
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* Description BTE MAIN API - Cleanup code for BTE chip/stack
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_cleanup() {
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module_clean_up(get_module(STACK_CONFIG_MODULE));
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module_clean_up(get_module(INTEROP_MODULE));
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}
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/******************************************************************************
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*
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* Function bte_main_enable
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*
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* Description BTE MAIN API - Creates all the BTE tasks. Should be called
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* part of the Bluetooth stack enable sequence
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_enable() {
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APPL_TRACE_DEBUG("%s", __func__);
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module_start_up(get_module(BTSNOOP_MODULE));
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module_start_up(get_module(HCI_MODULE));
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BTU_StartUp();
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}
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/******************************************************************************
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*
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* Function bte_main_disable
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*
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* Description BTE MAIN API - Destroys all the BTE tasks. Should be called
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* part of the Bluetooth stack disable sequence
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_disable(void) {
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APPL_TRACE_DEBUG("%s", __func__);
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module_shut_down(get_module(HCI_MODULE));
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module_shut_down(get_module(BTSNOOP_MODULE));
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BTU_ShutDown();
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}
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/******************************************************************************
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*
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* Function bte_main_postload_cfg
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*
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* Description BTE MAIN API - Stack postload configuration
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_postload_cfg(void) {
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// TODO(eisenbach): [HIDL] DEPRECATE?
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}
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/******************************************************************************
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*
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* Function bte_main_hci_send
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*
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* Description BTE MAIN API - This function is called by the upper stack to
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* send an HCI message. The function displays a protocol trace
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* message (if enabled), and then calls the 'transmit' function
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* associated with the currently selected HCI transport
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*
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* Returns None
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*
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*****************************************************************************/
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void bte_main_hci_send(BT_HDR* p_msg, uint16_t event) {
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uint16_t sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
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p_msg->event = event;
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if ((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) ||
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(sub_event == LOCAL_BLE_CONTROLLER_ID)) {
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hci->transmit_downward(event, p_msg);
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} else {
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APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");
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osi_free(p_msg);
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}
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}
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