288 lines
8.9 KiB
C
288 lines
8.9 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.c
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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 <assert.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_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 "bt_common.h"
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#include "device/include/interop.h"
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#include "hci_layer.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/hash_functions.h"
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#include "osi/include/hash_map.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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** Static functions
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*******************************************************************************/
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/*******************************************************************************
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** Externs
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*******************************************************************************/
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fixed_queue_t *btu_hci_msg_queue;
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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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{
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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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btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
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if (btu_hci_msg_queue == NULL) {
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LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
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return;
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}
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data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
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hci->set_data_queue(btu_hci_msg_queue);
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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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{
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data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
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hci->set_data_queue(NULL);
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fixed_queue_free(btu_hci_msg_queue, NULL);
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btu_hci_msg_queue = NULL;
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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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{
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APPL_TRACE_DEBUG("%s", __FUNCTION__);
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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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{
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APPL_TRACE_DEBUG("%s", __FUNCTION__);
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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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{
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hci->do_postload();
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}
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#if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
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/******************************************************************************
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**
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** Function bte_main_enable_lpm
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**
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** Description BTE MAIN API - Enable/Disable low power mode operation
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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_lpm(BOOLEAN enable)
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{
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hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
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}
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/******************************************************************************
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**
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** Function bte_main_lpm_allow_bt_device_sleep
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**
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** Description BTE MAIN API - Allow the BT controller to go to sleep
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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_lpm_allow_bt_device_sleep()
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{
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hci->send_low_power_command(LPM_WAKE_DEASSERT);
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}
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/******************************************************************************
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**
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** Function bte_main_lpm_wake_bt_device
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**
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** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
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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_lpm_wake_bt_device()
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{
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hci->send_low_power_command(LPM_WAKE_ASSERT);
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}
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#endif // HCILP_INCLUDED
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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 event)
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{
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UINT16 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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{
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hci->transmit_downward(event, p_msg);
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}
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else
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{
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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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/******************************************************************************
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**
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** Function bte_ssr_cleanup
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**
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** Description sends PWR_OFF to vendor library so that harware would be
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** turned off as part of hardware subsystem crash
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**
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** Returns None
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**
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******************************************************************************/
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void bte_ssr_cleanup(int reason)
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{
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APPL_TRACE_DEBUG("%s", __FUNCTION__);
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if (hci != NULL) {
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hci->ssr_cleanup(reason);
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} else {
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APPL_TRACE_ERROR("%s hci is NULL", __FUNCTION__);
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}
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}
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