blob: 9f521d9b99a89c3e76a86b01fc54f3081143511a [file] [log] [blame]
/******************************************************************************
*
* Copyright (C) 2009-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* Filename: bte_main.c
*
* Description: Contains BTE core stack initialization and shutdown code
*
******************************************************************************/
#define LOG_TAG "bt_main"
#include <assert.h>
#include <fcntl.h>
#include <pthread.h>
#include <signal.h>
#include <stdlib.h>
#include <time.h>
#include <hardware/bluetooth.h>
#include "bt_hci_bdroid.h"
#include "bt_utils.h"
#include "bta_api.h"
#include "btcore/include/module.h"
#include "bte.h"
#include "btif_common.h"
#include "btsnoop.h"
#include "btu.h"
#include "bt_common.h"
#include "device/include/interop.h"
#include "hci_layer.h"
#include "osi/include/alarm.h"
#include "osi/include/fixed_queue.h"
#include "osi/include/future.h"
#include "osi/include/log.h"
#include "osi/include/osi.h"
#include "osi/include/thread.h"
#include "stack_config.h"
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************************************
** Constants & Macros
*******************************************************************************/
/* Run-time configuration file for BLE*/
#ifndef BTE_BLE_STACK_CONF_FILE
// TODO(armansito): Find a better way than searching by a hardcoded path.
#if defined(OS_GENERIC)
#define BTE_BLE_STACK_CONF_FILE "ble_stack.conf"
#else // !defined(OS_GENERIC)
#define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf"
#endif // defined(OS_GENERIC)
#endif // BT_BLE_STACK_CONF_FILE
/******************************************************************************
** Variables
******************************************************************************/
/*******************************************************************************
** Static variables
*******************************************************************************/
static const hci_t *hci;
/*******************************************************************************
** Static functions
*******************************************************************************/
/*******************************************************************************
** Externs
*******************************************************************************/
fixed_queue_t *btu_hci_msg_queue;
/******************************************************************************
**
** Function bte_main_boot_entry
**
** Description BTE MAIN API - Entry point for BTE chip/stack initialization
**
** Returns None
**
******************************************************************************/
void bte_main_boot_entry(void)
{
module_init(get_module(INTEROP_MODULE));
hci = hci_layer_get_interface();
if (!hci)
LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
if (btu_hci_msg_queue == NULL) {
LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
return;
}
data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
hci->set_data_queue(btu_hci_msg_queue);
module_init(get_module(STACK_CONFIG_MODULE));
}
/******************************************************************************
**
** Function bte_main_cleanup
**
** Description BTE MAIN API - Cleanup code for BTE chip/stack
**
** Returns None
**
******************************************************************************/
void bte_main_cleanup()
{
data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
hci->set_data_queue(NULL);
fixed_queue_free(btu_hci_msg_queue, NULL);
btu_hci_msg_queue = NULL;
module_clean_up(get_module(STACK_CONFIG_MODULE));
module_clean_up(get_module(INTEROP_MODULE));
}
/******************************************************************************
**
** Function bte_main_enable
**
** Description BTE MAIN API - Creates all the BTE tasks. Should be called
** part of the Bluetooth stack enable sequence
**
** Returns None
**
******************************************************************************/
void bte_main_enable()
{
APPL_TRACE_DEBUG("%s", __func__);
module_start_up(get_module(BTSNOOP_MODULE));
module_start_up(get_module(HCI_MODULE));
BTU_StartUp();
}
/******************************************************************************
**
** Function bte_main_disable
**
** Description BTE MAIN API - Destroys all the BTE tasks. Should be called
** part of the Bluetooth stack disable sequence
**
** Returns None
**
******************************************************************************/
void bte_main_disable(void)
{
APPL_TRACE_DEBUG("%s", __func__);
module_shut_down(get_module(HCI_MODULE));
module_shut_down(get_module(BTSNOOP_MODULE));
BTU_ShutDown();
}
/******************************************************************************
**
** Function bte_main_postload_cfg
**
** Description BTE MAIN API - Stack postload configuration
**
** Returns None
**
******************************************************************************/
void bte_main_postload_cfg(void)
{
hci->do_postload();
}
#if (HCILP_INCLUDED == TRUE)
/******************************************************************************
**
** Function bte_main_enable_lpm
**
** Description BTE MAIN API - Enable/Disable low power mode operation
**
** Returns None
**
******************************************************************************/
void bte_main_enable_lpm(bool enable)
{
hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
}
/******************************************************************************
**
** Function bte_main_lpm_allow_bt_device_sleep
**
** Description BTE MAIN API - Allow the BT controller to go to sleep
**
** Returns None
**
******************************************************************************/
void bte_main_lpm_allow_bt_device_sleep()
{
hci->send_low_power_command(LPM_WAKE_DEASSERT);
}
/******************************************************************************
**
** Function bte_main_lpm_wake_bt_device
**
** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
**
** Returns None
**
******************************************************************************/
void bte_main_lpm_wake_bt_device()
{
hci->send_low_power_command(LPM_WAKE_ASSERT);
}
#endif // HCILP_INCLUDED
/******************************************************************************
**
** Function bte_main_hci_send
**
** Description BTE MAIN API - This function is called by the upper stack to
** send an HCI message. The function displays a protocol trace
** message (if enabled), and then calls the 'transmit' function
** associated with the currently selected HCI transport
**
** Returns None
**
******************************************************************************/
void bte_main_hci_send (BT_HDR *p_msg, uint16_t event)
{
uint16_t sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
p_msg->event = event;
if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
(sub_event == LOCAL_BLE_CONTROLLER_ID))
{
hci->transmit_downward(event, p_msg);
}
else
{
APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");
osi_free(p_msg);
}
}
#ifdef __cplusplus
}
#endif