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/******************************************************************************
*
* Copyright 2003-2012 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 main implementation file for the BTA system manager.
*
******************************************************************************/
#define LOG_TAG "bt_bta_sys_main"
#include <base/bind.h>
#include <base/logging.h>
#include <cstring>
#include "bt_target.h" // Must be first to define build configuration
#include "bta/sys/bta_sys.h"
#include "bta/sys/bta_sys_int.h"
#include "include/hardware/bluetooth.h"
#include "osi/include/alarm.h"
#include "osi/include/allocator.h"
#include "osi/include/log.h"
#include "stack/include/bt_hdr.h"
#include "stack/include/bt_types.h"
#include "stack/include/btu.h" // do_in_main_thread
void BTIF_dm_on_hw_error();
/* system manager control block definition */
tBTA_SYS_CB bta_sys_cb;
/* trace level */
/* TODO Hard-coded trace levels - Needs to be configurable */
uint8_t appl_trace_level = APPL_INITIAL_TRACE_LEVEL;
uint8_t btif_trace_level = BT_TRACE_LEVEL_WARNING;
/*******************************************************************************
*
* Function bta_sys_init
*
* Description BTA initialization; called from task initialization.
*
*
* Returns void
*
******************************************************************************/
void bta_sys_init(void) {
memset(&bta_sys_cb, 0, sizeof(tBTA_SYS_CB));
}
void bta_set_forward_hw_failures(bool value) {
bta_sys_cb.forward_hw_failures = value;
}
void BTA_sys_signal_hw_error() {
if (bta_sys_cb.forward_hw_failures) {
BTIF_dm_on_hw_error();
}
}
/*******************************************************************************
*
* Function bta_sys_event
*
* Description BTA event handler; called from task event handler.
*
*
* Returns void
*
******************************************************************************/
static void bta_sys_event(BT_HDR_RIGID* p_msg) {
uint8_t id;
bool freebuf = true;
APPL_TRACE_EVENT("%s: Event 0x%x", __func__, p_msg->event);
/* get subsystem id from event */
id = (uint8_t)(p_msg->event >> 8);
/* verify id and call subsystem event handler */
if ((id < BTA_ID_MAX) && (bta_sys_cb.reg[id] != NULL)) {
freebuf = (*bta_sys_cb.reg[id]->evt_hdlr)(p_msg);
} else {
LOG_INFO("Ignoring receipt of unregistered event id:%s",
BtaIdSysText(id).c_str());
}
if (freebuf) {
osi_free(p_msg);
}
}
/*******************************************************************************
*
* Function bta_sys_register
*
* Description Called by other BTA subsystems to register their event
* handler.
*
*
* Returns void
*
******************************************************************************/
void bta_sys_register(uint8_t id, const tBTA_SYS_REG* p_reg) {
bta_sys_cb.reg[id] = (tBTA_SYS_REG*)p_reg;
bta_sys_cb.is_reg[id] = true;
}
/*******************************************************************************
*
* Function bta_sys_deregister
*
* Description Called by other BTA subsystems to de-register
* handler.
*
*
* Returns void
*
******************************************************************************/
void bta_sys_deregister(uint8_t id) { bta_sys_cb.is_reg[id] = false; }
/*******************************************************************************
*
* Function bta_sys_is_register
*
* Description Called by other BTA subsystems to get registeration
* status.
*
*
* Returns void
*
******************************************************************************/
bool bta_sys_is_register(uint8_t id) { return bta_sys_cb.is_reg[id]; }
/*******************************************************************************
*
* Function bta_sys_sendmsg
*
* Description Send a GKI message to BTA. This function is designed to
* optimize sending of messages to BTA. It is called by BTA
* API functions and call-in functions.
*
* TODO (apanicke): Add location object as parameter for easier
* future debugging when doing alarm refactor
*
*
* Returns void
*
******************************************************************************/
void bta_sys_sendmsg(void* p_msg) {
if (do_in_main_thread(
FROM_HERE,
base::Bind(&bta_sys_event, static_cast<BT_HDR_RIGID*>(p_msg))) !=
BT_STATUS_SUCCESS) {
LOG(ERROR) << __func__ << ": do_in_main_thread failed";
}
}
void bta_sys_sendmsg_delayed(void* p_msg, const base::TimeDelta& delay) {
if (do_in_main_thread_delayed(
FROM_HERE,
base::Bind(&bta_sys_event, static_cast<BT_HDR_RIGID*>(p_msg)),
delay) != BT_STATUS_SUCCESS) {
LOG(ERROR) << __func__ << ": do_in_main_thread_delayed failed";
}
}
/*******************************************************************************
*
* Function bta_sys_start_timer
*
* Description Start a protocol timer for the specified amount
* of time in milliseconds.
*
* Returns void
*
******************************************************************************/
void bta_sys_start_timer(alarm_t* alarm, uint64_t interval_ms, uint16_t event,
uint16_t layer_specific) {
BT_HDR_RIGID* p_buf = (BT_HDR_RIGID*)osi_malloc(sizeof(BT_HDR_RIGID));
p_buf->event = event;
p_buf->layer_specific = layer_specific;
alarm_set_on_mloop(alarm, interval_ms, bta_sys_sendmsg, p_buf);
}
/*******************************************************************************
*
* Function bta_sys_disable
*
* Description For each registered subsystem execute its disable function.
*
* Returns void
*
******************************************************************************/
void bta_sys_disable() {
int bta_id = BTA_ID_DM_SEARCH;
int bta_id_max = BTA_ID_BLUETOOTH_MAX;
for (; bta_id <= bta_id_max; bta_id++) {
if (bta_sys_cb.reg[bta_id] != NULL) {
if (bta_sys_cb.is_reg[bta_id] &&
bta_sys_cb.reg[bta_id]->disable != NULL) {
(*bta_sys_cb.reg[bta_id]->disable)();
}
}
}
}
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