1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "chre/platform/system_timer.h"
18
19 #include "chre/platform/log.h"
20
21 namespace chre {
22
SystemTimer()23 SystemTimer::SystemTimer() {}
24
~SystemTimer()25 SystemTimer::~SystemTimer() {
26 timer_undef(&mTimerHandle);
27 }
28
init()29 bool SystemTimer::init() {
30 if (mInitialized) {
31 LOGW("Tried re-initializing timer");
32 } else {
33 timer_error_type status = timer_def_osal(
34 &mTimerHandle, &timer_non_defer_group, TIMER_FUNC1_CB_TYPE,
35 reinterpret_cast<time_osal_notify_obj_ptr>(systemTimerNotifyCallback),
36 reinterpret_cast<time_osal_notify_data>(this));
37 if (status != TE_SUCCESS) {
38 LOGE("Error initializing timer %d", status);
39 } else {
40 mInitialized = true;
41 }
42 }
43
44 return mInitialized;
45 }
46
set(SystemTimerCallback * callback,void * data,Nanoseconds delay)47 bool SystemTimer::set(SystemTimerCallback *callback, void *data,
48 Nanoseconds delay) {
49 bool wasSet = false;
50 if (mInitialized) {
51 mCallback = callback;
52 mData = data;
53 timer_error_type status = timer_set_64(&mTimerHandle,
54 Microseconds(delay).getMicroseconds(), 0, T_USEC);
55 if (status != TE_SUCCESS) {
56 LOGE("Error setting timer %d", status);
57 } else {
58 wasSet = true;
59 }
60 }
61
62 return wasSet;
63 }
64
cancel()65 bool SystemTimer::cancel() {
66 bool wasCancelled = false;
67 if (mInitialized) {
68 time_timetick_type ticksRemaining = timer_clr_64(&mTimerHandle, T_TICK);
69 wasCancelled = (ticksRemaining > 0);
70 }
71
72 return wasCancelled;
73 }
74
isActive()75 bool SystemTimer::isActive() {
76 return (mInitialized && timer_get_64(&mTimerHandle, T_TICK) > 0);
77 }
78
systemTimerNotifyCallback(timer_cb_data_type data)79 void SystemTimerBase::systemTimerNotifyCallback(timer_cb_data_type data) {
80 SystemTimer *systemTimer = reinterpret_cast<SystemTimer *>(data);
81 systemTimer->mCallback(systemTimer->mData);
82 }
83
84 } // namespace chre
85