1 /*
2 * Copyright (C) 2019 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 "HalProxyCallback.h"
18
19 #include <cinttypes>
20
21 namespace android {
22 namespace hardware {
23 namespace sensors {
24 namespace V2_0 {
25 namespace implementation {
26
27 static constexpr int32_t kBitsAfterSubHalIndex = 24;
28
29 /**
30 * Set the subhal index as first byte of sensor handle and return this modified version.
31 *
32 * @param sensorHandle The sensor handle to modify.
33 * @param subHalIndex The index in the hal proxy of the sub hal this sensor belongs to.
34 *
35 * @return The modified sensor handle.
36 */
setSubHalIndex(int32_t sensorHandle,size_t subHalIndex)37 int32_t setSubHalIndex(int32_t sensorHandle, size_t subHalIndex) {
38 return sensorHandle | (static_cast<int32_t>(subHalIndex) << kBitsAfterSubHalIndex);
39 }
40
postEvents(const std::vector<V2_1::Event> & events,ScopedWakelock wakelock)41 void HalProxyCallbackBase::postEvents(const std::vector<V2_1::Event>& events,
42 ScopedWakelock wakelock) {
43 if (events.empty() || !mCallback->areThreadsRunning()) return;
44 size_t numWakeupEvents;
45 std::vector<V2_1::Event> processedEvents = processEvents(events, &numWakeupEvents);
46 if (numWakeupEvents > 0) {
47 ALOG_ASSERT(wakelock.isLocked(),
48 "Wakeup events posted while wakelock unlocked for subhal"
49 " w/ index %" PRId32 ".",
50 mSubHalIndex);
51 } else {
52 ALOG_ASSERT(!wakelock.isLocked(),
53 "No Wakeup events posted but wakelock locked for subhal"
54 " w/ index %" PRId32 ".",
55 mSubHalIndex);
56 }
57 mCallback->postEventsToMessageQueue(processedEvents, numWakeupEvents, std::move(wakelock));
58 }
59
createScopedWakelock(bool lock)60 ScopedWakelock HalProxyCallbackBase::createScopedWakelock(bool lock) {
61 ScopedWakelock wakelock(mRefCounter, lock);
62 return wakelock;
63 }
64
processEvents(const std::vector<V2_1::Event> & events,size_t * numWakeupEvents) const65 std::vector<V2_1::Event> HalProxyCallbackBase::processEvents(const std::vector<V2_1::Event>& events,
66 size_t* numWakeupEvents) const {
67 *numWakeupEvents = 0;
68 std::vector<V2_1::Event> eventsOut;
69 for (V2_1::Event event : events) {
70 event.sensorHandle = setSubHalIndex(event.sensorHandle, mSubHalIndex);
71 if (event.sensorType == V2_1::SensorType::DYNAMIC_SENSOR_META) {
72 event.u.dynamic.sensorHandle =
73 setSubHalIndex(event.u.dynamic.sensorHandle, mSubHalIndex);
74 }
75 eventsOut.push_back(event);
76 const V2_1::SensorInfo& sensor = mCallback->getSensorInfo(event.sensorHandle);
77 if ((sensor.flags & V1_0::SensorFlagBits::WAKE_UP) != 0) {
78 (*numWakeupEvents)++;
79 }
80 }
81 return eventsOut;
82 }
83
84 } // namespace implementation
85 } // namespace V2_0
86 } // namespace sensors
87 } // namespace hardware
88 } // namespace android
89