1/*
2 * Copyright (C) 2018 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#define DEBUG false  // STOPSHIP if true
18#include "Log.h"
19
20#include <android/hardware/health/2.0/IHealth.h>
21#include <healthhalutils/HealthHalUtils.h>
22#include "external/ResourceHealthManagerPuller.h"
23#include "external/StatsPuller.h"
24
25#include "ResourceHealthManagerPuller.h"
26#include "logd/LogEvent.h"
27#include "statslog.h"
28#include "stats_log_util.h"
29
30using android::hardware::hidl_vec;
31using android::hardware::health::V2_0::get_health_service;
32using android::hardware::health::V2_0::HealthInfo;
33using android::hardware::health::V2_0::IHealth;
34using android::hardware::health::V2_0::Result;
35using android::hardware::Return;
36using android::hardware::Void;
37
38using std::make_shared;
39using std::shared_ptr;
40
41namespace android {
42namespace os {
43namespace statsd {
44
45sp<android::hardware::health::V2_0::IHealth> gHealthHal = nullptr;
46
47bool getHealthHal() {
48    if (gHealthHal == nullptr) {
49        gHealthHal = get_health_service();
50    }
51    return gHealthHal != nullptr;
52}
53
54ResourceHealthManagerPuller::ResourceHealthManagerPuller(int tagId) : StatsPuller(tagId) {
55}
56
57// TODO: add other health atoms (eg. Temperature).
58bool ResourceHealthManagerPuller::PullInternal(vector<shared_ptr<LogEvent>>* data) {
59    if (!getHealthHal()) {
60        ALOGE("Health Hal not loaded");
61        return false;
62    }
63
64    int64_t wallClockTimestampNs = getWallClockNs();
65    int64_t elapsedTimestampNs = getElapsedRealtimeNs();
66
67    data->clear();
68    bool result_success = true;
69
70    Return<void> ret = gHealthHal->getHealthInfo([&](Result r, HealthInfo v) {
71        if (r != Result::SUCCESS) {
72            result_success = false;
73            return;
74        }
75        if (mTagId == android::util::REMAINING_BATTERY_CAPACITY) {
76            auto ptr = make_shared<LogEvent>(android::util::REMAINING_BATTERY_CAPACITY,
77                wallClockTimestampNs, elapsedTimestampNs);
78            ptr->write(v.legacy.batteryChargeCounter);
79            ptr->init();
80            data->push_back(ptr);
81        } else if (mTagId == android::util::FULL_BATTERY_CAPACITY) {
82            auto ptr = make_shared<LogEvent>(android::util::FULL_BATTERY_CAPACITY,
83                wallClockTimestampNs, elapsedTimestampNs);
84            ptr->write(v.legacy.batteryFullCharge);
85            ptr->init();
86            data->push_back(ptr);
87        } else {
88            ALOGE("Unsupported tag in ResourceHealthManagerPuller: %d", mTagId);
89        }
90    });
91    if (!result_success || !ret.isOk()) {
92        ALOGE("getHealthHal() failed: health HAL service not available. Description: %s",
93                ret.description().c_str());
94        if (!ret.isOk() && ret.isDeadObject()) {
95            gHealthHal = nullptr;
96        }
97        return false;
98    }
99    return true;
100}
101
102}  // namespace statsd
103}  // namespace os
104}  // namespace android
105