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 #define LOG_TAG "android.hardware.health@2.0-service.crosshatch"
17 #include <android-base/logging.h>
18
19 #include <android-base/file.h>
20 #include <android-base/parseint.h>
21 #include <android-base/strings.h>
22 #include <health2/Health.h>
23 #include <health2/service.h>
24 #include <healthd/healthd.h>
25 #include <hidl/HidlTransportSupport.h>
26 #include <pixelhealth/BatteryMetricsLogger.h>
27 #include <pixelhealth/CycleCountBackupRestore.h>
28 #include <pixelhealth/DeviceHealth.h>
29 #include <pixelhealth/LowBatteryShutdownMetrics.h>
30
31 #include <fstream>
32 #include <iomanip>
33 #include <string>
34 #include <vector>
35
36 #include "BatteryRechargingControl.h"
37
38 namespace {
39
40 using android::hardware::health::V2_0::DiskStats;
41 using android::hardware::health::V2_0::StorageAttribute;
42 using android::hardware::health::V2_0::StorageInfo;
43 using hardware::google::pixel::health::BatteryMetricsLogger;
44 using hardware::google::pixel::health::CycleCountBackupRestore;
45 using hardware::google::pixel::health::DeviceHealth;
46 using hardware::google::pixel::health::LowBatteryShutdownMetrics;
47 using ::device::google::crosshatch::health::BatteryRechargingControl;
48
49 constexpr char kBatteryResistance[] = "/sys/class/power_supply/maxfg/resistance";
50 constexpr char kBatteryOCV[] = "/sys/class/power_supply/maxfg/voltage_ocv";
51 constexpr char kVoltageAvg[] = "/sys/class/power_supply/maxfg/voltage_avg";
52
53 static BatteryRechargingControl battRechargingControl;
54 static BatteryMetricsLogger battMetricsLogger(kBatteryResistance, kBatteryOCV);
55 static LowBatteryShutdownMetrics shutdownMetrics(kVoltageAvg);
56 static CycleCountBackupRestore ccBackupRestoreBMS(
57 8, "/sys/class/power_supply/bms/device/cycle_counts_bins",
58 "/persist/battery/qcom_cycle_counts_bins");
59 static CycleCountBackupRestore ccBackupRestoreMAX(
60 10, "/sys/class/power_supply/maxfg/cycle_counts_bins",
61 "/persist/battery/max_cycle_counts_bins", "/sys/class/power_supply/maxfg/serial_number");
62 static DeviceHealth deviceHealth;
63
64 #define UFS_DIR "/sys/devices/platform/soc/1d84000.ufshc"
65 const std::string kUfsHealthEol{UFS_DIR "/health/eol"};
66 const std::string kUfsHealthLifetimeA{UFS_DIR "/health/lifetimeA"};
67 const std::string kUfsHealthLifetimeB{UFS_DIR "/health/lifetimeB"};
68 const std::string kUfsVersion{UFS_DIR "/version"};
69 const std::string kDiskStatsFile{"/sys/block/sda/stat"};
70 const std::string kUFSName{"UFS0"};
71
assert_open(const std::string & path)72 std::ifstream assert_open(const std::string &path) {
73 std::ifstream stream(path);
74 if (!stream.is_open()) {
75 LOG(FATAL) << "Cannot read " << path;
76 }
77 return stream;
78 }
79
80 template <typename T>
read_value_from_file(const std::string & path,T * field)81 void read_value_from_file(const std::string &path, T *field) {
82 auto stream = assert_open(path);
83 stream.unsetf(std::ios_base::basefield);
84 stream >> *field;
85 }
86
read_ufs_version(StorageInfo * info)87 void read_ufs_version(StorageInfo *info) {
88 uint64_t value;
89 read_value_from_file(kUfsVersion, &value);
90 std::stringstream ss;
91 ss << "ufs " << std::hex << value;
92 info->version = ss.str();
93 }
94
fill_ufs_storage_attribute(StorageAttribute * attr)95 void fill_ufs_storage_attribute(StorageAttribute *attr) {
96 attr->isInternal = true;
97 attr->isBootDevice = true;
98 attr->name = kUFSName;
99 }
100
101 } // anonymous namespace
102
healthd_board_init(struct healthd_config * config)103 void healthd_board_init(struct healthd_config *config) {
104 using ::device::google::crosshatch::health::kChargerStatus;
105
106 ccBackupRestoreBMS.Restore();
107 ccBackupRestoreMAX.Restore();
108
109 config->batteryStatusPath = kChargerStatus.c_str();
110 }
111
healthd_board_battery_update(struct android::BatteryProperties * props)112 int healthd_board_battery_update(struct android::BatteryProperties *props) {
113 battRechargingControl.updateBatteryProperties(props);
114 deviceHealth.update(props);
115 battMetricsLogger.logBatteryProperties(props);
116 shutdownMetrics.logShutdownVoltage(props);
117 ccBackupRestoreBMS.Backup(props->batteryLevel);
118 ccBackupRestoreMAX.Backup(props->batteryLevel);
119 if (!android::base::WriteStringToFile(std::to_string(props->batteryLevel),
120 "/sys/class/power_supply/wireless/capacity"))
121 LOG(INFO) << "Unable to write battery level to wireless capacity";
122 return 0;
123 }
124
get_storage_info(std::vector<StorageInfo> & vec_storage_info)125 void get_storage_info(std::vector<StorageInfo> &vec_storage_info) {
126 vec_storage_info.resize(1);
127 StorageInfo *storage_info = &vec_storage_info[0];
128 fill_ufs_storage_attribute(&storage_info->attr);
129
130 read_ufs_version(storage_info);
131 read_value_from_file(kUfsHealthEol, &storage_info->eol);
132 read_value_from_file(kUfsHealthLifetimeA, &storage_info->lifetimeA);
133 read_value_from_file(kUfsHealthLifetimeB, &storage_info->lifetimeB);
134 return;
135 }
136
get_disk_stats(std::vector<DiskStats> & vec_stats)137 void get_disk_stats(std::vector<DiskStats> &vec_stats) {
138 vec_stats.resize(1);
139 DiskStats *stats = &vec_stats[0];
140 fill_ufs_storage_attribute(&stats->attr);
141
142 auto stream = assert_open(kDiskStatsFile);
143 // Regular diskstats entries
144 stream >> stats->reads >> stats->readMerges >> stats->readSectors >> stats->readTicks >>
145 stats->writes >> stats->writeMerges >> stats->writeSectors >> stats->writeTicks >>
146 stats->ioInFlight >> stats->ioTicks >> stats->ioInQueue;
147 return;
148 }
149
main(void)150 int main(void) {
151 return health_service_main();
152 }
153