1 /*
2 * Copyright (C) 2022 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 LOG_TAG "battery-mitigation"
18
19 #include <battery_mitigation/BatteryMitigation.h>
20 #include <android/binder_process.h>
21
22 #define COUNT_LIMIT 10
23
24 using android::hardware::google::pixel::BatteryMitigation;
25 using android::hardware::google::pixel::MitigationConfig;
26
27 android::sp<BatteryMitigation> bmSp;
28
29 const struct MitigationConfig::Config cfg = {
30 .SystemPath = {
31 "/dev/thermal/tz-by-name/batoilo/temp",
32 "/dev/thermal/tz-by-name/smpl_gm/temp",
33 "/dev/thermal/tz-by-name/soc/temp",
34 "/dev/thermal/tz-by-name/vdroop1/temp",
35 "/dev/thermal/tz-by-name/vdroop2/temp",
36 "/dev/thermal/tz-by-name/ocp_gpu/temp",
37 "/dev/thermal/tz-by-name/ocp_tpu/temp",
38 "/dev/thermal/tz-by-name/soft_ocp_cpu2/temp",
39 "/dev/thermal/tz-by-name/soft_ocp_cpu1/temp",
40 "/dev/thermal/tz-by-name/battery/temp",
41 "/dev/thermal/tz-by-name/battery_cycle/temp",
42 "/sys/bus/iio/devices/iio:device0/lpf_power",
43 "/sys/bus/iio/devices/iio:device1/lpf_power",
44 "/dev/thermal/cdev-by-name/thermal-cpufreq-2/cur_state",
45 "/dev/thermal/cdev-by-name/thermal-cpufreq-1/cur_state",
46 "/dev/thermal/cdev-by-name/thermal-gpufreq-0/cur_state",
47 "/dev/thermal/cdev-by-name/tpu_cooling/cur_state",
48 "/dev/thermal/cdev-by-name/CAM/cur_state",
49 "/dev/thermal/cdev-by-name/DISP/cur_state",
50 "/dev/thermal/cdev-by-name/gxp-cooling/cur_state",
51 "/sys/class/power_supply/battery/voltage_now",
52 "/sys/class/power_supply/battery/current_now",
53 },
54 .FilteredZones = {
55 "batoilo",
56 "vdroop1",
57 "vdroop2",
58 "smpl_gm",
59 },
60 .SystemName = {
61 "batoilo", "smpl_gm", "soc", "vdroop1", "vdroop2", "ocp_gpu",
62 "ocp_tpu", "soft_ocp_cpu2", "soft_ocp_cpu1", "battery", "battery_cycle",
63 "main", "sub", "CPU2", "CPU1", "GPU", "TPU", "CAM", "DISP", "NPU",
64 "voltage_now", "current_now",
65 },
66 .LogFilePath = "/data/vendor/mitigation/thismeal.txt",
67 .TimestampFormat = "%Y-%m-%d %H:%M:%S",
68 };
69
70 const char kReadyFilePath[] = "/sys/devices/virtual/pmic/mitigation/instruction/ready";
71 const char kReadyProperty[] = "vendor.brownout.mitigation.ready";
72 const char kLastMealPath[] = "/data/vendor/mitigation/lastmeal.txt";
73 const char kBRRequestedProperty[] = "vendor.brownout_reason";
74 const char kLastMealProperty[] = "vendor.brownout.br.feasible";
75 const std::regex kTimestampRegex("^\\S+\\s[0-9]+:[0-9]+:[0-9]+\\S+$");
76
main(int,char **)77 int main(int /*argc*/, char ** /*argv*/) {
78 auto batteryMitigationStartTime = std::chrono::system_clock::now();
79 ABinderProcess_setThreadPoolMaxThreadCount(1);
80 ABinderProcess_startThreadPool();
81 bmSp = new BatteryMitigation(cfg);
82 if (!bmSp) {
83 return 0;
84 }
85 bool mitigationLogTimeValid = bmSp->isMitigationLogTimeValid(batteryMitigationStartTime,
86 cfg.LogFilePath,
87 cfg.TimestampFormat,
88 kTimestampRegex);
89 std::string reason = android::base::GetProperty(kBRRequestedProperty, "");
90 if (!reason.empty() && mitigationLogTimeValid) {
91 std::ifstream src(cfg.LogFilePath, std::ios::in);
92 std::ofstream dst(kLastMealPath, std::ios::out);
93 dst << src.rdbuf();
94 android::base::SetProperty(kLastMealProperty, "1");
95 }
96 bool isBatteryMitigationReady = false;
97 std::string ready_str;
98 int val = 0;
99 for (int i = 0; i < COUNT_LIMIT; i++) {
100 if (!android::base::ReadFileToString(kReadyFilePath, &ready_str)) {
101 continue;
102 }
103 ready_str = android::base::Trim(ready_str);
104 if (!android::base::ParseInt(ready_str, &val)) {
105 continue;
106 }
107 if (val == 1) {
108 isBatteryMitigationReady = true;
109 break;
110 }
111 }
112 if (isBatteryMitigationReady) {
113 android::base::SetProperty(kReadyProperty, "1");
114 }
115 while (true) {
116 pause();
117 }
118 return 0;
119 }
120