BatteryMonitor: get battery health data from sys file nodes
Requirements for battery health aidl hal v2, include sysfs nodes:
- Battery state of health
- Charging state
- Charging policy
- Date of manufacturing of the battery
- Date of first use of the battery
and functions
- setChargingPolicy
- getChargingPolicy
- getBatteryHealthData
Bug: 251425963
Test: m
Change-Id: I210dc403ba95b1b75759227f84bc32f32be1bbaf
Signed-off-by: Jack Wu <wjack@google.com>
diff --git a/healthd/BatteryMonitor.cpp b/healthd/BatteryMonitor.cpp
index a7571a2..4ea452a 100644
--- a/healthd/BatteryMonitor.cpp
+++ b/healthd/BatteryMonitor.cpp
@@ -55,7 +55,10 @@
using HealthInfo_2_0 = android::hardware::health::V2_0::HealthInfo;
using HealthInfo_2_1 = android::hardware::health::V2_1::HealthInfo;
using aidl::android::hardware::health::BatteryCapacityLevel;
+using aidl::android::hardware::health::BatteryChargingPolicy;
+using aidl::android::hardware::health::BatteryChargingState;
using aidl::android::hardware::health::BatteryHealth;
+using aidl::android::hardware::health::BatteryHealthData;
using aidl::android::hardware::health::BatteryStatus;
using aidl::android::hardware::health::HealthInfo;
@@ -227,6 +230,37 @@
return *ret;
}
+BatteryChargingPolicy getBatteryChargingPolicy(const char* chargingPolicy) {
+ static SysfsStringEnumMap<BatteryChargingPolicy> batteryChargingPolicyMap[] = {
+ {"0", BatteryChargingPolicy::INVALID}, {"1", BatteryChargingPolicy::DEFAULT},
+ {"2", BatteryChargingPolicy::LONG_LIFE}, {"3", BatteryChargingPolicy::ADAPTIVE},
+ {NULL, BatteryChargingPolicy::DEFAULT},
+ };
+
+ auto ret = mapSysfsString(chargingPolicy, batteryChargingPolicyMap);
+ if (!ret) {
+ *ret = BatteryChargingPolicy::DEFAULT;
+ }
+
+ return *ret;
+}
+
+BatteryChargingState getBatteryChargingState(const char* chargingState) {
+ static SysfsStringEnumMap<BatteryChargingState> batteryChargingStateMap[] = {
+ {"0", BatteryChargingState::INVALID}, {"1", BatteryChargingState::NORMAL},
+ {"2", BatteryChargingState::TOO_COLD}, {"3", BatteryChargingState::TOO_HOT},
+ {"4", BatteryChargingState::LONG_LIFE}, {"5", BatteryChargingState::ADAPTIVE},
+ {NULL, BatteryChargingState::NORMAL},
+ };
+
+ auto ret = mapSysfsString(chargingState, batteryChargingStateMap);
+ if (!ret) {
+ *ret = BatteryChargingState::NORMAL;
+ }
+
+ return *ret;
+}
+
static int readFromFile(const String8& path, std::string* buf) {
buf->clear();
if (android::base::ReadFileToString(path.c_str(), buf)) {
@@ -235,6 +269,10 @@
return buf->length();
}
+static bool writeToFile(const String8& path, int32_t in_value) {
+ return android::base::WriteStringToFile(std::to_string(in_value), path.c_str());
+}
+
static BatteryMonitor::PowerSupplyType readPowerSupplyType(const String8& path) {
static SysfsStringEnumMap<int> supplyTypeMap[] = {
{"Unknown", BatteryMonitor::ANDROID_POWER_SUPPLY_TYPE_UNKNOWN},
@@ -336,6 +374,17 @@
mHealthInfo->batteryFullChargeDesignCapacityUah =
getIntField(mHealthdConfig->batteryFullChargeDesignCapacityUahPath);
+ if (!mHealthdConfig->batteryStateOfHealthPath.isEmpty())
+ mHealthInfo->batteryStateOfHealth = getIntField(mHealthdConfig->batteryStateOfHealthPath);
+
+ if (!mHealthdConfig->batteryManufacturingDatePath.isEmpty())
+ mHealthInfo->batteryHealthData->batteryManufacturingDateSeconds =
+ getIntField(mHealthdConfig->batteryManufacturingDatePath);
+
+ if (!mHealthdConfig->batteryFirstUsageDatePath.isEmpty())
+ mHealthInfo->batteryHealthData->batteryFirstUsageSeconds =
+ getIntField(mHealthdConfig->batteryFirstUsageDatePath);
+
mHealthInfo->batteryTemperatureTenthsCelsius =
mBatteryFixedTemperature ? mBatteryFixedTemperature
: getIntField(mHealthdConfig->batteryTemperaturePath);
@@ -354,6 +403,12 @@
if (readFromFile(mHealthdConfig->batteryTechnologyPath, &buf) > 0)
mHealthInfo->batteryTechnology = String8(buf.c_str());
+ if (readFromFile(mHealthdConfig->chargingPolicyPath, &buf) > 0)
+ mHealthInfo->chargingPolicy = getBatteryChargingPolicy(buf.c_str());
+
+ if (readFromFile(mHealthdConfig->chargingStatePath, &buf) > 0)
+ mHealthInfo->chargingState = getBatteryChargingState(buf.c_str());
+
double MaxPower = 0;
for (size_t i = 0; i < mChargerNames.size(); i++) {
@@ -476,6 +531,43 @@
return static_cast<int>(result);
}
+status_t BatteryMonitor::setChargingPolicy(int value) {
+ status_t ret = NAME_NOT_FOUND;
+ bool result;
+ if (!mHealthdConfig->chargingPolicyPath.isEmpty()) {
+ result = writeToFile(mHealthdConfig->chargingPolicyPath, value);
+ if (!result) {
+ KLOG_WARNING(LOG_TAG, "setChargingPolicy fail\n");
+ ret = BAD_VALUE;
+ } else {
+ ret = OK;
+ }
+ }
+ return ret;
+}
+
+int BatteryMonitor::getChargingPolicy() {
+ BatteryChargingPolicy result = BatteryChargingPolicy::DEFAULT;
+ if (!mHealthdConfig->chargingPolicyPath.isEmpty()) {
+ std::string buf;
+ if (readFromFile(mHealthdConfig->chargingPolicyPath, &buf) > 0)
+ result = getBatteryChargingPolicy(buf.c_str());
+ }
+ return static_cast<int>(result);
+}
+
+int BatteryMonitor::getBatteryHealthData(int id) {
+ if (id == BATTERY_PROP_MANUFACTURING_DATE) {
+ if (!mHealthdConfig->batteryManufacturingDatePath.isEmpty())
+ return getIntField(mHealthdConfig->batteryManufacturingDatePath);
+ }
+ if (id == BATTERY_PROP_FIRST_USAGE_DATE) {
+ if (!mHealthdConfig->batteryFirstUsageDatePath.isEmpty())
+ return getIntField(mHealthdConfig->batteryFirstUsageDatePath);
+ }
+ return 0;
+}
+
status_t BatteryMonitor::getProperty(int id, struct BatteryProperty *val) {
status_t ret = BAD_VALUE;
std::string buf;
@@ -536,6 +628,21 @@
ret = OK;
break;
+ case BATTERY_PROP_CHARGING_POLICY:
+ val->valueInt64 = getChargingPolicy();
+ ret = OK;
+ break;
+
+ case BATTERY_PROP_MANUFACTURING_DATE:
+ val->valueInt64 = getBatteryHealthData(BATTERY_PROP_MANUFACTURING_DATE);
+ ret = OK;
+ break;
+
+ case BATTERY_PROP_FIRST_USAGE_DATE:
+ val->valueInt64 = getBatteryHealthData(BATTERY_PROP_FIRST_USAGE_DATE);
+ ret = OK;
+ break;
+
default:
break;
}
@@ -758,6 +865,44 @@
mHealthdConfig->batteryTechnologyPath = path;
}
+ if (mHealthdConfig->batteryStateOfHealthPath.isEmpty()) {
+ path.clear();
+ path.appendFormat("%s/%s/state_of_health", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0) {
+ mHealthdConfig->batteryStateOfHealthPath = path;
+ } else {
+ path.clear();
+ path.appendFormat("%s/%s/health_index", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0)
+ mHealthdConfig->batteryStateOfHealthPath = path;
+ }
+ }
+
+ if (mHealthdConfig->batteryManufacturingDatePath.isEmpty()) {
+ path.clear();
+ path.appendFormat("%s/%s/manufacturing_date", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0)
+ mHealthdConfig->batteryManufacturingDatePath = path;
+ }
+
+ if (mHealthdConfig->batteryFirstUsageDatePath.isEmpty()) {
+ path.clear();
+ path.appendFormat("%s/%s/first_usage_date", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0) mHealthdConfig->batteryFirstUsageDatePath = path;
+ }
+
+ if (mHealthdConfig->chargingStatePath.isEmpty()) {
+ path.clear();
+ path.appendFormat("%s/%s/charging_state", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0) mHealthdConfig->chargingStatePath = path;
+ }
+
+ if (mHealthdConfig->chargingPolicyPath.isEmpty()) {
+ path.clear();
+ path.appendFormat("%s/%s/charging_policy", POWER_SUPPLY_SYSFS_PATH, name);
+ if (access(path, R_OK) == 0) mHealthdConfig->chargingPolicyPath = path;
+ }
+
break;
case ANDROID_POWER_SUPPLY_TYPE_UNKNOWN:
@@ -810,6 +955,16 @@
KLOG_WARNING(LOG_TAG, "batteryChargeTimeToFullNowPath. not found\n");
if (mHealthdConfig->batteryFullChargeDesignCapacityUahPath.isEmpty())
KLOG_WARNING(LOG_TAG, "batteryFullChargeDesignCapacityUahPath. not found\n");
+ if (mHealthdConfig->batteryStateOfHealthPath.isEmpty())
+ KLOG_WARNING(LOG_TAG, "batteryStateOfHealthPath not found\n");
+ if (mHealthdConfig->batteryManufacturingDatePath.isEmpty())
+ KLOG_WARNING(LOG_TAG, "batteryManufacturingDatePath not found\n");
+ if (mHealthdConfig->batteryFirstUsageDatePath.isEmpty())
+ KLOG_WARNING(LOG_TAG, "batteryFirstUsageDatePath not found\n");
+ if (mHealthdConfig->chargingStatePath.isEmpty())
+ KLOG_WARNING(LOG_TAG, "chargingStatePath not found\n");
+ if (mHealthdConfig->chargingPolicyPath.isEmpty())
+ KLOG_WARNING(LOG_TAG, "chargingPolicyPath not found\n");
}
if (property_get("ro.boot.fake_battery", pval, NULL) > 0