355 lines
12 KiB
C++
355 lines
12 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2013 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define LOG_TAG "healthd"
|
||
|
|
|
||
|
|
#include "BatteryMonitor.h"
|
||
|
|
#include "BatteryPropertiesRegistrar.h"
|
||
|
|
|
||
|
|
#include <dirent.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <batteryservice/BatteryService.h>
|
||
|
|
#include <cutils/klog.h>
|
||
|
|
#include <utils/String8.h>
|
||
|
|
#include <utils/Vector.h>
|
||
|
|
|
||
|
|
#define POWER_SUPPLY_SUBSYSTEM "power_supply"
|
||
|
|
#define POWER_SUPPLY_SYSFS_PATH "/sys/class/" POWER_SUPPLY_SUBSYSTEM
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
|
||
|
|
struct sysfsStringEnumMap {
|
||
|
|
char* s;
|
||
|
|
int val;
|
||
|
|
};
|
||
|
|
|
||
|
|
static int mapSysfsString(const char* str,
|
||
|
|
struct sysfsStringEnumMap map[]) {
|
||
|
|
for (int i = 0; map[i].s; i++)
|
||
|
|
if (!strcmp(str, map[i].s))
|
||
|
|
return map[i].val;
|
||
|
|
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BatteryMonitor::getBatteryStatus(const char* status) {
|
||
|
|
int ret;
|
||
|
|
struct sysfsStringEnumMap batteryStatusMap[] = {
|
||
|
|
{ "Unknown", BATTERY_STATUS_UNKNOWN },
|
||
|
|
{ "Charging", BATTERY_STATUS_CHARGING },
|
||
|
|
{ "Discharging", BATTERY_STATUS_DISCHARGING },
|
||
|
|
{ "Not charging", BATTERY_STATUS_NOT_CHARGING },
|
||
|
|
{ "Full", BATTERY_STATUS_FULL },
|
||
|
|
{ NULL, 0 },
|
||
|
|
};
|
||
|
|
|
||
|
|
ret = mapSysfsString(status, batteryStatusMap);
|
||
|
|
if (ret < 0) {
|
||
|
|
KLOG_WARNING(LOG_TAG, "Unknown battery status '%s'\n", status);
|
||
|
|
ret = BATTERY_STATUS_UNKNOWN;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BatteryMonitor::getBatteryHealth(const char* status) {
|
||
|
|
int ret;
|
||
|
|
struct sysfsStringEnumMap batteryHealthMap[] = {
|
||
|
|
{ "Unknown", BATTERY_HEALTH_UNKNOWN },
|
||
|
|
{ "Good", BATTERY_HEALTH_GOOD },
|
||
|
|
{ "Overheat", BATTERY_HEALTH_OVERHEAT },
|
||
|
|
{ "Dead", BATTERY_HEALTH_DEAD },
|
||
|
|
{ "Over voltage", BATTERY_HEALTH_OVER_VOLTAGE },
|
||
|
|
{ "Unspecified failure", BATTERY_HEALTH_UNSPECIFIED_FAILURE },
|
||
|
|
{ "Cold", BATTERY_HEALTH_COLD },
|
||
|
|
{ NULL, 0 },
|
||
|
|
};
|
||
|
|
|
||
|
|
ret = mapSysfsString(status, batteryHealthMap);
|
||
|
|
if (ret < 0) {
|
||
|
|
KLOG_WARNING(LOG_TAG, "Unknown battery health '%s'\n", status);
|
||
|
|
ret = BATTERY_HEALTH_UNKNOWN;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BatteryMonitor::readFromFile(const String8& path, char* buf, size_t size) {
|
||
|
|
char *cp = NULL;
|
||
|
|
|
||
|
|
if (path.isEmpty())
|
||
|
|
return -1;
|
||
|
|
int fd = open(path.string(), O_RDONLY, 0);
|
||
|
|
if (fd == -1) {
|
||
|
|
KLOG_ERROR(LOG_TAG, "Could not open '%s'\n", path.string());
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
ssize_t count = TEMP_FAILURE_RETRY(read(fd, buf, size));
|
||
|
|
if (count > 0)
|
||
|
|
cp = (char *)memrchr(buf, '\n', count);
|
||
|
|
|
||
|
|
if (cp)
|
||
|
|
*cp = '\0';
|
||
|
|
else
|
||
|
|
buf[0] = '\0';
|
||
|
|
|
||
|
|
close(fd);
|
||
|
|
return count;
|
||
|
|
}
|
||
|
|
|
||
|
|
BatteryMonitor::PowerSupplyType BatteryMonitor::readPowerSupplyType(const String8& path) {
|
||
|
|
const int SIZE = 128;
|
||
|
|
char buf[SIZE];
|
||
|
|
int length = readFromFile(path, buf, SIZE);
|
||
|
|
BatteryMonitor::PowerSupplyType ret;
|
||
|
|
struct sysfsStringEnumMap supplyTypeMap[] = {
|
||
|
|
{ "Unknown", ANDROID_POWER_SUPPLY_TYPE_UNKNOWN },
|
||
|
|
{ "Battery", ANDROID_POWER_SUPPLY_TYPE_BATTERY },
|
||
|
|
{ "UPS", ANDROID_POWER_SUPPLY_TYPE_AC },
|
||
|
|
{ "Mains", ANDROID_POWER_SUPPLY_TYPE_AC },
|
||
|
|
{ "USB", ANDROID_POWER_SUPPLY_TYPE_USB },
|
||
|
|
{ "USB_DCP", ANDROID_POWER_SUPPLY_TYPE_AC },
|
||
|
|
{ "USB_CDP", ANDROID_POWER_SUPPLY_TYPE_AC },
|
||
|
|
{ "USB_ACA", ANDROID_POWER_SUPPLY_TYPE_AC },
|
||
|
|
{ "Wireless", ANDROID_POWER_SUPPLY_TYPE_WIRELESS },
|
||
|
|
{ NULL, 0 },
|
||
|
|
};
|
||
|
|
|
||
|
|
if (length <= 0)
|
||
|
|
return ANDROID_POWER_SUPPLY_TYPE_UNKNOWN;
|
||
|
|
|
||
|
|
ret = (BatteryMonitor::PowerSupplyType)mapSysfsString(buf, supplyTypeMap);
|
||
|
|
if (ret < 0)
|
||
|
|
ret = ANDROID_POWER_SUPPLY_TYPE_UNKNOWN;
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool BatteryMonitor::getBooleanField(const String8& path) {
|
||
|
|
const int SIZE = 16;
|
||
|
|
char buf[SIZE];
|
||
|
|
|
||
|
|
bool value = false;
|
||
|
|
if (readFromFile(path, buf, SIZE) > 0) {
|
||
|
|
if (buf[0] != '0') {
|
||
|
|
value = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
int BatteryMonitor::getIntField(const String8& path) {
|
||
|
|
const int SIZE = 128;
|
||
|
|
char buf[SIZE];
|
||
|
|
|
||
|
|
int value = 0;
|
||
|
|
if (readFromFile(path, buf, SIZE) > 0) {
|
||
|
|
value = strtol(buf, NULL, 0);
|
||
|
|
}
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool BatteryMonitor::update(void) {
|
||
|
|
struct BatteryProperties props;
|
||
|
|
|
||
|
|
props.chargerAcOnline = false;
|
||
|
|
props.chargerUsbOnline = false;
|
||
|
|
props.chargerWirelessOnline = false;
|
||
|
|
props.batteryStatus = BATTERY_STATUS_UNKNOWN;
|
||
|
|
props.batteryHealth = BATTERY_HEALTH_UNKNOWN;
|
||
|
|
|
||
|
|
if (!mBatteryPresentPath.isEmpty())
|
||
|
|
props.batteryPresent = getBooleanField(mBatteryPresentPath);
|
||
|
|
else
|
||
|
|
props.batteryPresent = true;
|
||
|
|
|
||
|
|
props.batteryLevel = getIntField(mBatteryCapacityPath);
|
||
|
|
props.batteryVoltage = getIntField(mBatteryVoltagePath) / 1000;
|
||
|
|
props.batteryTemperature = getIntField(mBatteryTemperaturePath);
|
||
|
|
|
||
|
|
const int SIZE = 128;
|
||
|
|
char buf[SIZE];
|
||
|
|
String8 btech;
|
||
|
|
|
||
|
|
if (readFromFile(mBatteryStatusPath, buf, SIZE) > 0)
|
||
|
|
props.batteryStatus = getBatteryStatus(buf);
|
||
|
|
|
||
|
|
if (readFromFile(mBatteryHealthPath, buf, SIZE) > 0)
|
||
|
|
props.batteryHealth = getBatteryHealth(buf);
|
||
|
|
|
||
|
|
if (readFromFile(mBatteryTechnologyPath, buf, SIZE) > 0)
|
||
|
|
props.batteryTechnology = String8(buf);
|
||
|
|
|
||
|
|
unsigned int i;
|
||
|
|
|
||
|
|
for (i = 0; i < mChargerNames.size(); i++) {
|
||
|
|
String8 path;
|
||
|
|
path.appendFormat("%s/%s/online", POWER_SUPPLY_SYSFS_PATH,
|
||
|
|
mChargerNames[i].string());
|
||
|
|
|
||
|
|
if (readFromFile(path, buf, SIZE) > 0) {
|
||
|
|
if (buf[0] != '0') {
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/type", POWER_SUPPLY_SYSFS_PATH,
|
||
|
|
mChargerNames[i].string());
|
||
|
|
switch(readPowerSupplyType(path)) {
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_AC:
|
||
|
|
props.chargerAcOnline = true;
|
||
|
|
break;
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_USB:
|
||
|
|
props.chargerUsbOnline = true;
|
||
|
|
break;
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_WIRELESS:
|
||
|
|
props.chargerWirelessOnline = true;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
KLOG_WARNING(LOG_TAG, "%s: Unknown power supply type\n",
|
||
|
|
mChargerNames[i].string());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
KLOG_INFO(LOG_TAG, "battery l=%d v=%d t=%s%d.%d h=%d st=%d chg=%s%s%s\n",
|
||
|
|
props.batteryLevel, props.batteryVoltage,
|
||
|
|
props.batteryTemperature < 0 ? "-" : "",
|
||
|
|
abs(props.batteryTemperature / 10),
|
||
|
|
abs(props.batteryTemperature % 10), props.batteryHealth,
|
||
|
|
props.batteryStatus,
|
||
|
|
props.chargerAcOnline ? "a" : "",
|
||
|
|
props.chargerUsbOnline ? "u" : "",
|
||
|
|
props.chargerWirelessOnline ? "w" : "");
|
||
|
|
|
||
|
|
if (mBatteryPropertiesRegistrar != NULL)
|
||
|
|
mBatteryPropertiesRegistrar->notifyListeners(props);
|
||
|
|
|
||
|
|
return props.chargerAcOnline | props.chargerUsbOnline |
|
||
|
|
props.chargerWirelessOnline;
|
||
|
|
}
|
||
|
|
|
||
|
|
void BatteryMonitor::init(bool nosvcmgr) {
|
||
|
|
String8 path;
|
||
|
|
|
||
|
|
DIR* dir = opendir(POWER_SUPPLY_SYSFS_PATH);
|
||
|
|
if (dir == NULL) {
|
||
|
|
KLOG_ERROR(LOG_TAG, "Could not open %s\n", POWER_SUPPLY_SYSFS_PATH);
|
||
|
|
} else {
|
||
|
|
struct dirent* entry;
|
||
|
|
|
||
|
|
while ((entry = readdir(dir))) {
|
||
|
|
const char* name = entry->d_name;
|
||
|
|
|
||
|
|
if (!strcmp(name, ".") || !strcmp(name, ".."))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
char buf[20];
|
||
|
|
// Look for "type" file in each subdirectory
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/type", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
switch(readPowerSupplyType(path)) {
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_AC:
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_USB:
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_WIRELESS:
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/online", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path.string(), R_OK) == 0)
|
||
|
|
mChargerNames.add(String8(name));
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_BATTERY:
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/status", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryStatusPath = path;
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/health", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryHealthPath = path;
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/present", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryPresentPath = path;
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/capacity", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryCapacityPath = path;
|
||
|
|
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/voltage_now", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0) {
|
||
|
|
mBatteryVoltagePath = path;
|
||
|
|
} else {
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/batt_vol", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryVoltagePath = path;
|
||
|
|
}
|
||
|
|
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/temp", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0) {
|
||
|
|
mBatteryTemperaturePath = path;
|
||
|
|
} else {
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/batt_temp", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryTemperaturePath = path;
|
||
|
|
}
|
||
|
|
|
||
|
|
path.clear();
|
||
|
|
path.appendFormat("%s/%s/technology", POWER_SUPPLY_SYSFS_PATH, name);
|
||
|
|
if (access(path, R_OK) == 0)
|
||
|
|
mBatteryTechnologyPath = path;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case ANDROID_POWER_SUPPLY_TYPE_UNKNOWN:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
closedir(dir);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!mChargerNames.size())
|
||
|
|
KLOG_ERROR(LOG_TAG, "No charger supplies found\n");
|
||
|
|
if (mBatteryStatusPath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryStatusPath not found\n");
|
||
|
|
if (mBatteryHealthPath.isEmpty())
|
||
|
|
KLOG_WARNING("BatteryHealthPath not found\n");
|
||
|
|
if (mBatteryPresentPath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryPresentPath not found\n");
|
||
|
|
if (mBatteryCapacityPath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryCapacityPath not found\n");
|
||
|
|
if (mBatteryVoltagePath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryVoltagePath not found\n");
|
||
|
|
if (mBatteryTemperaturePath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryTemperaturePath not found\n");
|
||
|
|
if (mBatteryTechnologyPath.isEmpty())
|
||
|
|
KLOG_WARNING(LOG_TAG, "BatteryTechnologyPath not found\n");
|
||
|
|
|
||
|
|
if (nosvcmgr == false) {
|
||
|
|
mBatteryPropertiesRegistrar = new BatteryPropertiesRegistrar(this);
|
||
|
|
mBatteryPropertiesRegistrar->publish();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}; // namespace android
|