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-rw-r--r--services/java/com/android/server/BatteryService.java3
-rw-r--r--services/jni/com_android_server_BatteryService.cpp127
2 files changed, 70 insertions, 60 deletions
diff --git a/services/java/com/android/server/BatteryService.java b/services/java/com/android/server/BatteryService.java
index ab9ae69b9945..84f2a95add4e 100644
--- a/services/java/com/android/server/BatteryService.java
+++ b/services/java/com/android/server/BatteryService.java
@@ -324,6 +324,9 @@ class BatteryService extends Binder {
&& mBatteryLevel <= mLowBatteryWarningLevel
&& (oldPlugged || mLastBatteryLevel > mLowBatteryWarningLevel);
+ if (mBatteryStatus == BatteryManager.BATTERY_STATUS_UNKNOWN)
+ mBatteryLevel = BATTERY_SCALE;
+
sendIntent();
// Separate broadcast is sent for power connected / not connected
diff --git a/services/jni/com_android_server_BatteryService.cpp b/services/jni/com_android_server_BatteryService.cpp
index 2ceb5356e624..166d6b489540 100644
--- a/services/jni/com_android_server_BatteryService.cpp
+++ b/services/jni/com_android_server_BatteryService.cpp
@@ -232,76 +232,83 @@ int register_android_server_BatteryService(JNIEnv* env)
DIR* dir = opendir(POWER_SUPPLY_PATH);
if (dir == NULL) {
- LOGE("Could not open %s\n", POWER_SUPPLY_PATH);
- return -1;
- }
- while ((entry = readdir(dir))) {
- const char* name = entry->d_name;
-
- // ignore "." and ".."
- if (name[0] == '.' && (name[1] == 0 || (name[1] == '.' && name[2] == 0))) {
- continue;
- }
+ // This indicates the kernel is built with
+ // CONFIG_POWER_SUPPLY disabled.
+ // This should be treated the same as a kernel with
+ // CONFIG_POWER_SUPPLY enabled, but not finding a
+ // power supply -- simply make sure all paths in
+ // gPaths are NULL
+ // jniRegisterNativeMethods etc. still should be run.
+ memset(&gPaths, 0, sizeof(gPaths));
+ } else {
+ while ((entry = readdir(dir))) {
+ const char* name = entry->d_name;
- char buf[20];
- // Look for "type" file in each subdirectory
- snprintf(path, sizeof(path), "%s/%s/type", POWER_SUPPLY_PATH, name);
- int length = readFromFile(path, buf, sizeof(buf));
- if (length > 0) {
- if (buf[length - 1] == '\n')
- buf[length - 1] = 0;
-
- if (strcmp(buf, "Mains") == 0) {
- snprintf(path, sizeof(path), "%s/%s/online", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.acOnlinePath = strdup(path);
+ // ignore "." and ".."
+ if (name[0] == '.' && (name[1] == 0 || (name[1] == '.' && name[2] == 0))) {
+ continue;
}
- else if (strcmp(buf, "USB") == 0) {
- snprintf(path, sizeof(path), "%s/%s/online", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.usbOnlinePath = strdup(path);
- }
- else if (strcmp(buf, "Battery") == 0) {
- snprintf(path, sizeof(path), "%s/%s/status", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.batteryStatusPath = strdup(path);
- snprintf(path, sizeof(path), "%s/%s/health", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.batteryHealthPath = strdup(path);
- snprintf(path, sizeof(path), "%s/%s/present", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.batteryPresentPath = strdup(path);
- snprintf(path, sizeof(path), "%s/%s/capacity", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.batteryCapacityPath = strdup(path);
-
- snprintf(path, sizeof(path), "%s/%s/voltage_now", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0) {
- gPaths.batteryVoltagePath = strdup(path);
- // voltage_now is in microvolts, not millivolts
- gVoltageDivisor = 1000;
- } else {
- snprintf(path, sizeof(path), "%s/%s/batt_vol", POWER_SUPPLY_PATH, name);
+
+ char buf[20];
+ // Look for "type" file in each subdirectory
+ snprintf(path, sizeof(path), "%s/%s/type", POWER_SUPPLY_PATH, name);
+ int length = readFromFile(path, buf, sizeof(buf));
+ if (length > 0) {
+ if (buf[length - 1] == '\n')
+ buf[length - 1] = 0;
+
+ if (strcmp(buf, "Mains") == 0) {
+ snprintf(path, sizeof(path), "%s/%s/online", POWER_SUPPLY_PATH, name);
if (access(path, R_OK) == 0)
- gPaths.batteryVoltagePath = strdup(path);
+ gPaths.acOnlinePath = strdup(path);
}
-
- snprintf(path, sizeof(path), "%s/%s/temp", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0) {
- gPaths.batteryTemperaturePath = strdup(path);
- } else {
- snprintf(path, sizeof(path), "%s/%s/batt_temp", POWER_SUPPLY_PATH, name);
+ else if (strcmp(buf, "USB") == 0) {
+ snprintf(path, sizeof(path), "%s/%s/online", POWER_SUPPLY_PATH, name);
if (access(path, R_OK) == 0)
- gPaths.batteryTemperaturePath = strdup(path);
+ gPaths.usbOnlinePath = strdup(path);
}
+ else if (strcmp(buf, "Battery") == 0) {
+ snprintf(path, sizeof(path), "%s/%s/status", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryStatusPath = strdup(path);
+ snprintf(path, sizeof(path), "%s/%s/health", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryHealthPath = strdup(path);
+ snprintf(path, sizeof(path), "%s/%s/present", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryPresentPath = strdup(path);
+ snprintf(path, sizeof(path), "%s/%s/capacity", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryCapacityPath = strdup(path);
- snprintf(path, sizeof(path), "%s/%s/technology", POWER_SUPPLY_PATH, name);
- if (access(path, R_OK) == 0)
- gPaths.batteryTechnologyPath = strdup(path);
+ snprintf(path, sizeof(path), "%s/%s/voltage_now", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0) {
+ gPaths.batteryVoltagePath = strdup(path);
+ // voltage_now is in microvolts, not millivolts
+ gVoltageDivisor = 1000;
+ } else {
+ snprintf(path, sizeof(path), "%s/%s/batt_vol", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryVoltagePath = strdup(path);
+ }
+
+ snprintf(path, sizeof(path), "%s/%s/temp", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0) {
+ gPaths.batteryTemperaturePath = strdup(path);
+ } else {
+ snprintf(path, sizeof(path), "%s/%s/batt_temp", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryTemperaturePath = strdup(path);
+ }
+
+ snprintf(path, sizeof(path), "%s/%s/technology", POWER_SUPPLY_PATH, name);
+ if (access(path, R_OK) == 0)
+ gPaths.batteryTechnologyPath = strdup(path);
+ }
}
}
+ closedir(dir);
}
- closedir(dir);
if (!gPaths.acOnlinePath)
LOGE("acOnlinePath not found");