healthd: BatteryService dumpstate support

Change-Id: Ia6938b7126751801310632c995af0f96e41f5f64

healthd/BatteryMonitor.cpp

@@ -170,7 +170,6 @@ int BatteryMonitor::getIntField(const String8& path) {
 }
 
 bool BatteryMonitor::update(void) {
-    struct BatteryProperties props;
     struct BatteryExtraProperties extraProps;
     bool logthis;
 
@@ -242,10 +241,6 @@ bool BatteryMonitor::update(void) {
         }
     }
 
-    /* temporary while these are moved and dumpsys reworked */
-    props.batteryCurrentNow  = extraProps.batteryCurrentNow;
-    props.batteryChargeCounter = extraProps.batteryChargeCounter;
-
     logthis = !healthd_board_battery_update(&props);
 
     if (logthis) {
@@ -325,6 +320,41 @@ status_t BatteryMonitor::getProperty(int id, struct BatteryProperty *val) {
     return ret;
 }
 
+void BatteryMonitor::dumpState(int fd) {
+    int v;
+    char vs[128];
+
+    snprintf(vs, sizeof(vs), "ac: %d usb: %d wireless: %d\n",
+             props.chargerAcOnline, props.chargerUsbOnline,
+             props.chargerWirelessOnline);
+    write(fd, vs, strlen(vs));
+    snprintf(vs, sizeof(vs), "status: %d health: %d present: %d\n",
+             props.batteryStatus, props.batteryHealth, props.batteryPresent);
+    write(fd, vs, strlen(vs));
+    snprintf(vs, sizeof(vs), "level: %d voltage: %d temp: %d\n",
+             props.batteryLevel, props.batteryVoltage,
+             props.batteryTemperature);
+    write(fd, vs, strlen(vs));
+
+    if (!mHealthdConfig->batteryCurrentNowPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryCurrentNowPath);
+        snprintf(vs, sizeof(vs), "current now: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+
+    if (!mHealthdConfig->batteryCurrentAvgPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryCurrentAvgPath);
+        snprintf(vs, sizeof(vs), "current avg: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+
+    if (!mHealthdConfig->batteryChargeCounterPath.isEmpty()) {
+        v = getIntField(mHealthdConfig->batteryChargeCounterPath);
+        snprintf(vs, sizeof(vs), "charge counter: %d\n", v);
+        write(fd, vs, strlen(vs));
+    }
+}
+
 void BatteryMonitor::init(struct healthd_config *hc) {
     String8 path;
 

healthd/BatteryMonitor.h

@@ -40,11 +40,13 @@ class BatteryMonitor {
     void init(struct healthd_config *hc);
     bool update(void);
     status_t getProperty(int id, struct BatteryProperty *val);
+    void dumpState(int fd);
 
   private:
     struct healthd_config *mHealthdConfig;
     Vector<String8> mChargerNames;
     bool mBatteryDevicePresent;
+    struct BatteryProperties props;
 
     int getBatteryStatus(const char* status);
     int getBatteryHealth(const char* status);

healthd/BatteryPropertiesRegistrar.cpp

@@ -18,7 +18,10 @@
 #include <batteryservice/BatteryService.h>
 #include <batteryservice/IBatteryPropertiesListener.h>
 #include <batteryservice/IBatteryPropertiesRegistrar.h>
+#include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
+#include <binder/PermissionCache.h>
+#include <private/android_filesystem_config.h>
 #include <utils/Errors.h>
 #include <utils/Mutex.h>
 #include <utils/String16.h>
@@ -69,6 +72,19 @@ status_t BatteryPropertiesRegistrar::getProperty(int id, struct BatteryProperty
     return healthd_get_property(id, val);
 }
 
+status_t BatteryPropertiesRegistrar::dump(int fd, const Vector<String16>& args) {
+    IPCThreadState* self = IPCThreadState::self();
+    const int pid = self->getCallingPid();
+    const int uid = self->getCallingUid();
+    if ((uid != AID_SHELL) &&
+        !PermissionCache::checkPermission(
+                String16("android.permission.DUMP"), pid, uid))
+        return PERMISSION_DENIED;
+
+    healthd_dump_battery_state(fd);
+    return OK;
+}
+
 void BatteryPropertiesRegistrar::binderDied(const wp<IBinder>& who) {
     Mutex::Autolock _l(mRegistrationLock);
 

healthd/BatteryPropertiesRegistrar.h

@@ -19,6 +19,7 @@
 
 #include <binder/IBinder.h>
 #include <utils/Mutex.h>
+#include <utils/String16.h>
 #include <utils/Vector.h>
 #include <batteryservice/BatteryService.h>
 #include <batteryservice/IBatteryPropertiesListener.h>
@@ -39,6 +40,7 @@ private:
     void registerListener(const sp<IBatteryPropertiesListener>& listener);
     void unregisterListener(const sp<IBatteryPropertiesListener>& listener);
     status_t getProperty(int id, struct BatteryProperty *val);
+    status_t dump(int fd, const Vector<String16>& args);
     void binderDied(const wp<IBinder>& who);
 };
 

healthd/healthd.cpp

@@ -195,6 +195,11 @@ void healthd_battery_update(void) {
                 -1 : healthd_config.periodic_chores_interval_fast * 1000;
 }
 
+void healthd_dump_battery_state(int fd) {
+    gBatteryMonitor->dumpState(fd);
+    fsync(fd);
+}
+
 static void periodic_chores() {
     healthd_battery_update();
 }

healthd/healthd.h

@@ -72,6 +72,7 @@ int healthd_register_event(int fd, void (*handler)(uint32_t));
 void healthd_battery_update();
 android::status_t healthd_get_property(int id,
     struct android::BatteryProperty *val);
+void healthd_dump_battery_state(int fd);
 
 struct healthd_mode_ops {
     void (*init)(struct healthd_config *config);