提交: e0cf1cfb2ff03a995e9be86007f87326e71fcc88 - frameworks-base (git)

frameworks/base

Commit MetaInfo

• 修訂: e0cf1cfb2ff03a995e9be86007f87326e71fcc88 (tree)
• 時間: 2011-08-05 17:26:22
• 作者: Yi Sun <beyounn@gmai...>
• Commiter: Chih-Wei Huang

Log Message

Add battery status support for PC and VMs

Change Summary

• add: core/res/res/drawable/gpm_ac_adapter.png
• modified: services/java/com/android/server/BatteryService.java
• modified: services/jni/com_android_server_BatteryService.cpp

差異

Binary files /dev/null and b/core/res/res/drawable/gpm_ac_adapter.png differ

--- a/services/java/com/android/server/BatteryService.java
+++ b/services/java/com/android/server/BatteryService.java
@@ -445,7 +445,9 @@ class BatteryService extends Binder {
                 mBatteryStatus == BatteryManager.BATTERY_STATUS_FULL) {
             return com.android.internal.R.drawable.stat_sys_battery;
         } else {
-            return com.android.internal.R.drawable.stat_sys_battery_unknown;
+            return mBatteryPresent ?
+                com.android.internal.R.drawable.stat_sys_battery_unknown :
+                com.android.internal.R.drawable.gpm_ac_adapter;
         }
     }
 

--- a/services/jni/com_android_server_BatteryService.cpp
+++ b/services/jni/com_android_server_BatteryService.cpp
@@ -77,6 +77,8 @@ struct PowerSupplyPaths {
     char* batteryHealthPath;
     char* batteryPresentPath;
     char* batteryCapacityPath;
+    char* batteryChargeNowPath;
+    char* batteryChargeFullPath;
     char* batteryVoltagePath;
     char* batteryTemperaturePath;
     char* batteryTechnologyPath;
@@ -194,14 +196,44 @@ static void setVoltageField(JNIEnv* env, jobject obj, const char* path, jfieldID
     env->SetIntField(obj, fieldID, value);
 }
 
+static void setChargeLevel(JNIEnv* env, jobject obj, jfieldID fieldID) {
+    float now,full;
+    int value = 0;
+    char buf[128];
+
+    if (readFromFile(gPaths.batteryChargeNowPath, buf, 128) > 0 ) {
+      now = atoi(buf);
+      if (readFromFile(gPaths.batteryChargeFullPath, buf, 128) > 0 ) {
+        full = atoi(buf);
+        value = (int)((now/full) * 100);
+      } else {
+        value = now;
+      }
+    }
+    env->SetIntField(obj, fieldID, value);
+}
 
 static void android_server_BatteryService_update(JNIEnv* env, jobject obj)
 {
     setBooleanField(env, obj, gPaths.acOnlinePath, gFieldIds.mAcOnline);
     setBooleanField(env, obj, gPaths.usbOnlinePath, gFieldIds.mUsbOnline);
     setBooleanField(env, obj, gPaths.batteryPresentPath, gFieldIds.mBatteryPresent);
+    if ( !gPaths.acOnlinePath && !gPaths.usbOnlinePath && !gPaths.batteryPresentPath) {
+        /* most likely, we have a PC here */
+        env->SetBooleanField(obj, gFieldIds.mAcOnline, true);
+    }
     
-    setIntField(env, obj, gPaths.batteryCapacityPath, gFieldIds.mBatteryLevel);
+   if (gPaths.batteryPresentPath) {
+       if (gPaths.batteryCapacityPath) {
+           setIntField(env, obj, gPaths.batteryCapacityPath,
+                       gFieldIds.mBatteryLevel);
+       } else {
+           setChargeLevel(env,obj, gFieldIds.mBatteryLevel);
+       }
+   } else {
+     /*This is a PC or VM, faking the level to full, we are on AC anyway */
+     env->SetIntField(obj, gFieldIds.mBatteryLevel, 100);
+   }
     setVoltageField(env, obj, gPaths.batteryVoltagePath, gFieldIds.mBatteryVoltage);
     setIntField(env, obj, gPaths.batteryTemperaturePath, gFieldIds.mBatteryTemperature);
     
@@ -226,6 +258,7 @@ static JNINativeMethod sMethods[] = {
 	{"native_update", "()V", (void*)android_server_BatteryService_update},
 };
 
+
 int register_android_server_BatteryService(JNIEnv* env)
 {
     char    path[PATH_MAX];
@@ -273,8 +306,31 @@ int register_android_server_BatteryService(JNIEnv* env)
                 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)
+                if (access(path, R_OK) == 0) {
                     gPaths.batteryCapacityPath = strdup(path);
+                } else {
+                    snprintf(path, sizeof(path), "%s/%s/charge_now",
+                             POWER_SUPPLY_PATH, name);
+                    if (access(path, R_OK) == 0) {
+                        gPaths.batteryChargeNowPath = strdup(path);
+                        snprintf(path, sizeof(path), "%s/%s/charge_full",
+                                 POWER_SUPPLY_PATH, name);
+                        if (access(path, R_OK) == 0) {
+                            gPaths.batteryChargeFullPath = strdup(path);
+                        }
+                    } else {
+                        snprintf(path, sizeof(path), "%s/%s/energy_now",
+                             POWER_SUPPLY_PATH, name);
+                        if (access(path, R_OK) == 0) {
+                            gPaths.batteryChargeNowPath = strdup(path);
+                            snprintf(path, sizeof(path), "%s/%s/energy_full",
+                                     POWER_SUPPLY_PATH, name);
+                            if (access(path, R_OK) == 0) {
+                              gPaths.batteryChargeFullPath = strdup(path);
+                            }
+                        }
+                    }
+                }
 
                 snprintf(path, sizeof(path), "%s/%s/voltage_now", POWER_SUPPLY_PATH, name);
                 if (access(path, R_OK) == 0) {
@@ -314,7 +370,8 @@ int register_android_server_BatteryService(JNIEnv* env)
         LOGE("batteryHealthPath not found");
     if (!gPaths.batteryPresentPath)
         LOGE("batteryPresentPath not found");
-    if (!gPaths.batteryCapacityPath)
+    if (!gPaths.batteryCapacityPath && (!gPaths.batteryChargeNowPath ||
+                                        !gPaths.batteryChargeFullPath))
         LOGE("batteryCapacityPath not found");
     if (!gPaths.batteryVoltagePath)
         LOGE("batteryVoltagePath not found");