Android: don't compile powermgmt-sim.c

Instead implement a bit of battery monitoring. Currently it only fetches the battery level (in %) every 30s,
but it could do more like battery status, charger connected, voltage...
Theoretically, we could also exit/quit after some time of inactivity too
(perhaps not a bad idea since Rockbox puts a slight but still non-zero CPU load even if doing nothing).

Ironically, Rockbox is now the only way to get the exact battery level (at least I haven't found anything yet) on my phone :-)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27974 a1c6a512-1295-4272-9138-f99709370657

android/src/org/rockbox/RockboxService.java

@@ -9,6 +9,8 @@ import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Enumeration;
+import java.util.Timer;
+import java.util.TimerTask;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
@@ -16,7 +18,10 @@ import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
+import android.content.BroadcastReceiver;
+import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.os.IBinder;
 import android.util.Log;
 
@@ -36,6 +41,9 @@ public class RockboxService extends Service
 	private Method mStopForeground;
 	private Object[] mStartForegroundArgs = new Object[2];
 	private Object[] mStopForegroundArgs = new Object[1];
+	private IntentFilter itf;
+	private BroadcastReceiver batt_monitor;
+	private int battery_level;
 	@Override
 	public void onCreate()
 	{
@@ -161,6 +169,43 @@ public class RockboxService extends Service
 		return null;
 	}
 
+	
+	@SuppressWarnings("unused")
+	/*
+	 * Sets up the battery monitor which receives the battery level
+	 * about each 30 seconds
+	 */
+	private void initBatteryMonitor()
+	{
+		itf = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
+		batt_monitor = new BroadcastReceiver() 
+		{			
+			@Override
+			public void onReceive(Context context, Intent intent) 
+			{
+				/* we get literally spammed with battery statuses 
+				 * if we don't delay the re-attaching
+				 */
+				TimerTask tk = new TimerTask() {
+					public void run() {
+						registerReceiver(batt_monitor, itf);
+					}
+				};
+				Timer t = new Timer();
+				context.unregisterReceiver(this);
+				int rawlevel = intent.getIntExtra("level", -1);
+				int scale = intent.getIntExtra("scale", -1);
+				if (rawlevel >= 0 && scale > 0)
+					battery_level = (rawlevel * 100) / scale;
+				else
+					battery_level = -1;
+				/* query every 30s should be sufficient */ 
+				t.schedule(tk, 30000);
+			}
+		};
+		registerReceiver(batt_monitor, itf);
+	}
+	
     /* all below is heavily based on the examples found on
      * http://developer.android.com/reference/android/app/Service.html
      */

apps/settings.c

@@ -852,7 +852,10 @@ void settings_apply(bool read_disk)
 #endif
     set_poweroff_timeout(global_settings.poweroff);
 
+#if defined(BATTERY_CAPACITY_INC) && BATTERY_CAPACITY_INC > 0
     set_battery_capacity(global_settings.battery_capacity);
+#endif
+
 #if BATTERY_TYPES_COUNT > 1
     set_battery_type(global_settings.battery_type);
 #endif

apps/settings.h

@@ -619,7 +619,9 @@ struct user_settings
 
     /* power settings */
     int poweroff;   /* idle power off timer */
+#if defined(BATTERY_CAPACITY_INC) && BATTERY_CAPACITY_INC > 0
     int battery_capacity; /* in mAh */
+#endif
 
 #if BATTERY_TYPES_COUNT > 1
     int battery_type;  /* for units which can take multiple types (Ondio). */

apps/settings_list.c

@@ -763,7 +763,7 @@ const struct settings_list settings[] = {
 #endif
                   "max files in dir", UNIT_INT, 50, 10000, 50,
                   NULL, NULL, NULL),
-#if BATTERY_CAPACITY_INC > 0
+#if defined(BATTERY_CAPACITY_INC) && BATTERY_CAPACITY_INC > 0
     INT_SETTING(0, battery_capacity, LANG_BATTERY_CAPACITY,
                 BATTERY_CAPACITY_DEFAULT, "battery capacity", UNIT_MAH,
                 BATTERY_CAPACITY_MIN, BATTERY_CAPACITY_MAX,

firmware/SOURCES

@@ -1709,6 +1709,7 @@ target/hosted/android/lc-android.c
 target/hosted/android/button-android.c
 target/hosted/android/kernel-android.c
 target/hosted/android/pcm-android.c
+target/hosted/android/powermgmt-android.c
 target/hosted/android/system-android.c
 #ifdef APPLICATION
 target/hosted/android/app/button-application.c

firmware/target/hosted/android/system-android.c

@@ -55,5 +55,8 @@ Java_org_rockbox_RockboxService_main(JNIEnv *env, jobject this)
     env_ptr = env;
     RockboxService_instance = this;
     RockboxService_class = (*env)->GetObjectClass(env, this);
+
+
+    powermgmt_init_target();
     main();
 }

uisimulator/common/SOURCES

@@ -12,7 +12,7 @@ backlight-sim.c
 #if (CONFIG_PLATFORM & PLATFORM_SDL)
 io.c
 sim_tasks.c
+powermgmt-sim.c
 #endif
 /* this is still needed for application since it has some stubs */
-powermgmt-sim.c
 stubs.c