AriesParts: add controls for fast USB charging

Change-Id: I0e033199775461d685fcb02877f0fdf707f1b4fe
jt1134 · Mar 15, 2013 · 7e1b3bf · 7e1b3bf
1 parent b84801b
commit 7e1b3bf
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Showing 4 changed files with 48 additions and 0 deletions.
diff --git a/AriesParts/res/values/strings.xml b/AriesParts/res/values/strings.xml
@@ -67,4 +67,9 @@
     <string name="imei_not_sane_message">A problem was detected with your device. Your device IMEI number is invalid. An invalid IMEI number could cause network issues including the inability to call emergency numbers.</string>
     <string name="imei_not_sane_ok">OK</string>
 
+    <!-- Fast USB charging -->
+    <string name="category_force_fast_charge_title">USB Charging</string>
+    <string name="force_fast_charge_title_head">Force fast charging</string>
+    <string name="force_fast_charge_summary_on">Fast charging enabled</string>
+    <string name="force_fast_charge_summary_off">Fast charging disabled</string>
 </resources>
diff --git a/AriesParts/res/xml/main.xml b/AriesParts/res/xml/main.xml
@@ -99,4 +99,15 @@
                 android:summary="@string/vibration_summary_head" />
          </PreferenceCategory>
 
+        <PreferenceCategory
+            android:title="@string/category_force_fast_charge_title"
+            android:key="category_force_fast_charge">
+            <!-- Fast charge -->
+            <CheckBoxPreference
+                android:key="force_fast_charge"
+                android:title="@string/force_fast_charge_title_head"
+                android:summaryOn="@string/force_fast_charge_summary_on"
+                android:summaryOff="@string/force_fast_charge_summary_off" />
+         </PreferenceCategory>
+
 </PreferenceScreen>
diff --git a/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java b/AriesParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
@@ -28,6 +28,8 @@ public class DeviceSettings extends PreferenceActivity  {
     public static final String KEY_DESKDOCK_AUDIO = "deskdock_audio";
     public static final String KEY_DOCK_AUDIO_CATEGORY = "category_dock_audio";
     public static final String KEY_VIBRATION = "vibration";
+    public static final String KEY_FORCE_FAST_CHARGE = "force_fast_charge";
+    public static final String KEY_FORCE_FAST_CHARGE_CATEGORY = "category_force_fast_charge";
 
     private ColorTuningPreference mColorTuning;
     private ListPreference mMdnie;
@@ -40,6 +42,7 @@ public class DeviceSettings extends PreferenceActivity  {
     private CheckBoxPreference mCarDockAudio;
     private CheckBoxPreference mDeskDockAudio;
     private VibrationPreference mVibration;
+    private CheckBoxPreference mForceFastCharge;
 
     private BroadcastReceiver mHeadsetReceiver = new BroadcastReceiver() {
 
@@ -98,6 +101,15 @@ public void onCreate(Bundle savedInstanceState) {
         mVibration = (VibrationPreference) findPreference(KEY_VIBRATION);
         mVibration.setEnabled(VibrationPreference.isSupported());
 
+        mForceFastCharge = (CheckBoxPreference) findPreference(KEY_FORCE_FAST_CHARGE);
+        if (ForceFastCharge.isSupported()) {
+            mForceFastCharge.setOnPreferenceChangeListener(new ForceFastCharge());
+        } else {
+            PreferenceCategory category = (PreferenceCategory) getPreferenceScreen().findPreference(KEY_FORCE_FAST_CHARGE_CATEGORY);
+            category.removePreference(mForceFastCharge);
+            getPreferenceScreen().removePreference(category);
+        }
+
         mTvOut = new TvOut();
         mTvOutEnable = (CheckBoxPreference) findPreference(KEY_TVOUT_ENABLE);
         mTvOutSystem = (ListPreference) findPreference(KEY_TVOUT_SYSTEM);

diff --git a/AriesParts/src/com/cyanogenmod/settings/device/ForceFastCharge.java b/AriesParts/src/com/cyanogenmod/settings/device/ForceFastCharge.java
@@ -0,0 +1,20 @@
+package com.cyanogenmod.settings.device;
+
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+
+public class ForceFastCharge implements OnPreferenceChangeListener {
+
+    private static final String FILE = "/sys/kernel/fast_charge/force_fast_charge";
+
+    public static boolean isSupported() {
+        return Utils.fileExists(FILE);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        Utils.writeValue(FILE, ((Boolean) newValue) ? "1" : "0");
+        return true;
+    }
+
+}