Add GPU@OC support change by sysfs

Change-Id: I0e56cffb24dedf184339694094fe5ab602b3b939

8 files changed, 152 insertions, 0 deletions

diff --git a/GNexusParts/AndroidManifest.xml b/GNexusParts/AndroidManifest.xml
index 12b1009..e8994c1 100644
--- a/GNexusParts/AndroidManifest.xml
+++ b/GNexusParts/AndroidManifest.xml
@@ -26,6 +26,7 @@
         <activity android:name=".GeneralFragmentActivity" />
         <activity android:name=".DisplayFragmentActivity" />
         <activity android:name=".SoundFragmentActivity" />
+        <activity android:name=".OverClockFragmentActivity" />
     </application>
 
 </manifest>
diff --git a/GNexusParts/res/values/arrays.xml b/GNexusParts/res/values/arrays.xml
new file mode 100644
index 0000000..9dc3111
--- /dev/null
+++ b/GNexusParts/res/values/arrays.xml
@@ -0,0 +1,13 @@
+<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string-array name="gpu_overclock_entries">
+        <item>307,2 MHz (default)</item>
+        <item>384,0 MHz</item>
+        <item>512,0 MHz</item>
+    </string-array>
+
+    <string-array name="gpu_overclock_values" translatable="false">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+    </string-array>
+</resources>
diff --git a/GNexusParts/res/values/strings.xml b/GNexusParts/res/values/strings.xml
index 5bc261d..01902a5 100644
--- a/GNexusParts/res/values/strings.xml
+++ b/GNexusParts/res/values/strings.xml
@@ -48,4 +48,8 @@
     <string name="hspa_title_head">HSPA</string>
     <string name="hspa_summary_head">Enable HSDPA/HSUPA</string>
 
+    <string name="category_speed_title">GPU</string>
+    <string name="category_gpu_title">GPU</string>
+    <string name="gpu_overclock_title">Clock Speed</string>
+
 </resources>
diff --git a/GNexusParts/res/xml/overclock_preferences.xml b/GNexusParts/res/xml/overclock_preferences.xml
new file mode 100644
index 0000000..551275b
--- /dev/null
+++ b/GNexusParts/res/xml/overclock_preferences.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <ListPreference
+        android:key="gpu_overclock"
+        android:title="@string/gpu_overclock_title"
+        android:entries="@array/gpu_overclock_entries"
+        android:entryValues="@array/gpu_overclock_values"
+        android:defaultValue="0" />
+
+</PreferenceScreen>
diff --git a/GNexusParts/src/com/cyanogenmod/settings/device/DeviceSettings.java b/GNexusParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
index 3499565..93e271d 100644
--- a/GNexusParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
+++ b/GNexusParts/src/com/cyanogenmod/settings/device/DeviceSettings.java
@@ -46,6 +46,7 @@ public class DeviceSettings extends Activity {
     public static final String KEY_VIBRATOR_TUNING = "vibrator_tuning";
     public static final String KEY_CATEGORY_RADIO = "category_radio";
     public static final String KEY_HSPA = "hspa";
+    public static final String KEY_GPU_OVERCLOCK = "gpu_overclock";
 
     ViewPager mViewPager;
     TabsAdapter mTabsAdapter;
@@ -68,6 +69,8 @@ public class DeviceSettings extends Activity {
                 DisplayFragmentActivity.class, null);
         mTabsAdapter.addTab(bar.newTab().setText(R.string.general_title),
                 GeneralFragmentActivity.class, null);
+        mTabsAdapter.addTab(bar.newTab().setText(R.string.category_speed_title),
+                OverClockFragmentActivity.class, null);
 
         if (savedInstanceState != null) {
             bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
diff --git a/GNexusParts/src/com/cyanogenmod/settings/device/GpuOverclock.java b/GNexusParts/src/com/cyanogenmod/settings/device/GpuOverclock.java
new file mode 100644
index 0000000..63a1514
--- /dev/null
+++ b/GNexusParts/src/com/cyanogenmod/settings/device/GpuOverclock.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.cyanogenmod.settings.device;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceChangeListener;
+import android.preference.PreferenceManager;
+
+public class GpuOverclock implements OnPreferenceChangeListener {
+
+    private static final String FILE = "/sys/devices/system/cpu/cpu0/cpufreq/gpu_oc";
+
+    public static boolean isSupported() {
+        return Utils.fileExists(FILE);
+    }
+
+    public static void restore(Context context) {
+        if (!isSupported()) {
+            return;
+        }
+
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+        Utils.writeValue(FILE, sharedPrefs.getString(DeviceSettings.KEY_GPU_OVERCLOCK, "0"));
+    }
+
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        Utils.writeValue(FILE, (String) newValue);
+        updateSummary((ListPreference) preference, Integer.parseInt(newValue.toString()));
+        return true;
+    }
+
+    public static void updateSummary(ListPreference preference, int value) {
+        final CharSequence[] entries = preference.getEntries();
+        final CharSequence[] values = preference.getEntryValues();
+        int best = 0;
+        for (int i = 0; i < values.length; i++) {
+            int summaryValue = Integer.parseInt(values[i].toString());
+            if (value >= summaryValue) {
+                best = i;
+            }
+        }
+        preference.setSummary(entries[best].toString());
+    }
+}
diff --git a/GNexusParts/src/com/cyanogenmod/settings/device/OverClockFragmentActivity.java b/GNexusParts/src/com/cyanogenmod/settings/device/OverClockFragmentActivity.java
new file mode 100644
index 0000000..66be07b
--- /dev/null
+++ b/GNexusParts/src/com/cyanogenmod/settings/device/OverClockFragmentActivity.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 The CyanogenMod Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.cyanogenmod.settings.device;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.preference.ListPreference;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceFragment;
+import android.preference.PreferenceManager;
+import android.preference.PreferenceScreen;
+import android.util.Log;
+
+import com.cyanogenmod.settings.device.R;
+
+public class OverClockFragmentActivity extends PreferenceFragment {
+
+    private static final String PREF_ENABLED = "1";
+    private static final String TAG = "GNexParts_OverClock";
+
+    private ListPreference mGpuOverclock;
+    private ListPreference mTouchscreenClock;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        addPreferencesFromResource(R.xml.overclock_preferences);
+
+        PreferenceScreen prefSet = getPreferenceScreen();
+
+        mGpuOverclock = (ListPreference) findPreference(DeviceSettings.KEY_GPU_OVERCLOCK);
+        mGpuOverclock.setEnabled(GpuOverclock.isSupported());
+        mGpuOverclock.setOnPreferenceChangeListener(new GpuOverclock());
+        GpuOverclock.updateSummary(mGpuOverclock, Integer.parseInt(mGpuOverclock.getValue()));
+
+    }
+
+    public static void restore(Context context) {
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
+    }
+}
diff --git a/GNexusParts/src/com/cyanogenmod/settings/device/Startup.java b/GNexusParts/src/com/cyanogenmod/settings/device/Startup.java
index ba4aeee..8cca2da 100644
--- a/GNexusParts/src/com/cyanogenmod/settings/device/Startup.java
+++ b/GNexusParts/src/com/cyanogenmod/settings/device/Startup.java
@@ -12,6 +12,7 @@ public class Startup extends BroadcastReceiver {
         GammaTuningPreference.restore(context);
         GeneralFragmentActivity.restore(context);
         VibratorTuningPreference.restore(context);
+        GpuOverclock.restore(context);
         if (Hspa.isSupported()) {
             Hspa.restore(context);
         }