1 files changed, 61 insertions, 0 deletions
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..9dba113
--- /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(DevicePreferenceActivity.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());
+    }
+}