forked from kmobs/android_packages_apps_CMParts
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
CPU frequencies and governor control via CMParts
CPUSettings will be restored on boot when "Set on boot" is checked. Change-Id: I83805cee8537c5d34a0284fc6e93af0003751bee
- Loading branch information
1 parent
d2ec209
commit c5f4243
Showing
7 changed files
with
321 additions
and
4 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"> | ||
|
|
||
| <ListPreference android:key="pref_cpu_gov" android:dialogTitle="Available governors" | ||
| android:title="Available governors" /> | ||
|
|
||
| <ListPreference android:key="pref_freq_min" android:dialogTitle="Min CPU frequency" | ||
| android:title="Min CPU frequency" android:summary="Minimum CPU frequency" /> | ||
|
|
||
| <ListPreference android:key="pref_freq_max" android:dialogTitle="Max CPU frequency" | ||
| android:title="Max CPU frequency" android:summary="Maximum CPU frequency" /> | ||
|
|
||
| <CheckBoxPreference android:key="pref_set_on_boot" | ||
| android:title="@string/cpu_set_on_boot" android:summary="@string/cpu_set_on_boot_summary"/> | ||
|
|
||
| </PreferenceScreen> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
181 changes: 181 additions & 0 deletions
181
src/com/cyanogenmod/cmparts/activities/CPUActivity.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| package com.cyanogenmod.cmparts.activities; | ||
|
|
||
| import com.cyanogenmod.cmparts.R; | ||
|
|
||
| import android.os.Bundle; | ||
| import android.preference.ListPreference; | ||
| import android.preference.Preference; | ||
| import android.preference.PreferenceActivity; | ||
| import android.preference.PreferenceScreen; | ||
| import android.util.Log; | ||
|
|
||
| import java.io.BufferedReader; | ||
| import java.io.BufferedWriter; | ||
| import java.io.FileReader; | ||
| import java.io.FileWriter; | ||
| import java.io.IOException; | ||
| import java.lang.Process; | ||
|
|
||
| // | ||
| // CPU Related Settings | ||
| // | ||
| public class CPUActivity extends PreferenceActivity implements Preference.OnPreferenceChangeListener { | ||
|
|
||
| public static final String GOV_PREF = "pref_cpu_gov"; | ||
| public static final String GOVERNORS_LIST_FILE = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"; | ||
| public static final String GOVERNOR = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"; | ||
|
|
||
| public static final String MIN_FREQ_PREF = "pref_freq_min"; | ||
| public static final String MAX_FREQ_PREF = "pref_freq_max"; | ||
| public static final String FREQ_LIST_FILE = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies"; | ||
| public static final String FREQ_MAX_FILE = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq"; | ||
| public static final String FREQ_MIN_FILE = "/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq"; | ||
| public static final String SOB_PREF = "pref_set_on_boot"; | ||
| private static final String TAG = "CPUSettings"; | ||
| private String GOV_FMT; | ||
| private String MIN_FMT; | ||
| private String MAX_FMT; | ||
|
|
||
| private ListPreference govPref; | ||
| private ListPreference minFreqPref; | ||
| private ListPreference maxFreqPref; | ||
|
|
||
| @Override | ||
| protected void onCreate(Bundle savedInstanceState) { | ||
| super.onCreate(savedInstanceState); | ||
|
|
||
| GOV_FMT = getString(R.string.cpu_governors_list); | ||
| MIN_FMT = getString(R.string.cpu_min_freq); | ||
| MAX_FMT = getString(R.string.cpu_max_freq); | ||
|
|
||
| String[] Governors = readOneLine(GOVERNORS_LIST_FILE).split(" "); | ||
| String[] FreqValues = readOneLine(FREQ_LIST_FILE).split(" "); | ||
| String[] Freqs; | ||
| String temp; | ||
|
|
||
| Freqs = new String[FreqValues.length]; | ||
| for(int i=0; i <Freqs.length; i++) { | ||
| Freqs[i] = MHerzed(FreqValues[i]); | ||
| } | ||
|
|
||
| setTitle(R.string.cpu_title); | ||
| addPreferencesFromResource(R.xml.cpu_settings); | ||
|
|
||
| PreferenceScreen PrefScreen = getPreferenceScreen(); | ||
|
|
||
| temp = readOneLine(GOVERNOR); | ||
|
|
||
| govPref = (ListPreference) PrefScreen.findPreference(GOV_PREF); | ||
| govPref.setEntryValues(Governors); | ||
| govPref.setEntries(Governors); | ||
| govPref.setValue(temp); | ||
| govPref.setSummary(String.format(GOV_FMT, temp)); | ||
| govPref.setOnPreferenceChangeListener(this); | ||
|
|
||
| temp = readOneLine(FREQ_MIN_FILE); | ||
|
|
||
| minFreqPref = (ListPreference) PrefScreen.findPreference(MIN_FREQ_PREF); | ||
| minFreqPref.setEntryValues(FreqValues); | ||
| minFreqPref.setEntries(Freqs); | ||
| minFreqPref.setValue(temp); | ||
| minFreqPref.setSummary(String.format(MIN_FMT, MHerzed(temp))); | ||
| minFreqPref.setOnPreferenceChangeListener(this); | ||
|
|
||
| temp = readOneLine(FREQ_MAX_FILE); | ||
|
|
||
| maxFreqPref = (ListPreference) PrefScreen.findPreference(MAX_FREQ_PREF); | ||
| maxFreqPref.setEntryValues(FreqValues); | ||
| maxFreqPref.setEntries(Freqs); | ||
| maxFreqPref.setValue(temp); | ||
| maxFreqPref.setSummary(String.format(MAX_FMT, MHerzed(temp))); | ||
| maxFreqPref.setOnPreferenceChangeListener(this); | ||
| } | ||
|
|
||
| @Override | ||
| public void onResume() { | ||
| String temp; | ||
|
|
||
| super.onResume(); | ||
|
|
||
| temp = readOneLine(FREQ_MAX_FILE); | ||
| maxFreqPref.setValue(temp); | ||
| maxFreqPref.setSummary(String.format(MAX_FMT, MHerzed(temp))); | ||
|
|
||
| temp = readOneLine(FREQ_MIN_FILE); | ||
| minFreqPref.setValue(temp); | ||
| minFreqPref.setSummary(String.format(MIN_FMT, MHerzed(temp))); | ||
|
|
||
| temp = readOneLine(GOVERNOR); | ||
| govPref.setSummary(String.format(GOV_FMT, temp)); | ||
| } | ||
|
|
||
| public boolean onPreferenceChange(Preference preference, Object newValue) { | ||
| String fname = ""; | ||
|
|
||
| if (newValue != null) { | ||
| if (preference == govPref) { | ||
| fname = GOVERNOR; | ||
| } else if (preference == minFreqPref) { | ||
| fname = FREQ_MIN_FILE; | ||
| } else if (preference == maxFreqPref) { | ||
| fname = FREQ_MAX_FILE; | ||
| } | ||
|
|
||
| if (writeOneLine(fname, (String) newValue)) { | ||
| if (preference == govPref) { | ||
| govPref.setSummary(String.format(GOV_FMT, (String) newValue)); | ||
| } else if (preference == minFreqPref) { | ||
| minFreqPref.setSummary(String.format(MIN_FMT, MHerzed((String) newValue))); | ||
| } else if (preference == maxFreqPref) { | ||
| maxFreqPref.setSummary(String.format(MAX_FMT, MHerzed((String) newValue))); | ||
| } | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| public static String readOneLine(String fname) { | ||
| BufferedReader br; | ||
| String line = null; | ||
|
|
||
| try { | ||
| br = new BufferedReader (new FileReader(fname), 512); | ||
| try { | ||
| line = br.readLine(); | ||
| } finally { | ||
| br.close(); | ||
| } | ||
| } catch (Exception e) { | ||
| Log.e(TAG, "IO Exception when reading /sys/ file", e); | ||
| } | ||
| return line; | ||
| } | ||
|
|
||
| public static boolean writeOneLine(String fname, String value) { | ||
| try { | ||
| FileWriter fw = new FileWriter(fname); | ||
| try { | ||
| fw.write(value); | ||
| } finally { | ||
| fw.close(); | ||
| } | ||
| } catch(IOException e) { | ||
| String Error = "Error writing to " + fname + ". Exception: "; | ||
| Log.e(TAG, Error, e); | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
|
|
||
| private String MHerzed(String str) { | ||
| String temp; | ||
|
|
||
| temp = str.substring(0, str.length() - 3); | ||
|
|
||
| return (temp + " MHz"); | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| package com.cyanogenmod.cmparts.intents; | ||
|
|
||
| import android.content.BroadcastReceiver; | ||
| import android.content.ComponentName; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.os.SystemProperties; | ||
|
|
||
| public class CPUReceiver extends BroadcastReceiver { | ||
|
|
||
| private static final String CPU_SETTINGS_PROP = "sys.cpufreq.restored"; | ||
|
|
||
| @Override | ||
| public void onReceive(Context ctx, Intent intent) { | ||
| if (SystemProperties.getBoolean(CPU_SETTINGS_PROP, false) == false && | ||
| intent.getAction().equals(Intent.ACTION_MEDIA_MOUNTED)) { | ||
| SystemProperties.set(CPU_SETTINGS_PROP, "true"); | ||
| ComponentName cmp = new ComponentName(ctx.getPackageName(), | ||
| com.cyanogenmod.cmparts.services.CPUService.class.getName()); | ||
| ctx.startService(new Intent().setComponent(cmp)); | ||
| } else { | ||
| SystemProperties.set(CPU_SETTINGS_PROP,"false"); | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package com.cyanogenmod.cmparts.services; | ||
|
|
||
| import android.app.Service; | ||
| import android.content.Context; | ||
| import android.content.Intent; | ||
| import android.os.Environment; | ||
| import android.os.IBinder; | ||
| import android.content.SharedPreferences; | ||
| import android.preference.PreferenceManager; | ||
| import android.util.Log; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.List; | ||
|
|
||
| import com.cyanogenmod.cmparts.activities.CPUActivity; | ||
|
|
||
| public class CPUService extends Service { | ||
|
|
||
| private static final String TAG = "CPUSettings"; | ||
|
|
||
| @Override | ||
| public IBinder onBind(Intent intent) { | ||
| return null; | ||
| } | ||
|
|
||
|
|
||
| @Override | ||
| public void onCreate() { | ||
|
|
||
| SharedPreferences mPrefs = PreferenceManager.getDefaultSharedPreferences(this); | ||
|
|
||
| if (mPrefs.getBoolean(CPUActivity.SOB_PREF, false) == false) { | ||
| Log.i(TAG, "Restore disabled by user preference."); | ||
| return; | ||
| } | ||
|
|
||
| String mGov = mPrefs.getString(CPUActivity.GOV_PREF, null); | ||
| String mMinFreq = mPrefs.getString(CPUActivity.MIN_FREQ_PREF, null); | ||
| String mMaxFreq = mPrefs.getString(CPUActivity.MAX_FREQ_PREF, null); | ||
| boolean noSettings = (mGov==null) && (mMinFreq==null) && (mMaxFreq==null); | ||
|
|
||
| if (noSettings) { | ||
| Log.i(TAG, "No settings saved. Nothing to restore."); | ||
| } else { | ||
| List GovLst = Arrays.asList( | ||
| CPUActivity.readOneLine(CPUActivity.GOVERNORS_LIST_FILE).split(" ")); | ||
| List FreqLst = Arrays.asList( | ||
| CPUActivity.readOneLine(CPUActivity.FREQ_LIST_FILE).split(" ")); | ||
| if (mGov != null && GovLst.contains(mGov)) { | ||
| CPUActivity.writeOneLine(CPUActivity.GOVERNOR, mGov); | ||
| } | ||
| if (mMaxFreq != null && FreqLst.contains(mMaxFreq)) { | ||
| CPUActivity.writeOneLine(CPUActivity.FREQ_MAX_FILE, mMaxFreq); | ||
| } | ||
| if (mMinFreq != null && FreqLst.contains(mMinFreq)) { | ||
| CPUActivity.writeOneLine(CPUActivity.FREQ_MIN_FILE, mMinFreq); | ||
| } | ||
| Log.i(TAG, "CPU Settings restored."); | ||
| } | ||
| return; | ||
| } | ||
| } |