@Override
public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences, String key) {
if (doneLoading) {
if (key.equals(KEY_MAX_CPU)) {
final String value = preferences.getString(key, null);
final String maxInMhz = (Integer.toString((Integer.parseInt(value) / 1000)) + " MHz");
if (!sendCpu(key, value, MAX_FREQ))
Helpers.sendMsg(getApplicationContext(), getString(R.string.toast_min_max_error01));
else mMaxCpu.setSummary(getString(R.string.ps_set_max, maxInMhz));
} else if (key.equals(KEY_MIN_CPU)) {
final String value = preferences.getString(key, null);
final String minInMhz = (Integer.toString((Integer.parseInt(value) / 1000)) + " MHz");
if (!sendCpu(key, value, MIN_FREQ))
Helpers.sendMsg(getApplicationContext(), getString(R.string.toast_min_max_error02));
else mMinCpu.setSummary(getString(R.string.ps_set_min, minInMhz));
} else if (key.equals(KEY_GOV)) {
final String value = preferences.getString(key, null);
if ((new CMDProcessor().su.runWaitFor("busybox echo " + value + " > " + CUR_GOV)).success())
mSetGov.setSummary(getString(R.string.ps_set_gov, value));
} else if (key.equals(KEY_MINFREE)) {
String values = preferences.getString(key, null);
if (!values.equals(null))
new CMDProcessor().su.runWaitFor("busybox echo " + values + " > " + MINFREE);
mFreeMem.setSummary(getString(R.string.ps_free_memory, getMinFreeValue() + "mb"));
}
}
}
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
preferences = PreferenceManager.getDefaultSharedPreferences(this);
super.onCreate(savedInstanceState);
preferences.registerOnSharedPreferenceChangeListener(this);
addPreferencesFromResource(R.xml.performance);
final int frequencies[] = getFrequencies();
final String freqList[] = getMHz(frequencies);
final String freqValues[] = getValues(frequencies);
final String maxFreq = (Helpers.getFile(MAX_FREQ).trim());
final String minFreq = (Helpers.getFile(MIN_FREQ).trim());
final String maxInMhz = (Integer.toString((Integer.parseInt(maxFreq) / 1000)) + " MHz");
final String minInMhz = (Integer.toString((Integer.parseInt(minFreq) / 1000)) + " MHz");
final String govs[] = getAllGovs();
final String currentGov = (Helpers.getFile(CUR_GOV).trim());
mMaxCpu = (ListPreference) findPreference(KEY_MAX_CPU);
mMaxCpu.setEntries(freqList);
mMaxCpu.setEntryValues(freqValues);
mMaxCpu.setValue(maxFreq);
mMaxCpu.setSummary(getString(R.string.ps_set_max, maxInMhz));
mMinCpu = (ListPreference) findPreference(KEY_MIN_CPU);
mMinCpu.setEntries(freqList);
mMinCpu.setEntryValues(freqValues);
mMinCpu.setValue(minFreq);
mMinCpu.setSummary(getString(R.string.ps_set_min, minInMhz));
mSetGov = (ListPreference) findPreference(KEY_GOV);
mSetGov.setEntries(govs);
mSetGov.setEntryValues(govs);
mSetGov.setValue(currentGov);
mSetGov.setSummary(getString(R.string.ps_set_gov, currentGov));
final int minFree = getMinFreeValue();
final String values[] = getResources().getStringArray(R.array.minfree_values);
String closestValue = preferences.getString(KEY_MINFREE, values[0]);
if (minFree < 37) closestValue = values[0];
else if (minFree < 62) closestValue = values[1];
else if (minFree < 77) closestValue = values[2];
else if (minFree < 90) closestValue = values[3];
else closestValue = values[4];
mFreeMem = (ListPreference) findPreference(KEY_MINFREE);
mFreeMem.setValue(closestValue);
mFreeMem.setSummary(getString(R.string.ps_free_memory, minFree + "mb"));
PreferenceScreen ps = (PreferenceScreen) findPreference("volt_control");
if (!new File(VoltageControlActivity.MV_TABLE0).exists()) {
((PreferenceCategory) getPreferenceScreen().findPreference("cpu")).removePreference(ps);
}
doneLoading = true;
}
static int[] getFrequencies() {
String freqs = Helpers.getFile(STEPS);
if (freqs != null && freqs != "") {
String[] freqList = freqs.trim().split("[ \n]+");
SPEED_STEPS = new int[freqList.length];
for (int i = 0; i < freqList.length; i++) {
SPEED_STEPS[i] = (Integer.parseInt(freqList[i]));
}
} else {
CMDProcessor cmd = new CMDProcessor();
CMDProcessor.CommandResult r =
cmd.su.runWaitFor(
"busybox cut -d ' ' -f1 /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state");
freqs = r.stdout;
if (freqs != null && freqs != "") {
String[] freqList = freqs.trim().split("[ \n]+");
SPEED_STEPS = new int[freqList.length];
for (int i = 0; i < freqList.length; i++) {
SPEED_STEPS[i] = (Integer.parseInt(freqList[i]));
}
} else {
SPEED_STEPS = new int[] {1000000, 800000, 600000, 300000};
Log.d(TAG, "Failed getting steps");
}
}
return SPEED_STEPS;
}
public static String[] getAllGovs() {
String govs = Helpers.getFile(GETALL_GOV);
if (govs != null && govs != "") {
String[] govList = govs.trim().split(" ");
ALL_GOV = new String[govList.length];
for (int i = 0; i < govList.length; i++) {
ALL_GOV[i] = govList[i];
}
} else {
ALL_GOV = new String[] {"ondemand", "userspace", "performance"};
}
return ALL_GOV;
}
private static boolean sendCpu(final String key, final String value, final String fname) {
final int maxCpu = Integer.parseInt((Helpers.getFile(MAX_FREQ).trim()));
final int minCpu = Integer.parseInt((Helpers.getFile(MIN_FREQ).trim()));
final int newCpu = Integer.parseInt(value);
final CMDProcessor cmd = new CMDProcessor();
Boolean isOk = true;
String goodCpu = value;
if (key.equals(KEY_MAX_CPU)) {
if (newCpu < minCpu) {
isOk = false;
goodCpu = Integer.toString(maxCpu);
}
} else if (key.equals(KEY_MIN_CPU)) {
if (newCpu > maxCpu) {
isOk = false;
goodCpu = Integer.toString(minCpu);
}
}
if (isOk) {
cmd.su.runWaitFor("busybox echo " + value + " > " + fname);
if (new File("/sys/devices/system/cpu/cpu1").isDirectory()) {
String cpu1 = fname.replace("cpu0", "cpu1");
cmd.su.runWaitFor("busybox echo " + value + " > " + cpu1);
}
} else {
final SharedPreferences.Editor editor = preferences.edit();
editor.putString(key, goodCpu);
editor.commit();
if (key.equals(KEY_MAX_CPU)) mMaxCpu.setValue(goodCpu);
else if (key.equals(KEY_MIN_CPU)) mMinCpu.setValue(goodCpu);
}
return isOk;
}
private static int getMinFreeValue() {
int emptyApp = 0;
String MINFREE_LINE = Helpers.getFile(MINFREE);
String EMPTY_APP = MINFREE_LINE.substring(MINFREE_LINE.lastIndexOf(",") + 1);
if (!EMPTY_APP.equals(null) || !EMPTY_APP.equals("")) {
try {
int mb = Integer.parseInt(EMPTY_APP.trim()) * 4 / 1024;
emptyApp = (int) Math.ceil(mb);
} catch (NumberFormatException nfe) {
Log.i(TAG, "error processing " + EMPTY_APP);
}
}
return emptyApp;
}