import java.io.InputStream;
import java.io.OutputStream;
import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.DataOutputStream;
import android.content.Context;
+import android.content.SharedPreferences;
public class DebounceModuleHelper
{
private Context ctx;
+ public static final String PREFS_NAME = "DebounceCfg";
+ final int SUPERUSER_REQUEST = 4223;
public DebounceModuleHelper(Context context) {
ctx = context;
}
+ public void setAllValues() {
+ setDelay(getSavedDelay());
+ setSettle(getSavedSettle());
+ setPoll(getSavedPoll());
+ }
+
public void loadModule() {
+ _loadModule();
+ setAllValues();
+ }
+
+ protected void runAsRoot(String command) throws java.io.IOException,java.lang.InterruptedException {
+ Process rootcmd = Runtime.getRuntime().exec(new String[]{"su","-c","sh"});
+ DataOutputStream sh = new DataOutputStream(rootcmd.getOutputStream());
+ sh.writeBytes(command + "\n");
+ sh.writeBytes("exit\n");
+ sh.flush();
+ sh.close();
+
+ rootcmd.waitFor();
+ }
+
+ public synchronized void _loadModule() {
+ File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
+
extractModule();
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();
+ if (is_safe_to_load()) {
+ editor.putBoolean("safe_to_load", false);
+ editor.commit();
+ }
+
+ try {
+ runAsRoot("/system/bin/insmod " + debounce_ko);
+ } catch (Exception e) {
+ return;
+ }
+
+ if (!isLoaded()) {
+ return;
+ }
+
+ if (getDelay() < 0) {
+ return;
+ }
+
+ /* Module was obviously loaded, so it is safe to load on boot */
+ editor.putBoolean("safe_to_load", true);
+ editor.commit();
+ }
+
+ public synchronized void unloadModule() {
try {
- Process insmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/insmod /system/lib/modules/debounce.ko"});
- insmod.waitFor();
+ runAsRoot("/system/bin/rmmod debounce");
} catch (Exception e) {}
}
- public boolean isLoaded() {
- return false;
+ public synchronized boolean isLoaded() {
+ boolean loaded = false;
+ try {
+ String read;
+
+ FileReader modules = new FileReader("/proc/modules");
+ BufferedReader modules_buf = new BufferedReader(modules);
+
+ while((read = modules_buf.readLine()) != null) {
+ if (read.regionMatches(0, "debounce", 0, 8)) {
+ loaded = true;
+ }
+ }
+
+ } catch (Exception e) {
+ loaded = false;
+ }
+
+ return loaded;
+ }
+
+ private synchronized int getValue(String parameter) {
+ int value = -1;
+
+ try {
+ String read;
+
+ FileReader fr = new FileReader("/sys/devices/debounce/" + parameter);
+ BufferedReader fbuf = new BufferedReader(fr);
+
+ read = fbuf.readLine();
+ if (read != null) {
+ value = Integer.parseInt(read.trim());
+ }
+
+ fbuf.close();
+ } catch (Exception e) {}
+
+ return value;
+ }
+
+ private synchronized void setValue(String parameter, int value) {
+ if (!isLoaded()) {
+ return;
+ }
+
+ try {
+ FileWriter fw = new FileWriter("/sys/devices/debounce/" + parameter);
+ BufferedWriter fbuf = new BufferedWriter(fw);
+
+ fbuf.write((new Integer(value)).toString());
+
+ fbuf.close();
+ } catch (Exception e) {}
+ }
+
+ public synchronized int getDelay() {
+ return getValue("debounce_delay");
+ }
+
+ public synchronized void setDelay(int debounce_delay) {
+ setValue("debounce_delay", debounce_delay);
+ }
+
+ public synchronized int getSettle() {
+ return getValue("settle_time");
+ }
+
+ public synchronized void setSettle(int settle_time) {
+ setValue("settle_time", settle_time);
+ }
+
+ public synchronized int getPoll() {
+ return getValue("poll_time");
+ }
+
+ public synchronized void setPoll(int poll_time) {
+ setValue("poll_time", poll_time);
+ }
+
+ public synchronized int getSavedDelay() {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+
+ return settings.getInt("debounce_delay", 8);
+ }
+
+ public synchronized void setSavedDelay(int delay) {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();
+
+ editor.putInt("debounce_delay", delay);
+ editor.commit();
+ }
+
+ public synchronized int getSavedSettle() {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+
+ return settings.getInt("settle_time", 150);
+ }
+
+ public synchronized void setSavedSettle(int settle) {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();
+
+ editor.putInt("settle_time", settle);
+ editor.commit();
+ }
+
+ public synchronized int getSavedPoll() {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+
+ return settings.getInt("poll_time", 10);
+ }
+
+ public synchronized void setSavedPoll(int poll) {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();
+
+ editor.putInt("poll_time", poll);
+ editor.commit();
+ }
+
+ public synchronized boolean is_safe_to_load() {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ return settings.getBoolean("safe_to_load", false);
+ }
+
+ public synchronized boolean get_on_boot() {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ return settings.getBoolean("on_boot", false);
+ }
+
+ public synchronized void set_on_boot(boolean on_boot) {
+ SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+ SharedPreferences.Editor editor = settings.edit();
+
+ editor.putBoolean("on_boot", on_boot);
+ editor.commit();
}
private synchronized void extractModule() {
try {
InputStream apk = ctx.getAssets().open("debounce.ko");
- OutputStream mod = ctx.openFileOutput("debounce.ko", 0);
+ OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0);
+
+ //I assume a page is 4k...
+ byte buf[] = new byte[4096];
+ int bytes;
+
+ while((bytes = apk.read(buf)) != -1) {
+ mod.write(buf, 0, bytes);
+ }
apk.close();
mod.close();
+
+ File tmpfile = new File(debounce_ko + ".tmp");
+ tmpfile.renameTo(debounce_ko);
} catch (Exception e) {}
}
}
projects / ms2-fixes / blobdiff