]> git.zerfleddert.de Git - ms2-fixes/blob - MS2Debounce/src/de/rmdir/ms2debounce/DebounceModuleHelper.java
6a46fbb3e6ebd3a46866a75d73c5495cea6a3f76
[ms2-fixes] / MS2Debounce / src / de / rmdir / ms2debounce / DebounceModuleHelper.java
1 package de.rmdir.ms2debounce;
2
3 import java.io.InputStream;
4 import java.io.OutputStream;
5 import java.io.File;
6 import java.io.FileReader;
7 import java.io.FileWriter;
8 import java.io.BufferedReader;
9 import java.io.BufferedWriter;
10 import java.io.DataOutputStream;
11
12 import android.content.Context;
13 import android.content.SharedPreferences;
14
15 public class DebounceModuleHelper
16 {
17 private Context ctx;
18 public static final String PREFS_NAME = "DebounceCfg";
19 final int SUPERUSER_REQUEST = 4223;
20
21 public DebounceModuleHelper(Context context) {
22 ctx = context;
23 }
24
25 public void setAllValues() {
26 setDelay(getSavedDelay());
27 setSettle(getSavedSettle());
28 setPoll(getSavedPoll());
29 }
30
31 public void loadModule() {
32 _loadModule();
33 setAllValues();
34 }
35
36 protected void runAsRoot(String command) throws java.io.IOException,java.lang.InterruptedException {
37 Process rootcmd = Runtime.getRuntime().exec(new String[]{"su","-c","sh"});
38 DataOutputStream sh = new DataOutputStream(rootcmd.getOutputStream());
39 sh.writeBytes(command + "\n");
40 sh.writeBytes("exit\n");
41 sh.flush();
42 sh.close();
43
44 rootcmd.waitFor();
45 }
46
47 public synchronized void _loadModule() {
48 File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
49
50 extractModule();
51
52 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
53 SharedPreferences.Editor editor = settings.edit();
54 if (is_safe_to_load()) {
55 editor.putBoolean("safe_to_load", false);
56 editor.commit();
57 }
58
59 try {
60 runAsRoot("/system/bin/insmod " + debounce_ko);
61 } catch (Exception e) {
62 return;
63 }
64
65 if (!isLoaded()) {
66 return;
67 }
68
69 if (getDelay() < 0) {
70 return;
71 }
72
73 /* Module was obviously loaded, so it is safe to load on boot */
74 editor.putBoolean("safe_to_load", true);
75 editor.commit();
76 }
77
78 public synchronized void unloadModule() {
79 try {
80 runAsRoot("/system/bin/rmmod debounce");
81 } catch (Exception e) {}
82 }
83
84 public synchronized boolean isLoaded() {
85 boolean loaded = false;
86 try {
87 String read;
88
89 FileReader modules = new FileReader("/proc/modules");
90 BufferedReader modules_buf = new BufferedReader(modules);
91
92 while((read = modules_buf.readLine()) != null) {
93 if (read.regionMatches(0, "debounce", 0, 8)) {
94 loaded = true;
95 }
96 }
97
98 } catch (Exception e) {
99 loaded = false;
100 }
101
102 return loaded;
103 }
104
105 private synchronized int getValue(String parameter) {
106 int value = -1;
107
108 try {
109 String read;
110
111 FileReader fr = new FileReader("/sys/devices/debounce/" + parameter);
112 BufferedReader fbuf = new BufferedReader(fr);
113
114 read = fbuf.readLine();
115 if (read != null) {
116 value = Integer.parseInt(read.trim());
117 }
118
119 fbuf.close();
120 } catch (Exception e) {}
121
122 return value;
123 }
124
125 private synchronized void setValue(String parameter, int value) {
126 if (!isLoaded()) {
127 return;
128 }
129
130 try {
131 FileWriter fw = new FileWriter("/sys/devices/debounce/" + parameter);
132 BufferedWriter fbuf = new BufferedWriter(fw);
133
134 fbuf.write((new Integer(value)).toString());
135
136 fbuf.close();
137 } catch (Exception e) {}
138 }
139
140 public synchronized int getDelay() {
141 return getValue("debounce_delay");
142 }
143
144 public synchronized void setDelay(int debounce_delay) {
145 setValue("debounce_delay", debounce_delay);
146 }
147
148 public synchronized int getSettle() {
149 return getValue("settle_time");
150 }
151
152 public synchronized void setSettle(int settle_time) {
153 setValue("settle_time", settle_time);
154 }
155
156 public synchronized int getPoll() {
157 return getValue("poll_time");
158 }
159
160 public synchronized void setPoll(int poll_time) {
161 setValue("poll_time", poll_time);
162 }
163
164 public synchronized int getSavedDelay() {
165 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
166
167 return settings.getInt("debounce_delay", 8);
168 }
169
170 public synchronized void setSavedDelay(int delay) {
171 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
172 SharedPreferences.Editor editor = settings.edit();
173
174 editor.putInt("debounce_delay", delay);
175 editor.commit();
176 }
177
178 public synchronized int getSavedSettle() {
179 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
180
181 return settings.getInt("settle_time", 100);
182 }
183
184 public synchronized void setSavedSettle(int settle) {
185 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
186 SharedPreferences.Editor editor = settings.edit();
187
188 editor.putInt("settle_time", settle);
189 editor.commit();
190 }
191
192 public synchronized int getSavedPoll() {
193 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
194
195 return settings.getInt("poll_time", 10);
196 }
197
198 public synchronized void setSavedPoll(int poll) {
199 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
200 SharedPreferences.Editor editor = settings.edit();
201
202 editor.putInt("poll_time", poll);
203 editor.commit();
204 }
205
206 public synchronized boolean is_safe_to_load() {
207 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
208 return settings.getBoolean("safe_to_load", false);
209 }
210
211 public synchronized boolean get_on_boot() {
212 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
213 return settings.getBoolean("on_boot", false);
214 }
215
216 public synchronized void set_on_boot(boolean on_boot) {
217 SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
218 SharedPreferences.Editor editor = settings.edit();
219
220 editor.putBoolean("on_boot", on_boot);
221 editor.commit();
222 }
223
224 private synchronized void extractModule() {
225 File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko");
226
227 if (debounce_ko.exists()) {
228 return;
229 }
230
231 try {
232 InputStream apk = ctx.getAssets().open("debounce.ko");
233 OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0);
234
235 //I assume a page is 4k...
236 byte buf[] = new byte[4096];
237 int bytes;
238
239 while((bytes = apk.read(buf)) != -1) {
240 mod.write(buf, 0, bytes);
241 }
242
243 apk.close();
244 mod.close();
245
246 File tmpfile = new File(debounce_ko + ".tmp");
247 tmpfile.renameTo(debounce_ko);
248 } catch (Exception e) {}
249 }
250 }
Impressum, Datenschutz