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Commit | Line | Data |
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0ae502f6 MG |
1 | package de.rmdir.ms2debounce; |
2 | ||
5738a32f MG |
3 | import java.io.InputStream; |
4 | import java.io.OutputStream; | |
226a7d4d | 5 | import java.io.File; |
d82ae589 | 6 | import java.io.FileReader; |
0b9d6422 | 7 | import java.io.FileWriter; |
d82ae589 | 8 | import java.io.BufferedReader; |
0b9d6422 | 9 | import java.io.BufferedWriter; |
6bb245ae | 10 | import java.io.DataOutputStream; |
226a7d4d | 11 | |
5738a32f | 12 | import android.content.Context; |
08fec0be | 13 | import android.content.SharedPreferences; |
5738a32f | 14 | |
0ae502f6 MG |
15 | public class DebounceModuleHelper |
16 | { | |
5738a32f | 17 | private Context ctx; |
08fec0be | 18 | public static final String PREFS_NAME = "DebounceCfg"; |
6bb245ae | 19 | final int SUPERUSER_REQUEST = 4223; |
226a7d4d | 20 | |
5738a32f MG |
21 | public DebounceModuleHelper(Context context) { |
22 | ctx = context; | |
226a7d4d MG |
23 | } |
24 | ||
25 | public void loadModule() { | |
0b9d6422 MG |
26 | _loadModule(); |
27 | setDelay(getSavedDelay()); | |
75fbc6ef MG |
28 | setSettle(getSavedSettle()); |
29 | setPoll(getSavedPoll()); | |
40697a47 MG |
30 | } |
31 | ||
6bb245ae MG |
32 | protected void runAsRoot(String command) throws java.io.IOException,java.lang.InterruptedException { |
33 | Process rootcmd = Runtime.getRuntime().exec(new String[]{"su","-c","sh"}); | |
34 | DataOutputStream sh = new DataOutputStream(rootcmd.getOutputStream()); | |
35 | sh.writeBytes(command + "\n"); | |
36 | sh.writeBytes("exit\n"); | |
37 | sh.flush(); | |
38 | sh.close(); | |
39 | ||
40 | rootcmd.waitFor(); | |
41 | } | |
42 | ||
0b9d6422 | 43 | public synchronized void _loadModule() { |
40697a47 MG |
44 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); |
45 | ||
226a7d4d MG |
46 | extractModule(); |
47 | ||
d3e7b10c MG |
48 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); |
49 | SharedPreferences.Editor editor = settings.edit(); | |
50 | if (is_safe_to_load()) { | |
51 | editor.putBoolean("safe_to_load", false); | |
52 | editor.commit(); | |
53 | } | |
40697a47 | 54 | |
0ae502f6 | 55 | try { |
0b9d6422 | 56 | runAsRoot("/system/bin/insmod " + debounce_ko); |
08fec0be MG |
57 | } catch (Exception e) { |
58 | return; | |
a6cf1017 MG |
59 | } |
60 | ||
61 | if (!isLoaded()) { | |
62 | return; | |
08fec0be | 63 | } |
dea0f4b0 | 64 | |
818fb327 | 65 | if (getDelay() < 0) { |
08fec0be MG |
66 | return; |
67 | } | |
68 | ||
69 | /* Module was obviously loaded, so it is safe to load on boot */ | |
d3e7b10c MG |
70 | editor.putBoolean("safe_to_load", true); |
71 | editor.commit(); | |
0ae502f6 MG |
72 | } |
73 | ||
08fec0be | 74 | public synchronized void unloadModule() { |
40697a47 | 75 | try { |
6bb245ae | 76 | runAsRoot("/system/bin/rmmod debounce"); |
40697a47 MG |
77 | } catch (Exception e) {} |
78 | } | |
79 | ||
08fec0be | 80 | public synchronized boolean isLoaded() { |
d82ae589 MG |
81 | boolean loaded = false; |
82 | try { | |
83 | String read; | |
84 | ||
85 | FileReader modules = new FileReader("/proc/modules"); | |
86 | BufferedReader modules_buf = new BufferedReader(modules); | |
87 | ||
88 | while((read = modules_buf.readLine()) != null) { | |
89 | if (read.regionMatches(0, "debounce", 0, 8)) { | |
90 | loaded = true; | |
91 | } | |
92 | } | |
93 | ||
94 | } catch (Exception e) { | |
95 | loaded = false; | |
96 | } | |
97 | ||
98 | return loaded; | |
0ae502f6 | 99 | } |
226a7d4d | 100 | |
75fbc6ef MG |
101 | private synchronized int getValue(String parameter) { |
102 | int value = -1; | |
d82ae589 MG |
103 | |
104 | try { | |
105 | String read; | |
106 | ||
75fbc6ef MG |
107 | FileReader fr = new FileReader("/sys/devices/debounce/" + parameter); |
108 | BufferedReader fbuf = new BufferedReader(fr); | |
d82ae589 | 109 | |
75fbc6ef | 110 | read = fbuf.readLine(); |
d82ae589 | 111 | if (read != null) { |
75fbc6ef | 112 | value = Integer.parseInt(read.trim()); |
d82ae589 | 113 | } |
0b9d6422 | 114 | |
75fbc6ef | 115 | fbuf.close(); |
d82ae589 MG |
116 | } catch (Exception e) {} |
117 | ||
75fbc6ef | 118 | return value; |
ee6322a1 MG |
119 | } |
120 | ||
75fbc6ef | 121 | private synchronized void setValue(String parameter, int value) { |
0b9d6422 MG |
122 | if (!isLoaded()) { |
123 | return; | |
376c6ac7 MG |
124 | } |
125 | ||
0b9d6422 | 126 | try { |
75fbc6ef MG |
127 | FileWriter fw = new FileWriter("/sys/devices/debounce/" + parameter); |
128 | BufferedWriter fbuf = new BufferedWriter(fw); | |
0b9d6422 | 129 | |
75fbc6ef | 130 | fbuf.write((new Integer(value)).toString()); |
0b9d6422 | 131 | |
75fbc6ef | 132 | fbuf.close(); |
0b9d6422 | 133 | } catch (Exception e) {} |
376c6ac7 MG |
134 | } |
135 | ||
75fbc6ef MG |
136 | public synchronized int getDelay() { |
137 | return getValue("debounce_delay"); | |
138 | } | |
139 | ||
140 | public synchronized void setDelay(int debounce_delay) { | |
141 | setValue("debounce_delay", debounce_delay); | |
142 | } | |
143 | ||
144 | public synchronized int getSettle() { | |
145 | return getValue("settle_time"); | |
146 | } | |
147 | ||
148 | public synchronized void setSettle(int settle_time) { | |
149 | setValue("settle_time", settle_time); | |
150 | } | |
151 | ||
152 | public synchronized int getPoll() { | |
153 | return getValue("poll_time"); | |
154 | } | |
155 | ||
156 | public synchronized void setPoll(int poll_time) { | |
157 | setValue("poll_time", poll_time); | |
158 | } | |
159 | ||
dea0f4b0 MG |
160 | public synchronized int getSavedDelay() { |
161 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
162 | ||
0b9d6422 | 163 | return settings.getInt("debounce_delay", 8); |
dea0f4b0 MG |
164 | } |
165 | ||
166 | public synchronized void setSavedDelay(int delay) { | |
167 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
168 | SharedPreferences.Editor editor = settings.edit(); | |
169 | ||
170 | editor.putInt("debounce_delay", delay); | |
171 | editor.commit(); | |
172 | } | |
173 | ||
75fbc6ef MG |
174 | public synchronized int getSavedSettle() { |
175 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
176 | ||
177 | return settings.getInt("settle_time", 100); | |
178 | } | |
179 | ||
180 | public synchronized void setSavedSettle(int settle) { | |
181 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
182 | SharedPreferences.Editor editor = settings.edit(); | |
183 | ||
184 | editor.putInt("settle_time", settle); | |
185 | editor.commit(); | |
186 | } | |
187 | ||
188 | public synchronized int getSavedPoll() { | |
189 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
190 | ||
191 | return settings.getInt("poll_time", 10); | |
192 | } | |
193 | ||
194 | public synchronized void setSavedPoll(int poll) { | |
195 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
196 | SharedPreferences.Editor editor = settings.edit(); | |
197 | ||
198 | editor.putInt("poll_time", poll); | |
199 | editor.commit(); | |
200 | } | |
201 | ||
08fec0be MG |
202 | public synchronized boolean is_safe_to_load() { |
203 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
c3053460 MG |
204 | return settings.getBoolean("safe_to_load", false); |
205 | } | |
206 | ||
207 | public synchronized boolean get_on_boot() { | |
208 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
209 | return settings.getBoolean("on_boot", false); | |
210 | } | |
08fec0be | 211 | |
c3053460 MG |
212 | public synchronized void set_on_boot(boolean on_boot) { |
213 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
214 | SharedPreferences.Editor editor = settings.edit(); | |
215 | ||
216 | editor.putBoolean("on_boot", on_boot); | |
217 | editor.commit(); | |
08fec0be MG |
218 | } |
219 | ||
5738a32f MG |
220 | private synchronized void extractModule() { |
221 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); | |
226a7d4d MG |
222 | |
223 | if (debounce_ko.exists()) { | |
224 | return; | |
225 | } | |
5738a32f MG |
226 | |
227 | try { | |
228 | InputStream apk = ctx.getAssets().open("debounce.ko"); | |
40697a47 MG |
229 | OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0); |
230 | ||
231 | //I assume a page is 4k... | |
232 | byte buf[] = new byte[4096]; | |
233 | int bytes; | |
234 | ||
235 | while((bytes = apk.read(buf)) != -1) { | |
236 | mod.write(buf, 0, bytes); | |
237 | } | |
5738a32f MG |
238 | |
239 | apk.close(); | |
240 | mod.close(); | |
40697a47 MG |
241 | |
242 | File tmpfile = new File(debounce_ko + ".tmp"); | |
243 | tmpfile.renameTo(debounce_ko); | |
5738a32f | 244 | } catch (Exception e) {} |
226a7d4d | 245 | } |
0ae502f6 | 246 | } |