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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()); | |
40697a47 MG |
28 | } |
29 | ||
6bb245ae MG |
30 | protected void runAsRoot(String command) throws java.io.IOException,java.lang.InterruptedException { |
31 | Process rootcmd = Runtime.getRuntime().exec(new String[]{"su","-c","sh"}); | |
32 | DataOutputStream sh = new DataOutputStream(rootcmd.getOutputStream()); | |
33 | sh.writeBytes(command + "\n"); | |
34 | sh.writeBytes("exit\n"); | |
35 | sh.flush(); | |
36 | sh.close(); | |
37 | ||
38 | rootcmd.waitFor(); | |
39 | } | |
40 | ||
0b9d6422 | 41 | public synchronized void _loadModule() { |
40697a47 MG |
42 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); |
43 | ||
226a7d4d MG |
44 | extractModule(); |
45 | ||
d3e7b10c MG |
46 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); |
47 | SharedPreferences.Editor editor = settings.edit(); | |
48 | if (is_safe_to_load()) { | |
49 | editor.putBoolean("safe_to_load", false); | |
50 | editor.commit(); | |
51 | } | |
40697a47 | 52 | |
0ae502f6 | 53 | try { |
0b9d6422 | 54 | runAsRoot("/system/bin/insmod " + debounce_ko); |
08fec0be MG |
55 | } catch (Exception e) { |
56 | return; | |
a6cf1017 MG |
57 | } |
58 | ||
59 | if (!isLoaded()) { | |
60 | return; | |
08fec0be | 61 | } |
dea0f4b0 | 62 | |
818fb327 | 63 | if (getDelay() < 0) { |
08fec0be MG |
64 | return; |
65 | } | |
66 | ||
67 | /* Module was obviously loaded, so it is safe to load on boot */ | |
d3e7b10c MG |
68 | editor.putBoolean("safe_to_load", true); |
69 | editor.commit(); | |
0ae502f6 MG |
70 | } |
71 | ||
08fec0be | 72 | public synchronized void unloadModule() { |
40697a47 | 73 | try { |
6bb245ae | 74 | runAsRoot("/system/bin/rmmod debounce"); |
40697a47 MG |
75 | } catch (Exception e) {} |
76 | } | |
77 | ||
08fec0be | 78 | public synchronized boolean isLoaded() { |
d82ae589 MG |
79 | boolean loaded = false; |
80 | try { | |
81 | String read; | |
82 | ||
83 | FileReader modules = new FileReader("/proc/modules"); | |
84 | BufferedReader modules_buf = new BufferedReader(modules); | |
85 | ||
86 | while((read = modules_buf.readLine()) != null) { | |
87 | if (read.regionMatches(0, "debounce", 0, 8)) { | |
88 | loaded = true; | |
89 | } | |
90 | } | |
91 | ||
92 | } catch (Exception e) { | |
93 | loaded = false; | |
94 | } | |
95 | ||
96 | return loaded; | |
0ae502f6 | 97 | } |
226a7d4d | 98 | |
08fec0be | 99 | public synchronized int getDelay() { |
d82ae589 MG |
100 | int debounce_delay = -1; |
101 | ||
102 | try { | |
103 | String read; | |
104 | ||
0b9d6422 | 105 | FileReader delay = new FileReader("/sys/devices/debounce/debounce_delay"); |
d82ae589 MG |
106 | BufferedReader delay_buf = new BufferedReader(delay); |
107 | ||
108 | read = delay_buf.readLine(); | |
109 | if (read != null) { | |
110 | debounce_delay = Integer.parseInt(read.trim()); | |
111 | } | |
0b9d6422 MG |
112 | |
113 | delay_buf.close(); | |
d82ae589 MG |
114 | } catch (Exception e) {} |
115 | ||
116 | return debounce_delay; | |
ee6322a1 MG |
117 | } |
118 | ||
0b9d6422 MG |
119 | public synchronized void setDelay(int debounce_delay) { |
120 | if (!isLoaded()) { | |
121 | return; | |
376c6ac7 MG |
122 | } |
123 | ||
0b9d6422 MG |
124 | try { |
125 | FileWriter delay = new FileWriter("/sys/devices/debounce/debounce_delay"); | |
126 | BufferedWriter delay_buf = new BufferedWriter(delay); | |
127 | ||
128 | delay_buf.write((new Integer(debounce_delay)).toString()); | |
129 | ||
130 | delay_buf.close(); | |
131 | } catch (Exception e) {} | |
376c6ac7 MG |
132 | } |
133 | ||
dea0f4b0 MG |
134 | public synchronized int getSavedDelay() { |
135 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
136 | ||
0b9d6422 | 137 | return settings.getInt("debounce_delay", 8); |
dea0f4b0 MG |
138 | } |
139 | ||
140 | public synchronized void setSavedDelay(int delay) { | |
141 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
142 | SharedPreferences.Editor editor = settings.edit(); | |
143 | ||
144 | editor.putInt("debounce_delay", delay); | |
145 | editor.commit(); | |
146 | } | |
147 | ||
08fec0be MG |
148 | public synchronized boolean is_safe_to_load() { |
149 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
c3053460 MG |
150 | return settings.getBoolean("safe_to_load", false); |
151 | } | |
152 | ||
153 | public synchronized boolean get_on_boot() { | |
154 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
155 | return settings.getBoolean("on_boot", false); | |
156 | } | |
08fec0be | 157 | |
c3053460 MG |
158 | public synchronized void set_on_boot(boolean on_boot) { |
159 | SharedPreferences settings = ctx.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE); | |
160 | SharedPreferences.Editor editor = settings.edit(); | |
161 | ||
162 | editor.putBoolean("on_boot", on_boot); | |
163 | editor.commit(); | |
08fec0be MG |
164 | } |
165 | ||
5738a32f MG |
166 | private synchronized void extractModule() { |
167 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); | |
226a7d4d MG |
168 | |
169 | if (debounce_ko.exists()) { | |
170 | return; | |
171 | } | |
5738a32f MG |
172 | |
173 | try { | |
174 | InputStream apk = ctx.getAssets().open("debounce.ko"); | |
40697a47 MG |
175 | OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0); |
176 | ||
177 | //I assume a page is 4k... | |
178 | byte buf[] = new byte[4096]; | |
179 | int bytes; | |
180 | ||
181 | while((bytes = apk.read(buf)) != -1) { | |
182 | mod.write(buf, 0, bytes); | |
183 | } | |
5738a32f MG |
184 | |
185 | apk.close(); | |
186 | mod.close(); | |
40697a47 MG |
187 | |
188 | File tmpfile = new File(debounce_ko + ".tmp"); | |
189 | tmpfile.renameTo(debounce_ko); | |
5738a32f | 190 | } catch (Exception e) {} |
226a7d4d | 191 | } |
0ae502f6 | 192 | } |