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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 MG |
6 | import java.io.FileReader; |
7 | import java.io.BufferedReader; | |
226a7d4d | 8 | |
5738a32f MG |
9 | import android.content.Context; |
10 | ||
0ae502f6 MG |
11 | public class DebounceModuleHelper |
12 | { | |
5738a32f | 13 | private Context ctx; |
226a7d4d | 14 | |
5738a32f MG |
15 | public DebounceModuleHelper(Context context) { |
16 | ctx = context; | |
226a7d4d MG |
17 | } |
18 | ||
19 | public void loadModule() { | |
40697a47 MG |
20 | loadModule(10); |
21 | } | |
22 | ||
23 | public void loadModule(int delay) { | |
24 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); | |
25 | ||
226a7d4d MG |
26 | extractModule(); |
27 | ||
40697a47 MG |
28 | // FIXME: Read settings from database... |
29 | ||
0ae502f6 | 30 | try { |
40697a47 | 31 | Process insmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/insmod " + debounce_ko + " debounce_delay=" + delay}); |
0ae502f6 MG |
32 | insmod.waitFor(); |
33 | } catch (Exception e) {} | |
34 | } | |
35 | ||
40697a47 MG |
36 | public void unloadModule() { |
37 | try { | |
38 | Process rmmod = Runtime.getRuntime().exec(new String[]{"su","-c","/system/bin/rmmod debounce"}); | |
39 | rmmod.waitFor(); | |
40 | } catch (Exception e) {} | |
41 | } | |
42 | ||
226a7d4d | 43 | public boolean isLoaded() { |
d82ae589 MG |
44 | boolean loaded = false; |
45 | try { | |
46 | String read; | |
47 | ||
48 | FileReader modules = new FileReader("/proc/modules"); | |
49 | BufferedReader modules_buf = new BufferedReader(modules); | |
50 | ||
51 | while((read = modules_buf.readLine()) != null) { | |
52 | if (read.regionMatches(0, "debounce", 0, 8)) { | |
53 | loaded = true; | |
54 | } | |
55 | } | |
56 | ||
57 | } catch (Exception e) { | |
58 | loaded = false; | |
59 | } | |
60 | ||
61 | return loaded; | |
0ae502f6 | 62 | } |
226a7d4d | 63 | |
ee6322a1 | 64 | public int getDelay() { |
d82ae589 MG |
65 | int debounce_delay = -1; |
66 | ||
67 | try { | |
68 | String read; | |
69 | ||
70 | FileReader delay = new FileReader("/sys/module/debounce/parameters/debounce_delay"); | |
71 | BufferedReader delay_buf = new BufferedReader(delay); | |
72 | ||
73 | read = delay_buf.readLine(); | |
74 | if (read != null) { | |
75 | debounce_delay = Integer.parseInt(read.trim()); | |
76 | } | |
77 | } catch (Exception e) {} | |
78 | ||
79 | return debounce_delay; | |
ee6322a1 MG |
80 | } |
81 | ||
5738a32f MG |
82 | private synchronized void extractModule() { |
83 | File debounce_ko = new File(ctx.getFilesDir() + "/debounce.ko"); | |
226a7d4d MG |
84 | |
85 | if (debounce_ko.exists()) { | |
86 | return; | |
87 | } | |
5738a32f MG |
88 | |
89 | try { | |
90 | InputStream apk = ctx.getAssets().open("debounce.ko"); | |
40697a47 MG |
91 | OutputStream mod = ctx.openFileOutput("debounce.ko.tmp", 0); |
92 | ||
93 | //I assume a page is 4k... | |
94 | byte buf[] = new byte[4096]; | |
95 | int bytes; | |
96 | ||
97 | while((bytes = apk.read(buf)) != -1) { | |
98 | mod.write(buf, 0, bytes); | |
99 | } | |
5738a32f MG |
100 | |
101 | apk.close(); | |
102 | mod.close(); | |
40697a47 MG |
103 | |
104 | File tmpfile = new File(debounce_ko + ".tmp"); | |
105 | tmpfile.renameTo(debounce_ko); | |
5738a32f | 106 | } catch (Exception e) {} |
226a7d4d | 107 | } |
0ae502f6 | 108 | } |