Commit | Line | Data |
---|---|---|
1ac61302 LR |
1 | /* |
2 | * cfg80211 debugfs | |
3 | * | |
4 | * Copyright 2009 Luis R. Rodriguez <lrodriguez@atheros.com> | |
5 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include "core.h" | |
13 | #include "debugfs.h" | |
14 | ||
15 | static int cfg80211_open_file_generic(struct inode *inode, struct file *file) | |
16 | { | |
17 | file->private_data = inode->i_private; | |
18 | return 0; | |
19 | } | |
20 | ||
21 | #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ | |
22 | static ssize_t name## _read(struct file *file, char __user *userbuf, \ | |
23 | size_t count, loff_t *ppos) \ | |
24 | { \ | |
25 | struct wiphy *wiphy= file->private_data; \ | |
26 | char buf[buflen]; \ | |
27 | int res; \ | |
28 | \ | |
29 | res = scnprintf(buf, buflen, fmt "\n", ##value); \ | |
30 | return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ | |
31 | } \ | |
32 | \ | |
33 | static const struct file_operations name## _ops = { \ | |
34 | .read = name## _read, \ | |
35 | .open = cfg80211_open_file_generic, \ | |
36 | }; | |
37 | ||
38 | DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", | |
39 | wiphy->rts_threshold) | |
40 | DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", | |
41 | wiphy->frag_threshold); | |
42 | DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", | |
43 | wiphy->retry_short) | |
44 | DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", | |
45 | wiphy->retry_long); | |
46 | ||
47 | #define DEBUGFS_ADD(name) \ | |
48 | drv->debugfs.name = debugfs_create_file(#name, S_IRUGO, phyd, \ | |
49 | &drv->wiphy, &name## _ops); | |
50 | #define DEBUGFS_DEL(name) \ | |
51 | debugfs_remove(drv->debugfs.name); \ | |
52 | drv->debugfs.name = NULL; | |
53 | ||
54 | void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv) | |
55 | { | |
56 | struct dentry *phyd = drv->wiphy.debugfsdir; | |
57 | ||
58 | DEBUGFS_ADD(rts_threshold); | |
59 | DEBUGFS_ADD(fragmentation_threshold); | |
60 | DEBUGFS_ADD(short_retry_limit); | |
61 | DEBUGFS_ADD(long_retry_limit); | |
62 | } | |
63 | ||
64 | void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv) | |
65 | { | |
66 | DEBUGFS_DEL(rts_threshold); | |
67 | DEBUGFS_DEL(fragmentation_threshold); | |
68 | DEBUGFS_DEL(short_retry_limit); | |
69 | DEBUGFS_DEL(long_retry_limit); | |
70 | } |