mac80211: kill hw.conf.antenna_sel_{rx,tx}
[linux-2.6.git] / net / mac80211 / debugfs.c
1 /*
2  * mac80211 debugfs for wireless PHYs
3  *
4  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
5  *
6  * GPLv2
7  *
8  */
9
10 #include <linux/debugfs.h>
11 #include <linux/rtnetlink.h>
12 #include "ieee80211_i.h"
13 #include "rate.h"
14 #include "debugfs.h"
15
16 int mac80211_open_file_generic(struct inode *inode, struct file *file)
17 {
18         file->private_data = inode->i_private;
19         return 0;
20 }
21
22 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)              \
23 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
24                             size_t count, loff_t *ppos)                 \
25 {                                                                       \
26         struct ieee80211_local *local = file->private_data;             \
27         char buf[buflen];                                               \
28         int res;                                                        \
29                                                                         \
30         res = scnprintf(buf, buflen, fmt "\n", ##value);                \
31         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
32 }                                                                       \
33                                                                         \
34 static const struct file_operations name## _ops = {                     \
35         .read = name## _read,                                           \
36         .open = mac80211_open_file_generic,                             \
37 };
38
39 #define DEBUGFS_ADD(name)                                               \
40         local->debugfs.name = debugfs_create_file(#name, 0400, phyd,    \
41                                                   local, &name## _ops);
42
43 #define DEBUGFS_DEL(name)                                               \
44         debugfs_remove(local->debugfs.name);                            \
45         local->debugfs.name = NULL;
46
47
48 DEBUGFS_READONLY_FILE(frequency, 20, "%d",
49                       local->hw.conf.channel->center_freq);
50 DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
51                       local->rts_threshold);
52 DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
53                       local->fragmentation_threshold);
54 DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
55                       local->short_retry_limit);
56 DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
57                       local->long_retry_limit);
58 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
59                       local->total_ps_buffered);
60 DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
61                       local->wep_iv & 0xffffff);
62 DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
63                       local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
64
65 /* statistics stuff */
66
67 #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)                 \
68         DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
69
70 static ssize_t format_devstat_counter(struct ieee80211_local *local,
71         char __user *userbuf,
72         size_t count, loff_t *ppos,
73         int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
74                           int buflen))
75 {
76         struct ieee80211_low_level_stats stats;
77         char buf[20];
78         int res;
79
80         if (!local->ops->get_stats)
81                 return -EOPNOTSUPP;
82
83         rtnl_lock();
84         res = local->ops->get_stats(local_to_hw(local), &stats);
85         rtnl_unlock();
86         if (!res)
87                 res = printvalue(&stats, buf, sizeof(buf));
88         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
89 }
90
91 #define DEBUGFS_DEVSTATS_FILE(name)                                     \
92 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
93                                  char *buf, int buflen)                 \
94 {                                                                       \
95         return scnprintf(buf, buflen, "%u\n", stats->name);             \
96 }                                                                       \
97 static ssize_t stats_ ##name## _read(struct file *file,                 \
98                                      char __user *userbuf,              \
99                                      size_t count, loff_t *ppos)        \
100 {                                                                       \
101         return format_devstat_counter(file->private_data,               \
102                                       userbuf,                          \
103                                       count,                            \
104                                       ppos,                             \
105                                       print_devstats_##name);           \
106 }                                                                       \
107                                                                         \
108 static const struct file_operations stats_ ##name## _ops = {            \
109         .read = stats_ ##name## _read,                                  \
110         .open = mac80211_open_file_generic,                             \
111 };
112
113 #define DEBUGFS_STATS_ADD(name)                                         \
114         local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
115                 local, &stats_ ##name## _ops);
116
117 #define DEBUGFS_STATS_DEL(name)                                         \
118         debugfs_remove(local->debugfs.stats.name);                      \
119         local->debugfs.stats.name = NULL;
120
121 DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
122                    local->dot11TransmittedFragmentCount);
123 DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
124                    local->dot11MulticastTransmittedFrameCount);
125 DEBUGFS_STATS_FILE(failed_count, 20, "%u",
126                    local->dot11FailedCount);
127 DEBUGFS_STATS_FILE(retry_count, 20, "%u",
128                    local->dot11RetryCount);
129 DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
130                    local->dot11MultipleRetryCount);
131 DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
132                    local->dot11FrameDuplicateCount);
133 DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
134                    local->dot11ReceivedFragmentCount);
135 DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
136                    local->dot11MulticastReceivedFrameCount);
137 DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
138                    local->dot11TransmittedFrameCount);
139 DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
140                    local->dot11WEPUndecryptableCount);
141 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
142 DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
143                    local->tx_handlers_drop);
144 DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
145                    local->tx_handlers_queued);
146 DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
147                    local->tx_handlers_drop_unencrypted);
148 DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
149                    local->tx_handlers_drop_fragment);
150 DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
151                    local->tx_handlers_drop_wep);
152 DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
153                    local->tx_handlers_drop_not_assoc);
154 DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
155                    local->tx_handlers_drop_unauth_port);
156 DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
157                    local->rx_handlers_drop);
158 DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
159                    local->rx_handlers_queued);
160 DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
161                    local->rx_handlers_drop_nullfunc);
162 DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
163                    local->rx_handlers_drop_defrag);
164 DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
165                    local->rx_handlers_drop_short);
166 DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
167                    local->rx_handlers_drop_passive_scan);
168 DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
169                    local->tx_expand_skb_head);
170 DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
171                    local->tx_expand_skb_head_cloned);
172 DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
173                    local->rx_expand_skb_head);
174 DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
175                    local->rx_expand_skb_head2);
176 DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
177                    local->rx_handlers_fragments);
178 DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
179                    local->tx_status_drop);
180
181 #endif
182
183 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
184 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
185 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
186 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
187
188
189 void debugfs_hw_add(struct ieee80211_local *local)
190 {
191         struct dentry *phyd = local->hw.wiphy->debugfsdir;
192         struct dentry *statsd;
193
194         if (!phyd)
195                 return;
196
197         local->debugfs.stations = debugfs_create_dir("stations", phyd);
198         local->debugfs.keys = debugfs_create_dir("keys", phyd);
199
200         DEBUGFS_ADD(frequency);
201         DEBUGFS_ADD(rts_threshold);
202         DEBUGFS_ADD(fragmentation_threshold);
203         DEBUGFS_ADD(short_retry_limit);
204         DEBUGFS_ADD(long_retry_limit);
205         DEBUGFS_ADD(total_ps_buffered);
206         DEBUGFS_ADD(wep_iv);
207
208         statsd = debugfs_create_dir("statistics", phyd);
209         local->debugfs.statistics = statsd;
210
211         /* if the dir failed, don't put all the other things into the root! */
212         if (!statsd)
213                 return;
214
215         DEBUGFS_STATS_ADD(transmitted_fragment_count);
216         DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
217         DEBUGFS_STATS_ADD(failed_count);
218         DEBUGFS_STATS_ADD(retry_count);
219         DEBUGFS_STATS_ADD(multiple_retry_count);
220         DEBUGFS_STATS_ADD(frame_duplicate_count);
221         DEBUGFS_STATS_ADD(received_fragment_count);
222         DEBUGFS_STATS_ADD(multicast_received_frame_count);
223         DEBUGFS_STATS_ADD(transmitted_frame_count);
224         DEBUGFS_STATS_ADD(wep_undecryptable_count);
225 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
226         DEBUGFS_STATS_ADD(tx_handlers_drop);
227         DEBUGFS_STATS_ADD(tx_handlers_queued);
228         DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
229         DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
230         DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
231         DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
232         DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
233         DEBUGFS_STATS_ADD(rx_handlers_drop);
234         DEBUGFS_STATS_ADD(rx_handlers_queued);
235         DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
236         DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
237         DEBUGFS_STATS_ADD(rx_handlers_drop_short);
238         DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
239         DEBUGFS_STATS_ADD(tx_expand_skb_head);
240         DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
241         DEBUGFS_STATS_ADD(rx_expand_skb_head);
242         DEBUGFS_STATS_ADD(rx_expand_skb_head2);
243         DEBUGFS_STATS_ADD(rx_handlers_fragments);
244         DEBUGFS_STATS_ADD(tx_status_drop);
245 #endif
246         DEBUGFS_STATS_ADD(dot11ACKFailureCount);
247         DEBUGFS_STATS_ADD(dot11RTSFailureCount);
248         DEBUGFS_STATS_ADD(dot11FCSErrorCount);
249         DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
250 }
251
252 void debugfs_hw_del(struct ieee80211_local *local)
253 {
254         DEBUGFS_DEL(frequency);
255         DEBUGFS_DEL(rts_threshold);
256         DEBUGFS_DEL(fragmentation_threshold);
257         DEBUGFS_DEL(short_retry_limit);
258         DEBUGFS_DEL(long_retry_limit);
259         DEBUGFS_DEL(total_ps_buffered);
260         DEBUGFS_DEL(wep_iv);
261
262         DEBUGFS_STATS_DEL(transmitted_fragment_count);
263         DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
264         DEBUGFS_STATS_DEL(failed_count);
265         DEBUGFS_STATS_DEL(retry_count);
266         DEBUGFS_STATS_DEL(multiple_retry_count);
267         DEBUGFS_STATS_DEL(frame_duplicate_count);
268         DEBUGFS_STATS_DEL(received_fragment_count);
269         DEBUGFS_STATS_DEL(multicast_received_frame_count);
270         DEBUGFS_STATS_DEL(transmitted_frame_count);
271         DEBUGFS_STATS_DEL(wep_undecryptable_count);
272         DEBUGFS_STATS_DEL(num_scans);
273 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
274         DEBUGFS_STATS_DEL(tx_handlers_drop);
275         DEBUGFS_STATS_DEL(tx_handlers_queued);
276         DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
277         DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
278         DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
279         DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
280         DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
281         DEBUGFS_STATS_DEL(rx_handlers_drop);
282         DEBUGFS_STATS_DEL(rx_handlers_queued);
283         DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
284         DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
285         DEBUGFS_STATS_DEL(rx_handlers_drop_short);
286         DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
287         DEBUGFS_STATS_DEL(tx_expand_skb_head);
288         DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
289         DEBUGFS_STATS_DEL(rx_expand_skb_head);
290         DEBUGFS_STATS_DEL(rx_expand_skb_head2);
291         DEBUGFS_STATS_DEL(rx_handlers_fragments);
292         DEBUGFS_STATS_DEL(tx_status_drop);
293 #endif
294         DEBUGFS_STATS_DEL(dot11ACKFailureCount);
295         DEBUGFS_STATS_DEL(dot11RTSFailureCount);
296         DEBUGFS_STATS_DEL(dot11FCSErrorCount);
297         DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
298
299         debugfs_remove(local->debugfs.statistics);
300         local->debugfs.statistics = NULL;
301         debugfs_remove(local->debugfs.stations);
302         local->debugfs.stations = NULL;
303         debugfs_remove(local->debugfs.keys);
304         local->debugfs.keys = NULL;
305 }