2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include "ieee80211_i.h"
15 #include "debugfs_sta.h"
20 #define STA_READ(name, buflen, field, format_string) \
21 static ssize_t sta_ ##name## _read(struct file *file, \
22 char __user *userbuf, \
23 size_t count, loff_t *ppos) \
26 struct sta_info *sta = file->private_data; \
28 res = scnprintf(buf, buflen, format_string, sta->field); \
29 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
31 #define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
32 #define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
33 #define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
34 #define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
36 #define STA_OPS(name) \
37 static const struct file_operations sta_ ##name## _ops = { \
38 .read = sta_##name##_read, \
39 .open = mac80211_open_file_generic, \
42 #define STA_OPS_WR(name) \
43 static const struct file_operations sta_ ##name## _ops = { \
44 .read = sta_##name##_read, \
45 .write = sta_##name##_write, \
46 .open = mac80211_open_file_generic, \
49 #define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
53 STA_FILE(aid
, aid
, D
);
54 STA_FILE(dev
, dev
->name
, S
);
55 STA_FILE(rx_packets
, rx_packets
, LU
);
56 STA_FILE(tx_packets
, tx_packets
, LU
);
57 STA_FILE(rx_bytes
, rx_bytes
, LU
);
58 STA_FILE(tx_bytes
, tx_bytes
, LU
);
59 STA_FILE(rx_duplicates
, num_duplicates
, LU
);
60 STA_FILE(rx_fragments
, rx_fragments
, LU
);
61 STA_FILE(rx_dropped
, rx_dropped
, LU
);
62 STA_FILE(tx_fragments
, tx_fragments
, LU
);
63 STA_FILE(tx_filtered
, tx_filtered_count
, LU
);
64 STA_FILE(tx_retry_failed
, tx_retry_failed
, LU
);
65 STA_FILE(tx_retry_count
, tx_retry_count
, LU
);
66 STA_FILE(last_rssi
, last_rssi
, D
);
67 STA_FILE(last_signal
, last_signal
, D
);
68 STA_FILE(last_noise
, last_noise
, D
);
69 STA_FILE(channel_use
, channel_use
, D
);
70 STA_FILE(wep_weak_iv_count
, wep_weak_iv_count
, D
);
72 static ssize_t
sta_flags_read(struct file
*file
, char __user
*userbuf
,
73 size_t count
, loff_t
*ppos
)
76 struct sta_info
*sta
= file
->private_data
;
77 int res
= scnprintf(buf
, sizeof(buf
), "%s%s%s%s%s%s%s%s%s",
78 sta
->flags
& WLAN_STA_AUTH
? "AUTH\n" : "",
79 sta
->flags
& WLAN_STA_ASSOC
? "ASSOC\n" : "",
80 sta
->flags
& WLAN_STA_PS
? "PS\n" : "",
81 sta
->flags
& WLAN_STA_TIM
? "TIM\n" : "",
82 sta
->flags
& WLAN_STA_PERM
? "PERM\n" : "",
83 sta
->flags
& WLAN_STA_AUTHORIZED
? "AUTHORIZED\n" : "",
84 sta
->flags
& WLAN_STA_SHORT_PREAMBLE
? "SHORT PREAMBLE\n" : "",
85 sta
->flags
& WLAN_STA_WME
? "WME\n" : "",
86 sta
->flags
& WLAN_STA_WDS
? "WDS\n" : "");
87 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
91 static ssize_t
sta_num_ps_buf_frames_read(struct file
*file
,
93 size_t count
, loff_t
*ppos
)
96 struct sta_info
*sta
= file
->private_data
;
97 int res
= scnprintf(buf
, sizeof(buf
), "%u\n",
98 skb_queue_len(&sta
->ps_tx_buf
));
99 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
101 STA_OPS(num_ps_buf_frames
);
103 static ssize_t
sta_last_ack_rssi_read(struct file
*file
, char __user
*userbuf
,
104 size_t count
, loff_t
*ppos
)
107 struct sta_info
*sta
= file
->private_data
;
108 int res
= scnprintf(buf
, sizeof(buf
), "%d %d %d\n",
109 sta
->last_ack_rssi
[0],
110 sta
->last_ack_rssi
[1],
111 sta
->last_ack_rssi
[2]);
112 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
114 STA_OPS(last_ack_rssi
);
116 static ssize_t
sta_last_ack_ms_read(struct file
*file
, char __user
*userbuf
,
117 size_t count
, loff_t
*ppos
)
120 struct sta_info
*sta
= file
->private_data
;
121 int res
= scnprintf(buf
, sizeof(buf
), "%d\n",
123 jiffies_to_msecs(jiffies
- sta
->last_ack
) : -1);
124 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
126 STA_OPS(last_ack_ms
);
128 static ssize_t
sta_inactive_ms_read(struct file
*file
, char __user
*userbuf
,
129 size_t count
, loff_t
*ppos
)
132 struct sta_info
*sta
= file
->private_data
;
133 int res
= scnprintf(buf
, sizeof(buf
), "%d\n",
134 jiffies_to_msecs(jiffies
- sta
->last_rx
));
135 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
137 STA_OPS(inactive_ms
);
139 static ssize_t
sta_last_seq_ctrl_read(struct file
*file
, char __user
*userbuf
,
140 size_t count
, loff_t
*ppos
)
142 char buf
[15*NUM_RX_DATA_QUEUES
], *p
= buf
;
144 struct sta_info
*sta
= file
->private_data
;
145 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++)
146 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%x ",
147 le16_to_cpu(sta
->last_seq_ctrl
[i
]));
148 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
149 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
151 STA_OPS(last_seq_ctrl
);
153 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
154 static ssize_t
sta_wme_rx_queue_read(struct file
*file
, char __user
*userbuf
,
155 size_t count
, loff_t
*ppos
)
157 char buf
[15*NUM_RX_DATA_QUEUES
], *p
= buf
;
159 struct sta_info
*sta
= file
->private_data
;
160 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++)
161 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%u ",
162 sta
->wme_rx_queue
[i
]);
163 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
164 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
166 STA_OPS(wme_rx_queue
);
168 static ssize_t
sta_wme_tx_queue_read(struct file
*file
, char __user
*userbuf
,
169 size_t count
, loff_t
*ppos
)
171 char buf
[15*NUM_TX_DATA_QUEUES
], *p
= buf
;
173 struct sta_info
*sta
= file
->private_data
;
174 for (i
= 0; i
< NUM_TX_DATA_QUEUES
; i
++)
175 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%u ",
176 sta
->wme_tx_queue
[i
]);
177 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
178 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
180 STA_OPS(wme_tx_queue
);
183 static ssize_t
sta_agg_status_read(struct file
*file
, char __user
*userbuf
,
184 size_t count
, loff_t
*ppos
)
186 char buf
[768], *p
= buf
;
188 struct sta_info
*sta
= file
->private_data
;
189 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "Agg state for STA is:\n");
190 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, " STA next dialog_token is %d \n "
191 "TIDs info is: \n TID :",
192 (sta
->ampdu_mlme
.dialog_token_allocator
+ 1));
193 for (i
= 0; i
< STA_TID_NUM
; i
++)
194 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d", i
);
196 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n RX :");
197 for (i
= 0; i
< STA_TID_NUM
; i
++)
198 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d",
199 sta
->ampdu_mlme
.tid_rx
[i
].state
);
201 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n DTKN:");
202 for (i
= 0; i
< STA_TID_NUM
; i
++)
203 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d",
204 sta
->ampdu_mlme
.tid_rx
[i
].dialog_token
);
206 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n TX :");
207 for (i
= 0; i
< STA_TID_NUM
; i
++)
208 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d",
209 sta
->ampdu_mlme
.tid_tx
[i
].state
);
211 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n DTKN:");
212 for (i
= 0; i
< STA_TID_NUM
; i
++)
213 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d",
214 sta
->ampdu_mlme
.tid_tx
[i
].dialog_token
);
216 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n SSN :");
217 for (i
= 0; i
< STA_TID_NUM
; i
++)
218 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%5d",
219 sta
->ampdu_mlme
.tid_tx
[i
].ssn
);
221 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
223 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
226 static ssize_t
sta_agg_status_write(struct file
*file
,
227 const char __user
*user_buf
, size_t count
, loff_t
*ppos
)
229 struct sta_info
*sta
= file
->private_data
;
230 struct net_device
*dev
= sta
->dev
;
231 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
232 struct ieee80211_hw
*hw
= &local
->hw
;
234 static int tid_static_tx
[16] = {0, 0, 0, 0, 0, 0, 0, 0,
235 0, 0, 0, 0, 0, 0, 0, 0};
236 static int tid_static_rx
[16] = {1, 1, 1, 1, 1, 1, 1, 1,
237 1, 1, 1, 1, 1, 1, 1, 1};
241 unsigned int tid_num
;
244 memset(buf
, 0x00, sizeof(buf
));
245 buf_size
= min(count
, (sizeof(buf
)-1));
246 if (copy_from_user(buf
, user_buf
, buf_size
))
249 tid_num
= simple_strtoul(buf
, &endp
, 0);
253 if ((tid_num
>= 100) && (tid_num
<= 115)) {
254 /* toggle Rx aggregation command */
255 tid_num
= tid_num
- 100;
256 if (tid_static_rx
[tid_num
] == 1) {
257 strcpy(state
, "off ");
258 ieee80211_sta_stop_rx_ba_session(dev
, da
, tid_num
, 0,
259 WLAN_REASON_QSTA_REQUIRE_SETUP
);
260 sta
->ampdu_mlme
.tid_rx
[tid_num
].buf_size
= 0xFF;
261 tid_static_rx
[tid_num
] = 0;
263 strcpy(state
, "on ");
264 sta
->ampdu_mlme
.tid_rx
[tid_num
].buf_size
= 0x00;
265 tid_static_rx
[tid_num
] = 1;
267 printk(KERN_DEBUG
"debugfs - try switching tid %u %s\n",
269 } else if ((tid_num
>= 0) && (tid_num
<= 15)) {
270 /* toggle Tx aggregation command */
271 if (tid_static_tx
[tid_num
] == 0) {
272 strcpy(state
, "on ");
273 rs
= ieee80211_start_tx_ba_session(hw
, da
, tid_num
);
275 tid_static_tx
[tid_num
] = 1;
277 strcpy(state
, "off");
278 rs
= ieee80211_stop_tx_ba_session(hw
, da
, tid_num
, 1);
280 tid_static_tx
[tid_num
] = 0;
282 printk(KERN_DEBUG
"debugfs - switching tid %u %s, return=%d\n",
288 STA_OPS_WR(agg_status
);
290 #define DEBUGFS_ADD(name) \
291 sta->debugfs.name = debugfs_create_file(#name, 0444, \
292 sta->debugfs.dir, sta, &sta_ ##name## _ops);
294 #define DEBUGFS_DEL(name) \
295 debugfs_remove(sta->debugfs.name);\
296 sta->debugfs.name = NULL;
299 void ieee80211_sta_debugfs_add(struct sta_info
*sta
)
301 struct dentry
*stations_dir
= sta
->local
->debugfs
.stations
;
302 DECLARE_MAC_BUF(mac
);
307 print_mac(mac
, sta
->addr
);
309 sta
->debugfs
.dir
= debugfs_create_dir(mac
, stations_dir
);
310 if (!sta
->debugfs
.dir
)
314 DEBUGFS_ADD(num_ps_buf_frames
);
315 DEBUGFS_ADD(last_ack_rssi
);
316 DEBUGFS_ADD(last_ack_ms
);
317 DEBUGFS_ADD(inactive_ms
);
318 DEBUGFS_ADD(last_seq_ctrl
);
319 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
320 DEBUGFS_ADD(wme_rx_queue
);
321 DEBUGFS_ADD(wme_tx_queue
);
323 DEBUGFS_ADD(agg_status
);
326 void ieee80211_sta_debugfs_remove(struct sta_info
*sta
)
329 DEBUGFS_DEL(num_ps_buf_frames
);
330 DEBUGFS_DEL(last_ack_rssi
);
331 DEBUGFS_DEL(last_ack_ms
);
332 DEBUGFS_DEL(inactive_ms
);
333 DEBUGFS_DEL(last_seq_ctrl
);
334 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
335 DEBUGFS_DEL(wme_rx_queue
);
336 DEBUGFS_DEL(wme_tx_queue
);
338 DEBUGFS_DEL(agg_status
);
340 debugfs_remove(sta
->debugfs
.dir
);
341 sta
->debugfs
.dir
= NULL
;