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;