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",
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_AUTHORIZED ? "AUTHORIZED\n" : "",
82 sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
83 sta->flags & WLAN_STA_WME ? "WME\n" : "",
84 sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
85 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
89 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
91 size_t count, loff_t *ppos)
94 struct sta_info *sta = file->private_data;
95 int res = scnprintf(buf, sizeof(buf), "%u\n",
96 skb_queue_len(&sta->ps_tx_buf));
97 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
99 STA_OPS(num_ps_buf_frames);
101 static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
102 size_t count, loff_t *ppos)
105 struct sta_info *sta = file->private_data;
106 int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
107 sta->last_ack_rssi[0],
108 sta->last_ack_rssi[1],
109 sta->last_ack_rssi[2]);
110 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
112 STA_OPS(last_ack_rssi);
114 static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
115 size_t count, loff_t *ppos)
118 struct sta_info *sta = file->private_data;
119 int res = scnprintf(buf, sizeof(buf), "%d\n",
121 jiffies_to_msecs(jiffies - sta->last_ack) : -1);
122 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
124 STA_OPS(last_ack_ms);
126 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
127 size_t count, loff_t *ppos)
130 struct sta_info *sta = file->private_data;
131 int res = scnprintf(buf, sizeof(buf), "%d\n",
132 jiffies_to_msecs(jiffies - sta->last_rx));
133 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
135 STA_OPS(inactive_ms);
137 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
138 size_t count, loff_t *ppos)
140 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
142 struct sta_info *sta = file->private_data;
143 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
144 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
145 le16_to_cpu(sta->last_seq_ctrl[i]));
146 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
147 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
149 STA_OPS(last_seq_ctrl);
151 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
152 static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
153 size_t count, loff_t *ppos)
155 char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
157 struct sta_info *sta = file->private_data;
158 for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
159 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
160 sta->wme_rx_queue[i]);
161 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
162 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
164 STA_OPS(wme_rx_queue);
166 static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
167 size_t count, loff_t *ppos)
169 char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
171 struct sta_info *sta = file->private_data;
172 for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
173 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
174 sta->wme_tx_queue[i]);
175 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
176 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
178 STA_OPS(wme_tx_queue);
181 static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
182 size_t count, loff_t *ppos)
184 char buf[768], *p = buf;
186 struct sta_info *sta = file->private_data;
187 p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
188 p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
189 "TIDs info is: \n TID :",
190 (sta->ampdu_mlme.dialog_token_allocator + 1));
191 for (i = 0; i < STA_TID_NUM; i++)
192 p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
194 p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :");
195 for (i = 0; i < STA_TID_NUM; i++)
196 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
197 sta->ampdu_mlme.tid_rx[i].state);
199 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
200 for (i = 0; i < STA_TID_NUM; i++)
201 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
202 sta->ampdu_mlme.tid_rx[i].dialog_token);
204 p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :");
205 for (i = 0; i < STA_TID_NUM; i++)
206 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
207 sta->ampdu_mlme.tid_tx[i].state);
209 p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
210 for (i = 0; i < STA_TID_NUM; i++)
211 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
212 sta->ampdu_mlme.tid_tx[i].dialog_token);
214 p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
215 for (i = 0; i < STA_TID_NUM; i++)
216 p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
217 sta->ampdu_mlme.tid_tx[i].ssn);
219 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
221 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
224 static ssize_t sta_agg_status_write(struct file *file,
225 const char __user *user_buf, size_t count, loff_t *ppos)
227 struct sta_info *sta = file->private_data;
228 struct net_device *dev = sta->dev;
229 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
230 struct ieee80211_hw *hw = &local->hw;
232 static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
233 0, 0, 0, 0, 0, 0, 0, 0};
234 static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
235 1, 1, 1, 1, 1, 1, 1, 1};
239 unsigned int tid_num;
242 memset(buf, 0x00, sizeof(buf));
243 buf_size = min(count, (sizeof(buf)-1));
244 if (copy_from_user(buf, user_buf, buf_size))
247 tid_num = simple_strtoul(buf, &endp, 0);
251 if ((tid_num >= 100) && (tid_num <= 115)) {
252 /* toggle Rx aggregation command */
253 tid_num = tid_num - 100;
254 if (tid_static_rx[tid_num] == 1) {
255 strcpy(state, "off ");
256 ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
257 WLAN_REASON_QSTA_REQUIRE_SETUP);
258 sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0xFF;
259 tid_static_rx[tid_num] = 0;
261 strcpy(state, "on ");
262 sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0x00;
263 tid_static_rx[tid_num] = 1;
265 printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
267 } else if ((tid_num >= 0) && (tid_num <= 15)) {
268 /* toggle Tx aggregation command */
269 if (tid_static_tx[tid_num] == 0) {
270 strcpy(state, "on ");
271 rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
273 tid_static_tx[tid_num] = 1;
275 strcpy(state, "off");
276 rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
278 tid_static_tx[tid_num] = 0;
280 printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
286 STA_OPS_WR(agg_status);
288 #define DEBUGFS_ADD(name) \
289 sta->debugfs.name = debugfs_create_file(#name, 0444, \
290 sta->debugfs.dir, sta, &sta_ ##name## _ops);
292 #define DEBUGFS_DEL(name) \
293 debugfs_remove(sta->debugfs.name);\
294 sta->debugfs.name = NULL;
297 void ieee80211_sta_debugfs_add(struct sta_info *sta)
299 struct dentry *stations_dir = sta->local->debugfs.stations;
300 DECLARE_MAC_BUF(mbuf);
306 mac = print_mac(mbuf, sta->addr);
308 sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
309 if (!sta->debugfs.dir)
313 DEBUGFS_ADD(num_ps_buf_frames);
314 DEBUGFS_ADD(last_ack_rssi);
315 DEBUGFS_ADD(last_ack_ms);
316 DEBUGFS_ADD(inactive_ms);
317 DEBUGFS_ADD(last_seq_ctrl);
318 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
319 DEBUGFS_ADD(wme_rx_queue);
320 DEBUGFS_ADD(wme_tx_queue);
322 DEBUGFS_ADD(agg_status);
325 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
328 DEBUGFS_DEL(num_ps_buf_frames);
329 DEBUGFS_DEL(last_ack_rssi);
330 DEBUGFS_DEL(last_ack_ms);
331 DEBUGFS_DEL(inactive_ms);
332 DEBUGFS_DEL(last_seq_ctrl);
333 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
334 DEBUGFS_DEL(wme_rx_queue);
335 DEBUGFS_DEL(wme_tx_queue);
337 DEBUGFS_DEL(agg_status);
339 debugfs_remove(sta->debugfs.dir);
340 sta->debugfs.dir = NULL;