[MAC80211]: Remove bitfields from struct ieee80211_if_sta
[linux-2.6] / net / mac80211 / debugfs_sta.c
1 /*
2  * Copyright 2003-2005  Devicescape Software, Inc.
3  * Copyright (c) 2006   Jiri Benc <jbenc@suse.cz>
4  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
5  *
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.
9  */
10
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include "ieee80211_i.h"
14 #include "debugfs.h"
15 #include "debugfs_sta.h"
16 #include "sta_info.h"
17
18 /* sta attributtes */
19
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)          \
24 {                                                                       \
25         int res;                                                        \
26         struct sta_info *sta = file->private_data;                      \
27         char buf[buflen];                                               \
28         res = scnprintf(buf, buflen, format_string, sta->field);        \
29         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
30 }
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")
35
36 #define STA_READ_RATE(name, field)                                      \
37 static ssize_t sta_##name##_read(struct file *file,                     \
38                                  char __user *userbuf,                  \
39                                  size_t count, loff_t *ppos)            \
40 {                                                                       \
41         struct sta_info *sta = file->private_data;                      \
42         struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
43         struct ieee80211_hw_mode *mode = local->oper_hw_mode;           \
44         char buf[20];                                                   \
45         int res = scnprintf(buf, sizeof(buf), "%d\n",                   \
46                             (sta->field >= 0 &&                         \
47                             sta->field < mode->num_rates) ?             \
48                             mode->rates[sta->field].rate : -1);         \
49         return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
50 }
51
52 #define STA_OPS(name)                                                   \
53 static const struct file_operations sta_ ##name## _ops = {              \
54         .read = sta_##name##_read,                                      \
55         .open = mac80211_open_file_generic,                             \
56 }
57
58 #define STA_FILE(name, field, format)                                   \
59                 STA_READ_##format(name, field)                          \
60                 STA_OPS(name)
61
62 STA_FILE(aid, aid, D);
63 STA_FILE(key_idx_compression, key_idx_compression, D);
64 STA_FILE(dev, dev->name, S);
65 STA_FILE(vlan_id, vlan_id, D);
66 STA_FILE(rx_packets, rx_packets, LU);
67 STA_FILE(tx_packets, tx_packets, LU);
68 STA_FILE(rx_bytes, rx_bytes, LU);
69 STA_FILE(tx_bytes, tx_bytes, LU);
70 STA_FILE(rx_duplicates, num_duplicates, LU);
71 STA_FILE(rx_fragments, rx_fragments, LU);
72 STA_FILE(rx_dropped, rx_dropped, LU);
73 STA_FILE(tx_fragments, tx_fragments, LU);
74 STA_FILE(tx_filtered, tx_filtered_count, LU);
75 STA_FILE(txrate, txrate, RATE);
76 STA_FILE(last_txrate, last_txrate, RATE);
77 STA_FILE(tx_retry_failed, tx_retry_failed, LU);
78 STA_FILE(tx_retry_count, tx_retry_count, LU);
79 STA_FILE(last_rssi, last_rssi, D);
80 STA_FILE(last_signal, last_signal, D);
81 STA_FILE(last_noise, last_noise, D);
82 STA_FILE(channel_use, channel_use, D);
83 STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
84
85 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
86                               size_t count, loff_t *ppos)
87 {
88         char buf[100];
89         struct sta_info *sta = file->private_data;
90         int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
91                 sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
92                 sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
93                 sta->flags & WLAN_STA_PS ? "PS\n" : "",
94                 sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
95                 sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
96                 sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
97                 sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
98                 sta->flags & WLAN_STA_WME ? "WME\n" : "",
99                 sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
100         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
101 }
102 STA_OPS(flags);
103
104 static ssize_t sta_num_ps_buf_frames_read(struct file *file,
105                                           char __user *userbuf,
106                                           size_t count, loff_t *ppos)
107 {
108         char buf[20];
109         struct sta_info *sta = file->private_data;
110         int res = scnprintf(buf, sizeof(buf), "%u\n",
111                             skb_queue_len(&sta->ps_tx_buf));
112         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
113 }
114 STA_OPS(num_ps_buf_frames);
115
116 static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
117                                       size_t count, loff_t *ppos)
118 {
119         char buf[100];
120         struct sta_info *sta = file->private_data;
121         int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
122                             sta->last_ack_rssi[0],
123                             sta->last_ack_rssi[1],
124                             sta->last_ack_rssi[2]);
125         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
126 }
127 STA_OPS(last_ack_rssi);
128
129 static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
130                                     size_t count, loff_t *ppos)
131 {
132         char buf[20];
133         struct sta_info *sta = file->private_data;
134         int res = scnprintf(buf, sizeof(buf), "%d\n",
135                             sta->last_ack ?
136                             jiffies_to_msecs(jiffies - sta->last_ack) : -1);
137         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
138 }
139 STA_OPS(last_ack_ms);
140
141 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
142                                     size_t count, loff_t *ppos)
143 {
144         char buf[20];
145         struct sta_info *sta = file->private_data;
146         int res = scnprintf(buf, sizeof(buf), "%d\n",
147                             jiffies_to_msecs(jiffies - sta->last_rx));
148         return simple_read_from_buffer(userbuf, count, ppos, buf, res);
149 }
150 STA_OPS(inactive_ms);
151
152 static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
153                                       size_t count, loff_t *ppos)
154 {
155         char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
156         int i;
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, "%x ",
160                                le16_to_cpu(sta->last_seq_ctrl[i]));
161         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
162         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
163 }
164 STA_OPS(last_seq_ctrl);
165
166 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
167 static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
168                                      size_t count, loff_t *ppos)
169 {
170         char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
171         int i;
172         struct sta_info *sta = file->private_data;
173         for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
174                 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
175                                sta->wme_rx_queue[i]);
176         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
177         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
178 }
179 STA_OPS(wme_rx_queue);
180
181 static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
182                                      size_t count, loff_t *ppos)
183 {
184         char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
185         int i;
186         struct sta_info *sta = file->private_data;
187         for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
188                 p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
189                                sta->wme_tx_queue[i]);
190         p += scnprintf(p, sizeof(buf)+buf-p, "\n");
191         return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
192 }
193 STA_OPS(wme_tx_queue);
194 #endif
195
196 #define DEBUGFS_ADD(name) \
197         sta->debugfs.name = debugfs_create_file(#name, 0444, \
198                 sta->debugfs.dir, sta, &sta_ ##name## _ops);
199
200 #define DEBUGFS_DEL(name) \
201         debugfs_remove(sta->debugfs.name);\
202         sta->debugfs.name = NULL;
203
204
205 void ieee80211_sta_debugfs_add(struct sta_info *sta)
206 {
207         char buf[3*6];
208         struct dentry *stations_dir = sta->local->debugfs.stations;
209
210         if (!stations_dir)
211                 return;
212
213         sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
214
215         sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
216         if (!sta->debugfs.dir)
217                 return;
218
219         DEBUGFS_ADD(flags);
220         DEBUGFS_ADD(num_ps_buf_frames);
221         DEBUGFS_ADD(last_ack_rssi);
222         DEBUGFS_ADD(last_ack_ms);
223         DEBUGFS_ADD(inactive_ms);
224         DEBUGFS_ADD(last_seq_ctrl);
225 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
226         DEBUGFS_ADD(wme_rx_queue);
227         DEBUGFS_ADD(wme_tx_queue);
228 #endif
229 }
230
231 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
232 {
233         DEBUGFS_DEL(flags);
234         DEBUGFS_DEL(num_ps_buf_frames);
235         DEBUGFS_DEL(last_ack_rssi);
236         DEBUGFS_DEL(last_ack_ms);
237         DEBUGFS_DEL(inactive_ms);
238         DEBUGFS_DEL(last_seq_ctrl);
239 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
240         DEBUGFS_DEL(wme_rx_queue);
241         DEBUGFS_DEL(wme_tx_queue);
242 #endif
243
244         debugfs_remove(sta->debugfs.dir);
245         sta->debugfs.dir = NULL;
246 }