blob: fd334133ff45083dfe12fb67b6c624a3e120acca [file] [log] [blame]
Jiri Bence9f207f2007-05-05 11:46:38 -07001/*
2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
Johannes Bergd98ad832014-09-03 15:24:57 +03005 * Copyright 2013-2014 Intel Mobile Communications GmbH
Sara Sharon1e0bbeb2016-03-09 13:27:09 +02006 * Copyright(c) 2016 Intel Deutschland GmbH
Jiri Bence9f207f2007-05-05 11:46:38 -07007 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/debugfs.h>
14#include <linux/ieee80211.h>
15#include "ieee80211_i.h"
16#include "debugfs.h"
17#include "debugfs_sta.h"
18#include "sta_info.h"
Sujith Manoharan77d2ece2012-11-20 08:46:02 +053019#include "driver-ops.h"
Jiri Bence9f207f2007-05-05 11:46:38 -070020
21/* sta attributtes */
22
Eliad Peller07caf9d2010-10-27 14:58:29 +020023#define STA_READ(name, field, format_string) \
Jiri Bence9f207f2007-05-05 11:46:38 -070024static ssize_t sta_ ##name## _read(struct file *file, \
25 char __user *userbuf, \
26 size_t count, loff_t *ppos) \
27{ \
Jiri Bence9f207f2007-05-05 11:46:38 -070028 struct sta_info *sta = file->private_data; \
Eliad Peller07caf9d2010-10-27 14:58:29 +020029 return mac80211_format_buffer(userbuf, count, ppos, \
30 format_string, sta->field); \
Jiri Bence9f207f2007-05-05 11:46:38 -070031}
Eliad Peller07caf9d2010-10-27 14:58:29 +020032#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
Jiri Bence9f207f2007-05-05 11:46:38 -070033
Jiri Bence9f207f2007-05-05 11:46:38 -070034#define STA_OPS(name) \
35static const struct file_operations sta_ ##name## _ops = { \
36 .read = sta_##name##_read, \
Stephen Boyd234e3402012-04-05 14:25:11 -070037 .open = simple_open, \
Arnd Bergmann2b18ab362010-07-06 19:05:31 +020038 .llseek = generic_file_llseek, \
Jiri Bence9f207f2007-05-05 11:46:38 -070039}
40
Johannes Berga75b4362010-05-01 18:53:51 +020041#define STA_OPS_RW(name) \
42static const struct file_operations sta_ ##name## _ops = { \
43 .read = sta_##name##_read, \
44 .write = sta_##name##_write, \
Stephen Boyd234e3402012-04-05 14:25:11 -070045 .open = simple_open, \
Arnd Bergmann2b18ab362010-07-06 19:05:31 +020046 .llseek = generic_file_llseek, \
Johannes Berga75b4362010-05-01 18:53:51 +020047}
48
Jiri Bence9f207f2007-05-05 11:46:38 -070049#define STA_FILE(name, field, format) \
50 STA_READ_##format(name, field) \
51 STA_OPS(name)
52
Johannes Berg17741cd2008-09-11 00:02:02 +020053STA_FILE(aid, sta.aid, D);
Jiri Bence9f207f2007-05-05 11:46:38 -070054
Johannes Bergc84387d2016-03-17 15:02:54 +020055static const char * const sta_flag_names[] = {
56#define FLAG(F) [WLAN_STA_##F] = #F
57 FLAG(AUTH),
58 FLAG(ASSOC),
59 FLAG(PS_STA),
60 FLAG(AUTHORIZED),
61 FLAG(SHORT_PREAMBLE),
62 FLAG(WDS),
63 FLAG(CLEAR_PS_FILT),
64 FLAG(MFP),
65 FLAG(BLOCK_BA),
66 FLAG(PS_DRIVER),
67 FLAG(PSPOLL),
68 FLAG(TDLS_PEER),
69 FLAG(TDLS_PEER_AUTH),
70 FLAG(TDLS_INITIATOR),
71 FLAG(TDLS_CHAN_SWITCH),
72 FLAG(TDLS_OFF_CHANNEL),
73 FLAG(TDLS_WIDER_BW),
74 FLAG(UAPSD),
75 FLAG(SP),
76 FLAG(4ADDR_EVENT),
77 FLAG(INSERTED),
78 FLAG(RATE_CONTROL),
79 FLAG(TOFFSET_KNOWN),
80 FLAG(MPSP_OWNER),
81 FLAG(MPSP_RECIPIENT),
82 FLAG(PS_DELIVER),
83#undef FLAG
84};
85
Jiri Bence9f207f2007-05-05 11:46:38 -070086static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
87 size_t count, loff_t *ppos)
88{
Johannes Bergc84387d2016-03-17 15:02:54 +020089 char buf[16 * NUM_WLAN_STA_FLAGS], *pos = buf;
90 char *end = buf + sizeof(buf) - 1;
Jiri Bence9f207f2007-05-05 11:46:38 -070091 struct sta_info *sta = file->private_data;
Johannes Bergc84387d2016-03-17 15:02:54 +020092 unsigned int flg;
Johannes Bergc2c98fd2011-09-29 16:04:36 +020093
Johannes Bergc84387d2016-03-17 15:02:54 +020094 BUILD_BUG_ON(ARRAY_SIZE(sta_flag_names) != NUM_WLAN_STA_FLAGS);
Johannes Berg5bade102011-09-29 16:04:37 +020095
Johannes Bergc84387d2016-03-17 15:02:54 +020096 for (flg = 0; flg < NUM_WLAN_STA_FLAGS; flg++) {
97 if (test_sta_flag(sta, flg))
98 pos += scnprintf(pos, end - pos, "%s\n",
99 sta_flag_names[flg]);
100 }
101
102 return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
Jiri Bence9f207f2007-05-05 11:46:38 -0700103}
104STA_OPS(flags);
105
106static ssize_t sta_num_ps_buf_frames_read(struct file *file,
107 char __user *userbuf,
108 size_t count, loff_t *ppos)
109{
Jiri Bence9f207f2007-05-05 11:46:38 -0700110 struct sta_info *sta = file->private_data;
Johannes Berg948d8872011-09-29 16:04:29 +0200111 char buf[17*IEEE80211_NUM_ACS], *p = buf;
112 int ac;
113
114 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
115 p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
116 skb_queue_len(&sta->ps_tx_buf[ac]) +
117 skb_queue_len(&sta->tx_filtered[ac]));
118 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
Jiri Bence9f207f2007-05-05 11:46:38 -0700119}
120STA_OPS(num_ps_buf_frames);
121
Jiri Bence9f207f2007-05-05 11:46:38 -0700122static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
123 size_t count, loff_t *ppos)
124{
Johannes Berg5a306f52012-11-14 23:22:21 +0100125 char buf[15*IEEE80211_NUM_TIDS], *p = buf;
Jiri Bence9f207f2007-05-05 11:46:38 -0700126 int i;
127 struct sta_info *sta = file->private_data;
Johannes Berg5a306f52012-11-14 23:22:21 +0100128 for (i = 0; i < IEEE80211_NUM_TIDS; i++)
Jiri Bence9f207f2007-05-05 11:46:38 -0700129 p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
Zhu Yiba9b07d2007-07-27 15:43:23 +0200130 le16_to_cpu(sta->last_seq_ctrl[i]));
Jiri Bence9f207f2007-05-05 11:46:38 -0700131 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
132 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
133}
134STA_OPS(last_seq_ctrl);
135
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200136static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
137 size_t count, loff_t *ppos)
138{
Johannes Berg5a306f52012-11-14 23:22:21 +0100139 char buf[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200140 int i;
141 struct sta_info *sta = file->private_data;
Johannes Bergdd318572010-11-29 11:09:16 +0100142 struct tid_ampdu_rx *tid_rx;
143 struct tid_ampdu_tx *tid_tx;
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200144
Johannes Bergdd318572010-11-29 11:09:16 +0100145 rcu_read_lock();
146
Pavel Roskine0b20f12010-01-30 19:55:27 -0500147 p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
Johannes Berg386aa232009-06-17 17:28:45 +0200148 sta->ampdu_mlme.dialog_token_allocator + 1);
Pavel Roskine0b20f12010-01-30 19:55:27 -0500149 p += scnprintf(p, sizeof(buf) + buf - p,
Johannes Berg14b058b2014-08-05 09:34:05 +0200150 "TID\t\tRX\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200151
Johannes Berg5a306f52012-11-14 23:22:21 +0100152 for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
Johannes Bergdd318572010-11-29 11:09:16 +0100153 tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
154 tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
155
156 p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
157 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
Pavel Roskine0b20f12010-01-30 19:55:27 -0500158 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
Johannes Bergdd318572010-11-29 11:09:16 +0100159 tid_rx ? tid_rx->dialog_token : 0);
160 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
161 tid_rx ? tid_rx->ssn : 0);
162
163 p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
164 p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
165 tid_tx ? tid_tx->dialog_token : 0);
Pavel Roskine0b20f12010-01-30 19:55:27 -0500166 p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
Johannes Bergdd318572010-11-29 11:09:16 +0100167 tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
Pavel Roskine0b20f12010-01-30 19:55:27 -0500168 p += scnprintf(p, sizeof(buf) + buf - p, "\n");
Johannes Berg386aa232009-06-17 17:28:45 +0200169 }
Johannes Bergdd318572010-11-29 11:09:16 +0100170 rcu_read_unlock();
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200171
172 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
173}
Johannes Berga75b4362010-05-01 18:53:51 +0200174
175static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
176 size_t count, loff_t *ppos)
177{
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200178 char _buf[25] = {}, *buf = _buf;
Johannes Berga75b4362010-05-01 18:53:51 +0200179 struct sta_info *sta = file->private_data;
180 bool start, tx;
181 unsigned long tid;
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200182 char *pos;
183 int ret, timeout = 5000;
Johannes Berga75b4362010-05-01 18:53:51 +0200184
185 if (count > sizeof(_buf))
186 return -EINVAL;
187
188 if (copy_from_user(buf, userbuf, count))
189 return -EFAULT;
190
191 buf[sizeof(_buf) - 1] = '\0';
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200192 pos = buf;
193 buf = strsep(&pos, " ");
194 if (!buf)
Johannes Berga75b4362010-05-01 18:53:51 +0200195 return -EINVAL;
196
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200197 if (!strcmp(buf, "tx"))
198 tx = true;
199 else if (!strcmp(buf, "rx"))
200 tx = false;
201 else
202 return -EINVAL;
203
204 buf = strsep(&pos, " ");
205 if (!buf)
206 return -EINVAL;
207 if (!strcmp(buf, "start")) {
Johannes Berga75b4362010-05-01 18:53:51 +0200208 start = true;
209 if (!tx)
210 return -EINVAL;
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200211 } else if (!strcmp(buf, "stop")) {
Johannes Berga75b4362010-05-01 18:53:51 +0200212 start = false;
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200213 } else {
Johannes Berga75b4362010-05-01 18:53:51 +0200214 return -EINVAL;
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200215 }
216
217 buf = strsep(&pos, " ");
218 if (!buf)
219 return -EINVAL;
220 if (sscanf(buf, "timeout=%d", &timeout) == 1) {
221 buf = strsep(&pos, " ");
222 if (!buf || !tx || !start)
223 return -EINVAL;
224 }
Johannes Berga75b4362010-05-01 18:53:51 +0200225
Abhijit Pawar4b5511e2012-12-09 23:12:28 +0000226 ret = kstrtoul(buf, 0, &tid);
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200227 if (ret || tid >= IEEE80211_NUM_TIDS)
Johannes Berga75b4362010-05-01 18:53:51 +0200228 return -EINVAL;
229
230 if (tx) {
231 if (start)
Sara Sharon1e0bbeb2016-03-09 13:27:09 +0200232 ret = ieee80211_start_tx_ba_session(&sta->sta, tid,
233 timeout);
Johannes Berga75b4362010-05-01 18:53:51 +0200234 else
Johannes Berg6a8579d2010-05-27 14:41:07 +0200235 ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
Johannes Berga75b4362010-05-01 18:53:51 +0200236 } else {
Johannes Berg53f73c02010-10-05 19:37:40 +0200237 __ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
238 3, true);
Johannes Berga75b4362010-05-01 18:53:51 +0200239 ret = 0;
240 }
241
242 return ret ?: count;
243}
244STA_OPS_RW(agg_status);
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200245
Johannes Berg64491f02009-11-19 14:26:11 +0100246static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
247 size_t count, loff_t *ppos)
248{
Luis R. Rodriguez7db94e22009-12-07 14:54:45 -0500249#define PRINT_HT_CAP(_cond, _str) \
250 do { \
251 if (_cond) \
252 p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
253 } while (0)
Pavel Roskin4c82bf82010-01-30 19:55:09 -0500254 char buf[512], *p = buf;
Johannes Berg64491f02009-11-19 14:26:11 +0100255 int i;
256 struct sta_info *sta = file->private_data;
257 struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
258
259 p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
260 htc->ht_supported ? "" : "not ");
261 if (htc->ht_supported) {
Luis R. Rodriguezcb136f52009-12-07 14:01:28 -0500262 p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
Luis R. Rodriguez7db94e22009-12-07 14:54:45 -0500263
Luis R. Rodriguezc15cf5f2010-04-08 16:08:46 -0400264 PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
Luis R. Rodriguez7db94e22009-12-07 14:54:45 -0500265 PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
266 PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
267
268 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
269 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
270 PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
271
272 PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
273 PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
274 PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
275 PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
276
277 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
278 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
279 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
280 PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
281
282 PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
283
Luis R. Rodriguez7db94e22009-12-07 14:54:45 -0500284 PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
Ben Greear904603f2011-11-17 14:53:36 -0800285 "3839 bytes");
286 PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
Luis R. Rodriguez7db94e22009-12-07 14:54:45 -0500287 "7935 bytes");
288
289 /*
290 * For beacons and probe response this would mean the BSS
291 * does or does not allow the usage of DSSS/CCK HT40.
292 * Otherwise it means the STA does or does not use
293 * DSSS/CCK HT40.
294 */
295 PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
296 PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
297
298 /* BIT(13) is reserved */
299
300 PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
301
302 PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
303
Johannes Berg64491f02009-11-19 14:26:11 +0100304 p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
305 htc->ampdu_factor, htc->ampdu_density);
306 p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
Luis R. Rodriguez9da3e062009-12-07 15:57:50 -0500307
Johannes Berg64491f02009-11-19 14:26:11 +0100308 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
309 p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
310 htc->mcs.rx_mask[i]);
Luis R. Rodriguez9da3e062009-12-07 15:57:50 -0500311 p += scnprintf(p, sizeof(buf)+buf-p, "\n");
312
313 /* If not set this is meaningless */
314 if (le16_to_cpu(htc->mcs.rx_highest)) {
315 p += scnprintf(p, sizeof(buf)+buf-p,
316 "MCS rx highest: %d Mbps\n",
317 le16_to_cpu(htc->mcs.rx_highest));
318 }
319
Johannes Berg64491f02009-11-19 14:26:11 +0100320 p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
321 htc->mcs.tx_params);
322 }
323
324 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
325}
326STA_OPS(ht_capa);
327
Johannes Berg90fcba62013-03-01 13:36:24 +0100328static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
329 size_t count, loff_t *ppos)
330{
Ben Greear0bb7ed42016-05-13 11:29:33 -0700331 char buf[512], *p = buf;
Johannes Berg90fcba62013-03-01 13:36:24 +0100332 struct sta_info *sta = file->private_data;
333 struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
334
335 p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
336 vhtc->vht_supported ? "" : "not ");
337 if (vhtc->vht_supported) {
Ben Greear0bb7ed42016-05-13 11:29:33 -0700338 p += scnprintf(p, sizeof(buf) + buf - p, "cap: %#.8x\n",
339 vhtc->cap);
340#define PFLAG(a, b) \
341 do { \
342 if (vhtc->cap & IEEE80211_VHT_CAP_ ## a) \
343 p += scnprintf(p, sizeof(buf) + buf - p, \
344 "\t\t%s\n", b); \
345 } while (0)
346
347 switch (vhtc->cap & 0x3) {
348 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895:
349 p += scnprintf(p, sizeof(buf) + buf - p,
350 "\t\tMAX-MPDU-3895\n");
351 break;
352 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991:
353 p += scnprintf(p, sizeof(buf) + buf - p,
354 "\t\tMAX-MPDU-7991\n");
355 break;
356 case IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454:
357 p += scnprintf(p, sizeof(buf) + buf - p,
358 "\t\tMAX-MPDU-11454\n");
359 break;
360 default:
361 p += scnprintf(p, sizeof(buf) + buf - p,
362 "\t\tMAX-MPDU-UNKNOWN\n");
363 };
364 switch (vhtc->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) {
365 case 0:
366 p += scnprintf(p, sizeof(buf) + buf - p,
367 "\t\t80Mhz\n");
368 break;
369 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ:
370 p += scnprintf(p, sizeof(buf) + buf - p,
371 "\t\t160Mhz\n");
372 break;
373 case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ:
374 p += scnprintf(p, sizeof(buf) + buf - p,
375 "\t\t80+80Mhz\n");
376 break;
377 default:
378 p += scnprintf(p, sizeof(buf) + buf - p,
379 "\t\tUNKNOWN-MHZ: 0x%x\n",
380 (vhtc->cap >> 2) & 0x3);
381 };
382 PFLAG(RXLDPC, "RXLDPC");
383 PFLAG(SHORT_GI_80, "SHORT-GI-80");
384 PFLAG(SHORT_GI_160, "SHORT-GI-160");
385 PFLAG(TXSTBC, "TXSTBC");
386 p += scnprintf(p, sizeof(buf) + buf - p,
387 "\t\tRXSTBC_%d\n", (vhtc->cap >> 8) & 0x7);
388 PFLAG(SU_BEAMFORMER_CAPABLE, "SU-BEAMFORMER-CAPABLE");
389 PFLAG(SU_BEAMFORMEE_CAPABLE, "SU-BEAMFORMEE-CAPABLE");
390 p += scnprintf(p, sizeof(buf) + buf - p,
391 "\t\tBEAMFORMEE-STS: 0x%x\n",
392 (vhtc->cap & IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK) >>
393 IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
394 p += scnprintf(p, sizeof(buf) + buf - p,
395 "\t\tSOUNDING-DIMENSIONS: 0x%x\n",
396 (vhtc->cap & IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK)
397 >> IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT);
398 PFLAG(MU_BEAMFORMER_CAPABLE, "MU-BEAMFORMER-CAPABLE");
399 PFLAG(MU_BEAMFORMEE_CAPABLE, "MU-BEAMFORMEE-CAPABLE");
400 PFLAG(VHT_TXOP_PS, "TXOP-PS");
401 PFLAG(HTC_VHT, "HTC-VHT");
402 p += scnprintf(p, sizeof(buf) + buf - p,
403 "\t\tMPDU-LENGTH-EXPONENT: 0x%x\n",
404 (vhtc->cap & IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
405 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT);
406 PFLAG(VHT_LINK_ADAPTATION_VHT_UNSOL_MFB,
407 "LINK-ADAPTATION-VHT-UNSOL-MFB");
408 p += scnprintf(p, sizeof(buf) + buf - p,
409 "\t\tLINK-ADAPTATION-VHT-MRQ-MFB: 0x%x\n",
410 (vhtc->cap & IEEE80211_VHT_CAP_VHT_LINK_ADAPTATION_VHT_MRQ_MFB) >> 26);
411 PFLAG(RX_ANTENNA_PATTERN, "RX-ANTENNA-PATTERN");
412 PFLAG(TX_ANTENNA_PATTERN, "TX-ANTENNA-PATTERN");
Johannes Berg90fcba62013-03-01 13:36:24 +0100413
414 p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
415 le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
416 if (vhtc->vht_mcs.rx_highest)
417 p += scnprintf(p, sizeof(buf)+buf-p,
418 "MCS RX highest: %d Mbps\n",
419 le16_to_cpu(vhtc->vht_mcs.rx_highest));
420 p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
421 le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
422 if (vhtc->vht_mcs.tx_highest)
423 p += scnprintf(p, sizeof(buf)+buf-p,
424 "MCS TX highest: %d Mbps\n",
425 le16_to_cpu(vhtc->vht_mcs.tx_highest));
426 }
427
428 return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
429}
430STA_OPS(vht_capa);
431
Saravana1f2e6512012-11-29 19:54:19 +0530432
Jiri Bence9f207f2007-05-05 11:46:38 -0700433#define DEBUGFS_ADD(name) \
Johannes Berg7bcfaf22009-10-27 12:59:03 +0100434 debugfs_create_file(#name, 0400, \
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200435 sta->debugfs_dir, sta, &sta_ ##name## _ops);
Jiri Bence9f207f2007-05-05 11:46:38 -0700436
Felix Fietkau2826bcd2010-06-02 02:57:34 +0200437#define DEBUGFS_ADD_COUNTER(name, field) \
438 if (sizeof(sta->field) == sizeof(u32)) \
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200439 debugfs_create_u32(#name, 0400, sta->debugfs_dir, \
Felix Fietkau2826bcd2010-06-02 02:57:34 +0200440 (u32 *) &sta->field); \
441 else \
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200442 debugfs_create_u64(#name, 0400, sta->debugfs_dir, \
Felix Fietkau2826bcd2010-06-02 02:57:34 +0200443 (u64 *) &sta->field);
Jiri Bence9f207f2007-05-05 11:46:38 -0700444
445void ieee80211_sta_debugfs_add(struct sta_info *sta)
446{
Sujith Manoharan77d2ece2012-11-20 08:46:02 +0530447 struct ieee80211_local *local = sta->local;
448 struct ieee80211_sub_if_data *sdata = sta->sdata;
Ben Greear295bafb2010-09-22 20:29:01 -0700449 struct dentry *stations_dir = sta->sdata->debugfs.subdir_stations;
Johannes Berg0c68ae262008-10-27 15:56:10 -0700450 u8 mac[3*ETH_ALEN];
Jiri Bence9f207f2007-05-05 11:46:38 -0700451
452 if (!stations_dir)
453 return;
454
Johannes Berg0c68ae262008-10-27 15:56:10 -0700455 snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
Jiri Bence9f207f2007-05-05 11:46:38 -0700456
Johannes Berg63044e92008-10-07 12:04:29 +0200457 /*
458 * This might fail due to a race condition:
459 * When mac80211 unlinks a station, the debugfs entries
460 * remain, but it is already possible to link a new
461 * station with the same address which triggers adding
462 * it to debugfs; therefore, if the old station isn't
463 * destroyed quickly enough the old station's debugfs
464 * dir might still be around.
465 */
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200466 sta->debugfs_dir = debugfs_create_dir(mac, stations_dir);
467 if (!sta->debugfs_dir)
Jiri Bence9f207f2007-05-05 11:46:38 -0700468 return;
469
470 DEBUGFS_ADD(flags);
471 DEBUGFS_ADD(num_ps_buf_frames);
Jiri Bence9f207f2007-05-05 11:46:38 -0700472 DEBUGFS_ADD(last_seq_ctrl);
Ron Rindjunskyeb2ba622008-01-28 14:07:20 +0200473 DEBUGFS_ADD(agg_status);
Johannes Berg64491f02009-11-19 14:26:11 +0100474 DEBUGFS_ADD(ht_capa);
Johannes Berg90fcba62013-03-01 13:36:24 +0100475 DEBUGFS_ADD(vht_capa);
Felix Fietkau2826bcd2010-06-02 02:57:34 +0200476
Johannes Berge5a9f8d2015-10-16 17:54:47 +0200477 DEBUGFS_ADD_COUNTER(rx_duplicates, rx_stats.num_duplicates);
478 DEBUGFS_ADD_COUNTER(rx_fragments, rx_stats.fragments);
479 DEBUGFS_ADD_COUNTER(tx_filtered, status_stats.filtered);
Sujith Manoharan77d2ece2012-11-20 08:46:02 +0530480
Johannes Berg7cf1f142013-07-12 10:40:31 +0200481 if (sizeof(sta->driver_buffered_tids) == sizeof(u32))
482 debugfs_create_x32("driver_buffered_tids", 0400,
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200483 sta->debugfs_dir,
Johannes Berg7cf1f142013-07-12 10:40:31 +0200484 (u32 *)&sta->driver_buffered_tids);
485 else
486 debugfs_create_x64("driver_buffered_tids", 0400,
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200487 sta->debugfs_dir,
Johannes Berg7cf1f142013-07-12 10:40:31 +0200488 (u64 *)&sta->driver_buffered_tids);
489
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200490 drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
Jiri Bence9f207f2007-05-05 11:46:38 -0700491}
492
493void ieee80211_sta_debugfs_remove(struct sta_info *sta)
494{
Sujith Manoharan77d2ece2012-11-20 08:46:02 +0530495 struct ieee80211_local *local = sta->local;
496 struct ieee80211_sub_if_data *sdata = sta->sdata;
497
Johannes Bergfc4a25c2016-04-05 11:59:05 +0200498 drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs_dir);
499 debugfs_remove_recursive(sta->debugfs_dir);
500 sta->debugfs_dir = NULL;
Jiri Bence9f207f2007-05-05 11:46:38 -0700501}