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712b6cf5 TW |
1 | /****************************************************************************** |
2 | * | |
3 | * GPL LICENSE SUMMARY | |
4 | * | |
5 | * Copyright(c) 2008 Intel Corporation. All rights reserved. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of version 2 of the GNU General Public License as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
19 | * USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution | |
22 | * in the file called LICENSE.GPL. | |
23 | * | |
24 | * Contact Information: | |
25 | * Tomas Winkler <tomas.winkler@intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | *****************************************************************************/ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/debugfs.h> | |
32 | ||
33 | #include <linux/ieee80211.h> | |
34 | #include <net/mac80211.h> | |
35 | ||
36 | ||
3e0d4cb1 | 37 | #include "iwl-dev.h" |
712b6cf5 | 38 | #include "iwl-debug.h" |
fee1247a | 39 | #include "iwl-core.h" |
3395f6e9 | 40 | #include "iwl-io.h" |
712b6cf5 TW |
41 | |
42 | ||
43 | /* create and remove of files */ | |
44 | #define DEBUGFS_ADD_DIR(name, parent) do { \ | |
45 | dbgfs->dir_##name = debugfs_create_dir(#name, parent); \ | |
46 | if (!(dbgfs->dir_##name)) \ | |
47 | goto err; \ | |
48 | } while (0) | |
49 | ||
50 | #define DEBUGFS_ADD_FILE(name, parent) do { \ | |
51 | dbgfs->dbgfs_##parent##_files.file_##name = \ | |
52 | debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \ | |
53 | &iwl_dbgfs_##name##_ops); \ | |
54 | if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \ | |
55 | goto err; \ | |
56 | } while (0) | |
57 | ||
445c2dff TW |
58 | #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ |
59 | dbgfs->dbgfs_##parent##_files.file_##name = \ | |
60 | debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr); \ | |
61 | if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)) \ | |
62 | goto err; \ | |
63 | } while (0) | |
64 | ||
712b6cf5 TW |
65 | #define DEBUGFS_REMOVE(name) do { \ |
66 | debugfs_remove(name); \ | |
67 | name = NULL; \ | |
68 | } while (0); | |
69 | ||
70 | /* file operation */ | |
71 | #define DEBUGFS_READ_FUNC(name) \ | |
72 | static ssize_t iwl_dbgfs_##name##_read(struct file *file, \ | |
73 | char __user *user_buf, \ | |
74 | size_t count, loff_t *ppos); | |
75 | ||
76 | #define DEBUGFS_WRITE_FUNC(name) \ | |
77 | static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ | |
78 | const char __user *user_buf, \ | |
79 | size_t count, loff_t *ppos); | |
80 | ||
81 | ||
82 | static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file) | |
83 | { | |
84 | file->private_data = inode->i_private; | |
85 | return 0; | |
86 | } | |
87 | ||
88 | #define DEBUGFS_READ_FILE_OPS(name) \ | |
89 | DEBUGFS_READ_FUNC(name); \ | |
90 | static const struct file_operations iwl_dbgfs_##name##_ops = { \ | |
91 | .read = iwl_dbgfs_##name##_read, \ | |
92 | .open = iwl_dbgfs_open_file_generic, \ | |
93 | }; | |
94 | ||
189a2b59 EK |
95 | #define DEBUGFS_WRITE_FILE_OPS(name) \ |
96 | DEBUGFS_WRITE_FUNC(name); \ | |
97 | static const struct file_operations iwl_dbgfs_##name##_ops = { \ | |
98 | .write = iwl_dbgfs_##name##_write, \ | |
99 | .open = iwl_dbgfs_open_file_generic, \ | |
100 | }; | |
101 | ||
102 | ||
712b6cf5 TW |
103 | #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ |
104 | DEBUGFS_READ_FUNC(name); \ | |
105 | DEBUGFS_WRITE_FUNC(name); \ | |
106 | static const struct file_operations iwl_dbgfs_##name##_ops = { \ | |
107 | .write = iwl_dbgfs_##name##_write, \ | |
108 | .read = iwl_dbgfs_##name##_read, \ | |
109 | .open = iwl_dbgfs_open_file_generic, \ | |
110 | }; | |
111 | ||
112 | ||
113 | static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file, | |
114 | char __user *user_buf, | |
115 | size_t count, loff_t *ppos) { | |
116 | ||
117 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
118 | char buf[256]; | |
119 | int pos = 0; | |
db0589f3 | 120 | const size_t bufsz = sizeof(buf); |
712b6cf5 | 121 | |
db0589f3 AK |
122 | pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
123 | priv->tx_stats[0].cnt); | |
124 | pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", | |
125 | priv->tx_stats[1].cnt); | |
126 | pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", | |
127 | priv->tx_stats[2].cnt); | |
712b6cf5 TW |
128 | |
129 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
130 | } | |
131 | ||
132 | static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file, | |
133 | char __user *user_buf, | |
134 | size_t count, loff_t *ppos) { | |
135 | ||
136 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
137 | char buf[256]; | |
138 | int pos = 0; | |
db0589f3 | 139 | const size_t bufsz = sizeof(buf); |
712b6cf5 | 140 | |
db0589f3 AK |
141 | pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
142 | priv->rx_stats[0].cnt); | |
143 | pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", | |
144 | priv->rx_stats[1].cnt); | |
145 | pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", | |
146 | priv->rx_stats[2].cnt); | |
712b6cf5 TW |
147 | |
148 | return simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
149 | } | |
150 | ||
151 | #define BYTE1_MASK 0x000000ff; | |
152 | #define BYTE2_MASK 0x0000ffff; | |
153 | #define BYTE3_MASK 0x00ffffff; | |
154 | static ssize_t iwl_dbgfs_sram_read(struct file *file, | |
155 | char __user *user_buf, | |
156 | size_t count, loff_t *ppos) | |
157 | { | |
158 | u32 val; | |
159 | char buf[1024]; | |
160 | ssize_t ret; | |
161 | int i; | |
162 | int pos = 0; | |
163 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
db0589f3 | 164 | const size_t bufsz = sizeof(buf); |
712b6cf5 TW |
165 | |
166 | printk(KERN_DEBUG "offset is: 0x%x\tlen is: 0x%x\n", | |
167 | priv->dbgfs->sram_offset, priv->dbgfs->sram_len); | |
168 | ||
3395f6e9 | 169 | iwl_grab_nic_access(priv); |
712b6cf5 | 170 | for (i = priv->dbgfs->sram_len; i > 0; i -= 4) { |
3395f6e9 | 171 | val = iwl_read_targ_mem(priv, priv->dbgfs->sram_offset + \ |
712b6cf5 TW |
172 | priv->dbgfs->sram_len - i); |
173 | if (i < 4) { | |
174 | switch (i) { | |
175 | case 1: | |
176 | val &= BYTE1_MASK; | |
177 | break; | |
178 | case 2: | |
179 | val &= BYTE2_MASK; | |
180 | break; | |
181 | case 3: | |
182 | val &= BYTE3_MASK; | |
183 | break; | |
184 | } | |
185 | } | |
db0589f3 | 186 | pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val); |
712b6cf5 | 187 | } |
db0589f3 | 188 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
3395f6e9 | 189 | iwl_release_nic_access(priv); |
712b6cf5 TW |
190 | |
191 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
192 | return ret; | |
193 | } | |
194 | ||
195 | static ssize_t iwl_dbgfs_sram_write(struct file *file, | |
196 | const char __user *user_buf, | |
197 | size_t count, loff_t *ppos) | |
198 | { | |
199 | struct iwl_priv *priv = file->private_data; | |
200 | char buf[64]; | |
201 | int buf_size; | |
202 | u32 offset, len; | |
203 | ||
204 | memset(buf, 0, sizeof(buf)); | |
205 | buf_size = min(count, sizeof(buf) - 1); | |
206 | if (copy_from_user(buf, user_buf, buf_size)) | |
207 | return -EFAULT; | |
208 | ||
209 | if (sscanf(buf, "%x,%x", &offset, &len) == 2) { | |
210 | priv->dbgfs->sram_offset = offset; | |
211 | priv->dbgfs->sram_len = len; | |
212 | } else { | |
213 | priv->dbgfs->sram_offset = 0; | |
214 | priv->dbgfs->sram_len = 0; | |
215 | } | |
216 | ||
217 | return count; | |
218 | } | |
219 | ||
220 | static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, | |
221 | size_t count, loff_t *ppos) | |
222 | { | |
223 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
6def9761 | 224 | struct iwl_station_entry *station; |
5425e490 | 225 | int max_sta = priv->hw_params.max_stations; |
712b6cf5 TW |
226 | char *buf; |
227 | int i, j, pos = 0; | |
228 | ssize_t ret; | |
229 | /* Add 30 for initial string */ | |
230 | const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations); | |
231 | DECLARE_MAC_BUF(mac); | |
232 | ||
233 | buf = kmalloc(bufsz, GFP_KERNEL); | |
234 | if(!buf) | |
235 | return -ENOMEM; | |
236 | ||
db0589f3 | 237 | pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n", |
712b6cf5 TW |
238 | priv->num_stations); |
239 | ||
240 | for (i = 0; i < max_sta; i++) { | |
241 | station = &priv->stations[i]; | |
242 | if (station->used) { | |
db0589f3 AK |
243 | pos += scnprintf(buf + pos, bufsz - pos, |
244 | "station %d:\ngeneral data:\n", i+1); | |
712b6cf5 | 245 | print_mac(mac, station->sta.sta.addr); |
db0589f3 | 246 | pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n", |
712b6cf5 | 247 | station->sta.sta.sta_id); |
db0589f3 | 248 | pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n", |
712b6cf5 | 249 | station->sta.mode); |
db0589f3 AK |
250 | pos += scnprintf(buf + pos, bufsz - pos, |
251 | "flags: 0x%x\n", | |
712b6cf5 | 252 | station->sta.station_flags_msk); |
db0589f3 AK |
253 | pos += scnprintf(buf + pos, bufsz - pos, |
254 | "ps_status: %u\n", station->ps_status); | |
255 | pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n"); | |
256 | pos += scnprintf(buf + pos, bufsz - pos, | |
344234de DM |
257 | "seq_num\t\ttxq_id"); |
258 | #ifdef CONFIG_IWL4965_HT | |
db0589f3 | 259 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 260 | "\tframe_count\twait_for_ba\t"); |
db0589f3 AK |
261 | pos += scnprintf(buf + pos, bufsz - pos, |
262 | "start_idx\tbitmap0\t"); | |
263 | pos += scnprintf(buf + pos, bufsz - pos, | |
344234de DM |
264 | "bitmap1\trate_n_flags"); |
265 | #endif | |
266 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); | |
712b6cf5 TW |
267 | |
268 | for (j = 0; j < MAX_TID_COUNT; j++) { | |
db0589f3 | 269 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 270 | "[%d]:\t\t%u", j, |
db0589f3 | 271 | station->tid[j].seq_number); |
344234de | 272 | #ifdef CONFIG_IWL4965_HT |
db0589f3 | 273 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 274 | "\t%u\t\t%u\t\t%u\t\t", |
712b6cf5 TW |
275 | station->tid[j].agg.txq_id, |
276 | station->tid[j].agg.frame_count, | |
277 | station->tid[j].agg.wait_for_ba); | |
db0589f3 | 278 | pos += scnprintf(buf + pos, bufsz - pos, |
344234de | 279 | "%u\t%llu\t%u", |
712b6cf5 | 280 | station->tid[j].agg.start_idx, |
16788599 | 281 | (unsigned long long)station->tid[j].agg.bitmap, |
712b6cf5 | 282 | station->tid[j].agg.rate_n_flags); |
344234de DM |
283 | #endif |
284 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); | |
712b6cf5 | 285 | } |
db0589f3 | 286 | pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
712b6cf5 TW |
287 | } |
288 | } | |
289 | ||
290 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
291 | kfree(buf); | |
292 | return ret; | |
293 | } | |
294 | ||
8dd266ef TW |
295 | static ssize_t iwl_dbgfs_eeprom_read(struct file *file, |
296 | char __user *user_buf, | |
297 | size_t count, | |
298 | loff_t *ppos) | |
299 | { | |
300 | ssize_t ret; | |
301 | struct iwl_priv *priv = (struct iwl_priv *)file->private_data; | |
302 | int pos = 0, ofs = 0, buf_size = 0; | |
303 | const u8 *ptr; | |
304 | char *buf; | |
305 | size_t eeprom_len = priv->cfg->eeprom_size; | |
306 | buf_size = 4 * eeprom_len + 256; | |
307 | ||
308 | if (eeprom_len % 16) { | |
309 | IWL_ERROR("EEPROM size is not multiple of 16.\n"); | |
310 | return -ENODATA; | |
311 | } | |
312 | ||
313 | /* 4 characters for byte 0xYY */ | |
314 | buf = kzalloc(buf_size, GFP_KERNEL); | |
315 | if (!buf) { | |
316 | IWL_ERROR("Can not allocate Buffer\n"); | |
317 | return -ENOMEM; | |
318 | } | |
319 | ||
320 | ptr = priv->eeprom; | |
321 | for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) { | |
322 | pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs); | |
323 | hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos, | |
324 | buf_size - pos, 0); | |
325 | pos += strlen(buf); | |
326 | if (buf_size - pos > 0) | |
327 | buf[pos++] = '\n'; | |
328 | } | |
329 | ||
330 | ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); | |
331 | kfree(buf); | |
332 | return ret; | |
333 | } | |
712b6cf5 | 334 | |
189a2b59 EK |
335 | static ssize_t iwl_dbgfs_log_event_write(struct file *file, |
336 | const char __user *user_buf, | |
337 | size_t count, loff_t *ppos) | |
338 | { | |
339 | struct iwl_priv *priv = file->private_data; | |
340 | u32 event_log_flag; | |
341 | char buf[8]; | |
342 | int buf_size; | |
343 | ||
344 | memset(buf, 0, sizeof(buf)); | |
345 | buf_size = min(count, sizeof(buf) - 1); | |
346 | if (copy_from_user(buf, user_buf, buf_size)) | |
347 | return -EFAULT; | |
348 | if (sscanf(buf, "%d", &event_log_flag) != 1) | |
349 | return -EFAULT; | |
350 | if (event_log_flag == 1) | |
351 | iwl_dump_nic_event_log(priv); | |
352 | ||
353 | return count; | |
354 | } | |
355 | ||
712b6cf5 | 356 | DEBUGFS_READ_WRITE_FILE_OPS(sram); |
189a2b59 | 357 | DEBUGFS_WRITE_FILE_OPS(log_event); |
8dd266ef | 358 | DEBUGFS_READ_FILE_OPS(eeprom); |
712b6cf5 TW |
359 | DEBUGFS_READ_FILE_OPS(stations); |
360 | DEBUGFS_READ_FILE_OPS(rx_statistics); | |
361 | DEBUGFS_READ_FILE_OPS(tx_statistics); | |
362 | ||
363 | /* | |
364 | * Create the debugfs files and directories | |
365 | * | |
366 | */ | |
367 | int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) | |
368 | { | |
369 | struct iwl_debugfs *dbgfs; | |
370 | ||
371 | dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL); | |
372 | if (!dbgfs) { | |
373 | goto err; | |
374 | } | |
375 | ||
376 | priv->dbgfs = dbgfs; | |
377 | dbgfs->name = name; | |
378 | dbgfs->dir_drv = debugfs_create_dir(name, NULL); | |
379 | if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)){ | |
380 | goto err; | |
381 | } | |
382 | ||
383 | DEBUGFS_ADD_DIR(data, dbgfs->dir_drv); | |
445c2dff | 384 | DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv); |
8dd266ef | 385 | DEBUGFS_ADD_FILE(eeprom, data); |
712b6cf5 | 386 | DEBUGFS_ADD_FILE(sram, data); |
189a2b59 | 387 | DEBUGFS_ADD_FILE(log_event, data); |
712b6cf5 TW |
388 | DEBUGFS_ADD_FILE(stations, data); |
389 | DEBUGFS_ADD_FILE(rx_statistics, data); | |
390 | DEBUGFS_ADD_FILE(tx_statistics, data); | |
445c2dff TW |
391 | #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB |
392 | DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); | |
393 | DEBUGFS_ADD_BOOL(disable_chain_noise, rf, | |
394 | &priv->disable_chain_noise_cal); | |
395 | #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ | |
712b6cf5 TW |
396 | return 0; |
397 | ||
398 | err: | |
399 | IWL_ERROR("Can't open the debugfs directory\n"); | |
400 | iwl_dbgfs_unregister(priv); | |
401 | return -ENOENT; | |
402 | } | |
403 | EXPORT_SYMBOL(iwl_dbgfs_register); | |
404 | ||
405 | /** | |
406 | * Remove the debugfs files and directories | |
407 | * | |
408 | */ | |
409 | void iwl_dbgfs_unregister(struct iwl_priv *priv) | |
410 | { | |
411 | if (!(priv->dbgfs)) | |
412 | return; | |
413 | ||
8dd266ef | 414 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_eeprom); |
712b6cf5 TW |
415 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics); |
416 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics); | |
417 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram); | |
189a2b59 | 418 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event); |
712b6cf5 TW |
419 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations); |
420 | DEBUGFS_REMOVE(priv->dbgfs->dir_data); | |
445c2dff TW |
421 | #ifdef CONFIG_IWLWIFI_RUN_TIME_CALIB |
422 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); | |
423 | DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise); | |
424 | #endif /* CONFIG_IWLWIFI_RUN_TIME_CALIB */ | |
425 | DEBUGFS_REMOVE(priv->dbgfs->dir_rf); | |
712b6cf5 TW |
426 | DEBUGFS_REMOVE(priv->dbgfs->dir_drv); |
427 | kfree(priv->dbgfs); | |
428 | priv->dbgfs = NULL; | |
429 | } | |
430 | EXPORT_SYMBOL(iwl_dbgfs_unregister); | |
431 | ||
432 | ||
445c2dff | 433 |