1 // SPDX-License-Identifier: GPL-2.0-only
2 /******************************************************************************
3  *
4  * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
5  * Copyright (C) 2018 Intel Corporation
6  *****************************************************************************/
7 
8 #include <linux/slab.h>
9 #include <linux/kernel.h>
10 #include <linux/module.h>
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include <net/mac80211.h>
14 
15 #include "iwl-debug.h"
16 #include "iwl-trans.h"
17 #include "iwl-io.h"
18 #include "dev.h"
19 #include "agn.h"
20 
21 /* create and remove of files */
22 #define DEBUGFS_ADD_FILE(name, parent, mode) do {			\
23 	debugfs_create_file(#name, mode, parent, priv,			\
24 			    &iwl_dbgfs_##name##_ops);			\
25 } while (0)
26 
27 /* file operation */
28 #define DEBUGFS_READ_FILE_OPS(name)                                     \
29 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
30 	.read = iwl_dbgfs_##name##_read,				\
31 	.open = simple_open,						\
32 	.llseek = generic_file_llseek,					\
33 };
34 
35 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
36 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
37 	.write = iwl_dbgfs_##name##_write,                              \
38 	.open = simple_open,						\
39 	.llseek = generic_file_llseek,					\
40 };
41 
42 
43 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
44 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
45 	.write = iwl_dbgfs_##name##_write,                              \
46 	.read = iwl_dbgfs_##name##_read,                                \
47 	.open = simple_open,						\
48 	.llseek = generic_file_llseek,					\
49 };
50 
iwl_dbgfs_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)51 static ssize_t iwl_dbgfs_sram_read(struct file *file,
52 					char __user *user_buf,
53 					size_t count, loff_t *ppos)
54 {
55 	u32 val = 0;
56 	char *buf;
57 	ssize_t ret;
58 	int i = 0;
59 	bool device_format = false;
60 	int offset = 0;
61 	int len = 0;
62 	int pos = 0;
63 	int sram;
64 	struct iwl_priv *priv = file->private_data;
65 	const struct fw_img *img;
66 	size_t bufsz;
67 
68 	if (!iwl_is_ready_rf(priv))
69 		return -EAGAIN;
70 
71 	/* default is to dump the entire data segment */
72 	if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
73 		priv->dbgfs_sram_offset = 0x800000;
74 		if (!priv->ucode_loaded)
75 			return -EINVAL;
76 		img = &priv->fw->img[priv->cur_ucode];
77 		priv->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
78 	}
79 	len = priv->dbgfs_sram_len;
80 
81 	if (len == -4) {
82 		device_format = true;
83 		len = 4;
84 	}
85 
86 	bufsz =  50 + len * 4;
87 	buf = kmalloc(bufsz, GFP_KERNEL);
88 	if (!buf)
89 		return -ENOMEM;
90 
91 	pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
92 			 len);
93 	pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
94 			priv->dbgfs_sram_offset);
95 
96 	/* adjust sram address since reads are only on even u32 boundaries */
97 	offset = priv->dbgfs_sram_offset & 0x3;
98 	sram = priv->dbgfs_sram_offset & ~0x3;
99 
100 	/* read the first u32 from sram */
101 	val = iwl_trans_read_mem32(priv->trans, sram);
102 
103 	for (; len; len--) {
104 		/* put the address at the start of every line */
105 		if (i == 0)
106 			pos += scnprintf(buf + pos, bufsz - pos,
107 				"%08X: ", sram + offset);
108 
109 		if (device_format)
110 			pos += scnprintf(buf + pos, bufsz - pos,
111 				"%02x", (val >> (8 * (3 - offset))) & 0xff);
112 		else
113 			pos += scnprintf(buf + pos, bufsz - pos,
114 				"%02x ", (val >> (8 * offset)) & 0xff);
115 
116 		/* if all bytes processed, read the next u32 from sram */
117 		if (++offset == 4) {
118 			sram += 4;
119 			offset = 0;
120 			val = iwl_trans_read_mem32(priv->trans, sram);
121 		}
122 
123 		/* put in extra spaces and split lines for human readability */
124 		if (++i == 16) {
125 			i = 0;
126 			pos += scnprintf(buf + pos, bufsz - pos, "\n");
127 		} else if (!(i & 7)) {
128 			pos += scnprintf(buf + pos, bufsz - pos, "   ");
129 		} else if (!(i & 3)) {
130 			pos += scnprintf(buf + pos, bufsz - pos, " ");
131 		}
132 	}
133 	if (i)
134 		pos += scnprintf(buf + pos, bufsz - pos, "\n");
135 
136 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
137 	kfree(buf);
138 	return ret;
139 }
140 
iwl_dbgfs_sram_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)141 static ssize_t iwl_dbgfs_sram_write(struct file *file,
142 					const char __user *user_buf,
143 					size_t count, loff_t *ppos)
144 {
145 	struct iwl_priv *priv = file->private_data;
146 	char buf[64];
147 	int buf_size;
148 	u32 offset, len;
149 
150 	memset(buf, 0, sizeof(buf));
151 	buf_size = min(count, sizeof(buf) -  1);
152 	if (copy_from_user(buf, user_buf, buf_size))
153 		return -EFAULT;
154 
155 	if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
156 		priv->dbgfs_sram_offset = offset;
157 		priv->dbgfs_sram_len = len;
158 	} else if (sscanf(buf, "%x", &offset) == 1) {
159 		priv->dbgfs_sram_offset = offset;
160 		priv->dbgfs_sram_len = -4;
161 	} else {
162 		priv->dbgfs_sram_offset = 0;
163 		priv->dbgfs_sram_len = 0;
164 	}
165 
166 	return count;
167 }
168 
iwl_dbgfs_wowlan_sram_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)169 static ssize_t iwl_dbgfs_wowlan_sram_read(struct file *file,
170 					  char __user *user_buf,
171 					  size_t count, loff_t *ppos)
172 {
173 	struct iwl_priv *priv = file->private_data;
174 	const struct fw_img *img = &priv->fw->img[IWL_UCODE_WOWLAN];
175 
176 	if (!priv->wowlan_sram)
177 		return -ENODATA;
178 
179 	return simple_read_from_buffer(user_buf, count, ppos,
180 				       priv->wowlan_sram,
181 				       img->sec[IWL_UCODE_SECTION_DATA].len);
182 }
iwl_dbgfs_stations_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)183 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
184 					size_t count, loff_t *ppos)
185 {
186 	struct iwl_priv *priv = file->private_data;
187 	struct iwl_station_entry *station;
188 	struct iwl_tid_data *tid_data;
189 	char *buf;
190 	int i, j, pos = 0;
191 	ssize_t ret;
192 	/* Add 30 for initial string */
193 	const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
194 
195 	buf = kmalloc(bufsz, GFP_KERNEL);
196 	if (!buf)
197 		return -ENOMEM;
198 
199 	pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
200 			priv->num_stations);
201 
202 	for (i = 0; i < IWLAGN_STATION_COUNT; i++) {
203 		station = &priv->stations[i];
204 		if (!station->used)
205 			continue;
206 		pos += scnprintf(buf + pos, bufsz - pos,
207 				 "station %d - addr: %pM, flags: %#x\n",
208 				 i, station->sta.sta.addr,
209 				 station->sta.station_flags_msk);
210 		pos += scnprintf(buf + pos, bufsz - pos,
211 				"TID seqno  next_rclmd "
212 				"rate_n_flags state txq\n");
213 
214 		for (j = 0; j < IWL_MAX_TID_COUNT; j++) {
215 			tid_data = &priv->tid_data[i][j];
216 			pos += scnprintf(buf + pos, bufsz - pos,
217 				"%d:  0x%.4x 0x%.4x     0x%.8x   "
218 				"%d     %.2d",
219 				j, tid_data->seq_number,
220 				tid_data->next_reclaimed,
221 				tid_data->agg.rate_n_flags,
222 				tid_data->agg.state,
223 				tid_data->agg.txq_id);
224 
225 			if (tid_data->agg.wait_for_ba)
226 				pos += scnprintf(buf + pos, bufsz - pos,
227 						 " - waitforba");
228 			pos += scnprintf(buf + pos, bufsz - pos, "\n");
229 		}
230 
231 		pos += scnprintf(buf + pos, bufsz - pos, "\n");
232 	}
233 
234 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
235 	kfree(buf);
236 	return ret;
237 }
238 
iwl_dbgfs_nvm_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)239 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
240 				       char __user *user_buf,
241 				       size_t count,
242 				       loff_t *ppos)
243 {
244 	ssize_t ret;
245 	struct iwl_priv *priv = file->private_data;
246 	int pos = 0, ofs = 0, buf_size = 0;
247 	const u8 *ptr;
248 	char *buf;
249 	u16 nvm_ver;
250 	size_t eeprom_len = priv->eeprom_blob_size;
251 	buf_size = 4 * eeprom_len + 256;
252 
253 	if (eeprom_len % 16)
254 		return -ENODATA;
255 
256 	ptr = priv->eeprom_blob;
257 	if (!ptr)
258 		return -ENOMEM;
259 
260 	/* 4 characters for byte 0xYY */
261 	buf = kzalloc(buf_size, GFP_KERNEL);
262 	if (!buf)
263 		return -ENOMEM;
264 
265 	nvm_ver = priv->nvm_data->nvm_version;
266 	pos += scnprintf(buf + pos, buf_size - pos,
267 			 "NVM version: 0x%x\n", nvm_ver);
268 	for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
269 		pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x %16ph\n",
270 				 ofs, ptr + ofs);
271 	}
272 
273 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
274 	kfree(buf);
275 	return ret;
276 }
277 
iwl_dbgfs_channels_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)278 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
279 				       size_t count, loff_t *ppos)
280 {
281 	struct iwl_priv *priv = file->private_data;
282 	struct ieee80211_channel *channels = NULL;
283 	const struct ieee80211_supported_band *supp_band = NULL;
284 	int pos = 0, i, bufsz = PAGE_SIZE;
285 	char *buf;
286 	ssize_t ret;
287 
288 	buf = kzalloc(bufsz, GFP_KERNEL);
289 	if (!buf)
290 		return -ENOMEM;
291 
292 	supp_band = iwl_get_hw_mode(priv, NL80211_BAND_2GHZ);
293 	if (supp_band) {
294 		channels = supp_band->channels;
295 
296 		pos += scnprintf(buf + pos, bufsz - pos,
297 				"Displaying %d channels in 2.4GHz band 802.11bg):\n",
298 				supp_band->n_channels);
299 
300 		for (i = 0; i < supp_band->n_channels; i++)
301 			pos += scnprintf(buf + pos, bufsz - pos,
302 					"%d: %ddBm: BSS%s%s, %s.\n",
303 					channels[i].hw_value,
304 					channels[i].max_power,
305 					channels[i].flags & IEEE80211_CHAN_RADAR ?
306 					" (IEEE 802.11h required)" : "",
307 					((channels[i].flags & IEEE80211_CHAN_NO_IR)
308 					|| (channels[i].flags &
309 					IEEE80211_CHAN_RADAR)) ? "" :
310 					", IBSS",
311 					channels[i].flags &
312 					IEEE80211_CHAN_NO_IR ?
313 					"passive only" : "active/passive");
314 	}
315 	supp_band = iwl_get_hw_mode(priv, NL80211_BAND_5GHZ);
316 	if (supp_band) {
317 		channels = supp_band->channels;
318 
319 		pos += scnprintf(buf + pos, bufsz - pos,
320 				"Displaying %d channels in 5.2GHz band (802.11a)\n",
321 				supp_band->n_channels);
322 
323 		for (i = 0; i < supp_band->n_channels; i++)
324 			pos += scnprintf(buf + pos, bufsz - pos,
325 					"%d: %ddBm: BSS%s%s, %s.\n",
326 					channels[i].hw_value,
327 					channels[i].max_power,
328 					channels[i].flags & IEEE80211_CHAN_RADAR ?
329 					" (IEEE 802.11h required)" : "",
330 					((channels[i].flags & IEEE80211_CHAN_NO_IR)
331 					|| (channels[i].flags &
332 					IEEE80211_CHAN_RADAR)) ? "" :
333 					", IBSS",
334 					channels[i].flags &
335 					IEEE80211_CHAN_NO_IR ?
336 					"passive only" : "active/passive");
337 	}
338 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
339 	kfree(buf);
340 	return ret;
341 }
342 
iwl_dbgfs_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)343 static ssize_t iwl_dbgfs_status_read(struct file *file,
344 						char __user *user_buf,
345 						size_t count, loff_t *ppos) {
346 
347 	struct iwl_priv *priv = file->private_data;
348 	char buf[512];
349 	int pos = 0;
350 	const size_t bufsz = sizeof(buf);
351 
352 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
353 		test_bit(STATUS_RF_KILL_HW, &priv->status));
354 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
355 		test_bit(STATUS_CT_KILL, &priv->status));
356 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
357 		test_bit(STATUS_ALIVE, &priv->status));
358 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
359 		test_bit(STATUS_READY, &priv->status));
360 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
361 		test_bit(STATUS_EXIT_PENDING, &priv->status));
362 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
363 		test_bit(STATUS_STATISTICS, &priv->status));
364 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
365 		test_bit(STATUS_SCANNING, &priv->status));
366 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
367 		test_bit(STATUS_SCAN_ABORTING, &priv->status));
368 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
369 		test_bit(STATUS_SCAN_HW, &priv->status));
370 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
371 		test_bit(STATUS_POWER_PMI, &priv->status));
372 	pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
373 		test_bit(STATUS_FW_ERROR, &priv->status));
374 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
375 }
376 
iwl_dbgfs_rx_handlers_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)377 static ssize_t iwl_dbgfs_rx_handlers_read(struct file *file,
378 					char __user *user_buf,
379 					size_t count, loff_t *ppos) {
380 
381 	struct iwl_priv *priv = file->private_data;
382 
383 	int pos = 0;
384 	int cnt = 0;
385 	char *buf;
386 	int bufsz = 24 * 64; /* 24 items * 64 char per item */
387 	ssize_t ret;
388 
389 	buf = kzalloc(bufsz, GFP_KERNEL);
390 	if (!buf)
391 		return -ENOMEM;
392 
393 	for (cnt = 0; cnt < REPLY_MAX; cnt++) {
394 		if (priv->rx_handlers_stats[cnt] > 0)
395 			pos += scnprintf(buf + pos, bufsz - pos,
396 				"\tRx handler[%36s]:\t\t %u\n",
397 				iwl_get_cmd_string(priv->trans, (u32)cnt),
398 				priv->rx_handlers_stats[cnt]);
399 	}
400 
401 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
402 	kfree(buf);
403 	return ret;
404 }
405 
iwl_dbgfs_rx_handlers_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)406 static ssize_t iwl_dbgfs_rx_handlers_write(struct file *file,
407 					 const char __user *user_buf,
408 					 size_t count, loff_t *ppos)
409 {
410 	struct iwl_priv *priv = file->private_data;
411 
412 	char buf[8];
413 	int buf_size;
414 	u32 reset_flag;
415 
416 	memset(buf, 0, sizeof(buf));
417 	buf_size = min(count, sizeof(buf) -  1);
418 	if (copy_from_user(buf, user_buf, buf_size))
419 		return -EFAULT;
420 	if (sscanf(buf, "%x", &reset_flag) != 1)
421 		return -EFAULT;
422 	if (reset_flag == 0)
423 		memset(&priv->rx_handlers_stats[0], 0,
424 			sizeof(priv->rx_handlers_stats));
425 
426 	return count;
427 }
428 
iwl_dbgfs_qos_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)429 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
430 				       size_t count, loff_t *ppos)
431 {
432 	struct iwl_priv *priv = file->private_data;
433 	struct iwl_rxon_context *ctx;
434 	int pos = 0, i;
435 	char buf[256 * NUM_IWL_RXON_CTX];
436 	const size_t bufsz = sizeof(buf);
437 
438 	for_each_context(priv, ctx) {
439 		pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
440 				 ctx->ctxid);
441 		for (i = 0; i < AC_NUM; i++) {
442 			pos += scnprintf(buf + pos, bufsz - pos,
443 				"\tcw_min\tcw_max\taifsn\ttxop\n");
444 			pos += scnprintf(buf + pos, bufsz - pos,
445 				"AC[%d]\t%u\t%u\t%u\t%u\n", i,
446 				ctx->qos_data.def_qos_parm.ac[i].cw_min,
447 				ctx->qos_data.def_qos_parm.ac[i].cw_max,
448 				ctx->qos_data.def_qos_parm.ac[i].aifsn,
449 				ctx->qos_data.def_qos_parm.ac[i].edca_txop);
450 		}
451 		pos += scnprintf(buf + pos, bufsz - pos, "\n");
452 	}
453 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
454 }
455 
iwl_dbgfs_thermal_throttling_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)456 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
457 				char __user *user_buf,
458 				size_t count, loff_t *ppos)
459 {
460 	struct iwl_priv *priv = file->private_data;
461 	struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
462 	struct iwl_tt_restriction *restriction;
463 	char buf[100];
464 	int pos = 0;
465 	const size_t bufsz = sizeof(buf);
466 
467 	pos += scnprintf(buf + pos, bufsz - pos,
468 			"Thermal Throttling Mode: %s\n",
469 			tt->advanced_tt ? "Advance" : "Legacy");
470 	pos += scnprintf(buf + pos, bufsz - pos,
471 			"Thermal Throttling State: %d\n",
472 			tt->state);
473 	if (tt->advanced_tt) {
474 		restriction = tt->restriction + tt->state;
475 		pos += scnprintf(buf + pos, bufsz - pos,
476 				"Tx mode: %d\n",
477 				restriction->tx_stream);
478 		pos += scnprintf(buf + pos, bufsz - pos,
479 				"Rx mode: %d\n",
480 				restriction->rx_stream);
481 		pos += scnprintf(buf + pos, bufsz - pos,
482 				"HT mode: %d\n",
483 				restriction->is_ht);
484 	}
485 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
486 }
487 
iwl_dbgfs_disable_ht40_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)488 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
489 					 const char __user *user_buf,
490 					 size_t count, loff_t *ppos)
491 {
492 	struct iwl_priv *priv = file->private_data;
493 	char buf[8];
494 	int buf_size;
495 	int ht40;
496 
497 	memset(buf, 0, sizeof(buf));
498 	buf_size = min(count, sizeof(buf) -  1);
499 	if (copy_from_user(buf, user_buf, buf_size))
500 		return -EFAULT;
501 	if (sscanf(buf, "%d", &ht40) != 1)
502 		return -EFAULT;
503 	if (!iwl_is_any_associated(priv))
504 		priv->disable_ht40 = ht40 ? true : false;
505 	else
506 		return -EINVAL;
507 
508 	return count;
509 }
510 
iwl_dbgfs_disable_ht40_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)511 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
512 					 char __user *user_buf,
513 					 size_t count, loff_t *ppos)
514 {
515 	struct iwl_priv *priv = file->private_data;
516 	char buf[100];
517 	int pos = 0;
518 	const size_t bufsz = sizeof(buf);
519 
520 	pos += scnprintf(buf + pos, bufsz - pos,
521 			"11n 40MHz Mode: %s\n",
522 			priv->disable_ht40 ? "Disabled" : "Enabled");
523 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
524 }
525 
iwl_dbgfs_temperature_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)526 static ssize_t iwl_dbgfs_temperature_read(struct file *file,
527 					 char __user *user_buf,
528 					 size_t count, loff_t *ppos)
529 {
530 	struct iwl_priv *priv = file->private_data;
531 	char buf[8];
532 	int pos = 0;
533 	const size_t bufsz = sizeof(buf);
534 
535 	pos += scnprintf(buf + pos, bufsz - pos, "%d\n", priv->temperature);
536 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
537 }
538 
539 
iwl_dbgfs_sleep_level_override_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)540 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
541 						    const char __user *user_buf,
542 						    size_t count, loff_t *ppos)
543 {
544 	struct iwl_priv *priv = file->private_data;
545 	char buf[8];
546 	int buf_size;
547 	int value;
548 
549 	memset(buf, 0, sizeof(buf));
550 	buf_size = min(count, sizeof(buf) -  1);
551 	if (copy_from_user(buf, user_buf, buf_size))
552 		return -EFAULT;
553 
554 	if (sscanf(buf, "%d", &value) != 1)
555 		return -EINVAL;
556 
557 	/*
558 	 * Our users expect 0 to be "CAM", but 0 isn't actually
559 	 * valid here. However, let's not confuse them and present
560 	 * IWL_POWER_INDEX_1 as "1", not "0".
561 	 */
562 	if (value == 0)
563 		return -EINVAL;
564 	else if (value > 0)
565 		value -= 1;
566 
567 	if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
568 		return -EINVAL;
569 
570 	if (!iwl_is_ready_rf(priv))
571 		return -EAGAIN;
572 
573 	priv->power_data.debug_sleep_level_override = value;
574 
575 	mutex_lock(&priv->mutex);
576 	iwl_power_update_mode(priv, true);
577 	mutex_unlock(&priv->mutex);
578 
579 	return count;
580 }
581 
iwl_dbgfs_sleep_level_override_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)582 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
583 						   char __user *user_buf,
584 						   size_t count, loff_t *ppos)
585 {
586 	struct iwl_priv *priv = file->private_data;
587 	char buf[10];
588 	int pos, value;
589 	const size_t bufsz = sizeof(buf);
590 
591 	/* see the write function */
592 	value = priv->power_data.debug_sleep_level_override;
593 	if (value >= 0)
594 		value += 1;
595 
596 	pos = scnprintf(buf, bufsz, "%d\n", value);
597 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
598 }
599 
iwl_dbgfs_current_sleep_command_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)600 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
601 						    char __user *user_buf,
602 						    size_t count, loff_t *ppos)
603 {
604 	struct iwl_priv *priv = file->private_data;
605 	char buf[200];
606 	int pos = 0, i;
607 	const size_t bufsz = sizeof(buf);
608 	struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
609 
610 	pos += scnprintf(buf + pos, bufsz - pos,
611 			 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
612 	pos += scnprintf(buf + pos, bufsz - pos,
613 			 "RX/TX timeout: %d/%d usec\n",
614 			 le32_to_cpu(cmd->rx_data_timeout),
615 			 le32_to_cpu(cmd->tx_data_timeout));
616 	for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
617 		pos += scnprintf(buf + pos, bufsz - pos,
618 				 "sleep_interval[%d]: %d\n", i,
619 				 le32_to_cpu(cmd->sleep_interval[i]));
620 
621 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
622 }
623 
624 DEBUGFS_READ_WRITE_FILE_OPS(sram);
625 DEBUGFS_READ_FILE_OPS(wowlan_sram);
626 DEBUGFS_READ_FILE_OPS(nvm);
627 DEBUGFS_READ_FILE_OPS(stations);
628 DEBUGFS_READ_FILE_OPS(channels);
629 DEBUGFS_READ_FILE_OPS(status);
630 DEBUGFS_READ_WRITE_FILE_OPS(rx_handlers);
631 DEBUGFS_READ_FILE_OPS(qos);
632 DEBUGFS_READ_FILE_OPS(thermal_throttling);
633 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
634 DEBUGFS_READ_FILE_OPS(temperature);
635 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
636 DEBUGFS_READ_FILE_OPS(current_sleep_command);
637 
638 #define fmt_value	"  %-30s %10u\n"
639 #define fmt_hex		"  %-30s       0x%02X\n"
640 #define fmt_table	"  %-30s %10u  %10u  %10u  %10u\n"
641 #define fmt_header	"%-32s    current  cumulative       delta         max\n"
642 
iwl_statistics_flag(struct iwl_priv * priv,char * buf,int bufsz)643 static int iwl_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
644 {
645 	int p = 0;
646 	u32 flag;
647 
648 	lockdep_assert_held(&priv->statistics.lock);
649 
650 	flag = le32_to_cpu(priv->statistics.flag);
651 
652 	p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
653 	if (flag & UCODE_STATISTICS_CLEAR_MSK)
654 		p += scnprintf(buf + p, bufsz - p,
655 		"\tStatistics have been cleared\n");
656 	p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
657 		(flag & UCODE_STATISTICS_FREQUENCY_MSK)
658 		? "2.4 GHz" : "5.2 GHz");
659 	p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
660 		(flag & UCODE_STATISTICS_NARROW_BAND_MSK)
661 		 ? "enabled" : "disabled");
662 
663 	return p;
664 }
665 
iwl_dbgfs_ucode_rx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)666 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
667 					char __user *user_buf,
668 					size_t count, loff_t *ppos)
669 {
670 	struct iwl_priv *priv = file->private_data;
671 	int pos = 0;
672 	char *buf;
673 	int bufsz = sizeof(struct statistics_rx_phy) * 40 +
674 		    sizeof(struct statistics_rx_non_phy) * 40 +
675 		    sizeof(struct statistics_rx_ht_phy) * 40 + 400;
676 	ssize_t ret;
677 	struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
678 	struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
679 	struct statistics_rx_non_phy *general, *accum_general;
680 	struct statistics_rx_non_phy *delta_general, *max_general;
681 	struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
682 
683 	if (!iwl_is_alive(priv))
684 		return -EAGAIN;
685 
686 	buf = kzalloc(bufsz, GFP_KERNEL);
687 	if (!buf)
688 		return -ENOMEM;
689 
690 	/*
691 	 * the statistic information display here is based on
692 	 * the last statistics notification from uCode
693 	 * might not reflect the current uCode activity
694 	 */
695 	spin_lock_bh(&priv->statistics.lock);
696 	ofdm = &priv->statistics.rx_ofdm;
697 	cck = &priv->statistics.rx_cck;
698 	general = &priv->statistics.rx_non_phy;
699 	ht = &priv->statistics.rx_ofdm_ht;
700 	accum_ofdm = &priv->accum_stats.rx_ofdm;
701 	accum_cck = &priv->accum_stats.rx_cck;
702 	accum_general = &priv->accum_stats.rx_non_phy;
703 	accum_ht = &priv->accum_stats.rx_ofdm_ht;
704 	delta_ofdm = &priv->delta_stats.rx_ofdm;
705 	delta_cck = &priv->delta_stats.rx_cck;
706 	delta_general = &priv->delta_stats.rx_non_phy;
707 	delta_ht = &priv->delta_stats.rx_ofdm_ht;
708 	max_ofdm = &priv->max_delta_stats.rx_ofdm;
709 	max_cck = &priv->max_delta_stats.rx_cck;
710 	max_general = &priv->max_delta_stats.rx_non_phy;
711 	max_ht = &priv->max_delta_stats.rx_ofdm_ht;
712 
713 	pos += iwl_statistics_flag(priv, buf, bufsz);
714 	pos += scnprintf(buf + pos, bufsz - pos,
715 			 fmt_header, "Statistics_Rx - OFDM:");
716 	pos += scnprintf(buf + pos, bufsz - pos,
717 			 fmt_table, "ina_cnt:",
718 			 le32_to_cpu(ofdm->ina_cnt),
719 			 accum_ofdm->ina_cnt,
720 			 delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
721 	pos += scnprintf(buf + pos, bufsz - pos,
722 			 fmt_table, "fina_cnt:",
723 			 le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
724 			 delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
725 	pos += scnprintf(buf + pos, bufsz - pos,
726 			 fmt_table, "plcp_err:",
727 			 le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
728 			 delta_ofdm->plcp_err, max_ofdm->plcp_err);
729 	pos += scnprintf(buf + pos, bufsz - pos,
730 			 fmt_table, "crc32_err:",
731 			 le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
732 			 delta_ofdm->crc32_err, max_ofdm->crc32_err);
733 	pos += scnprintf(buf + pos, bufsz - pos,
734 			 fmt_table, "overrun_err:",
735 			 le32_to_cpu(ofdm->overrun_err),
736 			 accum_ofdm->overrun_err, delta_ofdm->overrun_err,
737 			 max_ofdm->overrun_err);
738 	pos += scnprintf(buf + pos, bufsz - pos,
739 			 fmt_table, "early_overrun_err:",
740 			 le32_to_cpu(ofdm->early_overrun_err),
741 			 accum_ofdm->early_overrun_err,
742 			 delta_ofdm->early_overrun_err,
743 			 max_ofdm->early_overrun_err);
744 	pos += scnprintf(buf + pos, bufsz - pos,
745 			 fmt_table, "crc32_good:",
746 			 le32_to_cpu(ofdm->crc32_good),
747 			 accum_ofdm->crc32_good, delta_ofdm->crc32_good,
748 			 max_ofdm->crc32_good);
749 	pos += scnprintf(buf + pos, bufsz - pos,
750 			 fmt_table, "false_alarm_cnt:",
751 			 le32_to_cpu(ofdm->false_alarm_cnt),
752 			 accum_ofdm->false_alarm_cnt,
753 			 delta_ofdm->false_alarm_cnt,
754 			 max_ofdm->false_alarm_cnt);
755 	pos += scnprintf(buf + pos, bufsz - pos,
756 			 fmt_table, "fina_sync_err_cnt:",
757 			 le32_to_cpu(ofdm->fina_sync_err_cnt),
758 			 accum_ofdm->fina_sync_err_cnt,
759 			 delta_ofdm->fina_sync_err_cnt,
760 			 max_ofdm->fina_sync_err_cnt);
761 	pos += scnprintf(buf + pos, bufsz - pos,
762 			 fmt_table, "sfd_timeout:",
763 			 le32_to_cpu(ofdm->sfd_timeout),
764 			 accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
765 			 max_ofdm->sfd_timeout);
766 	pos += scnprintf(buf + pos, bufsz - pos,
767 			 fmt_table, "fina_timeout:",
768 			 le32_to_cpu(ofdm->fina_timeout),
769 			 accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
770 			 max_ofdm->fina_timeout);
771 	pos += scnprintf(buf + pos, bufsz - pos,
772 			 fmt_table, "unresponded_rts:",
773 			 le32_to_cpu(ofdm->unresponded_rts),
774 			 accum_ofdm->unresponded_rts,
775 			 delta_ofdm->unresponded_rts,
776 			 max_ofdm->unresponded_rts);
777 	pos += scnprintf(buf + pos, bufsz - pos,
778 			 fmt_table, "rxe_frame_lmt_ovrun:",
779 			 le32_to_cpu(ofdm->rxe_frame_limit_overrun),
780 			 accum_ofdm->rxe_frame_limit_overrun,
781 			 delta_ofdm->rxe_frame_limit_overrun,
782 			 max_ofdm->rxe_frame_limit_overrun);
783 	pos += scnprintf(buf + pos, bufsz - pos,
784 			 fmt_table, "sent_ack_cnt:",
785 			 le32_to_cpu(ofdm->sent_ack_cnt),
786 			 accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
787 			 max_ofdm->sent_ack_cnt);
788 	pos += scnprintf(buf + pos, bufsz - pos,
789 			 fmt_table, "sent_cts_cnt:",
790 			 le32_to_cpu(ofdm->sent_cts_cnt),
791 			 accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
792 			 max_ofdm->sent_cts_cnt);
793 	pos += scnprintf(buf + pos, bufsz - pos,
794 			 fmt_table, "sent_ba_rsp_cnt:",
795 			 le32_to_cpu(ofdm->sent_ba_rsp_cnt),
796 			 accum_ofdm->sent_ba_rsp_cnt,
797 			 delta_ofdm->sent_ba_rsp_cnt,
798 			 max_ofdm->sent_ba_rsp_cnt);
799 	pos += scnprintf(buf + pos, bufsz - pos,
800 			 fmt_table, "dsp_self_kill:",
801 			 le32_to_cpu(ofdm->dsp_self_kill),
802 			 accum_ofdm->dsp_self_kill,
803 			 delta_ofdm->dsp_self_kill,
804 			 max_ofdm->dsp_self_kill);
805 	pos += scnprintf(buf + pos, bufsz - pos,
806 			 fmt_table, "mh_format_err:",
807 			 le32_to_cpu(ofdm->mh_format_err),
808 			 accum_ofdm->mh_format_err,
809 			 delta_ofdm->mh_format_err,
810 			 max_ofdm->mh_format_err);
811 	pos += scnprintf(buf + pos, bufsz - pos,
812 			 fmt_table, "re_acq_main_rssi_sum:",
813 			 le32_to_cpu(ofdm->re_acq_main_rssi_sum),
814 			 accum_ofdm->re_acq_main_rssi_sum,
815 			 delta_ofdm->re_acq_main_rssi_sum,
816 			 max_ofdm->re_acq_main_rssi_sum);
817 
818 	pos += scnprintf(buf + pos, bufsz - pos,
819 			 fmt_header, "Statistics_Rx - CCK:");
820 	pos += scnprintf(buf + pos, bufsz - pos,
821 			 fmt_table, "ina_cnt:",
822 			 le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
823 			 delta_cck->ina_cnt, max_cck->ina_cnt);
824 	pos += scnprintf(buf + pos, bufsz - pos,
825 			 fmt_table, "fina_cnt:",
826 			 le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
827 			 delta_cck->fina_cnt, max_cck->fina_cnt);
828 	pos += scnprintf(buf + pos, bufsz - pos,
829 			 fmt_table, "plcp_err:",
830 			 le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
831 			 delta_cck->plcp_err, max_cck->plcp_err);
832 	pos += scnprintf(buf + pos, bufsz - pos,
833 			 fmt_table, "crc32_err:",
834 			 le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
835 			 delta_cck->crc32_err, max_cck->crc32_err);
836 	pos += scnprintf(buf + pos, bufsz - pos,
837 			 fmt_table, "overrun_err:",
838 			 le32_to_cpu(cck->overrun_err),
839 			 accum_cck->overrun_err, delta_cck->overrun_err,
840 			 max_cck->overrun_err);
841 	pos += scnprintf(buf + pos, bufsz - pos,
842 			 fmt_table, "early_overrun_err:",
843 			 le32_to_cpu(cck->early_overrun_err),
844 			 accum_cck->early_overrun_err,
845 			 delta_cck->early_overrun_err,
846 			 max_cck->early_overrun_err);
847 	pos += scnprintf(buf + pos, bufsz - pos,
848 			 fmt_table, "crc32_good:",
849 			 le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
850 			 delta_cck->crc32_good, max_cck->crc32_good);
851 	pos += scnprintf(buf + pos, bufsz - pos,
852 			 fmt_table, "false_alarm_cnt:",
853 			 le32_to_cpu(cck->false_alarm_cnt),
854 			 accum_cck->false_alarm_cnt,
855 			 delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
856 	pos += scnprintf(buf + pos, bufsz - pos,
857 			 fmt_table, "fina_sync_err_cnt:",
858 			 le32_to_cpu(cck->fina_sync_err_cnt),
859 			 accum_cck->fina_sync_err_cnt,
860 			 delta_cck->fina_sync_err_cnt,
861 			 max_cck->fina_sync_err_cnt);
862 	pos += scnprintf(buf + pos, bufsz - pos,
863 			 fmt_table, "sfd_timeout:",
864 			 le32_to_cpu(cck->sfd_timeout),
865 			 accum_cck->sfd_timeout, delta_cck->sfd_timeout,
866 			 max_cck->sfd_timeout);
867 	pos += scnprintf(buf + pos, bufsz - pos,
868 			 fmt_table, "fina_timeout:",
869 			 le32_to_cpu(cck->fina_timeout),
870 			 accum_cck->fina_timeout, delta_cck->fina_timeout,
871 			 max_cck->fina_timeout);
872 	pos += scnprintf(buf + pos, bufsz - pos,
873 			 fmt_table, "unresponded_rts:",
874 			 le32_to_cpu(cck->unresponded_rts),
875 			 accum_cck->unresponded_rts, delta_cck->unresponded_rts,
876 			 max_cck->unresponded_rts);
877 	pos += scnprintf(buf + pos, bufsz - pos,
878 			 fmt_table, "rxe_frame_lmt_ovrun:",
879 			 le32_to_cpu(cck->rxe_frame_limit_overrun),
880 			 accum_cck->rxe_frame_limit_overrun,
881 			 delta_cck->rxe_frame_limit_overrun,
882 			 max_cck->rxe_frame_limit_overrun);
883 	pos += scnprintf(buf + pos, bufsz - pos,
884 			 fmt_table, "sent_ack_cnt:",
885 			 le32_to_cpu(cck->sent_ack_cnt),
886 			 accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
887 			 max_cck->sent_ack_cnt);
888 	pos += scnprintf(buf + pos, bufsz - pos,
889 			 fmt_table, "sent_cts_cnt:",
890 			 le32_to_cpu(cck->sent_cts_cnt),
891 			 accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
892 			 max_cck->sent_cts_cnt);
893 	pos += scnprintf(buf + pos, bufsz - pos,
894 			 fmt_table, "sent_ba_rsp_cnt:",
895 			 le32_to_cpu(cck->sent_ba_rsp_cnt),
896 			 accum_cck->sent_ba_rsp_cnt,
897 			 delta_cck->sent_ba_rsp_cnt,
898 			 max_cck->sent_ba_rsp_cnt);
899 	pos += scnprintf(buf + pos, bufsz - pos,
900 			 fmt_table, "dsp_self_kill:",
901 			 le32_to_cpu(cck->dsp_self_kill),
902 			 accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
903 			 max_cck->dsp_self_kill);
904 	pos += scnprintf(buf + pos, bufsz - pos,
905 			 fmt_table, "mh_format_err:",
906 			 le32_to_cpu(cck->mh_format_err),
907 			 accum_cck->mh_format_err, delta_cck->mh_format_err,
908 			 max_cck->mh_format_err);
909 	pos += scnprintf(buf + pos, bufsz - pos,
910 			 fmt_table, "re_acq_main_rssi_sum:",
911 			 le32_to_cpu(cck->re_acq_main_rssi_sum),
912 			 accum_cck->re_acq_main_rssi_sum,
913 			 delta_cck->re_acq_main_rssi_sum,
914 			 max_cck->re_acq_main_rssi_sum);
915 
916 	pos += scnprintf(buf + pos, bufsz - pos,
917 			 fmt_header, "Statistics_Rx - GENERAL:");
918 	pos += scnprintf(buf + pos, bufsz - pos,
919 			 fmt_table, "bogus_cts:",
920 			 le32_to_cpu(general->bogus_cts),
921 			 accum_general->bogus_cts, delta_general->bogus_cts,
922 			 max_general->bogus_cts);
923 	pos += scnprintf(buf + pos, bufsz - pos,
924 			 fmt_table, "bogus_ack:",
925 			 le32_to_cpu(general->bogus_ack),
926 			 accum_general->bogus_ack, delta_general->bogus_ack,
927 			 max_general->bogus_ack);
928 	pos += scnprintf(buf + pos, bufsz - pos,
929 			 fmt_table, "non_bssid_frames:",
930 			 le32_to_cpu(general->non_bssid_frames),
931 			 accum_general->non_bssid_frames,
932 			 delta_general->non_bssid_frames,
933 			 max_general->non_bssid_frames);
934 	pos += scnprintf(buf + pos, bufsz - pos,
935 			 fmt_table, "filtered_frames:",
936 			 le32_to_cpu(general->filtered_frames),
937 			 accum_general->filtered_frames,
938 			 delta_general->filtered_frames,
939 			 max_general->filtered_frames);
940 	pos += scnprintf(buf + pos, bufsz - pos,
941 			 fmt_table, "non_channel_beacons:",
942 			 le32_to_cpu(general->non_channel_beacons),
943 			 accum_general->non_channel_beacons,
944 			 delta_general->non_channel_beacons,
945 			 max_general->non_channel_beacons);
946 	pos += scnprintf(buf + pos, bufsz - pos,
947 			 fmt_table, "channel_beacons:",
948 			 le32_to_cpu(general->channel_beacons),
949 			 accum_general->channel_beacons,
950 			 delta_general->channel_beacons,
951 			 max_general->channel_beacons);
952 	pos += scnprintf(buf + pos, bufsz - pos,
953 			 fmt_table, "num_missed_bcon:",
954 			 le32_to_cpu(general->num_missed_bcon),
955 			 accum_general->num_missed_bcon,
956 			 delta_general->num_missed_bcon,
957 			 max_general->num_missed_bcon);
958 	pos += scnprintf(buf + pos, bufsz - pos,
959 			 fmt_table, "adc_rx_saturation_time:",
960 			 le32_to_cpu(general->adc_rx_saturation_time),
961 			 accum_general->adc_rx_saturation_time,
962 			 delta_general->adc_rx_saturation_time,
963 			 max_general->adc_rx_saturation_time);
964 	pos += scnprintf(buf + pos, bufsz - pos,
965 			 fmt_table, "ina_detect_search_tm:",
966 			 le32_to_cpu(general->ina_detection_search_time),
967 			 accum_general->ina_detection_search_time,
968 			 delta_general->ina_detection_search_time,
969 			 max_general->ina_detection_search_time);
970 	pos += scnprintf(buf + pos, bufsz - pos,
971 			 fmt_table, "beacon_silence_rssi_a:",
972 			 le32_to_cpu(general->beacon_silence_rssi_a),
973 			 accum_general->beacon_silence_rssi_a,
974 			 delta_general->beacon_silence_rssi_a,
975 			 max_general->beacon_silence_rssi_a);
976 	pos += scnprintf(buf + pos, bufsz - pos,
977 			 fmt_table, "beacon_silence_rssi_b:",
978 			 le32_to_cpu(general->beacon_silence_rssi_b),
979 			 accum_general->beacon_silence_rssi_b,
980 			 delta_general->beacon_silence_rssi_b,
981 			 max_general->beacon_silence_rssi_b);
982 	pos += scnprintf(buf + pos, bufsz - pos,
983 			 fmt_table, "beacon_silence_rssi_c:",
984 			 le32_to_cpu(general->beacon_silence_rssi_c),
985 			 accum_general->beacon_silence_rssi_c,
986 			 delta_general->beacon_silence_rssi_c,
987 			 max_general->beacon_silence_rssi_c);
988 	pos += scnprintf(buf + pos, bufsz - pos,
989 			 fmt_table, "interference_data_flag:",
990 			 le32_to_cpu(general->interference_data_flag),
991 			 accum_general->interference_data_flag,
992 			 delta_general->interference_data_flag,
993 			 max_general->interference_data_flag);
994 	pos += scnprintf(buf + pos, bufsz - pos,
995 			 fmt_table, "channel_load:",
996 			 le32_to_cpu(general->channel_load),
997 			 accum_general->channel_load,
998 			 delta_general->channel_load,
999 			 max_general->channel_load);
1000 	pos += scnprintf(buf + pos, bufsz - pos,
1001 			 fmt_table, "dsp_false_alarms:",
1002 			 le32_to_cpu(general->dsp_false_alarms),
1003 			 accum_general->dsp_false_alarms,
1004 			 delta_general->dsp_false_alarms,
1005 			 max_general->dsp_false_alarms);
1006 	pos += scnprintf(buf + pos, bufsz - pos,
1007 			 fmt_table, "beacon_rssi_a:",
1008 			 le32_to_cpu(general->beacon_rssi_a),
1009 			 accum_general->beacon_rssi_a,
1010 			 delta_general->beacon_rssi_a,
1011 			 max_general->beacon_rssi_a);
1012 	pos += scnprintf(buf + pos, bufsz - pos,
1013 			 fmt_table, "beacon_rssi_b:",
1014 			 le32_to_cpu(general->beacon_rssi_b),
1015 			 accum_general->beacon_rssi_b,
1016 			 delta_general->beacon_rssi_b,
1017 			 max_general->beacon_rssi_b);
1018 	pos += scnprintf(buf + pos, bufsz - pos,
1019 			 fmt_table, "beacon_rssi_c:",
1020 			 le32_to_cpu(general->beacon_rssi_c),
1021 			 accum_general->beacon_rssi_c,
1022 			 delta_general->beacon_rssi_c,
1023 			 max_general->beacon_rssi_c);
1024 	pos += scnprintf(buf + pos, bufsz - pos,
1025 			 fmt_table, "beacon_energy_a:",
1026 			 le32_to_cpu(general->beacon_energy_a),
1027 			 accum_general->beacon_energy_a,
1028 			 delta_general->beacon_energy_a,
1029 			 max_general->beacon_energy_a);
1030 	pos += scnprintf(buf + pos, bufsz - pos,
1031 			 fmt_table, "beacon_energy_b:",
1032 			 le32_to_cpu(general->beacon_energy_b),
1033 			 accum_general->beacon_energy_b,
1034 			 delta_general->beacon_energy_b,
1035 			 max_general->beacon_energy_b);
1036 	pos += scnprintf(buf + pos, bufsz - pos,
1037 			 fmt_table, "beacon_energy_c:",
1038 			 le32_to_cpu(general->beacon_energy_c),
1039 			 accum_general->beacon_energy_c,
1040 			 delta_general->beacon_energy_c,
1041 			 max_general->beacon_energy_c);
1042 
1043 	pos += scnprintf(buf + pos, bufsz - pos,
1044 			 fmt_header, "Statistics_Rx - OFDM_HT:");
1045 	pos += scnprintf(buf + pos, bufsz - pos,
1046 			 fmt_table, "plcp_err:",
1047 			 le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1048 			 delta_ht->plcp_err, max_ht->plcp_err);
1049 	pos += scnprintf(buf + pos, bufsz - pos,
1050 			 fmt_table, "overrun_err:",
1051 			 le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1052 			 delta_ht->overrun_err, max_ht->overrun_err);
1053 	pos += scnprintf(buf + pos, bufsz - pos,
1054 			 fmt_table, "early_overrun_err:",
1055 			 le32_to_cpu(ht->early_overrun_err),
1056 			 accum_ht->early_overrun_err,
1057 			 delta_ht->early_overrun_err,
1058 			 max_ht->early_overrun_err);
1059 	pos += scnprintf(buf + pos, bufsz - pos,
1060 			 fmt_table, "crc32_good:",
1061 			 le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1062 			 delta_ht->crc32_good, max_ht->crc32_good);
1063 	pos += scnprintf(buf + pos, bufsz - pos,
1064 			 fmt_table, "crc32_err:",
1065 			 le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1066 			 delta_ht->crc32_err, max_ht->crc32_err);
1067 	pos += scnprintf(buf + pos, bufsz - pos,
1068 			 fmt_table, "mh_format_err:",
1069 			 le32_to_cpu(ht->mh_format_err),
1070 			 accum_ht->mh_format_err,
1071 			 delta_ht->mh_format_err, max_ht->mh_format_err);
1072 	pos += scnprintf(buf + pos, bufsz - pos,
1073 			 fmt_table, "agg_crc32_good:",
1074 			 le32_to_cpu(ht->agg_crc32_good),
1075 			 accum_ht->agg_crc32_good,
1076 			 delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1077 	pos += scnprintf(buf + pos, bufsz - pos,
1078 			 fmt_table, "agg_mpdu_cnt:",
1079 			 le32_to_cpu(ht->agg_mpdu_cnt),
1080 			 accum_ht->agg_mpdu_cnt,
1081 			 delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1082 	pos += scnprintf(buf + pos, bufsz - pos,
1083 			 fmt_table, "agg_cnt:",
1084 			 le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1085 			 delta_ht->agg_cnt, max_ht->agg_cnt);
1086 	pos += scnprintf(buf + pos, bufsz - pos,
1087 			 fmt_table, "unsupport_mcs:",
1088 			 le32_to_cpu(ht->unsupport_mcs),
1089 			 accum_ht->unsupport_mcs,
1090 			 delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1091 
1092 	spin_unlock_bh(&priv->statistics.lock);
1093 
1094 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1095 	kfree(buf);
1096 	return ret;
1097 }
1098 
iwl_dbgfs_ucode_tx_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1099 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1100 					char __user *user_buf,
1101 					size_t count, loff_t *ppos)
1102 {
1103 	struct iwl_priv *priv = file->private_data;
1104 	int pos = 0;
1105 	char *buf;
1106 	int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1107 	ssize_t ret;
1108 	struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1109 
1110 	if (!iwl_is_alive(priv))
1111 		return -EAGAIN;
1112 
1113 	buf = kzalloc(bufsz, GFP_KERNEL);
1114 	if (!buf)
1115 		return -ENOMEM;
1116 
1117 	/* the statistic information display here is based on
1118 	 * the last statistics notification from uCode
1119 	 * might not reflect the current uCode activity
1120 	 */
1121 	spin_lock_bh(&priv->statistics.lock);
1122 
1123 	tx = &priv->statistics.tx;
1124 	accum_tx = &priv->accum_stats.tx;
1125 	delta_tx = &priv->delta_stats.tx;
1126 	max_tx = &priv->max_delta_stats.tx;
1127 
1128 	pos += iwl_statistics_flag(priv, buf, bufsz);
1129 	pos += scnprintf(buf + pos, bufsz - pos,
1130 			 fmt_header, "Statistics_Tx:");
1131 	pos += scnprintf(buf + pos, bufsz - pos,
1132 			 fmt_table, "preamble:",
1133 			 le32_to_cpu(tx->preamble_cnt),
1134 			 accum_tx->preamble_cnt,
1135 			 delta_tx->preamble_cnt, max_tx->preamble_cnt);
1136 	pos += scnprintf(buf + pos, bufsz - pos,
1137 			 fmt_table, "rx_detected_cnt:",
1138 			 le32_to_cpu(tx->rx_detected_cnt),
1139 			 accum_tx->rx_detected_cnt,
1140 			 delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1141 	pos += scnprintf(buf + pos, bufsz - pos,
1142 			 fmt_table, "bt_prio_defer_cnt:",
1143 			 le32_to_cpu(tx->bt_prio_defer_cnt),
1144 			 accum_tx->bt_prio_defer_cnt,
1145 			 delta_tx->bt_prio_defer_cnt,
1146 			 max_tx->bt_prio_defer_cnt);
1147 	pos += scnprintf(buf + pos, bufsz - pos,
1148 			 fmt_table, "bt_prio_kill_cnt:",
1149 			 le32_to_cpu(tx->bt_prio_kill_cnt),
1150 			 accum_tx->bt_prio_kill_cnt,
1151 			 delta_tx->bt_prio_kill_cnt,
1152 			 max_tx->bt_prio_kill_cnt);
1153 	pos += scnprintf(buf + pos, bufsz - pos,
1154 			 fmt_table, "few_bytes_cnt:",
1155 			 le32_to_cpu(tx->few_bytes_cnt),
1156 			 accum_tx->few_bytes_cnt,
1157 			 delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1158 	pos += scnprintf(buf + pos, bufsz - pos,
1159 			 fmt_table, "cts_timeout:",
1160 			 le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1161 			 delta_tx->cts_timeout, max_tx->cts_timeout);
1162 	pos += scnprintf(buf + pos, bufsz - pos,
1163 			 fmt_table, "ack_timeout:",
1164 			 le32_to_cpu(tx->ack_timeout),
1165 			 accum_tx->ack_timeout,
1166 			 delta_tx->ack_timeout, max_tx->ack_timeout);
1167 	pos += scnprintf(buf + pos, bufsz - pos,
1168 			 fmt_table, "expected_ack_cnt:",
1169 			 le32_to_cpu(tx->expected_ack_cnt),
1170 			 accum_tx->expected_ack_cnt,
1171 			 delta_tx->expected_ack_cnt,
1172 			 max_tx->expected_ack_cnt);
1173 	pos += scnprintf(buf + pos, bufsz - pos,
1174 			 fmt_table, "actual_ack_cnt:",
1175 			 le32_to_cpu(tx->actual_ack_cnt),
1176 			 accum_tx->actual_ack_cnt,
1177 			 delta_tx->actual_ack_cnt,
1178 			 max_tx->actual_ack_cnt);
1179 	pos += scnprintf(buf + pos, bufsz - pos,
1180 			 fmt_table, "dump_msdu_cnt:",
1181 			 le32_to_cpu(tx->dump_msdu_cnt),
1182 			 accum_tx->dump_msdu_cnt,
1183 			 delta_tx->dump_msdu_cnt,
1184 			 max_tx->dump_msdu_cnt);
1185 	pos += scnprintf(buf + pos, bufsz - pos,
1186 			 fmt_table, "abort_nxt_frame_mismatch:",
1187 			 le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1188 			 accum_tx->burst_abort_next_frame_mismatch_cnt,
1189 			 delta_tx->burst_abort_next_frame_mismatch_cnt,
1190 			 max_tx->burst_abort_next_frame_mismatch_cnt);
1191 	pos += scnprintf(buf + pos, bufsz - pos,
1192 			 fmt_table, "abort_missing_nxt_frame:",
1193 			 le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1194 			 accum_tx->burst_abort_missing_next_frame_cnt,
1195 			 delta_tx->burst_abort_missing_next_frame_cnt,
1196 			 max_tx->burst_abort_missing_next_frame_cnt);
1197 	pos += scnprintf(buf + pos, bufsz - pos,
1198 			 fmt_table, "cts_timeout_collision:",
1199 			 le32_to_cpu(tx->cts_timeout_collision),
1200 			 accum_tx->cts_timeout_collision,
1201 			 delta_tx->cts_timeout_collision,
1202 			 max_tx->cts_timeout_collision);
1203 	pos += scnprintf(buf + pos, bufsz - pos,
1204 			 fmt_table, "ack_ba_timeout_collision:",
1205 			 le32_to_cpu(tx->ack_or_ba_timeout_collision),
1206 			 accum_tx->ack_or_ba_timeout_collision,
1207 			 delta_tx->ack_or_ba_timeout_collision,
1208 			 max_tx->ack_or_ba_timeout_collision);
1209 	pos += scnprintf(buf + pos, bufsz - pos,
1210 			 fmt_table, "agg ba_timeout:",
1211 			 le32_to_cpu(tx->agg.ba_timeout),
1212 			 accum_tx->agg.ba_timeout,
1213 			 delta_tx->agg.ba_timeout,
1214 			 max_tx->agg.ba_timeout);
1215 	pos += scnprintf(buf + pos, bufsz - pos,
1216 			 fmt_table, "agg ba_resched_frames:",
1217 			 le32_to_cpu(tx->agg.ba_reschedule_frames),
1218 			 accum_tx->agg.ba_reschedule_frames,
1219 			 delta_tx->agg.ba_reschedule_frames,
1220 			 max_tx->agg.ba_reschedule_frames);
1221 	pos += scnprintf(buf + pos, bufsz - pos,
1222 			 fmt_table, "agg scd_query_agg_frame:",
1223 			 le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1224 			 accum_tx->agg.scd_query_agg_frame_cnt,
1225 			 delta_tx->agg.scd_query_agg_frame_cnt,
1226 			 max_tx->agg.scd_query_agg_frame_cnt);
1227 	pos += scnprintf(buf + pos, bufsz - pos,
1228 			 fmt_table, "agg scd_query_no_agg:",
1229 			 le32_to_cpu(tx->agg.scd_query_no_agg),
1230 			 accum_tx->agg.scd_query_no_agg,
1231 			 delta_tx->agg.scd_query_no_agg,
1232 			 max_tx->agg.scd_query_no_agg);
1233 	pos += scnprintf(buf + pos, bufsz - pos,
1234 			 fmt_table, "agg scd_query_agg:",
1235 			 le32_to_cpu(tx->agg.scd_query_agg),
1236 			 accum_tx->agg.scd_query_agg,
1237 			 delta_tx->agg.scd_query_agg,
1238 			 max_tx->agg.scd_query_agg);
1239 	pos += scnprintf(buf + pos, bufsz - pos,
1240 			 fmt_table, "agg scd_query_mismatch:",
1241 			 le32_to_cpu(tx->agg.scd_query_mismatch),
1242 			 accum_tx->agg.scd_query_mismatch,
1243 			 delta_tx->agg.scd_query_mismatch,
1244 			 max_tx->agg.scd_query_mismatch);
1245 	pos += scnprintf(buf + pos, bufsz - pos,
1246 			 fmt_table, "agg frame_not_ready:",
1247 			 le32_to_cpu(tx->agg.frame_not_ready),
1248 			 accum_tx->agg.frame_not_ready,
1249 			 delta_tx->agg.frame_not_ready,
1250 			 max_tx->agg.frame_not_ready);
1251 	pos += scnprintf(buf + pos, bufsz - pos,
1252 			 fmt_table, "agg underrun:",
1253 			 le32_to_cpu(tx->agg.underrun),
1254 			 accum_tx->agg.underrun,
1255 			 delta_tx->agg.underrun, max_tx->agg.underrun);
1256 	pos += scnprintf(buf + pos, bufsz - pos,
1257 			 fmt_table, "agg bt_prio_kill:",
1258 			 le32_to_cpu(tx->agg.bt_prio_kill),
1259 			 accum_tx->agg.bt_prio_kill,
1260 			 delta_tx->agg.bt_prio_kill,
1261 			 max_tx->agg.bt_prio_kill);
1262 	pos += scnprintf(buf + pos, bufsz - pos,
1263 			 fmt_table, "agg rx_ba_rsp_cnt:",
1264 			 le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1265 			 accum_tx->agg.rx_ba_rsp_cnt,
1266 			 delta_tx->agg.rx_ba_rsp_cnt,
1267 			 max_tx->agg.rx_ba_rsp_cnt);
1268 
1269 	if (tx->tx_power.ant_a || tx->tx_power.ant_b || tx->tx_power.ant_c) {
1270 		pos += scnprintf(buf + pos, bufsz - pos,
1271 			"tx power: (1/2 dB step)\n");
1272 		if ((priv->nvm_data->valid_tx_ant & ANT_A) &&
1273 		    tx->tx_power.ant_a)
1274 			pos += scnprintf(buf + pos, bufsz - pos,
1275 					fmt_hex, "antenna A:",
1276 					tx->tx_power.ant_a);
1277 		if ((priv->nvm_data->valid_tx_ant & ANT_B) &&
1278 		    tx->tx_power.ant_b)
1279 			pos += scnprintf(buf + pos, bufsz - pos,
1280 					fmt_hex, "antenna B:",
1281 					tx->tx_power.ant_b);
1282 		if ((priv->nvm_data->valid_tx_ant & ANT_C) &&
1283 		    tx->tx_power.ant_c)
1284 			pos += scnprintf(buf + pos, bufsz - pos,
1285 					fmt_hex, "antenna C:",
1286 					tx->tx_power.ant_c);
1287 	}
1288 
1289 	spin_unlock_bh(&priv->statistics.lock);
1290 
1291 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1292 	kfree(buf);
1293 	return ret;
1294 }
1295 
iwl_dbgfs_ucode_general_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1296 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1297 					char __user *user_buf,
1298 					size_t count, loff_t *ppos)
1299 {
1300 	struct iwl_priv *priv = file->private_data;
1301 	int pos = 0;
1302 	char *buf;
1303 	int bufsz = sizeof(struct statistics_general) * 10 + 300;
1304 	ssize_t ret;
1305 	struct statistics_general_common *general, *accum_general;
1306 	struct statistics_general_common *delta_general, *max_general;
1307 	struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1308 	struct statistics_div *div, *accum_div, *delta_div, *max_div;
1309 
1310 	if (!iwl_is_alive(priv))
1311 		return -EAGAIN;
1312 
1313 	buf = kzalloc(bufsz, GFP_KERNEL);
1314 	if (!buf)
1315 		return -ENOMEM;
1316 
1317 	/* the statistic information display here is based on
1318 	 * the last statistics notification from uCode
1319 	 * might not reflect the current uCode activity
1320 	 */
1321 
1322 	spin_lock_bh(&priv->statistics.lock);
1323 
1324 	general = &priv->statistics.common;
1325 	dbg = &priv->statistics.common.dbg;
1326 	div = &priv->statistics.common.div;
1327 	accum_general = &priv->accum_stats.common;
1328 	accum_dbg = &priv->accum_stats.common.dbg;
1329 	accum_div = &priv->accum_stats.common.div;
1330 	delta_general = &priv->delta_stats.common;
1331 	max_general = &priv->max_delta_stats.common;
1332 	delta_dbg = &priv->delta_stats.common.dbg;
1333 	max_dbg = &priv->max_delta_stats.common.dbg;
1334 	delta_div = &priv->delta_stats.common.div;
1335 	max_div = &priv->max_delta_stats.common.div;
1336 
1337 	pos += iwl_statistics_flag(priv, buf, bufsz);
1338 	pos += scnprintf(buf + pos, bufsz - pos,
1339 			 fmt_header, "Statistics_General:");
1340 	pos += scnprintf(buf + pos, bufsz - pos,
1341 			 fmt_value, "temperature:",
1342 			 le32_to_cpu(general->temperature));
1343 	pos += scnprintf(buf + pos, bufsz - pos,
1344 			 fmt_value, "temperature_m:",
1345 			 le32_to_cpu(general->temperature_m));
1346 	pos += scnprintf(buf + pos, bufsz - pos,
1347 			 fmt_value, "ttl_timestamp:",
1348 			 le32_to_cpu(general->ttl_timestamp));
1349 	pos += scnprintf(buf + pos, bufsz - pos,
1350 			 fmt_table, "burst_check:",
1351 			 le32_to_cpu(dbg->burst_check),
1352 			 accum_dbg->burst_check,
1353 			 delta_dbg->burst_check, max_dbg->burst_check);
1354 	pos += scnprintf(buf + pos, bufsz - pos,
1355 			 fmt_table, "burst_count:",
1356 			 le32_to_cpu(dbg->burst_count),
1357 			 accum_dbg->burst_count,
1358 			 delta_dbg->burst_count, max_dbg->burst_count);
1359 	pos += scnprintf(buf + pos, bufsz - pos,
1360 			 fmt_table, "wait_for_silence_timeout_count:",
1361 			 le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
1362 			 accum_dbg->wait_for_silence_timeout_cnt,
1363 			 delta_dbg->wait_for_silence_timeout_cnt,
1364 			 max_dbg->wait_for_silence_timeout_cnt);
1365 	pos += scnprintf(buf + pos, bufsz - pos,
1366 			 fmt_table, "sleep_time:",
1367 			 le32_to_cpu(general->sleep_time),
1368 			 accum_general->sleep_time,
1369 			 delta_general->sleep_time, max_general->sleep_time);
1370 	pos += scnprintf(buf + pos, bufsz - pos,
1371 			 fmt_table, "slots_out:",
1372 			 le32_to_cpu(general->slots_out),
1373 			 accum_general->slots_out,
1374 			 delta_general->slots_out, max_general->slots_out);
1375 	pos += scnprintf(buf + pos, bufsz - pos,
1376 			 fmt_table, "slots_idle:",
1377 			 le32_to_cpu(general->slots_idle),
1378 			 accum_general->slots_idle,
1379 			 delta_general->slots_idle, max_general->slots_idle);
1380 	pos += scnprintf(buf + pos, bufsz - pos,
1381 			 fmt_table, "tx_on_a:",
1382 			 le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1383 			 delta_div->tx_on_a, max_div->tx_on_a);
1384 	pos += scnprintf(buf + pos, bufsz - pos,
1385 			 fmt_table, "tx_on_b:",
1386 			 le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1387 			 delta_div->tx_on_b, max_div->tx_on_b);
1388 	pos += scnprintf(buf + pos, bufsz - pos,
1389 			 fmt_table, "exec_time:",
1390 			 le32_to_cpu(div->exec_time), accum_div->exec_time,
1391 			 delta_div->exec_time, max_div->exec_time);
1392 	pos += scnprintf(buf + pos, bufsz - pos,
1393 			 fmt_table, "probe_time:",
1394 			 le32_to_cpu(div->probe_time), accum_div->probe_time,
1395 			 delta_div->probe_time, max_div->probe_time);
1396 	pos += scnprintf(buf + pos, bufsz - pos,
1397 			 fmt_table, "rx_enable_counter:",
1398 			 le32_to_cpu(general->rx_enable_counter),
1399 			 accum_general->rx_enable_counter,
1400 			 delta_general->rx_enable_counter,
1401 			 max_general->rx_enable_counter);
1402 	pos += scnprintf(buf + pos, bufsz - pos,
1403 			 fmt_table, "num_of_sos_states:",
1404 			 le32_to_cpu(general->num_of_sos_states),
1405 			 accum_general->num_of_sos_states,
1406 			 delta_general->num_of_sos_states,
1407 			 max_general->num_of_sos_states);
1408 
1409 	spin_unlock_bh(&priv->statistics.lock);
1410 
1411 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1412 	kfree(buf);
1413 	return ret;
1414 }
1415 
iwl_dbgfs_ucode_bt_stats_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1416 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1417 					char __user *user_buf,
1418 					size_t count, loff_t *ppos)
1419 {
1420 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1421 	int pos = 0;
1422 	char *buf;
1423 	int bufsz = (sizeof(struct statistics_bt_activity) * 24) + 200;
1424 	ssize_t ret;
1425 	struct statistics_bt_activity *bt, *accum_bt;
1426 
1427 	if (!iwl_is_alive(priv))
1428 		return -EAGAIN;
1429 
1430 	if (!priv->bt_enable_flag)
1431 		return -EINVAL;
1432 
1433 	/* make request to uCode to retrieve statistics information */
1434 	mutex_lock(&priv->mutex);
1435 	ret = iwl_send_statistics_request(priv, 0, false);
1436 	mutex_unlock(&priv->mutex);
1437 
1438 	if (ret)
1439 		return -EAGAIN;
1440 	buf = kzalloc(bufsz, GFP_KERNEL);
1441 	if (!buf)
1442 		return -ENOMEM;
1443 
1444 	/*
1445 	 * the statistic information display here is based on
1446 	 * the last statistics notification from uCode
1447 	 * might not reflect the current uCode activity
1448 	 */
1449 
1450 	spin_lock_bh(&priv->statistics.lock);
1451 
1452 	bt = &priv->statistics.bt_activity;
1453 	accum_bt = &priv->accum_stats.bt_activity;
1454 
1455 	pos += iwl_statistics_flag(priv, buf, bufsz);
1456 	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_BT:\n");
1457 	pos += scnprintf(buf + pos, bufsz - pos,
1458 			"\t\t\tcurrent\t\t\taccumulative\n");
1459 	pos += scnprintf(buf + pos, bufsz - pos,
1460 			 "hi_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1461 			 le32_to_cpu(bt->hi_priority_tx_req_cnt),
1462 			 accum_bt->hi_priority_tx_req_cnt);
1463 	pos += scnprintf(buf + pos, bufsz - pos,
1464 			 "hi_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1465 			 le32_to_cpu(bt->hi_priority_tx_denied_cnt),
1466 			 accum_bt->hi_priority_tx_denied_cnt);
1467 	pos += scnprintf(buf + pos, bufsz - pos,
1468 			 "lo_priority_tx_req_cnt:\t\t%u\t\t\t%u\n",
1469 			 le32_to_cpu(bt->lo_priority_tx_req_cnt),
1470 			 accum_bt->lo_priority_tx_req_cnt);
1471 	pos += scnprintf(buf + pos, bufsz - pos,
1472 			 "lo_priority_tx_denied_cnt:\t%u\t\t\t%u\n",
1473 			 le32_to_cpu(bt->lo_priority_tx_denied_cnt),
1474 			 accum_bt->lo_priority_tx_denied_cnt);
1475 	pos += scnprintf(buf + pos, bufsz - pos,
1476 			 "hi_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1477 			 le32_to_cpu(bt->hi_priority_rx_req_cnt),
1478 			 accum_bt->hi_priority_rx_req_cnt);
1479 	pos += scnprintf(buf + pos, bufsz - pos,
1480 			 "hi_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1481 			 le32_to_cpu(bt->hi_priority_rx_denied_cnt),
1482 			 accum_bt->hi_priority_rx_denied_cnt);
1483 	pos += scnprintf(buf + pos, bufsz - pos,
1484 			 "lo_priority_rx_req_cnt:\t\t%u\t\t\t%u\n",
1485 			 le32_to_cpu(bt->lo_priority_rx_req_cnt),
1486 			 accum_bt->lo_priority_rx_req_cnt);
1487 	pos += scnprintf(buf + pos, bufsz - pos,
1488 			 "lo_priority_rx_denied_cnt:\t%u\t\t\t%u\n",
1489 			 le32_to_cpu(bt->lo_priority_rx_denied_cnt),
1490 			 accum_bt->lo_priority_rx_denied_cnt);
1491 
1492 	pos += scnprintf(buf + pos, bufsz - pos,
1493 			 "(rx)num_bt_kills:\t\t%u\t\t\t%u\n",
1494 			 le32_to_cpu(priv->statistics.num_bt_kills),
1495 			 priv->statistics.accum_num_bt_kills);
1496 
1497 	spin_unlock_bh(&priv->statistics.lock);
1498 
1499 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1500 	kfree(buf);
1501 	return ret;
1502 }
1503 
iwl_dbgfs_reply_tx_error_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1504 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1505 					char __user *user_buf,
1506 					size_t count, loff_t *ppos)
1507 {
1508 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509 	int pos = 0;
1510 	char *buf;
1511 	int bufsz = (sizeof(struct reply_tx_error_statistics) * 24) +
1512 		(sizeof(struct reply_agg_tx_error_statistics) * 24) + 200;
1513 	ssize_t ret;
1514 
1515 	if (!iwl_is_alive(priv))
1516 		return -EAGAIN;
1517 
1518 	buf = kzalloc(bufsz, GFP_KERNEL);
1519 	if (!buf)
1520 		return -ENOMEM;
1521 
1522 	pos += scnprintf(buf + pos, bufsz - pos, "Statistics_TX_Error:\n");
1523 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t\t%u\n",
1524 			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_DELAY),
1525 			 priv->reply_tx_stats.pp_delay);
1526 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1527 			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_FEW_BYTES),
1528 			 priv->reply_tx_stats.pp_few_bytes);
1529 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1530 			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_BT_PRIO),
1531 			 priv->reply_tx_stats.pp_bt_prio);
1532 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1533 			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_QUIET_PERIOD),
1534 			 priv->reply_tx_stats.pp_quiet_period);
1535 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1536 			 iwl_get_tx_fail_reason(TX_STATUS_POSTPONE_CALC_TTAK),
1537 			 priv->reply_tx_stats.pp_calc_ttak);
1538 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1539 			 iwl_get_tx_fail_reason(
1540 				TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY),
1541 			 priv->reply_tx_stats.int_crossed_retry);
1542 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1543 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_SHORT_LIMIT),
1544 			 priv->reply_tx_stats.short_limit);
1545 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1546 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LONG_LIMIT),
1547 			 priv->reply_tx_stats.long_limit);
1548 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1549 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_UNDERRUN),
1550 			 priv->reply_tx_stats.fifo_underrun);
1551 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1552 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DRAIN_FLOW),
1553 			 priv->reply_tx_stats.drain_flow);
1554 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1555 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_RFKILL_FLUSH),
1556 			 priv->reply_tx_stats.rfkill_flush);
1557 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1558 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_LIFE_EXPIRE),
1559 			 priv->reply_tx_stats.life_expire);
1560 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1561 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_DEST_PS),
1562 			 priv->reply_tx_stats.dest_ps);
1563 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1564 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_HOST_ABORTED),
1565 			 priv->reply_tx_stats.host_abort);
1566 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1567 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_BT_RETRY),
1568 			 priv->reply_tx_stats.pp_delay);
1569 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1570 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_STA_INVALID),
1571 			 priv->reply_tx_stats.sta_invalid);
1572 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1573 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FRAG_DROPPED),
1574 			 priv->reply_tx_stats.frag_drop);
1575 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1576 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_TID_DISABLE),
1577 			 priv->reply_tx_stats.tid_disable);
1578 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1579 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_FIFO_FLUSHED),
1580 			 priv->reply_tx_stats.fifo_flush);
1581 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1582 			 iwl_get_tx_fail_reason(
1583 				TX_STATUS_FAIL_INSUFFICIENT_CF_POLL),
1584 			 priv->reply_tx_stats.insuff_cf_poll);
1585 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1586 			 iwl_get_tx_fail_reason(TX_STATUS_FAIL_PASSIVE_NO_RX),
1587 			 priv->reply_tx_stats.fail_hw_drop);
1588 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1589 			 iwl_get_tx_fail_reason(
1590 				TX_STATUS_FAIL_NO_BEACON_ON_RADAR),
1591 			 priv->reply_tx_stats.sta_color_mismatch);
1592 	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1593 			 priv->reply_tx_stats.unknown);
1594 
1595 	pos += scnprintf(buf + pos, bufsz - pos,
1596 			 "\nStatistics_Agg_TX_Error:\n");
1597 
1598 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1599 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_UNDERRUN_MSK),
1600 			 priv->reply_agg_tx_stats.underrun);
1601 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1602 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_BT_PRIO_MSK),
1603 			 priv->reply_agg_tx_stats.bt_prio);
1604 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1605 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_FEW_BYTES_MSK),
1606 			 priv->reply_agg_tx_stats.few_bytes);
1607 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1608 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_ABORT_MSK),
1609 			 priv->reply_agg_tx_stats.abort);
1610 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1611 			 iwl_get_agg_tx_fail_reason(
1612 				AGG_TX_STATE_LAST_SENT_TTL_MSK),
1613 			 priv->reply_agg_tx_stats.last_sent_ttl);
1614 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1615 			 iwl_get_agg_tx_fail_reason(
1616 				AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK),
1617 			 priv->reply_agg_tx_stats.last_sent_try);
1618 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1619 			 iwl_get_agg_tx_fail_reason(
1620 				AGG_TX_STATE_LAST_SENT_BT_KILL_MSK),
1621 			 priv->reply_agg_tx_stats.last_sent_bt_kill);
1622 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1623 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_SCD_QUERY_MSK),
1624 			 priv->reply_agg_tx_stats.scd_query);
1625 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t%u\n",
1626 			 iwl_get_agg_tx_fail_reason(
1627 				AGG_TX_STATE_TEST_BAD_CRC32_MSK),
1628 			 priv->reply_agg_tx_stats.bad_crc32);
1629 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1630 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_RESPONSE_MSK),
1631 			 priv->reply_agg_tx_stats.response);
1632 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1633 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DUMP_TX_MSK),
1634 			 priv->reply_agg_tx_stats.dump_tx);
1635 	pos += scnprintf(buf + pos, bufsz - pos, "%s:\t\t\t%u\n",
1636 			 iwl_get_agg_tx_fail_reason(AGG_TX_STATE_DELAY_TX_MSK),
1637 			 priv->reply_agg_tx_stats.delay_tx);
1638 	pos += scnprintf(buf + pos, bufsz - pos, "UNKNOWN:\t\t\t%u\n",
1639 			 priv->reply_agg_tx_stats.unknown);
1640 
1641 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1642 	kfree(buf);
1643 	return ret;
1644 }
1645 
iwl_dbgfs_sensitivity_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1646 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1647 					char __user *user_buf,
1648 					size_t count, loff_t *ppos) {
1649 
1650 	struct iwl_priv *priv = file->private_data;
1651 	int pos = 0;
1652 	int cnt = 0;
1653 	char *buf;
1654 	int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1655 	ssize_t ret;
1656 	struct iwl_sensitivity_data *data;
1657 
1658 	data = &priv->sensitivity_data;
1659 	buf = kzalloc(bufsz, GFP_KERNEL);
1660 	if (!buf)
1661 		return -ENOMEM;
1662 
1663 	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1664 			data->auto_corr_ofdm);
1665 	pos += scnprintf(buf + pos, bufsz - pos,
1666 			"auto_corr_ofdm_mrc:\t\t %u\n",
1667 			data->auto_corr_ofdm_mrc);
1668 	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1669 			data->auto_corr_ofdm_x1);
1670 	pos += scnprintf(buf + pos, bufsz - pos,
1671 			"auto_corr_ofdm_mrc_x1:\t\t %u\n",
1672 			data->auto_corr_ofdm_mrc_x1);
1673 	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1674 			data->auto_corr_cck);
1675 	pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1676 			data->auto_corr_cck_mrc);
1677 	pos += scnprintf(buf + pos, bufsz - pos,
1678 			"last_bad_plcp_cnt_ofdm:\t\t %u\n",
1679 			data->last_bad_plcp_cnt_ofdm);
1680 	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1681 			data->last_fa_cnt_ofdm);
1682 	pos += scnprintf(buf + pos, bufsz - pos,
1683 			"last_bad_plcp_cnt_cck:\t\t %u\n",
1684 			data->last_bad_plcp_cnt_cck);
1685 	pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1686 			data->last_fa_cnt_cck);
1687 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1688 			data->nrg_curr_state);
1689 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1690 			data->nrg_prev_state);
1691 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1692 	for (cnt = 0; cnt < 10; cnt++) {
1693 		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1694 				data->nrg_value[cnt]);
1695 	}
1696 	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1697 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1698 	for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1699 		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1700 				data->nrg_silence_rssi[cnt]);
1701 	}
1702 	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1703 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1704 			data->nrg_silence_ref);
1705 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1706 			data->nrg_energy_idx);
1707 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1708 			data->nrg_silence_idx);
1709 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1710 			data->nrg_th_cck);
1711 	pos += scnprintf(buf + pos, bufsz - pos,
1712 			"nrg_auto_corr_silence_diff:\t %u\n",
1713 			data->nrg_auto_corr_silence_diff);
1714 	pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1715 			data->num_in_cck_no_fa);
1716 	pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1717 			data->nrg_th_ofdm);
1718 
1719 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1720 	kfree(buf);
1721 	return ret;
1722 }
1723 
1724 
iwl_dbgfs_chain_noise_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1725 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1726 					char __user *user_buf,
1727 					size_t count, loff_t *ppos) {
1728 
1729 	struct iwl_priv *priv = file->private_data;
1730 	int pos = 0;
1731 	int cnt = 0;
1732 	char *buf;
1733 	int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1734 	ssize_t ret;
1735 	struct iwl_chain_noise_data *data;
1736 
1737 	data = &priv->chain_noise_data;
1738 	buf = kzalloc(bufsz, GFP_KERNEL);
1739 	if (!buf)
1740 		return -ENOMEM;
1741 
1742 	pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1743 			data->active_chains);
1744 	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1745 			data->chain_noise_a);
1746 	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1747 			data->chain_noise_b);
1748 	pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1749 			data->chain_noise_c);
1750 	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1751 			data->chain_signal_a);
1752 	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1753 			data->chain_signal_b);
1754 	pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1755 			data->chain_signal_c);
1756 	pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1757 			data->beacon_count);
1758 
1759 	pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1760 	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1761 		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1762 				data->disconn_array[cnt]);
1763 	}
1764 	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1765 	pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1766 	for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1767 		pos += scnprintf(buf + pos, bufsz - pos, " %u",
1768 				data->delta_gain_code[cnt]);
1769 	}
1770 	pos += scnprintf(buf + pos, bufsz - pos, "\n");
1771 	pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1772 			data->radio_write);
1773 	pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1774 			data->state);
1775 
1776 	ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1777 	kfree(buf);
1778 	return ret;
1779 }
1780 
iwl_dbgfs_power_save_status_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1781 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1782 						    char __user *user_buf,
1783 						    size_t count, loff_t *ppos)
1784 {
1785 	struct iwl_priv *priv = file->private_data;
1786 	char buf[60];
1787 	int pos = 0;
1788 	const size_t bufsz = sizeof(buf);
1789 	u32 pwrsave_status;
1790 
1791 	pwrsave_status = iwl_read32(priv->trans, CSR_GP_CNTRL) &
1792 			CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1793 
1794 	pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1795 	pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1796 		(pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1797 		(pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1798 		(pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1799 		"error");
1800 
1801 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1802 }
1803 
iwl_dbgfs_clear_ucode_statistics_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1804 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1805 					 const char __user *user_buf,
1806 					 size_t count, loff_t *ppos)
1807 {
1808 	struct iwl_priv *priv = file->private_data;
1809 	char buf[8];
1810 	int buf_size;
1811 	int clear;
1812 
1813 	memset(buf, 0, sizeof(buf));
1814 	buf_size = min(count, sizeof(buf) -  1);
1815 	if (copy_from_user(buf, user_buf, buf_size))
1816 		return -EFAULT;
1817 	if (sscanf(buf, "%d", &clear) != 1)
1818 		return -EFAULT;
1819 
1820 	/* make request to uCode to retrieve statistics information */
1821 	mutex_lock(&priv->mutex);
1822 	iwl_send_statistics_request(priv, 0, true);
1823 	mutex_unlock(&priv->mutex);
1824 
1825 	return count;
1826 }
1827 
iwl_dbgfs_ucode_tracing_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1828 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1829 					char __user *user_buf,
1830 					size_t count, loff_t *ppos) {
1831 
1832 	struct iwl_priv *priv = file->private_data;
1833 	int pos = 0;
1834 	char buf[128];
1835 	const size_t bufsz = sizeof(buf);
1836 
1837 	pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1838 			priv->event_log.ucode_trace ? "On" : "Off");
1839 	pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1840 			priv->event_log.non_wraps_count);
1841 	pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1842 			priv->event_log.wraps_once_count);
1843 	pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1844 			priv->event_log.wraps_more_count);
1845 
1846 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1847 }
1848 
iwl_dbgfs_ucode_tracing_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1849 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1850 					 const char __user *user_buf,
1851 					 size_t count, loff_t *ppos)
1852 {
1853 	struct iwl_priv *priv = file->private_data;
1854 	char buf[8];
1855 	int buf_size;
1856 	int trace;
1857 
1858 	memset(buf, 0, sizeof(buf));
1859 	buf_size = min(count, sizeof(buf) -  1);
1860 	if (copy_from_user(buf, user_buf, buf_size))
1861 		return -EFAULT;
1862 	if (sscanf(buf, "%d", &trace) != 1)
1863 		return -EFAULT;
1864 
1865 	if (trace) {
1866 		priv->event_log.ucode_trace = true;
1867 		if (iwl_is_alive(priv)) {
1868 			/* start collecting data now */
1869 			mod_timer(&priv->ucode_trace, jiffies);
1870 		}
1871 	} else {
1872 		priv->event_log.ucode_trace = false;
1873 		del_timer_sync(&priv->ucode_trace);
1874 	}
1875 
1876 	return count;
1877 }
1878 
iwl_dbgfs_rxon_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1879 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1880 					 char __user *user_buf,
1881 					 size_t count, loff_t *ppos) {
1882 
1883 	struct iwl_priv *priv = file->private_data;
1884 	int len = 0;
1885 	char buf[20];
1886 
1887 	len = sprintf(buf, "0x%04X\n",
1888 		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1889 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1890 }
1891 
iwl_dbgfs_rxon_filter_flags_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1892 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1893 						char __user *user_buf,
1894 						size_t count, loff_t *ppos) {
1895 
1896 	struct iwl_priv *priv = file->private_data;
1897 	int len = 0;
1898 	char buf[20];
1899 
1900 	len = sprintf(buf, "0x%04X\n",
1901 		le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1902 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1903 }
1904 
iwl_dbgfs_missed_beacon_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1905 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1906 					char __user *user_buf,
1907 					size_t count, loff_t *ppos) {
1908 
1909 	struct iwl_priv *priv = file->private_data;
1910 	int pos = 0;
1911 	char buf[12];
1912 	const size_t bufsz = sizeof(buf);
1913 
1914 	pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1915 			priv->missed_beacon_threshold);
1916 
1917 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1918 }
1919 
iwl_dbgfs_missed_beacon_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1920 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1921 					 const char __user *user_buf,
1922 					 size_t count, loff_t *ppos)
1923 {
1924 	struct iwl_priv *priv = file->private_data;
1925 	char buf[8];
1926 	int buf_size;
1927 	int missed;
1928 
1929 	memset(buf, 0, sizeof(buf));
1930 	buf_size = min(count, sizeof(buf) -  1);
1931 	if (copy_from_user(buf, user_buf, buf_size))
1932 		return -EFAULT;
1933 	if (sscanf(buf, "%d", &missed) != 1)
1934 		return -EINVAL;
1935 
1936 	if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1937 	    missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1938 		priv->missed_beacon_threshold =
1939 			IWL_MISSED_BEACON_THRESHOLD_DEF;
1940 	else
1941 		priv->missed_beacon_threshold = missed;
1942 
1943 	return count;
1944 }
1945 
iwl_dbgfs_plcp_delta_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1946 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1947 					char __user *user_buf,
1948 					size_t count, loff_t *ppos) {
1949 
1950 	struct iwl_priv *priv = file->private_data;
1951 	int pos = 0;
1952 	char buf[12];
1953 	const size_t bufsz = sizeof(buf);
1954 
1955 	pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1956 			priv->plcp_delta_threshold);
1957 
1958 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1959 }
1960 
iwl_dbgfs_plcp_delta_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)1961 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1962 					const char __user *user_buf,
1963 					size_t count, loff_t *ppos) {
1964 
1965 	struct iwl_priv *priv = file->private_data;
1966 	char buf[8];
1967 	int buf_size;
1968 	int plcp;
1969 
1970 	memset(buf, 0, sizeof(buf));
1971 	buf_size = min(count, sizeof(buf) -  1);
1972 	if (copy_from_user(buf, user_buf, buf_size))
1973 		return -EFAULT;
1974 	if (sscanf(buf, "%d", &plcp) != 1)
1975 		return -EINVAL;
1976 	if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1977 		(plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1978 		priv->plcp_delta_threshold =
1979 			IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1980 	else
1981 		priv->plcp_delta_threshold = plcp;
1982 	return count;
1983 }
1984 
iwl_dbgfs_rf_reset_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)1985 static ssize_t iwl_dbgfs_rf_reset_read(struct file *file,
1986 				       char __user *user_buf,
1987 				       size_t count, loff_t *ppos)
1988 {
1989 	struct iwl_priv *priv = file->private_data;
1990 	int pos = 0;
1991 	char buf[300];
1992 	const size_t bufsz = sizeof(buf);
1993 	struct iwl_rf_reset *rf_reset = &priv->rf_reset;
1994 
1995 	pos += scnprintf(buf + pos, bufsz - pos,
1996 			"RF reset statistics\n");
1997 	pos += scnprintf(buf + pos, bufsz - pos,
1998 			"\tnumber of reset request: %d\n",
1999 			rf_reset->reset_request_count);
2000 	pos += scnprintf(buf + pos, bufsz - pos,
2001 			"\tnumber of reset request success: %d\n",
2002 			rf_reset->reset_success_count);
2003 	pos += scnprintf(buf + pos, bufsz - pos,
2004 			"\tnumber of reset request reject: %d\n",
2005 			rf_reset->reset_reject_count);
2006 
2007 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2008 }
2009 
iwl_dbgfs_rf_reset_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2010 static ssize_t iwl_dbgfs_rf_reset_write(struct file *file,
2011 					const char __user *user_buf,
2012 					size_t count, loff_t *ppos) {
2013 
2014 	struct iwl_priv *priv = file->private_data;
2015 	int ret;
2016 
2017 	ret = iwl_force_rf_reset(priv, true);
2018 	return ret ? ret : count;
2019 }
2020 
iwl_dbgfs_txfifo_flush_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2021 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
2022 					const char __user *user_buf,
2023 					size_t count, loff_t *ppos) {
2024 
2025 	struct iwl_priv *priv = file->private_data;
2026 	char buf[8];
2027 	int buf_size;
2028 	int flush;
2029 
2030 	memset(buf, 0, sizeof(buf));
2031 	buf_size = min(count, sizeof(buf) -  1);
2032 	if (copy_from_user(buf, user_buf, buf_size))
2033 		return -EFAULT;
2034 	if (sscanf(buf, "%d", &flush) != 1)
2035 		return -EINVAL;
2036 
2037 	if (iwl_is_rfkill(priv))
2038 		return -EFAULT;
2039 
2040 	iwlagn_dev_txfifo_flush(priv);
2041 
2042 	return count;
2043 }
2044 
iwl_dbgfs_bt_traffic_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2045 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
2046 					char __user *user_buf,
2047 					size_t count, loff_t *ppos) {
2048 
2049 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2050 	int pos = 0;
2051 	char buf[200];
2052 	const size_t bufsz = sizeof(buf);
2053 
2054 	if (!priv->bt_enable_flag) {
2055 		pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
2056 		return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2057 	}
2058 	pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
2059 		priv->bt_enable_flag);
2060 	pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
2061 		priv->bt_full_concurrent ? "full concurrency" : "3-wire");
2062 	pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
2063 			 "last traffic notif: %d\n",
2064 		priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
2065 	pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
2066 			 "kill_ack_mask: %x, kill_cts_mask: %x\n",
2067 		priv->bt_ch_announce, priv->kill_ack_mask,
2068 		priv->kill_cts_mask);
2069 
2070 	pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
2071 	switch (priv->bt_traffic_load) {
2072 	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
2073 		pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
2074 		break;
2075 	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
2076 		pos += scnprintf(buf + pos, bufsz - pos, "High\n");
2077 		break;
2078 	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
2079 		pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
2080 		break;
2081 	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
2082 	default:
2083 		pos += scnprintf(buf + pos, bufsz - pos, "None\n");
2084 		break;
2085 	}
2086 
2087 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2088 }
2089 
iwl_dbgfs_protection_mode_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2090 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
2091 					char __user *user_buf,
2092 					size_t count, loff_t *ppos)
2093 {
2094 	struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2095 
2096 	int pos = 0;
2097 	char buf[40];
2098 	const size_t bufsz = sizeof(buf);
2099 
2100 	if (priv->cfg->ht_params)
2101 		pos += scnprintf(buf + pos, bufsz - pos,
2102 			 "use %s for aggregation\n",
2103 			 (priv->hw_params.use_rts_for_aggregation) ?
2104 				"rts/cts" : "cts-to-self");
2105 	else
2106 		pos += scnprintf(buf + pos, bufsz - pos, "N/A");
2107 
2108 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2109 }
2110 
iwl_dbgfs_protection_mode_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2111 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
2112 					const char __user *user_buf,
2113 					size_t count, loff_t *ppos) {
2114 
2115 	struct iwl_priv *priv = file->private_data;
2116 	char buf[8];
2117 	int buf_size;
2118 	int rts;
2119 
2120 	if (!priv->cfg->ht_params)
2121 		return -EINVAL;
2122 
2123 	memset(buf, 0, sizeof(buf));
2124 	buf_size = min(count, sizeof(buf) -  1);
2125 	if (copy_from_user(buf, user_buf, buf_size))
2126 		return -EFAULT;
2127 	if (sscanf(buf, "%d", &rts) != 1)
2128 		return -EINVAL;
2129 	if (rts)
2130 		priv->hw_params.use_rts_for_aggregation = true;
2131 	else
2132 		priv->hw_params.use_rts_for_aggregation = false;
2133 	return count;
2134 }
2135 
iwl_cmd_echo_test(struct iwl_priv * priv)2136 static int iwl_cmd_echo_test(struct iwl_priv *priv)
2137 {
2138 	int ret;
2139 	struct iwl_host_cmd cmd = {
2140 		.id = REPLY_ECHO,
2141 		.len = { 0 },
2142 	};
2143 
2144 	ret = iwl_dvm_send_cmd(priv, &cmd);
2145 	if (ret)
2146 		IWL_ERR(priv, "echo testing fail: 0X%x\n", ret);
2147 	else
2148 		IWL_DEBUG_INFO(priv, "echo testing pass\n");
2149 	return ret;
2150 }
2151 
iwl_dbgfs_echo_test_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2152 static ssize_t iwl_dbgfs_echo_test_write(struct file *file,
2153 					const char __user *user_buf,
2154 					size_t count, loff_t *ppos)
2155 {
2156 	struct iwl_priv *priv = file->private_data;
2157 	char buf[8];
2158 	int buf_size;
2159 
2160 	memset(buf, 0, sizeof(buf));
2161 	buf_size = min(count, sizeof(buf) -  1);
2162 	if (copy_from_user(buf, user_buf, buf_size))
2163 		return -EFAULT;
2164 
2165 	iwl_cmd_echo_test(priv);
2166 	return count;
2167 }
2168 
2169 #ifdef CONFIG_IWLWIFI_DEBUG
iwl_dbgfs_log_event_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2170 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
2171 					 char __user *user_buf,
2172 					 size_t count, loff_t *ppos)
2173 {
2174 	struct iwl_priv *priv = file->private_data;
2175 	char *buf = NULL;
2176 	ssize_t ret;
2177 
2178 	ret = iwl_dump_nic_event_log(priv, true, &buf);
2179 	if (ret > 0)
2180 		ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
2181 	kfree(buf);
2182 	return ret;
2183 }
2184 
iwl_dbgfs_log_event_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2185 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
2186 					const char __user *user_buf,
2187 					size_t count, loff_t *ppos)
2188 {
2189 	struct iwl_priv *priv = file->private_data;
2190 	u32 event_log_flag;
2191 	char buf[8];
2192 	int buf_size;
2193 
2194 	/* check that the interface is up */
2195 	if (!iwl_is_ready(priv))
2196 		return -EAGAIN;
2197 
2198 	memset(buf, 0, sizeof(buf));
2199 	buf_size = min(count, sizeof(buf) -  1);
2200 	if (copy_from_user(buf, user_buf, buf_size))
2201 		return -EFAULT;
2202 	if (sscanf(buf, "%u", &event_log_flag) != 1)
2203 		return -EFAULT;
2204 	if (event_log_flag == 1)
2205 		iwl_dump_nic_event_log(priv, true, NULL);
2206 
2207 	return count;
2208 }
2209 #endif
2210 
iwl_dbgfs_calib_disabled_read(struct file * file,char __user * user_buf,size_t count,loff_t * ppos)2211 static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file,
2212 					 char __user *user_buf,
2213 					 size_t count, loff_t *ppos)
2214 {
2215 	struct iwl_priv *priv = file->private_data;
2216 	char buf[120];
2217 	int pos = 0;
2218 	const size_t bufsz = sizeof(buf);
2219 
2220 	pos += scnprintf(buf + pos, bufsz - pos,
2221 			 "Sensitivity calibrations %s\n",
2222 			 (priv->calib_disabled &
2223 					IWL_SENSITIVITY_CALIB_DISABLED) ?
2224 			 "DISABLED" : "ENABLED");
2225 	pos += scnprintf(buf + pos, bufsz - pos,
2226 			 "Chain noise calibrations %s\n",
2227 			 (priv->calib_disabled &
2228 					IWL_CHAIN_NOISE_CALIB_DISABLED) ?
2229 			 "DISABLED" : "ENABLED");
2230 	pos += scnprintf(buf + pos, bufsz - pos,
2231 			 "Tx power calibrations %s\n",
2232 			 (priv->calib_disabled &
2233 					IWL_TX_POWER_CALIB_DISABLED) ?
2234 			 "DISABLED" : "ENABLED");
2235 
2236 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2237 }
2238 
iwl_dbgfs_calib_disabled_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2239 static ssize_t iwl_dbgfs_calib_disabled_write(struct file *file,
2240 					      const char __user *user_buf,
2241 					      size_t count, loff_t *ppos)
2242 {
2243 	struct iwl_priv *priv = file->private_data;
2244 	char buf[8];
2245 	u32 calib_disabled;
2246 	int buf_size;
2247 
2248 	memset(buf, 0, sizeof(buf));
2249 	buf_size = min(count, sizeof(buf) - 1);
2250 	if (copy_from_user(buf, user_buf, buf_size))
2251 		return -EFAULT;
2252 	if (sscanf(buf, "%x", &calib_disabled) != 1)
2253 		return -EFAULT;
2254 
2255 	priv->calib_disabled = calib_disabled;
2256 
2257 	return count;
2258 }
2259 
iwl_dbgfs_fw_restart_write(struct file * file,const char __user * user_buf,size_t count,loff_t * ppos)2260 static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
2261 					  const char __user *user_buf,
2262 					  size_t count, loff_t *ppos)
2263 {
2264 	struct iwl_priv *priv = file->private_data;
2265 	bool fw_restart = iwlwifi_mod_params.fw_restart;
2266 	int __maybe_unused ret;
2267 
2268 	iwlwifi_mod_params.fw_restart = true;
2269 
2270 	mutex_lock(&priv->mutex);
2271 
2272 	/* take the return value to make compiler happy - it will fail anyway */
2273 	ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL);
2274 
2275 	mutex_unlock(&priv->mutex);
2276 
2277 	iwlwifi_mod_params.fw_restart = fw_restart;
2278 
2279 	return count;
2280 }
2281 
2282 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2283 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2284 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2285 DEBUGFS_READ_FILE_OPS(sensitivity);
2286 DEBUGFS_READ_FILE_OPS(chain_noise);
2287 DEBUGFS_READ_FILE_OPS(power_save_status);
2288 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2289 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2290 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2291 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2292 DEBUGFS_READ_WRITE_FILE_OPS(rf_reset);
2293 DEBUGFS_READ_FILE_OPS(rxon_flags);
2294 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
2295 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
2296 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
2297 DEBUGFS_READ_FILE_OPS(bt_traffic);
2298 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
2299 DEBUGFS_READ_FILE_OPS(reply_tx_error);
2300 DEBUGFS_WRITE_FILE_OPS(echo_test);
2301 DEBUGFS_WRITE_FILE_OPS(fw_restart);
2302 #ifdef CONFIG_IWLWIFI_DEBUG
2303 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
2304 #endif
2305 DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled);
2306 
2307 /*
2308  * Create the debugfs files and directories
2309  *
2310  */
iwl_dbgfs_register(struct iwl_priv * priv,struct dentry * dbgfs_dir)2311 void iwl_dbgfs_register(struct iwl_priv *priv, struct dentry *dbgfs_dir)
2312 {
2313 	struct dentry *dir_data, *dir_rf, *dir_debug;
2314 
2315 	priv->debugfs_dir = dbgfs_dir;
2316 
2317 	dir_data = debugfs_create_dir("data", dbgfs_dir);
2318 	dir_rf = debugfs_create_dir("rf", dbgfs_dir);
2319 	dir_debug = debugfs_create_dir("debug", dbgfs_dir);
2320 
2321 	DEBUGFS_ADD_FILE(nvm, dir_data, 0400);
2322 	DEBUGFS_ADD_FILE(sram, dir_data, 0600);
2323 	DEBUGFS_ADD_FILE(wowlan_sram, dir_data, 0400);
2324 	DEBUGFS_ADD_FILE(stations, dir_data, 0400);
2325 	DEBUGFS_ADD_FILE(channels, dir_data, 0400);
2326 	DEBUGFS_ADD_FILE(status, dir_data, 0400);
2327 	DEBUGFS_ADD_FILE(rx_handlers, dir_data, 0600);
2328 	DEBUGFS_ADD_FILE(qos, dir_data, 0400);
2329 	DEBUGFS_ADD_FILE(sleep_level_override, dir_data, 0600);
2330 	DEBUGFS_ADD_FILE(current_sleep_command, dir_data, 0400);
2331 	DEBUGFS_ADD_FILE(thermal_throttling, dir_data, 0400);
2332 	DEBUGFS_ADD_FILE(disable_ht40, dir_data, 0600);
2333 	DEBUGFS_ADD_FILE(temperature, dir_data, 0400);
2334 
2335 	DEBUGFS_ADD_FILE(power_save_status, dir_debug, 0400);
2336 	DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, 0200);
2337 	DEBUGFS_ADD_FILE(missed_beacon, dir_debug, 0200);
2338 	DEBUGFS_ADD_FILE(plcp_delta, dir_debug, 0600);
2339 	DEBUGFS_ADD_FILE(rf_reset, dir_debug, 0600);
2340 	DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, 0400);
2341 	DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, 0400);
2342 	DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, 0400);
2343 	DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, 0200);
2344 	DEBUGFS_ADD_FILE(protection_mode, dir_debug, 0600);
2345 	DEBUGFS_ADD_FILE(sensitivity, dir_debug, 0400);
2346 	DEBUGFS_ADD_FILE(chain_noise, dir_debug, 0400);
2347 	DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, 0600);
2348 	DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, 0400);
2349 	DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, 0400);
2350 	DEBUGFS_ADD_FILE(rxon_flags, dir_debug, 0200);
2351 	DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, 0200);
2352 	DEBUGFS_ADD_FILE(echo_test, dir_debug, 0200);
2353 	DEBUGFS_ADD_FILE(fw_restart, dir_debug, 0200);
2354 #ifdef CONFIG_IWLWIFI_DEBUG
2355 	DEBUGFS_ADD_FILE(log_event, dir_debug, 0600);
2356 #endif
2357 
2358 	if (iwl_advanced_bt_coexist(priv))
2359 		DEBUGFS_ADD_FILE(bt_traffic, dir_debug, 0400);
2360 
2361 	/* Calibrations disabled/enabled status*/
2362 	DEBUGFS_ADD_FILE(calib_disabled, dir_rf, 0600);
2363 
2364 	/*
2365 	 * Create a symlink with mac80211. This is not very robust, as it does
2366 	 * not remove the symlink created. The implicit assumption is that
2367 	 * when the opmode exits, mac80211 will also exit, and will remove
2368 	 * this symlink as part of its cleanup.
2369 	 */
2370 	if (priv->mac80211_registered) {
2371 		char buf[100];
2372 		struct dentry *mac80211_dir, *dev_dir;
2373 
2374 		dev_dir = dbgfs_dir->d_parent;
2375 		mac80211_dir = priv->hw->wiphy->debugfsdir;
2376 
2377 		snprintf(buf, 100, "../../%pd2", dev_dir);
2378 
2379 		debugfs_create_symlink("iwlwifi", mac80211_dir, buf);
2380 	}
2381 }
2382