1 /******************************************************************************
5 * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
29 #include <linux/slab.h>
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/debugfs.h>
34 #include <linux/ieee80211.h>
35 #include <net/mac80211.h>
39 #include "iwl-debug.h"
42 #include "iwl-calib.h"
44 /* create and remove of files */
45 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
46 if (!debugfs_create_file(#name, mode, parent, priv, \
47 &iwl_dbgfs_##name##_ops)) \
51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
52 struct dentry *__tmp; \
53 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
55 if (IS_ERR(__tmp) || !__tmp) \
59 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
60 struct dentry *__tmp; \
61 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
63 if (IS_ERR(__tmp) || !__tmp) \
68 #define DEBUGFS_READ_FUNC(name) \
69 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
70 char __user *user_buf, \
71 size_t count, loff_t *ppos);
73 #define DEBUGFS_WRITE_FUNC(name) \
74 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
75 const char __user *user_buf, \
76 size_t count, loff_t *ppos);
79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
81 file->private_data = inode->i_private;
85 #define DEBUGFS_READ_FILE_OPS(name) \
86 DEBUGFS_READ_FUNC(name); \
87 static const struct file_operations iwl_dbgfs_##name##_ops = { \
88 .read = iwl_dbgfs_##name##_read, \
89 .open = iwl_dbgfs_open_file_generic, \
92 #define DEBUGFS_WRITE_FILE_OPS(name) \
93 DEBUGFS_WRITE_FUNC(name); \
94 static const struct file_operations iwl_dbgfs_##name##_ops = { \
95 .write = iwl_dbgfs_##name##_write, \
96 .open = iwl_dbgfs_open_file_generic, \
100 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
101 DEBUGFS_READ_FUNC(name); \
102 DEBUGFS_WRITE_FUNC(name); \
103 static const struct file_operations iwl_dbgfs_##name##_ops = { \
104 .write = iwl_dbgfs_##name##_write, \
105 .read = iwl_dbgfs_##name##_read, \
106 .open = iwl_dbgfs_open_file_generic, \
109 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
110 char __user *user_buf,
111 size_t count, loff_t *ppos) {
113 struct iwl_priv *priv = file->private_data;
119 const size_t bufsz = 100 +
120 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
121 buf = kzalloc(bufsz, GFP_KERNEL);
124 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
125 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
126 pos += scnprintf(buf + pos, bufsz - pos,
128 get_mgmt_string(cnt),
129 priv->tx_stats.mgmt[cnt]);
131 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
132 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
133 pos += scnprintf(buf + pos, bufsz - pos,
135 get_ctrl_string(cnt),
136 priv->tx_stats.ctrl[cnt]);
138 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
139 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
140 priv->tx_stats.data_cnt);
141 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
142 priv->tx_stats.data_bytes);
143 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
148 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
149 const char __user *user_buf,
150 size_t count, loff_t *ppos)
152 struct iwl_priv *priv = file->private_data;
157 memset(buf, 0, sizeof(buf));
158 buf_size = min(count, sizeof(buf) - 1);
159 if (copy_from_user(buf, user_buf, buf_size))
161 if (sscanf(buf, "%x", &clear_flag) != 1)
163 iwl_clear_traffic_stats(priv);
168 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
169 char __user *user_buf,
170 size_t count, loff_t *ppos) {
172 struct iwl_priv *priv = file->private_data;
177 const size_t bufsz = 100 +
178 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
179 buf = kzalloc(bufsz, GFP_KERNEL);
183 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
184 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
185 pos += scnprintf(buf + pos, bufsz - pos,
187 get_mgmt_string(cnt),
188 priv->rx_stats.mgmt[cnt]);
190 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
191 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
192 pos += scnprintf(buf + pos, bufsz - pos,
194 get_ctrl_string(cnt),
195 priv->rx_stats.ctrl[cnt]);
197 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
198 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
199 priv->rx_stats.data_cnt);
200 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
201 priv->rx_stats.data_bytes);
203 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
208 #define BYTE1_MASK 0x000000ff;
209 #define BYTE2_MASK 0x0000ffff;
210 #define BYTE3_MASK 0x00ffffff;
211 static ssize_t iwl_dbgfs_sram_read(struct file *file,
212 char __user *user_buf,
213 size_t count, loff_t *ppos)
220 struct iwl_priv *priv = file->private_data;
223 /* default is to dump the entire data segment */
224 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
225 priv->dbgfs_sram_offset = 0x800000;
226 if (priv->ucode_type == UCODE_INIT)
227 priv->dbgfs_sram_len = priv->ucode_init_data.len;
229 priv->dbgfs_sram_len = priv->ucode_data.len;
231 bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10;
232 buf = kmalloc(bufsz, GFP_KERNEL);
235 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
236 priv->dbgfs_sram_len);
237 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
238 priv->dbgfs_sram_offset);
239 for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
240 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
241 priv->dbgfs_sram_len - i);
256 pos += scnprintf(buf + pos, bufsz - pos, "\n");
257 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
259 pos += scnprintf(buf + pos, bufsz - pos, "\n");
261 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
266 static ssize_t iwl_dbgfs_sram_write(struct file *file,
267 const char __user *user_buf,
268 size_t count, loff_t *ppos)
270 struct iwl_priv *priv = file->private_data;
275 memset(buf, 0, sizeof(buf));
276 buf_size = min(count, sizeof(buf) - 1);
277 if (copy_from_user(buf, user_buf, buf_size))
280 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
281 priv->dbgfs_sram_offset = offset;
282 priv->dbgfs_sram_len = len;
284 priv->dbgfs_sram_offset = 0;
285 priv->dbgfs_sram_len = 0;
291 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
292 size_t count, loff_t *ppos)
294 struct iwl_priv *priv = file->private_data;
295 struct iwl_station_entry *station;
296 int max_sta = priv->hw_params.max_stations;
300 /* Add 30 for initial string */
301 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
303 buf = kmalloc(bufsz, GFP_KERNEL);
307 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
310 for (i = 0; i < max_sta; i++) {
311 station = &priv->stations[i];
314 pos += scnprintf(buf + pos, bufsz - pos,
315 "station %d - addr: %pM, flags: %#x\n",
316 i, station->sta.sta.addr,
317 station->sta.station_flags_msk);
318 pos += scnprintf(buf + pos, bufsz - pos,
319 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
320 pos += scnprintf(buf + pos, bufsz - pos,
321 "start_idx\tbitmap\t\t\trate_n_flags\n");
323 for (j = 0; j < MAX_TID_COUNT; j++) {
324 pos += scnprintf(buf + pos, bufsz - pos,
325 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
326 j, station->tid[j].seq_number,
327 station->tid[j].agg.txq_id,
328 station->tid[j].agg.frame_count,
329 station->tid[j].tfds_in_queue,
330 station->tid[j].agg.start_idx,
331 station->tid[j].agg.bitmap,
332 station->tid[j].agg.rate_n_flags);
334 if (station->tid[j].agg.wait_for_ba)
335 pos += scnprintf(buf + pos, bufsz - pos,
337 pos += scnprintf(buf + pos, bufsz - pos, "\n");
340 pos += scnprintf(buf + pos, bufsz - pos, "\n");
343 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
348 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
349 char __user *user_buf,
354 struct iwl_priv *priv = file->private_data;
355 int pos = 0, ofs = 0, buf_size = 0;
359 size_t eeprom_len = priv->cfg->eeprom_size;
360 buf_size = 4 * eeprom_len + 256;
362 if (eeprom_len % 16) {
363 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
369 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
373 /* 4 characters for byte 0xYY */
374 buf = kzalloc(buf_size, GFP_KERNEL);
376 IWL_ERR(priv, "Can not allocate Buffer\n");
379 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
380 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
382 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
383 ? "OTP" : "EEPROM", eeprom_ver);
384 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
385 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
386 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
388 pos += strlen(buf + pos);
389 if (buf_size - pos > 0)
393 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
398 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
399 char __user *user_buf,
400 size_t count, loff_t *ppos)
402 struct iwl_priv *priv = file->private_data;
405 ssize_t ret = -ENOMEM;
407 ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
408 priv, true, &buf, true);
410 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
416 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
417 const char __user *user_buf,
418 size_t count, loff_t *ppos)
420 struct iwl_priv *priv = file->private_data;
425 memset(buf, 0, sizeof(buf));
426 buf_size = min(count, sizeof(buf) - 1);
427 if (copy_from_user(buf, user_buf, buf_size))
429 if (sscanf(buf, "%d", &event_log_flag) != 1)
431 if (event_log_flag == 1)
432 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
440 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
441 size_t count, loff_t *ppos)
443 struct iwl_priv *priv = file->private_data;
444 struct ieee80211_channel *channels = NULL;
445 const struct ieee80211_supported_band *supp_band = NULL;
446 int pos = 0, i, bufsz = PAGE_SIZE;
450 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
453 buf = kzalloc(bufsz, GFP_KERNEL);
455 IWL_ERR(priv, "Can not allocate Buffer\n");
459 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
461 channels = supp_band->channels;
463 pos += scnprintf(buf + pos, bufsz - pos,
464 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
465 supp_band->n_channels);
467 for (i = 0; i < supp_band->n_channels; i++)
468 pos += scnprintf(buf + pos, bufsz - pos,
469 "%d: %ddBm: BSS%s%s, %s.\n",
470 ieee80211_frequency_to_channel(
471 channels[i].center_freq),
472 channels[i].max_power,
473 channels[i].flags & IEEE80211_CHAN_RADAR ?
474 " (IEEE 802.11h required)" : "",
475 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
476 || (channels[i].flags &
477 IEEE80211_CHAN_RADAR)) ? "" :
480 IEEE80211_CHAN_PASSIVE_SCAN ?
481 "passive only" : "active/passive");
483 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
485 channels = supp_band->channels;
487 pos += scnprintf(buf + pos, bufsz - pos,
488 "Displaying %d channels in 5.2GHz band (802.11a)\n",
489 supp_band->n_channels);
491 for (i = 0; i < supp_band->n_channels; i++)
492 pos += scnprintf(buf + pos, bufsz - pos,
493 "%d: %ddBm: BSS%s%s, %s.\n",
494 ieee80211_frequency_to_channel(
495 channels[i].center_freq),
496 channels[i].max_power,
497 channels[i].flags & IEEE80211_CHAN_RADAR ?
498 " (IEEE 802.11h required)" : "",
499 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
500 || (channels[i].flags &
501 IEEE80211_CHAN_RADAR)) ? "" :
504 IEEE80211_CHAN_PASSIVE_SCAN ?
505 "passive only" : "active/passive");
507 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
512 static ssize_t iwl_dbgfs_status_read(struct file *file,
513 char __user *user_buf,
514 size_t count, loff_t *ppos) {
516 struct iwl_priv *priv = file->private_data;
519 const size_t bufsz = sizeof(buf);
521 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
522 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
523 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
524 test_bit(STATUS_INT_ENABLED, &priv->status));
525 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
526 test_bit(STATUS_RF_KILL_HW, &priv->status));
527 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
528 test_bit(STATUS_CT_KILL, &priv->status));
529 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
530 test_bit(STATUS_INIT, &priv->status));
531 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
532 test_bit(STATUS_ALIVE, &priv->status));
533 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
534 test_bit(STATUS_READY, &priv->status));
535 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
536 test_bit(STATUS_TEMPERATURE, &priv->status));
537 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
538 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
539 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
540 test_bit(STATUS_EXIT_PENDING, &priv->status));
541 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
542 test_bit(STATUS_STATISTICS, &priv->status));
543 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
544 test_bit(STATUS_SCANNING, &priv->status));
545 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
546 test_bit(STATUS_SCAN_ABORTING, &priv->status));
547 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
548 test_bit(STATUS_SCAN_HW, &priv->status));
549 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
550 test_bit(STATUS_POWER_PMI, &priv->status));
551 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
552 test_bit(STATUS_FW_ERROR, &priv->status));
553 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
556 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
557 char __user *user_buf,
558 size_t count, loff_t *ppos) {
560 struct iwl_priv *priv = file->private_data;
564 int bufsz = 24 * 64; /* 24 items * 64 char per item */
567 buf = kzalloc(bufsz, GFP_KERNEL);
569 IWL_ERR(priv, "Can not allocate Buffer\n");
573 pos += scnprintf(buf + pos, bufsz - pos,
574 "Interrupt Statistics Report:\n");
576 pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
578 pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
580 if (priv->isr_stats.sw > 0) {
581 pos += scnprintf(buf + pos, bufsz - pos,
582 "\tLast Restarting Code: 0x%X\n",
583 priv->isr_stats.sw_err);
585 #ifdef CONFIG_IWLWIFI_DEBUG
586 pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
587 priv->isr_stats.sch);
588 pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
589 priv->isr_stats.alive);
591 pos += scnprintf(buf + pos, bufsz - pos,
592 "HW RF KILL switch toggled:\t %u\n",
593 priv->isr_stats.rfkill);
595 pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
596 priv->isr_stats.ctkill);
598 pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
599 priv->isr_stats.wakeup);
601 pos += scnprintf(buf + pos, bufsz - pos,
602 "Rx command responses:\t\t %u\n",
604 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
605 if (priv->isr_stats.rx_handlers[cnt] > 0)
606 pos += scnprintf(buf + pos, bufsz - pos,
607 "\tRx handler[%36s]:\t\t %u\n",
609 priv->isr_stats.rx_handlers[cnt]);
612 pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
615 pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
616 priv->isr_stats.unhandled);
618 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
623 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
624 const char __user *user_buf,
625 size_t count, loff_t *ppos)
627 struct iwl_priv *priv = file->private_data;
632 memset(buf, 0, sizeof(buf));
633 buf_size = min(count, sizeof(buf) - 1);
634 if (copy_from_user(buf, user_buf, buf_size))
636 if (sscanf(buf, "%x", &reset_flag) != 1)
639 iwl_clear_isr_stats(priv);
644 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
645 size_t count, loff_t *ppos)
647 struct iwl_priv *priv = file->private_data;
650 const size_t bufsz = sizeof(buf);
652 for (i = 0; i < AC_NUM; i++) {
653 pos += scnprintf(buf + pos, bufsz - pos,
654 "\tcw_min\tcw_max\taifsn\ttxop\n");
655 pos += scnprintf(buf + pos, bufsz - pos,
656 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
657 priv->qos_data.def_qos_parm.ac[i].cw_min,
658 priv->qos_data.def_qos_parm.ac[i].cw_max,
659 priv->qos_data.def_qos_parm.ac[i].aifsn,
660 priv->qos_data.def_qos_parm.ac[i].edca_txop);
662 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
665 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
666 size_t count, loff_t *ppos)
668 struct iwl_priv *priv = file->private_data;
671 const size_t bufsz = sizeof(buf);
673 pos += scnprintf(buf + pos, bufsz - pos,
674 "allow blinking: %s\n",
675 (priv->allow_blinking) ? "True" : "False");
676 if (priv->allow_blinking) {
677 pos += scnprintf(buf + pos, bufsz - pos,
678 "Led blinking rate: %u\n",
679 priv->last_blink_rate);
680 pos += scnprintf(buf + pos, bufsz - pos,
681 "Last blink time: %lu\n",
682 priv->last_blink_time);
685 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
688 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
689 char __user *user_buf,
690 size_t count, loff_t *ppos)
692 struct iwl_priv *priv = file->private_data;
693 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
694 struct iwl_tt_restriction *restriction;
697 const size_t bufsz = sizeof(buf);
699 pos += scnprintf(buf + pos, bufsz - pos,
700 "Thermal Throttling Mode: %s\n",
701 tt->advanced_tt ? "Advance" : "Legacy");
702 pos += scnprintf(buf + pos, bufsz - pos,
703 "Thermal Throttling State: %d\n",
705 if (tt->advanced_tt) {
706 restriction = tt->restriction + tt->state;
707 pos += scnprintf(buf + pos, bufsz - pos,
709 restriction->tx_stream);
710 pos += scnprintf(buf + pos, bufsz - pos,
712 restriction->rx_stream);
713 pos += scnprintf(buf + pos, bufsz - pos,
717 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
720 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
721 const char __user *user_buf,
722 size_t count, loff_t *ppos)
724 struct iwl_priv *priv = file->private_data;
729 memset(buf, 0, sizeof(buf));
730 buf_size = min(count, sizeof(buf) - 1);
731 if (copy_from_user(buf, user_buf, buf_size))
733 if (sscanf(buf, "%d", &ht40) != 1)
735 if (!iwl_is_associated(priv))
736 priv->disable_ht40 = ht40 ? true : false;
738 IWL_ERR(priv, "Sta associated with AP - "
739 "Change to 40MHz channel support is not allowed\n");
746 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
747 char __user *user_buf,
748 size_t count, loff_t *ppos)
750 struct iwl_priv *priv = file->private_data;
753 const size_t bufsz = sizeof(buf);
755 pos += scnprintf(buf + pos, bufsz - pos,
756 "11n 40MHz Mode: %s\n",
757 priv->disable_ht40 ? "Disabled" : "Enabled");
758 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
761 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
762 const char __user *user_buf,
763 size_t count, loff_t *ppos)
765 struct iwl_priv *priv = file->private_data;
770 memset(buf, 0, sizeof(buf));
771 buf_size = min(count, sizeof(buf) - 1);
772 if (copy_from_user(buf, user_buf, buf_size))
775 if (sscanf(buf, "%d", &value) != 1)
779 * Our users expect 0 to be "CAM", but 0 isn't actually
780 * valid here. However, let's not confuse them and present
781 * IWL_POWER_INDEX_1 as "1", not "0".
788 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
791 if (!iwl_is_ready_rf(priv))
794 priv->power_data.debug_sleep_level_override = value;
796 mutex_lock(&priv->mutex);
797 iwl_power_update_mode(priv, true);
798 mutex_unlock(&priv->mutex);
803 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
804 char __user *user_buf,
805 size_t count, loff_t *ppos)
807 struct iwl_priv *priv = file->private_data;
810 const size_t bufsz = sizeof(buf);
812 /* see the write function */
813 value = priv->power_data.debug_sleep_level_override;
817 pos = scnprintf(buf, bufsz, "%d\n", value);
818 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
821 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
822 char __user *user_buf,
823 size_t count, loff_t *ppos)
825 struct iwl_priv *priv = file->private_data;
828 const size_t bufsz = sizeof(buf);
829 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
831 pos += scnprintf(buf + pos, bufsz - pos,
832 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
833 pos += scnprintf(buf + pos, bufsz - pos,
834 "RX/TX timeout: %d/%d usec\n",
835 le32_to_cpu(cmd->rx_data_timeout),
836 le32_to_cpu(cmd->tx_data_timeout));
837 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
838 pos += scnprintf(buf + pos, bufsz - pos,
839 "sleep_interval[%d]: %d\n", i,
840 le32_to_cpu(cmd->sleep_interval[i]));
842 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
845 DEBUGFS_READ_WRITE_FILE_OPS(sram);
846 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
847 DEBUGFS_READ_FILE_OPS(nvm);
848 DEBUGFS_READ_FILE_OPS(stations);
849 DEBUGFS_READ_FILE_OPS(channels);
850 DEBUGFS_READ_FILE_OPS(status);
851 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
852 DEBUGFS_READ_FILE_OPS(qos);
853 DEBUGFS_READ_FILE_OPS(led);
854 DEBUGFS_READ_FILE_OPS(thermal_throttling);
855 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
856 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
857 DEBUGFS_READ_FILE_OPS(current_sleep_command);
859 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
860 char __user *user_buf,
861 size_t count, loff_t *ppos)
863 struct iwl_priv *priv = file->private_data;
864 int pos = 0, ofs = 0;
866 struct iwl_tx_queue *txq;
868 struct iwl_rx_queue *rxq = &priv->rxq;
870 int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
871 (priv->cfg->num_of_queues * 32 * 8) + 400;
876 IWL_ERR(priv, "txq not ready\n");
879 buf = kzalloc(bufsz, GFP_KERNEL);
881 IWL_ERR(priv, "Can not allocate buffer\n");
884 pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
885 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
886 txq = &priv->txq[cnt];
888 pos += scnprintf(buf + pos, bufsz - pos,
889 "q[%d]: read_ptr: %u, write_ptr: %u\n",
890 cnt, q->read_ptr, q->write_ptr);
892 if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
893 ptr = priv->tx_traffic;
894 pos += scnprintf(buf + pos, bufsz - pos,
895 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
896 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
897 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
898 entry++, ofs += 16) {
899 pos += scnprintf(buf + pos, bufsz - pos,
901 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
902 buf + pos, bufsz - pos, 0);
903 pos += strlen(buf + pos);
910 pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
911 pos += scnprintf(buf + pos, bufsz - pos,
912 "read: %u, write: %u\n",
913 rxq->read, rxq->write);
915 if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
916 ptr = priv->rx_traffic;
917 pos += scnprintf(buf + pos, bufsz - pos,
918 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
919 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
920 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
921 entry++, ofs += 16) {
922 pos += scnprintf(buf + pos, bufsz - pos,
924 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
925 buf + pos, bufsz - pos, 0);
926 pos += strlen(buf + pos);
933 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
938 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
939 const char __user *user_buf,
940 size_t count, loff_t *ppos)
942 struct iwl_priv *priv = file->private_data;
947 memset(buf, 0, sizeof(buf));
948 buf_size = min(count, sizeof(buf) - 1);
949 if (copy_from_user(buf, user_buf, buf_size))
951 if (sscanf(buf, "%d", &traffic_log) != 1)
953 if (traffic_log == 0)
954 iwl_reset_traffic_log(priv);
959 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
960 char __user *user_buf,
961 size_t count, loff_t *ppos) {
963 struct iwl_priv *priv = file->private_data;
964 struct iwl_tx_queue *txq;
970 const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
973 IWL_ERR(priv, "txq not ready\n");
976 buf = kzalloc(bufsz, GFP_KERNEL);
980 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
981 txq = &priv->txq[cnt];
983 pos += scnprintf(buf + pos, bufsz - pos,
984 "hwq %.2d: read=%u write=%u stop=%d"
985 " swq_id=%#.2x (ac %d/hwq %d)\n",
986 cnt, q->read_ptr, q->write_ptr,
987 !!test_bit(cnt, priv->queue_stopped),
989 txq->swq_id & 0x80 ? txq->swq_id & 3 :
991 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
995 /* for the ACs, display the stop count too */
996 pos += scnprintf(buf + pos, bufsz - pos,
998 atomic_read(&priv->queue_stop_count[cnt]));
1000 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1005 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1006 char __user *user_buf,
1007 size_t count, loff_t *ppos) {
1009 struct iwl_priv *priv = file->private_data;
1010 struct iwl_rx_queue *rxq = &priv->rxq;
1013 const size_t bufsz = sizeof(buf);
1015 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1017 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1019 pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1021 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1022 le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
1023 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1026 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1027 char __user *user_buf,
1028 size_t count, loff_t *ppos)
1030 struct iwl_priv *priv = file->private_data;
1031 return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1032 user_buf, count, ppos);
1035 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1036 char __user *user_buf,
1037 size_t count, loff_t *ppos)
1039 struct iwl_priv *priv = file->private_data;
1040 return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1041 user_buf, count, ppos);
1044 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1045 char __user *user_buf,
1046 size_t count, loff_t *ppos)
1048 struct iwl_priv *priv = file->private_data;
1049 return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1050 user_buf, count, ppos);
1053 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1054 char __user *user_buf,
1055 size_t count, loff_t *ppos) {
1057 struct iwl_priv *priv = file->private_data;
1061 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1063 struct iwl_sensitivity_data *data;
1065 data = &priv->sensitivity_data;
1066 buf = kzalloc(bufsz, GFP_KERNEL);
1068 IWL_ERR(priv, "Can not allocate Buffer\n");
1072 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1073 data->auto_corr_ofdm);
1074 pos += scnprintf(buf + pos, bufsz - pos,
1075 "auto_corr_ofdm_mrc:\t\t %u\n",
1076 data->auto_corr_ofdm_mrc);
1077 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1078 data->auto_corr_ofdm_x1);
1079 pos += scnprintf(buf + pos, bufsz - pos,
1080 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1081 data->auto_corr_ofdm_mrc_x1);
1082 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1083 data->auto_corr_cck);
1084 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1085 data->auto_corr_cck_mrc);
1086 pos += scnprintf(buf + pos, bufsz - pos,
1087 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1088 data->last_bad_plcp_cnt_ofdm);
1089 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1090 data->last_fa_cnt_ofdm);
1091 pos += scnprintf(buf + pos, bufsz - pos,
1092 "last_bad_plcp_cnt_cck:\t\t %u\n",
1093 data->last_bad_plcp_cnt_cck);
1094 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1095 data->last_fa_cnt_cck);
1096 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1097 data->nrg_curr_state);
1098 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1099 data->nrg_prev_state);
1100 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1101 for (cnt = 0; cnt < 10; cnt++) {
1102 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1103 data->nrg_value[cnt]);
1105 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1106 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1107 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1108 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1109 data->nrg_silence_rssi[cnt]);
1111 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1112 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1113 data->nrg_silence_ref);
1114 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1115 data->nrg_energy_idx);
1116 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1117 data->nrg_silence_idx);
1118 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1120 pos += scnprintf(buf + pos, bufsz - pos,
1121 "nrg_auto_corr_silence_diff:\t %u\n",
1122 data->nrg_auto_corr_silence_diff);
1123 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1124 data->num_in_cck_no_fa);
1125 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1128 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1134 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1135 char __user *user_buf,
1136 size_t count, loff_t *ppos) {
1138 struct iwl_priv *priv = file->private_data;
1142 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1144 struct iwl_chain_noise_data *data;
1146 data = &priv->chain_noise_data;
1147 buf = kzalloc(bufsz, GFP_KERNEL);
1149 IWL_ERR(priv, "Can not allocate Buffer\n");
1153 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1154 data->active_chains);
1155 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1156 data->chain_noise_a);
1157 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1158 data->chain_noise_b);
1159 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1160 data->chain_noise_c);
1161 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1162 data->chain_signal_a);
1163 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1164 data->chain_signal_b);
1165 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1166 data->chain_signal_c);
1167 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1168 data->beacon_count);
1170 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1171 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1172 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1173 data->disconn_array[cnt]);
1175 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1176 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1177 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1178 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1179 data->delta_gain_code[cnt]);
1181 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1182 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1184 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1187 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1192 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1193 char __user *user_buf,
1194 size_t count, loff_t *ppos)
1196 struct iwl_priv *priv = file->private_data;
1199 const size_t bufsz = sizeof(buf);
1202 pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1203 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1205 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1206 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1207 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1208 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1209 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1212 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1215 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1216 const char __user *user_buf,
1217 size_t count, loff_t *ppos)
1219 struct iwl_priv *priv = file->private_data;
1224 memset(buf, 0, sizeof(buf));
1225 buf_size = min(count, sizeof(buf) - 1);
1226 if (copy_from_user(buf, user_buf, buf_size))
1228 if (sscanf(buf, "%d", &clear) != 1)
1231 /* make request to uCode to retrieve statistics information */
1232 mutex_lock(&priv->mutex);
1233 iwl_send_statistics_request(priv, CMD_SYNC, true);
1234 mutex_unlock(&priv->mutex);
1239 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1240 const char __user *user_buf,
1241 size_t count, loff_t *ppos)
1243 struct iwl_priv *priv = file->private_data;
1248 memset(buf, 0, sizeof(buf));
1249 buf_size = min(count, sizeof(buf) - 1);
1250 if (copy_from_user(buf, user_buf, buf_size))
1252 if (sscanf(buf, "%d", &csr) != 1)
1255 if (priv->cfg->ops->lib->dump_csr)
1256 priv->cfg->ops->lib->dump_csr(priv);
1261 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1262 char __user *user_buf,
1263 size_t count, loff_t *ppos) {
1265 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1268 const size_t bufsz = sizeof(buf);
1270 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1271 priv->event_log.ucode_trace ? "On" : "Off");
1272 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1273 priv->event_log.non_wraps_count);
1274 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1275 priv->event_log.wraps_once_count);
1276 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1277 priv->event_log.wraps_more_count);
1279 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1282 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1283 const char __user *user_buf,
1284 size_t count, loff_t *ppos)
1286 struct iwl_priv *priv = file->private_data;
1291 memset(buf, 0, sizeof(buf));
1292 buf_size = min(count, sizeof(buf) - 1);
1293 if (copy_from_user(buf, user_buf, buf_size))
1295 if (sscanf(buf, "%d", &trace) != 1)
1299 priv->event_log.ucode_trace = true;
1300 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1301 mod_timer(&priv->ucode_trace,
1302 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1304 priv->event_log.ucode_trace = false;
1305 del_timer_sync(&priv->ucode_trace);
1311 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1312 char __user *user_buf,
1313 size_t count, loff_t *ppos) {
1315 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1319 len = sprintf(buf, "0x%04X\n", le32_to_cpu(priv->active_rxon.flags));
1320 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1323 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1324 char __user *user_buf,
1325 size_t count, loff_t *ppos) {
1327 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1331 len = sprintf(buf, "0x%04X\n",
1332 le32_to_cpu(priv->active_rxon.filter_flags));
1333 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1336 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1337 char __user *user_buf,
1338 size_t count, loff_t *ppos)
1340 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1343 ssize_t ret = -EFAULT;
1345 if (priv->cfg->ops->lib->dump_fh) {
1346 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1348 ret = simple_read_from_buffer(user_buf,
1349 count, ppos, buf, pos);
1357 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1358 char __user *user_buf,
1359 size_t count, loff_t *ppos) {
1361 struct iwl_priv *priv = file->private_data;
1364 const size_t bufsz = sizeof(buf);
1366 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1367 priv->missed_beacon_threshold);
1369 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1372 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1373 const char __user *user_buf,
1374 size_t count, loff_t *ppos)
1376 struct iwl_priv *priv = file->private_data;
1381 memset(buf, 0, sizeof(buf));
1382 buf_size = min(count, sizeof(buf) - 1);
1383 if (copy_from_user(buf, user_buf, buf_size))
1385 if (sscanf(buf, "%d", &missed) != 1)
1388 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1389 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1390 priv->missed_beacon_threshold =
1391 IWL_MISSED_BEACON_THRESHOLD_DEF;
1393 priv->missed_beacon_threshold = missed;
1398 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1399 char __user *user_buf,
1400 size_t count, loff_t *ppos) {
1402 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1405 const size_t bufsz = sizeof(buf);
1407 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1408 priv->cfg->plcp_delta_threshold);
1410 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1413 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1414 const char __user *user_buf,
1415 size_t count, loff_t *ppos) {
1417 struct iwl_priv *priv = file->private_data;
1422 memset(buf, 0, sizeof(buf));
1423 buf_size = min(count, sizeof(buf) - 1);
1424 if (copy_from_user(buf, user_buf, buf_size))
1426 if (sscanf(buf, "%d", &plcp) != 1)
1428 if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1429 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1430 priv->cfg->plcp_delta_threshold =
1431 IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
1433 priv->cfg->plcp_delta_threshold = plcp;
1437 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1438 char __user *user_buf,
1439 size_t count, loff_t *ppos) {
1441 struct iwl_priv *priv = file->private_data;
1444 const size_t bufsz = sizeof(buf);
1445 struct iwl_force_reset *force_reset;
1447 for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1448 force_reset = &priv->force_reset[i];
1449 pos += scnprintf(buf + pos, bufsz - pos,
1450 "Force reset method %d\n", i);
1451 pos += scnprintf(buf + pos, bufsz - pos,
1452 "\tnumber of reset request: %d\n",
1453 force_reset->reset_request_count);
1454 pos += scnprintf(buf + pos, bufsz - pos,
1455 "\tnumber of reset request success: %d\n",
1456 force_reset->reset_success_count);
1457 pos += scnprintf(buf + pos, bufsz - pos,
1458 "\tnumber of reset request reject: %d\n",
1459 force_reset->reset_reject_count);
1460 pos += scnprintf(buf + pos, bufsz - pos,
1461 "\treset duration: %lu\n",
1462 force_reset->reset_duration);
1464 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1467 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1468 const char __user *user_buf,
1469 size_t count, loff_t *ppos) {
1471 struct iwl_priv *priv = file->private_data;
1476 memset(buf, 0, sizeof(buf));
1477 buf_size = min(count, sizeof(buf) - 1);
1478 if (copy_from_user(buf, user_buf, buf_size))
1480 if (sscanf(buf, "%d", &reset) != 1)
1485 ret = iwl_force_reset(priv, reset);
1490 return ret ? ret : count;
1493 DEBUGFS_READ_FILE_OPS(rx_statistics);
1494 DEBUGFS_READ_FILE_OPS(tx_statistics);
1495 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1496 DEBUGFS_READ_FILE_OPS(rx_queue);
1497 DEBUGFS_READ_FILE_OPS(tx_queue);
1498 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1499 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1500 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1501 DEBUGFS_READ_FILE_OPS(sensitivity);
1502 DEBUGFS_READ_FILE_OPS(chain_noise);
1503 DEBUGFS_READ_FILE_OPS(power_save_status);
1504 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1505 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1506 DEBUGFS_WRITE_FILE_OPS(csr);
1507 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1508 DEBUGFS_READ_FILE_OPS(fh_reg);
1509 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1510 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1511 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1512 DEBUGFS_READ_FILE_OPS(rxon_flags);
1513 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1516 * Create the debugfs files and directories
1519 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1521 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1522 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1524 dir_drv = debugfs_create_dir(name, phyd);
1528 priv->debugfs_dir = dir_drv;
1530 dir_data = debugfs_create_dir("data", dir_drv);
1533 dir_rf = debugfs_create_dir("rf", dir_drv);
1536 dir_debug = debugfs_create_dir("debug", dir_drv);
1540 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1541 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1542 DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1543 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1544 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1545 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1546 DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1547 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1548 DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
1549 if (!priv->cfg->broken_powersave) {
1550 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1552 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1554 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1555 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1556 DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1557 DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1558 DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1559 DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1560 DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1561 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1562 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1563 DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1564 DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1565 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1566 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1567 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1568 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1569 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1570 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1571 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1573 if (priv->cfg->sensitivity_calib_by_driver)
1574 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1575 if (priv->cfg->chain_noise_calib_by_driver)
1576 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1577 if (priv->cfg->ucode_tracing)
1578 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1579 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1580 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1581 if (priv->cfg->sensitivity_calib_by_driver)
1582 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1583 &priv->disable_sens_cal);
1584 if (priv->cfg->chain_noise_calib_by_driver)
1585 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1586 &priv->disable_chain_noise_cal);
1587 if (priv->cfg->tx_power_by_driver)
1588 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1589 &priv->disable_tx_power_cal);
1593 IWL_ERR(priv, "Can't create the debugfs directory\n");
1594 iwl_dbgfs_unregister(priv);
1597 EXPORT_SYMBOL(iwl_dbgfs_register);
1600 * Remove the debugfs files and directories
1603 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1605 if (!priv->debugfs_dir)
1608 debugfs_remove_recursive(priv->debugfs_dir);
1609 priv->debugfs_dir = NULL;
1611 EXPORT_SYMBOL(iwl_dbgfs_unregister);