1 /******************************************************************************
5 * Copyright(c) 2008 - 2011 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"
43 /* create and remove of files */
44 #define DEBUGFS_ADD_FILE(name, parent, mode) do { \
45 if (!debugfs_create_file(#name, mode, parent, priv, \
46 &iwl_dbgfs_##name##_ops)) \
50 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
51 struct dentry *__tmp; \
52 __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
54 if (IS_ERR(__tmp) || !__tmp) \
58 #define DEBUGFS_ADD_X32(name, parent, ptr) do { \
59 struct dentry *__tmp; \
60 __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
62 if (IS_ERR(__tmp) || !__tmp) \
67 #define DEBUGFS_READ_FUNC(name) \
68 static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
69 char __user *user_buf, \
70 size_t count, loff_t *ppos);
72 #define DEBUGFS_WRITE_FUNC(name) \
73 static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
74 const char __user *user_buf, \
75 size_t count, loff_t *ppos);
78 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
80 file->private_data = inode->i_private;
84 #define DEBUGFS_READ_FILE_OPS(name) \
85 DEBUGFS_READ_FUNC(name); \
86 static const struct file_operations iwl_dbgfs_##name##_ops = { \
87 .read = iwl_dbgfs_##name##_read, \
88 .open = iwl_dbgfs_open_file_generic, \
89 .llseek = generic_file_llseek, \
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, \
97 .llseek = generic_file_llseek, \
101 #define DEBUGFS_READ_WRITE_FILE_OPS(name) \
102 DEBUGFS_READ_FUNC(name); \
103 DEBUGFS_WRITE_FUNC(name); \
104 static const struct file_operations iwl_dbgfs_##name##_ops = { \
105 .write = iwl_dbgfs_##name##_write, \
106 .read = iwl_dbgfs_##name##_read, \
107 .open = iwl_dbgfs_open_file_generic, \
108 .llseek = generic_file_llseek, \
111 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
112 char __user *user_buf,
113 size_t count, loff_t *ppos) {
115 struct iwl_priv *priv = file->private_data;
121 const size_t bufsz = 100 +
122 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
123 buf = kzalloc(bufsz, GFP_KERNEL);
126 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
127 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
128 pos += scnprintf(buf + pos, bufsz - pos,
130 get_mgmt_string(cnt),
131 priv->tx_stats.mgmt[cnt]);
133 pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
134 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
135 pos += scnprintf(buf + pos, bufsz - pos,
137 get_ctrl_string(cnt),
138 priv->tx_stats.ctrl[cnt]);
140 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
141 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
142 priv->tx_stats.data_cnt);
143 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
144 priv->tx_stats.data_bytes);
145 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
150 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
151 const char __user *user_buf,
152 size_t count, loff_t *ppos)
154 struct iwl_priv *priv = file->private_data;
159 memset(buf, 0, sizeof(buf));
160 buf_size = min(count, sizeof(buf) - 1);
161 if (copy_from_user(buf, user_buf, buf_size))
163 if (sscanf(buf, "%x", &clear_flag) != 1)
165 iwl_clear_traffic_stats(priv);
170 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
171 char __user *user_buf,
172 size_t count, loff_t *ppos) {
174 struct iwl_priv *priv = file->private_data;
179 const size_t bufsz = 100 +
180 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
181 buf = kzalloc(bufsz, GFP_KERNEL);
185 pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
186 for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
187 pos += scnprintf(buf + pos, bufsz - pos,
189 get_mgmt_string(cnt),
190 priv->rx_stats.mgmt[cnt]);
192 pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
193 for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
194 pos += scnprintf(buf + pos, bufsz - pos,
196 get_ctrl_string(cnt),
197 priv->rx_stats.ctrl[cnt]);
199 pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
200 pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
201 priv->rx_stats.data_cnt);
202 pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
203 priv->rx_stats.data_bytes);
205 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
210 static ssize_t iwl_dbgfs_sram_read(struct file *file,
211 char __user *user_buf,
212 size_t count, loff_t *ppos)
218 bool device_format = false;
223 struct iwl_priv *priv = file->private_data;
226 /* default is to dump the entire data segment */
227 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
228 priv->dbgfs_sram_offset = 0x800000;
229 if (priv->ucode_type == UCODE_INIT)
230 priv->dbgfs_sram_len = priv->ucode_init_data.len;
232 priv->dbgfs_sram_len = priv->ucode_data.len;
234 len = priv->dbgfs_sram_len;
237 device_format = true;
241 bufsz = 50 + len * 4;
242 buf = kmalloc(bufsz, GFP_KERNEL);
246 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
248 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
249 priv->dbgfs_sram_offset);
251 /* adjust sram address since reads are only on even u32 boundaries */
252 offset = priv->dbgfs_sram_offset & 0x3;
253 sram = priv->dbgfs_sram_offset & ~0x3;
255 /* read the first u32 from sram */
256 val = iwl_read_targ_mem(priv, sram);
259 /* put the address at the start of every line */
261 pos += scnprintf(buf + pos, bufsz - pos,
262 "%08X: ", sram + offset);
265 pos += scnprintf(buf + pos, bufsz - pos,
266 "%02x", (val >> (8 * (3 - offset))) & 0xff);
268 pos += scnprintf(buf + pos, bufsz - pos,
269 "%02x ", (val >> (8 * offset)) & 0xff);
271 /* if all bytes processed, read the next u32 from sram */
275 val = iwl_read_targ_mem(priv, sram);
278 /* put in extra spaces and split lines for human readability */
281 pos += scnprintf(buf + pos, bufsz - pos, "\n");
282 } else if (!(i & 7)) {
283 pos += scnprintf(buf + pos, bufsz - pos, " ");
284 } else if (!(i & 3)) {
285 pos += scnprintf(buf + pos, bufsz - pos, " ");
289 pos += scnprintf(buf + pos, bufsz - pos, "\n");
291 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
296 static ssize_t iwl_dbgfs_sram_write(struct file *file,
297 const char __user *user_buf,
298 size_t count, loff_t *ppos)
300 struct iwl_priv *priv = file->private_data;
305 memset(buf, 0, sizeof(buf));
306 buf_size = min(count, sizeof(buf) - 1);
307 if (copy_from_user(buf, user_buf, buf_size))
310 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
311 priv->dbgfs_sram_offset = offset;
312 priv->dbgfs_sram_len = len;
313 } else if (sscanf(buf, "%x", &offset) == 1) {
314 priv->dbgfs_sram_offset = offset;
315 priv->dbgfs_sram_len = -4;
317 priv->dbgfs_sram_offset = 0;
318 priv->dbgfs_sram_len = 0;
324 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
325 size_t count, loff_t *ppos)
327 struct iwl_priv *priv = file->private_data;
328 struct iwl_station_entry *station;
329 int max_sta = priv->hw_params.max_stations;
333 /* Add 30 for initial string */
334 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
336 buf = kmalloc(bufsz, GFP_KERNEL);
340 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
343 for (i = 0; i < max_sta; i++) {
344 station = &priv->stations[i];
347 pos += scnprintf(buf + pos, bufsz - pos,
348 "station %d - addr: %pM, flags: %#x\n",
349 i, station->sta.sta.addr,
350 station->sta.station_flags_msk);
351 pos += scnprintf(buf + pos, bufsz - pos,
352 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
353 pos += scnprintf(buf + pos, bufsz - pos,
354 "start_idx\tbitmap\t\t\trate_n_flags\n");
356 for (j = 0; j < MAX_TID_COUNT; j++) {
357 pos += scnprintf(buf + pos, bufsz - pos,
358 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
359 j, station->tid[j].seq_number,
360 station->tid[j].agg.txq_id,
361 station->tid[j].agg.frame_count,
362 station->tid[j].tfds_in_queue,
363 station->tid[j].agg.start_idx,
364 station->tid[j].agg.bitmap,
365 station->tid[j].agg.rate_n_flags);
367 if (station->tid[j].agg.wait_for_ba)
368 pos += scnprintf(buf + pos, bufsz - pos,
370 pos += scnprintf(buf + pos, bufsz - pos, "\n");
373 pos += scnprintf(buf + pos, bufsz - pos, "\n");
376 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
381 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
382 char __user *user_buf,
387 struct iwl_priv *priv = file->private_data;
388 int pos = 0, ofs = 0, buf_size = 0;
392 size_t eeprom_len = priv->cfg->base_params->eeprom_size;
393 buf_size = 4 * eeprom_len + 256;
395 if (eeprom_len % 16) {
396 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
402 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
406 /* 4 characters for byte 0xYY */
407 buf = kzalloc(buf_size, GFP_KERNEL);
409 IWL_ERR(priv, "Can not allocate Buffer\n");
412 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
413 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
415 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
416 ? "OTP" : "EEPROM", eeprom_ver);
417 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
418 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
419 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
421 pos += strlen(buf + pos);
422 if (buf_size - pos > 0)
426 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
431 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
432 char __user *user_buf,
433 size_t count, loff_t *ppos)
435 struct iwl_priv *priv = file->private_data;
438 ssize_t ret = -ENOMEM;
440 ret = pos = iwl_dump_nic_event_log(priv, true, &buf, true);
442 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
448 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
449 const char __user *user_buf,
450 size_t count, loff_t *ppos)
452 struct iwl_priv *priv = file->private_data;
457 memset(buf, 0, sizeof(buf));
458 buf_size = min(count, sizeof(buf) - 1);
459 if (copy_from_user(buf, user_buf, buf_size))
461 if (sscanf(buf, "%d", &event_log_flag) != 1)
463 if (event_log_flag == 1)
464 iwl_dump_nic_event_log(priv, true, NULL, false);
471 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
472 size_t count, loff_t *ppos)
474 struct iwl_priv *priv = file->private_data;
475 struct ieee80211_channel *channels = NULL;
476 const struct ieee80211_supported_band *supp_band = NULL;
477 int pos = 0, i, bufsz = PAGE_SIZE;
481 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
484 buf = kzalloc(bufsz, GFP_KERNEL);
486 IWL_ERR(priv, "Can not allocate Buffer\n");
490 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
492 channels = supp_band->channels;
494 pos += scnprintf(buf + pos, bufsz - pos,
495 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
496 supp_band->n_channels);
498 for (i = 0; i < supp_band->n_channels; i++)
499 pos += scnprintf(buf + pos, bufsz - pos,
500 "%d: %ddBm: BSS%s%s, %s.\n",
501 channels[i].hw_value,
502 channels[i].max_power,
503 channels[i].flags & IEEE80211_CHAN_RADAR ?
504 " (IEEE 802.11h required)" : "",
505 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
506 || (channels[i].flags &
507 IEEE80211_CHAN_RADAR)) ? "" :
510 IEEE80211_CHAN_PASSIVE_SCAN ?
511 "passive only" : "active/passive");
513 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
515 channels = supp_band->channels;
517 pos += scnprintf(buf + pos, bufsz - pos,
518 "Displaying %d channels in 5.2GHz band (802.11a)\n",
519 supp_band->n_channels);
521 for (i = 0; i < supp_band->n_channels; i++)
522 pos += scnprintf(buf + pos, bufsz - pos,
523 "%d: %ddBm: BSS%s%s, %s.\n",
524 channels[i].hw_value,
525 channels[i].max_power,
526 channels[i].flags & IEEE80211_CHAN_RADAR ?
527 " (IEEE 802.11h required)" : "",
528 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
529 || (channels[i].flags &
530 IEEE80211_CHAN_RADAR)) ? "" :
533 IEEE80211_CHAN_PASSIVE_SCAN ?
534 "passive only" : "active/passive");
536 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
541 static ssize_t iwl_dbgfs_status_read(struct file *file,
542 char __user *user_buf,
543 size_t count, loff_t *ppos) {
545 struct iwl_priv *priv = file->private_data;
548 const size_t bufsz = sizeof(buf);
550 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
551 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
552 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
553 test_bit(STATUS_INT_ENABLED, &priv->status));
554 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
555 test_bit(STATUS_RF_KILL_HW, &priv->status));
556 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
557 test_bit(STATUS_CT_KILL, &priv->status));
558 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
559 test_bit(STATUS_INIT, &priv->status));
560 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
561 test_bit(STATUS_ALIVE, &priv->status));
562 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
563 test_bit(STATUS_READY, &priv->status));
564 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
565 test_bit(STATUS_TEMPERATURE, &priv->status));
566 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
567 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
568 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
569 test_bit(STATUS_EXIT_PENDING, &priv->status));
570 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
571 test_bit(STATUS_STATISTICS, &priv->status));
572 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
573 test_bit(STATUS_SCANNING, &priv->status));
574 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
575 test_bit(STATUS_SCAN_ABORTING, &priv->status));
576 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
577 test_bit(STATUS_SCAN_HW, &priv->status));
578 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
579 test_bit(STATUS_POWER_PMI, &priv->status));
580 pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
581 test_bit(STATUS_FW_ERROR, &priv->status));
582 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
585 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
586 char __user *user_buf,
587 size_t count, loff_t *ppos) {
589 struct iwl_priv *priv = file->private_data;
593 int bufsz = 24 * 64; /* 24 items * 64 char per item */
596 buf = kzalloc(bufsz, GFP_KERNEL);
598 IWL_ERR(priv, "Can not allocate Buffer\n");
602 pos += scnprintf(buf + pos, bufsz - pos,
603 "Interrupt Statistics Report:\n");
605 pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
607 pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
609 if (priv->isr_stats.sw || priv->isr_stats.hw) {
610 pos += scnprintf(buf + pos, bufsz - pos,
611 "\tLast Restarting Code: 0x%X\n",
612 priv->isr_stats.err_code);
614 #ifdef CONFIG_IWLWIFI_DEBUG
615 pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
616 priv->isr_stats.sch);
617 pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
618 priv->isr_stats.alive);
620 pos += scnprintf(buf + pos, bufsz - pos,
621 "HW RF KILL switch toggled:\t %u\n",
622 priv->isr_stats.rfkill);
624 pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
625 priv->isr_stats.ctkill);
627 pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
628 priv->isr_stats.wakeup);
630 pos += scnprintf(buf + pos, bufsz - pos,
631 "Rx command responses:\t\t %u\n",
633 for (cnt = 0; cnt < REPLY_MAX; cnt++) {
634 if (priv->isr_stats.rx_handlers[cnt] > 0)
635 pos += scnprintf(buf + pos, bufsz - pos,
636 "\tRx handler[%36s]:\t\t %u\n",
638 priv->isr_stats.rx_handlers[cnt]);
641 pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
644 pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
645 priv->isr_stats.unhandled);
647 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
652 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
653 const char __user *user_buf,
654 size_t count, loff_t *ppos)
656 struct iwl_priv *priv = file->private_data;
661 memset(buf, 0, sizeof(buf));
662 buf_size = min(count, sizeof(buf) - 1);
663 if (copy_from_user(buf, user_buf, buf_size))
665 if (sscanf(buf, "%x", &reset_flag) != 1)
668 iwl_clear_isr_stats(priv);
673 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
674 size_t count, loff_t *ppos)
676 struct iwl_priv *priv = file->private_data;
677 struct iwl_rxon_context *ctx;
679 char buf[256 * NUM_IWL_RXON_CTX];
680 const size_t bufsz = sizeof(buf);
682 for_each_context(priv, ctx) {
683 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
685 for (i = 0; i < AC_NUM; i++) {
686 pos += scnprintf(buf + pos, bufsz - pos,
687 "\tcw_min\tcw_max\taifsn\ttxop\n");
688 pos += scnprintf(buf + pos, bufsz - pos,
689 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
690 ctx->qos_data.def_qos_parm.ac[i].cw_min,
691 ctx->qos_data.def_qos_parm.ac[i].cw_max,
692 ctx->qos_data.def_qos_parm.ac[i].aifsn,
693 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
695 pos += scnprintf(buf + pos, bufsz - pos, "\n");
697 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
700 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
701 char __user *user_buf,
702 size_t count, loff_t *ppos)
704 struct iwl_priv *priv = file->private_data;
705 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
706 struct iwl_tt_restriction *restriction;
709 const size_t bufsz = sizeof(buf);
711 pos += scnprintf(buf + pos, bufsz - pos,
712 "Thermal Throttling Mode: %s\n",
713 tt->advanced_tt ? "Advance" : "Legacy");
714 pos += scnprintf(buf + pos, bufsz - pos,
715 "Thermal Throttling State: %d\n",
717 if (tt->advanced_tt) {
718 restriction = tt->restriction + tt->state;
719 pos += scnprintf(buf + pos, bufsz - pos,
721 restriction->tx_stream);
722 pos += scnprintf(buf + pos, bufsz - pos,
724 restriction->rx_stream);
725 pos += scnprintf(buf + pos, bufsz - pos,
729 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
732 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
733 const char __user *user_buf,
734 size_t count, loff_t *ppos)
736 struct iwl_priv *priv = file->private_data;
741 memset(buf, 0, sizeof(buf));
742 buf_size = min(count, sizeof(buf) - 1);
743 if (copy_from_user(buf, user_buf, buf_size))
745 if (sscanf(buf, "%d", &ht40) != 1)
747 if (!iwl_is_any_associated(priv))
748 priv->disable_ht40 = ht40 ? true : false;
750 IWL_ERR(priv, "Sta associated with AP - "
751 "Change to 40MHz channel support is not allowed\n");
758 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
759 char __user *user_buf,
760 size_t count, loff_t *ppos)
762 struct iwl_priv *priv = file->private_data;
765 const size_t bufsz = sizeof(buf);
767 pos += scnprintf(buf + pos, bufsz - pos,
768 "11n 40MHz Mode: %s\n",
769 priv->disable_ht40 ? "Disabled" : "Enabled");
770 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
773 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
774 const char __user *user_buf,
775 size_t count, loff_t *ppos)
777 struct iwl_priv *priv = file->private_data;
782 memset(buf, 0, sizeof(buf));
783 buf_size = min(count, sizeof(buf) - 1);
784 if (copy_from_user(buf, user_buf, buf_size))
787 if (sscanf(buf, "%d", &value) != 1)
791 * Our users expect 0 to be "CAM", but 0 isn't actually
792 * valid here. However, let's not confuse them and present
793 * IWL_POWER_INDEX_1 as "1", not "0".
800 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
803 if (!iwl_is_ready_rf(priv))
806 priv->power_data.debug_sleep_level_override = value;
808 mutex_lock(&priv->mutex);
809 iwl_power_update_mode(priv, true);
810 mutex_unlock(&priv->mutex);
815 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
816 char __user *user_buf,
817 size_t count, loff_t *ppos)
819 struct iwl_priv *priv = file->private_data;
822 const size_t bufsz = sizeof(buf);
824 /* see the write function */
825 value = priv->power_data.debug_sleep_level_override;
829 pos = scnprintf(buf, bufsz, "%d\n", value);
830 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
833 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
834 char __user *user_buf,
835 size_t count, loff_t *ppos)
837 struct iwl_priv *priv = file->private_data;
840 const size_t bufsz = sizeof(buf);
841 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
843 pos += scnprintf(buf + pos, bufsz - pos,
844 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
845 pos += scnprintf(buf + pos, bufsz - pos,
846 "RX/TX timeout: %d/%d usec\n",
847 le32_to_cpu(cmd->rx_data_timeout),
848 le32_to_cpu(cmd->tx_data_timeout));
849 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
850 pos += scnprintf(buf + pos, bufsz - pos,
851 "sleep_interval[%d]: %d\n", i,
852 le32_to_cpu(cmd->sleep_interval[i]));
854 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
857 DEBUGFS_READ_WRITE_FILE_OPS(sram);
858 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
859 DEBUGFS_READ_FILE_OPS(nvm);
860 DEBUGFS_READ_FILE_OPS(stations);
861 DEBUGFS_READ_FILE_OPS(channels);
862 DEBUGFS_READ_FILE_OPS(status);
863 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
864 DEBUGFS_READ_FILE_OPS(qos);
865 DEBUGFS_READ_FILE_OPS(thermal_throttling);
866 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
867 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
868 DEBUGFS_READ_FILE_OPS(current_sleep_command);
870 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
871 char __user *user_buf,
872 size_t count, loff_t *ppos)
874 struct iwl_priv *priv = file->private_data;
875 int pos = 0, ofs = 0;
877 struct iwl_tx_queue *txq;
879 struct iwl_rx_queue *rxq = &priv->rxq;
881 int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
882 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
887 IWL_ERR(priv, "txq not ready\n");
890 buf = kzalloc(bufsz, GFP_KERNEL);
892 IWL_ERR(priv, "Can not allocate buffer\n");
895 pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
896 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
897 txq = &priv->txq[cnt];
899 pos += scnprintf(buf + pos, bufsz - pos,
900 "q[%d]: read_ptr: %u, write_ptr: %u\n",
901 cnt, q->read_ptr, q->write_ptr);
903 if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
904 ptr = priv->tx_traffic;
905 pos += scnprintf(buf + pos, bufsz - pos,
906 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
907 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
908 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
909 entry++, ofs += 16) {
910 pos += scnprintf(buf + pos, bufsz - pos,
912 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
913 buf + pos, bufsz - pos, 0);
914 pos += strlen(buf + pos);
921 pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
922 pos += scnprintf(buf + pos, bufsz - pos,
923 "read: %u, write: %u\n",
924 rxq->read, rxq->write);
926 if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
927 ptr = priv->rx_traffic;
928 pos += scnprintf(buf + pos, bufsz - pos,
929 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
930 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
931 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
932 entry++, ofs += 16) {
933 pos += scnprintf(buf + pos, bufsz - pos,
935 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
936 buf + pos, bufsz - pos, 0);
937 pos += strlen(buf + pos);
944 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
949 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
950 const char __user *user_buf,
951 size_t count, loff_t *ppos)
953 struct iwl_priv *priv = file->private_data;
958 memset(buf, 0, sizeof(buf));
959 buf_size = min(count, sizeof(buf) - 1);
960 if (copy_from_user(buf, user_buf, buf_size))
962 if (sscanf(buf, "%d", &traffic_log) != 1)
964 if (traffic_log == 0)
965 iwl_reset_traffic_log(priv);
970 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
971 char __user *user_buf,
972 size_t count, loff_t *ppos) {
974 struct iwl_priv *priv = file->private_data;
975 struct iwl_tx_queue *txq;
981 const size_t bufsz = sizeof(char) * 64 *
982 priv->cfg->base_params->num_of_queues;
985 IWL_ERR(priv, "txq not ready\n");
988 buf = kzalloc(bufsz, GFP_KERNEL);
992 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
993 txq = &priv->txq[cnt];
995 pos += scnprintf(buf + pos, bufsz - pos,
996 "hwq %.2d: read=%u write=%u stop=%d"
997 " swq_id=%#.2x (ac %d/hwq %d)\n",
998 cnt, q->read_ptr, q->write_ptr,
999 !!test_bit(cnt, priv->queue_stopped),
1000 txq->swq_id, txq->swq_id & 3,
1001 (txq->swq_id >> 2) & 0x1f);
1004 /* for the ACs, display the stop count too */
1005 pos += scnprintf(buf + pos, bufsz - pos,
1006 " stop-count: %d\n",
1007 atomic_read(&priv->queue_stop_count[cnt]));
1009 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1014 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1015 char __user *user_buf,
1016 size_t count, loff_t *ppos) {
1018 struct iwl_priv *priv = file->private_data;
1019 struct iwl_rx_queue *rxq = &priv->rxq;
1022 const size_t bufsz = sizeof(buf);
1024 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1026 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1028 pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1031 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1032 le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
1034 pos += scnprintf(buf + pos, bufsz - pos,
1035 "closed_rb_num: Not Allocated\n");
1037 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1040 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1041 char __user *user_buf,
1042 size_t count, loff_t *ppos)
1044 struct iwl_priv *priv = file->private_data;
1045 return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1046 user_buf, count, ppos);
1049 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1050 char __user *user_buf,
1051 size_t count, loff_t *ppos)
1053 struct iwl_priv *priv = file->private_data;
1054 return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1055 user_buf, count, ppos);
1058 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1059 char __user *user_buf,
1060 size_t count, loff_t *ppos)
1062 struct iwl_priv *priv = file->private_data;
1063 return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1064 user_buf, count, ppos);
1067 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1068 char __user *user_buf,
1069 size_t count, loff_t *ppos) {
1071 struct iwl_priv *priv = file->private_data;
1075 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1077 struct iwl_sensitivity_data *data;
1079 data = &priv->sensitivity_data;
1080 buf = kzalloc(bufsz, GFP_KERNEL);
1082 IWL_ERR(priv, "Can not allocate Buffer\n");
1086 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1087 data->auto_corr_ofdm);
1088 pos += scnprintf(buf + pos, bufsz - pos,
1089 "auto_corr_ofdm_mrc:\t\t %u\n",
1090 data->auto_corr_ofdm_mrc);
1091 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1092 data->auto_corr_ofdm_x1);
1093 pos += scnprintf(buf + pos, bufsz - pos,
1094 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1095 data->auto_corr_ofdm_mrc_x1);
1096 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1097 data->auto_corr_cck);
1098 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1099 data->auto_corr_cck_mrc);
1100 pos += scnprintf(buf + pos, bufsz - pos,
1101 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1102 data->last_bad_plcp_cnt_ofdm);
1103 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1104 data->last_fa_cnt_ofdm);
1105 pos += scnprintf(buf + pos, bufsz - pos,
1106 "last_bad_plcp_cnt_cck:\t\t %u\n",
1107 data->last_bad_plcp_cnt_cck);
1108 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1109 data->last_fa_cnt_cck);
1110 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1111 data->nrg_curr_state);
1112 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1113 data->nrg_prev_state);
1114 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1115 for (cnt = 0; cnt < 10; cnt++) {
1116 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1117 data->nrg_value[cnt]);
1119 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1120 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1121 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1122 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1123 data->nrg_silence_rssi[cnt]);
1125 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1126 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1127 data->nrg_silence_ref);
1128 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1129 data->nrg_energy_idx);
1130 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1131 data->nrg_silence_idx);
1132 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1134 pos += scnprintf(buf + pos, bufsz - pos,
1135 "nrg_auto_corr_silence_diff:\t %u\n",
1136 data->nrg_auto_corr_silence_diff);
1137 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1138 data->num_in_cck_no_fa);
1139 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1142 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1148 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1149 char __user *user_buf,
1150 size_t count, loff_t *ppos) {
1152 struct iwl_priv *priv = file->private_data;
1156 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1158 struct iwl_chain_noise_data *data;
1160 data = &priv->chain_noise_data;
1161 buf = kzalloc(bufsz, GFP_KERNEL);
1163 IWL_ERR(priv, "Can not allocate Buffer\n");
1167 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1168 data->active_chains);
1169 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1170 data->chain_noise_a);
1171 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1172 data->chain_noise_b);
1173 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1174 data->chain_noise_c);
1175 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1176 data->chain_signal_a);
1177 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1178 data->chain_signal_b);
1179 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1180 data->chain_signal_c);
1181 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1182 data->beacon_count);
1184 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1185 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1186 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1187 data->disconn_array[cnt]);
1189 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1190 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1191 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1192 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1193 data->delta_gain_code[cnt]);
1195 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1196 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1198 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1201 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1206 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1207 char __user *user_buf,
1208 size_t count, loff_t *ppos)
1210 struct iwl_priv *priv = file->private_data;
1213 const size_t bufsz = sizeof(buf);
1216 pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1217 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1219 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1220 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1221 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1222 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1223 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1226 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1229 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1230 const char __user *user_buf,
1231 size_t count, loff_t *ppos)
1233 struct iwl_priv *priv = file->private_data;
1238 memset(buf, 0, sizeof(buf));
1239 buf_size = min(count, sizeof(buf) - 1);
1240 if (copy_from_user(buf, user_buf, buf_size))
1242 if (sscanf(buf, "%d", &clear) != 1)
1245 /* make request to uCode to retrieve statistics information */
1246 mutex_lock(&priv->mutex);
1247 iwl_send_statistics_request(priv, CMD_SYNC, true);
1248 mutex_unlock(&priv->mutex);
1253 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1254 const char __user *user_buf,
1255 size_t count, loff_t *ppos)
1257 struct iwl_priv *priv = file->private_data;
1262 memset(buf, 0, sizeof(buf));
1263 buf_size = min(count, sizeof(buf) - 1);
1264 if (copy_from_user(buf, user_buf, buf_size))
1266 if (sscanf(buf, "%d", &csr) != 1)
1274 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1275 char __user *user_buf,
1276 size_t count, loff_t *ppos) {
1278 struct iwl_priv *priv = file->private_data;
1281 const size_t bufsz = sizeof(buf);
1283 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1284 priv->event_log.ucode_trace ? "On" : "Off");
1285 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1286 priv->event_log.non_wraps_count);
1287 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1288 priv->event_log.wraps_once_count);
1289 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1290 priv->event_log.wraps_more_count);
1292 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1295 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1296 const char __user *user_buf,
1297 size_t count, loff_t *ppos)
1299 struct iwl_priv *priv = file->private_data;
1304 memset(buf, 0, sizeof(buf));
1305 buf_size = min(count, sizeof(buf) - 1);
1306 if (copy_from_user(buf, user_buf, buf_size))
1308 if (sscanf(buf, "%d", &trace) != 1)
1312 priv->event_log.ucode_trace = true;
1313 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1314 mod_timer(&priv->ucode_trace,
1315 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1317 priv->event_log.ucode_trace = false;
1318 del_timer_sync(&priv->ucode_trace);
1324 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1325 char __user *user_buf,
1326 size_t count, loff_t *ppos) {
1328 struct iwl_priv *priv = file->private_data;
1332 len = sprintf(buf, "0x%04X\n",
1333 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1334 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1337 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1338 char __user *user_buf,
1339 size_t count, loff_t *ppos) {
1341 struct iwl_priv *priv = file->private_data;
1345 len = sprintf(buf, "0x%04X\n",
1346 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1347 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1350 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1351 char __user *user_buf,
1352 size_t count, loff_t *ppos)
1354 struct iwl_priv *priv = file->private_data;
1357 ssize_t ret = -EFAULT;
1359 ret = pos = iwl_dump_fh(priv, &buf, true);
1361 ret = simple_read_from_buffer(user_buf,
1362 count, ppos, buf, pos);
1369 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1370 char __user *user_buf,
1371 size_t count, loff_t *ppos) {
1373 struct iwl_priv *priv = file->private_data;
1376 const size_t bufsz = sizeof(buf);
1378 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1379 priv->missed_beacon_threshold);
1381 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1384 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1385 const char __user *user_buf,
1386 size_t count, loff_t *ppos)
1388 struct iwl_priv *priv = file->private_data;
1393 memset(buf, 0, sizeof(buf));
1394 buf_size = min(count, sizeof(buf) - 1);
1395 if (copy_from_user(buf, user_buf, buf_size))
1397 if (sscanf(buf, "%d", &missed) != 1)
1400 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1401 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1402 priv->missed_beacon_threshold =
1403 IWL_MISSED_BEACON_THRESHOLD_DEF;
1405 priv->missed_beacon_threshold = missed;
1410 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1411 char __user *user_buf,
1412 size_t count, loff_t *ppos) {
1414 struct iwl_priv *priv = file->private_data;
1417 const size_t bufsz = sizeof(buf);
1419 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1420 priv->cfg->base_params->plcp_delta_threshold);
1422 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1425 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1426 const char __user *user_buf,
1427 size_t count, loff_t *ppos) {
1429 struct iwl_priv *priv = file->private_data;
1434 memset(buf, 0, sizeof(buf));
1435 buf_size = min(count, sizeof(buf) - 1);
1436 if (copy_from_user(buf, user_buf, buf_size))
1438 if (sscanf(buf, "%d", &plcp) != 1)
1440 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1441 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1442 priv->cfg->base_params->plcp_delta_threshold =
1443 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1445 priv->cfg->base_params->plcp_delta_threshold = plcp;
1449 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1450 char __user *user_buf,
1451 size_t count, loff_t *ppos) {
1453 struct iwl_priv *priv = file->private_data;
1456 const size_t bufsz = sizeof(buf);
1457 struct iwl_force_reset *force_reset;
1459 for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1460 force_reset = &priv->force_reset[i];
1461 pos += scnprintf(buf + pos, bufsz - pos,
1462 "Force reset method %d\n", i);
1463 pos += scnprintf(buf + pos, bufsz - pos,
1464 "\tnumber of reset request: %d\n",
1465 force_reset->reset_request_count);
1466 pos += scnprintf(buf + pos, bufsz - pos,
1467 "\tnumber of reset request success: %d\n",
1468 force_reset->reset_success_count);
1469 pos += scnprintf(buf + pos, bufsz - pos,
1470 "\tnumber of reset request reject: %d\n",
1471 force_reset->reset_reject_count);
1472 pos += scnprintf(buf + pos, bufsz - pos,
1473 "\treset duration: %lu\n",
1474 force_reset->reset_duration);
1476 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1479 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1480 const char __user *user_buf,
1481 size_t count, loff_t *ppos) {
1483 struct iwl_priv *priv = file->private_data;
1488 memset(buf, 0, sizeof(buf));
1489 buf_size = min(count, sizeof(buf) - 1);
1490 if (copy_from_user(buf, user_buf, buf_size))
1492 if (sscanf(buf, "%d", &reset) != 1)
1497 ret = iwl_force_reset(priv, reset, true);
1502 return ret ? ret : count;
1505 static ssize_t iwl_dbgfs_txfifo_flush_write(struct file *file,
1506 const char __user *user_buf,
1507 size_t count, loff_t *ppos) {
1509 struct iwl_priv *priv = file->private_data;
1514 memset(buf, 0, sizeof(buf));
1515 buf_size = min(count, sizeof(buf) - 1);
1516 if (copy_from_user(buf, user_buf, buf_size))
1518 if (sscanf(buf, "%d", &flush) != 1)
1521 if (iwl_is_rfkill(priv))
1524 priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1529 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1530 char __user *user_buf,
1531 size_t count, loff_t *ppos)
1533 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1535 return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1536 user_buf, count, ppos);
1539 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
1540 const char __user *user_buf,
1541 size_t count, loff_t *ppos) {
1543 struct iwl_priv *priv = file->private_data;
1548 memset(buf, 0, sizeof(buf));
1549 buf_size = min(count, sizeof(buf) - 1);
1550 if (copy_from_user(buf, user_buf, buf_size))
1552 if (sscanf(buf, "%d", &timeout) != 1)
1554 if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
1555 timeout = IWL_DEF_WD_TIMEOUT;
1557 priv->cfg->base_params->wd_timeout = timeout;
1558 iwl_setup_watchdog(priv);
1562 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1563 char __user *user_buf,
1564 size_t count, loff_t *ppos) {
1566 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1569 const size_t bufsz = sizeof(buf);
1571 if (!priv->bt_enable_flag) {
1572 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
1573 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1575 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
1576 priv->bt_enable_flag);
1577 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1578 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1579 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1580 "last traffic notif: %d\n",
1581 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
1582 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1583 "kill_ack_mask: %x, kill_cts_mask: %x\n",
1584 priv->bt_ch_announce, priv->kill_ack_mask,
1585 priv->kill_cts_mask);
1587 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1588 switch (priv->bt_traffic_load) {
1589 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1590 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1592 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1593 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1595 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1596 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1598 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1600 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1604 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1607 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
1608 char __user *user_buf,
1609 size_t count, loff_t *ppos)
1611 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1615 const size_t bufsz = sizeof(buf);
1617 if (priv->cfg->ht_params)
1618 pos += scnprintf(buf + pos, bufsz - pos,
1619 "use %s for aggregation\n",
1620 (priv->cfg->ht_params->use_rts_for_aggregation) ?
1621 "rts/cts" : "cts-to-self");
1623 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
1625 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1628 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1629 const char __user *user_buf,
1630 size_t count, loff_t *ppos) {
1632 struct iwl_priv *priv = file->private_data;
1637 if (!priv->cfg->ht_params)
1640 memset(buf, 0, sizeof(buf));
1641 buf_size = min(count, sizeof(buf) - 1);
1642 if (copy_from_user(buf, user_buf, buf_size))
1644 if (sscanf(buf, "%d", &rts) != 1)
1647 priv->cfg->ht_params->use_rts_for_aggregation = true;
1649 priv->cfg->ht_params->use_rts_for_aggregation = false;
1653 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1654 char __user *user_buf,
1655 size_t count, loff_t *ppos)
1657 struct iwl_priv *priv = file->private_data;
1659 if (priv->cfg->ops->lib->debugfs_ops.reply_tx_error)
1660 return priv->cfg->ops->lib->debugfs_ops.reply_tx_error(
1661 file, user_buf, count, ppos);
1665 DEBUGFS_READ_FILE_OPS(rx_statistics);
1666 DEBUGFS_READ_FILE_OPS(tx_statistics);
1667 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1668 DEBUGFS_READ_FILE_OPS(rx_queue);
1669 DEBUGFS_READ_FILE_OPS(tx_queue);
1670 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1671 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1672 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1673 DEBUGFS_READ_FILE_OPS(sensitivity);
1674 DEBUGFS_READ_FILE_OPS(chain_noise);
1675 DEBUGFS_READ_FILE_OPS(power_save_status);
1676 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1677 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1678 DEBUGFS_WRITE_FILE_OPS(csr);
1679 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1680 DEBUGFS_READ_FILE_OPS(fh_reg);
1681 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1682 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1683 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1684 DEBUGFS_READ_FILE_OPS(rxon_flags);
1685 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1686 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1687 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1688 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
1689 DEBUGFS_READ_FILE_OPS(bt_traffic);
1690 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1691 DEBUGFS_READ_FILE_OPS(reply_tx_error);
1694 * Create the debugfs files and directories
1697 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1699 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1700 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1702 dir_drv = debugfs_create_dir(name, phyd);
1706 priv->debugfs_dir = dir_drv;
1708 dir_data = debugfs_create_dir("data", dir_drv);
1711 dir_rf = debugfs_create_dir("rf", dir_drv);
1714 dir_debug = debugfs_create_dir("debug", dir_drv);
1718 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1719 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1720 DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1721 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1722 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1723 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1724 DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1725 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1726 DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
1727 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1728 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1729 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1730 DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1731 DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1732 DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1733 DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1734 DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1735 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1736 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1737 DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1738 DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1739 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1740 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1741 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1742 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1743 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1744 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1745 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1746 if (priv->cfg->ops->lib->dev_txfifo_flush)
1747 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1748 DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1750 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1751 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1752 if (priv->cfg->base_params->ucode_tracing)
1753 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1754 if (iwl_bt_statistics(priv))
1755 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1756 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
1757 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1758 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1759 DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
1760 if (iwl_advanced_bt_coexist(priv))
1761 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1762 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1763 &priv->disable_sens_cal);
1764 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1765 &priv->disable_chain_noise_cal);
1769 IWL_ERR(priv, "Can't create the debugfs directory\n");
1770 iwl_dbgfs_unregister(priv);
1775 * Remove the debugfs files and directories
1778 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1780 if (!priv->debugfs_dir)
1783 debugfs_remove_recursive(priv->debugfs_dir);
1784 priv->debugfs_dir = NULL;