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"
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 #define BYTE1_MASK 0x000000ff;
211 #define BYTE2_MASK 0x0000ffff;
212 #define BYTE3_MASK 0x00ffffff;
213 static ssize_t iwl_dbgfs_sram_read(struct file *file,
214 char __user *user_buf,
215 size_t count, loff_t *ppos)
222 struct iwl_priv *priv = file->private_data;
225 /* default is to dump the entire data segment */
226 if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
227 priv->dbgfs_sram_offset = 0x800000;
228 if (priv->ucode_type == UCODE_INIT)
229 priv->dbgfs_sram_len = priv->ucode_init_data.len;
231 priv->dbgfs_sram_len = priv->ucode_data.len;
233 bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10;
234 buf = kmalloc(bufsz, GFP_KERNEL);
237 pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
238 priv->dbgfs_sram_len);
239 pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
240 priv->dbgfs_sram_offset);
241 for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
242 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
243 priv->dbgfs_sram_len - i);
258 pos += scnprintf(buf + pos, bufsz - pos, "\n");
259 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
261 pos += scnprintf(buf + pos, bufsz - pos, "\n");
263 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
268 static ssize_t iwl_dbgfs_sram_write(struct file *file,
269 const char __user *user_buf,
270 size_t count, loff_t *ppos)
272 struct iwl_priv *priv = file->private_data;
277 memset(buf, 0, sizeof(buf));
278 buf_size = min(count, sizeof(buf) - 1);
279 if (copy_from_user(buf, user_buf, buf_size))
282 if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
283 priv->dbgfs_sram_offset = offset;
284 priv->dbgfs_sram_len = len;
286 priv->dbgfs_sram_offset = 0;
287 priv->dbgfs_sram_len = 0;
293 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
294 size_t count, loff_t *ppos)
296 struct iwl_priv *priv = file->private_data;
297 struct iwl_station_entry *station;
298 int max_sta = priv->hw_params.max_stations;
302 /* Add 30 for initial string */
303 const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
305 buf = kmalloc(bufsz, GFP_KERNEL);
309 pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
312 for (i = 0; i < max_sta; i++) {
313 station = &priv->stations[i];
316 pos += scnprintf(buf + pos, bufsz - pos,
317 "station %d - addr: %pM, flags: %#x\n",
318 i, station->sta.sta.addr,
319 station->sta.station_flags_msk);
320 pos += scnprintf(buf + pos, bufsz - pos,
321 "TID\tseq_num\ttxq_id\tframes\ttfds\t");
322 pos += scnprintf(buf + pos, bufsz - pos,
323 "start_idx\tbitmap\t\t\trate_n_flags\n");
325 for (j = 0; j < MAX_TID_COUNT; j++) {
326 pos += scnprintf(buf + pos, bufsz - pos,
327 "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
328 j, station->tid[j].seq_number,
329 station->tid[j].agg.txq_id,
330 station->tid[j].agg.frame_count,
331 station->tid[j].tfds_in_queue,
332 station->tid[j].agg.start_idx,
333 station->tid[j].agg.bitmap,
334 station->tid[j].agg.rate_n_flags);
336 if (station->tid[j].agg.wait_for_ba)
337 pos += scnprintf(buf + pos, bufsz - pos,
339 pos += scnprintf(buf + pos, bufsz - pos, "\n");
342 pos += scnprintf(buf + pos, bufsz - pos, "\n");
345 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
350 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
351 char __user *user_buf,
356 struct iwl_priv *priv = file->private_data;
357 int pos = 0, ofs = 0, buf_size = 0;
361 size_t eeprom_len = priv->cfg->base_params->eeprom_size;
362 buf_size = 4 * eeprom_len + 256;
364 if (eeprom_len % 16) {
365 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
371 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
375 /* 4 characters for byte 0xYY */
376 buf = kzalloc(buf_size, GFP_KERNEL);
378 IWL_ERR(priv, "Can not allocate Buffer\n");
381 eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
382 pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
384 (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
385 ? "OTP" : "EEPROM", eeprom_ver);
386 for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
387 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
388 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
390 pos += strlen(buf + pos);
391 if (buf_size - pos > 0)
395 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
400 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
401 char __user *user_buf,
402 size_t count, loff_t *ppos)
404 struct iwl_priv *priv = file->private_data;
407 ssize_t ret = -ENOMEM;
409 ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
410 priv, true, &buf, true);
412 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
418 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
419 const char __user *user_buf,
420 size_t count, loff_t *ppos)
422 struct iwl_priv *priv = file->private_data;
427 memset(buf, 0, sizeof(buf));
428 buf_size = min(count, sizeof(buf) - 1);
429 if (copy_from_user(buf, user_buf, buf_size))
431 if (sscanf(buf, "%d", &event_log_flag) != 1)
433 if (event_log_flag == 1)
434 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
442 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
443 size_t count, loff_t *ppos)
445 struct iwl_priv *priv = file->private_data;
446 struct ieee80211_channel *channels = NULL;
447 const struct ieee80211_supported_band *supp_band = NULL;
448 int pos = 0, i, bufsz = PAGE_SIZE;
452 if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
455 buf = kzalloc(bufsz, GFP_KERNEL);
457 IWL_ERR(priv, "Can not allocate Buffer\n");
461 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
463 channels = supp_band->channels;
465 pos += scnprintf(buf + pos, bufsz - pos,
466 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
467 supp_band->n_channels);
469 for (i = 0; i < supp_band->n_channels; i++)
470 pos += scnprintf(buf + pos, bufsz - pos,
471 "%d: %ddBm: BSS%s%s, %s.\n",
472 channels[i].hw_value,
473 channels[i].max_power,
474 channels[i].flags & IEEE80211_CHAN_RADAR ?
475 " (IEEE 802.11h required)" : "",
476 ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
477 || (channels[i].flags &
478 IEEE80211_CHAN_RADAR)) ? "" :
481 IEEE80211_CHAN_PASSIVE_SCAN ?
482 "passive only" : "active/passive");
484 supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
486 channels = supp_band->channels;
488 pos += scnprintf(buf + pos, bufsz - pos,
489 "Displaying %d channels in 5.2GHz band (802.11a)\n",
490 supp_band->n_channels);
492 for (i = 0; i < supp_band->n_channels; i++)
493 pos += scnprintf(buf + pos, bufsz - pos,
494 "%d: %ddBm: BSS%s%s, %s.\n",
495 channels[i].hw_value,
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 || priv->isr_stats.hw) {
581 pos += scnprintf(buf + pos, bufsz - pos,
582 "\tLast Restarting Code: 0x%X\n",
583 priv->isr_stats.err_code);
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;
648 struct iwl_rxon_context *ctx;
650 char buf[256 * NUM_IWL_RXON_CTX];
651 const size_t bufsz = sizeof(buf);
653 for_each_context(priv, ctx) {
654 pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
656 for (i = 0; i < AC_NUM; i++) {
657 pos += scnprintf(buf + pos, bufsz - pos,
658 "\tcw_min\tcw_max\taifsn\ttxop\n");
659 pos += scnprintf(buf + pos, bufsz - pos,
660 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
661 ctx->qos_data.def_qos_parm.ac[i].cw_min,
662 ctx->qos_data.def_qos_parm.ac[i].cw_max,
663 ctx->qos_data.def_qos_parm.ac[i].aifsn,
664 ctx->qos_data.def_qos_parm.ac[i].edca_txop);
666 pos += scnprintf(buf + pos, bufsz - pos, "\n");
668 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
671 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
672 char __user *user_buf,
673 size_t count, loff_t *ppos)
675 struct iwl_priv *priv = file->private_data;
676 struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
677 struct iwl_tt_restriction *restriction;
680 const size_t bufsz = sizeof(buf);
682 pos += scnprintf(buf + pos, bufsz - pos,
683 "Thermal Throttling Mode: %s\n",
684 tt->advanced_tt ? "Advance" : "Legacy");
685 pos += scnprintf(buf + pos, bufsz - pos,
686 "Thermal Throttling State: %d\n",
688 if (tt->advanced_tt) {
689 restriction = tt->restriction + tt->state;
690 pos += scnprintf(buf + pos, bufsz - pos,
692 restriction->tx_stream);
693 pos += scnprintf(buf + pos, bufsz - pos,
695 restriction->rx_stream);
696 pos += scnprintf(buf + pos, bufsz - pos,
700 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
703 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
704 const char __user *user_buf,
705 size_t count, loff_t *ppos)
707 struct iwl_priv *priv = file->private_data;
712 memset(buf, 0, sizeof(buf));
713 buf_size = min(count, sizeof(buf) - 1);
714 if (copy_from_user(buf, user_buf, buf_size))
716 if (sscanf(buf, "%d", &ht40) != 1)
718 if (!iwl_is_any_associated(priv))
719 priv->disable_ht40 = ht40 ? true : false;
721 IWL_ERR(priv, "Sta associated with AP - "
722 "Change to 40MHz channel support is not allowed\n");
729 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
730 char __user *user_buf,
731 size_t count, loff_t *ppos)
733 struct iwl_priv *priv = file->private_data;
736 const size_t bufsz = sizeof(buf);
738 pos += scnprintf(buf + pos, bufsz - pos,
739 "11n 40MHz Mode: %s\n",
740 priv->disable_ht40 ? "Disabled" : "Enabled");
741 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
744 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
745 const char __user *user_buf,
746 size_t count, loff_t *ppos)
748 struct iwl_priv *priv = file->private_data;
753 memset(buf, 0, sizeof(buf));
754 buf_size = min(count, sizeof(buf) - 1);
755 if (copy_from_user(buf, user_buf, buf_size))
758 if (sscanf(buf, "%d", &value) != 1)
762 * Our users expect 0 to be "CAM", but 0 isn't actually
763 * valid here. However, let's not confuse them and present
764 * IWL_POWER_INDEX_1 as "1", not "0".
771 if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
774 if (!iwl_is_ready_rf(priv))
777 priv->power_data.debug_sleep_level_override = value;
779 mutex_lock(&priv->mutex);
780 iwl_power_update_mode(priv, true);
781 mutex_unlock(&priv->mutex);
786 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
787 char __user *user_buf,
788 size_t count, loff_t *ppos)
790 struct iwl_priv *priv = file->private_data;
793 const size_t bufsz = sizeof(buf);
795 /* see the write function */
796 value = priv->power_data.debug_sleep_level_override;
800 pos = scnprintf(buf, bufsz, "%d\n", value);
801 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
804 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
805 char __user *user_buf,
806 size_t count, loff_t *ppos)
808 struct iwl_priv *priv = file->private_data;
811 const size_t bufsz = sizeof(buf);
812 struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
814 pos += scnprintf(buf + pos, bufsz - pos,
815 "flags: %#.2x\n", le16_to_cpu(cmd->flags));
816 pos += scnprintf(buf + pos, bufsz - pos,
817 "RX/TX timeout: %d/%d usec\n",
818 le32_to_cpu(cmd->rx_data_timeout),
819 le32_to_cpu(cmd->tx_data_timeout));
820 for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
821 pos += scnprintf(buf + pos, bufsz - pos,
822 "sleep_interval[%d]: %d\n", i,
823 le32_to_cpu(cmd->sleep_interval[i]));
825 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
828 DEBUGFS_READ_WRITE_FILE_OPS(sram);
829 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
830 DEBUGFS_READ_FILE_OPS(nvm);
831 DEBUGFS_READ_FILE_OPS(stations);
832 DEBUGFS_READ_FILE_OPS(channels);
833 DEBUGFS_READ_FILE_OPS(status);
834 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
835 DEBUGFS_READ_FILE_OPS(qos);
836 DEBUGFS_READ_FILE_OPS(thermal_throttling);
837 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
838 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
839 DEBUGFS_READ_FILE_OPS(current_sleep_command);
841 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
842 char __user *user_buf,
843 size_t count, loff_t *ppos)
845 struct iwl_priv *priv = file->private_data;
846 int pos = 0, ofs = 0;
848 struct iwl_tx_queue *txq;
850 struct iwl_rx_queue *rxq = &priv->rxq;
852 int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
853 (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
858 IWL_ERR(priv, "txq not ready\n");
861 buf = kzalloc(bufsz, GFP_KERNEL);
863 IWL_ERR(priv, "Can not allocate buffer\n");
866 pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
867 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
868 txq = &priv->txq[cnt];
870 pos += scnprintf(buf + pos, bufsz - pos,
871 "q[%d]: read_ptr: %u, write_ptr: %u\n",
872 cnt, q->read_ptr, q->write_ptr);
874 if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
875 ptr = priv->tx_traffic;
876 pos += scnprintf(buf + pos, bufsz - pos,
877 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
878 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
879 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
880 entry++, ofs += 16) {
881 pos += scnprintf(buf + pos, bufsz - pos,
883 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
884 buf + pos, bufsz - pos, 0);
885 pos += strlen(buf + pos);
892 pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
893 pos += scnprintf(buf + pos, bufsz - pos,
894 "read: %u, write: %u\n",
895 rxq->read, rxq->write);
897 if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
898 ptr = priv->rx_traffic;
899 pos += scnprintf(buf + pos, bufsz - pos,
900 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
901 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
902 for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
903 entry++, ofs += 16) {
904 pos += scnprintf(buf + pos, bufsz - pos,
906 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
907 buf + pos, bufsz - pos, 0);
908 pos += strlen(buf + pos);
915 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
920 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
921 const char __user *user_buf,
922 size_t count, loff_t *ppos)
924 struct iwl_priv *priv = file->private_data;
929 memset(buf, 0, sizeof(buf));
930 buf_size = min(count, sizeof(buf) - 1);
931 if (copy_from_user(buf, user_buf, buf_size))
933 if (sscanf(buf, "%d", &traffic_log) != 1)
935 if (traffic_log == 0)
936 iwl_reset_traffic_log(priv);
941 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
942 char __user *user_buf,
943 size_t count, loff_t *ppos) {
945 struct iwl_priv *priv = file->private_data;
946 struct iwl_tx_queue *txq;
952 const size_t bufsz = sizeof(char) * 64 *
953 priv->cfg->base_params->num_of_queues;
956 IWL_ERR(priv, "txq not ready\n");
959 buf = kzalloc(bufsz, GFP_KERNEL);
963 for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
964 txq = &priv->txq[cnt];
966 pos += scnprintf(buf + pos, bufsz - pos,
967 "hwq %.2d: read=%u write=%u stop=%d"
968 " swq_id=%#.2x (ac %d/hwq %d)\n",
969 cnt, q->read_ptr, q->write_ptr,
970 !!test_bit(cnt, priv->queue_stopped),
971 txq->swq_id, txq->swq_id & 3,
972 (txq->swq_id >> 2) & 0x1f);
975 /* for the ACs, display the stop count too */
976 pos += scnprintf(buf + pos, bufsz - pos,
978 atomic_read(&priv->queue_stop_count[cnt]));
980 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
985 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
986 char __user *user_buf,
987 size_t count, loff_t *ppos) {
989 struct iwl_priv *priv = file->private_data;
990 struct iwl_rx_queue *rxq = &priv->rxq;
993 const size_t bufsz = sizeof(buf);
995 pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
997 pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
999 pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1002 pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1003 le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
1005 pos += scnprintf(buf + pos, bufsz - pos,
1006 "closed_rb_num: Not Allocated\n");
1008 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1011 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1012 char __user *user_buf,
1013 size_t count, loff_t *ppos)
1015 struct iwl_priv *priv = file->private_data;
1016 return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
1017 user_buf, count, ppos);
1020 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1021 char __user *user_buf,
1022 size_t count, loff_t *ppos)
1024 struct iwl_priv *priv = file->private_data;
1025 return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
1026 user_buf, count, ppos);
1029 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1030 char __user *user_buf,
1031 size_t count, loff_t *ppos)
1033 struct iwl_priv *priv = file->private_data;
1034 return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
1035 user_buf, count, ppos);
1038 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1039 char __user *user_buf,
1040 size_t count, loff_t *ppos) {
1042 struct iwl_priv *priv = file->private_data;
1046 int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1048 struct iwl_sensitivity_data *data;
1050 data = &priv->sensitivity_data;
1051 buf = kzalloc(bufsz, GFP_KERNEL);
1053 IWL_ERR(priv, "Can not allocate Buffer\n");
1057 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1058 data->auto_corr_ofdm);
1059 pos += scnprintf(buf + pos, bufsz - pos,
1060 "auto_corr_ofdm_mrc:\t\t %u\n",
1061 data->auto_corr_ofdm_mrc);
1062 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1063 data->auto_corr_ofdm_x1);
1064 pos += scnprintf(buf + pos, bufsz - pos,
1065 "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1066 data->auto_corr_ofdm_mrc_x1);
1067 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1068 data->auto_corr_cck);
1069 pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1070 data->auto_corr_cck_mrc);
1071 pos += scnprintf(buf + pos, bufsz - pos,
1072 "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1073 data->last_bad_plcp_cnt_ofdm);
1074 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1075 data->last_fa_cnt_ofdm);
1076 pos += scnprintf(buf + pos, bufsz - pos,
1077 "last_bad_plcp_cnt_cck:\t\t %u\n",
1078 data->last_bad_plcp_cnt_cck);
1079 pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1080 data->last_fa_cnt_cck);
1081 pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1082 data->nrg_curr_state);
1083 pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1084 data->nrg_prev_state);
1085 pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1086 for (cnt = 0; cnt < 10; cnt++) {
1087 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1088 data->nrg_value[cnt]);
1090 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1091 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1092 for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1093 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1094 data->nrg_silence_rssi[cnt]);
1096 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1097 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1098 data->nrg_silence_ref);
1099 pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1100 data->nrg_energy_idx);
1101 pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1102 data->nrg_silence_idx);
1103 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1105 pos += scnprintf(buf + pos, bufsz - pos,
1106 "nrg_auto_corr_silence_diff:\t %u\n",
1107 data->nrg_auto_corr_silence_diff);
1108 pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1109 data->num_in_cck_no_fa);
1110 pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1113 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1119 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1120 char __user *user_buf,
1121 size_t count, loff_t *ppos) {
1123 struct iwl_priv *priv = file->private_data;
1127 int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1129 struct iwl_chain_noise_data *data;
1131 data = &priv->chain_noise_data;
1132 buf = kzalloc(bufsz, GFP_KERNEL);
1134 IWL_ERR(priv, "Can not allocate Buffer\n");
1138 pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1139 data->active_chains);
1140 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1141 data->chain_noise_a);
1142 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1143 data->chain_noise_b);
1144 pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1145 data->chain_noise_c);
1146 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1147 data->chain_signal_a);
1148 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1149 data->chain_signal_b);
1150 pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1151 data->chain_signal_c);
1152 pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1153 data->beacon_count);
1155 pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1156 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1157 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1158 data->disconn_array[cnt]);
1160 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1161 pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1162 for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1163 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1164 data->delta_gain_code[cnt]);
1166 pos += scnprintf(buf + pos, bufsz - pos, "\n");
1167 pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1169 pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1172 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1177 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1178 char __user *user_buf,
1179 size_t count, loff_t *ppos)
1181 struct iwl_priv *priv = file->private_data;
1184 const size_t bufsz = sizeof(buf);
1187 pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1188 CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1190 pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1191 pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1192 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1193 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1194 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1197 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1200 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
1201 const char __user *user_buf,
1202 size_t count, loff_t *ppos)
1204 struct iwl_priv *priv = file->private_data;
1209 memset(buf, 0, sizeof(buf));
1210 buf_size = min(count, sizeof(buf) - 1);
1211 if (copy_from_user(buf, user_buf, buf_size))
1213 if (sscanf(buf, "%d", &clear) != 1)
1216 /* make request to uCode to retrieve statistics information */
1217 mutex_lock(&priv->mutex);
1218 iwl_send_statistics_request(priv, CMD_SYNC, true);
1219 mutex_unlock(&priv->mutex);
1224 static ssize_t iwl_dbgfs_csr_write(struct file *file,
1225 const char __user *user_buf,
1226 size_t count, loff_t *ppos)
1228 struct iwl_priv *priv = file->private_data;
1233 memset(buf, 0, sizeof(buf));
1234 buf_size = min(count, sizeof(buf) - 1);
1235 if (copy_from_user(buf, user_buf, buf_size))
1237 if (sscanf(buf, "%d", &csr) != 1)
1240 if (priv->cfg->ops->lib->dump_csr)
1241 priv->cfg->ops->lib->dump_csr(priv);
1246 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
1247 char __user *user_buf,
1248 size_t count, loff_t *ppos) {
1250 struct iwl_priv *priv = file->private_data;
1253 const size_t bufsz = sizeof(buf);
1255 pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
1256 priv->event_log.ucode_trace ? "On" : "Off");
1257 pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
1258 priv->event_log.non_wraps_count);
1259 pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
1260 priv->event_log.wraps_once_count);
1261 pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
1262 priv->event_log.wraps_more_count);
1264 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1267 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
1268 const char __user *user_buf,
1269 size_t count, loff_t *ppos)
1271 struct iwl_priv *priv = file->private_data;
1276 memset(buf, 0, sizeof(buf));
1277 buf_size = min(count, sizeof(buf) - 1);
1278 if (copy_from_user(buf, user_buf, buf_size))
1280 if (sscanf(buf, "%d", &trace) != 1)
1284 priv->event_log.ucode_trace = true;
1285 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
1286 mod_timer(&priv->ucode_trace,
1287 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
1289 priv->event_log.ucode_trace = false;
1290 del_timer_sync(&priv->ucode_trace);
1296 static ssize_t iwl_dbgfs_rxon_flags_read(struct file *file,
1297 char __user *user_buf,
1298 size_t count, loff_t *ppos) {
1300 struct iwl_priv *priv = file->private_data;
1304 len = sprintf(buf, "0x%04X\n",
1305 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
1306 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1309 static ssize_t iwl_dbgfs_rxon_filter_flags_read(struct file *file,
1310 char __user *user_buf,
1311 size_t count, loff_t *ppos) {
1313 struct iwl_priv *priv = file->private_data;
1317 len = sprintf(buf, "0x%04X\n",
1318 le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
1319 return simple_read_from_buffer(user_buf, count, ppos, buf, len);
1322 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
1323 char __user *user_buf,
1324 size_t count, loff_t *ppos)
1326 struct iwl_priv *priv = file->private_data;
1329 ssize_t ret = -EFAULT;
1331 if (priv->cfg->ops->lib->dump_fh) {
1332 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
1334 ret = simple_read_from_buffer(user_buf,
1335 count, ppos, buf, pos);
1343 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
1344 char __user *user_buf,
1345 size_t count, loff_t *ppos) {
1347 struct iwl_priv *priv = file->private_data;
1350 const size_t bufsz = sizeof(buf);
1352 pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
1353 priv->missed_beacon_threshold);
1355 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1358 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
1359 const char __user *user_buf,
1360 size_t count, loff_t *ppos)
1362 struct iwl_priv *priv = file->private_data;
1367 memset(buf, 0, sizeof(buf));
1368 buf_size = min(count, sizeof(buf) - 1);
1369 if (copy_from_user(buf, user_buf, buf_size))
1371 if (sscanf(buf, "%d", &missed) != 1)
1374 if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
1375 missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
1376 priv->missed_beacon_threshold =
1377 IWL_MISSED_BEACON_THRESHOLD_DEF;
1379 priv->missed_beacon_threshold = missed;
1384 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
1385 char __user *user_buf,
1386 size_t count, loff_t *ppos) {
1388 struct iwl_priv *priv = file->private_data;
1391 const size_t bufsz = sizeof(buf);
1393 pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
1394 priv->cfg->base_params->plcp_delta_threshold);
1396 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1399 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
1400 const char __user *user_buf,
1401 size_t count, loff_t *ppos) {
1403 struct iwl_priv *priv = file->private_data;
1408 memset(buf, 0, sizeof(buf));
1409 buf_size = min(count, sizeof(buf) - 1);
1410 if (copy_from_user(buf, user_buf, buf_size))
1412 if (sscanf(buf, "%d", &plcp) != 1)
1414 if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
1415 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
1416 priv->cfg->base_params->plcp_delta_threshold =
1417 IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
1419 priv->cfg->base_params->plcp_delta_threshold = plcp;
1423 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
1424 char __user *user_buf,
1425 size_t count, loff_t *ppos) {
1427 struct iwl_priv *priv = file->private_data;
1430 const size_t bufsz = sizeof(buf);
1431 struct iwl_force_reset *force_reset;
1433 for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
1434 force_reset = &priv->force_reset[i];
1435 pos += scnprintf(buf + pos, bufsz - pos,
1436 "Force reset method %d\n", i);
1437 pos += scnprintf(buf + pos, bufsz - pos,
1438 "\tnumber of reset request: %d\n",
1439 force_reset->reset_request_count);
1440 pos += scnprintf(buf + pos, bufsz - pos,
1441 "\tnumber of reset request success: %d\n",
1442 force_reset->reset_success_count);
1443 pos += scnprintf(buf + pos, bufsz - pos,
1444 "\tnumber of reset request reject: %d\n",
1445 force_reset->reset_reject_count);
1446 pos += scnprintf(buf + pos, bufsz - pos,
1447 "\treset duration: %lu\n",
1448 force_reset->reset_duration);
1450 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1453 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
1454 const char __user *user_buf,
1455 size_t count, loff_t *ppos) {
1457 struct iwl_priv *priv = file->private_data;
1462 memset(buf, 0, sizeof(buf));
1463 buf_size = min(count, sizeof(buf) - 1);
1464 if (copy_from_user(buf, user_buf, buf_size))
1466 if (sscanf(buf, "%d", &reset) != 1)
1471 ret = iwl_force_reset(priv, reset, true);
1476 return ret ? ret : count;
1479 static ssize_t iwl_dbgfs_txfifo_flush_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", &flush) != 1)
1495 if (iwl_is_rfkill(priv))
1498 priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL);
1503 static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file,
1504 char __user *user_buf,
1505 size_t count, loff_t *ppos)
1507 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1509 return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file,
1510 user_buf, count, ppos);
1513 static ssize_t iwl_dbgfs_wd_timeout_write(struct file *file,
1514 const char __user *user_buf,
1515 size_t count, loff_t *ppos) {
1517 struct iwl_priv *priv = file->private_data;
1522 memset(buf, 0, sizeof(buf));
1523 buf_size = min(count, sizeof(buf) - 1);
1524 if (copy_from_user(buf, user_buf, buf_size))
1526 if (sscanf(buf, "%d", &timeout) != 1)
1528 if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
1529 timeout = IWL_DEF_WD_TIMEOUT;
1531 priv->cfg->base_params->wd_timeout = timeout;
1532 iwl_setup_watchdog(priv);
1536 static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
1537 char __user *user_buf,
1538 size_t count, loff_t *ppos) {
1540 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1543 const size_t bufsz = sizeof(buf);
1546 if (!priv->bt_enable_flag) {
1547 pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n");
1548 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1551 pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n",
1552 priv->bt_enable_flag);
1553 pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n",
1554 priv->bt_full_concurrent ? "full concurrency" : "3-wire");
1555 pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
1556 "last traffic notif: %d\n",
1557 priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
1558 pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
1559 "sco_active: %d, kill_ack_mask: %x, "
1560 "kill_cts_mask: %x\n",
1561 priv->bt_ch_announce, priv->bt_sco_active,
1562 priv->kill_ack_mask, priv->kill_cts_mask);
1564 pos += scnprintf(buf + pos, bufsz - pos, "bluetooth traffic load: ");
1565 switch (priv->bt_traffic_load) {
1566 case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
1567 pos += scnprintf(buf + pos, bufsz - pos, "Continuous\n");
1569 case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
1570 pos += scnprintf(buf + pos, bufsz - pos, "High\n");
1572 case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
1573 pos += scnprintf(buf + pos, bufsz - pos, "Low\n");
1575 case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
1577 pos += scnprintf(buf + pos, bufsz - pos, "None\n");
1581 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1585 static ssize_t iwl_dbgfs_protection_mode_read(struct file *file,
1586 char __user *user_buf,
1587 size_t count, loff_t *ppos)
1589 struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
1593 const size_t bufsz = sizeof(buf);
1595 if (priv->cfg->ht_params)
1596 pos += scnprintf(buf + pos, bufsz - pos,
1597 "use %s for aggregation\n",
1598 (priv->cfg->ht_params->use_rts_for_aggregation) ?
1599 "rts/cts" : "cts-to-self");
1601 pos += scnprintf(buf + pos, bufsz - pos, "N/A");
1603 return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1606 static ssize_t iwl_dbgfs_protection_mode_write(struct file *file,
1607 const char __user *user_buf,
1608 size_t count, loff_t *ppos) {
1610 struct iwl_priv *priv = file->private_data;
1615 if (!priv->cfg->ht_params)
1618 memset(buf, 0, sizeof(buf));
1619 buf_size = min(count, sizeof(buf) - 1);
1620 if (copy_from_user(buf, user_buf, buf_size))
1622 if (sscanf(buf, "%d", &rts) != 1)
1625 priv->cfg->ht_params->use_rts_for_aggregation = true;
1627 priv->cfg->ht_params->use_rts_for_aggregation = false;
1631 static ssize_t iwl_dbgfs_reply_tx_error_read(struct file *file,
1632 char __user *user_buf,
1633 size_t count, loff_t *ppos)
1635 struct iwl_priv *priv = file->private_data;
1637 if (priv->cfg->ops->lib->debugfs_ops.reply_tx_error)
1638 return priv->cfg->ops->lib->debugfs_ops.reply_tx_error(
1639 file, user_buf, count, ppos);
1643 DEBUGFS_READ_FILE_OPS(rx_statistics);
1644 DEBUGFS_READ_FILE_OPS(tx_statistics);
1645 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
1646 DEBUGFS_READ_FILE_OPS(rx_queue);
1647 DEBUGFS_READ_FILE_OPS(tx_queue);
1648 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
1649 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
1650 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
1651 DEBUGFS_READ_FILE_OPS(sensitivity);
1652 DEBUGFS_READ_FILE_OPS(chain_noise);
1653 DEBUGFS_READ_FILE_OPS(power_save_status);
1654 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
1655 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
1656 DEBUGFS_WRITE_FILE_OPS(csr);
1657 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
1658 DEBUGFS_READ_FILE_OPS(fh_reg);
1659 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
1660 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
1661 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
1662 DEBUGFS_READ_FILE_OPS(rxon_flags);
1663 DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
1664 DEBUGFS_WRITE_FILE_OPS(txfifo_flush);
1665 DEBUGFS_READ_FILE_OPS(ucode_bt_stats);
1666 DEBUGFS_WRITE_FILE_OPS(wd_timeout);
1667 DEBUGFS_READ_FILE_OPS(bt_traffic);
1668 DEBUGFS_READ_WRITE_FILE_OPS(protection_mode);
1669 DEBUGFS_READ_FILE_OPS(reply_tx_error);
1672 * Create the debugfs files and directories
1675 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
1677 struct dentry *phyd = priv->hw->wiphy->debugfsdir;
1678 struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
1680 dir_drv = debugfs_create_dir(name, phyd);
1684 priv->debugfs_dir = dir_drv;
1686 dir_data = debugfs_create_dir("data", dir_drv);
1689 dir_rf = debugfs_create_dir("rf", dir_drv);
1692 dir_debug = debugfs_create_dir("debug", dir_drv);
1696 DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
1697 DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
1698 DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
1699 DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
1700 DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
1701 DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
1702 DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
1703 DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
1704 if (!priv->cfg->base_params->broken_powersave) {
1705 DEBUGFS_ADD_FILE(sleep_level_override, dir_data,
1707 DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
1709 DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
1710 DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
1711 DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
1712 DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
1713 DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
1714 DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
1715 DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
1716 DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
1717 DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
1718 DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
1719 DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
1720 DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
1721 DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
1722 DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
1723 DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
1724 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
1725 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
1726 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
1727 if (priv->cfg->ops->lib->dev_txfifo_flush)
1728 DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR);
1729 DEBUGFS_ADD_FILE(protection_mode, dir_debug, S_IWUSR | S_IRUSR);
1731 if (priv->cfg->base_params->sensitivity_calib_by_driver)
1732 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
1733 if (priv->cfg->base_params->chain_noise_calib_by_driver)
1734 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
1735 if (priv->cfg->base_params->ucode_tracing)
1736 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
1737 if (priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics)
1738 DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR);
1739 DEBUGFS_ADD_FILE(reply_tx_error, dir_debug, S_IRUSR);
1740 DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
1741 DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
1742 DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
1743 if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
1744 DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR);
1745 if (priv->cfg->base_params->sensitivity_calib_by_driver)
1746 DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
1747 &priv->disable_sens_cal);
1748 if (priv->cfg->base_params->chain_noise_calib_by_driver)
1749 DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
1750 &priv->disable_chain_noise_cal);
1751 if (priv->cfg->base_params->tx_power_by_driver)
1752 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
1753 &priv->disable_tx_power_cal);
1757 IWL_ERR(priv, "Can't create the debugfs directory\n");
1758 iwl_dbgfs_unregister(priv);
1761 EXPORT_SYMBOL(iwl_dbgfs_register);
1764 * Remove the debugfs files and directories
1767 void iwl_dbgfs_unregister(struct iwl_priv *priv)
1769 if (!priv->debugfs_dir)
1772 debugfs_remove_recursive(priv->debugfs_dir);
1773 priv->debugfs_dir = NULL;
1775 EXPORT_SYMBOL(iwl_dbgfs_unregister);