drivers/net/wireless/ti/wl1251/debugfs.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * This file is part of wl1251
  *
  * Copyright (C) 2009 Nokia Corporation
  */

 #include "debugfs.h"

 #include <linux/skbuff.h>
 #include <linux/slab.h>

 #include "wl1251.h"
 #include "acx.h"
 #include "ps.h"

 /* ms */
 #define WL1251_DEBUGFS_STATS_LIFETIME 1000

 /* debugfs macros idea from mac80211 */

 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
 static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 			    size_t count, loff_t *ppos)			\
 {									\
 	struct wl1251 *wl = file->private_data;				\
 	char buf[buflen];						\
 	int res;							\
 									\
 	res = scnprintf(buf, buflen, fmt "\n", ##value);		\
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
 }									\
 									\
 static const struct file_operations name## _ops = {			\
 	.read = name## _read,						\
 	.open = simple_open,						\
 	.llseek	= generic_file_llseek,					\
 };

 #define DEBUGFS_ADD(name, parent)					\
 	wl->debugfs.name = debugfs_create_file(#name, 0400, parent,	\
 					       wl, &name## _ops);	\

 #define DEBUGFS_DEL(name)						\
 	do {								\
 		debugfs_remove(wl->debugfs.name);			\
 		wl->debugfs.name = NULL;				\
 	} while (0)

 #define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt)			\
 static ssize_t sub## _ ##name## _read(struct file *file,		\
 				      char __user *userbuf,		\
 				      size_t count, loff_t *ppos)	\
 {									\
 	struct wl1251 *wl = file->private_data;				\
 	char buf[buflen];						\
 	int res;							\
 									\
 	wl1251_debugfs_update_stats(wl);				\
 									\
 	res = scnprintf(buf, buflen, fmt "\n",				\
 			wl->stats.fw_stats->sub.name);			\
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
 }									\
 									\
 static const struct file_operations sub## _ ##name## _ops = {		\
 	.read = sub## _ ##name## _read,					\
 	.open = simple_open,						\
 	.llseek	= generic_file_llseek,					\
 };

 #define DEBUGFS_FWSTATS_ADD(sub, name)				\
 	DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)

 #define DEBUGFS_FWSTATS_DEL(sub, name)				\
 	DEBUGFS_DEL(sub## _ ##name)

 static void wl1251_debugfs_update_stats(struct wl1251 *wl)
 {
 	int ret;

 	mutex_lock(&wl->mutex);

 	ret = wl1251_ps_elp_wakeup(wl);
 	if (ret < 0)
 		goto out;

 	if (wl->state == WL1251_STATE_ON &&
 	    time_after(jiffies, wl->stats.fw_stats_update +
 		       msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
 		wl1251_acx_statistics(wl, wl->stats.fw_stats);
 		wl->stats.fw_stats_update = jiffies;
 	}

 	wl1251_ps_elp_sleep(wl);

 out:
 	mutex_unlock(&wl->mutex);
 }

 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");

 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");

 DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
 DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
 DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
 DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");

 DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
 DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");

 DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
 DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
 /* skipping wep.reserved */
 DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
 DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
 DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
 DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");

 DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
 DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
 /* skipping cont_miss_bcns_spread for now */
 DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");

 DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
 DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");

 DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
 DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
 DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
 DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
 DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
 DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");

 DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
 DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");

 DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
 DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");

 DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
 		     20, "%u");
 DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
 DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");

 DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
 DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
 		      wl->stats.excessive_retries);

 static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 				 size_t count, loff_t *ppos)
 {
 	struct wl1251 *wl = file->private_data;
 	u32 queue_len;
 	char buf[20];
 	int res;

 	queue_len = skb_queue_len(&wl->tx_queue);

 	res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }

 static const struct file_operations tx_queue_len_ops = {
 	.read = tx_queue_len_read,
 	.open = simple_open,
 	.llseek = generic_file_llseek,
 };

 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
 				    size_t count, loff_t *ppos)
 {
 	struct wl1251 *wl = file->private_data;
 	char buf[3], status;
 	int len;

 	if (wl->tx_queue_stopped)
 		status = 's';
 	else
 		status = 'r';

 	len = scnprintf(buf, sizeof(buf), "%c\n", status);
 	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
 }

 static const struct file_operations tx_queue_status_ops = {
 	.read = tx_queue_status_read,
 	.open = simple_open,
 	.llseek = generic_file_llseek,
 };

 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
 {
 	DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);

 	DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
 	DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
 	DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
 	DEBUGFS_FWSTATS_DEL(rx, dropped);
 	DEBUGFS_FWSTATS_DEL(rx, fcs_err);
 	DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
 	DEBUGFS_FWSTATS_DEL(rx, path_reset);
 	DEBUGFS_FWSTATS_DEL(rx, reset_counter);

 	DEBUGFS_FWSTATS_DEL(dma, rx_requested);
 	DEBUGFS_FWSTATS_DEL(dma, rx_errors);
 	DEBUGFS_FWSTATS_DEL(dma, tx_requested);
 	DEBUGFS_FWSTATS_DEL(dma, tx_errors);

 	DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
 	DEBUGFS_FWSTATS_DEL(isr, fiqs);
 	DEBUGFS_FWSTATS_DEL(isr, rx_headers);
 	DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
 	DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
 	DEBUGFS_FWSTATS_DEL(isr, irqs);
 	DEBUGFS_FWSTATS_DEL(isr, tx_procs);
 	DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
 	DEBUGFS_FWSTATS_DEL(isr, dma0_done);
 	DEBUGFS_FWSTATS_DEL(isr, dma1_done);
 	DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
 	DEBUGFS_FWSTATS_DEL(isr, commands);
 	DEBUGFS_FWSTATS_DEL(isr, rx_procs);
 	DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
 	DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
 	DEBUGFS_FWSTATS_DEL(isr, pci_pm);
 	DEBUGFS_FWSTATS_DEL(isr, wakeups);
 	DEBUGFS_FWSTATS_DEL(isr, low_rssi);

 	DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
 	DEBUGFS_FWSTATS_DEL(wep, default_key_count);
 	/* skipping wep.reserved */
 	DEBUGFS_FWSTATS_DEL(wep, key_not_found);
 	DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
 	DEBUGFS_FWSTATS_DEL(wep, packets);
 	DEBUGFS_FWSTATS_DEL(wep, interrupt);

 	DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
 	DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
 	DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
 	DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
 	DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
 	DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
 	DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
 	DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
 	DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
 	DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
 	DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
 	DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
 	/* skipping cont_miss_bcns_spread for now */
 	DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);

 	DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
 	DEBUGFS_FWSTATS_DEL(mic, calc_failure);

 	DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
 	DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
 	DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
 	DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
 	DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
 	DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);

 	DEBUGFS_FWSTATS_DEL(event, heart_beat);
 	DEBUGFS_FWSTATS_DEL(event, calibration);
 	DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
 	DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
 	DEBUGFS_FWSTATS_DEL(event, rx_pool);
 	DEBUGFS_FWSTATS_DEL(event, oom_late);
 	DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
 	DEBUGFS_FWSTATS_DEL(event, tx_stuck);

 	DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
 	DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
 	DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
 	DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
 	DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
 	DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
 	DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);

 	DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
 	DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);

 	DEBUGFS_DEL(tx_queue_len);
 	DEBUGFS_DEL(tx_queue_status);
 	DEBUGFS_DEL(retry_count);
 	DEBUGFS_DEL(excessive_retries);
 }

 static void wl1251_debugfs_add_files(struct wl1251 *wl)
 {
 	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);

 	DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
 	DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
 	DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
 	DEBUGFS_FWSTATS_ADD(rx, dropped);
 	DEBUGFS_FWSTATS_ADD(rx, fcs_err);
 	DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
 	DEBUGFS_FWSTATS_ADD(rx, path_reset);
 	DEBUGFS_FWSTATS_ADD(rx, reset_counter);

 	DEBUGFS_FWSTATS_ADD(dma, rx_requested);
 	DEBUGFS_FWSTATS_ADD(dma, rx_errors);
 	DEBUGFS_FWSTATS_ADD(dma, tx_requested);
 	DEBUGFS_FWSTATS_ADD(dma, tx_errors);

 	DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
 	DEBUGFS_FWSTATS_ADD(isr, fiqs);
 	DEBUGFS_FWSTATS_ADD(isr, rx_headers);
 	DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
 	DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
 	DEBUGFS_FWSTATS_ADD(isr, irqs);
 	DEBUGFS_FWSTATS_ADD(isr, tx_procs);
 	DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
 	DEBUGFS_FWSTATS_ADD(isr, dma0_done);
 	DEBUGFS_FWSTATS_ADD(isr, dma1_done);
 	DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
 	DEBUGFS_FWSTATS_ADD(isr, commands);
 	DEBUGFS_FWSTATS_ADD(isr, rx_procs);
 	DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
 	DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
 	DEBUGFS_FWSTATS_ADD(isr, pci_pm);
 	DEBUGFS_FWSTATS_ADD(isr, wakeups);
 	DEBUGFS_FWSTATS_ADD(isr, low_rssi);

 	DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
 	DEBUGFS_FWSTATS_ADD(wep, default_key_count);
 	/* skipping wep.reserved */
 	DEBUGFS_FWSTATS_ADD(wep, key_not_found);
 	DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
 	DEBUGFS_FWSTATS_ADD(wep, packets);
 	DEBUGFS_FWSTATS_ADD(wep, interrupt);

 	DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
 	DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
 	DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
 	DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
 	DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
 	DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
 	DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
 	DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
 	DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
 	DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
 	DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
 	DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
 	/* skipping cont_miss_bcns_spread for now */
 	DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);

 	DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
 	DEBUGFS_FWSTATS_ADD(mic, calc_failure);

 	DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
 	DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
 	DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
 	DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
 	DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
 	DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);

 	DEBUGFS_FWSTATS_ADD(event, heart_beat);
 	DEBUGFS_FWSTATS_ADD(event, calibration);
 	DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
 	DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
 	DEBUGFS_FWSTATS_ADD(event, rx_pool);
 	DEBUGFS_FWSTATS_ADD(event, oom_late);
 	DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
 	DEBUGFS_FWSTATS_ADD(event, tx_stuck);

 	DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
 	DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
 	DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
 	DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
 	DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
 	DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
 	DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);

 	DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
 	DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
 	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);

 	DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
 	DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
 	DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
 	DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
 }

 void wl1251_debugfs_reset(struct wl1251 *wl)
 {
 	if (wl->stats.fw_stats != NULL)
 		memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
 	wl->stats.retry_count = 0;
 	wl->stats.excessive_retries = 0;
 }

 int wl1251_debugfs_init(struct wl1251 *wl)
 {
 	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), GFP_KERNEL);
 	if (!wl->stats.fw_stats)
 		return -ENOMEM;

 	wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);

 	wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
 						       wl->debugfs.rootdir);

 	wl->stats.fw_stats_update = jiffies;

 	wl1251_debugfs_add_files(wl);

 	return 0;
 }

 void wl1251_debugfs_exit(struct wl1251 *wl)
 {
 	wl1251_debugfs_delete_files(wl);

 	kfree(wl->stats.fw_stats);
 	wl->stats.fw_stats = NULL;

 	debugfs_remove(wl->debugfs.fw_statistics);
 	wl->debugfs.fw_statistics = NULL;

 	debugfs_remove(wl->debugfs.rootdir);
 	wl->debugfs.rootdir = NULL;

 }
	// SPDX-License-Identifier: GPL-2.0-only
	/*
	* This file is part of wl1251
	*
	* Copyright (C) 2009 Nokia Corporation
	*/

	#include "debugfs.h"

	#include <linux/skbuff.h>
	#include <linux/slab.h>

	#include "wl1251.h"
	#include "acx.h"
	#include "ps.h"

	/* ms */
	#define WL1251_DEBUGFS_STATS_LIFETIME 1000

	/* debugfs macros idea from mac80211 */

	#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
	static ssize_t name## _read(struct file file, char __user userbuf, \
	size_t count, loff_t *ppos) \
	{ \
	struct wl1251 *wl = file->private_data; \
	char buf[buflen]; \
	int res; \
	\
	res = scnprintf(buf, buflen, fmt "\n", ##value); \
	return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
	} \
	\
	static const struct file_operations name## _ops = { \
	.read = name## _read, \
	.open = simple_open, \
	.llseek = generic_file_llseek, \
	};

	#define DEBUGFS_ADD(name, parent) \
	wl->debugfs.name = debugfs_create_file(#name, 0400, parent, \
	wl, &name## _ops); \

	#define DEBUGFS_DEL(name) \
	do { \
	debugfs_remove(wl->debugfs.name); \
	wl->debugfs.name = NULL; \
	} while (0)

	#define DEBUGFS_FWSTATS_FILE(sub, name, buflen, fmt) \
	static ssize_t sub## _ ##name## _read(struct file *file, \
	char __user *userbuf, \
	size_t count, loff_t *ppos) \
	{ \
	struct wl1251 *wl = file->private_data; \
	char buf[buflen]; \
	int res; \
	\
	wl1251_debugfs_update_stats(wl); \
	\
	res = scnprintf(buf, buflen, fmt "\n", \
	wl->stats.fw_stats->sub.name); \
	return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
	} \
	\
	static const struct file_operations sub## _ ##name## _ops = { \
	.read = sub## _ ##name## _read, \
	.open = simple_open, \
	.llseek = generic_file_llseek, \
	};

	#define DEBUGFS_FWSTATS_ADD(sub, name) \
	DEBUGFS_ADD(sub## _ ##name, wl->debugfs.fw_statistics)

	#define DEBUGFS_FWSTATS_DEL(sub, name) \
	DEBUGFS_DEL(sub## _ ##name)

	static void wl1251_debugfs_update_stats(struct wl1251 *wl)
	{
	int ret;

	mutex_lock(&wl->mutex);

	ret = wl1251_ps_elp_wakeup(wl);
	if (ret < 0)
	goto out;

	if (wl->state == WL1251_STATE_ON &&
	time_after(jiffies, wl->stats.fw_stats_update +
	msecs_to_jiffies(WL1251_DEBUGFS_STATS_LIFETIME))) {
	wl1251_acx_statistics(wl, wl->stats.fw_stats);
	wl->stats.fw_stats_update = jiffies;
	}

	wl1251_ps_elp_sleep(wl);

	out:
	mutex_unlock(&wl->mutex);
	}

	DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");

	DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, hw_stuck, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, dropped, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, fcs_err, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, path_reset, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rx, reset_counter, 20, "%u");

	DEBUGFS_FWSTATS_FILE(dma, rx_requested, 20, "%u");
	DEBUGFS_FWSTATS_FILE(dma, rx_errors, 20, "%u");
	DEBUGFS_FWSTATS_FILE(dma, tx_requested, 20, "%u");
	DEBUGFS_FWSTATS_FILE(dma, tx_errors, 20, "%u");

	DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, fiqs, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, rx_headers, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, rx_rdys, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, irqs, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, tx_procs, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, decrypt_done, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, dma0_done, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, dma1_done, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, commands, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, rx_procs, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, pci_pm, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, wakeups, 20, "%u");
	DEBUGFS_FWSTATS_FILE(isr, low_rssi, 20, "%u");

	DEBUGFS_FWSTATS_FILE(wep, addr_key_count, 20, "%u");
	DEBUGFS_FWSTATS_FILE(wep, default_key_count, 20, "%u");
	/* skipping wep.reserved */
	DEBUGFS_FWSTATS_FILE(wep, key_not_found, 20, "%u");
	DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, 20, "%u");
	DEBUGFS_FWSTATS_FILE(wep, packets, 20, "%u");
	DEBUGFS_FWSTATS_FILE(wep, interrupt, 20, "%u");

	DEBUGFS_FWSTATS_FILE(pwr, ps_enter, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, elp_enter, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, power_save_off, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, enable_ps, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, disable_ps, 20, "%u");
	DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, 20, "%u");
	/* skipping cont_miss_bcns_spread for now */
	DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, 20, "%u");

	DEBUGFS_FWSTATS_FILE(mic, rx_pkts, 20, "%u");
	DEBUGFS_FWSTATS_FILE(mic, calc_failure, 20, "%u");

	DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, 20, "%u");
	DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, 20, "%u");
	DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, 20, "%u");
	DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, 20, "%u");
	DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, 20, "%u");
	DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, 20, "%u");

	DEBUGFS_FWSTATS_FILE(event, heart_beat, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, calibration, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, rx_mismatch, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, rx_pool, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, oom_late, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, 20, "%u");
	DEBUGFS_FWSTATS_FILE(event, tx_stuck, 20, "%u");

	DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, 20, "%u");
	DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, 20, "%u");

	DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data,
	20, "%u");
	DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, 20, "%u");
	DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, 20, "%u");

	DEBUGFS_READONLY_FILE(retry_count, 20, "%u", wl->stats.retry_count);
	DEBUGFS_READONLY_FILE(excessive_retries, 20, "%u",
	wl->stats.excessive_retries);

	static ssize_t tx_queue_len_read(struct file file, char __user userbuf,
	size_t count, loff_t *ppos)
	{
	struct wl1251 *wl = file->private_data;
	u32 queue_len;
	char buf[20];
	int res;

	queue_len = skb_queue_len(&wl->tx_queue);

	res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	}

	static const struct file_operations tx_queue_len_ops = {
	.read = tx_queue_len_read,
	.open = simple_open,
	.llseek = generic_file_llseek,
	};

	static ssize_t tx_queue_status_read(struct file file, char __user userbuf,
	size_t count, loff_t *ppos)
	{
	struct wl1251 *wl = file->private_data;
	char buf[3], status;
	int len;

	if (wl->tx_queue_stopped)
	status = 's';
	else
	status = 'r';

	len = scnprintf(buf, sizeof(buf), "%c\n", status);
	return simple_read_from_buffer(userbuf, count, ppos, buf, len);
	}

	static const struct file_operations tx_queue_status_ops = {
	.read = tx_queue_status_read,
	.open = simple_open,
	.llseek = generic_file_llseek,
	};

	static void wl1251_debugfs_delete_files(struct wl1251 *wl)
	{
	DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow);

	DEBUGFS_FWSTATS_DEL(rx, out_of_mem);
	DEBUGFS_FWSTATS_DEL(rx, hdr_overflow);
	DEBUGFS_FWSTATS_DEL(rx, hw_stuck);
	DEBUGFS_FWSTATS_DEL(rx, dropped);
	DEBUGFS_FWSTATS_DEL(rx, fcs_err);
	DEBUGFS_FWSTATS_DEL(rx, xfr_hint_trig);
	DEBUGFS_FWSTATS_DEL(rx, path_reset);
	DEBUGFS_FWSTATS_DEL(rx, reset_counter);

	DEBUGFS_FWSTATS_DEL(dma, rx_requested);
	DEBUGFS_FWSTATS_DEL(dma, rx_errors);
	DEBUGFS_FWSTATS_DEL(dma, tx_requested);
	DEBUGFS_FWSTATS_DEL(dma, tx_errors);

	DEBUGFS_FWSTATS_DEL(isr, cmd_cmplt);
	DEBUGFS_FWSTATS_DEL(isr, fiqs);
	DEBUGFS_FWSTATS_DEL(isr, rx_headers);
	DEBUGFS_FWSTATS_DEL(isr, rx_mem_overflow);
	DEBUGFS_FWSTATS_DEL(isr, rx_rdys);
	DEBUGFS_FWSTATS_DEL(isr, irqs);
	DEBUGFS_FWSTATS_DEL(isr, tx_procs);
	DEBUGFS_FWSTATS_DEL(isr, decrypt_done);
	DEBUGFS_FWSTATS_DEL(isr, dma0_done);
	DEBUGFS_FWSTATS_DEL(isr, dma1_done);
	DEBUGFS_FWSTATS_DEL(isr, tx_exch_complete);
	DEBUGFS_FWSTATS_DEL(isr, commands);
	DEBUGFS_FWSTATS_DEL(isr, rx_procs);
	DEBUGFS_FWSTATS_DEL(isr, hw_pm_mode_changes);
	DEBUGFS_FWSTATS_DEL(isr, host_acknowledges);
	DEBUGFS_FWSTATS_DEL(isr, pci_pm);
	DEBUGFS_FWSTATS_DEL(isr, wakeups);
	DEBUGFS_FWSTATS_DEL(isr, low_rssi);

	DEBUGFS_FWSTATS_DEL(wep, addr_key_count);
	DEBUGFS_FWSTATS_DEL(wep, default_key_count);
	/* skipping wep.reserved */
	DEBUGFS_FWSTATS_DEL(wep, key_not_found);
	DEBUGFS_FWSTATS_DEL(wep, decrypt_fail);
	DEBUGFS_FWSTATS_DEL(wep, packets);
	DEBUGFS_FWSTATS_DEL(wep, interrupt);

	DEBUGFS_FWSTATS_DEL(pwr, ps_enter);
	DEBUGFS_FWSTATS_DEL(pwr, elp_enter);
	DEBUGFS_FWSTATS_DEL(pwr, missing_bcns);
	DEBUGFS_FWSTATS_DEL(pwr, wake_on_host);
	DEBUGFS_FWSTATS_DEL(pwr, wake_on_timer_exp);
	DEBUGFS_FWSTATS_DEL(pwr, tx_with_ps);
	DEBUGFS_FWSTATS_DEL(pwr, tx_without_ps);
	DEBUGFS_FWSTATS_DEL(pwr, rcvd_beacons);
	DEBUGFS_FWSTATS_DEL(pwr, power_save_off);
	DEBUGFS_FWSTATS_DEL(pwr, enable_ps);
	DEBUGFS_FWSTATS_DEL(pwr, disable_ps);
	DEBUGFS_FWSTATS_DEL(pwr, fix_tsf_ps);
	/* skipping cont_miss_bcns_spread for now */
	DEBUGFS_FWSTATS_DEL(pwr, rcvd_awake_beacons);

	DEBUGFS_FWSTATS_DEL(mic, rx_pkts);
	DEBUGFS_FWSTATS_DEL(mic, calc_failure);

	DEBUGFS_FWSTATS_DEL(aes, encrypt_fail);
	DEBUGFS_FWSTATS_DEL(aes, decrypt_fail);
	DEBUGFS_FWSTATS_DEL(aes, encrypt_packets);
	DEBUGFS_FWSTATS_DEL(aes, decrypt_packets);
	DEBUGFS_FWSTATS_DEL(aes, encrypt_interrupt);
	DEBUGFS_FWSTATS_DEL(aes, decrypt_interrupt);

	DEBUGFS_FWSTATS_DEL(event, heart_beat);
	DEBUGFS_FWSTATS_DEL(event, calibration);
	DEBUGFS_FWSTATS_DEL(event, rx_mismatch);
	DEBUGFS_FWSTATS_DEL(event, rx_mem_empty);
	DEBUGFS_FWSTATS_DEL(event, rx_pool);
	DEBUGFS_FWSTATS_DEL(event, oom_late);
	DEBUGFS_FWSTATS_DEL(event, phy_transmit_error);
	DEBUGFS_FWSTATS_DEL(event, tx_stuck);

	DEBUGFS_FWSTATS_DEL(ps, pspoll_timeouts);
	DEBUGFS_FWSTATS_DEL(ps, upsd_timeouts);
	DEBUGFS_FWSTATS_DEL(ps, upsd_max_sptime);
	DEBUGFS_FWSTATS_DEL(ps, upsd_max_apturn);
	DEBUGFS_FWSTATS_DEL(ps, pspoll_max_apturn);
	DEBUGFS_FWSTATS_DEL(ps, pspoll_utilization);
	DEBUGFS_FWSTATS_DEL(ps, upsd_utilization);

	DEBUGFS_FWSTATS_DEL(rxpipe, rx_prep_beacon_drop);
	DEBUGFS_FWSTATS_DEL(rxpipe, descr_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_DEL(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_DEL(rxpipe, missed_beacon_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data);

	DEBUGFS_DEL(tx_queue_len);
	DEBUGFS_DEL(tx_queue_status);
	DEBUGFS_DEL(retry_count);
	DEBUGFS_DEL(excessive_retries);
	}

	static void wl1251_debugfs_add_files(struct wl1251 *wl)
	{
	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);

	DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
	DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
	DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
	DEBUGFS_FWSTATS_ADD(rx, dropped);
	DEBUGFS_FWSTATS_ADD(rx, fcs_err);
	DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
	DEBUGFS_FWSTATS_ADD(rx, path_reset);
	DEBUGFS_FWSTATS_ADD(rx, reset_counter);

	DEBUGFS_FWSTATS_ADD(dma, rx_requested);
	DEBUGFS_FWSTATS_ADD(dma, rx_errors);
	DEBUGFS_FWSTATS_ADD(dma, tx_requested);
	DEBUGFS_FWSTATS_ADD(dma, tx_errors);

	DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
	DEBUGFS_FWSTATS_ADD(isr, fiqs);
	DEBUGFS_FWSTATS_ADD(isr, rx_headers);
	DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
	DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
	DEBUGFS_FWSTATS_ADD(isr, irqs);
	DEBUGFS_FWSTATS_ADD(isr, tx_procs);
	DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
	DEBUGFS_FWSTATS_ADD(isr, dma0_done);
	DEBUGFS_FWSTATS_ADD(isr, dma1_done);
	DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
	DEBUGFS_FWSTATS_ADD(isr, commands);
	DEBUGFS_FWSTATS_ADD(isr, rx_procs);
	DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
	DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
	DEBUGFS_FWSTATS_ADD(isr, pci_pm);
	DEBUGFS_FWSTATS_ADD(isr, wakeups);
	DEBUGFS_FWSTATS_ADD(isr, low_rssi);

	DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
	DEBUGFS_FWSTATS_ADD(wep, default_key_count);
	/* skipping wep.reserved */
	DEBUGFS_FWSTATS_ADD(wep, key_not_found);
	DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
	DEBUGFS_FWSTATS_ADD(wep, packets);
	DEBUGFS_FWSTATS_ADD(wep, interrupt);

	DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
	DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
	DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
	DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
	DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
	DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
	DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
	DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
	DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
	DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
	DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
	DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
	/* skipping cont_miss_bcns_spread for now */
	DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);

	DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
	DEBUGFS_FWSTATS_ADD(mic, calc_failure);

	DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
	DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
	DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
	DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
	DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
	DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);

	DEBUGFS_FWSTATS_ADD(event, heart_beat);
	DEBUGFS_FWSTATS_ADD(event, calibration);
	DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
	DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
	DEBUGFS_FWSTATS_ADD(event, rx_pool);
	DEBUGFS_FWSTATS_ADD(event, oom_late);
	DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
	DEBUGFS_FWSTATS_ADD(event, tx_stuck);

	DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
	DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
	DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
	DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
	DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
	DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
	DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);

	DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
	DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);

	DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir);
	DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir);
	DEBUGFS_ADD(retry_count, wl->debugfs.rootdir);
	DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir);
	}

	void wl1251_debugfs_reset(struct wl1251 *wl)
	{
	if (wl->stats.fw_stats != NULL)
	memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
	wl->stats.retry_count = 0;
	wl->stats.excessive_retries = 0;
	}

	int wl1251_debugfs_init(struct wl1251 *wl)
	{
	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats), GFP_KERNEL);
	if (!wl->stats.fw_stats)
	return -ENOMEM;

	wl->debugfs.rootdir = debugfs_create_dir(KBUILD_MODNAME, NULL);

	wl->debugfs.fw_statistics = debugfs_create_dir("fw-statistics",
	wl->debugfs.rootdir);

	wl->stats.fw_stats_update = jiffies;

	wl1251_debugfs_add_files(wl);

	return 0;
	}

	void wl1251_debugfs_exit(struct wl1251 *wl)
	{
	wl1251_debugfs_delete_files(wl);

	kfree(wl->stats.fw_stats);
	wl->stats.fw_stats = NULL;

	debugfs_remove(wl->debugfs.fw_statistics);
	wl->debugfs.fw_statistics = NULL;

	debugfs_remove(wl->debugfs.rootdir);
	wl->debugfs.rootdir = NULL;

	}