[deliverable/linux.git] / drivers / net / wireless / wl12xx / debugfs.c

/*
 * This file is part of wl1271
 *
 * Copyright (C) 2009 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include "debugfs.h"

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

#include "wl12xx.h"
#include "acx.h"
#include "ps.h"
#include "io.h"

/* ms */
#define WL1271_DEBUGFS_STATS_LIFETIME 1000

/* debugfs macros idea from mac80211 */
#define DEBUGFS_FORMAT_BUFFER_SIZE 100
static int wl1271_format_buffer(char __user *userbuf, size_t count,
				    loff_t *ppos, char *fmt, ...)
{
	va_list args;
	char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
	int res;

	va_start(args, fmt);
	res = vscnprintf(buf, sizeof(buf), fmt, args);
	va_end(args);

	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}

#define DEBUGFS_READONLY_FILE(name, fmt, value...)			\
static ssize_t name## _read(struct file *file, char __user *userbuf,	\
			    size_t count, loff_t *ppos)			\
{									\
	struct wl1271 *wl = file->private_data;				\
	return wl1271_format_buffer(userbuf, count, ppos,		\
				    fmt "\n", ##value);			\
}									\
									\
static const struct file_operations name## _ops = {			\
	.read = name## _read,						\
	.open = wl1271_open_file_generic,				\
	.llseek	= generic_file_llseek,					\
};

#define DEBUGFS_ADD(name, parent)					\
	entry = debugfs_create_file(#name, 0400, parent,		\
				    wl, &name## _ops);			\
	if (!entry || IS_ERR(entry))					\
		goto err;						\

#define DEBUGFS_FWSTATS_FILE(sub, name, fmt)				\
static ssize_t sub## _ ##name## _read(struct file *file,		\
				      char __user *userbuf,		\
				      size_t count, loff_t *ppos)	\
{									\
	struct wl1271 *wl = file->private_data;				\
									\
	wl1271_debugfs_update_stats(wl);				\
									\
	return wl1271_format_buffer(userbuf, count, ppos, fmt "\n",	\
				    wl->stats.fw_stats->sub.name);	\
}									\
									\
static const struct file_operations sub## _ ##name## _ops = {		\
	.read = sub## _ ##name## _read,					\
	.open = wl1271_open_file_generic,				\
	.llseek	= generic_file_llseek,					\
};

#define DEBUGFS_FWSTATS_ADD(sub, name)				\
	DEBUGFS_ADD(sub## _ ##name, stats)

static void wl1271_debugfs_update_stats(struct wl1271 *wl)
{
	int ret;

	mutex_lock(&wl->mutex);

	ret = wl1271_ps_elp_wakeup(wl);
	if (ret < 0)
		goto out;

	if (wl->state == WL1271_STATE_ON &&
	    time_after(jiffies, wl->stats.fw_stats_update +
		       msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
		wl1271_acx_statistics(wl, wl->stats.fw_stats);
		wl->stats.fw_stats_update = jiffies;
	}

	wl1271_ps_elp_sleep(wl);

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

static int wl1271_open_file_generic(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

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

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

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

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

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

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

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

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

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

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

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

DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
DEBUGFS_READONLY_FILE(excessive_retries, "%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 wl1271 *wl = file->private_data;
	u32 queue_len;
	char buf[20];
	int res;

	queue_len = wl->tx_queue_count;

	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 = wl1271_open_file_generic,
	.llseek = default_llseek,
};

static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
			  size_t count, loff_t *ppos)
{
	struct wl1271 *wl = file->private_data;
	bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);

	int res;
	char buf[10];

	res = scnprintf(buf, sizeof(buf), "%d\n", state);

	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}

static ssize_t gpio_power_write(struct file *file,
			   const char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct wl1271 *wl = file->private_data;
	char buf[10];
	size_t len;
	unsigned long value;
	int ret;

	len = min(count, sizeof(buf) - 1);
	if (copy_from_user(buf, user_buf, len)) {
		return -EFAULT;
	}
	buf[len] = '\0';

	ret = strict_strtoul(buf, 0, &value);
	if (ret < 0) {
		wl1271_warning("illegal value in gpio_power");
		return -EINVAL;
	}

	mutex_lock(&wl->mutex);

	if (value)
		wl1271_power_on(wl);
	else
		wl1271_power_off(wl);

	mutex_unlock(&wl->mutex);
	return count;
}

static const struct file_operations gpio_power_ops = {
	.read = gpio_power_read,
	.write = gpio_power_write,
	.open = wl1271_open_file_generic,
	.llseek = default_llseek,
};

static int wl1271_debugfs_add_files(struct wl1271 *wl,
				     struct dentry *rootdir)
{
	int ret = 0;
	struct dentry *entry, *stats;

	stats = debugfs_create_dir("fw-statistics", rootdir);
	if (!stats || IS_ERR(stats)) {
		entry = stats;
		goto err;
	}

	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, rootdir);
	DEBUGFS_ADD(retry_count, rootdir);
	DEBUGFS_ADD(excessive_retries, rootdir);

	DEBUGFS_ADD(gpio_power, rootdir);

	return 0;

err:
	if (IS_ERR(entry))
		ret = PTR_ERR(entry);
	else
		ret = -ENOMEM;

	return ret;
}

void wl1271_debugfs_reset(struct wl1271 *wl)
{
	if (!wl->stats.fw_stats)
		return;

	memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
	wl->stats.retry_count = 0;
	wl->stats.excessive_retries = 0;
}

int wl1271_debugfs_init(struct wl1271 *wl)
{
	int ret;
	struct dentry *rootdir;

	rootdir = debugfs_create_dir(KBUILD_MODNAME,
				     wl->hw->wiphy->debugfsdir);

	if (IS_ERR(rootdir)) {
		ret = PTR_ERR(rootdir);
		goto err;
	}

	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
				      GFP_KERNEL);

	if (!wl->stats.fw_stats) {
		ret = -ENOMEM;
		goto err_fw;
	}

	wl->stats.fw_stats_update = jiffies;

	ret = wl1271_debugfs_add_files(wl, rootdir);

	if (ret < 0)
		goto err_file;

	return 0;

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

err_fw:
	debugfs_remove_recursive(rootdir);

err:
	return ret;
}

void wl1271_debugfs_exit(struct wl1271 *wl)
{
	kfree(wl->stats.fw_stats);
	wl->stats.fw_stats = NULL;
}
Commit	Line	Data
f5fc0f86 LC	1	/*
	2	* This file is part of wl1271
	3	*
	4	* Copyright (C) 2009 Nokia Corporation
	5	*
	6	* Contact: Luciano Coelho <luciano.coelho@nokia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	20	* 02110-1301 USA
	21	*
	22	*/
	23
00d20100	24	#include "debugfs.h"
f5fc0f86 LC	25
f5fc0f86 LC	26	#include <linux/skbuff.h>
5a0e3ad6	27	#include <linux/slab.h>
f5fc0f86	28
00d20100 SL	29	#include "wl12xx.h"
	30	#include "acx.h"
	31	#include "ps.h"
	32	#include "io.h"
f5fc0f86 LC	33
	34	/* ms */
	35	#define WL1271_DEBUGFS_STATS_LIFETIME 1000
	36
	37	/* debugfs macros idea from mac80211 */
03107a4b EP	38	#define DEBUGFS_FORMAT_BUFFER_SIZE 100
	39	static int wl1271_format_buffer(char __user *userbuf, size_t count,
	40	loff_t ppos, char fmt, ...)
	41	{
	42	va_list args;
	43	char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
	44	int res;
	45
	46	va_start(args, fmt);
	47	res = vscnprintf(buf, sizeof(buf), fmt, args);
	48	va_end(args);
f5fc0f86	49
03107a4b EP	50	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	51	}
	52
	53	#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
f5fc0f86 LC	54	static ssize_t name## _read(struct file file, char __user userbuf, \
	55	size_t count, loff_t *ppos) \
	56	{ \
	57	struct wl1271 *wl = file->private_data; \
03107a4b EP	58	return wl1271_format_buffer(userbuf, count, ppos, \
03107a4b EP	59	fmt "\n", ##value); \
f5fc0f86 LC	60	} \
	61	\
	62	static const struct file_operations name## _ops = { \
	63	.read = name## _read, \
	64	.open = wl1271_open_file_generic, \
2b18ab36	65	.llseek = generic_file_llseek, \
f5fc0f86 LC	66	};
	67
	68	#define DEBUGFS_ADD(name, parent) \
7cb2cea9 EP	69	entry = debugfs_create_file(#name, 0400, parent, \
	70	wl, &name## _ops); \
	71	if (!entry \|\| IS_ERR(entry)) \
	72	goto err; \
f5fc0f86	73
03107a4b	74	#define DEBUGFS_FWSTATS_FILE(sub, name, fmt) \
f5fc0f86 LC	75	static ssize_t sub## _ ##name## _read(struct file *file, \
	76	char __user *userbuf, \
	77	size_t count, loff_t *ppos) \
	78	{ \
	79	struct wl1271 *wl = file->private_data; \
f5fc0f86 LC	80	\
	81	wl1271_debugfs_update_stats(wl); \
	82	\
03107a4b EP	83	return wl1271_format_buffer(userbuf, count, ppos, fmt "\n", \
03107a4b EP	84	wl->stats.fw_stats->sub.name); \
f5fc0f86 LC	85	} \
	86	\
	87	static const struct file_operations sub## _ ##name## _ops = { \
	88	.read = sub## _ ##name## _read, \
	89	.open = wl1271_open_file_generic, \
2b18ab36	90	.llseek = generic_file_llseek, \
f5fc0f86 LC	91	};
	92
	93	#define DEBUGFS_FWSTATS_ADD(sub, name) \
7cb2cea9	94	DEBUGFS_ADD(sub## _ ##name, stats)
f5fc0f86 LC	95
	96	static void wl1271_debugfs_update_stats(struct wl1271 *wl)
	97	{
	98	int ret;
	99
	100	mutex_lock(&wl->mutex);
	101
a620865e	102	ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86 LC	103	if (ret < 0)
	104	goto out;
	105
	106	if (wl->state == WL1271_STATE_ON &&
	107	time_after(jiffies, wl->stats.fw_stats_update +
	108	msecs_to_jiffies(WL1271_DEBUGFS_STATS_LIFETIME))) {
	109	wl1271_acx_statistics(wl, wl->stats.fw_stats);
	110	wl->stats.fw_stats_update = jiffies;
	111	}
	112
	113	wl1271_ps_elp_sleep(wl);
	114
	115	out:
	116	mutex_unlock(&wl->mutex);
	117	}
	118
	119	static int wl1271_open_file_generic(struct inode inode, struct file file)
	120	{
	121	file->private_data = inode->i_private;
	122	return 0;
	123	}
	124
03107a4b EP	125	DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
	126
	127	DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
	128	DEBUGFS_FWSTATS_FILE(rx, hdr_overflow, "%u");
	129	DEBUGFS_FWSTATS_FILE(rx, hw_stuck, "%u");
	130	DEBUGFS_FWSTATS_FILE(rx, dropped, "%u");
	131	DEBUGFS_FWSTATS_FILE(rx, fcs_err, "%u");
	132	DEBUGFS_FWSTATS_FILE(rx, xfr_hint_trig, "%u");
	133	DEBUGFS_FWSTATS_FILE(rx, path_reset, "%u");
	134	DEBUGFS_FWSTATS_FILE(rx, reset_counter, "%u");
	135
	136	DEBUGFS_FWSTATS_FILE(dma, rx_requested, "%u");
	137	DEBUGFS_FWSTATS_FILE(dma, rx_errors, "%u");
	138	DEBUGFS_FWSTATS_FILE(dma, tx_requested, "%u");
	139	DEBUGFS_FWSTATS_FILE(dma, tx_errors, "%u");
	140
	141	DEBUGFS_FWSTATS_FILE(isr, cmd_cmplt, "%u");
	142	DEBUGFS_FWSTATS_FILE(isr, fiqs, "%u");
	143	DEBUGFS_FWSTATS_FILE(isr, rx_headers, "%u");
	144	DEBUGFS_FWSTATS_FILE(isr, rx_mem_overflow, "%u");
	145	DEBUGFS_FWSTATS_FILE(isr, rx_rdys, "%u");
	146	DEBUGFS_FWSTATS_FILE(isr, irqs, "%u");
	147	DEBUGFS_FWSTATS_FILE(isr, tx_procs, "%u");
	148	DEBUGFS_FWSTATS_FILE(isr, decrypt_done, "%u");
	149	DEBUGFS_FWSTATS_FILE(isr, dma0_done, "%u");
	150	DEBUGFS_FWSTATS_FILE(isr, dma1_done, "%u");
	151	DEBUGFS_FWSTATS_FILE(isr, tx_exch_complete, "%u");
	152	DEBUGFS_FWSTATS_FILE(isr, commands, "%u");
	153	DEBUGFS_FWSTATS_FILE(isr, rx_procs, "%u");
	154	DEBUGFS_FWSTATS_FILE(isr, hw_pm_mode_changes, "%u");
	155	DEBUGFS_FWSTATS_FILE(isr, host_acknowledges, "%u");
	156	DEBUGFS_FWSTATS_FILE(isr, pci_pm, "%u");
	157	DEBUGFS_FWSTATS_FILE(isr, wakeups, "%u");
	158	DEBUGFS_FWSTATS_FILE(isr, low_rssi, "%u");
	159
	160	DEBUGFS_FWSTATS_FILE(wep, addr_key_count, "%u");
	161	DEBUGFS_FWSTATS_FILE(wep, default_key_count, "%u");
f5fc0f86	162	/* skipping wep.reserved */
03107a4b EP	163	DEBUGFS_FWSTATS_FILE(wep, key_not_found, "%u");
	164	DEBUGFS_FWSTATS_FILE(wep, decrypt_fail, "%u");
	165	DEBUGFS_FWSTATS_FILE(wep, packets, "%u");
	166	DEBUGFS_FWSTATS_FILE(wep, interrupt, "%u");
	167
	168	DEBUGFS_FWSTATS_FILE(pwr, ps_enter, "%u");
	169	DEBUGFS_FWSTATS_FILE(pwr, elp_enter, "%u");
	170	DEBUGFS_FWSTATS_FILE(pwr, missing_bcns, "%u");
	171	DEBUGFS_FWSTATS_FILE(pwr, wake_on_host, "%u");
	172	DEBUGFS_FWSTATS_FILE(pwr, wake_on_timer_exp, "%u");
	173	DEBUGFS_FWSTATS_FILE(pwr, tx_with_ps, "%u");
	174	DEBUGFS_FWSTATS_FILE(pwr, tx_without_ps, "%u");
	175	DEBUGFS_FWSTATS_FILE(pwr, rcvd_beacons, "%u");
	176	DEBUGFS_FWSTATS_FILE(pwr, power_save_off, "%u");
	177	DEBUGFS_FWSTATS_FILE(pwr, enable_ps, "%u");
	178	DEBUGFS_FWSTATS_FILE(pwr, disable_ps, "%u");
	179	DEBUGFS_FWSTATS_FILE(pwr, fix_tsf_ps, "%u");
f5fc0f86	180	/* skipping cont_miss_bcns_spread for now */
03107a4b EP	181	DEBUGFS_FWSTATS_FILE(pwr, rcvd_awake_beacons, "%u");
	182
	183	DEBUGFS_FWSTATS_FILE(mic, rx_pkts, "%u");
	184	DEBUGFS_FWSTATS_FILE(mic, calc_failure, "%u");
	185
	186	DEBUGFS_FWSTATS_FILE(aes, encrypt_fail, "%u");
	187	DEBUGFS_FWSTATS_FILE(aes, decrypt_fail, "%u");
	188	DEBUGFS_FWSTATS_FILE(aes, encrypt_packets, "%u");
	189	DEBUGFS_FWSTATS_FILE(aes, decrypt_packets, "%u");
	190	DEBUGFS_FWSTATS_FILE(aes, encrypt_interrupt, "%u");
	191	DEBUGFS_FWSTATS_FILE(aes, decrypt_interrupt, "%u");
	192
	193	DEBUGFS_FWSTATS_FILE(event, heart_beat, "%u");
	194	DEBUGFS_FWSTATS_FILE(event, calibration, "%u");
	195	DEBUGFS_FWSTATS_FILE(event, rx_mismatch, "%u");
	196	DEBUGFS_FWSTATS_FILE(event, rx_mem_empty, "%u");
	197	DEBUGFS_FWSTATS_FILE(event, rx_pool, "%u");
	198	DEBUGFS_FWSTATS_FILE(event, oom_late, "%u");
	199	DEBUGFS_FWSTATS_FILE(event, phy_transmit_error, "%u");
	200	DEBUGFS_FWSTATS_FILE(event, tx_stuck, "%u");
	201
	202	DEBUGFS_FWSTATS_FILE(ps, pspoll_timeouts, "%u");
	203	DEBUGFS_FWSTATS_FILE(ps, upsd_timeouts, "%u");
	204	DEBUGFS_FWSTATS_FILE(ps, upsd_max_sptime, "%u");
	205	DEBUGFS_FWSTATS_FILE(ps, upsd_max_apturn, "%u");
	206	DEBUGFS_FWSTATS_FILE(ps, pspoll_max_apturn, "%u");
	207	DEBUGFS_FWSTATS_FILE(ps, pspoll_utilization, "%u");
	208	DEBUGFS_FWSTATS_FILE(ps, upsd_utilization, "%u");
	209
	210	DEBUGFS_FWSTATS_FILE(rxpipe, rx_prep_beacon_drop, "%u");
	211	DEBUGFS_FWSTATS_FILE(rxpipe, descr_host_int_trig_rx_data, "%u");
	212	DEBUGFS_FWSTATS_FILE(rxpipe, beacon_buffer_thres_host_int_trig_rx_data, "%u");
	213	DEBUGFS_FWSTATS_FILE(rxpipe, missed_beacon_host_int_trig_rx_data, "%u");
	214	DEBUGFS_FWSTATS_FILE(rxpipe, tx_xfr_host_int_trig_rx_data, "%u");
	215
	216	DEBUGFS_READONLY_FILE(retry_count, "%u", wl->stats.retry_count);
	217	DEBUGFS_READONLY_FILE(excessive_retries, "%u",
f5fc0f86 LC	218	wl->stats.excessive_retries);
	219
	220	static ssize_t tx_queue_len_read(struct file file, char __user userbuf,
	221	size_t count, loff_t *ppos)
	222	{
	223	struct wl1271 *wl = file->private_data;
	224	u32 queue_len;
	225	char buf[20];
	226	int res;
	227
6742f554	228	queue_len = wl->tx_queue_count;
f5fc0f86 LC	229
	230	res = scnprintf(buf, sizeof(buf), "%u\n", queue_len);
	231	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	232	}
	233
	234	static const struct file_operations tx_queue_len_ops = {
	235	.read = tx_queue_len_read,
	236	.open = wl1271_open_file_generic,
6038f373	237	.llseek = default_llseek,
f5fc0f86 LC	238	};
f5fc0f86 LC	239
98b2a684 LC	240	static ssize_t gpio_power_read(struct file file, char __user user_buf,
	241	size_t count, loff_t *ppos)
	242	{
	243	struct wl1271 *wl = file->private_data;
71449f8d JO	244	bool state = test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
71449f8d JO	245
98b2a684 LC	246	int res;
	247	char buf[10];
	248
71449f8d	249	res = scnprintf(buf, sizeof(buf), "%d\n", state);
98b2a684 LC	250
	251	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	252	}
	253
	254	static ssize_t gpio_power_write(struct file *file,
	255	const char __user *user_buf,
	256	size_t count, loff_t *ppos)
	257	{
	258	struct wl1271 *wl = file->private_data;
	259	char buf[10];
	260	size_t len;
	261	unsigned long value;
	262	int ret;
	263
98b2a684 LC	264	len = min(count, sizeof(buf) - 1);
98b2a684 LC	265	if (copy_from_user(buf, user_buf, len)) {
8e2de74e	266	return -EFAULT;
98b2a684 LC	267	}
	268	buf[len] = '\0';
	269
	270	ret = strict_strtoul(buf, 0, &value);
	271	if (ret < 0) {
	272	wl1271_warning("illegal value in gpio_power");
8e2de74e	273	return -EINVAL;
98b2a684 LC	274	}
98b2a684 LC	275
8e2de74e EP	276	mutex_lock(&wl->mutex);
8e2de74e EP	277
becd551c TP	278	if (value)
	279	wl1271_power_on(wl);
	280	else
	281	wl1271_power_off(wl);
98b2a684	282
98b2a684 LC	283	mutex_unlock(&wl->mutex);
	284	return count;
	285	}
	286
	287	static const struct file_operations gpio_power_ops = {
	288	.read = gpio_power_read,
	289	.write = gpio_power_write,
6038f373 AB	290	.open = wl1271_open_file_generic,
6038f373 AB	291	.llseek = default_llseek,
98b2a684 LC	292	};
98b2a684 LC	293
3c2c04a1 EP	294	static int wl1271_debugfs_add_files(struct wl1271 *wl,
3c2c04a1 EP	295	struct dentry *rootdir)
f5fc0f86 LC	296	{
f5fc0f86 LC	297	int ret = 0;
7cb2cea9 EP	298	struct dentry entry, stats;
7cb2cea9 EP	299
3c2c04a1	300	stats = debugfs_create_dir("fw-statistics", rootdir);
7cb2cea9 EP	301	if (!stats \|\| IS_ERR(stats)) {
	302	entry = stats;
	303	goto err;
	304	}
f5fc0f86 LC	305
	306	DEBUGFS_FWSTATS_ADD(tx, internal_desc_overflow);
	307
	308	DEBUGFS_FWSTATS_ADD(rx, out_of_mem);
	309	DEBUGFS_FWSTATS_ADD(rx, hdr_overflow);
	310	DEBUGFS_FWSTATS_ADD(rx, hw_stuck);
	311	DEBUGFS_FWSTATS_ADD(rx, dropped);
	312	DEBUGFS_FWSTATS_ADD(rx, fcs_err);
	313	DEBUGFS_FWSTATS_ADD(rx, xfr_hint_trig);
	314	DEBUGFS_FWSTATS_ADD(rx, path_reset);
	315	DEBUGFS_FWSTATS_ADD(rx, reset_counter);
	316
	317	DEBUGFS_FWSTATS_ADD(dma, rx_requested);
	318	DEBUGFS_FWSTATS_ADD(dma, rx_errors);
	319	DEBUGFS_FWSTATS_ADD(dma, tx_requested);
	320	DEBUGFS_FWSTATS_ADD(dma, tx_errors);
	321
	322	DEBUGFS_FWSTATS_ADD(isr, cmd_cmplt);
	323	DEBUGFS_FWSTATS_ADD(isr, fiqs);
	324	DEBUGFS_FWSTATS_ADD(isr, rx_headers);
	325	DEBUGFS_FWSTATS_ADD(isr, rx_mem_overflow);
	326	DEBUGFS_FWSTATS_ADD(isr, rx_rdys);
	327	DEBUGFS_FWSTATS_ADD(isr, irqs);
	328	DEBUGFS_FWSTATS_ADD(isr, tx_procs);
	329	DEBUGFS_FWSTATS_ADD(isr, decrypt_done);
	330	DEBUGFS_FWSTATS_ADD(isr, dma0_done);
	331	DEBUGFS_FWSTATS_ADD(isr, dma1_done);
	332	DEBUGFS_FWSTATS_ADD(isr, tx_exch_complete);
	333	DEBUGFS_FWSTATS_ADD(isr, commands);
	334	DEBUGFS_FWSTATS_ADD(isr, rx_procs);
	335	DEBUGFS_FWSTATS_ADD(isr, hw_pm_mode_changes);
	336	DEBUGFS_FWSTATS_ADD(isr, host_acknowledges);
	337	DEBUGFS_FWSTATS_ADD(isr, pci_pm);
	338	DEBUGFS_FWSTATS_ADD(isr, wakeups);
	339	DEBUGFS_FWSTATS_ADD(isr, low_rssi);
	340
	341	DEBUGFS_FWSTATS_ADD(wep, addr_key_count);
	342	DEBUGFS_FWSTATS_ADD(wep, default_key_count);
	343	/* skipping wep.reserved */
	344	DEBUGFS_FWSTATS_ADD(wep, key_not_found);
	345	DEBUGFS_FWSTATS_ADD(wep, decrypt_fail);
	346	DEBUGFS_FWSTATS_ADD(wep, packets);
	347	DEBUGFS_FWSTATS_ADD(wep, interrupt);
	348
	349	DEBUGFS_FWSTATS_ADD(pwr, ps_enter);
	350	DEBUGFS_FWSTATS_ADD(pwr, elp_enter);
	351	DEBUGFS_FWSTATS_ADD(pwr, missing_bcns);
	352	DEBUGFS_FWSTATS_ADD(pwr, wake_on_host);
	353	DEBUGFS_FWSTATS_ADD(pwr, wake_on_timer_exp);
	354	DEBUGFS_FWSTATS_ADD(pwr, tx_with_ps);
	355	DEBUGFS_FWSTATS_ADD(pwr, tx_without_ps);
	356	DEBUGFS_FWSTATS_ADD(pwr, rcvd_beacons);
	357	DEBUGFS_FWSTATS_ADD(pwr, power_save_off);
	358	DEBUGFS_FWSTATS_ADD(pwr, enable_ps);
	359	DEBUGFS_FWSTATS_ADD(pwr, disable_ps);
	360	DEBUGFS_FWSTATS_ADD(pwr, fix_tsf_ps);
	361	/* skipping cont_miss_bcns_spread for now */
	362	DEBUGFS_FWSTATS_ADD(pwr, rcvd_awake_beacons);
	363
	364	DEBUGFS_FWSTATS_ADD(mic, rx_pkts);
	365	DEBUGFS_FWSTATS_ADD(mic, calc_failure);
	366
	367	DEBUGFS_FWSTATS_ADD(aes, encrypt_fail);
	368	DEBUGFS_FWSTATS_ADD(aes, decrypt_fail);
369	DEBUGFS_FWSTATS_ADD(aes, encrypt_packets);
370	DEBUGFS_FWSTATS_ADD(aes, decrypt_packets);
371	DEBUGFS_FWSTATS_ADD(aes, encrypt_interrupt);
372	DEBUGFS_FWSTATS_ADD(aes, decrypt_interrupt);
373
374	DEBUGFS_FWSTATS_ADD(event, heart_beat);
375	DEBUGFS_FWSTATS_ADD(event, calibration);
376	DEBUGFS_FWSTATS_ADD(event, rx_mismatch);
377	DEBUGFS_FWSTATS_ADD(event, rx_mem_empty);
378	DEBUGFS_FWSTATS_ADD(event, rx_pool);
379	DEBUGFS_FWSTATS_ADD(event, oom_late);
380	DEBUGFS_FWSTATS_ADD(event, phy_transmit_error);
381	DEBUGFS_FWSTATS_ADD(event, tx_stuck);
382
383	DEBUGFS_FWSTATS_ADD(ps, pspoll_timeouts);
384	DEBUGFS_FWSTATS_ADD(ps, upsd_timeouts);
385	DEBUGFS_FWSTATS_ADD(ps, upsd_max_sptime);
386	DEBUGFS_FWSTATS_ADD(ps, upsd_max_apturn);
387	DEBUGFS_FWSTATS_ADD(ps, pspoll_max_apturn);
388	DEBUGFS_FWSTATS_ADD(ps, pspoll_utilization);
389	DEBUGFS_FWSTATS_ADD(ps, upsd_utilization);
390
391	DEBUGFS_FWSTATS_ADD(rxpipe, rx_prep_beacon_drop);
392	DEBUGFS_FWSTATS_ADD(rxpipe, descr_host_int_trig_rx_data);
393	DEBUGFS_FWSTATS_ADD(rxpipe, beacon_buffer_thres_host_int_trig_rx_data);
394	DEBUGFS_FWSTATS_ADD(rxpipe, missed_beacon_host_int_trig_rx_data);
395	DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data);
396
3c2c04a1 EP	397	DEBUGFS_ADD(tx_queue_len, rootdir);
	398	DEBUGFS_ADD(retry_count, rootdir);
	399	DEBUGFS_ADD(excessive_retries, rootdir);
f5fc0f86	400
3c2c04a1	401	DEBUGFS_ADD(gpio_power, rootdir);
98b2a684	402
7cb2cea9 EP	403	return 0;
	404
	405	err:
	406	if (IS_ERR(entry))
	407	ret = PTR_ERR(entry);
	408	else
	409	ret = -ENOMEM;
f5fc0f86 LC	410
	411	return ret;
	412	}
	413
	414	void wl1271_debugfs_reset(struct wl1271 *wl)
	415	{
3c2c04a1	416	if (!wl->stats.fw_stats)
43a598d5 LC	417	return;
43a598d5 LC	418
f5fc0f86 LC	419	memset(wl->stats.fw_stats, 0, sizeof(*wl->stats.fw_stats));
	420	wl->stats.retry_count = 0;
	421	wl->stats.excessive_retries = 0;
	422	}
	423
	424	int wl1271_debugfs_init(struct wl1271 *wl)
	425	{
	426	int ret;
3c2c04a1	427	struct dentry *rootdir;
f5fc0f86	428
3c2c04a1 EP	429	rootdir = debugfs_create_dir(KBUILD_MODNAME,
3c2c04a1 EP	430	wl->hw->wiphy->debugfsdir);
f5fc0f86	431
3c2c04a1 EP	432	if (IS_ERR(rootdir)) {
3c2c04a1 EP	433	ret = PTR_ERR(rootdir);
f5fc0f86 LC	434	goto err;
	435	}
	436
f5fc0f86 LC	437	wl->stats.fw_stats = kzalloc(sizeof(*wl->stats.fw_stats),
	438	GFP_KERNEL);
	439
	440	if (!wl->stats.fw_stats) {
	441	ret = -ENOMEM;
	442	goto err_fw;
	443	}
	444
	445	wl->stats.fw_stats_update = jiffies;
	446
3c2c04a1	447	ret = wl1271_debugfs_add_files(wl, rootdir);
f5fc0f86 LC	448
	449	if (ret < 0)
	450	goto err_file;
	451
	452	return 0;
	453
	454	err_file:
	455	kfree(wl->stats.fw_stats);
	456	wl->stats.fw_stats = NULL;
	457
	458	err_fw:
3c2c04a1	459	debugfs_remove_recursive(rootdir);
f5fc0f86 LC	460
	461	err:
	462	return ret;
	463	}
	464
	465	void wl1271_debugfs_exit(struct wl1271 *wl)
	466	{
f5fc0f86 LC	467	kfree(wl->stats.fw_stats);
f5fc0f86 LC	468	wl->stats.fw_stats = NULL;
f5fc0f86	469	}