[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / mac80211 / debugfs.c


/*
 * mac80211 debugfs for wireless PHYs
 *
 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 *
 * GPLv2
 *
 */

#include <linux/debugfs.h>
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "debugfs.h"

#define DEBUGFS_FORMAT_BUFFER_SIZE 100

int mac80211_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_FN(name, fmt, value...)			\
static ssize_t name## _read(struct file *file, char __user *userbuf,	\
			    size_t count, loff_t *ppos)			\
{									\
	struct ieee80211_local *local = file->private_data;		\
									\
	return mac80211_format_buffer(userbuf, count, ppos, 		\
				      fmt "\n", ##value);		\
}

#define DEBUGFS_READONLY_FILE_OPS(name)			\
static const struct file_operations name## _ops = {			\
	.read = name## _read,						\
	.open = simple_open,						\
	.llseek = generic_file_llseek,					\
};

#define DEBUGFS_READONLY_FILE(name, fmt, value...)		\
	DEBUGFS_READONLY_FILE_FN(name, fmt, value)		\
	DEBUGFS_READONLY_FILE_OPS(name)

#define DEBUGFS_ADD(name)						\
	debugfs_create_file(#name, 0400, phyd, local, &name## _ops);

#define DEBUGFS_ADD_MODE(name, mode)					\
	debugfs_create_file(#name, mode, phyd, local, &name## _ops);


DEBUGFS_READONLY_FILE(user_power, "%d",
		      local->user_power_level);
DEBUGFS_READONLY_FILE(power, "%d",
		      local->hw.conf.power_level);
DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
		      local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
		      local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");

#ifdef CONFIG_PM
static ssize_t reset_write(struct file *file, const char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;

	rtnl_lock();
	__ieee80211_suspend(&local->hw, NULL);
	__ieee80211_resume(&local->hw);
	rtnl_unlock();

	return count;
}

static const struct file_operations reset_ops = {
	.write = reset_write,
	.open = simple_open,
	.llseek = noop_llseek,
};
#endif

static ssize_t hwflags_read(struct file *file, char __user *user_buf,
			    size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	int mxln = 500;
	ssize_t rv;
	char *buf = kzalloc(mxln, GFP_KERNEL);
	int sf = 0; /* how many written so far */

	if (!buf)
		return 0;

	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
		sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
		sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
		sf += snprintf(buf + sf, mxln - sf,
			       "HOST_BCAST_PS_BUFFERING\n");
	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
		sf += snprintf(buf + sf, mxln - sf,
			       "2GHZ_SHORT_SLOT_INCAPABLE\n");
	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
		sf += snprintf(buf + sf, mxln - sf,
			       "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC)
		sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_BEFORE_ASSOC\n");
	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
		sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
		sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
		sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
		sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
		sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
		sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
		sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
	if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
		sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");

	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	kfree(buf);
	return rv;
}

static ssize_t queues_read(struct file *file, char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long flags;
	char buf[IEEE80211_MAX_QUEUES * 20];
	int q, res = 0;

	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	for (q = 0; q < local->hw.queues; q++)
		res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
				local->queue_stop_reasons[q],
				skb_queue_len(&local->pending[q]));
	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);

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

DEBUGFS_READONLY_FILE_OPS(hwflags);
DEBUGFS_READONLY_FILE_OPS(queues);

/* statistics stuff */

static ssize_t format_devstat_counter(struct ieee80211_local *local,
	char __user *userbuf,
	size_t count, loff_t *ppos,
	int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
			  int buflen))
{
	struct ieee80211_low_level_stats stats;
	char buf[20];
	int res;

	rtnl_lock();
	res = drv_get_stats(local, &stats);
	rtnl_unlock();
	if (res)
		return res;
	res = printvalue(&stats, buf, sizeof(buf));
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}

#define DEBUGFS_DEVSTATS_FILE(name)					\
static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
				 char *buf, int buflen)			\
{									\
	return scnprintf(buf, buflen, "%u\n", stats->name);		\
}									\
static ssize_t stats_ ##name## _read(struct file *file,			\
				     char __user *userbuf,		\
				     size_t count, loff_t *ppos)	\
{									\
	return format_devstat_counter(file->private_data,		\
				      userbuf,				\
				      count,				\
				      ppos,				\
				      print_devstats_##name);		\
}									\
									\
static const struct file_operations stats_ ##name## _ops = {		\
	.read = stats_ ##name## _read,					\
	.open = simple_open,						\
	.llseek = generic_file_llseek,					\
};

#define DEBUGFS_STATS_ADD(name, field)					\
	debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
#define DEBUGFS_DEVSTATS_ADD(name)					\
	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);

DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);

void debugfs_hw_add(struct ieee80211_local *local)
{
	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	struct dentry *statsd;

	if (!phyd)
		return;

	local->debugfs.keys = debugfs_create_dir("keys", phyd);

	DEBUGFS_ADD(total_ps_buffered);
	DEBUGFS_ADD(wep_iv);
	DEBUGFS_ADD(queues);
#ifdef CONFIG_PM
	DEBUGFS_ADD_MODE(reset, 0200);
#endif
	DEBUGFS_ADD(hwflags);
	DEBUGFS_ADD(user_power);
	DEBUGFS_ADD(power);

	statsd = debugfs_create_dir("statistics", phyd);

	/* if the dir failed, don't put all the other things into the root! */
	if (!statsd)
		return;

	DEBUGFS_STATS_ADD(transmitted_fragment_count,
		local->dot11TransmittedFragmentCount);
	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
		local->dot11MulticastTransmittedFrameCount);
	DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
	DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
	DEBUGFS_STATS_ADD(multiple_retry_count,
		local->dot11MultipleRetryCount);
	DEBUGFS_STATS_ADD(frame_duplicate_count,
		local->dot11FrameDuplicateCount);
	DEBUGFS_STATS_ADD(received_fragment_count,
		local->dot11ReceivedFragmentCount);
	DEBUGFS_STATS_ADD(multicast_received_frame_count,
		local->dot11MulticastReceivedFrameCount);
	DEBUGFS_STATS_ADD(transmitted_frame_count,
		local->dot11TransmittedFrameCount);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
	DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
		local->tx_handlers_drop_unencrypted);
	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
		local->tx_handlers_drop_fragment);
	DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
		local->tx_handlers_drop_wep);
	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
		local->tx_handlers_drop_not_assoc);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
		local->tx_handlers_drop_unauth_port);
	DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
	DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
		local->rx_handlers_drop_nullfunc);
	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
		local->rx_handlers_drop_defrag);
	DEBUGFS_STATS_ADD(rx_handlers_drop_short,
		local->rx_handlers_drop_short);
	DEBUGFS_STATS_ADD(tx_expand_skb_head,
		local->tx_expand_skb_head);
	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
		local->tx_expand_skb_head_cloned);
	DEBUGFS_STATS_ADD(rx_expand_skb_head,
		local->rx_expand_skb_head);
	DEBUGFS_STATS_ADD(rx_expand_skb_head2,
		local->rx_expand_skb_head2);
	DEBUGFS_STATS_ADD(rx_handlers_fragments,
		local->rx_handlers_fragments);
	DEBUGFS_STATS_ADD(tx_status_drop,
		local->tx_status_drop);
#endif
	DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
	DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
	DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
	DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
}
Commit	Line	Data
7bcfaf2f	1
e9f207f0 JB	2	/*
	3	* mac80211 debugfs for wireless PHYs
	4	*
	5	* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
	6	*
	7	* GPLv2
	8	*
	9	*/
	10
	11	#include <linux/debugfs.h>
	12	#include <linux/rtnetlink.h>
	13	#include "ieee80211_i.h"
24487981	14	#include "driver-ops.h"
2c8dccc7	15	#include "rate.h"
e9f207f0 JB	16	#include "debugfs.h"
e9f207f0 JB	17
07caf9d6 EP	18	#define DEBUGFS_FORMAT_BUFFER_SIZE 100
	19
	20	int mac80211_format_buffer(char __user *userbuf, size_t count,
	21	loff_t ppos, char fmt, ...)
	22	{
	23	va_list args;
	24	char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
	25	int res;
	26
	27	va_start(args, fmt);
	28	res = vscnprintf(buf, sizeof(buf), fmt, args);
	29	va_end(args);
	30
	31	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	32	}
	33
279daf64	34	#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
e9f207f0 JB	35	static ssize_t name## _read(struct file file, char __user userbuf, \
	36	size_t count, loff_t *ppos) \
	37	{ \
	38	struct ieee80211_local *local = file->private_data; \
e9f207f0	39	\
07caf9d6 EP	40	return mac80211_format_buffer(userbuf, count, ppos, \
07caf9d6 EP	41	fmt "\n", ##value); \
279daf64 BG	42	}
	43
	44	#define DEBUGFS_READONLY_FILE_OPS(name) \
e9f207f0 JB	45	static const struct file_operations name## _ops = { \
e9f207f0 JB	46	.read = name## _read, \
234e3405	47	.open = simple_open, \
2b18ab36	48	.llseek = generic_file_llseek, \
e9f207f0 JB	49	};
e9f207f0 JB	50
279daf64 BG	51	#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
	52	DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
	53	DEBUGFS_READONLY_FILE_OPS(name)
	54
e9f207f0	55	#define DEBUGFS_ADD(name) \
7bcfaf2f	56	debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
e9f207f0	57
827b1fb4	58	#define DEBUGFS_ADD_MODE(name, mode) \
7bcfaf2f	59	debugfs_create_file(#name, mode, phyd, local, &name## _ops);
e9f207f0 JB	60
e9f207f0 JB	61
83bdf2a1 BG	62	DEBUGFS_READONLY_FILE(user_power, "%d",
	63	local->user_power_level);
	64	DEBUGFS_READONLY_FILE(power, "%d",
	65	local->hw.conf.power_level);
07caf9d6	66	DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
e9f207f0	67	local->total_ps_buffered);
07caf9d6	68	DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
e9f207f0	69	local->wep_iv & 0xffffff);
07caf9d6	70	DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
af65cd96	71	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
3b5d665b	72
2ad4814f	73	#ifdef CONFIG_PM
827b1fb4 JB	74	static ssize_t reset_write(struct file file, const char __user user_buf,
	75	size_t count, loff_t *ppos)
	76	{
	77	struct ieee80211_local *local = file->private_data;
	78
	79	rtnl_lock();
eecc4800	80	__ieee80211_suspend(&local->hw, NULL);
827b1fb4 JB	81	__ieee80211_resume(&local->hw);
	82	rtnl_unlock();
	83
	84	return count;
	85	}
	86
	87	static const struct file_operations reset_ops = {
	88	.write = reset_write,
234e3405	89	.open = simple_open,
6038f373	90	.llseek = noop_llseek,
827b1fb4	91	};
2ad4814f	92	#endif
827b1fb4	93
279daf64 BG	94	static ssize_t hwflags_read(struct file file, char __user user_buf,
	95	size_t count, loff_t *ppos)
	96	{
	97	struct ieee80211_local *local = file->private_data;
	98	int mxln = 500;
	99	ssize_t rv;
	100	char *buf = kzalloc(mxln, GFP_KERNEL);
	101	int sf = 0; /* how many written so far */
	102
d15b8459 JP	103	if (!buf)
	104	return 0;
	105
279daf64 BG	106	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
	107	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
	108	sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
	109	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
	110	sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
	111	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
	112	sf += snprintf(buf + sf, mxln - sf,
	113	"HOST_BCAST_PS_BUFFERING\n");
	114	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
	115	sf += snprintf(buf + sf, mxln - sf,
	116	"2GHZ_SHORT_SLOT_INCAPABLE\n");
	117	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
	118	sf += snprintf(buf + sf, mxln - sf,
	119	"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
	120	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
	121	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
	122	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
	123	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
c65dd147 EG	124	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC)
c65dd147 EG	125	sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_BEFORE_ASSOC\n");
279daf64 BG	126	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
	127	sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
	128	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
	129	sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
	130	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
	131	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
	132	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
	133	sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
	134	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
	135	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
	136	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
	137	sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
279daf64 BG	138	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
	139	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
	140	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
	141	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
	142	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
	143	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
	144	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
	145	sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
	146	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
	147	sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
279daf64 BG	148	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
	149	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
	150	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
	151	sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
edf6b784 AN	152	if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
edf6b784 AN	153	sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
279daf64 BG	154
	155	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	156	kfree(buf);
	157	return rv;
	158	}
199d69f2	159
db2e6bd4 JB	160	static ssize_t queues_read(struct file file, char __user user_buf,
	161	size_t count, loff_t *ppos)
	162	{
	163	struct ieee80211_local *local = file->private_data;
	164	unsigned long flags;
	165	char buf[IEEE80211_MAX_QUEUES * 20];
	166	int q, res = 0;
	167
	168	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	169	for (q = 0; q < local->hw.queues; q++)
	170	res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
	171	local->queue_stop_reasons[q],
3b8d81e0	172	skb_queue_len(&local->pending[q]));
db2e6bd4 JB	173	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
	174
	175	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	176	}
	177
279daf64	178	DEBUGFS_READONLY_FILE_OPS(hwflags);
279daf64	179	DEBUGFS_READONLY_FILE_OPS(queues);
db2e6bd4	180
e9f207f0 JB	181	/* statistics stuff */
e9f207f0 JB	182
e9f207f0 JB	183	static ssize_t format_devstat_counter(struct ieee80211_local *local,
	184	char __user *userbuf,
	185	size_t count, loff_t *ppos,
	186	int (printvalue)(struct ieee80211_low_level_stats stats, char *buf,
	187	int buflen))
	188	{
	189	struct ieee80211_low_level_stats stats;
	190	char buf[20];
	191	int res;
	192
75636525	193	rtnl_lock();
24487981	194	res = drv_get_stats(local, &stats);
e9f207f0	195	rtnl_unlock();
24487981 JB	196	if (res)
	197	return res;
	198	res = printvalue(&stats, buf, sizeof(buf));
e9f207f0 JB	199	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	200	}
	201
	202	#define DEBUGFS_DEVSTATS_FILE(name) \
	203	static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
	204	char *buf, int buflen) \
	205	{ \
	206	return scnprintf(buf, buflen, "%u\n", stats->name); \
	207	} \
	208	static ssize_t stats_ ##name## _read(struct file *file, \
	209	char __user *userbuf, \
	210	size_t count, loff_t *ppos) \
	211	{ \
	212	return format_devstat_counter(file->private_data, \
	213	userbuf, \
	214	count, \
	215	ppos, \
	216	print_devstats_##name); \
	217	} \
	218	\
	219	static const struct file_operations stats_ ##name## _ops = { \
	220	.read = stats_ ##name## _read, \
234e3405	221	.open = simple_open, \
2b18ab36	222	.llseek = generic_file_llseek, \
e9f207f0 JB	223	};
e9f207f0 JB	224
2826bcd8 FF	225	#define DEBUGFS_STATS_ADD(name, field) \
	226	debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
	227	#define DEBUGFS_DEVSTATS_ADD(name) \
7bcfaf2f	228	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
e9f207f0	229
e9f207f0 JB	230	DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
	231	DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
	232	DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
	233	DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
	234
e9f207f0 JB	235	void debugfs_hw_add(struct ieee80211_local *local)
	236	{
	237	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	238	struct dentry *statsd;
	239
	240	if (!phyd)
	241	return;
	242
e9f207f0 JB	243	local->debugfs.keys = debugfs_create_dir("keys", phyd);
e9f207f0 JB	244
e9f207f0	245	DEBUGFS_ADD(total_ps_buffered);
e9f207f0	246	DEBUGFS_ADD(wep_iv);
db2e6bd4	247	DEBUGFS_ADD(queues);
2ad4814f	248	#ifdef CONFIG_PM
827b1fb4	249	DEBUGFS_ADD_MODE(reset, 0200);
2ad4814f	250	#endif
279daf64	251	DEBUGFS_ADD(hwflags);
83bdf2a1 BG	252	DEBUGFS_ADD(user_power);
83bdf2a1 BG	253	DEBUGFS_ADD(power);
e9f207f0 JB	254
e9f207f0 JB	255	statsd = debugfs_create_dir("statistics", phyd);
e9f207f0 JB	256
	257	/* if the dir failed, don't put all the other things into the root! */
	258	if (!statsd)
	259	return;
	260
2826bcd8 FF	261	DEBUGFS_STATS_ADD(transmitted_fragment_count,
	262	local->dot11TransmittedFragmentCount);
	263	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
	264	local->dot11MulticastTransmittedFrameCount);
	265	DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
	266	DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
	267	DEBUGFS_STATS_ADD(multiple_retry_count,
	268	local->dot11MultipleRetryCount);
	269	DEBUGFS_STATS_ADD(frame_duplicate_count,
	270	local->dot11FrameDuplicateCount);
	271	DEBUGFS_STATS_ADD(received_fragment_count,
	272	local->dot11ReceivedFragmentCount);
	273	DEBUGFS_STATS_ADD(multicast_received_frame_count,
	274	local->dot11MulticastReceivedFrameCount);
	275	DEBUGFS_STATS_ADD(transmitted_frame_count,
	276	local->dot11TransmittedFrameCount);
e9f207f0	277	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
2826bcd8 FF	278	DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
	279	DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
	280	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
	281	local->tx_handlers_drop_unencrypted);
	282	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
	283	local->tx_handlers_drop_fragment);
	284	DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
	285	local->tx_handlers_drop_wep);
	286	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
	287	local->tx_handlers_drop_not_assoc);
	288	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
	289	local->tx_handlers_drop_unauth_port);
	290	DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
	291	DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
	292	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
	293	local->rx_handlers_drop_nullfunc);
	294	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
	295	local->rx_handlers_drop_defrag);
	296	DEBUGFS_STATS_ADD(rx_handlers_drop_short,
	297	local->rx_handlers_drop_short);
2826bcd8 FF	298	DEBUGFS_STATS_ADD(tx_expand_skb_head,
	299	local->tx_expand_skb_head);
	300	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
	301	local->tx_expand_skb_head_cloned);
	302	DEBUGFS_STATS_ADD(rx_expand_skb_head,
	303	local->rx_expand_skb_head);
	304	DEBUGFS_STATS_ADD(rx_expand_skb_head2,
	305	local->rx_expand_skb_head2);
	306	DEBUGFS_STATS_ADD(rx_handlers_fragments,
	307	local->rx_handlers_fragments);
	308	DEBUGFS_STATS_ADD(tx_status_drop,
	309	local->tx_status_drop);
e9f207f0	310	#endif
2826bcd8 FF	311	DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
	312	DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
	313	DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
	314	DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
e9f207f0	315	}