[deliverable/linux.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(frequency, "%d",
		      local->hw.conf.channel->center_freq);
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");

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,
};

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

	switch (local->hw.conf.channel_type) {
	case NL80211_CHAN_NO_HT:
		buf = "no ht\n";
		break;
	case NL80211_CHAN_HT20:
		buf = "ht20\n";
		break;
	case NL80211_CHAN_HT40MINUS:
		buf = "ht40-\n";
		break;
	case NL80211_CHAN_HT40PLUS:
		buf = "ht40+\n";
		break;
	default:
		buf = "???";
		break;
	}

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

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_PERIOD)
		sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\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");
	if (local->hw.flags & IEEE80211_HW_SCAN_WHILE_IDLE)
		sf += snprintf(buf + sf, mxln - sf, "SCAN_WHILE_IDLE\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(channel_type);
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(frequency);
	DEBUGFS_ADD(total_ps_buffered);
	DEBUGFS_ADD(wep_iv);
	DEBUGFS_ADD(queues);
	DEBUGFS_ADD_MODE(reset, 0200);
	DEBUGFS_ADD(channel_type);
	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(frequency, "%d",
8318d78a	67	local->hw.conf.channel->center_freq);
07caf9d6	68	DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
e9f207f0	69	local->total_ps_buffered);
07caf9d6	70	DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
e9f207f0	71	local->wep_iv & 0xffffff);
07caf9d6	72	DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
af65cd96	73	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
3b5d665b	74
827b1fb4 JB	75	static ssize_t reset_write(struct file file, const char __user user_buf,
	76	size_t count, loff_t *ppos)
	77	{
	78	struct ieee80211_local *local = file->private_data;
	79
	80	rtnl_lock();
eecc4800	81	__ieee80211_suspend(&local->hw, NULL);
827b1fb4 JB	82	__ieee80211_resume(&local->hw);
	83	rtnl_unlock();
	84
	85	return count;
	86	}
	87
	88	static const struct file_operations reset_ops = {
	89	.write = reset_write,
234e3405	90	.open = simple_open,
6038f373	91	.llseek = noop_llseek,
827b1fb4 JB	92	};
827b1fb4 JB	93
199d69f2 BP	94	static ssize_t channel_type_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	const char *buf;
	99
	100	switch (local->hw.conf.channel_type) {
	101	case NL80211_CHAN_NO_HT:
	102	buf = "no ht\n";
	103	break;
	104	case NL80211_CHAN_HT20:
	105	buf = "ht20\n";
	106	break;
	107	case NL80211_CHAN_HT40MINUS:
	108	buf = "ht40-\n";
	109	break;
	110	case NL80211_CHAN_HT40PLUS:
	111	buf = "ht40+\n";
	112	break;
	113	default:
	114	buf = "???";
	115	break;
	116	}
	117
	118	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	119	}
	120
279daf64 BG	121	static ssize_t hwflags_read(struct file file, char __user user_buf,
	122	size_t count, loff_t *ppos)
	123	{
	124	struct ieee80211_local *local = file->private_data;
	125	int mxln = 500;
	126	ssize_t rv;
	127	char *buf = kzalloc(mxln, GFP_KERNEL);
	128	int sf = 0; /* how many written so far */
	129
d15b8459 JP	130	if (!buf)
	131	return 0;
	132
279daf64 BG	133	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
	134	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
	135	sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
	136	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
	137	sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
	138	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
	139	sf += snprintf(buf + sf, mxln - sf,
	140	"HOST_BCAST_PS_BUFFERING\n");
	141	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
	142	sf += snprintf(buf + sf, mxln - sf,
	143	"2GHZ_SHORT_SLOT_INCAPABLE\n");
	144	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
	145	sf += snprintf(buf + sf, mxln - sf,
	146	"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
	147	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
	148	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
	149	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
	150	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
	151	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
	152	sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n");
	153	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
	154	sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
	155	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
	156	sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
	157	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
	158	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
	159	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
	160	sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
	161	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
	162	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
	163	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
	164	sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
279daf64 BG	165	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
	166	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
	167	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
	168	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
	169	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
	170	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
	171	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
	172	sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
	173	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
	174	sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
279daf64 BG	175	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
	176	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
	177	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
	178	sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
edf6b784 AN	179	if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
edf6b784 AN	180	sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
885bd8ec EP	181	if (local->hw.flags & IEEE80211_HW_SCAN_WHILE_IDLE)
885bd8ec EP	182	sf += snprintf(buf + sf, mxln - sf, "SCAN_WHILE_IDLE\n");
279daf64 BG	183
	184	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	185	kfree(buf);
	186	return rv;
	187	}
199d69f2	188
db2e6bd4 JB	189	static ssize_t queues_read(struct file file, char __user user_buf,
	190	size_t count, loff_t *ppos)
	191	{
	192	struct ieee80211_local *local = file->private_data;
	193	unsigned long flags;
	194	char buf[IEEE80211_MAX_QUEUES * 20];
	195	int q, res = 0;
	196
	197	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	198	for (q = 0; q < local->hw.queues; q++)
	199	res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
	200	local->queue_stop_reasons[q],
3b8d81e0	201	skb_queue_len(&local->pending[q]));
db2e6bd4 JB	202	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
	203
	204	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	205	}
	206
279daf64 BG	207	DEBUGFS_READONLY_FILE_OPS(hwflags);
	208	DEBUGFS_READONLY_FILE_OPS(channel_type);
	209	DEBUGFS_READONLY_FILE_OPS(queues);
db2e6bd4	210
e9f207f0 JB	211	/* statistics stuff */
e9f207f0 JB	212
e9f207f0 JB	213	static ssize_t format_devstat_counter(struct ieee80211_local *local,
	214	char __user *userbuf,
	215	size_t count, loff_t *ppos,
	216	int (printvalue)(struct ieee80211_low_level_stats stats, char *buf,
	217	int buflen))
	218	{
	219	struct ieee80211_low_level_stats stats;
	220	char buf[20];
	221	int res;
	222
75636525	223	rtnl_lock();
24487981	224	res = drv_get_stats(local, &stats);
e9f207f0	225	rtnl_unlock();
24487981 JB	226	if (res)
	227	return res;
	228	res = printvalue(&stats, buf, sizeof(buf));
e9f207f0 JB	229	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	230	}
	231
	232	#define DEBUGFS_DEVSTATS_FILE(name) \
	233	static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
	234	char *buf, int buflen) \
	235	{ \
	236	return scnprintf(buf, buflen, "%u\n", stats->name); \
	237	} \
	238	static ssize_t stats_ ##name## _read(struct file *file, \
	239	char __user *userbuf, \
	240	size_t count, loff_t *ppos) \
	241	{ \
	242	return format_devstat_counter(file->private_data, \
	243	userbuf, \
	244	count, \
	245	ppos, \
	246	print_devstats_##name); \
	247	} \
	248	\
	249	static const struct file_operations stats_ ##name## _ops = { \
	250	.read = stats_ ##name## _read, \
234e3405	251	.open = simple_open, \
2b18ab36	252	.llseek = generic_file_llseek, \
e9f207f0 JB	253	};
e9f207f0 JB	254
2826bcd8 FF	255	#define DEBUGFS_STATS_ADD(name, field) \
	256	debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
	257	#define DEBUGFS_DEVSTATS_ADD(name) \
7bcfaf2f	258	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
e9f207f0	259
e9f207f0 JB	260	DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
	261	DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
	262	DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
	263	DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
	264
e9f207f0 JB	265	void debugfs_hw_add(struct ieee80211_local *local)
	266	{
	267	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	268	struct dentry *statsd;
	269
	270	if (!phyd)
	271	return;
	272
e9f207f0 JB	273	local->debugfs.keys = debugfs_create_dir("keys", phyd);
e9f207f0 JB	274
e9f207f0	275	DEBUGFS_ADD(frequency);
e9f207f0	276	DEBUGFS_ADD(total_ps_buffered);
e9f207f0	277	DEBUGFS_ADD(wep_iv);
db2e6bd4	278	DEBUGFS_ADD(queues);
827b1fb4	279	DEBUGFS_ADD_MODE(reset, 0200);
199d69f2	280	DEBUGFS_ADD(channel_type);
279daf64	281	DEBUGFS_ADD(hwflags);
83bdf2a1 BG	282	DEBUGFS_ADD(user_power);
83bdf2a1 BG	283	DEBUGFS_ADD(power);
e9f207f0 JB	284
e9f207f0 JB	285	statsd = debugfs_create_dir("statistics", phyd);
e9f207f0 JB	286
	287	/* if the dir failed, don't put all the other things into the root! */
	288	if (!statsd)
	289	return;
	290
2826bcd8 FF	291	DEBUGFS_STATS_ADD(transmitted_fragment_count,
	292	local->dot11TransmittedFragmentCount);
	293	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
	294	local->dot11MulticastTransmittedFrameCount);
	295	DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
	296	DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
	297	DEBUGFS_STATS_ADD(multiple_retry_count,
	298	local->dot11MultipleRetryCount);
	299	DEBUGFS_STATS_ADD(frame_duplicate_count,
	300	local->dot11FrameDuplicateCount);
	301	DEBUGFS_STATS_ADD(received_fragment_count,
	302	local->dot11ReceivedFragmentCount);
	303	DEBUGFS_STATS_ADD(multicast_received_frame_count,
	304	local->dot11MulticastReceivedFrameCount);
	305	DEBUGFS_STATS_ADD(transmitted_frame_count,
	306	local->dot11TransmittedFrameCount);
e9f207f0	307	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
2826bcd8 FF	308	DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
	309	DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
	310	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
	311	local->tx_handlers_drop_unencrypted);
	312	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
	313	local->tx_handlers_drop_fragment);
	314	DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
	315	local->tx_handlers_drop_wep);
	316	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
	317	local->tx_handlers_drop_not_assoc);
	318	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
	319	local->tx_handlers_drop_unauth_port);
	320	DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
	321	DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
	322	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
	323	local->rx_handlers_drop_nullfunc);
	324	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
	325	local->rx_handlers_drop_defrag);
	326	DEBUGFS_STATS_ADD(rx_handlers_drop_short,
	327	local->rx_handlers_drop_short);
2826bcd8 FF	328	DEBUGFS_STATS_ADD(tx_expand_skb_head,
	329	local->tx_expand_skb_head);
	330	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
	331	local->tx_expand_skb_head_cloned);
	332	DEBUGFS_STATS_ADD(rx_expand_skb_head,
	333	local->rx_expand_skb_head);
	334	DEBUGFS_STATS_ADD(rx_expand_skb_head2,
	335	local->rx_expand_skb_head2);
	336	DEBUGFS_STATS_ADD(rx_handlers_fragments,
	337	local->rx_handlers_fragments);
	338	DEBUGFS_STATS_ADD(tx_status_drop,
	339	local->tx_status_drop);
e9f207f0	340	#endif
2826bcd8 FF	341	DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
	342	DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
	343	DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
	344	DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
e9f207f0	345	}