[net-next-2.6.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"

int mac80211_open_file_generic(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}

#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 ieee80211_local *local = 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 = mac80211_open_file_generic,				\
};

#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(frequency, 20, "%d",
		      local->hw.conf.channel->center_freq);
DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
		      local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
		      local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");

static ssize_t tsf_read(struct file *file, char __user *user_buf,
			     size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	u64 tsf;
	char buf[100];

	tsf = drv_get_tsf(local);

	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);

	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
}

static ssize_t tsf_write(struct file *file,
                         const char __user *user_buf,
                         size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long long tsf;
	char buf[100];
	size_t len;

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

	if (strncmp(buf, "reset", 5) == 0) {
		if (local->ops->reset_tsf) {
			drv_reset_tsf(local);
			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
		}
	} else {
		tsf = simple_strtoul(buf, NULL, 0);
		if (local->ops->set_tsf) {
			drv_set_tsf(local, tsf);
			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
		}
	}

	return count;
}

static const struct file_operations tsf_ops = {
	.read = tsf_read,
	.write = tsf_write,
	.open = mac80211_open_file_generic
};

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);
	__ieee80211_resume(&local->hw);
	rtnl_unlock();

	return count;
}

static const struct file_operations reset_ops = {
	.write = reset_write,
	.open = mac80211_open_file_generic,
};

static ssize_t noack_read(struct file *file, char __user *user_buf,
			  size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	int res;
	char buf[10];

	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);

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

static ssize_t noack_write(struct file *file,
			   const char __user *user_buf,
			   size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	char buf[10];
	size_t len;

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

	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);

	return count;
}

static const struct file_operations noack_ops = {
	.read = noack_read,
	.write = noack_write,
	.open = mac80211_open_file_generic
};

static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
				 size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	int res;
	char buf[10];

	res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues);

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

static ssize_t uapsd_queues_write(struct file *file,
				  const char __user *user_buf,
				  size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long val;
	char buf[10];
	size_t len;
	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, &val);

	if (ret)
		return -EINVAL;

	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
		return -ERANGE;

	local->uapsd_queues = val;

	return count;
}

static const struct file_operations uapsd_queues_ops = {
	.read = uapsd_queues_read,
	.write = uapsd_queues_write,
	.open = mac80211_open_file_generic
};

static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
				     size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	int res;
	char buf[10];

	res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len);

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

static ssize_t uapsd_max_sp_len_write(struct file *file,
				      const char __user *user_buf,
				      size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	unsigned long val;
	char buf[10];
	size_t len;
	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, &val);

	if (ret)
		return -EINVAL;

	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
		return -ERANGE;

	local->uapsd_max_sp_len = val;

	return count;
}

static const struct file_operations uapsd_max_sp_len_ops = {
	.read = uapsd_max_sp_len_read,
	.write = uapsd_max_sp_len_write,
	.open = mac80211_open_file_generic
};

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 const struct file_operations channel_type_ops = {
	.read = channel_type_read,
	.open = mac80211_open_file_generic
};

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);
}

static const struct file_operations queues_ops = {
	.read = queues_read,
	.open = mac80211_open_file_generic
};

/* statistics stuff */

#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)			\
	DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)

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 = mac80211_open_file_generic,				\
};

#define DEBUGFS_STATS_ADD(name)						\
	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);

DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
		   local->dot11TransmittedFragmentCount);
DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
		   local->dot11MulticastTransmittedFrameCount);
DEBUGFS_STATS_FILE(failed_count, 20, "%u",
		   local->dot11FailedCount);
DEBUGFS_STATS_FILE(retry_count, 20, "%u",
		   local->dot11RetryCount);
DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
		   local->dot11MultipleRetryCount);
DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
		   local->dot11FrameDuplicateCount);
DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
		   local->dot11ReceivedFragmentCount);
DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
		   local->dot11MulticastReceivedFrameCount);
DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
		   local->dot11TransmittedFrameCount);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
		   local->tx_handlers_drop);
DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
		   local->tx_handlers_queued);
DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
		   local->tx_handlers_drop_unencrypted);
DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
		   local->tx_handlers_drop_fragment);
DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
		   local->tx_handlers_drop_wep);
DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
		   local->tx_handlers_drop_not_assoc);
DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
		   local->tx_handlers_drop_unauth_port);
DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
		   local->rx_handlers_drop);
DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
		   local->rx_handlers_queued);
DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
		   local->rx_handlers_drop_nullfunc);
DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
		   local->rx_handlers_drop_defrag);
DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
		   local->rx_handlers_drop_short);
DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
		   local->rx_handlers_drop_passive_scan);
DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
		   local->tx_expand_skb_head);
DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
		   local->tx_expand_skb_head_cloned);
DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
		   local->rx_expand_skb_head);
DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
		   local->rx_expand_skb_head2);
DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
		   local->rx_handlers_fragments);
DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
		   local->tx_status_drop);

#endif

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

	DEBUGFS_ADD(frequency);
	DEBUGFS_ADD(total_ps_buffered);
	DEBUGFS_ADD(wep_iv);
	DEBUGFS_ADD(tsf);
	DEBUGFS_ADD(queues);
	DEBUGFS_ADD_MODE(reset, 0200);
	DEBUGFS_ADD(noack);
	DEBUGFS_ADD(uapsd_queues);
	DEBUGFS_ADD(uapsd_max_sp_len);
	DEBUGFS_ADD(channel_type);

	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);
	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
	DEBUGFS_STATS_ADD(failed_count);
	DEBUGFS_STATS_ADD(retry_count);
	DEBUGFS_STATS_ADD(multiple_retry_count);
	DEBUGFS_STATS_ADD(frame_duplicate_count);
	DEBUGFS_STATS_ADD(received_fragment_count);
	DEBUGFS_STATS_ADD(multicast_received_frame_count);
	DEBUGFS_STATS_ADD(transmitted_frame_count);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	DEBUGFS_STATS_ADD(tx_handlers_drop);
	DEBUGFS_STATS_ADD(tx_handlers_queued);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
	DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
	DEBUGFS_STATS_ADD(rx_handlers_drop);
	DEBUGFS_STATS_ADD(rx_handlers_queued);
	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
	DEBUGFS_STATS_ADD(rx_handlers_drop_short);
	DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
	DEBUGFS_STATS_ADD(tx_expand_skb_head);
	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
	DEBUGFS_STATS_ADD(rx_expand_skb_head);
	DEBUGFS_STATS_ADD(rx_expand_skb_head2);
	DEBUGFS_STATS_ADD(rx_handlers_fragments);
	DEBUGFS_STATS_ADD(tx_status_drop);
#endif
	DEBUGFS_STATS_ADD(dot11ACKFailureCount);
	DEBUGFS_STATS_ADD(dot11RTSFailureCount);
	DEBUGFS_STATS_ADD(dot11FCSErrorCount);
	DEBUGFS_STATS_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"
	17
	18	int mac80211_open_file_generic(struct inode inode, struct file file)
	19	{
	20	file->private_data = inode->i_private;
	21	return 0;
	22	}
	23
e9f207f0 JB	24	#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
	25	static ssize_t name## _read(struct file file, char __user userbuf, \
	26	size_t count, loff_t *ppos) \
	27	{ \
	28	struct ieee80211_local *local = file->private_data; \
	29	char buf[buflen]; \
	30	int res; \
	31	\
	32	res = scnprintf(buf, buflen, fmt "\n", ##value); \
	33	return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
	34	} \
	35	\
	36	static const struct file_operations name## _ops = { \
	37	.read = name## _read, \
	38	.open = mac80211_open_file_generic, \
	39	};
	40
	41	#define DEBUGFS_ADD(name) \
7bcfaf2f	42	debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
e9f207f0	43
827b1fb4	44	#define DEBUGFS_ADD_MODE(name, mode) \
7bcfaf2f	45	debugfs_create_file(#name, mode, phyd, local, &name## _ops);
e9f207f0 JB	46
e9f207f0 JB	47
e9f207f0	48	DEBUGFS_READONLY_FILE(frequency, 20, "%d",
8318d78a	49	local->hw.conf.channel->center_freq);
e9f207f0 JB	50	DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
e9f207f0 JB	51	local->total_ps_buffered);
3b5d665b	52	DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
e9f207f0	53	local->wep_iv & 0xffffff);
e9f207f0	54	DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
af65cd96	55	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
3b5d665b AF	56
	57	static ssize_t tsf_read(struct file file, char __user user_buf,
	58	size_t count, loff_t *ppos)
	59	{
	60	struct ieee80211_local *local = file->private_data;
24487981	61	u64 tsf;
3b5d665b AF	62	char buf[100];
3b5d665b AF	63
24487981	64	tsf = drv_get_tsf(local);
3b5d665b AF	65
	66	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
	67
	68	return simple_read_from_buffer(user_buf, count, ppos, buf, 19);
	69	}
	70
	71	static ssize_t tsf_write(struct file *file,
	72	const char __user *user_buf,
	73	size_t count, loff_t *ppos)
	74	{
	75	struct ieee80211_local *local = file->private_data;
	76	unsigned long long tsf;
	77	char buf[100];
	78	size_t len;
	79
	80	len = min(count, sizeof(buf) - 1);
	81	if (copy_from_user(buf, user_buf, len))
	82	return -EFAULT;
	83	buf[len] = '\0';
	84
	85	if (strncmp(buf, "reset", 5) == 0) {
	86	if (local->ops->reset_tsf) {
24487981	87	drv_reset_tsf(local);
3b5d665b AF	88	printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
	89	}
	90	} else {
	91	tsf = simple_strtoul(buf, NULL, 0);
	92	if (local->ops->set_tsf) {
24487981	93	drv_set_tsf(local, tsf);
3b5d665b AF	94	printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
	95	}
	96	}
	97
	98	return count;
	99	}
	100
	101	static const struct file_operations tsf_ops = {
	102	.read = tsf_read,
	103	.write = tsf_write,
	104	.open = mac80211_open_file_generic
	105	};
e9f207f0	106
827b1fb4 JB	107	static ssize_t reset_write(struct file file, const char __user user_buf,
	108	size_t count, loff_t *ppos)
	109	{
	110	struct ieee80211_local *local = file->private_data;
	111
	112	rtnl_lock();
	113	__ieee80211_suspend(&local->hw);
	114	__ieee80211_resume(&local->hw);
	115	rtnl_unlock();
	116
	117	return count;
	118	}
	119
	120	static const struct file_operations reset_ops = {
	121	.write = reset_write,
	122	.open = mac80211_open_file_generic,
	123	};
	124
d3707d99 JB	125	static ssize_t noack_read(struct file file, char __user user_buf,
	126	size_t count, loff_t *ppos)
	127	{
	128	struct ieee80211_local *local = file->private_data;
	129	int res;
	130	char buf[10];
	131
	132	res = scnprintf(buf, sizeof(buf), "%d\n", local->wifi_wme_noack_test);
	133
	134	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	135	}
	136
	137	static ssize_t noack_write(struct file *file,
	138	const char __user *user_buf,
	139	size_t count, loff_t *ppos)
	140	{
	141	struct ieee80211_local *local = file->private_data;
	142	char buf[10];
	143	size_t len;
	144
	145	len = min(count, sizeof(buf) - 1);
	146	if (copy_from_user(buf, user_buf, len))
	147	return -EFAULT;
	148	buf[len] = '\0';
	149
	150	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
	151
	152	return count;
	153	}
	154
	155	static const struct file_operations noack_ops = {
	156	.read = noack_read,
	157	.write = noack_write,
	158	.open = mac80211_open_file_generic
	159	};
	160
50ae0cf1 KV	161	static ssize_t uapsd_queues_read(struct file file, char __user user_buf,
	162	size_t count, loff_t *ppos)
	163	{
	164	struct ieee80211_local *local = file->private_data;
	165	int res;
	166	char buf[10];
	167
	168	res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_queues);
	169
	170	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	171	}
	172
	173	static ssize_t uapsd_queues_write(struct file *file,
	174	const char __user *user_buf,
	175	size_t count, loff_t *ppos)
	176	{
	177	struct ieee80211_local *local = file->private_data;
	178	unsigned long val;
	179	char buf[10];
	180	size_t len;
	181	int ret;
	182
	183	len = min(count, sizeof(buf) - 1);
	184	if (copy_from_user(buf, user_buf, len))
	185	return -EFAULT;
	186	buf[len] = '\0';
	187
	188	ret = strict_strtoul(buf, 0, &val);
	189
	190	if (ret)
	191	return -EINVAL;
	192
	193	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
	194	return -ERANGE;
	195
	196	local->uapsd_queues = val;
	197
	198	return count;
	199	}
	200
	201	static const struct file_operations uapsd_queues_ops = {
	202	.read = uapsd_queues_read,
	203	.write = uapsd_queues_write,
	204	.open = mac80211_open_file_generic
	205	};
	206
	207	static ssize_t uapsd_max_sp_len_read(struct file file, char __user user_buf,
	208	size_t count, loff_t *ppos)
	209	{
	210	struct ieee80211_local *local = file->private_data;
	211	int res;
	212	char buf[10];
	213
	214	res = scnprintf(buf, sizeof(buf), "0x%x\n", local->uapsd_max_sp_len);
	215
	216	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	217	}
	218
	219	static ssize_t uapsd_max_sp_len_write(struct file *file,
	220	const char __user *user_buf,
	221	size_t count, loff_t *ppos)
	222	{
	223	struct ieee80211_local *local = file->private_data;
	224	unsigned long val;
225	char buf[10];
226	size_t len;
227	int ret;
228
229	len = min(count, sizeof(buf) - 1);
230	if (copy_from_user(buf, user_buf, len))
231	return -EFAULT;
232	buf[len] = '\0';
233
234	ret = strict_strtoul(buf, 0, &val);
235
236	if (ret)
237	return -EINVAL;
238
239	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
240	return -ERANGE;
241
242	local->uapsd_max_sp_len = val;
243
244	return count;
245	}
246
247	static const struct file_operations uapsd_max_sp_len_ops = {
248	.read = uapsd_max_sp_len_read,
249	.write = uapsd_max_sp_len_write,
250	.open = mac80211_open_file_generic
251	};
252
199d69f2 BP	253	static ssize_t channel_type_read(struct file file, char __user user_buf,
	254	size_t count, loff_t *ppos)
	255	{
	256	struct ieee80211_local *local = file->private_data;
	257	const char *buf;
	258
	259	switch (local->hw.conf.channel_type) {
	260	case NL80211_CHAN_NO_HT:
	261	buf = "no ht\n";
	262	break;
	263	case NL80211_CHAN_HT20:
	264	buf = "ht20\n";
	265	break;
	266	case NL80211_CHAN_HT40MINUS:
	267	buf = "ht40-\n";
	268	break;
	269	case NL80211_CHAN_HT40PLUS:
	270	buf = "ht40+\n";
	271	break;
	272	default:
	273	buf = "???";
	274	break;
	275	}
	276
	277	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	278	}
	279
	280	static const struct file_operations channel_type_ops = {
	281	.read = channel_type_read,
	282	.open = mac80211_open_file_generic
	283	};
	284
db2e6bd4 JB	285	static ssize_t queues_read(struct file file, char __user user_buf,
	286	size_t count, loff_t *ppos)
	287	{
	288	struct ieee80211_local *local = file->private_data;
	289	unsigned long flags;
	290	char buf[IEEE80211_MAX_QUEUES * 20];
	291	int q, res = 0;
	292
	293	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	294	for (q = 0; q < local->hw.queues; q++)
	295	res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
	296	local->queue_stop_reasons[q],
3b8d81e0	297	skb_queue_len(&local->pending[q]));
db2e6bd4 JB	298	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
	299
	300	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	301	}
	302
	303	static const struct file_operations queues_ops = {
	304	.read = queues_read,
	305	.open = mac80211_open_file_generic
	306	};
	307
e9f207f0 JB	308	/* statistics stuff */
e9f207f0 JB	309
e9f207f0 JB	310	#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
	311	DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
	312
	313	static ssize_t format_devstat_counter(struct ieee80211_local *local,
	314	char __user *userbuf,
	315	size_t count, loff_t *ppos,
	316	int (printvalue)(struct ieee80211_low_level_stats stats, char *buf,
	317	int buflen))
	318	{
	319	struct ieee80211_low_level_stats stats;
	320	char buf[20];
	321	int res;
	322
75636525	323	rtnl_lock();
24487981	324	res = drv_get_stats(local, &stats);
e9f207f0	325	rtnl_unlock();
24487981 JB	326	if (res)
	327	return res;
	328	res = printvalue(&stats, buf, sizeof(buf));
e9f207f0 JB	329	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	330	}
	331
	332	#define DEBUGFS_DEVSTATS_FILE(name) \
	333	static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
	334	char *buf, int buflen) \
	335	{ \
	336	return scnprintf(buf, buflen, "%u\n", stats->name); \
	337	} \
	338	static ssize_t stats_ ##name## _read(struct file *file, \
	339	char __user *userbuf, \
	340	size_t count, loff_t *ppos) \
	341	{ \
	342	return format_devstat_counter(file->private_data, \
	343	userbuf, \
	344	count, \
	345	ppos, \
	346	print_devstats_##name); \
	347	} \
	348	\
	349	static const struct file_operations stats_ ##name## _ops = { \
	350	.read = stats_ ##name## _read, \
	351	.open = mac80211_open_file_generic, \
	352	};
	353
	354	#define DEBUGFS_STATS_ADD(name) \
7bcfaf2f	355	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
e9f207f0 JB	356
	357	DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
	358	local->dot11TransmittedFragmentCount);
	359	DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
	360	local->dot11MulticastTransmittedFrameCount);
	361	DEBUGFS_STATS_FILE(failed_count, 20, "%u",
	362	local->dot11FailedCount);
	363	DEBUGFS_STATS_FILE(retry_count, 20, "%u",
	364	local->dot11RetryCount);
	365	DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
	366	local->dot11MultipleRetryCount);
	367	DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
	368	local->dot11FrameDuplicateCount);
	369	DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
	370	local->dot11ReceivedFragmentCount);
	371	DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
	372	local->dot11MulticastReceivedFrameCount);
	373	DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
	374	local->dot11TransmittedFrameCount);
e9f207f0 JB	375	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	376	DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
	377	local->tx_handlers_drop);
	378	DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
	379	local->tx_handlers_queued);
	380	DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
	381	local->tx_handlers_drop_unencrypted);
	382	DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
	383	local->tx_handlers_drop_fragment);
	384	DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
	385	local->tx_handlers_drop_wep);
	386	DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
	387	local->tx_handlers_drop_not_assoc);
	388	DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
	389	local->tx_handlers_drop_unauth_port);
	390	DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
	391	local->rx_handlers_drop);
	392	DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
	393	local->rx_handlers_queued);
	394	DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
	395	local->rx_handlers_drop_nullfunc);
	396	DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
	397	local->rx_handlers_drop_defrag);
	398	DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
	399	local->rx_handlers_drop_short);
	400	DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
	401	local->rx_handlers_drop_passive_scan);
	402	DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
	403	local->tx_expand_skb_head);
	404	DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
	405	local->tx_expand_skb_head_cloned);
	406	DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
	407	local->rx_expand_skb_head);
	408	DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
	409	local->rx_expand_skb_head2);
	410	DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
	411	local->rx_handlers_fragments);
	412	DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
	413	local->tx_status_drop);
	414
e9f207f0 JB	415	#endif
	416
	417	DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
	418	DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
	419	DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
	420	DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
	421
	422
	423	void debugfs_hw_add(struct ieee80211_local *local)
	424	{
	425	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	426	struct dentry *statsd;
	427
	428	if (!phyd)
	429	return;
	430
	431	local->debugfs.stations = debugfs_create_dir("stations", phyd);
	432	local->debugfs.keys = debugfs_create_dir("keys", phyd);
	433
e9f207f0	434	DEBUGFS_ADD(frequency);
e9f207f0	435	DEBUGFS_ADD(total_ps_buffered);
e9f207f0	436	DEBUGFS_ADD(wep_iv);
ae54c985	437	DEBUGFS_ADD(tsf);
db2e6bd4	438	DEBUGFS_ADD(queues);
827b1fb4	439	DEBUGFS_ADD_MODE(reset, 0200);
d3707d99	440	DEBUGFS_ADD(noack);
50ae0cf1 KV	441	DEBUGFS_ADD(uapsd_queues);
50ae0cf1 KV	442	DEBUGFS_ADD(uapsd_max_sp_len);
199d69f2	443	DEBUGFS_ADD(channel_type);
e9f207f0 JB	444
e9f207f0 JB	445	statsd = debugfs_create_dir("statistics", phyd);
e9f207f0 JB	446
	447	/* if the dir failed, don't put all the other things into the root! */
	448	if (!statsd)
	449	return;
	450
	451	DEBUGFS_STATS_ADD(transmitted_fragment_count);
	452	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
	453	DEBUGFS_STATS_ADD(failed_count);
	454	DEBUGFS_STATS_ADD(retry_count);
	455	DEBUGFS_STATS_ADD(multiple_retry_count);
	456	DEBUGFS_STATS_ADD(frame_duplicate_count);
	457	DEBUGFS_STATS_ADD(received_fragment_count);
	458	DEBUGFS_STATS_ADD(multicast_received_frame_count);
	459	DEBUGFS_STATS_ADD(transmitted_frame_count);
e9f207f0 JB	460	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
	461	DEBUGFS_STATS_ADD(tx_handlers_drop);
	462	DEBUGFS_STATS_ADD(tx_handlers_queued);
	463	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
	464	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
	465	DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
	466	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
	467	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
	468	DEBUGFS_STATS_ADD(rx_handlers_drop);
	469	DEBUGFS_STATS_ADD(rx_handlers_queued);
	470	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
	471	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
	472	DEBUGFS_STATS_ADD(rx_handlers_drop_short);
	473	DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
	474	DEBUGFS_STATS_ADD(tx_expand_skb_head);
	475	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
	476	DEBUGFS_STATS_ADD(rx_expand_skb_head);
	477	DEBUGFS_STATS_ADD(rx_expand_skb_head2);
	478	DEBUGFS_STATS_ADD(rx_handlers_fragments);
	479	DEBUGFS_STATS_ADD(tx_status_drop);
e9f207f0 JB	480	#endif
	481	DEBUGFS_STATS_ADD(dot11ACKFailureCount);
	482	DEBUGFS_STATS_ADD(dot11RTSFailureCount);
	483	DEBUGFS_STATS_ADD(dot11FCSErrorCount);
	484	DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
	485	}