[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"

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

#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 = mac80211_open_file_generic,				\
	.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 tsf_read(struct file *file, char __user *user_buf,
			     size_t count, loff_t *ppos)
{
	struct ieee80211_local *local = file->private_data;
	u64 tsf;

	tsf = drv_get_tsf(local);

	return mac80211_format_buffer(user_buf, count, ppos, "0x%016llx\n",
				      (unsigned long long) tsf);
}

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);
			wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
		}
	} else {
		tsf = simple_strtoul(buf, NULL, 0);
		if (local->ops->set_tsf) {
			drv_set_tsf(local, tsf);
			wiphy_info(local->hw.wiphy,
				   "debugfs set TSF to %#018llx\n", tsf);

		}
	}

	return count;
}

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

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 = mac80211_open_file_generic,
	.llseek = noop_llseek,
};

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;

	return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
				      local->wifi_wme_noack_test);
}

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,
	.llseek = default_llseek,
};

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;
	return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
				      local->uapsd_queues);
}

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,
	.llseek = default_llseek,
};

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;

	return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
				      local->uapsd_max_sp_len);
}

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,
	.llseek = default_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 */

	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_BEACON_FILTER)
		sf += snprintf(buf + sf, mxln - sf, "BEACON_FILTER\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_CQM_RSSI)
		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_CQM_RSSI\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");

	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 = mac80211_open_file_generic,				\
	.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(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);
	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(rx_handlers_drop_passive_scan,
		local->rx_handlers_drop_passive_scan);
	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"
	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
07caf9d6 EP	24	#define DEBUGFS_FORMAT_BUFFER_SIZE 100
	25
	26	int mac80211_format_buffer(char __user *userbuf, size_t count,
	27	loff_t ppos, char fmt, ...)
	28	{
	29	va_list args;
	30	char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
	31	int res;
	32
	33	va_start(args, fmt);
	34	res = vscnprintf(buf, sizeof(buf), fmt, args);
	35	va_end(args);
	36
	37	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	38	}
	39
279daf64	40	#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
e9f207f0 JB	41	static ssize_t name## _read(struct file file, char __user userbuf, \
	42	size_t count, loff_t *ppos) \
	43	{ \
	44	struct ieee80211_local *local = file->private_data; \
e9f207f0	45	\
07caf9d6 EP	46	return mac80211_format_buffer(userbuf, count, ppos, \
07caf9d6 EP	47	fmt "\n", ##value); \
279daf64 BG	48	}
	49
	50	#define DEBUGFS_READONLY_FILE_OPS(name) \
e9f207f0 JB	51	static const struct file_operations name## _ops = { \
	52	.read = name## _read, \
	53	.open = mac80211_open_file_generic, \
2b18ab36	54	.llseek = generic_file_llseek, \
e9f207f0 JB	55	};
e9f207f0 JB	56
279daf64 BG	57	#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
	58	DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
	59	DEBUGFS_READONLY_FILE_OPS(name)
	60
e9f207f0	61	#define DEBUGFS_ADD(name) \
7bcfaf2f	62	debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
e9f207f0	63
827b1fb4	64	#define DEBUGFS_ADD_MODE(name, mode) \
7bcfaf2f	65	debugfs_create_file(#name, mode, phyd, local, &name## _ops);
e9f207f0 JB	66
e9f207f0 JB	67
83bdf2a1 BG	68	DEBUGFS_READONLY_FILE(user_power, "%d",
	69	local->user_power_level);
	70	DEBUGFS_READONLY_FILE(power, "%d",
	71	local->hw.conf.power_level);
07caf9d6	72	DEBUGFS_READONLY_FILE(frequency, "%d",
8318d78a	73	local->hw.conf.channel->center_freq);
07caf9d6	74	DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
e9f207f0	75	local->total_ps_buffered);
07caf9d6	76	DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
e9f207f0	77	local->wep_iv & 0xffffff);
07caf9d6	78	DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
af65cd96	79	local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
3b5d665b AF	80
	81	static ssize_t tsf_read(struct file file, char __user user_buf,
	82	size_t count, loff_t *ppos)
	83	{
	84	struct ieee80211_local *local = file->private_data;
24487981	85	u64 tsf;
3b5d665b	86
24487981	87	tsf = drv_get_tsf(local);
3b5d665b	88
07caf9d6 EP	89	return mac80211_format_buffer(user_buf, count, ppos, "0x%016llx\n",
07caf9d6 EP	90	(unsigned long long) tsf);
3b5d665b AF	91	}
	92
	93	static ssize_t tsf_write(struct file *file,
	94	const char __user *user_buf,
	95	size_t count, loff_t *ppos)
	96	{
	97	struct ieee80211_local *local = file->private_data;
	98	unsigned long long tsf;
	99	char buf[100];
	100	size_t len;
	101
	102	len = min(count, sizeof(buf) - 1);
	103	if (copy_from_user(buf, user_buf, len))
	104	return -EFAULT;
	105	buf[len] = '\0';
	106
	107	if (strncmp(buf, "reset", 5) == 0) {
	108	if (local->ops->reset_tsf) {
24487981	109	drv_reset_tsf(local);
0fb9a9ec	110	wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
3b5d665b AF	111	}
	112	} else {
	113	tsf = simple_strtoul(buf, NULL, 0);
	114	if (local->ops->set_tsf) {
24487981	115	drv_set_tsf(local, tsf);
0fb9a9ec JP	116	wiphy_info(local->hw.wiphy,
	117	"debugfs set TSF to %#018llx\n", tsf);
	118
3b5d665b AF	119	}
	120	}
	121
	122	return count;
	123	}
	124
	125	static const struct file_operations tsf_ops = {
	126	.read = tsf_read,
	127	.write = tsf_write,
6038f373 AB	128	.open = mac80211_open_file_generic,
6038f373 AB	129	.llseek = default_llseek,
3b5d665b	130	};
e9f207f0	131
827b1fb4 JB	132	static ssize_t reset_write(struct file file, const char __user user_buf,
	133	size_t count, loff_t *ppos)
	134	{
	135	struct ieee80211_local *local = file->private_data;
	136
	137	rtnl_lock();
eecc4800	138	__ieee80211_suspend(&local->hw, NULL);
827b1fb4 JB	139	__ieee80211_resume(&local->hw);
	140	rtnl_unlock();
	141
	142	return count;
	143	}
	144
	145	static const struct file_operations reset_ops = {
	146	.write = reset_write,
	147	.open = mac80211_open_file_generic,
6038f373	148	.llseek = noop_llseek,
827b1fb4 JB	149	};
827b1fb4 JB	150
d3707d99 JB	151	static ssize_t noack_read(struct file file, char __user user_buf,
	152	size_t count, loff_t *ppos)
	153	{
	154	struct ieee80211_local *local = file->private_data;
d3707d99	155
07caf9d6 EP	156	return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
07caf9d6 EP	157	local->wifi_wme_noack_test);
d3707d99 JB	158	}
	159
	160	static ssize_t noack_write(struct file *file,
	161	const char __user *user_buf,
	162	size_t count, loff_t *ppos)
	163	{
	164	struct ieee80211_local *local = file->private_data;
	165	char buf[10];
	166	size_t len;
	167
	168	len = min(count, sizeof(buf) - 1);
	169	if (copy_from_user(buf, user_buf, len))
	170	return -EFAULT;
	171	buf[len] = '\0';
	172
	173	local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
	174
	175	return count;
	176	}
	177
	178	static const struct file_operations noack_ops = {
	179	.read = noack_read,
	180	.write = noack_write,
6038f373 AB	181	.open = mac80211_open_file_generic,
6038f373 AB	182	.llseek = default_llseek,
d3707d99 JB	183	};
d3707d99 JB	184
50ae0cf1 KV	185	static ssize_t uapsd_queues_read(struct file file, char __user user_buf,
	186	size_t count, loff_t *ppos)
	187	{
	188	struct ieee80211_local *local = file->private_data;
07caf9d6 EP	189	return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
07caf9d6 EP	190	local->uapsd_queues);
50ae0cf1 KV	191	}
	192
	193	static ssize_t uapsd_queues_write(struct file *file,
	194	const char __user *user_buf,
	195	size_t count, loff_t *ppos)
	196	{
	197	struct ieee80211_local *local = file->private_data;
	198	unsigned long val;
	199	char buf[10];
	200	size_t len;
	201	int ret;
	202
	203	len = min(count, sizeof(buf) - 1);
	204	if (copy_from_user(buf, user_buf, len))
	205	return -EFAULT;
	206	buf[len] = '\0';
	207
	208	ret = strict_strtoul(buf, 0, &val);
	209
	210	if (ret)
	211	return -EINVAL;
	212
	213	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
	214	return -ERANGE;
	215
	216	local->uapsd_queues = val;
	217
	218	return count;
	219	}
	220
	221	static const struct file_operations uapsd_queues_ops = {
	222	.read = uapsd_queues_read,
	223	.write = uapsd_queues_write,
6038f373 AB	224	.open = mac80211_open_file_generic,
6038f373 AB	225	.llseek = default_llseek,
50ae0cf1 KV	226	};
	227
	228	static ssize_t uapsd_max_sp_len_read(struct file file, char __user user_buf,
	229	size_t count, loff_t *ppos)
	230	{
	231	struct ieee80211_local *local = file->private_data;
50ae0cf1	232
07caf9d6 EP	233	return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
07caf9d6 EP	234	local->uapsd_max_sp_len);
50ae0cf1 KV	235	}
	236
	237	static ssize_t uapsd_max_sp_len_write(struct file *file,
	238	const char __user *user_buf,
	239	size_t count, loff_t *ppos)
	240	{
	241	struct ieee80211_local *local = file->private_data;
	242	unsigned long val;
	243	char buf[10];
	244	size_t len;
	245	int ret;
	246
	247	len = min(count, sizeof(buf) - 1);
	248	if (copy_from_user(buf, user_buf, len))
	249	return -EFAULT;
	250	buf[len] = '\0';
	251
	252	ret = strict_strtoul(buf, 0, &val);
	253
	254	if (ret)
	255	return -EINVAL;
	256
	257	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
	258	return -ERANGE;
	259
	260	local->uapsd_max_sp_len = val;
	261
	262	return count;
	263	}
	264
	265	static const struct file_operations uapsd_max_sp_len_ops = {
	266	.read = uapsd_max_sp_len_read,
	267	.write = uapsd_max_sp_len_write,
6038f373 AB	268	.open = mac80211_open_file_generic,
6038f373 AB	269	.llseek = default_llseek,
50ae0cf1 KV	270	};
50ae0cf1 KV	271
199d69f2 BP	272	static ssize_t channel_type_read(struct file file, char __user user_buf,
	273	size_t count, loff_t *ppos)
	274	{
	275	struct ieee80211_local *local = file->private_data;
	276	const char *buf;
	277
	278	switch (local->hw.conf.channel_type) {
	279	case NL80211_CHAN_NO_HT:
	280	buf = "no ht\n";
	281	break;
	282	case NL80211_CHAN_HT20:
	283	buf = "ht20\n";
	284	break;
	285	case NL80211_CHAN_HT40MINUS:
	286	buf = "ht40-\n";
	287	break;
	288	case NL80211_CHAN_HT40PLUS:
	289	buf = "ht40+\n";
	290	break;
	291	default:
	292	buf = "???";
	293	break;
	294	}
	295
	296	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	297	}
	298
279daf64 BG	299	static ssize_t hwflags_read(struct file file, char __user user_buf,
	300	size_t count, loff_t *ppos)
	301	{
	302	struct ieee80211_local *local = file->private_data;
	303	int mxln = 500;
	304	ssize_t rv;
	305	char *buf = kzalloc(mxln, GFP_KERNEL);
	306	int sf = 0; /* how many written so far */
	307
	308	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
	309	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
	310	sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
	311	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
	312	sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
	313	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
	314	sf += snprintf(buf + sf, mxln - sf,
	315	"HOST_BCAST_PS_BUFFERING\n");
	316	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
	317	sf += snprintf(buf + sf, mxln - sf,
	318	"2GHZ_SHORT_SLOT_INCAPABLE\n");
	319	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
	320	sf += snprintf(buf + sf, mxln - sf,
	321	"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
	322	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
	323	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
	324	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
	325	sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
	326	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
	327	sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n");
	328	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
	329	sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
	330	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
	331	sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
	332	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
	333	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
	334	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
	335	sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
	336	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
	337	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
	338	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
	339	sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
	340	if (local->hw.flags & IEEE80211_HW_BEACON_FILTER)
	341	sf += snprintf(buf + sf, mxln - sf, "BEACON_FILTER\n");
	342	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
	343	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
	344	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
	345	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
	346	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
	347	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
	348	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
	349	sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
	350	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
	351	sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
	352	if (local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)
	353	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_CQM_RSSI\n");
	354	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
	355	sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
	356	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
	357	sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
	358
	359	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
	360	kfree(buf);
	361	return rv;
	362	}
199d69f2	363
db2e6bd4 JB	364	static ssize_t queues_read(struct file file, char __user user_buf,
	365	size_t count, loff_t *ppos)
	366	{
	367	struct ieee80211_local *local = file->private_data;
	368	unsigned long flags;
	369	char buf[IEEE80211_MAX_QUEUES * 20];
	370	int q, res = 0;
	371
	372	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
	373	for (q = 0; q < local->hw.queues; q++)
	374	res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
	375	local->queue_stop_reasons[q],
3b8d81e0	376	skb_queue_len(&local->pending[q]));
db2e6bd4 JB	377	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
	378
	379	return simple_read_from_buffer(user_buf, count, ppos, buf, res);
	380	}
	381
279daf64 BG	382	DEBUGFS_READONLY_FILE_OPS(hwflags);
	383	DEBUGFS_READONLY_FILE_OPS(channel_type);
	384	DEBUGFS_READONLY_FILE_OPS(queues);
db2e6bd4	385
e9f207f0 JB	386	/* statistics stuff */
e9f207f0 JB	387
e9f207f0 JB	388	static ssize_t format_devstat_counter(struct ieee80211_local *local,
	389	char __user *userbuf,
	390	size_t count, loff_t *ppos,
	391	int (printvalue)(struct ieee80211_low_level_stats stats, char *buf,
	392	int buflen))
	393	{
	394	struct ieee80211_low_level_stats stats;
	395	char buf[20];
	396	int res;
	397
75636525	398	rtnl_lock();
24487981	399	res = drv_get_stats(local, &stats);
e9f207f0	400	rtnl_unlock();
24487981 JB	401	if (res)
	402	return res;
	403	res = printvalue(&stats, buf, sizeof(buf));
e9f207f0 JB	404	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
	405	}
	406
	407	#define DEBUGFS_DEVSTATS_FILE(name) \
	408	static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
	409	char *buf, int buflen) \
	410	{ \
	411	return scnprintf(buf, buflen, "%u\n", stats->name); \
	412	} \
	413	static ssize_t stats_ ##name## _read(struct file *file, \
	414	char __user *userbuf, \
	415	size_t count, loff_t *ppos) \
	416	{ \
	417	return format_devstat_counter(file->private_data, \
	418	userbuf, \
	419	count, \
	420	ppos, \
	421	print_devstats_##name); \
	422	} \
	423	\
	424	static const struct file_operations stats_ ##name## _ops = { \
	425	.read = stats_ ##name## _read, \
	426	.open = mac80211_open_file_generic, \
2b18ab36	427	.llseek = generic_file_llseek, \
e9f207f0 JB	428	};
e9f207f0 JB	429
2826bcd8 FF	430	#define DEBUGFS_STATS_ADD(name, field) \
	431	debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
	432	#define DEBUGFS_DEVSTATS_ADD(name) \
7bcfaf2f	433	debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
e9f207f0	434
e9f207f0 JB	435	DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
	436	DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
	437	DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
	438	DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
	439
e9f207f0 JB	440	void debugfs_hw_add(struct ieee80211_local *local)
	441	{
	442	struct dentry *phyd = local->hw.wiphy->debugfsdir;
	443	struct dentry *statsd;
	444
	445	if (!phyd)
	446	return;
	447
e9f207f0 JB	448	local->debugfs.keys = debugfs_create_dir("keys", phyd);
e9f207f0 JB	449
e9f207f0	450	DEBUGFS_ADD(frequency);
e9f207f0	451	DEBUGFS_ADD(total_ps_buffered);
e9f207f0	452	DEBUGFS_ADD(wep_iv);
ae54c985	453	DEBUGFS_ADD(tsf);
db2e6bd4	454	DEBUGFS_ADD(queues);
827b1fb4	455	DEBUGFS_ADD_MODE(reset, 0200);
d3707d99	456	DEBUGFS_ADD(noack);
50ae0cf1 KV	457	DEBUGFS_ADD(uapsd_queues);
50ae0cf1 KV	458	DEBUGFS_ADD(uapsd_max_sp_len);
199d69f2	459	DEBUGFS_ADD(channel_type);
279daf64	460	DEBUGFS_ADD(hwflags);
83bdf2a1 BG	461	DEBUGFS_ADD(user_power);
83bdf2a1 BG	462	DEBUGFS_ADD(power);
e9f207f0 JB	463
e9f207f0 JB	464	statsd = debugfs_create_dir("statistics", phyd);
e9f207f0 JB	465
	466	/* if the dir failed, don't put all the other things into the root! */
	467	if (!statsd)
	468	return;
	469
2826bcd8 FF	470	DEBUGFS_STATS_ADD(transmitted_fragment_count,
	471	local->dot11TransmittedFragmentCount);
	472	DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
	473	local->dot11MulticastTransmittedFrameCount);
	474	DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
	475	DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
	476	DEBUGFS_STATS_ADD(multiple_retry_count,
	477	local->dot11MultipleRetryCount);
	478	DEBUGFS_STATS_ADD(frame_duplicate_count,
	479	local->dot11FrameDuplicateCount);
	480	DEBUGFS_STATS_ADD(received_fragment_count,
	481	local->dot11ReceivedFragmentCount);
	482	DEBUGFS_STATS_ADD(multicast_received_frame_count,
	483	local->dot11MulticastReceivedFrameCount);
	484	DEBUGFS_STATS_ADD(transmitted_frame_count,
	485	local->dot11TransmittedFrameCount);
e9f207f0	486	#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
2826bcd8 FF	487	DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
	488	DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
	489	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
	490	local->tx_handlers_drop_unencrypted);
	491	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
	492	local->tx_handlers_drop_fragment);
	493	DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
	494	local->tx_handlers_drop_wep);
	495	DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
	496	local->tx_handlers_drop_not_assoc);
	497	DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
	498	local->tx_handlers_drop_unauth_port);
	499	DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
	500	DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
	501	DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
	502	local->rx_handlers_drop_nullfunc);
	503	DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
	504	local->rx_handlers_drop_defrag);
	505	DEBUGFS_STATS_ADD(rx_handlers_drop_short,
	506	local->rx_handlers_drop_short);
	507	DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan,
	508	local->rx_handlers_drop_passive_scan);
	509	DEBUGFS_STATS_ADD(tx_expand_skb_head,
	510	local->tx_expand_skb_head);
	511	DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
	512	local->tx_expand_skb_head_cloned);
	513	DEBUGFS_STATS_ADD(rx_expand_skb_head,
	514	local->rx_expand_skb_head);
	515	DEBUGFS_STATS_ADD(rx_expand_skb_head2,
	516	local->rx_expand_skb_head2);
	517	DEBUGFS_STATS_ADD(rx_handlers_fragments,
	518	local->rx_handlers_fragments);
	519	DEBUGFS_STATS_ADD(tx_status_drop,
	520	local->tx_status_drop);
e9f207f0	521	#endif
2826bcd8 FF	522	DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
	523	DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
	524	DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
	525	DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
e9f207f0	526	}