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Commit 279daf64 authored by Ben Greear's avatar Ben Greear Committed by John W. Linville
Browse files

wifi: Add hwflags to debugfs. 



Aids debugging wifi behaviour.

Signed-off-by: default avatarBen Greear <greearb@candelatech.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 1c0ce89c

net/mac80211/debugfs.c

+76 −13
Original line number Diff line number Diff line
@@ -37,7 +37,7 @@ int mac80211_format_buffer(char __user *userbuf, size_t count, 
	return simple_read_from_buffer(userbuf, count, ppos, buf, res);

}



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

#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)			\

{									\
@@ -45,14 +45,19 @@ static ssize_t name## _read(struct file *file, char __user *userbuf, \ 
									\

	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);
@@ -291,11 +296,70 @@ static ssize_t channel_type_read(struct file *file, char __user *user_buf, 
	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,

	.llseek = default_llseek,

};

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)
@@ -315,11 +379,9 @@ static ssize_t queues_read(struct file *file, char __user *user_buf, 
	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,

	.llseek = default_llseek,

};

DEBUGFS_READONLY_FILE_OPS(hwflags);

DEBUGFS_READONLY_FILE_OPS(channel_type);

DEBUGFS_READONLY_FILE_OPS(queues);



/* statistics stuff */
@@ -395,6 +457,7 @@ void debugfs_hw_add(struct ieee80211_local *local) 
	DEBUGFS_ADD(uapsd_queues);

	DEBUGFS_ADD(uapsd_max_sp_len);

	DEBUGFS_ADD(channel_type);

	DEBUGFS_ADD(hwflags);

	DEBUGFS_ADD(user_power);

	DEBUGFS_ADD(power);