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Commit 90fcba65 authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: add VHT capabilities station debugfs file 



Add a new debugfs file to view a station's VHT capabilities.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 55d942f4

net/mac80211/debugfs_sta.c

+31 −0
Original line number Original line Diff line number Diff line
@@ -325,6 +325,36 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf, 
}

}

STA_OPS(ht_capa);

STA_OPS(ht_capa);





static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,

				 size_t count, loff_t *ppos)

{

	char buf[128], *p = buf;

	struct sta_info *sta = file->private_data;

	struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;



	p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",

			vhtc->vht_supported ? "" : "not ");

	if (vhtc->vht_supported) {

		p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap);



		p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",

			       le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));

		if (vhtc->vht_mcs.rx_highest)

			p += scnprintf(p, sizeof(buf)+buf-p,

				       "MCS RX highest: %d Mbps\n",

				       le16_to_cpu(vhtc->vht_mcs.rx_highest));

		p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",

			       le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));

		if (vhtc->vht_mcs.tx_highest)

			p += scnprintf(p, sizeof(buf)+buf-p,

				       "MCS TX highest: %d Mbps\n",

				       le16_to_cpu(vhtc->vht_mcs.tx_highest));

	}



	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);

}

STA_OPS(vht_capa);



static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,

static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,

					size_t count, loff_t *ppos)

					size_t count, loff_t *ppos)

{

{
@@ -405,6 +435,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta) 
	DEBUGFS_ADD(dev);

	DEBUGFS_ADD(dev);

	DEBUGFS_ADD(last_signal);

	DEBUGFS_ADD(last_signal);

	DEBUGFS_ADD(ht_capa);

	DEBUGFS_ADD(ht_capa);

	DEBUGFS_ADD(vht_capa);

	DEBUGFS_ADD(last_ack_signal);

	DEBUGFS_ADD(last_ack_signal);

	DEBUGFS_ADD(current_tx_rate);

	DEBUGFS_ADD(current_tx_rate);

	DEBUGFS_ADD(last_rx_rate);

	DEBUGFS_ADD(last_rx_rate);