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Commit 0b39aaf2 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: Tx mgmt frame from debugfs 



Provide 2 files on the debugfs:
- "rxon": write channel (1..4) to open Rx on it, 0 to rxoff
- "tx_mgmt": write binary frame, starting from MAC header

one need to care about turning receiver on/off before/after tx_mgmt

Correct sequence is:
 echo $channel > rxon
 cat mfmt_frame > tx_mgmt
 echo 0 > rxon

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent e8c58e7a

drivers/net/wireless/ath/wil6210/cfg80211.c

+3 −4
Original line number Diff line number Diff line
@@ -443,8 +443,7 @@ static int wil_cfg80211_disconnect(struct wiphy *wiphy, 
	return rc;

}



static int wil_cfg80211_mgmt_tx(struct wiphy *wiphy,

				struct wireless_dev *wdev,

int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,

			 struct cfg80211_mgmt_tx_params *params,

			 u64 *cookie)

{

drivers/net/wireless/ath/wil6210/debugfs.c

+80 −0
Original line number Diff line number Diff line
@@ -397,6 +397,84 @@ static const struct file_operations fops_reset = { 
	.write = wil_write_file_reset,

	.open  = simple_open,

};

/*---write channel 1..4 to rxon for it, 0 to rxoff---*/

static ssize_t wil_write_file_rxon(struct file *file, const char __user *buf,

				   size_t len, loff_t *ppos)

{

	struct wil6210_priv *wil = file->private_data;

	int rc;

	long channel;

	bool on;



	char *kbuf = kmalloc(len + 1, GFP_KERNEL);

	if (!kbuf)

		return -ENOMEM;

	if (copy_from_user(kbuf, buf, len))

		return -EIO;



	kbuf[len] = '\0';

	rc = kstrtol(kbuf, 0, &channel);

	kfree(kbuf);

	if (rc)

		return rc;



	if ((channel < 0) || (channel > 4)) {

		wil_err(wil, "Invalid channel %ld\n", channel);

		return -EINVAL;

	}

	on = !!channel;



	if (on) {

		rc = wmi_set_channel(wil, (int)channel);

		if (rc)

			return rc;

	}



	rc = wmi_rxon(wil, on);

	if (rc)

		return rc;



	return len;

}



static const struct file_operations fops_rxon = {

	.write = wil_write_file_rxon,

	.open  = simple_open,

};

/*---tx_mgmt---*/

/* Write mgmt frame to this file to send it */

static ssize_t wil_write_file_txmgmt(struct file *file, const char __user *buf,

				     size_t len, loff_t *ppos)

{

	struct wil6210_priv *wil = file->private_data;

	struct wiphy *wiphy = wil_to_wiphy(wil);

	struct wireless_dev *wdev = wil_to_wdev(wil);

	struct cfg80211_mgmt_tx_params params;

	int rc;



	void *frame = kmalloc(len, GFP_KERNEL);

	if (!frame)

		return -ENOMEM;



	if (copy_from_user(frame, buf, len))

		return -EIO;



	params.buf = frame;

	params.len = len;

	params.chan = wdev->preset_chandef.chan;



	rc = wil_cfg80211_mgmt_tx(wiphy, wdev, &params, NULL);



	kfree(frame);

	wil_info(wil, "%s() -> %d\n", __func__, rc);



	return len;

}



static const struct file_operations fops_txmgmt = {

	.write = wil_write_file_txmgmt,

	.open  = simple_open,

};



static void wil_seq_hexdump(struct seq_file *s, void *p, int len,

			    const char *prefix)
@@ -719,6 +797,8 @@ int wil6210_debugfs_init(struct wil6210_priv *wil) 
	debugfs_create_file("mem_val", S_IRUGO, dbg, wil, &fops_memread);



	debugfs_create_file("reset", S_IWUSR, dbg, wil, &fops_reset);

	debugfs_create_file("rxon", S_IWUSR, dbg, wil, &fops_rxon);

	debugfs_create_file("tx_mgmt", S_IWUSR, dbg, wil, &fops_txmgmt);

	debugfs_create_file("temp", S_IRUGO, dbg, wil, &fops_temp);



	wil->rgf_blob.data = (void * __force)wil->csr + 0;

drivers/net/wireless/ath/wil6210/wil6210.h

+3 −0
Original line number Diff line number Diff line
@@ -504,6 +504,9 @@ int wil6210_init_irq(struct wil6210_priv *wil, int irq); 
void wil6210_fini_irq(struct wil6210_priv *wil, int irq);

void wil6210_disable_irq(struct wil6210_priv *wil);

void wil6210_enable_irq(struct wil6210_priv *wil);

int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,

			 struct cfg80211_mgmt_tx_params *params,

			 u64 *cookie);



int wil6210_debugfs_init(struct wil6210_priv *wil);

void wil6210_debugfs_remove(struct wil6210_priv *wil);