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Commit 2f8c8e62 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Kalle Valo
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brcmfmac: add "reset" debugfs entry for testing reset 



This is a trivial debugfs entry for triggering reset just like in case
of firmware crash. It works by writing 1 to it:
echo 1 > reset

Signed-off-by: default avatarRafał Miłecki <rafal@milecki.pl>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent cb34212b

drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c

+25 −0
Original line number Diff line number Diff line
@@ -1086,6 +1086,29 @@ static void brcmf_core_bus_reset(struct work_struct *work) 
	brcmf_bus_reset(drvr->bus_if);

}



static ssize_t bus_reset_write(struct file *file, const char __user *user_buf,

			       size_t count, loff_t *ppos)

{

	struct brcmf_pub *drvr = file->private_data;

	u8 value;



	if (kstrtou8_from_user(user_buf, count, 0, &value))

		return -EINVAL;



	if (value != 1)

		return -EINVAL;



	schedule_work(&drvr->bus_reset);



	return count;

}



static const struct file_operations bus_reset_fops = {

	.open	= simple_open,

	.llseek	= no_llseek,

	.write	= bus_reset_write,

};



static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops)

{

	int ret = -1;
@@ -1161,6 +1184,8 @@ static int brcmf_bus_started(struct brcmf_pub *drvr, struct cfg80211_ops *ops) 


	/* populate debugfs */

	brcmf_debugfs_add_entry(drvr, "revinfo", brcmf_revinfo_read);

	debugfs_create_file("reset", 0600, brcmf_debugfs_get_devdir(drvr), drvr,

			    &bus_reset_fops);

	brcmf_feat_debugfs_create(drvr);

	brcmf_proto_debugfs_create(drvr);

	brcmf_bus_debugfs_create(bus_if);