Commit 2f8c8e62 authored by Rafał Miłecki's avatar Rafał Miłecki Committed by Kalle Valo

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
......@@ -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);
......
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