ath6kl: Fix listen interval handling
This patch addresses a few problems with the commit:
"ath6kl: Implement support for listen interval from userspace"
* The debugfs file required for reading/writing the listen interval
wasn't created. Fix this.
* The interface index was being hardcoded to zero. Fix this.
* Two separate parameters, "listen_interval_time and listen_interval_beacons"
were being used. This fails to work as expected because the FW assigns
higher precedence to "listen_interval_beacons" and "listen_interval_time"
ends up being never used at all.
To handle this, fix the host driver to exclusively use listen interval
based on units of beacon intervals.
To set the listen interval, a user would now do something like this:
echo "10" > /sys/kernel/debug/ieee80211/*/ath6kl/listen_interval
kvalo: fix two checkpatch warnings
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index eb808b4..fa7243b 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -1505,57 +1505,46 @@
};
static ssize_t ath6kl_listen_int_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
{
struct ath6kl *ar = file->private_data;
- u16 listen_int_t, listen_int_b;
+ struct ath6kl_vif *vif;
+ u16 listen_interval;
char buf[32];
- char *sptr, *token;
ssize_t len;
+ vif = ath6kl_vif_first(ar);
+ if (!vif)
+ return -EIO;
+
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
- sptr = buf;
-
- token = strsep(&sptr, " ");
- if (!token)
+ if (kstrtou16(buf, 0, &listen_interval))
return -EINVAL;
- if (kstrtou16(token, 0, &listen_int_t))
+ if ((listen_interval < 1) || (listen_interval > 50))
return -EINVAL;
- if (kstrtou16(sptr, 0, &listen_int_b))
- return -EINVAL;
-
- if ((listen_int_t < 15) || (listen_int_t > 5000))
- return -EINVAL;
-
- if ((listen_int_b < 1) || (listen_int_b > 50))
- return -EINVAL;
-
- ar->listen_intvl_t = listen_int_t;
- ar->listen_intvl_b = listen_int_b;
-
- ath6kl_wmi_listeninterval_cmd(ar->wmi, 0, ar->listen_intvl_t,
+ ar->listen_intvl_b = listen_interval;
+ ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 0,
ar->listen_intvl_b);
return count;
}
static ssize_t ath6kl_listen_int_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
{
struct ath6kl *ar = file->private_data;
char buf[32];
int len;
- len = scnprintf(buf, sizeof(buf), "%u %u\n", ar->listen_intvl_t,
- ar->listen_intvl_b);
+ len = scnprintf(buf, sizeof(buf), "%u\n", ar->listen_intvl_b);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -1710,6 +1699,9 @@
debugfs_create_file("bgscan_interval", S_IWUSR,
ar->debugfs_phy, ar, &fops_bgscan_int);
+ debugfs_create_file("listen_interval", S_IRUSR | S_IWUSR,
+ ar->debugfs_phy, ar, &fops_listen_int);
+
debugfs_create_file("power_params", S_IWUSR, ar->debugfs_phy, ar,
&fops_power_params);