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
Signed-off-by: Sujith Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 3 +-
drivers/net/wireless/ath/ath6kl/core.h | 3 +-
drivers/net/wireless/ath/ath6kl/debug.c | 45 +++++++++++----------------
drivers/net/wireless/ath/ath6kl/main.c | 7 ++--
4 files changed, 24 insertions(+), 34 deletions(-)
diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index cfe9cd5..1c6c867 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -2725,8 +2725,7 @@ struct ath6kl *ath6kl_core_alloc(struct device *dev)
clear_bit(SKIP_SCAN, &ar->flag);
clear_bit(DESTROY_IN_PROGRESS, &ar->flag);
- ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL;
- ar->listen_intvl_b = 0;
+ ar->listen_intvl_b = A_DEFAULT_LISTEN_INTERVAL;
ar->tx_pwr = 0;
ar->intra_bss = 1;
diff --git a/drivers/net/wireless/ath/ath6kl/core.h b/drivers/net/wireless/ath/ath6kl/core.h
index c095faf..dadda0b 100644
--- a/drivers/net/wireless/ath/ath6kl/core.h
+++ b/drivers/net/wireless/ath/ath6kl/core.h
@@ -55,7 +55,7 @@
#define MAX_DEFAULT_SEND_QUEUE_DEPTH (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)
#define DISCON_TIMER_INTVAL 10000 /* in msec */
-#define A_DEFAULT_LISTEN_INTERVAL 100
+#define A_DEFAULT_LISTEN_INTERVAL 1 /* Number of beacon intervals */
#define A_MAX_WOW_LISTEN_INTERVAL 1000
/* includes also the null byte */
@@ -525,7 +525,6 @@ struct ath6kl {
spinlock_t lock;
struct semaphore sem;
u16 listen_intvl_b;
- u16 listen_intvl_t;
u8 lrssi_roam_threshold;
struct ath6kl_version version;
u32 target_type;
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index eb808b4..7e97e71 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -1505,57 +1505,45 @@ static const struct file_operations fops_bgscan_int = {
};
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)
- return -EINVAL;
-
- if (kstrtou16(token, 0, &listen_int_t))
- return -EINVAL;
-
- if (kstrtou16(sptr, 0, &listen_int_b))
- return -EINVAL;
-
- if ((listen_int_t < 15) || (listen_int_t > 5000))
+ if (kstrtou16(buf, 0, &listen_interval))
return -EINVAL;
- if ((listen_int_b < 1) || (listen_int_b > 50))
+ if ((listen_interval < 1) || (listen_interval > 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);
+ 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 +1698,9 @@ int ath6kl_debug_init(struct ath6kl *ar)
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);
diff --git a/drivers/net/wireless/ath/ath6kl/main.c b/drivers/net/wireless/ath/ath6kl/main.c
index f74986d..f0c7d08 100644
--- a/drivers/net/wireless/ath/ath6kl/main.c
+++ b/drivers/net/wireless/ath/ath6kl/main.c
@@ -587,10 +587,11 @@ void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
memcpy(vif->bssid, bssid, sizeof(vif->bssid));
vif->bss_ch = channel;
- if ((vif->nw_type == INFRA_NETWORK))
+ if ((vif->nw_type == INFRA_NETWORK)) {
+ ar->listen_intvl_b = listen_int;
ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
- ar->listen_intvl_t,
- ar->listen_intvl_b);
+ 0, ar->listen_intvl_b);
+ }
netif_wake_queue(vif->ndev);
--
1.7.8.3