@@ -44,6 +44,7 @@
#define WO(_f) ((_f##_OFFSET) >> 2)
#define ATH10K_SCAN_ID 0
+#define ATH10K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD 10 /* msec */
#define WMI_READY_TIMEOUT (5 * HZ)
#define ATH10K_FLUSH_TIMEOUT_HZ (5 * HZ)
#define ATH10K_CONNECTION_LOSS_HZ (3 * HZ)
@@ -5668,6 +5668,7 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
struct wmi_start_scan_arg arg;
int ret = 0;
int i;
+ u32 scan_timeout;
mutex_lock(&ar->conf_mutex);
@@ -5723,6 +5724,22 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
arg.channels[i] = req->channels[i]->center_freq;
}
+ /* if duration is set, default dwell times will be overwritten */
+ if (req->duration) {
+ arg.dwell_time_active = req->duration;
+ arg.dwell_time_passive = req->duration;
+ arg.burst_duration_ms = req->duration;
+
+ scan_timeout = min_t(u32, arg.max_rest_time *
+ (arg.n_channels - 1) + (req->duration +
+ ATH10K_SCAN_CHANNEL_SWITCH_WMI_EVT_OVERHEAD) *
+ arg.n_channels, arg.max_scan_time + 200);
+
+ } else {
+ /* Add a 200ms margin to account for event/command processing */
+ scan_timeout = arg.max_scan_time + 200;
+ }
+
ret = ath10k_start_scan(ar, &arg);
if (ret) {
ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
@@ -5731,10 +5748,8 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
spin_unlock_bh(&ar->data_lock);
}
- /* Add a 200ms margin to account for event/command processing */
ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
- msecs_to_jiffies(arg.max_scan_time +
- 200));
+ msecs_to_jiffies(scan_timeout));
exit:
mutex_unlock(&ar->conf_mutex);
@@ -8351,6 +8366,8 @@ int ath10k_mac_register(struct ath10k *ar)
}
wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
+ wiphy_ext_feature_set(ar->hw->wiphy,
+ NL80211_EXT_FEATURE_SET_SCAN_DWELL);
/*
* on LL hardware queues are managed entirely by the FW
Configure channel dwell time from duration of the scan request received from mac80211 when the duration is non-zero. When the scan request does not have duration value, use the default ones, the current implementation. Corresponding flag NL80211_EXT_FEATURE_SET_SCAN_DWELL is advertized. Supported Chipsets: -QCA988X/QCA9887 PCI -QCA99X0/QCA9984/QCA9888/QCA4019 PCI -QCA6174/QCA9377 PCI/USB/SDIO -WCN3990 SNOC Tested on QCA9984 with firmware ver 10.4-3.6-0010 Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> --- drivers/net/wireless/ath/ath10k/core.h | 1 + drivers/net/wireless/ath/ath10k/mac.c | 23 ++++++++++++++++++++--- 2 files changed, 21 insertions(+), 3 deletions(-)