ath10k: implement AP CSA

Most channel switching logic has been implemented
already so this patch is pretty small. The patch
makes use of mac80211's vif->csa_active for AP CSA
handling.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index f0969cd8350f..a1ec5d0fb0ef 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1405,6 +1405,17 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
                         continue;
                 }
 
+                /* There are no completions for beacons so wait for next SWBA
+                 * before telling mac80211 to decrement CSA counter
+                 *
+                 * Once CSA counter is completed stop sending beacons until
+                 * actual channel switch is done */
+                if (arvif->vif->csa_active &&
+                    ieee80211_csa_is_complete(arvif->vif)) {
+                        ieee80211_csa_finish(arvif->vif);
+                        continue;
+                }
+
                 bcn = ieee80211_beacon_get(ar->hw, arvif->vif);
                 if (!bcn) {
                         ath10k_warn("could not get mac80211 beacon\n");