[PATCH 54/65] staging: wfx: sta and dtim

[Jérôme Pouiller]

From: Jérôme Pouiller <jerome.pouil...@silabs.com>

wfx_ps_notify() is called for any changes in the TIM. However,
association ID 0 is a very special case that should be handled
independently.

Signed-off-by: Jérôme Pouiller <jerome.pouil...@silabs.com>
---
 drivers/staging/wfx/sta.c | 33 +++++++++++++++------------------
 1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 6697c736a054..d4c11b07497f 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -839,21 +839,13 @@ void wfx_bss_info_changed(struct ieee80211_hw *hw,
                wfx_do_join(wvif);
 }
 
-static void wfx_ps_notify(struct wfx_vif *wvif, enum sta_notify_cmd notify_cmd,
-                         int link_id)
+static void wfx_ps_notify_sta(struct wfx_vif *wvif,
+                             enum sta_notify_cmd notify_cmd, int link_id)
 {
        u32 bit, prev;
 
        spin_lock_bh(&wvif->ps_state_lock);
-       /* Zero link id means "for all link IDs" */
-       if (link_id) {
-               bit = BIT(link_id);
-       } else if (notify_cmd != STA_NOTIFY_AWAKE) {
-               dev_warn(wvif->wdev->dev, "unsupported notify command\n");
-               bit = 0;
-       } else {
-               bit = wvif->link_id_map & ~1;
-       }
+       bit = BIT(link_id);
        prev = wvif->sta_asleep_mask & bit;
 
        switch (notify_cmd) {
@@ -867,7 +859,7 @@ static void wfx_ps_notify(struct wfx_vif *wvif, enum 
sta_notify_cmd notify_cmd,
        case STA_NOTIFY_AWAKE:
                if (prev) {
                        wvif->sta_asleep_mask &= ~bit;
-                       if (link_id && !wvif->sta_asleep_mask)
+                       if (!wvif->sta_asleep_mask)
                                schedule_work(&wvif->mcast_stop_work);
                        wfx_bh_request_tx(wvif->wdev);
                }
@@ -882,7 +874,7 @@ void wfx_sta_notify(struct ieee80211_hw *hw, struct 
ieee80211_vif *vif,
        struct wfx_vif *wvif = (struct wfx_vif *) vif->drv_priv;
        struct wfx_sta_priv *sta_priv = (struct wfx_sta_priv *) &sta->drv_priv;
 
-       wfx_ps_notify(wvif, notify_cmd, sta_priv->link_id);
+       wfx_ps_notify_sta(wvif, notify_cmd, sta_priv->link_id);
 }
 
 static int wfx_update_tim(struct wfx_vif *wvif)
@@ -993,6 +985,14 @@ int wfx_ampdu_action(struct ieee80211_hw *hw,
        return -ENOTSUPP;
 }
 
+static void wfx_dtim_notify(struct wfx_vif *wvif)
+{
+       spin_lock_bh(&wvif->ps_state_lock);
+       wvif->sta_asleep_mask = 0;
+       wfx_bh_request_tx(wvif->wdev);
+       spin_unlock_bh(&wvif->ps_state_lock);
+}
+
 void wfx_suspend_resume(struct wfx_vif *wvif,
                        const struct hif_ind_suspend_resume_tx *arg)
 {
@@ -1013,12 +1013,9 @@ void wfx_suspend_resume(struct wfx_vif *wvif,
                if (cancel_tmo)
                        del_timer_sync(&wvif->mcast_timeout);
        } else if (arg->suspend_resume_flags.resume) {
-               // FIXME: should change each station status independently
-               wfx_ps_notify(wvif, STA_NOTIFY_AWAKE, 0);
-               wfx_bh_request_tx(wvif->wdev);
+               wfx_dtim_notify(wvif);
        } else {
-               // FIXME: should change each station status independently
-               wfx_ps_notify(wvif, STA_NOTIFY_SLEEP, 0);
+               dev_warn(wvif->wdev->dev, "unsupported suspend/resume 
notification\n");
        }
 }
 
-- 
2.25.0

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