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path: root/drivers/net/wireless/wl12xx/wl1271_tx.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_tx.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_tx.c43
1 files changed, 40 insertions, 3 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index 00af065c77c..a288cc317d7 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -121,6 +121,11 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
pad = pad - skb->len;
tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD;
+ /* if the packets are destined for AP (have a STA entry) send them
+ with AP rate policies, otherwise use default basic rates */
+ if (control->control.sta)
+ tx_attr |= ACX_TX_AP_FULL_RATE << TX_HW_ATTR_OFST_RATE_POLICY;
+
desc->tx_attr = cpu_to_le16(tx_attr);
wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d", pad);
@@ -214,18 +219,50 @@ static int wl1271_tx_frame(struct wl1271 *wl, struct sk_buff *skb)
return ret;
}
+static u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set)
+{
+ struct ieee80211_supported_band *band;
+ u32 enabled_rates = 0;
+ int bit;
+
+ band = wl->hw->wiphy->bands[wl->band];
+ for (bit = 0; bit < band->n_bitrates; bit++) {
+ if (rate_set & 0x1)
+ enabled_rates |= band->bitrates[bit].hw_value;
+ rate_set >>= 1;
+ }
+
+ return enabled_rates;
+}
+
void wl1271_tx_work(struct work_struct *work)
{
struct wl1271 *wl = container_of(work, struct wl1271, tx_work);
struct sk_buff *skb;
bool woken_up = false;
+ u32 sta_rates = 0;
int ret;
+ /* check if the rates supported by the AP have changed */
+ if (unlikely(test_and_clear_bit(WL1271_FLAG_STA_RATES_CHANGED,
+ &wl->flags))) {
+ unsigned long flags;
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ sta_rates = wl->sta_rate_set;
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+ }
+
mutex_lock(&wl->mutex);
if (unlikely(wl->state == WL1271_STATE_OFF))
goto out;
+ /* if rates have changed, re-configure the rate policy */
+ if (unlikely(sta_rates)) {
+ wl->rate_set = wl1271_tx_enabled_rates_get(wl, sta_rates);
+ wl1271_acx_rate_policies(wl);
+ }
+
while ((skb = skb_dequeue(&wl->tx_queue))) {
if (!woken_up) {
ret = wl1271_ps_elp_wakeup(wl, false);
@@ -240,18 +277,18 @@ void wl1271_tx_work(struct work_struct *work)
wl1271_debug(DEBUG_TX, "tx_work: fw buffer full, "
"stop queues");
ieee80211_stop_queues(wl->hw);
- wl->tx_queue_stopped = true;
+ set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
skb_queue_head(&wl->tx_queue, skb);
goto out;
} else if (ret < 0) {
dev_kfree_skb(skb);
goto out;
- } else if (wl->tx_queue_stopped) {
+ } else if (test_and_clear_bit(WL1271_FLAG_TX_QUEUE_STOPPED,
+ &wl->flags)) {
/* firmware buffer has space, restart queues */
wl1271_debug(DEBUG_TX,
"complete_packet: waking queues");
ieee80211_wake_queues(wl->hw);
- wl->tx_queue_stopped = false;
}
}