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mt76x02: generalize some mmio beaconing functions

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Move some TBTT mmio functions to mt76x02_beacon.c and create new ones
in order to be reused by USB pre-TBTT.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Stanislaw Gruszka
2019-03-24 08:22:22 +01:00
committed by Felix Fietkau
parent 37af803a2f
commit 41d61908b2
3 changed files with 115 additions and 89 deletions
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mt76x02_beacon.c
+102
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@@ -184,6 +184,108 @@ void mt76x02_mac_set_beacon_enable(struct mt76x02_dev *dev,
dev->beacon_ops->pre_tbtt_enable(dev, true);
}
void
mt76x02_resync_beacon_timer(struct mt76x02_dev *dev)
{
u32 timer_val = dev->beacon_int << 4;
dev->tbtt_count++;
/*
* Beacon timer drifts by 1us every tick, the timer is configured
* in 1/16 TU (64us) units.
*/
if (dev->tbtt_count < 63)
return;
/*
* The updated beacon interval takes effect after two TBTT, because
* at this point the original interval has already been loaded into
* the next TBTT_TIMER value
*/
if (dev->tbtt_count == 63)
timer_val -= 1;
mt76_rmw_field(dev, MT_BEACON_TIME_CFG,
MT_BEACON_TIME_CFG_INTVAL, timer_val);
if (dev->tbtt_count >= 64) {
dev->tbtt_count = 0;
return;
}
}
EXPORT_SYMBOL_GPL(mt76x02_resync_beacon_timer);
void
mt76x02_update_beacon_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct mt76x02_dev *dev = (struct mt76x02_dev *)priv;
struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
struct sk_buff *skb = NULL;
if (!(dev->beacon_mask & BIT(mvif->idx)))
return;
skb = ieee80211_beacon_get(mt76_hw(dev), vif);
if (!skb)
return;
mt76x02_mac_set_beacon(dev, mvif->idx, skb);
}
EXPORT_SYMBOL_GPL(mt76x02_update_beacon_iter);
static void
mt76x02_add_buffered_bc(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct beacon_bc_data *data = priv;
struct mt76x02_dev *dev = data->dev;
struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv;
struct ieee80211_tx_info *info;
struct sk_buff *skb;
if (!(dev->beacon_mask & BIT(mvif->idx)))
return;
skb = ieee80211_get_buffered_bc(mt76_hw(dev), vif);
if (!skb)
return;
info = IEEE80211_SKB_CB(skb);
info->control.vif = vif;
info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
mt76_skb_set_moredata(skb, true);
__skb_queue_tail(&data->q, skb);
data->tail[mvif->idx] = skb;
}
void
mt76x02_enqueue_buffered_bc(struct mt76x02_dev *dev, struct beacon_bc_data *data,
int max_nframes)
{
int i, nframes;
data->dev = dev;
__skb_queue_head_init(&data->q);
do {
nframes = skb_queue_len(&data->q);
ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev),
IEEE80211_IFACE_ITER_RESUME_ALL,
mt76x02_add_buffered_bc, data);
} while (nframes != skb_queue_len(&data->q) &&
skb_queue_len(&data->q) < max_nframes);
if (!skb_queue_len(&data->q))
return;
for (i = 0; i < ARRAY_SIZE(data->tail); i++) {
if (!data->tail[i])
continue;
mt76_skb_set_moredata(data->tail[i], false);
}
}
EXPORT_SYMBOL_GPL(mt76x02_enqueue_buffered_bc);
void mt76x02_init_beacon_config(struct mt76x02_dev *dev)
{
int i;