drivers/bluetooth/hci_ll.c

89 	struct ll_struct *ll = hu->priv;
105 	skb_queue_tail(&ll->txq, skb);
113 	struct ll_struct *ll;
117 	ll = kzalloc(sizeof(*ll), GFP_KERNEL);
118 	if (!ll)
121 	skb_queue_head_init(&ll->txq);
122 	skb_queue_head_init(&ll->tx_wait_q);
123 	spin_lock_init(&ll->hcill_lock);
125 	ll->hcill_state = HCILL_AWAKE;
127 	hu->priv = ll;
142 	struct ll_struct *ll = hu->priv;
146 	skb_queue_purge(&ll->tx_wait_q);
147 	skb_queue_purge(&ll->txq);
155 	struct ll_struct *ll = hu->priv;
159 	skb_queue_purge(&ll->tx_wait_q);
160 	skb_queue_purge(&ll->txq);
162 	kfree_skb(ll->rx_skb);
174 	kfree(ll);
186 static void __ll_do_awake(struct ll_struct *ll)
190 	while ((skb = skb_dequeue(&ll->tx_wait_q)))
191 		skb_queue_tail(&ll->txq, skb);
193 	ll->hcill_state = HCILL_AWAKE;
202 	struct ll_struct *ll = hu->priv;
207 	spin_lock_irqsave(&ll->hcill_lock, flags);
209 	switch (ll->hcill_state) {
233 		       ll->hcill_state);
238 	__ll_do_awake(ll);
241 	spin_unlock_irqrestore(&ll->hcill_lock, flags);
253 	struct ll_struct *ll = hu->priv;
258 	spin_lock_irqsave(&ll->hcill_lock, flags);
261 	if (ll->hcill_state != HCILL_AWAKE)
263 		       ll->hcill_state);
272 	ll->hcill_state = HCILL_ASLEEP;
275 	spin_unlock_irqrestore(&ll->hcill_lock, flags);
287 	struct ll_struct *ll = hu->priv;
292 	spin_lock_irqsave(&ll->hcill_lock, flags);
295 	if (ll->hcill_state != HCILL_ASLEEP_TO_AWAKE)
297 		       ll->hcill_state);
300 	__ll_do_awake(ll);
302 	spin_unlock_irqrestore(&ll->hcill_lock, flags);
313 	struct ll_struct *ll = hu->priv;
321 	spin_lock_irqsave(&ll->hcill_lock, flags);
324 	switch (ll->hcill_state) {
327 		skb_queue_tail(&ll->txq, skb);
332 		skb_queue_tail(&ll->tx_wait_q, skb);
338 		ll->hcill_state = HCILL_ASLEEP_TO_AWAKE;
343 		skb_queue_tail(&ll->tx_wait_q, skb);
347 		       ll->hcill_state);
352 	spin_unlock_irqrestore(&ll->hcill_lock, flags);
360 	struct ll_struct *ll = hu->priv;
370 			   ll->hcill_state);
427 	struct ll_struct *ll = hu->priv;
432 	ll->rx_skb = h4_recv_buf(hu->hdev, ll->rx_skb, data, count,
434 	if (IS_ERR(ll->rx_skb)) {
435 		int err = PTR_ERR(ll->rx_skb);
437 		ll->rx_skb = NULL;
446 	struct ll_struct *ll = hu->priv;
448 	return skb_dequeue(&ll->txq);