191 	struct qca_data *qca = hu->priv;  in serial_clock_vote()  local
194 	bool old_vote = (qca->tx_vote | qca->rx_vote);  in serial_clock_vote()
199 		diff = jiffies_to_msecs(jiffies - qca->vote_last_jif);  in serial_clock_vote()
202 			qca->vote_off_ms += diff;  in serial_clock_vote()
204 			qca->vote_on_ms += diff;  in serial_clock_vote()
208 		qca->tx_vote = true;  in serial_clock_vote()
209 		qca->tx_votes_on++;  in serial_clock_vote()
214 		qca->rx_vote = true;  in serial_clock_vote()
215 		qca->rx_votes_on++;  in serial_clock_vote()
220 		qca->tx_vote = false;  in serial_clock_vote()
221 		qca->tx_votes_off++;  in serial_clock_vote()
222 		new_vote = qca->rx_vote | qca->tx_vote;  in serial_clock_vote()
226 		qca->rx_vote = false;  in serial_clock_vote()
227 		qca->rx_votes_off++;  in serial_clock_vote()
228 		new_vote = qca->rx_vote | qca->tx_vote;  in serial_clock_vote()
245 		diff = jiffies_to_msecs(jiffies - qca->vote_last_jif);  in serial_clock_vote()
248 			qca->votes_on++;  in serial_clock_vote()
249 			qca->vote_off_ms += diff;  in serial_clock_vote()
251 			qca->votes_off++;  in serial_clock_vote()
252 			qca->vote_on_ms += diff;  in serial_clock_vote()
254 		qca->vote_last_jif = jiffies;  in serial_clock_vote()
265 	struct qca_data *qca = hu->priv;  in send_hci_ibs_cmd()  local
278 	skb_queue_tail(&qca->txq, skb);  in send_hci_ibs_cmd()
285 	struct qca_data *qca = container_of(work, struct qca_data,  in qca_wq_awake_device()  local
287 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_device()
295 	spin_lock(&qca->hci_ibs_lock);  in qca_wq_awake_device()
301 	qca->ibs_sent_wakes++;  in qca_wq_awake_device()
304 	retrans_delay = msecs_to_jiffies(qca->wake_retrans);  in qca_wq_awake_device()
305 	mod_timer(&qca->wake_retrans_timer, jiffies + retrans_delay);  in qca_wq_awake_device()
307 	spin_unlock(&qca->hci_ibs_lock);  in qca_wq_awake_device()
315 	struct qca_data *qca = container_of(work, struct qca_data,  in qca_wq_awake_rx()  local
317 	struct hci_uart *hu = qca->hu;  in qca_wq_awake_rx()
323 	spin_lock(&qca->hci_ibs_lock);  in qca_wq_awake_rx()
324 	qca->rx_ibs_state = HCI_IBS_RX_AWAKE;  in qca_wq_awake_rx()
332 	qca->ibs_sent_wacks++;  in qca_wq_awake_rx()
334 	spin_unlock(&qca->hci_ibs_lock);  in qca_wq_awake_rx()
342 	struct qca_data *qca = container_of(work, struct qca_data,  in qca_wq_serial_rx_clock_vote_off()  local
344 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_rx_clock_vote_off()
353 	struct qca_data *qca = container_of(work, struct qca_data,  in qca_wq_serial_tx_clock_vote_off()  local
355 	struct hci_uart *hu = qca->hu;  in qca_wq_serial_tx_clock_vote_off()
370 	struct qca_data *qca = from_timer(qca, t, tx_idle_timer);  in hci_ibs_tx_idle_timeout()  local
371 	struct hci_uart *hu = qca->hu;  in hci_ibs_tx_idle_timeout()
374 	BT_DBG("hu %p idle timeout in %d state", hu, qca->tx_ibs_state);  in hci_ibs_tx_idle_timeout()
376 	spin_lock_irqsave_nested(&qca->hci_ibs_lock,  in hci_ibs_tx_idle_timeout()
379 	switch (qca->tx_ibs_state) {  in hci_ibs_tx_idle_timeout()
386 		qca->tx_ibs_state = HCI_IBS_TX_ASLEEP;  in hci_ibs_tx_idle_timeout()
387 		qca->ibs_sent_slps++;  in hci_ibs_tx_idle_timeout()
388 		queue_work(qca->workqueue, &qca->ws_tx_vote_off);  in hci_ibs_tx_idle_timeout()
396 		BT_ERR("Spurious timeout tx state %d", qca->tx_ibs_state);  in hci_ibs_tx_idle_timeout()
400 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in hci_ibs_tx_idle_timeout()
405 	struct qca_data *qca = from_timer(qca, t, wake_retrans_timer);  in hci_ibs_wake_retrans_timeout()  local
406 	struct hci_uart *hu = qca->hu;  in hci_ibs_wake_retrans_timeout()
411 		hu, qca->tx_ibs_state);  in hci_ibs_wake_retrans_timeout()
413 	spin_lock_irqsave_nested(&qca->hci_ibs_lock,  in hci_ibs_wake_retrans_timeout()
416 	switch (qca->tx_ibs_state) {  in hci_ibs_wake_retrans_timeout()
424 		qca->ibs_sent_wakes++;  in hci_ibs_wake_retrans_timeout()
425 		retrans_delay = msecs_to_jiffies(qca->wake_retrans);  in hci_ibs_wake_retrans_timeout()
426 		mod_timer(&qca->wake_retrans_timer, jiffies + retrans_delay);  in hci_ibs_wake_retrans_timeout()
434 		BT_ERR("Spurious timeout tx state %d", qca->tx_ibs_state);  in hci_ibs_wake_retrans_timeout()
438 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in hci_ibs_wake_retrans_timeout()
448 	struct qca_data *qca;  in qca_open()  local
453 	qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);  in qca_open()
454 	if (!qca)  in qca_open()
457 	skb_queue_head_init(&qca->txq);  in qca_open()
458 	skb_queue_head_init(&qca->tx_wait_q);  in qca_open()
459 	spin_lock_init(&qca->hci_ibs_lock);  in qca_open()
460 	qca->workqueue = alloc_ordered_workqueue("qca_wq", 0);  in qca_open()
461 	if (!qca->workqueue) {  in qca_open()
463 		kfree(qca);  in qca_open()
467 	INIT_WORK(&qca->ws_awake_rx, qca_wq_awake_rx);  in qca_open()
468 	INIT_WORK(&qca->ws_awake_device, qca_wq_awake_device);  in qca_open()
469 	INIT_WORK(&qca->ws_rx_vote_off, qca_wq_serial_rx_clock_vote_off);  in qca_open()
470 	INIT_WORK(&qca->ws_tx_vote_off, qca_wq_serial_tx_clock_vote_off);  in qca_open()
472 	qca->hu = hu;  in qca_open()
475 	qca->tx_ibs_state = HCI_IBS_TX_ASLEEP;  in qca_open()
476 	qca->rx_ibs_state = HCI_IBS_RX_ASLEEP;  in qca_open()
479 	qca->tx_vote = false;  in qca_open()
480 	qca->rx_vote = false;  in qca_open()
481 	qca->flags = 0;  in qca_open()
483 	qca->ibs_sent_wacks = 0;  in qca_open()
484 	qca->ibs_sent_slps = 0;  in qca_open()
485 	qca->ibs_sent_wakes = 0;  in qca_open()
486 	qca->ibs_recv_wacks = 0;  in qca_open()
487 	qca->ibs_recv_slps = 0;  in qca_open()
488 	qca->ibs_recv_wakes = 0;  in qca_open()
489 	qca->vote_last_jif = jiffies;  in qca_open()
490 	qca->vote_on_ms = 0;  in qca_open()
491 	qca->vote_off_ms = 0;  in qca_open()
492 	qca->votes_on = 0;  in qca_open()
493 	qca->votes_off = 0;  in qca_open()
494 	qca->tx_votes_on = 0;  in qca_open()
495 	qca->tx_votes_off = 0;  in qca_open()
496 	qca->rx_votes_on = 0;  in qca_open()
497 	qca->rx_votes_off = 0;  in qca_open()
499 	hu->priv = qca;  in qca_open()
512 				destroy_workqueue(qca->workqueue);  in qca_open()
513 				kfree_skb(qca->rx_skb);  in qca_open()
515 				kfree(qca);  in qca_open()
521 	timer_setup(&qca->wake_retrans_timer, hci_ibs_wake_retrans_timeout, 0);  in qca_open()
522 	qca->wake_retrans = IBS_WAKE_RETRANS_TIMEOUT_MS;  in qca_open()
524 	timer_setup(&qca->tx_idle_timer, hci_ibs_tx_idle_timeout, 0);  in qca_open()
525 	qca->tx_idle_delay = IBS_TX_IDLE_TIMEOUT_MS;  in qca_open()
528 	       qca->tx_idle_delay, qca->wake_retrans);  in qca_open()
536 	struct qca_data *qca = hu->priv;  in qca_debugfs_init()  local
547 	debugfs_create_u8("tx_ibs_state", mode, ibs_dir, &qca->tx_ibs_state);  in qca_debugfs_init()
548 	debugfs_create_u8("rx_ibs_state", mode, ibs_dir, &qca->rx_ibs_state);  in qca_debugfs_init()
550 			   &qca->ibs_sent_slps);  in qca_debugfs_init()
552 			   &qca->ibs_sent_wakes);  in qca_debugfs_init()
554 			   &qca->ibs_sent_wacks);  in qca_debugfs_init()
556 			   &qca->ibs_recv_slps);  in qca_debugfs_init()
558 			   &qca->ibs_recv_wakes);  in qca_debugfs_init()
560 			   &qca->ibs_recv_wacks);  in qca_debugfs_init()
561 	debugfs_create_bool("tx_vote", mode, ibs_dir, &qca->tx_vote);  in qca_debugfs_init()
562 	debugfs_create_u64("tx_votes_on", mode, ibs_dir, &qca->tx_votes_on);  in qca_debugfs_init()
563 	debugfs_create_u64("tx_votes_off", mode, ibs_dir, &qca->tx_votes_off);  in qca_debugfs_init()
564 	debugfs_create_bool("rx_vote", mode, ibs_dir, &qca->rx_vote);  in qca_debugfs_init()
565 	debugfs_create_u64("rx_votes_on", mode, ibs_dir, &qca->rx_votes_on);  in qca_debugfs_init()
566 	debugfs_create_u64("rx_votes_off", mode, ibs_dir, &qca->rx_votes_off);  in qca_debugfs_init()
567 	debugfs_create_u64("votes_on", mode, ibs_dir, &qca->votes_on);  in qca_debugfs_init()
568 	debugfs_create_u64("votes_off", mode, ibs_dir, &qca->votes_off);  in qca_debugfs_init()
569 	debugfs_create_u32("vote_on_ms", mode, ibs_dir, &qca->vote_on_ms);  in qca_debugfs_init()
570 	debugfs_create_u32("vote_off_ms", mode, ibs_dir, &qca->vote_off_ms);  in qca_debugfs_init()
574 	debugfs_create_u32("wake_retrans", mode, ibs_dir, &qca->wake_retrans);  in qca_debugfs_init()
576 			   &qca->tx_idle_delay);  in qca_debugfs_init()
582 	struct qca_data *qca = hu->priv;  in qca_flush()  local
586 	skb_queue_purge(&qca->tx_wait_q);  in qca_flush()
587 	skb_queue_purge(&qca->txq);  in qca_flush()
596 	struct qca_data *qca = hu->priv;  in qca_close()  local
602 	skb_queue_purge(&qca->tx_wait_q);  in qca_close()
603 	skb_queue_purge(&qca->txq);  in qca_close()
604 	del_timer(&qca->tx_idle_timer);  in qca_close()
605 	del_timer(&qca->wake_retrans_timer);  in qca_close()
606 	destroy_workqueue(qca->workqueue);  in qca_close()
607 	qca->hu = NULL;  in qca_close()
619 	kfree_skb(qca->rx_skb);  in qca_close()
623 	kfree(qca);  in qca_close()
633 	struct qca_data *qca = hu->priv;  in device_want_to_wakeup()  local
637 	spin_lock_irqsave(&qca->hci_ibs_lock, flags);  in device_want_to_wakeup()
639 	qca->ibs_recv_wakes++;  in device_want_to_wakeup()
641 	switch (qca->rx_ibs_state) {  in device_want_to_wakeup()
646 		queue_work(qca->workqueue, &qca->ws_awake_rx);  in device_want_to_wakeup()
647 		spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in device_want_to_wakeup()
658 		qca->ibs_sent_wacks++;  in device_want_to_wakeup()
664 		       qca->rx_ibs_state);  in device_want_to_wakeup()
668 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in device_want_to_wakeup()
679 	struct qca_data *qca = hu->priv;  in device_want_to_sleep()  local
683 	spin_lock_irqsave(&qca->hci_ibs_lock, flags);  in device_want_to_sleep()
685 	qca->ibs_recv_slps++;  in device_want_to_sleep()
687 	switch (qca->rx_ibs_state) {  in device_want_to_sleep()
690 		qca->rx_ibs_state = HCI_IBS_RX_ASLEEP;  in device_want_to_sleep()
692 		queue_work(qca->workqueue, &qca->ws_rx_vote_off);  in device_want_to_sleep()
701 		       qca->rx_ibs_state);  in device_want_to_sleep()
705 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in device_want_to_sleep()
713 	struct qca_data *qca = hu->priv;  in device_woke_up()  local
718 	spin_lock_irqsave(&qca->hci_ibs_lock, flags);  in device_woke_up()
720 	qca->ibs_recv_wacks++;  in device_woke_up()
722 	switch (qca->tx_ibs_state) {  in device_woke_up()
726 		       qca->tx_ibs_state);  in device_woke_up()
731 		while ((skb = skb_dequeue(&qca->tx_wait_q)))  in device_woke_up()
732 			skb_queue_tail(&qca->txq, skb);  in device_woke_up()
735 		del_timer(&qca->wake_retrans_timer);  in device_woke_up()
736 		idle_delay = msecs_to_jiffies(qca->tx_idle_delay);  in device_woke_up()
737 		mod_timer(&qca->tx_idle_timer, jiffies + idle_delay);  in device_woke_up()
738 		qca->tx_ibs_state = HCI_IBS_TX_AWAKE;  in device_woke_up()
746 		       qca->tx_ibs_state);  in device_woke_up()
750 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in device_woke_up()
762 	struct qca_data *qca = hu->priv;  in qca_enqueue()  local
765 	       qca->tx_ibs_state);  in qca_enqueue()
773 	if (!test_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags)) {  in qca_enqueue()
774 		skb_queue_tail(&qca->txq, skb);  in qca_enqueue()
778 	spin_lock_irqsave(&qca->hci_ibs_lock, flags);  in qca_enqueue()
781 	switch (qca->tx_ibs_state) {  in qca_enqueue()
784 		skb_queue_tail(&qca->txq, skb);  in qca_enqueue()
785 		idle_delay = msecs_to_jiffies(qca->tx_idle_delay);  in qca_enqueue()
786 		mod_timer(&qca->tx_idle_timer, jiffies + idle_delay);  in qca_enqueue()
792 		skb_queue_tail(&qca->tx_wait_q, skb);  in qca_enqueue()
794 		qca->tx_ibs_state = HCI_IBS_TX_WAKING;  in qca_enqueue()
796 		queue_work(qca->workqueue, &qca->ws_awake_device);  in qca_enqueue()
802 		skb_queue_tail(&qca->tx_wait_q, skb);  in qca_enqueue()
807 		       qca->tx_ibs_state);  in qca_enqueue()
812 	spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);  in qca_enqueue()
885 	struct qca_data *qca = hu->priv;  in qca_recv()  local
890 	qca->rx_skb = h4_recv_buf(hu->hdev, qca->rx_skb, data, count,  in qca_recv()
892 	if (IS_ERR(qca->rx_skb)) {  in qca_recv()
893 		int err = PTR_ERR(qca->rx_skb);  in qca_recv()
895 		qca->rx_skb = NULL;  in qca_recv()
904 	struct qca_data *qca = hu->priv;  in qca_dequeue()  local
906 	return skb_dequeue(&qca->txq);  in qca_dequeue()
948 	struct qca_data *qca = hu->priv;  in qca_set_baudrate()  local
975 	skb_queue_tail(&qca->txq, skb);  in qca_set_baudrate()
1003 	struct qca_data *qca = hu->priv;  in qca_send_power_pulse()  local
1027 	skb_queue_tail(&qca->txq, skb);  in qca_send_power_pulse()
1140 	struct qca_data *qca = hu->priv;  in qca_setup()  local
1153 	clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);  in qca_setup()
1190 		set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);  in qca_setup()
1320 static int qca_init_regulators(struct qca_power *qca,  in qca_init_regulators()  argument
1325 	qca->vreg_bulk = devm_kcalloc(qca->dev, num_vregs,  in qca_init_regulators()
1328 	if (!qca->vreg_bulk)  in qca_init_regulators()
1332 		qca->vreg_bulk[i].supply = vregs[i].name;  in qca_init_regulators()
1334 	return devm_regulator_bulk_get(qca->dev, num_vregs, qca->vreg_bulk);  in qca_init_regulators()