91 static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)  in hci_uart_tx_complete()  argument
93 	struct hci_dev *hdev = hu->hdev;  in hci_uart_tx_complete()
111 static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)  in hci_uart_dequeue()  argument
113 	struct sk_buff *skb = hu->tx_skb;  in hci_uart_dequeue()
116 		skb = hu->proto->dequeue(hu);  in hci_uart_dequeue()
118 		hu->tx_skb = NULL;  in hci_uart_dequeue()
123 int hci_uart_tx_wakeup(struct hci_uart *hu)  in hci_uart_tx_wakeup()  argument
125 	if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {  in hci_uart_tx_wakeup()
126 		set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_tx_wakeup()
132 	schedule_work(&hu->write_work);  in hci_uart_tx_wakeup()
139 	struct hci_uart *hu = container_of(work, struct hci_uart, write_work);  in hci_uart_write_work()  local
140 	struct tty_struct *tty = hu->tty;  in hci_uart_write_work()
141 	struct hci_dev *hdev = hu->hdev;  in hci_uart_write_work()
149 	clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_write_work()
151 	while ((skb = hci_uart_dequeue(hu))) {  in hci_uart_write_work()
160 			hu->tx_skb = skb;  in hci_uart_write_work()
164 		hci_uart_tx_complete(hu, bt_cb(skb)->pkt_type);  in hci_uart_write_work()
168 	if (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state))  in hci_uart_write_work()
171 	clear_bit(HCI_UART_SENDING, &hu->tx_state);  in hci_uart_write_work()
176 	struct hci_uart *hu = container_of(work, struct hci_uart, init_ready);  in hci_uart_init_work()  local
179 	if (!test_and_clear_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))  in hci_uart_init_work()
182 	err = hci_register_dev(hu->hdev);  in hci_uart_init_work()
185 		hci_free_dev(hu->hdev);  in hci_uart_init_work()
186 		hu->hdev = NULL;  in hci_uart_init_work()
187 		hu->proto->close(hu);  in hci_uart_init_work()
190 	set_bit(HCI_UART_REGISTERED, &hu->flags);  in hci_uart_init_work()
193 int hci_uart_init_ready(struct hci_uart *hu)  in hci_uart_init_ready()  argument
195 	if (!test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))  in hci_uart_init_ready()
198 	schedule_work(&hu->init_ready);  in hci_uart_init_ready()
219 	struct hci_uart *hu  = hci_get_drvdata(hdev);  in hci_uart_flush()  local
220 	struct tty_struct *tty = hu->tty;  in hci_uart_flush()
224 	if (hu->tx_skb) {  in hci_uart_flush()
225 		kfree_skb(hu->tx_skb); hu->tx_skb = NULL;  in hci_uart_flush()
232 	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_flush()
233 		hu->proto->flush(hu);  in hci_uart_flush()
254 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_send_frame()  local
261 	hu->proto->enqueue(hu, skb);  in hci_uart_send_frame()
263 	hci_uart_tx_wakeup(hu);  in hci_uart_send_frame()
270 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_setup()  local
274 	if (hu->proto->setup)  in hci_uart_setup()
275 		return hu->proto->setup(hu);  in hci_uart_setup()
277 	if (!test_bit(HCI_UART_VND_DETECT, &hu->hdev_flags))  in hci_uart_setup()
328 	struct hci_uart *hu;  in hci_uart_tty_open()  local
337 	hu = kzalloc(sizeof(struct hci_uart), GFP_KERNEL);  in hci_uart_tty_open()
338 	if (!hu) {  in hci_uart_tty_open()
343 	tty->disc_data = hu;  in hci_uart_tty_open()
344 	hu->tty = tty;  in hci_uart_tty_open()
347 	INIT_WORK(&hu->init_ready, hci_uart_init_work);  in hci_uart_tty_open()
348 	INIT_WORK(&hu->write_work, hci_uart_write_work);  in hci_uart_tty_open()
350 	spin_lock_init(&hu->rx_lock);  in hci_uart_tty_open()
371 	struct hci_uart *hu = tty->disc_data;  in hci_uart_tty_close()  local
379 	if (!hu)  in hci_uart_tty_close()
382 	hdev = hu->hdev;  in hci_uart_tty_close()
386 	cancel_work_sync(&hu->write_work);  in hci_uart_tty_close()
388 	if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {  in hci_uart_tty_close()
390 			if (test_bit(HCI_UART_REGISTERED, &hu->flags))  in hci_uart_tty_close()
394 		hu->proto->close(hu);  in hci_uart_tty_close()
397 	kfree(hu);  in hci_uart_tty_close()
410 	struct hci_uart *hu = tty->disc_data;  in hci_uart_tty_wakeup()  local
414 	if (!hu)  in hci_uart_tty_wakeup()
419 	if (tty != hu->tty)  in hci_uart_tty_wakeup()
422 	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_wakeup()
423 		hci_uart_tx_wakeup(hu);  in hci_uart_tty_wakeup()
441 	struct hci_uart *hu = tty->disc_data;  in hci_uart_tty_receive()  local
443 	if (!hu || tty != hu->tty)  in hci_uart_tty_receive()
446 	if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_receive()
449 	spin_lock(&hu->rx_lock);  in hci_uart_tty_receive()
450 	hu->proto->recv(hu, data, count);  in hci_uart_tty_receive()
452 	if (hu->hdev)  in hci_uart_tty_receive()
453 		hu->hdev->stat.byte_rx += count;  in hci_uart_tty_receive()
455 	spin_unlock(&hu->rx_lock);  in hci_uart_tty_receive()
460 static int hci_uart_register_dev(struct hci_uart *hu)  in hci_uart_register_dev()  argument
473 	hu->hdev = hdev;  in hci_uart_register_dev()
476 	hci_set_drvdata(hdev, hu);  in hci_uart_register_dev()
483 	SET_HCIDEV_DEV(hdev, hu->tty->dev);  in hci_uart_register_dev()
485 	if (test_bit(HCI_UART_RAW_DEVICE, &hu->hdev_flags))  in hci_uart_register_dev()
488 	if (test_bit(HCI_UART_EXT_CONFIG, &hu->hdev_flags))  in hci_uart_register_dev()
491 	if (!test_bit(HCI_UART_RESET_ON_INIT, &hu->hdev_flags))  in hci_uart_register_dev()
494 	if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))  in hci_uart_register_dev()
499 	if (test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))  in hci_uart_register_dev()
508 	set_bit(HCI_UART_REGISTERED, &hu->flags);  in hci_uart_register_dev()
513 static int hci_uart_set_proto(struct hci_uart *hu, int id)  in hci_uart_set_proto()  argument
522 	err = p->open(hu);  in hci_uart_set_proto()
526 	hu->proto = p;  in hci_uart_set_proto()
528 	err = hci_uart_register_dev(hu);  in hci_uart_set_proto()
530 		p->close(hu);  in hci_uart_set_proto()
537 static int hci_uart_set_flags(struct hci_uart *hu, unsigned long flags)  in hci_uart_set_flags()  argument
549 	hu->hdev_flags = flags;  in hci_uart_set_flags()
570 	struct hci_uart *hu = tty->disc_data;  in hci_uart_tty_ioctl()  local
576 	if (!hu)  in hci_uart_tty_ioctl()
581 		if (!test_and_set_bit(HCI_UART_PROTO_SET, &hu->flags)) {  in hci_uart_tty_ioctl()
582 			err = hci_uart_set_proto(hu, arg);  in hci_uart_tty_ioctl()
584 				clear_bit(HCI_UART_PROTO_SET, &hu->flags);  in hci_uart_tty_ioctl()
592 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_ioctl()
593 			return hu->proto->id;  in hci_uart_tty_ioctl()
597 		if (test_bit(HCI_UART_REGISTERED, &hu->flags))  in hci_uart_tty_ioctl()
598 			return hu->hdev->id;  in hci_uart_tty_ioctl()
602 		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))  in hci_uart_tty_ioctl()
604 		err = hci_uart_set_flags(hu, arg);  in hci_uart_tty_ioctl()
610 		return hu->hdev_flags;  in hci_uart_tty_ioctl()