24 static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)  in hci_uart_tx_complete()  argument
26 	struct hci_dev *hdev = hu->hdev;  in hci_uart_tx_complete()
44 static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)  in hci_uart_dequeue()  argument
46 	struct sk_buff *skb = hu->tx_skb;  in hci_uart_dequeue()
49 		if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_dequeue()
50 			skb = hu->proto->dequeue(hu);  in hci_uart_dequeue()
52 		hu->tx_skb = NULL;  in hci_uart_dequeue()
59 	struct hci_uart *hu = container_of(work, struct hci_uart, write_work);  in hci_uart_write_work()  local
60 	struct serdev_device *serdev = hu->serdev;  in hci_uart_write_work()
61 	struct hci_dev *hdev = hu->hdev;  in hci_uart_write_work()
68 		clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_write_work()
70 		while ((skb = hci_uart_dequeue(hu))) {  in hci_uart_write_work()
79 				hu->tx_skb = skb;  in hci_uart_write_work()
83 			hci_uart_tx_complete(hu, hci_skb_pkt_type(skb));  in hci_uart_write_work()
86 	} while (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state));  in hci_uart_write_work()
88 	clear_bit(HCI_UART_SENDING, &hu->tx_state);  in hci_uart_write_work()
96 	struct hci_uart *hu  = hci_get_drvdata(hdev);  in hci_uart_flush()  local
98 	BT_DBG("hdev %p serdev %p", hdev, hu->serdev);  in hci_uart_flush()
100 	if (hu->tx_skb) {  in hci_uart_flush()
101 		kfree_skb(hu->tx_skb); hu->tx_skb = NULL;  in hci_uart_flush()
105 	serdev_device_write_flush(hu->serdev);  in hci_uart_flush()
107 	if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_flush()
108 		hu->proto->flush(hu);  in hci_uart_flush()
116 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_open()  local
125 	if (!test_bit(HCI_UART_PROTO_READY, &hu->flags)) {  in hci_uart_open()
126 		err = serdev_device_open(hu->serdev);  in hci_uart_open()
129 		set_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_open()
141 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_close()  local
145 	if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_close()
156 		clear_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_close()
157 		serdev_device_close(hu->serdev);  in hci_uart_close()
166 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_send_frame()  local
171 	hu->proto->enqueue(hu, skb);  in hci_uart_send_frame()
173 	hci_uart_tx_wakeup(hu);  in hci_uart_send_frame()
180 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_setup()  local
187 	if (hu->init_speed)  in hci_uart_setup()
188 		speed = hu->init_speed;  in hci_uart_setup()
189 	else if (hu->proto->init_speed)  in hci_uart_setup()
190 		speed = hu->proto->init_speed;  in hci_uart_setup()
195 		serdev_device_set_baudrate(hu->serdev, speed);  in hci_uart_setup()
198 	if (hu->oper_speed)  in hci_uart_setup()
199 		speed = hu->oper_speed;  in hci_uart_setup()
200 	else if (hu->proto->oper_speed)  in hci_uart_setup()
201 		speed = hu->proto->oper_speed;  in hci_uart_setup()
205 	if (hu->proto->set_baudrate && speed) {  in hci_uart_setup()
206 		err = hu->proto->set_baudrate(hu, speed);  in hci_uart_setup()
210 			serdev_device_set_baudrate(hu->serdev, speed);  in hci_uart_setup()
213 	if (hu->proto->setup)  in hci_uart_setup()
214 		return hu->proto->setup(hu);  in hci_uart_setup()
216 	if (!test_bit(HCI_UART_VND_DETECT, &hu->hdev_flags))  in hci_uart_setup()
242 	struct hci_uart *hu = serdev_device_get_drvdata(serdev);  in hci_uart_write_wakeup()  local
246 	if (!hu || serdev != hu->serdev) {  in hci_uart_write_wakeup()
251 	if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_write_wakeup()
252 		hci_uart_tx_wakeup(hu);  in hci_uart_write_wakeup()
268 	struct hci_uart *hu = serdev_device_get_drvdata(serdev);  in hci_uart_receive_buf()  local
270 	if (!hu || serdev != hu->serdev) {  in hci_uart_receive_buf()
275 	if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_receive_buf()
281 	hu->proto->recv(hu, data, count);  in hci_uart_receive_buf()
283 	if (hu->hdev)  in hci_uart_receive_buf()
284 		hu->hdev->stat.byte_rx += count;  in hci_uart_receive_buf()
294 int hci_uart_register_device(struct hci_uart *hu,  in hci_uart_register_device()  argument
302 	serdev_device_set_client_ops(hu->serdev, &hci_serdev_client_ops);  in hci_uart_register_device()
304 	err = serdev_device_open(hu->serdev);  in hci_uart_register_device()
308 	err = p->open(hu);  in hci_uart_register_device()
312 	hu->proto = p;  in hci_uart_register_device()
313 	set_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_register_device()
323 	hu->hdev = hdev;  in hci_uart_register_device()
326 	hci_set_drvdata(hdev, hu);  in hci_uart_register_device()
328 	INIT_WORK(&hu->init_ready, hci_uart_init_work);  in hci_uart_register_device()
329 	INIT_WORK(&hu->write_work, hci_uart_write_work);  in hci_uart_register_device()
330 	percpu_init_rwsem(&hu->proto_lock);  in hci_uart_register_device()
336 	if (hu->proto->setup)  in hci_uart_register_device()
337 		hdev->manufacturer = hu->proto->manufacturer;  in hci_uart_register_device()
344 	SET_HCIDEV_DEV(hdev, &hu->serdev->dev);  in hci_uart_register_device()
346 	if (test_bit(HCI_UART_RAW_DEVICE, &hu->hdev_flags))  in hci_uart_register_device()
349 	if (test_bit(HCI_UART_EXT_CONFIG, &hu->hdev_flags))  in hci_uart_register_device()
352 	if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))  in hci_uart_register_device()
357 	if (test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))  in hci_uart_register_device()
366 	set_bit(HCI_UART_REGISTERED, &hu->flags);  in hci_uart_register_device()
373 	clear_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_register_device()
374 	p->close(hu);  in hci_uart_register_device()
376 	serdev_device_close(hu->serdev);  in hci_uart_register_device()
381 void hci_uart_unregister_device(struct hci_uart *hu)  in hci_uart_unregister_device()  argument
383 	struct hci_dev *hdev = hu->hdev;  in hci_uart_unregister_device()
385 	cancel_work_sync(&hu->init_ready);  in hci_uart_unregister_device()
386 	if (test_bit(HCI_UART_REGISTERED, &hu->flags))  in hci_uart_unregister_device()
390 	cancel_work_sync(&hu->write_work);  in hci_uart_unregister_device()
392 	hu->proto->close(hu);  in hci_uart_unregister_device()
394 	if (test_bit(HCI_UART_PROTO_READY, &hu->flags)) {  in hci_uart_unregister_device()
395 		clear_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_unregister_device()
396 		serdev_device_close(hu->serdev);  in hci_uart_unregister_device()