26 static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)  in hci_uart_tx_complete()  argument
28 	struct hci_dev *hdev = hu->hdev;  in hci_uart_tx_complete()
46 static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)  in hci_uart_dequeue()  argument
48 	struct sk_buff *skb = hu->tx_skb;  in hci_uart_dequeue()
51 		if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_dequeue()
52 			skb = hu->proto->dequeue(hu);  in hci_uart_dequeue()
54 		hu->tx_skb = NULL;  in hci_uart_dequeue()
61 	struct hci_uart *hu = container_of(work, struct hci_uart, write_work);  in hci_uart_write_work()  local
62 	struct serdev_device *serdev = hu->serdev;  in hci_uart_write_work()
63 	struct hci_dev *hdev = hu->hdev;  in hci_uart_write_work()
70 		clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);  in hci_uart_write_work()
72 		while ((skb = hci_uart_dequeue(hu))) {  in hci_uart_write_work()
81 				hu->tx_skb = skb;  in hci_uart_write_work()
85 			hci_uart_tx_complete(hu, hci_skb_pkt_type(skb));  in hci_uart_write_work()
88 	} while (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state));  in hci_uart_write_work()
90 	clear_bit(HCI_UART_SENDING, &hu->tx_state);  in hci_uart_write_work()
98 	struct hci_uart *hu  = hci_get_drvdata(hdev);  in hci_uart_flush()  local
100 	BT_DBG("hdev %p serdev %p", hdev, hu->serdev);  in hci_uart_flush()
102 	if (hu->tx_skb) {  in hci_uart_flush()
103 		kfree_skb(hu->tx_skb); hu->tx_skb = NULL;  in hci_uart_flush()
107 	serdev_device_write_flush(hu->serdev);  in hci_uart_flush()
109 	if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_flush()
110 		hu->proto->flush(hu);  in hci_uart_flush()
140 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_send_frame()  local
145 	hu->proto->enqueue(hu, skb);  in hci_uart_send_frame()
147 	hci_uart_tx_wakeup(hu);  in hci_uart_send_frame()
154 	struct hci_uart *hu = hci_get_drvdata(hdev);  in hci_uart_setup()  local
161 	if (hu->init_speed)  in hci_uart_setup()
162 		speed = hu->init_speed;  in hci_uart_setup()
163 	else if (hu->proto->init_speed)  in hci_uart_setup()
164 		speed = hu->proto->init_speed;  in hci_uart_setup()
169 		serdev_device_set_baudrate(hu->serdev, speed);  in hci_uart_setup()
172 	if (hu->oper_speed)  in hci_uart_setup()
173 		speed = hu->oper_speed;  in hci_uart_setup()
174 	else if (hu->proto->oper_speed)  in hci_uart_setup()
175 		speed = hu->proto->oper_speed;  in hci_uart_setup()
179 	if (hu->proto->set_baudrate && speed) {  in hci_uart_setup()
180 		err = hu->proto->set_baudrate(hu, speed);  in hci_uart_setup()
184 			serdev_device_set_baudrate(hu->serdev, speed);  in hci_uart_setup()
187 	if (hu->proto->setup)  in hci_uart_setup()
188 		return hu->proto->setup(hu);  in hci_uart_setup()
190 	if (!test_bit(HCI_UART_VND_DETECT, &hu->hdev_flags))  in hci_uart_setup()
216 	struct hci_uart *hu = serdev_device_get_drvdata(serdev);  in hci_uart_write_wakeup()  local
220 	if (!hu || serdev != hu->serdev) {  in hci_uart_write_wakeup()
225 	if (test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_write_wakeup()
226 		hci_uart_tx_wakeup(hu);  in hci_uart_write_wakeup()
242 	struct hci_uart *hu = serdev_device_get_drvdata(serdev);  in hci_uart_receive_buf()  local
244 	if (!hu || serdev != hu->serdev) {  in hci_uart_receive_buf()
249 	if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))  in hci_uart_receive_buf()
255 	hu->proto->recv(hu, data, count);  in hci_uart_receive_buf()
257 	if (hu->hdev)  in hci_uart_receive_buf()
258 		hu->hdev->stat.byte_rx += count;  in hci_uart_receive_buf()
268 int hci_uart_register_device(struct hci_uart *hu,  in hci_uart_register_device()  argument
276 	serdev_device_set_client_ops(hu->serdev, &hci_serdev_client_ops);  in hci_uart_register_device()
278 	err = serdev_device_open(hu->serdev);  in hci_uart_register_device()
282 	err = p->open(hu);  in hci_uart_register_device()
286 	hu->proto = p;  in hci_uart_register_device()
287 	set_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_register_device()
297 	hu->hdev = hdev;  in hci_uart_register_device()
300 	hci_set_drvdata(hdev, hu);  in hci_uart_register_device()
302 	INIT_WORK(&hu->init_ready, hci_uart_init_work);  in hci_uart_register_device()
303 	INIT_WORK(&hu->write_work, hci_uart_write_work);  in hci_uart_register_device()
304 	percpu_init_rwsem(&hu->proto_lock);  in hci_uart_register_device()
310 	if (hu->proto->setup)  in hci_uart_register_device()
311 		hdev->manufacturer = hu->proto->manufacturer;  in hci_uart_register_device()
318 	SET_HCIDEV_DEV(hdev, &hu->serdev->dev);  in hci_uart_register_device()
320 	if (test_bit(HCI_UART_RAW_DEVICE, &hu->hdev_flags))  in hci_uart_register_device()
323 	if (test_bit(HCI_UART_EXT_CONFIG, &hu->hdev_flags))  in hci_uart_register_device()
326 	if (test_bit(HCI_UART_CREATE_AMP, &hu->hdev_flags))  in hci_uart_register_device()
331 	if (test_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags))  in hci_uart_register_device()
340 	set_bit(HCI_UART_REGISTERED, &hu->flags);  in hci_uart_register_device()
347 	clear_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_register_device()
348 	p->close(hu);  in hci_uart_register_device()
350 	serdev_device_close(hu->serdev);  in hci_uart_register_device()
355 void hci_uart_unregister_device(struct hci_uart *hu)  in hci_uart_unregister_device()  argument
357 	struct hci_dev *hdev = hu->hdev;  in hci_uart_unregister_device()
359 	clear_bit(HCI_UART_PROTO_READY, &hu->flags);  in hci_uart_unregister_device()
363 	cancel_work_sync(&hu->write_work);  in hci_uart_unregister_device()
365 	hu->proto->close(hu);  in hci_uart_unregister_device()
366 	serdev_device_close(hu->serdev);  in hci_uart_unregister_device()