77 	int			(*rx_func)(struct hci_uart *hu, u8 c);
80 	struct hci_uart		*hu;		/* Parent HCI UART */  member
125 static void h5_link_control(struct hci_uart *hu, const void *data, size_t len)  in h5_link_control()  argument
127 	struct h5 *h5 = hu->priv;  in h5_link_control()
152 	struct hci_uart *hu = h5->hu;  in h5_timed_event()  local
156 	BT_DBG("%s", hu->hdev->name);  in h5_timed_event()
159 		h5_link_control(hu, sync_req, sizeof(sync_req));  in h5_timed_event()
163 		h5_link_control(hu, conf_req, sizeof(conf_req));  in h5_timed_event()
176 	BT_DBG("hu %p retransmitting %u pkts", hu, h5->unack.qlen);  in h5_timed_event()
188 	hci_uart_tx_wakeup(hu);  in h5_timed_event()
191 static void h5_peer_reset(struct hci_uart *hu)  in h5_peer_reset()  argument
193 	struct h5 *h5 = hu->priv;  in h5_peer_reset()
195 	bt_dev_err(hu->hdev, "Peer device has reset");  in h5_peer_reset()
209 	hci_reset_dev(hu->hdev);  in h5_peer_reset()
212 static int h5_open(struct hci_uart *hu)  in h5_open()  argument
217 	BT_DBG("hu %p", hu);  in h5_open()
219 	if (hu->serdev) {  in h5_open()
220 		h5 = serdev_device_get_drvdata(hu->serdev);  in h5_open()
227 	hu->priv = h5;  in h5_open()
228 	h5->hu = hu;  in h5_open()
243 	set_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags);  in h5_open()
246 	h5_link_control(hu, sync, sizeof(sync));  in h5_open()
252 static int h5_close(struct hci_uart *hu)  in h5_close()  argument
254 	struct h5 *h5 = hu->priv;  in h5_close()
268 	if (!hu->serdev)  in h5_close()
274 static int h5_setup(struct hci_uart *hu)  in h5_setup()  argument
276 	struct h5 *h5 = hu->priv;  in h5_setup()
326 static void h5_handle_internal_rx(struct hci_uart *hu)  in h5_handle_internal_rx()  argument
328 	struct h5 *h5 = hu->priv;  in h5_handle_internal_rx()
339 	BT_DBG("%s", hu->hdev->name);  in h5_handle_internal_rx()
351 			h5_peer_reset(hu);  in h5_handle_internal_rx()
352 		h5_link_control(hu, sync_rsp, 2);  in h5_handle_internal_rx()
355 			h5_peer_reset(hu);  in h5_handle_internal_rx()
357 		h5_link_control(hu, conf_req, 3);  in h5_handle_internal_rx()
359 		h5_link_control(hu, conf_rsp, 2);  in h5_handle_internal_rx()
360 		h5_link_control(hu, conf_req, 3);  in h5_handle_internal_rx()
366 		hci_uart_init_ready(hu);  in h5_handle_internal_rx()
377 		h5_link_control(hu, woken_req, 2);  in h5_handle_internal_rx()
384 	hci_uart_tx_wakeup(hu);  in h5_handle_internal_rx()
387 static void h5_complete_rx_pkt(struct hci_uart *hu)  in h5_complete_rx_pkt()  argument
389 	struct h5 *h5 = hu->priv;  in h5_complete_rx_pkt()
395 		hci_uart_tx_wakeup(hu);  in h5_complete_rx_pkt()
412 		hci_recv_frame(hu->hdev, h5->rx_skb);  in h5_complete_rx_pkt()
418 		h5_handle_internal_rx(hu);  in h5_complete_rx_pkt()
425 static int h5_rx_crc(struct hci_uart *hu, unsigned char c)  in h5_rx_crc()  argument
427 	h5_complete_rx_pkt(hu);  in h5_rx_crc()
432 static int h5_rx_payload(struct hci_uart *hu, unsigned char c)  in h5_rx_payload()  argument
434 	struct h5 *h5 = hu->priv;  in h5_rx_payload()
441 		h5_complete_rx_pkt(hu);  in h5_rx_payload()
447 static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c)  in h5_rx_3wire_hdr()  argument
449 	struct h5 *h5 = hu->priv;  in h5_rx_3wire_hdr()
453 	       hu->hdev->name, H5_HDR_SEQ(hdr), H5_HDR_ACK(hdr),  in h5_rx_3wire_hdr()
458 		bt_dev_err(hu->hdev, "Invalid header checksum");  in h5_rx_3wire_hdr()
464 		bt_dev_err(hu->hdev, "Out-of-order packet arrived (%u != %u)",  in h5_rx_3wire_hdr()
467 		hci_uart_tx_wakeup(hu);  in h5_rx_3wire_hdr()
474 		bt_dev_err(hu->hdev, "Non-link packet received in non-active state");  in h5_rx_3wire_hdr()
485 static int h5_rx_pkt_start(struct hci_uart *hu, unsigned char c)  in h5_rx_pkt_start()  argument
487 	struct h5 *h5 = hu->priv;  in h5_rx_pkt_start()
497 		bt_dev_err(hu->hdev, "Can't allocate mem for new packet");  in h5_rx_pkt_start()
502 	h5->rx_skb->dev = (void *)hu->hdev;  in h5_rx_pkt_start()
507 static int h5_rx_delimiter(struct hci_uart *hu, unsigned char c)  in h5_rx_delimiter()  argument
509 	struct h5 *h5 = hu->priv;  in h5_rx_delimiter()
560 static int h5_recv(struct hci_uart *hu, const void *data, int count)  in h5_recv()  argument
562 	struct h5 *h5 = hu->priv;  in h5_recv()
565 	BT_DBG("%s pending %zu count %d", hu->hdev->name, h5->rx_pending,  in h5_recv()
573 				bt_dev_err(hu->hdev, "Too short H5 packet");  in h5_recv()
584 		processed = h5->rx_func(hu, *ptr);  in h5_recv()
592 	if (hu->serdev) {  in h5_recv()
593 		pm_runtime_get(&hu->serdev->dev);  in h5_recv()
594 		pm_runtime_mark_last_busy(&hu->serdev->dev);  in h5_recv()
595 		pm_runtime_put_autosuspend(&hu->serdev->dev);  in h5_recv()
601 static int h5_enqueue(struct hci_uart *hu, struct sk_buff *skb)  in h5_enqueue()  argument
603 	struct h5 *h5 = hu->priv;  in h5_enqueue()
606 		bt_dev_err(hu->hdev, "Packet too long (%u bytes)", skb->len);  in h5_enqueue()
612 		bt_dev_err(hu->hdev, "Ignoring HCI data in non-active state");  in h5_enqueue()
629 		bt_dev_err(hu->hdev, "Unknown packet type %u", hci_skb_pkt_type(skb));  in h5_enqueue()
634 	if (hu->serdev) {  in h5_enqueue()
635 		pm_runtime_get_sync(&hu->serdev->dev);  in h5_enqueue()
636 		pm_runtime_mark_last_busy(&hu->serdev->dev);  in h5_enqueue()
637 		pm_runtime_put_autosuspend(&hu->serdev->dev);  in h5_enqueue()
682 static struct sk_buff *h5_prepare_pkt(struct hci_uart *hu, u8 pkt_type,  in h5_prepare_pkt()  argument
685 	struct h5 *h5 = hu->priv;  in h5_prepare_pkt()
691 		bt_dev_err(hu->hdev, "Unknown packet type %u", pkt_type);  in h5_prepare_pkt()
724 	       hu->hdev->name, H5_HDR_SEQ(hdr), H5_HDR_ACK(hdr),  in h5_prepare_pkt()
739 static struct sk_buff *h5_dequeue(struct hci_uart *hu)  in h5_dequeue()  argument
741 	struct h5 *h5 = hu->priv;  in h5_dequeue()
755 		return h5_prepare_pkt(hu, HCI_3WIRE_LINK_PKT, wakeup_req, 2);  in h5_dequeue()
760 		nskb = h5_prepare_pkt(hu, hci_skb_pkt_type(skb),  in h5_dequeue()
768 		bt_dev_err(hu->hdev, "Could not dequeue pkt because alloc_skb failed");  in h5_dequeue()
778 		nskb = h5_prepare_pkt(hu, hci_skb_pkt_type(skb),  in h5_dequeue()
788 		bt_dev_err(hu->hdev, "Could not dequeue pkt because alloc_skb failed");  in h5_dequeue()
795 		return h5_prepare_pkt(hu, HCI_3WIRE_ACK_PKT, NULL, 0);  in h5_dequeue()
800 static int h5_flush(struct hci_uart *hu)  in h5_flush()  argument
802 	BT_DBG("hu %p", hu);  in h5_flush()
828 	h5->hu = &h5->serdev_hu;  in h5_serdev_probe()
909 	btrtl_dev = btrtl_initialize(h5->hu->hdev, h5->id);  in h5_btrtl_setup()
913 	err = btrtl_get_uart_settings(h5->hu->hdev, btrtl_dev,  in h5_btrtl_setup()
920 	skb = __hci_cmd_sync(h5->hu->hdev, 0xfc17, sizeof(baudrate_data),  in h5_btrtl_setup()
923 		rtl_dev_err(h5->hu->hdev, "set baud rate command failed\n");  in h5_btrtl_setup()
932 	serdev_device_set_baudrate(h5->hu->serdev, controller_baudrate);  in h5_btrtl_setup()
933 	serdev_device_set_flow_control(h5->hu->serdev, flow_control);  in h5_btrtl_setup()
938 	err = btrtl_download_firmware(h5->hu->hdev, btrtl_dev);  in h5_btrtl_setup()
944 	btrtl_set_quirks(h5->hu->hdev, btrtl_dev);  in h5_btrtl_setup()
960 		set_bit(HCI_UART_NO_SUSPEND_NOTIFIER, &h5->hu->flags);  in h5_btrtl_open()
963 	serdev_device_set_flow_control(h5->hu->serdev, false);  in h5_btrtl_open()
964 	serdev_device_set_parity(h5->hu->serdev, SERDEV_PARITY_EVEN);  in h5_btrtl_open()
965 	serdev_device_set_baudrate(h5->hu->serdev, 115200);  in h5_btrtl_open()
968 		pm_runtime_set_active(&h5->hu->serdev->dev);  in h5_btrtl_open()
969 		pm_runtime_use_autosuspend(&h5->hu->serdev->dev);  in h5_btrtl_open()
970 		pm_runtime_set_autosuspend_delay(&h5->hu->serdev->dev,  in h5_btrtl_open()
972 		pm_runtime_enable(&h5->hu->serdev->dev);  in h5_btrtl_open()
989 		pm_runtime_disable(&h5->hu->serdev->dev);  in h5_btrtl_close()
1003 	serdev_device_set_flow_control(h5->hu->serdev, false);  in h5_btrtl_suspend()
1044 		reprobe->dev = get_device(&h5->hu->serdev->dev);  in h5_btrtl_resume()
1050 			serdev_device_set_flow_control(h5->hu->serdev, true);  in h5_btrtl_resume()