242 	struct net_device *netdev;  member
263 	struct net_device *netdev = dev->netdev;  in ems_usb_read_interrupt_callback()  local
266 	if (!netif_device_present(netdev))  in ems_usb_read_interrupt_callback()
273 		    netif_queue_stopped(netdev))  in ems_usb_read_interrupt_callback()
274 			netif_wake_queue(netdev);  in ems_usb_read_interrupt_callback()
285 		netdev_info(netdev, "Rx interrupt aborted %d\n", urb->status);  in ems_usb_read_interrupt_callback()
292 		netif_device_detach(netdev);  in ems_usb_read_interrupt_callback()
294 		netdev_err(netdev, "failed resubmitting intr urb: %d\n", err);  in ems_usb_read_interrupt_callback()
302 	struct net_device_stats *stats = &dev->netdev->stats;  in ems_usb_rx_can_msg()
304 	skb = alloc_can_skb(dev->netdev, &cf);  in ems_usb_rx_can_msg()
332 	struct net_device_stats *stats = &dev->netdev->stats;  in ems_usb_rx_err()
334 	skb = alloc_can_err_skb(dev->netdev, &cf);  in ems_usb_rx_err()
346 			can_bus_off(dev->netdev);  in ems_usb_rx_err()
409 	struct net_device *netdev;  in ems_usb_read_bulk_callback()  local
412 	netdev = dev->netdev;  in ems_usb_read_bulk_callback()
414 	if (!netif_device_present(netdev))  in ems_usb_read_bulk_callback()
425 		netdev_info(netdev, "Rx URB aborted (%d)\n", urb->status);  in ems_usb_read_bulk_callback()
469 				netdev_err(netdev, "format error\n");  in ems_usb_read_bulk_callback()
483 		netif_device_detach(netdev);  in ems_usb_read_bulk_callback()
485 		netdev_err(netdev,  in ems_usb_read_bulk_callback()
496 	struct net_device *netdev;  in ems_usb_write_bulk_callback()  local
501 	netdev = dev->netdev;  in ems_usb_write_bulk_callback()
509 	if (!netif_device_present(netdev))  in ems_usb_write_bulk_callback()
513 		netdev_info(netdev, "Tx URB aborted (%d)\n", urb->status);  in ems_usb_write_bulk_callback()
515 	netif_trans_update(netdev);  in ems_usb_write_bulk_callback()
518 	netdev->stats.tx_packets++;  in ems_usb_write_bulk_callback()
519 	netdev->stats.tx_bytes += context->dlc;  in ems_usb_write_bulk_callback()
521 	can_get_echo_skb(netdev, context->echo_index);  in ems_usb_write_bulk_callback()
581 	struct net_device *netdev = dev->netdev;  in ems_usb_start()  local
601 			netdev_err(netdev, "No memory left for USB buffer\n");  in ems_usb_start()
628 		netdev_warn(netdev, "couldn't setup read URBs\n");  in ems_usb_start()
634 		netdev_warn(netdev, "rx performance may be slow\n");  in ems_usb_start()
645 		netdev_warn(netdev, "intr URB submit failed: %d\n", err);  in ems_usb_start()
674 	netdev_warn(netdev, "couldn't submit control: %d\n", err);  in ems_usb_start()
694 static int ems_usb_open(struct net_device *netdev)  in ems_usb_open()  argument
696 	struct ems_usb *dev = netdev_priv(netdev);  in ems_usb_open()
704 	err = open_candev(netdev);  in ems_usb_open()
712 			netif_device_detach(dev->netdev);  in ems_usb_open()
714 		netdev_warn(netdev, "couldn't start device: %d\n", err);  in ems_usb_open()
716 		close_candev(netdev);  in ems_usb_open()
722 	netif_start_queue(netdev);  in ems_usb_open()
727 static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *netdev)  in ems_usb_start_xmit()  argument
729 	struct ems_usb *dev = netdev_priv(netdev);  in ems_usb_start_xmit()
731 	struct net_device_stats *stats = &netdev->stats;  in ems_usb_start_xmit()
740 	if (can_dropped_invalid_skb(netdev, skb))  in ems_usb_start_xmit()
750 		netdev_err(netdev, "No memory left for USB buffer\n");  in ems_usb_start_xmit()
790 		netdev_warn(netdev, "couldn't find free context\n");  in ems_usb_start_xmit()
804 	can_put_echo_skb(skb, netdev, context->echo_index);  in ems_usb_start_xmit()
810 		can_free_echo_skb(netdev, context->echo_index);  in ems_usb_start_xmit()
819 			netif_device_detach(netdev);  in ems_usb_start_xmit()
821 			netdev_warn(netdev, "failed tx_urb %d\n", err);  in ems_usb_start_xmit()
826 		netif_trans_update(netdev);  in ems_usb_start_xmit()
831 			netif_stop_queue(netdev);  in ems_usb_start_xmit()
850 static int ems_usb_close(struct net_device *netdev)  in ems_usb_close()  argument
852 	struct ems_usb *dev = netdev_priv(netdev);  in ems_usb_close()
857 	netif_stop_queue(netdev);  in ems_usb_close()
861 		netdev_warn(netdev, "couldn't stop device");  in ems_usb_close()
863 	close_candev(netdev);  in ems_usb_close()
887 static int ems_usb_set_mode(struct net_device *netdev, enum can_mode mode)  in ems_usb_set_mode()  argument
889 	struct ems_usb *dev = netdev_priv(netdev);  in ems_usb_set_mode()
894 			netdev_warn(netdev, "couldn't start device");  in ems_usb_set_mode()
896 		if (netif_queue_stopped(netdev))  in ems_usb_set_mode()
897 			netif_wake_queue(netdev);  in ems_usb_set_mode()
907 static int ems_usb_set_bittiming(struct net_device *netdev)  in ems_usb_set_bittiming()  argument
909 	struct ems_usb *dev = netdev_priv(netdev);  in ems_usb_set_bittiming()
919 	netdev_info(netdev, "setting BTR0=0x%02x BTR1=0x%02x\n", btr0, btr1);  in ems_usb_set_bittiming()
963 	struct net_device *netdev;  in ems_usb_probe()  local
967 	netdev = alloc_candev(sizeof(struct ems_usb), MAX_TX_URBS);  in ems_usb_probe()
968 	if (!netdev) {  in ems_usb_probe()
973 	dev = netdev_priv(netdev);  in ems_usb_probe()
976 	dev->netdev = netdev;  in ems_usb_probe()
985 	netdev->netdev_ops = &ems_usb_netdev_ops;  in ems_usb_probe()
987 	netdev->flags |= IFF_ECHO; /* we support local echo */  in ems_usb_probe()
1012 	SET_NETDEV_DEV(netdev, &intf->dev);  in ems_usb_probe()
1018 		netdev_err(netdev, "couldn't initialize controller: %d\n", err);  in ems_usb_probe()
1022 	err = register_candev(netdev);  in ems_usb_probe()
1024 		netdev_err(netdev, "couldn't register CAN device: %d\n", err);  in ems_usb_probe()
1040 	free_candev(netdev);  in ems_usb_probe()
1055 		unregister_netdev(dev->netdev);  in ems_usb_disconnect()
1056 		free_candev(dev->netdev);  in ems_usb_disconnect()