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129 lines
2.7 KiB
129 lines
2.7 KiB
/* |
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* Copyright (C) 2003-2008 Takahiro Hirofuchi |
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* |
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* This is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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*/ |
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#ifndef __USBIP_VHCI_H |
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#define __USBIP_VHCI_H |
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#include <linux/device.h> |
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#include <linux/list.h> |
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#include <linux/spinlock.h> |
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#include <linux/sysfs.h> |
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#include <linux/types.h> |
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#include <linux/usb.h> |
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#include <linux/usb/hcd.h> |
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#include <linux/wait.h> |
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struct vhci_device { |
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struct usb_device *udev; |
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/* |
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* devid specifies a remote usb device uniquely instead |
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* of combination of busnum and devnum. |
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*/ |
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__u32 devid; |
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/* speed of a remote device */ |
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enum usb_device_speed speed; |
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/* vhci root-hub port to which this device is attached */ |
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__u32 rhport; |
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struct usbip_device ud; |
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/* lock for the below link lists */ |
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spinlock_t priv_lock; |
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/* vhci_priv is linked to one of them. */ |
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struct list_head priv_tx; |
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struct list_head priv_rx; |
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/* vhci_unlink is linked to one of them */ |
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struct list_head unlink_tx; |
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struct list_head unlink_rx; |
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/* vhci_tx thread sleeps for this queue */ |
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wait_queue_head_t waitq_tx; |
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}; |
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/* urb->hcpriv, use container_of() */ |
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struct vhci_priv { |
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unsigned long seqnum; |
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struct list_head list; |
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struct vhci_device *vdev; |
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struct urb *urb; |
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}; |
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struct vhci_unlink { |
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/* seqnum of this request */ |
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unsigned long seqnum; |
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struct list_head list; |
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/* seqnum of the unlink target */ |
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unsigned long unlink_seqnum; |
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}; |
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/* Number of supported ports. Value has an upperbound of USB_MAXCHILDREN */ |
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#define VHCI_NPORTS 8 |
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/* for usb_bus.hcpriv */ |
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struct vhci_hcd { |
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spinlock_t lock; |
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u32 port_status[VHCI_NPORTS]; |
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unsigned resuming:1; |
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unsigned long re_timeout; |
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atomic_t seqnum; |
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/* |
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* NOTE: |
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* wIndex shows the port number and begins from 1. |
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* But, the index of this array begins from 0. |
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*/ |
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struct vhci_device vdev[VHCI_NPORTS]; |
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}; |
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extern struct vhci_hcd *the_controller; |
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extern const struct attribute_group dev_attr_group; |
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/* vhci_hcd.c */ |
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void rh_port_connect(int rhport, enum usb_device_speed speed); |
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/* vhci_rx.c */ |
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struct urb *pickup_urb_and_free_priv(struct vhci_device *vdev, __u32 seqnum); |
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int vhci_rx_loop(void *data); |
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/* vhci_tx.c */ |
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int vhci_tx_loop(void *data); |
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static inline struct vhci_device *port_to_vdev(__u32 port) |
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{ |
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return &the_controller->vdev[port]; |
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} |
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static inline struct vhci_hcd *hcd_to_vhci(struct usb_hcd *hcd) |
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{ |
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return (struct vhci_hcd *) (hcd->hcd_priv); |
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} |
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static inline struct usb_hcd *vhci_to_hcd(struct vhci_hcd *vhci) |
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{ |
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return container_of((void *) vhci, struct usb_hcd, hcd_priv); |
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} |
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static inline struct device *vhci_dev(struct vhci_hcd *vhci) |
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{ |
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return vhci_to_hcd(vhci)->self.controller; |
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} |
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#endif /* __USBIP_VHCI_H */
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