blob: afc3b1a7188199bf29496fbb6e9933d6f3d37952 [file] [log] [blame]
* Copyright (C) 2003-2008 Takahiro Hirofuchi
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
#include <linux/platform_device.h>
#include <linux/usb/hcd.h>
struct vhci_device {
struct usb_device *udev;
* devid specifies a remote usb device uniquely instead
* of combination of busnum and devnum.
__u32 devid;
/* speed of a remote device */
enum usb_device_speed speed;
/* vhci root-hub port to which this device is attached */
__u32 rhport;
struct usbip_device ud;
/* lock for the below link lists */
spinlock_t priv_lock;
/* vhci_priv is linked to one of them. */
struct list_head priv_tx;
struct list_head priv_rx;
/* vhci_unlink is linked to one of them */
struct list_head unlink_tx;
struct list_head unlink_rx;
/* vhci_tx thread sleeps for this queue */
wait_queue_head_t waitq_tx;
/* urb->hcpriv, use container_of() */
struct vhci_priv {
unsigned long seqnum;
struct list_head list;
struct vhci_device *vdev;
struct urb *urb;
struct vhci_unlink {
/* seqnum of this request */
unsigned long seqnum;
struct list_head list;
/* seqnum of the unlink target */
unsigned long unlink_seqnum;
* The number of ports is less than 16 ?
* USB_MAXCHILDREN is statically defined to 16 in usb.h. Its maximum value
* would be 31 because the event_bits[1] of struct usb_hub is defined as
* unsigned long in hub.h
#define VHCI_NPORTS 8
/* for usb_bus.hcpriv */
struct vhci_hcd {
spinlock_t lock;
u32 port_status[VHCI_NPORTS];
unsigned resuming:1;
unsigned long re_timeout;
atomic_t seqnum;
* wIndex shows the port number and begins from 1.
* But, the index of this array begins from 0.
struct vhci_device vdev[VHCI_NPORTS];
extern struct vhci_hcd *the_controller;
extern struct attribute_group dev_attr_group;
/* prototype declaration */
/* vhci_hcd.c */
void rh_port_connect(int rhport, enum usb_device_speed speed);
void rh_port_disconnect(int rhport);
void vhci_rx_loop(struct usbip_task *ut);
void vhci_tx_loop(struct usbip_task *ut);
struct urb *pickup_urb_and_free_priv(struct vhci_device *vdev,
__u32 seqnum);
#define hardware (&the_controller->
static inline struct vhci_device *port_to_vdev(__u32 port)
return &the_controller->vdev[port];
static inline struct vhci_hcd *hcd_to_vhci(struct usb_hcd *hcd)
return (struct vhci_hcd *) (hcd->hcd_priv);
static inline struct usb_hcd *vhci_to_hcd(struct vhci_hcd *vhci)
return container_of((void *) vhci, struct usb_hcd, hcd_priv);
static inline struct device *vhci_dev(struct vhci_hcd *vhci)
return vhci_to_hcd(vhci)->self.controller;