Commit | Line | Data |
---|---|---|
04679b34 TH |
1 | /* |
2 | * Copyright (C) 2003-2008 Takahiro Hirofuchi | |
3 | * | |
4 | * This is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
04679b34 TH |
9 | */ |
10 | ||
306dac69 TK |
11 | #ifndef __USBIP_VHCI_H |
12 | #define __USBIP_VHCI_H | |
13 | ||
7aaacb43 | 14 | #include <linux/device.h> |
15 | #include <linux/list.h> | |
16 | #include <linux/spinlock.h> | |
17 | #include <linux/sysfs.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/usb.h> | |
27729aad | 20 | #include <linux/usb/hcd.h> |
7aaacb43 | 21 | #include <linux/wait.h> |
04679b34 | 22 | |
04679b34 TH |
23 | struct vhci_device { |
24 | struct usb_device *udev; | |
25 | ||
26 | /* | |
27 | * devid specifies a remote usb device uniquely instead | |
28 | * of combination of busnum and devnum. | |
29 | */ | |
30 | __u32 devid; | |
31 | ||
32 | /* speed of a remote device */ | |
33 | enum usb_device_speed speed; | |
34 | ||
ddbc9bc9 | 35 | /* vhci root-hub port to which this device is attached */ |
04679b34 TH |
36 | __u32 rhport; |
37 | ||
38 | struct usbip_device ud; | |
39 | ||
04679b34 TH |
40 | /* lock for the below link lists */ |
41 | spinlock_t priv_lock; | |
42 | ||
43 | /* vhci_priv is linked to one of them. */ | |
44 | struct list_head priv_tx; | |
45 | struct list_head priv_rx; | |
46 | ||
47 | /* vhci_unlink is linked to one of them */ | |
48 | struct list_head unlink_tx; | |
49 | struct list_head unlink_rx; | |
50 | ||
51 | /* vhci_tx thread sleeps for this queue */ | |
52 | wait_queue_head_t waitq_tx; | |
53 | }; | |
54 | ||
04679b34 TH |
55 | /* urb->hcpriv, use container_of() */ |
56 | struct vhci_priv { | |
57 | unsigned long seqnum; | |
58 | struct list_head list; | |
59 | ||
60 | struct vhci_device *vdev; | |
61 | struct urb *urb; | |
62 | }; | |
63 | ||
04679b34 TH |
64 | struct vhci_unlink { |
65 | /* seqnum of this request */ | |
66 | unsigned long seqnum; | |
67 | ||
68 | struct list_head list; | |
69 | ||
70 | /* seqnum of the unlink target */ | |
71 | unsigned long unlink_seqnum; | |
72 | }; | |
73 | ||
1132b9aa | 74 | /* Number of supported ports. Value has an upperbound of USB_MAXCHILDREN */ |
04679b34 TH |
75 | #define VHCI_NPORTS 8 |
76 | ||
77 | /* for usb_bus.hcpriv */ | |
78 | struct vhci_hcd { | |
ddbc9bc9 | 79 | spinlock_t lock; |
04679b34 | 80 | |
ddbc9bc9 | 81 | u32 port_status[VHCI_NPORTS]; |
04679b34 | 82 | |
ddbc9bc9 | 83 | unsigned resuming:1; |
84 | unsigned long re_timeout; | |
04679b34 TH |
85 | |
86 | atomic_t seqnum; | |
87 | ||
88 | /* | |
89 | * NOTE: | |
90 | * wIndex shows the port number and begins from 1. | |
91 | * But, the index of this array begins from 0. | |
92 | */ | |
93 | struct vhci_device vdev[VHCI_NPORTS]; | |
04679b34 TH |
94 | }; |
95 | ||
04679b34 | 96 | extern struct vhci_hcd *the_controller; |
cf77acfc | 97 | extern const struct attribute_group dev_attr_group; |
04679b34 | 98 | |
04679b34 TH |
99 | /* vhci_hcd.c */ |
100 | void rh_port_connect(int rhport, enum usb_device_speed speed); | |
04679b34 | 101 | |
fc184a35 | 102 | /* vhci_rx.c */ |
ddbc9bc9 | 103 | struct urb *pickup_urb_and_free_priv(struct vhci_device *vdev, __u32 seqnum); |
fc184a35 | 104 | int vhci_rx_loop(void *data); |
b92a5e23 | 105 | |
fc184a35 | 106 | /* vhci_tx.c */ |
107 | int vhci_tx_loop(void *data); | |
04679b34 TH |
108 | |
109 | static inline struct vhci_device *port_to_vdev(__u32 port) | |
110 | { | |
111 | return &the_controller->vdev[port]; | |
112 | } | |
113 | ||
114 | static inline struct vhci_hcd *hcd_to_vhci(struct usb_hcd *hcd) | |
115 | { | |
116 | return (struct vhci_hcd *) (hcd->hcd_priv); | |
117 | } | |
118 | ||
119 | static inline struct usb_hcd *vhci_to_hcd(struct vhci_hcd *vhci) | |
120 | { | |
121 | return container_of((void *) vhci, struct usb_hcd, hcd_priv); | |
122 | } | |
123 | ||
124 | static inline struct device *vhci_dev(struct vhci_hcd *vhci) | |
125 | { | |
126 | return vhci_to_hcd(vhci)->self.controller; | |
127 | } | |
306dac69 TK |
128 | |
129 | #endif /* __USBIP_VHCI_H */ |