staging:iio:trigger handle name attr in core, remove old alloc and register any contr...
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / usbip / stub.h
blob6592aa2ad15cacaf3b76c3370b0caf7bb0b52bb4
1 /*
2 * Copyright (C) 2003-2008 Takahiro Hirofuchi
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.
9 * This is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
17 * USA.
20 #include <linux/list.h>
21 #include <linux/slab.h>
22 #include <linux/spinlock.h>
23 #include <linux/types.h>
24 #include <linux/usb.h>
25 #include <linux/wait.h>
27 #define STUB_BUSID_OTHER 0
28 #define STUB_BUSID_REMOV 1
29 #define STUB_BUSID_ADDED 2
30 #define STUB_BUSID_ALLOC 3
32 struct stub_device {
33 struct usb_interface *interface;
34 struct usb_device *udev;
35 struct list_head list;
37 struct usbip_device ud;
38 __u32 devid;
41 * stub_priv preserves private data of each urb.
42 * It is allocated as stub_priv_cache and assigned to urb->context.
44 * stub_priv is always linked to any one of 3 lists;
45 * priv_init: linked to this until the comletion of a urb.
46 * priv_tx : linked to this after the completion of a urb.
47 * priv_free: linked to this after the sending of the result.
49 * Any of these list operations should be locked by priv_lock.
51 spinlock_t priv_lock;
52 struct list_head priv_init;
53 struct list_head priv_tx;
54 struct list_head priv_free;
56 /* see comments for unlinking in stub_rx.c */
57 struct list_head unlink_tx;
58 struct list_head unlink_free;
60 wait_queue_head_t tx_waitq;
63 /* private data into urb->priv */
64 struct stub_priv {
65 unsigned long seqnum;
66 struct list_head list;
67 struct stub_device *sdev;
68 struct urb *urb;
70 int unlinking;
73 struct stub_unlink {
74 unsigned long seqnum;
75 struct list_head list;
76 __u32 status;
79 #define BUSID_SIZE 20
80 struct bus_id_priv {
81 char name[BUSID_SIZE];
82 char status;
83 int interf_count;
84 struct stub_device *sdev;
85 char shutdown_busid;
88 /* stub_priv is allocated from stub_priv_cache */
89 extern struct kmem_cache *stub_priv_cache;
91 /* stub_dev.c */
92 extern struct usb_driver stub_driver;
94 /* stub_main.c */
95 struct bus_id_priv *get_busid_priv(const char *busid);
96 int del_match_busid(char *busid);
97 void stub_device_cleanup_urbs(struct stub_device *sdev);
99 /* stub_rx.c */
100 int stub_rx_loop(void *data);
102 /* stub_tx.c */
103 void stub_enqueue_ret_unlink(struct stub_device *sdev, __u32 seqnum,
104 __u32 status);
105 void stub_complete(struct urb *urb);
106 int stub_tx_loop(void *data);