blob: 146f857a36f83b5a2f4646424c1251a23abf1b07 [file] [log] [blame]
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -07001/******************************************************************************
2 * xenbus_probe.h
3 *
4 * Talks to Xen Store to figure out what devices we have.
5 *
6 * Copyright (C) 2005 Rusty Russell, IBM Corporation
7 * Copyright (C) 2005 XenSource Ltd.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License version 2
11 * as published by the Free Software Foundation; or, when distributed
12 * separately from the Linux kernel or incorporated into other
13 * software packages, subject to the following license:
14 *
15 * Permission is hereby granted, free of charge, to any person obtaining a copy
16 * of this source file (the "Software"), to deal in the Software without
17 * restriction, including without limitation the rights to use, copy, modify,
18 * merge, publish, distribute, sublicense, and/or sell copies of the Software,
19 * and to permit persons to whom the Software is furnished to do so, subject to
20 * the following conditions:
21 *
22 * The above copyright notice and this permission notice shall be included in
23 * all copies or substantial portions of the Software.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
26 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
28 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
30 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
31 * IN THE SOFTWARE.
32 */
33
34#ifndef _XENBUS_PROBE_H
35#define _XENBUS_PROBE_H
36
Kay Sievers2a678cc2009-01-06 10:44:34 -080037#define XEN_BUS_ID_SIZE 20
38
Ruslan Pisarev822a2592011-07-26 14:17:01 +030039struct xen_bus_type {
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -070040 char *root;
41 unsigned int levels;
Kay Sievers2a678cc2009-01-06 10:44:34 -080042 int (*get_bus_id)(char bus_id[XEN_BUS_ID_SIZE], const char *nodename);
Ian Campbell6bac7f92010-12-10 14:39:15 +000043 int (*probe)(struct xen_bus_type *bus, const char *type,
44 const char *dir);
45 void (*otherend_changed)(struct xenbus_watch *watch, const char **vec,
46 unsigned int len);
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -070047 struct bus_type bus;
48};
49
Aurelien Chartier33c11742013-05-28 18:09:55 +010050enum xenstore_init {
51 XS_UNKNOWN,
52 XS_PV,
53 XS_HVM,
54 XS_LOCAL,
55};
56
Bastian Blankcc85e932011-06-29 14:39:26 +020057extern struct device_attribute xenbus_dev_attrs[];
58
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -070059extern int xenbus_match(struct device *_dev, struct device_driver *_drv);
60extern int xenbus_dev_probe(struct device *_dev);
61extern int xenbus_dev_remove(struct device *_dev);
62extern int xenbus_register_driver_common(struct xenbus_driver *drv,
Jan Beulich73db1442011-12-22 09:08:13 +000063 struct xen_bus_type *bus);
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -070064extern int xenbus_probe_node(struct xen_bus_type *bus,
65 const char *type,
66 const char *nodename);
67extern int xenbus_probe_devices(struct xen_bus_type *bus);
68
69extern void xenbus_dev_changed(const char *node, struct xen_bus_type *bus);
70
Ian Campbell2de06cc2009-02-09 12:05:51 -080071extern void xenbus_dev_shutdown(struct device *_dev);
72
Kazuhiro SUZUKIc7853ae2011-02-18 14:43:07 -080073extern int xenbus_dev_suspend(struct device *dev);
Ian Campbell2de06cc2009-02-09 12:05:51 -080074extern int xenbus_dev_resume(struct device *dev);
Kazuhiro SUZUKIc7853ae2011-02-18 14:43:07 -080075extern int xenbus_dev_cancel(struct device *dev);
Ian Campbell2de06cc2009-02-09 12:05:51 -080076
77extern void xenbus_otherend_changed(struct xenbus_watch *watch,
78 const char **vec, unsigned int len,
79 int ignore_on_shutdown);
80
81extern int xenbus_read_otherend_details(struct xenbus_device *xendev,
82 char *id_node, char *path_node);
83
Daniel De Graaf2c5d37d2011-12-19 14:55:14 -050084void xenbus_ring_ops_init(void);
85
Jeremy Fitzhardinge4bac07c2007-07-17 18:37:06 -070086#endif