diff options
Diffstat (limited to 'drivers/xen/xenbus/xenbus_probe.h')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h new file mode 100644 index 000000000000..e09b19415a40 --- /dev/null +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -0,0 +1,74 @@ +/****************************************************************************** + * xenbus_probe.h + * + * Talks to Xen Store to figure out what devices we have. + * + * Copyright (C) 2005 Rusty Russell, IBM Corporation + * Copyright (C) 2005 XenSource Ltd. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef _XENBUS_PROBE_H +#define _XENBUS_PROBE_H + +#ifdef CONFIG_XEN_BACKEND +extern void xenbus_backend_suspend(int (*fn)(struct device *, void *)); +extern void xenbus_backend_resume(int (*fn)(struct device *, void *)); +extern void xenbus_backend_probe_and_watch(void); +extern int xenbus_backend_bus_register(void); +extern void xenbus_backend_bus_unregister(void); +#else +static inline void xenbus_backend_suspend(int (*fn)(struct device *, void *)) {} +static inline void xenbus_backend_resume(int (*fn)(struct device *, void *)) {} +static inline void xenbus_backend_probe_and_watch(void) {} +static inline int xenbus_backend_bus_register(void) { return 0; } +static inline void xenbus_backend_bus_unregister(void) {} +#endif + +struct xen_bus_type +{ + char *root; + unsigned int levels; + int (*get_bus_id)(char bus_id[BUS_ID_SIZE], const char *nodename); + int (*probe)(const char *type, const char *dir); + struct bus_type bus; +}; + +extern int xenbus_match(struct device *_dev, struct device_driver *_drv); +extern int xenbus_dev_probe(struct device *_dev); +extern int xenbus_dev_remove(struct device *_dev); +extern int xenbus_register_driver_common(struct xenbus_driver *drv, + struct xen_bus_type *bus, + struct module *owner, + const char *mod_name); +extern int xenbus_probe_node(struct xen_bus_type *bus, + const char *type, + const char *nodename); +extern int xenbus_probe_devices(struct xen_bus_type *bus); + +extern void xenbus_dev_changed(const char *node, struct xen_bus_type *bus); + +#endif |