sys/arch/xen/xenbus/xenbus_comms.h

   1 /* $NetBSD: xenbus_comms.h,v 1.4 2008/04/16 18:41:48 cegger Exp $ */
   2 /*
   3  * Private include for xenbus communications.
   4  *
   5  * Copyright (C) 2005 Rusty Russell, IBM Corporation
   6  *
   7  * This file may be distributed separately from the Linux kernel, or
   8  * incorporated into other software packages, subject to the following license:
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this source file (the "Software"), to deal in the Software without
  12  * restriction, including without limitation the rights to use, copy, modify,
  13  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
  14  * and to permit persons to whom the Software is furnished to do so, subject to
  15  * the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  25  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  26  * IN THE SOFTWARE.
  27  */
  28
  29 #ifndef _XENBUS_COMMS_H
  30 #define _XENBUS_COMMS_H
  31
  32 void xenbus_kernfs_init(void);
  33 int xs_init(device_t dev);
  34 int xb_init_comms(device_t dev);
  35
  36 /* Low level routines. */
  37 int xb_write(const void *data, unsigned len);
  38 int xb_read(void *data, unsigned len);
  39 int xs_input_avail(void);
  40
  41 extern struct xenstore_domain_interface *xenstore_interface;
  42
  43 #endif /* _XENBUS_COMMS_H */
  44
  45 /*
  46  * Local variables:
  47  *  c-file-style: "linux"
  48  *  indent-tabs-mode: t
  49  *  c-indent-level: 8
  50  *  c-basic-offset: 8
  51  *  tab-width: 8
  52  * End:
  53  */