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xenbus_comms.h revision 1.7 
      1 /* $NetBSD: xenbus_comms.h,v 1.7 2020/05/06 16:50:13 bouyer 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 void xb_suspend_comms(device_t dev);
     36 void xb_resume_comms(device_t dev);
     37 
     38 void xb_xenstored_make_ready(void);
     39 
     40 /* Low level routines. */
     41 int xb_write(const void *data, unsigned len);
     42 int xb_read(void *data, unsigned len);
     43 int xs_input_avail(void);
     44 
     45 extern struct xenstore_domain_interface *xenstore_interface;
     46 
     47 extern int xenstored_ready;
     48 
     49 #endif /* _XENBUS_COMMS_H */
     50 
     51 /*
     52  * Local variables:
     53  *  c-file-style: "linux"
     54  *  indent-tabs-mode: t
     55  *  c-indent-level: 8
     56  *  c-basic-offset: 8
     57  *  tab-width: 8
     58  * End:
     59  */
     60