1#- 2# Copyright (c) 2008 Doug Rabson 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25# 26# 27 28#include <sys/bus.h> 29 30#include <machine/atomic.h> 31 32#include <xen/xen-os.h> 33#include <xen/evtchn.h> 34#include <xen/xenbus/xenbusvar.h> 35 36INTERFACE xenbus; 37 38/** 39 * \brief Callback triggered when the state of the otherend 40 * of a split device changes. 41 * 42 * \param _dev NewBus device_t for this XenBus device whose otherend's 43 * state has changed.. 44 * \param _newstate The new state of the otherend device. 45 */ 46METHOD void otherend_changed { 47 device_t _dev; 48 enum xenbus_state _newstate; 49}; 50 51/** 52 * \brief Callback triggered when the XenStore tree of the local end 53 * of a split device changes. 54 * 55 * \param _dev NewBus device_t for this XenBus device whose otherend's 56 * state has changed.. 57 * \param _path The tree relative sub-path to the modified node. The empty 58 * string indicates the root of the tree was destroyed. 59 */ 60METHOD void localend_changed { 61 device_t _dev; 62 const char * _path; 63} DEFAULT xenbus_localend_changed; 64