| 1 | /* $NetBSD: xenbus.h,v 1.1.1.2 2011/12/07 14:41:17 cegger Exp $ */ |
| 2 | /***************************************************************************** |
| 3 | * xenbus.h |
| 4 | * |
| 5 | * Xenbus protocol details. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 8 | * of this software and associated documentation files (the "Software"), to |
| 9 | * deal in the Software without restriction, including without limitation the |
| 10 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 11 | * sell copies of the Software, and to permit persons to whom the Software is |
| 12 | * furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 22 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 23 | * DEALINGS IN THE SOFTWARE. |
| 24 | * |
| 25 | * Copyright (C) 2005 XenSource Ltd. |
| 26 | */ |
| 27 | |
| 28 | #ifndef _XEN_PUBLIC_IO_XENBUS_H |
| 29 | #define _XEN_PUBLIC_IO_XENBUS_H |
| 30 | |
| 31 | /* |
| 32 | * The state of either end of the Xenbus, i.e. the current communication |
| 33 | * status of initialisation across the bus. States here imply nothing about |
| 34 | * the state of the connection between the driver and the kernel's device |
| 35 | * layers. |
| 36 | */ |
| 37 | enum xenbus_state { |
| 38 | XenbusStateUnknown = 0, |
| 39 | |
| 40 | XenbusStateInitialising = 1, |
| 41 | |
| 42 | /* |
| 43 | * InitWait: Finished early initialisation but waiting for information |
| 44 | * from the peer or hotplug scripts. |
| 45 | */ |
| 46 | XenbusStateInitWait = 2, |
| 47 | |
| 48 | /* |
| 49 | * Initialised: Waiting for a connection from the peer. |
| 50 | */ |
| 51 | XenbusStateInitialised = 3, |
| 52 | |
| 53 | XenbusStateConnected = 4, |
| 54 | |
| 55 | /* |
| 56 | * Closing: The device is being closed due to an error or an unplug event. |
| 57 | */ |
| 58 | XenbusStateClosing = 5, |
| 59 | |
| 60 | XenbusStateClosed = 6, |
| 61 | |
| 62 | /* |
| 63 | * Reconfiguring: The device is being reconfigured. |
| 64 | */ |
| 65 | XenbusStateReconfiguring = 7, |
| 66 | |
| 67 | XenbusStateReconfigured = 8 |
| 68 | }; |
| 69 | typedef enum xenbus_state XenbusState; |
| 70 | |
| 71 | #endif /* _XEN_PUBLIC_IO_XENBUS_H */ |
| 72 | |
| 73 | /* |
| 74 | * Local variables: |
| 75 | * mode: C |
| 76 | * c-set-style: "BSD" |
| 77 | * c-basic-offset: 4 |
| 78 | * tab-width: 4 |
| 79 | * indent-tabs-mode: nil |
| 80 | * End: |
| 81 | */ |
| 82 | |