| 1 | /* SPDX-License-Identifier: MIT */ |
| 2 | /***************************************************************************** |
| 3 | * xenbus.h |
| 4 | * |
| 5 | * Xenbus protocol details. |
| 6 | * |
| 7 | * Copyright (C) 2005 XenSource Ltd. |
| 8 | */ |
| 9 | |
| 10 | #ifndef _XEN_PUBLIC_IO_XENBUS_H |
| 11 | #define _XEN_PUBLIC_IO_XENBUS_H |
| 12 | |
| 13 | /* |
| 14 | * The state of either end of the Xenbus, i.e. the current communication |
| 15 | * status of initialisation across the bus. States here imply nothing about |
| 16 | * the state of the connection between the driver and the kernel's device |
| 17 | * layers. |
| 18 | */ |
| 19 | enum xenbus_state { |
| 20 | XenbusStateUnknown = 0, |
| 21 | |
| 22 | XenbusStateInitialising = 1, |
| 23 | |
| 24 | /* |
| 25 | * InitWait: Finished early initialisation but waiting for information |
| 26 | * from the peer or hotplug scripts. |
| 27 | */ |
| 28 | XenbusStateInitWait = 2, |
| 29 | |
| 30 | /* |
| 31 | * Initialised: Waiting for a connection from the peer. |
| 32 | */ |
| 33 | XenbusStateInitialised = 3, |
| 34 | |
| 35 | XenbusStateConnected = 4, |
| 36 | |
| 37 | /* |
| 38 | * Closing: The device is being closed due to an error or an unplug event. |
| 39 | */ |
| 40 | XenbusStateClosing = 5, |
| 41 | |
| 42 | XenbusStateClosed = 6, |
| 43 | |
| 44 | /* |
| 45 | * Reconfiguring: The device is being reconfigured. |
| 46 | */ |
| 47 | XenbusStateReconfiguring = 7, |
| 48 | |
| 49 | XenbusStateReconfigured = 8 |
| 50 | }; |
| 51 | typedef enum xenbus_state XenbusState; |
| 52 | |
| 53 | #endif /* _XEN_PUBLIC_IO_XENBUS_H */ |
| 54 | |
| 55 | /* |
| 56 | * Local variables: |
| 57 | * mode: C |
| 58 | * c-file-style: "BSD" |
| 59 | * c-basic-offset: 4 |
| 60 | * tab-width: 4 |
| 61 | * indent-tabs-mode: nil |
| 62 | * End: |
| 63 | */ |