Imported from /home/lorry/working-area/delta_VirtualBox/VirtualBox-4.2.4.tar.bz2.VirtualBox-4.2.4

1 files changed, 164 insertions, 0 deletions

diff --git a/include/VBox/vmm/pdmcommon.h b/include/VBox/vmm/pdmcommon.h
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+/** @file
+ * PDM - Pluggable Device Manager, Common Definitions & Types.
+ */
+
+/*
+ * Copyright (C) 2006-2010 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
+ * VirtualBox OSE distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ */
+
+#ifndef ___VBox_vmm_pdmcommon_h
+#define ___VBox_vmm_pdmcommon_h
+
+#include <VBox/types.h>
+
+
+/** @defgroup grp_pdm_common    Common Definitions & Types
+ * @ingroup grp_pdm
+ *
+ * Not all the types here are "common", they are here to work around header
+ * ordering issues.
+ *
+ * @{
+ */
+
+/** Makes a PDM structure version out of an unique magic value and major &
+ * minor version numbers.
+ *
+ * @returns 32-bit structure version number.
+ *
+ * @param   uMagic      16-bit magic value.  This must be unique.
+ * @param   uMajor      12-bit major version number.  Structures with different
+ *                      major numbers are not compatible.
+ * @param   uMinor      4-bit minor version number.  When only the minor version
+ *                      differs, the structures will be 100% backwards
+ *                      compatible.
+ */
+#define PDM_VERSION_MAKE(uMagic, uMajor, uMinor) \
+    ( ((uint32_t)(uMagic) << 16) | ((uint32_t)((uMajor) & 0xff) << 4) | ((uint32_t)((uMinor) & 0xf) << 0) )
+
+/** Checks if @a uVerMagic1 is compatible with @a uVerMagic2.
+ *
+ * @returns true / false.
+ * @param   uVerMagic1  Typically the runtime version of the struct.  This must
+ *                      have the same magic and major version as @a uVerMagic2
+ *                      and the minor version must be greater or equal to that
+ *                      of @a uVerMagic2.
+ * @param   uVerMagic2  Typically the version the code was compiled against.
+ *
+ * @remarks The parameters will be referenced more than once.
+ */
+#define PDM_VERSION_ARE_COMPATIBLE(uVerMagic1, uVerMagic2) \
+    (    (uVerMagic1) == (uVerMagic2) \
+      || (   (uVerMagic1) >= (uVerMagic2) \
+          && ((uVerMagic1) & UINT32_C(0xfffffff0)) == ((uVerMagic2) & UINT32_C(0xfffffff0)) ) \
+    )
+
+
+/** PDM Attach/Detach Callback Flags.
+ * Used by PDMDeviceAttach, PDMDeviceDetach, PDMDriverAttach, PDMDriverDetach,
+ * FNPDMDEVATTACH, FNPDMDEVDETACH, FNPDMDRVATTACH, FNPDMDRVDETACH and
+ * FNPDMDRVCONSTRUCT.
+ @{ */
+/** The attach/detach command is not a hotplug event. */
+#define PDM_TACH_FLAGS_NOT_HOT_PLUG     RT_BIT_32(0)
+/** Indicates that no attach or detach callbacks should be made.
+ * This is mostly for internal use.  */
+#define PDM_TACH_FLAGS_NO_CALLBACKS     RT_BIT_32(1)
+/* @} */
+
+
+/**
+ * Is asynchronous handling of suspend or power off notification completed?
+ *
+ * This is called to check whether the USB device has quiesced.  Don't deadlock.
+ * Avoid blocking.  Do NOT wait for anything.
+ *
+ * @returns true if done, false if more work to be done.
+ *
+ * @param   pUsbIns             The USB device instance.
+ *
+ * @thread  EMT(0)
+ */
+typedef DECLCALLBACK(bool) FNPDMUSBASYNCNOTIFY(PPDMUSBINS pUsbIns);
+/** Pointer to a FNPDMUSBASYNCNOTIFY. */
+typedef FNPDMUSBASYNCNOTIFY *PFNPDMUSBASYNCNOTIFY;
+
+/**
+ * Is asynchronous handling of suspend or power off notification completed?
+ *
+ * This is called to check whether the device has quiesced.  Don't deadlock.
+ * Avoid blocking.  Do NOT wait for anything.
+ *
+ * @returns true if done, false if more work to be done.
+ *
+ * @param   pDevIns             The device instance.
+ *
+ * @thread  EMT(0)
+ */
+typedef DECLCALLBACK(bool) FNPDMDEVASYNCNOTIFY(PPDMDEVINS pDevIns);
+/** Pointer to a FNPDMDEVASYNCNOTIFY. */
+typedef FNPDMDEVASYNCNOTIFY *PFNPDMDEVASYNCNOTIFY;
+
+/**
+ * Is asynchronous handling of suspend or power off notification completed?
+ *
+ * This is called to check whether the driver has quiesced.  Don't deadlock.
+ * Avoid blocking.  Do NOT wait for anything.
+ *
+ * @returns true if done, false if more work to be done.
+ *
+ * @param   pDrvIns             The driver instance.
+ *
+ * @thread  EMT(0)
+ */
+typedef DECLCALLBACK(bool) FNPDMDRVASYNCNOTIFY(PPDMDRVINS pDrvIns);
+/** Pointer to a FNPDMDRVASYNCNOTIFY. */
+typedef FNPDMDRVASYNCNOTIFY *PFNPDMDRVASYNCNOTIFY;
+
+
+/**
+ * The ring-0 driver request handler.
+ *
+ * @returns VBox status code. PDMDevHlpCallR0 will return this.
+ * @param   pDevIns     The device instance (the ring-0 mapping).
+ * @param   uOperation  The operation.
+ * @param   u64Arg      Optional integer argument for the operation.
+ */
+typedef DECLCALLBACK(int) FNPDMDEVREQHANDLERR0(PPDMDEVINS pDevIns, uint32_t uOperation, uint64_t u64Arg);
+/** Ring-0 pointer to a FNPDMDEVREQHANDLERR0. */
+typedef R0PTRTYPE(FNPDMDEVREQHANDLERR0 *) PFNPDMDEVREQHANDLERR0;
+
+/**
+ * The ring-0 driver request handler.
+ *
+ * @returns VBox status code. PDMDrvHlpCallR0 will return this.
+ * @param   pDrvIns     The driver instance (the ring-0 mapping).
+ * @param   uOperation  The operation.
+ * @param   u64Arg      Optional integer argument for the operation.
+ */
+typedef DECLCALLBACK(int) FNPDMDRVREQHANDLERR0(PPDMDRVINS pDrvIns, uint32_t uOperation, uint64_t u64Arg);
+/** Ring-0 pointer to a FNPDMDRVREQHANDLERR0. */
+typedef R0PTRTYPE(FNPDMDRVREQHANDLERR0 *) PFNPDMDRVREQHANDLERR0;
+
+
+/** @} */
+
+#endif
+