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/** @file
* PDM - Pluggable Device Manager, Common Definitions & Types.
*/
/*
* Copyright (C) 2006-2025 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox 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.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef VBOX_INCLUDED_vmm_pdmcommon_h
#define VBOX_INCLUDED_vmm_pdmcommon_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#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) )
/**
* Version of PDM_VERSION_MAKE that's compatible with the preprocessor.
*
* @returns 32-bit structure version number.
*
* @param uMagic 16-bit magic value, no suffix. This must be unique.
* @param uMajor 12-bit major version number, no suffix. Structures with
* different major numbers are not compatible.
* @param uMinor 4-bit minor version number, no suffix. When only the
* minor version differs, the structures will be 100%
* backwards compatible.
*/
#define PDM_VERSION_MAKE_PP(uMagic, uMajor, uMinor) \
( (UINT32_C(uMagic) << 16) | ((UINT32_C(uMajor) & UINT32_C(0xff)) << 4) | ((UINT32_C(uMinor) & UINT32_C(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)) ) \
)
/** @name 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 DECLCALLBACKTYPE(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.
* @remarks The caller will enter the device critical section.
* @thread EMT(0)
*/
typedef DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(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 DECLCALLBACKTYPE(int, FNPDMDRVREQHANDLERR0,(PPDMDRVINS pDrvIns, uint32_t uOperation, uint64_t u64Arg));
/** Ring-0 pointer to a FNPDMDRVREQHANDLERR0. */
typedef R0PTRTYPE(FNPDMDRVREQHANDLERR0 *) PFNPDMDRVREQHANDLERR0;
/** @} */
#endif /* !VBOX_INCLUDED_vmm_pdmcommon_h */
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