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| -rw-r--r-- | include/VBox/vmm/pdmcommon.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmcommon.h b/include/VBox/vmm/pdmcommon.h new file mode 100644 index 00000000..aed1e956 --- /dev/null +++ b/include/VBox/vmm/pdmcommon.h @@ -0,0 +1,182 @@ +/** @file + * PDM - Pluggable Device Manager, Common Definitions & Types. + */ + +/* + * Copyright (C) 2006-2019 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_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)) ) \ + ) + + +/** 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. + * @remarks The caller will enter the device critical section. + * @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 /* !VBOX_INCLUDED_vmm_pdmcommon_h */ + |