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/* $Id: VBoxSampleDevice.cpp $ */
/** @file
* VBox Sample Device.
*/
/*
* Copyright (C) 2009-2019 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_MISC
#include <VBox/vmm/pdmdev.h>
#include <VBox/version.h>
#include <iprt/errcore.h>
#include <VBox/log.h>
#include <iprt/assert.h>
/*********************************************************************************************************************************
* Structures and Typedefs *
*********************************************************************************************************************************/
/**
* Device Instance Data.
*/
typedef struct VBOXSAMPLEDEVICE
{
uint32_t Whatever;
} VBOXSAMPLEDEVICE;
typedef VBOXSAMPLEDEVICE *PVBOXSAMPLEDEVICE;
static DECLCALLBACK(int) devSampleDestruct(PPDMDEVINS pDevIns)
{
/*
* Check the versions here as well since the destructor is *always* called.
*/
PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
return VINF_SUCCESS;
}
static DECLCALLBACK(int) devSampleConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
{
/*
* Check that the device instance and device helper structures are compatible.
*/
PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
NOREF(pCfg);
/*
* Initialize the instance data so that the destructor won't mess up.
*/
PVBOXSAMPLEDEVICE pThis = PDMINS_2_DATA(pDevIns, PVBOXSAMPLEDEVICE);
pThis->Whatever = 0;
/*
* Validate and read the configuration.
*/
PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "Whatever1|Whatever2", "");
/*
* Use the instance number if necessary (not for this device, which in
* g_DeviceSample below declares a maximum instance count of 1).
*/
NOREF(iInstance);
return VINF_SUCCESS;
}
/**
* The device registration structure.
*/
static const PDMDEVREG g_DeviceSample =
{
/* u32Version */
PDM_DEVREG_VERSION,
/* szName */
"sample",
/* szRCMod */
"",
/* szR0Mod */
"",
/* pszDescription */
"VBox Sample Device.",
/* fFlags */
PDM_DEVREG_FLAGS_DEFAULT_BITS,
/* fClass */
PDM_DEVREG_CLASS_MISC,
/* cMaxInstances */
1,
/* cbInstance */
sizeof(VBOXSAMPLEDEVICE),
/* pfnConstruct */
devSampleConstruct,
/* pfnDestruct */
devSampleDestruct,
/* pfnRelocate */
NULL,
/* pfnMemSetup */
NULL,
/* pfnPowerOn */
NULL,
/* pfnReset */
NULL,
/* pfnSuspend */
NULL,
/* pfnResume */
NULL,
/* pfnAttach */
NULL,
/* pfnDetach */
NULL,
/* pfnQueryInterface */
NULL,
/* pfnInitComplete */
NULL,
/* pfnPowerOff */
NULL,
/* pfnSoftReset */
NULL,
/* u32VersionEnd */
PDM_DEVREG_VERSION
};
/**
* Register devices provided by the plugin.
*
* @returns VBox status code.
* @param pCallbacks Pointer to the callback table.
* @param u32Version VBox version number.
*/
extern "C" DECLEXPORT(int) VBoxDevicesRegister(PPDMDEVREGCB pCallbacks, uint32_t u32Version)
{
LogFlow(("VBoxSampleDevice::VBoxDevicesRegister: u32Version=%#x pCallbacks->u32Version=%#x\n", u32Version, pCallbacks->u32Version));
AssertLogRelMsgReturn(u32Version >= VBOX_VERSION,
("VirtualBox version %#x, expected %#x or higher\n", u32Version, VBOX_VERSION),
VERR_VERSION_MISMATCH);
AssertLogRelMsgReturn(pCallbacks->u32Version == PDM_DEVREG_CB_VERSION,
("callback version %#x, expected %#x\n", pCallbacks->u32Version, PDM_DEVREG_CB_VERSION),
VERR_VERSION_MISMATCH);
return pCallbacks->pfnRegister(pCallbacks, &g_DeviceSample);
}
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