128 lines
2.6 KiB
C
128 lines
2.6 KiB
C
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/** @file
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Function declaration and internal data for XenBusDxe.
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Copyright (C) 2014, Citrix Ltd.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_XENBUS_DXE_H__
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#define __EFI_XENBUS_DXE_H__
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#include <Uefi.h>
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//
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// Libraries
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//
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BaseLib.h>
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#include <Library/UefiLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/DebugLib.h>
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//
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// UEFI Driver Model Protocols
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//
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#include <Protocol/DriverBinding.h>
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//
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// Consumed Protocols
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//
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#include <Protocol/XenIo.h>
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//
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// Produced Protocols
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//
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#include <Protocol/XenBus.h>
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//
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// Driver Version
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//
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#define XENBUS_DXE_VERSION 0x00000010
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//
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// Protocol instances
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//
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extern EFI_DRIVER_BINDING_PROTOCOL gXenBusDxeDriverBinding;
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extern EFI_COMPONENT_NAME2_PROTOCOL gXenBusDxeComponentName2;
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extern EFI_COMPONENT_NAME_PROTOCOL gXenBusDxeComponentName;
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//
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// Include files with function prototypes
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//
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#include "DriverBinding.h"
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#include "ComponentName.h"
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//
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// Other stuff
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//
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#include <IndustryStandard/Xen/xen.h>
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typedef struct _XENBUS_DEVICE_PATH XENBUS_DEVICE_PATH;
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typedef struct _XENBUS_DEVICE XENBUS_DEVICE;
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// Have the state of the driver.
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#define XENBUS_DEVICE_SIGNATURE SIGNATURE_32 ('X','B','s','t')
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struct _XENBUS_DEVICE {
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UINT32 Signature;
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EFI_DRIVER_BINDING_PROTOCOL *This;
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EFI_HANDLE ControllerHandle;
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XENIO_PROTOCOL *XenIo;
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EFI_EVENT ExitBootEvent;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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LIST_ENTRY ChildList;
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shared_info_t *SharedInfo;
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};
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// There is one of this struct allocated for every child.
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#define XENBUS_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('X', 'B', 'p', 'd')
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typedef struct {
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UINTN Signature;
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LIST_ENTRY Link;
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EFI_HANDLE Handle;
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XENBUS_PROTOCOL XenBusIo;
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XENBUS_DEVICE *Dev;
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XENBUS_DEVICE_PATH *DevicePath;
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} XENBUS_PRIVATE_DATA;
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#define XENBUS_PRIVATE_DATA_FROM_THIS(a) \
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CR (a, XENBUS_PRIVATE_DATA, XenBusIo, XENBUS_PRIVATE_DATA_SIGNATURE)
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#define XENBUS_PRIVATE_DATA_FROM_LINK(a) \
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CR (a, XENBUS_PRIVATE_DATA, Link, XENBUS_PRIVATE_DATA_SIGNATURE)
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/*
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* Helpers
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*/
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/**
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Atomically test and clear a bit.
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@param Bit Bit index to test in *Address
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@param Address The Address to the buffer that contain the bit to test.
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@return Value of the Bit before it was cleared.
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**/
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INT32
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EFIAPI
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TestAndClearBit (
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IN INT32 Bit,
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IN VOID *Address
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);
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CHAR8*
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AsciiStrDup (
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IN CONST CHAR8* Str
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);
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#endif
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