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/** @file
Internal definitions for the VirtIo PCI Device driver
Copyright (C) 2013, ARM Ltd
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _VIRTIO_PCI_DEVICE_DXE_H_
#define _VIRTIO_PCI_DEVICE_DXE_H_
#include <Protocol/ComponentName.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/PciIo.h>
#include <Protocol/VirtioDevice.h>
#include <IndustryStandard/Virtio.h>
#define VIRTIO_PCI_DEVICE_SIGNATURE SIGNATURE_32 ('V', 'P', 'C', 'I')
typedef struct {
UINT32 Signature;
VIRTIO_DEVICE_PROTOCOL VirtioDevice;
EFI_PCI_IO_PROTOCOL *PciIo;
UINT64 OriginalPciAttributes;
UINT32 DeviceSpecificConfigurationOffset;
} VIRTIO_PCI_DEVICE;
#define VIRTIO_PCI_DEVICE_FROM_VIRTIO_DEVICE(Device) \
CR (Device, VIRTIO_PCI_DEVICE, VirtioDevice, VIRTIO_PCI_DEVICE_SIGNATURE)
EFI_STATUS
EFIAPI
VirtioPciIoRead (
IN VIRTIO_PCI_DEVICE *Dev,
IN UINTN FieldOffset,
IN UINTN FieldSize,
IN UINTN BufferSize,
OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
VirtioPciIoWrite (
IN VIRTIO_PCI_DEVICE *Dev,
IN UINTN FieldOffset,
IN UINTN FieldSize,
IN UINT64 Value
);
/********************************************
* PCI Functions for VIRTIO_DEVICE_PROTOCOL
*******************************************/
EFI_STATUS
EFIAPI
VirtioPciDeviceRead (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN FieldOffset,
IN UINTN FieldSize,
IN UINTN BufferSize,
OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
VirtioPciDeviceWrite (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN FieldOffset,
IN UINTN FieldSize,
IN UINT64 Value
);
EFI_STATUS
EFIAPI
VirtioPciGetDeviceFeatures (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT32 *DeviceFeatures
);
EFI_STATUS
EFIAPI
VirtioPciGetQueueAddress (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT32 *QueueAddress
);
EFI_STATUS
EFIAPI
VirtioPciGetQueueSize (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT16 *QueueNumMax
);
EFI_STATUS
EFIAPI
VirtioPciSetQueueAlignment (
VIRTIO_DEVICE_PROTOCOL *This,
UINT32 Alignment
);
EFI_STATUS
EFIAPI
VirtioPciSetPageSize (
VIRTIO_DEVICE_PROTOCOL *This,
UINT32 PageSize
);
EFI_STATUS
EFIAPI
VirtioPciGetDeviceStatus (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT8 *DeviceStatus
);
EFI_STATUS
EFIAPI
VirtioPciSetGuestFeatures (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT32 Features
);
EFI_STATUS
EFIAPI
VirtioPciSetQueueAddress (
VIRTIO_DEVICE_PROTOCOL *This,
UINT32 Address
);
EFI_STATUS
EFIAPI
VirtioPciSetQueueSel (
VIRTIO_DEVICE_PROTOCOL *This,
UINT16 Sel
);
EFI_STATUS
EFIAPI
VirtioPciSetQueueNotify (
VIRTIO_DEVICE_PROTOCOL *This,
UINT16 Index
);
EFI_STATUS
EFIAPI
VirtioPciSetQueueSize (
VIRTIO_DEVICE_PROTOCOL *This,
UINT16 Size
);
EFI_STATUS
EFIAPI
VirtioPciSetDeviceStatus (
VIRTIO_DEVICE_PROTOCOL *This,
UINT8 DeviceStatus
);
#endif // _VIRTIO_PCI_DEVICE_DXE_H_
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