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