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/** @file
Internal definitions for the VirtIo MMIO Device driver
Copyright (C) 2013, ARM Ltd
Copyright (C) 2017, AMD Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _VIRTIO_MMIO_DEVICE_INTERNAL_H_
#define _VIRTIO_MMIO_DEVICE_INTERNAL_H_
#include <Protocol/VirtioDevice.h>
#include <IndustryStandard/Virtio.h>
#include <Library/DebugLib.h>
#include <Library/IoLib.h>
#include <Library/UefiLib.h>
#include <Library/VirtioMmioDeviceLib.h>
#include <Library/MemoryAllocationLib.h>
#define VIRTIO_MMIO_DEVICE_SIGNATURE SIGNATURE_32 ('V', 'M', 'I', 'O')
#define VIRTIO_MMIO_DEVICE_VERSION_0_95 1
#define VIRTIO_MMIO_DEVICE_VERSION_1_00 2
typedef struct {
UINT32 Signature;
UINT32 Version;
UINT16 QueueNum;
VIRTIO_DEVICE_PROTOCOL VirtioDevice;
PHYSICAL_ADDRESS BaseAddress;
} VIRTIO_MMIO_DEVICE;
#define VIRTIO_MMIO_DEVICE_FROM_VIRTIO_DEVICE(Device) \
CR (Device, VIRTIO_MMIO_DEVICE, VirtioDevice, VIRTIO_MMIO_DEVICE_SIGNATURE)
#define VIRTIO_CFG_WRITE(Device, Offset, Val) \
(MmioWrite32 (Device->BaseAddress + (Offset), Val))
#define VIRTIO_CFG_READ(Device, Offset) \
(MmioRead32 (Device->BaseAddress + (Offset)))
EFI_STATUS
EFIAPI
VirtioMmioDeviceRead (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN FieldOFfset,
IN UINTN FieldSize,
IN UINTN BufferSize,
OUT VOID *Buffer
);
EFI_STATUS
EFIAPI
VirtioMmioDeviceWrite (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN FieldOffset,
IN UINTN FieldSize,
IN UINT64 Value
);
EFI_STATUS
EFIAPI
VirtioMmioGetDeviceFeatures (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT64 *DeviceFeatures
);
EFI_STATUS
EFIAPI
VirtioMmioGetQueueSize (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT16 *QueueNumMax
);
EFI_STATUS
EFIAPI
VirtioMmioGetDeviceStatus (
IN VIRTIO_DEVICE_PROTOCOL *This,
OUT UINT8 *DeviceStatus
);
EFI_STATUS
EFIAPI
VirtioMmioSetQueueSize (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT16 QueueSize
);
EFI_STATUS
EFIAPI
VirtioMmioSetDeviceStatus (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT8 DeviceStatus
);
EFI_STATUS
EFIAPI
VirtioMmioSetQueueNotify (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT16 QueueNotify
);
EFI_STATUS
EFIAPI
VirtioMmioSetQueueSel (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT16 Sel
);
EFI_STATUS
EFIAPI
VirtioMmioSetQueueAddress (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN VRING *Ring,
IN UINT64 RingBaseShift
);
EFI_STATUS
EFIAPI
VirtioMmioSetQueueAlignment (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT32 Alignment
);
EFI_STATUS
EFIAPI
VirtioMmioSetPageSize (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT32 PageSize
);
EFI_STATUS
EFIAPI
VirtioMmioSetGuestFeatures (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINT64 Features
);
EFI_STATUS
EFIAPI
VirtioMmioAllocateSharedPages (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN NumPages,
OUT VOID **HostAddress
);
VOID
EFIAPI
VirtioMmioFreeSharedPages (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN UINTN NumPages,
IN VOID *HostAddress
);
EFI_STATUS
EFIAPI
VirtioMmioMapSharedBuffer (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN VIRTIO_MAP_OPERATION Operation,
IN VOID *HostAddress,
IN OUT UINTN *NumberOfBytes,
OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
OUT VOID **Mapping
);
EFI_STATUS
EFIAPI
VirtioMmioUnmapSharedBuffer (
IN VIRTIO_DEVICE_PROTOCOL *This,
IN VOID *Mapping
);
#endif // _VIRTIO_MMIO_DEVICE_INTERNAL_H_
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