mirror of https://github.com/acidanthera/audk.git
169 lines
5.4 KiB
C
169 lines
5.4 KiB
C
/**@file
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EFI ISA I/O Protocol
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this 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,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _EFI_ISA_IO_H
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#define _EFI_ISA_IO_H
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#include <Protocol/IsaAcpi.h>
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//
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// Global ID for the ISA I/O Protocol
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//
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#define EFI_ISA_IO_PROTOCOL_GUID \
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{ 0x7ee2bd44, 0x3da0, 0x11d4, { 0x9a, 0x38, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
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typedef struct _EFI_ISA_IO_PROTOCOL EFI_ISA_IO_PROTOCOL;
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//
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// Prototypes for the ISA I/O Protocol
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//
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typedef enum {
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EfiIsaIoWidthUint8,
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EfiIsaIoWidthUint16,
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EfiIsaIoWidthUint32,
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EfiIsaIoWidthReserved,
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EfiIsaIoWidthFifoUint8,
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EfiIsaIoWidthFifoUint16,
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EfiIsaIoWidthFifoUint32,
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EfiIsaIoWidthFifoReserved,
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EfiIsaIoWidthFillUint8,
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EfiIsaIoWidthFillUint16,
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EfiIsaIoWidthFillUint32,
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EfiIsaIoWidthFillReserved,
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EfiIsaIoWidthMaximum
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} EFI_ISA_IO_PROTOCOL_WIDTH;
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//
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// Attributes for common buffer allocations
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//
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#define EFI_ISA_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x080 // Map a memory range so write are combined
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#define EFI_ISA_IO_ATTRIBUTE_MEMORY_CACHED 0x800 // Map a memory range so all r/w accesses are cached
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#define EFI_ISA_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 // Disable a memory range
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//
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// Channel attribute for DMA operations
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//
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_COMPATIBLE 0x001
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_A 0x002
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_B 0x004
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_C 0x008
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_8 0x010
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_16 0x020
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SINGLE_MODE 0x040
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_DEMAND_MODE 0x080
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#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_AUTO_INITIALIZE 0x100
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typedef enum {
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EfiIsaIoOperationBusMasterRead,
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EfiIsaIoOperationBusMasterWrite,
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EfiIsaIoOperationBusMasterCommonBuffer,
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EfiIsaIoOperationSlaveRead,
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EfiIsaIoOperationSlaveWrite,
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EfiIsaIoOperationMaximum
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} EFI_ISA_IO_PROTOCOL_OPERATION;
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_IO_MEM) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
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IN UINT32 Offset,
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IN UINTN Count,
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IN OUT VOID *Buffer
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);
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typedef struct {
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EFI_ISA_IO_PROTOCOL_IO_MEM Read;
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EFI_ISA_IO_PROTOCOL_IO_MEM Write;
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} EFI_ISA_IO_PROTOCOL_ACCESS;
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_COPY_MEM) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
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IN UINT32 DestOffset,
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IN UINT32 SrcOffset,
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IN UINTN Count
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_MAP) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN EFI_ISA_IO_PROTOCOL_OPERATION Operation,
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IN UINT8 ChannelNumber OPTIONAL,
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IN UINT32 ChannelAttributes,
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IN VOID *HostAddress,
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IN OUT UINTN *NumberOfBytes,
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OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
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OUT VOID **Mapping
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_UNMAP) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN VOID *Mapping
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN EFI_ALLOCATE_TYPE Type,
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT VOID **HostAddress,
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IN UINT64 Attributes
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_FREE_BUFFER) (
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IN EFI_ISA_IO_PROTOCOL *This,
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IN UINTN Pages,
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IN VOID *HostAddress
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);
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_IO_PROTOCOL_FLUSH) (
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IN EFI_ISA_IO_PROTOCOL *This
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);
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//
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// Interface structure for the ISA I/O Protocol
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//
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struct _EFI_ISA_IO_PROTOCOL {
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EFI_ISA_IO_PROTOCOL_ACCESS Mem;
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EFI_ISA_IO_PROTOCOL_ACCESS Io;
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EFI_ISA_IO_PROTOCOL_COPY_MEM CopyMem;
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EFI_ISA_IO_PROTOCOL_MAP Map;
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EFI_ISA_IO_PROTOCOL_UNMAP Unmap;
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EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER AllocateBuffer;
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EFI_ISA_IO_PROTOCOL_FREE_BUFFER FreeBuffer;
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EFI_ISA_IO_PROTOCOL_FLUSH Flush;
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EFI_ISA_ACPI_RESOURCE_LIST *ResourceList;
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UINT32 RomSize;
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VOID *RomImage;
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};
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extern EFI_GUID gEfiIsaIoProtocolGuid;
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#endif
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