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audk/EdkCompatibilityPkg/Foundation/Protocol/IsaIo/IsaIo.h

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/*++
Copyright (c) 2004 - 2006, Intel Corporation
All rights reserved. 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.
Module Name:
IsaIo.h
Abstract:
EFI_ISA_IO_PROTOCOL or EFI_LIGHT_ISA_IO_PROTOCOL
based on macro SIZE_REDUCTION_ISA_COMBINED.
Revision History
--*/
#ifndef _EFI_ISA_IO_H
#define _EFI_ISA_IO_H
//
// Common definitions for Light ISA I/O Protocol and ISA I/O Protocol
//
#include EFI_PROTOCOL_DEFINITION(IsaAcpi)
typedef enum {
EfiIsaIoWidthUint8,
EfiIsaIoWidthUint16,
EfiIsaIoWidthUint32,
EfiIsaIoWidthReserved,
EfiIsaIoWidthFifoUint8,
EfiIsaIoWidthFifoUint16,
EfiIsaIoWidthFifoUint32,
EfiIsaIoWidthFifoReserved,
EfiIsaIoWidthFillUint8,
EfiIsaIoWidthFillUint16,
EfiIsaIoWidthFillUint32,
EfiIsaIoWidthFillReserved,
EfiIsaIoWidthMaximum
} EFI_ISA_IO_PROTOCOL_WIDTH;
//
// Attributes for common buffer allocations
//
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x080 // Map a memory range so write are combined
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_CACHED 0x800 // Map a memory range so all r/w accesses are cached
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 // Disable a memory range
//
// Channel attribute for DMA operations
//
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_COMPATIBLE 0x001
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_A 0x002
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_B 0x004
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_C 0x008
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_8 0x010
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_16 0x020
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SINGLE_MODE 0x040
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_DEMAND_MODE 0x080
#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_AUTO_INITIALIZE 0x100
typedef enum {
EfiIsaIoOperationBusMasterRead,
EfiIsaIoOperationBusMasterWrite,
EfiIsaIoOperationBusMasterCommonBuffer,
EfiIsaIoOperationSlaveRead,
EfiIsaIoOperationSlaveWrite,
EfiIsaIoOperationMaximum
} EFI_ISA_IO_PROTOCOL_OPERATION;
#ifndef SIZE_REDUCTION_ISA_COMBINED
//
// Specific for ISA I/O Protocol
//
#define EFI_INTERFACE_DEFINITION_FOR_ISA_IO EFI_ISA_IO_PROTOCOL
#define EFI_ISA_IO_PROTOCOL_VERSION &gEfiIsaIoProtocolGuid
#define EFI_ISA_IO_OPERATION_TOKEN EfiIsaIoOperationBusMasterWrite
//
// Global ID for the ISA I/O Protocol
//
#define EFI_ISA_IO_PROTOCOL_GUID \
{ 0x7ee2bd44, 0x3da0, 0x11d4, {0x9a, 0x38, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d} }
EFI_FORWARD_DECLARATION (EFI_ISA_IO_PROTOCOL);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_IO_MEM) (
IN EFI_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
IN UINT32 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
);
typedef struct {
EFI_ISA_IO_PROTOCOL_IO_MEM Read;
EFI_ISA_IO_PROTOCOL_IO_MEM Write;
} EFI_ISA_IO_PROTOCOL_ACCESS;
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_COPY_MEM) (
IN EFI_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
IN UINT32 DestOffset,
IN UINT32 SrcOffset,
IN UINTN Count
);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_MAP) (
IN EFI_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_OPERATION Operation,
IN UINT8 ChannelNumber OPTIONAL,
IN UINT32 ChannelAttributes,
IN VOID *HostAddress,
IN OUT UINTN *NumberOfBytes,
OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
OUT VOID **Mapping
);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_UNMAP) (
IN EFI_ISA_IO_PROTOCOL *This,
IN VOID *Mapping
);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER) (
IN EFI_ISA_IO_PROTOCOL *This,
IN EFI_ALLOCATE_TYPE Type,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
OUT VOID **HostAddress,
IN UINT64 Attributes
);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_FREE_BUFFER) (
IN EFI_ISA_IO_PROTOCOL *This,
IN UINTN Pages,
IN VOID *HostAddress
);
typedef
EFI_STATUS
(EFIAPI *EFI_ISA_IO_PROTOCOL_FLUSH) (
IN EFI_ISA_IO_PROTOCOL *This
);
//
// Interface structure for the ISA I/O Protocol
//
struct _EFI_ISA_IO_PROTOCOL {
EFI_ISA_IO_PROTOCOL_ACCESS Mem;
EFI_ISA_IO_PROTOCOL_ACCESS Io;
EFI_ISA_IO_PROTOCOL_COPY_MEM CopyMem;
EFI_ISA_IO_PROTOCOL_MAP Map;
EFI_ISA_IO_PROTOCOL_UNMAP Unmap;
EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER AllocateBuffer;
EFI_ISA_IO_PROTOCOL_FREE_BUFFER FreeBuffer;
EFI_ISA_IO_PROTOCOL_FLUSH Flush;
EFI_ISA_ACPI_RESOURCE_LIST *ResourceList;
UINT32 RomSize;
VOID *RomImage;
};
extern EFI_GUID gEfiIsaIoProtocolGuid;
#else
//
// Specific for Light ISA I/O Protocol
//
#define EFI_INTERFACE_DEFINITION_FOR_ISA_IO EFI_LIGHT_ISA_IO_PROTOCOL
#define EFI_ISA_IO_PROTOCOL_VERSION &gEfiLightIsaIoProtocolGuid
#define EFI_ISA_IO_OPERATION_TOKEN EfiIsaIoOperationSlaveWrite
#define ADD_SERIAL_NAME(x, y)
//
// Global ID for the Light ISA I/O Protocol
//
#define EFI_LIGHT_ISA_IO_PROTOCOL_GUID \
{ 0x7cc7ed80, 0x9a68, 0x4781, {0x80, 0xe4, 0xda, 0x16, 0x99, 0x10, 0x5a, 0xfe} }
EFI_FORWARD_DECLARATION (EFI_LIGHT_ISA_IO_PROTOCOL);
typedef
EFI_STATUS
(EFIAPI *EFI_LIGHT_ISA_IO_PROTOCOL_IO_MEM) (
IN EFI_LIGHT_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
IN UINT32 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
/*++
Routine Description:
Performs an ISA I/O Read/Write Cycle
EFI_LIGHT_ISA_IO_PROTOCOL doesn't verfiy access for I/O operation.
Arguments:
This - A pointer to the EFI_ISA_IO_PROTOCOL or EFI_LIGHT_ISA_IO_PROTOCOL instance.
Width - Signifies the width of the I/O operation.
Offset - The offset in ISA I/O space to start the I/O operation.
Count - The number of I/O operations to perform.
Buffer - The source/destination buffer
Returns:
EFI_SUCCESS - The data was read from or written to the device sucessfully.
EFI_UNSUPPORTED - The Offset is not valid for this device.
EFI_INVALID_PARAMETER - Width or Count, or both, were invalid.
EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of resources.
--*/
;
typedef struct {
EFI_LIGHT_ISA_IO_PROTOCOL_IO_MEM Read;
EFI_LIGHT_ISA_IO_PROTOCOL_IO_MEM Write;
} EFI_LIGHT_ISA_IO_PROTOCOL_ACCESS;
typedef
EFI_STATUS
(EFIAPI *EFI_LIGHT_ISA_IO_PROTOCOL_MAP) (
IN EFI_LIGHT_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_OPERATION Operation,
IN UINT8 ChannelNumber OPTIONAL,
IN UINT32 ChannelAttributes,
IN VOID *HostAddress,
IN OUT UINTN *NumberOfBytes,
OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
OUT VOID **Mapping
)
/*++
Routine Description:
Maps a memory region for DMA, EFI_LIGHT_ISA_IO_PROTOCOL only supports
Slave read/write operation to save code size.
Arguments:
This - A pointer to the EFI_LIGHT_ISA_IO_PROTOCOL instance.
Operation - Indicates the type of DMA (slave or bus master), and if
the DMA operation is going to read or write to system memory.
ChannelNumber - The slave channel number to use for this DMA operation.
If Operation and ChannelAttributes shows that this device
performs bus mastering DMA, then this field is ignored.
The legal range for this field is 0..7.
ChannelAttributes - The attributes of the DMA channel to use for this DMA operation
HostAddress - The system memory address to map to the device.
NumberOfBytes - On input the number of bytes to map. On output the number
of bytes that were mapped.
DeviceAddress - The resulting map address for the bus master device to use
to access the hosts HostAddress.
Mapping - A resulting value to pass to EFI_ISA_IO.Unmap().
Returns:
EFI_SUCCESS - The range was mapped for the returned NumberOfBytes.
EFI_INVALID_PARAMETER - The Operation or HostAddress is undefined.
EFI_UNSUPPORTED - The HostAddress can not be mapped as a common buffer.
EFI_DEVICE_ERROR - The system hardware could not map the requested address.
EFI_OUT_OF_RESOURCES - The memory pages could not be allocated.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_LIGHT_ISA_IO_PROTOCOL_UNMAP) (
IN EFI_LIGHT_ISA_IO_PROTOCOL *This,
IN VOID *Mapping
)
/*++
Routine Description:
Unmaps a memory region for DMA
Arguments:
This - A pointer to the EFI_ISA_IO_PROTOCOL or EFI_LIGHT_ISA_IO_PROTOCOL instance.
Mapping - The mapping value returned from EFI_ISA_IO.Map().
Returns:
EFI_SUCCESS - The range was unmapped.
EFI_DEVICE_ERROR - The data was not committed to the target system memory.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_LIGHT_ISA_IO_PROTOCOL_FLUSH) (
IN EFI_LIGHT_ISA_IO_PROTOCOL *This
)
/*++
Routine Description:
Flushes a DMA buffer
Arguments:
This - A pointer to the EFI_ISA_IO_PROTOCOL or EFI_LIGHT_ISA_IO_PROTOCOL instance.
Returns:
EFI_SUCCESS - The buffers were flushed.
EFI_DEVICE_ERROR - The buffers were not flushed due to a hardware error.
--*/
;
//
// Interface structure for the Light ISA I/O Protocol
//
struct _EFI_LIGHT_ISA_IO_PROTOCOL {
EFI_LIGHT_ISA_IO_PROTOCOL_ACCESS Io;
EFI_LIGHT_ISA_IO_PROTOCOL_MAP Map;
EFI_LIGHT_ISA_IO_PROTOCOL_UNMAP Unmap;
EFI_LIGHT_ISA_IO_PROTOCOL_FLUSH Flush;
EFI_ISA_ACPI_RESOURCE_LIST *ResourceList;
UINT32 RomSize;
VOID *RomImage;
};
extern EFI_GUID gEfiLightIsaIoProtocolGuid;
#endif
#endif
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