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/** @file
Super I/O Interface function declarations.
Copyright (c) 2010 - 2019 Intel Corporation. All rights reserved. <BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _SIO_ACPI_H_
#define _SIO_ACPI_H_
//
// Prototypes for the SIO protocol interface
//
/**
Provides an interface to get a list of the current resources consumed by the device in the ACPI
Resource Descriptor format.
GetResources() returns a list of resources currently consumed by the device. The
ResourceList is a pointer to the buffer containing resource descriptors for the device. The
descriptors are in the format of Small or Large ACPI resource descriptor as defined by ACPI
specification (2.0 & 3.0). The buffer of resource descriptors is terminated with the 'End tag'
resource descriptor.
@param[in] This Indicates a pointer to the calling context.
@param[out] ResourceList A pointer to an ACPI resource descriptor list that defines the current resources
used by the device. Type ACPI_RESOURCE_HEADER_PTR is defined in the "Related
Definitions" below.
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER ResourceList is NULL
**/
EFI_STATUS
EFIAPI
SioGetResources (
IN CONST EFI_SIO_PROTOCOL *This,
OUT ACPI_RESOURCE_HEADER_PTR *ResourceList
);
/**
Sets the resources for the device.
@param[in] This Indicates a pointer to the calling context.
@param[in] ResourceList Pointer to the ACPI resource descriptor list. Type ACPI_RESOURCE_HEADER_PTR
is defined in the "Related Definitions" section of
EFI_SIO_PROTOCOL.GetResources().
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER ResourceList is invalid
@retval EFI_ACCESS_DENIED Some of the resources in ResourceList are in use
**/
EFI_STATUS
EFIAPI
SioSetResources (
IN CONST EFI_SIO_PROTOCOL *This,
IN ACPI_RESOURCE_HEADER_PTR ResourceList
);
/**
Provides a collection of resource descriptor lists. Each resource descriptor list in the collection
defines a combination of resources that can potentially be used by the device.
@param[in] This Indicates a pointer to the calling context.
@param[out] ResourceCollection Collection of the resource descriptor lists.
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER ResourceCollection is NULL
**/
EFI_STATUS
EFIAPI
SioPossibleResources (
IN CONST EFI_SIO_PROTOCOL *This,
OUT ACPI_RESOURCE_HEADER_PTR *ResourceCollection
);
/**
Provides a low level access to the registers for the Super I/O.
@param[in] This Indicates a pointer to the calling context.
@param[in] Write Specifies the type of the register operation. If this parameter is TRUE,
Value is interpreted as an input parameter and the operation is a register write.
If this parameter is FALSE, Value is interpreted as an output parameter and the
operation is a register read.
@param[in] ExitCfgMode Exit Configuration Mode Indicator. If this parameter is set to TRUE, the
Super I/O driver will turn off configuration mode of the Super I/O prior to returning
from this function. If this parameter is set to FALSE, the Super I/O driver will
leave Super I/O in the configuration mode.
The Super I/O driver must track the current state of the Super I/O and enable the
configuration mode of Super I/O if necessary prior to register access.
@param[in] Register Register number.
@param[in, out] Value If Write is TRUE, Value is a pointer to the buffer containing the byte of data to be
written to the Super I/O register. If Write is FALSE, Value is a pointer to the
destination buffer for the byte of data to be read from the Super I/O register.
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER The Value is NULL
@retval EFI_INVALID_PARAMETER Invalid Register number
**/
EFI_STATUS
EFIAPI
SioRegisterAccess (
IN CONST EFI_SIO_PROTOCOL *This,
IN BOOLEAN Write,
IN BOOLEAN ExitCfgMode,
IN UINT8 Register,
IN OUT UINT8 *Value
);
/**
Provides an interface for a table based programming of the Super I/O registers.
The Modify() function provides an interface for table based programming of the Super I/O
registers. This function can be used to perform programming of multiple Super I/O registers with a
single function call. For each table entry, the Register is read, its content is bitwise ANDed with
AndMask, and then ORed with OrMask before being written back to the Register. The Super
I/O driver must track the current state of the Super I/O and enable the configuration mode of Super I/
O if necessary prior to table processing. Once the table is processed, the Super I/O device has to be
returned to the original state.
@param[in] This Indicates a pointer to the calling context.
@param[in] Command A pointer to an array of NumberOfCommands EFI_SIO_REGISTER_MODIFY
structures. Each structure specifies a single Super I/O register modify operation.
Type EFI_SIO_REGISTER_MODIFY is defined in the "Related Definitions" below.
@param[in] NumberOfCommands Number of elements in the Command array.
@retval EFI_SUCCESS The operation completed successfully
@retval EFI_INVALID_PARAMETER Command is NULL
**/
EFI_STATUS
EFIAPI
SioModify (
IN CONST EFI_SIO_PROTOCOL *This,
IN CONST EFI_SIO_REGISTER_MODIFY *Command,
IN UINTN NumberOfCommands
);
#endif
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