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87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/** @file
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The Super I/O Control Protocol is installed by the Super I/O driver. It provides
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the low-level services for SIO devices that enable them to be used in the UEFI
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driver model.
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Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This protocol is from PI Version 1.2.1.
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**/
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#ifndef __EFI_SUPER_IO_CONTROL_PROTOCOL_H__
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#define __EFI_SUPER_IO_CONTROL_PROTOCOL_H__
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#define EFI_SIO_CONTROL_PROTOCOL_GUID \
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{ \
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0xb91978df, 0x9fc1, 0x427d, { 0xbb, 0x5, 0x4c, 0x82, 0x84, 0x55, 0xca, 0x27 } \
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}
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typedef struct _EFI_SIO_CONTROL_PROTOCOL EFI_SIO_CONTROL_PROTOCOL;
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typedef struct _EFI_SIO_CONTROL_PROTOCOL *PEFI_SIO_CONTROL_PROTOCOL;
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/**
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Enable an ISA-style device.
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This function enables a logical ISA device and, if necessary, configures it
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to default settings, including memory, I/O, DMA and IRQ resources.
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@param This A pointer to this instance of the EFI_SIO_CONTROL_PROTOCOL.
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@retval EFI_SUCCESS The device is enabled successfully.
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@retval EFI_OUT_OF_RESOURCES The device could not be enabled because there
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were insufficient resources either for the device
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itself or for the records needed to track the device.
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@retval EFI_ALREADY_STARTED The device is already enabled.
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@retval EFI_UNSUPPORTED The device cannot be enabled.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SIO_CONTROL_ENABLE)(
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IN CONST EFI_SIO_CONTROL_PROTOCOL *This
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);
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/**
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Disable a logical ISA device.
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This function disables a logical ISA device so that it no longer consumes
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system resources, such as memory, I/O, DMA and IRQ resources. Enough information
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must be available so that subsequent Enable() calls would properly reconfigure
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the device.
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@param This A pointer to this instance of the EFI_SIO_CONTROL_PROTOCOL.
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@retval EFI_SUCCESS The device is disabled successfully.
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@retval EFI_OUT_OF_RESOURCES The device could not be disabled because there
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were insufficient resources either for the device
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itself or for the records needed to track the device.
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@retval EFI_ALREADY_STARTED The device is already disabled.
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@retval EFI_UNSUPPORTED The device cannot be disabled.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_SIO_CONTROL_DISABLE)(
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IN CONST EFI_SIO_CONTROL_PROTOCOL *This
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);
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struct _EFI_SIO_CONTROL_PROTOCOL {
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///
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/// The version of this protocol.
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///
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UINT32 Version;
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///
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/// Enable a device.
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///
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EFI_SIO_CONTROL_ENABLE EnableDevice;
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///
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/// Disable a device.
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///
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EFI_SIO_CONTROL_DISABLE DisableDevice;
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};
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extern EFI_GUID gEfiSioControlProtocolGuid;
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#endif // __EFI_SUPER_IO_CONTROL_PROTOCOL_H__
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