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