137 lines
5.0 KiB
C
137 lines
5.0 KiB
C
/** @file
|
|
This file declares the Smm Gpi Smi Child Protocol.
|
|
|
|
The EFI_SMM_GPI_DISPATCH_PROTOCOL is defined in Framework of EFI SMM Core Interface Spec
|
|
Version 0.9. It provides the ability to install child handlers for the given event types.
|
|
Several inputs can be enabled. This purpose of this interface is to generate an
|
|
SMI in response to any of these inputs having a true value provided.
|
|
|
|
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials are licensed and made available under
|
|
the terms and conditions of the BSD License that 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.
|
|
|
|
**/
|
|
|
|
#ifndef _SMM_GPI_DISPATCH_H_
|
|
#define _SMM_GPI_DISPATCH_H_
|
|
|
|
|
|
//
|
|
// Global ID for the GPI SMI Protocol
|
|
//
|
|
#define EFI_SMM_GPI_DISPATCH_PROTOCOL_GUID \
|
|
{ \
|
|
0xe0744b81, 0x9513, 0x49cd, {0x8c, 0xea, 0xe9, 0x24, 0x5e, 0x70, 0x39, 0xda } \
|
|
}
|
|
|
|
typedef struct _EFI_SMM_GPI_DISPATCH_PROTOCOL EFI_SMM_GPI_DISPATCH_PROTOCOL;
|
|
|
|
//
|
|
// Related Definitions
|
|
//
|
|
|
|
//
|
|
// GpiMask is a bit mask of 32 possible general purpose inputs that can generate
|
|
// an SMI. Bit 0 corresponds to logical GPI[0], 1 corresponds to logical GPI[1], and so on.
|
|
//
|
|
// The logical GPI index to physical pin on device is described by the GPI device name
|
|
// found on the same handle as the GpiSmi child dispatch protocol. The GPI device name
|
|
// is defined as protocol with a GUID name and NULL protocol pointer.
|
|
//
|
|
typedef struct {
|
|
UINTN GpiNum;
|
|
} EFI_SMM_GPI_DISPATCH_CONTEXT;
|
|
|
|
//
|
|
// Member functions
|
|
//
|
|
|
|
/**
|
|
Dispatch function for a GPI SMI handler.
|
|
|
|
@param DispatchHandle The handle of this dispatch function.
|
|
@param DispatchContext The pointer to the dispatch function's context.
|
|
The DispatchContext fields are filled in by the
|
|
dispatching driver prior to invoking this dispatch
|
|
function.
|
|
**/
|
|
typedef
|
|
VOID
|
|
(EFIAPI *EFI_SMM_GPI_DISPATCH)(
|
|
IN EFI_HANDLE DispatchHandle,
|
|
IN EFI_SMM_GPI_DISPATCH_CONTEXT *DispatchContext
|
|
);
|
|
|
|
/**
|
|
Register a child SMI source dispatch function with a parent SMM driver
|
|
|
|
@param This The pointer to the EFI_SMM_GPI_DISPATCH_PROTOCOL instance.
|
|
@param DispatchFunction Function to install.
|
|
@param DispatchContext The pointer to the dispatch function's context.
|
|
Indicates to the register
|
|
function the GPI(s) for which the dispatch function
|
|
should be invoked.
|
|
@param DispatchHandle The handle generated by the dispatcher to track the
|
|
function instance.
|
|
|
|
@retval EFI_SUCCESS The dispatch function has been successfully
|
|
registered, and the SMI source has been enabled.
|
|
@retval EFI_DEVICE_ERROR The driver was unable to enable the SMI source.
|
|
@retval EFI_OUT_OF_RESOURCES Not enough memory (system or SMM) to manage this
|
|
child.
|
|
@retval EFI_INVALID_PARAMETER DispatchContext is invalid. The GPI input value
|
|
is not within valid range.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_GPI_REGISTER)(
|
|
IN EFI_SMM_GPI_DISPATCH_PROTOCOL *This,
|
|
IN EFI_SMM_GPI_DISPATCH DispatchFunction,
|
|
IN EFI_SMM_GPI_DISPATCH_CONTEXT *DispatchContext,
|
|
OUT EFI_HANDLE *DispatchHandle
|
|
);
|
|
|
|
/**
|
|
Unregisters a General Purpose Input (GPI) service.
|
|
|
|
@param This The pointer to the EFI_SMM_GPI_DISPATCH_PROTOCOL instance.
|
|
@param DispatchHandle The handle of the service to remove.
|
|
|
|
@retval EFI_SUCCESS The dispatch function has been successfully
|
|
unregistered, and the SMI source has been disabled,
|
|
if there are no other registered child dispatch
|
|
functions for this SMI source.
|
|
@retval EFI_INVALID_PARAMETER DispatchHandle is invalid.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_GPI_UNREGISTER)(
|
|
IN EFI_SMM_GPI_DISPATCH_PROTOCOL *This,
|
|
IN EFI_HANDLE DispatchHandle
|
|
);
|
|
|
|
//
|
|
// Interface structure for the SMM GPI SMI Dispatch Protocol
|
|
//
|
|
struct _EFI_SMM_GPI_DISPATCH_PROTOCOL {
|
|
EFI_SMM_GPI_REGISTER Register;
|
|
EFI_SMM_GPI_UNREGISTER UnRegister;
|
|
|
|
///
|
|
/// Denotes the maximum value of inputs that can have handlers attached.
|
|
///
|
|
UINTN NumSupportedGpis;
|
|
};
|
|
|
|
extern EFI_GUID gEfiSmmGpiDispatchProtocolGuid;
|
|
|
|
#endif
|
|
|