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/** @file
SmmIchnDispatch Extended Protocol
Copyright (c) 2008 - 2015, 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
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.
**/
#ifndef _EFI_SMM_ICHN_DISPATCH_EX_H_
#define _EFI_SMM_ICHN_DISPATCH_EX_H_
#include <Protocol/SmmIchnDispatch.h>
//
// Extern the GUID for protocol users.
//
extern EFI_GUID gEfiSmmIchnDispatchExProtocolGuid;
//
// Forward reference for ANSI C compatibility
//
typedef struct _EFI_SMM_ICHN_DISPATCH_EX_PROTOCOL EFI_SMM_ICHN_DISPATCH_EX_PROTOCOL;
//
// Related Definitions
//
///
/// Ichn Dispatch Extended Types
///
typedef enum {
IchnExPciExpress = NUM_ICHN_TYPES + 1,
IchnExMonitor,
IchnExSpi,
IchnExQRT,
IchnExGpioUnlock,
IchnExTmrOverflow,
IchnExPcie0Hotplug,
IchnExPcie1Hotplug,
IchnExPcie2Hotplug,
IchnExPcie3Hotplug,
IchnExPcie0LinkActive,
IchnExPcie1LinkActive,
IchnExPcie2LinkActive,
IchnExPcie3LinkActive,
//
// INSERT NEW ITEMS JUST BEFORE THIS LINE
//
IchnExTypeMAX ///< the maximum number of items in this enumeration
} EFI_SMM_ICHN_EX_SMI_TYPE;
typedef struct {
EFI_SMM_ICHN_EX_SMI_TYPE Type;
} EFI_SMM_ICHN_DISPATCH_EX_CONTEXT;
//
// Member functions
//
/**
Dispatch function for a ICH n Extended specific SMI handler.
@param[in] DispatchHandle Handle of this dispatch function.
@param[in] DispatchContext 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_ICHN_DISPATCH_EX) (
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_ICHN_DISPATCH_EX_CONTEXT * DispatchContext
);
/**
Register a child SMI source dispatch function with a parent SMM driver
@param[in] This Protocol instance pointer.
@param[in] DispatchFunction Pointer to dispatch function to be invoked for
this SMI source
@param[in] DispatchContext Pointer to the dispatch function's context.
The caller fills this context in before calling
the register function to indicate to the register
function the ICHN SMI source for which the dispatch
function should be invoked.
@param[out] DispatchHandle Handle of dispatch function, for when interfacing
with the parent SMM driver.
@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 ICHN input value
is not within valid range.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_ICHN_EX_REGISTER) (
IN EFI_SMM_ICHN_DISPATCH_EX_PROTOCOL * This,
IN EFI_SMM_ICHN_DISPATCH_EX DispatchFunction,
IN EFI_SMM_ICHN_DISPATCH_EX_CONTEXT * DispatchContext,
OUT EFI_HANDLE * DispatchHandle
);
/**
Unregister a child SMI source dispatch function with a parent SMM driver
@param[in] This Protocol instance pointer.
@param[in] DispatchHandle Handle of dispatch function to deregister.
@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 Handle is invalid.
@retval Others TBD
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_ICHN_EX_UNREGISTER) (
IN EFI_SMM_ICHN_DISPATCH_EX_PROTOCOL * This,
IN EFI_HANDLE DispatchHandle
);
///
/// Interface structure for the SMM Ich n specific SMI Dispatch Protocol
///
/// This protocol provides the ability to dispatch function for a ICHn specific SMI.
/// This protocol acts as an extension to the EFI_SMM_ICHN_DISPATCH_PROTOCOL capabilities
/// by defining several new SMI types: IchnExPciExpress, IchnExMonitor, IchnExSpi,
/// IchnExQRT, IchnGpioUnlockSmi, IchnExTmrOverflow, IchnExPcieXHotplug, IchnExPcieXLinkActive.
///
struct _EFI_SMM_ICHN_DISPATCH_EX_PROTOCOL {
EFI_SMM_ICHN_EX_REGISTER Register; ///< Register a child SMI source dispatch function with a parent SMM driver.
EFI_SMM_ICHN_EX_UNREGISTER UnRegister; ///< Un-register a child SMI source dispatch function with a parent SMM driver.
};
#endif
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