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[mirror_edk2.git] / IntelFrameworkPkg / Include / Protocol / SmmStandbyButtonDispatch.h

/** @file\r
  Provides the parent dispatch service for the standby button SMI source generator.\r
\r
  The SMM Standby Button Dispatch Protocol is defined in \r
  the Intel Platform Innovation Framework for EFI SMM Core Interface Specification\r
  (SMM CIS) Version 0.9.\r
\r
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials are licensed and made available under \r
the terms and conditions of the BSD License that accompanies this distribution.  \r
The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php.                                          \r
    \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
  @par Revision Reference:\r
  This Protocol is defined in Framework of EFI SMM Core Interface Spec\r
  Version 0.9.\r
\r
**/\r
\r
#ifndef _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_\r
#define _EFI_SMM_STANDBY_BUTTON_DISPATCH_H_\r
\r
//\r
// Share some common definitions with PI SMM\r
//\r
#include <Protocol/SmmStandbyButtonDispatch2.h>\r
\r
//\r
// Global ID for the Standby Button SMI Protocol\r
//\r
#define EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL_GUID \\r
  { \\r
    0x78965b98, 0xb0bf, 0x449e, {0x8b, 0x22, 0xd2, 0x91, 0x4e, 0x49, 0x8a, 0x98 } \\r
  }\r
\r
typedef struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL  EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL;\r
\r
//\r
// Related Definitions\r
//\r
\r
typedef struct {\r
  ///  Describes whether the child handler should be invoked upon the entry to the button\r
  ///  activation or upon exit (i.e., upon receipt of the button press event or upon release of\r
  ///  the event).\r
  EFI_STANDBY_BUTTON_PHASE  Phase;\r
} EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT;\r
\r
//\r
// Member functions\r
//\r
\r
/**\r
  Dispatch function for a Standby Button SMI handler.\r
\r
  @param  DispatchHandle        The handle of this dispatch function.\r
  @param  DispatchContext       The pointer to the dispatch function's context.\r
                                The DispatchContext fields are filled in\r
                                by the dispatching driver prior to\r
                                invoking this dispatch function.\r
\r
**/\r
typedef\r
VOID\r
(EFIAPI *EFI_SMM_STANDBY_BUTTON_DISPATCH)(\r
  IN  EFI_HANDLE                                DispatchHandle,\r
  IN  EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT   *DispatchContext\r
  );\r
\r
/**\r
  Provides the parent dispatch service for a given SMI source generator\r
\r
  @param  This                  The pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.\r
  @param  DispatchFunction      The function to install.\r
  @param  DispatchContext       The pointer to the dispatch function's context.\r
                                Indicates to the register function the Standby \r
                                Button SMI phase for which to invoke the dispatch\r
                                function.\r
  @param  DispatchHandle        The handle generated by the dispatcher to track the \r
                                function instance.\r
\r
  @retval EFI_SUCCESS           The dispatch function has been successfully\r
                                registered, and the SMI source has been enabled.\r
  @retval EFI_DEVICE_ERROR      The driver could not enable the SMI source.\r
  @retval EFI_OUT_OF_RESOURCES  Not enough memory (system or SMM) to manage this\r
                                child.\r
  @retval EFI_INVALID_PARAMETER DispatchContext is invalid. The Standby Button SMI\r
                                phase is not within valid range.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SMM_STANDBY_BUTTON_REGISTER)(\r
  IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL          *This,\r
  IN EFI_SMM_STANDBY_BUTTON_DISPATCH                   DispatchFunction,\r
  IN EFI_SMM_STANDBY_BUTTON_DISPATCH_CONTEXT           *DispatchContext,\r
  OUT EFI_HANDLE                                       *DispatchHandle\r
  );\r
\r
/**\r
  Unregister a child SMI source dispatch function with a parent SMM driver.\r
\r
  @param  This                   The pointer to the EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL instance.\r
  @param  DispatchHandle         The handle of the service to remove.\r
\r
  @retval EFI_SUCCESS            The dispatch function has been successfully\r
                                 unregistered, and the SMI source has been disabled,\r
                                 if there are no other registered child dispatch\r
                                 functions for this SMI source.\r
  @retval EFI_INVALID_PARAMETER  The handle is invalid.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SMM_STANDBY_BUTTON_UNREGISTER)(\r
  IN EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL  *This,\r
  IN EFI_HANDLE                                DispatchHandle\r
  );\r
\r
//\r
// Interface structure for the SMM Standby Button SMI Dispatch Protocol\r
//\r
/**\r
  This protocol  provices the parent dispatch service for the standby button SMI source generator.\r
  Provides the ability to install child handlers for the given event types.\r
 **/\r
struct _EFI_SMM_STANDBY_BUTTON_DISPATCH_PROTOCOL {\r
  /// \r
  /// Installs a child service to be dispatched by this protocol.\r
  ///\r
  EFI_SMM_STANDBY_BUTTON_REGISTER   Register;\\r
  ///\r
  /// Removes a child service dispatched by this protocol.\r
  ///\r
  EFI_SMM_STANDBY_BUTTON_UNREGISTER UnRegister;\r
};\r
\r
extern EFI_GUID gEfiSmmStandbyButtonDispatchProtocolGuid;\r
\r
#endif\r