mirror of https://github.com/acidanthera/audk.git
142 lines
5.0 KiB
C
142 lines
5.0 KiB
C
/** @file
|
|
Provides the parent dispatch service for the USB SMI source generator.
|
|
|
|
Copyright (c) 2007 - 2009, Intel Corporation
|
|
All rights reserved. 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.
|
|
|
|
@par Revision Reference:
|
|
This Protocol is defined in Framework of EFI SMM Core Interface Spec
|
|
Version 0.9.
|
|
|
|
**/
|
|
|
|
#ifndef _EFI_SMM_USB_DISPATCH_H_
|
|
#define _EFI_SMM_USB_DISPATCH_H_
|
|
|
|
#include <PiDxe.h>
|
|
|
|
//
|
|
// Global ID for the USB Protocol
|
|
//
|
|
#define EFI_SMM_USB_DISPATCH_PROTOCOL_GUID \
|
|
{ \
|
|
0xa05b6ffd, 0x87af, 0x4e42, {0x95, 0xc9, 0x62, 0x28, 0xb6, 0x3c, 0xf3, 0xf3 } \
|
|
}
|
|
|
|
typedef struct _EFI_SMM_USB_DISPATCH_PROTOCOL EFI_SMM_USB_DISPATCH_PROTOCOL;
|
|
|
|
//
|
|
// Related Definitions
|
|
//
|
|
typedef enum {
|
|
UsbLegacy,
|
|
UsbWake
|
|
} EFI_USB_SMI_TYPE;
|
|
|
|
typedef struct {
|
|
///
|
|
/// Describes whether this child handler will be invoked in response to a USB legacy
|
|
/// emulation event, such as port-trap on the PS/2* keyboard control registers, or to a
|
|
/// USB wake event, such as resumption from a sleep state.
|
|
///
|
|
EFI_USB_SMI_TYPE Type;
|
|
///
|
|
/// The device path is part of the context structure and describes the location of the
|
|
/// particular USB host controller in the system for which this register event will occur.
|
|
/// This location is important because of the possible integration of several USB host
|
|
/// controllers in a system.
|
|
///
|
|
EFI_DEVICE_PATH_PROTOCOL *Device;
|
|
} EFI_SMM_USB_DISPATCH_CONTEXT;
|
|
|
|
//
|
|
// Member functions
|
|
//
|
|
/**
|
|
Dispatch function for a USB SMI handler.
|
|
|
|
@param DispatchHandle Handle of this dispatch function.
|
|
@param 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_USB_DISPATCH)(
|
|
IN EFI_HANDLE DispatchHandle,
|
|
IN EFI_SMM_USB_DISPATCH_CONTEXT *DispatchContext
|
|
);
|
|
|
|
/**
|
|
Register a child SMI source dispatch function with a parent SMM driver.
|
|
|
|
@param This Pointer to the EFI_SMM_USB_DISPATCH_PROTOCOL instance.
|
|
@param DispatchFunction Pointer to dispatch function to be invoked
|
|
for this SMI source.
|
|
@param 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 USB SMI types for which the dispatch
|
|
function should be invoked.
|
|
@param DispatchHandle 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 USB SMI type
|
|
is not within valid range.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_USB_REGISTER)(
|
|
IN EFI_SMM_USB_DISPATCH_PROTOCOL *This,
|
|
IN EFI_SMM_USB_DISPATCH DispatchFunction,
|
|
IN EFI_SMM_USB_DISPATCH_CONTEXT *DispatchContext,
|
|
OUT EFI_HANDLE *DispatchHandle
|
|
);
|
|
|
|
/**
|
|
Unregisters a USB service.
|
|
|
|
@param This Pointer to the EFI_SMM_USB_DISPATCH_PROTOCOL instance.
|
|
@param DispatchHandle 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 The DispatchHandle was not valid.
|
|
|
|
**/
|
|
typedef
|
|
EFI_STATUS
|
|
(EFIAPI *EFI_SMM_USB_UNREGISTER)(
|
|
IN EFI_SMM_USB_DISPATCH_PROTOCOL *This,
|
|
IN EFI_HANDLE DispatchHandle
|
|
);
|
|
|
|
///
|
|
/// The EFI_SMM_USB_DISPATCH_PROTOCOL provides the ability to install child handlers for the
|
|
/// given event types.
|
|
///
|
|
struct _EFI_SMM_USB_DISPATCH_PROTOCOL {
|
|
EFI_SMM_USB_REGISTER Register;
|
|
EFI_SMM_USB_UNREGISTER UnRegister;
|
|
};
|
|
|
|
extern EFI_GUID gEfiSmmUsbDispatchProtocolGuid;
|
|
|
|
#endif
|