1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/** @file
Provides the parent dispatch service for a given Sx-state 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.
Module Name: SmmSxDispatch.h
@par Revision Reference:
This Protocol is defined in Framework of EFI SMM Core Interface Spec
Version 0.9.
**/
#ifndef _EFI_SMM_SX_DISPATCH_H_
#define _EFI_SMM_SX_DISPATCH_H_
#include <PiDxe.h>
//
// Global ID for the Sx SMI Protocol
//
#define EFI_SMM_SX_DISPATCH_PROTOCOL_GUID \
{ \
0x14fc52be, 0x1dc, 0x426c, {0x91, 0xae, 0xa2, 0x3c, 0x3e, 0x22, 0xa, 0xe8 } \
}
typedef struct _EFI_SMM_SX_DISPATCH_PROTOCOL EFI_SMM_SX_DISPATCH_PROTOCOL;
//
// Related Definitions
//
typedef enum {
SxS0,
SxS1,
SxS2,
SxS3,
SxS4,
SxS5,
EfiMaximumSleepType
} EFI_SLEEP_TYPE;
typedef enum {
SxEntry,
SxExit,
EfiMaximumPhase
} EFI_SLEEP_PHASE;
typedef struct {
EFI_SLEEP_TYPE Type;
EFI_SLEEP_PHASE Phase;
} EFI_SMM_SX_DISPATCH_CONTEXT;
//
// Member functions
//
/**
Dispatch function for a Sx state SMI handler.
@param DispatchHandle Handle of this dispatch function.
@param DispatchContext Pointer to the dispatch function's context.
The Type and Phase fields are filled in by the Sx dispatch driver
prior to invoking this dispatch function. For this interface,
the Sx driver will call the dispatch function for all Sx type
and phases, so the Sx state handler(s) must check the Type and
Phase field of EFI_SMM_SX_DISPATCH_CONTEXT and act accordingly.
@return None
**/
typedef
VOID
(EFIAPI *EFI_SMM_SX_DISPATCH)(
IN EFI_HANDLE DispatchHandle,
IN EFI_SMM_SX_DISPATCH_CONTEXT *DispatchContext
);
/**
Register a child SMI source dispatch function with a parent SMM driver
@param This Pointer to the EFI_SMM_SX_DISPATCH_PROTOCOL instance.
@param DispatchFunction Function to install.
@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 which Sx state type and phase the caller
wishes to be called back on. For this intertace,
the Sx driver will call the registered handlers for
all Sx type and phases, so the Sx state handler(s)
must check the Type and Phase field of the Dispatch
context and act accordingly.
@param DispatchHandle Handle of dispatch function, for when interfacing
with the parent Sx state SMM driver.
@retval EFI_SUCCESS The dispatch function has been successfully
registered and the SMI source has been enabled.
@retval EFI_UNSUPPORTED The Sx driver or hardware does not support that
Sx Type/Phase.
@retval EFI_DEVICE_ERROR The Sx 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. Type & Phase are not
within valid range.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_SX_REGISTER)(
IN EFI_SMM_SX_DISPATCH_PROTOCOL *This,
IN EFI_SMM_SX_DISPATCH DispatchFunction,
IN EFI_SMM_SX_DISPATCH_CONTEXT *DispatchContext,
OUT EFI_HANDLE *DispatchHandle
);
/**
Unregisters an Sx-state service
@param This Pointer to the EFI_SMM_SX_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 Handle is invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SMM_SX_UNREGISTER)(
IN EFI_SMM_SX_DISPATCH_PROTOCOL *This,
IN EFI_HANDLE DispatchHandle
);
//
// Interface structure for the SMM Child Dispatch Protocol
//
/**
Provides the parent dispatch service for a given Sx-state source generator.
**/
struct _EFI_SMM_SX_DISPATCH_PROTOCOL {
EFI_SMM_SX_REGISTER Register; ///< Installs a child service to be dispatched by this protocol.
EFI_SMM_SX_UNREGISTER UnRegister; ///< Removes a child service dispatched by this protocol.
};
extern EFI_GUID gEfiSmmSxDispatchProtocolGuid;
#endif
|
