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
153
154
155
156
157
158
159
160
|
/** @file
Copyright (c) 2018, 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 _PCH_P2SB_LIB_H_
#define _PCH_P2SB_LIB_H_
/**
Get P2SB pci configuration register.
It returns register at Offset of P2SB controller and size in 4bytes.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[out] OutData Buffer of Output Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgGet32 (
IN UINTN Offset,
OUT UINT32 *OutData
);
/**
Get P2SB pci configuration register.
It returns register at Offset of P2SB controller and size in 2bytes.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[out] OutData Buffer of Output Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgGet16 (
IN UINTN Offset,
OUT UINT16 *OutData
);
/**
Get P2SB pci configuration register.
It returns register at Offset of P2SB controller and size in 1byte.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[out] OutData Buffer of Output Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgGet8 (
IN UINTN Offset,
OUT UINT8 *OutData
);
/**
Set P2SB pci configuration register.
It programs register at Offset of P2SB controller and size in 4bytes.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[in] AndData AND Data. Must be the same size as Size parameter.
@param[in] OrData OR Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgSet32 (
IN UINTN Offset,
IN UINT32 AndData,
IN UINT32 OrData
);
/**
Set P2SB pci configuration register.
It programs register at Offset of P2SB controller and size in 2bytes.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[in] AndData AND Data. Must be the same size as Size parameter.
@param[in] OrData OR Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgSet16 (
IN UINTN Offset,
IN UINT16 AndData,
IN UINT16 OrData
);
/**
Set P2SB pci configuration register.
It programs register at Offset of P2SB controller and size in 1bytes.
The Offset should not exceed 255 and must be aligned with size.
This function will be unavailable after P2SB is hidden by PSF.
@param[in] Offset Register offset of P2SB controller.
@param[in] AndData AND Data. Must be the same size as Size parameter.
@param[in] OrData OR Data. Must be the same size as Size parameter.
@retval EFI_SUCCESS Successfully completed.
@retval EFI_INVALID_PARAMETER Invalid offset passed.
**/
EFI_STATUS
PchP2sbCfgSet8 (
IN UINTN Offset,
IN UINT8 AndData,
IN UINT8 OrData
);
/**
Hide P2SB device.
@param[in] P2sbBase Pci base address of P2SB controller.
@retval EFI_SUCCESS Always return success.
**/
EFI_STATUS
PchHideP2sb (
IN UINTN P2sbBase
);
/**
Reveal P2SB device.
Also return the original P2SB status which is for Hidding P2SB or not after.
If OrgStatus is not NULL, then TRUE means P2SB is unhidden,
and FALSE means P2SB is hidden originally.
@param[in] P2sbBase Pci base address of P2SB controller.
@param[out] OrgStatus Original P2SB hidding/unhidden status
@retval EFI_SUCCESS Always return success.
**/
EFI_STATUS
PchRevealP2sb (
IN UINTN P2sbBase,
OUT BOOLEAN *OrgStatus
);
#endif // _PCH_P2SB_LIB_H_
|
