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98419ef4 | 1 | /** @file\r |
2 | PCI Incompatible device support Libary.\r | |
3 | \r | |
4 | Copyright (c) 2007 Intel Corporation. All rights reserved. <BR>\r | |
5 | This software and associated documentation (if any) is furnished\r | |
6 | under a license and may only be used or copied in accordance\r | |
7 | with the terms of the license. Except as permitted by such\r | |
8 | license, no part of this software or documentation may be\r | |
9 | reproduced, stored in a retrieval system, or transmitted in any\r | |
10 | form or by any means without the express written consent of\r | |
11 | Intel Corporation.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #define PCI_REGISTER_READ 0xfffffffffffffff1ULL\r | |
16 | #define PCI_REGISTER_WRITE 0xfffffffffffffff2ULL\r | |
17 | #define VALUE_NOCARE 0xffffffffffffffffULL\r | |
18 | \r | |
19 | //\r | |
20 | // PCI device device information\r | |
21 | //\r | |
22 | typedef struct {\r | |
23 | UINT64 VendorID;\r | |
24 | UINT64 DeviceID;\r | |
25 | UINT64 RevisionID;\r | |
26 | UINT64 SubsystemVendorID;\r | |
27 | UINT64 SubsystemID;\r | |
28 | } EFI_PCI_DEVICE_INFO;\r | |
29 | \r | |
30 | \r | |
31 | //\r | |
32 | // store hardcode value of resgister\r | |
33 | //\r | |
34 | typedef struct {\r | |
35 | UINT64 AndValue;\r | |
36 | UINT64 OrValue;\r | |
37 | } EFI_PCI_REGISTER_VALUE_DATA;\r | |
38 | \r | |
39 | //\r | |
40 | // store access width information\r | |
41 | //\r | |
42 | typedef struct {\r | |
43 | UINT64 StartOffset;\r | |
44 | UINT64 EndOffset;\r | |
45 | UINT64 Width;\r | |
46 | } EFI_PCI_REGISTER_ACCESS_DATA;\r | |
47 | \r | |
48 | \r | |
49 | //\r | |
50 | // ACPI resource descriptor\r | |
51 | //\r | |
52 | typedef struct {\r | |
53 | UINT64 ResType;\r | |
54 | UINT64 GenFlag;\r | |
55 | UINT64 SpecificFlag;\r | |
56 | UINT64 AddrSpaceGranularity;\r | |
57 | UINT64 AddrRangeMin;\r | |
58 | UINT64 AddrRangeMax;\r | |
59 | UINT64 AddrTranslationOffset;\r | |
60 | UINT64 AddrLen;\r | |
61 | } EFI_PCI_RESOUCE_DESCRIPTOR;\r | |
62 | \r | |
63 | /**\r | |
64 | Checks the incompatible device list for ACPI resource update and return\r | |
65 | the configuration.\r | |
66 | \r | |
67 | This function searches the incompatible device list according to request\r | |
68 | information. If the PCI device belongs to the devices list, corresponding\r | |
69 | configuration informtion will be returned, in the meantime return EFI_SUCCESS.\r | |
70 | \r | |
71 | @param PciDeviceInfo A pointer to PCI device information.\r | |
72 | @param Configuration Returned information.\r | |
73 | \r | |
74 | @retval returns EFI_SUCCESS if check incompatible device ok.\r | |
75 | Otherwise return EFI_UNSUPPORTED.\r | |
76 | **/\r | |
77 | RETURN_STATUS\r | |
78 | EFIAPI\r | |
79 | PciResourceUpdateCheck (\r | |
80 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r | |
81 | OUT VOID *Configuration\r | |
82 | );\r | |
83 | \r | |
84 | /**\r | |
85 | Checks the incompatible device list and return configuration register mask values.\r | |
86 | \r | |
87 | This function searches the incompatible device list according to request\r | |
88 | information. If the PCI device belongs to the devices list, corresponding\r | |
89 | configuration informtion will be returned, in the meantime return EFI_SUCCESS.\r | |
90 | \r | |
91 | @param PciDeviceInfo A pointer to EFI_PCI_DEVICE_INFO.\r | |
92 | @param AccessType Access Type, READ or WRITE.\r | |
93 | @param Offset The address within the PCI configuration space.\r | |
94 | @param Configuration Returned information.\r | |
95 | \r | |
96 | @retval returns EFI_SUCCESS if check incompatible device ok.\r | |
97 | Otherwise return EFI_UNSUPPORTED.\r | |
98 | **/\r | |
99 | RETURN_STATUS\r | |
100 | EFIAPI\r | |
101 | PciRegisterUpdateCheck (\r | |
102 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r | |
103 | IN UINT64 AccessType,\r | |
104 | IN UINT64 Offset,\r | |
105 | OUT VOID *Configuration\r | |
106 | );\r | |
107 | \r | |
108 | /**\r | |
109 | Checks the incompatible device list for access width incompatibility and\r | |
110 | return the configuration\r | |
111 | \r | |
112 | This function searches the incompatible device list for access width\r | |
113 | incompatibility according to request information. If the PCI device\r | |
114 | belongs to the devices list, corresponding configuration informtion\r | |
115 | will be returned, in the meantime return EFI_SUCCESS.\r | |
116 | \r | |
117 | @param PciDeviceInfo A pointer to PCI device information.\r | |
118 | @param AccessType Access type, READ or WRITE.\r | |
119 | @param Offset The address within the PCI configuration space.\r | |
120 | @param AccessWidth Access width needs to check incompatibility.\r | |
121 | @param Configuration Returned information.\r | |
122 | \r | |
123 | @retval returns EFI_SUCCESS if check incompatible device ok.\r | |
124 | Otherwise return EFI_UNSUPPORTED.\r | |
125 | **/\r | |
126 | RETURN_STATUS\r | |
127 | EFIAPI\r | |
128 | PciRegisterAccessCheck (\r | |
129 | IN EFI_PCI_DEVICE_INFO *PciDeviceInfo,\r | |
130 | IN UINT64 AccessType,\r | |
131 | IN UINT64 Offset,\r | |
132 | IN UINT64 AccessWidth,\r | |
133 | OUT VOID *Configuration\r | |
134 | );\r |