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e1f414b6 | 1 | /** @file\r |
afa22326 | 2 | The instance of Post Code Library that layers on top of a Debug Library instance.\r |
e1f414b6 | 3 | \r |
9095d37b | 4 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e1f414b6 | 6 | \r |
7 | **/\r | |
8 | \r | |
c7d265a9 | 9 | #include <Base.h>\r |
c892d846 | 10 | \r |
c7d265a9 | 11 | #include <Library/PostCodeLib.h>\r |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/PcdLib.h>\r | |
e1f414b6 | 14 | \r |
15 | /**\r | |
16 | Sends an 32-bit value to a POST card.\r | |
17 | \r | |
9095d37b LG |
18 | Sends the 32-bit value specified by Value to a POST card, and returns Value.\r |
19 | Some implementations of this library function may perform I/O operations\r | |
20 | directly to a POST card device. Other implementations may send Value to\r | |
21 | ReportStatusCode(), and the status code reporting mechanism will eventually\r | |
e1f414b6 | 22 | display the 32-bit value on the status reporting device.\r |
9095d37b LG |
23 | \r |
24 | PostCode() must actively prevent recursion. If PostCode() is called while\r | |
25 | processing another any other Post Code Library function, then\r | |
e1f414b6 | 26 | PostCode() must return Value immediately.\r |
27 | \r | |
122e2191 | 28 | @param Value The 32-bit value to write to the POST card.\r |
e1f414b6 | 29 | \r |
122e2191 | 30 | @return The 32-bit value to write to the POST card.\r |
e1f414b6 | 31 | \r |
32 | **/\r | |
33 | UINT32\r | |
34 | EFIAPI\r | |
35 | PostCode (\r | |
36 | IN UINT32 Value\r | |
37 | )\r | |
38 | {\r | |
39 | DEBUG((EFI_D_INFO, "POST %08x\n", Value));\r | |
40 | return Value;\r | |
41 | }\r | |
42 | \r | |
43 | \r | |
44 | /**\r | |
45 | Sends an 32-bit value to a POST and associated ASCII string.\r | |
46 | \r | |
47 | Sends the 32-bit value specified by Value to a POST card, and returns Value.\r | |
9095d37b LG |
48 | If Description is not NULL, then the ASCII string specified by Description is\r |
49 | also passed to the handler that displays the POST card value. Some\r | |
50 | implementations of this library function may perform I/O operations directly\r | |
51 | to a POST card device. Other implementations may send Value to ReportStatusCode(),\r | |
52 | and the status code reporting mechanism will eventually display the 32-bit\r | |
53 | value on the status reporting device.\r | |
54 | \r | |
55 | PostCodeWithDescription()must actively prevent recursion. If\r | |
56 | PostCodeWithDescription() is called while processing another any other Post\r | |
57 | Code Library function, then PostCodeWithDescription() must return Value\r | |
e1f414b6 | 58 | immediately.\r |
59 | \r | |
60 | @param Value The 32-bit value to write to the POST card.\r | |
9095d37b LG |
61 | @param Description The pointer to an ASCII string that is a description of the\r |
62 | POST code value. This is an optional parameter that may\r | |
e1f414b6 | 63 | be NULL.\r |
64 | \r | |
afa22326 | 65 | @return The 32-bit value to write to the POST card.\r |
e1f414b6 | 66 | \r |
67 | **/\r | |
68 | UINT32\r | |
69 | EFIAPI\r | |
70 | PostCodeWithDescription (\r | |
71 | IN UINT32 Value,\r | |
72 | IN CONST CHAR8 *Description OPTIONAL\r | |
73 | )\r | |
74 | {\r | |
75 | DEBUG((EFI_D_INFO, "POST %08x - %s\n", Value, Description));\r | |
76 | return Value;\r | |
77 | }\r | |
78 | \r | |
79 | \r | |
80 | /**\r | |
81 | Returns TRUE if POST Codes are enabled.\r | |
82 | \r | |
9095d37b | 83 | This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_ENABLED\r |
e1f414b6 | 84 | bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.\r |
85 | \r | |
9095d37b | 86 | @retval TRUE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of\r |
e1f414b6 | 87 | PcdPostCodeProperyMask is set.\r |
9095d37b | 88 | @retval FALSE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of\r |
e1f414b6 | 89 | PcdPostCodeProperyMask is clear.\r |
90 | \r | |
91 | **/\r | |
92 | BOOLEAN\r | |
93 | EFIAPI\r | |
94 | PostCodeEnabled (\r | |
95 | VOID\r | |
96 | )\r | |
97 | {\r | |
98 | return (BOOLEAN) ((PcdGet8(PcdPostCodePropertyMask) & POST_CODE_PROPERTY_POST_CODE_ENABLED) != 0);\r | |
99 | }\r | |
100 | \r | |
101 | \r | |
102 | /**\r | |
103 | Returns TRUE if POST code descriptions are enabled.\r | |
104 | \r | |
eceb3a4c | 105 | This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED\r |
e1f414b6 | 106 | bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned.\r |
107 | \r | |
eceb3a4c | 108 | @retval TRUE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of\r |
e1f414b6 | 109 | PcdPostCodeProperyMask is set.\r |
eceb3a4c | 110 | @retval FALSE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of\r |
e1f414b6 | 111 | PcdPostCodeProperyMask is clear.\r |
112 | \r | |
113 | **/\r | |
114 | BOOLEAN\r | |
115 | EFIAPI\r | |
116 | PostCodeDescriptionEnabled (\r | |
117 | VOID\r | |
118 | )\r | |
119 | {\r | |
eceb3a4c | 120 | return (BOOLEAN) ((PcdGet8(PcdPostCodePropertyMask) & POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED) != 0);\r |
e1f414b6 | 121 | }\r |