1 /** @file 2 The instance of Post Code Library that layers on top of a Debug Library instance. 3 4 Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php. 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include <Base.h> 16 17 #include <Library/PostCodeLib.h> 18 #include <Library/DebugLib.h> 19 #include <Library/PcdLib.h> 20 21 /** 22 Sends an 32-bit value to a POST card. 23 24 Sends the 32-bit value specified by Value to a POST card, and returns Value. 25 Some implementations of this library function may perform I/O operations 26 directly to a POST card device. Other implementations may send Value to 27 ReportStatusCode(), and the status code reporting mechanism will eventually 28 display the 32-bit value on the status reporting device. 29 30 PostCode() must actively prevent recursion. If PostCode() is called while 31 processing another any other Post Code Library function, then 32 PostCode() must return Value immediately. 33 34 @param Value The 32-bit value to write to the POST card. 35 36 @return The 32-bit value to write to the POST card. 37 38 **/ 39 UINT32 40 EFIAPI 41 PostCode ( 42 IN UINT32 Value 43 ) 44 { 45 DEBUG((EFI_D_INFO, "POST %08x\n", Value)); 46 return Value; 47 } 48 49 50 /** 51 Sends an 32-bit value to a POST and associated ASCII string. 52 53 Sends the 32-bit value specified by Value to a POST card, and returns Value. 54 If Description is not NULL, then the ASCII string specified by Description is 55 also passed to the handler that displays the POST card value. Some 56 implementations of this library function may perform I/O operations directly 57 to a POST card device. Other implementations may send Value to ReportStatusCode(), 58 and the status code reporting mechanism will eventually display the 32-bit 59 value on the status reporting device. 60 61 PostCodeWithDescription()must actively prevent recursion. If 62 PostCodeWithDescription() is called while processing another any other Post 63 Code Library function, then PostCodeWithDescription() must return Value 64 immediately. 65 66 @param Value The 32-bit value to write to the POST card. 67 @param Description The pointer to an ASCII string that is a description of the 68 POST code value. This is an optional parameter that may 69 be NULL. 70 71 @return The 32-bit value to write to the POST card. 72 73 **/ 74 UINT32 75 EFIAPI 76 PostCodeWithDescription ( 77 IN UINT32 Value, 78 IN CONST CHAR8 *Description OPTIONAL 79 ) 80 { 81 DEBUG((EFI_D_INFO, "POST %08x - %s\n", Value, Description)); 82 return Value; 83 } 84 85 86 /** 87 Returns TRUE if POST Codes are enabled. 88 89 This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_ENABLED 90 bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned. 91 92 @retval TRUE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of 93 PcdPostCodeProperyMask is set. 94 @retval FALSE The POST_CODE_PROPERTY_POST_CODE_ENABLED bit of 95 PcdPostCodeProperyMask is clear. 96 97 **/ 98 BOOLEAN 99 EFIAPI 100 PostCodeEnabled ( 101 VOID 102 ) 103 { 104 return (BOOLEAN) ((PcdGet8(PcdPostCodePropertyMask) & POST_CODE_PROPERTY_POST_CODE_ENABLED) != 0); 105 } 106 107 108 /** 109 Returns TRUE if POST code descriptions are enabled. 110 111 This function returns TRUE if the POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED 112 bit of PcdPostCodePropertyMask is set. Otherwise FALSE is returned. 113 114 @retval TRUE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of 115 PcdPostCodeProperyMask is set. 116 @retval FALSE The POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED bit of 117 PcdPostCodeProperyMask is clear. 118 119 **/ 120 BOOLEAN 121 EFIAPI 122 PostCodeDescriptionEnabled ( 123 VOID 124 ) 125 { 126 return (BOOLEAN) ((PcdGet8(PcdPostCodePropertyMask) & POST_CODE_PROPERTY_POST_CODE_DESCRIPTION_ENABLED) != 0); 127 } 128
