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1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2016, Hisilicon Limited. All rights reserved.\r | |
4 | * Copyright (c) 2016-2019, Linaro Limited. All rights reserved.\r | |
5 | * Copyright (c) 2021, Ampere Computing LLC. All rights reserved.\r | |
6 | *\r | |
7 | * SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
8 | *\r | |
9 | **/\r | |
10 | \r | |
11 | #ifndef _TIME_BASE_LIB_H_\r | |
12 | #define _TIME_BASE_LIB_H_\r | |
13 | \r | |
14 | #include <Uefi/UefiBaseType.h>\r | |
15 | \r | |
16 | //\r | |
17 | // Convenience macros to obtain a build date\r | |
18 | //\r | |
19 | // These macros should work for any compiler that follows ISO/IEC 9899,\r | |
20 | // in which case __DATE__ is defined as a "Mmm dd yyyy" 11 chars string,\r | |
21 | // but add an explicit filter for compilers that have been validated.\r | |
22 | //\r | |
23 | #if (defined (__GNUC__) || defined (_MSC_VER) || defined (__clang__))\r | |
24 | #define TIME_BUILD_YEAR (__DATE__[7] == '?' ? 1900\\r | |
25 | : (((__DATE__[7] - '0') * 1000 ) \\r | |
26 | + (__DATE__[8] - '0') * 100 \\r | |
27 | + (__DATE__[9] - '0') * 10 \\r | |
28 | + __DATE__[10] - '0'))\r | |
29 | #define TIME_BUILD_MONTH ( __DATE__ [2] == '?' ? 1 \\r | |
30 | : __DATE__ [2] == 'n' ? ( \\r | |
31 | __DATE__ [1] == 'a' ? 1 : 6) \\r | |
32 | : __DATE__ [2] == 'b' ? 2 \\r | |
33 | : __DATE__ [2] == 'r' ? ( \\r | |
34 | __DATE__ [0] == 'M' ? 3 : 4) \\r | |
35 | : __DATE__ [2] == 'y' ? 5 \\r | |
36 | : __DATE__ [2] == 'l' ? 7 \\r | |
37 | : __DATE__ [2] == 'g' ? 8 \\r | |
38 | : __DATE__ [2] == 'p' ? 9 \\r | |
39 | : __DATE__ [2] == 't' ? 10 \\r | |
40 | : __DATE__ [2] == 'v' ? 11 \\r | |
41 | : 12)\r | |
42 | #define TIME_BUILD_DAY ( __DATE__[4] == '?' ? 1 \\r | |
43 | : ((__DATE__[4] == ' ' ? 0 : \\r | |
44 | ((__DATE__[4] - '0') * 10)) \\r | |
45 | + __DATE__[5] - '0'))\r | |
46 | #endif\r | |
47 | \r | |
48 | // Define EPOCH (1970-JANUARY-01) in the Julian Date representation\r | |
49 | #define EPOCH_JULIAN_DATE 2440588\r | |
50 | \r | |
51 | // Seconds per unit\r | |
52 | #define SEC_PER_MIN ((UINTN) 60)\r | |
53 | #define SEC_PER_HOUR ((UINTN) 3600)\r | |
54 | #define SEC_PER_DAY ((UINTN) 86400)\r | |
55 | \r | |
56 | /**\r | |
57 | Check if it is a leap year.\r | |
58 | \r | |
59 | @param Time The UEFI time to be checked.\r | |
60 | \r | |
61 | @retval TRUE It is a leap year.\r | |
62 | @retval FALSE It is NOT a leap year.\r | |
63 | \r | |
64 | **/\r | |
65 | BOOLEAN\r | |
66 | EFIAPI\r | |
67 | IsLeapYear (\r | |
68 | IN EFI_TIME *Time\r | |
69 | );\r | |
70 | \r | |
71 | /**\r | |
72 | Check if the day in the UEFI time is valid.\r | |
73 | \r | |
74 | @param Time The UEFI time to be checked.\r | |
75 | \r | |
76 | @retval TRUE Valid.\r | |
77 | @retval FALSE Invalid.\r | |
78 | \r | |
79 | **/\r | |
80 | BOOLEAN\r | |
81 | EFIAPI\r | |
82 | IsDayValid (\r | |
83 | IN EFI_TIME *Time\r | |
84 | );\r | |
85 | \r | |
86 | /**\r | |
87 | Check if the time zone is valid.\r | |
88 | Valid values are between -1440 and 1440 or 2047 (EFI_UNSPECIFIED_TIMEZONE).\r | |
89 | \r | |
90 | @param TimeZone The time zone to be checked.\r | |
91 | \r | |
92 | @retval TRUE Valid.\r | |
93 | @retval FALSE Invalid.\r | |
94 | \r | |
95 | **/\r | |
96 | BOOLEAN\r | |
97 | EFIAPI\r | |
98 | IsValidTimeZone (\r | |
99 | IN INT16 TimeZone\r | |
100 | );\r | |
101 | \r | |
102 | /**\r | |
103 | Check if the daylight is valid.\r | |
104 | Valid values are:\r | |
105 | 0 : Time is not affected.\r | |
106 | 1 : Time is affected, and has not been adjusted for daylight savings.\r | |
107 | 3 : Time is affected, and has been adjusted for daylight savings.\r | |
108 | All other values are invalid.\r | |
109 | \r | |
110 | @param Daylight The daylight to be checked.\r | |
111 | \r | |
112 | @retval TRUE Valid.\r | |
113 | @retval FALSE Invalid.\r | |
114 | \r | |
115 | **/\r | |
116 | BOOLEAN\r | |
117 | EFIAPI\r | |
118 | IsValidDaylight (\r | |
119 | IN INT8 Daylight\r | |
120 | );\r | |
121 | \r | |
122 | /**\r | |
123 | Check if the UEFI time is valid.\r | |
124 | \r | |
125 | @param Time The UEFI time to be checked.\r | |
126 | \r | |
127 | @retval TRUE Valid.\r | |
128 | @retval FALSE Invalid.\r | |
129 | \r | |
130 | **/\r | |
131 | BOOLEAN\r | |
132 | EFIAPI\r | |
133 | IsTimeValid (\r | |
134 | IN EFI_TIME *Time\r | |
135 | );\r | |
136 | \r | |
137 | /**\r | |
138 | Converts Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC) to EFI_TIME.\r | |
139 | \r | |
140 | @param EpochSeconds Epoch seconds.\r | |
141 | @param Time The time converted to UEFI format.\r | |
142 | \r | |
143 | **/\r | |
144 | VOID\r | |
145 | EFIAPI\r | |
146 | EpochToEfiTime (\r | |
147 | IN UINTN EpochSeconds,\r | |
148 | OUT EFI_TIME *Time\r | |
149 | );\r | |
150 | \r | |
151 | /**\r | |
152 | Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01, 00:00:00 UTC).\r | |
153 | \r | |
154 | @param Time The UEFI time to be converted.\r | |
155 | \r | |
156 | @return Number of seconds.\r | |
157 | \r | |
158 | **/\r | |
159 | UINTN\r | |
160 | EFIAPI\r | |
161 | EfiTimeToEpoch (\r | |
162 | IN EFI_TIME *Time\r | |
163 | );\r | |
164 | \r | |
165 | /**\r | |
166 | Get the day of the week from the UEFI time.\r | |
167 | \r | |
168 | @param Time The UEFI time to be calculated.\r | |
169 | \r | |
170 | @return The day of the week: Sunday=0, Monday=1, ... Saturday=6\r | |
171 | \r | |
172 | **/\r | |
173 | UINTN\r | |
174 | EfiTimeToWday (\r | |
175 | IN EFI_TIME *Time\r | |
176 | );\r | |
177 | \r | |
178 | #endif\r |