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1 | /** @file\r | |
2 | Provides Set/Get time operations.\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include "PcRtc.h"\r | |
10 | \r | |
11 | PC_RTC_MODULE_GLOBALS mModuleGlobal;\r | |
12 | \r | |
13 | EFI_HANDLE mHandle = NULL;\r | |
14 | \r | |
15 | /**\r | |
16 | Returns the current time and date information, and the time-keeping capabilities\r | |
17 | of the hardware platform.\r | |
18 | \r | |
19 | @param Time A pointer to storage to receive a snapshot of the current time.\r | |
20 | @param Capabilities An optional pointer to a buffer to receive the real time\r | |
21 | clock device's capabilities.\r | |
22 | \r | |
23 | @retval EFI_SUCCESS The operation completed successfully.\r | |
24 | @retval EFI_INVALID_PARAMETER Time is NULL.\r | |
25 | @retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.\r | |
26 | \r | |
27 | **/\r | |
28 | EFI_STATUS\r | |
29 | EFIAPI\r | |
30 | PcRtcEfiGetTime (\r | |
31 | OUT EFI_TIME *Time,\r | |
32 | OUT EFI_TIME_CAPABILITIES *Capabilities OPTIONAL\r | |
33 | )\r | |
34 | {\r | |
35 | return PcRtcGetTime (Time, Capabilities, &mModuleGlobal);\r | |
36 | }\r | |
37 | \r | |
38 | /**\r | |
39 | Sets the current local time and date information.\r | |
40 | \r | |
41 | @param Time A pointer to the current time.\r | |
42 | \r | |
43 | @retval EFI_SUCCESS The operation completed successfully.\r | |
44 | @retval EFI_INVALID_PARAMETER A time field is out of range.\r | |
45 | @retval EFI_DEVICE_ERROR The time could not be set due due to hardware error.\r | |
46 | \r | |
47 | **/\r | |
48 | EFI_STATUS\r | |
49 | EFIAPI\r | |
50 | PcRtcEfiSetTime (\r | |
51 | IN EFI_TIME *Time\r | |
52 | )\r | |
53 | {\r | |
54 | return PcRtcSetTime (Time, &mModuleGlobal);\r | |
55 | }\r | |
56 | \r | |
57 | /**\r | |
58 | Returns the current wakeup alarm clock setting.\r | |
59 | \r | |
60 | @param Enabled Indicates if the alarm is currently enabled or disabled.\r | |
61 | @param Pending Indicates if the alarm signal is pending and requires acknowledgement.\r | |
62 | @param Time The current alarm setting.\r | |
63 | \r | |
64 | @retval EFI_SUCCESS The alarm settings were returned.\r | |
65 | @retval EFI_INVALID_PARAMETER Enabled is NULL.\r | |
66 | @retval EFI_INVALID_PARAMETER Pending is NULL.\r | |
67 | @retval EFI_INVALID_PARAMETER Time is NULL.\r | |
68 | @retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error.\r | |
69 | @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.\r | |
70 | \r | |
71 | **/\r | |
72 | EFI_STATUS\r | |
73 | EFIAPI\r | |
74 | PcRtcEfiGetWakeupTime (\r | |
75 | OUT BOOLEAN *Enabled,\r | |
76 | OUT BOOLEAN *Pending,\r | |
77 | OUT EFI_TIME *Time\r | |
78 | )\r | |
79 | {\r | |
80 | return PcRtcGetWakeupTime (Enabled, Pending, Time, &mModuleGlobal);\r | |
81 | }\r | |
82 | \r | |
83 | \r | |
84 | /**\r | |
85 | Sets the system wakeup alarm clock time.\r | |
86 | \r | |
87 | @param Enabled Enable or disable the wakeup alarm.\r | |
88 | @param Time If Enable is TRUE, the time to set the wakeup alarm for.\r | |
89 | If Enable is FALSE, then this parameter is optional, and may be NULL.\r | |
90 | \r | |
91 | @retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled.\r | |
92 | If Enable is FALSE, then the wakeup alarm was disabled.\r | |
93 | @retval EFI_INVALID_PARAMETER A time field is out of range.\r | |
94 | @retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error.\r | |
95 | @retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.\r | |
96 | \r | |
97 | **/\r | |
98 | EFI_STATUS\r | |
99 | EFIAPI\r | |
100 | PcRtcEfiSetWakeupTime (\r | |
101 | IN BOOLEAN Enabled,\r | |
102 | IN EFI_TIME *Time OPTIONAL\r | |
103 | )\r | |
104 | {\r | |
105 | return PcRtcSetWakeupTime (Enabled, Time, &mModuleGlobal);\r | |
106 | }\r | |
107 | \r | |
108 | /**\r | |
109 | The user Entry Point for PcRTC module.\r | |
110 | \r | |
111 | This is the entry point for PcRTC module. It installs the UEFI runtime service\r | |
112 | including GetTime(),SetTime(),GetWakeupTime(),and SetWakeupTime().\r | |
113 | \r | |
114 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
115 | @param SystemTable A pointer to the EFI System Table.\r | |
116 | \r | |
117 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
118 | @retval Others Some error occurs when executing this entry point.\r | |
119 | \r | |
120 | **/\r | |
121 | EFI_STATUS\r | |
122 | EFIAPI\r | |
123 | InitializePcRtc (\r | |
124 | IN EFI_HANDLE ImageHandle,\r | |
125 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
126 | )\r | |
127 | {\r | |
128 | EFI_STATUS Status;\r | |
129 | EFI_EVENT Event;\r | |
130 | \r | |
131 | EfiInitializeLock (&mModuleGlobal.RtcLock, TPL_CALLBACK);\r | |
132 | mModuleGlobal.CenturyRtcAddress = GetCenturyRtcAddress ();\r | |
133 | \r | |
134 | Status = PcRtcInit (&mModuleGlobal);\r | |
135 | ASSERT_EFI_ERROR (Status);\r | |
136 | \r | |
137 | Status = gBS->CreateEventEx (\r | |
138 | EVT_NOTIFY_SIGNAL,\r | |
139 | TPL_CALLBACK,\r | |
140 | PcRtcAcpiTableChangeCallback,\r | |
141 | NULL,\r | |
142 | &gEfiAcpi10TableGuid,\r | |
143 | &Event\r | |
144 | );\r | |
145 | ASSERT_EFI_ERROR (Status);\r | |
146 | \r | |
147 | Status = gBS->CreateEventEx (\r | |
148 | EVT_NOTIFY_SIGNAL,\r | |
149 | TPL_CALLBACK,\r | |
150 | PcRtcAcpiTableChangeCallback,\r | |
151 | NULL,\r | |
152 | &gEfiAcpiTableGuid,\r | |
153 | &Event\r | |
154 | );\r | |
155 | ASSERT_EFI_ERROR (Status);\r | |
156 | \r | |
157 | gRT->GetTime = PcRtcEfiGetTime;\r | |
158 | gRT->SetTime = PcRtcEfiSetTime;\r | |
159 | gRT->GetWakeupTime = PcRtcEfiGetWakeupTime;\r | |
160 | gRT->SetWakeupTime = PcRtcEfiSetWakeupTime;\r | |
161 | \r | |
162 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
163 | &mHandle,\r | |
164 | &gEfiRealTimeClockArchProtocolGuid,\r | |
165 | NULL,\r | |
166 | NULL\r | |
167 | );\r | |
168 | ASSERT_EFI_ERROR (Status);\r | |
169 | \r | |
170 | return Status;\r | |
171 | }\r |