[mirror_edk2.git] / Nt32Pkg / RealTimeClockRuntimeDxe / RealTimeClock.c

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
\r
  RealTimeClock.c\r
\r
Abstract:\r
\r
  NT Emulation Architectural Protocol Driver as defined in Tiano\r
\r
--*/\r
\r
\r
\r
//\r
// Include common header file for this module.\r
//\r
#include "CommonHeader.h"\r
\r
BOOLEAN\r
DayValid (\r
  IN  EFI_TIME  *Time\r
  );\r
\r
BOOLEAN\r
IsLeapYear (\r
  IN EFI_TIME   *Time\r
  );\r
\r
EFI_STATUS\r
RtcTimeFieldsValid (\r
  IN EFI_TIME *Time\r
  );\r
\r
EFI_STATUS\r
EFIAPI\r
InitializeRealTimeClock (\r
  IN EFI_HANDLE                          ImageHandle,\r
  IN EFI_SYSTEM_TABLE                    *SystemTable\r
  );\r
\r
STATIC\r
EFI_STATUS\r
EFIAPI\r
WinNtGetTime (\r
  OUT EFI_TIME                                 *Time,\r
  OUT EFI_TIME_CAPABILITIES                    *Capabilities OPTIONAL\r
  )\r
/*++\r
\r
Routine Description:\r
  Service routine for RealTimeClockInstance->GetTime \r
\r
Arguments:\r
\r
  Time          - A pointer to storage that will receive a snapshot of the current time.\r
\r
  Capabilities  - A pointer to storage that will receive the capabilities of the real time clock\r
                  in the platform. This includes the real time clock's resolution and accuracy.  \r
                  All reported device capabilities are rounded up.  This is an OPTIONAL argument.\r
\r
Returns:\r
\r
  EFI_SUCEESS   - The underlying GetSystemTime call occurred and returned\r
                  Note that in the NT32 emulation, the GetSystemTime call has no return value\r
                  thus you will always receive a EFI_SUCCESS on this.\r
\r
--*/\r
// TODO:    EFI_INVALID_PARAMETER - add return value to function comment\r
{\r
  SYSTEMTIME            SystemTime;\r
  TIME_ZONE_INFORMATION TimeZone;\r
\r
  //\r
  // Check parameter for null pointer\r
  //\r
  if (Time == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
\r
  }\r
\r
  gWinNt->GetLocalTime (&SystemTime);\r
  gWinNt->GetTimeZoneInformation (&TimeZone);\r
\r
  Time->Year        = (UINT16) SystemTime.wYear;\r
  Time->Month       = (UINT8) SystemTime.wMonth;\r
  Time->Day         = (UINT8) SystemTime.wDay;\r
  Time->Hour        = (UINT8) SystemTime.wHour;\r
  Time->Minute      = (UINT8) SystemTime.wMinute;\r
  Time->Second      = (UINT8) SystemTime.wSecond;\r
  Time->Nanosecond  = (UINT32) (SystemTime.wMilliseconds * 1000000);\r
  Time->TimeZone    = (INT16) TimeZone.Bias;\r
\r
  if (Capabilities != NULL) {\r
    Capabilities->Resolution  = 1;\r
    Capabilities->Accuracy    = 50000000;\r
    Capabilities->SetsToZero  = FALSE;\r
  }\r
\r
  Time->Daylight = 0;\r
  if (TimeZone.StandardDate.wMonth) {\r
    Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
STATIC\r
EFI_STATUS\r
EFIAPI\r
WinNtSetTime (\r
  IN EFI_TIME   *Time\r
  )\r
/*++\r
\r
Routine Description:\r
  Service routine for RealTimeClockInstance->SetTime \r
\r
Arguments:\r
\r
  Time          - A pointer to storage containing the time and date information to\r
                  program into the real time clock.\r
\r
Returns:\r
\r
  EFI_SUCEESS           - The operation completed successfully.\r
                  \r
  EFI_INVALID_PARAMETER - One of the fields in Time is out of range.\r
\r
  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.\r
\r
--*/\r
// TODO:    EFI_SUCCESS - add return value to function comment\r
{\r
  TIME_ZONE_INFORMATION TimeZone;\r
  EFI_STATUS            Status;\r
  SYSTEMTIME            SystemTime;\r
  BOOL                  Flag;\r
\r
  if (Time == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
  //\r
  // Make sure that the time fields are valid\r
  //\r
  Status = RtcTimeFieldsValid (Time);\r
  if (EFI_ERROR (Status)) {\r
    return Status;\r
  }\r
  //\r
  // Set Daylight savings time information and Time Zone\r
  //\r
  gWinNt->GetTimeZoneInformation (&TimeZone);\r
  TimeZone.StandardDate.wMonth  = Time->Daylight;\r
  TimeZone.Bias                 = Time->TimeZone;\r
  gWinNt->SetTimeZoneInformation (&TimeZone);\r
\r
  SystemTime.wYear          = Time->Year;\r
  SystemTime.wMonth         = Time->Month;\r
  SystemTime.wDay           = Time->Day;\r
  SystemTime.wHour          = Time->Hour;\r
  SystemTime.wMinute        = Time->Minute;\r
  SystemTime.wSecond        = Time->Second;\r
  SystemTime.wMilliseconds  = (INT16) (Time->Nanosecond / 1000000);\r
\r
  Flag                      = gWinNt->SetLocalTime (&SystemTime);\r
\r
  if (!Flag) {\r
    return EFI_DEVICE_ERROR;\r
  } else {\r
    return EFI_SUCCESS;\r
  }\r
}\r
\r
STATIC\r
EFI_STATUS\r
EFIAPI\r
WinNtGetWakeupTime (\r
  OUT BOOLEAN        *Enabled,\r
  OUT BOOLEAN        *Pending,\r
  OUT EFI_TIME       *Time\r
  )\r
/*++\r
\r
Routine Description:\r
  Service routine for RealTimeClockInstance->GetWakeupTime\r
\r
Arguments:\r
  This          - Indicates the protocol instance structure.\r
\r
  Enabled       - Indicates if the alarm is currently enabled or disabled.\r
\r
  Pending       - Indicates if the alarm signal is pending and requires\r
                  acknowledgement.\r
\r
  Time          - The current alarm setting.\r
\r
Returns:\r
\r
  EFI_SUCEESS           - The operation completed successfully.\r
                  \r
  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.\r
\r
  EFI_UNSUPPORTED       - The operation is not supported on this platform.\r
\r
--*/\r
{\r
  return EFI_UNSUPPORTED;\r
}\r
\r
STATIC\r
EFI_STATUS\r
EFIAPI\r
WinNtSetWakeupTime (\r
  IN BOOLEAN      Enable,\r
  OUT EFI_TIME    *Time\r
  )\r
/*++\r
\r
Routine Description:\r
  Service routine for RealTimeClockInstance->SetWakeupTime\r
\r
Arguments:\r
\r
  Enabled       - Enable or disable the wakeup alarm.\r
\r
  Time          - If enable is TRUE, the time to set the wakup alarm for.\r
                  If enable is FALSE, then this parameter is optional, and\r
                  may be NULL.\r
\r
Returns:\r
\r
  EFI_SUCEESS           - The operation completed successfully.\r
                  \r
  EFI_DEVICE_ERROR      - The operation could not be complete due to a device error.\r
\r
  EFI_INVALID_PARAMETER - A field in Time is out of range.\r
\r
  EFI_UNSUPPORTED       - The operation is not supported on this platform.\r
\r
--*/\r
{\r
  return EFI_UNSUPPORTED;\r
}\r
\r
EFI_STATUS\r
EFIAPI\r
InitializeRealTimeClock (\r
  IN EFI_HANDLE                            ImageHandle,\r
  IN EFI_SYSTEM_TABLE                      *SystemTable\r
  )\r
/*++\r
\r
Routine Description:\r
  Install Real Time Clock Protocol \r
\r
Arguments:\r
  (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)\r
\r
Returns:\r
\r
  EFI_SUCEESS - Real Time Clock Services are installed into the Runtime Services Table\r
\r
--*/\r
// TODO:    ImageHandle - add argument and description to function comment\r
// TODO:    SystemTable - add argument and description to function comment\r
{\r
  EFI_STATUS  Status;\r
  EFI_HANDLE  Handle;\r
\r
\r
  SystemTable->RuntimeServices->GetTime       = WinNtGetTime;\r
  SystemTable->RuntimeServices->SetTime       = WinNtSetTime;\r
  SystemTable->RuntimeServices->GetWakeupTime = WinNtGetWakeupTime;\r
  SystemTable->RuntimeServices->SetWakeupTime = WinNtSetWakeupTime;\r
\r
  Handle = NULL;\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &Handle,\r
                  &gEfiRealTimeClockArchProtocolGuid,\r
                  NULL,\r
                  NULL\r
                  );\r
  return Status;\r
}\r
\r
EFI_STATUS\r
RtcTimeFieldsValid (\r
  IN EFI_TIME *Time\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Arguments:\r
 \r
  Returns: \r
--*/\r
// TODO:    Time - add argument and description to function comment\r
// TODO:    EFI_INVALID_PARAMETER - add return value to function comment\r
// TODO:    EFI_SUCCESS - add return value to function comment\r
{\r
  if (Time->Year < 1998 ||\r
      Time->Year > 2099 ||\r
      Time->Month < 1 ||\r
      Time->Month > 12 ||\r
      (!DayValid (Time)) ||\r
      Time->Hour > 23 ||\r
      Time->Minute > 59 ||\r
      Time->Second > 59 ||\r
      Time->Nanosecond > 999999999 ||\r
      (!(Time->TimeZone == EFI_UNSPECIFIED_TIMEZONE || (Time->TimeZone >= -1440 && Time->TimeZone <= 1440))) ||\r
      (Time->Daylight & (~(EFI_TIME_ADJUST_DAYLIGHT | EFI_TIME_IN_DAYLIGHT)))\r
      ) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
BOOLEAN\r
DayValid (\r
  IN  EFI_TIME  *Time\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  Time  - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
{\r
\r
  INTN  DayOfMonth[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };\r
\r
  if (Time->Day < 1 ||\r
      Time->Day > DayOfMonth[Time->Month - 1] ||\r
      (Time->Month == 2 && (!IsLeapYear (Time) && Time->Day > 28))\r
      ) {\r
    return FALSE;\r
  }\r
\r
  return TRUE;\r
}\r
\r
BOOLEAN\r
IsLeapYear (\r
  IN EFI_TIME   *Time\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  TODO: Add function description\r
\r
Arguments:\r
\r
  Time  - TODO: add argument description\r
\r
Returns:\r
\r
  TODO: add return values\r
\r
--*/\r
{\r
  if (Time->Year % 4 == 0) {\r
    if (Time->Year % 100 == 0) {\r
      if (Time->Year % 400 == 0) {\r
        return TRUE;\r
      } else {\r
        return FALSE;\r
      }\r
    } else {\r
      return TRUE;\r
    }\r
  } else {\r
    return FALSE;\r
  }\r
}\r
Commit	Line	Data
49993bed	1	/*++\r
	2	\r
	3	Copyright (c) 2006, Intel Corporation \r
	4	All rights reserved. This program and the accompanying materials \r
	5	are licensed and made available under the terms and conditions of the BSD License \r
	6	which accompanies this distribution. The full text of the license may be found at \r
	7	http://opensource.org/licenses/bsd-license.php \r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	11	\r
	12	Module Name:\r
	13	\r
	14	RealTimeClock.c\r
	15	\r
	16	Abstract:\r
	17	\r
	18	NT Emulation Architectural Protocol Driver as defined in Tiano\r
	19	\r
	20	--*/\r
	21	\r
	22	\r
	23	\r
	24	//\r
	25	// Include common header file for this module.\r
	26	//\r
	27	#include "CommonHeader.h"\r
	28	\r
	29	BOOLEAN\r
	30	DayValid (\r
	31	IN EFI_TIME *Time\r
	32	);\r
	33	\r
	34	BOOLEAN\r
	35	IsLeapYear (\r
	36	IN EFI_TIME *Time\r
	37	);\r
	38	\r
	39	EFI_STATUS\r
	40	RtcTimeFieldsValid (\r
	41	IN EFI_TIME *Time\r
	42	);\r
	43	\r
	44	EFI_STATUS\r
	45	EFIAPI\r
	46	InitializeRealTimeClock (\r
	47	IN EFI_HANDLE ImageHandle,\r
	48	IN EFI_SYSTEM_TABLE *SystemTable\r
	49	);\r
	50	\r
	51	STATIC\r
	52	EFI_STATUS\r
	53	EFIAPI\r
	54	WinNtGetTime (\r
	55	OUT EFI_TIME *Time,\r
	56	OUT EFI_TIME_CAPABILITIES *Capabilities OPTIONAL\r
	57	)\r
	58	/*++\r
	59	\r
	60	Routine Description:\r
	61	Service routine for RealTimeClockInstance->GetTime \r
	62	\r
	63	Arguments:\r
	64	\r
65	Time - A pointer to storage that will receive a snapshot of the current time.\r
66	\r
67	Capabilities - A pointer to storage that will receive the capabilities of the real time clock\r
68	in the platform. This includes the real time clock's resolution and accuracy. \r
69	All reported device capabilities are rounded up. This is an OPTIONAL argument.\r
70	\r
71	Returns:\r
72	\r
73	EFI_SUCEESS - The underlying GetSystemTime call occurred and returned\r
74	Note that in the NT32 emulation, the GetSystemTime call has no return value\r
75	thus you will always receive a EFI_SUCCESS on this.\r
76	\r
77	--*/\r
78	// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
79	{\r
80	SYSTEMTIME SystemTime;\r
81	TIME_ZONE_INFORMATION TimeZone;\r
82	\r
83	//\r
84	// Check parameter for null pointer\r
85	//\r
86	if (Time == NULL) {\r
87	return EFI_INVALID_PARAMETER;\r
88	\r
89	}\r
90	\r
91	gWinNt->GetLocalTime (&SystemTime);\r
92	gWinNt->GetTimeZoneInformation (&TimeZone);\r
93	\r
94	Time->Year = (UINT16) SystemTime.wYear;\r
95	Time->Month = (UINT8) SystemTime.wMonth;\r
96	Time->Day = (UINT8) SystemTime.wDay;\r
97	Time->Hour = (UINT8) SystemTime.wHour;\r
98	Time->Minute = (UINT8) SystemTime.wMinute;\r
99	Time->Second = (UINT8) SystemTime.wSecond;\r
100	Time->Nanosecond = (UINT32) (SystemTime.wMilliseconds * 1000000);\r
101	Time->TimeZone = (INT16) TimeZone.Bias;\r
102	\r
103	if (Capabilities != NULL) {\r
104	Capabilities->Resolution = 1;\r
105	Capabilities->Accuracy = 50000000;\r
106	Capabilities->SetsToZero = FALSE;\r
107	}\r
108	\r
109	Time->Daylight = 0;\r
110	if (TimeZone.StandardDate.wMonth) {\r
111	Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;\r
112	}\r
113	\r
114	return EFI_SUCCESS;\r
115	}\r
116	\r
117	STATIC\r
118	EFI_STATUS\r
119	EFIAPI\r
120	WinNtSetTime (\r
121	IN EFI_TIME *Time\r
122	)\r
123	/*++\r
124	\r
125	Routine Description:\r
126	Service routine for RealTimeClockInstance->SetTime \r
127	\r
128	Arguments:\r
129	\r
130	Time - A pointer to storage containing the time and date information to\r
131	program into the real time clock.\r
132	\r
133	Returns:\r
134	\r
135	EFI_SUCEESS - The operation completed successfully.\r
136	\r
137	EFI_INVALID_PARAMETER - One of the fields in Time is out of range.\r
138	\r
139	EFI_DEVICE_ERROR - The operation could not be complete due to a device error.\r
140	\r
141	--*/\r
142	// TODO: EFI_SUCCESS - add return value to function comment\r
143	{\r
144	TIME_ZONE_INFORMATION TimeZone;\r
145	EFI_STATUS Status;\r
146	SYSTEMTIME SystemTime;\r
147	BOOL Flag;\r
148	\r
149	if (Time == NULL) {\r
150	return EFI_INVALID_PARAMETER;\r
151	}\r
152	//\r
153	// Make sure that the time fields are valid\r
154	//\r
155	Status = RtcTimeFieldsValid (Time);\r
156	if (EFI_ERROR (Status)) {\r
157	return Status;\r
158	}\r
159	//\r
160	// Set Daylight savings time information and Time Zone\r
161	//\r
162	gWinNt->GetTimeZoneInformation (&TimeZone);\r
163	TimeZone.StandardDate.wMonth = Time->Daylight;\r
164	TimeZone.Bias = Time->TimeZone;\r
165	gWinNt->SetTimeZoneInformation (&TimeZone);\r
166	\r
167	SystemTime.wYear = Time->Year;\r
168	SystemTime.wMonth = Time->Month;\r
169	SystemTime.wDay = Time->Day;\r
170	SystemTime.wHour = Time->Hour;\r
171	SystemTime.wMinute = Time->Minute;\r
172	SystemTime.wSecond = Time->Second;\r
173	SystemTime.wMilliseconds = (INT16) (Time->Nanosecond / 1000000);\r
174	\r
175	Flag = gWinNt->SetLocalTime (&SystemTime);\r
176	\r
177	if (!Flag) {\r
178	return EFI_DEVICE_ERROR;\r
179	} else {\r
180	return EFI_SUCCESS;\r
181	}\r
182	}\r
183	\r
184	STATIC\r
185	EFI_STATUS\r
186	EFIAPI\r
187	WinNtGetWakeupTime (\r
188	OUT BOOLEAN *Enabled,\r
189	OUT BOOLEAN *Pending,\r
190	OUT EFI_TIME *Time\r
191	)\r
192	/*++\r
193	\r
194	Routine Description:\r
195	Service routine for RealTimeClockInstance->GetWakeupTime\r
196	\r
197	Arguments:\r
198	This - Indicates the protocol instance structure.\r
199	\r
200	Enabled - Indicates if the alarm is currently enabled or disabled.\r
201	\r
202	Pending - Indicates if the alarm signal is pending and requires\r
203	acknowledgement.\r
204	\r
205	Time - The current alarm setting.\r
206	\r
207	Returns:\r
208	\r
209	EFI_SUCEESS - The operation completed successfully.\r
210	\r
211	EFI_DEVICE_ERROR - The operation could not be complete due to a device error.\r
212	\r
213	EFI_UNSUPPORTED - The operation is not supported on this platform.\r
214	\r
215	--*/\r
216	{\r
217	return EFI_UNSUPPORTED;\r
218	}\r
219	\r
220	STATIC\r
221	EFI_STATUS\r
222	EFIAPI\r
223	WinNtSetWakeupTime (\r
224	IN BOOLEAN Enable,\r
225	OUT EFI_TIME *Time\r
226	)\r
227	/*++\r
228	\r
229	Routine Description:\r
230	Service routine for RealTimeClockInstance->SetWakeupTime\r
231	\r
232	Arguments:\r
233	\r
234	Enabled - Enable or disable the wakeup alarm.\r
235	\r
236	Time - If enable is TRUE, the time to set the wakup alarm for.\r
237	If enable is FALSE, then this parameter is optional, and\r
238	may be NULL.\r
239	\r
240	Returns:\r
241	\r
242	EFI_SUCEESS - The operation completed successfully.\r
243	\r
244	EFI_DEVICE_ERROR - The operation could not be complete due to a device error.\r
245	\r
246	EFI_INVALID_PARAMETER - A field in Time is out of range.\r
247	\r
248	EFI_UNSUPPORTED - The operation is not supported on this platform.\r
249	\r
250	--*/\r
251	{\r
252	return EFI_UNSUPPORTED;\r
253	}\r
254	\r
255	EFI_STATUS\r
256	EFIAPI\r
257	InitializeRealTimeClock (\r
258	IN EFI_HANDLE ImageHandle,\r
259	IN EFI_SYSTEM_TABLE *SystemTable\r
260	)\r
261	/*++\r
262	\r
263	Routine Description:\r
264	Install Real Time Clock Protocol \r
265	\r
266	Arguments:\r
267	(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)\r
268	\r
269	Returns:\r
270	\r
271	EFI_SUCEESS - Real Time Clock Services are installed into the Runtime Services Table\r
272	\r
273	--*/\r
274	// TODO: ImageHandle - add argument and description to function comment\r
275	// TODO: SystemTable - add argument and description to function comment\r
276	{\r
277	EFI_STATUS Status;\r
278	EFI_HANDLE Handle;\r
279	\r
280	\r
281	SystemTable->RuntimeServices->GetTime = WinNtGetTime;\r
282	SystemTable->RuntimeServices->SetTime = WinNtSetTime;\r
283	SystemTable->RuntimeServices->GetWakeupTime = WinNtGetWakeupTime;\r
284	SystemTable->RuntimeServices->SetWakeupTime = WinNtSetWakeupTime;\r
285	\r
286	Handle = NULL;\r
287	Status = gBS->InstallMultipleProtocolInterfaces (\r
288	&Handle,\r
289	&gEfiRealTimeClockArchProtocolGuid,\r
290	NULL,\r
291	NULL\r
292	);\r
293	return Status;\r
294	}\r
295	\r
296	EFI_STATUS\r
297	RtcTimeFieldsValid (\r
298	IN EFI_TIME *Time\r
299	)\r
300	/*++\r
301	\r
302	Routine Description:\r
303	\r
304	Arguments:\r
305	\r
306	Returns: \r
307	--*/\r
308	// TODO: Time - add argument and description to function comment\r
309	// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
310	// TODO: EFI_SUCCESS - add return value to function comment\r
311	{\r
312	if (Time->Year < 1998 \|\|\r
313	Time->Year > 2099 \|\|\r
314	Time->Month < 1 \|\|\r
315	Time->Month > 12 \|\|\r
316	(!DayValid (Time)) \|\|\r
317	Time->Hour > 23 \|\|\r
318	Time->Minute > 59 \|\|\r
319	Time->Second > 59 \|\|\r
320	Time->Nanosecond > 999999999 \|\|\r
321	(!(Time->TimeZone == EFI_UNSPECIFIED_TIMEZONE \|\| (Time->TimeZone >= -1440 && Time->TimeZone <= 1440))) \|\|\r
322	(Time->Daylight & (~(EFI_TIME_ADJUST_DAYLIGHT \| EFI_TIME_IN_DAYLIGHT)))\r
323	) {\r
324	return EFI_INVALID_PARAMETER;\r
325	}\r
326	\r
327	return EFI_SUCCESS;\r
328	}\r
329	\r
330	BOOLEAN\r
331	DayValid (\r
332	IN EFI_TIME *Time\r
333	)\r
334	/*++\r
335	\r
336	Routine Description:\r
337	\r
338	TODO: Add function description\r
339	\r
340	Arguments:\r
341	\r
342	Time - TODO: add argument description\r
343	\r
344	Returns:\r
345	\r
346	TODO: add return values\r
347	\r
348	--*/\r
349	{\r
350	\r
351	INTN DayOfMonth[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };\r
352	\r
353	if (Time->Day < 1 \|\|\r
354	Time->Day > DayOfMonth[Time->Month - 1] \|\|\r
355	(Time->Month == 2 && (!IsLeapYear (Time) && Time->Day > 28))\r
356	) {\r
357	return FALSE;\r
358	}\r
359	\r
360	return TRUE;\r
361	}\r
362	\r
363	BOOLEAN\r
364	IsLeapYear (\r
365	IN EFI_TIME *Time\r
366	)\r
367	/*++\r
368	\r
369	Routine Description:\r
370	\r
371	TODO: Add function description\r
372	\r
373	Arguments:\r
374	\r
375	Time - TODO: add argument description\r
376	\r
377	Returns:\r
378	\r
379	TODO: add return values\r
380	\r
381	--*/\r
382	{\r
383	if (Time->Year % 4 == 0) {\r
384	if (Time->Year % 100 == 0) {\r
385	if (Time->Year % 400 == 0) {\r
386	return TRUE;\r
387	} else {\r
388	return FALSE;\r
389	}\r
390	} else {\r
391	return TRUE;\r
392	}\r
393	} else {\r
394	return FALSE;\r
395	}\r
396	}\r