[mirror_edk2.git] / EdkCompatibilityPkg / Foundation / Library / EdkIIGlueLib / Library / UefiLib / UefiNotTiano.c

/*++\r
\r
Copyright (c) 2004 - 2007, Intel Corporation. All rights reserved.<BR>\r
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
  UefiNotTiano.c\r
  \r
Abstract: \r
\r
  Library functions that abstract areas of conflict between Tiano an UEFI 2.0.\r
\r
  Help Port Framework/Tinao code that has conflicts with UEFI 2.0 by hiding the\r
  oldconflicts with library functions and supporting implementations of the old \r
  (R8.5/EFI 1.10) and new (EdkII/UEFI 2.0) way.\r
\r
--*/\r
\r
#include "EdkIIGlueUefi.h"\r
\r
/**\r
  An empty function to pass error checking of CreateEventEx (). \r
  \r
  This empty function ensures that EFI_EVENT_NOTIFY_SIGNAL_ALL is error\r
  checked correctly since it is now mapped into CreateEventEx() in UEFI 2.0.\r
  \r
**/\r
STATIC\r
VOID\r
EFIAPI\r
InternalEmptyFuntion (\r
  IN EFI_EVENT                Event,\r
  IN VOID                     *Context\r
  )\r
{\r
  return;\r
}\r
\r
/**\r
  Create a Legacy Boot Event.  \r
  \r
  Tiano extended the CreateEvent Type enum to add a legacy boot event type. \r
  This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was\r
  added and now it's possible to not voilate the UEFI specification by \r
  declaring a GUID for the legacy boot event class. This library supports\r
  the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to \r
  work both ways.\r
\r
  @param  LegacyBootEvent   Returns the EFI event returned from gBS->CreateEvent(Ex).\r
\r
  @retval EFI_SUCCESS       Event was created.\r
  @retval Other             Event was not created.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
GlueEfiCreateEventLegacyBoot (\r
  OUT EFI_EVENT  *LegacyBootEvent\r
  )\r
{\r
  return EfiCreateEventLegacyBootEx (\r
           EFI_TPL_CALLBACK,\r
           InternalEmptyFuntion,\r
           NULL,\r
           LegacyBootEvent\r
           );\r
}\r
\r
/**\r
  Create an EFI event in the Legacy Boot Event Group and allows\r
  the caller to specify a notification function.  \r
  \r
  This function abstracts the creation of the Legacy Boot Event.\r
  The Framework moved from a proprietary to UEFI 2.0 based mechanism.\r
  This library abstracts the caller from how this event is created to prevent\r
  to code form having to change with the version of the specification supported.\r
  If LegacyBootEvent is NULL, then ASSERT().\r
\r
  @param  NotifyTpl         The task priority level of the event.\r
  @param  NotifyFunction    The notification function to call when the event is signaled.\r
  @param  NotifyContext     The content to pass to NotifyFunction when the event is signaled.\r
  @param  LegacyBootEvent   Returns the EFI event returned from gBS->CreateEvent(Ex).\r
\r
  @retval EFI_SUCCESS       Event was created.\r
  @retval Other             Event was not created.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
EfiCreateEventLegacyBootEx (\r
  IN  EFI_TPL           NotifyTpl,\r
  IN  EFI_EVENT_NOTIFY  NotifyFunction,  OPTIONAL\r
  IN  VOID              *NotifyContext,  OPTIONAL\r
  OUT EFI_EVENT         *LegacyBootEvent\r
  )\r
{\r
  EFI_STATUS    Status;\r
\r
  ASSERT (LegacyBootEvent != NULL);\r
\r
#if (EFI_SPECIFICATION_VERSION < 0x00020000) \r
  //\r
  // prior to UEFI 2.0 use Tiano extension to EFI\r
  //\r
  Status = gBS->CreateEvent (\r
                  EFI_EVENT_SIGNAL_LEGACY_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL,\r
                  NotifyTpl,\r
                  NotifyFunction,\r
                  NotifyContext,\r
                  LegacyBootEvent\r
                  );\r
#else\r
  //\r
  // For UEFI 2.0 and the future use an Event Group\r
  //\r
  Status = gBS->CreateEventEx (\r
                  EVENT_NOTIFY_SIGNAL,\r
                  NotifyTpl,\r
                  NotifyFunction,\r
                  NotifyContext,\r
                  &gEfiEventLegacyBootGuid,\r
                  LegacyBootEvent\r
                  );\r
#endif\r
\r
  return Status;\r
}\r
\r
/**\r
  Create a Read to Boot Event.  \r
  \r
  Tiano extended the CreateEvent Type enum to add a ready to boot event type. \r
  This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was\r
  added and now it's possible to not voilate the UEFI specification and use \r
  the ready to boot event class defined in UEFI 2.0. This library supports\r
  the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to \r
  work both ways.\r
\r
  @param  LegacyBootEvent   Returns the EFI event returned from gBS->CreateEvent(Ex).\r
\r
  @retval EFI_SUCCESS       Event was created.\r
  @retval Other             Event was not created.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
GlueEfiCreateEventReadyToBoot (\r
  OUT EFI_EVENT  *ReadyToBootEvent\r
  )\r
{\r
  return EfiCreateEventReadyToBootEx (\r
           EFI_TPL_CALLBACK,\r
           InternalEmptyFuntion,\r
           NULL,\r
           ReadyToBootEvent\r
           );\r
}\r
\r
/**\r
  Create an EFI event in the Ready To Boot Event Group and allows\r
  the caller to specify a notification function.  \r
  \r
  This function abstracts the creation of the Ready to Boot Event.\r
  The Framework moved from a proprietary to UEFI 2.0 based mechanism.\r
  This library abstracts the caller from how this event is created to prevent\r
  to code form having to change with the version of the specification supported.\r
  If ReadyToBootEvent is NULL, then ASSERT().\r
\r
  @param  NotifyTpl         The task priority level of the event.\r
  @param  NotifyFunction    The notification function to call when the event is signaled.\r
  @param  NotifyContext     The content to pass to NotifyFunction when the event is signaled.\r
  @param  LegacyBootEvent   Returns the EFI event returned from gBS->CreateEvent(Ex).\r
\r
  @retval EFI_SUCCESS       Event was created.\r
  @retval Other             Event was not created.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
EfiCreateEventReadyToBootEx (\r
  IN  EFI_TPL           NotifyTpl,\r
  IN  EFI_EVENT_NOTIFY  NotifyFunction,  OPTIONAL\r
  IN  VOID              *NotifyContext,  OPTIONAL\r
  OUT EFI_EVENT         *ReadyToBootEvent\r
  )\r
{\r
  EFI_STATUS    Status;\r
\r
  ASSERT (ReadyToBootEvent != NULL);\r
\r
#if (EFI_SPECIFICATION_VERSION < 0x00020000) \r
  //\r
  // prior to UEFI 2.0 use Tiano extension to EFI\r
  //\r
  Status = gBS->CreateEvent (\r
                  EFI_EVENT_SIGNAL_READY_TO_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL,\r
                  NotifyTpl,\r
                  NotifyFunction,\r
                  NotifyContext,\r
                  ReadyToBootEvent\r
                  );\r
#else\r
  //\r
  // For UEFI 2.0 and the future use an Event Group\r
  //\r
  Status = gBS->CreateEventEx (\r
                  EVENT_NOTIFY_SIGNAL,\r
                  NotifyTpl,\r
                  NotifyFunction,\r
                  NotifyContext,\r
                  &gEfiEventReadyToBootGuid,\r
                  ReadyToBootEvent\r
                  );\r
#endif\r
\r
  return Status;\r
}\r
\r
\r
/**\r
  Signal a Ready to Boot Event.  \r
  \r
  Create a Ready to Boot Event. Signal it and close it. This causes other \r
  events of the same event group to be signaled in other modules. \r
\r
**/\r
VOID\r
EFIAPI\r
EfiSignalEventReadyToBoot (\r
  VOID\r
  )\r
{\r
  EFI_STATUS    Status;\r
  EFI_EVENT     ReadyToBootEvent;\r
\r
  Status = EfiCreateEventReadyToBoot (&ReadyToBootEvent);\r
  if (!EFI_ERROR (Status)) {\r
    gBS->SignalEvent (ReadyToBootEvent);\r
    gBS->CloseEvent (ReadyToBootEvent);\r
  }\r
}\r
\r
/**\r
  Signal a Legacy Boot Event.  \r
  \r
  Create a legacy Boot Event. Signal it and close it. This causes other \r
  events of the same event group to be signaled in other modules. \r
\r
**/\r
VOID\r
EFIAPI\r
EfiSignalEventLegacyBoot (\r
  VOID\r
  )\r
{\r
  EFI_STATUS    Status;\r
  EFI_EVENT     LegacyBootEvent;\r
\r
  Status = EfiCreateEventLegacyBoot (&LegacyBootEvent);\r
  if (!EFI_ERROR (Status)) {\r
    gBS->SignalEvent (LegacyBootEvent);\r
    gBS->CloseEvent (LegacyBootEvent);\r
  }\r
}\r
\r
\r
/**\r
  Check to see if the Firmware Volume (FV) Media Device Path is valid \r
  \r
  Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum\r
  so as we move to UEFI 2.0 support we must use a mechanism that conforms with\r
  the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed \r
  device path is defined for PIWG extensions of device path. If the code \r
  is compiled to conform with the UEFI 2.0 specification use the new device path\r
  else use the old form for backwards compatability. The return value to this\r
  function points to a location in FvDevicePathNode and it does not allocate\r
  new memory for the GUID pointer that is returned.\r
\r
  @param  FvDevicePathNode  Pointer to FV device path to check.\r
\r
  @retval NULL              FvDevicePathNode is not valid.\r
  @retval Other             FvDevicePathNode is valid and pointer to NameGuid was returned.\r
\r
**/\r
EFI_GUID *\r
EFIAPI\r
GlueEfiGetNameGuidFromFwVolDevicePathNode (\r
  IN CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH  *FvDevicePathNode\r
  )\r
{\r
  ASSERT (FvDevicePathNode != NULL);\r
\r
  //\r
  // EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10. \r
  // In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with\r
  // EFI 1.10 and UEFI 2.10.\r
  //\r
  if (DevicePathType (&FvDevicePathNode->Header) == MEDIA_DEVICE_PATH &&\r
      DevicePathSubType (&FvDevicePathNode->Header) == MEDIA_FV_FILEPATH_DP) {\r
    return (EFI_GUID *) &FvDevicePathNode->NameGuid;\r
  }\r
\r
  return NULL;\r
}\r
\r
\r
/**\r
  Initialize a Firmware Volume (FV) Media Device Path node.\r
  \r
  Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum\r
  so as we move to UEFI 2.0 support we must use a mechanism that conforms with\r
  the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed \r
  device path is defined for PIWG extensions of device path. If the code \r
  is compiled to conform with the UEFI 2.0 specification use the new device path\r
  else use the old form for backwards compatability.\r
\r
  @param  FvDevicePathNode  Pointer to a FV device path node to initialize\r
  @param  NameGuid          FV file name to use in FvDevicePathNode\r
\r
**/\r
VOID\r
EFIAPI\r
GlueEfiInitializeFwVolDevicepathNode (\r
  IN OUT MEDIA_FW_VOL_FILEPATH_DEVICE_PATH  *FvDevicePathNode,\r
  IN CONST EFI_GUID                         *NameGuid\r
  )\r
{\r
  ASSERT (FvDevicePathNode  != NULL);\r
  ASSERT (NameGuid          != NULL);\r
\r
  //\r
  // EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10. \r
  // In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with\r
  // EFI 1.10 and UEFI 2.10.\r
  //\r
  FvDevicePathNode->Header.Type     = MEDIA_DEVICE_PATH;\r
  FvDevicePathNode->Header.SubType  = MEDIA_FV_FILEPATH_DP;\r
  SetDevicePathNodeLength (&FvDevicePathNode->Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH));\r
  \r
  CopyGuid (&FvDevicePathNode->NameGuid, NameGuid);\r
\r
}\r
\r
Commit	Line	Data
3eb9473e	1	/*++\r
3eb9473e	2	\r
2c7e5c2f HT	3	Copyright (c) 2004 - 2007, Intel Corporation. All rights reserved.<BR>\r
2c7e5c2f HT	4	This program and the accompanying materials \r
3eb9473e	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	UefiNotTiano.c\r
	15	\r
	16	Abstract: \r
	17	\r
	18	Library functions that abstract areas of conflict between Tiano an UEFI 2.0.\r
	19	\r
	20	Help Port Framework/Tinao code that has conflicts with UEFI 2.0 by hiding the\r
	21	oldconflicts with library functions and supporting implementations of the old \r
	22	(R8.5/EFI 1.10) and new (EdkII/UEFI 2.0) way.\r
	23	\r
	24	--*/\r
	25	\r
	26	#include "EdkIIGlueUefi.h"\r
	27	\r
	28	/**\r
	29	An empty function to pass error checking of CreateEventEx (). \r
	30	\r
	31	This empty function ensures that EFI_EVENT_NOTIFY_SIGNAL_ALL is error\r
	32	checked correctly since it is now mapped into CreateEventEx() in UEFI 2.0.\r
	33	\r
	34	**/\r
	35	STATIC\r
	36	VOID\r
	37	EFIAPI\r
	38	InternalEmptyFuntion (\r
	39	IN EFI_EVENT Event,\r
	40	IN VOID *Context\r
	41	)\r
	42	{\r
	43	return;\r
	44	}\r
	45	\r
	46	/**\r
	47	Create a Legacy Boot Event. \r
	48	\r
	49	Tiano extended the CreateEvent Type enum to add a legacy boot event type. \r
	50	This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was\r
	51	added and now it's possible to not voilate the UEFI specification by \r
	52	declaring a GUID for the legacy boot event class. This library supports\r
	53	the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to \r
	54	work both ways.\r
	55	\r
	56	@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).\r
	57	\r
	58	@retval EFI_SUCCESS Event was created.\r
	59	@retval Other Event was not created.\r
	60	\r
	61	**/\r
	62	EFI_STATUS\r
	63	EFIAPI\r
	64	GlueEfiCreateEventLegacyBoot (\r
	65	OUT EFI_EVENT *LegacyBootEvent\r
	66	)\r
	67	{\r
	68	return EfiCreateEventLegacyBootEx (\r
69	EFI_TPL_CALLBACK,\r
70	InternalEmptyFuntion,\r
71	NULL,\r
72	LegacyBootEvent\r
73	);\r
74	}\r
75	\r
76	/**\r
77	Create an EFI event in the Legacy Boot Event Group and allows\r
78	the caller to specify a notification function. \r
79	\r
80	This function abstracts the creation of the Legacy Boot Event.\r
81	The Framework moved from a proprietary to UEFI 2.0 based mechanism.\r
82	This library abstracts the caller from how this event is created to prevent\r
83	to code form having to change with the version of the specification supported.\r
84	If LegacyBootEvent is NULL, then ASSERT().\r
85	\r
86	@param NotifyTpl The task priority level of the event.\r
87	@param NotifyFunction The notification function to call when the event is signaled.\r
88	@param NotifyContext The content to pass to NotifyFunction when the event is signaled.\r
89	@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).\r
90	\r
91	@retval EFI_SUCCESS Event was created.\r
92	@retval Other Event was not created.\r
93	\r
94	**/\r
95	EFI_STATUS\r
96	EFIAPI\r
97	EfiCreateEventLegacyBootEx (\r
98	IN EFI_TPL NotifyTpl,\r
99	IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL\r
100	IN VOID *NotifyContext, OPTIONAL\r
101	OUT EFI_EVENT *LegacyBootEvent\r
102	)\r
103	{\r
104	EFI_STATUS Status;\r
105	\r
106	ASSERT (LegacyBootEvent != NULL);\r
107	\r
108	#if (EFI_SPECIFICATION_VERSION < 0x00020000) \r
109	//\r
110	// prior to UEFI 2.0 use Tiano extension to EFI\r
111	//\r
112	Status = gBS->CreateEvent (\r
113	EFI_EVENT_SIGNAL_LEGACY_BOOT \| EFI_EVENT_NOTIFY_SIGNAL_ALL,\r
114	NotifyTpl,\r
115	NotifyFunction,\r
116	NotifyContext,\r
117	LegacyBootEvent\r
118	);\r
119	#else\r
120	//\r
121	// For UEFI 2.0 and the future use an Event Group\r
122	//\r
123	Status = gBS->CreateEventEx (\r
124	EVENT_NOTIFY_SIGNAL,\r
125	NotifyTpl,\r
126	NotifyFunction,\r
127	NotifyContext,\r
128	&gEfiEventLegacyBootGuid,\r
129	LegacyBootEvent\r
130	);\r
131	#endif\r
132	\r
133	return Status;\r
134	}\r
135	\r
136	/**\r
137	Create a Read to Boot Event. \r
138	\r
139	Tiano extended the CreateEvent Type enum to add a ready to boot event type. \r
140	This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was\r
141	added and now it's possible to not voilate the UEFI specification and use \r
142	the ready to boot event class defined in UEFI 2.0. This library supports\r
143	the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to \r
144	work both ways.\r
145	\r
146	@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).\r
147	\r
148	@retval EFI_SUCCESS Event was created.\r
149	@retval Other Event was not created.\r
150	\r
151	**/\r
152	EFI_STATUS\r
153	EFIAPI\r
154	GlueEfiCreateEventReadyToBoot (\r
155	OUT EFI_EVENT *ReadyToBootEvent\r
156	)\r
157	{\r
158	return EfiCreateEventReadyToBootEx (\r
159	EFI_TPL_CALLBACK,\r
160	InternalEmptyFuntion,\r
161	NULL,\r
162	ReadyToBootEvent\r
163	);\r
164	}\r
165	\r
166	/**\r
167	Create an EFI event in the Ready To Boot Event Group and allows\r
168	the caller to specify a notification function. \r
169	\r
170	This function abstracts the creation of the Ready to Boot Event.\r
171	The Framework moved from a proprietary to UEFI 2.0 based mechanism.\r
172	This library abstracts the caller from how this event is created to prevent\r
173	to code form having to change with the version of the specification supported.\r
174	If ReadyToBootEvent is NULL, then ASSERT().\r
175	\r
176	@param NotifyTpl The task priority level of the event.\r
177	@param NotifyFunction The notification function to call when the event is signaled.\r
178	@param NotifyContext The content to pass to NotifyFunction when the event is signaled.\r
179	@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).\r
180	\r
181	@retval EFI_SUCCESS Event was created.\r
182	@retval Other Event was not created.\r
183	\r
184	**/\r
185	EFI_STATUS\r
186	EFIAPI\r
187	EfiCreateEventReadyToBootEx (\r
188	IN EFI_TPL NotifyTpl,\r
189	IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL\r
190	IN VOID *NotifyContext, OPTIONAL\r
191	OUT EFI_EVENT *ReadyToBootEvent\r
192	)\r
193	{\r
194	EFI_STATUS Status;\r
195	\r
196	ASSERT (ReadyToBootEvent != NULL);\r
197	\r
198	#if (EFI_SPECIFICATION_VERSION < 0x00020000) \r
199	//\r
200	// prior to UEFI 2.0 use Tiano extension to EFI\r
201	//\r
202	Status = gBS->CreateEvent (\r
203	EFI_EVENT_SIGNAL_READY_TO_BOOT \| EFI_EVENT_NOTIFY_SIGNAL_ALL,\r
204	NotifyTpl,\r
205	NotifyFunction,\r
206	NotifyContext,\r
207	ReadyToBootEvent\r
208	);\r
209	#else\r
210	//\r
211	// For UEFI 2.0 and the future use an Event Group\r
212	//\r
213	Status = gBS->CreateEventEx (\r
214	EVENT_NOTIFY_SIGNAL,\r
215	NotifyTpl,\r
216	NotifyFunction,\r
217	NotifyContext,\r
218	&gEfiEventReadyToBootGuid,\r
219	ReadyToBootEvent\r
220	);\r
221	#endif\r
222	\r
223	return Status;\r
224	}\r
225	\r
226	\r
227	/**\r
228	Signal a Ready to Boot Event. \r
229	\r
230	Create a Ready to Boot Event. Signal it and close it. This causes other \r
231	events of the same event group to be signaled in other modules. \r
232	\r
233	**/\r
234	VOID\r
235	EFIAPI\r
236	EfiSignalEventReadyToBoot (\r
237	VOID\r
238	)\r
239	{\r
240	EFI_STATUS Status;\r
241	EFI_EVENT ReadyToBootEvent;\r
242	\r
243	Status = EfiCreateEventReadyToBoot (&ReadyToBootEvent);\r
244	if (!EFI_ERROR (Status)) {\r
245	gBS->SignalEvent (ReadyToBootEvent);\r
246	gBS->CloseEvent (ReadyToBootEvent);\r
247	}\r
248	}\r
249	\r
250	/**\r
251	Signal a Legacy Boot Event. \r
252	\r
253	Create a legacy Boot Event. Signal it and close it. This causes other \r
254	events of the same event group to be signaled in other modules. \r
255	\r
256	**/\r
257	VOID\r
258	EFIAPI\r
259	EfiSignalEventLegacyBoot (\r
260	VOID\r
261	)\r
262	{\r
263	EFI_STATUS Status;\r
264	EFI_EVENT LegacyBootEvent;\r
265	\r
266	Status = EfiCreateEventLegacyBoot (&LegacyBootEvent);\r
267	if (!EFI_ERROR (Status)) {\r
268	gBS->SignalEvent (LegacyBootEvent);\r
269	gBS->CloseEvent (LegacyBootEvent);\r
270	}\r
271	}\r
272	\r
273	\r
274	/**\r
275	Check to see if the Firmware Volume (FV) Media Device Path is valid \r
276	\r
277	Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum\r
278	so as we move to UEFI 2.0 support we must use a mechanism that conforms with\r
279	the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed \r
280	device path is defined for PIWG extensions of device path. If the code \r
281	is compiled to conform with the UEFI 2.0 specification use the new device path\r
282	else use the old form for backwards compatability. The return value to this\r
283	function points to a location in FvDevicePathNode and it does not allocate\r
284	new memory for the GUID pointer that is returned.\r
285	\r
286	@param FvDevicePathNode Pointer to FV device path to check.\r
287	\r
288	@retval NULL FvDevicePathNode is not valid.\r
289	@retval Other FvDevicePathNode is valid and pointer to NameGuid was returned.\r
290	\r
291	**/\r
292	EFI_GUID *\r
293	EFIAPI\r
294	GlueEfiGetNameGuidFromFwVolDevicePathNode (\r
295	IN CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode\r
296	)\r
297	{\r
298	ASSERT (FvDevicePathNode != NULL);\r
299	\r
3eb9473e	300	//\r
6f4ee195	301	// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10. \r
	302	// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with\r
	303	// EFI 1.10 and UEFI 2.10.\r
3eb9473e	304	//\r
	305	if (DevicePathType (&FvDevicePathNode->Header) == MEDIA_DEVICE_PATH &&\r
	306	DevicePathSubType (&FvDevicePathNode->Header) == MEDIA_FV_FILEPATH_DP) {\r
	307	return (EFI_GUID *) &FvDevicePathNode->NameGuid;\r
	308	}\r
	309	\r
3eb9473e	310	return NULL;\r
	311	}\r
	312	\r
	313	\r
	314	/**\r
	315	Initialize a Firmware Volume (FV) Media Device Path node.\r
	316	\r
	317	Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum\r
	318	so as we move to UEFI 2.0 support we must use a mechanism that conforms with\r
	319	the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed \r
	320	device path is defined for PIWG extensions of device path. If the code \r
	321	is compiled to conform with the UEFI 2.0 specification use the new device path\r
	322	else use the old form for backwards compatability.\r
	323	\r
	324	@param FvDevicePathNode Pointer to a FV device path node to initialize\r
	325	@param NameGuid FV file name to use in FvDevicePathNode\r
	326	\r
	327	**/\r
	328	VOID\r
	329	EFIAPI\r
	330	GlueEfiInitializeFwVolDevicepathNode (\r
	331	IN OUT MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode,\r
	332	IN CONST EFI_GUID *NameGuid\r
	333	)\r
	334	{\r
	335	ASSERT (FvDevicePathNode != NULL);\r
	336	ASSERT (NameGuid != NULL);\r
	337	\r
3eb9473e	338	//\r
6f4ee195	339	// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10. \r
	340	// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with\r
	341	// EFI 1.10 and UEFI 2.10.\r
3eb9473e	342	//\r
	343	FvDevicePathNode->Header.Type = MEDIA_DEVICE_PATH;\r
	344	FvDevicePathNode->Header.SubType = MEDIA_FV_FILEPATH_DP;\r
	345	SetDevicePathNodeLength (&FvDevicePathNode->Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH));\r
	346	\r
3eb9473e	347	CopyGuid (&FvDevicePathNode->NameGuid, NameGuid);\r
	348	\r
	349	}\r
	350	\r