X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FLibrary%2FUefiLib%2FUefiLib.c;h=5fe7999073270bd12958edbfbf0cdb98e0567b19;hb=fd7a76af08f21401713f4ca595c0bdde49f6f388;hp=e8883b49f862b1414ca24f213a69bffc99298172;hpb=13c84604475a77b7b90e79eddc77e88b7a01f504;p=mirror_edk2.git
diff --git a/MdePkg/Library/UefiLib/UefiLib.c b/MdePkg/Library/UefiLib/UefiLib.c
index e8883b49f8..5fe7999073 100644
--- a/MdePkg/Library/UefiLib/UefiLib.c
+++ b/MdePkg/Library/UefiLib/UefiLib.c
@@ -1,19 +1,24 @@
/** @file
Mde UEFI library functions.
- Copyright (c) 2006, Intel Corporation
- All rights reserved. This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
+ Copyright (c) 2006 - 2007, Intel Corporation
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name: UefiLib.c
**/
+//
+// Include common header file for this module.
+//
+#include "CommonHeader.h"
+
/**
Compare whether two names of languages are identical.
@@ -24,19 +29,26 @@
@retval FALSE Language 1 and language 2 are not the same.
**/
+STATIC
BOOLEAN
CompareIso639LanguageCode (
IN CONST CHAR8 *Language1,
IN CONST CHAR8 *Language2
)
{
- return (BOOLEAN) (ReadUnaligned24 ((CONST UINT32 *) Language1) == ReadUnaligned24 ((CONST UINT32 *) Language2));
+ UINT32 Name1;
+ UINT32 Name2;
+
+ Name1 = ReadUnaligned24 ((CONST UINT32 *) Language1);
+ Name2 = ReadUnaligned24 ((CONST UINT32 *) Language2);
+
+ return (BOOLEAN) (Name1 == Name2);
}
/**
- This function searches the list of configuration tables stored in the EFI System
- Table for a table with a GUID that matches TableGuid. If a match is found,
- then a pointer to the configuration table is returned in Table, and EFI_SUCCESS
+ This function searches the list of configuration tables stored in the EFI System
+ Table for a table with a GUID that matches TableGuid. If a match is found,
+ then a pointer to the configuration table is returned in Table, and EFI_SUCCESS
is returned. If a matching GUID is not found, then EFI_NOT_FOUND is returned.
@param TableGuid Pointer to table's GUID type..
@@ -48,7 +60,7 @@ CompareIso639LanguageCode (
**/
EFI_STATUS
EFIAPI
-EfiGetSystemConfigurationTable (
+EfiGetSystemConfigurationTable (
IN EFI_GUID *TableGuid,
OUT VOID **Table
)
@@ -72,9 +84,9 @@ EfiGetSystemConfigurationTable (
}
/**
- This function causes the notification function to be executed for every protocol
- of type ProtocolGuid instance that exists in the system when this function is
- invoked. In addition, every time a protocol of type ProtocolGuid instance is
+ This function causes the notification function to be executed for every protocol
+ of type ProtocolGuid instance that exists in the system when this function is
+ invoked. In addition, every time a protocol of type ProtocolGuid instance is
installed or reinstalled, the notification function is also executed.
@param ProtocolGuid Supplies GUID of the protocol upon whose installation the event is fired.
@@ -83,7 +95,7 @@ EfiGetSystemConfigurationTable (
@param NotifyContext The context parameter to pass to NotifyFunction.
@param Registration A pointer to a memory location to receive the registration value.
- @return The notification event that was created.
+ @return The notification event that was created.
**/
EFI_EVENT
@@ -104,7 +116,7 @@ EfiCreateProtocolNotifyEvent(
//
Status = gBS->CreateEvent (
- EFI_EVENT_NOTIFY_SIGNAL,
+ EVT_NOTIFY_SIGNAL,
NotifyTpl,
NotifyFunction,
NotifyContext,
@@ -135,13 +147,13 @@ EfiCreateProtocolNotifyEvent(
/**
This function creates an event using NotifyTpl, NoifyFunction, and NotifyContext.
- This event is signaled with EfiNamedEventSignal(). This provide the ability for
+ This event is signaled with EfiNamedEventSignal(). This provide the ability for
one or more listeners on the same event named by the GUID specified by Name.
@param Name Supplies GUID name of the event.
@param NotifyTpl Supplies the task priority level of the event notifications.
@param NotifyFunction Supplies the function to notify when the event is signaled.
- @param NotifyContext The context parameter to pass to NotifyFunction.
+ @param NotifyContext The context parameter to pass to NotifyFunction.
@param Registration A pointer to a memory location to receive the registration value.
@retval EFI_SUCCESS A named event was created.
@@ -166,7 +178,7 @@ EfiNamedEventListen (
// Create event
//
Status = gBS->CreateEvent (
- EFI_EVENT_NOTIFY_SIGNAL,
+ EVT_NOTIFY_SIGNAL,
NotifyTpl,
NotifyFunction,
(VOID *) NotifyContext,
@@ -199,7 +211,7 @@ EfiNamedEventListen (
}
/**
- This function signals the named event specified by Name. The named event must
+ This function signals the named event specified by Name. The named event must
have been created with EfiNamedEventListen().
@param Name Supplies GUID name of the event.
@@ -236,10 +248,38 @@ EfiNamedEventSignal (
return EFI_SUCCESS;
}
+/**
+ Returns the current TPL.
+
+ This function returns the current TPL. There is no EFI service to directly
+ retrieve the current TPL. Instead, the RaiseTPL() function is used to raise
+ the TPL to TPL_HIGH_LEVEL. This will return the current TPL. The TPL level
+ can then immediately be restored back to the current TPL level with a call
+ to RestoreTPL().
+
+ @param VOID
+
+ @retvale EFI_TPL The current TPL.
+
+**/
+EFI_TPL
+EFIAPI
+EfiGetCurrentTpl (
+ VOID
+ )
+{
+ EFI_TPL Tpl;
+
+ Tpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
+ gBS->RestoreTPL (Tpl);
+
+ return Tpl;
+}
+
/**
- This function initializes a basic mutual exclusion lock to the released state
- and returns the lock. Each lock provides mutual exclusion access at its task
+ This function initializes a basic mutual exclusion lock to the released state
+ and returns the lock. Each lock provides mutual exclusion access at its task
priority level. Since there is no preemption or multiprocessor support in EFI,
acquiring the lock only consists of raising to the locks TPL.
@@ -257,17 +297,17 @@ EfiInitializeLock (
)
{
ASSERT (Lock != NULL);
- ASSERT (Priority <= EFI_TPL_HIGH_LEVEL);
+ ASSERT (Priority <= TPL_HIGH_LEVEL);
Lock->Tpl = Priority;
- Lock->OwnerTpl = EFI_TPL_APPLICATION;
+ Lock->OwnerTpl = TPL_APPLICATION;
Lock->Lock = EfiLockReleased ;
return Lock;
}
/**
- This function raises the system's current task priority level to the task
- priority level of the mutual exclusion lock. Then, it places the lock in the
+ This function raises the system's current task priority level to the task
+ priority level of the mutual exclusion lock. Then, it places the lock in the
acquired state.
@param Priority The task priority level of the lock.
@@ -287,8 +327,8 @@ EfiAcquireLock (
}
/**
- This function raises the system's current task priority level to the task
- priority level of the mutual exclusion lock. Then, it attempts to place the
+ This function raises the system's current task priority level to the task
+ priority level of the mutual exclusion lock. Then, it attempts to place the
lock in the acquired state.
@param Lock A pointer to the lock to acquire.
@@ -322,8 +362,8 @@ EfiAcquireLockOrFail (
}
/**
- This function transitions a mutual exclusion lock from the acquired state to
- the released state, and restores the system's task priority level to its
+ This function transitions a mutual exclusion lock from the acquired state to
+ the released state, and restores the system's task priority level to its
previous level.
@param Lock A pointer to the lock to release.
@@ -341,38 +381,163 @@ EfiReleaseLock (
ASSERT (Lock->Lock == EfiLockAcquired);
Tpl = Lock->OwnerTpl;
-
+
Lock->Lock = EfiLockReleased;
gBS->RestoreTPL (Tpl);
}
/**
- This function looks up a Unicode string in UnicodeStringTable. If Language is
+ Tests whether a controller handle is being managed by a specific driver.
+
+ This function tests whether the driver specified by DriverBindingHandle is
+ currently managing the controller specified by ControllerHandle. This test
+ is performed by evaluating if the the protocol specified by ProtocolGuid is
+ present on ControllerHandle and is was opened by DriverBindingHandle with an
+ attribute of EFI_OPEN_PROTOCOL_BY_DRIVER.
+ If ProtocolGuid is NULL, then ASSERT().
+
+ @param ControllerHandle A handle for a controller to test.
+ @param DriverBindingHandle Specifies the driver binding handle for the
+ driver.
+ @param ProtocolGuid Specifies the protocol that the driver specified
+ by DriverBindingHandle opens in its Start()
+ function.
+
+ @retval EFI_SUCCESS ControllerHandle is managed by the driver
+ specifed by DriverBindingHandle.
+ @retval EFI_UNSUPPORTED ControllerHandle is not managed by the driver
+ specifed by DriverBindingHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiTestManagedDevice (
+ IN CONST EFI_HANDLE ControllerHandle,
+ IN CONST EFI_HANDLE DriverBindingHandle,
+ IN CONST EFI_GUID *ProtocolGuid
+ )
+{
+ EFI_STATUS Status;
+ VOID *ManagedInterface;
+
+ ASSERT (ProtocolGuid != NULL);
+
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ &ManagedInterface,
+ DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (!EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ DriverBindingHandle,
+ ControllerHandle
+ );
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Status != EFI_ALREADY_STARTED) {
+ return EFI_UNSUPPORTED;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Tests whether a child handle is a child device of the controller.
+
+ This function tests whether ChildHandle is one of the children of
+ ControllerHandle. This test is performed by checking to see if the protocol
+ specified by ProtocolGuid is present on ControllerHandle and opened by
+ ChildHandle with an attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
+ If ProtocolGuid is NULL, then ASSERT().
+
+ @param ControllerHandle A handle for a (parent) controller to test.
+ @param ChildHandle A child handle to test.
+ @param ConsumsedGuid Supplies the protocol that the child controller
+ opens on its parent controller.
+
+ @retval EFI_SUCCESS ChildHandle is a child of the ControllerHandle.
+ @retval EFI_UNSUPPORTED ChildHandle is not a child of the
+ ControllerHandle.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiTestChildHandle (
+ IN CONST EFI_HANDLE ControllerHandle,
+ IN CONST EFI_HANDLE ChildHandle,
+ IN CONST EFI_GUID *ProtocolGuid
+ )
+{
+ EFI_STATUS Status;
+ EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;
+ UINTN EntryCount;
+ UINTN Index;
+
+ ASSERT (ProtocolGuid != NULL);
+
+ //
+ // Retrieve the list of agents that are consuming the specific protocol
+ // on ControllerHandle.
+ //
+ Status = gBS->OpenProtocolInformation (
+ ControllerHandle,
+ (EFI_GUID *) ProtocolGuid,
+ &OpenInfoBuffer,
+ &EntryCount
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Inspect if ChildHandle is one of the agents.
+ //
+ Status = EFI_UNSUPPORTED;
+ for (Index = 0; Index < EntryCount; Index++) {
+ if ((OpenInfoBuffer[Index].ControllerHandle == ChildHandle) &&
+ (OpenInfoBuffer[Index].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
+ Status = EFI_SUCCESS;
+ break;
+ }
+ }
+
+ FreePool (OpenInfoBuffer);
+ return Status;
+}
+
+/**
+ This function looks up a Unicode string in UnicodeStringTable. If Language is
a member of SupportedLanguages and a Unicode string is found in UnicodeStringTable
- that matches the language code specified by Language, then it is returned in
+ that matches the language code specified by Language, then it is returned in
UnicodeString.
- @param Language A pointer to the ISO 639-2 language code for the
+ @param Language A pointer to the ISO 639-2 language code for the
Unicode string to look up and return.
- @param SupportedLanguages A pointer to the set of ISO 639-2 language codes
- that the Unicode string table supports. Language
+ @param SupportedLanguages A pointer to the set of ISO 639-2 language codes
+ that the Unicode string table supports. Language
must be a member of this set.
@param UnicodeStringTable A pointer to the table of Unicode strings.
@param UnicodeString A pointer to the Unicode string from UnicodeStringTable
that matches the language specified by Language.
- @retval EFI_SUCCESS The Unicode string that matches the language
+ @retval EFI_SUCCESS The Unicode string that matches the language
specified by Language was found
- in the table of Unicoide strings UnicodeStringTable,
+ in the table of Unicoide strings UnicodeStringTable,
and it was returned in UnicodeString.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER UnicodeString is NULL.
@retval EFI_UNSUPPORTED SupportedLanguages is NULL.
@retval EFI_UNSUPPORTED UnicodeStringTable is NULL.
- @retval EFI_UNSUPPORTED The language specified by Language is not a
+ @retval EFI_UNSUPPORTED The language specified by Language is not a
member of SupportedLanguages.
- @retval EFI_UNSUPPORTED The language specified by Language is not
+ @retval EFI_UNSUPPORTED The language specified by Language is not
supported by UnicodeStringTable.
**/
@@ -433,13 +598,13 @@ LookupUnicodeString (
/**
This function adds a Unicode string to UnicodeStringTable.
- If Language is a member of SupportedLanguages then UnicodeString is added to
- UnicodeStringTable. New buffers are allocated for both Language and
- UnicodeString. The contents of Language and UnicodeString are copied into
- these new buffers. These buffers are automatically freed when
+ If Language is a member of SupportedLanguages then UnicodeString is added to
+ UnicodeStringTable. New buffers are allocated for both Language and
+ UnicodeString. The contents of Language and UnicodeString are copied into
+ these new buffers. These buffers are automatically freed when
FreeUnicodeStringTable() is called.
- @param Language A pointer to the ISO 639-2 language code for the Unicode
+ @param Language A pointer to the ISO 639-2 language code for the Unicode
string to add.
@param SupportedLanguages A pointer to the set of ISO 639-2 language codes
that the Unicode string table supports.
@@ -447,19 +612,19 @@ LookupUnicodeString (
@param UnicodeStringTable A pointer to the table of Unicode strings.
@param UnicodeString A pointer to the Unicode string to add.
- @retval EFI_SUCCESS The Unicode string that matches the language
- specified by Language was found in the table of
- Unicode strings UnicodeStringTable, and it was
+ @retval EFI_SUCCESS The Unicode string that matches the language
+ specified by Language was found in the table of
+ Unicode strings UnicodeStringTable, and it was
returned in UnicodeString.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER UnicodeString is NULL.
@retval EFI_INVALID_PARAMETER UnicodeString is an empty string.
@retval EFI_UNSUPPORTED SupportedLanguages is NULL.
- @retval EFI_ALREADY_STARTED A Unicode string with language Language is
+ @retval EFI_ALREADY_STARTED A Unicode string with language Language is
already present in UnicodeStringTable.
- @retval EFI_OUT_OF_RESOURCES There is not enough memory to add another
+ @retval EFI_OUT_OF_RESOURCES There is not enough memory to add another
Unicode string to UnicodeStringTable.
- @retval EFI_UNSUPPORTED The language specified by Language is not a
+ @retval EFI_UNSUPPORTED The language specified by Language is not a
member of SupportedLanguages.
**/
@@ -600,7 +765,7 @@ AddUnicodeString (
/**
This function frees the table of Unicode strings in UnicodeStringTable.
If UnicodeStringTable is NULL, then EFI_SUCCESS is returned.
- Otherwise, each language code, and each Unicode string in the Unicode string
+ Otherwise, each language code, and each Unicode string in the Unicode string
table are freed, and EFI_SUCCESS is returned.
@param UnicodeStringTable A pointer to the table of Unicode strings.
@@ -648,3 +813,74 @@ FreeUnicodeStringTable (
return EFI_SUCCESS;
}
+
+/**
+ Intialize a driver by installing the Driver Binding Protocol onto the
+ driver's DriverBindingHandle. This is typically the same as the driver's
+ ImageHandle, but it can be different if the driver produces multiple
+ DriverBinding Protocols. This function also initializes the EFI Driver
+ Library that initializes the global variables gST, gBS, gRT.
+
+ @param ImageHandle The image handle of the driver
+ @param SystemTable The EFI System Table that was passed to the driver's entry point
+ @param DriverBinding A Driver Binding Protocol instance that this driver is producing
+ @param DriverBindingHandle The handle that DriverBinding is to be installe onto. If this
+ parameter is NULL, then a new handle is created.
+
+ @retval EFI_SUCCESS DriverBinding is installed onto DriverBindingHandle
+ @retval Other Status from gBS->InstallProtocolInterface()
+
+**/
+EFI_STATUS
+EfiLibInstallDriverBinding (
+ IN const EFI_HANDLE ImageHandle,
+ IN const EFI_SYSTEM_TABLE *SystemTable,
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
+ IN EFI_HANDLE DriverBindingHandle
+ )
+{
+ //
+ // bugbug:Need to implement ...
+ //
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Intialize a driver by installing the Driver Binding Protocol onto the
+ driver's DriverBindingHandle. This is typically the same as the driver's
+ ImageHandle, but it can be different if the driver produces multiple
+ DriverBinding Protocols. This function also initializes the EFI Driver
+ Library that initializes the global variables gST, gBS, gRT.
+
+ @ImageHandle The image handle of the driver
+ @SystemTable The EFI System Table that was passed to the driver's entry point
+ @DriverBinding A Driver Binding Protocol instance that this driver is producing
+ @DriverBindingHandle The handle that DriverBinding is to be installe onto. If this
+ parameter is NULL, then a new handle is created.
+ @ComponentName A Component Name Protocol instance that this driver is producing
+ @DriverConfiguration A Driver Configuration Protocol instance that this driver is producing
+ @DriverDiagnostics A Driver Diagnostics Protocol instance that this driver is producing
+
+ @retval EFI_SUCCESS DriverBinding is installed onto DriverBindingHandle
+ @retval Other Status from gBS->InstallProtocolInterface()
+
+**/
+EFI_STATUS
+EfiLibInstallAllDriverProtocols (
+ IN const EFI_HANDLE ImageHandle,
+ IN const EFI_SYSTEM_TABLE *SystemTable,
+ IN EFI_DRIVER_BINDING_PROTOCOL *DriverBinding,
+ IN EFI_HANDLE DriverBindingHandle,
+ IN const EFI_COMPONENT_NAME_PROTOCOL *ComponentName, OPTIONAL
+ IN const EFI_DRIVER_CONFIGURATION_PROTOCOL *DriverConfiguration, OPTIONAL
+ IN const EFI_DRIVER_DIAGNOSTICS_PROTOCOL *DriverDiagnostics OPTIONAL
+ )
+{
+ //
+ // bugbug:Need to implement ...
+ //
+
+ return EFI_SUCCESS;
+}
+