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1) Add Doxygen Comments 

2) Add some ASSERTs to assist debug.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5206 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12 2008-05-15 09:14:36 +00:00
parent 0a1d7bdc45
commit 1a6cdbd9c5
1 changed files with 171 additions and 0 deletions
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171
EdkCompatibilityPkg/Compatibility/FrameworkHiiToUefiHiiThunk/ConfigAccess.c
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@ -27,6 +27,25 @@ HII_TRHUNK_CONFIG_ACCESS_PROTOCOL_INSTANCE ConfigAccessProtocolInstanceTempate =
{NULL, NULL} //ConfigAccessStorageListHead
};
/**
Find and return the pointer to Package Header of the Form package
in the Framework Package List. The Framework Package List is created
by a module calling the Framework HII interface.
The Framwork Package List contains package data
generated by Intel's UEFI VFR Compiler and String gather tool. The data format
of the package data is defined by TIANO_AUTOGEN_PACKAGES_HEADER.
If the package list contains other type of packages such as KEYBOARD_LAYOUT,
FONTS and IMAGES, the ASSERT. This is to make sure the caller is a
Framework Module which does not include packages introduced by UEFI Specification
or packages that is not supported by Thunk layer.
@param Packages The Framework Package List
@retval EFI_HII_PACKAGE_HEADER* Return the Package Header of
Form Package.
@retval NULL If no Form Package is found.
**/
EFI_HII_PACKAGE_HEADER *
GetIfrFormSet (
IN CONST EFI_HII_PACKAGES *Packages
@ -73,6 +92,21 @@ GetIfrFormSet (
return (EFI_HII_PACKAGE_HEADER *) NULL;
}
/**
This function scan EFI_IFR_VARSTORE_OP in the Form Package.
It create entries for these VARSTORE found and append the entry
to a Link List.
If FormSetPackage is not EFI_HII_PACKAGE_FORM, then ASSERT.
If there is no linear buffer storage in this formset, then ASSERT.
@param FormSetPackage The Form Package header.
@param BufferStorageListHead The link list for the VARSTORE found in the form package.
@retval EFI_SUCCESS The function scan the form set and find one or more
VARSTOREs.
@retval EFI_OUT_OF_RESOURCES There is not enough memory to complete the function.
**/
EFI_STATUS
GetBufferStorage (
IN CONST EFI_HII_PACKAGE_HEADER *FormSetPackage,
@ -86,6 +120,8 @@ GetBufferStorage (
EFI_IFR_VARSTORE *VarStoreOpCode;
HII_TRHUNK_BUFFER_STORAGE_KEY *BufferStorageKey;
ASSERT (FormSetPackage->Type == EFI_HII_PACKAGE_FORM);
OpCodeOffset = sizeof (EFI_HII_PACKAGE_HEADER);
while (OpCodeOffset < FormSetPackage->Length) {
OpCodeData = (UINT8 *) FormSetPackage + OpCodeOffset;
@ -113,10 +149,24 @@ GetBufferStorage (
InsertTailList (BufferStorageListHead, &BufferStorageKey->List);
}
}
return EFI_SUCCESS;
}
/**
This function installs a EFI_CONFIG_ACCESS_PROTOCOL instance for a form package registered
by a module using Framework HII Protocol Interfaces.
UEFI HII require EFI_HII_CONFIG_ACCESS_PROTOCOL to be installed on a EFI_HANDLE, so
that Setup Utility can load the Buffer Storage using this protocol.
@param Packages The framework package list.
@param MapEntry The Thunk Layer Handle Mapping Database Entry.
@retval EFI_SUCCESS The Config Access Protocol is installed successfully.
@retval EFI_OUT_RESOURCE There is not enough memory.
**/
EFI_STATUS
InstallDefaultUefiConfigAccessProtocol (
IN CONST EFI_HII_PACKAGES *Packages,
@ -132,12 +182,15 @@ InstallDefaultUefiConfigAccessProtocol (
sizeof (HII_TRHUNK_CONFIG_ACCESS_PROTOCOL_INSTANCE),
&ConfigAccessProtocolInstanceTempate
);
ASSERT (ConfigAccessInstance != NULL);
InitializeListHead (&ConfigAccessInstance->ConfigAccessBufferStorageListHead);
//
// We assume there is only one formset package in each Forms Package
//
FormSetPackage = GetIfrFormSet (Packages);
ASSERT (FormSetPackage != NULL);
Status = GetBufferStorage (FormSetPackage, &ConfigAccessInstance->ConfigAccessBufferStorageListHead);
if (EFI_ERROR (Status)) {
FreePool (ConfigAccessInstance);
@ -160,6 +213,17 @@ InstallDefaultUefiConfigAccessProtocol (
return EFI_SUCCESS;
}
/**
Wrap EFI_HII_CONFIG_ACCESS_PROTOCOL.RouteConfig to a call to EFI_FORM_CALLBACK_PROTOCOL.NvWrite.
@param BufferStorageKey The key with all attributes needed to call EFI_FORM_CALLBACK_PROTOCOL.NvWrite.
@param FrameworkFormCallBack The EFI_FORM_CALLBACK_PROTOCOL registered by Framework HII module.
@param Data The data to be saved.
@param DataSize The size of data.
@retval EFI_STATUS The status returned by the EFI_FORM_CALLBACK_PROTOCOL.NvWrite.
**/
EFI_STATUS
RouteConfigToFrameworkFormCallBack (
IN HII_TRHUNK_BUFFER_STORAGE_KEY *BufferStorageKey,
@ -183,6 +247,18 @@ RouteConfigToFrameworkFormCallBack (
return Status;
}
/**
Wrap the EFI_HII_CONFIG_ACCESS_PROTOCOL.ExtractConfig to a call to EFI_FORM_CALLBACK_PROTOCOL.NvRead.
@param BufferStorageKey The key with all attributes needed to call EFI_FORM_CALLBACK_PROTOCOL.NvRead.
@param FrameworkFormCallBack The EFI_FORM_CALLBACK_PROTOCOL registered by Framework HII module.
@param Data The data read.
@param DataSize The size of data.
@retval EFI_STATUS The status returned by the EFI_FORM_CALLBACK_PROTOCOL.NvWrite.
@retval EFI_INVALID_PARAMETER If the EFI_FORM_CALLBACK_PROTOCOL.NvRead return the size information of the data
does not match what has been recorded early in he HII_TRHUNK_BUFFER_STORAGE_KEY.
**/
EFI_STATUS
ExtractConfigFromFrameworkFormCallBack (
IN HII_TRHUNK_BUFFER_STORAGE_KEY *BufferStorageKey,
@ -228,6 +304,16 @@ ExtractConfigFromFrameworkFormCallBack (
return Status;
}
/**
Wrap the EFI_HII_CONFIG_ACCESS_PROTOCOL.ExtractConfig to a call to UEFI Variable Set Service.
@param BufferStorageKey The key with all attributes needed to call a UEFI Variable Get Service.
@param Data The data read.
@param DataSize The size of data.
@retval EFI_STATUS The status returned by the UEFI Variable Set Service.
**/
EFI_STATUS
RouteConfigToUefiVariable (
IN HII_TRHUNK_BUFFER_STORAGE_KEY *BufferStorageKey,
@ -244,6 +330,23 @@ RouteConfigToUefiVariable (
);
}
/**
Wrap the EFI_HII_CONFIG_ACCESS_PROTOCOL.ExtractConfig to a call to UEFI Variable Get Service.
@param BufferStorageKey The key with all attributes needed to call a UEFI Variable Get Service.
@param Data The data read.
@param DataSize The size of data.
If the UEFI Variable Get Service return the size information of the data
does not match what has been recorded early in he HII_TRHUNK_BUFFER_STORAGE_KEY.
then ASSERT.
@retval EFI_STATUS The status returned by the UEFI Variable Get Service.
@retval EFI_INVALID_PARAMETER If the UEFI Variable Get Service return the size information of the data
does not match what has been recorded early in he HII_TRHUNK_BUFFER_STORAGE_KEY.
**/
EFI_STATUS
ExtractConfigFromUefiVariable (
IN HII_TRHUNK_BUFFER_STORAGE_KEY *BufferStorageKey,
@ -286,7 +389,29 @@ ExtractConfigFromUefiVariable (
return Status;
}
/**
This function implement the EFI_HII_CONFIG_ACCESS_PROTOCOL.ExtractConfig
so that data can be read from the data storage such as UEFI Variable or module's
customized storage exposed by EFI_FRAMEWORK_CALLBACK.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL
@param Request A null-terminated Unicode string in <ConfigRequest> format. Note that this
includes the routing information as well as the configurable name / value pairs. It is
invalid for this string to be in <MultiConfigRequest> format.
@param Progress On return, points to a character in the Request string. Points to the string¡¯s null
terminator if request was successful. Points to the most recent ¡®&¡¯ before the first
failing name / value pair (or the beginning of the string if the failure is in the first
name / value pair) if the request was not successful
@param Results A null-terminated Unicode string in <ConfigAltResp> format which has all
values filled in for the names in the Request string. String to be allocated by the called
function.
@retval EFI_INVALID_PARAMETER If there is no Buffer Storage for this Config Access instance.
@retval EFI_SUCCESS The setting is retrived successfully.
@retval !EFI_SUCCESS The error returned by UEFI Get Variable or Framework Form Callback Nvread.
**/
EFI_STATUS
EFIAPI
ThunkExtractConfig (
@ -306,6 +431,9 @@ ThunkExtractConfig (
Data = NULL;
ConfigaAccessInstance = HII_TRHUNK_CONFIG_ACCESS_PROTOCOL_INSTANCE_FROM_PROTOCOL (This);
//
// For now, only one var varstore is supported so that we don't need to parse the Configuration string.
//
ListEntry = GetFirstNode (&ConfigaAccessInstance->ConfigAccessBufferStorageListHead);
if (ListEntry == NULL) {
ASSERT (FALSE);
@ -345,7 +473,22 @@ ThunkExtractConfig (
return Status;
}
/**
This function implement the EFI_HII_CONFIG_ACCESS_PROTOCOL.RouteConfig
so that data can be written to the data storage such as UEFI Variable or module's
customized storage exposed by EFI_FRAMEWORK_CALLBACK.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL
@param Configuration A null-terminated Unicode string in <ConfigResp> format.
@param a pointer to a string filled in with the offset of the most recent ¡®&¡¯ before the first
failing name / value pair (or the beginning of the string if the failure is in the first
name / value pair) or the terminating NULL if all was successful.
@retval EFI_INVALID_PARAMETER If there is no Buffer Storage for this Config Access instance.
@retval EFI_SUCCESS The setting is saved successfully.
@retval !EFI_SUCCESS The error returned by UEFI Set Variable or Framework Form Callback Nvwrite.
**/
EFI_STATUS
EFIAPI
ThunkRouteConfig (
@ -365,6 +508,9 @@ ThunkRouteConfig (
Data = NULL;
ConfigaAccessInstance = HII_TRHUNK_CONFIG_ACCESS_PROTOCOL_INSTANCE_FROM_PROTOCOL (This);
//
// For now, only one var varstore is supported so that we don't need to parse the Configuration string.
//
ListEntry = GetFirstNode (&ConfigaAccessInstance->ConfigAccessBufferStorageListHead);
if (ListEntry == NULL) {
ASSERT (FALSE);
@ -411,6 +557,31 @@ Done:
return Status;
}
/**
Wrap the EFI_HII_CONFIG_ACCESS_PROTOCOL.CallBack to EFI_FORM_CALLBACK_PROTOCOL.Callback. Therefor,
the framework HII module willl do no porting (except some porting works needed for callback for EFI_ONE_OF_OPTION opcode)
and still work with a UEFI HII SetupBrowser.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Action Specifies the type of action taken by the browser. See EFI_BROWSER_ACTION_x.
@param QuestionId A unique value which is sent to the original exporting driver so that it can identify the
type of data to expect. The format of the data tends to vary based on the opcode that
generated the callback.
@param Type The type of value for the question. See EFI_IFR_TYPE_x in
EFI_IFR_ONE_OF_OPTION.
@param Value A pointer to the data being sent to the original exporting driver. The type is specified
by Type. Type EFI_IFR_TYPE_VALUE is defined in
EFI_IFR_ONE_OF_OPTION.
@param ActionRequest On return, points to the action requested by the callback function. Type
EFI_BROWSER_ACTION_REQUEST is specified in SendForm() in the Form
Browser Protocol.
@retval EFI_UNSUPPORTED If the Framework HII module does not register Callback although it specify the opcode under
focuse to be INTERRACTIVE.
@retval EFI_SUCCESS The callback complete successfully.
@retval !EFI_SUCCESS The error code returned by EFI_FORM_CALLBACK_PROTOCOL.Callback.
**/
EFI_STATUS
EFIAPI
ThunkCallback (