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audk/MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c

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/** @file
This is an example of how a driver might export data to the HII protocol to be
later utilized by the Setup Protocol
Copyright (c) 2004 - 2017, Intel Corporation. All rights reserved.<BR>
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.
**/
#include "DriverSample.h"
#define DISPLAY_ONLY_MY_ITEM 0x0002
CHAR16 VariableName[] = L"MyIfrNVData";
CHAR16 MyEfiVar[] = L"MyEfiVar";
EFI_HANDLE DriverHandle[2] = {NULL, NULL};
DRIVER_SAMPLE_PRIVATE_DATA *mPrivateData = NULL;
EFI_EVENT mEvent;
HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath0 = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
DRIVER_SAMPLE_FORMSET_GUID
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
(UINT8) (END_DEVICE_PATH_LENGTH),
(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
}
}
};
HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath1 = {
{
{
HARDWARE_DEVICE_PATH,
HW_VENDOR_DP,
{
(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
}
},
DRIVER_SAMPLE_INVENTORY_GUID
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
(UINT8) (END_DEVICE_PATH_LENGTH),
(UINT8) ((END_DEVICE_PATH_LENGTH) >> 8)
}
}
};
/**
Set value of a data element in an Array by its Index.
@param Array The data array.
@param Type Type of the data in this array.
@param Index Zero based index for data in this array.
@param Value The value to be set.
**/
VOID
SetArrayData (
IN VOID *Array,
IN UINT8 Type,
IN UINTN Index,
IN UINT64 Value
)
{
ASSERT (Array != NULL);
switch (Type) {
case EFI_IFR_TYPE_NUM_SIZE_8:
*(((UINT8 *) Array) + Index) = (UINT8) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_16:
*(((UINT16 *) Array) + Index) = (UINT16) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_32:
*(((UINT32 *) Array) + Index) = (UINT32) Value;
break;
case EFI_IFR_TYPE_NUM_SIZE_64:
*(((UINT64 *) Array) + Index) = (UINT64) Value;
break;
default:
break;
}
}
/**
Notification function for keystrokes.
@param[in] KeyData The key that was pressed.
@retval EFI_SUCCESS The operation was successful.
**/
EFI_STATUS
EFIAPI
NotificationFunction(
IN EFI_KEY_DATA *KeyData
)
{
gBS->SignalEvent (mEvent);
return EFI_SUCCESS;
}
/**
Function to start monitoring for CTRL-C using SimpleTextInputEx.
@retval EFI_SUCCESS The feature is enabled.
@retval EFI_OUT_OF_RESOURCES There is not enough mnemory available.
**/
EFI_STATUS
EFIAPI
InternalStartMonitor(
VOID
)
{
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleEx;
EFI_KEY_DATA KeyData;
EFI_STATUS Status;
EFI_HANDLE *Handles;
UINTN HandleCount;
UINTN HandleIndex;
EFI_HANDLE NotifyHandle;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiSimpleTextInputExProtocolGuid,
NULL,
&HandleCount,
&Handles
);
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **) &SimpleEx);
ASSERT_EFI_ERROR (Status);
KeyData.KeyState.KeyToggleState = 0;
KeyData.Key.ScanCode = 0;
KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
KeyData.Key.UnicodeChar = L'c';
Status = SimpleEx->RegisterKeyNotify(
SimpleEx,
&KeyData,
NotificationFunction,
&NotifyHandle);
if (EFI_ERROR (Status)) {
break;
}
KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
Status = SimpleEx->RegisterKeyNotify(
SimpleEx,
&KeyData,
NotificationFunction,
&NotifyHandle);
if (EFI_ERROR (Status)) {
break;
}
}
return EFI_SUCCESS;
}
/**
Function to stop monitoring for CTRL-C using SimpleTextInputEx.
@retval EFI_SUCCESS The feature is enabled.
@retval EFI_OUT_OF_RESOURCES There is not enough mnemory available.
**/
EFI_STATUS
EFIAPI
InternalStopMonitor(
VOID
)
{
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleEx;
EFI_STATUS Status;
EFI_HANDLE *Handles;
EFI_KEY_DATA KeyData;
UINTN HandleCount;
UINTN HandleIndex;
EFI_HANDLE NotifyHandle;
Status = gBS->LocateHandleBuffer (
ByProtocol,
&gEfiSimpleTextInputExProtocolGuid,
NULL,
&HandleCount,
&Handles
);
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **) &SimpleEx);
ASSERT_EFI_ERROR (Status);
KeyData.KeyState.KeyToggleState = 0;
KeyData.Key.ScanCode = 0;
KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
KeyData.Key.UnicodeChar = L'c';
Status = SimpleEx->RegisterKeyNotify(
SimpleEx,
&KeyData,
NotificationFunction,
&NotifyHandle);
if (!EFI_ERROR (Status)) {
Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
}
KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
Status = SimpleEx->RegisterKeyNotify(
SimpleEx,
&KeyData,
NotificationFunction,
&NotifyHandle);
if (!EFI_ERROR (Status)) {
Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
}
}
return EFI_SUCCESS;
}
/**
Update names of Name/Value storage to current language.
@param PrivateData Points to the driver private data.
@retval EFI_SUCCESS All names are successfully updated.
@retval EFI_NOT_FOUND Failed to get Name from HII database.
**/
EFI_STATUS
LoadNameValueNames (
IN DRIVER_SAMPLE_PRIVATE_DATA *PrivateData
)
{
UINTN Index;
//
// Get Name/Value name string of current language
//
for (Index = 0; Index < NAME_VALUE_NAME_NUMBER; Index++) {
PrivateData->NameValueName[Index] = HiiGetString (
PrivateData->HiiHandle[0],
PrivateData->NameStringId[Index],
NULL
);
if (PrivateData->NameValueName[Index] == NULL) {
return EFI_NOT_FOUND;
}
}
return EFI_SUCCESS;
}
/**
Get the value of <Number> in <BlockConfig> format, i.e. the value of OFFSET
or WIDTH or VALUE.
<BlockConfig> ::= 'OFFSET='<Number>&'WIDTH='<Number>&'VALUE'=<Number>
This is a internal function.
@param StringPtr String in <BlockConfig> format and points to the
first character of <Number>.
@param Number The output value. Caller takes the responsibility
to free memory.
@param Len Length of the <Number>, in characters.
@retval EFI_OUT_OF_RESOURCES Insufficient resources to store neccessary
structures.
@retval EFI_SUCCESS Value of <Number> is outputted in Number
successfully.
**/
EFI_STATUS
GetValueOfNumber (
IN EFI_STRING StringPtr,
OUT UINT8 **Number,
OUT UINTN *Len
)
{
EFI_STRING TmpPtr;
UINTN Length;
EFI_STRING Str;
UINT8 *Buf;
EFI_STATUS Status;
UINT8 DigitUint8;
UINTN Index;
CHAR16 TemStr[2];
if (StringPtr == NULL || *StringPtr == L'\0' || Number == NULL || Len == NULL) {
return EFI_INVALID_PARAMETER;
}
Buf = NULL;
TmpPtr = StringPtr;
while (*StringPtr != L'\0' && *StringPtr != L'&') {
StringPtr++;
}
*Len = StringPtr - TmpPtr;
Length = *Len + 1;
Str = (EFI_STRING) AllocateZeroPool (Length * sizeof (CHAR16));
if (Str == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
CopyMem (Str, TmpPtr, *Len * sizeof (CHAR16));
*(Str + *Len) = L'\0';
Length = (Length + 1) / 2;
Buf = (UINT8 *) AllocateZeroPool (Length);
if (Buf == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
Length = *Len;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0; Index < Length; Index ++) {
TemStr[0] = Str[Length - Index - 1];
DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
if ((Index & 1) == 0) {
Buf [Index/2] = DigitUint8;
} else {
Buf [Index/2] = (UINT8) ((DigitUint8 << 4) + Buf [Index/2]);
}
}
*Number = Buf;
Status = EFI_SUCCESS;
Exit:
if (Str != NULL) {
FreePool (Str);
}
return Status;
}
/**
Create altcfg string.
@param Result The request result string.
@param ConfigHdr The request head info. <ConfigHdr> format.
@param Offset The offset of the parameter int he structure.
@param Width The width of the parameter.
@retval The string with altcfg info append at the end.
**/
EFI_STRING
CreateAltCfgString (
IN EFI_STRING Result,
IN EFI_STRING ConfigHdr,
IN UINTN Offset,
IN UINTN Width
)
{
EFI_STRING StringPtr;
EFI_STRING TmpStr;
UINTN NewLen;
NewLen = StrLen (Result);
//
// String Len = ConfigResp + AltConfig + AltConfig + 1("\0")
//
NewLen = (NewLen + ((1 + StrLen (ConfigHdr) + 8 + 4) + (8 + 4 + 7 + 4 + 7 + 4)) * 2 + 1) * sizeof (CHAR16);
StringPtr = AllocateZeroPool (NewLen);
if (StringPtr == NULL) {
return NULL;
}
TmpStr = StringPtr;
if (Result != NULL) {
StrCpyS (StringPtr, NewLen / sizeof (CHAR16), Result);
StringPtr += StrLen (Result);
FreePool (Result);
}
UnicodeSPrint (
StringPtr,
(1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
L"&%s&ALTCFG=%04x",
ConfigHdr,
EFI_HII_DEFAULT_CLASS_STANDARD
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
Offset,
Width,
DEFAULT_CLASS_STANDARD_VALUE
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(1 + StrLen (ConfigHdr) + 8 + 4 + 1) * sizeof (CHAR16),
L"&%s&ALTCFG=%04x",
ConfigHdr,
EFI_HII_DEFAULT_CLASS_MANUFACTURING
);
StringPtr += StrLen (StringPtr);
UnicodeSPrint (
StringPtr,
(8 + 4 + 7 + 4 + 7 + 4 + 1) * sizeof (CHAR16),
L"&OFFSET=%04x&WIDTH=%04x&VALUE=%04x",
Offset,
Width,
DEFAULT_CLASS_MANUFACTURING_VALUE
);
StringPtr += StrLen (StringPtr);
return TmpStr;
}
/**
Check whether need to add the altcfg string. if need to add, add the altcfg
string.
@param RequestResult The request result string.
@param ConfigRequestHdr The request head info. <ConfigHdr> format.
**/
VOID
AppendAltCfgString (
IN OUT EFI_STRING *RequestResult,
IN EFI_STRING ConfigRequestHdr
)
{
EFI_STRING StringPtr;
UINTN Length;
UINT8 *TmpBuffer;
UINTN Offset;
UINTN Width;
UINTN BlockSize;
UINTN ValueOffset;
UINTN ValueWidth;
EFI_STATUS Status;
TmpBuffer = NULL;
StringPtr = *RequestResult;
StringPtr = StrStr (StringPtr, L"OFFSET");
BlockSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
ValueOffset = OFFSET_OF (DRIVER_SAMPLE_CONFIGURATION, GetDefaultValueFromAccess);
ValueWidth = sizeof (((DRIVER_SAMPLE_CONFIGURATION *)0)->GetDefaultValueFromAccess);
if (StringPtr == NULL) {
return;
}
while (*StringPtr != 0 && StrnCmp (StringPtr, L"OFFSET=", StrLen (L"OFFSET=")) == 0) {
StringPtr += StrLen (L"OFFSET=");
//
// Get Offset
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
Offset = 0;
CopyMem (
&Offset,
TmpBuffer,
(((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
);
FreePool (TmpBuffer);
StringPtr += Length;
if (StrnCmp (StringPtr, L"&WIDTH=", StrLen (L"&WIDTH=")) != 0) {
return;
}
StringPtr += StrLen (L"&WIDTH=");
//
// Get Width
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
Width = 0;
CopyMem (
&Width,
TmpBuffer,
(((Length + 1) / 2) < sizeof (UINTN)) ? ((Length + 1) / 2) : sizeof (UINTN)
);
FreePool (TmpBuffer);
StringPtr += Length;
if (StrnCmp (StringPtr, L"&VALUE=", StrLen (L"&VALUE=")) != 0) {
return;
}
StringPtr += StrLen (L"&VALUE=");
//
// Get Value
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
StringPtr += Length;
//
// Skip the character "&" before "OFFSET".
//
StringPtr ++;
//
// Calculate Value and convert it to hex string.
//
if (Offset + Width > BlockSize) {
return;
}
if (Offset <= ValueOffset && Offset + Width >= ValueOffset + ValueWidth) {
*RequestResult = CreateAltCfgString(*RequestResult, ConfigRequestHdr, ValueOffset, ValueWidth);
return;
}
}
}
/**
This function allows a caller to extract the current configuration for one
or more named elements from the target driver.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Request A null-terminated Unicode string in
<ConfigRequest> 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_SUCCESS The Results is filled with the requested values.
@retval EFI_OUT_OF_RESOURCES Not enough memory to store the results.
@retval EFI_INVALID_PARAMETER Request is illegal syntax, or unknown name.
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
driver.
**/
EFI_STATUS
EFIAPI
ExtractConfig (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN CONST EFI_STRING Request,
OUT EFI_STRING *Progress,
OUT EFI_STRING *Results
)
{
EFI_STATUS Status;
UINTN BufferSize;
DRIVER_SAMPLE_PRIVATE_DATA *PrivateData;
EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
EFI_STRING ConfigRequest;
EFI_STRING ConfigRequestHdr;
UINTN Size;
EFI_STRING Value;
UINTN ValueStrLen;
CHAR16 BackupChar;
CHAR16 *StrPointer;
BOOLEAN AllocatedRequest;
if (Progress == NULL || Results == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Initialize the local variables.
//
ConfigRequestHdr = NULL;
ConfigRequest = NULL;
Size = 0;
*Progress = Request;
AllocatedRequest = FALSE;
PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
HiiConfigRouting = PrivateData->HiiConfigRouting;
//
// Get Buffer Storage data from EFI variable.
// Try to get the current setting from variable.
//
BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
Status = gRT->GetVariable (
VariableName,
&gDriverSampleFormSetGuid,
NULL,
&BufferSize,
&PrivateData->Configuration
);
if (EFI_ERROR (Status)) {
return EFI_NOT_FOUND;
}
if (Request == NULL) {
//
// Request is set to NULL, construct full request string.
//
//
// Allocate and fill a buffer large enough to hold the <ConfigHdr> template
// followed by "&OFFSET=0&WIDTH=WWWWWWWWWWWWWWWW" followed by a Null-terminator
//
ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
Size = (StrLen (ConfigRequestHdr) + 32 + 1) * sizeof (CHAR16);
ConfigRequest = AllocateZeroPool (Size);
ASSERT (ConfigRequest != NULL);
AllocatedRequest = TRUE;
UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);
FreePool (ConfigRequestHdr);
ConfigRequestHdr = NULL;
} else {
//
// Check routing data in <ConfigHdr>.
// Note: if only one Storage is used, then this checking could be skipped.
//
if (!HiiIsConfigHdrMatch (Request, &gDriverSampleFormSetGuid, NULL)) {
return EFI_NOT_FOUND;
}
//
// Check whether request for EFI Varstore. EFI varstore get data
// through hii database, not support in this path.
//
if (HiiIsConfigHdrMatch(Request, &gDriverSampleFormSetGuid, MyEfiVar)) {
return EFI_UNSUPPORTED;
}
//
// Set Request to the unified request string.
//
ConfigRequest = Request;
//
// Check whether Request includes Request Element.
//
if (StrStr (Request, L"OFFSET") == NULL) {
//
// Check Request Element does exist in Reques String
//
StrPointer = StrStr (Request, L"PATH");
if (StrPointer == NULL) {
return EFI_INVALID_PARAMETER;
}
if (StrStr (StrPointer, L"&") == NULL) {
Size = (StrLen (Request) + 32 + 1) * sizeof (CHAR16);
ConfigRequest = AllocateZeroPool (Size);
ASSERT (ConfigRequest != NULL);
AllocatedRequest = TRUE;
UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", Request, (UINT64)BufferSize);
}
}
}
//
// Check if requesting Name/Value storage
//
if (StrStr (ConfigRequest, L"OFFSET") == NULL) {
//
// Update Name/Value storage Names
//
Status = LoadNameValueNames (PrivateData);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Allocate memory for <ConfigResp>, e.g. Name0=0x11, Name1=0x1234, Name2="ABCD"
// <Request> ::=<ConfigHdr>&Name0&Name1&Name2
// <ConfigResp>::=<ConfigHdr>&Name0=11&Name1=1234&Name2=0041004200430044
//
BufferSize = (StrLen (ConfigRequest) +
1 + sizeof (PrivateData->Configuration.NameValueVar0) * 2 +
1 + sizeof (PrivateData->Configuration.NameValueVar1) * 2 +
1 + sizeof (PrivateData->Configuration.NameValueVar2) * 2 + 1) * sizeof (CHAR16);
*Results = AllocateZeroPool (BufferSize);
ASSERT (*Results != NULL);
StrCpyS (*Results, BufferSize / sizeof (CHAR16), ConfigRequest);
Value = *Results;
//
// Append value of NameValueVar0, type is UINT8
//
if ((Value = StrStr (*Results, PrivateData->NameValueName[0])) != NULL) {
Value += StrLen (PrivateData->NameValueName[0]);
ValueStrLen = ((sizeof (PrivateData->Configuration.NameValueVar0) * 2) + 1);
CopyMem (Value + ValueStrLen, Value, StrSize (Value));
BackupChar = Value[ValueStrLen];
*Value++ = L'=';
UnicodeValueToStringS (
Value,
BufferSize - ((UINTN)Value - (UINTN)*Results),
PREFIX_ZERO | RADIX_HEX,
PrivateData->Configuration.NameValueVar0,
sizeof (PrivateData->Configuration.NameValueVar0) * 2
);
Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
*Value = BackupChar;
}
//
// Append value of NameValueVar1, type is UINT16
//
if ((Value = StrStr (*Results, PrivateData->NameValueName[1])) != NULL) {
Value += StrLen (PrivateData->NameValueName[1]);
ValueStrLen = ((sizeof (PrivateData->Configuration.NameValueVar1) * 2) + 1);
CopyMem (Value + ValueStrLen, Value, StrSize (Value));
BackupChar = Value[ValueStrLen];
*Value++ = L'=';
UnicodeValueToStringS (
Value,
BufferSize - ((UINTN)Value - (UINTN)*Results),
PREFIX_ZERO | RADIX_HEX,
PrivateData->Configuration.NameValueVar1,
sizeof (PrivateData->Configuration.NameValueVar1) * 2
);
Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
*Value = BackupChar;
}
//
// Append value of NameValueVar2, type is CHAR16 *
//
if ((Value = StrStr (*Results, PrivateData->NameValueName[2])) != NULL) {
Value += StrLen (PrivateData->NameValueName[2]);
ValueStrLen = StrLen (PrivateData->Configuration.NameValueVar2) * 4 + 1;
CopyMem (Value + ValueStrLen, Value, StrSize (Value));
*Value++ = L'=';
//
// Convert Unicode String to Config String, e.g. "ABCD" => "0041004200430044"
//
StrPointer = (CHAR16 *) PrivateData->Configuration.NameValueVar2;
for (; *StrPointer != L'\0'; StrPointer++) {
UnicodeValueToStringS (
Value,
BufferSize - ((UINTN)Value - (UINTN)*Results),
PREFIX_ZERO | RADIX_HEX,
*StrPointer,
4
);
Value += StrnLenS (Value, (BufferSize - ((UINTN)Value - (UINTN)*Results)) / sizeof (CHAR16));
}
}
Status = EFI_SUCCESS;
} else {
//
// Convert buffer data to <ConfigResp> by helper function BlockToConfig()
//
Status = HiiConfigRouting->BlockToConfig (
HiiConfigRouting,
ConfigRequest,
(UINT8 *) &PrivateData->Configuration,
BufferSize,
Results,
Progress
);
if (!EFI_ERROR (Status)) {
ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
AppendAltCfgString(Results, ConfigRequestHdr);
}
}
//
// Free the allocated config request string.
//
if (AllocatedRequest) {
FreePool (ConfigRequest);
}
if (ConfigRequestHdr != NULL) {
FreePool (ConfigRequestHdr);
}
//
// Set Progress string to the original request string.
//
if (Request == NULL) {
*Progress = NULL;
} else if (StrStr (Request, L"OFFSET") == NULL) {
*Progress = Request + StrLen (Request);
}
return Status;
}
/**
This function processes the results of changes in configuration.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Configuration A null-terminated Unicode string in <ConfigResp>
format.
@param Progress 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_SUCCESS The Results is processed successfully.
@retval EFI_INVALID_PARAMETER Configuration is NULL.
@retval EFI_NOT_FOUND Routing data doesn't match any storage in this
driver.
**/
EFI_STATUS
EFIAPI
RouteConfig (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN CONST EFI_STRING Configuration,
OUT EFI_STRING *Progress
)
{
EFI_STATUS Status;
UINTN BufferSize;
DRIVER_SAMPLE_PRIVATE_DATA *PrivateData;
EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
CHAR16 *Value;
CHAR16 *StrPtr;
CHAR16 TemStr[5];
UINT8 *DataBuffer;
UINT8 DigitUint8;
UINTN Index;
CHAR16 *StrBuffer;
if (Configuration == NULL || Progress == NULL) {
return EFI_INVALID_PARAMETER;
}
PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
HiiConfigRouting = PrivateData->HiiConfigRouting;
*Progress = Configuration;
//
// Check routing data in <ConfigHdr>.
// Note: if only one Storage is used, then this checking could be skipped.
//
if (!HiiIsConfigHdrMatch (Configuration, &gDriverSampleFormSetGuid, NULL)) {
return EFI_NOT_FOUND;
}
//
// Check whether request for EFI Varstore. EFI varstore get data
// through hii database, not support in this path.
//
if (HiiIsConfigHdrMatch(Configuration, &gDriverSampleFormSetGuid, MyEfiVar)) {
return EFI_UNSUPPORTED;
}
//
// Get Buffer Storage data from EFI variable
//
BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
Status = gRT->GetVariable (
VariableName,
&gDriverSampleFormSetGuid,
NULL,
&BufferSize,
&PrivateData->Configuration
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check if configuring Name/Value storage
//
if (StrStr (Configuration, L"OFFSET") == NULL) {
//
// Update Name/Value storage Names
//
Status = LoadNameValueNames (PrivateData);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Convert value for NameValueVar0
//
if ((Value = StrStr (Configuration, PrivateData->NameValueName[0])) != NULL) {
//
// Skip "Name="
//
Value += StrLen (PrivateData->NameValueName[0]);
Value++;
//
// Get Value String
//
StrPtr = StrStr (Value, L"&");
if (StrPtr == NULL) {
StrPtr = Value + StrLen (Value);
}
//
// Convert Value to Buffer data
//
DataBuffer = (UINT8 *) &PrivateData->Configuration.NameValueVar0;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0, StrPtr --; StrPtr >= Value; StrPtr --, Index ++) {
TemStr[0] = *StrPtr;
DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
if ((Index & 1) == 0) {
DataBuffer [Index/2] = DigitUint8;
} else {
DataBuffer [Index/2] = (UINT8) ((UINT8) (DigitUint8 << 4) + DataBuffer [Index/2]);
}
}
}
//
// Convert value for NameValueVar1
//
if ((Value = StrStr (Configuration, PrivateData->NameValueName[1])) != NULL) {
//
// Skip "Name="
//
Value += StrLen (PrivateData->NameValueName[1]);
Value++;
//
// Get Value String
//
StrPtr = StrStr (Value, L"&");
if (StrPtr == NULL) {
StrPtr = Value + StrLen (Value);
}
//
// Convert Value to Buffer data
//
DataBuffer = (UINT8 *) &PrivateData->Configuration.NameValueVar1;
ZeroMem (TemStr, sizeof (TemStr));
for (Index = 0, StrPtr --; StrPtr >= Value; StrPtr --, Index ++) {
TemStr[0] = *StrPtr;
DigitUint8 = (UINT8) StrHexToUint64 (TemStr);
if ((Index & 1) == 0) {
DataBuffer [Index/2] = DigitUint8;
} else {
DataBuffer [Index/2] = (UINT8) ((UINT8) (DigitUint8 << 4) + DataBuffer [Index/2]);
}
}
}
//
// Convert value for NameValueVar2
//
if ((Value = StrStr (Configuration, PrivateData->NameValueName[2])) != NULL) {
//
// Skip "Name="
//
Value += StrLen (PrivateData->NameValueName[2]);
Value++;
//
// Get Value String
//
StrPtr = StrStr (Value, L"&");
if (StrPtr == NULL) {
StrPtr = Value + StrLen (Value);
}
//
// Convert Config String to Unicode String, e.g "0041004200430044" => "ABCD"
//
StrBuffer = (CHAR16 *) PrivateData->Configuration.NameValueVar2;
ZeroMem (TemStr, sizeof (TemStr));
while (Value < StrPtr) {
StrnCpyS (TemStr, sizeof (TemStr) / sizeof (CHAR16), Value, 4);
*(StrBuffer++) = (CHAR16) StrHexToUint64 (TemStr);
Value += 4;
}
*StrBuffer = L'\0';
}
//
// Store Buffer Storage back to EFI variable
//
Status = gRT->SetVariable(
VariableName,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
&PrivateData->Configuration
);
return Status;
}
//
// Convert <ConfigResp> to buffer data by helper function ConfigToBlock()
//
BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
Status = HiiConfigRouting->ConfigToBlock (
HiiConfigRouting,
Configuration,
(UINT8 *) &PrivateData->Configuration,
&BufferSize,
Progress
);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Store Buffer Storage back to EFI variable
//
Status = gRT->SetVariable(
VariableName,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
&PrivateData->Configuration
);
return Status;
}
/**
This function processes the results of changes in configuration.
@param This Points to the EFI_HII_CONFIG_ACCESS_PROTOCOL.
@param Action Specifies the type of action taken by the browser.
@param QuestionId A unique value which is sent to the original
exporting driver so that it can identify the type
of data to expect.
@param Type The type of value for the question.
@param Value A pointer to the data being sent to the original
exporting driver.
@param ActionRequest On return, points to the action requested by the
callback function.
@retval EFI_SUCCESS The callback successfully handled the action.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the
variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be saved.
@retval EFI_UNSUPPORTED The specified Action is not supported by the
callback.
**/
EFI_STATUS
EFIAPI
DriverCallback (
IN CONST EFI_HII_CONFIG_ACCESS_PROTOCOL *This,
IN EFI_BROWSER_ACTION Action,
IN EFI_QUESTION_ID QuestionId,
IN UINT8 Type,
IN EFI_IFR_TYPE_VALUE *Value,
OUT EFI_BROWSER_ACTION_REQUEST *ActionRequest
)
{
DRIVER_SAMPLE_PRIVATE_DATA *PrivateData;
EFI_STATUS Status;
VOID *StartOpCodeHandle;
VOID *OptionsOpCodeHandle;
EFI_IFR_GUID_LABEL *StartLabel;
VOID *EndOpCodeHandle;
EFI_IFR_GUID_LABEL *EndLabel;
EFI_INPUT_KEY Key;
DRIVER_SAMPLE_CONFIGURATION *Configuration;
MY_EFI_VARSTORE_DATA *EfiData;
EFI_FORM_ID FormId;
EFI_STRING Progress;
EFI_STRING Results;
UINT32 ProgressErr;
CHAR16 *TmpStr;
UINTN Index;
UINT64 BufferValue;
if (((Value == NULL) && (Action != EFI_BROWSER_ACTION_FORM_OPEN) && (Action != EFI_BROWSER_ACTION_FORM_CLOSE))||
(ActionRequest == NULL)) {
return EFI_INVALID_PARAMETER;
}
FormId = 0;
ProgressErr = 0;
Status = EFI_SUCCESS;
BufferValue = 3;
PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
switch (Action) {
case EFI_BROWSER_ACTION_FORM_OPEN:
{
if (QuestionId == 0x1234) {
//
// Sample CallBack for UEFI FORM_OPEN action:
// Add Save action into Form 3 when Form 1 is opened.
// This will be done only in FORM_OPEN CallBack of question with ID 0x1234 from Form 1.
//
PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
//
// Initialize the container for dynamic opcodes
//
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (StartOpCodeHandle != NULL);
//
// Create Hii Extend Label OpCode as the start opcode
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
StartLabel->Number = LABEL_UPDATE2;
HiiCreateActionOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
0x1238, // Question ID
STRING_TOKEN(STR_SAVE_TEXT), // Prompt text
STRING_TOKEN(STR_SAVE_TEXT), // Help text
EFI_IFR_FLAG_CALLBACK, // Question flag
0 // Action String ID
);
HiiUpdateForm (
PrivateData->HiiHandle[0], // HII handle
&gDriverSampleFormSetGuid, // Formset GUID
0x3, // Form ID
StartOpCodeHandle, // Label for where to insert opcodes
NULL // Insert data
);
HiiFreeOpCodeHandle (StartOpCodeHandle);
}
if (QuestionId == 0x1247) {
Status = InternalStartMonitor ();
ASSERT_EFI_ERROR (Status);
}
}
break;
case EFI_BROWSER_ACTION_FORM_CLOSE:
{
if (QuestionId == 0x5678) {
//
// Sample CallBack for UEFI FORM_CLOSE action:
// Show up a pop-up to specify Form 3 will be closed when exit Form 3.
//
do {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"",
L"You are going to leave third Form!",
L"Press ESC or ENTER to continue ...",
L"",
NULL
);
} while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
}
if (QuestionId == 0x1247) {
Status = InternalStopMonitor ();
ASSERT_EFI_ERROR (Status);
}
}
break;
case EFI_BROWSER_ACTION_RETRIEVE:
{
switch (QuestionId ) {
case 0x1248:
if (Type != EFI_IFR_TYPE_REF) {
return EFI_INVALID_PARAMETER;
}
Value->ref.FormId = 0x3;
break;
case 0x5678:
case 0x1247:
//
// We will reach here once the Question is refreshed
//
//
// Initialize the container for dynamic opcodes
//
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (StartOpCodeHandle != NULL);
//
// Create Hii Extend Label OpCode as the start opcode
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
if (QuestionId == 0x5678) {
StartLabel->Number = LABEL_UPDATE2;
FormId = 0x03;
PrivateData->Configuration.DynamicRefresh++;
} else if (QuestionId == 0x1247 ) {
StartLabel->Number = LABEL_UPDATE3;
FormId = 0x06;
PrivateData->Configuration.RefreshGuidCount++;
}
HiiCreateActionOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
0x1237, // Question ID
STRING_TOKEN(STR_EXIT_TEXT), // Prompt text
STRING_TOKEN(STR_EXIT_TEXT), // Help text
EFI_IFR_FLAG_CALLBACK, // Question flag
0 // Action String ID
);
HiiUpdateForm (
PrivateData->HiiHandle[0], // HII handle
&gDriverSampleFormSetGuid, // Formset GUID
FormId, // Form ID
StartOpCodeHandle, // Label for where to insert opcodes
NULL // Insert data
);
HiiFreeOpCodeHandle (StartOpCodeHandle);
//
// Refresh the Question value
//
Status = gRT->SetVariable(
VariableName,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
&PrivateData->Configuration
);
if (QuestionId == 0x5678) {
//
// Update uncommitted data of Browser
//
EfiData = AllocateZeroPool (sizeof (MY_EFI_VARSTORE_DATA));
ASSERT (EfiData != NULL);
if (HiiGetBrowserData (&gDriverSampleFormSetGuid, MyEfiVar, sizeof (MY_EFI_VARSTORE_DATA), (UINT8 *) EfiData)) {
EfiData->Field8 = 111;
HiiSetBrowserData (
&gDriverSampleFormSetGuid,
MyEfiVar,
sizeof (MY_EFI_VARSTORE_DATA),
(UINT8 *) EfiData,
NULL
);
}
FreePool (EfiData);
}
break;
}
}
break;
case EFI_BROWSER_ACTION_DEFAULT_STANDARD:
{
switch (QuestionId) {
case 0x1240:
Value->u8 = DEFAULT_CLASS_STANDARD_VALUE;
break;
case 0x1252:
for (Index = 0; Index < 3; Index ++) {
SetArrayData (Value, EFI_IFR_TYPE_NUM_SIZE_8, Index, BufferValue--);
}
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
}
break;
case EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING:
{
switch (QuestionId) {
case 0x1240:
Value->u8 = DEFAULT_CLASS_MANUFACTURING_VALUE;
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
}
break;
case EFI_BROWSER_ACTION_CHANGING:
{
switch (QuestionId) {
case 0x1249:
{
if (Type != EFI_IFR_TYPE_REF) {
return EFI_INVALID_PARAMETER;
}
Value->ref.FormId = 0x1234;
}
break;
case 0x1234:
//
// Initialize the container for dynamic opcodes
//
StartOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (StartOpCodeHandle != NULL);
EndOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (EndOpCodeHandle != NULL);
//
// Create Hii Extend Label OpCode as the start opcode
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
StartLabel->Number = LABEL_UPDATE1;
//
// Create Hii Extend Label OpCode as the end opcode
//
EndLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (EndOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
EndLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
EndLabel->Number = LABEL_END;
HiiCreateActionOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
0x1237, // Question ID
STRING_TOKEN(STR_EXIT_TEXT), // Prompt text
STRING_TOKEN(STR_EXIT_TEXT), // Help text
EFI_IFR_FLAG_CALLBACK, // Question flag
0 // Action String ID
);
//
// Create Option OpCode
//
OptionsOpCodeHandle = HiiAllocateOpCodeHandle ();
ASSERT (OptionsOpCodeHandle != NULL);
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
STRING_TOKEN (STR_BOOT_OPTION1),
0,
EFI_IFR_NUMERIC_SIZE_1,
1
);
HiiCreateOneOfOptionOpCode (
OptionsOpCodeHandle,
STRING_TOKEN (STR_BOOT_OPTION2),
0,
EFI_IFR_NUMERIC_SIZE_1,
2
);
//
// Prepare initial value for the dynamic created oneof Question
//
PrivateData->Configuration.DynamicOneof = 2;
Status = gRT->SetVariable(
VariableName,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
&PrivateData->Configuration
);
//
// Set initial vlaue of dynamic created oneof Question in Form Browser
//
Configuration = AllocateZeroPool (sizeof (DRIVER_SAMPLE_CONFIGURATION));
ASSERT (Configuration != NULL);
if (HiiGetBrowserData (&gDriverSampleFormSetGuid, VariableName, sizeof (DRIVER_SAMPLE_CONFIGURATION), (UINT8 *) Configuration)) {
Configuration->DynamicOneof = 2;
//
// Update uncommitted data of Browser
//
HiiSetBrowserData (
&gDriverSampleFormSetGuid,
VariableName,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
(UINT8 *) Configuration,
NULL
);
}
FreePool (Configuration);
HiiCreateOneOfOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
0x8001, // Question ID (or call it "key")
CONFIGURATION_VARSTORE_ID, // VarStore ID
(UINT16) DYNAMIC_ONE_OF_VAR_OFFSET, // Offset in Buffer Storage
STRING_TOKEN (STR_ONE_OF_PROMPT), // Question prompt text
STRING_TOKEN (STR_ONE_OF_HELP), // Question help text
EFI_IFR_FLAG_CALLBACK, // Question flag
EFI_IFR_NUMERIC_SIZE_1, // Data type of Question Value
OptionsOpCodeHandle, // Option Opcode list
NULL // Default Opcode is NULl
);
HiiCreateOrderedListOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
0x8002, // Question ID
CONFIGURATION_VARSTORE_ID, // VarStore ID
(UINT16) DYNAMIC_ORDERED_LIST_VAR_OFFSET, // Offset in Buffer Storage
STRING_TOKEN (STR_BOOT_OPTIONS), // Question prompt text
STRING_TOKEN (STR_BOOT_OPTIONS), // Question help text
EFI_IFR_FLAG_RESET_REQUIRED, // Question flag
0, // Ordered list flag, e.g. EFI_IFR_UNIQUE_SET
EFI_IFR_NUMERIC_SIZE_1, // Data type of Question value
5, // Maximum container
OptionsOpCodeHandle, // Option Opcode list
NULL // Default Opcode is NULl
);
HiiCreateTextOpCode (
StartOpCodeHandle,
STRING_TOKEN(STR_TEXT_SAMPLE_HELP),
STRING_TOKEN(STR_TEXT_SAMPLE_HELP),
STRING_TOKEN(STR_TEXT_SAMPLE_STRING)
);
HiiCreateDateOpCode (
StartOpCodeHandle,
0x8004,
0x0,
0x0,
STRING_TOKEN(STR_DATE_SAMPLE_HELP),
STRING_TOKEN(STR_DATE_SAMPLE_HELP),
0,
QF_DATE_STORAGE_TIME,
NULL
);
HiiCreateTimeOpCode (
StartOpCodeHandle,
0x8005,
0x0,
0x0,
STRING_TOKEN(STR_TIME_SAMPLE_HELP),
STRING_TOKEN(STR_TIME_SAMPLE_HELP),
0,
QF_TIME_STORAGE_TIME,
NULL
);
HiiCreateGotoOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
1, // Target Form ID
STRING_TOKEN (STR_GOTO_FORM1), // Prompt text
STRING_TOKEN (STR_GOTO_HELP), // Help text
0, // Question flag
0x8003 // Question ID
);
HiiUpdateForm (
PrivateData->HiiHandle[0], // HII handle
&gDriverSampleFormSetGuid, // Formset GUID
0x1234, // Form ID
StartOpCodeHandle, // Label for where to insert opcodes
EndOpCodeHandle // Replace data
);
HiiFreeOpCodeHandle (StartOpCodeHandle);
HiiFreeOpCodeHandle (OptionsOpCodeHandle);
HiiFreeOpCodeHandle (EndOpCodeHandle);
break;
default:
break;
}
}
break;
case EFI_BROWSER_ACTION_CHANGED:
switch (QuestionId) {
case 0x1237:
//
// User press "Exit now", request Browser to exit
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_EXIT;
break;
case 0x1238:
//
// User press "Save now", request Browser to save the uncommitted data.
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_SUBMIT;
break;
case 0x1241:
case 0x1246:
//
// User press "Submit current form and Exit now", request Browser to submit current form and exit
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_SUBMIT_EXIT;
break;
case 0x1242:
//
// User press "Discard current form now", request Browser to discard the uncommitted data.
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD;
break;
case 0x1243:
//
// User press "Submit current form now", request Browser to save the uncommitted data.
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_APPLY;
break;
case 0x1244:
case 0x1245:
//
// User press "Discard current form and Exit now", request Browser to discard the uncommitted data and exit.
//
*ActionRequest = EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD_EXIT;
break;
case 0x1231:
//
// 1. Check to see whether system support keyword.
//
Status = PrivateData->HiiKeywordHandler->GetData (PrivateData->HiiKeywordHandler,
L"NAMESPACE=x-UEFI-ns",
L"KEYWORD=iSCSIBootEnable",
&Progress,
&ProgressErr,
&Results
);
if (EFI_ERROR (Status)) {
do {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"",
L"This system not support this keyword!",
L"Press ENTER to continue ...",
L"",
NULL
);
} while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
Status = EFI_SUCCESS;
break;
}
//
// 2. If system support this keyword, just try to change value.
//
//
// Change value from '0' to '1' or from '1' to '0'
//
TmpStr = StrStr (Results, L"&VALUE=");
ASSERT (TmpStr != NULL);
TmpStr += StrLen (L"&VALUE=");
TmpStr++;
if (*TmpStr == L'0') {
*TmpStr = L'1';
} else {
*TmpStr = L'0';
}
//
// 3. Call the keyword handler protocol to change the value.
//
Status = PrivateData->HiiKeywordHandler->SetData (PrivateData->HiiKeywordHandler,
Results,
&Progress,
&ProgressErr
);
if (EFI_ERROR (Status)) {
do {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"",
L"Set keyword to the system failed!",
L"Press ENTER to continue ...",
L"",
NULL
);
} while (Key.UnicodeChar != CHAR_CARRIAGE_RETURN);
Status = EFI_SUCCESS;
break;
}
break;
default:
break;
}
break;
case EFI_BROWSER_ACTION_SUBMITTED:
{
if (QuestionId == 0x1250) {
//
// Sample CallBack for EFI_BROWSER_ACTION_SUBMITTED action:
// Show up a pop-up to show SUBMITTED callback has been triggered.
//
do {
CreatePopUp (
EFI_LIGHTGRAY | EFI_BACKGROUND_BLUE,
&Key,
L"",
L"EfiVarstore value has been submitted!",
L"Press ESC or ENTER to continue ...",
L"",
NULL
);
} while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
}
}
break;
default:
Status = EFI_UNSUPPORTED;
break;
}
return Status;
}
/**
Main entry for this driver.
@param ImageHandle Image handle this driver.
@param SystemTable Pointer to SystemTable.
@retval EFI_SUCESS This function always complete successfully.
**/
EFI_STATUS
EFIAPI
DriverSampleInit (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HII_HANDLE HiiHandle[2];
EFI_SCREEN_DESCRIPTOR Screen;
EFI_HII_DATABASE_PROTOCOL *HiiDatabase;
EFI_HII_STRING_PROTOCOL *HiiString;
EFI_FORM_BROWSER2_PROTOCOL *FormBrowser2;
EFI_HII_CONFIG_ROUTING_PROTOCOL *HiiConfigRouting;
EFI_CONFIG_KEYWORD_HANDLER_PROTOCOL *HiiKeywordHandler;
CHAR16 *NewString;
UINTN BufferSize;
DRIVER_SAMPLE_CONFIGURATION *Configuration;
BOOLEAN ActionFlag;
EFI_STRING ConfigRequestHdr;
EFI_STRING NameRequestHdr;
MY_EFI_VARSTORE_DATA *VarStoreConfig;
EFI_INPUT_KEY HotKey;
EDKII_FORM_BROWSER_EXTENSION_PROTOCOL *FormBrowserEx;
//
// Initialize the local variables.
//
ConfigRequestHdr = NULL;
NewString = NULL;
//
// Initialize screen dimensions for SendForm().
// Remove 3 characters from top and bottom
//
ZeroMem (&Screen, sizeof (EFI_SCREEN_DESCRIPTOR));
gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &Screen.RightColumn, &Screen.BottomRow);
Screen.TopRow = 3;
Screen.BottomRow = Screen.BottomRow - 3;
//
// Initialize driver private data
//
mPrivateData = AllocateZeroPool (sizeof (DRIVER_SAMPLE_PRIVATE_DATA));
if (mPrivateData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
mPrivateData->Signature = DRIVER_SAMPLE_PRIVATE_SIGNATURE;
mPrivateData->ConfigAccess.ExtractConfig = ExtractConfig;
mPrivateData->ConfigAccess.RouteConfig = RouteConfig;
mPrivateData->ConfigAccess.Callback = DriverCallback;
//
// Locate Hii Database protocol
//
Status = gBS->LocateProtocol (&gEfiHiiDatabaseProtocolGuid, NULL, (VOID **) &HiiDatabase);
if (EFI_ERROR (Status)) {
return Status;
}
mPrivateData->HiiDatabase = HiiDatabase;
//
// Locate HiiString protocol
//
Status = gBS->LocateProtocol (&gEfiHiiStringProtocolGuid, NULL, (VOID **) &HiiString);
if (EFI_ERROR (Status)) {
return Status;
}
mPrivateData->HiiString = HiiString;
//
// Locate Formbrowser2 protocol
//
Status = gBS->LocateProtocol (&gEfiFormBrowser2ProtocolGuid, NULL, (VOID **) &FormBrowser2);
if (EFI_ERROR (Status)) {
return Status;
}
mPrivateData->FormBrowser2 = FormBrowser2;
//
// Locate ConfigRouting protocol
//
Status = gBS->LocateProtocol (&gEfiHiiConfigRoutingProtocolGuid, NULL, (VOID **) &HiiConfigRouting);
if (EFI_ERROR (Status)) {
return Status;
}
mPrivateData->HiiConfigRouting = HiiConfigRouting;
//
// Locate keyword handler protocol
//
Status = gBS->LocateProtocol (&gEfiConfigKeywordHandlerProtocolGuid, NULL, (VOID **) &HiiKeywordHandler);
if (EFI_ERROR (Status)) {
return Status;
}
mPrivateData->HiiKeywordHandler = HiiKeywordHandler;
Status = gBS->InstallMultipleProtocolInterfaces (
&DriverHandle[0],
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath0,
&gEfiHiiConfigAccessProtocolGuid,
&mPrivateData->ConfigAccess,
NULL
);
ASSERT_EFI_ERROR (Status);
mPrivateData->DriverHandle[0] = DriverHandle[0];
//
// Publish our HII data
//
HiiHandle[0] = HiiAddPackages (
&gDriverSampleFormSetGuid,
DriverHandle[0],
DriverSampleStrings,
VfrBin,
NULL
);
if (HiiHandle[0] == NULL) {
return EFI_OUT_OF_RESOURCES;
}
mPrivateData->HiiHandle[0] = HiiHandle[0];
//
// Publish another Fromset
//
Status = gBS->InstallMultipleProtocolInterfaces (
&DriverHandle[1],
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath1,
&gEfiHiiConfigAccessProtocolGuid,
&mPrivateData->ConfigAccess,
NULL
);
ASSERT_EFI_ERROR (Status);
mPrivateData->DriverHandle[1] = DriverHandle[1];
HiiHandle[1] = HiiAddPackages (
&gDriverSampleInventoryGuid,
DriverHandle[1],
DriverSampleStrings,
InventoryBin,
NULL
);
if (HiiHandle[1] == NULL) {
DriverSampleUnload (ImageHandle);
return EFI_OUT_OF_RESOURCES;
}
mPrivateData->HiiHandle[1] = HiiHandle[1];
//
// Update the device path string.
//
NewString = ConvertDevicePathToText((EFI_DEVICE_PATH_PROTOCOL*)&mHiiVendorDevicePath0, FALSE, FALSE);
if (HiiSetString (HiiHandle[0], STRING_TOKEN (STR_DEVICE_PATH), NewString, NULL) == 0) {
DriverSampleUnload (ImageHandle);
return EFI_OUT_OF_RESOURCES;
}
if (NewString != NULL) {
FreePool (NewString);
}
//
// Very simple example of how one would update a string that is already
// in the HII database
//
NewString = L"700 Mhz";
if (HiiSetString (HiiHandle[0], STRING_TOKEN (STR_CPU_STRING2), NewString, NULL) == 0) {
DriverSampleUnload (ImageHandle);
return EFI_OUT_OF_RESOURCES;
}
HiiSetString (HiiHandle[0], 0, NewString, NULL);
//
// Initialize Name/Value name String ID
//
mPrivateData->NameStringId[0] = STR_NAME_VALUE_VAR_NAME0;
mPrivateData->NameStringId[1] = STR_NAME_VALUE_VAR_NAME1;
mPrivateData->NameStringId[2] = STR_NAME_VALUE_VAR_NAME2;
//
// Initialize configuration data
//
Configuration = &mPrivateData->Configuration;
ZeroMem (Configuration, sizeof (DRIVER_SAMPLE_CONFIGURATION));
//
// Try to read NV config EFI variable first
//
ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, VariableName, DriverHandle[0]);
ASSERT (ConfigRequestHdr != NULL);
NameRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, NULL, DriverHandle[0]);
ASSERT (NameRequestHdr != NULL);
BufferSize = sizeof (DRIVER_SAMPLE_CONFIGURATION);
Status = gRT->GetVariable (VariableName, &gDriverSampleFormSetGuid, NULL, &BufferSize, Configuration);
if (EFI_ERROR (Status)) {
//
// Store zero data Buffer Storage to EFI variable
//
Status = gRT->SetVariable(
VariableName,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (DRIVER_SAMPLE_CONFIGURATION),
Configuration
);
if (EFI_ERROR (Status)) {
DriverSampleUnload (ImageHandle);
return Status;
}
//
// EFI variable for NV config doesn't exit, we should build this variable
// based on default values stored in IFR
//
ActionFlag = HiiSetToDefaults (NameRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
} else {
//
// EFI variable does exist and Validate Current Setting
//
ActionFlag = HiiValidateSettings (NameRequestHdr);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
ActionFlag = HiiValidateSettings (ConfigRequestHdr);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
}
FreePool (ConfigRequestHdr);
//
// Initialize efi varstore configuration data
//
VarStoreConfig = &mPrivateData->VarStoreConfig;
ZeroMem (VarStoreConfig, sizeof (MY_EFI_VARSTORE_DATA));
ConfigRequestHdr = HiiConstructConfigHdr (&gDriverSampleFormSetGuid, MyEfiVar, DriverHandle[0]);
ASSERT (ConfigRequestHdr != NULL);
BufferSize = sizeof (MY_EFI_VARSTORE_DATA);
Status = gRT->GetVariable (MyEfiVar, &gDriverSampleFormSetGuid, NULL, &BufferSize, VarStoreConfig);
if (EFI_ERROR (Status)) {
//
// Store zero data to EFI variable Storage.
//
Status = gRT->SetVariable(
MyEfiVar,
&gDriverSampleFormSetGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
sizeof (MY_EFI_VARSTORE_DATA),
VarStoreConfig
);
if (EFI_ERROR (Status)) {
DriverSampleUnload (ImageHandle);
return Status;
}
//
// EFI variable for NV config doesn't exit, we should build this variable
// based on default values stored in IFR
//
ActionFlag = HiiSetToDefaults (ConfigRequestHdr, EFI_HII_DEFAULT_CLASS_STANDARD);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
} else {
//
// EFI variable does exist and Validate Current Setting
//
ActionFlag = HiiValidateSettings (ConfigRequestHdr);
if (!ActionFlag) {
DriverSampleUnload (ImageHandle);
return EFI_INVALID_PARAMETER;
}
}
FreePool (ConfigRequestHdr);
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
EfiEventEmptyFunction,
NULL,
&gEfiIfrRefreshIdOpGuid,
&mEvent
);
ASSERT_EFI_ERROR (Status);
//
// Example of how to use BrowserEx protocol to register HotKey.
//
Status = gBS->LocateProtocol (&gEdkiiFormBrowserExProtocolGuid, NULL, (VOID **) &FormBrowserEx);
if (!EFI_ERROR (Status)) {
//
// First unregister the default hot key F9 and F10.
//
HotKey.UnicodeChar = CHAR_NULL;
HotKey.ScanCode = SCAN_F9;
FormBrowserEx->RegisterHotKey (&HotKey, 0, 0, NULL);
HotKey.ScanCode = SCAN_F10;
FormBrowserEx->RegisterHotKey (&HotKey, 0, 0, NULL);
//
// Register the default HotKey F9 and F10 again.
//
HotKey.ScanCode = SCAN_F10;
NewString = HiiGetString (mPrivateData->HiiHandle[0], STRING_TOKEN (FUNCTION_TEN_STRING), NULL);
ASSERT (NewString != NULL);
FormBrowserEx->RegisterHotKey (&HotKey, BROWSER_ACTION_SUBMIT, 0, NewString);
HotKey.ScanCode = SCAN_F9;
NewString = HiiGetString (mPrivateData->HiiHandle[0], STRING_TOKEN (FUNCTION_NINE_STRING), NULL);
ASSERT (NewString != NULL);
FormBrowserEx->RegisterHotKey (&HotKey, BROWSER_ACTION_DEFAULT, EFI_HII_DEFAULT_CLASS_STANDARD, NewString);
}
//
// In default, this driver is built into Flash device image,
// the following code doesn't run.
//
//
// Example of how to display only the item we sent to HII
// When this driver is not built into Flash device image,
// it need to call SendForm to show front page by itself.
//
if (DISPLAY_ONLY_MY_ITEM <= 1) {
//
// Have the browser pull out our copy of the data, and only display our data
//
Status = FormBrowser2->SendForm (
FormBrowser2,
&(HiiHandle[DISPLAY_ONLY_MY_ITEM]),
1,
NULL,
0,
NULL,
NULL
);
HiiRemovePackages (HiiHandle[0]);
HiiRemovePackages (HiiHandle[1]);
}
return EFI_SUCCESS;
}
/**
Unloads the application and its installed protocol.
@param[in] ImageHandle Handle that identifies the image to be unloaded.
@retval EFI_SUCCESS The image has been unloaded.
**/
EFI_STATUS
EFIAPI
DriverSampleUnload (
IN EFI_HANDLE ImageHandle
)
{
UINTN Index;
ASSERT (mPrivateData != NULL);
if (DriverHandle[0] != NULL) {
gBS->UninstallMultipleProtocolInterfaces (
DriverHandle[0],
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath0,
&gEfiHiiConfigAccessProtocolGuid,
&mPrivateData->ConfigAccess,
NULL
);
DriverHandle[0] = NULL;
}
if (DriverHandle[1] != NULL) {
gBS->UninstallMultipleProtocolInterfaces (
DriverHandle[1],
&gEfiDevicePathProtocolGuid,
&mHiiVendorDevicePath1,
&gEfiHiiConfigAccessProtocolGuid,
&mPrivateData->ConfigAccess,
NULL
);
DriverHandle[1] = NULL;
}
if (mPrivateData->HiiHandle[0] != NULL) {
HiiRemovePackages (mPrivateData->HiiHandle[0]);
}
if (mPrivateData->HiiHandle[1] != NULL) {
HiiRemovePackages (mPrivateData->HiiHandle[1]);
}
for (Index = 0; Index < NAME_VALUE_NAME_NUMBER; Index++) {
if (mPrivateData->NameValueName[Index] != NULL) {
FreePool (mPrivateData->NameValueName[Index]);
}
}
FreePool (mPrivateData);
mPrivateData = NULL;
gBS->CloseEvent (mEvent);
return EFI_SUCCESS;
}
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