Add two new methods to get default value, also add sample code in sample driver.

Add sample code to use time opcode

Signed-off-by:  ydong10
Reviewed-by: lgao4


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11688 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ydong10
2011-05-20 02:58:35 +00:00
parent d4cb06e122
commit ee31d1be52
7 changed files with 613 additions and 5 deletions

View File

@@ -334,6 +334,277 @@ LoadNameValueNames (
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 = (((1 + StrLen (ConfigHdr) + 8 + 4) + (8 + 4 + 7 + 4 + 7 + 4)) * 2 + StrLen (Result)) * sizeof (CHAR16);
StringPtr = AllocateZeroPool (NewLen);
if (StringPtr == NULL) {
return NULL;
}
TmpStr = StringPtr;
if (Result != NULL) {
StrCpy (StringPtr, 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;
EFI_STRING TmpPtr;
UINTN Length;
UINT8 *TmpBuffer;
UINTN Offset;
UINTN Width;
UINTN BlockSize;
UINTN ValueOffset;
UINTN ValueWidth;
EFI_STATUS Status;
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) {
//
// Back up the header of one <BlockName>
//
TmpPtr = StringPtr;
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 Width
//
Status = GetValueOfNumber (StringPtr, &TmpBuffer, &Length);
if (EFI_ERROR (Status)) {
return;
}
StringPtr += Length;
//
// Calculate Value and convert it to hex string.
//
if (Offset + Width > BlockSize) {
return;
}
if (Offset <= ValueOffset && Offset + Width >= ValueOffset + ValueWidth) {
*RequestResult = CreateAltCfgString(*RequestResult, ConfigRequestHdr, Offset, Width);
return;
}
}
}
/**
This function allows a caller to extract the current configuration for one
or more named elements from the target driver.
@@ -429,6 +700,7 @@ ExtractConfig (
AllocatedRequest = TRUE;
UnicodeSPrint (ConfigRequest, Size, L"%s&OFFSET=0&WIDTH=%016LX", ConfigRequestHdr, (UINT64)BufferSize);
FreePool (ConfigRequestHdr);
ConfigRequestHdr = NULL;
} else {
//
// Check routing data in <ConfigHdr>.
@@ -557,6 +829,8 @@ ExtractConfig (
Results,
Progress
);
ConfigRequestHdr = HiiConstructConfigHdr (&mFormSetGuid, VariableName, PrivateData->DriverHandle[0]);
AppendAltCfgString(Results, ConfigRequestHdr);
}
//
@@ -565,6 +839,10 @@ ExtractConfig (
if (AllocatedRequest) {
FreePool (ConfigRequest);
}
if (ConfigRequestHdr != NULL) {
FreePool (ConfigRequestHdr);
}
//
// Set Progress string to the original request string.
//
@@ -939,6 +1217,34 @@ DriverCallback (
}
break;
case EFI_BROWSER_ACTION_DEFAULT_STANDARD:
{
switch (QuestionId) {
case 0x1240:
Value->u8 = DEFAULT_CLASS_STANDARD_VALUE;
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) {