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| author | ydong10 <ydong10@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-04-01 07:28:09 +0000 |
|---|---|---|
| committer | ydong10 <ydong10@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-04-01 07:28:09 +0000 |
| commit | c1e2752c99eacd81b4860091947584c8190914a2 (patch) | |
| tree | 6b3b72f7407f22a8275ce765d648206de13ae275 /IntelFrameworkModulePkg/Library | |
| parent | e8b4eb041777a361c2fb81b34c8ab65951ff8c46 (diff) | |
| download | edk2-c1e2752c99eacd81b4860091947584c8190914a2.tar.gz edk2-c1e2752c99eacd81b4860091947584c8190914a2.tar.bz2 edk2-c1e2752c99eacd81b4860091947584c8190914a2.zip | |
When transfer from Unicode to hex number, current code only consider the 0-9 case, not include the A-F case, now update code to consider all.
Signed-off-by: Dong Eric <eric.dong@intel.com>
Reviewed-by: Ni Ruiyu <ruiyu.ni@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13159 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'IntelFrameworkModulePkg/Library')
| -rw-r--r-- | IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c index 904e968db9..15a47e1917 100644 --- a/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c +++ b/IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c @@ -481,6 +481,30 @@ StrSizeEx ( }
/**
+ Convert a single character to number.
+ It assumes the input Char is in the scope of L'0' ~ L'9' and L'A' ~ L'F'
+
+ @param Char The input char which need to change to a hex number.
+
+**/
+UINTN
+CharToUint (
+ IN CHAR16 Char
+ )
+{
+ if ((Char >= L'0') && (Char <= L'9')) {
+ return (UINTN) (Char - L'0');
+ }
+
+ if ((Char >= L'A') && (Char <= L'F')) {
+ return (UINTN) (Char - L'A' + 0xA);
+ }
+
+ ASSERT (FALSE);
+ return 0;
+}
+
+/**
Build the boot#### or driver#### option from the VariableName, the
build boot#### or driver#### will also be linked to BdsCommonOptionList.
@@ -613,11 +637,11 @@ BdsLibVariableToOption ( // Unicode stream to ASCII without any loss in meaning.
//
if (*VariableName == 'B') {
- NumOff = (UINT8) (sizeof (L"Boot") / sizeof(CHAR16) - 1);
- Option->BootCurrent = (UINT16) ((VariableName[NumOff] -'0') * 0x1000);
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+1]-'0') * 0x100));
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+2]-'0') * 0x10));
- Option->BootCurrent = (UINT16) (Option->BootCurrent + ((VariableName[NumOff+3]-'0')));
+ NumOff = (UINT8) (sizeof (L"Boot") / sizeof (CHAR16) - 1);
+ Option->BootCurrent = (UINT16) (CharToUint (VariableName[NumOff+0]) * 0x1000)
+ + (UINT16) (CharToUint (VariableName[NumOff+1]) * 0x100)
+ + (UINT16) (CharToUint (VariableName[NumOff+2]) * 0x10)
+ + (UINT16) (CharToUint (VariableName[NumOff+3]) * 0x1);
}
//
// Insert active entry to BdsDeviceList
|