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MdeModulePkg/Ufs: Fix UFS flag read from Query Resp UPIU

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As per UFS spec, flag value is stored in the 'last byte' of value
field. Existing code is attempting to read first byte.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2208

Test: Verified the Fix by sending command to set fPowerOnWPEn flag
and then reading it to verify the set value.

Cc: Ray Ni <ray.ni@intel.com>

Signed-off-by: Sachin Agrawal <sachin.agrawal@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Agrawal, Sachin 2019-09-23 19:48:17 +08:00 committed by Hao A Wu
parent 4d05a4b709
commit cd70b1a71d
2 changed files with 8 additions and 2 deletions
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5
MdeModulePkg/Bus/Ufs/UfsBlockIoPei/UfsHci.c
View File

@ -977,7 +977,10 @@ UfsRwFlags (
}
if (Trd->Ocs == 0) {
*Value = (UINT8)QueryResp->Tsf.Value;
//
// The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
//
*Value = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
} else {
Status = EFI_DEVICE_ERROR;
}

5
MdeModulePkg/Bus/Ufs/UfsPassThruDxe/UfsPassThruHci.c
View File

@ -863,7 +863,10 @@ UfsGetReturnDataFromQueryResponse (
case UtpQueryFuncOpcodeSetFlag:
case UtpQueryFuncOpcodeClrFlag:
case UtpQueryFuncOpcodeTogFlag:
CopyMem (Packet->DataBuffer, &QueryResp->Tsf.Value, sizeof (UINT8));
//
// The 'FLAG VALUE' field is at byte offset 3 of QueryResp->Tsf.Value
//
*((UINT8*)(Packet->DataBuffer)) = *((UINT8*)&(QueryResp->Tsf.Value) + 3);
break;
case UtpQueryFuncOpcodeRdAttr:
case UtpQueryFuncOpcodeWrAttr: