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IntelFrameworkModulePkg/LegacyBios: Get COM base from SerialIo parent

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
This commit is contained in:
Ruiyu Ni
2016-06-12 15:07:17 +08:00
parent aa7f11db4d
commit faef695239
3 changed files with 15 additions and 8 deletions
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17
IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c
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@ -49,8 +49,7 @@ LegacyBiosBuildSioDataFromIsaIo (
UINTN EntryCount;
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfoBuffer;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_SERIAL_IO_PROTOCOL *SerialIo;
//
// Get the list of ISA controllers in the system
@ -137,10 +136,16 @@ LegacyBiosBuildSioDataFromIsaIo (
// We want resource for legacy even if no 32-bit driver installed
//
for (ChildIndex = 0; ChildIndex < EntryCount; ChildIndex++) {
SioSerial = &SioPtr->Serial[ResourceList->Device.UID];
SioSerial->Address = (UINT16) IoResource->StartRange;
SioSerial->Irq = (UINT8) InterruptResource->StartRange;
SioSerial->Mode = DEVICE_SERIAL_MODE_NORMAL | DEVICE_SERIAL_MODE_DUPLEX_HALF;
if ((OpenInfoBuffer[ChildIndex].Attributes & EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER) != 0) {
Status = gBS->HandleProtocol (OpenInfoBuffer[ChildIndex].AgentHandle, &gEfiSerialIoProtocolGuid, (VOID **) &SerialIo);
if (!EFI_ERROR (Status)) {
SioSerial = &SioPtr->Serial[ResourceList->Device.UID];
SioSerial->Address = (UINT16) IoResource->StartRange;
SioSerial->Irq = (UINT8) InterruptResource->StartRange;
SioSerial->Mode = DEVICE_SERIAL_MODE_NORMAL | DEVICE_SERIAL_MODE_DUPLEX_HALF;
break;
}
}
}
FreePool (OpenInfoBuffer);