diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c index 9844d64fd6..a27a477eaa 100644 --- a/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c +++ b/IntelFrameworkModulePkg/Csm/LegacyBiosDxe/LegacySio.c @@ -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);
|