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OvmfPkg/LsiScsiDxe: Probe PCI devices and look for LsiScsi

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Implement LsiScsiControllerSupported() to probe the PCI ID and look for
LSI 53C895A.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20200717061130.8881-5-glin@suse.com>
This commit is contained in:
Gary Lin
2020-07-17 14:11:23 +08:00
committed by mergify[bot]
parent 386ca8abf7
commit 79f802a50e
3 changed files with 73 additions and 1 deletions
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48
OvmfPkg/LsiScsiDxe/LsiScsi.c
View File

@@ -9,7 +9,12 @@
**/
#include <IndustryStandard/LsiScsi.h>
#include <IndustryStandard/Pci.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Protocol/PciIo.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Uefi/UefiSpec.h>
#include "LsiScsi.h"
@@ -31,7 +36,48 @@ LsiScsiControllerSupported (
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
)
{
return EFI_UNSUPPORTED;
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
PCI_TYPE00 Pci;
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiPciIoProtocolGuid,
(VOID **)&PciIo,
This->DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = PciIo->Pci.Read (
PciIo,
EfiPciIoWidthUint32,
0,
sizeof (Pci) / sizeof (UINT32),
&Pci
);
if (EFI_ERROR (Status)) {
goto Done;
}
if (Pci.Hdr.VendorId == LSI_LOGIC_PCI_VENDOR_ID &&
Pci.Hdr.DeviceId == LSI_53C895A_PCI_DEVICE_ID) {
Status = EFI_SUCCESS;
} else {
Status = EFI_UNSUPPORTED;
}
Done:
gBS->CloseProtocol (
ControllerHandle,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
ControllerHandle
);
return Status;
}
EFI_STATUS