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OvmfPkg/LsiScsiDxe: Probe PCI devices and look for LsiScsi
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>
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OvmfPkg/Include/IndustryStandard/LsiScsi.h
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OvmfPkg/Include/IndustryStandard/LsiScsi.h
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@ -0,0 +1,20 @@
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/** @file
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Macros and type definitions for LSI 53C895A SCSI devices.
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Copyright (C) 2020, SUSE LLC.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _LSI_SCSI_H_
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#define _LSI_SCSI_H_
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//
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// Device ID
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//
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#define LSI_LOGIC_PCI_VENDOR_ID 0x1000
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#define LSI_53C895A_PCI_DEVICE_ID 0x0012
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#endif // _LSI_SCSI_H_
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@ -9,7 +9,12 @@
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**/
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**/
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#include <IndustryStandard/LsiScsi.h>
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#include <IndustryStandard/Pci.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiLib.h>
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#include <Protocol/PciIo.h>
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#include <Protocol/PciRootBridgeIo.h>
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#include <Uefi/UefiSpec.h>
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#include <Uefi/UefiSpec.h>
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#include "LsiScsi.h"
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#include "LsiScsi.h"
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@ -31,7 +36,48 @@ LsiScsiControllerSupported (
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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)
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{
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{
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return EFI_UNSUPPORTED;
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EFI_STATUS Status;
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EFI_PCI_IO_PROTOCOL *PciIo;
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PCI_TYPE00 Pci;
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiPciIoProtocolGuid,
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(VOID **)&PciIo,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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Status = PciIo->Pci.Read (
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PciIo,
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EfiPciIoWidthUint32,
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0,
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sizeof (Pci) / sizeof (UINT32),
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&Pci
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);
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if (EFI_ERROR (Status)) {
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goto Done;
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}
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if (Pci.Hdr.VendorId == LSI_LOGIC_PCI_VENDOR_ID &&
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Pci.Hdr.DeviceId == LSI_53C895A_PCI_DEVICE_ID) {
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Status = EFI_SUCCESS;
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} else {
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Status = EFI_UNSUPPORTED;
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}
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Done:
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gBS->CloseProtocol (
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ControllerHandle,
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&gEfiPciIoProtocolGuid,
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This->DriverBindingHandle,
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ControllerHandle
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);
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return Status;
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}
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}
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EFI_STATUS
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EFI_STATUS
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@ -22,7 +22,13 @@
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[Packages]
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[Packages]
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MdePkg/MdePkg.dec
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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[LibraryClasses]
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BaseLib
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UefiBootServicesTableLib
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UefiDriverEntryPoint
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UefiDriverEntryPoint
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UefiLib
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UefiLib
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[Protocols]
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gEfiPciIoProtocolGuid ## TO_START
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