tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
OvmfPkg/Include/IndustryStandard/LsiScsi.h Normal file
View File

@ -0,0 +1,20 @@
/** @file
Macros and type definitions for LSI 53C895A SCSI devices.
Copyright (C) 2020, SUSE LLC.
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _LSI_SCSI_H_
#define _LSI_SCSI_H_
//
// Device ID
//
#define LSI_LOGIC_PCI_VENDOR_ID 0x1000
#define LSI_53C895A_PCI_DEVICE_ID 0x0012
#endif // _LSI_SCSI_H_

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

6
OvmfPkg/LsiScsiDxe/LsiScsiDxe.inf
View File

@ -22,7 +22,13 @@
[Packages]
MdePkg/MdePkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
BaseLib
UefiBootServicesTableLib
UefiDriverEntryPoint
UefiLib
[Protocols]
gEfiPciIoProtocolGuid ## TO_START