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/** @file
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "idebus.h"
#define IDE_BUS_DIAGNOSTIC_ERROR L"PCI IDE/ATAPI Driver Diagnostics Failed"
//
// EFI Driver Diagnostics Protocol
//
EFI_DRIVER_DIAGNOSTICS_PROTOCOL gIDEBusDriverDiagnostics = {
IDEBusDriverDiagnosticsRunDiagnostics,
"eng"
};
/**
Runs diagnostics on a controller.
@param This A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL
instance.
@param ControllerHandle The handle of the controller to run diagnostics on.
@param ChildHandle The handle of the child controller to run diagnostics on
This is an optional parameter that may be NULL. It will
be NULL for device drivers. It will also be NULL for a
bus drivers that wish to run diagnostics on the bus
controller. It will not be NULL for a bus driver that
wishes to run diagnostics on one of its child
controllers.
@param DiagnosticType Indicates type of diagnostics to perform on the
controller specified by ControllerHandle and ChildHandle.
See "Related Definitions" for the list of supported
types.
@param Language A pointer to a three character ISO 639-2 language
identifier. This is the language in which the optional
error message should be returned in Buffer, and it must
match one of the languages specified in
SupportedLanguages. The number of languages supported by
a driver is up to the driver writer.
@param ErrorType A GUID that defines the format of the data returned in
Buffer.
@param BufferSize The size, in bytes, of the data returned in Buffer.
@param Buffer A buffer that contains a Null-terminated Unicode string
plus some additional data whose format is defined by
ErrorType. Buffer is allocated by this function with
AllocatePool(), and it is the caller's responsibility
to free it with a call to FreePool().
@retval EFI_SUCCESS The controller specified by ControllerHandle and
ChildHandle passed the diagnostic.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ErrorType is NULL.
@retval EFI_INVALID_PARAMETER BufferType is NULL.
@retval EFI_INVALID_PARAMETER Buffer is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
running diagnostics for the controller specified
by ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
type of diagnostic specified by DiagnosticType.
@retval EFI_UNSUPPORTED The driver specified by This does not support the
language specified by Language.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to complete
the diagnostics.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to return
the status information in ErrorType, BufferSize,
and Buffer.
@retval EFI_DEVICE_ERROR The controller specified by ControllerHandle and
ChildHandle did not pass the diagnostic.
**/
EFI_STATUS
IDEBusDriverDiagnosticsRunDiagnostics (
IN EFI_DRIVER_DIAGNOSTICS_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN EFI_DRIVER_DIAGNOSTIC_TYPE DiagnosticType,
IN CHAR8 *Language,
OUT EFI_GUID **ErrorType,
OUT UINTN *BufferSize,
OUT CHAR16 **Buffer
)
{
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_BLOCK_IO_PROTOCOL *BlkIo;
IDE_BLK_IO_DEV *IdeBlkIoDevice;
UINT32 VendorDeviceId;
VOID *BlockBuffer;
*ErrorType = NULL;
*BufferSize = 0;
if (ChildHandle == NULL) {
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiCallerIdGuid,
NULL,
gIDEBusDriverBinding.DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
Status = gBS->OpenProtocol (
ControllerHandle,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
gIDEBusDriverBinding.DriverBindingHandle,
ControllerHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
//
// Use services of PCI I/O Protocol to test the PCI IDE/ATAPI Controller
// The following test simply reads the Device ID and Vendor ID.
// It should never fail. A real test would perform more advanced
// diagnostics.
//
Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint32, 0, 1, &VendorDeviceId);
if (EFI_ERROR (Status) || VendorDeviceId == 0xffffffff) {
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
Status = gBS->OpenProtocol (
ChildHandle,
&gEfiBlockIoProtocolGuid,
(VOID **) &BlkIo,
gIDEBusDriverBinding.DriverBindingHandle,
ChildHandle,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);
//
// Use services available from IdeBlkIoDevice to test the IDE/ATAPI device
//
Status = gBS->AllocatePool (
EfiBootServicesData,
IdeBlkIoDevice->BlkMedia.BlockSize,
(VOID **) &BlockBuffer
);
if (EFI_ERROR (Status)) {
return Status;
}
Status = IdeBlkIoDevice->BlkIo.ReadBlocks (
&IdeBlkIoDevice->BlkIo,
IdeBlkIoDevice->BlkMedia.MediaId,
0,
IdeBlkIoDevice->BlkMedia.BlockSize,
BlockBuffer
);
if (EFI_ERROR (Status)) {
*ErrorType = &gEfiCallerIdGuid;
*BufferSize = sizeof (IDE_BUS_DIAGNOSTIC_ERROR);
Status = gBS->AllocatePool (
EfiBootServicesData,
(UINTN) (*BufferSize),
(VOID **) Buffer
);
if (EFI_ERROR (Status)) {
return Status;
}
CopyMem (*Buffer, IDE_BUS_DIAGNOSTIC_ERROR, *BufferSize);
Status = EFI_DEVICE_ERROR;
}
gBS->FreePool (BlockBuffer);
return Status;
}
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