diff options
Diffstat (limited to 'UnixPkg/UnixBlockIoDxe/DriverDiagnostics.c')
| -rw-r--r-- | UnixPkg/UnixBlockIoDxe/DriverDiagnostics.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/UnixPkg/UnixBlockIoDxe/DriverDiagnostics.c b/UnixPkg/UnixBlockIoDxe/DriverDiagnostics.c new file mode 100644 index 0000000000..0e9a32c66a --- /dev/null +++ b/UnixPkg/UnixBlockIoDxe/DriverDiagnostics.c @@ -0,0 +1,187 @@ +/*++
+
+Copyright (c) 2004 - 2005, 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.
+
+Module Name:
+
+ DriverDiagnostics.c
+
+Abstract:
+
+--*/
+
+#include "UnixBlockIo.h"
+
+//
+// EFI Driver Diagnostics Functions
+//
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverDiagnosticsRunDiagnostics (
+ 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 Driver Diagnostics Protocol
+//
+EFI_DRIVER_DIAGNOSTICS_PROTOCOL gUnixBlockIoDriverDiagnostics = {
+ UnixBlockIoDriverDiagnosticsRunDiagnostics,
+ LANGUAGESUPPORTED
+};
+
+EFI_STATUS
+EFIAPI
+UnixBlockIoDriverDiagnosticsRunDiagnostics (
+ 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
+ )
+/*++
+
+ Routine Description:
+ Runs diagnostics on a controller.
+
+ Arguments:
+ This - A pointer to the EFI_DRIVER_DIAGNOSTICS_PROTOCOL instance.
+ ControllerHandle - The handle of the controller to run diagnostics on.
+ 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.
+ DiagnosticType - Indicates type of diagnostics to perform on the controller
+ specified by ControllerHandle and ChildHandle. See
+ "Related Definitions" for the list of supported types.
+ 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.
+ ErrorType - A GUID that defines the format of the data returned in
+ Buffer.
+ BufferSize - The size, in bytes, of the data returned in Buffer.
+ 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().
+
+ Returns:
+ EFI_SUCCESS - The controller specified by ControllerHandle and
+ ChildHandle passed the diagnostic.
+ EFI_INVALID_PARAMETER - ControllerHandle is not a valid EFI_HANDLE.
+ EFI_INVALID_PARAMETER - ChildHandle is not NULL and it is not a valid
+ EFI_HANDLE.
+ EFI_INVALID_PARAMETER - Language is NULL.
+ EFI_INVALID_PARAMETER - ErrorType is NULL.
+ EFI_INVALID_PARAMETER - BufferType is NULL.
+ EFI_INVALID_PARAMETER - Buffer is NULL.
+ EFI_UNSUPPORTED - The driver specified by This does not support
+ running diagnostics for the controller specified
+ by ControllerHandle and ChildHandle.
+ EFI_UNSUPPORTED - The driver specified by This does not support the
+ type of diagnostic specified by DiagnosticType.
+ EFI_UNSUPPORTED - The driver specified by This does not support the
+ language specified by Language.
+ EFI_OUT_OF_RESOURCES - There are not enough resources available to complete
+ the diagnostics.
+ EFI_OUT_OF_RESOURCES - There are not enough resources available to return
+ the status information in ErrorType, BufferSize,
+ and Buffer.
+ EFI_DEVICE_ERROR - The controller specified by ControllerHandle and
+ ChildHandle did not pass the diagnostic.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_BLOCK_IO_PROTOCOL *BlockIo;
+ CHAR8 *SupportedLanguage;
+
+ if (Language == NULL ||
+ ErrorType == NULL ||
+ Buffer == NULL ||
+ ControllerHandle == NULL ||
+ BufferSize == NULL) {
+
+ return EFI_INVALID_PARAMETER;
+ }
+
+ SupportedLanguage = This->SupportedLanguages;
+
+ Status = EFI_UNSUPPORTED;
+ while (*SupportedLanguage != 0) {
+ if (AsciiStrnCmp (Language, SupportedLanguage, 3)) {
+ Status = EFI_SUCCESS;
+ break;
+ }
+
+ SupportedLanguage += 3;
+ }
+
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ *ErrorType = NULL;
+ *BufferSize = 0;
+ if (DiagnosticType != EfiDriverDiagnosticTypeStandard) {
+ *ErrorType = &gEfiBlockIoProtocolGuid;
+ *BufferSize = 0x60;
+ gBS->AllocatePool (EfiBootServicesData, (UINTN) (*BufferSize), + (void *)Buffer);
+ CopyMem (*Buffer, L"Unix Block I/O Driver Diagnostics Failed\n", *BufferSize);
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ // Validate controller handle
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiUnixIoProtocolGuid,
+ (void *)&BlockIo,
+ gUnixBlockIoDriverBinding.DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (!EFI_ERROR (Status)) {
+ gBS->CloseProtocol (
+ ControllerHandle,
+ &gEfiUnixIoProtocolGuid,
+ gUnixBlockIoDriverBinding.DriverBindingHandle,
+ ControllerHandle
+ );
+
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Status == EFI_UNSUPPORTED) {
+ return Status;
+ } else if (Status != EFI_ALREADY_STARTED) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return EFI_SUCCESS;
+}
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