diff options
Diffstat (limited to 'ArmPkg/Universal/MmcDxe/Diagnostics.c')
| -rw-r--r-- | ArmPkg/Universal/MmcDxe/Diagnostics.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/ArmPkg/Universal/MmcDxe/Diagnostics.c b/ArmPkg/Universal/MmcDxe/Diagnostics.c new file mode 100644 index 0000000..a477135 --- /dev/null +++ b/ArmPkg/Universal/MmcDxe/Diagnostics.c @@ -0,0 +1,215 @@ +/** @file
+ Diagnostics Protocol implementation for the MMC DXE driver
+
+ Copyright (c) 2011, ARM Limited. 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 <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+
+#include "Mmc.h"
+
+#define DIAGNOSTIC_LOGBUFFER_MAXCHAR 1024
+
+CHAR16* mLogBuffer = NULL;
+UINTN mLogRemainChar = 0;
+
+CHAR16* DiagnosticInitLog(UINTN MaxBufferChar) {
+ mLogRemainChar = MaxBufferChar;
+ mLogBuffer = AllocatePool ((UINTN)MaxBufferChar * sizeof(CHAR16));
+ return mLogBuffer;
+}
+
+UINTN DiagnosticLog(CONST CHAR16* Str) {
+ UINTN len = StrLen (Str);
+ if (len <= mLogRemainChar) {
+ mLogRemainChar -= len;
+ StrCpy (mLogBuffer, Str);
+ mLogBuffer += len;
+ return len;
+ } else {
+ return 0;
+ }
+}
+
+VOID GenerateRandomBuffer(VOID* Buffer, UINTN BufferSize) {
+ UINT64 i;
+ UINT64* Buffer64 = (UINT64*)Buffer;
+
+ for (i = 0; i < (BufferSize >> 3); i++) {
+ *Buffer64 = i | (~i << 32);
+ Buffer64++;
+ }
+}
+
+BOOLEAN CompareBuffer(VOID *BufferA, VOID *BufferB, UINTN BufferSize) {
+ UINTN i;
+ UINT64* BufferA64 = (UINT64*)BufferA;
+ UINT64* BufferB64 = (UINT64*)BufferB;
+
+ for (i = 0; i < (BufferSize >> 3); i++) {
+ if (*BufferA64 != *BufferB64) {
+ DEBUG((EFI_D_ERROR, "CompareBuffer: Error at %i", i));
+ DEBUG((EFI_D_ERROR, "(0x%lX) != (0x%lX)\n", *BufferA64, *BufferB64));
+ return FALSE;
+ }
+ BufferA64++;
+ BufferB64++;
+ }
+ return TRUE;
+}
+
+EFI_STATUS MmcReadWriteDataTest(MMC_HOST_INSTANCE *MmcHostInstance, EFI_LBA Lba, UINTN BufferSize) {
+ VOID *BackBuffer;
+ VOID *WriteBuffer;
+ VOID *ReadBuffer;
+ EFI_STATUS Status;
+
+ // Check if a Media is Present
+ if (!MmcHostInstance->BlockIo.Media->MediaPresent) {
+ DiagnosticLog(L"ERROR: No Media Present\n");
+ return EFI_NO_MEDIA;
+ }
+
+ if (MmcHostInstance->State != MmcTransferState) {
+ DiagnosticLog(L"ERROR: Not ready for Transfer state\n");
+ return EFI_NOT_READY;
+ }
+
+ BackBuffer = AllocatePool(BufferSize);
+ WriteBuffer = AllocatePool(BufferSize);
+ ReadBuffer = AllocatePool(BufferSize);
+
+ // Read (and save) buffer at a specific location
+ Status = MmcReadBlocks (&(MmcHostInstance->BlockIo), MmcHostInstance->BlockIo.Media->MediaId,Lba,BufferSize,BackBuffer);
+ if (Status != EFI_SUCCESS) {
+ DiagnosticLog(L"ERROR: Fail to Read Block (1)\n");
+ return Status;
+ }
+
+ // Write buffer at the same location
+ GenerateRandomBuffer(WriteBuffer,BufferSize);
+ Status = MmcWriteBlocks (&(MmcHostInstance->BlockIo), MmcHostInstance->BlockIo.Media->MediaId,Lba,BufferSize,WriteBuffer);
+ if (Status != EFI_SUCCESS) {
+ DiagnosticLog(L"ERROR: Fail to Write Block (1)\n");
+ return Status;
+ }
+
+ // Read the buffer at the same location
+ Status = MmcReadBlocks (&(MmcHostInstance->BlockIo), MmcHostInstance->BlockIo.Media->MediaId,Lba,BufferSize,ReadBuffer);
+ if (Status != EFI_SUCCESS) {
+ DiagnosticLog(L"ERROR: Fail to Read Block (2)\n");
+ return Status;
+ }
+
+ // Check that is conform
+ if (!CompareBuffer(ReadBuffer,WriteBuffer,BufferSize)) {
+ DiagnosticLog(L"ERROR: Fail to Read/Write Block (1)\n");
+ return EFI_INVALID_PARAMETER;
+ }
+
+ // Restore content at the original location
+ Status = MmcWriteBlocks (&(MmcHostInstance->BlockIo), MmcHostInstance->BlockIo.Media->MediaId,Lba,BufferSize,BackBuffer);
+ if (Status != EFI_SUCCESS) {
+ DiagnosticLog(L"ERROR: Fail to Write Block (2)\n");
+ return Status;
+ }
+
+ // Read the restored content
+ Status = MmcReadBlocks (&(MmcHostInstance->BlockIo), MmcHostInstance->BlockIo.Media->MediaId,Lba,BufferSize,ReadBuffer);
+ if (Status != EFI_SUCCESS) {
+ DiagnosticLog(L"ERROR: Fail to Read Block (3)\n");
+ return Status;
+ }
+
+ // Check the content is correct
+ if (!CompareBuffer(ReadBuffer,BackBuffer,BufferSize)) {
+ DiagnosticLog(L"ERROR: Fail to Read/Write Block (2)\n");
+ return EFI_INVALID_PARAMETER;
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+MmcDriverDiagnosticsRunDiagnostics (
+ 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
+ )
+{
+ LIST_ENTRY *CurrentLink;
+ MMC_HOST_INSTANCE *MmcHostInstance;
+ EFI_STATUS Status;
+
+ if (Language == NULL ||
+ ErrorType == NULL ||
+ Buffer == NULL ||
+ ControllerHandle == NULL ||
+ BufferSize == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Status = EFI_SUCCESS;
+ *ErrorType = NULL;
+ *BufferSize = DIAGNOSTIC_LOGBUFFER_MAXCHAR;
+ *Buffer = DiagnosticInitLog(DIAGNOSTIC_LOGBUFFER_MAXCHAR);
+
+ DiagnosticLog(L"MMC Driver Diagnostics\n");
+
+ // For each MMC instance
+ CurrentLink = mMmcHostPool.ForwardLink;
+ while (CurrentLink != NULL && CurrentLink != &mMmcHostPool && (Status == EFI_SUCCESS)) {
+ MmcHostInstance = MMC_HOST_INSTANCE_FROM_LINK(CurrentLink);
+ ASSERT(MmcHostInstance != NULL);
+
+ // LBA=1 Size=BlockSize
+ DiagnosticLog(L"MMC Driver Diagnostics - Test: First Block\n");
+ Status = MmcReadWriteDataTest(MmcHostInstance, 1, MmcHostInstance->BlockIo.Media->BlockSize);
+
+ // LBA=2 Size=BlockSize
+ DiagnosticLog(L"MMC Driver Diagnostics - Test: Second Block\n");
+ Status = MmcReadWriteDataTest(MmcHostInstance, 2, MmcHostInstance->BlockIo.Media->BlockSize);
+
+ // LBA=10 Size=BlockSize
+ DiagnosticLog(L"MMC Driver Diagnostics - Test: Any Block\n");
+ Status = MmcReadWriteDataTest(MmcHostInstance, MmcHostInstance->BlockIo.Media->LastBlock >> 1, MmcHostInstance->BlockIo.Media->BlockSize);
+
+ // LBA=LastBlock Size=BlockSize
+ DiagnosticLog(L"MMC Driver Diagnostics - Test: Last Block\n");
+ Status = MmcReadWriteDataTest(MmcHostInstance, MmcHostInstance->BlockIo.Media->LastBlock, MmcHostInstance->BlockIo.Media->BlockSize);
+
+ // LBA=1 Size=2*BlockSize
+ DiagnosticLog(L"MMC Driver Diagnostics - Test: First Block / 2 BlockSSize\n");
+ Status = MmcReadWriteDataTest(MmcHostInstance, 1, 2*MmcHostInstance->BlockIo.Media->BlockSize);
+
+ CurrentLink = CurrentLink->ForwardLink;
+ }
+
+ return Status;
+}
+
+//
+// EFI Driver Diagnostics 2 Protocol
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gMmcDriverDiagnostics2 = {
+ (EFI_DRIVER_DIAGNOSTICS2_RUN_DIAGNOSTICS) MmcDriverDiagnosticsRunDiagnostics,
+ "en"
+};
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