diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/Library/FlashDeviceLib/FlashDeviceLibDxeRuntimeSmm.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/Library/FlashDeviceLib/FlashDeviceLibDxeRuntimeSmm.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Library/FlashDeviceLib/FlashDeviceLibDxeRuntimeSmm.c b/Vlv2TbltDevicePkg/Library/FlashDeviceLib/FlashDeviceLibDxeRuntimeSmm.c new file mode 100644 index 000000000..842f0ce59 --- /dev/null +++ b/Vlv2TbltDevicePkg/Library/FlashDeviceLib/FlashDeviceLibDxeRuntimeSmm.c @@ -0,0 +1,179 @@ +/** @file
+
+ Copyright (c) 2004 - 2016, Intel Corporation. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that 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 <PiDxe.h>
+
+#include <Library/FlashDeviceLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiRuntimeLib.h>
+#include <Protocol/SmmBase2.h>
+#include <Guid/EventGroup.h>
+#include "SpiChipDefinitions.h"
+
+extern UINTN FlashDeviceBase;
+
+extern EFI_SPI_PROTOCOL *mSpiProtocol;
+
+VOID
+EFIAPI
+LibFvbFlashDeviceVirtualAddressChangeNotifyEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ gRT->ConvertPointer (0, (VOID **) &mSpiProtocol);
+ gRT->ConvertPointer (0, (VOID **) &FlashDeviceBase);
+}
+
+
+/**
+ The library constructuor.
+
+ The function does the necessary initialization work for this library
+ instance. Please put all initialization works in it.
+
+ @param[in] ImageHandle The firmware allocated handle for the UEFI image.
+ @param[in] SystemTable A pointer to the EFI system table.
+
+ @retval EFI_SUCCESS The function always return EFI_SUCCESS for now.
+ It will ASSERT on error for debug version.
+ @retval EFI_ERROR Please reference LocateProtocol for error code details.
+
+**/
+EFI_STATUS
+EFIAPI
+LibFvbFlashDeviceSupportInit (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT Event;
+ UINT8 SfId[3];
+ UINT8 FlashIndex;
+ UINT8 SpiReadError;
+ UINT8 SpiNotMatchError;
+ EFI_SMM_BASE2_PROTOCOL *SmmBase;
+ BOOLEAN InSmm;
+
+ SpiReadError = 0x00;
+ SpiNotMatchError = 0x00;
+
+ InSmm = FALSE;
+ Status = gBS->LocateProtocol (
+ &gEfiSmmBase2ProtocolGuid,
+ NULL,
+ (void **)&SmmBase
+ );
+ if (!EFI_ERROR(Status)) {
+ Status = SmmBase->InSmm(SmmBase, &InSmm);
+ if (EFI_ERROR(Status)) {
+ InSmm = FALSE;
+ }
+ }
+
+ if (!InSmm) {
+ Status = gBS->LocateProtocol (
+ &gEfiSpiProtocolGuid,
+ NULL,
+ (VOID **)&mSpiProtocol
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ LibFvbFlashDeviceVirtualAddressChangeNotifyEvent,
+ NULL,
+ &gEfiEventVirtualAddressChangeGuid,
+ &Event
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ } else {
+ Status = gBS->LocateProtocol (
+ &gEfiSmmSpiProtocolGuid,
+ NULL,
+ (VOID **)&mSpiProtocol
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
+
+
+ for (FlashIndex = EnumSpiFlashW25Q64; FlashIndex < EnumSpiFlashMax; FlashIndex++) {
+ Status = mSpiProtocol->Init (mSpiProtocol, &(mInitTable[FlashIndex]));
+ if (!EFI_ERROR (Status)) {
+ //
+ // Read Vendor/Device IDs to check if the driver supports the Serial Flash device.
+ //
+ Status = mSpiProtocol->Execute (
+ mSpiProtocol,
+ SPI_READ_ID,
+ SPI_WREN,
+ TRUE,
+ FALSE,
+ FALSE,
+ 0,
+ 3,
+ SfId,
+ EnumSpiRegionAll
+ );
+ if (!EFI_ERROR (Status)) {
+ if ((SfId[0] == mInitTable[FlashIndex].VendorId) &&
+ (SfId[1] == mInitTable[FlashIndex].DeviceId0) &&
+ (SfId[2] == mInitTable[FlashIndex].DeviceId1)) {
+ //
+ // Found a matching SPI device, FlashIndex now contains flash device.
+ //
+ DEBUG ((EFI_D_ERROR, "OK - Found SPI Flash Type in SPI Flash Driver, Device Type ID 0 = 0x%02x!\n", mInitTable[FlashIndex].DeviceId0));
+ DEBUG ((EFI_D_ERROR, "Device Type ID 1 = 0x%02x!\n", mInitTable[FlashIndex].DeviceId1));
+
+ if (mInitTable[FlashIndex].BiosStartOffset == (UINTN) (-1)) {
+ DEBUG ((EFI_D_ERROR, "ERROR - The size of BIOS image is bigger than SPI Flash device!\n"));
+ CpuDeadLoop ();
+ }
+ break;
+ } else {
+ SpiNotMatchError++;
+ }
+ } else {
+ SpiReadError++;
+ }
+ }
+ }
+
+ DEBUG ((EFI_D_ERROR, "SPI flash chip VID = 0x%X, DID0 = 0x%X, DID1 = 0x%X\n", SfId[0], SfId[1], SfId[2]));
+
+ if (FlashIndex < EnumSpiFlashMax) {
+ return EFI_SUCCESS;
+ } else {
+ if (SpiReadError != 0) {
+ DEBUG ((EFI_D_ERROR, "ERROR - SPI Read ID execution failed! Error Count = %d\n", SpiReadError));
+ }
+ else {
+ if (SpiNotMatchError != 0) {
+ DEBUG ((EFI_D_ERROR, "ERROR - No supported SPI flash chip found! Error Count = %d\n", SpiNotMatchError));
+ DEBUG ((EFI_D_ERROR, "SPI flash chip VID = 0x%X, DID0 = 0x%X, DID1 = 0x%X\n", SfId[0], SfId[1], SfId[2]));
+ }
+ }
+ return EFI_UNSUPPORTED;
+ }
+}
+
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