110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/** @file
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Implement TCM Startup related command.
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;******************************************************************************
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;* Copyright (c) 2019, Insyde Software Corp. All Rights Reserved.
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;*
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;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
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;* transmit, broadcast, present, recite, release, license or otherwise exploit
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;* any part of this publication in any form, by any means, without the prior
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;* written permission of Insyde Software Corporation.
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;*
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;******************************************************************************
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**/
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#include <PiPei.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BaseLib.h>
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#include <Library/TcmDeviceLib.h>
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#include <Library/DebugLib.h>
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#pragma pack(1)
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typedef struct {
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TCM_RQU_COMMAND_HDR Hdr;
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TCM_STARTUP_TYPE TcmSt;
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} TCM_CMD_START_UP;
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#pragma pack()
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/**
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Send Startup command to TCM.
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@param TcmSt Startup Type.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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TcmStartup (
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IN TCM_STARTUP_TYPE TcmSt
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)
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{
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EFI_STATUS Status;
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TCM_CMD_START_UP Command;
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TCM_RSP_COMMAND_HDR Response;
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UINT32 Length;
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//
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// send Tcm command TCM_ORD_Startup
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//
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Command.Hdr.tag = SwapBytes16 (TCM_TAG_RQU_COMMAND);
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Command.Hdr.paramSize = SwapBytes32 (sizeof (Command));
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Command.Hdr.ordinal = SwapBytes32 (TCM_ORD_Startup);
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Command.TcmSt = SwapBytes16 (TcmSt);
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Length = sizeof (Response);
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Status = TcmSubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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switch (SwapBytes32(Response.returnCode)) {
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case TCM_SUCCESS:
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DEBUG ((DEBUG_INFO, "TCMStartup: TCM_SUCCESS\n"));
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return EFI_SUCCESS;
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case TCM_INVALID_POSTINIT:
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// In warm reset, TCM may response TCM_INVALID_POSTINIT
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DEBUG ((DEBUG_INFO, "TCMStartup: TCM_INVALID_POSTINIT\n"));
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return EFI_SUCCESS;
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default:
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return EFI_DEVICE_ERROR;
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}
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}
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/**
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Send SaveState command to TCM.
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@retval EFI_SUCCESS Operation completed successfully.
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@retval EFI_DEVICE_ERROR Unexpected device behavior.
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**/
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EFI_STATUS
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EFIAPI
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TcmSaveState (
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VOID
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)
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{
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EFI_STATUS Status;
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TCM_RQU_COMMAND_HDR Command;
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TCM_RSP_COMMAND_HDR Response;
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UINT32 Length;
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//
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// send Tcm command TCM_ORD_SaveState
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//
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Command.tag = SwapBytes16 (TCM_TAG_RQU_COMMAND);
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Command.paramSize = SwapBytes32 (sizeof (Command));
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Command.ordinal = SwapBytes32 (TCM_ORD_SaveState);
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Length = sizeof (Response);
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Status = TcmSubmitCommand (sizeof (Command), (UINT8 *)&Command, &Length, (UINT8 *)&Response);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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switch (SwapBytes32 (Response.returnCode)) {
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case TCM_SUCCESS:
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return EFI_SUCCESS;
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default:
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return EFI_DEVICE_ERROR;
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}
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}
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