text: /** @file
    Implementation of Ipmi Library for SMM.
  
    Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
    SPDX-License-Identifier: BSD-2-Clause-Patent
  
  **/
  
  #include <PiSmm.h>
  #include <Protocol/IpmiProtocol.h>
  #include <Library/IpmiLib.h>
  #include <Library/SmmServicesTableLib.h>
  #include <Library/DebugLib.h>
  
  IPMI_PROTOCOL  *mIpmiProtocol = NULL;
  
  /**
    This service enables submitting commands via Ipmi.
  
    @param[in]         NetFunction       Net function of the command.
    @param[in]         Command           IPMI Command.
    @param[in]         RequestData       Command Request Data.
    @param[in]         RequestDataSize   Size of Command Request Data.
    @param[out]        ResponseData      Command Response Data. The completion code is the first byte of response data.
    @param[in, out]    ResponseDataSize  Size of Command Response Data.
  
    @retval EFI_SUCCESS            The command byte stream was successfully submit to the device and a response was successfully received.
    @retval EFI_NOT_FOUND          The command was not successfully sent to the device or a response was not successfully received from the device.
    @retval EFI_NOT_READY          Ipmi Device is not ready for Ipmi command access.
    @retval EFI_DEVICE_ERROR       Ipmi Device hardware error.
    @retval EFI_TIMEOUT            The command time out.
    @retval EFI_UNSUPPORTED        The command was not successfully sent to the device.
    @retval EFI_OUT_OF_RESOURCES   The resource allcation is out of resource or data size error.
  **/
  EFI_STATUS
  EFIAPI
  IpmiSubmitCommand (
    IN     UINT8   NetFunction,
    IN     UINT8   Command,
    IN     UINT8   *RequestData,
    IN     UINT32  RequestDataSize,
    OUT UINT8      *ResponseData,
    IN OUT UINT32  *ResponseDataSize
    )
  {
    EFI_STATUS  Status;
  
    if (mIpmiProtocol == NULL) {
      Status = gSmst->SmmLocateProtocol (
                        &gSmmIpmiProtocolGuid,
                        NULL,
                        (VOID **)&mIpmiProtocol
                        );
      if (EFI_ERROR (Status)) {
        //
        // Smm Ipmi Protocol is not installed. So, IPMI device is not present.
        //
        DEBUG ((DEBUG_ERROR, "IpmiSubmitCommand for SMM Status - %r\n", Status));
        return EFI_NOT_FOUND;
      }
    }
  
    Status = mIpmiProtocol->IpmiSubmitCommand (
                              mIpmiProtocol,
                              NetFunction,
                              Command,
                              RequestData,
                              RequestDataSize,
                              ResponseData,
                              ResponseDataSize
                              );
    if (EFI_ERROR (Status)) {
      return Status;
    }
  
    return EFI_SUCCESS;
  }
  