StatusCode/Pei/StatusCodePei.c

/** @file
  Status code PEIM which produces Status Code PPI.

  Copyright (c) 2006 - 2009, 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
  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 "StatusCodePei.h"

EFI_PEI_PROGRESS_CODE_PPI     mStatusCodePpi = {
  ReportDispatcher
  };

EFI_PEI_PPI_DESCRIPTOR        mStatusCodePpiDescriptor = {
  EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
  &gEfiPeiStatusCodePpiGuid,
  &mStatusCodePpi
  };

/**
  Publishes an interface that allows PEIMs to report status codes.

  This function implements EFI_PEI_PROGRESS_CODE_PPI.ReportStatusCode().
  It publishes an interface that allows PEIMs to report status codes.

  @param  PeiServices      An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
  @param  CodeType         Indicates the type of status code being reported.
  @param  Value            Describes the current status of a hardware or
                           software entity. This includes information about the class and
                           subclass that is used to classify the entity as well as an operation.
                           For progress codes, the operation is the current activity.
                           For error codes, it is the exception.For debug codes,it is not defined at this time.
  @param  Instance         The enumeration of a hardware or software entity within
                           the system. A system may contain multiple entities that match a class/subclass
                           pairing. The instance differentiates between them. An instance of 0 indicates
                           that instance information is unavailable, not meaningful, or not relevant.
                           Valid instance numbers start with 1.
  @param  CallerId         This optional parameter may be used to identify the caller.
                           This parameter allows the status code driver to apply different rules to
                           different callers.
  @param  Data             This optional parameter may be used to pass additional data.

  @retval EFI_SUCCESS      The function completed successfully.

**/
EFI_STATUS
EFIAPI
ReportDispatcher (
  IN CONST EFI_PEI_SERVICES         **PeiServices,
  IN EFI_STATUS_CODE_TYPE           CodeType,
  IN EFI_STATUS_CODE_VALUE          Value,
  IN UINT32                         Instance,
  IN CONST EFI_GUID                 *CallerId OPTIONAL,
  IN CONST EFI_STATUS_CODE_DATA     *Data OPTIONAL
  )
{
  if (FeaturePcdGet (PcdStatusCodeUseSerial)) {
    SerialStatusCodeReportWorker (
      CodeType,
      Value,
      Instance,
      CallerId,
      Data
      );
  }
  if (FeaturePcdGet (PcdStatusCodeUseMemory)) {
    MemoryStatusCodeReportWorker (
      CodeType,
      Value,
      Instance
      );
  }
  if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
    //
    // Call OEM hook status code library API to report status code to OEM device
    //
    OemHookStatusCodeReport (
      CodeType,
      Value,
      Instance,
      (EFI_GUID *)CallerId,
      (EFI_STATUS_CODE_DATA *)Data
      );
  }

  return EFI_SUCCESS;
}

/**
  Entry point of Status Code PEIM.

  This function is the entry point of this Status Code PEIM.
  It initializes supported status code devices according to PCD settings,
  and installs Status Code PPI.

  @param  FileHandle  Handle of the file being invoked.
  @param  PeiServices Describes the list of possible PEI Services.

  @retval EFI_SUCESS  The entry point of DXE IPL PEIM executes successfully.

**/
EFI_STATUS
EFIAPI
PeiStatusCodeDriverEntry (
  IN       EFI_PEI_FILE_HANDLE  FileHandle,
  IN CONST EFI_PEI_SERVICES     **PeiServices
  )
{
  EFI_STATUS                  Status;

  //
  // Dispatch initialization request to sub-statuscode-devices.
  // If enable UseSerial, then initialize serial port.
  // if enable UseMemory, then initialize memory status code worker.
  // if enable UseOEM, then initialize Oem status code.
  //
  if (FeaturePcdGet (PcdStatusCodeUseSerial)) {
    Status = SerialPortInitialize();
    ASSERT_EFI_ERROR (Status);
  }
  if (FeaturePcdGet (PcdStatusCodeUseMemory)) {
    Status = MemoryStatusCodeInitializeWorker ();
    ASSERT_EFI_ERROR  (Status);
  }
  if (FeaturePcdGet (PcdStatusCodeUseOEM)) {
    Status = OemHookStatusCodeInitialize ();
    ASSERT_EFI_ERROR  (Status);
  }

  //
  // Install Status Code PPI.
  // It serves the PEI Service ReportStatusCode.
  //
  Status = PeiServicesInstallPpi (&mStatusCodePpiDescriptor);
  ASSERT_EFI_ERROR (Status);

  return EFI_SUCCESS;
}