/* $NoKeywords:$ */
/**
 * @file
 *
 * Various Timer services.
 *
 *
 *
 * @xrefitem bom "File Content Label" "Release Content"
 * @e project:     AGESA
 * @e sub-project: GNB
 * @e \$Revision: 63425 $   @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $
 *
 */
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*****************************************************************************
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#include  "AGESA.h"
#include  "amdlib.h"
#include  "S3SaveState.h"
#include  "Gnb.h"
#include  "GnbLib.h"
#include  "GnbTimerLib.h"
#include  "Filecode.h"
#define FILECODE PROC_GNB_LIBRARY_GNBTIMERLIBWRAP0_GNBTIMERLIBWRAP0_FILECODE


VOID
GnbLibStallS3Script (
  IN      AMD_CONFIG_PARAMS    *StdHeader,
  IN      UINT16               ContextLength,
  IN      VOID*                Context
  );

/*----------------------------------------------------------------------------------------*/
/*
 * Stall and save to script table
 *
 *
 *
 * @param[in] Microsecond     Stall time
 * @param[in] StdHeader       Standard configuration header
 */

VOID
GnbLibStallS3Save (
  IN      UINT32              Microsecond,
  IN      AMD_CONFIG_PARAMS   *StdHeader
  )
{
  S3_SAVE_DISPATCH (StdHeader, GnbLibStallS3Script_ID, sizeof (Microsecond), &Microsecond);
  GnbLibStall (Microsecond, StdHeader);
}


/*----------------------------------------------------------------------------------------*/
/*
 * Stall
 *
 *
 *
 * @param[in] Microsecond     Stall time
 * @param[in] StdHeader       Standard configuration header
 */

VOID
GnbLibStall (
  IN      UINT32              Microsecond,
  IN      AMD_CONFIG_PARAMS   *StdHeader
  )
{
  UINT32 TimeStampStart;
  UINT32 TimeStampDelta;
  UINT32 TimeStampCurrent;

  TimeStampStart = GnbLibTimeStamp (StdHeader);
  do {
    TimeStampCurrent = GnbLibTimeStamp (StdHeader);
    TimeStampDelta = ((TimeStampCurrent > TimeStampStart) ? (TimeStampCurrent - TimeStampStart) : (0xffffffffull - TimeStampStart + TimeStampCurrent));
  } while (TimeStampDelta < Microsecond);
}

/*----------------------------------------------------------------------------------------*/
/**
 * Stall S3 script
 *
 *
 *
 * @param[in]  StdHeader      Standard configuration header
 * @param[in]  ContextLength  Context Length (not used)
 * @param[in]  Context        pointer to UINT32 number of us
 */
VOID
GnbLibStallS3Script (
  IN      AMD_CONFIG_PARAMS    *StdHeader,
  IN      UINT16               ContextLength,
  IN      VOID*                Context
  )
{
  GnbLibStall (* ((UINT32*) Context), StdHeader);
}
/*----------------------------------------------------------------------------------------*/
/*
 * Time stamp in us
 *
 *
 *
 * @param[in] StdHeader       Standard configuration header
 * @retval    TRUE            Device is a bridge
 * @retval    FALSE           Device is not a bridge
 */

UINT32
GnbLibTimeStamp (
  IN      AMD_CONFIG_PARAMS   *StdHeader
  )
{
  UINT32  TimeStamp;
  GnbLibPciIndirectRead (
    MAKE_SBDFO (0, 0, 0, 0, 0xE0),
    0x13080F0,
    AccessWidth32,
    &TimeStamp,
    StdHeader
    );
  return TimeStamp;
}