C++ (Cpp) ReadECmsg Examples

Example #1

File: AvalonImcLib.c Project: fishbaoz/edk2ml

/**
 * ImcCrashReset - IMC Crash Reset
 *
 *
 * @param[in] FchDataPtr Fch configuration structure pointer.
 *
 */
VOID
ImcCrashReset (
  IN  VOID     *FchDataPtr
  )
{
  UINT8        Msgdata;
  FCH_DATA_BLOCK         *LocalCfgPtr;
  AMD_CONFIG_PARAMS      *StdHeader;

  LocalCfgPtr = (FCH_DATA_BLOCK *) FchDataPtr;
  StdHeader = LocalCfgPtr->StdHeader;

  if (!(IsImcEnabled (StdHeader)) ) {
    return;                                                ///IMC is not enabled
  }

  ReadECmsg (MSG_REG0, AccessWidth8, &Msgdata, StdHeader);
  if ( Msgdata != 0xfa) {
    ReadECmsg (MSG_REGA, AccessWidth8, &Msgdata, StdHeader);
    if ( Msgdata != 0x5A ) {
      ReadECmsg (MSG_REGB, AccessWidth8, &Msgdata, StdHeader);
      if ( Msgdata != 0xA5 ) {
        // Set up MSG_REGA = 0x5A and MSG_REGB = 0xA5 as a flag to indicate IMC has been
        // reset once already, this is to prevent repeating the reset forever.
        Msgdata = 0x5A;
        WriteECmsg (MSG_REGA, AccessWidth8, &Msgdata, StdHeader);
        Msgdata = 0xA5;
        WriteECmsg (MSG_REGB, AccessWidth8, &Msgdata, StdHeader);
        SoftwareDisableImc (LocalCfgPtr);
      }
    }
  }
}

Example #2

File: imc.c Project: RafaelRMachado/Coreboot

void enable_imc_thermal_zone(void)
{
	AMD_CONFIG_PARAMS StdHeader;
	UINT8 FunNum;
	UINT8 regs[9];
	int i;

	regs[0] = 0;
	regs[1] = 0;
	FunNum = Fun_80;
	for (i=0; i<=1; i++)
		WriteECmsg(MSG_REG0 + i, AccessWidth8, &regs[i], &StdHeader);
	WriteECmsg(MSG_SYS_TO_IMC, AccessWidth8, &FunNum, &StdHeader);     // function number
	WaitForEcLDN9MailboxCmdAck(&StdHeader);

	for (i=2; i<=9; i++)
		ReadECmsg(MSG_REG0 + i, AccessWidth8, &regs[i], &StdHeader);

	/* enable thermal zone 0 */
	regs[2] |= 1;
	regs[0] = 0;
	regs[1] = 0;
	FunNum = Fun_81;
	for (i=0; i<=9; i++)
		WriteECmsg(MSG_REG0 + i, AccessWidth8, &regs[i], &StdHeader);
	WriteECmsg(MSG_SYS_TO_IMC, AccessWidth8, &FunNum, &StdHeader);     // function number
	WaitForEcLDN9MailboxCmdAck(&StdHeader);
}

Example #3

VOID
WaitForEcLDN9MailboxCmdAck (
  IN AMD_CONFIG_PARAMS  *StdHeader
  )
{
  UINT8    Msgdata;
  UINT32   Delaytime;

  Msgdata = 0;

  for (Delaytime = 0; Delaytime <= 100000; Delaytime++) {
    ReadECmsg (MSG_REG0, AccessWidth8, &Msgdata, StdHeader);
    if ( Msgdata == 0xfa) {
      break;
    }

    FchStall (5, StdHeader);                            /// Wait for 1ms
  }
}