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/** @file
Copyright (c) 2004 - 2014, 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 that 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.
Module Name:
LegacySpeaker.c
Abstract:
This file implements PEIM for Legacy Speaker. This file is valid for platforms both
on IA32 and Itanium Product Family
--*/
#include "PlatformEarlyInit.h"
EFI_STATUS
OutputBeep (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINTN NumberOfBeep,
IN UINTN BeepDuration,
IN UINTN TimerInterval
);
/**
This function will enable the speaker to generate beep
@param PeiServices PeiServices to locate PPI
@retval EFI_STATUS
**/
EFI_STATUS
TurnOnSpeaker (
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
UINT8 Data;
Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);
Data |= 0x03;
IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);
return EFI_SUCCESS;
}
/**
This function will stop beep from speaker.
@param PeiServices PeiServices to locate PPI
@retval Status
**/
EFI_STATUS
TurnOffSpeaker (
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
UINT8 Data;
Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);
Data &= 0xFC;
IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);
return EFI_SUCCESS;
}
EFI_STATUS
OutputBeep (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINTN NumberOfBeep,
IN UINTN BeepDuration,
IN UINTN TimeInterval
)
{
UINTN Num;
EFI_PEI_STALL_PPI* StallPpi;
(**PeiServices).LocatePpi (PeiServices, &gEfiPeiStallPpiGuid, 0, NULL, (void **)&StallPpi);
for (Num=0; Num < NumberOfBeep; Num++) {
TurnOnSpeaker (PeiServices);
StallPpi->Stall(PeiServices, StallPpi, BeepDuration);
TurnOffSpeaker(PeiServices);
StallPpi->Stall(PeiServices, StallPpi, TimeInterval);
}
return EFI_SUCCESS;
}
/**
This function will program the speaker tone frequency. The value should be with 64k
boundary since it takes only 16 bit value which gets programmed in two step IO opearattion
Frequency - A value which should be 16 bit only.
EFI_SUCESS
**/
EFI_STATUS
EFIAPI
ProgramToneFrequency (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINT16 Frequency
)
{
UINT8 Data;
Data = 0xB6;
IoWrite8(EFI_TIMER_CONTROL_PORT, Data);
Data = (UINT8)(Frequency & 0x00FF);
IoWrite8(EFI_TIMER_2_PORT, Data);
Data = (UINT8)((Frequency & 0xFF00) >> 8);
IoWrite8(EFI_TIMER_2_PORT, Data);
return EFI_SUCCESS;
}
/**
This function will generate the beep for specified duration.
@param PeiServices PeiServices to locate various PPIs
@param NumberOfBeeps Number of beeps which user want to produce
@param BeepDuration Duration for speaker gate need to be enabled
@param TimeInterval Interval between each beep
@retval EFI_STATUS
**/
EFI_STATUS
EFIAPI
GenerateBeepTone (
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINTN NumberOfBeeps,
IN UINTN BeepDuration,
IN UINTN TimeInterval
)
{
if ((NumberOfBeeps == 1) && (BeepDuration == 0) && (TimeInterval == 0)) {
TurnOnSpeaker (PeiServices);
return EFI_SUCCESS;
}
if ((NumberOfBeeps == 0) && (BeepDuration == 0) && (TimeInterval == 0)) {
TurnOffSpeaker (PeiServices);
return EFI_SUCCESS;
}
if (BeepDuration == 0) {
BeepDuration = EFI_DEFAULT_SHORT_BEEP_DURATION;
}
if (TimeInterval == 0) {
TimeInterval = EFI_DEFAULT_BEEP_TIME_INTERVAL;
}
OutputBeep (PeiServices, NumberOfBeeps, BeepDuration, TimeInterval);
return EFI_SUCCESS;
}
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