mirror of https://github.com/acidanthera/audk.git
167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
/** @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 DXE for Legacy Speaker.
|
|
|
|
--*/
|
|
|
|
#include "LegacySpeaker.h"
|
|
|
|
/**
|
|
|
|
This function will enable the speaker to generate beep
|
|
|
|
@retval EFI_STATUS
|
|
|
|
**/
|
|
EFI_STATUS
|
|
TurnOnSpeaker (
|
|
)
|
|
{
|
|
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.
|
|
|
|
@retval Status
|
|
|
|
**/
|
|
EFI_STATUS
|
|
TurnOffSpeaker (
|
|
)
|
|
{
|
|
UINT8 Data;
|
|
|
|
Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);
|
|
Data &= 0xFC;
|
|
IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Generate beep sound based upon number of beeps and duration of the beep
|
|
|
|
@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 Does not return if the reset takes place.
|
|
EFI_INVALID_PARAMETER If ResetType is invalid.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
OutputBeep (
|
|
IN UINTN NumberOfBeep,
|
|
IN UINTN BeepDuration,
|
|
IN UINTN TimeInterval
|
|
)
|
|
{
|
|
UINTN Num;
|
|
|
|
for (Num=0; Num < NumberOfBeep; Num++) {
|
|
TurnOnSpeaker ();
|
|
//
|
|
// wait some time,at least 120us
|
|
//
|
|
gBS->Stall (BeepDuration);
|
|
TurnOffSpeaker();
|
|
gBS->Stall (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
|
|
|
|
@param Frequency A value which should be 16 bit only.
|
|
|
|
@retval EFI_SUCESS
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
ProgramToneFrequency (
|
|
IN EFI_SPEAKER_IF_PROTOCOL * This,
|
|
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 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 EFI_SPEAKER_IF_PROTOCOL * This,
|
|
IN UINTN NumberOfBeeps,
|
|
IN UINTN BeepDuration,
|
|
IN UINTN TimeInterval
|
|
)
|
|
{
|
|
|
|
if ((NumberOfBeeps == 1) && (BeepDuration == 0) && (TimeInterval == 0)) {
|
|
TurnOnSpeaker ();
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
if ((NumberOfBeeps == 0) && (BeepDuration == 0) && (TimeInterval == 0)) {
|
|
TurnOffSpeaker ();
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
if (BeepDuration == 0) {
|
|
BeepDuration = EFI_DEFAULT_SHORT_BEEP_DURATION;
|
|
}
|
|
|
|
if (TimeInterval == 0) {
|
|
TimeInterval = EFI_DEFAULT_BEEP_TIME_INTERVAL;
|
|
}
|
|
|
|
OutputBeep (NumberOfBeeps, BeepDuration, TimeInterval);
|
|
return EFI_SUCCESS;
|
|
|
|
|
|
}
|