mirror of https://github.com/acidanthera/audk.git
174 lines
4.5 KiB
C
174 lines
4.5 KiB
C
/** @file
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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LegacySpeaker.c
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Abstract:
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This file implements PEIM for Legacy Speaker. This file is valid for platforms both
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on IA32 and Itanium Product Family
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--*/
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#include "PlatformEarlyInit.h"
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EFI_STATUS
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OutputBeep (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN UINTN NumberOfBeep,
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IN UINTN BeepDuration,
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IN UINTN TimerInterval
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);
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/**
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This function will enable the speaker to generate beep
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@param PeiServices PeiServices to locate PPI
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@retval EFI_STATUS
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**/
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EFI_STATUS
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TurnOnSpeaker (
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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{
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UINT8 Data;
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Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);
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Data |= 0x03;
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IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);
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return EFI_SUCCESS;
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}
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/**
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This function will stop beep from speaker.
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@param PeiServices PeiServices to locate PPI
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@retval Status
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**/
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EFI_STATUS
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TurnOffSpeaker (
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IN CONST EFI_PEI_SERVICES **PeiServices
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)
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{
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UINT8 Data;
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Data = IoRead8 (EFI_SPEAKER_CONTROL_PORT);
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Data &= 0xFC;
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IoWrite8(EFI_SPEAKER_CONTROL_PORT, Data);
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return EFI_SUCCESS;
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}
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EFI_STATUS
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OutputBeep (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN UINTN NumberOfBeep,
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IN UINTN BeepDuration,
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IN UINTN TimeInterval
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)
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{
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UINTN Num;
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EFI_PEI_STALL_PPI* StallPpi;
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(**PeiServices).LocatePpi (PeiServices, &gEfiPeiStallPpiGuid, 0, NULL, (void **)&StallPpi);
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for (Num=0; Num < NumberOfBeep; Num++) {
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TurnOnSpeaker (PeiServices);
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StallPpi->Stall(PeiServices, StallPpi, BeepDuration);
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TurnOffSpeaker(PeiServices);
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StallPpi->Stall(PeiServices, StallPpi, TimeInterval);
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}
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return EFI_SUCCESS;
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}
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/**
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This function will program the speaker tone frequency. The value should be with 64k
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boundary since it takes only 16 bit value which gets programmed in two step IO opearattion
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Frequency - A value which should be 16 bit only.
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EFI_SUCESS
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**/
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EFI_STATUS
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EFIAPI
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ProgramToneFrequency (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN UINT16 Frequency
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)
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{
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UINT8 Data;
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Data = 0xB6;
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IoWrite8(EFI_TIMER_CONTROL_PORT, Data);
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Data = (UINT8)(Frequency & 0x00FF);
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IoWrite8(EFI_TIMER_2_PORT, Data);
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Data = (UINT8)((Frequency & 0xFF00) >> 8);
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IoWrite8(EFI_TIMER_2_PORT, Data);
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return EFI_SUCCESS;
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}
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/**
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This function will generate the beep for specified duration.
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@param PeiServices PeiServices to locate various PPIs
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@param NumberOfBeeps Number of beeps which user want to produce
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@param BeepDuration Duration for speaker gate need to be enabled
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@param TimeInterval Interval between each beep
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@retval EFI_STATUS
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**/
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EFI_STATUS
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EFIAPI
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GenerateBeepTone (
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IN CONST EFI_PEI_SERVICES **PeiServices,
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IN UINTN NumberOfBeeps,
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IN UINTN BeepDuration,
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IN UINTN TimeInterval
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)
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{
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if ((NumberOfBeeps == 1) && (BeepDuration == 0) && (TimeInterval == 0)) {
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TurnOnSpeaker (PeiServices);
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return EFI_SUCCESS;
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}
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if ((NumberOfBeeps == 0) && (BeepDuration == 0) && (TimeInterval == 0)) {
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TurnOffSpeaker (PeiServices);
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return EFI_SUCCESS;
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}
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if (BeepDuration == 0) {
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BeepDuration = EFI_DEFAULT_SHORT_BEEP_DURATION;
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}
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if (TimeInterval == 0) {
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TimeInterval = EFI_DEFAULT_BEEP_TIME_INTERVAL;
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}
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OutputBeep (PeiServices, NumberOfBeeps, BeepDuration, TimeInterval);
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return EFI_SUCCESS;
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}
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