speaker.c File Reference

#include "precomp.h"

Include dependency graph for speaker.c:

Go to the source code of this file.

Functions
NTSTATUS	SbDspEnableSpeaker (IN PUCHAR BasePort, IN ULONG Timeout)
NTSTATUS	SbDspDisableSpeaker (IN PUCHAR BasePort, IN ULONG Timeout)
NTSTATUS	SbDspIsSpeakerEnabled (IN PUCHAR BasePort, OUT PBOOLEAN IsEnabled, IN ULONG Timeout)

Function Documentation

SbDspDisableSpeaker()

NTSTATUS SbDspDisableSpeaker	(	IN PUCHAR	BasePort,
		IN ULONG	Timeout
	)

Definition at line 27 of file speaker.c.

{
    return SbDspWrite(BasePort, SB_DSP_SPEAKER_OFF, Timeout);
}

SbDspEnableSpeaker()

NTSTATUS SbDspEnableSpeaker	(	IN PUCHAR	BasePort,
		IN ULONG	Timeout
	)

Definition at line 19 of file speaker.c.

{
    return SbDspWrite(BasePort, SB_DSP_SPEAKER_ON, Timeout);
}

SbDspIsSpeakerEnabled()

NTSTATUS SbDspIsSpeakerEnabled	(	IN PUCHAR	BasePort,
		OUT PBOOLEAN	IsEnabled,
		IN ULONG	Timeout
	)

Definition at line 38 of file speaker.c.

{
    NTSTATUS Status;
    UCHAR SpeakerStatus = 0;
 
    if ( ! IsEnabled )
        return STATUS_INVALID_PARAMETER_2;
 
    /* Request the speaker status */
    Status = SbDspWrite(BasePort, SB_DSP_SPEAKER_STATUS, Timeout);
    if ( Status != STATUS_SUCCESS )
        return Status;
 
    /* Obtain the status */
    Status = SbDspRead(BasePort, &SpeakerStatus, Timeout);
    if ( Status != STATUS_SUCCESS )
        return Status;
 
    DbgPrint("SBDSP - SpeakerStatus is %02x\n", SpeakerStatus);
    *IsEnabled = (SpeakerStatus == 0xFF);
 
    return STATUS_SUCCESS;
}