pintos/src/devices/speaker.c File Reference

#include "devices/speaker.h"
#include "devices/pit.h"
#include "threads/io.h"
#include "threads/interrupt.h"
#include "devices/timer.h"

Go to the source code of this file.

Defines
#define	SPEAKER_PORT_GATE   0x61
#define	SPEAKER_GATE_ENABLE   0x03
Functions
void	speaker_on (int frequency)
void	speaker_off (void)
void	speaker_beep (void)

---

Define Documentation

#define SPEAKER_GATE_ENABLE   0x03

Definition at line 12 of file speaker.c.

Referenced by speaker_off(), and speaker_on().

#define SPEAKER_PORT_GATE   0x61

Definition at line 9 of file speaker.c.

Referenced by speaker_off(), and speaker_on().

---

Function Documentation

void speaker_beep

(

void

)

Definition at line 49 of file speaker.c.

References intr_get_level(), INTR_ON, speaker_off(), speaker_on(), and timer_msleep().

Referenced by vga_putc().

void speaker_off

(

void

)

Definition at line 40 of file speaker.c.

References inb(), intr_disable(), intr_set_level(), outb(), SPEAKER_GATE_ENABLE, and SPEAKER_PORT_GATE.

Referenced by speaker_beep(), and speaker_on().

void speaker_on

(

int

frequency

)

Definition at line 17 of file speaker.c.

References inb(), intr_disable(), intr_set_level(), outb(), pit_configure_channel(), SPEAKER_GATE_ENABLE, speaker_off(), and SPEAKER_PORT_GATE.

Referenced by speaker_beep().