#include <pci/io.h>
#include <stdint.h>
#include <string.h>
#include <xenon_smc/xenon_smc.h>
#include <xenon_smc/xenon_gpio.h>
#include <ppc/cache.h>

Include dependency graph for sound.c:

Functions
void	xenon_sound_init (void)

void	xenon_sound_submit (void *data, int len)

int	xenon_sound_get_free (void)

int	xenon_sound_get_unplayed (void)

void	xenon_tone (uint32_t frequency, uint32_t duration, int16_t amplitude)

Variables
int	xenos_is_hdmi

Function Documentation

◆ xenon_sound_get_free()

int xenon_sound_get_free ( void )

Returns: Available free buffer space in bytes.

Definition at line 93 of file sound.c.

◆ xenon_sound_get_unplayed()

int xenon_sound_get_unplayed ( void )

Returns: Unplayed queued data size in bytes.

Definition at line 111 of file sound.c.

◆ xenon_sound_init()

void xenon_sound_init ( void )

Initialize DAC, de-assert AUD_CLAMP, initialize HDMI audio

Definition at line 16 of file sound.c.

◆ xenon_sound_submit()

void xenon_sound_submit	(	void *	data,
		int	len
	)

Submit PCM audio data to be played on the conencted TV, monitor, audio device

48kHz sample rate Signed 16-bit stereo PCM, little endian

Parameters

data	Pointer to buffer of audio data
len	Number of bytes from the buffer to submit

Definition at line 69 of file sound.c.

◆ xenon_tone()

void xenon_tone	(	uint32_t	frequency,
		uint32_t	duration,
		int16_t	amplitude
	)

Generare a square wave tone

Parameters

frequency	Tone frequency
duration	Tone length in milliseconds.
amplitude	Peak sample amplitude (signed 16-bit).

Definition at line 128 of file sound.c.

Variable Documentation

◆ xenos_is_hdmi

int xenos_is_hdmi

extern

Definition at line 22 of file xenos.c.

Functions

Variables