Collaboration diagram for Usbd_audio_out_if_Private_Functions:

Functions
static uint8_t	AudioCmd (uint8_t *pbuf, uint32_t size, uint8_t cmd)
	AudioCmd Play, Stop, Pause or Resume current file. More...

static uint8_t	DeInit (uint32_t options)
	DeInit Free all resources used by low layer and stops audio-play function. More...

static uint8_t	GetState (void)
	GetState Return the current state of the audio machine. More...

static uint8_t	Init (uint32_t AudioFreq, uint32_t Volume, uint32_t options)
	Init Initialize and configures all required resources for audio play function. More...

static uint8_t	MuteCtl (uint8_t cmd)
	MuteCtl Mute or Unmute the audio current output. More...

static uint8_t	PeriodicTC (uint8_t cmd)

static uint8_t	VolumeCtl (uint8_t vol)
	VolumeCtl Set the volume level in %. More...

Detailed Description

Function Documentation

static uint8_t AudioCmd	(	uint8_t *	pbuf,
		uint32_t	size,
		uint8_t	cmd
	)

static

AudioCmd Play, Stop, Pause or Resume current file.

Parameters

pbuf	address from which file shoud be played.
size	size of the current buffer/file.
cmd	command to be executed, can be AUDIO_CMD_PLAY , AUDIO_CMD_PAUSE, AUDIO_CMD_RESUME or AUDIO_CMD_STOP.

Return values

AUDIO_OK if all operations succeed, AUDIO_FAIL else.

Definition at line 162 of file usbd_audio_out_if.c.

static uint8_t DeInit ( uint32_t options )

static

DeInit Free all resources used by low layer and stops audio-play function.

Parameters

options options passed to low layer function.

Return values

AUDIO_OK if all operations succeed, AUDIO_FAIL else.

Definition at line 145 of file usbd_audio_out_if.c.

static uint8_t GetState ( void )

static

GetState Return the current state of the audio machine.

Parameters

None

Return values

Current State.

Definition at line 304 of file usbd_audio_out_if.c.

static uint8_t Init	(	uint32_t	AudioFreq,
		uint32_t	Volume,
		uint32_t	options
	)

static

Init Initialize and configures all required resources for audio play function.

Parameters

AudioFreq	Statrtup audio frequency.
Volume	Startup volume to be set.
options	specific options passed to low layer function.

Return values

AUDIO_OK if all operations succeed, AUDIO_FAIL else.

Definition at line 113 of file usbd_audio_out_if.c.

static uint8_t MuteCtl ( uint8_t cmd )

static

MuteCtl Mute or Unmute the audio current output.

Parameters

cmd	can be 0 to unmute, or 1 to mute.

Return values

AUDIO_OK if all operations succeed, AUDIO_FAIL else.

Definition at line 271 of file usbd_audio_out_if.c.

static uint8_t PeriodicTC ( uint8_t cmd )

static

Parameters

Definition at line 290 of file usbd_audio_out_if.c.

static uint8_t VolumeCtl ( uint8_t vol )

static

VolumeCtl Set the volume level in %.

Parameters

vol	volume level to be set in % (from 0% to 100%)

Return values

AUDIO_OK if all operations succeed, AUDIO_FAIL else.

Definition at line 253 of file usbd_audio_out_if.c.