Public function

Functions
void	evc_cfg_setup (evc_cfg_t *cfg)
	Config Object Initialization function.
EVC_RETVAL	evc_init (evc_t *ctx, evc_cfg_t *cfg)
	Initialization function.
void	evc_default_cfg (evc_t *ctx)
	Click Default Configuration function.
void	evc_generic_write (evc_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic write function.
void	evc_generic_read (evc_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
	Generic read function.
void	evc_set_volume_part (evc_t *ctx, uint8_t channel, uint8_t volume1, uint8_t volume2)
	Set volume for the channel.
void	evc_set_volume_full (evc_t *ctx, uint8_t channel, int8_t volume)
	Set volume for the channel.
void	evc_clear (evc_t *ctx)
	Clear register.
void	evc_mute (evc_t *ctx, uint8_t mute)
	Mute and Unmute.

Detailed Description

Function Documentation

evc_cfg_setup()

void evc_cfg_setup

(

evc_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

@description This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

evc_clear()

void evc_clear

(

evc_t *

ctx

)

Clear register.

Parameters

ctx	Click object.

@description This function clears the registers.

Note

The PT2258 function register does not have any default settings. After clearing the register, an initial value must send in order to each register. If a register does has not been set, it is possible that no sound will be output. The cleaning and settings for each registers are included in the function "defaultConfiguration()".

evc_default_cfg()

void evc_default_cfg

(

evc_t *

ctx

)

Click Default Configuration function.

Parameters

ctx	Click object.

@description This function executes default configuration for EVC click.

Note

Calling this function clears all registers, sets each channel to 0dB and unmutes the sound. Contains additional initialization settings.

evc_generic_read()

void evc_generic_read	(	evc_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic read function.

Parameters

ctx	Click object.
reg	Register address.
data_buf	Output data buf
len	Number of the bytes to be read

@description This function reads data from the desired register.

evc_generic_write()

void evc_generic_write	(	evc_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buf,
		uint8_t	len )

Generic write function.

Parameters

ctx	Click object.
reg	Register address.
data_buf	Data buf to be written.
len	Number of the bytes in data buf.

@description This function writes data to the desired register.

evc_init()

EVC_RETVAL evc_init	(	evc_t *	ctx,
		evc_cfg_t *	cfg )

Initialization function.

Parameters

ctx	Click object.
cfg	Click configuration structure.

@description This function initializes all necessary pins and peripherals used for this click.

evc_mute()

void evc_mute	(	evc_t *	ctx,
		uint8_t	mute )

Mute and Unmute.

Parameters

ctx	Click object.
Mute	Mute register

@description This function mute and unmute the sound

evc_set_volume_full()

void evc_set_volume_full	(	evc_t *	ctx,
		uint8_t	channel,
		int8_t	volume )

Set volume for the channel.

Parameters

ctx	Click object.
channel	Chunnel register (from _EQUALIZER_CHANNEL_1 to _EQUALIZER_CHANNEL_6)
volume	Volume (from 0 to -79) (int8_t value)

@description This function sets the volume for the selected channel, uses one volume variables.

evc_set_volume_part()

void evc_set_volume_part	(	evc_t *	ctx,
		uint8_t	channel,
		uint8_t	volume1,
		uint8_t	volume2 )

Set volume for the channel.

Parameters

ctx	Click object.
channel	Chunnel register (from _EQUALIZER_CHANNEL_1 to _EQUALIZER_CHANNEL_6)
volume1	Volume (from _EQUALIZER_SET_VOLUME_1dB to _EQUALIZER_SET_VOLUME_9dB)
volume2	Volume (from _EQUALIZER_SET_VOLUME_10dB to _EQUALIZER_SET_VOLUME_70dB)

@description This function sets the volume for the selected channel, uses two variables.