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Audio Bitstream DAC (Digital to Analog Converter) provides functions to convert a 16-bit sample value to a digital bitstream.

For UC3 B, this module is only available in AT32UC3B0512 and AT32UC3B1512.

Macros
#define	ABDAC_BF(name, value)
	Bit-field macro for GCLK. More...

#define	ABDAC_BIT(name) (1 << AVR32_ABDAC_##name##_OFFSET)
	Bit macro for ABDAC. More...

#define	ABDAC_GCLK AVR32_PM_GCLK_ABDAC
	GCLK used by the ABDAC to generate bitstream. More...

#define	ABDAC_TIMEOUT 5000
	Number of tries before the driver reports timeout. More...

#define	GCLK_BF(name, value)
	Bit-field macro for ABDAC GCLK. More...

#define	GCLK_BFEXT(name, value)
	Bit-field extraction macro for ABDAC GCLK. More...

#define	GCLK_BIT(name) (1 << AVR32_PM_GCCTRL_##name##_OFFSET)
	Bit macro for ABDAC GCLK. More...

Enumerations
enum	{ EINVAL = 22, ETIMEOUT }

Functions
void	abdac_disable (volatile avr32_abdac_t *abdac)

void	abdac_enable (volatile avr32_abdac_t *abdac)

unsigned long	abdac_get_dac_hz (volatile avr32_abdac_t *abdac, const unsigned long bus_hz)

unsigned long	abdac_set_dac_hz (volatile avr32_abdac_t *abdac, const unsigned long bus_hz, const unsigned long dac_hz)

bool	abdac_set_dac_sample_rate (const unsigned long dac_hz)

int	abdac_sink (volatile avr32_abdac_t *abdac, const unsigned short ch0, const unsigned short ch1)

void	abdac_swap_channels (volatile avr32_abdac_t *abdac)

#define ABDAC_BF	(		name,
			value
	)

Value:

(((value) & ((1 << AVR32_ABDAC_##name##_SIZE) - 1)) \

<< AVR32_ABDAC_##name##_OFFSET)

const char * name

Definition: ctrl_access.c:179

Bit-field macro for GCLK.

Referenced by abdac_sink().

#define ABDAC_BIT ( name ) (1 << AVR32_ABDAC_##name##_OFFSET)

Bit macro for ABDAC.

Referenced by abdac_disable(), abdac_enable(), abdac_sink(), and abdac_swap_channels().

#define ABDAC_GCLK AVR32_PM_GCLK_ABDAC

GCLK used by the ABDAC to generate bitstream.

Referenced by abdac_disable(), abdac_enable(), abdac_get_dac_hz(), abdac_set_dac_hz(), and abdac_set_dac_sample_rate().

#define ABDAC_TIMEOUT 5000

Number of tries before the driver reports timeout.

Referenced by abdac_sink().

#define GCLK_BF	(		name,
			value
	)

Value:

(((value) & ((1 << AVR32_PM_GCCTRL_##name##_SIZE) - 1))\

<< AVR32_PM_GCCTRL_##name##_OFFSET)

const char * name

Definition: ctrl_access.c:179

Bit-field macro for ABDAC GCLK.

#define GCLK_BFEXT	(		name,
			value
	)

Value:

(((value) >> AVR32_PM_GCCTRL_##name##_OFFSET) \

& ((1 << AVR32_PM_GCCTRL_##name##_SIZE) - 1))

const char * name

Definition: ctrl_access.c:179

Bit-field extraction macro for ABDAC GCLK.

Referenced by abdac_get_dac_hz().

#define GCLK_BIT ( name ) (1 << AVR32_PM_GCCTRL_##name##_OFFSET)

Bit macro for ABDAC GCLK.

Referenced by abdac_disable(), abdac_enable(), and abdac_get_dac_hz().

anonymous enum

Enumerator
EINVAL
ETIMEOUT

void abdac_disable ( volatile avr32_abdac_t * abdac )

References ABDAC_BIT, ABDAC_GCLK, and GCLK_BIT.

Referenced by tpa6130_dac_stop().

void abdac_enable ( volatile avr32_abdac_t * abdac )

References ABDAC_BIT, ABDAC_GCLK, and GCLK_BIT.

Referenced by tpa6130_dac_setup().

unsigned long abdac_get_dac_hz	(	volatile avr32_abdac_t *	abdac,
		const unsigned long	bus_hz
	)

References ABDAC_GCLK, GCLK_BFEXT, and GCLK_BIT.

unsigned long abdac_set_dac_hz	(	volatile avr32_abdac_t *	abdac,
		const unsigned long	bus_hz,
		const unsigned long	dac_hz
	)

References ABDAC_GCLK, and EINVAL.

Referenced by tpa6130_dac_setup().

bool abdac_set_dac_sample_rate ( const unsigned long dac_hz )

References ABDAC_GCLK.

Referenced by tpa6130_dac_setup().

int abdac_sink	(	volatile avr32_abdac_t *	abdac,
		const unsigned short	ch0,
		const unsigned short	ch1
	)

References ABDAC_BF, ABDAC_BIT, ABDAC_TIMEOUT, and ETIMEOUT.

void abdac_swap_channels ( volatile avr32_abdac_t * abdac )

References ABDAC_BIT.

Referenced by tpa6130_dac_setup().