Audio Codec Software Driver for the MobileSound 3 (MS3) from Bang & Olufsen ICEPower configured to be used with the external CS2200 clock synthesizer.

Macros
#define	MS3_HP_VOL_L 0x0C

#define	MS3_HP_VOL_R 0x0D

#define	MS3_LEFT_CHANNEL 1

#define	MS3_MUTE_VOL_CTRL 0x0E

#define	MS3_RIGHT_CHANNEL 2

#define	MS3_SP_VOL_L 0x0A

#define	MS3_SP_VOL_R 0x0B

#define	MS3_TWI (&AVR32_TWI)

#define	MS3_TWI_ADDRESS (0xDC >> 1)

#define	MS3_VOL_MAX 0xA8

#define	MS3_VOL_MIN 0x30

#define	MS3_VOL_STEP 3

Functions
void	ms3_dac_decrease_volume (void)

void	ms3_dac_flush (void)

U8	ms3_dac_get_volume (void)

void	ms3_dac_increase_volume (void)

bool	ms3_dac_is_volume_boosted (void)

bool	ms3_dac_is_volume_muted (void)

void	ms3_dac_mute (bool mute)

bool	ms3_dac_output (void *sample_buffer, size_t sample_length)

void	ms3_dac_set_volume (U8 volume)

void	ms3_dac_setup (U32 sample_rate_hz, U8 num_channels, U8 bits_per_sample, bool swap_channels, void(*callback)(U32 arg), U32 callback_opt, U32 pba_hz)

void	ms3_dac_start (U32 sample_rate_hz, U8 num_channels, U8 bits_per_sample, bool swap_channels, void(*callback)(U32 arg), U32 callback_opt, U32 pba_hz)

void	ms3_dac_stop (void)

#define MS3_HP_VOL_L 0x0C

Referenced by ms3_get_volume(), and ms3_set_volume().

#define MS3_HP_VOL_R 0x0D

Referenced by ms3_get_volume(), and ms3_set_volume().

#define MS3_LEFT_CHANNEL 1

Referenced by ms3_dac_decrease_volume(), ms3_dac_increase_volume(), ms3_dac_set_volume(), ms3_get_volume(), and ms3_set_volume().

#define MS3_MUTE_VOL_CTRL 0x0E

Referenced by ms3_dac_is_volume_muted().

#define MS3_RIGHT_CHANNEL 2

Referenced by ms3_dac_decrease_volume(), ms3_dac_increase_volume(), ms3_dac_set_volume(), ms3_get_volume(), and ms3_set_volume().

#define MS3_SP_VOL_L 0x0A

Referenced by ms3_set_volume().

#define MS3_SP_VOL_R 0x0B

Referenced by ms3_set_volume().

#define MS3_TWI (&AVR32_TWI)

Referenced by ms3_read_reg(), and ms3_write_reg().

#define MS3_TWI_ADDRESS (0xDC >> 1)

Referenced by ms3_read_reg(), and ms3_write_reg().

#define MS3_VOL_MAX 0xA8

Referenced by ms3_dac_decrease_volume(), and ms3_dac_set_volume().

#define MS3_VOL_MIN 0x30

Referenced by ms3_dac_increase_volume(), and ms3_dac_set_volume().

#define MS3_VOL_STEP 3

Referenced by ms3_dac_decrease_volume(), and ms3_dac_increase_volume().

void ms3_dac_decrease_volume ( void )

References ms3_get_volume(), MS3_LEFT_CHANNEL, MS3_RIGHT_CHANNEL, ms3_set_volume(), MS3_VOL_MAX, MS3_VOL_STEP, and volume.

void ms3_dac_flush ( void )

References MS3_SSC_TX_PDCA_CHANNEL, pdca_disable_interrupt_reload_counter_zero(), pdca_disable_interrupt_transfer_complete(), pdca_get_transfer_status(), and PDCA_TRANSFER_COMPLETE.

Referenced by ms3_dac_stop().

U8 ms3_dac_get_volume ( void )

void ms3_dac_increase_volume ( void )

References ms3_get_volume(), MS3_LEFT_CHANNEL, MS3_RIGHT_CHANNEL, ms3_set_volume(), MS3_VOL_MIN, MS3_VOL_STEP, and volume.

bool ms3_dac_is_volume_boosted ( void )

bool ms3_dac_is_volume_muted ( void )

References MS3_MUTE_VOL_CTRL, ms3_read_reg(), and mute.

void ms3_dac_mute ( bool mute )

References gpio_enable_gpio(), gpio_enable_module(), ms3_output_params, MS3_SSC_TX_PDCA_CHANNEL, pdca_disable_interrupt_reload_counter_zero(), pdca_enable_interrupt_reload_counter_zero(), pdca_get_transfer_status(), and PDCA_TRANSFER_COMPLETE.

bool ms3_dac_output	(	void *	sample_buffer,
		size_t	sample_length
	)

References AUDIO_DAC_OUT_OF_SAMPLE_CB, AUDIO_DAC_RELOAD_CB, Disable_global_interrupt, Enable_global_interrupt, gpio_get_pin_value(), i, Is_global_interrupt_enabled, ms3_output_params, MS3_SSC_TX_FRAME_SYNC_PIN, MS3_SSC_TX_PDCA_CHANNEL, pdca_enable_interrupt_reload_counter_zero(), pdca_enable_interrupt_transfer_complete(), pdca_get_reload_size(), pdca_get_transfer_status(), pdca_reload_channel(), PDCA_TRANSFER_COMPLETE, PDCA_TRANSFER_COUNTER_RELOAD_IS_ZERO, and sample_buffer.

void ms3_dac_set_volume ( U8 volume )

References MS3_LEFT_CHANNEL, MS3_RIGHT_CHANNEL, ms3_set_volume(), MS3_VOL_MAX, MS3_VOL_MIN, and volume.

void ms3_dac_setup	(	U32	sample_rate_hz,
		U8	num_channels,
		U8	bits_per_sample,
		bool	swap_channels,
		void(*)(U32 arg)	callback,
		U32	callback_opt,
		U32	pba_hz
	)

References _32_BITS_RATIO, pdca_channel_options_t::addr, callback, callback_opt, CS2200_FREF, cs2200_freq_clk_out(), ms3_output_params, MS3_SSC_TX_PDCA_CHANNEL, NULL, num_channels, pdca_enable(), pdca_init_channel(), PDCA_TRANSFER_SIZE_BYTE, PDCA_TRANSFER_SIZE_HALF_WORD, PDCA_TRANSFER_SIZE_WORD, and usb_stream_resync_frequency.

Referenced by ms3_dac_start().

void ms3_dac_start	(	U32	sample_rate_hz,
		U8	num_channels,
		U8	bits_per_sample,
		bool	swap_channels,
		void(*)(U32 arg)	callback,
		U32	callback_opt,
		U32	pba_hz
	)

References callback, gpio_enable_module(), gpio_set_gpio_pin(), INTC_register_interrupt(), ms3_dac_setup(), ms3_dac_stop(), and ms3_ssc_tx_pdca_int_handler().

void ms3_dac_stop ( void )

References gpio_enable_gpio(), ms3_dac_flush(), ms3_output_params, MS3_SSC_TX_PDCA_CHANNEL, NULL, pdca_disable(), and ssc_i2s_reset().

Referenced by ms3_dac_start().

Microchip® Advanced Software Framework

Macros

Functions