nuttx/drivers/audio/Kconfig

#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#

menuconfig DRIVERS_AUDIO
	bool "Audio Device Support"
	default n
	---help---
		Enable support for audio device drivers.  This includes drivers for
		MP3, WMA and Ogg Vorbis encoding, decoding, as well as drivers for
		interfacing with external DSP chips to perform custom audio functions.

		NOTE: All of these drivers depend on support from the audio subsystem
		enabled with the AUDIO selection.

if DRIVERS_AUDIO

config AUDIO_TONE
	bool "Audio Tone Generator using PWM"
	default n
	depends on PWM && DRIVERS_AUDIO
	---help---
		This driver enables the Audio Tone Generator for NuttX.

if AUDIO_TONE

endif # AUDIO_TONE

config AUDIO_VS1053
	bool "VS1053 codec chip"
	default n
	depends on AUDIO
	---help---
		Select to enable support for the VS1053 Audio codec by VLSI Solutions.
		This chip provides encoding and decoding of MP3, WMA, AAC and Ogg
		Vorbis format audio.  It also has a general DSP which is user
		programmable to perform special audio (or any DSP) functions.

if AUDIO_VS1053

config VS1053_DEVICE_COUNT
	int "Number of VS1053 devices attached"
	default 1
	---help---
		Sets the number of VS1053 type devices available to the system.
		This is required to reserve global, static lower-half driver
		context pointers for the DREQ ISR to use for lookup when it needs
		to signal that additional data is being requested.

config VS1053_WORKER_STACKSIZE
	int "VS1053 worker thread stack size"
	default 768
	---help---
		Stack size to use with the VS1053 worker thread.

if AUDIO_DRIVER_SPECIFIC_BUFFERS

config VS1053_NUM_BUFFERS
	int "Number of Audio Pipeline Buffers to use"
	default 2
	---help---
		Sets the number of the Audio Pipeline Buffers used to deliver audio
		data to the VS1053 driver.  The minimum you should set this is
		2 buffers, which should be adequate for most media types.

config VS1053_BUFFER_SIZE
	int "Size of Audio Pipeline Buffers to use"
	default 8192
	---help---
		Sets the size of the Audio Pipeline Buffers used to deliver audio
		data to the VS1053 driver.  The minimum you should set this is
		2048 bytes.  The larger the buffer, the better CPU performance.

endif # AUDIO_DRIVER_SPECIFIC_BUFFERS
endif # AUDIO_VS1053

config AUDIO_CS43L22
	bool "CS43L22 audio chip"
	default n
	depends on AUDIO
	---help---
		Select to enable support for the CS43L22 Audio codec by Cirrus Logic.
		This chip is a lower level audio chip.. basically
		an exotic D-to-A.  It includes no built-in support for audio CODECS
		The CS43L22 provides:

			- Low power consumption
			- High SNR
			- Stereo digital microphone input
			- Digital Dynamic Range Controller (compressor / limiter)
			- Digital sidetone mixing
			- Ground-referenced headphone driver
			- Ground-referenced line outputs

		NOTE: This driver also depends on both I2C and I2S support although
		that dependency is not explicit here.

if AUDIO_CS43L22

config CS43L22_INITVOLUME
	int "CS43L22 initial volume setting"
	default 250

config CS43L22_INFLIGHT
	int "CS43L22 maximum in-flight audio buffers"
	default 2

config CS43L22_MSG_PRIO
	int "CS43L22 message priority"
	default 1

config CS43L22_BUFFER_SIZE
	int "CS43L22 preferred buffer size"
	default 8192

config CS43L22_NUM_BUFFERS
	int "CS43L22 preferred number of buffers"
	default 4

config CS43L22_WORKER_STACKSIZE
	int "CS43L22 worker thread stack size"
	default 768

config CS43L22_REGDUMP
	bool "CS43L22 register dump"
	default n
	---help---
		Enable logic to dump the contents of all CS43L22 registers.

config CS43L22_CLKDEBUG
	bool "CS43L22 clock analysis"
	default n
	---help---
		Enable logic to analyze CS43L22 clock configuration.

endif # AUDIO_CS43L22

config AUDIO_WM8776
	bool "WM8776 audio chip"
	default n
	depends on AUDIO
	---help---
		Select to enable support for the WM8776 Audio codec by Wolfson
		Microelectonics.

if AUDIO_WM8776

config WM8776_INFLIGHT
	int "WM8776 maximum in-flight audio buffers"
	default 2

config WM8776_MSG_PRIO
	int "WM8776 message priority"
	default 1

config WM8776_WORKER_STACKSIZE
	int "WM8776 worker thread stack size"
	default 768

config WM8776_SWAP_HPOUT
	bool "Swap WM8776 HP out signals"
	default n

endif # AUDIO_WM8776

config AUDIO_WM8904
	bool "WM8904 audio chip"
	default n
	depends on AUDIO
	---help---
		Select to enable support for the WM8904 Audio codec by Wolfson
		Microelectonics.  This chip is a lower level audio chip.. basically
		an exotic D-to-A.  It includes no built-in support for audio CODECS
		The WM8904 provides:

			- Low power consumption
			- High SNR
			- Stereo digital microphone input
			- Digital Dynamic Range Controller (compressor / limiter)
			- Digital sidetone mixing
			- Ground-referenced headphone driver
			- Ground-referenced line outputs

		NOTE: This driver also depends on both I2C and I2S support although
		that dependency is not explicit here.

if AUDIO_WM8904

config WM8904_INITVOLUME
	int "WM8904 initial volume setting"
	default 250

config WM8904_INFLIGHT
	int "WM8904 maximum in-flight audio buffers"
	default 2

config WM8904_MSG_PRIO
	int "WM8904 message priority"
	default 1

config WM8904_BUFFER_SIZE
	int "WM8904 preferred buffer size"
	default 8192

config WM8904_NUM_BUFFERS
	int "WM8904 preferred number of buffers"
	default 4

config WM8904_WORKER_STACKSIZE
	int "WM8904 worker thread stack size"
	default 768

config WM8904_REGDUMP
	bool "WM8904 register dump"
	default n
	---help---
		Enable logic to dump the contents of all WM8904 registers.

config WM8904_CLKDEBUG
	bool "WM8904 clock analysis"
	default n
	---help---
		Enable logic to analyze WM8904 clock configuration.

endif # AUDIO_WM8904

config AUDIO_NULL
	bool "NULL audio device"
	default n
	depends on AUDIO
	---help---
		A do-nothing audio device driver to simplify testing of audio
		decoders.

if AUDIO_NULL

config AUDIO_NULL_MSG_PRIO
	int "Null audio device message priority"
	default 1

config AUDIO_NULL_BUFFER_SIZE
	int "Null audio device preferred buffer size"
	default 8192

config AUDIO_NULL_NUM_BUFFERS
	int "Null audio device preferred number of buffers"
	default 4

config AUDIO_NULL_WORKER_STACKSIZE
	int "Null audio device worker thread stack size"
	default 768

endif # AUDIO_NULL

config AUDIO_I2S
	bool "Audio I2S"
	depends on AUDIO
	depends on I2S

endif # DRIVERS_AUDIO