nuttx/drivers/analog/Kconfig

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

config ADC
	bool "Analog-to-Digital Conversion"
	default n
	---help---
		Select to enable support for analog input device support.  This includes
		not only Analog-to-Digital Converters (ADC) but also amplifiers and
		analog multiplexers.

		This selection enables:

			- The upper half, device-independent ADC character driver, and
			- Selection of common lower half ADC drivers.

		MCU-specific, lower half drivers may be selected independently of
		CONFIG_ADC.  However, if CONFIG_ADC is selected, then it is assume
		that lower half ADC drivers will be used only with the common ADC
		upper half driver.

if ADC

config ADC_FIFOSIZE
	int "ADC buffer size"
	default 8
	---help---
		This variable defines the size of the ADC ring buffer that is used
		to queue received ADC data until they can be retrieved by the
		application by reading from the ADC character device.  NOTE:  Since
		this is a ring buffer, the actual number of bytes that can be
		retained in buffer is (ADC_FIFOSIZE - 1).

config ADC_NPOLLWAITERS
	int "Number of poll waiters"
	default 2
	depends on !DISABLE_POLL
	---help---
		Maximum number of threads that can be waiting on poll.

config ADC_ADS1242
	bool "TI ADS1242 support"
	default n
	select SPI
	---help---
		Enable driver support for the ADS1242 24-Bit SPI powered ADC.

		This driver supports reading the ADC conversion result as well as
		configuring the ADC, setting the input channel, etc. is implemented
		via ioctl calls. However, it does not yet implement the standard ADC
		interface.

config ADC_ADS125X
	bool "TI ADS1255/ADS1256 support"
	default n
	select SPI
	select SCHED_HPWORK

if ADC_ADS125X

config ADS1255_FREQUENCY
	int "ADS1255/ADS1256 SPI frequency"
	default 1000000

endif # ADC_ADS125X

config ADC_LTC1867L
	bool "LTC 1863L/1867L support"
	default n
	select SPI
	---help---
		Enable driver support for the LTC 1863L (12 bit) and LTC 1867L (16 bit) SPI powered ADC.

		Note that the ADC conversion is started via the ANIOC_TRIGGER iotcl.

if ADC_LTC1867L

config LTC1867L_FREQUENCY
	int "LTC 1863L/1867L SPI frequency"
	default 1000000
	---help---
		LTC 1863L/1867L SPI frequency. Maximum is 20 MHz.

endif # ADC_LTC1867L

config ADC_PGA11X
	bool "TI PGA112/3/6/7 support"
	default n
	select SPI
	---help---
		Enables support for the  PGA112, PGA113, PGA116, PGA117 Zer<65>-Drift
		PROGRAMMABLE GAIN AMPLIFIER with MUX

if ADC_PGA11X

config PGA11X_SPIFREQUENCY
	int "TI PGA112/3/6/7 SPI frequency"
	default 1000000
	---help---
		PGA11x SPI frequency.

config PGA11X_SPIMODE
	int "TI PGA112/3/6/7 SPI mode"
	default 0
	---help---
		PGA11x SPI mode.  The specification says that the device operates in Mode 0 or
		Mode 3.  But sometimes you need to tinker with this to get things to work
		correctly. Default:  Mode 0

config PGA11X_DAISYCHAIN
	bool "TI PGA112/3/6/7 daisy chain mode"
	default n
	---help---
		Enable support to use two PGA116/7's in Daisy Chain configuration.

config PGA11X_MULTIPLE
	bool "Multiple TI PGA112/3/6/7 support"
	default n
	depends on !PGA11X_DAISYCHAIN
	---help---
		Can be defined to support multiple PGA11X devices on board with separate
		chip selects (not daisy chained).  Each device will require a customized
		SPI interface to distinguish them when SPI_SELECT is called with
		devid=SPIDEV_MUX(n).

endif # if ADC_PGA11X

endif # ADC

config COMP
	bool "Analog Comparator"
	default n
	---help---
		Select to enable support for Analog Comparators (COMPs).

config DAC
	bool "Digital-to-Analog Conversion"
	default n
	---help---
		Select to enable support for Digital-to-Analog Converters (DACs).

if DAC

config DAC_AD5410
	bool "AD5410 support"
	default n
	select SPI

config DAC7571
	bool "DAC7571 support"
	default n
	select I2C
	---help---
		Enable driver support for the Texas Instruments DAC7571 dac.

config DAC7571_I2C_FREQUENCY
	int "DAC7571 I2C frequency"
	default 400000
	depends on DAC7571

endif # DAC

config OPAMP
	bool "Operational Amplifier"
	default n
	---help---
		Select to enable support for Operational Amplifiers (OPAMPs).

config LMP92001
	bool "LMP92001 support"
	default n
	select I2C
	---help---
		Enable driver support for the Texas Instruments LMP92001.

config LMP92001_I2C_FREQUENCY
	int "LMP92001 I2C frequency"
	default 400000
	depends on LMP92001