331 lines
8.1 KiB
Plaintext
331 lines
8.1 KiB
Plaintext
# Kconfig - Micropower, 3-Axis, +/-200g Digital Accelerometer
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#
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# Copyright (c) 2018 Analog Devices Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig ADXL372
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bool "ADXL372 Three Axis High-g I2C/SPI accelerometer"
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depends on I2C || SPI
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help
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Enable driver for ADXL372 Three-Axis Digital Accelerometers.
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if ADXL372
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choice ADXL372_BUS_TYPE
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prompt "Interface type"
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help
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Select interface the digital interface type for the ADXL372
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config ADXL372_I2C
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depends on I2C
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bool "I2C Interface"
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config ADXL372_SPI
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depends on SPI
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bool "SPI Interface"
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endchoice
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if !HAS_DTS_I2C_DEVICE
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config ADXL372_DEV_NAME
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string "ADXL372 device name"
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depends on ADXL372_I2C
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default "ADXL372"
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config ADXL372_I2C_ADDR
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hex "I2C address for ADXL372"
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depends on ADXL372_I2C
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default 0x1D
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help
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I2C address of the ADXL372 sensor.
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0x1D: if MISO is pulled low
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0x53: if MISO is pulled high
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config ADXL372_I2C_MASTER_DEV_NAME
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string "I2C master where ADXL372 is connected"
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depends on ADXL372_I2C
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default "I2C_0"
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help
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Specify the device name of the I2C master device to which the
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ADXL372 chip is connected.
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endif # !HAS_DTS_I2C_DEVICE
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if !HAS_DTS_SPI_DEVICE
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config ADXL372_DEV_NAME
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string "ADXL372 device name"
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depends on ADXL372_SPI
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default "ADXL372"
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config ADXL372_SPI_DEV_NAME
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string "SPI device where ADXL372 is connected"
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depends on ADXL372_SPI
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default "SPI_0"
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help
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Specify the device name of the SPI device to which ADXL372 is
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connected.
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config ADXL372_SPI_DEV_SLAVE
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int "SPI Slave Select where ADXL372 is connected"
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depends on ADXL372_SPI
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default 2
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help
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Specify the slave select pin of the SPI to which ADXL372 is
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connected.
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config ADXL372_SPI_GPIO_CS
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bool "ADXL372 SPI CS through a GPIO pin"
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depends on ADXL372_SPI
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help
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This option is useful if one needs to manage SPI CS through a GPIO
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pin to by-pass the SPI controller's CS logic.
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config ADXL372_SPI_BUS_FREQ
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int "ADXL372 SPI bus speed in Hz"
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range 10000 10000000
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default 8000000
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help
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This is the maximum supported SPI bus frequency. The chip supports a
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frequency up to 10MHz.
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endif # !HAS_DTS_SPI_DEVICE
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if !HAS_DTS_SPI_PINS
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config ADXL372_SPI_GPIO_CS_DRV_NAME
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string "GPIO driver's name to use to drive SPI CS through"
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default "GPIO_0"
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depends on ADXL372_SPI_GPIO_CS
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help
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This option is mandatory to set which GPIO controller to use in order
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to actually emulate the SPI CS.
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config ADXL372_SPI_GPIO_CS_PIN
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int "GPIO PIN to use to drive SPI CS through"
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default 0
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depends on ADXL372_SPI_GPIO_CS
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help
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This option is mandatory to set which GPIO pin to use in order
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to actually emulate the SPI CS.
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endif # !HAS_DTS_SPI_PINS
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choice
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prompt "Operating mode"
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default ADXL372_PEAK_DETECT_MODE
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config ADXL372_PEAK_DETECT_MODE
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bool "Max Peak detect mode"
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help
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In most high-g applications, a single (3-axis) acceleration sample at
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the peak of an impact event contains sufficient information
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about the event, and the full acceleration history is not required.
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In this mode the device returns only the over threshold
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Peak Acceleration between two consecutive sample fetches.
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config ADXL372_MEASUREMENT_MODE
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bool "Measurement Mode"
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help
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In this mode, acceleration data is provided continuously at the
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output data rate (ODR).
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endchoice
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choice
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prompt "Accelerometer sampling frequency (ODR)"
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default ADXL372_ODR_6400HZ if ADXL372_PEAK_DETECT_MODE
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default ADXL372_ODR_400HZ if ADXL372_MEASUREMENT_MODE
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config ADXL372_ODR_400HZ
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bool "400 Hz"
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config ADXL372_ODR_800HZ
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bool "800 Hz"
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config ADXL372_ODR_1600HZ
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bool "1600 Hz"
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config ADXL372_ODR_3200HZ
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bool "3200 Hz"
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config ADXL372_ODR_6400HZ
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bool "6400 Hz"
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endchoice
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choice
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prompt "Low-Pass (Antialiasing) Filter corner frequency"
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default ADXL372_BW_200HZ if ADXL372_ODR_400HZ
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default ADXL372_BW_400HZ if ADXL372_ODR_800HZ
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default ADXL372_BW_800HZ if ADXL372_ODR_1600HZ
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default ADXL372_BW_1600HZ if ADXL372_ODR_3200HZ
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default ADXL372_BW_3200HZ if ADXL372_ODR_6400HZ
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help
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High g events often include acceleration content over a wide range
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of frequencies. The ADC of the ADXL372 samples the input acceleration
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at the user selected ODR.
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In the absence of antialiasing filters, input signals whose frequency
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is more than half the ODR alias or fold into the measurement bandwidth
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can lead to inaccurate measurements.
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config ADXL372_LPF_DISABLE
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bool "Disabled"
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config ADXL372_BW_200HZ
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bool "200 Hz"
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config ADXL372_BW_400HZ
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bool "400 Hz"
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config ADXL372_BW_800HZ
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bool "800 Hz"
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config ADXL372_BW_1600HZ
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bool "1600 Hz"
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config ADXL372_BW_3200HZ
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bool "3200 Hz"
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endchoice
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choice
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prompt "High-Pass Filter corner frequency"
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default ADXL372_HPF_CORNER0
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help
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The ADXL372 offers a one-pole, high-pass filter with a user
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selectable −3 dB frequency. Applications that do not require dc
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acceleration measurements can use the high-pass filter to minimize
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constant or slow varying offset errors including initial bias,
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bias drift due to temperature, and bias drift due to supply voltage
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config ADXL372_HPF_DISABLE
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bool "Disabled"
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config ADXL372_HPF_CORNER0
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bool "ODR/210"
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config ADXL372_HPF_CORNER1
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bool "ODR/411"
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config ADXL372_HPF_CORNER2
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bool "ODR/812"
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config ADXL372_HPF_CORNER3
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bool "ODR/1616"
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endchoice
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config ADXL372_ACTIVITY_THRESHOLD
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int "Activity threshold in mg"
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range 0 200000
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default 500
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help
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Threshold for activity detection.
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config ADXL372_INACTIVITY_THRESHOLD
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int "In-activity threshold in mg"
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range 0 200000
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default 400
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help
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Threshold for in-activity detection.
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config ADXL372_ACTIVITY_TIME
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int "Activity time"
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range 0 255
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default 1
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help
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The activity timer implements a robust activity detection that
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minimizes false positive motion triggers. When the timer is used,
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only sustained motion can trigger activity detection.
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Number of multiples of 3.3 ms activity timer for which above threshold
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acceleration is required to detect activity. It is 3.3 ms per code
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for 6400 Hz ODR, and it is 6.6 ms per code for 3200 Hz ODR and below.
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config ADXL372_INACTIVITY_TIME
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int "In-activity time"
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range 0 255
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default 2
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help
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The time that all enabled axes must be lower than the inactivity
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threshold for an inactivity event to be detected. Number of multiples
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of 26 ms inactivity timer for which below threshold acceleration is
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required to detect inactivity. It is 26 ms per code for 3200 Hz ODR
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and below, and it is 13 ms per code for 6400 Hz ODR.
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config ADXL372_REFERENCED_ACTIVITY_DETECTION_MODE
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bool "Use referenced activity/in-activity detection"
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default y
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help
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Activity detection can be configured as referenced or absolute.
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When using absolute activity detection, acceleration samples are
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compared directly to a user set threshold to determine whether
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motion is present. In many applications, it is advantageous for
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activity detection to be based not on an absolute threshold,
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but on a deviation from a reference point or orientation.
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choice
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prompt "Trigger mode"
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default ADXL372_TRIGGER_NONE
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help
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Specify the type of triggering used by the driver.
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config ADXL372_TRIGGER_NONE
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bool "No trigger"
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config ADXL372_TRIGGER_GLOBAL_THREAD
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bool "Use global thread"
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depends on GPIO
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select ADXL372_TRIGGER
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config ADXL372_TRIGGER_OWN_THREAD
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bool "Use own thread"
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depends on GPIO
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select ADXL372_TRIGGER
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endchoice
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config ADXL372_TRIGGER
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bool
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if !HAS_DTS_GPIO_DEVICE
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config ADXL372_GPIO_DEV_NAME
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string "GPIO device"
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default "GPIO_0"
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depends on ADXL372_TRIGGER
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help
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The GPIO device's name where the ADXL372 interrupt 1 or 2 pin is
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connected.
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config ADXL372_GPIO_PIN_NUM
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int "Interrupt GPIO pin number"
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default 0
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depends on ADXL372_TRIGGER
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help
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The GPIO pin number receiving the interrupt signal from the
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ADXL372 sensor.
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endif # !HAS_DTS_GPIO_DEVICE
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config ADXL372_THREAD_PRIORITY
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int "Thread priority"
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depends on ADXL372_TRIGGER_OWN_THREAD && ADXL372_TRIGGER
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default 10
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help
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Priority of thread used by the driver to handle interrupts.
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config ADXL372_THREAD_STACK_SIZE
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int "Thread stack size"
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depends on ADXL372_TRIGGER_OWN_THREAD && ADXL372_TRIGGER
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default 1024
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help
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Stack size of thread used by the driver to handle interrupts.
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endif #ADXL372
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