drivers/sensor: add support to ISM330DHCX IMU sensor

The ISM330DHCX is a ultra-low power IMU with a 3D digital accelerometer
and 3D digital gyroscope tailored for Industry 4.0 applications, which
can be interfaced through either I2C or SPI bus.

https://www.st.com/resource/en/datasheet/ism330dhcx.pdf

This driver is based on stmemsc i/f v1.02.

Signed-off-by: Armando Visconti <[email protected]>

Author: avisconti

drivers/sensor/CMakeLists.txt

@@ -28,6 +28,7 @@ add_subdirectory_ifdef(CONFIG_HTS221		hts221)
 add_subdirectory_ifdef(CONFIG_IIS2DLPC		iis2dlpc)
 add_subdirectory_ifdef(CONFIG_IIS3DHHC		iis3dhhc)
 add_subdirectory_ifdef(CONFIG_ISL29035		isl29035)
+add_subdirectory_ifdef(CONFIG_ISM330DHCX	ism330dhcx)
 add_subdirectory_ifdef(CONFIG_LIS2DH		lis2dh)
 add_subdirectory_ifdef(CONFIG_LIS2DS12		lis2ds12)
 add_subdirectory_ifdef(CONFIG_LIS2DW12          lis2dw12)

drivers/sensor/Kconfig

@@ -85,6 +85,8 @@ source "drivers/sensor/iis3dhhc/Kconfig"
 
 source "drivers/sensor/isl29035/Kconfig"
 
+source "drivers/sensor/ism330dhcx/Kconfig"
+
 source "drivers/sensor/lis2dh/Kconfig"
 
 source "drivers/sensor/lis2ds12/Kconfig"

drivers/sensor/ism330dhcx/CMakeLists.txt

@@ -0,0 +1,13 @@
+# ST Microelectronics ISM330DHCX 6-axis IMU sensor driver
+#
+# Copyright (c) 2020 STMicroelectronics
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+zephyr_library()
+
+zephyr_library_sources_ifdef(CONFIG_ISM330DHCX            ism330dhcx.c)
+zephyr_library_sources_ifdef(CONFIG_ISM330DHCX            ism330dhcx_i2c.c)
+zephyr_library_sources_ifdef(CONFIG_ISM330DHCX            ism330dhcx_spi.c)
+zephyr_library_sources_ifdef(CONFIG_ISM330DHCX_SENSORHUB  ism330dhcx_shub.c)
+zephyr_library_sources_ifdef(CONFIG_ISM330DHCX_TRIGGER    ism330dhcx_trigger.c)

drivers/sensor/ism330dhcx/Kconfig

@@ -0,0 +1,171 @@
+# ST Microelectronics ISM330DHCX 6-axis IMU sensor driver
+
+# Copyright (c) 2020 STMicroelectronics
+# SPDX-License-Identifier: Apache-2.0
+
+menuconfig ISM330DHCX
+	bool "ISM330DHCX I2C/SPI accelerometer and gyroscope Chip"
+	depends on (I2C && HAS_DTS_I2C) || SPI
+	select HAS_STMEMSC
+	select USE_STDC_ISM330DHCX
+	help
+	  Enable driver for ISM330DHCX accelerometer and gyroscope
+	  sensor.
+
+if ISM330DHCX
+
+choice ISM330DHCX_TRIGGER_MODE
+	prompt "Trigger mode"
+	help
+	  Specify the type of triggering to be used by the driver.
+
+config ISM330DHCX_TRIGGER_NONE
+	bool "No trigger"
+
+config ISM330DHCX_TRIGGER_GLOBAL_THREAD
+	bool "Use global thread"
+	depends on GPIO
+	select ISM330DHCX_TRIGGER
+
+config ISM330DHCX_TRIGGER_OWN_THREAD
+	bool "Use own thread"
+	depends on GPIO
+	select ISM330DHCX_TRIGGER
+
+endchoice
+
+config ISM330DHCX_TRIGGER
+	bool
+
+if ISM330DHCX_TRIGGER
+
+config ISM330DHCX_THREAD_PRIORITY
+	int "Thread priority"
+	depends on ISM330DHCX_TRIGGER_OWN_THREAD
+	default 10
+	help
+	  Priority of thread used by the driver to handle interrupts.
+
+config ISM330DHCX_THREAD_STACK_SIZE
+	int "Thread stack size"
+	depends on ISM330DHCX_TRIGGER_OWN_THREAD
+	default 1024
+	help
+	  Stack size of thread used by the driver to handle interrupts.
+
+choice ISM330DHCX_INT_PIN
+	prompt "Sensor INT pin number"
+	default ISM330DHCX_INT_PIN_1
+	help
+	  The number of ISM330DHCX int pin used to generate interrupt to cpu.
+	  Supported values are int1 or int2
+
+config ISM330DHCX_INT_PIN_1
+	bool "int1"
+
+config ISM330DHCX_INT_PIN_2
+	bool "int2"
+endchoice
+
+endif # ISM330DHCX_TRIGGER
+
+config ISM330DHCX_ENABLE_TEMP
+	bool "Enable temperature"
+	help
+	  Enable/disable temperature
+
+config ISM330DHCX_SENSORHUB
+	bool "Enable I2C sensorhub feature"
+	help
+	  Enable/disable internal sensorhub. You can enable
+	  a maximum of two external sensors (if more than two are enabled
+	  the system would enumerate only the first two found)
+
+if ISM330DHCX_SENSORHUB
+
+config ISM330DHCX_EXT_LIS2MDL
+	bool "Enable LIS2MDL as external sensor"
+
+config ISM330DHCX_EXT_IIS2MDC
+	bool "Enable IIS2MDC as external sensor"
+
+config ISM330DHCX_EXT_LPS22HH
+	bool "Enable LPS22HH as external sensor"
+
+config ISM330DHCX_EXT_HTS221
+	bool "Enable HTS221 as external sensor"
+
+config ISM330DHCX_EXT_LPS22HB
+	bool "Enable LPS22HB as external sensor"
+
+endif # ISM330DHCX_SENSORHUB
+
+menu "Attributes"
+
+config ISM330DHCX_GYRO_FS
+	int "Gyroscope full-scale range"
+	default 0
+	help
+	  Specify the default gyroscope full-scale range.
+	  An X value for the config represents a range of +/- X degree per
+	  second. Valid values are:
+	  0:  Full Scale selected at runtime
+	  125:   +/- 125dps
+	  250:   +/- 250dps
+	  500:   +/- 500dps
+	  1000:  +/- 1000dps
+	  2000:  +/- 2000dps
+
+config ISM330DHCX_GYRO_ODR
+	int "Gyroscope Output data rate frequency"
+	range 0 10
+	default 0
+	help
+	  Specify the default accelerometer output data rate expressed in
+	  samples per second (Hz).
+	  0: ODR selected at runtime
+	  1: 12.5Hz
+	  2: 26Hz
+	  3: 52Hz
+	  4: 104Hz
+	  5: 208Hz
+	  6: 416Hz
+	  7: 833Hz
+	  8: 1660Hz
+	  9: 3330Hz
+	  10: 6660Hz
+
+config ISM330DHCX_ACCEL_FS
+	int "Accelerometer full-scale range"
+	default 0
+	help
+	  Specify the default accelerometer full-scale range.
+	  An X value for the config represents a range of +/- X G. Valid values
+	  are:
+	  0:  Full Scale selected at runtime
+	  2:  +/- 2g
+	  4:  +/- 4g
+	  8:  +/- 8g
+	  16: +/- 16g
+
+config ISM330DHCX_ACCEL_ODR
+	int "Accelerometer Output data rate frequency"
+	range 0 10
+	default 0
+	help
+	  Specify the default accelerometer output data rate expressed in
+	  samples per second (Hz).
+	  0: ODR selected at runtime
+	  1: 12.5Hz
+	  2: 26Hz
+	  3: 52Hz
+	  4: 104Hz
+	  5: 208Hz
+	  6: 416Hz
+	  7: 833Hz
+	  8: 1660Hz
+	  9: 3330Hz
+	  10: 6660Hz
+endmenu
+
+endif # ISM330DHCX