drivers: sensor: Add asynchronous sensor simulator driver

Introduces a new sensor simulator driver with asynchronous API support.
The driver allows for the simulation of sensor data with an internal FIFO.

Signed-off-by: Lars Thiemann <thiemann@cognid.de>

Author: ct-lt

drivers/sensor/CMakeLists.txt

@@ -60,6 +60,7 @@ add_subdirectory_ifdef(CONFIG_QDEC_SAM qdec_sam)
 add_subdirectory_ifdef(CONFIG_RPI_PICO_TEMP rpi_pico_temp)
 add_subdirectory_ifdef(CONFIG_S11059 s11059)
 add_subdirectory_ifdef(CONFIG_SBS_GAUGE sbs_gauge)
+add_subdirectory_ifdef(CONFIG_SENSOR_SIM_ASYNC sensor_sim_async)
 add_subdirectory_ifdef(CONFIG_SX9500 sx9500)
 add_subdirectory_ifdef(CONFIG_TH02 th02)
 add_subdirectory_ifdef(CONFIG_TSIC_XX6 tsic_xx6)

drivers/sensor/Kconfig

@@ -148,6 +148,7 @@ source "drivers/sensor/qdec_sam/Kconfig"
 source "drivers/sensor/rpi_pico_temp/Kconfig"
 source "drivers/sensor/s11059/Kconfig"
 source "drivers/sensor/sbs_gauge/Kconfig"
+source "drivers/sensor/sensor_sim_async/Kconfig"
 source "drivers/sensor/sx9500/Kconfig"
 source "drivers/sensor/th02/Kconfig"
 source "drivers/sensor/tsic_xx6/Kconfig"

drivers/sensor/sensor_sim_async/CMakeLists.txt

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+zephyr_library_sources(sensor_sim_async.c)

drivers/sensor/sensor_sim_async/Kconfig

@@ -0,0 +1,26 @@
+# Sensor data simulator
+
+# Copyright (c) 2025 COGNID Telematik GmbH
+# SPDX-License-Identifier: Apache-2.0
+
+DT_COMPAT_SENSOR_SIM_ASYNC := zephyr,sensor-sim-async
+
+config SENSOR_SIM_ASYNC
+	bool "Simple sensor simulator with Async API"
+	default y if $(dt_compat_enabled,$(DT_COMPAT_SENSOR_SIM_ASYNC))
+	select RING_BUFFER
+	select SENSOR_ASYNC_API
+	help
+	  Enable the sensor simulator.
+
+if SENSOR_SIM_ASYNC
+
+config SENSOR_SIM_ASYNC_SCALE
+	int "Internal scaling of the values"
+	default 1024
+	help
+	  Sensor values are internally saved as 16-bit integers with 1 LSB = 1 / SENSOR_SIM_ASYNC_SCALE.
+	  Default value is 1024 as it allows for a range of +/- 32 and a ~0.001 accuracy, which is a good compromise for
+	  sensors like accelerometers.
+
+endif