modules: afbr: Add basic functionality

- Add AFBR module as a HAL.
- Platform layer to support running AFBR API using Zephyr.
- Ability to instantiate on device-tree.
- Samples in the module proving foundations works.
- Zephyr Sensor API support, by introducing:
    - Read/Decode for SENSOR_CHAN_DISTANCE (1-D results).
    - Streaming mode for DATA_READY (1-D results).

Signed-off-by: Luis Ubieda <[email protected]>

Author: ubieda

MAINTAINERS.yml

@@ -4950,6 +4950,18 @@ West:
   labels:
     - "platform: ADI"
 
+"West project: hal_afbr":
+  status: maintained
+  maintainers:
+    - ubieda
+    - bperseghetti
+  collaborators:
+    - PetervdPerk-NXP
+    - jgoppert
+  files: []
+  labels:
+    - "platform: Broadcom"
+
 "West project: hal_ambiq":
   status: odd fixes
   collaborators:

drivers/sensor/CMakeLists.txt

@@ -6,6 +6,7 @@ add_subdirectory(ams)
 add_subdirectory(aosong)
 add_subdirectory(asahi_kasei)
 add_subdirectory(bosch)
+add_subdirectory(broadcom)
 add_subdirectory(espressif)
 add_subdirectory(everlight)
 add_subdirectory(honeywell)

drivers/sensor/Kconfig

@@ -92,6 +92,7 @@ source "drivers/sensor/ams/Kconfig"
 source "drivers/sensor/aosong/Kconfig"
 source "drivers/sensor/asahi_kasei/Kconfig"
 source "drivers/sensor/bosch/Kconfig"
+source "drivers/sensor/broadcom/Kconfig"
 source "drivers/sensor/espressif/Kconfig"
 source "drivers/sensor/everlight/Kconfig"
 source "drivers/sensor/honeywell/Kconfig"

drivers/sensor/broadcom/CMakeLists.txt

@@ -0,0 +1,5 @@
+# Copyright (c) 2025 Croxel Inc.
+# Copyright (c) 2025 CogniPilot Foundation
+# SPDX-License-Identifier: Apache-2.0
+
+add_subdirectory_ifdef(CONFIG_AFBR_S50 afbr_s50)

drivers/sensor/broadcom/Kconfig

@@ -0,0 +1,5 @@
+# Copyright (c) 2025 Croxel Inc.
+# Copyright (c) 2025 CogniPilot Foundation
+# SPDX-License-Identifier: Apache-2.0
+
+source "drivers/sensor/broadcom/afbr_s50/Kconfig"

drivers/sensor/broadcom/afbr_s50/CMakeLists.txt

@@ -0,0 +1,9 @@
+# Copyright (c) 2025 Croxel Inc.
+# Copyright (c) 2025 CogniPilot Foundation
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+zephyr_library_sources(
+	afbr_s50.c
+	afbr_s50_decoder.c
+)

drivers/sensor/broadcom/afbr_s50/Kconfig

@@ -0,0 +1,17 @@
+# Copyright (c) 2025 Croxel Inc.
+# Copyright (c) 2025 CogniPilot Foundation
+# SPDX-License-Identifier: Apache-2.0
+
+config AFBR_S50
+	bool "AFBR-S50 Time-of-Flight Sensor"
+	default y
+	depends on DT_HAS_BRCM_AFBR_S50_ENABLED
+	select SENSOR_ASYNC_API
+	select SPI
+	select SPI_RTIO
+	select RTIO_WORKQ
+	select AFBR_LIB
+	select PINCTRL
+	select PINCTRL_NON_STATIC
+	help
+	  Enable driver for the AFBR-S50 Time-of-Flight sensor.