drivers: sensor: wsen_hids_2525020210002: add sensor driver

wm-eisos · aescolar · commit fb45c6d93a79 · 2024-10-22T14:03:08.000+02:00
Add wsen_hids_2525020210002 driver with
the corrected name and compatibility with
the hal update as well as added new features.

Signed-off-by: Wajdi ELMuhtadi &lt;wajdi.elmuhtadi@we-online.com&gt;
diff --git a/doc/releases/release-notes-4.0.rst b/doc/releases/release-notes-4.0.rst
@@ -287,6 +287,11 @@ Drivers and Sensors
     :dtcompatible:`jedec,jc-42.4-temp` compatible string instead to the ``microchip,mcp9808``
     string.
 
+  * WE
+
+    * Added Würth Elektronik HIDS-2525020210002
+      :dtcompatible:`we,wsen-hids-2525020210002` humidity sensor driver.
+
 * Serial
 
   * LiteX: Renamed the ``compatible`` from ``litex,uart0`` to :dtcompatible:`litex,uart`.
diff --git a/drivers/sensor/wsen/CMakeLists.txt b/drivers/sensor/wsen/CMakeLists.txt
@@ -1,5 +1,7 @@
 # Copyright (c) 2024 Analog Devices, Inc.
+# Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
 # SPDX-License-Identifier: Apache-2.0
 
 # zephyr-keep-sorted-start
+add_subdirectory_ifdef(CONFIG_WSEN_HIDS_2525020210002 wsen_hids_2525020210002)
 # zephyr-keep-sorted-stop
diff --git a/drivers/sensor/wsen/Kconfig b/drivers/sensor/wsen/Kconfig
@@ -1,5 +1,7 @@
 # Copyright (c) 2024 Analog Devices, Inc.
+# Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
 # SPDX-License-Identifier: Apache-2.0
 
 # zephyr-keep-sorted-start
+source "drivers/sensor/wsen/wsen_hids_2525020210002/Kconfig"
 # zephyr-keep-sorted-stop
diff --git a/drivers/sensor/wsen/wsen_hids_2525020210002/CMakeLists.txt b/drivers/sensor/wsen/wsen_hids_2525020210002/CMakeLists.txt
@@ -0,0 +1,6 @@
+# Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+
+zephyr_library_sources(wsen_hids_2525020210002.c)
diff --git a/drivers/sensor/wsen/wsen_hids_2525020210002/Kconfig b/drivers/sensor/wsen/wsen_hids_2525020210002/Kconfig
@@ -0,0 +1,11 @@
+# Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+config WSEN_HIDS_2525020210002
+	bool "WSEN-HIDS-2525020210002 humidity sensor"
+	default y
+	depends on DT_HAS_WE_WSEN_HIDS_2525020210002_ENABLED
+	select I2C
+	select HAS_WESENSORS
+	help
+	  Enable driver for the WSEN-HIDS-2525020210002 I2C-based humidity sensor.
diff --git a/drivers/sensor/wsen/wsen_hids_2525020210002/wsen_hids_2525020210002.c b/drivers/sensor/wsen/wsen_hids_2525020210002/wsen_hids_2525020210002.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#define DT_DRV_COMPAT we_wsen_hids_2525020210002
+
+#include <stdlib.h>
+
+#include <zephyr/sys/__assert.h>
+#include <zephyr/sys/byteorder.h>
+#include <zephyr/logging/log.h>
+
+#include "wsen_hids_2525020210002.h"
+
+LOG_MODULE_REGISTER(WSEN_HIDS_2525020210002, CONFIG_SENSOR_LOG_LEVEL);
+
+static const hids_measureCmd_t precision_cmds[] = {HIDS_MEASURE_LPM, HIDS_MEASURE_MPM,
+						   HIDS_MEASURE_HPM};
+
+static const hids_measureCmd_t heater_cmds[] = {HIDS_HEATER_200_MW_01_S, HIDS_HEATER_200_MW_100_MS,
+						HIDS_HEATER_110_MW_01_S, HIDS_HEATER_110_MW_100_MS,
+						HIDS_HEATER_20_MW_01_S,  HIDS_HEATER_20_MW_100_MS};
+
+static int hids_2525020210002_sample_fetch(const struct device *dev, enum sensor_channel chan)
+{
+	struct hids_2525020210002_data *data = dev->data;
+
+	hids_measureCmd_t cmd;
+
+	int32_t raw_temperature;
+	int32_t raw_humidity;
+
+	switch (chan) {
+	case SENSOR_CHAN_ALL:
+	case SENSOR_CHAN_AMBIENT_TEMP:
+	case SENSOR_CHAN_HUMIDITY:
+		break;
+	default:
+		LOG_ERR("Fetching is not supported on channel %d.", chan);
+		return -ENOTSUP;
+	}
+
+	if (data->sensor_precision == hids_2525020210002_precision_High &&
+	    data->sensor_heater != hids_2525020210002_heater_Off) {
+		cmd = heater_cmds[data->sensor_heater - 1];
+	} else {
+		cmd = precision_cmds[data->sensor_precision];
+	}
+
+	if (HIDS_Sensor_Measure_Raw(&data->sensor_interface, cmd, &raw_temperature,
+				    &raw_humidity) != WE_SUCCESS) {
+		LOG_ERR("Failed to fetch data sample");
+		return -EIO;
+	}
+
+	switch (chan) {
+	case SENSOR_CHAN_ALL:
+		data->temperature = raw_temperature;
+		data->humidity = raw_humidity;
+		break;
+	case SENSOR_CHAN_AMBIENT_TEMP:
+		data->temperature = raw_temperature;
+		break;
+	case SENSOR_CHAN_HUMIDITY:
+		data->humidity = raw_humidity;
+		break;
+	default:
+		return -ENOTSUP;
+	}
+
+	return 0;
+}
+
+static int hids_2525020210002_channel_get(const struct device *dev, enum sensor_channel chan,
+					  struct sensor_value *val)
+{
+	struct hids_2525020210002_data *data = dev->data;
+
+	switch (chan) {
+	case SENSOR_CHAN_AMBIENT_TEMP:
+		val->val1 = data->temperature / 1000;
+		val->val2 = ((int32_t)data->temperature % 1000) * (1000000 / 1000);
+		break;
+	case SENSOR_CHAN_HUMIDITY:
+		val->val1 = data->humidity / 1000;
+		val->val2 = ((int32_t)data->humidity % 1000) * (1000000 / 1000);
+		break;
+	default:
+		LOG_ERR("Channel not supported %d", chan);
+		return -ENOTSUP;
+	}
+
+	return 0;
+}
+
+/* Set precision configuration. */
+static int hids_2525020210002_precision_set(const struct device *dev,
+					    const struct sensor_value *precision)
+{
+	struct hids_2525020210002_data *data = dev->data;
+
+	if (precision->val1 < hids_2525020210002_precision_Low ||
+	    precision->val1 > hids_2525020210002_precision_High || precision->val2 != 0) {
+		LOG_ERR("Bad precision configuration %d", precision->val1);
+		return -EINVAL;
+	}
+
+	data->sensor_precision = (hids_2525020210002_precision_t)precision->val1;
+
+	return 0;
+}
+
+/* Set heater option. */
+static int hids_2525020210002_heater_set(const struct device *dev,
+					 const struct sensor_value *heater)
+{
+	struct hids_2525020210002_data *data = dev->data;
+
+	if (heater->val1 < hids_2525020210002_heater_Off ||
+	    heater->val1 > hids_2525020210002_heater_On_20mW_100ms || heater->val2 != 0) {
+		LOG_ERR("Bad heater option %d", heater->val1);
+		return -EINVAL;
+	}
+
+	data->sensor_heater = (hids_2525020210002_heater_t)heater->val1;
+
+	return 0;
+}
+
+static int hids_2525020210002_attr_set(const struct device *dev, enum sensor_channel chan,
+				       enum sensor_attribute attr, const struct sensor_value *val)
+{
+
+	if (chan != SENSOR_CHAN_ALL) {
+		LOG_WRN("attr_set() is not supported on channel %d.", chan);
+		return -ENOTSUP;
+	}
+
+	switch ((int)attr) {
+	case SENSOR_ATTR_WSEN_HIDS_2525020210002_PRECISION:
+		return hids_2525020210002_precision_set(dev, val);
+	case SENSOR_ATTR_WSEN_HIDS_2525020210002_HEATER:
+		return hids_2525020210002_heater_set(dev, val);
+	default:
+		LOG_ERR("Operation not supported.");
+		return -ENOTSUP;
+	}
+
+	return 0;
+}
+
+static int hids_2525020210002_attr_get(const struct device *dev, enum sensor_channel chan,
+				       enum sensor_attribute attr, struct sensor_value *val)
+{
+	struct hids_2525020210002_data *data = dev->data;
+
+	if (chan != SENSOR_CHAN_ALL) {
+		LOG_WRN("attr_get() is not supported on channel %d.", chan);
+		return -ENOTSUP;
+	}
+
+	if (val == NULL) {
+		LOG_WRN("address of passed value is NULL.");
+		return -EFAULT;
+	}
+
+	switch ((int)attr) {
+	case SENSOR_ATTR_WSEN_HIDS_2525020210002_PRECISION:
+		val->val1 = data->sensor_precision;
+		val->val2 = 0;
+		break;
+	case SENSOR_ATTR_WSEN_HIDS_2525020210002_HEATER:
+		val->val1 = data->sensor_heater;
+		val->val2 = 0;
+		break;
+	default:
+		LOG_ERR("Operation not supported.");
+		return -ENOTSUP;
+	}
+
+	return 0;
+}
+
+static const struct sensor_driver_api hids_2525020210002_driver_api = {
+	.attr_set = hids_2525020210002_attr_set,
+	.attr_get = hids_2525020210002_attr_get,
+	.sample_fetch = hids_2525020210002_sample_fetch,
+	.channel_get = hids_2525020210002_channel_get,
+};
+
+static int hids_2525020210002_init(const struct device *dev)
+{
+	const struct hids_2525020210002_config *const config = dev->config;
+	struct hids_2525020210002_data *data = dev->data;
+	struct sensor_value precision, heater;
+
+	/* Initialize WE sensor interface */
+	HIDS_Get_Default_Interface(&data->sensor_interface);
+	data->sensor_interface.interfaceType = WE_i2c;
+	if (!i2c_is_ready_dt(&config->bus_cfg.i2c)) {
+		LOG_ERR("I2C bus device not ready");
+		return -ENODEV;
+	}
+	data->sensor_interface.handle = (void *)&config->bus_cfg.i2c;
+
+	/* First communication test - check device ID */
+	if (HIDS_Sensor_Init(&data->sensor_interface) != WE_SUCCESS) {
+		LOG_ERR("Failed to read device ID.");
+		return -EIO;
+	}
+
+	precision.val1 = config->precision;
+	precision.val2 = 0;
+
+	if (hids_2525020210002_precision_set(dev, &precision) < 0) {
+		LOG_ERR("Failed to set precision configuration.");
+		return -EIO;
+	}
+
+	heater.val1 = config->heater;
+	heater.val2 = 0;
+
+	if (hids_2525020210002_heater_set(dev, &heater) < 0) {
+		LOG_ERR("Failed to set heater option.");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+/*
+ * Main instantiation macro.
+ */
+#define HIDS_2525020210002_DEFINE(inst)                                                            \
+	static struct hids_2525020210002_data hids_2525020210002_data_##inst;                      \
+	static const struct hids_2525020210002_config hids_2525020210002_config_##inst = {         \
+		.bus_cfg = {.i2c = I2C_DT_SPEC_INST_GET(inst)},                                    \
+		.precision = (hids_2525020210002_precision_t)(DT_INST_ENUM_IDX(inst, precision)),  \
+		.heater = (hids_2525020210002_heater_t)(DT_INST_ENUM_IDX(inst, heater)),           \
+	};                                                                                         \
+	SENSOR_DEVICE_DT_INST_DEFINE(inst, hids_2525020210002_init, NULL,                          \
+				     &hids_2525020210002_data_##inst,                              \
+				     &hids_2525020210002_config_##inst, POST_KERNEL,               \
+				     CONFIG_SENSOR_INIT_PRIORITY, &hids_2525020210002_driver_api);
+
+DT_INST_FOREACH_STATUS_OKAY(HIDS_2525020210002_DEFINE)
diff --git a/drivers/sensor/wsen/wsen_hids_2525020210002/wsen_hids_2525020210002.h b/drivers/sensor/wsen/wsen_hids_2525020210002/wsen_hids_2525020210002.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_DRIVERS_SENSOR_WSEN_HIDS_2525020210002_WSEN_HIDS_2525020210002_H_
+#define ZEPHYR_DRIVERS_SENSOR_WSEN_HIDS_2525020210002_WSEN_HIDS_2525020210002_H_
+
+#include <zephyr/drivers/gpio.h>
+#include <zephyr/drivers/sensor.h>
+
+#include <weplatform.h>
+
+#include "WSEN_HIDS_2525020210002_hal.h"
+
+#include <zephyr/drivers/i2c.h>
+#include <zephyr/drivers/sensor/wsen_hids_2525020210002.h>
+
+struct hids_2525020210002_data {
+	/* WE sensor interface configuration */
+	WE_sensorInterface_t sensor_interface;
+
+	/* Last humidity sample */
+	int32_t humidity;
+
+	/* Last temperature sample */
+	int32_t temperature;
+
+	hids_2525020210002_precision_t sensor_precision;
+
+	hids_2525020210002_heater_t sensor_heater;
+};
+
+struct hids_2525020210002_config {
+	union {
+		const struct i2c_dt_spec i2c;
+	} bus_cfg;
+
+	const hids_2525020210002_precision_t precision;
+
+	const hids_2525020210002_heater_t heater;
+};
+
+#endif /* ZEPHYR_DRIVERS_SENSOR_WSEN_HIDS_2525020210002_WSEN_HIDS_2525020210002_H_ */
diff --git a/dts/bindings/sensor/we,wsen-hids-2525020210002.yaml b/dts/bindings/sensor/we,wsen-hids-2525020210002.yaml
@@ -0,0 +1,41 @@
+# Copyright (c) 2024 Würth Elektronik eiSos GmbH & Co. KG
+# SPDX-License-Identifier: Apache-2.0
+
+description: |
+    Würth Elektronik WSEN-HIDS-2525020210002 humidity sensor
+
+compatible: "we,wsen-hids-2525020210002"
+
+include: [sensor-device.yaml, i2c-device.yaml]
+
+properties:
+
+  precision:
+    type: string
+    default: "mid"
+    enum:
+      - "low"
+      - "mid"
+      - "high"
+    description: |
+      Sensor measurement precision for temperature and humidity.
+      Supported precision options are low, mid or high.
+      Defaults to mid, which is a good compromise between
+      current usage and precision.
+
+  heater:
+    type: string
+    default: "OFF"
+    enum:
+      - "OFF"
+      - "ON_200MW_1S"
+      - "ON_200MW_100MS"
+      - "ON_110MW_1S"
+      - "ON_110MW_100MS"
+      - "ON_20MW_1S"
+      - "ON_20MW_100MS"
+    description: |
+      Activate the heater when fetching a sample for the specified amount of time.
+      This is only possible when the precison is set to high.
+      Defaults to OFF, since this option is valid for high precision
+      and the default precision is mid.
diff --git a/include/zephyr/drivers/sensor/wsen_hids_2525020210002.h b/include/zephyr/drivers/sensor/wsen_hids_2525020210002.h
diff --git a/tests/drivers/build_all/sensor/i2c.dtsi b/tests/drivers/build_all/sensor/i2c.dtsi
