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Iosif MacesanuMaureenHelm
Iosif Macesanu
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MaureenHelm
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drivers: sensor: Add SI7060 temperature sensor driver
Add SI7060 temperature sensor driver Signed-off-by: Iosif Macesanu <[email protected]>
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‎drivers/sensor/CMakeLists.txt‎

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@@ -50,6 +50,7 @@ add_subdirectory_ifdef(CONFIG_QDEC_NRFX qdec_nrfx)
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add_subdirectory_ifdef(CONFIG_TEMP_NRF5 nrf5)
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add_subdirectory_ifdef(CONFIG_SHT3XD sht3xd)
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add_subdirectory_ifdef(CONFIG_SI7006 si7006)
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add_subdirectory_ifdef(CONFIG_SI7060 si7060)
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add_subdirectory_ifdef(CONFIG_STTS751 stts751)
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add_subdirectory_ifdef(CONFIG_SX9500 sx9500)
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add_subdirectory_ifdef(CONFIG_TH02 th02)

‎drivers/sensor/Kconfig‎

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@@ -125,6 +125,8 @@ source "drivers/sensor/sht3xd/Kconfig"
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source "drivers/sensor/si7006/Kconfig"
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source "drivers/sensor/si7060/Kconfig"
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source "drivers/sensor/stts751/Kconfig"
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source "drivers/sensor/sx9500/Kconfig"

‎drivers/sensor/si7060/CMakeLists.txt‎

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# SPDX-License-Identifier: Apache-2.0
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zephyr_library()
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zephyr_library_sources_ifdef(CONFIG_SI7060 si7060.c)

‎drivers/sensor/si7060/Kconfig‎

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# Kconfig - SI7060 temperature sensor configuration options #
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#
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# Copyright (c) 2019 Actinius
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig SI7060
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bool "SI7060 Temperature Sensor"
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depends on (I2C && HAS_DTS_I2C)
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help
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Enable driver for SI7060 temperature sensors.

‎drivers/sensor/si7060/si7060.c‎

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/*
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* Copyright (c) 2019 Actinius
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <device.h>
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#include <drivers/i2c.h>
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#include <drivers/sensor.h>
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#include <logging/log.h>
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#include "si7060.h"
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#define SIGN_BIT_MASK 0x7F
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LOG_MODULE_REGISTER(si7060, CONFIG_SENSOR_LOG_LEVEL);
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struct si7060_data {
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struct device *i2c_dev;
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u16_t temperature;
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};
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static int si7060_reg_read(struct si7060_data *drv_data, u8_t reg,
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u8_t *val)
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{
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if (i2c_reg_read_byte(drv_data->i2c_dev,
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DT_INST_0_SILABS_SI7060_BASE_ADDRESS, reg, val)) {
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return -EIO;
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}
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return 0;
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}
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static int si7060_reg_write(struct si7060_data *drv_data, u8_t reg,
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u8_t val)
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{
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return i2c_reg_write_byte(drv_data->i2c_dev,
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DT_INST_0_SILABS_SI7060_BASE_ADDRESS, reg, val);
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}
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static int si7060_sample_fetch(struct device *dev, enum sensor_channel chan)
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{
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struct si7060_data *drv_data = dev->driver_data;
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if (si7060_reg_write(drv_data, SI7060_REG_CONFIG,
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SI7060_ONE_BURST_VALUE) != 0) {
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return -EIO;
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}
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int retval;
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u8_t dspsigm;
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u8_t dspsigl;
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retval = si7060_reg_read(drv_data, SI7060_REG_TEMP_HIGH,
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&dspsigm);
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retval += si7060_reg_read(drv_data, SI7060_REG_TEMP_LOW,
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&dspsigl);
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if (retval == 0) {
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drv_data->temperature = (256 * (dspsigm & SIGN_BIT_MASK))
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+ dspsigl;
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} else {
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LOG_ERR("Read register err");
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}
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LOG_DBG("Sample_fetch retval: %d", retval);
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return retval;
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}
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static int si7060_channel_get(struct device *dev, enum sensor_channel chan,
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struct sensor_value *val)
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{
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struct si7060_data *drv_data = dev->driver_data;
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s32_t uval;
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if (chan == SENSOR_CHAN_AMBIENT_TEMP) {
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uval = ((55 * 160) + (drv_data->temperature - 16384)) >> 4;
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val->val1 = uval / 10;
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val->val2 = (uval % 10) * 100000;
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LOG_DBG("Temperature = val1:%d, val2:%d", val->val1, val->val2);
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return 0;
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} else {
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return -ENOTSUP;
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}
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}
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static const struct sensor_driver_api si7060_api = {
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.sample_fetch = &si7060_sample_fetch,
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.channel_get = &si7060_channel_get,
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};
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static int si7060_chip_init(struct device *dev)
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{
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struct si7060_data *drv_data = dev->driver_data;
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u8_t value;
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drv_data->i2c_dev = device_get_binding(
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DT_INST_0_SILABS_SI7060_BUS_NAME);
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if (!drv_data->i2c_dev) {
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LOG_ERR("Failed to get pointer to %s device!",
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DT_INST_0_SILABS_SI7060_BUS_NAME);
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return -EINVAL;
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}
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if (si7060_reg_read(drv_data, SI7060_REG_CHIP_INFO,
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&value) != 0) {
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return -EIO;
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}
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if ((value >> 4) != SI7060_CHIP_ID_VALUE) {
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LOG_ERR("Bad chip id 0x%x", value);
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return -ENOTSUP;
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}
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return 0;
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}
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static int si7060_init(struct device *dev)
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{
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if (si7060_chip_init(dev) < 0) {
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return -EINVAL;
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}
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return 0;
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}
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static struct si7060_data si_data;
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DEVICE_AND_API_INIT(si7060, DT_INST_0_SILABS_SI7060_LABEL, si7060_init,
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&si_data, NULL, POST_KERNEL, CONFIG_SENSOR_INIT_PRIORITY, &si7060_api);

‎drivers/sensor/si7060/si7060.h‎

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/*
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* Copyright (c) 2019 Actinius
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef _SI7060_H
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#define _SI7060_H
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/* Si7060 register addresses */
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#define SI7060_REG_CHIP_INFO 0xC0
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#define SI7060_REG_TEMP_HIGH 0xC1
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#define SI7060_REG_TEMP_LOW 0xC2
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#define SI7060_REG_CONFIG 0xC4
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#define SI7060_CHIP_ID_VALUE 0x01
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#define SI7060_ONE_BURST_VALUE 0x04
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#endif /* _SI7060_H */

‎dts/bindings/sensor/silabs,si7060.yaml‎

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# Copyright (c) 2019, Actinius
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# SPDX-License-Identifier: Apache-2.0
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title: Si7060 Temperature sensor
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description: >
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This is a representation of Si7060 Temperature sensor
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compatible: "silabs,si7060"
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include: i2c-device.yaml

‎tests/drivers/build_all/dts_fixup.h‎

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@@ -180,6 +180,12 @@
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#define DT_INST_0_SILABS_SI7006_BUS_NAME ""
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#endif
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#ifndef DT_INST_0_SILABS_SI7060_LABEL
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#define DT_INST_0_SILABS_SI7060_LABEL ""
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#define DT_INST_0_SILABS_SI7060_BASE_ADDRESS 0x00
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#define DT_INST_0_SILABS_SI7060_BUS_NAME ""
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#endif
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#ifndef DT_INST_0_ST_LIS2DS12_LABEL
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#define DT_INST_0_ST_LIS2DS12_LABEL ""
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#define DT_INST_0_ST_LIS2DS12_BUS_NAME ""

‎tests/drivers/build_all/sensors_i_z.conf‎

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@@ -26,6 +26,7 @@ CONFIG_MCP9808=y
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CONFIG_MPU6050=y
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CONFIG_SHT3XD=y
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CONFIG_SI7006=y
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CONFIG_SI7060=y
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CONFIG_SX9500=y
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CONFIG_TEMP_NRF5=y
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CONFIG_TH02=y

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