diff options
Diffstat (limited to 'drivers/iio/humidity/hid-sensor-humidity.c')
| -rw-r--r-- | drivers/iio/humidity/hid-sensor-humidity.c | 66 |
1 files changed, 24 insertions, 42 deletions
diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c index 6e09c1acfe51..be2338d5f407 100644 --- a/drivers/iio/humidity/hid-sensor-humidity.c +++ b/drivers/iio/humidity/hid-sensor-humidity.c @@ -1,26 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HID Sensors Driver * Copyright (c) 2017, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. */ #include <linux/device.h> #include <linux/hid-sensor-hub.h> #include <linux/iio/buffer.h> #include <linux/iio/iio.h> -#include <linux/iio/triggered_buffer.h> -#include <linux/iio/trigger_consumer.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include "hid-sensor-trigger.h" @@ -28,13 +16,20 @@ struct hid_humidity_state { struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info humidity_attr; - s32 humidity_data; + struct { + s32 humidity_data; + aligned_s64 timestamp; + } scan; int scale_pre_decml; int scale_post_decml; int scale_precision; int value_offset; }; +static const u32 humidity_sensitivity_addresses[] = { + HID_USAGE_SENSOR_ATMOSPHERIC_HUMIDITY, +}; + /* Channel definitions */ static const struct iio_chan_spec humidity_channels[] = { { @@ -75,7 +70,8 @@ static int humidity_read_raw(struct iio_dev *indio_dev, HID_USAGE_SENSOR_HUMIDITY, HID_USAGE_SENSOR_ATMOSPHERIC_HUMIDITY, humid_st->humidity_attr.report_id, - SENSOR_HUB_SYNC); + SENSOR_HUB_SYNC, + humid_st->humidity_attr.logical_minimum < 0); hid_sensor_power_state(&humid_st->common_attributes, false); return IIO_VAL_INT; @@ -125,7 +121,6 @@ static int humidity_write_raw(struct iio_dev *indio_dev, } static const struct iio_info humidity_info = { - .driver_module = THIS_MODULE, .read_raw = &humidity_read_raw, .write_raw = &humidity_write_raw, }; @@ -138,9 +133,8 @@ static int humidity_proc_event(struct hid_sensor_hub_device *hsdev, struct hid_humidity_state *humid_st = iio_priv(indio_dev); if (atomic_read(&humid_st->common_attributes.data_ready)) - iio_push_to_buffers_with_timestamp(indio_dev, - &humid_st->humidity_data, - iio_get_time_ns(indio_dev)); + iio_push_to_buffers_with_timestamp(indio_dev, &humid_st->scan, + iio_get_time_ns(indio_dev)); return 0; } @@ -155,7 +149,7 @@ static int humidity_capture_sample(struct hid_sensor_hub_device *hsdev, switch (usage_id) { case HID_USAGE_SENSOR_ATMOSPHERIC_HUMIDITY: - humid_st->humidity_data = *(s32 *)raw_data; + humid_st->scan.humidity_data = *(s32 *)raw_data; return 0; default: @@ -187,14 +181,6 @@ static int humidity_parse_report(struct platform_device *pdev, &st->scale_pre_decml, &st->scale_post_decml); - /* Set Sensitivity field ids, when there is no individual modifier */ - if (st->common_attributes.sensitivity.index < 0) - sensor_hub_input_get_attribute_info(hsdev, - HID_FEATURE_REPORT, usage_id, - HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS | - HID_USAGE_SENSOR_ATMOSPHERIC_HUMIDITY, - &st->common_attributes.sensitivity); - return ret; } @@ -223,7 +209,9 @@ static int hid_humidity_probe(struct platform_device *pdev) ret = hid_sensor_parse_common_attributes(hsdev, HID_USAGE_SENSOR_HUMIDITY, - &humid_st->common_attributes); + &humid_st->common_attributes, + humidity_sensitivity_addresses, + ARRAY_SIZE(humidity_sensitivity_addresses)); if (ret) return ret; @@ -239,17 +227,12 @@ static int hid_humidity_probe(struct platform_device *pdev) indio_dev->channels = humid_chans; indio_dev->num_channels = ARRAY_SIZE(humidity_channels); - indio_dev->dev.parent = &pdev->dev; indio_dev->info = &humidity_info; indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; - ret = devm_iio_triggered_buffer_setup(&pdev->dev, indio_dev, - &iio_pollfunc_store_time, NULL, NULL); - if (ret) - return ret; - atomic_set(&humid_st->common_attributes.data_ready, 0); + ret = hid_sensor_setup_trigger(indio_dev, name, &humid_st->common_attributes); if (ret) @@ -272,12 +255,12 @@ static int hid_humidity_probe(struct platform_device *pdev) error_remove_callback: sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_HUMIDITY); error_remove_trigger: - hid_sensor_remove_trigger(&humid_st->common_attributes); + hid_sensor_remove_trigger(indio_dev, &humid_st->common_attributes); return ret; } /* Function to deinitialize the processing for usage id */ -static int hid_humidity_remove(struct platform_device *pdev) +static void hid_humidity_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev); struct iio_dev *indio_dev = platform_get_drvdata(pdev); @@ -285,9 +268,7 @@ static int hid_humidity_remove(struct platform_device *pdev) iio_device_unregister(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_HUMIDITY); - hid_sensor_remove_trigger(&humid_st->common_attributes); - - return 0; + hid_sensor_remove_trigger(indio_dev, &humid_st->common_attributes); } static const struct platform_device_id hid_humidity_ids[] = { @@ -295,7 +276,7 @@ static const struct platform_device_id hid_humidity_ids[] = { /* Format: HID-SENSOR-usage_id_in_hex_lowercase */ .name = "HID-SENSOR-200032", }, - { /* sentinel */ } + { } }; MODULE_DEVICE_TABLE(platform, hid_humidity_ids); @@ -313,3 +294,4 @@ module_platform_driver(hid_humidity_platform_driver); MODULE_DESCRIPTION("HID Environmental humidity sensor"); MODULE_AUTHOR("Song Hongyan <hongyan.song@intel.com>"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS("IIO_HID"); |