iio: hid-sensors: Add proximity and attention IDs

The HID Usage Table at https://usb.org/sites/default/files/hut1_5.pdf
reserves:

- 0x4b2 for Human Proximity Range
Distance between a human and the

iio: hid-sensors: Add proximity and attention IDs

The HID Usage Table at https://usb.org/sites/default/files/hut1_5.pdf
reserves:

- 0x4b2 for Human Proximity Range
Distance between a human and the computer. Default unit of
measure is meters;
https://www.usb.org/sites/default/files/hutrr39b_0.pdf

- 0x4bd for Human Attention Detected
Human-Presence sensors detect the presence of humans in the sensor’s
field-of-view using diverse and evolving technologies. Some presence
sensors are implemented with low resolution video cameras, which can
additionally track a subject’s attention (i.e. if the
user is ‘looking’ at the system with the integrated sensor).
A Human-Presence sensor, providing a Host with the user’s attention
state, allows the Host to optimize its behavior. For example, to
brighten/dim the system display, based on the user’s attention to the
system (potentially prolonging battery life). Default unit is
true/false;
https://www.usb.org/sites/default/files/hutrr107-humanpresenceattention_1.pdf

Signed-off-by: Ricardo Ribalda <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-als: Add light chromaticity support

On some platforms, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagr

iio: hid-sensor-als: Add light chromaticity support

On some platforms, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Add light chromaticity x and y.

Signed-off-by: Basavaraj Natikar <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-als: Add light color temperature support

On some platforms, ambient color sensors also support light color
temperature. Add support of light color temperature.

Signed-off-by: Basava

iio: hid-sensor-als: Add light color temperature support

On some platforms, ambient color sensors also support light color
temperature. Add support of light color temperature.

Signed-off-by: Basavaraj Natikar <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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Revert "iio: hid-sensor-als: Add light color temperature support"

This reverts commit 5f05285df691b1e82108eead7165feae238c95ef.

This commit assumes that every HID descriptor for ALS sensor has
pres

Revert "iio: hid-sensor-als: Add light color temperature support"

This reverts commit 5f05285df691b1e82108eead7165feae238c95ef.

This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE.
When the above usage id is absent, driver probe fails. This breaks
ALS sensor functionality on many platforms.

Till we have a good solution, revert this commit.

Reported-by: Thomas Weißschuh <[email protected]>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada <[email protected]>
Cc: <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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Revert "iio: hid-sensor-als: Add light chromaticity support"

This reverts commit ee3710f39f9d0ae5137a866138d005fe1ad18132.

This commit assumes that every HID descriptor for ALS sensor has
presence

Revert "iio: hid-sensor-als: Add light chromaticity support"

This reverts commit ee3710f39f9d0ae5137a866138d005fe1ad18132.

This commit assumes that every HID descriptor for ALS sensor has
presence of usage id ID HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X and
HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y. When the above usage ids are
absent, driver probe fails. This breaks ALS sensor functionality on
many platforms.

Till we have a good solution, revert this commit.

Reported-by: Thomas Weißschuh <[email protected]>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223
Signed-off-by: Srinivas Pandruvada <[email protected]>
Cc: <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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iio: hid-sensor-als: Add light chromaticity support

In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram.

iio: hid-sensor-als: Add light chromaticity support

In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Thus, add light chromaticity x and y.

Signed-off-by: Basavaraj Natikar <[email protected]>
Acked-by: Srinivas Pandruvada<[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-als: Add light color temperature support

In most cases, ambient color sensors also support light color temperature.
As a result, add support of light color temperature.

Signed-off-b

iio: hid-sensor-als: Add light color temperature support

In most cases, ambient color sensors also support light color temperature.
As a result, add support of light color temperature.

Signed-off-by: Basavaraj Natikar <[email protected]>
Acked-by: Srinivas Pandruvada<[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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HID: hid-sensor-custom: Allow more custom iio sensors

The known LUID table for established/known custom HID sensors was
limited to sensors with "INTEL" as manufacturer. But some vendors such
as Leno

HID: hid-sensor-custom: Allow more custom iio sensors

The known LUID table for established/known custom HID sensors was
limited to sensors with "INTEL" as manufacturer. But some vendors such
as Lenovo also include fairly standard iio sensors (e.g. ambient light)
in their custom sensors.

Expand the known custom sensors table by a tag used for the platform
device name and match sensors based on the LUID as well as optionally
on model and manufacturer properties.

Signed-off-by: Philipp Jungkamp <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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iio: Add relative sensitivity support

Some hid sensors may use relative sensitivity such as als sensor.
This patch adds relative sensitivity checking for all hid sensors.

Signed-off-by: Ye Xiang <x

iio: Add relative sensitivity support

Some hid sensors may use relative sensitivity such as als sensor.
This patch adds relative sensitivity checking for all hid sensors.

Signed-off-by: Ye Xiang <[email protected]>
Acked-by: Jiri Kosina <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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HID: hid-sensor-custom: Add custom sensor iio support

Currently custom sensors properties are not decoded and it is up to
user space to interpret.

Some manufacturers already standardized the meanin

HID: hid-sensor-custom: Add custom sensor iio support

Currently custom sensors properties are not decoded and it is up to
user space to interpret.

Some manufacturers already standardized the meaning of some custom sensors.
They can be presented as a proper IIO sensor. We can identify these sensors
based on manufacturer and serial number property in the report.

This change is identifying hinge sensor when the manufacturer is "INTEL".
This creates a platform device so that a sensor driver can be loaded to
process these sensors.

Signed-off-by: Ye Xiang <[email protected]>
Acked-by: Jiri Kosina <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms and c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335

Based on 1 normalized pattern(s):

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 if not write to the free
software foundation inc 51 franklin st fifth floor boston ma 02110
1301 usa

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 111 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Alexios Zavras <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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iio: hid-sensor-hub: Implement batch mode

HID sensor hubs using Integrated Senor Hub (ISH) has added capability to
support batch mode. This allows host processor to go to sleep for extended
duration

iio: hid-sensor-hub: Implement batch mode

HID sensor hubs using Integrated Senor Hub (ISH) has added capability to
support batch mode. This allows host processor to go to sleep for extended
duration, while the sensor hub is storing samples in its internal buffers.

'Commit f4f4673b7535 ("iio: add support for hardware fifo")' implements
feature in IIO core to implement such feature. This feature is used in
bmc150-accel-core.c to implement batch mode. This implementation allows
software device buffer watermark to be used as a hint to adjust hardware
FIFO.

But HID sensor hubs don't allow to change internal buffer size of FIFOs.
Instead an additional usage id to set "maximum report latency" is defined.
This allows host to go to sleep upto this latency period without getting
any report. Since there is no ABI to set this latency, a new attribute
"hwfifo_timeout" is added so that user mode can specify a latency.

This change checks presence of usage id to get/set maximum report latency
and if present, it will expose hwfifo_timeout.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-rotation: Add geomagnetic orientation sensor hid support.

Geomagnetic orientation(AM) sensor is one kind of orientation 6dof sensor.
It gives the device rotation in respect to the ea

iio: hid-sensor-rotation: Add geomagnetic orientation sensor hid support.

Geomagnetic orientation(AM) sensor is one kind of orientation 6dof sensor.
It gives the device rotation in respect to the earth center and the
magnetic north. The sensor is implemented through use of an accelerometer
and magnetometer do not use gyroscope. It is a standard HID sensor.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Geomagnetic orientation(AM) sensor and dev rotation sensor have same
channel and share channel usage id. So the most of the code for relative
orientation sensor can be reused.

Signed-off-by: Song Hongyan <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-rotation: Add relative orientation sensor hid support

Relative orientation(AG) sensor is a 6dof orientation sensor,
it depends on acceleration and gyroscope sensor data. It gives
a q

iio: hid-sensor-rotation: Add relative orientation sensor hid support

Relative orientation(AG) sensor is a 6dof orientation sensor,
it depends on acceleration and gyroscope sensor data. It gives
a quaternion describing the orientation of the device relative
to an initial orientation. It is a standard HID sensor.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Relative orientation(AG) sensor and dev rotation sensor have same
channels and share channel usage id. So the most of the code for
relative orientation sensor can be reused.

Signed-off-by: Song Hongyan <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Xu Even <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid: Add humidity sensor support

Environmental humidity sensor is a hid defined sensor,
it shows raw humidity measurement of air.

More information can be found in:
http://www.usb.org/developer

iio: hid: Add humidity sensor support

Environmental humidity sensor is a hid defined sensor,
it shows raw humidity measurement of air.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR39b.pdf

According to IIO ABI definition, humidityrelative data output unit is
milli percent. Add the unit convert from percent to milli percent.

Signed-off-by: Song Hongyan <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid: Add temperature sensor support

Environmental temperature sensor is a hid defined sensor,
it measures temperature.

More information can be found in:
http://www.usb.org/developers/hidpage/H

iio: hid: Add temperature sensor support

Environmental temperature sensor is a hid defined sensor,
it measures temperature.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR39b.pdf

According to IIO ABI definition, IIO_TEMP data output unit is
milli degrees Celsius. Add the unit convert from degree to milli degree.

Signed-off-by: Song Hongyan <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: Add gravity sensor support

Gravity sensor is a soft sensor, which derives value from
standard accelerometer device by filtering out the acceleration
which is not caused by gravity.

Gravity sen

iio: Add gravity sensor support

Gravity sensor is a soft sensor, which derives value from
standard accelerometer device by filtering out the acceleration
which is not caused by gravity.

Gravity sensor provides a three dimensional vector indicating
the direction and magnitude of gravity. Typically, this sensor
is used to determine the device's relative orientation in space.
The units and the coordinate system is the same as the one used by
the acceleration sensor.
When a device is at rest, the output of the gravity sensor should
be identical to that of the accelerometer.

More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR59_-_Usages_for_Wearables.pdf

Gravity sensor and accelerometer have similar channels and
share channel usage ids. So the most of the code for accel_3d
can be reused.

Signed-off-by: Song Hongyan <[email protected]>
Acked-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: accel: hid-sensor-accel-3d: Add timestamp

Added timestamp channel. With this change, each sample has a timestamp.
This timestamp can be from the sensor hub when present or local kernel
timestam

iio: accel: hid-sensor-accel-3d: Add timestamp

Added timestamp channel. With this change, each sample has a timestamp.
This timestamp can be from the sensor hub when present or local kernel
timestamp. HID sensors can send timestamp with input data using usage id
HID_USAGE_SENSOR_TIME_TIMESTAMP. This timestamp value is converted to
nano seconds before pushing this sample to the iio core.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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HID: hid-sensor-hub: Add support for application collection

Section 4.2.5 of HID Sensor hub specification allows two methods
defining sensor devices.
- Each sensor device by its own collection
- A t

HID: hid-sensor-hub: Add support for application collection

Section 4.2.5 of HID Sensor hub specification allows two methods
defining sensor devices.
- Each sensor device by its own collection
- A top level application collection object, including multiple
sensors.
In the first method, each sensor can be in its own sensor application
collection without a physical collection.
In the second method there is a usage id for collection type, which
is defined as an application collection, with multiple physical
collections in it. It is possible to define fusion sensor with this
and may have its own handler. If there is a callback registered
for the collection type, then forward all reports for sensors in
its collection to this handler.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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iio: hid-sensors: Added device rotation support

Added usage id processing for device rotation. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framewo

iio: hid-sensors: Added device rotation support

Added usage id processing for device rotation. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framework for registering callback
events from the sensor hub.
Data is exported to user space in the form of quaternion rotation
format.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensors: Added Pressure Sensor driver

Added usage id processing for Pressure Sensor. This uses IIO
interfaces for triggered buffer to present data to user
mode. This uses HID sensor framewo

iio: hid-sensors: Added Pressure Sensor driver

Added usage id processing for Pressure Sensor. This uses IIO
interfaces for triggered buffer to present data to user
mode. This uses HID sensor framework for registering callback
events from the sensor hub.

Signed-off-by: Archana Patni <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensors: Added Proximity Sensor Driver

Added usage id processing for Proximity (Human Presence).
This uses IIO interfaces for triggered buffer to present data
to user mode. This uses HID se

iio: hid-sensors: Added Proximity Sensor Driver

Added usage id processing for Proximity (Human Presence).
This uses IIO interfaces for triggered buffer to present data
to user mode. This uses HID sensor framework for registering
callback events from the sensor hub.

Signed-off-by: Archana Patni <[email protected]>
Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensor-hub: Remove hard coded indexes

Remove the hard coded indexes, instead search for usage id and
use the index to set the power and report state.
This will fix issue, where the report d

iio: hid-sensor-hub: Remove hard coded indexes

Remove the hard coded indexes, instead search for usage id and
use the index to set the power and report state.
This will fix issue, where the report descriptor doesn't contain
the full list of possible selector for power and report state.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Acked-by: Jonathan Cameron <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

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iio: hid-sensors: Added Inclinometer 3D

Added usage id processing for Inclinometer 3D. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framework for r

iio: hid-sensors: Added Inclinometer 3D

Added usage id processing for Inclinometer 3D. This uses IIO
interfaces for triggered buffer to present data to user
mode.This uses HID sensor framework for registering callback
events from the sensor hub.

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: hid-sensors: Fix power and report state

In the original HID sensor hub firmwares all Named array enums were
to 0-based. But the most recent hub implemented as 1-based,
because of the implementa

iio: hid-sensors: Fix power and report state

In the original HID sensor hub firmwares all Named array enums were
to 0-based. But the most recent hub implemented as 1-based,
because of the implementation by one of the major OS vendor.
Using logical minimum for the field as the base of enum. So we add
logical minimum to the selector values before setting those fields.
Some sensor hub FWs already changed logical minimum from 0 to 1
to reflect this and hope every other vendor will follow.
There is no easy way to add a common HID quirk for NAry elements,
even if the standard specifies these field as NAry, the collection
used to describe selectors is still just "logical".

Signed-off-by: Srinivas Pandruvada <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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