This commit updates the HMC5883L driver to use the new GPIO API.
Also add a note explicitly describing the active state of the DRDY
pin in the binding file.
Tested on frdm_k64f.
Signed-off-by: Kevin Townsend <kevin@ktownsend.com>
Update sample overlay for missing chip select and to deconflict with
UART TXD. Add GPIO flags to configuration state. Replace callback
enable with interrupt enable.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Add a sample overlay. Add GPIO flags to configuration state. Replace
callback enable with interrupt enable.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Put all the devicetree configuration data into a config structure in
flash, which removes some ultra-long identifiers from the code and
makes it more readable, and prepares for multiple instance support.
Consistently use the interrupt signal datasheet name for all objects
that are specific to that signal, including configuration structure
tags and function names.
Update the trigger idiom for setup/handle/process stages.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Converts the fxas21002 sensor driver to the new gpio api. Updates device
trees for all boards with this sensor to active low gpio interrupts by
default.
Tested on the hexiwear_k64 board.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Converts the fxos8700 sensor driver to the new gpio api. Updates device
trees for all boards with this sensor to active low gpio interrupts by
default.
Tested on frdm_k64f and rv32m1_vega_ri5cy boards. The latter verifies
that the reset output works correctly.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Update ALERT active level in all devicetree files. Capture GPIO flags
in static configuration. Add internal API to enable and disable
interrupt, to release the handlers when an alert occurs, and to
re-enable the signal when the handler completes. Check for alerts
received during periods when the interrupt was disabled.
Extend the example to handle both above and below range triggers and
alerts that are present on startup.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Correct DRDY active level to default active-high, switch to new
interrupt configuration.
Also fix a common bug where an already-active DRDY signal is not
properly handled.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The build infrastructure should not be adding the drivers subdirectory
to the include path. Fix the legacy uses that depended on that
addition.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Define a binding for the Bosch BMA280 sensor. Remove the Kconfig
settings and update the driver to use the devicetree information.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Add sensor driver for the internal temperature sensor present in the
NXP Kinetis SoC series.
The driver allows reading the die temperature and the voltage of the
external voltage reference used for calculating the temperature.
Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
The firmware version on the CCS811 on nrf52_pca20020 is generally
version 1.1, which does not set the data ready bit in the status
register. Assume that a non-zero CO2 measurement on that version is
fresh for the purposes of determining the fetch status.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The application may want to know the configured mode without inspecting
Kconfig macros; this is important for proper management of BASELINE
which is mode-dependent.
It also may need to know the version of the hardware and firmware, as
the behavior of application firmware 2.0 is significantly better than
version 1.1.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
This mode is documented as producing a raw result every 250 ms that the
application must convert to eCO2 and eTVOC readings. In practice
application firmware 2.0 appears to convert the readings as with all
other rates.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Expose the entire content of the ALG_RESULT_DATA block to the
application, primarily so the status and error flags can be seen. With
those available the application has the ability to detect that a stale
result has been provided so sensor_fetch_sample() can return -EAGAIN in
this case instead of -EIO, and it doesn't need to block which is
annoying.
This should also make the sensor usable on older Nordic Thingy:52
devices with outdated CCS811 application firmware that doesn't properly
implement the DATA_READY bit.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Accurate estimate of gas presence requires temperature and humidity
data. Add API to update these values.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Use CMSIS-standard bit mask and offset macros. Rename the field to more
closely match the data sheet. Use slightly less magic numbers for the
scale multipliers.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Proper use of the CCS811 requires maintenance of the BASELINE
register value measured in clean air at various points in the sensor
life cycle. The sensor driver abstraction has no facility to support
this, so add an application header with functions to fetch and update
the register value.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Add the standard suite of trigger configuration options. Add driver
support for the DATA_READY and THRESHOLD triggers. Note cross-module
dependency as configuring the trigger requires a controlled modification
of the sensor registers and the sensor driver API doesn't support this.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The original implementation relied on the DATA_READY bit of the STATUS
register to indicate when a reading was available. This bit remains
clear for the first several readings produced by the CCS811.
When INT_DATARDY is set in MEAS_MODE the nINT signal will remain
asserted until ALG_RESULT_DATA is read. If this is treated as a LEVEL
signal, which is the common case in Zephyr, gating the read of
ALG_RESULT_DATA on DATA_READY means the signal will never be cleared,
and the interrupt callback will be repeated immediately.
Since the STATUS register value is part of the ALG_RESULT_DATA block
just read the whole thing, and provide its content to the user only if
the DATA_READY bit is set.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The CCS811 has a measurement lifecycle that includes certain timing
constraints, including that calibration constants should not be applied
until the conditioning period has completed. If a device resets but the
CCS811 remains the process of inspecting current state and initializing
the device properly can be complicated.
Simplify this by forcing a reset of the device when the driver is
initialized. Should this cause hardship the necessary logic and
infrastructure to record time-of-last-reset across reboots and verify
measurement mode/baseline consistency can be added at that point.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Read the status and error in one function that provides its own
diagnostics.
Also change name of register to match datasheet.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The CCS811 can be in either boot mode (after powerup) or application
mode, and these modes have distinct register maps that share only some
content. The register written to switch from boot mode to application
mode is not available in application mode, so don't write to it in that
case.
Also respect the required timeout between APP_START and next I2C
operation.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Allow application to choose the measurement rate.
Measurement mode 4 (250 ms rate) is not supported because it we have no
support for processing the raw data it produces.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Asserting the WAKEn increases current draw. Turn it off when I2C is
not being used.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Adds BME280 SPI chip select pin control if chip select is
configured for the device in the device tree.
Signed-off-by: Jan Tore Guggedal <jantore.guggedal@nordicsemi.no>
Correct handling of device encoded temperature values, which combine a
12-bit 2s complement signed value with a separate sign bit. Rework
conversion between device and sensor temperature representations to
support negative temperatures in both domains.
Use a much simpler trigger configuration where the alert is driven by
comparator output, rather than as an interrupt that requires a pair of
I2C transactions to read and clear the flag.
Refactor the trigger infrastructure to use the setup/handle/process
idiom, which reduces duplicated code and to correctly detect alerts
present when the triggers are set.
Completely replace the sample with something that demonstrates
updating upper and lower threshold values to track moving
temperatures.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Added autocompletion to 'sensor get' command. After this change
device and channels are autocompleted. It is possible to provide
multiple channels for reading.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
When asserts were disabled then sensor accepted any channel in
hts221_channel_get(). Changed to return -ENOTSUP when invalid
channel is provided.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
