Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Update devicetree sources and bindings, switch to new GPIO API. Use
devicetree property name to identify interrupt signal.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
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>
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devices with outdated CCS811 application firmware that doesn't properly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>
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>
Update ccs811 dts binding to include GPIO pins for wakeup, reset, and
interrupt and change driver code to get the GPIO pin and controller
info from DT instead of Kconfig.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move gpio.h to drivers/gpio.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Add support for AMS CCS811 Digital Gas Sensor for monitoring
indoor air quality. This sensor reports the following parameters:
1. Co2 concentration
2. VOC concentration
3. Sensor voltage
4. Sensor current
This driver only supports polling mode as of now.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
