Update sensor drivers to use DT_HAS_<compat>_ENABLED Kconfig symbol
to expose the driver and enable it by default based on devicetree.
Signed-off-by: Kumar Gala <galak@kernel.org>
According to the formulas found in the reference manuals of the SoC
families using the "st,stm32-temp-cal" version of the temperature sensor
(i.e. G0, G4, H7, L0, L1, L4, L5, U5, WB, WL), the temperature is
computed with the following formula:
T = ((TS_CAL2_TEMP - TS_CAL1_TEMP) / (TS_CAL2 - TS_CAL1))
* (TS_DATA - TS_CAL1) + TS_CAL1_TEMP
What is called ts-cal-offset in the stm32_temp driver is therefore the
same value as TS_CAL1_TEMP1. Use it directly instead of defining another
property.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
The stm32_temp driver defines the ts-voltage-mv property to determine
the reference voltage of the ADC in the temperature computation. However
this information is already available in the device tree at the ADC
level (even with the same default value). Use it through the ADC API
instead of duplicating the information.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Currently the driver only setup the ADC to read from the
internal temperature channel on init. However, it is possible
that some other application that uses the ADC can setup the
ADC to read from some other channel and therefore subsequent
stm32_temp_sample_fetch will fail to read the targeted channel.
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
The ADC should be calibrated on init, there is no requirement
to calibrate ADC again on stm32_temp_init, remove it.
Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com>
sensor_value_from_double had a early overflow when converting the
fractional part (val2). This occured when input was more then
2147.493647 (inp >= INT32_MAX/1000000.0 + 0.01).
return value -ERANGE as this is what errno is set to by `strtod` and
similar posix functions.
fixes issue #39176
Signed-off-by: Simon Frank <simon.frank@lohmega.com>
This PR adds the different handling of temperature sensor for the
STM32L5 soc. In this soc, there are some calibration settings which
need to be applied for temperature conversion.
Signed-off-by: Wouter Cappelle <wouter.cappelle@crodeon.com>
moving the conversion from adc value to the get function
which will be used for different handling of stm32 temp sensors
Signed-off-by: Wouter Cappelle <wouter.cappelle@crodeon.com>
In drivers/sensor/CMakeLists.txt, we have various lines like this:
add_subdirectory_ifdef(CONFIG_FOO foo)
Then drivers/sensor/foo/CMakeLists.txt says:
zephyr_library()
zephyr_library_sources_ifdef(CONFIG_FOO foo.c)
This is redundant; the foo/CMakeLists.txt won't be added to the build
system unless CONFIG_FOO=y in the first place, so there's no need for
extra boilerplate testing it again.
Remove all these unnecessary instances in each sensor driver's
CMakeLists.txt using this pattern:
zephyr_library()
zephyr_library_sources(foo.c)
In a couple of places, the '.c' extension is missing. Add them in for
consistency when that happens.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
STM32 internal temperature sensor driver.
This sensor can be used to measure the temperature of the CPU
and its surroundings.
Signed-off-by: Eug Krashtan <eug.krashtan@gmail.com>
