Normally a syscall would check the current privilege level and then
decide to go to _impl_<syscall> directly or go through a
_handler_<syscall>.
__ZEPHYR_SUPERVISOR__ is a compiler optimization flag which will
make all the system calls from the driver files directly link
to the _impl_<syscall>. Thereby reducing the overhead of checking the
privileges.
In the previous implementation all the source files would be compiled
by zephyr_source() rule. This means that zephyr_* is a catchall CMake
library for source files that can be built purely with the include
paths, defines, and other compiler flags that all zephyr source
files uses. This states that adding one extra compiler flag for only
one complete directory would fail.
This limitation can be overcome by using zephyr_libray* APIs. This
creates a library for the required directories and it also supports
directory level properties.
Hence we use zephyr_library* to create a new library with
macro _ZEPHYR_SUPERVISOR_ for the optimization.
Signed-off-by: Adithya Baglody <adithya.nagaraj.baglody@intel.com>
The hts221 requires 2.2 ms at boot time to download
the flash content into the volatile mem and the
calibration values cannot be read before that.
This issue is causing following crash:
***** USAGE FAULT *****
Executing thread ID (thread): 0x20000234
Faulting instruction address: 0x80037de
Division by zero
Fatal fault in essential thread! Spinning...
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Some device include a temperature sensor, usually used as a
companion for helping in drift compensation, that measure the
die temperature. This temperature IS NOT related to the the
ambient temperature, hence a clean separation between the two
is required.
This commit introduces a clean separation between the two
types of temperature leaving the old deprecated definition
still there.
The list of current drivers that read the die (and not the ambient)
temperature is the following:
- adxl362
- bma280
- bmg160
- bmi160
- fxos8700
- lis3mdl
- lsm6ds0
- lsm6dsl
- lsm9ds0
- mpu6050
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Based on the discussion in #5693, the reason why humidity was defined
in milli-percent was likely following Linux which defines it as such
in its sensor subsystem:
http://elixir.free-electrons.com/linux/latest/source/Documentation/ABI/testing/sysfs-bus-iio#L263
However, Linux defines temperature in milli-degrees either, but
Zephyr uses degrees (similarly for most other quantities). Typical
sensor resolution/precision for humidity is also on the order of 1%.
One of the existing drivers, th02.c, already returned values in
percents, and few apps showed it without conversion and/or units,
leading to confusing output to user like "54500".
So, switching units to percents, and update all the drivers and
sample apps.
For few drivers, there was also optimized conversion arithmetics
to avoid u64_t operations. (There're probably more places to
optimize it, and temperature conversion could use such optimization
too, but that's left for another patch.)
Fixes: #5693
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Move to use an if HAS_DTS_I2C_DEVICE instead of depends on so that the
Kconfig sybmols don't even show up if HAS_DTS_I2C_DEVICE is true.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This reverts commit 2a7efb7419.
"choice" section in board Kconfig.defconfig introduces a dependency
from the sensor to the board. As a consequence a warning was generated
whenever the sensor was used on another board.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Introducing CMake is an important step in a larger effort to make
Zephyr easy to use for application developers working on different
platforms with different development environment needs.
Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.
This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.
For users that just want to continue their work with minimal
disruption the following should suffice:
Install CMake 3.8.2+
Port any out-of-tree Makefiles to CMake.
Learn the absolute minimum about the new command line interface:
$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..
$ cd build
$ make
PR: zephyrproject-rtos#4692
docs: http://docs.zephyrproject.org/getting_started/getting_started.html
Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
In order to be able to default Kconfig "Trigger mode" choice
in a board Kconfig.defconfig, this commit provides it with a name.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
- place all sensor Kconfig options in submenu
- separate device drivers and common options with a comment line
- align help text
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.
Jira: ZEP-2051
Change-Id: I08f51e2bfd475f6245771c1bd2df7ffc744c48c4
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This is a start to move away from the C99 {u}int{8,16,32,64}_t types to
Zephyr defined u{8,16,32,64}_t and s{8,16,32,64}_t. This allows Zephyr
to define the sized types in a consistent manor across all the
architectures we support and not conflict with what various compilers
and libc might do with regards to the C99 types.
We introduce <zephyr/types.h> as part of this and have it include
<stdint.h> for now until we transition all the code away from the C99
types.
We go with u{8,16,32,64}_t and s{8,16,32,64}_t as there are some
existing variables defined u8 & u16 as well as to be consistent with
Zephyr naming conventions.
Jira: ZEP-2051
Change-Id: I451fed0623b029d65866622e478225dfab2c0ca8
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.
Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.
Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file. Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.
Jira: ZEP-1457
Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Remove the type field from the sensor value structure. All values will
have the type previously defined by SENSOR_VALUE_TYPE_INT_PLUS_MICRO.
This simplifies the interface, as apps will know what value type to
expect. Apps that prefer to use double values can optain them using the
sensor_value_to_double function.
Change-Id: I3588d74258030eb16c3f89d8eead13cca4606b18
Signed-off-by: Bogdan Davidoaia <bogdan.davidoaia@linaro.org>
Move logging out of misc/ to its own subsystem. Anything related to
logging and any new logging features or backends could be added here
instead of the generic location in misc/ which is overcrowded with
options that are not related to eachother.
Jira: ZEP-1467
Change-Id: If6a3ea625c3a3562a7a61a0ba5fd7e6ca75518ba
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
convert all sensor drivers to use threads and the unified kernel API and
remove all legacy APIs.
Change-Id: Ica43ea74ecbbf85273f718f182c413a9dcd8abc6
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
move both semaphores and nano_work objects to unified kernel APIs.
Change-Id: Icca8a091063544c451e47201cd8e956b95010513
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
PRIMARY, SECONDARY, NANOKERNEL, MICROKERNEL init levels are now
deprecated.
New init levels introduced: PRE_KERNEL_1, PRE_KERNEL_2, POST_KERNEL
to replace them.
Most existing code has instances of PRIMARY replaced with PRE_KERNEL_1,
SECONDARY with POST_KERNEL as SECONDARY has had a longstanding bug
where the documentation specified SECONDARY ran before the kernel started
up, but actually ran afterwards.
Change-Id: I771bc634e9caf7f17dbf214a270bc9967eed7d32
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Making a reference to the common work queue code should not necessarily
drag in the system workqueue, since it is possible to use a workqueue
that is not the system workqueue. This is done by moving the system
workqueue into its own code module.
Moving the system workqueue to its own code module allows removing the
NANO_WORKQUEUE and SYSTEM_WORKQUEUE kconfig options, and compiling the
common workqueue code and system workqueue all the time. They are only
linked in the final image if a reference to them exist, same as the
other kernel modules.
Change-Id: I6f48d2542bda24f4702e7c2e317818dd082b3c11
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Adithya Baglody