This replaces the existing scheduler (but not priority handling)
implementation with a somewhat simpler one. Behavior as to thread
selection does not change. New features:
+ Unifies SMP and uniprocessing selection code (with the sole
exception of the "cache" trick not being possible in SMP).
+ The old static multi-queue implementation is gone and has been
replaced with a build-time choice of either a "dumb" list
implementation (faster and significantly smaller for apps with only
a few threads) or a balanced tree queue which scales well to
arbitrary numbers of threads and priority levels. This is
controlled via the CONFIG_SCHED_DUMB kconfig variable.
+ The balanced tree implementation is usable symmetrically for the
wait_q abstraction, fixing a scalability glitch Zephyr had when many
threads were waiting on a single object. This can be selected via
CONFIG_WAITQ_FAST.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The SMP testing missed the case where _Swap() decides to return back
into the _current. Obviously there is no valid switch handle for the
running thread into which we can restore, and everything blows up.
(What happened is that the new scheduler code opened up a spot where
k_thread_priority_set() does a _reschedule() unconditionally and
doens't check to see whether or not it's needed like the old code).
But that isn't incorrect! It's entirely possible that _Swap() may
find that no thread is runnable except _current (due, for example, to
another CPU racing the other thread you expected off to sleep or
something). Don't blow up, check and return a noop.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
The scheduler priq implementation was taking advantage of a subtle
behavior of the way the tree presents the order of its arguments (the
node being inserted is always first). But it turns out the tree got
that wrong in one spot.
As this was subtle voodoo to begin with, it should have been
documented first. Similarly add a little code to the test case to
guarantee this in the future.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This constant should be defined in limits.h. Define it in limits.h in
the minimal libc, and use the definition found in newlib's includes.
Values in newlib includes range from 1024 to 4096.
The rationale is that all code should use the same value; having
buffers specified with different sizes will lead to interoperability
and out of bounds array writes.
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
NET_ASSERT is useless here, as we already know that an error happened.
Use NET_ERR in order to print a more informative message.
Signed-off-by: Florian Vaussard <florian.vaussard@gmail.com>
When calling net_frag_read(), frag == NULL is an error only if pos is
not zero. It is thus incorrect to throw an error only if !frag, as
pos must also be checked to be not zero.
Signed-off-by: Florian Vaussard <florian.vaussard@gmail.com>
Use the named choices feature introduced by PR #6966
and configure LSM6DSL on ArgonKey board.
The two named choices introduced in LSM6DSL are:
- LSM6DSL_BUS_TYPE (default LSM6DSL_I2C)
- LSM6DSL_TRIGGER_MODE (default LSM6DSL_TRIGGER_NONE)
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Test ArgonKey board. It provides an example of how to test
all the sensors on-board. It currently enables by default
following sensors:
LPS22HB pressure/temp
HTS221 humidity
LSM6DSL accel/gyro plus LIS2MDL magn connected to it.
VL53L0x proximity
Signed-off-by: Armando Visconti <armando.visconti@st.com>
This patch adds dts support to lps22hb/hts221/vl53l0x
I2C sensors as well as lsm6dsl SPI sensor.
Since some info, like gpio for irq triggering or SPI bus
characteristics, may be provided through dts, they need
to be made optional in the LSM6DSL driver by usage of
macros like HAS_DTS_SPI_PINS or HAS_DTS_SPI_DEVICE.
Signed-off-by: Armando Visconti <armando.visconti@st.com>
The LSM6DSL accel/gyro sensor can be accessed through
SPI bus. So the required configuration can be passed through
dts file.
Signed-off-by: Armando Visconti <armando.visconti@st.com>
Minimal driver for ILI9340 LCD display driver including support
for adafruit 2.2" LCD display (1480)
Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
Looks lik ARC arch snps_esmk can provide a 3rd port of this controller,
so let's add the necessary bits and pieces to get it instanciated if one
enable this port in DTS.
PCI settings are not introduced for that port as there is no known
arch/board exposing a 3rd port on PCI bus.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Fix the qmsi i2c driver and the relevant SoCs accordingly.
Also applying relevant changes on quark_se_c1000_ss as it can use i2c
qmsi driver as well along with qmsi ss i2c driver.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Now that all arch using QMSI gpio driver are generating the right
settings through DTS, these options can be removed from Kconfig.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Fix the ns16550 uart driver and relevant SoCs accordingly.
All generic settings are now DTS based.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Fix the qmsi uart driver and relevant SoCs accordingly.
Also: using config for irq everwhere relevantly and not an hardcoded
value in the driver.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Get the name generated through dts as well.
Fix the rtc driver and relevant SoCs accordingly.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Get the name and irq flags generated through dts as well.
Fix Kconfig for the gpio driver accordingly.
Irq priority is not set by dts for D2000 as it's irq controller does
not support it.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Zephyr exposes the ability to set IRQ priority on IOAPIC.
To keep compatibility with Linux, let's add the priority at the end
after sense. So imported dtsi with interrupt-cells set to 2 will work as
usual.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
.config files can now be loaded from within the menuconfig interface.
Show-all mode is turned on if the selected menu entry becomes invisible.
Unrelated fix: The menu path at the top of the display no longer
includes implicit (indentation-based) submenus, which makes it a bit
less spammy and confusing.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Rescheduling was called unconditionally at the end of k_mem_slab_free
call. It is necessary only when thread is pending in the wait queue.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Current implementation hardcoded channel in received frame structure.
With this change channel can be retrieved from a OpenThread platform,
and put in the frame. In result procedures like Discovery can be
executed correctly. Change was tested with OpenThread Border Router.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit contains bugfix for Joiner eui-64 handling and setting radio
in correct mode after calling thread stop.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
In order to check whether an interrupt is pending for the driver user,
the driver itself needs to verify what interrupt paths are enabled (RX
and or TX) so that as not to return true misleadingly.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Skip writing index and symbol RST files whose content hasn't changed, to
avoid updating their timestamps. This makes documentation rebuilds much
faster, as Sphinx looks at the timestamp to determine if an RST file has
been updated.
Rebuilding docs with symbol reference up-to-date, before:
$ time make html
real 4m52.838s
user 4m46.242s
sys 0m4.249s
After:
$ time make html
real 0m48.731s
user 0m47.571s
sys 0m0.908s
Testing was done with 'make VERBOSE=1 SPHINXOPTS= html', suggested by
Marti Bolivar.
Piggyback a small cleanup to the code generating the select/imply
information.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Add IEEE 1003.1 Posix Style file system API support.
These API's will internally use corresponding Zephyr
File System API's.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Andy Ross