The implementation of blocking calls is common for all the client
models.
This change reduces the code duplication by introducing new API that
helps to manage acknowledged messages.
Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no>
The net_capture API documentation was not referenced by
network documentation so the API reference documentation
was not generated for it. This commit adds links to the
net_capture API.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Add information to documentation how to monitor and capture
received and sent network traffic.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This patch removes sdhc_api references since such API
does not actually exist. SD card controller drivers
use disc driver interface. Accordingly, the SDHC documentation,
which actually describes how to connect a SD card via SPI
and has little to do with SD host controller (SDHC),
is also moved to disk access page and adapted.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add information about power state constraints and more information
about power management policy.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This feature predated the tickless kernel and has been in legacy mode
for a while. We now have no drivers or systems that do not support
tickless, so remove this option and cleanup the code to only use
tickless.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The clock/timer APIs are not application facing APIs, however, similar
to arch_ and a few other APIs they are available to implement drivers
and add support for new hardware and are documented and available to be
used outside of the clock/kernel subsystems.
Remove the leading z_ and provide them as clock_* APIs for someone
writing a new timer driver to use.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This new subsystem can be used to supervise individual threads. It
is based on a regularly updated kernel timer, whose ISR is never
actually called in regular system operation.
An existing hardware watchdog can be used as an optional fallback if
the task watchdog itself gets stuck.
Signed-off-by: Martin Jäger <martin@libre.solar>
There are several interesting use caseis of VFS scattered around
in samples, for example usage of FAT in RAM in USB mass storage
that are worth mentioning in VFS reference documentation.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Replace *_thread_resource_pool_assign() in the reference with the new
k_thread_heap_assign() since both k_thread_resource_pool_assign() and
z_thread_resource_pool_assign() has been removed prio to v2.5 (by the
commit c770cab1a3 and 3c2c1d85b0 respectively) along with the
k_mem_pool API removal.
For the resource pool inheritance test, the variables with "res_pool"
string has been replaced by "heap_mem" to align with the documentation
fix. No functionality has been changed.
Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>
The xtensa atomics layer was written with hand-coded assembly that had
to be called as functions. That's needlessly slow, given that the low
level primitives are a two-instruction sequence. Ideally the compiler
should see this as an inline to permit it to better optimize around
the needed barriers.
There was also a bug with the atomic_cas function, which had a loop
internally instead of returning the old value synchronously on a
failed swap. That's benign right now because our existing spin lock
does nothing but retry it in a tight loop anyway, but it's incorrect
per spec and would have caused a contention hang with more elaborate
algorithms (for example a spinlock with backoff semantics).
Remove the old implementation and replace with a much smaller inline C
one based on just two assembly primitives.
This patch also contains a little bit of refactoring to address the
scheme has been split out into a separate header for each, and the
ATOMIC_OPERATIONS_CUSTOM kconfig has been renamed to
ATOMIC_OPERATIONS_ARCH to better capture what it means.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Revise the description of queues, work items, and delayable work items
to reflect the terminology and API provided by the new implementation.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The default shell configuration has heavy flash and memory requirements,
requiring project maintainers to set many configuration options to "n"
to keep flash and memory requirements within reason.
This adds a new configuration option, CONFIG_SHELL_MINIMAL, which will
disable flash and memory heavy options by default, and allow project
maintainers to select/imply only the options they want.
On a quick test from an ARM board I'm working on, enabling this option
cut flash space requirements by ~8 KB, and memory requirements by ~1 KB.
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
This adds X86 keyword to the kconfigs to indicate these are
for x86. The old options are still there marked as
deprecated.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Fixes a typo in the condition variable documentation.
Also fixes two numbered lists not rendering correctly.
Signed-off-by: Alex Martens <alexander.martens@intel.com>
Although the master API is stable, the slave API has never been
documented and has only two in-tree implementations with no uses
outside of a single test application. It is marked experimental in
this commit.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Power management documentation was still using "deep sleep" and
"sleep" concepts. This commit just remove them, since they are not
longer used, and introduce the new power states defined in pm_state.
As each state has its own meaning and it is documented in the API,
lets just reference them here and avoid getting out of sync.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Update the documentation for Lazy Stacking in Cortex-M, to
reflect the functionality changes (activate the lazy stacking
dynamically when building with MPU stack guards).
Make a note that the FP sharing mode is now default in Cortex-M.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Adds API reference for sys_mutex and futex to mutex documentation,
adds Doxygen documentation for SYS_MUTEX_DEFINE and fixes typo in
futex documentation.
Fixes#27829
Signed-off-by: Lauren Murphy <lauren.murphy@intel.com>
The scheduler documentation was updated before to define a reschedule
point, but the related term sleep was not clearly described. Add a
definition, and link to it from the API terminology.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The documentation example was giving the impression that time slices are
not reset when a thread is scheduled.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Clean up logging menuconfig by grouping configuration into
sections like: mode, processing configuration, backends.
Additionlly, removed LOG_ENABLE_FANCY_OUTPUT_FORMATTING which is no
longer in use.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Change subsystem to use struct pm_state with substate-id instead of
using only the power state category.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Remove conditionals (PM_DEEP_SLEEP_STATES and PM_SLEEP_STATES) from
power management code. Now these features are always available when
power management is enabled.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Migrate the whole pm subsystem to use new power states information
from power_state.h and get states and residency properties from
device tree.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Discussion about how to re-spawn threads led to the discovery that our
documentation on exactly when that was legal was ambiguous and
confusing. Rewrite it to be explicit.
Fixes#28970
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Describe the role of these APIs, key concepts that they depend on, and
expose the low-level API.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
It can be useful to check if an unknown devicetree node identifier
refers to a known node. Add a helper for this. Under the hood, we take
advantage of the ordinals API, which provides the unique identifiers
we need.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
First, the maximum heap size must fit in 31 bits worth of chunks
because the internal 32-bit field holding the size is shared with
the `used` bit.
Then the mention of a 256-byte block in the doc is no longer
relevant. That pertained to the previous allocator implementation.
And ditto for the HEAP_MEM_POOL_MIN_SIZE kconfig option.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Adds a linker section for Cortex-M instruction tightly coupled memory
(ITCM), similar to the existing section for DTCM. A new executable MPU
region is not added as there isn't currently a need to make this section
accessible to user mode. This section can be enabled by setting a device
tree chosen node zephyr,itcm.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
