Add a devicetree/zephyr.h header, which is meant to contain
definitions for /chosen properties specific to Zephyr.
Currently, this just deals with zephyr,entropy. We add a
DT_CHOSEN_ZEPHYR_ENTROPY_LABEL macro which expands to the label for the
node pointed to by zephyr,entropy.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The original API was misnamed, as the intent was to provide a manager
that decoupled state management from the service that needed to be
turned on or off. Update all the names, shortening them where
appropriate removing unncessary internal components like _service.
Also remove some API that misled developers into believing that onoff
managers are normally expected to be exposed directly to consumers.
While this is a use case, in most situations there are service or
client-specific actions that need to be coupled to transition events.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
k_poll() for a signal is often desired for notification of completion
of asynchronous operations, but there are APIs where it may be
necessary to invoke "asynchronous" operations from contexts where
sleep is disallowed, or before the kernel has been initialized.
Extract the general notification solution from the on-off service into
a utility that can be used for other APIs.
Also move documentation out to a resource management section.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Handler functions are now referred to as verification functions,
update documentation to reflect this.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
In order to de-duplicate 2 macros with the same use,
merge BUILD_ASSERT(), BUILD_ASSERT_MSG() into one macro.
Make BUILD_ASSERT_MSG() deprecated.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Trivial cleanup: sort the devicetree/foo.h includes and the relevant
sections for them in the documentation.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This is joint work with Kumar Gala (see signed-off-by).
Document the changes to the generated node macros in macros.bnf,
moving the old file to legacy-macros.bnf and putting it in its own
section.
The actual generated macros are now a low-level detail, so rewrite the
foregoing sections as examples in terms of the new <devicetree.h> APIs.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This page has a lot more information about APIs than just stability,
and I believe it's currently our only exhaustive list of APIs.
Rename it to API Overview.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
k_cpu_idle() API does not need to be invoked with interrupts
unlocked; it is actually invoked with interrupts locked by
the kernel CPU idling mechanism. In most architectures, the
function is, actually, un-locking interrupts itself. We need
to remove this comment from the documentation of the CPU
idle API. We add a note about the un-locking of interrupts.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This reverts commit 974aa3add4.
Pull Request #23437 was merged by mistake with an invalid manifest.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
In order to de-duplicate 2 macros with the same use,
merge BUILD_ASSERT(), BUILD_ASSERT_MSG() into one macro.
Make BUILD_ASSERT_MSG() deprecated.
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Name all subsystem reference consistently with an '_api' postfix and
clean up naming and folder structure in some cases.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Move the terminology section to its own page in preparation for
additional sections to be addded later.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This never needed to be put in a separate gperf table.
Privilege mode stacks can be generated by the main
gen_kobject_list.py logic, which we do here.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Private type, internal to the kernel, not directly associated
with any k_object_* APIs. Is the return value of z_object_find().
Rename to struct z_object.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Rather than stuffing various values in a uintptr_t based on
type using casts, use a union for this instead.
No functional difference, but the semantics of the data member
are now much clearer to the casual observer since it is now
formally defined by this union.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This is a copy of rand32_timer.c that uses
z_do_read_cpu_timestamp32() instead of k_cycle_get_32(),
with some logic to ensure different values when called in
rapid succession missing.
Like the other driver, its reported values are not random,
it's a testing generator only.
This appears to have no advantages over rand32_timer.c,
just remove it. In QEMU emulation, the reported TSC values
tend to have the lowest five bits zeroed.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Improve settings example snippet so that it builds and works as
expected. For usability purposes, add print of stored value.
Signed-off-by: Jacob Siverskog <jacob@teenage.engineering>
Added references to missing settings API groups so them
will be generated in documentation build.
Missing API are doxygen subgroup of already referenced doxygen group,
but subgroups aren't automatically extracted to the documentation
output.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Add detailed documentation for macros that get generated by
gen_defines.py. Covers properties, interrupts, phandle-arrays, clocks,
buses, flash partitions, SPI, etc.
Should be relatively complete now, though there might be overlooked
details.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Co-Authored-By: Kumar Gala <kumar.gala@linaro.org>
Co-Authored-By: Marti Bolivar <marti.bolivar@nordicsemi.no>
Instead of using a custom offloading interface, users can use
`NET_SOCKET_REGISTER` macro to register custom socket API provider. This
solution removes a limitation, that only one offloaded interface can be
registered and that it cannot be used together with native IP stack.
The only exception remainig are DNS releated operations -
`getaddrinfo`/`freeaddrinfo`, which, when offloaded, have to be
registered specifically.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
There are various situations where it's necessary to support turning
devices on or off at runtime, includin power rails, clocks, other
peripherals, and binary device power management. The complexity of
properly managing multiple consumers of a device in a multithreaded
system suggests that a shared implementation is desirable. This
commit provides an API that supports managing on-off resources.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Define a minimal set of attributes that can be used to indicate the
allowed context for invoking specific Zephyr API and kernel functions,
and the effect of invoking them on thread and other behavior.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This term needs to be defined to support documenting the effect of
various API calls on scheduler selection of the running thread.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Introduce the CMake variable SYSCALL_INCLUDE_DIRS to support
out-of-tree syscall declarations.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Patch introduce references to LittleFS instead of NFFS where it
was suitable. In other places NFFS mentions were removed
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
`TLS_PEER_VERIFY` and `TLS_DTLS_ROLE` options accept specific values,
yet no symbols were defined for them. In result, magic numbers were used
in several places, making the code less readable.
Fix this issue, by adding the missing symbols to the `socket.h` header,
and using them in places where related socket options are set.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add a simple documentation section for the Zero-Latency
IRQs feature supported by the kernel.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Document that the Dynamic Direct interrupts feature is
implemented and supported as an ARM-only API.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
The original implementation left this function hidden in init.h which
prevented it from showing up in documentation. Move it to kernel.h,
and document it consistent with the other functions that allow caller
customization based on context.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
We have a collection of python scripts that are part of our build
system. This PR collects docstring comments added to these scripts into
a summary document. Previous references to just the script name in
other documentation are updated to point to this build tool
documentation.
Some of the scripts needed an update to be processed (via include
directives) consistently.
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Before introducing the code for ARM64 (AArch64) we need to relocate the
current ARM code to a new AArch32 sub-directory. For now we can assume
that no code is shared between ARM and ARM64.
There are no functional changes. The code is moved to the new location
and the file paths are fixed to reflect this change.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
This commit complements documentation of Zephyr HCI VS
commands. In particular, it documents the newly introduced
commands
- BT_HCI_OP_VS_WRITE_TX_POWER_LEVEL
- BT_HCI_OP_VS_READ_TX_POWER_LEVEL
These provide HCI-level control over the Tx power of the
BLE radio on a per role/connection basis.
The functionality is enabled upon the Kconfig advanced configuration
triggered by
- BT_CTLR_TX_PWR_DYNAMIC_CONTROL
depending on the enablement of Zephyr HCI vendor-specific command
extensions.
Signed-off-by: Andrei Stoica <stoica.razvan.andrei@gmail.com>
Remove leading/trailing blank lines in .c, .h, .py, .rst, .yml, and
.yaml files.
Will avoid failures with the new CI test in
https://github.com/zephyrproject-rtos/ci-tools/pull/112, though it only
checks changed files.
Move the 'target-notes' target in boards/xtensa/odroid_go/doc/index.rst
to get rid of the trailing blank line there. It was probably misplaced.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Adds a deeper hierarchy to the Bluetooth Mesh documentation by moving
the modules in separate pages with a brief description of the concepts
in each module.
Adds the full list of specification defined Health model faults.
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>
All states in the thread state diagram were initial-cap except
"suspended". Make it Suspended for consistency.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Removed some cut/paste from mynewt with references to os_callout,
os_event in example snippets.
code examples were also aligned to current settings handle API.
fixes#20743
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Add a simple block diagram detailing the SMP initialization flow. Not
pretty, but hopefully reasonable.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Documentation about scheduling options was burried in the Kconfig help.
It has better visibility as part of the scheduling section of the main
kernel reference pages.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
One shows how globals are routed for automatic memory
domains. The other illustrates control flow when making
system calls.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Mark the old time conversion APIs deprecated, leave compatibility
macros in place, and replace all usage with the new API.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Promote the private z_arch_* namespace, which specifies
the interface between the core kernel and the
architecture code, to a new top-level namespace named
arch_*.
This allows our documentation generation to create
online documentation for this set of interfaces,
and this set of interfaces is worth treating in a
more formal way anyway.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We need to pass system call args using a register-width
data type and not hard-code this to u32_t.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
1) Add cryptographically secure random functions to provide
FIPS 140-2 compliant random functions.
2) Add name to random function choice selectors to ease
selection in SOC .defconfig files
3) Add bulk fill random functions.
Signed-off-by: David Leach <david.leach@nxp.com>
This commit allows a more dynamic approach for specifying that a zephyr
library must be placed in a dedicated app memomory partition.
This is still done by defining the partition in code using
K_APPMEM_PARTITION_DEFINE, but now the zephyr library can be added to
the generation of partition table using zephyr_library_app_memory
instead of modifying the overall zephyr/CMakeLists.txt file.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Settings documentation was placed under storage paragraph
in documentation tree, which suggested that it was another
storage solution. In fact settings uses storage modules as
its persistent storage back-end.
This patch creates dedicated run-time configuration paragraph
which aim to explain existence (and emphasize) of common run-time
configuration system in Zephyr-RTOS and rationale for using it.
The Settings paragraph is placed under this paragraph as it is only
sub-module which implements the solution.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
This generic video API can be used to capture/output video frames.
Once a video buffer is enqueued to a video device endpoint, device owns
the buffer and can process to capture (camera), output (disk, display),
convert (hw encoder)... User can then call dequeue to retrieve
the processed buffer (video driver ensure cache coherency).
Once dequeued, video buffer is owned by user (e.g. for frame
processing, display buffer update, write to media, etc...).
For each video-buffer, user needs allocate the associated frame buffer
via video_buffer_alloc. Buffer format is defined by video device
endpoint configuration. Video device can be controlled (e.g. contrast,
brightness, flip...) via controls.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Add documentation for the Websocket API, also add information how
to use the Websocket as a transport for other high level protocols
like MQTT.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit updates the settings backend documentation
to clearly state that it cannot provide old entities
before the final one.
Signed-off-by: Radoslaw Koppel <radoslaw.koppel@nordicsemi.no>
DTSpec writes this as a single word, presumably to make it easier to
grep for / more precise. Follow along in the rest of the docs now that
our main DT docs page agrees with this usage.
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
SMP had API-level docs, but no architecture-level description.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Changed return parameter description from
"@retval filter id on success" to
"@retval filter_id on success".
This change suppresses the doxy warnings.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit adds a lot more documentation to the Controller Area
Netwok API. The documentation is move to the networking section.
Signed-off-by: Alexander Wachter <alexander.wachter@student.tugraz.at>
This commit adds new k_work_poll interface. It allows to
submit given work to a workqueue automatically when one of the
watched pollable objects changes its state.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Add diagram showing the current system power management and the central
method of device power management.
The diagrams were made using draw.io and can be edit using draw.io.y
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Moving all thread docs into 1 page was a bit too much. Split the section
a bit and remove redundant and useless sections and move some thread
related documentation from the scheduling page to threads (thread states
and priorities).
Add a new figure for thread states.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Added CONIFG_LOG_BLOCK_IN_THREAD option to block until buffer for
log message is available. When log message is called in the thread
and there is no buffer available in the pool, thread will block with
configurable timeout (CONFIG_LOG_BLOCK_IN_THREAD_TIMEOUT_MS). If
buffer cannot be allocated by that time, message will be dropped.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
We don't really have docs on how fatal errors are induced
or handled. Provide some documentation that covers:
- Assertions (runtime and build)
- Kernel panic and oops conditions
- Stack overflows
- Other exceptions
- Exception handling policy
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
We now more throroughly discuss memory domains, thread
resource pools, and automatic memory domains.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
System call arguments, at the arch layer, are single words. So
passing wider values requires splitting them into two registers at
call time. This gets even more complicated for values (e.g
k_timeout_t) that may have different sizes depending on configuration.
This patch adds a feature to gen_syscalls.py to detect functions with
wide arguments and automatically generates code to split/unsplit them.
Unfortunately the current scheme of Z_SYSCALL_DECLARE_* macros won't
work with functions like this, because for N arguments (our current
maximum N is 10) there are 2^N possible configurations of argument
widths. So this generates the complete functions for each handler and
wrapper, effectively doing in python what was originally done in the
preprocessor.
Another complexity is that traditional the z_hdlr_*() function for a
system call has taken the raw list of word arguments, which does not
work when some of those arguments must be 64 bit types. So instead of
using a single Z_SYSCALL_HANDLER macro, this splits the job of
z_hdlr_*() into two steps: An automatically-generated unmarshalling
function, z_mrsh_*(), which then calls a user-supplied verification
function z_vrfy_*(). The verification function is typesafe, and is a
simple C function with exactly the same argument and return signature
as the syscall impl function. It is also not responsible for
validating the pointers to the extra parameter array or a wide return
value, that code gets automatically generated.
This commit includes new vrfy/msrh handling for all syscalls invoked
during CI runs. Future commits will port the less testable code.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This fixes some typos. Also fix the meaning of a struct field
where the confusion caused by copy-and-paste from another
field.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add a table summarizing the key characteristics of each
of the data passing objects.
It is useful for readers to have an overview they can skim without
having to read each section in detail.
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
Splitting these up by area helps make the sidebar a bit easier to
navigate, and will also let us insert additional overview information
about each area.
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
Add a simple diagram on the device driver model.
Instead of saying "this device driver", spell out that the note
is for the random number generator driver, as the visual
presentation does not have clear distinction.
Also update some formatting.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This PR updates the documentation to cover a technical solution to
providing a driver instance that extends the functionality of a
subsystem API. The solution described was mooted in Zephyr PR #17072
and approved by the Technical Steering Committee during its 2019-08-07
meeting.
Relates-to: #11993
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
When init level hierarchy was reworked the documentation was switched to
describe the new levels, but the count of relevant levels was not
changed.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
