Commit Graph

3739 Commits

Author SHA1 Message Date
Anas Nashif
66111d7d3d logging: use BUILD_ASSERT_MSG instead of _Static_assert
_Static_assert is not supported with all toolchains, use macro instead
which can handle _Static_assert not being defined.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-07-27 09:19:57 -04:00
Jun Li
9b6ad4067b bluetooth: add callback to notify pairing is complete
Added two new callbacks for Bluetooth stack to notify
the application that pairing has been completed or failed.

fixes: #8390

Signed-off-by: Jun Li <jun.r.li@intel.com>
2018-07-27 16:16:52 +03:00
Spoorthi K
300b060ee1 obj_tracing: Declare object trace list for queue
Trace list is required to obtain the queue objects
created and parse the list to get
the object count.

Signed-off-by: Spoorthi K <spoorthi.k@intel.com>
2018-07-27 07:51:26 -04:00
Tomasz Bursztyka
2ba28dd78c net/dhcpv4: Unify timeout management in a unique k_delayed_work
This reduces memory overhead on net_if_dhcpv4: 16 bytes vs 120 bytes
before. This might proove to be beneficial when there are many network
interface.

dhcpv4 ROM consumption is now 2132 bytes vs 4224 (many switches removed)

Fixes #8727

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-07-27 13:00:01 +03:00
Robert Lubos
7826228def net: tls: Add socket option to set peer verification level
Add write only TLS secure option to set peer verification level for
TLS connection.

This option accepts an integer with a peer verification
level, compatible with mbedtls values (0 - none, 1 - optional, 2 -
required.

By default, socket mimics mebdTLS behavior - (none for server, required
for client).

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
3d560e14ac net: tls: Add socket option to read chosen ciphersuite
Add TLS secure socket option to read a ciphersuite chosen during TLS
handshake. Might be useful during development.

This is a read-only option that returns an integer containing an
IANA assigned ciphersuite identifier of chosen ciphersuite.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
11c24c855d net: tls: Add socket option to select ciphersuites
Add TLS secure socket option that enables to narrow list of ciphersuites
available for TLS connection.

This option accepts an array of integers with IANA assigned ciphersuite
identifiers and returns such.

By default, every statically configured ciphersuite is available for a
socket and getsockopt returns an array of these.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
915317724c net: tls: Add socket option to set TLS hostname
Add write-only TLS secure socket option to set hostname.

This option accepts a string containing the hostname. May be NULL, to
disable hostname verification.

By default, an empty string is set as a hostname for TLS clients,
to enforce hostname verification in mbedTLS.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
48e055577b net: tls: Add socket option to select TLS credentials
Add TLS secure socket option to select TLS credentials to use.

This option accepts and returns an array of sec_tag_t that indicate
which TLS credentials should be used with specific socket.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
f959b5c164 net: tls: Add TLS socket options placeholder
Add TLS secure sockets wrapper for getsockopt/setsockopt functions.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
11f7abcefd net: socket: Define getsockopt() and setsockopt()
Define socket option functions and make them return ENOPROTOOPT.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Robert Lubos
d09cbcaf6f net: tls: Add credential management subsystem
Add TLS credential management subsystem that enables to register TLS
credentials in the system. Once specific credentials are registered in
the system, they will be available for TLS secure sockets to use.

To use a TLS credential with a socket, the following steps have to be
taken:
1. TLS credential has to be registered in a system-wide pool, using the
API provided in "net/tls_credentials.h" header file.
2. TLS credential (and other TLS parameters) should be set on a socket
using setsockopt().

Note, that there is no need to repeat step 1 for different sockets using
the same credentials. Once TLS credential is registered in the system,
it can be used with mulitple sockets, as long as it's not deleted.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
2018-07-26 12:13:15 -04:00
Tomasz Bursztyka
5ebc86bdc6 net/ethernet: A device driver api uses struct device *dev
Always use struct device *dev as first parameter for a device driver
API.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2018-07-26 13:55:38 +03:00
Kumar Gala
8777ff1304 Fix compile errors related to errno.h
Because errno.h is defined in terms of a syscall we can get into trouble
when one syscall/<FOO.h> ends up include another syscall/<BAR.h>.

Moving errno.h from kernel_includes.h to kernel.h breaks the possible
inclusion issue on some ARM platforms (which arm_mpu.h ends up include
soc.h which ends up include kernel_includes.h which would include
errno.h).

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-07-25 23:38:13 -04:00
Shawn Mosley
573f32b6d2 userspace: compartmentalized app memory organization
Summary: revised attempt at addressing issue 6290.  The
following provides an alternative to using
CONFIG_APPLICATION_MEMORY by compartmentalizing data into
Memory Domains.  Dependent on MPU limitations, supports
compartmentalized Memory Domains for 1...N logical
applications.  This is considered an initial attempt at
designing flexible compartmentalized Memory Domains for
multiple logical applications and, with the provided python
script and edited CMakeLists.txt, provides support for power
of 2 aligned MPU architectures.

Overview: The current patch uses qualifiers to group data into
subsections.  The qualifier usage allows for dynamic subsection
creation and affords the developer a large amount of flexibility
in the grouping, naming, and size of the resulting partitions and
domains that are built on these subsections. By additional macro
calls, functions are created that help calculate the size,
address, and permissions for the subsections and enable the
developer to control application data in specified partitions and
memory domains.

Background: Initial attempts focused on creating a single
section in the linker script that then contained internally
grouped variables/data to allow MPU/MMU alignment and protection.
This did not provide additional functionality beyond
CONFIG_APPLICATION_MEMORY as we were unable to reliably group
data or determine their grouping via exported linker symbols.
Thus, the resulting decision was made to dynamically create
subsections using the current qualifier method. An attempt to
group the data by object file was tested, but found that this
broke applications such as ztest where two object files are
created: ztest and main.  This also creates an issue of grouping
the two object files together in the same memory domain while
also allowing for compartmenting other data among threads.

Because it is not possible to know a) the name of the partition
and thus the symbol in the linker, b) the size of all the data
in the subsection, nor c) the overall number of partitions
created by the developer, it was not feasible to align the
subsections at compile time without using dynamically generated
linker script for MPU architectures requiring power of 2
alignment.

In order to provide support for MPU architectures that require a
power of 2 alignment, a python script is run at build prior to
when linker_priv_stacks.cmd is generated.  This script scans the
built object files for all possible partitions and the names given
to them. It then generates a linker file (app_smem.ld) that is
included in the main linker.ld file.  This app_smem.ld allows the
compiler and linker to then create each subsection and align to
the next power of 2.

Usage:
 - Requires: app_memory/app_memdomain.h .
 - _app_dmem(id) marks a variable to be placed into a data
section for memory partition id.
 - _app_bmem(id) marks a variable to be placed into a bss
section for memory partition id.
 - These are seen in the linker.map as "data_smem_id" and
"data_smem_idb".
 - To create a k_mem_partition, call the macro
app_mem_partition(part0) where "part0" is the name then used to
refer to that partition. This macro only creates a function and
necessary data structures for the later "initialization".
 - To create a memory domain for the partition, the macro
app_mem_domain(dom0) is called where "dom0" is the name then
used for the memory domain.
 - To initialize the partition (effectively adding the partition
to a linked list), init_part_part0() is called. This is followed
by init_app_memory(), which walks all partitions in the linked
list and calculates the sizes for each partition.
 - Once the partition is initialized, the domain can be
initialized with init_domain_dom0(part0) which initializes the
domain with partition part0.
 - After the domain has been initialized, the current thread
can be added using add_thread_dom0(k_current_get()).
 - The code used in ztests ans kernel/init has been added under
a conditional #ifdef to isolate the code from other tests.
The userspace test CMakeLists.txt file has commands to insert
the CONFIG_APP_SHARED_MEM definition into the required build
targets.
  Example:
        /* create partition at top of file outside functions */
        app_mem_partition(part0);
        /* create domain */
        app_mem_domain(dom0);
        _app_dmem(dom0) int var1;
        _app_bmem(dom0) static volatile int var2;

        int main()
        {
                init_part_part0();
                init_app_memory();
                init_domain_dom0(part0);
                add_thread_dom0(k_current_get());
                ...
        }

 - If multiple partitions are being created, a variadic
preprocessor macro can be used as provided in
app_macro_support.h:

        FOR_EACH(app_mem_partition, part0, part1, part2);

or, for multiple domains, similarly:

        FOR_EACH(app_mem_domain, dom0, dom1);

Similarly, the init_part_* can also be used in the macro:

        FOR_EACH(init_part, part0, part1, part2);

Testing:
 - This has been successfully tested on qemu_x86 and the
ARM frdm_k64f board.  It compiles and builds power of 2
aligned subsections for the linker script on the 96b_carbon
boards.  These power of 2 alignments have been checked by
hand and are viewable in the zephyr.map file that is
produced during build. However, due to a shortage of
available MPU regions on the 96b_carbon board, we are unable
to test this.
 - When run on the 96b_carbon board, the test suite will
enter execution, but each individaul test will fail due to
an MPU FAULT.  This is expected as the required number of
MPU regions exceeds the number allowed due to the static
allocation. As the MPU driver does not detect this issue,
the fault occurs because the data being accessed has been
placed outside the active MPU region.
 - This now compiles successfully for the ARC boards
em_starterkit_em7d and em_starterkit_em7d_v22. However,
as we lack ARC hardware to run this build on, we are unable
to test this build.

Current known issues:
1) While the script and edited CMakeLists.txt creates the
ability to align to the next power of 2, this does not
address the shortage of available MPU regions on certain
devices (e.g. 96b_carbon).  In testing the APB and PPB
regions were commented out.
2) checkpatch.pl lists several issues regarding the
following:
a) Complex macros. The FOR_EACH macros as defined in
app_macro_support.h are listed as complex macros needing
parentheses.  Adding parentheses breaks their
functionality, and we have otherwise been unable to
resolve the reported error.
b) __aligned() preferred. The _app_dmem_pad() and
_app_bmem_pad() macros give warnings that __aligned()
is preferred. Prior iterations had this implementation,
which resulted in errors due to "complex macros".
c) Trailing semicolon. The macro init_part(name) has
a trailing semicolon as the semicolon is needed for the
inlined macro call that is generated when this macro
expands.

Update: updated to alternative CONFIG_APPLCATION_MEMORY.
Added config option CONFIG_APP_SHARED_MEM to enable a new section
app_smem to contain the shared memory component.  This commit
seperates the Kconfig definition from the definition used for the
conditional code.  The change is in response to changes in the
way the build system treats definitions.  The python script used
to generate a linker script for app_smem was also midified to
simplify the alignment directives.  A default linker script
app_smem.ld was added to remove the conditional includes dependency
on CONFIG_APP_SHARED_MEM.  By addining the default linker script
the prebuild stages link properly prior to the python script running

Signed-off-by: Joshua Domagalski <jedomag@tycho.nsa.gov>
Signed-off-by: Shawn Mosley <smmosle@tycho.nsa.gov>
2018-07-25 12:02:01 -07:00
Andrew Boie
12e6aadcb0 lib: newlib: add read/write syscalls
The read/write implementations call directly into the console drivers
using the hook mechanism, causing faults if invoked from user mode.

Add system calls for read() and write() such that we do a privilege
elevation first.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-25 14:57:51 -04:00
Andrew Boie
bc94cc1832 libc: minimal: add console system calls
The stdout console implementations for minimal libc call directly into
the various console drivers (depending on what specifc hooks are
registered) causing faults when invoked from user mode. This happens,
for example, when using printf() which eventually ends up calling
fputc().

The proper solution is to ensure privileges have been elevated before
the _stdout_hook is called. This was already done for printk().

puts() and fputs() have now been re-defined in terms of the
fputc() and fwrite() functions, which are now system calls.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-25 14:57:51 -04:00
Jukka Rissanen
9b8c83f44a net: Avoid holes in structs
Move struct members around in networking code so that we avoid
unnecessary holes inside structs. No functionality changes by
this commit.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-07-25 15:20:34 +03:00
David B. Kinder
5c086deccd doc: fix doxygen error in ethernet.h
Doxygen comments for net_eth_promisc_mode parameters were incorrect

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2018-07-24 16:24:10 -04:00
Jukka Rissanen
3f9c7bd159 net: Add promiscuous mode support
Allow user to set the network interface into promiscuous mode
and then receive all the network packets that are received by
that interface.

Fixes #7595

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-07-24 15:12:37 +03:00
Jukka Rissanen
bf9bae58d1 net: eth: Add generic promiscuous mode support
Allow ethernet L2 driver to set / unset the device driver
promiscuous mode flag.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-07-24 15:12:37 +03:00
Jukka Rissanen
b19cb207cb net: if: Add promiscuous mode set / unset functionality
User is able to set the network interface to promiscuous mode
and query the promisc mode status.

Note that currently this is only supported for ethernet bearer.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-07-24 15:12:37 +03:00
Andrew Boie
8e8dc1c528 net: relax net_ip.h check
This allows network stack headers to be included even if
no L3 networking support is enabled in Kconfig.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-24 11:43:46 +03:00
Ioannis Glaropoulos
90b64489e5 arch: arm: allow processor to ignore/recover from faults
This commit adds the implementation that allows the ARM CPU
to recover from (otherwise fatal) MPU faults. A new error
reason, _NANO_ERR_RECOVERABLE, is introduced. The error
reason is used to suppress fault dump information, if the
error is actually recoverable.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2018-07-23 10:50:30 -07:00
Krzysztof Chruscinski
fa90fdc42c logging: Macro argument evaluated when enabled
When log macro is disabled then its arguments should not be evaluated.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-23 10:29:23 -04:00
Ravi kumar Veeramally
3fafe4f9ad net: ipv6: Handle large IPv6 packets properly
Current implementation does not handle large extension headers
(e.g HBHO). Which resulted network stack crashes or due to
misinterpretation of lengths network packets are dropped. Also
caused issues while preparing IPv6 packet (e.g. large HBHO header
with IPv6 fragmentation support).

Issues fixed and provided more unit tests.

Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
2018-07-23 15:01:09 +03:00
Luiz Augusto von Dentz
2e2f122d51 Bluetooth: samples: Make use of BT_LE_ADV_OPT_USE_NAME
Use BT_LE_ADV_OPT_USE_NAME whenver possible since it does properly
track updates.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-07-23 14:45:58 +03:00
Luiz Augusto von Dentz
acc3e5129e Bluetooth: Add BT_LE_ADV_OPT_USE_NAME
This introduces a new advertising flag BT_LE_ADV_OPT_USE_NAME which can
be used by applications to make the stack automatically include the
Bluetooth Device Name in the Scan Response.

The name is also updated in case there is already an advertising
instance using it.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-07-23 14:45:58 +03:00
Luiz Augusto von Dentz
2637c978fe Bluetooth: Store device name
This uses bt_dev to store the name and allow changing it at runtime, in
addtion to that if CONFIG_BT_SETTINGS is defined make the name
persistent.

Fixes #8357

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-07-23 14:45:58 +03:00
Krzysztof Chruscinski
7fe2c3b14f logging: Fix static log filtering
LOG_MODULE_REGISTER() was missing setting compiled-in log level
which was evaluated when message was filtered if runtime filtering
was disabled. As the outcome logs were not printed when runtime
filtering was disabled.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-20 11:26:58 -04:00
Piotr Zięcik
96aa0d2133 kernel: Use accurate tick/ms conversion if clock rate is set at runtime
This commit enables accurate (based on 64-bit math) tick <-> ms
conversion if system clock rate is determined at runtime.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2018-07-20 10:17:47 -04:00
Piotr Zięcik
2fe998cdef kernel: Deprecate sys_clock_us_per_tick variable.
On some architectures tick time cannot be expressed as integer
number of microseconds, introducing error in calculations using
sys_clock_us_per_tick variable.

This commit deprecates the sys_clock_us_per_tick variable and
replaces its usage by more precise calculations based on
sys_clock_hw_cycles_per_sec and sys_clock_ticks_per_sec.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2018-07-20 00:03:52 -04:00
Andrew Boie
7f4d006959 kernel: fix errno access for user mode
The errno "variable" is required to be thread-specific.
It gets defined to a macro which dereferences a pointer
returned by a kernel function.

In user mode, we cannot simply read/write the thread struct.
We do not have thread-local storage mechanism, so for now
use the lowest address of the thread stack to store this
value, since this is guaranteed to be read/writable by
a user thread.

The downside of this approach is potential stack corruption
if the stack pointer goes down this far but does not exceed
the location, since a fault won't be generated in this case.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-19 16:44:59 -07:00
Andrew Boie
89f87ec56e syscalls: pull in arch/cpu.h
Need the implementation of _arch_syscall_invokeX() functions
to avoid build problems in some cases.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-19 16:44:59 -07:00
Andrew Boie
45f069a4bb arc: arch.h: move extern "C" after includes
Shouldn't declare this and then pull in headers, fixes
error like "util.h:41:1: error: template with C linkage"

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-19 16:44:59 -07:00
Andrew Boie
362716762b arm: arch.h: move extern "C" after includes
Shouldn't declare this and then pull in headers, fixes
errors like "util.h:41:1: error: template with C linkage"

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-19 16:44:59 -07:00
Andrew Boie
a74137f665 net: getaddrinfo: use memory allocation for res
We no longer use a global array for what is supposed to be
a memory allocation.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-07-19 08:56:21 -07:00
Krzysztof Chruscinski
c12fa740a2 logging: Remove log.h including in headers limitation
Added macro trick which evaluates macro when used and not
when header file is included. After this change order of
defining LOG_LEVEL and including log.h is no longer fixed.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-19 10:05:00 -04:00
Krzysztof Chruscinski
927c1470da logging: Internal logger headers cleanup
Moved declarations and macros which are used in log_core from
log_instance.h to log_core.h. Moved log level defines from
log.h to log_instance.h because log.h is not recommended to
be included in headers (contrary to log_instance.h).

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-19 10:05:00 -04:00
Niranjhana N
414c39fc94 posix: add pthread_key and pthread_once APIs
Added 4 new pthread_key APIs for thread-specific data
key creation, deletion, setting and getting the values.

Added a key list to the posix_struct for threads.

Added pthread_once API.

Signed-off-by: Niranjhana N <niranjhana.n@intel.com>
2018-07-19 08:46:33 -04:00
Jonathan Yong
40f743669b net: eth: Convert to use callbacks to query stats
The advantage to this approach allows drivers for
devices that already keep statistics data on hardware
registers to use those instead, rather than try to
replicate it the same counters again within the driver
itself.

The eth_native_posix.c driver though do not benefit
from this, is modified to use the new callback system.

Suggested-by: Jukka Rissanen <jukka.rissanen@intel.com>
Signed-off-by: Jonathan Yong <jonathan.yong@intel.com>
2018-07-19 13:46:13 +03:00
Alberto Escolar Piedras
15d847add8 native: Add NATIVE_EXIT_TASK hooks
Some of the native application components or drivers need to
do a proper cleanup before the executable exits.
So we provide a macro similar to SYS_INIT but which will be
called just before exiting.
This can be used for freeing up resources, closing descriptors,
or doing any neccessary signaling to any other host process.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-07-18 15:43:12 -04:00
Olivier Martin
e7ae7334db lib/crc: Add CRC32 support
It only adds CRC32 IEEE support at the moment.

Signed-off-by: Olivier Martin <olivier.martin@proglove.de>
2018-07-18 10:00:12 -04:00
Mariusz Skamra
051c1f5fd6 subsys: mgmt: Fix broken OTA firmware update
This fixes freeing net_buf without bt_conn_unref call.
As the result, the OTA was broken.

Fixes 8636
Signed-off-by: Mariusz Skamra <mariusz.skamra@codecoup.pl>
2018-07-18 14:32:06 +02:00
Gil Pitney
42f51ef08d drivers: wifi: winc1500: Use offload_context instead of user_data.
The wifi_winc1500 driver's socket id is stored in
net_context->user_data, which may be overwritten later at
the socket layer, which also uses the net_context->user_data
field to store socket flags.

This patch introduces a dedicated offload_context field
for use by offload drivers, and updates the wifi_winc1500 offload
driver to use this field instead of user_data.

Fixes #8820

Signed-off-by: Gil Pitney <gil.pitney@linaro.org>
2018-07-18 07:47:45 -04:00
Sathish Kuttan
08547cbb10 drivers: codec: APIs for Audio Codecs
Adds APIs to configure audio codec(s)

Signed-off-by: Sathish Kuttan <sathish.k.kuttan@intel.com>
2018-07-17 09:57:18 -04:00
Michael Scott
538d3418fd net: lwm2m: introduce user-code callbacks for obj create/delete
LwM2M engine now supports optional resources that may need to be
setup or torn down in user-based code during object instance
creation / deletion.

Let's provide callbacks that can be used for this purpose.

Signed-off-by: Michael Scott <mike@foundries.io>
2018-07-17 13:03:18 +03:00
Michael Scott
56e240e528 net: lwm2m: make lwm2m_engine_exec_cb_t more generic
Let's rename lwm2m_engine_exec_cb_t to lwm2m_engine_user_cb_t so that
future user-code callbacks can make use of the same definition.

Signed-off-by: Michael Scott <mike@foundries.io>
2018-07-17 13:03:18 +03:00
Krzysztof Chruscinski
46db70ac4c doc: subsys: logging: internal thread and thread wake up
Documenting new logger features: waking up processing thread
and internal logger processing thread.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-16 11:12:16 -04:00
Krzysztof Chruscinski
1ba542c352 logging: Logger to wake up logs processing thread
Added configurable threshold of number of buffered log messages
on which log wakes up thread which processes buffered logs. Thread
ID is provided during logger initialization. Feature is optional
and can be disabled by setting CONFIG_LOG_PROCESS_TRIGGER_THR to 0.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-07-16 11:12:16 -04:00