C++ support moved from nanokernel.h to kernel.h.
Change-Id: I5e1631941e26f4ab3f311b680267b743bab15e40
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Symbols now use the K_ prefix which is now standard for the
unified kernel. Legacy support for these symbols is retained
to allow existing applications to build successfully.
Change-Id: I3ff12c96f729b535eecc940502892cbaa52526b6
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Enhance C++ support by adding placement versions of the new and
delete operators. Similar to the regular new and delete which
are already included.
Change-Id: If3f48fbf2f05164a8bea3f66ae84e3e37fb4f528
Signed-off-by: Sakari Poussa <sakari.poussa@intel.com>
This adds convenient helper so that users don't need to touch nano_sem
internals. Wrapper for unified kernel is added too.
Change-Id: Ic0af8b1ea302939d5239648327cb3cc125c48148
Signed-off-by: Szymon Janc <ext.szymon.janc@tieto.com>
API documenation for Nanokernel FIFO make no mention that the data items
added to the FIFO must include and reserve the first 32 bits for use as
a pointer to the next item in the FIFO. This adds that note, as described
in the overview FIFO documentation.
Change-Id: I8cf0072d97dbb373a73d534f39b72831c726f4ef
Jira: ZEP-747
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Mirrors kernel.h to allow both nanokernel and microkernel applications
easy access to section tags such as __noinit.
Change-Id: Ie01395ac63393b7afbebfe26c723702918bfe9ff
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This allows current code to build but using the definitions from
kernel.h instead of the original headers.
Change-Id: I8f51a83bab4448cd63aa6c54b8e357a8ad6cc1e2
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Introduce the family of nano_fifo_put_list and nano_fifo_put_slist APIs,
which allow queuing a list of elements on a nanokernel fifo in one
shot. When called from an ISR or a fiber, the behaviour is not really
different than calling nano_fifo_put for each element to enqueue.
However, when called from a task, it allows the task to enqueue the full
list without yielding to fibers that were waiting on the fifo.
All fibers currently waiting on the fifo will be awakened and given an
element from the list in their order of priority. When some elements are
not matched with a receiver, they are queued normally.
There are two ways of passing a list: with either an ad-hoc queue, by
passing the head and the tail elements, or with a sys_slist_t object.
For the latter, the object must be reinitialized afterwards.
Change-Id: I6ac077f556dc39995191e9149c4a047a3433826f
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
It is now safe to introduce the callback since nano_timer_init now
calls _nano_timeout_init which does takes care of initializing all
the fields properly.
Change-Id: I5735eeebef233a0a541ec8b2a354b65da98082fc
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This adds a callback to struct _nano_timeout which is called in ISR
context allowing more flexible handling of timeouts.
Change-Id: If837b0b51b24dfffebac6f99f4d66fdf01c164f0
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Many drivers need to start fibers whose parameters are based on user
configuration. Make it easier to specify such parameters by creating a
fiber_config structure and a wrapper to use it.
Change-Id: I26917ada71acbc676c0f32b6ee081aff7bb1d6d8
Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
Adds the nanokernel infrastructure to permit microkernel tasks
to block/unblock on nanokernel objects. Multiple tasks may wait
on a nanokernel object's dedicated task wait queue.
It is important to note that when data is posted to the object
all the tasks on that object's dedicated task wait queue may be
woken up but the data is not immediately given to any of the tasks.
This is done to maintain consistent behavior with the nanokernel
as in a nanokernel system, fibers are given preference in both
waiting on and getting data from a nanokernel object.
Change-Id: Ia5c7f21ae59a367d9fec23dafc3a918d9e767db5
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Of the 3 related functions;
_thread_essential_set()
_thread_essential_clear()
_is_thread_essential()
The first two are parameter-less and always operate on
"_nanokernel.current". The last one takes a 'thread' parameter but will
operate on _nanokernel.current if the parameter is NULL. All calls to
_is_thread_essential() pass NULL!
This change makes the 3 functions consistent by removing the parameter
to the 3rd function. This should also be marginally more efficient,
though consistency was the motivation. This change corrects the doc
preamble to all 3 functions.
(These functions would probably be better as inlines. Also, the choice
of when to use wrappers seems a bit arbitrary. E.g. there's nothing
for setting/testing the "FIBER" flag.)
Change-Id: Ie3589f8a28b227c6d7a3a31b664d3b3e6e9c6d17
Signed-off-by: Geoff Thorpe <geoff.thorpe@nxp.com>
Fixes a problem where the nanokernel FIFO state information could get
out of sync due to a timeout.
The nanokernel FIFO structure nano_fifo now maintains two separate
queues: one for waiting fibers and the other for posted data. This
permits the safe and independent querying of the queues as needed
when getting and/or putting data from/on the nanokernel FIFO.
Change-Id: Ifbcb5004558b06fc55cad2a955f5be20e716b392
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Restructure the kernel's object tracing implementation
to provide a public API that allows debug tools to use
the debug hooks easier and allows kernel developers
to extend the kernel's object tracing scope and include
new kernel objects easier.
The API provides the trace list abstraction to keep track
of different types of kernel objects. The API contains
a simple single-linked list implementation that allows
to save space and simplifies the access to the data for
debug tools such as gdb.
Change-Id: Ic4d393d584576f67f2c5b706e61bae08869debba
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
Like for the other context-specific APIs, also provide a
context-agnostic wrapper.
Change-Id: Icf0a62f4c06aec42f0febc298edbd8bdeec63749
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Adds the following routines for waking a fiber that was previously
put to sleep using fiber_sleep().
isr_fiber_wakeup()
fiber_fiber_wakeup()
task_fiber_wakeup()
Change-Id: I7d78ee6997163d71b92f388a7b4c484f2e97862b
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
The fiber_start() family of routines now return a nanokernel
thread id (nano_thread_id_t). This is a pre-requisite step for
allowing fiber_sleep() operations to be cancelled.
Change-Id: I74a3885eda3252c158f4a48e90244569633469c3
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Instead of returning a 'void *', the nanokernel fiber_delayed_start()
family of routines now return a handle of type nano_thread_id_t.
Consequently, the nanokernel fiber_delayed_start_cancel() family of
routines now accept a parameter of type nano_thread_id_t instead of
'void *'.
The complete list of affected nanokernel routines is:
fiber_delayed_start() fiber_delayed_start_cancel()
fiber_fiber_delayed_start() fiber_fiber_delayed_start_cancel()
task_fiber_delayed_start() task_fiber_delayed_start_cancel()
Change-Id: Ibd4658df3ef07e79a81b7643a8be9ea5ffe08ba0
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Adds C++ support to the build system.
Change-Id: Ice1e57a13598e7a48b0bf3298fc318f4ce012ee6
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Simplifies the nanokernel timer API so that the timeout parameter must be
specified when invoking nano_isr_timer_test(), nano_fiber_timer_test(),
nano_task_timer_test() and nano_timer_test().
This obsoletes the following APIs:
nano_fiber_timer_wait()
nano_task_timer_wait()
nano_timer_wait()
Note that even the though the new API requires that the timeout parameter
be specified, there are currentl only two acceptable values:
TICKS_NONE and TICKS_UNLIMITED
Theoretically, the current implementation would allow one to supply a
finite positive value for the timeout and the system would wait up to
that many ticks for the timer to expire. However, it is thought that
that unnecessarily complicates the nanokernel timer model and so it is
left as an unsupported option. Should that change, then that feature
could be enabled by updating the documentation.
Change-Id: I8835c5342ab5025d6f70fdfbed54a50add7568d7
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Changes the nanokernel stack API so that the timeout parameter must be
specified when invoking nano_isr_stack_pop(), nano_fiber_stack_pop(),
nano_task_stack_pop() and nano_stack_pop().
This obsoletes the following APIs:
nano_fiber_stack_pop_wait()
nano_task_stack_pop_wait()
nano_stack_pop_wait()
Note that even though the new API requires that the timeout parameter
be specified, there are currently only two acceptable values:
TICKS_NONE and TICKS_UNLIMITED
This nanokernel option does not support CONFIG_NANO_TIMEOUTS.
Change-Id: Ic7f16ee30c3534115ceffa19ef8591ecc5a79080
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Changes the nanokernel LIFO API so that the timeout parameter must be
specified when invoking nano_isr_lifo_get(), nano_fiber_lifo_get(),
nano_task_lifo_get() and nano_lifo_get().
This obsoletes the following APIs:
nano_fiber_lifo_get_wait()
nano_fiber_lifo_get_wait_timeout()
nano_task_lifo_get_wait()
nano_task_lifo_get_wait_timeout()
nano_lifo_get_wait()
nano_lifo_get_wait_timeout()
Change-Id: Ie9f93e46da42ea33c32544c02ab1d70b893cc198
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Changes the nanokernel semaphore API so that the timeout parameter must be
specified when invoking nano_isr_sem_take(), nano_fiber_sem_take(),
nano_task_sem_take() and nano_sem_take().
This obsoletes the following APIs:
nano_fiber_sem_take_wait()
nano_fiber_sem_take_wait_timeout()
nano_task_sem_take_wait()
nano_task_sem_take_wait_timeout()
nano_sem_take_wait()
nano_sem_take_wait_timeout()
Change-Id: If7a4bce1bd8ec8d6410d04f3c16ff1922ff0910e
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Changes the nanokernel FIFO API so that the timeout parameter must be
specified when invoking nano_isr_fifo_get(), nano_fiber_fifo_get(),
nano_task_fifo_get() and nano_fifo_get().
This obsoletes the following APIs:
nano_fiber_fifo_get_wait()
nano_fiber_fifo_get_wait_timeout()
nano_task_fifo_get_wait()
nano_task_fifo_get_wait_timeout()
nano_fifo_get_wait()
nano_fifo_get_wait_timeout()
Change-Id: Icbd2909292f1ced0bad8a70a075478536a141ef2
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This is part of the convenience wrapper for timers as well as
nano_timer_init(), nano_timer_start(), etc...
Change-Id: I256e16682e5520eac2b590afcaf00df8b6e8ffd6
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Removes the following deprecated routines:
nano_cycle_get_32()
task_cycle_get_32()
fiber_cycle_get_32()
isr_cycle_get_32()
Those routines have all been replaced by sys_cycle_get_32().
Change-Id: I8709952633bb87c8963e88caffe1036fb9add527
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Renames _sys_clock_cycle_get() (provided by the timer driver)
to sys_cycle_get_32(). It is the preferred method to read the
hardware clock.
Change-Id: Ifea5213d8c04a8bf7b9114b048c5db0ccee61549
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This routine allows the background task to sleep for a specified
number of ticks.
Change-Id: I2533005e3d9a564c2ca0de8333e224743cefb658
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Improves documentation consistency by using "N/A" instead of "None"
when the routine does not return a value.
Change-Id: I429a159b3037742cbc431db0cb4828ab9d6d35c3
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Adds the following generic stack routines:
nano_stack_push()
nano_stack_stack_pop()
nano_stack_pop_wait()
Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.
Change-Id: I6e7bb2ca69bb2e3d5ed955654390746e76e4ab92
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Adds the following generic semaphore routines:
nano_sem_take()
nano_sem_take_wait()
Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.
Change-Id: I09d715d07263eb0ee526231120ba65d1e3feebce
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Adds the following generic lifo routines:
nano_lifo_put()
nano_lifo_get()
nano_lifo_get_wait()
nano_lifo_get_wait_timeout()
Those routines are convenience wrappers for invoking the task, fiber and
ISR (if applicable) specific implementations.
Change-Id: I5252e4643fe4772f1309b26c1b3e4319f5035956
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Adds the following generic fifo routine:
nano_fifo_get_wait_timeout()
That routine is a convenience wrapper for invoking the task or fiber
specific implementation.
Change-Id: I9bd709ea416db834e2a0c5de81257c363e7db066
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Add a list for each kind of nanokernel object. And link the object
to the list on the initialization function.
Change-Id: I7a51902a8d1b306ec50d9486e55af286127fcb1a
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
Change all the Intel and Wind River code license from BSD-3 to Apache 2.
Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Provides a way for a fiber or task to busy wait for a specified
period of time. This is useful in situations where a delay needs
to be performed without switching execution to another context,
such as:
1) It would take longer to switch to another context and then switch
back again than to simply busy wait.
2) A delay is required by the kernel's main task (i.e. the nanokernel's
background task or the microkernel's idle task). This task is not
allowed to voluntarily relinquish the CPU because this would leave
the kernel with nothing to execute in its place.
Change-Id: Icbe28613014f659e9528893ae58f7b8008c18a61
Original-work-by: Jeff Blais <jeff.blais@windriver.com>
Further-adapted-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
should be nanokernel_semaphore instead of nanokernel_semaphores
Change-Id: Iada05a2367eaf2a754c3678893147b11c7cfade7
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Doxegenize and cleanup headers for nanokernel
- fibers
- context
- timers
- stacks
Also minor cleanup of x86/arch.h
Change-Id: Ib65568d4ec034b69e8a6214ba4b52a7f719300bb
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Hopefully, this is the very last time a nanokernel object will have been
referred to by the 'channel' terminology.
Change-Id: Ied6243220803492af174571bfed328da007f2c5d
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
