As we move to making the `label` property optional, we need to account
for widespread use of `dev->name` in contexts where the pointer is not
validated before it is dereferenced. Use an empty string instead of a
null pointer when no label is provided.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Provide a helper to extract the devicetree node_id for a CLOCKS
controller from a clocks phandle array. This can be used with
DEVICE_DT_GET() to directly reference the corresponding controller
device.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Co-authored-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
This include make possible to use the arm_arch_timer on
platform such as Cortex-A9 or Cortex-R7 which has support for
ARM Global Timer.
The global timer is a 64 bit incrementing counter, memory-mapped
in the private memory region.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
In some cases we cannot know the BDF up-front, so provide a way to
look it up based on the vendor and device ID.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
These have been redefined in various places - better to have them in a
single place that different users can use.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Add ESPI SAF features to the Microchip eSPI driver as
a separate file. ESPI SAF depends upon the core eSPI
driver adding the ability to attach the system SPI
flash to the EC eSPI endpoint instead of the host
eSPI controller.
Signed-off-by: Scott Worley <scott.worley@microchip.com>
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>
Provide the LoRaWAN stack with an optional callback to be
called whenever the battery level needs to be read.
In the case of callback not being provided, the LoRaWAN
stack will report 255 (battery level unavailable) as per
the LoRaWAN spec.
Signed-off-by: Kuba Sanak <contact@kuba.fyi>
Simplify pm subsystem removing PM_STATE_LOCK option. Constraints API is
small and is a key component of power subsystem.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
Add support for backup SRAM initialization found in multiple STM32
microcontrollers. Linker script facilities are also provided to make it
easy to define variables in the backup SRAM.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
When handling CoAP Confirmable requests, there is a common
Acknowledgement initialization procedure that repeats for each
response packet initialization. This patch adds a function that
simplifies Acknowledgement initialization procedure encapsulating
repeating code.
Signed-off-by: Hubert Miś <hubert.mis@nordicsemi.no>
Generated device and driver names have changed with commits [1] and [2],
but net offload drivers missed the conversion. Update net offload DT
device macros now.
[1] commit 8c1bef535b ("device: support generating defines from
devicetree nodes with no label")
[2] commit f91e9fba51 ("device: fix potential truncation of DT-derived
device names")
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Add device_is_ready check to clock APIs as we might now get the clock
device via DEVICE_DT_GET and thus may not have checked if the clock
controller device is ready.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Work items can be legally resubmitted from within their own handler.
Currently the p4wq detects this case by checking their thread field to
see if it's been set to NULL. But that's a race, because if the item
was NOT resubmitted then it no longer belongs to the queue and may
have been freed or reused or otherwise clobbered legally by user code.
Instead, steal a single bit in the thread struct for this purpose.
This patch adds a K_CALLBACK_STATE bit in user_options and documents
it in such a way (as being intended for "callback manager" utilities)
that it can't be used recursively or otherwise collide.
Fixes#32052
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
In binutils SORT is an alias for SORT_BY_NAME. Don't confuse people
by replacing explicit use of the actual directive with an alias for
that same directive.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The CONFIG_KERNEL_COHERENCE framework merged with a typo that left its
validation asserts disabled. But it was written before the "kernel
stacks" feature merged, and so missed the K_KERNEL_STACK_* macros,
which need to put their stacks into __stackmem and not merely
__noinit.
Turning the asserts on exposed the bug.
Fixes#32112
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Inline functions reference a __fallthrough macro that is toolchain
specific. Include the header that provides that macro.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The I2C slave API has been present since 1.12 but lacked documentation
on the behavior of its functions. Provide that, and revise existing
documentation to make clear the type and mode of the device passed to
each API call.
Documented behavior is derived primarily from the LPC11U6X
implementation, as the STM32 implementation generally ignores return
values.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Move the definition to a within a doxygengroup, so its documentation
appears in the reference page.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This lets the linker tell us what kind of alignment is required
for both tdata and tbss data when copying them into stack.
If they are not aligned as expected by the toolchain, generated
code would be accessing incorrect location for thread variables.
Fixes#32015
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The linker script defines `z_mapped_size` as follows:
```
z_mapped_size = z_mapped_end - z_mapped_start;
```
This is done with the belief that precomputed values at link time will
make the code smaller and faster.
On Aarch64, symbol values are relocated and loaded relative to the PC
as those are normally meant to be memory addresses.
Now if you have e.g. `CONFIG_SRAM_BASE_ADDRESS=0x2000000000` then
`z_mapped_size` might still have a reasonable value, say 0x59334.
But, when interpreted as an address, that's very very far from the PC
whose value is in the neighborhood of 0x2000000000. That overflows the
4GB relocation range:
```
kernel/libkernel.a(mmu.c.obj): in function `z_mem_manage_init':
kernel/mmu.c:527:(.text.z_mem_manage_init+0x1c):
relocation truncated to fit: R_AARCH64_ADR_PREL_PG_HI21
```
The solution is to define `Z_KERNEL_VIRT_SIZE` in terms of
`z_mapped_end - z_mapped_start` at the source code level. Given this
is used within loops that already start with `z_mapped_start` anyway,
the compiler is smart enough to combine the two occurrences and
dispense with a size counter, making the code effectively
slightly better for all while avoiding the Aarch64 relocation
overflow:
```
text data bss dec hex filename
1216 8 294936 296160 484e0 mmu.c.obj.arm64.before
1212 8 294936 296156 484dc mmu.c.obj.arm64.after
1110 8 9244 10362 287a mmu.c.obj.x86-64.before
1106 8 9244 10358 2876 mmu.c.obj.x86-64.after
```
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
XCC Clang doesn't emit load address when a section
is empty, resulting in __tdata_start not being
defined. So put a #ifdef guard for the thread local
storage linker script to avoid this issue.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Our minimal C library makes an alias of UINT*_C() to
be __UINT*_C() and INT*_C() to __INT*_C(). However,
in XCC, these are not defined by default, so define
them ourselves.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The fs_dir_t_init() function has been added that should be used
for initialization of fs_dir_t structures before passing them
to fs_open and other functions.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Reduces some user confusion regarding whether it is related
to "Connection ID", "Channel ID", or "Company ID" for the
uninitiated.
Signed-off-by: Emil Hammarstrom <emil.hammarstrom@assaabloy.com>
Said warning comes when building with LOG_MODE_MINIMAL and
including logging/log.h. This commit adds ARG_UNUSED on
relevant variables.
Signed-off-by: Emil Lindqvist <emil@lindq.gr>
The compatible for the ARMv8 timer should have been arm,armv8-timer and
not arm,arm-timer. The dts binding file name was correct, just the
compatible was wrong. Rename dts, binding, and associated code to use
arm,armv8-timer.
Fixes#31946
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The call to arch_mem_coherent() inside spinlock.h
when spinlock validation and memory coherence enabled
is causing build error as spinlock.h does not include
kernel_arch_func.h directly. However, simply including
that file does not work either as this creates
the chicken-or-egg in the chain of include files.
In order to make spin validation work with kernel
coherence enabled, a separate function is created
to break the circular dependencies of include files.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
The use of UART_RX_DONE was incorrect/invalid (the event
does not exist). This corrects the reference to UART_RX_RDY.
Fixes#31207
Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
sys_heap_alloc() returns memory aligned to sizeof(void *).
sys_heap_aligned_alloc() may accept 0 for align which defaults
to sizeof(void *). Semantically we can consider 0 as "don't care".
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
The definition for realloc() says that it should return a pointer
to the allocated memory which is suitably aligned for any built-in
type.
Turn sys_heap_realloc() into a sys_heap_aligned_realloc() and use it
with __alignof__(z_max_align_t) to implement realloc() with proper
memory alignment for any platform.
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Introduce an additional single-bit flag to hold
the current length of the MPU Stack Guard size
(long or default) for the case when building
with MPU_STACK_GUARD and FPU_SHARING, in Cortex-M
platforms.
In addition, the commit adds some documentation
about the existing status flags in Arm's
thread arch.mode variable.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
RFC 7252 (CoAP) specifies value of the Version (Ver) field in the
protocol header to value 1. This patch defines value of the Version
field to make packet initialization easier. All samples and tests
are updated to use the new COAP_VERSION_1 field when initializing
a CoAP packet.
Signed-off-by: Hubert Miś <hubert.mis@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>
