Most if not all drivers use an internal function
spi_context_configured() to bypass reconfiguring the SPI peripheral
when nothing has changed. That function determines change based on
comparing the struct spi_config pointer that was last used. This does
not work if a user changes fields within the pointed-to structure.
Document that pointer comparison may be used to detect changes.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The x86 paging code has been rewritten to support another paging mode
and non-identity virtual mappings.
- Paging code now uses an array of paging level characteristics and
walks tables using for loops. This is opposed to having different
functions for every paging level and lots of #ifdefs. The code is
now more concise and adding new paging modes should be trivial.
- We now support 32-bit, PAE, and IA-32e page tables.
- The page tables created by gen_mmu.py are now installed at early
boot. There are no longer separate "flat" page tables. These tables
are mutable at any time.
- The x86_mmu code now has a private header. Many definitions that did
not need to be in public scope have been moved out of mmustructs.h
and either placed in the C file or in the private header.
- Improvements to dumping page table information, with the physical
mapping and flags all shown
- arch_mem_map() implemented
- x86 userspace/memory domain code ported to use the new
infrastructure.
- add logic for physical -> virtual instruction pointer transition,
including cleaning up identity mappings after this takes place.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Private macros/function for converting a virtual address
to a physical address. Only works for a specific range
of virtual addresses (the permanent SRAM mappings).
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Add encode utility mocre for 16 and 32 bits UUIDs that can be
used to in combination with BT_DATA_BYTES to include UUIDs
in advertising data.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Add defines for UUID values so that they can be used without
declaring a full bt_uuid struct.
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This is an extension to the existing FOR_EACH family of macros that
has a couple of twists that make it more useful in certain contexts,
as explained in the docstring.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
-Wimplicit-fallthrough=2 requires a fallthrough comment or a compiler
to tells gcc that this happens intentionally.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This adds the necessary bits in arch code, and Python scripts
to enable coredump support for ARM Cortex-M.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This adds a very primitive coredump mechanism under subsys/debug
where during fatal error, register and memory content can be
dumped to coredump backend. One such backend utilizing log
module for output is included. Once the coredump log is converted
to a binary file, it can be used with the ELF output file as
inputs to an overly simplified implementation of a GDB server.
This GDB server can be attached via the target remote command of
GDB and will be serving register and memory content. This allows
using GDB to examine stack and memory where the fatal error
occurred.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Many developers will be unfamiliar with UM10204 so document the rates
that are associated with the standard, fast, etc. speed names.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Use CONFIG_TRACING_ISR to exclude tracing ISRs just like other
architectures.
Also, z_sys_trace_isr_exit was not defined (It was renamed some time ago
and this was forgotten...)
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Added additonal checks in net_ipv6_input to ensure that multicasts
are only passed to the upper layer if the originating interface
actually joined the destination multicast group.
Signed-off-by: Philip Serbin <philip.serbin@lemonbeat.com>
Elevate connections always to security mode 1 level 4 when
Secure Connections Only Mode has been enabled in the Security Manager.
Elevate connections always to security mode 1 level 3 when
Legacy pairing with OOB only has been enabled in the Security Manager.
Fixes: #27338
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
The indentation went wrong when the integer types was changed
from the type "u8_t" to type "uint8_t". This changed the length
of the type and caused the code to look bad in places.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
These macros are used to validate that regions aren't
programmed that allow both writes and execution.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Some systems may need to associate arch-specific data to
a memory domain. Add a Kconfig and `arch` field for this,
and a new arch API to initialize it.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Wrap the entire definition around CONFIG_MEMORY_PROTECTION.
Add incomplete declaration for IS_ENABLED() purposes.
Some arch code uses struct k_mem_partition internally for
MPU management, even if userspace isn't enabled.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
ifdef the entire struct k_mem_domain around CONFIG_USERSPACE,
this is specifically and only a userspace feature.
Add an incomplete definition for purposes of allowing the APIs
to be used with IS_ENABLED().
Prevents accidental useless instatiation of k_mem_domain structs.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This now has its own header instead of kernel.h. The code is
unchanged other than a forward declaration of k_tid_t.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
So far SMP shell transport was initialized in APPLICATION run level, but
shell over UART was initialized in POST_KERNEL. This could end up in
situation when received frames were scheduled for further processing in
SMP layer, when it was not initialized yet.
Export smp_shell_init() function declaration and call it before shell is
initialized with all its receive data handlers. This prevents situation
when data is scheduled for processing in SMP layer, when that one is not
ready yet.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
net: route: Add prefix-based ipv6 multicast forwarding
This adds/reenables the feature of multicast routing/forwarding.
The forwarding decision is based on the added multicast routes
and the new network interface flag:
NET_IF_FORWARD_MULTICASTS.
Signed-off-by: Jan Georgi <jan.georgi@lemonbeat.com>
Added a #define for the maximum attribute length defined
by the core spec. Usefull for GATT servers and clients that
deals with long values.
Signed-off-by: Emil Gydesen <emil_gydesen@bose.com>
This patch implements optional authentication phase, which is done
between link establishment and network phases. It is part of LCP option
negotiation to decide whether authentication is needed and which
protocol will be used. For now we add only PAP support and try to
negotiate it when some other protocol (e.g. CHAP or EAP) is proposed
earlier. For simplicity reason we only add one way authentication
support, which means that we try to authenticate to the other peer, but
do not require authentication from it.
This is an important step to make PPP work with cellular network modems,
because most of them require to provide username and password within PPP
authentication phase. Those credentials are used by modem to login to
cellular network. In most cases however it is enough to provide dummy
values, because they are not verified. For this reason and simplicity of
this patch we hardcode PAP Peer-ID and Password now.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Add enums of PAP, CHAP and EAP authentication protocols. Also add their
string representations, so they will nicely show up in logs during
debugging.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Shell will display a warning message if there was a request to print
a message on the not initialized shell backend.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordisemi.no>
Disable shell print functions if the shell is not initialized.
Update tests accordingly.
Fixes#27161
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordisemi.no>
Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
The header was missing the language linkage wrapper that allows the
driver-specific function to be located from C++.
Also it helps the poor user to be informed that the function is only
available when a special Kconfig option is set.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Some flash drivers are capable of issuing a JESD216 READ_SFDP command
to read serial flash discoverable parameters. Allow applications and
utilities access to API that reads the JEDEC ID from those devices.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Some flash drivers are capable of issuing a JESD216 READ_SFDP command
to read serial flash discoverable parameters. Allow applications and
utilities access to that capability where it's supported.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Add function pointer to vtable and use that directly instead of
routing via ioctl() call. This is done as we are trying to get
rid of ioctl() calls in the system.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Do not route close() calls via ioctl() as that is error prone
and quite pointless. Instead create a callback for close() in
fdtable and use it directly.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The on-off manager infrastructure is designed to robust asynchronous
transition between binary states where multiple clients may be
initiating a transition from any context. The actual transition is
performed using a manager that tracks the current state and pending
operations. Requests are initiated by passing a reference to an
onoff_client object that holds client state including the notification
mechanism.
This API may be used in subsystems where the transitions for a
particular driver are always synchronous and isr-ok, e.g. setting a
SoC-controlled GPIO. In this situation the full on-off manager
infrastructure is wasteful. All we need is a record of the service
state: off, active count, or error.
Add a data structure and an API that can be used to replace the onoff
manager functionality in a situation where all transitions are isr-ok
and synchronous while retaining compatible behavior from the client
perspective.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
There is nothing wrong with instance numbers and they are
recommended for use whenever possible, but this is an API
design problem because it's not always possible to get nodes
by instance number; in some cases, drivers need to get node
identifiers from node labels, for example.
Change these APIs (which are not yet in any Zephyr release)
to take node IDs instead of instance IDs.
Fixes: #26984
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Add clock controller support for Nuvoton NPCX series. This CL includes:
1. Add clock controller device tree declarations.
2. Introduce clock-cells in yaml file clock tree to get module's source
clock and turn off/on the its clock
3. Clock controller driver implementation.
Signed-off-by: Mulin Chao <MLChao@nuvoton.com>
Core 5.2, Vol 4, Part E, section 5.3.1 clarifies that advertising set
handle is assigned by host when advertising set is created and this
happens only on LE Set Extended Advertising Parameters.
An advertising set handle is an arbitrary number within allowed range,
i.e. 0x00-0xEF and not 0..max_supported-1.
This patch adds option to enable advertising set handle mapping from
HCI range as defined by Core specification to zero-based handles used
by LL. If enabled, HCI handle will be remapped to LL handle for each
command, otherwise HCI handle will be used as an LL handle. The latter
effectively skips mapping logic and should be used with Zephyr host
which uses zero based indexes.
Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
This device isn't an actual hardware driver: it's a virtual EEPROM
that stores data in an instance-specific RAM buffer, with the data
exposed on an I2C bus as a I2C follower (slave) device that can be
controlled by another device acting as a leader (master) on that same
bus.
As such it's a reasonable example of how to write an I2C follower
driver, but it's not clear that it has a real use in applications. A
Zephyr application that needs to emulate an EEPROM in a real-world
system would be unlikely to provide its data from a RAM buffer.
The sole in-tree reference is in the i2c_slave_api test, so move the
driver implementation into that test.
The Kconfig and hierarchy are being left in place until it is more
clear how this functionality should be selectable within Zephyr. The
I2C_SLAVE symbol has been converted from menuconfig to config to
eliminate a Kconfig style diagnostic.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Open Supervised Device Protocol (OSDP) describes the communication
protocol for interfacing one or more Peripheral Devices (PD) to a
Control Panel (CP). The PDs are slave devices that waits for commands
from a CP. The communication happens over a RS485 multi-drop connection
with specification for a secure channel communication.
This patch adds initial support for OSDP in PD mode without secure
channel.
Signed-off-by: Siddharth Chandrasekaran <siddharth@embedjournal.com>
* zephyr_linker_sources states that RODATA and RWDATA
included will be wrapped in an outer section, so
add these sections for the posix arch too.
Signed-off-by: Pete Johanson <peter@peterjohanson.com>
