On flash NVS was stored one entry after another including the metadata
of each entry. This has the disadvantage that when an incomplete write
is performed (e.g. due to power failure) the complete sector had to be
rewritten to get a completely functional system.
The present rewrite changed the storage in flash of the data. For each
sector the data is now written as follows: the data itself at the
beginning of the sector (one after the other), the metadata (id, length,
data offset in the sector, and a crc of the metadata) is written from
the end of the sector. The metadata is of fixed size (8 byte) and for
a sector that is completely occupied a metadata entry of all zeros is
used.
Writing data to flash always is done by:
1. Writing the data,
2. Writing the metadata.
If an incomplete write is done NVS will ignore this incomplete write.
At the same time the following improvements were done:
1. NVS now support 65536 sectors of each 65536 byte.
2. The sector size no longer requires to be a power of 2 (but it
still needs to be a multiple of the flash erase page size).
3. NVS now also keeps track of the free space available.
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
The nvs module has some disadvantages for larger block size. The data
header and slot are taking up to much space. A rewrite is proposed that
reduces the used storage space for systems with write block size > 4.
The data storage in flash is now one unit consisting of: data_length,
data_id, data and data_length again in a multiple of the write block
size. The data_length at the end is used to validate the correctness of
the flash write and also allows to travel backwards in the filesystem.
As a comparison, on a system with block size 8 byte, a 32 bit values
now fits 1 block including the metadata (length and id). This used to
be 3 blocks.
The data_length will occupy 1 byte if the data length is less than 128
byte, it will occupy 2 byte if the data length is 128 byte or more. The
data length is limited to 16383 byte.
Each write to flash is verified by a read back of the data.
The read performance is improved because reading is done backwards so
the latest items are found first.
When the filesystem is locked it can be unlocked by calling
reinit(), this will clear flash and setup everything for storage.
add sample documentation - README.rst
Update dtsi to include erase_block_size, use erase_block_size in sample
Update prj.conf to include CONFIG_MPU_ALLOW_FLASH_WRITE
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
This patch aligns documentation to changes in imagetool.py released
in mcuboot 1.2 (latest release).
Also adds note about workaround for possible timeout while erasing
image-slot on some devices (like nRF52840 SoC)
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Enabling internal processing thread allows implicit initialization
and processing log messages in case mutlithreading is enabled.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Documenting new logger features: waking up processing thread
and internal logger processing thread.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
When enabled, logger is creating own thread which processes buffered
logs. When no logs to process, thread sleeps for configurable period.
Thread can be waken up if number of buffered log messages exceeds
configured threshold. Logging sample aligned to use new feature.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Log API can be used before user can explicitly initialize the logger.
In order to ensure that logger core is ready to buffer log messages
it must be initialize as early as possible. Initialization does not
include initialization of default backend since driver may not be
ready and backend is needed only when log messages are processed.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Add loopback function. This function can be used to test
USB device drivers and device stack connected to linux host
and has the similar interface as "Gadget Zero" [1] of the Linux
kernel.
Use modprobe usbtest to load the module, see also [2] for the
description of the tests and for Vendor and Product ID of the
"Gadget Zero". The userspace tool testusb [3] is needed to start
the tests.
[1] linux/drivers/usb/gadget/function/f_loopback.c
[2] linux/drivers/usb/misc/usbtest.c
[3] linux/tools/usb/testusb.c
Signed-off-by: Johann Fischer <j.fischer@phytec.de>
When we enabled SEGGER support on the nRF51 series SoCs, this sample
started to fail due to small amount of memory avaiable on some nRF51
SoCs. This commit updates the min_ram property in order to exclude
failing boards from the build.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
When we enabled SEGGER support on the ST SoCs we now how some systems
with really small amounts of memory that the sample can't be built for.
Set a min_ram to exclude such systems.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
CDC ACM is not needed in webusb, communication is going through Bulk
endpoints. Endpoint numbers stay the same only Interface number
changed, so basically only this change is needed:
- .then(() => this.device_.claimInterface(2))
+ .then(() => this.device_.claimInterface(0))
this.device_.claimInterface({2,0}) apart from removing serial port
commands.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Console subsystem is intended to be a layer between console drivers
and console clients, like e.g. shell. This change factors out code
from shell which dealed with individial console drivers and moves it
to console subsystem, under the name console_register_line_input().
To accommodate for this change, older console subsys Kconfig symbol
is changed from CONFIG_CONSOLE_PULL to CONFIG_CONSOLE_SUBSYS
(CONFIG_CONSOLE is already used by console drivers). This signifies
that console subsystem is intended to deal with all of console
aspects in Zephyr (existing and new), not just provide some "new"
functionality on top of raw console drivers, like it initially
started.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
A HID application can no longer write to the default
interrupt IN endpoint because the addresses are assigned
dynamically. Add hid_int_ep_write() function and leave
it to the hid-core to call the usb_write() with the correct
endpoint address.
fixes: #8424
Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This is not used by Zephyr directly and comes from a test framework. We
do matching in the sample.yaml file now.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
The original implementation of CONFIG_THREAD_MONITOR would
try to leverage a thread's initial stack layout to provide
the entry function with arguments for any given thread.
This is problematic:
- Some arches do not have a initial stack layout suitable for
this
- Some arches never enabled this at all (riscv32, nios2)
- Some arches did not enable this properly
- Dropping to user mode would erase or provide incorrect
information.
Just spend a few extra bytes to store this stuff directly
in the k_thread struct and get rid of all the arch-specific
code for this.
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
With recent changes to open-amp we can now include and build it directly
as a zephyr library rather than doing a recursive make. We remove
ext/lib/ipc/open-amp.cmake as part of this change and introduce a
Kconfig option for open-amp.
Fixes: #7673
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Move open-amp to be in ext/lib/ipc/open-amp/open-amp. This allows us to
be Zephyr specific files and config like README (for import),
CMakeLists.txt file, Kconfig, etc in ext/lib/ipc/open-amp/ that don't
conflict with any files that might have the same name in
ext/lib/ipc/open-amp/open-amp.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
With recent changes to libmetal we can now include and build it directly
as a zephyr library rather than doing a recursive make. We remove
ext/hal/libmetal.cmake as part of this change and introduce a Kconfig
option for libmetal.
This is a partial fix for issue #7673.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This symbol does not exist. Not sure what was intended.
There's HAS_SEGER_RTT, but that symbol has no prompt, meaning .config
values have no effect on it. It is 'select'ed by the SoCs.
Remove the assignment, which is a no-op.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
This commit adds a sample application using OpenAMP for remote procedure
calls on the LPCXpresso54114. It is adapted from the RPMsg-Lite sample
application added in PR #5960, and uses the IPM driver to provide
interprocessor interrupts.
Signed-off-by: Kristian Klomsten Skordal <kristian.skordal@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add MCUX IPM sample application. It can be run on lpcxpresso54114
board at the moment.
We first build the slave core image out of the remote/ dir than the
primary core image is build which includes the slave core image.
Origin: Original
Signed-off-by: Stanislav Poboril <stanislav.poboril@nxp.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add a sample.yaml file for Nordic platforms (QEMU is not supported due
to the lack of flash partitions), both nRF51 and nRF52.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This adds the "old" (pre-windows8) way of doing microsoft-
specific USB descriptors, alongside the v2.0 way of doing
the same.
Signed-off-by: Iván Sánchez Ortega <ivan@sanchezortega.es>
This adds some vendor-specific microsoft USB descriptors, which
makes the win8/win10 enumeration process to report a "WINUSB"
capability, which in turn automatically binds a WinUSB.sys driver
to a specific set of interfaces. This, in theory, makes userspace
drivers easier to handle in win32/win64 platforms.
Signed-off-by: Iván Sánchez Ortega <ivan@sanchezortega.es>
Zephyr supports fatfs, nffs and fcb as storage layer. fatfs and nffs
are less suited for application in memory restricted IC's. fcb has a
smaller footprint but has a complex api.
The proposed module is a module with a even smaller footprint compared
to fcb and a simple interface for reading and writing entries. The
module provides wear levelling of flash. This allows the module to be
used not only to store configuration settings but to store device state
(e.g. state of a light switch over reboots) of a zephyr device.
Fixes buffer overflow by introducing maximum read length in nvs_read()
and nvs_read_hist().
Fixes nvs_write() not to reflash the same data. Allows the user to do
call nvs_write() for all defined entries without worries about flash
wear.
Fixes garbage collection error where wrong data could be copied.
Add nvs_delete() to allow deleting a stored entry. A deleted entry will
not be copied to a new flash sector
Include flash wear information in the README.md documentation
0/25 Update module after reviewers remarks, added documentation to
nvs.h, removed README.md by nvs.rst in doc/subsystems folder
04/26 Update module after reviewers remarks, updated nvs.rst, added more
documentation to samples/subsys/nvs/src/main.c, updated doxygen info
in nvs.h (hope this time it works).
04/26 Update subsystems.rst to include nvs.restart
04/27 Updated nvs.c and nvs.h to avoid a possible flash deletion loop
when the file system is full.
04/29 Updated nvs_write to detect and ignore deletes of non-existing
items
05/06 Update NVS module to return standard error codes, removed low
level API, added configuration options. NVS now uses the board dts to
determine the flash storage location (FLASH_AREA_STORAGE_OFFSET).
05/06 Update nvs.rst. Updated intendation and added intermediate
variables in nvs.c to make the code easier to read.
05/06 Update nvs.rst.
05/07 Update nvs.rst
05/08 Changed the API to a more standard file system API.
05/08 Removed cnt_max from nvs_read() as it is not used.
05/08 Removed #ifdef(CONFIG_NVS_LOG) from nvs_priv.h, now the module can
be build with debugging off.
05/09 Removed configuration options for SECTOR_SIZE, SECTOR_COUNT and
MAX_ELEM_SIZE. It is now easy to support multiple NVS filesystems on
one or multiple devices. Changed logging to support newlib systems.
Thanks to Olivier Martin for reporting and proposed changes.
Signed-off-by: Laczen JMS <laczenjms@gmail.com>
Header was missing after merging PR #6970
`Add support for File System multiple instances`
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Assign the appropriate disk name Kconfig option to the
usb mass storage sample test.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
This patch moves USB DFU class driver to subsys/usb/class.
For the first the USB DFU class driver depends on DFU image
manager and partition layout and is limited to use as an
application for the bootloader. The driver fetches the
information about the flash, erase block size, write block
size and partitions offset from the DT now. The driver has
two interfaces associated with the two partitions "SLOT-0"
and "SLOT-1". The "SLOT-0" can only be read.
In the following work the class driver can be extended so
that it can be used from the bootloader and update a flash
region directly from the bootloader.
Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This is a simple cosmetic change. Each field in the BOS (Binary
Object Store) descriptor has a comment, to understand it better.
Signed-off-by: Iván Sánchez Ortega <ivan@sanchezortega.es>
Rework samples using LED and GPIO to enforce use of "CONTROLLER"
as LED and PGIO postifx.
Change impact all samples that could be run by boards yet moved to
GPIO node generations, which is only STM32 for now
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
