The uLUt and libshvc declare headers intended for make export
by EXPORTED_INCLUDES mechanism implemented during 2026
Micowindows GSoC. The shv-libs4c has been updated as well
to support newer pyshv versions and that way firmware updates
when shv-nxboot-updater is used through pyshv based shvflasher.py
and related GUI.
For pyshv see https://github.com/silicon-heaven/pyshv
New commits from shv-libs4c project
https://github.com/silicon-heaven/shv-libs4c
- shv_com_common: shv_unpack_discard and shv_unpack_skip
required to skip additional parameters and query requests
introduced introduced by newer silicon-heaven protocol
and pyshv. Incorrect skipping was a bug even against
previous protocol version but did not present itself because
older pyshv did not send additional requests which need
to be ignored.
- shv_file_node: small, but crucial unpack change
Ignore any other messages than PARAM in file node's write unpack
function. Other different states should be handled, too.
- shv_file_node: fix the CRC unpack method too
Any other messages than PARAM are ignored.
- shv_com: add a method to close a connection only
- shv_dotdevice_node.c: close the conn with the other side when resetted
- shv_com.h: use array designators for error strings
- libshvtree: move shv_con_errno_strs to the C file to not waste space
by copies
- shvtree/shv_clayer_posix: provide alternative socketpair notification
support
This allows to use shv-libs4c and related pysimCoder support
on RTEMS system which does not provide functional pipe
directive/system call but BSD networking supported local/UNIX
socket pair is fully supported.
Signed-off-by: Pavel Pisa <ppisa@pikron.com>
This commit marks the end of my GSoC 2025 project in the NuttX section.
All changes:
- Silicon Heaven protocol (SHV) implementation:
The library is cloned from github.com/silicon-heaven/shv-libs4c
and compiled here. The library has out-of-the-box support
for NuttX and possibly all posix systems.
The library is compiled with CONFIG_SHV_LIBS4C_PLATFORM define
set to "nuttx". The library's dependancy is Pavel Pisa's ULUT
and originates from Michal Lenc's GSoC.
- examples/shv-nxboot-updater:
An example which constructs a SHV tree with which you can perform
firmware updates using a SHV "file node". The file node wraps
around NXBoot's update partition.
The application also allows for NXBoot confirmation of the images.
This application is to be meant used as a "background service",
started before any apps, possibly using rcS. The tree is allocated
as GAVL (see below).
- examples/shv-test:
An example which constructs a SHV tree and gives the user
the ability to choose which type of construction should be used,
either:
- GAVL: dynamic SHV tree allocation encapsulated within
an AVL tree.
- GSA: dynamic SHV tree allocation encapsulated within
a continuous array with binary search
- GSA_STATIC: SHV tree is defined as static const, this means
all the data structures are placed in .rodata.
Extremely beneficial for embedded systems,
as .rodata is located in flash and embedded
systems usually have more flash than sram,
thus reducing sram usage. The downside is that
the definitions are rather tedious, but can
be automated in case of some code generation
(like in pysimCoder).
All of it is places in a continuous array with
binary search.
Signed-off-by: Stepan Pressl <pressl.stepan@gmail.com>
