The USB infrastructure currently uses the system work queue for
offloading transfers, CDC-ACM UART transmission/reception, and device
firmware activities. This causes problems when the system work queue
is also used to initiate some activities (such as UART) that normally
complete without requiring an external thread: in that case the USB
infrastructure is prevented from making progress because the system
work queue is blocked waiting for the USB infrastructure to provide
data.
Break the dependency by allowing the USB infrastructure to use a
dedicated work queue which doesn't depend on availability of the
system work queue.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
There are two problems with how zephyr/subsys/usb is being added to
the include path. Firstly it is using the zephyr_library_ API to
modify the zephyr library, when the zephyr_ API should have been used.
Secondly the code is located in the class directory even though it
affects the more general usb directory.
This patch fixes these issues. Using zephyr_library_ in this instance
works by accident when 'zephyr' is the current library but has not
guarantees of working in the future.
Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier. Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.
By default all files without license information are under the default
license of Zephyr, which is Apache version 2.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Add support for MS OS Descriptors. The patch structures already
existing code for webusb to the single place to be easy added to other
places.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This patch reworks composite device support. It allows the
functions to be modular and the user to combine its own
functions with the USB functions of the Zephyr OS.
Signed-off-by: Johann Fischer <j.fischer@phytec.de>
Document USB Vendor and Product IDs and their intended usage.
Set the Vendor and Product IDs and define the USB bcdDevice
Device Descriptor Device Release Number to be the binary
coded decimal representation of the Zephyr major and minor
kernel version number.
Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
Introducing CMake is an important step in a larger effort to make
Zephyr easy to use for application developers working on different
platforms with different development environment needs.
Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.
This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.
For users that just want to continue their work with minimal
disruption the following should suffice:
Install CMake 3.8.2+
Port any out-of-tree Makefiles to CMake.
Learn the absolute minimum about the new command line interface:
$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..
$ cd build
$ make
PR: zephyrproject-rtos#4692
docs: http://docs.zephyrproject.org/getting_started/getting_started.html
Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
Peter Bigot