gpioset.py requests lines without setting their output value, and so
sets them all inactive, and subsequently sets them to their requested
value. This can result in glitches on lines which were active and
are set active.
As this is example code, it is also important to demonstrate that the
output value can be set by the request itself.
Request the lines with the correct output values set in the request
itself.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We're currently unintentionally exporting a bunch of symbols that should
remain local to sub-modules. Use __all__ where appropriate so that we
don't re-export standard library functions such as select() etc. in the
gpiod module.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The docs don't mention it but currently passing None as the timeout to
one of the event wait methods works like passing 0 to select() - the wait
method returns immediately. Change it to a more standard behavior - None
makes the method block indefinitely until an event becomes available for
reading.
This is a slight change in the behavior but let's hope nobody complains
as libgpiod v2 is still pretty recent and its adoption is (hopegully)
not wide-spread yet.
Reported-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Suggested-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Kent Gibson <warthog618@gmail.com>
The manifest is not being bundled with the distribution tarball. Add it
to EXTRA_DIST.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We want to ship the source code for C extensions used by the test suite
but not install the built shared objects or put them into the bdist.
Extend the build_ext command to delete the tests from the build directory
right after the extensions have been built and - possibly - installed
into the source tree (if --inplace is set).
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This reverts commit addf968c73.
We're moving towards being compatible with PEP 517 for building and
currently the following error happens when running setup.py build_py:
running build_py
error: Error: setup script specifies an absolute path:
<snip>/libgpiod/bindings/python/./gpiod/ext/chip.c
setup() arguments must *always* be /-separated paths relative to the
setup.py directory, *never* absolute paths.
As the Makefile build should only be used for development purposes, I
think we can safely drop support for out-of-tree build. Python bindings
have now been spun out into their own tarball and are available to
install from pip.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We already exclude 'tests' but 'tests.*' must be excluded as well if we
don't want to install the gpiosim and procname submodules.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The name of the project has changed so the egg-info directory is no
longer ignored. Update .gitignore but make the entry more general.
Fixes: d5a454cda5 ("bindings: python: change the project name to libgpiod")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Update the version of python bindings to v2.0.1. I treat it as a bug-fix
release as the changes only apply to packaging and building (in
preparation for making the package available on pypi) and there are no
functional changes in the bindings.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
__main__.py and __init__.py are omitted with the default source discovery
so add an explicit recursive include for tests in order to package them.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add a long description that will be displayed on the main page once we
make the project available on pypi.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We want to package the .c sources for test-specific extensions so add
them to the manifest.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We currently "include" the gpiod package in find_packages() which does
nothing as it would be discovered anyway. We want to package the test
sources but exclude it from the binary wheel so use the "exclude"
argument.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The name 'gpiod' is already taken on pypi. Switch to using 'libgpiod'
as the name of the project. Keep 'gpiod' as the package name which
maintains code compatibility.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
In order to allow building sdist and wheel packages for python bindings
with python3-build, add a proper MANIFEST.in file.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
It seems like every release there's some new problem with parsing the
version strings in tests. Let's reduce the strictness of the patterns
to avoid future test failures and accept the following version schemes:
X.Y
X.Y.Z
X.Y-devel
X.Y-rcZ
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The square bracket is in the wrong place which makes the regex not match
version strings of the form: x.y.z. Fix the pattern in core and bindings
tests.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add a new Python code examples - gpionotify.py - which is a simplified
reimplementation of the gpionotify tool.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Two-digit versions are not correctly parsed as the last "segment" is not
optional as it should.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
GPIOD_VERSION_STRING environment variable is no longer used by setup.py.
It's been replaced by reading the version from the variable defined in
version.py.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
One of the test cases doesn't release the request object leading to the
following warning in the kernel log:
REMOVING GPIOCHIP WITH GPIOS STILL REQUESTED
Fix it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The GPIOD_WITH_TESTS environment variable is not used by setup.py install
command. Drop it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
As per automake docs:
The DESTDIR variable can be used to perform a staged installation. The
package should be configured as if it was going to be installed in its
final location (e.g., --prefix /usr), but when running make install, the
DESTDIR should be set to the absolute name of a directory into which the
installation will be diverted. From this directory it is easy to review
which files are being installed where, and finally copy them to their
final location by some means.
Prefix $(prefix) with $(DESTDIR) when calling setup.py.
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
Using the __FILE__ macro contaminates the build artifacts with global
build host file system paths. Don't use it.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Add a new optional argument to Chip.request_lines() called output_values.
It accepts a dictionary of mappings between line names or offsets to the
output values the requested lines should be set to at request-time.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
We have two functions in the C API that allow users to retrieve a list
of offsets from objects: gpiod_line_request_get_offsets() and
gpiod_line_config_get_offsets(). Even though they serve pretty much the
same purpose, they have different signatures and one of them also
requires the user to free the memory allocated within the libgpiod
library with a non-libgpiod free() function.
Unify them: make them take the array in which to store offsets and the
size of this array. Make them return the number of offsets actually
stored in the array and make them impossible to fail. Change their names
to be more descriptive and in the case of line_config: add a new function
that allows users to get the number of configured offsets.
Update the entire tree to use the new interfaces.
For rust bindings: also unify the line config interface to return a map
of line settings like C++ bindings do instead of having a function to
get settings by offset. A map returned from a single call is easier to
iterate over with a for loop than using an integer and calling the
previous line_settings() method.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Makefile.am delegates the build of the python extension to its
setup.py file, which references the extension .c files relative to the
source dir. This makes it impossible to build in a directory that is
different from the source directory (for example, for PC and ARM but
from the same source).
* Invoke setup.py from $(srcdir)
* Modify setup.py to pick up .c files relative from setup.py's own
directory.
Signed-off-by: Joerg Faschingbauer <jf@faschingbauer.co.at>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Instead of telling the user what type this function returns (they can
check it by looking at the prototype), tell them what the return value
actually represents.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
When we run the test suite by calling the __main__ function of the module,
the name of the process as visible in the system becomes "python". Let's
set it to "python-gpiod" before running the tests. This way gpiosim will
name its configfs attributes appropriately.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Currently in order to disable test the variable needs to be explicitly
set to GPIOD_WITH_TESTS= in the environment or setup.py will crash.
Assume tests should not be built if the variable is not set at all.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Python bindings now have their own setup.py script and can be built
separately from the rest of the code-base. Let's decouple the python
package version from libgpiod API (but let's keep a module attribute
containing the API version) by introducing a version.py submodule that
can be executed by the setup.py script. This way we have a single
canonical place defining the version number.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
The enum itself should just define direction settings, it's the functions
that use it that should refer to hogging.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
While we use it for edge event timestamps exclusively at the moment,
the actual enum names shouldn't limit its application and simply just
refer to existing clock types known by the GPIO uAPI. The relevant
functions are still called set/get_event_clock() as it's in line with
their functionality.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
The read_edge_event() family of functions should actually be called
read_edge_events() as they universally allow to read more than one
event. We're converting wait_edge_event() too for consistency.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Use enum types explicitly across the entire C API. Modern compilers can
catch some bugs with enums and it also helps IDEs and general readability.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
[Viresh: make rust bindings work with negative enum values]
Co-authored-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
We currently require the third-party packaging module to be installed in
order to run tests. Let's instead use the version parser that's already
available in setuptools.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is the result of a squash of all the commits created during
the development of libgpiod v2. This is done to preserve bisectability
of the git tree. It contains significant re-writes of the core C library
as well as C++ and python bindings. The tools have been adjusted to work
with the new API but have not undergone significant changes yet.
This commit contains the bulk of the work on libgpiod v2 but the
development continues with more changes planned.
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
[Ben: fix format specifier for uint64_t]
Signed-off-by: Ben Hutchings <ben.hutchings@mind.be>
[Viresh: Fix ioctl number for gpiod_line_request_reconfigure_lines()]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[Kent: bug fixes, improvements, better pointer contracts, type strictness]
Signed-off-by: Kent Gibson <warthog618@gmail.com>
In v2 API all getters will be called using the following pattern:
gpiod_<object>_get_<what>
Apply this to already existing getters for gpiod_chip.
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This removes any trace of line updating from the API (C, C++ and Python).
The line objects will soon disappear entirely so in order to make the
gradual transition to the new data model easier, remove
gpiod_line_update().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This removes another two functions from the C API as well as their
bindings that don't make much sense (since the user should know if
they have requested the line or not).
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
The preferred approach in low-level system libraries is to make all
exposed data structures opaque and use reference counting for their
memory management. This changes the chip objects to only close their
underlying character device and release all resources once the reference
count goes down to 0. We remove the gpiod_chip_close() function and
replace it with gpiod_chip_ref() and gpiod_chip_unref().
Other objects in the API will either be removed or are not opaque yet
and will be reworked later.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Together with the removal of line objects, we'll entirely drop the
line bulk concept. In order to avoid having to update tests that will
soon be unneeded when introducing further changes, let's remove line
bulk test cases already.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
We're preparing to entirely remove the line objects from the API and
split their functionality between two new objects: line_info and
line_request. The lookup functions must be limited in the process.
This reworks all the find_line methods to: a) always assume that names
looked for are unique within a single chip (because while it's
technically possible for GPIO line names to be non-unique, it doesn't
make sense to look for two lines named the same) and b) return the
hardware offset within the chip instead of the line object.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
While not necessary to compile, the PyObject_HEAD macros look more
consistent with the rest of the code if they too have semicolons at the
end of the lines.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
LGPL-2.1 is a license meant for shared libraries. Because I didn't know
any better I used it for all files in the repository, including programs
linking against libgpiod. The standard approach for many similar projects
is to use LGPL for library code and GPL for programs (and also Makefiles
and other files containing code or configuration).
Relicense all programs, tests, makefiles and autotools files under
GPL-2.0 or later.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Kent Gibson <warthog618@gmail.com>
In order to make the licensing situation of libgpiod clear and enable
easy reusing of the code, let's make all the files in the repository
compliant with the REUSE v3.0 specification.
In order to achieve that:
- put all used licenses into a separate LICENSES/ directory
- add SPDX license identifiers to all files that were missing them with
regular text files being licensed under CC-BY-SA-4.0, while files
containing code and configuration are licensed under GPL-2.0-or-later
- replace custom copyright texts with SPDX-FileCopyrightText
- update the gpio.h kernel uAPI header with the upstream version where
the SDPX license identifier was fixed to use 'GPL-2.0-only' variant
instead of the deprecated 'GPL-2.0'
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Kent Gibson <warthog618@gmail.com>
