Add some introductory text to these driver helpers which makes it more
clear how they are defined in terms of the generic APIs, which allows
removing some boilerplate from doxygen. This also gives us a chance to
call out the exceptional cases and add some more documentation to those.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Some updates to the reference page for the "core" APIs, and associated
follow-ups in the guides:
- centralize documentation of chosen zephyr nodes in a non-legacy
file, provide a reference to them from the intro page in the guide
- review doxygen docstrings and correct errors for generic APIs
- add introductory text to each section in the API reference
- add missing hardware-specific pages
Documentation for layers built on top of these is mostly left to future
commits, but I do have a smattering of fixes in the guides that I
noticed while I was doing this.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Several reviewers agreed that DT_HAS_NODE_STATUS_OKAY(...) was an
undesirable API for the following reasons:
- it's inconsistent with the rest of the DT_NODE_HAS_FOO names
- DT_NODE_HAS_FOO_BAR_BAZ(node) was agreed upon as a shorthand
for macros which are equivalent to
DT_NODE_HAS_FOO(node) && DT_NODE_HAS_BAR(node) &&
- DT_NODE_HAS_BAZ(node), and DT_HAS_NODE_STATUS_OKAY is an odd duck
- DT_NODE_HAS_STATUS(..., okay) was viewed as more readable anyway
- it is seen as a somewhat aesthetically challenged name
Replace all users with DT_NODE_HAS_STATUS(..., okay), which is
semantically equivalent.
This is mostly done with sed, but a few remaining cases were done by
hand, along with whitespace, docs, and comment changes. These special
cases include the Nordic SOC static assert files.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Add more HOWTO information for the two current devicetree-based device
instantiation styles, and a bit more information on how to create
devices that depend on others.
Point to this from the Kconfig tips page, since it is meant as a
replacement for existing Kconfig practice.
Update macros.bnf.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Rename DT_HAS_NODE to DT_HAS_NODE_STATUS_OKAY so the semantics are
clear. As going forward DT_HAS_NODE will report if a NODE exists
regardless of its status.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add a devicetree/zephyr.h header, which is meant to contain
definitions for /chosen properties specific to Zephyr.
Currently, this just deals with zephyr,entropy. We add a
DT_CHOSEN_ZEPHYR_ENTROPY_LABEL macro which expands to the label for the
node pointed to by zephyr,entropy.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Trivial cleanup: sort the devicetree/foo.h includes and the relevant
sections for them in the documentation.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
This is joint work with Kumar Gala (see signed-off-by).
Document the changes to the generated node macros in macros.bnf,
moving the old file to legacy-macros.bnf and putting it in its own
section.
The actual generated macros are now a low-level detail, so rewrite the
foregoing sections as examples in terms of the new <devicetree.h> APIs.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
