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Christian Lamparter 2b0378cf9f gpio-button-hotplug: convert to gpio descriptor (gpiod_) API 
OpenWrt's special gpio-button-hotplug driver is still using
exclusively the legacy GPIO Subsystem gpio_ API.

While it still does work fine for most devices, upstream
linux is starting to convert platform support like that of
the APU2/3/4 to the new GPIOD LOOKUP tables that are not
supported by it.

Hence, this patch replaces the gpio_ calls present in
gpio-button-hotplug with gpiod_ equivalent wherever
it's possible. This allows the driver to use the
gpiod lookup tables and still have a fallback for
legacy platform data code that just sets button->gpio
set to the real button/switch GPIO.

As a bonus: the active_low logic is now being handled
by the linux's gpio subsystem too. Another issue that
was address is the of_handle leak in the dt parser
error path.

Tested with legacy platform data: x86_64: APU2, MX-100
Tested on OF: ATH79; MR18, APM821xx: Netgear WNDR4700,
	      RAMIPS: WL-330N3G
	      LANTIQ: AVM FritzBox 7360v1

Reported-by: Chris Blake <chrisrblake93@gmail.com>
Tested-by: Chris Blake <chrisrblake93@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
 		2021-08-26 21:00:26 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
LICENSES LICENSES: include all used licenses in LICENSES directory 2021-02-14 19:21:38 +01:00
config base-files: add option to make /var persistent 2021-08-22 18:07:51 +03:00
include prereq-build: require python3-distutils 2021-08-21 16:31:20 +02:00
package gpio-button-hotplug: convert to gpio descriptor (gpiod_) API 2021-08-26 21:00:26 +02:00
scripts base-files: rename 'sdcard' to 'legacy-sdcard' 2021-08-16 12:22:17 +01:00
target ath79: add support for onion omega 2021-08-26 15:07:18 +02:00
toolchain toolchain/gcc: switch to version 10 by default 2021-08-18 20:48:53 +03:00
tools firmware-utils: fix build on not Linux 2021-08-21 20:16:39 +01:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore .gitignore: ignore any .vscode* file 2021-07-02 09:50:12 -10:00
BSDmakefile build: use SPDX license tags 2021-02-05 14:54:47 +01:00
COPYING COPYING: add COPYING file to specify project licenses 2021-02-14 19:21:38 +01:00
Config.in build: use SPDX license tags 2021-02-05 14:54:47 +01:00
Makefile Revert "build: replace which with Bash command built-in" 2021-03-03 22:51:39 +01:00
README.md README: switch from freenode to oftc 2021-06-12 12:39:35 -10:00
feeds.conf.default feeds: management: remove dead and out of project feed 2021-05-01 00:37:15 +02:00
rules.mk build: add ninja build tool and make it available for cmake 2021-06-12 10:46:39 +02:00

README.md

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Development

To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.6+ rsync subversion unzip which

Quickstart

  1. Run ./scripts/feeds update -a to obtain all the latest package definitions defined in feeds.conf / feeds.conf.default

  2. Run ./scripts/feeds install -a to install symlinks for all obtained packages into package/feeds/

  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

Related Repositories

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0