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Roland Reinl 0682974aa8 filogic: Add LED driver for GCA230718 
Add basic support for the LED driver for GCA230718.

 - I didn't find any documentation or driver for it, so the information below is purely based on my investigations
 - If there is already I driver for it, please tell me. Maybe I didn't search enough
 - I implemented a kernel module (leds-gca230718) to access the LEDs via DTS
 - The LED controller supports PWM for brightness control and ramp control for smooth blinking. This is not implemented in the driver
 - The LED controller supports toggling (on -> off -> on -> off) where the brightness of the LEDs can be set individually for each on cycle
 - Until now, only simple active/inactive control is implemented (like when the LEDs would have been connected via GPIO)
 - Controlling the LEDs requires three sequences sent to the chip. Each sequence consists of
   - A reset command (0x81 0xE4) written to register 0x00
   - A control command (for example 0x0C 0x02 0x01 0x00 0x00 0x00 0xFF 0x01 0x00 0x00 0x00 0xFF 0x87 written to register 0x03)
 - The reset command is always the same
 - In the control command
   - byte 0 is always the same
   - byte 1 (0x02 in the example above) must be changed in every sequence: 0x02 -> 0x01 -> 0x03)
   - byte 2 is set to 0x01 which disables toggling. 0x02 would be LED toggling without ramp control, 0x03 would be toggling with ramp control
   - byte 3 to 6 define the brightness values for the LEDs (R,G,B,W) for the first on cycle when toggling
   - byte 7 defines the toggling frequency (if toggling enabled)
   - byte 8 to 11 define the brightness values for the LEDs (R,G,B,W) for the second on cycle when toggling
   - byte 12 is constant 0x87

Signed-off-by: Roland Reinl <reinlroland+github@gmail.com>
2024-03-31 19:01:19 +02:00
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include kernel: bump 5.15 to 5.15.153 2024-03-31 18:34:04 +02:00
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tools tools: b43-tools: fix compilation with GCC14 2024-03-30 10:42:47 +01:00
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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!

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Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

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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 python3.7+ 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.

  • LuCI Web Interface: Modern and modular interface to control the device via a web browser.

  • OpenWrt Packages: Community repository of ported packages.

  • OpenWrt Routing: Packages specifically focused on (mesh) routing.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

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