Gamepad support for GRUB

• Development is done on https://twitch.tv/tsoding
• Archive of the streams: https://www.twitch.tv/collections/qhijEFrmqRUFvA

Supported Gamepads

• Logitech Rumble Gamepad F510 in DirectInput mode

Quick Start

$ git clone --recursive [email protected]:tsoding/grub-gamepad.git
$ nix-shell     # On NixOS

$ cd grub/
$ ./bootstrap
$ ./configure
$ make -j5

$ cd ..
$ make -B
$ qemu-system-i386 -cdrom test.iso

Connecting Gamepad via USB

VirtualBox

• Create Virtual Machine with 256MB of RAM and no HDD
• Attach the test.iso as Live CD
• Connect a Gamepad as an OHCI device.
• Start the machine to load into GRUB

grub> nativedisk pata
grub> nativedisk ohci
grub> insmod usb_gamepad
grub> terminal_input usb_gamepad

QEMU

$ lsusb
$ sudo qemu-system-i386 -usb -device usb-host,hostbus=<gamepad-bus>,hostaddr=<gamepad-addr> -cdrom test.iso # Alternatively, you can reference your device by its ids -device usb-host,vendorid=<gamepad-vendorid>,productid=<gamepad-productid> 
grub> nativedisk pata
grub> nativedisk uhci
grub> insmod usb_gamepad
grub> terminal_input usb_gamepad

Architecture

Adding New Module

TBD

Registering New Terminal Input

TBD

Attaching to a USB device

TBD

References

• https://steamcommunity.com/groups/steamuniverse/discussions/0/558751660797029626/
• https://github.com/rafaelffilho/RafaOS
• https://wiki.osdev.org/GRUB
• The Official GRUB repo: git://git.savannah.gnu.org/grub.git
• https://qemu.weilnetz.de/doc/qemu-doc.html#usb_005fdevices
• https://lists.gnu.org/archive/html/help-grub/2015-01/msg00011.html
• https://atariwiki.org/wiki/Wiki.jsp?page=How%2Bto%2Bwrite%2Ba%2BUSB%2BDriver
• https://github.com/krislig/rumblepad2py/blob/master/pad.py

Support

You can support my work via

• Twitch channel: https://www.twitch.tv/subs/tsoding
• Patreon: https://www.patreon.com/tsoding