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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-27 01:44:41 +03:00
mobile-nixos/modules/initrd-usb.nix
2019-09-21 22:44:44 -04:00

73 lines
2.0 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
with import ./initrd-order.nix;
let
cfg = config.mobile.boot.stage-1;
system_type = config.mobile.system.type;
in
{
# FIXME Generic USB gadget support to come.
options.mobile.boot.stage-1.usb = {
enable = mkOption {
type = types.bool;
default = true;
description = ''
Enables USB features.
For now, only Android-based devices are supported.
'';
};
features = mkOption {
type = types.listOf types.str;
default = [];
description = ''
`android_usb` features to enable.
'';
};
adbd = mkOption {
type = types.bool;
default = system_type == "android";
description = ''
Enables adbd on the device.
'';
};
};
config.mobile.boot.stage-1 = lib.mkIf cfg.usb.enable {
usb.features = []
++ optional cfg.networking.enable "rndis"
++ optional cfg.usb.adbd "adb"
;
# TODO: Only run, when we have the android usb driver
init = lib.mkOrder AFTER_DEVICE_INIT ''
# Setting up Android-specific USB.
(
SYS=/sys/class/android_usb/android0
if [ -e "$SYS" ]; then
mkdir /dev/usb-ffs/adb
mount -t functionfs adb /dev/usb-ffs/adb/
printf "%s" "0" > "$SYS/enable"
printf "%s" "18D1" > "$SYS/idVendor"
printf "%s" "D001" > "$SYS/idProduct"
printf "%s" "0" > "$SYS/bDeviceClass"
#printf "%s" "adb" > "$SYS/f_ffs/aliases"
#printf "%s" "${concatStringsSep "," cfg.usb.features}" > "$SYS/functions"
printf "%s" "rndis,adb" > "$SYS/functions"
printf "%s" "FIXME" > "$SYS/iManufacturer"
printf "%s" "FIXME" > "$SYS/iProduct"
printf "%s" "FIXME" > "$SYS/iSerial"
sleep 0.5
printf "%s" "1" > "$SYS/enable"
sleep 1
${optionalString cfg.usb.adbd "adbd &\n"}
fi
)
'';
extraUtils = with pkgs; []
++ optional cfg.usb.adbd { package = adbd; extraCommand = "cp -fpv ${glibc.out}/lib/libnss_files.so.* $out/lib"; }
;
};
}