forked from DGNum/liminix
56 lines
2 KiB
Nix
56 lines
2 KiB
Nix
{ config, pkgs, lib, ... }:
|
|
let
|
|
inherit (pkgs.liminix.services) oneshot;
|
|
svc = config.system.service;
|
|
in {
|
|
config = {
|
|
kernel.config = {
|
|
USB_NET_HUAWEI_CDC_NCM = "y";
|
|
USB_USBNET = "y";
|
|
USB_SERIAL = "y";
|
|
USB_SERIAL_OPTION = "y";
|
|
};
|
|
|
|
# https://www.0xf8.org/2017/01/flashing-a-huawei-e3372h-4g-lte-stick-from-hilink-to-stick-mode/
|
|
|
|
services.wwan = let
|
|
chat = lib.escapeShellArgs [
|
|
# Your usb modem thing might present as a tty that you run PPP
|
|
# over, or as a network device ("ndis" or "ncm"). The latter
|
|
# kind is to be preferred, at least in principle, because it's
|
|
# faster. This initialization sequence works for the Huawei
|
|
# E3372, and took much swearing: the error messages are *awful*
|
|
"" "AT"
|
|
"OK" "ATZ"
|
|
# create PDP context
|
|
"OK" "AT+CGDCONT=1,\"IP\",\"data.uk\""
|
|
# activate PDP context
|
|
"OK" "AT+CGACT=1,1"
|
|
# setup username and password per requirements of sim provider.
|
|
# (caret is special to chat, so needs escaping in AT commands)
|
|
"OK" "AT\\^AUTHDATA=1,2,\"1p\",\"one2one\",\"user\""
|
|
# start the thing (I am choosing to read this as "NDIS DialUP")
|
|
"OK" "AT\\^NDISDUP=1,1"
|
|
];
|
|
modemConfig = oneshot {
|
|
name = "modem-configure";
|
|
# this is currently only going to work if there is one
|
|
# modem only plugged in, it is plugged in already at boot,
|
|
# and nothing else is providing a USB tty.
|
|
# https://stackoverflow.com/questions/5477882/how-to-i-detect-whether-a-tty-belonging-to-a-gsm-3g-modem-is-a-data-or-control-p
|
|
up = ''
|
|
sleep 2
|
|
${pkgs.usb-modeswitch}/bin/usb_modeswitch -v 12d1 -p 14fe --huawei-new-mode
|
|
sleep 5
|
|
${pkgs.ppp}/bin/chat -s -v ${chat} 0<>/dev/ttyUSB0 1>&0
|
|
'';
|
|
down = "chat -v '' ATZ OK </dev/ttyUSB0 >&0";
|
|
};
|
|
in svc.network.link.build {
|
|
ifname = "wwan0";
|
|
dependencies = [ modemConfig ];
|
|
};
|
|
|
|
|
|
};
|
|
}
|