2023-07-25 12:02:58 +00:00
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# pinephone GPS happens in EG25 modem
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# serial control interface to modem is /dev/ttyUSB2
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# after enabling GPS, readout is /dev/ttyUSB1
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#
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# minimal process to enable modem and GPS:
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# - `echo 1 > /sys/class/modem-power/modem-power/device/powered`
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# - `screen /dev/ttyUSB2 115200`
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# - `AT+QGPSCFG="nmeasrc",1`
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# - `AT+QGPS=1`
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#
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# now, something like `gpsd` can directly read from /dev/ttyUSB1.
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#
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# initial GPS fix can take 15+ minutes.
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# meanwhile, services like eg25-manager can speed this up by uploading assisted GPS data to the modem.
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#
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# geoclue somehow fits in here as a geospatial provider that leverages GPS and also other sources like radio towers
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2023-08-22 07:15:14 +00:00
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{ lib, ... }:
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2023-07-25 12:02:58 +00:00
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{
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2023-08-22 07:15:14 +00:00
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# test gpsd with `gpspipe -w -n 10 2> /dev/null | grep -m 1 TPV | jq '.lat, .lon' | tr '\n' ' '`
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# ^ should return <lat> <long>
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2023-07-25 12:02:58 +00:00
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services.gpsd.enable = true;
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services.gpsd.devices = [ "/dev/ttyUSB1" ];
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2023-08-22 07:15:14 +00:00
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# test geoclue2 by building `geoclue2-with-demo-agent`
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# and running "${geoclue2-with-demo-agent}/libexec/geoclue-2/demos/where-am-i"
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services.geoclue2.enable = true;
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services.geoclue2.appConfig.where-am-i = {
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# this is the default "agent", shipped by geoclue package: allow it to use location
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isAllowed = true;
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isSystem = false;
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2023-08-22 08:49:04 +00:00
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# XXX: setting users != [] might be causing `where-am-i` to time out
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# users = [
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# # restrict to only one set of users. empty array (default) means "allow any user to access geolocation".
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# (builtins.toString config.users.users.colin.uid)
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# ];
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2023-08-22 07:15:14 +00:00
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};
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systemd.services.geoclue.after = lib.mkForce []; #< defaults to network-online, but not all my sources require network
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2023-08-22 04:53:40 +00:00
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sane.services.eg25-control.enable = true;
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2023-07-25 12:02:58 +00:00
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}
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