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Enable hardware PWM timers and w1-gpio

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coolneng
2022-05-04 19:28:18 +02:00
parent 5da1a29bff
commit e0c2bdb80a
3 changed files with 42 additions and 4 deletions
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17
modules/periodic.nix
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@@ -30,18 +30,27 @@ in {
};
# Enable SATA HAT
systemd.services.sata-hat = {
systemd.services.sata-hat = let
overlay-directory =
"/boot/nixos/4mamyanz1hlc4wz3c427qjh6rabngwvj-linux-5.10.17-1.20210303-dtbs/overlays/";
in {
description = "Enable software support for SATA Hat";
wantedBy = [ "zfs-import.target" ];
script = ''
${pkgs.bash}/bin/bash -c "/etc/nixos/scripts/SATA-hat.sh on"
'';
preStart = ''
${pkgs.libraspberrypi}/bin/dtoverlay -d ${overlay-directory} pwm-2chan pin=12 func=4 pin2=13 func2=4
${pkgs.libraspberrypi}/bin/dtoverlay -d ${overlay-directory} w1-gpio
'';
preStop = ''
${pkgs.libraspberrypi}/bin/dtoverlay -r -d ${overlay-directory} pwm-2chan
${pkgs.libraspberrypi}/bin/dtoverlay -r -d ${overlay-directory} w1-gpio
${pkgs.bash}/bin/bash -c "/etc/nixos/scripts/SATA-hat.sh off"
'';
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStop = ''
${pkgs.bash}/bin/bash -c "/etc/nixos/scripts/SATA-hat.sh off"
'';
};
before = [ "zfs-import.target" "zfs-import-vault.service" "umount.target" ];
requires = [ "systemd-udev-settle.service" ];