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enable rmtfs: file server for remote processors

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(I'm guessing it's actually more of a "block storage" service as it
expects to serve straight from mmc partitions with no filesystem in
sight)

This is step 1 towards getting the modem working, and also seems to
have initialised the audio

[  682.111619] remoteproc remoteproc1: remote processor 4080000.remoteproc is now up
[...]
[  682.580706] input: msm8916 Headset Jack as /devices/platform/soc@0/7702000.sound/sound/card0/input5
[  687.912897] wwan wwan0: port wwan0at0 attached
[  687.914081] wwan wwan0: port wwan0at1 attached
[  687.944139] wwan wwan0: port wwan0qmi0 attached
This commit is contained in:
Daniel Barlow 2024-02-19 20:00:38 +00:00
parent 1ed8201d86
commit 4e78ad4d91
1 changed files with 33 additions and 4 deletions
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37
configuration.nix
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@ -88,10 +88,14 @@ in {
# environment.systemPackages = [ qrtr tqftpserv ];
services.udev.extraRules = ''
# copied from https://github.com/andersson/rpmsgexport
ACTION=="add", SUBSYSTEM=="rpmsg", KERNEL=="rpmsg_ctrl[0-9]*", ATTRS{rpmsg_name}=="pronto", RUN+="${rpmsgexport}/bin/rpmsgexport /dev/$name APPS_RIVA_CTRL"
SUBSYSTEM=="rpmsg", KERNEL=="rpmsg_ctrl[0-9]*", ATTRS{rpmsg_name}=="?*", SYMLINK+="rpmsg/$attr{rpmsg_name}/ctrl"
SUBSYSTEM=="rpmsg", KERNEL=="rpmsg[0-9]*", ATTR{name}=="?*", ATTRS{rpmsg_name}=="?*", SYMLINK+="rpmsg/$attr{rpmsg_name}/$attr{name}"
SUBSYSTEM!="rpmsg", GOTO="qcom_rpmsg_end"
# symlink rpmsg endpoints under useful names
ATTR{name}=="DATA5_CNTL", SYMLINK+="modem"
# open SMD channels when the remoteproc comes up
KERNEL!="rpmsg_ctrl[0-9]*", GOTO="qcom_rpmsg_end"
ATTRS{rpmsg_name}!="modem|hexagon", GOTO="qcom_rpmsg_end"
ACTION=="add", RUN+="${rpmsgexport}/bin/rpmsgexport /dev/$name DATA5_CNTL"
LABEL="qcom_rpmsg_end"
'';
environment.systemPackages = with pkgs; [ drm-framebuffer];
@ -111,5 +115,30 @@ in {
hardware.opengl = {
enable = true; driSupport = true;
};
systemd.services = {
rmtfs =
# the four files in here are partition images:
# partlabel => filename
# modemst1 => modem_fs1
# modemst2 => modem_fs2
# fsc => modem_fsc
# fsg => modem_fsg
let files = pkgs.runCommand "rmtfs" {} ''
mkdir -p $out/lib/firmware
cp ${./local/uncompressed-firmware/rmtfs}/* $out/lib/firmware
'';
in {
wantedBy = [ "multi-user.target" ];
serviceConfig = {
# https://github.com/andersson/rmtfs/blob/7a5ae7e0a57be3e09e0256b51b9075ee6b860322/rmtfs.c#L507-L541
ExecStart = "${pkgs.rmtfs}/bin/rmtfs -s -r -o ${files}/lib/firmware";
Restart = "always";
RestartSec = "10";
};
};
};
};
}