Padreug
7e90719508
The sintra live ISO (live.nix) had no serial support — ftdi_sio and the ttyJ5/ttyJ7 udev symlinks were only in hardware/upboard.nix (installed), so booting iso-sintra on real hardware failed on the validator + F56 dispenser while the disk image worked. The two definitions had already drifted (live's tejo block lacked ttyS4). Extract the UP Board serial peripherals (usbserial/ftdi_sio/cp210x, the ttyJ4/ttyJ5/ttyJ7 udev symlinks + permissions, console=tty0) into hardware/upboard-serial.nix and import it from both upboard.nix (installed tejo + sintra) and live.nix (sintra only). Single source of truth — the two artifacts can't drift again. Named upboard-serial (not sintra-serial) since upboard.nix serves both tejo-installed and sintra-installed. Camera + LED/SPI rules stay inline in upboard.nix (installed-specific; the pairing camera works via getUserMedia without the scanner symlink). Verified by eval: live sintra now carries ftdi_sio + console=tty0 + ttyJ7; installed sintra/tejo unchanged (serial present, camera present, no console dupe). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
118 lines
4.2 KiB
Nix
118 lines
4.2 KiB
Nix
# Tejo (UP Board / UP4000) Hardware Configuration
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# Intel Atom/Celeron boards used in Lamassu Tejo ATM machines.
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# Supports both UP Board and UP4000 variants — udev rules for both
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# are included since they match different kernel paths and don't conflict.
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#
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# Serial port mapping:
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# ttyJ4 = Printer (Nippon NP-2511D-2)
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# ttyJ5 = Validator (iVizion, ID003 protocol)
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# ttyJ7 = Dispenser (Fujitsu F53/F56)
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{ config, lib, pkgs, ... }:
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{
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# Serial peripherals (validator/dispenser/printer modules + udev symlinks +
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# console=tty0) are shared with the live ISO via ./upboard-serial.nix.
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imports = [ ./upboard-serial.nix ];
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boot = {
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loader = {
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systemd-boot.enable = true;
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efi.canTouchEfiVariables = true;
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timeout = 3;
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};
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initrd.availableKernelModules = [
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"xhci_pci"
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"ahci"
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"usb_storage"
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"sd_mod"
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"sdhci_pci"
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"sdhci-acpi" # UP Board sintra: eMMC controller is ACPI-enumerated, not PCI
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"mmc_block" # creates /dev/mmcblk* block-device nodes
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"i915"
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];
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# Force-load the eMMC stack in stage 1 so root-by-label resolves before
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# the kernel hands off to switch_root. Without this, initramfs panics
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# with "An error occurred in stage 1 of the boot process" because
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# /dev/disk/by-label/nixos never materialises in time.
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initrd.kernelModules = [
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"sdhci-acpi"
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"mmc_block"
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];
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kernelModules = [
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"kvm-intel"
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"i2c-dev"
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"spi-dev"
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# Serial modules (usbserial/ftdi_sio/cp210x) → ./upboard-serial.nix.
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];
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kernelParams = [
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"i915.enable_psr=0"
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# console=tty0 (keeps ttyS4 free for the F56) → ./upboard-serial.nix.
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"quiet"
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"splash"
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];
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};
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# Disk layout: GPT with ESP + ext4 root (eMMC on UP Board).
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# Labels match what make-disk-image.nix with partitionTableType="efi"
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# produces — ESP for the FAT partition, nixos for the ext4 root. We
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# previously expected `by-label/boot` here and had to manually
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# `fatlabel` the partition post-flash; aligning the label avoids
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# that hand-step on future re-flashes. (douro.nix already uses ESP.)
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fileSystems."/" = {
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device = "/dev/disk/by-label/nixos";
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fsType = "ext4";
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};
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fileSystems."/boot" = {
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device = "/dev/disk/by-label/ESP";
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fsType = "vfat";
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};
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hardware = {
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graphics = {
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enable = true;
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extraPackages = with pkgs; [
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intel-media-driver
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libva-vdpau-driver
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libvdpau-va-gl
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];
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};
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enableRedistributableFirmware = true;
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cpu.intel.updateMicrocode = true;
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};
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powerManagement = {
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enable = true;
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cpuFreqGovernor = "performance";
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};
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# Disable suspend/hibernate for kiosk
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systemd.targets = {
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sleep.enable = false;
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suspend.enable = false;
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hibernate.enable = false;
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hybrid-sleep.enable = false;
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};
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# Camera + LED/SPI peripherals. The serial rules (validator/dispenser/printer
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# symlinks + permissions) are shared with the live ISO in ./upboard-serial.nix.
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services.udev.extraRules = lib.mkAfter ''
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# ── Camera devices ─────────────────────────────────────────────────
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SUBSYSTEM=="video4linux", ATTR{index}=="0", KERNELS=="1-5", ATTRS{idVendor}=="0ac8", ATTRS{idProduct}=="0345", SYMLINK+="video-scan"
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SUBSYSTEM=="video4linux", ATTR{index}=="0", KERNELS=="1-2", ATTRS{idVendor}=="0ac8", ATTRS{idProduct}=="0345", SYMLINK+="video-scan"
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SUBSYSTEM=="video4linux", ATTR{index}=="0", KERNELS=="1-6", ATTRS{idVendor}=="0ac8", ATTRS{idProduct}=="0345", SYMLINK+="video-front"
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SUBSYSTEM=="video4linux", ATTR{index}=="0", KERNELS=="1-3", ATTRS{idVendor}=="0ac8", ATTRS{idProduct}=="0345", SYMLINK+="video-front"
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# ── LED SPI / peripherals ──────────────────────────────────────────
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KERNEL=="spidev1.0", SYMLINK+="ledspi"
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KERNEL=="spidev2.0", SYMLINK+="ledspi"
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SUBSYSTEM=="spidev", GROUP="spi", MODE="0660"
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SUBSYSTEM=="i2c-dev", GROUP="i2c", MODE="0660"
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SUBSYSTEM=="leds", KERNEL=="upboard:*", ACTION=="add|change", RUN+="${pkgs.findutils}/bin/find /sys$devpath -type f -exec ${pkgs.coreutils}/bin/chmod g+u {} + -exec ${pkgs.coreutils}/bin/chown :leds {} +"
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'';
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}
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