bruh

modules/nixos/hardware/raspberry-pi/generational/install-firmware.sh

@@ -0,0 +1,66 @@
+#! @bash@/bin/sh -e
+
+# shellcheck disable=SC3030,SC3043,SC3044,SC3054
+
+shopt -s nullglob
+
+export PATH=/empty:@path@
+
+usage() {
+    echo "usage: $0 -c <path-to-configuration> [-d <firmware-dir>]" >&2
+    exit 1
+}
+
+generationPath=         # Path to nixos configuration/generation
+target=/boot/firmware   # Firmware target directory
+
+while getopts "c:d:" opt; do
+    case "$opt" in
+        c) generationPath="$OPTARG" ;;
+        d) target="$OPTARG" ;;
+        \?) usage ;;
+    esac
+done
+
+# Copy a file from the Nix store to $target.
+declare -A filesCopied
+
+copyForced() {
+    local src="$1"
+    local dst="$2"
+
+    local dstTmp="$dst.tmp.$$"
+
+    cp "$src" "$dstTmp"
+    mv "$dstTmp" "$dst"
+}
+
+# Add the firmware files
+# fwdir=@firmware@/share/raspberrypi/boot/
+SRC_FIRMWARE_DIR=@firmware@/share/raspberrypi/boot
+
+echo "copying raspberry pi firmware..."
+
+# Boot code
+
+STARTFILES=("$SRC_FIRMWARE_DIR"/start*.elf)
+BOOTCODE="$SRC_FIRMWARE_DIR/bootcode.bin"
+FIXUPS=("$SRC_FIRMWARE_DIR"/fixup*.dat)
+for SRC in "${STARTFILES[@]}" "$BOOTCODE" "${FIXUPS[@]}"; do
+    dst="$target/$(basename "$SRC")"
+    copyForced "$SRC" "$dst"
+    filesCopied[$dst]=1
+done
+
+# remove obsolete firmware files
+for fn in $target/start*.elf $target/fixup*.dat; do
+    if ! test "${filesCopied[$fn]}" = 1; then
+        rm -vf -- "$fn"
+    fi
+done
+
+echo "copying config.txt..."
+# Add the config.txt
+copyForced @configTxt@ "$target/config.txt"
+
+echo "raspberry pi firmware installed"