update install, add led script

README.md

@@ -32,9 +32,8 @@ compulab guide: [OS installation](https://mediawiki.compulab.com/w/index.php?tit
 
 ## Add layers
 
-Files to update system to Buster
+```bash
+sudo ./install.sh
+```
 
-Two options:
+Copies `firmware/config.txt` (backing up the original as `config.bak`) and the `iotg-rpi4` device tree overlays to `/boot/firmware/`. Reboot afterwards.
-
-1. copy `firmware` to device. (partial `config.txt` and overlays)
-2. install repackaged .deb overlay (**untested**)

install.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+FIRMWARE_SRC="$SCRIPT_DIR/firmware"
+BOOT="/boot/firmware"
+
+if [[ $EUID -ne 0 ]]; then
+    echo "ERROR: this script must be run as root (use sudo)" >&2
+    exit 1
+fi
+
+echo "=== IOT-GATE-RPI4 layer install ==="
+echo "Source : $FIRMWARE_SRC"
+echo "Target : $BOOT"
+echo
+
+# --- config.txt ---
+echo "[1/2] Installing config.txt"
+
+if [[ -f "$BOOT/config.txt" ]]; then
+    echo "  Backing up $BOOT/config.txt -> $BOOT/config.bak"
+    cp -v "$BOOT/config.txt" "$BOOT/config.bak"
+else
+    echo "  WARNING: $BOOT/config.txt not found, skipping backup"
+fi
+
+echo "  Copying $FIRMWARE_SRC/config.txt -> $BOOT/config.txt"
+cp -v "$FIRMWARE_SRC/config.txt" "$BOOT/config.txt"
+
+# --- overlays ---
+echo
+echo "[2/2] Installing device tree overlays"
+
+OVERLAY_SRC="$FIRMWARE_SRC/overlays/iotg-rpi4"
+OVERLAY_DST="$BOOT/overlays/iotg-rpi4"
+
+if [[ ! -d "$OVERLAY_SRC" ]]; then
+    echo "  ERROR: overlay source directory not found: $OVERLAY_SRC" >&2
+    exit 1
+fi
+
+echo "  Creating $OVERLAY_DST"
+mkdir -p "$OVERLAY_DST"
+
+for f in "$OVERLAY_SRC"/*; do
+    echo "  Copying $(basename "$f")"
+    cp -v "$f" "$OVERLAY_DST/"
+done
+
+echo
+echo "=== Done ==="
+echo "Reboot for overlay changes to take effect."

led_status.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+# green: gpiochip3 line 13 / LED1_GREEN (0 = on, 1 = off, active-low)
+# red:   gpiochip3 line 14 / LED2_RED  (0 = on, 1 = off, active-low)
+#
+# gpioset v2 holds the line until the process exits, so each LED is driven
+# by a background process. We kill and replace it to change state.
+
+CHIP=/dev/gpiochip3
+GREEN_PIN=13
+RED_PIN=14
+
+green_pid=""
+red_pid=""
+
+set_led() {
+    local pin=$1 val=$2 pid_var=$3
+    kill "${!pid_var}" 2>/dev/null || true
+    gpioset --chip "$CHIP" "${pin}=${val}" &
+    printf -v "$pid_var" '%s' "$!"
+}
+
+cleanup() {
+    kill "$green_pid" "$red_pid" 2>/dev/null || true
+}
+trap 'cleanup; exit 0' INT TERM
+trap cleanup EXIT
+
+# release any lines left held by a previous run of this script
+pkill -f "gpioset.*$CHIP" 2>/dev/null || true
+
+green_state=0  # start ON
+
+while true; do
+    green_state=$(( 1 - green_state ))
+    set_led "$GREEN_PIN" "$green_state" green_pid
+
+    if ping -q -c 1 -W 1 8.8.8.8 >/dev/null 2>&1; then
+        set_led "$RED_PIN" 1 red_pid
+    else
+        set_led "$RED_PIN" 0 red_pid
+    fi
+
+    sleep 2
+done

repackage_for_buster.py

@@ -1,128 +0,0 @@
-#!/usr/bin/env python3
-"""
-Repackage iotg-rpi4-config .deb for Debian Buster+ compatibility.
-
-Changes:
-- Updates CONFIG path from /boot/config.txt to /boot/firmware/config.txt
-- Relocates overlays from /boot/overlays/ to /boot/firmware/overlays/
-"""
-
-import shutil
-import subprocess
-import tempfile
-from pathlib import Path
-
-
-def run_cmd(cmd: list[str], cwd: Path | None = None) -> None:
-    """Run shell command and handle errors."""
-    result = subprocess.run(cmd, cwd=cwd, capture_output=True, text=True)
-    if result.returncode != 0:
-        raise RuntimeError(f"Command failed: {' '.join(cmd)}\n{result.stderr}")
-
-
-def modify_functions_file(functions_path: Path) -> None:
-    """Update CONFIG path in iotg-rpi4-functions."""
-    content = functions_path.read_text()
-
-    # Replace the CONFIG path
-    modified = content.replace(
-        "CONFIG=/boot/config.txt",
-        "CONFIG=/boot/firmware/config.txt"
-    )
-
-    # Also update the backup path reference (it uses ${CONFIG} so should be fine)
-    # But let's verify the change was made
-    if modified == content:
-        raise RuntimeError("Failed to modify CONFIG path - pattern not found")
-
-    functions_path.write_text(modified)
-    print(f"✓ Modified {functions_path.name}")
-
-
-def relocate_overlays(extract_dir: Path) -> None:
-    """Move overlays from /boot/overlays to /boot/firmware/overlays."""
-    old_path = extract_dir / "boot" / "overlays" / "iotg-rpi4"
-    new_path = extract_dir / "boot" / "firmware" / "overlays" / "iotg-rpi4"
-
-    if not old_path.exists():
-        raise RuntimeError(f"Overlay directory not found: {old_path}")
-
-    # Create new directory structure
-    new_path.parent.mkdir(parents=True, exist_ok=True)
-
-    # Move the iotg-rpi4 directory
-    shutil.move(str(old_path), str(new_path))
-
-    # Remove old empty directories
-    (extract_dir / "boot" / "overlays").rmdir()
-
-    print(f"✓ Relocated overlays to boot/firmware/overlays/iotg-rpi4/")
-
-
-def repackage_deb(original_deb: Path, output_deb: Path) -> None:
-    """Extract, modify, and repackage the .deb file."""
-
-    with tempfile.TemporaryDirectory() as tmpdir:
-        work_dir = Path(tmpdir)
-        extract_dir = work_dir / "package"
-        control_dir = work_dir / "DEBIAN"
-
-        extract_dir.mkdir()
-        control_dir.mkdir()
-
-        print(f"Extracting {original_deb.name}...")
-        run_cmd(["dpkg-deb", "-x", str(original_deb), str(extract_dir)])
-        run_cmd(["dpkg-deb", "-e", str(original_deb), str(control_dir)])
-
-        # Modify the functions file
-        functions_file = extract_dir / "usr" / "local" / "bin" / "iotg-rpi4-functions"
-        modify_functions_file(functions_file)
-
-        # Relocate overlays
-        relocate_overlays(extract_dir)
-
-        # Update control file version
-        control_file = control_dir / "control"
-        control_content = control_file.read_text()
-        control_content = control_content.replace(
-            "Version: 1.3-1",
-            "Version: 1.3-1buster1"
-        )
-        control_file.write_text(control_content)
-        print("✓ Updated control file version")
-
-        # Copy DEBIAN directory into extract_dir
-        shutil.copytree(control_dir, extract_dir / "DEBIAN")
-
-        # Build new .deb
-        print(f"Building {output_deb.name}...")
-        run_cmd(["dpkg-deb", "-b", str(extract_dir), str(output_deb)])
-
-    print(f"\n✓ Successfully created {output_deb}")
-
-
-def main() -> None:
-    """Main entry point."""
-    script_dir = Path(__file__).parent
-    original_deb = script_dir / "iotg-rpi4-config_1.3-1_all.deb"
-    output_deb = script_dir / "iotg-rpi4-config_1.3-1buster1_all.deb"
-
-    if not original_deb.exists():
-        raise FileNotFoundError(f"Original .deb not found: {original_deb}")
-
-    if output_deb.exists():
-        print(f"Removing existing {output_deb.name}...")
-        output_deb.unlink()
-
-    print("Repackaging for Debian Buster+ compatibility\n")
-    repackage_deb(original_deb, output_deb)
-
-    print("\nChanges made:")
-    print("  • CONFIG=/boot/config.txt → CONFIG=/boot/firmware/config.txt")
-    print("  • Overlays moved from /boot/overlays/ → /boot/firmware/overlays/")
-    print("  • Version updated to 1.3-1buster1")
-    print(f"\nInstall with: sudo dpkg -i {output_deb.name}")
-
-
-if __name__ == "__main__":
-    main()