Updates

device_server.py

@@ -0,0 +1,122 @@
+"""
+device_server.py  —  deploy this on the target device (192.168.45.8)
+
+Provides:
+  PUT /display   {"state": "on"|"off"}   — blank/unblank framebuffer
+  GET /registers                          — read MIPI DSI PHY registers via memtool
+
+Add addresses to REGISTER_COMMANDS to capture more register ranges.
+"""
+
+import os
+import re
+import subprocess
+
+from flask import Flask, jsonify, request
+
+app = Flask(__name__)
+
+# ---------------------------------------------------------------------------
+# Register commands to execute on each GET /registers request.
+# Each entry is a complete memtool command string.
+# ---------------------------------------------------------------------------
+REGISTER_COMMANDS = [
+    "memtool md -l 0x32e100b4+0x0c",   # DSIM_PHYTIMING / PHYTIMING1 / PHYTIMING2
+]
+
+# Known Samsung DSIM register names (base 0x32E10000, i.MX 8M Mini)
+_DSIM_NAMES = {
+    0x32e10004: "DSIM_STATUS",
+    0x32e10008: "DSIM_CLKCTRL",
+    0x32e1000c: "DSIM_TIMEOUT",
+    0x32e10010: "DSIM_CONFIG",
+    0x32e10014: "DSIM_ESCMODE",
+    0x32e100ac: "DSIM_PHYACCHR",
+    0x32e100b0: "DSIM_PHYACCHR1",
+    0x32e100b4: "DSIM_PHYTIMING",
+    0x32e100b8: "DSIM_PHYTIMING1",
+    0x32e100bc: "DSIM_PHYTIMING2",
+}
+
+
+def _parse_memtool_output(raw: str) -> list:
+    """
+    Parse 'memtool md -l' output into a list of dicts.
+
+    Handles both formats:
+      32e100b4: 00000001 12345678 ...
+      0x32e100b4:  0x00000001  0x12345678 ...
+    """
+    registers = []
+    for line in raw.splitlines():
+        line = line.strip()
+        if not line:
+            continue
+        m = re.match(r"(?:0x)?([0-9a-fA-F]+)\s*:\s*(.+)", line)
+        if not m:
+            continue
+        base_addr = int(m.group(1), 16)
+        values = re.findall(r"[0-9a-fA-F]{8}", m.group(2))
+        for i, val in enumerate(values):
+            addr = base_addr + i * 4
+            registers.append({
+                "address": f"0x{addr:08x}",
+                "value":   f"0x{val.lower()}",
+                "name":    _DSIM_NAMES.get(addr, ""),
+            })
+    return registers
+
+
+# ---------------------------------------------------------------------------
+# Routes
+# ---------------------------------------------------------------------------
+
+@app.route("/display", methods=["PUT"])
+def control_display():
+    data  = request.get_json()
+    state = data.get("state", "").lower()
+    if state == "off":
+        os.system("echo 4 > /sys/class/graphics/fb0/blank")
+        return jsonify({"status": "Display OFF"}), 200
+    elif state == "on":
+        os.system("echo 0 > /sys/class/graphics/fb0/blank")
+        return jsonify({"status": "Display ON"}), 200
+    else:
+        return jsonify({"error": "Invalid state. Use 'on' or 'off'"}), 400
+
+
+@app.route("/registers", methods=["GET"])
+def get_registers():
+    """Read MIPI DSI PHY timing registers via memtool and return JSON."""
+    all_registers = []
+    raw_lines     = []
+    errors        = []
+
+    for cmd_str in REGISTER_COMMANDS:
+        try:
+            result = subprocess.run(
+                cmd_str.split(), capture_output=True, text=True, timeout=5
+            )
+            raw = result.stdout.strip()
+            if raw:
+                raw_lines.append(raw)
+                all_registers.extend(_parse_memtool_output(raw))
+            if result.returncode != 0 and result.stderr.strip():
+                errors.append(f"{cmd_str}: {result.stderr.strip()}")
+        except FileNotFoundError:
+            errors.append(f"{cmd_str}: memtool not found in PATH")
+        except subprocess.TimeoutExpired:
+            errors.append(f"{cmd_str}: timed out after 5 s")
+        except Exception as e:
+            errors.append(f"{cmd_str}: {e}")
+
+    return jsonify({
+        "commands":  REGISTER_COMMANDS,
+        "registers": all_registers,
+        "raw":       "\n".join(raw_lines),
+        "errors":    errors if errors else None,
+    }), 200
+
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=5000)