runners: jlink: Add support for J-Link over IP

Add support for J-Link over IP and J-Link remote server.
If the "--dev-id" is a valid ip, the transport over ip is selected.
Otherwise usb is selected.

Signed-off-by: Michael Arnold <marnold@baumer.com>

scripts/west_commands/runners/jlink.py

@@ -5,6 +5,7 @@
 '''Runner for debugging with J-Link.'''
 
 import argparse
+import ipaddress
 import logging
 import os
 from pathlib import Path
@@ -25,6 +26,13 @@
 DEFAULT_JLINK_EXE = 'JLink.exe' if sys.platform == 'win32' else 'JLinkExe'
 DEFAULT_JLINK_GDB_PORT = 2331
 
+def is_ip(ip):
+    try:
+        ipaddress.ip_address(ip)
+    except ValueError:
+        return False
+    return True
+
 class ToggleAction(argparse.Action):
 
     def __call__(self, parser, args, ignored, option):
@@ -80,7 +88,8 @@ def capabilities(cls):
     @classmethod
     def dev_id_help(cls) -> str:
         return '''Device identifier. Use it to select the J-Link Serial Number
-                  of the device connected over USB.'''
+                  of the device connected over USB. If the J-Link is connected over ip,
+                  the Device identifier is the ip.'''
 
     @classmethod
     def tool_opt_help(cls) -> str:
@@ -226,9 +235,9 @@ def do_run(self, command, **kwargs):
                                'RTOSPlugin_Zephyr')
 
         server_cmd = ([self.gdbserver] +
-                       # only USB connections supported
-                      ['-select', 'usb' + (f'={self.dev_id}'
-                                           if self.dev_id else ''),
+                      ['-select',
+                                           ('ip' if is_ip(self.dev_id) else 'usb') +
+                                           (f'={self.dev_id}' if self.dev_id else ''),
                        '-port', str(self.gdb_port),
                        '-if', self.iface,
                        '-speed', self.speed,
@@ -355,8 +364,7 @@ def flash(self, **kwargs):
                 loader_details = "?" + self.loader
 
             cmd = ([self.commander] +
-                    # only USB connections supported
-                   (['-USB', f'{self.dev_id}'] if self.dev_id else []) +
+                   (['-IP', f'{self.dev_id}'] if is_ip(self.dev_id) else (['-USB', f'{self.dev_id}'] if self.dev_id else [])) +
                    (['-nogui', '1'] if self.supports_nogui else []) +
                    ['-if', self.iface,
                     '-speed', self.speed,