feat: write MAC address in uEnv.txt

Signed-off-by: Julia Pineda <[email protected]>

nebula/resources/template_gen.yaml

@@ -53,6 +53,12 @@ board-config:
     help: "Serial number of external IIO instrument connected to the carrier"
     optional: True
     netbox_field: devices.custom_fields.instr_serial
+  field_8:
+    name: hw-mac
+    default: 00:0a:35:05:ca:00
+    help: "Hardware MAC address of DUT carrier"
+    optional: True
+    netbox_field: devices.custom_fields.hw_mac
 network-config:
   field_1:
     name: dutip

nebula/tasks.py

@@ -1126,6 +1126,33 @@ def set_static_ip(
     except Exception as ex:
         print(ex)
 
+@task(
+    help={
+        "mac": "MAC Address to write in /boot/uEnv.txt",
+        "address": "UART device address (/dev/ttyACMO). If a yaml config exist it will override,"
+        + " if no yaml file exists and no address provided auto is used",
+        "yamlfilename": "Path to yaml config file. Default: /etc/default/nebula",
+        "board_name": "Name of DUT design (Ex: zynq-zc706-adv7511-fmcdaq2). Require for multi-device config files",
+    },
+)
+def write_mac_uEnv(
+    c,
+    mac,
+    address="auto",
+    yamlfilename="/etc/default/nebula",
+    board_name=None,
+):
+    """Set Static IP address of board of DUT from UART connection"""
+    try:
+        u = nebula.uart(
+            address=address, yamlfilename=yamlfilename, board_name=board_name
+        )
+        u.print_to_console = False
+        u.write_mac_uEnv(mac)
+        del u
+    except Exception as ex:
+        print(ex)
+
 
 @task(
     help={
@@ -1167,6 +1194,7 @@ def update_boot_files_uart(
 uart.add_task(get_ip)
 uart.add_task(set_dhcp)
 uart.add_task(set_static_ip)
+uart.add_task(write_mac_uEnv)
 uart.add_task(get_carriername)
 uart.add_task(get_mezzanine)
 uart.add_task(get_uart_log)

nebula/uart.py

@@ -392,6 +392,23 @@ def set_ip_static(self, address, nic="eth0"):
             self._read_for_time(period=1)
             self.start_log(logappend=True)
 
+    def write_mac_uEnv(self, address):
+        restart = False
+        if self.listen_thread_run:
+            restart = True
+            self.stop_log()
+        # Check if we need to login to the console
+        if not self._check_for_login():
+            raise Exception("Console inaccessible due to login failure")
+        cmd = "sed -i 's/ethaddr=\([0-9A-Fa-f]\{2\}[:-]\)\{5\}[0-9A-Fa-f]\{2\}"
+        cmd += "//g' /boot/uEnv.txt; "
+        cmd += 'printf " ethaddr=' + address + '" >> /boot/uEnv.txt; '
+        cmd += "ex -s +'v/\\S/d' -cwq /boot/uEnv.txt"
+        self._write_data(cmd)
+        if restart:
+            self._read_for_time(period=1)
+            self.start_log(logappend=True)
+
     def request_ip_dhcp(self, nic="eth0"):
         restart = False
         if self.listen_thread_run: