[Author]:[email protected] [Jira ID]:N/A [Description]: fix fan …

…led issue

platform/broadcom/sonic-platform-modules-cel/belgite/pddf/sonic_platform/fan.py

@@ -3,6 +3,12 @@
     import os
 except ImportError as e:
     raise ImportError(str(e) + "- required module not found")
+# ------------------------------------------------------------------
+# HISTORY:
+#    5/1/2022 (A.D.)
+#    add function:set_status_led,
+#    Solve the problem that when a fan is pulled out, the Fan LED on the front panel is still green Issue-#11525
+# ------------------------------------------------------------------
 FAN_DIRECTION_FILE_PATH = "/var/fan_direction"
 
 
@@ -62,3 +68,46 @@ def get_status(self):
         status = True if (speed != 0) else False
         return status
 
+    def get_target_speed(self):
+        """
+        Retrieves the target (expected) speed of the fan
+
+        Returns:
+            An integer, the percentage of full fan speed, in the range 0 (off)
+                 to 100 (full speed)
+        """
+        target_speed = 0
+        if self.is_psu_fan:
+            # Target speed not usually supported for PSU fans
+            target_speed = "N/A"
+        else:
+            idx = (self.fantray_index - 1) * 1 + self.fan_index
+            attr = "fan" + str(idx) + "_pwm"
+            pwm_path = "/sys/devices/pci0000:00/0000:00:12.0/i2c-0/i2c-2/2-0066/" + attr
+            pwm = 0
+            with open(pwm_path, "r") as f:
+                pwm = f.read()
+
+            percentage = int(pwm.strip())
+            speed_percentage = int(round(percentage / 255 * 100))
+            target_speed = speed_percentage
+
+        return target_speed
+
+    def set_status_led(self, color):
+        color_dict = {"green": "STATUS_LED_COLOR_GREEN",
+                      "red": "STATUS_LED_COLOR_AMBER"}
+        color = color_dict.get(color, "off")
+        index = str(self.fantray_index - 1)
+        led_device_name = "FANTRAY{}".format(self.fantray_index) + "_LED"
+
+        result, msg = self.pddf_obj.is_supported_sysled_state(led_device_name, color)
+        if result is False:
+            return False
+        device_name = self.pddf_obj.data[led_device_name]['dev_info']['device_name']
+        self.pddf_obj.create_attr('device_name', device_name, self.pddf_obj.get_led_path())
+        self.pddf_obj.create_attr('index', index, self.pddf_obj.get_led_path())
+        self.pddf_obj.create_attr('color', color, self.pddf_obj.get_led_cur_state_path())
+
+        self.pddf_obj.create_attr('dev_ops', 'set_status', self.pddf_obj.get_led_path())
+        return True