Update sfputil support for Ingrasys S9100

device/ingrasys/x86_64-ingrasys_s9100-r0/plugins/sfputil.py

@@ -1,19 +1,26 @@
-#!/usr/bin/env python
+# sfputil.py
+#
+# Platform-specific SFP transceiver interface for SONiC
+#
 
 try:
-    from sonic_sfp.sfputilbase import sfputilbase
-except ImportError, e:
-    raise ImportError (str(e) + "- required module not found")
+    import time
+    from sonic_sfp.sfputilbase import SfpUtilBase
+except ImportError as e:
+    raise ImportError("%s - required module not found" % str(e))
 
 
-class sfputil(sfputilbase):
-    """Platform specific sfputil class"""
+class SfpUtil(SfpUtilBase):
+    """Platform-specific SfpUtil class"""
 
-    port_start = 0
-    port_end = 31
-    ports_in_block = 32
+    PORT_START = 0
+    PORT_END = 31
+    PORTS_IN_BLOCK = 32
 
-    port_to_eeprom_mapping = {}
+    BASE_DIR_PATH = "/sys/class/gpio/gpio{0}/direction"
+    BASE_VAL_PATH = "/sys/class/gpio/gpio{0}/value"
+
+    _port_to_eeprom_mapping = {}
     port_to_i2c_mapping = {
         0: 11,
         1: 10,
@@ -49,12 +56,227 @@ class sfputil(sfputilbase):
         31: 40
     }
 
-    _qsfp_ports = range(0, ports_in_block + 1)
+    abs_to_gpio_mapping = {
+        0: 241,
+        1: 240,
+        2: 243,
+        3: 242,
+        4: 245,
+        5: 244,
+        6: 247,
+        7: 246,
+        8: 249,
+        9: 248,
+        10: 251,
+        11: 250,
+        12: 253,
+        13: 252,
+        14: 255,
+        15: 254,
+        16: 225,
+        17: 224,
+        18: 227,
+        19: 226,
+        20: 229,
+        21: 228,
+        22: 231,
+        23: 230,
+        24: 233,
+        25: 232,
+        26: 235,
+        27: 234,
+        28: 237,
+        29: 236,
+        30: 239,
+        31: 238
+    }
+
+    lpmode_to_gpio_mapping = {
+        0: 177,
+        1: 176,
+        2: 179,
+        3: 178,
+        4: 181,
+        5: 180,
+        6: 183,
+        7: 182,
+        8: 185,
+        9: 184,
+        10: 187,
+        11: 186,
+        12: 189,
+        13: 188,
+        14: 191,
+        15: 190,
+        16: 161,
+        17: 160,
+        18: 163,
+        19: 162,
+        20: 165,
+        21: 164,
+        22: 167,
+        23: 166,
+        24: 169,
+        25: 168,
+        26: 171,
+        27: 170,
+        28: 173,
+        29: 172,
+        30: 175,
+        31: 174
+    }
+
+    reset_to_gpio_mapping = {
+        0: 145,
+        1: 144,
+        2: 147,
+        3: 146,
+        4: 149,
+        5: 148,
+        6: 151,
+        7: 150,
+        8: 153,
+        9: 152,
+        10: 155,
+        11: 154,
+        12: 157,
+        13: 156,
+        14: 159,
+        15: 158,
+        16: 129,
+        17: 128,
+        18: 131,
+        19: 130,
+        20: 133,
+        21: 132,
+        22: 135,
+        23: 134,
+        24: 137,
+        25: 136,
+        26: 139,
+        27: 138,
+        28: 141,
+        29: 140,
+        30: 143,
+        31: 142
+    }
+
+    @property
+    def port_start(self):
+        return self.PORT_START
+
+    @property
+    def port_end(self):
+        return self.PORT_END
+
+    @property
+    def qsfp_ports(self):
+        return range(0, self.PORTS_IN_BLOCK + 1)
 
-    def __init__(self, port_num):
+    @property
+    def port_to_eeprom_mapping(self):
+        return self._port_to_eeprom_mapping
+
+    def __init__(self):
         # Override port_to_eeprom_mapping for class initialization
-        eeprom_path = '/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom'
+        eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom"
+
         for x in range(self.port_start, self.port_end + 1):
             port_eeprom_path = eeprom_path.format(self.port_to_i2c_mapping[x])
             self.port_to_eeprom_mapping[x] = port_eeprom_path
-        sfputilbase.__init__(self, port_num)
+
+        SfpUtilBase.__init__(self)
+
+    def get_presence(self, port_num):
+        # Check for invalid port_num
+        if port_num < self.port_start or port_num > self.port_end:
+            return False
+
+        try:
+            abs_device_file = self.BASE_VAL_PATH.format(
+                    self.abs_to_gpio_mapping[port_num])
+            val_file = open(abs_device_file)
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        content = val_file.readline().rstrip()
+        val_file.close()
+
+        # content is a string, either "0" or "1"
+        if content == "1":
+            return True
+
+        return False
+
+    def get_low_power_mode(self, port_num):
+        # Check for invalid port_num
+        if port_num < self.port_start or port_num > self.port_end:
+            return False
+
+        try:
+            lpmode_val_device_file = self.BASE_VAL_PATH.format(
+                    self.lpmode_to_gpio_mapping[port_num])
+            val_file = open(lpmode_val_device_file)
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        content = val_file.readline().rstrip()
+        val_file.close()
+
+        # content is a string, either "0" or "1"
+        if content == "1":
+            return True
+
+        return False
+
+    def set_low_power_mode(self, port_num, lpmode):
+        # Check for invalid port_num
+        if port_num < self.port_start or port_num > self.port_end:
+            return False
+
+        try:
+            lpmode_val_device_file = self.BASE_VAL_PATH.format(
+                    self.lpmode_to_gpio_mapping[port_num])
+            val_file = open(lpmode_val_device_file, "w")
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        val_file.write("1" if lpmode is True else "0")
+        val_file.close()
+
+        return True
+
+    def reset(self, port_num):
+        # Check for invalid port_num
+        if port_num < self.port_start or port_num > self.port_end:
+            return False
+
+        try:
+            reset_val_device_file = self.BASE_VAL_PATH.format(
+                    self.reset_to_gpio_mapping[port_num])
+            val_file = open(reset_val_device_file, "w")
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        val_file.write("1")
+        val_file.close()
+
+        # Sleep 1 second to allow it to settle
+        time.sleep(1)
+
+        try:
+            reset_val_device_file = self.BASE_VAL_PATH.format(
+                    self.reset_to_gpio_mapping[port_num])
+            val_file = open(reset_val_device_file, "w")
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        val_file.write("0")
+        val_file.close()
+
+        return True