[as7312-54x] Support platform API2.0 (#6272)

Add platform 2.0 support for Accton as7312-54x platform

Author: jostar-yang

device/accton/x86_64-accton_as7312_54x-r0/sonic_platform/__init__.py

@@ -0,0 +1,2 @@
+__all__ = ['chassis', 'eeprom', 'platform', 'psu', 'sfp', 'thermal', 'fan']
+from . import platform

device/accton/x86_64-accton_as7312_54x-r0/sonic_platform/chassis.py

@@ -0,0 +1,193 @@
+#############################################################################
+# Edgecore
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the Chassis information which are available in the platform
+#
+#############################################################################
+
+import os
+
+try:
+    from sonic_platform_base.chassis_base import ChassisBase
+    from .helper import APIHelper
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+NUM_FAN_TRAY = 6
+NUM_FAN = 2
+NUM_PSU = 2
+NUM_THERMAL = 4
+PORT_END = 54
+NUM_COMPONENT = 4
+HOST_REBOOT_CAUSE_PATH = "/host/reboot-cause/"
+PMON_REBOOT_CAUSE_PATH = "/usr/share/sonic/platform/api_files/reboot-cause/"
+REBOOT_CAUSE_FILE = "reboot-cause.txt"
+PREV_REBOOT_CAUSE_FILE = "previous-reboot-cause.txt"
+HOST_CHK_CMD = "docker > /dev/null 2>&1"
+
+
+class Chassis(ChassisBase):
+    """Platform-specific Chassis class"""
+
+    def __init__(self):
+        ChassisBase.__init__(self)
+        self._api_helper = APIHelper()
+        self._api_helper = APIHelper()
+        self.is_host = self._api_helper.is_host()
+        
+        self.config_data = {}
+        
+        self.__initialize_fan()
+        self.__initialize_psu()
+        self.__initialize_thermals()
+        self.__initialize_components()
+        self.__initialize_sfp()
+        self.__initialize_eeprom()
+    
+    def __initialize_sfp(self):
+        from sonic_platform.sfp import Sfp
+        for index in range(0, PORT_END):
+            sfp = Sfp(index)
+            self._sfp_list.append(sfp)
+        self.sfp_module_initialized = True
+        
+    def __initialize_fan(self):
+        from sonic_platform.fan import Fan
+        for fant_index in range(0, NUM_FAN_TRAY):
+            for fan_index in range(0, NUM_FAN):
+                fan = Fan(fant_index, fan_index)
+                self._fan_list.append(fan)
+                
+    def __initialize_psu(self):
+        from sonic_platform.psu import Psu
+        for index in range(0, NUM_PSU):
+            psu = Psu(index)
+            self._psu_list.append(psu)
+    
+    def __initialize_thermals(self):
+        from sonic_platform.thermal import Thermal
+        for index in range(0, NUM_THERMAL):
+            thermal = Thermal(index)
+            self._thermal_list.append(thermal)
+    
+    def __initialize_eeprom(self):
+        from sonic_platform.eeprom import Tlv
+        self._eeprom = Tlv()
+
+    def __initialize_components(self):
+        from sonic_platform.component import Component
+        for index in range(0, NUM_COMPONENT):
+            component = Component(index)
+            self._component_list.append(component)
+    
+    def __initialize_watchdog(self):
+        from sonic_platform.watchdog import Watchdog
+        self._watchdog = Watchdog()
+    
+    
+    def __is_host(self):
+        return os.system(HOST_CHK_CMD) == 0
+
+    def __read_txt_file(self, file_path):
+        try:
+            with open(file_path, 'r') as fd:
+                data = fd.read()
+                return data.strip()
+        except IOError:
+            pass
+        return None
+
+    def get_name(self):
+        """
+        Retrieves the name of the device
+            Returns:
+            string: The name of the device
+        """
+        
+        return self._api_helper.hwsku
+
+    def get_presence(self):
+        """
+        Retrieves the presence of the Chassis
+        Returns:
+            bool: True if Chassis is present, False if not
+        """
+        return True
+    
+    def get_status(self):
+        """
+        Retrieves the operational status of the device
+        Returns:
+            A boolean value, True if device is operating properly, False if not
+        """
+        return True
+    
+    def get_base_mac(self):
+        """
+        Retrieves the base MAC address for the chassis
+        Returns:
+            A string containing the MAC address in the format
+            'XX:XX:XX:XX:XX:XX'
+        """
+        return self._eeprom.get_mac()
+
+    def get_serial_number(self):
+        """
+        Retrieves the hardware serial number for the chassis
+        Returns:
+            A string containing the hardware serial number for this chassis.
+        """
+        return self._eeprom.get_serial()
+
+    def get_system_eeprom_info(self):
+        """
+        Retrieves the full content of system EEPROM information for the chassis
+        Returns:
+            A dictionary where keys are the type code defined in
+            OCP ONIE TlvInfo EEPROM format and values are their corresponding
+            values.
+        """
+        return self._eeprom.get_eeprom()   
+
+    def get_reboot_cause(self):
+        """
+        Retrieves the cause of the previous reboot
+
+        Returns:
+            A tuple (string, string) where the first element is a string
+            containing the cause of the previous reboot. This string must be
+            one of the predefined strings in this class. If the first string
+            is "REBOOT_CAUSE_HARDWARE_OTHER", the second string can be used
+            to pass a description of the reboot cause.
+        """
+        
+        reboot_cause_path = (HOST_REBOOT_CAUSE_PATH + REBOOT_CAUSE_FILE)
+        sw_reboot_cause = self._api_helper.read_txt_file(
+            reboot_cause_path) or "Unknown"
+
+         
+        return ('REBOOT_CAUSE_NON_HARDWARE', sw_reboot_cause)
+
+    def get_sfp(self, index):
+        """
+        Retrieves sfp represented by (1-based) index <index>
+        Args:
+            index: An integer, the index (1-based) of the sfp to retrieve.
+            The index should be the sequence of a physical port in a chassis,
+            starting from 1.
+            For example, 1 for Ethernet0, 2 for Ethernet4 and so on.
+        Returns:
+            An object dervied from SfpBase representing the specified sfp
+        """
+        sfp = None
+        if not self.sfp_module_initialized:
+            self.__initialize_sfp()
+
+        try:
+            # The index will start from 1
+            sfp = self._sfp_list[index-1]
+        except IndexError:
+            sys.stderr.write("SFP index {} out of range (1-{})\n".format(
+                             index, len(self._sfp_list)))
+        return sfp

device/accton/x86_64-accton_as7312_54x-r0/sonic_platform/component.py

@@ -0,0 +1,125 @@
+#############################################################################
+# Celestica
+#
+# Component contains an implementation of SONiC Platform Base API and
+# provides the components firmware management function
+#
+#############################################################################
+
+import shlex
+import subprocess
+
+try:
+    from sonic_platform_base.component_base import ComponentBase
+    from .helper import APIHelper
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+CPLD_ADDR_MAPPING = {
+    "CPLD1": "4-0060",
+    "CPLD2": "5-0062",
+    "CPLD3": "6-0064",
+}
+SYSFS_PATH = "/sys/bus/i2c/devices/"
+BIOS_VERSION_PATH = "/sys/class/dmi/id/bios_version"
+COMPONENT_LIST= [
+   ("CPLD1", "CPLD 1"),
+   ("CPLD2", "CPLD 2"),
+   ("CPLD3", "CPLD 3"),
+   ("BIOS", "Basic Input/Output System")
+   
+]
+COMPONENT_DES_LIST = ["CPLD","Basic Input/Output System"]
+
+
+class Component(ComponentBase):
+    """Platform-specific Component class"""
+
+    DEVICE_TYPE = "component"
+
+    def __init__(self, component_index=0):
+        self._api_helper=APIHelper()
+        ComponentBase.__init__(self)
+        self.index = component_index
+        self.name = self.get_name()
+
+    def __run_command(self, command):
+        # Run bash command and print output to stdout
+        try:
+            process = subprocess.Popen(
+                shlex.split(command), stdout=subprocess.PIPE)
+            while True:
+                output = process.stdout.readline()
+                if output == '' and process.poll() is not None:
+                    break
+            rc = process.poll()
+            if rc != 0:
+                return False
+        except Exception:
+            return False
+        return True
+
+    def __get_bios_version(self):
+        # Retrieves the BIOS firmware version
+        try:
+            with open(BIOS_VERSION_PATH, 'r') as fd:
+                bios_version = fd.read()
+                return bios_version.strip()
+        except Exception as e:
+            return None
+   
+    def __get_cpld_version(self):
+        # Retrieves the CPLD firmware version
+        cpld_version = dict()
+        for cpld_name in CPLD_ADDR_MAPPING:
+            try:
+                cpld_path = "{}{}{}".format(SYSFS_PATH, CPLD_ADDR_MAPPING[cpld_name], '/version')
+                cpld_version_raw= self._api_helper.read_txt_file(cpld_path)
+                cpld_version[cpld_name] = "{}".format(int(cpld_version_raw,16))
+            except Exception as e:
+                print('Get exception when read cpld')
+                cpld_version[cpld_name] = 'None'
+        
+        return cpld_version
+
+    def get_name(self):
+        """
+        Retrieves the name of the component
+         Returns:
+            A string containing the name of the component
+        """
+        return COMPONENT_LIST[self.index][0]
+
+    def get_description(self):
+        """
+        Retrieves the description of the component
+            Returns:
+            A string containing the description of the component
+        """
+        return COMPONENT_LIST[self.index][1]
+        #return "testhwsku"
+
+    def get_firmware_version(self):
+        """
+        Retrieves the firmware version of module
+        Returns:
+            string: The firmware versions of the module
+        """
+        fw_version = None
+        if self.name == "BIOS":
+            fw_version = self.__get_bios_version()
+        elif "CPLD" in self.name:
+            cpld_version = self.__get_cpld_version()
+            fw_version = cpld_version.get(self.name)
+
+        return fw_version
+
+    def install_firmware(self, image_path):
+        """
+        Install firmware to module
+        Args:
+            image_path: A string, path to firmware image
+        Returns:
+            A boolean, True if install successfully, False if not
+        """
+        raise NotImplementedError