module openconfig-platform-transceiver {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/platform/transceiver";

    prefix oc-transceiver;

    import openconfig-platform {
      prefix oc-platform;
    }
    import openconfig-platform-port {
      prefix oc-port;
    }
    import openconfig-interfaces {
      prefix oc-if;
    }
    import openconfig-transport-types {
      prefix oc-opt-types;
    }
    import openconfig-types {
      prefix oc-types;
    }
    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-yang-types {
      prefix oc-yang;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
www.openconfig.net";

    description
      "This module defines configuration and operational state data
for transceivers (i.e., pluggable optics).  The module should be
used in conjunction with the platform model where other
physical entity data are represented.

In the platform model, a component of type=TRANSCEIVER is
expected to be a subcomponent of a PORT component.  This
module defines a concrete schema for the associated data for
components with type=TRANSCEIVER.";

    revision "2018-01-22" {
      description
        "Fixed physical-channel path reference";
      reference
        "0.4.1";

    }

    revision "2017-09-18" {
      description
        "Use openconfig-yang-types module";
      reference
        "0.4.0";

    }

    revision "2017-07-08" {
      description
        "Adds clarification on aggregate power measurement data";
      reference
        "0.3.0";

    }

    revision "2016-12-22" {
      description
        "Adds preconfiguration data and clarified units";
      reference
        "0.2.0";

    }

    oc-ext:openconfig-version "0.4.1";

    grouping optical-power-state {
      description
        "Reusable leaves related to optical power state -- these
are read-only state values. If avg/min/max statistics are
not supported, the target is expected to just supply the
instant value";
      container output-power {
        description
          "The output optical power of a physical channel in units
of 0.01dBm, which may be associated with individual
physical channels, or an aggregate of multiple physical
channels (i.e., for the overall transceiver). For an
aggregate, this may be a measurement from a photodetector
or a a calculation performed on the device by summing up
all of the related individual physical channels.
Values include the instantaneous, average, minimum, and
maximum statistics. If avg/min/max statistics are not
supported, the target is expected to just supply the
instant value";
        uses oc-types:avg-min-max-instant-stats-precision2-dBm;
      }  // container output-power

      container input-power {
        description
          "The input optical power of a physical channel in units
of 0.01dBm, which may be associated with individual
physical channels, or an aggregate of multiple physical
channels (i.e., for the overall transceiver). For an
aggregate, this may be a measurement from a photodetector
or a a calculation performed on the device by summing up
all of the related individual physical channels.
Values include the instantaneous, average, minimum, and
maximum statistics. If avg/min/max statistics are not
supported, the target is expected to just supply the
instant value";
        uses oc-types:avg-min-max-instant-stats-precision2-dBm;
      }  // container input-power

      container laser-bias-current {
        description
          "The current applied by the system to the transmit laser to
achieve the output power. The current is expressed in mA
with up to two decimal precision. Values include the
instantaneous, average, minimum, and maximum statistics.
If avg/min/max statistics are not supported, the target is
expected to just supply the instant value";
        uses oc-types:avg-min-max-instant-stats-precision2-mA;
      }  // container laser-bias-current
    }  // grouping optical-power-state

    grouping output-optical-frequency {
      description
        "Reusable leaves related to optical output power -- this is
typically configurable on line side and read-only on the
client-side";
      leaf output-frequency {
        type oc-opt-types:frequency-type;
        description
          "The frequency in MHz of the individual physical channel
(e.g. ITU C50 - 195.0THz and would be reported as
195,000,000 MHz in this model). This attribute is not
configurable on most client ports.";
      }
    }  // grouping output-optical-frequency

    grouping physical-channel-config {
      description
        "Configuration data for physical client channels";
      leaf index {
        type uint16 {
          range "0..max";
        }
        description
          "Index of the physical channnel or lane within a physical
client port";
      }

      leaf description {
        type string;
        description
          "Text description for the client physical channel";
      }

      leaf tx-laser {
        type boolean;
        description
          "Enable (true) or disable (false) the transmit label for the
channel";
      }

      leaf target-output-power {
        type decimal64 {
          fraction-digits 2;
        }
        units "dBm";
        description
          "Target output optical power level of the optical channel,
expressed in increments of 0.01 dBm (decibel-milliwats)";
      }
    }  // grouping physical-channel-config

    grouping physical-channel-state {
      description
        "Operational state data for client channels.";
      uses output-optical-frequency;

      uses optical-power-state;
    }  // grouping physical-channel-state

    grouping physical-channel-top {
      description
        "Top-level grouping for physical client channels";
      container physical-channels {
        description
          "Enclosing container for client channels";
        list channel {
          key "index";
          description
            "List of client channels, keyed by index within a physical
client port.  A physical port with a single channel would
have a single zero-indexed element";
          leaf index {
            type leafref {
              path "../config/index";
            }
            description
              "Reference to the index number of the channel";
          }

          container config {
            description
              "Configuration data for physical channels";
            uses physical-channel-config;
          }  // container config

          container state {
            config false;
            description
              "Operational state data for channels";
            uses physical-channel-config;

            uses physical-channel-state;
          }  // container state
        }  // list channel
      }  // container physical-channels
    }  // grouping physical-channel-top

    grouping port-transceiver-config {
      description
        "Configuration data for client port transceivers";
      leaf enabled {
        type boolean;
        description
          "Turns power on / off to the transceiver -- provides a means
to power on/off the transceiver (in the case of SFP, SFP+,
QSFP,...) or enable high-power mode (in the case of CFP,
CFP2, CFP4) and is optionally supported (device can choose to
always enable).  True = power on / high power, False =
powered off";
      }

      leaf form-factor-preconf {
        type identityref {
          base oc-opt-types:TRANSCEIVER_FORM_FACTOR_TYPE;
        }
        description
          "Indicates the type of optical transceiver used on this
port.  If the client port is built into the device and not
pluggable, then non-pluggable is the corresponding state. If
a device port supports multiple form factors (e.g. QSFP28
and QSFP+, then the value of the transceiver installed shall
be reported. If no transceiver is present, then the value of
the highest rate form factor shall be reported
(QSFP28, for example).

The form factor is included in configuration data to allow
pre-configuring a device with the expected type of
transceiver ahead of deployment.  The corresponding state
leaf should reflect the actual transceiver type plugged into
the system.";
      }

      leaf ethernet-pmd-preconf {
        type identityref {
          base oc-opt-types:ETHERNET_PMD_TYPE;
        }
        description
          "The Ethernet PMD is a property of the optical transceiver
used on the port, indicating the type of physical connection.
It is included in configuration data to allow pre-configuring
a port/transceiver with the expected PMD.  The actual PMD is
indicated by the ethernet-pmd state leaf.";
      }
    }  // grouping port-transceiver-config

    grouping port-transceiver-state {
      description
        "Operational state data for client port transceivers";
      leaf present {
        type enumeration {
          enum "PRESENT" {
            value 0;
            description
              "Transceiver is present on the port";
          }
          enum "NOT_PRESENT" {
            value 1;
            description
              "Transceiver is not present on the port";
          }
        }
        description
          "Indicates whether a transceiver is present in
the specified client port.";
      }

      leaf form-factor {
        type identityref {
          base oc-opt-types:TRANSCEIVER_FORM_FACTOR_TYPE;
        }
        description
          "Indicates the type of optical transceiver used on this
port.  If the client port is built into the device and not
pluggable, then non-pluggable is the corresponding state. If
a device port supports multiple form factors (e.g. QSFP28
and QSFP+, then the value of the transceiver installed shall
be reported. If no transceiver is present, then the value of
the highest rate form factor shall be reported
(QSFP28, for example).";
      }

      leaf connector-type {
        type identityref {
          base oc-opt-types:FIBER_CONNECTOR_TYPE;
        }
        description
          "Connector type used on this port";
      }

      leaf internal-temp {
        type int16 {
          range "-40..125";
        }
        description
          "Internally measured temperature in degrees Celsius. MSA
valid range is between -40 and +125C. Accuracy shall be
better than +/- 3 degC over the whole temperature range.";
      }

      leaf vendor {
        type string {
          length "1..16";
        }
        description
          "Full name of transceiver vendor. 16-octet field that
contains ASCII characters, left-aligned and padded on the
right with ASCII spaces (20h)";
      }

      leaf vendor-part {
        type string {
          length "1..16";
        }
        description
          "Transceiver vendor's part number. 16-octet field that
contains ASCII characters, left-aligned and padded on the
right with ASCII spaces (20h). If part number is undefined,
all 16 octets = 0h";
      }

      leaf vendor-rev {
        type string {
          length "1..2";
        }
        description
          "Transceiver vendor's revision number. 2-octet field that
contains ASCII characters, left-aligned and padded on the
right with ASCII spaces (20h)";
      }

      leaf ethernet-pmd {
        type identityref {
          base oc-opt-types:ETHERNET_PMD_TYPE;
        }
        description
          "Ethernet PMD (physical medium dependent sublayer) that the
transceiver supports. The SFF/QSFP MSAs have registers for
this and CFP MSA has similar.";
      }

      leaf sonet-sdh-compliance-code {
        type identityref {
          base oc-opt-types:SONET_APPLICATION_CODE;
        }
        description
          "SONET/SDH application code supported by the port";
      }

      leaf otn-compliance-code {
        type identityref {
          base oc-opt-types:OTN_APPLICATION_CODE;
        }
        description
          "OTN application code supported by the port";
      }

      leaf serial-no {
        type string {
          length "1..16";
        }
        description
          "Transceiver serial number. 16-octet field that contains
ASCII characters, left-aligned and padded on the right with
ASCII spaces (20h). If part serial number is undefined, all
16 octets = 0h";
      }

      leaf date-code {
        type oc-yang:date-and-time;
        description
          "Representation of the transceiver date code, typically
stored as YYMMDD.  The time portion of the value is
undefined and not intended to be read.";
      }

      leaf fault-condition {
        type boolean;
        description
          "Indicates if a fault condition exists in the transceiver";
      }

      uses optical-power-state;
    }  // grouping port-transceiver-state

    grouping port-transceiver-top {
      description
        "Top-level grouping for client port transceiver data";
      container transceiver {
        description
          "Top-level container for client port transceiver data";
        container config {
          description
            "Configuration data for client port transceivers";
          uses port-transceiver-config;
        }  // container config

        container state {
          config false;
          description
            "Operational state data for client port transceivers";
          uses port-transceiver-config;

          uses port-transceiver-state;
        }  // container state

        uses physical-channel-top;
      }  // container transceiver
    }  // grouping port-transceiver-top

    augment /oc-platform:components/oc-platform:component {
      description
        "Adding transceiver data to physical inventory";
      uses port-transceiver-top {
        when
          "current()/oc-platform:state/oc-platform:type = 'TRANSCEIVER'" {
          description
            "Augment is active when component is of type TRANSCEIVER";
        }
      }
    }

    augment /oc-if:interfaces/oc-if:interface/oc-if:state {
      description
        "Adds a reference from the base interface to its corresponding
physical channels.";
      leaf-list physical-channel {
        type leafref {
          path "/oc-platform:components/oc-platform:component[oc-platform:name=current()/../oc-port:hardware-port]/oc-transceiver:transceiver/oc-transceiver:physical-channels/oc-transceiver:channel/oc-transceiver:index";
        }
        description
          "For a channelized interface, list of references to the
physical channels (lanes) corresponding to the interface.";
      }
    }
  }  // module openconfig-platform-transceiver