Support Microseconds unit in tlBMC Entity-Manager parser and HFT adapter

Add UNIT_MICROSECONDS to SensorUnit enum in tlBMC sensor.proto, support 'Microseconds' string in Entity-Manager JSON configuration parsing, and map it to SENSOR_UNIT_MICROSECONDS / SENSOR_TYPE_TIME in the HFT adapter.

Google-Bug-Id:555854611
PiperOrigin-RevId: 975414473
Change-Id: Ie38d5833f11ab3c5b07fb4d166e9631d654411f7

tlbmc/configs/entity_config_json_impl.cc

diff --git a/tlbmc/configs/entity_config_json_impl.cc b/tlbmc/configs/entity_config_json_impl.cc
index 564f7e1..34d4a12 100644
--- a/tlbmc/configs/entity_config_json_impl.cc
+++ b/tlbmc/configs/entity_config_json_impl.cc
@@ -144,7 +144,7 @@
 constexpr absl::string_view kRedfishHiddenKeyword = "RedfishHidden";
 
 // from google3/third_party/openbmc_entity_manager/schemas/legacy.json
-constexpr std::array<std::pair<std::string_view, SensorUnit>, 10>
+constexpr std::array<std::pair<std::string_view, SensorUnit>, 11>
     kSupportedSensorUnits = {{
         // go/keep-sorted start
         {"Amperes", SensorUnit::UNIT_AMPERE},
@@ -152,6 +152,7 @@
         {"Count", SensorUnit::UNIT_COUNT},
         {"DegreesC", SensorUnit::UNIT_DEGREE_CELSIUS},
         {"Joules", SensorUnit::UNIT_JOULES},
+        {"Microseconds", SensorUnit::UNIT_MICROSECONDS},
         {"Pascals", SensorUnit::UNIT_PASCAL},
         {"Percent", SensorUnit::UNIT_PERCENT},
         {"RPMS", SensorUnit::UNIT_REVOLUTION_PER_MINUTE},

tlbmc/sensor.proto

diff --git a/tlbmc/sensor.proto b/tlbmc/sensor.proto
index c79c6af..8d23800 100644
--- a/tlbmc/sensor.proto
+++ b/tlbmc/sensor.proto
@@ -25,6 +25,7 @@
   UNIT_PASCAL = 9;
   UNIT_GIGABITS_PER_SECOND = 10;
   UNIT_BINARY = 11;
+  UNIT_MICROSECONDS = 12;
 }
 
 message SensorValue {

tlbmc/sensor_identifier.proto

diff --git a/tlbmc/sensor_identifier.proto b/tlbmc/sensor_identifier.proto
index 646f0bb..1a9fe3b 100644
--- a/tlbmc/sensor_identifier.proto
+++ b/tlbmc/sensor_identifier.proto
@@ -35,6 +35,7 @@
   SENSOR_UNIT_PRESENCE = 12;
   SENSOR_UNIT_COUNT = 13;
   SENSOR_UNIT_PASCAL = 14;
+  SENSOR_UNIT_MICROSECONDS = 15;
 }
 
 enum SensorSource {

tlbmc/store/store_hft_adapter.cc

diff --git a/tlbmc/store/store_hft_adapter.cc b/tlbmc/store/store_hft_adapter.cc
index e019031..c67fa96 100644
--- a/tlbmc/store/store_hft_adapter.cc
+++ b/tlbmc/store/store_hft_adapter.cc
@@ -287,6 +287,8 @@
       return milotic_hft::SENSOR_UNIT_JOULES;
     case UNIT_PASCAL:
       return milotic_hft::SENSOR_UNIT_PASCAL;
+    case UNIT_MICROSECONDS:
+      return milotic_hft::SENSOR_UNIT_MICROSECONDS;
     default:
       return milotic_hft::SENSOR_UNIT_UNSPECIFIED;
   }
@@ -312,6 +314,8 @@
       return milotic_hft::SENSOR_TYPE_ENERGY;
     case UNIT_PASCAL:
       return milotic_hft::SENSOR_TYPE_ALTITUDE;
+    case UNIT_MICROSECONDS:
+      return milotic_hft::SENSOR_TYPE_TIME;
     default:
       return milotic_hft::SENSOR_TYPE_UNSPECIFIED;
   }