Add power supply information

Use ps1_type and ps1_status to report power injector type
(e.g., cdp negotiated, inline power, etc.) and status
(e.g., full power, reduced power)

Info/Layer2/Aironet.pm

@@ -60,7 +60,8 @@ $VERSION = '3.26';
     %SNMP::Info::CiscoConfig::GLOBALS,
     %SNMP::Info::CDP::GLOBALS,
     'serial' => 'entPhysicalSerialNum.1',
-    'descr'  => 'sysDescr'
+    'descr'  => 'sysDescr',
+    'ps1_type' => 'cpoePdCurrentPowerSource'
 );
 
 %FUNCS = (
@@ -97,6 +98,7 @@ $VERSION = '3.26';
     'CISCO-DOT11-ASSOCIATION-MIB'         => 'cDot11ClientSubIfIndex',
     'CISCO-DOT11-SSID-SECURITY-MIB'       => 'cdot11SecVlanNameId',
     'CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB' => 'cviRoutedVlanIfIndex',
+    'CISCO-POE-PD-MIB'                    => 'cpoePdCurrentPowerSource',
 );
 
 %MUNGE = (
@@ -457,6 +459,18 @@ sub i_ssidmac {
     return $i_ssidmac;
 }
 
+###
+# PoE status.  The ps1_type is the PoE injector type, which is just
+# a scalar; the status is a little more complex.
+sub ps1_status {
+    my $aironet = shift;
+    my $idx = $aironet->cpoePdCurrentPowerLevel();
+    my $mw = $aironet->cpoePdSupportedPower( $idx );
+    my $descr = $aironet->cpoePdSupportedPowerMode( $idx );
+
+    return sprintf( "%.2fW (%s)", $mw->{$idx} * 0.001, $descr->{$idx} );
+}
+
 1;
 __END__