Add blink support to Lenovo "IPMI" support

Hop over to redfish to implement blink support
in the identify LED.

Change-Id: I9f304c3a135b7b00c6e20167940f86f5f375b5ad

pyghmi/ipmi/command.py

@@ -551,7 +551,7 @@ class Command(object):
         return {'powerstate': self._get_power_state(
             bridge_request=bridge_request)}
 
-    def set_identify(self, on=True, duration=None):
+    def set_identify(self, on=True, duration=None, blink=False):
         """Request identify light
 
         Request the identify light to turn off, on for a duration,
@@ -563,10 +563,14 @@ class Command(object):
         """
         self.oem_init()
         try:
-            self._oem.set_identify(on, duration)
+            self._oem.set_identify(on, duration, blink)
+            return
+        except exc.BypassGenericBehavior:
             return
         except exc.UnsupportedFunctionality:
             pass
+        if blink:
+            raise exc.IpmiException('Blink not supported with generic IPMI')
         if duration is not None:
             duration = int(duration)
             if duration > 255:

pyghmi/ipmi/oem/generic.py

@@ -377,7 +377,7 @@ class OEMHandler(object):
     def list_media(self):
         raise exc.UnsupportedFunctionality()
 
-    def set_identify(self, on, duration):
+    def set_identify(self, on, duration, blink):
         """Provide an OEM override for set_identify
 
         Some systems may require an override for set identify.

pyghmi/ipmi/oem/lenovo/handler.py

@@ -671,9 +671,11 @@ class OEMHandler(generic.OEMHandler):
                                         led_status_default)
             yield (name, {'status': status})
 
-    def set_identify(self, on, duration):
+    def set_identify(self, on, duration, blink):
         if on and not duration and self.is_sd350:
             self.ipmicmd.xraw_command(netfn=0x3a, command=6, data=(1, 1))
+        elif self.has_xcc:
+            self.immhandler.set_identify(on, duration, blink)
         else:
             raise pygexc.UnsupportedFunctionality()
 

pyghmi/ipmi/oem/lenovo/imm.py

@@ -968,6 +968,14 @@ class XCCClient(IMMClient):
                 fru['manufacturer'] = memi['memory_manufacturer']
                 break
 
+    def set_identify(self, on, duration, blink):
+        if blink:
+            self.grab_redfish_response_with_status(
+                '/redfish/v1/Systems/1',
+                {'IndicatorLED': 'Blinking'},
+                method='PATCH')
+            raise pygexc.BypassGenericBehavior()
+
     def get_description(self):
         dsc = self.wc.grab_json_response('/DeviceDescription.json')
         dsc = dsc[0]