Restructure rtio.cri to follow nMigen convention

README.md

@@ -31,8 +31,8 @@ $ python -m rtio.test.sed.output_network
 - - [ ] `rtio.rtlink`
 - - [x] `rtio.sed.output_network` - Sorting network (high priority)
 - - [ ] `rtio.sed.output_driver`
-- [ ] Restructure to code to follow nMigen convention and re-validate existing assertions
-- - [ ] `rtio.cri` (`Interface` and `CRIDecoder` only)
+- [ ] Restructure to code to follow nMigen convention and re-validate existing assertions (if any)
+- - [x] `rtio.cri` (`Interface` and `CRIDecoder` only)
 - - [ ] `rtio.rtlink`
 - - [x] `rtio.sed.output_network`
 - - [ ] `rtio.sed.output_driver`

rtio/cri.py

@@ -59,16 +59,22 @@ class Interface(Record):
 
 class CRIDecoder(Elaboratable):
     def __init__(self, slaves=2, master=None, mode="async", enable_routing=False):
-        m = Module()
-        self.m = m
         if isinstance(slaves, int):
             slaves = [Interface() for _ in range(slaves)]
         if master is None:
             master = Interface()
         self.slaves = slaves
         self.master = master
+        self.mode = mode
+        self.enable_routing = enable_routing
 
-        # # #
+    def elaborate(self, platform):
+        m = Module()
+
+        slaves = self.slaves
+        master = self.master
+        mode = self.mode
+        enable_routing = self.enable_routing
 
         # routing
         if enable_routing:
@@ -114,8 +120,7 @@ class CRIDecoder(Elaboratable):
                         if direction == DIR_FANIN:
                             m.d.comb += getattr(master, name).eq(getattr(slave, name))
 
-    def elaborate(self, platform):
-        return self.m
+        return m
 
 # Skip CRISwitch for now (depends on AutoCSR)