litesata/frontend/crossbar.py

   1 from litesata.common import *
   2 from litesata.frontend.common import *
   3 from litesata.frontend.arbiter import LiteSATAArbiter
   4
   5 class LiteSATACrossbar(Module):
   6         def __init__(self, core):
   7                 self.users = []
   8                 self.master = LiteSATAMasterPort(32)
   9                 self.comb += [
  10                         self.master.source.connect(core.sink),
  11                         core.source.connect(self.master.sink)
  12                 ]
  13
  14         def get_port(self):
  15                 port = LiteSATAUserPort(32)
  16                 self.users += [port]
  17                 return port
  18
  19         def get_ports(self, n):
  20                 ports = []
  21                 for i in range(n):
  22                         ports.append(self.get_port())
  23                 return ports
  24
  25         def do_finalize(self):
  26                 self.arbiter = LiteSATAArbiter(self.users, self.master)