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Add AXI bus objects

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This commit is contained in:
Alex Forencich
2021-03-06 16:26:51 -08:00
parent c18fdd6e22
commit 69717c1698
12 changed files with 269 additions and 100 deletions
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28
cocotbext/axi/axi_master.py
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@@ -49,19 +49,17 @@ AxiReadResp = namedtuple("AxiReadResp", ["address", "data", "resp", "user"])
class AxiMasterWrite(Reset):
def __init__(self, entity, name, clock, reset=None, max_burst_len=256):
self.log = logging.getLogger(f"cocotb.{entity._name}.{name}")
def __init__(self, bus, clock, reset=None, max_burst_len=256):
self.log = logging.getLogger(f"cocotb.{bus.aw._entity._name}.{bus.aw._name}")
self.log.info("AXI master (write)")
self.log.info("cocotbext-axi version %s", __version__)
self.log.info("Copyright (c) 2020 Alex Forencich")
self.log.info("https://github.com/alexforencich/cocotbext-axi")
self.reset = reset
self.aw_channel = AxiAWSource(entity, name, clock, reset)
self.w_channel = AxiWSource(entity, name, clock, reset)
self.b_channel = AxiBSink(entity, name, clock, reset)
self.aw_channel = AxiAWSource(bus.aw, clock, reset)
self.w_channel = AxiWSource(bus.w, clock, reset)
self.b_channel = AxiBSink(bus.b, clock, reset)
self.write_command_queue = deque()
self.write_command_sync = Event()
@@ -404,18 +402,16 @@ class AxiMasterWrite(Reset):
class AxiMasterRead(Reset):
def __init__(self, entity, name, clock, reset=None, max_burst_len=256):
self.log = logging.getLogger(f"cocotb.{entity._name}.{name}")
def __init__(self, bus, clock, reset=None, max_burst_len=256):
self.log = logging.getLogger(f"cocotb.{bus.ar._entity._name}.{bus.ar._name}")
self.log.info("AXI master (read)")
self.log.info("cocotbext-axi version %s", __version__)
self.log.info("Copyright (c) 2020 Alex Forencich")
self.log.info("https://github.com/alexforencich/cocotbext-axi")
self.reset = reset
self.ar_channel = AxiARSource(entity, name, clock, reset)
self.r_channel = AxiRSink(entity, name, clock, reset)
self.ar_channel = AxiARSource(bus.ar, clock, reset)
self.r_channel = AxiRSink(bus.r, clock, reset)
self.read_command_queue = deque()
self.read_command_sync = Event()
@@ -741,12 +737,12 @@ class AxiMasterRead(Reset):
class AxiMaster:
def __init__(self, entity, name, clock, reset=None, max_burst_len=256):
def __init__(self, bus, clock, reset=None, max_burst_len=256):
self.write_if = None
self.read_if = None
self.write_if = AxiMasterWrite(entity, name, clock, reset, max_burst_len)
self.read_if = AxiMasterRead(entity, name, clock, reset, max_burst_len)
self.write_if = AxiMasterWrite(bus.write, clock, reset, max_burst_len)
self.read_if = AxiMasterRead(bus.read, clock, reset, max_burst_len)
def init_read(self, address, length, arid=None, burst=AxiBurstType.INCR, size=None,
lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, event=None):