Clean up and lint removal

cocotbext/axi/__init__.py

@@ -24,7 +24,7 @@ THE SOFTWARE.
 
 from .version import __version__
 
-from .constants import *
+from .constants import AxiBurstType, AxiBurstSize, AxiLockType, AxiCacheBit, AxiProt, AxiResp
 
 from .axis import AxiStreamFrame, AxiStreamSource, AxiStreamSink
 
@@ -33,4 +33,3 @@ from .axil_ram import AxiLiteRamWrite, AxiLiteRamRead, AxiLiteRam
 
 from .axi_master import AxiMasterWrite, AxiMasterRead, AxiMaster
 from .axi_ram import AxiRamWrite, AxiRamRead, AxiRam
-

cocotbext/axi/axi_channels.py

@@ -26,36 +26,37 @@ from .stream import define_stream
 
 # Write address channel
 AxiAWTransaction, AxiAWSource, AxiAWSink, AxiAWMonitor = define_stream("AxiAW",
-    signals = ["awid", "awaddr", "awlen", "awsize", "awburst", "awprot", "awvalid", "awready"],
+    signals=["awid", "awaddr", "awlen", "awsize", "awburst", "awprot", "awvalid", "awready"],
-    optional_signals = ["awlock", "awcache", "awqos", "awregion", "awuser"],
+    optional_signals=["awlock", "awcache", "awqos", "awregion", "awuser"],
-    signal_widths = {"awlen": 8, "awsize": 3, "awburst": 2, "awlock": 1, "awcache": 4, "awprot": 3, "awqos": 4, "awregion": 4}
+    signal_widths={"awlen": 8, "awsize": 3, "awburst": 2, "awlock": 1,
+        "awcache": 4, "awprot": 3, "awqos": 4, "awregion": 4}
 )
 
 # Write data channel
 AxiWTransaction, AxiWSource, AxiWSink, AxiWMonitor = define_stream("AxiW",
-    signals = ["wdata", "wstrb", "wlast", "wvalid", "wready"],
+    signals=["wdata", "wstrb", "wlast", "wvalid", "wready"],
-    optional_signals = ["wuser"],
+    optional_signals=["wuser"],
-    signal_widths = {"wlast": 1}
+    signal_widths={"wlast": 1}
 )
 
 # Write response channel
 AxiBTransaction, AxiBSource, AxiBSink, AxiBMonitor = define_stream("AxiB",
-    signals = ["bid", "bresp", "bvalid", "bready"],
+    signals=["bid", "bresp", "bvalid", "bready"],
-    optional_signals = ["buser"],
+    optional_signals=["buser"],
-    signal_widths = {"bresp": 2}
+    signal_widths={"bresp": 2}
 )
 
 # Read address channel
 AxiARTransaction, AxiARSource, AxiARSink, AxiARMonitor = define_stream("AxiAR",
-    signals = ["arid", "araddr", "arlen", "arsize", "arburst", "arprot", "arvalid", "arready"],
+    signals=["arid", "araddr", "arlen", "arsize", "arburst", "arprot", "arvalid", "arready"],
-    optional_signals = ["arlock", "arcache", "arqos", "arregion", "aruser"],
+    optional_signals=["arlock", "arcache", "arqos", "arregion", "aruser"],
-    signal_widths = {"arlen": 8, "arsize": 3, "arburst": 2, "arlock": 1, "arcache": 4, "arprot": 3, "arqos": 4, "arregion": 4}
+    signal_widths={"arlen": 8, "arsize": 3, "arburst": 2, "arlock": 1,
+        "arcache": 4, "arprot": 3, "arqos": 4, "arregion": 4}
 )
 
 # Read data channel
 AxiRTransaction, AxiRSource, AxiRSink, AxiRMonitor = define_stream("AxiR",
-    signals = ["rid", "rdata", "rresp", "rlast", "rvalid", "rready"],
+    signals=["rid", "rdata", "rresp", "rlast", "rvalid", "rready"],
-    optional_signals = ["ruser"],
+    optional_signals=["ruser"],
-    signal_widths = {"rresp": 2, "rlast": 1}
+    signal_widths={"rresp": 2, "rlast": 1}
 )
-

cocotbext/axi/axi_master.py

@@ -22,15 +22,15 @@ THE SOFTWARE.
 
 """
 
-import cocotb
-from cocotb.triggers import RisingEdge, Event
-from cocotb.log import SimLog
-
 from collections import deque
 
+import cocotb
+from cocotb.triggers import Event
+from cocotb.log import SimLog
+
 from .version import __version__
-from .constants import *
+from .constants import AxiBurstType, AxiLockType, AxiProt, AxiResp
-from .axi_channels import *
+from .axi_channels import AxiAWSource, AxiWSource, AxiBSink, AxiARSource, AxiRSink
 
 
 class AxiMasterWrite(object):
@@ -81,7 +81,8 @@ class AxiMasterWrite(object):
         cocotb.fork(self._process_write())
         cocotb.fork(self._process_write_resp())
 
-    def init_write(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
+    def init_write(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
         if token is not None:
             if token in self.active_tokens:
                 raise Exception("Token is not unique")
@@ -130,35 +131,43 @@ class AxiMasterWrite(object):
             return resp
         return None
 
-    async def write(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         token = object()
         self.init_write(address, data, burst, size, lock, cache, prot, qos, region, user, token)
         await self.wait_for_token(token)
         return self.get_write_resp(token)[1:3]
 
-    async def write_words(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_words(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         words = data
         data = bytearray()
         for w in words:
             data.extend(w.to_bytes(ws, 'little'))
         await self.write(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_dwords(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_dwords(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write_words(address, data, 4, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_qwords(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_qwords(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write_words(address, data, 8, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_byte(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_byte(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write(address, [data], burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_word(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_word(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write_words(address, [data], ws, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_dword(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_dword(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write_dwords(address, [data], burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_qword(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_qword(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         await self.write_qwords(address, [data], burst, size, lock, cache, prot, qos, region, user)
 
     async def _process_write(self):
@@ -167,7 +176,7 @@ class AxiMasterWrite(object):
                 self.write_command_sync.clear()
                 await self.write_command_sync.wait()
 
-            address, data, burst, size, lock, cache, prot, qos, region, user, token = self.write_command_queue.popleft()
+            addr, data, burst, size, lock, cache, prot, qos, region, user, token = self.write_command_queue.popleft()
 
             num_bytes = self.byte_width
 
@@ -177,13 +186,13 @@ class AxiMasterWrite(object):
                 num_bytes = 2**size
                 assert 0 < num_bytes <= self.byte_width
 
-            aligned_addr = (address // num_bytes) * num_bytes
+            aligned_addr = (addr // num_bytes) * num_bytes
-            word_addr = (address // self.byte_width) * self.byte_width
+            word_addr = (addr // self.byte_width) * self.byte_width
 
-            start_offset = address % self.byte_width
+            start_offset = addr % self.byte_width
-            end_offset = ((address + len(data) - 1) % self.byte_width) + 1
+            end_offset = ((addr + len(data) - 1) % self.byte_width) + 1
 
-            cycles = (len(data) + (address % num_bytes) + num_bytes-1) // num_bytes
+            cycles = (len(data) + (addr % num_bytes) + num_bytes-1) // num_bytes
 
             cur_addr = aligned_addr
             offset = 0
@@ -194,7 +203,8 @@ class AxiMasterWrite(object):
             burst_list = []
             burst_length = 0
 
-            self.log.info(f"Write start addr: {address:#010x} prot: {prot} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Write start addr: 0x%08x prot: %s data: %s",
+                addr, prot, ' '.join((f'{c:02x}' for c in data)))
 
             for k in range(cycles):
                 start = cycle_offset
@@ -222,8 +232,10 @@ class AxiMasterWrite(object):
                     transfer_count += 1
                     n = 0
 
-                    burst_length = min(cycles-k, min(max(self.max_burst_len, 1), 256)) # max len
+                    # split on burst length
-                    burst_length = (min(burst_length*num_bytes, 0x1000-(cur_addr&0xfff))+num_bytes-1)//num_bytes # 4k align
+                    burst_length = min(cycles-k, min(max(self.max_burst_len, 1), 256))
+                    # split on 4k address boundary
+                    burst_length = (min(burst_length*num_bytes, 0x1000-(cur_addr & 0xfff))+num_bytes-1)//num_bytes
 
                     burst_list.append((awid, burst_length))
 
@@ -242,7 +254,8 @@ class AxiMasterWrite(object):
 
                     await self.aw_channel.drive(aw)
 
-                    self.log.info(f"Write burst start awid {awid:#x} awaddr: {cur_addr:#010x} awlen: {burst_length-1} awsize: {size}")
+                    self.log.info("Write burst start awid: 0x%x awaddr: 0x%08x awlen: %d awsize: %d awprot: %s",
+                        awid, cur_addr, burst_length-1, size, prot)
 
                 n += 1
 
@@ -256,7 +269,7 @@ class AxiMasterWrite(object):
                 cur_addr += num_bytes
                 cycle_offset = (cycle_offset + num_bytes) % self.byte_width
 
-            self.int_write_resp_command_queue.append((address, len(data), size, cycles, prot, burst_list, token))
+            self.int_write_resp_command_queue.append((addr, len(data), size, cycles, prot, burst_list, token))
             self.int_write_resp_command_sync.set()
 
     async def _process_write_resp(self):
@@ -298,9 +311,10 @@ class AxiMasterWrite(object):
                 self.id_queue.append(bid)
                 self.id_sync.set()
 
-                self.log.info(f"Write burst complete bid {burst_id:#x} bresp: {burst_resp!s}")
+                self.log.info("Write burst complete bid: 0x%x bresp: %s", burst_id, burst_resp)
 
-            self.log.info(f"Write complete addr: {addr:#010x} prot: {prot} resp: {resp!s} length: {length}")
+            self.log.info("Write complete addr: 0x%08x prot: %s resp: %s length: %d",
+                addr, prot, resp, length)
 
             self.write_resp_queue.append((addr, length, resp, user, token))
             self.write_resp_sync.set()
@@ -349,7 +363,8 @@ class AxiMasterRead(object):
         cocotb.fork(self._process_read())
         cocotb.fork(self._process_read_resp())
 
-    def init_read(self, address, length, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
+    def init_read(self, address, length, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
         if token is not None:
             if token in self.active_tokens:
                 raise Exception("Token is not unique")
@@ -398,35 +413,43 @@ class AxiMasterRead(object):
             return resp
         return None
 
-    async def read(self, address, length, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read(self, address, length, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         token = object()
         self.init_read(address, length, burst, size, lock, cache, prot, qos, region, user, token)
         await self.wait_for_token(token)
         return self.get_read_data(token)[1:3]
 
-    async def read_words(self, address, count, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_words(self, address, count, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         data = await self.read(address, count*ws, burst, size, lock, cache, prot, qos, region, user)
         words = []
         for k in range(count):
             words.append(int.from_bytes(data[0][ws*k:ws*(k+1)], 'little'))
         return words
 
-    async def read_dwords(self, address, count, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_dwords(self, address, count, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_words(address, count, 4, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_qwords(self, address, count, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_qwords(self, address, count, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_words(address, count, 8, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_byte(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_byte(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return (await self.read(address, 1, burst, size, lock, cache, prot, qos, region, user))[0]
 
-    async def read_word(self, address, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_word(self, address, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return (await self.read_words(address, 1, ws, burst, size, lock, cache, prot, qos, region, user))[0]
 
-    async def read_dword(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_dword(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return (await self.read_dwords(address, 1, burst, size, lock, cache, prot, qos, region, user))[0]
 
-    async def read_qword(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_qword(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return (await self.read_qwords(address, 1, burst, size, lock, cache, prot, qos, region, user))[0]
 
     async def _process_read(self):
@@ -435,7 +458,7 @@ class AxiMasterRead(object):
                 self.read_command_sync.clear()
                 await self.read_command_sync.wait()
 
-            address, length, burst, size, lock, cache, prot, qos, region, user, token = self.read_command_queue.popleft()
+            addr, length, burst, size, lock, cache, prot, qos, region, user, token = self.read_command_queue.popleft()
 
             num_bytes = self.byte_width
 
@@ -445,10 +468,9 @@ class AxiMasterRead(object):
                 num_bytes = 2**size
                 assert 0 < num_bytes <= self.byte_width
 
-            aligned_addr = (address // num_bytes) * num_bytes
+            aligned_addr = (addr // num_bytes) * num_bytes
-            word_addr = (address // self.byte_width) * self.byte_width
 
-            cycles = (length + num_bytes-1 + (address % num_bytes)) // num_bytes
+            cycles = (length + num_bytes-1 + (addr % num_bytes)) // num_bytes
 
             burst_list = []
 
@@ -457,6 +479,8 @@ class AxiMasterRead(object):
 
             burst_length = 0
 
+            self.log.info("Read start addr: 0x%08x prot: %s", addr, prot)
+
             for k in range(cycles):
 
                 n += 1
@@ -469,8 +493,10 @@ class AxiMasterRead(object):
 
                     n = 0
 
-                    burst_length = min(cycles-k, min(max(self.max_burst_len, 1), 256)) # max len
+                    # split on burst length
-                    burst_length = (min(burst_length*num_bytes, 0x1000-(cur_addr&0xfff))+num_bytes-1)//num_bytes # 4k align
+                    burst_length = min(cycles-k, min(max(self.max_burst_len, 1), 256))
+                    # split on 4k address boundary
+                    burst_length = (min(burst_length*num_bytes, 0x1000-(cur_addr & 0xfff))+num_bytes-1)//num_bytes
 
                     burst_list.append((arid, burst_length))
 
@@ -489,11 +515,12 @@ class AxiMasterRead(object):
 
                     await self.ar_channel.drive(ar)
 
-                    self.log.info(f"Read burst start arid {arid:#x} araddr: {cur_addr:#010x} arlen: {burst_length-1} arsize: {size}")
+                    self.log.info("Read burst start arid: 0x%x araddr: 0x%08x arlen: %d arsize: %d arprot: %s",
+                        arid, cur_addr, burst_length-1, size, prot)
 
                 cur_addr += num_bytes
 
-            self.int_read_resp_command_queue.append((address, length, size, cycles, prot, burst_list, token))
+            self.int_read_resp_command_queue.append((addr, length, size, cycles, prot, burst_list, token))
             self.int_read_resp_command_sync.set()
 
     async def _process_read_resp(self):
@@ -510,7 +537,6 @@ class AxiMasterRead(object):
             word_addr = (addr // self.byte_width) * self.byte_width
 
             start_offset = addr % self.byte_width
-            end_offset = ((addr + length - 1) % self.byte_width) + 1
 
             cycle_offset = aligned_addr - word_addr
             data = bytearray()
@@ -566,11 +592,12 @@ class AxiMasterRead(object):
                 self.id_queue.append(rid)
                 self.id_sync.set()
 
-                self.log.info(f"Read burst complete rid {cycle_id:#x} rresp: {resp!s}")
+                self.log.info("Read burst complete rid: 0x%x rresp: %s", cycle_id, resp)
 
             data = data[:length]
 
-            self.log.info(f"Read complete addr: {addr:#010x} prot: {prot} resp: {resp!s} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Read complete addr: 0x%08x prot: %s resp: %s data: %s",
+                addr, prot, resp, ' '.join((f'{c:02x}' for c in data)))
 
             self.read_data_queue.append((addr, data, resp, user, token))
             self.read_data_sync.set()
@@ -587,10 +614,12 @@ class AxiMaster(object):
         self.write_if = AxiMasterWrite(entity, name, clock, reset)
         self.read_if = AxiMasterRead(entity, name, clock, reset)
 
-    def init_read(self, address, length, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
+    def init_read(self, address, length, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
         self.read_if.init_read(address, length, burst, size, lock, cache, prot, qos, region, user, token)
 
-    def init_write(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
+    def init_write(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0, token=None):
         self.write_if.init_write(address, data, burst, size, lock, cache, prot, qos, region, user, token)
 
     def idle(self):
@@ -619,52 +648,66 @@ class AxiMaster(object):
     def get_write_resp(self, token=None):
         return self.write_if.get_write_resp(token)
 
-    async def read(self, address, length, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read(self, address, length, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read(address, length, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_words(self, address, count, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_words(self, address, count, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_words(address, count, ws, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_dwords(self, address, count, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_dwords(self, address, count, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_dwords(address, count, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_qwords(self, address, count, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_qwords(self, address, count, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_qwords(address, count, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_byte(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_byte(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_byte(address, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_word(self, address, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_word(self, address, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_word(address, ws, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_dword(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_dword(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_dword(address, burst, size, lock, cache, prot, qos, region, user)
 
-    async def read_qword(self, address, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def read_qword(self, address, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.read_if.read_qword(address, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_words(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_words(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_words(address, data, ws, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_dwords(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_dwords(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_dwords(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_qwords(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_qwords(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_qwords(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_byte(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_byte(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_byte(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_word(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_word(self, address, data, ws=2, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_word(address, data, ws, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_dword(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_dword(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_dword(address, data, burst, size, lock, cache, prot, qos, region, user)
 
-    async def write_qword(self, address, data, burst=AxiBurstType.INCR, size=None, lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
+    async def write_qword(self, address, data, burst=AxiBurstType.INCR, size=None,
+            lock=AxiLockType.NORMAL, cache=0b0011, prot=AxiProt.NONSECURE, qos=0, region=0, user=0):
         return await self.write_if.write_qword(address, data, burst, size, lock, cache, prot, qos, region, user)
-
-

cocotbext/axi/axi_ram.py

@@ -22,16 +22,14 @@ THE SOFTWARE.
 
 """
 
+import mmap
+
 import cocotb
-from cocotb.triggers import Event
 from cocotb.log import SimLog
 
-import mmap
-from collections import deque
-
 from .version import __version__
-from .constants import *
+from .constants import AxiBurstType, AxiProt, AxiResp
-from .axi_channels import *
+from .axi_channels import AxiAWSink, AxiWSink, AxiBSource, AxiARSink, AxiRSource
 from .utils import hexdump, hexdump_str
 
 
@@ -96,7 +94,8 @@ class AxiRamWrite(object):
             burst = int(aw.awburst)
             prot = AxiProt(int(aw.awprot))
 
-            self.log.info(f"Write burst awid: {awid:#x} awaddr: {addr:#010x} awlen: {length} awsize: {size} awprot: {prot}")
+            self.log.info("Write burst awid: 0x%x awaddr: 0x%08x awlen: %d awsize: %d awprot: %s",
+                awid, addr, length, size, prot)
 
             num_bytes = 2**size
             assert 0 < num_bytes <= self.byte_width
@@ -112,7 +111,7 @@ class AxiRamWrite(object):
 
             if burst == AxiBurstType.INCR:
                 # check 4k boundary crossing
-                assert 0x1000-(aligned_addr&0xfff) >= transfer_size
+                assert 0x1000-(aligned_addr & 0xfff) >= transfer_size
 
             cur_addr = aligned_addr
 
@@ -132,7 +131,8 @@ class AxiRamWrite(object):
 
                 data = data.to_bytes(self.byte_width, 'little')
 
-                self.log.debug(f"Write word awid: {awid:#x} addr: {cur_addr:#010x} wstrb: {strb:#04x} data: {' '.join((f'{c:02x}' for c in data))}")
+                self.log.debug("Write word awid: 0x%x addr: 0x%08x wstrb: 0x%02x data: %s",
+                    awid, cur_addr, strb, ' '.join((f'{c:02x}' for c in data)))
 
                 for i in range(self.byte_width):
                     if strb & (1 << i):
@@ -171,9 +171,6 @@ class AxiRamRead(object):
         self.ar_channel = AxiARSink(entity, name, clock, reset)
         self.r_channel = AxiRSource(entity, name, clock, reset)
 
-        self.int_read_resp_command_queue = deque()
-        self.int_read_resp_command_sync = Event()
-
         self.in_flight_operations = 0
 
         self.width = len(self.r_channel.bus.rdata)
@@ -212,7 +209,8 @@ class AxiRamRead(object):
             burst = int(ar.arburst)
             prot = AxiProt(ar.arprot)
 
-            self.log.info(f"Read burst arid: {arid:#x} araddr: {addr:#010x} arlen: {length} arsize: {size} arprot: {prot}")
+            self.log.info("Read burst arid: 0x%x araddr: 0x%08x arlen: %d arsize: %d arprot: %s",
+                arid, addr, length, size, prot)
 
             num_bytes = 2**size
             assert 0 < num_bytes <= self.byte_width
@@ -228,7 +226,7 @@ class AxiRamRead(object):
 
             if burst == AxiBurstType.INCR:
                 # check 4k boundary crossing
-                assert 0x1000-(aligned_addr&0xfff) >= transfer_size
+                assert 0x1000-(aligned_addr & 0xfff) >= transfer_size
 
             cur_addr = aligned_addr
 
@@ -247,7 +245,8 @@ class AxiRamRead(object):
 
                 self.r_channel.send(r)
 
-                self.log.debug(f"Read word arid: {arid:#x} addr: {cur_addr:#010x} data: {' '.join((f'{c:02x}' for c in data))}")
+                self.log.debug("Read word awid: 0x%x addr: 0x%08x data: %s",
+                    arid, cur_addr, ' '.join((f'{c:02x}' for c in data)))
 
                 if burst != AxiBurstType.FIXED:
                     cur_addr += num_bytes
@@ -284,4 +283,3 @@ class AxiRam(object):
 
     def hexdump_str(self, address, length, prefix=""):
         return hexdump_str(self.mem, address, length, prefix=prefix)
-

cocotbext/axi/axil_channels.py

@@ -26,30 +26,29 @@ from .stream import define_stream
 
 # Write address channel
 AxiLiteAWTransaction, AxiLiteAWSource, AxiLiteAWSink, AxiLiteAWMonitor = define_stream("AxiLiteAW",
-    signals = ["awaddr", "awprot", "awvalid", "awready"],
+    signals=["awaddr", "awprot", "awvalid", "awready"],
-    signal_widths = {"awprot": 3}
+    signal_widths={"awprot": 3}
 )
 
 # Write data channel
 AxiLiteWTransaction, AxiLiteWSource, AxiLiteWSink, AxiLiteWMonitor = define_stream("AxiLiteW",
-    signals = ["wdata", "wstrb", "wvalid", "wready"]
+    signals=["wdata", "wstrb", "wvalid", "wready"]
 )
 
 # Write response channel
 AxiLiteBTransaction, AxiLiteBSource, AxiLiteBSink, AxiLiteBMonitor = define_stream("AxiLiteB",
-    signals = ["bresp", "bvalid", "bready"],
+    signals=["bresp", "bvalid", "bready"],
-    signal_widths = {"bresp": 2}
+    signal_widths={"bresp": 2}
 )
 
 # Read address channel
 AxiLiteARTransaction, AxiLiteARSource, AxiLiteARSink, AxiLiteARMonitor = define_stream("AxiLiteAR",
-    signals = ["araddr", "arprot", "arvalid", "arready"],
+    signals=["araddr", "arprot", "arvalid", "arready"],
-    signal_widths = {"arprot": 3}
+    signal_widths={"arprot": 3}
 )
 
 # Read data channel
 AxiLiteRTransaction, AxiLiteRSource, AxiLiteRSink, AxiLiteRMonitor = define_stream("AxiLiteR",
-    signals = ["rdata", "rresp", "rvalid", "rready"],
+    signals=["rdata", "rresp", "rvalid", "rready"],
-    signal_widths = {"rresp": 2}
+    signal_widths={"rresp": 2}
 )
-

cocotbext/axi/axil_master.py

@@ -22,15 +22,15 @@ THE SOFTWARE.
 
 """
 
-import cocotb
-from cocotb.triggers import RisingEdge, Event
-from cocotb.log import SimLog
-
 from collections import deque
 
+import cocotb
+from cocotb.triggers import Event
+from cocotb.log import SimLog
+
 from .version import __version__
-from .constants import *
+from .constants import AxiProt, AxiResp
-from .axil_channels import *
+from .axil_channels import AxiLiteAWSource, AxiLiteWSource, AxiLiteBSink, AxiLiteARSource, AxiLiteRSink
 
 
 class AxiLiteMasterWrite(object):
@@ -175,7 +175,8 @@ class AxiLiteMasterWrite(object):
 
             offset = 0
 
-            self.log.info(f"Write start addr: {address:#010x} prot: {prot} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Write start addr: 0x%08x prot: %s data: %s",
+                address, prot, ' '.join((f'{c:02x}' for c in data)))
 
             for k in range(cycles):
                 start = 0
@@ -224,7 +225,8 @@ class AxiLiteMasterWrite(object):
                 if cycle_resp != AxiResp.OKAY:
                     resp = cycle_resp
 
-            self.log.info(f"Write complete addr: {addr:#010x} prot: {prot} resp: {resp!s} length: {length}")
+            self.log.info("Write complete addr: 0x%08x prot: %s resp: %s length: %d",
+                addr, prot, resp, length)
 
             self.write_resp_queue.append((addr, length, resp, token))
             self.write_resp_sync.set()
@@ -359,7 +361,8 @@ class AxiLiteMasterRead(object):
             self.int_read_resp_command_queue.append((address, length, cycles, prot, token))
             self.int_read_resp_command_sync.set()
 
-            self.log.info(f"Read start addr: {address:#010x} prot: {prot} length: {length}")
+            self.log.info("Read start addr: 0x%08x prot: %s length: %d",
+                address, prot, length)
 
             for k in range(cycles):
                 ar = self.ar_channel._transaction_obj()
@@ -376,8 +379,6 @@ class AxiLiteMasterRead(object):
 
             addr, length, cycles, prot, token = self.int_read_resp_command_queue.popleft()
 
-            word_addr = (addr // self.byte_width) * self.byte_width
-
             start_offset = addr % self.byte_width
             end_offset = ((addr + length - 1) % self.byte_width) + 1
 
@@ -406,7 +407,8 @@ class AxiLiteMasterRead(object):
                 for j in range(start, stop):
                     data.extend(bytearray([(cycle_data >> j*8) & 0xff]))
 
-            self.log.info(f"Read complete addr: {addr:#010x} prot: {prot} resp: {resp!s} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Read complete addr: 0x%08x prot: %s resp: %s data: %s",
+                addr, prot, resp, ' '.join((f'{c:02x}' for c in data)))
 
             self.read_data_queue.append((addr, data, resp, token))
             self.read_data_sync.set()
@@ -502,4 +504,3 @@ class AxiLiteMaster(object):
 
     async def write_qword(self, address, data, prot=AxiProt.NONSECURE):
         return await self.write_if.write_qword(address, data, prot)
-

cocotbext/axi/axil_ram.py

@@ -22,17 +22,14 @@ THE SOFTWARE.
 
 """
 
+import mmap
+
 import cocotb
-from cocotb.triggers import Event
 from cocotb.log import SimLog
 
-import mmap
-import queue
-from collections import deque
-
 from .version import __version__
-from .constants import *
+from .constants import AxiProt, AxiResp
-from .axil_channels import *
+from .axil_channels import AxiLiteAWSink, AxiLiteWSink, AxiLiteBSource, AxiLiteARSink, AxiLiteRSource
 from .utils import hexdump, hexdump_str
 
 
@@ -103,7 +100,8 @@ class AxiLiteRamWrite(object):
 
             data = data.to_bytes(self.byte_width, 'little')
 
-            self.log.info(f"Write data addr: {addr:#010x} prot: {prot} wstrb: {strb:#04x} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Write data awaddr: 0x%08x awprot: %s wstrb: 0x%02x data: %s",
+                addr, prot, strb, ' '.join((f'{c:02x}' for c in data)))
 
             for i in range(self.byte_width):
                 if strb & (1 << i):
@@ -132,9 +130,6 @@ class AxiLiteRamRead(object):
             self.mem = mmap.mmap(-1, size)
         self.size = len(self.mem)
 
-        self.int_read_resp_command_queue = deque()
-        self.int_read_resp_command_sync = Event()
-
         self.in_flight_operations = 0
 
         self.width = len(self.r_channel.bus.rdata)
@@ -179,7 +174,8 @@ class AxiLiteRamRead(object):
 
             self.r_channel.send(r)
 
-            self.log.info(f"Read data addr: {addr:#010x} prot: {prot} data: {' '.join((f'{c:02x}' for c in data))}")
+            self.log.info("Read data araddr: 0x%08x arprot: %s data: %s",
+                addr, prot, ' '.join((f'{c:02x}' for c in data)))
 
 
 class AxiLiteRam(object):
@@ -209,4 +205,3 @@ class AxiLiteRam(object):
 
     def hexdump_str(self, address, length, prefix=""):
         return hexdump_str(self.mem, address, length, prefix=prefix)
-

cocotbext/axi/axis.py

@@ -22,15 +22,16 @@ THE SOFTWARE.
 
 """
 
+from collections import deque
+
 import cocotb
 from cocotb.triggers import RisingEdge, ReadOnly, Timer, First, Event
 from cocotb.bus import Bus
 from cocotb.log import SimLog
 
-from collections import deque
-
 from .version import __version__
 
+
 class AxiStreamFrame(object):
     def __init__(self, tdata=b'', tkeep=None, tid=None, tdest=None, tuser=None):
         self.tdata = bytearray()
@@ -194,10 +195,10 @@ class AxiStreamFrame(object):
 
     def __repr__(self):
         return (
-                f"{type(self).__name__}(tdata={repr(self.tdata)}, " +
+            f"{type(self).__name__}(tdata={repr(self.tdata)}, "
-                f"tkeep={repr(self.tkeep)}, " +
+            f"tkeep={repr(self.tkeep)}, "
-                f"tid={repr(self.tid)}, " +
+            f"tid={repr(self.tid)}, "
-                f"tdest={repr(self.tdest)}, " +
+            f"tdest={repr(self.tdest)}, "
             f"tuser={repr(self.tuser)})"
         )
 
@@ -334,7 +335,7 @@ class AxiStreamSource(object):
                     frame = self.queue.popleft()
                     self.queue_occupancy_bytes -= len(frame)
                     self.queue_occupancy_frames -= 1
-                    self.log.info(f"TX frame: {frame}")
+                    self.log.info("TX frame: %s", frame)
                     frame.normalize()
                     self.active = True
 
@@ -529,7 +530,7 @@ class AxiStreamSink(object):
                     if self.byte_size == 8:
                         frame.tdata = bytearray(frame.tdata)
 
-                    self.log.info(f"RX frame: {frame}")
+                    self.log.info("RX frame: %s", frame)
 
                     self.queue_occupancy_bytes += len(frame)
                     self.queue_occupancy_frames += 1

cocotbext/axi/constants.py

@@ -24,6 +24,7 @@ THE SOFTWARE.
 
 import enum
 
+
 # Burst types
 # AWBURST/ARBURST
 class AxiBurstType(enum.IntEnum):
@@ -31,6 +32,7 @@ class AxiBurstType(enum.IntEnum):
     INCR  = 0b01
     WRAP  = 0b10
 
+
 # Burst sizes (per beat)
 # AWSIZE/ARSIZE
 class AxiBurstSize(enum.IntEnum):
@@ -43,12 +45,14 @@ class AxiBurstSize(enum.IntEnum):
     SIZE_64  = 0b110
     SIZE_128 = 0b111
 
+
 # Lock types
 # AWLOCK/ARLOCK
 class AxiLockType(enum.IntEnum):
     NORMAL    = 0b0
     EXCLUSIVE = 0b1
 
+
 # Cache control
 # AWCACHE/ARCACHE
 class AxiCacheBit(enum.IntFlag):
@@ -57,6 +61,7 @@ class AxiCacheBit(enum.IntFlag):
     RA = 0b0100
     WA = 0b1000
 
+
 # ARCACHE
 ARCACHE_DEVICE_NON_BUFFERABLE = 0b0000
 ARCACHE_DEVICE_BUFFERABLE = 0b0001
@@ -85,6 +90,7 @@ AWCACHE_WRITE_BACK_READ_ALLOC = 0b0111
 AWCACHE_WRITE_BACK_WRITE_ALLOC = 0b1111
 AWCACHE_WRITE_BACK_READ_AND_WRITE_ALLOC = 0b1111
 
+
 # Protection bits
 # AWPROT/ARPROT
 class AxiProt(enum.IntFlag):
@@ -92,6 +98,7 @@ class AxiProt(enum.IntFlag):
     NONSECURE   = 0b010
     INSTRUCTION = 0b100
 
+
 # Operation status responses
 # BRESP/RRESP
 class AxiResp(enum.IntEnum):
@@ -99,4 +106,3 @@ class AxiResp(enum.IntEnum):
     EXOKAY = 0b01
     SLVERR = 0b10
     DECERR = 0b11
-

cocotbext/axi/stream.py

@@ -411,4 +411,3 @@ def define_stream(name, signals, optional_signals=None, valid_signal=None, ready
     monitor = type(name+"Monitor", (StreamMonitor,), attrib)
 
     return transaction, source, sink, monitor
-

cocotbext/axi/utils.py

@@ -22,6 +22,7 @@ THE SOFTWARE.
 
 """
 
+
 def hexdump_line(data, offset):
     h = ""
     c = ""
@@ -30,18 +31,20 @@ def hexdump_line(data, offset):
         c += chr(ch) if 32 < ch < 127 else "."
     return f"{offset:08x}: {h:48} {c}"
 
+
 def hexdump(data, start=0, length=None, prefix="", offset=0):
     stop = min(start+length, len(data)) if length else len(data)
     for k in range(start, stop, 16):
-        print(prefix+hexdump_line(data[k:min(k+16,stop)], k+offset))
+        print(prefix+hexdump_line(data[k:min(k+16, stop)], k+offset))
+
 
 def hexdump_lines(data, start=0, length=None, prefix="", offset=0):
     lines = []
     stop = min(start+length, len(data)) if length else len(data)
     for k in range(start, stop, 16):
-        lines.append(prefix+hexdump_line(data[k:min(k+16,stop)], k+offset))
+        lines.append(prefix+hexdump_line(data[k:min(k+16, stop)], k+offset))
     return lines
 
+
 def hexdump_str(data, start=0, length=None, prefix="", offset=0):
     return "\n".join(hexdump_lines(data, start, length, prefix, offset))
-

setup.py

@@ -11,19 +11,19 @@ with open("README.md", "r") as f:
     long_description = f.read()
 
 setup(
-    name = "cocotbext-axi",
+    name="cocotbext-axi",
     author="Alex Forencich",
     author_email="alex@alexforencich.com",
     description="AXI modules for Cocotb",
     long_description=long_description,
     long_description_content_type='text/markdown',
     url="https://github.com/alexforencich/cocotbext-axi",
-    download_url = 'http://github.com/alexforencich/cocotbext-axi/tarball/master',
+    download_url='http://github.com/alexforencich/cocotbext-axi/tarball/master',
-    version = version,
+    version=version,
-    packages = find_namespace_packages(include=['cocotbext.*']),
+    packages=find_namespace_packages(include=['cocotbext.*']),
-    install_requires = ['cocotb'],
+    install_requires=['cocotb'],
-    python_requires = '>=3.6',
+    python_requires='>=3.6',
-    classifiers = [
+    classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",

tests/axi/test_axi.py

@@ -31,18 +31,18 @@ import cocotb_test.simulator
 import pytest
 
 import cocotb
-from cocotb.log import SimLog
 from cocotb.clock import Clock
 from cocotb.triggers import RisingEdge, Timer
 from cocotb.regression import TestFactory
 
 from cocotbext.axi import AxiMaster, AxiRam
 
+
 class TB(object):
     def __init__(self, dut):
         self.dut = dut
 
-        self.log = SimLog(f"cocotb.tb")
+        self.log = logging.getLogger("cocotb.tb")
         self.log.setLevel(logging.DEBUG)
 
         cocotb.fork(Clock(dut.clk, 2, units="ns").start())
@@ -80,6 +80,7 @@ class TB(object):
         await RisingEdge(self.dut.clk)
         await RisingEdge(self.dut.clk)
 
+
 async def run_test_write(dut, idle_inserter=None, backpressure_inserter=None, size=None):
 
     tb = TB(dut)
@@ -95,17 +96,17 @@ async def run_test_write(dut, idle_inserter=None, backpressure_inserter=None, si
     tb.set_idle_generator(idle_inserter)
     tb.set_backpressure_generator(backpressure_inserter)
 
-    for length in list(range(1,byte_width*2))+[1024]:
+    for length in list(range(1, byte_width*2))+[1024]:
-        for offset in list(range(byte_width))+list(range(4096-byte_width,4096)):
+        for offset in list(range(byte_width))+list(range(4096-byte_width, 4096)):
             tb.log.info(f"length {length}, offset {offset}")
             addr = offset+0x1000
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             tb.axi_ram.write_mem(addr-128, b'\xaa'*(length+256))
 
             await tb.axi_master.write(addr, test_data, size=size)
 
-            tb.log.debug(tb.axi_ram.hexdump_str((addr&0xfffffff0)-16, (((addr&0xf)+length-1)&0xfffffff0)+48))
+            tb.log.debug("%s", tb.axi_ram.hexdump_str((addr & 0xfffffff0)-16, (((addr & 0xf)+length-1) & 0xfffffff0)+48))
 
             assert tb.axi_ram.read_mem(addr, length) == test_data
             assert tb.axi_ram.read_mem(addr-1, 1) == b'\xaa'
@@ -114,6 +115,7 @@ async def run_test_write(dut, idle_inserter=None, backpressure_inserter=None, si
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 async def run_test_read(dut, idle_inserter=None, backpressure_inserter=None, size=None):
 
     tb = TB(dut)
@@ -129,11 +131,11 @@ async def run_test_read(dut, idle_inserter=None, backpressure_inserter=None, siz
     tb.set_idle_generator(idle_inserter)
     tb.set_backpressure_generator(backpressure_inserter)
 
-    for length in list(range(1,byte_width*2))+[1024]:
+    for length in list(range(1, byte_width*2))+[1024]:
-        for offset in list(range(byte_width))+list(range(4096-byte_width,4096)):
+        for offset in list(range(byte_width))+list(range(4096-byte_width, 4096)):
             tb.log.info(f"length {length}, offset {offset}")
             addr = offset+0x1000
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             tb.axi_ram.write_mem(addr, test_data)
 
@@ -144,6 +146,7 @@ async def run_test_read(dut, idle_inserter=None, backpressure_inserter=None, siz
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
 
     tb = TB(dut)
@@ -157,7 +160,7 @@ async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
         for k in range(count):
             length = random.randint(1, min(512, aperture))
             addr = offset+random.randint(0, aperture-length)
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             await Timer(random.randint(1, 100), 'ns')
 
@@ -179,9 +182,11 @@ async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 def cycle_pause():
     return itertools.cycle([1, 1, 1, 0])
 
+
 if cocotb.SIM_NAME:
 
     data_width = int(os.getenv("PARAM_DATA_WIDTH"))
@@ -200,9 +205,12 @@ if cocotb.SIM_NAME:
     factory.generate_tests()
 
 
+# cocotb-test
+
 tests_dir = os.path.dirname(__file__)
 rtl_dir = os.path.abspath(os.path.join(tests_dir, '..', '..', 'rtl'))
 
+
 @pytest.mark.parametrize("data_width", [8, 16, 32])
 def test_axi(request, data_width):
     dut = "test_axi"
@@ -225,7 +233,7 @@ def test_axi(request, data_width):
     parameters['ARUSER_WIDTH'] = 1
     parameters['RUSER_WIDTH'] = 1
 
-    extra_env = {f'PARAM_{k}' : str(v) for k, v in parameters.items()}
+    extra_env = {f'PARAM_{k}': str(v) for k, v in parameters.items()}
 
     sim_build = os.path.join(tests_dir,
         "sim_build_"+request.node.name.replace('[', '-').replace(']', ''))
@@ -239,4 +247,3 @@ def test_axi(request, data_width):
         sim_build=sim_build,
         extra_env=extra_env,
     )
-

tests/axil/test_axil.py

@@ -31,18 +31,18 @@ import cocotb_test.simulator
 import pytest
 
 import cocotb
-from cocotb.log import SimLog
 from cocotb.clock import Clock
 from cocotb.triggers import RisingEdge, Timer
 from cocotb.regression import TestFactory
 
 from cocotbext.axi import AxiLiteMaster, AxiLiteRam
 
+
 class TB(object):
     def __init__(self, dut):
         self.dut = dut
 
-        self.log = SimLog(f"cocotb.tb")
+        self.log = logging.getLogger("cocotb.tb")
         self.log.setLevel(logging.DEBUG)
 
         cocotb.fork(Clock(dut.clk, 2, units="ns").start())
@@ -77,6 +77,7 @@ class TB(object):
         await RisingEdge(self.dut.clk)
         await RisingEdge(self.dut.clk)
 
+
 async def run_test_write(dut, data_in=None, idle_inserter=None, backpressure_inserter=None):
 
     tb = TB(dut)
@@ -88,17 +89,17 @@ async def run_test_write(dut, data_in=None, idle_inserter=None, backpressure_ins
     tb.set_idle_generator(idle_inserter)
     tb.set_backpressure_generator(backpressure_inserter)
 
-    for length in range(1,byte_width*2):
+    for length in range(1, byte_width*2):
         for offset in range(byte_width):
             tb.log.info(f"length {length}, offset {offset}")
             addr = offset+0x1000
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             tb.axil_ram.write_mem(addr-128, b'\xaa'*(length+256))
 
             await tb.axil_master.write(addr, test_data)
 
-            tb.log.debug(tb.axil_ram.hexdump_str((addr&0xfffffff0)-16, (((addr&0xf)+length-1)&0xfffffff0)+48))
+            tb.log.debug("%s", tb.axil_ram.hexdump_str((addr & 0xfffffff0)-16, (((addr & 0xf)+length-1) & 0xfffffff0)+48))
 
             assert tb.axil_ram.read_mem(addr, length) == test_data
             assert tb.axil_ram.read_mem(addr-1, 1) == b'\xaa'
@@ -107,6 +108,7 @@ async def run_test_write(dut, data_in=None, idle_inserter=None, backpressure_ins
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 async def run_test_read(dut, data_in=None, idle_inserter=None, backpressure_inserter=None):
 
     tb = TB(dut)
@@ -118,11 +120,11 @@ async def run_test_read(dut, data_in=None, idle_inserter=None, backpressure_inse
     tb.set_idle_generator(idle_inserter)
     tb.set_backpressure_generator(backpressure_inserter)
 
-    for length in range(1,byte_width*2):
+    for length in range(1, byte_width*2):
         for offset in range(byte_width):
             tb.log.info(f"length {length}, offset {offset}")
             addr = offset+0x1000
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             tb.axil_ram.write_mem(addr, test_data)
 
@@ -133,6 +135,7 @@ async def run_test_read(dut, data_in=None, idle_inserter=None, backpressure_inse
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
 
     tb = TB(dut)
@@ -146,7 +149,7 @@ async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
         for k in range(count):
             length = random.randint(1, min(32, aperture))
             addr = offset+random.randint(0, aperture-length)
-            test_data = bytearray([x%256 for x in range(length)])
+            test_data = bytearray([x % 256 for x in range(length)])
 
             await Timer(random.randint(1, 100), 'ns')
 
@@ -168,9 +171,11 @@ async def run_stress_test(dut, idle_inserter=None, backpressure_inserter=None):
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 def cycle_pause():
     return itertools.cycle([1, 1, 1, 0])
 
+
 if cocotb.SIM_NAME:
 
     for test in [run_test_write, run_test_read]:
@@ -184,9 +189,12 @@ if cocotb.SIM_NAME:
     factory.generate_tests()
 
 
+# cocotb-test
+
 tests_dir = os.path.dirname(__file__)
 rtl_dir = os.path.abspath(os.path.join(tests_dir, '..', '..', 'rtl'))
 
+
 @pytest.mark.parametrize("data_width", [8, 16, 32])
 def test_axil(request, data_width):
     dut = "test_axil"
@@ -203,7 +211,7 @@ def test_axil(request, data_width):
     parameters['ADDR_WIDTH'] = 32
     parameters['STRB_WIDTH'] = parameters['DATA_WIDTH'] // 8
 
-    extra_env = {f'PARAM_{k}' : str(v) for k, v in parameters.items()}
+    extra_env = {f'PARAM_{k}': str(v) for k, v in parameters.items()}
 
     sim_build = os.path.join(tests_dir,
         "sim_build_"+request.node.name.replace('[', '-').replace(']', ''))
@@ -217,4 +225,3 @@ def test_axil(request, data_width):
         sim_build=sim_build,
         extra_env=extra_env,
     )
-

tests/axis/test_axis.py

@@ -31,18 +31,18 @@ import cocotb_test.simulator
 import pytest
 
 import cocotb
-from cocotb.log import SimLog
 from cocotb.clock import Clock
 from cocotb.triggers import RisingEdge
 from cocotb.regression import TestFactory
 
 from cocotbext.axi import AxiStreamFrame, AxiStreamSource, AxiStreamSink
 
+
 class TB(object):
     def __init__(self, dut):
         self.dut = dut
 
-        self.log = SimLog(f"cocotb.tb")
+        self.log = logging.getLogger("cocotb.tb")
         self.log.setLevel(logging.DEBUG)
 
         cocotb.fork(Clock(dut.clk, 2, units="ns").start())
@@ -69,6 +69,7 @@ class TB(object):
         await RisingEdge(self.dut.clk)
         await RisingEdge(self.dut.clk)
 
+
 async def run_test(dut, payload_lengths=None, payload_data=None, idle_inserter=None, backpressure_inserter=None):
 
     tb = TB(dut)
@@ -84,7 +85,7 @@ async def run_test(dut, payload_lengths=None, payload_data=None, idle_inserter=N
 
     test_frames = []
 
-    for test_data in [payload_data(l) for l in payload_lengths()]:
+    for test_data in [payload_data(x) for x in payload_lengths()]:
         test_frame = AxiStreamFrame(test_data)
         test_frame.tid = cur_id
         test_frame.tdest = cur_id
@@ -108,17 +109,21 @@ async def run_test(dut, payload_lengths=None, payload_data=None, idle_inserter=N
     await RisingEdge(dut.clk)
     await RisingEdge(dut.clk)
 
+
 def cycle_pause():
     return itertools.cycle([1, 1, 1, 0])
 
+
 def size_list():
     data_width = int(os.getenv("PARAM_DATA_WIDTH"))
     byte_width = data_width // 8
-    return list(range(1,data_width*4+1))+[512]+[1]*64
+    return list(range(1, byte_width*4+1)) + [512] + [1]*64
+
 
 def incrementing_payload(length):
     return bytearray(itertools.islice(itertools.cycle(range(256)), length))
 
+
 if cocotb.SIM_NAME:
 
     factory = TestFactory(run_test)
@@ -129,9 +134,12 @@ if cocotb.SIM_NAME:
     factory.generate_tests()
 
 
+# cocotb-test
+
 tests_dir = os.path.dirname(__file__)
 rtl_dir = os.path.abspath(os.path.join(tests_dir, '..', '..', 'rtl'))
 
+
 @pytest.mark.parametrize("data_width", [8, 16, 32])
 def test_axis(request, data_width):
     dut = "test_axis"
@@ -150,7 +158,7 @@ def test_axis(request, data_width):
     parameters['DEST_WIDTH'] = 8
     parameters['USER_WIDTH'] = 1
 
-    extra_env = {f'PARAM_{k}' : str(v) for k, v in parameters.items()}
+    extra_env = {f'PARAM_{k}': str(v) for k, v in parameters.items()}
 
     sim_build = os.path.join(tests_dir,
         "sim_build_"+request.node.name.replace('[', '-').replace(']', ''))
@@ -164,4 +172,3 @@ def test_axis(request, data_width):
         sim_build=sim_build,
         extra_env=extra_env,
     )
-