From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Fri, 5 Dec 2014 17:00:02 +0000 (+0100)
Subject: link_tb: use LinkTXPacket and LinkRXPacket from bfm
X-Git-Tag: 24jan2021_ls180~2572^2~149
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b238c41b266449e5c8be1aa1de7479acaeb890e6;p=litex.git

link_tb: use LinkTXPacket and LinkRXPacket from bfm
---

diff --git a/lib/sata/test/bfm.py b/lib/sata/test/bfm.py
index af7a2685..5f090288 100644
--- a/lib/sata/test/bfm.py
+++ b/lib/sata/test/bfm.py
@@ -79,9 +79,12 @@ class PHYLayer(Module):
 		return receiving + sending
 
 class LinkPacket(list):
-	def __init__(self):
+	def __init__(self, init=[]):
 		self.ongoing = False
+		self.done = False
 		self.scrambled_datas = self.import_scrambler_datas()
+		for dword in init:
+			self.append(dword)
 
 	def import_scrambler_datas(self):
 		with subprocess.Popen(["./scrambler"], stdin=subprocess.PIPE, stdout=subprocess.PIPE) as process:
diff --git a/lib/sata/test/link_tb.py b/lib/sata/test/link_tb.py
index 3260034f..f2d63ce6 100644
--- a/lib/sata/test/link_tb.py
+++ b/lib/sata/test/link_tb.py
@@ -10,18 +10,12 @@ from lib.sata.link import SATALinkLayer
 from lib.sata.test.bfm import *
 from lib.sata.test.common import *
 
-class LinkPacket():
-	def __init__(self, d=[]):
-		self.d = d
-		self.start = 1
-		self.done = 0
-
 class LinkStreamer(Module):
 	def __init__(self, dw):
 		self.source = Source(link_layout(dw))
 		###
 		self.packets = []
-		self.packet = LinkPacket()
+		self.packet = LinkTXPacket()
 		self.packet.done = 1
 
 	def send(self, packet, blocking=True):
@@ -33,17 +27,17 @@ class LinkStreamer(Module):
 	def do_simulation(self, selfp):
 		if len(self.packets) and self.packet.done:
 			self.packet = self.packets.pop(0)
-		if self.packet.start and not self.packet.done:
+		if not self.packet.ongoing and not self.packet.done:
 			selfp.source.stb = 1
 			selfp.source.sop = 1
-			selfp.source.d = self.packet.d.pop(0)
-			self.packet.start = 0
+			selfp.source.d = self.packet.pop(0)
+			self.packet.ongoing = True
 		elif selfp.source.stb == 1 and selfp.source.ack == 1:
 			selfp.source.sop = 0
-			selfp.source.eop = (len(self.packet.d) == 1)
-			if len(self.packet.d) > 0:
+			selfp.source.eop = (len(self.packet) == 1)
+			if len(self.packet) > 0:
 				selfp.source.stb = 1
-				selfp.source.d = self.packet.d.pop(0)
+				selfp.source.d = self.packet.pop(0)
 			else:
 				self.packet.done = 1
 				selfp.source.stb = 0
@@ -52,7 +46,7 @@ class LinkLogger(Module):
 	def __init__(self, dw):
 		self.sink = Sink(link_layout(dw))
 		###
-		self.packet = LinkPacket()
+		self.packet = LinkRXPacket()
 
 	def receive(self):
 		self.packet.done = 0
@@ -60,16 +54,14 @@ class LinkLogger(Module):
 			yield
 
 	def do_simulation(self, selfp):
-		self.packet.done = 0
 		selfp.sink.ack = 1
 		if selfp.sink.stb == 1 and selfp.sink.sop == 1:
-			self.packet.start = 1
-			self.packet.d = [selfp.sink.d]
+			self.packet = LinkRXPacket()
+			self.packet.append(selfp.sink.d)
 		elif selfp.sink.stb:
-			self.packet.start = 0
-			self.packet.d.append(selfp.sink.d)
+			self.packet.append(selfp.sink.d)
 		if (selfp.sink.stb ==1 and selfp.sink.eop ==1):
-			self.packet.done = 1
+			self.packet.done = True
 
 class TB(Module):
 	def __init__(self):
@@ -90,7 +82,7 @@ class TB(Module):
 		for i in range(200):
 			yield
 		for i in range(8):
-			yield from self.streamer.send(LinkPacket([i for i in range(16)]))
+			yield from self.streamer.send(LinkTXPacket([i for i in range(16)]))
 
 if __name__ == "__main__":
 	run_simulation(TB(), ncycles=512, vcd_name="my.vcd", keep_files=True)