From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Sat, 2 May 2015 14:15:58 +0000 (+0200)
Subject: liteusb/frontend/wishbone: use new packetized mode (allow grouping response in a... 
X-Git-Tag: 24jan2021_ls180~2267
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e9ef11620f05a646fe0fb4c8c1a246d42ea51459;p=litex.git

liteusb/frontend/wishbone: use new packetized mode (allow grouping response in a single packet)
---

diff --git a/misoclib/com/liteusb/frontend/wishbone.py b/misoclib/com/liteusb/frontend/wishbone.py
index 8b4d4dc1..c2c00d30 100644
--- a/misoclib/com/liteusb/frontend/wishbone.py
+++ b/misoclib/com/liteusb/frontend/wishbone.py
@@ -6,9 +6,4 @@ from misoclib.tools.litescope.frontend.wishbone import LiteScopeWishboneBridge
 class LiteUSBWishboneBridge(LiteScopeWishboneBridge):
     def __init__(self, port, clk_freq):
         LiteScopeWishboneBridge.__init__(self, port, clk_freq)
-        self.comb += [
-            port.sink.sop.eq(1),
-            port.sink.eop.eq(1),
-            port.sink.length.eq(1),
-            port.sink.dst.eq(port.tag)
-        ]
+        self.comb += port.sink.dst.eq(port.tag)
diff --git a/misoclib/com/liteusb/software/ftdi/__init__.py b/misoclib/com/liteusb/software/ftdi/__init__.py
index 17e60b40..006868fe 100644
--- a/misoclib/com/liteusb/software/ftdi/__init__.py
+++ b/misoclib/com/liteusb/software/ftdi/__init__.py
@@ -179,10 +179,15 @@ class UART:
             self.q = queue.Queue()
 
         def get_packet_size(self, buf):
-            return 10
+            payload_size = buf[5] << 24
+            payload_size |= buf[6] << 16
+            payload_size |= buf[7] << 8
+            payload_size |= buf[8] << 0
+            return 9 + payload_size
 
         def consume(self, buf):
-            self.q.put(buf[9])
+            for value in buf[9:]:
+                self.q.put(value)
 
     def __init__(self, tag):
         self.tag = tag