[breaking-change] Factor out "serial" resource and rename to "uart".

Also, add missing pullups where appropriate.

1 files changed, 26 insertions, 0 deletions

diff --git a/nmigen_boards/dev/uart.py b/nmigen_boards/dev/uart.py
new file mode 100644
index 0000000..27d1c81
--- /dev/null
+++ b/nmigen_boards/dev/uart.py
@@ -0,0 +1,26 @@
+from nmigen.build import *
+
+
+__all__ = ["UARTResource"]
+
+
+def UARTResource(number, *, rx, tx, rts=None, cts=None, dtr=None, dsr=None, dcd=None, ri=None,
+                 attrs=None):
+    io = []
+    io.append(Subsignal("rx", Pins(rx, dir="i")))
+    io.append(Subsignal("tx", Pins(rx, dir="o")))
+    if rts is not None:
+        io.append(Subsignal("rts", Pins(rts, dir="o")))
+    if cts is not None:
+        io.append(Subsignal("cts", Pins(cts, dir="i")))
+    if dtr is not None:
+        io.append(Subsignal("dtr", Pins(dtr, dir="o")))
+    if dsr is not None:
+        io.append(Subsignal("dsr", Pins(dsr, dir="i")))
+    if dcd is not None:
+        io.append(Subsignal("dcd", Pins(dcd, dir="i")))
+    if ri is not None:
+        io.append(Subsignal("ri", Pins(ri, dir="i")))
+    if attrs is not None:
+        io.append(attrs)
+    return Resource("uart", number, *io)