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tools/litex_term: Convert some common scan codes into ANSI codes on Windows.

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William D. Jones 2021-01-11 21:02:37 -05:00
parent 5babcadbed
commit ce243820fe
1 changed files with 46 additions and 0 deletions
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46
litex/tools/litex_term.py
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@ -36,6 +36,42 @@ if sys.platform == "win32":
def getkey(self):
return msvcrt.getch()
# getch doesn't return Virtual Keycodes, but rather
# PS/2 Scan Codes. Keycodes starting with 0xE0 are
# worth handling.
def escape_char(self, b):
return b == b"\xe0"
def handle_escape(self, b):
# UP
if b == b"H":
return b"\x1b[A"
# DOWN
elif b == b"P":
return b"\x1b[B"
# LEFT
elif b == b"K":
return b"\x1b[D"
# RIGHT
elif b == b"M":
return b"\x1b[C"
# HOME
elif b == b"G":
return b"\x1b[H"
# END
elif b == b"O":
return b"\x1b[F"
# INSERT
elif b == b"R":
return b"\x1b[2~"
# DELETE
elif b == b"S":
return b"\x1b[3~"
else:
# Ignore remaining- TODO: Maybe handle ESC eventually?
return None
else:
import termios
import pty
@ -57,6 +93,12 @@ else:
def getkey(self):
return os.read(self.fd, 1)
def escape_char(self, b):
return False
def handle_escape(self, b):
return None
# Crossover UART ----------------------------------------------------------------------------------
from litex import RemoteClient
@ -449,6 +491,10 @@ class LiteXTerm:
self.stop()
elif b == b"\n":
self.port.write(b"\x0a")
elif self.console.escape_char(b):
b = self.console.getkey()
ansi_seq = self.console.handle_escape(b)
self.port.write(ansi_seq)
else:
self.port.write(b)
except: