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utils: litex_server: add usb support

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Add `--usb` and associated arguments to create a litex bridge over
USB.  This makes use of the new CommUSB module.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2019-04-19 15:56:39 +01:00
parent 9dd59d6301
commit c69183648f
1 changed files with 23 additions and 0 deletions
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23
litex/utils/litex_server.py
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@ -122,6 +122,16 @@ def main():
help="Select PCIe interface") help="Select PCIe interface")
parser.add_argument("--pcie-bar", default=None, parser.add_argument("--pcie-bar", default=None,
help="Set PCIe BAR") help="Set PCIe BAR")
# USB arguments
parser.add_argument("--usb", action="store_true",
help="Select USB interface")
parser.add_argument("--usb-vid", default=None,
help="Set USB vendor ID")
parser.add_argument("--usb-pid", default=None,
help="Set USB product ID")
parser.add_argument("--usb-max-retries", default=10,
help="Number of times to try reconnecting to USB")
args = parser.parse_args() args = parser.parse_args()
@ -148,6 +158,19 @@ def main():
exit() exit()
print("[CommPCIe] bar: {} / ".format(args.pcie_bar), end="") print("[CommPCIe] bar: {} / ".format(args.pcie_bar), end="")
comm = CommPCIe(args.pcie_bar) comm = CommPCIe(args.pcie_bar)
elif args.usb:
from litex.soc.tools.remote import CommUSB
if args.usb_pid is None and args.usb_vid is None:
print("Need to speficy --usb-vid or --usb-pid, exiting.")
exit()
print("[CommUSB] vid: {} / pid: {} / ".format(args.usb_vid, args.usb_pid), end="")
pid = args.usb_pid
if pid is not None:
pid = int(pid, base=0)
vid = args.usb_vid
if vid is not None:
vid = int(vid, base=0)
comm = CommUSB(vid=vid, pid=pid, max_retries=args.usb_max_retries)
else: else:
parser.print_help() parser.print_help()
exit() exit()