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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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import sys, os
import tvm
from tvm import rpc
from vta import get_bitstream_path, download_bitstream, program_fpga, reconfig_runtime

host = os.environ.get("VTA_RPC_HOST", "de10nano")
port = int(os.environ.get("VTA_RPC_PORT", "9091"))


def program_rpc_bitstream(path=None):
    """Program the FPGA on the RPC server

    Parameters
    ----------
    path : path to bitstream (optional)
    """
    assert tvm.runtime.enabled("rpc")
    remote = rpc.connect(host, port)
    program_fpga(remote, path)


def reconfig_rpc_runtime():
    """Reconfig the RPC server runtime"""
    assert tvm.runtime.enabled("rpc")
    remote = rpc.connect(host, port)
    reconfig_runtime(remote)


bitstream = sys.argv[1] if len(sys.argv) == 2 else None
program_rpc_bitstream(bitstream)
reconfig_rpc_runtime()