mirror of https://github.com/openXC7/prjxray.git
91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2017-2020 The Project X-Ray Authors.
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#
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# Use of this source code is governed by a ISC-style
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# license that can be found in the LICENSE file or at
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# https://opensource.org/licenses/ISC
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#
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# SPDX-License-Identifier: ISC
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import re
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import os
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from prjxray.segmaker import Segmaker
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from prjxray.bitfilter import get_bitfilter
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segmk = Segmaker("design.bits")
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tiledata = dict()
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pipdata = dict()
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ignpip = set()
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print("Loading tags from design.txt.")
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with open("design.txt", "r") as f:
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for line in f:
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tile, pip, src, dst, pnum, pdir = line.split()
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if not tile.startswith('INT_'):
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continue
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_, pip = pip.split(".")
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_, src = src.split("/")
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_, dst = dst.split("/")
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pnum = int(pnum)
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pdir = int(pdir)
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if tile not in tiledata:
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tiledata[tile] = {"pips": set(), "srcs": set(), "dsts": set()}
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if pip in pipdata:
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assert pipdata[pip] == (src, dst)
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else:
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pipdata[pip] = (src, dst)
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tiledata[tile]["pips"].add(pip)
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tiledata[tile]["srcs"].add(src)
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tiledata[tile]["dsts"].add(dst)
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if pdir == 0:
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tiledata[tile]["srcs"].add(dst)
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tiledata[tile]["dsts"].add(src)
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gfan_src = re.match('^GFAN', src) is not None
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fan_alt_byp_bounce = re.match('^FAN_ALT[0-9]',
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dst) is not None and re.match(
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'^BYP_BOUNCE.*', src) is not None
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byp_alt_imux_dst = re.match(
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'^(BYP_ALT[0-9]+|IMUX_?L?[0-9]+)', dst) is not None
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logic_out_src = re.match('^LOGIC_OUTS_?L?[0-9]+', src) is not None
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# Okay: BYP_ALT0.VCC_WIRE
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# Skip: INT.IMUX13.VCC_WIRE, INT.IMUX_L43.VCC_WIRE
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# Skip: INT.BYP_ALT[0-9].LOGIC_OUTS_ and INT.IMUX_?L?. LOGIC_OUTS_
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if pnum == 1 or pdir == 0 or \
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src == "VCC_WIRE" or \
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re.match(r"^(L[HV]B?|G?CLK)(_L)?(_B)?[0-9]", src) or \
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re.match(r"^(L[HV]B?|G?CLK)(_L)?(_B)?[0-9]", dst) or \
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gfan_src or \
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fan_alt_byp_bounce or \
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(logic_out_src and byp_alt_imux_dst) or \
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re.match(r"^(CTRL|GFAN)(_L)?[0-9]", dst):
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ignpip.add(pip)
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for tile, pips_srcs_dsts in tiledata.items():
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pips = pips_srcs_dsts["pips"]
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srcs = pips_srcs_dsts["srcs"]
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dsts = pips_srcs_dsts["dsts"]
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for pip, src_dst in pipdata.items():
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src, dst = src_dst
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if pip in ignpip:
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pass
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elif pip in pips:
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segmk.add_tile_tag(tile, "%s.%s" % (dst, src), 1)
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elif src_dst[1] not in dsts:
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segmk.add_tile_tag(tile, "%s.%s" % (dst, src), 0)
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segmk.compile(bitfilter=get_bitfilter(os.getenv('XRAY_DATABASE'), 'INT'))
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segmk.write()
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