mirror of https://github.com/openXC7/prjxray.git
148 lines
4.5 KiB
Python
148 lines
4.5 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 json
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import os
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from enum import Enum
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from prjxray.segmaker import Segmaker, add_site_group_zero
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INT = "INT"
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BIN = "BIN"
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BOOL = "BOOL"
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STR = "STR"
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def bitfilter_gtx_channel_x(frame, bit):
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# Filter out interconnect bits.
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if frame not in [28, 29, 30, 31]:
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return False
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return True
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def bitfilter_gtx_channel_x_mid(frame, bit):
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# Filter out interconnect bits.
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if frame not in [0, 1, 2, 3]:
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return False
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return True
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def main():
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segmk = Segmaker("design.bits")
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fuz_dir = os.getenv("FUZDIR", None)
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assert fuz_dir
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with open(os.path.join(fuz_dir, "attrs.json"), "r") as attr_file:
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attrs = json.load(attr_file)
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print("Loading tags")
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with open("params.json") as f:
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primitives_list = json.load(f)
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for primitive in primitives_list:
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tile_type = primitive["tile_type"]
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params_list = primitive["params"]
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for params in params_list:
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site = params["site"]
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if "GTXE2_CHANNEL" not in site:
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continue
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in_use = params["IN_USE"]
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segmk.add_site_tag(site, "IN_USE", in_use)
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if in_use:
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for param, param_info in attrs.items():
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value = params[param]
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param_type = param_info["type"]
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param_digits = param_info["digits"]
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param_values = param_info["values"]
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if param_type == INT:
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param_encodings = param_info["encoding"]
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param_encoding = param_encodings[param_values.index(
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value)]
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bitstr = [
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int(x) for x in "{value:0{digits}b}".format(
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value=param_encoding, digits=param_digits)
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[::-1]
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]
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for i in range(param_digits):
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segmk.add_site_tag(
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site, '%s[%u]' % (param, i), bitstr[i])
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elif param_type == BIN:
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bitstr = [
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int(x) for x in "{value:0{digits}b}".format(
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value=value, digits=param_digits)[::-1]
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]
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for i in range(param_digits):
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segmk.add_site_tag(
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site, "%s[%u]" % (param, i), bitstr[i])
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elif param_type == BOOL:
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segmk.add_site_tag(site, param, value == "TRUE")
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else:
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assert param_type == STR
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# The RXSLIDE_MODE parameter has overlapping bits
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# for its possible values. We need to treat it
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# differently
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if param == "RXSLIDE_MODE":
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add_site_group_zero(
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segmk, site, "{}.".format(param), param_values,
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"OFF", value)
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else:
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for param_value in param_values:
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segmk.add_site_tag(
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site, "{}.{}".format(param, param_value),
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value == param_value)
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for param in ["TXUSRCLK", "TXUSRCLK2", "TXPHDLYTSTCLK",
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"RXUSRCLK", "RXUSRCLK2", "DRPCLK"]:
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segmk.add_site_tag(site, "INV_" + param, params[param])
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gtx_channel_x = [
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"GTX_CHANNEL_0",
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"GTX_CHANNEL_1",
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"GTX_CHANNEL_2",
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"GTX_CHANNEL_3",
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]
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gtx_channel_x_mid = [
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"GTX_CHANNEL_0_MID_LEFT",
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"GTX_CHANNEL_1_MID_LEFT",
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"GTX_CHANNEL_2_MID_LEFT",
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"GTX_CHANNEL_3_MID_LEFT",
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"GTX_CHANNEL_0_MID_RIGHT",
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"GTX_CHANNEL_1_MID_RIGHT",
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"GTX_CHANNEL_2_MID_RIGHT",
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"GTX_CHANNEL_3_MID_RIGHT",
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]
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if tile_type in gtx_channel_x:
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bitfilter = bitfilter_gtx_channel_x
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elif tile_type in gtx_channel_x_mid:
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bitfilter = bitfilter_gtx_channel_x_mid
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else:
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assert False, tile_type
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segmk.compile(bitfilter=bitfilter)
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segmk.write()
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if __name__ == '__main__':
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main()
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