mirror of https://github.com/m-labs/artiq.git
43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
from collections import OrderedDict
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from operator import itemgetter
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import csv
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from misoc.interconnect.csr import CSRStatus, CSRStorage
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def _get_csr_data(csv_file):
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csr_data = OrderedDict()
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with open(csv_file) as csv_file_f:
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csv_reader = csv.reader(csv_file_f)
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for name, address, length, ro in csv_reader:
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region_name, csr_name = name.split(".")
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address = int(address, 0)
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length = int(length, 0)
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ro = ro == "ro"
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if region_name not in csr_data:
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csr_data[region_name] = []
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csr_data[region_name].append((csr_name, address, length, ro))
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return csr_data
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def get_remote_csr_regions(offset, csv_file):
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busword = 32
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regions = []
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for region_name, csrs_info in _get_csr_data(csv_file).items():
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csrs_info = sorted(csrs_info, key=itemgetter(1))
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origin = csrs_info[0][1]
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next_address = origin
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csrs = []
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for csr_name, address, length, ro in csrs_info:
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if address != next_address:
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raise ValueError("CSRs are not contiguous")
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nr = (length + busword - 1)//busword
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next_address += nr*busword//8
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if ro:
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csr = CSRStatus(length, name=csr_name)
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else:
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csr = CSRStorage(length, name=csr_name)
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csrs.append(csr)
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regions.append((region_name, offset + origin, busword, csrs))
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return regions
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