8b10b encoder and decoder working

Tested on all 24-bit inputs after sync and on ~500M of random input
with and without intermediate sync

1 files changed, 43 insertions, 0 deletions

diff --git a/fw/8b10b_test_vector_gen.py b/fw/8b10b_test_vector_gen.py
new file mode 100755
index 0000000..12460c1
--- /dev/null
+++ b/fw/8b10b_test_vector_gen.py
@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+
+def parse_size(s):
+    s = s.lower()
+    SUFFIXES = {'k': 1e3, 'm': 1e6, 'g': 1e9}
+    if s[-1] in SUFFIXES:
+        return int(int(s[:-1]) * SUFFIXES[s[-1]])
+    return int(s)
+
+def hexdump(data, byte_per_line=64):
+    for i in range(0, len(data), byte_per_line):
+        out = data[i:i+byte_per_line]
+        print(' '.join(f'{out[k]:02x}' for k in range(len(out)))) # use len(out) to handle partial lines
+
+if __name__ == '__main__':
+    from itertools import product
+    import os
+    import argparse
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument('cmd')
+    parser.add_argument('-l', '--length', default='1M', help='Generate [length} byte test vector. Only applicable to random.')
+    parser.add_argument('-s', '--syncfreq', default=None, help='Emit comma every [syncfreq] bytes. Default: don\'t emit any commas. Only applicable to random.')
+    args = parser.parse_args()
+
+    length = parse_size(args.length)
+    syncfreq = parse_size(args.syncfreq)
+
+
+    if args.cmd == 'exhaustive_separated':
+        for i, j, k in product(range(256), range(256), range(256)):
+            print(f'K.28.1 {i:02x} {j:02x} {k:02x}')
+
+    elif args.cmd == 'exhaustive_block':
+        print('K.28.1')
+        for i, j, k in product(range(256), range(256), range(256)):
+            print(f'{i:02x} {j:02x} {k:02x}')
+
+    elif args.cmd == 'random':
+        for chunk in range(0, length, syncfreq):
+            print('K.28.1')
+            hexdump(os.urandom(min(length-chunk, syncfreq)))
+