diff options
| author | Leah Rowe <leah@libreboot.org> | 2026-03-13 01:49:07 +0000 |
|---|---|---|
| committer | Leah Rowe <leah@libreboot.org> | 2026-03-13 01:49:07 +0000 |
| commit | e29ca3c0d33e90a226fe600e0054ab44162d370c (patch) | |
| tree | 77ab6d62de392405518aaeb84cf95eb17bb04313 /util/spkmodem_decode | |
| parent | 1ec8bfbe91615bd6e451b186fc87f6b6c165477d (diff) | |
spkmodem-decode: ignore invalid frames when setting bits
bits are currently assembled even on invalid frames. this
patch fixes that - the bug is also in the GNU version.
this reduces the chance of noise/calibration from creating
corrupt character output during operation.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Diffstat (limited to 'util/spkmodem_decode')
| -rw-r--r-- | util/spkmodem_decode/spkmodem-decode.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/util/spkmodem_decode/spkmodem-decode.c b/util/spkmodem_decode/spkmodem-decode.c index 2a05d511..a90f3de7 100644 --- a/util/spkmodem_decode/spkmodem-decode.c +++ b/util/spkmodem_decode/spkmodem-decode.c @@ -406,10 +406,15 @@ set_ascii_bit(struct decoder_state *st) { if (st->debug) print_stats(st); + + if (!is_valid_signal(st)) + return st->ascii_bit; + if (st->freq_data < st->freq_threshold) st->ascii |= (1 << st->ascii_bit); st->ascii_bit--; + return st->ascii_bit; } |