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util/nvmutil: further clean up decode_pulse()

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-11 23:40:34 +00:00
parent 42cad20ffd
commit bbb8825553
1 changed files with 9 additions and 10 deletions
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util/spkmodem_recv/spkmodem-recv.c
+9 -10
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@@ -113,27 +113,26 @@ static void
decode_pulse(void) decode_pulse(void)
{ {
size_t n; size_t n;
size_t frame_size; int next_ringpos;
int next_ringpos = (ringpos + SAMPLES_PER_FRAME) % MAX_SAMPLES; next_ringpos = (ringpos + SAMPLES_PER_FRAME) % MAX_SAMPLES;
freq_data -= pulse[ringpos]; freq_data -= pulse[ringpos];
freq_data += pulse[next_ringpos]; freq_data += pulse[next_ringpos];
freq_separator -= pulse[next_ringpos]; freq_separator -= pulse[next_ringpos];
frame_size = sizeof(frame[0]); n = fread(&frame[ringpos], 1, sizeof(frame[0]), stdin);
n = fread(&frame[ringpos], 1, frame_size, stdin); if (n != sizeof(frame[0])) {
if (n != frame_size) {
if (feof(stdin)) if (feof(stdin))
exit(EXIT_SUCCESS); exit(EXIT_SUCCESS);
if (ferror(stdin)) err(errno, "stdin read");
err(errno, "Could not read from frame.");
} }
pulse[ringpos] = (abs(frame[ringpos]) > THRESHOLD) ? 1 : 0; pulse[ringpos] = (abs(frame[ringpos]) > THRESHOLD) ? 1 : 0;
freq_separator += pulse[ringpos++];
ringpos %= MAX_SAMPLES; freq_separator += pulse[ringpos];
ringpos = (ringpos + 1) % MAX_SAMPLES;
++sample_count; ++sample_count;
} }