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FMC TDC 1ns 5cha - Software
Commit 5b333eb5 authored by Samuel Iglesias Gonsálvez's avatar Samuel Iglesias Gonsálvez
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tdc: fix error in pulse width calculation 

Signed-off-by: Samuel Iglesias Gonsálvez's avatarSamuel Iglesias Gonsalvez <siglesias@igalia.com>
parent 7460f9a8
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Showing with 9 additions and 3 deletions
drivers/tdc-fmc.c
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......@@ -90,20 +90,26 @@ static int tdc_fmc_check_lost_events(u32 curr_wr_ptr, u32 prev_wr_ptr, int *coun
static inline int tdc_is_valid_pulse_width(struct tdc_event rising, struct tdc_event falling)
{
int diff;
diff = falling.fine_time - rising.fine_time;
/* Check pulse width from smaller to bigger quantities. */
if (likely(rising.fine_time < (falling.fine_time - 124))) {
if (likely(diff > 124)) {
/* Valid pulse width (higher or equal to 100 ns) */
return 1;
}
else {
if (likely(rising.coarse_time < (falling.coarse_time - 13)))
diff = falling.coarse_time - rising.coarse_time;
if (likely(diff > 13)) {
/* Valid pulse width (higher or equal to 100 ns) */
return 1;
}
else {
if (likely(rising.local_utc < (falling.local_utc - 1)))
diff = falling.local_utc - rising.local_utc;
if (likely(diff > 1)) {
/* Valid pulse width (higher or equal to 100 ns) */
return 1;
}
}
}
......
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