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sys: avoid notification of neglible dispersion on slew update

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This commit is contained in:
Miroslav Lichvar 2014-05-22 15:34:36 +02:00
parent a43810533f
commit e8bb95ba55
1 changed files with 5 additions and 3 deletions
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8
sys_generic.c
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@ -154,7 +154,8 @@ update_slew(void)
/* Compute the dispersion introduced by changing frequency and add it
to all statistics held at higher levels in the system */
slew_error = fabs((old_slew_freq - slew_freq) * max_freq_change_delay);
lcl_InvokeDispersionNotifyHandlers(slew_error);
if (slew_error >= MIN_OFFSET_CORRECTION)
lcl_InvokeDispersionNotifyHandlers(slew_error);
/* Compute the duration of the slew and clamp it. If the slewing frequency
is zero or has wrong sign (e.g. due to rounding in the frequency driver or
@ -178,8 +179,9 @@ update_slew(void)
slew_start = now;
slew_timer_running = 1;
DEBUG_LOG(LOGF_SysGeneric, "slew offset=%e corr_rate=%e base_freq=%f total_freq=%f slew_freq=%e duration=%f",
offset_register, correction_rate, base_freq, total_freq, slew_freq, duration);
DEBUG_LOG(LOGF_SysGeneric, "slew offset=%e corr_rate=%e base_freq=%f total_freq=%f slew_freq=%e duration=%f slew_error=%e",
offset_register, correction_rate, base_freq, total_freq, slew_freq,
duration, slew_error);
}
/* ================================================== */