diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time.c | 59 | ||||
| -rw-r--r-- | kernel/timer.c | 13 |
2 files changed, 18 insertions, 54 deletions
diff --git a/kernel/time.c b/kernel/time.c index 804539165d8..e00a97b7724 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -202,24 +202,6 @@ asmlinkage long sys_settimeofday(struct timeval __user *tv, return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL); } -long pps_offset; /* pps time offset (us) */ -long pps_jitter = MAXTIME; /* time dispersion (jitter) (us) */ - -long pps_freq; /* frequency offset (scaled ppm) */ -long pps_stabil = MAXFREQ; /* frequency dispersion (scaled ppm) */ - -long pps_valid = PPS_VALID; /* pps signal watchdog counter */ - -int pps_shift = PPS_SHIFT; /* interval duration (s) (shift) */ - -long pps_jitcnt; /* jitter limit exceeded */ -long pps_calcnt; /* calibration intervals */ -long pps_errcnt; /* calibration errors */ -long pps_stbcnt; /* stability limit exceeded */ - -/* hook for a loadable hardpps kernel module */ -void (*hardpps_ptr)(struct timeval *); - /* we call this to notify the arch when the clock is being * controlled. If no such arch routine, do nothing. */ @@ -279,7 +261,7 @@ int do_adjtimex(struct timex *txc) result = -EINVAL; goto leave; } - time_freq = txc->freq - pps_freq; + time_freq = txc->freq; } if (txc->modes & ADJ_MAXERROR) { @@ -312,10 +294,8 @@ int do_adjtimex(struct timex *txc) if ((time_next_adjust = txc->offset) == 0) time_adjust = 0; } - else if ( time_status & (STA_PLL | STA_PPSTIME) ) { - ltemp = (time_status & (STA_PPSTIME | STA_PPSSIGNAL)) == - (STA_PPSTIME | STA_PPSSIGNAL) ? - pps_offset : txc->offset; + else if (time_status & STA_PLL) { + ltemp = txc->offset; /* * Scale the phase adjustment and @@ -356,23 +336,14 @@ int do_adjtimex(struct timex *txc) } time_freq = min(time_freq, time_tolerance); time_freq = max(time_freq, -time_tolerance); - } /* STA_PLL || STA_PPSTIME */ + } /* STA_PLL */ } /* txc->modes & ADJ_OFFSET */ if (txc->modes & ADJ_TICK) { tick_usec = txc->tick; tick_nsec = TICK_USEC_TO_NSEC(tick_usec); } } /* txc->modes */ -leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0 - || ((time_status & (STA_PPSFREQ|STA_PPSTIME)) != 0 - && (time_status & STA_PPSSIGNAL) == 0) - /* p. 24, (b) */ - || ((time_status & (STA_PPSTIME|STA_PPSJITTER)) - == (STA_PPSTIME|STA_PPSJITTER)) - /* p. 24, (c) */ - || ((time_status & STA_PPSFREQ) != 0 - && (time_status & (STA_PPSWANDER|STA_PPSERROR)) != 0)) - /* p. 24, (d) */ +leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0) result = TIME_ERROR; if ((txc->modes & ADJ_OFFSET_SINGLESHOT) == ADJ_OFFSET_SINGLESHOT) @@ -380,7 +351,7 @@ leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0 else { txc->offset = shift_right(time_offset, SHIFT_UPDATE); } - txc->freq = time_freq + pps_freq; + txc->freq = time_freq; txc->maxerror = time_maxerror; txc->esterror = time_esterror; txc->status = time_status; @@ -388,14 +359,16 @@ leave: if ((time_status & (STA_UNSYNC|STA_CLOCKERR)) != 0 txc->precision = time_precision; txc->tolerance = time_tolerance; txc->tick = tick_usec; - txc->ppsfreq = pps_freq; - txc->jitter = pps_jitter >> PPS_AVG; - txc->shift = pps_shift; - txc->stabil = pps_stabil; - txc->jitcnt = pps_jitcnt; - txc->calcnt = pps_calcnt; - txc->errcnt = pps_errcnt; - txc->stbcnt = pps_stbcnt; + + /* PPS is not implemented, so these are zero */ + txc->ppsfreq = 0; + txc->jitter = 0; + txc->shift = 0; + txc->stabil = 0; + txc->jitcnt = 0; + txc->calcnt = 0; + txc->errcnt = 0; + txc->stbcnt = 0; write_sequnlock_irq(&xtime_lock); do_gettimeofday(&txc->time); notify_arch_cmos_timer(); diff --git a/kernel/timer.c b/kernel/timer.c index 13fa72cac7d..ab189dd187c 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -697,18 +697,9 @@ static void second_overflow(void) /* * Compute the frequency estimate and additional phase adjustment due - * to frequency error for the next second. When the PPS signal is - * engaged, gnaw on the watchdog counter and update the frequency - * computed by the pll and the PPS signal. + * to frequency error for the next second. */ - pps_valid++; - if (pps_valid == PPS_VALID) { /* PPS signal lost */ - pps_jitter = MAXTIME; - pps_stabil = MAXFREQ; - time_status &= ~(STA_PPSSIGNAL | STA_PPSJITTER | - STA_PPSWANDER | STA_PPSERROR); - } - ltemp = time_freq + pps_freq; + ltemp = time_freq; time_adj += shift_right(ltemp,(SHIFT_USEC + SHIFT_HZ - SHIFT_SCALE)); #if HZ == 100 |