Lines Matching +full:pll +full:- +full:in

7  * that the above copyright notice appears in all copies and that both the    *
8  * copyright notice and this permission notice appear in supporting           *
9  * documentation, and that the name University of Delaware not be used in     *
21  *	Added defines for hybrid phase/frequency-lock loop.
25  *	defines for PPS phase-lock loop.
45  *	ntp_gettime - NTP user application interface
52  *	int SYS_ntp_gettime		defined in syscall.h header file
56  *	ntp_adjtime - NTP daemon application interface
63  *	int SYS_ntp_adjtime		defined in syscall.h header file
76  * phase-lock loop (PLL) model used in the kernel implementation. These
80  * The hz variable is defined in the kernel build environment. It
84  * in order to avoid hardware multiply operations.
86  * SHIFT_KG and SHIFT_KF establish the damping of the PLL and are chosen
91  * MAXTC establishes the maximum time constant of the PLL. With the
93  * zero to MAXTC, the PLL will converge in 15 minutes to 16 hours,
98 #define SHIFT_KF 16		/* PLL frequency factor (shift) */
104  * used by the PLL. They are chosen to allow the greatest precision
105  * possible without overflow of a 32-bit word.
108  * which serves as a an extension to the low-order bits of the system
119  * FINEUSEC is 1 us in SHIFT_UPDATE units of the time_phase variable.
124 #define FINEUSEC (1L << SHIFT_SCALE) /* 1 us in phase units */
127  * The following defines establish the performance envelope of the PLL.
128  * They insure it operates within predefined limits, in order to satisfy
130  * clamped to the bound and operation proceeds accordingly. In practice,
132  * tolerance, but otherwise the PLL continues to operate in a stable
136  * defined in the NTP specification. CLOCK.MAX establishes the maximum
139  * MAXPHASE only in order to prevent overflow errors due to defective
169  * The following defines are used only if a pulse-per-second (PPS)
171  * produced by the optional ppsclock feature incorporated in the Sun
172  * asynch driver. They establish the design parameters of the frequency-
180  * calibration intervals, respectively, in seconds as a power of two.
206 #define MOD_TIMECONST	0x0020	/* set pll time constant */
213 #define STA_PLL		0x0001	/* enable PLL updates (rw) */
216 #define STA_FLL		0x0008	/* select frequency-lock mode (rw) */
231     STA_PPSERROR | STA_CLOCKERR) /* read-only bits */
239 #define TIME_OOP	3	/* leap second in progress */
244  * NTP user interface (ntp_gettime()) - used to read kernel clock values
256  * NTP daemon interface - (ntp_adjtime()) used to discipline CPU clock
266 	long constant;		/* pll time constant (rw) */
271 	 * The following read-only structure members are implemented
272 	 * only if the PPS signal discipline is configured in the