KNF.
This commit is contained in:
scottr
parent
d99c63563c
commit
89f7d665d5
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@ -1,4 +1,4 @@
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/* $NetBSD: clock.c,v 1.25 1996/03/12 04:34:46 scottr Exp $ */
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/* $NetBSD: clock.c,v 1.26 1996/03/12 19:18:49 scottr Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -99,9 +99,9 @@
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static int month_days[12] = {
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31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
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};
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#define DIFF19041970 2082844800
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#define DIFF19701990 630720000
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#define DIFF19702010 1261440000
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#define DIFF19041970 2082844800
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#define DIFF19701990 630720000
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#define DIFF19702010 1261440000
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/*
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* Mac II machine-dependent clock routines.
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@ -112,12 +112,13 @@ static int month_days[12] = {
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*
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* We use VIA1 timer 1.
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*/
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void
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startrtclock(void)
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void
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startrtclock()
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{
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/* BARF MF startrt clock is called twice in init_main, configure,
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the reason why is doced in configure */
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/*
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* BARF MF startrt clock is called twice in init_main, configure,
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* the reason why is doced in configure
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*/
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/* be certain clock interrupts are off */
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via_reg(VIA1, vIER) = V1IF_T1;
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@ -134,7 +135,7 @@ startrtclock(void)
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}
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void
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enablertclock(void)
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enablertclock()
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{
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/* clear then enable clock interrupt. */
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via_reg(VIA1, vIFR) |= V1IF_T1;
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@ -142,18 +143,19 @@ enablertclock(void)
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}
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void
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cpu_initclocks(void)
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cpu_initclocks()
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{
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enablertclock();
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}
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void
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setstatclockrate(int rateinhz)
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setstatclockrate()
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int rateinhz;
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{
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}
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void
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disablertclock(void)
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disablertclock()
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{
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/* disable clock interrupt */
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via_reg(VIA1, vIER) = V1IF_T1;
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@ -165,7 +167,7 @@ disablertclock(void)
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* Check high byte twice to prevent missing a roll-over.
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* (race condition?)
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*/
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u_long
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u_long
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clkread()
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{
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register int high, high2, low;
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@ -199,12 +201,12 @@ int profscale = 0; /* Scale factor from sys clock to prof clock */
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char profon = 0; /* Is profiling clock on? */
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/* profon values - do not change, locore.s assumes these values */
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#define PRF_NONE 0x00
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#define PRF_USER 0x01
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#define PRF_KERNEL 0x80
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#define PRF_NONE 0x00
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#define PRF_USER 0x01
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#define PRF_KERNEL 0x80
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void
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initprofclock(void)
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void
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initprofclock()
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{
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/* profile interval must be even divisor of system clock interval */
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if (profint > CLK_INTERVAL)
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@ -220,8 +222,8 @@ initprofclock(void)
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profintlow = profint & 0xff;
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}
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void
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startprofclock(void)
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void
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startprofclock()
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{
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via_reg(VIA2, vT1L) = (profint - 1) & 0xff;
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via_reg(VIA2, vT1LH) = (profint - 1) >> 8;
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@ -230,8 +232,8 @@ startprofclock(void)
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via_reg(VIA2, vT1CH) = (profint - 1) >> 8;
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}
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void
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stopprofclock(void)
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void
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stopprofclock()
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{
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via_reg(VIA2, vT1L) = 0;
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via_reg(VIA2, vT1LH) = 0;
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@ -246,21 +248,22 @@ stopprofclock(void)
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* profclock() is expanded in line in lev6intr() unless profiling kernel.
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* Assumes it is called with clock interrupts blocked.
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*/
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void
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profclock(clockframe * pclk)
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void
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profclock(pclk)
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clockframe *pclk;
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{
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/*
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* Came from user mode.
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* If this process is being profiled record the tick.
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*/
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* Came from user mode.
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* If this process is being profiled record the tick.
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*/
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if (USERMODE(pclk->ps)) {
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if (p->p_stats.p_prof.pr_scale)
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addupc_task(&curproc, pclk->pc, 1);
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}
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/*
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* Came from kernel (supervisor) mode.
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* If we are profiling the kernel, record the tick.
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*/
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* Came from kernel (supervisor) mode.
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* If we are profiling the kernel, record the tick.
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*/
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else
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if (profiling < 2) {
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register int s = pclk->pc - s_lowpc;
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@ -269,10 +272,10 @@ profclock(clockframe * pclk)
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kcount[s / (HISTFRACTION * sizeof(*kcount))]++;
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}
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/*
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* Kernel profiling was on but has been disabled.
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* Mark as no longer profiling kernel and if all profiling done,
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* disable the clock.
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*/
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* Kernel profiling was on but has been disabled.
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* Mark as no longer profiling kernel and if all profiling done,
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* disable the clock.
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*/
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if (profiling && (profon & PRF_KERNEL)) {
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profon &= ~PRF_KERNEL;
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if (profon == PRF_NONE)
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@ -286,34 +289,36 @@ profclock(clockframe * pclk)
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* Convert GMT to Mac PRAM time, using global timezone
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* GMT bias adjustment is done elsewhere.
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*/
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static u_long
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ugmt_2_pramt(u_long t)
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static u_long
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ugmt_2_pramt(t)
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u_long t;
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{
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/* don't know how to open a file properly. */
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/* assume compiled timezone is correct. */
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return (t = t + DIFF19041970 - 60*tz.tz_minuteswest);
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return (t = t + DIFF19041970 - 60 * tz.tz_minuteswest);
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}
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/*
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* Convert a Mac PRAM time value to GMT, using compiled-in timezone
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* GMT bias adjustment is done elsewhere.
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*/
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static u_long
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pramt_2_ugmt(u_long t)
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static u_long
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pramt_2_ugmt(t)
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u_long t;
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{
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return (t = t - DIFF19041970 + 60*tz.tz_minuteswest);
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return (t = t - DIFF19041970 + 60 * tz.tz_minuteswest);
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}
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/*
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* Time from the booter.
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*/
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u_long macos_boottime;
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u_long macos_boottime;
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/*
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* Bias in minutes east from GMT (also from booter).
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*/
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long macos_gmtbias;
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long macos_gmtbias;
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/*
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* Flag for whether or not we can trust the PRAM. If we don't
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@ -321,25 +326,26 @@ long macos_gmtbias;
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* that is passed from the booter (which will only be a second
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* or two off by now).
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*/
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int mac68k_trust_pram = 1;
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int mac68k_trust_pram = 1;
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/*
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* Set global GMT time register, using a file system time base for comparison
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* and sanity checking.
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*/
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void
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inittodr(time_t base)
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void
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inittodr(base)
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time_t base;
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{
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u_long timbuf;
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u_long pramtime;
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u_long timbuf;
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u_long pramtime;
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timbuf = pramt_2_ugmt(pram_readtime());
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if ((timbuf - (macos_boottime + 60 * tz.tz_minuteswest)) > 10 * 60) {
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#if DIAGNOSTIC
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printf(
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"PRAM time does not appear to have been read correctly.\n");
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"PRAM time does not appear to have been read correctly.\n");
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printf("PRAM: 0x%x, macos_boottime: 0x%x.\n",
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timbuf, macos_boottime + 60 * tz.tz_minuteswest);
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timbuf, macos_boottime + 60 * tz.tz_minuteswest);
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#endif
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timbuf = macos_boottime;
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mac68k_trust_pram = 0;
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@ -347,7 +353,7 @@ inittodr(time_t base)
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#ifdef DIAGNOSTIC
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else
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printf("PRAM: 0x%x, macos_boottime: 0x%x.\n",
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timbuf, macos_boottime);
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timbuf, macos_boottime);
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#endif
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/*
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@ -385,8 +391,8 @@ inittodr(time_t base)
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* Set battery backed clock to a new time, presumably after someone has
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* changed system time.
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*/
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void
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resettodr(void)
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void
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resettodr()
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{
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if (mac68k_trust_pram)
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/*
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@ -401,7 +407,6 @@ resettodr(void)
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"to the pram on this system.\n");
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#endif
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}
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/*
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* The Macintosh timers decrement once every 1.2766 microseconds.
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* MGFH2, p. 180
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@ -411,8 +416,8 @@ resettodr(void)
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#define DELAY_CALIBRATE (0xffffff << 7) /* Large value for calibration */
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#define LARGE_DELAY 0x40000 /* About 335 msec */
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unsigned delay_factor = DELAY_CALIBRATE;
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volatile int delay_flag = 1;
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unsigned delay_factor = DELAY_CALIBRATE;
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volatile int delay_flag = 1;
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/*
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* delay(usec)
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@ -434,8 +439,7 @@ delay(usec)
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else
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cycles = ((usec > 0 ? usec : 1) * delay_factor) >> 7;
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while ((cycles-- > 0) && delay_flag)
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;
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while ((cycles-- > 0) && delay_flag);
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}
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/*
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@ -453,8 +457,7 @@ dummy_delay(usec)
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else
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cycles = ((usec > 0 ? usec : 1) * delay_factor) >> 7;
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while ((cycles-- > 0) && delay_flag)
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;
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while ((cycles-- > 0) && delay_flag);
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return ((delay_factor >> 7) - cycles);
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}
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@ -480,7 +483,7 @@ mac68k_calibrate_delay()
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/* Set the timer for one-shot mode, then clear and enable interrupts */
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via_reg(VIA1, vACR) &= ~ACR_T1LATCH;
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via_reg(VIA1, vIFR) = V1IF_T1; /* (this is needed for IIsi) */
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via_reg(VIA1, vIFR) = V1IF_T1; /* (this is needed for IIsi) */
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via_reg(VIA1, vIER) = 0x80 | V1IF_T1;
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for (sum = 0, n = 8; n > 0; n--) {
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@ -501,7 +504,7 @@ mac68k_calibrate_delay()
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* delay_factor = ((sum / 8) / (1024 * 1.2766)) * 128;
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* That is, average the sum, divide by the number of usec,
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* and multiply by a scale factor of 128.
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*
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*
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* We can accomplish the same thing by simplifying and using
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* shifts, being careful to avoid as much loss of precision
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* as possible. (If the sum exceeds UINT_MAX/10000, we need
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