Clean up deleted files.
This commit is contained in:
mycroft
parent
6ea80db90c
commit
c9b7e4389f
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@ -1,504 +0,0 @@
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: clock.c 1.18 91/01/21$
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*
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* @(#)clock.c 7.6 (Berkeley) 5/7/91
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* $Id: clock.c,v 1.7 1994/02/22 02:05:25 chopps Exp $
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <amiga/amiga/custom.h>
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#include <amiga/amiga/cia.h>
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#include <machine/psl.h>
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#include <machine/cpu.h>
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#if defined(PROF) && defined(PROFTIMER)
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#include <sys/PROF.h>
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#endif
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/* the clocks run at NTSC: 715.909kHz or PAL: 709.379kHz.
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We're using a 100 Hz clock. */
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#define CLK_INTERVAL (715909 / 100)
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/*
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* Machine-dependent clock routines.
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*
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* Startrtclock restarts the real-time clock, which provides
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* hardclock interrupts to kern_clock.c.
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*
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* Inittodr initializes the time of day hardware which provides
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* date functions.
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*
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* Resettodr restores the time of day hardware after a time change.
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*
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* A note on the real-time clock:
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* We actually load the clock with CLK_INTERVAL-1 instead of CLK_INTERVAL.
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* This is because the counter decrements to zero after N+1 enabled clock
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* periods where N is the value loaded into the counter.
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*/
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/*
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* Start the real-time clock.
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*/
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void
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startrtclock()
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{
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unsigned short interval;
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/* stop timer A */
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ciab.cra = ciab.cra & 0xc0;
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/* load interval into registers.
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the clocks run at NTSC: 715.909kHz or PAL: 709.379kHz */
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interval = CLK_INTERVAL - 1;
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/* order of setting is important ! */
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ciab.talo = interval & 0xff;
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ciab.tahi = interval >> 8;
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/* DON'T enable interrupts here !! (see cpu.h) */
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}
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void
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enablertclock()
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{
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/* enable interrupts for timer A */
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ciab.icr = (1<<7) | (1<<0);
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/* start timer A in continuous shot mode */
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ciab.cra = (ciab.cra & 0xc0) | 1;
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/* and globally enable interrupts for ciab */
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custom.intena = INTF_SETCLR | INTF_EXTER;
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}
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/*
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* Returns number of usec since last recorded clock "tick"
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* (i.e. clock interrupt).
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*/
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clkread()
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{
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u_char hi, hi2, lo;
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u_int interval;
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hi = ciab.tahi;
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lo = ciab.talo;
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hi2 = ciab.tahi;
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if (hi != hi2)
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{
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lo = ciab.talo;
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hi = hi2;
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}
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interval = (CLK_INTERVAL - 1) - ((hi<<8) | lo);
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/* should read ICR and if there's an int pending, adjust interval. However,
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since reading ICR clears the interrupt, we'd lose a hardclock int, and
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this is not tolerable. */
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return (interval * tick) / CLK_INTERVAL;
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}
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int
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DELAY (mic)
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int mic;
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{
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u_long n;
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short hpos;
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/* busy-poll for mic microseconds. This is *no* general timeout function,
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it's meant for timing in hardware control, and as such, may not lower
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interrupt priorities to really `sleep'. */
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/* this function uses HSync pulses as base units. The custom chips
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display only deals with 31.6kHz/2 refresh, this gives us a
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resolution of 1/15800 s, which is ~63us (add some fuzz so we really
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wait awhile, even if using small timeouts) */
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n = mic/63 + 2;
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do
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{
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hpos = custom.vhposr & 0xff00;
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while (hpos == (custom.vhposr & 0xff00)) ;
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}
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while (n--);
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}
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#if notyet
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/* implement this later. I'd suggest using both timers in CIA-A, they're
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not yet used. */
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#include "clock.h"
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#if NCLOCK > 0
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/*
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* /dev/clock: mappable high resolution timer.
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*
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* This code implements a 32-bit recycling counter (with a 4 usec period)
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* using timers 2 & 3 on the 6840 clock chip. The counter can be mapped
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* RO into a user's address space to achieve low overhead (no system calls),
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* high-precision timing.
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*
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* Note that timer 3 is also used for the high precision profiling timer
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* (PROFTIMER code above). Care should be taken when both uses are
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* configured as only a token effort is made to avoid conflicting use.
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*/
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <vm/vm.h>
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#include <amiga/amiga/clockioctl.h>
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#include <sys/specdev.h>
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#include <sys/vnode.h>
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#include <sys/mman.h>
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int clockon = 0; /* non-zero if high-res timer enabled */
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#ifdef PROFTIMER
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int profprocs = 0; /* # of procs using profiling timer */
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#endif
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#ifdef DEBUG
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int clockdebug = 0;
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#endif
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/*ARGSUSED*/
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clockopen(dev, flags)
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dev_t dev;
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{
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#ifdef PROFTIMER
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#ifdef PROF
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/*
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* Kernel profiling enabled, give up.
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*/
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if (profiling)
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return(EBUSY);
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#endif
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/*
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* If any user processes are profiling, give up.
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*/
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if (profprocs)
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return(EBUSY);
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#endif
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if (!clockon) {
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startclock();
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clockon++;
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}
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return(0);
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}
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/*ARGSUSED*/
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clockclose(dev, flags)
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dev_t dev;
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{
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(void) clockunmmap(dev, (caddr_t)0, curproc); /* XXX */
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stopclock();
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clockon = 0;
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return(0);
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}
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/*ARGSUSED*/
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clockioctl(dev, cmd, data, flag, p)
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dev_t dev;
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caddr_t data;
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struct proc *p;
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{
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int error = 0;
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switch (cmd) {
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case CLOCKMAP:
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error = clockmmap(dev, (caddr_t *)data, p);
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break;
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case CLOCKUNMAP:
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error = clockunmmap(dev, *(caddr_t *)data, p);
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break;
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case CLOCKGETRES:
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*(int *)data = CLK_RESOLUTION;
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break;
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default:
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error = EINVAL;
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break;
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}
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return(error);
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}
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/*ARGSUSED*/
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clockmap(dev, off, prot)
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dev_t dev;
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{
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return((off + (INTIOBASE+CLKBASE+CLKSR-1)) >> PGSHIFT);
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}
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clockmmap(dev, addrp, p)
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dev_t dev;
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caddr_t *addrp;
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struct proc *p;
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{
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int error;
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struct vnode vn;
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struct specinfo si;
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int flags;
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flags = MAP_FILE|MAP_SHARED;
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if (*addrp)
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flags |= MAP_FIXED;
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else
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*addrp = (caddr_t)0x1000000; /* XXX */
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vn.v_type = VCHR; /* XXX */
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vn.v_specinfo = &si; /* XXX */
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vn.v_rdev = dev; /* XXX */
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error = vm_mmap(&p->p_vmspace->vm_map, (vm_offset_t *)addrp,
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PAGE_SIZE, VM_PROT_ALL, flags, (caddr_t)&vn, 0);
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return(error);
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}
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clockunmmap(dev, addr, p)
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dev_t dev;
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caddr_t addr;
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struct proc *p;
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{
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int rv;
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if (addr == 0)
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return(EINVAL); /* XXX: how do we deal with this? */
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rv = vm_deallocate(p->p_vmspace->vm_map, (vm_offset_t)addr, PAGE_SIZE);
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return(rv == KERN_SUCCESS ? 0 : EINVAL);
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}
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startclock()
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{
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register struct clkreg *clk = (struct clkreg *)clkstd[0];
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clk->clk_msb2 = -1; clk->clk_lsb2 = -1;
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clk->clk_msb3 = -1; clk->clk_lsb3 = -1;
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clk->clk_cr2 = CLK_CR3;
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clk->clk_cr3 = CLK_OENAB|CLK_8BIT;
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clk->clk_cr2 = CLK_CR1;
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clk->clk_cr1 = CLK_IENAB;
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}
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stopclock()
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{
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register struct clkreg *clk = (struct clkreg *)clkstd[0];
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clk->clk_cr2 = CLK_CR3;
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clk->clk_cr3 = 0;
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clk->clk_cr2 = CLK_CR1;
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clk->clk_cr1 = CLK_IENAB;
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}
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#endif
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#endif
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#ifdef PROFTIMER
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/*
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* This code allows the amiga kernel to use one of the extra timers on
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* the clock chip for profiling, instead of the regular system timer.
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* The advantage of this is that the profiling timer can be turned up to
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* a higher interrupt rate, giving finer resolution timing. The profclock
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* routine is called from the lev6intr in locore, and is a specialized
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* routine that calls addupc. The overhead then is far less than if
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* hardclock/softclock was called. Further, the context switch code in
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* locore has been changed to turn the profile clock on/off when switching
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* into/out of a process that is profiling (startprofclock/stopprofclock).
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* This reduces the impact of the profiling clock on other users, and might
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* possibly increase the accuracy of the profiling.
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*/
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int profint = PRF_INTERVAL; /* Clock ticks between interrupts */
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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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initprofclock()
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{
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#if NCLOCK > 0
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struct proc *p = curproc; /* XXX */
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/*
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* If the high-res timer is running, force profiling off.
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* Unfortunately, this gets reflected back to the user not as
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* an error but as a lack of results.
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*/
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if (clockon) {
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p->p_stats->p_prof.pr_scale = 0;
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return;
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}
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/*
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* Keep track of the number of user processes that are profiling
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* by checking the scale value.
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*
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* XXX: this all assumes that the profiling code is well behaved;
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* i.e. profil() is called once per process with pcscale non-zero
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* to turn it on, and once with pcscale zero to turn it off.
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* Also assumes you don't do any forks or execs. Oh well, there
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* is always adb...
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*/
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if (p->p_stats->p_prof.pr_scale)
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profprocs++;
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else
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profprocs--;
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#endif
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/*
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* The profile interrupt interval must be an even divisor
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* of the CLK_INTERVAL so that scaling from a system clock
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* tick to a profile clock tick is possible using integer math.
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*/
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if (profint > CLK_INTERVAL || (CLK_INTERVAL % profint) != 0)
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profint = CLK_INTERVAL;
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profscale = CLK_INTERVAL / profint;
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}
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|
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startprofclock()
|
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{
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unsigned short interval;
|
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/* stop timer B */
|
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ciab.crb = ciab.crb & 0xc0;
|
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|
||||
/* load interval into registers.
|
||||
the clocks run at NTSC: 715.909kHz or PAL: 709.379kHz */
|
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interval = profint - 1;
|
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|
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/* order of setting is important ! */
|
||||
ciab.tblo = interval & 0xff;
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ciab.tbhi = interval >> 8;
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|
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/* enable interrupts for timer B */
|
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ciab.icr = (1<<7) | (1<<1);
|
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|
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/* start timer B in continuous shot mode */
|
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ciab.crb = (ciab.crb & 0xc0) | 1;
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}
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stopprofclock()
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{
|
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/* stop timer B */
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ciab.crb = ciab.crb & 0xc0;
|
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}
|
||||
|
||||
#ifdef PROF
|
||||
/*
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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.
|
||||
*/
|
||||
profclock(pc, ps)
|
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caddr_t pc;
|
||||
int ps;
|
||||
{
|
||||
/*
|
||||
* Came from user mode.
|
||||
* If this process is being profiled record the tick.
|
||||
*/
|
||||
if (USERMODE(ps)) {
|
||||
if (p->p_stats.p_prof.pr_scale)
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addupc(pc, &curproc->p_stats.p_prof, 1);
|
||||
}
|
||||
/*
|
||||
* Came from kernel (supervisor) mode.
|
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* If we are profiling the kernel, record the tick.
|
||||
*/
|
||||
else if (profiling < 2) {
|
||||
register int s = pc - s_lowpc;
|
||||
|
||||
if (s < s_textsize)
|
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kcount[s / (HISTFRACTION * sizeof (*kcount))]++;
|
||||
}
|
||||
/*
|
||||
* Kernel profiling was on but has been disabled.
|
||||
* Mark as no longer profiling kernel and if all profiling done,
|
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* disable the clock.
|
||||
*/
|
||||
if (profiling && (profon & PRF_KERNEL)) {
|
||||
profon &= ~PRF_KERNEL;
|
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if (profon == PRF_NONE)
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stopprofclock();
|
||||
}
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* this is a hook set by a clock driver for the configured realtime clock,
|
||||
returning plain current unix-time */
|
||||
long (*gettod) () = 0;
|
||||
long (*settod) () = 0;
|
||||
|
||||
/*
|
||||
* Initialize the time of day register, based on the time base which is, e.g.
|
||||
* from a filesystem.
|
||||
*/
|
||||
inittodr(base)
|
||||
time_t base;
|
||||
{
|
||||
u_long timbuf = base; /* assume no battery clock exists */
|
||||
|
||||
if (! gettod)
|
||||
printf ("WARNING: no battery clock\n");
|
||||
else
|
||||
timbuf = gettod ();
|
||||
|
||||
if (timbuf < base)
|
||||
{
|
||||
printf ("WARNING: bad date in battery clock\n");
|
||||
timbuf = base;
|
||||
}
|
||||
|
||||
/* Battery clock does not store usec's, so forget about it. */
|
||||
time.tv_sec = timbuf;
|
||||
}
|
||||
|
||||
resettodr()
|
||||
{
|
||||
if (settod)
|
||||
if (settod (time.tv_sec) != 1)
|
||||
printf("Cannot set battery backed clock\n");
|
||||
}
|
||||
|
|
@ -1,46 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 1989 University of Utah.
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* the Systems Programming Group of the University of Utah Computer
|
||||
* Science Department.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: Utah $Hdr: clockioctl.h 1.1 90/07/09$
|
||||
*
|
||||
* @(#)clockioctl.h 7.2 (Berkeley) 11/2/90
|
||||
* $Id: clockioctl.h,v 1.4 1994/02/11 06:59:27 chopps Exp $
|
||||
*/
|
||||
|
||||
#define CLOCKMAP _IOWR('C', 1, int)
|
||||
#define CLOCKUNMAP _IOW('C', 2, int)
|
||||
#define CLOCKGETRES _IOR('C', 3, int)
|
||||
Loading…
Reference in New Issue