timeout+sleep changed to tsleep
This commit is contained in:
Andrey A. Chernov
parent
de0edfd4e3
commit
1e064bd4be
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=766
@ -4,7 +4,7 @@
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* v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993
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* modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>
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*
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* $Id: spkr.c,v 1.3 1993/10/16 13:46:21 rgrimes Exp $
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* $Id: spkr.c,v 1.4 1993/11/09 02:32:30 ache Exp $
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*/
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#include "speaker.h"
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@ -12,16 +12,13 @@
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#if NSPEAKER > 0
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#include "param.h"
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#include "systm.h"
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#include "kernel.h"
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#include "errno.h"
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#include "buf.h"
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#include "uio.h"
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#include "machine/speaker.h"
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#ifdef HZ
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#undef HZ
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#endif
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#define HZ hz
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#include "machine/speaker.h"
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/**************** MACHINE DEPENDENT PART STARTS HERE *************************
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*
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@ -62,22 +59,18 @@
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*/
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#define TIMER_CLK 1193180L /* corresponds to 18.2 MHz tick rate */
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static int endtone()
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/* turn off the speaker, ending current tone */
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{
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wakeup((caddr_t)endtone);
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outb(PPI, inb(PPI) & ~PPI_SPKR);
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}
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#define SPKRPRI PSOCK
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static char endtone, endrest;
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static void tone(hz, ticks)
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/* emit tone of frequency hz for given number of ticks */
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unsigned int hz, ticks;
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static int tone(thz, ticks)
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/* emit tone of frequency thz for given number of ticks */
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unsigned int thz, ticks;
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{
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unsigned int divisor = TIMER_CLK / hz;
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int sps;
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unsigned int divisor = TIMER_CLK / thz;
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int sps, error;
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#ifdef DEBUG
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(void) printf("tone: hz=%d ticks=%d\n", hz, ticks);
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(void) printf("tone: thz=%d ticks=%d\n", thz, ticks);
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#endif /* DEBUG */
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/* set timer to generate clicks at given frequency in Hertz */
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@ -95,20 +88,21 @@ unsigned int hz, ticks;
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* This is so other processes can execute while the tone is being
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* emitted.
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*/
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timeout((caddr_t)endtone, (caddr_t)NULL, ticks);
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(void) sleep((caddr_t)endtone, PZERO - 1);
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while ((error = tsleep((caddr_t)&endtone,
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SPKRPRI | PCATCH, "spkrtone", ticks)) == ERESTART)
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;
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outb(PPI, inb(PPI) & ~PPI_SPKR);
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if (error == EWOULDBLOCK)
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error = 0;
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return error;
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}
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static int endrest()
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/* end a rest */
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{
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wakeup((caddr_t)endrest);
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}
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static void rest(ticks)
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static int rest(ticks)
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/* rest for given number of ticks */
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int ticks;
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{
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int error;
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/*
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* Set timeout to endrest function, then give up the timeslice.
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* This is so other processes can execute while the rest is being
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@ -117,8 +111,12 @@ int ticks;
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#ifdef DEBUG
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(void) printf("rest: %d\n", ticks);
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#endif /* DEBUG */
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timeout((caddr_t)endrest, (caddr_t)NULL, ticks);
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(void) sleep((caddr_t)endrest, PZERO - 1);
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while ((error = tsleep((caddr_t)&endrest,
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SPKRPRI | PCATCH, "spkrrest", ticks)) == ERESTART)
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;
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if (error == EWOULDBLOCK)
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error = 0;
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return error;
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}
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/**************** PLAY STRING INTERPRETER BEGINS HERE **********************
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@ -187,18 +185,19 @@ static int pitchtab[] =
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static void playinit()
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{
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octave = DFLT_OCTAVE;
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whole = (HZ * SECS_PER_MIN * WHOLE_NOTE) / DFLT_TEMPO;
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whole = (hz * SECS_PER_MIN * WHOLE_NOTE) / DFLT_TEMPO;
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fill = NORMAL;
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value = DFLT_VALUE;
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octtrack = FALSE;
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octprefix = TRUE; /* act as though there was an initial O(n) */
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}
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static void playtone(pitch, value, sustain)
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static int playtone(pitch, value, sustain)
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/* play tone of proper duration for current rhythm signature */
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int pitch, value, sustain;
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{
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register int sound, silence, snum = 1, sdenom = 1;
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int error;
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/* this weirdness avoids floating-point arithmetic */
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for (; sustain; sustain--)
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@ -209,7 +208,7 @@ int pitch, value, sustain;
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}
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if (pitch == -1)
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rest(whole * snum / (value * sdenom));
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error = rest(whole * snum / (value * sdenom));
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else
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{
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sound = (whole * snum) / (value * sdenom)
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@ -221,10 +220,12 @@ int pitch, value, sustain;
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pitch, sound, silence);
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#endif /* DEBUG */
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tone(pitchtab[pitch], sound);
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error = tone(pitchtab[pitch], sound);
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if (error) return error;
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if (fill != LEGATO)
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rest(silence);
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error = rest(silence);
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}
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return error;
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}
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static int abs(n)
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@ -236,12 +237,13 @@ int n;
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return(n);
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}
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static void playstring(cp, slen)
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static int playstring(cp, slen)
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/* interpret and play an item from a notation string */
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char *cp;
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size_t slen;
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{
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int pitch, oldfill, lastpitch = OCTAVE_NOTES * DFLT_OCTAVE;
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int error;
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#define GETNUM(cp, v) for(v=0; isdigit(cp[1]) && slen > 0; ) \
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{v = v * 10 + (*++cp - '0'); slen--;}
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@ -319,9 +321,10 @@ size_t slen;
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}
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/* time to emit the actual tone */
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playtone(pitch, timeval, sustain);
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error = playtone(pitch, timeval, sustain);
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fill = oldfill;
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if (error) return error;
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break;
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case 'O':
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@ -372,8 +375,9 @@ size_t slen;
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++cp;
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slen--;
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}
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playtone(pitch - 1, value, sustain);
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error = playtone(pitch - 1, value, sustain);
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fill = oldfill;
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if (error) return error;
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break;
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case 'L':
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@ -393,14 +397,15 @@ size_t slen;
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slen--;
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sustain++;
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}
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playtone(-1, timeval, sustain);
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error = playtone(-1, timeval, sustain);
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if (error) return error;
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break;
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case 'T':
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GETNUM(cp, tempo);
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if (tempo < MIN_TEMPO || tempo > MAX_TEMPO)
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tempo = DFLT_TEMPO;
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whole = (HZ * SECS_PER_MIN * WHOLE_NOTE) / tempo;
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whole = (hz * SECS_PER_MIN * WHOLE_NOTE) / tempo;
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break;
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case 'M':
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@ -425,6 +430,7 @@ size_t slen;
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break;
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}
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}
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return 0;
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}
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/******************* UNIX DRIVER HOOKS BEGIN HERE **************************
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@ -481,7 +487,7 @@ struct uio *uio;
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n = uio->uio_resid;
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cp = spkr_inbuf->b_un.b_addr;
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if (!(error = uiomove(cp, n, uio)))
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playstring(cp, n);
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error = playstring(cp, n);
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return(error);
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}
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}
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@ -497,7 +503,8 @@ dev_t dev;
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return(ENXIO);
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else
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{
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endtone();
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wakeup((caddr_t)&endtone);
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wakeup((caddr_t)&endrest);
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brelse(spkr_inbuf);
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spkr_active = FALSE;
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return(0);
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@ -520,10 +527,9 @@ caddr_t cmdarg;
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tone_t *tp = (tone_t *)cmdarg;
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if (tp->frequency == 0)
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rest(tp->duration);
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return rest(tp->duration);
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else
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tone(tp->frequency, tp->duration);
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return(0);
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return tone(tp->frequency, tp->duration);
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}
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else if (cmd == SPKRTUNE)
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{
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@ -538,9 +544,11 @@ caddr_t cmdarg;
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if (ttp.duration == 0)
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break;
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if (ttp.frequency == 0)
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rest(ttp.duration);
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error = rest(ttp.duration);
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else
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tone(ttp.frequency, ttp.duration);
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error = tone(ttp.frequency, ttp.duration);
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if (error)
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return(error);
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}
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return(0);
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}
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@ -4,7 +4,7 @@
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* v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993
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* modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>
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*
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* $Id: spkr.c,v 1.3 1993/10/16 13:46:21 rgrimes Exp $
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* $Id: spkr.c,v 1.4 1993/11/09 02:32:30 ache Exp $
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*/
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#include "speaker.h"
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@ -12,16 +12,13 @@
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#if NSPEAKER > 0
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#include "param.h"
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#include "systm.h"
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#include "kernel.h"
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#include "errno.h"
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#include "buf.h"
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#include "uio.h"
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#include "machine/speaker.h"
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#ifdef HZ
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#undef HZ
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#endif
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#define HZ hz
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#include "machine/speaker.h"
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/**************** MACHINE DEPENDENT PART STARTS HERE *************************
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*
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@ -62,22 +59,18 @@
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*/
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#define TIMER_CLK 1193180L /* corresponds to 18.2 MHz tick rate */
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static int endtone()
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/* turn off the speaker, ending current tone */
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{
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wakeup((caddr_t)endtone);
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outb(PPI, inb(PPI) & ~PPI_SPKR);
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}
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#define SPKRPRI PSOCK
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static char endtone, endrest;
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static void tone(hz, ticks)
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/* emit tone of frequency hz for given number of ticks */
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unsigned int hz, ticks;
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static int tone(thz, ticks)
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/* emit tone of frequency thz for given number of ticks */
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unsigned int thz, ticks;
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{
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unsigned int divisor = TIMER_CLK / hz;
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int sps;
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unsigned int divisor = TIMER_CLK / thz;
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int sps, error;
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#ifdef DEBUG
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(void) printf("tone: hz=%d ticks=%d\n", hz, ticks);
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(void) printf("tone: thz=%d ticks=%d\n", thz, ticks);
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#endif /* DEBUG */
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/* set timer to generate clicks at given frequency in Hertz */
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@ -95,20 +88,21 @@ unsigned int hz, ticks;
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* This is so other processes can execute while the tone is being
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* emitted.
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*/
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timeout((caddr_t)endtone, (caddr_t)NULL, ticks);
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(void) sleep((caddr_t)endtone, PZERO - 1);
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while ((error = tsleep((caddr_t)&endtone,
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SPKRPRI | PCATCH, "spkrtone", ticks)) == ERESTART)
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;
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outb(PPI, inb(PPI) & ~PPI_SPKR);
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if (error == EWOULDBLOCK)
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error = 0;
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return error;
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}
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static int endrest()
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/* end a rest */
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{
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wakeup((caddr_t)endrest);
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}
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static void rest(ticks)
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static int rest(ticks)
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/* rest for given number of ticks */
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int ticks;
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{
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int error;
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/*
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* Set timeout to endrest function, then give up the timeslice.
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* This is so other processes can execute while the rest is being
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@ -117,8 +111,12 @@ int ticks;
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#ifdef DEBUG
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(void) printf("rest: %d\n", ticks);
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#endif /* DEBUG */
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timeout((caddr_t)endrest, (caddr_t)NULL, ticks);
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(void) sleep((caddr_t)endrest, PZERO - 1);
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while ((error = tsleep((caddr_t)&endrest,
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SPKRPRI | PCATCH, "spkrrest", ticks)) == ERESTART)
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;
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if (error == EWOULDBLOCK)
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error = 0;
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return error;
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}
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/**************** PLAY STRING INTERPRETER BEGINS HERE **********************
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@ -187,18 +185,19 @@ static int pitchtab[] =
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static void playinit()
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{
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octave = DFLT_OCTAVE;
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whole = (HZ * SECS_PER_MIN * WHOLE_NOTE) / DFLT_TEMPO;
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whole = (hz * SECS_PER_MIN * WHOLE_NOTE) / DFLT_TEMPO;
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fill = NORMAL;
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value = DFLT_VALUE;
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octtrack = FALSE;
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octprefix = TRUE; /* act as though there was an initial O(n) */
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}
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static void playtone(pitch, value, sustain)
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static int playtone(pitch, value, sustain)
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/* play tone of proper duration for current rhythm signature */
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int pitch, value, sustain;
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{
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register int sound, silence, snum = 1, sdenom = 1;
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int error;
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/* this weirdness avoids floating-point arithmetic */
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for (; sustain; sustain--)
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@ -209,7 +208,7 @@ int pitch, value, sustain;
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}
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if (pitch == -1)
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rest(whole * snum / (value * sdenom));
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error = rest(whole * snum / (value * sdenom));
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else
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{
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sound = (whole * snum) / (value * sdenom)
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@ -221,10 +220,12 @@ int pitch, value, sustain;
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pitch, sound, silence);
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#endif /* DEBUG */
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tone(pitchtab[pitch], sound);
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error = tone(pitchtab[pitch], sound);
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if (error) return error;
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if (fill != LEGATO)
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rest(silence);
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error = rest(silence);
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}
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return error;
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}
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static int abs(n)
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@ -236,12 +237,13 @@ int n;
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return(n);
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}
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static void playstring(cp, slen)
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static int playstring(cp, slen)
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/* interpret and play an item from a notation string */
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char *cp;
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size_t slen;
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{
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int pitch, oldfill, lastpitch = OCTAVE_NOTES * DFLT_OCTAVE;
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int error;
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#define GETNUM(cp, v) for(v=0; isdigit(cp[1]) && slen > 0; ) \
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{v = v * 10 + (*++cp - '0'); slen--;}
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@ -319,9 +321,10 @@ size_t slen;
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}
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/* time to emit the actual tone */
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playtone(pitch, timeval, sustain);
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error = playtone(pitch, timeval, sustain);
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fill = oldfill;
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if (error) return error;
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break;
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case 'O':
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@ -372,8 +375,9 @@ size_t slen;
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++cp;
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slen--;
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}
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playtone(pitch - 1, value, sustain);
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error = playtone(pitch - 1, value, sustain);
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fill = oldfill;
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if (error) return error;
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break;
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case 'L':
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@ -393,14 +397,15 @@ size_t slen;
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slen--;
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sustain++;
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}
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playtone(-1, timeval, sustain);
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error = playtone(-1, timeval, sustain);
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if (error) return error;
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break;
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case 'T':
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GETNUM(cp, tempo);
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if (tempo < MIN_TEMPO || tempo > MAX_TEMPO)
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tempo = DFLT_TEMPO;
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whole = (HZ * SECS_PER_MIN * WHOLE_NOTE) / tempo;
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whole = (hz * SECS_PER_MIN * WHOLE_NOTE) / tempo;
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break;
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case 'M':
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@ -425,6 +430,7 @@ size_t slen;
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break;
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}
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}
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return 0;
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}
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/******************* UNIX DRIVER HOOKS BEGIN HERE **************************
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@ -481,7 +487,7 @@ struct uio *uio;
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n = uio->uio_resid;
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cp = spkr_inbuf->b_un.b_addr;
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if (!(error = uiomove(cp, n, uio)))
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playstring(cp, n);
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error = playstring(cp, n);
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return(error);
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}
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}
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@ -497,7 +503,8 @@ dev_t dev;
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return(ENXIO);
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else
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{
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endtone();
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wakeup((caddr_t)&endtone);
|
||||
wakeup((caddr_t)&endrest);
|
||||
brelse(spkr_inbuf);
|
||||
spkr_active = FALSE;
|
||||
return(0);
|
||||
@ -520,10 +527,9 @@ caddr_t cmdarg;
|
||||
tone_t *tp = (tone_t *)cmdarg;
|
||||
|
||||
if (tp->frequency == 0)
|
||||
rest(tp->duration);
|
||||
return rest(tp->duration);
|
||||
else
|
||||
tone(tp->frequency, tp->duration);
|
||||
return(0);
|
||||
return tone(tp->frequency, tp->duration);
|
||||
}
|
||||
else if (cmd == SPKRTUNE)
|
||||
{
|
||||
@ -538,9 +544,11 @@ caddr_t cmdarg;
|
||||
if (ttp.duration == 0)
|
||||
break;
|
||||
if (ttp.frequency == 0)
|
||||
rest(ttp.duration);
|
||||
error = rest(ttp.duration);
|
||||
else
|
||||
tone(ttp.frequency, ttp.duration);
|
||||
error = tone(ttp.frequency, ttp.duration);
|
||||
if (error)
|
||||
return(error);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user