Move existing boards into subdits split per arch

1 files changed, 0 insertions, 1186 deletions

diff --git a/os/js/devcs4231.c b/os/js/devcs4231.c
deleted file mode 100644
index 2e02c462..00000000
--- a/os/js/devcs4231.c
+++ /dev/null
@@ -1,1186 +0,0 @@
-/*
- * preliminary Crystal CS4231 audio driver,
- * initially based on SB16 driver, and therefore needs work.
- * for instance, i suspect the linked-list buffering is excessive:
- * a rolling buffering scheme or double buffering should be fine,
- * and possibly simpler.
- *
- * To do:
- *	stop/start?
- *	is the linux mix_cvt ideal?
- *	ad1845 differences
- *	adpcm freezing
- */
-
-#include	"u.h"
-#include	"../port/lib.h"
-#include	"mem.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"../port/error.h"
-#include	"devtab.h"
-#include	"io.h"
-#include	"audio.h"
-
-#define	DPRINT	if(chatty)print
-
-typedef struct	AChan	AChan;
-typedef struct	AQueue	AQueue;
-typedef struct	Buf	Buf;
-typedef struct	Vol	Vol;
-
-enum
-{
-	Qdir		= 0,
-	Qaudio,
-	Qaudioctl,
-
-	Fmono		= 1,
-	Fin		= 2,
-	Fout		= 4,
-
-	Vaudio		= 0,
-	Vaux1,
-	Vaux2,
-	Vline,
-	Vmic,
-	Vmono,
-	Vspeed,
-	Vchans,
-	Vbits,
-	Nvol,
-
-	Speed		= 22050,
-	Ncmd		= 50,		/* max volume command words */
-};
-
-enum {
-	Paddr=	0,
-		TRD=	1<<5,
-		MCE=	1<<6,
-	Pdata=	1,
-	Pstatus=	2,
-	Pio=		3,
-
-	LeftADC=	0,
-		MGE=	1<<5,
-		ISline=	0<<6,
-		ISaux1=	1<<6,
-		ISmic=	2<<6,
-		ISloop=	3<<6,
-		ISmask=	3<<6,
-	RightADC= 1,
-	LeftAux1= 2,
-		Mute=	1<<7,
-	RightAux1= 3,
-	LeftAux2= 4,
-	RightAux2= 5,
-	LeftDAC= 6,
-	RightDAC= 7,
-	OutFormat=	8,
-		Stereo=	1<<4,
-		Linear8=	0<<5,
-		uLaw=	1<<5,
-		Linear16=	2<<5,
-		aLaw=	3<<5,
-		ADPCM=	5<<5,
-		Fmask=	7<<5,
-	Config=	9,
-		PEN=	1<<0,
-		CEN=	1<<1,
-		Nocal=	0<<3,
-		Convcal=	1<<3,
-		DACcal=	2<<3,
-		Fullcal=	3<<3,
-	PinControl=	10,
-		IEN=		1<<1,
-		DEN=	1<<3,
-		Xctl0=	1<<6,
-		Xctl1=	1<<7,
-	Status=	11,
-		ACI=		1<<5,
-	Mode=	12,
-		Mode2=	1<<6,
-	Loopback=	13,
-		LBE=		1<<0,
-	PlayCount1=	14,
-	PlayCount0=	15,
-	Feature1=	16,
-		PMCE=	1<<4,
-		CMCE=	1<<5,
-	Feature2=	17,
-	LeftLine=	18,
-	RightLine=	19,
-	Timer0=	20,
-	Timer1=	21,
-	Feature3=	23,
-	FeatureStatus=	24,
-		PI=	1<<4,	/* playback interrupt */
-		CI=	1<<5,	/* capture interrupt */
-		TI=	1<<6,	/* timer interrupt */
-	ChipID= 25,
-	MonoCtl=	26,
-		MBY=	1<<5,	/* mono bypass */
-		MOM=	1<<6,
-	InFormat=	28,
-	RecCount1=	30,
-	RecCount0=	31,
-};
-
-#define	csdelay()	microdelay(1)
-
-static Dirtab audiodir[] =
-{
-	"audio",	{Qaudio},		0,	0666,
-	"audioctl",	{Qaudioctl},		0,	0666,
-};
-#define	NPORT		(sizeof audiodir/sizeof(Dirtab))
-
-struct Buf
-{
-	uchar*	virt;
-	int	count;
-	Buf*	next;
-};
-struct AQueue
-{
-	Lock;
-	Buf*	first;
-	Buf*	last;
-};
-struct AChan
-{
-	QLock;
-	Rendez	r;
-	Buf	buf[Nbuf];	/* buffers and queues */
-	AQueue	empty;
-	AQueue	full;
-	Buf*	current;
-	Buf*	filling;
-	int	flushing;
-};
-static struct
-{
-	QLock;
-	int	opened;
-	int	bufinit;	/* boolean if buffers allocated */
-	int	rivol[Nvol];		/* right/left input/output volumes */
-	int	livol[Nvol];
-	int	rovol[Nvol];
-	int	lovol[Nvol];
-	int	loopback;
-
-	AChan	in;
-	AChan	out;
-} audio;
-
-static	char*	encname(int);
-
-static	int	dacload(int, int);
-static	int	auxload(int, int);
-static	int	adcload(int, int);
-static	int	monoload(int, int);
-
-struct Vol
-{
-	char*	name;
-	int	flag;
-	int	ilval;		/* initial values */
-	int	irval;
-	int	reg;
-	int	(*load)(int, int);
-};
-
-static	Vol	volumes[] = {
-[Vaudio]	{"audio",	    Fout, 	50,	50,	LeftDAC, dacload},
-[Vaux1]		{"aux1",		Fin,	0,	0,	LeftAux1, auxload},
-[Vaux2]		{"aux2",		Fin,	0,	0,	LeftAux2, auxload},
-[Vline]		{"line",		Fin,	0,	0,	LeftLine, auxload},
-[Vmono]		{"mono",		Fin|Fout|Fmono,	0,	0,	MonoCtl, monoload},
-[Vmic]		{"mic",		Fin,	0,	0,	LeftADC, adcload},
-
-[Vspeed]	{"rate",	Fin|Fout|Fmono,	Speed,	Speed,},
-[Vchans]	{"chans",	Fin|Fout|Fmono,	2,	2,},
-[Vbits]	{"bits", Fin|Fout|Fmono, 8, 8,},
-	{0},
-};
-
-static struct
-{
-	Lock;
-	int	port;
-	int	irq;
-	uchar	sticky;
-	uchar	regs[32];
-} csdev;
-
-static	void	contininput(void);
-static	void	continoutput(void);
-
-static	char	Evolume[]	= "illegal audioctl specifier";
-
-static	int	chatty;
-
-#include "cs4231.h"
-
-static int
-xin(int r)
-{
-	int i;
-
-	for(i=100; --i >= 0 && IN(Paddr) & 0x80;)
-		csdelay();
-	OUT(Paddr, r|csdev.sticky);
-	csdelay();
-	return IN(Pdata);
-}
-
-static void
-xout(int r, int v)
-{
-	int i;
-
-	for(i=100; --i >= 0 && IN(Paddr) & 0x80;)
-		csdelay();
-	OUT(Paddr, r|csdev.sticky);
-	csdelay();
-	OUT(Pdata, v);
-	//csdelay();
-}
-
-static void
-speaker(int on)
-{
-	int s;
-
-	s = xin(PinControl);
-	if(on)
-		s |= Xctl0;
-	else
-		s &= ~Xctl0;
-	xout(PinControl, s);
-}
-
-static Buf*
-getbuf(AQueue *q)
-{
-	Buf *b;
-
-	ilock(q);
-	b = q->first;
-	if(b)
-		q->first = b->next;
-	iunlock(q);
-
-	return b;
-}
-
-static void
-putbuf(AQueue *q, Buf *b)
-{
-	ilock(q);
-	b->next = 0;
-	if(q->first)
-		q->last->next = b;
-	else
-		q->first = b;
-	q->last = b;
-	iunlock(q);
-}
-
-static void
-achanreset(AChan *ac)
-{
-	int i;
-
-	ac->filling = 0;
-	ac->flushing = 0;
-	ac->current = 0;
-	ac->empty.first = 0;
-	ac->empty.last = 0;
-	ac->full.first = 0;
-	ac->full.last = 0;
-	for(i=0; i<Nbuf; i++){
-		ac->buf[i].count = 0;
-		putbuf(&ac->empty, &ac->buf[i]);
-	}
-}
-
-static void
-startoutput(void)
-{
-	ilock(&csdev);
-	if(audio.out.current == 0)
-		continoutput();
-	iunlock(&csdev);
-}
-
-static void
-continoutput(void)
-{
-	Buf *b;
-	int f;
-	ulong n;
-
-	b = getbuf(&audio.out.full);
-	audio.out.current = b;
-	//xout(Config, xin(Config)&~PEN);
-	if(b){
-		n = b->count;
-		dmasetup(Wdma, b->virt, n, 0);
-		f = xin(OutFormat);
-		if((f & Fmask) == ADPCM)
-			n >>= 2;
-		else{
-			if((f & Fmask) == Linear16)
-				n >>= 1;
-			if(f & Stereo)
-				n >>= 1;
-		}
-		n--;
-		xout(PlayCount0, n);
-		xout(PlayCount1, n>>8);
-		xout(Config, xin(Config)|PEN);
-		DPRINT("cs: out %d\n", n);
-	} else
-		xout(Config, xin(Config)&~PEN);
-}
-
-static void
-startinput(void)
-{
-	ilock(&csdev);
-	if(audio.in.current == 0)
-		contininput();
-	iunlock(&csdev);
-}
-
-static void
-contininput(void)
-{
-	Buf *b;
-	int f;
-	ulong n;
-
-	xout(Config, xin(Config)&~CEN);
-	if(!audio.opened || audio.in.flushing){
-		return;
-	}
-	b = getbuf(&audio.in.empty);
-	audio.in.current = b;
-	if(b){
-		n = Bufsize;
-		dmasetup(Rdma, b->virt, Bufsize, 1);
-		f = xin(InFormat);
-		if((f & Fmask) == ADPCM)
-			n >>= 2;
-		else{
-			if((f & Fmask) == Linear16)
-				n >>= 1;
-			if(f & Stereo)
-				n >>= 1;
-		}
-		n--;
-		xout(RecCount0, n);
-		xout(RecCount1, n>>8);
-		xout(Config, xin(Config)|CEN);
-		DPRINT("cs: in %d\n", n);
-	}
-}
-
-static void
-cswait(void)
-{
-	int i;
-
-	for(i=50; --i >= 0 && IN(Paddr) & 0x80;)
-		microdelay(2000);
-	if(i < 0)
-		print("cswait1\n");
-	for(i=1000; --i >= 0 && (xin(Status) & ACI) == 0;)
-		csdelay();
-	for(i=1000; --i >= 0 && xin(Status) & ACI;)
-		microdelay(2000);
-	/* could give error(Eio) if i < 0 */
-	if(i < 0)
-		print("cswait2\n");
-}
-
-static int
-csspeed(int freq)
-{
-	int i;
-	static int freqtab[] = {	/* p. 33 CFS2-CFS0 */
-		/* xtal1 xtal2 */
-		8000, 5510,
-		16000, 11025,
-		27420, 18900,
-		32000, 22050,
-		0, 37800,
-		0, 44100,
-		48000, 33075,
-		9600, 6620,
-	};
-	for(i=0; i<16; i++)
-		if(freqtab[i] == freq){
-			xout(OutFormat, (xin(OutFormat)&~0xF) | i);
-			return 1;
-		}
-	return 0;
-}
-
-static void
-csformat(int r, int flag, int form, int *vec)
-{
-	int v;
-
-	if(form == Linear8){
-		if(vec[Vbits] == 16)
-			form = Linear16;
-		else if(vec[Vbits] == 4)
-			form = ADPCM;
-	}
-	if(vec[Vchans] == 2)
-		form |= Stereo;
-	DPRINT("csformat(%x,%x,%x)\n", r, flag, form);
-	if((xin(r)&0xF0) != form){
-		v = xin(Feature1);
-		xout(Feature1, v|flag);
-		xout(r, (xin(r)&~0xF0)|form);
-		xout(Feature1, v);
-	}
-	csdev.regs[r] = form;
-}
-
-static void
-cs4231intr(Ureg*, void*)
-{
-	int ir, s;
-	Buf *b;
-
-	lock(&csdev);
-	csdev.sticky |= TRD;
-	ir = IN(Pstatus);
-	s = xin(FeatureStatus);
-	if(s & PI){
-		b = audio.out.current;
-		audio.out.current = 0;
-		dmaend(Wdma);
-		continoutput();
-		if(b)
-			putbuf(&audio.out.empty, b);
-		wakeup(&audio.out.r);
-	}
-	if(s & CI){
-		b = audio.in.current;
-		audio.in.current = 0;
-		dmaend(Rdma);
-		contininput();
-		if(b){
-			b->count = Bufsize;
-			putbuf(&audio.in.full, b);
-		}
-		wakeup(&audio.in.r);
-	}
-	OUT(Pstatus, 0);
-	csdev.sticky &= ~TRD;
-	unlock(&csdev);
-	if(s & 0xF)
-		DPRINT("audiointr: #%x\n", s);
-}
-
-static int
-anybuf(void *p)
-{
-	return ((AChan*)p)->empty.first != 0;
-}
-
-static int
-anyinput(void *p)
-{
-	return ((AChan*)p)->full.first != 0;
-}
-
-static int
-outcomplete(void *p)
-{
-	return ((AChan*)p)->full.first == 0 && ((AChan*)p)->current==0;
-}
-
-static int
-incomplete(void *p)
-{
-	return ((AChan*)p)->current == 0;
-}
-
-static void
-acbufinit(AChan *ac)
-{
-	int i;
-	void *p;
-
-	for(i=0; i<Nbuf; i++) {
-		//p = xspanalloc(Bufsize, CACHELINESZ, 64*1024);
-		//dcflush(p, Bufsize);
-		p = xalloc(Bufsize);
-		ac->buf[i].virt = UNCACHED(uchar, p);
-	}
-}
-
-static void
-setempty(void)
-{
-	ilock(&csdev);
-	achanreset(&audio.in);
-	achanreset(&audio.out);
-	iunlock(&csdev);
-}
-
-void
-cs4231reset(void)
-{
-}
-
-static char mix_cvt[101] = {
-	0, 0,3,7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42,
-	43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65,
-	65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79,
-	80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
-	91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99,
-	100
-};
-
-static int
-dacload(int r, int v)
-{
-	USED(r);
-	DPRINT("dacload(%x,%d)\n", r, v);
-	if(v == 0)
-		return Mute;
-	return 63-((v*63)/100);
-}
-
-static int
-monoload(int r, int v)
-{
-	DPRINT("monoload(%x,%d)\n", r, v);
-	if(v == 0)
-		return r|Mute;
-	return (r&~(Mute|MBY))|(15-((v*15)/100));
-}
-
-static int
-auxload(int r, int v)
-{
-	DPRINT("auxload(%x,%d)\n", r, v);
-	USED(r);
-	if(v == 0)
-		return Mute;
-	return 31-(v*31)/100;
-}
-
-static int
-adcload(int r, int v)
-{
-	DPRINT("adcload(%x,%d)\n", r, v);
-	return (r&~0xF)|((v*15)/100)|MGE;
-}
-
-static void
-mxvolume(void)
-{
-	Vol *v;
-	int i, l, r;
-
-	ilock(&csdev);
-	speaker(0);
-	for(i =0; volumes[i].name; i++){
-		v = &volumes[i];
-		if(v->load == 0)
-			continue;
-		if(v->flag & Fin){
-			l = audio.livol[i];
-			r = audio.rivol[i];
-		} else {
-			l = audio.lovol[i];
-			r = audio.rovol[i];
-		}
-		if(l < 0)
-			l = 0;
-		if(r < 0)
-			r = 0;
-		if(l > 100)
-			l = 100;
-		if(r > 100)
-			r = 100;
-		l = mix_cvt[l];
-		r = mix_cvt[r];
-		if((v->flag & Fmono) == 0){
-			xout(v->reg, (*v->load)(xin(v->reg), l));
-			xout(v->reg+1, (*v->load)(xin(v->reg+1), r));
-		} else
-			xout(v->reg, (*v->load)(xin(v->reg), l));
-	}
-	xout(LeftADC, (xin(LeftADC)&~ISmask)|csdev.regs[LeftADC]);
-	xout(RightADC, (xin(RightADC)&~ISmask)|csdev.regs[RightADC]);
-	if(audio.loopback)
-		xout(Loopback, xin(Loopback)|LBE);
-	else
-		xout(Loopback, xin(Loopback)&~LBE);
-	csformat(InFormat, CMCE, csdev.regs[InFormat], audio.livol);
-	csformat(OutFormat, PMCE, csdev.regs[OutFormat], audio.lovol);
-	if(audio.lovol[Vaudio] || audio.rovol[Vaudio])
-		speaker(1);
-	iunlock(&csdev);
-}
-
-static void
-flushinput(void)
-{
-	Buf *b;
-
-	ilock(&csdev);
-	audio.in.flushing = 1;
-	iunlock(&csdev);
-	qlock(&audio.in);
-	if(waserror()){
-		qunlock(&audio.in);
-		nexterror();
-	}
-	sleep(&audio.in.r, incomplete, &audio.in);
-	qunlock(&audio.in);
-	poperror();
-	ilock(&csdev);
-	audio.in.flushing = 0;
-	iunlock(&csdev);
-	if((b = audio.in.filling) != 0){
-		audio.in.filling = 0;
-		putbuf(&audio.in.empty, b);
-	}
-	while((b = getbuf(&audio.in.full)) != 0)
-		putbuf(&audio.in.empty, b);
-}
-
-static void
-waitoutput(void)
-{
-	qlock(&audio.out);
-	if(waserror()){
-		qunlock(&audio.out);
-		nexterror();
-	}
-	startoutput();
-	while(!outcomplete(&audio.out))
-		sleep(&audio.out.r, outcomplete, &audio.out);
-	qunlock(&audio.out);
-	poperror();
-}
-
-static	void
-resetlevel(void)
-{
-	int i;
-
-	for(i=0; volumes[i].name; i++) {
-		audio.lovol[i] = volumes[i].ilval;
-		audio.rovol[i] = volumes[i].irval;
-		audio.livol[i] = volumes[i].ilval;
-		audio.rivol[i] = volumes[i].irval;
-	}
-}
-
-void
-cs4231init(void)
-{
-	cs4231install();
-
-	csdev.regs[LeftADC] = ISmic;
-	csdev.regs[RightADC] = ISmic;
-	dmasize(Wdma, 8);
-	dmasize(Rdma, 8);
-	csdev.sticky = 0;
-	OUT(Paddr, Mode);
-	csdelay();
-	if((IN(Pdata) & 0x8F) != 0x8a){
-		DPRINT("port %x not cs4231a: %x\n", IN(Pdata));
-		return;
-	}
-	print("audio0: cs4231a: port %x irq %d wdma %d rdma %d\n", csdev.port, csdev.irq, Wdma, Rdma);
-
-	resetlevel();
-
-	cswait();
-	OUT(Paddr, Mode);
-	csdelay();
-	OUT(Pdata, Mode2|IN(Pdata));	/* mode2 for all the trimmings */
-	csdelay();
-	cswait();
-
-	csdev.sticky = MCE;
-	xout(Config, Fullcal);
-	csspeed(volumes[Vspeed].ilval);
-	csformat(InFormat, CMCE, Linear8, audio.livol);
-	csformat(OutFormat, PMCE, Linear8, audio.lovol);
-	csdev.sticky &= ~MCE;
-	OUT(Paddr, csdev.sticky);
-	microdelay(10000);
-	cswait();	/* recalibration takes ages */
-
-	xout(FeatureStatus, 0);
-	OUT(Pstatus, 0);
-	setvec(csdev.irq, cs4231intr, 0);
-	xout(PinControl, xin(PinControl)|IEN);
-}
-
-Chan*
-cs4231attach(char *param)
-{
-	return devattach('A', param);
-}
-
-Chan*
-cs4231clone(Chan *c, Chan *nc)
-{
-	return devclone(c, nc);
-}
-
-int
-cs4231walk(Chan *c, char *name)
-{
-	return devwalk(c, name, audiodir, NPORT, devgen);
-}
-
-void
-cs4231stat(Chan *c, char *db)
-{
-	devstat(c, db, audiodir, NPORT, devgen);
-}
-
-Chan*
-cs4231open(Chan *c, int omode)
-{
-	switch(c->qid.path & ~CHDIR) {
-	default:
-		error(Eperm);
-		break;
-
-	case Qaudioctl:
-	case Qdir:
-		break;
-
-	case Qaudio:
-		qlock(&audio);
-		if(audio.opened){
-			qunlock(&audio);
-			error(Einuse);
-		}
-		if(audio.bufinit == 0) {
-			audio.bufinit = 1;
-			acbufinit(&audio.in);
-			acbufinit(&audio.out);
-		}
-		audio.opened = 1;
-		setempty();
-		qunlock(&audio);
-		mxvolume();
-		break;
-	}
-	c = devopen(c, omode, audiodir, NPORT, devgen);
-	c->mode = openmode(omode);
-	c->flag |= COPEN;
-	c->offset = 0;
-
-	return c;
-}
-
-void
-cs4231create(Chan *c, char *name, int omode, ulong perm)
-{
-	USED(c, name, omode, perm);
-	error(Eperm);
-}
-
-void
-cs4231close(Chan *c)
-{
-	Buf *b;
-
-	switch(c->qid.path & ~CHDIR) {
-	default:
-		error(Eperm);
-		break;
-
-	case Qdir:
-	case Qaudioctl:
-		break;
-
-	case Qaudio:
-		if(c->flag & COPEN) {
-			qlock(&audio);
-			audio.opened = 0;
-			if(waserror()){
-				qunlock(&audio);
-				nexterror();
-			}
-			b = audio.out.filling;
-			if(b){
-				audio.out.filling = 0;
-				putbuf(&audio.out.full, b);
-			}
-			waitoutput();
-			flushinput();
-			//tsleep(&up->sleep, return0, 0, 500);
-			//speaker(0);
-			qunlock(&audio);
-			poperror();
-		}
-		break;
-	}
-}
-
-long
-cs4231read(Chan *c, char *a, long n, vlong offset)
-{
-	int liv, riv, lov, rov, ifmt, ofmt;
-	long m, n0;
-	char buf[350];
-	Buf *b;
-	int j;
-
-	n0 = n;
-	switch(c->qid.path & ~CHDIR) {
-	default:
-		error(Eperm);
-		break;
-
-	case Qdir:
-		return devdirread(c, a, n, audiodir, NPORT, devgen);
-
-	case Qaudio:
-		qlock(&audio.in);
-		if(waserror()){
-			qunlock(&audio.in);
-			nexterror();
-		}
-		while(n > 0) {
-			b = audio.in.filling;
-			if(b == 0) {
-				b = getbuf(&audio.in.full);
-				if(b == 0) {
-					startinput();
-					sleep(&audio.in.r, anyinput, &audio.in);
-					continue;
-				}
-				audio.in.filling = b;
-				b->count = 0;
-			}
-			m = Bufsize-b->count;
-			if(m > n)
-				m = n;
-			memmove(a, b->virt+b->count, m);
-
-			b->count += m;
-			n -= m;
-			a += m;
-			if(b->count >= Bufsize) {
-				audio.in.filling = 0;
-				putbuf(&audio.in.empty, b);
-			}
-		}
-		qunlock(&audio.in);
-		poperror();
-		break;
-
-	case Qaudioctl:
-		j = 0;
-		buf[0] = 0;
-		for(m=0; volumes[m].name; m++){
-			liv = audio.livol[m];
-			riv = audio.rivol[m];
-			lov = audio.lovol[m];
-			rov = audio.rovol[m];
-			j += snprint(buf+j, sizeof(buf)-j, "%s", volumes[m].name);
-			if((volumes[m].flag & Fmono) || liv==riv && lov==rov){
-				if((volumes[m].flag&(Fin|Fout))==(Fin|Fout) && liv==lov)
-					j += snprint(buf+j, sizeof(buf)-j, " %d", liv);
-				else{
-					if(volumes[m].flag & Fin)
-						j += snprint(buf+j, sizeof(buf)-j, " in %d", liv);
-					if(volumes[m].flag & Fout)
-						j += snprint(buf+j, sizeof(buf)-j, " out %d", lov);
-				}
-			}else{
-				if((volumes[m].flag&(Fin|Fout))==(Fin|Fout) && liv==lov && riv==rov)
-					j += snprint(buf+j, sizeof(buf)-j, " left %d right %d",
-						liv, riv);
-				else{
-					if(volumes[m].flag & Fin)
-						j += snprint(buf+j, sizeof(buf)-j, " in left %d right %d",
-							liv, riv);
-					if(volumes[m].flag & Fout)
-						j += snprint(buf+j, sizeof(buf)-j, " out left %d right %d",
-							lov, rov);
-				}
-			}
-			j += snprint(buf+j, sizeof(buf)-j, "\n");
-		}
-		ifmt = xin(InFormat);
-		ofmt = xin(OutFormat);
-		if(ifmt != ofmt){
-			j += snprint(buf+j, sizeof(buf)-j, "in enc %s\n", encname(ifmt));
-			j += snprint(buf+j, sizeof(buf)-j, "out enc %s\n", encname(ofmt));
-		} else
-			j += snprint(buf+j, sizeof(buf)-j, "enc %s\n", encname(ifmt));
-		j += snprint(buf+j, sizeof(buf)-j, "loop %d\n", audio.loopback);
-		{int i; for(i=0; i<32; i++){j += snprint(buf+j, sizeof(buf)-j, " %d:%x", i, xin(i)); }j += snprint(buf+j,sizeof(buf)-j,"\n");}
-		USED(j);
-
-		return readstr(offset, a, n, buf);
-	}
-	return n0-n;
-}
-
-Block*
-cs4231bread(Chan *c, long n, ulong offset)
-{
-	return devbread(c, n, offset);
-}
-
-long
-cs4231write(Chan *c, char *a, long n, vlong offset)
-{
-	long m, n0;
-	int i, nf, v, left, right, in, out, fmt, doload;
-	char buf[255], *field[Ncmd];
-	Buf *b;
-
-	USED(offset);
-
-	n0 = n;
-	switch(c->qid.path & ~CHDIR) {
-	default:
-		error(Eperm);
-		break;
-
-	case Qaudioctl:
-		waitoutput();
-		flushinput();
-		qlock(&audio);
-		if(waserror()){
-			qunlock(&audio);
-			nexterror();
-		}
-		v = Vaudio;
-		doload = 0;
-		left = 1;
-		right = 1;
-		in = 1;
-		out = 1;
-		if(n > sizeof(buf)-1)
-			n = sizeof(buf)-1;
-		memmove(buf, a, n);
-		buf[n] = '\0';
-
-		nf = getfields(buf, field, Ncmd, 1, " \t\n,");
-		for(i = 0; i < nf; i++){
-			/*
-			 * a number is volume
-			 */
-			if(field[i][0] >= '0' && field[i][0] <= '9') {
-				m = strtoul(field[i], 0, 10);
-				if(left && out)
-					audio.lovol[v] = m;
-				if(left && in)
-					audio.livol[v] = m;
-				if(right && out)
-					audio.rovol[v] = m;
-				if(right && in)
-					audio.rivol[v] = m;
-				if(v == Vspeed){
-					ilock(&csdev);
-					csdev.sticky = MCE;
-					csspeed(m);
-					csdev.sticky &= ~MCE;
-					OUT(Paddr, csdev.sticky);
-					microdelay(10000);
-					cswait();
-					iunlock(&csdev);
-				} else
-					doload = 1;
-				continue;
-			}
-
-			for(m=0; volumes[m].name; m++) {
-				if(strcmp(field[i], volumes[m].name) == 0) {
-					v = m;
-					in = 1;
-					out = 1;
-					left = 1;
-					right = 1;
-					break;
-				}
-			}
-			if(volumes[m].name)
-				continue;
-
-			if(strcmp(field[i], "chat") == 0){
-				chatty = !chatty;
-				continue;
-			}
-
-			if(strcmp(field[i], "reset") == 0) {
-				resetlevel();
-				doload = 1;
-				continue;
-			}
-			if(strcmp(field[i], "loop") == 0) {
-				if(++i >= nf)
-					error(Evolume);
-				audio.loopback = strtoul(field[i], 0, 10);
-				doload = 1;
-				continue;
-			}
-			if(strcmp(field[i], "enc") == 0) {
-				if(++i >= nf)
-					error(Evolume);
-				fmt = -1;
-				if(strcmp(field[i], "ulaw") == 0)
-					fmt = uLaw;
-				else if(strcmp(field[i], "alaw") == 0)
-					fmt = aLaw;
-				else if(strcmp(field[i], "pcm") == 0)
-					fmt = Linear8;
-				else if(strcmp(field[i], "adpcm") == 0)
-					fmt = ADPCM;
-				else
-					error(Evolume);
-				if(in)
-					csdev.regs[InFormat] = fmt;
-				if(out)
-					csdev.regs[OutFormat] = fmt;
-				doload = 1;
-				continue;
-			}
-			if(strcmp(field[i], "dev") == 0) {
-				if(++i >= nf)
-					error(Evolume);
-				if(in){
-					fmt = -1;
-					if(strcmp(field[i], "mic") == 0)
-						fmt = ISmic;
-					else if(strcmp(field[i], "line") == 0)
-						fmt = ISline;
-					else if(strcmp(field[i], "aux1") == 0)
-						fmt = ISaux1;
-					else if(strcmp(field[i], "loop") == 0)
-						fmt = ISloop;
-					else
-						error(Evolume);
-					if(left)
-						csdev.regs[LeftADC] = fmt;
-					if(right)
-						csdev.regs[RightADC] = fmt;
-					doload = 1;
-				}
-				continue;
-			}
-			if(strcmp(field[i], "in") == 0) {
-				in = 1;
-				out = 0;
-				continue;
-			}
-			if(strcmp(field[i], "out") == 0) {
-				in = 0;
-				out = 1;
-				continue;
-			}
-			if(strcmp(field[i], "left") == 0) {
-				left = 1;
-				right = 0;
-				continue;
-			}
-			if(strcmp(field[i], "right") == 0) {
-				left = 0;
-				right = 1;
-				continue;
-			}
-			error(Evolume);
-		}
-		if(doload)
-			mxvolume();
-		qunlock(&audio);
-		poperror();
-		n=0;
-		break;
-
-	case Qaudio:
-		qlock(&audio.out);
-		if(waserror()){
-			qunlock(&audio.out);
-			nexterror();
-		}
-		while(n > 0) {
-			b = audio.out.filling;
-			if(b == 0) {
-				b = getbuf(&audio.out.empty);
-				if(b == 0) {
-					startoutput();
-					sleep(&audio.out.r, anybuf, &audio.out);
-					continue;
-				}
-				b->count = 0;
-				audio.out.filling = b;
-			}
-
-			m = Bufsize-b->count;
-			if(m > n)
-				m = n;
-			memmove(b->virt+b->count, a, m);
-
-			b->count += m;
-			n -= m;
-			a += m;
-			if(b->count >= Bufsize) {
-				audio.out.filling = 0;
-				putbuf(&audio.out.full, b);
-			}
-		}
-		qunlock(&audio.out);
-		poperror();
-		break;
-	}
-	return n0 - n;
-}
-
-long
-cs4231bwrite(Chan *c, Block *bp, ulong offset)
-{
-	return devbwrite(c, bp, offset);
-}
-
-void
-cs4231remove(Chan *c)
-{
-	USED(c);
-	error(Eperm);
-}
-
-void
-cs4231wstat(Chan *c, char *dp)
-{
-	USED(c, dp);
-	error(Eperm);
-}
-
-static char *
-encname(int v)
-{
-	switch(v & ~(0xF|Stereo)){
-	case uLaw:	return "ulaw";
-	case aLaw:	return "alaw";
-	case Linear8:	return "pcm";
-	case Linear16:	return "pcm16";
-	case ADPCM:	return "adpcm";
-	default:	return "?";
-	}
-}