Move existing boards into subdits split per arch

1 files changed, 0 insertions, 951 deletions

diff --git a/os/pc/devusb.c b/os/pc/devusb.c
deleted file mode 100644
index 56a3442a..00000000
--- a/os/pc/devusb.c
+++ /dev/null
@@ -1,951 +0,0 @@
-#include	"u.h"
-#include	"../port/lib.h"
-#include	"mem.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"io.h"
-#include	"../port/error.h"
-
-#include	"usb.h"
-
-static int debug = 0;
-
-#define Chatty	1
-#define DPRINT if(Chatty)print
-#define XPRINT if(debug)iprint
-
-Usbhost*	usbhost[MaxUsb];
-
-static char *devstates[] = {
-	[Disabled]		"Disabled",
-	[Attached]	"Attached",
-	[Enabled]		"Enabled",
-	[Assigned]	"Assigned",
-	[Configured]	"Configured",
-};
-
-static	char	Ebadusbmsg[] = "invalid parameters to USB ctl message";
-
-enum
-{
-	Qtopdir = 0,
-	Q2nd,
-	Qnew,
-	Qport,
-	Q3rd,
-	Qctl,
-	Qstatus,
-	Qep0,
-	/* other endpoint files */
-};
-
-/*
- * Qid path is:
- *	8 bits of file type (qids above)
- *	8 bits of slot number; default address 0 used for per-controller files
- *	4 bits of controller number
- */
-enum {
-	TYPEBITS	= 8,
-	SLOTBITS	= 8,
-	CTLRBITS	= 4,
-
-	SLOTSHIFT	= TYPEBITS,
-	CTLRSHIFT	= SLOTSHIFT+SLOTBITS,
-
-	TYPEMASK	= (1<<TYPEBITS)-1,
-	SLOTMASK	= (1<<SLOTBITS)-1,
-	CTLRMASK	= (1<<CTLRBITS)-1,
-};
-
-#define	TYPE(q)		(((ulong)(q).path)&TYPEMASK)
-#define	SLOT(q)		((((ulong)(q).path)>>SLOTSHIFT)&SLOTMASK)
-#define	CTLR(q)		((((ulong)(q).path)>>CTLRSHIFT)&CTLRMASK)
-#define	PATH(t, s, c)	((t)|((s)<<SLOTSHIFT)|((c)<<CTLRSHIFT))
-
-static Dirtab usbdir2[] = {
-	"new",	{Qnew},			0,	0666,
-	"port",	{Qport},			0,	0666,
-};
-
-static Dirtab usbdir3[]={
-	"ctl",		{Qctl},			0,	0666,
-	"status",	{Qstatus},			0,	0444,
-	"setup",	{Qep0},			0,	0666,
-	/* epNdata names are generated on demand */
-};
-
-enum
-{
-	PMdisable,
-	PMenable,
-	PMreset,
-};
-
-enum
-{
-	CMclass,
-	CMdata,
-	CMdebug,
-	CMep,
-	CMmaxpkt,
-	CMadjust,
-	CMspeed,
-	CMunstall,
-};
-
-static Cmdtab usbportmsg[] =
-{
-	PMdisable,	"disable",	2,
-	PMenable,		"enable",	2,
-	PMreset,		"reset",	2,
-};
-
-static Cmdtab usbctlmsg[] =
-{
-	CMclass,		"class",	0,
-	CMdata,		"data",	3,
-	CMdebug,		"debug",	3,
-	CMep,		"ep",		6,
-	CMmaxpkt,	"maxpkt",	3,
-	CMadjust,		"adjust",	3,
-	CMspeed,		"speed",	2,
-	CMunstall,	"unstall",	2,
-};
-
-static struct
-{
-	char*	type;
-	int	(*reset)(Usbhost*);
-} usbtypes[MaxUsb+1];
-
-void
-addusbtype(char* t, int (*r)(Usbhost*))
-{
-	static int ntype;
-
-	if(ntype == MaxUsb)
-		panic("too many USB host interface types");
-	usbtypes[ntype].type = t;
-	usbtypes[ntype].reset = r;
-	ntype++;
-}
-
-static Udev*
-usbdeviceofslot(Usbhost *uh, int s)
-{
-	if(s < 0 || s > nelem(uh->dev))
-		return nil;
-	return uh->dev[s];
-}
-
-static Udev*
-usbdevice(Chan *c)
-{
-	int bus;
-	Udev *d;
-	Usbhost *uh;
-
-	bus = CTLR(c->qid);
-	if(bus > nelem(usbhost) || (uh = usbhost[bus]) == nil) {
-		error(Egreg);
-		return nil;		/* for compiler */
-	}
-	d = usbdeviceofslot(uh, SLOT(c->qid));
-	if(d == nil || d->id != c->qid.vers || d->state == Disabled)
-		error(Ehungup);
-	return d;
-}
-
-static Endpt *
-devendpt(Udev *d, int id, int add)
-{
-	Usbhost *uh;
-	Endpt *e, **p;
-
-	p = &d->ep[id&0xF];
-	lock(d);
-	e = *p;
-	if(e != nil){
-		incref(e);
-		XPRINT("incref(0x%p) in devendpt, new value %ld\n", e, e->ref);
-		unlock(d);
-		return e;
-	}
-	unlock(d);
-	if(!add)
-		return nil;
-
-	e = mallocz(sizeof(*e), 1);
-	e->ref = 1;
-	e->x = id&0xF;
-	e->id = id;
-	e->sched = -1;
-	e->maxpkt = 8;
-	e->nbuf = 1;
-	e->dev = d;
-	e->active = 0;
-
-	uh = d->uh;
-	uh->epalloc(uh, e);
-
-	lock(d);
-	if(*p != nil){
-		incref(*p);
-		XPRINT("incref(0x%p) in devendpt, new value %ld\n", *p, (*p)->ref);
-		unlock(d);
-		uh->epfree(uh, e);
-		free(e);
-		return *p;
-	}
-	*p = e;
-	unlock(d);
-	e->rq = qopen(8*1024, 0, nil, e);
-	e->wq = qopen(8*1024, 0, nil, e);
-	return e;
-}
-
-static void
-freept(Endpt *e)
-{
-	Usbhost *uh;
-
-	if(e != nil && decref(e) == 0){
-		XPRINT("freept(%d,%d)\n", e->dev->x, e->x);
-		uh = e->dev->uh;
-		uh->epclose(uh, e);
-		e->dev->ep[e->x] = nil;
-		uh->epfree(uh, e);
-		free(e);
-	}
-}
-
-static Udev*
-usbnewdevice(Usbhost *uh)
-{
-	int i;
-	Udev *d;
-	Endpt *e;
-
-	d = nil;
-	qlock(uh);
-	if(waserror()){
-		qunlock(uh);
-		nexterror();
-	}
-	for(i=0; i<nelem(uh->dev); i++)
-		if(uh->dev[i] == nil){
-			uh->idgen++;
-			d = mallocz(sizeof(*d), 1);
-			d->uh = uh;
-			d->ref = 1;
-			d->x = i;
-			d->id = (uh->idgen << 8) | i;
-			d->state = Enabled;
-			XPRINT("calling devendpt in usbnewdevice\n");
-			e = devendpt(d, 0, 1);	/* always provide control endpoint 0 */
-			e->mode = ORDWR;
-			e->iso = 0;
-			e->sched = -1;
-			uh->dev[i] = d;
-			break;
-		}
-	poperror();
-	qunlock(uh);
-	return d;
-}
-
-static void
-freedev(Udev *d, int ept)
-{
-	int i;
-	Endpt *e;
-	Usbhost *uh;
-
-	uh = d->uh;
-	if(decref(d) == 0){
-		XPRINT("freedev 0x%p, 0\n", d);
-		for(i=0; i<nelem(d->ep); i++)
-			freept(d->ep[i]);
-		if(d->x >= 0)
-			uh->dev[d->x] = nil;
-		free(d);
-	} else {
-		if(ept >= 0 && ept < nelem(d->ep)){
-			e = d->ep[ept];
-			XPRINT("freedev, freept 0x%p\n", e);
-			if(e != nil)
-				uh->epclose(uh, e);
-		}
-	}	
-}
-
-static int
-usbgen(Chan *c, char *, Dirtab*, int, int s, Dir *dp)
-{
-	Qid q;
-	Udev *d;
-	Endpt *e;
-	Dirtab *tab;
-	Usbhost *uh;
-	int t, bus, slot, perm;
-
-	/*
-	 * Top level directory contains the controller names.
-	 */
-	if(c->qid.path == Qtopdir){
-		if(s == DEVDOTDOT){
-			mkqid(&q, Qtopdir, 0, QTDIR);
-			devdir(c, q, "#U", 0, eve, 0555, dp);
-			return 1;
-		}
-		if(s >= nelem(usbhost) || usbhost[s] == nil)
-			return -1;
-		mkqid(&q, PATH(Q2nd, 0, s), 0, QTDIR);
-		snprint(up->genbuf, sizeof up->genbuf, "usb%d", s);
-		devdir(c, q, up->genbuf, 0, eve, 0555, dp);
-		return 1;
-	}
-	bus = CTLR(c->qid);
-	if(bus >= nelem(usbhost) || (uh = usbhost[bus]) == nil)
-			return -1;
-
-	/*
-	 * Second level contains "new", "port", and a numbered
-	 * directory for each enumerated device on the bus.
-	 */
-	t = TYPE(c->qid);
-	if(t < Q3rd){
-		if(s == DEVDOTDOT){
-			mkqid(&q, Qtopdir, 0, QTDIR);
-			devdir(c, q, "#U", 0, eve, 0555, dp);
-			return 1;
-		}
-		if(s < nelem(usbdir2)){
-			d = uh->dev[0];
-			if(d == nil)
-				return -1;
-			tab = &usbdir2[s];
-			mkqid(&q, PATH(tab->qid.path, 0, bus), d->id, QTFILE);
-			devdir(c, q, tab->name, tab->length, eve, tab->perm, dp);
-			return 1;
-		}
-		s -= nelem(usbdir2);
-		if(s >= 0 && s < nelem(uh->dev)) {
-			d = uh->dev[s];
-			if(d == nil)
-				return 0;
-			sprint(up->genbuf, "%d", s);
-			mkqid(&q, PATH(Q3rd, s, bus), d->id, QTDIR);
-			devdir(c, q, up->genbuf, 0, eve, 0555, dp);
-			return 1;
-		}
-		return -1;
-	}
-
-	/*
-	 * Third level.
-	 */
-	slot = SLOT(c->qid);
-	if(s == DEVDOTDOT) {
-		mkqid(&q, PATH(Q2nd, 0, bus), c->qid.vers, QTDIR);
-		snprint(up->genbuf, sizeof up->genbuf, "usb%d", bus);
-		devdir(c, q, up->genbuf, 0, eve, 0555, dp);
-		return 1;
-	}
-	if(s < nelem(usbdir3)) {
-		tab = &usbdir3[s];
-		mkqid(&q, PATH(tab->qid.path, slot, bus), c->qid.vers, QTFILE);
-		devdir(c, q, tab->name, tab->length, eve, tab->perm, dp);
-		return 1;
-	}
-	s -= nelem(usbdir3);
-
-	/* active endpoints */
-	d = usbdeviceofslot(uh, slot);
-	if(d == nil || s >= nelem(d->ep))
-		return -1;
-	if(s == 0 || (e = d->ep[s]) == nil)	/* ep0data is called "setup" */
-		return 0;
-	sprint(up->genbuf, "ep%ddata", s);
-	mkqid(&q, PATH(Qep0+s, slot, bus), c->qid.vers, QTFILE);
-	switch(e->mode) {
-	case OREAD:
-		perm = 0444;
-		break;
-	case OWRITE:
-		perm = 0222;
-		break;
-	default:
-		perm = 0666;
-		break;
-	}
-	devdir(c, q, up->genbuf, e->buffered, eve, perm, dp);
-	return 1;
-}
-
-static Usbhost*
-usbprobe(int cardno, int ctlrno)
-{
-	Usbhost *uh;
-	char buf[128], *ebuf, name[64], *p, *type;
-
-	uh = malloc(sizeof(Usbhost));
-	memset(uh, 0, sizeof(Usbhost));
-	uh->tbdf = BUSUNKNOWN;
-
-	if(cardno < 0){
-		if(isaconfig("usb", ctlrno, uh) == 0){
-			free(uh);
-			return nil;
-		}
-		for(cardno = 0; usbtypes[cardno].type; cardno++){
-			type = uh->type;
-			if(type==nil || *type==0)
-				type = "uhci";
-			if(cistrcmp(usbtypes[cardno].type, type))
-				continue;
-			break;
-		}
-	}
-
-	if(cardno >= MaxUsb || usbtypes[cardno].type == nil){
-		free(uh);
-		return nil;
-	}
-	if(usbtypes[cardno].reset(uh) < 0){
-		free(uh);
-		return nil;
-	}
-
-	/*
-	 * IRQ2 doesn't really exist, it's used to gang the interrupt
-	 * controllers together. A device set to IRQ2 will appear on
-	 * the second interrupt controller as IRQ9.
-	 */
-	if(uh->irq == 2)
-		uh->irq = 9;
-	snprint(name, sizeof(name), "usb%d", ctlrno);
-	intrenable(uh->irq, uh->interrupt, uh, uh->tbdf, name);
-
-	ebuf = buf + sizeof buf;
-	p = seprint(buf, ebuf, "#U/usb%d: %s: port 0x%luX irq %d", ctlrno, usbtypes[cardno].type, uh->port, uh->irq);
-	if(uh->mem)
-		p = seprint(p, ebuf, " addr 0x%luX", PADDR(uh->mem));
-	if(uh->size)
-		seprint(p, ebuf, " size 0x%luX", uh->size);
-	print("%s\n", buf);
-
-	return uh;
-}
-
-static void
-usbreset(void)
-{
-	int cardno, ctlrno;
-	Usbhost *uh;
-
-	for(ctlrno = 0; ctlrno < MaxUsb; ctlrno++){
-		if((uh = usbprobe(-1, ctlrno)) == nil)
-			continue;
-		usbhost[ctlrno] = uh;
-	}
-
-	if(getconf("*nousbprobe"))
-		return;
-
-	cardno = ctlrno = 0;
-	while(usbtypes[cardno].type != nil && ctlrno < MaxUsb){
-		if(usbhost[ctlrno] != nil){
-			ctlrno++;
-			continue;
-		}
-		if((uh = usbprobe(cardno, ctlrno)) == nil){
-			cardno++;
-			continue;
-		}
-		usbhost[ctlrno] = uh;
-		ctlrno++;
-	}
-}
-
-void
-usbinit(void)
-{
-	Udev *d;
-	int ctlrno;
-	Usbhost *uh;
-
-	for(ctlrno = 0; ctlrno < MaxUsb; ctlrno++){
-		uh = usbhost[ctlrno];
-		if(uh == nil)
-			continue;
-		if(uh->init != 0)
-			uh->init(uh);
-
-		/* reserve device for configuration */
-		d = usbnewdevice(uh);
-		incref(d);
-		d->state = Attached;
-	}
-}
-
-Chan *
-usbattach(char *spec)
-{
-	return devattach('U', spec);
-}
-
-static Walkqid*
-usbwalk(Chan *c, Chan *nc, char **name, int nname)
-{
-	return devwalk(c, nc, name, nname, nil, 0, usbgen);
-}
-
-static int
-usbstat(Chan *c, uchar *db, int n)
-{
-	return devstat(c, db, n, nil, 0, usbgen);
-}
-
-Chan*
-usbopen(Chan *c, int omode)
-{
-	Udev *d;
-	Endpt *e;
-	int f, s, type;
-	Usbhost *uh;
-
-	if(c->qid.type == QTDIR)
-		return devopen(c, omode, nil, 0, usbgen);
-
-	f = 0;
-	type = TYPE(c->qid);
-	if(type == Qnew){
-		d = usbdevice(c);
-		d = usbnewdevice(d->uh);
-		XPRINT("usbopen, new dev 0x%p\n", d);
-		if(d == nil) {
-			XPRINT("usbopen failed (usbnewdevice)\n");
-			error(Enodev);
-		}
-		type = Qctl;
-		mkqid(&c->qid, PATH(type, d->x, CTLR(c->qid)), d->id, QTFILE);
-		f = 1;
-	}
-
-	if(type < Q3rd){
-		XPRINT("usbopen, devopen < Q3rd\n");
-		return devopen(c, omode, nil, 0, usbgen);
-	}
-
-	d = usbdevice(c);
-	uh = d->uh;
-	qlock(uh);
-	if(waserror()){
-		qunlock(uh);
-		nexterror();
-	}
-
-	switch(type){
-	case Qctl:
-		if(0&&d->busy)
-			error(Einuse);
-		d->busy = 1;
-		if(!f)
-			incref(d);
-		XPRINT("usbopen, Qctl 0x%p\n", d);
-		break;
-
-	default:
-		s = type - Qep0;
-		XPRINT("usbopen, default 0x%p, %d\n", d, s);
-		if(s >= 0 && s < nelem(d->ep)){
-			if((e = d->ep[s]) == nil) {
-				XPRINT("usbopen failed (endpoint)\n");
-				error(Enodev);
-			}
-			XPRINT("usbopen: dev 0x%p, ept 0x%p\n", d, e);
-			uh->epopen(uh, e);
-			e->foffset = 0;
-			e->toffset = 0;
-			e->poffset = 0;
-			e->buffered = 0;
-		}
-		incref(d);
-		break;
-	}
-	poperror();
-	qunlock(uh);
-	c->mode = openmode(omode);
-	c->flag |= COPEN;
-	c->offset = 0;
-	return c;
-}
-
-void
-usbclose(Chan *c)
-{
-	Udev *d;
-	int ept, type;
-	Usbhost *uh;
-
-	type = TYPE(c->qid);
-	if(c->qid.type == QTDIR || type < Q3rd)
-		return;
-	d = usbdevice(c);
-	uh = d->uh;
-	qlock(uh);
-	if(waserror()){
-		qunlock(uh);
-		nexterror();
-	}
-	if(type == Qctl)
-		d->busy = 0;
-	XPRINT("usbclose: dev 0x%p\n", d);
-	if(c->flag & COPEN){
-		ept = (type != Qctl) ? type - Qep0 : -1;
-		XPRINT("usbclose: freedev 0x%p\n", d);
-		freedev(d, ept);
-	}
-	poperror();
-	qunlock(uh);
-}
-
-static char *
-epstatus(char *s, char *se, Endpt *e, int i)
-{
-	char *p;
-
-	p = seprint(s, se, "%2d %#6.6lux %10lud bytes %10lud blocks\n", i, e->csp, e->nbytes, e->nblocks);
-	if(e->iso){
-		p = seprint(p, se, "bufsize %6d buffered %6d", e->maxpkt, e->buffered);
-		if(e->toffset)
-			p = seprint(p, se, " offset  %10lud time %19lld\n", e->toffset, e->time);
-		p = seprint(p, se, "\n");
-	}
-	return p;
-}
-
-long
-usbread(Chan *c, void *a, long n, vlong offset)
-{
-	int t, i;
-	Udev *d;
-	Endpt *e;
-	Usbhost *uh;
-	char *s, *se, *p;
-
-	if(c->qid.type == QTDIR)
-		return devdirread(c, a, n, nil, 0, usbgen);
-
-	d = usbdevice(c);
-	uh = d->uh;
-	t = TYPE(c->qid);
-
-	if(t >= Qep0) {
-		t -= Qep0;
-		if(t >= nelem(d->ep))
-			error(Eio);
-		e = d->ep[t];
-		if(e == nil || e->mode == OWRITE)
-			error(Egreg);
-		if(t == 0) {
-			if(e->iso)
-				error(Egreg);
-			e->data01 = 1;
-			n = uh->read(uh, e, a, n, 0LL);
-			if(e->setin){
-				e->setin = 0;
-				e->data01 = 1;
-				uh->write(uh, e, "", 0, 0LL, TokOUT);
-			}
-			return n;
-		}
-		return uh->read(uh, e, a, n, offset);
-	}
-
-	s = smalloc(READSTR);
-	se = s+READSTR;
-	if(waserror()){
-		free(s);
-		nexterror();
-	}
-	switch(t){
-	case Qport:
-		uh->portinfo(uh, s, se);
-		break;
-
-	case Qctl:
-		seprint(s, se, "%11d %11d\n", d->x, d->id);
-		break;
-
-	case Qstatus:
-		if (d->did || d->vid)
-			p = seprint(s, se, "%s %#6.6lux %#4.4ux %#4.4ux\n", devstates[d->state], d->csp, d->vid, d->did);
-		else
-			p = seprint(s, se, "%s %#6.6lux\n", devstates[d->state], d->csp);
-		for(i=0; i<nelem(d->ep); i++) {
-			e = d->ep[i];
-			if(e == nil)
-				continue;
-			/* TO DO: freeze e */
-			p = epstatus(p, se, e, i);
-		}
-	}
-	n = readstr(offset, a, n, s);
-	poperror();
-	free(s);
-	return n;
-}
-
-long
-usbwrite(Chan *c, void *a, long n, vlong offset)
-{
-	Udev *d;
-	Endpt *e;
-	Cmdtab *ct;
-	Cmdbuf *cb;
-	Usbhost *uh;
-	int id, nw, t, i;
-	char cmd[50];
-
-	if(c->qid.type == QTDIR)
-		error(Egreg);
-	d = usbdevice(c);
-	uh = d->uh;
-	t = TYPE(c->qid);
-	switch(t){
-	case Qport:
-		cb = parsecmd(a, n);
-		if(waserror()){
-			free(cb);
-			nexterror();
-		}
-
-		ct = lookupcmd(cb, usbportmsg, nelem(usbportmsg));
-		id = strtol(cb->f[1], nil, 0);
-		switch(ct->index){
-		case PMdisable:
-			uh->portenable(uh, id, 0);
-			break;
-		case PMenable:
-			uh->portenable(uh, id, 1);
-			break;
-		case PMreset:
-			uh->portreset(uh, id);
-			break;
-		}
-	
-		poperror();
-		free(cb);
-		return n;
-	case Qctl:
-		cb = parsecmd(a, n);
-		if(waserror()){
-			free(cb);
-			nexterror();
-		}
-
-		ct = lookupcmd(cb, usbctlmsg, nelem(usbctlmsg));
-		switch(ct->index){
-		case CMspeed:
-			d->ls = strtoul(cb->f[1], nil, 0) == 0;
-			break;
-		case CMclass:
-			if (cb->nf != 4 && cb->nf != 6)
-				cmderror(cb, Ebadusbmsg);
-			/* class #ifc ept csp ( == class subclass proto) [vendor product] */
-			d->npt = strtoul(cb->f[1], nil, 0);	/* # of interfaces */
-			i = strtoul(cb->f[2], nil, 0);		/* endpoint */
-			if (i < 0 || i >= nelem(d->ep)
-			 || d->npt > nelem(d->ep) || i >= d->npt)
-				cmderror(cb, Ebadusbmsg);
-			if (cb->nf == 6) {
-				d->vid = strtoul(cb->f[4], nil, 0);
-				d->did = strtoul(cb->f[5], nil, 0);
-			}
-			if (i == 0)
-				d->csp = strtoul(cb->f[3], nil, 0);
-			if(d->ep[i] == nil){
-				XPRINT("calling devendpt in usbwrite (CMclass)\n");
-				d->ep[i] = devendpt(d, i, 1);
-			}
-			d->ep[i]->csp = strtoul(cb->f[3], nil, 0);
-			break;
-		case CMdata:
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < 0 || i >= nelem(d->ep) || d->ep[i] == nil)
-				error(Ebadusbmsg);
-			e = d->ep[i];
-			e->data01 = strtoul(cb->f[2], nil, 0) != 0;
-			break;
-		case CMmaxpkt:
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < 0 || i >= nelem(d->ep) || d->ep[i] == nil)
-				error(Ebadusbmsg);
-			e = d->ep[i];
-			e->maxpkt = strtoul(cb->f[2], nil, 0);
-			if(e->maxpkt > 1500)
-				e->maxpkt = 1500;
-			break;
-		case CMadjust:
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < 0 || i >= nelem(d->ep) || d->ep[i] == nil)
-				error(Ebadusbmsg);
-			e = d->ep[i];
-			if (e->iso == 0)
-				error(Eperm);
-			i = strtoul(cb->f[2], nil, 0);
-			/* speed may not result in change of maxpkt */
-			if (i < (e->maxpkt-1)/e->samplesz * 1000/e->pollms
-			  || i > e->maxpkt/e->samplesz * 1000/e->pollms){
-				snprint(cmd, sizeof(cmd), "%d < %d < %d?",
-					(e->maxpkt-1)/e->samplesz * 1000/e->pollms,
-					i,
-					e->maxpkt/e->samplesz * 1000/e->pollms);
-				error(cmd);
-			}
-			e->hz = i;
-			break;
-		case CMdebug:
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < -1 || i >= nelem(d->ep) || d->ep[i] == nil)
-				error(Ebadusbmsg);
-			if (i == -1)
-				debug = 0;
-			else {
-				debug = 1;
-				e = d->ep[i];
-				e->debug = strtoul(cb->f[2], nil, 0);
-			}
-			break;
-		case CMunstall:
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < 0 || i >= nelem(d->ep) || d->ep[i] == nil)
-				error(Ebadusbmsg);
-			e = d->ep[i];
-			e->err = nil;
-			break;
-		case CMep:
-			/* ep n `bulk' mode maxpkt nbuf     OR
-			 * ep n period mode samplesize Hz
-			 */
-			i = strtoul(cb->f[1], nil, 0);
-			if(i < 0 || i >= nelem(d->ep)) {
-				XPRINT("field 1: 0 <= %d < %d\n", i, nelem(d->ep));
-				error(Ebadarg);
-			}
-			if((e = d->ep[i]) == nil){
-				XPRINT("calling devendpt in usbwrite (CMep)\n");
-				e = devendpt(d, i, 1);
-			}
-			qlock(uh);
-			if(waserror()){
-				freept(e);
-				qunlock(uh);
-				nexterror();
-			}
-			if(e->active)
-				error(Eperm);
-			if(strcmp(cb->f[2], "bulk") == 0){
-				/* ep n `bulk' mode maxpkt nbuf */
-				e->iso = 0;
-				i = strtoul(cb->f[4], nil, 0);
-				if(i < 8 || i > 1023)
-					i = 8;
-				e->maxpkt = i;
-				i = strtoul(cb->f[5], nil, 0);
-				if(i >= 1 && i <= 32)
-					e->nbuf = i;
-			} else {
-				/* ep n period mode samplesize Hz */
-				i = strtoul(cb->f[2], nil, 0);
-				if(i > 0 && i <= 1000){
-					e->pollms = i;
-				}else {
-					XPRINT("field 4: 0 <= %d <= 1000\n", i);
-					error(Ebadarg);
-				}
-				i = strtoul(cb->f[4], nil, 0);
-				if(i >= 1 && i <= 8){
-					e->samplesz = i;
-				}else {
-					XPRINT("field 4: 0 < %d <= 8\n", i);
-					error(Ebadarg);
-				}
-				i = strtoul(cb->f[5], nil, 0);
-				if(i >= 1 && i*e->samplesz <= 12*1000*1000){
-					/* Hz */
-					e->hz = i;
-					e->remain = 0;
-				}else {
-					XPRINT("field 5: 1 < %d <= 100000 Hz\n", i);
-					error(Ebadarg);
-				}
-				e->maxpkt = (e->hz * e->pollms + 999)/1000 * e->samplesz;
-				e->iso = 1;
-			}
-			e->mode = strcmp(cb->f[3],"r") == 0? OREAD :
-				  	strcmp(cb->f[3],"w") == 0? OWRITE : ORDWR;
-			uh->epmode(uh, e);
-			poperror();
-			qunlock(uh);
-		}
-	
-		poperror();
-		free(cb);
-		return n;
-
-	case Qep0:	/* SETUP endpoint 0 */
-		/* should canqlock etc */
-		e = d->ep[0];
-		if(e == nil || e->iso)
-			error(Egreg);
-		if(n < 8)
-			error(Eio);
-		nw = *(uchar*)a & RD2H;
-		e->data01 = 0;
-		n = uh->write(uh, e, a, n, 0LL, TokSETUP);
-		if(nw == 0) {	/* host to device: use IN[DATA1] to ack */
-			e->data01 = 1;
-			nw = uh->read(uh, e, cmd, 0LL, 8);
-			if(nw != 0)
-				error(Eio);	/* could provide more status */
-		}else
-			e->setin = 1;	/* two-phase */
-		break;
-
-	default:	/* sends DATA[01] */
-		t -= Qep0;
-		if(t < 0 || t >= nelem(d->ep))
-			error(Egreg);
-		e = d->ep[t];
-		if(e == nil || e->mode == OREAD)
-			error(Egreg);
-		n = uh->write(uh, e, a, n, offset, TokOUT);
-		break;
-	}
-	return n;
-}
-
-Dev usbdevtab = {
-	'U',
-	"usb",
-
-	usbreset,
-	usbinit,
-	devshutdown,
-	usbattach,
-	usbwalk,
-	usbstat,
-	usbopen,
-	devcreate,
-	usbclose,
-	usbread,
-	devbread,
-	usbwrite,
-	devbwrite,
-	devremove,
-	devwstat,
-};