#include <u.h>#include <libc.h>#include <thread.h>#include <bio.h>#include "usb.h" int usbdebug; static char *edir[] = {"in", "out", "inout"};static char *etype[] = {"ctl", "iso", "bulk", "intr"};static char* cnames[] ={	"none", "audio", "comms", "hid", "",	"", "", "printer", "storage", "hub", "data"};static char* devstates[] ={	"detached", "attached", "enabled", "assigned", "configured"}; char*classname(int c){	static char buf[30]; 	if(c >= 0 && c < nelem(cnames))		return cnames[c];	else{		seprint(buf, buf+30, "%d", c);		return buf;	}} char *hexstr(void *a, int n){	int i;	char *dbuff, *s, *e;	uchar *b; 	b = a;	dbuff = s = emallocz(1024, 0);	*s = 0;	e = s + 1024;	for(i = 0; i < n; i++)		s = seprint(s, e, " %.2ux", b[i]);	if(s == e)		fprint(2, "%s: usb/lib: hexdump: bug: small buffer\n", argv0);	return dbuff;} static char *seprintiface(char *s, char *e, Iface *i){	int	j;	Altc	*a;	Ep	*ep;	char	*eds, *ets; 	s = seprint(s, e, "\t\tiface csp %s.%uld.%uld\n",		classname(Class(i->csp)), Subclass(i->csp), Proto(i->csp));	for(j = 0; j < Naltc; j++){		a=i->altc[j];		if(a == nil)			break;		s = seprint(s, e, "\t\t  alt %d attr %d ival %d",			j, a->attrib, a->interval);		if(a->aux != nil)			s = seprint(s, e, " devspec %p\n", a->aux);		else			s = seprint(s, e, "\n");	}	for(j = 0; j < Nep; j++){		ep = i->ep[j];		if(ep == nil)			break;		eds = ets = "";		if(ep->dir <= nelem(edir))			eds = edir[ep->dir];		if(ep->type <= nelem(etype))			ets = etype[ep->type];		s = seprint(s, e, "\t\t  ep id %d addr %d dir %s type %s"			" itype %d maxpkt %d ntds %d\n",			ep->id, ep->addr, eds, ets, ep->isotype,			ep->maxpkt, ep->ntds);	}	return s;} static char*seprintconf(char *s, char *e, Usbdev *d, int ci){	int i;	Conf *c;	char *hd; 	c = d->conf[ci];	s = seprint(s, e, "\tconf: cval %d attrib %x %d mA\n",		c->cval, c->attrib, c->milliamps);	for(i = 0; i < Niface; i++)		if(c->iface[i] == nil)			break;		else			s = seprintiface(s, e, c->iface[i]);	for(i = 0; i < Nddesc; i++)		if(d->ddesc[i] == nil)			break;		else if(d->ddesc[i]->conf == c){			hd = hexstr((uchar*)&d->ddesc[i]->data,				d->ddesc[i]->data.bLength);			s = seprint(s, e, "\t\tdev desc %x[%d]: %s\n",				d->ddesc[i]->data.bDescriptorType,				d->ddesc[i]->data.bLength, hd);			free(hd);		}	return s;} intUfmt(Fmt *f){	int i;	Dev *d;	Usbdev *ud;	char buf[1024];	char *s, *e; 	s = buf;	e = buf+sizeof(buf);	d = va_arg(f->args, Dev*);	if(d == nil)		return fmtprint(f, "<nildev>\n");	s = seprint(s, e, "%s", d->dir);	ud = d->usb;	if(ud == nil)		return fmtprint(f, "%s %ld refs\n", buf, d->ref);	s = seprint(s, e, " csp %s.%uld.%uld",		classname(Class(ud->csp)), Subclass(ud->csp), Proto(ud->csp));	s = seprint(s, e, " vid %#.4ux did %#.4ux", ud->vid, ud->did);	s = seprint(s, e, " refs %ld\n", d->ref);	s = seprint(s, e, "\t%s %s %s\n", ud->vendor, ud->product, ud->serial);	for(i = 0; i < Nconf; i++){		if(ud->conf[i] == nil)			break;		else			s = seprintconf(s, e, ud, i);	}	return fmtprint(f, "%s", buf);} char*estrdup(char *s){	char *d; 	d = strdup(s);	if(d == nil)		sysfatal("strdup: %r");	setmalloctag(d, getcallerpc(&s));	return d;} void*emallocz(ulong size, int zero){	void *x; 	x = malloc(size);	if(x == nil)		sysfatal("malloc: %r");	if(zero)		memset(x, 0, size);	setmalloctag(x, getcallerpc(&size));	return x;}