#include <u.h>#include <libc.h>#include <thread.h>#include <bio.h>#include "usb.h" static char *type[] ={	[Econtrol]		"Control",	[Eiso]		"Isochronous",	[Ebulk]		"Bulk",	[Eintr]		"Interrupt",}; static char *isotype[] ={	[Eunknown]	"",	[Easync]		" (Asynchronous)",	[Eadapt]		" (Adaptive)",	[Esync]		" (Synchronous)",}; voiddumpstring(int fd, char *prefix, Device *d, int index){	char *s; 	if(index == 0)		return;	s = d->strings[index];	if(s == nil)		fprint(fd, "%s<string %d>\n", prefix, index);	else		fprint(fd, "%s%s\n", prefix, s);} voiddumpdesc(int fd, char *prefix, Ddesc *desc){	uchar *p;	int i, j, len; 	if(desc->ndesc == 0)		return;	fprint(fd, "%s%d descriptors\n", prefix, desc->ndesc);	p = desc->data;	for(i = 0; i < desc->ndesc; i++) {		fprint(fd, "%s\t", prefix);		len = *p++;		for(j = 1; j < len; j++)			fprint(fd, "%.2ux ", *p++);		fprint(fd, "\n");	}} voiddumpdevice(int fd, Device *d){	int i, j, k;	Dconf *c;	Dinf *intf;	Dalt *alt;	Endpt *ep; 	fprint(fd, "device %D: %lud.%lud.%lud %.4x/%.4x\n",		d, Class(d->csp), Subclass(d->csp), Proto(d->csp), d->vid, d->did);	fprint(fd, "\tUSB version: %x.%.2x\n", d->vers>>8, d->vers&0xff);	fprint(fd, "\tmaximum control packet size: %d\n", d->max0);	fprint(fd, "\tdevice release: %x.%.2x\n", d->release>>8, d->release&0xff);	dumpstring(fd, "\tmanufacturer: ", d, d->manufacturer);	dumpstring(fd, "\tproduct: ", d, d->product);	dumpstring(fd, "\tserial: ", d, d->serial);	fprint(fd, "\tconfigurations: %d\n", d->nconf);	for(i = 0; i < d->nconf; i++) {		c = &d->config[i];		fprint(fd, "\t\tconfiguration %d: %d interfaces, %dmA required\n", c->cval, c->nif, c->milliamps);		dumpstring(fd, "\t\tname: ", d, c->config);		fprint(fd, "\t\tattributes:");		if(c->attrib & Cbuspowered)			fprint(fd, " buspowered");		if(c->attrib & Cselfpowered)			fprint(fd, " selfpowered");		if(c->attrib & Cremotewakeup)			fprint(fd, " remotewakeup");		fprint(fd, "\n");		dumpdesc(fd, "\t\t\t", &c->desc);		for(j = 0; j < c->nif; j++) {			intf = &c->iface[j];			fprint(fd, "\t\tinterface %d: %lud.%lud.%lud\n", j, Class(intf->csp), Subclass(intf->csp), Proto(intf->csp));			dumpstring(fd, "\t\tname: ", d, intf->interface);			for(alt = intf->alt; alt != nil; alt = alt->next) {				fprint(fd, "\t\t\talternate %d: %d endpoints\n", alt->alt, alt->npt);				dumpdesc(fd, "\t\t\t\t", &alt->desc);				for(k = 0; k < alt->npt; k++) {					ep = &alt->ep[k];					fprint(2, "\t\t\t\tendpoint %d-%s: type %s%s maxpkt %d poll %dms\n",						ep->addr, ep->dir == Ein ? "in" : "out", type[ep->type], isotype[ep->isotype],						ep->maxpkt, ep->pollms);					dumpdesc(fd, "\t\t\t\t\t", &ep->desc);				}			}		}	}}