ref: 7d88d76bc42e2b3f3cabde82673af4107e951797
dir: /sys/src/cmd/nusb/lib/dump.c/
#include <u.h> #include <libc.h> #include <thread.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 void fmtprintiface(Fmt *f, Iface *i) { int j; Ep *ep; char *eds, *ets; fmtprint(f, "\t\tiface csp %s.%uld.%uld alt %d\n", classname(Class(i->csp)), Subclass(i->csp), Proto(i->csp), i->alt); for(j = 0; j < nelem(i->ep); 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]; fmtprint(f, "\t\t ep id %d addr %d dir %s type %s" " attrib %x maxpkt %d ntds %d pollival %d\n", ep->id, ep->id & Epmax, eds, ets, ep->attrib, ep->maxpkt, ep->ntds, ep->pollival); } } static void fmtprintconf(Fmt *f, Usbdev *d, int ci) { int i; Conf *c; Iface *fc; char *hd; c = d->conf[ci]; fmtprint(f, "\tconf: cval %d attrib %x %d mA\n", c->cval, c->attrib, c->milliamps); for(i = 0; i < Niface; i++){ for(fc = c->iface[i]; fc != nil; fc = fc->next) fmtprintiface(f, fc); } 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); fmtprint(f, "\t\tdev desc %x[%d]: %s\n", d->ddesc[i]->data.bDescriptorType, d->ddesc[i]->data.bLength, hd); free(hd); } } int Ufmt(Fmt *f) { int i; Dev *d; Usbdev *ud; d = va_arg(f->args, Dev*); if(d == nil) return fmtprint(f, "<nildev>\n"); fmtprint(f, "%s", d->dir); ud = d->usb; if(ud == nil) return fmtprint(f, " %ld refs\n", d->ref); fmtprint(f, " csp %s.%uld.%uld", classname(Class(ud->csp)), Subclass(ud->csp), Proto(ud->csp)); fmtprint(f, " vid %#ux did %#ux", ud->vid, ud->did); fmtprint(f, " refs %ld\n", d->ref); fmtprint(f, "\t%s %s %s\n", ud->vendor, ud->product, ud->serial); for(i = 0; i < Nconf; i++){ if(ud->conf[i] == nil) break; else fmtprintconf(f, ud, i); } return 0; } 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; }