usb: whci-hcd: decode more QHead fields in the debug files

Print ep number, direction and type; and current window in asl and pzl
debugfs files.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/whci/debug.c

@@ -31,15 +31,27 @@ struct whc_dbg {
 
 void qset_print(struct seq_file *s, struct whc_qset *qset)
 {
+	static const char *qh_type[] = {
+		"ctrl", "isoc", "bulk", "intr", "rsvd", "rsvd", "rsvd", "lpintr", };
 	struct whc_std *std;
 	struct urb *urb = NULL;
 	int i;
 
-	seq_printf(s, "qset %08x\n", (u32)qset->qset_dma);
+	seq_printf(s, "qset %08x", (u32)qset->qset_dma);
+	if (&qset->list_node == qset->whc->async_list.prev) {
+		seq_printf(s, " (dummy)\n");
+	} else {
+		seq_printf(s, " ep%d%s-%s maxpkt: %d\n",
+			   qset->qh.info1 & 0x0f,
+			   (qset->qh.info1 >> 4) & 0x1 ? "in" : "out",
+			   qh_type[(qset->qh.info1 >> 5) & 0x7],
+			   (qset->qh.info1 >> 16) & 0xffff);
+	}
 	seq_printf(s, "  -> %08x\n", (u32)qset->qh.link);
 	seq_printf(s, "  info: %08x %08x %08x\n",
 		   qset->qh.info1, qset->qh.info2,  qset->qh.info3);
-	seq_printf(s, "  sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count);
+	seq_printf(s, "  sts: %04x errs: %d curwin: %08x\n",
+		   qset->qh.status, qset->qh.err_count, qset->qh.cur_window);
 	seq_printf(s, "  TD: sts: %08x opts: %08x\n",
 		   qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options);