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>

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c
index 2273c815941f..8c1c610c9513 100644
--- a/drivers/usb/host/whci/debug.c
+++ b/drivers/usb/host/whci/debug.c
@@ -31,17 +31,29 @@ 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);
+                   qset->qh.info1, qset->qh.info2,  qset->qh.info3);
+        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);
+                   qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options);
 
         for (i = 0; i < WHCI_QSET_TD_MAX; i++) {
                 seq_printf(s, "  %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n",