[PATCH] ehci: add tt_usecs

This adds the field tt_usecs to ehci_qh and ehci_iso_stream, and sets it
appropriately when setting them up as periodic endpoints.  It records
the transation translator's think_time (added in last patch) plus the
downstream (i.e. low or full speed) bustime of the transfer associated
with each interrupt or iso frame, as calculated by usb_calc_bus_time.

Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index a7542157534c..20c9b550097d 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -421,6 +421,7 @@ struct ehci_qh {
         u8                      usecs;          /* intr bandwidth */
         u8                      gap_uf;         /* uframes split/csplit gap */
         u8                      c_usecs;        /* ... split completion bw */
+        u16                     tt_usecs;       /* tt downstream bandwidth */
         unsigned short          period;         /* polling interval */
         unsigned short          start;          /* where polling starts */
 #define NO_FRAME ((unsigned short)~0)                   /* pick new start */
@@ -479,6 +480,7 @@ struct ehci_iso_stream {
          */
         u8                      interval;
         u8                      usecs, c_usecs;
+        u16                     tt_usecs;
         u16                     maxp;
         u16                     raw_mask;
         unsigned                bandwidth;