From d0384200f6b608e77fb5ddf7dfae1bf0e42c1c6e Mon Sep 17 00:00:00 2001 From: "david-b@pacbell.net" Date: Sat, 13 Aug 2005 18:44:58 -0700 Subject: [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 Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-sched.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/usb/host/ehci-sched.c') diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 4c972b57c7c..ccc7300baa6 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -700,6 +700,7 @@ iso_stream_init ( } else { u32 addr; + int think_time; addr = dev->ttport << 24; if (!ehci_is_TDI(ehci) @@ -709,6 +710,9 @@ iso_stream_init ( addr |= epnum << 8; addr |= dev->devnum; stream->usecs = HS_USECS_ISO (maxp); + think_time = dev->tt ? dev->tt->think_time : 0; + stream->tt_usecs = NS_TO_US (think_time + usb_calc_bus_time ( + dev->speed, is_input, 1, maxp)); if (is_input) { u32 tmp; -- cgit v1.2.3