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authorAlan Stern <stern@rowland.harvard.edu>2006-05-19 16:34:57 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 15:04:12 -0700
commitc433472658b4df11bd3590a59be79194a1ff43ae (patch)
tree32d48a155360c8e877be3956c9964d2d4c19a236 /drivers/usb/host/uhci-hcd.h
parent3612242e527eb47ee4756b5350f8bdf791aa5ede (diff)
downloadblackbird-obmc-linux-c433472658b4df11bd3590a59be79194a1ff43ae.tar.gz
blackbird-obmc-linux-c433472658b4df11bd3590a59be79194a1ff43ae.zip
[PATCH] UHCI: use integer-sized frame numbers
This patch (as687) changes uhci-hcd to keep track of frame numbers as full-sized integers rather than 11-bit values. This makes them a lot easier to handle and makes it possible to schedule beyond a 2-second window, should anyone ever want to do so. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.h')
-rw-r--r--drivers/usb/host/uhci-hcd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 04938e64799f..c87ceaa178b6 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -448,6 +448,9 @@ static inline struct usb_hcd *uhci_to_hcd(struct uhci_hcd *uhci)
#define uhci_dev(u) (uhci_to_hcd(u)->self.controller)
+/* Utility macro for comparing frame numbers */
+#define uhci_frame_before_eq(f1, f2) (0 <= (int) ((f2) - (f1)))
+
/*
* Private per-URB data
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