From owner-p4-projects@FreeBSD.ORG  Mon Aug  3 07:09:43 2009
Return-Path: <owner-p4-projects@FreeBSD.ORG>
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id 1297E1065674; Mon,  3 Aug 2009 07:09:43 +0000 (UTC)
Delivered-To: perforce@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C7039106564A
	for <perforce@FreeBSD.org>; Mon,  3 Aug 2009 07:09:42 +0000 (UTC)
	(envelope-from hselasky@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id B4AE78FC18
	for <perforce@FreeBSD.org>; Mon,  3 Aug 2009 07:09:42 +0000 (UTC)
	(envelope-from hselasky@FreeBSD.org)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id n7379g6h070529
	for <perforce@FreeBSD.org>; Mon, 3 Aug 2009 07:09:42 GMT
	(envelope-from hselasky@FreeBSD.org)
Received: (from perforce@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id n7379gRE070527
	for perforce@freebsd.org; Mon, 3 Aug 2009 07:09:42 GMT
	(envelope-from hselasky@FreeBSD.org)
Date: Mon, 3 Aug 2009 07:09:42 GMT
Message-Id: <200908030709.n7379gRE070527@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: perforce set sender to
	hselasky@FreeBSD.org using -f
From: Hans Petter Selasky <hselasky@FreeBSD.org>
To: Perforce Change Reviews <perforce@FreeBSD.org>
Cc: 
Subject: PERFORCE change 166957 for review
X-BeenThere: p4-projects@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: p4 projects tree changes <p4-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/p4-projects>
List-Post: <mailto:p4-projects@freebsd.org>
List-Help: <mailto:p4-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 03 Aug 2009 07:09:43 -0000

http://perforce.freebsd.org/chv.cgi?CH=166957

Change 166957 by hselasky@hselasky_laptop001 on 2009/08/03 07:09:06

	
	USB input:
	 - patch for cordump slowdown. Use microtime() instead of DELAY().

Affected files ...

.. //depot/projects/usb/src/sys/dev/usb/input/ukbd.c#25 edit

Differences ...

==== //depot/projects/usb/src/sys/dev/usb/input/ukbd.c#25 (text+ko) ====

@@ -170,6 +170,7 @@
 	int32_t	sc_state;		/* shift/lock key state */
 	int32_t	sc_accents;		/* accent key index (> 0) */
 
+	uint16_t sc_microtime;		/* used when polling */
 	uint16_t sc_inputs;
 	uint16_t sc_inputhead;
 	uint16_t sc_inputtail;
@@ -302,18 +303,32 @@
 static void
 ukbd_do_poll(struct ukbd_softc *sc, uint8_t wait)
 {
+	struct timeval tv;
+	uint16_t temp;
+
 	DPRINTFN(2, "polling\n");
 
 	while (sc->sc_inputs == 0) {
 
 		usbd_transfer_poll(sc->sc_xfer, UKBD_N_TRANSFER);
 
-		DELAY(1000);	/* delay 1 ms */
+		microtime(&tv);
 
-		sc->sc_time_ms++;
+		temp = tv.tv_usec / 25000;
 
 		/* support repetition of keys: */
 
+		if (sc->sc_microtime != temp) {
+
+			/* wait for next delta */
+
+			sc->sc_microtime = temp;
+
+			/* 25 milliseconds have passed */
+
+			sc->sc_time_ms += 25;
+		}
+
 		ukbd_interrupt(sc);
 
 		if (!wait)