Date: Mon, 3 Aug 2009 07:09:42 GMT From: Hans Petter Selasky <hselasky@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 166957 for review Message-ID: <200908030709.n7379gRE070527@repoman.freebsd.org>
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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)
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