From owner-svn-src-stable@FreeBSD.ORG Wed Nov 28 18:15:39 2012 Return-Path: Delivered-To: svn-src-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 261631AF; Wed, 28 Nov 2012 18:15:39 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id E5E048FC15; Wed, 28 Nov 2012 18:15:38 +0000 (UTC) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.5/8.14.5) with ESMTP id qASIFcm4005569; Wed, 28 Nov 2012 18:15:38 GMT (envelope-from hselasky@svn.freebsd.org) Received: (from hselasky@localhost) by svn.freebsd.org (8.14.5/8.14.5/Submit) id qASIFcMJ005567; Wed, 28 Nov 2012 18:15:38 GMT (envelope-from hselasky@svn.freebsd.org) Message-Id: <201211281815.qASIFcMJ005567@svn.freebsd.org> From: Hans Petter Selasky Date: Wed, 28 Nov 2012 18:15:38 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r243658 - stable/8/sys/dev/usb/serial X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Nov 2012 18:15:39 -0000 Author: hselasky Date: Wed Nov 28 18:15:38 2012 New Revision: 243658 URL: http://svnweb.freebsd.org/changeset/base/243658 Log: MFC r243380: Fix uplcom clear stall logic for PL2303HX. Submitted by: Mark Johnston Modified: stable/8/sys/dev/usb/serial/uplcom.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/dev/ (props changed) stable/8/sys/dev/usb/ (props changed) Modified: stable/8/sys/dev/usb/serial/uplcom.c ============================================================================== --- stable/8/sys/dev/usb/serial/uplcom.c Wed Nov 28 18:13:35 2012 (r243657) +++ stable/8/sys/dev/usb/serial/uplcom.c Wed Nov 28 18:15:38 2012 (r243658) @@ -428,11 +428,21 @@ uplcom_attach(device_t dev) usbd_errstr(error)); goto detach; } - /* clear stall at first run */ - mtx_lock(&sc->sc_mtx); - usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]); - usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]); - mtx_unlock(&sc->sc_mtx); + + if (sc->sc_chiptype != TYPE_PL2303HX) { + /* HX variants seem to lock up after a clear stall request. */ + mtx_lock(&sc->sc_mtx); + usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_WR]); + usbd_xfer_set_stall(sc->sc_xfer[UPLCOM_BULK_DT_RD]); + mtx_unlock(&sc->sc_mtx); + } else { + if (uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, + UPLCOM_SET_REQUEST, 8, 0, 0) || + uplcom_pl2303_do(sc->sc_udev, UT_WRITE_VENDOR_DEVICE, + UPLCOM_SET_REQUEST, 9, 0, 0)) { + goto detach; + } + } error = ucom_attach(&sc->sc_super_ucom, &sc->sc_ucom, 1, sc, &uplcom_callback, &sc->sc_mtx); @@ -531,9 +541,6 @@ uplcom_pl2303_init(struct usb_device *ud if (err) return (EIO); - if (uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 8, 0, 0) - || uplcom_pl2303_do(udev, UT_WRITE_VENDOR_DEVICE, UPLCOM_SET_REQUEST, 9, 0, 0)) - return (EIO); return (0); }