From owner-svn-src-all@FreeBSD.ORG Tue May 5 15:41:30 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 78DCF1065670; Tue, 5 May 2009 15:41:30 +0000 (UTC) (envelope-from thompsa@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 662578FC14; Tue, 5 May 2009 15:41:30 +0000 (UTC) (envelope-from thompsa@FreeBSD.org) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n45FfUpL085701; Tue, 5 May 2009 15:41:30 GMT (envelope-from thompsa@svn.freebsd.org) Received: (from thompsa@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id n45FfUYL085700; Tue, 5 May 2009 15:41:30 GMT (envelope-from thompsa@svn.freebsd.org) Message-Id: <200905051541.n45FfUYL085700@svn.freebsd.org> From: Andrew Thompson Date: Tue, 5 May 2009 15:41:30 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r191826 - head/sys/dev/usb/controller X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 May 2009 15:41:31 -0000 Author: thompsa Date: Tue May 5 15:41:30 2009 New Revision: 191826 URL: http://svn.freebsd.org/changeset/base/191826 Log: Make sure the frame list base address is re-programmed after stopping the USB schedule, in case the hardware clears the frame list base address. Submitted by: Hans Petter Selasky Reported by: Chao Shin Modified: head/sys/dev/usb/controller/uhci.c Modified: head/sys/dev/usb/controller/uhci.c ============================================================================== --- head/sys/dev/usb/controller/uhci.c Tue May 5 15:39:29 2009 (r191825) +++ head/sys/dev/usb/controller/uhci.c Tue May 5 15:41:30 2009 (r191826) @@ -132,6 +132,7 @@ extern struct usb2_pipe_methods uhci_dev extern struct usb2_pipe_methods uhci_device_intr_methods; extern struct usb2_pipe_methods uhci_device_isoc_methods; +static uint8_t uhci_restart(uhci_softc_t *sc); static void uhci_do_poll(struct usb2_bus *); static void uhci_device_done(struct usb2_xfer *, usb2_error_t); static void uhci_transfer_intr_enqueue(struct usb2_xfer *); @@ -246,10 +247,51 @@ uhci_mem_layout_fixup(struct uhci_mem_la ml->buf_offset += td->len; } +/* + * Return values: + * 0: Success + * Else: Failure + */ +static uint8_t +uhci_restart(uhci_softc_t *sc) +{ + struct usb2_page_search buf_res; + + USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); + + if (UREAD2(sc, UHCI_CMD) & UHCI_CMD_RS) { + DPRINTFN(2, "Already started\n"); + return (0); + } + + DPRINTFN(2, "Restarting\n"); + + usb2_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); + + /* Reload fresh base address */ + UWRITE4(sc, UHCI_FLBASEADDR, buf_res.physaddr); + + /* + * Assume 64 byte packets at frame end and start HC controller: + */ + UHCICMD(sc, (UHCI_CMD_MAXP | UHCI_CMD_RS)); + + /* wait 10 milliseconds */ + + usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); + + /* check that controller has started */ + + if (UREAD2(sc, UHCI_STS) & UHCI_STS_HCH) { + DPRINTFN(2, "Failed\n"); + return (1); + } + return (0); +} + void uhci_reset(uhci_softc_t *sc) { - struct usb2_page_search buf_res; uint16_t n; USB_BUS_LOCK_ASSERT(&sc->sc_bus, MA_OWNED); @@ -309,8 +351,6 @@ done_1: done_2: /* reload the configuration */ - usb2_get_page(&sc->sc_hw.pframes_pc, 0, &buf_res); - UWRITE4(sc, UHCI_FLBASEADDR, buf_res.physaddr); UWRITE2(sc, UHCI_FRNUM, sc->sc_saved_frnum); UWRITE1(sc, UHCI_SOF, sc->sc_saved_sof); @@ -337,30 +377,11 @@ uhci_start(uhci_softc_t *sc) UHCI_INTR_IOCE | UHCI_INTR_SPIE)); - /* - * assume 64 byte packets at frame end and start HC controller - */ - - UHCICMD(sc, (UHCI_CMD_MAXP | UHCI_CMD_RS)); - - uint8_t n = 10; - - while (n--) { - /* wait one millisecond */ - - usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000); - - /* check that controller has started */ - - if (!(UREAD2(sc, UHCI_STS) & UHCI_STS_HCH)) { - goto done; - } + if (uhci_restart(sc)) { + device_printf(sc->sc_bus.bdev, + "cannot start HC controller\n"); } - device_printf(sc->sc_bus.bdev, - "cannot start HC controller\n"); - -done: /* start root interrupt */ uhci_root_intr(sc); } @@ -2389,15 +2410,7 @@ uhci_portreset(uhci_softc_t *sc, uint16_ * Before we do anything, turn on SOF messages on the USB * BUS. Some USB devices do not cope without them! */ - if (!(UREAD2(sc, UHCI_CMD) & UHCI_CMD_RS)) { - - DPRINTF("Activating SOFs!\n"); - - UHCICMD(sc, (UHCI_CMD_MAXP | UHCI_CMD_RS)); - - /* wait a little bit */ - usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 100); - } + uhci_restart(sc); x = URWMASK(UREAD2(sc, port)); UWRITE2(sc, port, x | UHCI_PORTSC_PR); @@ -3194,11 +3207,11 @@ uhci_set_hw_power(struct usb2_bus *bus) USB_HW_POWER_INTERRUPT | USB_HW_POWER_ISOC)) { DPRINTF("Some USB transfer is " - "active on %u.\n", + "active on unit %u.\n", device_get_unit(sc->sc_bus.bdev)); - UHCICMD(sc, (UHCI_CMD_MAXP | UHCI_CMD_RS)); + uhci_restart(sc); } else { - DPRINTF("Power save on %u.\n", + DPRINTF("Power save on unit %u.\n", device_get_unit(sc->sc_bus.bdev)); UHCICMD(sc, UHCI_CMD_MAXP); }