ff213ddb78
1) Removed 'emulation' of bitmaps in printfs, FreeBSD seems to have caught up on that one 2) Fixed a few bugs in the timeout/timo timeout variables 3) First attempt at fixing a bug mentioned by Kazu: uhci_run is not able start/stop his USB host on his motherboard.
604 lines
13 KiB
C
604 lines
13 KiB
C
/* $NetBSD: usb.c,v 1.3 1998/08/01 18:16:20 augustss Exp $ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Author: Lennart Augustsson <augustss@carlstedt.se>
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* Carlstedt Research & Technology
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
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* More USB specs at http://www.usb.org/developers/index.shtml
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*/
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#include <dev/usb/usb_port.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#if defined(__NetBSD__)
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#include <sys/device.h>
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#else
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/ioccom.h>
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#include <sys/uio.h>
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#include <sys/conf.h>
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#endif
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#include <sys/poll.h>
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#include <sys/proc.h>
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#include <sys/select.h>
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#include <dev/usb/usb.h>
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#if defined(__FreeBSD__)
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MALLOC_DEFINE(M_USB, "USB", "USB");
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MALLOC_DEFINE(M_USBDEV, "USBdev", "USB device");
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#endif
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_quirks.h>
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#if defined(__FreeBSD__)
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#include "usb_if.h"
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#endif
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#ifdef USB_DEBUG
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#define DPRINTF(x) if (usbdebug) printf x
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#define DPRINTFN(n,x) if (usbdebug>(n)) printf x
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int usbdebug = 2;
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int uhcidebug = 2;
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int ohcidebug = 2;
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#else
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#define DPRINTF(x)
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#define DPRINTFN(n,x)
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#endif
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#define USBUNIT(dev) (minor(dev))
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struct usb_softc {
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bdevice sc_dev; /* base device */
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usbd_bus_handle sc_bus; /* USB controller */
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struct usbd_port sc_port; /* dummy port for root hub */
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char sc_running;
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char sc_exploring;
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struct selinfo sc_consel; /* waiting for connect change */
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};
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#if defined(__NetBSD__)
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int usb_match __P((struct device *, struct cfdata *, void *));
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void usb_attach __P((struct device *, struct device *, void *));
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int usbopen __P((dev_t, int, int, struct proc *));
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int usbclose __P((dev_t, int, int, struct proc *));
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int usbioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
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int usbpoll __P((dev_t, int, struct proc *));
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#else
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static device_probe_t usb_match;
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static device_attach_t usb_attach;
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static bus_print_child_t usb_print_child;
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d_open_t usbopen;
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d_close_t usbclose;
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d_ioctl_t usbioctl;
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int usbpoll __P((dev_t, int, struct proc *));
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struct cdevsw usb_cdevsw = {
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usbopen, usbclose, noread, nowrite,
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usbioctl, nullstop, nullreset, nodevtotty,
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seltrue, nommap, nostrat,
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"usb", NULL, -1
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};
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#endif
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usbd_status usb_discover __P((struct usb_softc *));
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#if defined(__NetBSD__)
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extern struct cfdriver usb_cd;
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struct cfattach usb_ca = {
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sizeof(struct usb_softc), usb_match, usb_attach
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};
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#else
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static devclass_t usb_devclass = NULL;
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static device_method_t usb_methods[] = {
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DEVMETHOD(device_probe, usb_match),
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DEVMETHOD(device_attach, usb_attach),
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DEVMETHOD(bus_print_child, usb_print_child),
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{0, 0}
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};
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static driver_t usb_driver = {
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"usb",
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usb_methods,
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DRIVER_TYPE_MISC,
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sizeof(struct usb_softc),
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};
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#endif
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#if defined(__NetBSD__)
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int
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usb_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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#else
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static int
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usb_match(device_t device)
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#endif
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{
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DPRINTF(("usbd_match\n"));
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#if defined(__NetBSD__)
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return (1);
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#else
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return (0);
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#endif
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}
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#if defined(__NetBSD__)
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void
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usb_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct usb_softc *sc = (struct usb_softc *)self;
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#else
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static int
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usb_attach(device_t device)
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{
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struct usb_softc *sc = device_get_softc(device);
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void *aux = device_get_ivars(device);
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#endif
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usbd_device_handle dev;
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usbd_status r;
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#if defined(__NetBSD__)
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printf("\n");
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#endif
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DPRINTF(("usbd_attach\n"));
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usbd_init();
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sc->sc_bus = aux;
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sc->sc_bus->usbctl = sc;
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sc->sc_running = 1;
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sc->sc_bus->use_polling = 1;
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sc->sc_port.power = USB_MAX_POWER;
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#if defined(__FreeBSD__)
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sc->sc_dev = device;
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#endif
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r = usbd_new_device(&sc->sc_dev, sc->sc_bus, 0, 0, 0, &sc->sc_port);
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if (r == USBD_NORMAL_COMPLETION) {
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dev = sc->sc_port.device;
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if (!dev->hub) {
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sc->sc_running = 0;
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DEVICE_ERROR(sc->sc_dev, ("root device is not a hub\n"));
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ATTACH_ERROR_RETURN;
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}
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sc->sc_bus->root_hub = dev;
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dev->hub->explore(sc->sc_bus->root_hub);
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} else {
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DEVICE_ERROR(sc->sc_dev, ("root hub problem, error=%d\n", r));
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sc->sc_running = 0;
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}
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sc->sc_bus->use_polling = 0;
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ATTACH_SUCCESS_RETURN;
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}
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#if defined(__NetBSD__)
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int
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usbctlprint(aux, pnp)
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void *aux;
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const char *pnp;
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{
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/* only "usb"es can attach to host controllers */
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if (pnp)
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printf("usb at %s", pnp);
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return (UNCONF);
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}
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#else
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static void
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usb_print_child(device_t parent, device_t child)
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{
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struct usb_softc *sc = device_get_softc(child);
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printf(" at %s%d", device_get_name(parent), device_get_unit(parent));
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/* How do we get to the usbd_device_handle???
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usbd_device_handle dev = invalidadosch;
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printf(" addr %d", dev->addr);
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if (bootverbose) {
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if (dev->lowspeed)
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printf(", lowspeed");
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if (dev->self_powered)
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printf(", self powered");
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else
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printf(", %dmA", dev->power);
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printf(", config %d", dev->config);
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}
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*/
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}
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/* Reconfigure all the USB busses in the system
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*/
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int
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usb_driver_load(module_t mod, int what, void *arg)
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{
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/* subroutine is there but inactive at the moment
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* the reconfiguration process has not been thought through yet.
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*/
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devclass_t ugen_devclass = devclass_find("ugen");
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device_t *devlist;
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int devcount;
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int error;
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switch (what) {
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case MOD_LOAD:
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case MOD_UNLOAD:
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if (!usb_devclass)
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return 0; /* just ignore call */
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if (ugen_devclass) {
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/* detach devices from generic driver if possible
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*/
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error = devclass_get_devices(ugen_devclass, &devlist,
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&devcount);
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if (!error)
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for (devcount--; devcount >= 0; devcount--)
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(void) DEVICE_DETACH(devlist[devcount]);
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}
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error = devclass_get_devices(usb_devclass, &devlist, &devcount);
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if (error)
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return 0; /* XXX maybe transient, or error? */
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for (devcount--; devcount >= 0; devcount--)
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USB_RECONFIGURE(devlist[devcount]);
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free(devlist, M_TEMP);
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return 0;
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}
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return 0; /* nothing to do by us */
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}
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/* Set the description of the device including a malloc and copy
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*/
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void
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usb_device_set_desc(device_t device, char *devinfo)
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{
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size_t l;
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char *desc;
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if ( devinfo ) {
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l = strlen(devinfo);
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desc = malloc(l+1, M_USB, M_NOWAIT);
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if (desc)
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memcpy(desc, devinfo, l+1);
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} else
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desc = NULL;
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device_set_desc(device, desc);
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}
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#endif
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int
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usbopen(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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#if defined(__NetBSD__)
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int unit = USBUNIT(dev);
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struct usb_softc *sc;
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if (unit >= usb_cd.cd_ndevs)
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return (ENXIO);
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sc = usb_cd.cd_devs[unit];
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#else
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device_t device = devclass_get_device(usb_devclass, USBUNIT(dev));
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struct usb_softc *sc = device_get_softc(device);
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#endif
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if (sc == 0 || !sc->sc_running)
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return (ENXIO);
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return (0);
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}
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int
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usbclose(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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return (0);
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}
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int
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usbioctl(dev, cmd, data, flag, p)
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dev_t dev;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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#if defined(__NetBSD__)
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int unit = USBUNIT(dev);
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struct usb_softc *sc;
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if (unit >= usb_cd.cd_ndevs)
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return (ENXIO);
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sc = usb_cd.cd_devs[unit];
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#else
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device_t device = devclass_get_device(usb_devclass, USBUNIT(dev));
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struct usb_softc *sc = device_get_softc(device);
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#endif
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if (sc == 0 || !sc->sc_running)
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return (ENXIO);
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switch (cmd) {
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#ifdef USB_DEBUG
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case USB_SETDEBUG:
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usbdebug = uhcidebug = ohcidebug = *(int *)data;
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break;
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#endif
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case USB_DISCOVER:
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usb_discover(sc);
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break;
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case USB_REQUEST:
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{
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struct usb_ctl_request *ur = (void *)data;
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int len = UGETW(ur->request.wLength);
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struct iovec iov;
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struct uio uio;
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void *ptr = 0;
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int addr = ur->addr;
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usbd_status r;
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int error = 0;
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if (len < 0 || len > 32768)
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return EINVAL;
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if (addr < 0 || addr >= USB_MAX_DEVICES ||
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sc->sc_bus->devices[addr] == 0)
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return EINVAL;
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if (len != 0) {
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iov.iov_base = (caddr_t)ur->data;
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iov.iov_len = len;
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uio.uio_iov = &iov;
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uio.uio_iovcnt = 1;
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uio.uio_resid = len;
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uio.uio_offset = 0;
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uio.uio_segflg = UIO_USERSPACE;
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uio.uio_rw =
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ur->request.bmRequestType & UT_READ ?
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UIO_READ : UIO_WRITE;
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uio.uio_procp = p;
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ptr = malloc(len, M_TEMP, M_WAITOK);
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if (uio.uio_rw == UIO_WRITE) {
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error = uiomove(ptr, len, &uio);
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if (error)
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goto ret;
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}
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}
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r = usbd_do_request(sc->sc_bus->devices[addr],
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&ur->request, ptr);
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if (r) {
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error = EIO;
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goto ret;
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}
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if (len != 0) {
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if (uio.uio_rw == UIO_READ) {
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error = uiomove(ptr, len, &uio);
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if (error)
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goto ret;
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}
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}
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ret:
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if (ptr)
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free(ptr, M_TEMP);
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return (error);
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break;
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}
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case USB_DEVICEINFO:
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{
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struct usb_device_info *di = (void *)data;
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int addr = di->addr;
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usbd_device_handle dev;
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struct usbd_port *p;
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int i, r, s;
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if (addr < 1 || addr >= USB_MAX_DEVICES)
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return (EINVAL);
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dev = sc->sc_bus->devices[addr];
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if (dev == 0)
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return (ENXIO);
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di->config = dev->config;
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usbd_devinfo_vp(dev, di->product, di->vendor);
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usbd_printBCD(di->revision, UGETW(dev->ddesc.bcdDevice));
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di->class = dev->ddesc.bDeviceClass;
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di->power = dev->self_powered ? 0 : dev->power;
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di->lowspeed = dev->lowspeed;
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if (dev->hub) {
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for (i = 0;
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i < sizeof(di->ports) / sizeof(di->ports[0]) &&
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i < dev->hub->hubdesc.bNbrPorts;
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i++) {
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p = &dev->hub->ports[i];
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if (p->device)
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r = p->device->address;
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else {
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s = UGETW(p->status.wPortStatus);
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if (s & UPS_PORT_ENABLED)
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r = USB_PORT_ENABLED;
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else if (s & UPS_SUSPEND)
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r = USB_PORT_SUSPENDED;
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else if (s & UPS_PORT_POWER)
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r = USB_PORT_POWERED;
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else
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r = USB_PORT_DISABLED;
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}
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di->ports[i] = r;
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}
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di->nports = dev->hub->hubdesc.bNbrPorts;
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} else
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di->nports = 0;
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break;
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}
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case USB_DEVICESTATS:
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*(struct usb_device_stats *)data = sc->sc_bus->stats;
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break;
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default:
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return (ENXIO);
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}
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return (0);
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}
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int
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usbpoll(dev, events, p)
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dev_t dev;
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int events;
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struct proc *p;
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{
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int revents, s;
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#if defined(__NetBSD__)
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int unit = USBUNIT(dev);
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struct usb_softc *sc;
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if (unit >= usb_cd.cd_ndevs)
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return (ENXIO);
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sc = usb_cd.cd_devs[unit];
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#else
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device_t device = devclass_get_device(usb_devclass, USBUNIT(dev));
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struct usb_softc *sc = device_get_softc(device);
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#endif
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DPRINTFN(2, ("usbpoll: sc=%p events=0x%x\n", sc, events));
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s = splusb();
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revents = 0;
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if (events & (POLLOUT | POLLWRNORM))
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if (sc->sc_bus->needs_explore)
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revents |= events & (POLLOUT | POLLWRNORM);
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|
DPRINTFN(2, ("usbpoll: revents=0x%x\n", revents));
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|
if (revents == 0) {
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if (events & (POLLOUT | POLLWRNORM)) {
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|
DPRINTFN(2, ("usbpoll: selrecord\n"));
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|
selrecord(p, &sc->sc_consel);
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}
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}
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|
splx(s);
|
|
return (revents);
|
|
}
|
|
|
|
#if defined(__NetBSD__)
|
|
/* See remarks on this in usbdi.c
|
|
*/
|
|
int
|
|
usb_bus_count()
|
|
{
|
|
int i, n;
|
|
|
|
for (i = n = 0; i < usb_cd.cd_ndevs; i++)
|
|
if (usb_cd.cd_devs[i])
|
|
n++;
|
|
return (n);
|
|
}
|
|
|
|
usbd_status
|
|
usb_get_bus_handle(n, h)
|
|
int n;
|
|
usbd_bus_handle *h;
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < usb_cd.cd_ndevs; i++)
|
|
if (usb_cd.cd_devs[i] && n-- == 0) {
|
|
*h = usb_cd.cd_devs[i];
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
return (USBD_INVAL);
|
|
}
|
|
#endif
|
|
|
|
usbd_status
|
|
usb_discover(sc)
|
|
struct usb_softc *sc;
|
|
{
|
|
int s;
|
|
|
|
/* Explore device tree from the root */
|
|
/* We need mutual exclusion while traversing the device tree. */
|
|
s = splusb();
|
|
while (sc->sc_exploring)
|
|
tsleep(&sc->sc_exploring, PRIBIO, "usbdis", 0);
|
|
sc->sc_exploring = 1;
|
|
sc->sc_bus->needs_explore = 0;
|
|
splx(s);
|
|
|
|
sc->sc_bus->root_hub->hub->explore(sc->sc_bus->root_hub);
|
|
|
|
s = splusb();
|
|
sc->sc_exploring = 0;
|
|
wakeup(&sc->sc_exploring);
|
|
splx(s);
|
|
/* XXX should we start over if sc_needsexplore is set again? */
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
usb_needs_explore(bus)
|
|
usbd_bus_handle bus;
|
|
{
|
|
bus->needs_explore = 1;
|
|
selwakeup(&bus->usbctl->sc_consel);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
DRIVER_MODULE(usb, root, usb_driver, usb_devclass, 0, 0);
|
|
#endif
|