97797dc959
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.
494 lines
14 KiB
C
494 lines
14 KiB
C
/* $NetBSD: uhub.c,v 1.5 1998/08/02 22:30:52 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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#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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#elif defined(__FreeBSD__)
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#include <sys/module.h>
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#include <sys/bus.h>
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#endif
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#include <sys/proc.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdivar.h>
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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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extern int usbdebug;
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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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struct uhub_softc {
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bdevice sc_dev; /* base device */
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usbd_device_handle sc_hub; /* USB device */
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usbd_pipe_handle sc_ipipe; /* interrupt pipe */
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u_int8_t sc_status[1]; /* XXX more ports */
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u_char sc_running;
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};
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#if defined(__NetBSD__)
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int uhub_match __P((struct device *, struct cfdata *, void *));
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void uhub_attach __P((struct device *, struct device *, void *));
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void uhub_detach __P((struct device *));
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#elif defined(__FreeBSD__)
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static device_probe_t uhub_match;
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static device_attach_t uhub_attach;
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static device_detach_t uhub_detach;
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#endif
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usbd_status uhub_init_port __P((int, struct usbd_port *, usbd_device_handle));
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void uhub_disconnect __P((struct usbd_port *up, int portno));
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usbd_status uhub_explore __P((usbd_device_handle hub));
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void uhub_intr __P((usbd_request_handle, usbd_private_handle, usbd_status));
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/*void uhub_disco __P((void *));*/
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#if defined(__NetBSD__)
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extern struct cfdriver uhub_cd;
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struct cfattach uhub_ca = {
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sizeof(struct uhub_softc), uhub_match, uhub_attach
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};
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struct cfattach uhub_uhub_ca = {
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sizeof(struct uhub_softc), uhub_match, uhub_attach
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};
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#elif defined(__FreeBSD__)
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static devclass_t uhub_devclass;
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static device_method_t uhub_methods[] = {
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DEVMETHOD(device_probe, uhub_match),
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DEVMETHOD(device_attach, uhub_attach),
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DEVMETHOD(device_detach, uhub_detach),
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{0,0}
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};
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static driver_t uhub_driver = {
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"usb", /* this is silly, but necessary. The uhub
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* implements a usb bus on top of a usb bus,
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* but the problem is that name of the driver
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* is used a the name of the device class it
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* implements.
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*/
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uhub_methods,
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DRIVER_TYPE_MISC,
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sizeof(struct uhub_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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uhub_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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{
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struct usb_attach_arg *uaa = aux;
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#elif defined(__FreeBSD__)
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static int
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uhub_match(device_t device)
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{
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struct usb_attach_arg *uaa = device_get_ivars(device);
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#endif
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usb_device_descriptor_t *dd = usbd_get_device_descriptor(uaa->device);
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DPRINTFN(5,("uhub_match, dd=%p\n", dd));
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/*
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* The subclass for hubs seems to be 0 for some and 1 for others,
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* so we just ignore the subclass.
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*/
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if (uaa->iface == 0 && dd->bDeviceClass == UCLASS_HUB)
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return (UMATCH_DEVCLASS_DEVSUBCLASS);
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return (UMATCH_NONE);
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}
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#if defined(__NetBSD__)
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void
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uhub_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 uhub_softc *sc = (struct uhub_softc *)self;
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struct usb_attach_arg *uaa = aux;
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#elif defined(__FreeBSD__)
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static int
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uhub_attach(device_t self)
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{
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struct uhub_softc *sc = device_get_softc(self);
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struct usb_attach_arg *uaa = device_get_ivars(self);
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#endif
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usbd_device_handle dev = uaa->device;
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char devinfo[1024];
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usbd_status r;
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struct usbd_hub *hub;
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usb_device_request_t req;
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usb_hub_descriptor_t hubdesc;
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int port, nports;
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usbd_interface_handle iface;
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usb_endpoint_descriptor_t *ed;
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DPRINTFN(10,("uhub_attach\n"));
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sc->sc_hub = dev;
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usbd_devinfo(dev, 1, devinfo);
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#if defined(__FreeBSD__)
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usb_device_set_desc(self, devinfo);
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printf("%s%d", device_get_name(self), device_get_unit(self));
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#endif
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printf(": %s\n", devinfo);
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sc->sc_dev = self;
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r = usbd_set_config_no(dev, 0, 1);
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if (r != USBD_NORMAL_COMPLETION) {
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DEVICE_ERROR(sc->sc_dev, ("configuration failed, error=%d\n", r));
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ATTACH_ERROR_RETURN;
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}
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if (dev->depth > USB_HUB_MAX_DEPTH) {
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DEVICE_ERROR(sc->sc_dev, ("hub depth (%d) exceeded, hub ignored\n",
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USB_HUB_MAX_DEPTH));
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ATTACH_ERROR_RETURN;
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}
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/* Get hub descriptor. */
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req.bmRequestType = UT_READ_CLASS_DEVICE;
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req.bRequest = UR_GET_DESCRIPTOR;
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USETW(req.wValue, 0);
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USETW(req.wIndex, 0);
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USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE);
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DPRINTFN(1,("usb_init_hub: getting hub descriptor\n"));
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/* XXX not correct for hubs with >7 ports */
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r = usbd_do_request(dev, &req, &hubdesc);
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if (r != USBD_NORMAL_COMPLETION) {
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DEVICE_ERROR(sc->sc_dev, ("getting hub descriptor failed, error=%d\n", r));
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ATTACH_ERROR_RETURN;
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}
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/* XXX block should be moved down to avoid memory leaking (or an overdose of free()'s) */
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nports = hubdesc.bNbrPorts;
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hub = malloc(sizeof(*hub) + (nports-1) * sizeof(struct usbd_port),
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M_USB, M_NOWAIT);
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if (hub == 0)
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ATTACH_ERROR_RETURN;
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dev->hub = hub;
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dev->hub->hubdata = sc;
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hub->explore = uhub_explore;
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hub->hubdesc = hubdesc;
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hub->nports = nports;
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DPRINTFN(1,("usbhub_init_hub: selfpowered=%d, parent=%p, parent->selfpowered=%d\n",
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dev->self_powered, dev->powersrc->parent,
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dev->powersrc->parent ?
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dev->powersrc->parent->self_powered : 0));
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if (!dev->self_powered && dev->powersrc->parent &&
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!dev->powersrc->parent->self_powered) {
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DEVICE_ERROR(sc->sc_dev, ("bus powered hub connected to bus powered hub, ignored\n"));
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ATTACH_ERROR_RETURN;
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}
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/* Set up interrupt pipe. */
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r = usbd_device2interface_handle(dev, 0, &iface);
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if (r != USBD_NORMAL_COMPLETION) {
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DEVICE_ERROR(sc->sc_dev, ("no interface handle\n"));
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ATTACH_ERROR_RETURN;
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}
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ed = usbd_interface2endpoint_descriptor(iface, 0);
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if (ed == 0) {
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DEVICE_ERROR(sc->sc_dev, ("no endpoint descriptor\n"));
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ATTACH_ERROR_RETURN;
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}
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if ((ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
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DEVICE_ERROR(sc->sc_dev, ("bad interrupt endpoint\n"));
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ATTACH_ERROR_RETURN;
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}
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r = usbd_open_pipe_intr(iface, ed->bEndpointAddress,USBD_SHORT_XFER_OK,
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&sc->sc_ipipe, sc, sc->sc_status,
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sizeof(sc->sc_status),
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uhub_intr);
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if (r != USBD_NORMAL_COMPLETION) {
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DEVICE_ERROR(sc->sc_dev, ("cannot open interrupt pipe\n"));
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ATTACH_ERROR_RETURN;
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}
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for (port = 1; port <= nports; port++) {
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r = uhub_init_port(port, &hub->ports[port-1], dev);
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if (r != USBD_NORMAL_COMPLETION)
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DEVICE_ERROR(sc->sc_dev, ("init of port %d failed\n", port));
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}
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sc->sc_running = 1;
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ATTACH_SUCCESS_RETURN;
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}
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#if defined(__NetBSD__)
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static int
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uhub_detach(self)
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struct device *self;
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{
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struct uhub_softc *sc = (struct uhub_softc *)self;
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#elif defined(__FreeBSD__)
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static int
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uhub_detach(device_t self)
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{
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struct uhub_softc *sc = device_get_softc(self);
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#endif
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int nports = sc->sc_hub->hub->hubdesc.bNbrPorts;
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int port;
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for (port = 1; port <= nports; port++) {
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if (sc->sc_hub->hub->ports[port-1].device)
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uhub_disconnect(&sc->sc_hub->hub->ports[port-1], port);
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}
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free(sc->sc_hub->hub, M_USB);
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return 0;
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}
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usbd_status
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uhub_init_port(port, uport, dev)
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int port;
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struct usbd_port *uport;
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usbd_device_handle dev;
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{
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usbd_status r;
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u_int16_t pstatus;
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uport->device = 0;
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uport->parent = dev;
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r = usbd_get_port_status(dev, port, &uport->status);
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if (r != USBD_NORMAL_COMPLETION)
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return r;
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pstatus = UGETW(uport->status.wPortStatus);
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DPRINTF(("usbd_init_port: adding hub port=%d status=0x%04x change=0x%04x\n",
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port, pstatus, UGETW(uport->status.wPortChange)));
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if ((pstatus & UPS_PORT_POWER) == 0) {
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/* Port lacks power, turn it on */
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r = usbd_set_port_feature(dev, port, UHF_PORT_POWER);
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if (r != USBD_NORMAL_COMPLETION)
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return (r);
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r = usbd_get_port_status(dev, port, &uport->status);
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if (r != USBD_NORMAL_COMPLETION)
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return (r);
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DPRINTF(("usb_init_port: turn on port %d power status=0x%04x change=0x%04x\n",
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port, UGETW(uport->status.wPortStatus),
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UGETW(uport->status.wPortChange)));
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/* Wait for stable power. */
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usbd_delay_ms(dev->bus, dev->hub->hubdesc.bPwrOn2PwrGood *
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UHD_PWRON_FACTOR);
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}
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if (dev->self_powered)
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/* Self powered hub, give ports maximum current. */
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uport->power = USB_MAX_POWER;
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else
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uport->power = USB_MIN_POWER;
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return (USBD_NORMAL_COMPLETION);
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}
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usbd_status
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uhub_explore(dev)
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usbd_device_handle dev;
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{
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usb_hub_descriptor_t *hd = &dev->hub->hubdesc;
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struct uhub_softc *sc = dev->hub->hubdata;
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struct usbd_port *up;
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usbd_status r;
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int port;
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int change, status;
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DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev, dev->address));
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if (!sc->sc_running)
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return (USBD_NOT_STARTED);
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/* Ignore hubs that are too deep. */
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if (dev->depth > USB_HUB_MAX_DEPTH)
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return (USBD_TOO_DEEP);
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for(port = 1; port <= hd->bNbrPorts; port++) {
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up = &dev->hub->ports[port-1];
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r = usbd_get_port_status(dev, port, &up->status);
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if (r != USBD_NORMAL_COMPLETION) {
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DPRINTF(("uhub_explore: get port status failed, error=%d\n",
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r));
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continue;
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}
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status = UGETW(up->status.wPortStatus);
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change = UGETW(up->status.wPortChange);
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DPRINTFN(5, ("uhub_explore: port %d status 0x%04x 0x%04x\n",
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port, status, change));
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if (!(change & UPS_CURRENT_CONNECT_STATUS)) {
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/* No status change, just do recursive explore. */
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if (up->device && up->device->hub)
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up->device->hub->explore(up->device);
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continue;
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}
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DPRINTF(("uhub_explore: status change hub=%d port=%d\n",
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dev->address, port));
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usbd_clear_port_feature(dev, port, UHF_C_PORT_CONNECTION);
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usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE);
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/*
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* If there is already a device on the port the change status
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* must mean that is has disconnected. Looking at the
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* current connect status is not enough to figure this out
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* since a new unit may have been connected before we handle
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* the disconnect.
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*/
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if (up->device) {
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/* Disconnected */
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DPRINTF(("uhub_explore: device %d disappeared on port %d\n",
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up->device->address, port));
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uhub_disconnect(up, port);
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usbd_clear_port_feature(dev, port,
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UHF_C_PORT_CONNECTION);
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}
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if (!(status & UPS_CURRENT_CONNECT_STATUS))
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continue;
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/* Connected */
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/* Wait for maximum device power up time. */
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usbd_delay_ms(dev->bus, USB_PORT_POWERUP_DELAY);
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/* Reset port, which implies enabling it. */
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if (usbd_reset_port(dev, port, &up->status) !=
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USBD_NORMAL_COMPLETION)
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continue;
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/* Wait for power to settle in device. */
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usbd_delay_ms(dev->bus, USB_POWER_SETTLE);
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/* Get device info and set its address. */
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r = usbd_new_device(&sc->sc_dev, dev->bus,
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dev->depth + 1, status & UPS_LOW_SPEED,
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port, up);
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/* XXX retry a few times? */
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if (r != USBD_NORMAL_COMPLETION) {
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DPRINTFN(-1,("uhub_explore: usb_new_device failed, error=%d\n", r));
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/* Avoid addressing problems by disabling. */
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/* usbd_reset_port(dev, port, &up->status); */
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/* XXX
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* What should we do. The device may or may not be at its
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* assigned address. In any case we'd like to ignore it.
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* Maybe the port should be disabled until the device is
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* disconnected.
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*/
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if (r == USBD_SET_ADDR_FAILED || 1) {/* XXX */
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/* The unit refused to accept a new
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* address, and since we cannot leave
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* at 0 we have to disable the port
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* instead. */
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/*
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DEVICE_ERROR(*parent, ("device problem, disable port %d\n",
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port));
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*/
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usbd_clear_port_feature(dev, port,
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UHF_PORT_ENABLE);
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}
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} else {
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if (up->device->hub)
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up->device->hub->explore(up->device);
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}
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}
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return (USBD_NORMAL_COMPLETION);
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}
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void
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uhub_disconnect(up, portno)
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struct usbd_port *up;
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int portno;
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{
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usbd_device_handle dev = up->device;
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usbd_pipe_handle p, n;
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usb_hub_descriptor_t *hd;
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struct usbd_port *spi;
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int i, port;
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DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n",
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up, dev, portno));
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DEVICE_MSG(dev->bdev, ("device addr %d%s on hub addr %d, port %d disconnected\n",
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dev->address, dev->hub ? " (hub)" : "", up->parent->address, portno));
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for (i = 0; i < dev->cdesc->bNumInterface; i++) {
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for (p = LIST_FIRST(&dev->ifaces[i].pipes); p; p = n) {
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n = LIST_NEXT(p, next);
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if (p->disco)
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p->disco(p->discoarg);
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usbd_abort_pipe(p);
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usbd_close_pipe(p);
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}
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}
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/* clean up the kindergarten, get rid of the kids */
|
|
usbd_remove_device(dev, up);
|
|
}
|
|
|
|
void
|
|
uhub_intr(reqh, addr, status)
|
|
usbd_request_handle reqh;
|
|
usbd_private_handle addr;
|
|
usbd_status status;
|
|
{
|
|
struct uhub_softc *sc = addr;
|
|
|
|
DPRINTFN(5,("uhub_intr: sc=%p\n", sc));
|
|
#if 0
|
|
if (status != USBD_NORMAL_COMPLETION)
|
|
usbd_clear_endpoint_stall(sc->sc_ipipe);
|
|
else
|
|
#endif
|
|
usb_needs_explore(sc->sc_hub->bus);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
DRIVER_MODULE(uhub, usb, uhub_driver, uhub_devclass, usb_driver_load, 0);
|
|
#endif
|