diff options
Diffstat (limited to 'sys/dev/usb/uhub.c')
| -rw-r--r-- | sys/dev/usb/uhub.c | 521 |
1 files changed, 0 insertions, 521 deletions
diff --git a/sys/dev/usb/uhub.c b/sys/dev/usb/uhub.c deleted file mode 100644 index 40ff36317addc..0000000000000 --- a/sys/dev/usb/uhub.c +++ /dev/null @@ -1,521 +0,0 @@ -/* $NetBSD: uhub.c,v 1.14 1999/01/08 11:58:25 augustss Exp $ */ -/* $FreeBSD$ */ - -/* - * Copyright (c) 1998 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Lennart Augustsson (augustss@carlstedt.se) at - * Carlstedt Research & Technology. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#if defined(__NetBSD__) -#include <sys/device.h> -#elif defined(__FreeBSD__) -#include <sys/module.h> -#include <sys/bus.h> -#endif -#include <sys/proc.h> - -#include <dev/usb/usb.h> - -#include <dev/usb/usbdi.h> -#include <dev/usb/usbdi_util.h> -#include <dev/usb/usbdivar.h> - -#ifdef USB_DEBUG -#define DPRINTF(x) if (usbdebug) printf x -#define DPRINTFN(n,x) if (usbdebug>(n)) printf x -extern int usbdebug; -extern char *usbd_error_strs[]; -#else -#define DPRINTF(x) -#define DPRINTFN(n,x) -#endif - -struct uhub_softc { - bdevice sc_dev; /* base device */ - usbd_device_handle sc_hub; /* USB device */ - usbd_pipe_handle sc_ipipe; /* interrupt pipe */ - u_int8_t sc_status[1]; /* XXX more ports */ - u_char sc_running; -}; - -usbd_status uhub_init_port __P((struct usbd_port *)); -void uhub_disconnect __P((struct usbd_port *up)); -usbd_status uhub_explore __P((usbd_device_handle hub)); -void uhub_intr __P((usbd_request_handle, usbd_private_handle, usbd_status)); - -/*void uhub_disco __P((void *));*/ - -USB_DECLARE_DRIVER(uhub); - -#if defined(__FreeBSD__) -devclass_t uhubroot_devclass; - -static device_method_t uhubroot_methods[] = { - DEVMETHOD(device_probe, uhub_match), - DEVMETHOD(device_attach, uhub_attach), - /* detach is not allowed for a root hub */ - {0,0} -}; - -static driver_t uhubroot_driver = { - "uhub", - uhubroot_methods, - DRIVER_TYPE_MISC, - sizeof(struct uhub_softc) -}; -#endif - -#if defined(__NetBSD__) -struct cfattach uhub_uhub_ca = { - sizeof(struct uhub_softc), uhub_match, uhub_attach -}; -#endif - -USB_MATCH(uhub) -{ - USB_MATCH_START(uhub, uaa); - usb_device_descriptor_t *dd = usbd_get_device_descriptor(uaa->device); - - DPRINTFN(5,("uhub_match, dd=%p\n", dd)); - /* - * The subclass for hubs seems to be 0 for some and 1 for others, - * so we just ignore the subclass. - */ - if (uaa->iface == 0 && dd->bDeviceClass == UCLASS_HUB) - return (UMATCH_DEVCLASS_DEVSUBCLASS); - return (UMATCH_NONE); -} - -USB_ATTACH(uhub) -{ - USB_ATTACH_START(uhub, sc, uaa); - usbd_device_handle dev = uaa->device; - char devinfo[1024]; - usbd_status r; - struct usbd_hub *hub; - usb_device_request_t req; - usb_hub_descriptor_t hubdesc; - int p, port, nports, nremov; - usbd_interface_handle iface; - usb_endpoint_descriptor_t *ed; - - DPRINTFN(1,("uhub_attach\n")); - sc->sc_hub = dev; - usbd_devinfo(dev, 1, devinfo); - USB_ATTACH_SETUP; - printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); - - r = usbd_set_config_index(dev, 0, 1); - if (r != USBD_NORMAL_COMPLETION) { - DPRINTF(("%s: configuration failed, error=%d(%s)\n", - USBDEVNAME(sc->sc_dev), r, usbd_error_strs[r])); - USB_ATTACH_ERROR_RETURN; - } - - if (dev->depth > USB_HUB_MAX_DEPTH) { - printf("%s: hub depth (%d) exceeded, hub ignored\n", - USBDEVNAME(sc->sc_dev), USB_HUB_MAX_DEPTH); - USB_ATTACH_ERROR_RETURN; - } - - /* Get hub descriptor. */ - req.bmRequestType = UT_READ_CLASS_DEVICE; - req.bRequest = UR_GET_DESCRIPTOR; - USETW(req.wValue, 0); - USETW(req.wIndex, 0); - USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE); - DPRINTFN(1,("usb_init_hub: getting hub descriptor\n")); - r = usbd_do_request(dev, &req, &hubdesc); - nports = hubdesc.bNbrPorts; - if (r == USBD_NORMAL_COMPLETION && nports > 7) { - USETW(req.wLength, USB_HUB_DESCRIPTOR_SIZE + (nports+1) / 8); - r = usbd_do_request(dev, &req, &hubdesc); - } - if (r != USBD_NORMAL_COMPLETION) { - DPRINTF(("%s: getting hub descriptor failed, error=%d(%s)\n", - USBDEVNAME(sc->sc_dev), r, usbd_error_strs[r])); - USB_ATTACH_ERROR_RETURN; - } - - for (nremov = 0, port = 1; port <= nports; port++) - if (!UHD_NOT_REMOV(&hubdesc, port)) - nremov++; - printf("%s: %d port%s with %d removable, %s powered\n", - USBDEVNAME(sc->sc_dev), nports, nports != 1 ? "s" : "", - nremov, dev->self_powered ? "self" : "bus"); - - - hub = malloc(sizeof(*hub) + (nports-1) * sizeof(struct usbd_port), - M_USB, M_NOWAIT); - if (hub == 0) - USB_ATTACH_ERROR_RETURN; - dev->hub = hub; - dev->hub->hubsoftc = sc; - hub->explore = uhub_explore; - hub->hubdesc = hubdesc; - - DPRINTFN(1,("usbhub_init_hub: selfpowered=%d, parent=%p, " - "parent->selfpowered=%d\n", - dev->self_powered, dev->powersrc->parent, - dev->powersrc->parent ? - dev->powersrc->parent->self_powered : 0)); - if (!dev->self_powered && dev->powersrc->parent && - !dev->powersrc->parent->self_powered) { - printf("%s: bus powered hub connected to bus powered hub, " - "ignored\n", - USBDEVNAME(sc->sc_dev)); - USB_ATTACH_ERROR_RETURN; - } - - /* Set up interrupt pipe. */ - r = usbd_device2interface_handle(dev, 0, &iface); - if (r != USBD_NORMAL_COMPLETION) { - printf("%s: no interface handle\n", USBDEVNAME(sc->sc_dev)); - USB_ATTACH_ERROR_RETURN; - } - ed = usbd_interface2endpoint_descriptor(iface, 0); - if (ed == 0) { - printf("%s: no endpoint descriptor\n", USBDEVNAME(sc->sc_dev)); - USB_ATTACH_ERROR_RETURN; - } - if ((ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) { - printf("%s: bad interrupt endpoint\n", USBDEVNAME(sc->sc_dev)); - USB_ATTACH_ERROR_RETURN; - } - - r = usbd_open_pipe_intr(iface, ed->bEndpointAddress,USBD_SHORT_XFER_OK, - &sc->sc_ipipe, sc, sc->sc_status, - sizeof(sc->sc_status), - uhub_intr); - if (r != USBD_NORMAL_COMPLETION) { - printf("%s: cannot open interrupt pipe\n", - USBDEVNAME(sc->sc_dev)); - USB_ATTACH_ERROR_RETURN; - } - - /* Wait with power off for a while. */ - usbd_delay_ms(dev, USB_POWER_DOWN_TIME); - - for (p = 0; p < nports; p++) { - struct usbd_port *up = &hub->ports[p]; - up->device = 0; - up->parent = dev; - up->portno = p+1; - r = uhub_init_port(up); - if (r != USBD_NORMAL_COMPLETION) - printf("%s: init of port %d failed\n", - USBDEVNAME(sc->sc_dev), up->portno); - } - sc->sc_running = 1; - - USB_ATTACH_SUCCESS_RETURN; -} - -#if defined(__FreeBSD__) -static int -uhub_detach(device_t self) -{ - struct uhub_softc *sc = device_get_softc(self); - int nports = sc->sc_hub->hub->hubdesc.bNbrPorts; - int p; - - for (p = 0; p < nports; p++) { - struct usbd_port *up = &sc->sc_hub->hub->ports[p]; - if (up->device) - uhub_disconnect(up); - } - - free(sc->sc_hub->hub, M_USB); - - return 0; -} -#endif - -usbd_status -uhub_init_port(up) - struct usbd_port *up; -{ - int port = up->portno; - usbd_device_handle dev = up->parent; - usbd_status r; - u_int16_t pstatus; - - r = usbd_get_port_status(dev, port, &up->status); - if (r != USBD_NORMAL_COMPLETION) - return (r); - pstatus = UGETW(up->status.wPortStatus); - DPRINTF(("usbd_init_port: adding hub port=%d status=0x%04x " - "change=0x%04x\n", - port, pstatus, UGETW(up->status.wPortChange))); - if ((pstatus & UPS_PORT_POWER) == 0) { - /* Port lacks power, turn it on */ - - /* First let the device go through a good power cycle, */ - usbd_delay_ms(dev, USB_PORT_POWER_DOWN_TIME); - - /* then turn the power on. */ - r = usbd_set_port_feature(dev, port, UHF_PORT_POWER); - if (r != USBD_NORMAL_COMPLETION) - return (r); - r = usbd_get_port_status(dev, port, &up->status); - if (r != USBD_NORMAL_COMPLETION) - return (r); - DPRINTF(("usb_init_port: turn on port %d power status=0x%04x " - "change=0x%04x\n", - port, UGETW(up->status.wPortStatus), - UGETW(up->status.wPortChange))); - /* Wait for stable power. */ - usbd_delay_ms(dev, dev->hub->hubdesc.bPwrOn2PwrGood * - UHD_PWRON_FACTOR); - } - if (dev->self_powered) - /* Self powered hub, give ports maximum current. */ - up->power = USB_MAX_POWER; - else - up->power = USB_MIN_POWER; - return (USBD_NORMAL_COMPLETION); -} - -usbd_status -uhub_explore(dev) - usbd_device_handle dev; -{ - usb_hub_descriptor_t *hd = &dev->hub->hubdesc; - struct uhub_softc *sc = dev->hub->hubsoftc; - struct usbd_port *up; - usbd_status r; - int port; - int change, status; - - DPRINTFN(10, ("uhub_explore dev=%p addr=%d\n", dev, dev->address)); - - if (!sc->sc_running) - return (USBD_NOT_STARTED); - - /* Ignore hubs that are too deep. */ - if (dev->depth > USB_HUB_MAX_DEPTH) - return (USBD_TOO_DEEP); - - for(port = 1; port <= hd->bNbrPorts; port++) { - up = &dev->hub->ports[port-1]; - r = usbd_get_port_status(dev, port, &up->status); - if (r != USBD_NORMAL_COMPLETION) { - DPRINTF(("uhub_explore: get port status failed, " - "error=%d(%s)\n", - r, usbd_error_strs[r])); - continue; - } - status = UGETW(up->status.wPortStatus); - change = UGETW(up->status.wPortChange); - DPRINTFN(5, ("uhub_explore: port %d status 0x%04x 0x%04x\n", - port, status, change)); - if (change & UPS_C_PORT_ENABLED) { - usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE); - if (status & UPS_PORT_ENABLED) { - printf("%s: illegal enable change, port %d\n", - USBDEVNAME(sc->sc_dev), port); - } else { - /* Port error condition. */ - if (up->restartcnt++ < USBD_RESTART_MAX) { - printf("%s: port error, restarting " - "port %d\n", - USBDEVNAME(sc->sc_dev), port); - goto disco; - } else { - printf("%s: port error, giving up " - "port %d\n", - USBDEVNAME(sc->sc_dev), port); - } - } - } - if (!(change & UPS_C_CONNECT_STATUS)) { - /* No status change, just do recursive explore. */ - if (up->device && up->device->hub) - up->device->hub->explore(up->device); - continue; - } - DPRINTF(("uhub_explore: status change hub=%d port=%d\n", - dev->address, port)); - usbd_clear_port_feature(dev, port, UHF_C_PORT_CONNECTION); - usbd_clear_port_feature(dev, port, UHF_C_PORT_ENABLE); - /* - * If there is already a device on the port the change status - * must mean that is has disconnected. Looking at the - * current connect status is not enough to figure this out - * since a new unit may have been connected before we handle - * the disconnect. - */ - disco: - if (up->device) { - /* Disconnected */ - DPRINTF(("uhub_explore: device %d disappeared " - "on port %d\n", - up->device->address, port)); - uhub_disconnect(up); - usbd_clear_port_feature(dev, port, - UHF_C_PORT_CONNECTION); - } - if (!(status & UPS_CURRENT_CONNECT_STATUS)) - continue; - - /* Connected */ - up->restartcnt = 0; - - /* Wait for maximum device power up time. */ - usbd_delay_ms(dev, USB_PORT_POWERUP_DELAY); - - /* Reset port, which implies enabling it. */ - if (usbd_reset_port(dev, port, &up->status) != - USBD_NORMAL_COMPLETION) - continue; - - /* Get device info and set its address. */ - r = usbd_new_device(&sc->sc_dev, dev->bus, - dev->depth + 1, status & UPS_LOW_SPEED, - port, up); - /* XXX retry a few times? */ - if (r != USBD_NORMAL_COMPLETION) { - DPRINTFN(-1,("uhub_explore: usb_new_device failed, " - "error=%d(%s)\n", r, usbd_error_strs[r])); - /* Avoid addressing problems by disabling. */ - /* usbd_reset_port(dev, port, &up->status); */ -/* XXX - * What should we do. The device may or may not be at its - * assigned address. In any case we'd like to ignore it. - * Maybe the port should be disabled until the device is - * disconnected. - */ - if (r == USBD_SET_ADDR_FAILED || 1) {/* XXX */ - /* The unit refused to accept a new - * address, and since we cannot leave - * at 0 we have to disable the port - * instead. */ - printf("%s: device problem, disabling " - "port %d\n", - USBDEVNAME(sc->sc_dev), port); - usbd_clear_port_feature(dev, port, - UHF_PORT_ENABLE); - /* Make sure we don't try to restart it. */ - up->restartcnt = USBD_RESTART_MAX; - } - } else { - if (up->device->hub) - up->device->hub->explore(up->device); - } - } - return (USBD_NORMAL_COMPLETION); -} - -void -uhub_disconnect(up) - struct usbd_port *up; -{ - usbd_device_handle dev = up->device; - usbd_pipe_handle p, n; - int i; - struct softc { bdevice sc_dev; }; /* all softc begin like this */ - - DPRINTFN(3,("uhub_disconnect: up=%p dev=%p port=%d\n", - up, dev, up->portno)); - - printf("%s: at %s port %d (addr %d) disconnected\n", - USBDEVNAME(((struct softc *)dev->softc)->sc_dev), - USBDEVNAME(((struct uhub_softc *)up->parent->softc)->sc_dev), - up->portno, dev->address); - - if (!dev->cdesc) { - /* Partially attached device, just drop it. */ - dev->bus->devices[dev->address] = 0; - up->device = 0; - return; - } - - for (i = 0; i < dev->cdesc->bNumInterface; i++) { - for (p = LIST_FIRST(&dev->ifaces[i].pipes); p; p = n) { - n = LIST_NEXT(p, next); - if (p->disco) - p->disco(p->discoarg); - usbd_abort_pipe(p); - usbd_close_pipe(p); - } - } - - /* XXX Free all data structures and disable further I/O. */ - if (dev->hub) { - struct usbd_port *rup; - int p, nports; - - DPRINTFN(3,("usb_disconnect: hub, recursing\n")); - nports = dev->hub->hubdesc.bNbrPorts; - for(p = 0; p < nports; p++) { - rup = &dev->hub->ports[p]; - if (rup->device) - uhub_disconnect(rup); - } - } - - dev->bus->devices[dev->address] = 0; - up->device = 0; - /* XXX free */ -#if defined(__FreeBSD__) - device_delete_child( - device_get_parent(((struct softc *)dev->softc)->sc_dev), - ((struct softc *)dev->softc)->sc_dev); -#endif -} - -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 (status != USBD_NORMAL_COMPLETION) - usbd_clear_endpoint_stall_async(sc->sc_ipipe); - else - usb_needs_explore(sc->sc_hub->bus); -} - -#if defined(__FreeBSD__) -DRIVER_MODULE(uhub, usb, uhubroot_driver, uhubroot_devclass, 0, 0); -DRIVER_MODULE(uhub, uhub, uhub_driver, uhub_devclass, usbd_driver_load, 0); -#endif |