FreeBSD/Linux Kernel Cross Reference
sys/dev/cardbus/ehci_cardbus.c

     /*      $NetBSD: ehci_cardbus.c,v 1.6 2002/10/02 16:33:41 thorpej Exp $ */
     
     /*
      * Copyright (c) 1998 The NetBSD Foundation, Inc.
      * All rights reserved.
      *
      * This code is derived from software contributed to The NetBSD Foundation
      * by Lennart Augustsson (lennart@augustsson.net) 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/cdefs.h>
    __KERNEL_RCSID(0, "$NetBSD: ehci_cardbus.c,v 1.6 2002/10/02 16:33:41 thorpej Exp $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/device.h>
    #include <sys/proc.h>
    
    #include <machine/bus.h>
    
    #if defined pciinc
    #include <dev/pci/pcidevs.h>
    #endif
    
    #include <dev/cardbus/cardbusvar.h>
    #include <dev/cardbus/cardbusdevs.h>
    
    #include <dev/cardbus/usb_cardbus.h>
    
    #include <dev/usb/usb.h>
    #include <dev/usb/usbdi.h>
    #include <dev/usb/usbdivar.h>
    #include <dev/usb/usb_mem.h>
    
    #include <dev/usb/ehcireg.h>
    #include <dev/usb/ehcivar.h>
    
    #ifdef EHCI_DEBUG
    #define DPRINTF(x)      if (ehcidebug) printf x
    extern int ehcidebug;
    #else
    #define DPRINTF(x)
    #endif
    
    int     ehci_cardbus_match(struct device *, struct cfdata *, void *);
    void    ehci_cardbus_attach(struct device *, struct device *, void *);
    int     ehci_cardbus_detach(device_ptr_t, int);
    
    struct ehci_cardbus_softc {
            ehci_softc_t            sc;
            cardbus_chipset_tag_t   sc_cc;
            cardbus_function_tag_t  sc_cf;
            cardbus_devfunc_t       sc_ct;
            void                    *sc_ih;         /* interrupt vectoring */
    };
    
    CFATTACH_DECL(ehci_cardbus, sizeof(struct ehci_cardbus_softc),
        ehci_cardbus_match, ehci_cardbus_attach, ehci_cardbus_detach, ehci_activate);
    
    #define CARDBUS_INTERFACE_EHCI PCI_INTERFACE_EHCI
    #define CARDBUS_CBMEM PCI_CBMEM
    #define cardbus_findvendor pci_findvendor
    #define cardbus_devinfo pci_devinfo
    
    static TAILQ_HEAD(, usb_cardbus) ehci_cardbus_alldevs =
            TAILQ_HEAD_INITIALIZER(ehci_cardbus_alldevs);
    
    int
    ehci_cardbus_match(struct device *parent, struct cfdata *match, void *aux)
   {
           struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
   
           if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
               CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
               CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_EHCI)
                   return (1);
    
           return (0);
   }
   
   void
   ehci_cardbus_attach(struct device *parent, struct device *self, void *aux)
   {
           struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
           struct cardbus_attach_args *ca = aux;
           cardbus_devfunc_t ct = ca->ca_ct;
           cardbus_chipset_tag_t cc = ct->ct_cc;
           cardbus_function_tag_t cf = ct->ct_cf;
           cardbusreg_t csr;
           char devinfo[256];
           usbd_status r;
           char *vendor;
           u_int ncomp;
           const char *devname = sc->sc.sc_bus.bdev.dv_xname;
           struct usb_cardbus *up;
   
           cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo);
           printf(": %s (rev. 0x%02x)\n", devinfo,
                  CARDBUS_REVISION(ca->ca_class));
   
           /* Map I/O registers */
           if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
                              &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
                   printf("%s: can't map mem space\n", devname);
                   return;
           }
   
           sc->sc_cc = cc;
           sc->sc_cf = cf;
           sc->sc_ct = ct;
           sc->sc.sc_bus.dmatag = ca->ca_dmat;
   
   #if rbus
   #else
   XXX     (ct->ct_cf->cardbus_mem_open)(cc, 0, iob, iob + 0x40);
   #endif
           (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
           (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
   
           /* Enable the device. */
           csr = cardbus_conf_read(cc, cf, ca->ca_tag,
                                   CARDBUS_COMMAND_STATUS_REG);
           cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
                          csr | CARDBUS_COMMAND_MASTER_ENABLE
                              | CARDBUS_COMMAND_MEM_ENABLE);
   
           /* Disable interrupts, so we don't get any spurious ones. */
           sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
           DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs));
           EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
   
           sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
                                              IPL_USB, ehci_intr, sc);
           if (sc->sc_ih == NULL) {
                   printf("%s: couldn't establish interrupt\n", devname);
                   return;
           }
           printf("%s: interrupting at %d\n", devname, ca->ca_intrline);
   
           /* Figure out vendor for root hub descriptor. */
           vendor = cardbus_findvendor(ca->ca_id);
           sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
           if (vendor)
                   strncpy(sc->sc.sc_vendor, vendor,
                           sizeof(sc->sc.sc_vendor) - 1);
           else
                   sprintf(sc->sc.sc_vendor, "vendor 0x%04x", 
                           CARDBUS_VENDOR(ca->ca_id));
           
           /*
            * Find companion controllers.  According to the spec they always
            * have lower function numbers so they should be enumerated already.
            */
           ncomp = 0;
           TAILQ_FOREACH(up, &ehci_cardbus_alldevs, next) {
                   if (up->bus == ca->ca_bus && up->device == ca->ca_device) {
                           DPRINTF(("ehci_cardbus_attach: companion %s\n",
                                    USBDEVNAME(up->usb->bdev)));
                           sc->sc.sc_comps[ncomp++] = up->usb;
                           if (ncomp >= EHCI_COMPANION_MAX)
                                   break;
                   }
           }
           sc->sc.sc_ncomp = ncomp;
   
           r = ehci_init(&sc->sc);
           if (r != USBD_NORMAL_COMPLETION) {
                   printf("%s: init failed, error=%d\n", devname, r);
   
                   /* Avoid spurious interrupts. */
                   cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
                   sc->sc_ih = NULL;
   
                   return;
           }
   
           /* Attach usb device. */
           sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
                                          usbctlprint);
   }
   
   int
   ehci_cardbus_detach(device_ptr_t self, int flags)
   {
           struct ehci_cardbus_softc *sc = (struct ehci_cardbus_softc *)self;
           struct cardbus_devfunc *ct = sc->sc_ct;
           int rv;
   
           rv = ehci_detach(&sc->sc, flags);
           if (rv)
                   return (rv);
           if (sc->sc_ih != NULL) {
                   cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
                   sc->sc_ih = NULL;
           }
           if (sc->sc.sc_size) {
                   Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
                       sc->sc.ioh, sc->sc.sc_size);
                   sc->sc.sc_size = 0;
           }
           return (0);
   }
   
   void
   usb_cardbus_add(struct usb_cardbus *up, struct cardbus_attach_args *ca, struct usbd_bus *bu)
   {
           TAILQ_INSERT_TAIL(&ehci_cardbus_alldevs, up, next);
           up->bus = ca->ca_bus;
           up->device = ca->ca_device;
           up->function = ca->ca_function;
           up->usb = bu;
   }
   
   void
   usb_cardbus_rem(struct usb_cardbus *up)
   {
           TAILQ_REMOVE(&ehci_cardbus_alldevs, up, next);
   }

Cache object: 152aff7d4b4a81abd11e84a397e8b25d