sys/arch/arm/s3c2xx0/ohci_s3c24x0.c

   1 /*      $NetBSD: ohci_s3c24x0.c,v 1.5 2008/04/26 14:57:44 drochner Exp $ */
   2
   3 /* derived from ohci_pci.c */
   4
   5 /*
   6  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   7  * All rights reserved.
   8  *
   9  * This code is derived from software contributed to The NetBSD Foundation
  10  * by Lennart Augustsson (lennart@augustsson.net) at
  11  * Carlstedt Research & Technology.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __KERNEL_RCSID(0, "$NetBSD: ohci_s3c24x0.c,v 1.5 2008/04/26 14:57:44 drochner Exp $");
  37
  38 #include <sys/param.h>
  39 #include <sys/systm.h>
  40 #include <sys/kernel.h>
  41 #include <sys/device.h>
  42 #include <sys/proc.h>
  43 #include <sys/queue.h>
  44
  45 #include <machine/bus.h>
  46
  47 #include <arm/s3c2xx0/s3c24x0var.h>
  48
  49 #include <dev/usb/usb.h>
  50 #include <dev/usb/usbdi.h>
  51 #include <dev/usb/usbdivar.h>
  52 #include <dev/usb/usb_mem.h>
  53
  54 #include <dev/usb/ohcireg.h>
  55 #include <dev/usb/ohcivar.h>
  56
  57 int     ohci_ssio_match(struct device *, struct cfdata *, void *);
  58 void    ohci_ssio_attach(struct device *, struct device *, void *);
  59 int     ohci_ssio_detach(device_ptr_t, int);
  60
  61 extern  int ohcidebug;
  62
  63 struct ohci_ssio_softc {
  64         ohci_softc_t            sc;
  65
  66         void                    *sc_ih;         /* interrupt vectoring */
  67 };
  68
  69 CFATTACH_DECL_NEW(ohci_ssio, sizeof(struct ohci_ssio_softc),
  70     ohci_ssio_match, ohci_ssio_attach, ohci_ssio_detach, ohci_activate);
  71
  72 int
  73 ohci_ssio_match(struct device *parent, struct cfdata *match, void *aux)
  74 {
  75         struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
  76         /* XXX: check some registers */
  77
  78         if (sa->sa_dmat == NULL) {
  79                 /* busdma tag is not initialized. */
  80                 return 0;
  81         }
  82
  83         return 1;
  84 }
  85
  86 void
  87 ohci_ssio_attach(struct device *parent, struct device *self, void *aux)
  88 {
  89         struct ohci_ssio_softc *sc = device_private(self);
  90         struct s3c2xx0_attach_args *sa = (struct s3c2xx0_attach_args *)aux;
  91
  92         usbd_status r;
  93
  94         aprint_normal("\n");
  95
  96         sc->sc.sc_dev = self;
  97         sc->sc.sc_bus.hci_private = sc;
  98
  99         sc->sc.iot = sa->sa_iot;
 100         /*ohcidebug=15;*/
 101
 102         /* Map I/O registers */
 103         if (bus_space_map(sc->sc.iot, sa->sa_addr, 0x5c, 0, &sc->sc.ioh)) {
 104                 aprint_error_dev(self, "can't map mem space\n");
 105                 return;
 106         }
 107
 108         /* Disable interrupts, so we don't get any spurious ones. */
 109         bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
 110                           OHCI_ALL_INTRS);
 111
 112         sc->sc.sc_bus.dmatag = sa->sa_dmat;
 113
 114         /* Enable the device. */
 115         /* XXX: provide clock to USB block */
 116
 117         /* establish the interrupt. */
 118         sc->sc_ih = s3c24x0_intr_establish(sa->sa_intr, IPL_USB, IST_NONE, ohci_intr, sc);
 119         if (sc->sc_ih == NULL) {
 120                 aprint_error_dev(self, "couldn't establish interrupt\n");
 121                 return;
 122         }
 123
 124         strlcpy(sc->sc.sc_vendor, "Samsung", sizeof sc->sc.sc_vendor);
 125
 126         r = ohci_init(&sc->sc);
 127         if (r != USBD_NORMAL_COMPLETION) {
 128                 aprint_error_dev(self, "init failed, error=%d\n", r);
 129                 return;
 130         }
 131
 132         /* Attach usb device. */
 133         sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
 134 }
 135
 136 int
 137 ohci_ssio_detach(device_ptr_t self, int flags)
 138 {
 139         return (0);
 140 }