sys/dev/cardbus/uhci_cardbus.c

   1 /*      $NetBSD: uhci_cardbus.c,v 1.12 2008/07/11 21:02:53 dyoung Exp $ */
   2
   3 /*
   4  * Copyright (c) 1998-2005 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Lennart Augustsson (lennart@augustsson.net) at
   9  * Carlstedt Research & Technology.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: uhci_cardbus.c,v 1.12 2008/07/11 21:02:53 dyoung Exp $");
  35
  36 #include "ehci_cardbus.h"
  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 <sys/bus.h>
  46
  47 #include <dev/cardbus/cardbusvar.h>
  48 #include <dev/cardbus/usb_cardbus.h>
  49
  50 #include <dev/usb/usb.h>
  51 #include <dev/usb/usbdi.h>
  52 #include <dev/usb/usbdivar.h>
  53 #include <dev/usb/usb_mem.h>
  54
  55 #include <dev/usb/uhcireg.h>
  56 #include <dev/usb/uhcivar.h>
  57
  58 struct uhci_cardbus_softc {
  59         uhci_softc_t            sc;
  60 #if NEHCI_CARDBUS > 0
  61         struct usb_cardbus      sc_cardbus;
  62 #endif
  63         cardbus_chipset_tag_t   sc_cc;
  64         cardbus_function_tag_t  sc_cf;
  65         cardbus_devfunc_t       sc_ct;
  66         cardbustag_t            sc_tag;
  67         void                    *sc_ih;         /* interrupt vectoring */
  68 };
  69
  70 static int      uhci_cardbus_match(device_t, cfdata_t, void *);
  71 static void     uhci_cardbus_attach(device_t, device_t, void *);
  72 static int      uhci_cardbus_detach(device_t, int);
  73
  74 CFATTACH_DECL_NEW(uhci_cardbus, sizeof(struct uhci_cardbus_softc),
  75     uhci_cardbus_match, uhci_cardbus_attach, uhci_cardbus_detach, uhci_activate);
  76
  77 #define CARDBUS_INTERFACE_UHCI  PCI_INTERFACE_UHCI
  78 #define CARDBUS_CBIO            PCI_CBIO
  79 #define cardbus_findvendor      pci_findvendor
  80 #define cardbus_devinfo         pci_devinfo
  81
  82 static int
  83 uhci_cardbus_match(device_t parent, cfdata_t match, void *aux)
  84 {
  85         struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
  86
  87         if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
  88             CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
  89             CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_UHCI)
  90                 return (1);
  91
  92         return (0);
  93 }
  94
  95 static void
  96 uhci_cardbus_attach(device_t parent, device_t self,
  97     void *aux)
  98 {
  99         struct uhci_cardbus_softc *sc = device_private(self);
 100         struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
 101         cardbus_devfunc_t ct = ca->ca_ct;
 102         cardbus_chipset_tag_t cc = ct->ct_cc;
 103         cardbus_function_tag_t cf = ct->ct_cf;
 104         cardbustag_t tag = ca->ca_tag;
 105         cardbusreg_t csr;
 106         const char *vendor;
 107         const char *devname = device_xname(self);
 108         char devinfo[256];
 109         usbd_status r;
 110
 111         sc->sc.sc_dev = self;
 112         sc->sc.sc_bus.hci_private = sc;
 113
 114         cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo, sizeof(devinfo));
 115         printf(": %s (rev. 0x%02x)\n", devinfo, CARDBUS_REVISION(ca->ca_class));
 116
 117         /* Map I/O registers */
 118         if (Cardbus_mapreg_map(ct, CARDBUS_CBIO, CARDBUS_MAPREG_TYPE_IO, 0,
 119                            &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
 120                 printf("%s: can't map i/o space\n", devname);
 121                 return;
 122         }
 123
 124         sc->sc_cc = cc;
 125         sc->sc_cf = cf;
 126         sc->sc_ct = ct;
 127         sc->sc_tag = tag;
 128         sc->sc.sc_bus.dmatag = ca->ca_dmat;
 129
 130 #if rbus
 131 #else
 132 XXX     (ct->ct_cf->cardbus_io_open)(cc, 0, iob, iob + 0x40);
 133 #endif
 134         (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
 135         (ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
 136
 137         /* Enable the device. */
 138         csr = cardbus_conf_read(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG);
 139         cardbus_conf_write(cc, cf, tag, CARDBUS_COMMAND_STATUS_REG,
 140                        csr | CARDBUS_COMMAND_MASTER_ENABLE
 141                            | CARDBUS_COMMAND_IO_ENABLE);
 142
 143         /* Disable interrupts, so we don't get any spurious ones. */
 144         bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
 145
 146         /* Map and establish the interrupt. */
 147         sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
 148                                            IPL_USB, uhci_intr, sc);
 149         if (sc->sc_ih == NULL) {
 150                 printf("%s: couldn't establish interrupt\n", devname);
 151                 return;
 152         }
 153
 154         /* Set LEGSUP register to its default value. */
 155         cardbus_conf_write(cc, cf, tag, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN);
 156
 157         switch(cardbus_conf_read(cc, cf, tag, PCI_USBREV) & PCI_USBREV_MASK) {
 158         case PCI_USBREV_PRE_1_0:
 159                 sc->sc.sc_bus.usbrev = USBREV_PRE_1_0;
 160                 break;
 161         case PCI_USBREV_1_0:
 162                 sc->sc.sc_bus.usbrev = USBREV_1_0;
 163                 break;
 164         case PCI_USBREV_1_1:
 165                 sc->sc.sc_bus.usbrev = USBREV_1_1;
 166                 break;
 167         default:
 168                 sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
 169                 break;
 170         }
 171
 172         /* Figure out vendor for root hub descriptor. */
 173         vendor = cardbus_findvendor(ca->ca_id);
 174         sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
 175         if (vendor)
 176                 strlcpy(sc->sc.sc_vendor, vendor, sizeof(sc->sc.sc_vendor));
 177         else
 178                 snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
 179                     "vendor 0x%04x", CARDBUS_VENDOR(ca->ca_id));
 180
 181         r = uhci_init(&sc->sc);
 182         if (r != USBD_NORMAL_COMPLETION) {
 183                 printf("%s: init failed, error=%d\n", devname, r);
 184
 185                 /* Avoid spurious interrupts. */
 186                 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
 187                 sc->sc_ih = NULL;
 188
 189                 return;
 190         }
 191
 192 #if NEHCI_CARDBUS > 0
 193         usb_cardbus_add(&sc->sc_cardbus, ca, self);
 194 #endif
 195
 196         /* Attach usb device. */
 197         sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
 198 }
 199
 200 static int
 201 uhci_cardbus_detach(device_t self, int flags)
 202 {
 203         struct uhci_cardbus_softc *sc = device_private(self);
 204         struct cardbus_devfunc *ct = sc->sc_ct;
 205         int rv;
 206
 207         rv = uhci_detach(&sc->sc, flags);
 208         if (rv)
 209                 return (rv);
 210         if (sc->sc_ih != NULL) {
 211                 cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
 212                 sc->sc_ih = NULL;
 213         }
 214         if (sc->sc.sc_size) {
 215                 Cardbus_mapreg_unmap(ct, CARDBUS_CBIO, sc->sc.iot,
 216                     sc->sc.ioh, sc->sc.sc_size);
 217                 sc->sc.sc_size = 0;
 218         }
 219 #if NEHCI_CARDBUS > 0
 220         usb_cardbus_rem(&sc->sc_cardbus);
 221 #endif
 222         return (0);
 223 }