sys/bus/usb/uhci_pci.c

   1 /*
   2  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   3  * All rights reserved.
   4  *
   5  * This code is derived from software contributed to The NetBSD Foundation
   6  * by Lennart Augustsson (augustss@carlstedt.se) at
   7  * Carlstedt Research & Technology.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *        This product includes software developed by the NetBSD
  20  *        Foundation, Inc. and its contributors.
  21  * 4. Neither the name of The NetBSD Foundation nor the names of its
  22  *    contributors may be used to endorse or promote products derived
  23  *    from this software without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  26  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  *
  37  * $FreeBSD: src/sys/dev/usb/uhci_pci.c,v 1.57 2005/03/01 07:50:11 imp Exp $
  38  * $DragonFly: src/sys/bus/usb/uhci_pci.c,v 1.11 2007/06/27 12:27:59 hasso Exp $
  39  */
  40
  41 /* Universal Host Controller Interface
  42  *
  43  * UHCI spec: http://www.intel.com/
  44  */
  45
  46 /* The low level controller code for UHCI has been split into
  47  * PCI probes and UHCI specific code. This was done to facilitate the
  48  * sharing of code between *BSD's
  49  */
  50
  51 #include "opt_bus.h"
  52
  53 #include <sys/param.h>
  54 #include <sys/systm.h>
  55 #include <sys/kernel.h>
  56 #include <sys/module.h>
  57 #include <sys/bus.h>
  58 #include <sys/queue.h>
  59 #include <sys/bus.h>
  60 #include <sys/rman.h>
  61
  62 #include <bus/pci/pcivar.h>
  63 #include <bus/pci/pcireg.h>
  64
  65 #include <bus/usb/usb.h>
  66 #include <bus/usb/usbdi.h>
  67 #include <bus/usb/usbdivar.h>
  68 #include <bus/usb/usb_mem.h>
  69
  70 #include <bus/usb/uhcireg.h>
  71 #include <bus/usb/uhcivar.h>
  72
  73 #define PCI_UHCI_VENDORID_INTEL         0x8086
  74 #define PCI_UHCI_VENDORID_VIA           0x1106
  75
  76 #define PCI_UHCI_DEVICEID_PIIX3         0x70208086
  77 static const char *uhci_device_piix3 = "Intel 82371SB (PIIX3) USB controller";
  78
  79 #define PCI_UHCI_DEVICEID_PIIX4         0x71128086
  80 #define PCI_UHCI_DEVICEID_PIIX4E        0x71128086      /* no separate stepping */
  81 static const char *uhci_device_piix4 = "Intel 82371AB/EB (PIIX4) USB controller";
  82
  83 #define PCI_UHCI_DEVICEID_ICH           0x24128086
  84 static const char *uhci_device_ich = "Intel 82801AA (ICH) USB controller";
  85
  86 #define PCI_UHCI_DEVICEID_ICH0          0x24228086
  87 static const char *uhci_device_ich0 = "Intel 82801AB (ICH0) USB controller";
  88
  89 #define PCI_UHCI_DEVICEID_ICH2_A        0x24428086
  90 static const char *uhci_device_ich2_a = "Intel 82801BA/BAM (ICH2) USB controller USB-A";
  91
  92 #define PCI_UHCI_DEVICEID_ICH2_B        0x24448086
  93 static const char *uhci_device_ich2_b = "Intel 82801BA/BAM (ICH2) USB controller USB-B";
  94
  95 #define PCI_UHCI_DEVICEID_ICH3_A        0x24828086
  96 static const char *uhci_device_ich3_a = "Intel 82801CA/CAM (ICH3) USB controller USB-A";
  97
  98 #define PCI_UHCI_DEVICEID_ICH3_B        0x24848086
  99 static const char *uhci_device_ich3_b = "Intel 82801CA/CAM (ICH3) USB controller USB-B";
 100
 101 #define PCI_UHCI_DEVICEID_ICH3_C        0x24878086
 102 static const char *uhci_device_ich3_c = "Intel 82801CA/CAM (ICH3) USB controller USB-C";
 103
 104 #define PCI_UHCI_DEVICEID_ICH4_A        0x24c28086
 105 static const char *uhci_device_ich4_a = "Intel 82801DB (ICH4) USB controller USB-A";
 106
 107 #define PCI_UHCI_DEVICEID_ICH4_B        0x24c48086
 108 static const char *uhci_device_ich4_b = "Intel 82801DB (ICH4) USB controller USB-B";
 109
 110 #define PCI_UHCI_DEVICEID_ICH4_C        0x24c78086
 111 static const char *uhci_device_ich4_c = "Intel 82801DB (ICH4) USB controller USB-C";
 112
 113 #define PCI_UHCI_DEVICEID_ICH5_A        0x24d28086
 114 static const char *uhci_device_ich5_a = "Intel 82801EB (ICH5) USB controller USB-A";
 115
 116 #define PCI_UHCI_DEVICEID_ICH5_B        0x24d48086
 117 static const char *uhci_device_ich5_b = "Intel 82801EB (ICH5) USB controller USB-B";
 118
 119 #define PCI_UHCI_DEVICEID_ICH5_C        0x24d78086
 120 static const char *uhci_device_ich5_c = "Intel 82801EB (ICH5) USB controller USB-C";
 121
 122 #define PCI_UHCI_DEVICEID_ICH5_D        0x24de8086
 123 static const char *uhci_device_ich5_d = "Intel 82801EB (ICH5) USB controller USB-D";
 124
 125 #define PCI_UHCI_DEVICEID_ICH6_A        0x26588086
 126 static const char *uhci_device_ich6_a = "Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A";
 127
 128 #define PCI_UHCI_DEVICEID_ICH6_B        0x26598086
 129 static const char *uhci_device_ich6_b = "Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-B";
 130
 131 #define PCI_UHCI_DEVICEID_ICH6_C        0x265a8086
 132 static const char *uhci_device_ich6_c = "Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-C";
 133
 134 #define PCI_UHCI_DEVICEID_ICH6_D        0x265b8086
 135 static const char *uhci_device_ich6_d = "Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-D";
 136
 137 #define PCI_UHCI_DEVICEID_440MX         0x719a8086
 138 static const char *uhci_device_440mx = "Intel 82443MX USB controller";
 139
 140 #define PCI_UHCI_DEVICEID_460GX         0x76028086
 141 static const char *uhci_device_460gx = "Intel 82372FB/82468GX USB controller";
 142
 143 #define PCI_UHCI_DEVICEID_VT83C572      0x30381106
 144 static const char *uhci_device_vt83c572 = "VIA 83C572 USB controller";
 145
 146 static const char *uhci_device_generic = "UHCI (generic) USB controller";
 147
 148 #define PCI_UHCI_BASE_REG               0x20
 149
 150
 151 static int uhci_pci_attach(device_t self);
 152 static int uhci_pci_detach(device_t self);
 153 static int uhci_pci_suspend(device_t self);
 154 static int uhci_pci_resume(device_t self);
 155
 156
 157 static int
 158 uhci_pci_suspend(device_t self)
 159 {
 160         uhci_softc_t *sc = device_get_softc(self);
 161         int err;
 162
 163         err = bus_generic_suspend(self);
 164         if (err)
 165                 return err;
 166         uhci_power(PWR_SUSPEND, sc);
 167
 168         return 0;
 169 }
 170
 171 static int
 172 uhci_pci_resume(device_t self)
 173 {
 174         uhci_softc_t *sc = device_get_softc(self);
 175
 176         pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
 177
 178         uhci_power(PWR_RESUME, sc);
 179         bus_generic_resume(self);
 180
 181         return 0;
 182 }
 183
 184 static const char *
 185 uhci_pci_match(device_t self)
 186 {
 187         u_int32_t device_id = pci_get_devid(self);
 188
 189         if (device_id == PCI_UHCI_DEVICEID_PIIX3) {
 190                 return (uhci_device_piix3);
 191         } else if (device_id == PCI_UHCI_DEVICEID_PIIX4) {
 192                 return (uhci_device_piix4);
 193         } else if (device_id == PCI_UHCI_DEVICEID_ICH) {
 194                 return (uhci_device_ich);
 195         } else if (device_id == PCI_UHCI_DEVICEID_ICH0) {
 196                 return (uhci_device_ich0);
 197         } else if (device_id == PCI_UHCI_DEVICEID_ICH2_A) {
 198                 return (uhci_device_ich2_a);
 199         } else if (device_id == PCI_UHCI_DEVICEID_ICH2_B) {
 200                 return (uhci_device_ich2_b);
 201         } else if (device_id == PCI_UHCI_DEVICEID_ICH3_A) {
 202                 return (uhci_device_ich3_a);
 203         } else if (device_id == PCI_UHCI_DEVICEID_ICH3_B) {
 204                 return (uhci_device_ich3_b);
 205         } else if (device_id == PCI_UHCI_DEVICEID_ICH3_C) {
 206                 return (uhci_device_ich3_c);
 207         } else if (device_id == PCI_UHCI_DEVICEID_ICH4_A) {
 208                 return (uhci_device_ich4_a);
 209         } else if (device_id == PCI_UHCI_DEVICEID_ICH4_B) {
 210                 return (uhci_device_ich4_b);
 211         } else if (device_id == PCI_UHCI_DEVICEID_ICH4_C) {
 212                 return (uhci_device_ich4_c);
 213         } else if (device_id == PCI_UHCI_DEVICEID_ICH5_A) {
 214                 return (uhci_device_ich5_a);
 215         } else if (device_id == PCI_UHCI_DEVICEID_ICH5_B) {
 216                 return (uhci_device_ich5_b);
 217         } else if (device_id == PCI_UHCI_DEVICEID_ICH5_C) {
 218                 return (uhci_device_ich5_c);
 219         } else if (device_id == PCI_UHCI_DEVICEID_ICH5_D) {
 220                 return (uhci_device_ich5_d);
 221         } else if (device_id == PCI_UHCI_DEVICEID_ICH6_A) {
 222                 return (uhci_device_ich6_a);
 223         } else if (device_id == PCI_UHCI_DEVICEID_ICH6_B) {
 224                 return (uhci_device_ich6_b);
 225         } else if (device_id == PCI_UHCI_DEVICEID_ICH6_C) {
 226                 return (uhci_device_ich6_c);
 227         } else if (device_id == PCI_UHCI_DEVICEID_ICH6_D) {
 228                 return (uhci_device_ich6_d);
 229         } else if (device_id == PCI_UHCI_DEVICEID_440MX) {
 230                 return (uhci_device_440mx);
 231         } else if (device_id == PCI_UHCI_DEVICEID_460GX) {
 232                 return (uhci_device_460gx);
 233         } else if (device_id == PCI_UHCI_DEVICEID_VT83C572) {
 234                 return (uhci_device_vt83c572);
 235         } else {
 236                 if (pci_get_class(self) == PCIC_SERIALBUS
 237                     && pci_get_subclass(self) == PCIS_SERIALBUS_USB
 238                     && pci_get_progif(self) == PCI_INTERFACE_UHCI) {
 239                         return (uhci_device_generic);
 240                 }
 241         }
 242
 243         return NULL;            /* dunno... */
 244 }
 245
 246 static int
 247 uhci_pci_probe(device_t self)
 248 {
 249         const char *desc = uhci_pci_match(self);
 250
 251         if (desc) {
 252                 device_set_desc(self, desc);
 253                 return 0;
 254         } else {
 255                 return ENXIO;
 256         }
 257 }
 258
 259 static int
 260 uhci_pci_attach(device_t self)
 261 {
 262         uhci_softc_t *sc = device_get_softc(self);
 263         int rid;
 264         int err;
 265
 266         pci_enable_busmaster(self);
 267
 268         rid = PCI_UHCI_BASE_REG;
 269         sc->io_res = bus_alloc_resource_any(self, SYS_RES_IOPORT, &rid,
 270             RF_ACTIVE);
 271         if (!sc->io_res) {
 272                 device_printf(self, "Could not map ports\n");
 273                 return ENXIO;
 274         }
 275         sc->iot = rman_get_bustag(sc->io_res);
 276         sc->ioh = rman_get_bushandle(sc->io_res);
 277
 278         /* disable interrupts */
 279         bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0);
 280
 281         rid = 0;
 282         sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
 283             RF_SHAREABLE | RF_ACTIVE);
 284         if (sc->irq_res == NULL) {
 285                 device_printf(self, "Could not allocate irq\n");
 286                 uhci_pci_detach(self);
 287                 return ENXIO;
 288         }
 289         sc->sc_bus.bdev = device_add_child(self, "usb", -1);
 290         if (!sc->sc_bus.bdev) {
 291                 device_printf(self, "Could not add USB device\n");
 292                 uhci_pci_detach(self);
 293                 return ENOMEM;
 294         }
 295         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
 296
 297         /* uhci_pci_match must never return NULL if uhci_pci_probe succeeded */
 298         device_set_desc(sc->sc_bus.bdev, uhci_pci_match(self));
 299         switch (pci_get_vendor(self)) {
 300         case PCI_UHCI_VENDORID_INTEL:
 301                 ksprintf(sc->sc_vendor, "Intel");
 302                 break;
 303         case PCI_UHCI_VENDORID_VIA:
 304                 ksprintf(sc->sc_vendor, "VIA");
 305                 break;
 306         default:
 307                 if (bootverbose)
 308                         device_printf(self, "(New UHCI DeviceId=0x%08x)\n",
 309                             pci_get_devid(self));
 310                 ksprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
 311         }
 312
 313         switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USBREV_MASK) {
 314         case PCI_USBREV_PRE_1_0:
 315                 sc->sc_bus.usbrev = USBREV_PRE_1_0;
 316                 break;
 317         case PCI_USBREV_1_0:
 318                 sc->sc_bus.usbrev = USBREV_1_0;
 319                 break;
 320         default:
 321                 sc->sc_bus.usbrev = USBREV_UNKNOWN;
 322                 break;
 323         }
 324
 325         err = bus_setup_intr(self, sc->irq_res, 0,
 326             (driver_intr_t *) uhci_intr, sc, &sc->ih, NULL);
 327         if (err) {
 328                 device_printf(self, "Could not setup irq, %d\n", err);
 329                 sc->ih = NULL;
 330                 uhci_pci_detach(self);
 331                 return ENXIO;
 332         }
 333         /*
 334          * Set the PIRQD enable bit and switch off all the others. We don't
 335          * want legacy support to interfere with us XXX Does this also mean
 336          * that the BIOS won't touch the keyboard anymore if it is connected
 337          * to the ports of the root hub?
 338          */
 339 #ifdef USB_DEBUG
 340         if (pci_read_config(self, PCI_LEGSUP, 2) != PCI_LEGSUP_USBPIRQDEN)
 341                 device_printf(self, "LegSup = 0x%04x\n",
 342                     pci_read_config(self, PCI_LEGSUP, 2));
 343 #endif
 344         pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
 345
 346         err = uhci_init(sc);
 347         if (!err) {
 348                 sc->sc_flags |= UHCI_SCFLG_DONEINIT;
 349                 err = device_probe_and_attach(sc->sc_bus.bdev);
 350         }
 351
 352         if (err) {
 353                 device_printf(self, "USB init failed\n");
 354                 uhci_pci_detach(self);
 355                 return EIO;
 356         }
 357         return 0;               /* success */
 358 }
 359
 360 int
 361 uhci_pci_detach(device_t self)
 362 {
 363         uhci_softc_t *sc = device_get_softc(self);
 364
 365         if (sc->sc_flags & UHCI_SCFLG_DONEINIT) {
 366                 uhci_detach(sc, 0);
 367                 sc->sc_flags &= ~UHCI_SCFLG_DONEINIT;
 368         }
 369
 370
 371         if (sc->irq_res && sc->ih) {
 372                 int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
 373
 374                 if (err)
 375                         /* XXX or should we panic? */
 376                         device_printf(self, "Could not tear down irq, %d\n",
 377                             err);
 378                 sc->ih = NULL;
 379         }
 380         if (sc->sc_bus.bdev) {
 381                 device_delete_child(self, sc->sc_bus.bdev);
 382                 sc->sc_bus.bdev = NULL;
 383         }
 384         if (sc->irq_res) {
 385                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
 386                 sc->irq_res = NULL;
 387         }
 388         if (sc->io_res) {
 389                 bus_release_resource(self, SYS_RES_IOPORT, PCI_UHCI_BASE_REG,
 390                     sc->io_res);
 391                 sc->io_res = NULL;
 392                 sc->iot = 0;
 393                 sc->ioh = 0;
 394         }
 395         return 0;
 396 }
 397
 398
 399 static device_method_t uhci_methods[] = {
 400         /* Device interface */
 401         DEVMETHOD(device_probe, uhci_pci_probe),
 402         DEVMETHOD(device_attach, uhci_pci_attach),
 403         DEVMETHOD(device_detach, uhci_pci_detach),
 404         DEVMETHOD(device_suspend, uhci_pci_suspend),
 405         DEVMETHOD(device_resume, uhci_pci_resume),
 406         DEVMETHOD(device_shutdown, bus_generic_shutdown),
 407
 408         /* Bus interface */
 409         DEVMETHOD(bus_print_child, bus_generic_print_child),
 410
 411         {0, 0}
 412 };
 413
 414 static driver_t uhci_driver = {
 415         "uhci",
 416         uhci_methods,
 417         sizeof(uhci_softc_t),
 418 };
 419
 420 static devclass_t uhci_devclass;
 421
 422 DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);
 423 DRIVER_MODULE(uhci, cardbus, uhci_driver, uhci_devclass, 0, 0);