sys/bus/usb/ohci_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/ohci_pci.c,v 1.44.2.1 2006/01/29 01:26:46 iedowse Exp $
  38  */
  39
  40 /*
  41  * USB Open Host Controller driver.
  42  *
  43  * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
  44  */
  45
  46 /* The low level controller code for OHCI has been split into
  47  * PCI probes and OHCI specific code. This was done to facilitate the
  48  * sharing of code between *BSD's
  49  */
  50
  51 #include <sys/param.h>
  52 #include <sys/systm.h>
  53 #include <sys/kernel.h>
  54 #include <sys/module.h>
  55 #include <sys/bus.h>
  56 #include <sys/queue.h>
  57 #include <sys/rman.h>
  58 #include <sys/thread2.h>
  59
  60 #include <bus/pci/pcivar.h>
  61 #include <bus/pci/pcireg.h>
  62
  63 #include <bus/usb/usb.h>
  64 #include <bus/usb/usbdi.h>
  65 #include <bus/usb/usbdivar.h>
  66 #include <bus/usb/usb_mem.h>
  67
  68 #include <bus/usb/ohcireg.h>
  69 #include <bus/usb/ohcivar.h>
  70
  71 #define PCI_OHCI_VENDORID_ACERLABS      0x10b9
  72 #define PCI_OHCI_VENDORID_AMD           0x1022
  73 #define PCI_OHCI_VENDORID_APPLE         0x106b
  74 #define PCI_OHCI_VENDORID_ATI           0x1002
  75 #define PCI_OHCI_VENDORID_CMDTECH       0x1095
  76 #define PCI_OHCI_VENDORID_NEC           0x1033
  77 #define PCI_OHCI_VENDORID_NVIDIA        0x12D2
  78 #define PCI_OHCI_VENDORID_NVIDIA2       0x10DE
  79 #define PCI_OHCI_VENDORID_OPTI          0x1045
  80 #define PCI_OHCI_VENDORID_SIS           0x1039
  81 #define PCI_OHCI_VENDORID_SUN           0x108e
  82
  83 #define PCI_OHCI_DEVICEID_ALADDIN_V     0x523710b9
  84 static const char *ohci_device_aladdin_v = "AcerLabs M5237 (Aladdin-V) USB controller";
  85
  86 #define PCI_OHCI_DEVICEID_AMD756        0x740c1022
  87 static const char *ohci_device_amd756 = "AMD-756 USB Controller";
  88
  89 #define PCI_OHCI_DEVICEID_CS5536        0x20941022
  90 static const char *ohci_device_cs5536 = "AMD CS5536 [geode companion] USB Controller";
  91
  92 #define PCI_OHCI_DEVICEID_AMD766        0x74141022
  93 static const char *ohci_device_amd766 = "AMD-766 USB Controller";
  94
  95 #define PCI_OHCI_DEVICEID_SB400_1       0x43741002
  96 #define PCI_OHCI_DEVICEID_SB400_2       0x43751002
  97 static const char *ohci_device_sb400 = "ATI SB400 USB Controller";
  98
  99 #define PCI_OHCI_DEVICEID_FIRELINK      0xc8611045
 100 static const char *ohci_device_firelink = "OPTi 82C861 (FireLink) USB controller";
 101
 102 #define PCI_OHCI_DEVICEID_NEC           0x00351033
 103 static const char *ohci_device_nec = "NEC uPD 9210 USB controller";
 104
 105 #define PCI_OHCI_DEVICEID_NFORCE3       0x00d710de
 106 static const char *ohci_device_nforce3 = "nVidia nForce3 USB Controller";
 107
 108 #define PCI_OHCI_DEVICEID_USB0670       0x06701095
 109 static const char *ohci_device_usb0670 = "CMD Tech 670 (USB0670) USB controller";
 110
 111 #define PCI_OHCI_DEVICEID_USB0673       0x06731095
 112 static const char *ohci_device_usb0673 = "CMD Tech 673 (USB0673) USB controller";
 113
 114 #define PCI_OHCI_DEVICEID_SIS5571       0x70011039
 115 static const char *ohci_device_sis5571 = "SiS 5571 USB controller";
 116
 117 #define PCI_OHCI_DEVICEID_KEYLARGO      0x0019106b
 118 static const char *ohci_device_keylargo = "Apple KeyLargo USB controller";
 119
 120 #define PCI_OHCI_DEVICEID_PCIO2USB      0x1103108e
 121 static const char *ohci_device_pcio2usb = "Sun PCIO-2 USB controller";
 122
 123 static const char *ohci_device_generic = "OHCI (generic) USB controller";
 124
 125 #define PCI_OHCI_BASE_REG       0x10
 126
 127
 128 static int ohci_pci_attach(device_t self);
 129 static int ohci_pci_detach(device_t self);
 130 static int ohci_pci_suspend(device_t self);
 131 static int ohci_pci_resume(device_t self);
 132
 133 static int
 134 ohci_pci_suspend(device_t self)
 135 {
 136         ohci_softc_t *sc = device_get_softc(self);
 137         int err;
 138
 139         err = bus_generic_suspend(self);
 140         if (err)
 141                 return err;
 142         ohci_power(PWR_SUSPEND, sc);
 143
 144         return 0;
 145 }
 146
 147 static int
 148 ohci_pci_resume(device_t self)
 149 {
 150         ohci_softc_t *sc = device_get_softc(self);
 151
 152 #ifndef BURN_BRIDGES
 153         uint32_t reg, int_line;
 154
 155         if (pci_get_powerstate(self) != PCI_POWERSTATE_D0) {
 156                 device_printf(self, "chip is in D%d mode "
 157                         "-- setting to D0\n", pci_get_powerstate(self));
 158                 reg = pci_read_config(self, PCI_CBMEM, 4);
 159                 int_line = pci_read_config(self, PCIR_INTLINE, 4);
 160                 pci_set_powerstate(self, PCI_POWERSTATE_D0);
 161                 pci_write_config(self, PCI_CBMEM, reg, 4);
 162                 pci_write_config(self, PCIR_INTLINE, int_line, 4);
 163         }
 164 #endif  /* !BURN_BRIDGES */
 165
 166         ohci_power(PWR_RESUME, sc);
 167         bus_generic_resume(self);
 168
 169         return 0;
 170 }
 171
 172 static const char *
 173 ohci_pci_match(device_t self)
 174 {
 175         u_int32_t device_id = pci_get_devid(self);
 176
 177         switch (device_id) {
 178         case PCI_OHCI_DEVICEID_ALADDIN_V:
 179                 return (ohci_device_aladdin_v);
 180         case PCI_OHCI_DEVICEID_AMD756:
 181                 return (ohci_device_amd756);
 182         case PCI_OHCI_DEVICEID_AMD766:
 183                 return (ohci_device_amd766);
 184         case PCI_OHCI_DEVICEID_CS5536:
 185                 return (ohci_device_cs5536);
 186         case PCI_OHCI_DEVICEID_SB400_1:
 187         case PCI_OHCI_DEVICEID_SB400_2:
 188                 return (ohci_device_sb400);
 189         case PCI_OHCI_DEVICEID_USB0670:
 190                 return (ohci_device_usb0670);
 191         case PCI_OHCI_DEVICEID_USB0673:
 192                 return (ohci_device_usb0673);
 193         case PCI_OHCI_DEVICEID_FIRELINK:
 194                 return (ohci_device_firelink);
 195         case PCI_OHCI_DEVICEID_NEC:
 196                 return (ohci_device_nec);
 197         case PCI_OHCI_DEVICEID_NFORCE3:
 198                 return (ohci_device_nforce3);
 199         case PCI_OHCI_DEVICEID_SIS5571:
 200                 return (ohci_device_sis5571);
 201         case PCI_OHCI_DEVICEID_KEYLARGO:
 202                 return (ohci_device_keylargo);
 203         case PCI_OHCI_DEVICEID_PCIO2USB:
 204                 return (ohci_device_pcio2usb);
 205         default:
 206                 if (pci_get_class(self) == PCIC_SERIALBUS
 207                     && pci_get_subclass(self) == PCIS_SERIALBUS_USB
 208                     && pci_get_progif(self) == PCI_INTERFACE_OHCI) {
 209                         return (ohci_device_generic);
 210                 }
 211         }
 212
 213         return NULL;            /* dunno */
 214 }
 215
 216 static int
 217 ohci_pci_probe(device_t self)
 218 {
 219         const char *desc = ohci_pci_match(self);
 220
 221         if (desc) {
 222                 device_set_desc(self, desc);
 223                 device_set_async_attach(self, TRUE);
 224                 return 0;
 225         } else {
 226                 return ENXIO;
 227         }
 228 }
 229
 230 static int
 231 ohci_pci_attach(device_t self)
 232 {
 233         ohci_softc_t *sc = device_get_softc(self);
 234         int err;
 235         int rid;
 236
 237         /* XXX where does it say so in the spec? */
 238         sc->sc_bus.usbrev = USBREV_1_0;
 239
 240         pci_enable_busmaster(self);
 241
 242         /*
 243          * Some Sun PCIO-2 USB controllers have their intpin register
 244          * bogusly set to 0, although it should be 4. Correct that.
 245          */
 246         if (pci_get_devid(self) == PCI_OHCI_DEVICEID_PCIO2USB &&
 247             pci_get_intpin(self) == 0)
 248                 pci_set_intpin(self, 4);
 249
 250         rid = PCI_CBMEM;
 251         sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
 252             RF_ACTIVE);
 253         if (!sc->io_res) {
 254                 device_printf(self, "Could not map memory\n");
 255                 return ENXIO;
 256         }
 257         sc->iot = rman_get_bustag(sc->io_res);
 258         sc->ioh = rman_get_bushandle(sc->io_res);
 259
 260         rid = 0;
 261         sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
 262             RF_SHAREABLE | RF_ACTIVE);
 263         if (sc->irq_res == NULL) {
 264                 device_printf(self, "Could not allocate irq\n");
 265                 ohci_pci_detach(self);
 266                 return ENXIO;
 267         }
 268         sc->sc_bus.bdev = device_add_child(self, "usb", -1);
 269         if (!sc->sc_bus.bdev) {
 270                 device_printf(self, "Could not add USB device\n");
 271                 ohci_pci_detach(self);
 272                 return ENOMEM;
 273         }
 274         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
 275
 276         /* ohci_pci_match will never return NULL if ohci_pci_probe succeeded */
 277         device_set_desc(sc->sc_bus.bdev, ohci_pci_match(self));
 278         switch (pci_get_vendor(self)) {
 279         case PCI_OHCI_VENDORID_ACERLABS:
 280                 ksprintf(sc->sc_vendor, "AcerLabs");
 281                 break;
 282         case PCI_OHCI_VENDORID_AMD:
 283                 ksprintf(sc->sc_vendor, "AMD");
 284                 break;
 285         case PCI_OHCI_VENDORID_APPLE:
 286                 ksprintf(sc->sc_vendor, "Apple");
 287                 break;
 288         case PCI_OHCI_VENDORID_ATI:
 289                 ksprintf(sc->sc_vendor, "ATI");
 290                 break;
 291         case PCI_OHCI_VENDORID_CMDTECH:
 292                 ksprintf(sc->sc_vendor, "CMDTECH");
 293                 break;
 294         case PCI_OHCI_VENDORID_NEC:
 295                 ksprintf(sc->sc_vendor, "NEC");
 296                 break;
 297         case PCI_OHCI_VENDORID_NVIDIA:
 298         case PCI_OHCI_VENDORID_NVIDIA2:
 299                 ksprintf(sc->sc_vendor, "nVidia");
 300                 break;
 301         case PCI_OHCI_VENDORID_OPTI:
 302                 ksprintf(sc->sc_vendor, "OPTi");
 303                 break;
 304         case PCI_OHCI_VENDORID_SIS:
 305                 ksprintf(sc->sc_vendor, "SiS");
 306                 break;
 307         default:
 308                 if (bootverbose)
 309                         device_printf(self, "(New OHCI DeviceId=0x%08x)\n",
 310                             pci_get_devid(self));
 311                 ksprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
 312         }
 313
 314         err = bus_setup_intr(self, sc->irq_res, 0,
 315             (driver_intr_t *) ohci_intr, sc, &sc->ih, NULL);
 316         if (err) {
 317                 device_printf(self, "Could not setup irq, %d\n", err);
 318                 sc->ih = NULL;
 319                 ohci_pci_detach(self);
 320                 return ENXIO;
 321         }
 322
 323         /*
 324          * OHCI interrupts which occur early will leave them disabled,
 325          * so run the interrupt manually once we're done with the init.
 326          */
 327         err = ohci_init(sc);
 328         if (err == 0)
 329                 err = device_probe_and_attach(sc->sc_bus.bdev);
 330
 331         if (err) {
 332                 device_printf(self, "USB init failed\n");
 333                 ohci_pci_detach(self);
 334                 return EIO;
 335         }
 336         return 0;
 337 }
 338
 339 static int
 340 ohci_pci_detach(device_t self)
 341 {
 342         ohci_softc_t *sc = device_get_softc(self);
 343
 344         if (sc->sc_flags & OHCI_SCFLG_DONEINIT) {
 345                 ohci_detach(sc, 0);
 346                 sc->sc_flags &= ~OHCI_SCFLG_DONEINIT;
 347         }
 348
 349         if (sc->irq_res && sc->ih) {
 350                 int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
 351
 352                 if (err)
 353                         /* XXX or should we panic? */
 354                         device_printf(self, "Could not tear down irq, %d\n",
 355                             err);
 356                 sc->ih = NULL;
 357         }
 358         if (sc->sc_bus.bdev) {
 359                 device_delete_child(self, sc->sc_bus.bdev);
 360                 sc->sc_bus.bdev = NULL;
 361         }
 362         if (sc->irq_res) {
 363                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
 364                 sc->irq_res = NULL;
 365         }
 366         if (sc->io_res) {
 367                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM, sc->io_res);
 368                 sc->io_res = NULL;
 369                 sc->iot = 0;
 370                 sc->ioh = 0;
 371         }
 372         return 0;
 373 }
 374
 375 static device_method_t ohci_methods[] = {
 376         /* Device interface */
 377         DEVMETHOD(device_probe, ohci_pci_probe),
 378         DEVMETHOD(device_attach, ohci_pci_attach),
 379         DEVMETHOD(device_detach, ohci_pci_detach),
 380         DEVMETHOD(device_suspend, ohci_pci_suspend),
 381         DEVMETHOD(device_resume, ohci_pci_resume),
 382         DEVMETHOD(device_shutdown, bus_generic_shutdown),
 383
 384         /* Bus interface */
 385         DEVMETHOD(bus_print_child, bus_generic_print_child),
 386
 387         DEVMETHOD_END
 388 };
 389
 390 static driver_t ohci_driver = {
 391         "ohci",
 392         ohci_methods,
 393         sizeof(ohci_softc_t),
 394 };
 395
 396 static devclass_t ohci_devclass;
 397
 398 DRIVER_MODULE(ohci, pci, ohci_driver, ohci_devclass, NULL, NULL);
 399 DRIVER_MODULE(ohci, cardbus, ohci_driver, ohci_devclass, NULL, NULL);