ohci_pci.c

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    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 
   38 #include <sys/cdefs.h>
   39 __FBSDID("$FreeBSD: releng/7.3/sys/dev/usb/ohci_pci.c 170969 2007-06-21 14:42:34Z imp $");
   40 
   41 /*
   42  * USB Open Host Controller driver.
   43  *
   44  * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
   45  */
   46 
   47 /* The low level controller code for OHCI has been split into
   48  * PCI probes and OHCI specific code. This was done to facilitate the
   49  * sharing of code between *BSD's
   50  */
   51 
   52 #include "opt_bus.h"
   53 
   54 #include <sys/param.h>
   55 #include <sys/systm.h>
   56 #include <sys/kernel.h>
   57 #include <sys/module.h>
   58 #include <sys/lock.h>
   59 #include <sys/mutex.h>
   60 #include <sys/bus.h>
   61 #include <sys/queue.h>
   62 #include <machine/bus.h>
   63 #include <sys/rman.h>
   64 #include <machine/resource.h>
   65 
   66 #include <dev/pci/pcivar.h>
   67 #include <dev/pci/pcireg.h>
   68 
   69 #include <dev/usb/usb.h>
   70 #include <dev/usb/usbdi.h>
   71 #include <dev/usb/usbdivar.h>
   72 #include <dev/usb/usb_mem.h>
   73 
   74 #include <dev/usb/ohcireg.h>
   75 #include <dev/usb/ohcivar.h>
   76 
   77 #define PCI_OHCI_VENDORID_ACERLABS      0x10b9
   78 #define PCI_OHCI_VENDORID_AMD           0x1022
   79 #define PCI_OHCI_VENDORID_APPLE         0x106b
   80 #define PCI_OHCI_VENDORID_ATI           0x1002
   81 #define PCI_OHCI_VENDORID_CMDTECH       0x1095
   82 #define PCI_OHCI_VENDORID_NEC           0x1033
   83 #define PCI_OHCI_VENDORID_NVIDIA        0x12D2
   84 #define PCI_OHCI_VENDORID_NVIDIA2       0x10DE
   85 #define PCI_OHCI_VENDORID_OPTI          0x1045
   86 #define PCI_OHCI_VENDORID_SIS           0x1039
   87 #define PCI_OHCI_VENDORID_SUN           0x108e
   88 
   89 #define PCI_OHCI_DEVICEID_ALADDIN_V     0x523710b9
   90 static const char *ohci_device_aladdin_v = "AcerLabs M5237 (Aladdin-V) USB controller";
   91 
   92 #define PCI_OHCI_DEVICEID_AMD756        0x740c1022
   93 static const char *ohci_device_amd756 = "AMD-756 USB Controller";
   94 
   95 #define PCI_OHCI_DEVICEID_AMD766        0x74141022
   96 static const char *ohci_device_amd766 = "AMD-766 USB Controller";
   97 
   98 #define PCI_OHCI_DEVICEID_SB400_1       0x43741002
   99 #define PCI_OHCI_DEVICEID_SB400_2       0x43751002
  100 static const char *ohci_device_sb400 = "ATI SB400 USB Controller";
  101 
  102 #define PCI_OHCI_DEVICEID_FIRELINK      0xc8611045
  103 static const char *ohci_device_firelink = "OPTi 82C861 (FireLink) USB controller";
  104 
  105 #define PCI_OHCI_DEVICEID_NEC           0x00351033
  106 static const char *ohci_device_nec = "NEC uPD 9210 USB controller";
  107 
  108 #define PCI_OHCI_DEVICEID_NFORCE3       0x00d710de
  109 static const char *ohci_device_nforce3 = "nVidia nForce3 USB Controller";
  110 
  111 #define PCI_OHCI_DEVICEID_USB0670       0x06701095
  112 static const char *ohci_device_usb0670 = "CMD Tech 670 (USB0670) USB controller";
  113 
  114 #define PCI_OHCI_DEVICEID_USB0673       0x06731095
  115 static const char *ohci_device_usb0673 = "CMD Tech 673 (USB0673) USB controller";
  116 
  117 #define PCI_OHCI_DEVICEID_SIS5571       0x70011039
  118 static const char *ohci_device_sis5571 = "SiS 5571 USB controller";
  119 
  120 #define PCI_OHCI_DEVICEID_KEYLARGO      0x0019106b
  121 static const char *ohci_device_keylargo = "Apple KeyLargo USB controller";
  122 
  123 #define PCI_OHCI_DEVICEID_PCIO2USB      0x1103108e
  124 static const char *ohci_device_pcio2usb = "Sun PCIO-2 USB controller";
  125 
  126 static const char *ohci_device_generic = "OHCI (generic) USB controller";
  127 
  128 #define PCI_OHCI_BASE_REG       0x10
  129 
  130 
  131 static device_attach_t ohci_pci_attach;
  132 static device_detach_t ohci_pci_detach;
  133 static device_suspend_t ohci_pci_suspend;
  134 static device_resume_t ohci_pci_resume;
  135 
  136 static int
  137 ohci_pci_suspend(device_t self)
  138 {
  139         ohci_softc_t *sc = device_get_softc(self);
  140         int err;
  141 
  142         err = bus_generic_suspend(self);
  143         if (err)
  144                 return err;
  145         ohci_power(PWR_SUSPEND, sc);
  146 
  147         return 0;
  148 }
  149 
  150 static int
  151 ohci_pci_resume(device_t self)
  152 {
  153         ohci_softc_t *sc = device_get_softc(self);
  154 
  155         ohci_power(PWR_RESUME, sc);
  156         bus_generic_resume(self);
  157 
  158         return 0;
  159 }
  160 
  161 static const char *
  162 ohci_pci_match(device_t self)
  163 {
  164         u_int32_t device_id = pci_get_devid(self);
  165 
  166         switch (device_id) {
  167         case PCI_OHCI_DEVICEID_ALADDIN_V:
  168                 return (ohci_device_aladdin_v);
  169         case PCI_OHCI_DEVICEID_AMD756:
  170                 return (ohci_device_amd756);
  171         case PCI_OHCI_DEVICEID_AMD766:
  172                 return (ohci_device_amd766);
  173         case PCI_OHCI_DEVICEID_SB400_1:
  174         case PCI_OHCI_DEVICEID_SB400_2:
  175                 return (ohci_device_sb400);
  176         case PCI_OHCI_DEVICEID_USB0670:
  177                 return (ohci_device_usb0670);
  178         case PCI_OHCI_DEVICEID_USB0673:
  179                 return (ohci_device_usb0673);
  180         case PCI_OHCI_DEVICEID_FIRELINK:
  181                 return (ohci_device_firelink);
  182         case PCI_OHCI_DEVICEID_NEC:
  183                 return (ohci_device_nec);
  184         case PCI_OHCI_DEVICEID_NFORCE3:
  185                 return (ohci_device_nforce3);
  186         case PCI_OHCI_DEVICEID_SIS5571:
  187                 return (ohci_device_sis5571);
  188         case PCI_OHCI_DEVICEID_KEYLARGO:
  189                 return (ohci_device_keylargo);
  190         case PCI_OHCI_DEVICEID_PCIO2USB:
  191                 return (ohci_device_pcio2usb);
  192         default:
  193                 if (pci_get_class(self) == PCIC_SERIALBUS
  194                     && pci_get_subclass(self) == PCIS_SERIALBUS_USB
  195                     && pci_get_progif(self) == PCI_INTERFACE_OHCI) {
  196                         return (ohci_device_generic);
  197                 }
  198         }
  199 
  200         return NULL;            /* dunno */
  201 }
  202 
  203 static int
  204 ohci_pci_probe(device_t self)
  205 {
  206         const char *desc = ohci_pci_match(self);
  207 
  208         if (desc) {
  209                 device_set_desc(self, desc);
  210                 return BUS_PROBE_DEFAULT;
  211         } else {
  212                 return ENXIO;
  213         }
  214 }
  215 
  216 static int
  217 ohci_pci_attach(device_t self)
  218 {
  219         ohci_softc_t *sc = device_get_softc(self);
  220         int err;
  221         int rid;
  222 
  223         /* XXX where does it say so in the spec? */
  224         sc->sc_bus.usbrev = USBREV_1_0;
  225 
  226         pci_enable_busmaster(self);
  227 
  228         /*
  229          * Some Sun PCIO-2 USB controllers have their intpin register
  230          * bogusly set to 0, although it should be 4. Correct that.
  231          */
  232         if (pci_get_devid(self) == PCI_OHCI_DEVICEID_PCIO2USB &&
  233             pci_get_intpin(self) == 0)
  234                 pci_set_intpin(self, 4);
  235 
  236         rid = PCI_CBMEM;
  237         sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
  238             RF_ACTIVE);
  239         if (!sc->io_res) {
  240                 device_printf(self, "Could not map memory\n");
  241                 return ENXIO;
  242         }
  243         sc->iot = rman_get_bustag(sc->io_res);
  244         sc->ioh = rman_get_bushandle(sc->io_res);
  245 
  246         rid = 0;
  247         sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
  248             RF_SHAREABLE | RF_ACTIVE);
  249         if (sc->irq_res == NULL) {
  250                 device_printf(self, "Could not allocate irq\n");
  251                 ohci_pci_detach(self);
  252                 return ENXIO;
  253         }
  254         sc->sc_bus.bdev = device_add_child(self, "usb", -1);
  255         if (!sc->sc_bus.bdev) {
  256                 device_printf(self, "Could not add USB device\n");
  257                 ohci_pci_detach(self);
  258                 return ENOMEM;
  259         }
  260         device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
  261 
  262         /* ohci_pci_match will never return NULL if ohci_pci_probe succeeded */
  263         device_set_desc(sc->sc_bus.bdev, ohci_pci_match(self));
  264         switch (pci_get_vendor(self)) {
  265         case PCI_OHCI_VENDORID_ACERLABS:
  266                 sprintf(sc->sc_vendor, "AcerLabs");
  267                 break;
  268         case PCI_OHCI_VENDORID_AMD:
  269                 sprintf(sc->sc_vendor, "AMD");
  270                 break;
  271         case PCI_OHCI_VENDORID_APPLE:
  272                 sprintf(sc->sc_vendor, "Apple");
  273                 break;
  274         case PCI_OHCI_VENDORID_ATI:
  275                 sprintf(sc->sc_vendor, "ATI");
  276                 break;
  277         case PCI_OHCI_VENDORID_CMDTECH:
  278                 sprintf(sc->sc_vendor, "CMDTECH");
  279                 break;
  280         case PCI_OHCI_VENDORID_NEC:
  281                 sprintf(sc->sc_vendor, "NEC");
  282                 break;
  283         case PCI_OHCI_VENDORID_NVIDIA:
  284         case PCI_OHCI_VENDORID_NVIDIA2:
  285                 sprintf(sc->sc_vendor, "nVidia");
  286                 break;
  287         case PCI_OHCI_VENDORID_OPTI:
  288                 sprintf(sc->sc_vendor, "OPTi");
  289                 break;
  290         case PCI_OHCI_VENDORID_SIS:
  291                 sprintf(sc->sc_vendor, "SiS");
  292                 break;
  293         default:
  294                 if (bootverbose)
  295                         device_printf(self, "(New OHCI DeviceId=0x%08x)\n",
  296                             pci_get_devid(self));
  297                 sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
  298         }
  299 
  300         err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO, NULL, ohci_intr, 
  301                              sc, &sc->ih);
  302         if (err) {
  303                 device_printf(self, "Could not setup irq, %d\n", err);
  304                 sc->ih = NULL;
  305                 ohci_pci_detach(self);
  306                 return ENXIO;
  307         }
  308 
  309         /* Allocate a parent dma tag for DMA maps */
  310         err = bus_dma_tag_create(bus_get_dma_tag(self), 1, 0,
  311             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
  312             BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
  313             NULL, NULL, &sc->sc_bus.parent_dmatag);
  314         if (err) {
  315                 device_printf(self, "Could not allocate parent DMA tag (%d)\n",
  316                     err);
  317                 ohci_pci_detach(self);
  318                 return ENXIO;
  319         }
  320         /* Allocate a dma tag for transfer buffers */
  321         err = bus_dma_tag_create(sc->sc_bus.parent_dmatag, 1, 0,
  322             BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
  323             BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
  324             busdma_lock_mutex, &Giant, &sc->sc_bus.buffer_dmatag);
  325         if (err) {
  326                 device_printf(self, "Could not allocate transfer tag (%d)\n",
  327                     err);
  328                 ohci_pci_detach(self);
  329                 return ENXIO;
  330         }
  331 
  332         err = ohci_init(sc);
  333         if (!err) {
  334                 sc->sc_flags |= OHCI_SCFLG_DONEINIT;
  335                 err = device_probe_and_attach(sc->sc_bus.bdev);
  336         }
  337 
  338         if (err) {
  339                 device_printf(self, "USB init failed\n");
  340                 ohci_pci_detach(self);
  341                 return EIO;
  342         }
  343         return 0;
  344 }
  345 
  346 static int
  347 ohci_pci_detach(device_t self)
  348 {
  349         ohci_softc_t *sc = device_get_softc(self);
  350 
  351         if (sc->sc_flags & OHCI_SCFLG_DONEINIT) {
  352                 ohci_detach(sc, 0);
  353                 sc->sc_flags &= ~OHCI_SCFLG_DONEINIT;
  354         }
  355 
  356         if (sc->sc_bus.parent_dmatag != NULL)
  357                 bus_dma_tag_destroy(sc->sc_bus.parent_dmatag);
  358         if (sc->sc_bus.buffer_dmatag != NULL)
  359                 bus_dma_tag_destroy(sc->sc_bus.buffer_dmatag);
  360 
  361         if (sc->irq_res && sc->ih) {
  362                 int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
  363 
  364                 if (err)
  365                         /* XXX or should we panic? */
  366                         device_printf(self, "Could not tear down irq, %d\n",
  367                             err);
  368                 sc->ih = NULL;
  369         }
  370         if (sc->sc_bus.bdev) {
  371                 device_delete_child(self, sc->sc_bus.bdev);
  372                 sc->sc_bus.bdev = NULL;
  373         }
  374         if (sc->irq_res) {
  375                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
  376                 sc->irq_res = NULL;
  377         }
  378         if (sc->io_res) {
  379                 bus_release_resource(self, SYS_RES_MEMORY, PCI_CBMEM,
  380                     sc->io_res);
  381                 sc->io_res = NULL;
  382                 sc->iot = 0;
  383                 sc->ioh = 0;
  384         }
  385         return 0;
  386 }
  387 
  388 static device_method_t ohci_methods[] = {
  389         /* Device interface */
  390         DEVMETHOD(device_probe, ohci_pci_probe),
  391         DEVMETHOD(device_attach, ohci_pci_attach),
  392         DEVMETHOD(device_detach, ohci_pci_detach),
  393         DEVMETHOD(device_suspend, ohci_pci_suspend),
  394         DEVMETHOD(device_resume, ohci_pci_resume),
  395         DEVMETHOD(device_shutdown, bus_generic_shutdown),
  396 
  397         /* Bus interface */
  398         DEVMETHOD(bus_print_child, bus_generic_print_child),
  399 
  400         {0, 0}
  401 };
  402 
  403 static driver_t ohci_driver = {
  404         "ohci",
  405         ohci_methods,
  406         sizeof(ohci_softc_t),
  407 };
  408 
  409 static devclass_t ohci_devclass;
  410 
  411 DRIVER_MODULE(ohci, pci, ohci_driver, ohci_devclass, 0, 0);
  412 DRIVER_MODULE(ohci, cardbus, ohci_driver, ohci_devclass, 0, 0);
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FreeBSD/Linux Kernel Cross Reference sys/dev/usb/ohci_pci.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/usb/ohci_pci.c
