FreeBSD/Linux Kernel Cross Reference
sys/dev/puc/puc_pci.c

     /*      $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $     */
     
     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-3-Clause
      *
      * Copyright (c) 2002 JF Hay.  All rights reserved.
      * Copyright (c) 2000 M. Warner Losh <imp@FreeBSD.org>
      *
      * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    /*-
     * Copyright (c) 1996, 1998, 1999
     *      Christopher G. Demetriou.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Christopher G. Demetriou
     *      for the NetBSD Project.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/bus.h>
    #include <sys/conf.h>
    #include <sys/malloc.h>
    #include <sys/sysctl.h>
    
    #include <machine/bus.h>
    #include <machine/resource.h>
    #include <sys/rman.h>
    
    #include <dev/pci/pcireg.h>
    #include <dev/pci/pcivar.h>
    
    #include <dev/puc/puc_cfg.h>
    #include <dev/puc/puc_bfe.h>
    #include <dev/puc/pucdata.c>
    
    static int puc_msi_disable;
    SYSCTL_INT(_hw_puc, OID_AUTO, msi_disable, CTLFLAG_RDTUN,
        &puc_msi_disable, 0, "Disable use of MSI interrupts by puc(9)");
    
    static const struct puc_cfg *
    puc_pci_match(device_t dev, const struct puc_cfg *desc)
    {
            uint16_t vendor, device;
            uint16_t subvendor, subdevice;
    
            vendor = pci_get_vendor(dev);
            device = pci_get_device(dev);
            subvendor = pci_get_subvendor(dev);
            subdevice = pci_get_subdevice(dev);
    
           while (desc->vendor != 0xffff) {
                   if (desc->vendor == vendor && desc->device == device) {
                           /* exact match */
                           if (desc->subvendor == subvendor &&
                               desc->subdevice == subdevice)
                                   return (desc);
                           /* wildcard match */
                           if (desc->subvendor == 0xffff)
                                   return (desc);
                   }
                   desc++;
           }
   
           /* no match */
           return (NULL);
   }
   
   static int
   puc_pci_probe(device_t dev)
   {
           const struct puc_cfg *desc;
   
           if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
                   return (ENXIO);
   
           desc = puc_pci_match(dev, puc_pci_devices);
           if (desc == NULL)
                   return (ENXIO);
           return (puc_bfe_probe(dev, desc));
   }
   
   static int
   puc_pci_attach(device_t dev)
   {
           struct puc_softc *sc;
           int error, count;
   
           sc = device_get_softc(dev);
   
           if (!puc_msi_disable) {
                   count = 1;
   
                   if (pci_alloc_msi(dev, &count) == 0) {
                           sc->sc_msi = 1;
                           sc->sc_irid = 1;
                   }
           }
   
           error = puc_bfe_attach(dev);
   
           if (error != 0 && sc->sc_msi)
                   pci_release_msi(dev);
   
           return (error);
   }
   
   static int
   puc_pci_detach(device_t dev)
   {
           struct puc_softc *sc;
           int error;
   
           sc = device_get_softc(dev);
   
           error = puc_bfe_detach(dev);
   
           if (error != 0)
                   return (error);
   
           if (sc->sc_msi)
                   error = pci_release_msi(dev);
   
           return (error);
   }
   
   static device_method_t puc_pci_methods[] = {
       /* Device interface */
       DEVMETHOD(device_probe,             puc_pci_probe),
       DEVMETHOD(device_attach,            puc_pci_attach),
       DEVMETHOD(device_detach,            puc_pci_detach),
   
       DEVMETHOD(bus_alloc_resource,       puc_bus_alloc_resource),
       DEVMETHOD(bus_release_resource,     puc_bus_release_resource),
       DEVMETHOD(bus_get_resource,         puc_bus_get_resource),
       DEVMETHOD(bus_read_ivar,            puc_bus_read_ivar),
       DEVMETHOD(bus_setup_intr,           puc_bus_setup_intr),
       DEVMETHOD(bus_teardown_intr,        puc_bus_teardown_intr),
       DEVMETHOD(bus_print_child,          puc_bus_print_child),
       DEVMETHOD(bus_child_pnpinfo,        puc_bus_child_pnpinfo),
       DEVMETHOD(bus_child_location,       puc_bus_child_location),
   
       DEVMETHOD_END
   };
   
   static driver_t puc_pci_driver = {
           puc_driver_name,
           puc_pci_methods,
           sizeof(struct puc_softc),
   };
   
   DRIVER_MODULE(puc, pci, puc_pci_driver, 0, 0);
   MODULE_PNP_INFO("U16:vendor;U16:device;U16:#;U16:#;D:#", pci, puc,
       puc_pci_devices, nitems(puc_pci_devices) - 1);

Cache object: 45cda78c64a2fd8ffb8770362f81eb55