FreeBSD/Linux Kernel Cross Reference
sys/dev/pst/pst-pci.c

     /*-
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * Copyright (c) 2001,2002,2003 Søren Schmidt <sos@FreeBSD.org>
      * 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,
     *    without modification, immediately at the beginning of the file.
     * 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. 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/bio.h>
    #include <sys/malloc.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    #include <vm/vm.h>
    #include <vm/pmap.h>
    #include <machine/stdarg.h>
    #include <machine/resource.h>
    #include <machine/bus.h>
    #include <sys/rman.h>
    #include <dev/pci/pcivar.h>
    #include <dev/pci/pcireg.h>
    
    #include "dev/pst/pst-iop.h"
    
    static int
    iop_pci_probe(device_t dev)
    {
        /* tested with actual hardware kindly donated by Promise */
        if (pci_get_devid(dev) == 0x19628086 && pci_get_subvendor(dev) == 0x105a) {
            device_set_desc(dev, "Promise SuperTrak SX6000 ATA RAID controller");
            return BUS_PROBE_DEFAULT;
        } 
    
        /* support the older SuperTrak 100 as well */
        if (pci_get_devid(dev) == 0x19608086 && pci_get_subvendor(dev) == 0x105a) {
            device_set_desc(dev, "Promise SuperTrak 100 ATA RAID controller");
            return BUS_PROBE_DEFAULT;
        } 
    
        return ENXIO;
    }
    
    static int
    iop_pci_attach(device_t dev)
    {
        struct iop_softc *sc = device_get_softc(dev);
        int rid;
    
        /* get resources */
        rid = PCIR_BAR(0);
        sc->r_mem = 
            bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
    
        if (!sc->r_mem)
            return ENXIO;
    
        rid = 0x00;
        sc->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
                                           RF_SHAREABLE | RF_ACTIVE);
    
        /* now setup the infrastructure to talk to the device */
        pci_enable_busmaster(dev);
    
        sc->ibase = rman_get_virtual(sc->r_mem);
        sc->reg = (struct i2o_registers *)sc->ibase;
        sc->dev = dev;
        mtx_init(&sc->mtx, "pst lock", NULL, MTX_DEF);
    
        if (!iop_init(sc))
            return 0;
       return bus_generic_attach(dev);
   }
   
   static int
   iop_pci_detach(device_t dev)
   {
       struct iop_softc *sc = device_get_softc(dev);
       int error;
   
       error = bus_generic_detach(dev);
       if (error)
               return (error);
       bus_teardown_intr(dev, sc->r_irq, sc->handle);
       bus_release_resource(dev, SYS_RES_IRQ, 0x00, sc->r_irq);
       bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0), sc->r_mem);
       mtx_destroy(&sc->mtx);
       return (0);
   }
   
   static device_method_t pst_pci_methods[] = {
       DEVMETHOD(device_probe,             iop_pci_probe),
       DEVMETHOD(device_attach,            iop_pci_attach),
       DEVMETHOD(device_detach,            iop_pci_detach),
       { 0, 0 }
   };
   
   static driver_t pst_pci_driver = {
       "pstpci",
       pst_pci_methods,
       sizeof(struct iop_softc),
   };
   
   DRIVER_MODULE(pstpci, pci, pst_pci_driver, 0, 0);

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