The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/stg/tmc18c30_pci.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  *      Copyright (c) 2003 Bob Bishop
    5  *      All rights reserved.
    6  * [Ported for FreeBSD]
    7  *  Copyright (c) 2000
    8  *      Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
    9  *      All rights reserved.
   10  * [NetBSD for NEC PC-98 series]
   11  *  Copyright (c) 1996, 1997, 1998
   12  *      NetBSD/pc98 porting staff. All rights reserved.
   13  *  Copyright (c) 1996, 1997, 1998
   14  *      Naofumi HONDA. All rights reserved.
   15  *  Copyright (c) 1996, 1997, 1998
   16  *      Kouichi Matsuda. All rights reserved.
   17  * 
   18  *  Redistribution and use in source and binary forms, with or without
   19  *  modification, are permitted provided that the following conditions
   20  *  are met:
   21  *  1. Redistributions of source code must retain the above copyright
   22  *     notice, this list of conditions and the following disclaimer.
   23  *  2. Redistributions in binary form must reproduce the above copyright
   24  *     notice, this list of conditions and the following disclaimer in the
   25  *     documentation and/or other materials provided with the distribution.
   26  *  3. The name of the author may not be used to endorse or promote products
   27  *     derived from this software without specific prior written permission.
   28  * 
   29  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   30  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   31  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   32  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   38  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   39  * POSSIBILITY OF SUCH DAMAGE.
   40  */
   41 
   42 #include <sys/cdefs.h>
   43 __FBSDID("$FreeBSD: releng/12.0/sys/dev/stg/tmc18c30_pci.c 326255 2017-11-27 14:52:40Z pfg $");
   44 
   45 #include <sys/param.h>
   46 #include <sys/systm.h>
   47 #include <sys/kernel.h>
   48 #include <sys/module.h>
   49 #include <sys/bus.h>
   50 #include <sys/malloc.h>
   51 #include <sys/errno.h>
   52 
   53 #include <machine/bus.h>
   54 #include <machine/resource.h>
   55 #include <sys/rman.h>
   56 
   57 #include <dev/pci/pcireg.h>
   58 #include <dev/pci/pcivar.h>
   59 
   60 #include <cam/scsi/scsi_low.h>
   61 
   62 #include <dev/stg/tmc18c30reg.h>
   63 #include <dev/stg/tmc18c30var.h>
   64 #include <dev/stg/tmc18c30.h>
   65 
   66 static struct _pcsid
   67 {
   68         u_int32_t       type;
   69         const char      *desc;
   70 } pci_ids[] = {
   71         { 0x00001036,   "Adaptec AHA-2920/A,Future Domain TMC-18XX/3260"        },
   72         { 0x00000000,   NULL                                                    }
   73 };
   74 
   75 static int
   76 stg_pci_probe(device_t dev)
   77 {
   78         u_int32_t type = pci_get_devid(dev);
   79         struct _pcsid *stg = pci_ids;
   80 
   81         while (stg->type && stg->type != type)
   82                 ++stg;
   83         if (stg->desc) {
   84                 device_set_desc(dev, stg->desc);
   85                 return (BUS_PROBE_DEFAULT);
   86         }
   87         return (ENXIO);
   88 }
   89 
   90 static int
   91 stg_pci_attach(device_t dev)
   92 {
   93         struct stg_softc        *sc = device_get_softc(dev);
   94         int                     error;
   95 
   96         sc->port_rid = PCIR_BAR(0);
   97         sc->irq_rid = 0;
   98         error = stg_alloc_resource(dev);
   99         if (error) {
  100                 return(error);
  101         }
  102 
  103         /* XXXX remove INTR_ENTROPY below for MFC */
  104         error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM | INTR_ENTROPY |
  105             INTR_MPSAFE, NULL, stg_intr, sc, &sc->stg_intrhand);
  106         if (error) {
  107                 stg_release_resource(dev);
  108                 return(error);
  109         }
  110 
  111         if (stg_attach(dev) == 0) {
  112                 stg_release_resource(dev);
  113                 return(ENXIO);
  114         }
  115 
  116         return(0);
  117 }
  118 
  119 static device_method_t stg_pci_methods[] = {
  120         /* Device interface */
  121         DEVMETHOD(device_probe,         stg_pci_probe),
  122         DEVMETHOD(device_attach,        stg_pci_attach),
  123         DEVMETHOD(device_detach,        stg_detach),
  124 
  125         { 0, 0 }
  126 };
  127 
  128 static driver_t stg_pci_driver = {
  129         "stg",
  130         stg_pci_methods,
  131         sizeof(struct stg_softc),
  132 };
  133 
  134 DRIVER_MODULE(stg, pci, stg_pci_driver, stg_devclass, 0, 0);
  135 MODULE_DEPEND(stg, scsi_low, 1, 1, 1);
  136 MODULE_DEPEND(stg, pci, 1, 1, 1);

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