dpt_eisa.c

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    1 /*-
    2  * Copyright (c) 1997, 2000 Matthew N. Dodd <winter@jurai.net>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/9.0/sys/dev/dpt/dpt_eisa.c 170872 2007-06-17 05:55:54Z scottl $");
   30 
   31 #include "opt_eisa.h"
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/kernel.h>
   36 #include <sys/module.h>
   37 #include <sys/lock.h>
   38 #include <sys/mutex.h>
   39 #include <sys/bus.h>
   40 
   41 #include <machine/bus.h>
   42 #include <machine/resource.h>
   43 #include <sys/rman.h>
   44 
   45 #include <dev/eisa/eisaconf.h>
   46 
   47 #include <cam/scsi/scsi_all.h>
   48 
   49 #include <dev/dpt/dpt.h>
   50 
   51 #define DPT_EISA_IOSIZE                 0x9
   52 #define DPT_EISA_SLOT_OFFSET            0x0c00
   53 #define DPT_EISA_EATA_REG_OFFSET        0x0088
   54 
   55 #define DPT_EISA_DPT2402        0x12142402      /* DPT PM2012A/9X       */
   56 #define DPT_EISA_DPTA401        0x1214A401      /* DPT PM2012B/9X       */
   57 #define DPT_EISA_DPTA402        0x1214A402      /* DPT PM2012B2/9X      */
   58 #define DPT_EISA_DPTA410        0x1214A410      /* DPT PM2x22A/9X       */
   59 #define DPT_EISA_DPTA411        0x1214A411      /* DPT Spectre          */
   60 #define DPT_EISA_DPTA412        0x1214A412      /* DPT PM2021A/9X       */
   61 #define DPT_EISA_DPTA420        0x1214A420      /* DPT Smart Cache IV (PM2042) */
   62 #define DPT_EISA_DPTA501        0x1214A501      /* DPT PM2012B1/9X"     */
   63 #define DPT_EISA_DPTA502        0x1214A502      /* DPT PM2012Bx/9X      */
   64 #define DPT_EISA_DPTA701        0x1214A701      /* DPT PM2011B1/9X      */
   65 #define DPT_EISA_DPTBC01        0x1214BC01      /* DPT PM3011/7X ESDI   */ 
   66 #define DPT_EISA_DPT8200        0x12148200      /* NEC EATA SCSI        */
   67 #define DPT_EISA_DPT2408        0x12142408      /* ATT EATA SCSI        */
   68 
   69 /* Function Prototypes */
   70 
   71 static const char *     dpt_eisa_match  (eisa_id_t);
   72 static int              dpt_eisa_probe  (device_t);
   73 static int              dpt_eisa_attach (device_t);
   74 
   75 static int
   76 dpt_eisa_probe (device_t dev)
   77 {
   78         const char *    desc;
   79         u_int32_t       io_base;
   80         dpt_conf_t *    conf;
   81 
   82         desc = dpt_eisa_match(eisa_get_id(dev));
   83         if (!desc)
   84                 return (ENXIO);
   85         device_set_desc(dev, desc);
   86 
   87         io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE) +
   88                 DPT_EISA_SLOT_OFFSET +
   89                 DPT_EISA_EATA_REG_OFFSET;
   90 
   91         conf = dpt_pio_get_conf(io_base);
   92         if (!conf) {
   93                 printf("dpt: dpt_pio_get_conf() failed.\n");
   94                 return (ENXIO);
   95         }
   96 
   97         eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE);
   98         eisa_add_intr(dev, conf->IRQ,
   99                       (conf->IRQ_TR ? EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE));
  100 
  101         return 0;
  102 }
  103 
  104 static int
  105 dpt_eisa_attach (device_t dev)
  106 {
  107         dpt_softc_t *   dpt;
  108         int             s;
  109         int             error = 0;
  110 
  111         dpt = device_get_softc(dev);
  112         dpt->dev = dev;
  113 
  114         dpt->io_rid = 0;
  115         dpt->io_type = SYS_RES_IOPORT;
  116         dpt->irq_rid = 0;
  117 
  118         error = dpt_alloc_resources(dev);
  119         if (error) {
  120                 goto bad;
  121         }
  122 
  123         dpt_alloc(dev);
  124 
  125         /* Allocate a dmatag representing the capabilities of this attachment */
  126         /* XXX Should be a child of the EISA bus dma tag */
  127         if (bus_dma_tag_create( /* parent    */ NULL,
  128                                 /* alignemnt */ 1,
  129                                 /* boundary  */ 0,
  130                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
  131                                 /* highaddr  */ BUS_SPACE_MAXADDR,
  132                                 /* filter    */ NULL,
  133                                 /* filterarg */ NULL,
  134                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
  135                                 /* nsegments */ ~0,
  136                                 /* maxsegsz  */ BUS_SPACE_MAXSIZE_32BIT,
  137                                 /* flags     */ 0,
  138                                 /* lockfunc  */ busdma_lock_mutex,
  139                                 /* lockarg   */ &Giant,
  140                                 &dpt->parent_dmat) != 0) {
  141                 error = ENXIO;
  142                 goto bad;
  143         }
  144 
  145         s = splcam();
  146 
  147         if (dpt_init(dpt) != 0) {
  148                 splx(s);
  149                 error = ENXIO;
  150                 goto bad;
  151         }
  152 
  153         /* Register with the XPT */
  154         dpt_attach(dpt);
  155 
  156         splx(s);
  157 
  158         if (bus_setup_intr(dev, dpt->irq_res, INTR_TYPE_CAM | INTR_ENTROPY,
  159                            NULL, dpt_intr, dpt, &dpt->ih)) {
  160                 device_printf(dev, "Unable to register interrupt handler\n");
  161                 error = ENXIO;
  162                 goto bad;
  163         }
  164 
  165         return (error);
  166 
  167  bad:
  168         dpt_release_resources(dev);
  169 
  170         dpt_free(dpt);
  171 
  172         return (error);
  173 }
  174 
  175 static const char       *
  176 dpt_eisa_match(type)
  177         eisa_id_t       type;
  178 {
  179         switch (type) {
  180                 case DPT_EISA_DPT2402:
  181                 case DPT_EISA_DPTA401:
  182                 case DPT_EISA_DPTA402:
  183                 case DPT_EISA_DPTA410:
  184                 case DPT_EISA_DPTA411:
  185                 case DPT_EISA_DPTA412:
  186                 case DPT_EISA_DPTA420:
  187                 case DPT_EISA_DPTA501:
  188                 case DPT_EISA_DPTA502:
  189                 case DPT_EISA_DPTA701:
  190                 case DPT_EISA_DPTBC01:
  191                 case DPT_EISA_DPT8200:
  192                 case DPT_EISA_DPT2408:
  193                         return ("DPT SCSI Host Bus Adapter");
  194                         break;
  195                 default:
  196                         break;
  197         }
  198         
  199         return (NULL);
  200 }
  201 
  202 static device_method_t dpt_eisa_methods[] = {
  203         /* Device interface */
  204         DEVMETHOD(device_probe,         dpt_eisa_probe),
  205         DEVMETHOD(device_attach,        dpt_eisa_attach),
  206         DEVMETHOD(device_detach,        dpt_detach),
  207 
  208         { 0, 0 }
  209 };
  210 
  211 static driver_t dpt_eisa_driver = {
  212         "dpt",
  213         dpt_eisa_methods,
  214         sizeof(dpt_softc_t),
  215 };
  216 
  217 DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0);
  218 MODULE_DEPEND(dpt, eisa, 1, 1, 1);
  219 MODULE_DEPEND(dpt, cam, 1, 1, 1);

Cache object: 703c74b80cb928e0b125bc3357b336e2

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FreeBSD/Linux Kernel Cross Reference sys/dev/dpt/dpt_eisa.c

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sys/dev/dpt/dpt_eisa.c