sys/dev/raid/dpt/dpt_eisa.c

   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  *      $FreeBSD: src/sys/dev/dpt/dpt_eisa.c,v 1.12.2.1 2000/08/07 18:48:14 peter Exp $
  27  *      $DragonFly: src/sys/dev/raid/dpt/dpt_eisa.c,v 1.9 2007/04/12 18:35:08 swildner Exp $
  28  */
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/kernel.h>
  33 #include <sys/module.h>
  34 #include <sys/bus.h>
  35 #include <sys/rman.h>
  36 #include <sys/thread2.h>
  37
  38 #include <bus/eisa/eisaconf.h>
  39
  40 #include <bus/cam/scsi/scsi_all.h>
  41
  42 #include "dpt.h"
  43
  44 #define DPT_EISA_IOSIZE                 0x100
  45 #define DPT_EISA_SLOT_OFFSET            0x0c00
  46 #define DPT_EISA_EATA_REG_OFFSET        0x0088
  47
  48 #define DPT_EISA_DPT2402        0x12142402      /* DPT PM2012A/9X       */
  49 #define DPT_EISA_DPTA401        0x1214A401      /* DPT PM2012B/9X       */
  50 #define DPT_EISA_DPTA402        0x1214A402      /* DPT PM2012B2/9X      */
  51 #define DPT_EISA_DPTA410        0x1214A410      /* DPT PM2x22A/9X       */
  52 #define DPT_EISA_DPTA411        0x1214A411      /* DPT Spectre          */
  53 #define DPT_EISA_DPTA412        0x1214A412      /* DPT PM2021A/9X       */
  54 #define DPT_EISA_DPTA420        0x1214A420      /* DPT Smart Cache IV (PM2042) */
  55 #define DPT_EISA_DPTA501        0x1214A501      /* DPT PM2012B1/9X"     */
  56 #define DPT_EISA_DPTA502        0x1214A502      /* DPT PM2012Bx/9X      */
  57 #define DPT_EISA_DPTA701        0x1214A701      /* DPT PM2011B1/9X      */
  58 #define DPT_EISA_DPTBC01        0x1214BC01      /* DPT PM3011/7X ESDI   */
  59 #define DPT_EISA_DPT8200        0x12148200      /* NEC EATA SCSI        */
  60 #define DPT_EISA_DPT2408        0x12142408      /* ATT EATA SCSI        */
  61
  62 /* Function Prototypes */
  63
  64 static const char *     dpt_eisa_match  (eisa_id_t);
  65 static int              dpt_eisa_probe  (device_t);
  66 static int              dpt_eisa_attach (device_t);
  67
  68
  69 static int
  70 dpt_eisa_probe (device_t dev)
  71 {
  72         const char *    desc;
  73         u_int32_t       io_base;
  74         dpt_conf_t *    conf;
  75
  76         desc = dpt_eisa_match(eisa_get_id(dev));
  77         if (!desc)
  78                 return (ENXIO);
  79         device_set_desc(dev, desc);
  80
  81         io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + DPT_EISA_SLOT_OFFSET;
  82
  83         conf = dpt_pio_get_conf(io_base + DPT_EISA_EATA_REG_OFFSET);
  84         if (!conf) {
  85                 kprintf("dpt: dpt_pio_get_conf() failed.\n");
  86                 return (ENXIO);
  87         }
  88
  89         eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE);
  90         eisa_add_intr(dev, conf->IRQ,
  91                       (conf->IRQ_TR ? EISA_TRIGGER_LEVEL : EISA_TRIGGER_EDGE));
  92
  93         return 0;
  94 }
  95
  96 static int
  97 dpt_eisa_attach (device_t dev)
  98 {
  99         dpt_softc_t * dpt;
 100         struct resource *io = 0;
 101         struct resource *irq = 0;
 102         int             rid;
 103         void *          ih;
 104         int             error = 0;
 105
 106         rid = 0;
 107         io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
 108         if (!io) {
 109                 device_printf(dev, "No I/O space?!\n");
 110                 error = ENOMEM;
 111                 goto bad;
 112         }
 113
 114         rid = 0;
 115         irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
 116         if (!irq) {
 117                 device_printf(dev, "No irq?!\n");
 118                 error = ENOMEM;
 119                 goto bad;
 120         }
 121
 122         dpt = dpt_alloc(dev, rman_get_bustag(io),
 123                         rman_get_bushandle(io) + DPT_EISA_EATA_REG_OFFSET);
 124         if (dpt == NULL) {
 125                 error = ENOMEM;
 126                 goto bad;
 127         }
 128
 129         /* Allocate a dmatag representing the capabilities of this attachment */
 130         /* XXX Should be a child of the EISA bus dma tag */
 131         if (bus_dma_tag_create( /* parent    */ NULL,
 132                                 /* alignemnt */ 1,
 133                                 /* boundary  */ 0,
 134                                 /* lowaddr   */ BUS_SPACE_MAXADDR_32BIT,
 135                                 /* highaddr  */ BUS_SPACE_MAXADDR,
 136                                 /* filter    */ NULL,
 137                                 /* filterarg */ NULL,
 138                                 /* maxsize   */ BUS_SPACE_MAXSIZE_32BIT,
 139                                 /* nsegments */ BUS_SPACE_UNRESTRICTED,
 140                                 /* maxsegsz  */ BUS_SPACE_MAXSIZE_32BIT,
 141                                 /* flags     */0,
 142                                 &dpt->parent_dmat) != 0) {
 143                 dpt_free(dpt);
 144                 error = ENXIO;
 145                 goto bad;
 146         }
 147
 148         crit_enter();
 149
 150         if (dpt_init(dpt) != 0) {
 151                 dpt_free(dpt);
 152                 error = ENXIO;
 153                 goto bad;
 154         }
 155
 156         /* Register with the XPT */
 157         dpt_attach(dpt);
 158
 159         crit_exit();
 160
 161         error = bus_setup_intr(dev, irq, 0, dpt_intr, dpt, &ih, NULL);
 162         if (error) {
 163                 device_printf(dev, "Unable to register interrupt handler\n");
 164                 error = ENXIO;
 165                 goto bad;
 166         }
 167
 168         return (error);
 169
 170  bad:
 171         if (io)
 172                 bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
 173         if (irq)
 174                 bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
 175
 176         return (error);
 177 }
 178
 179 static const char *
 180 dpt_eisa_match(eisa_id_t type)
 181 {
 182         switch (type) {
 183                 case DPT_EISA_DPT2402:
 184                 case DPT_EISA_DPTA401:
 185                 case DPT_EISA_DPTA402:
 186                 case DPT_EISA_DPTA410:
 187                 case DPT_EISA_DPTA411:
 188                 case DPT_EISA_DPTA412:
 189                 case DPT_EISA_DPTA420:
 190                 case DPT_EISA_DPTA501:
 191                 case DPT_EISA_DPTA502:
 192                 case DPT_EISA_DPTA701:
 193                 case DPT_EISA_DPTBC01:
 194                 case DPT_EISA_DPT8200:
 195                 case DPT_EISA_DPT2408:
 196                         return ("DPT SCSI Host Bus Adapter");
 197                         break;
 198                 default:
 199                         break;
 200         }
 201
 202         return (NULL);
 203 }
 204
 205 static device_method_t dpt_eisa_methods[] = {
 206         /* Device interface */
 207         DEVMETHOD(device_probe,         dpt_eisa_probe),
 208         DEVMETHOD(device_attach,        dpt_eisa_attach),
 209
 210         { 0, 0 }
 211 };
 212
 213 static driver_t dpt_eisa_driver = {
 214         "dpt",
 215         dpt_eisa_methods,
 216         sizeof(dpt_softc_t),
 217 };
 218
 219 static devclass_t dpt_devclass;
 220
 221 DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0);