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/eisa/bha_eisa.c

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    1 /*      $NetBSD: bha_eisa.c,v 1.28 2006/11/16 01:32:50 christos Exp $   */
    2 
    3 /*-
    4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Charles M. Hannum.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #include <sys/cdefs.h>
   40 __KERNEL_RCSID(0, "$NetBSD: bha_eisa.c,v 1.28 2006/11/16 01:32:50 christos Exp $");
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/device.h>
   45 
   46 #include <machine/bus.h>
   47 #include <machine/intr.h>
   48 
   49 #include <dev/scsipi/scsipi_all.h>
   50 #include <dev/scsipi/scsiconf.h>
   51 
   52 #include <dev/eisa/eisavar.h>
   53 #include <dev/eisa/eisadevs.h>
   54 
   55 #include <dev/ic/bhareg.h>
   56 #include <dev/ic/bhavar.h>
   57 
   58 #define BHA_EISA_SLOT_OFFSET    0x0c80
   59 #define BHA_EISA_IOSIZE         0x0010
   60 #define BHA_ISA_IOSIZE          0x0004
   61 
   62 #define BHA_EISA_IOCONF         0x0c
   63 
   64 static int      bha_eisa_address(bus_space_tag_t, bus_space_handle_t, int *);
   65 static int      bha_eisa_match(struct device *, struct cfdata *, void *);
   66 static void     bha_eisa_attach(struct device *, struct device *, void *);
   67 
   68 CFATTACH_DECL(bha_eisa, sizeof(struct bha_softc),
   69     bha_eisa_match, bha_eisa_attach, NULL, NULL);
   70 
   71 static int
   72 bha_eisa_address(bus_space_tag_t iot, bus_space_handle_t ioh, int *portp)
   73 {
   74         int port;
   75 
   76         switch (bus_space_read_1(iot, ioh, BHA_EISA_IOCONF) & 0x07) {
   77         case 0x00:
   78                 port = 0x330;
   79                 break;
   80         case 0x01:
   81                 port = 0x334;
   82                 break;
   83         case 0x02:
   84                 port = 0x230;
   85                 break;
   86         case 0x03:
   87                 port = 0x234;
   88                 break;
   89         case 0x04:
   90                 port = 0x130;
   91                 break;
   92         case 0x05:
   93                 port = 0x134;
   94                 break;
   95         default:
   96                 return (1);
   97         }
   98 
   99         *portp = port;
  100         return (0);
  101 }
  102 
  103 /*
  104  * Check the slots looking for a board we recognise
  105  * If we find one, note it's address (slot) and call
  106  * the actual probe routine to check it out.
  107  */
  108 static int
  109 bha_eisa_match(struct device *parent, struct cfdata *match,
  110     void *aux)
  111 {
  112         struct eisa_attach_args *ea = aux;
  113         bus_space_tag_t iot = ea->ea_iot;
  114         bus_space_handle_t ioh, ioh2;
  115         int port;
  116         int rv;
  117 
  118         /* must match one of our known ID strings */
  119         if (strcmp(ea->ea_idstring, "BUS4201") &&
  120             strcmp(ea->ea_idstring, "BUS4202"))
  121                 return (0);
  122 
  123         if (bus_space_map(iot,
  124             EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
  125             0, &ioh))
  126                 return (0);
  127 
  128         if (bha_eisa_address(iot, ioh, &port) ||
  129             bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2)) {
  130                 bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
  131                 return (0);
  132         }
  133 
  134         rv = bha_find(iot, ioh2);
  135 
  136         bus_space_unmap(iot, ioh2, BHA_ISA_IOSIZE);
  137         bus_space_unmap(iot, ioh, BHA_EISA_IOSIZE);
  138 
  139         return (rv);
  140 }
  141 
  142 /*
  143  * Attach all the sub-devices we can find
  144  */
  145 static void
  146 bha_eisa_attach(struct device *parent, struct device *self, void *aux)
  147 {
  148         struct eisa_attach_args *ea = aux;
  149         struct bha_softc *sc = device_private(self);
  150         bus_space_tag_t iot = ea->ea_iot;
  151         bus_space_handle_t ioh, ioh2;
  152         int port;
  153         struct bha_probe_data bpd;
  154         eisa_chipset_tag_t ec = ea->ea_ec;
  155         eisa_intr_handle_t ih;
  156         const char *model, *intrstr;
  157 
  158         if (!strcmp(ea->ea_idstring, "BUS4201"))
  159                 model = EISA_PRODUCT_BUS4201;
  160         else if (!strcmp(ea->ea_idstring, "BUS4202"))
  161                 model = EISA_PRODUCT_BUS4202;
  162         else
  163                 model = "unknown model!";
  164         printf(": %s\n", model);
  165 
  166         if (bus_space_map(iot,
  167             EISA_SLOT_ADDR(ea->ea_slot) + BHA_EISA_SLOT_OFFSET, BHA_EISA_IOSIZE,
  168             0, &ioh))
  169                 panic("bha_eisa_attach: could not map EISA slot");
  170 
  171         if (bha_eisa_address(iot, ioh, &port) ||
  172             bus_space_map(iot, port, BHA_ISA_IOSIZE, 0, &ioh2))
  173                 panic("bha_eisa_attach: could not map ISA address");
  174 
  175         sc->sc_iot = iot;
  176         sc->sc_ioh = ioh2;
  177         sc->sc_dmat = ea->ea_dmat;
  178         if (!bha_probe_inquiry(iot, ioh2, &bpd))
  179                 panic("bha_eisa_attach failed");
  180 
  181         sc->sc_dmaflags = 0;
  182 
  183         if (eisa_intr_map(ec, bpd.sc_irq, &ih)) {
  184                 printf("%s: couldn't map interrupt (%d)\n",
  185                     sc->sc_dev.dv_xname, bpd.sc_irq);
  186                 return;
  187         }
  188         intrstr = eisa_intr_string(ec, ih);
  189         sc->sc_ih = eisa_intr_establish(ec, ih, IST_LEVEL, IPL_BIO,
  190             bha_intr, sc);
  191         if (sc->sc_ih == NULL) {
  192                 printf("%s: couldn't establish interrupt",
  193                     sc->sc_dev.dv_xname);
  194                 if (intrstr != NULL)
  195                         printf(" at %s", intrstr);
  196                 printf("\n");
  197                 return;
  198         }
  199         printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr);
  200 
  201         bha_attach(sc);
  202 }

Cache object: 9d23b402c6a65487f65cd9308e82cddb


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