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/ahc_eisa.c

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    1 /*      $NetBSD: ahc_eisa.c,v 1.29 2004/08/23 06:03:19 thorpej Exp $    */
    2 
    3 /*
    4  * Product specific probe and attach routines for:
    5  *      274X and aic7770 motherboard SCSI controllers
    6  *
    7  * Copyright (c) 1994, 1995, 1996, 1997, 1998 Justin T. Gibbs.
    8  * All rights reserved.
    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 immediately at the beginning of the file, without modification,
   15  *    this list of conditions, and the following disclaimer.
   16  * 2. The name of the author may not be used to endorse or promote products
   17  *    derived from this software without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  * $FreeBSD: src/sys/dev/aic7xxx/ahc_eisa.c,v 1.15 2000/01/29 14:22:19 peter Exp $
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __KERNEL_RCSID(0, "$NetBSD: ahc_eisa.c,v 1.29 2004/08/23 06:03:19 thorpej Exp $");
   36 
   37 #include <sys/param.h>
   38 #include <sys/systm.h>
   39 #include <sys/kernel.h>
   40 #include <sys/device.h>
   41 #include <sys/reboot.h>
   42 
   43 #include <machine/bus.h>
   44 #include <machine/intr.h>
   45 
   46 #include <dev/scsipi/scsi_all.h>
   47 #include <dev/scsipi/scsipi_all.h>
   48 #include <dev/scsipi/scsiconf.h>
   49 
   50 #include <dev/eisa/eisareg.h>
   51 #include <dev/eisa/eisavar.h>
   52 #include <dev/eisa/eisadevs.h>
   53 
   54 #include <dev/ic/aic7xxx_osm.h>
   55 #include <dev/ic/aic7xxx_inline.h>
   56 #include <dev/ic/aic77xxreg.h>
   57 #include <dev/ic/aic77xxvar.h>
   58 
   59 static int      ahc_eisa_match(struct device *, struct cfdata *, void *);
   60 static void     ahc_eisa_attach(struct device *, struct device *, void *);
   61 
   62 
   63 CFATTACH_DECL(ahc_eisa, sizeof(struct ahc_softc),
   64     ahc_eisa_match, ahc_eisa_attach, NULL, NULL);
   65 
   66 /*
   67  * Check the slots looking for a board we recognise
   68  * If we find one, note it's address (slot) and call
   69  * the actual probe routine to check it out.
   70  */
   71 static int
   72 ahc_eisa_match(struct device *parent, struct cfdata *match, void *aux)
   73 {
   74         struct eisa_attach_args *ea = aux;
   75         bus_space_tag_t iot = ea->ea_iot;
   76         bus_space_handle_t ioh;
   77         int irq;
   78 
   79         /* must match one of our known ID strings */
   80         if (strcmp(ea->ea_idstring, "ADP7770") &&
   81             strcmp(ea->ea_idstring, "ADP7771"))
   82                 return (0);
   83 
   84         if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
   85             AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh))
   86                 return (0);
   87 
   88         irq = ahc_aic77xx_irq(iot, ioh);
   89 
   90         bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
   91 
   92         return (irq >= 0);
   93 }
   94 
   95 static void
   96 ahc_eisa_attach(struct device *parent, struct device *self, void *aux)
   97 {
   98         struct ahc_softc *ahc = (void *)self;
   99         struct eisa_attach_args *ea = aux;
  100         eisa_chipset_tag_t ec = ea->ea_ec;
  101         eisa_intr_handle_t ih;
  102         bus_space_tag_t iot = ea->ea_iot;
  103         bus_space_handle_t ioh;
  104         int irq, intrtype;
  105         const char *intrstr, *intrtypestr;
  106         u_int biosctrl;
  107         u_int scsiconf;
  108         u_int scsiconf1;
  109         u_char intdef;
  110 #ifdef AHC_DEBUG
  111         int i;
  112 #endif
  113 
  114         if (bus_space_map(iot, EISA_SLOT_ADDR(ea->ea_slot) +
  115             AHC_EISA_SLOT_OFFSET, AHC_EISA_IOSIZE, 0, &ioh)) {
  116                 printf("%s: could not map I/O addresses", ahc->sc_dev.dv_xname);
  117                 return;
  118         }
  119         if ((irq = ahc_aic77xx_irq(iot, ioh)) < 0) {
  120                 printf("%s: ahc_aic77xx_irq failed!", ahc->sc_dev.dv_xname);
  121                 goto free_io;
  122         }
  123 
  124         if (strcmp(ea->ea_idstring, "ADP7770") == 0) {
  125                 printf(": %s\n", EISA_PRODUCT_ADP7770);
  126         } else if (strcmp(ea->ea_idstring, "ADP7771") == 0) {
  127                 printf(": %s\n", EISA_PRODUCT_ADP7771);
  128         } else {
  129                 printf(": Unknown device type %s", ea->ea_idstring);
  130                 goto free_io;
  131         }
  132 
  133         ahc_set_name(ahc, ahc->sc_dev.dv_xname);
  134         ahc->parent_dmat = ea->ea_dmat;
  135         ahc->chip = AHC_AIC7770|AHC_EISA;
  136         ahc->features = AHC_AIC7770_FE;
  137         ahc->flags = AHC_PAGESCBS;
  138         ahc->bugs = AHC_TMODE_WIDEODD_BUG;
  139         ahc->tag = iot;
  140         ahc->bsh = ioh;
  141         ahc->channel = 'A';
  142 
  143         if (ahc_softc_init(ahc) != 0)
  144                 goto free_io;
  145 
  146         ahc_intr_enable(ahc, FALSE);
  147 
  148         if (ahc_reset(ahc) != 0)
  149                 goto free_io;
  150 
  151         if (eisa_intr_map(ec, irq, &ih)) {
  152                 printf("%s: couldn't map interrupt (%d)\n",
  153                     ahc->sc_dev.dv_xname, irq);
  154                 goto free_io;
  155         }
  156 
  157         intdef = bus_space_read_1(iot, ioh, INTDEF);
  158 
  159         if (intdef & EDGE_TRIG) {
  160                 intrtype = IST_EDGE;
  161                 intrtypestr = "edge triggered";
  162         } else {
  163                 intrtype = IST_LEVEL;
  164                 intrtypestr = "level sensitive";
  165         }
  166         intrstr = eisa_intr_string(ec, ih);
  167         ahc->ih = eisa_intr_establish(ec, ih,
  168             intrtype, IPL_BIO, ahc_intr, ahc);
  169         if (ahc->ih == NULL) {
  170                 printf("%s: couldn't establish %s interrupt",
  171                     ahc->sc_dev.dv_xname, intrtypestr);
  172                 if (intrstr != NULL)
  173                         printf(" at %s", intrstr);
  174                 printf("\n");
  175                 goto free_io;
  176         }
  177         if (intrstr != NULL)
  178                 printf("%s: %s interrupting at %s\n", ahc->sc_dev.dv_xname,
  179                        intrtypestr, intrstr);
  180 
  181         /*
  182          * Now that we know we own the resources we need, do the
  183          * card initialization.
  184          *
  185          * First, the aic7770 card specific setup.
  186          */
  187         biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
  188         scsiconf = ahc_inb(ahc, SCSICONF);
  189         scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
  190 
  191 #ifdef AHC_DEBUG
  192         for (i = TARG_SCSIRATE; i <= HA_274_BIOSCTRL; i+=8) {
  193                 printf("0x%x, 0x%x, 0x%x, 0x%x, "
  194                        "0x%x, 0x%x, 0x%x, 0x%x\n",
  195                        ahc_inb(ahc, i),
  196                        ahc_inb(ahc, i+1),
  197                        ahc_inb(ahc, i+2),
  198                        ahc_inb(ahc, i+3),
  199                        ahc_inb(ahc, i+4),
  200                        ahc_inb(ahc, i+5),
  201                        ahc_inb(ahc, i+6),
  202                        ahc_inb(ahc, i+7));
  203         }
  204 #endif
  205 
  206         /* Get the primary channel information */
  207         if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
  208                 ahc->flags |= AHC_PRIMARY_CHANNEL;
  209 
  210         if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
  211                 ahc->flags |= AHC_USEDEFAULTS;
  212         } else if ((ahc->features & AHC_WIDE) != 0) {
  213                 ahc->our_id = scsiconf1 & HWSCSIID;
  214                 if (scsiconf & TERM_ENB)
  215                         ahc->flags |= AHC_TERM_ENB_A;
  216         } else {
  217                 ahc->our_id = scsiconf & HSCSIID;
  218                 ahc->our_id_b = scsiconf1 & HSCSIID;
  219                 if (scsiconf & TERM_ENB)
  220                         ahc->flags |= AHC_TERM_ENB_A;
  221                 if (scsiconf1 & TERM_ENB)
  222                         ahc->flags |= AHC_TERM_ENB_B;
  223         }
  224         if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
  225                 ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
  226 
  227         /* Attach sub-devices */
  228         if (ahc_aic77xx_attach(ahc) == 0)
  229                 return; /* succeed */
  230 
  231         /* failed */
  232         eisa_intr_disestablish(ec, ahc->ih);
  233 free_io:
  234         bus_space_unmap(iot, ioh, AHC_EISA_IOSIZE);
  235 }

Cache object: d20a8ccae8c5f1c00319bdc19f89e2bd


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