if_tr_isa.c

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    1 /*      $NetBSD: if_tr_isa.c,v 1.11 2002/10/02 03:10:48 thorpej Exp $   */
    2 
    3 /* XXXJRT changes isa_attach_args too early!! */
    4 
    5 /*
    6  * Copyright (c) 1999 The NetBSD Foundation, Inc.
    7  * All rights reserved.
    8  *
    9  * This code is derived from software contributed to The NetBSD Foundation
   10  * by Onno van der Linden.
   11  *
   12  * Redistribution and use in source and binary forms, with or without
   13  * modification, are permitted provided that the following conditions
   14  * are met:
   15  * 1. Redistributions of source code must retain the above copyright
   16  *    notice, this list of conditions and the following disclaimer.
   17  * 2. Redistributions in binary form must reproduce the above copyright
   18  *    notice, this list of conditions and the following disclaimer in the
   19  *    documentation and/or other materials provided with the distribution.
   20  * 3. All advertising materials mentioning features or use of this software
   21  *    must display the following acknowledgement:
   22  *        This product includes software developed by The NetBSD
   23  *        Foundation, Inc. and its contributors.
   24  * 4. Neither the name of The NetBSD Foundation nor the names of its 
   25  *    contributors may be used to endorse or promote products derived
   26  *    from this software without specific prior written permission.
   27  *
   28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   38  * POSSIBILITY OF SUCH DAMAGE.
   39  */
   40 
   41 #include <sys/cdefs.h>
   42 __KERNEL_RCSID(0, "$NetBSD: if_tr_isa.c,v 1.11 2002/10/02 03:10:48 thorpej Exp $");
   43 
   44 #undef TRISADEBUG
   45 
   46 #include <sys/param.h>
   47 #include <sys/systm.h>
   48 #include <sys/socket.h>
   49 #include <sys/device.h>
   50 
   51 #include <net/if.h>
   52 #include <net/if_ether.h>
   53 #include <net/if_media.h>
   54 
   55 #include <machine/cpu.h>
   56 #include <machine/bus.h>
   57 #include <machine/intr.h>
   58 
   59 #include <dev/isa/isavar.h>
   60 
   61 #include <dev/ic/tropicreg.h>
   62 #include <dev/ic/tropicvar.h>
   63 
   64 
   65 int     tr_isa_probe __P((struct device *, struct cfdata *, void *));
   66 int     trtcm_isa_probe __P((struct device *, struct cfdata *, void *));
   67 int     tribm_isa_probe __P((struct device *, struct cfdata *, void *));
   68 void    tr_isa_attach __P((struct device *, struct device *, void *));
   69 int     tr_isa_map_io __P((struct isa_attach_args *, bus_space_handle_t *,
   70             bus_space_handle_t *));
   71 void    tr_isa_unmap_io __P((struct isa_attach_args *, bus_space_handle_t,
   72             bus_space_handle_t));
   73 int     trtcm_isa_mediachange __P((struct tr_softc *));
   74 void    trtcm_isa_mediastatus __P((struct tr_softc *, struct ifmediareq *));
   75 #ifdef TRISADEBUG
   76 void    tr_isa_dumpaip __P((bus_space_tag_t, bus_space_handle_t));
   77 #endif
   78 
   79 /*
   80  * List of manufacturer specific probe routines.  Order is important.
   81  */
   82 int     (*tr_isa_probe_list[])(struct device *, struct cfdata *, void *) = {
   83                 trtcm_isa_probe,
   84                 tribm_isa_probe,
   85                 0
   86         };
   87 
   88 CFATTACH_DECL(tr_isa, sizeof(struct tr_softc),
   89     tr_isa_probe, tr_isa_attach, NULL, NULL);
   90 
   91 int
   92 tr_isa_map_io(ia, pioh, mmioh)
   93 struct isa_attach_args *ia;
   94 bus_space_handle_t *pioh, *mmioh;
   95 {
   96         bus_size_t mmio;
   97         u_int8_t s;
   98 
   99         if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr,
  100             ia->ia_io[0].ir_size, 0, pioh)) {
  101                 printf("tr_isa_map_io: can't map PIO ports\n");
  102                 return 1;
  103         }
  104 
  105         /* Read adapter switches and calculate addresses of MMIO. */
  106         s = bus_space_read_1(ia->ia_iot, *pioh, TR_SWITCH);
  107 
  108         if ((s & 0xfc) < ((TR_MMIO_MINADDR - TR_MMIO_OFFSET) >> 11) ||
  109             (s & 0xfc) > ((TR_MMIO_MAXADDR - TR_MMIO_OFFSET) >> 11)) {
  110                 bus_space_unmap(ia->ia_iot, *pioh, ia->ia_io[0].ir_size);
  111                 return 1;
  112         }
  113 
  114         mmio = ((s & 0xfc) << 11) + TR_MMIO_OFFSET;
  115         if (bus_space_map(ia->ia_memt, mmio, TR_MMIO_SIZE, 0, mmioh)) {
  116                 printf("tr_isa_map_io: can't map MMIO region 0x%05lx/%d\n",
  117                         mmio, TR_MMIO_SIZE);
  118                 bus_space_unmap(ia->ia_iot, *pioh, ia->ia_io[0].ir_size);
  119                 return 1;
  120         }
  121         return 0;
  122 }
  123 
  124 void
  125 tr_isa_unmap_io(ia, pioh, mmioh)
  126 struct isa_attach_args *ia;
  127 bus_space_handle_t pioh, mmioh;
  128 {
  129         bus_space_unmap(ia->ia_memt, mmioh, TR_MMIO_SIZE);
  130         bus_space_unmap(ia->ia_iot, pioh, ia->ia_io[0].ir_size);
  131 }
  132 
  133 static u_char tr_isa_id[] = {
  134         5, 0, 4, 9, 4, 3, 4, 15, 3, 6, 3, 1, 3, 1, 3, 0, 3, 9, 3, 9, 3, 0, 2, 0
  135 };
  136 
  137 /*
  138  * XXX handle multiple IBM TR cards (sram mapping !!)
  139  */
  140 
  141 int
  142 tr_isa_probe(parent, match, aux)
  143         struct device *parent;
  144         struct cfdata *match;
  145         void *aux;
  146 {
  147         struct isa_attach_args *ia = aux;
  148         int     i;
  149         bus_size_t      tr_id;
  150         bus_space_handle_t sramh, pioh, mmioh;
  151         int probecode;
  152         int matched = 0;
  153 
  154         if (ia->ia_nio < 1)
  155                 return (0);
  156         if (ia->ia_niomem < 1)
  157                 return (0);
  158         if (ia->ia_nirq < 1)
  159                 return (0);
  160 
  161         if (ISA_DIRECT_CONFIG(ia))
  162                 return (0);
  163 
  164         for (i = 0; tr_isa_probe_list[i] != 0; i++) {
  165                 probecode = tr_isa_probe_list[i](parent, match, aux);
  166                 if (probecode < 0)
  167                         return 0;       /* Fail instantly. */
  168                 if (probecode > 0)
  169                         break;          /* We have a match. */
  170         }
  171         if (tr_isa_probe_list[i] == 0)
  172                 return 0;               /* Nothing matched. */
  173         if (tr_isa_map_io(ia, &pioh, &mmioh))
  174                 return 0;
  175         tr_id = TR_ID_OFFSET;
  176         matched = 1;
  177         for (i = 0; i < sizeof(tr_isa_id); i++) {
  178                 if (bus_space_read_1(ia->ia_memt, mmioh, tr_id) !=
  179                     tr_isa_id[i])
  180                         matched = 0;
  181                 tr_id += 2;
  182         }
  183 #ifdef TRISADEBUG
  184         tr_isa_dumpaip(ia->ia_memt, mmioh);
  185 #endif
  186         tr_isa_unmap_io(ia, pioh, mmioh);
  187         if (!matched) {
  188                 return 0;
  189         }
  190         if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
  191             ia->ia_iomem[0].ir_size, 0, &sramh)) {
  192                 printf("tr_isa_probe: can't map shared ram\n");
  193                 return 0;
  194         }
  195         bus_space_unmap(ia->ia_memt, sramh, ia->ia_iomem[0].ir_size);
  196 
  197         ia->ia_nio = 1;
  198         ia->ia_niomem = 1;
  199         ia->ia_nirq = 1;
  200 
  201         ia->ia_ndrq = 0;
  202 
  203         return 1;
  204 }
  205 
  206 int trtcm_setspeed(struct tr_softc *, int);
  207 
  208 void
  209 tr_isa_attach(parent, self, aux)
  210         struct device *parent, *self;
  211         void    *aux;
  212 {
  213         struct tr_softc *sc = (void *) self;
  214         struct isa_attach_args *ia = aux;
  215 
  216         printf("\n");
  217 
  218         sc->sc_piot = ia->ia_iot;
  219         sc->sc_memt = ia->ia_memt;
  220         if (tr_isa_map_io(ia, &sc->sc_pioh, &sc->sc_mmioh)) {
  221                 printf("tr_isa_attach: IO space vanished\n");
  222                 return;
  223         }
  224         if (bus_space_map(sc->sc_memt, ia->ia_iomem[0].ir_addr,
  225             ia->ia_iomem[0].ir_size, 0, &sc->sc_sramh)) {
  226                 printf("tr_isa_attach: shared ram space vanished\n");
  227                 return;
  228         }
  229         /* set ACA offset */
  230         sc->sc_aca = TR_ACA_OFFSET;
  231         sc->sc_memwinsz = ia->ia_iomem[0].ir_size;
  232         sc->sc_maddr = ia->ia_iomem[0].ir_addr;
  233         /*
  234          * Determine total RAM on adapter and decide how much to use.
  235          * XXX Since we don't use RAM paging, use sc_memwinsz for now.
  236          */
  237         sc->sc_memsize = sc->sc_memwinsz;
  238         sc->sc_memreserved = 0;
  239 
  240         if (tr_reset(sc) != 0)
  241                 return;
  242 
  243         if (ia->ia_aux != NULL) {
  244                 sc->sc_mediastatus = trtcm_isa_mediastatus;
  245                 sc->sc_mediachange = trtcm_isa_mediachange;
  246         }
  247         else {
  248                 sc->sc_mediastatus = NULL;
  249                 sc->sc_mediachange = NULL;
  250         }
  251 
  252         if (tr_attach(sc) != 0)
  253                 return;
  254 
  255 /*
  256  * XXX 3Com 619 can use LEVEL intr
  257  */
  258         sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq,
  259             IST_EDGE, IPL_NET, tr_intr, sc);
  260 }
  261 
  262 #ifdef TRISADEBUG
  263 /*
  264  * Dump the adapters AIP
  265  */
  266 void
  267 tr_isa_dumpaip(memt, mmioh)
  268         bus_space_tag_t memt;
  269         bus_space_handle_t mmioh;
  270 {
  271         unsigned int off, val;
  272         printf("AIP contents:");
  273         for (off=0; off < 256; off++) {
  274                 val = bus_space_read_1(memt, mmioh, TR_MAC_OFFSET + off);
  275                 if ((off % 16) == 0)
  276                         printf("\n");
  277                 printf("%02x ", val);
  278         }
  279         printf("\n");
  280 }
  281 #endif

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FreeBSD/Linux Kernel Cross Reference sys/dev/isa/if_tr_isa.c

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sys/dev/isa/if_tr_isa.c