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/ofisa/ess_ofisa.c

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    1 /*      $NetBSD: ess_ofisa.c,v 1.12 2003/05/03 18:11:31 wiz 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 Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
    9  * NASA Ames Research Center.
   10  *
   11  * Redistribution and use in source and binary forms, with or without
   12  * modification, are permitted provided that the following conditions
   13  * are met:
   14  * 1. Redistributions of source code must retain the above copyright
   15  *    notice, this list of conditions and the following disclaimer.
   16  * 2. Redistributions in binary form must reproduce the above copyright
   17  *    notice, this list of conditions and the following disclaimer in the
   18  *    documentation and/or other materials provided with the distribution.
   19  * 3. All advertising materials mentioning features or use of this software
   20  *    must display the following acknowledgement:
   21  *      This product includes software developed by the NetBSD
   22  *      Foundation, Inc. and its contributors.
   23  * 4. Neither the name of The NetBSD Foundation nor the names of its
   24  *    contributors may be used to endorse or promote products derived
   25  *    from this software without specific prior written permission.
   26  *
   27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   37  * POSSIBILITY OF SUCH DAMAGE.
   38  */
   39 
   40 #include <sys/cdefs.h>
   41 __KERNEL_RCSID(0, "$NetBSD: ess_ofisa.c,v 1.12 2003/05/03 18:11:31 wiz Exp $");
   42 
   43 #include <sys/param.h>
   44 #include <sys/systm.h>
   45 #include <sys/device.h>
   46 
   47 #include <machine/bus.h>
   48 #include <machine/intr.h>
   49 
   50 #include <sys/audioio.h>
   51 #include <dev/audio_if.h>
   52 #include <dev/mulaw.h>
   53 
   54 #include <dev/ofw/openfirm.h>
   55 #include <dev/isa/isavar.h>
   56 #include <dev/ofisa/ofisavar.h>
   57 
   58 #include <dev/isa/essreg.h>
   59 #include <dev/isa/essvar.h>
   60 
   61 int     ess_ofisa_match __P((struct device *, struct cfdata *, void *));
   62 void    ess_ofisa_attach __P((struct device *, struct device *, void *));
   63 
   64 CFATTACH_DECL(ess_ofisa, sizeof(struct ess_softc),
   65     ess_ofisa_match, ess_ofisa_attach, NULL, NULL);
   66 
   67 int
   68 ess_ofisa_match(parent, cf, aux)
   69         struct device *parent;
   70         struct cfdata *cf;
   71         void *aux;
   72 {
   73         struct ofisa_attach_args *aa = aux;
   74         static const char *const compatible_strings[] = {
   75                 "ESST,es1887-codec",            /* ESS 1887 */
   76                 "ESST,es1888-codec",            /* ESS 1888 */
   77                 "ESST,es888-codec",             /* ESS 888 */
   78                 NULL,
   79         };
   80         int rv = 0;
   81 
   82         /* XXX table */
   83         if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) {
   84                 rv = 10;
   85         }
   86 
   87         return (rv);
   88 }
   89 
   90 void
   91 ess_ofisa_attach(parent, self, aux)
   92         struct device *parent, *self;
   93         void *aux;
   94 {
   95         struct ess_softc *sc = (void *)self;
   96         struct ofisa_attach_args *aa = aux;
   97         struct ofisa_reg_desc reg;
   98         struct ofisa_intr_desc intr[2];
   99         struct ofisa_dma_desc dma[2];
  100         int n, ndrq;
  101         char *model;
  102 
  103         /*
  104          * We're living on an OFW.  We have to ask the OFW what our
  105          * registers and interrupts properties look like.
  106          *
  107          * We expect:
  108          *
  109          *      1      i/o register region
  110          *      1 or 2 interrupts
  111          *      2      DMA channels
  112          */
  113 
  114         n = ofisa_reg_get(aa->oba.oba_phandle, &reg, 1);
  115         if (n != 1) {
  116                 printf(": error getting register data\n");
  117                 return;
  118         }
  119         if (reg.type != OFISA_REG_TYPE_IO) {
  120                 printf(": register type not i/o\n");
  121                 return;
  122         }
  123         if (reg.len != ESS_NPORT) {
  124                 printf(": weird register size (%lu, expected %d)\n",
  125                     (unsigned long)reg.len, ESS_NPORT);
  126                 return;
  127         }
  128 
  129         n = ofisa_intr_get(aa->oba.oba_phandle, intr, 2);
  130         if (n == 1) {
  131                 sc->sc_audio1.irq = intr[0].irq;
  132                 sc->sc_audio1.ist = intr[0].share;
  133                 sc->sc_audio2.irq = intr[0].irq;
  134                 sc->sc_audio2.ist = intr[0].share;
  135         } else if (n == 2) {
  136                 sc->sc_audio1.irq = intr[0].irq;
  137                 sc->sc_audio1.ist = intr[0].share;
  138                 sc->sc_audio2.irq = intr[1].irq;
  139                 sc->sc_audio2.ist = intr[1].share;
  140         } else {
  141                 printf(": error getting interrupt data\n");
  142                 return;
  143         }
  144 
  145         ndrq = ofisa_dma_get(aa->oba.oba_phandle, dma, 2);
  146         if (ndrq != 2) {
  147                 printf(": error getting DMA data\n");
  148                 return;
  149         }
  150         sc->sc_audio1.drq = dma[0].drq;
  151         sc->sc_audio2.drq = dma[1].drq;
  152 
  153         sc->sc_ic = aa->ic;
  154 
  155         sc->sc_iot = aa->iot;
  156         sc->sc_iobase = reg.addr;
  157         if (bus_space_map(sc->sc_iot, sc->sc_iobase, reg.len, 0,
  158             &sc->sc_ioh)) {
  159                 printf(": unable to map register space\n");
  160                 return;
  161         }
  162 
  163         /* 
  164          * The Shark firmware doesn't program the ESS ISA address registers.
  165          * Do that here instead of inside essmatch() since we want to defer
  166          * to the firmware on other platforms.
  167          */
  168         if (ess_config_addr(sc))
  169                 return;
  170         if (essmatch(sc) == 0) {
  171                 printf(": essmatch failed\n");
  172                 return;
  173         }
  174 
  175         n = OF_getproplen(aa->oba.oba_phandle, "model");
  176         if (n > 0) {
  177                 model = alloca(n);
  178                 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) == n)
  179                         printf(": %s\n%s", model, sc->sc_dev.dv_xname);
  180         }
  181 
  182         essattach(sc);
  183 }

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