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Annotation of sys/dev/isa/ym_isapnp.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: ym_isapnp.c,v 1.8 2002/03/14 01:26:57 millert Exp $ */
        !             2:
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1998 Constantine Sapuntzakis. All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. The name of the author may not be used to endorse or promote products
        !            16:  *    derived from this software without specific prior written permission.
        !            17:  *
        !            18:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            19:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            20:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            21:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            22:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            23:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            24:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            25:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            26:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            27:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            28:  */
        !            29:
        !            30: /*
        !            31:  *  Driver for the Yamaha OPL3-SA3 chipset. This is found on many laptops
        !            32:  *  and Pentium (II) motherboards.
        !            33:  */
        !            34:
        !            35: #include "midi.h"
        !            36:
        !            37: #include <sys/param.h>
        !            38: #include <sys/systm.h>
        !            39: #include <sys/errno.h>
        !            40: #include <sys/ioctl.h>
        !            41: #include <sys/syslog.h>
        !            42: #include <sys/device.h>
        !            43: #include <sys/proc.h>
        !            44:
        !            45: #include <sys/audioio.h>
        !            46: #include <dev/audio_if.h>
        !            47: #include <dev/midi_if.h>
        !            48:
        !            49: #include <dev/isa/isavar.h>
        !            50: #include <dev/isa/isadmavar.h>
        !            51:
        !            52: #include <dev/ic/ad1848reg.h>
        !            53: #include <dev/isa/ad1848var.h>
        !            54:
        !            55: #include <dev/ic/cs4231reg.h>
        !            56: #include <dev/isa/cs4231var.h>
        !            57: #include <dev/ic/mpuvar.h>
        !            58:
        !            59: #include <dev/isa/wssreg.h>
        !            60: #include <dev/isa/ymvar.h>
        !            61:
        !            62: int    ym_isapnp_match(struct device *, void *, void *);
        !            63: void   ym_isapnp_attach(struct device *, struct device *, void *);
        !            64:
        !            65: struct cfattach ym_isapnp_ca = {
        !            66:        sizeof(struct ym_softc), ym_isapnp_match, ym_isapnp_attach
        !            67: };
        !            68:
        !            69: /*
        !            70:  * Probe / attach routines.
        !            71:  */
        !            72:
        !            73: /*
        !            74:  * Probe for the soundblaster hardware.
        !            75:  */
        !            76: int
        !            77: ym_isapnp_match(parent, match, aux)
        !            78:        struct device *parent;
        !            79:        void *match, *aux;
        !            80: {
        !            81:        struct isa_attach_args *ia = aux;
        !            82:
        !            83:        if (ia->ipa_nio < 5)
        !            84:                return 0;
        !            85:        return 1;
        !            86: }
        !            87:
        !            88: /*
        !            89:  * Attach hardware to driver, attach hardware driver to audio
        !            90:  * pseudo-device driver.
        !            91:  */
        !            92: void
        !            93: ym_isapnp_attach(parent, self, aux)
        !            94:        struct device *parent, *self;
        !            95:        void *aux;
        !            96: {
        !            97:        struct ym_softc *sc = (struct ym_softc *)self;
        !            98:        struct isa_attach_args *ia = aux;
        !            99:
        !           100:        sc->sc_iot = ia->ia_iot;
        !           101:        sc->sc_ioh = ia->ipa_io[1].h;
        !           102:        sc->sc_ic = ia->ia_ic;
        !           103:
        !           104:        sc->ym_irq = ia->ipa_irq[0].num;
        !           105:        sc->ym_drq = ia->ipa_drq[0].num;
        !           106:        sc->ym_recdrq = ia->ipa_drq[1].num;
        !           107:
        !           108:        sc->sc_controlioh = ia->ipa_io[4].h;
        !           109:
        !           110:        sc->sc_ad1848.sc_ioh = sc->sc_ioh;
        !           111:        sc->sc_ad1848.sc_isa = parent->dv_parent;
        !           112:        sc->sc_ad1848.sc_iot = sc->sc_iot;
        !           113:        sc->sc_ad1848.sc_iooffs = WSS_CODEC;
        !           114:        sc->sc_ad1848.mode = 2;
        !           115:        sc->sc_ad1848.MCE_bit = MODE_CHANGE_ENABLE;
        !           116:
        !           117: #if NMIDI > 0
        !           118:        sc->sc_mpu_sc.iobase = ia->ipa_io[3].base;
        !           119:        sc->sc_mpu_sc.ioh = ia->ipa_io[3].h;
        !           120: #endif
        !           121:
        !           122:        ym_attach(sc);
        !           123: }