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

1.1     ! nbrk        1: /*     $OpenBSD; wss_isapnp.c,v1.0 1999/1/5 14:08:57 mike Exp $        */
        !             2: /*     $NetBSD: wss_isapnp.c,v 1.5 1998/11/25 22:17:07 augustss Exp $  */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1997 The NetBSD Foundation, Inc.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to The NetBSD Foundation
        !             9:  * by Lennart Augustsson (augustss@netbsd.org).
        !            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/param.h>
        !            41: #include <sys/systm.h>
        !            42: #include <sys/errno.h>
        !            43: #include <sys/ioctl.h>
        !            44: #include <sys/syslog.h>
        !            45: #include <sys/device.h>
        !            46: #include <sys/proc.h>
        !            47:
        !            48: #include <machine/bus.h>
        !            49:
        !            50: #include <sys/audioio.h>
        !            51: #include <dev/audio_if.h>
        !            52:
        !            53: #include <dev/isa/isavar.h>
        !            54: #include <dev/isa/isadmavar.h>
        !            55:
        !            56: #include <dev/isa/isapnpreg.h>
        !            57:
        !            58: #include <dev/isa/ad1848var.h>
        !            59: #include <dev/ic/ad1848reg.h>
        !            60: #include <dev/isa/madreg.h>
        !            61: #include <dev/isa/wssreg.h>
        !            62: #include <dev/isa/wssvar.h>
        !            63:
        !            64: int    wss_isapnp_match(struct device *, void *, void *);
        !            65: void   wss_isapnp_attach(struct device *, struct device *, void *);
        !            66:
        !            67: struct cfattach wss_isapnp_ca = {
        !            68:        sizeof(struct wss_softc), wss_isapnp_match, wss_isapnp_attach
        !            69: };
        !            70:
        !            71:
        !            72: /*
        !            73:  * Probe / attach routines.
        !            74:  */
        !            75:
        !            76: /*
        !            77:  * Probe for the WSS hardware.
        !            78:  */
        !            79: int
        !            80: wss_isapnp_match(parent, match, aux)
        !            81:        struct device *parent;
        !            82:        void *match, *aux;
        !            83: {
        !            84:        return 1;
        !            85: }
        !            86:
        !            87: /*
        !            88:  * Attach hardware to driver, attach hardware driver to audio
        !            89:  * pseudo-device driver.
        !            90:  */
        !            91: void
        !            92: wss_isapnp_attach(parent, self, aux)
        !            93:        struct device *parent, *self;
        !            94:        void *aux;
        !            95: {
        !            96:        struct isapnp_softc *pnp = (struct isapnp_softc *)parent;
        !            97:        struct wss_softc *sc = (struct wss_softc *)self;
        !            98:        struct ad1848_softc *ac = &sc->sc_ad1848;
        !            99:        struct isa_attach_args *ipa = aux;
        !           100:
        !           101:        /* probably broken */
        !           102:        isapnp_write_reg(pnp, ISAPNP_CONFIG_CONTROL, 0x02);
        !           103:
        !           104:        sc->sc_iot = ipa->ia_iot;
        !           105:        sc->sc_ioh = ipa->ipa_io[0].h;
        !           106:        sc->mad_chip_type = MAD_NONE;
        !           107:
        !           108: /* Set up AD1848 I/O handle. */
        !           109:        ac->sc_iot = sc->sc_iot;
        !           110:        ac->sc_isa = parent->dv_parent;
        !           111:        ac->sc_ioh = sc->sc_ioh;
        !           112:        ac->mode = 2;
        !           113:        ac->sc_iooffs = 0;
        !           114:
        !           115:        sc->sc_ic  = ipa->ia_ic;
        !           116:        sc->wss_irq = ipa->ipa_irq[0].num;
        !           117:        sc->wss_drq = ipa->ipa_drq[0].num;
        !           118:        sc->wss_recdrq = ipa->ipa_ndrq > 1 ? ipa->ipa_drq[1].num :
        !           119:            ipa->ipa_drq[0].num;
        !           120:
        !           121:        if (ad1848_probe(&sc->sc_ad1848)==0) {
        !           122:                printf("%s: probe failed\n", ac->sc_dev.dv_xname);
        !           123:                return;
        !           124:        }
        !           125:
        !           126:        wssattach(sc);
        !           127: }
        !           128: