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

1.1     ! nbrk        1: /*     $OpenBSD: sb_isapnp.c,v 1.13 2002/03/14 01:26:56 millert Exp $  */
        !             2: /*     $NetBSD: sb_isa.c,v 1.3 1997/03/20 11:03:11 mycroft Exp $       */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1991-1993 Regents of the University of California.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *     This product includes software developed by the Computer Systems
        !            19:  *     Engineering Group at Lawrence Berkeley Laboratory.
        !            20:  * 4. Neither the name of the University nor of the Laboratory may be used
        !            21:  *    to endorse or promote products derived from this software without
        !            22:  *    specific prior written permission.
        !            23:  *
        !            24:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            25:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            26:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            27:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            28:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            29:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            30:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            31:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            32:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            33:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            34:  * SUCH DAMAGE.
        !            35:  *
        !            36:  */
        !            37:
        !            38: #include <sys/param.h>
        !            39: #include <sys/systm.h>
        !            40: #include <sys/errno.h>
        !            41: #include <sys/ioctl.h>
        !            42: #include <sys/syslog.h>
        !            43: #include <sys/device.h>
        !            44: #include <sys/proc.h>
        !            45:
        !            46: #include <sys/audioio.h>
        !            47: #include <dev/audio_if.h>
        !            48: #include <dev/midi_if.h>
        !            49: #include <dev/mulaw.h>
        !            50:
        !            51: #include <dev/isa/isavar.h>
        !            52: #include <dev/isa/isadmavar.h>
        !            53:
        !            54: #include <dev/isa/sbreg.h>
        !            55: #include <dev/isa/sbvar.h>
        !            56:
        !            57: #include <dev/isa/sbdspvar.h>
        !            58:
        !            59: int    sb_isapnp_match(struct device *, void *, void *);
        !            60: void   sb_isapnp_attach(struct device *, struct device *, void *);
        !            61:
        !            62: struct cfattach sb_isapnp_ca = {
        !            63:        sizeof(struct sbdsp_softc), sb_isapnp_match, sb_isapnp_attach
        !            64: };
        !            65:
        !            66: /*
        !            67:  * Probe / attach routines.
        !            68:  */
        !            69:
        !            70: /*
        !            71:  * Probe for the soundblaster hardware.
        !            72:  */
        !            73: int
        !            74: sb_isapnp_match(parent, match, aux)
        !            75:        struct device *parent;
        !            76:        void *match, *aux;
        !            77: {
        !            78:        struct isa_attach_args *ia = aux;
        !            79:
        !            80:        if (ia->ipa_ndrq < 1)
        !            81:                return 0;
        !            82:        return 1;
        !            83: }
        !            84:
        !            85: /*
        !            86:  * Attach hardware to driver, attach hardware driver to audio
        !            87:  * pseudo-device driver.
        !            88:  */
        !            89: void
        !            90: sb_isapnp_attach(parent, self, aux)
        !            91:        struct device *parent, *self;
        !            92:        void *aux;
        !            93: {
        !            94:        struct sbdsp_softc *sc = (struct sbdsp_softc *) self;
        !            95:        struct isa_attach_args *ia = aux;
        !            96:
        !            97:        sc->sc_iot = ia->ia_iot;
        !            98:        sc->sc_ioh = ia->ipa_io[0].h;
        !            99:        sc->sc_irq = ia->ipa_irq[0].num;
        !           100:        sc->sc_iobase = ia->ipa_io[0].base;
        !           101:        sc->sc_ic = ia->ia_ic;
        !           102:        sc->sc_drq8 = ia->ipa_drq[0].num;
        !           103:
        !           104:        if (ia->ipa_ndrq > 1 && ia->ipa_drq[0].num != ia->ipa_drq[1].num) {
        !           105:                /* Some cards have the 16 bit drq first */
        !           106:                if (sc->sc_drq8 >= 4) {
        !           107:                        sc->sc_drq16 = sc->sc_drq8;
        !           108:                        sc->sc_drq8 = ia->ipa_drq[1].num;
        !           109:                } else
        !           110:                        sc->sc_drq16 = ia->ipa_drq[1].num;
        !           111:        } else
        !           112:                sc->sc_drq16 = DRQUNK;
        !           113:
        !           114: #if NMIDI > 0
        !           115:        if (ia->ipa_nio > 1) {
        !           116:                sc->sc_mpu_sc.iobase = ia->ipa_io[1].base;
        !           117:                sc->sc_mpu_sc.ioh = ia->ipa_io[1].h;
        !           118:        } else
        !           119:                sc->sc_mpu_sc.iobase = 0;
        !           120: #endif
        !           121:
        !           122:        if (!sbmatch(sc)) {
        !           123:                printf(": sbmatch failed\n");
        !           124:                return;
        !           125:        }
        !           126:
        !           127:        sc->sc_isa = parent->dv_parent;
        !           128:        sbattach(sc);
        !           129: }