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Annotation of sys/dev/isa/ym_isapnp.c, Revision 1.1.1.1

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: }