1 /* $NetBSD: sb_isa.c,v 1.7 1997/06/06 23:44:01 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1991-1993 Regents of the University of California. 5 * 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the Computer Systems 18 * Engineering Group at Lawrence Berkeley Laboratory. 19 * 4. Neither the name of the University nor of the Laboratory may be used 20 * to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 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 <machine/bus.h> 46 47 #include <sys/audioio.h> 48 #include <dev/audio_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_isa_match __P((struct device *, void *, void *)); 60 void sb_isa_attach __P((struct device *, struct device *, void *)); 61 62 struct cfattach sb_isa_ca = { 63 sizeof(struct sbdsp_softc), sb_isa_match, sb_isa_attach 64 }; 65 66 /* 67 * Probe / attach routines. 68 */ 69 70 /* 71 * Probe for the soundblaster hardware. 72 */ 73 int 74 sb_isa_match(parent, match, aux) 75 struct device *parent; 76 void *match, *aux; 77 { 78 /* 79 * Indirect brokedness! 80 */ 81 struct sbdsp_softc *sc = match; 82 struct isa_attach_args *ia = aux; 83 84 if (!SB_BASE_VALID(ia->ia_iobase)) { 85 printf("sb: configured iobase 0x%x invalid\n", ia->ia_iobase); 86 return 0; 87 } 88 89 sc->sc_iot = ia->ia_iot; 90 91 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 92 if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0, 93 &sc->sc_ioh)) { 94 printf("sb: can't map i/o space 0x%x/%d in probe\n", 95 ia->ia_iobase, SBP_NPORT); 96 return 0; 97 } 98 99 /* 100 * Indirect brokedness! 101 */ 102 sc->sc_iobase = ia->ia_iobase; 103 sc->sc_irq = ia->ia_irq; 104 sc->sc_drq8 = ia->ia_drq; 105 sc->sc_drq16 = 5; /* XXX XXX */ 106 sc->sc_ic = ia->ia_ic; 107 108 if (!sbmatch(sc)) { 109 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 110 return 0; 111 } 112 113 if (ISSBPROCLASS(sc)) 114 ia->ia_iosize = SBP_NPORT; 115 else 116 ia->ia_iosize = SB_NPORT; 117 118 ia->ia_irq = sc->sc_irq; 119 120 return 1; 121 } 122 123 124 /* 125 * Attach hardware to driver, attach hardware driver to audio 126 * pseudo-device driver . 127 */ 128 void 129 sb_isa_attach(parent, self, aux) 130 struct device *parent, *self; 131 void *aux; 132 { 133 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 134 135 sc->sc_isa = parent; 136 137 sbattach(sc); 138 } 139