1 /* $NetBSD: sb_isa.c,v 1.23 2001/07/18 20:39:53 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/midi_if.h> 50 #include <dev/mulaw.h> 51 52 #include <dev/isa/isavar.h> 53 #include <dev/isa/isadmavar.h> 54 55 #include <dev/isa/sbreg.h> 56 #include <dev/isa/sbvar.h> 57 58 #include <dev/isa/sbdspvar.h> 59 60 static int sbfind __P((struct device *, struct sbdsp_softc *, struct isa_attach_args *)); 61 62 int sb_isa_match __P((struct device *, struct cfdata *, void *)); 63 void sb_isa_attach __P((struct device *, struct device *, void *)); 64 65 struct cfattach sb_isa_ca = { 66 sizeof(struct sbdsp_softc), sb_isa_match, sb_isa_attach 67 }; 68 69 /* 70 * Probe / attach routines. 71 */ 72 73 /* 74 * Probe for the soundblaster hardware. 75 */ 76 int 77 sb_isa_match(parent, match, aux) 78 struct device *parent; 79 struct cfdata *match; 80 void *aux; 81 { 82 struct sbdsp_softc probesc, *sc = &probesc; 83 84 memset(sc, 0, sizeof *sc); 85 sc->sc_dev.dv_cfdata = match; 86 strcpy(sc->sc_dev.dv_xname, "sb"); 87 return sbfind(parent, sc, aux); 88 } 89 90 static int 91 sbfind(parent, sc, ia) 92 struct device *parent; 93 struct sbdsp_softc *sc; 94 struct isa_attach_args *ia; 95 { 96 int rc = 0; 97 98 if (!SB_BASE_VALID(ia->ia_iobase)) { 99 printf("sb: configured iobase 0x%x invalid\n", ia->ia_iobase); 100 return 0; 101 } 102 103 sc->sc_ic = ia->ia_ic; 104 105 sc->sc_iot = ia->ia_iot; 106 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 107 if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0, 108 &sc->sc_ioh)) 109 return 0; 110 111 /* XXX These are only for setting chip configuration registers. */ 112 sc->sc_iobase = ia->ia_iobase; 113 sc->sc_irq = ia->ia_irq; 114 115 sc->sc_drq8 = ia->ia_drq; 116 sc->sc_drq16 = ia->ia_drq2; 117 118 if (!sbmatch(sc)) 119 goto bad; 120 121 if (ISSBPROCLASS(sc)) 122 ia->ia_iosize = SBP_NPORT; 123 else 124 ia->ia_iosize = SB_NPORT; 125 126 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 127 ia->ia_drq2 = -1; 128 129 ia->ia_irq = sc->sc_irq; 130 131 rc = 1; 132 133 bad: 134 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 135 return rc; 136 } 137 138 139 /* 140 * Attach hardware to driver, attach hardware driver to audio 141 * pseudo-device driver . 142 */ 143 void 144 sb_isa_attach(parent, self, aux) 145 struct device *parent, *self; 146 void *aux; 147 { 148 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 149 struct isa_attach_args *ia = aux; 150 151 if (!sbfind(parent, sc, ia) || 152 bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 153 0, &sc->sc_ioh)) { 154 printf("%s: sbfind failed\n", sc->sc_dev.dv_xname); 155 return; 156 } 157 158 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 159 IPL_AUDIO, sbdsp_intr, sc); 160 161 sbattach(sc); 162 } 163