1 /* $NetBSD: sb_isa.c,v 1.24 2001/11/13 08:01:30 lukem 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/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: sb_isa.c,v 1.24 2001/11/13 08:01:30 lukem Exp $"); 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 #include <dev/midi_if.h> 53 #include <dev/mulaw.h> 54 55 #include <dev/isa/isavar.h> 56 #include <dev/isa/isadmavar.h> 57 58 #include <dev/isa/sbreg.h> 59 #include <dev/isa/sbvar.h> 60 61 #include <dev/isa/sbdspvar.h> 62 63 static int sbfind __P((struct device *, struct sbdsp_softc *, struct isa_attach_args *)); 64 65 int sb_isa_match __P((struct device *, struct cfdata *, void *)); 66 void sb_isa_attach __P((struct device *, struct device *, void *)); 67 68 struct cfattach sb_isa_ca = { 69 sizeof(struct sbdsp_softc), sb_isa_match, sb_isa_attach 70 }; 71 72 /* 73 * Probe / attach routines. 74 */ 75 76 /* 77 * Probe for the soundblaster hardware. 78 */ 79 int 80 sb_isa_match(parent, match, aux) 81 struct device *parent; 82 struct cfdata *match; 83 void *aux; 84 { 85 struct sbdsp_softc probesc, *sc = &probesc; 86 87 memset(sc, 0, sizeof *sc); 88 sc->sc_dev.dv_cfdata = match; 89 strcpy(sc->sc_dev.dv_xname, "sb"); 90 return sbfind(parent, sc, aux); 91 } 92 93 static int 94 sbfind(parent, sc, ia) 95 struct device *parent; 96 struct sbdsp_softc *sc; 97 struct isa_attach_args *ia; 98 { 99 int rc = 0; 100 101 if (!SB_BASE_VALID(ia->ia_iobase)) { 102 printf("sb: configured iobase 0x%x invalid\n", ia->ia_iobase); 103 return 0; 104 } 105 106 sc->sc_ic = ia->ia_ic; 107 108 sc->sc_iot = ia->ia_iot; 109 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 110 if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0, 111 &sc->sc_ioh)) 112 return 0; 113 114 /* XXX These are only for setting chip configuration registers. */ 115 sc->sc_iobase = ia->ia_iobase; 116 sc->sc_irq = ia->ia_irq; 117 118 sc->sc_drq8 = ia->ia_drq; 119 sc->sc_drq16 = ia->ia_drq2; 120 121 if (!sbmatch(sc)) 122 goto bad; 123 124 if (ISSBPROCLASS(sc)) 125 ia->ia_iosize = SBP_NPORT; 126 else 127 ia->ia_iosize = SB_NPORT; 128 129 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 130 ia->ia_drq2 = -1; 131 132 ia->ia_irq = sc->sc_irq; 133 134 rc = 1; 135 136 bad: 137 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 138 return rc; 139 } 140 141 142 /* 143 * Attach hardware to driver, attach hardware driver to audio 144 * pseudo-device driver . 145 */ 146 void 147 sb_isa_attach(parent, self, aux) 148 struct device *parent, *self; 149 void *aux; 150 { 151 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 152 struct isa_attach_args *ia = aux; 153 154 if (!sbfind(parent, sc, ia) || 155 bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 156 0, &sc->sc_ioh)) { 157 printf("%s: sbfind failed\n", sc->sc_dev.dv_xname); 158 return; 159 } 160 161 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 162 IPL_AUDIO, sbdsp_intr, sc); 163 164 sbattach(sc); 165 } 166