sb_isa.c revision 1.16
1 /* $NetBSD: sb_isa.c,v 1.16 1998/06/09 00:05:46 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 static int sbfind __P((struct device *, struct sbdsp_softc *, struct isa_attach_args *)); 60 61 #ifdef __BROKEN_INDIRECT_CONFIG 62 int sb_isa_match __P((struct device *, void *, void *)); 63 #else 64 int sb_isa_match __P((struct device *, struct cfdata *, void *)); 65 #endif 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 #ifdef __BROKEN_INDIRECT_CONFIG 83 void *match; 84 #else 85 struct cfdata *match; 86 #endif 87 void *aux; 88 { 89 struct sbdsp_softc probesc, *sc = &probesc; 90 91 bzero(sc, sizeof *sc); 92 #ifdef __BROKEN_INDIRECT_CONFIG 93 sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata; 94 #else 95 sc->sc_dev.dv_cfdata = match; 96 #endif 97 strcpy(sc->sc_dev.dv_xname, "sb"); 98 return sbfind(parent, sc, aux); 99 } 100 101 static int 102 sbfind(parent, sc, ia) 103 struct device *parent; 104 struct sbdsp_softc *sc; 105 struct isa_attach_args *ia; 106 { 107 int rc = 0; 108 109 if (!SB_BASE_VALID(ia->ia_iobase)) { 110 printf("sb: configured iobase 0x%x invalid\n", ia->ia_iobase); 111 return 0; 112 } 113 114 sc->sc_iot = ia->ia_iot; 115 116 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 117 if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0, 118 &sc->sc_ioh)) { 119 printf("sb: can't map i/o space 0x%x/%d in probe\n", 120 ia->ia_iobase, SBP_NPORT); 121 return 0; 122 } 123 124 sc->sc_iobase = ia->ia_iobase; 125 sc->sc_irq = ia->ia_irq; 126 sc->sc_drq8 = ia->ia_drq; 127 sc->sc_drq16 = ia->ia_drq2; 128 sc->sc_ic = ia->ia_ic; 129 130 if (!sbmatch(sc)) 131 goto bad; 132 133 if ((sc->sc_drq8 != -1 && !isa_drq_isfree(sc->sc_ic, sc->sc_drq8)) || 134 (sc->sc_drq16 != -1 && !isa_drq_isfree(sc->sc_ic, sc->sc_drq16))) 135 goto bad; 136 137 if (ISSBPROCLASS(sc)) 138 ia->ia_iosize = SBP_NPORT; 139 else 140 ia->ia_iosize = SB_NPORT; 141 142 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 143 ia->ia_drq2 = -1; 144 145 ia->ia_irq = sc->sc_irq; 146 147 rc = 1; 148 149 bad: 150 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 151 return rc; 152 } 153 154 155 /* 156 * Attach hardware to driver, attach hardware driver to audio 157 * pseudo-device driver . 158 */ 159 void 160 sb_isa_attach(parent, self, aux) 161 struct device *parent, *self; 162 void *aux; 163 { 164 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 165 struct isa_attach_args *ia = aux; 166 167 if (!sbfind(parent, sc, ia) || 168 bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 169 0, &sc->sc_ioh)) { 170 printf("%s: sbfind failed\n", sc->sc_dev.dv_xname); 171 return; 172 } 173 sc->sc_ic = ia->ia_ic; 174 sbattach(sc); 175 } 176
Indexes created Thu Sep 25 08:09:54 GMT 2025