1 /* $OpenBSD: sb_isa.c,v 1.12 2022/04/06 18:59:28 naddy Exp $ */ 2 /* $NetBSD: sb_isa.c,v 1.15 1997/11/30 15:32:25 drochner Exp $ */ 3 4 /* 5 * Copyright (c) 1991-1993 Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the Computer Systems 19 * Engineering Group at Lawrence Berkeley Laboratory. 20 * 4. Neither the name of the University nor of the Laboratory may be used 21 * to endorse or promote products derived from this software without 22 * specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/errno.h> 41 #include <sys/ioctl.h> 42 #include <sys/syslog.h> 43 #include <sys/device.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 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(struct device *, struct sbdsp_softc *, struct isa_attach_args *); 60 61 int sb_isa_match(struct device *, void *, void *); 62 void sb_isa_attach(struct device *, struct device *, void *); 63 64 const struct cfattach sb_isa_ca = { 65 sizeof(struct sbdsp_softc), sb_isa_match, sb_isa_attach 66 }; 67 68 /* 69 * Probe / attach routines. 70 */ 71 72 /* 73 * Probe for the soundblaster hardware. 74 */ 75 int 76 sb_isa_match(struct device *parent, void *match, void *aux) 77 { 78 struct sbdsp_softc probesc, *sc = &probesc; 79 80 bzero(sc, sizeof *sc); 81 sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata; 82 strlcpy(sc->sc_dev.dv_xname, "sb", sizeof sc->sc_dev.dv_xname); 83 return sbfind(parent, sc, aux); 84 } 85 86 static int 87 sbfind(struct device *parent, struct sbdsp_softc *sc, 88 struct isa_attach_args *ia) 89 { 90 int rc = 0; 91 92 if (!SB_BASE_VALID(ia->ia_iobase)) 93 return 0; 94 95 sc->sc_iot = ia->ia_iot; 96 97 /* Map i/o space [we map 24 ports which is the max of the sb and pro] */ 98 if (bus_space_map(sc->sc_iot, ia->ia_iobase, SBP_NPORT, 0, 99 &sc->sc_ioh)) 100 return 0; 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 = ia->ia_drq2; 106 sc->sc_ic = ia->ia_ic; 107 108 if (!sbmatch(sc)) 109 goto bad; 110 111 if ((sc->sc_drq8 != -1 && !isa_drq_isfree(parent, sc->sc_drq8)) || 112 (sc->sc_drq16 != -1 && !isa_drq_isfree(parent, sc->sc_drq16))) 113 goto bad; 114 115 if (ISSBPROCLASS(sc)) 116 ia->ia_iosize = SBP_NPORT; 117 else 118 ia->ia_iosize = SB_NPORT; 119 120 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 121 ia->ia_drq2 = -1; 122 123 ia->ia_irq = sc->sc_irq; 124 125 rc = 1; 126 127 bad: 128 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 129 return rc; 130 } 131 132 133 /* 134 * Attach hardware to driver, attach hardware driver to audio 135 * pseudo-device driver . 136 */ 137 void 138 sb_isa_attach(struct device *parent, struct device *self, void *aux) 139 { 140 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 141 struct isa_attach_args *ia = aux; 142 143 if (!sbfind(parent, sc, ia) || 144 bus_space_map(sc->sc_iot, ia->ia_iobase, ia->ia_iosize, 0, 145 &sc->sc_ioh)) { 146 printf("%s: sbfind failed\n", sc->sc_dev.dv_xname); 147 return; 148 } 149 sc->sc_ic = ia->ia_ic; 150 sc->sc_isa = parent; 151 sbattach(sc); 152 } 153