sb_isa.c revision 1.33
1 /* $NetBSD: sb_isa.c,v 1.33 2006/10/12 01:31:17 christos 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 1.33 2006/10/12 01:31:17 christos 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(struct device *, struct sbdsp_softc *, int, 64 struct isa_attach_args *); 65 66 int sb_isa_match(struct device *, struct cfdata *, void *); 67 void sb_isa_attach(struct device *, struct device *, void *); 68 69 CFATTACH_DECL(sb_isa, sizeof(struct sbdsp_softc), 70 sb_isa_match, sb_isa_attach, NULL, NULL); 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 isa_attach_args *ia = aux; 86 struct sbdsp_softc probesc, *sc = &probesc; 87 88 if (ia->ia_nio < 1) 89 return (0); 90 if (ia->ia_nirq < 1) 91 return (0); 92 if (ia->ia_ndrq < 1) 93 return (0); 94 95 if (ISA_DIRECT_CONFIG(ia)) 96 return (0); 97 98 memset(sc, 0, sizeof *sc); 99 strcpy(sc->sc_dev.dv_xname, "sb"); 100 sc->sc_dev.dv_cfdata = match; 101 return sbfind(parent, sc, 1, aux); 102 } 103 104 static int 105 sbfind(struct device *parent __unused, struct sbdsp_softc *sc, int probing, 106 struct isa_attach_args *ia) 107 { 108 int rc = 0; 109 110 if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) { 111 printf("sb: configured iobase 0x%x invalid\n", 112 ia->ia_io[0].ir_addr); 113 return 0; 114 } 115 116 sc->sc_ic = ia->ia_ic; 117 118 sc->sc_iot = ia->ia_iot; 119 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 120 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, SBP_NPORT, 0, 121 &sc->sc_ioh)) 122 return 0; 123 124 /* XXX These are only for setting chip configuration registers. */ 125 sc->sc_iobase = ia->ia_io[0].ir_addr; 126 sc->sc_irq = ia->ia_irq[0].ir_irq; 127 128 sc->sc_drq8 = ia->ia_drq[0].ir_drq; 129 sc->sc_drq16 = ia->ia_drq[1].ir_drq; 130 131 if (!sbmatch(sc)) 132 goto bad; 133 134 rc = 1; 135 136 if (probing) { 137 ia->ia_nio = 1; 138 if (ISSBPROCLASS(sc)) 139 ia->ia_io[0].ir_size = SBP_NPORT; 140 else 141 ia->ia_io[0].ir_size = SB_NPORT; 142 143 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 144 ia->ia_ndrq = 1; 145 else 146 ia->ia_ndrq = 2; 147 148 ia->ia_nirq = 1; 149 ia->ia_irq[0].ir_irq = sc->sc_irq; 150 151 ia->ia_niomem = 0; 152 } 153 154 bad: 155 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 156 return rc; 157 } 158 159 160 /* 161 * Attach hardware to driver, attach hardware driver to audio 162 * pseudo-device driver . 163 */ 164 void 165 sb_isa_attach(parent, self, aux) 166 struct device *parent, *self; 167 void *aux; 168 { 169 struct sbdsp_softc *sc = (struct sbdsp_softc *)self; 170 struct isa_attach_args *ia = aux; 171 172 if (!sbfind(parent, sc, 0, ia) || 173 bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 174 ia->ia_io[0].ir_size, 0, &sc->sc_ioh)) { 175 printf("%s: sbfind failed\n", sc->sc_dev.dv_xname); 176 return; 177 } 178 179 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 180 IST_EDGE, IPL_AUDIO, sbdsp_intr, sc); 181 182 sbattach(sc); 183 } 184
Indexes created Sat Sep 27 14:09:57 GMT 2025