sb_isa.c revision 1.37
1 /* $NetBSD: sb_isa.c,v 1.37 2011/11/23 23:07:32 jmcneill 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 1.37 2011/11/23 23:07:32 jmcneill 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 <sys/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(device_t, struct sbdsp_softc *, int, 64 struct isa_attach_args *, cfdata_t); 65 66 int sb_isa_match(device_t, cfdata_t, void *); 67 void sb_isa_attach(device_t, device_t, void *); 68 69 CFATTACH_DECL_NEW(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(device_t parent, cfdata_t match, void *aux) 81 { 82 struct isa_attach_args *ia = aux; 83 struct sbdsp_softc probesc, *sc = &probesc; 84 85 if (ia->ia_nio < 1) 86 return (0); 87 if (ia->ia_nirq < 1) 88 return (0); 89 if (ia->ia_ndrq < 1) 90 return (0); 91 92 if (ISA_DIRECT_CONFIG(ia)) 93 return (0); 94 95 memset(sc, 0, sizeof *sc); 96 return sbfind(parent, sc, 1, aux, match); 97 } 98 99 static int 100 sbfind(device_t parent, struct sbdsp_softc *sc, int probing, 101 struct isa_attach_args *ia, cfdata_t match) 102 { 103 int rc = 0; 104 105 if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) { 106 printf("sb: configured iobase 0x%x invalid\n", 107 ia->ia_io[0].ir_addr); 108 return 0; 109 } 110 111 sc->sc_ic = ia->ia_ic; 112 113 sc->sc_iot = ia->ia_iot; 114 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 115 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, SBP_NPORT, 0, 116 &sc->sc_ioh)) 117 return 0; 118 119 /* XXX These are only for setting chip configuration registers. */ 120 sc->sc_iobase = ia->ia_io[0].ir_addr; 121 sc->sc_irq = ia->ia_irq[0].ir_irq; 122 123 sc->sc_drq8 = ia->ia_drq[0].ir_drq; 124 sc->sc_drq16 = ia->ia_drq[1].ir_drq; 125 126 if (!sbmatch(sc, probing, match)) 127 goto bad; 128 129 rc = 1; 130 131 if (probing) { 132 ia->ia_nio = 1; 133 if (ISSBPROCLASS(sc)) 134 ia->ia_io[0].ir_size = SBP_NPORT; 135 else 136 ia->ia_io[0].ir_size = SB_NPORT; 137 138 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 139 ia->ia_ndrq = 1; 140 else 141 ia->ia_ndrq = 2; 142 143 ia->ia_nirq = 1; 144 ia->ia_irq[0].ir_irq = sc->sc_irq; 145 146 ia->ia_niomem = 0; 147 } 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(device_t parent, device_t self, void *aux) 161 { 162 struct sbdsp_softc *sc = device_private(self); 163 struct isa_attach_args *ia = aux; 164 165 sc->sc_dev = self; 166 167 if (!sbfind(parent, sc, 0, ia, device_cfdata(self)) || 168 bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 169 ia->ia_io[0].ir_size, 0, &sc->sc_ioh)) { 170 aprint_error_dev(self, "sbfind failed\n"); 171 return; 172 } 173 174 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 175 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_SCHED); 176 177 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 178 IST_EDGE, IPL_SCHED, sbdsp_intr, sc); 179 180 sbattach(sc); 181 } 182
Indexes created Wed Sep 24 14:09:57 GMT 2025