1 /* $NetBSD: sb_isa.c,v 1.39 2019/05/08 13:40:18 isaki 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 1.39 2019/05/08 13:40:18 isaki 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/audio_if.h> 52 #include <dev/midi_if.h> 53 54 #include <dev/isa/isavar.h> 55 #include <dev/isa/isadmavar.h> 56 57 #include <dev/isa/sbreg.h> 58 #include <dev/isa/sbvar.h> 59 60 #include <dev/isa/sbdspvar.h> 61 62 static int sbfind(device_t, struct sbdsp_softc *, int, 63 struct isa_attach_args *, cfdata_t); 64 65 int sb_isa_match(device_t, cfdata_t, void *); 66 void sb_isa_attach(device_t, device_t, void *); 67 68 CFATTACH_DECL_NEW(sb_isa, sizeof(struct sbdsp_softc), 69 sb_isa_match, sb_isa_attach, NULL, NULL); 70 71 /* 72 * Probe / attach routines. 73 */ 74 75 /* 76 * Probe for the soundblaster hardware. 77 */ 78 int 79 sb_isa_match(device_t parent, cfdata_t match, void *aux) 80 { 81 struct isa_attach_args *ia = aux; 82 struct sbdsp_softc probesc, *sc = &probesc; 83 84 if (ia->ia_nio < 1) 85 return (0); 86 if (ia->ia_nirq < 1) 87 return (0); 88 if (ia->ia_ndrq < 1) 89 return (0); 90 91 if (ISA_DIRECT_CONFIG(ia)) 92 return (0); 93 94 memset(sc, 0, sizeof *sc); 95 return sbfind(parent, sc, 1, aux, match); 96 } 97 98 static int 99 sbfind(device_t parent, struct sbdsp_softc *sc, int probing, 100 struct isa_attach_args *ia, cfdata_t match) 101 { 102 int rc = 0; 103 104 if (!SB_BASE_VALID(ia->ia_io[0].ir_addr)) { 105 printf("sb: configured iobase 0x%x invalid\n", 106 ia->ia_io[0].ir_addr); 107 return 0; 108 } 109 110 sc->sc_ic = ia->ia_ic; 111 112 sc->sc_iot = ia->ia_iot; 113 /* Map i/o space [we map 24 ports which is the max of the sb and pro */ 114 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, SBP_NPORT, 0, 115 &sc->sc_ioh)) 116 return 0; 117 118 /* XXX These are only for setting chip configuration registers. */ 119 sc->sc_iobase = ia->ia_io[0].ir_addr; 120 sc->sc_irq = ia->ia_irq[0].ir_irq; 121 122 sc->sc_drq8 = ia->ia_drq[0].ir_drq; 123 sc->sc_drq16 = ia->ia_drq[1].ir_drq; 124 125 if (!sbmatch(sc, probing, match)) 126 goto bad; 127 128 rc = 1; 129 130 if (probing) { 131 ia->ia_nio = 1; 132 if (ISSBPROCLASS(sc)) 133 ia->ia_io[0].ir_size = SBP_NPORT; 134 else 135 ia->ia_io[0].ir_size = SB_NPORT; 136 137 if (!ISSB16CLASS(sc) && sc->sc_model != SB_JAZZ) 138 ia->ia_ndrq = 1; 139 else 140 ia->ia_ndrq = 2; 141 142 ia->ia_nirq = 1; 143 ia->ia_irq[0].ir_irq = sc->sc_irq; 144 145 ia->ia_niomem = 0; 146 } 147 148 bad: 149 bus_space_unmap(sc->sc_iot, sc->sc_ioh, SBP_NPORT); 150 return rc; 151 } 152 153 154 /* 155 * Attach hardware to driver, attach hardware driver to audio 156 * pseudo-device driver . 157 */ 158 void 159 sb_isa_attach(device_t parent, device_t self, void *aux) 160 { 161 struct sbdsp_softc *sc = device_private(self); 162 struct isa_attach_args *ia = aux; 163 164 sc->sc_dev = self; 165 166 if (!sbfind(parent, sc, 0, ia, device_cfdata(self)) || 167 bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 168 ia->ia_io[0].ir_size, 0, &sc->sc_ioh)) { 169 aprint_error_dev(self, "sbfind failed\n"); 170 return; 171 } 172 173 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 174 mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_AUDIO); 175 176 sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 177 IST_EDGE, IPL_AUDIO, sbdsp_intr, sc); 178 179 sbattach(sc); 180 } 181
Indexes created Sat Sep 20 22:09:52 GMT 2025