sb_ofisa.c revision 1.8
1/* $NetBSD: sb_ofisa.c,v 1.8 2002/09/27 20:39:35 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40#include <sys/cdefs.h> 41__KERNEL_RCSID(0, "$NetBSD: sb_ofisa.c,v 1.8 2002/09/27 20:39:35 thorpej Exp $"); 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/device.h> 46 47#include <machine/bus.h> 48#include <machine/intr.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/ofw/openfirm.h> 56#include <dev/isa/isavar.h> 57#include <dev/ofisa/ofisavar.h> 58 59#include <dev/isa/sbreg.h> 60#include <dev/isa/sbvar.h> 61#include <dev/isa/sbdspvar.h> 62 63int sb_ofisa_match __P((struct device *, struct cfdata *, void *)); 64void sb_ofisa_attach __P((struct device *, struct device *, void *)); 65 66const struct cfattach sb_ofisa_ca = { 67 sizeof(struct sbdsp_softc), sb_ofisa_match, sb_ofisa_attach 68}; 69 70int 71sb_ofisa_match(parent, cf, aux) 72 struct device *parent; 73 struct cfdata *cf; 74 void *aux; 75{ 76 struct ofisa_attach_args *aa = aux; 77 static const char *const compatible_strings[] = { 78 "pnpPNP,b000", /* generic SB 1.5 */ 79 "pnpPNP,b001", /* generic SB 2.0 */ 80 "pnpPNP,b002", /* generic SB Pro */ 81 "pnpPNP,b003", /* generic SB 16 */ 82 NULL, 83 }; 84 int rv = 0; 85 86 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) { 87 /* 88 * Use a low match priority so that a more specific driver 89 * can match, e.g. a native ESS driver. 90 */ 91 rv = 1; 92 } 93 94 return (rv); 95} 96 97void 98sb_ofisa_attach(parent, self, aux) 99 struct device *parent, *self; 100 void *aux; 101{ 102 struct sbdsp_softc *sc = (void *)self; 103 struct ofisa_attach_args *aa = aux; 104 struct ofisa_reg_desc reg; 105 struct ofisa_intr_desc intr; 106 struct ofisa_dma_desc dma[2]; 107 int n, ndrq; 108 char *model; 109 110 /* 111 * We're living on an OFW. We have to ask the OFW what our 112 * registers and interrupts properties look like. 113 * 114 * We expect: 115 * 116 * 1 i/o register region 117 * 1 interrupt 118 * 1 or 2 dma channels 119 */ 120 121 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 122 if (n != 1) { 123 printf(": error getting register data\n"); 124 return; 125 } 126 if (reg.type != OFISA_REG_TYPE_IO) { 127 printf(": register type not i/o\n"); 128 return; 129 } 130 if (reg.len != SB_NPORT && reg.len != SBP_NPORT) { 131 printf(": weird register size (%lu, expected %d or %d)\n", 132 (unsigned long)reg.len, SB_NPORT, SBP_NPORT); 133 return; 134 } 135 136 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 137 if (n != 1) { 138 printf(": error getting interrupt data\n"); 139 return; 140 } 141 142 ndrq = ofisa_dma_get(aa->oba.oba_phandle, dma, 2); 143 if (ndrq != 1 && ndrq != 2) { 144 printf(": error getting DMA data\n"); 145 return; 146 } 147 148 sc->sc_ic = aa->ic; 149 150 sc->sc_iot = aa->iot; 151 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 152 printf(": unable to map register space\n"); 153 return; 154 } 155 156 /* XXX These are only for setting chip configuration registers. */ 157 sc->sc_iobase = reg.addr; 158 sc->sc_irq = intr.irq; 159 160 sc->sc_drq8 = DRQUNK; 161 sc->sc_drq16 = DRQUNK; 162 163 for (n = 0; n < ndrq; n++) { 164 /* XXX check mode? */ 165 switch (dma[n].width) { 166 case 8: 167 if (sc->sc_drq8 == DRQUNK) 168 sc->sc_drq8 = dma[n].drq; 169 break; 170 case 16: 171 if (sc->sc_drq16 == DRQUNK) 172 sc->sc_drq16 = dma[n].drq; 173 break; 174 default: 175 printf(": weird DMA width %d\n", dma[n].width); 176 return; 177 } 178 } 179 180 if (sc->sc_drq8 == DRQUNK) { 181 printf(": no 8-bit DMA channel\n"); 182 return; 183 } 184 185 if (sbmatch(sc) == 0) { 186 printf(": sbmatch failed\n"); 187 return; 188 } 189 190 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, IST_EDGE, IPL_AUDIO, 191 sbdsp_intr, sc); 192 193 n = OF_getproplen(aa->oba.oba_phandle, "model"); 194 if (n > 0) { 195 model = alloca(n); 196 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) == n) 197 printf(": %s\n%s", model, sc->sc_dev.dv_xname); 198 } 199 200 sbattach(sc); 201} 202