1 /* $NetBSD: sb_ofisa.c,v 1.16 2008/03/15 21:09:02 cube 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 1.16 2008/03/15 21:09:02 cube Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 47 #include <sys/bus.h> 48 #include <sys/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 63 int sb_ofisa_match(device_t, cfdata_t, void *); 64 void sb_ofisa_attach(device_t, device_t, void *); 65 66 CFATTACH_DECL_NEW(sb_ofisa, sizeof(struct sbdsp_softc), 67 sb_ofisa_match, sb_ofisa_attach, NULL, NULL); 68 69 int 70 sb_ofisa_match(device_t parent, cfdata_t cf, void *aux) 71 { 72 struct ofisa_attach_args *aa = aux; 73 static const char *const compatible_strings[] = { 74 "pnpPNP,b000", /* generic SB 1.5 */ 75 "pnpPNP,b001", /* generic SB 2.0 */ 76 "pnpPNP,b002", /* generic SB Pro */ 77 "pnpPNP,b003", /* generic SB 16 */ 78 NULL, 79 }; 80 int rv = 0; 81 82 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) { 83 /* 84 * Use a low match priority so that a more specific driver 85 * can match, e.g. a native ESS driver. 86 */ 87 rv = 1; 88 } 89 90 return (rv); 91 } 92 93 void 94 sb_ofisa_attach(device_t parent, device_t self, void *aux) 95 { 96 struct sbdsp_softc *sc = device_private(self); 97 struct ofisa_attach_args *aa = aux; 98 struct ofisa_reg_desc reg; 99 struct ofisa_intr_desc intr; 100 struct ofisa_dma_desc dma[2]; 101 int n, ndrq; 102 char *model; 103 104 sc->sc_dev = self; 105 106 /* 107 * We're living on an OFW. We have to ask the OFW what our 108 * registers and interrupts properties look like. 109 * 110 * We expect: 111 * 112 * 1 i/o register region 113 * 1 interrupt 114 * 1 or 2 DMA channels 115 */ 116 117 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 118 if (n != 1) { 119 printf(": error getting register data\n"); 120 return; 121 } 122 if (reg.type != OFISA_REG_TYPE_IO) { 123 printf(": register type not i/o\n"); 124 return; 125 } 126 if (reg.len != SB_NPORT && reg.len != SBP_NPORT) { 127 printf(": weird register size (%lu, expected %d or %d)\n", 128 (unsigned long)reg.len, SB_NPORT, SBP_NPORT); 129 return; 130 } 131 132 n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1); 133 if (n != 1) { 134 printf(": error getting interrupt data\n"); 135 return; 136 } 137 138 ndrq = ofisa_dma_get(aa->oba.oba_phandle, dma, 2); 139 if (ndrq != 1 && ndrq != 2) { 140 printf(": error getting DMA data\n"); 141 return; 142 } 143 144 sc->sc_ic = aa->ic; 145 146 sc->sc_iot = aa->iot; 147 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 148 aprint_error(": unable to map register space\n"); 149 return; 150 } 151 152 /* XXX These are only for setting chip configuration registers. */ 153 sc->sc_iobase = reg.addr; 154 sc->sc_irq = intr.irq; 155 156 sc->sc_drq8 = DRQUNK; 157 sc->sc_drq16 = DRQUNK; 158 159 for (n = 0; n < ndrq; n++) { 160 /* XXX check mode? */ 161 switch (dma[n].width) { 162 case 8: 163 if (sc->sc_drq8 == DRQUNK) 164 sc->sc_drq8 = dma[n].drq; 165 break; 166 case 16: 167 if (sc->sc_drq16 == DRQUNK) 168 sc->sc_drq16 = dma[n].drq; 169 break; 170 default: 171 aprint_error(": weird DMA width %d\n", dma[n].width); 172 return; 173 } 174 } 175 176 if (sc->sc_drq8 == DRQUNK) { 177 aprint_error(": no 8-bit DMA channel\n"); 178 return; 179 } 180 181 if (sbmatch(sc) == 0) { 182 aprint_error(": sbmatch failed\n"); 183 return; 184 } 185 186 sc->sc_ih = isa_intr_establish(aa->ic, intr.irq, IST_EDGE, IPL_AUDIO, 187 sbdsp_intr, sc); 188 189 n = OF_getproplen(aa->oba.oba_phandle, "model"); 190 if (n > 0) { 191 model = alloca(n); 192 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) == n) 193 aprint_normal(": %s\n%s", model, device_xname(self)); 194 } 195 196 sbattach(sc); 197 } 198