1 /* $NetBSD: ess_isa.c,v 1.7 2002/01/07 21:47:05 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Nathan J. Williams. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: ess_isa.c,v 1.7 2002/01/07 21:47:05 thorpej Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 46 #include <machine/cpu.h> 47 #include <machine/bus.h> 48 49 #include <dev/isa/isavar.h> 50 51 #include <dev/isa/essreg.h> 52 #include <dev/isa/essvar.h> 53 54 #ifdef ESS_ISA_DEBUG 55 #define DPRINTF(x) printf x 56 #else 57 #define DPRINTF(x) 58 #endif 59 60 int ess_isa_probe __P((struct device *, struct cfdata *, void *)); 61 void ess_isa_attach __P((struct device *, struct device *, void *)); 62 63 struct cfattach ess_isa_ca = { 64 sizeof(struct ess_softc), ess_isa_probe, ess_isa_attach 65 }; 66 67 int 68 ess_isa_probe(parent, match, aux) 69 struct device *parent; 70 struct cfdata *match; 71 void *aux; 72 { 73 int ret; 74 struct isa_attach_args *ia = aux; 75 struct ess_softc probesc, *sc= &probesc; 76 77 if (ia->ia_nio < 1) 78 return (0); 79 if (ia->ia_nirq < 1) 80 return (0); 81 if (ia->ia_ndrq < 1) 82 return (0); 83 84 if (ISA_DIRECT_CONFIG(ia)) 85 return (0); 86 87 memset(sc, 0, sizeof *sc); 88 89 sc->sc_ic = ia->ia_ic; 90 sc->sc_iot = ia->ia_iot; 91 sc->sc_iobase = ia->ia_io[0].ir_addr; 92 if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0, 93 &sc->sc_ioh)) { 94 DPRINTF(("ess_isa_probe: Couldn't map I/O region at %x, " 95 "size %x\n", sc->sc_iobase, ESS_NPORT)); 96 return 0; 97 } 98 99 sc->sc_audio1.irq = ia->ia_irq[0].ir_irq; 100 sc->sc_audio1.ist = IST_EDGE; 101 sc->sc_audio1.drq = ia->ia_drq[0].ir_drq; 102 sc->sc_audio2.irq = -1; 103 sc->sc_audio2.drq = (ia->ia_ndrq > 1) ? ia->ia_drq[1].ir_drq : -1; 104 105 ret = essmatch(sc); 106 107 bus_space_unmap(sc->sc_iot, sc->sc_ioh, ESS_NPORT); 108 109 if (ret) { 110 DPRINTF(("ess_isa_probe succeeded (score %d)\n", ret)); 111 ia->ia_nio = 1; 112 ia->ia_io[0].ir_size = ESS_NPORT; 113 114 ia->ia_nirq = 1; 115 116 if (ia->ia_ndrq > 1 && 117 ia->ia_drq[1].ir_drq != ISACF_DRQ_DEFAULT) 118 ia->ia_ndrq = 2; 119 else 120 ia->ia_ndrq = 1; 121 122 ia->ia_niomem = 0; 123 } else 124 DPRINTF(("ess_isa_probe failed\n")); 125 126 return ret; 127 } 128 129 void ess_isa_attach(parent, self, aux) 130 struct device *parent, *self; 131 void *aux; 132 { 133 struct ess_softc *sc = (void *)self; 134 struct isa_attach_args *ia = aux; 135 136 printf("\n"); 137 138 sc->sc_ic = ia->ia_ic; 139 sc->sc_iot = ia->ia_iot; 140 sc->sc_iobase = ia->ia_io[0].ir_addr; 141 if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0, 142 &sc->sc_ioh)) { 143 DPRINTF(("ess_isa_attach: Couldn't map I/O region at %x, " 144 "size %x\n", sc->sc_iobase, ESS_NPORT)); 145 return; 146 } 147 148 sc->sc_audio1.irq = ia->ia_irq[0].ir_irq; 149 sc->sc_audio1.ist = IST_EDGE; 150 sc->sc_audio1.drq = ia->ia_drq[0].ir_drq; 151 sc->sc_audio2.irq = -1; 152 sc->sc_audio2.drq = ia->ia_ndrq > 1 ? ia->ia_drq[1].ir_drq : -1; 153 154 printf("%s", sc->sc_dev.dv_xname); 155 156 essattach(sc); 157 } 158