ess_isa.c revision 1.12
1 /* $NetBSD: ess_isa.c,v 1.12 2004/09/14 20:20:47 drochner 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 1.12 2004/09/14 20:20:47 drochner 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 #include "joy_ess.h" 55 56 #ifdef ESS_ISA_DEBUG 57 #define DPRINTF(x) printf x 58 #else 59 #define DPRINTF(x) 60 #endif 61 62 int ess_isa_probe __P((struct device *, struct cfdata *, void *)); 63 void ess_isa_attach __P((struct device *, struct device *, void *)); 64 65 CFATTACH_DECL(ess_isa, sizeof(struct ess_softc), 66 ess_isa_probe, ess_isa_attach, NULL, NULL); 67 68 int 69 ess_isa_probe(parent, match, aux) 70 struct device *parent; 71 struct cfdata *match; 72 void *aux; 73 { 74 int ret; 75 struct isa_attach_args *ia = aux; 76 struct ess_softc probesc, *sc= &probesc; 77 78 if (ia->ia_nio < 1) 79 return (0); 80 if (ia->ia_nirq < 1) 81 return (0); 82 if (ia->ia_ndrq < 1) 83 return (0); 84 85 if (ISA_DIRECT_CONFIG(ia)) 86 return (0); 87 88 memset(sc, 0, sizeof *sc); 89 90 sc->sc_ic = ia->ia_ic; 91 sc->sc_iot = ia->ia_iot; 92 sc->sc_iobase = ia->ia_io[0].ir_addr; 93 if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0, 94 &sc->sc_ioh)) { 95 DPRINTF(("ess_isa_probe: Couldn't map I/O region at %x, " 96 "size %x\n", sc->sc_iobase, ESS_NPORT)); 97 return 0; 98 } 99 100 sc->sc_audio1.irq = ia->ia_irq[0].ir_irq; 101 sc->sc_audio1.ist = IST_EDGE; 102 sc->sc_audio1.drq = ia->ia_drq[0].ir_drq; 103 sc->sc_audio2.irq = -1; 104 sc->sc_audio2.drq = (ia->ia_ndrq > 1) ? ia->ia_drq[1].ir_drq : -1; 105 106 ret = essmatch(sc); 107 108 bus_space_unmap(sc->sc_iot, sc->sc_ioh, ESS_NPORT); 109 110 if (ret) { 111 DPRINTF(("ess_isa_probe succeeded (score %d)\n", ret)); 112 ia->ia_nio = 1; 113 ia->ia_io[0].ir_size = ESS_NPORT; 114 115 ia->ia_nirq = 1; 116 117 if (ia->ia_ndrq > 1 && 118 ia->ia_drq[1].ir_drq != ISA_UNKNOWN_DRQ) 119 ia->ia_ndrq = 2; 120 else 121 ia->ia_ndrq = 1; 122 123 ia->ia_niomem = 0; 124 } else 125 DPRINTF(("ess_isa_probe failed\n")); 126 127 return ret; 128 } 129 130 void ess_isa_attach(parent, self, aux) 131 struct device *parent, *self; 132 void *aux; 133 { 134 struct ess_softc *sc = (void *)self; 135 struct isa_attach_args *ia = aux; 136 int enablejoy = 0; 137 138 printf("\n"); 139 140 sc->sc_ic = ia->ia_ic; 141 sc->sc_iot = ia->ia_iot; 142 sc->sc_iobase = ia->ia_io[0].ir_addr; 143 if (bus_space_map(sc->sc_iot, sc->sc_iobase, ESS_NPORT, 0, 144 &sc->sc_ioh)) { 145 DPRINTF(("ess_isa_attach: Couldn't map I/O region at %x, " 146 "size %x\n", sc->sc_iobase, ESS_NPORT)); 147 return; 148 } 149 150 sc->sc_audio1.irq = ia->ia_irq[0].ir_irq; 151 sc->sc_audio1.ist = IST_EDGE; 152 sc->sc_audio1.drq = ia->ia_drq[0].ir_drq; 153 sc->sc_audio2.irq = -1; 154 sc->sc_audio2.drq = ia->ia_ndrq > 1 ? ia->ia_drq[1].ir_drq : -1; 155 156 #if NJOY_ESS > 0 157 if (sc->sc_dev.dv_cfdata->cf_flags & 1) { 158 sc->sc_joy_iot = ia->ia_iot; 159 if (!bus_space_map(sc->sc_joy_iot, 0x201, 1, 0, 160 &sc->sc_joy_ioh)) 161 enablejoy = 1; 162 } 163 #endif 164 165 printf("%s", sc->sc_dev.dv_xname); 166 167 essattach(sc, enablejoy); 168 } 169
Indexes created Mon Sep 22 13:09:51 GMT 2025