1 /* $NetBSD: joy_isa.c,v 1.1 2002/02/02 18:37:45 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Jean-Marc Zucconi 5 * All rights reserved. 6 * 7 * Ported to NetBSD by Matthieu Herrb <matthieu@laas.fr>. Additional 8 * modification by Jason R. Thorpe <thorpej@NetBSD.ORG>. 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 * in this position and unchanged. 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. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: joy_isa.c,v 1.1 2002/02/02 18:37:45 jdolecek Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 43 #include <machine/bus.h> 44 45 #include <dev/isa/isavar.h> 46 47 #include <dev/ic/joyvar.h> 48 49 #define JOY_NPORTS 1 50 51 int joy_isa_probe __P((struct device *, struct cfdata *, void *)); 52 void joy_isa_attach __P((struct device *, struct device *, void *)); 53 54 struct cfattach joy_isa_ca = { 55 sizeof(struct joy_softc), joy_isa_probe, joy_isa_attach 56 }; 57 58 int 59 joy_isa_probe(parent, match, aux) 60 struct device *parent; 61 struct cfdata *match; 62 void *aux; 63 { 64 struct isa_attach_args *ia = aux; 65 bus_space_tag_t iot = ia->ia_iot; 66 bus_space_handle_t ioh; 67 int rval = 0; 68 69 if (ia->ia_nio < 1) 70 return (0); 71 72 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 73 return (0); 74 75 if (bus_space_map(iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, &ioh)) 76 return (0); 77 78 #ifdef WANT_JOYSTICK_CONNECTED 79 bus_space_write_1(iot, ioh, 0, 0xff); 80 DELAY(10000); /* 10 ms delay */ 81 if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f) 82 rval = 1; 83 #else 84 rval = 1; 85 #endif 86 87 bus_space_unmap(iot, ioh, JOY_NPORTS); 88 89 if (rval) { 90 ia->ia_nio = 1; 91 ia->ia_io[0].ir_size = JOY_NPORTS; 92 93 ia->ia_niomem = 0; 94 ia->ia_nirq = 0; 95 ia->ia_ndrq = 0; 96 } 97 return (rval); 98 } 99 100 void 101 joy_isa_attach(parent, self, aux) 102 struct device *parent, *self; 103 void *aux; 104 { 105 struct joy_softc *sc = (struct joy_softc *) self; 106 struct isa_attach_args *ia = aux; 107 108 printf("\n"); 109 110 sc->sc_iot = ia->ia_iot; 111 112 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, 113 &sc->sc_ioh)) { 114 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 115 return; 116 } 117 118 joyattach(sc); 119 } 120