1 /* $NetBSD: joy_isa.c,v 1.4 2002/10/02 03:10:48 thorpej 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 1.4 2002/10/02 03:10:48 thorpej 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 CFATTACH_DECL(joy_isa, sizeof(struct joy_softc), 55 joy_isa_probe, joy_isa_attach, NULL, NULL); 56 57 int 58 joy_isa_probe(parent, match, aux) 59 struct device *parent; 60 struct cfdata *match; 61 void *aux; 62 { 63 struct isa_attach_args *ia = aux; 64 bus_space_tag_t iot = ia->ia_iot; 65 bus_space_handle_t ioh; 66 int rval = 0; 67 68 if (ia->ia_nio < 1) 69 return (0); 70 71 if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 72 return (0); 73 74 if (bus_space_map(iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, &ioh)) 75 return (0); 76 77 #ifdef WANT_JOYSTICK_CONNECTED 78 bus_space_write_1(iot, ioh, 0, 0xff); 79 DELAY(10000); /* 10 ms delay */ 80 if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f) 81 rval = 1; 82 #else 83 rval = 1; 84 #endif 85 86 bus_space_unmap(iot, ioh, JOY_NPORTS); 87 88 if (rval) { 89 ia->ia_nio = 1; 90 ia->ia_io[0].ir_size = JOY_NPORTS; 91 92 ia->ia_niomem = 0; 93 ia->ia_nirq = 0; 94 ia->ia_ndrq = 0; 95 } 96 return (rval); 97 } 98 99 void 100 joy_isa_attach(parent, self, aux) 101 struct device *parent, *self; 102 void *aux; 103 { 104 struct joy_softc *sc = (struct joy_softc *) self; 105 struct isa_attach_args *ia = aux; 106 107 printf("\n"); 108 109 sc->sc_iot = ia->ia_iot; 110 111 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, 112 &sc->sc_ioh)) { 113 printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 114 return; 115 } 116 117 joyattach(sc); 118 } 119