1/* $NetBSD: joy_isa.c,v 1.13 2011/11/23 23:07:32 jmcneill 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 1.13 2011/11/23 23:07:32 jmcneill 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 <sys/bus.h> 44 45#include <dev/isa/isavar.h> 46 47#include <dev/ic/joyvar.h> 48 49#define JOY_NPORTS 1 50 51struct joy_isa_softc { 52 struct joy_softc sc_joy; 53 kmutex_t sc_lock; 54}; 55 56static int joy_isa_probe(device_t, cfdata_t, void *); 57static void joy_isa_attach(device_t, device_t, void *); 58 59CFATTACH_DECL_NEW(joy_isa, sizeof(struct joy_isa_softc), 60 joy_isa_probe, joy_isa_attach, NULL, NULL); 61 62static int 63joy_isa_probe(device_t parent, cfdata_t match, void *aux) 64{ 65 struct isa_attach_args *ia = aux; 66 bus_space_tag_t iot = ia->ia_iot; 67 bus_space_handle_t ioh; 68 int rval = 0; 69 70 if (ia->ia_nio < 1) 71 return 0; 72 73 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 74 return 0; 75 76 if (bus_space_map(iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, &ioh)) 77 return 0; 78 79#ifdef WANT_JOYSTICK_CONNECTED 80 bus_space_write_1(iot, ioh, 0, 0xff); 81 DELAY(10000); /* 10 ms delay */ 82 if ((bus_space_read_1(iot, ioh, 0) & 0x0f) != 0x0f) 83 rval = 1; 84#else 85 rval = 1; 86#endif 87 88 bus_space_unmap(iot, ioh, JOY_NPORTS); 89 90 if (rval) { 91 ia->ia_nio = 1; 92 ia->ia_io[0].ir_size = JOY_NPORTS; 93 94 ia->ia_niomem = 0; 95 ia->ia_nirq = 0; 96 ia->ia_ndrq = 0; 97 } 98 return rval; 99} 100 101static void 102joy_isa_attach(device_t parent, device_t self, void *aux) 103{ 104 struct joy_isa_softc *isc = device_private(self); 105 struct joy_softc *sc = &isc->sc_joy; 106 struct isa_attach_args *ia = aux; 107 108 aprint_normal("\n"); 109 110 sc->sc_iot = ia->ia_iot; 111 sc->sc_dev = self; 112 113 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, JOY_NPORTS, 0, 114 &sc->sc_ioh)) { 115 aprint_error_dev(self, "can't map i/o space\n"); 116 return; 117 } 118 119 mutex_init(&isc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 120 sc->sc_lock = &isc->sc_lock; 121 122 joyattach(sc); 123} 124