joy_ofisa.c revision 1.17
1/* $NetBSD: joy_ofisa.c,v 1.17 2021/01/19 14:39:20 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1996, 1998, 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: joy_ofisa.c,v 1.17 2021/01/19 14:39:20 thorpej Exp $"); 34 35#include <sys/param.h> 36#include <sys/systm.h> 37#include <sys/kernel.h> 38#include <sys/device.h> 39 40#include <sys/bus.h> 41 42#include <dev/ofw/openfirm.h> 43#include <dev/isa/isavar.h> 44#include <dev/ofisa/ofisavar.h> 45 46#include <dev/ic/joyvar.h> 47 48#define JOY_NPORTS 1 /* XXX should be in a header file */ 49 50struct joy_ofisa_softc { 51 struct joy_softc sc_joy; 52 kmutex_t sc_lock; 53}; 54 55static int joy_ofisa_match(device_t, cfdata_t, void *); 56static void joy_ofisa_attach(device_t, device_t, void *); 57 58CFATTACH_DECL_NEW(joy_ofisa, sizeof(struct joy_ofisa_softc), 59 joy_ofisa_match, joy_ofisa_attach, NULL, NULL); 60 61static const struct device_compatible_entry compat_data[] = { 62 { .compat = "pnpPNP,b02f" }, /* generic joystick */ 63 { 0 } 64}; 65 66static int 67joy_ofisa_match(device_t parent, cfdata_t match, void *aux) 68{ 69 struct ofisa_attach_args *aa = aux; 70 71 return of_match_compat_data(aa->oba.oba_phandle, compat_data); 72} 73 74static void 75joy_ofisa_attach(device_t parent, device_t self, void *aux) 76{ 77 struct joy_ofisa_softc *osc = device_private(self); 78 struct joy_softc *sc = &osc->sc_joy; 79 struct ofisa_attach_args *aa = aux; 80 struct ofisa_reg_desc reg; 81 int n; 82 83 /* 84 * We're living on an OFW. We have to ask the OFW what our 85 * register property looks like. 86 * 87 * We expect: 88 * 89 * 1 i/o register region 90 */ 91 92 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 93 if (n != 1) { 94 aprint_error(": error getting register data\n"); 95 return; 96 } 97 if (reg.type != OFISA_REG_TYPE_IO) { 98 aprint_error(": register type not i/o\n"); 99 return; 100 } 101 if (reg.len != JOY_NPORTS) { 102 aprint_error(": weird register size (%lu, expected %d)\n", 103 (unsigned long)reg.len, JOY_NPORTS); 104 return; 105 } 106 107 sc->sc_iot = aa->iot; 108 sc->sc_dev = self; 109 110 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 111 aprint_error(": unable to map register space\n"); 112 return; 113 } 114 115 ofisa_print_model(NULL, aa->oba.oba_phandle); 116 117 mutex_init(&osc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 118 sc->sc_lock = &osc->sc_lock; 119 120 joyattach(sc); 121} 122