1 /* $NetBSD: joy_ofisa.c,v 1.14 2008/04/28 20:23:54 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1998 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 1.14 2008/04/28 20:23:54 martin 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 50 static int joy_ofisa_match(device_t, cfdata_t, void *); 51 static void joy_ofisa_attach(device_t, device_t, void *); 52 53 CFATTACH_DECL_NEW(joy_ofisa, sizeof(struct joy_softc), 54 joy_ofisa_match, joy_ofisa_attach, NULL, NULL); 55 56 static int 57 joy_ofisa_match(device_t parent, cfdata_t match, void *aux) 58 { 59 struct ofisa_attach_args *aa = aux; 60 static const char *const compatible_strings[] = { 61 "pnpPNP,b02f", /* generic joystick */ 62 NULL, 63 }; 64 int rv = 0; 65 66 if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1) 67 rv = 1; 68 return rv; 69 } 70 71 static void 72 joy_ofisa_attach(device_t parent, device_t self, void *aux) 73 { 74 struct joy_softc *sc = device_private(self); 75 struct ofisa_attach_args *aa = aux; 76 struct ofisa_reg_desc reg; 77 char *model = NULL; 78 int n; 79 80 /* 81 * We're living on an OFW. We have to ask the OFW what our 82 * register property looks like. 83 * 84 * We expect: 85 * 86 * 1 i/o register region 87 */ 88 89 n = ofisa_reg_get(aa->oba.oba_phandle, ®, 1); 90 if (n != 1) { 91 aprint_error(": error getting register data\n"); 92 return; 93 } 94 if (reg.type != OFISA_REG_TYPE_IO) { 95 aprint_error(": register type not i/o\n"); 96 return; 97 } 98 if (reg.len != JOY_NPORTS) { 99 aprint_error(": weird register size (%lu, expected %d)\n", 100 (unsigned long)reg.len, JOY_NPORTS); 101 return; 102 } 103 104 sc->sc_iot = aa->iot; 105 sc->sc_dev = self; 106 107 if (bus_space_map(sc->sc_iot, reg.addr, reg.len, 0, &sc->sc_ioh)) { 108 aprint_error(": unable to map register space\n"); 109 return; 110 } 111 112 n = OF_getproplen(aa->oba.oba_phandle, "model"); 113 if (n > 0) { 114 model = alloca(n); 115 if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n) 116 model = NULL; /* safe; alloca */ 117 } 118 if (model != NULL) 119 aprint_normal(": %s", model); 120 aprint_normal("\n"); 121 122 joyattach(sc); 123 } 124