joy_acpi.c revision 1.12
1/* $NetBSD: joy_acpi.c,v 1.12 2021/01/29 15:49:55 thorpej Exp $ */ 2 3/* 4 * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28/* 29 * ACPI joy(4) attachment based in lpt_acpi.c by Jared D. McNeill. 30 */ 31 32#include <sys/cdefs.h> 33__KERNEL_RCSID(0, "$NetBSD: joy_acpi.c,v 1.12 2021/01/29 15:49:55 thorpej Exp $"); 34 35#include <sys/param.h> 36#include <sys/device.h> 37#include <sys/systm.h> 38 39#include <dev/acpi/acpivar.h> 40 41#include <dev/ic/joyvar.h> 42 43static int joy_acpi_match(device_t, cfdata_t, void *); 44static void joy_acpi_attach(device_t, device_t, void *); 45 46struct joy_acpi_softc { 47 struct joy_softc sc_joy; 48 kmutex_t sc_lock; 49}; 50 51CFATTACH_DECL_NEW(joy_acpi, sizeof(struct joy_acpi_softc), joy_acpi_match, 52 joy_acpi_attach, NULL, NULL); 53 54/* 55 * Supported device IDs 56 */ 57 58static const struct device_compatible_entry compat_data[] = { 59 { .compat = "PNPB02F" }, /* Joystick/Game port */ 60 DEVICE_COMPAT_EOL 61}; 62 63/* 64 * joy_acpi_match: autoconf(9) match routine 65 */ 66static int 67joy_acpi_match(device_t parent, cfdata_t match, void *aux) 68{ 69 struct acpi_attach_args *aa = aux; 70 71 return acpi_compatible_match(aa, compat_data); 72} 73 74/* 75 * joy_acpi_attach: autoconf(9) attach routine 76 */ 77static void 78joy_acpi_attach(device_t parent, device_t self, void *aux) 79{ 80 struct joy_acpi_softc *asc = device_private(self); 81 struct joy_softc *sc = &asc->sc_joy; 82 struct acpi_attach_args *aa = aux; 83 struct acpi_resources res; 84 struct acpi_io *io; 85 ACPI_STATUS rv; 86 87 sc->sc_dev = self; 88 89 /* parse resources */ 90 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS", 91 &res, &acpi_resource_parse_ops_default); 92 if (ACPI_FAILURE(rv)) 93 return; 94 95 /* find our i/o registers */ 96 io = acpi_res_io(&res, 0); 97 if (io == NULL) { 98 aprint_error_dev(self, 99 "unable to find i/o register resource\n"); 100 goto out; 101 } 102 103 sc->sc_iot = aa->aa_iot; 104 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, 105 0, &sc->sc_ioh)) { 106 aprint_error_dev(self, "can't map i/o space\n"); 107 goto out; 108 } 109 110 mutex_init(&asc->sc_lock, MUTEX_DEFAULT, IPL_NONE); 111 sc->sc_lock = &asc->sc_lock; 112 113 joyattach(sc); 114 115 out: 116 acpi_resource_cleanup(&res); 117} 118