apple_smc_acpi.c revision 1.3.10.3
1 1.3.10.2 tls /* $NetBSD: apple_smc_acpi.c,v 1.3.10.3 2017/12/03 11:36:58 jdolecek Exp $ */ 2 1.3.10.2 tls 3 1.3.10.2 tls /* 4 1.3.10.2 tls * Apple System Management Controller: ACPI Attachment 5 1.3.10.2 tls */ 6 1.3.10.2 tls 7 1.3.10.2 tls /*- 8 1.3.10.3 jdolecek * Copyright (c) 2013 The NetBSD Foundation, Inc. 9 1.3.10.2 tls * All rights reserved. 10 1.3.10.2 tls * 11 1.3.10.3 jdolecek * This code is derived from software contributed to The NetBSD Foundation 12 1.3.10.3 jdolecek * by Taylor R. Campbell. 13 1.3.10.3 jdolecek * 14 1.3.10.2 tls * Redistribution and use in source and binary forms, with or without 15 1.3.10.2 tls * modification, are permitted provided that the following conditions 16 1.3.10.2 tls * are met: 17 1.3.10.2 tls * 1. Redistributions of source code must retain the above copyright 18 1.3.10.2 tls * notice, this list of conditions and the following disclaimer. 19 1.3.10.2 tls * 2. Redistributions in binary form must reproduce the above copyright 20 1.3.10.2 tls * notice, this list of conditions and the following disclaimer in the 21 1.3.10.2 tls * documentation and/or other materials provided with the distribution. 22 1.3.10.2 tls * 23 1.3.10.3 jdolecek * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 1.3.10.3 jdolecek * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 1.3.10.3 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 1.3.10.3 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 1.3.10.3 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 1.3.10.3 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 1.3.10.3 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 1.3.10.3 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 1.3.10.3 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 1.3.10.3 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 1.3.10.3 jdolecek * POSSIBILITY OF SUCH DAMAGE. 34 1.3.10.2 tls */ 35 1.3.10.2 tls 36 1.3.10.2 tls #include <sys/cdefs.h> 37 1.3.10.2 tls __KERNEL_RCSID(0, "$NetBSD: apple_smc_acpi.c,v 1.3.10.3 2017/12/03 11:36:58 jdolecek Exp $"); 38 1.3.10.2 tls 39 1.3.10.2 tls #include <sys/types.h> 40 1.3.10.2 tls #include <sys/param.h> 41 1.3.10.2 tls #include <sys/bus.h> 42 1.3.10.2 tls #include <sys/module.h> 43 1.3.10.2 tls 44 1.3.10.2 tls #include <dev/acpi/acpireg.h> 45 1.3.10.2 tls #include <dev/acpi/acpivar.h> 46 1.3.10.2 tls 47 1.3.10.2 tls #include <dev/ic/apple_smcreg.h> 48 1.3.10.2 tls #include <dev/ic/apple_smcvar.h> 49 1.3.10.2 tls 50 1.3.10.2 tls #define _COMPONENT ACPI_RESOURCE_COMPONENT 51 1.3.10.2 tls ACPI_MODULE_NAME ("apple_smc_acpi") 52 1.3.10.2 tls 53 1.3.10.2 tls struct apple_smc_acpi_softc { 54 1.3.10.2 tls struct apple_smc_tag sc_smc; 55 1.3.10.2 tls }; 56 1.3.10.2 tls 57 1.3.10.2 tls static int apple_smc_acpi_match(device_t, cfdata_t, void *); 58 1.3.10.2 tls static void apple_smc_acpi_attach(device_t, device_t, void *); 59 1.3.10.2 tls static int apple_smc_acpi_detach(device_t, int); 60 1.3.10.2 tls static int apple_smc_acpi_rescan(device_t, const char *, const int *); 61 1.3.10.2 tls static void apple_smc_acpi_child_detached(device_t, device_t); 62 1.3.10.2 tls 63 1.3.10.2 tls CFATTACH_DECL2_NEW(apple_smc_acpi, sizeof(struct apple_smc_acpi_softc), 65 1.3.10.2 tls apple_smc_acpi_match, 66 1.3.10.2 tls apple_smc_acpi_attach, 67 1.3.10.2 tls apple_smc_acpi_detach, 68 1.3.10.2 tls NULL /* activate */, 69 1.3.10.2 tls apple_smc_acpi_rescan, 70 1.3.10.2 tls apple_smc_acpi_child_detached); 71 1.3.10.2 tls 72 1.3.10.2 tls static const char *const apple_smc_ids[] = { 73 1.3.10.2 tls "APP0001", 74 1.3.10.2 tls NULL 75 1.3.10.2 tls }; 76 1.3.10.2 tls 77 1.3.10.2 tls static int 78 1.3.10.2 tls apple_smc_acpi_match(device_t parent, cfdata_t match, void *aux) 79 1.3.10.2 tls { 80 1.3.10.2 tls struct acpi_attach_args *aa = aux; 81 1.3.10.2 tls 82 1.3.10.2 tls if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 83 1.3.10.2 tls return 0; 84 1.3.10.2 tls 85 1.3.10.2 tls if (!acpi_match_hid(aa->aa_node->ad_devinfo, apple_smc_ids)) 86 1.3.10.2 tls return 0; 87 1.3.10.2 tls 88 1.3.10.2 tls return 1; 89 1.3.10.2 tls } 90 1.3.10.2 tls 91 1.3.10.2 tls static void 92 1.3.10.2 tls apple_smc_acpi_attach(device_t parent, device_t self, void *aux) 93 1.3.10.2 tls { 94 1.3.10.2 tls struct apple_smc_acpi_softc *sc = device_private(self); 95 1.3.10.2 tls struct apple_smc_tag *smc = &sc->sc_smc; 96 1.3.10.2 tls struct acpi_attach_args *aa = aux; 97 1.3.10.2 tls struct acpi_resources res; 98 1.3.10.2 tls struct acpi_io *io; 99 1.3.10.2 tls int rv; 100 1.3.10.2 tls 101 1.3.10.2 tls smc->smc_dev = self; 102 1.3.10.2 tls 103 1.3.10.2 tls aprint_normal("\n"); 104 1.3.10.2 tls aprint_naive("\n"); 105 1.3.10.2 tls 106 1.3.10.2 tls rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 107 1.3.10.2 tls &res, &acpi_resource_parse_ops_default); 108 1.3.10.2 tls if (ACPI_FAILURE(rv)) { 109 1.3.10.2 tls aprint_error_dev(self, "couldn't parse SMC resources: %s\n", 110 1.3.10.2 tls AcpiFormatException(rv)); 111 1.3.10.2 tls goto out0; 112 1.3.10.2 tls } 113 1.3.10.2 tls 114 1.3.10.2 tls io = acpi_res_io(&res, 0); 115 1.3.10.2 tls if (io == NULL) { 116 1.3.10.2 tls aprint_error_dev(self, "no I/O resource\n"); 117 1.3.10.2 tls goto out1; 118 1.3.10.2 tls } 119 1.3.10.2 tls 120 1.3.10.2 tls if (io->ar_length < APPLE_SMC_REGSIZE) { 121 1.3.10.2 tls aprint_error_dev(self, "I/O resources too small: %"PRId32"\n", 122 1.3.10.2 tls io->ar_length); 123 1.3.10.2 tls goto out1; 124 1.3.10.2 tls } 125 1.3.10.2 tls 126 1.3.10.2 tls if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, 127 1.3.10.2 tls &smc->smc_bsh) != 0) { 128 1.3.10.2 tls aprint_error_dev(self, "unable to map I/O registers\n"); 129 1.3.10.2 tls goto out1; 130 1.3.10.2 tls } 131 1.3.10.2 tls 132 1.3.10.2 tls smc->smc_bst = aa->aa_iot; 133 1.3.10.2 tls smc->smc_size = io->ar_length; 134 1.3.10.2 tls 135 1.3.10.2 tls apple_smc_attach(smc); 136 1.3.10.2 tls 137 1.3.10.2 tls out1: acpi_resource_cleanup(&res); 138 1.3.10.2 tls out0: return; 139 1.3.10.2 tls } 140 1.3.10.2 tls 141 1.3.10.2 tls static int 142 1.3.10.2 tls apple_smc_acpi_detach(device_t self, int flags) 143 1.3.10.2 tls { 144 1.3.10.2 tls struct apple_smc_acpi_softc *sc = device_private(self); 145 1.3.10.2 tls struct apple_smc_tag *smc = &sc->sc_smc; 146 1.3.10.2 tls int error; 147 1.3.10.2 tls 148 1.3.10.2 tls if (smc->smc_size != 0) { 149 1.3.10.2 tls error = apple_smc_detach(smc, flags); 150 1.3.10.2 tls if (error) 151 1.3.10.2 tls return error; 152 1.3.10.2 tls 153 1.3.10.2 tls bus_space_unmap(smc->smc_bst, smc->smc_bsh, smc->smc_size); 154 1.3.10.2 tls smc->smc_size = 0; 155 1.3.10.2 tls } 156 1.3.10.2 tls 157 1.3.10.2 tls return 0; 158 1.3.10.2 tls } 159 1.3.10.2 tls 160 1.3.10.2 tls static int 161 1.3.10.2 tls apple_smc_acpi_rescan(device_t self, const char *ifattr, const int *locs) 162 1.3.10.2 tls { 163 1.3.10.2 tls struct apple_smc_acpi_softc *const sc = device_private(self); 164 1.3.10.2 tls 165 1.3.10.2 tls return apple_smc_rescan(&sc->sc_smc, ifattr, locs); 166 1.3.10.2 tls } 167 1.3.10.2 tls 168 1.3.10.2 tls static void 169 1.3.10.2 tls apple_smc_acpi_child_detached(device_t self, device_t child) 170 1.3.10.2 tls { 171 1.3.10.2 tls struct apple_smc_acpi_softc *const sc = device_private(self); 172 1.3.10.2 tls 173 1.3.10.2 tls apple_smc_child_detached(&sc->sc_smc, child); 174 1.3.10.2 tls } 175 1.3.10.2 tls 176 1.3.10.2 tls MODULE(MODULE_CLASS_DRIVER, apple_smc_acpi, "apple_smc"); 178 1.3.10.2 tls 179 1.3.10.2 tls #ifdef _MODULE 180 1.3.10.2 tls #include "ioconf.c" 181 1.3.10.2 tls #endif 182 1.3.10.2 tls 183 1.3.10.2 tls static int 184 1.3.10.2 tls apple_smc_acpi_modcmd(modcmd_t cmd, void *arg __unused) 185 1.3.10.2 tls { 186 1.3.10.2 tls #ifdef _MODULE 187 1.3.10.2 tls int error; 188 1.3.10.2 tls #endif 189 1.3.10.2 tls 190 1.3.10.2 tls switch (cmd) { 191 1.3.10.2 tls case MODULE_CMD_INIT: 192 1.3.10.2 tls #ifdef _MODULE 193 1.3.10.2 tls error = config_init_component(cfdriver_ioconf_apple_smc_acpi, 194 1.3.10.2 tls cfattach_ioconf_apple_smc_acpi, 195 1.3.10.2 tls cfdata_ioconf_apple_smc_acpi); 196 1.3.10.2 tls if (error) 197 1.3.10.2 tls return error; 198 1.3.10.2 tls #endif 199 1.3.10.2 tls return 0; 200 1.3.10.2 tls 201 1.3.10.2 tls case MODULE_CMD_FINI: 202 1.3.10.2 tls #ifdef _MODULE 203 1.3.10.2 tls error = config_fini_component(cfdriver_ioconf_apple_smc_acpi, 204 1.3.10.2 tls cfattach_ioconf_apple_smc_acpi, 205 1.3.10.2 tls cfdata_ioconf_apple_smc_acpi); 206 1.3.10.2 tls if (error) 207 1.3.10.2 tls return error; 208 1.3.10.2 tls #endif 209 1.3.10.2 tls return 0; 210 1.3.10.2 tls 211 1.3.10.2 tls default: 212 1.3.10.2 tls return ENOTTY; 213 } 214 } 215
Indexes created Mon Oct 20 11:09:49 GMT 2025