apple_smc_acpi.c revision 1.3.10.2
1 1.3.10.2 tls /* $NetBSD: apple_smc_acpi.c,v 1.3.10.2 2014/08/20 00:03:35 tls 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 1.3.10.2 tls * Copyright (c) 2013 Taylor R. Campbell 9 1.3.10.2 tls * All rights reserved. 10 1.3.10.2 tls * 11 1.3.10.2 tls * Redistribution and use in source and binary forms, with or without 12 1.3.10.2 tls * modification, are permitted provided that the following conditions 13 1.3.10.2 tls * are met: 14 1.3.10.2 tls * 1. Redistributions of source code must retain the above copyright 15 1.3.10.2 tls * notice, this list of conditions and the following disclaimer. 16 1.3.10.2 tls * 2. Redistributions in binary form must reproduce the above copyright 17 1.3.10.2 tls * notice, this list of conditions and the following disclaimer in the 18 1.3.10.2 tls * documentation and/or other materials provided with the distribution. 19 1.3.10.2 tls * 20 1.3.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 1.3.10.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 1.3.10.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 1.3.10.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 1.3.10.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 1.3.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 1.3.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 1.3.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 1.3.10.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 1.3.10.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 1.3.10.2 tls * SUCH DAMAGE. 31 1.3.10.2 tls */ 32 1.3.10.2 tls 33 1.3.10.2 tls #include <sys/cdefs.h> 34 1.3.10.2 tls __KERNEL_RCSID(0, "$NetBSD: apple_smc_acpi.c,v 1.3.10.2 2014/08/20 00:03:35 tls Exp $"); 35 1.3.10.2 tls 36 1.3.10.2 tls #include <sys/types.h> 37 1.3.10.2 tls #include <sys/param.h> 38 1.3.10.2 tls #include <sys/bus.h> 39 1.3.10.2 tls #include <sys/module.h> 40 1.3.10.2 tls 41 1.3.10.2 tls #include <dev/acpi/acpireg.h> 42 1.3.10.2 tls #include <dev/acpi/acpivar.h> 43 1.3.10.2 tls 44 1.3.10.2 tls #include <dev/ic/apple_smcreg.h> 45 1.3.10.2 tls #include <dev/ic/apple_smcvar.h> 46 1.3.10.2 tls 47 1.3.10.2 tls #define _COMPONENT ACPI_RESOURCE_COMPONENT 48 1.3.10.2 tls ACPI_MODULE_NAME ("apple_smc_acpi") 49 1.3.10.2 tls 50 1.3.10.2 tls struct apple_smc_acpi_softc { 51 1.3.10.2 tls struct apple_smc_tag sc_smc; 52 1.3.10.2 tls }; 53 1.3.10.2 tls 54 1.3.10.2 tls static int apple_smc_acpi_match(device_t, cfdata_t, void *); 55 1.3.10.2 tls static void apple_smc_acpi_attach(device_t, device_t, void *); 56 1.3.10.2 tls static int apple_smc_acpi_detach(device_t, int); 57 1.3.10.2 tls static int apple_smc_acpi_rescan(device_t, const char *, const int *); 58 1.3.10.2 tls static void apple_smc_acpi_child_detached(device_t, device_t); 59 1.3.10.2 tls 60 1.3.10.2 tls CFATTACH_DECL2_NEW(apple_smc_acpi, sizeof(struct apple_smc_acpi_softc), 62 1.3.10.2 tls apple_smc_acpi_match, 63 1.3.10.2 tls apple_smc_acpi_attach, 64 1.3.10.2 tls apple_smc_acpi_detach, 65 1.3.10.2 tls NULL /* activate */, 66 1.3.10.2 tls apple_smc_acpi_rescan, 67 1.3.10.2 tls apple_smc_acpi_child_detached); 68 1.3.10.2 tls 69 1.3.10.2 tls static const char *const apple_smc_ids[] = { 70 1.3.10.2 tls "APP0001", 71 1.3.10.2 tls NULL 72 1.3.10.2 tls }; 73 1.3.10.2 tls 74 1.3.10.2 tls static int 75 1.3.10.2 tls apple_smc_acpi_match(device_t parent, cfdata_t match, void *aux) 76 1.3.10.2 tls { 77 1.3.10.2 tls struct acpi_attach_args *aa = aux; 78 1.3.10.2 tls 79 1.3.10.2 tls if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 80 1.3.10.2 tls return 0; 81 1.3.10.2 tls 82 1.3.10.2 tls if (!acpi_match_hid(aa->aa_node->ad_devinfo, apple_smc_ids)) 83 1.3.10.2 tls return 0; 84 1.3.10.2 tls 85 1.3.10.2 tls return 1; 86 1.3.10.2 tls } 87 1.3.10.2 tls 88 1.3.10.2 tls static void 89 1.3.10.2 tls apple_smc_acpi_attach(device_t parent, device_t self, void *aux) 90 1.3.10.2 tls { 91 1.3.10.2 tls struct apple_smc_acpi_softc *sc = device_private(self); 92 1.3.10.2 tls struct apple_smc_tag *smc = &sc->sc_smc; 93 1.3.10.2 tls struct acpi_attach_args *aa = aux; 94 1.3.10.2 tls struct acpi_resources res; 95 1.3.10.2 tls struct acpi_io *io; 96 1.3.10.2 tls int rv; 97 1.3.10.2 tls 98 1.3.10.2 tls smc->smc_dev = self; 99 1.3.10.2 tls 100 1.3.10.2 tls aprint_normal("\n"); 101 1.3.10.2 tls aprint_naive("\n"); 102 1.3.10.2 tls 103 1.3.10.2 tls rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 104 1.3.10.2 tls &res, &acpi_resource_parse_ops_default); 105 1.3.10.2 tls if (ACPI_FAILURE(rv)) { 106 1.3.10.2 tls aprint_error_dev(self, "couldn't parse SMC resources: %s\n", 107 1.3.10.2 tls AcpiFormatException(rv)); 108 1.3.10.2 tls goto out0; 109 1.3.10.2 tls } 110 1.3.10.2 tls 111 1.3.10.2 tls io = acpi_res_io(&res, 0); 112 1.3.10.2 tls if (io == NULL) { 113 1.3.10.2 tls aprint_error_dev(self, "no I/O resource\n"); 114 1.3.10.2 tls goto out1; 115 1.3.10.2 tls } 116 1.3.10.2 tls 117 1.3.10.2 tls if (io->ar_length < APPLE_SMC_REGSIZE) { 118 1.3.10.2 tls aprint_error_dev(self, "I/O resources too small: %"PRId32"\n", 119 1.3.10.2 tls io->ar_length); 120 1.3.10.2 tls goto out1; 121 1.3.10.2 tls } 122 1.3.10.2 tls 123 1.3.10.2 tls if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, 124 1.3.10.2 tls &smc->smc_bsh) != 0) { 125 1.3.10.2 tls aprint_error_dev(self, "unable to map I/O registers\n"); 126 1.3.10.2 tls goto out1; 127 1.3.10.2 tls } 128 1.3.10.2 tls 129 1.3.10.2 tls smc->smc_bst = aa->aa_iot; 130 1.3.10.2 tls smc->smc_size = io->ar_length; 131 1.3.10.2 tls 132 1.3.10.2 tls apple_smc_attach(smc); 133 1.3.10.2 tls 134 1.3.10.2 tls out1: acpi_resource_cleanup(&res); 135 1.3.10.2 tls out0: return; 136 1.3.10.2 tls } 137 1.3.10.2 tls 138 1.3.10.2 tls static int 139 1.3.10.2 tls apple_smc_acpi_detach(device_t self, int flags) 140 1.3.10.2 tls { 141 1.3.10.2 tls struct apple_smc_acpi_softc *sc = device_private(self); 142 1.3.10.2 tls struct apple_smc_tag *smc = &sc->sc_smc; 143 1.3.10.2 tls int error; 144 1.3.10.2 tls 145 1.3.10.2 tls if (smc->smc_size != 0) { 146 1.3.10.2 tls error = apple_smc_detach(smc, flags); 147 1.3.10.2 tls if (error) 148 1.3.10.2 tls return error; 149 1.3.10.2 tls 150 1.3.10.2 tls bus_space_unmap(smc->smc_bst, smc->smc_bsh, smc->smc_size); 151 1.3.10.2 tls smc->smc_size = 0; 152 1.3.10.2 tls } 153 1.3.10.2 tls 154 1.3.10.2 tls return 0; 155 1.3.10.2 tls } 156 1.3.10.2 tls 157 1.3.10.2 tls static int 158 1.3.10.2 tls apple_smc_acpi_rescan(device_t self, const char *ifattr, const int *locs) 159 1.3.10.2 tls { 160 1.3.10.2 tls struct apple_smc_acpi_softc *const sc = device_private(self); 161 1.3.10.2 tls 162 1.3.10.2 tls return apple_smc_rescan(&sc->sc_smc, ifattr, locs); 163 1.3.10.2 tls } 164 1.3.10.2 tls 165 1.3.10.2 tls static void 166 1.3.10.2 tls apple_smc_acpi_child_detached(device_t self, device_t child) 167 1.3.10.2 tls { 168 1.3.10.2 tls struct apple_smc_acpi_softc *const sc = device_private(self); 169 1.3.10.2 tls 170 1.3.10.2 tls apple_smc_child_detached(&sc->sc_smc, child); 171 1.3.10.2 tls } 172 1.3.10.2 tls 173 1.3.10.2 tls MODULE(MODULE_CLASS_DRIVER, apple_smc_acpi, "apple_smc"); 175 1.3.10.2 tls 176 1.3.10.2 tls #ifdef _MODULE 177 1.3.10.2 tls #include "ioconf.c" 178 1.3.10.2 tls #endif 179 1.3.10.2 tls 180 1.3.10.2 tls static int 181 1.3.10.2 tls apple_smc_acpi_modcmd(modcmd_t cmd, void *arg __unused) 182 1.3.10.2 tls { 183 1.3.10.2 tls #ifdef _MODULE 184 1.3.10.2 tls int error; 185 1.3.10.2 tls #endif 186 1.3.10.2 tls 187 1.3.10.2 tls switch (cmd) { 188 1.3.10.2 tls case MODULE_CMD_INIT: 189 1.3.10.2 tls #ifdef _MODULE 190 1.3.10.2 tls error = config_init_component(cfdriver_ioconf_apple_smc_acpi, 191 1.3.10.2 tls cfattach_ioconf_apple_smc_acpi, 192 1.3.10.2 tls cfdata_ioconf_apple_smc_acpi); 193 1.3.10.2 tls if (error) 194 1.3.10.2 tls return error; 195 1.3.10.2 tls #endif 196 1.3.10.2 tls return 0; 197 1.3.10.2 tls 198 1.3.10.2 tls case MODULE_CMD_FINI: 199 1.3.10.2 tls #ifdef _MODULE 200 1.3.10.2 tls error = config_fini_component(cfdriver_ioconf_apple_smc_acpi, 201 1.3.10.2 tls cfattach_ioconf_apple_smc_acpi, 202 1.3.10.2 tls cfdata_ioconf_apple_smc_acpi); 203 1.3.10.2 tls if (error) 204 1.3.10.2 tls return error; 205 1.3.10.2 tls #endif 206 1.3.10.2 tls return 0; 207 1.3.10.2 tls 208 1.3.10.2 tls default: 209 1.3.10.2 tls return ENOTTY; 210 } 211 } 212
Indexes created Mon Oct 20 05:10:11 GMT 2025