| 1 | /* $NetBSD: acpi.c,v 1.262 2016/06/21 11:33:33 nonaka Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2003, 2007 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Charles M. Hannum of By Noon Software, Inc. |
| 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 | /* |
| 33 | * Copyright (c) 2003 Wasabi Systems, Inc. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Written by Frank van der Linden for Wasabi Systems, Inc. |
| 37 | * |
| 38 | * Redistribution and use in source and binary forms, with or without |
| 39 | * modification, are permitted provided that the following conditions |
| 40 | * are met: |
| 41 | * 1. Redistributions of source code must retain the above copyright |
| 42 | * notice, this list of conditions and the following disclaimer. |
| 43 | * 2. Redistributions in binary form must reproduce the above copyright |
| 44 | * notice, this list of conditions and the following disclaimer in the |
| 45 | * documentation and/or other materials provided with the distribution. |
| 46 | * 3. All advertising materials mentioning features or use of this software |
| 47 | * must display the following acknowledgement: |
| 48 | * This product includes software developed for the NetBSD Project by |
| 49 | * Wasabi Systems, Inc. |
| 50 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
| 51 | * or promote products derived from this software without specific prior |
| 52 | * written permission. |
| 53 | * |
| 54 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
| 55 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 56 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 57 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
| 58 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 59 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 60 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 61 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 62 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 63 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 64 | * POSSIBILITY OF SUCH DAMAGE. |
| 65 | */ |
| 66 | |
| 67 | /* |
| 68 | * Copyright 2001, 2003 Wasabi Systems, Inc. |
| 69 | * All rights reserved. |
| 70 | * |
| 71 | * Written by Jason R. Thorpe for Wasabi Systems, Inc. |
| 72 | * |
| 73 | * Redistribution and use in source and binary forms, with or without |
| 74 | * modification, are permitted provided that the following conditions |
| 75 | * are met: |
| 76 | * 1. Redistributions of source code must retain the above copyright |
| 77 | * notice, this list of conditions and the following disclaimer. |
| 78 | * 2. Redistributions in binary form must reproduce the above copyright |
| 79 | * notice, this list of conditions and the following disclaimer in the |
| 80 | * documentation and/or other materials provided with the distribution. |
| 81 | * 3. All advertising materials mentioning features or use of this software |
| 82 | * must display the following acknowledgement: |
| 83 | * This product includes software developed for the NetBSD Project by |
| 84 | * Wasabi Systems, Inc. |
| 85 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
| 86 | * or promote products derived from this software without specific prior |
| 87 | * written permission. |
| 88 | * |
| 89 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
| 90 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 91 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 92 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
| 93 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 94 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 95 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 96 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 97 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 98 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 99 | * POSSIBILITY OF SUCH DAMAGE. |
| 100 | */ |
| 101 | |
| 102 | #include <sys/cdefs.h> |
| 103 | __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.262 2016/06/21 11:33:33 nonaka Exp $" ); |
| 104 | |
| 105 | #include "opt_acpi.h" |
| 106 | #include "opt_pcifixup.h" |
| 107 | |
| 108 | #include <sys/param.h> |
| 109 | #include <sys/device.h> |
| 110 | #include <sys/kernel.h> |
| 111 | #include <sys/kmem.h> |
| 112 | #include <sys/malloc.h> |
| 113 | #include <sys/module.h> |
| 114 | #include <sys/mutex.h> |
| 115 | #include <sys/sysctl.h> |
| 116 | #include <sys/systm.h> |
| 117 | #include <sys/timetc.h> |
| 118 | |
| 119 | #include <dev/acpi/acpireg.h> |
| 120 | #include <dev/acpi/acpivar.h> |
| 121 | #include <dev/acpi/acpi_mcfg.h> |
| 122 | #include <dev/acpi/acpi_osd.h> |
| 123 | #include <dev/acpi/acpi_pci.h> |
| 124 | #include <dev/acpi/acpi_power.h> |
| 125 | #include <dev/acpi/acpi_timer.h> |
| 126 | #include <dev/acpi/acpi_wakedev.h> |
| 127 | |
| 128 | #include <machine/acpi_machdep.h> |
| 129 | |
| 130 | #define _COMPONENT ACPI_BUS_COMPONENT |
| 131 | ACPI_MODULE_NAME ("acpi" ) |
| 132 | |
| 133 | /* |
| 134 | * The acpi_active variable is set when the ACPI subsystem is active. |
| 135 | * Machine-dependent code may wish to skip other steps (such as attaching |
| 136 | * subsystems that ACPI supercedes) when ACPI is active. |
| 137 | */ |
| 138 | int acpi_active = 0; |
| 139 | int acpi_suspended = 0; |
| 140 | int acpi_force_load = 0; |
| 141 | int acpi_verbose_loaded = 0; |
| 142 | |
| 143 | struct acpi_softc *acpi_softc = NULL; |
| 144 | static uint64_t acpi_root_pointer; |
| 145 | extern kmutex_t acpi_interrupt_list_mtx; |
| 146 | extern struct cfdriver acpi_cd; |
| 147 | static ACPI_HANDLE acpi_scopes[4]; |
| 148 | ACPI_TABLE_HEADER *; |
| 149 | |
| 150 | /* |
| 151 | * This structure provides a context for the ACPI |
| 152 | * namespace walk performed in acpi_build_tree(). |
| 153 | */ |
| 154 | struct acpi_walkcontext { |
| 155 | struct acpi_softc *aw_sc; |
| 156 | struct acpi_devnode *aw_parent; |
| 157 | }; |
| 158 | |
| 159 | /* |
| 160 | * Ignored HIDs. |
| 161 | */ |
| 162 | static const char * const acpi_ignored_ids[] = { |
| 163 | #if defined(i386) || defined(x86_64) |
| 164 | "ACPI0007" , /* ACPI CPUs do not attach to acpi(4) */ |
| 165 | "PNP0000" , /* AT interrupt controller is handled internally */ |
| 166 | "PNP0200" , /* AT DMA controller is handled internally */ |
| 167 | "PNP0A??" , /* PCI Busses are handled internally */ |
| 168 | "PNP0B00" , /* AT RTC is handled internally */ |
| 169 | "PNP0C0F" , /* ACPI PCI link devices are handled internally */ |
| 170 | #endif |
| 171 | #if defined(x86_64) |
| 172 | "PNP0C04" , /* FPU is handled internally */ |
| 173 | #endif |
| 174 | NULL |
| 175 | }; |
| 176 | |
| 177 | /* |
| 178 | * Devices that should be attached early. |
| 179 | */ |
| 180 | static const char * const acpi_early_ids[] = { |
| 181 | "PNP0C09" , /* acpiec(4) */ |
| 182 | NULL |
| 183 | }; |
| 184 | |
| 185 | static int acpi_match(device_t, cfdata_t, void *); |
| 186 | static int acpi_submatch(device_t, cfdata_t, const int *, void *); |
| 187 | static void acpi_attach(device_t, device_t, void *); |
| 188 | static int acpi_detach(device_t, int); |
| 189 | static void acpi_childdet(device_t, device_t); |
| 190 | static bool acpi_suspend(device_t, const pmf_qual_t *); |
| 191 | static bool acpi_resume(device_t, const pmf_qual_t *); |
| 192 | |
| 193 | static void acpi_build_tree(struct acpi_softc *); |
| 194 | static void acpi_config_tree(struct acpi_softc *); |
| 195 | static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, |
| 196 | void *, void **); |
| 197 | static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, |
| 198 | void *, void **); |
| 199 | static void acpi_make_name(struct acpi_devnode *, uint32_t); |
| 200 | |
| 201 | static int acpi_rescan(device_t, const char *, const int *); |
| 202 | static void acpi_rescan_early(struct acpi_softc *); |
| 203 | static void acpi_rescan_nodes(struct acpi_softc *); |
| 204 | static void acpi_rescan_capabilities(device_t); |
| 205 | static int acpi_print(void *aux, const char *); |
| 206 | |
| 207 | static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); |
| 208 | |
| 209 | static void acpi_register_fixed_button(struct acpi_softc *, int); |
| 210 | static void acpi_deregister_fixed_button(struct acpi_softc *, int); |
| 211 | static uint32_t acpi_fixed_button_handler(void *); |
| 212 | static void acpi_fixed_button_pressed(void *); |
| 213 | |
| 214 | static void acpi_sleep_init(struct acpi_softc *); |
| 215 | |
| 216 | static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); |
| 217 | static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); |
| 218 | static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); |
| 219 | |
| 220 | static bool acpi_is_scope(struct acpi_devnode *); |
| 221 | static ACPI_TABLE_HEADER *acpi_map_rsdt(void); |
| 222 | static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); |
| 223 | |
| 224 | void acpi_print_verbose_stub(struct acpi_softc *); |
| 225 | void acpi_print_dev_stub(const char *); |
| 226 | |
| 227 | static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); |
| 228 | ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); |
| 229 | |
| 230 | void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; |
| 231 | void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; |
| 232 | |
| 233 | CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), |
| 234 | acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); |
| 235 | |
| 236 | /* |
| 237 | * Probe for ACPI support. |
| 238 | * |
| 239 | * This is called by the machine-dependent ACPI front-end. |
| 240 | * Note: this is not an autoconfiguration interface function. |
| 241 | */ |
| 242 | int |
| 243 | acpi_probe(void) |
| 244 | { |
| 245 | ACPI_TABLE_HEADER *rsdt; |
| 246 | ACPI_STATUS rv; |
| 247 | int quirks; |
| 248 | |
| 249 | if (acpi_softc != NULL) |
| 250 | panic("%s: already probed" , __func__); |
| 251 | |
| 252 | mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); |
| 253 | |
| 254 | /* |
| 255 | * Start up ACPICA. |
| 256 | */ |
| 257 | AcpiGbl_EnableInterpreterSlack = true; |
| 258 | |
| 259 | rv = AcpiInitializeSubsystem(); |
| 260 | |
| 261 | if (ACPI_FAILURE(rv)) { |
| 262 | aprint_error("%s: failed to initialize subsystem\n" , __func__); |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | /* |
| 267 | * Allocate space for RSDT/XSDT and DSDT, |
| 268 | * but allow resizing if more tables exist. |
| 269 | */ |
| 270 | rv = AcpiInitializeTables(NULL, 2, true); |
| 271 | |
| 272 | if (ACPI_FAILURE(rv)) { |
| 273 | aprint_error("%s: failed to initialize tables\n" , __func__); |
| 274 | goto fail; |
| 275 | } |
| 276 | |
| 277 | rv = AcpiLoadTables(); |
| 278 | |
| 279 | if (ACPI_FAILURE(rv)) { |
| 280 | aprint_error("%s: failed to load tables\n" , __func__); |
| 281 | goto fail; |
| 282 | } |
| 283 | |
| 284 | rsdt = acpi_map_rsdt(); |
| 285 | |
| 286 | if (rsdt == NULL) { |
| 287 | aprint_error("%s: failed to map RSDT\n" , __func__); |
| 288 | goto fail; |
| 289 | } |
| 290 | |
| 291 | quirks = acpi_find_quirks(); |
| 292 | |
| 293 | if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { |
| 294 | |
| 295 | aprint_normal("ACPI: BIOS is listed as broken:\n" ); |
| 296 | aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " |
| 297 | "AslId <%4.4s,%08x>\n" , rsdt->OemId, rsdt->OemTableId, |
| 298 | rsdt->OemRevision, rsdt->AslCompilerId, |
| 299 | rsdt->AslCompilerRevision); |
| 300 | aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n" ); |
| 301 | |
| 302 | acpi_unmap_rsdt(rsdt); |
| 303 | goto fail; |
| 304 | } |
| 305 | |
| 306 | if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { |
| 307 | |
| 308 | aprint_normal("ACPI: BIOS is too old (%s). " |
| 309 | "Set acpi_force_load to use.\n" , |
| 310 | pmf_get_platform("bios-date" )); |
| 311 | |
| 312 | acpi_unmap_rsdt(rsdt); |
| 313 | goto fail; |
| 314 | } |
| 315 | |
| 316 | acpi_unmap_rsdt(rsdt); |
| 317 | |
| 318 | rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); |
| 319 | |
| 320 | if (ACPI_FAILURE(rv)) { |
| 321 | aprint_error("%s: failed to enable subsystem\n" , __func__); |
| 322 | goto fail; |
| 323 | } |
| 324 | |
| 325 | return 1; |
| 326 | |
| 327 | fail: |
| 328 | (void)AcpiTerminate(); |
| 329 | |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | void |
| 334 | acpi_disable(void) |
| 335 | { |
| 336 | |
| 337 | if (acpi_softc == NULL) |
| 338 | return; |
| 339 | |
| 340 | KASSERT(acpi_active != 0); |
| 341 | |
| 342 | if (AcpiGbl_FADT.SmiCommand != 0) |
| 343 | AcpiDisable(); |
| 344 | } |
| 345 | |
| 346 | int |
| 347 | acpi_check(device_t parent, const char *ifattr) |
| 348 | { |
| 349 | return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); |
| 350 | } |
| 351 | |
| 352 | int |
| 353 | acpi_reset(void) |
| 354 | { |
| 355 | struct acpi_softc *sc = acpi_softc; |
| 356 | ACPI_GENERIC_ADDRESS *ResetReg; |
| 357 | ACPI_PCI_ID PciId; |
| 358 | ACPI_STATUS status; |
| 359 | |
| 360 | if (sc == NULL) |
| 361 | return ENXIO; |
| 362 | |
| 363 | ResetReg = &AcpiGbl_FADT.ResetRegister; |
| 364 | |
| 365 | /* Check if the reset register is supported */ |
| 366 | if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || |
| 367 | !ResetReg->Address) { |
| 368 | return ENOENT; |
| 369 | } |
| 370 | |
| 371 | switch (ResetReg->SpaceId) { |
| 372 | case ACPI_ADR_SPACE_PCI_CONFIG: |
| 373 | PciId.Segment = PciId.Bus = 0; |
| 374 | PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); |
| 375 | PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); |
| 376 | status = AcpiOsWritePciConfiguration(&PciId, |
| 377 | ACPI_GAS_PCI_REGOFF(ResetReg->Address), |
| 378 | AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); |
| 379 | break; |
| 380 | case ACPI_ADR_SPACE_SYSTEM_IO: |
| 381 | case ACPI_ADR_SPACE_SYSTEM_MEMORY: |
| 382 | status = AcpiReset(); |
| 383 | break; |
| 384 | default: |
| 385 | status = AE_TYPE; |
| 386 | break; |
| 387 | } |
| 388 | |
| 389 | return ACPI_FAILURE(status) ? EIO : 0; |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | * Autoconfiguration. |
| 394 | */ |
| 395 | static int |
| 396 | acpi_match(device_t parent, cfdata_t match, void *aux) |
| 397 | { |
| 398 | /* |
| 399 | * XXX: Nada; MD code has called acpi_probe(). |
| 400 | */ |
| 401 | return 1; |
| 402 | } |
| 403 | |
| 404 | static int |
| 405 | acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) |
| 406 | { |
| 407 | struct cfattach *ca; |
| 408 | |
| 409 | ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); |
| 410 | |
| 411 | return (ca == &acpi_ca); |
| 412 | } |
| 413 | |
| 414 | static void |
| 415 | acpi_attach(device_t parent, device_t self, void *aux) |
| 416 | { |
| 417 | struct acpi_softc *sc = device_private(self); |
| 418 | struct acpibus_attach_args *aa = aux; |
| 419 | ACPI_TABLE_HEADER *rsdt; |
| 420 | ACPI_STATUS rv; |
| 421 | |
| 422 | aprint_naive("\n" ); |
| 423 | aprint_normal(": Intel ACPICA %08x\n" , ACPI_CA_VERSION); |
| 424 | |
| 425 | if (acpi_softc != NULL) |
| 426 | panic("%s: already attached" , __func__); |
| 427 | |
| 428 | rsdt = acpi_map_rsdt(); |
| 429 | |
| 430 | if (rsdt == NULL) |
| 431 | aprint_error_dev(self, "X/RSDT: Not found\n" ); |
| 432 | else { |
| 433 | aprint_verbose_dev(self, |
| 434 | "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n" , |
| 435 | rsdt->OemId, rsdt->OemTableId, |
| 436 | rsdt->OemRevision, |
| 437 | rsdt->AslCompilerId, rsdt->AslCompilerRevision); |
| 438 | } |
| 439 | |
| 440 | acpi_unmap_rsdt(rsdt); |
| 441 | |
| 442 | sc->sc_dev = self; |
| 443 | sc->sc_root = NULL; |
| 444 | |
| 445 | sc->sc_sleepstate = ACPI_STATE_S0; |
| 446 | sc->sc_quirks = acpi_find_quirks(); |
| 447 | |
| 448 | sysmon_power_settype("acpi" ); |
| 449 | |
| 450 | sc->sc_iot = aa->aa_iot; |
| 451 | sc->sc_memt = aa->aa_memt; |
| 452 | sc->sc_pc = aa->aa_pc; |
| 453 | sc->sc_pciflags = aa->aa_pciflags; |
| 454 | sc->sc_ic = aa->aa_ic; |
| 455 | sc->sc_dmat = aa->aa_dmat; |
| 456 | sc->sc_dmat64 = aa->aa_dmat64; |
| 457 | |
| 458 | SIMPLEQ_INIT(&sc->ad_head); |
| 459 | |
| 460 | acpi_softc = sc; |
| 461 | |
| 462 | if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) |
| 463 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 464 | |
| 465 | /* |
| 466 | * Bring ACPICA on-line. |
| 467 | */ |
| 468 | |
| 469 | rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); |
| 470 | |
| 471 | if (ACPI_FAILURE(rv)) |
| 472 | goto fail; |
| 473 | |
| 474 | /* |
| 475 | * Early initialization of acpiec(4) via ECDT. |
| 476 | */ |
| 477 | (void)config_found_ia(self, "acpiecdtbus" , aa, NULL); |
| 478 | |
| 479 | rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); |
| 480 | |
| 481 | if (ACPI_FAILURE(rv)) |
| 482 | goto fail; |
| 483 | |
| 484 | /* |
| 485 | * Scan the namespace and build our device tree. |
| 486 | */ |
| 487 | acpi_build_tree(sc); |
| 488 | |
| 489 | /* |
| 490 | * Probe MCFG table |
| 491 | */ |
| 492 | acpimcfg_probe(sc); |
| 493 | |
| 494 | acpi_md_callback(sc); |
| 495 | |
| 496 | /* |
| 497 | * Early initialization of the _PDC control method |
| 498 | * that may load additional SSDT tables dynamically. |
| 499 | */ |
| 500 | (void)acpi_md_pdc(); |
| 501 | |
| 502 | /* |
| 503 | * Install global notify handlers. |
| 504 | */ |
| 505 | rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, |
| 506 | ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); |
| 507 | |
| 508 | if (ACPI_FAILURE(rv)) |
| 509 | goto fail; |
| 510 | |
| 511 | rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, |
| 512 | ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); |
| 513 | |
| 514 | if (ACPI_FAILURE(rv)) |
| 515 | goto fail; |
| 516 | |
| 517 | acpi_active = 1; |
| 518 | |
| 519 | /* Show SCI interrupt. */ |
| 520 | aprint_verbose_dev(self, "SCI interrupting at int %u\n" , |
| 521 | AcpiGbl_FADT.SciInterrupt); |
| 522 | |
| 523 | /* |
| 524 | * Install fixed-event handlers. |
| 525 | */ |
| 526 | acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); |
| 527 | acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); |
| 528 | |
| 529 | acpitimer_init(sc); |
| 530 | acpi_config_tree(sc); |
| 531 | acpi_sleep_init(sc); |
| 532 | |
| 533 | #ifdef ACPI_DEBUG |
| 534 | acpi_debug_init(); |
| 535 | #endif |
| 536 | |
| 537 | /* |
| 538 | * Print debug information. |
| 539 | */ |
| 540 | acpi_print_verbose(sc); |
| 541 | |
| 542 | return; |
| 543 | |
| 544 | fail: |
| 545 | aprint_error("%s: failed to initialize ACPI: %s\n" , |
| 546 | __func__, AcpiFormatException(rv)); |
| 547 | } |
| 548 | |
| 549 | /* |
| 550 | * XXX: This is incomplete. |
| 551 | */ |
| 552 | static int |
| 553 | acpi_detach(device_t self, int flags) |
| 554 | { |
| 555 | struct acpi_softc *sc = device_private(self); |
| 556 | ACPI_STATUS rv; |
| 557 | int rc; |
| 558 | |
| 559 | rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, |
| 560 | ACPI_SYSTEM_NOTIFY, acpi_notify_handler); |
| 561 | |
| 562 | if (ACPI_FAILURE(rv)) |
| 563 | return EBUSY; |
| 564 | |
| 565 | rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, |
| 566 | ACPI_DEVICE_NOTIFY, acpi_notify_handler); |
| 567 | |
| 568 | if (ACPI_FAILURE(rv)) |
| 569 | return EBUSY; |
| 570 | |
| 571 | if ((rc = config_detach_children(self, flags)) != 0) |
| 572 | return rc; |
| 573 | |
| 574 | if ((rc = acpitimer_detach()) != 0) |
| 575 | return rc; |
| 576 | |
| 577 | acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); |
| 578 | acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); |
| 579 | |
| 580 | pmf_device_deregister(self); |
| 581 | |
| 582 | acpi_softc = NULL; |
| 583 | |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | static void |
| 588 | acpi_childdet(device_t self, device_t child) |
| 589 | { |
| 590 | struct acpi_softc *sc = device_private(self); |
| 591 | struct acpi_devnode *ad; |
| 592 | |
| 593 | if (sc->sc_apmbus == child) |
| 594 | sc->sc_apmbus = NULL; |
| 595 | |
| 596 | if (sc->sc_hpet == child) |
| 597 | sc->sc_hpet = NULL; |
| 598 | |
| 599 | if (sc->sc_wdrt == child) |
| 600 | sc->sc_wdrt = NULL; |
| 601 | |
| 602 | SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { |
| 603 | |
| 604 | if (ad->ad_device == child) |
| 605 | ad->ad_device = NULL; |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | static bool |
| 610 | acpi_suspend(device_t dv, const pmf_qual_t *qual) |
| 611 | { |
| 612 | |
| 613 | acpi_suspended = 1; |
| 614 | |
| 615 | return true; |
| 616 | } |
| 617 | |
| 618 | static bool |
| 619 | acpi_resume(device_t dv, const pmf_qual_t *qual) |
| 620 | { |
| 621 | |
| 622 | acpi_suspended = 0; |
| 623 | |
| 624 | return true; |
| 625 | } |
| 626 | |
| 627 | /* |
| 628 | * Namespace scan. |
| 629 | */ |
| 630 | static void |
| 631 | acpi_build_tree(struct acpi_softc *sc) |
| 632 | { |
| 633 | struct acpi_walkcontext awc; |
| 634 | |
| 635 | /* |
| 636 | * Get the root scope handles. |
| 637 | */ |
| 638 | KASSERT(__arraycount(acpi_scopes) == 4); |
| 639 | |
| 640 | (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_" , &acpi_scopes[0]); |
| 641 | (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_" , &acpi_scopes[1]); |
| 642 | (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_" , &acpi_scopes[2]); |
| 643 | (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_" , &acpi_scopes[3]); |
| 644 | |
| 645 | /* |
| 646 | * Make the root node. |
| 647 | */ |
| 648 | awc.aw_sc = sc; |
| 649 | awc.aw_parent = NULL; |
| 650 | |
| 651 | (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); |
| 652 | |
| 653 | KASSERT(sc->sc_root == NULL); |
| 654 | KASSERT(awc.aw_parent != NULL); |
| 655 | |
| 656 | sc->sc_root = awc.aw_parent; |
| 657 | |
| 658 | /* |
| 659 | * Build the internal namespace. |
| 660 | */ |
| 661 | (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, |
| 662 | acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); |
| 663 | |
| 664 | /* |
| 665 | * Scan the internal namespace. |
| 666 | */ |
| 667 | (void)acpi_pcidev_scan(sc->sc_root); |
| 668 | } |
| 669 | |
| 670 | static void |
| 671 | acpi_config_tree(struct acpi_softc *sc) |
| 672 | { |
| 673 | |
| 674 | /* |
| 675 | * Configure all everything found "at acpi?". |
| 676 | */ |
| 677 | (void)acpi_rescan(sc->sc_dev, NULL, NULL); |
| 678 | |
| 679 | /* |
| 680 | * Update GPE information. |
| 681 | * |
| 682 | * Note that this must be called after |
| 683 | * all GPE handlers have been installed. |
| 684 | */ |
| 685 | (void)AcpiUpdateAllGpes(); |
| 686 | |
| 687 | /* |
| 688 | * Defer rest of the configuration. |
| 689 | */ |
| 690 | (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); |
| 691 | } |
| 692 | |
| 693 | static ACPI_STATUS |
| 694 | acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, |
| 695 | void *context, void **status) |
| 696 | { |
| 697 | struct acpi_walkcontext *awc = context; |
| 698 | struct acpi_softc *sc = awc->aw_sc; |
| 699 | struct acpi_devnode *ad; |
| 700 | ACPI_DEVICE_INFO *devinfo; |
| 701 | ACPI_OBJECT_TYPE type; |
| 702 | ACPI_STATUS rv; |
| 703 | |
| 704 | rv = AcpiGetObjectInfo(handle, &devinfo); |
| 705 | |
| 706 | if (ACPI_FAILURE(rv)) |
| 707 | return AE_OK; /* Do not terminate the walk. */ |
| 708 | |
| 709 | type = devinfo->Type; |
| 710 | |
| 711 | switch (type) { |
| 712 | |
| 713 | case ACPI_TYPE_DEVICE: |
| 714 | acpi_activate_device(handle, &devinfo); |
| 715 | case ACPI_TYPE_PROCESSOR: |
| 716 | case ACPI_TYPE_THERMAL: |
| 717 | case ACPI_TYPE_POWER: |
| 718 | |
| 719 | ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); |
| 720 | |
| 721 | if (ad == NULL) |
| 722 | return AE_NO_MEMORY; |
| 723 | |
| 724 | ad->ad_device = NULL; |
| 725 | ad->ad_notify = NULL; |
| 726 | ad->ad_pciinfo = NULL; |
| 727 | ad->ad_wakedev = NULL; |
| 728 | |
| 729 | ad->ad_type = type; |
| 730 | ad->ad_handle = handle; |
| 731 | ad->ad_devinfo = devinfo; |
| 732 | |
| 733 | ad->ad_root = sc->sc_dev; |
| 734 | ad->ad_parent = awc->aw_parent; |
| 735 | |
| 736 | acpi_match_node_init(ad); |
| 737 | acpi_make_name(ad, devinfo->Name); |
| 738 | |
| 739 | /* |
| 740 | * Identify wake GPEs from the _PRW. Note that |
| 741 | * AcpiUpdateAllGpes() must be called afterwards. |
| 742 | */ |
| 743 | if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) |
| 744 | acpi_wakedev_init(ad); |
| 745 | |
| 746 | SIMPLEQ_INIT(&ad->ad_child_head); |
| 747 | SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); |
| 748 | |
| 749 | if (ad->ad_parent != NULL) { |
| 750 | |
| 751 | SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, |
| 752 | ad, ad_child_list); |
| 753 | } |
| 754 | |
| 755 | awc->aw_parent = ad; |
| 756 | } |
| 757 | |
| 758 | return AE_OK; |
| 759 | } |
| 760 | |
| 761 | static ACPI_STATUS |
| 762 | acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, |
| 763 | void *context, void **status) |
| 764 | { |
| 765 | struct acpi_walkcontext *awc = context; |
| 766 | |
| 767 | KASSERT(awc != NULL); |
| 768 | KASSERT(awc->aw_parent != NULL); |
| 769 | |
| 770 | if (handle == awc->aw_parent->ad_handle) |
| 771 | awc->aw_parent = awc->aw_parent->ad_parent; |
| 772 | |
| 773 | return AE_OK; |
| 774 | } |
| 775 | |
| 776 | static void |
| 777 | acpi_make_name(struct acpi_devnode *ad, uint32_t name) |
| 778 | { |
| 779 | ACPI_NAME_UNION *anu; |
| 780 | int clear, i; |
| 781 | |
| 782 | anu = (ACPI_NAME_UNION *)&name; |
| 783 | ad->ad_name[4] = '\0'; |
| 784 | |
| 785 | for (i = 3, clear = 0; i >= 0; i--) { |
| 786 | |
| 787 | if (clear == 0 && anu->Ascii[i] == '_') |
| 788 | ad->ad_name[i] = '\0'; |
| 789 | else { |
| 790 | ad->ad_name[i] = anu->Ascii[i]; |
| 791 | clear = 1; |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | if (ad->ad_name[0] == '\0') |
| 796 | ad->ad_name[0] = '_'; |
| 797 | } |
| 798 | |
| 799 | /* |
| 800 | * Device attachment. |
| 801 | */ |
| 802 | static int |
| 803 | acpi_rescan(device_t self, const char *ifattr, const int *locators) |
| 804 | { |
| 805 | struct acpi_softc *sc = device_private(self); |
| 806 | struct acpi_attach_args aa; |
| 807 | |
| 808 | /* |
| 809 | * Try to attach hpet(4) first via a specific table. |
| 810 | */ |
| 811 | aa.aa_memt = sc->sc_memt; |
| 812 | |
| 813 | if (ifattr_match(ifattr, "acpihpetbus" ) && sc->sc_hpet == NULL) |
| 814 | sc->sc_hpet = config_found_ia(sc->sc_dev, |
| 815 | "acpihpetbus" , &aa, NULL); |
| 816 | |
| 817 | /* |
| 818 | * A two-pass scan for acpinodebus. |
| 819 | */ |
| 820 | if (ifattr_match(ifattr, "acpinodebus" )) { |
| 821 | acpi_rescan_early(sc); |
| 822 | acpi_rescan_nodes(sc); |
| 823 | } |
| 824 | |
| 825 | /* |
| 826 | * Attach APM emulation and acpiwdrt(4). |
| 827 | */ |
| 828 | if (ifattr_match(ifattr, "acpiapmbus" ) && sc->sc_apmbus == NULL) |
| 829 | sc->sc_apmbus = config_found_ia(sc->sc_dev, |
| 830 | "acpiapmbus" , NULL, NULL); |
| 831 | |
| 832 | if (ifattr_match(ifattr, "acpiwdrtbus" ) && sc->sc_wdrt == NULL) |
| 833 | sc->sc_wdrt = config_found_ia(sc->sc_dev, |
| 834 | "acpiwdrtbus" , NULL, NULL); |
| 835 | |
| 836 | return 0; |
| 837 | } |
| 838 | |
| 839 | static void |
| 840 | acpi_rescan_early(struct acpi_softc *sc) |
| 841 | { |
| 842 | struct acpi_attach_args aa; |
| 843 | struct acpi_devnode *ad; |
| 844 | |
| 845 | /* |
| 846 | * First scan for devices such as acpiec(4) that |
| 847 | * should be always attached before anything else. |
| 848 | * We want these devices to attach regardless of |
| 849 | * the device status and other restrictions. |
| 850 | */ |
| 851 | SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { |
| 852 | |
| 853 | if (ad->ad_device != NULL) |
| 854 | continue; |
| 855 | |
| 856 | if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) |
| 857 | continue; |
| 858 | |
| 859 | if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) |
| 860 | continue; |
| 861 | |
| 862 | aa.aa_node = ad; |
| 863 | aa.aa_iot = sc->sc_iot; |
| 864 | aa.aa_memt = sc->sc_memt; |
| 865 | aa.aa_pc = sc->sc_pc; |
| 866 | aa.aa_pciflags = sc->sc_pciflags; |
| 867 | aa.aa_ic = sc->sc_ic; |
| 868 | aa.aa_dmat = sc->sc_dmat; |
| 869 | aa.aa_dmat64 = sc->sc_dmat64; |
| 870 | |
| 871 | ad->ad_device = config_found_ia(sc->sc_dev, |
| 872 | "acpinodebus" , &aa, acpi_print); |
| 873 | } |
| 874 | } |
| 875 | |
| 876 | static void |
| 877 | acpi_rescan_nodes(struct acpi_softc *sc) |
| 878 | { |
| 879 | const char * const hpet_ids[] = { "PNP0103" , NULL }; |
| 880 | struct acpi_attach_args aa; |
| 881 | struct acpi_devnode *ad; |
| 882 | ACPI_DEVICE_INFO *di; |
| 883 | |
| 884 | SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { |
| 885 | |
| 886 | if (ad->ad_device != NULL) |
| 887 | continue; |
| 888 | |
| 889 | /* |
| 890 | * There is a bug in ACPICA: it defines the type |
| 891 | * of the scopes incorrectly for its own reasons. |
| 892 | */ |
| 893 | if (acpi_is_scope(ad) != false) |
| 894 | continue; |
| 895 | |
| 896 | di = ad->ad_devinfo; |
| 897 | |
| 898 | /* |
| 899 | * We only attach devices which are present, enabled, and |
| 900 | * functioning properly. However, if a device is enabled, |
| 901 | * it is decoding resources and we should claim these, |
| 902 | * if possible. This requires changes to bus_space(9). |
| 903 | * Note: there is a possible race condition, because _STA |
| 904 | * may have changed since di->CurrentStatus was set. |
| 905 | */ |
| 906 | if (di->Type == ACPI_TYPE_DEVICE) { |
| 907 | |
| 908 | if ((di->Valid & ACPI_VALID_STA) != 0 && |
| 909 | (di->CurrentStatus & ACPI_STA_OK) != ACPI_STA_OK) |
| 910 | continue; |
| 911 | } |
| 912 | |
| 913 | if (di->Type == ACPI_TYPE_POWER) |
| 914 | continue; |
| 915 | |
| 916 | if (di->Type == ACPI_TYPE_PROCESSOR) |
| 917 | continue; |
| 918 | |
| 919 | if (acpi_match_hid(di, acpi_early_ids) != 0) |
| 920 | continue; |
| 921 | |
| 922 | if (acpi_match_hid(di, acpi_ignored_ids) != 0) |
| 923 | continue; |
| 924 | |
| 925 | if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) |
| 926 | continue; |
| 927 | |
| 928 | aa.aa_node = ad; |
| 929 | aa.aa_iot = sc->sc_iot; |
| 930 | aa.aa_memt = sc->sc_memt; |
| 931 | aa.aa_pc = sc->sc_pc; |
| 932 | aa.aa_pciflags = sc->sc_pciflags; |
| 933 | aa.aa_ic = sc->sc_ic; |
| 934 | aa.aa_dmat = sc->sc_dmat; |
| 935 | aa.aa_dmat64 = sc->sc_dmat64; |
| 936 | |
| 937 | ad->ad_device = config_found_ia(sc->sc_dev, |
| 938 | "acpinodebus" , &aa, acpi_print); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | static void |
| 943 | acpi_rescan_capabilities(device_t self) |
| 944 | { |
| 945 | struct acpi_softc *sc = device_private(self); |
| 946 | struct acpi_devnode *ad; |
| 947 | ACPI_HANDLE tmp; |
| 948 | ACPI_STATUS rv; |
| 949 | |
| 950 | SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { |
| 951 | |
| 952 | if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) |
| 953 | continue; |
| 954 | |
| 955 | /* |
| 956 | * Scan power resource capabilities. |
| 957 | * |
| 958 | * If any power states are supported, |
| 959 | * at least _PR0 and _PR3 must be present. |
| 960 | */ |
| 961 | rv = AcpiGetHandle(ad->ad_handle, "_PR0" , &tmp); |
| 962 | |
| 963 | if (ACPI_SUCCESS(rv)) { |
| 964 | ad->ad_flags |= ACPI_DEVICE_POWER; |
| 965 | acpi_power_add(ad); |
| 966 | } |
| 967 | |
| 968 | /* |
| 969 | * Scan wake-up capabilities. |
| 970 | */ |
| 971 | if (ad->ad_wakedev != NULL) { |
| 972 | ad->ad_flags |= ACPI_DEVICE_WAKEUP; |
| 973 | acpi_wakedev_add(ad); |
| 974 | } |
| 975 | |
| 976 | /* |
| 977 | * Scan docking stations. |
| 978 | */ |
| 979 | rv = AcpiGetHandle(ad->ad_handle, "_DCK" , &tmp); |
| 980 | |
| 981 | if (ACPI_SUCCESS(rv)) |
| 982 | ad->ad_flags |= ACPI_DEVICE_DOCK; |
| 983 | |
| 984 | /* |
| 985 | * Scan devices that are ejectable. |
| 986 | */ |
| 987 | rv = AcpiGetHandle(ad->ad_handle, "_EJ0" , &tmp); |
| 988 | |
| 989 | if (ACPI_SUCCESS(rv)) |
| 990 | ad->ad_flags |= ACPI_DEVICE_EJECT; |
| 991 | } |
| 992 | } |
| 993 | |
| 994 | static int |
| 995 | acpi_print(void *aux, const char *pnp) |
| 996 | { |
| 997 | struct acpi_attach_args *aa = aux; |
| 998 | struct acpi_devnode *ad; |
| 999 | const char *hid, *uid; |
| 1000 | ACPI_DEVICE_INFO *di; |
| 1001 | |
| 1002 | ad = aa->aa_node; |
| 1003 | di = ad->ad_devinfo; |
| 1004 | |
| 1005 | hid = di->HardwareId.String; |
| 1006 | uid = di->UniqueId.String; |
| 1007 | |
| 1008 | if (pnp != NULL) { |
| 1009 | |
| 1010 | if (di->Type != ACPI_TYPE_DEVICE) { |
| 1011 | |
| 1012 | aprint_normal("%s (ACPI Object Type '%s') at %s" , |
| 1013 | ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); |
| 1014 | |
| 1015 | return UNCONF; |
| 1016 | } |
| 1017 | |
| 1018 | if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) |
| 1019 | return 0; |
| 1020 | |
| 1021 | aprint_normal("%s (%s) " , ad->ad_name, hid); |
| 1022 | acpi_print_dev(hid); |
| 1023 | aprint_normal("at %s" , pnp); |
| 1024 | |
| 1025 | return UNCONF; |
| 1026 | } |
| 1027 | |
| 1028 | aprint_normal(" (%s" , ad->ad_name); |
| 1029 | |
| 1030 | if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { |
| 1031 | |
| 1032 | aprint_normal(", %s" , hid); |
| 1033 | |
| 1034 | if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { |
| 1035 | |
| 1036 | if (uid[0] == '\0') |
| 1037 | uid = "<null>" ; |
| 1038 | |
| 1039 | aprint_normal("-%s" , uid); |
| 1040 | } |
| 1041 | } |
| 1042 | |
| 1043 | aprint_normal(")" ); |
| 1044 | |
| 1045 | return UNCONF; |
| 1046 | } |
| 1047 | |
| 1048 | /* |
| 1049 | * Notify. |
| 1050 | */ |
| 1051 | static void |
| 1052 | acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) |
| 1053 | { |
| 1054 | struct acpi_softc *sc = acpi_softc; |
| 1055 | struct acpi_devnode *ad; |
| 1056 | |
| 1057 | KASSERT(sc != NULL); |
| 1058 | KASSERT(aux == NULL); |
| 1059 | KASSERT(acpi_active != 0); |
| 1060 | |
| 1061 | if (acpi_suspended != 0) |
| 1062 | return; |
| 1063 | |
| 1064 | /* |
| 1065 | * System: 0x00 - 0x7F. |
| 1066 | * Device: 0x80 - 0xFF. |
| 1067 | */ |
| 1068 | switch (event) { |
| 1069 | |
| 1070 | case ACPI_NOTIFY_BUS_CHECK: |
| 1071 | case ACPI_NOTIFY_DEVICE_CHECK: |
| 1072 | case ACPI_NOTIFY_DEVICE_WAKE: |
| 1073 | case ACPI_NOTIFY_EJECT_REQUEST: |
| 1074 | case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: |
| 1075 | case ACPI_NOTIFY_FREQUENCY_MISMATCH: |
| 1076 | case ACPI_NOTIFY_BUS_MODE_MISMATCH: |
| 1077 | case ACPI_NOTIFY_POWER_FAULT: |
| 1078 | case ACPI_NOTIFY_CAPABILITIES_CHECK: |
| 1079 | case ACPI_NOTIFY_DEVICE_PLD_CHECK: |
| 1080 | case ACPI_NOTIFY_RESERVED: |
| 1081 | case ACPI_NOTIFY_LOCALITY_UPDATE: |
| 1082 | break; |
| 1083 | } |
| 1084 | |
| 1085 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " |
| 1086 | "%s (%p)\n" , event, acpi_name(handle), handle)); |
| 1087 | |
| 1088 | /* |
| 1089 | * We deliver notifications only to drivers |
| 1090 | * that have been successfully attached and |
| 1091 | * that have registered a handler with us. |
| 1092 | * The opaque pointer is always the device_t. |
| 1093 | */ |
| 1094 | SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { |
| 1095 | |
| 1096 | if (ad->ad_device == NULL) |
| 1097 | continue; |
| 1098 | |
| 1099 | if (ad->ad_notify == NULL) |
| 1100 | continue; |
| 1101 | |
| 1102 | if (ad->ad_handle != handle) |
| 1103 | continue; |
| 1104 | |
| 1105 | (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); |
| 1106 | |
| 1107 | return; |
| 1108 | } |
| 1109 | |
| 1110 | aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " |
| 1111 | "for %s (%p)\n" , event, acpi_name(handle), handle); |
| 1112 | } |
| 1113 | |
| 1114 | bool |
| 1115 | acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) |
| 1116 | { |
| 1117 | struct acpi_softc *sc = acpi_softc; |
| 1118 | |
| 1119 | KASSERT(sc != NULL); |
| 1120 | KASSERT(acpi_active != 0); |
| 1121 | |
| 1122 | if (acpi_suspended != 0) |
| 1123 | goto fail; |
| 1124 | |
| 1125 | if (ad == NULL || notify == NULL) |
| 1126 | goto fail; |
| 1127 | |
| 1128 | ad->ad_notify = notify; |
| 1129 | |
| 1130 | return true; |
| 1131 | |
| 1132 | fail: |
| 1133 | aprint_error_dev(sc->sc_dev, "failed to register notify " |
| 1134 | "handler for %s (%p)\n" , ad->ad_name, ad->ad_handle); |
| 1135 | |
| 1136 | return false; |
| 1137 | } |
| 1138 | |
| 1139 | void |
| 1140 | acpi_deregister_notify(struct acpi_devnode *ad) |
| 1141 | { |
| 1142 | |
| 1143 | ad->ad_notify = NULL; |
| 1144 | } |
| 1145 | |
| 1146 | /* |
| 1147 | * Fixed buttons. |
| 1148 | */ |
| 1149 | static void |
| 1150 | acpi_register_fixed_button(struct acpi_softc *sc, int event) |
| 1151 | { |
| 1152 | struct sysmon_pswitch *smpsw; |
| 1153 | ACPI_STATUS rv; |
| 1154 | int type; |
| 1155 | |
| 1156 | switch (event) { |
| 1157 | |
| 1158 | case ACPI_EVENT_POWER_BUTTON: |
| 1159 | |
| 1160 | if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) |
| 1161 | return; |
| 1162 | |
| 1163 | type = PSWITCH_TYPE_POWER; |
| 1164 | smpsw = &sc->sc_smpsw_power; |
| 1165 | break; |
| 1166 | |
| 1167 | case ACPI_EVENT_SLEEP_BUTTON: |
| 1168 | |
| 1169 | if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) |
| 1170 | return; |
| 1171 | |
| 1172 | type = PSWITCH_TYPE_SLEEP; |
| 1173 | smpsw = &sc->sc_smpsw_sleep; |
| 1174 | break; |
| 1175 | |
| 1176 | default: |
| 1177 | rv = AE_TYPE; |
| 1178 | goto fail; |
| 1179 | } |
| 1180 | |
| 1181 | smpsw->smpsw_type = type; |
| 1182 | smpsw->smpsw_name = device_xname(sc->sc_dev); |
| 1183 | |
| 1184 | if (sysmon_pswitch_register(smpsw) != 0) { |
| 1185 | rv = AE_ERROR; |
| 1186 | goto fail; |
| 1187 | } |
| 1188 | |
| 1189 | AcpiClearEvent(event); |
| 1190 | |
| 1191 | rv = AcpiInstallFixedEventHandler(event, |
| 1192 | acpi_fixed_button_handler, smpsw); |
| 1193 | |
| 1194 | if (ACPI_FAILURE(rv)) { |
| 1195 | sysmon_pswitch_unregister(smpsw); |
| 1196 | goto fail; |
| 1197 | } |
| 1198 | |
| 1199 | aprint_debug_dev(sc->sc_dev, "fixed %s button present\n" , |
| 1200 | (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep" ); |
| 1201 | |
| 1202 | return; |
| 1203 | |
| 1204 | fail: |
| 1205 | aprint_error_dev(sc->sc_dev, "failed to register " |
| 1206 | "fixed event %d: %s\n" , event, AcpiFormatException(rv)); |
| 1207 | } |
| 1208 | |
| 1209 | static void |
| 1210 | acpi_deregister_fixed_button(struct acpi_softc *sc, int event) |
| 1211 | { |
| 1212 | struct sysmon_pswitch *smpsw; |
| 1213 | ACPI_STATUS rv; |
| 1214 | |
| 1215 | switch (event) { |
| 1216 | |
| 1217 | case ACPI_EVENT_POWER_BUTTON: |
| 1218 | smpsw = &sc->sc_smpsw_power; |
| 1219 | |
| 1220 | if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { |
| 1221 | KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); |
| 1222 | return; |
| 1223 | } |
| 1224 | |
| 1225 | break; |
| 1226 | |
| 1227 | case ACPI_EVENT_SLEEP_BUTTON: |
| 1228 | smpsw = &sc->sc_smpsw_sleep; |
| 1229 | |
| 1230 | if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { |
| 1231 | KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); |
| 1232 | return; |
| 1233 | } |
| 1234 | |
| 1235 | break; |
| 1236 | |
| 1237 | default: |
| 1238 | rv = AE_TYPE; |
| 1239 | goto fail; |
| 1240 | } |
| 1241 | |
| 1242 | rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); |
| 1243 | |
| 1244 | if (ACPI_SUCCESS(rv)) { |
| 1245 | sysmon_pswitch_unregister(smpsw); |
| 1246 | return; |
| 1247 | } |
| 1248 | |
| 1249 | fail: |
| 1250 | aprint_error_dev(sc->sc_dev, "failed to deregister " |
| 1251 | "fixed event: %s\n" , AcpiFormatException(rv)); |
| 1252 | } |
| 1253 | |
| 1254 | static uint32_t |
| 1255 | acpi_fixed_button_handler(void *context) |
| 1256 | { |
| 1257 | static const int handler = OSL_NOTIFY_HANDLER; |
| 1258 | struct sysmon_pswitch *smpsw = context; |
| 1259 | |
| 1260 | (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); |
| 1261 | |
| 1262 | return ACPI_INTERRUPT_HANDLED; |
| 1263 | } |
| 1264 | |
| 1265 | static void |
| 1266 | acpi_fixed_button_pressed(void *context) |
| 1267 | { |
| 1268 | struct sysmon_pswitch *smpsw = context; |
| 1269 | |
| 1270 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n" , |
| 1271 | (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? |
| 1272 | "power" : "sleep" )); |
| 1273 | |
| 1274 | sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); |
| 1275 | } |
| 1276 | |
| 1277 | /* |
| 1278 | * Sleep. |
| 1279 | */ |
| 1280 | static void |
| 1281 | acpi_sleep_init(struct acpi_softc *sc) |
| 1282 | { |
| 1283 | uint8_t a, b, i; |
| 1284 | ACPI_STATUS rv; |
| 1285 | |
| 1286 | CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); |
| 1287 | CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); |
| 1288 | CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); |
| 1289 | |
| 1290 | /* |
| 1291 | * Evaluate supported sleep states. |
| 1292 | */ |
| 1293 | for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { |
| 1294 | |
| 1295 | rv = AcpiGetSleepTypeData(i, &a, &b); |
| 1296 | |
| 1297 | if (ACPI_SUCCESS(rv)) |
| 1298 | sc->sc_sleepstates |= __BIT(i); |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | /* |
| 1303 | * Must be called with interrupts enabled. |
| 1304 | */ |
| 1305 | void |
| 1306 | acpi_enter_sleep_state(int state) |
| 1307 | { |
| 1308 | struct acpi_softc *sc = acpi_softc; |
| 1309 | ACPI_STATUS rv; |
| 1310 | |
| 1311 | if (acpi_softc == NULL) |
| 1312 | return; |
| 1313 | |
| 1314 | if (state == sc->sc_sleepstate) |
| 1315 | return; |
| 1316 | |
| 1317 | if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) |
| 1318 | return; |
| 1319 | |
| 1320 | aprint_normal_dev(sc->sc_dev, "entering state S%d\n" , state); |
| 1321 | |
| 1322 | switch (state) { |
| 1323 | |
| 1324 | case ACPI_STATE_S0: |
| 1325 | sc->sc_sleepstate = ACPI_STATE_S0; |
| 1326 | return; |
| 1327 | |
| 1328 | case ACPI_STATE_S1: |
| 1329 | case ACPI_STATE_S2: |
| 1330 | case ACPI_STATE_S3: |
| 1331 | case ACPI_STATE_S4: |
| 1332 | |
| 1333 | if ((sc->sc_sleepstates & __BIT(state)) == 0) { |
| 1334 | aprint_error_dev(sc->sc_dev, "sleep state " |
| 1335 | "S%d is not available\n" , state); |
| 1336 | return; |
| 1337 | } |
| 1338 | |
| 1339 | /* |
| 1340 | * Evaluate the _TTS method. This should be done before |
| 1341 | * pmf_system_suspend(9) and the evaluation of _PTS. |
| 1342 | * We should also re-evaluate this once we return to |
| 1343 | * S0 or if we abort the sleep state transition in the |
| 1344 | * middle (see ACPI 3.0, section 7.3.6). In reality, |
| 1345 | * however, the _TTS method is seldom seen in the field. |
| 1346 | */ |
| 1347 | rv = acpi_eval_set_integer(NULL, "\\_TTS" , state); |
| 1348 | |
| 1349 | if (ACPI_SUCCESS(rv)) |
| 1350 | aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n" ); |
| 1351 | |
| 1352 | if (state != ACPI_STATE_S1 && |
| 1353 | pmf_system_suspend(PMF_Q_NONE) != true) { |
| 1354 | aprint_error_dev(sc->sc_dev, "aborting suspend\n" ); |
| 1355 | break; |
| 1356 | } |
| 1357 | |
| 1358 | /* |
| 1359 | * This will evaluate the _PTS and _SST methods, |
| 1360 | * but unlike the documentation claims, not _GTS, |
| 1361 | * which is evaluated in AcpiEnterSleepState(). |
| 1362 | * This must be called with interrupts enabled. |
| 1363 | */ |
| 1364 | rv = AcpiEnterSleepStatePrep(state); |
| 1365 | |
| 1366 | if (ACPI_FAILURE(rv)) { |
| 1367 | aprint_error_dev(sc->sc_dev, "failed to prepare " |
| 1368 | "S%d: %s\n" , state, AcpiFormatException(rv)); |
| 1369 | break; |
| 1370 | } |
| 1371 | |
| 1372 | /* |
| 1373 | * After the _PTS method has been evaluated, we can |
| 1374 | * enable wake and evaluate _PSW (ACPI 4.0, p. 284). |
| 1375 | */ |
| 1376 | acpi_wakedev_commit(sc, state); |
| 1377 | |
| 1378 | sc->sc_sleepstate = state; |
| 1379 | |
| 1380 | if (state == ACPI_STATE_S1) { |
| 1381 | |
| 1382 | /* |
| 1383 | * Before the transition to S1, CPU caches |
| 1384 | * must be flushed (see ACPI 4.0, 7.3.4.2). |
| 1385 | * |
| 1386 | * Note that interrupts must be off before |
| 1387 | * calling AcpiEnterSleepState(). Conversely, |
| 1388 | * AcpiLeaveSleepState() should always be |
| 1389 | * called with interrupts enabled. |
| 1390 | */ |
| 1391 | acpi_md_OsDisableInterrupt(); |
| 1392 | |
| 1393 | ACPI_FLUSH_CPU_CACHE(); |
| 1394 | rv = AcpiEnterSleepState(state); |
| 1395 | |
| 1396 | if (ACPI_FAILURE(rv)) |
| 1397 | aprint_error_dev(sc->sc_dev, "failed to " |
| 1398 | "enter S1: %s\n" , AcpiFormatException(rv)); |
| 1399 | |
| 1400 | /* |
| 1401 | * Clear fixed events and disable all GPEs before |
| 1402 | * interrupts are enabled. |
| 1403 | */ |
| 1404 | AcpiClearEvent(ACPI_EVENT_PMTIMER); |
| 1405 | AcpiClearEvent(ACPI_EVENT_GLOBAL); |
| 1406 | AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); |
| 1407 | AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); |
| 1408 | AcpiClearEvent(ACPI_EVENT_RTC); |
| 1409 | AcpiHwDisableAllGpes(); |
| 1410 | |
| 1411 | acpi_md_OsEnableInterrupt(); |
| 1412 | rv = AcpiLeaveSleepState(state); |
| 1413 | |
| 1414 | } else { |
| 1415 | |
| 1416 | (void)acpi_md_sleep(state); |
| 1417 | |
| 1418 | if (state == ACPI_STATE_S4) |
| 1419 | AcpiEnable(); |
| 1420 | |
| 1421 | (void)pmf_system_bus_resume(PMF_Q_NONE); |
| 1422 | (void)AcpiLeaveSleepState(state); |
| 1423 | (void)AcpiSetFirmwareWakingVector(0, 0); |
| 1424 | (void)pmf_system_resume(PMF_Q_NONE); |
| 1425 | } |
| 1426 | |
| 1427 | /* |
| 1428 | * No wake GPEs should be enabled at runtime. |
| 1429 | */ |
| 1430 | acpi_wakedev_commit(sc, ACPI_STATE_S0); |
| 1431 | break; |
| 1432 | |
| 1433 | case ACPI_STATE_S5: |
| 1434 | |
| 1435 | (void)acpi_eval_set_integer(NULL, "\\_TTS" , ACPI_STATE_S5); |
| 1436 | |
| 1437 | rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); |
| 1438 | |
| 1439 | if (ACPI_FAILURE(rv)) { |
| 1440 | aprint_error_dev(sc->sc_dev, "failed to prepare " |
| 1441 | "S%d: %s\n" , state, AcpiFormatException(rv)); |
| 1442 | break; |
| 1443 | } |
| 1444 | |
| 1445 | (void)AcpiDisableAllGpes(); |
| 1446 | |
| 1447 | DELAY(1000000); |
| 1448 | |
| 1449 | sc->sc_sleepstate = state; |
| 1450 | acpi_md_OsDisableInterrupt(); |
| 1451 | |
| 1452 | (void)AcpiEnterSleepState(ACPI_STATE_S5); |
| 1453 | |
| 1454 | aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n" ); |
| 1455 | |
| 1456 | break; |
| 1457 | } |
| 1458 | |
| 1459 | sc->sc_sleepstate = ACPI_STATE_S0; |
| 1460 | |
| 1461 | (void)acpi_eval_set_integer(NULL, "\\_TTS" , ACPI_STATE_S0); |
| 1462 | } |
| 1463 | |
| 1464 | /* |
| 1465 | * Sysctl. |
| 1466 | */ |
| 1467 | SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup" ) |
| 1468 | { |
| 1469 | const struct sysctlnode *rnode, *snode; |
| 1470 | int err; |
| 1471 | |
| 1472 | err = sysctl_createv(clog, 0, NULL, &rnode, |
| 1473 | CTLFLAG_PERMANENT, CTLTYPE_NODE, |
| 1474 | "acpi" , SYSCTL_DESCR("ACPI subsystem parameters" ), |
| 1475 | NULL, 0, NULL, 0, |
| 1476 | CTL_HW, CTL_CREATE, CTL_EOL); |
| 1477 | |
| 1478 | if (err != 0) |
| 1479 | return; |
| 1480 | |
| 1481 | (void)sysctl_createv(NULL, 0, &rnode, NULL, |
| 1482 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, |
| 1483 | "root" , SYSCTL_DESCR("ACPI root pointer" ), |
| 1484 | NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), |
| 1485 | CTL_CREATE, CTL_EOL); |
| 1486 | |
| 1487 | err = sysctl_createv(clog, 0, &rnode, &snode, |
| 1488 | CTLFLAG_PERMANENT, CTLTYPE_NODE, |
| 1489 | "sleep" , SYSCTL_DESCR("ACPI sleep" ), |
| 1490 | NULL, 0, NULL, 0, |
| 1491 | CTL_CREATE, CTL_EOL); |
| 1492 | |
| 1493 | if (err != 0) |
| 1494 | return; |
| 1495 | |
| 1496 | (void)sysctl_createv(NULL, 0, &snode, NULL, |
| 1497 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, |
| 1498 | "state" , SYSCTL_DESCR("System sleep state" ), |
| 1499 | sysctl_hw_acpi_sleepstate, 0, NULL, 0, |
| 1500 | CTL_CREATE, CTL_EOL); |
| 1501 | |
| 1502 | (void)sysctl_createv(NULL, 0, &snode, NULL, |
| 1503 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, |
| 1504 | "states" , SYSCTL_DESCR("Supported sleep states" ), |
| 1505 | sysctl_hw_acpi_sleepstates, 0, NULL, 0, |
| 1506 | CTL_CREATE, CTL_EOL); |
| 1507 | |
| 1508 | err = sysctl_createv(clog, 0, &rnode, &rnode, |
| 1509 | CTLFLAG_PERMANENT, CTLTYPE_NODE, |
| 1510 | "stat" , SYSCTL_DESCR("ACPI statistics" ), |
| 1511 | NULL, 0, NULL, 0, |
| 1512 | CTL_CREATE, CTL_EOL); |
| 1513 | |
| 1514 | if (err != 0) |
| 1515 | return; |
| 1516 | |
| 1517 | (void)sysctl_createv(clog, 0, &rnode, NULL, |
| 1518 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, |
| 1519 | "gpe" , SYSCTL_DESCR("Number of dispatched GPEs" ), |
| 1520 | NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), |
| 1521 | CTL_CREATE, CTL_EOL); |
| 1522 | |
| 1523 | (void)sysctl_createv(clog, 0, &rnode, NULL, |
| 1524 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, |
| 1525 | "sci" , SYSCTL_DESCR("Number of SCI interrupts" ), |
| 1526 | NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), |
| 1527 | CTL_CREATE, CTL_EOL); |
| 1528 | |
| 1529 | (void)sysctl_createv(clog, 0, &rnode, NULL, |
| 1530 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, |
| 1531 | "fixed" , SYSCTL_DESCR("Number of fixed events" ), |
| 1532 | sysctl_hw_acpi_fixedstats, 0, NULL, 0, |
| 1533 | CTL_CREATE, CTL_EOL); |
| 1534 | |
| 1535 | (void)sysctl_createv(clog, 0, &rnode, NULL, |
| 1536 | CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, |
| 1537 | "method" , SYSCTL_DESCR("Number of methods executed" ), |
| 1538 | NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), |
| 1539 | CTL_CREATE, CTL_EOL); |
| 1540 | |
| 1541 | CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); |
| 1542 | CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); |
| 1543 | } |
| 1544 | |
| 1545 | static int |
| 1546 | sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) |
| 1547 | { |
| 1548 | struct sysctlnode node; |
| 1549 | uint64_t t; |
| 1550 | int err, i; |
| 1551 | |
| 1552 | for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) |
| 1553 | t += AcpiFixedEventCount[i]; |
| 1554 | |
| 1555 | node = *rnode; |
| 1556 | node.sysctl_data = &t; |
| 1557 | |
| 1558 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 1559 | |
| 1560 | if (err || newp == NULL) |
| 1561 | return err; |
| 1562 | |
| 1563 | return 0; |
| 1564 | } |
| 1565 | |
| 1566 | static int |
| 1567 | sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) |
| 1568 | { |
| 1569 | struct acpi_softc *sc = acpi_softc; |
| 1570 | struct sysctlnode node; |
| 1571 | int err, t; |
| 1572 | |
| 1573 | if (acpi_softc == NULL) |
| 1574 | return ENOSYS; |
| 1575 | |
| 1576 | node = *rnode; |
| 1577 | t = sc->sc_sleepstate; |
| 1578 | node.sysctl_data = &t; |
| 1579 | |
| 1580 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 1581 | |
| 1582 | if (err || newp == NULL) |
| 1583 | return err; |
| 1584 | |
| 1585 | if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) |
| 1586 | return EINVAL; |
| 1587 | |
| 1588 | acpi_enter_sleep_state(t); |
| 1589 | |
| 1590 | return 0; |
| 1591 | } |
| 1592 | |
| 1593 | static int |
| 1594 | sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) |
| 1595 | { |
| 1596 | struct acpi_softc *sc = acpi_softc; |
| 1597 | struct sysctlnode node; |
| 1598 | char t[3 * 6 + 1]; |
| 1599 | int err; |
| 1600 | |
| 1601 | if (acpi_softc == NULL) |
| 1602 | return ENOSYS; |
| 1603 | |
| 1604 | (void)memset(t, '\0', sizeof(t)); |
| 1605 | |
| 1606 | (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s" , |
| 1607 | ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "" , |
| 1608 | ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "" , |
| 1609 | ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "" , |
| 1610 | ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "" , |
| 1611 | ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "" , |
| 1612 | ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : "" ); |
| 1613 | |
| 1614 | node = *rnode; |
| 1615 | node.sysctl_data = &t; |
| 1616 | |
| 1617 | err = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 1618 | |
| 1619 | if (err || newp == NULL) |
| 1620 | return err; |
| 1621 | |
| 1622 | return 0; |
| 1623 | } |
| 1624 | |
| 1625 | /* |
| 1626 | * Tables. |
| 1627 | */ |
| 1628 | ACPI_PHYSICAL_ADDRESS |
| 1629 | acpi_OsGetRootPointer(void) |
| 1630 | { |
| 1631 | ACPI_PHYSICAL_ADDRESS PhysicalAddress; |
| 1632 | |
| 1633 | /* |
| 1634 | * We let MD code handle this since there are multiple ways to do it: |
| 1635 | * |
| 1636 | * IA-32: Use AcpiFindRootPointer() to locate the RSDP. |
| 1637 | * |
| 1638 | * IA-64: Use the EFI. |
| 1639 | */ |
| 1640 | PhysicalAddress = acpi_md_OsGetRootPointer(); |
| 1641 | |
| 1642 | if (acpi_root_pointer == 0) |
| 1643 | acpi_root_pointer = PhysicalAddress; |
| 1644 | |
| 1645 | return PhysicalAddress; |
| 1646 | } |
| 1647 | |
| 1648 | static ACPI_TABLE_HEADER * |
| 1649 | acpi_map_rsdt(void) |
| 1650 | { |
| 1651 | ACPI_PHYSICAL_ADDRESS paddr; |
| 1652 | ACPI_TABLE_RSDP *rsdp; |
| 1653 | |
| 1654 | paddr = AcpiOsGetRootPointer(); |
| 1655 | |
| 1656 | if (paddr == 0) |
| 1657 | return NULL; |
| 1658 | |
| 1659 | rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); |
| 1660 | |
| 1661 | if (rsdp == NULL) |
| 1662 | return NULL; |
| 1663 | |
| 1664 | if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) |
| 1665 | paddr = rsdp->XsdtPhysicalAddress; |
| 1666 | else |
| 1667 | paddr = rsdp->RsdtPhysicalAddress; |
| 1668 | |
| 1669 | AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); |
| 1670 | |
| 1671 | return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); |
| 1672 | } |
| 1673 | |
| 1674 | /* |
| 1675 | * XXX: Refactor to be a generic function that unmaps tables. |
| 1676 | */ |
| 1677 | static void |
| 1678 | acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) |
| 1679 | { |
| 1680 | |
| 1681 | if (rsdt == NULL) |
| 1682 | return; |
| 1683 | |
| 1684 | AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); |
| 1685 | } |
| 1686 | |
| 1687 | /* |
| 1688 | * XXX: Refactor to be a generic function that maps tables. |
| 1689 | */ |
| 1690 | ACPI_STATUS |
| 1691 | acpi_madt_map(void) |
| 1692 | { |
| 1693 | ACPI_STATUS rv; |
| 1694 | |
| 1695 | if (madt_header != NULL) |
| 1696 | return AE_ALREADY_EXISTS; |
| 1697 | |
| 1698 | rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); |
| 1699 | |
| 1700 | if (ACPI_FAILURE(rv)) |
| 1701 | return rv; |
| 1702 | |
| 1703 | return AE_OK; |
| 1704 | } |
| 1705 | |
| 1706 | void |
| 1707 | acpi_madt_unmap(void) |
| 1708 | { |
| 1709 | madt_header = NULL; |
| 1710 | } |
| 1711 | |
| 1712 | /* |
| 1713 | * XXX: Refactor to be a generic function that walks tables. |
| 1714 | */ |
| 1715 | void |
| 1716 | acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) |
| 1717 | { |
| 1718 | ACPI_SUBTABLE_HEADER *hdrp; |
| 1719 | char *madtend, *where; |
| 1720 | |
| 1721 | madtend = (char *)madt_header + madt_header->Length; |
| 1722 | where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); |
| 1723 | |
| 1724 | while (where < madtend) { |
| 1725 | |
| 1726 | hdrp = (ACPI_SUBTABLE_HEADER *)where; |
| 1727 | |
| 1728 | if (ACPI_FAILURE(func(hdrp, aux))) |
| 1729 | break; |
| 1730 | |
| 1731 | where += hdrp->Length; |
| 1732 | } |
| 1733 | } |
| 1734 | |
| 1735 | /* |
| 1736 | * Miscellaneous. |
| 1737 | */ |
| 1738 | static bool |
| 1739 | acpi_is_scope(struct acpi_devnode *ad) |
| 1740 | { |
| 1741 | int i; |
| 1742 | |
| 1743 | /* |
| 1744 | * Return true if the node is a root scope. |
| 1745 | */ |
| 1746 | if (ad->ad_parent == NULL) |
| 1747 | return false; |
| 1748 | |
| 1749 | if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) |
| 1750 | return false; |
| 1751 | |
| 1752 | for (i = 0; i < __arraycount(acpi_scopes); i++) { |
| 1753 | |
| 1754 | if (acpi_scopes[i] == NULL) |
| 1755 | continue; |
| 1756 | |
| 1757 | if (ad->ad_handle == acpi_scopes[i]) |
| 1758 | return true; |
| 1759 | } |
| 1760 | |
| 1761 | return false; |
| 1762 | } |
| 1763 | |
| 1764 | /* |
| 1765 | * ACPIVERBOSE. |
| 1766 | */ |
| 1767 | void |
| 1768 | acpi_load_verbose(void) |
| 1769 | { |
| 1770 | |
| 1771 | if (acpi_verbose_loaded == 0) |
| 1772 | module_autoload("acpiverbose" , MODULE_CLASS_MISC); |
| 1773 | } |
| 1774 | |
| 1775 | void |
| 1776 | acpi_print_verbose_stub(struct acpi_softc *sc) |
| 1777 | { |
| 1778 | |
| 1779 | acpi_load_verbose(); |
| 1780 | |
| 1781 | if (acpi_verbose_loaded != 0) |
| 1782 | acpi_print_verbose(sc); |
| 1783 | } |
| 1784 | |
| 1785 | void |
| 1786 | acpi_print_dev_stub(const char *pnpstr) |
| 1787 | { |
| 1788 | |
| 1789 | acpi_load_verbose(); |
| 1790 | |
| 1791 | if (acpi_verbose_loaded != 0) |
| 1792 | acpi_print_dev(pnpstr); |
| 1793 | } |
| 1794 | |
| 1795 | MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ |
| 1796 | |
| 1797 | /* |
| 1798 | * ACPI_ACTIVATE_DEV. |
| 1799 | */ |
| 1800 | static void |
| 1801 | acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) |
| 1802 | { |
| 1803 | |
| 1804 | #ifndef ACPI_ACTIVATE_DEV |
| 1805 | return; |
| 1806 | } |
| 1807 | #else |
| 1808 | static const int valid = ACPI_VALID_STA | ACPI_VALID_HID; |
| 1809 | ACPI_DEVICE_INFO *newdi; |
| 1810 | ACPI_STATUS rv; |
| 1811 | uint32_t old; |
| 1812 | |
| 1813 | /* |
| 1814 | * If the device is valid and present, |
| 1815 | * but not enabled, try to activate it. |
| 1816 | */ |
| 1817 | if (((*di)->Valid & valid) != valid) |
| 1818 | return; |
| 1819 | |
| 1820 | old = (*di)->CurrentStatus; |
| 1821 | |
| 1822 | if ((old & (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED)) != |
| 1823 | ACPI_STA_DEVICE_PRESENT) |
| 1824 | return; |
| 1825 | |
| 1826 | rv = acpi_allocate_resources(handle); |
| 1827 | |
| 1828 | if (ACPI_FAILURE(rv)) |
| 1829 | goto fail; |
| 1830 | |
| 1831 | rv = AcpiGetObjectInfo(handle, &newdi); |
| 1832 | |
| 1833 | if (ACPI_FAILURE(rv)) |
| 1834 | goto fail; |
| 1835 | |
| 1836 | ACPI_FREE(*di); |
| 1837 | *di = newdi; |
| 1838 | |
| 1839 | aprint_verbose_dev(acpi_softc->sc_dev, |
| 1840 | "%s activated, STA 0x%08X -> STA 0x%08X\n" , |
| 1841 | (*di)->HardwareId.String, old, (*di)->CurrentStatus); |
| 1842 | |
| 1843 | return; |
| 1844 | |
| 1845 | fail: |
| 1846 | aprint_error_dev(acpi_softc->sc_dev, "failed to " |
| 1847 | "activate %s\n" , (*di)->HardwareId.String); |
| 1848 | } |
| 1849 | |
| 1850 | /* |
| 1851 | * XXX: This very incomplete. |
| 1852 | */ |
| 1853 | ACPI_STATUS |
| 1854 | acpi_allocate_resources(ACPI_HANDLE handle) |
| 1855 | { |
| 1856 | ACPI_BUFFER bufp, bufc, bufn; |
| 1857 | ACPI_RESOURCE *resp, *resc, *resn; |
| 1858 | ACPI_RESOURCE_IRQ *irq; |
| 1859 | #if 0 |
| 1860 | ACPI_RESOURCE_EXTENDED_IRQ *xirq; |
| 1861 | #endif |
| 1862 | ACPI_STATUS rv; |
| 1863 | uint delta; |
| 1864 | |
| 1865 | rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); |
| 1866 | if (ACPI_FAILURE(rv)) |
| 1867 | goto out; |
| 1868 | rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); |
| 1869 | if (ACPI_FAILURE(rv)) { |
| 1870 | goto out1; |
| 1871 | } |
| 1872 | |
| 1873 | bufn.Length = 1000; |
| 1874 | bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); |
| 1875 | resp = bufp.Pointer; |
| 1876 | resc = bufc.Pointer; |
| 1877 | while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && |
| 1878 | resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { |
| 1879 | while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) |
| 1880 | resp = ACPI_NEXT_RESOURCE(resp); |
| 1881 | if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) |
| 1882 | break; |
| 1883 | /* Found identical Id */ |
| 1884 | resn->Type = resc->Type; |
| 1885 | switch (resc->Type) { |
| 1886 | case ACPI_RESOURCE_TYPE_IRQ: |
| 1887 | memcpy(&resn->Data, &resp->Data, |
| 1888 | sizeof(ACPI_RESOURCE_IRQ)); |
| 1889 | irq = (ACPI_RESOURCE_IRQ *)&resn->Data; |
| 1890 | irq->Interrupts[0] = |
| 1891 | ((ACPI_RESOURCE_IRQ *)&resp->Data)-> |
| 1892 | Interrupts[irq->InterruptCount-1]; |
| 1893 | irq->InterruptCount = 1; |
| 1894 | resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); |
| 1895 | break; |
| 1896 | case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: |
| 1897 | memcpy(&resn->Data, &resp->Data, |
| 1898 | sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); |
| 1899 | #if 0 |
| 1900 | xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; |
| 1901 | /* |
| 1902 | * XXX: Not duplicating the interrupt logic above |
| 1903 | * because its not clear what it accomplishes. |
| 1904 | */ |
| 1905 | xirq->Interrupts[0] = |
| 1906 | ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> |
| 1907 | Interrupts[irq->NumberOfInterrupts-1]; |
| 1908 | xirq->NumberOfInterrupts = 1; |
| 1909 | #endif |
| 1910 | resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); |
| 1911 | break; |
| 1912 | case ACPI_RESOURCE_TYPE_IO: |
| 1913 | memcpy(&resn->Data, &resp->Data, |
| 1914 | sizeof(ACPI_RESOURCE_IO)); |
| 1915 | resn->Length = resp->Length; |
| 1916 | break; |
| 1917 | default: |
| 1918 | aprint_error_dev(acpi_softc->sc_dev, |
| 1919 | "%s: invalid type %u\n" , __func__, resc->Type); |
| 1920 | rv = AE_BAD_DATA; |
| 1921 | goto out2; |
| 1922 | } |
| 1923 | resc = ACPI_NEXT_RESOURCE(resc); |
| 1924 | resn = ACPI_NEXT_RESOURCE(resn); |
| 1925 | resp = ACPI_NEXT_RESOURCE(resp); |
| 1926 | delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; |
| 1927 | if (delta >= |
| 1928 | bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { |
| 1929 | bufn.Length *= 2; |
| 1930 | bufn.Pointer = realloc(bufn.Pointer, bufn.Length, |
| 1931 | M_ACPI, M_WAITOK); |
| 1932 | resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + |
| 1933 | delta); |
| 1934 | } |
| 1935 | } |
| 1936 | |
| 1937 | if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { |
| 1938 | aprint_error_dev(acpi_softc->sc_dev, |
| 1939 | "%s: resc not exhausted\n" , __func__); |
| 1940 | rv = AE_BAD_DATA; |
| 1941 | goto out3; |
| 1942 | } |
| 1943 | |
| 1944 | resn->Type = ACPI_RESOURCE_TYPE_END_TAG; |
| 1945 | rv = AcpiSetCurrentResources(handle, &bufn); |
| 1946 | |
| 1947 | if (ACPI_FAILURE(rv)) |
| 1948 | aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " |
| 1949 | "resources: %s\n" , __func__, AcpiFormatException(rv)); |
| 1950 | |
| 1951 | out3: |
| 1952 | free(bufn.Pointer, M_ACPI); |
| 1953 | out2: |
| 1954 | ACPI_FREE(bufc.Pointer); |
| 1955 | out1: |
| 1956 | ACPI_FREE(bufp.Pointer); |
| 1957 | out: |
| 1958 | return rv; |
| 1959 | } |
| 1960 | |
| 1961 | #endif /* ACPI_ACTIVATE_DEV */ |
| 1962 | |