115e32d5dSMike Smith /*- 215e32d5dSMike Smith * Copyright (c) 2000 Takanori Watanabe <takawata@jp.freebsd.org> 315e32d5dSMike Smith * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org> 4cb9b0d80SMike Smith * Copyright (c) 2000, 2001 Michael Smith 515e32d5dSMike Smith * Copyright (c) 2000 BSDi 615e32d5dSMike Smith * All rights reserved. 715e32d5dSMike Smith * 815e32d5dSMike Smith * Redistribution and use in source and binary forms, with or without 915e32d5dSMike Smith * modification, are permitted provided that the following conditions 1015e32d5dSMike Smith * are met: 1115e32d5dSMike Smith * 1. Redistributions of source code must retain the above copyright 1215e32d5dSMike Smith * notice, this list of conditions and the following disclaimer. 1315e32d5dSMike Smith * 2. Redistributions in binary form must reproduce the above copyright 1415e32d5dSMike Smith * notice, this list of conditions and the following disclaimer in the 1515e32d5dSMike Smith * documentation and/or other materials provided with the distribution. 1615e32d5dSMike Smith * 1715e32d5dSMike Smith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1815e32d5dSMike Smith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1915e32d5dSMike Smith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2015e32d5dSMike Smith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2115e32d5dSMike Smith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2215e32d5dSMike Smith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2315e32d5dSMike Smith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2415e32d5dSMike Smith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2515e32d5dSMike Smith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2615e32d5dSMike Smith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2715e32d5dSMike Smith * SUCH DAMAGE. 2815e32d5dSMike Smith */ 2915e32d5dSMike Smith 30dad97feeSDavid E. O'Brien #include <sys/cdefs.h> 31dad97feeSDavid E. O'Brien __FBSDID("$FreeBSD$"); 32dad97feeSDavid E. O'Brien 3315e32d5dSMike Smith #include "opt_acpi.h" 3415e32d5dSMike Smith #include <sys/param.h> 3515e32d5dSMike Smith #include <sys/kernel.h> 36fb919e4dSMark Murray #include <sys/proc.h> 37a89fcf28STakanori Watanabe #include <sys/fcntl.h> 3815e32d5dSMike Smith #include <sys/malloc.h> 39fe12f24bSPoul-Henning Kamp #include <sys/module.h> 4015e32d5dSMike Smith #include <sys/bus.h> 4115e32d5dSMike Smith #include <sys/conf.h> 4215e32d5dSMike Smith #include <sys/ioccom.h> 4315e32d5dSMike Smith #include <sys/reboot.h> 4415e32d5dSMike Smith #include <sys/sysctl.h> 4515e32d5dSMike Smith #include <sys/ctype.h> 461611ea87SMitsuru IWASAKI #include <sys/linker.h> 47f9390180SMitsuru IWASAKI #include <sys/power.h> 4854f6bca0SNate Lawson #include <sys/sbuf.h> 49c66d2b38SJung-uk Kim #include <sys/sched.h> 50eeb3a05fSNate Lawson #include <sys/smp.h> 51c66d2b38SJung-uk Kim #include <sys/timetc.h> 5215e32d5dSMike Smith 53d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 54d320e05cSJohn Baldwin #include <machine/pci_cfgreg.h> 55d320e05cSJohn Baldwin #endif 5615e32d5dSMike Smith #include <machine/resource.h> 57dc750869SNate Lawson #include <machine/bus.h> 58dc750869SNate Lawson #include <sys/rman.h> 59bc0f2195SMike Smith #include <isa/isavar.h> 60c796e27bSNate Lawson #include <isa/pnpvar.h> 61bc0f2195SMike Smith 62129d3046SJung-uk Kim #include <contrib/dev/acpica/include/acpi.h> 63129d3046SJung-uk Kim #include <contrib/dev/acpica/include/accommon.h> 64129d3046SJung-uk Kim #include <contrib/dev/acpica/include/acnamesp.h> 65129d3046SJung-uk Kim 6615e32d5dSMike Smith #include <dev/acpica/acpivar.h> 6715e32d5dSMike Smith #include <dev/acpica/acpiio.h> 6815e32d5dSMike Smith 692be4e471SJung-uk Kim #include <vm/vm_param.h> 702be4e471SJung-uk Kim 71d745c852SEd Schouten static MALLOC_DEFINE(M_ACPIDEV, "acpidev", "ACPI devices"); 7215e32d5dSMike Smith 73be2b1797SNate Lawson /* Hooks for the ACPI CA debugging infrastructure */ 74cb9b0d80SMike Smith #define _COMPONENT ACPI_BUS 75b53f2771SMike Smith ACPI_MODULE_NAME("ACPI") 760ae55423SMike Smith 7715e32d5dSMike Smith static d_open_t acpiopen; 7815e32d5dSMike Smith static d_close_t acpiclose; 7915e32d5dSMike Smith static d_ioctl_t acpiioctl; 8015e32d5dSMike Smith 8115e32d5dSMike Smith static struct cdevsw acpi_cdevsw = { 82dc08ffecSPoul-Henning Kamp .d_version = D_VERSION, 837ac40f5fSPoul-Henning Kamp .d_open = acpiopen, 847ac40f5fSPoul-Henning Kamp .d_close = acpiclose, 857ac40f5fSPoul-Henning Kamp .d_ioctl = acpiioctl, 867ac40f5fSPoul-Henning Kamp .d_name = "acpi", 8715e32d5dSMike Smith }; 8815e32d5dSMike Smith 89ae19af49SJung-uk Kim struct acpi_interface { 90ae19af49SJung-uk Kim ACPI_STRING *data; 91ae19af49SJung-uk Kim int num; 92ae19af49SJung-uk Kim }; 93ae19af49SJung-uk Kim 94346eda4fSNate Lawson /* Global mutex for locking access to the ACPI subsystem. */ 95cb9b0d80SMike Smith struct mtx acpi_mutex; 96cb9b0d80SMike Smith 9789fb5af8SNate Lawson /* Bitmap of device quirks. */ 9889fb5af8SNate Lawson int acpi_quirks; 9989fb5af8SNate Lawson 100a0e73a12SJung-uk Kim /* Supported sleep states. */ 101a0e73a12SJung-uk Kim static BOOLEAN acpi_sleep_states[ACPI_S_STATE_COUNT]; 102a0e73a12SJung-uk Kim 1036d63101aSMike Smith static int acpi_modevent(struct module *mod, int event, void *junk); 10415e32d5dSMike Smith static int acpi_probe(device_t dev); 10515e32d5dSMike Smith static int acpi_attach(device_t dev); 10610ce62b9SNate Lawson static int acpi_suspend(device_t dev); 10710ce62b9SNate Lawson static int acpi_resume(device_t dev); 108169b539aSNate Lawson static int acpi_shutdown(device_t dev); 1093d844eddSAndriy Gapon static device_t acpi_add_child(device_t bus, u_int order, const char *name, 110be2b1797SNate Lawson int unit); 11115e32d5dSMike Smith static int acpi_print_child(device_t bus, device_t child); 11210ce62b9SNate Lawson static void acpi_probe_nomatch(device_t bus, device_t child); 11310ce62b9SNate Lawson static void acpi_driver_added(device_t dev, driver_t *driver); 114be2b1797SNate Lawson static int acpi_read_ivar(device_t dev, device_t child, int index, 115be2b1797SNate Lawson uintptr_t *result); 116be2b1797SNate Lawson static int acpi_write_ivar(device_t dev, device_t child, int index, 117be2b1797SNate Lawson uintptr_t value); 11891233413SNate Lawson static struct resource_list *acpi_get_rlist(device_t dev, device_t child); 119ea233199SJohn Baldwin static void acpi_reserve_resources(device_t dev); 120adad4744SNate Lawson static int acpi_sysres_alloc(device_t dev); 121ea233199SJohn Baldwin static int acpi_set_resource(device_t dev, device_t child, int type, 122ea233199SJohn Baldwin int rid, u_long start, u_long count); 123be2b1797SNate Lawson static struct resource *acpi_alloc_resource(device_t bus, device_t child, 124be2b1797SNate Lawson int type, int *rid, u_long start, u_long end, 125be2b1797SNate Lawson u_long count, u_int flags); 126049dc0d1SJohn Baldwin static int acpi_adjust_resource(device_t bus, device_t child, int type, 127049dc0d1SJohn Baldwin struct resource *r, u_long start, u_long end); 128be2b1797SNate Lawson static int acpi_release_resource(device_t bus, device_t child, int type, 129be2b1797SNate Lawson int rid, struct resource *r); 1308b28b622SNate Lawson static void acpi_delete_resource(device_t bus, device_t child, int type, 1318b28b622SNate Lawson int rid); 1321e4925e8SNate Lawson static uint32_t acpi_isa_get_logicalid(device_t dev); 1331e4925e8SNate Lawson static int acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count); 134ce619b2eSNate Lawson static char *acpi_device_id_probe(device_t bus, device_t dev, char **ids); 135ce619b2eSNate Lawson static ACPI_STATUS acpi_device_eval_obj(device_t bus, device_t dev, 136ce619b2eSNate Lawson ACPI_STRING pathname, ACPI_OBJECT_LIST *parameters, 137ce619b2eSNate Lawson ACPI_BUFFER *ret); 138df8d2a32SNate Lawson static ACPI_STATUS acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, 139df8d2a32SNate Lawson void *context, void **retval); 140df8d2a32SNate Lawson static ACPI_STATUS acpi_device_scan_children(device_t bus, device_t dev, 141df8d2a32SNate Lawson int max_depth, acpi_scan_cb_t user_fn, void *arg); 142a7a3177fSJung-uk Kim static int acpi_set_powerstate(device_t child, int state); 143be2b1797SNate Lawson static int acpi_isa_pnp_probe(device_t bus, device_t child, 144be2b1797SNate Lawson struct isa_pnp_id *ids); 14515e32d5dSMike Smith static void acpi_probe_children(device_t bus); 146d227204dSJohn Baldwin static void acpi_probe_order(ACPI_HANDLE handle, int *order); 147be2b1797SNate Lawson static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level, 148be2b1797SNate Lawson void *context, void **status); 149a0e73a12SJung-uk Kim static void acpi_sleep_enable(void *arg); 150a0e73a12SJung-uk Kim static ACPI_STATUS acpi_sleep_disable(struct acpi_softc *sc); 15100a30448SNate Lawson static ACPI_STATUS acpi_EnterSleepState(struct acpi_softc *sc, int state); 15215e32d5dSMike Smith static void acpi_shutdown_final(void *arg, int howto); 15313d4f7baSMitsuru IWASAKI static void acpi_enable_fixed_events(struct acpi_softc *sc); 154183c8af3SJohn Baldwin static BOOLEAN acpi_has_hid(ACPI_HANDLE handle); 155a0a15716SJung-uk Kim static void acpi_resync_clock(struct acpi_softc *sc); 156d4b9ff91SNate Lawson static int acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate); 157d4b9ff91SNate Lawson static int acpi_wake_run_prep(ACPI_HANDLE handle, int sstate); 158d4b9ff91SNate Lawson static int acpi_wake_prep_walk(int sstate); 15988a79fc0SNate Lawson static int acpi_wake_sysctl_walk(device_t dev); 16088a79fc0SNate Lawson static int acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS); 16115e32d5dSMike Smith static void acpi_system_eventhandler_sleep(void *arg, int state); 16215e32d5dSMike Smith static void acpi_system_eventhandler_wakeup(void *arg, int state); 163a0e73a12SJung-uk Kim static int acpi_sname2sstate(const char *sname); 164a0e73a12SJung-uk Kim static const char *acpi_sstate2sname(int sstate); 165d75de536SMitsuru IWASAKI static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); 1661d073b1dSJohn Baldwin static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); 1672a18c71dSJung-uk Kim static int acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS); 168f9390180SMitsuru IWASAKI static int acpi_pm_func(u_long cmd, void *arg, ...); 169879d6c23STakanori Watanabe static int acpi_child_location_str_method(device_t acdev, device_t child, 170879d6c23STakanori Watanabe char *buf, size_t buflen); 171879d6c23STakanori Watanabe static int acpi_child_pnpinfo_str_method(device_t acdev, device_t child, 172879d6c23STakanori Watanabe char *buf, size_t buflen); 173d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 174d320e05cSJohn Baldwin static void acpi_enable_pcie(void); 175d320e05cSJohn Baldwin #endif 1760d484d24SJohn Baldwin static void acpi_hint_device_unit(device_t acdev, device_t child, 1770d484d24SJohn Baldwin const char *name, int *unitp); 178ae19af49SJung-uk Kim static void acpi_reset_interfaces(device_t dev); 179879d6c23STakanori Watanabe 18015e32d5dSMike Smith static device_method_t acpi_methods[] = { 18115e32d5dSMike Smith /* Device interface */ 18215e32d5dSMike Smith DEVMETHOD(device_probe, acpi_probe), 18315e32d5dSMike Smith DEVMETHOD(device_attach, acpi_attach), 184169b539aSNate Lawson DEVMETHOD(device_shutdown, acpi_shutdown), 18556a70eadSNate Lawson DEVMETHOD(device_detach, bus_generic_detach), 18610ce62b9SNate Lawson DEVMETHOD(device_suspend, acpi_suspend), 18710ce62b9SNate Lawson DEVMETHOD(device_resume, acpi_resume), 18815e32d5dSMike Smith 18915e32d5dSMike Smith /* Bus interface */ 19015e32d5dSMike Smith DEVMETHOD(bus_add_child, acpi_add_child), 19115e32d5dSMike Smith DEVMETHOD(bus_print_child, acpi_print_child), 19210ce62b9SNate Lawson DEVMETHOD(bus_probe_nomatch, acpi_probe_nomatch), 19310ce62b9SNate Lawson DEVMETHOD(bus_driver_added, acpi_driver_added), 19415e32d5dSMike Smith DEVMETHOD(bus_read_ivar, acpi_read_ivar), 19515e32d5dSMike Smith DEVMETHOD(bus_write_ivar, acpi_write_ivar), 19691233413SNate Lawson DEVMETHOD(bus_get_resource_list, acpi_get_rlist), 197ea233199SJohn Baldwin DEVMETHOD(bus_set_resource, acpi_set_resource), 19891233413SNate Lawson DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 19915e32d5dSMike Smith DEVMETHOD(bus_alloc_resource, acpi_alloc_resource), 200049dc0d1SJohn Baldwin DEVMETHOD(bus_adjust_resource, acpi_adjust_resource), 20115e32d5dSMike Smith DEVMETHOD(bus_release_resource, acpi_release_resource), 2028b28b622SNate Lawson DEVMETHOD(bus_delete_resource, acpi_delete_resource), 203879d6c23STakanori Watanabe DEVMETHOD(bus_child_pnpinfo_str, acpi_child_pnpinfo_str_method), 204879d6c23STakanori Watanabe DEVMETHOD(bus_child_location_str, acpi_child_location_str_method), 20515e32d5dSMike Smith DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 20615e32d5dSMike Smith DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 20715e32d5dSMike Smith DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 20815e32d5dSMike Smith DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 2090d484d24SJohn Baldwin DEVMETHOD(bus_hint_device_unit, acpi_hint_device_unit), 21015e32d5dSMike Smith 211ce619b2eSNate Lawson /* ACPI bus */ 212ce619b2eSNate Lawson DEVMETHOD(acpi_id_probe, acpi_device_id_probe), 213ce619b2eSNate Lawson DEVMETHOD(acpi_evaluate_object, acpi_device_eval_obj), 21410ce62b9SNate Lawson DEVMETHOD(acpi_pwr_for_sleep, acpi_device_pwr_for_sleep), 215df8d2a32SNate Lawson DEVMETHOD(acpi_scan_children, acpi_device_scan_children), 216ce619b2eSNate Lawson 217bc0f2195SMike Smith /* ISA emulation */ 218bc0f2195SMike Smith DEVMETHOD(isa_pnp_probe, acpi_isa_pnp_probe), 219bc0f2195SMike Smith 22061bfd867SSofian Brabez DEVMETHOD_END 22115e32d5dSMike Smith }; 22215e32d5dSMike Smith 22315e32d5dSMike Smith static driver_t acpi_driver = { 22415e32d5dSMike Smith "acpi", 22515e32d5dSMike Smith acpi_methods, 22615e32d5dSMike Smith sizeof(struct acpi_softc), 22715e32d5dSMike Smith }; 22815e32d5dSMike Smith 2293273b005SMike Smith static devclass_t acpi_devclass; 2306d63101aSMike Smith DRIVER_MODULE(acpi, nexus, acpi_driver, acpi_devclass, acpi_modevent, 0); 231a4ecd543SNate Lawson MODULE_VERSION(acpi, 1); 23215e32d5dSMike Smith 23315e2f34fSNate Lawson ACPI_SERIAL_DECL(acpi, "ACPI root bus"); 23415e2f34fSNate Lawson 235adad4744SNate Lawson /* Local pools for managing system resources for ACPI child devices. */ 236adad4744SNate Lawson static struct rman acpi_rman_io, acpi_rman_mem; 237adad4744SNate Lawson 238bee4aa4aSNate Lawson #define ACPI_MINIMUM_AWAKETIME 5 239bee4aa4aSNate Lawson 2405217af30SJohn Baldwin /* Holds the description of the acpi0 device. */ 2415217af30SJohn Baldwin static char acpi_desc[ACPI_OEM_ID_SIZE + ACPI_OEM_TABLE_ID_SIZE + 2]; 2425217af30SJohn Baldwin 243197b4dccSNate Lawson SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD, NULL, "ACPI debugging"); 2441d7b121cSNate Lawson static char acpi_ca_version[12]; 2451d7b121cSNate Lawson SYSCTL_STRING(_debug_acpi, OID_AUTO, acpi_ca_version, CTLFLAG_RD, 2461d7b121cSNate Lawson acpi_ca_version, 0, "Version of Intel ACPI-CA"); 24715e32d5dSMike Smith 24815e32d5dSMike Smith /* 249ae19af49SJung-uk Kim * Allow overriding _OSI methods. 250ae19af49SJung-uk Kim */ 251ae19af49SJung-uk Kim static char acpi_install_interface[256]; 252ae19af49SJung-uk Kim TUNABLE_STR("hw.acpi.install_interface", acpi_install_interface, 253ae19af49SJung-uk Kim sizeof(acpi_install_interface)); 254ae19af49SJung-uk Kim static char acpi_remove_interface[256]; 255ae19af49SJung-uk Kim TUNABLE_STR("hw.acpi.remove_interface", acpi_remove_interface, 256ae19af49SJung-uk Kim sizeof(acpi_remove_interface)); 257ae19af49SJung-uk Kim 258ae19af49SJung-uk Kim /* 259413081d7SNate Lawson * Allow override of whether methods execute in parallel or not. 260c9b8d77dSNate Lawson * Enable this for serial behavior, which fixes "AE_ALREADY_EXISTS" 261c9b8d77dSNate Lawson * errors for AML that really can't handle parallel method execution. 262c9b8d77dSNate Lawson * It is off by default since this breaks recursive methods and 263c9b8d77dSNate Lawson * some IBMs use such code. 264413081d7SNate Lawson */ 265c9b8d77dSNate Lawson static int acpi_serialize_methods; 266413081d7SNate Lawson TUNABLE_INT("hw.acpi.serialize_methods", &acpi_serialize_methods); 267413081d7SNate Lawson 2682a18c71dSJung-uk Kim /* Allow users to dump Debug objects without ACPI debugger. */ 2692a18c71dSJung-uk Kim static int acpi_debug_objects; 2702a18c71dSJung-uk Kim TUNABLE_INT("debug.acpi.enable_debug_objects", &acpi_debug_objects); 2712a18c71dSJung-uk Kim SYSCTL_PROC(_debug_acpi, OID_AUTO, enable_debug_objects, 2722a18c71dSJung-uk Kim CTLFLAG_RW | CTLTYPE_INT, NULL, 0, acpi_debug_objects_sysctl, "I", 2732a18c71dSJung-uk Kim "Enable Debug objects"); 2742a18c71dSJung-uk Kim 2752a18c71dSJung-uk Kim /* Allow the interpreter to ignore common mistakes in BIOS. */ 2762a18c71dSJung-uk Kim static int acpi_interpreter_slack = 1; 2772a18c71dSJung-uk Kim TUNABLE_INT("debug.acpi.interpreter_slack", &acpi_interpreter_slack); 2782a18c71dSJung-uk Kim SYSCTL_INT(_debug_acpi, OID_AUTO, interpreter_slack, CTLFLAG_RDTUN, 2792a18c71dSJung-uk Kim &acpi_interpreter_slack, 1, "Turn on interpreter slack mode."); 2802a18c71dSJung-uk Kim 281ebbed20dSAndriy Gapon #ifdef __amd64__ 2820755473bSJung-uk Kim /* Reset system clock while resuming. XXX Remove once tested. */ 2830755473bSJung-uk Kim static int acpi_reset_clock = 1; 2840755473bSJung-uk Kim TUNABLE_INT("debug.acpi.reset_clock", &acpi_reset_clock); 2850755473bSJung-uk Kim SYSCTL_INT(_debug_acpi, OID_AUTO, reset_clock, CTLFLAG_RW, 2860755473bSJung-uk Kim &acpi_reset_clock, 1, "Reset system clock while resuming."); 287a0a15716SJung-uk Kim #endif 2880755473bSJung-uk Kim 28939da3eb3SNate Lawson /* Allow users to override quirks. */ 29039da3eb3SNate Lawson TUNABLE_INT("debug.acpi.quirks", &acpi_quirks); 29139da3eb3SNate Lawson 29293bfd059SNate Lawson static int acpi_susp_bounce; 29393bfd059SNate Lawson SYSCTL_INT(_debug_acpi, OID_AUTO, suspend_bounce, CTLFLAG_RW, 29493bfd059SNate Lawson &acpi_susp_bounce, 0, "Don't actually suspend, just test devices."); 29593bfd059SNate Lawson 296c9b8d77dSNate Lawson /* 2976d63101aSMike Smith * ACPI can only be loaded as a module by the loader; activating it after 2986d63101aSMike Smith * system bootstrap time is not useful, and can be fatal to the system. 2998c0879b6SJohn Baldwin * It also cannot be unloaded, since the entire system bus hierarchy hangs 300be2b1797SNate Lawson * off it. 3016d63101aSMike Smith */ 3026d63101aSMike Smith static int 3036d63101aSMike Smith acpi_modevent(struct module *mod, int event, void *junk) 3046d63101aSMike Smith { 3056d63101aSMike Smith switch (event) { 3066d63101aSMike Smith case MOD_LOAD: 30787b45ed5SMitsuru IWASAKI if (!cold) { 30887b45ed5SMitsuru IWASAKI printf("The ACPI driver cannot be loaded after boot.\n"); 3096d63101aSMike Smith return (EPERM); 31087b45ed5SMitsuru IWASAKI } 3116d63101aSMike Smith break; 3126d63101aSMike Smith case MOD_UNLOAD: 313f9390180SMitsuru IWASAKI if (!cold && power_pm_get_type() == POWER_PM_TYPE_ACPI) 3146d63101aSMike Smith return (EBUSY); 315f9390180SMitsuru IWASAKI break; 3166d63101aSMike Smith default: 3176d63101aSMike Smith break; 3186d63101aSMike Smith } 3196d63101aSMike Smith return (0); 3206d63101aSMike Smith } 3216d63101aSMike Smith 3226d63101aSMike Smith /* 323bbc2815cSJohn Baldwin * Perform early initialization. 32415e32d5dSMike Smith */ 325bbc2815cSJohn Baldwin ACPI_STATUS 326bbc2815cSJohn Baldwin acpi_Startup(void) 32715e32d5dSMike Smith { 32889fb5af8SNate Lawson static int started = 0; 3292be4e471SJung-uk Kim ACPI_STATUS status; 3302be4e471SJung-uk Kim int val; 33115e32d5dSMike Smith 3321b8c233dSPeter Pentchev ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 3331b8c233dSPeter Pentchev 334bee4aa4aSNate Lawson /* Only run the startup code once. The MADT driver also calls this. */ 335bbc2815cSJohn Baldwin if (started) 3362be4e471SJung-uk Kim return_VALUE (AE_OK); 337bbc2815cSJohn Baldwin started = 1; 33815e32d5dSMike Smith 339413081d7SNate Lawson /* 3402be4e471SJung-uk Kim * Pre-allocate space for RSDT/XSDT and DSDT tables and allow resizing 3412be4e471SJung-uk Kim * if more tables exist. 342413081d7SNate Lawson */ 3432be4e471SJung-uk Kim if (ACPI_FAILURE(status = AcpiInitializeTables(NULL, 2, TRUE))) { 3442be4e471SJung-uk Kim printf("ACPI: Table initialisation failed: %s\n", 3452be4e471SJung-uk Kim AcpiFormatException(status)); 3462be4e471SJung-uk Kim return_VALUE (status); 34715e32d5dSMike Smith } 3483184cf5aSNate Lawson 34989fb5af8SNate Lawson /* Set up any quirks we have for this system. */ 3502be4e471SJung-uk Kim if (acpi_quirks == ACPI_Q_OK) 35189fb5af8SNate Lawson acpi_table_quirks(&acpi_quirks); 35289fb5af8SNate Lawson 35339da3eb3SNate Lawson /* If the user manually set the disabled hint to 0, force-enable ACPI. */ 35489fb5af8SNate Lawson if (resource_int_value("acpi", 0, "disabled", &val) == 0 && val == 0) 35589fb5af8SNate Lawson acpi_quirks &= ~ACPI_Q_BROKEN; 35689fb5af8SNate Lawson if (acpi_quirks & ACPI_Q_BROKEN) { 35789fb5af8SNate Lawson printf("ACPI disabled by blacklist. Contact your BIOS vendor.\n"); 3582be4e471SJung-uk Kim status = AE_SUPPORT; 35989fb5af8SNate Lawson } 3603184cf5aSNate Lawson 3612be4e471SJung-uk Kim return_VALUE (status); 362bbc2815cSJohn Baldwin } 363bbc2815cSJohn Baldwin 364bbc2815cSJohn Baldwin /* 3655217af30SJohn Baldwin * Detect ACPI and perform early initialisation. 366bbc2815cSJohn Baldwin */ 3675217af30SJohn Baldwin int 3685217af30SJohn Baldwin acpi_identify(void) 369bbc2815cSJohn Baldwin { 3705217af30SJohn Baldwin ACPI_TABLE_RSDP *rsdp; 3715217af30SJohn Baldwin ACPI_TABLE_HEADER *rsdt; 3725217af30SJohn Baldwin ACPI_PHYSICAL_ADDRESS paddr; 3735217af30SJohn Baldwin struct sbuf sb; 374bbc2815cSJohn Baldwin 375bbc2815cSJohn Baldwin ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 376bbc2815cSJohn Baldwin 377bbc2815cSJohn Baldwin if (!cold) 3785217af30SJohn Baldwin return (ENXIO); 379bbc2815cSJohn Baldwin 380a8de37b0SEitan Adler /* Check that we haven't been disabled with a hint. */ 381a8de37b0SEitan Adler if (resource_disabled("acpi", 0)) 382a8de37b0SEitan Adler return (ENXIO); 383a8de37b0SEitan Adler 3845217af30SJohn Baldwin /* Check for other PM systems. */ 3855217af30SJohn Baldwin if (power_pm_get_type() != POWER_PM_TYPE_NONE && 3865217af30SJohn Baldwin power_pm_get_type() != POWER_PM_TYPE_ACPI) { 3875217af30SJohn Baldwin printf("ACPI identify failed, other PM system enabled.\n"); 3885217af30SJohn Baldwin return (ENXIO); 3895217af30SJohn Baldwin } 3904b1ff978SMark Santcroos 3912be4e471SJung-uk Kim /* Initialize root tables. */ 3922be4e471SJung-uk Kim if (ACPI_FAILURE(acpi_Startup())) { 3932be4e471SJung-uk Kim printf("ACPI: Try disabling either ACPI or apic support.\n"); 3945217af30SJohn Baldwin return (ENXIO); 3952be4e471SJung-uk Kim } 39615e32d5dSMike Smith 3975217af30SJohn Baldwin if ((paddr = AcpiOsGetRootPointer()) == 0 || 3985217af30SJohn Baldwin (rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP))) == NULL) 3995217af30SJohn Baldwin return (ENXIO); 4005217af30SJohn Baldwin if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress != 0) 4015217af30SJohn Baldwin paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 4025217af30SJohn Baldwin else 4035217af30SJohn Baldwin paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 4045217af30SJohn Baldwin AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 4055217af30SJohn Baldwin 4065217af30SJohn Baldwin if ((rsdt = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER))) == NULL) 4075217af30SJohn Baldwin return (ENXIO); 4085217af30SJohn Baldwin sbuf_new(&sb, acpi_desc, sizeof(acpi_desc), SBUF_FIXEDLEN); 4095217af30SJohn Baldwin sbuf_bcat(&sb, rsdt->OemId, ACPI_OEM_ID_SIZE); 4105217af30SJohn Baldwin sbuf_trim(&sb); 4115217af30SJohn Baldwin sbuf_putc(&sb, ' '); 4125217af30SJohn Baldwin sbuf_bcat(&sb, rsdt->OemTableId, ACPI_OEM_TABLE_ID_SIZE); 4135217af30SJohn Baldwin sbuf_trim(&sb); 4145217af30SJohn Baldwin sbuf_finish(&sb); 4155217af30SJohn Baldwin sbuf_delete(&sb); 4165217af30SJohn Baldwin AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 4175217af30SJohn Baldwin 4185217af30SJohn Baldwin snprintf(acpi_ca_version, sizeof(acpi_ca_version), "%x", ACPI_CA_VERSION); 4195217af30SJohn Baldwin 4205217af30SJohn Baldwin return (0); 42115e32d5dSMike Smith } 42215e32d5dSMike Smith 42315e32d5dSMike Smith /* 424bee4aa4aSNate Lawson * Fetch some descriptive data from ACPI to put in our attach message. 42515e32d5dSMike Smith */ 42615e32d5dSMike Smith static int 42715e32d5dSMike Smith acpi_probe(device_t dev) 42815e32d5dSMike Smith { 42915e32d5dSMike Smith 430b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 431f9390180SMitsuru IWASAKI 4325217af30SJohn Baldwin device_set_desc(dev, acpi_desc); 433bee4aa4aSNate Lawson 434feeec74dSNathan Whitehorn return_VALUE (BUS_PROBE_NOWILDCARD); 43515e32d5dSMike Smith } 43615e32d5dSMike Smith 43715e32d5dSMike Smith static int 43815e32d5dSMike Smith acpi_attach(device_t dev) 43915e32d5dSMike Smith { 44015e32d5dSMike Smith struct acpi_softc *sc; 441cb9b0d80SMike Smith ACPI_STATUS status; 442ea27c63eSNate Lawson int error, state; 44332d18aa5SMike Smith UINT32 flags; 444ea27c63eSNate Lawson UINT8 TypeA, TypeB; 445498d464fSMitsuru IWASAKI char *env; 44615e32d5dSMike Smith 447b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 448bee4aa4aSNate Lawson 44915e32d5dSMike Smith sc = device_get_softc(dev); 45015e32d5dSMike Smith sc->acpi_dev = dev; 45100a30448SNate Lawson callout_init(&sc->susp_force_to, TRUE); 45215e32d5dSMike Smith 4532be4e471SJung-uk Kim error = ENXIO; 4542be4e471SJung-uk Kim 45591233413SNate Lawson /* Initialize resource manager. */ 45691233413SNate Lawson acpi_rman_io.rm_type = RMAN_ARRAY; 45791233413SNate Lawson acpi_rman_io.rm_start = 0; 45891233413SNate Lawson acpi_rman_io.rm_end = 0xffff; 4590bba6acfSJohn Baldwin acpi_rman_io.rm_descr = "ACPI I/O ports"; 46091233413SNate Lawson if (rman_init(&acpi_rman_io) != 0) 46191233413SNate Lawson panic("acpi rman_init IO ports failed"); 46291233413SNate Lawson acpi_rman_mem.rm_type = RMAN_ARRAY; 46391233413SNate Lawson acpi_rman_mem.rm_start = 0; 46491233413SNate Lawson acpi_rman_mem.rm_end = ~0ul; 4650bba6acfSJohn Baldwin acpi_rman_mem.rm_descr = "ACPI I/O memory addresses"; 46691233413SNate Lawson if (rman_init(&acpi_rman_mem) != 0) 46791233413SNate Lawson panic("acpi rman_init memory failed"); 46891233413SNate Lawson 4692be4e471SJung-uk Kim /* Initialise the ACPI mutex */ 4702be4e471SJung-uk Kim mtx_init(&acpi_mutex, "ACPI global lock", NULL, MTX_DEF); 4712be4e471SJung-uk Kim 4722be4e471SJung-uk Kim /* 4732be4e471SJung-uk Kim * Set the globals from our tunables. This is needed because ACPI-CA 4742be4e471SJung-uk Kim * uses UINT8 for some values and we have no tunable_byte. 4752be4e471SJung-uk Kim */ 4762a18c71dSJung-uk Kim AcpiGbl_AllMethodsSerialized = acpi_serialize_methods ? TRUE : FALSE; 4772a18c71dSJung-uk Kim AcpiGbl_EnableInterpreterSlack = acpi_interpreter_slack ? TRUE : FALSE; 4782a18c71dSJung-uk Kim AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE; 4792a18c71dSJung-uk Kim 4802a18c71dSJung-uk Kim #ifndef ACPI_DEBUG 4812a18c71dSJung-uk Kim /* 4822a18c71dSJung-uk Kim * Disable all debugging layers and levels. 4832a18c71dSJung-uk Kim */ 4842a18c71dSJung-uk Kim AcpiDbgLayer = 0; 4852a18c71dSJung-uk Kim AcpiDbgLevel = 0; 4862a18c71dSJung-uk Kim #endif 4872be4e471SJung-uk Kim 4882be4e471SJung-uk Kim /* Start up the ACPI CA subsystem. */ 4892be4e471SJung-uk Kim status = AcpiInitializeSubsystem(); 4902be4e471SJung-uk Kim if (ACPI_FAILURE(status)) { 4912be4e471SJung-uk Kim device_printf(dev, "Could not initialize Subsystem: %s\n", 4922be4e471SJung-uk Kim AcpiFormatException(status)); 4932be4e471SJung-uk Kim goto out; 4942be4e471SJung-uk Kim } 4952be4e471SJung-uk Kim 496ae19af49SJung-uk Kim /* Override OS interfaces if the user requested. */ 497ae19af49SJung-uk Kim acpi_reset_interfaces(dev); 498ae19af49SJung-uk Kim 4992be4e471SJung-uk Kim /* Load ACPI name space. */ 5002be4e471SJung-uk Kim status = AcpiLoadTables(); 5012be4e471SJung-uk Kim if (ACPI_FAILURE(status)) { 5022be4e471SJung-uk Kim device_printf(dev, "Could not load Namespace: %s\n", 5032be4e471SJung-uk Kim AcpiFormatException(status)); 5042be4e471SJung-uk Kim goto out; 5052be4e471SJung-uk Kim } 5062be4e471SJung-uk Kim 507d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 508d320e05cSJohn Baldwin /* Handle MCFG table if present. */ 509d320e05cSJohn Baldwin acpi_enable_pcie(); 510d320e05cSJohn Baldwin #endif 511d320e05cSJohn Baldwin 51215e32d5dSMike Smith /* 513be2b1797SNate Lawson * Note that some systems (specifically, those with namespace evaluation 514be2b1797SNate Lawson * issues that require the avoidance of parts of the namespace) must 515be2b1797SNate Lawson * avoid running _INI and _STA on everything, as well as dodging the final 516be2b1797SNate Lawson * object init pass. 51715e32d5dSMike Smith * 51832d18aa5SMike Smith * For these devices, we set ACPI_NO_DEVICE_INIT and ACPI_NO_OBJECT_INIT). 51932d18aa5SMike Smith * 520be2b1797SNate Lawson * XXX We should arrange for the object init pass after we have attached 521be2b1797SNate Lawson * all our child devices, but on many systems it works here. 52215e32d5dSMike Smith */ 52332d18aa5SMike Smith flags = 0; 524d786139cSMaxime Henrion if (testenv("debug.acpi.avoid")) 52532d18aa5SMike Smith flags = ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT; 526bee4aa4aSNate Lawson 527bee4aa4aSNate Lawson /* Bring the hardware and basic handlers online. */ 528b53f2771SMike Smith if (ACPI_FAILURE(status = AcpiEnableSubsystem(flags))) { 529be2b1797SNate Lawson device_printf(dev, "Could not enable ACPI: %s\n", 530be2b1797SNate Lawson AcpiFormatException(status)); 531cb9b0d80SMike Smith goto out; 53215e32d5dSMike Smith } 53315e32d5dSMike Smith 534f8335e3aSNate Lawson /* 535f8335e3aSNate Lawson * Call the ECDT probe function to provide EC functionality before 536f8335e3aSNate Lawson * the namespace has been evaluated. 537da72d149SNate Lawson * 538da72d149SNate Lawson * XXX This happens before the sysresource devices have been probed and 539da72d149SNate Lawson * attached so its resources come from nexus0. In practice, this isn't 540da72d149SNate Lawson * a problem but should be addressed eventually. 541f8335e3aSNate Lawson */ 542f8335e3aSNate Lawson acpi_ec_ecdt_probe(dev); 543f8335e3aSNate Lawson 544bee4aa4aSNate Lawson /* Bring device objects and regions online. */ 545b69ed3f4SMitsuru IWASAKI if (ACPI_FAILURE(status = AcpiInitializeObjects(flags))) { 546be2b1797SNate Lawson device_printf(dev, "Could not initialize ACPI objects: %s\n", 547be2b1797SNate Lawson AcpiFormatException(status)); 548b69ed3f4SMitsuru IWASAKI goto out; 549b69ed3f4SMitsuru IWASAKI } 550b69ed3f4SMitsuru IWASAKI 55115e32d5dSMike Smith /* 5521d073b1dSJohn Baldwin * Setup our sysctl tree. 5531d073b1dSJohn Baldwin * 5541d073b1dSJohn Baldwin * XXX: This doesn't check to make sure that none of these fail. 5551d073b1dSJohn Baldwin */ 5561d073b1dSJohn Baldwin sysctl_ctx_init(&sc->acpi_sysctl_ctx); 5571d073b1dSJohn Baldwin sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx, 5581d073b1dSJohn Baldwin SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 5591d073b1dSJohn Baldwin device_get_name(dev), CTLFLAG_RD, 0, ""); 5601d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 561d75de536SMitsuru IWASAKI OID_AUTO, "supported_sleep_state", CTLTYPE_STRING | CTLFLAG_RD, 562d75de536SMitsuru IWASAKI 0, 0, acpi_supported_sleep_state_sysctl, "A", ""); 563d75de536SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5641d073b1dSJohn Baldwin OID_AUTO, "power_button_state", CTLTYPE_STRING | CTLFLAG_RW, 5651d073b1dSJohn Baldwin &sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5661d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5671d073b1dSJohn Baldwin OID_AUTO, "sleep_button_state", CTLTYPE_STRING | CTLFLAG_RW, 5681d073b1dSJohn Baldwin &sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5691d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5701d073b1dSJohn Baldwin OID_AUTO, "lid_switch_state", CTLTYPE_STRING | CTLFLAG_RW, 5711d073b1dSJohn Baldwin &sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A", ""); 572f86214b6SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 573f86214b6SMitsuru IWASAKI OID_AUTO, "standby_state", CTLTYPE_STRING | CTLFLAG_RW, 574f86214b6SMitsuru IWASAKI &sc->acpi_standby_sx, 0, acpi_sleep_state_sysctl, "A", ""); 575f86214b6SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 576f86214b6SMitsuru IWASAKI OID_AUTO, "suspend_state", CTLTYPE_STRING | CTLFLAG_RW, 577f86214b6SMitsuru IWASAKI &sc->acpi_suspend_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5782d644607SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 579197b4dccSNate Lawson OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0, 58031f301d0SChristian Brueffer "sleep delay in seconds"); 581ff01efb5SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 582197b4dccSNate Lawson OID_AUTO, "s4bios", CTLFLAG_RW, &sc->acpi_s4bios, 0, "S4BIOS mode"); 5831611ea87SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 584197b4dccSNate Lawson OID_AUTO, "verbose", CTLFLAG_RW, &sc->acpi_verbose, 0, "verbose mode"); 585d85e6785SNate Lawson SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 586d85e6785SNate Lawson OID_AUTO, "disable_on_reboot", CTLFLAG_RW, 587d85e6785SNate Lawson &sc->acpi_do_disable, 0, "Disable ACPI when rebooting/halting system"); 588d1b16e18SNate Lawson SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 589d1b16e18SNate Lawson OID_AUTO, "handle_reboot", CTLFLAG_RW, 590d1b16e18SNate Lawson &sc->acpi_handle_reboot, 0, "Use ACPI Reset Register to reboot"); 591bf0c18ecSNate Lawson 592bf0c18ecSNate Lawson /* 5932b9609abSNate Lawson * Default to 1 second before sleeping to give some machines time to 594bf0c18ecSNate Lawson * stabilize. 595bf0c18ecSNate Lawson */ 5962b9609abSNate Lawson sc->acpi_sleep_delay = 1; 5972d644607SMitsuru IWASAKI if (bootverbose) 5982d644607SMitsuru IWASAKI sc->acpi_verbose = 1; 599965a34fbSNate Lawson if ((env = getenv("hw.acpi.verbose")) != NULL) { 600965a34fbSNate Lawson if (strcmp(env, "0") != 0) 601498d464fSMitsuru IWASAKI sc->acpi_verbose = 1; 602498d464fSMitsuru IWASAKI freeenv(env); 603498d464fSMitsuru IWASAKI } 6041d073b1dSJohn Baldwin 605ac731af5SJung-uk Kim /* Only enable reboot by default if the FADT says it is available. */ 606ac731af5SJung-uk Kim if (AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) 607ac731af5SJung-uk Kim sc->acpi_handle_reboot = 1; 608ac731af5SJung-uk Kim 6092d610c46SNate Lawson /* Only enable S4BIOS by default if the FACS says it is available. */ 610129d3046SJung-uk Kim if (AcpiGbl_FACS->Flags & ACPI_FACS_S4_BIOS_PRESENT) 6112d610c46SNate Lawson sc->acpi_s4bios = 1; 6122d610c46SNate Lawson 613a0e73a12SJung-uk Kim /* Probe all supported sleep states. */ 614a0e73a12SJung-uk Kim acpi_sleep_states[ACPI_STATE_S0] = TRUE; 615a0e73a12SJung-uk Kim for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++) 616efcc2a30SJung-uk Kim if (ACPI_SUCCESS(AcpiEvaluateObject(ACPI_ROOT_OBJECT, 617efcc2a30SJung-uk Kim __DECONST(char *, AcpiGbl_SleepStateNames[state]), NULL, NULL)) && 618efcc2a30SJung-uk Kim ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB))) 619a0e73a12SJung-uk Kim acpi_sleep_states[state] = TRUE; 620a0e73a12SJung-uk Kim 6211d073b1dSJohn Baldwin /* 622ea27c63eSNate Lawson * Dispatch the default sleep state to devices. The lid switch is set 623a0e73a12SJung-uk Kim * to UNKNOWN by default to avoid surprising users. 62415e32d5dSMike Smith */ 625a0e73a12SJung-uk Kim sc->acpi_power_button_sx = acpi_sleep_states[ACPI_STATE_S5] ? 626a0e73a12SJung-uk Kim ACPI_STATE_S5 : ACPI_STATE_UNKNOWN; 627a0e73a12SJung-uk Kim sc->acpi_lid_switch_sx = ACPI_STATE_UNKNOWN; 628a0e73a12SJung-uk Kim sc->acpi_standby_sx = acpi_sleep_states[ACPI_STATE_S1] ? 629a0e73a12SJung-uk Kim ACPI_STATE_S1 : ACPI_STATE_UNKNOWN; 630a0e73a12SJung-uk Kim sc->acpi_suspend_sx = acpi_sleep_states[ACPI_STATE_S3] ? 631a0e73a12SJung-uk Kim ACPI_STATE_S3 : ACPI_STATE_UNKNOWN; 63215e32d5dSMike Smith 633ea27c63eSNate Lawson /* Pick the first valid sleep state for the sleep button default. */ 634a0e73a12SJung-uk Kim sc->acpi_sleep_button_sx = ACPI_STATE_UNKNOWN; 63500a30448SNate Lawson for (state = ACPI_STATE_S1; state <= ACPI_STATE_S4; state++) 636a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) { 637ea27c63eSNate Lawson sc->acpi_sleep_button_sx = state; 638ea27c63eSNate Lawson break; 639ea27c63eSNate Lawson } 640ea27c63eSNate Lawson 64113d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(sc); 64215e32d5dSMike Smith 64315e32d5dSMike Smith /* 64415e32d5dSMike Smith * Scan the namespace and attach/initialise children. 64515e32d5dSMike Smith */ 64615e32d5dSMike Smith 64759e472e9SNate Lawson /* Register our shutdown handler. */ 648be2b1797SNate Lawson EVENTHANDLER_REGISTER(shutdown_final, acpi_shutdown_final, sc, 649be2b1797SNate Lawson SHUTDOWN_PRI_LAST); 65015e32d5dSMike Smith 65115e32d5dSMike Smith /* 65215e32d5dSMike Smith * Register our acpi event handlers. 65315e32d5dSMike Smith * XXX should be configurable eg. via userland policy manager. 65415e32d5dSMike Smith */ 655be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_sleep_event, acpi_system_eventhandler_sleep, 656be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 657be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_wakeup_event, acpi_system_eventhandler_wakeup, 658be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 65915e32d5dSMike Smith 660be2b1797SNate Lawson /* Flag our initial states. */ 661a0e73a12SJung-uk Kim sc->acpi_enabled = TRUE; 66215e32d5dSMike Smith sc->acpi_sstate = ACPI_STATE_S0; 663a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 66415e32d5dSMike Smith 665be2b1797SNate Lawson /* Create the control device */ 666a89fcf28STakanori Watanabe sc->acpi_dev_t = make_dev(&acpi_cdevsw, 0, UID_ROOT, GID_WHEEL, 0644, 6672a4689e8SRobert Watson "acpi"); 66815e32d5dSMike Smith sc->acpi_dev_t->si_drv1 = sc; 66915e32d5dSMike Smith 670be2b1797SNate Lawson if ((error = acpi_machdep_init(dev))) 671f86214b6SMitsuru IWASAKI goto out; 672f86214b6SMitsuru IWASAKI 673f9390180SMitsuru IWASAKI /* Register ACPI again to pass the correct argument of pm_func. */ 674f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, sc); 675f9390180SMitsuru IWASAKI 676eeb6dba2SJohn Baldwin if (!acpi_disabled("bus")) 677eeb6dba2SJohn Baldwin acpi_probe_children(dev); 678eeb6dba2SJohn Baldwin 6795a77b11bSJung-uk Kim /* Update all GPEs and enable runtime GPEs. */ 6805a77b11bSJung-uk Kim status = AcpiUpdateAllGpes(); 6815a77b11bSJung-uk Kim if (ACPI_FAILURE(status)) 6825a77b11bSJung-uk Kim device_printf(dev, "Could not update all GPEs: %s\n", 6835a77b11bSJung-uk Kim AcpiFormatException(status)); 6845a77b11bSJung-uk Kim 685a0e73a12SJung-uk Kim /* Allow sleep request after a while. */ 686a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 687a0e73a12SJung-uk Kim 688cb9b0d80SMike Smith error = 0; 689cb9b0d80SMike Smith 690cb9b0d80SMike Smith out: 691cb9b0d80SMike Smith return_VALUE (error); 69215e32d5dSMike Smith } 69315e32d5dSMike Smith 694a7a3177fSJung-uk Kim static void 695a7a3177fSJung-uk Kim acpi_set_power_children(device_t dev, int state) 696a7a3177fSJung-uk Kim { 697a7a3177fSJung-uk Kim device_t child, parent; 698a7a3177fSJung-uk Kim device_t *devlist; 699a7a3177fSJung-uk Kim int dstate, i, numdevs; 700a7a3177fSJung-uk Kim 701a7a3177fSJung-uk Kim if (device_get_children(dev, &devlist, &numdevs) != 0) 702a7a3177fSJung-uk Kim return; 703a7a3177fSJung-uk Kim 704a7a3177fSJung-uk Kim /* 705a7a3177fSJung-uk Kim * Retrieve and set D-state for the sleep state if _SxD is present. 706a7a3177fSJung-uk Kim * Skip children who aren't attached since they are handled separately. 707a7a3177fSJung-uk Kim */ 708a7a3177fSJung-uk Kim parent = device_get_parent(dev); 709a7a3177fSJung-uk Kim for (i = 0; i < numdevs; i++) { 710a7a3177fSJung-uk Kim child = devlist[i]; 711a7a3177fSJung-uk Kim dstate = state; 712a7a3177fSJung-uk Kim if (device_is_attached(child) && 713a7a3177fSJung-uk Kim acpi_device_pwr_for_sleep(parent, dev, &dstate) == 0) 714a7a3177fSJung-uk Kim acpi_set_powerstate(child, dstate); 715a7a3177fSJung-uk Kim } 716a7a3177fSJung-uk Kim free(devlist, M_TEMP); 717a7a3177fSJung-uk Kim } 718a7a3177fSJung-uk Kim 719169b539aSNate Lawson static int 72010ce62b9SNate Lawson acpi_suspend(device_t dev) 72110ce62b9SNate Lawson { 722a7a3177fSJung-uk Kim int error; 72310ce62b9SNate Lawson 724a56fe095SJohn Baldwin GIANT_REQUIRED; 725a56fe095SJohn Baldwin 72610ce62b9SNate Lawson error = bus_generic_suspend(dev); 727a7a3177fSJung-uk Kim if (error == 0) 728a7a3177fSJung-uk Kim acpi_set_power_children(dev, ACPI_STATE_D3); 72910ce62b9SNate Lawson 73010ce62b9SNate Lawson return (error); 73110ce62b9SNate Lawson } 73210ce62b9SNate Lawson 73310ce62b9SNate Lawson static int 73410ce62b9SNate Lawson acpi_resume(device_t dev) 73510ce62b9SNate Lawson { 73610ce62b9SNate Lawson 737a56fe095SJohn Baldwin GIANT_REQUIRED; 738a56fe095SJohn Baldwin 739a7a3177fSJung-uk Kim acpi_set_power_children(dev, ACPI_STATE_D0); 74010ce62b9SNate Lawson 74110ce62b9SNate Lawson return (bus_generic_resume(dev)); 74210ce62b9SNate Lawson } 74310ce62b9SNate Lawson 74410ce62b9SNate Lawson static int 745169b539aSNate Lawson acpi_shutdown(device_t dev) 746169b539aSNate Lawson { 747169b539aSNate Lawson 748a56fe095SJohn Baldwin GIANT_REQUIRED; 749a56fe095SJohn Baldwin 7500e414868SNate Lawson /* Allow children to shutdown first. */ 7510e414868SNate Lawson bus_generic_shutdown(dev); 7520e414868SNate Lawson 753bee4aa4aSNate Lawson /* 754bee4aa4aSNate Lawson * Enable any GPEs that are able to power-on the system (i.e., RTC). 755bee4aa4aSNate Lawson * Also, disable any that are not valid for this state (most). 756bee4aa4aSNate Lawson */ 757d4b9ff91SNate Lawson acpi_wake_prep_walk(ACPI_STATE_S5); 758d4b9ff91SNate Lawson 759169b539aSNate Lawson return (0); 760169b539aSNate Lawson } 761169b539aSNate Lawson 76215e32d5dSMike Smith /* 76315e32d5dSMike Smith * Handle a new device being added 76415e32d5dSMike Smith */ 76515e32d5dSMike Smith static device_t 7663d844eddSAndriy Gapon acpi_add_child(device_t bus, u_int order, const char *name, int unit) 76715e32d5dSMike Smith { 76815e32d5dSMike Smith struct acpi_device *ad; 76915e32d5dSMike Smith device_t child; 77015e32d5dSMike Smith 771be2b1797SNate Lawson if ((ad = malloc(sizeof(*ad), M_ACPIDEV, M_NOWAIT | M_ZERO)) == NULL) 77215e32d5dSMike Smith return (NULL); 77315e32d5dSMike Smith 77415e32d5dSMike Smith resource_list_init(&ad->ad_rl); 77515e32d5dSMike Smith 77615e32d5dSMike Smith child = device_add_child_ordered(bus, order, name, unit); 77715e32d5dSMike Smith if (child != NULL) 77815e32d5dSMike Smith device_set_ivars(child, ad); 77943ce1c77SNate Lawson else 78043ce1c77SNate Lawson free(ad, M_ACPIDEV); 78115e32d5dSMike Smith return (child); 78215e32d5dSMike Smith } 78315e32d5dSMike Smith 78415e32d5dSMike Smith static int 78515e32d5dSMike Smith acpi_print_child(device_t bus, device_t child) 78615e32d5dSMike Smith { 78715e32d5dSMike Smith struct acpi_device *adev = device_get_ivars(child); 78815e32d5dSMike Smith struct resource_list *rl = &adev->ad_rl; 78915e32d5dSMike Smith int retval = 0; 79015e32d5dSMike Smith 79115e32d5dSMike Smith retval += bus_print_child_header(bus, child); 7929ed79ecaSJohn Baldwin retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx"); 7939ed79ecaSJohn Baldwin retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#lx"); 7949ed79ecaSJohn Baldwin retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); 7959ed79ecaSJohn Baldwin retval += resource_list_print_type(rl, "drq", SYS_RES_DRQ, "%ld"); 796a91c5fa8SNate Lawson if (device_get_flags(child)) 797a91c5fa8SNate Lawson retval += printf(" flags %#x", device_get_flags(child)); 7982c8d3b23SNate Lawson retval += bus_print_child_footer(bus, child); 79915e32d5dSMike Smith 80015e32d5dSMike Smith return (retval); 80115e32d5dSMike Smith } 80215e32d5dSMike Smith 80310ce62b9SNate Lawson /* 80410ce62b9SNate Lawson * If this device is an ACPI child but no one claimed it, attempt 80510ce62b9SNate Lawson * to power it off. We'll power it back up when a driver is added. 80610ce62b9SNate Lawson * 80710ce62b9SNate Lawson * XXX Disabled for now since many necessary devices (like fdc and 80810ce62b9SNate Lawson * ATA) don't claim the devices we created for them but still expect 80910ce62b9SNate Lawson * them to be powered up. 81010ce62b9SNate Lawson */ 81110ce62b9SNate Lawson static void 81210ce62b9SNate Lawson acpi_probe_nomatch(device_t bus, device_t child) 81310ce62b9SNate Lawson { 81496cf0b6dSWarner Losh #ifdef ACPI_ENABLE_POWERDOWN_NODRIVER 815a7a3177fSJung-uk Kim acpi_set_powerstate(child, ACPI_STATE_D3); 81696cf0b6dSWarner Losh #endif 81710ce62b9SNate Lawson } 81810ce62b9SNate Lawson 81910ce62b9SNate Lawson /* 82010ce62b9SNate Lawson * If a new driver has a chance to probe a child, first power it up. 82110ce62b9SNate Lawson * 82210ce62b9SNate Lawson * XXX Disabled for now (see acpi_probe_nomatch for details). 82310ce62b9SNate Lawson */ 82410ce62b9SNate Lawson static void 82510ce62b9SNate Lawson acpi_driver_added(device_t dev, driver_t *driver) 82610ce62b9SNate Lawson { 82710ce62b9SNate Lawson device_t child, *devlist; 82810ce62b9SNate Lawson int i, numdevs; 82910ce62b9SNate Lawson 83010ce62b9SNate Lawson DEVICE_IDENTIFY(driver, dev); 831099ea4b5SWarner Losh if (device_get_children(dev, &devlist, &numdevs)) 832099ea4b5SWarner Losh return; 83310ce62b9SNate Lawson for (i = 0; i < numdevs; i++) { 83410ce62b9SNate Lawson child = devlist[i]; 83510ce62b9SNate Lawson if (device_get_state(child) == DS_NOTPRESENT) { 83696cf0b6dSWarner Losh #ifdef ACPI_ENABLE_POWERDOWN_NODRIVER 837a7a3177fSJung-uk Kim acpi_set_powerstate(child, ACPI_STATE_D0); 83810ce62b9SNate Lawson if (device_probe_and_attach(child) != 0) 839a7a3177fSJung-uk Kim acpi_set_powerstate(child, ACPI_STATE_D3); 84096cf0b6dSWarner Losh #else 84196cf0b6dSWarner Losh device_probe_and_attach(child); 84296cf0b6dSWarner Losh #endif 84310ce62b9SNate Lawson } 84410ce62b9SNate Lawson } 84510ce62b9SNate Lawson free(devlist, M_TEMP); 84610ce62b9SNate Lawson } 84710ce62b9SNate Lawson 84863600cc3SNate Lawson /* Location hint for devctl(8) */ 84963600cc3SNate Lawson static int 850247648afSTakanori Watanabe acpi_child_location_str_method(device_t cbdev, device_t child, char *buf, 851247648afSTakanori Watanabe size_t buflen) 852247648afSTakanori Watanabe { 853247648afSTakanori Watanabe struct acpi_device *dinfo = device_get_ivars(child); 854*9cf5a6aaSAdrian Chadd char buf2[32]; 855*9cf5a6aaSAdrian Chadd int pxm; 856247648afSTakanori Watanabe 857*9cf5a6aaSAdrian Chadd if (dinfo->ad_handle) { 858d40c0f53SNate Lawson snprintf(buf, buflen, "handle=%s", acpi_name(dinfo->ad_handle)); 859*9cf5a6aaSAdrian Chadd if (ACPI_SUCCESS(acpi_GetInteger(dinfo->ad_handle, "_PXM", &pxm))) { 860*9cf5a6aaSAdrian Chadd snprintf(buf2, 32, " _PXM=%d", pxm); 861*9cf5a6aaSAdrian Chadd strlcat(buf, buf2, buflen); 862*9cf5a6aaSAdrian Chadd } 863*9cf5a6aaSAdrian Chadd } else { 864d40c0f53SNate Lawson snprintf(buf, buflen, "unknown"); 865*9cf5a6aaSAdrian Chadd } 866247648afSTakanori Watanabe return (0); 867247648afSTakanori Watanabe } 868247648afSTakanori Watanabe 86963600cc3SNate Lawson /* PnP information for devctl(8) */ 87063600cc3SNate Lawson static int 871247648afSTakanori Watanabe acpi_child_pnpinfo_str_method(device_t cbdev, device_t child, char *buf, 872247648afSTakanori Watanabe size_t buflen) 873247648afSTakanori Watanabe { 87463600cc3SNate Lawson struct acpi_device *dinfo = device_get_ivars(child); 87592488a57SJung-uk Kim ACPI_DEVICE_INFO *adinfo; 876247648afSTakanori Watanabe 87792488a57SJung-uk Kim if (ACPI_FAILURE(AcpiGetObjectInfo(dinfo->ad_handle, &adinfo))) { 878d40c0f53SNate Lawson snprintf(buf, buflen, "unknown"); 87992488a57SJung-uk Kim return (0); 88092488a57SJung-uk Kim } 88192488a57SJung-uk Kim 882247648afSTakanori Watanabe snprintf(buf, buflen, "_HID=%s _UID=%lu", 883247648afSTakanori Watanabe (adinfo->Valid & ACPI_VALID_HID) ? 88492488a57SJung-uk Kim adinfo->HardwareId.String : "none", 88563600cc3SNate Lawson (adinfo->Valid & ACPI_VALID_UID) ? 88692488a57SJung-uk Kim strtoul(adinfo->UniqueId.String, NULL, 10) : 0UL); 887247648afSTakanori Watanabe AcpiOsFree(adinfo); 888247648afSTakanori Watanabe 889247648afSTakanori Watanabe return (0); 890247648afSTakanori Watanabe } 891247648afSTakanori Watanabe 892247648afSTakanori Watanabe /* 89315e32d5dSMike Smith * Handle per-device ivars 89415e32d5dSMike Smith */ 89515e32d5dSMike Smith static int 89615e32d5dSMike Smith acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 89715e32d5dSMike Smith { 89815e32d5dSMike Smith struct acpi_device *ad; 89915e32d5dSMike Smith 90015e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 9012d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 90215e32d5dSMike Smith return (ENOENT); 90315e32d5dSMike Smith } 90415e32d5dSMike Smith 905be2b1797SNate Lawson /* ACPI and ISA compatibility ivars */ 90615e32d5dSMike Smith switch(index) { 90715e32d5dSMike Smith case ACPI_IVAR_HANDLE: 90815e32d5dSMike Smith *(ACPI_HANDLE *)result = ad->ad_handle; 90915e32d5dSMike Smith break; 91015e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 91115e32d5dSMike Smith *(void **)result = ad->ad_private; 91215e32d5dSMike Smith break; 913d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 914d4b9ff91SNate Lawson *(int *)result = ad->ad_flags; 915d4b9ff91SNate Lawson break; 91632d18aa5SMike Smith case ISA_IVAR_VENDORID: 91732d18aa5SMike Smith case ISA_IVAR_SERIAL: 91832d18aa5SMike Smith case ISA_IVAR_COMPATID: 91932d18aa5SMike Smith *(int *)result = -1; 92032d18aa5SMike Smith break; 92132d18aa5SMike Smith case ISA_IVAR_LOGICALID: 92232d18aa5SMike Smith *(int *)result = acpi_isa_get_logicalid(child); 92332d18aa5SMike Smith break; 92415e32d5dSMike Smith default: 92515e32d5dSMike Smith return (ENOENT); 92615e32d5dSMike Smith } 927be2b1797SNate Lawson 92815e32d5dSMike Smith return (0); 92915e32d5dSMike Smith } 93015e32d5dSMike Smith 93115e32d5dSMike Smith static int 93215e32d5dSMike Smith acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value) 93315e32d5dSMike Smith { 93415e32d5dSMike Smith struct acpi_device *ad; 93515e32d5dSMike Smith 93615e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 9372d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 93815e32d5dSMike Smith return (ENOENT); 93915e32d5dSMike Smith } 94015e32d5dSMike Smith 94115e32d5dSMike Smith switch(index) { 94215e32d5dSMike Smith case ACPI_IVAR_HANDLE: 94315e32d5dSMike Smith ad->ad_handle = (ACPI_HANDLE)value; 94415e32d5dSMike Smith break; 94515e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 94615e32d5dSMike Smith ad->ad_private = (void *)value; 94715e32d5dSMike Smith break; 948d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 949d4b9ff91SNate Lawson ad->ad_flags = (int)value; 950d4b9ff91SNate Lawson break; 95115e32d5dSMike Smith default: 9522ab060eeSWarner Losh panic("bad ivar write request (%d)", index); 95315e32d5dSMike Smith return (ENOENT); 95415e32d5dSMike Smith } 955be2b1797SNate Lawson 95615e32d5dSMike Smith return (0); 95715e32d5dSMike Smith } 95815e32d5dSMike Smith 95915e32d5dSMike Smith /* 96015e32d5dSMike Smith * Handle child resource allocation/removal 96115e32d5dSMike Smith */ 96291233413SNate Lawson static struct resource_list * 96391233413SNate Lawson acpi_get_rlist(device_t dev, device_t child) 96415e32d5dSMike Smith { 96591233413SNate Lawson struct acpi_device *ad; 96615e32d5dSMike Smith 96791233413SNate Lawson ad = device_get_ivars(child); 96891233413SNate Lawson return (&ad->ad_rl); 96915e32d5dSMike Smith } 97015e32d5dSMike Smith 9710d484d24SJohn Baldwin static int 9720d484d24SJohn Baldwin acpi_match_resource_hint(device_t dev, int type, long value) 9730d484d24SJohn Baldwin { 9740d484d24SJohn Baldwin struct acpi_device *ad = device_get_ivars(dev); 9750d484d24SJohn Baldwin struct resource_list *rl = &ad->ad_rl; 9760d484d24SJohn Baldwin struct resource_list_entry *rle; 9770d484d24SJohn Baldwin 9780d484d24SJohn Baldwin STAILQ_FOREACH(rle, rl, link) { 9790d484d24SJohn Baldwin if (rle->type != type) 9800d484d24SJohn Baldwin continue; 9810d484d24SJohn Baldwin if (rle->start <= value && rle->end >= value) 9820d484d24SJohn Baldwin return (1); 9830d484d24SJohn Baldwin } 9840d484d24SJohn Baldwin return (0); 9850d484d24SJohn Baldwin } 9860d484d24SJohn Baldwin 9870d484d24SJohn Baldwin /* 9880d484d24SJohn Baldwin * Wire device unit numbers based on resource matches in hints. 9890d484d24SJohn Baldwin */ 9900d484d24SJohn Baldwin static void 9910d484d24SJohn Baldwin acpi_hint_device_unit(device_t acdev, device_t child, const char *name, 9920d484d24SJohn Baldwin int *unitp) 9930d484d24SJohn Baldwin { 9940d484d24SJohn Baldwin const char *s; 9950d484d24SJohn Baldwin long value; 9960d484d24SJohn Baldwin int line, matches, unit; 9970d484d24SJohn Baldwin 9980d484d24SJohn Baldwin /* 9990d484d24SJohn Baldwin * Iterate over all the hints for the devices with the specified 10000d484d24SJohn Baldwin * name to see if one's resources are a subset of this device. 10010d484d24SJohn Baldwin */ 10020d484d24SJohn Baldwin line = 0; 10030d484d24SJohn Baldwin for (;;) { 10040d484d24SJohn Baldwin if (resource_find_dev(&line, name, &unit, "at", NULL) != 0) 10050d484d24SJohn Baldwin break; 10060d484d24SJohn Baldwin 10070d484d24SJohn Baldwin /* Must have an "at" for acpi or isa. */ 10080d484d24SJohn Baldwin resource_string_value(name, unit, "at", &s); 10090d484d24SJohn Baldwin if (!(strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 || 10100d484d24SJohn Baldwin strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0)) 10110d484d24SJohn Baldwin continue; 10120d484d24SJohn Baldwin 10130d484d24SJohn Baldwin /* 10142fcd493cSJohn Baldwin * Check for matching resources. We must have at least one match. 10152fcd493cSJohn Baldwin * Since I/O and memory resources cannot be shared, if we get a 10162fcd493cSJohn Baldwin * match on either of those, ignore any mismatches in IRQs or DRQs. 10170d484d24SJohn Baldwin * 10180d484d24SJohn Baldwin * XXX: We may want to revisit this to be more lenient and wire 10190d484d24SJohn Baldwin * as long as it gets one match. 10200d484d24SJohn Baldwin */ 10210d484d24SJohn Baldwin matches = 0; 10220d484d24SJohn Baldwin if (resource_long_value(name, unit, "port", &value) == 0) { 10232fcd493cSJohn Baldwin /* 10242fcd493cSJohn Baldwin * Floppy drive controllers are notorious for having a 10252fcd493cSJohn Baldwin * wide variety of resources not all of which include the 10262fcd493cSJohn Baldwin * first port that is specified by the hint (typically 10272fcd493cSJohn Baldwin * 0x3f0) (see the comment above fdc_isa_alloc_resources() 10282fcd493cSJohn Baldwin * in fdc_isa.c). However, they do all seem to include 10292fcd493cSJohn Baldwin * port + 2 (e.g. 0x3f2) so for a floppy device, look for 10302fcd493cSJohn Baldwin * 'value + 2' in the port resources instead of the hint 10312fcd493cSJohn Baldwin * value. 10322fcd493cSJohn Baldwin */ 10332fcd493cSJohn Baldwin if (strcmp(name, "fdc") == 0) 10342fcd493cSJohn Baldwin value += 2; 10350d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IOPORT, value)) 10360d484d24SJohn Baldwin matches++; 10370d484d24SJohn Baldwin else 10380d484d24SJohn Baldwin continue; 10390d484d24SJohn Baldwin } 10400d484d24SJohn Baldwin if (resource_long_value(name, unit, "maddr", &value) == 0) { 10410d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_MEMORY, value)) 10420d484d24SJohn Baldwin matches++; 10430d484d24SJohn Baldwin else 10440d484d24SJohn Baldwin continue; 10450d484d24SJohn Baldwin } 10462fcd493cSJohn Baldwin if (matches > 0) 10472fcd493cSJohn Baldwin goto matched; 10480d484d24SJohn Baldwin if (resource_long_value(name, unit, "irq", &value) == 0) { 10490d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IRQ, value)) 10500d484d24SJohn Baldwin matches++; 10510d484d24SJohn Baldwin else 10520d484d24SJohn Baldwin continue; 10530d484d24SJohn Baldwin } 10540d484d24SJohn Baldwin if (resource_long_value(name, unit, "drq", &value) == 0) { 10550d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_DRQ, value)) 10560d484d24SJohn Baldwin matches++; 10570d484d24SJohn Baldwin else 10580d484d24SJohn Baldwin continue; 10590d484d24SJohn Baldwin } 10600d484d24SJohn Baldwin 10612fcd493cSJohn Baldwin matched: 10620d484d24SJohn Baldwin if (matches > 0) { 10630d484d24SJohn Baldwin /* We have a winner! */ 10640d484d24SJohn Baldwin *unitp = unit; 10650d484d24SJohn Baldwin break; 10660d484d24SJohn Baldwin } 10670d484d24SJohn Baldwin } 10680d484d24SJohn Baldwin } 10690d484d24SJohn Baldwin 1070adad4744SNate Lawson /* 1071adad4744SNate Lawson * Pre-allocate/manage all memory and IO resources. Since rman can't handle 1072adad4744SNate Lawson * duplicates, we merge any in the sysresource attach routine. 1073adad4744SNate Lawson */ 1074adad4744SNate Lawson static int 1075adad4744SNate Lawson acpi_sysres_alloc(device_t dev) 1076adad4744SNate Lawson { 1077adad4744SNate Lawson struct resource *res; 1078adad4744SNate Lawson struct resource_list *rl; 1079adad4744SNate Lawson struct resource_list_entry *rle; 1080adad4744SNate Lawson struct rman *rm; 1081da72d149SNate Lawson char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 1082da72d149SNate Lawson device_t *children; 1083da72d149SNate Lawson int child_count, i; 1084da72d149SNate Lawson 1085da72d149SNate Lawson /* 1086da72d149SNate Lawson * Probe/attach any sysresource devices. This would be unnecessary if we 1087da72d149SNate Lawson * had multi-pass probe/attach. 1088da72d149SNate Lawson */ 1089da72d149SNate Lawson if (device_get_children(dev, &children, &child_count) != 0) 1090da72d149SNate Lawson return (ENXIO); 1091da72d149SNate Lawson for (i = 0; i < child_count; i++) { 1092da72d149SNate Lawson if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) 1093da72d149SNate Lawson device_probe_and_attach(children[i]); 1094da72d149SNate Lawson } 1095da72d149SNate Lawson free(children, M_TEMP); 1096adad4744SNate Lawson 1097adad4744SNate Lawson rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 1098be1bf4d2SPoul-Henning Kamp STAILQ_FOREACH(rle, rl, link) { 1099adad4744SNate Lawson if (rle->res != NULL) { 1100adad4744SNate Lawson device_printf(dev, "duplicate resource for %lx\n", rle->start); 1101adad4744SNate Lawson continue; 1102adad4744SNate Lawson } 1103adad4744SNate Lawson 1104adad4744SNate Lawson /* Only memory and IO resources are valid here. */ 1105adad4744SNate Lawson switch (rle->type) { 1106adad4744SNate Lawson case SYS_RES_IOPORT: 1107adad4744SNate Lawson rm = &acpi_rman_io; 1108adad4744SNate Lawson break; 1109adad4744SNate Lawson case SYS_RES_MEMORY: 1110adad4744SNate Lawson rm = &acpi_rman_mem; 1111adad4744SNate Lawson break; 1112adad4744SNate Lawson default: 1113adad4744SNate Lawson continue; 1114adad4744SNate Lawson } 1115adad4744SNate Lawson 1116adad4744SNate Lawson /* Pre-allocate resource and add to our rman pool. */ 1117adad4744SNate Lawson res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, rle->type, 1118adad4744SNate Lawson &rle->rid, rle->start, rle->start + rle->count - 1, rle->count, 0); 1119adad4744SNate Lawson if (res != NULL) { 1120adad4744SNate Lawson rman_manage_region(rm, rman_get_start(res), rman_get_end(res)); 1121adad4744SNate Lawson rle->res = res; 1122adad4744SNate Lawson } else 1123adad4744SNate Lawson device_printf(dev, "reservation of %lx, %lx (%d) failed\n", 1124adad4744SNate Lawson rle->start, rle->count, rle->type); 1125adad4744SNate Lawson } 1126adad4744SNate Lawson return (0); 1127adad4744SNate Lawson } 1128adad4744SNate Lawson 1129ea233199SJohn Baldwin static char *pcilink_ids[] = { "PNP0C0F", NULL }; 1130ea233199SJohn Baldwin static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 1131ea233199SJohn Baldwin 1132ea233199SJohn Baldwin /* 1133ea233199SJohn Baldwin * Reserve declared resources for devices found during attach once system 1134ea233199SJohn Baldwin * resources have been allocated. 1135ea233199SJohn Baldwin */ 1136ea233199SJohn Baldwin static void 1137ea233199SJohn Baldwin acpi_reserve_resources(device_t dev) 1138ea233199SJohn Baldwin { 1139ea233199SJohn Baldwin struct resource_list_entry *rle; 1140ea233199SJohn Baldwin struct resource_list *rl; 1141ea233199SJohn Baldwin struct acpi_device *ad; 1142ea233199SJohn Baldwin struct acpi_softc *sc; 1143ea233199SJohn Baldwin device_t *children; 1144ea233199SJohn Baldwin int child_count, i; 1145ea233199SJohn Baldwin 1146ea233199SJohn Baldwin sc = device_get_softc(dev); 1147ea233199SJohn Baldwin if (device_get_children(dev, &children, &child_count) != 0) 1148ea233199SJohn Baldwin return; 1149ea233199SJohn Baldwin for (i = 0; i < child_count; i++) { 1150ea233199SJohn Baldwin ad = device_get_ivars(children[i]); 1151ea233199SJohn Baldwin rl = &ad->ad_rl; 1152ea233199SJohn Baldwin 1153ea233199SJohn Baldwin /* Don't reserve system resources. */ 1154ea233199SJohn Baldwin if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) 1155ea233199SJohn Baldwin continue; 1156ea233199SJohn Baldwin 1157ea233199SJohn Baldwin STAILQ_FOREACH(rle, rl, link) { 1158ea233199SJohn Baldwin /* 1159ea233199SJohn Baldwin * Don't reserve IRQ resources. There are many sticky things 1160ea233199SJohn Baldwin * to get right otherwise (e.g. IRQs for psm, atkbd, and HPET 1161ea233199SJohn Baldwin * when using legacy routing). 1162ea233199SJohn Baldwin */ 1163ea233199SJohn Baldwin if (rle->type == SYS_RES_IRQ) 1164ea233199SJohn Baldwin continue; 1165ea233199SJohn Baldwin 1166ea233199SJohn Baldwin /* 11670d81cf12SJohn Baldwin * Don't reserve the resource if it is already allocated. 11680d81cf12SJohn Baldwin * The acpi_ec(4) driver can allocate its resources early 11690d81cf12SJohn Baldwin * if ECDT is present. 11700d81cf12SJohn Baldwin */ 11710d81cf12SJohn Baldwin if (rle->res != NULL) 11720d81cf12SJohn Baldwin continue; 11730d81cf12SJohn Baldwin 11740d81cf12SJohn Baldwin /* 1175ea233199SJohn Baldwin * Try to reserve the resource from our parent. If this 1176ea233199SJohn Baldwin * fails because the resource is a system resource, just 1177ea233199SJohn Baldwin * let it be. The resource range is already reserved so 1178ea233199SJohn Baldwin * that other devices will not use it. If the driver 1179ea233199SJohn Baldwin * needs to allocate the resource, then 1180ea233199SJohn Baldwin * acpi_alloc_resource() will sub-alloc from the system 1181ea233199SJohn Baldwin * resource. 1182ea233199SJohn Baldwin */ 1183ea233199SJohn Baldwin resource_list_reserve(rl, dev, children[i], rle->type, &rle->rid, 1184ea233199SJohn Baldwin rle->start, rle->end, rle->count, 0); 1185ea233199SJohn Baldwin } 1186ea233199SJohn Baldwin } 1187ea233199SJohn Baldwin free(children, M_TEMP); 1188ea233199SJohn Baldwin sc->acpi_resources_reserved = 1; 1189ea233199SJohn Baldwin } 1190ea233199SJohn Baldwin 1191ea233199SJohn Baldwin static int 1192ea233199SJohn Baldwin acpi_set_resource(device_t dev, device_t child, int type, int rid, 1193ea233199SJohn Baldwin u_long start, u_long count) 1194ea233199SJohn Baldwin { 1195ea233199SJohn Baldwin struct acpi_softc *sc = device_get_softc(dev); 1196ea233199SJohn Baldwin struct acpi_device *ad = device_get_ivars(child); 1197ea233199SJohn Baldwin struct resource_list *rl = &ad->ad_rl; 11987e3343bfSJohn Baldwin ACPI_DEVICE_INFO *devinfo; 1199ea233199SJohn Baldwin u_long end; 1200ea233199SJohn Baldwin 1201ea233199SJohn Baldwin /* Ignore IRQ resources for PCI link devices. */ 1202ea233199SJohn Baldwin if (type == SYS_RES_IRQ && ACPI_ID_PROBE(dev, child, pcilink_ids) != NULL) 1203ea233199SJohn Baldwin return (0); 1204ea233199SJohn Baldwin 12057e3343bfSJohn Baldwin /* 1206d2dc06caSJohn Baldwin * Ignore most resources for PCI root bridges. Some BIOSes 12077e3343bfSJohn Baldwin * incorrectly enumerate the memory ranges they decode as plain 1208d2dc06caSJohn Baldwin * memory resources instead of as ResourceProducer ranges. Other 1209d2dc06caSJohn Baldwin * BIOSes incorrectly list system resource entries for I/O ranges 1210d2dc06caSJohn Baldwin * under the PCI bridge. Do allow the one known-correct case on 1211d2dc06caSJohn Baldwin * x86 of a PCI bridge claiming the I/O ports used for PCI config 1212d2dc06caSJohn Baldwin * access. 12137e3343bfSJohn Baldwin */ 1214d2dc06caSJohn Baldwin if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { 12157e3343bfSJohn Baldwin if (ACPI_SUCCESS(AcpiGetObjectInfo(ad->ad_handle, &devinfo))) { 12167e3343bfSJohn Baldwin if ((devinfo->Flags & ACPI_PCI_ROOT_BRIDGE) != 0) { 1217d2dc06caSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 1218d2dc06caSJohn Baldwin if (!(type == SYS_RES_IOPORT && start == CONF1_ADDR_PORT)) 1219d2dc06caSJohn Baldwin #endif 1220d2dc06caSJohn Baldwin { 12217e3343bfSJohn Baldwin AcpiOsFree(devinfo); 12227e3343bfSJohn Baldwin return (0); 12237e3343bfSJohn Baldwin } 1224d2dc06caSJohn Baldwin } 12257e3343bfSJohn Baldwin AcpiOsFree(devinfo); 12267e3343bfSJohn Baldwin } 12277e3343bfSJohn Baldwin } 12287e3343bfSJohn Baldwin 1229ea233199SJohn Baldwin /* If the resource is already allocated, fail. */ 1230ea233199SJohn Baldwin if (resource_list_busy(rl, type, rid)) 1231ea233199SJohn Baldwin return (EBUSY); 1232ea233199SJohn Baldwin 1233ea233199SJohn Baldwin /* If the resource is already reserved, release it. */ 1234ea233199SJohn Baldwin if (resource_list_reserved(rl, type, rid)) 1235ea233199SJohn Baldwin resource_list_unreserve(rl, dev, child, type, rid); 1236ea233199SJohn Baldwin 1237ea233199SJohn Baldwin /* Add the resource. */ 1238ea233199SJohn Baldwin end = (start + count - 1); 1239ea233199SJohn Baldwin resource_list_add(rl, type, rid, start, end, count); 1240ea233199SJohn Baldwin 1241ea233199SJohn Baldwin /* Don't reserve resources until the system resources are allocated. */ 1242ea233199SJohn Baldwin if (!sc->acpi_resources_reserved) 1243ea233199SJohn Baldwin return (0); 1244ea233199SJohn Baldwin 1245ea233199SJohn Baldwin /* Don't reserve system resources. */ 1246ea233199SJohn Baldwin if (ACPI_ID_PROBE(dev, child, sysres_ids) != NULL) 1247ea233199SJohn Baldwin return (0); 1248ea233199SJohn Baldwin 1249ea233199SJohn Baldwin /* 1250ea233199SJohn Baldwin * Don't reserve IRQ resources. There are many sticky things to 1251ea233199SJohn Baldwin * get right otherwise (e.g. IRQs for psm, atkbd, and HPET when 1252ea233199SJohn Baldwin * using legacy routing). 1253ea233199SJohn Baldwin */ 1254ea233199SJohn Baldwin if (type == SYS_RES_IRQ) 1255ea233199SJohn Baldwin return (0); 1256ea233199SJohn Baldwin 1257ea233199SJohn Baldwin /* 1258ea233199SJohn Baldwin * Reserve the resource. 1259ea233199SJohn Baldwin * 1260ea233199SJohn Baldwin * XXX: Ignores failure for now. Failure here is probably a 1261ea233199SJohn Baldwin * BIOS/firmware bug? 1262ea233199SJohn Baldwin */ 1263ea233199SJohn Baldwin resource_list_reserve(rl, dev, child, type, &rid, start, end, count, 0); 1264ea233199SJohn Baldwin return (0); 1265ea233199SJohn Baldwin } 1266ea233199SJohn Baldwin 126715e32d5dSMike Smith static struct resource * 126815e32d5dSMike Smith acpi_alloc_resource(device_t bus, device_t child, int type, int *rid, 126915e32d5dSMike Smith u_long start, u_long end, u_long count, u_int flags) 127015e32d5dSMike Smith { 127195957f62SJohn Baldwin ACPI_RESOURCE ares; 1272ea233199SJohn Baldwin struct acpi_device *ad; 127391233413SNate Lawson struct resource_list_entry *rle; 1274ea233199SJohn Baldwin struct resource_list *rl; 127591233413SNate Lawson struct resource *res; 1276ea233199SJohn Baldwin int isdefault = (start == 0UL && end == ~0UL); 127715e2f34fSNate Lawson 127891233413SNate Lawson /* 1279ea233199SJohn Baldwin * First attempt at allocating the resource. For direct children, 1280ea233199SJohn Baldwin * use resource_list_alloc() to handle reserved resources. For 1281f6133e71SJohn Baldwin * other devices, pass the request up to our parent. 128291233413SNate Lawson */ 1283ea233199SJohn Baldwin if (bus == device_get_parent(child)) { 1284ea233199SJohn Baldwin ad = device_get_ivars(child); 1285ea233199SJohn Baldwin rl = &ad->ad_rl; 128691233413SNate Lawson 1287397c30a8SJohn Baldwin /* 1288ea233199SJohn Baldwin * Simulate the behavior of the ISA bus for direct children 1289ea233199SJohn Baldwin * devices. That is, if a non-default range is specified for 1290ea233199SJohn Baldwin * a resource that doesn't exist, use bus_set_resource() to 1291ea233199SJohn Baldwin * add the resource before allocating it. Note that these 1292ea233199SJohn Baldwin * resources will not be reserved. 1293397c30a8SJohn Baldwin */ 1294ea233199SJohn Baldwin if (!isdefault && resource_list_find(rl, type, *rid) == NULL) 1295ea233199SJohn Baldwin resource_list_add(rl, type, *rid, start, end, count); 1296ea233199SJohn Baldwin res = resource_list_alloc(rl, bus, child, type, rid, start, end, count, 1297ea233199SJohn Baldwin flags); 1298ea233199SJohn Baldwin if (res != NULL && type == SYS_RES_IRQ) { 129995957f62SJohn Baldwin /* 130095957f62SJohn Baldwin * Since bus_config_intr() takes immediate effect, we cannot 130195957f62SJohn Baldwin * configure the interrupt associated with a device when we 130295957f62SJohn Baldwin * parse the resources but have to defer it until a driver 130395957f62SJohn Baldwin * actually allocates the interrupt via bus_alloc_resource(). 130495957f62SJohn Baldwin * 130595957f62SJohn Baldwin * XXX: Should we handle the lookup failing? 130695957f62SJohn Baldwin */ 130795957f62SJohn Baldwin if (ACPI_SUCCESS(acpi_lookup_irq_resource(child, *rid, res, &ares))) 130895957f62SJohn Baldwin acpi_config_intr(child, &ares); 130995957f62SJohn Baldwin } 131015e2f34fSNate Lawson 1311ea233199SJohn Baldwin /* 1312ea233199SJohn Baldwin * If this is an allocation of the "default" range for a given 1313ea233199SJohn Baldwin * RID, fetch the exact bounds for this resource from the 1314ea233199SJohn Baldwin * resource list entry to try to allocate the range from the 1315ea233199SJohn Baldwin * system resource regions. 1316ea233199SJohn Baldwin */ 1317ea233199SJohn Baldwin if (res == NULL && isdefault) { 1318ea233199SJohn Baldwin rle = resource_list_find(rl, type, *rid); 1319ea233199SJohn Baldwin if (rle != NULL) { 1320ea233199SJohn Baldwin start = rle->start; 1321ea233199SJohn Baldwin end = rle->end; 1322ea233199SJohn Baldwin count = rle->count; 1323ea233199SJohn Baldwin } 1324ea233199SJohn Baldwin } 1325ea233199SJohn Baldwin } else 1326ea233199SJohn Baldwin res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid, 1327ea233199SJohn Baldwin start, end, count, flags); 1328ea233199SJohn Baldwin 1329ea233199SJohn Baldwin /* 1330ea233199SJohn Baldwin * If the first attempt failed and this is an allocation of a 1331ea233199SJohn Baldwin * specific range, try to satisfy the request via a suballocation 13325d0d779bSJohn Baldwin * from our system resource regions. 1333ea233199SJohn Baldwin */ 13345d0d779bSJohn Baldwin if (res == NULL && start + count - 1 == end) 13355d0d779bSJohn Baldwin res = acpi_alloc_sysres(child, type, rid, start, end, count, flags); 13365d0d779bSJohn Baldwin return (res); 13375d0d779bSJohn Baldwin } 13385d0d779bSJohn Baldwin 13395d0d779bSJohn Baldwin /* 13405d0d779bSJohn Baldwin * Attempt to allocate a specific resource range from the system 13415d0d779bSJohn Baldwin * resource ranges. Note that we only handle memory and I/O port 13425d0d779bSJohn Baldwin * system resources. 13435d0d779bSJohn Baldwin */ 13445d0d779bSJohn Baldwin struct resource * 13455d0d779bSJohn Baldwin acpi_alloc_sysres(device_t child, int type, int *rid, u_long start, u_long end, 13465d0d779bSJohn Baldwin u_long count, u_int flags) 13475d0d779bSJohn Baldwin { 13485d0d779bSJohn Baldwin struct rman *rm; 13495d0d779bSJohn Baldwin struct resource *res; 13505d0d779bSJohn Baldwin 1351ea233199SJohn Baldwin switch (type) { 1352ea233199SJohn Baldwin case SYS_RES_IOPORT: 1353ea233199SJohn Baldwin rm = &acpi_rman_io; 1354ea233199SJohn Baldwin break; 1355ea233199SJohn Baldwin case SYS_RES_MEMORY: 1356ea233199SJohn Baldwin rm = &acpi_rman_mem; 1357ea233199SJohn Baldwin break; 1358ea233199SJohn Baldwin default: 1359ea233199SJohn Baldwin return (NULL); 1360ea233199SJohn Baldwin } 1361ea233199SJohn Baldwin 13625d0d779bSJohn Baldwin KASSERT(start + count - 1 == end, ("wildcard resource range")); 1363ea233199SJohn Baldwin res = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 1364ea233199SJohn Baldwin child); 1365ea233199SJohn Baldwin if (res == NULL) 1366ea233199SJohn Baldwin return (NULL); 1367ea233199SJohn Baldwin 1368ea233199SJohn Baldwin rman_set_rid(res, *rid); 1369ea233199SJohn Baldwin 1370ea233199SJohn Baldwin /* If requested, activate the resource using the parent's method. */ 1371ea233199SJohn Baldwin if (flags & RF_ACTIVE) 1372ea233199SJohn Baldwin if (bus_activate_resource(child, type, *rid, res) != 0) { 1373ea233199SJohn Baldwin rman_release_resource(res); 1374ea233199SJohn Baldwin return (NULL); 1375ea233199SJohn Baldwin } 1376ea233199SJohn Baldwin 137791233413SNate Lawson return (res); 137815e32d5dSMike Smith } 137915e32d5dSMike Smith 138015e32d5dSMike Smith static int 1381049dc0d1SJohn Baldwin acpi_is_resource_managed(int type, struct resource *r) 138215e32d5dSMike Smith { 138315e32d5dSMike Smith 1384397c30a8SJohn Baldwin /* We only handle memory and IO resources through rman. */ 1385397c30a8SJohn Baldwin switch (type) { 1386397c30a8SJohn Baldwin case SYS_RES_IOPORT: 1387049dc0d1SJohn Baldwin return (rman_is_region_manager(r, &acpi_rman_io)); 1388397c30a8SJohn Baldwin case SYS_RES_MEMORY: 1389049dc0d1SJohn Baldwin return (rman_is_region_manager(r, &acpi_rman_mem)); 1390397c30a8SJohn Baldwin } 1391049dc0d1SJohn Baldwin return (0); 1392049dc0d1SJohn Baldwin } 1393049dc0d1SJohn Baldwin 1394049dc0d1SJohn Baldwin static int 1395049dc0d1SJohn Baldwin acpi_adjust_resource(device_t bus, device_t child, int type, struct resource *r, 1396049dc0d1SJohn Baldwin u_long start, u_long end) 1397049dc0d1SJohn Baldwin { 1398049dc0d1SJohn Baldwin 1399049dc0d1SJohn Baldwin if (acpi_is_resource_managed(type, r)) 1400049dc0d1SJohn Baldwin return (rman_adjust_resource(r, start, end)); 1401049dc0d1SJohn Baldwin return (bus_generic_adjust_resource(bus, child, type, r, start, end)); 1402049dc0d1SJohn Baldwin } 1403049dc0d1SJohn Baldwin 1404049dc0d1SJohn Baldwin static int 1405049dc0d1SJohn Baldwin acpi_release_resource(device_t bus, device_t child, int type, int rid, 1406049dc0d1SJohn Baldwin struct resource *r) 1407049dc0d1SJohn Baldwin { 1408049dc0d1SJohn Baldwin int ret; 1409397c30a8SJohn Baldwin 141091233413SNate Lawson /* 1411397c30a8SJohn Baldwin * If this resource belongs to one of our internal managers, 1412ea233199SJohn Baldwin * deactivate it and release it to the local pool. 141391233413SNate Lawson */ 1414049dc0d1SJohn Baldwin if (acpi_is_resource_managed(type, r)) { 141591233413SNate Lawson if (rman_get_flags(r) & RF_ACTIVE) { 141691233413SNate Lawson ret = bus_deactivate_resource(child, type, rid, r); 141791233413SNate Lawson if (ret != 0) 141891233413SNate Lawson return (ret); 141915e32d5dSMike Smith } 1420ea233199SJohn Baldwin return (rman_release_resource(r)); 1421ea233199SJohn Baldwin } 1422ea233199SJohn Baldwin 1423ea233199SJohn Baldwin return (bus_generic_rl_release_resource(bus, child, type, rid, r)); 1424ea233199SJohn Baldwin } 142515e32d5dSMike Smith 14268b28b622SNate Lawson static void 14278b28b622SNate Lawson acpi_delete_resource(device_t bus, device_t child, int type, int rid) 14288b28b622SNate Lawson { 14298b28b622SNate Lawson struct resource_list *rl; 14308b28b622SNate Lawson 14318b28b622SNate Lawson rl = acpi_get_rlist(bus, child); 1432ea233199SJohn Baldwin if (resource_list_busy(rl, type, rid)) { 1433ea233199SJohn Baldwin device_printf(bus, "delete_resource: Resource still owned by child" 1434ea233199SJohn Baldwin " (type=%d, rid=%d)\n", type, rid); 1435ea233199SJohn Baldwin return; 1436ea233199SJohn Baldwin } 1437ea233199SJohn Baldwin resource_list_unreserve(rl, bus, child, type, rid); 14388b28b622SNate Lawson resource_list_delete(rl, type, rid); 14398b28b622SNate Lawson } 14408b28b622SNate Lawson 1441dc750869SNate Lawson /* Allocate an IO port or memory resource, given its GAS. */ 1442e1c4bf3fSNate Lawson int 1443e1c4bf3fSNate Lawson acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas, 1444907b6777SNate Lawson struct resource **res, u_int flags) 1445dc750869SNate Lawson { 1446e1c4bf3fSNate Lawson int error, res_type; 1447dc750869SNate Lawson 1448e1c4bf3fSNate Lawson error = ENOMEM; 14498f118e25SNate Lawson if (type == NULL || rid == NULL || gas == NULL || res == NULL) 1450e1c4bf3fSNate Lawson return (EINVAL); 1451dc750869SNate Lawson 14528f118e25SNate Lawson /* We only support memory and IO spaces. */ 14532be4e471SJung-uk Kim switch (gas->SpaceId) { 1454dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_MEMORY: 1455e1c4bf3fSNate Lawson res_type = SYS_RES_MEMORY; 1456dc750869SNate Lawson break; 1457dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_IO: 1458e1c4bf3fSNate Lawson res_type = SYS_RES_IOPORT; 1459dc750869SNate Lawson break; 1460dc750869SNate Lawson default: 1461e1c4bf3fSNate Lawson return (EOPNOTSUPP); 1462dc750869SNate Lawson } 1463dc750869SNate Lawson 14642fe912dfSNate Lawson /* 1465f45fc848SNate Lawson * If the register width is less than 8, assume the BIOS author means 1466f45fc848SNate Lawson * it is a bit field and just allocate a byte. 14672fe912dfSNate Lawson */ 14682be4e471SJung-uk Kim if (gas->BitWidth && gas->BitWidth < 8) 14692be4e471SJung-uk Kim gas->BitWidth = 8; 14702fe912dfSNate Lawson 14718f118e25SNate Lawson /* Validate the address after we're sure we support the space. */ 14722be4e471SJung-uk Kim if (gas->Address == 0 || gas->BitWidth == 0) 14738f118e25SNate Lawson return (EINVAL); 14748f118e25SNate Lawson 1475e1c4bf3fSNate Lawson bus_set_resource(dev, res_type, *rid, gas->Address, 14762be4e471SJung-uk Kim gas->BitWidth / 8); 1477907b6777SNate Lawson *res = bus_alloc_resource_any(dev, res_type, rid, RF_ACTIVE | flags); 1478e1c4bf3fSNate Lawson if (*res != NULL) { 1479e1c4bf3fSNate Lawson *type = res_type; 1480e1c4bf3fSNate Lawson error = 0; 1481ca2c69c8SNate Lawson } else 1482ca2c69c8SNate Lawson bus_delete_resource(dev, res_type, *rid); 1483ca2c69c8SNate Lawson 1484e1c4bf3fSNate Lawson return (error); 1485dc750869SNate Lawson } 1486dc750869SNate Lawson 1487c796e27bSNate Lawson /* Probe _HID and _CID for compatible ISA PNP ids. */ 14881e4925e8SNate Lawson static uint32_t 148932d18aa5SMike Smith acpi_isa_get_logicalid(device_t dev) 1490bc0f2195SMike Smith { 14911e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 1492bc0f2195SMike Smith ACPI_HANDLE h; 149392488a57SJung-uk Kim uint32_t pnpid; 149432d18aa5SMike Smith 1495b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 149632d18aa5SMike Smith 14976fca9360SNate Lawson /* Fetch and validate the HID. */ 149892488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 149992488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 150092488a57SJung-uk Kim return_VALUE (0); 150132d18aa5SMike Smith 150292488a57SJung-uk Kim pnpid = (devinfo->Valid & ACPI_VALID_HID) != 0 && 150392488a57SJung-uk Kim devinfo->HardwareId.Length >= ACPI_EISAID_STRING_SIZE ? 150492488a57SJung-uk Kim PNP_EISAID(devinfo->HardwareId.String) : 0; 150592488a57SJung-uk Kim AcpiOsFree(devinfo); 1506be2b1797SNate Lawson 150732d18aa5SMike Smith return_VALUE (pnpid); 150832d18aa5SMike Smith } 150932d18aa5SMike Smith 15101e4925e8SNate Lawson static int 15111e4925e8SNate Lawson acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count) 1512b2566207STakanori Watanabe { 15131e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 15148ef1a331SJung-uk Kim ACPI_PNP_DEVICE_ID *ids; 1515b2566207STakanori Watanabe ACPI_HANDLE h; 15161e4925e8SNate Lawson uint32_t *pnpid; 151792488a57SJung-uk Kim int i, valid; 1518b2566207STakanori Watanabe 1519b2566207STakanori Watanabe ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1520b2566207STakanori Watanabe 15211e4925e8SNate Lawson pnpid = cids; 1522bd189fe7SNate Lawson 15231e4925e8SNate Lawson /* Fetch and validate the CID */ 152492488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 152592488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 152692488a57SJung-uk Kim return_VALUE (0); 1527b2566207STakanori Watanabe 152892488a57SJung-uk Kim if ((devinfo->Valid & ACPI_VALID_CID) == 0) { 152992488a57SJung-uk Kim AcpiOsFree(devinfo); 153092488a57SJung-uk Kim return_VALUE (0); 1531b2566207STakanori Watanabe } 1532b2566207STakanori Watanabe 153392488a57SJung-uk Kim if (devinfo->CompatibleIdList.Count < count) 153492488a57SJung-uk Kim count = devinfo->CompatibleIdList.Count; 153592488a57SJung-uk Kim ids = devinfo->CompatibleIdList.Ids; 153692488a57SJung-uk Kim for (i = 0, valid = 0; i < count; i++) 153792488a57SJung-uk Kim if (ids[i].Length >= ACPI_EISAID_STRING_SIZE && 153892488a57SJung-uk Kim strncmp(ids[i].String, "PNP", 3) == 0) { 153992488a57SJung-uk Kim *pnpid++ = PNP_EISAID(ids[i].String); 154092488a57SJung-uk Kim valid++; 154192488a57SJung-uk Kim } 154292488a57SJung-uk Kim AcpiOsFree(devinfo); 154392488a57SJung-uk Kim 15441e4925e8SNate Lawson return_VALUE (valid); 15451e4925e8SNate Lawson } 1546b2566207STakanori Watanabe 1547ce619b2eSNate Lawson static char * 1548ce619b2eSNate Lawson acpi_device_id_probe(device_t bus, device_t dev, char **ids) 1549ce619b2eSNate Lawson { 1550ce619b2eSNate Lawson ACPI_HANDLE h; 155192488a57SJung-uk Kim ACPI_OBJECT_TYPE t; 1552ce619b2eSNate Lawson int i; 1553ce619b2eSNate Lawson 1554ce619b2eSNate Lawson h = acpi_get_handle(dev); 155592488a57SJung-uk Kim if (ids == NULL || h == NULL) 155692488a57SJung-uk Kim return (NULL); 155792488a57SJung-uk Kim t = acpi_get_type(dev); 155892488a57SJung-uk Kim if (t != ACPI_TYPE_DEVICE && t != ACPI_TYPE_PROCESSOR) 1559ce619b2eSNate Lawson return (NULL); 1560ce619b2eSNate Lawson 1561ce619b2eSNate Lawson /* Try to match one of the array of IDs with a HID or CID. */ 1562ce619b2eSNate Lawson for (i = 0; ids[i] != NULL; i++) { 1563ce619b2eSNate Lawson if (acpi_MatchHid(h, ids[i])) 1564ce619b2eSNate Lawson return (ids[i]); 1565ce619b2eSNate Lawson } 1566ce619b2eSNate Lawson return (NULL); 1567ce619b2eSNate Lawson } 1568ce619b2eSNate Lawson 1569ce619b2eSNate Lawson static ACPI_STATUS 1570ce619b2eSNate Lawson acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname, 1571ce619b2eSNate Lawson ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret) 1572ce619b2eSNate Lawson { 1573ce619b2eSNate Lawson ACPI_HANDLE h; 1574ce619b2eSNate Lawson 1575df8d2a32SNate Lawson if (dev == NULL) 1576df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1577df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1578ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1579ce619b2eSNate Lawson return (AcpiEvaluateObject(h, pathname, parameters, ret)); 1580ce619b2eSNate Lawson } 1581ce619b2eSNate Lawson 158262508c53SJohn Baldwin int 158310ce62b9SNate Lawson acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate) 158410ce62b9SNate Lawson { 158510ce62b9SNate Lawson struct acpi_softc *sc; 158610ce62b9SNate Lawson ACPI_HANDLE handle; 158710ce62b9SNate Lawson ACPI_STATUS status; 158810ce62b9SNate Lawson char sxd[8]; 158910ce62b9SNate Lawson 159010ce62b9SNate Lawson handle = acpi_get_handle(dev); 159110ce62b9SNate Lawson 159210ce62b9SNate Lawson /* 159310ce62b9SNate Lawson * XXX If we find these devices, don't try to power them down. 159410ce62b9SNate Lawson * The serial and IRDA ports on my T23 hang the system when 159510ce62b9SNate Lawson * set to D3 and it appears that such legacy devices may 159610ce62b9SNate Lawson * need special handling in their drivers. 159710ce62b9SNate Lawson */ 1598a7a3177fSJung-uk Kim if (dstate == NULL || handle == NULL || 159910ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0500") || 160010ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0501") || 160110ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0502") || 160210ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0510") || 160310ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0511")) 160410ce62b9SNate Lawson return (ENXIO); 160510ce62b9SNate Lawson 160610ce62b9SNate Lawson /* 1607a7a3177fSJung-uk Kim * Override next state with the value from _SxD, if present. 1608a7a3177fSJung-uk Kim * Note illegal _S0D is evaluated because some systems expect this. 160910ce62b9SNate Lawson */ 1610a7a3177fSJung-uk Kim sc = device_get_softc(bus); 161110ce62b9SNate Lawson snprintf(sxd, sizeof(sxd), "_S%dD", sc->acpi_sstate); 161210ce62b9SNate Lawson status = acpi_GetInteger(handle, sxd, dstate); 1613a7a3177fSJung-uk Kim if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 1614a7a3177fSJung-uk Kim device_printf(dev, "failed to get %s on %s: %s\n", sxd, 1615a7a3177fSJung-uk Kim acpi_name(handle), AcpiFormatException(status)); 1616a7a3177fSJung-uk Kim return (ENXIO); 161710ce62b9SNate Lawson } 161810ce62b9SNate Lawson 1619a7a3177fSJung-uk Kim return (0); 162010ce62b9SNate Lawson } 162110ce62b9SNate Lawson 1622df8d2a32SNate Lawson /* Callback arg for our implementation of walking the namespace. */ 1623df8d2a32SNate Lawson struct acpi_device_scan_ctx { 1624df8d2a32SNate Lawson acpi_scan_cb_t user_fn; 1625df8d2a32SNate Lawson void *arg; 1626df8d2a32SNate Lawson ACPI_HANDLE parent; 1627df8d2a32SNate Lawson }; 1628df8d2a32SNate Lawson 1629ce619b2eSNate Lawson static ACPI_STATUS 1630df8d2a32SNate Lawson acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *arg, void **retval) 1631df8d2a32SNate Lawson { 1632df8d2a32SNate Lawson struct acpi_device_scan_ctx *ctx; 1633df8d2a32SNate Lawson device_t dev, old_dev; 1634df8d2a32SNate Lawson ACPI_STATUS status; 1635df8d2a32SNate Lawson ACPI_OBJECT_TYPE type; 1636df8d2a32SNate Lawson 1637df8d2a32SNate Lawson /* 1638df8d2a32SNate Lawson * Skip this device if we think we'll have trouble with it or it is 1639df8d2a32SNate Lawson * the parent where the scan began. 1640df8d2a32SNate Lawson */ 1641df8d2a32SNate Lawson ctx = (struct acpi_device_scan_ctx *)arg; 1642df8d2a32SNate Lawson if (acpi_avoid(h) || h == ctx->parent) 1643df8d2a32SNate Lawson return (AE_OK); 1644df8d2a32SNate Lawson 1645df8d2a32SNate Lawson /* If this is not a valid device type (e.g., a method), skip it. */ 1646df8d2a32SNate Lawson if (ACPI_FAILURE(AcpiGetType(h, &type))) 1647df8d2a32SNate Lawson return (AE_OK); 1648df8d2a32SNate Lawson if (type != ACPI_TYPE_DEVICE && type != ACPI_TYPE_PROCESSOR && 1649df8d2a32SNate Lawson type != ACPI_TYPE_THERMAL && type != ACPI_TYPE_POWER) 1650df8d2a32SNate Lawson return (AE_OK); 1651df8d2a32SNate Lawson 1652df8d2a32SNate Lawson /* 1653df8d2a32SNate Lawson * Call the user function with the current device. If it is unchanged 1654df8d2a32SNate Lawson * afterwards, return. Otherwise, we update the handle to the new dev. 1655df8d2a32SNate Lawson */ 1656df8d2a32SNate Lawson old_dev = acpi_get_device(h); 1657df8d2a32SNate Lawson dev = old_dev; 1658df8d2a32SNate Lawson status = ctx->user_fn(h, &dev, level, ctx->arg); 1659df8d2a32SNate Lawson if (ACPI_FAILURE(status) || old_dev == dev) 1660df8d2a32SNate Lawson return (status); 1661df8d2a32SNate Lawson 1662df8d2a32SNate Lawson /* Remove the old child and its connection to the handle. */ 1663df8d2a32SNate Lawson if (old_dev != NULL) { 1664df8d2a32SNate Lawson device_delete_child(device_get_parent(old_dev), old_dev); 1665df8d2a32SNate Lawson AcpiDetachData(h, acpi_fake_objhandler); 1666df8d2a32SNate Lawson } 1667df8d2a32SNate Lawson 1668df8d2a32SNate Lawson /* Recreate the handle association if the user created a device. */ 1669df8d2a32SNate Lawson if (dev != NULL) 1670df8d2a32SNate Lawson AcpiAttachData(h, acpi_fake_objhandler, dev); 1671df8d2a32SNate Lawson 1672df8d2a32SNate Lawson return (AE_OK); 1673df8d2a32SNate Lawson } 1674df8d2a32SNate Lawson 1675df8d2a32SNate Lawson static ACPI_STATUS 1676df8d2a32SNate Lawson acpi_device_scan_children(device_t bus, device_t dev, int max_depth, 1677df8d2a32SNate Lawson acpi_scan_cb_t user_fn, void *arg) 1678ce619b2eSNate Lawson { 1679ce619b2eSNate Lawson ACPI_HANDLE h; 1680df8d2a32SNate Lawson struct acpi_device_scan_ctx ctx; 1681ce619b2eSNate Lawson 1682df8d2a32SNate Lawson if (acpi_disabled("children")) 1683df8d2a32SNate Lawson return (AE_OK); 1684df8d2a32SNate Lawson 1685df8d2a32SNate Lawson if (dev == NULL) 1686df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1687df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1688ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1689df8d2a32SNate Lawson ctx.user_fn = user_fn; 1690df8d2a32SNate Lawson ctx.arg = arg; 1691df8d2a32SNate Lawson ctx.parent = h; 1692df8d2a32SNate Lawson return (AcpiWalkNamespace(ACPI_TYPE_ANY, h, max_depth, 16932272d050SJung-uk Kim acpi_device_scan_cb, NULL, &ctx, NULL)); 1694ce619b2eSNate Lawson } 1695ce619b2eSNate Lawson 169610ce62b9SNate Lawson /* 169710ce62b9SNate Lawson * Even though ACPI devices are not PCI, we use the PCI approach for setting 169810ce62b9SNate Lawson * device power states since it's close enough to ACPI. 169910ce62b9SNate Lawson */ 170010ce62b9SNate Lawson static int 1701a7a3177fSJung-uk Kim acpi_set_powerstate(device_t child, int state) 170210ce62b9SNate Lawson { 170310ce62b9SNate Lawson ACPI_HANDLE h; 170410ce62b9SNate Lawson ACPI_STATUS status; 170510ce62b9SNate Lawson 170610ce62b9SNate Lawson h = acpi_get_handle(child); 1707a0e73a12SJung-uk Kim if (state < ACPI_STATE_D0 || state > ACPI_D_STATES_MAX) 170810ce62b9SNate Lawson return (EINVAL); 170910ce62b9SNate Lawson if (h == NULL) 171010ce62b9SNate Lawson return (0); 171110ce62b9SNate Lawson 171210ce62b9SNate Lawson /* Ignore errors if the power methods aren't present. */ 171310ce62b9SNate Lawson status = acpi_pwr_switch_consumer(h, state); 1714a7a3177fSJung-uk Kim if (ACPI_SUCCESS(status)) { 1715a7a3177fSJung-uk Kim if (bootverbose) 1716a7a3177fSJung-uk Kim device_printf(child, "set ACPI power state D%d on %s\n", 1717a7a3177fSJung-uk Kim state, acpi_name(h)); 1718a7a3177fSJung-uk Kim } else if (status != AE_NOT_FOUND) 1719a7a3177fSJung-uk Kim device_printf(child, 1720a7a3177fSJung-uk Kim "failed to set ACPI power state D%d on %s: %s\n", state, 1721a7a3177fSJung-uk Kim acpi_name(h), AcpiFormatException(status)); 172210ce62b9SNate Lawson 1723a7a3177fSJung-uk Kim return (0); 172410ce62b9SNate Lawson } 172510ce62b9SNate Lawson 172632d18aa5SMike Smith static int 172732d18aa5SMike Smith acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids) 172832d18aa5SMike Smith { 17291e4925e8SNate Lawson int result, cid_count, i; 17301e4925e8SNate Lawson uint32_t lid, cids[8]; 1731bc0f2195SMike Smith 1732b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1733bc0f2195SMike Smith 1734bc0f2195SMike Smith /* 1735bc0f2195SMike Smith * ISA-style drivers attached to ACPI may persist and 1736bc0f2195SMike Smith * probe manually if we return ENOENT. We never want 1737bc0f2195SMike Smith * that to happen, so don't ever return it. 1738bc0f2195SMike Smith */ 1739bc0f2195SMike Smith result = ENXIO; 1740bc0f2195SMike Smith 1741be2b1797SNate Lawson /* Scan the supplied IDs for a match */ 1742b2566207STakanori Watanabe lid = acpi_isa_get_logicalid(child); 17431e4925e8SNate Lawson cid_count = acpi_isa_get_compatid(child, cids, 8); 1744bc0f2195SMike Smith while (ids && ids->ip_id) { 17451e4925e8SNate Lawson if (lid == ids->ip_id) { 1746bc0f2195SMike Smith result = 0; 1747bc0f2195SMike Smith goto out; 1748bc0f2195SMike Smith } 17491e4925e8SNate Lawson for (i = 0; i < cid_count; i++) { 17501e4925e8SNate Lawson if (cids[i] == ids->ip_id) { 17511e4925e8SNate Lawson result = 0; 17521e4925e8SNate Lawson goto out; 17531e4925e8SNate Lawson } 17541e4925e8SNate Lawson } 1755bc0f2195SMike Smith ids++; 1756bc0f2195SMike Smith } 1757be2b1797SNate Lawson 1758bc0f2195SMike Smith out: 17599e0dd54fSNate Lawson if (result == 0 && ids->ip_desc) 17609e0dd54fSNate Lawson device_set_desc(child, ids->ip_desc); 17619e0dd54fSNate Lawson 1762bc0f2195SMike Smith return_VALUE (result); 1763bc0f2195SMike Smith } 1764bc0f2195SMike Smith 1765d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 1766d320e05cSJohn Baldwin /* 1767d320e05cSJohn Baldwin * Look for a MCFG table. If it is present, use the settings for 1768d320e05cSJohn Baldwin * domain (segment) 0 to setup PCI config space access via the memory 1769d320e05cSJohn Baldwin * map. 1770d320e05cSJohn Baldwin */ 1771d320e05cSJohn Baldwin static void 1772d320e05cSJohn Baldwin acpi_enable_pcie(void) 1773d320e05cSJohn Baldwin { 1774d320e05cSJohn Baldwin ACPI_TABLE_HEADER *hdr; 1775d320e05cSJohn Baldwin ACPI_MCFG_ALLOCATION *alloc, *end; 1776d320e05cSJohn Baldwin ACPI_STATUS status; 1777d320e05cSJohn Baldwin 1778d320e05cSJohn Baldwin status = AcpiGetTable(ACPI_SIG_MCFG, 1, &hdr); 1779d320e05cSJohn Baldwin if (ACPI_FAILURE(status)) 1780d320e05cSJohn Baldwin return; 1781d320e05cSJohn Baldwin 1782d320e05cSJohn Baldwin end = (ACPI_MCFG_ALLOCATION *)((char *)hdr + hdr->Length); 1783d320e05cSJohn Baldwin alloc = (ACPI_MCFG_ALLOCATION *)((ACPI_TABLE_MCFG *)hdr + 1); 1784d320e05cSJohn Baldwin while (alloc < end) { 1785d320e05cSJohn Baldwin if (alloc->PciSegment == 0) { 1786d320e05cSJohn Baldwin pcie_cfgregopen(alloc->Address, alloc->StartBusNumber, 1787d320e05cSJohn Baldwin alloc->EndBusNumber); 1788d320e05cSJohn Baldwin return; 1789d320e05cSJohn Baldwin } 1790d320e05cSJohn Baldwin alloc++; 1791d320e05cSJohn Baldwin } 1792d320e05cSJohn Baldwin } 1793d320e05cSJohn Baldwin #endif 1794d320e05cSJohn Baldwin 1795bc0f2195SMike Smith /* 179633332dc2SNate Lawson * Scan all of the ACPI namespace and attach child devices. 179715e32d5dSMike Smith * 179833332dc2SNate Lawson * We should only expect to find devices in the \_PR, \_TZ, \_SI, and 179933332dc2SNate Lawson * \_SB scopes, and \_PR and \_TZ became obsolete in the ACPI 2.0 spec. 180033332dc2SNate Lawson * However, in violation of the spec, some systems place their PCI link 180133332dc2SNate Lawson * devices in \, so we have to walk the whole namespace. We check the 180233332dc2SNate Lawson * type of namespace nodes, so this should be ok. 180315e32d5dSMike Smith */ 180415e32d5dSMike Smith static void 180515e32d5dSMike Smith acpi_probe_children(device_t bus) 180615e32d5dSMike Smith { 180715e32d5dSMike Smith 1808b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 18090ae55423SMike Smith 181015e32d5dSMike Smith /* 181115e32d5dSMike Smith * Scan the namespace and insert placeholders for all the devices that 1812edc13633SNate Lawson * we find. We also probe/attach any early devices. 181315e32d5dSMike Smith * 181415e32d5dSMike Smith * Note that we use AcpiWalkNamespace rather than AcpiGetDevices because 1815be2b1797SNate Lawson * we want to create nodes for all devices, not just those that are 1816be2b1797SNate Lawson * currently present. (This assumes that we don't want to create/remove 1817be2b1797SNate Lawson * devices as they appear, which might be smarter.) 181815e32d5dSMike Smith */ 18194c1cdee6SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "namespace scan\n")); 182033332dc2SNate Lawson AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 100, acpi_probe_child, 18212272d050SJung-uk Kim NULL, bus, NULL); 182215e32d5dSMike Smith 1823adad4744SNate Lawson /* Pre-allocate resources for our rman from any sysresource devices. */ 1824adad4744SNate Lawson acpi_sysres_alloc(bus); 1825adad4744SNate Lawson 1826ea233199SJohn Baldwin /* Reserve resources already allocated to children. */ 1827ea233199SJohn Baldwin acpi_reserve_resources(bus); 1828ea233199SJohn Baldwin 1829edc13633SNate Lawson /* Create any static children by calling device identify methods. */ 1830edc13633SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n")); 1831edc13633SNate Lawson bus_generic_probe(bus); 1832edc13633SNate Lawson 18335e66b8e2SJohn Baldwin /* Probe/attach all children, created statically and from the namespace. */ 18340430ba9eSAndriy Gapon ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n")); 183515e32d5dSMike Smith bus_generic_attach(bus); 18360ae55423SMike Smith 183788a79fc0SNate Lawson /* Attach wake sysctls. */ 18385c9ea25eSNate Lawson acpi_wake_sysctl_walk(bus); 183988a79fc0SNate Lawson 1840bc0f2195SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "done attaching children\n")); 18410ae55423SMike Smith return_VOID; 184215e32d5dSMike Smith } 184315e32d5dSMike Smith 1844b82ca9a9SNate Lawson /* 1845d227204dSJohn Baldwin * Determine the probe order for a given device. 1846b82ca9a9SNate Lawson */ 1847d227204dSJohn Baldwin static void 1848b82ca9a9SNate Lawson acpi_probe_order(ACPI_HANDLE handle, int *order) 184991233413SNate Lawson { 1850463e0f91SJohn Baldwin ACPI_OBJECT_TYPE type; 185191233413SNate Lawson 1852b82ca9a9SNate Lawson /* 1853404b0d10SJung-uk Kim * 0. CPUs 1854404b0d10SJung-uk Kim * 1. I/O port and memory system resource holders 1855404b0d10SJung-uk Kim * 2. Clocks and timers (to handle early accesses) 1856b1f9b996SAndriy Gapon * 3. Embedded controllers (to handle early accesses) 1857b1f9b996SAndriy Gapon * 4. PCI Link Devices 1858b82ca9a9SNate Lawson */ 1859463e0f91SJohn Baldwin AcpiGetType(handle, &type); 1860aa835160SAndriy Gapon if (type == ACPI_TYPE_PROCESSOR) 1861404b0d10SJung-uk Kim *order = 0; 1862404b0d10SJung-uk Kim else if (acpi_MatchHid(handle, "PNP0C01") || 1863404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0C02")) 186491233413SNate Lawson *order = 1; 1865404b0d10SJung-uk Kim else if (acpi_MatchHid(handle, "PNP0100") || 1866404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0103") || 1867404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0B00")) 186891233413SNate Lawson *order = 2; 1869aa835160SAndriy Gapon else if (acpi_MatchHid(handle, "PNP0C09")) 1870b460c6f8SJohn Baldwin *order = 3; 1871aa835160SAndriy Gapon else if (acpi_MatchHid(handle, "PNP0C0F")) 1872aa835160SAndriy Gapon *order = 4; 187391233413SNate Lawson } 187491233413SNate Lawson 187515e32d5dSMike Smith /* 187615e32d5dSMike Smith * Evaluate a child device and determine whether we might attach a device to 187715e32d5dSMike Smith * it. 187815e32d5dSMike Smith */ 187915e32d5dSMike Smith static ACPI_STATUS 188015e32d5dSMike Smith acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 188115e32d5dSMike Smith { 18825a77b11bSJung-uk Kim struct acpi_prw_data prw; 188315e32d5dSMike Smith ACPI_OBJECT_TYPE type; 1884858a52f4SMitsuru IWASAKI ACPI_HANDLE h; 188533332dc2SNate Lawson device_t bus, child; 1886495a4144SJung-uk Kim char *handle_str; 1887e4cd9dcfSJohn Baldwin int order; 188815e32d5dSMike Smith 1889b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 18900ae55423SMike Smith 1891495a4144SJung-uk Kim if (acpi_disabled("children")) 1892495a4144SJung-uk Kim return_ACPI_STATUS (AE_OK); 1893495a4144SJung-uk Kim 1894be2b1797SNate Lawson /* Skip this device if we think we'll have trouble with it. */ 18950ae55423SMike Smith if (acpi_avoid(handle)) 18960ae55423SMike Smith return_ACPI_STATUS (AE_OK); 18970ae55423SMike Smith 189891233413SNate Lawson bus = (device_t)context; 1899b53f2771SMike Smith if (ACPI_SUCCESS(AcpiGetType(handle, &type))) { 1900495a4144SJung-uk Kim handle_str = acpi_name(handle); 190115e32d5dSMike Smith switch (type) { 190215e32d5dSMike Smith case ACPI_TYPE_DEVICE: 1903495a4144SJung-uk Kim /* 1904495a4144SJung-uk Kim * Since we scan from \, be sure to skip system scope objects. 1905495a4144SJung-uk Kim * \_SB_ and \_TZ_ are defined in ACPICA as devices to work around 1906affa1826SJung-uk Kim * BIOS bugs. For example, \_SB_ is to allow \_SB_._INI to be run 1907495a4144SJung-uk Kim * during the intialization and \_TZ_ is to support Notify() on it. 1908495a4144SJung-uk Kim */ 1909495a4144SJung-uk Kim if (strcmp(handle_str, "\\_SB_") == 0 || 1910495a4144SJung-uk Kim strcmp(handle_str, "\\_TZ_") == 0) 1911495a4144SJung-uk Kim break; 19125a77b11bSJung-uk Kim if (acpi_parse_prw(handle, &prw) == 0) 19135a77b11bSJung-uk Kim AcpiSetupGpeForWake(handle, prw.gpe_handle, prw.gpe_bit); 1914183c8af3SJohn Baldwin 1915183c8af3SJohn Baldwin /* 1916183c8af3SJohn Baldwin * Ignore devices that do not have a _HID or _CID. They should 1917183c8af3SJohn Baldwin * be discovered by other buses (e.g. the PCI bus driver). 1918183c8af3SJohn Baldwin */ 1919183c8af3SJohn Baldwin if (!acpi_has_hid(handle)) 1920183c8af3SJohn Baldwin break; 1921495a4144SJung-uk Kim /* FALLTHROUGH */ 192215e32d5dSMike Smith case ACPI_TYPE_PROCESSOR: 192315e32d5dSMike Smith case ACPI_TYPE_THERMAL: 192415e32d5dSMike Smith case ACPI_TYPE_POWER: 192533332dc2SNate Lawson /* 1926463e0f91SJohn Baldwin * Create a placeholder device for this node. Sort the 1927463e0f91SJohn Baldwin * placeholder so that the probe/attach passes will run 1928463e0f91SJohn Baldwin * breadth-first. Orders less than ACPI_DEV_BASE_ORDER 1929463e0f91SJohn Baldwin * are reserved for special objects (i.e., system 1930b1f9b996SAndriy Gapon * resources). 193115e32d5dSMike Smith */ 193233332dc2SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "scanning '%s'\n", handle_str)); 1933404b0d10SJung-uk Kim order = level * 10 + ACPI_DEV_BASE_ORDER; 1934da72d149SNate Lawson acpi_probe_order(handle, &order); 1935e4cd9dcfSJohn Baldwin child = BUS_ADD_CHILD(bus, order, NULL, -1); 1936bc0f2195SMike Smith if (child == NULL) 1937bc0f2195SMike Smith break; 193859a890e6SNate Lawson 193959a890e6SNate Lawson /* Associate the handle with the device_t and vice versa. */ 194015e32d5dSMike Smith acpi_set_handle(child, handle); 194159a890e6SNate Lawson AcpiAttachData(handle, acpi_fake_objhandler, child); 1942bc0f2195SMike Smith 1943bc0f2195SMike Smith /* 1944b519f9d6SMike Smith * Check that the device is present. If it's not present, 1945b519f9d6SMike Smith * leave it disabled (so that we have a device_t attached to 1946b519f9d6SMike Smith * the handle, but we don't probe it). 1947893f750aSNate Lawson * 1948893f750aSNate Lawson * XXX PCI link devices sometimes report "present" but not 1949893f750aSNate Lawson * "functional" (i.e. if disabled). Go ahead and probe them 1950893f750aSNate Lawson * anyway since we may enable them later. 1951b519f9d6SMike Smith */ 1952858a52f4SMitsuru IWASAKI if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) { 1953858a52f4SMitsuru IWASAKI /* Never disable PCI link devices. */ 1954858a52f4SMitsuru IWASAKI if (acpi_MatchHid(handle, "PNP0C0F")) 1955858a52f4SMitsuru IWASAKI break; 1956858a52f4SMitsuru IWASAKI /* 1957858a52f4SMitsuru IWASAKI * Docking stations should remain enabled since the system 1958858a52f4SMitsuru IWASAKI * may be undocked at boot. 1959858a52f4SMitsuru IWASAKI */ 1960858a52f4SMitsuru IWASAKI if (ACPI_SUCCESS(AcpiGetHandle(handle, "_DCK", &h))) 1961858a52f4SMitsuru IWASAKI break; 1962858a52f4SMitsuru IWASAKI 1963b519f9d6SMike Smith device_disable(child); 1964b519f9d6SMike Smith break; 1965b519f9d6SMike Smith } 1966b519f9d6SMike Smith 1967b519f9d6SMike Smith /* 1968bc0f2195SMike Smith * Get the device's resource settings and attach them. 1969bc0f2195SMike Smith * Note that if the device has _PRS but no _CRS, we need 1970bc0f2195SMike Smith * to decide when it's appropriate to try to configure the 1971bc0f2195SMike Smith * device. Ignore the return value here; it's OK for the 1972bc0f2195SMike Smith * device not to have any resources. 1973bc0f2195SMike Smith */ 197472ad60adSNate Lawson acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL); 19750ae55423SMike Smith break; 197615e32d5dSMike Smith } 197715e32d5dSMike Smith } 1978be2b1797SNate Lawson 19790ae55423SMike Smith return_ACPI_STATUS (AE_OK); 198015e32d5dSMike Smith } 198115e32d5dSMike Smith 198259a890e6SNate Lawson /* 198359a890e6SNate Lawson * AcpiAttachData() requires an object handler but never uses it. This is a 198459a890e6SNate Lawson * placeholder object handler so we can store a device_t in an ACPI_HANDLE. 198559a890e6SNate Lawson */ 198659a890e6SNate Lawson void 198792488a57SJung-uk Kim acpi_fake_objhandler(ACPI_HANDLE h, void *data) 198859a890e6SNate Lawson { 198959a890e6SNate Lawson } 199059a890e6SNate Lawson 199115e32d5dSMike Smith static void 199215e32d5dSMike Smith acpi_shutdown_final(void *arg, int howto) 199315e32d5dSMike Smith { 19942d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 199571804adcSJung-uk Kim register_t intr; 1996d33f4987STakanori Watanabe ACPI_STATUS status; 1997eeb3a05fSNate Lawson 1998eeb3a05fSNate Lawson /* 199980f0e4c2SNate Lawson * XXX Shutdown code should only run on the BSP (cpuid 0). 200080f0e4c2SNate Lawson * Some chipsets do not power off the system correctly if called from 200180f0e4c2SNate Lawson * an AP. 2002eeb3a05fSNate Lawson */ 2003eeb3a05fSNate Lawson if ((howto & RB_POWEROFF) != 0) { 2004904bf0c2SNate Lawson status = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 2005904bf0c2SNate Lawson if (ACPI_FAILURE(status)) { 20062d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 2007904bf0c2SNate Lawson AcpiFormatException(status)); 2008904bf0c2SNate Lawson return; 2009904bf0c2SNate Lawson } 20102d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Powering system off\n"); 201171804adcSJung-uk Kim intr = intr_disable(); 20121df130f1SJung-uk Kim status = AcpiEnterSleepState(ACPI_STATE_S5); 201371804adcSJung-uk Kim if (ACPI_FAILURE(status)) { 201471804adcSJung-uk Kim intr_restore(intr); 20152d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - %s\n", 20162d0c82e8SJung-uk Kim AcpiFormatException(status)); 201771804adcSJung-uk Kim } else { 201815e32d5dSMike Smith DELAY(1000000); 201971804adcSJung-uk Kim intr_restore(intr); 20202d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - timeout\n"); 202115e32d5dSMike Smith } 2022ac731af5SJung-uk Kim } else if ((howto & RB_HALT) == 0 && sc->acpi_handle_reboot) { 2023d85e6785SNate Lawson /* Reboot using the reset register. */ 2024ac731af5SJung-uk Kim status = AcpiReset(); 2025ac731af5SJung-uk Kim if (ACPI_SUCCESS(status)) { 202687a500cdSNate Lawson DELAY(1000000); 20272d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - timeout\n"); 2028ac731af5SJung-uk Kim } else if (status != AE_NOT_EXIST) 2029ac731af5SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - %s\n", 2030ac731af5SJung-uk Kim AcpiFormatException(status)); 2031d85e6785SNate Lawson } else if (sc->acpi_do_disable && panicstr == NULL) { 2032d85e6785SNate Lawson /* 2033d85e6785SNate Lawson * Only disable ACPI if the user requested. On some systems, writing 2034d85e6785SNate Lawson * the disable value to SMI_CMD hangs the system. 2035d85e6785SNate Lawson */ 20362d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Shutting down\n"); 203780f0e4c2SNate Lawson AcpiTerminate(); 203880f0e4c2SNate Lawson } 203915e32d5dSMike Smith } 204015e32d5dSMike Smith 204113d4f7baSMitsuru IWASAKI static void 204213d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(struct acpi_softc *sc) 204313d4f7baSMitsuru IWASAKI { 204413d4f7baSMitsuru IWASAKI static int first_time = 1; 204513d4f7baSMitsuru IWASAKI 204613d4f7baSMitsuru IWASAKI /* Enable and clear fixed events and install handlers. */ 20472be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 204859ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 204913d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON, 205033febf93SNate Lawson acpi_event_power_button_sleep, sc); 2051be2b1797SNate Lawson if (first_time) 20526c0e8467SNate Lawson device_printf(sc->acpi_dev, "Power Button (fixed)\n"); 205313d4f7baSMitsuru IWASAKI } 20542be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 205559ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 205613d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON, 205733febf93SNate Lawson acpi_event_sleep_button_sleep, sc); 2058be2b1797SNate Lawson if (first_time) 20596c0e8467SNate Lawson device_printf(sc->acpi_dev, "Sleep Button (fixed)\n"); 206013d4f7baSMitsuru IWASAKI } 206113d4f7baSMitsuru IWASAKI 206213d4f7baSMitsuru IWASAKI first_time = 0; 206313d4f7baSMitsuru IWASAKI } 206413d4f7baSMitsuru IWASAKI 206515e32d5dSMike Smith /* 2066c5ba0be4SMike Smith * Returns true if the device is actually present and should 2067c5ba0be4SMike Smith * be attached to. This requires the present, enabled, UI-visible 2068c5ba0be4SMike Smith * and diagnostics-passed bits to be set. 2069c5ba0be4SMike Smith */ 2070c5ba0be4SMike Smith BOOLEAN 2071c5ba0be4SMike Smith acpi_DeviceIsPresent(device_t dev) 2072c5ba0be4SMike Smith { 20731e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 2074c5ba0be4SMike Smith ACPI_HANDLE h; 207592488a57SJung-uk Kim BOOLEAN present; 2076c5ba0be4SMike Smith 207792488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 207892488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2079c5ba0be4SMike Smith return (FALSE); 2080be2b1797SNate Lawson 2081be2b1797SNate Lawson /* If no _STA method, must be present */ 208292488a57SJung-uk Kim present = (devinfo->Valid & ACPI_VALID_STA) == 0 || 208392488a57SJung-uk Kim ACPI_DEVICE_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE; 2084be2b1797SNate Lawson 208592488a57SJung-uk Kim AcpiOsFree(devinfo); 208692488a57SJung-uk Kim return (present); 2087c5ba0be4SMike Smith } 2088c5ba0be4SMike Smith 2089c5ba0be4SMike Smith /* 2090b53f2771SMike Smith * Returns true if the battery is actually present and inserted. 2091b53f2771SMike Smith */ 2092b53f2771SMike Smith BOOLEAN 2093b53f2771SMike Smith acpi_BatteryIsPresent(device_t dev) 2094b53f2771SMike Smith { 20951e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 2096b53f2771SMike Smith ACPI_HANDLE h; 209792488a57SJung-uk Kim BOOLEAN present; 2098b53f2771SMike Smith 209992488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 210092488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2101b53f2771SMike Smith return (FALSE); 2102be2b1797SNate Lawson 2103be2b1797SNate Lawson /* If no _STA method, must be present */ 210492488a57SJung-uk Kim present = (devinfo->Valid & ACPI_VALID_STA) == 0 || 210592488a57SJung-uk Kim ACPI_BATTERY_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE; 2106be2b1797SNate Lawson 210792488a57SJung-uk Kim AcpiOsFree(devinfo); 210892488a57SJung-uk Kim return (present); 2109b53f2771SMike Smith } 2110b53f2771SMike Smith 2111b53f2771SMike Smith /* 2112183c8af3SJohn Baldwin * Returns true if a device has at least one valid device ID. 2113183c8af3SJohn Baldwin */ 2114183c8af3SJohn Baldwin static BOOLEAN 2115183c8af3SJohn Baldwin acpi_has_hid(ACPI_HANDLE h) 2116183c8af3SJohn Baldwin { 2117183c8af3SJohn Baldwin ACPI_DEVICE_INFO *devinfo; 2118183c8af3SJohn Baldwin BOOLEAN ret; 2119183c8af3SJohn Baldwin 2120183c8af3SJohn Baldwin if (h == NULL || 2121183c8af3SJohn Baldwin ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2122183c8af3SJohn Baldwin return (FALSE); 2123183c8af3SJohn Baldwin 2124183c8af3SJohn Baldwin ret = FALSE; 2125183c8af3SJohn Baldwin if ((devinfo->Valid & ACPI_VALID_HID) != 0) 2126183c8af3SJohn Baldwin ret = TRUE; 2127183c8af3SJohn Baldwin else if ((devinfo->Valid & ACPI_VALID_CID) != 0) 2128183c8af3SJohn Baldwin if (devinfo->CompatibleIdList.Count > 0) 2129183c8af3SJohn Baldwin ret = TRUE; 2130183c8af3SJohn Baldwin 2131183c8af3SJohn Baldwin AcpiOsFree(devinfo); 2132183c8af3SJohn Baldwin return (ret); 2133183c8af3SJohn Baldwin } 2134183c8af3SJohn Baldwin 2135183c8af3SJohn Baldwin /* 213691233413SNate Lawson * Match a HID string against a handle 213715e32d5dSMike Smith */ 21383c4c08dcSAlexander Motin BOOLEAN 2139ce619b2eSNate Lawson acpi_MatchHid(ACPI_HANDLE h, const char *hid) 214015e32d5dSMike Smith { 21411e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 214292488a57SJung-uk Kim BOOLEAN ret; 214392488a57SJung-uk Kim int i; 214492488a57SJung-uk Kim 214592488a57SJung-uk Kim if (hid == NULL || h == NULL || 214692488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 214792488a57SJung-uk Kim return (FALSE); 214815e32d5dSMike Smith 21491e4925e8SNate Lawson ret = FALSE; 2150c59c9a8eSJohn Baldwin if ((devinfo->Valid & ACPI_VALID_HID) != 0 && 215192488a57SJung-uk Kim strcmp(hid, devinfo->HardwareId.String) == 0) 21521e4925e8SNate Lawson ret = TRUE; 215392488a57SJung-uk Kim else if ((devinfo->Valid & ACPI_VALID_CID) != 0) 215492488a57SJung-uk Kim for (i = 0; i < devinfo->CompatibleIdList.Count; i++) { 215592488a57SJung-uk Kim if (strcmp(hid, devinfo->CompatibleIdList.Ids[i].String) == 0) { 21561e4925e8SNate Lawson ret = TRUE; 21571e4925e8SNate Lawson break; 21581e4925e8SNate Lawson } 21591e4925e8SNate Lawson } 2160be2b1797SNate Lawson 216192488a57SJung-uk Kim AcpiOsFree(devinfo); 21621e4925e8SNate Lawson return (ret); 216315e32d5dSMike Smith } 216415e32d5dSMike Smith 216515e32d5dSMike Smith /* 2166c5ba0be4SMike Smith * Return the handle of a named object within our scope, ie. that of (parent) 2167c5ba0be4SMike Smith * or one if its parents. 2168c5ba0be4SMike Smith */ 2169c5ba0be4SMike Smith ACPI_STATUS 2170c5ba0be4SMike Smith acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result) 2171c5ba0be4SMike Smith { 2172c5ba0be4SMike Smith ACPI_HANDLE r; 2173c5ba0be4SMike Smith ACPI_STATUS status; 2174c5ba0be4SMike Smith 2175be2b1797SNate Lawson /* Walk back up the tree to the root */ 2176c5ba0be4SMike Smith for (;;) { 2177be2b1797SNate Lawson status = AcpiGetHandle(parent, path, &r); 2178be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2179c5ba0be4SMike Smith *result = r; 2180c5ba0be4SMike Smith return (AE_OK); 2181c5ba0be4SMike Smith } 2182bee4aa4aSNate Lawson /* XXX Return error here? */ 2183c5ba0be4SMike Smith if (status != AE_NOT_FOUND) 2184c5ba0be4SMike Smith return (AE_OK); 2185b53f2771SMike Smith if (ACPI_FAILURE(AcpiGetParent(parent, &r))) 2186c5ba0be4SMike Smith return (AE_NOT_FOUND); 2187c5ba0be4SMike Smith parent = r; 2188c5ba0be4SMike Smith } 2189c5ba0be4SMike Smith } 2190c5ba0be4SMike Smith 2191c5ba0be4SMike Smith /* 2192c5ba0be4SMike Smith * Allocate a buffer with a preset data size. 2193c5ba0be4SMike Smith */ 2194c5ba0be4SMike Smith ACPI_BUFFER * 2195c5ba0be4SMike Smith acpi_AllocBuffer(int size) 2196c5ba0be4SMike Smith { 2197c5ba0be4SMike Smith ACPI_BUFFER *buf; 2198c5ba0be4SMike Smith 2199c5ba0be4SMike Smith if ((buf = malloc(size + sizeof(*buf), M_ACPIDEV, M_NOWAIT)) == NULL) 2200c5ba0be4SMike Smith return (NULL); 2201c5ba0be4SMike Smith buf->Length = size; 2202c5ba0be4SMike Smith buf->Pointer = (void *)(buf + 1); 2203c5ba0be4SMike Smith return (buf); 2204c5ba0be4SMike Smith } 2205c5ba0be4SMike Smith 2206c310653eSNate Lawson ACPI_STATUS 2207cc58e4eeSNate Lawson acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number) 2208c310653eSNate Lawson { 2209c310653eSNate Lawson ACPI_OBJECT arg1; 2210c310653eSNate Lawson ACPI_OBJECT_LIST args; 2211c310653eSNate Lawson 2212c310653eSNate Lawson arg1.Type = ACPI_TYPE_INTEGER; 2213c310653eSNate Lawson arg1.Integer.Value = number; 2214c310653eSNate Lawson args.Count = 1; 2215c310653eSNate Lawson args.Pointer = &arg1; 2216c310653eSNate Lawson 2217c310653eSNate Lawson return (AcpiEvaluateObject(handle, path, &args, NULL)); 2218c310653eSNate Lawson } 2219c310653eSNate Lawson 2220c5ba0be4SMike Smith /* 2221c5ba0be4SMike Smith * Evaluate a path that should return an integer. 2222c5ba0be4SMike Smith */ 2223c5ba0be4SMike Smith ACPI_STATUS 2224cc58e4eeSNate Lawson acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number) 2225c5ba0be4SMike Smith { 2226be2b1797SNate Lawson ACPI_STATUS status; 2227c5ba0be4SMike Smith ACPI_BUFFER buf; 2228c573e654SMitsuru IWASAKI ACPI_OBJECT param; 2229c5ba0be4SMike Smith 2230c5ba0be4SMike Smith if (handle == NULL) 2231c5ba0be4SMike Smith handle = ACPI_ROOT_OBJECT; 22320c7da7acSJohn Baldwin 22330c7da7acSJohn Baldwin /* 22340c7da7acSJohn Baldwin * Assume that what we've been pointed at is an Integer object, or 22350c7da7acSJohn Baldwin * a method that will return an Integer. 22360c7da7acSJohn Baldwin */ 2237c5ba0be4SMike Smith buf.Pointer = ¶m; 2238c5ba0be4SMike Smith buf.Length = sizeof(param); 2239be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2240be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2241be2b1797SNate Lawson if (param.Type == ACPI_TYPE_INTEGER) 2242c5ba0be4SMike Smith *number = param.Integer.Value; 2243be2b1797SNate Lawson else 2244be2b1797SNate Lawson status = AE_TYPE; 2245c5ba0be4SMike Smith } 22460c7da7acSJohn Baldwin 22470c7da7acSJohn Baldwin /* 22480c7da7acSJohn Baldwin * In some applications, a method that's expected to return an Integer 22490c7da7acSJohn Baldwin * may instead return a Buffer (probably to simplify some internal 22500c7da7acSJohn Baldwin * arithmetic). We'll try to fetch whatever it is, and if it's a Buffer, 22510c7da7acSJohn Baldwin * convert it into an Integer as best we can. 22520c7da7acSJohn Baldwin * 22530c7da7acSJohn Baldwin * This is a hack. 22540c7da7acSJohn Baldwin */ 2255be2b1797SNate Lawson if (status == AE_BUFFER_OVERFLOW) { 2256b53f2771SMike Smith if ((buf.Pointer = AcpiOsAllocate(buf.Length)) == NULL) { 2257be2b1797SNate Lawson status = AE_NO_MEMORY; 22580c7da7acSJohn Baldwin } else { 2259be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2260be2b1797SNate Lawson if (ACPI_SUCCESS(status)) 2261be2b1797SNate Lawson status = acpi_ConvertBufferToInteger(&buf, number); 22620c7da7acSJohn Baldwin AcpiOsFree(buf.Pointer); 22630c7da7acSJohn Baldwin } 2264f97739daSNate Lawson } 2265be2b1797SNate Lawson return (status); 2266c5ba0be4SMike Smith } 2267c5ba0be4SMike Smith 2268c573e654SMitsuru IWASAKI ACPI_STATUS 2269cc58e4eeSNate Lawson acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number) 2270c573e654SMitsuru IWASAKI { 2271c573e654SMitsuru IWASAKI ACPI_OBJECT *p; 2272dba55fa2SNate Lawson UINT8 *val; 2273c573e654SMitsuru IWASAKI int i; 2274c573e654SMitsuru IWASAKI 2275c573e654SMitsuru IWASAKI p = (ACPI_OBJECT *)bufp->Pointer; 2276c573e654SMitsuru IWASAKI if (p->Type == ACPI_TYPE_INTEGER) { 2277c573e654SMitsuru IWASAKI *number = p->Integer.Value; 2278c573e654SMitsuru IWASAKI return (AE_OK); 2279c573e654SMitsuru IWASAKI } 2280c573e654SMitsuru IWASAKI if (p->Type != ACPI_TYPE_BUFFER) 2281c573e654SMitsuru IWASAKI return (AE_TYPE); 2282c573e654SMitsuru IWASAKI if (p->Buffer.Length > sizeof(int)) 2283c573e654SMitsuru IWASAKI return (AE_BAD_DATA); 2284be2b1797SNate Lawson 2285c573e654SMitsuru IWASAKI *number = 0; 2286dba55fa2SNate Lawson val = p->Buffer.Pointer; 2287c573e654SMitsuru IWASAKI for (i = 0; i < p->Buffer.Length; i++) 2288dba55fa2SNate Lawson *number += val[i] << (i * 8); 2289c573e654SMitsuru IWASAKI return (AE_OK); 2290c573e654SMitsuru IWASAKI } 2291c573e654SMitsuru IWASAKI 2292c5ba0be4SMike Smith /* 2293c5ba0be4SMike Smith * Iterate over the elements of an a package object, calling the supplied 2294c5ba0be4SMike Smith * function for each element. 2295c5ba0be4SMike Smith * 2296c5ba0be4SMike Smith * XXX possible enhancement might be to abort traversal on error. 2297c5ba0be4SMike Smith */ 2298c5ba0be4SMike Smith ACPI_STATUS 2299be2b1797SNate Lawson acpi_ForeachPackageObject(ACPI_OBJECT *pkg, 2300be2b1797SNate Lawson void (*func)(ACPI_OBJECT *comp, void *arg), void *arg) 2301c5ba0be4SMike Smith { 2302c5ba0be4SMike Smith ACPI_OBJECT *comp; 2303c5ba0be4SMike Smith int i; 2304c5ba0be4SMike Smith 2305be2b1797SNate Lawson if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 2306c5ba0be4SMike Smith return (AE_BAD_PARAMETER); 2307c5ba0be4SMike Smith 2308be2b1797SNate Lawson /* Iterate over components */ 2309be2b1797SNate Lawson i = 0; 2310be2b1797SNate Lawson comp = pkg->Package.Elements; 2311be2b1797SNate Lawson for (; i < pkg->Package.Count; i++, comp++) 2312c5ba0be4SMike Smith func(comp, arg); 2313c5ba0be4SMike Smith 2314c5ba0be4SMike Smith return (AE_OK); 2315c5ba0be4SMike Smith } 2316c5ba0be4SMike Smith 23176f69255bSMike Smith /* 23186f69255bSMike Smith * Find the (index)th resource object in a set. 23196f69255bSMike Smith */ 23206f69255bSMike Smith ACPI_STATUS 23216d63101aSMike Smith acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp) 23226f69255bSMike Smith { 23236d63101aSMike Smith ACPI_RESOURCE *rp; 23246f69255bSMike Smith int i; 23256f69255bSMike Smith 23266d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 23276f69255bSMike Smith i = index; 23286d63101aSMike Smith while (i-- > 0) { 2329be2b1797SNate Lawson /* Range check */ 23306d63101aSMike Smith if (rp > (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 23316f69255bSMike Smith return (AE_BAD_PARAMETER); 2332be2b1797SNate Lawson 2333be2b1797SNate Lawson /* Check for terminator */ 2334e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 23356d63101aSMike Smith return (AE_NOT_FOUND); 2336abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 23376f69255bSMike Smith } 23386f69255bSMike Smith if (resp != NULL) 23396d63101aSMike Smith *resp = rp; 2340be2b1797SNate Lawson 23416d63101aSMike Smith return (AE_OK); 23426d63101aSMike Smith } 23436d63101aSMike Smith 23446d63101aSMike Smith /* 23456d63101aSMike Smith * Append an ACPI_RESOURCE to an ACPI_BUFFER. 23466d63101aSMike Smith * 23476d63101aSMike Smith * Given a pointer to an ACPI_RESOURCE structure, expand the ACPI_BUFFER 23486d63101aSMike Smith * provided to contain it. If the ACPI_BUFFER is empty, allocate a sensible 23496d63101aSMike Smith * backing block. If the ACPI_RESOURCE is NULL, return an empty set of 23506d63101aSMike Smith * resources. 23516d63101aSMike Smith */ 23526d63101aSMike Smith #define ACPI_INITIAL_RESOURCE_BUFFER_SIZE 512 23536d63101aSMike Smith 23546d63101aSMike Smith ACPI_STATUS 23556d63101aSMike Smith acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res) 23566d63101aSMike Smith { 23576d63101aSMike Smith ACPI_RESOURCE *rp; 23586d63101aSMike Smith void *newp; 23596d63101aSMike Smith 2360be2b1797SNate Lawson /* Initialise the buffer if necessary. */ 23616d63101aSMike Smith if (buf->Pointer == NULL) { 23626d63101aSMike Smith buf->Length = ACPI_INITIAL_RESOURCE_BUFFER_SIZE; 23636d63101aSMike Smith if ((buf->Pointer = AcpiOsAllocate(buf->Length)) == NULL) 23646d63101aSMike Smith return (AE_NO_MEMORY); 23656d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 2366e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 236760d306f0SJohn Baldwin rp->Length = ACPI_RS_SIZE_MIN; 23686d63101aSMike Smith } 23696d63101aSMike Smith if (res == NULL) 23706d63101aSMike Smith return (AE_OK); 23716d63101aSMike Smith 23726d63101aSMike Smith /* 23736d63101aSMike Smith * Scan the current buffer looking for the terminator. 23746d63101aSMike Smith * This will either find the terminator or hit the end 23756d63101aSMike Smith * of the buffer and return an error. 23766d63101aSMike Smith */ 23776d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 23786d63101aSMike Smith for (;;) { 2379be2b1797SNate Lawson /* Range check, don't go outside the buffer */ 23806d63101aSMike Smith if (rp >= (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 23816d63101aSMike Smith return (AE_BAD_PARAMETER); 2382e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 23836d63101aSMike Smith break; 2384abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 23856d63101aSMike Smith } 23866d63101aSMike Smith 23876d63101aSMike Smith /* 23886d63101aSMike Smith * Check the size of the buffer and expand if required. 23896d63101aSMike Smith * 23906d63101aSMike Smith * Required size is: 23916d63101aSMike Smith * size of existing resources before terminator + 23926d63101aSMike Smith * size of new resource and header + 23936d63101aSMike Smith * size of terminator. 23946d63101aSMike Smith * 23956d63101aSMike Smith * Note that this loop should really only run once, unless 23966d63101aSMike Smith * for some reason we are stuffing a *really* huge resource. 23976d63101aSMike Smith */ 23986d63101aSMike Smith while ((((u_int8_t *)rp - (u_int8_t *)buf->Pointer) + 2399e8d472a7SJung-uk Kim res->Length + ACPI_RS_SIZE_NO_DATA + 2400e8d472a7SJung-uk Kim ACPI_RS_SIZE_MIN) >= buf->Length) { 24016d63101aSMike Smith if ((newp = AcpiOsAllocate(buf->Length * 2)) == NULL) 24026d63101aSMike Smith return (AE_NO_MEMORY); 24036d63101aSMike Smith bcopy(buf->Pointer, newp, buf->Length); 2404a692219dSMike Smith rp = (ACPI_RESOURCE *)((u_int8_t *)newp + 2405a692219dSMike Smith ((u_int8_t *)rp - (u_int8_t *)buf->Pointer)); 24066d63101aSMike Smith AcpiOsFree(buf->Pointer); 24076d63101aSMike Smith buf->Pointer = newp; 24086d63101aSMike Smith buf->Length += buf->Length; 24096d63101aSMike Smith } 24106d63101aSMike Smith 2411be2b1797SNate Lawson /* Insert the new resource. */ 2412e8d472a7SJung-uk Kim bcopy(res, rp, res->Length + ACPI_RS_SIZE_NO_DATA); 24136d63101aSMike Smith 2414be2b1797SNate Lawson /* And add the terminator. */ 2415abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 2416e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 241760d306f0SJohn Baldwin rp->Length = ACPI_RS_SIZE_MIN; 24186d63101aSMike Smith 24196f69255bSMike Smith return (AE_OK); 24206f69255bSMike Smith } 2421c5ba0be4SMike Smith 2422da14ac9fSJohn Baldwin /* 2423da14ac9fSJohn Baldwin * Set interrupt model. 2424da14ac9fSJohn Baldwin */ 2425da14ac9fSJohn Baldwin ACPI_STATUS 2426da14ac9fSJohn Baldwin acpi_SetIntrModel(int model) 2427da14ac9fSJohn Baldwin { 2428da14ac9fSJohn Baldwin 2429c310653eSNate Lawson return (acpi_SetInteger(ACPI_ROOT_OBJECT, "_PIC", model)); 2430da14ac9fSJohn Baldwin } 2431da14ac9fSJohn Baldwin 243200a30448SNate Lawson /* 2433d95e7f5aSJohn Baldwin * Walk subtables of a table and call a callback routine for each 2434d95e7f5aSJohn Baldwin * subtable. The caller should provide the first subtable and a 2435d95e7f5aSJohn Baldwin * pointer to the end of the table. This can be used to walk tables 2436d95e7f5aSJohn Baldwin * such as MADT and SRAT that use subtable entries. 2437d95e7f5aSJohn Baldwin */ 2438d95e7f5aSJohn Baldwin void 2439d95e7f5aSJohn Baldwin acpi_walk_subtables(void *first, void *end, acpi_subtable_handler *handler, 2440d95e7f5aSJohn Baldwin void *arg) 2441d95e7f5aSJohn Baldwin { 2442d95e7f5aSJohn Baldwin ACPI_SUBTABLE_HEADER *entry; 2443d95e7f5aSJohn Baldwin 2444d95e7f5aSJohn Baldwin for (entry = first; (void *)entry < end; ) { 2445d95e7f5aSJohn Baldwin /* Avoid an infinite loop if we hit a bogus entry. */ 2446d95e7f5aSJohn Baldwin if (entry->Length < sizeof(ACPI_SUBTABLE_HEADER)) 2447d95e7f5aSJohn Baldwin return; 2448d95e7f5aSJohn Baldwin 2449d95e7f5aSJohn Baldwin handler(entry, arg); 2450d95e7f5aSJohn Baldwin entry = ACPI_ADD_PTR(ACPI_SUBTABLE_HEADER, entry, entry->Length); 2451d95e7f5aSJohn Baldwin } 2452d95e7f5aSJohn Baldwin } 2453d95e7f5aSJohn Baldwin 2454d95e7f5aSJohn Baldwin /* 245500a30448SNate Lawson * DEPRECATED. This interface has serious deficiencies and will be 245600a30448SNate Lawson * removed. 245700a30448SNate Lawson * 245800a30448SNate Lawson * Immediately enter the sleep state. In the old model, acpiconf(8) ran 245900a30448SNate Lawson * rc.suspend and rc.resume so we don't have to notify devd(8) to do this. 246000a30448SNate Lawson */ 246100a30448SNate Lawson ACPI_STATUS 246200a30448SNate Lawson acpi_SetSleepState(struct acpi_softc *sc, int state) 246300a30448SNate Lawson { 246400a30448SNate Lawson static int once; 246500a30448SNate Lawson 246600a30448SNate Lawson if (!once) { 24672d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 246800a30448SNate Lawson "warning: acpi_SetSleepState() deprecated, need to update your software\n"); 246900a30448SNate Lawson once = 1; 247000a30448SNate Lawson } 247100a30448SNate Lawson return (acpi_EnterSleepState(sc, state)); 247200a30448SNate Lawson } 247300a30448SNate Lawson 2474c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 247500a30448SNate Lawson static void 2476ffe3f1f8SMitsuru IWASAKI acpi_sleep_force_task(void *context) 2477ffe3f1f8SMitsuru IWASAKI { 2478ffe3f1f8SMitsuru IWASAKI struct acpi_softc *sc = (struct acpi_softc *)context; 2479ffe3f1f8SMitsuru IWASAKI 2480ffe3f1f8SMitsuru IWASAKI if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 2481ffe3f1f8SMitsuru IWASAKI device_printf(sc->acpi_dev, "force sleep state S%d failed\n", 2482ffe3f1f8SMitsuru IWASAKI sc->acpi_next_sstate); 2483ffe3f1f8SMitsuru IWASAKI } 2484ffe3f1f8SMitsuru IWASAKI 2485ffe3f1f8SMitsuru IWASAKI static void 248600a30448SNate Lawson acpi_sleep_force(void *arg) 248700a30448SNate Lawson { 24882d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 248900a30448SNate Lawson 24902d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 24912d0c82e8SJung-uk Kim "suspend request timed out, forcing sleep now\n"); 2492ffe3f1f8SMitsuru IWASAKI /* 2493ffe3f1f8SMitsuru IWASAKI * XXX Suspending from callout cause the freeze in DEVICE_SUSPEND(). 2494ffe3f1f8SMitsuru IWASAKI * Suspend from acpi_task thread in stead. 2495ffe3f1f8SMitsuru IWASAKI */ 2496ffe3f1f8SMitsuru IWASAKI if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 2497ffe3f1f8SMitsuru IWASAKI acpi_sleep_force_task, sc))) 2498ffe3f1f8SMitsuru IWASAKI device_printf(sc->acpi_dev, "AcpiOsExecute() for sleeping failed\n"); 249900a30448SNate Lawson } 2500c66d2b38SJung-uk Kim #endif 250100a30448SNate Lawson 250200a30448SNate Lawson /* 250300a30448SNate Lawson * Request that the system enter the given suspend state. All /dev/apm 250400a30448SNate Lawson * devices and devd(8) will be notified. Userland then has a chance to 250500a30448SNate Lawson * save state and acknowledge the request. The system sleeps once all 250600a30448SNate Lawson * acks are in. 250700a30448SNate Lawson */ 250800a30448SNate Lawson int 250900a30448SNate Lawson acpi_ReqSleepState(struct acpi_softc *sc, int state) 251000a30448SNate Lawson { 251171f99e63SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 251200a30448SNate Lawson struct apm_clone_data *clone; 2513337744d9SJung-uk Kim ACPI_STATUS status; 251400a30448SNate Lawson 2515a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 251600a30448SNate Lawson return (EINVAL); 2517a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 2518a0e73a12SJung-uk Kim return (EOPNOTSUPP); 251900a30448SNate Lawson 2520b12bc99fSMitsuru IWASAKI /* If a suspend request is already in progress, just return. */ 2521b12bc99fSMitsuru IWASAKI if (sc->acpi_next_sstate != 0) { 2522b12bc99fSMitsuru IWASAKI return (0); 2523b12bc99fSMitsuru IWASAKI } 2524b12bc99fSMitsuru IWASAKI 2525f22377a8SMitsuru IWASAKI /* Wait until sleep is enabled. */ 2526f22377a8SMitsuru IWASAKI while (sc->acpi_sleep_disabled) { 2527f22377a8SMitsuru IWASAKI AcpiOsSleep(1000); 2528f22377a8SMitsuru IWASAKI } 2529f22377a8SMitsuru IWASAKI 2530337744d9SJung-uk Kim ACPI_LOCK(acpi); 253100a30448SNate Lawson 2532f22377a8SMitsuru IWASAKI sc->acpi_next_sstate = state; 253300a30448SNate Lawson 2534337744d9SJung-uk Kim /* S5 (soft-off) should be entered directly with no waiting. */ 2535337744d9SJung-uk Kim if (state == ACPI_STATE_S5) { 2536337744d9SJung-uk Kim ACPI_UNLOCK(acpi); 2537337744d9SJung-uk Kim status = acpi_EnterSleepState(sc, state); 2538337744d9SJung-uk Kim return (ACPI_SUCCESS(status) ? 0 : ENXIO); 2539337744d9SJung-uk Kim } 2540337744d9SJung-uk Kim 254100a30448SNate Lawson /* Record the pending state and notify all apm devices. */ 254200a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 254300a30448SNate Lawson clone->notify_status = APM_EV_NONE; 254400a30448SNate Lawson if ((clone->flags & ACPI_EVF_DEVD) == 0) { 254500a30448SNate Lawson selwakeuppri(&clone->sel_read, PZERO); 2546374d9c4dSJohn Baldwin KNOTE_LOCKED(&clone->sel_read.si_note, 0); 254700a30448SNate Lawson } 254800a30448SNate Lawson } 254900a30448SNate Lawson 25500c26519eSMitsuru IWASAKI /* If devd(8) is not running, immediately enter the sleep state. */ 2551d42f0ad8SJung-uk Kim if (!devctl_process_running()) { 25520c26519eSMitsuru IWASAKI ACPI_UNLOCK(acpi); 2553337744d9SJung-uk Kim status = acpi_EnterSleepState(sc, state); 2554337744d9SJung-uk Kim return (ACPI_SUCCESS(status) ? 0 : ENXIO); 25550c26519eSMitsuru IWASAKI } 25560c26519eSMitsuru IWASAKI 255700a30448SNate Lawson /* 255800a30448SNate Lawson * Set a timeout to fire if userland doesn't ack the suspend request 255900a30448SNate Lawson * in time. This way we still eventually go to sleep if we were 256000a30448SNate Lawson * overheating or running low on battery, even if userland is hung. 256100a30448SNate Lawson * We cancel this timeout once all userland acks are in or the 256200a30448SNate Lawson * suspend request is aborted. 256300a30448SNate Lawson */ 256400a30448SNate Lawson callout_reset(&sc->susp_force_to, 10 * hz, acpi_sleep_force, sc); 256500a30448SNate Lawson ACPI_UNLOCK(acpi); 2566d42f0ad8SJung-uk Kim 2567d42f0ad8SJung-uk Kim /* Now notify devd(8) also. */ 2568d42f0ad8SJung-uk Kim acpi_UserNotify("Suspend", ACPI_ROOT_OBJECT, state); 2569d42f0ad8SJung-uk Kim 257000a30448SNate Lawson return (0); 2571c66d2b38SJung-uk Kim #else 2572c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2573c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2574c66d2b38SJung-uk Kim #endif 257500a30448SNate Lawson } 257600a30448SNate Lawson 257700a30448SNate Lawson /* 257800a30448SNate Lawson * Acknowledge (or reject) a pending sleep state. The caller has 257900a30448SNate Lawson * prepared for suspend and is now ready for it to proceed. If the 258000a30448SNate Lawson * error argument is non-zero, it indicates suspend should be cancelled 258100a30448SNate Lawson * and gives an errno value describing why. Once all votes are in, 258200a30448SNate Lawson * we suspend the system. 258300a30448SNate Lawson */ 258400a30448SNate Lawson int 258500a30448SNate Lawson acpi_AckSleepState(struct apm_clone_data *clone, int error) 258600a30448SNate Lawson { 2587c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 258800a30448SNate Lawson struct acpi_softc *sc; 258900a30448SNate Lawson int ret, sleeping; 259000a30448SNate Lawson 259100a30448SNate Lawson /* If no pending sleep state, return an error. */ 259200a30448SNate Lawson ACPI_LOCK(acpi); 259300a30448SNate Lawson sc = clone->acpi_sc; 259400a30448SNate Lawson if (sc->acpi_next_sstate == 0) { 259500a30448SNate Lawson ACPI_UNLOCK(acpi); 259600a30448SNate Lawson return (ENXIO); 259700a30448SNate Lawson } 259800a30448SNate Lawson 259900a30448SNate Lawson /* Caller wants to abort suspend process. */ 260000a30448SNate Lawson if (error) { 260100a30448SNate Lawson sc->acpi_next_sstate = 0; 260200a30448SNate Lawson callout_stop(&sc->susp_force_to); 26032d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 26042d0c82e8SJung-uk Kim "listener on %s cancelled the pending suspend\n", 260500a30448SNate Lawson devtoname(clone->cdev)); 260600a30448SNate Lawson ACPI_UNLOCK(acpi); 260700a30448SNate Lawson return (0); 260800a30448SNate Lawson } 260900a30448SNate Lawson 261000a30448SNate Lawson /* 261100a30448SNate Lawson * Mark this device as acking the suspend request. Then, walk through 261200a30448SNate Lawson * all devices, seeing if they agree yet. We only count devices that 261300a30448SNate Lawson * are writable since read-only devices couldn't ack the request. 261400a30448SNate Lawson */ 261500a30448SNate Lawson sleeping = TRUE; 2616c66d2b38SJung-uk Kim clone->notify_status = APM_EV_ACKED; 261700a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 261800a30448SNate Lawson if ((clone->flags & ACPI_EVF_WRITE) != 0 && 261900a30448SNate Lawson clone->notify_status != APM_EV_ACKED) { 262000a30448SNate Lawson sleeping = FALSE; 262100a30448SNate Lawson break; 262200a30448SNate Lawson } 262300a30448SNate Lawson } 262400a30448SNate Lawson 262500a30448SNate Lawson /* If all devices have voted "yes", we will suspend now. */ 262600a30448SNate Lawson if (sleeping) 262700a30448SNate Lawson callout_stop(&sc->susp_force_to); 262800a30448SNate Lawson ACPI_UNLOCK(acpi); 262900a30448SNate Lawson ret = 0; 263000a30448SNate Lawson if (sleeping) { 263100a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 263200a30448SNate Lawson ret = ENODEV; 263300a30448SNate Lawson } 263400a30448SNate Lawson return (ret); 2635c66d2b38SJung-uk Kim #else 2636c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2637c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2638c66d2b38SJung-uk Kim #endif 263900a30448SNate Lawson } 264000a30448SNate Lawson 2641ece50487SMitsuru IWASAKI static void 2642ece50487SMitsuru IWASAKI acpi_sleep_enable(void *arg) 2643ece50487SMitsuru IWASAKI { 2644d42f0ad8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 2645bee4aa4aSNate Lawson 2646a0e73a12SJung-uk Kim /* Reschedule if the system is not fully up and running. */ 2647a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) { 2648a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2649a0e73a12SJung-uk Kim return; 2650a0e73a12SJung-uk Kim } 2651a0e73a12SJung-uk Kim 2652d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2653a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = FALSE; 2654d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2655d42f0ad8SJung-uk Kim } 2656d42f0ad8SJung-uk Kim 2657d42f0ad8SJung-uk Kim static ACPI_STATUS 2658d42f0ad8SJung-uk Kim acpi_sleep_disable(struct acpi_softc *sc) 2659d42f0ad8SJung-uk Kim { 2660d42f0ad8SJung-uk Kim ACPI_STATUS status; 2661d42f0ad8SJung-uk Kim 2662a0e73a12SJung-uk Kim /* Fail if the system is not fully up and running. */ 2663a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) 2664a0e73a12SJung-uk Kim return (AE_ERROR); 2665a0e73a12SJung-uk Kim 2666d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2667d42f0ad8SJung-uk Kim status = sc->acpi_sleep_disabled ? AE_ERROR : AE_OK; 2668a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 2669d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2670d42f0ad8SJung-uk Kim 2671d42f0ad8SJung-uk Kim return (status); 2672ece50487SMitsuru IWASAKI } 2673c30382dfSMitsuru IWASAKI 267415e2f34fSNate Lawson enum acpi_sleep_state { 267515e2f34fSNate Lawson ACPI_SS_NONE, 267615e2f34fSNate Lawson ACPI_SS_GPE_SET, 267715e2f34fSNate Lawson ACPI_SS_DEV_SUSPEND, 267815e2f34fSNate Lawson ACPI_SS_SLP_PREP, 267915e2f34fSNate Lawson ACPI_SS_SLEPT, 268015e2f34fSNate Lawson }; 268115e2f34fSNate Lawson 268215e32d5dSMike Smith /* 268300a30448SNate Lawson * Enter the desired system sleep state. 268415e32d5dSMike Smith * 2685be2b1797SNate Lawson * Currently we support S1-S5 but S4 is only S4BIOS 268615e32d5dSMike Smith */ 268700a30448SNate Lawson static ACPI_STATUS 268800a30448SNate Lawson acpi_EnterSleepState(struct acpi_softc *sc, int state) 268915e32d5dSMike Smith { 269071804adcSJung-uk Kim register_t intr; 269115e2f34fSNate Lawson ACPI_STATUS status; 2692b913a7d5SAndriy Gapon ACPI_EVENT_STATUS power_button_status; 269315e2f34fSNate Lawson enum acpi_sleep_state slp_state; 2694f0a101b7SMitsuru IWASAKI int sleep_result; 269515e32d5dSMike Smith 2696b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 26970ae55423SMike Smith 2698a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 269933c70d41SAndriy Gapon return_ACPI_STATUS (AE_BAD_PARAMETER); 2700a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) { 2701a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "Sleep state S%d not supported by BIOS\n", 2702a0e73a12SJung-uk Kim state); 2703a0e73a12SJung-uk Kim return (AE_SUPPORT); 2704a0e73a12SJung-uk Kim } 2705a0e73a12SJung-uk Kim 2706a0e73a12SJung-uk Kim /* Re-entry once we're suspending is not allowed. */ 2707a0e73a12SJung-uk Kim status = acpi_sleep_disable(sc); 2708a0e73a12SJung-uk Kim if (ACPI_FAILURE(status)) { 2709a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, 2710a0e73a12SJung-uk Kim "suspend request ignored (not ready yet)\n"); 2711a0e73a12SJung-uk Kim return (status); 2712a0e73a12SJung-uk Kim } 271333c70d41SAndriy Gapon 271433c70d41SAndriy Gapon if (state == ACPI_STATE_S5) { 271533c70d41SAndriy Gapon /* 271633c70d41SAndriy Gapon * Shut down cleanly and power off. This will call us back through the 271733c70d41SAndriy Gapon * shutdown handlers. 271833c70d41SAndriy Gapon */ 271933c70d41SAndriy Gapon shutdown_nice(RB_POWEROFF); 272033c70d41SAndriy Gapon return_ACPI_STATUS (AE_OK); 272133c70d41SAndriy Gapon } 272233c70d41SAndriy Gapon 27234a8fa6feSJung-uk Kim EVENTHANDLER_INVOKE(power_suspend); 27244a8fa6feSJung-uk Kim 272536a483bbSJung-uk Kim if (smp_started) { 2726c66d2b38SJung-uk Kim thread_lock(curthread); 2727c66d2b38SJung-uk Kim sched_bind(curthread, 0); 2728c66d2b38SJung-uk Kim thread_unlock(curthread); 272936a483bbSJung-uk Kim } 2730c66d2b38SJung-uk Kim 2731a56fe095SJohn Baldwin /* 2732a56fe095SJohn Baldwin * Be sure to hold Giant across DEVICE_SUSPEND/RESUME since non-MPSAFE 2733a56fe095SJohn Baldwin * drivers need this. 2734a56fe095SJohn Baldwin */ 2735a56fe095SJohn Baldwin mtx_lock(&Giant); 2736c66d2b38SJung-uk Kim 273715e2f34fSNate Lawson slp_state = ACPI_SS_NONE; 273856d8cb57SMitsuru IWASAKI 2739a1fccb47SMitsuru IWASAKI sc->acpi_sstate = state; 2740a1fccb47SMitsuru IWASAKI 2741d4b9ff91SNate Lawson /* Enable any GPEs as appropriate and requested by the user. */ 2742d4b9ff91SNate Lawson acpi_wake_prep_walk(state); 274315e2f34fSNate Lawson slp_state = ACPI_SS_GPE_SET; 2744e8b4d56eSNate Lawson 274515e32d5dSMike Smith /* 2746c7f88fc3SNate Lawson * Inform all devices that we are going to sleep. If at least one 2747c7f88fc3SNate Lawson * device fails, DEVICE_SUSPEND() automatically resumes the tree. 274815e32d5dSMike Smith * 2749c7f88fc3SNate Lawson * XXX Note that a better two-pass approach with a 'veto' pass 2750c7f88fc3SNate Lawson * followed by a "real thing" pass would be better, but the current 2751c7f88fc3SNate Lawson * bus interface does not provide for this. 275215e32d5dSMike Smith */ 275315e2f34fSNate Lawson if (DEVICE_SUSPEND(root_bus) != 0) { 275415e2f34fSNate Lawson device_printf(sc->acpi_dev, "device_suspend failed\n"); 275533c70d41SAndriy Gapon goto backout; 275615e2f34fSNate Lawson } 275715e2f34fSNate Lawson slp_state = ACPI_SS_DEV_SUSPEND; 2758b9c780d6SMitsuru IWASAKI 275993bfd059SNate Lawson /* If testing device suspend only, back out of everything here. */ 276093bfd059SNate Lawson if (acpi_susp_bounce) 276133c70d41SAndriy Gapon goto backout; 276293bfd059SNate Lawson 2763be2b1797SNate Lawson status = AcpiEnterSleepStatePrep(state); 2764be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2765b9c780d6SMitsuru IWASAKI device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 2766b9c780d6SMitsuru IWASAKI AcpiFormatException(status)); 276733c70d41SAndriy Gapon goto backout; 2768b9c780d6SMitsuru IWASAKI } 276915e2f34fSNate Lawson slp_state = ACPI_SS_SLP_PREP; 2770b9c780d6SMitsuru IWASAKI 2771be2b1797SNate Lawson if (sc->acpi_sleep_delay > 0) 2772ff01efb5SMitsuru IWASAKI DELAY(sc->acpi_sleep_delay * 1000000); 2773ff01efb5SMitsuru IWASAKI 2774f0a101b7SMitsuru IWASAKI intr = intr_disable(); 27754d46ef51SJung-uk Kim if (state != ACPI_STATE_S1) { 2776f0a101b7SMitsuru IWASAKI sleep_result = acpi_sleep_machdep(sc, state); 2777f0a101b7SMitsuru IWASAKI acpi_wakeup_machdep(sc, state, sleep_result, 0); 2778b1a5c017SAndriy Gapon 2779b1a5c017SAndriy Gapon /* 2780b1a5c017SAndriy Gapon * XXX According to ACPI specification SCI_EN bit should be restored 2781b1a5c017SAndriy Gapon * by ACPI platform (BIOS, firmware) to its pre-sleep state. 2782b1a5c017SAndriy Gapon * Unfortunately some BIOSes fail to do that and that leads to 2783b1a5c017SAndriy Gapon * unexpected and serious consequences during wake up like a system 2784b1a5c017SAndriy Gapon * getting stuck in SMI handlers. 2785b1a5c017SAndriy Gapon * This hack is picked up from Linux, which claims that it follows 2786b1a5c017SAndriy Gapon * Windows behavior. 2787b1a5c017SAndriy Gapon */ 2788b1a5c017SAndriy Gapon if (sleep_result == 1 && state != ACPI_STATE_S4) 2789b1a5c017SAndriy Gapon AcpiWriteBitRegister(ACPI_BITREG_SCI_ENABLE, ACPI_ENABLE_EVENT); 2790b1a5c017SAndriy Gapon 27911df130f1SJung-uk Kim AcpiLeaveSleepStatePrep(state); 2792b913a7d5SAndriy Gapon 2793b913a7d5SAndriy Gapon if (sleep_result == 1 && state == ACPI_STATE_S3) { 2794b913a7d5SAndriy Gapon /* 2795b913a7d5SAndriy Gapon * Prevent mis-interpretation of the wakeup by power button 2796b913a7d5SAndriy Gapon * as a request for power off. 2797b913a7d5SAndriy Gapon * Ideally we should post an appropriate wakeup event, 2798b913a7d5SAndriy Gapon * perhaps using acpi_event_power_button_wake or alike. 2799b913a7d5SAndriy Gapon * 2800b913a7d5SAndriy Gapon * Clearing of power button status after wakeup is mandated 2801b913a7d5SAndriy Gapon * by ACPI specification in section "Fixed Power Button". 2802b913a7d5SAndriy Gapon * 2803b913a7d5SAndriy Gapon * XXX As of ACPICA 20121114 AcpiGetEventStatus provides 2804b913a7d5SAndriy Gapon * status as 0/1 corressponding to inactive/active despite 2805b913a7d5SAndriy Gapon * its type being ACPI_EVENT_STATUS. In other words, 2806b913a7d5SAndriy Gapon * we should not test for ACPI_EVENT_FLAG_SET for time being. 2807b913a7d5SAndriy Gapon */ 2808b913a7d5SAndriy Gapon if (ACPI_SUCCESS(AcpiGetEventStatus(ACPI_EVENT_POWER_BUTTON, 2809b913a7d5SAndriy Gapon &power_button_status)) && power_button_status != 0) { 2810b913a7d5SAndriy Gapon AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 2811b913a7d5SAndriy Gapon device_printf(sc->acpi_dev, 2812b913a7d5SAndriy Gapon "cleared fixed power button status\n"); 2813b913a7d5SAndriy Gapon } 2814b913a7d5SAndriy Gapon } 2815b913a7d5SAndriy Gapon 2816f0a101b7SMitsuru IWASAKI intr_restore(intr); 2817f0a101b7SMitsuru IWASAKI 2818f0a101b7SMitsuru IWASAKI /* call acpi_wakeup_machdep() again with interrupt enabled */ 2819f0a101b7SMitsuru IWASAKI acpi_wakeup_machdep(sc, state, sleep_result, 1); 2820f0a101b7SMitsuru IWASAKI 2821f0a101b7SMitsuru IWASAKI if (sleep_result == -1) 2822a159c266SJung-uk Kim goto backout; 28236161544cSTakanori Watanabe 28246161544cSTakanori Watanabe /* Re-enable ACPI hardware on wakeup from sleep state 4. */ 2825be2b1797SNate Lawson if (state == ACPI_STATE_S4) 2826964679ceSMitsuru IWASAKI AcpiEnable(); 28276161544cSTakanori Watanabe } else { 28281df130f1SJung-uk Kim status = AcpiEnterSleepState(state); 28291df130f1SJung-uk Kim AcpiLeaveSleepStatePrep(state); 283071804adcSJung-uk Kim intr_restore(intr); 2831be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2832be2b1797SNate Lawson device_printf(sc->acpi_dev, "AcpiEnterSleepState failed - %s\n", 2833be2b1797SNate Lawson AcpiFormatException(status)); 283433c70d41SAndriy Gapon goto backout; 283515e32d5dSMike Smith } 28366161544cSTakanori Watanabe } 283715e2f34fSNate Lawson slp_state = ACPI_SS_SLEPT; 2838ece50487SMitsuru IWASAKI 283915e2f34fSNate Lawson /* 284015e2f34fSNate Lawson * Back out state according to how far along we got in the suspend 284115e2f34fSNate Lawson * process. This handles both the error and success cases. 284215e2f34fSNate Lawson */ 284333c70d41SAndriy Gapon backout: 284415e2f34fSNate Lawson if (slp_state >= ACPI_SS_GPE_SET) { 284515e2f34fSNate Lawson acpi_wake_prep_walk(state); 284615e2f34fSNate Lawson sc->acpi_sstate = ACPI_STATE_S0; 284715e2f34fSNate Lawson } 2848e3b56b66SMitsuru IWASAKI if (slp_state >= ACPI_SS_DEV_SUSPEND) 2849e3b56b66SMitsuru IWASAKI DEVICE_RESUME(root_bus); 2850f0a101b7SMitsuru IWASAKI if (slp_state >= ACPI_SS_SLP_PREP) 285115e2f34fSNate Lawson AcpiLeaveSleepState(state); 2852a0a15716SJung-uk Kim if (slp_state >= ACPI_SS_SLEPT) { 2853a0a15716SJung-uk Kim acpi_resync_clock(sc); 285415e2f34fSNate Lawson acpi_enable_fixed_events(sc); 2855a0a15716SJung-uk Kim } 2856337744d9SJung-uk Kim sc->acpi_next_sstate = 0; 285715e2f34fSNate Lawson 2858a56fe095SJohn Baldwin mtx_unlock(&Giant); 2859c66d2b38SJung-uk Kim 286036a483bbSJung-uk Kim if (smp_started) { 2861c66d2b38SJung-uk Kim thread_lock(curthread); 2862c66d2b38SJung-uk Kim sched_unbind(curthread); 2863c66d2b38SJung-uk Kim thread_unlock(curthread); 286436a483bbSJung-uk Kim } 2865c66d2b38SJung-uk Kim 28664a8fa6feSJung-uk Kim EVENTHANDLER_INVOKE(power_resume); 28674a8fa6feSJung-uk Kim 2868d42f0ad8SJung-uk Kim /* Allow another sleep request after a while. */ 2869d42f0ad8SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2870d42f0ad8SJung-uk Kim 2871d42f0ad8SJung-uk Kim /* Run /etc/rc.resume after we are back. */ 2872d42f0ad8SJung-uk Kim if (devctl_process_running()) 2873d42f0ad8SJung-uk Kim acpi_UserNotify("Resume", ACPI_ROOT_OBJECT, state); 2874d42f0ad8SJung-uk Kim 28750ae55423SMike Smith return_ACPI_STATUS (status); 287615e32d5dSMike Smith } 287715e32d5dSMike Smith 2878a0a15716SJung-uk Kim static void 28790755473bSJung-uk Kim acpi_resync_clock(struct acpi_softc *sc) 28800755473bSJung-uk Kim { 2881ebbed20dSAndriy Gapon #ifdef __amd64__ 28820755473bSJung-uk Kim if (!acpi_reset_clock) 28830755473bSJung-uk Kim return; 28840755473bSJung-uk Kim 28850755473bSJung-uk Kim /* 28860755473bSJung-uk Kim * Warm up timecounter again and reset system clock. 28870755473bSJung-uk Kim */ 28880755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 28890755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 28900755473bSJung-uk Kim inittodr(time_second + sc->acpi_sleep_delay); 2891a0a15716SJung-uk Kim #endif 28920755473bSJung-uk Kim } 28930755473bSJung-uk Kim 2894e8b4d56eSNate Lawson /* Enable or disable the device's wake GPE. */ 2895e8b4d56eSNate Lawson int 2896e8b4d56eSNate Lawson acpi_wake_set_enable(device_t dev, int enable) 2897e8b4d56eSNate Lawson { 2898e8b4d56eSNate Lawson struct acpi_prw_data prw; 2899e8b4d56eSNate Lawson ACPI_STATUS status; 2900e8b4d56eSNate Lawson int flags; 2901e8b4d56eSNate Lawson 2902d4b9ff91SNate Lawson /* Make sure the device supports waking the system and get the GPE. */ 29032be4e471SJung-uk Kim if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0) 2904e8b4d56eSNate Lawson return (ENXIO); 2905e8b4d56eSNate Lawson 2906d4b9ff91SNate Lawson flags = acpi_get_flags(dev); 2907e8b4d56eSNate Lawson if (enable) { 29085a77b11bSJung-uk Kim status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, 29095a77b11bSJung-uk Kim ACPI_GPE_ENABLE); 2910e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2911e8b4d56eSNate Lawson device_printf(dev, "enable wake failed\n"); 2912e8b4d56eSNate Lawson return (ENXIO); 2913e8b4d56eSNate Lawson } 2914d4b9ff91SNate Lawson acpi_set_flags(dev, flags | ACPI_FLAG_WAKE_ENABLED); 2915e8b4d56eSNate Lawson } else { 29165a77b11bSJung-uk Kim status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, 29175a77b11bSJung-uk Kim ACPI_GPE_DISABLE); 2918e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2919e8b4d56eSNate Lawson device_printf(dev, "disable wake failed\n"); 2920e8b4d56eSNate Lawson return (ENXIO); 2921e8b4d56eSNate Lawson } 2922d4b9ff91SNate Lawson acpi_set_flags(dev, flags & ~ACPI_FLAG_WAKE_ENABLED); 2923e8b4d56eSNate Lawson } 2924e8b4d56eSNate Lawson 2925e8b4d56eSNate Lawson return (0); 2926e8b4d56eSNate Lawson } 2927e8b4d56eSNate Lawson 2928d4b9ff91SNate Lawson static int 2929d4b9ff91SNate Lawson acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate) 2930e8b4d56eSNate Lawson { 2931e8b4d56eSNate Lawson struct acpi_prw_data prw; 2932d4b9ff91SNate Lawson device_t dev; 2933e8b4d56eSNate Lawson 2934d4b9ff91SNate Lawson /* Check that this is a wake-capable device and get its GPE. */ 2935e8b4d56eSNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2936e8b4d56eSNate Lawson return (ENXIO); 2937d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2938e8b4d56eSNate Lawson 2939e8b4d56eSNate Lawson /* 2940d4b9ff91SNate Lawson * The destination sleep state must be less than (i.e., higher power) 2941d4b9ff91SNate Lawson * or equal to the value specified by _PRW. If this GPE cannot be 2942d4b9ff91SNate Lawson * enabled for the next sleep state, then disable it. If it can and 2943d4b9ff91SNate Lawson * the user requested it be enabled, turn on any required power resources 2944d4b9ff91SNate Lawson * and set _PSW. 2945e8b4d56eSNate Lawson */ 2946d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 29475a77b11bSJung-uk Kim AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_DISABLE); 2948e8b4d56eSNate Lawson if (bootverbose) 2949d4b9ff91SNate Lawson device_printf(dev, "wake_prep disabled wake for %s (S%d)\n", 2950d4b9ff91SNate Lawson acpi_name(handle), sstate); 2951d4b9ff91SNate Lawson } else if (dev && (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) != 0) { 2952d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 1); 2953d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 1); 2954d4b9ff91SNate Lawson if (bootverbose) 2955d4b9ff91SNate Lawson device_printf(dev, "wake_prep enabled for %s (S%d)\n", 2956d4b9ff91SNate Lawson acpi_name(handle), sstate); 2957d4b9ff91SNate Lawson } 2958cc85c78cSNate Lawson 2959cc85c78cSNate Lawson return (0); 2960e8b4d56eSNate Lawson } 2961e8b4d56eSNate Lawson 2962d4b9ff91SNate Lawson static int 2963d4b9ff91SNate Lawson acpi_wake_run_prep(ACPI_HANDLE handle, int sstate) 2964cc85c78cSNate Lawson { 2965cc85c78cSNate Lawson struct acpi_prw_data prw; 2966d4b9ff91SNate Lawson device_t dev; 2967cc85c78cSNate Lawson 2968cc85c78cSNate Lawson /* 2969d4b9ff91SNate Lawson * Check that this is a wake-capable device and get its GPE. Return 2970d4b9ff91SNate Lawson * now if the user didn't enable this device for wake. 2971cc85c78cSNate Lawson */ 2972d4b9ff91SNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2973d4b9ff91SNate Lawson return (ENXIO); 2974d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2975d4b9ff91SNate Lawson if (dev == NULL || (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) == 0) 2976d4b9ff91SNate Lawson return (0); 2977cc85c78cSNate Lawson 2978d4b9ff91SNate Lawson /* 2979d4b9ff91SNate Lawson * If this GPE couldn't be enabled for the previous sleep state, it was 2980d4b9ff91SNate Lawson * disabled before going to sleep so re-enable it. If it was enabled, 2981d4b9ff91SNate Lawson * clear _PSW and turn off any power resources it used. 2982d4b9ff91SNate Lawson */ 2983d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 29845a77b11bSJung-uk Kim AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_ENABLE); 2985d4b9ff91SNate Lawson if (bootverbose) 2986d4b9ff91SNate Lawson device_printf(dev, "run_prep re-enabled %s\n", acpi_name(handle)); 2987d4b9ff91SNate Lawson } else { 2988d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 0); 2989d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 0); 2990d4b9ff91SNate Lawson if (bootverbose) 2991d4b9ff91SNate Lawson device_printf(dev, "run_prep cleaned up for %s\n", 2992d4b9ff91SNate Lawson acpi_name(handle)); 2993d4b9ff91SNate Lawson } 2994d4b9ff91SNate Lawson 2995e8b4d56eSNate Lawson return (0); 2996e8b4d56eSNate Lawson } 2997e8b4d56eSNate Lawson 2998e8b4d56eSNate Lawson static ACPI_STATUS 2999d4b9ff91SNate Lawson acpi_wake_prep(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 3000e8b4d56eSNate Lawson { 3001d4b9ff91SNate Lawson int sstate; 3002e8b4d56eSNate Lawson 3003d4b9ff91SNate Lawson /* If suspending, run the sleep prep function, otherwise wake. */ 3004d4b9ff91SNate Lawson sstate = *(int *)context; 3005d4b9ff91SNate Lawson if (AcpiGbl_SystemAwakeAndRunning) 3006d4b9ff91SNate Lawson acpi_wake_sleep_prep(handle, sstate); 3007d4b9ff91SNate Lawson else 3008d4b9ff91SNate Lawson acpi_wake_run_prep(handle, sstate); 3009e8b4d56eSNate Lawson return (AE_OK); 3010e8b4d56eSNate Lawson } 3011e8b4d56eSNate Lawson 3012d4b9ff91SNate Lawson /* Walk the tree rooted at acpi0 to prep devices for suspend/resume. */ 3013e8b4d56eSNate Lawson static int 3014d4b9ff91SNate Lawson acpi_wake_prep_walk(int sstate) 3015e8b4d56eSNate Lawson { 3016e8b4d56eSNate Lawson ACPI_HANDLE sb_handle; 3017e8b4d56eSNate Lawson 3018e8b4d56eSNate Lawson if (ACPI_SUCCESS(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sb_handle))) 3019d4b9ff91SNate Lawson AcpiWalkNamespace(ACPI_TYPE_DEVICE, sb_handle, 100, 30202272d050SJung-uk Kim acpi_wake_prep, NULL, &sstate, NULL); 3021e8b4d56eSNate Lawson return (0); 3022e8b4d56eSNate Lawson } 3023e8b4d56eSNate Lawson 302488a79fc0SNate Lawson /* Walk the tree rooted at acpi0 to attach per-device wake sysctls. */ 302588a79fc0SNate Lawson static int 302688a79fc0SNate Lawson acpi_wake_sysctl_walk(device_t dev) 302788a79fc0SNate Lawson { 302888a79fc0SNate Lawson int error, i, numdevs; 302988a79fc0SNate Lawson device_t *devlist; 303088a79fc0SNate Lawson device_t child; 3031d4b9ff91SNate Lawson ACPI_STATUS status; 303288a79fc0SNate Lawson 303388a79fc0SNate Lawson error = device_get_children(dev, &devlist, &numdevs); 30341c9ec538SNate Lawson if (error != 0 || numdevs == 0) { 30351c9ec538SNate Lawson if (numdevs == 0) 30361c9ec538SNate Lawson free(devlist, M_TEMP); 303788a79fc0SNate Lawson return (error); 30381c9ec538SNate Lawson } 303988a79fc0SNate Lawson for (i = 0; i < numdevs; i++) { 304088a79fc0SNate Lawson child = devlist[i]; 3041d4b9ff91SNate Lawson acpi_wake_sysctl_walk(child); 304288a79fc0SNate Lawson if (!device_is_attached(child)) 304388a79fc0SNate Lawson continue; 3044d4b9ff91SNate Lawson status = AcpiEvaluateObject(acpi_get_handle(child), "_PRW", NULL, NULL); 3045d4b9ff91SNate Lawson if (ACPI_SUCCESS(status)) { 304688a79fc0SNate Lawson SYSCTL_ADD_PROC(device_get_sysctl_ctx(child), 304788a79fc0SNate Lawson SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO, 304888a79fc0SNate Lawson "wake", CTLTYPE_INT | CTLFLAG_RW, child, 0, 304988a79fc0SNate Lawson acpi_wake_set_sysctl, "I", "Device set to wake the system"); 305088a79fc0SNate Lawson } 305188a79fc0SNate Lawson } 305288a79fc0SNate Lawson free(devlist, M_TEMP); 305388a79fc0SNate Lawson 305488a79fc0SNate Lawson return (0); 305588a79fc0SNate Lawson } 305688a79fc0SNate Lawson 305788a79fc0SNate Lawson /* Enable or disable wake from userland. */ 305888a79fc0SNate Lawson static int 305988a79fc0SNate Lawson acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS) 306088a79fc0SNate Lawson { 306188a79fc0SNate Lawson int enable, error; 306288a79fc0SNate Lawson device_t dev; 306388a79fc0SNate Lawson 306488a79fc0SNate Lawson dev = (device_t)arg1; 3065d4b9ff91SNate Lawson enable = (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) ? 1 : 0; 306688a79fc0SNate Lawson 306788a79fc0SNate Lawson error = sysctl_handle_int(oidp, &enable, 0, req); 306888a79fc0SNate Lawson if (error != 0 || req->newptr == NULL) 306988a79fc0SNate Lawson return (error); 307088a79fc0SNate Lawson if (enable != 0 && enable != 1) 307188a79fc0SNate Lawson return (EINVAL); 307288a79fc0SNate Lawson 307388a79fc0SNate Lawson return (acpi_wake_set_enable(dev, enable)); 307488a79fc0SNate Lawson } 307588a79fc0SNate Lawson 3076e8b4d56eSNate Lawson /* Parse a device's _PRW into a structure. */ 3077d4b9ff91SNate Lawson int 3078e8b4d56eSNate Lawson acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw) 3079e8b4d56eSNate Lawson { 3080e8b4d56eSNate Lawson ACPI_STATUS status; 3081e8b4d56eSNate Lawson ACPI_BUFFER prw_buffer; 3082e8b4d56eSNate Lawson ACPI_OBJECT *res, *res2; 3083d4b9ff91SNate Lawson int error, i, power_count; 3084e8b4d56eSNate Lawson 3085e8b4d56eSNate Lawson if (h == NULL || prw == NULL) 3086e8b4d56eSNate Lawson return (EINVAL); 3087e8b4d56eSNate Lawson 3088e8b4d56eSNate Lawson /* 3089e8b4d56eSNate Lawson * The _PRW object (7.2.9) is only required for devices that have the 3090e8b4d56eSNate Lawson * ability to wake the system from a sleeping state. 3091e8b4d56eSNate Lawson */ 3092e8b4d56eSNate Lawson error = EINVAL; 3093e8b4d56eSNate Lawson prw_buffer.Pointer = NULL; 3094e8b4d56eSNate Lawson prw_buffer.Length = ACPI_ALLOCATE_BUFFER; 3095e8b4d56eSNate Lawson status = AcpiEvaluateObject(h, "_PRW", NULL, &prw_buffer); 3096e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) 3097e8b4d56eSNate Lawson return (ENOENT); 3098e8b4d56eSNate Lawson res = (ACPI_OBJECT *)prw_buffer.Pointer; 3099e8b4d56eSNate Lawson if (res == NULL) 3100e8b4d56eSNate Lawson return (ENOENT); 3101e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res, 2)) 3102e8b4d56eSNate Lawson goto out; 3103e8b4d56eSNate Lawson 3104e8b4d56eSNate Lawson /* 3105e8b4d56eSNate Lawson * Element 1 of the _PRW object: 3106e8b4d56eSNate Lawson * The lowest power system sleeping state that can be entered while still 3107e8b4d56eSNate Lawson * providing wake functionality. The sleeping state being entered must 3108e8b4d56eSNate Lawson * be less than (i.e., higher power) or equal to this value. 3109e8b4d56eSNate Lawson */ 3110e8b4d56eSNate Lawson if (acpi_PkgInt32(res, 1, &prw->lowest_wake) != 0) 3111e8b4d56eSNate Lawson goto out; 3112e8b4d56eSNate Lawson 3113e8b4d56eSNate Lawson /* 3114e8b4d56eSNate Lawson * Element 0 of the _PRW object: 3115e8b4d56eSNate Lawson */ 3116e8b4d56eSNate Lawson switch (res->Package.Elements[0].Type) { 3117e8b4d56eSNate Lawson case ACPI_TYPE_INTEGER: 3118e8b4d56eSNate Lawson /* 3119e8b4d56eSNate Lawson * If the data type of this package element is numeric, then this 3120e8b4d56eSNate Lawson * _PRW package element is the bit index in the GPEx_EN, in the 3121e8b4d56eSNate Lawson * GPE blocks described in the FADT, of the enable bit that is 3122e8b4d56eSNate Lawson * enabled for the wake event. 3123e8b4d56eSNate Lawson */ 3124e8b4d56eSNate Lawson prw->gpe_handle = NULL; 3125e8b4d56eSNate Lawson prw->gpe_bit = res->Package.Elements[0].Integer.Value; 3126e8b4d56eSNate Lawson error = 0; 3127e8b4d56eSNate Lawson break; 3128e8b4d56eSNate Lawson case ACPI_TYPE_PACKAGE: 3129e8b4d56eSNate Lawson /* 3130e8b4d56eSNate Lawson * If the data type of this package element is a package, then this 3131e8b4d56eSNate Lawson * _PRW package element is itself a package containing two 3132e8b4d56eSNate Lawson * elements. The first is an object reference to the GPE Block 3133e8b4d56eSNate Lawson * device that contains the GPE that will be triggered by the wake 3134e8b4d56eSNate Lawson * event. The second element is numeric and it contains the bit 3135e8b4d56eSNate Lawson * index in the GPEx_EN, in the GPE Block referenced by the 3136e8b4d56eSNate Lawson * first element in the package, of the enable bit that is enabled for 3137e8b4d56eSNate Lawson * the wake event. 3138e8b4d56eSNate Lawson * 3139e8b4d56eSNate Lawson * For example, if this field is a package then it is of the form: 3140e8b4d56eSNate Lawson * Package() {\_SB.PCI0.ISA.GPE, 2} 3141e8b4d56eSNate Lawson */ 3142e8b4d56eSNate Lawson res2 = &res->Package.Elements[0]; 3143e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res2, 2)) 3144e8b4d56eSNate Lawson goto out; 3145e8b4d56eSNate Lawson prw->gpe_handle = acpi_GetReference(NULL, &res2->Package.Elements[0]); 3146e8b4d56eSNate Lawson if (prw->gpe_handle == NULL) 3147e8b4d56eSNate Lawson goto out; 3148e8b4d56eSNate Lawson if (acpi_PkgInt32(res2, 1, &prw->gpe_bit) != 0) 3149e8b4d56eSNate Lawson goto out; 3150e8b4d56eSNate Lawson error = 0; 3151e8b4d56eSNate Lawson break; 3152e8b4d56eSNate Lawson default: 3153e8b4d56eSNate Lawson goto out; 3154e8b4d56eSNate Lawson } 3155e8b4d56eSNate Lawson 3156d4b9ff91SNate Lawson /* Elements 2 to N of the _PRW object are power resources. */ 3157d4b9ff91SNate Lawson power_count = res->Package.Count - 2; 3158d4b9ff91SNate Lawson if (power_count > ACPI_PRW_MAX_POWERRES) { 3159d4b9ff91SNate Lawson printf("ACPI device %s has too many power resources\n", acpi_name(h)); 3160d4b9ff91SNate Lawson power_count = 0; 3161d4b9ff91SNate Lawson } 3162d4b9ff91SNate Lawson prw->power_res_count = power_count; 3163d4b9ff91SNate Lawson for (i = 0; i < power_count; i++) 3164d4b9ff91SNate Lawson prw->power_res[i] = res->Package.Elements[i]; 3165e8b4d56eSNate Lawson 3166e8b4d56eSNate Lawson out: 3167e8b4d56eSNate Lawson if (prw_buffer.Pointer != NULL) 3168e8b4d56eSNate Lawson AcpiOsFree(prw_buffer.Pointer); 3169e8b4d56eSNate Lawson return (error); 3170e8b4d56eSNate Lawson } 3171e8b4d56eSNate Lawson 317215e32d5dSMike Smith /* 317315e32d5dSMike Smith * ACPI Event Handlers 317415e32d5dSMike Smith */ 317515e32d5dSMike Smith 317615e32d5dSMike Smith /* System Event Handlers (registered by EVENTHANDLER_REGISTER) */ 317715e32d5dSMike Smith 317815e32d5dSMike Smith static void 317915e32d5dSMike Smith acpi_system_eventhandler_sleep(void *arg, int state) 318015e32d5dSMike Smith { 31812d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 318200a30448SNate Lawson int ret; 3183bee4aa4aSNate Lawson 3184b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 318515e32d5dSMike Smith 3186a0e73a12SJung-uk Kim /* Check if button action is disabled or unknown. */ 3187a0e73a12SJung-uk Kim if (state == ACPI_STATE_UNKNOWN) 3188813d6dcaSNate Lawson return; 3189813d6dcaSNate Lawson 319000a30448SNate Lawson /* Request that the system prepare to enter the given suspend state. */ 31912d0c82e8SJung-uk Kim ret = acpi_ReqSleepState(sc, state); 319200a30448SNate Lawson if (ret != 0) 31932d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 31942d0c82e8SJung-uk Kim "request to enter state S%d failed (err %d)\n", state, ret); 3195bee4aa4aSNate Lawson 31960ae55423SMike Smith return_VOID; 319715e32d5dSMike Smith } 319815e32d5dSMike Smith 319915e32d5dSMike Smith static void 320015e32d5dSMike Smith acpi_system_eventhandler_wakeup(void *arg, int state) 320115e32d5dSMike Smith { 3202bee4aa4aSNate Lawson 3203b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 32040ae55423SMike Smith 3205bee4aa4aSNate Lawson /* Currently, nothing to do for wakeup. */ 3206cb9b0d80SMike Smith 32070ae55423SMike Smith return_VOID; 320815e32d5dSMike Smith } 320915e32d5dSMike Smith 321015e32d5dSMike Smith /* 321115e32d5dSMike Smith * ACPICA Event Handlers (FixedEvent, also called from button notify handler) 321215e32d5dSMike Smith */ 3213b5854f5fSJung-uk Kim static void 3214b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler(void *context) 3215b5854f5fSJung-uk Kim { 3216b5854f5fSJung-uk Kim 3217b5854f5fSJung-uk Kim EVENTHANDLER_INVOKE(acpi_sleep_event, *(int *)context); 3218b5854f5fSJung-uk Kim } 3219b5854f5fSJung-uk Kim 3220b5854f5fSJung-uk Kim static void 3221b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler(void *context) 3222b5854f5fSJung-uk Kim { 3223b5854f5fSJung-uk Kim 3224b5854f5fSJung-uk Kim EVENTHANDLER_INVOKE(acpi_wakeup_event, *(int *)context); 3225b5854f5fSJung-uk Kim } 3226b5854f5fSJung-uk Kim 322715e32d5dSMike Smith UINT32 322833febf93SNate Lawson acpi_event_power_button_sleep(void *context) 322915e32d5dSMike Smith { 323015e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 323115e32d5dSMike Smith 3232b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 32330ae55423SMike Smith 3234b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3235b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler, &sc->acpi_power_button_sx))) 3236b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3237b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 323815e32d5dSMike Smith } 323915e32d5dSMike Smith 324015e32d5dSMike Smith UINT32 324133febf93SNate Lawson acpi_event_power_button_wake(void *context) 324215e32d5dSMike Smith { 324315e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 324415e32d5dSMike Smith 3245b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 32460ae55423SMike Smith 3247b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3248b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler, &sc->acpi_power_button_sx))) 3249b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3250b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 325115e32d5dSMike Smith } 325215e32d5dSMike Smith 325315e32d5dSMike Smith UINT32 325433febf93SNate Lawson acpi_event_sleep_button_sleep(void *context) 325515e32d5dSMike Smith { 325615e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 325715e32d5dSMike Smith 3258b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 32590ae55423SMike Smith 3260b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3261b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler, &sc->acpi_sleep_button_sx))) 3262b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3263b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 326415e32d5dSMike Smith } 326515e32d5dSMike Smith 326615e32d5dSMike Smith UINT32 326733febf93SNate Lawson acpi_event_sleep_button_wake(void *context) 326815e32d5dSMike Smith { 326915e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 327015e32d5dSMike Smith 3271b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 32720ae55423SMike Smith 3273b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3274b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler, &sc->acpi_sleep_button_sx))) 3275b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3276b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 327715e32d5dSMike Smith } 327815e32d5dSMike Smith 327915e32d5dSMike Smith /* 3280bee4aa4aSNate Lawson * XXX This static buffer is suboptimal. There is no locking so only 3281bee4aa4aSNate Lawson * use this for single-threaded callers. 328215e32d5dSMike Smith */ 328315e32d5dSMike Smith char * 328415e32d5dSMike Smith acpi_name(ACPI_HANDLE handle) 328515e32d5dSMike Smith { 3286bee4aa4aSNate Lawson ACPI_BUFFER buf; 3287bee4aa4aSNate Lawson static char data[256]; 328815e32d5dSMike Smith 3289bee4aa4aSNate Lawson buf.Length = sizeof(data); 3290bee4aa4aSNate Lawson buf.Pointer = data; 3291cb9b0d80SMike Smith 32920a9a1f44SNate Lawson if (handle && ACPI_SUCCESS(AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf))) 3293bee4aa4aSNate Lawson return (data); 3294bee4aa4aSNate Lawson return ("(unknown)"); 329515e32d5dSMike Smith } 329615e32d5dSMike Smith 329715e32d5dSMike Smith /* 329815e32d5dSMike Smith * Debugging/bug-avoidance. Avoid trying to fetch info on various 329915e32d5dSMike Smith * parts of the namespace. 330015e32d5dSMike Smith */ 330115e32d5dSMike Smith int 330215e32d5dSMike Smith acpi_avoid(ACPI_HANDLE handle) 330315e32d5dSMike Smith { 33043c600cfbSJohn Baldwin char *cp, *env, *np; 330515e32d5dSMike Smith int len; 330615e32d5dSMike Smith 330715e32d5dSMike Smith np = acpi_name(handle); 330815e32d5dSMike Smith if (*np == '\\') 330915e32d5dSMike Smith np++; 33103c600cfbSJohn Baldwin if ((env = getenv("debug.acpi.avoid")) == NULL) 331115e32d5dSMike Smith return (0); 331215e32d5dSMike Smith 3313be2b1797SNate Lawson /* Scan the avoid list checking for a match */ 33143c600cfbSJohn Baldwin cp = env; 331515e32d5dSMike Smith for (;;) { 3316bee4aa4aSNate Lawson while (*cp != 0 && isspace(*cp)) 331715e32d5dSMike Smith cp++; 331815e32d5dSMike Smith if (*cp == 0) 331915e32d5dSMike Smith break; 332015e32d5dSMike Smith len = 0; 3321bee4aa4aSNate Lawson while (cp[len] != 0 && !isspace(cp[len])) 332215e32d5dSMike Smith len++; 3323d786139cSMaxime Henrion if (!strncmp(cp, np, len)) { 33243c600cfbSJohn Baldwin freeenv(env); 33250ae55423SMike Smith return(1); 3326d786139cSMaxime Henrion } 33270ae55423SMike Smith cp += len; 33280ae55423SMike Smith } 33293c600cfbSJohn Baldwin freeenv(env); 3330be2b1797SNate Lawson 33310ae55423SMike Smith return (0); 33320ae55423SMike Smith } 33330ae55423SMike Smith 33340ae55423SMike Smith /* 33350ae55423SMike Smith * Debugging/bug-avoidance. Disable ACPI subsystem components. 33360ae55423SMike Smith */ 33370ae55423SMike Smith int 33380ae55423SMike Smith acpi_disabled(char *subsys) 33390ae55423SMike Smith { 334078689b15SMaxime Henrion char *cp, *env; 33410ae55423SMike Smith int len; 33420ae55423SMike Smith 33433184cf5aSNate Lawson if ((env = getenv("debug.acpi.disabled")) == NULL) 33440ae55423SMike Smith return (0); 33453184cf5aSNate Lawson if (strcmp(env, "all") == 0) { 334678689b15SMaxime Henrion freeenv(env); 33470ae55423SMike Smith return (1); 3348d786139cSMaxime Henrion } 33490ae55423SMike Smith 33503184cf5aSNate Lawson /* Scan the disable list, checking for a match. */ 335178689b15SMaxime Henrion cp = env; 33520ae55423SMike Smith for (;;) { 33533184cf5aSNate Lawson while (*cp != '\0' && isspace(*cp)) 33540ae55423SMike Smith cp++; 33553184cf5aSNate Lawson if (*cp == '\0') 33560ae55423SMike Smith break; 33570ae55423SMike Smith len = 0; 33583184cf5aSNate Lawson while (cp[len] != '\0' && !isspace(cp[len])) 33590ae55423SMike Smith len++; 33603184cf5aSNate Lawson if (strncmp(cp, subsys, len) == 0) { 336178689b15SMaxime Henrion freeenv(env); 336215e32d5dSMike Smith return (1); 3363d786139cSMaxime Henrion } 336415e32d5dSMike Smith cp += len; 336515e32d5dSMike Smith } 336678689b15SMaxime Henrion freeenv(env); 3367be2b1797SNate Lawson 336815e32d5dSMike Smith return (0); 336915e32d5dSMike Smith } 337015e32d5dSMike Smith 337115e32d5dSMike Smith /* 337215e32d5dSMike Smith * Control interface. 337315e32d5dSMike Smith * 33740ae55423SMike Smith * We multiplex ioctls for all participating ACPI devices here. Individual 3375be2b1797SNate Lawson * drivers wanting to be accessible via /dev/acpi should use the 3376be2b1797SNate Lawson * register/deregister interface to make their handlers visible. 337715e32d5dSMike Smith */ 33780ae55423SMike Smith struct acpi_ioctl_hook 33790ae55423SMike Smith { 33800ae55423SMike Smith TAILQ_ENTRY(acpi_ioctl_hook) link; 33810ae55423SMike Smith u_long cmd; 3382be2b1797SNate Lawson acpi_ioctl_fn fn; 33830ae55423SMike Smith void *arg; 33840ae55423SMike Smith }; 33850ae55423SMike Smith 33860ae55423SMike Smith static TAILQ_HEAD(,acpi_ioctl_hook) acpi_ioctl_hooks; 33870ae55423SMike Smith static int acpi_ioctl_hooks_initted; 33880ae55423SMike Smith 33890ae55423SMike Smith int 3390be2b1797SNate Lawson acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg) 33910ae55423SMike Smith { 33920ae55423SMike Smith struct acpi_ioctl_hook *hp; 33930ae55423SMike Smith 33940ae55423SMike Smith if ((hp = malloc(sizeof(*hp), M_ACPIDEV, M_NOWAIT)) == NULL) 33950ae55423SMike Smith return (ENOMEM); 33960ae55423SMike Smith hp->cmd = cmd; 33970ae55423SMike Smith hp->fn = fn; 33980ae55423SMike Smith hp->arg = arg; 339915e2f34fSNate Lawson 340015e2f34fSNate Lawson ACPI_LOCK(acpi); 34010ae55423SMike Smith if (acpi_ioctl_hooks_initted == 0) { 34020ae55423SMike Smith TAILQ_INIT(&acpi_ioctl_hooks); 34030ae55423SMike Smith acpi_ioctl_hooks_initted = 1; 34040ae55423SMike Smith } 34050ae55423SMike Smith TAILQ_INSERT_TAIL(&acpi_ioctl_hooks, hp, link); 340615e2f34fSNate Lawson ACPI_UNLOCK(acpi); 340715e2f34fSNate Lawson 34080ae55423SMike Smith return (0); 34090ae55423SMike Smith } 34100ae55423SMike Smith 34110ae55423SMike Smith void 3412be2b1797SNate Lawson acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn) 34130ae55423SMike Smith { 34140ae55423SMike Smith struct acpi_ioctl_hook *hp; 34150ae55423SMike Smith 341615e2f34fSNate Lawson ACPI_LOCK(acpi); 34170ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) 341815e2f34fSNate Lawson if (hp->cmd == cmd && hp->fn == fn) 34190ae55423SMike Smith break; 34200ae55423SMike Smith 34210ae55423SMike Smith if (hp != NULL) { 34220ae55423SMike Smith TAILQ_REMOVE(&acpi_ioctl_hooks, hp, link); 34230ae55423SMike Smith free(hp, M_ACPIDEV); 34240ae55423SMike Smith } 342515e2f34fSNate Lawson ACPI_UNLOCK(acpi); 34260ae55423SMike Smith } 34270ae55423SMike Smith 342815e32d5dSMike Smith static int 342900b4e54aSWarner Losh acpiopen(struct cdev *dev, int flag, int fmt, struct thread *td) 343015e32d5dSMike Smith { 343115e32d5dSMike Smith return (0); 343215e32d5dSMike Smith } 343315e32d5dSMike Smith 343415e32d5dSMike Smith static int 343500b4e54aSWarner Losh acpiclose(struct cdev *dev, int flag, int fmt, struct thread *td) 343615e32d5dSMike Smith { 343715e32d5dSMike Smith return (0); 343815e32d5dSMike Smith } 343915e32d5dSMike Smith 344015e32d5dSMike Smith static int 344100b4e54aSWarner Losh acpiioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 344215e32d5dSMike Smith { 344315e32d5dSMike Smith struct acpi_softc *sc; 34440ae55423SMike Smith struct acpi_ioctl_hook *hp; 3445bee4aa4aSNate Lawson int error, state; 344615e32d5dSMike Smith 3447a2e35898SDavid E. O'Brien error = 0; 3448a2e35898SDavid E. O'Brien hp = NULL; 344915e32d5dSMike Smith sc = dev->si_drv1; 345015e32d5dSMike Smith 34510ae55423SMike Smith /* 34520ae55423SMike Smith * Scan the list of registered ioctls, looking for handlers. 34530ae55423SMike Smith */ 345415e2f34fSNate Lawson ACPI_LOCK(acpi); 3455bee4aa4aSNate Lawson if (acpi_ioctl_hooks_initted) 34560ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) { 3457bee4aa4aSNate Lawson if (hp->cmd == cmd) 3458bee4aa4aSNate Lawson break; 34590ae55423SMike Smith } 346015e2f34fSNate Lawson ACPI_UNLOCK(acpi); 3461bee4aa4aSNate Lawson if (hp) 3462bee4aa4aSNate Lawson return (hp->fn(cmd, addr, hp->arg)); 34630ae55423SMike Smith 34640ae55423SMike Smith /* 3465a89fcf28STakanori Watanabe * Core ioctls are not permitted for non-writable user. 3466a89fcf28STakanori Watanabe * Currently, other ioctls just fetch information. 3467a89fcf28STakanori Watanabe * Not changing system behavior. 3468a89fcf28STakanori Watanabe */ 3469be2b1797SNate Lawson if ((flag & FWRITE) == 0) 3470be2b1797SNate Lawson return (EPERM); 3471a89fcf28STakanori Watanabe 3472be2b1797SNate Lawson /* Core system ioctls. */ 347315e32d5dSMike Smith switch (cmd) { 347400a30448SNate Lawson case ACPIIO_REQSLPSTATE: 347500a30448SNate Lawson state = *(int *)addr; 347600a30448SNate Lawson if (state != ACPI_STATE_S5) 3477a0e73a12SJung-uk Kim return (acpi_ReqSleepState(sc, state)); 3478a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "power off via acpi ioctl not supported\n"); 3479a0e73a12SJung-uk Kim error = EOPNOTSUPP; 348000a30448SNate Lawson break; 348100a30448SNate Lawson case ACPIIO_ACKSLPSTATE: 348200a30448SNate Lawson error = *(int *)addr; 348300a30448SNate Lawson error = acpi_AckSleepState(sc->acpi_clone, error); 348400a30448SNate Lawson break; 348500a30448SNate Lawson case ACPIIO_SETSLPSTATE: /* DEPRECATED */ 348615e32d5dSMike Smith state = *(int *)addr; 3487a0e73a12SJung-uk Kim if (state < ACPI_STATE_S0 || state > ACPI_S_STATES_MAX) 3488a0e73a12SJung-uk Kim return (EINVAL); 3489a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 3490a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3491a0e73a12SJung-uk Kim if (ACPI_FAILURE(acpi_SetSleepState(sc, state))) 3492a0e73a12SJung-uk Kim error = ENXIO; 349315e32d5dSMike Smith break; 349415e32d5dSMike Smith default: 3495bee4aa4aSNate Lawson error = ENXIO; 349615e32d5dSMike Smith break; 349715e32d5dSMike Smith } 3498917d44c8SMitsuru IWASAKI 349915e32d5dSMike Smith return (error); 350015e32d5dSMike Smith } 350115e32d5dSMike Smith 35021d073b1dSJohn Baldwin static int 3503a0e73a12SJung-uk Kim acpi_sname2sstate(const char *sname) 3504a0e73a12SJung-uk Kim { 3505a0e73a12SJung-uk Kim int sstate; 3506a0e73a12SJung-uk Kim 3507a0e73a12SJung-uk Kim if (toupper(sname[0]) == 'S') { 3508a0e73a12SJung-uk Kim sstate = sname[1] - '0'; 3509a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5 && 3510a0e73a12SJung-uk Kim sname[2] == '\0') 3511a0e73a12SJung-uk Kim return (sstate); 3512a0e73a12SJung-uk Kim } else if (strcasecmp(sname, "NONE") == 0) 3513a0e73a12SJung-uk Kim return (ACPI_STATE_UNKNOWN); 3514a0e73a12SJung-uk Kim return (-1); 3515a0e73a12SJung-uk Kim } 3516a0e73a12SJung-uk Kim 3517a0e73a12SJung-uk Kim static const char * 3518a0e73a12SJung-uk Kim acpi_sstate2sname(int sstate) 3519a0e73a12SJung-uk Kim { 3520a0e73a12SJung-uk Kim static const char *snames[] = { "S0", "S1", "S2", "S3", "S4", "S5" }; 3521a0e73a12SJung-uk Kim 3522a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5) 3523a0e73a12SJung-uk Kim return (snames[sstate]); 3524a0e73a12SJung-uk Kim else if (sstate == ACPI_STATE_UNKNOWN) 3525a0e73a12SJung-uk Kim return ("NONE"); 3526a0e73a12SJung-uk Kim return (NULL); 3527a0e73a12SJung-uk Kim } 3528a0e73a12SJung-uk Kim 3529a0e73a12SJung-uk Kim static int 3530d75de536SMitsuru IWASAKI acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 3531d75de536SMitsuru IWASAKI { 3532d75de536SMitsuru IWASAKI int error; 3533bee4aa4aSNate Lawson struct sbuf sb; 3534a0e73a12SJung-uk Kim UINT8 state; 3535d75de536SMitsuru IWASAKI 3536bee4aa4aSNate Lawson sbuf_new(&sb, NULL, 32, SBUF_AUTOEXTEND); 3537a0e73a12SJung-uk Kim for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++) 3538a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) 3539a0e73a12SJung-uk Kim sbuf_printf(&sb, "%s ", acpi_sstate2sname(state)); 3540bee4aa4aSNate Lawson sbuf_trim(&sb); 3541bee4aa4aSNate Lawson sbuf_finish(&sb); 3542bee4aa4aSNate Lawson error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req); 3543bee4aa4aSNate Lawson sbuf_delete(&sb); 3544d75de536SMitsuru IWASAKI return (error); 3545d75de536SMitsuru IWASAKI } 3546d75de536SMitsuru IWASAKI 3547d75de536SMitsuru IWASAKI static int 35481d073b1dSJohn Baldwin acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 35491d073b1dSJohn Baldwin { 35501d073b1dSJohn Baldwin char sleep_state[10]; 3551a0e73a12SJung-uk Kim int error, new_state, old_state; 35521d073b1dSJohn Baldwin 3553a0e73a12SJung-uk Kim old_state = *(int *)oidp->oid_arg1; 3554a0e73a12SJung-uk Kim strlcpy(sleep_state, acpi_sstate2sname(old_state), sizeof(sleep_state)); 35551d073b1dSJohn Baldwin error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req); 35561d073b1dSJohn Baldwin if (error == 0 && req->newptr != NULL) { 3557a0e73a12SJung-uk Kim new_state = acpi_sname2sstate(sleep_state); 3558a0e73a12SJung-uk Kim if (new_state < ACPI_STATE_S1) 3559a0e73a12SJung-uk Kim return (EINVAL); 356054b43614SJung-uk Kim if (new_state < ACPI_S_STATE_COUNT && !acpi_sleep_states[new_state]) 3561a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3562be2b1797SNate Lawson if (new_state != old_state) 3563a0e73a12SJung-uk Kim *(int *)oidp->oid_arg1 = new_state; 35641d073b1dSJohn Baldwin } 35651d073b1dSJohn Baldwin return (error); 35661d073b1dSJohn Baldwin } 35671d073b1dSJohn Baldwin 35689b937d48SNate Lawson /* Inform devctl(4) when we receive a Notify. */ 35699b937d48SNate Lawson void 35709b937d48SNate Lawson acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify) 35719b937d48SNate Lawson { 35729b937d48SNate Lawson char notify_buf[16]; 35739b937d48SNate Lawson ACPI_BUFFER handle_buf; 35749b937d48SNate Lawson ACPI_STATUS status; 35759b937d48SNate Lawson 35769b937d48SNate Lawson if (subsystem == NULL) 35779b937d48SNate Lawson return; 35789b937d48SNate Lawson 35799b937d48SNate Lawson handle_buf.Pointer = NULL; 35809b937d48SNate Lawson handle_buf.Length = ACPI_ALLOCATE_BUFFER; 35819b937d48SNate Lawson status = AcpiNsHandleToPathname(h, &handle_buf); 35829b937d48SNate Lawson if (ACPI_FAILURE(status)) 35839b937d48SNate Lawson return; 35849b937d48SNate Lawson snprintf(notify_buf, sizeof(notify_buf), "notify=0x%02x", notify); 35859b937d48SNate Lawson devctl_notify("ACPI", subsystem, handle_buf.Pointer, notify_buf); 35869b937d48SNate Lawson AcpiOsFree(handle_buf.Pointer); 35879b937d48SNate Lawson } 35889b937d48SNate Lawson 358915e32d5dSMike Smith #ifdef ACPI_DEBUG 35900ae55423SMike Smith /* 35910ae55423SMike Smith * Support for parsing debug options from the kernel environment. 35920ae55423SMike Smith * 35930ae55423SMike Smith * Bits may be set in the AcpiDbgLayer and AcpiDbgLevel debug registers 35940ae55423SMike Smith * by specifying the names of the bits in the debug.acpi.layer and 35950ae55423SMike Smith * debug.acpi.level environment variables. Bits may be unset by 35960ae55423SMike Smith * prefixing the bit name with !. 35970ae55423SMike Smith */ 359815e32d5dSMike Smith struct debugtag 359915e32d5dSMike Smith { 360015e32d5dSMike Smith char *name; 360115e32d5dSMike Smith UINT32 value; 360215e32d5dSMike Smith }; 360315e32d5dSMike Smith 360415e32d5dSMike Smith static struct debugtag dbg_layer[] = { 3605c5ba0be4SMike Smith {"ACPI_UTILITIES", ACPI_UTILITIES}, 3606c5ba0be4SMike Smith {"ACPI_HARDWARE", ACPI_HARDWARE}, 3607c5ba0be4SMike Smith {"ACPI_EVENTS", ACPI_EVENTS}, 3608c5ba0be4SMike Smith {"ACPI_TABLES", ACPI_TABLES}, 3609c5ba0be4SMike Smith {"ACPI_NAMESPACE", ACPI_NAMESPACE}, 3610c5ba0be4SMike Smith {"ACPI_PARSER", ACPI_PARSER}, 3611c5ba0be4SMike Smith {"ACPI_DISPATCHER", ACPI_DISPATCHER}, 3612c5ba0be4SMike Smith {"ACPI_EXECUTER", ACPI_EXECUTER}, 3613c5ba0be4SMike Smith {"ACPI_RESOURCES", ACPI_RESOURCES}, 3614d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DEBUGGER", ACPI_CA_DEBUGGER}, 36154c1cdee6SMike Smith {"ACPI_OS_SERVICES", ACPI_OS_SERVICES}, 3616d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DISASSEMBLER", ACPI_CA_DISASSEMBLER}, 3617297835bcSNate Lawson {"ACPI_ALL_COMPONENTS", ACPI_ALL_COMPONENTS}, 36184c1cdee6SMike Smith 3619c5ba0be4SMike Smith {"ACPI_AC_ADAPTER", ACPI_AC_ADAPTER}, 3620c5ba0be4SMike Smith {"ACPI_BATTERY", ACPI_BATTERY}, 36213184cf5aSNate Lawson {"ACPI_BUS", ACPI_BUS}, 3622c5ba0be4SMike Smith {"ACPI_BUTTON", ACPI_BUTTON}, 36233184cf5aSNate Lawson {"ACPI_EC", ACPI_EC}, 36243184cf5aSNate Lawson {"ACPI_FAN", ACPI_FAN}, 36253184cf5aSNate Lawson {"ACPI_POWERRES", ACPI_POWERRES}, 36264c1cdee6SMike Smith {"ACPI_PROCESSOR", ACPI_PROCESSOR}, 3627cb9b0d80SMike Smith {"ACPI_THERMAL", ACPI_THERMAL}, 36283184cf5aSNate Lawson {"ACPI_TIMER", ACPI_TIMER}, 3629b53f2771SMike Smith {"ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS}, 363015e32d5dSMike Smith {NULL, 0} 363115e32d5dSMike Smith }; 363215e32d5dSMike Smith 363315e32d5dSMike Smith static struct debugtag dbg_level[] = { 36349501b603SJohn Baldwin {"ACPI_LV_INIT", ACPI_LV_INIT}, 36354c1cdee6SMike Smith {"ACPI_LV_DEBUG_OBJECT", ACPI_LV_DEBUG_OBJECT}, 36369501b603SJohn Baldwin {"ACPI_LV_INFO", ACPI_LV_INFO}, 3637cc6455afSJung-uk Kim {"ACPI_LV_REPAIR", ACPI_LV_REPAIR}, 36384c1cdee6SMike Smith {"ACPI_LV_ALL_EXCEPTIONS", ACPI_LV_ALL_EXCEPTIONS}, 3639d62ab2f4SMitsuru IWASAKI 3640d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 1 [Standard Trace Level] */ 3641297835bcSNate Lawson {"ACPI_LV_INIT_NAMES", ACPI_LV_INIT_NAMES}, 36424c1cdee6SMike Smith {"ACPI_LV_PARSE", ACPI_LV_PARSE}, 36434c1cdee6SMike Smith {"ACPI_LV_LOAD", ACPI_LV_LOAD}, 3644d62ab2f4SMitsuru IWASAKI {"ACPI_LV_DISPATCH", ACPI_LV_DISPATCH}, 36454c1cdee6SMike Smith {"ACPI_LV_EXEC", ACPI_LV_EXEC}, 36464c1cdee6SMike Smith {"ACPI_LV_NAMES", ACPI_LV_NAMES}, 36474c1cdee6SMike Smith {"ACPI_LV_OPREGION", ACPI_LV_OPREGION}, 36484c1cdee6SMike Smith {"ACPI_LV_BFIELD", ACPI_LV_BFIELD}, 36494c1cdee6SMike Smith {"ACPI_LV_TABLES", ACPI_LV_TABLES}, 36504c1cdee6SMike Smith {"ACPI_LV_VALUES", ACPI_LV_VALUES}, 36514c1cdee6SMike Smith {"ACPI_LV_OBJECTS", ACPI_LV_OBJECTS}, 36524c1cdee6SMike Smith {"ACPI_LV_RESOURCES", ACPI_LV_RESOURCES}, 36534c1cdee6SMike Smith {"ACPI_LV_USER_REQUESTS", ACPI_LV_USER_REQUESTS}, 36544c1cdee6SMike Smith {"ACPI_LV_PACKAGE", ACPI_LV_PACKAGE}, 3655d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY1", ACPI_LV_VERBOSITY1}, 3656d62ab2f4SMitsuru IWASAKI 3657d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 2 [Function tracing and memory allocation] */ 3658d62ab2f4SMitsuru IWASAKI {"ACPI_LV_ALLOCATIONS", ACPI_LV_ALLOCATIONS}, 3659d62ab2f4SMitsuru IWASAKI {"ACPI_LV_FUNCTIONS", ACPI_LV_FUNCTIONS}, 3660d62ab2f4SMitsuru IWASAKI {"ACPI_LV_OPTIMIZATIONS", ACPI_LV_OPTIMIZATIONS}, 3661d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY2", ACPI_LV_VERBOSITY2}, 36624c1cdee6SMike Smith {"ACPI_LV_ALL", ACPI_LV_ALL}, 3663d62ab2f4SMitsuru IWASAKI 3664d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 3 [Threading, I/O, and Interrupts] */ 3665d62ab2f4SMitsuru IWASAKI {"ACPI_LV_MUTEX", ACPI_LV_MUTEX}, 3666d62ab2f4SMitsuru IWASAKI {"ACPI_LV_THREADS", ACPI_LV_THREADS}, 3667d62ab2f4SMitsuru IWASAKI {"ACPI_LV_IO", ACPI_LV_IO}, 3668d62ab2f4SMitsuru IWASAKI {"ACPI_LV_INTERRUPTS", ACPI_LV_INTERRUPTS}, 3669d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY3", ACPI_LV_VERBOSITY3}, 3670d62ab2f4SMitsuru IWASAKI 3671d62ab2f4SMitsuru IWASAKI /* Exceptionally verbose output -- also used in the global "DebugLevel" */ 367298479b04SMitsuru IWASAKI {"ACPI_LV_AML_DISASSEMBLE", ACPI_LV_AML_DISASSEMBLE}, 367398479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE_INFO", ACPI_LV_VERBOSE_INFO}, 367498479b04SMitsuru IWASAKI {"ACPI_LV_FULL_TABLES", ACPI_LV_FULL_TABLES}, 367598479b04SMitsuru IWASAKI {"ACPI_LV_EVENTS", ACPI_LV_EVENTS}, 367698479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE", ACPI_LV_VERBOSE}, 367715e32d5dSMike Smith {NULL, 0} 367815e32d5dSMike Smith }; 367915e32d5dSMike Smith 368015e32d5dSMike Smith static void 368115e32d5dSMike Smith acpi_parse_debug(char *cp, struct debugtag *tag, UINT32 *flag) 368215e32d5dSMike Smith { 368315e32d5dSMike Smith char *ep; 368415e32d5dSMike Smith int i, l; 36850ae55423SMike Smith int set; 368615e32d5dSMike Smith 368715e32d5dSMike Smith while (*cp) { 368815e32d5dSMike Smith if (isspace(*cp)) { 368915e32d5dSMike Smith cp++; 369015e32d5dSMike Smith continue; 369115e32d5dSMike Smith } 369215e32d5dSMike Smith ep = cp; 369315e32d5dSMike Smith while (*ep && !isspace(*ep)) 369415e32d5dSMike Smith ep++; 36950ae55423SMike Smith if (*cp == '!') { 36960ae55423SMike Smith set = 0; 36970ae55423SMike Smith cp++; 36980ae55423SMike Smith if (cp == ep) 36990ae55423SMike Smith continue; 37000ae55423SMike Smith } else { 37010ae55423SMike Smith set = 1; 37020ae55423SMike Smith } 370315e32d5dSMike Smith l = ep - cp; 370415e32d5dSMike Smith for (i = 0; tag[i].name != NULL; i++) { 370515e32d5dSMike Smith if (!strncmp(cp, tag[i].name, l)) { 3706be2b1797SNate Lawson if (set) 370715e32d5dSMike Smith *flag |= tag[i].value; 3708be2b1797SNate Lawson else 37090ae55423SMike Smith *flag &= ~tag[i].value; 371015e32d5dSMike Smith } 371115e32d5dSMike Smith } 371215e32d5dSMike Smith cp = ep; 371315e32d5dSMike Smith } 371415e32d5dSMike Smith } 371515e32d5dSMike Smith 371615e32d5dSMike Smith static void 37172a4ac806SMike Smith acpi_set_debugging(void *junk) 371815e32d5dSMike Smith { 37197e639165SNate Lawson char *layer, *level; 372015e32d5dSMike Smith 37211d7b121cSNate Lawson if (cold) { 37220ae55423SMike Smith AcpiDbgLayer = 0; 37230ae55423SMike Smith AcpiDbgLevel = 0; 37241d7b121cSNate Lawson } 37251d7b121cSNate Lawson 37267e639165SNate Lawson layer = getenv("debug.acpi.layer"); 37277e639165SNate Lawson level = getenv("debug.acpi.level"); 37287e639165SNate Lawson if (layer == NULL && level == NULL) 37297e639165SNate Lawson return; 37300ae55423SMike Smith 37317e639165SNate Lawson printf("ACPI set debug"); 37327e639165SNate Lawson if (layer != NULL) { 37337e639165SNate Lawson if (strcmp("NONE", layer) != 0) 37347e639165SNate Lawson printf(" layer '%s'", layer); 37357e639165SNate Lawson acpi_parse_debug(layer, &dbg_layer[0], &AcpiDbgLayer); 37367e639165SNate Lawson freeenv(layer); 37371d7b121cSNate Lawson } 37387e639165SNate Lawson if (level != NULL) { 37397e639165SNate Lawson if (strcmp("NONE", level) != 0) 37407e639165SNate Lawson printf(" level '%s'", level); 37417e639165SNate Lawson acpi_parse_debug(level, &dbg_level[0], &AcpiDbgLevel); 37427e639165SNate Lawson freeenv(level); 37437e639165SNate Lawson } 37447e639165SNate Lawson printf("\n"); 374515e32d5dSMike Smith } 3746bee4aa4aSNate Lawson 3747be2b1797SNate Lawson SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging, 3748be2b1797SNate Lawson NULL); 37491d7b121cSNate Lawson 37501d7b121cSNate Lawson static int 37511d7b121cSNate Lawson acpi_debug_sysctl(SYSCTL_HANDLER_ARGS) 37521d7b121cSNate Lawson { 375354f6bca0SNate Lawson int error, *dbg; 37541d7b121cSNate Lawson struct debugtag *tag; 375554f6bca0SNate Lawson struct sbuf sb; 37561d7b121cSNate Lawson 375754f6bca0SNate Lawson if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 375854f6bca0SNate Lawson return (ENOMEM); 37591d7b121cSNate Lawson if (strcmp(oidp->oid_arg1, "debug.acpi.layer") == 0) { 37601d7b121cSNate Lawson tag = &dbg_layer[0]; 37611d7b121cSNate Lawson dbg = &AcpiDbgLayer; 37621d7b121cSNate Lawson } else { 37631d7b121cSNate Lawson tag = &dbg_level[0]; 37641d7b121cSNate Lawson dbg = &AcpiDbgLevel; 37651d7b121cSNate Lawson } 37661d7b121cSNate Lawson 37671d7b121cSNate Lawson /* Get old values if this is a get request. */ 376815e2f34fSNate Lawson ACPI_SERIAL_BEGIN(acpi); 37691d7b121cSNate Lawson if (*dbg == 0) { 377054f6bca0SNate Lawson sbuf_cpy(&sb, "NONE"); 37711d7b121cSNate Lawson } else if (req->newptr == NULL) { 37721d7b121cSNate Lawson for (; tag->name != NULL; tag++) { 377354f6bca0SNate Lawson if ((*dbg & tag->value) == tag->value) 377454f6bca0SNate Lawson sbuf_printf(&sb, "%s ", tag->name); 37751d7b121cSNate Lawson } 37761d7b121cSNate Lawson } 377754f6bca0SNate Lawson sbuf_trim(&sb); 377854f6bca0SNate Lawson sbuf_finish(&sb); 37791d7b121cSNate Lawson 37807e639165SNate Lawson /* Copy out the old values to the user. */ 37817e639165SNate Lawson error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb)); 378254f6bca0SNate Lawson sbuf_delete(&sb); 37831d7b121cSNate Lawson 37841d7b121cSNate Lawson /* If the user is setting a string, parse it. */ 37851d7b121cSNate Lawson if (error == 0 && req->newptr != NULL) { 37861d7b121cSNate Lawson *dbg = 0; 37871d7b121cSNate Lawson setenv((char *)oidp->oid_arg1, (char *)req->newptr); 37881d7b121cSNate Lawson acpi_set_debugging(NULL); 37891d7b121cSNate Lawson } 379015e2f34fSNate Lawson ACPI_SERIAL_END(acpi); 37911d7b121cSNate Lawson 37921d7b121cSNate Lawson return (error); 37931d7b121cSNate Lawson } 3794bee4aa4aSNate Lawson 37951d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW | CTLTYPE_STRING, 37961d7b121cSNate Lawson "debug.acpi.layer", 0, acpi_debug_sysctl, "A", ""); 37971d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING, 37981d7b121cSNate Lawson "debug.acpi.level", 0, acpi_debug_sysctl, "A", ""); 3799bee4aa4aSNate Lawson #endif /* ACPI_DEBUG */ 3800f9390180SMitsuru IWASAKI 3801f9390180SMitsuru IWASAKI static int 38022a18c71dSJung-uk Kim acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS) 38032a18c71dSJung-uk Kim { 38042a18c71dSJung-uk Kim int error; 38052a18c71dSJung-uk Kim int old; 38062a18c71dSJung-uk Kim 38072a18c71dSJung-uk Kim old = acpi_debug_objects; 38082a18c71dSJung-uk Kim error = sysctl_handle_int(oidp, &acpi_debug_objects, 0, req); 38092a18c71dSJung-uk Kim if (error != 0 || req->newptr == NULL) 38102a18c71dSJung-uk Kim return (error); 38112a18c71dSJung-uk Kim if (old == acpi_debug_objects || (old && acpi_debug_objects)) 38122a18c71dSJung-uk Kim return (0); 38132a18c71dSJung-uk Kim 38142a18c71dSJung-uk Kim ACPI_SERIAL_BEGIN(acpi); 38152a18c71dSJung-uk Kim AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE; 38162a18c71dSJung-uk Kim ACPI_SERIAL_END(acpi); 38172a18c71dSJung-uk Kim 38182a18c71dSJung-uk Kim return (0); 38192a18c71dSJung-uk Kim } 38202a18c71dSJung-uk Kim 38212a18c71dSJung-uk Kim static int 3822ae19af49SJung-uk Kim acpi_parse_interfaces(char *str, struct acpi_interface *iface) 3823ae19af49SJung-uk Kim { 3824ae19af49SJung-uk Kim char *p; 3825ae19af49SJung-uk Kim size_t len; 3826ae19af49SJung-uk Kim int i, j; 3827ae19af49SJung-uk Kim 3828ae19af49SJung-uk Kim p = str; 3829ae19af49SJung-uk Kim while (isspace(*p) || *p == ',') 3830ae19af49SJung-uk Kim p++; 3831ae19af49SJung-uk Kim len = strlen(p); 3832ae19af49SJung-uk Kim if (len == 0) 3833ae19af49SJung-uk Kim return (0); 3834ae19af49SJung-uk Kim p = strdup(p, M_TEMP); 3835ae19af49SJung-uk Kim for (i = 0; i < len; i++) 3836ae19af49SJung-uk Kim if (p[i] == ',') 3837ae19af49SJung-uk Kim p[i] = '\0'; 3838ae19af49SJung-uk Kim i = j = 0; 3839ae19af49SJung-uk Kim while (i < len) 3840ae19af49SJung-uk Kim if (isspace(p[i]) || p[i] == '\0') 3841ae19af49SJung-uk Kim i++; 3842ae19af49SJung-uk Kim else { 3843ae19af49SJung-uk Kim i += strlen(p + i) + 1; 3844ae19af49SJung-uk Kim j++; 3845ae19af49SJung-uk Kim } 3846ae19af49SJung-uk Kim if (j == 0) { 3847ae19af49SJung-uk Kim free(p, M_TEMP); 3848ae19af49SJung-uk Kim return (0); 3849ae19af49SJung-uk Kim } 3850ae19af49SJung-uk Kim iface->data = malloc(sizeof(*iface->data) * j, M_TEMP, M_WAITOK); 3851ae19af49SJung-uk Kim iface->num = j; 3852ae19af49SJung-uk Kim i = j = 0; 3853ae19af49SJung-uk Kim while (i < len) 3854ae19af49SJung-uk Kim if (isspace(p[i]) || p[i] == '\0') 3855ae19af49SJung-uk Kim i++; 3856ae19af49SJung-uk Kim else { 3857ae19af49SJung-uk Kim iface->data[j] = p + i; 3858ae19af49SJung-uk Kim i += strlen(p + i) + 1; 3859ae19af49SJung-uk Kim j++; 3860ae19af49SJung-uk Kim } 3861ae19af49SJung-uk Kim 3862ae19af49SJung-uk Kim return (j); 3863ae19af49SJung-uk Kim } 3864ae19af49SJung-uk Kim 3865ae19af49SJung-uk Kim static void 3866ae19af49SJung-uk Kim acpi_free_interfaces(struct acpi_interface *iface) 3867ae19af49SJung-uk Kim { 3868ae19af49SJung-uk Kim 3869ae19af49SJung-uk Kim free(iface->data[0], M_TEMP); 3870ae19af49SJung-uk Kim free(iface->data, M_TEMP); 3871ae19af49SJung-uk Kim } 3872ae19af49SJung-uk Kim 3873ae19af49SJung-uk Kim static void 3874ae19af49SJung-uk Kim acpi_reset_interfaces(device_t dev) 3875ae19af49SJung-uk Kim { 3876ae19af49SJung-uk Kim struct acpi_interface list; 3877ae19af49SJung-uk Kim ACPI_STATUS status; 3878ae19af49SJung-uk Kim int i; 3879ae19af49SJung-uk Kim 3880ae19af49SJung-uk Kim if (acpi_parse_interfaces(acpi_install_interface, &list) > 0) { 3881ae19af49SJung-uk Kim for (i = 0; i < list.num; i++) { 3882ae19af49SJung-uk Kim status = AcpiInstallInterface(list.data[i]); 3883ae19af49SJung-uk Kim if (ACPI_FAILURE(status)) 3884ae19af49SJung-uk Kim device_printf(dev, 3885ae19af49SJung-uk Kim "failed to install _OSI(\"%s\"): %s\n", 3886ae19af49SJung-uk Kim list.data[i], AcpiFormatException(status)); 3887ae19af49SJung-uk Kim else if (bootverbose) 3888ae19af49SJung-uk Kim device_printf(dev, "installed _OSI(\"%s\")\n", 3889ae19af49SJung-uk Kim list.data[i]); 3890ae19af49SJung-uk Kim } 3891ae19af49SJung-uk Kim acpi_free_interfaces(&list); 3892ae19af49SJung-uk Kim } 3893ae19af49SJung-uk Kim if (acpi_parse_interfaces(acpi_remove_interface, &list) > 0) { 3894ae19af49SJung-uk Kim for (i = 0; i < list.num; i++) { 3895ae19af49SJung-uk Kim status = AcpiRemoveInterface(list.data[i]); 3896ae19af49SJung-uk Kim if (ACPI_FAILURE(status)) 3897ae19af49SJung-uk Kim device_printf(dev, 3898ae19af49SJung-uk Kim "failed to remove _OSI(\"%s\"): %s\n", 3899ae19af49SJung-uk Kim list.data[i], AcpiFormatException(status)); 3900ae19af49SJung-uk Kim else if (bootverbose) 3901ae19af49SJung-uk Kim device_printf(dev, "removed _OSI(\"%s\")\n", 3902ae19af49SJung-uk Kim list.data[i]); 3903ae19af49SJung-uk Kim } 3904ae19af49SJung-uk Kim acpi_free_interfaces(&list); 3905ae19af49SJung-uk Kim } 3906ae19af49SJung-uk Kim } 3907ae19af49SJung-uk Kim 3908ae19af49SJung-uk Kim static int 3909f9390180SMitsuru IWASAKI acpi_pm_func(u_long cmd, void *arg, ...) 3910f9390180SMitsuru IWASAKI { 3911f9390180SMitsuru IWASAKI int state, acpi_state; 3912f9390180SMitsuru IWASAKI int error; 3913f9390180SMitsuru IWASAKI struct acpi_softc *sc; 3914f9390180SMitsuru IWASAKI va_list ap; 3915f9390180SMitsuru IWASAKI 3916f9390180SMitsuru IWASAKI error = 0; 3917f9390180SMitsuru IWASAKI switch (cmd) { 3918f9390180SMitsuru IWASAKI case POWER_CMD_SUSPEND: 3919f9390180SMitsuru IWASAKI sc = (struct acpi_softc *)arg; 3920f9390180SMitsuru IWASAKI if (sc == NULL) { 3921f9390180SMitsuru IWASAKI error = EINVAL; 3922f9390180SMitsuru IWASAKI goto out; 3923f9390180SMitsuru IWASAKI } 3924f9390180SMitsuru IWASAKI 3925f9390180SMitsuru IWASAKI va_start(ap, arg); 3926f9390180SMitsuru IWASAKI state = va_arg(ap, int); 3927f9390180SMitsuru IWASAKI va_end(ap); 3928f9390180SMitsuru IWASAKI 3929f9390180SMitsuru IWASAKI switch (state) { 3930f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_STANDBY: 3931f9390180SMitsuru IWASAKI acpi_state = sc->acpi_standby_sx; 3932f9390180SMitsuru IWASAKI break; 3933f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_SUSPEND: 3934f9390180SMitsuru IWASAKI acpi_state = sc->acpi_suspend_sx; 3935f9390180SMitsuru IWASAKI break; 3936f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_HIBERNATE: 3937f9390180SMitsuru IWASAKI acpi_state = ACPI_STATE_S4; 3938f9390180SMitsuru IWASAKI break; 3939f9390180SMitsuru IWASAKI default: 3940f9390180SMitsuru IWASAKI error = EINVAL; 3941f9390180SMitsuru IWASAKI goto out; 3942f9390180SMitsuru IWASAKI } 3943f9390180SMitsuru IWASAKI 394400a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, acpi_state))) 394500a30448SNate Lawson error = ENXIO; 3946f9390180SMitsuru IWASAKI break; 3947f9390180SMitsuru IWASAKI default: 3948f9390180SMitsuru IWASAKI error = EINVAL; 3949f9390180SMitsuru IWASAKI goto out; 3950f9390180SMitsuru IWASAKI } 3951f9390180SMitsuru IWASAKI 3952f9390180SMitsuru IWASAKI out: 3953f9390180SMitsuru IWASAKI return (error); 3954f9390180SMitsuru IWASAKI } 3955f9390180SMitsuru IWASAKI 3956f9390180SMitsuru IWASAKI static void 3957f9390180SMitsuru IWASAKI acpi_pm_register(void *arg) 3958f9390180SMitsuru IWASAKI { 3959be2b1797SNate Lawson if (!cold || resource_disabled("acpi", 0)) 39606c407052SMitsuru IWASAKI return; 3961f9390180SMitsuru IWASAKI 3962f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, NULL); 3963f9390180SMitsuru IWASAKI } 3964f9390180SMitsuru IWASAKI 3965f9390180SMitsuru IWASAKI SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, acpi_pm_register, 0); 3966