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 22015e32d5dSMike Smith {0, 0} 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 281a0a15716SJung-uk Kim #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 4342be4e471SJung-uk Kim return_VALUE (0); 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++) 616a0e73a12SJung-uk Kim if (ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB))) 617a0e73a12SJung-uk Kim acpi_sleep_states[state] = TRUE; 618a0e73a12SJung-uk Kim 6191d073b1dSJohn Baldwin /* 620ea27c63eSNate Lawson * Dispatch the default sleep state to devices. The lid switch is set 621a0e73a12SJung-uk Kim * to UNKNOWN by default to avoid surprising users. 62215e32d5dSMike Smith */ 623a0e73a12SJung-uk Kim sc->acpi_power_button_sx = acpi_sleep_states[ACPI_STATE_S5] ? 624a0e73a12SJung-uk Kim ACPI_STATE_S5 : ACPI_STATE_UNKNOWN; 625a0e73a12SJung-uk Kim sc->acpi_lid_switch_sx = ACPI_STATE_UNKNOWN; 626a0e73a12SJung-uk Kim sc->acpi_standby_sx = acpi_sleep_states[ACPI_STATE_S1] ? 627a0e73a12SJung-uk Kim ACPI_STATE_S1 : ACPI_STATE_UNKNOWN; 628a0e73a12SJung-uk Kim sc->acpi_suspend_sx = acpi_sleep_states[ACPI_STATE_S3] ? 629a0e73a12SJung-uk Kim ACPI_STATE_S3 : ACPI_STATE_UNKNOWN; 63015e32d5dSMike Smith 631ea27c63eSNate Lawson /* Pick the first valid sleep state for the sleep button default. */ 632a0e73a12SJung-uk Kim sc->acpi_sleep_button_sx = ACPI_STATE_UNKNOWN; 63300a30448SNate Lawson for (state = ACPI_STATE_S1; state <= ACPI_STATE_S4; state++) 634a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) { 635ea27c63eSNate Lawson sc->acpi_sleep_button_sx = state; 636ea27c63eSNate Lawson break; 637ea27c63eSNate Lawson } 638ea27c63eSNate Lawson 63913d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(sc); 64015e32d5dSMike Smith 64115e32d5dSMike Smith /* 64215e32d5dSMike Smith * Scan the namespace and attach/initialise children. 64315e32d5dSMike Smith */ 64415e32d5dSMike Smith 64559e472e9SNate Lawson /* Register our shutdown handler. */ 646be2b1797SNate Lawson EVENTHANDLER_REGISTER(shutdown_final, acpi_shutdown_final, sc, 647be2b1797SNate Lawson SHUTDOWN_PRI_LAST); 64815e32d5dSMike Smith 64915e32d5dSMike Smith /* 65015e32d5dSMike Smith * Register our acpi event handlers. 65115e32d5dSMike Smith * XXX should be configurable eg. via userland policy manager. 65215e32d5dSMike Smith */ 653be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_sleep_event, acpi_system_eventhandler_sleep, 654be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 655be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_wakeup_event, acpi_system_eventhandler_wakeup, 656be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 65715e32d5dSMike Smith 658be2b1797SNate Lawson /* Flag our initial states. */ 659a0e73a12SJung-uk Kim sc->acpi_enabled = TRUE; 66015e32d5dSMike Smith sc->acpi_sstate = ACPI_STATE_S0; 661a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 66215e32d5dSMike Smith 663be2b1797SNate Lawson /* Create the control device */ 664a89fcf28STakanori Watanabe sc->acpi_dev_t = make_dev(&acpi_cdevsw, 0, UID_ROOT, GID_WHEEL, 0644, 6652a4689e8SRobert Watson "acpi"); 66615e32d5dSMike Smith sc->acpi_dev_t->si_drv1 = sc; 66715e32d5dSMike Smith 668be2b1797SNate Lawson if ((error = acpi_machdep_init(dev))) 669f86214b6SMitsuru IWASAKI goto out; 670f86214b6SMitsuru IWASAKI 671f9390180SMitsuru IWASAKI /* Register ACPI again to pass the correct argument of pm_func. */ 672f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, sc); 673f9390180SMitsuru IWASAKI 674eeb6dba2SJohn Baldwin if (!acpi_disabled("bus")) 675eeb6dba2SJohn Baldwin acpi_probe_children(dev); 676eeb6dba2SJohn Baldwin 6775a77b11bSJung-uk Kim /* Update all GPEs and enable runtime GPEs. */ 6785a77b11bSJung-uk Kim status = AcpiUpdateAllGpes(); 6795a77b11bSJung-uk Kim if (ACPI_FAILURE(status)) 6805a77b11bSJung-uk Kim device_printf(dev, "Could not update all GPEs: %s\n", 6815a77b11bSJung-uk Kim AcpiFormatException(status)); 6825a77b11bSJung-uk Kim 683a0e73a12SJung-uk Kim /* Allow sleep request after a while. */ 684a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 685a0e73a12SJung-uk Kim 686cb9b0d80SMike Smith error = 0; 687cb9b0d80SMike Smith 688cb9b0d80SMike Smith out: 689cb9b0d80SMike Smith return_VALUE (error); 69015e32d5dSMike Smith } 69115e32d5dSMike Smith 692a7a3177fSJung-uk Kim static void 693a7a3177fSJung-uk Kim acpi_set_power_children(device_t dev, int state) 694a7a3177fSJung-uk Kim { 695a7a3177fSJung-uk Kim device_t child, parent; 696a7a3177fSJung-uk Kim device_t *devlist; 697a7a3177fSJung-uk Kim struct pci_devinfo *dinfo; 698a7a3177fSJung-uk Kim int dstate, i, numdevs; 699a7a3177fSJung-uk Kim 700a7a3177fSJung-uk Kim if (device_get_children(dev, &devlist, &numdevs) != 0) 701a7a3177fSJung-uk Kim return; 702a7a3177fSJung-uk Kim 703a7a3177fSJung-uk Kim /* 704a7a3177fSJung-uk Kim * Retrieve and set D-state for the sleep state if _SxD is present. 705a7a3177fSJung-uk Kim * Skip children who aren't attached since they are handled separately. 706a7a3177fSJung-uk Kim */ 707a7a3177fSJung-uk Kim parent = device_get_parent(dev); 708a7a3177fSJung-uk Kim for (i = 0; i < numdevs; i++) { 709a7a3177fSJung-uk Kim child = devlist[i]; 710a7a3177fSJung-uk Kim dinfo = device_get_ivars(child); 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); 854247648afSTakanori Watanabe 855247648afSTakanori Watanabe if (dinfo->ad_handle) 856d40c0f53SNate Lawson snprintf(buf, buflen, "handle=%s", acpi_name(dinfo->ad_handle)); 857247648afSTakanori Watanabe else 858d40c0f53SNate Lawson snprintf(buf, buflen, "unknown"); 859247648afSTakanori Watanabe return (0); 860247648afSTakanori Watanabe } 861247648afSTakanori Watanabe 86263600cc3SNate Lawson /* PnP information for devctl(8) */ 86363600cc3SNate Lawson static int 864247648afSTakanori Watanabe acpi_child_pnpinfo_str_method(device_t cbdev, device_t child, char *buf, 865247648afSTakanori Watanabe size_t buflen) 866247648afSTakanori Watanabe { 86763600cc3SNate Lawson struct acpi_device *dinfo = device_get_ivars(child); 86892488a57SJung-uk Kim ACPI_DEVICE_INFO *adinfo; 869247648afSTakanori Watanabe 87092488a57SJung-uk Kim if (ACPI_FAILURE(AcpiGetObjectInfo(dinfo->ad_handle, &adinfo))) { 871d40c0f53SNate Lawson snprintf(buf, buflen, "unknown"); 87292488a57SJung-uk Kim return (0); 87392488a57SJung-uk Kim } 87492488a57SJung-uk Kim 875247648afSTakanori Watanabe snprintf(buf, buflen, "_HID=%s _UID=%lu", 876247648afSTakanori Watanabe (adinfo->Valid & ACPI_VALID_HID) ? 87792488a57SJung-uk Kim adinfo->HardwareId.String : "none", 87863600cc3SNate Lawson (adinfo->Valid & ACPI_VALID_UID) ? 87992488a57SJung-uk Kim strtoul(adinfo->UniqueId.String, NULL, 10) : 0UL); 880247648afSTakanori Watanabe AcpiOsFree(adinfo); 881247648afSTakanori Watanabe 882247648afSTakanori Watanabe return (0); 883247648afSTakanori Watanabe } 884247648afSTakanori Watanabe 885247648afSTakanori Watanabe /* 88615e32d5dSMike Smith * Handle per-device ivars 88715e32d5dSMike Smith */ 88815e32d5dSMike Smith static int 88915e32d5dSMike Smith acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 89015e32d5dSMike Smith { 89115e32d5dSMike Smith struct acpi_device *ad; 89215e32d5dSMike Smith 89315e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 8942d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 89515e32d5dSMike Smith return (ENOENT); 89615e32d5dSMike Smith } 89715e32d5dSMike Smith 898be2b1797SNate Lawson /* ACPI and ISA compatibility ivars */ 89915e32d5dSMike Smith switch(index) { 90015e32d5dSMike Smith case ACPI_IVAR_HANDLE: 90115e32d5dSMike Smith *(ACPI_HANDLE *)result = ad->ad_handle; 90215e32d5dSMike Smith break; 90315e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 90415e32d5dSMike Smith *(void **)result = ad->ad_private; 90515e32d5dSMike Smith break; 906d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 907d4b9ff91SNate Lawson *(int *)result = ad->ad_flags; 908d4b9ff91SNate Lawson break; 90932d18aa5SMike Smith case ISA_IVAR_VENDORID: 91032d18aa5SMike Smith case ISA_IVAR_SERIAL: 91132d18aa5SMike Smith case ISA_IVAR_COMPATID: 91232d18aa5SMike Smith *(int *)result = -1; 91332d18aa5SMike Smith break; 91432d18aa5SMike Smith case ISA_IVAR_LOGICALID: 91532d18aa5SMike Smith *(int *)result = acpi_isa_get_logicalid(child); 91632d18aa5SMike Smith break; 91715e32d5dSMike Smith default: 91815e32d5dSMike Smith return (ENOENT); 91915e32d5dSMike Smith } 920be2b1797SNate Lawson 92115e32d5dSMike Smith return (0); 92215e32d5dSMike Smith } 92315e32d5dSMike Smith 92415e32d5dSMike Smith static int 92515e32d5dSMike Smith acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value) 92615e32d5dSMike Smith { 92715e32d5dSMike Smith struct acpi_device *ad; 92815e32d5dSMike Smith 92915e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 9302d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 93115e32d5dSMike Smith return (ENOENT); 93215e32d5dSMike Smith } 93315e32d5dSMike Smith 93415e32d5dSMike Smith switch(index) { 93515e32d5dSMike Smith case ACPI_IVAR_HANDLE: 93615e32d5dSMike Smith ad->ad_handle = (ACPI_HANDLE)value; 93715e32d5dSMike Smith break; 93815e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 93915e32d5dSMike Smith ad->ad_private = (void *)value; 94015e32d5dSMike Smith break; 941d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 942d4b9ff91SNate Lawson ad->ad_flags = (int)value; 943d4b9ff91SNate Lawson break; 94415e32d5dSMike Smith default: 9452ab060eeSWarner Losh panic("bad ivar write request (%d)", index); 94615e32d5dSMike Smith return (ENOENT); 94715e32d5dSMike Smith } 948be2b1797SNate Lawson 94915e32d5dSMike Smith return (0); 95015e32d5dSMike Smith } 95115e32d5dSMike Smith 95215e32d5dSMike Smith /* 95315e32d5dSMike Smith * Handle child resource allocation/removal 95415e32d5dSMike Smith */ 95591233413SNate Lawson static struct resource_list * 95691233413SNate Lawson acpi_get_rlist(device_t dev, device_t child) 95715e32d5dSMike Smith { 95891233413SNate Lawson struct acpi_device *ad; 95915e32d5dSMike Smith 96091233413SNate Lawson ad = device_get_ivars(child); 96191233413SNate Lawson return (&ad->ad_rl); 96215e32d5dSMike Smith } 96315e32d5dSMike Smith 9640d484d24SJohn Baldwin static int 9650d484d24SJohn Baldwin acpi_match_resource_hint(device_t dev, int type, long value) 9660d484d24SJohn Baldwin { 9670d484d24SJohn Baldwin struct acpi_device *ad = device_get_ivars(dev); 9680d484d24SJohn Baldwin struct resource_list *rl = &ad->ad_rl; 9690d484d24SJohn Baldwin struct resource_list_entry *rle; 9700d484d24SJohn Baldwin 9710d484d24SJohn Baldwin STAILQ_FOREACH(rle, rl, link) { 9720d484d24SJohn Baldwin if (rle->type != type) 9730d484d24SJohn Baldwin continue; 9740d484d24SJohn Baldwin if (rle->start <= value && rle->end >= value) 9750d484d24SJohn Baldwin return (1); 9760d484d24SJohn Baldwin } 9770d484d24SJohn Baldwin return (0); 9780d484d24SJohn Baldwin } 9790d484d24SJohn Baldwin 9800d484d24SJohn Baldwin /* 9810d484d24SJohn Baldwin * Wire device unit numbers based on resource matches in hints. 9820d484d24SJohn Baldwin */ 9830d484d24SJohn Baldwin static void 9840d484d24SJohn Baldwin acpi_hint_device_unit(device_t acdev, device_t child, const char *name, 9850d484d24SJohn Baldwin int *unitp) 9860d484d24SJohn Baldwin { 9870d484d24SJohn Baldwin const char *s; 9880d484d24SJohn Baldwin long value; 9890d484d24SJohn Baldwin int line, matches, unit; 9900d484d24SJohn Baldwin 9910d484d24SJohn Baldwin /* 9920d484d24SJohn Baldwin * Iterate over all the hints for the devices with the specified 9930d484d24SJohn Baldwin * name to see if one's resources are a subset of this device. 9940d484d24SJohn Baldwin */ 9950d484d24SJohn Baldwin line = 0; 9960d484d24SJohn Baldwin for (;;) { 9970d484d24SJohn Baldwin if (resource_find_dev(&line, name, &unit, "at", NULL) != 0) 9980d484d24SJohn Baldwin break; 9990d484d24SJohn Baldwin 10000d484d24SJohn Baldwin /* Must have an "at" for acpi or isa. */ 10010d484d24SJohn Baldwin resource_string_value(name, unit, "at", &s); 10020d484d24SJohn Baldwin if (!(strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 || 10030d484d24SJohn Baldwin strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0)) 10040d484d24SJohn Baldwin continue; 10050d484d24SJohn Baldwin 10060d484d24SJohn Baldwin /* 10072fcd493cSJohn Baldwin * Check for matching resources. We must have at least one match. 10082fcd493cSJohn Baldwin * Since I/O and memory resources cannot be shared, if we get a 10092fcd493cSJohn Baldwin * match on either of those, ignore any mismatches in IRQs or DRQs. 10100d484d24SJohn Baldwin * 10110d484d24SJohn Baldwin * XXX: We may want to revisit this to be more lenient and wire 10120d484d24SJohn Baldwin * as long as it gets one match. 10130d484d24SJohn Baldwin */ 10140d484d24SJohn Baldwin matches = 0; 10150d484d24SJohn Baldwin if (resource_long_value(name, unit, "port", &value) == 0) { 10162fcd493cSJohn Baldwin /* 10172fcd493cSJohn Baldwin * Floppy drive controllers are notorious for having a 10182fcd493cSJohn Baldwin * wide variety of resources not all of which include the 10192fcd493cSJohn Baldwin * first port that is specified by the hint (typically 10202fcd493cSJohn Baldwin * 0x3f0) (see the comment above fdc_isa_alloc_resources() 10212fcd493cSJohn Baldwin * in fdc_isa.c). However, they do all seem to include 10222fcd493cSJohn Baldwin * port + 2 (e.g. 0x3f2) so for a floppy device, look for 10232fcd493cSJohn Baldwin * 'value + 2' in the port resources instead of the hint 10242fcd493cSJohn Baldwin * value. 10252fcd493cSJohn Baldwin */ 10262fcd493cSJohn Baldwin if (strcmp(name, "fdc") == 0) 10272fcd493cSJohn Baldwin value += 2; 10280d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IOPORT, value)) 10290d484d24SJohn Baldwin matches++; 10300d484d24SJohn Baldwin else 10310d484d24SJohn Baldwin continue; 10320d484d24SJohn Baldwin } 10330d484d24SJohn Baldwin if (resource_long_value(name, unit, "maddr", &value) == 0) { 10340d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_MEMORY, value)) 10350d484d24SJohn Baldwin matches++; 10360d484d24SJohn Baldwin else 10370d484d24SJohn Baldwin continue; 10380d484d24SJohn Baldwin } 10392fcd493cSJohn Baldwin if (matches > 0) 10402fcd493cSJohn Baldwin goto matched; 10410d484d24SJohn Baldwin if (resource_long_value(name, unit, "irq", &value) == 0) { 10420d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IRQ, value)) 10430d484d24SJohn Baldwin matches++; 10440d484d24SJohn Baldwin else 10450d484d24SJohn Baldwin continue; 10460d484d24SJohn Baldwin } 10470d484d24SJohn Baldwin if (resource_long_value(name, unit, "drq", &value) == 0) { 10480d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_DRQ, value)) 10490d484d24SJohn Baldwin matches++; 10500d484d24SJohn Baldwin else 10510d484d24SJohn Baldwin continue; 10520d484d24SJohn Baldwin } 10530d484d24SJohn Baldwin 10542fcd493cSJohn Baldwin matched: 10550d484d24SJohn Baldwin if (matches > 0) { 10560d484d24SJohn Baldwin /* We have a winner! */ 10570d484d24SJohn Baldwin *unitp = unit; 10580d484d24SJohn Baldwin break; 10590d484d24SJohn Baldwin } 10600d484d24SJohn Baldwin } 10610d484d24SJohn Baldwin } 10620d484d24SJohn Baldwin 1063adad4744SNate Lawson /* 1064adad4744SNate Lawson * Pre-allocate/manage all memory and IO resources. Since rman can't handle 1065adad4744SNate Lawson * duplicates, we merge any in the sysresource attach routine. 1066adad4744SNate Lawson */ 1067adad4744SNate Lawson static int 1068adad4744SNate Lawson acpi_sysres_alloc(device_t dev) 1069adad4744SNate Lawson { 1070adad4744SNate Lawson struct resource *res; 1071adad4744SNate Lawson struct resource_list *rl; 1072adad4744SNate Lawson struct resource_list_entry *rle; 1073adad4744SNate Lawson struct rman *rm; 1074da72d149SNate Lawson char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 1075da72d149SNate Lawson device_t *children; 1076da72d149SNate Lawson int child_count, i; 1077da72d149SNate Lawson 1078da72d149SNate Lawson /* 1079da72d149SNate Lawson * Probe/attach any sysresource devices. This would be unnecessary if we 1080da72d149SNate Lawson * had multi-pass probe/attach. 1081da72d149SNate Lawson */ 1082da72d149SNate Lawson if (device_get_children(dev, &children, &child_count) != 0) 1083da72d149SNate Lawson return (ENXIO); 1084da72d149SNate Lawson for (i = 0; i < child_count; i++) { 1085da72d149SNate Lawson if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) 1086da72d149SNate Lawson device_probe_and_attach(children[i]); 1087da72d149SNate Lawson } 1088da72d149SNate Lawson free(children, M_TEMP); 1089adad4744SNate Lawson 1090adad4744SNate Lawson rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 1091be1bf4d2SPoul-Henning Kamp STAILQ_FOREACH(rle, rl, link) { 1092adad4744SNate Lawson if (rle->res != NULL) { 1093adad4744SNate Lawson device_printf(dev, "duplicate resource for %lx\n", rle->start); 1094adad4744SNate Lawson continue; 1095adad4744SNate Lawson } 1096adad4744SNate Lawson 1097adad4744SNate Lawson /* Only memory and IO resources are valid here. */ 1098adad4744SNate Lawson switch (rle->type) { 1099adad4744SNate Lawson case SYS_RES_IOPORT: 1100adad4744SNate Lawson rm = &acpi_rman_io; 1101adad4744SNate Lawson break; 1102adad4744SNate Lawson case SYS_RES_MEMORY: 1103adad4744SNate Lawson rm = &acpi_rman_mem; 1104adad4744SNate Lawson break; 1105adad4744SNate Lawson default: 1106adad4744SNate Lawson continue; 1107adad4744SNate Lawson } 1108adad4744SNate Lawson 1109adad4744SNate Lawson /* Pre-allocate resource and add to our rman pool. */ 1110adad4744SNate Lawson res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, rle->type, 1111adad4744SNate Lawson &rle->rid, rle->start, rle->start + rle->count - 1, rle->count, 0); 1112adad4744SNate Lawson if (res != NULL) { 1113adad4744SNate Lawson rman_manage_region(rm, rman_get_start(res), rman_get_end(res)); 1114adad4744SNate Lawson rle->res = res; 1115adad4744SNate Lawson } else 1116adad4744SNate Lawson device_printf(dev, "reservation of %lx, %lx (%d) failed\n", 1117adad4744SNate Lawson rle->start, rle->count, rle->type); 1118adad4744SNate Lawson } 1119adad4744SNate Lawson return (0); 1120adad4744SNate Lawson } 1121adad4744SNate Lawson 1122ea233199SJohn Baldwin static char *pcilink_ids[] = { "PNP0C0F", NULL }; 1123ea233199SJohn Baldwin static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 1124ea233199SJohn Baldwin 1125ea233199SJohn Baldwin /* 1126ea233199SJohn Baldwin * Reserve declared resources for devices found during attach once system 1127ea233199SJohn Baldwin * resources have been allocated. 1128ea233199SJohn Baldwin */ 1129ea233199SJohn Baldwin static void 1130ea233199SJohn Baldwin acpi_reserve_resources(device_t dev) 1131ea233199SJohn Baldwin { 1132ea233199SJohn Baldwin struct resource_list_entry *rle; 1133ea233199SJohn Baldwin struct resource_list *rl; 1134ea233199SJohn Baldwin struct acpi_device *ad; 1135ea233199SJohn Baldwin struct acpi_softc *sc; 1136ea233199SJohn Baldwin device_t *children; 1137ea233199SJohn Baldwin int child_count, i; 1138ea233199SJohn Baldwin 1139ea233199SJohn Baldwin sc = device_get_softc(dev); 1140ea233199SJohn Baldwin if (device_get_children(dev, &children, &child_count) != 0) 1141ea233199SJohn Baldwin return; 1142ea233199SJohn Baldwin for (i = 0; i < child_count; i++) { 1143ea233199SJohn Baldwin ad = device_get_ivars(children[i]); 1144ea233199SJohn Baldwin rl = &ad->ad_rl; 1145ea233199SJohn Baldwin 1146ea233199SJohn Baldwin /* Don't reserve system resources. */ 1147ea233199SJohn Baldwin if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) 1148ea233199SJohn Baldwin continue; 1149ea233199SJohn Baldwin 1150ea233199SJohn Baldwin STAILQ_FOREACH(rle, rl, link) { 1151ea233199SJohn Baldwin /* 1152ea233199SJohn Baldwin * Don't reserve IRQ resources. There are many sticky things 1153ea233199SJohn Baldwin * to get right otherwise (e.g. IRQs for psm, atkbd, and HPET 1154ea233199SJohn Baldwin * when using legacy routing). 1155ea233199SJohn Baldwin */ 1156ea233199SJohn Baldwin if (rle->type == SYS_RES_IRQ) 1157ea233199SJohn Baldwin continue; 1158ea233199SJohn Baldwin 1159ea233199SJohn Baldwin /* 11600d81cf12SJohn Baldwin * Don't reserve the resource if it is already allocated. 11610d81cf12SJohn Baldwin * The acpi_ec(4) driver can allocate its resources early 11620d81cf12SJohn Baldwin * if ECDT is present. 11630d81cf12SJohn Baldwin */ 11640d81cf12SJohn Baldwin if (rle->res != NULL) 11650d81cf12SJohn Baldwin continue; 11660d81cf12SJohn Baldwin 11670d81cf12SJohn Baldwin /* 1168ea233199SJohn Baldwin * Try to reserve the resource from our parent. If this 1169ea233199SJohn Baldwin * fails because the resource is a system resource, just 1170ea233199SJohn Baldwin * let it be. The resource range is already reserved so 1171ea233199SJohn Baldwin * that other devices will not use it. If the driver 1172ea233199SJohn Baldwin * needs to allocate the resource, then 1173ea233199SJohn Baldwin * acpi_alloc_resource() will sub-alloc from the system 1174ea233199SJohn Baldwin * resource. 1175ea233199SJohn Baldwin */ 1176ea233199SJohn Baldwin resource_list_reserve(rl, dev, children[i], rle->type, &rle->rid, 1177ea233199SJohn Baldwin rle->start, rle->end, rle->count, 0); 1178ea233199SJohn Baldwin } 1179ea233199SJohn Baldwin } 1180ea233199SJohn Baldwin free(children, M_TEMP); 1181ea233199SJohn Baldwin sc->acpi_resources_reserved = 1; 1182ea233199SJohn Baldwin } 1183ea233199SJohn Baldwin 1184ea233199SJohn Baldwin static int 1185ea233199SJohn Baldwin acpi_set_resource(device_t dev, device_t child, int type, int rid, 1186ea233199SJohn Baldwin u_long start, u_long count) 1187ea233199SJohn Baldwin { 1188ea233199SJohn Baldwin struct acpi_softc *sc = device_get_softc(dev); 1189ea233199SJohn Baldwin struct acpi_device *ad = device_get_ivars(child); 1190ea233199SJohn Baldwin struct resource_list *rl = &ad->ad_rl; 1191ea233199SJohn Baldwin u_long end; 1192ea233199SJohn Baldwin 1193ea233199SJohn Baldwin /* Ignore IRQ resources for PCI link devices. */ 1194ea233199SJohn Baldwin if (type == SYS_RES_IRQ && ACPI_ID_PROBE(dev, child, pcilink_ids) != NULL) 1195ea233199SJohn Baldwin return (0); 1196ea233199SJohn Baldwin 1197ea233199SJohn Baldwin /* If the resource is already allocated, fail. */ 1198ea233199SJohn Baldwin if (resource_list_busy(rl, type, rid)) 1199ea233199SJohn Baldwin return (EBUSY); 1200ea233199SJohn Baldwin 1201ea233199SJohn Baldwin /* If the resource is already reserved, release it. */ 1202ea233199SJohn Baldwin if (resource_list_reserved(rl, type, rid)) 1203ea233199SJohn Baldwin resource_list_unreserve(rl, dev, child, type, rid); 1204ea233199SJohn Baldwin 1205ea233199SJohn Baldwin /* Add the resource. */ 1206ea233199SJohn Baldwin end = (start + count - 1); 1207ea233199SJohn Baldwin resource_list_add(rl, type, rid, start, end, count); 1208ea233199SJohn Baldwin 1209ea233199SJohn Baldwin /* Don't reserve resources until the system resources are allocated. */ 1210ea233199SJohn Baldwin if (!sc->acpi_resources_reserved) 1211ea233199SJohn Baldwin return (0); 1212ea233199SJohn Baldwin 1213ea233199SJohn Baldwin /* Don't reserve system resources. */ 1214ea233199SJohn Baldwin if (ACPI_ID_PROBE(dev, child, sysres_ids) != NULL) 1215ea233199SJohn Baldwin return (0); 1216ea233199SJohn Baldwin 1217ea233199SJohn Baldwin /* 1218ea233199SJohn Baldwin * Don't reserve IRQ resources. There are many sticky things to 1219ea233199SJohn Baldwin * get right otherwise (e.g. IRQs for psm, atkbd, and HPET when 1220ea233199SJohn Baldwin * using legacy routing). 1221ea233199SJohn Baldwin */ 1222ea233199SJohn Baldwin if (type == SYS_RES_IRQ) 1223ea233199SJohn Baldwin return (0); 1224ea233199SJohn Baldwin 1225ea233199SJohn Baldwin /* 1226ea233199SJohn Baldwin * Reserve the resource. 1227ea233199SJohn Baldwin * 1228ea233199SJohn Baldwin * XXX: Ignores failure for now. Failure here is probably a 1229ea233199SJohn Baldwin * BIOS/firmware bug? 1230ea233199SJohn Baldwin */ 1231ea233199SJohn Baldwin resource_list_reserve(rl, dev, child, type, &rid, start, end, count, 0); 1232ea233199SJohn Baldwin return (0); 1233ea233199SJohn Baldwin } 1234ea233199SJohn Baldwin 123515e32d5dSMike Smith static struct resource * 123615e32d5dSMike Smith acpi_alloc_resource(device_t bus, device_t child, int type, int *rid, 123715e32d5dSMike Smith u_long start, u_long end, u_long count, u_int flags) 123815e32d5dSMike Smith { 123995957f62SJohn Baldwin ACPI_RESOURCE ares; 1240ea233199SJohn Baldwin struct acpi_device *ad; 124191233413SNate Lawson struct resource_list_entry *rle; 1242ea233199SJohn Baldwin struct resource_list *rl; 124391233413SNate Lawson struct resource *res; 1244ea233199SJohn Baldwin int isdefault = (start == 0UL && end == ~0UL); 124515e2f34fSNate Lawson 124691233413SNate Lawson /* 1247ea233199SJohn Baldwin * First attempt at allocating the resource. For direct children, 1248ea233199SJohn Baldwin * use resource_list_alloc() to handle reserved resources. For 1249f6133e71SJohn Baldwin * other devices, pass the request up to our parent. 125091233413SNate Lawson */ 1251ea233199SJohn Baldwin if (bus == device_get_parent(child)) { 1252ea233199SJohn Baldwin ad = device_get_ivars(child); 1253ea233199SJohn Baldwin rl = &ad->ad_rl; 125491233413SNate Lawson 1255397c30a8SJohn Baldwin /* 1256ea233199SJohn Baldwin * Simulate the behavior of the ISA bus for direct children 1257ea233199SJohn Baldwin * devices. That is, if a non-default range is specified for 1258ea233199SJohn Baldwin * a resource that doesn't exist, use bus_set_resource() to 1259ea233199SJohn Baldwin * add the resource before allocating it. Note that these 1260ea233199SJohn Baldwin * resources will not be reserved. 1261397c30a8SJohn Baldwin */ 1262ea233199SJohn Baldwin if (!isdefault && resource_list_find(rl, type, *rid) == NULL) 1263ea233199SJohn Baldwin resource_list_add(rl, type, *rid, start, end, count); 1264ea233199SJohn Baldwin res = resource_list_alloc(rl, bus, child, type, rid, start, end, count, 1265ea233199SJohn Baldwin flags); 1266ea233199SJohn Baldwin if (res != NULL && type == SYS_RES_IRQ) { 126795957f62SJohn Baldwin /* 126895957f62SJohn Baldwin * Since bus_config_intr() takes immediate effect, we cannot 126995957f62SJohn Baldwin * configure the interrupt associated with a device when we 127095957f62SJohn Baldwin * parse the resources but have to defer it until a driver 127195957f62SJohn Baldwin * actually allocates the interrupt via bus_alloc_resource(). 127295957f62SJohn Baldwin * 127395957f62SJohn Baldwin * XXX: Should we handle the lookup failing? 127495957f62SJohn Baldwin */ 127595957f62SJohn Baldwin if (ACPI_SUCCESS(acpi_lookup_irq_resource(child, *rid, res, &ares))) 127695957f62SJohn Baldwin acpi_config_intr(child, &ares); 127795957f62SJohn Baldwin } 127815e2f34fSNate Lawson 1279ea233199SJohn Baldwin /* 1280ea233199SJohn Baldwin * If this is an allocation of the "default" range for a given 1281ea233199SJohn Baldwin * RID, fetch the exact bounds for this resource from the 1282ea233199SJohn Baldwin * resource list entry to try to allocate the range from the 1283ea233199SJohn Baldwin * system resource regions. 1284ea233199SJohn Baldwin */ 1285ea233199SJohn Baldwin if (res == NULL && isdefault) { 1286ea233199SJohn Baldwin rle = resource_list_find(rl, type, *rid); 1287ea233199SJohn Baldwin if (rle != NULL) { 1288ea233199SJohn Baldwin start = rle->start; 1289ea233199SJohn Baldwin end = rle->end; 1290ea233199SJohn Baldwin count = rle->count; 1291ea233199SJohn Baldwin } 1292ea233199SJohn Baldwin } 1293ea233199SJohn Baldwin } else 1294ea233199SJohn Baldwin res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid, 1295ea233199SJohn Baldwin start, end, count, flags); 1296ea233199SJohn Baldwin 1297ea233199SJohn Baldwin /* 1298ea233199SJohn Baldwin * If the first attempt failed and this is an allocation of a 1299ea233199SJohn Baldwin * specific range, try to satisfy the request via a suballocation 13005d0d779bSJohn Baldwin * from our system resource regions. 1301ea233199SJohn Baldwin */ 13025d0d779bSJohn Baldwin if (res == NULL && start + count - 1 == end) 13035d0d779bSJohn Baldwin res = acpi_alloc_sysres(child, type, rid, start, end, count, flags); 13045d0d779bSJohn Baldwin return (res); 13055d0d779bSJohn Baldwin } 13065d0d779bSJohn Baldwin 13075d0d779bSJohn Baldwin /* 13085d0d779bSJohn Baldwin * Attempt to allocate a specific resource range from the system 13095d0d779bSJohn Baldwin * resource ranges. Note that we only handle memory and I/O port 13105d0d779bSJohn Baldwin * system resources. 13115d0d779bSJohn Baldwin */ 13125d0d779bSJohn Baldwin struct resource * 13135d0d779bSJohn Baldwin acpi_alloc_sysres(device_t child, int type, int *rid, u_long start, u_long end, 13145d0d779bSJohn Baldwin u_long count, u_int flags) 13155d0d779bSJohn Baldwin { 13165d0d779bSJohn Baldwin struct rman *rm; 13175d0d779bSJohn Baldwin struct resource *res; 13185d0d779bSJohn Baldwin 1319ea233199SJohn Baldwin switch (type) { 1320ea233199SJohn Baldwin case SYS_RES_IOPORT: 1321ea233199SJohn Baldwin rm = &acpi_rman_io; 1322ea233199SJohn Baldwin break; 1323ea233199SJohn Baldwin case SYS_RES_MEMORY: 1324ea233199SJohn Baldwin rm = &acpi_rman_mem; 1325ea233199SJohn Baldwin break; 1326ea233199SJohn Baldwin default: 1327ea233199SJohn Baldwin return (NULL); 1328ea233199SJohn Baldwin } 1329ea233199SJohn Baldwin 13305d0d779bSJohn Baldwin KASSERT(start + count - 1 == end, ("wildcard resource range")); 1331ea233199SJohn Baldwin res = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 1332ea233199SJohn Baldwin child); 1333ea233199SJohn Baldwin if (res == NULL) 1334ea233199SJohn Baldwin return (NULL); 1335ea233199SJohn Baldwin 1336ea233199SJohn Baldwin rman_set_rid(res, *rid); 1337ea233199SJohn Baldwin 1338ea233199SJohn Baldwin /* If requested, activate the resource using the parent's method. */ 1339ea233199SJohn Baldwin if (flags & RF_ACTIVE) 1340ea233199SJohn Baldwin if (bus_activate_resource(child, type, *rid, res) != 0) { 1341ea233199SJohn Baldwin rman_release_resource(res); 1342ea233199SJohn Baldwin return (NULL); 1343ea233199SJohn Baldwin } 1344ea233199SJohn Baldwin 134591233413SNate Lawson return (res); 134615e32d5dSMike Smith } 134715e32d5dSMike Smith 134815e32d5dSMike Smith static int 1349049dc0d1SJohn Baldwin acpi_is_resource_managed(int type, struct resource *r) 135015e32d5dSMike Smith { 135115e32d5dSMike Smith 1352397c30a8SJohn Baldwin /* We only handle memory and IO resources through rman. */ 1353397c30a8SJohn Baldwin switch (type) { 1354397c30a8SJohn Baldwin case SYS_RES_IOPORT: 1355049dc0d1SJohn Baldwin return (rman_is_region_manager(r, &acpi_rman_io)); 1356397c30a8SJohn Baldwin case SYS_RES_MEMORY: 1357049dc0d1SJohn Baldwin return (rman_is_region_manager(r, &acpi_rman_mem)); 1358397c30a8SJohn Baldwin } 1359049dc0d1SJohn Baldwin return (0); 1360049dc0d1SJohn Baldwin } 1361049dc0d1SJohn Baldwin 1362049dc0d1SJohn Baldwin static int 1363049dc0d1SJohn Baldwin acpi_adjust_resource(device_t bus, device_t child, int type, struct resource *r, 1364049dc0d1SJohn Baldwin u_long start, u_long end) 1365049dc0d1SJohn Baldwin { 1366049dc0d1SJohn Baldwin 1367049dc0d1SJohn Baldwin if (acpi_is_resource_managed(type, r)) 1368049dc0d1SJohn Baldwin return (rman_adjust_resource(r, start, end)); 1369049dc0d1SJohn Baldwin return (bus_generic_adjust_resource(bus, child, type, r, start, end)); 1370049dc0d1SJohn Baldwin } 1371049dc0d1SJohn Baldwin 1372049dc0d1SJohn Baldwin static int 1373049dc0d1SJohn Baldwin acpi_release_resource(device_t bus, device_t child, int type, int rid, 1374049dc0d1SJohn Baldwin struct resource *r) 1375049dc0d1SJohn Baldwin { 1376049dc0d1SJohn Baldwin int ret; 1377397c30a8SJohn Baldwin 137891233413SNate Lawson /* 1379397c30a8SJohn Baldwin * If this resource belongs to one of our internal managers, 1380ea233199SJohn Baldwin * deactivate it and release it to the local pool. 138191233413SNate Lawson */ 1382049dc0d1SJohn Baldwin if (acpi_is_resource_managed(type, r)) { 138391233413SNate Lawson if (rman_get_flags(r) & RF_ACTIVE) { 138491233413SNate Lawson ret = bus_deactivate_resource(child, type, rid, r); 138591233413SNate Lawson if (ret != 0) 138691233413SNate Lawson return (ret); 138715e32d5dSMike Smith } 1388ea233199SJohn Baldwin return (rman_release_resource(r)); 1389ea233199SJohn Baldwin } 1390ea233199SJohn Baldwin 1391ea233199SJohn Baldwin return (bus_generic_rl_release_resource(bus, child, type, rid, r)); 1392ea233199SJohn Baldwin } 139315e32d5dSMike Smith 13948b28b622SNate Lawson static void 13958b28b622SNate Lawson acpi_delete_resource(device_t bus, device_t child, int type, int rid) 13968b28b622SNate Lawson { 13978b28b622SNate Lawson struct resource_list *rl; 13988b28b622SNate Lawson 13998b28b622SNate Lawson rl = acpi_get_rlist(bus, child); 1400ea233199SJohn Baldwin if (resource_list_busy(rl, type, rid)) { 1401ea233199SJohn Baldwin device_printf(bus, "delete_resource: Resource still owned by child" 1402ea233199SJohn Baldwin " (type=%d, rid=%d)\n", type, rid); 1403ea233199SJohn Baldwin return; 1404ea233199SJohn Baldwin } 1405ea233199SJohn Baldwin resource_list_unreserve(rl, bus, child, type, rid); 14068b28b622SNate Lawson resource_list_delete(rl, type, rid); 14078b28b622SNate Lawson } 14088b28b622SNate Lawson 1409dc750869SNate Lawson /* Allocate an IO port or memory resource, given its GAS. */ 1410e1c4bf3fSNate Lawson int 1411e1c4bf3fSNate Lawson acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas, 1412907b6777SNate Lawson struct resource **res, u_int flags) 1413dc750869SNate Lawson { 1414e1c4bf3fSNate Lawson int error, res_type; 1415dc750869SNate Lawson 1416e1c4bf3fSNate Lawson error = ENOMEM; 14178f118e25SNate Lawson if (type == NULL || rid == NULL || gas == NULL || res == NULL) 1418e1c4bf3fSNate Lawson return (EINVAL); 1419dc750869SNate Lawson 14208f118e25SNate Lawson /* We only support memory and IO spaces. */ 14212be4e471SJung-uk Kim switch (gas->SpaceId) { 1422dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_MEMORY: 1423e1c4bf3fSNate Lawson res_type = SYS_RES_MEMORY; 1424dc750869SNate Lawson break; 1425dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_IO: 1426e1c4bf3fSNate Lawson res_type = SYS_RES_IOPORT; 1427dc750869SNate Lawson break; 1428dc750869SNate Lawson default: 1429e1c4bf3fSNate Lawson return (EOPNOTSUPP); 1430dc750869SNate Lawson } 1431dc750869SNate Lawson 14322fe912dfSNate Lawson /* 1433f45fc848SNate Lawson * If the register width is less than 8, assume the BIOS author means 1434f45fc848SNate Lawson * it is a bit field and just allocate a byte. 14352fe912dfSNate Lawson */ 14362be4e471SJung-uk Kim if (gas->BitWidth && gas->BitWidth < 8) 14372be4e471SJung-uk Kim gas->BitWidth = 8; 14382fe912dfSNate Lawson 14398f118e25SNate Lawson /* Validate the address after we're sure we support the space. */ 14402be4e471SJung-uk Kim if (gas->Address == 0 || gas->BitWidth == 0) 14418f118e25SNate Lawson return (EINVAL); 14428f118e25SNate Lawson 1443e1c4bf3fSNate Lawson bus_set_resource(dev, res_type, *rid, gas->Address, 14442be4e471SJung-uk Kim gas->BitWidth / 8); 1445907b6777SNate Lawson *res = bus_alloc_resource_any(dev, res_type, rid, RF_ACTIVE | flags); 1446e1c4bf3fSNate Lawson if (*res != NULL) { 1447e1c4bf3fSNate Lawson *type = res_type; 1448e1c4bf3fSNate Lawson error = 0; 1449ca2c69c8SNate Lawson } else 1450ca2c69c8SNate Lawson bus_delete_resource(dev, res_type, *rid); 1451ca2c69c8SNate Lawson 1452e1c4bf3fSNate Lawson return (error); 1453dc750869SNate Lawson } 1454dc750869SNate Lawson 1455c796e27bSNate Lawson /* Probe _HID and _CID for compatible ISA PNP ids. */ 14561e4925e8SNate Lawson static uint32_t 145732d18aa5SMike Smith acpi_isa_get_logicalid(device_t dev) 1458bc0f2195SMike Smith { 14591e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 1460bc0f2195SMike Smith ACPI_HANDLE h; 146192488a57SJung-uk Kim uint32_t pnpid; 146232d18aa5SMike Smith 1463b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 146432d18aa5SMike Smith 14656fca9360SNate Lawson /* Fetch and validate the HID. */ 146692488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 146792488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 146892488a57SJung-uk Kim return_VALUE (0); 146932d18aa5SMike Smith 147092488a57SJung-uk Kim pnpid = (devinfo->Valid & ACPI_VALID_HID) != 0 && 147192488a57SJung-uk Kim devinfo->HardwareId.Length >= ACPI_EISAID_STRING_SIZE ? 147292488a57SJung-uk Kim PNP_EISAID(devinfo->HardwareId.String) : 0; 147392488a57SJung-uk Kim AcpiOsFree(devinfo); 1474be2b1797SNate Lawson 147532d18aa5SMike Smith return_VALUE (pnpid); 147632d18aa5SMike Smith } 147732d18aa5SMike Smith 14781e4925e8SNate Lawson static int 14791e4925e8SNate Lawson acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count) 1480b2566207STakanori Watanabe { 14811e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 1482*8ef1a331SJung-uk Kim ACPI_PNP_DEVICE_ID *ids; 1483b2566207STakanori Watanabe ACPI_HANDLE h; 14841e4925e8SNate Lawson uint32_t *pnpid; 148592488a57SJung-uk Kim int i, valid; 1486b2566207STakanori Watanabe 1487b2566207STakanori Watanabe ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1488b2566207STakanori Watanabe 14891e4925e8SNate Lawson pnpid = cids; 1490bd189fe7SNate Lawson 14911e4925e8SNate Lawson /* Fetch and validate the CID */ 149292488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 149392488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 149492488a57SJung-uk Kim return_VALUE (0); 1495b2566207STakanori Watanabe 149692488a57SJung-uk Kim if ((devinfo->Valid & ACPI_VALID_CID) == 0) { 149792488a57SJung-uk Kim AcpiOsFree(devinfo); 149892488a57SJung-uk Kim return_VALUE (0); 1499b2566207STakanori Watanabe } 1500b2566207STakanori Watanabe 150192488a57SJung-uk Kim if (devinfo->CompatibleIdList.Count < count) 150292488a57SJung-uk Kim count = devinfo->CompatibleIdList.Count; 150392488a57SJung-uk Kim ids = devinfo->CompatibleIdList.Ids; 150492488a57SJung-uk Kim for (i = 0, valid = 0; i < count; i++) 150592488a57SJung-uk Kim if (ids[i].Length >= ACPI_EISAID_STRING_SIZE && 150692488a57SJung-uk Kim strncmp(ids[i].String, "PNP", 3) == 0) { 150792488a57SJung-uk Kim *pnpid++ = PNP_EISAID(ids[i].String); 150892488a57SJung-uk Kim valid++; 150992488a57SJung-uk Kim } 151092488a57SJung-uk Kim AcpiOsFree(devinfo); 151192488a57SJung-uk Kim 15121e4925e8SNate Lawson return_VALUE (valid); 15131e4925e8SNate Lawson } 1514b2566207STakanori Watanabe 1515ce619b2eSNate Lawson static char * 1516ce619b2eSNate Lawson acpi_device_id_probe(device_t bus, device_t dev, char **ids) 1517ce619b2eSNate Lawson { 1518ce619b2eSNate Lawson ACPI_HANDLE h; 151992488a57SJung-uk Kim ACPI_OBJECT_TYPE t; 1520ce619b2eSNate Lawson int i; 1521ce619b2eSNate Lawson 1522ce619b2eSNate Lawson h = acpi_get_handle(dev); 152392488a57SJung-uk Kim if (ids == NULL || h == NULL) 152492488a57SJung-uk Kim return (NULL); 152592488a57SJung-uk Kim t = acpi_get_type(dev); 152692488a57SJung-uk Kim if (t != ACPI_TYPE_DEVICE && t != ACPI_TYPE_PROCESSOR) 1527ce619b2eSNate Lawson return (NULL); 1528ce619b2eSNate Lawson 1529ce619b2eSNate Lawson /* Try to match one of the array of IDs with a HID or CID. */ 1530ce619b2eSNate Lawson for (i = 0; ids[i] != NULL; i++) { 1531ce619b2eSNate Lawson if (acpi_MatchHid(h, ids[i])) 1532ce619b2eSNate Lawson return (ids[i]); 1533ce619b2eSNate Lawson } 1534ce619b2eSNate Lawson return (NULL); 1535ce619b2eSNate Lawson } 1536ce619b2eSNate Lawson 1537ce619b2eSNate Lawson static ACPI_STATUS 1538ce619b2eSNate Lawson acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname, 1539ce619b2eSNate Lawson ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret) 1540ce619b2eSNate Lawson { 1541ce619b2eSNate Lawson ACPI_HANDLE h; 1542ce619b2eSNate Lawson 1543df8d2a32SNate Lawson if (dev == NULL) 1544df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1545df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1546ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1547ce619b2eSNate Lawson return (AcpiEvaluateObject(h, pathname, parameters, ret)); 1548ce619b2eSNate Lawson } 1549ce619b2eSNate Lawson 155062508c53SJohn Baldwin int 155110ce62b9SNate Lawson acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate) 155210ce62b9SNate Lawson { 155310ce62b9SNate Lawson struct acpi_softc *sc; 155410ce62b9SNate Lawson ACPI_HANDLE handle; 155510ce62b9SNate Lawson ACPI_STATUS status; 155610ce62b9SNate Lawson char sxd[8]; 155710ce62b9SNate Lawson 155810ce62b9SNate Lawson handle = acpi_get_handle(dev); 155910ce62b9SNate Lawson 156010ce62b9SNate Lawson /* 156110ce62b9SNate Lawson * XXX If we find these devices, don't try to power them down. 156210ce62b9SNate Lawson * The serial and IRDA ports on my T23 hang the system when 156310ce62b9SNate Lawson * set to D3 and it appears that such legacy devices may 156410ce62b9SNate Lawson * need special handling in their drivers. 156510ce62b9SNate Lawson */ 1566a7a3177fSJung-uk Kim if (dstate == NULL || handle == NULL || 156710ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0500") || 156810ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0501") || 156910ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0502") || 157010ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0510") || 157110ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0511")) 157210ce62b9SNate Lawson return (ENXIO); 157310ce62b9SNate Lawson 157410ce62b9SNate Lawson /* 1575a7a3177fSJung-uk Kim * Override next state with the value from _SxD, if present. 1576a7a3177fSJung-uk Kim * Note illegal _S0D is evaluated because some systems expect this. 157710ce62b9SNate Lawson */ 1578a7a3177fSJung-uk Kim sc = device_get_softc(bus); 157910ce62b9SNate Lawson snprintf(sxd, sizeof(sxd), "_S%dD", sc->acpi_sstate); 158010ce62b9SNate Lawson status = acpi_GetInteger(handle, sxd, dstate); 1581a7a3177fSJung-uk Kim if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 1582a7a3177fSJung-uk Kim device_printf(dev, "failed to get %s on %s: %s\n", sxd, 1583a7a3177fSJung-uk Kim acpi_name(handle), AcpiFormatException(status)); 1584a7a3177fSJung-uk Kim return (ENXIO); 158510ce62b9SNate Lawson } 158610ce62b9SNate Lawson 1587a7a3177fSJung-uk Kim return (0); 158810ce62b9SNate Lawson } 158910ce62b9SNate Lawson 1590df8d2a32SNate Lawson /* Callback arg for our implementation of walking the namespace. */ 1591df8d2a32SNate Lawson struct acpi_device_scan_ctx { 1592df8d2a32SNate Lawson acpi_scan_cb_t user_fn; 1593df8d2a32SNate Lawson void *arg; 1594df8d2a32SNate Lawson ACPI_HANDLE parent; 1595df8d2a32SNate Lawson }; 1596df8d2a32SNate Lawson 1597ce619b2eSNate Lawson static ACPI_STATUS 1598df8d2a32SNate Lawson acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *arg, void **retval) 1599df8d2a32SNate Lawson { 1600df8d2a32SNate Lawson struct acpi_device_scan_ctx *ctx; 1601df8d2a32SNate Lawson device_t dev, old_dev; 1602df8d2a32SNate Lawson ACPI_STATUS status; 1603df8d2a32SNate Lawson ACPI_OBJECT_TYPE type; 1604df8d2a32SNate Lawson 1605df8d2a32SNate Lawson /* 1606df8d2a32SNate Lawson * Skip this device if we think we'll have trouble with it or it is 1607df8d2a32SNate Lawson * the parent where the scan began. 1608df8d2a32SNate Lawson */ 1609df8d2a32SNate Lawson ctx = (struct acpi_device_scan_ctx *)arg; 1610df8d2a32SNate Lawson if (acpi_avoid(h) || h == ctx->parent) 1611df8d2a32SNate Lawson return (AE_OK); 1612df8d2a32SNate Lawson 1613df8d2a32SNate Lawson /* If this is not a valid device type (e.g., a method), skip it. */ 1614df8d2a32SNate Lawson if (ACPI_FAILURE(AcpiGetType(h, &type))) 1615df8d2a32SNate Lawson return (AE_OK); 1616df8d2a32SNate Lawson if (type != ACPI_TYPE_DEVICE && type != ACPI_TYPE_PROCESSOR && 1617df8d2a32SNate Lawson type != ACPI_TYPE_THERMAL && type != ACPI_TYPE_POWER) 1618df8d2a32SNate Lawson return (AE_OK); 1619df8d2a32SNate Lawson 1620df8d2a32SNate Lawson /* 1621df8d2a32SNate Lawson * Call the user function with the current device. If it is unchanged 1622df8d2a32SNate Lawson * afterwards, return. Otherwise, we update the handle to the new dev. 1623df8d2a32SNate Lawson */ 1624df8d2a32SNate Lawson old_dev = acpi_get_device(h); 1625df8d2a32SNate Lawson dev = old_dev; 1626df8d2a32SNate Lawson status = ctx->user_fn(h, &dev, level, ctx->arg); 1627df8d2a32SNate Lawson if (ACPI_FAILURE(status) || old_dev == dev) 1628df8d2a32SNate Lawson return (status); 1629df8d2a32SNate Lawson 1630df8d2a32SNate Lawson /* Remove the old child and its connection to the handle. */ 1631df8d2a32SNate Lawson if (old_dev != NULL) { 1632df8d2a32SNate Lawson device_delete_child(device_get_parent(old_dev), old_dev); 1633df8d2a32SNate Lawson AcpiDetachData(h, acpi_fake_objhandler); 1634df8d2a32SNate Lawson } 1635df8d2a32SNate Lawson 1636df8d2a32SNate Lawson /* Recreate the handle association if the user created a device. */ 1637df8d2a32SNate Lawson if (dev != NULL) 1638df8d2a32SNate Lawson AcpiAttachData(h, acpi_fake_objhandler, dev); 1639df8d2a32SNate Lawson 1640df8d2a32SNate Lawson return (AE_OK); 1641df8d2a32SNate Lawson } 1642df8d2a32SNate Lawson 1643df8d2a32SNate Lawson static ACPI_STATUS 1644df8d2a32SNate Lawson acpi_device_scan_children(device_t bus, device_t dev, int max_depth, 1645df8d2a32SNate Lawson acpi_scan_cb_t user_fn, void *arg) 1646ce619b2eSNate Lawson { 1647ce619b2eSNate Lawson ACPI_HANDLE h; 1648df8d2a32SNate Lawson struct acpi_device_scan_ctx ctx; 1649ce619b2eSNate Lawson 1650df8d2a32SNate Lawson if (acpi_disabled("children")) 1651df8d2a32SNate Lawson return (AE_OK); 1652df8d2a32SNate Lawson 1653df8d2a32SNate Lawson if (dev == NULL) 1654df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1655df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1656ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1657df8d2a32SNate Lawson ctx.user_fn = user_fn; 1658df8d2a32SNate Lawson ctx.arg = arg; 1659df8d2a32SNate Lawson ctx.parent = h; 1660df8d2a32SNate Lawson return (AcpiWalkNamespace(ACPI_TYPE_ANY, h, max_depth, 16612272d050SJung-uk Kim acpi_device_scan_cb, NULL, &ctx, NULL)); 1662ce619b2eSNate Lawson } 1663ce619b2eSNate Lawson 166410ce62b9SNate Lawson /* 166510ce62b9SNate Lawson * Even though ACPI devices are not PCI, we use the PCI approach for setting 166610ce62b9SNate Lawson * device power states since it's close enough to ACPI. 166710ce62b9SNate Lawson */ 166810ce62b9SNate Lawson static int 1669a7a3177fSJung-uk Kim acpi_set_powerstate(device_t child, int state) 167010ce62b9SNate Lawson { 167110ce62b9SNate Lawson ACPI_HANDLE h; 167210ce62b9SNate Lawson ACPI_STATUS status; 167310ce62b9SNate Lawson 167410ce62b9SNate Lawson h = acpi_get_handle(child); 1675a0e73a12SJung-uk Kim if (state < ACPI_STATE_D0 || state > ACPI_D_STATES_MAX) 167610ce62b9SNate Lawson return (EINVAL); 167710ce62b9SNate Lawson if (h == NULL) 167810ce62b9SNate Lawson return (0); 167910ce62b9SNate Lawson 168010ce62b9SNate Lawson /* Ignore errors if the power methods aren't present. */ 168110ce62b9SNate Lawson status = acpi_pwr_switch_consumer(h, state); 1682a7a3177fSJung-uk Kim if (ACPI_SUCCESS(status)) { 1683a7a3177fSJung-uk Kim if (bootverbose) 1684a7a3177fSJung-uk Kim device_printf(child, "set ACPI power state D%d on %s\n", 1685a7a3177fSJung-uk Kim state, acpi_name(h)); 1686a7a3177fSJung-uk Kim } else if (status != AE_NOT_FOUND) 1687a7a3177fSJung-uk Kim device_printf(child, 1688a7a3177fSJung-uk Kim "failed to set ACPI power state D%d on %s: %s\n", state, 1689a7a3177fSJung-uk Kim acpi_name(h), AcpiFormatException(status)); 169010ce62b9SNate Lawson 1691a7a3177fSJung-uk Kim return (0); 169210ce62b9SNate Lawson } 169310ce62b9SNate Lawson 169432d18aa5SMike Smith static int 169532d18aa5SMike Smith acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids) 169632d18aa5SMike Smith { 16971e4925e8SNate Lawson int result, cid_count, i; 16981e4925e8SNate Lawson uint32_t lid, cids[8]; 1699bc0f2195SMike Smith 1700b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1701bc0f2195SMike Smith 1702bc0f2195SMike Smith /* 1703bc0f2195SMike Smith * ISA-style drivers attached to ACPI may persist and 1704bc0f2195SMike Smith * probe manually if we return ENOENT. We never want 1705bc0f2195SMike Smith * that to happen, so don't ever return it. 1706bc0f2195SMike Smith */ 1707bc0f2195SMike Smith result = ENXIO; 1708bc0f2195SMike Smith 1709be2b1797SNate Lawson /* Scan the supplied IDs for a match */ 1710b2566207STakanori Watanabe lid = acpi_isa_get_logicalid(child); 17111e4925e8SNate Lawson cid_count = acpi_isa_get_compatid(child, cids, 8); 1712bc0f2195SMike Smith while (ids && ids->ip_id) { 17131e4925e8SNate Lawson if (lid == ids->ip_id) { 1714bc0f2195SMike Smith result = 0; 1715bc0f2195SMike Smith goto out; 1716bc0f2195SMike Smith } 17171e4925e8SNate Lawson for (i = 0; i < cid_count; i++) { 17181e4925e8SNate Lawson if (cids[i] == ids->ip_id) { 17191e4925e8SNate Lawson result = 0; 17201e4925e8SNate Lawson goto out; 17211e4925e8SNate Lawson } 17221e4925e8SNate Lawson } 1723bc0f2195SMike Smith ids++; 1724bc0f2195SMike Smith } 1725be2b1797SNate Lawson 1726bc0f2195SMike Smith out: 17279e0dd54fSNate Lawson if (result == 0 && ids->ip_desc) 17289e0dd54fSNate Lawson device_set_desc(child, ids->ip_desc); 17299e0dd54fSNate Lawson 1730bc0f2195SMike Smith return_VALUE (result); 1731bc0f2195SMike Smith } 1732bc0f2195SMike Smith 1733d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 1734d320e05cSJohn Baldwin /* 1735d320e05cSJohn Baldwin * Look for a MCFG table. If it is present, use the settings for 1736d320e05cSJohn Baldwin * domain (segment) 0 to setup PCI config space access via the memory 1737d320e05cSJohn Baldwin * map. 1738d320e05cSJohn Baldwin */ 1739d320e05cSJohn Baldwin static void 1740d320e05cSJohn Baldwin acpi_enable_pcie(void) 1741d320e05cSJohn Baldwin { 1742d320e05cSJohn Baldwin ACPI_TABLE_HEADER *hdr; 1743d320e05cSJohn Baldwin ACPI_MCFG_ALLOCATION *alloc, *end; 1744d320e05cSJohn Baldwin ACPI_STATUS status; 1745d320e05cSJohn Baldwin 1746d320e05cSJohn Baldwin status = AcpiGetTable(ACPI_SIG_MCFG, 1, &hdr); 1747d320e05cSJohn Baldwin if (ACPI_FAILURE(status)) 1748d320e05cSJohn Baldwin return; 1749d320e05cSJohn Baldwin 1750d320e05cSJohn Baldwin end = (ACPI_MCFG_ALLOCATION *)((char *)hdr + hdr->Length); 1751d320e05cSJohn Baldwin alloc = (ACPI_MCFG_ALLOCATION *)((ACPI_TABLE_MCFG *)hdr + 1); 1752d320e05cSJohn Baldwin while (alloc < end) { 1753d320e05cSJohn Baldwin if (alloc->PciSegment == 0) { 1754d320e05cSJohn Baldwin pcie_cfgregopen(alloc->Address, alloc->StartBusNumber, 1755d320e05cSJohn Baldwin alloc->EndBusNumber); 1756d320e05cSJohn Baldwin return; 1757d320e05cSJohn Baldwin } 1758d320e05cSJohn Baldwin alloc++; 1759d320e05cSJohn Baldwin } 1760d320e05cSJohn Baldwin } 1761d320e05cSJohn Baldwin #endif 1762d320e05cSJohn Baldwin 1763bc0f2195SMike Smith /* 176433332dc2SNate Lawson * Scan all of the ACPI namespace and attach child devices. 176515e32d5dSMike Smith * 176633332dc2SNate Lawson * We should only expect to find devices in the \_PR, \_TZ, \_SI, and 176733332dc2SNate Lawson * \_SB scopes, and \_PR and \_TZ became obsolete in the ACPI 2.0 spec. 176833332dc2SNate Lawson * However, in violation of the spec, some systems place their PCI link 176933332dc2SNate Lawson * devices in \, so we have to walk the whole namespace. We check the 177033332dc2SNate Lawson * type of namespace nodes, so this should be ok. 177115e32d5dSMike Smith */ 177215e32d5dSMike Smith static void 177315e32d5dSMike Smith acpi_probe_children(device_t bus) 177415e32d5dSMike Smith { 177515e32d5dSMike Smith 1776b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 17770ae55423SMike Smith 177815e32d5dSMike Smith /* 177915e32d5dSMike Smith * Scan the namespace and insert placeholders for all the devices that 1780edc13633SNate Lawson * we find. We also probe/attach any early devices. 178115e32d5dSMike Smith * 178215e32d5dSMike Smith * Note that we use AcpiWalkNamespace rather than AcpiGetDevices because 1783be2b1797SNate Lawson * we want to create nodes for all devices, not just those that are 1784be2b1797SNate Lawson * currently present. (This assumes that we don't want to create/remove 1785be2b1797SNate Lawson * devices as they appear, which might be smarter.) 178615e32d5dSMike Smith */ 17874c1cdee6SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "namespace scan\n")); 178833332dc2SNate Lawson AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 100, acpi_probe_child, 17892272d050SJung-uk Kim NULL, bus, NULL); 179015e32d5dSMike Smith 1791adad4744SNate Lawson /* Pre-allocate resources for our rman from any sysresource devices. */ 1792adad4744SNate Lawson acpi_sysres_alloc(bus); 1793adad4744SNate Lawson 1794ea233199SJohn Baldwin /* Reserve resources already allocated to children. */ 1795ea233199SJohn Baldwin acpi_reserve_resources(bus); 1796ea233199SJohn Baldwin 1797edc13633SNate Lawson /* Create any static children by calling device identify methods. */ 1798edc13633SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n")); 1799edc13633SNate Lawson bus_generic_probe(bus); 1800edc13633SNate Lawson 18015e66b8e2SJohn Baldwin /* Probe/attach all children, created statically and from the namespace. */ 18020430ba9eSAndriy Gapon ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "acpi bus_generic_attach\n")); 180315e32d5dSMike Smith bus_generic_attach(bus); 18040ae55423SMike Smith 180588a79fc0SNate Lawson /* Attach wake sysctls. */ 18065c9ea25eSNate Lawson acpi_wake_sysctl_walk(bus); 180788a79fc0SNate Lawson 1808bc0f2195SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "done attaching children\n")); 18090ae55423SMike Smith return_VOID; 181015e32d5dSMike Smith } 181115e32d5dSMike Smith 1812b82ca9a9SNate Lawson /* 1813d227204dSJohn Baldwin * Determine the probe order for a given device. 1814b82ca9a9SNate Lawson */ 1815d227204dSJohn Baldwin static void 1816b82ca9a9SNate Lawson acpi_probe_order(ACPI_HANDLE handle, int *order) 181791233413SNate Lawson { 1818463e0f91SJohn Baldwin ACPI_OBJECT_TYPE type; 181991233413SNate Lawson 1820b82ca9a9SNate Lawson /* 1821404b0d10SJung-uk Kim * 0. CPUs 1822404b0d10SJung-uk Kim * 1. I/O port and memory system resource holders 1823404b0d10SJung-uk Kim * 2. Clocks and timers (to handle early accesses) 1824b1f9b996SAndriy Gapon * 3. Embedded controllers (to handle early accesses) 1825b1f9b996SAndriy Gapon * 4. PCI Link Devices 1826b82ca9a9SNate Lawson */ 1827463e0f91SJohn Baldwin AcpiGetType(handle, &type); 1828aa835160SAndriy Gapon if (type == ACPI_TYPE_PROCESSOR) 1829404b0d10SJung-uk Kim *order = 0; 1830404b0d10SJung-uk Kim else if (acpi_MatchHid(handle, "PNP0C01") || 1831404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0C02")) 183291233413SNate Lawson *order = 1; 1833404b0d10SJung-uk Kim else if (acpi_MatchHid(handle, "PNP0100") || 1834404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0103") || 1835404b0d10SJung-uk Kim acpi_MatchHid(handle, "PNP0B00")) 183691233413SNate Lawson *order = 2; 1837aa835160SAndriy Gapon else if (acpi_MatchHid(handle, "PNP0C09")) 1838b460c6f8SJohn Baldwin *order = 3; 1839aa835160SAndriy Gapon else if (acpi_MatchHid(handle, "PNP0C0F")) 1840aa835160SAndriy Gapon *order = 4; 184191233413SNate Lawson } 184291233413SNate Lawson 184315e32d5dSMike Smith /* 184415e32d5dSMike Smith * Evaluate a child device and determine whether we might attach a device to 184515e32d5dSMike Smith * it. 184615e32d5dSMike Smith */ 184715e32d5dSMike Smith static ACPI_STATUS 184815e32d5dSMike Smith acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 184915e32d5dSMike Smith { 18505a77b11bSJung-uk Kim struct acpi_prw_data prw; 185115e32d5dSMike Smith ACPI_OBJECT_TYPE type; 1852858a52f4SMitsuru IWASAKI ACPI_HANDLE h; 185333332dc2SNate Lawson device_t bus, child; 1854495a4144SJung-uk Kim char *handle_str; 1855e4cd9dcfSJohn Baldwin int order; 185615e32d5dSMike Smith 1857b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 18580ae55423SMike Smith 1859495a4144SJung-uk Kim if (acpi_disabled("children")) 1860495a4144SJung-uk Kim return_ACPI_STATUS (AE_OK); 1861495a4144SJung-uk Kim 1862be2b1797SNate Lawson /* Skip this device if we think we'll have trouble with it. */ 18630ae55423SMike Smith if (acpi_avoid(handle)) 18640ae55423SMike Smith return_ACPI_STATUS (AE_OK); 18650ae55423SMike Smith 186691233413SNate Lawson bus = (device_t)context; 1867b53f2771SMike Smith if (ACPI_SUCCESS(AcpiGetType(handle, &type))) { 1868495a4144SJung-uk Kim handle_str = acpi_name(handle); 186915e32d5dSMike Smith switch (type) { 187015e32d5dSMike Smith case ACPI_TYPE_DEVICE: 1871495a4144SJung-uk Kim /* 1872495a4144SJung-uk Kim * Since we scan from \, be sure to skip system scope objects. 1873495a4144SJung-uk Kim * \_SB_ and \_TZ_ are defined in ACPICA as devices to work around 1874affa1826SJung-uk Kim * BIOS bugs. For example, \_SB_ is to allow \_SB_._INI to be run 1875495a4144SJung-uk Kim * during the intialization and \_TZ_ is to support Notify() on it. 1876495a4144SJung-uk Kim */ 1877495a4144SJung-uk Kim if (strcmp(handle_str, "\\_SB_") == 0 || 1878495a4144SJung-uk Kim strcmp(handle_str, "\\_TZ_") == 0) 1879495a4144SJung-uk Kim break; 18805a77b11bSJung-uk Kim if (acpi_parse_prw(handle, &prw) == 0) 18815a77b11bSJung-uk Kim AcpiSetupGpeForWake(handle, prw.gpe_handle, prw.gpe_bit); 1882183c8af3SJohn Baldwin 1883183c8af3SJohn Baldwin /* 1884183c8af3SJohn Baldwin * Ignore devices that do not have a _HID or _CID. They should 1885183c8af3SJohn Baldwin * be discovered by other buses (e.g. the PCI bus driver). 1886183c8af3SJohn Baldwin */ 1887183c8af3SJohn Baldwin if (!acpi_has_hid(handle)) 1888183c8af3SJohn Baldwin break; 1889495a4144SJung-uk Kim /* FALLTHROUGH */ 189015e32d5dSMike Smith case ACPI_TYPE_PROCESSOR: 189115e32d5dSMike Smith case ACPI_TYPE_THERMAL: 189215e32d5dSMike Smith case ACPI_TYPE_POWER: 189333332dc2SNate Lawson /* 1894463e0f91SJohn Baldwin * Create a placeholder device for this node. Sort the 1895463e0f91SJohn Baldwin * placeholder so that the probe/attach passes will run 1896463e0f91SJohn Baldwin * breadth-first. Orders less than ACPI_DEV_BASE_ORDER 1897463e0f91SJohn Baldwin * are reserved for special objects (i.e., system 1898b1f9b996SAndriy Gapon * resources). 189915e32d5dSMike Smith */ 190033332dc2SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "scanning '%s'\n", handle_str)); 1901404b0d10SJung-uk Kim order = level * 10 + ACPI_DEV_BASE_ORDER; 1902da72d149SNate Lawson acpi_probe_order(handle, &order); 1903e4cd9dcfSJohn Baldwin child = BUS_ADD_CHILD(bus, order, NULL, -1); 1904bc0f2195SMike Smith if (child == NULL) 1905bc0f2195SMike Smith break; 190659a890e6SNate Lawson 190759a890e6SNate Lawson /* Associate the handle with the device_t and vice versa. */ 190815e32d5dSMike Smith acpi_set_handle(child, handle); 190959a890e6SNate Lawson AcpiAttachData(handle, acpi_fake_objhandler, child); 1910bc0f2195SMike Smith 1911bc0f2195SMike Smith /* 1912b519f9d6SMike Smith * Check that the device is present. If it's not present, 1913b519f9d6SMike Smith * leave it disabled (so that we have a device_t attached to 1914b519f9d6SMike Smith * the handle, but we don't probe it). 1915893f750aSNate Lawson * 1916893f750aSNate Lawson * XXX PCI link devices sometimes report "present" but not 1917893f750aSNate Lawson * "functional" (i.e. if disabled). Go ahead and probe them 1918893f750aSNate Lawson * anyway since we may enable them later. 1919b519f9d6SMike Smith */ 1920858a52f4SMitsuru IWASAKI if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) { 1921858a52f4SMitsuru IWASAKI /* Never disable PCI link devices. */ 1922858a52f4SMitsuru IWASAKI if (acpi_MatchHid(handle, "PNP0C0F")) 1923858a52f4SMitsuru IWASAKI break; 1924858a52f4SMitsuru IWASAKI /* 1925858a52f4SMitsuru IWASAKI * Docking stations should remain enabled since the system 1926858a52f4SMitsuru IWASAKI * may be undocked at boot. 1927858a52f4SMitsuru IWASAKI */ 1928858a52f4SMitsuru IWASAKI if (ACPI_SUCCESS(AcpiGetHandle(handle, "_DCK", &h))) 1929858a52f4SMitsuru IWASAKI break; 1930858a52f4SMitsuru IWASAKI 1931b519f9d6SMike Smith device_disable(child); 1932b519f9d6SMike Smith break; 1933b519f9d6SMike Smith } 1934b519f9d6SMike Smith 1935b519f9d6SMike Smith /* 1936bc0f2195SMike Smith * Get the device's resource settings and attach them. 1937bc0f2195SMike Smith * Note that if the device has _PRS but no _CRS, we need 1938bc0f2195SMike Smith * to decide when it's appropriate to try to configure the 1939bc0f2195SMike Smith * device. Ignore the return value here; it's OK for the 1940bc0f2195SMike Smith * device not to have any resources. 1941bc0f2195SMike Smith */ 194272ad60adSNate Lawson acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL); 19430ae55423SMike Smith break; 194415e32d5dSMike Smith } 194515e32d5dSMike Smith } 1946be2b1797SNate Lawson 19470ae55423SMike Smith return_ACPI_STATUS (AE_OK); 194815e32d5dSMike Smith } 194915e32d5dSMike Smith 195059a890e6SNate Lawson /* 195159a890e6SNate Lawson * AcpiAttachData() requires an object handler but never uses it. This is a 195259a890e6SNate Lawson * placeholder object handler so we can store a device_t in an ACPI_HANDLE. 195359a890e6SNate Lawson */ 195459a890e6SNate Lawson void 195592488a57SJung-uk Kim acpi_fake_objhandler(ACPI_HANDLE h, void *data) 195659a890e6SNate Lawson { 195759a890e6SNate Lawson } 195859a890e6SNate Lawson 195915e32d5dSMike Smith static void 196015e32d5dSMike Smith acpi_shutdown_final(void *arg, int howto) 196115e32d5dSMike Smith { 19622d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 196371804adcSJung-uk Kim register_t intr; 1964d33f4987STakanori Watanabe ACPI_STATUS status; 1965eeb3a05fSNate Lawson 1966eeb3a05fSNate Lawson /* 196780f0e4c2SNate Lawson * XXX Shutdown code should only run on the BSP (cpuid 0). 196880f0e4c2SNate Lawson * Some chipsets do not power off the system correctly if called from 196980f0e4c2SNate Lawson * an AP. 1970eeb3a05fSNate Lawson */ 1971eeb3a05fSNate Lawson if ((howto & RB_POWEROFF) != 0) { 1972904bf0c2SNate Lawson status = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1973904bf0c2SNate Lawson if (ACPI_FAILURE(status)) { 19742d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 1975904bf0c2SNate Lawson AcpiFormatException(status)); 1976904bf0c2SNate Lawson return; 1977904bf0c2SNate Lawson } 19782d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Powering system off\n"); 197971804adcSJung-uk Kim intr = intr_disable(); 19801df130f1SJung-uk Kim status = AcpiEnterSleepState(ACPI_STATE_S5); 198171804adcSJung-uk Kim if (ACPI_FAILURE(status)) { 198271804adcSJung-uk Kim intr_restore(intr); 19832d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - %s\n", 19842d0c82e8SJung-uk Kim AcpiFormatException(status)); 198571804adcSJung-uk Kim } else { 198615e32d5dSMike Smith DELAY(1000000); 198771804adcSJung-uk Kim intr_restore(intr); 19882d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - timeout\n"); 198915e32d5dSMike Smith } 1990ac731af5SJung-uk Kim } else if ((howto & RB_HALT) == 0 && sc->acpi_handle_reboot) { 1991d85e6785SNate Lawson /* Reboot using the reset register. */ 1992ac731af5SJung-uk Kim status = AcpiReset(); 1993ac731af5SJung-uk Kim if (ACPI_SUCCESS(status)) { 199487a500cdSNate Lawson DELAY(1000000); 19952d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - timeout\n"); 1996ac731af5SJung-uk Kim } else if (status != AE_NOT_EXIST) 1997ac731af5SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - %s\n", 1998ac731af5SJung-uk Kim AcpiFormatException(status)); 1999d85e6785SNate Lawson } else if (sc->acpi_do_disable && panicstr == NULL) { 2000d85e6785SNate Lawson /* 2001d85e6785SNate Lawson * Only disable ACPI if the user requested. On some systems, writing 2002d85e6785SNate Lawson * the disable value to SMI_CMD hangs the system. 2003d85e6785SNate Lawson */ 20042d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Shutting down\n"); 200580f0e4c2SNate Lawson AcpiTerminate(); 200680f0e4c2SNate Lawson } 200715e32d5dSMike Smith } 200815e32d5dSMike Smith 200913d4f7baSMitsuru IWASAKI static void 201013d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(struct acpi_softc *sc) 201113d4f7baSMitsuru IWASAKI { 201213d4f7baSMitsuru IWASAKI static int first_time = 1; 201313d4f7baSMitsuru IWASAKI 201413d4f7baSMitsuru IWASAKI /* Enable and clear fixed events and install handlers. */ 20152be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 201659ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 201713d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON, 201833febf93SNate Lawson acpi_event_power_button_sleep, sc); 2019be2b1797SNate Lawson if (first_time) 20206c0e8467SNate Lawson device_printf(sc->acpi_dev, "Power Button (fixed)\n"); 202113d4f7baSMitsuru IWASAKI } 20222be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 202359ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 202413d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON, 202533febf93SNate Lawson acpi_event_sleep_button_sleep, sc); 2026be2b1797SNate Lawson if (first_time) 20276c0e8467SNate Lawson device_printf(sc->acpi_dev, "Sleep Button (fixed)\n"); 202813d4f7baSMitsuru IWASAKI } 202913d4f7baSMitsuru IWASAKI 203013d4f7baSMitsuru IWASAKI first_time = 0; 203113d4f7baSMitsuru IWASAKI } 203213d4f7baSMitsuru IWASAKI 203315e32d5dSMike Smith /* 2034c5ba0be4SMike Smith * Returns true if the device is actually present and should 2035c5ba0be4SMike Smith * be attached to. This requires the present, enabled, UI-visible 2036c5ba0be4SMike Smith * and diagnostics-passed bits to be set. 2037c5ba0be4SMike Smith */ 2038c5ba0be4SMike Smith BOOLEAN 2039c5ba0be4SMike Smith acpi_DeviceIsPresent(device_t dev) 2040c5ba0be4SMike Smith { 20411e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 2042c5ba0be4SMike Smith ACPI_HANDLE h; 204392488a57SJung-uk Kim BOOLEAN present; 2044c5ba0be4SMike Smith 204592488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 204692488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2047c5ba0be4SMike Smith return (FALSE); 2048be2b1797SNate Lawson 2049be2b1797SNate Lawson /* If no _STA method, must be present */ 205092488a57SJung-uk Kim present = (devinfo->Valid & ACPI_VALID_STA) == 0 || 205192488a57SJung-uk Kim ACPI_DEVICE_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE; 2052be2b1797SNate Lawson 205392488a57SJung-uk Kim AcpiOsFree(devinfo); 205492488a57SJung-uk Kim return (present); 2055c5ba0be4SMike Smith } 2056c5ba0be4SMike Smith 2057c5ba0be4SMike Smith /* 2058b53f2771SMike Smith * Returns true if the battery is actually present and inserted. 2059b53f2771SMike Smith */ 2060b53f2771SMike Smith BOOLEAN 2061b53f2771SMike Smith acpi_BatteryIsPresent(device_t dev) 2062b53f2771SMike Smith { 20631e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 2064b53f2771SMike Smith ACPI_HANDLE h; 206592488a57SJung-uk Kim BOOLEAN present; 2066b53f2771SMike Smith 206792488a57SJung-uk Kim if ((h = acpi_get_handle(dev)) == NULL || 206892488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2069b53f2771SMike Smith return (FALSE); 2070be2b1797SNate Lawson 2071be2b1797SNate Lawson /* If no _STA method, must be present */ 207292488a57SJung-uk Kim present = (devinfo->Valid & ACPI_VALID_STA) == 0 || 207392488a57SJung-uk Kim ACPI_BATTERY_PRESENT(devinfo->CurrentStatus) ? TRUE : FALSE; 2074be2b1797SNate Lawson 207592488a57SJung-uk Kim AcpiOsFree(devinfo); 207692488a57SJung-uk Kim return (present); 2077b53f2771SMike Smith } 2078b53f2771SMike Smith 2079b53f2771SMike Smith /* 2080183c8af3SJohn Baldwin * Returns true if a device has at least one valid device ID. 2081183c8af3SJohn Baldwin */ 2082183c8af3SJohn Baldwin static BOOLEAN 2083183c8af3SJohn Baldwin acpi_has_hid(ACPI_HANDLE h) 2084183c8af3SJohn Baldwin { 2085183c8af3SJohn Baldwin ACPI_DEVICE_INFO *devinfo; 2086183c8af3SJohn Baldwin BOOLEAN ret; 2087183c8af3SJohn Baldwin 2088183c8af3SJohn Baldwin if (h == NULL || 2089183c8af3SJohn Baldwin ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 2090183c8af3SJohn Baldwin return (FALSE); 2091183c8af3SJohn Baldwin 2092183c8af3SJohn Baldwin ret = FALSE; 2093183c8af3SJohn Baldwin if ((devinfo->Valid & ACPI_VALID_HID) != 0) 2094183c8af3SJohn Baldwin ret = TRUE; 2095183c8af3SJohn Baldwin else if ((devinfo->Valid & ACPI_VALID_CID) != 0) 2096183c8af3SJohn Baldwin if (devinfo->CompatibleIdList.Count > 0) 2097183c8af3SJohn Baldwin ret = TRUE; 2098183c8af3SJohn Baldwin 2099183c8af3SJohn Baldwin AcpiOsFree(devinfo); 2100183c8af3SJohn Baldwin return (ret); 2101183c8af3SJohn Baldwin } 2102183c8af3SJohn Baldwin 2103183c8af3SJohn Baldwin /* 210491233413SNate Lawson * Match a HID string against a handle 210515e32d5dSMike Smith */ 21063c4c08dcSAlexander Motin BOOLEAN 2107ce619b2eSNate Lawson acpi_MatchHid(ACPI_HANDLE h, const char *hid) 210815e32d5dSMike Smith { 21091e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 211092488a57SJung-uk Kim BOOLEAN ret; 211192488a57SJung-uk Kim int i; 211292488a57SJung-uk Kim 211392488a57SJung-uk Kim if (hid == NULL || h == NULL || 211492488a57SJung-uk Kim ACPI_FAILURE(AcpiGetObjectInfo(h, &devinfo))) 211592488a57SJung-uk Kim return (FALSE); 211615e32d5dSMike Smith 21171e4925e8SNate Lawson ret = FALSE; 2118c59c9a8eSJohn Baldwin if ((devinfo->Valid & ACPI_VALID_HID) != 0 && 211992488a57SJung-uk Kim strcmp(hid, devinfo->HardwareId.String) == 0) 21201e4925e8SNate Lawson ret = TRUE; 212192488a57SJung-uk Kim else if ((devinfo->Valid & ACPI_VALID_CID) != 0) 212292488a57SJung-uk Kim for (i = 0; i < devinfo->CompatibleIdList.Count; i++) { 212392488a57SJung-uk Kim if (strcmp(hid, devinfo->CompatibleIdList.Ids[i].String) == 0) { 21241e4925e8SNate Lawson ret = TRUE; 21251e4925e8SNate Lawson break; 21261e4925e8SNate Lawson } 21271e4925e8SNate Lawson } 2128be2b1797SNate Lawson 212992488a57SJung-uk Kim AcpiOsFree(devinfo); 21301e4925e8SNate Lawson return (ret); 213115e32d5dSMike Smith } 213215e32d5dSMike Smith 213315e32d5dSMike Smith /* 2134c5ba0be4SMike Smith * Return the handle of a named object within our scope, ie. that of (parent) 2135c5ba0be4SMike Smith * or one if its parents. 2136c5ba0be4SMike Smith */ 2137c5ba0be4SMike Smith ACPI_STATUS 2138c5ba0be4SMike Smith acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result) 2139c5ba0be4SMike Smith { 2140c5ba0be4SMike Smith ACPI_HANDLE r; 2141c5ba0be4SMike Smith ACPI_STATUS status; 2142c5ba0be4SMike Smith 2143be2b1797SNate Lawson /* Walk back up the tree to the root */ 2144c5ba0be4SMike Smith for (;;) { 2145be2b1797SNate Lawson status = AcpiGetHandle(parent, path, &r); 2146be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2147c5ba0be4SMike Smith *result = r; 2148c5ba0be4SMike Smith return (AE_OK); 2149c5ba0be4SMike Smith } 2150bee4aa4aSNate Lawson /* XXX Return error here? */ 2151c5ba0be4SMike Smith if (status != AE_NOT_FOUND) 2152c5ba0be4SMike Smith return (AE_OK); 2153b53f2771SMike Smith if (ACPI_FAILURE(AcpiGetParent(parent, &r))) 2154c5ba0be4SMike Smith return (AE_NOT_FOUND); 2155c5ba0be4SMike Smith parent = r; 2156c5ba0be4SMike Smith } 2157c5ba0be4SMike Smith } 2158c5ba0be4SMike Smith 2159c5ba0be4SMike Smith /* 2160c5ba0be4SMike Smith * Allocate a buffer with a preset data size. 2161c5ba0be4SMike Smith */ 2162c5ba0be4SMike Smith ACPI_BUFFER * 2163c5ba0be4SMike Smith acpi_AllocBuffer(int size) 2164c5ba0be4SMike Smith { 2165c5ba0be4SMike Smith ACPI_BUFFER *buf; 2166c5ba0be4SMike Smith 2167c5ba0be4SMike Smith if ((buf = malloc(size + sizeof(*buf), M_ACPIDEV, M_NOWAIT)) == NULL) 2168c5ba0be4SMike Smith return (NULL); 2169c5ba0be4SMike Smith buf->Length = size; 2170c5ba0be4SMike Smith buf->Pointer = (void *)(buf + 1); 2171c5ba0be4SMike Smith return (buf); 2172c5ba0be4SMike Smith } 2173c5ba0be4SMike Smith 2174c310653eSNate Lawson ACPI_STATUS 2175cc58e4eeSNate Lawson acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number) 2176c310653eSNate Lawson { 2177c310653eSNate Lawson ACPI_OBJECT arg1; 2178c310653eSNate Lawson ACPI_OBJECT_LIST args; 2179c310653eSNate Lawson 2180c310653eSNate Lawson arg1.Type = ACPI_TYPE_INTEGER; 2181c310653eSNate Lawson arg1.Integer.Value = number; 2182c310653eSNate Lawson args.Count = 1; 2183c310653eSNate Lawson args.Pointer = &arg1; 2184c310653eSNate Lawson 2185c310653eSNate Lawson return (AcpiEvaluateObject(handle, path, &args, NULL)); 2186c310653eSNate Lawson } 2187c310653eSNate Lawson 2188c5ba0be4SMike Smith /* 2189c5ba0be4SMike Smith * Evaluate a path that should return an integer. 2190c5ba0be4SMike Smith */ 2191c5ba0be4SMike Smith ACPI_STATUS 2192cc58e4eeSNate Lawson acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number) 2193c5ba0be4SMike Smith { 2194be2b1797SNate Lawson ACPI_STATUS status; 2195c5ba0be4SMike Smith ACPI_BUFFER buf; 2196c573e654SMitsuru IWASAKI ACPI_OBJECT param; 2197c5ba0be4SMike Smith 2198c5ba0be4SMike Smith if (handle == NULL) 2199c5ba0be4SMike Smith handle = ACPI_ROOT_OBJECT; 22000c7da7acSJohn Baldwin 22010c7da7acSJohn Baldwin /* 22020c7da7acSJohn Baldwin * Assume that what we've been pointed at is an Integer object, or 22030c7da7acSJohn Baldwin * a method that will return an Integer. 22040c7da7acSJohn Baldwin */ 2205c5ba0be4SMike Smith buf.Pointer = ¶m; 2206c5ba0be4SMike Smith buf.Length = sizeof(param); 2207be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2208be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2209be2b1797SNate Lawson if (param.Type == ACPI_TYPE_INTEGER) 2210c5ba0be4SMike Smith *number = param.Integer.Value; 2211be2b1797SNate Lawson else 2212be2b1797SNate Lawson status = AE_TYPE; 2213c5ba0be4SMike Smith } 22140c7da7acSJohn Baldwin 22150c7da7acSJohn Baldwin /* 22160c7da7acSJohn Baldwin * In some applications, a method that's expected to return an Integer 22170c7da7acSJohn Baldwin * may instead return a Buffer (probably to simplify some internal 22180c7da7acSJohn Baldwin * arithmetic). We'll try to fetch whatever it is, and if it's a Buffer, 22190c7da7acSJohn Baldwin * convert it into an Integer as best we can. 22200c7da7acSJohn Baldwin * 22210c7da7acSJohn Baldwin * This is a hack. 22220c7da7acSJohn Baldwin */ 2223be2b1797SNate Lawson if (status == AE_BUFFER_OVERFLOW) { 2224b53f2771SMike Smith if ((buf.Pointer = AcpiOsAllocate(buf.Length)) == NULL) { 2225be2b1797SNate Lawson status = AE_NO_MEMORY; 22260c7da7acSJohn Baldwin } else { 2227be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2228be2b1797SNate Lawson if (ACPI_SUCCESS(status)) 2229be2b1797SNate Lawson status = acpi_ConvertBufferToInteger(&buf, number); 22300c7da7acSJohn Baldwin AcpiOsFree(buf.Pointer); 22310c7da7acSJohn Baldwin } 2232f97739daSNate Lawson } 2233be2b1797SNate Lawson return (status); 2234c5ba0be4SMike Smith } 2235c5ba0be4SMike Smith 2236c573e654SMitsuru IWASAKI ACPI_STATUS 2237cc58e4eeSNate Lawson acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number) 2238c573e654SMitsuru IWASAKI { 2239c573e654SMitsuru IWASAKI ACPI_OBJECT *p; 2240dba55fa2SNate Lawson UINT8 *val; 2241c573e654SMitsuru IWASAKI int i; 2242c573e654SMitsuru IWASAKI 2243c573e654SMitsuru IWASAKI p = (ACPI_OBJECT *)bufp->Pointer; 2244c573e654SMitsuru IWASAKI if (p->Type == ACPI_TYPE_INTEGER) { 2245c573e654SMitsuru IWASAKI *number = p->Integer.Value; 2246c573e654SMitsuru IWASAKI return (AE_OK); 2247c573e654SMitsuru IWASAKI } 2248c573e654SMitsuru IWASAKI if (p->Type != ACPI_TYPE_BUFFER) 2249c573e654SMitsuru IWASAKI return (AE_TYPE); 2250c573e654SMitsuru IWASAKI if (p->Buffer.Length > sizeof(int)) 2251c573e654SMitsuru IWASAKI return (AE_BAD_DATA); 2252be2b1797SNate Lawson 2253c573e654SMitsuru IWASAKI *number = 0; 2254dba55fa2SNate Lawson val = p->Buffer.Pointer; 2255c573e654SMitsuru IWASAKI for (i = 0; i < p->Buffer.Length; i++) 2256dba55fa2SNate Lawson *number += val[i] << (i * 8); 2257c573e654SMitsuru IWASAKI return (AE_OK); 2258c573e654SMitsuru IWASAKI } 2259c573e654SMitsuru IWASAKI 2260c5ba0be4SMike Smith /* 2261c5ba0be4SMike Smith * Iterate over the elements of an a package object, calling the supplied 2262c5ba0be4SMike Smith * function for each element. 2263c5ba0be4SMike Smith * 2264c5ba0be4SMike Smith * XXX possible enhancement might be to abort traversal on error. 2265c5ba0be4SMike Smith */ 2266c5ba0be4SMike Smith ACPI_STATUS 2267be2b1797SNate Lawson acpi_ForeachPackageObject(ACPI_OBJECT *pkg, 2268be2b1797SNate Lawson void (*func)(ACPI_OBJECT *comp, void *arg), void *arg) 2269c5ba0be4SMike Smith { 2270c5ba0be4SMike Smith ACPI_OBJECT *comp; 2271c5ba0be4SMike Smith int i; 2272c5ba0be4SMike Smith 2273be2b1797SNate Lawson if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 2274c5ba0be4SMike Smith return (AE_BAD_PARAMETER); 2275c5ba0be4SMike Smith 2276be2b1797SNate Lawson /* Iterate over components */ 2277be2b1797SNate Lawson i = 0; 2278be2b1797SNate Lawson comp = pkg->Package.Elements; 2279be2b1797SNate Lawson for (; i < pkg->Package.Count; i++, comp++) 2280c5ba0be4SMike Smith func(comp, arg); 2281c5ba0be4SMike Smith 2282c5ba0be4SMike Smith return (AE_OK); 2283c5ba0be4SMike Smith } 2284c5ba0be4SMike Smith 22856f69255bSMike Smith /* 22866f69255bSMike Smith * Find the (index)th resource object in a set. 22876f69255bSMike Smith */ 22886f69255bSMike Smith ACPI_STATUS 22896d63101aSMike Smith acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp) 22906f69255bSMike Smith { 22916d63101aSMike Smith ACPI_RESOURCE *rp; 22926f69255bSMike Smith int i; 22936f69255bSMike Smith 22946d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 22956f69255bSMike Smith i = index; 22966d63101aSMike Smith while (i-- > 0) { 2297be2b1797SNate Lawson /* Range check */ 22986d63101aSMike Smith if (rp > (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 22996f69255bSMike Smith return (AE_BAD_PARAMETER); 2300be2b1797SNate Lawson 2301be2b1797SNate Lawson /* Check for terminator */ 2302e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 23036d63101aSMike Smith return (AE_NOT_FOUND); 2304abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 23056f69255bSMike Smith } 23066f69255bSMike Smith if (resp != NULL) 23076d63101aSMike Smith *resp = rp; 2308be2b1797SNate Lawson 23096d63101aSMike Smith return (AE_OK); 23106d63101aSMike Smith } 23116d63101aSMike Smith 23126d63101aSMike Smith /* 23136d63101aSMike Smith * Append an ACPI_RESOURCE to an ACPI_BUFFER. 23146d63101aSMike Smith * 23156d63101aSMike Smith * Given a pointer to an ACPI_RESOURCE structure, expand the ACPI_BUFFER 23166d63101aSMike Smith * provided to contain it. If the ACPI_BUFFER is empty, allocate a sensible 23176d63101aSMike Smith * backing block. If the ACPI_RESOURCE is NULL, return an empty set of 23186d63101aSMike Smith * resources. 23196d63101aSMike Smith */ 23206d63101aSMike Smith #define ACPI_INITIAL_RESOURCE_BUFFER_SIZE 512 23216d63101aSMike Smith 23226d63101aSMike Smith ACPI_STATUS 23236d63101aSMike Smith acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res) 23246d63101aSMike Smith { 23256d63101aSMike Smith ACPI_RESOURCE *rp; 23266d63101aSMike Smith void *newp; 23276d63101aSMike Smith 2328be2b1797SNate Lawson /* Initialise the buffer if necessary. */ 23296d63101aSMike Smith if (buf->Pointer == NULL) { 23306d63101aSMike Smith buf->Length = ACPI_INITIAL_RESOURCE_BUFFER_SIZE; 23316d63101aSMike Smith if ((buf->Pointer = AcpiOsAllocate(buf->Length)) == NULL) 23326d63101aSMike Smith return (AE_NO_MEMORY); 23336d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 2334e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 23356d63101aSMike Smith rp->Length = 0; 23366d63101aSMike Smith } 23376d63101aSMike Smith if (res == NULL) 23386d63101aSMike Smith return (AE_OK); 23396d63101aSMike Smith 23406d63101aSMike Smith /* 23416d63101aSMike Smith * Scan the current buffer looking for the terminator. 23426d63101aSMike Smith * This will either find the terminator or hit the end 23436d63101aSMike Smith * of the buffer and return an error. 23446d63101aSMike Smith */ 23456d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 23466d63101aSMike Smith for (;;) { 2347be2b1797SNate Lawson /* Range check, don't go outside the buffer */ 23486d63101aSMike Smith if (rp >= (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 23496d63101aSMike Smith return (AE_BAD_PARAMETER); 2350e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 23516d63101aSMike Smith break; 2352abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 23536d63101aSMike Smith } 23546d63101aSMike Smith 23556d63101aSMike Smith /* 23566d63101aSMike Smith * Check the size of the buffer and expand if required. 23576d63101aSMike Smith * 23586d63101aSMike Smith * Required size is: 23596d63101aSMike Smith * size of existing resources before terminator + 23606d63101aSMike Smith * size of new resource and header + 23616d63101aSMike Smith * size of terminator. 23626d63101aSMike Smith * 23636d63101aSMike Smith * Note that this loop should really only run once, unless 23646d63101aSMike Smith * for some reason we are stuffing a *really* huge resource. 23656d63101aSMike Smith */ 23666d63101aSMike Smith while ((((u_int8_t *)rp - (u_int8_t *)buf->Pointer) + 2367e8d472a7SJung-uk Kim res->Length + ACPI_RS_SIZE_NO_DATA + 2368e8d472a7SJung-uk Kim ACPI_RS_SIZE_MIN) >= buf->Length) { 23696d63101aSMike Smith if ((newp = AcpiOsAllocate(buf->Length * 2)) == NULL) 23706d63101aSMike Smith return (AE_NO_MEMORY); 23716d63101aSMike Smith bcopy(buf->Pointer, newp, buf->Length); 2372a692219dSMike Smith rp = (ACPI_RESOURCE *)((u_int8_t *)newp + 2373a692219dSMike Smith ((u_int8_t *)rp - (u_int8_t *)buf->Pointer)); 23746d63101aSMike Smith AcpiOsFree(buf->Pointer); 23756d63101aSMike Smith buf->Pointer = newp; 23766d63101aSMike Smith buf->Length += buf->Length; 23776d63101aSMike Smith } 23786d63101aSMike Smith 2379be2b1797SNate Lawson /* Insert the new resource. */ 2380e8d472a7SJung-uk Kim bcopy(res, rp, res->Length + ACPI_RS_SIZE_NO_DATA); 23816d63101aSMike Smith 2382be2b1797SNate Lawson /* And add the terminator. */ 2383abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 2384e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 23856d63101aSMike Smith rp->Length = 0; 23866d63101aSMike Smith 23876f69255bSMike Smith return (AE_OK); 23886f69255bSMike Smith } 2389c5ba0be4SMike Smith 2390da14ac9fSJohn Baldwin /* 2391da14ac9fSJohn Baldwin * Set interrupt model. 2392da14ac9fSJohn Baldwin */ 2393da14ac9fSJohn Baldwin ACPI_STATUS 2394da14ac9fSJohn Baldwin acpi_SetIntrModel(int model) 2395da14ac9fSJohn Baldwin { 2396da14ac9fSJohn Baldwin 2397c310653eSNate Lawson return (acpi_SetInteger(ACPI_ROOT_OBJECT, "_PIC", model)); 2398da14ac9fSJohn Baldwin } 2399da14ac9fSJohn Baldwin 240000a30448SNate Lawson /* 2401d95e7f5aSJohn Baldwin * Walk subtables of a table and call a callback routine for each 2402d95e7f5aSJohn Baldwin * subtable. The caller should provide the first subtable and a 2403d95e7f5aSJohn Baldwin * pointer to the end of the table. This can be used to walk tables 2404d95e7f5aSJohn Baldwin * such as MADT and SRAT that use subtable entries. 2405d95e7f5aSJohn Baldwin */ 2406d95e7f5aSJohn Baldwin void 2407d95e7f5aSJohn Baldwin acpi_walk_subtables(void *first, void *end, acpi_subtable_handler *handler, 2408d95e7f5aSJohn Baldwin void *arg) 2409d95e7f5aSJohn Baldwin { 2410d95e7f5aSJohn Baldwin ACPI_SUBTABLE_HEADER *entry; 2411d95e7f5aSJohn Baldwin 2412d95e7f5aSJohn Baldwin for (entry = first; (void *)entry < end; ) { 2413d95e7f5aSJohn Baldwin /* Avoid an infinite loop if we hit a bogus entry. */ 2414d95e7f5aSJohn Baldwin if (entry->Length < sizeof(ACPI_SUBTABLE_HEADER)) 2415d95e7f5aSJohn Baldwin return; 2416d95e7f5aSJohn Baldwin 2417d95e7f5aSJohn Baldwin handler(entry, arg); 2418d95e7f5aSJohn Baldwin entry = ACPI_ADD_PTR(ACPI_SUBTABLE_HEADER, entry, entry->Length); 2419d95e7f5aSJohn Baldwin } 2420d95e7f5aSJohn Baldwin } 2421d95e7f5aSJohn Baldwin 2422d95e7f5aSJohn Baldwin /* 242300a30448SNate Lawson * DEPRECATED. This interface has serious deficiencies and will be 242400a30448SNate Lawson * removed. 242500a30448SNate Lawson * 242600a30448SNate Lawson * Immediately enter the sleep state. In the old model, acpiconf(8) ran 242700a30448SNate Lawson * rc.suspend and rc.resume so we don't have to notify devd(8) to do this. 242800a30448SNate Lawson */ 242900a30448SNate Lawson ACPI_STATUS 243000a30448SNate Lawson acpi_SetSleepState(struct acpi_softc *sc, int state) 243100a30448SNate Lawson { 243200a30448SNate Lawson static int once; 243300a30448SNate Lawson 243400a30448SNate Lawson if (!once) { 24352d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 243600a30448SNate Lawson "warning: acpi_SetSleepState() deprecated, need to update your software\n"); 243700a30448SNate Lawson once = 1; 243800a30448SNate Lawson } 243900a30448SNate Lawson return (acpi_EnterSleepState(sc, state)); 244000a30448SNate Lawson } 244100a30448SNate Lawson 2442c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 244300a30448SNate Lawson static void 2444ffe3f1f8SMitsuru IWASAKI acpi_sleep_force_task(void *context) 2445ffe3f1f8SMitsuru IWASAKI { 2446ffe3f1f8SMitsuru IWASAKI struct acpi_softc *sc = (struct acpi_softc *)context; 2447ffe3f1f8SMitsuru IWASAKI 2448ffe3f1f8SMitsuru IWASAKI if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 2449ffe3f1f8SMitsuru IWASAKI device_printf(sc->acpi_dev, "force sleep state S%d failed\n", 2450ffe3f1f8SMitsuru IWASAKI sc->acpi_next_sstate); 2451ffe3f1f8SMitsuru IWASAKI } 2452ffe3f1f8SMitsuru IWASAKI 2453ffe3f1f8SMitsuru IWASAKI static void 245400a30448SNate Lawson acpi_sleep_force(void *arg) 245500a30448SNate Lawson { 24562d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 245700a30448SNate Lawson 24582d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 24592d0c82e8SJung-uk Kim "suspend request timed out, forcing sleep now\n"); 2460ffe3f1f8SMitsuru IWASAKI /* 2461ffe3f1f8SMitsuru IWASAKI * XXX Suspending from callout cause the freeze in DEVICE_SUSPEND(). 2462ffe3f1f8SMitsuru IWASAKI * Suspend from acpi_task thread in stead. 2463ffe3f1f8SMitsuru IWASAKI */ 2464ffe3f1f8SMitsuru IWASAKI if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 2465ffe3f1f8SMitsuru IWASAKI acpi_sleep_force_task, sc))) 2466ffe3f1f8SMitsuru IWASAKI device_printf(sc->acpi_dev, "AcpiOsExecute() for sleeping failed\n"); 246700a30448SNate Lawson } 2468c66d2b38SJung-uk Kim #endif 246900a30448SNate Lawson 247000a30448SNate Lawson /* 247100a30448SNate Lawson * Request that the system enter the given suspend state. All /dev/apm 247200a30448SNate Lawson * devices and devd(8) will be notified. Userland then has a chance to 247300a30448SNate Lawson * save state and acknowledge the request. The system sleeps once all 247400a30448SNate Lawson * acks are in. 247500a30448SNate Lawson */ 247600a30448SNate Lawson int 247700a30448SNate Lawson acpi_ReqSleepState(struct acpi_softc *sc, int state) 247800a30448SNate Lawson { 247971f99e63SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 248000a30448SNate Lawson struct apm_clone_data *clone; 2481337744d9SJung-uk Kim ACPI_STATUS status; 248200a30448SNate Lawson 2483a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 248400a30448SNate Lawson return (EINVAL); 2485a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 2486a0e73a12SJung-uk Kim return (EOPNOTSUPP); 248700a30448SNate Lawson 2488b12bc99fSMitsuru IWASAKI /* If a suspend request is already in progress, just return. */ 2489b12bc99fSMitsuru IWASAKI if (sc->acpi_next_sstate != 0) { 2490b12bc99fSMitsuru IWASAKI return (0); 2491b12bc99fSMitsuru IWASAKI } 2492b12bc99fSMitsuru IWASAKI 2493f22377a8SMitsuru IWASAKI /* Wait until sleep is enabled. */ 2494f22377a8SMitsuru IWASAKI while (sc->acpi_sleep_disabled) { 2495f22377a8SMitsuru IWASAKI AcpiOsSleep(1000); 2496f22377a8SMitsuru IWASAKI } 2497f22377a8SMitsuru IWASAKI 2498337744d9SJung-uk Kim ACPI_LOCK(acpi); 249900a30448SNate Lawson 2500f22377a8SMitsuru IWASAKI sc->acpi_next_sstate = state; 250100a30448SNate Lawson 2502337744d9SJung-uk Kim /* S5 (soft-off) should be entered directly with no waiting. */ 2503337744d9SJung-uk Kim if (state == ACPI_STATE_S5) { 2504337744d9SJung-uk Kim ACPI_UNLOCK(acpi); 2505337744d9SJung-uk Kim status = acpi_EnterSleepState(sc, state); 2506337744d9SJung-uk Kim return (ACPI_SUCCESS(status) ? 0 : ENXIO); 2507337744d9SJung-uk Kim } 2508337744d9SJung-uk Kim 250900a30448SNate Lawson /* Record the pending state and notify all apm devices. */ 251000a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 251100a30448SNate Lawson clone->notify_status = APM_EV_NONE; 251200a30448SNate Lawson if ((clone->flags & ACPI_EVF_DEVD) == 0) { 251300a30448SNate Lawson selwakeuppri(&clone->sel_read, PZERO); 2514374d9c4dSJohn Baldwin KNOTE_LOCKED(&clone->sel_read.si_note, 0); 251500a30448SNate Lawson } 251600a30448SNate Lawson } 251700a30448SNate Lawson 25180c26519eSMitsuru IWASAKI /* If devd(8) is not running, immediately enter the sleep state. */ 2519d42f0ad8SJung-uk Kim if (!devctl_process_running()) { 25200c26519eSMitsuru IWASAKI ACPI_UNLOCK(acpi); 2521337744d9SJung-uk Kim status = acpi_EnterSleepState(sc, state); 2522337744d9SJung-uk Kim return (ACPI_SUCCESS(status) ? 0 : ENXIO); 25230c26519eSMitsuru IWASAKI } 25240c26519eSMitsuru IWASAKI 252500a30448SNate Lawson /* 252600a30448SNate Lawson * Set a timeout to fire if userland doesn't ack the suspend request 252700a30448SNate Lawson * in time. This way we still eventually go to sleep if we were 252800a30448SNate Lawson * overheating or running low on battery, even if userland is hung. 252900a30448SNate Lawson * We cancel this timeout once all userland acks are in or the 253000a30448SNate Lawson * suspend request is aborted. 253100a30448SNate Lawson */ 253200a30448SNate Lawson callout_reset(&sc->susp_force_to, 10 * hz, acpi_sleep_force, sc); 253300a30448SNate Lawson ACPI_UNLOCK(acpi); 2534d42f0ad8SJung-uk Kim 2535d42f0ad8SJung-uk Kim /* Now notify devd(8) also. */ 2536d42f0ad8SJung-uk Kim acpi_UserNotify("Suspend", ACPI_ROOT_OBJECT, state); 2537d42f0ad8SJung-uk Kim 253800a30448SNate Lawson return (0); 2539c66d2b38SJung-uk Kim #else 2540c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2541c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2542c66d2b38SJung-uk Kim #endif 254300a30448SNate Lawson } 254400a30448SNate Lawson 254500a30448SNate Lawson /* 254600a30448SNate Lawson * Acknowledge (or reject) a pending sleep state. The caller has 254700a30448SNate Lawson * prepared for suspend and is now ready for it to proceed. If the 254800a30448SNate Lawson * error argument is non-zero, it indicates suspend should be cancelled 254900a30448SNate Lawson * and gives an errno value describing why. Once all votes are in, 255000a30448SNate Lawson * we suspend the system. 255100a30448SNate Lawson */ 255200a30448SNate Lawson int 255300a30448SNate Lawson acpi_AckSleepState(struct apm_clone_data *clone, int error) 255400a30448SNate Lawson { 2555c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 255600a30448SNate Lawson struct acpi_softc *sc; 255700a30448SNate Lawson int ret, sleeping; 255800a30448SNate Lawson 255900a30448SNate Lawson /* If no pending sleep state, return an error. */ 256000a30448SNate Lawson ACPI_LOCK(acpi); 256100a30448SNate Lawson sc = clone->acpi_sc; 256200a30448SNate Lawson if (sc->acpi_next_sstate == 0) { 256300a30448SNate Lawson ACPI_UNLOCK(acpi); 256400a30448SNate Lawson return (ENXIO); 256500a30448SNate Lawson } 256600a30448SNate Lawson 256700a30448SNate Lawson /* Caller wants to abort suspend process. */ 256800a30448SNate Lawson if (error) { 256900a30448SNate Lawson sc->acpi_next_sstate = 0; 257000a30448SNate Lawson callout_stop(&sc->susp_force_to); 25712d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 25722d0c82e8SJung-uk Kim "listener on %s cancelled the pending suspend\n", 257300a30448SNate Lawson devtoname(clone->cdev)); 257400a30448SNate Lawson ACPI_UNLOCK(acpi); 257500a30448SNate Lawson return (0); 257600a30448SNate Lawson } 257700a30448SNate Lawson 257800a30448SNate Lawson /* 257900a30448SNate Lawson * Mark this device as acking the suspend request. Then, walk through 258000a30448SNate Lawson * all devices, seeing if they agree yet. We only count devices that 258100a30448SNate Lawson * are writable since read-only devices couldn't ack the request. 258200a30448SNate Lawson */ 258300a30448SNate Lawson sleeping = TRUE; 2584c66d2b38SJung-uk Kim clone->notify_status = APM_EV_ACKED; 258500a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 258600a30448SNate Lawson if ((clone->flags & ACPI_EVF_WRITE) != 0 && 258700a30448SNate Lawson clone->notify_status != APM_EV_ACKED) { 258800a30448SNate Lawson sleeping = FALSE; 258900a30448SNate Lawson break; 259000a30448SNate Lawson } 259100a30448SNate Lawson } 259200a30448SNate Lawson 259300a30448SNate Lawson /* If all devices have voted "yes", we will suspend now. */ 259400a30448SNate Lawson if (sleeping) 259500a30448SNate Lawson callout_stop(&sc->susp_force_to); 259600a30448SNate Lawson ACPI_UNLOCK(acpi); 259700a30448SNate Lawson ret = 0; 259800a30448SNate Lawson if (sleeping) { 259900a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 260000a30448SNate Lawson ret = ENODEV; 260100a30448SNate Lawson } 260200a30448SNate Lawson return (ret); 2603c66d2b38SJung-uk Kim #else 2604c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2605c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2606c66d2b38SJung-uk Kim #endif 260700a30448SNate Lawson } 260800a30448SNate Lawson 2609ece50487SMitsuru IWASAKI static void 2610ece50487SMitsuru IWASAKI acpi_sleep_enable(void *arg) 2611ece50487SMitsuru IWASAKI { 2612d42f0ad8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 2613bee4aa4aSNate Lawson 2614a0e73a12SJung-uk Kim /* Reschedule if the system is not fully up and running. */ 2615a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) { 2616a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2617a0e73a12SJung-uk Kim return; 2618a0e73a12SJung-uk Kim } 2619a0e73a12SJung-uk Kim 2620d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2621a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = FALSE; 2622d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2623d42f0ad8SJung-uk Kim } 2624d42f0ad8SJung-uk Kim 2625d42f0ad8SJung-uk Kim static ACPI_STATUS 2626d42f0ad8SJung-uk Kim acpi_sleep_disable(struct acpi_softc *sc) 2627d42f0ad8SJung-uk Kim { 2628d42f0ad8SJung-uk Kim ACPI_STATUS status; 2629d42f0ad8SJung-uk Kim 2630a0e73a12SJung-uk Kim /* Fail if the system is not fully up and running. */ 2631a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) 2632a0e73a12SJung-uk Kim return (AE_ERROR); 2633a0e73a12SJung-uk Kim 2634d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2635d42f0ad8SJung-uk Kim status = sc->acpi_sleep_disabled ? AE_ERROR : AE_OK; 2636a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 2637d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2638d42f0ad8SJung-uk Kim 2639d42f0ad8SJung-uk Kim return (status); 2640ece50487SMitsuru IWASAKI } 2641c30382dfSMitsuru IWASAKI 264215e2f34fSNate Lawson enum acpi_sleep_state { 264315e2f34fSNate Lawson ACPI_SS_NONE, 264415e2f34fSNate Lawson ACPI_SS_GPE_SET, 264515e2f34fSNate Lawson ACPI_SS_DEV_SUSPEND, 264615e2f34fSNate Lawson ACPI_SS_SLP_PREP, 264715e2f34fSNate Lawson ACPI_SS_SLEPT, 264815e2f34fSNate Lawson }; 264915e2f34fSNate Lawson 265015e32d5dSMike Smith /* 265100a30448SNate Lawson * Enter the desired system sleep state. 265215e32d5dSMike Smith * 2653be2b1797SNate Lawson * Currently we support S1-S5 but S4 is only S4BIOS 265415e32d5dSMike Smith */ 265500a30448SNate Lawson static ACPI_STATUS 265600a30448SNate Lawson acpi_EnterSleepState(struct acpi_softc *sc, int state) 265715e32d5dSMike Smith { 265871804adcSJung-uk Kim register_t intr; 265915e2f34fSNate Lawson ACPI_STATUS status; 266015e2f34fSNate Lawson enum acpi_sleep_state slp_state; 2661f0a101b7SMitsuru IWASAKI int sleep_result; 266215e32d5dSMike Smith 2663b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 26640ae55423SMike Smith 2665a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 266633c70d41SAndriy Gapon return_ACPI_STATUS (AE_BAD_PARAMETER); 2667a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) { 2668a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "Sleep state S%d not supported by BIOS\n", 2669a0e73a12SJung-uk Kim state); 2670a0e73a12SJung-uk Kim return (AE_SUPPORT); 2671a0e73a12SJung-uk Kim } 2672a0e73a12SJung-uk Kim 2673a0e73a12SJung-uk Kim /* Re-entry once we're suspending is not allowed. */ 2674a0e73a12SJung-uk Kim status = acpi_sleep_disable(sc); 2675a0e73a12SJung-uk Kim if (ACPI_FAILURE(status)) { 2676a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, 2677a0e73a12SJung-uk Kim "suspend request ignored (not ready yet)\n"); 2678a0e73a12SJung-uk Kim return (status); 2679a0e73a12SJung-uk Kim } 268033c70d41SAndriy Gapon 268133c70d41SAndriy Gapon if (state == ACPI_STATE_S5) { 268233c70d41SAndriy Gapon /* 268333c70d41SAndriy Gapon * Shut down cleanly and power off. This will call us back through the 268433c70d41SAndriy Gapon * shutdown handlers. 268533c70d41SAndriy Gapon */ 268633c70d41SAndriy Gapon shutdown_nice(RB_POWEROFF); 268733c70d41SAndriy Gapon return_ACPI_STATUS (AE_OK); 268833c70d41SAndriy Gapon } 268933c70d41SAndriy Gapon 26904a8fa6feSJung-uk Kim EVENTHANDLER_INVOKE(power_suspend); 26914a8fa6feSJung-uk Kim 269236a483bbSJung-uk Kim if (smp_started) { 2693c66d2b38SJung-uk Kim thread_lock(curthread); 2694c66d2b38SJung-uk Kim sched_bind(curthread, 0); 2695c66d2b38SJung-uk Kim thread_unlock(curthread); 269636a483bbSJung-uk Kim } 2697c66d2b38SJung-uk Kim 2698a56fe095SJohn Baldwin /* 2699a56fe095SJohn Baldwin * Be sure to hold Giant across DEVICE_SUSPEND/RESUME since non-MPSAFE 2700a56fe095SJohn Baldwin * drivers need this. 2701a56fe095SJohn Baldwin */ 2702a56fe095SJohn Baldwin mtx_lock(&Giant); 2703c66d2b38SJung-uk Kim 270415e2f34fSNate Lawson slp_state = ACPI_SS_NONE; 270556d8cb57SMitsuru IWASAKI 2706a1fccb47SMitsuru IWASAKI sc->acpi_sstate = state; 2707a1fccb47SMitsuru IWASAKI 2708d4b9ff91SNate Lawson /* Enable any GPEs as appropriate and requested by the user. */ 2709d4b9ff91SNate Lawson acpi_wake_prep_walk(state); 271015e2f34fSNate Lawson slp_state = ACPI_SS_GPE_SET; 2711e8b4d56eSNate Lawson 271215e32d5dSMike Smith /* 2713c7f88fc3SNate Lawson * Inform all devices that we are going to sleep. If at least one 2714c7f88fc3SNate Lawson * device fails, DEVICE_SUSPEND() automatically resumes the tree. 271515e32d5dSMike Smith * 2716c7f88fc3SNate Lawson * XXX Note that a better two-pass approach with a 'veto' pass 2717c7f88fc3SNate Lawson * followed by a "real thing" pass would be better, but the current 2718c7f88fc3SNate Lawson * bus interface does not provide for this. 271915e32d5dSMike Smith */ 272015e2f34fSNate Lawson if (DEVICE_SUSPEND(root_bus) != 0) { 272115e2f34fSNate Lawson device_printf(sc->acpi_dev, "device_suspend failed\n"); 272233c70d41SAndriy Gapon goto backout; 272315e2f34fSNate Lawson } 272415e2f34fSNate Lawson slp_state = ACPI_SS_DEV_SUSPEND; 2725b9c780d6SMitsuru IWASAKI 272693bfd059SNate Lawson /* If testing device suspend only, back out of everything here. */ 272793bfd059SNate Lawson if (acpi_susp_bounce) 272833c70d41SAndriy Gapon goto backout; 272993bfd059SNate Lawson 2730be2b1797SNate Lawson status = AcpiEnterSleepStatePrep(state); 2731be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2732b9c780d6SMitsuru IWASAKI device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 2733b9c780d6SMitsuru IWASAKI AcpiFormatException(status)); 273433c70d41SAndriy Gapon goto backout; 2735b9c780d6SMitsuru IWASAKI } 273615e2f34fSNate Lawson slp_state = ACPI_SS_SLP_PREP; 2737b9c780d6SMitsuru IWASAKI 2738be2b1797SNate Lawson if (sc->acpi_sleep_delay > 0) 2739ff01efb5SMitsuru IWASAKI DELAY(sc->acpi_sleep_delay * 1000000); 2740ff01efb5SMitsuru IWASAKI 2741f0a101b7SMitsuru IWASAKI intr = intr_disable(); 27424d46ef51SJung-uk Kim if (state != ACPI_STATE_S1) { 2743f0a101b7SMitsuru IWASAKI sleep_result = acpi_sleep_machdep(sc, state); 2744f0a101b7SMitsuru IWASAKI acpi_wakeup_machdep(sc, state, sleep_result, 0); 27451df130f1SJung-uk Kim AcpiLeaveSleepStatePrep(state); 2746f0a101b7SMitsuru IWASAKI intr_restore(intr); 2747f0a101b7SMitsuru IWASAKI 2748f0a101b7SMitsuru IWASAKI /* call acpi_wakeup_machdep() again with interrupt enabled */ 2749f0a101b7SMitsuru IWASAKI acpi_wakeup_machdep(sc, state, sleep_result, 1); 2750f0a101b7SMitsuru IWASAKI 2751f0a101b7SMitsuru IWASAKI if (sleep_result == -1) 2752a159c266SJung-uk Kim goto backout; 27536161544cSTakanori Watanabe 27546161544cSTakanori Watanabe /* Re-enable ACPI hardware on wakeup from sleep state 4. */ 2755be2b1797SNate Lawson if (state == ACPI_STATE_S4) 2756964679ceSMitsuru IWASAKI AcpiEnable(); 27576161544cSTakanori Watanabe } else { 27581df130f1SJung-uk Kim status = AcpiEnterSleepState(state); 27591df130f1SJung-uk Kim AcpiLeaveSleepStatePrep(state); 276071804adcSJung-uk Kim intr_restore(intr); 2761be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2762be2b1797SNate Lawson device_printf(sc->acpi_dev, "AcpiEnterSleepState failed - %s\n", 2763be2b1797SNate Lawson AcpiFormatException(status)); 276433c70d41SAndriy Gapon goto backout; 276515e32d5dSMike Smith } 27666161544cSTakanori Watanabe } 276715e2f34fSNate Lawson slp_state = ACPI_SS_SLEPT; 2768ece50487SMitsuru IWASAKI 276915e2f34fSNate Lawson /* 277015e2f34fSNate Lawson * Back out state according to how far along we got in the suspend 277115e2f34fSNate Lawson * process. This handles both the error and success cases. 277215e2f34fSNate Lawson */ 277333c70d41SAndriy Gapon backout: 277415e2f34fSNate Lawson if (slp_state >= ACPI_SS_GPE_SET) { 277515e2f34fSNate Lawson acpi_wake_prep_walk(state); 277615e2f34fSNate Lawson sc->acpi_sstate = ACPI_STATE_S0; 277715e2f34fSNate Lawson } 2778e3b56b66SMitsuru IWASAKI if (slp_state >= ACPI_SS_DEV_SUSPEND) 2779e3b56b66SMitsuru IWASAKI DEVICE_RESUME(root_bus); 2780f0a101b7SMitsuru IWASAKI if (slp_state >= ACPI_SS_SLP_PREP) 278115e2f34fSNate Lawson AcpiLeaveSleepState(state); 2782a0a15716SJung-uk Kim if (slp_state >= ACPI_SS_SLEPT) { 2783a0a15716SJung-uk Kim acpi_resync_clock(sc); 278415e2f34fSNate Lawson acpi_enable_fixed_events(sc); 2785a0a15716SJung-uk Kim } 2786337744d9SJung-uk Kim sc->acpi_next_sstate = 0; 278715e2f34fSNate Lawson 2788a56fe095SJohn Baldwin mtx_unlock(&Giant); 2789c66d2b38SJung-uk Kim 279036a483bbSJung-uk Kim if (smp_started) { 2791c66d2b38SJung-uk Kim thread_lock(curthread); 2792c66d2b38SJung-uk Kim sched_unbind(curthread); 2793c66d2b38SJung-uk Kim thread_unlock(curthread); 279436a483bbSJung-uk Kim } 2795c66d2b38SJung-uk Kim 27964a8fa6feSJung-uk Kim EVENTHANDLER_INVOKE(power_resume); 27974a8fa6feSJung-uk Kim 2798d42f0ad8SJung-uk Kim /* Allow another sleep request after a while. */ 2799d42f0ad8SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2800d42f0ad8SJung-uk Kim 2801d42f0ad8SJung-uk Kim /* Run /etc/rc.resume after we are back. */ 2802d42f0ad8SJung-uk Kim if (devctl_process_running()) 2803d42f0ad8SJung-uk Kim acpi_UserNotify("Resume", ACPI_ROOT_OBJECT, state); 2804d42f0ad8SJung-uk Kim 28050ae55423SMike Smith return_ACPI_STATUS (status); 280615e32d5dSMike Smith } 280715e32d5dSMike Smith 2808a0a15716SJung-uk Kim static void 28090755473bSJung-uk Kim acpi_resync_clock(struct acpi_softc *sc) 28100755473bSJung-uk Kim { 2811a0a15716SJung-uk Kim #ifdef __amd64__ 28120755473bSJung-uk Kim if (!acpi_reset_clock) 28130755473bSJung-uk Kim return; 28140755473bSJung-uk Kim 28150755473bSJung-uk Kim /* 28160755473bSJung-uk Kim * Warm up timecounter again and reset system clock. 28170755473bSJung-uk Kim */ 28180755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 28190755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 28200755473bSJung-uk Kim inittodr(time_second + sc->acpi_sleep_delay); 2821a0a15716SJung-uk Kim #endif 28220755473bSJung-uk Kim } 28230755473bSJung-uk Kim 2824e8b4d56eSNate Lawson /* Enable or disable the device's wake GPE. */ 2825e8b4d56eSNate Lawson int 2826e8b4d56eSNate Lawson acpi_wake_set_enable(device_t dev, int enable) 2827e8b4d56eSNate Lawson { 2828e8b4d56eSNate Lawson struct acpi_prw_data prw; 2829e8b4d56eSNate Lawson ACPI_STATUS status; 2830e8b4d56eSNate Lawson int flags; 2831e8b4d56eSNate Lawson 2832d4b9ff91SNate Lawson /* Make sure the device supports waking the system and get the GPE. */ 28332be4e471SJung-uk Kim if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0) 2834e8b4d56eSNate Lawson return (ENXIO); 2835e8b4d56eSNate Lawson 2836d4b9ff91SNate Lawson flags = acpi_get_flags(dev); 2837e8b4d56eSNate Lawson if (enable) { 28385a77b11bSJung-uk Kim status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, 28395a77b11bSJung-uk Kim ACPI_GPE_ENABLE); 2840e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2841e8b4d56eSNate Lawson device_printf(dev, "enable wake failed\n"); 2842e8b4d56eSNate Lawson return (ENXIO); 2843e8b4d56eSNate Lawson } 2844d4b9ff91SNate Lawson acpi_set_flags(dev, flags | ACPI_FLAG_WAKE_ENABLED); 2845e8b4d56eSNate Lawson } else { 28465a77b11bSJung-uk Kim status = AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, 28475a77b11bSJung-uk Kim ACPI_GPE_DISABLE); 2848e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2849e8b4d56eSNate Lawson device_printf(dev, "disable wake failed\n"); 2850e8b4d56eSNate Lawson return (ENXIO); 2851e8b4d56eSNate Lawson } 2852d4b9ff91SNate Lawson acpi_set_flags(dev, flags & ~ACPI_FLAG_WAKE_ENABLED); 2853e8b4d56eSNate Lawson } 2854e8b4d56eSNate Lawson 2855e8b4d56eSNate Lawson return (0); 2856e8b4d56eSNate Lawson } 2857e8b4d56eSNate Lawson 2858d4b9ff91SNate Lawson static int 2859d4b9ff91SNate Lawson acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate) 2860e8b4d56eSNate Lawson { 2861e8b4d56eSNate Lawson struct acpi_prw_data prw; 2862d4b9ff91SNate Lawson device_t dev; 2863e8b4d56eSNate Lawson 2864d4b9ff91SNate Lawson /* Check that this is a wake-capable device and get its GPE. */ 2865e8b4d56eSNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2866e8b4d56eSNate Lawson return (ENXIO); 2867d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2868e8b4d56eSNate Lawson 2869e8b4d56eSNate Lawson /* 2870d4b9ff91SNate Lawson * The destination sleep state must be less than (i.e., higher power) 2871d4b9ff91SNate Lawson * or equal to the value specified by _PRW. If this GPE cannot be 2872d4b9ff91SNate Lawson * enabled for the next sleep state, then disable it. If it can and 2873d4b9ff91SNate Lawson * the user requested it be enabled, turn on any required power resources 2874d4b9ff91SNate Lawson * and set _PSW. 2875e8b4d56eSNate Lawson */ 2876d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 28775a77b11bSJung-uk Kim AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_DISABLE); 2878e8b4d56eSNate Lawson if (bootverbose) 2879d4b9ff91SNate Lawson device_printf(dev, "wake_prep disabled wake for %s (S%d)\n", 2880d4b9ff91SNate Lawson acpi_name(handle), sstate); 2881d4b9ff91SNate Lawson } else if (dev && (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) != 0) { 2882d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 1); 2883d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 1); 2884d4b9ff91SNate Lawson if (bootverbose) 2885d4b9ff91SNate Lawson device_printf(dev, "wake_prep enabled for %s (S%d)\n", 2886d4b9ff91SNate Lawson acpi_name(handle), sstate); 2887d4b9ff91SNate Lawson } 2888cc85c78cSNate Lawson 2889cc85c78cSNate Lawson return (0); 2890e8b4d56eSNate Lawson } 2891e8b4d56eSNate Lawson 2892d4b9ff91SNate Lawson static int 2893d4b9ff91SNate Lawson acpi_wake_run_prep(ACPI_HANDLE handle, int sstate) 2894cc85c78cSNate Lawson { 2895cc85c78cSNate Lawson struct acpi_prw_data prw; 2896d4b9ff91SNate Lawson device_t dev; 2897cc85c78cSNate Lawson 2898cc85c78cSNate Lawson /* 2899d4b9ff91SNate Lawson * Check that this is a wake-capable device and get its GPE. Return 2900d4b9ff91SNate Lawson * now if the user didn't enable this device for wake. 2901cc85c78cSNate Lawson */ 2902d4b9ff91SNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2903d4b9ff91SNate Lawson return (ENXIO); 2904d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2905d4b9ff91SNate Lawson if (dev == NULL || (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) == 0) 2906d4b9ff91SNate Lawson return (0); 2907cc85c78cSNate Lawson 2908d4b9ff91SNate Lawson /* 2909d4b9ff91SNate Lawson * If this GPE couldn't be enabled for the previous sleep state, it was 2910d4b9ff91SNate Lawson * disabled before going to sleep so re-enable it. If it was enabled, 2911d4b9ff91SNate Lawson * clear _PSW and turn off any power resources it used. 2912d4b9ff91SNate Lawson */ 2913d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 29145a77b11bSJung-uk Kim AcpiSetGpeWakeMask(prw.gpe_handle, prw.gpe_bit, ACPI_GPE_ENABLE); 2915d4b9ff91SNate Lawson if (bootverbose) 2916d4b9ff91SNate Lawson device_printf(dev, "run_prep re-enabled %s\n", acpi_name(handle)); 2917d4b9ff91SNate Lawson } else { 2918d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 0); 2919d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 0); 2920d4b9ff91SNate Lawson if (bootverbose) 2921d4b9ff91SNate Lawson device_printf(dev, "run_prep cleaned up for %s\n", 2922d4b9ff91SNate Lawson acpi_name(handle)); 2923d4b9ff91SNate Lawson } 2924d4b9ff91SNate Lawson 2925e8b4d56eSNate Lawson return (0); 2926e8b4d56eSNate Lawson } 2927e8b4d56eSNate Lawson 2928e8b4d56eSNate Lawson static ACPI_STATUS 2929d4b9ff91SNate Lawson acpi_wake_prep(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 2930e8b4d56eSNate Lawson { 2931d4b9ff91SNate Lawson int sstate; 2932e8b4d56eSNate Lawson 2933d4b9ff91SNate Lawson /* If suspending, run the sleep prep function, otherwise wake. */ 2934d4b9ff91SNate Lawson sstate = *(int *)context; 2935d4b9ff91SNate Lawson if (AcpiGbl_SystemAwakeAndRunning) 2936d4b9ff91SNate Lawson acpi_wake_sleep_prep(handle, sstate); 2937d4b9ff91SNate Lawson else 2938d4b9ff91SNate Lawson acpi_wake_run_prep(handle, sstate); 2939e8b4d56eSNate Lawson return (AE_OK); 2940e8b4d56eSNate Lawson } 2941e8b4d56eSNate Lawson 2942d4b9ff91SNate Lawson /* Walk the tree rooted at acpi0 to prep devices for suspend/resume. */ 2943e8b4d56eSNate Lawson static int 2944d4b9ff91SNate Lawson acpi_wake_prep_walk(int sstate) 2945e8b4d56eSNate Lawson { 2946e8b4d56eSNate Lawson ACPI_HANDLE sb_handle; 2947e8b4d56eSNate Lawson 2948e8b4d56eSNate Lawson if (ACPI_SUCCESS(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sb_handle))) 2949d4b9ff91SNate Lawson AcpiWalkNamespace(ACPI_TYPE_DEVICE, sb_handle, 100, 29502272d050SJung-uk Kim acpi_wake_prep, NULL, &sstate, NULL); 2951e8b4d56eSNate Lawson return (0); 2952e8b4d56eSNate Lawson } 2953e8b4d56eSNate Lawson 295488a79fc0SNate Lawson /* Walk the tree rooted at acpi0 to attach per-device wake sysctls. */ 295588a79fc0SNate Lawson static int 295688a79fc0SNate Lawson acpi_wake_sysctl_walk(device_t dev) 295788a79fc0SNate Lawson { 295888a79fc0SNate Lawson int error, i, numdevs; 295988a79fc0SNate Lawson device_t *devlist; 296088a79fc0SNate Lawson device_t child; 2961d4b9ff91SNate Lawson ACPI_STATUS status; 296288a79fc0SNate Lawson 296388a79fc0SNate Lawson error = device_get_children(dev, &devlist, &numdevs); 29641c9ec538SNate Lawson if (error != 0 || numdevs == 0) { 29651c9ec538SNate Lawson if (numdevs == 0) 29661c9ec538SNate Lawson free(devlist, M_TEMP); 296788a79fc0SNate Lawson return (error); 29681c9ec538SNate Lawson } 296988a79fc0SNate Lawson for (i = 0; i < numdevs; i++) { 297088a79fc0SNate Lawson child = devlist[i]; 2971d4b9ff91SNate Lawson acpi_wake_sysctl_walk(child); 297288a79fc0SNate Lawson if (!device_is_attached(child)) 297388a79fc0SNate Lawson continue; 2974d4b9ff91SNate Lawson status = AcpiEvaluateObject(acpi_get_handle(child), "_PRW", NULL, NULL); 2975d4b9ff91SNate Lawson if (ACPI_SUCCESS(status)) { 297688a79fc0SNate Lawson SYSCTL_ADD_PROC(device_get_sysctl_ctx(child), 297788a79fc0SNate Lawson SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO, 297888a79fc0SNate Lawson "wake", CTLTYPE_INT | CTLFLAG_RW, child, 0, 297988a79fc0SNate Lawson acpi_wake_set_sysctl, "I", "Device set to wake the system"); 298088a79fc0SNate Lawson } 298188a79fc0SNate Lawson } 298288a79fc0SNate Lawson free(devlist, M_TEMP); 298388a79fc0SNate Lawson 298488a79fc0SNate Lawson return (0); 298588a79fc0SNate Lawson } 298688a79fc0SNate Lawson 298788a79fc0SNate Lawson /* Enable or disable wake from userland. */ 298888a79fc0SNate Lawson static int 298988a79fc0SNate Lawson acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS) 299088a79fc0SNate Lawson { 299188a79fc0SNate Lawson int enable, error; 299288a79fc0SNate Lawson device_t dev; 299388a79fc0SNate Lawson 299488a79fc0SNate Lawson dev = (device_t)arg1; 2995d4b9ff91SNate Lawson enable = (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) ? 1 : 0; 299688a79fc0SNate Lawson 299788a79fc0SNate Lawson error = sysctl_handle_int(oidp, &enable, 0, req); 299888a79fc0SNate Lawson if (error != 0 || req->newptr == NULL) 299988a79fc0SNate Lawson return (error); 300088a79fc0SNate Lawson if (enable != 0 && enable != 1) 300188a79fc0SNate Lawson return (EINVAL); 300288a79fc0SNate Lawson 300388a79fc0SNate Lawson return (acpi_wake_set_enable(dev, enable)); 300488a79fc0SNate Lawson } 300588a79fc0SNate Lawson 3006e8b4d56eSNate Lawson /* Parse a device's _PRW into a structure. */ 3007d4b9ff91SNate Lawson int 3008e8b4d56eSNate Lawson acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw) 3009e8b4d56eSNate Lawson { 3010e8b4d56eSNate Lawson ACPI_STATUS status; 3011e8b4d56eSNate Lawson ACPI_BUFFER prw_buffer; 3012e8b4d56eSNate Lawson ACPI_OBJECT *res, *res2; 3013d4b9ff91SNate Lawson int error, i, power_count; 3014e8b4d56eSNate Lawson 3015e8b4d56eSNate Lawson if (h == NULL || prw == NULL) 3016e8b4d56eSNate Lawson return (EINVAL); 3017e8b4d56eSNate Lawson 3018e8b4d56eSNate Lawson /* 3019e8b4d56eSNate Lawson * The _PRW object (7.2.9) is only required for devices that have the 3020e8b4d56eSNate Lawson * ability to wake the system from a sleeping state. 3021e8b4d56eSNate Lawson */ 3022e8b4d56eSNate Lawson error = EINVAL; 3023e8b4d56eSNate Lawson prw_buffer.Pointer = NULL; 3024e8b4d56eSNate Lawson prw_buffer.Length = ACPI_ALLOCATE_BUFFER; 3025e8b4d56eSNate Lawson status = AcpiEvaluateObject(h, "_PRW", NULL, &prw_buffer); 3026e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) 3027e8b4d56eSNate Lawson return (ENOENT); 3028e8b4d56eSNate Lawson res = (ACPI_OBJECT *)prw_buffer.Pointer; 3029e8b4d56eSNate Lawson if (res == NULL) 3030e8b4d56eSNate Lawson return (ENOENT); 3031e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res, 2)) 3032e8b4d56eSNate Lawson goto out; 3033e8b4d56eSNate Lawson 3034e8b4d56eSNate Lawson /* 3035e8b4d56eSNate Lawson * Element 1 of the _PRW object: 3036e8b4d56eSNate Lawson * The lowest power system sleeping state that can be entered while still 3037e8b4d56eSNate Lawson * providing wake functionality. The sleeping state being entered must 3038e8b4d56eSNate Lawson * be less than (i.e., higher power) or equal to this value. 3039e8b4d56eSNate Lawson */ 3040e8b4d56eSNate Lawson if (acpi_PkgInt32(res, 1, &prw->lowest_wake) != 0) 3041e8b4d56eSNate Lawson goto out; 3042e8b4d56eSNate Lawson 3043e8b4d56eSNate Lawson /* 3044e8b4d56eSNate Lawson * Element 0 of the _PRW object: 3045e8b4d56eSNate Lawson */ 3046e8b4d56eSNate Lawson switch (res->Package.Elements[0].Type) { 3047e8b4d56eSNate Lawson case ACPI_TYPE_INTEGER: 3048e8b4d56eSNate Lawson /* 3049e8b4d56eSNate Lawson * If the data type of this package element is numeric, then this 3050e8b4d56eSNate Lawson * _PRW package element is the bit index in the GPEx_EN, in the 3051e8b4d56eSNate Lawson * GPE blocks described in the FADT, of the enable bit that is 3052e8b4d56eSNate Lawson * enabled for the wake event. 3053e8b4d56eSNate Lawson */ 3054e8b4d56eSNate Lawson prw->gpe_handle = NULL; 3055e8b4d56eSNate Lawson prw->gpe_bit = res->Package.Elements[0].Integer.Value; 3056e8b4d56eSNate Lawson error = 0; 3057e8b4d56eSNate Lawson break; 3058e8b4d56eSNate Lawson case ACPI_TYPE_PACKAGE: 3059e8b4d56eSNate Lawson /* 3060e8b4d56eSNate Lawson * If the data type of this package element is a package, then this 3061e8b4d56eSNate Lawson * _PRW package element is itself a package containing two 3062e8b4d56eSNate Lawson * elements. The first is an object reference to the GPE Block 3063e8b4d56eSNate Lawson * device that contains the GPE that will be triggered by the wake 3064e8b4d56eSNate Lawson * event. The second element is numeric and it contains the bit 3065e8b4d56eSNate Lawson * index in the GPEx_EN, in the GPE Block referenced by the 3066e8b4d56eSNate Lawson * first element in the package, of the enable bit that is enabled for 3067e8b4d56eSNate Lawson * the wake event. 3068e8b4d56eSNate Lawson * 3069e8b4d56eSNate Lawson * For example, if this field is a package then it is of the form: 3070e8b4d56eSNate Lawson * Package() {\_SB.PCI0.ISA.GPE, 2} 3071e8b4d56eSNate Lawson */ 3072e8b4d56eSNate Lawson res2 = &res->Package.Elements[0]; 3073e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res2, 2)) 3074e8b4d56eSNate Lawson goto out; 3075e8b4d56eSNate Lawson prw->gpe_handle = acpi_GetReference(NULL, &res2->Package.Elements[0]); 3076e8b4d56eSNate Lawson if (prw->gpe_handle == NULL) 3077e8b4d56eSNate Lawson goto out; 3078e8b4d56eSNate Lawson if (acpi_PkgInt32(res2, 1, &prw->gpe_bit) != 0) 3079e8b4d56eSNate Lawson goto out; 3080e8b4d56eSNate Lawson error = 0; 3081e8b4d56eSNate Lawson break; 3082e8b4d56eSNate Lawson default: 3083e8b4d56eSNate Lawson goto out; 3084e8b4d56eSNate Lawson } 3085e8b4d56eSNate Lawson 3086d4b9ff91SNate Lawson /* Elements 2 to N of the _PRW object are power resources. */ 3087d4b9ff91SNate Lawson power_count = res->Package.Count - 2; 3088d4b9ff91SNate Lawson if (power_count > ACPI_PRW_MAX_POWERRES) { 3089d4b9ff91SNate Lawson printf("ACPI device %s has too many power resources\n", acpi_name(h)); 3090d4b9ff91SNate Lawson power_count = 0; 3091d4b9ff91SNate Lawson } 3092d4b9ff91SNate Lawson prw->power_res_count = power_count; 3093d4b9ff91SNate Lawson for (i = 0; i < power_count; i++) 3094d4b9ff91SNate Lawson prw->power_res[i] = res->Package.Elements[i]; 3095e8b4d56eSNate Lawson 3096e8b4d56eSNate Lawson out: 3097e8b4d56eSNate Lawson if (prw_buffer.Pointer != NULL) 3098e8b4d56eSNate Lawson AcpiOsFree(prw_buffer.Pointer); 3099e8b4d56eSNate Lawson return (error); 3100e8b4d56eSNate Lawson } 3101e8b4d56eSNate Lawson 310215e32d5dSMike Smith /* 310315e32d5dSMike Smith * ACPI Event Handlers 310415e32d5dSMike Smith */ 310515e32d5dSMike Smith 310615e32d5dSMike Smith /* System Event Handlers (registered by EVENTHANDLER_REGISTER) */ 310715e32d5dSMike Smith 310815e32d5dSMike Smith static void 310915e32d5dSMike Smith acpi_system_eventhandler_sleep(void *arg, int state) 311015e32d5dSMike Smith { 31112d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 311200a30448SNate Lawson int ret; 3113bee4aa4aSNate Lawson 3114b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 311515e32d5dSMike Smith 3116a0e73a12SJung-uk Kim /* Check if button action is disabled or unknown. */ 3117a0e73a12SJung-uk Kim if (state == ACPI_STATE_UNKNOWN) 3118813d6dcaSNate Lawson return; 3119813d6dcaSNate Lawson 312000a30448SNate Lawson /* Request that the system prepare to enter the given suspend state. */ 31212d0c82e8SJung-uk Kim ret = acpi_ReqSleepState(sc, state); 312200a30448SNate Lawson if (ret != 0) 31232d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 31242d0c82e8SJung-uk Kim "request to enter state S%d failed (err %d)\n", state, ret); 3125bee4aa4aSNate Lawson 31260ae55423SMike Smith return_VOID; 312715e32d5dSMike Smith } 312815e32d5dSMike Smith 312915e32d5dSMike Smith static void 313015e32d5dSMike Smith acpi_system_eventhandler_wakeup(void *arg, int state) 313115e32d5dSMike Smith { 3132bee4aa4aSNate Lawson 3133b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 31340ae55423SMike Smith 3135bee4aa4aSNate Lawson /* Currently, nothing to do for wakeup. */ 3136cb9b0d80SMike Smith 31370ae55423SMike Smith return_VOID; 313815e32d5dSMike Smith } 313915e32d5dSMike Smith 314015e32d5dSMike Smith /* 314115e32d5dSMike Smith * ACPICA Event Handlers (FixedEvent, also called from button notify handler) 314215e32d5dSMike Smith */ 3143b5854f5fSJung-uk Kim static void 3144b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler(void *context) 3145b5854f5fSJung-uk Kim { 3146b5854f5fSJung-uk Kim 3147b5854f5fSJung-uk Kim EVENTHANDLER_INVOKE(acpi_sleep_event, *(int *)context); 3148b5854f5fSJung-uk Kim } 3149b5854f5fSJung-uk Kim 3150b5854f5fSJung-uk Kim static void 3151b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler(void *context) 3152b5854f5fSJung-uk Kim { 3153b5854f5fSJung-uk Kim 3154b5854f5fSJung-uk Kim EVENTHANDLER_INVOKE(acpi_wakeup_event, *(int *)context); 3155b5854f5fSJung-uk Kim } 3156b5854f5fSJung-uk Kim 315715e32d5dSMike Smith UINT32 315833febf93SNate Lawson acpi_event_power_button_sleep(void *context) 315915e32d5dSMike Smith { 316015e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 316115e32d5dSMike Smith 3162b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 31630ae55423SMike Smith 3164b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3165b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler, &sc->acpi_power_button_sx))) 3166b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3167b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 316815e32d5dSMike Smith } 316915e32d5dSMike Smith 317015e32d5dSMike Smith UINT32 317133febf93SNate Lawson acpi_event_power_button_wake(void *context) 317215e32d5dSMike Smith { 317315e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 317415e32d5dSMike Smith 3175b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 31760ae55423SMike Smith 3177b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3178b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler, &sc->acpi_power_button_sx))) 3179b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3180b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 318115e32d5dSMike Smith } 318215e32d5dSMike Smith 318315e32d5dSMike Smith UINT32 318433febf93SNate Lawson acpi_event_sleep_button_sleep(void *context) 318515e32d5dSMike Smith { 318615e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 318715e32d5dSMike Smith 3188b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 31890ae55423SMike Smith 3190b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3191b5854f5fSJung-uk Kim acpi_invoke_sleep_eventhandler, &sc->acpi_sleep_button_sx))) 3192b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3193b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 319415e32d5dSMike Smith } 319515e32d5dSMike Smith 319615e32d5dSMike Smith UINT32 319733febf93SNate Lawson acpi_event_sleep_button_wake(void *context) 319815e32d5dSMike Smith { 319915e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 320015e32d5dSMike Smith 3201b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 32020ae55423SMike Smith 3203b5854f5fSJung-uk Kim if (ACPI_FAILURE(AcpiOsExecute(OSL_NOTIFY_HANDLER, 3204b5854f5fSJung-uk Kim acpi_invoke_wake_eventhandler, &sc->acpi_sleep_button_sx))) 3205b5854f5fSJung-uk Kim return_VALUE (ACPI_INTERRUPT_NOT_HANDLED); 3206b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 320715e32d5dSMike Smith } 320815e32d5dSMike Smith 320915e32d5dSMike Smith /* 3210bee4aa4aSNate Lawson * XXX This static buffer is suboptimal. There is no locking so only 3211bee4aa4aSNate Lawson * use this for single-threaded callers. 321215e32d5dSMike Smith */ 321315e32d5dSMike Smith char * 321415e32d5dSMike Smith acpi_name(ACPI_HANDLE handle) 321515e32d5dSMike Smith { 3216bee4aa4aSNate Lawson ACPI_BUFFER buf; 3217bee4aa4aSNate Lawson static char data[256]; 321815e32d5dSMike Smith 3219bee4aa4aSNate Lawson buf.Length = sizeof(data); 3220bee4aa4aSNate Lawson buf.Pointer = data; 3221cb9b0d80SMike Smith 32220a9a1f44SNate Lawson if (handle && ACPI_SUCCESS(AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf))) 3223bee4aa4aSNate Lawson return (data); 3224bee4aa4aSNate Lawson return ("(unknown)"); 322515e32d5dSMike Smith } 322615e32d5dSMike Smith 322715e32d5dSMike Smith /* 322815e32d5dSMike Smith * Debugging/bug-avoidance. Avoid trying to fetch info on various 322915e32d5dSMike Smith * parts of the namespace. 323015e32d5dSMike Smith */ 323115e32d5dSMike Smith int 323215e32d5dSMike Smith acpi_avoid(ACPI_HANDLE handle) 323315e32d5dSMike Smith { 32343c600cfbSJohn Baldwin char *cp, *env, *np; 323515e32d5dSMike Smith int len; 323615e32d5dSMike Smith 323715e32d5dSMike Smith np = acpi_name(handle); 323815e32d5dSMike Smith if (*np == '\\') 323915e32d5dSMike Smith np++; 32403c600cfbSJohn Baldwin if ((env = getenv("debug.acpi.avoid")) == NULL) 324115e32d5dSMike Smith return (0); 324215e32d5dSMike Smith 3243be2b1797SNate Lawson /* Scan the avoid list checking for a match */ 32443c600cfbSJohn Baldwin cp = env; 324515e32d5dSMike Smith for (;;) { 3246bee4aa4aSNate Lawson while (*cp != 0 && isspace(*cp)) 324715e32d5dSMike Smith cp++; 324815e32d5dSMike Smith if (*cp == 0) 324915e32d5dSMike Smith break; 325015e32d5dSMike Smith len = 0; 3251bee4aa4aSNate Lawson while (cp[len] != 0 && !isspace(cp[len])) 325215e32d5dSMike Smith len++; 3253d786139cSMaxime Henrion if (!strncmp(cp, np, len)) { 32543c600cfbSJohn Baldwin freeenv(env); 32550ae55423SMike Smith return(1); 3256d786139cSMaxime Henrion } 32570ae55423SMike Smith cp += len; 32580ae55423SMike Smith } 32593c600cfbSJohn Baldwin freeenv(env); 3260be2b1797SNate Lawson 32610ae55423SMike Smith return (0); 32620ae55423SMike Smith } 32630ae55423SMike Smith 32640ae55423SMike Smith /* 32650ae55423SMike Smith * Debugging/bug-avoidance. Disable ACPI subsystem components. 32660ae55423SMike Smith */ 32670ae55423SMike Smith int 32680ae55423SMike Smith acpi_disabled(char *subsys) 32690ae55423SMike Smith { 327078689b15SMaxime Henrion char *cp, *env; 32710ae55423SMike Smith int len; 32720ae55423SMike Smith 32733184cf5aSNate Lawson if ((env = getenv("debug.acpi.disabled")) == NULL) 32740ae55423SMike Smith return (0); 32753184cf5aSNate Lawson if (strcmp(env, "all") == 0) { 327678689b15SMaxime Henrion freeenv(env); 32770ae55423SMike Smith return (1); 3278d786139cSMaxime Henrion } 32790ae55423SMike Smith 32803184cf5aSNate Lawson /* Scan the disable list, checking for a match. */ 328178689b15SMaxime Henrion cp = env; 32820ae55423SMike Smith for (;;) { 32833184cf5aSNate Lawson while (*cp != '\0' && isspace(*cp)) 32840ae55423SMike Smith cp++; 32853184cf5aSNate Lawson if (*cp == '\0') 32860ae55423SMike Smith break; 32870ae55423SMike Smith len = 0; 32883184cf5aSNate Lawson while (cp[len] != '\0' && !isspace(cp[len])) 32890ae55423SMike Smith len++; 32903184cf5aSNate Lawson if (strncmp(cp, subsys, len) == 0) { 329178689b15SMaxime Henrion freeenv(env); 329215e32d5dSMike Smith return (1); 3293d786139cSMaxime Henrion } 329415e32d5dSMike Smith cp += len; 329515e32d5dSMike Smith } 329678689b15SMaxime Henrion freeenv(env); 3297be2b1797SNate Lawson 329815e32d5dSMike Smith return (0); 329915e32d5dSMike Smith } 330015e32d5dSMike Smith 330115e32d5dSMike Smith /* 330215e32d5dSMike Smith * Control interface. 330315e32d5dSMike Smith * 33040ae55423SMike Smith * We multiplex ioctls for all participating ACPI devices here. Individual 3305be2b1797SNate Lawson * drivers wanting to be accessible via /dev/acpi should use the 3306be2b1797SNate Lawson * register/deregister interface to make their handlers visible. 330715e32d5dSMike Smith */ 33080ae55423SMike Smith struct acpi_ioctl_hook 33090ae55423SMike Smith { 33100ae55423SMike Smith TAILQ_ENTRY(acpi_ioctl_hook) link; 33110ae55423SMike Smith u_long cmd; 3312be2b1797SNate Lawson acpi_ioctl_fn fn; 33130ae55423SMike Smith void *arg; 33140ae55423SMike Smith }; 33150ae55423SMike Smith 33160ae55423SMike Smith static TAILQ_HEAD(,acpi_ioctl_hook) acpi_ioctl_hooks; 33170ae55423SMike Smith static int acpi_ioctl_hooks_initted; 33180ae55423SMike Smith 33190ae55423SMike Smith int 3320be2b1797SNate Lawson acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg) 33210ae55423SMike Smith { 33220ae55423SMike Smith struct acpi_ioctl_hook *hp; 33230ae55423SMike Smith 33240ae55423SMike Smith if ((hp = malloc(sizeof(*hp), M_ACPIDEV, M_NOWAIT)) == NULL) 33250ae55423SMike Smith return (ENOMEM); 33260ae55423SMike Smith hp->cmd = cmd; 33270ae55423SMike Smith hp->fn = fn; 33280ae55423SMike Smith hp->arg = arg; 332915e2f34fSNate Lawson 333015e2f34fSNate Lawson ACPI_LOCK(acpi); 33310ae55423SMike Smith if (acpi_ioctl_hooks_initted == 0) { 33320ae55423SMike Smith TAILQ_INIT(&acpi_ioctl_hooks); 33330ae55423SMike Smith acpi_ioctl_hooks_initted = 1; 33340ae55423SMike Smith } 33350ae55423SMike Smith TAILQ_INSERT_TAIL(&acpi_ioctl_hooks, hp, link); 333615e2f34fSNate Lawson ACPI_UNLOCK(acpi); 333715e2f34fSNate Lawson 33380ae55423SMike Smith return (0); 33390ae55423SMike Smith } 33400ae55423SMike Smith 33410ae55423SMike Smith void 3342be2b1797SNate Lawson acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn) 33430ae55423SMike Smith { 33440ae55423SMike Smith struct acpi_ioctl_hook *hp; 33450ae55423SMike Smith 334615e2f34fSNate Lawson ACPI_LOCK(acpi); 33470ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) 334815e2f34fSNate Lawson if (hp->cmd == cmd && hp->fn == fn) 33490ae55423SMike Smith break; 33500ae55423SMike Smith 33510ae55423SMike Smith if (hp != NULL) { 33520ae55423SMike Smith TAILQ_REMOVE(&acpi_ioctl_hooks, hp, link); 33530ae55423SMike Smith free(hp, M_ACPIDEV); 33540ae55423SMike Smith } 335515e2f34fSNate Lawson ACPI_UNLOCK(acpi); 33560ae55423SMike Smith } 33570ae55423SMike Smith 335815e32d5dSMike Smith static int 335900b4e54aSWarner Losh acpiopen(struct cdev *dev, int flag, int fmt, struct thread *td) 336015e32d5dSMike Smith { 336115e32d5dSMike Smith return (0); 336215e32d5dSMike Smith } 336315e32d5dSMike Smith 336415e32d5dSMike Smith static int 336500b4e54aSWarner Losh acpiclose(struct cdev *dev, int flag, int fmt, struct thread *td) 336615e32d5dSMike Smith { 336715e32d5dSMike Smith return (0); 336815e32d5dSMike Smith } 336915e32d5dSMike Smith 337015e32d5dSMike Smith static int 337100b4e54aSWarner Losh acpiioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 337215e32d5dSMike Smith { 337315e32d5dSMike Smith struct acpi_softc *sc; 33740ae55423SMike Smith struct acpi_ioctl_hook *hp; 3375bee4aa4aSNate Lawson int error, state; 337615e32d5dSMike Smith 3377a2e35898SDavid E. O'Brien error = 0; 3378a2e35898SDavid E. O'Brien hp = NULL; 337915e32d5dSMike Smith sc = dev->si_drv1; 338015e32d5dSMike Smith 33810ae55423SMike Smith /* 33820ae55423SMike Smith * Scan the list of registered ioctls, looking for handlers. 33830ae55423SMike Smith */ 338415e2f34fSNate Lawson ACPI_LOCK(acpi); 3385bee4aa4aSNate Lawson if (acpi_ioctl_hooks_initted) 33860ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) { 3387bee4aa4aSNate Lawson if (hp->cmd == cmd) 3388bee4aa4aSNate Lawson break; 33890ae55423SMike Smith } 339015e2f34fSNate Lawson ACPI_UNLOCK(acpi); 3391bee4aa4aSNate Lawson if (hp) 3392bee4aa4aSNate Lawson return (hp->fn(cmd, addr, hp->arg)); 33930ae55423SMike Smith 33940ae55423SMike Smith /* 3395a89fcf28STakanori Watanabe * Core ioctls are not permitted for non-writable user. 3396a89fcf28STakanori Watanabe * Currently, other ioctls just fetch information. 3397a89fcf28STakanori Watanabe * Not changing system behavior. 3398a89fcf28STakanori Watanabe */ 3399be2b1797SNate Lawson if ((flag & FWRITE) == 0) 3400be2b1797SNate Lawson return (EPERM); 3401a89fcf28STakanori Watanabe 3402be2b1797SNate Lawson /* Core system ioctls. */ 340315e32d5dSMike Smith switch (cmd) { 340400a30448SNate Lawson case ACPIIO_REQSLPSTATE: 340500a30448SNate Lawson state = *(int *)addr; 340600a30448SNate Lawson if (state != ACPI_STATE_S5) 3407a0e73a12SJung-uk Kim return (acpi_ReqSleepState(sc, state)); 3408a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "power off via acpi ioctl not supported\n"); 3409a0e73a12SJung-uk Kim error = EOPNOTSUPP; 341000a30448SNate Lawson break; 341100a30448SNate Lawson case ACPIIO_ACKSLPSTATE: 341200a30448SNate Lawson error = *(int *)addr; 341300a30448SNate Lawson error = acpi_AckSleepState(sc->acpi_clone, error); 341400a30448SNate Lawson break; 341500a30448SNate Lawson case ACPIIO_SETSLPSTATE: /* DEPRECATED */ 341615e32d5dSMike Smith state = *(int *)addr; 3417a0e73a12SJung-uk Kim if (state < ACPI_STATE_S0 || state > ACPI_S_STATES_MAX) 3418a0e73a12SJung-uk Kim return (EINVAL); 3419a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 3420a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3421a0e73a12SJung-uk Kim if (ACPI_FAILURE(acpi_SetSleepState(sc, state))) 3422a0e73a12SJung-uk Kim error = ENXIO; 342315e32d5dSMike Smith break; 342415e32d5dSMike Smith default: 3425bee4aa4aSNate Lawson error = ENXIO; 342615e32d5dSMike Smith break; 342715e32d5dSMike Smith } 3428917d44c8SMitsuru IWASAKI 342915e32d5dSMike Smith return (error); 343015e32d5dSMike Smith } 343115e32d5dSMike Smith 34321d073b1dSJohn Baldwin static int 3433a0e73a12SJung-uk Kim acpi_sname2sstate(const char *sname) 3434a0e73a12SJung-uk Kim { 3435a0e73a12SJung-uk Kim int sstate; 3436a0e73a12SJung-uk Kim 3437a0e73a12SJung-uk Kim if (toupper(sname[0]) == 'S') { 3438a0e73a12SJung-uk Kim sstate = sname[1] - '0'; 3439a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5 && 3440a0e73a12SJung-uk Kim sname[2] == '\0') 3441a0e73a12SJung-uk Kim return (sstate); 3442a0e73a12SJung-uk Kim } else if (strcasecmp(sname, "NONE") == 0) 3443a0e73a12SJung-uk Kim return (ACPI_STATE_UNKNOWN); 3444a0e73a12SJung-uk Kim return (-1); 3445a0e73a12SJung-uk Kim } 3446a0e73a12SJung-uk Kim 3447a0e73a12SJung-uk Kim static const char * 3448a0e73a12SJung-uk Kim acpi_sstate2sname(int sstate) 3449a0e73a12SJung-uk Kim { 3450a0e73a12SJung-uk Kim static const char *snames[] = { "S0", "S1", "S2", "S3", "S4", "S5" }; 3451a0e73a12SJung-uk Kim 3452a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5) 3453a0e73a12SJung-uk Kim return (snames[sstate]); 3454a0e73a12SJung-uk Kim else if (sstate == ACPI_STATE_UNKNOWN) 3455a0e73a12SJung-uk Kim return ("NONE"); 3456a0e73a12SJung-uk Kim return (NULL); 3457a0e73a12SJung-uk Kim } 3458a0e73a12SJung-uk Kim 3459a0e73a12SJung-uk Kim static int 3460d75de536SMitsuru IWASAKI acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 3461d75de536SMitsuru IWASAKI { 3462d75de536SMitsuru IWASAKI int error; 3463bee4aa4aSNate Lawson struct sbuf sb; 3464a0e73a12SJung-uk Kim UINT8 state; 3465d75de536SMitsuru IWASAKI 3466bee4aa4aSNate Lawson sbuf_new(&sb, NULL, 32, SBUF_AUTOEXTEND); 3467a0e73a12SJung-uk Kim for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++) 3468a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) 3469a0e73a12SJung-uk Kim sbuf_printf(&sb, "%s ", acpi_sstate2sname(state)); 3470bee4aa4aSNate Lawson sbuf_trim(&sb); 3471bee4aa4aSNate Lawson sbuf_finish(&sb); 3472bee4aa4aSNate Lawson error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req); 3473bee4aa4aSNate Lawson sbuf_delete(&sb); 3474d75de536SMitsuru IWASAKI return (error); 3475d75de536SMitsuru IWASAKI } 3476d75de536SMitsuru IWASAKI 3477d75de536SMitsuru IWASAKI static int 34781d073b1dSJohn Baldwin acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 34791d073b1dSJohn Baldwin { 34801d073b1dSJohn Baldwin char sleep_state[10]; 3481a0e73a12SJung-uk Kim int error, new_state, old_state; 34821d073b1dSJohn Baldwin 3483a0e73a12SJung-uk Kim old_state = *(int *)oidp->oid_arg1; 3484a0e73a12SJung-uk Kim strlcpy(sleep_state, acpi_sstate2sname(old_state), sizeof(sleep_state)); 34851d073b1dSJohn Baldwin error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req); 34861d073b1dSJohn Baldwin if (error == 0 && req->newptr != NULL) { 3487a0e73a12SJung-uk Kim new_state = acpi_sname2sstate(sleep_state); 3488a0e73a12SJung-uk Kim if (new_state < ACPI_STATE_S1) 3489a0e73a12SJung-uk Kim return (EINVAL); 349054b43614SJung-uk Kim if (new_state < ACPI_S_STATE_COUNT && !acpi_sleep_states[new_state]) 3491a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3492be2b1797SNate Lawson if (new_state != old_state) 3493a0e73a12SJung-uk Kim *(int *)oidp->oid_arg1 = new_state; 34941d073b1dSJohn Baldwin } 34951d073b1dSJohn Baldwin return (error); 34961d073b1dSJohn Baldwin } 34971d073b1dSJohn Baldwin 34989b937d48SNate Lawson /* Inform devctl(4) when we receive a Notify. */ 34999b937d48SNate Lawson void 35009b937d48SNate Lawson acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify) 35019b937d48SNate Lawson { 35029b937d48SNate Lawson char notify_buf[16]; 35039b937d48SNate Lawson ACPI_BUFFER handle_buf; 35049b937d48SNate Lawson ACPI_STATUS status; 35059b937d48SNate Lawson 35069b937d48SNate Lawson if (subsystem == NULL) 35079b937d48SNate Lawson return; 35089b937d48SNate Lawson 35099b937d48SNate Lawson handle_buf.Pointer = NULL; 35109b937d48SNate Lawson handle_buf.Length = ACPI_ALLOCATE_BUFFER; 35119b937d48SNate Lawson status = AcpiNsHandleToPathname(h, &handle_buf); 35129b937d48SNate Lawson if (ACPI_FAILURE(status)) 35139b937d48SNate Lawson return; 35149b937d48SNate Lawson snprintf(notify_buf, sizeof(notify_buf), "notify=0x%02x", notify); 35159b937d48SNate Lawson devctl_notify("ACPI", subsystem, handle_buf.Pointer, notify_buf); 35169b937d48SNate Lawson AcpiOsFree(handle_buf.Pointer); 35179b937d48SNate Lawson } 35189b937d48SNate Lawson 351915e32d5dSMike Smith #ifdef ACPI_DEBUG 35200ae55423SMike Smith /* 35210ae55423SMike Smith * Support for parsing debug options from the kernel environment. 35220ae55423SMike Smith * 35230ae55423SMike Smith * Bits may be set in the AcpiDbgLayer and AcpiDbgLevel debug registers 35240ae55423SMike Smith * by specifying the names of the bits in the debug.acpi.layer and 35250ae55423SMike Smith * debug.acpi.level environment variables. Bits may be unset by 35260ae55423SMike Smith * prefixing the bit name with !. 35270ae55423SMike Smith */ 352815e32d5dSMike Smith struct debugtag 352915e32d5dSMike Smith { 353015e32d5dSMike Smith char *name; 353115e32d5dSMike Smith UINT32 value; 353215e32d5dSMike Smith }; 353315e32d5dSMike Smith 353415e32d5dSMike Smith static struct debugtag dbg_layer[] = { 3535c5ba0be4SMike Smith {"ACPI_UTILITIES", ACPI_UTILITIES}, 3536c5ba0be4SMike Smith {"ACPI_HARDWARE", ACPI_HARDWARE}, 3537c5ba0be4SMike Smith {"ACPI_EVENTS", ACPI_EVENTS}, 3538c5ba0be4SMike Smith {"ACPI_TABLES", ACPI_TABLES}, 3539c5ba0be4SMike Smith {"ACPI_NAMESPACE", ACPI_NAMESPACE}, 3540c5ba0be4SMike Smith {"ACPI_PARSER", ACPI_PARSER}, 3541c5ba0be4SMike Smith {"ACPI_DISPATCHER", ACPI_DISPATCHER}, 3542c5ba0be4SMike Smith {"ACPI_EXECUTER", ACPI_EXECUTER}, 3543c5ba0be4SMike Smith {"ACPI_RESOURCES", ACPI_RESOURCES}, 3544d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DEBUGGER", ACPI_CA_DEBUGGER}, 35454c1cdee6SMike Smith {"ACPI_OS_SERVICES", ACPI_OS_SERVICES}, 3546d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DISASSEMBLER", ACPI_CA_DISASSEMBLER}, 3547297835bcSNate Lawson {"ACPI_ALL_COMPONENTS", ACPI_ALL_COMPONENTS}, 35484c1cdee6SMike Smith 3549c5ba0be4SMike Smith {"ACPI_AC_ADAPTER", ACPI_AC_ADAPTER}, 3550c5ba0be4SMike Smith {"ACPI_BATTERY", ACPI_BATTERY}, 35513184cf5aSNate Lawson {"ACPI_BUS", ACPI_BUS}, 3552c5ba0be4SMike Smith {"ACPI_BUTTON", ACPI_BUTTON}, 35533184cf5aSNate Lawson {"ACPI_EC", ACPI_EC}, 35543184cf5aSNate Lawson {"ACPI_FAN", ACPI_FAN}, 35553184cf5aSNate Lawson {"ACPI_POWERRES", ACPI_POWERRES}, 35564c1cdee6SMike Smith {"ACPI_PROCESSOR", ACPI_PROCESSOR}, 3557cb9b0d80SMike Smith {"ACPI_THERMAL", ACPI_THERMAL}, 35583184cf5aSNate Lawson {"ACPI_TIMER", ACPI_TIMER}, 3559b53f2771SMike Smith {"ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS}, 356015e32d5dSMike Smith {NULL, 0} 356115e32d5dSMike Smith }; 356215e32d5dSMike Smith 356315e32d5dSMike Smith static struct debugtag dbg_level[] = { 35649501b603SJohn Baldwin {"ACPI_LV_INIT", ACPI_LV_INIT}, 35654c1cdee6SMike Smith {"ACPI_LV_DEBUG_OBJECT", ACPI_LV_DEBUG_OBJECT}, 35669501b603SJohn Baldwin {"ACPI_LV_INFO", ACPI_LV_INFO}, 3567cc6455afSJung-uk Kim {"ACPI_LV_REPAIR", ACPI_LV_REPAIR}, 35684c1cdee6SMike Smith {"ACPI_LV_ALL_EXCEPTIONS", ACPI_LV_ALL_EXCEPTIONS}, 3569d62ab2f4SMitsuru IWASAKI 3570d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 1 [Standard Trace Level] */ 3571297835bcSNate Lawson {"ACPI_LV_INIT_NAMES", ACPI_LV_INIT_NAMES}, 35724c1cdee6SMike Smith {"ACPI_LV_PARSE", ACPI_LV_PARSE}, 35734c1cdee6SMike Smith {"ACPI_LV_LOAD", ACPI_LV_LOAD}, 3574d62ab2f4SMitsuru IWASAKI {"ACPI_LV_DISPATCH", ACPI_LV_DISPATCH}, 35754c1cdee6SMike Smith {"ACPI_LV_EXEC", ACPI_LV_EXEC}, 35764c1cdee6SMike Smith {"ACPI_LV_NAMES", ACPI_LV_NAMES}, 35774c1cdee6SMike Smith {"ACPI_LV_OPREGION", ACPI_LV_OPREGION}, 35784c1cdee6SMike Smith {"ACPI_LV_BFIELD", ACPI_LV_BFIELD}, 35794c1cdee6SMike Smith {"ACPI_LV_TABLES", ACPI_LV_TABLES}, 35804c1cdee6SMike Smith {"ACPI_LV_VALUES", ACPI_LV_VALUES}, 35814c1cdee6SMike Smith {"ACPI_LV_OBJECTS", ACPI_LV_OBJECTS}, 35824c1cdee6SMike Smith {"ACPI_LV_RESOURCES", ACPI_LV_RESOURCES}, 35834c1cdee6SMike Smith {"ACPI_LV_USER_REQUESTS", ACPI_LV_USER_REQUESTS}, 35844c1cdee6SMike Smith {"ACPI_LV_PACKAGE", ACPI_LV_PACKAGE}, 3585d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY1", ACPI_LV_VERBOSITY1}, 3586d62ab2f4SMitsuru IWASAKI 3587d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 2 [Function tracing and memory allocation] */ 3588d62ab2f4SMitsuru IWASAKI {"ACPI_LV_ALLOCATIONS", ACPI_LV_ALLOCATIONS}, 3589d62ab2f4SMitsuru IWASAKI {"ACPI_LV_FUNCTIONS", ACPI_LV_FUNCTIONS}, 3590d62ab2f4SMitsuru IWASAKI {"ACPI_LV_OPTIMIZATIONS", ACPI_LV_OPTIMIZATIONS}, 3591d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY2", ACPI_LV_VERBOSITY2}, 35924c1cdee6SMike Smith {"ACPI_LV_ALL", ACPI_LV_ALL}, 3593d62ab2f4SMitsuru IWASAKI 3594d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 3 [Threading, I/O, and Interrupts] */ 3595d62ab2f4SMitsuru IWASAKI {"ACPI_LV_MUTEX", ACPI_LV_MUTEX}, 3596d62ab2f4SMitsuru IWASAKI {"ACPI_LV_THREADS", ACPI_LV_THREADS}, 3597d62ab2f4SMitsuru IWASAKI {"ACPI_LV_IO", ACPI_LV_IO}, 3598d62ab2f4SMitsuru IWASAKI {"ACPI_LV_INTERRUPTS", ACPI_LV_INTERRUPTS}, 3599d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY3", ACPI_LV_VERBOSITY3}, 3600d62ab2f4SMitsuru IWASAKI 3601d62ab2f4SMitsuru IWASAKI /* Exceptionally verbose output -- also used in the global "DebugLevel" */ 360298479b04SMitsuru IWASAKI {"ACPI_LV_AML_DISASSEMBLE", ACPI_LV_AML_DISASSEMBLE}, 360398479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE_INFO", ACPI_LV_VERBOSE_INFO}, 360498479b04SMitsuru IWASAKI {"ACPI_LV_FULL_TABLES", ACPI_LV_FULL_TABLES}, 360598479b04SMitsuru IWASAKI {"ACPI_LV_EVENTS", ACPI_LV_EVENTS}, 360698479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE", ACPI_LV_VERBOSE}, 360715e32d5dSMike Smith {NULL, 0} 360815e32d5dSMike Smith }; 360915e32d5dSMike Smith 361015e32d5dSMike Smith static void 361115e32d5dSMike Smith acpi_parse_debug(char *cp, struct debugtag *tag, UINT32 *flag) 361215e32d5dSMike Smith { 361315e32d5dSMike Smith char *ep; 361415e32d5dSMike Smith int i, l; 36150ae55423SMike Smith int set; 361615e32d5dSMike Smith 361715e32d5dSMike Smith while (*cp) { 361815e32d5dSMike Smith if (isspace(*cp)) { 361915e32d5dSMike Smith cp++; 362015e32d5dSMike Smith continue; 362115e32d5dSMike Smith } 362215e32d5dSMike Smith ep = cp; 362315e32d5dSMike Smith while (*ep && !isspace(*ep)) 362415e32d5dSMike Smith ep++; 36250ae55423SMike Smith if (*cp == '!') { 36260ae55423SMike Smith set = 0; 36270ae55423SMike Smith cp++; 36280ae55423SMike Smith if (cp == ep) 36290ae55423SMike Smith continue; 36300ae55423SMike Smith } else { 36310ae55423SMike Smith set = 1; 36320ae55423SMike Smith } 363315e32d5dSMike Smith l = ep - cp; 363415e32d5dSMike Smith for (i = 0; tag[i].name != NULL; i++) { 363515e32d5dSMike Smith if (!strncmp(cp, tag[i].name, l)) { 3636be2b1797SNate Lawson if (set) 363715e32d5dSMike Smith *flag |= tag[i].value; 3638be2b1797SNate Lawson else 36390ae55423SMike Smith *flag &= ~tag[i].value; 364015e32d5dSMike Smith } 364115e32d5dSMike Smith } 364215e32d5dSMike Smith cp = ep; 364315e32d5dSMike Smith } 364415e32d5dSMike Smith } 364515e32d5dSMike Smith 364615e32d5dSMike Smith static void 36472a4ac806SMike Smith acpi_set_debugging(void *junk) 364815e32d5dSMike Smith { 36497e639165SNate Lawson char *layer, *level; 365015e32d5dSMike Smith 36511d7b121cSNate Lawson if (cold) { 36520ae55423SMike Smith AcpiDbgLayer = 0; 36530ae55423SMike Smith AcpiDbgLevel = 0; 36541d7b121cSNate Lawson } 36551d7b121cSNate Lawson 36567e639165SNate Lawson layer = getenv("debug.acpi.layer"); 36577e639165SNate Lawson level = getenv("debug.acpi.level"); 36587e639165SNate Lawson if (layer == NULL && level == NULL) 36597e639165SNate Lawson return; 36600ae55423SMike Smith 36617e639165SNate Lawson printf("ACPI set debug"); 36627e639165SNate Lawson if (layer != NULL) { 36637e639165SNate Lawson if (strcmp("NONE", layer) != 0) 36647e639165SNate Lawson printf(" layer '%s'", layer); 36657e639165SNate Lawson acpi_parse_debug(layer, &dbg_layer[0], &AcpiDbgLayer); 36667e639165SNate Lawson freeenv(layer); 36671d7b121cSNate Lawson } 36687e639165SNate Lawson if (level != NULL) { 36697e639165SNate Lawson if (strcmp("NONE", level) != 0) 36707e639165SNate Lawson printf(" level '%s'", level); 36717e639165SNate Lawson acpi_parse_debug(level, &dbg_level[0], &AcpiDbgLevel); 36727e639165SNate Lawson freeenv(level); 36737e639165SNate Lawson } 36747e639165SNate Lawson printf("\n"); 367515e32d5dSMike Smith } 3676bee4aa4aSNate Lawson 3677be2b1797SNate Lawson SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging, 3678be2b1797SNate Lawson NULL); 36791d7b121cSNate Lawson 36801d7b121cSNate Lawson static int 36811d7b121cSNate Lawson acpi_debug_sysctl(SYSCTL_HANDLER_ARGS) 36821d7b121cSNate Lawson { 368354f6bca0SNate Lawson int error, *dbg; 36841d7b121cSNate Lawson struct debugtag *tag; 368554f6bca0SNate Lawson struct sbuf sb; 36861d7b121cSNate Lawson 368754f6bca0SNate Lawson if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 368854f6bca0SNate Lawson return (ENOMEM); 36891d7b121cSNate Lawson if (strcmp(oidp->oid_arg1, "debug.acpi.layer") == 0) { 36901d7b121cSNate Lawson tag = &dbg_layer[0]; 36911d7b121cSNate Lawson dbg = &AcpiDbgLayer; 36921d7b121cSNate Lawson } else { 36931d7b121cSNate Lawson tag = &dbg_level[0]; 36941d7b121cSNate Lawson dbg = &AcpiDbgLevel; 36951d7b121cSNate Lawson } 36961d7b121cSNate Lawson 36971d7b121cSNate Lawson /* Get old values if this is a get request. */ 369815e2f34fSNate Lawson ACPI_SERIAL_BEGIN(acpi); 36991d7b121cSNate Lawson if (*dbg == 0) { 370054f6bca0SNate Lawson sbuf_cpy(&sb, "NONE"); 37011d7b121cSNate Lawson } else if (req->newptr == NULL) { 37021d7b121cSNate Lawson for (; tag->name != NULL; tag++) { 370354f6bca0SNate Lawson if ((*dbg & tag->value) == tag->value) 370454f6bca0SNate Lawson sbuf_printf(&sb, "%s ", tag->name); 37051d7b121cSNate Lawson } 37061d7b121cSNate Lawson } 370754f6bca0SNate Lawson sbuf_trim(&sb); 370854f6bca0SNate Lawson sbuf_finish(&sb); 37091d7b121cSNate Lawson 37107e639165SNate Lawson /* Copy out the old values to the user. */ 37117e639165SNate Lawson error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb)); 371254f6bca0SNate Lawson sbuf_delete(&sb); 37131d7b121cSNate Lawson 37141d7b121cSNate Lawson /* If the user is setting a string, parse it. */ 37151d7b121cSNate Lawson if (error == 0 && req->newptr != NULL) { 37161d7b121cSNate Lawson *dbg = 0; 37171d7b121cSNate Lawson setenv((char *)oidp->oid_arg1, (char *)req->newptr); 37181d7b121cSNate Lawson acpi_set_debugging(NULL); 37191d7b121cSNate Lawson } 372015e2f34fSNate Lawson ACPI_SERIAL_END(acpi); 37211d7b121cSNate Lawson 37221d7b121cSNate Lawson return (error); 37231d7b121cSNate Lawson } 3724bee4aa4aSNate Lawson 37251d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW | CTLTYPE_STRING, 37261d7b121cSNate Lawson "debug.acpi.layer", 0, acpi_debug_sysctl, "A", ""); 37271d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING, 37281d7b121cSNate Lawson "debug.acpi.level", 0, acpi_debug_sysctl, "A", ""); 3729bee4aa4aSNate Lawson #endif /* ACPI_DEBUG */ 3730f9390180SMitsuru IWASAKI 3731f9390180SMitsuru IWASAKI static int 37322a18c71dSJung-uk Kim acpi_debug_objects_sysctl(SYSCTL_HANDLER_ARGS) 37332a18c71dSJung-uk Kim { 37342a18c71dSJung-uk Kim int error; 37352a18c71dSJung-uk Kim int old; 37362a18c71dSJung-uk Kim 37372a18c71dSJung-uk Kim old = acpi_debug_objects; 37382a18c71dSJung-uk Kim error = sysctl_handle_int(oidp, &acpi_debug_objects, 0, req); 37392a18c71dSJung-uk Kim if (error != 0 || req->newptr == NULL) 37402a18c71dSJung-uk Kim return (error); 37412a18c71dSJung-uk Kim if (old == acpi_debug_objects || (old && acpi_debug_objects)) 37422a18c71dSJung-uk Kim return (0); 37432a18c71dSJung-uk Kim 37442a18c71dSJung-uk Kim ACPI_SERIAL_BEGIN(acpi); 37452a18c71dSJung-uk Kim AcpiGbl_EnableAmlDebugObject = acpi_debug_objects ? TRUE : FALSE; 37462a18c71dSJung-uk Kim ACPI_SERIAL_END(acpi); 37472a18c71dSJung-uk Kim 37482a18c71dSJung-uk Kim return (0); 37492a18c71dSJung-uk Kim } 37502a18c71dSJung-uk Kim 37512a18c71dSJung-uk Kim static int 3752ae19af49SJung-uk Kim acpi_parse_interfaces(char *str, struct acpi_interface *iface) 3753ae19af49SJung-uk Kim { 3754ae19af49SJung-uk Kim char *p; 3755ae19af49SJung-uk Kim size_t len; 3756ae19af49SJung-uk Kim int i, j; 3757ae19af49SJung-uk Kim 3758ae19af49SJung-uk Kim p = str; 3759ae19af49SJung-uk Kim while (isspace(*p) || *p == ',') 3760ae19af49SJung-uk Kim p++; 3761ae19af49SJung-uk Kim len = strlen(p); 3762ae19af49SJung-uk Kim if (len == 0) 3763ae19af49SJung-uk Kim return (0); 3764ae19af49SJung-uk Kim p = strdup(p, M_TEMP); 3765ae19af49SJung-uk Kim for (i = 0; i < len; i++) 3766ae19af49SJung-uk Kim if (p[i] == ',') 3767ae19af49SJung-uk Kim p[i] = '\0'; 3768ae19af49SJung-uk Kim i = j = 0; 3769ae19af49SJung-uk Kim while (i < len) 3770ae19af49SJung-uk Kim if (isspace(p[i]) || p[i] == '\0') 3771ae19af49SJung-uk Kim i++; 3772ae19af49SJung-uk Kim else { 3773ae19af49SJung-uk Kim i += strlen(p + i) + 1; 3774ae19af49SJung-uk Kim j++; 3775ae19af49SJung-uk Kim } 3776ae19af49SJung-uk Kim if (j == 0) { 3777ae19af49SJung-uk Kim free(p, M_TEMP); 3778ae19af49SJung-uk Kim return (0); 3779ae19af49SJung-uk Kim } 3780ae19af49SJung-uk Kim iface->data = malloc(sizeof(*iface->data) * j, M_TEMP, M_WAITOK); 3781ae19af49SJung-uk Kim iface->num = j; 3782ae19af49SJung-uk Kim i = j = 0; 3783ae19af49SJung-uk Kim while (i < len) 3784ae19af49SJung-uk Kim if (isspace(p[i]) || p[i] == '\0') 3785ae19af49SJung-uk Kim i++; 3786ae19af49SJung-uk Kim else { 3787ae19af49SJung-uk Kim iface->data[j] = p + i; 3788ae19af49SJung-uk Kim i += strlen(p + i) + 1; 3789ae19af49SJung-uk Kim j++; 3790ae19af49SJung-uk Kim } 3791ae19af49SJung-uk Kim 3792ae19af49SJung-uk Kim return (j); 3793ae19af49SJung-uk Kim } 3794ae19af49SJung-uk Kim 3795ae19af49SJung-uk Kim static void 3796ae19af49SJung-uk Kim acpi_free_interfaces(struct acpi_interface *iface) 3797ae19af49SJung-uk Kim { 3798ae19af49SJung-uk Kim 3799ae19af49SJung-uk Kim free(iface->data[0], M_TEMP); 3800ae19af49SJung-uk Kim free(iface->data, M_TEMP); 3801ae19af49SJung-uk Kim } 3802ae19af49SJung-uk Kim 3803ae19af49SJung-uk Kim static void 3804ae19af49SJung-uk Kim acpi_reset_interfaces(device_t dev) 3805ae19af49SJung-uk Kim { 3806ae19af49SJung-uk Kim struct acpi_interface list; 3807ae19af49SJung-uk Kim ACPI_STATUS status; 3808ae19af49SJung-uk Kim int i; 3809ae19af49SJung-uk Kim 3810ae19af49SJung-uk Kim if (acpi_parse_interfaces(acpi_install_interface, &list) > 0) { 3811ae19af49SJung-uk Kim for (i = 0; i < list.num; i++) { 3812ae19af49SJung-uk Kim status = AcpiInstallInterface(list.data[i]); 3813ae19af49SJung-uk Kim if (ACPI_FAILURE(status)) 3814ae19af49SJung-uk Kim device_printf(dev, 3815ae19af49SJung-uk Kim "failed to install _OSI(\"%s\"): %s\n", 3816ae19af49SJung-uk Kim list.data[i], AcpiFormatException(status)); 3817ae19af49SJung-uk Kim else if (bootverbose) 3818ae19af49SJung-uk Kim device_printf(dev, "installed _OSI(\"%s\")\n", 3819ae19af49SJung-uk Kim list.data[i]); 3820ae19af49SJung-uk Kim } 3821ae19af49SJung-uk Kim acpi_free_interfaces(&list); 3822ae19af49SJung-uk Kim } 3823ae19af49SJung-uk Kim if (acpi_parse_interfaces(acpi_remove_interface, &list) > 0) { 3824ae19af49SJung-uk Kim for (i = 0; i < list.num; i++) { 3825ae19af49SJung-uk Kim status = AcpiRemoveInterface(list.data[i]); 3826ae19af49SJung-uk Kim if (ACPI_FAILURE(status)) 3827ae19af49SJung-uk Kim device_printf(dev, 3828ae19af49SJung-uk Kim "failed to remove _OSI(\"%s\"): %s\n", 3829ae19af49SJung-uk Kim list.data[i], AcpiFormatException(status)); 3830ae19af49SJung-uk Kim else if (bootverbose) 3831ae19af49SJung-uk Kim device_printf(dev, "removed _OSI(\"%s\")\n", 3832ae19af49SJung-uk Kim list.data[i]); 3833ae19af49SJung-uk Kim } 3834ae19af49SJung-uk Kim acpi_free_interfaces(&list); 3835ae19af49SJung-uk Kim } 3836ae19af49SJung-uk Kim } 3837ae19af49SJung-uk Kim 3838ae19af49SJung-uk Kim static int 3839f9390180SMitsuru IWASAKI acpi_pm_func(u_long cmd, void *arg, ...) 3840f9390180SMitsuru IWASAKI { 3841f9390180SMitsuru IWASAKI int state, acpi_state; 3842f9390180SMitsuru IWASAKI int error; 3843f9390180SMitsuru IWASAKI struct acpi_softc *sc; 3844f9390180SMitsuru IWASAKI va_list ap; 3845f9390180SMitsuru IWASAKI 3846f9390180SMitsuru IWASAKI error = 0; 3847f9390180SMitsuru IWASAKI switch (cmd) { 3848f9390180SMitsuru IWASAKI case POWER_CMD_SUSPEND: 3849f9390180SMitsuru IWASAKI sc = (struct acpi_softc *)arg; 3850f9390180SMitsuru IWASAKI if (sc == NULL) { 3851f9390180SMitsuru IWASAKI error = EINVAL; 3852f9390180SMitsuru IWASAKI goto out; 3853f9390180SMitsuru IWASAKI } 3854f9390180SMitsuru IWASAKI 3855f9390180SMitsuru IWASAKI va_start(ap, arg); 3856f9390180SMitsuru IWASAKI state = va_arg(ap, int); 3857f9390180SMitsuru IWASAKI va_end(ap); 3858f9390180SMitsuru IWASAKI 3859f9390180SMitsuru IWASAKI switch (state) { 3860f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_STANDBY: 3861f9390180SMitsuru IWASAKI acpi_state = sc->acpi_standby_sx; 3862f9390180SMitsuru IWASAKI break; 3863f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_SUSPEND: 3864f9390180SMitsuru IWASAKI acpi_state = sc->acpi_suspend_sx; 3865f9390180SMitsuru IWASAKI break; 3866f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_HIBERNATE: 3867f9390180SMitsuru IWASAKI acpi_state = ACPI_STATE_S4; 3868f9390180SMitsuru IWASAKI break; 3869f9390180SMitsuru IWASAKI default: 3870f9390180SMitsuru IWASAKI error = EINVAL; 3871f9390180SMitsuru IWASAKI goto out; 3872f9390180SMitsuru IWASAKI } 3873f9390180SMitsuru IWASAKI 387400a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, acpi_state))) 387500a30448SNate Lawson error = ENXIO; 3876f9390180SMitsuru IWASAKI break; 3877f9390180SMitsuru IWASAKI default: 3878f9390180SMitsuru IWASAKI error = EINVAL; 3879f9390180SMitsuru IWASAKI goto out; 3880f9390180SMitsuru IWASAKI } 3881f9390180SMitsuru IWASAKI 3882f9390180SMitsuru IWASAKI out: 3883f9390180SMitsuru IWASAKI return (error); 3884f9390180SMitsuru IWASAKI } 3885f9390180SMitsuru IWASAKI 3886f9390180SMitsuru IWASAKI static void 3887f9390180SMitsuru IWASAKI acpi_pm_register(void *arg) 3888f9390180SMitsuru IWASAKI { 3889be2b1797SNate Lawson if (!cold || resource_disabled("acpi", 0)) 38906c407052SMitsuru IWASAKI return; 3891f9390180SMitsuru IWASAKI 3892f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, NULL); 3893f9390180SMitsuru IWASAKI } 3894f9390180SMitsuru IWASAKI 3895f9390180SMitsuru IWASAKI SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, acpi_pm_register, 0); 3896