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 #ifdef SMP 50c66d2b38SJung-uk Kim #include <sys/sched.h> 51c66d2b38SJung-uk Kim #endif 52eeb3a05fSNate Lawson #include <sys/smp.h> 53c66d2b38SJung-uk Kim #include <sys/timetc.h> 5415e32d5dSMike Smith 55d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 56d320e05cSJohn Baldwin #include <machine/pci_cfgreg.h> 57d320e05cSJohn Baldwin #endif 5815e32d5dSMike Smith #include <machine/resource.h> 59dc750869SNate Lawson #include <machine/bus.h> 60dc750869SNate Lawson #include <sys/rman.h> 61bc0f2195SMike Smith #include <isa/isavar.h> 62c796e27bSNate Lawson #include <isa/pnpvar.h> 63bc0f2195SMike Smith 64129d3046SJung-uk Kim #include <contrib/dev/acpica/include/acpi.h> 65129d3046SJung-uk Kim #include <contrib/dev/acpica/include/accommon.h> 66129d3046SJung-uk Kim #include <contrib/dev/acpica/include/acnamesp.h> 67129d3046SJung-uk Kim 6815e32d5dSMike Smith #include <dev/acpica/acpivar.h> 6915e32d5dSMike Smith #include <dev/acpica/acpiio.h> 7015e32d5dSMike Smith 7110ce62b9SNate Lawson #include "pci_if.h" 7210ce62b9SNate Lawson #include <dev/pci/pcivar.h> 7310ce62b9SNate Lawson #include <dev/pci/pci_private.h> 7410ce62b9SNate Lawson 752be4e471SJung-uk Kim #include <vm/vm_param.h> 762be4e471SJung-uk Kim 7715e32d5dSMike Smith MALLOC_DEFINE(M_ACPIDEV, "acpidev", "ACPI devices"); 7815e32d5dSMike Smith 79be2b1797SNate Lawson /* Hooks for the ACPI CA debugging infrastructure */ 80cb9b0d80SMike Smith #define _COMPONENT ACPI_BUS 81b53f2771SMike Smith ACPI_MODULE_NAME("ACPI") 820ae55423SMike Smith 8315e32d5dSMike Smith static d_open_t acpiopen; 8415e32d5dSMike Smith static d_close_t acpiclose; 8515e32d5dSMike Smith static d_ioctl_t acpiioctl; 8615e32d5dSMike Smith 8715e32d5dSMike Smith static struct cdevsw acpi_cdevsw = { 88dc08ffecSPoul-Henning Kamp .d_version = D_VERSION, 897ac40f5fSPoul-Henning Kamp .d_open = acpiopen, 907ac40f5fSPoul-Henning Kamp .d_close = acpiclose, 917ac40f5fSPoul-Henning Kamp .d_ioctl = acpiioctl, 927ac40f5fSPoul-Henning Kamp .d_name = "acpi", 9315e32d5dSMike Smith }; 9415e32d5dSMike Smith 95346eda4fSNate Lawson /* Global mutex for locking access to the ACPI subsystem. */ 96cb9b0d80SMike Smith struct mtx acpi_mutex; 97cb9b0d80SMike Smith 9889fb5af8SNate Lawson /* Bitmap of device quirks. */ 9989fb5af8SNate Lawson int acpi_quirks; 10089fb5af8SNate Lawson 101a0e73a12SJung-uk Kim /* Supported sleep states. */ 102a0e73a12SJung-uk Kim static BOOLEAN acpi_sleep_states[ACPI_S_STATE_COUNT]; 103a0e73a12SJung-uk Kim 1046d63101aSMike Smith static int acpi_modevent(struct module *mod, int event, void *junk); 10515e32d5dSMike Smith static int acpi_probe(device_t dev); 10615e32d5dSMike Smith static int acpi_attach(device_t dev); 10710ce62b9SNate Lawson static int acpi_suspend(device_t dev); 10810ce62b9SNate Lawson static int acpi_resume(device_t dev); 109169b539aSNate Lawson static int acpi_shutdown(device_t dev); 110be2b1797SNate Lawson static device_t acpi_add_child(device_t bus, int order, const char *name, 111be2b1797SNate Lawson int unit); 11215e32d5dSMike Smith static int acpi_print_child(device_t bus, device_t child); 11310ce62b9SNate Lawson static void acpi_probe_nomatch(device_t bus, device_t child); 11410ce62b9SNate Lawson static void acpi_driver_added(device_t dev, driver_t *driver); 115be2b1797SNate Lawson static int acpi_read_ivar(device_t dev, device_t child, int index, 116be2b1797SNate Lawson uintptr_t *result); 117be2b1797SNate Lawson static int acpi_write_ivar(device_t dev, device_t child, int index, 118be2b1797SNate Lawson uintptr_t value); 11991233413SNate Lawson static struct resource_list *acpi_get_rlist(device_t dev, device_t child); 120adad4744SNate Lawson static int acpi_sysres_alloc(device_t dev); 121be2b1797SNate Lawson static struct resource *acpi_alloc_resource(device_t bus, device_t child, 122be2b1797SNate Lawson int type, int *rid, u_long start, u_long end, 123be2b1797SNate Lawson u_long count, u_int flags); 124be2b1797SNate Lawson static int acpi_release_resource(device_t bus, device_t child, int type, 125be2b1797SNate Lawson int rid, struct resource *r); 1268b28b622SNate Lawson static void acpi_delete_resource(device_t bus, device_t child, int type, 1278b28b622SNate Lawson int rid); 1281e4925e8SNate Lawson static uint32_t acpi_isa_get_logicalid(device_t dev); 1291e4925e8SNate Lawson static int acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count); 130ce619b2eSNate Lawson static char *acpi_device_id_probe(device_t bus, device_t dev, char **ids); 131ce619b2eSNate Lawson static ACPI_STATUS acpi_device_eval_obj(device_t bus, device_t dev, 132ce619b2eSNate Lawson ACPI_STRING pathname, ACPI_OBJECT_LIST *parameters, 133ce619b2eSNate Lawson ACPI_BUFFER *ret); 13410ce62b9SNate Lawson static int acpi_device_pwr_for_sleep(device_t bus, device_t dev, 13510ce62b9SNate Lawson int *dstate); 136df8d2a32SNate Lawson static ACPI_STATUS acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, 137df8d2a32SNate Lawson void *context, void **retval); 138df8d2a32SNate Lawson static ACPI_STATUS acpi_device_scan_children(device_t bus, device_t dev, 139df8d2a32SNate Lawson int max_depth, acpi_scan_cb_t user_fn, void *arg); 14010ce62b9SNate Lawson static int acpi_set_powerstate_method(device_t bus, device_t child, 14110ce62b9SNate Lawson int state); 142be2b1797SNate Lawson static int acpi_isa_pnp_probe(device_t bus, device_t child, 143be2b1797SNate Lawson struct isa_pnp_id *ids); 14415e32d5dSMike Smith static void acpi_probe_children(device_t bus); 145d227204dSJohn Baldwin static void acpi_probe_order(ACPI_HANDLE handle, int *order); 146be2b1797SNate Lawson static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level, 147be2b1797SNate Lawson void *context, void **status); 148ce619b2eSNate Lawson static BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid); 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); 154d4b9ff91SNate Lawson static int acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate); 155d4b9ff91SNate Lawson static int acpi_wake_run_prep(ACPI_HANDLE handle, int sstate); 156d4b9ff91SNate Lawson static int acpi_wake_prep_walk(int sstate); 15788a79fc0SNate Lawson static int acpi_wake_sysctl_walk(device_t dev); 15888a79fc0SNate Lawson static int acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS); 15915e32d5dSMike Smith static void acpi_system_eventhandler_sleep(void *arg, int state); 16015e32d5dSMike Smith static void acpi_system_eventhandler_wakeup(void *arg, int state); 161a0e73a12SJung-uk Kim static int acpi_sname2sstate(const char *sname); 162a0e73a12SJung-uk Kim static const char *acpi_sstate2sname(int sstate); 163d75de536SMitsuru IWASAKI static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); 1641d073b1dSJohn Baldwin static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); 165f9390180SMitsuru IWASAKI static int acpi_pm_func(u_long cmd, void *arg, ...); 166879d6c23STakanori Watanabe static int acpi_child_location_str_method(device_t acdev, device_t child, 167879d6c23STakanori Watanabe char *buf, size_t buflen); 168879d6c23STakanori Watanabe static int acpi_child_pnpinfo_str_method(device_t acdev, device_t child, 169879d6c23STakanori Watanabe char *buf, size_t buflen); 170d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 171d320e05cSJohn Baldwin static void acpi_enable_pcie(void); 172d320e05cSJohn Baldwin #endif 1730d484d24SJohn Baldwin static void acpi_hint_device_unit(device_t acdev, device_t child, 1740d484d24SJohn Baldwin const char *name, int *unitp); 175879d6c23STakanori Watanabe 17615e32d5dSMike Smith static device_method_t acpi_methods[] = { 17715e32d5dSMike Smith /* Device interface */ 17815e32d5dSMike Smith DEVMETHOD(device_probe, acpi_probe), 17915e32d5dSMike Smith DEVMETHOD(device_attach, acpi_attach), 180169b539aSNate Lawson DEVMETHOD(device_shutdown, acpi_shutdown), 18156a70eadSNate Lawson DEVMETHOD(device_detach, bus_generic_detach), 18210ce62b9SNate Lawson DEVMETHOD(device_suspend, acpi_suspend), 18310ce62b9SNate Lawson DEVMETHOD(device_resume, acpi_resume), 18415e32d5dSMike Smith 18515e32d5dSMike Smith /* Bus interface */ 18615e32d5dSMike Smith DEVMETHOD(bus_add_child, acpi_add_child), 18715e32d5dSMike Smith DEVMETHOD(bus_print_child, acpi_print_child), 18810ce62b9SNate Lawson DEVMETHOD(bus_probe_nomatch, acpi_probe_nomatch), 18910ce62b9SNate Lawson DEVMETHOD(bus_driver_added, acpi_driver_added), 19015e32d5dSMike Smith DEVMETHOD(bus_read_ivar, acpi_read_ivar), 19115e32d5dSMike Smith DEVMETHOD(bus_write_ivar, acpi_write_ivar), 19291233413SNate Lawson DEVMETHOD(bus_get_resource_list, acpi_get_rlist), 19391233413SNate Lawson DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 19491233413SNate Lawson DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 19515e32d5dSMike Smith DEVMETHOD(bus_alloc_resource, acpi_alloc_resource), 19615e32d5dSMike Smith DEVMETHOD(bus_release_resource, acpi_release_resource), 1978b28b622SNate Lawson DEVMETHOD(bus_delete_resource, acpi_delete_resource), 198879d6c23STakanori Watanabe DEVMETHOD(bus_child_pnpinfo_str, acpi_child_pnpinfo_str_method), 199879d6c23STakanori Watanabe DEVMETHOD(bus_child_location_str, acpi_child_location_str_method), 20015e32d5dSMike Smith DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 20115e32d5dSMike Smith DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 20215e32d5dSMike Smith DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 20315e32d5dSMike Smith DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 2040d484d24SJohn Baldwin DEVMETHOD(bus_hint_device_unit, acpi_hint_device_unit), 20515e32d5dSMike Smith 206ce619b2eSNate Lawson /* ACPI bus */ 207ce619b2eSNate Lawson DEVMETHOD(acpi_id_probe, acpi_device_id_probe), 208ce619b2eSNate Lawson DEVMETHOD(acpi_evaluate_object, acpi_device_eval_obj), 20910ce62b9SNate Lawson DEVMETHOD(acpi_pwr_for_sleep, acpi_device_pwr_for_sleep), 210df8d2a32SNate Lawson DEVMETHOD(acpi_scan_children, acpi_device_scan_children), 211ce619b2eSNate Lawson 21210ce62b9SNate Lawson /* PCI emulation */ 21310ce62b9SNate Lawson DEVMETHOD(pci_set_powerstate, acpi_set_powerstate_method), 21410ce62b9SNate Lawson 215bc0f2195SMike Smith /* ISA emulation */ 216bc0f2195SMike Smith DEVMETHOD(isa_pnp_probe, acpi_isa_pnp_probe), 217bc0f2195SMike Smith 21815e32d5dSMike Smith {0, 0} 21915e32d5dSMike Smith }; 22015e32d5dSMike Smith 22115e32d5dSMike Smith static driver_t acpi_driver = { 22215e32d5dSMike Smith "acpi", 22315e32d5dSMike Smith acpi_methods, 22415e32d5dSMike Smith sizeof(struct acpi_softc), 22515e32d5dSMike Smith }; 22615e32d5dSMike Smith 2273273b005SMike Smith static devclass_t acpi_devclass; 2286d63101aSMike Smith DRIVER_MODULE(acpi, nexus, acpi_driver, acpi_devclass, acpi_modevent, 0); 229a4ecd543SNate Lawson MODULE_VERSION(acpi, 1); 23015e32d5dSMike Smith 23115e2f34fSNate Lawson ACPI_SERIAL_DECL(acpi, "ACPI root bus"); 23215e2f34fSNate Lawson 233adad4744SNate Lawson /* Local pools for managing system resources for ACPI child devices. */ 234adad4744SNate Lawson static struct rman acpi_rman_io, acpi_rman_mem; 235adad4744SNate Lawson 236bee4aa4aSNate Lawson #define ACPI_MINIMUM_AWAKETIME 5 237bee4aa4aSNate Lawson 2385217af30SJohn Baldwin /* Holds the description of the acpi0 device. */ 2395217af30SJohn Baldwin static char acpi_desc[ACPI_OEM_ID_SIZE + ACPI_OEM_TABLE_ID_SIZE + 2]; 2405217af30SJohn Baldwin 241197b4dccSNate Lawson SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD, NULL, "ACPI debugging"); 2421d7b121cSNate Lawson static char acpi_ca_version[12]; 2431d7b121cSNate Lawson SYSCTL_STRING(_debug_acpi, OID_AUTO, acpi_ca_version, CTLFLAG_RD, 2441d7b121cSNate Lawson acpi_ca_version, 0, "Version of Intel ACPI-CA"); 24515e32d5dSMike Smith 24615e32d5dSMike Smith /* 247413081d7SNate Lawson * Allow override of whether methods execute in parallel or not. 248c9b8d77dSNate Lawson * Enable this for serial behavior, which fixes "AE_ALREADY_EXISTS" 249c9b8d77dSNate Lawson * errors for AML that really can't handle parallel method execution. 250c9b8d77dSNate Lawson * It is off by default since this breaks recursive methods and 251c9b8d77dSNate Lawson * some IBMs use such code. 252413081d7SNate Lawson */ 253c9b8d77dSNate Lawson static int acpi_serialize_methods; 254413081d7SNate Lawson TUNABLE_INT("hw.acpi.serialize_methods", &acpi_serialize_methods); 255413081d7SNate Lawson 25610ce62b9SNate Lawson /* Power devices off and on in suspend and resume. XXX Remove once tested. */ 25710ce62b9SNate Lawson static int acpi_do_powerstate = 1; 25810ce62b9SNate Lawson TUNABLE_INT("debug.acpi.do_powerstate", &acpi_do_powerstate); 25910ce62b9SNate Lawson SYSCTL_INT(_debug_acpi, OID_AUTO, do_powerstate, CTLFLAG_RW, 26010ce62b9SNate Lawson &acpi_do_powerstate, 1, "Turn off devices when suspending."); 26110ce62b9SNate Lawson 2620755473bSJung-uk Kim /* Reset system clock while resuming. XXX Remove once tested. */ 2630755473bSJung-uk Kim static int acpi_reset_clock = 1; 2640755473bSJung-uk Kim TUNABLE_INT("debug.acpi.reset_clock", &acpi_reset_clock); 2650755473bSJung-uk Kim SYSCTL_INT(_debug_acpi, OID_AUTO, reset_clock, CTLFLAG_RW, 2660755473bSJung-uk Kim &acpi_reset_clock, 1, "Reset system clock while resuming."); 2670755473bSJung-uk Kim 26839da3eb3SNate Lawson /* Allow users to override quirks. */ 26939da3eb3SNate Lawson TUNABLE_INT("debug.acpi.quirks", &acpi_quirks); 27039da3eb3SNate Lawson 27193bfd059SNate Lawson static int acpi_susp_bounce; 27293bfd059SNate Lawson SYSCTL_INT(_debug_acpi, OID_AUTO, suspend_bounce, CTLFLAG_RW, 27393bfd059SNate Lawson &acpi_susp_bounce, 0, "Don't actually suspend, just test devices."); 27493bfd059SNate Lawson 275c9b8d77dSNate Lawson /* 2766d63101aSMike Smith * ACPI can only be loaded as a module by the loader; activating it after 2776d63101aSMike Smith * system bootstrap time is not useful, and can be fatal to the system. 2788c0879b6SJohn Baldwin * It also cannot be unloaded, since the entire system bus hierarchy hangs 279be2b1797SNate Lawson * off it. 2806d63101aSMike Smith */ 2816d63101aSMike Smith static int 2826d63101aSMike Smith acpi_modevent(struct module *mod, int event, void *junk) 2836d63101aSMike Smith { 2846d63101aSMike Smith switch (event) { 2856d63101aSMike Smith case MOD_LOAD: 28687b45ed5SMitsuru IWASAKI if (!cold) { 28787b45ed5SMitsuru IWASAKI printf("The ACPI driver cannot be loaded after boot.\n"); 2886d63101aSMike Smith return (EPERM); 28987b45ed5SMitsuru IWASAKI } 2906d63101aSMike Smith break; 2916d63101aSMike Smith case MOD_UNLOAD: 292f9390180SMitsuru IWASAKI if (!cold && power_pm_get_type() == POWER_PM_TYPE_ACPI) 2936d63101aSMike Smith return (EBUSY); 294f9390180SMitsuru IWASAKI break; 2956d63101aSMike Smith default: 2966d63101aSMike Smith break; 2976d63101aSMike Smith } 2986d63101aSMike Smith return (0); 2996d63101aSMike Smith } 3006d63101aSMike Smith 3016d63101aSMike Smith /* 302bbc2815cSJohn Baldwin * Perform early initialization. 30315e32d5dSMike Smith */ 304bbc2815cSJohn Baldwin ACPI_STATUS 305bbc2815cSJohn Baldwin acpi_Startup(void) 30615e32d5dSMike Smith { 30789fb5af8SNate Lawson static int started = 0; 3082be4e471SJung-uk Kim ACPI_STATUS status; 3092be4e471SJung-uk Kim int val; 31015e32d5dSMike Smith 3111b8c233dSPeter Pentchev ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 3121b8c233dSPeter Pentchev 313bee4aa4aSNate Lawson /* Only run the startup code once. The MADT driver also calls this. */ 314bbc2815cSJohn Baldwin if (started) 3152be4e471SJung-uk Kim return_VALUE (AE_OK); 316bbc2815cSJohn Baldwin started = 1; 31715e32d5dSMike Smith 318413081d7SNate Lawson /* 3192be4e471SJung-uk Kim * Pre-allocate space for RSDT/XSDT and DSDT tables and allow resizing 3202be4e471SJung-uk Kim * if more tables exist. 321413081d7SNate Lawson */ 3222be4e471SJung-uk Kim if (ACPI_FAILURE(status = AcpiInitializeTables(NULL, 2, TRUE))) { 3232be4e471SJung-uk Kim printf("ACPI: Table initialisation failed: %s\n", 3242be4e471SJung-uk Kim AcpiFormatException(status)); 3252be4e471SJung-uk Kim return_VALUE (status); 32615e32d5dSMike Smith } 3273184cf5aSNate Lawson 32889fb5af8SNate Lawson /* Set up any quirks we have for this system. */ 3292be4e471SJung-uk Kim if (acpi_quirks == ACPI_Q_OK) 33089fb5af8SNate Lawson acpi_table_quirks(&acpi_quirks); 33189fb5af8SNate Lawson 33239da3eb3SNate Lawson /* If the user manually set the disabled hint to 0, force-enable ACPI. */ 33389fb5af8SNate Lawson if (resource_int_value("acpi", 0, "disabled", &val) == 0 && val == 0) 33489fb5af8SNate Lawson acpi_quirks &= ~ACPI_Q_BROKEN; 33589fb5af8SNate Lawson if (acpi_quirks & ACPI_Q_BROKEN) { 33689fb5af8SNate Lawson printf("ACPI disabled by blacklist. Contact your BIOS vendor.\n"); 3372be4e471SJung-uk Kim status = AE_SUPPORT; 33889fb5af8SNate Lawson } 3393184cf5aSNate Lawson 3402be4e471SJung-uk Kim return_VALUE (status); 341bbc2815cSJohn Baldwin } 342bbc2815cSJohn Baldwin 343bbc2815cSJohn Baldwin /* 3445217af30SJohn Baldwin * Detect ACPI and perform early initialisation. 345bbc2815cSJohn Baldwin */ 3465217af30SJohn Baldwin int 3475217af30SJohn Baldwin acpi_identify(void) 348bbc2815cSJohn Baldwin { 3495217af30SJohn Baldwin ACPI_TABLE_RSDP *rsdp; 3505217af30SJohn Baldwin ACPI_TABLE_HEADER *rsdt; 3515217af30SJohn Baldwin ACPI_PHYSICAL_ADDRESS paddr; 3525217af30SJohn Baldwin struct sbuf sb; 353bbc2815cSJohn Baldwin 354bbc2815cSJohn Baldwin ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 355bbc2815cSJohn Baldwin 356bbc2815cSJohn Baldwin if (!cold) 3575217af30SJohn Baldwin return (ENXIO); 358bbc2815cSJohn Baldwin 359bbc2815cSJohn Baldwin /* Check that we haven't been disabled with a hint. */ 360bbc2815cSJohn Baldwin if (resource_disabled("acpi", 0)) 3615217af30SJohn Baldwin return (ENXIO); 362bbc2815cSJohn Baldwin 3635217af30SJohn Baldwin /* Check for other PM systems. */ 3645217af30SJohn Baldwin if (power_pm_get_type() != POWER_PM_TYPE_NONE && 3655217af30SJohn Baldwin power_pm_get_type() != POWER_PM_TYPE_ACPI) { 3665217af30SJohn Baldwin printf("ACPI identify failed, other PM system enabled.\n"); 3675217af30SJohn Baldwin return (ENXIO); 3685217af30SJohn Baldwin } 3694b1ff978SMark Santcroos 3702be4e471SJung-uk Kim /* Initialize root tables. */ 3712be4e471SJung-uk Kim if (ACPI_FAILURE(acpi_Startup())) { 3722be4e471SJung-uk Kim printf("ACPI: Try disabling either ACPI or apic support.\n"); 3735217af30SJohn Baldwin return (ENXIO); 3742be4e471SJung-uk Kim } 37515e32d5dSMike Smith 3765217af30SJohn Baldwin if ((paddr = AcpiOsGetRootPointer()) == 0 || 3775217af30SJohn Baldwin (rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP))) == NULL) 3785217af30SJohn Baldwin return (ENXIO); 3795217af30SJohn Baldwin if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress != 0) 3805217af30SJohn Baldwin paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 3815217af30SJohn Baldwin else 3825217af30SJohn Baldwin paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 3835217af30SJohn Baldwin AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 3845217af30SJohn Baldwin 3855217af30SJohn Baldwin if ((rsdt = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER))) == NULL) 3865217af30SJohn Baldwin return (ENXIO); 3875217af30SJohn Baldwin sbuf_new(&sb, acpi_desc, sizeof(acpi_desc), SBUF_FIXEDLEN); 3885217af30SJohn Baldwin sbuf_bcat(&sb, rsdt->OemId, ACPI_OEM_ID_SIZE); 3895217af30SJohn Baldwin sbuf_trim(&sb); 3905217af30SJohn Baldwin sbuf_putc(&sb, ' '); 3915217af30SJohn Baldwin sbuf_bcat(&sb, rsdt->OemTableId, ACPI_OEM_TABLE_ID_SIZE); 3925217af30SJohn Baldwin sbuf_trim(&sb); 3935217af30SJohn Baldwin sbuf_finish(&sb); 3945217af30SJohn Baldwin sbuf_delete(&sb); 3955217af30SJohn Baldwin AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 3965217af30SJohn Baldwin 3975217af30SJohn Baldwin snprintf(acpi_ca_version, sizeof(acpi_ca_version), "%x", ACPI_CA_VERSION); 3985217af30SJohn Baldwin 3995217af30SJohn Baldwin return (0); 40015e32d5dSMike Smith } 40115e32d5dSMike Smith 40215e32d5dSMike Smith /* 403bee4aa4aSNate Lawson * Fetch some descriptive data from ACPI to put in our attach message. 40415e32d5dSMike Smith */ 40515e32d5dSMike Smith static int 40615e32d5dSMike Smith acpi_probe(device_t dev) 40715e32d5dSMike Smith { 40815e32d5dSMike Smith 409b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 410f9390180SMitsuru IWASAKI 4115217af30SJohn Baldwin device_set_desc(dev, acpi_desc); 412bee4aa4aSNate Lawson 4132be4e471SJung-uk Kim return_VALUE (0); 41415e32d5dSMike Smith } 41515e32d5dSMike Smith 41615e32d5dSMike Smith static int 41715e32d5dSMike Smith acpi_attach(device_t dev) 41815e32d5dSMike Smith { 41915e32d5dSMike Smith struct acpi_softc *sc; 420cb9b0d80SMike Smith ACPI_STATUS status; 421ea27c63eSNate Lawson int error, state; 42232d18aa5SMike Smith UINT32 flags; 423ea27c63eSNate Lawson UINT8 TypeA, TypeB; 424498d464fSMitsuru IWASAKI char *env; 42515e32d5dSMike Smith 426b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 427bee4aa4aSNate Lawson 42815e32d5dSMike Smith sc = device_get_softc(dev); 42915e32d5dSMike Smith sc->acpi_dev = dev; 43000a30448SNate Lawson callout_init(&sc->susp_force_to, TRUE); 43115e32d5dSMike Smith 4322be4e471SJung-uk Kim error = ENXIO; 4332be4e471SJung-uk Kim 43491233413SNate Lawson /* Initialize resource manager. */ 43591233413SNate Lawson acpi_rman_io.rm_type = RMAN_ARRAY; 43691233413SNate Lawson acpi_rman_io.rm_start = 0; 43791233413SNate Lawson acpi_rman_io.rm_end = 0xffff; 4380bba6acfSJohn Baldwin acpi_rman_io.rm_descr = "ACPI I/O ports"; 43991233413SNate Lawson if (rman_init(&acpi_rman_io) != 0) 44091233413SNate Lawson panic("acpi rman_init IO ports failed"); 44191233413SNate Lawson acpi_rman_mem.rm_type = RMAN_ARRAY; 44291233413SNate Lawson acpi_rman_mem.rm_start = 0; 44391233413SNate Lawson acpi_rman_mem.rm_end = ~0ul; 4440bba6acfSJohn Baldwin acpi_rman_mem.rm_descr = "ACPI I/O memory addresses"; 44591233413SNate Lawson if (rman_init(&acpi_rman_mem) != 0) 44691233413SNate Lawson panic("acpi rman_init memory failed"); 44791233413SNate Lawson 4482be4e471SJung-uk Kim /* Initialise the ACPI mutex */ 4492be4e471SJung-uk Kim mtx_init(&acpi_mutex, "ACPI global lock", NULL, MTX_DEF); 4502be4e471SJung-uk Kim 4512be4e471SJung-uk Kim /* 4522be4e471SJung-uk Kim * Set the globals from our tunables. This is needed because ACPI-CA 4532be4e471SJung-uk Kim * uses UINT8 for some values and we have no tunable_byte. 4542be4e471SJung-uk Kim */ 4552be4e471SJung-uk Kim AcpiGbl_AllMethodsSerialized = acpi_serialize_methods; 4562be4e471SJung-uk Kim AcpiGbl_EnableInterpreterSlack = TRUE; 4572be4e471SJung-uk Kim 4582be4e471SJung-uk Kim /* Start up the ACPI CA subsystem. */ 4592be4e471SJung-uk Kim status = AcpiInitializeSubsystem(); 4602be4e471SJung-uk Kim if (ACPI_FAILURE(status)) { 4612be4e471SJung-uk Kim device_printf(dev, "Could not initialize Subsystem: %s\n", 4622be4e471SJung-uk Kim AcpiFormatException(status)); 4632be4e471SJung-uk Kim goto out; 4642be4e471SJung-uk Kim } 4652be4e471SJung-uk Kim 4662be4e471SJung-uk Kim /* Load ACPI name space. */ 4672be4e471SJung-uk Kim status = AcpiLoadTables(); 4682be4e471SJung-uk Kim if (ACPI_FAILURE(status)) { 4692be4e471SJung-uk Kim device_printf(dev, "Could not load Namespace: %s\n", 4702be4e471SJung-uk Kim AcpiFormatException(status)); 4712be4e471SJung-uk Kim goto out; 4722be4e471SJung-uk Kim } 4732be4e471SJung-uk Kim 474d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 475d320e05cSJohn Baldwin /* Handle MCFG table if present. */ 476d320e05cSJohn Baldwin acpi_enable_pcie(); 477d320e05cSJohn Baldwin #endif 478d320e05cSJohn Baldwin 479be2b1797SNate Lawson /* Install the default address space handlers. */ 480be2b1797SNate Lawson status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 481be2b1797SNate Lawson ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 482be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 483be2b1797SNate Lawson device_printf(dev, "Could not initialise SystemMemory handler: %s\n", 484be2b1797SNate Lawson AcpiFormatException(status)); 485cb9b0d80SMike Smith goto out; 48615e32d5dSMike Smith } 487be2b1797SNate Lawson status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 488be2b1797SNate Lawson ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 489be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 490be2b1797SNate Lawson device_printf(dev, "Could not initialise SystemIO handler: %s\n", 491be2b1797SNate Lawson AcpiFormatException(status)); 492cb9b0d80SMike Smith goto out; 49315e32d5dSMike Smith } 494be2b1797SNate Lawson status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 495be2b1797SNate Lawson ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 496be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 497be2b1797SNate Lawson device_printf(dev, "could not initialise PciConfig handler: %s\n", 498be2b1797SNate Lawson AcpiFormatException(status)); 499cb9b0d80SMike Smith goto out; 50015e32d5dSMike Smith } 50115e32d5dSMike Smith 50215e32d5dSMike Smith /* 503be2b1797SNate Lawson * Note that some systems (specifically, those with namespace evaluation 504be2b1797SNate Lawson * issues that require the avoidance of parts of the namespace) must 505be2b1797SNate Lawson * avoid running _INI and _STA on everything, as well as dodging the final 506be2b1797SNate Lawson * object init pass. 50715e32d5dSMike Smith * 50832d18aa5SMike Smith * For these devices, we set ACPI_NO_DEVICE_INIT and ACPI_NO_OBJECT_INIT). 50932d18aa5SMike Smith * 510be2b1797SNate Lawson * XXX We should arrange for the object init pass after we have attached 511be2b1797SNate Lawson * all our child devices, but on many systems it works here. 51215e32d5dSMike Smith */ 51332d18aa5SMike Smith flags = 0; 514d786139cSMaxime Henrion if (testenv("debug.acpi.avoid")) 51532d18aa5SMike Smith flags = ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT; 516bee4aa4aSNate Lawson 517bee4aa4aSNate Lawson /* Bring the hardware and basic handlers online. */ 518b53f2771SMike Smith if (ACPI_FAILURE(status = AcpiEnableSubsystem(flags))) { 519be2b1797SNate Lawson device_printf(dev, "Could not enable ACPI: %s\n", 520be2b1797SNate Lawson AcpiFormatException(status)); 521cb9b0d80SMike Smith goto out; 52215e32d5dSMike Smith } 52315e32d5dSMike Smith 524f8335e3aSNate Lawson /* 525f8335e3aSNate Lawson * Call the ECDT probe function to provide EC functionality before 526f8335e3aSNate Lawson * the namespace has been evaluated. 527da72d149SNate Lawson * 528da72d149SNate Lawson * XXX This happens before the sysresource devices have been probed and 529da72d149SNate Lawson * attached so its resources come from nexus0. In practice, this isn't 530da72d149SNate Lawson * a problem but should be addressed eventually. 531f8335e3aSNate Lawson */ 532f8335e3aSNate Lawson acpi_ec_ecdt_probe(dev); 533f8335e3aSNate Lawson 534bee4aa4aSNate Lawson /* Bring device objects and regions online. */ 535b69ed3f4SMitsuru IWASAKI if (ACPI_FAILURE(status = AcpiInitializeObjects(flags))) { 536be2b1797SNate Lawson device_printf(dev, "Could not initialize ACPI objects: %s\n", 537be2b1797SNate Lawson AcpiFormatException(status)); 538b69ed3f4SMitsuru IWASAKI goto out; 539b69ed3f4SMitsuru IWASAKI } 540b69ed3f4SMitsuru IWASAKI 54115e32d5dSMike Smith /* 5421d073b1dSJohn Baldwin * Setup our sysctl tree. 5431d073b1dSJohn Baldwin * 5441d073b1dSJohn Baldwin * XXX: This doesn't check to make sure that none of these fail. 5451d073b1dSJohn Baldwin */ 5461d073b1dSJohn Baldwin sysctl_ctx_init(&sc->acpi_sysctl_ctx); 5471d073b1dSJohn Baldwin sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx, 5481d073b1dSJohn Baldwin SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 5491d073b1dSJohn Baldwin device_get_name(dev), CTLFLAG_RD, 0, ""); 5501d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 551d75de536SMitsuru IWASAKI OID_AUTO, "supported_sleep_state", CTLTYPE_STRING | CTLFLAG_RD, 552d75de536SMitsuru IWASAKI 0, 0, acpi_supported_sleep_state_sysctl, "A", ""); 553d75de536SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5541d073b1dSJohn Baldwin OID_AUTO, "power_button_state", CTLTYPE_STRING | CTLFLAG_RW, 5551d073b1dSJohn Baldwin &sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5561d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5571d073b1dSJohn Baldwin OID_AUTO, "sleep_button_state", CTLTYPE_STRING | CTLFLAG_RW, 5581d073b1dSJohn Baldwin &sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5591d073b1dSJohn Baldwin SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 5601d073b1dSJohn Baldwin OID_AUTO, "lid_switch_state", CTLTYPE_STRING | CTLFLAG_RW, 5611d073b1dSJohn Baldwin &sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A", ""); 562f86214b6SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 563f86214b6SMitsuru IWASAKI OID_AUTO, "standby_state", CTLTYPE_STRING | CTLFLAG_RW, 564f86214b6SMitsuru IWASAKI &sc->acpi_standby_sx, 0, acpi_sleep_state_sysctl, "A", ""); 565f86214b6SMitsuru IWASAKI SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 566f86214b6SMitsuru IWASAKI OID_AUTO, "suspend_state", CTLTYPE_STRING | CTLFLAG_RW, 567f86214b6SMitsuru IWASAKI &sc->acpi_suspend_sx, 0, acpi_sleep_state_sysctl, "A", ""); 5682d644607SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 569197b4dccSNate Lawson OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0, 570197b4dccSNate Lawson "sleep delay"); 571ff01efb5SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 572197b4dccSNate Lawson OID_AUTO, "s4bios", CTLFLAG_RW, &sc->acpi_s4bios, 0, "S4BIOS mode"); 5731611ea87SMitsuru IWASAKI SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 574197b4dccSNate Lawson OID_AUTO, "verbose", CTLFLAG_RW, &sc->acpi_verbose, 0, "verbose mode"); 575d85e6785SNate Lawson SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 576d85e6785SNate Lawson OID_AUTO, "disable_on_reboot", CTLFLAG_RW, 577d85e6785SNate Lawson &sc->acpi_do_disable, 0, "Disable ACPI when rebooting/halting system"); 578d1b16e18SNate Lawson SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), 579d1b16e18SNate Lawson OID_AUTO, "handle_reboot", CTLFLAG_RW, 580d1b16e18SNate Lawson &sc->acpi_handle_reboot, 0, "Use ACPI Reset Register to reboot"); 581bf0c18ecSNate Lawson 582bf0c18ecSNate Lawson /* 5832b9609abSNate Lawson * Default to 1 second before sleeping to give some machines time to 584bf0c18ecSNate Lawson * stabilize. 585bf0c18ecSNate Lawson */ 5862b9609abSNate Lawson sc->acpi_sleep_delay = 1; 5872d644607SMitsuru IWASAKI if (bootverbose) 5882d644607SMitsuru IWASAKI sc->acpi_verbose = 1; 589965a34fbSNate Lawson if ((env = getenv("hw.acpi.verbose")) != NULL) { 590965a34fbSNate Lawson if (strcmp(env, "0") != 0) 591498d464fSMitsuru IWASAKI sc->acpi_verbose = 1; 592498d464fSMitsuru IWASAKI freeenv(env); 593498d464fSMitsuru IWASAKI } 5941d073b1dSJohn Baldwin 5952d610c46SNate Lawson /* Only enable S4BIOS by default if the FACS says it is available. */ 596129d3046SJung-uk Kim if (AcpiGbl_FACS->Flags & ACPI_FACS_S4_BIOS_PRESENT) 5972d610c46SNate Lawson sc->acpi_s4bios = 1; 5982d610c46SNate Lawson 599a0e73a12SJung-uk Kim /* Probe all supported sleep states. */ 600a0e73a12SJung-uk Kim acpi_sleep_states[ACPI_STATE_S0] = TRUE; 601a0e73a12SJung-uk Kim for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++) 602a0e73a12SJung-uk Kim if (ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB))) 603a0e73a12SJung-uk Kim acpi_sleep_states[state] = TRUE; 604a0e73a12SJung-uk Kim 6051d073b1dSJohn Baldwin /* 606ea27c63eSNate Lawson * Dispatch the default sleep state to devices. The lid switch is set 607a0e73a12SJung-uk Kim * to UNKNOWN by default to avoid surprising users. 60815e32d5dSMike Smith */ 609a0e73a12SJung-uk Kim sc->acpi_power_button_sx = acpi_sleep_states[ACPI_STATE_S5] ? 610a0e73a12SJung-uk Kim ACPI_STATE_S5 : ACPI_STATE_UNKNOWN; 611a0e73a12SJung-uk Kim sc->acpi_lid_switch_sx = ACPI_STATE_UNKNOWN; 612a0e73a12SJung-uk Kim sc->acpi_standby_sx = acpi_sleep_states[ACPI_STATE_S1] ? 613a0e73a12SJung-uk Kim ACPI_STATE_S1 : ACPI_STATE_UNKNOWN; 614a0e73a12SJung-uk Kim sc->acpi_suspend_sx = acpi_sleep_states[ACPI_STATE_S3] ? 615a0e73a12SJung-uk Kim ACPI_STATE_S3 : ACPI_STATE_UNKNOWN; 61615e32d5dSMike Smith 617ea27c63eSNate Lawson /* Pick the first valid sleep state for the sleep button default. */ 618a0e73a12SJung-uk Kim sc->acpi_sleep_button_sx = ACPI_STATE_UNKNOWN; 61900a30448SNate Lawson for (state = ACPI_STATE_S1; state <= ACPI_STATE_S4; state++) 620a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) { 621ea27c63eSNate Lawson sc->acpi_sleep_button_sx = state; 622ea27c63eSNate Lawson break; 623ea27c63eSNate Lawson } 624ea27c63eSNate Lawson 62513d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(sc); 62615e32d5dSMike Smith 62715e32d5dSMike Smith /* 62815e32d5dSMike Smith * Scan the namespace and attach/initialise children. 62915e32d5dSMike Smith */ 63015e32d5dSMike Smith 63159e472e9SNate Lawson /* Register our shutdown handler. */ 632be2b1797SNate Lawson EVENTHANDLER_REGISTER(shutdown_final, acpi_shutdown_final, sc, 633be2b1797SNate Lawson SHUTDOWN_PRI_LAST); 63415e32d5dSMike Smith 63515e32d5dSMike Smith /* 63615e32d5dSMike Smith * Register our acpi event handlers. 63715e32d5dSMike Smith * XXX should be configurable eg. via userland policy manager. 63815e32d5dSMike Smith */ 639be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_sleep_event, acpi_system_eventhandler_sleep, 640be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 641be2b1797SNate Lawson EVENTHANDLER_REGISTER(acpi_wakeup_event, acpi_system_eventhandler_wakeup, 642be2b1797SNate Lawson sc, ACPI_EVENT_PRI_LAST); 64315e32d5dSMike Smith 644be2b1797SNate Lawson /* Flag our initial states. */ 645a0e73a12SJung-uk Kim sc->acpi_enabled = TRUE; 64615e32d5dSMike Smith sc->acpi_sstate = ACPI_STATE_S0; 647a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 64815e32d5dSMike Smith 649be2b1797SNate Lawson /* Create the control device */ 650a89fcf28STakanori Watanabe sc->acpi_dev_t = make_dev(&acpi_cdevsw, 0, UID_ROOT, GID_WHEEL, 0644, 6512a4689e8SRobert Watson "acpi"); 65215e32d5dSMike Smith sc->acpi_dev_t->si_drv1 = sc; 65315e32d5dSMike Smith 654be2b1797SNate Lawson if ((error = acpi_machdep_init(dev))) 655f86214b6SMitsuru IWASAKI goto out; 656f86214b6SMitsuru IWASAKI 657f9390180SMitsuru IWASAKI /* Register ACPI again to pass the correct argument of pm_func. */ 658f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, sc); 659f9390180SMitsuru IWASAKI 660eeb6dba2SJohn Baldwin if (!acpi_disabled("bus")) 661eeb6dba2SJohn Baldwin acpi_probe_children(dev); 662eeb6dba2SJohn Baldwin 663a0e73a12SJung-uk Kim /* Allow sleep request after a while. */ 664a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 665a0e73a12SJung-uk Kim 666cb9b0d80SMike Smith error = 0; 667cb9b0d80SMike Smith 668cb9b0d80SMike Smith out: 669cb9b0d80SMike Smith return_VALUE (error); 67015e32d5dSMike Smith } 67115e32d5dSMike Smith 672169b539aSNate Lawson static int 67310ce62b9SNate Lawson acpi_suspend(device_t dev) 67410ce62b9SNate Lawson { 67510ce62b9SNate Lawson device_t child, *devlist; 67610ce62b9SNate Lawson int error, i, numdevs, pstate; 67710ce62b9SNate Lawson 6785d3d03f1SNate Lawson GIANT_REQUIRED; 6795d3d03f1SNate Lawson 68010ce62b9SNate Lawson /* First give child devices a chance to suspend. */ 68110ce62b9SNate Lawson error = bus_generic_suspend(dev); 68210ce62b9SNate Lawson if (error) 68310ce62b9SNate Lawson return (error); 68410ce62b9SNate Lawson 68510ce62b9SNate Lawson /* 68610ce62b9SNate Lawson * Now, set them into the appropriate power state, usually D3. If the 68710ce62b9SNate Lawson * device has an _SxD method for the next sleep state, use that power 68810ce62b9SNate Lawson * state instead. 68910ce62b9SNate Lawson */ 690099ea4b5SWarner Losh error = device_get_children(dev, &devlist, &numdevs); 691099ea4b5SWarner Losh if (error) 692099ea4b5SWarner Losh return (error); 69310ce62b9SNate Lawson for (i = 0; i < numdevs; i++) { 69410ce62b9SNate Lawson /* If the device is not attached, we've powered it down elsewhere. */ 69510ce62b9SNate Lawson child = devlist[i]; 69610ce62b9SNate Lawson if (!device_is_attached(child)) 69710ce62b9SNate Lawson continue; 69810ce62b9SNate Lawson 69910ce62b9SNate Lawson /* 70010ce62b9SNate Lawson * Default to D3 for all sleep states. The _SxD method is optional 70110ce62b9SNate Lawson * so set the powerstate even if it's absent. 70210ce62b9SNate Lawson */ 70310ce62b9SNate Lawson pstate = PCI_POWERSTATE_D3; 70410ce62b9SNate Lawson error = acpi_device_pwr_for_sleep(device_get_parent(child), 70510ce62b9SNate Lawson child, &pstate); 70610ce62b9SNate Lawson if ((error == 0 || error == ESRCH) && acpi_do_powerstate) 70710ce62b9SNate Lawson pci_set_powerstate(child, pstate); 70810ce62b9SNate Lawson } 70910ce62b9SNate Lawson free(devlist, M_TEMP); 71010ce62b9SNate Lawson error = 0; 71110ce62b9SNate Lawson 71210ce62b9SNate Lawson return (error); 71310ce62b9SNate Lawson } 71410ce62b9SNate Lawson 71510ce62b9SNate Lawson static int 71610ce62b9SNate Lawson acpi_resume(device_t dev) 71710ce62b9SNate Lawson { 71810ce62b9SNate Lawson ACPI_HANDLE handle; 719099ea4b5SWarner Losh int i, numdevs, error; 72010ce62b9SNate Lawson device_t child, *devlist; 72110ce62b9SNate Lawson 7225d3d03f1SNate Lawson GIANT_REQUIRED; 7235d3d03f1SNate Lawson 72410ce62b9SNate Lawson /* 72510ce62b9SNate Lawson * Put all devices in D0 before resuming them. Call _S0D on each one 72610ce62b9SNate Lawson * since some systems expect this. 72710ce62b9SNate Lawson */ 728099ea4b5SWarner Losh error = device_get_children(dev, &devlist, &numdevs); 729099ea4b5SWarner Losh if (error) 730099ea4b5SWarner Losh return (error); 73110ce62b9SNate Lawson for (i = 0; i < numdevs; i++) { 73210ce62b9SNate Lawson child = devlist[i]; 73310ce62b9SNate Lawson handle = acpi_get_handle(child); 73410ce62b9SNate Lawson if (handle) 73510ce62b9SNate Lawson AcpiEvaluateObject(handle, "_S0D", NULL, NULL); 73610ce62b9SNate Lawson if (device_is_attached(child) && acpi_do_powerstate) 73710ce62b9SNate Lawson pci_set_powerstate(child, PCI_POWERSTATE_D0); 73810ce62b9SNate Lawson } 73910ce62b9SNate Lawson free(devlist, M_TEMP); 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 7485d3d03f1SNate Lawson GIANT_REQUIRED; 7495d3d03f1SNate Lawson 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 76615e32d5dSMike Smith acpi_add_child(device_t bus, 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 81596cf0b6dSWarner Losh pci_set_powerstate(child, PCI_POWERSTATE_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 83796cf0b6dSWarner Losh pci_set_powerstate(child, PCI_POWERSTATE_D0); 83810ce62b9SNate Lawson if (device_probe_and_attach(child) != 0) 83996cf0b6dSWarner Losh pci_set_powerstate(child, PCI_POWERSTATE_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 { 867247648afSTakanori Watanabe ACPI_BUFFER adbuf = {ACPI_ALLOCATE_BUFFER, NULL}; 86863600cc3SNate Lawson ACPI_DEVICE_INFO *adinfo; 86963600cc3SNate Lawson struct acpi_device *dinfo = device_get_ivars(child); 870247648afSTakanori Watanabe char *end; 871247648afSTakanori Watanabe int error; 872247648afSTakanori Watanabe 873247648afSTakanori Watanabe error = AcpiGetObjectInfo(dinfo->ad_handle, &adbuf); 874247648afSTakanori Watanabe adinfo = (ACPI_DEVICE_INFO *) adbuf.Pointer; 875247648afSTakanori Watanabe if (error) 876d40c0f53SNate Lawson snprintf(buf, buflen, "unknown"); 877247648afSTakanori Watanabe else 878247648afSTakanori Watanabe snprintf(buf, buflen, "_HID=%s _UID=%lu", 879247648afSTakanori Watanabe (adinfo->Valid & ACPI_VALID_HID) ? 880d40c0f53SNate Lawson adinfo->HardwareId.Value : "none", 88163600cc3SNate Lawson (adinfo->Valid & ACPI_VALID_UID) ? 88263600cc3SNate Lawson strtoul(adinfo->UniqueId.Value, &end, 10) : 0); 883247648afSTakanori Watanabe if (adinfo) 884247648afSTakanori Watanabe AcpiOsFree(adinfo); 885247648afSTakanori Watanabe 886247648afSTakanori Watanabe return (0); 887247648afSTakanori Watanabe } 888247648afSTakanori Watanabe 889247648afSTakanori Watanabe /* 89015e32d5dSMike Smith * Handle per-device ivars 89115e32d5dSMike Smith */ 89215e32d5dSMike Smith static int 89315e32d5dSMike Smith acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) 89415e32d5dSMike Smith { 89515e32d5dSMike Smith struct acpi_device *ad; 89615e32d5dSMike Smith 89715e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 8982d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 89915e32d5dSMike Smith return (ENOENT); 90015e32d5dSMike Smith } 90115e32d5dSMike Smith 902be2b1797SNate Lawson /* ACPI and ISA compatibility ivars */ 90315e32d5dSMike Smith switch(index) { 90415e32d5dSMike Smith case ACPI_IVAR_HANDLE: 90515e32d5dSMike Smith *(ACPI_HANDLE *)result = ad->ad_handle; 90615e32d5dSMike Smith break; 90715e32d5dSMike Smith case ACPI_IVAR_MAGIC: 90870fa7bc0SNate Lawson *(uintptr_t *)result = ad->ad_magic; 90915e32d5dSMike Smith break; 91015e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 91115e32d5dSMike Smith *(void **)result = ad->ad_private; 91215e32d5dSMike Smith break; 913d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 914d4b9ff91SNate Lawson *(int *)result = ad->ad_flags; 915d4b9ff91SNate Lawson break; 91632d18aa5SMike Smith case ISA_IVAR_VENDORID: 91732d18aa5SMike Smith case ISA_IVAR_SERIAL: 91832d18aa5SMike Smith case ISA_IVAR_COMPATID: 91932d18aa5SMike Smith *(int *)result = -1; 92032d18aa5SMike Smith break; 92132d18aa5SMike Smith case ISA_IVAR_LOGICALID: 92232d18aa5SMike Smith *(int *)result = acpi_isa_get_logicalid(child); 92332d18aa5SMike Smith break; 92415e32d5dSMike Smith default: 92515e32d5dSMike Smith return (ENOENT); 92615e32d5dSMike Smith } 927be2b1797SNate Lawson 92815e32d5dSMike Smith return (0); 92915e32d5dSMike Smith } 93015e32d5dSMike Smith 93115e32d5dSMike Smith static int 93215e32d5dSMike Smith acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value) 93315e32d5dSMike Smith { 93415e32d5dSMike Smith struct acpi_device *ad; 93515e32d5dSMike Smith 93615e32d5dSMike Smith if ((ad = device_get_ivars(child)) == NULL) { 9372d0c82e8SJung-uk Kim device_printf(child, "device has no ivars\n"); 93815e32d5dSMike Smith return (ENOENT); 93915e32d5dSMike Smith } 94015e32d5dSMike Smith 94115e32d5dSMike Smith switch(index) { 94215e32d5dSMike Smith case ACPI_IVAR_HANDLE: 94315e32d5dSMike Smith ad->ad_handle = (ACPI_HANDLE)value; 94415e32d5dSMike Smith break; 94515e32d5dSMike Smith case ACPI_IVAR_MAGIC: 94670fa7bc0SNate Lawson ad->ad_magic = (uintptr_t)value; 94715e32d5dSMike Smith break; 94815e32d5dSMike Smith case ACPI_IVAR_PRIVATE: 94915e32d5dSMike Smith ad->ad_private = (void *)value; 95015e32d5dSMike Smith break; 951d4b9ff91SNate Lawson case ACPI_IVAR_FLAGS: 952d4b9ff91SNate Lawson ad->ad_flags = (int)value; 953d4b9ff91SNate Lawson break; 95415e32d5dSMike Smith default: 9552ab060eeSWarner Losh panic("bad ivar write request (%d)", index); 95615e32d5dSMike Smith return (ENOENT); 95715e32d5dSMike Smith } 958be2b1797SNate Lawson 95915e32d5dSMike Smith return (0); 96015e32d5dSMike Smith } 96115e32d5dSMike Smith 96215e32d5dSMike Smith /* 96315e32d5dSMike Smith * Handle child resource allocation/removal 96415e32d5dSMike Smith */ 96591233413SNate Lawson static struct resource_list * 96691233413SNate Lawson acpi_get_rlist(device_t dev, device_t child) 96715e32d5dSMike Smith { 96891233413SNate Lawson struct acpi_device *ad; 96915e32d5dSMike Smith 97091233413SNate Lawson ad = device_get_ivars(child); 97191233413SNate Lawson return (&ad->ad_rl); 97215e32d5dSMike Smith } 97315e32d5dSMike Smith 9740d484d24SJohn Baldwin static int 9750d484d24SJohn Baldwin acpi_match_resource_hint(device_t dev, int type, long value) 9760d484d24SJohn Baldwin { 9770d484d24SJohn Baldwin struct acpi_device *ad = device_get_ivars(dev); 9780d484d24SJohn Baldwin struct resource_list *rl = &ad->ad_rl; 9790d484d24SJohn Baldwin struct resource_list_entry *rle; 9800d484d24SJohn Baldwin 9810d484d24SJohn Baldwin STAILQ_FOREACH(rle, rl, link) { 9820d484d24SJohn Baldwin if (rle->type != type) 9830d484d24SJohn Baldwin continue; 9840d484d24SJohn Baldwin if (rle->start <= value && rle->end >= value) 9850d484d24SJohn Baldwin return (1); 9860d484d24SJohn Baldwin } 9870d484d24SJohn Baldwin return (0); 9880d484d24SJohn Baldwin } 9890d484d24SJohn Baldwin 9900d484d24SJohn Baldwin /* 9910d484d24SJohn Baldwin * Wire device unit numbers based on resource matches in hints. 9920d484d24SJohn Baldwin */ 9930d484d24SJohn Baldwin static void 9940d484d24SJohn Baldwin acpi_hint_device_unit(device_t acdev, device_t child, const char *name, 9950d484d24SJohn Baldwin int *unitp) 9960d484d24SJohn Baldwin { 9970d484d24SJohn Baldwin const char *s; 9980d484d24SJohn Baldwin long value; 9990d484d24SJohn Baldwin int line, matches, unit; 10000d484d24SJohn Baldwin 10010d484d24SJohn Baldwin /* 10020d484d24SJohn Baldwin * Iterate over all the hints for the devices with the specified 10030d484d24SJohn Baldwin * name to see if one's resources are a subset of this device. 10040d484d24SJohn Baldwin */ 10050d484d24SJohn Baldwin line = 0; 10060d484d24SJohn Baldwin for (;;) { 10070d484d24SJohn Baldwin if (resource_find_dev(&line, name, &unit, "at", NULL) != 0) 10080d484d24SJohn Baldwin break; 10090d484d24SJohn Baldwin 10100d484d24SJohn Baldwin /* Must have an "at" for acpi or isa. */ 10110d484d24SJohn Baldwin resource_string_value(name, unit, "at", &s); 10120d484d24SJohn Baldwin if (!(strcmp(s, "acpi0") == 0 || strcmp(s, "acpi") == 0 || 10130d484d24SJohn Baldwin strcmp(s, "isa0") == 0 || strcmp(s, "isa") == 0)) 10140d484d24SJohn Baldwin continue; 10150d484d24SJohn Baldwin 10160d484d24SJohn Baldwin /* 10170d484d24SJohn Baldwin * Check for matching resources. We must have at least one, 10180d484d24SJohn Baldwin * and all resources specified have to match. 10190d484d24SJohn Baldwin * 10200d484d24SJohn Baldwin * XXX: We may want to revisit this to be more lenient and wire 10210d484d24SJohn Baldwin * as long as it gets one match. 10220d484d24SJohn Baldwin */ 10230d484d24SJohn Baldwin matches = 0; 10240d484d24SJohn Baldwin if (resource_long_value(name, unit, "port", &value) == 0) { 10250d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IOPORT, value)) 10260d484d24SJohn Baldwin matches++; 10270d484d24SJohn Baldwin else 10280d484d24SJohn Baldwin continue; 10290d484d24SJohn Baldwin } 10300d484d24SJohn Baldwin if (resource_long_value(name, unit, "maddr", &value) == 0) { 10310d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_MEMORY, value)) 10320d484d24SJohn Baldwin matches++; 10330d484d24SJohn Baldwin else 10340d484d24SJohn Baldwin continue; 10350d484d24SJohn Baldwin } 10360d484d24SJohn Baldwin if (resource_long_value(name, unit, "irq", &value) == 0) { 10370d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_IRQ, value)) 10380d484d24SJohn Baldwin matches++; 10390d484d24SJohn Baldwin else 10400d484d24SJohn Baldwin continue; 10410d484d24SJohn Baldwin } 10420d484d24SJohn Baldwin if (resource_long_value(name, unit, "drq", &value) == 0) { 10430d484d24SJohn Baldwin if (acpi_match_resource_hint(child, SYS_RES_DRQ, value)) 10440d484d24SJohn Baldwin matches++; 10450d484d24SJohn Baldwin else 10460d484d24SJohn Baldwin continue; 10470d484d24SJohn Baldwin } 10480d484d24SJohn Baldwin 10490d484d24SJohn Baldwin if (matches > 0) { 10500d484d24SJohn Baldwin /* We have a winner! */ 10510d484d24SJohn Baldwin *unitp = unit; 10520d484d24SJohn Baldwin break; 10530d484d24SJohn Baldwin } 10540d484d24SJohn Baldwin } 10550d484d24SJohn Baldwin } 10560d484d24SJohn Baldwin 1057adad4744SNate Lawson /* 1058adad4744SNate Lawson * Pre-allocate/manage all memory and IO resources. Since rman can't handle 1059adad4744SNate Lawson * duplicates, we merge any in the sysresource attach routine. 1060adad4744SNate Lawson */ 1061adad4744SNate Lawson static int 1062adad4744SNate Lawson acpi_sysres_alloc(device_t dev) 1063adad4744SNate Lawson { 1064adad4744SNate Lawson struct resource *res; 1065adad4744SNate Lawson struct resource_list *rl; 1066adad4744SNate Lawson struct resource_list_entry *rle; 1067adad4744SNate Lawson struct rman *rm; 1068da72d149SNate Lawson char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 1069da72d149SNate Lawson device_t *children; 1070da72d149SNate Lawson int child_count, i; 1071da72d149SNate Lawson 1072da72d149SNate Lawson /* 1073da72d149SNate Lawson * Probe/attach any sysresource devices. This would be unnecessary if we 1074da72d149SNate Lawson * had multi-pass probe/attach. 1075da72d149SNate Lawson */ 1076da72d149SNate Lawson if (device_get_children(dev, &children, &child_count) != 0) 1077da72d149SNate Lawson return (ENXIO); 1078da72d149SNate Lawson for (i = 0; i < child_count; i++) { 1079da72d149SNate Lawson if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) 1080da72d149SNate Lawson device_probe_and_attach(children[i]); 1081da72d149SNate Lawson } 1082da72d149SNate Lawson free(children, M_TEMP); 1083adad4744SNate Lawson 1084adad4744SNate Lawson rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 1085be1bf4d2SPoul-Henning Kamp STAILQ_FOREACH(rle, rl, link) { 1086adad4744SNate Lawson if (rle->res != NULL) { 1087adad4744SNate Lawson device_printf(dev, "duplicate resource for %lx\n", rle->start); 1088adad4744SNate Lawson continue; 1089adad4744SNate Lawson } 1090adad4744SNate Lawson 1091adad4744SNate Lawson /* Only memory and IO resources are valid here. */ 1092adad4744SNate Lawson switch (rle->type) { 1093adad4744SNate Lawson case SYS_RES_IOPORT: 1094adad4744SNate Lawson rm = &acpi_rman_io; 1095adad4744SNate Lawson break; 1096adad4744SNate Lawson case SYS_RES_MEMORY: 1097adad4744SNate Lawson rm = &acpi_rman_mem; 1098adad4744SNate Lawson break; 1099adad4744SNate Lawson default: 1100adad4744SNate Lawson continue; 1101adad4744SNate Lawson } 1102adad4744SNate Lawson 1103adad4744SNate Lawson /* Pre-allocate resource and add to our rman pool. */ 1104adad4744SNate Lawson res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, rle->type, 1105adad4744SNate Lawson &rle->rid, rle->start, rle->start + rle->count - 1, rle->count, 0); 1106adad4744SNate Lawson if (res != NULL) { 1107adad4744SNate Lawson rman_manage_region(rm, rman_get_start(res), rman_get_end(res)); 1108adad4744SNate Lawson rle->res = res; 1109adad4744SNate Lawson } else 1110adad4744SNate Lawson device_printf(dev, "reservation of %lx, %lx (%d) failed\n", 1111adad4744SNate Lawson rle->start, rle->count, rle->type); 1112adad4744SNate Lawson } 1113adad4744SNate Lawson return (0); 1114adad4744SNate Lawson } 1115adad4744SNate Lawson 111615e32d5dSMike Smith static struct resource * 111715e32d5dSMike Smith acpi_alloc_resource(device_t bus, device_t child, int type, int *rid, 111815e32d5dSMike Smith u_long start, u_long end, u_long count, u_int flags) 111915e32d5dSMike Smith { 112095957f62SJohn Baldwin ACPI_RESOURCE ares; 112115e32d5dSMike Smith struct acpi_device *ad = device_get_ivars(child); 112215e32d5dSMike Smith struct resource_list *rl = &ad->ad_rl; 112391233413SNate Lawson struct resource_list_entry *rle; 112491233413SNate Lawson struct resource *res; 112591233413SNate Lawson struct rman *rm; 112615e32d5dSMike Smith 112715e2f34fSNate Lawson res = NULL; 1128397c30a8SJohn Baldwin 1129397c30a8SJohn Baldwin /* We only handle memory and IO resources through rman. */ 1130397c30a8SJohn Baldwin switch (type) { 1131397c30a8SJohn Baldwin case SYS_RES_IOPORT: 1132397c30a8SJohn Baldwin rm = &acpi_rman_io; 1133397c30a8SJohn Baldwin break; 1134397c30a8SJohn Baldwin case SYS_RES_MEMORY: 1135397c30a8SJohn Baldwin rm = &acpi_rman_mem; 1136397c30a8SJohn Baldwin break; 1137397c30a8SJohn Baldwin default: 1138397c30a8SJohn Baldwin rm = NULL; 1139397c30a8SJohn Baldwin } 1140397c30a8SJohn Baldwin 114115e2f34fSNate Lawson ACPI_SERIAL_BEGIN(acpi); 114215e2f34fSNate Lawson 114391233413SNate Lawson /* 114491233413SNate Lawson * If this is an allocation of the "default" range for a given RID, and 114591233413SNate Lawson * we know what the resources for this device are (i.e., they're on the 114691233413SNate Lawson * child's resource list), use those start/end values. 114791233413SNate Lawson */ 1148f09aa88cSWarner Losh if (bus == device_get_parent(child) && start == 0UL && end == ~0UL) { 114991233413SNate Lawson rle = resource_list_find(rl, type, *rid); 115091233413SNate Lawson if (rle == NULL) 115115e2f34fSNate Lawson goto out; 115291233413SNate Lawson start = rle->start; 115391233413SNate Lawson end = rle->end; 115491233413SNate Lawson count = rle->count; 115591233413SNate Lawson } 115691233413SNate Lawson 1157397c30a8SJohn Baldwin /* 1158397c30a8SJohn Baldwin * If this is an allocation of a specific range, see if we can satisfy 1159397c30a8SJohn Baldwin * the request from our system resource regions. If we can't, pass the 1160397c30a8SJohn Baldwin * request up to the parent. 1161397c30a8SJohn Baldwin */ 1162147c0ad0SJohn Baldwin if (start + count - 1 == end && rm != NULL) 1163397c30a8SJohn Baldwin res = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, 1164397c30a8SJohn Baldwin child); 1165397c30a8SJohn Baldwin if (res == NULL) { 116695957f62SJohn Baldwin res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid, 116795957f62SJohn Baldwin start, end, count, flags); 116895957f62SJohn Baldwin } else { 1169c3f861f4SWarner Losh rman_set_rid(res, *rid); 117091233413SNate Lawson 117191233413SNate Lawson /* If requested, activate the resource using the parent's method. */ 117295957f62SJohn Baldwin if (flags & RF_ACTIVE) 117391233413SNate Lawson if (bus_activate_resource(child, type, *rid, res) != 0) { 117491233413SNate Lawson rman_release_resource(res); 117515e2f34fSNate Lawson res = NULL; 117615e2f34fSNate Lawson goto out; 117791233413SNate Lawson } 117895957f62SJohn Baldwin } 117991233413SNate Lawson 118095957f62SJohn Baldwin if (res != NULL && device_get_parent(child) == bus) 118195957f62SJohn Baldwin switch (type) { 118295957f62SJohn Baldwin case SYS_RES_IRQ: 118395957f62SJohn Baldwin /* 118495957f62SJohn Baldwin * Since bus_config_intr() takes immediate effect, we cannot 118595957f62SJohn Baldwin * configure the interrupt associated with a device when we 118695957f62SJohn Baldwin * parse the resources but have to defer it until a driver 118795957f62SJohn Baldwin * actually allocates the interrupt via bus_alloc_resource(). 118895957f62SJohn Baldwin * 118995957f62SJohn Baldwin * XXX: Should we handle the lookup failing? 119095957f62SJohn Baldwin */ 119195957f62SJohn Baldwin if (ACPI_SUCCESS(acpi_lookup_irq_resource(child, *rid, res, &ares))) 119295957f62SJohn Baldwin acpi_config_intr(child, &ares); 119395957f62SJohn Baldwin break; 119495957f62SJohn Baldwin } 119515e2f34fSNate Lawson 119615e2f34fSNate Lawson out: 119715e2f34fSNate Lawson ACPI_SERIAL_END(acpi); 119891233413SNate Lawson return (res); 119915e32d5dSMike Smith } 120015e32d5dSMike Smith 120115e32d5dSMike Smith static int 120291233413SNate Lawson acpi_release_resource(device_t bus, device_t child, int type, int rid, 120391233413SNate Lawson struct resource *r) 120415e32d5dSMike Smith { 1205397c30a8SJohn Baldwin struct rman *rm; 120691233413SNate Lawson int ret; 120715e32d5dSMike Smith 1208397c30a8SJohn Baldwin /* We only handle memory and IO resources through rman. */ 1209397c30a8SJohn Baldwin switch (type) { 1210397c30a8SJohn Baldwin case SYS_RES_IOPORT: 1211397c30a8SJohn Baldwin rm = &acpi_rman_io; 1212397c30a8SJohn Baldwin break; 1213397c30a8SJohn Baldwin case SYS_RES_MEMORY: 1214397c30a8SJohn Baldwin rm = &acpi_rman_mem; 1215397c30a8SJohn Baldwin break; 1216397c30a8SJohn Baldwin default: 1217397c30a8SJohn Baldwin rm = NULL; 1218397c30a8SJohn Baldwin } 1219397c30a8SJohn Baldwin 122015e2f34fSNate Lawson ACPI_SERIAL_BEGIN(acpi); 122115e2f34fSNate Lawson 122291233413SNate Lawson /* 1223397c30a8SJohn Baldwin * If this resource belongs to one of our internal managers, 1224397c30a8SJohn Baldwin * deactivate it and release it to the local pool. If it doesn't, 1225397c30a8SJohn Baldwin * pass this request up to the parent. 122691233413SNate Lawson */ 1227397c30a8SJohn Baldwin if (rm != NULL && rman_is_region_manager(r, rm)) { 122891233413SNate Lawson if (rman_get_flags(r) & RF_ACTIVE) { 122991233413SNate Lawson ret = bus_deactivate_resource(child, type, rid, r); 123091233413SNate Lawson if (ret != 0) 123115e2f34fSNate Lawson goto out; 123291233413SNate Lawson } 123391233413SNate Lawson ret = rman_release_resource(r); 123491233413SNate Lawson } else 123591233413SNate Lawson ret = BUS_RELEASE_RESOURCE(device_get_parent(bus), child, type, rid, r); 123691233413SNate Lawson 123715e2f34fSNate Lawson out: 123815e2f34fSNate Lawson ACPI_SERIAL_END(acpi); 123991233413SNate Lawson return (ret); 124015e32d5dSMike Smith } 124115e32d5dSMike Smith 12428b28b622SNate Lawson static void 12438b28b622SNate Lawson acpi_delete_resource(device_t bus, device_t child, int type, int rid) 12448b28b622SNate Lawson { 12458b28b622SNate Lawson struct resource_list *rl; 12468b28b622SNate Lawson 12478b28b622SNate Lawson rl = acpi_get_rlist(bus, child); 12488b28b622SNate Lawson resource_list_delete(rl, type, rid); 12498b28b622SNate Lawson } 12508b28b622SNate Lawson 1251dc750869SNate Lawson /* Allocate an IO port or memory resource, given its GAS. */ 1252e1c4bf3fSNate Lawson int 1253e1c4bf3fSNate Lawson acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas, 1254907b6777SNate Lawson struct resource **res, u_int flags) 1255dc750869SNate Lawson { 1256e1c4bf3fSNate Lawson int error, res_type; 1257dc750869SNate Lawson 1258e1c4bf3fSNate Lawson error = ENOMEM; 12598f118e25SNate Lawson if (type == NULL || rid == NULL || gas == NULL || res == NULL) 1260e1c4bf3fSNate Lawson return (EINVAL); 1261dc750869SNate Lawson 12628f118e25SNate Lawson /* We only support memory and IO spaces. */ 12632be4e471SJung-uk Kim switch (gas->SpaceId) { 1264dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_MEMORY: 1265e1c4bf3fSNate Lawson res_type = SYS_RES_MEMORY; 1266dc750869SNate Lawson break; 1267dc750869SNate Lawson case ACPI_ADR_SPACE_SYSTEM_IO: 1268e1c4bf3fSNate Lawson res_type = SYS_RES_IOPORT; 1269dc750869SNate Lawson break; 1270dc750869SNate Lawson default: 1271e1c4bf3fSNate Lawson return (EOPNOTSUPP); 1272dc750869SNate Lawson } 1273dc750869SNate Lawson 12742fe912dfSNate Lawson /* 1275f45fc848SNate Lawson * If the register width is less than 8, assume the BIOS author means 1276f45fc848SNate Lawson * it is a bit field and just allocate a byte. 12772fe912dfSNate Lawson */ 12782be4e471SJung-uk Kim if (gas->BitWidth && gas->BitWidth < 8) 12792be4e471SJung-uk Kim gas->BitWidth = 8; 12802fe912dfSNate Lawson 12818f118e25SNate Lawson /* Validate the address after we're sure we support the space. */ 12822be4e471SJung-uk Kim if (gas->Address == 0 || gas->BitWidth == 0) 12838f118e25SNate Lawson return (EINVAL); 12848f118e25SNate Lawson 1285e1c4bf3fSNate Lawson bus_set_resource(dev, res_type, *rid, gas->Address, 12862be4e471SJung-uk Kim gas->BitWidth / 8); 1287907b6777SNate Lawson *res = bus_alloc_resource_any(dev, res_type, rid, RF_ACTIVE | flags); 1288e1c4bf3fSNate Lawson if (*res != NULL) { 1289e1c4bf3fSNate Lawson *type = res_type; 1290e1c4bf3fSNate Lawson error = 0; 1291ca2c69c8SNate Lawson } else 1292ca2c69c8SNate Lawson bus_delete_resource(dev, res_type, *rid); 1293ca2c69c8SNate Lawson 1294e1c4bf3fSNate Lawson return (error); 1295dc750869SNate Lawson } 1296dc750869SNate Lawson 1297c796e27bSNate Lawson /* Probe _HID and _CID for compatible ISA PNP ids. */ 12981e4925e8SNate Lawson static uint32_t 129932d18aa5SMike Smith acpi_isa_get_logicalid(device_t dev) 1300bc0f2195SMike Smith { 13011e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 13021e4925e8SNate Lawson ACPI_BUFFER buf; 1303bc0f2195SMike Smith ACPI_HANDLE h; 1304bc0f2195SMike Smith ACPI_STATUS error; 1305bc0f2195SMike Smith u_int32_t pnpid; 130632d18aa5SMike Smith 1307b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 130832d18aa5SMike Smith 130932d18aa5SMike Smith pnpid = 0; 1310bd189fe7SNate Lawson buf.Pointer = NULL; 1311bd189fe7SNate Lawson buf.Length = ACPI_ALLOCATE_BUFFER; 1312bd189fe7SNate Lawson 13136fca9360SNate Lawson /* Fetch and validate the HID. */ 131432d18aa5SMike Smith if ((h = acpi_get_handle(dev)) == NULL) 1315bd189fe7SNate Lawson goto out; 13166fca9360SNate Lawson error = AcpiGetObjectInfo(h, &buf); 13176fca9360SNate Lawson if (ACPI_FAILURE(error)) 1318bd189fe7SNate Lawson goto out; 13191e4925e8SNate Lawson devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; 132032d18aa5SMike Smith 13211e4925e8SNate Lawson if ((devinfo->Valid & ACPI_VALID_HID) != 0) 13221e4925e8SNate Lawson pnpid = PNP_EISAID(devinfo->HardwareId.Value); 1323be2b1797SNate Lawson 1324bd189fe7SNate Lawson out: 1325bd189fe7SNate Lawson if (buf.Pointer != NULL) 13261e4925e8SNate Lawson AcpiOsFree(buf.Pointer); 132732d18aa5SMike Smith return_VALUE (pnpid); 132832d18aa5SMike Smith } 132932d18aa5SMike Smith 13301e4925e8SNate Lawson static int 13311e4925e8SNate Lawson acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count) 1332b2566207STakanori Watanabe { 13331e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 13341e4925e8SNate Lawson ACPI_BUFFER buf; 1335b2566207STakanori Watanabe ACPI_HANDLE h; 1336b2566207STakanori Watanabe ACPI_STATUS error; 13371e4925e8SNate Lawson uint32_t *pnpid; 13381e4925e8SNate Lawson int valid, i; 1339b2566207STakanori Watanabe 1340b2566207STakanori Watanabe ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1341b2566207STakanori Watanabe 13421e4925e8SNate Lawson pnpid = cids; 13431e4925e8SNate Lawson valid = 0; 1344bd189fe7SNate Lawson buf.Pointer = NULL; 1345bd189fe7SNate Lawson buf.Length = ACPI_ALLOCATE_BUFFER; 1346bd189fe7SNate Lawson 13471e4925e8SNate Lawson /* Fetch and validate the CID */ 1348b2566207STakanori Watanabe if ((h = acpi_get_handle(dev)) == NULL) 1349bd189fe7SNate Lawson goto out; 13501e4925e8SNate Lawson error = AcpiGetObjectInfo(h, &buf); 13511e4925e8SNate Lawson if (ACPI_FAILURE(error)) 1352bd189fe7SNate Lawson goto out; 13531e4925e8SNate Lawson devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; 13541e4925e8SNate Lawson if ((devinfo->Valid & ACPI_VALID_CID) == 0) 1355b2566207STakanori Watanabe goto out; 1356b2566207STakanori Watanabe 13571e4925e8SNate Lawson if (devinfo->CompatibilityId.Count < count) 13581e4925e8SNate Lawson count = devinfo->CompatibilityId.Count; 13591e4925e8SNate Lawson for (i = 0; i < count; i++) { 13601e4925e8SNate Lawson if (strncmp(devinfo->CompatibilityId.Id[i].Value, "PNP", 3) != 0) 13611e4925e8SNate Lawson continue; 13621e4925e8SNate Lawson *pnpid++ = PNP_EISAID(devinfo->CompatibilityId.Id[i].Value); 13631e4925e8SNate Lawson valid++; 1364b2566207STakanori Watanabe } 1365b2566207STakanori Watanabe 13661e4925e8SNate Lawson out: 1367bd189fe7SNate Lawson if (buf.Pointer != NULL) 13681e4925e8SNate Lawson AcpiOsFree(buf.Pointer); 13691e4925e8SNate Lawson return_VALUE (valid); 13701e4925e8SNate Lawson } 1371b2566207STakanori Watanabe 1372ce619b2eSNate Lawson static char * 1373ce619b2eSNate Lawson acpi_device_id_probe(device_t bus, device_t dev, char **ids) 1374ce619b2eSNate Lawson { 1375ce619b2eSNate Lawson ACPI_HANDLE h; 1376ce619b2eSNate Lawson int i; 1377ce619b2eSNate Lawson 1378ce619b2eSNate Lawson h = acpi_get_handle(dev); 1379ce619b2eSNate Lawson if (ids == NULL || h == NULL || acpi_get_type(dev) != ACPI_TYPE_DEVICE) 1380ce619b2eSNate Lawson return (NULL); 1381ce619b2eSNate Lawson 1382ce619b2eSNate Lawson /* Try to match one of the array of IDs with a HID or CID. */ 1383ce619b2eSNate Lawson for (i = 0; ids[i] != NULL; i++) { 1384ce619b2eSNate Lawson if (acpi_MatchHid(h, ids[i])) 1385ce619b2eSNate Lawson return (ids[i]); 1386ce619b2eSNate Lawson } 1387ce619b2eSNate Lawson return (NULL); 1388ce619b2eSNate Lawson } 1389ce619b2eSNate Lawson 1390ce619b2eSNate Lawson static ACPI_STATUS 1391ce619b2eSNate Lawson acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname, 1392ce619b2eSNate Lawson ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret) 1393ce619b2eSNate Lawson { 1394ce619b2eSNate Lawson ACPI_HANDLE h; 1395ce619b2eSNate Lawson 1396df8d2a32SNate Lawson if (dev == NULL) 1397df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1398df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1399ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1400ce619b2eSNate Lawson return (AcpiEvaluateObject(h, pathname, parameters, ret)); 1401ce619b2eSNate Lawson } 1402ce619b2eSNate Lawson 140310ce62b9SNate Lawson static int 140410ce62b9SNate Lawson acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate) 140510ce62b9SNate Lawson { 140610ce62b9SNate Lawson struct acpi_softc *sc; 140710ce62b9SNate Lawson ACPI_HANDLE handle; 140810ce62b9SNate Lawson ACPI_STATUS status; 140910ce62b9SNate Lawson char sxd[8]; 141010ce62b9SNate Lawson int error; 141110ce62b9SNate Lawson 141210ce62b9SNate Lawson sc = device_get_softc(bus); 141310ce62b9SNate Lawson handle = acpi_get_handle(dev); 141410ce62b9SNate Lawson 141510ce62b9SNate Lawson /* 141610ce62b9SNate Lawson * XXX If we find these devices, don't try to power them down. 141710ce62b9SNate Lawson * The serial and IRDA ports on my T23 hang the system when 141810ce62b9SNate Lawson * set to D3 and it appears that such legacy devices may 141910ce62b9SNate Lawson * need special handling in their drivers. 142010ce62b9SNate Lawson */ 142110ce62b9SNate Lawson if (handle == NULL || 142210ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0500") || 142310ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0501") || 142410ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0502") || 142510ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0510") || 142610ce62b9SNate Lawson acpi_MatchHid(handle, "PNP0511")) 142710ce62b9SNate Lawson return (ENXIO); 142810ce62b9SNate Lawson 142910ce62b9SNate Lawson /* 143010ce62b9SNate Lawson * Override next state with the value from _SxD, if present. If no 143110ce62b9SNate Lawson * dstate argument was provided, don't fetch the return value. 143210ce62b9SNate Lawson */ 143310ce62b9SNate Lawson snprintf(sxd, sizeof(sxd), "_S%dD", sc->acpi_sstate); 143410ce62b9SNate Lawson if (dstate) 143510ce62b9SNate Lawson status = acpi_GetInteger(handle, sxd, dstate); 143610ce62b9SNate Lawson else 143710ce62b9SNate Lawson status = AcpiEvaluateObject(handle, sxd, NULL, NULL); 143810ce62b9SNate Lawson 143910ce62b9SNate Lawson switch (status) { 144010ce62b9SNate Lawson case AE_OK: 144110ce62b9SNate Lawson error = 0; 144210ce62b9SNate Lawson break; 144310ce62b9SNate Lawson case AE_NOT_FOUND: 144410ce62b9SNate Lawson error = ESRCH; 144510ce62b9SNate Lawson break; 144610ce62b9SNate Lawson default: 144710ce62b9SNate Lawson error = ENXIO; 144810ce62b9SNate Lawson break; 144910ce62b9SNate Lawson } 145010ce62b9SNate Lawson 145110ce62b9SNate Lawson return (error); 145210ce62b9SNate Lawson } 145310ce62b9SNate Lawson 1454df8d2a32SNate Lawson /* Callback arg for our implementation of walking the namespace. */ 1455df8d2a32SNate Lawson struct acpi_device_scan_ctx { 1456df8d2a32SNate Lawson acpi_scan_cb_t user_fn; 1457df8d2a32SNate Lawson void *arg; 1458df8d2a32SNate Lawson ACPI_HANDLE parent; 1459df8d2a32SNate Lawson }; 1460df8d2a32SNate Lawson 1461ce619b2eSNate Lawson static ACPI_STATUS 1462df8d2a32SNate Lawson acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *arg, void **retval) 1463df8d2a32SNate Lawson { 1464df8d2a32SNate Lawson struct acpi_device_scan_ctx *ctx; 1465df8d2a32SNate Lawson device_t dev, old_dev; 1466df8d2a32SNate Lawson ACPI_STATUS status; 1467df8d2a32SNate Lawson ACPI_OBJECT_TYPE type; 1468df8d2a32SNate Lawson 1469df8d2a32SNate Lawson /* 1470df8d2a32SNate Lawson * Skip this device if we think we'll have trouble with it or it is 1471df8d2a32SNate Lawson * the parent where the scan began. 1472df8d2a32SNate Lawson */ 1473df8d2a32SNate Lawson ctx = (struct acpi_device_scan_ctx *)arg; 1474df8d2a32SNate Lawson if (acpi_avoid(h) || h == ctx->parent) 1475df8d2a32SNate Lawson return (AE_OK); 1476df8d2a32SNate Lawson 1477df8d2a32SNate Lawson /* If this is not a valid device type (e.g., a method), skip it. */ 1478df8d2a32SNate Lawson if (ACPI_FAILURE(AcpiGetType(h, &type))) 1479df8d2a32SNate Lawson return (AE_OK); 1480df8d2a32SNate Lawson if (type != ACPI_TYPE_DEVICE && type != ACPI_TYPE_PROCESSOR && 1481df8d2a32SNate Lawson type != ACPI_TYPE_THERMAL && type != ACPI_TYPE_POWER) 1482df8d2a32SNate Lawson return (AE_OK); 1483df8d2a32SNate Lawson 1484df8d2a32SNate Lawson /* 1485df8d2a32SNate Lawson * Call the user function with the current device. If it is unchanged 1486df8d2a32SNate Lawson * afterwards, return. Otherwise, we update the handle to the new dev. 1487df8d2a32SNate Lawson */ 1488df8d2a32SNate Lawson old_dev = acpi_get_device(h); 1489df8d2a32SNate Lawson dev = old_dev; 1490df8d2a32SNate Lawson status = ctx->user_fn(h, &dev, level, ctx->arg); 1491df8d2a32SNate Lawson if (ACPI_FAILURE(status) || old_dev == dev) 1492df8d2a32SNate Lawson return (status); 1493df8d2a32SNate Lawson 1494df8d2a32SNate Lawson /* Remove the old child and its connection to the handle. */ 1495df8d2a32SNate Lawson if (old_dev != NULL) { 1496df8d2a32SNate Lawson device_delete_child(device_get_parent(old_dev), old_dev); 1497df8d2a32SNate Lawson AcpiDetachData(h, acpi_fake_objhandler); 1498df8d2a32SNate Lawson } 1499df8d2a32SNate Lawson 1500df8d2a32SNate Lawson /* Recreate the handle association if the user created a device. */ 1501df8d2a32SNate Lawson if (dev != NULL) 1502df8d2a32SNate Lawson AcpiAttachData(h, acpi_fake_objhandler, dev); 1503df8d2a32SNate Lawson 1504df8d2a32SNate Lawson return (AE_OK); 1505df8d2a32SNate Lawson } 1506df8d2a32SNate Lawson 1507df8d2a32SNate Lawson static ACPI_STATUS 1508df8d2a32SNate Lawson acpi_device_scan_children(device_t bus, device_t dev, int max_depth, 1509df8d2a32SNate Lawson acpi_scan_cb_t user_fn, void *arg) 1510ce619b2eSNate Lawson { 1511ce619b2eSNate Lawson ACPI_HANDLE h; 1512df8d2a32SNate Lawson struct acpi_device_scan_ctx ctx; 1513ce619b2eSNate Lawson 1514df8d2a32SNate Lawson if (acpi_disabled("children")) 1515df8d2a32SNate Lawson return (AE_OK); 1516df8d2a32SNate Lawson 1517df8d2a32SNate Lawson if (dev == NULL) 1518df8d2a32SNate Lawson h = ACPI_ROOT_OBJECT; 1519df8d2a32SNate Lawson else if ((h = acpi_get_handle(dev)) == NULL) 1520ce619b2eSNate Lawson return (AE_BAD_PARAMETER); 1521df8d2a32SNate Lawson ctx.user_fn = user_fn; 1522df8d2a32SNate Lawson ctx.arg = arg; 1523df8d2a32SNate Lawson ctx.parent = h; 1524df8d2a32SNate Lawson return (AcpiWalkNamespace(ACPI_TYPE_ANY, h, max_depth, 1525df8d2a32SNate Lawson acpi_device_scan_cb, &ctx, NULL)); 1526ce619b2eSNate Lawson } 1527ce619b2eSNate Lawson 152810ce62b9SNate Lawson /* 152910ce62b9SNate Lawson * Even though ACPI devices are not PCI, we use the PCI approach for setting 153010ce62b9SNate Lawson * device power states since it's close enough to ACPI. 153110ce62b9SNate Lawson */ 153210ce62b9SNate Lawson static int 153310ce62b9SNate Lawson acpi_set_powerstate_method(device_t bus, device_t child, int state) 153410ce62b9SNate Lawson { 153510ce62b9SNate Lawson ACPI_HANDLE h; 153610ce62b9SNate Lawson ACPI_STATUS status; 153710ce62b9SNate Lawson int error; 153810ce62b9SNate Lawson 153910ce62b9SNate Lawson error = 0; 154010ce62b9SNate Lawson h = acpi_get_handle(child); 1541a0e73a12SJung-uk Kim if (state < ACPI_STATE_D0 || state > ACPI_D_STATES_MAX) 154210ce62b9SNate Lawson return (EINVAL); 154310ce62b9SNate Lawson if (h == NULL) 154410ce62b9SNate Lawson return (0); 154510ce62b9SNate Lawson 154610ce62b9SNate Lawson /* Ignore errors if the power methods aren't present. */ 154710ce62b9SNate Lawson status = acpi_pwr_switch_consumer(h, state); 154810ce62b9SNate Lawson if (ACPI_FAILURE(status) && status != AE_NOT_FOUND 154910ce62b9SNate Lawson && status != AE_BAD_PARAMETER) 155010ce62b9SNate Lawson device_printf(bus, "failed to set ACPI power state D%d on %s: %s\n", 155110ce62b9SNate Lawson state, acpi_name(h), AcpiFormatException(status)); 155210ce62b9SNate Lawson 155310ce62b9SNate Lawson return (error); 155410ce62b9SNate Lawson } 155510ce62b9SNate Lawson 155632d18aa5SMike Smith static int 155732d18aa5SMike Smith acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids) 155832d18aa5SMike Smith { 15591e4925e8SNate Lawson int result, cid_count, i; 15601e4925e8SNate Lawson uint32_t lid, cids[8]; 1561bc0f2195SMike Smith 1562b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1563bc0f2195SMike Smith 1564bc0f2195SMike Smith /* 1565bc0f2195SMike Smith * ISA-style drivers attached to ACPI may persist and 1566bc0f2195SMike Smith * probe manually if we return ENOENT. We never want 1567bc0f2195SMike Smith * that to happen, so don't ever return it. 1568bc0f2195SMike Smith */ 1569bc0f2195SMike Smith result = ENXIO; 1570bc0f2195SMike Smith 1571be2b1797SNate Lawson /* Scan the supplied IDs for a match */ 1572b2566207STakanori Watanabe lid = acpi_isa_get_logicalid(child); 15731e4925e8SNate Lawson cid_count = acpi_isa_get_compatid(child, cids, 8); 1574bc0f2195SMike Smith while (ids && ids->ip_id) { 15751e4925e8SNate Lawson if (lid == ids->ip_id) { 1576bc0f2195SMike Smith result = 0; 1577bc0f2195SMike Smith goto out; 1578bc0f2195SMike Smith } 15791e4925e8SNate Lawson for (i = 0; i < cid_count; i++) { 15801e4925e8SNate Lawson if (cids[i] == ids->ip_id) { 15811e4925e8SNate Lawson result = 0; 15821e4925e8SNate Lawson goto out; 15831e4925e8SNate Lawson } 15841e4925e8SNate Lawson } 1585bc0f2195SMike Smith ids++; 1586bc0f2195SMike Smith } 1587be2b1797SNate Lawson 1588bc0f2195SMike Smith out: 15899e0dd54fSNate Lawson if (result == 0 && ids->ip_desc) 15909e0dd54fSNate Lawson device_set_desc(child, ids->ip_desc); 15919e0dd54fSNate Lawson 1592bc0f2195SMike Smith return_VALUE (result); 1593bc0f2195SMike Smith } 1594bc0f2195SMike Smith 1595d320e05cSJohn Baldwin #if defined(__i386__) || defined(__amd64__) 1596d320e05cSJohn Baldwin /* 1597d320e05cSJohn Baldwin * Look for a MCFG table. If it is present, use the settings for 1598d320e05cSJohn Baldwin * domain (segment) 0 to setup PCI config space access via the memory 1599d320e05cSJohn Baldwin * map. 1600d320e05cSJohn Baldwin */ 1601d320e05cSJohn Baldwin static void 1602d320e05cSJohn Baldwin acpi_enable_pcie(void) 1603d320e05cSJohn Baldwin { 1604d320e05cSJohn Baldwin ACPI_TABLE_HEADER *hdr; 1605d320e05cSJohn Baldwin ACPI_MCFG_ALLOCATION *alloc, *end; 1606d320e05cSJohn Baldwin ACPI_STATUS status; 1607d320e05cSJohn Baldwin 1608d320e05cSJohn Baldwin status = AcpiGetTable(ACPI_SIG_MCFG, 1, &hdr); 1609d320e05cSJohn Baldwin if (ACPI_FAILURE(status)) 1610d320e05cSJohn Baldwin return; 1611d320e05cSJohn Baldwin 1612d320e05cSJohn Baldwin end = (ACPI_MCFG_ALLOCATION *)((char *)hdr + hdr->Length); 1613d320e05cSJohn Baldwin alloc = (ACPI_MCFG_ALLOCATION *)((ACPI_TABLE_MCFG *)hdr + 1); 1614d320e05cSJohn Baldwin while (alloc < end) { 1615d320e05cSJohn Baldwin if (alloc->PciSegment == 0) { 1616d320e05cSJohn Baldwin pcie_cfgregopen(alloc->Address, alloc->StartBusNumber, 1617d320e05cSJohn Baldwin alloc->EndBusNumber); 1618d320e05cSJohn Baldwin return; 1619d320e05cSJohn Baldwin } 1620d320e05cSJohn Baldwin alloc++; 1621d320e05cSJohn Baldwin } 1622d320e05cSJohn Baldwin } 1623d320e05cSJohn Baldwin #endif 1624d320e05cSJohn Baldwin 1625bc0f2195SMike Smith /* 162633332dc2SNate Lawson * Scan all of the ACPI namespace and attach child devices. 162715e32d5dSMike Smith * 162833332dc2SNate Lawson * We should only expect to find devices in the \_PR, \_TZ, \_SI, and 162933332dc2SNate Lawson * \_SB scopes, and \_PR and \_TZ became obsolete in the ACPI 2.0 spec. 163033332dc2SNate Lawson * However, in violation of the spec, some systems place their PCI link 163133332dc2SNate Lawson * devices in \, so we have to walk the whole namespace. We check the 163233332dc2SNate Lawson * type of namespace nodes, so this should be ok. 163315e32d5dSMike Smith */ 163415e32d5dSMike Smith static void 163515e32d5dSMike Smith acpi_probe_children(device_t bus) 163615e32d5dSMike Smith { 163715e32d5dSMike Smith 1638b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 16390ae55423SMike Smith 164015e32d5dSMike Smith /* 164115e32d5dSMike Smith * Scan the namespace and insert placeholders for all the devices that 1642edc13633SNate Lawson * we find. We also probe/attach any early devices. 164315e32d5dSMike Smith * 164415e32d5dSMike Smith * Note that we use AcpiWalkNamespace rather than AcpiGetDevices because 1645be2b1797SNate Lawson * we want to create nodes for all devices, not just those that are 1646be2b1797SNate Lawson * currently present. (This assumes that we don't want to create/remove 1647be2b1797SNate Lawson * devices as they appear, which might be smarter.) 164815e32d5dSMike Smith */ 16494c1cdee6SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "namespace scan\n")); 165033332dc2SNate Lawson AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 100, acpi_probe_child, 1651be2b1797SNate Lawson bus, NULL); 165215e32d5dSMike Smith 1653adad4744SNate Lawson /* Pre-allocate resources for our rman from any sysresource devices. */ 1654adad4744SNate Lawson acpi_sysres_alloc(bus); 1655adad4744SNate Lawson 1656edc13633SNate Lawson /* Create any static children by calling device identify methods. */ 1657edc13633SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n")); 1658edc13633SNate Lawson bus_generic_probe(bus); 1659edc13633SNate Lawson 1660edc13633SNate Lawson /* Probe/attach all children, created staticly and from the namespace. */ 16614c1cdee6SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "first bus_generic_attach\n")); 166215e32d5dSMike Smith bus_generic_attach(bus); 166315e32d5dSMike Smith 166415e32d5dSMike Smith /* 166515e32d5dSMike Smith * Some of these children may have attached others as part of their attach 166615e32d5dSMike Smith * process (eg. the root PCI bus driver), so rescan. 166715e32d5dSMike Smith */ 16684c1cdee6SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "second bus_generic_attach\n")); 166915e32d5dSMike Smith bus_generic_attach(bus); 16700ae55423SMike Smith 167188a79fc0SNate Lawson /* Attach wake sysctls. */ 16725c9ea25eSNate Lawson acpi_wake_sysctl_walk(bus); 167388a79fc0SNate Lawson 1674bc0f2195SMike Smith ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "done attaching children\n")); 16750ae55423SMike Smith return_VOID; 167615e32d5dSMike Smith } 167715e32d5dSMike Smith 1678b82ca9a9SNate Lawson /* 1679d227204dSJohn Baldwin * Determine the probe order for a given device. 1680b82ca9a9SNate Lawson */ 1681d227204dSJohn Baldwin static void 1682b82ca9a9SNate Lawson acpi_probe_order(ACPI_HANDLE handle, int *order) 168391233413SNate Lawson { 1684463e0f91SJohn Baldwin ACPI_OBJECT_TYPE type; 168591233413SNate Lawson 1686b82ca9a9SNate Lawson /* 1687b82ca9a9SNate Lawson * 1. I/O port and memory system resource holders 1688b82ca9a9SNate Lawson * 2. Embedded controllers (to handle early accesses) 1689b460c6f8SJohn Baldwin * 3. PCI Link Devices 1690b6618687SJohn Baldwin * 100000. CPUs 1691b82ca9a9SNate Lawson */ 1692463e0f91SJohn Baldwin AcpiGetType(handle, &type); 1693da72d149SNate Lawson if (acpi_MatchHid(handle, "PNP0C01") || acpi_MatchHid(handle, "PNP0C02")) 169491233413SNate Lawson *order = 1; 1695da72d149SNate Lawson else if (acpi_MatchHid(handle, "PNP0C09")) 169691233413SNate Lawson *order = 2; 1697da72d149SNate Lawson else if (acpi_MatchHid(handle, "PNP0C0F")) 1698b460c6f8SJohn Baldwin *order = 3; 1699d227204dSJohn Baldwin else if (type == ACPI_TYPE_PROCESSOR) 1700b6618687SJohn Baldwin *order = 100000; 170191233413SNate Lawson } 170291233413SNate Lawson 170315e32d5dSMike Smith /* 170415e32d5dSMike Smith * Evaluate a child device and determine whether we might attach a device to 170515e32d5dSMike Smith * it. 170615e32d5dSMike Smith */ 170715e32d5dSMike Smith static ACPI_STATUS 170815e32d5dSMike Smith acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 170915e32d5dSMike Smith { 171015e32d5dSMike Smith ACPI_OBJECT_TYPE type; 1711858a52f4SMitsuru IWASAKI ACPI_HANDLE h; 171233332dc2SNate Lawson device_t bus, child; 1713da72d149SNate Lawson int order; 171433332dc2SNate Lawson char *handle_str, **search; 171533332dc2SNate Lawson static char *scopes[] = {"\\_PR_", "\\_TZ_", "\\_SI_", "\\_SB_", NULL}; 171615e32d5dSMike Smith 1717b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 17180ae55423SMike Smith 1719be2b1797SNate Lawson /* Skip this device if we think we'll have trouble with it. */ 17200ae55423SMike Smith if (acpi_avoid(handle)) 17210ae55423SMike Smith return_ACPI_STATUS (AE_OK); 17220ae55423SMike Smith 172391233413SNate Lawson bus = (device_t)context; 1724b53f2771SMike Smith if (ACPI_SUCCESS(AcpiGetType(handle, &type))) { 172515e32d5dSMike Smith switch (type) { 172615e32d5dSMike Smith case ACPI_TYPE_DEVICE: 172715e32d5dSMike Smith case ACPI_TYPE_PROCESSOR: 172815e32d5dSMike Smith case ACPI_TYPE_THERMAL: 172915e32d5dSMike Smith case ACPI_TYPE_POWER: 17300ae55423SMike Smith if (acpi_disabled("children")) 17310ae55423SMike Smith break; 1732be2b1797SNate Lawson 173315e32d5dSMike Smith /* 173433332dc2SNate Lawson * Since we scan from \, be sure to skip system scope objects. 173533332dc2SNate Lawson * At least \_SB and \_TZ are detected as devices (ACPI-CA bug?) 173633332dc2SNate Lawson */ 173733332dc2SNate Lawson handle_str = acpi_name(handle); 173833332dc2SNate Lawson for (search = scopes; *search != NULL; search++) { 173933332dc2SNate Lawson if (strcmp(handle_str, *search) == 0) 174033332dc2SNate Lawson break; 174133332dc2SNate Lawson } 174233332dc2SNate Lawson if (*search != NULL) 174333332dc2SNate Lawson break; 174433332dc2SNate Lawson 174533332dc2SNate Lawson /* 1746463e0f91SJohn Baldwin * Create a placeholder device for this node. Sort the 1747463e0f91SJohn Baldwin * placeholder so that the probe/attach passes will run 1748463e0f91SJohn Baldwin * breadth-first. Orders less than ACPI_DEV_BASE_ORDER 1749463e0f91SJohn Baldwin * are reserved for special objects (i.e., system 1750b6618687SJohn Baldwin * resources). CPU devices have a very high order to 1751b6618687SJohn Baldwin * ensure they are probed after other devices. 175215e32d5dSMike Smith */ 175333332dc2SNate Lawson ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "scanning '%s'\n", handle_str)); 1754d227204dSJohn Baldwin order = level * 10 + 100; 1755da72d149SNate Lawson acpi_probe_order(handle, &order); 175691233413SNate Lawson child = BUS_ADD_CHILD(bus, order, NULL, -1); 1757bc0f2195SMike Smith if (child == NULL) 1758bc0f2195SMike Smith break; 175959a890e6SNate Lawson 176059a890e6SNate Lawson /* Associate the handle with the device_t and vice versa. */ 176115e32d5dSMike Smith acpi_set_handle(child, handle); 176259a890e6SNate Lawson AcpiAttachData(handle, acpi_fake_objhandler, child); 1763bc0f2195SMike Smith 1764bc0f2195SMike Smith /* 1765b519f9d6SMike Smith * Check that the device is present. If it's not present, 1766b519f9d6SMike Smith * leave it disabled (so that we have a device_t attached to 1767b519f9d6SMike Smith * the handle, but we don't probe it). 1768893f750aSNate Lawson * 1769893f750aSNate Lawson * XXX PCI link devices sometimes report "present" but not 1770893f750aSNate Lawson * "functional" (i.e. if disabled). Go ahead and probe them 1771893f750aSNate Lawson * anyway since we may enable them later. 1772b519f9d6SMike Smith */ 1773858a52f4SMitsuru IWASAKI if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) { 1774858a52f4SMitsuru IWASAKI /* Never disable PCI link devices. */ 1775858a52f4SMitsuru IWASAKI if (acpi_MatchHid(handle, "PNP0C0F")) 1776858a52f4SMitsuru IWASAKI break; 1777858a52f4SMitsuru IWASAKI /* 1778858a52f4SMitsuru IWASAKI * Docking stations should remain enabled since the system 1779858a52f4SMitsuru IWASAKI * may be undocked at boot. 1780858a52f4SMitsuru IWASAKI */ 1781858a52f4SMitsuru IWASAKI if (ACPI_SUCCESS(AcpiGetHandle(handle, "_DCK", &h))) 1782858a52f4SMitsuru IWASAKI break; 1783858a52f4SMitsuru IWASAKI 1784b519f9d6SMike Smith device_disable(child); 1785b519f9d6SMike Smith break; 1786b519f9d6SMike Smith } 1787b519f9d6SMike Smith 1788b519f9d6SMike Smith /* 1789bc0f2195SMike Smith * Get the device's resource settings and attach them. 1790bc0f2195SMike Smith * Note that if the device has _PRS but no _CRS, we need 1791bc0f2195SMike Smith * to decide when it's appropriate to try to configure the 1792bc0f2195SMike Smith * device. Ignore the return value here; it's OK for the 1793bc0f2195SMike Smith * device not to have any resources. 1794bc0f2195SMike Smith */ 179572ad60adSNate Lawson acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL); 17960ae55423SMike Smith break; 179715e32d5dSMike Smith } 179815e32d5dSMike Smith } 1799be2b1797SNate Lawson 18000ae55423SMike Smith return_ACPI_STATUS (AE_OK); 180115e32d5dSMike Smith } 180215e32d5dSMike Smith 180359a890e6SNate Lawson /* 180459a890e6SNate Lawson * AcpiAttachData() requires an object handler but never uses it. This is a 180559a890e6SNate Lawson * placeholder object handler so we can store a device_t in an ACPI_HANDLE. 180659a890e6SNate Lawson */ 180759a890e6SNate Lawson void 180859a890e6SNate Lawson acpi_fake_objhandler(ACPI_HANDLE h, UINT32 fn, void *data) 180959a890e6SNate Lawson { 181059a890e6SNate Lawson } 181159a890e6SNate Lawson 181215e32d5dSMike Smith static void 181315e32d5dSMike Smith acpi_shutdown_final(void *arg, int howto) 181415e32d5dSMike Smith { 18152d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 1816d33f4987STakanori Watanabe ACPI_STATUS status; 1817eeb3a05fSNate Lawson 1818eeb3a05fSNate Lawson /* 181980f0e4c2SNate Lawson * XXX Shutdown code should only run on the BSP (cpuid 0). 182080f0e4c2SNate Lawson * Some chipsets do not power off the system correctly if called from 182180f0e4c2SNate Lawson * an AP. 1822eeb3a05fSNate Lawson */ 1823eeb3a05fSNate Lawson if ((howto & RB_POWEROFF) != 0) { 1824904bf0c2SNate Lawson status = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1825904bf0c2SNate Lawson if (ACPI_FAILURE(status)) { 18262d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 1827904bf0c2SNate Lawson AcpiFormatException(status)); 1828904bf0c2SNate Lawson return; 1829904bf0c2SNate Lawson } 18302d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Powering system off\n"); 183155398047SNate Lawson ACPI_DISABLE_IRQS(); 1832865b8d0bSNate Lawson status = AcpiEnterSleepState(ACPI_STATE_S5); 18332d0c82e8SJung-uk Kim if (ACPI_FAILURE(status)) 18342d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - %s\n", 18352d0c82e8SJung-uk Kim AcpiFormatException(status)); 18362d0c82e8SJung-uk Kim else { 183715e32d5dSMike Smith DELAY(1000000); 18382d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "power-off failed - timeout\n"); 183915e32d5dSMike Smith } 18402be4e471SJung-uk Kim } else if ((howto & RB_HALT) == 0 && 18412be4e471SJung-uk Kim (AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) && 1842d1b16e18SNate Lawson sc->acpi_handle_reboot) { 1843d85e6785SNate Lawson /* Reboot using the reset register. */ 1844129d3046SJung-uk Kim status = AcpiWrite( 18452be4e471SJung-uk Kim AcpiGbl_FADT.ResetValue, &AcpiGbl_FADT.ResetRegister); 18462d0c82e8SJung-uk Kim if (ACPI_FAILURE(status)) 18472d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - %s\n", 18482d0c82e8SJung-uk Kim AcpiFormatException(status)); 18492d0c82e8SJung-uk Kim else { 185087a500cdSNate Lawson DELAY(1000000); 18512d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "reset failed - timeout\n"); 185287a500cdSNate Lawson } 1853d85e6785SNate Lawson } else if (sc->acpi_do_disable && panicstr == NULL) { 1854d85e6785SNate Lawson /* 1855d85e6785SNate Lawson * Only disable ACPI if the user requested. On some systems, writing 1856d85e6785SNate Lawson * the disable value to SMI_CMD hangs the system. 1857d85e6785SNate Lawson */ 18582d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "Shutting down\n"); 185980f0e4c2SNate Lawson AcpiTerminate(); 186080f0e4c2SNate Lawson } 186115e32d5dSMike Smith } 186215e32d5dSMike Smith 186313d4f7baSMitsuru IWASAKI static void 186413d4f7baSMitsuru IWASAKI acpi_enable_fixed_events(struct acpi_softc *sc) 186513d4f7baSMitsuru IWASAKI { 186613d4f7baSMitsuru IWASAKI static int first_time = 1; 186713d4f7baSMitsuru IWASAKI 186813d4f7baSMitsuru IWASAKI /* Enable and clear fixed events and install handlers. */ 18692be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 187059ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 187113d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON, 187233febf93SNate Lawson acpi_event_power_button_sleep, sc); 1873be2b1797SNate Lawson if (first_time) 18746c0e8467SNate Lawson device_printf(sc->acpi_dev, "Power Button (fixed)\n"); 187513d4f7baSMitsuru IWASAKI } 18762be4e471SJung-uk Kim if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 187759ddeb18SNate Lawson AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 187813d4f7baSMitsuru IWASAKI AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON, 187933febf93SNate Lawson acpi_event_sleep_button_sleep, sc); 1880be2b1797SNate Lawson if (first_time) 18816c0e8467SNate Lawson device_printf(sc->acpi_dev, "Sleep Button (fixed)\n"); 188213d4f7baSMitsuru IWASAKI } 188313d4f7baSMitsuru IWASAKI 188413d4f7baSMitsuru IWASAKI first_time = 0; 188513d4f7baSMitsuru IWASAKI } 188613d4f7baSMitsuru IWASAKI 188715e32d5dSMike Smith /* 1888c5ba0be4SMike Smith * Returns true if the device is actually present and should 1889c5ba0be4SMike Smith * be attached to. This requires the present, enabled, UI-visible 1890c5ba0be4SMike Smith * and diagnostics-passed bits to be set. 1891c5ba0be4SMike Smith */ 1892c5ba0be4SMike Smith BOOLEAN 1893c5ba0be4SMike Smith acpi_DeviceIsPresent(device_t dev) 1894c5ba0be4SMike Smith { 18951e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 1896c5ba0be4SMike Smith ACPI_HANDLE h; 18971e4925e8SNate Lawson ACPI_BUFFER buf; 1898c5ba0be4SMike Smith ACPI_STATUS error; 18991e4925e8SNate Lawson int ret; 1900c5ba0be4SMike Smith 19011e4925e8SNate Lawson ret = FALSE; 1902c5ba0be4SMike Smith if ((h = acpi_get_handle(dev)) == NULL) 1903c5ba0be4SMike Smith return (FALSE); 19041e4925e8SNate Lawson buf.Pointer = NULL; 19051e4925e8SNate Lawson buf.Length = ACPI_ALLOCATE_BUFFER; 19066fca9360SNate Lawson error = AcpiGetObjectInfo(h, &buf); 19076fca9360SNate Lawson if (ACPI_FAILURE(error)) 1908c5ba0be4SMike Smith return (FALSE); 19091e4925e8SNate Lawson devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; 1910be2b1797SNate Lawson 1911be2b1797SNate Lawson /* If no _STA method, must be present */ 19121e4925e8SNate Lawson if ((devinfo->Valid & ACPI_VALID_STA) == 0) 19131e4925e8SNate Lawson ret = TRUE; 1914be2b1797SNate Lawson 1915be2b1797SNate Lawson /* Return true for 'present' and 'functioning' */ 191617dbe0f7SNate Lawson if (ACPI_DEVICE_PRESENT(devinfo->CurrentStatus)) 19171e4925e8SNate Lawson ret = TRUE; 1918be2b1797SNate Lawson 19191e4925e8SNate Lawson AcpiOsFree(buf.Pointer); 19201e4925e8SNate Lawson return (ret); 1921c5ba0be4SMike Smith } 1922c5ba0be4SMike Smith 1923c5ba0be4SMike Smith /* 1924b53f2771SMike Smith * Returns true if the battery is actually present and inserted. 1925b53f2771SMike Smith */ 1926b53f2771SMike Smith BOOLEAN 1927b53f2771SMike Smith acpi_BatteryIsPresent(device_t dev) 1928b53f2771SMike Smith { 19291e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 1930b53f2771SMike Smith ACPI_HANDLE h; 19311e4925e8SNate Lawson ACPI_BUFFER buf; 1932b53f2771SMike Smith ACPI_STATUS error; 19331e4925e8SNate Lawson int ret; 1934b53f2771SMike Smith 19351e4925e8SNate Lawson ret = FALSE; 1936b53f2771SMike Smith if ((h = acpi_get_handle(dev)) == NULL) 1937b53f2771SMike Smith return (FALSE); 19381e4925e8SNate Lawson buf.Pointer = NULL; 19391e4925e8SNate Lawson buf.Length = ACPI_ALLOCATE_BUFFER; 19406fca9360SNate Lawson error = AcpiGetObjectInfo(h, &buf); 19416fca9360SNate Lawson if (ACPI_FAILURE(error)) 1942b53f2771SMike Smith return (FALSE); 19431e4925e8SNate Lawson devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; 1944be2b1797SNate Lawson 1945be2b1797SNate Lawson /* If no _STA method, must be present */ 19461e4925e8SNate Lawson if ((devinfo->Valid & ACPI_VALID_STA) == 0) 19471e4925e8SNate Lawson ret = TRUE; 1948be2b1797SNate Lawson 194917dbe0f7SNate Lawson /* Return true for 'present', 'battery present', and 'functioning' */ 195017dbe0f7SNate Lawson if (ACPI_BATTERY_PRESENT(devinfo->CurrentStatus)) 19511e4925e8SNate Lawson ret = TRUE; 1952be2b1797SNate Lawson 19531e4925e8SNate Lawson AcpiOsFree(buf.Pointer); 19541e4925e8SNate Lawson return (ret); 1955b53f2771SMike Smith } 1956b53f2771SMike Smith 1957b53f2771SMike Smith /* 195891233413SNate Lawson * Match a HID string against a handle 195915e32d5dSMike Smith */ 1960ce619b2eSNate Lawson static BOOLEAN 1961ce619b2eSNate Lawson acpi_MatchHid(ACPI_HANDLE h, const char *hid) 196215e32d5dSMike Smith { 19631e4925e8SNate Lawson ACPI_DEVICE_INFO *devinfo; 19641e4925e8SNate Lawson ACPI_BUFFER buf; 196515e32d5dSMike Smith ACPI_STATUS error; 19661e4925e8SNate Lawson int ret, i; 196715e32d5dSMike Smith 19681e4925e8SNate Lawson ret = FALSE; 196991233413SNate Lawson if (hid == NULL || h == NULL) 197091233413SNate Lawson return (ret); 19711e4925e8SNate Lawson buf.Pointer = NULL; 19721e4925e8SNate Lawson buf.Length = ACPI_ALLOCATE_BUFFER; 19736fca9360SNate Lawson error = AcpiGetObjectInfo(h, &buf); 19746fca9360SNate Lawson if (ACPI_FAILURE(error)) 197591233413SNate Lawson return (ret); 19761e4925e8SNate Lawson devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; 1977be2b1797SNate Lawson 1978c59c9a8eSJohn Baldwin if ((devinfo->Valid & ACPI_VALID_HID) != 0 && 1979c59c9a8eSJohn Baldwin strcmp(hid, devinfo->HardwareId.Value) == 0) 19801e4925e8SNate Lawson ret = TRUE; 1981c59c9a8eSJohn Baldwin else if ((devinfo->Valid & ACPI_VALID_CID) != 0) { 19821e4925e8SNate Lawson for (i = 0; i < devinfo->CompatibilityId.Count; i++) { 19831e4925e8SNate Lawson if (strcmp(hid, devinfo->CompatibilityId.Id[i].Value) == 0) { 19841e4925e8SNate Lawson ret = TRUE; 19851e4925e8SNate Lawson break; 19861e4925e8SNate Lawson } 19871e4925e8SNate Lawson } 19881e4925e8SNate Lawson } 1989be2b1797SNate Lawson 19901e4925e8SNate Lawson AcpiOsFree(buf.Pointer); 19911e4925e8SNate Lawson return (ret); 199215e32d5dSMike Smith } 199315e32d5dSMike Smith 199415e32d5dSMike Smith /* 1995c5ba0be4SMike Smith * Return the handle of a named object within our scope, ie. that of (parent) 1996c5ba0be4SMike Smith * or one if its parents. 1997c5ba0be4SMike Smith */ 1998c5ba0be4SMike Smith ACPI_STATUS 1999c5ba0be4SMike Smith acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result) 2000c5ba0be4SMike Smith { 2001c5ba0be4SMike Smith ACPI_HANDLE r; 2002c5ba0be4SMike Smith ACPI_STATUS status; 2003c5ba0be4SMike Smith 2004be2b1797SNate Lawson /* Walk back up the tree to the root */ 2005c5ba0be4SMike Smith for (;;) { 2006be2b1797SNate Lawson status = AcpiGetHandle(parent, path, &r); 2007be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2008c5ba0be4SMike Smith *result = r; 2009c5ba0be4SMike Smith return (AE_OK); 2010c5ba0be4SMike Smith } 2011bee4aa4aSNate Lawson /* XXX Return error here? */ 2012c5ba0be4SMike Smith if (status != AE_NOT_FOUND) 2013c5ba0be4SMike Smith return (AE_OK); 2014b53f2771SMike Smith if (ACPI_FAILURE(AcpiGetParent(parent, &r))) 2015c5ba0be4SMike Smith return (AE_NOT_FOUND); 2016c5ba0be4SMike Smith parent = r; 2017c5ba0be4SMike Smith } 2018c5ba0be4SMike Smith } 2019c5ba0be4SMike Smith 2020eea17c34SNate Lawson /* Find the difference between two PM tick counts. */ 2021eea17c34SNate Lawson uint32_t 2022eea17c34SNate Lawson acpi_TimerDelta(uint32_t end, uint32_t start) 2023eea17c34SNate Lawson { 2024eea17c34SNate Lawson uint32_t delta; 2025eea17c34SNate Lawson 2026eea17c34SNate Lawson if (end >= start) 2027eea17c34SNate Lawson delta = end - start; 20282be4e471SJung-uk Kim else if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) 2029eea17c34SNate Lawson delta = ((0xFFFFFFFF - start) + end + 1); 20302be4e471SJung-uk Kim else 20312be4e471SJung-uk Kim delta = ((0x00FFFFFF - start) + end + 1) & 0x00FFFFFF; 2032eea17c34SNate Lawson return (delta); 2033eea17c34SNate Lawson } 2034eea17c34SNate Lawson 2035c5ba0be4SMike Smith /* 2036c5ba0be4SMike Smith * Allocate a buffer with a preset data size. 2037c5ba0be4SMike Smith */ 2038c5ba0be4SMike Smith ACPI_BUFFER * 2039c5ba0be4SMike Smith acpi_AllocBuffer(int size) 2040c5ba0be4SMike Smith { 2041c5ba0be4SMike Smith ACPI_BUFFER *buf; 2042c5ba0be4SMike Smith 2043c5ba0be4SMike Smith if ((buf = malloc(size + sizeof(*buf), M_ACPIDEV, M_NOWAIT)) == NULL) 2044c5ba0be4SMike Smith return (NULL); 2045c5ba0be4SMike Smith buf->Length = size; 2046c5ba0be4SMike Smith buf->Pointer = (void *)(buf + 1); 2047c5ba0be4SMike Smith return (buf); 2048c5ba0be4SMike Smith } 2049c5ba0be4SMike Smith 2050c310653eSNate Lawson ACPI_STATUS 2051cc58e4eeSNate Lawson acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number) 2052c310653eSNate Lawson { 2053c310653eSNate Lawson ACPI_OBJECT arg1; 2054c310653eSNate Lawson ACPI_OBJECT_LIST args; 2055c310653eSNate Lawson 2056c310653eSNate Lawson arg1.Type = ACPI_TYPE_INTEGER; 2057c310653eSNate Lawson arg1.Integer.Value = number; 2058c310653eSNate Lawson args.Count = 1; 2059c310653eSNate Lawson args.Pointer = &arg1; 2060c310653eSNate Lawson 2061c310653eSNate Lawson return (AcpiEvaluateObject(handle, path, &args, NULL)); 2062c310653eSNate Lawson } 2063c310653eSNate Lawson 2064c5ba0be4SMike Smith /* 2065c5ba0be4SMike Smith * Evaluate a path that should return an integer. 2066c5ba0be4SMike Smith */ 2067c5ba0be4SMike Smith ACPI_STATUS 2068cc58e4eeSNate Lawson acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number) 2069c5ba0be4SMike Smith { 2070be2b1797SNate Lawson ACPI_STATUS status; 2071c5ba0be4SMike Smith ACPI_BUFFER buf; 2072c573e654SMitsuru IWASAKI ACPI_OBJECT param; 2073c5ba0be4SMike Smith 2074c5ba0be4SMike Smith if (handle == NULL) 2075c5ba0be4SMike Smith handle = ACPI_ROOT_OBJECT; 20760c7da7acSJohn Baldwin 20770c7da7acSJohn Baldwin /* 20780c7da7acSJohn Baldwin * Assume that what we've been pointed at is an Integer object, or 20790c7da7acSJohn Baldwin * a method that will return an Integer. 20800c7da7acSJohn Baldwin */ 2081c5ba0be4SMike Smith buf.Pointer = ¶m; 2082c5ba0be4SMike Smith buf.Length = sizeof(param); 2083be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2084be2b1797SNate Lawson if (ACPI_SUCCESS(status)) { 2085be2b1797SNate Lawson if (param.Type == ACPI_TYPE_INTEGER) 2086c5ba0be4SMike Smith *number = param.Integer.Value; 2087be2b1797SNate Lawson else 2088be2b1797SNate Lawson status = AE_TYPE; 2089c5ba0be4SMike Smith } 20900c7da7acSJohn Baldwin 20910c7da7acSJohn Baldwin /* 20920c7da7acSJohn Baldwin * In some applications, a method that's expected to return an Integer 20930c7da7acSJohn Baldwin * may instead return a Buffer (probably to simplify some internal 20940c7da7acSJohn Baldwin * arithmetic). We'll try to fetch whatever it is, and if it's a Buffer, 20950c7da7acSJohn Baldwin * convert it into an Integer as best we can. 20960c7da7acSJohn Baldwin * 20970c7da7acSJohn Baldwin * This is a hack. 20980c7da7acSJohn Baldwin */ 2099be2b1797SNate Lawson if (status == AE_BUFFER_OVERFLOW) { 2100b53f2771SMike Smith if ((buf.Pointer = AcpiOsAllocate(buf.Length)) == NULL) { 2101be2b1797SNate Lawson status = AE_NO_MEMORY; 21020c7da7acSJohn Baldwin } else { 2103be2b1797SNate Lawson status = AcpiEvaluateObject(handle, path, NULL, &buf); 2104be2b1797SNate Lawson if (ACPI_SUCCESS(status)) 2105be2b1797SNate Lawson status = acpi_ConvertBufferToInteger(&buf, number); 21060c7da7acSJohn Baldwin AcpiOsFree(buf.Pointer); 21070c7da7acSJohn Baldwin } 2108f97739daSNate Lawson } 2109be2b1797SNate Lawson return (status); 2110c5ba0be4SMike Smith } 2111c5ba0be4SMike Smith 2112c573e654SMitsuru IWASAKI ACPI_STATUS 2113cc58e4eeSNate Lawson acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number) 2114c573e654SMitsuru IWASAKI { 2115c573e654SMitsuru IWASAKI ACPI_OBJECT *p; 2116dba55fa2SNate Lawson UINT8 *val; 2117c573e654SMitsuru IWASAKI int i; 2118c573e654SMitsuru IWASAKI 2119c573e654SMitsuru IWASAKI p = (ACPI_OBJECT *)bufp->Pointer; 2120c573e654SMitsuru IWASAKI if (p->Type == ACPI_TYPE_INTEGER) { 2121c573e654SMitsuru IWASAKI *number = p->Integer.Value; 2122c573e654SMitsuru IWASAKI return (AE_OK); 2123c573e654SMitsuru IWASAKI } 2124c573e654SMitsuru IWASAKI if (p->Type != ACPI_TYPE_BUFFER) 2125c573e654SMitsuru IWASAKI return (AE_TYPE); 2126c573e654SMitsuru IWASAKI if (p->Buffer.Length > sizeof(int)) 2127c573e654SMitsuru IWASAKI return (AE_BAD_DATA); 2128be2b1797SNate Lawson 2129c573e654SMitsuru IWASAKI *number = 0; 2130dba55fa2SNate Lawson val = p->Buffer.Pointer; 2131c573e654SMitsuru IWASAKI for (i = 0; i < p->Buffer.Length; i++) 2132dba55fa2SNate Lawson *number += val[i] << (i * 8); 2133c573e654SMitsuru IWASAKI return (AE_OK); 2134c573e654SMitsuru IWASAKI } 2135c573e654SMitsuru IWASAKI 2136c5ba0be4SMike Smith /* 2137c5ba0be4SMike Smith * Iterate over the elements of an a package object, calling the supplied 2138c5ba0be4SMike Smith * function for each element. 2139c5ba0be4SMike Smith * 2140c5ba0be4SMike Smith * XXX possible enhancement might be to abort traversal on error. 2141c5ba0be4SMike Smith */ 2142c5ba0be4SMike Smith ACPI_STATUS 2143be2b1797SNate Lawson acpi_ForeachPackageObject(ACPI_OBJECT *pkg, 2144be2b1797SNate Lawson void (*func)(ACPI_OBJECT *comp, void *arg), void *arg) 2145c5ba0be4SMike Smith { 2146c5ba0be4SMike Smith ACPI_OBJECT *comp; 2147c5ba0be4SMike Smith int i; 2148c5ba0be4SMike Smith 2149be2b1797SNate Lawson if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 2150c5ba0be4SMike Smith return (AE_BAD_PARAMETER); 2151c5ba0be4SMike Smith 2152be2b1797SNate Lawson /* Iterate over components */ 2153be2b1797SNate Lawson i = 0; 2154be2b1797SNate Lawson comp = pkg->Package.Elements; 2155be2b1797SNate Lawson for (; i < pkg->Package.Count; i++, comp++) 2156c5ba0be4SMike Smith func(comp, arg); 2157c5ba0be4SMike Smith 2158c5ba0be4SMike Smith return (AE_OK); 2159c5ba0be4SMike Smith } 2160c5ba0be4SMike Smith 21616f69255bSMike Smith /* 21626f69255bSMike Smith * Find the (index)th resource object in a set. 21636f69255bSMike Smith */ 21646f69255bSMike Smith ACPI_STATUS 21656d63101aSMike Smith acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp) 21666f69255bSMike Smith { 21676d63101aSMike Smith ACPI_RESOURCE *rp; 21686f69255bSMike Smith int i; 21696f69255bSMike Smith 21706d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 21716f69255bSMike Smith i = index; 21726d63101aSMike Smith while (i-- > 0) { 2173be2b1797SNate Lawson /* Range check */ 21746d63101aSMike Smith if (rp > (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 21756f69255bSMike Smith return (AE_BAD_PARAMETER); 2176be2b1797SNate Lawson 2177be2b1797SNate Lawson /* Check for terminator */ 2178e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 21796d63101aSMike Smith return (AE_NOT_FOUND); 2180abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 21816f69255bSMike Smith } 21826f69255bSMike Smith if (resp != NULL) 21836d63101aSMike Smith *resp = rp; 2184be2b1797SNate Lawson 21856d63101aSMike Smith return (AE_OK); 21866d63101aSMike Smith } 21876d63101aSMike Smith 21886d63101aSMike Smith /* 21896d63101aSMike Smith * Append an ACPI_RESOURCE to an ACPI_BUFFER. 21906d63101aSMike Smith * 21916d63101aSMike Smith * Given a pointer to an ACPI_RESOURCE structure, expand the ACPI_BUFFER 21926d63101aSMike Smith * provided to contain it. If the ACPI_BUFFER is empty, allocate a sensible 21936d63101aSMike Smith * backing block. If the ACPI_RESOURCE is NULL, return an empty set of 21946d63101aSMike Smith * resources. 21956d63101aSMike Smith */ 21966d63101aSMike Smith #define ACPI_INITIAL_RESOURCE_BUFFER_SIZE 512 21976d63101aSMike Smith 21986d63101aSMike Smith ACPI_STATUS 21996d63101aSMike Smith acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res) 22006d63101aSMike Smith { 22016d63101aSMike Smith ACPI_RESOURCE *rp; 22026d63101aSMike Smith void *newp; 22036d63101aSMike Smith 2204be2b1797SNate Lawson /* Initialise the buffer if necessary. */ 22056d63101aSMike Smith if (buf->Pointer == NULL) { 22066d63101aSMike Smith buf->Length = ACPI_INITIAL_RESOURCE_BUFFER_SIZE; 22076d63101aSMike Smith if ((buf->Pointer = AcpiOsAllocate(buf->Length)) == NULL) 22086d63101aSMike Smith return (AE_NO_MEMORY); 22096d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 2210e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 22116d63101aSMike Smith rp->Length = 0; 22126d63101aSMike Smith } 22136d63101aSMike Smith if (res == NULL) 22146d63101aSMike Smith return (AE_OK); 22156d63101aSMike Smith 22166d63101aSMike Smith /* 22176d63101aSMike Smith * Scan the current buffer looking for the terminator. 22186d63101aSMike Smith * This will either find the terminator or hit the end 22196d63101aSMike Smith * of the buffer and return an error. 22206d63101aSMike Smith */ 22216d63101aSMike Smith rp = (ACPI_RESOURCE *)buf->Pointer; 22226d63101aSMike Smith for (;;) { 2223be2b1797SNate Lawson /* Range check, don't go outside the buffer */ 22246d63101aSMike Smith if (rp >= (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) 22256d63101aSMike Smith return (AE_BAD_PARAMETER); 2226e8d472a7SJung-uk Kim if (rp->Type == ACPI_RESOURCE_TYPE_END_TAG || rp->Length == 0) 22276d63101aSMike Smith break; 2228abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 22296d63101aSMike Smith } 22306d63101aSMike Smith 22316d63101aSMike Smith /* 22326d63101aSMike Smith * Check the size of the buffer and expand if required. 22336d63101aSMike Smith * 22346d63101aSMike Smith * Required size is: 22356d63101aSMike Smith * size of existing resources before terminator + 22366d63101aSMike Smith * size of new resource and header + 22376d63101aSMike Smith * size of terminator. 22386d63101aSMike Smith * 22396d63101aSMike Smith * Note that this loop should really only run once, unless 22406d63101aSMike Smith * for some reason we are stuffing a *really* huge resource. 22416d63101aSMike Smith */ 22426d63101aSMike Smith while ((((u_int8_t *)rp - (u_int8_t *)buf->Pointer) + 2243e8d472a7SJung-uk Kim res->Length + ACPI_RS_SIZE_NO_DATA + 2244e8d472a7SJung-uk Kim ACPI_RS_SIZE_MIN) >= buf->Length) { 22456d63101aSMike Smith if ((newp = AcpiOsAllocate(buf->Length * 2)) == NULL) 22466d63101aSMike Smith return (AE_NO_MEMORY); 22476d63101aSMike Smith bcopy(buf->Pointer, newp, buf->Length); 2248a692219dSMike Smith rp = (ACPI_RESOURCE *)((u_int8_t *)newp + 2249a692219dSMike Smith ((u_int8_t *)rp - (u_int8_t *)buf->Pointer)); 22506d63101aSMike Smith AcpiOsFree(buf->Pointer); 22516d63101aSMike Smith buf->Pointer = newp; 22526d63101aSMike Smith buf->Length += buf->Length; 22536d63101aSMike Smith } 22546d63101aSMike Smith 2255be2b1797SNate Lawson /* Insert the new resource. */ 2256e8d472a7SJung-uk Kim bcopy(res, rp, res->Length + ACPI_RS_SIZE_NO_DATA); 22576d63101aSMike Smith 2258be2b1797SNate Lawson /* And add the terminator. */ 2259abcbc5bcSNate Lawson rp = ACPI_NEXT_RESOURCE(rp); 2260e8d472a7SJung-uk Kim rp->Type = ACPI_RESOURCE_TYPE_END_TAG; 22616d63101aSMike Smith rp->Length = 0; 22626d63101aSMike Smith 22636f69255bSMike Smith return (AE_OK); 22646f69255bSMike Smith } 2265c5ba0be4SMike Smith 2266da14ac9fSJohn Baldwin /* 2267da14ac9fSJohn Baldwin * Set interrupt model. 2268da14ac9fSJohn Baldwin */ 2269da14ac9fSJohn Baldwin ACPI_STATUS 2270da14ac9fSJohn Baldwin acpi_SetIntrModel(int model) 2271da14ac9fSJohn Baldwin { 2272da14ac9fSJohn Baldwin 2273c310653eSNate Lawson return (acpi_SetInteger(ACPI_ROOT_OBJECT, "_PIC", model)); 2274da14ac9fSJohn Baldwin } 2275da14ac9fSJohn Baldwin 227600a30448SNate Lawson /* 227700a30448SNate Lawson * DEPRECATED. This interface has serious deficiencies and will be 227800a30448SNate Lawson * removed. 227900a30448SNate Lawson * 228000a30448SNate Lawson * Immediately enter the sleep state. In the old model, acpiconf(8) ran 228100a30448SNate Lawson * rc.suspend and rc.resume so we don't have to notify devd(8) to do this. 228200a30448SNate Lawson */ 228300a30448SNate Lawson ACPI_STATUS 228400a30448SNate Lawson acpi_SetSleepState(struct acpi_softc *sc, int state) 228500a30448SNate Lawson { 228600a30448SNate Lawson static int once; 228700a30448SNate Lawson 228800a30448SNate Lawson if (!once) { 22892d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 229000a30448SNate Lawson "warning: acpi_SetSleepState() deprecated, need to update your software\n"); 229100a30448SNate Lawson once = 1; 229200a30448SNate Lawson } 229300a30448SNate Lawson return (acpi_EnterSleepState(sc, state)); 229400a30448SNate Lawson } 229500a30448SNate Lawson 2296c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 229700a30448SNate Lawson static void 229800a30448SNate Lawson acpi_sleep_force(void *arg) 229900a30448SNate Lawson { 23002d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 230100a30448SNate Lawson 23022d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 23032d0c82e8SJung-uk Kim "suspend request timed out, forcing sleep now\n"); 230400a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 23052d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, "force sleep state S%d failed\n", 23062d0c82e8SJung-uk Kim sc->acpi_next_sstate); 230700a30448SNate Lawson } 2308c66d2b38SJung-uk Kim #endif 230900a30448SNate Lawson 231000a30448SNate Lawson /* 231100a30448SNate Lawson * Request that the system enter the given suspend state. All /dev/apm 231200a30448SNate Lawson * devices and devd(8) will be notified. Userland then has a chance to 231300a30448SNate Lawson * save state and acknowledge the request. The system sleeps once all 231400a30448SNate Lawson * acks are in. 231500a30448SNate Lawson */ 231600a30448SNate Lawson int 231700a30448SNate Lawson acpi_ReqSleepState(struct acpi_softc *sc, int state) 231800a30448SNate Lawson { 2319c66d2b38SJung-uk Kim #if defined(__i386__) 232000a30448SNate Lawson struct apm_clone_data *clone; 2321c66d2b38SJung-uk Kim #endif 232200a30448SNate Lawson 2323a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 232400a30448SNate Lawson return (EINVAL); 2325a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 2326a0e73a12SJung-uk Kim return (EOPNOTSUPP); 232700a30448SNate Lawson 232800a30448SNate Lawson /* S5 (soft-off) should be entered directly with no waiting. */ 232900a30448SNate Lawson if (state == ACPI_STATE_S5) { 233000a30448SNate Lawson if (ACPI_SUCCESS(acpi_EnterSleepState(sc, state))) 233100a30448SNate Lawson return (0); 233200a30448SNate Lawson else 233300a30448SNate Lawson return (ENXIO); 233400a30448SNate Lawson } 233500a30448SNate Lawson 2336c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 233700a30448SNate Lawson /* If a suspend request is already in progress, just return. */ 233800a30448SNate Lawson ACPI_LOCK(acpi); 233900a30448SNate Lawson if (sc->acpi_next_sstate != 0) { 234000a30448SNate Lawson ACPI_UNLOCK(acpi); 234100a30448SNate Lawson return (0); 234200a30448SNate Lawson } 234300a30448SNate Lawson 234400a30448SNate Lawson /* Record the pending state and notify all apm devices. */ 234500a30448SNate Lawson sc->acpi_next_sstate = state; 2346c66d2b38SJung-uk Kim #if defined(__i386__) 234700a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 234800a30448SNate Lawson clone->notify_status = APM_EV_NONE; 234900a30448SNate Lawson if ((clone->flags & ACPI_EVF_DEVD) == 0) { 235000a30448SNate Lawson selwakeuppri(&clone->sel_read, PZERO); 235100a30448SNate Lawson KNOTE_UNLOCKED(&clone->sel_read.si_note, 0); 235200a30448SNate Lawson } 235300a30448SNate Lawson } 2354c66d2b38SJung-uk Kim #endif 235500a30448SNate Lawson 23560c26519eSMitsuru IWASAKI /* If devd(8) is not running, immediately enter the sleep state. */ 2357d42f0ad8SJung-uk Kim if (!devctl_process_running()) { 23580c26519eSMitsuru IWASAKI ACPI_UNLOCK(acpi); 23597572a9c7SMitsuru IWASAKI if (ACPI_SUCCESS(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) { 23607572a9c7SMitsuru IWASAKI return (0); 23617572a9c7SMitsuru IWASAKI } else { 23627572a9c7SMitsuru IWASAKI return (ENXIO); 23637572a9c7SMitsuru IWASAKI } 23640c26519eSMitsuru IWASAKI } 23650c26519eSMitsuru IWASAKI 236600a30448SNate Lawson /* 236700a30448SNate Lawson * Set a timeout to fire if userland doesn't ack the suspend request 236800a30448SNate Lawson * in time. This way we still eventually go to sleep if we were 236900a30448SNate Lawson * overheating or running low on battery, even if userland is hung. 237000a30448SNate Lawson * We cancel this timeout once all userland acks are in or the 237100a30448SNate Lawson * suspend request is aborted. 237200a30448SNate Lawson */ 237300a30448SNate Lawson callout_reset(&sc->susp_force_to, 10 * hz, acpi_sleep_force, sc); 237400a30448SNate Lawson ACPI_UNLOCK(acpi); 2375d42f0ad8SJung-uk Kim 2376d42f0ad8SJung-uk Kim /* Now notify devd(8) also. */ 2377d42f0ad8SJung-uk Kim acpi_UserNotify("Suspend", ACPI_ROOT_OBJECT, state); 2378d42f0ad8SJung-uk Kim 237900a30448SNate Lawson return (0); 2380c66d2b38SJung-uk Kim #else 2381c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2382c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2383c66d2b38SJung-uk Kim #endif 238400a30448SNate Lawson } 238500a30448SNate Lawson 238600a30448SNate Lawson /* 238700a30448SNate Lawson * Acknowledge (or reject) a pending sleep state. The caller has 238800a30448SNate Lawson * prepared for suspend and is now ready for it to proceed. If the 238900a30448SNate Lawson * error argument is non-zero, it indicates suspend should be cancelled 239000a30448SNate Lawson * and gives an errno value describing why. Once all votes are in, 239100a30448SNate Lawson * we suspend the system. 239200a30448SNate Lawson */ 239300a30448SNate Lawson int 239400a30448SNate Lawson acpi_AckSleepState(struct apm_clone_data *clone, int error) 239500a30448SNate Lawson { 2396c66d2b38SJung-uk Kim #if defined(__amd64__) || defined(__i386__) 239700a30448SNate Lawson struct acpi_softc *sc; 239800a30448SNate Lawson int ret, sleeping; 239900a30448SNate Lawson 240000a30448SNate Lawson /* If no pending sleep state, return an error. */ 240100a30448SNate Lawson ACPI_LOCK(acpi); 240200a30448SNate Lawson sc = clone->acpi_sc; 240300a30448SNate Lawson if (sc->acpi_next_sstate == 0) { 240400a30448SNate Lawson ACPI_UNLOCK(acpi); 240500a30448SNate Lawson return (ENXIO); 240600a30448SNate Lawson } 240700a30448SNate Lawson 240800a30448SNate Lawson /* Caller wants to abort suspend process. */ 240900a30448SNate Lawson if (error) { 241000a30448SNate Lawson sc->acpi_next_sstate = 0; 241100a30448SNate Lawson callout_stop(&sc->susp_force_to); 24122d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 24132d0c82e8SJung-uk Kim "listener on %s cancelled the pending suspend\n", 241400a30448SNate Lawson devtoname(clone->cdev)); 241500a30448SNate Lawson ACPI_UNLOCK(acpi); 241600a30448SNate Lawson return (0); 241700a30448SNate Lawson } 241800a30448SNate Lawson 241900a30448SNate Lawson /* 242000a30448SNate Lawson * Mark this device as acking the suspend request. Then, walk through 242100a30448SNate Lawson * all devices, seeing if they agree yet. We only count devices that 242200a30448SNate Lawson * are writable since read-only devices couldn't ack the request. 242300a30448SNate Lawson */ 242400a30448SNate Lawson sleeping = TRUE; 2425c66d2b38SJung-uk Kim #if defined(__i386__) 2426c66d2b38SJung-uk Kim clone->notify_status = APM_EV_ACKED; 242700a30448SNate Lawson STAILQ_FOREACH(clone, &sc->apm_cdevs, entries) { 242800a30448SNate Lawson if ((clone->flags & ACPI_EVF_WRITE) != 0 && 242900a30448SNate Lawson clone->notify_status != APM_EV_ACKED) { 243000a30448SNate Lawson sleeping = FALSE; 243100a30448SNate Lawson break; 243200a30448SNate Lawson } 243300a30448SNate Lawson } 2434c66d2b38SJung-uk Kim #endif 243500a30448SNate Lawson 243600a30448SNate Lawson /* If all devices have voted "yes", we will suspend now. */ 243700a30448SNate Lawson if (sleeping) 243800a30448SNate Lawson callout_stop(&sc->susp_force_to); 243900a30448SNate Lawson ACPI_UNLOCK(acpi); 244000a30448SNate Lawson ret = 0; 244100a30448SNate Lawson if (sleeping) { 244200a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) 244300a30448SNate Lawson ret = ENODEV; 244400a30448SNate Lawson } 244500a30448SNate Lawson return (ret); 2446c66d2b38SJung-uk Kim #else 2447c66d2b38SJung-uk Kim /* This platform does not support acpi suspend/resume. */ 2448c66d2b38SJung-uk Kim return (EOPNOTSUPP); 2449c66d2b38SJung-uk Kim #endif 245000a30448SNate Lawson } 245100a30448SNate Lawson 2452ece50487SMitsuru IWASAKI static void 2453ece50487SMitsuru IWASAKI acpi_sleep_enable(void *arg) 2454ece50487SMitsuru IWASAKI { 2455d42f0ad8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 2456bee4aa4aSNate Lawson 2457a0e73a12SJung-uk Kim /* Reschedule if the system is not fully up and running. */ 2458a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) { 2459a0e73a12SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2460a0e73a12SJung-uk Kim return; 2461a0e73a12SJung-uk Kim } 2462a0e73a12SJung-uk Kim 2463d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2464a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = FALSE; 2465d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2466d42f0ad8SJung-uk Kim } 2467d42f0ad8SJung-uk Kim 2468d42f0ad8SJung-uk Kim static ACPI_STATUS 2469d42f0ad8SJung-uk Kim acpi_sleep_disable(struct acpi_softc *sc) 2470d42f0ad8SJung-uk Kim { 2471d42f0ad8SJung-uk Kim ACPI_STATUS status; 2472d42f0ad8SJung-uk Kim 2473a0e73a12SJung-uk Kim /* Fail if the system is not fully up and running. */ 2474a0e73a12SJung-uk Kim if (!AcpiGbl_SystemAwakeAndRunning) 2475a0e73a12SJung-uk Kim return (AE_ERROR); 2476a0e73a12SJung-uk Kim 2477d42f0ad8SJung-uk Kim ACPI_LOCK(acpi); 2478d42f0ad8SJung-uk Kim status = sc->acpi_sleep_disabled ? AE_ERROR : AE_OK; 2479a0e73a12SJung-uk Kim sc->acpi_sleep_disabled = TRUE; 2480d42f0ad8SJung-uk Kim ACPI_UNLOCK(acpi); 2481d42f0ad8SJung-uk Kim 2482d42f0ad8SJung-uk Kim return (status); 2483ece50487SMitsuru IWASAKI } 2484c30382dfSMitsuru IWASAKI 248515e2f34fSNate Lawson enum acpi_sleep_state { 248615e2f34fSNate Lawson ACPI_SS_NONE, 248715e2f34fSNate Lawson ACPI_SS_GPE_SET, 248815e2f34fSNate Lawson ACPI_SS_DEV_SUSPEND, 248915e2f34fSNate Lawson ACPI_SS_SLP_PREP, 249015e2f34fSNate Lawson ACPI_SS_SLEPT, 249115e2f34fSNate Lawson }; 249215e2f34fSNate Lawson 249315e32d5dSMike Smith /* 249400a30448SNate Lawson * Enter the desired system sleep state. 249515e32d5dSMike Smith * 2496be2b1797SNate Lawson * Currently we support S1-S5 but S4 is only S4BIOS 249715e32d5dSMike Smith */ 249800a30448SNate Lawson static ACPI_STATUS 249900a30448SNate Lawson acpi_EnterSleepState(struct acpi_softc *sc, int state) 250015e32d5dSMike Smith { 250115e2f34fSNate Lawson ACPI_STATUS status; 250215e2f34fSNate Lawson enum acpi_sleep_state slp_state; 250315e32d5dSMike Smith 2504b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 25050ae55423SMike Smith 2506a0e73a12SJung-uk Kim if (state < ACPI_STATE_S1 || state > ACPI_S_STATES_MAX) 250733c70d41SAndriy Gapon return_ACPI_STATUS (AE_BAD_PARAMETER); 2508a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) { 2509a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "Sleep state S%d not supported by BIOS\n", 2510a0e73a12SJung-uk Kim state); 2511a0e73a12SJung-uk Kim return (AE_SUPPORT); 2512a0e73a12SJung-uk Kim } 2513a0e73a12SJung-uk Kim 2514a0e73a12SJung-uk Kim /* Re-entry once we're suspending is not allowed. */ 2515a0e73a12SJung-uk Kim status = acpi_sleep_disable(sc); 2516a0e73a12SJung-uk Kim if (ACPI_FAILURE(status)) { 2517a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, 2518a0e73a12SJung-uk Kim "suspend request ignored (not ready yet)\n"); 2519a0e73a12SJung-uk Kim return (status); 2520a0e73a12SJung-uk Kim } 252133c70d41SAndriy Gapon 252233c70d41SAndriy Gapon if (state == ACPI_STATE_S5) { 252333c70d41SAndriy Gapon /* 252433c70d41SAndriy Gapon * Shut down cleanly and power off. This will call us back through the 252533c70d41SAndriy Gapon * shutdown handlers. 252633c70d41SAndriy Gapon */ 252733c70d41SAndriy Gapon shutdown_nice(RB_POWEROFF); 252833c70d41SAndriy Gapon return_ACPI_STATUS (AE_OK); 252933c70d41SAndriy Gapon } 253033c70d41SAndriy Gapon 2531c66d2b38SJung-uk Kim #ifdef SMP 2532c66d2b38SJung-uk Kim thread_lock(curthread); 2533c66d2b38SJung-uk Kim sched_bind(curthread, 0); 2534c66d2b38SJung-uk Kim thread_unlock(curthread); 2535c66d2b38SJung-uk Kim #endif 2536c66d2b38SJung-uk Kim 25375d3d03f1SNate Lawson /* 25385d3d03f1SNate Lawson * Be sure to hold Giant across DEVICE_SUSPEND/RESUME since non-MPSAFE 25395d3d03f1SNate Lawson * drivers need this. 25405d3d03f1SNate Lawson */ 25415d3d03f1SNate Lawson mtx_lock(&Giant); 2542c66d2b38SJung-uk Kim 254315e2f34fSNate Lawson slp_state = ACPI_SS_NONE; 254456d8cb57SMitsuru IWASAKI 2545a1fccb47SMitsuru IWASAKI sc->acpi_sstate = state; 2546a1fccb47SMitsuru IWASAKI 2547d4b9ff91SNate Lawson /* Enable any GPEs as appropriate and requested by the user. */ 2548d4b9ff91SNate Lawson acpi_wake_prep_walk(state); 254915e2f34fSNate Lawson slp_state = ACPI_SS_GPE_SET; 2550e8b4d56eSNate Lawson 255115e32d5dSMike Smith /* 2552c7f88fc3SNate Lawson * Inform all devices that we are going to sleep. If at least one 2553c7f88fc3SNate Lawson * device fails, DEVICE_SUSPEND() automatically resumes the tree. 255415e32d5dSMike Smith * 2555c7f88fc3SNate Lawson * XXX Note that a better two-pass approach with a 'veto' pass 2556c7f88fc3SNate Lawson * followed by a "real thing" pass would be better, but the current 2557c7f88fc3SNate Lawson * bus interface does not provide for this. 255815e32d5dSMike Smith */ 255915e2f34fSNate Lawson if (DEVICE_SUSPEND(root_bus) != 0) { 256015e2f34fSNate Lawson device_printf(sc->acpi_dev, "device_suspend failed\n"); 256133c70d41SAndriy Gapon goto backout; 256215e2f34fSNate Lawson } 256315e2f34fSNate Lawson slp_state = ACPI_SS_DEV_SUSPEND; 2564b9c780d6SMitsuru IWASAKI 256593bfd059SNate Lawson /* If testing device suspend only, back out of everything here. */ 256693bfd059SNate Lawson if (acpi_susp_bounce) 256733c70d41SAndriy Gapon goto backout; 256893bfd059SNate Lawson 2569be2b1797SNate Lawson status = AcpiEnterSleepStatePrep(state); 2570be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2571b9c780d6SMitsuru IWASAKI device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", 2572b9c780d6SMitsuru IWASAKI AcpiFormatException(status)); 257333c70d41SAndriy Gapon goto backout; 2574b9c780d6SMitsuru IWASAKI } 257515e2f34fSNate Lawson slp_state = ACPI_SS_SLP_PREP; 2576b9c780d6SMitsuru IWASAKI 2577be2b1797SNate Lawson if (sc->acpi_sleep_delay > 0) 2578ff01efb5SMitsuru IWASAKI DELAY(sc->acpi_sleep_delay * 1000000); 2579ff01efb5SMitsuru IWASAKI 25806161544cSTakanori Watanabe if (state != ACPI_STATE_S1) { 25816161544cSTakanori Watanabe acpi_sleep_machdep(sc, state); 25826161544cSTakanori Watanabe 25836161544cSTakanori Watanabe /* Re-enable ACPI hardware on wakeup from sleep state 4. */ 2584be2b1797SNate Lawson if (state == ACPI_STATE_S4) 2585964679ceSMitsuru IWASAKI AcpiEnable(); 25866161544cSTakanori Watanabe } else { 2587c7f88fc3SNate Lawson ACPI_DISABLE_IRQS(); 2588adad4744SNate Lawson status = AcpiEnterSleepState(state); 2589be2b1797SNate Lawson if (ACPI_FAILURE(status)) { 2590be2b1797SNate Lawson device_printf(sc->acpi_dev, "AcpiEnterSleepState failed - %s\n", 2591be2b1797SNate Lawson AcpiFormatException(status)); 259233c70d41SAndriy Gapon goto backout; 259315e32d5dSMike Smith } 25946161544cSTakanori Watanabe } 259515e2f34fSNate Lawson slp_state = ACPI_SS_SLEPT; 2596ece50487SMitsuru IWASAKI 259715e2f34fSNate Lawson /* 259815e2f34fSNate Lawson * Back out state according to how far along we got in the suspend 259915e2f34fSNate Lawson * process. This handles both the error and success cases. 260015e2f34fSNate Lawson */ 260133c70d41SAndriy Gapon backout: 260200a30448SNate Lawson sc->acpi_next_sstate = 0; 260315e2f34fSNate Lawson if (slp_state >= ACPI_SS_GPE_SET) { 260415e2f34fSNate Lawson acpi_wake_prep_walk(state); 260515e2f34fSNate Lawson sc->acpi_sstate = ACPI_STATE_S0; 260615e2f34fSNate Lawson } 260715e2f34fSNate Lawson if (slp_state >= ACPI_SS_SLP_PREP) 260815e2f34fSNate Lawson AcpiLeaveSleepState(state); 2609071339e2SNate Lawson if (slp_state >= ACPI_SS_DEV_SUSPEND) 2610071339e2SNate Lawson DEVICE_RESUME(root_bus); 261115e2f34fSNate Lawson if (slp_state >= ACPI_SS_SLEPT) 261215e2f34fSNate Lawson acpi_enable_fixed_events(sc); 261315e2f34fSNate Lawson 26145d3d03f1SNate Lawson mtx_unlock(&Giant); 2615c66d2b38SJung-uk Kim 2616c66d2b38SJung-uk Kim #ifdef SMP 2617c66d2b38SJung-uk Kim thread_lock(curthread); 2618c66d2b38SJung-uk Kim sched_unbind(curthread); 2619c66d2b38SJung-uk Kim thread_unlock(curthread); 2620c66d2b38SJung-uk Kim #endif 2621c66d2b38SJung-uk Kim 2622d42f0ad8SJung-uk Kim /* Allow another sleep request after a while. */ 2623d42f0ad8SJung-uk Kim timeout(acpi_sleep_enable, sc, hz * ACPI_MINIMUM_AWAKETIME); 2624d42f0ad8SJung-uk Kim 2625d42f0ad8SJung-uk Kim /* Run /etc/rc.resume after we are back. */ 2626d42f0ad8SJung-uk Kim if (devctl_process_running()) 2627d42f0ad8SJung-uk Kim acpi_UserNotify("Resume", ACPI_ROOT_OBJECT, state); 2628d42f0ad8SJung-uk Kim 26290ae55423SMike Smith return_ACPI_STATUS (status); 263015e32d5dSMike Smith } 263115e32d5dSMike Smith 26320755473bSJung-uk Kim void 26330755473bSJung-uk Kim acpi_resync_clock(struct acpi_softc *sc) 26340755473bSJung-uk Kim { 26350755473bSJung-uk Kim 26360755473bSJung-uk Kim if (!acpi_reset_clock) 26370755473bSJung-uk Kim return; 26380755473bSJung-uk Kim 26390755473bSJung-uk Kim /* 26400755473bSJung-uk Kim * Warm up timecounter again and reset system clock. 26410755473bSJung-uk Kim */ 26420755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 26430755473bSJung-uk Kim (void)timecounter->tc_get_timecount(timecounter); 26440755473bSJung-uk Kim inittodr(time_second + sc->acpi_sleep_delay); 26450755473bSJung-uk Kim } 26460755473bSJung-uk Kim 2647e8b4d56eSNate Lawson /* Initialize a device's wake GPE. */ 2648e8b4d56eSNate Lawson int 2649e8b4d56eSNate Lawson acpi_wake_init(device_t dev, int type) 2650e8b4d56eSNate Lawson { 2651e8b4d56eSNate Lawson struct acpi_prw_data prw; 2652e8b4d56eSNate Lawson 2653e8b4d56eSNate Lawson /* Evaluate _PRW to find the GPE. */ 2654e8b4d56eSNate Lawson if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0) 2655e8b4d56eSNate Lawson return (ENXIO); 2656e8b4d56eSNate Lawson 2657e8b4d56eSNate Lawson /* Set the requested type for the GPE (runtime, wake, or both). */ 2658e8b4d56eSNate Lawson if (ACPI_FAILURE(AcpiSetGpeType(prw.gpe_handle, prw.gpe_bit, type))) { 2659e8b4d56eSNate Lawson device_printf(dev, "set GPE type failed\n"); 2660e8b4d56eSNate Lawson return (ENXIO); 2661e8b4d56eSNate Lawson } 2662e8b4d56eSNate Lawson 2663e8b4d56eSNate Lawson return (0); 2664e8b4d56eSNate Lawson } 2665e8b4d56eSNate Lawson 2666e8b4d56eSNate Lawson /* Enable or disable the device's wake GPE. */ 2667e8b4d56eSNate Lawson int 2668e8b4d56eSNate Lawson acpi_wake_set_enable(device_t dev, int enable) 2669e8b4d56eSNate Lawson { 2670e8b4d56eSNate Lawson struct acpi_prw_data prw; 2671e8b4d56eSNate Lawson ACPI_STATUS status; 2672e8b4d56eSNate Lawson int flags; 2673e8b4d56eSNate Lawson 2674d4b9ff91SNate Lawson /* Make sure the device supports waking the system and get the GPE. */ 26752be4e471SJung-uk Kim if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0) 2676e8b4d56eSNate Lawson return (ENXIO); 2677e8b4d56eSNate Lawson 2678d4b9ff91SNate Lawson flags = acpi_get_flags(dev); 2679e8b4d56eSNate Lawson if (enable) { 2680e8b4d56eSNate Lawson status = AcpiEnableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); 2681e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2682e8b4d56eSNate Lawson device_printf(dev, "enable wake failed\n"); 2683e8b4d56eSNate Lawson return (ENXIO); 2684e8b4d56eSNate Lawson } 2685d4b9ff91SNate Lawson acpi_set_flags(dev, flags | ACPI_FLAG_WAKE_ENABLED); 2686e8b4d56eSNate Lawson } else { 2687e8b4d56eSNate Lawson status = AcpiDisableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); 2688e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) { 2689e8b4d56eSNate Lawson device_printf(dev, "disable wake failed\n"); 2690e8b4d56eSNate Lawson return (ENXIO); 2691e8b4d56eSNate Lawson } 2692d4b9ff91SNate Lawson acpi_set_flags(dev, flags & ~ACPI_FLAG_WAKE_ENABLED); 2693e8b4d56eSNate Lawson } 2694e8b4d56eSNate Lawson 2695e8b4d56eSNate Lawson return (0); 2696e8b4d56eSNate Lawson } 2697e8b4d56eSNate Lawson 2698d4b9ff91SNate Lawson static int 2699d4b9ff91SNate Lawson acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate) 2700e8b4d56eSNate Lawson { 2701e8b4d56eSNate Lawson struct acpi_prw_data prw; 2702d4b9ff91SNate Lawson device_t dev; 2703e8b4d56eSNate Lawson 2704d4b9ff91SNate Lawson /* Check that this is a wake-capable device and get its GPE. */ 2705e8b4d56eSNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2706e8b4d56eSNate Lawson return (ENXIO); 2707d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2708e8b4d56eSNate Lawson 2709e8b4d56eSNate Lawson /* 2710d4b9ff91SNate Lawson * The destination sleep state must be less than (i.e., higher power) 2711d4b9ff91SNate Lawson * or equal to the value specified by _PRW. If this GPE cannot be 2712d4b9ff91SNate Lawson * enabled for the next sleep state, then disable it. If it can and 2713d4b9ff91SNate Lawson * the user requested it be enabled, turn on any required power resources 2714d4b9ff91SNate Lawson * and set _PSW. 2715e8b4d56eSNate Lawson */ 2716d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 2717cc85c78cSNate Lawson AcpiDisableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); 2718e8b4d56eSNate Lawson if (bootverbose) 2719d4b9ff91SNate Lawson device_printf(dev, "wake_prep disabled wake for %s (S%d)\n", 2720d4b9ff91SNate Lawson acpi_name(handle), sstate); 2721d4b9ff91SNate Lawson } else if (dev && (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) != 0) { 2722d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 1); 2723d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 1); 2724d4b9ff91SNate Lawson if (bootverbose) 2725d4b9ff91SNate Lawson device_printf(dev, "wake_prep enabled for %s (S%d)\n", 2726d4b9ff91SNate Lawson acpi_name(handle), sstate); 2727d4b9ff91SNate Lawson } 2728cc85c78cSNate Lawson 2729cc85c78cSNate Lawson return (0); 2730e8b4d56eSNate Lawson } 2731e8b4d56eSNate Lawson 2732d4b9ff91SNate Lawson static int 2733d4b9ff91SNate Lawson acpi_wake_run_prep(ACPI_HANDLE handle, int sstate) 2734cc85c78cSNate Lawson { 2735cc85c78cSNate Lawson struct acpi_prw_data prw; 2736d4b9ff91SNate Lawson device_t dev; 2737cc85c78cSNate Lawson 2738cc85c78cSNate Lawson /* 2739d4b9ff91SNate Lawson * Check that this is a wake-capable device and get its GPE. Return 2740d4b9ff91SNate Lawson * now if the user didn't enable this device for wake. 2741cc85c78cSNate Lawson */ 2742d4b9ff91SNate Lawson if (acpi_parse_prw(handle, &prw) != 0) 2743d4b9ff91SNate Lawson return (ENXIO); 2744d4b9ff91SNate Lawson dev = acpi_get_device(handle); 2745d4b9ff91SNate Lawson if (dev == NULL || (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) == 0) 2746d4b9ff91SNate Lawson return (0); 2747cc85c78cSNate Lawson 2748d4b9ff91SNate Lawson /* 2749d4b9ff91SNate Lawson * If this GPE couldn't be enabled for the previous sleep state, it was 2750d4b9ff91SNate Lawson * disabled before going to sleep so re-enable it. If it was enabled, 2751d4b9ff91SNate Lawson * clear _PSW and turn off any power resources it used. 2752d4b9ff91SNate Lawson */ 2753d4b9ff91SNate Lawson if (sstate > prw.lowest_wake) { 2754cc85c78cSNate Lawson AcpiEnableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); 2755d4b9ff91SNate Lawson if (bootverbose) 2756d4b9ff91SNate Lawson device_printf(dev, "run_prep re-enabled %s\n", acpi_name(handle)); 2757d4b9ff91SNate Lawson } else { 2758d4b9ff91SNate Lawson acpi_SetInteger(handle, "_PSW", 0); 2759d4b9ff91SNate Lawson acpi_pwr_wake_enable(handle, 0); 2760d4b9ff91SNate Lawson if (bootverbose) 2761d4b9ff91SNate Lawson device_printf(dev, "run_prep cleaned up for %s\n", 2762d4b9ff91SNate Lawson acpi_name(handle)); 2763d4b9ff91SNate Lawson } 2764d4b9ff91SNate Lawson 2765e8b4d56eSNate Lawson return (0); 2766e8b4d56eSNate Lawson } 2767e8b4d56eSNate Lawson 2768e8b4d56eSNate Lawson static ACPI_STATUS 2769d4b9ff91SNate Lawson acpi_wake_prep(ACPI_HANDLE handle, UINT32 level, void *context, void **status) 2770e8b4d56eSNate Lawson { 2771d4b9ff91SNate Lawson int sstate; 2772e8b4d56eSNate Lawson 2773d4b9ff91SNate Lawson /* If suspending, run the sleep prep function, otherwise wake. */ 2774d4b9ff91SNate Lawson sstate = *(int *)context; 2775d4b9ff91SNate Lawson if (AcpiGbl_SystemAwakeAndRunning) 2776d4b9ff91SNate Lawson acpi_wake_sleep_prep(handle, sstate); 2777d4b9ff91SNate Lawson else 2778d4b9ff91SNate Lawson acpi_wake_run_prep(handle, sstate); 2779e8b4d56eSNate Lawson return (AE_OK); 2780e8b4d56eSNate Lawson } 2781e8b4d56eSNate Lawson 2782d4b9ff91SNate Lawson /* Walk the tree rooted at acpi0 to prep devices for suspend/resume. */ 2783e8b4d56eSNate Lawson static int 2784d4b9ff91SNate Lawson acpi_wake_prep_walk(int sstate) 2785e8b4d56eSNate Lawson { 2786e8b4d56eSNate Lawson ACPI_HANDLE sb_handle; 2787e8b4d56eSNate Lawson 2788e8b4d56eSNate Lawson if (ACPI_SUCCESS(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sb_handle))) 2789d4b9ff91SNate Lawson AcpiWalkNamespace(ACPI_TYPE_DEVICE, sb_handle, 100, 2790d4b9ff91SNate Lawson acpi_wake_prep, &sstate, NULL); 2791e8b4d56eSNate Lawson return (0); 2792e8b4d56eSNate Lawson } 2793e8b4d56eSNate Lawson 279488a79fc0SNate Lawson /* Walk the tree rooted at acpi0 to attach per-device wake sysctls. */ 279588a79fc0SNate Lawson static int 279688a79fc0SNate Lawson acpi_wake_sysctl_walk(device_t dev) 279788a79fc0SNate Lawson { 279888a79fc0SNate Lawson int error, i, numdevs; 279988a79fc0SNate Lawson device_t *devlist; 280088a79fc0SNate Lawson device_t child; 2801d4b9ff91SNate Lawson ACPI_STATUS status; 280288a79fc0SNate Lawson 280388a79fc0SNate Lawson error = device_get_children(dev, &devlist, &numdevs); 28041c9ec538SNate Lawson if (error != 0 || numdevs == 0) { 28051c9ec538SNate Lawson if (numdevs == 0) 28061c9ec538SNate Lawson free(devlist, M_TEMP); 280788a79fc0SNate Lawson return (error); 28081c9ec538SNate Lawson } 280988a79fc0SNate Lawson for (i = 0; i < numdevs; i++) { 281088a79fc0SNate Lawson child = devlist[i]; 2811d4b9ff91SNate Lawson acpi_wake_sysctl_walk(child); 281288a79fc0SNate Lawson if (!device_is_attached(child)) 281388a79fc0SNate Lawson continue; 2814d4b9ff91SNate Lawson status = AcpiEvaluateObject(acpi_get_handle(child), "_PRW", NULL, NULL); 2815d4b9ff91SNate Lawson if (ACPI_SUCCESS(status)) { 281688a79fc0SNate Lawson SYSCTL_ADD_PROC(device_get_sysctl_ctx(child), 281788a79fc0SNate Lawson SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO, 281888a79fc0SNate Lawson "wake", CTLTYPE_INT | CTLFLAG_RW, child, 0, 281988a79fc0SNate Lawson acpi_wake_set_sysctl, "I", "Device set to wake the system"); 282088a79fc0SNate Lawson } 282188a79fc0SNate Lawson } 282288a79fc0SNate Lawson free(devlist, M_TEMP); 282388a79fc0SNate Lawson 282488a79fc0SNate Lawson return (0); 282588a79fc0SNate Lawson } 282688a79fc0SNate Lawson 282788a79fc0SNate Lawson /* Enable or disable wake from userland. */ 282888a79fc0SNate Lawson static int 282988a79fc0SNate Lawson acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS) 283088a79fc0SNate Lawson { 283188a79fc0SNate Lawson int enable, error; 283288a79fc0SNate Lawson device_t dev; 283388a79fc0SNate Lawson 283488a79fc0SNate Lawson dev = (device_t)arg1; 2835d4b9ff91SNate Lawson enable = (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) ? 1 : 0; 283688a79fc0SNate Lawson 283788a79fc0SNate Lawson error = sysctl_handle_int(oidp, &enable, 0, req); 283888a79fc0SNate Lawson if (error != 0 || req->newptr == NULL) 283988a79fc0SNate Lawson return (error); 284088a79fc0SNate Lawson if (enable != 0 && enable != 1) 284188a79fc0SNate Lawson return (EINVAL); 284288a79fc0SNate Lawson 284388a79fc0SNate Lawson return (acpi_wake_set_enable(dev, enable)); 284488a79fc0SNate Lawson } 284588a79fc0SNate Lawson 2846e8b4d56eSNate Lawson /* Parse a device's _PRW into a structure. */ 2847d4b9ff91SNate Lawson int 2848e8b4d56eSNate Lawson acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw) 2849e8b4d56eSNate Lawson { 2850e8b4d56eSNate Lawson ACPI_STATUS status; 2851e8b4d56eSNate Lawson ACPI_BUFFER prw_buffer; 2852e8b4d56eSNate Lawson ACPI_OBJECT *res, *res2; 2853d4b9ff91SNate Lawson int error, i, power_count; 2854e8b4d56eSNate Lawson 2855e8b4d56eSNate Lawson if (h == NULL || prw == NULL) 2856e8b4d56eSNate Lawson return (EINVAL); 2857e8b4d56eSNate Lawson 2858e8b4d56eSNate Lawson /* 2859e8b4d56eSNate Lawson * The _PRW object (7.2.9) is only required for devices that have the 2860e8b4d56eSNate Lawson * ability to wake the system from a sleeping state. 2861e8b4d56eSNate Lawson */ 2862e8b4d56eSNate Lawson error = EINVAL; 2863e8b4d56eSNate Lawson prw_buffer.Pointer = NULL; 2864e8b4d56eSNate Lawson prw_buffer.Length = ACPI_ALLOCATE_BUFFER; 2865e8b4d56eSNate Lawson status = AcpiEvaluateObject(h, "_PRW", NULL, &prw_buffer); 2866e8b4d56eSNate Lawson if (ACPI_FAILURE(status)) 2867e8b4d56eSNate Lawson return (ENOENT); 2868e8b4d56eSNate Lawson res = (ACPI_OBJECT *)prw_buffer.Pointer; 2869e8b4d56eSNate Lawson if (res == NULL) 2870e8b4d56eSNate Lawson return (ENOENT); 2871e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res, 2)) 2872e8b4d56eSNate Lawson goto out; 2873e8b4d56eSNate Lawson 2874e8b4d56eSNate Lawson /* 2875e8b4d56eSNate Lawson * Element 1 of the _PRW object: 2876e8b4d56eSNate Lawson * The lowest power system sleeping state that can be entered while still 2877e8b4d56eSNate Lawson * providing wake functionality. The sleeping state being entered must 2878e8b4d56eSNate Lawson * be less than (i.e., higher power) or equal to this value. 2879e8b4d56eSNate Lawson */ 2880e8b4d56eSNate Lawson if (acpi_PkgInt32(res, 1, &prw->lowest_wake) != 0) 2881e8b4d56eSNate Lawson goto out; 2882e8b4d56eSNate Lawson 2883e8b4d56eSNate Lawson /* 2884e8b4d56eSNate Lawson * Element 0 of the _PRW object: 2885e8b4d56eSNate Lawson */ 2886e8b4d56eSNate Lawson switch (res->Package.Elements[0].Type) { 2887e8b4d56eSNate Lawson case ACPI_TYPE_INTEGER: 2888e8b4d56eSNate Lawson /* 2889e8b4d56eSNate Lawson * If the data type of this package element is numeric, then this 2890e8b4d56eSNate Lawson * _PRW package element is the bit index in the GPEx_EN, in the 2891e8b4d56eSNate Lawson * GPE blocks described in the FADT, of the enable bit that is 2892e8b4d56eSNate Lawson * enabled for the wake event. 2893e8b4d56eSNate Lawson */ 2894e8b4d56eSNate Lawson prw->gpe_handle = NULL; 2895e8b4d56eSNate Lawson prw->gpe_bit = res->Package.Elements[0].Integer.Value; 2896e8b4d56eSNate Lawson error = 0; 2897e8b4d56eSNate Lawson break; 2898e8b4d56eSNate Lawson case ACPI_TYPE_PACKAGE: 2899e8b4d56eSNate Lawson /* 2900e8b4d56eSNate Lawson * If the data type of this package element is a package, then this 2901e8b4d56eSNate Lawson * _PRW package element is itself a package containing two 2902e8b4d56eSNate Lawson * elements. The first is an object reference to the GPE Block 2903e8b4d56eSNate Lawson * device that contains the GPE that will be triggered by the wake 2904e8b4d56eSNate Lawson * event. The second element is numeric and it contains the bit 2905e8b4d56eSNate Lawson * index in the GPEx_EN, in the GPE Block referenced by the 2906e8b4d56eSNate Lawson * first element in the package, of the enable bit that is enabled for 2907e8b4d56eSNate Lawson * the wake event. 2908e8b4d56eSNate Lawson * 2909e8b4d56eSNate Lawson * For example, if this field is a package then it is of the form: 2910e8b4d56eSNate Lawson * Package() {\_SB.PCI0.ISA.GPE, 2} 2911e8b4d56eSNate Lawson */ 2912e8b4d56eSNate Lawson res2 = &res->Package.Elements[0]; 2913e8b4d56eSNate Lawson if (!ACPI_PKG_VALID(res2, 2)) 2914e8b4d56eSNate Lawson goto out; 2915e8b4d56eSNate Lawson prw->gpe_handle = acpi_GetReference(NULL, &res2->Package.Elements[0]); 2916e8b4d56eSNate Lawson if (prw->gpe_handle == NULL) 2917e8b4d56eSNate Lawson goto out; 2918e8b4d56eSNate Lawson if (acpi_PkgInt32(res2, 1, &prw->gpe_bit) != 0) 2919e8b4d56eSNate Lawson goto out; 2920e8b4d56eSNate Lawson error = 0; 2921e8b4d56eSNate Lawson break; 2922e8b4d56eSNate Lawson default: 2923e8b4d56eSNate Lawson goto out; 2924e8b4d56eSNate Lawson } 2925e8b4d56eSNate Lawson 2926d4b9ff91SNate Lawson /* Elements 2 to N of the _PRW object are power resources. */ 2927d4b9ff91SNate Lawson power_count = res->Package.Count - 2; 2928d4b9ff91SNate Lawson if (power_count > ACPI_PRW_MAX_POWERRES) { 2929d4b9ff91SNate Lawson printf("ACPI device %s has too many power resources\n", acpi_name(h)); 2930d4b9ff91SNate Lawson power_count = 0; 2931d4b9ff91SNate Lawson } 2932d4b9ff91SNate Lawson prw->power_res_count = power_count; 2933d4b9ff91SNate Lawson for (i = 0; i < power_count; i++) 2934d4b9ff91SNate Lawson prw->power_res[i] = res->Package.Elements[i]; 2935e8b4d56eSNate Lawson 2936e8b4d56eSNate Lawson out: 2937e8b4d56eSNate Lawson if (prw_buffer.Pointer != NULL) 2938e8b4d56eSNate Lawson AcpiOsFree(prw_buffer.Pointer); 2939e8b4d56eSNate Lawson return (error); 2940e8b4d56eSNate Lawson } 2941e8b4d56eSNate Lawson 294215e32d5dSMike Smith /* 294315e32d5dSMike Smith * ACPI Event Handlers 294415e32d5dSMike Smith */ 294515e32d5dSMike Smith 294615e32d5dSMike Smith /* System Event Handlers (registered by EVENTHANDLER_REGISTER) */ 294715e32d5dSMike Smith 294815e32d5dSMike Smith static void 294915e32d5dSMike Smith acpi_system_eventhandler_sleep(void *arg, int state) 295015e32d5dSMike Smith { 29512d0c82e8SJung-uk Kim struct acpi_softc *sc = (struct acpi_softc *)arg; 295200a30448SNate Lawson int ret; 2953bee4aa4aSNate Lawson 2954b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 295515e32d5dSMike Smith 2956a0e73a12SJung-uk Kim /* Check if button action is disabled or unknown. */ 2957a0e73a12SJung-uk Kim if (state == ACPI_STATE_UNKNOWN) 2958813d6dcaSNate Lawson return; 2959813d6dcaSNate Lawson 296000a30448SNate Lawson /* Request that the system prepare to enter the given suspend state. */ 29612d0c82e8SJung-uk Kim ret = acpi_ReqSleepState(sc, state); 296200a30448SNate Lawson if (ret != 0) 29632d0c82e8SJung-uk Kim device_printf(sc->acpi_dev, 29642d0c82e8SJung-uk Kim "request to enter state S%d failed (err %d)\n", state, ret); 2965bee4aa4aSNate Lawson 29660ae55423SMike Smith return_VOID; 296715e32d5dSMike Smith } 296815e32d5dSMike Smith 296915e32d5dSMike Smith static void 297015e32d5dSMike Smith acpi_system_eventhandler_wakeup(void *arg, int state) 297115e32d5dSMike Smith { 2972bee4aa4aSNate Lawson 2973b4a05238SPeter Wemm ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); 29740ae55423SMike Smith 2975bee4aa4aSNate Lawson /* Currently, nothing to do for wakeup. */ 2976cb9b0d80SMike Smith 29770ae55423SMike Smith return_VOID; 297815e32d5dSMike Smith } 297915e32d5dSMike Smith 298015e32d5dSMike Smith /* 298115e32d5dSMike Smith * ACPICA Event Handlers (FixedEvent, also called from button notify handler) 298215e32d5dSMike Smith */ 298315e32d5dSMike Smith UINT32 298433febf93SNate Lawson acpi_event_power_button_sleep(void *context) 298515e32d5dSMike Smith { 298615e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 298715e32d5dSMike Smith 2988b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 29890ae55423SMike Smith 299015e32d5dSMike Smith EVENTHANDLER_INVOKE(acpi_sleep_event, sc->acpi_power_button_sx); 29910ae55423SMike Smith 2992b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 299315e32d5dSMike Smith } 299415e32d5dSMike Smith 299515e32d5dSMike Smith UINT32 299633febf93SNate Lawson acpi_event_power_button_wake(void *context) 299715e32d5dSMike Smith { 299815e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 299915e32d5dSMike Smith 3000b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 30010ae55423SMike Smith 300215e32d5dSMike Smith EVENTHANDLER_INVOKE(acpi_wakeup_event, sc->acpi_power_button_sx); 30030ae55423SMike Smith 3004b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 300515e32d5dSMike Smith } 300615e32d5dSMike Smith 300715e32d5dSMike Smith UINT32 300833febf93SNate Lawson acpi_event_sleep_button_sleep(void *context) 300915e32d5dSMike Smith { 301015e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 301115e32d5dSMike Smith 3012b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 30130ae55423SMike Smith 301415e32d5dSMike Smith EVENTHANDLER_INVOKE(acpi_sleep_event, sc->acpi_sleep_button_sx); 30150ae55423SMike Smith 3016b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 301715e32d5dSMike Smith } 301815e32d5dSMike Smith 301915e32d5dSMike Smith UINT32 302033febf93SNate Lawson acpi_event_sleep_button_wake(void *context) 302115e32d5dSMike Smith { 302215e32d5dSMike Smith struct acpi_softc *sc = (struct acpi_softc *)context; 302315e32d5dSMike Smith 3024b4a05238SPeter Wemm ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 30250ae55423SMike Smith 302615e32d5dSMike Smith EVENTHANDLER_INVOKE(acpi_wakeup_event, sc->acpi_sleep_button_sx); 30270ae55423SMike Smith 3028b53f2771SMike Smith return_VALUE (ACPI_INTERRUPT_HANDLED); 302915e32d5dSMike Smith } 303015e32d5dSMike Smith 303115e32d5dSMike Smith /* 3032bee4aa4aSNate Lawson * XXX This static buffer is suboptimal. There is no locking so only 3033bee4aa4aSNate Lawson * use this for single-threaded callers. 303415e32d5dSMike Smith */ 303515e32d5dSMike Smith char * 303615e32d5dSMike Smith acpi_name(ACPI_HANDLE handle) 303715e32d5dSMike Smith { 3038bee4aa4aSNate Lawson ACPI_BUFFER buf; 3039bee4aa4aSNate Lawson static char data[256]; 304015e32d5dSMike Smith 3041bee4aa4aSNate Lawson buf.Length = sizeof(data); 3042bee4aa4aSNate Lawson buf.Pointer = data; 3043cb9b0d80SMike Smith 30440a9a1f44SNate Lawson if (handle && ACPI_SUCCESS(AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf))) 3045bee4aa4aSNate Lawson return (data); 3046bee4aa4aSNate Lawson return ("(unknown)"); 304715e32d5dSMike Smith } 304815e32d5dSMike Smith 304915e32d5dSMike Smith /* 305015e32d5dSMike Smith * Debugging/bug-avoidance. Avoid trying to fetch info on various 305115e32d5dSMike Smith * parts of the namespace. 305215e32d5dSMike Smith */ 305315e32d5dSMike Smith int 305415e32d5dSMike Smith acpi_avoid(ACPI_HANDLE handle) 305515e32d5dSMike Smith { 30563c600cfbSJohn Baldwin char *cp, *env, *np; 305715e32d5dSMike Smith int len; 305815e32d5dSMike Smith 305915e32d5dSMike Smith np = acpi_name(handle); 306015e32d5dSMike Smith if (*np == '\\') 306115e32d5dSMike Smith np++; 30623c600cfbSJohn Baldwin if ((env = getenv("debug.acpi.avoid")) == NULL) 306315e32d5dSMike Smith return (0); 306415e32d5dSMike Smith 3065be2b1797SNate Lawson /* Scan the avoid list checking for a match */ 30663c600cfbSJohn Baldwin cp = env; 306715e32d5dSMike Smith for (;;) { 3068bee4aa4aSNate Lawson while (*cp != 0 && isspace(*cp)) 306915e32d5dSMike Smith cp++; 307015e32d5dSMike Smith if (*cp == 0) 307115e32d5dSMike Smith break; 307215e32d5dSMike Smith len = 0; 3073bee4aa4aSNate Lawson while (cp[len] != 0 && !isspace(cp[len])) 307415e32d5dSMike Smith len++; 3075d786139cSMaxime Henrion if (!strncmp(cp, np, len)) { 30763c600cfbSJohn Baldwin freeenv(env); 30770ae55423SMike Smith return(1); 3078d786139cSMaxime Henrion } 30790ae55423SMike Smith cp += len; 30800ae55423SMike Smith } 30813c600cfbSJohn Baldwin freeenv(env); 3082be2b1797SNate Lawson 30830ae55423SMike Smith return (0); 30840ae55423SMike Smith } 30850ae55423SMike Smith 30860ae55423SMike Smith /* 30870ae55423SMike Smith * Debugging/bug-avoidance. Disable ACPI subsystem components. 30880ae55423SMike Smith */ 30890ae55423SMike Smith int 30900ae55423SMike Smith acpi_disabled(char *subsys) 30910ae55423SMike Smith { 309278689b15SMaxime Henrion char *cp, *env; 30930ae55423SMike Smith int len; 30940ae55423SMike Smith 30953184cf5aSNate Lawson if ((env = getenv("debug.acpi.disabled")) == NULL) 30960ae55423SMike Smith return (0); 30973184cf5aSNate Lawson if (strcmp(env, "all") == 0) { 309878689b15SMaxime Henrion freeenv(env); 30990ae55423SMike Smith return (1); 3100d786139cSMaxime Henrion } 31010ae55423SMike Smith 31023184cf5aSNate Lawson /* Scan the disable list, checking for a match. */ 310378689b15SMaxime Henrion cp = env; 31040ae55423SMike Smith for (;;) { 31053184cf5aSNate Lawson while (*cp != '\0' && isspace(*cp)) 31060ae55423SMike Smith cp++; 31073184cf5aSNate Lawson if (*cp == '\0') 31080ae55423SMike Smith break; 31090ae55423SMike Smith len = 0; 31103184cf5aSNate Lawson while (cp[len] != '\0' && !isspace(cp[len])) 31110ae55423SMike Smith len++; 31123184cf5aSNate Lawson if (strncmp(cp, subsys, len) == 0) { 311378689b15SMaxime Henrion freeenv(env); 311415e32d5dSMike Smith return (1); 3115d786139cSMaxime Henrion } 311615e32d5dSMike Smith cp += len; 311715e32d5dSMike Smith } 311878689b15SMaxime Henrion freeenv(env); 3119be2b1797SNate Lawson 312015e32d5dSMike Smith return (0); 312115e32d5dSMike Smith } 312215e32d5dSMike Smith 312315e32d5dSMike Smith /* 312415e32d5dSMike Smith * Control interface. 312515e32d5dSMike Smith * 31260ae55423SMike Smith * We multiplex ioctls for all participating ACPI devices here. Individual 3127be2b1797SNate Lawson * drivers wanting to be accessible via /dev/acpi should use the 3128be2b1797SNate Lawson * register/deregister interface to make their handlers visible. 312915e32d5dSMike Smith */ 31300ae55423SMike Smith struct acpi_ioctl_hook 31310ae55423SMike Smith { 31320ae55423SMike Smith TAILQ_ENTRY(acpi_ioctl_hook) link; 31330ae55423SMike Smith u_long cmd; 3134be2b1797SNate Lawson acpi_ioctl_fn fn; 31350ae55423SMike Smith void *arg; 31360ae55423SMike Smith }; 31370ae55423SMike Smith 31380ae55423SMike Smith static TAILQ_HEAD(,acpi_ioctl_hook) acpi_ioctl_hooks; 31390ae55423SMike Smith static int acpi_ioctl_hooks_initted; 31400ae55423SMike Smith 31410ae55423SMike Smith int 3142be2b1797SNate Lawson acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg) 31430ae55423SMike Smith { 31440ae55423SMike Smith struct acpi_ioctl_hook *hp; 31450ae55423SMike Smith 31460ae55423SMike Smith if ((hp = malloc(sizeof(*hp), M_ACPIDEV, M_NOWAIT)) == NULL) 31470ae55423SMike Smith return (ENOMEM); 31480ae55423SMike Smith hp->cmd = cmd; 31490ae55423SMike Smith hp->fn = fn; 31500ae55423SMike Smith hp->arg = arg; 315115e2f34fSNate Lawson 315215e2f34fSNate Lawson ACPI_LOCK(acpi); 31530ae55423SMike Smith if (acpi_ioctl_hooks_initted == 0) { 31540ae55423SMike Smith TAILQ_INIT(&acpi_ioctl_hooks); 31550ae55423SMike Smith acpi_ioctl_hooks_initted = 1; 31560ae55423SMike Smith } 31570ae55423SMike Smith TAILQ_INSERT_TAIL(&acpi_ioctl_hooks, hp, link); 315815e2f34fSNate Lawson ACPI_UNLOCK(acpi); 315915e2f34fSNate Lawson 31600ae55423SMike Smith return (0); 31610ae55423SMike Smith } 31620ae55423SMike Smith 31630ae55423SMike Smith void 3164be2b1797SNate Lawson acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn) 31650ae55423SMike Smith { 31660ae55423SMike Smith struct acpi_ioctl_hook *hp; 31670ae55423SMike Smith 316815e2f34fSNate Lawson ACPI_LOCK(acpi); 31690ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) 317015e2f34fSNate Lawson if (hp->cmd == cmd && hp->fn == fn) 31710ae55423SMike Smith break; 31720ae55423SMike Smith 31730ae55423SMike Smith if (hp != NULL) { 31740ae55423SMike Smith TAILQ_REMOVE(&acpi_ioctl_hooks, hp, link); 31750ae55423SMike Smith free(hp, M_ACPIDEV); 31760ae55423SMike Smith } 317715e2f34fSNate Lawson ACPI_UNLOCK(acpi); 31780ae55423SMike Smith } 31790ae55423SMike Smith 318015e32d5dSMike Smith static int 318100b4e54aSWarner Losh acpiopen(struct cdev *dev, int flag, int fmt, struct thread *td) 318215e32d5dSMike Smith { 318315e32d5dSMike Smith return (0); 318415e32d5dSMike Smith } 318515e32d5dSMike Smith 318615e32d5dSMike Smith static int 318700b4e54aSWarner Losh acpiclose(struct cdev *dev, int flag, int fmt, struct thread *td) 318815e32d5dSMike Smith { 318915e32d5dSMike Smith return (0); 319015e32d5dSMike Smith } 319115e32d5dSMike Smith 319215e32d5dSMike Smith static int 319300b4e54aSWarner Losh acpiioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 319415e32d5dSMike Smith { 319515e32d5dSMike Smith struct acpi_softc *sc; 31960ae55423SMike Smith struct acpi_ioctl_hook *hp; 3197bee4aa4aSNate Lawson int error, state; 319815e32d5dSMike Smith 3199a2e35898SDavid E. O'Brien error = 0; 3200a2e35898SDavid E. O'Brien hp = NULL; 320115e32d5dSMike Smith sc = dev->si_drv1; 320215e32d5dSMike Smith 32030ae55423SMike Smith /* 32040ae55423SMike Smith * Scan the list of registered ioctls, looking for handlers. 32050ae55423SMike Smith */ 320615e2f34fSNate Lawson ACPI_LOCK(acpi); 3207bee4aa4aSNate Lawson if (acpi_ioctl_hooks_initted) 32080ae55423SMike Smith TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) { 3209bee4aa4aSNate Lawson if (hp->cmd == cmd) 3210bee4aa4aSNate Lawson break; 32110ae55423SMike Smith } 321215e2f34fSNate Lawson ACPI_UNLOCK(acpi); 3213bee4aa4aSNate Lawson if (hp) 3214bee4aa4aSNate Lawson return (hp->fn(cmd, addr, hp->arg)); 32150ae55423SMike Smith 32160ae55423SMike Smith /* 3217a89fcf28STakanori Watanabe * Core ioctls are not permitted for non-writable user. 3218a89fcf28STakanori Watanabe * Currently, other ioctls just fetch information. 3219a89fcf28STakanori Watanabe * Not changing system behavior. 3220a89fcf28STakanori Watanabe */ 3221be2b1797SNate Lawson if ((flag & FWRITE) == 0) 3222be2b1797SNate Lawson return (EPERM); 3223a89fcf28STakanori Watanabe 3224be2b1797SNate Lawson /* Core system ioctls. */ 322515e32d5dSMike Smith switch (cmd) { 322600a30448SNate Lawson case ACPIIO_REQSLPSTATE: 322700a30448SNate Lawson state = *(int *)addr; 322800a30448SNate Lawson if (state != ACPI_STATE_S5) 3229a0e73a12SJung-uk Kim return (acpi_ReqSleepState(sc, state)); 3230a0e73a12SJung-uk Kim device_printf(sc->acpi_dev, "power off via acpi ioctl not supported\n"); 3231a0e73a12SJung-uk Kim error = EOPNOTSUPP; 323200a30448SNate Lawson break; 323300a30448SNate Lawson case ACPIIO_ACKSLPSTATE: 323400a30448SNate Lawson error = *(int *)addr; 323500a30448SNate Lawson error = acpi_AckSleepState(sc->acpi_clone, error); 323600a30448SNate Lawson break; 323700a30448SNate Lawson case ACPIIO_SETSLPSTATE: /* DEPRECATED */ 323815e32d5dSMike Smith state = *(int *)addr; 3239a0e73a12SJung-uk Kim if (state < ACPI_STATE_S0 || state > ACPI_S_STATES_MAX) 3240a0e73a12SJung-uk Kim return (EINVAL); 3241a0e73a12SJung-uk Kim if (!acpi_sleep_states[state]) 3242a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3243a0e73a12SJung-uk Kim if (ACPI_FAILURE(acpi_SetSleepState(sc, state))) 3244a0e73a12SJung-uk Kim error = ENXIO; 324515e32d5dSMike Smith break; 324615e32d5dSMike Smith default: 3247bee4aa4aSNate Lawson error = ENXIO; 324815e32d5dSMike Smith break; 324915e32d5dSMike Smith } 3250917d44c8SMitsuru IWASAKI 325115e32d5dSMike Smith return (error); 325215e32d5dSMike Smith } 325315e32d5dSMike Smith 32541d073b1dSJohn Baldwin static int 3255a0e73a12SJung-uk Kim acpi_sname2sstate(const char *sname) 3256a0e73a12SJung-uk Kim { 3257a0e73a12SJung-uk Kim int sstate; 3258a0e73a12SJung-uk Kim 3259a0e73a12SJung-uk Kim if (toupper(sname[0]) == 'S') { 3260a0e73a12SJung-uk Kim sstate = sname[1] - '0'; 3261a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5 && 3262a0e73a12SJung-uk Kim sname[2] == '\0') 3263a0e73a12SJung-uk Kim return (sstate); 3264a0e73a12SJung-uk Kim } else if (strcasecmp(sname, "NONE") == 0) 3265a0e73a12SJung-uk Kim return (ACPI_STATE_UNKNOWN); 3266a0e73a12SJung-uk Kim return (-1); 3267a0e73a12SJung-uk Kim } 3268a0e73a12SJung-uk Kim 3269a0e73a12SJung-uk Kim static const char * 3270a0e73a12SJung-uk Kim acpi_sstate2sname(int sstate) 3271a0e73a12SJung-uk Kim { 3272a0e73a12SJung-uk Kim static const char *snames[] = { "S0", "S1", "S2", "S3", "S4", "S5" }; 3273a0e73a12SJung-uk Kim 3274a0e73a12SJung-uk Kim if (sstate >= ACPI_STATE_S0 && sstate <= ACPI_STATE_S5) 3275a0e73a12SJung-uk Kim return (snames[sstate]); 3276a0e73a12SJung-uk Kim else if (sstate == ACPI_STATE_UNKNOWN) 3277a0e73a12SJung-uk Kim return ("NONE"); 3278a0e73a12SJung-uk Kim return (NULL); 3279a0e73a12SJung-uk Kim } 3280a0e73a12SJung-uk Kim 3281a0e73a12SJung-uk Kim static int 3282d75de536SMitsuru IWASAKI acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 3283d75de536SMitsuru IWASAKI { 3284d75de536SMitsuru IWASAKI int error; 3285bee4aa4aSNate Lawson struct sbuf sb; 3286a0e73a12SJung-uk Kim UINT8 state; 3287d75de536SMitsuru IWASAKI 3288bee4aa4aSNate Lawson sbuf_new(&sb, NULL, 32, SBUF_AUTOEXTEND); 3289a0e73a12SJung-uk Kim for (state = ACPI_STATE_S1; state < ACPI_S_STATE_COUNT; state++) 3290a0e73a12SJung-uk Kim if (acpi_sleep_states[state]) 3291a0e73a12SJung-uk Kim sbuf_printf(&sb, "%s ", acpi_sstate2sname(state)); 3292bee4aa4aSNate Lawson sbuf_trim(&sb); 3293bee4aa4aSNate Lawson sbuf_finish(&sb); 3294bee4aa4aSNate Lawson error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req); 3295bee4aa4aSNate Lawson sbuf_delete(&sb); 3296d75de536SMitsuru IWASAKI return (error); 3297d75de536SMitsuru IWASAKI } 3298d75de536SMitsuru IWASAKI 3299d75de536SMitsuru IWASAKI static int 33001d073b1dSJohn Baldwin acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) 33011d073b1dSJohn Baldwin { 33021d073b1dSJohn Baldwin char sleep_state[10]; 3303a0e73a12SJung-uk Kim int error, new_state, old_state; 33041d073b1dSJohn Baldwin 3305a0e73a12SJung-uk Kim old_state = *(int *)oidp->oid_arg1; 3306a0e73a12SJung-uk Kim strlcpy(sleep_state, acpi_sstate2sname(old_state), sizeof(sleep_state)); 33071d073b1dSJohn Baldwin error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req); 33081d073b1dSJohn Baldwin if (error == 0 && req->newptr != NULL) { 3309a0e73a12SJung-uk Kim new_state = acpi_sname2sstate(sleep_state); 3310a0e73a12SJung-uk Kim if (new_state < ACPI_STATE_S1) 3311a0e73a12SJung-uk Kim return (EINVAL); 331254b43614SJung-uk Kim if (new_state < ACPI_S_STATE_COUNT && !acpi_sleep_states[new_state]) 3313a0e73a12SJung-uk Kim return (EOPNOTSUPP); 3314be2b1797SNate Lawson if (new_state != old_state) 3315a0e73a12SJung-uk Kim *(int *)oidp->oid_arg1 = new_state; 33161d073b1dSJohn Baldwin } 33171d073b1dSJohn Baldwin return (error); 33181d073b1dSJohn Baldwin } 33191d073b1dSJohn Baldwin 33209b937d48SNate Lawson /* Inform devctl(4) when we receive a Notify. */ 33219b937d48SNate Lawson void 33229b937d48SNate Lawson acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify) 33239b937d48SNate Lawson { 33249b937d48SNate Lawson char notify_buf[16]; 33259b937d48SNate Lawson ACPI_BUFFER handle_buf; 33269b937d48SNate Lawson ACPI_STATUS status; 33279b937d48SNate Lawson 33289b937d48SNate Lawson if (subsystem == NULL) 33299b937d48SNate Lawson return; 33309b937d48SNate Lawson 33319b937d48SNate Lawson handle_buf.Pointer = NULL; 33329b937d48SNate Lawson handle_buf.Length = ACPI_ALLOCATE_BUFFER; 33339b937d48SNate Lawson status = AcpiNsHandleToPathname(h, &handle_buf); 33349b937d48SNate Lawson if (ACPI_FAILURE(status)) 33359b937d48SNate Lawson return; 33369b937d48SNate Lawson snprintf(notify_buf, sizeof(notify_buf), "notify=0x%02x", notify); 33379b937d48SNate Lawson devctl_notify("ACPI", subsystem, handle_buf.Pointer, notify_buf); 33389b937d48SNate Lawson AcpiOsFree(handle_buf.Pointer); 33399b937d48SNate Lawson } 33409b937d48SNate Lawson 334115e32d5dSMike Smith #ifdef ACPI_DEBUG 33420ae55423SMike Smith /* 33430ae55423SMike Smith * Support for parsing debug options from the kernel environment. 33440ae55423SMike Smith * 33450ae55423SMike Smith * Bits may be set in the AcpiDbgLayer and AcpiDbgLevel debug registers 33460ae55423SMike Smith * by specifying the names of the bits in the debug.acpi.layer and 33470ae55423SMike Smith * debug.acpi.level environment variables. Bits may be unset by 33480ae55423SMike Smith * prefixing the bit name with !. 33490ae55423SMike Smith */ 335015e32d5dSMike Smith struct debugtag 335115e32d5dSMike Smith { 335215e32d5dSMike Smith char *name; 335315e32d5dSMike Smith UINT32 value; 335415e32d5dSMike Smith }; 335515e32d5dSMike Smith 335615e32d5dSMike Smith static struct debugtag dbg_layer[] = { 3357c5ba0be4SMike Smith {"ACPI_UTILITIES", ACPI_UTILITIES}, 3358c5ba0be4SMike Smith {"ACPI_HARDWARE", ACPI_HARDWARE}, 3359c5ba0be4SMike Smith {"ACPI_EVENTS", ACPI_EVENTS}, 3360c5ba0be4SMike Smith {"ACPI_TABLES", ACPI_TABLES}, 3361c5ba0be4SMike Smith {"ACPI_NAMESPACE", ACPI_NAMESPACE}, 3362c5ba0be4SMike Smith {"ACPI_PARSER", ACPI_PARSER}, 3363c5ba0be4SMike Smith {"ACPI_DISPATCHER", ACPI_DISPATCHER}, 3364c5ba0be4SMike Smith {"ACPI_EXECUTER", ACPI_EXECUTER}, 3365c5ba0be4SMike Smith {"ACPI_RESOURCES", ACPI_RESOURCES}, 3366d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DEBUGGER", ACPI_CA_DEBUGGER}, 33674c1cdee6SMike Smith {"ACPI_OS_SERVICES", ACPI_OS_SERVICES}, 3368d62ab2f4SMitsuru IWASAKI {"ACPI_CA_DISASSEMBLER", ACPI_CA_DISASSEMBLER}, 3369297835bcSNate Lawson {"ACPI_ALL_COMPONENTS", ACPI_ALL_COMPONENTS}, 33704c1cdee6SMike Smith 3371c5ba0be4SMike Smith {"ACPI_AC_ADAPTER", ACPI_AC_ADAPTER}, 3372c5ba0be4SMike Smith {"ACPI_BATTERY", ACPI_BATTERY}, 33733184cf5aSNate Lawson {"ACPI_BUS", ACPI_BUS}, 3374c5ba0be4SMike Smith {"ACPI_BUTTON", ACPI_BUTTON}, 33753184cf5aSNate Lawson {"ACPI_EC", ACPI_EC}, 33763184cf5aSNate Lawson {"ACPI_FAN", ACPI_FAN}, 33773184cf5aSNate Lawson {"ACPI_POWERRES", ACPI_POWERRES}, 33784c1cdee6SMike Smith {"ACPI_PROCESSOR", ACPI_PROCESSOR}, 3379cb9b0d80SMike Smith {"ACPI_THERMAL", ACPI_THERMAL}, 33803184cf5aSNate Lawson {"ACPI_TIMER", ACPI_TIMER}, 3381b53f2771SMike Smith {"ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS}, 338215e32d5dSMike Smith {NULL, 0} 338315e32d5dSMike Smith }; 338415e32d5dSMike Smith 338515e32d5dSMike Smith static struct debugtag dbg_level[] = { 33869501b603SJohn Baldwin {"ACPI_LV_INIT", ACPI_LV_INIT}, 33874c1cdee6SMike Smith {"ACPI_LV_DEBUG_OBJECT", ACPI_LV_DEBUG_OBJECT}, 33889501b603SJohn Baldwin {"ACPI_LV_INFO", ACPI_LV_INFO}, 33894c1cdee6SMike Smith {"ACPI_LV_ALL_EXCEPTIONS", ACPI_LV_ALL_EXCEPTIONS}, 3390d62ab2f4SMitsuru IWASAKI 3391d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 1 [Standard Trace Level] */ 3392297835bcSNate Lawson {"ACPI_LV_INIT_NAMES", ACPI_LV_INIT_NAMES}, 33934c1cdee6SMike Smith {"ACPI_LV_PARSE", ACPI_LV_PARSE}, 33944c1cdee6SMike Smith {"ACPI_LV_LOAD", ACPI_LV_LOAD}, 3395d62ab2f4SMitsuru IWASAKI {"ACPI_LV_DISPATCH", ACPI_LV_DISPATCH}, 33964c1cdee6SMike Smith {"ACPI_LV_EXEC", ACPI_LV_EXEC}, 33974c1cdee6SMike Smith {"ACPI_LV_NAMES", ACPI_LV_NAMES}, 33984c1cdee6SMike Smith {"ACPI_LV_OPREGION", ACPI_LV_OPREGION}, 33994c1cdee6SMike Smith {"ACPI_LV_BFIELD", ACPI_LV_BFIELD}, 34004c1cdee6SMike Smith {"ACPI_LV_TABLES", ACPI_LV_TABLES}, 34014c1cdee6SMike Smith {"ACPI_LV_VALUES", ACPI_LV_VALUES}, 34024c1cdee6SMike Smith {"ACPI_LV_OBJECTS", ACPI_LV_OBJECTS}, 34034c1cdee6SMike Smith {"ACPI_LV_RESOURCES", ACPI_LV_RESOURCES}, 34044c1cdee6SMike Smith {"ACPI_LV_USER_REQUESTS", ACPI_LV_USER_REQUESTS}, 34054c1cdee6SMike Smith {"ACPI_LV_PACKAGE", ACPI_LV_PACKAGE}, 3406d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY1", ACPI_LV_VERBOSITY1}, 3407d62ab2f4SMitsuru IWASAKI 3408d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 2 [Function tracing and memory allocation] */ 3409d62ab2f4SMitsuru IWASAKI {"ACPI_LV_ALLOCATIONS", ACPI_LV_ALLOCATIONS}, 3410d62ab2f4SMitsuru IWASAKI {"ACPI_LV_FUNCTIONS", ACPI_LV_FUNCTIONS}, 3411d62ab2f4SMitsuru IWASAKI {"ACPI_LV_OPTIMIZATIONS", ACPI_LV_OPTIMIZATIONS}, 3412d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY2", ACPI_LV_VERBOSITY2}, 34134c1cdee6SMike Smith {"ACPI_LV_ALL", ACPI_LV_ALL}, 3414d62ab2f4SMitsuru IWASAKI 3415d62ab2f4SMitsuru IWASAKI /* Trace verbosity level 3 [Threading, I/O, and Interrupts] */ 3416d62ab2f4SMitsuru IWASAKI {"ACPI_LV_MUTEX", ACPI_LV_MUTEX}, 3417d62ab2f4SMitsuru IWASAKI {"ACPI_LV_THREADS", ACPI_LV_THREADS}, 3418d62ab2f4SMitsuru IWASAKI {"ACPI_LV_IO", ACPI_LV_IO}, 3419d62ab2f4SMitsuru IWASAKI {"ACPI_LV_INTERRUPTS", ACPI_LV_INTERRUPTS}, 3420d62ab2f4SMitsuru IWASAKI {"ACPI_LV_VERBOSITY3", ACPI_LV_VERBOSITY3}, 3421d62ab2f4SMitsuru IWASAKI 3422d62ab2f4SMitsuru IWASAKI /* Exceptionally verbose output -- also used in the global "DebugLevel" */ 342398479b04SMitsuru IWASAKI {"ACPI_LV_AML_DISASSEMBLE", ACPI_LV_AML_DISASSEMBLE}, 342498479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE_INFO", ACPI_LV_VERBOSE_INFO}, 342598479b04SMitsuru IWASAKI {"ACPI_LV_FULL_TABLES", ACPI_LV_FULL_TABLES}, 342698479b04SMitsuru IWASAKI {"ACPI_LV_EVENTS", ACPI_LV_EVENTS}, 342798479b04SMitsuru IWASAKI {"ACPI_LV_VERBOSE", ACPI_LV_VERBOSE}, 342815e32d5dSMike Smith {NULL, 0} 342915e32d5dSMike Smith }; 343015e32d5dSMike Smith 343115e32d5dSMike Smith static void 343215e32d5dSMike Smith acpi_parse_debug(char *cp, struct debugtag *tag, UINT32 *flag) 343315e32d5dSMike Smith { 343415e32d5dSMike Smith char *ep; 343515e32d5dSMike Smith int i, l; 34360ae55423SMike Smith int set; 343715e32d5dSMike Smith 343815e32d5dSMike Smith while (*cp) { 343915e32d5dSMike Smith if (isspace(*cp)) { 344015e32d5dSMike Smith cp++; 344115e32d5dSMike Smith continue; 344215e32d5dSMike Smith } 344315e32d5dSMike Smith ep = cp; 344415e32d5dSMike Smith while (*ep && !isspace(*ep)) 344515e32d5dSMike Smith ep++; 34460ae55423SMike Smith if (*cp == '!') { 34470ae55423SMike Smith set = 0; 34480ae55423SMike Smith cp++; 34490ae55423SMike Smith if (cp == ep) 34500ae55423SMike Smith continue; 34510ae55423SMike Smith } else { 34520ae55423SMike Smith set = 1; 34530ae55423SMike Smith } 345415e32d5dSMike Smith l = ep - cp; 345515e32d5dSMike Smith for (i = 0; tag[i].name != NULL; i++) { 345615e32d5dSMike Smith if (!strncmp(cp, tag[i].name, l)) { 3457be2b1797SNate Lawson if (set) 345815e32d5dSMike Smith *flag |= tag[i].value; 3459be2b1797SNate Lawson else 34600ae55423SMike Smith *flag &= ~tag[i].value; 346115e32d5dSMike Smith } 346215e32d5dSMike Smith } 346315e32d5dSMike Smith cp = ep; 346415e32d5dSMike Smith } 346515e32d5dSMike Smith } 346615e32d5dSMike Smith 346715e32d5dSMike Smith static void 34682a4ac806SMike Smith acpi_set_debugging(void *junk) 346915e32d5dSMike Smith { 34707e639165SNate Lawson char *layer, *level; 347115e32d5dSMike Smith 34721d7b121cSNate Lawson if (cold) { 34730ae55423SMike Smith AcpiDbgLayer = 0; 34740ae55423SMike Smith AcpiDbgLevel = 0; 34751d7b121cSNate Lawson } 34761d7b121cSNate Lawson 34777e639165SNate Lawson layer = getenv("debug.acpi.layer"); 34787e639165SNate Lawson level = getenv("debug.acpi.level"); 34797e639165SNate Lawson if (layer == NULL && level == NULL) 34807e639165SNate Lawson return; 34810ae55423SMike Smith 34827e639165SNate Lawson printf("ACPI set debug"); 34837e639165SNate Lawson if (layer != NULL) { 34847e639165SNate Lawson if (strcmp("NONE", layer) != 0) 34857e639165SNate Lawson printf(" layer '%s'", layer); 34867e639165SNate Lawson acpi_parse_debug(layer, &dbg_layer[0], &AcpiDbgLayer); 34877e639165SNate Lawson freeenv(layer); 34881d7b121cSNate Lawson } 34897e639165SNate Lawson if (level != NULL) { 34907e639165SNate Lawson if (strcmp("NONE", level) != 0) 34917e639165SNate Lawson printf(" level '%s'", level); 34927e639165SNate Lawson acpi_parse_debug(level, &dbg_level[0], &AcpiDbgLevel); 34937e639165SNate Lawson freeenv(level); 34947e639165SNate Lawson } 34957e639165SNate Lawson printf("\n"); 349615e32d5dSMike Smith } 3497bee4aa4aSNate Lawson 3498be2b1797SNate Lawson SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging, 3499be2b1797SNate Lawson NULL); 35001d7b121cSNate Lawson 35011d7b121cSNate Lawson static int 35021d7b121cSNate Lawson acpi_debug_sysctl(SYSCTL_HANDLER_ARGS) 35031d7b121cSNate Lawson { 350454f6bca0SNate Lawson int error, *dbg; 35051d7b121cSNate Lawson struct debugtag *tag; 350654f6bca0SNate Lawson struct sbuf sb; 35071d7b121cSNate Lawson 350854f6bca0SNate Lawson if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 350954f6bca0SNate Lawson return (ENOMEM); 35101d7b121cSNate Lawson if (strcmp(oidp->oid_arg1, "debug.acpi.layer") == 0) { 35111d7b121cSNate Lawson tag = &dbg_layer[0]; 35121d7b121cSNate Lawson dbg = &AcpiDbgLayer; 35131d7b121cSNate Lawson } else { 35141d7b121cSNate Lawson tag = &dbg_level[0]; 35151d7b121cSNate Lawson dbg = &AcpiDbgLevel; 35161d7b121cSNate Lawson } 35171d7b121cSNate Lawson 35181d7b121cSNate Lawson /* Get old values if this is a get request. */ 351915e2f34fSNate Lawson ACPI_SERIAL_BEGIN(acpi); 35201d7b121cSNate Lawson if (*dbg == 0) { 352154f6bca0SNate Lawson sbuf_cpy(&sb, "NONE"); 35221d7b121cSNate Lawson } else if (req->newptr == NULL) { 35231d7b121cSNate Lawson for (; tag->name != NULL; tag++) { 352454f6bca0SNate Lawson if ((*dbg & tag->value) == tag->value) 352554f6bca0SNate Lawson sbuf_printf(&sb, "%s ", tag->name); 35261d7b121cSNate Lawson } 35271d7b121cSNate Lawson } 352854f6bca0SNate Lawson sbuf_trim(&sb); 352954f6bca0SNate Lawson sbuf_finish(&sb); 35301d7b121cSNate Lawson 35317e639165SNate Lawson /* Copy out the old values to the user. */ 35327e639165SNate Lawson error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb)); 353354f6bca0SNate Lawson sbuf_delete(&sb); 35341d7b121cSNate Lawson 35351d7b121cSNate Lawson /* If the user is setting a string, parse it. */ 35361d7b121cSNate Lawson if (error == 0 && req->newptr != NULL) { 35371d7b121cSNate Lawson *dbg = 0; 35381d7b121cSNate Lawson setenv((char *)oidp->oid_arg1, (char *)req->newptr); 35391d7b121cSNate Lawson acpi_set_debugging(NULL); 35401d7b121cSNate Lawson } 354115e2f34fSNate Lawson ACPI_SERIAL_END(acpi); 35421d7b121cSNate Lawson 35431d7b121cSNate Lawson return (error); 35441d7b121cSNate Lawson } 3545bee4aa4aSNate Lawson 35461d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW | CTLTYPE_STRING, 35471d7b121cSNate Lawson "debug.acpi.layer", 0, acpi_debug_sysctl, "A", ""); 35481d7b121cSNate Lawson SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING, 35491d7b121cSNate Lawson "debug.acpi.level", 0, acpi_debug_sysctl, "A", ""); 3550bee4aa4aSNate Lawson #endif /* ACPI_DEBUG */ 3551f9390180SMitsuru IWASAKI 3552f9390180SMitsuru IWASAKI static int 3553f9390180SMitsuru IWASAKI acpi_pm_func(u_long cmd, void *arg, ...) 3554f9390180SMitsuru IWASAKI { 3555f9390180SMitsuru IWASAKI int state, acpi_state; 3556f9390180SMitsuru IWASAKI int error; 3557f9390180SMitsuru IWASAKI struct acpi_softc *sc; 3558f9390180SMitsuru IWASAKI va_list ap; 3559f9390180SMitsuru IWASAKI 3560f9390180SMitsuru IWASAKI error = 0; 3561f9390180SMitsuru IWASAKI switch (cmd) { 3562f9390180SMitsuru IWASAKI case POWER_CMD_SUSPEND: 3563f9390180SMitsuru IWASAKI sc = (struct acpi_softc *)arg; 3564f9390180SMitsuru IWASAKI if (sc == NULL) { 3565f9390180SMitsuru IWASAKI error = EINVAL; 3566f9390180SMitsuru IWASAKI goto out; 3567f9390180SMitsuru IWASAKI } 3568f9390180SMitsuru IWASAKI 3569f9390180SMitsuru IWASAKI va_start(ap, arg); 3570f9390180SMitsuru IWASAKI state = va_arg(ap, int); 3571f9390180SMitsuru IWASAKI va_end(ap); 3572f9390180SMitsuru IWASAKI 3573f9390180SMitsuru IWASAKI switch (state) { 3574f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_STANDBY: 3575f9390180SMitsuru IWASAKI acpi_state = sc->acpi_standby_sx; 3576f9390180SMitsuru IWASAKI break; 3577f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_SUSPEND: 3578f9390180SMitsuru IWASAKI acpi_state = sc->acpi_suspend_sx; 3579f9390180SMitsuru IWASAKI break; 3580f9390180SMitsuru IWASAKI case POWER_SLEEP_STATE_HIBERNATE: 3581f9390180SMitsuru IWASAKI acpi_state = ACPI_STATE_S4; 3582f9390180SMitsuru IWASAKI break; 3583f9390180SMitsuru IWASAKI default: 3584f9390180SMitsuru IWASAKI error = EINVAL; 3585f9390180SMitsuru IWASAKI goto out; 3586f9390180SMitsuru IWASAKI } 3587f9390180SMitsuru IWASAKI 358800a30448SNate Lawson if (ACPI_FAILURE(acpi_EnterSleepState(sc, acpi_state))) 358900a30448SNate Lawson error = ENXIO; 3590f9390180SMitsuru IWASAKI break; 3591f9390180SMitsuru IWASAKI default: 3592f9390180SMitsuru IWASAKI error = EINVAL; 3593f9390180SMitsuru IWASAKI goto out; 3594f9390180SMitsuru IWASAKI } 3595f9390180SMitsuru IWASAKI 3596f9390180SMitsuru IWASAKI out: 3597f9390180SMitsuru IWASAKI return (error); 3598f9390180SMitsuru IWASAKI } 3599f9390180SMitsuru IWASAKI 3600f9390180SMitsuru IWASAKI static void 3601f9390180SMitsuru IWASAKI acpi_pm_register(void *arg) 3602f9390180SMitsuru IWASAKI { 3603be2b1797SNate Lawson if (!cold || resource_disabled("acpi", 0)) 36046c407052SMitsuru IWASAKI return; 3605f9390180SMitsuru IWASAKI 3606f9390180SMitsuru IWASAKI power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, NULL); 3607f9390180SMitsuru IWASAKI } 3608f9390180SMitsuru IWASAKI 3609f9390180SMitsuru IWASAKI SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, acpi_pm_register, 0); 3610