Index: stable/6/sys/dev/acpica/acpi.c =================================================================== --- stable/6/sys/dev/acpica/acpi.c (revision 159525) +++ stable/6/sys/dev/acpica/acpi.c (revision 159526) @@ -1,3148 +1,3166 @@ /*- * Copyright (c) 2000 Takanori Watanabe * Copyright (c) 2000 Mitsuru IWASAKI * Copyright (c) 2000, 2001 Michael Smith * Copyright (c) 2000 BSDi * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include -#include #include #include #include #include #include #include #include #include #include #include #include "pci_if.h" #include #include MALLOC_DEFINE(M_ACPIDEV, "acpidev", "ACPI devices"); /* Hooks for the ACPI CA debugging infrastructure */ #define _COMPONENT ACPI_BUS ACPI_MODULE_NAME("ACPI") static d_open_t acpiopen; static d_close_t acpiclose; static d_ioctl_t acpiioctl; static struct cdevsw acpi_cdevsw = { .d_version = D_VERSION, .d_open = acpiopen, .d_close = acpiclose, .d_ioctl = acpiioctl, .d_name = "acpi", }; /* Global mutex for locking access to the ACPI subsystem. */ struct mtx acpi_mutex; /* Bitmap of device quirks. */ int acpi_quirks; static int acpi_modevent(struct module *mod, int event, void *junk); static void acpi_identify(driver_t *driver, device_t parent); static int acpi_probe(device_t dev); static int acpi_attach(device_t dev); static int acpi_suspend(device_t dev); static int acpi_resume(device_t dev); static int acpi_shutdown(device_t dev); static device_t acpi_add_child(device_t bus, int order, const char *name, int unit); static int acpi_print_child(device_t bus, device_t child); static void acpi_probe_nomatch(device_t bus, device_t child); static void acpi_driver_added(device_t dev, driver_t *driver); static int acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result); static int acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value); static struct resource_list *acpi_get_rlist(device_t dev, device_t child); static int acpi_sysres_alloc(device_t dev); static struct resource_list_entry *acpi_sysres_find(device_t dev, int type, u_long addr); static struct resource *acpi_alloc_resource(device_t bus, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags); static int acpi_release_resource(device_t bus, device_t child, int type, int rid, struct resource *r); static void acpi_delete_resource(device_t bus, device_t child, int type, int rid); static uint32_t acpi_isa_get_logicalid(device_t dev); static int acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count); static char *acpi_device_id_probe(device_t bus, device_t dev, char **ids); static ACPI_STATUS acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname, ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret); static int acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate); static ACPI_STATUS acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *context, void **retval); static ACPI_STATUS acpi_device_scan_children(device_t bus, device_t dev, int max_depth, acpi_scan_cb_t user_fn, void *arg); static int acpi_set_powerstate_method(device_t bus, device_t child, int state); static int acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids); static void acpi_probe_children(device_t bus); static int acpi_probe_order(ACPI_HANDLE handle, int *order); static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status); static BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid); static void acpi_shutdown_final(void *arg, int howto); static void acpi_enable_fixed_events(struct acpi_softc *sc); static int acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate); static int acpi_wake_run_prep(ACPI_HANDLE handle, int sstate); static int acpi_wake_prep_walk(int sstate); static int acpi_wake_sysctl_walk(device_t dev); static int acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS); static void acpi_system_eventhandler_sleep(void *arg, int state); static void acpi_system_eventhandler_wakeup(void *arg, int state); static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_pm_func(u_long cmd, void *arg, ...); static int acpi_child_location_str_method(device_t acdev, device_t child, char *buf, size_t buflen); static int acpi_child_pnpinfo_str_method(device_t acdev, device_t child, char *buf, size_t buflen); static device_method_t acpi_methods[] = { /* Device interface */ DEVMETHOD(device_identify, acpi_identify), DEVMETHOD(device_probe, acpi_probe), DEVMETHOD(device_attach, acpi_attach), DEVMETHOD(device_shutdown, acpi_shutdown), DEVMETHOD(device_detach, bus_generic_detach), DEVMETHOD(device_suspend, acpi_suspend), DEVMETHOD(device_resume, acpi_resume), /* Bus interface */ DEVMETHOD(bus_add_child, acpi_add_child), DEVMETHOD(bus_print_child, acpi_print_child), DEVMETHOD(bus_probe_nomatch, acpi_probe_nomatch), DEVMETHOD(bus_driver_added, acpi_driver_added), DEVMETHOD(bus_read_ivar, acpi_read_ivar), DEVMETHOD(bus_write_ivar, acpi_write_ivar), DEVMETHOD(bus_get_resource_list, acpi_get_rlist), DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), DEVMETHOD(bus_alloc_resource, acpi_alloc_resource), DEVMETHOD(bus_release_resource, acpi_release_resource), DEVMETHOD(bus_delete_resource, acpi_delete_resource), DEVMETHOD(bus_child_pnpinfo_str, acpi_child_pnpinfo_str_method), DEVMETHOD(bus_child_location_str, acpi_child_location_str_method), DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), /* ACPI bus */ DEVMETHOD(acpi_id_probe, acpi_device_id_probe), DEVMETHOD(acpi_evaluate_object, acpi_device_eval_obj), DEVMETHOD(acpi_pwr_for_sleep, acpi_device_pwr_for_sleep), DEVMETHOD(acpi_scan_children, acpi_device_scan_children), /* PCI emulation */ DEVMETHOD(pci_set_powerstate, acpi_set_powerstate_method), /* ISA emulation */ DEVMETHOD(isa_pnp_probe, acpi_isa_pnp_probe), {0, 0} }; static driver_t acpi_driver = { "acpi", acpi_methods, sizeof(struct acpi_softc), }; static devclass_t acpi_devclass; DRIVER_MODULE(acpi, nexus, acpi_driver, acpi_devclass, acpi_modevent, 0); MODULE_VERSION(acpi, 1); ACPI_SERIAL_DECL(acpi, "ACPI root bus"); /* Local pools for managing system resources for ACPI child devices. */ static struct rman acpi_rman_io, acpi_rman_mem; #define ACPI_MINIMUM_AWAKETIME 5 static const char* sleep_state_names[] = { "S0", "S1", "S2", "S3", "S4", "S5", "NONE"}; -SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RW, NULL, "ACPI debugging"); +SYSCTL_NODE(_debug, OID_AUTO, acpi, CTLFLAG_RD, NULL, "ACPI debugging"); static char acpi_ca_version[12]; SYSCTL_STRING(_debug_acpi, OID_AUTO, acpi_ca_version, CTLFLAG_RD, acpi_ca_version, 0, "Version of Intel ACPI-CA"); /* * Allow override of whether methods execute in parallel or not. * Enable this for serial behavior, which fixes "AE_ALREADY_EXISTS" * errors for AML that really can't handle parallel method execution. * It is off by default since this breaks recursive methods and * some IBMs use such code. */ static int acpi_serialize_methods; TUNABLE_INT("hw.acpi.serialize_methods", &acpi_serialize_methods); /* Power devices off and on in suspend and resume. XXX Remove once tested. */ static int acpi_do_powerstate = 1; TUNABLE_INT("debug.acpi.do_powerstate", &acpi_do_powerstate); SYSCTL_INT(_debug_acpi, OID_AUTO, do_powerstate, CTLFLAG_RW, &acpi_do_powerstate, 1, "Turn off devices when suspending."); /* Allow users to override quirks. */ TUNABLE_INT("debug.acpi.quirks", &acpi_quirks); /* * ACPI can only be loaded as a module by the loader; activating it after * system bootstrap time is not useful, and can be fatal to the system. * It also cannot be unloaded, since the entire system bus heirarchy hangs * off it. */ static int acpi_modevent(struct module *mod, int event, void *junk) { switch (event) { case MOD_LOAD: if (!cold) { printf("The ACPI driver cannot be loaded after boot.\n"); return (EPERM); } break; case MOD_UNLOAD: if (!cold && power_pm_get_type() == POWER_PM_TYPE_ACPI) return (EBUSY); break; default: break; } return (0); } /* * Perform early initialization. */ ACPI_STATUS acpi_Startup(void) { static int started = 0; int error, val; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* Only run the startup code once. The MADT driver also calls this. */ if (started) return_VALUE (0); started = 1; /* Initialise the ACPI mutex */ mtx_init(&acpi_mutex, "ACPI global lock", NULL, MTX_DEF); /* * Set the globals from our tunables. This is needed because ACPI-CA * uses UINT8 for some values and we have no tunable_byte. */ AcpiGbl_AllMethodsSerialized = acpi_serialize_methods; AcpiGbl_EnableInterpreterSlack = TRUE; /* Start up the ACPI CA subsystem. */ if (ACPI_FAILURE(error = AcpiInitializeSubsystem())) { printf("ACPI: initialisation failed: %s\n", AcpiFormatException(error)); return_VALUE (error); } if (ACPI_FAILURE(error = AcpiLoadTables())) { printf("ACPI: table load failed: %s\n", AcpiFormatException(error)); AcpiTerminate(); return_VALUE (error); } /* Set up any quirks we have for this system. */ if (acpi_quirks == 0) acpi_table_quirks(&acpi_quirks); /* If the user manually set the disabled hint to 0, force-enable ACPI. */ if (resource_int_value("acpi", 0, "disabled", &val) == 0 && val == 0) acpi_quirks &= ~ACPI_Q_BROKEN; if (acpi_quirks & ACPI_Q_BROKEN) { printf("ACPI disabled by blacklist. Contact your BIOS vendor.\n"); AcpiTerminate(); return_VALUE (AE_ERROR); } return_VALUE (AE_OK); } /* * Detect ACPI, perform early initialisation */ static void acpi_identify(driver_t *driver, device_t parent) { device_t child; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); if (!cold) return_VOID; /* Check that we haven't been disabled with a hint. */ if (resource_disabled("acpi", 0)) return_VOID; /* Make sure we're not being doubly invoked. */ if (device_find_child(parent, "acpi", 0) != NULL) return_VOID; /* Initialize ACPI-CA. */ if (ACPI_FAILURE(acpi_Startup())) return_VOID; snprintf(acpi_ca_version, sizeof(acpi_ca_version), "%#x", ACPI_CA_VERSION); /* Attach the actual ACPI device. */ if ((child = BUS_ADD_CHILD(parent, 0, "acpi", 0)) == NULL) { device_printf(parent, "device_identify failed\n"); return_VOID; } } /* * Fetch some descriptive data from ACPI to put in our attach message. */ static int acpi_probe(device_t dev) { ACPI_TABLE_HEADER th; char buf[20]; int error; struct sbuf sb; ACPI_STATUS status; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); if (power_pm_get_type() != POWER_PM_TYPE_NONE && power_pm_get_type() != POWER_PM_TYPE_ACPI) { device_printf(dev, "probe failed, other PM system enabled.\n"); return_VALUE (ENXIO); } if (ACPI_FAILURE(status = AcpiGetTableHeader(ACPI_TABLE_XSDT, 1, &th))) { device_printf(dev, "couldn't get XSDT header: %s\n", AcpiFormatException(status)); error = ENXIO; } else { sbuf_new(&sb, buf, sizeof(buf), SBUF_FIXEDLEN); sbuf_bcat(&sb, th.OemId, 6); sbuf_trim(&sb); sbuf_putc(&sb, ' '); sbuf_bcat(&sb, th.OemTableId, 8); sbuf_trim(&sb); sbuf_finish(&sb); device_set_desc_copy(dev, sbuf_data(&sb)); sbuf_delete(&sb); error = 0; } return_VALUE (error); } static int acpi_attach(device_t dev) { struct acpi_softc *sc; ACPI_STATUS status; int error, state; UINT32 flags; UINT8 TypeA, TypeB; char *env; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); sc = device_get_softc(dev); sc->acpi_dev = dev; /* Initialize resource manager. */ acpi_rman_io.rm_type = RMAN_ARRAY; acpi_rman_io.rm_start = 0; acpi_rman_io.rm_end = 0xffff; acpi_rman_io.rm_descr = "I/O ports"; if (rman_init(&acpi_rman_io) != 0) panic("acpi rman_init IO ports failed"); acpi_rman_mem.rm_type = RMAN_ARRAY; acpi_rman_mem.rm_start = 0; acpi_rman_mem.rm_end = ~0ul; acpi_rman_mem.rm_descr = "I/O memory addresses"; if (rman_init(&acpi_rman_mem) != 0) panic("acpi rman_init memory failed"); /* Install the default address space handlers. */ error = ENXIO; status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); if (ACPI_FAILURE(status)) { device_printf(dev, "Could not initialise SystemMemory handler: %s\n", AcpiFormatException(status)); goto out; } status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); if (ACPI_FAILURE(status)) { device_printf(dev, "Could not initialise SystemIO handler: %s\n", AcpiFormatException(status)); goto out; } status = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); if (ACPI_FAILURE(status)) { device_printf(dev, "could not initialise PciConfig handler: %s\n", AcpiFormatException(status)); goto out; } /* * Note that some systems (specifically, those with namespace evaluation * issues that require the avoidance of parts of the namespace) must * avoid running _INI and _STA on everything, as well as dodging the final * object init pass. * * For these devices, we set ACPI_NO_DEVICE_INIT and ACPI_NO_OBJECT_INIT). * * XXX We should arrange for the object init pass after we have attached * all our child devices, but on many systems it works here. */ flags = 0; if (testenv("debug.acpi.avoid")) flags = ACPI_NO_DEVICE_INIT | ACPI_NO_OBJECT_INIT; /* Bring the hardware and basic handlers online. */ if (ACPI_FAILURE(status = AcpiEnableSubsystem(flags))) { device_printf(dev, "Could not enable ACPI: %s\n", AcpiFormatException(status)); goto out; } /* * Call the ECDT probe function to provide EC functionality before * the namespace has been evaluated. * * XXX This happens before the sysresource devices have been probed and * attached so its resources come from nexus0. In practice, this isn't * a problem but should be addressed eventually. */ acpi_ec_ecdt_probe(dev); /* Bring device objects and regions online. */ if (ACPI_FAILURE(status = AcpiInitializeObjects(flags))) { device_printf(dev, "Could not initialize ACPI objects: %s\n", AcpiFormatException(status)); goto out; } /* * Setup our sysctl tree. * * XXX: This doesn't check to make sure that none of these fail. */ sysctl_ctx_init(&sc->acpi_sysctl_ctx); sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx, SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, device_get_name(dev), CTLFLAG_RD, 0, ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "supported_sleep_state", CTLTYPE_STRING | CTLFLAG_RD, 0, 0, acpi_supported_sleep_state_sysctl, "A", ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "power_button_state", CTLTYPE_STRING | CTLFLAG_RW, &sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "sleep_button_state", CTLTYPE_STRING | CTLFLAG_RW, &sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A", ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "lid_switch_state", CTLTYPE_STRING | CTLFLAG_RW, &sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A", ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "standby_state", CTLTYPE_STRING | CTLFLAG_RW, &sc->acpi_standby_sx, 0, acpi_sleep_state_sysctl, "A", ""); SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "suspend_state", CTLTYPE_STRING | CTLFLAG_RW, &sc->acpi_suspend_sx, 0, acpi_sleep_state_sysctl, "A", ""); SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), - OID_AUTO, "sleep_delay", CTLFLAG_RD | CTLFLAG_RW, - &sc->acpi_sleep_delay, 0, "sleep delay"); + OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0, + "sleep delay"); SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), - OID_AUTO, "s4bios", CTLFLAG_RD | CTLFLAG_RW, - &sc->acpi_s4bios, 0, "S4BIOS mode"); + OID_AUTO, "s4bios", CTLFLAG_RW, &sc->acpi_s4bios, 0, "S4BIOS mode"); SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), - OID_AUTO, "verbose", CTLFLAG_RD | CTLFLAG_RW, - &sc->acpi_verbose, 0, "verbose mode"); + OID_AUTO, "verbose", CTLFLAG_RW, &sc->acpi_verbose, 0, "verbose mode"); + SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), + OID_AUTO, "disable_on_reboot", CTLFLAG_RW, + &sc->acpi_do_disable, 0, "Disable ACPI when rebooting/halting system"); /* * Default to 1 second before sleeping to give some machines time to * stabilize. */ sc->acpi_sleep_delay = 1; if (bootverbose) sc->acpi_verbose = 1; if ((env = getenv("hw.acpi.verbose")) != NULL) { if (strcmp(env, "0") != 0) sc->acpi_verbose = 1; freeenv(env); } /* Only enable S4BIOS by default if the FACS says it is available. */ if (AcpiGbl_FACS->S4Bios_f != 0) sc->acpi_s4bios = 1; /* * Dispatch the default sleep state to devices. The lid switch is set * to NONE by default to avoid surprising users. */ sc->acpi_power_button_sx = ACPI_STATE_S5; sc->acpi_lid_switch_sx = ACPI_S_STATES_MAX + 1; sc->acpi_standby_sx = ACPI_STATE_S1; sc->acpi_suspend_sx = ACPI_STATE_S3; /* Pick the first valid sleep state for the sleep button default. */ sc->acpi_sleep_button_sx = ACPI_S_STATES_MAX + 1; for (state = ACPI_STATE_S1; state < ACPI_STATE_S5; state++) if (ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB))) { sc->acpi_sleep_button_sx = state; break; } acpi_enable_fixed_events(sc); /* * Scan the namespace and attach/initialise children. */ /* Register our shutdown handler. */ EVENTHANDLER_REGISTER(shutdown_final, acpi_shutdown_final, sc, SHUTDOWN_PRI_LAST); /* * Register our acpi event handlers. * XXX should be configurable eg. via userland policy manager. */ EVENTHANDLER_REGISTER(acpi_sleep_event, acpi_system_eventhandler_sleep, sc, ACPI_EVENT_PRI_LAST); EVENTHANDLER_REGISTER(acpi_wakeup_event, acpi_system_eventhandler_wakeup, sc, ACPI_EVENT_PRI_LAST); /* Flag our initial states. */ sc->acpi_enabled = 1; sc->acpi_sstate = ACPI_STATE_S0; sc->acpi_sleep_disabled = 0; /* Create the control device */ sc->acpi_dev_t = make_dev(&acpi_cdevsw, 0, UID_ROOT, GID_WHEEL, 0644, "acpi"); sc->acpi_dev_t->si_drv1 = sc; if ((error = acpi_machdep_init(dev))) goto out; /* Register ACPI again to pass the correct argument of pm_func. */ power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, sc); if (!acpi_disabled("bus")) acpi_probe_children(dev); error = 0; out: return_VALUE (error); } static int acpi_suspend(device_t dev) { device_t child, *devlist; int error, i, numdevs, pstate; GIANT_REQUIRED; /* First give child devices a chance to suspend. */ error = bus_generic_suspend(dev); if (error) return (error); /* * Now, set them into the appropriate power state, usually D3. If the * device has an _SxD method for the next sleep state, use that power * state instead. */ device_get_children(dev, &devlist, &numdevs); for (i = 0; i < numdevs; i++) { /* If the device is not attached, we've powered it down elsewhere. */ child = devlist[i]; if (!device_is_attached(child)) continue; /* * Default to D3 for all sleep states. The _SxD method is optional * so set the powerstate even if it's absent. */ pstate = PCI_POWERSTATE_D3; error = acpi_device_pwr_for_sleep(device_get_parent(child), child, &pstate); if ((error == 0 || error == ESRCH) && acpi_do_powerstate) pci_set_powerstate(child, pstate); } free(devlist, M_TEMP); error = 0; return (error); } static int acpi_resume(device_t dev) { ACPI_HANDLE handle; int i, numdevs; device_t child, *devlist; GIANT_REQUIRED; /* * Put all devices in D0 before resuming them. Call _S0D on each one * since some systems expect this. */ device_get_children(dev, &devlist, &numdevs); for (i = 0; i < numdevs; i++) { child = devlist[i]; handle = acpi_get_handle(child); if (handle) AcpiEvaluateObject(handle, "_S0D", NULL, NULL); if (device_is_attached(child) && acpi_do_powerstate) pci_set_powerstate(child, PCI_POWERSTATE_D0); } free(devlist, M_TEMP); return (bus_generic_resume(dev)); } static int acpi_shutdown(device_t dev) { GIANT_REQUIRED; /* Allow children to shutdown first. */ bus_generic_shutdown(dev); /* * Enable any GPEs that are able to power-on the system (i.e., RTC). * Also, disable any that are not valid for this state (most). */ acpi_wake_prep_walk(ACPI_STATE_S5); return (0); } /* * Handle a new device being added */ static device_t acpi_add_child(device_t bus, int order, const char *name, int unit) { struct acpi_device *ad; device_t child; if ((ad = malloc(sizeof(*ad), M_ACPIDEV, M_NOWAIT | M_ZERO)) == NULL) return (NULL); resource_list_init(&ad->ad_rl); child = device_add_child_ordered(bus, order, name, unit); if (child != NULL) device_set_ivars(child, ad); else free(ad, M_ACPIDEV); return (child); } static int acpi_print_child(device_t bus, device_t child) { struct acpi_device *adev = device_get_ivars(child); struct resource_list *rl = &adev->ad_rl; int retval = 0; retval += bus_print_child_header(bus, child); retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#lx"); retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#lx"); retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); retval += resource_list_print_type(rl, "drq", SYS_RES_DRQ, "%ld"); if (device_get_flags(child)) retval += printf(" flags %#x", device_get_flags(child)); retval += bus_print_child_footer(bus, child); return (retval); } /* * If this device is an ACPI child but no one claimed it, attempt * to power it off. We'll power it back up when a driver is added. * * XXX Disabled for now since many necessary devices (like fdc and * ATA) don't claim the devices we created for them but still expect * them to be powered up. */ static void acpi_probe_nomatch(device_t bus, device_t child) { /* pci_set_powerstate(child, PCI_POWERSTATE_D3); */ } /* * If a new driver has a chance to probe a child, first power it up. * * XXX Disabled for now (see acpi_probe_nomatch for details). */ static void acpi_driver_added(device_t dev, driver_t *driver) { device_t child, *devlist; int i, numdevs; DEVICE_IDENTIFY(driver, dev); device_get_children(dev, &devlist, &numdevs); for (i = 0; i < numdevs; i++) { child = devlist[i]; if (device_get_state(child) == DS_NOTPRESENT) { /* pci_set_powerstate(child, PCI_POWERSTATE_D0); */ if (device_probe_and_attach(child) != 0) ; /* pci_set_powerstate(child, PCI_POWERSTATE_D3); */ } } free(devlist, M_TEMP); } /* Location hint for devctl(8) */ static int acpi_child_location_str_method(device_t cbdev, device_t child, char *buf, size_t buflen) { struct acpi_device *dinfo = device_get_ivars(child); if (dinfo->ad_handle) snprintf(buf, buflen, "handle=%s", acpi_name(dinfo->ad_handle)); else snprintf(buf, buflen, "unknown"); return (0); } /* PnP information for devctl(8) */ static int acpi_child_pnpinfo_str_method(device_t cbdev, device_t child, char *buf, size_t buflen) { ACPI_BUFFER adbuf = {ACPI_ALLOCATE_BUFFER, NULL}; ACPI_DEVICE_INFO *adinfo; struct acpi_device *dinfo = device_get_ivars(child); char *end; int error; error = AcpiGetObjectInfo(dinfo->ad_handle, &adbuf); adinfo = (ACPI_DEVICE_INFO *) adbuf.Pointer; if (error) snprintf(buf, buflen, "unknown"); else snprintf(buf, buflen, "_HID=%s _UID=%lu", (adinfo->Valid & ACPI_VALID_HID) ? adinfo->HardwareId.Value : "none", (adinfo->Valid & ACPI_VALID_UID) ? strtoul(adinfo->UniqueId.Value, &end, 10) : 0); if (adinfo) AcpiOsFree(adinfo); return (0); } /* * Handle per-device ivars */ static int acpi_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) { struct acpi_device *ad; if ((ad = device_get_ivars(child)) == NULL) { printf("device has no ivars\n"); return (ENOENT); } /* ACPI and ISA compatibility ivars */ switch(index) { case ACPI_IVAR_HANDLE: *(ACPI_HANDLE *)result = ad->ad_handle; break; case ACPI_IVAR_MAGIC: *(int *)result = ad->ad_magic; break; case ACPI_IVAR_PRIVATE: *(void **)result = ad->ad_private; break; case ACPI_IVAR_FLAGS: *(int *)result = ad->ad_flags; break; case ISA_IVAR_VENDORID: case ISA_IVAR_SERIAL: case ISA_IVAR_COMPATID: *(int *)result = -1; break; case ISA_IVAR_LOGICALID: *(int *)result = acpi_isa_get_logicalid(child); break; default: return (ENOENT); } return (0); } static int acpi_write_ivar(device_t dev, device_t child, int index, uintptr_t value) { struct acpi_device *ad; if ((ad = device_get_ivars(child)) == NULL) { printf("device has no ivars\n"); return (ENOENT); } switch(index) { case ACPI_IVAR_HANDLE: ad->ad_handle = (ACPI_HANDLE)value; break; case ACPI_IVAR_MAGIC: ad->ad_magic = (int)value; break; case ACPI_IVAR_PRIVATE: ad->ad_private = (void *)value; break; case ACPI_IVAR_FLAGS: ad->ad_flags = (int)value; break; default: panic("bad ivar write request (%d)", index); return (ENOENT); } return (0); } /* * Handle child resource allocation/removal */ static struct resource_list * acpi_get_rlist(device_t dev, device_t child) { struct acpi_device *ad; ad = device_get_ivars(child); return (&ad->ad_rl); } /* * Pre-allocate/manage all memory and IO resources. Since rman can't handle * duplicates, we merge any in the sysresource attach routine. */ static int acpi_sysres_alloc(device_t dev) { struct resource *res; struct resource_list *rl; struct resource_list_entry *rle; struct rman *rm; char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; device_t *children; int child_count, i; /* * Probe/attach any sysresource devices. This would be unnecessary if we * had multi-pass probe/attach. */ if (device_get_children(dev, &children, &child_count) != 0) return (ENXIO); for (i = 0; i < child_count; i++) { if (ACPI_ID_PROBE(dev, children[i], sysres_ids) != NULL) device_probe_and_attach(children[i]); } free(children, M_TEMP); rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); STAILQ_FOREACH(rle, rl, link) { if (rle->res != NULL) { device_printf(dev, "duplicate resource for %lx\n", rle->start); continue; } /* Only memory and IO resources are valid here. */ switch (rle->type) { case SYS_RES_IOPORT: rm = &acpi_rman_io; break; case SYS_RES_MEMORY: rm = &acpi_rman_mem; break; default: continue; } /* Pre-allocate resource and add to our rman pool. */ res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, rle->type, &rle->rid, rle->start, rle->start + rle->count - 1, rle->count, 0); if (res != NULL) { rman_manage_region(rm, rman_get_start(res), rman_get_end(res)); rle->res = res; } else device_printf(dev, "reservation of %lx, %lx (%d) failed\n", rle->start, rle->count, rle->type); } return (0); } /* Find if we manage a given resource. */ static struct resource_list_entry * acpi_sysres_find(device_t dev, int type, u_long addr) { struct resource_list *rl; struct resource_list_entry *rle; ACPI_SERIAL_ASSERT(acpi); /* We only consider IO and memory resources for our pool. */ rle = NULL; if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY) goto out; rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); STAILQ_FOREACH(rle, rl, link) { if (type == rle->type && addr >= rle->start && addr < rle->start + rle->count) break; } out: return (rle); } static struct resource * acpi_alloc_resource(device_t bus, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags) { ACPI_RESOURCE ares; struct acpi_device *ad = device_get_ivars(child); struct resource_list *rl = &ad->ad_rl; struct resource_list_entry *rle; struct resource *res; struct rman *rm; res = NULL; ACPI_SERIAL_BEGIN(acpi); /* * If this is an allocation of the "default" range for a given RID, and * we know what the resources for this device are (i.e., they're on the * child's resource list), use those start/end values. */ if (bus == device_get_parent(child) && start == 0UL && end == ~0UL) { rle = resource_list_find(rl, type, *rid); if (rle == NULL) goto out; start = rle->start; end = rle->end; count = rle->count; } /* If we don't manage this address, pass the request up to the parent. */ rle = acpi_sysres_find(bus, type, start); if (rle == NULL) { res = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid, start, end, count, flags); } else { /* We only handle memory and IO resources through rman. */ switch (type) { case SYS_RES_IOPORT: rm = &acpi_rman_io; break; case SYS_RES_MEMORY: rm = &acpi_rman_mem; break; default: panic("acpi_alloc_resource: invalid res type %d", type); } /* If we do know it, allocate it from the local pool. */ res = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, child); if (res == NULL) goto out; /* Copy the bus tag and handle from the pre-allocated resource. */ + rman_set_rid(res, *rid); rman_set_bustag(res, rman_get_bustag(rle->res)); rman_set_bushandle(res, rman_get_start(res)); /* If requested, activate the resource using the parent's method. */ if (flags & RF_ACTIVE) if (bus_activate_resource(child, type, *rid, res) != 0) { rman_release_resource(res); res = NULL; goto out; } } if (res != NULL && device_get_parent(child) == bus) switch (type) { case SYS_RES_IRQ: /* * Since bus_config_intr() takes immediate effect, we cannot * configure the interrupt associated with a device when we * parse the resources but have to defer it until a driver * actually allocates the interrupt via bus_alloc_resource(). * * XXX: Should we handle the lookup failing? */ if (ACPI_SUCCESS(acpi_lookup_irq_resource(child, *rid, res, &ares))) acpi_config_intr(child, &ares); break; } out: ACPI_SERIAL_END(acpi); return (res); } static int acpi_release_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { int ret; ACPI_SERIAL_BEGIN(acpi); /* * If we know about this address, deactivate it and release it to the * local pool. If we don't, pass this request up to the parent. */ if (acpi_sysres_find(bus, type, rman_get_start(r)) == NULL) { if (rman_get_flags(r) & RF_ACTIVE) { ret = bus_deactivate_resource(child, type, rid, r); if (ret != 0) goto out; } ret = rman_release_resource(r); } else ret = BUS_RELEASE_RESOURCE(device_get_parent(bus), child, type, rid, r); out: ACPI_SERIAL_END(acpi); return (ret); } static void acpi_delete_resource(device_t bus, device_t child, int type, int rid) { struct resource_list *rl; rl = acpi_get_rlist(bus, child); resource_list_delete(rl, type, rid); } /* Allocate an IO port or memory resource, given its GAS. */ int acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas, struct resource **res) { int error, res_type; error = ENOMEM; if (type == NULL || rid == NULL || gas == NULL || res == NULL) return (EINVAL); /* We only support memory and IO spaces. */ switch (gas->AddressSpaceId) { case ACPI_ADR_SPACE_SYSTEM_MEMORY: res_type = SYS_RES_MEMORY; break; case ACPI_ADR_SPACE_SYSTEM_IO: res_type = SYS_RES_IOPORT; break; default: return (EOPNOTSUPP); } /* * If the register width is less than 8, assume the BIOS author means * it is a bit field and just allocate a byte. */ if (gas->RegisterBitWidth && gas->RegisterBitWidth < 8) gas->RegisterBitWidth = 8; /* Validate the address after we're sure we support the space. */ if (!ACPI_VALID_ADDRESS(gas->Address) || gas->RegisterBitWidth == 0) return (EINVAL); bus_set_resource(dev, res_type, *rid, gas->Address, gas->RegisterBitWidth / 8); *res = bus_alloc_resource_any(dev, res_type, rid, RF_ACTIVE); if (*res != NULL) { *type = res_type; error = 0; } else bus_delete_resource(dev, res_type, *rid); return (error); } /* Probe _HID and _CID for compatible ISA PNP ids. */ static uint32_t acpi_isa_get_logicalid(device_t dev) { ACPI_DEVICE_INFO *devinfo; ACPI_BUFFER buf; ACPI_HANDLE h; ACPI_STATUS error; u_int32_t pnpid; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); pnpid = 0; buf.Pointer = NULL; buf.Length = ACPI_ALLOCATE_BUFFER; /* Fetch and validate the HID. */ if ((h = acpi_get_handle(dev)) == NULL) goto out; error = AcpiGetObjectInfo(h, &buf); if (ACPI_FAILURE(error)) goto out; devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; if ((devinfo->Valid & ACPI_VALID_HID) != 0) pnpid = PNP_EISAID(devinfo->HardwareId.Value); out: if (buf.Pointer != NULL) AcpiOsFree(buf.Pointer); return_VALUE (pnpid); } static int acpi_isa_get_compatid(device_t dev, uint32_t *cids, int count) { ACPI_DEVICE_INFO *devinfo; ACPI_BUFFER buf; ACPI_HANDLE h; ACPI_STATUS error; uint32_t *pnpid; int valid, i; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); pnpid = cids; valid = 0; buf.Pointer = NULL; buf.Length = ACPI_ALLOCATE_BUFFER; /* Fetch and validate the CID */ if ((h = acpi_get_handle(dev)) == NULL) goto out; error = AcpiGetObjectInfo(h, &buf); if (ACPI_FAILURE(error)) goto out; devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; if ((devinfo->Valid & ACPI_VALID_CID) == 0) goto out; if (devinfo->CompatibilityId.Count < count) count = devinfo->CompatibilityId.Count; for (i = 0; i < count; i++) { if (strncmp(devinfo->CompatibilityId.Id[i].Value, "PNP", 3) != 0) continue; *pnpid++ = PNP_EISAID(devinfo->CompatibilityId.Id[i].Value); valid++; } out: if (buf.Pointer != NULL) AcpiOsFree(buf.Pointer); return_VALUE (valid); } static char * acpi_device_id_probe(device_t bus, device_t dev, char **ids) { ACPI_HANDLE h; int i; h = acpi_get_handle(dev); if (ids == NULL || h == NULL || acpi_get_type(dev) != ACPI_TYPE_DEVICE) return (NULL); /* Try to match one of the array of IDs with a HID or CID. */ for (i = 0; ids[i] != NULL; i++) { if (acpi_MatchHid(h, ids[i])) return (ids[i]); } return (NULL); } static ACPI_STATUS acpi_device_eval_obj(device_t bus, device_t dev, ACPI_STRING pathname, ACPI_OBJECT_LIST *parameters, ACPI_BUFFER *ret) { ACPI_HANDLE h; if (dev == NULL) h = ACPI_ROOT_OBJECT; else if ((h = acpi_get_handle(dev)) == NULL) return (AE_BAD_PARAMETER); return (AcpiEvaluateObject(h, pathname, parameters, ret)); } static int acpi_device_pwr_for_sleep(device_t bus, device_t dev, int *dstate) { struct acpi_softc *sc; ACPI_HANDLE handle; ACPI_STATUS status; char sxd[8]; int error; sc = device_get_softc(bus); handle = acpi_get_handle(dev); /* * XXX If we find these devices, don't try to power them down. * The serial and IRDA ports on my T23 hang the system when * set to D3 and it appears that such legacy devices may * need special handling in their drivers. */ if (handle == NULL || acpi_MatchHid(handle, "PNP0500") || acpi_MatchHid(handle, "PNP0501") || acpi_MatchHid(handle, "PNP0502") || acpi_MatchHid(handle, "PNP0510") || acpi_MatchHid(handle, "PNP0511")) return (ENXIO); /* * Override next state with the value from _SxD, if present. If no * dstate argument was provided, don't fetch the return value. */ snprintf(sxd, sizeof(sxd), "_S%dD", sc->acpi_sstate); if (dstate) status = acpi_GetInteger(handle, sxd, dstate); else status = AcpiEvaluateObject(handle, sxd, NULL, NULL); switch (status) { case AE_OK: error = 0; break; case AE_NOT_FOUND: error = ESRCH; break; default: error = ENXIO; break; } return (error); } /* Callback arg for our implementation of walking the namespace. */ struct acpi_device_scan_ctx { acpi_scan_cb_t user_fn; void *arg; ACPI_HANDLE parent; }; static ACPI_STATUS acpi_device_scan_cb(ACPI_HANDLE h, UINT32 level, void *arg, void **retval) { struct acpi_device_scan_ctx *ctx; device_t dev, old_dev; ACPI_STATUS status; ACPI_OBJECT_TYPE type; /* * Skip this device if we think we'll have trouble with it or it is * the parent where the scan began. */ ctx = (struct acpi_device_scan_ctx *)arg; if (acpi_avoid(h) || h == ctx->parent) return (AE_OK); /* If this is not a valid device type (e.g., a method), skip it. */ if (ACPI_FAILURE(AcpiGetType(h, &type))) return (AE_OK); if (type != ACPI_TYPE_DEVICE && type != ACPI_TYPE_PROCESSOR && type != ACPI_TYPE_THERMAL && type != ACPI_TYPE_POWER) return (AE_OK); /* * Call the user function with the current device. If it is unchanged * afterwards, return. Otherwise, we update the handle to the new dev. */ old_dev = acpi_get_device(h); dev = old_dev; status = ctx->user_fn(h, &dev, level, ctx->arg); if (ACPI_FAILURE(status) || old_dev == dev) return (status); /* Remove the old child and its connection to the handle. */ if (old_dev != NULL) { device_delete_child(device_get_parent(old_dev), old_dev); AcpiDetachData(h, acpi_fake_objhandler); } /* Recreate the handle association if the user created a device. */ if (dev != NULL) AcpiAttachData(h, acpi_fake_objhandler, dev); return (AE_OK); } static ACPI_STATUS acpi_device_scan_children(device_t bus, device_t dev, int max_depth, acpi_scan_cb_t user_fn, void *arg) { ACPI_HANDLE h; struct acpi_device_scan_ctx ctx; if (acpi_disabled("children")) return (AE_OK); if (dev == NULL) h = ACPI_ROOT_OBJECT; else if ((h = acpi_get_handle(dev)) == NULL) return (AE_BAD_PARAMETER); ctx.user_fn = user_fn; ctx.arg = arg; ctx.parent = h; return (AcpiWalkNamespace(ACPI_TYPE_ANY, h, max_depth, acpi_device_scan_cb, &ctx, NULL)); } /* * Even though ACPI devices are not PCI, we use the PCI approach for setting * device power states since it's close enough to ACPI. */ static int acpi_set_powerstate_method(device_t bus, device_t child, int state) { ACPI_HANDLE h; ACPI_STATUS status; int error; error = 0; h = acpi_get_handle(child); if (state < ACPI_STATE_D0 || state > ACPI_STATE_D3) return (EINVAL); if (h == NULL) return (0); /* Ignore errors if the power methods aren't present. */ status = acpi_pwr_switch_consumer(h, state); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND && status != AE_BAD_PARAMETER) device_printf(bus, "failed to set ACPI power state D%d on %s: %s\n", state, acpi_name(h), AcpiFormatException(status)); return (error); } static int acpi_isa_pnp_probe(device_t bus, device_t child, struct isa_pnp_id *ids) { int result, cid_count, i; uint32_t lid, cids[8]; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* * ISA-style drivers attached to ACPI may persist and * probe manually if we return ENOENT. We never want * that to happen, so don't ever return it. */ result = ENXIO; /* Scan the supplied IDs for a match */ lid = acpi_isa_get_logicalid(child); cid_count = acpi_isa_get_compatid(child, cids, 8); while (ids && ids->ip_id) { if (lid == ids->ip_id) { result = 0; goto out; } for (i = 0; i < cid_count; i++) { if (cids[i] == ids->ip_id) { result = 0; goto out; } } ids++; } out: if (result == 0 && ids->ip_desc) device_set_desc(child, ids->ip_desc); return_VALUE (result); } /* * Scan all of the ACPI namespace and attach child devices. * * We should only expect to find devices in the \_PR, \_TZ, \_SI, and * \_SB scopes, and \_PR and \_TZ became obsolete in the ACPI 2.0 spec. * However, in violation of the spec, some systems place their PCI link * devices in \, so we have to walk the whole namespace. We check the * type of namespace nodes, so this should be ok. */ static void acpi_probe_children(device_t bus) { ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* * Scan the namespace and insert placeholders for all the devices that * we find. We also probe/attach any early devices. * * Note that we use AcpiWalkNamespace rather than AcpiGetDevices because * we want to create nodes for all devices, not just those that are * currently present. (This assumes that we don't want to create/remove * devices as they appear, which might be smarter.) */ ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "namespace scan\n")); AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 100, acpi_probe_child, bus, NULL); /* Pre-allocate resources for our rman from any sysresource devices. */ acpi_sysres_alloc(bus); /* Create any static children by calling device identify methods. */ ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "device identify routines\n")); bus_generic_probe(bus); /* Probe/attach all children, created staticly and from the namespace. */ ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "first bus_generic_attach\n")); bus_generic_attach(bus); /* * Some of these children may have attached others as part of their attach * process (eg. the root PCI bus driver), so rescan. */ ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "second bus_generic_attach\n")); bus_generic_attach(bus); /* Attach wake sysctls. */ acpi_wake_sysctl_walk(bus); ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "done attaching children\n")); return_VOID; } /* * Determine the probe order for a given device and return non-zero if it * should be attached immediately. */ static int acpi_probe_order(ACPI_HANDLE handle, int *order) { /* * 1. I/O port and memory system resource holders * 2. Embedded controllers (to handle early accesses) * 3. PCI Link Devices */ if (acpi_MatchHid(handle, "PNP0C01") || acpi_MatchHid(handle, "PNP0C02")) *order = 1; else if (acpi_MatchHid(handle, "PNP0C09")) *order = 2; else if (acpi_MatchHid(handle, "PNP0C0F")) *order = 3; return (0); } /* * Evaluate a child device and determine whether we might attach a device to * it. */ static ACPI_STATUS acpi_probe_child(ACPI_HANDLE handle, UINT32 level, void *context, void **status) { ACPI_OBJECT_TYPE type; + ACPI_HANDLE h; device_t bus, child; int order; char *handle_str, **search; static char *scopes[] = {"\\_PR_", "\\_TZ_", "\\_SI_", "\\_SB_", NULL}; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* Skip this device if we think we'll have trouble with it. */ if (acpi_avoid(handle)) return_ACPI_STATUS (AE_OK); bus = (device_t)context; if (ACPI_SUCCESS(AcpiGetType(handle, &type))) { switch (type) { case ACPI_TYPE_DEVICE: case ACPI_TYPE_PROCESSOR: case ACPI_TYPE_THERMAL: case ACPI_TYPE_POWER: if (acpi_disabled("children")) break; /* * Since we scan from \, be sure to skip system scope objects. * At least \_SB and \_TZ are detected as devices (ACPI-CA bug?) */ handle_str = acpi_name(handle); for (search = scopes; *search != NULL; search++) { if (strcmp(handle_str, *search) == 0) break; } if (*search != NULL) break; /* * Create a placeholder device for this node. Sort the placeholder * so that the probe/attach passes will run breadth-first. Orders * less than 10 are reserved for special objects (i.e., system * resources). Larger values are used for all other devices. */ ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "scanning '%s'\n", handle_str)); order = (level + 1) * 10; acpi_probe_order(handle, &order); child = BUS_ADD_CHILD(bus, order, NULL, -1); if (child == NULL) break; /* Associate the handle with the device_t and vice versa. */ acpi_set_handle(child, handle); AcpiAttachData(handle, acpi_fake_objhandler, child); /* * Check that the device is present. If it's not present, * leave it disabled (so that we have a device_t attached to * the handle, but we don't probe it). * * XXX PCI link devices sometimes report "present" but not * "functional" (i.e. if disabled). Go ahead and probe them * anyway since we may enable them later. */ - if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child) && - !acpi_MatchHid(handle, "PNP0C0F")) { + if (type == ACPI_TYPE_DEVICE && !acpi_DeviceIsPresent(child)) { + /* Never disable PCI link devices. */ + if (acpi_MatchHid(handle, "PNP0C0F")) + break; + /* + * Docking stations should remain enabled since the system + * may be undocked at boot. + */ + if (ACPI_SUCCESS(AcpiGetHandle(handle, "_DCK", &h))) + break; + device_disable(child); break; } /* * Get the device's resource settings and attach them. * Note that if the device has _PRS but no _CRS, we need * to decide when it's appropriate to try to configure the * device. Ignore the return value here; it's OK for the * device not to have any resources. */ acpi_parse_resources(child, handle, &acpi_res_parse_set, NULL); break; } } return_ACPI_STATUS (AE_OK); } /* * AcpiAttachData() requires an object handler but never uses it. This is a * placeholder object handler so we can store a device_t in an ACPI_HANDLE. */ void acpi_fake_objhandler(ACPI_HANDLE h, UINT32 fn, void *data) { } static void acpi_shutdown_final(void *arg, int howto) { - ACPI_STATUS status; + struct acpi_softc *sc; + ACPI_STATUS status; /* * XXX Shutdown code should only run on the BSP (cpuid 0). * Some chipsets do not power off the system correctly if called from * an AP. */ + sc = arg; if ((howto & RB_POWEROFF) != 0) { status = AcpiEnterSleepStatePrep(ACPI_STATE_S5); if (ACPI_FAILURE(status)) { printf("AcpiEnterSleepStatePrep failed - %s\n", AcpiFormatException(status)); return; } printf("Powering system off using ACPI\n"); ACPI_DISABLE_IRQS(); status = AcpiEnterSleepState(ACPI_STATE_S5); if (ACPI_FAILURE(status)) { printf("ACPI power-off failed - %s\n", AcpiFormatException(status)); } else { DELAY(1000000); printf("ACPI power-off failed - timeout\n"); } - } else if ((howto & RB_AUTOBOOT) != 0 && AcpiGbl_FADT->ResetRegSup) { + } else if ((howto & RB_HALT) == 0 && AcpiGbl_FADT->ResetRegSup) { + /* Reboot using the reset register. */ status = AcpiHwLowLevelWrite( AcpiGbl_FADT->ResetRegister.RegisterBitWidth, AcpiGbl_FADT->ResetValue, &AcpiGbl_FADT->ResetRegister); if (ACPI_FAILURE(status)) { printf("ACPI reset failed - %s\n", AcpiFormatException(status)); } else { DELAY(1000000); printf("ACPI reset failed - timeout\n"); } - } else if (panicstr == NULL) { + } else if (sc->acpi_do_disable && panicstr == NULL) { + /* + * Only disable ACPI if the user requested. On some systems, writing + * the disable value to SMI_CMD hangs the system. + */ printf("Shutting down ACPI\n"); AcpiTerminate(); } } static void acpi_enable_fixed_events(struct acpi_softc *sc) { static int first_time = 1; /* Enable and clear fixed events and install handlers. */ if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON, acpi_event_power_button_sleep, sc); if (first_time) device_printf(sc->acpi_dev, "Power Button (fixed)\n"); } if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); AcpiInstallFixedEventHandler(ACPI_EVENT_SLEEP_BUTTON, acpi_event_sleep_button_sleep, sc); if (first_time) device_printf(sc->acpi_dev, "Sleep Button (fixed)\n"); } first_time = 0; } /* * Returns true if the device is actually present and should * be attached to. This requires the present, enabled, UI-visible * and diagnostics-passed bits to be set. */ BOOLEAN acpi_DeviceIsPresent(device_t dev) { ACPI_DEVICE_INFO *devinfo; ACPI_HANDLE h; ACPI_BUFFER buf; ACPI_STATUS error; int ret; ret = FALSE; if ((h = acpi_get_handle(dev)) == NULL) return (FALSE); buf.Pointer = NULL; buf.Length = ACPI_ALLOCATE_BUFFER; error = AcpiGetObjectInfo(h, &buf); if (ACPI_FAILURE(error)) return (FALSE); devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; /* If no _STA method, must be present */ if ((devinfo->Valid & ACPI_VALID_STA) == 0) ret = TRUE; /* Return true for 'present' and 'functioning' */ if (ACPI_DEVICE_PRESENT(devinfo->CurrentStatus)) ret = TRUE; AcpiOsFree(buf.Pointer); return (ret); } /* * Returns true if the battery is actually present and inserted. */ BOOLEAN acpi_BatteryIsPresent(device_t dev) { ACPI_DEVICE_INFO *devinfo; ACPI_HANDLE h; ACPI_BUFFER buf; ACPI_STATUS error; int ret; ret = FALSE; if ((h = acpi_get_handle(dev)) == NULL) return (FALSE); buf.Pointer = NULL; buf.Length = ACPI_ALLOCATE_BUFFER; error = AcpiGetObjectInfo(h, &buf); if (ACPI_FAILURE(error)) return (FALSE); devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; /* If no _STA method, must be present */ if ((devinfo->Valid & ACPI_VALID_STA) == 0) ret = TRUE; /* Return true for 'present', 'battery present', and 'functioning' */ if (ACPI_BATTERY_PRESENT(devinfo->CurrentStatus)) ret = TRUE; AcpiOsFree(buf.Pointer); return (ret); } /* * Match a HID string against a handle */ static BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid) { ACPI_DEVICE_INFO *devinfo; ACPI_BUFFER buf; ACPI_STATUS error; int ret, i; ret = FALSE; if (hid == NULL || h == NULL) return (ret); buf.Pointer = NULL; buf.Length = ACPI_ALLOCATE_BUFFER; error = AcpiGetObjectInfo(h, &buf); if (ACPI_FAILURE(error)) return (ret); devinfo = (ACPI_DEVICE_INFO *)buf.Pointer; if ((devinfo->Valid & ACPI_VALID_HID) != 0 && strcmp(hid, devinfo->HardwareId.Value) == 0) ret = TRUE; else if ((devinfo->Valid & ACPI_VALID_CID) != 0) { for (i = 0; i < devinfo->CompatibilityId.Count; i++) { if (strcmp(hid, devinfo->CompatibilityId.Id[i].Value) == 0) { ret = TRUE; break; } } } AcpiOsFree(buf.Pointer); return (ret); } /* * Return the handle of a named object within our scope, ie. that of (parent) * or one if its parents. */ ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result) { ACPI_HANDLE r; ACPI_STATUS status; /* Walk back up the tree to the root */ for (;;) { status = AcpiGetHandle(parent, path, &r); if (ACPI_SUCCESS(status)) { *result = r; return (AE_OK); } /* XXX Return error here? */ if (status != AE_NOT_FOUND) return (AE_OK); if (ACPI_FAILURE(AcpiGetParent(parent, &r))) return (AE_NOT_FOUND); parent = r; } } /* Find the difference between two PM tick counts. */ uint32_t acpi_TimerDelta(uint32_t end, uint32_t start) { uint32_t delta; if (end >= start) delta = end - start; else if (AcpiGbl_FADT->TmrValExt == 0) delta = ((0x00FFFFFF - start) + end + 1) & 0x00FFFFFF; else delta = ((0xFFFFFFFF - start) + end + 1); return (delta); } /* * Allocate a buffer with a preset data size. */ ACPI_BUFFER * acpi_AllocBuffer(int size) { ACPI_BUFFER *buf; if ((buf = malloc(size + sizeof(*buf), M_ACPIDEV, M_NOWAIT)) == NULL) return (NULL); buf->Length = size; buf->Pointer = (void *)(buf + 1); return (buf); } ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number) { ACPI_OBJECT arg1; ACPI_OBJECT_LIST args; arg1.Type = ACPI_TYPE_INTEGER; arg1.Integer.Value = number; args.Count = 1; args.Pointer = &arg1; return (AcpiEvaluateObject(handle, path, &args, NULL)); } /* * Evaluate a path that should return an integer. */ ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number) { ACPI_STATUS status; ACPI_BUFFER buf; ACPI_OBJECT param; if (handle == NULL) handle = ACPI_ROOT_OBJECT; /* * Assume that what we've been pointed at is an Integer object, or * a method that will return an Integer. */ buf.Pointer = ¶m; buf.Length = sizeof(param); status = AcpiEvaluateObject(handle, path, NULL, &buf); if (ACPI_SUCCESS(status)) { if (param.Type == ACPI_TYPE_INTEGER) *number = param.Integer.Value; else status = AE_TYPE; } /* * In some applications, a method that's expected to return an Integer * may instead return a Buffer (probably to simplify some internal * arithmetic). We'll try to fetch whatever it is, and if it's a Buffer, * convert it into an Integer as best we can. * * This is a hack. */ if (status == AE_BUFFER_OVERFLOW) { if ((buf.Pointer = AcpiOsAllocate(buf.Length)) == NULL) { status = AE_NO_MEMORY; } else { status = AcpiEvaluateObject(handle, path, NULL, &buf); if (ACPI_SUCCESS(status)) status = acpi_ConvertBufferToInteger(&buf, number); AcpiOsFree(buf.Pointer); } } return (status); } ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number) { ACPI_OBJECT *p; UINT8 *val; int i; p = (ACPI_OBJECT *)bufp->Pointer; if (p->Type == ACPI_TYPE_INTEGER) { *number = p->Integer.Value; return (AE_OK); } if (p->Type != ACPI_TYPE_BUFFER) return (AE_TYPE); if (p->Buffer.Length > sizeof(int)) return (AE_BAD_DATA); *number = 0; val = p->Buffer.Pointer; for (i = 0; i < p->Buffer.Length; i++) *number += val[i] << (i * 8); return (AE_OK); } /* * Iterate over the elements of an a package object, calling the supplied * function for each element. * * XXX possible enhancement might be to abort traversal on error. */ ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *pkg, void (*func)(ACPI_OBJECT *comp, void *arg), void *arg) { ACPI_OBJECT *comp; int i; if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) return (AE_BAD_PARAMETER); /* Iterate over components */ i = 0; comp = pkg->Package.Elements; for (; i < pkg->Package.Count; i++, comp++) func(comp, arg); return (AE_OK); } /* * Find the (index)th resource object in a set. */ ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp) { ACPI_RESOURCE *rp; int i; rp = (ACPI_RESOURCE *)buf->Pointer; i = index; while (i-- > 0) { /* Range check */ if (rp > (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) return (AE_BAD_PARAMETER); /* Check for terminator */ if (rp->Id == ACPI_RSTYPE_END_TAG || rp->Length == 0) return (AE_NOT_FOUND); rp = ACPI_NEXT_RESOURCE(rp); } if (resp != NULL) *resp = rp; return (AE_OK); } /* * Append an ACPI_RESOURCE to an ACPI_BUFFER. * * Given a pointer to an ACPI_RESOURCE structure, expand the ACPI_BUFFER * provided to contain it. If the ACPI_BUFFER is empty, allocate a sensible * backing block. If the ACPI_RESOURCE is NULL, return an empty set of * resources. */ #define ACPI_INITIAL_RESOURCE_BUFFER_SIZE 512 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res) { ACPI_RESOURCE *rp; void *newp; /* Initialise the buffer if necessary. */ if (buf->Pointer == NULL) { buf->Length = ACPI_INITIAL_RESOURCE_BUFFER_SIZE; if ((buf->Pointer = AcpiOsAllocate(buf->Length)) == NULL) return (AE_NO_MEMORY); rp = (ACPI_RESOURCE *)buf->Pointer; rp->Id = ACPI_RSTYPE_END_TAG; rp->Length = 0; } if (res == NULL) return (AE_OK); /* * Scan the current buffer looking for the terminator. * This will either find the terminator or hit the end * of the buffer and return an error. */ rp = (ACPI_RESOURCE *)buf->Pointer; for (;;) { /* Range check, don't go outside the buffer */ if (rp >= (ACPI_RESOURCE *)((u_int8_t *)buf->Pointer + buf->Length)) return (AE_BAD_PARAMETER); if (rp->Id == ACPI_RSTYPE_END_TAG || rp->Length == 0) break; rp = ACPI_NEXT_RESOURCE(rp); } /* * Check the size of the buffer and expand if required. * * Required size is: * size of existing resources before terminator + * size of new resource and header + * size of terminator. * * Note that this loop should really only run once, unless * for some reason we are stuffing a *really* huge resource. */ while ((((u_int8_t *)rp - (u_int8_t *)buf->Pointer) + res->Length + ACPI_RESOURCE_LENGTH_NO_DATA + ACPI_RESOURCE_LENGTH) >= buf->Length) { if ((newp = AcpiOsAllocate(buf->Length * 2)) == NULL) return (AE_NO_MEMORY); bcopy(buf->Pointer, newp, buf->Length); rp = (ACPI_RESOURCE *)((u_int8_t *)newp + ((u_int8_t *)rp - (u_int8_t *)buf->Pointer)); AcpiOsFree(buf->Pointer); buf->Pointer = newp; buf->Length += buf->Length; } /* Insert the new resource. */ bcopy(res, rp, res->Length + ACPI_RESOURCE_LENGTH_NO_DATA); /* And add the terminator. */ rp = ACPI_NEXT_RESOURCE(rp); rp->Id = ACPI_RSTYPE_END_TAG; rp->Length = 0; return (AE_OK); } /* * Set interrupt model. */ ACPI_STATUS acpi_SetIntrModel(int model) { return (acpi_SetInteger(ACPI_ROOT_OBJECT, "_PIC", model)); } static void acpi_sleep_enable(void *arg) { ((struct acpi_softc *)arg)->acpi_sleep_disabled = 0; } enum acpi_sleep_state { ACPI_SS_NONE, ACPI_SS_GPE_SET, ACPI_SS_DEV_SUSPEND, ACPI_SS_SLP_PREP, ACPI_SS_SLEPT, }; /* * Set the system sleep state * * Currently we support S1-S5 but S4 is only S4BIOS */ ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state) { ACPI_STATUS status; UINT8 TypeA; UINT8 TypeB; enum acpi_sleep_state slp_state; ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); status = AE_OK; ACPI_LOCK(acpi); if (sc->acpi_sleep_disabled) { if (sc->acpi_sstate != ACPI_STATE_S0) status = AE_ERROR; ACPI_UNLOCK(acpi); printf("acpi: suspend request ignored (not ready yet)\n"); return (status); } sc->acpi_sleep_disabled = 1; ACPI_UNLOCK(acpi); /* * Be sure to hold Giant across DEVICE_SUSPEND/RESUME since non-MPSAFE * drivers need this. */ mtx_lock(&Giant); slp_state = ACPI_SS_NONE; switch (state) { case ACPI_STATE_S1: case ACPI_STATE_S2: case ACPI_STATE_S3: case ACPI_STATE_S4: status = AcpiGetSleepTypeData(state, &TypeA, &TypeB); if (status == AE_NOT_FOUND) { device_printf(sc->acpi_dev, "Sleep state S%d not supported by BIOS\n", state); break; } else if (ACPI_FAILURE(status)) { device_printf(sc->acpi_dev, "AcpiGetSleepTypeData failed - %s\n", AcpiFormatException(status)); break; } sc->acpi_sstate = state; /* Enable any GPEs as appropriate and requested by the user. */ acpi_wake_prep_walk(state); slp_state = ACPI_SS_GPE_SET; /* * Inform all devices that we are going to sleep. If at least one * device fails, DEVICE_SUSPEND() automatically resumes the tree. * * XXX Note that a better two-pass approach with a 'veto' pass * followed by a "real thing" pass would be better, but the current * bus interface does not provide for this. */ if (DEVICE_SUSPEND(root_bus) != 0) { device_printf(sc->acpi_dev, "device_suspend failed\n"); break; } slp_state = ACPI_SS_DEV_SUSPEND; status = AcpiEnterSleepStatePrep(state); if (ACPI_FAILURE(status)) { device_printf(sc->acpi_dev, "AcpiEnterSleepStatePrep failed - %s\n", AcpiFormatException(status)); break; } slp_state = ACPI_SS_SLP_PREP; if (sc->acpi_sleep_delay > 0) DELAY(sc->acpi_sleep_delay * 1000000); if (state != ACPI_STATE_S1) { acpi_sleep_machdep(sc, state); /* Re-enable ACPI hardware on wakeup from sleep state 4. */ if (state == ACPI_STATE_S4) AcpiEnable(); } else { ACPI_DISABLE_IRQS(); status = AcpiEnterSleepState(state); if (ACPI_FAILURE(status)) { device_printf(sc->acpi_dev, "AcpiEnterSleepState failed - %s\n", AcpiFormatException(status)); break; } } slp_state = ACPI_SS_SLEPT; break; case ACPI_STATE_S5: /* * Shut down cleanly and power off. This will call us back through the * shutdown handlers. */ shutdown_nice(RB_POWEROFF); break; case ACPI_STATE_S0: default: status = AE_BAD_PARAMETER; break; } /* * Back out state according to how far along we got in the suspend * process. This handles both the error and success cases. */ if (slp_state >= ACPI_SS_GPE_SET) { acpi_wake_prep_walk(state); sc->acpi_sstate = ACPI_STATE_S0; } if (slp_state >= ACPI_SS_SLP_PREP) AcpiLeaveSleepState(state); if (slp_state >= ACPI_SS_DEV_SUSPEND) DEVICE_RESUME(root_bus); if (slp_state >= ACPI_SS_SLEPT) acpi_enable_fixed_events(sc); /* Allow another sleep request after a while. */ if (state != ACPI_STATE_S5) timeout(acpi_sleep_enable, (caddr_t)sc, hz * ACPI_MINIMUM_AWAKETIME); mtx_unlock(&Giant); return_ACPI_STATUS (status); } /* Initialize a device's wake GPE. */ int acpi_wake_init(device_t dev, int type) { struct acpi_prw_data prw; /* Evaluate _PRW to find the GPE. */ if (acpi_parse_prw(acpi_get_handle(dev), &prw) != 0) return (ENXIO); /* Set the requested type for the GPE (runtime, wake, or both). */ if (ACPI_FAILURE(AcpiSetGpeType(prw.gpe_handle, prw.gpe_bit, type))) { device_printf(dev, "set GPE type failed\n"); return (ENXIO); } return (0); } /* Enable or disable the device's wake GPE. */ int acpi_wake_set_enable(device_t dev, int enable) { struct acpi_prw_data prw; ACPI_HANDLE handle; ACPI_STATUS status; int flags; /* Make sure the device supports waking the system and get the GPE. */ handle = acpi_get_handle(dev); if (acpi_parse_prw(handle, &prw) != 0) return (ENXIO); flags = acpi_get_flags(dev); if (enable) { status = AcpiEnableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); if (ACPI_FAILURE(status)) { device_printf(dev, "enable wake failed\n"); return (ENXIO); } acpi_set_flags(dev, flags | ACPI_FLAG_WAKE_ENABLED); } else { status = AcpiDisableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); if (ACPI_FAILURE(status)) { device_printf(dev, "disable wake failed\n"); return (ENXIO); } acpi_set_flags(dev, flags & ~ACPI_FLAG_WAKE_ENABLED); } return (0); } static int acpi_wake_sleep_prep(ACPI_HANDLE handle, int sstate) { struct acpi_prw_data prw; device_t dev; /* Check that this is a wake-capable device and get its GPE. */ if (acpi_parse_prw(handle, &prw) != 0) return (ENXIO); dev = acpi_get_device(handle); /* * The destination sleep state must be less than (i.e., higher power) * or equal to the value specified by _PRW. If this GPE cannot be * enabled for the next sleep state, then disable it. If it can and * the user requested it be enabled, turn on any required power resources * and set _PSW. */ if (sstate > prw.lowest_wake) { AcpiDisableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); if (bootverbose) device_printf(dev, "wake_prep disabled wake for %s (S%d)\n", acpi_name(handle), sstate); } else if (dev && (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) != 0) { acpi_pwr_wake_enable(handle, 1); acpi_SetInteger(handle, "_PSW", 1); if (bootverbose) device_printf(dev, "wake_prep enabled for %s (S%d)\n", acpi_name(handle), sstate); } return (0); } static int acpi_wake_run_prep(ACPI_HANDLE handle, int sstate) { struct acpi_prw_data prw; device_t dev; /* * Check that this is a wake-capable device and get its GPE. Return * now if the user didn't enable this device for wake. */ if (acpi_parse_prw(handle, &prw) != 0) return (ENXIO); dev = acpi_get_device(handle); if (dev == NULL || (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) == 0) return (0); /* * If this GPE couldn't be enabled for the previous sleep state, it was * disabled before going to sleep so re-enable it. If it was enabled, * clear _PSW and turn off any power resources it used. */ if (sstate > prw.lowest_wake) { AcpiEnableGpe(prw.gpe_handle, prw.gpe_bit, ACPI_NOT_ISR); if (bootverbose) device_printf(dev, "run_prep re-enabled %s\n", acpi_name(handle)); } else { acpi_SetInteger(handle, "_PSW", 0); acpi_pwr_wake_enable(handle, 0); if (bootverbose) device_printf(dev, "run_prep cleaned up for %s\n", acpi_name(handle)); } return (0); } static ACPI_STATUS acpi_wake_prep(ACPI_HANDLE handle, UINT32 level, void *context, void **status) { int sstate; /* If suspending, run the sleep prep function, otherwise wake. */ sstate = *(int *)context; if (AcpiGbl_SystemAwakeAndRunning) acpi_wake_sleep_prep(handle, sstate); else acpi_wake_run_prep(handle, sstate); return (AE_OK); } /* Walk the tree rooted at acpi0 to prep devices for suspend/resume. */ static int acpi_wake_prep_walk(int sstate) { ACPI_HANDLE sb_handle; if (ACPI_SUCCESS(AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &sb_handle))) AcpiWalkNamespace(ACPI_TYPE_DEVICE, sb_handle, 100, acpi_wake_prep, &sstate, NULL); return (0); } /* Walk the tree rooted at acpi0 to attach per-device wake sysctls. */ static int acpi_wake_sysctl_walk(device_t dev) { int error, i, numdevs; device_t *devlist; device_t child; ACPI_STATUS status; error = device_get_children(dev, &devlist, &numdevs); if (error != 0 || numdevs == 0) { if (numdevs == 0) free(devlist, M_TEMP); return (error); } for (i = 0; i < numdevs; i++) { child = devlist[i]; acpi_wake_sysctl_walk(child); if (!device_is_attached(child)) continue; status = AcpiEvaluateObject(acpi_get_handle(child), "_PRW", NULL, NULL); if (ACPI_SUCCESS(status)) { SYSCTL_ADD_PROC(device_get_sysctl_ctx(child), SYSCTL_CHILDREN(device_get_sysctl_tree(child)), OID_AUTO, "wake", CTLTYPE_INT | CTLFLAG_RW, child, 0, acpi_wake_set_sysctl, "I", "Device set to wake the system"); } } free(devlist, M_TEMP); return (0); } /* Enable or disable wake from userland. */ static int acpi_wake_set_sysctl(SYSCTL_HANDLER_ARGS) { int enable, error; device_t dev; dev = (device_t)arg1; enable = (acpi_get_flags(dev) & ACPI_FLAG_WAKE_ENABLED) ? 1 : 0; error = sysctl_handle_int(oidp, &enable, 0, req); if (error != 0 || req->newptr == NULL) return (error); if (enable != 0 && enable != 1) return (EINVAL); return (acpi_wake_set_enable(dev, enable)); } /* Parse a device's _PRW into a structure. */ int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw) { ACPI_STATUS status; ACPI_BUFFER prw_buffer; ACPI_OBJECT *res, *res2; int error, i, power_count; if (h == NULL || prw == NULL) return (EINVAL); /* * The _PRW object (7.2.9) is only required for devices that have the * ability to wake the system from a sleeping state. */ error = EINVAL; prw_buffer.Pointer = NULL; prw_buffer.Length = ACPI_ALLOCATE_BUFFER; status = AcpiEvaluateObject(h, "_PRW", NULL, &prw_buffer); if (ACPI_FAILURE(status)) return (ENOENT); res = (ACPI_OBJECT *)prw_buffer.Pointer; if (res == NULL) return (ENOENT); if (!ACPI_PKG_VALID(res, 2)) goto out; /* * Element 1 of the _PRW object: * The lowest power system sleeping state that can be entered while still * providing wake functionality. The sleeping state being entered must * be less than (i.e., higher power) or equal to this value. */ if (acpi_PkgInt32(res, 1, &prw->lowest_wake) != 0) goto out; /* * Element 0 of the _PRW object: */ switch (res->Package.Elements[0].Type) { case ACPI_TYPE_INTEGER: /* * If the data type of this package element is numeric, then this * _PRW package element is the bit index in the GPEx_EN, in the * GPE blocks described in the FADT, of the enable bit that is * enabled for the wake event. */ prw->gpe_handle = NULL; prw->gpe_bit = res->Package.Elements[0].Integer.Value; error = 0; break; case ACPI_TYPE_PACKAGE: /* * If the data type of this package element is a package, then this * _PRW package element is itself a package containing two * elements. The first is an object reference to the GPE Block * device that contains the GPE that will be triggered by the wake * event. The second element is numeric and it contains the bit * index in the GPEx_EN, in the GPE Block referenced by the * first element in the package, of the enable bit that is enabled for * the wake event. * * For example, if this field is a package then it is of the form: * Package() {\_SB.PCI0.ISA.GPE, 2} */ res2 = &res->Package.Elements[0]; if (!ACPI_PKG_VALID(res2, 2)) goto out; prw->gpe_handle = acpi_GetReference(NULL, &res2->Package.Elements[0]); if (prw->gpe_handle == NULL) goto out; if (acpi_PkgInt32(res2, 1, &prw->gpe_bit) != 0) goto out; error = 0; break; default: goto out; } /* Elements 2 to N of the _PRW object are power resources. */ power_count = res->Package.Count - 2; if (power_count > ACPI_PRW_MAX_POWERRES) { printf("ACPI device %s has too many power resources\n", acpi_name(h)); power_count = 0; } prw->power_res_count = power_count; for (i = 0; i < power_count; i++) prw->power_res[i] = res->Package.Elements[i]; out: if (prw_buffer.Pointer != NULL) AcpiOsFree(prw_buffer.Pointer); return (error); } /* * ACPI Event Handlers */ /* System Event Handlers (registered by EVENTHANDLER_REGISTER) */ static void acpi_system_eventhandler_sleep(void *arg, int state) { ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); if (state >= ACPI_STATE_S0 && state <= ACPI_S_STATES_MAX) acpi_SetSleepState((struct acpi_softc *)arg, state); return_VOID; } static void acpi_system_eventhandler_wakeup(void *arg, int state) { ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, state); /* Currently, nothing to do for wakeup. */ return_VOID; } /* * ACPICA Event Handlers (FixedEvent, also called from button notify handler) */ UINT32 acpi_event_power_button_sleep(void *context) { struct acpi_softc *sc = (struct acpi_softc *)context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); EVENTHANDLER_INVOKE(acpi_sleep_event, sc->acpi_power_button_sx); return_VALUE (ACPI_INTERRUPT_HANDLED); } UINT32 acpi_event_power_button_wake(void *context) { struct acpi_softc *sc = (struct acpi_softc *)context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); EVENTHANDLER_INVOKE(acpi_wakeup_event, sc->acpi_power_button_sx); return_VALUE (ACPI_INTERRUPT_HANDLED); } UINT32 acpi_event_sleep_button_sleep(void *context) { struct acpi_softc *sc = (struct acpi_softc *)context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); EVENTHANDLER_INVOKE(acpi_sleep_event, sc->acpi_sleep_button_sx); return_VALUE (ACPI_INTERRUPT_HANDLED); } UINT32 acpi_event_sleep_button_wake(void *context) { struct acpi_softc *sc = (struct acpi_softc *)context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); EVENTHANDLER_INVOKE(acpi_wakeup_event, sc->acpi_sleep_button_sx); return_VALUE (ACPI_INTERRUPT_HANDLED); } /* * XXX This static buffer is suboptimal. There is no locking so only * use this for single-threaded callers. */ char * acpi_name(ACPI_HANDLE handle) { ACPI_BUFFER buf; static char data[256]; buf.Length = sizeof(data); buf.Pointer = data; if (handle && ACPI_SUCCESS(AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf))) return (data); return ("(unknown)"); } /* * Debugging/bug-avoidance. Avoid trying to fetch info on various * parts of the namespace. */ int acpi_avoid(ACPI_HANDLE handle) { char *cp, *env, *np; int len; np = acpi_name(handle); if (*np == '\\') np++; if ((env = getenv("debug.acpi.avoid")) == NULL) return (0); /* Scan the avoid list checking for a match */ cp = env; for (;;) { while (*cp != 0 && isspace(*cp)) cp++; if (*cp == 0) break; len = 0; while (cp[len] != 0 && !isspace(cp[len])) len++; if (!strncmp(cp, np, len)) { freeenv(env); return(1); } cp += len; } freeenv(env); return (0); } /* * Debugging/bug-avoidance. Disable ACPI subsystem components. */ int acpi_disabled(char *subsys) { char *cp, *env; int len; if ((env = getenv("debug.acpi.disabled")) == NULL) return (0); if (strcmp(env, "all") == 0) { freeenv(env); return (1); } /* Scan the disable list, checking for a match. */ cp = env; for (;;) { while (*cp != '\0' && isspace(*cp)) cp++; if (*cp == '\0') break; len = 0; while (cp[len] != '\0' && !isspace(cp[len])) len++; if (strncmp(cp, subsys, len) == 0) { freeenv(env); return (1); } cp += len; } freeenv(env); return (0); } /* * Control interface. * * We multiplex ioctls for all participating ACPI devices here. Individual * drivers wanting to be accessible via /dev/acpi should use the * register/deregister interface to make their handlers visible. */ struct acpi_ioctl_hook { TAILQ_ENTRY(acpi_ioctl_hook) link; u_long cmd; acpi_ioctl_fn fn; void *arg; }; static TAILQ_HEAD(,acpi_ioctl_hook) acpi_ioctl_hooks; static int acpi_ioctl_hooks_initted; int acpi_register_ioctl(u_long cmd, acpi_ioctl_fn fn, void *arg) { struct acpi_ioctl_hook *hp; if ((hp = malloc(sizeof(*hp), M_ACPIDEV, M_NOWAIT)) == NULL) return (ENOMEM); hp->cmd = cmd; hp->fn = fn; hp->arg = arg; ACPI_LOCK(acpi); if (acpi_ioctl_hooks_initted == 0) { TAILQ_INIT(&acpi_ioctl_hooks); acpi_ioctl_hooks_initted = 1; } TAILQ_INSERT_TAIL(&acpi_ioctl_hooks, hp, link); ACPI_UNLOCK(acpi); return (0); } void acpi_deregister_ioctl(u_long cmd, acpi_ioctl_fn fn) { struct acpi_ioctl_hook *hp; ACPI_LOCK(acpi); TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) if (hp->cmd == cmd && hp->fn == fn) break; if (hp != NULL) { TAILQ_REMOVE(&acpi_ioctl_hooks, hp, link); free(hp, M_ACPIDEV); } ACPI_UNLOCK(acpi); } static int acpiopen(struct cdev *dev, int flag, int fmt, d_thread_t *td) { return (0); } static int acpiclose(struct cdev *dev, int flag, int fmt, d_thread_t *td) { return (0); } static int acpiioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td) { struct acpi_softc *sc; struct acpi_ioctl_hook *hp; int error, state; error = 0; hp = NULL; sc = dev->si_drv1; /* * Scan the list of registered ioctls, looking for handlers. */ ACPI_LOCK(acpi); if (acpi_ioctl_hooks_initted) TAILQ_FOREACH(hp, &acpi_ioctl_hooks, link) { if (hp->cmd == cmd) break; } ACPI_UNLOCK(acpi); if (hp) return (hp->fn(cmd, addr, hp->arg)); /* * Core ioctls are not permitted for non-writable user. * Currently, other ioctls just fetch information. * Not changing system behavior. */ if ((flag & FWRITE) == 0) return (EPERM); /* Core system ioctls. */ switch (cmd) { case ACPIIO_SETSLPSTATE: error = EINVAL; state = *(int *)addr; if (state >= ACPI_STATE_S0 && state <= ACPI_S_STATES_MAX) if (ACPI_SUCCESS(acpi_SetSleepState(sc, state))) error = 0; break; default: error = ENXIO; break; } return (error); } static int acpi_supported_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) { int error; struct sbuf sb; UINT8 state, TypeA, TypeB; sbuf_new(&sb, NULL, 32, SBUF_AUTOEXTEND); for (state = ACPI_STATE_S1; state < ACPI_S_STATES_MAX + 1; state++) if (ACPI_SUCCESS(AcpiGetSleepTypeData(state, &TypeA, &TypeB))) sbuf_printf(&sb, "S%d ", state); sbuf_trim(&sb); sbuf_finish(&sb); error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req); sbuf_delete(&sb); return (error); } static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS) { char sleep_state[10]; int error; u_int new_state, old_state; old_state = *(u_int *)oidp->oid_arg1; if (old_state > ACPI_S_STATES_MAX + 1) strlcpy(sleep_state, "unknown", sizeof(sleep_state)); else strlcpy(sleep_state, sleep_state_names[old_state], sizeof(sleep_state)); error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req); if (error == 0 && req->newptr != NULL) { new_state = ACPI_STATE_S0; for (; new_state <= ACPI_S_STATES_MAX + 1; new_state++) if (strcmp(sleep_state, sleep_state_names[new_state]) == 0) break; if (new_state <= ACPI_S_STATES_MAX + 1) { if (new_state != old_state) *(u_int *)oidp->oid_arg1 = new_state; } else error = EINVAL; } return (error); } /* Inform devctl(4) when we receive a Notify. */ void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify) { char notify_buf[16]; ACPI_BUFFER handle_buf; ACPI_STATUS status; if (subsystem == NULL) return; handle_buf.Pointer = NULL; handle_buf.Length = ACPI_ALLOCATE_BUFFER; status = AcpiNsHandleToPathname(h, &handle_buf); if (ACPI_FAILURE(status)) return; snprintf(notify_buf, sizeof(notify_buf), "notify=0x%02x", notify); devctl_notify("ACPI", subsystem, handle_buf.Pointer, notify_buf); AcpiOsFree(handle_buf.Pointer); } #ifdef ACPI_DEBUG /* * Support for parsing debug options from the kernel environment. * * Bits may be set in the AcpiDbgLayer and AcpiDbgLevel debug registers * by specifying the names of the bits in the debug.acpi.layer and * debug.acpi.level environment variables. Bits may be unset by * prefixing the bit name with !. */ struct debugtag { char *name; UINT32 value; }; static struct debugtag dbg_layer[] = { {"ACPI_UTILITIES", ACPI_UTILITIES}, {"ACPI_HARDWARE", ACPI_HARDWARE}, {"ACPI_EVENTS", ACPI_EVENTS}, {"ACPI_TABLES", ACPI_TABLES}, {"ACPI_NAMESPACE", ACPI_NAMESPACE}, {"ACPI_PARSER", ACPI_PARSER}, {"ACPI_DISPATCHER", ACPI_DISPATCHER}, {"ACPI_EXECUTER", ACPI_EXECUTER}, {"ACPI_RESOURCES", ACPI_RESOURCES}, {"ACPI_CA_DEBUGGER", ACPI_CA_DEBUGGER}, {"ACPI_OS_SERVICES", ACPI_OS_SERVICES}, {"ACPI_CA_DISASSEMBLER", ACPI_CA_DISASSEMBLER}, {"ACPI_ALL_COMPONENTS", ACPI_ALL_COMPONENTS}, {"ACPI_AC_ADAPTER", ACPI_AC_ADAPTER}, {"ACPI_BATTERY", ACPI_BATTERY}, {"ACPI_BUS", ACPI_BUS}, {"ACPI_BUTTON", ACPI_BUTTON}, {"ACPI_EC", ACPI_EC}, {"ACPI_FAN", ACPI_FAN}, {"ACPI_POWERRES", ACPI_POWERRES}, {"ACPI_PROCESSOR", ACPI_PROCESSOR}, {"ACPI_THERMAL", ACPI_THERMAL}, {"ACPI_TIMER", ACPI_TIMER}, {"ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS}, {NULL, 0} }; static struct debugtag dbg_level[] = { {"ACPI_LV_ERROR", ACPI_LV_ERROR}, {"ACPI_LV_WARN", ACPI_LV_WARN}, {"ACPI_LV_INIT", ACPI_LV_INIT}, {"ACPI_LV_DEBUG_OBJECT", ACPI_LV_DEBUG_OBJECT}, {"ACPI_LV_INFO", ACPI_LV_INFO}, {"ACPI_LV_ALL_EXCEPTIONS", ACPI_LV_ALL_EXCEPTIONS}, /* Trace verbosity level 1 [Standard Trace Level] */ {"ACPI_LV_INIT_NAMES", ACPI_LV_INIT_NAMES}, {"ACPI_LV_PARSE", ACPI_LV_PARSE}, {"ACPI_LV_LOAD", ACPI_LV_LOAD}, {"ACPI_LV_DISPATCH", ACPI_LV_DISPATCH}, {"ACPI_LV_EXEC", ACPI_LV_EXEC}, {"ACPI_LV_NAMES", ACPI_LV_NAMES}, {"ACPI_LV_OPREGION", ACPI_LV_OPREGION}, {"ACPI_LV_BFIELD", ACPI_LV_BFIELD}, {"ACPI_LV_TABLES", ACPI_LV_TABLES}, {"ACPI_LV_VALUES", ACPI_LV_VALUES}, {"ACPI_LV_OBJECTS", ACPI_LV_OBJECTS}, {"ACPI_LV_RESOURCES", ACPI_LV_RESOURCES}, {"ACPI_LV_USER_REQUESTS", ACPI_LV_USER_REQUESTS}, {"ACPI_LV_PACKAGE", ACPI_LV_PACKAGE}, {"ACPI_LV_VERBOSITY1", ACPI_LV_VERBOSITY1}, /* Trace verbosity level 2 [Function tracing and memory allocation] */ {"ACPI_LV_ALLOCATIONS", ACPI_LV_ALLOCATIONS}, {"ACPI_LV_FUNCTIONS", ACPI_LV_FUNCTIONS}, {"ACPI_LV_OPTIMIZATIONS", ACPI_LV_OPTIMIZATIONS}, {"ACPI_LV_VERBOSITY2", ACPI_LV_VERBOSITY2}, {"ACPI_LV_ALL", ACPI_LV_ALL}, /* Trace verbosity level 3 [Threading, I/O, and Interrupts] */ {"ACPI_LV_MUTEX", ACPI_LV_MUTEX}, {"ACPI_LV_THREADS", ACPI_LV_THREADS}, {"ACPI_LV_IO", ACPI_LV_IO}, {"ACPI_LV_INTERRUPTS", ACPI_LV_INTERRUPTS}, {"ACPI_LV_VERBOSITY3", ACPI_LV_VERBOSITY3}, /* Exceptionally verbose output -- also used in the global "DebugLevel" */ {"ACPI_LV_AML_DISASSEMBLE", ACPI_LV_AML_DISASSEMBLE}, {"ACPI_LV_VERBOSE_INFO", ACPI_LV_VERBOSE_INFO}, {"ACPI_LV_FULL_TABLES", ACPI_LV_FULL_TABLES}, {"ACPI_LV_EVENTS", ACPI_LV_EVENTS}, {"ACPI_LV_VERBOSE", ACPI_LV_VERBOSE}, {NULL, 0} }; static void acpi_parse_debug(char *cp, struct debugtag *tag, UINT32 *flag) { char *ep; int i, l; int set; while (*cp) { if (isspace(*cp)) { cp++; continue; } ep = cp; while (*ep && !isspace(*ep)) ep++; if (*cp == '!') { set = 0; cp++; if (cp == ep) continue; } else { set = 1; } l = ep - cp; for (i = 0; tag[i].name != NULL; i++) { if (!strncmp(cp, tag[i].name, l)) { if (set) *flag |= tag[i].value; else *flag &= ~tag[i].value; } } cp = ep; } } static void acpi_set_debugging(void *junk) { char *layer, *level; if (cold) { AcpiDbgLayer = 0; AcpiDbgLevel = 0; } layer = getenv("debug.acpi.layer"); level = getenv("debug.acpi.level"); if (layer == NULL && level == NULL) return; printf("ACPI set debug"); if (layer != NULL) { if (strcmp("NONE", layer) != 0) printf(" layer '%s'", layer); acpi_parse_debug(layer, &dbg_layer[0], &AcpiDbgLayer); freeenv(layer); } if (level != NULL) { if (strcmp("NONE", level) != 0) printf(" level '%s'", level); acpi_parse_debug(level, &dbg_level[0], &AcpiDbgLevel); freeenv(level); } printf("\n"); } SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging, NULL); static int acpi_debug_sysctl(SYSCTL_HANDLER_ARGS) { int error, *dbg; struct debugtag *tag; struct sbuf sb; if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) return (ENOMEM); if (strcmp(oidp->oid_arg1, "debug.acpi.layer") == 0) { tag = &dbg_layer[0]; dbg = &AcpiDbgLayer; } else { tag = &dbg_level[0]; dbg = &AcpiDbgLevel; } /* Get old values if this is a get request. */ ACPI_SERIAL_BEGIN(acpi); if (*dbg == 0) { sbuf_cpy(&sb, "NONE"); } else if (req->newptr == NULL) { for (; tag->name != NULL; tag++) { if ((*dbg & tag->value) == tag->value) sbuf_printf(&sb, "%s ", tag->name); } } sbuf_trim(&sb); sbuf_finish(&sb); /* Copy out the old values to the user. */ error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb)); sbuf_delete(&sb); /* If the user is setting a string, parse it. */ if (error == 0 && req->newptr != NULL) { *dbg = 0; setenv((char *)oidp->oid_arg1, (char *)req->newptr); acpi_set_debugging(NULL); } ACPI_SERIAL_END(acpi); return (error); } SYSCTL_PROC(_debug_acpi, OID_AUTO, layer, CTLFLAG_RW | CTLTYPE_STRING, "debug.acpi.layer", 0, acpi_debug_sysctl, "A", ""); SYSCTL_PROC(_debug_acpi, OID_AUTO, level, CTLFLAG_RW | CTLTYPE_STRING, "debug.acpi.level", 0, acpi_debug_sysctl, "A", ""); #endif /* ACPI_DEBUG */ static int acpi_pm_func(u_long cmd, void *arg, ...) { int state, acpi_state; int error; struct acpi_softc *sc; va_list ap; error = 0; switch (cmd) { case POWER_CMD_SUSPEND: sc = (struct acpi_softc *)arg; if (sc == NULL) { error = EINVAL; goto out; } va_start(ap, arg); state = va_arg(ap, int); va_end(ap); switch (state) { case POWER_SLEEP_STATE_STANDBY: acpi_state = sc->acpi_standby_sx; break; case POWER_SLEEP_STATE_SUSPEND: acpi_state = sc->acpi_suspend_sx; break; case POWER_SLEEP_STATE_HIBERNATE: acpi_state = ACPI_STATE_S4; break; default: error = EINVAL; goto out; } acpi_SetSleepState(sc, acpi_state); break; default: error = EINVAL; goto out; } out: return (error); } static void acpi_pm_register(void *arg) { if (!cold || resource_disabled("acpi", 0)) return; power_pm_register(POWER_PM_TYPE_ACPI, acpi_pm_func, NULL); } SYSINIT(power, SI_SUB_KLD, SI_ORDER_ANY, acpi_pm_register, 0); Index: stable/6/sys/dev/acpica/acpi_battery.c =================================================================== --- stable/6/sys/dev/acpica/acpi_battery.c (revision 159525) +++ stable/6/sys/dev/acpica/acpi_battery.c (revision 159526) @@ -1,499 +1,499 @@ /*- * Copyright (c) 2005 Nate Lawson * Copyright (c) 2000 Mitsuru IWASAKI * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include /* Default seconds before re-sampling the battery state. */ #define ACPI_BATTERY_INFO_EXPIRE 5 static int acpi_batteries_initted; static int acpi_battery_info_expire = ACPI_BATTERY_INFO_EXPIRE; static struct acpi_battinfo acpi_battery_battinfo; static struct sysctl_ctx_list acpi_battery_sysctl_ctx; static struct sysctl_oid *acpi_battery_sysctl_tree; ACPI_SERIAL_DECL(battery, "ACPI generic battery"); static void acpi_reset_battinfo(struct acpi_battinfo *info); static void acpi_battery_clean_str(char *str, int len); static device_t acpi_battery_find_dev(u_int logical_unit); static int acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg); static int acpi_battery_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_battery_units_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_battery_init(void); int acpi_battery_register(device_t dev) { int error; error = 0; ACPI_SERIAL_BEGIN(battery); if (!acpi_batteries_initted) error = acpi_battery_init(); ACPI_SERIAL_END(battery); return (error); } int acpi_battery_remove(device_t dev) { return (0); } int acpi_battery_get_units(void) { devclass_t batt_dc; batt_dc = devclass_find("battery"); if (batt_dc == NULL) return (0); return (devclass_get_count(batt_dc)); } int acpi_battery_get_info_expire(void) { return (acpi_battery_info_expire); } /* Check _BST results for validity. */ int acpi_battery_bst_valid(struct acpi_bst *bst) { return (bst->state < ACPI_BATT_STAT_MAX && bst->cap != ACPI_BATT_UNKNOWN && bst->volt != ACPI_BATT_UNKNOWN); } /* Check _BIF results for validity. */ int acpi_battery_bif_valid(struct acpi_bif *bif) { return (bif->lfcap != 0); } /* Get info about one or all batteries. */ int acpi_battery_get_battinfo(device_t dev, struct acpi_battinfo *battinfo) { int batt_stat, devcount, dev_idx, error, i; int total_cap, total_min, valid_rate, valid_units; devclass_t batt_dc; device_t batt_dev; struct acpi_bst *bst; struct acpi_bif *bif; struct acpi_battinfo *bi; /* * Get the battery devclass and max unit for battery devices. If there * are none or error, return immediately. */ batt_dc = devclass_find("battery"); if (batt_dc == NULL) return (ENXIO); devcount = devclass_get_maxunit(batt_dc); if (devcount == 0) return (ENXIO); /* * Allocate storage for all _BST data, their derived battinfo data, * and the current battery's _BIF data. */ bst = malloc(devcount * sizeof(*bst), M_TEMP, M_WAITOK | M_ZERO); bi = malloc(devcount * sizeof(*bi), M_TEMP, M_WAITOK | M_ZERO); bif = malloc(sizeof(*bif), M_TEMP, M_WAITOK | M_ZERO); /* * Pass 1: for each battery that is present and valid, get its status, * calculate percent capacity remaining, and sum all the current * discharge rates. */ dev_idx = -1; batt_stat = valid_rate = valid_units = 0; for (i = 0; i < devcount; i++) { /* Default info for every battery is "not present". */ acpi_reset_battinfo(&bi[i]); /* * Find the device. Since devcount is in terms of max units, this * may be a sparse array so skip devices that aren't present. */ batt_dev = devclass_get_device(batt_dc, i); if (batt_dev == NULL) continue; /* If examining a specific battery and this is it, record its index. */ if (dev != NULL && dev == batt_dev) dev_idx = i; /* * Be sure we can get various info from the battery. Note that we * can't check acpi_BatteryIsPresent() because smart batteries only * return that the device is present. */ if (ACPI_BATT_GET_STATUS(batt_dev, &bst[i]) != 0 || ACPI_BATT_GET_INFO(batt_dev, bif) != 0) continue; /* If a battery is not installed, we sometimes get strange values. */ if (!acpi_battery_bst_valid(&bst[i]) || !acpi_battery_bif_valid(bif)) continue; /* * Record current state. If both charging and discharging are set, * ignore the charging flag. */ valid_units++; if ((bst[i].state & ACPI_BATT_STAT_DISCHARG) != 0) bst[i].state &= ~ACPI_BATT_STAT_CHARGING; batt_stat |= bst[i].state; bi[i].state = bst[i].state; /* * If the battery info is in terms of mA, convert to mW by * multiplying by the design voltage. */ if (bif->units == ACPI_BIF_UNITS_MA) { bst[i].rate = (bst[i].rate * bif->dvol) / 1000; bst[i].cap = (bst[i].cap * bif->dvol) / 1000; bif->lfcap = (bif->lfcap * bif->dvol) / 1000; } /* Calculate percent capacity remaining. */ bi[i].cap = (100 * bst[i].cap) / bif->lfcap; /* * Some laptops report the "design-capacity" instead of the * "real-capacity" when the battery is fully charged. That breaks * the above arithmetic as it needs to be 100% maximum. */ if (bi[i].cap > 100) bi[i].cap = 100; /* * On systems with more than one battery, they may get used * sequentially, thus bst.rate may only signify the one currently * in use. For the remaining batteries, bst.rate will be zero, * which makes it impossible to calculate the total remaining time. * Therefore, we sum the bst.rate for batteries in the discharging * state and use the sum to calculate the total remaining time. */ if (bst[i].rate != ACPI_BATT_UNKNOWN && (bst[i].state & ACPI_BATT_STAT_DISCHARG) != 0) valid_rate += bst[i].rate; } /* If the caller asked for a device but we didn't find it, error. */ if (dev != NULL && dev_idx == -1) { error = ENXIO; goto out; } /* Pass 2: calculate capacity and remaining time for all batteries. */ total_cap = total_min = 0; for (i = 0; i < devcount; i++) { /* * If any batteries are discharging, use the sum of the bst.rate * values. Otherwise, we are on AC power, and there is infinite * time remaining for this battery until we go offline. */ if (valid_rate > 0) bi[i].min = (60 * bst[i].cap) / valid_rate; else bi[i].min = 0; total_min += bi[i].min; /* If this battery is not present, don't use its capacity. */ if (bi[i].cap != -1) total_cap += bi[i].cap; } /* * Return total battery percent and time remaining. If there are * no valid batteries, report values as unknown. */ if (valid_units > 0) { if (dev == NULL) { battinfo->cap = total_cap / valid_units; battinfo->min = total_min; battinfo->state = batt_stat; battinfo->rate = valid_rate; } else { battinfo->cap = bi[dev_idx].cap; battinfo->min = bi[dev_idx].min; battinfo->state = bi[dev_idx].state; battinfo->rate = bst[dev_idx].rate; } /* * If the queried battery has no discharge rate or is charging, * report that we don't know the remaining time. */ if (valid_rate == 0 || (battinfo->state & ACPI_BATT_STAT_CHARGING)) battinfo->min = -1; } else acpi_reset_battinfo(battinfo); error = 0; out: if (bi) free(bi, M_TEMP); if (bif) free(bif, M_TEMP); if (bst) free(bst, M_TEMP); return (error); } static void acpi_reset_battinfo(struct acpi_battinfo *info) { info->cap = -1; info->min = -1; info->state = ACPI_BATT_STAT_NOT_PRESENT; info->rate = -1; } /* Make string printable, removing invalid chars. */ static void acpi_battery_clean_str(char *str, int len) { int i; for (i = 0; i < len && *str != '\0'; i++, str++) { if (!isprint(*str)) *str = '?'; } /* NUL-terminate the string if we reached the end. */ if (i == len) *str = '\0'; } /* * The battery interface deals with devices and methods but userland * expects a logical unit number. Convert a logical unit to a device_t. */ static device_t acpi_battery_find_dev(u_int logical_unit) { int found_unit, i, maxunit; device_t dev; devclass_t batt_dc; dev = NULL; found_unit = 0; batt_dc = devclass_find("battery"); maxunit = devclass_get_maxunit(batt_dc); for (i = 0; i < maxunit; i++) { dev = devclass_get_device(batt_dc, i); if (dev == NULL) continue; if (logical_unit == found_unit) break; found_unit++; dev = NULL; } return (dev); } static int acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg) { union acpi_battery_ioctl_arg *ioctl_arg; int error, unit; device_t dev; /* For commands that use the ioctl_arg struct, validate it first. */ error = ENXIO; unit = 0; dev = NULL; ioctl_arg = NULL; if (IOCPARM_LEN(cmd) == sizeof(*ioctl_arg)) { ioctl_arg = (union acpi_battery_ioctl_arg *)addr; unit = ioctl_arg->unit; if (unit != ACPI_BATTERY_ALL_UNITS) dev = acpi_battery_find_dev(unit); } /* * No security check required: information retrieval only. If * new functions are added here, a check might be required. */ switch (cmd) { case ACPIIO_BATT_GET_UNITS: *(int *)addr = acpi_battery_get_units(); break; case ACPIIO_BATT_GET_BATTINFO: if (dev != NULL || unit == ACPI_BATTERY_ALL_UNITS) { bzero(&ioctl_arg->battinfo, sizeof(ioctl_arg->battinfo)); error = acpi_battery_get_battinfo(dev, &ioctl_arg->battinfo); } break; case ACPIIO_BATT_GET_BIF: if (dev != NULL) { bzero(&ioctl_arg->bif, sizeof(ioctl_arg->bif)); error = ACPI_BATT_GET_INFO(dev, &ioctl_arg->bif); /* * Remove invalid characters. Perhaps this should be done * within a convenience function so all callers get the * benefit. */ acpi_battery_clean_str(ioctl_arg->bif.model, sizeof(ioctl_arg->bif.model)); acpi_battery_clean_str(ioctl_arg->bif.serial, sizeof(ioctl_arg->bif.serial)); acpi_battery_clean_str(ioctl_arg->bif.type, sizeof(ioctl_arg->bif.type)); acpi_battery_clean_str(ioctl_arg->bif.oeminfo, sizeof(ioctl_arg->bif.oeminfo)); } break; case ACPIIO_BATT_GET_BST: if (dev != NULL) { bzero(&ioctl_arg->bst, sizeof(ioctl_arg->bst)); error = ACPI_BATT_GET_STATUS(dev, &ioctl_arg->bst); } break; default: error = EINVAL; } return (error); } static int acpi_battery_sysctl(SYSCTL_HANDLER_ARGS) { int val, error; acpi_battery_get_battinfo(NULL, &acpi_battery_battinfo); val = *(u_int *)oidp->oid_arg1; error = sysctl_handle_int(oidp, &val, 0, req); return (error); } static int acpi_battery_units_sysctl(SYSCTL_HANDLER_ARGS) { int count, error; count = acpi_battery_get_units(); error = sysctl_handle_int(oidp, &count, 0, req); return (error); } static int acpi_battery_init(void) { struct acpi_softc *sc; device_t dev; int error; ACPI_SERIAL_ASSERT(battery); error = ENXIO; dev = devclass_get_device(devclass_find("acpi"), 0); if (dev == NULL) goto out; sc = device_get_softc(dev); error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS, acpi_battery_ioctl, NULL); if (error != 0) goto out; error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO, acpi_battery_ioctl, NULL); if (error != 0) goto out; error = acpi_register_ioctl(ACPIIO_BATT_GET_BIF, acpi_battery_ioctl, NULL); if (error != 0) goto out; error = acpi_register_ioctl(ACPIIO_BATT_GET_BST, acpi_battery_ioctl, NULL); if (error != 0) goto out; sysctl_ctx_init(&acpi_battery_sysctl_ctx); acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO, "battery", CTLFLAG_RD, 0, "battery status and info"); SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(acpi_battery_sysctl_tree), OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", "percent capacity remaining"); SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(acpi_battery_sysctl_tree), OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", "remaining time in minutes"); SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(acpi_battery_sysctl_tree), OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD, &acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", "current status flags"); SYSCTL_ADD_PROC(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(acpi_battery_sysctl_tree), OID_AUTO, "units", CTLTYPE_INT | CTLFLAG_RD, NULL, 0, acpi_battery_units_sysctl, "I", "number of batteries"); SYSCTL_ADD_INT(&acpi_battery_sysctl_ctx, SYSCTL_CHILDREN(acpi_battery_sysctl_tree), - OID_AUTO, "info_expire", CTLFLAG_RD | CTLFLAG_RW, + OID_AUTO, "info_expire", CTLFLAG_RW, &acpi_battery_info_expire, 0, "time in seconds until info is refreshed"); acpi_batteries_initted = TRUE; out: if (error != 0) { acpi_deregister_ioctl(ACPIIO_BATT_GET_UNITS, acpi_battery_ioctl); acpi_deregister_ioctl(ACPIIO_BATT_GET_BATTINFO, acpi_battery_ioctl); acpi_deregister_ioctl(ACPIIO_BATT_GET_BIF, acpi_battery_ioctl); acpi_deregister_ioctl(ACPIIO_BATT_GET_BST, acpi_battery_ioctl); } return (error); } Index: stable/6/sys/dev/acpica/acpi_cmbat.c =================================================================== --- stable/6/sys/dev/acpica/acpi_cmbat.c (revision 159525) +++ stable/6/sys/dev/acpica/acpi_cmbat.c (revision 159526) @@ -1,468 +1,475 @@ /*- * Copyright (c) 2005 Nate Lawson * Copyright (c) 2000 Munehiro Matsuda * Copyright (c) 2000 Takanori Watanabe * Copyright (c) 2000 Mitsuru IWASAKI * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include #include MALLOC_DEFINE(M_ACPICMBAT, "acpicmbat", "ACPI control method battery data"); /* Number of times to retry initialization before giving up. */ #define ACPI_CMBAT_RETRY_MAX 6 /* Check the battery once a minute. */ #define CMBAT_POLLRATE (60 * hz) /* Hooks for the ACPI CA debugging infrastructure */ #define _COMPONENT ACPI_BATTERY ACPI_MODULE_NAME("BATTERY") #define ACPI_BATTERY_BST_CHANGE 0x80 #define ACPI_BATTERY_BIF_CHANGE 0x81 struct acpi_cmbat_softc { device_t dev; int flags; struct acpi_bif bif; struct acpi_bst bst; struct timespec bst_lastupdated; }; ACPI_SERIAL_DECL(cmbat, "ACPI cmbat"); static int acpi_cmbat_probe(device_t dev); static int acpi_cmbat_attach(device_t dev); static int acpi_cmbat_detach(device_t dev); static int acpi_cmbat_resume(device_t dev); static void acpi_cmbat_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context); static int acpi_cmbat_info_expired(struct timespec *lastupdated); static void acpi_cmbat_info_updated(struct timespec *lastupdated); static void acpi_cmbat_get_bst(void *arg); static void acpi_cmbat_get_bif_task(void *arg); static void acpi_cmbat_get_bif(void *arg); static int acpi_cmbat_bst(device_t dev, struct acpi_bst *bstp); static int acpi_cmbat_bif(device_t dev, struct acpi_bif *bifp); static void acpi_cmbat_init_battery(void *arg); static device_method_t acpi_cmbat_methods[] = { /* Device interface */ DEVMETHOD(device_probe, acpi_cmbat_probe), DEVMETHOD(device_attach, acpi_cmbat_attach), DEVMETHOD(device_detach, acpi_cmbat_detach), DEVMETHOD(device_resume, acpi_cmbat_resume), /* ACPI battery interface */ DEVMETHOD(acpi_batt_get_info, acpi_cmbat_bif), DEVMETHOD(acpi_batt_get_status, acpi_cmbat_bst), {0, 0} }; static driver_t acpi_cmbat_driver = { "battery", acpi_cmbat_methods, sizeof(struct acpi_cmbat_softc), }; static devclass_t acpi_cmbat_devclass; DRIVER_MODULE(acpi_cmbat, acpi, acpi_cmbat_driver, acpi_cmbat_devclass, 0, 0); MODULE_DEPEND(acpi_cmbat, acpi, 1, 1, 1); static int acpi_cmbat_probe(device_t dev) { static char *cmbat_ids[] = { "PNP0C0A", NULL }; if (acpi_disabled("cmbat") || ACPI_ID_PROBE(device_get_parent(dev), dev, cmbat_ids) == NULL) return (ENXIO); device_set_desc(dev, "ACPI Control Method Battery"); return (0); } static int acpi_cmbat_attach(device_t dev) { int error; ACPI_HANDLE handle; struct acpi_cmbat_softc *sc; sc = device_get_softc(dev); handle = acpi_get_handle(dev); sc->dev = dev; timespecclear(&sc->bst_lastupdated); error = acpi_battery_register(dev); if (error != 0) { device_printf(dev, "registering battery failed\n"); return (error); } /* * Install a system notify handler in addition to the device notify. * Toshiba notebook uses this alternate notify for its battery. */ AcpiInstallNotifyHandler(handle, ACPI_ALL_NOTIFY, acpi_cmbat_notify_handler, dev); AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_init_battery, dev); return (0); } static int acpi_cmbat_detach(device_t dev) { + ACPI_HANDLE handle; + handle = acpi_get_handle(dev); + AcpiRemoveNotifyHandler(handle, ACPI_ALL_NOTIFY, acpi_cmbat_notify_handler); acpi_battery_remove(dev); return (0); } static int acpi_cmbat_resume(device_t dev) { AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_init_battery, dev); return (0); } static void acpi_cmbat_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) { struct acpi_cmbat_softc *sc; device_t dev; dev = (device_t)context; sc = device_get_softc(dev); switch (notify) { case ACPI_NOTIFY_DEVICE_CHECK: case ACPI_BATTERY_BST_CHANGE: /* * Clear the last updated time. The next call to retrieve the * battery status will get the new value for us. */ timespecclear(&sc->bst_lastupdated); break; case ACPI_NOTIFY_BUS_CHECK: case ACPI_BATTERY_BIF_CHANGE: /* * Queue a callback to get the current battery info from thread * context. It's not safe to block in a notify handler. */ AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif_task, dev); break; } acpi_UserNotify("CMBAT", h, notify); } static int acpi_cmbat_info_expired(struct timespec *lastupdated) { struct timespec curtime; ACPI_SERIAL_ASSERT(cmbat); if (lastupdated == NULL) return (TRUE); if (!timespecisset(lastupdated)) return (TRUE); getnanotime(&curtime); timespecsub(&curtime, lastupdated); return (curtime.tv_sec < 0 || curtime.tv_sec > acpi_battery_get_info_expire()); } static void acpi_cmbat_info_updated(struct timespec *lastupdated) { ACPI_SERIAL_ASSERT(cmbat); if (lastupdated != NULL) getnanotime(lastupdated); } static void acpi_cmbat_get_bst(void *arg) { struct acpi_cmbat_softc *sc; ACPI_STATUS as; ACPI_OBJECT *res; ACPI_HANDLE h; ACPI_BUFFER bst_buffer; device_t dev; ACPI_SERIAL_ASSERT(cmbat); dev = arg; sc = device_get_softc(dev); h = acpi_get_handle(dev); bst_buffer.Pointer = NULL; bst_buffer.Length = ACPI_ALLOCATE_BUFFER; if (!acpi_cmbat_info_expired(&sc->bst_lastupdated)) goto end; as = AcpiEvaluateObject(h, "_BST", NULL, &bst_buffer); if (ACPI_FAILURE(as)) { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "error fetching current battery status -- %s\n", AcpiFormatException(as)); goto end; } res = (ACPI_OBJECT *)bst_buffer.Pointer; if (!ACPI_PKG_VALID(res, 4)) { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "battery status corrupted\n"); goto end; } if (acpi_PkgInt32(res, 0, &sc->bst.state) != 0) goto end; if (acpi_PkgInt32(res, 1, &sc->bst.rate) != 0) goto end; if (acpi_PkgInt32(res, 2, &sc->bst.cap) != 0) goto end; if (acpi_PkgInt32(res, 3, &sc->bst.volt) != 0) goto end; acpi_cmbat_info_updated(&sc->bst_lastupdated); /* XXX If all batteries are critical, perhaps we should suspend. */ if (sc->bst.state & ACPI_BATT_STAT_CRITICAL) { if ((sc->flags & ACPI_BATT_STAT_CRITICAL) == 0) { sc->flags |= ACPI_BATT_STAT_CRITICAL; device_printf(dev, "critically low charge!\n"); } } else sc->flags &= ~ACPI_BATT_STAT_CRITICAL; end: if (bst_buffer.Pointer != NULL) AcpiOsFree(bst_buffer.Pointer); } /* XXX There should be a cleaner way to do this locking. */ static void acpi_cmbat_get_bif_task(void *arg) { ACPI_SERIAL_BEGIN(cmbat); acpi_cmbat_get_bif(arg); ACPI_SERIAL_END(cmbat); } static void acpi_cmbat_get_bif(void *arg) { struct acpi_cmbat_softc *sc; ACPI_STATUS as; ACPI_OBJECT *res; ACPI_HANDLE h; ACPI_BUFFER bif_buffer; device_t dev; ACPI_SERIAL_ASSERT(cmbat); dev = arg; sc = device_get_softc(dev); h = acpi_get_handle(dev); bif_buffer.Pointer = NULL; bif_buffer.Length = ACPI_ALLOCATE_BUFFER; as = AcpiEvaluateObject(h, "_BIF", NULL, &bif_buffer); if (ACPI_FAILURE(as)) { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "error fetching current battery info -- %s\n", AcpiFormatException(as)); goto end; } res = (ACPI_OBJECT *)bif_buffer.Pointer; if (!ACPI_PKG_VALID(res, 13)) { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "battery info corrupted\n"); goto end; } if (acpi_PkgInt32(res, 0, &sc->bif.units) != 0) goto end; if (acpi_PkgInt32(res, 1, &sc->bif.dcap) != 0) goto end; if (acpi_PkgInt32(res, 2, &sc->bif.lfcap) != 0) goto end; if (acpi_PkgInt32(res, 3, &sc->bif.btech) != 0) goto end; if (acpi_PkgInt32(res, 4, &sc->bif.dvol) != 0) goto end; if (acpi_PkgInt32(res, 5, &sc->bif.wcap) != 0) goto end; if (acpi_PkgInt32(res, 6, &sc->bif.lcap) != 0) goto end; if (acpi_PkgInt32(res, 7, &sc->bif.gra1) != 0) goto end; if (acpi_PkgInt32(res, 8, &sc->bif.gra2) != 0) goto end; if (acpi_PkgStr(res, 9, sc->bif.model, ACPI_CMBAT_MAXSTRLEN) != 0) goto end; if (acpi_PkgStr(res, 10, sc->bif.serial, ACPI_CMBAT_MAXSTRLEN) != 0) goto end; if (acpi_PkgStr(res, 11, sc->bif.type, ACPI_CMBAT_MAXSTRLEN) != 0) goto end; if (acpi_PkgStr(res, 12, sc->bif.oeminfo, ACPI_CMBAT_MAXSTRLEN) != 0) goto end; end: if (bif_buffer.Pointer != NULL) AcpiOsFree(bif_buffer.Pointer); } static int acpi_cmbat_bif(device_t dev, struct acpi_bif *bifp) { struct acpi_cmbat_softc *sc; sc = device_get_softc(dev); /* * Just copy the data. The only value that should change is the * last-full capacity, so we only update when we get a notify that says * the info has changed. Many systems apparently take a long time to * process a _BIF call so we avoid it if possible. */ ACPI_SERIAL_BEGIN(cmbat); bifp->units = sc->bif.units; bifp->dcap = sc->bif.dcap; bifp->lfcap = sc->bif.lfcap; bifp->btech = sc->bif.btech; bifp->dvol = sc->bif.dvol; bifp->wcap = sc->bif.wcap; bifp->lcap = sc->bif.lcap; bifp->gra1 = sc->bif.gra1; bifp->gra2 = sc->bif.gra2; strncpy(bifp->model, sc->bif.model, sizeof(sc->bif.model)); strncpy(bifp->serial, sc->bif.serial, sizeof(sc->bif.serial)); strncpy(bifp->type, sc->bif.type, sizeof(sc->bif.type)); strncpy(bifp->oeminfo, sc->bif.oeminfo, sizeof(sc->bif.oeminfo)); ACPI_SERIAL_END(cmbat); return (0); } static int acpi_cmbat_bst(device_t dev, struct acpi_bst *bstp) { struct acpi_cmbat_softc *sc; sc = device_get_softc(dev); ACPI_SERIAL_BEGIN(cmbat); if (acpi_BatteryIsPresent(dev)) { acpi_cmbat_get_bst(dev); bstp->state = sc->bst.state; bstp->rate = sc->bst.rate; bstp->cap = sc->bst.cap; bstp->volt = sc->bst.volt; } else bstp->state = ACPI_BATT_STAT_NOT_PRESENT; ACPI_SERIAL_END(cmbat); return (0); } static void acpi_cmbat_init_battery(void *arg) { struct acpi_cmbat_softc *sc; int retry, valid; device_t dev; dev = (device_t)arg; sc = device_get_softc(dev); ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "battery initialization start\n"); /* * Try repeatedly to get valid data from the battery. Since the * embedded controller isn't always ready just after boot, we may have * to wait a while. */ for (retry = 0; retry < ACPI_CMBAT_RETRY_MAX; retry++, AcpiOsSleep(10000)) { + /* batteries on DOCK can be ejected w/ DOCK during retrying */ + if (!device_is_attached(dev)) + return; + if (!acpi_BatteryIsPresent(dev)) continue; /* * Only query the battery if this is the first try or the specific * type of info is still invalid. */ ACPI_SERIAL_BEGIN(cmbat); if (retry == 0 || !acpi_battery_bst_valid(&sc->bst)) { timespecclear(&sc->bst_lastupdated); acpi_cmbat_get_bst(dev); } if (retry == 0 || !acpi_battery_bif_valid(&sc->bif)) acpi_cmbat_get_bif(dev); valid = acpi_battery_bst_valid(&sc->bst) && acpi_battery_bif_valid(&sc->bif); ACPI_SERIAL_END(cmbat); if (valid) break; } if (retry == ACPI_CMBAT_RETRY_MAX) { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "battery initialization failed, giving up\n"); } else { ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev), "battery initialization done, tried %d times\n", retry + 1); } } Index: stable/6/sys/dev/acpica/acpi_resource.c =================================================================== --- stable/6/sys/dev/acpica/acpi_resource.c (revision 159525) +++ stable/6/sys/dev/acpica/acpi_resource.c (revision 159526) @@ -1,740 +1,740 @@ /*- * Copyright (c) 2000 Michael Smith * Copyright (c) 2000 BSDi * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include /* Hooks for the ACPI CA debugging infrastructure */ #define _COMPONENT ACPI_BUS ACPI_MODULE_NAME("RESOURCE") struct lookup_irq_request { ACPI_RESOURCE *acpi_res; struct resource *res; int counter; int rid; int found; }; static ACPI_STATUS acpi_lookup_irq_handler(ACPI_RESOURCE *res, void *context) { struct lookup_irq_request *req; u_int irqnum, irq; switch (res->Id) { case ACPI_RSTYPE_IRQ: case ACPI_RSTYPE_EXT_IRQ: if (res->Id == ACPI_RSTYPE_IRQ) { irqnum = res->Data.Irq.NumberOfInterrupts; irq = res->Data.Irq.Interrupts[0]; } else { irqnum = res->Data.ExtendedIrq.NumberOfInterrupts; irq = res->Data.ExtendedIrq.Interrupts[0]; } if (irqnum != 1) break; req = (struct lookup_irq_request *)context; if (req->counter != req->rid) { req->counter++; break; } req->found = 1; KASSERT(irq == rman_get_start(req->res), ("IRQ resources do not match")); bcopy(res, req->acpi_res, sizeof(ACPI_RESOURCE)); return (AE_CTRL_TERMINATE); } return (AE_OK); } ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid, struct resource *res, ACPI_RESOURCE *acpi_res) { struct lookup_irq_request req; ACPI_STATUS status; req.acpi_res = acpi_res; req.res = res; req.counter = 0; req.rid = rid; req.found = 0; status = AcpiWalkResources(acpi_get_handle(dev), "_CRS", acpi_lookup_irq_handler, &req); if (ACPI_SUCCESS(status) && req.found == 0) status = AE_NOT_FOUND; return (status); } void acpi_config_intr(device_t dev, ACPI_RESOURCE *res) { u_int irq; int pol, trig; switch (res->Id) { case ACPI_RSTYPE_IRQ: KASSERT(res->Data.Irq.NumberOfInterrupts == 1, ("%s: multiple interrupts", __func__)); irq = res->Data.Irq.Interrupts[0]; trig = res->Data.Irq.EdgeLevel; pol = res->Data.Irq.ActiveHighLow; break; case ACPI_RSTYPE_EXT_IRQ: KASSERT(res->Data.ExtendedIrq.NumberOfInterrupts == 1, ("%s: multiple interrupts", __func__)); irq = res->Data.ExtendedIrq.Interrupts[0]; trig = res->Data.ExtendedIrq.EdgeLevel; pol = res->Data.ExtendedIrq.ActiveHighLow; break; default: panic("%s: bad resource type %u", __func__, res->Id); } BUS_CONFIG_INTR(dev, irq, (trig == ACPI_EDGE_SENSITIVE) ? INTR_TRIGGER_EDGE : INTR_TRIGGER_LEVEL, (pol == ACPI_ACTIVE_HIGH) ? INTR_POLARITY_HIGH : INTR_POLARITY_LOW); } /* * Fetch a device's resources and associate them with the device. * * Note that it might be nice to also locate ACPI-specific resource items, such * as GPE bits. * * We really need to split the resource-fetching code out from the * resource-parsing code, since we may want to use the parsing * code for _PRS someday. */ ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle, struct acpi_parse_resource_set *set, void *arg) { ACPI_BUFFER buf; ACPI_RESOURCE *res; char *curr, *last; ACPI_STATUS status; void *context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* * Special-case some devices that abuse _PRS/_CRS to mean * something other than "I consume this resource". * * XXX do we really need this? It's only relevant once * we start always-allocating these resources, and even * then, the only special-cased device is likely to be * the PCI interrupt link. */ /* Fetch the device's current resources. */ buf.Length = ACPI_ALLOCATE_BUFFER; if (ACPI_FAILURE((status = AcpiGetCurrentResources(handle, &buf)))) { if (status != AE_NOT_FOUND) printf("can't fetch resources for %s - %s\n", acpi_name(handle), AcpiFormatException(status)); return_ACPI_STATUS (status); } ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "%s - got %ld bytes of resources\n", acpi_name(handle), (long)buf.Length)); set->set_init(dev, arg, &context); /* Iterate through the resources */ curr = buf.Pointer; last = (char *)buf.Pointer + buf.Length; while (curr < last) { res = (ACPI_RESOURCE *)curr; curr += res->Length; /* Handle the individual resource types */ switch(res->Id) { case ACPI_RSTYPE_END_TAG: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "EndTag\n")); curr = last; break; case ACPI_RSTYPE_FIXED_IO: if (res->Data.FixedIo.RangeLength <= 0) break; ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedIo 0x%x/%d\n", res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength)); set->set_ioport(dev, context, res->Data.FixedIo.BaseAddress, res->Data.FixedIo.RangeLength); break; case ACPI_RSTYPE_IO: if (res->Data.Io.RangeLength <= 0) break; if (res->Data.Io.MinBaseAddress == res->Data.Io.MaxBaseAddress) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength)); set->set_ioport(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.RangeLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x-0x%x/%d\n", res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress, res->Data.Io.RangeLength)); set->set_iorange(dev, context, res->Data.Io.MinBaseAddress, res->Data.Io.MaxBaseAddress, res->Data.Io.RangeLength, res->Data.Io.Alignment); } break; case ACPI_RSTYPE_FIXED_MEM32: if (res->Data.FixedMemory32.RangeLength <= 0) break; ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedMemory32 0x%x/%d\n", res->Data.FixedMemory32.RangeBaseAddress, res->Data.FixedMemory32.RangeLength)); set->set_memory(dev, context, res->Data.FixedMemory32.RangeBaseAddress, res->Data.FixedMemory32.RangeLength); break; case ACPI_RSTYPE_MEM32: if (res->Data.Memory32.RangeLength <= 0) break; if (res->Data.Memory32.MinBaseAddress == res->Data.Memory32.MaxBaseAddress) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x/%d\n", res->Data.Memory32.MinBaseAddress, res->Data.Memory32.RangeLength)); set->set_memory(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.RangeLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x-0x%x/%d\n", res->Data.Memory32.MinBaseAddress, res->Data.Memory32.MaxBaseAddress, res->Data.Memory32.RangeLength)); set->set_memoryrange(dev, context, res->Data.Memory32.MinBaseAddress, res->Data.Memory32.MaxBaseAddress, res->Data.Memory32.RangeLength, res->Data.Memory32.Alignment); } break; case ACPI_RSTYPE_MEM24: if (res->Data.Memory24.RangeLength <= 0) break; if (res->Data.Memory24.MinBaseAddress == res->Data.Memory24.MaxBaseAddress) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x/%d\n", res->Data.Memory24.MinBaseAddress, res->Data.Memory24.RangeLength)); set->set_memory(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.RangeLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x-0x%x/%d\n", res->Data.Memory24.MinBaseAddress, res->Data.Memory24.MaxBaseAddress, res->Data.Memory24.RangeLength)); set->set_memoryrange(dev, context, res->Data.Memory24.MinBaseAddress, res->Data.Memory24.MaxBaseAddress, res->Data.Memory24.RangeLength, res->Data.Memory24.Alignment); } break; case ACPI_RSTYPE_IRQ: /* * from 1.0b 6.4.2 * "This structure is repeated for each separate interrupt * required" */ set->set_irq(dev, context, res->Data.Irq.Interrupts, res->Data.Irq.NumberOfInterrupts, res->Data.Irq.EdgeLevel, res->Data.Irq.ActiveHighLow); break; case ACPI_RSTYPE_DMA: /* * from 1.0b 6.4.3 * "This structure is repeated for each separate dma channel * required" */ set->set_drq(dev, context, res->Data.Dma.Channels, res->Data.Dma.NumberOfChannels); break; case ACPI_RSTYPE_START_DPF: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "start dependant functions\n")); set->set_start_dependant(dev, context, res->Data.StartDpf.CompatibilityPriority); break; case ACPI_RSTYPE_END_DPF: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "end dependant functions\n")); set->set_end_dependant(dev, context); break; case ACPI_RSTYPE_ADDRESS32: if (res->Data.Address32.AddressLength <= 0) break; if (res->Data.Address32.ProducerConsumer != ACPI_CONSUMER) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored Address32 %s producer\n", res->Data.Address32.ResourceType == ACPI_IO_RANGE ? "IO" : "Memory")); break; } if (res->Data.Address32.ResourceType != ACPI_MEMORY_RANGE && res->Data.Address32.ResourceType != ACPI_IO_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored Address32 for non-memory, non-I/O\n")); break; } if (res->Data.Address32.MinAddressFixed == ACPI_ADDRESS_FIXED && res->Data.Address32.MaxAddressFixed == ACPI_ADDRESS_FIXED) { if (res->Data.Address32.ResourceType == ACPI_MEMORY_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address32/Memory 0x%x/%d\n", res->Data.Address32.MinAddressRange, res->Data.Address32.AddressLength)); set->set_memory(dev, context, res->Data.Address32.MinAddressRange, res->Data.Address32.AddressLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address32/IO 0x%x/%d\n", res->Data.Address32.MinAddressRange, res->Data.Address32.AddressLength)); set->set_ioport(dev, context, res->Data.Address32.MinAddressRange, res->Data.Address32.AddressLength); } } else { if (res->Data.Address32.ResourceType == ACPI_MEMORY_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address32/Memory 0x%x-0x%x/%d\n", res->Data.Address32.MinAddressRange, res->Data.Address32.MaxAddressRange, res->Data.Address32.AddressLength)); set->set_memoryrange(dev, context, res->Data.Address32.MinAddressRange, res->Data.Address32.MaxAddressRange, res->Data.Address32.AddressLength, res->Data.Address32.Granularity); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address32/IO 0x%x-0x%x/%d\n", res->Data.Address32.MinAddressRange, res->Data.Address32.MaxAddressRange, res->Data.Address32.AddressLength)); set->set_iorange(dev, context, res->Data.Address32.MinAddressRange, res->Data.Address32.MaxAddressRange, res->Data.Address32.AddressLength, res->Data.Address32.Granularity); } } break; case ACPI_RSTYPE_ADDRESS16: if (res->Data.Address16.AddressLength <= 0) break; if (res->Data.Address16.ProducerConsumer != ACPI_CONSUMER) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored Address16 %s producer\n", res->Data.Address16.ResourceType == ACPI_IO_RANGE ? "IO" : "Memory")); break; } if (res->Data.Address16.ResourceType != ACPI_MEMORY_RANGE && res->Data.Address16.ResourceType != ACPI_IO_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored Address16 for non-memory, non-I/O\n")); break; } if (res->Data.Address16.MinAddressFixed == ACPI_ADDRESS_FIXED && res->Data.Address16.MaxAddressFixed == ACPI_ADDRESS_FIXED) { if (res->Data.Address16.ResourceType == ACPI_MEMORY_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address16/Memory 0x%x/%d\n", res->Data.Address16.MinAddressRange, res->Data.Address16.AddressLength)); set->set_memory(dev, context, res->Data.Address16.MinAddressRange, res->Data.Address16.AddressLength); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address16/IO 0x%x/%d\n", res->Data.Address16.MinAddressRange, res->Data.Address16.AddressLength)); set->set_ioport(dev, context, res->Data.Address16.MinAddressRange, res->Data.Address16.AddressLength); } } else { if (res->Data.Address16.ResourceType == ACPI_MEMORY_RANGE) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address16/Memory 0x%x-0x%x/%d\n", res->Data.Address16.MinAddressRange, res->Data.Address16.MaxAddressRange, res->Data.Address16.AddressLength)); set->set_memoryrange(dev, context, res->Data.Address16.MinAddressRange, res->Data.Address16.MaxAddressRange, res->Data.Address16.AddressLength, res->Data.Address16.Granularity); } else { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Address16/IO 0x%x-0x%x/%d\n", res->Data.Address16.MinAddressRange, res->Data.Address16.MaxAddressRange, res->Data.Address16.AddressLength)); set->set_iorange(dev, context, res->Data.Address16.MinAddressRange, res->Data.Address16.MaxAddressRange, res->Data.Address16.AddressLength, res->Data.Address16.Granularity); } } break; case ACPI_RSTYPE_ADDRESS64: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "unimplemented Address64 resource\n")); break; case ACPI_RSTYPE_EXT_IRQ: if (res->Data.ExtendedIrq.ProducerConsumer != ACPI_CONSUMER) { ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored ExtIRQ producer\n")); break; } set->set_irq(dev, context,res->Data.ExtendedIrq.Interrupts, res->Data.ExtendedIrq.NumberOfInterrupts, res->Data.ExtendedIrq.EdgeLevel, res->Data.ExtendedIrq.ActiveHighLow); break; case ACPI_RSTYPE_VENDOR: ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "unimplemented VendorSpecific resource\n")); break; default: break; } } AcpiOsFree(buf.Pointer); set->set_done(dev, context); return_ACPI_STATUS (AE_OK); } /* * Resource-set vectors used to attach _CRS-derived resources * to an ACPI device. */ static void acpi_res_set_init(device_t dev, void *arg, void **context); static void acpi_res_set_done(device_t dev, void *context); static void acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length); static void acpi_res_set_iorange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align); static void acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length); static void acpi_res_set_memoryrange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align); static void acpi_res_set_irq(device_t dev, void *context, u_int32_t *irq, int count, int trig, int pol); static void acpi_res_set_drq(device_t dev, void *context, u_int32_t *drq, int count); static void acpi_res_set_start_dependant(device_t dev, void *context, int preference); static void acpi_res_set_end_dependant(device_t dev, void *context); struct acpi_parse_resource_set acpi_res_parse_set = { acpi_res_set_init, acpi_res_set_done, acpi_res_set_ioport, acpi_res_set_iorange, acpi_res_set_memory, acpi_res_set_memoryrange, acpi_res_set_irq, acpi_res_set_drq, acpi_res_set_start_dependant, acpi_res_set_end_dependant }; struct acpi_res_context { int ar_nio; int ar_nmem; int ar_nirq; int ar_ndrq; void *ar_parent; }; static void acpi_res_set_init(device_t dev, void *arg, void **context) { struct acpi_res_context *cp; if ((cp = AcpiOsAllocate(sizeof(*cp))) != NULL) { bzero(cp, sizeof(*cp)); cp->ar_parent = arg; *context = cp; } } static void acpi_res_set_done(device_t dev, void *context) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; AcpiOsFree(cp); } static void acpi_res_set_ioport(device_t dev, void *context, u_int32_t base, u_int32_t length) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, base, length); } static void acpi_res_set_iorange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; device_printf(dev, "I/O range not supported\n"); } static void acpi_res_set_memory(device_t dev, void *context, u_int32_t base, u_int32_t length) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; bus_set_resource(dev, SYS_RES_MEMORY, cp->ar_nmem++, base, length); } static void acpi_res_set_memoryrange(device_t dev, void *context, u_int32_t low, u_int32_t high, u_int32_t length, u_int32_t align) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; device_printf(dev, "memory range not supported\n"); } static void acpi_res_set_irq(device_t dev, void *context, u_int32_t *irq, int count, int trig, int pol) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL || irq == NULL) return; /* This implements no resource relocation. */ if (count != 1) return; bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, *irq, 1); } static void acpi_res_set_drq(device_t dev, void *context, u_int32_t *drq, int count) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL || drq == NULL) return; /* This implements no resource relocation. */ if (count != 1) return; bus_set_resource(dev, SYS_RES_DRQ, cp->ar_ndrq++, *drq, 1); } static void acpi_res_set_start_dependant(device_t dev, void *context, int preference) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; device_printf(dev, "dependant functions not supported\n"); } static void acpi_res_set_end_dependant(device_t dev, void *context) { struct acpi_res_context *cp = (struct acpi_res_context *)context; if (cp == NULL) return; device_printf(dev, "dependant functions not supported\n"); } /* * Resource-owning placeholders for IO and memory pseudo-devices. * * This code allocates system resources that will be used by ACPI * child devices. The acpi parent manages these resources through a * private rman. */ static int acpi_sysres_rid = 100; static int acpi_sysres_probe(device_t dev); static int acpi_sysres_attach(device_t dev); static device_method_t acpi_sysres_methods[] = { /* Device interface */ DEVMETHOD(device_probe, acpi_sysres_probe), DEVMETHOD(device_attach, acpi_sysres_attach), {0, 0} }; static driver_t acpi_sysres_driver = { "acpi_sysresource", acpi_sysres_methods, 0, }; static devclass_t acpi_sysres_devclass; DRIVER_MODULE(acpi_sysresource, acpi, acpi_sysres_driver, acpi_sysres_devclass, 0, 0); MODULE_DEPEND(acpi_sysresource, acpi, 1, 1, 1); static int acpi_sysres_probe(device_t dev) { static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; if (acpi_disabled("sysresource") || ACPI_ID_PROBE(device_get_parent(dev), dev, sysres_ids) == NULL) return (ENXIO); device_set_desc(dev, "System Resource"); device_quiet(dev); - return (-100); + return (BUS_PROBE_DEFAULT); } static int acpi_sysres_attach(device_t dev) { device_t bus; struct resource_list_entry *bus_rle, *dev_rle; struct resource_list *bus_rl, *dev_rl; int done, type; u_long start, end, count; /* * Loop through all current resources to see if the new one overlaps * any existing ones. If so, grow the old one up and/or down * accordingly. Discard any that are wholly contained in the old. If * the resource is unique, add it to the parent. It will later go into * the rman pool. */ bus = device_get_parent(dev); dev_rl = BUS_GET_RESOURCE_LIST(bus, dev); bus_rl = BUS_GET_RESOURCE_LIST(device_get_parent(bus), bus); STAILQ_FOREACH(dev_rle, dev_rl, link) { if (dev_rle->type != SYS_RES_IOPORT && dev_rle->type != SYS_RES_MEMORY) continue; start = dev_rle->start; end = dev_rle->end; count = dev_rle->count; type = dev_rle->type; done = FALSE; STAILQ_FOREACH(bus_rle, bus_rl, link) { if (bus_rle->type != type) continue; /* New resource wholly contained in old, discard. */ if (start >= bus_rle->start && end <= bus_rle->end) break; /* New tail overlaps old head, grow existing resource downward. */ if (start < bus_rle->start && end >= bus_rle->start) { bus_rle->count += bus_rle->start - start; bus_rle->start = start; done = TRUE; } /* New head overlaps old tail, grow existing resource upward. */ if (start <= bus_rle->end && end > bus_rle->end) { bus_rle->count += end - bus_rle->end; bus_rle->end = end; done = TRUE; } /* If we adjusted the old resource, we're finished. */ if (done) break; } /* If we didn't merge with anything, add this resource. */ if (bus_rle == NULL) bus_set_resource(bus, type, acpi_sysres_rid++, start, count); } /* After merging/moving resources to the parent, free the list. */ resource_list_free(dev_rl); return (0); } Index: stable/6/sys/dev/acpica/acpi_thermal.c =================================================================== --- stable/6/sys/dev/acpica/acpi_thermal.c (revision 159525) +++ stable/6/sys/dev/acpica/acpi_thermal.c (revision 159526) @@ -1,1086 +1,1086 @@ /*- * Copyright (c) 2000, 2001 Michael Smith * Copyright (c) 2000 BSDi * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_acpi.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include "cpufreq_if.h" #include #include /* Hooks for the ACPI CA debugging infrastructure */ #define _COMPONENT ACPI_THERMAL ACPI_MODULE_NAME("THERMAL") #define TZ_ZEROC 2732 #define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), (((x) - TZ_ZEROC) % 10) #define TZ_NOTIFY_TEMPERATURE 0x80 /* Temperature changed. */ #define TZ_NOTIFY_LEVELS 0x81 /* Cooling levels changed. */ #define TZ_NOTIFY_DEVICES 0x82 /* Device lists changed. */ #define TZ_NOTIFY_CRITICAL 0xcc /* Fake notify that _CRT/_HOT reached. */ /* Check for temperature changes every 10 seconds by default */ #define TZ_POLLRATE 10 /* Make sure the reported temperature is valid for this number of polls. */ #define TZ_VALIDCHECKS 3 /* Notify the user we will be shutting down in one more poll cycle. */ #define TZ_NOTIFYCOUNT (TZ_VALIDCHECKS - 1) /* ACPI spec defines this */ #define TZ_NUMLEVELS 10 struct acpi_tz_zone { int ac[TZ_NUMLEVELS]; ACPI_BUFFER al[TZ_NUMLEVELS]; int crt; int hot; ACPI_BUFFER psl; int psv; int tc1; int tc2; int tsp; int tzp; }; struct acpi_tz_softc { device_t tz_dev; ACPI_HANDLE tz_handle; /*Thermal zone handle*/ int tz_temperature; /*Current temperature*/ int tz_active; /*Current active cooling*/ #define TZ_ACTIVE_NONE -1 int tz_requested; /*Minimum active cooling*/ int tz_thflags; /*Current temp-related flags*/ #define TZ_THFLAG_NONE 0 #define TZ_THFLAG_PSV (1<<0) #define TZ_THFLAG_HOT (1<<2) #define TZ_THFLAG_CRT (1<<3) int tz_flags; #define TZ_FLAG_NO_SCP (1<<0) /*No _SCP method*/ #define TZ_FLAG_GETPROFILE (1<<1) /*Get power_profile in timeout*/ #define TZ_FLAG_GETSETTINGS (1<<2) /*Get devs/setpoints*/ struct timespec tz_cooling_started; /*Current cooling starting time*/ struct sysctl_ctx_list tz_sysctl_ctx; struct sysctl_oid *tz_sysctl_tree; eventhandler_tag tz_event; struct acpi_tz_zone tz_zone; /*Thermal zone parameters*/ int tz_validchecks; /* passive cooling */ struct proc *tz_cooling_proc; int tz_cooling_proc_running; int tz_cooling_enabled; int tz_cooling_active; int tz_cooling_updated; int tz_cooling_saved_freq; }; #define CPUFREQ_MAX_LEVELS 64 /* XXX cpufreq should export this */ static int acpi_tz_probe(device_t dev); static int acpi_tz_attach(device_t dev); static int acpi_tz_establish(struct acpi_tz_softc *sc); static void acpi_tz_monitor(void *Context); static void acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg); static void acpi_tz_switch_cooler_on(ACPI_OBJECT *obj, void *arg); static void acpi_tz_getparam(struct acpi_tz_softc *sc, char *node, int *data); static void acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what); static int acpi_tz_active_sysctl(SYSCTL_HANDLER_ARGS); static int acpi_tz_cooling_sysctl(SYSCTL_HANDLER_ARGS); static void acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context); static void acpi_tz_signal(struct acpi_tz_softc *sc, int flags); static void acpi_tz_timeout(struct acpi_tz_softc *sc, int flags); static void acpi_tz_power_profile(void *arg); static void acpi_tz_thread(void *arg); static int acpi_tz_cooling_is_available(struct acpi_tz_softc *sc); static int acpi_tz_cooling_thread_start(struct acpi_tz_softc *sc); static device_method_t acpi_tz_methods[] = { /* Device interface */ DEVMETHOD(device_probe, acpi_tz_probe), DEVMETHOD(device_attach, acpi_tz_attach), {0, 0} }; static driver_t acpi_tz_driver = { "acpi_tz", acpi_tz_methods, sizeof(struct acpi_tz_softc), }; static devclass_t acpi_tz_devclass; DRIVER_MODULE(acpi_tz, acpi, acpi_tz_driver, acpi_tz_devclass, 0, 0); MODULE_DEPEND(acpi_tz, acpi, 1, 1, 1); static struct sysctl_ctx_list acpi_tz_sysctl_ctx; static struct sysctl_oid *acpi_tz_sysctl_tree; /* Minimum cooling run time */ static int acpi_tz_min_runtime = 0; static int acpi_tz_polling_rate = TZ_POLLRATE; /* Timezone polling thread */ static struct proc *acpi_tz_proc; ACPI_LOCK_DECL(thermal, "ACPI thermal zone"); static int acpi_tz_probe(device_t dev) { int result; if (acpi_get_type(dev) == ACPI_TYPE_THERMAL && !acpi_disabled("thermal")) { device_set_desc(dev, "Thermal Zone"); result = -10; } else result = ENXIO; return (result); } static int acpi_tz_attach(device_t dev) { struct acpi_tz_softc *sc; struct acpi_softc *acpi_sc; int error; char oidname[8]; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); sc = device_get_softc(dev); sc->tz_dev = dev; sc->tz_handle = acpi_get_handle(dev); sc->tz_requested = TZ_ACTIVE_NONE; sc->tz_active = TZ_ACTIVE_NONE; sc->tz_thflags = TZ_THFLAG_NONE; sc->tz_cooling_proc = NULL; sc->tz_cooling_proc_running = FALSE; sc->tz_cooling_active = FALSE; sc->tz_cooling_updated = FALSE; /* * Always attempt to enable passive cooling for tz0. Users can enable * it for other zones manually for now. * * XXX We need to test if multiple zones conflict with each other * since cpufreq currently sets all CPUs to the given frequency whereas * it's possible for different thermal zones to specify independent * settings for multiple CPUs. */ sc->tz_cooling_enabled = (device_get_unit(dev) == 0); /* * Parse the current state of the thermal zone and build control * structures. We don't need to worry about interference with the * control thread since we haven't fully attached this device yet. */ if ((error = acpi_tz_establish(sc)) != 0) return (error); /* * Register for any Notify events sent to this zone. */ AcpiInstallNotifyHandler(sc->tz_handle, ACPI_DEVICE_NOTIFY, acpi_tz_notify_handler, sc); /* * Create our sysctl nodes. * * XXX we need a mechanism for adding nodes under ACPI. */ if (device_get_unit(dev) == 0) { acpi_sc = acpi_device_get_parent_softc(dev); sysctl_ctx_init(&acpi_tz_sysctl_ctx); acpi_tz_sysctl_tree = SYSCTL_ADD_NODE(&acpi_tz_sysctl_ctx, SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO, "thermal", CTLFLAG_RD, 0, ""); SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx, SYSCTL_CHILDREN(acpi_tz_sysctl_tree), - OID_AUTO, "min_runtime", CTLFLAG_RD | CTLFLAG_RW, + OID_AUTO, "min_runtime", CTLFLAG_RW, &acpi_tz_min_runtime, 0, "minimum cooling run time in sec"); SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx, SYSCTL_CHILDREN(acpi_tz_sysctl_tree), - OID_AUTO, "polling_rate", CTLFLAG_RD | CTLFLAG_RW, + OID_AUTO, "polling_rate", CTLFLAG_RW, &acpi_tz_polling_rate, 0, "monitor polling rate"); } sysctl_ctx_init(&sc->tz_sysctl_ctx); sprintf(oidname, "tz%d", device_get_unit(dev)); sc->tz_sysctl_tree = SYSCTL_ADD_NODE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(acpi_tz_sysctl_tree), OID_AUTO, oidname, CTLFLAG_RD, 0, ""); SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "temperature", CTLFLAG_RD, &sc->tz_temperature, sizeof(sc->tz_temperature), "IK", "current thermal zone temperature"); SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "active", CTLTYPE_INT | CTLFLAG_RW, sc, 0, acpi_tz_active_sysctl, "I", ""); SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "passive_cooling", CTLTYPE_INT | CTLFLAG_RW, sc, 0, acpi_tz_cooling_sysctl, "I", ""); SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "thermal_flags", CTLFLAG_RD, &sc->tz_thflags, 0, "thermal zone flags"); SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "_PSV", CTLFLAG_RD, &sc->tz_zone.psv, sizeof(sc->tz_zone.psv), "IK", ""); SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "_HOT", CTLFLAG_RD, &sc->tz_zone.hot, sizeof(sc->tz_zone.hot), "IK", ""); SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "_CRT", CTLFLAG_RD, &sc->tz_zone.crt, sizeof(sc->tz_zone.crt), "IK", ""); SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree), OID_AUTO, "_ACx", CTLFLAG_RD, &sc->tz_zone.ac, sizeof(sc->tz_zone.ac), "IK", ""); /* * Create thread to service all of the thermal zones. Register * our power profile event handler. */ sc->tz_event = EVENTHANDLER_REGISTER(power_profile_change, acpi_tz_power_profile, sc, 0); if (acpi_tz_proc == NULL) { error = kthread_create(acpi_tz_thread, NULL, &acpi_tz_proc, RFHIGHPID, 0, "acpi_thermal"); if (error != 0) { device_printf(sc->tz_dev, "could not create thread - %d", error); goto out; } } /* Create a thread to handle passive cooling for each zone if enabled. */ if (sc->tz_cooling_enabled) { if (acpi_tz_cooling_is_available(sc)) { error = acpi_tz_cooling_thread_start(sc); if (error != 0) { sc->tz_cooling_enabled = FALSE; goto out; } } else sc->tz_cooling_enabled = FALSE; } /* * Flag the event handler for a manual invocation by our timeout. * We defer it like this so that the rest of the subsystem has time * to come up. Don't bother evaluating/printing the temperature at * this point; on many systems it'll be bogus until the EC is running. */ sc->tz_flags |= TZ_FLAG_GETPROFILE; out: if (error != 0) { EVENTHANDLER_DEREGISTER(power_profile_change, sc->tz_event); AcpiRemoveNotifyHandler(sc->tz_handle, ACPI_DEVICE_NOTIFY, acpi_tz_notify_handler); sysctl_ctx_free(&sc->tz_sysctl_ctx); } return_VALUE (error); } /* * Parse the current state of this thermal zone and set up to use it. * * Note that we may have previous state, which will have to be discarded. */ static int acpi_tz_establish(struct acpi_tz_softc *sc) { ACPI_OBJECT *obj; int i; char nbuf[8]; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); /* Erase any existing state. */ for (i = 0; i < TZ_NUMLEVELS; i++) if (sc->tz_zone.al[i].Pointer != NULL) AcpiOsFree(sc->tz_zone.al[i].Pointer); if (sc->tz_zone.psl.Pointer != NULL) AcpiOsFree(sc->tz_zone.psl.Pointer); /* * XXX: We initialize only ACPI_BUFFER to avoid race condition * with passive cooling thread which refers psv, tc1, tc2 and tsp. */ bzero(sc->tz_zone.ac, sizeof(sc->tz_zone.ac)); bzero(sc->tz_zone.al, sizeof(sc->tz_zone.al)); bzero(&sc->tz_zone.psl, sizeof(sc->tz_zone.psl)); /* Evaluate thermal zone parameters. */ for (i = 0; i < TZ_NUMLEVELS; i++) { sprintf(nbuf, "_AC%d", i); acpi_tz_getparam(sc, nbuf, &sc->tz_zone.ac[i]); sprintf(nbuf, "_AL%d", i); sc->tz_zone.al[i].Length = ACPI_ALLOCATE_BUFFER; sc->tz_zone.al[i].Pointer = NULL; AcpiEvaluateObject(sc->tz_handle, nbuf, NULL, &sc->tz_zone.al[i]); obj = (ACPI_OBJECT *)sc->tz_zone.al[i].Pointer; if (obj != NULL) { /* Should be a package containing a list of power objects */ if (obj->Type != ACPI_TYPE_PACKAGE) { device_printf(sc->tz_dev, "%s has unknown type %d, rejecting\n", nbuf, obj->Type); return_VALUE (ENXIO); } } } acpi_tz_getparam(sc, "_CRT", &sc->tz_zone.crt); acpi_tz_getparam(sc, "_HOT", &sc->tz_zone.hot); sc->tz_zone.psl.Length = ACPI_ALLOCATE_BUFFER; sc->tz_zone.psl.Pointer = NULL; AcpiEvaluateObject(sc->tz_handle, "_PSL", NULL, &sc->tz_zone.psl); acpi_tz_getparam(sc, "_PSV", &sc->tz_zone.psv); acpi_tz_getparam(sc, "_TC1", &sc->tz_zone.tc1); acpi_tz_getparam(sc, "_TC2", &sc->tz_zone.tc2); acpi_tz_getparam(sc, "_TSP", &sc->tz_zone.tsp); acpi_tz_getparam(sc, "_TZP", &sc->tz_zone.tzp); /* * Sanity-check the values we've been given. * * XXX what do we do about systems that give us the same value for * more than one of these setpoints? */ acpi_tz_sanity(sc, &sc->tz_zone.crt, "_CRT"); acpi_tz_sanity(sc, &sc->tz_zone.hot, "_HOT"); acpi_tz_sanity(sc, &sc->tz_zone.psv, "_PSV"); for (i = 0; i < TZ_NUMLEVELS; i++) acpi_tz_sanity(sc, &sc->tz_zone.ac[i], "_ACx"); return_VALUE (0); } static char *aclevel_string[] = { "NONE", "_AC0", "_AC1", "_AC2", "_AC3", "_AC4", "_AC5", "_AC6", "_AC7", "_AC8", "_AC9" }; static __inline const char * acpi_tz_aclevel_string(int active) { if (active < -1 || active >= TZ_NUMLEVELS) return (aclevel_string[0]); return (aclevel_string[active + 1]); } /* * Get the current temperature. */ static int acpi_tz_get_temperature(struct acpi_tz_softc *sc) { int temp; ACPI_STATUS status; ACPI_FUNCTION_NAME ("acpi_tz_get_temperature"); status = acpi_GetInteger(sc->tz_handle, "_TMP", &temp); if (ACPI_FAILURE(status)) { ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "error fetching current temperature -- %s\n", AcpiFormatException(status)); return (FALSE); } ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "got %d.%dC\n", TZ_KELVTOC(temp))); sc->tz_temperature = temp; return (TRUE); } /* * Evaluate the condition of a thermal zone, take appropriate actions. */ static void acpi_tz_monitor(void *Context) { struct acpi_tz_softc *sc; struct timespec curtime; int temp; int i; int newactive, newflags; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); sc = (struct acpi_tz_softc *)Context; /* Get the current temperature. */ if (!acpi_tz_get_temperature(sc)) { /* XXX disable zone? go to max cooling? */ return_VOID; } temp = sc->tz_temperature; /* * Work out what we ought to be doing right now. * * Note that the _ACx levels sort from hot to cold. */ newactive = TZ_ACTIVE_NONE; for (i = TZ_NUMLEVELS - 1; i >= 0; i--) { if (sc->tz_zone.ac[i] != -1 && temp >= sc->tz_zone.ac[i]) { newactive = i; if (sc->tz_active != newactive) { ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "_AC%d: temperature %d.%d >= setpoint %d.%d\n", i, TZ_KELVTOC(temp), TZ_KELVTOC(sc->tz_zone.ac[i])); } } } /* * We are going to get _ACx level down (colder side), but give a guaranteed * minimum cooling run time if requested. */ if (acpi_tz_min_runtime > 0 && sc->tz_active != TZ_ACTIVE_NONE && (newactive == TZ_ACTIVE_NONE || newactive > sc->tz_active)) { getnanotime(&curtime); timespecsub(&curtime, &sc->tz_cooling_started); if (curtime.tv_sec < acpi_tz_min_runtime) newactive = sc->tz_active; } /* Handle user override of active mode */ if (sc->tz_requested != TZ_ACTIVE_NONE && sc->tz_requested < newactive) newactive = sc->tz_requested; /* update temperature-related flags */ newflags = TZ_THFLAG_NONE; if (sc->tz_zone.psv != -1 && temp >= sc->tz_zone.psv) newflags |= TZ_THFLAG_PSV; if (sc->tz_zone.hot != -1 && temp >= sc->tz_zone.hot) newflags |= TZ_THFLAG_HOT; if (sc->tz_zone.crt != -1 && temp >= sc->tz_zone.crt) newflags |= TZ_THFLAG_CRT; /* If the active cooling state has changed, we have to switch things. */ if (newactive != sc->tz_active) { /* Turn off the cooling devices that are on, if any are */ if (sc->tz_active != TZ_ACTIVE_NONE) acpi_ForeachPackageObject( (ACPI_OBJECT *)sc->tz_zone.al[sc->tz_active].Pointer, acpi_tz_switch_cooler_off, sc); /* Turn on cooling devices that are required, if any are */ if (newactive != TZ_ACTIVE_NONE) { acpi_ForeachPackageObject( (ACPI_OBJECT *)sc->tz_zone.al[newactive].Pointer, acpi_tz_switch_cooler_on, sc); } ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "switched from %s to %s: %d.%dC\n", acpi_tz_aclevel_string(sc->tz_active), acpi_tz_aclevel_string(newactive), TZ_KELVTOC(temp)); sc->tz_active = newactive; getnanotime(&sc->tz_cooling_started); } /* XXX (de)activate any passive cooling that may be required. */ /* * If the temperature is at _HOT or _CRT, increment our event count. * If it has occurred enough times, shutdown the system. This is * needed because some systems will report an invalid high temperature * for one poll cycle. It is suspected this is due to the embedded * controller timing out. A typical value is 138C for one cycle on * a system that is otherwise 65C. * * If we're almost at that threshold, notify the user through devd(8). */ if ((newflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT)) != 0) { sc->tz_validchecks++; if (sc->tz_validchecks == TZ_VALIDCHECKS) { device_printf(sc->tz_dev, "WARNING - current temperature (%d.%dC) exceeds safe limits\n", TZ_KELVTOC(sc->tz_temperature)); shutdown_nice(RB_POWEROFF); } else if (sc->tz_validchecks == TZ_NOTIFYCOUNT) acpi_UserNotify("Thermal", sc->tz_handle, TZ_NOTIFY_CRITICAL); } else { sc->tz_validchecks = 0; } sc->tz_thflags = newflags; return_VOID; } /* * Given an object, verify that it's a reference to a device of some sort, * and try to switch it off. */ static void acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg) { ACPI_HANDLE cooler; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); cooler = acpi_GetReference(NULL, obj); if (cooler == NULL) { ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "can't get handle\n")); return_VOID; } ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s off\n", acpi_name(cooler))); acpi_pwr_switch_consumer(cooler, ACPI_STATE_D3); return_VOID; } /* * Given an object, verify that it's a reference to a device of some sort, * and try to switch it on. * * XXX replication of off/on function code is bad. */ static void acpi_tz_switch_cooler_on(ACPI_OBJECT *obj, void *arg) { struct acpi_tz_softc *sc = (struct acpi_tz_softc *)arg; ACPI_HANDLE cooler; ACPI_STATUS status; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); cooler = acpi_GetReference(NULL, obj); if (cooler == NULL) { ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "can't get handle\n")); return_VOID; } ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s on\n", acpi_name(cooler))); status = acpi_pwr_switch_consumer(cooler, ACPI_STATE_D0); if (ACPI_FAILURE(status)) { ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "failed to activate %s - %s\n", acpi_name(cooler), AcpiFormatException(status)); } return_VOID; } /* * Read/debug-print a parameter, default it to -1. */ static void acpi_tz_getparam(struct acpi_tz_softc *sc, char *node, int *data) { ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); if (ACPI_FAILURE(acpi_GetInteger(sc->tz_handle, node, data))) { *data = -1; } else { ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "%s.%s = %d\n", acpi_name(sc->tz_handle), node, *data)); } return_VOID; } /* * Sanity-check a temperature value. Assume that setpoints * should be between 0C and 150C. */ static void acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what) { if (*val != -1 && (*val < TZ_ZEROC || *val > TZ_ZEROC + 1500)) { device_printf(sc->tz_dev, "%s value is absurd, ignored (%d.%dC)\n", what, TZ_KELVTOC(*val)); *val = -1; } } /* * Respond to a sysctl on the active state node. */ static int acpi_tz_active_sysctl(SYSCTL_HANDLER_ARGS) { struct acpi_tz_softc *sc; int active; int error; sc = (struct acpi_tz_softc *)oidp->oid_arg1; active = sc->tz_active; error = sysctl_handle_int(oidp, &active, 0, req); /* Error or no new value */ if (error != 0 || req->newptr == NULL) return (error); if (active < -1 || active >= TZ_NUMLEVELS) return (EINVAL); /* Set new preferred level and re-switch */ sc->tz_requested = active; acpi_tz_signal(sc, 0); return (0); } static int acpi_tz_cooling_sysctl(SYSCTL_HANDLER_ARGS) { struct acpi_tz_softc *sc; int enabled, error; sc = (struct acpi_tz_softc *)oidp->oid_arg1; enabled = sc->tz_cooling_enabled; error = sysctl_handle_int(oidp, &enabled, 0, req); /* Error or no new value */ if (error != 0 || req->newptr == NULL) return (error); if (enabled != TRUE && enabled != FALSE) return (EINVAL); if (enabled) { if (acpi_tz_cooling_is_available(sc)) error = acpi_tz_cooling_thread_start(sc); else error = ENODEV; if (error) enabled = FALSE; } sc->tz_cooling_enabled = enabled; return (error); } static void acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) { struct acpi_tz_softc *sc = (struct acpi_tz_softc *)context; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); switch (notify) { case TZ_NOTIFY_TEMPERATURE: /* Temperature change occurred */ acpi_tz_signal(sc, 0); break; case TZ_NOTIFY_DEVICES: case TZ_NOTIFY_LEVELS: /* Zone devices/setpoints changed */ acpi_tz_signal(sc, TZ_FLAG_GETSETTINGS); break; default: ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "unknown Notify event 0x%x\n", notify); break; } acpi_UserNotify("Thermal", h, notify); return_VOID; } static void acpi_tz_signal(struct acpi_tz_softc *sc, int flags) { ACPI_LOCK(thermal); sc->tz_flags |= flags; ACPI_UNLOCK(thermal); wakeup(&acpi_tz_proc); } /* * Notifies can be generated asynchronously but have also been seen to be * triggered by other thermal methods. One system generates a notify of * 0x81 when the fan is turned on or off. Another generates it when _SCP * is called. To handle these situations, we check the zone via * acpi_tz_monitor() before evaluating changes to setpoints or the cooling * policy. */ static void acpi_tz_timeout(struct acpi_tz_softc *sc, int flags) { /* Check the current temperature and take action based on it */ acpi_tz_monitor(sc); /* If requested, get the power profile settings. */ if (flags & TZ_FLAG_GETPROFILE) acpi_tz_power_profile(sc); /* * If requested, check for new devices/setpoints. After finding them, * check if we need to switch fans based on the new values. */ if (flags & TZ_FLAG_GETSETTINGS) { acpi_tz_establish(sc); acpi_tz_monitor(sc); } /* XXX passive cooling actions? */ } /* * System power profile may have changed; fetch and notify the * thermal zone accordingly. * * Since this can be called from an arbitrary eventhandler, it needs * to get the ACPI lock itself. */ static void acpi_tz_power_profile(void *arg) { ACPI_STATUS status; struct acpi_tz_softc *sc = (struct acpi_tz_softc *)arg; int state; state = power_profile_get_state(); if (state != POWER_PROFILE_PERFORMANCE && state != POWER_PROFILE_ECONOMY) return; /* check that we haven't decided there's no _SCP method */ if ((sc->tz_flags & TZ_FLAG_NO_SCP) == 0) { /* Call _SCP to set the new profile */ status = acpi_SetInteger(sc->tz_handle, "_SCP", (state == POWER_PROFILE_PERFORMANCE) ? 0 : 1); if (ACPI_FAILURE(status)) { if (status != AE_NOT_FOUND) ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "can't evaluate %s._SCP - %s\n", acpi_name(sc->tz_handle), AcpiFormatException(status)); sc->tz_flags |= TZ_FLAG_NO_SCP; } else { /* We have to re-evaluate the entire zone now */ acpi_tz_signal(sc, TZ_FLAG_GETSETTINGS); } } } /* * Thermal zone monitor thread. */ static void acpi_tz_thread(void *arg) { device_t *devs; int devcount, i; int flags; struct acpi_tz_softc **sc; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); devs = NULL; devcount = 0; sc = NULL; for (;;) { /* If the number of devices has changed, re-evaluate. */ if (devclass_get_maxunit(acpi_tz_devclass) != devcount) { if (devs != NULL) { free(devs, M_TEMP); free(sc, M_TEMP); } devclass_get_devices(acpi_tz_devclass, &devs, &devcount); sc = malloc(sizeof(struct acpi_tz_softc *) * devcount, M_TEMP, M_WAITOK | M_ZERO); for (i = 0; i < devcount; i++) sc[i] = device_get_softc(devs[i]); } /* Check for temperature events and act on them. */ for (i = 0; i < devcount; i++) { ACPI_LOCK(thermal); flags = sc[i]->tz_flags; sc[i]->tz_flags &= TZ_FLAG_NO_SCP; ACPI_UNLOCK(thermal); acpi_tz_timeout(sc[i], flags); } /* If more work to do, don't go to sleep yet. */ ACPI_LOCK(thermal); for (i = 0; i < devcount; i++) { if (sc[i]->tz_flags & ~TZ_FLAG_NO_SCP) break; } /* * If we have no more work, sleep for a while, setting PDROP so that * the mutex will not be reacquired. Otherwise, drop the mutex and * loop to handle more events. */ if (i == devcount) msleep(&acpi_tz_proc, &thermal_mutex, PZERO | PDROP, "tzpoll", hz * acpi_tz_polling_rate); else ACPI_UNLOCK(thermal); } } static int acpi_tz_cpufreq_restore(struct acpi_tz_softc *sc) { device_t dev; int error; if (!sc->tz_cooling_updated) return (0); if ((dev = devclass_get_device(devclass_find("cpufreq"), 0)) == NULL) return (ENXIO); ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "temperature %d.%dC: resuming previous clock speed (%d MHz)\n", TZ_KELVTOC(sc->tz_temperature), sc->tz_cooling_saved_freq); error = CPUFREQ_SET(dev, NULL, CPUFREQ_PRIO_KERN); if (error == 0) sc->tz_cooling_updated = FALSE; return (error); } static int acpi_tz_cpufreq_update(struct acpi_tz_softc *sc, int req) { device_t dev; struct cf_level *levels; int num_levels, error, freq, desired_freq, perf, i; levels = malloc(CPUFREQ_MAX_LEVELS * sizeof(*levels), M_TEMP, M_NOWAIT); if (levels == NULL) return (ENOMEM); /* * Find the main device, cpufreq0. We don't yet support independent * CPU frequency control on SMP. */ if ((dev = devclass_get_device(devclass_find("cpufreq"), 0)) == NULL) { error = ENXIO; goto out; } /* Get the current frequency. */ error = CPUFREQ_GET(dev, &levels[0]); if (error) goto out; freq = levels[0].total_set.freq; /* Get the current available frequency levels. */ num_levels = CPUFREQ_MAX_LEVELS; error = CPUFREQ_LEVELS(dev, levels, &num_levels); if (error) { if (error == E2BIG) printf("cpufreq: need to increase CPUFREQ_MAX_LEVELS\n"); goto out; } /* Calculate the desired frequency as a percent of the max frequency. */ perf = 100 * freq / levels[0].total_set.freq - req; if (perf < 0) perf = 0; else if (perf > 100) perf = 100; desired_freq = levels[0].total_set.freq * perf / 100; if (desired_freq < freq) { /* Find the closest available frequency, rounding down. */ for (i = 0; i < num_levels; i++) if (levels[i].total_set.freq <= desired_freq) break; /* If we didn't find a relevant setting, use the lowest. */ if (i == num_levels) i--; } else { /* If we didn't decrease frequency yet, don't increase it. */ if (!sc->tz_cooling_updated) { sc->tz_cooling_active = FALSE; goto out; } /* Use saved cpu frequency as maximum value. */ if (desired_freq > sc->tz_cooling_saved_freq) desired_freq = sc->tz_cooling_saved_freq; /* Find the closest available frequency, rounding up. */ for (i = num_levels - 1; i >= 0; i--) if (levels[i].total_set.freq >= desired_freq) break; /* If we didn't find a relevant setting, use the highest. */ if (i == -1) i++; /* If we're going to the highest frequency, restore the old setting. */ if (i == 0 || desired_freq == sc->tz_cooling_saved_freq) { error = acpi_tz_cpufreq_restore(sc); if (error == 0) sc->tz_cooling_active = FALSE; goto out; } } /* If we are going to a new frequency, activate it. */ if (levels[i].total_set.freq != freq) { ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev), "temperature %d.%dC: %screasing clock speed " "from %d MHz to %d MHz\n", TZ_KELVTOC(sc->tz_temperature), (freq > levels[i].total_set.freq) ? "de" : "in", freq, levels[i].total_set.freq); error = CPUFREQ_SET(dev, &levels[i], CPUFREQ_PRIO_KERN); if (error == 0 && !sc->tz_cooling_updated) { sc->tz_cooling_saved_freq = freq; sc->tz_cooling_updated = TRUE; } } out: if (levels) free(levels, M_TEMP); return (error); } /* * Passive cooling thread; monitors current temperature according to the * cooling interval and calculates whether to scale back CPU frequency. */ static void acpi_tz_cooling_thread(void *arg) { struct acpi_tz_softc *sc; int error, perf, curr_temp, prev_temp; ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); sc = (struct acpi_tz_softc *)arg; prev_temp = sc->tz_temperature; while (sc->tz_cooling_enabled) { if (sc->tz_cooling_active) (void)acpi_tz_get_temperature(sc); curr_temp = sc->tz_temperature; if (curr_temp >= sc->tz_zone.psv) sc->tz_cooling_active = TRUE; if (sc->tz_cooling_active) { perf = sc->tz_zone.tc1 * (curr_temp - prev_temp) + sc->tz_zone.tc2 * (curr_temp - sc->tz_zone.psv); perf /= 10; if (perf != 0) { error = acpi_tz_cpufreq_update(sc, perf); /* * If error and not simply a higher priority setting was * active, disable cooling. */ if (error != 0 && error != EPERM) { device_printf(sc->tz_dev, "failed to set new freq, disabling passive cooling\n"); sc->tz_cooling_enabled = FALSE; } } } prev_temp = curr_temp; tsleep(&sc->tz_cooling_proc, PZERO, "cooling", hz * sc->tz_zone.tsp / 10); } if (sc->tz_cooling_active) { acpi_tz_cpufreq_restore(sc); sc->tz_cooling_active = FALSE; } sc->tz_cooling_proc = NULL; ACPI_LOCK(thermal); sc->tz_cooling_proc_running = FALSE; ACPI_UNLOCK(thermal); kthread_exit(0); } /* * TODO: We ignore _PSL (list of cooling devices) since cpufreq enumerates * all CPUs for us. However, it's possible in the future _PSL will * reference non-CPU devices so we may want to support it then. */ static int acpi_tz_cooling_is_available(struct acpi_tz_softc *sc) { return (sc->tz_zone.tc1 != -1 && sc->tz_zone.tc2 != -1 && sc->tz_zone.tsp != -1 && sc->tz_zone.tsp != 0 && sc->tz_zone.psv != -1); } static int acpi_tz_cooling_thread_start(struct acpi_tz_softc *sc) { int error; char name[16]; ACPI_LOCK(thermal); if (sc->tz_cooling_proc_running) { ACPI_UNLOCK(thermal); return (0); } sc->tz_cooling_proc_running = TRUE; ACPI_UNLOCK(thermal); error = 0; if (sc->tz_cooling_proc == NULL) { snprintf(name, sizeof(name), "acpi_cooling%d", device_get_unit(sc->tz_dev)); error = kthread_create(acpi_tz_cooling_thread, sc, &sc->tz_cooling_proc, RFHIGHPID, 0, name); if (error != 0) { device_printf(sc->tz_dev, "could not create thread - %d", error); ACPI_LOCK(thermal); sc->tz_cooling_proc_running = FALSE; ACPI_UNLOCK(thermal); } } return (error); } Index: stable/6/sys/dev/acpica/acpivar.h =================================================================== --- stable/6/sys/dev/acpica/acpivar.h (revision 159525) +++ stable/6/sys/dev/acpica/acpivar.h (revision 159526) @@ -1,428 +1,428 @@ /*- * Copyright (c) 2000 Mitsuru IWASAKI * Copyright (c) 2000 Michael Smith * Copyright (c) 2000 BSDi * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _ACPIVAR_H_ #define _ACPIVAR_H_ #ifdef _KERNEL #include "acpi_if.h" #include "bus_if.h" #include #include #include #include #include #include #include #include struct acpi_softc { device_t acpi_dev; struct cdev *acpi_dev_t; struct resource *acpi_irq; int acpi_irq_rid; void *acpi_irq_handle; int acpi_enabled; int acpi_sstate; int acpi_sleep_disabled; struct sysctl_ctx_list acpi_sysctl_ctx; struct sysctl_oid *acpi_sysctl_tree; int acpi_power_button_sx; int acpi_sleep_button_sx; int acpi_lid_switch_sx; int acpi_standby_sx; int acpi_suspend_sx; int acpi_sleep_delay; int acpi_s4bios; - int acpi_disable_on_poweroff; + int acpi_do_disable; int acpi_verbose; bus_dma_tag_t acpi_waketag; bus_dmamap_t acpi_wakemap; vm_offset_t acpi_wakeaddr; vm_paddr_t acpi_wakephys; }; struct acpi_device { /* ACPI ivars */ ACPI_HANDLE ad_handle; int ad_magic; void *ad_private; int ad_flags; /* Resources */ struct resource_list ad_rl; }; #define ACPI_PRW_MAX_POWERRES 8 struct acpi_prw_data { ACPI_HANDLE gpe_handle; int gpe_bit; int lowest_wake; ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES]; int power_res_count; }; /* Flags for each device defined in the AML namespace. */ #define ACPI_FLAG_WAKE_ENABLED 0x1 /* Macros for extracting parts of a PCI address from an _ADR value. */ #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16) #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff) /* * Entry points to ACPI from above are global functions defined in this * file, sysctls, and I/O on the control device. Entry points from below * are interrupts (the SCI), notifies, task queue threads, and the thermal * zone polling thread. * * ACPI tables and global shared data are protected by a global lock * (acpi_mutex). * * Each ACPI device can have its own driver-specific mutex for protecting * shared access to local data. The ACPI_LOCK macros handle mutexes. * * Drivers that need to serialize access to functions (e.g., to route * interrupts, get/set control paths, etc.) should use the sx lock macros * (ACPI_SERIAL). * * ACPI-CA handles its own locking and should not be called with locks held. * * The most complicated path is: * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE */ extern struct mtx acpi_mutex; #define ACPI_LOCK(sys) mtx_lock(&sys##_mutex) #define ACPI_UNLOCK(sys) mtx_unlock(&sys##_mutex) #define ACPI_LOCK_ASSERT(sys) mtx_assert(&sys##_mutex, MA_OWNED); #define ACPI_LOCK_DECL(sys, name) \ static struct mtx sys##_mutex; \ MTX_SYSINIT(sys##_mutex, &sys##_mutex, name, MTX_DEF) #define ACPI_SERIAL_BEGIN(sys) sx_xlock(&sys##_sxlock) #define ACPI_SERIAL_END(sys) sx_xunlock(&sys##_sxlock) #define ACPI_SERIAL_ASSERT(sys) sx_assert(&sys##_sxlock, SX_XLOCKED); #define ACPI_SERIAL_DECL(sys, name) \ static struct sx sys##_sxlock; \ SX_SYSINIT(sys##_sxlock, &sys##_sxlock, name) /* * ACPI CA does not define layers for non-ACPI CA drivers. * We define some here within the range provided. */ #define ACPI_AC_ADAPTER 0x00010000 #define ACPI_BATTERY 0x00020000 #define ACPI_BUS 0x00040000 #define ACPI_BUTTON 0x00080000 #define ACPI_EC 0x00100000 #define ACPI_FAN 0x00200000 #define ACPI_POWERRES 0x00400000 #define ACPI_PROCESSOR 0x00800000 #define ACPI_THERMAL 0x01000000 #define ACPI_TIMER 0x02000000 #define ACPI_OEM 0x04000000 /* * Constants for different interrupt models used with acpi_SetIntrModel(). */ #define ACPI_INTR_PIC 0 #define ACPI_INTR_APIC 1 #define ACPI_INTR_SAPIC 2 /* * Various features and capabilities for the acpi_get_features() method. * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods. * See the Intel document titled "Processor Driver Capabilities Bit * Definitions", number 302223-002. */ #define ACPI_CAP_PERF_MSRS (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */ #define ACPI_CAP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */ #define ACPI_CAP_THR_MSRS (1 << 2) /* Intel OnDemand throttling MSRs */ #define ACPI_CAP_SMP_SAME (1 << 3) /* MP C1, Px, and Tx (all the same) */ #define ACPI_CAP_SMP_SAME_C3 (1 << 4) /* MP C2 and C3 (all the same) */ #define ACPI_CAP_SMP_DIFF_PX (1 << 5) /* MP Px (different, using _PSD) */ #define ACPI_CAP_SMP_DIFF_CX (1 << 6) /* MP Cx (different, using _CSD) */ #define ACPI_CAP_SMP_DIFF_TX (1 << 7) /* MP Tx (different, using _TSD) */ #define ACPI_CAP_SMP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */ /* * Quirk flags. * * ACPI_Q_BROKEN: Disables all ACPI support. * ACPI_Q_TIMER: Disables support for the ACPI timer. * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the * first APIC and that the MADT should force that by ignoring the PC-AT * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2. */ extern int acpi_quirks; #define ACPI_Q_OK 0 #define ACPI_Q_BROKEN (1 << 0) #define ACPI_Q_TIMER (1 << 1) #define ACPI_Q_MADT_IRQ0 (1 << 2) /* * Note that the low ivar values are reserved to provide * interface compatibility with ISA drivers which can also * attach to ACPI. */ #define ACPI_IVAR_HANDLE 0x100 #define ACPI_IVAR_MAGIC 0x101 #define ACPI_IVAR_PRIVATE 0x102 #define ACPI_IVAR_FLAGS 0x103 /* * Accessor functions for our ivars. Default value for BUS_READ_IVAR is * (type) 0. The accessor functions don't check return values. */ #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \ \ static __inline type varp ## _get_ ## var(device_t dev) \ { \ uintptr_t v = 0; \ BUS_READ_IVAR(device_get_parent(dev), dev, \ ivarp ## _IVAR_ ## ivar, &v); \ return ((type) v); \ } \ \ static __inline void varp ## _set_ ## var(device_t dev, type t) \ { \ uintptr_t v = (uintptr_t) t; \ BUS_WRITE_IVAR(device_get_parent(dev), dev, \ ivarp ## _IVAR_ ## ivar, v); \ } __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE) __ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, int) __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *) __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int) void acpi_fake_objhandler(ACPI_HANDLE h, UINT32 fn, void *data); static __inline device_t acpi_get_device(ACPI_HANDLE handle) { void *dev = NULL; AcpiGetData(handle, acpi_fake_objhandler, &dev); return ((device_t)dev); } static __inline ACPI_OBJECT_TYPE acpi_get_type(device_t dev) { ACPI_HANDLE h; ACPI_OBJECT_TYPE t; if ((h = acpi_get_handle(dev)) == NULL) return (ACPI_TYPE_NOT_FOUND); if (AcpiGetType(h, &t) != AE_OK) return (ACPI_TYPE_NOT_FOUND); return (t); } #ifdef ACPI_DEBUGGER void acpi_EnterDebugger(void); #endif #ifdef ACPI_DEBUG #include #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0) #else #define STEP(x) #endif #define ACPI_VPRINT(dev, acpi_sc, x...) do { \ if (acpi_get_verbose(acpi_sc)) \ device_printf(dev, x); \ } while (0) /* Values for the device _STA (status) method. */ #define ACPI_STA_PRESENT (1 << 0) #define ACPI_STA_ENABLED (1 << 1) #define ACPI_STA_SHOW_IN_UI (1 << 2) #define ACPI_STA_FUNCTIONAL (1 << 3) #define ACPI_STA_BATT_PRESENT (1 << 4) #define ACPI_DEVINFO_PRESENT(x, flags) \ (((x) & (flags)) == (flags)) #define ACPI_DEVICE_PRESENT(x) \ ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL) #define ACPI_BATTERY_PRESENT(x) \ ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \ ACPI_STA_BATT_PRESENT) BOOLEAN acpi_DeviceIsPresent(device_t dev); BOOLEAN acpi_BatteryIsPresent(device_t dev); ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, ACPI_HANDLE *result); uint32_t acpi_TimerDelta(uint32_t end, uint32_t start); ACPI_BUFFER *acpi_AllocBuffer(int size); ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, UINT32 *number); ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path, UINT32 *number); ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path, UINT32 number); ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj, void (*func)(ACPI_OBJECT *comp, void *arg), void *arg); ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, ACPI_RESOURCE **resp); ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf, ACPI_RESOURCE *res); ACPI_STATUS acpi_OverrideInterruptLevel(UINT32 InterruptNumber); ACPI_STATUS acpi_SetIntrModel(int model); ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state); int acpi_wake_init(device_t dev, int type); int acpi_wake_set_enable(device_t dev, int enable); int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw); ACPI_STATUS acpi_Startup(void); void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, uint8_t notify); int acpi_bus_alloc_gas(device_t dev, int *type, int *rid, ACPI_GENERIC_ADDRESS *gas, struct resource **res); struct acpi_parse_resource_set { void (*set_init)(device_t dev, void *arg, void **context); void (*set_done)(device_t dev, void *context); void (*set_ioport)(device_t dev, void *context, uint32_t base, uint32_t length); void (*set_iorange)(device_t dev, void *context, uint32_t low, uint32_t high, uint32_t length, uint32_t align); void (*set_memory)(device_t dev, void *context, uint32_t base, uint32_t length); void (*set_memoryrange)(device_t dev, void *context, uint32_t low, uint32_t high, uint32_t length, uint32_t align); void (*set_irq)(device_t dev, void *context, u_int32_t *irq, int count, int trig, int pol); void (*set_drq)(device_t dev, void *context, u_int32_t *drq, int count); void (*set_start_dependant)(device_t dev, void *context, int preference); void (*set_end_dependant)(device_t dev, void *context); }; extern struct acpi_parse_resource_set acpi_res_parse_set; void acpi_config_intr(device_t dev, ACPI_RESOURCE *res); ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid, struct resource *res, ACPI_RESOURCE *acpi_res); ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle, struct acpi_parse_resource_set *set, void *arg); /* ACPI event handling */ UINT32 acpi_event_power_button_sleep(void *context); UINT32 acpi_event_power_button_wake(void *context); UINT32 acpi_event_sleep_button_sleep(void *context); UINT32 acpi_event_sleep_button_wake(void *context); #define ACPI_EVENT_PRI_FIRST 0 #define ACPI_EVENT_PRI_DEFAULT 10000 #define ACPI_EVENT_PRI_LAST 20000 typedef void (*acpi_event_handler_t)(void *, int); EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t); EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t); /* Device power control. */ ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable); ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state); /* Misc. */ static __inline struct acpi_softc * acpi_device_get_parent_softc(device_t child) { device_t parent; parent = device_get_parent(child); if (parent == NULL) return (NULL); return (device_get_softc(parent)); } static __inline int acpi_get_verbose(struct acpi_softc *sc) { if (sc) return (sc->acpi_verbose); return (0); } char *acpi_name(ACPI_HANDLE handle); int acpi_avoid(ACPI_HANDLE handle); int acpi_disabled(char *subsys); int acpi_machdep_init(device_t dev); void acpi_install_wakeup_handler(struct acpi_softc *sc); int acpi_sleep_machdep(struct acpi_softc *sc, int state); int acpi_table_quirks(int *quirks); int acpi_machdep_quirks(int *quirks); /* Battery Abstraction. */ struct acpi_battinfo; int acpi_battery_register(device_t dev); int acpi_battery_remove(device_t dev); int acpi_battery_get_units(void); int acpi_battery_get_info_expire(void); int acpi_battery_bst_valid(struct acpi_bst *bst); int acpi_battery_bif_valid(struct acpi_bif *bif); int acpi_battery_get_battinfo(device_t dev, struct acpi_battinfo *info); /* Embedded controller. */ void acpi_ec_ecdt_probe(device_t); /* AC adapter interface. */ int acpi_acad_get_acline(int *); /* Package manipulation convenience functions. */ #define ACPI_PKG_VALID(pkg, size) \ ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \ (pkg)->Package.Count >= (size)) int acpi_PkgInt(ACPI_OBJECT *res, int idx, ACPI_INTEGER *dst); int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst); int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size); int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type, int *rid, struct resource **dst); ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj); /* Default number of task queue threads to start. */ #define ACPI_MAX_THREADS 3 /* Use the device logging level for ktr(4). */ #define KTR_ACPI KTR_DEV #endif /* _KERNEL */ #endif /* !_ACPIVAR_H_ */