11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * acpi_bus.h - ACPI Bus Driver ($Revision: 22 $) 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> 51da177e4SLinus Torvalds * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 101da177e4SLinus Torvalds * it under the terms of the GNU General Public License as published by 111da177e4SLinus Torvalds * the Free Software Foundation; either version 2 of the License, or (at 121da177e4SLinus Torvalds * your option) any later version. 131da177e4SLinus Torvalds * 141da177e4SLinus Torvalds * This program is distributed in the hope that it will be useful, but 151da177e4SLinus Torvalds * WITHOUT ANY WARRANTY; without even the implied warranty of 161da177e4SLinus Torvalds * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 171da177e4SLinus Torvalds * General Public License for more details. 181da177e4SLinus Torvalds * 191da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License along 201da177e4SLinus Torvalds * with this program; if not, write to the Free Software Foundation, Inc., 211da177e4SLinus Torvalds * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 221da177e4SLinus Torvalds * 231da177e4SLinus Torvalds * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 241da177e4SLinus Torvalds */ 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds #ifndef __ACPI_BUS_H__ 271da177e4SLinus Torvalds #define __ACPI_BUS_H__ 281da177e4SLinus Torvalds 295b327265SPatrick Mochel #include <linux/device.h> 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds /* TBD: Make dynamic */ 321da177e4SLinus Torvalds #define ACPI_MAX_HANDLES 10 331da177e4SLinus Torvalds struct acpi_handle_list { 341da177e4SLinus Torvalds u32 count; 351da177e4SLinus Torvalds acpi_handle handles[ACPI_MAX_HANDLES]; 361da177e4SLinus Torvalds }; 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds /* acpi_utils.h */ 391da177e4SLinus Torvalds acpi_status 404be44fcdSLen Brown acpi_extract_package(union acpi_object *package, 414be44fcdSLen Brown struct acpi_buffer *format, struct acpi_buffer *buffer); 421da177e4SLinus Torvalds acpi_status 434be44fcdSLen Brown acpi_evaluate_integer(acpi_handle handle, 441da177e4SLinus Torvalds acpi_string pathname, 4527663c58SMatthew Wilcox struct acpi_object_list *arguments, unsigned long long *data); 461da177e4SLinus Torvalds acpi_status 474be44fcdSLen Brown acpi_evaluate_reference(acpi_handle handle, 481da177e4SLinus Torvalds acpi_string pathname, 491da177e4SLinus Torvalds struct acpi_object_list *arguments, 501da177e4SLinus Torvalds struct acpi_handle_list *list); 51275c58d7SToshi Kani acpi_status 5205730c19SJiang Liu acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, 5305730c19SJiang Liu struct acpi_buffer *status_buf); 5405730c19SJiang Liu #ifdef ACPI_HOTPLUG_OST 5505730c19SJiang Liu #define acpi_evaluate_hotplug_ost acpi_evaluate_ost 5605730c19SJiang Liu #else 5705730c19SJiang Liu static inline acpi_status 58275c58d7SToshi Kani acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, 5905730c19SJiang Liu u32 status_code, struct acpi_buffer *status_buf) 6005730c19SJiang Liu { return AE_OK; } 6105730c19SJiang Liu #endif 621da177e4SLinus Torvalds 6338ac0f1bSMatthew Garrett acpi_status 648ede06abSFeng Tang acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); 65952c63e9SJiang Liu 66952c63e9SJiang Liu bool acpi_has_method(acpi_handle handle, char *name); 670db98202SJiang Liu acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, 680db98202SJiang Liu u64 arg); 697d2421f8SJiang Liu acpi_status acpi_evaluate_ej0(acpi_handle handle); 707d2421f8SJiang Liu acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); 71ebf4df8dSJiang Liu bool acpi_ata_match(acpi_handle handle); 72ebf4df8dSJiang Liu bool acpi_bay_match(acpi_handle handle); 73ebf4df8dSJiang Liu bool acpi_dock_match(acpi_handle handle); 74952c63e9SJiang Liu 75a65ac520SJiang Liu bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); 76a65ac520SJiang Liu union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, 77a65ac520SJiang Liu int rev, int func, union acpi_object *argv4); 78a65ac520SJiang Liu 79a65ac520SJiang Liu static inline union acpi_object * 80a65ac520SJiang Liu acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, 81a65ac520SJiang Liu union acpi_object *argv4, acpi_object_type type) 82a65ac520SJiang Liu { 83a65ac520SJiang Liu union acpi_object *obj; 84a65ac520SJiang Liu 85a65ac520SJiang Liu obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); 86a65ac520SJiang Liu if (obj && obj->type != type) { 87a65ac520SJiang Liu ACPI_FREE(obj); 88a65ac520SJiang Liu obj = NULL; 89a65ac520SJiang Liu } 90a65ac520SJiang Liu 91a65ac520SJiang Liu return obj; 92a65ac520SJiang Liu } 93a65ac520SJiang Liu 94a65ac520SJiang Liu #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ 95a65ac520SJiang Liu { \ 96a65ac520SJiang Liu .package.type = ACPI_TYPE_PACKAGE, \ 97a65ac520SJiang Liu .package.count = (cnt), \ 98a65ac520SJiang Liu .package.elements = (eles) \ 99a65ac520SJiang Liu } 100a65ac520SJiang Liu 10176f58584SLen Brown #ifdef CONFIG_ACPI 1021da177e4SLinus Torvalds 1031da177e4SLinus Torvalds #include <linux/proc_fs.h> 1041da177e4SLinus Torvalds 1051da177e4SLinus Torvalds #define ACPI_BUS_FILE_ROOT "acpi" 1061da177e4SLinus Torvalds extern struct proc_dir_entry *acpi_root_dir; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds enum acpi_bus_device_type { 1091da177e4SLinus Torvalds ACPI_BUS_TYPE_DEVICE = 0, 1101da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER, 1111da177e4SLinus Torvalds ACPI_BUS_TYPE_PROCESSOR, 1121da177e4SLinus Torvalds ACPI_BUS_TYPE_THERMAL, 1131da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER_BUTTON, 1141da177e4SLinus Torvalds ACPI_BUS_TYPE_SLEEP_BUTTON, 1151da177e4SLinus Torvalds ACPI_BUS_DEVICE_TYPE_COUNT 1161da177e4SLinus Torvalds }; 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds struct acpi_driver; 1191da177e4SLinus Torvalds struct acpi_device; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds /* 122ca589f94SRafael J. Wysocki * ACPI Scan Handler 123ca589f94SRafael J. Wysocki * ----------------- 124ca589f94SRafael J. Wysocki */ 125ca589f94SRafael J. Wysocki 126a33ec399SRafael J. Wysocki struct acpi_hotplug_profile { 1273f8055c3SRafael J. Wysocki struct kobject kobj; 1283338db00SRafael J. Wysocki int (*scan_dependent)(struct acpi_device *adev); 129d22ddcbcSRafael J. Wysocki bool enabled:1; 130d22ddcbcSRafael J. Wysocki bool demand_offline:1; 131a33ec399SRafael J. Wysocki }; 132a33ec399SRafael J. Wysocki 1333f8055c3SRafael J. Wysocki static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( 1343f8055c3SRafael J. Wysocki struct kobject *kobj) 1353f8055c3SRafael J. Wysocki { 1363f8055c3SRafael J. Wysocki return container_of(kobj, struct acpi_hotplug_profile, kobj); 1373f8055c3SRafael J. Wysocki } 1383f8055c3SRafael J. Wysocki 139ca589f94SRafael J. Wysocki struct acpi_scan_handler { 140ca589f94SRafael J. Wysocki const struct acpi_device_id *ids; 141ca589f94SRafael J. Wysocki struct list_head list_node; 142ca589f94SRafael J. Wysocki int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); 143ca589f94SRafael J. Wysocki void (*detach)(struct acpi_device *dev); 144a33ec399SRafael J. Wysocki struct acpi_hotplug_profile hotplug; 145ca589f94SRafael J. Wysocki }; 146ca589f94SRafael J. Wysocki 147ca589f94SRafael J. Wysocki /* 1481da177e4SLinus Torvalds * ACPI Driver 1491da177e4SLinus Torvalds * ----------- 1501da177e4SLinus Torvalds */ 1511da177e4SLinus Torvalds 1521da177e4SLinus Torvalds typedef int (*acpi_op_add) (struct acpi_device * device); 15351fac838SRafael J. Wysocki typedef int (*acpi_op_remove) (struct acpi_device * device); 15446ec8598SBjorn Helgaas typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); 1551da177e4SLinus Torvalds 1561da177e4SLinus Torvalds struct acpi_device_ops { 1571da177e4SLinus Torvalds acpi_op_add add; 1581da177e4SLinus Torvalds acpi_op_remove remove; 15946ec8598SBjorn Helgaas acpi_op_notify notify; 1601da177e4SLinus Torvalds }; 1611da177e4SLinus Torvalds 1626d278131SBjorn Helgaas #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ 1636d278131SBjorn Helgaas 1641da177e4SLinus Torvalds struct acpi_driver { 1651da177e4SLinus Torvalds char name[80]; 1661da177e4SLinus Torvalds char class[80]; 1678c8eb78fSThomas Renninger const struct acpi_device_id *ids; /* Supported Hardware IDs */ 1686d278131SBjorn Helgaas unsigned int flags; 1691da177e4SLinus Torvalds struct acpi_device_ops ops; 170d43ec68eSPatrick Mochel struct device_driver drv; 1711890a97aSPatrick Mochel struct module *owner; 1721da177e4SLinus Torvalds }; 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds /* 1751da177e4SLinus Torvalds * ACPI Device 1761da177e4SLinus Torvalds * ----------- 1771da177e4SLinus Torvalds */ 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds /* Status (_STA) */ 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds struct acpi_device_status { 1821da177e4SLinus Torvalds u32 present:1; 1831da177e4SLinus Torvalds u32 enabled:1; 1841da177e4SLinus Torvalds u32 show_in_ui:1; 1851da177e4SLinus Torvalds u32 functional:1; 1861da177e4SLinus Torvalds u32 battery_present:1; 1871da177e4SLinus Torvalds u32 reserved:27; 1881da177e4SLinus Torvalds }; 1891da177e4SLinus Torvalds 1901da177e4SLinus Torvalds /* Flags */ 1911da177e4SLinus Torvalds 1921da177e4SLinus Torvalds struct acpi_device_flags { 1931da177e4SLinus Torvalds u32 dynamic_status:1; 1941da177e4SLinus Torvalds u32 removable:1; 1951da177e4SLinus Torvalds u32 ejectable:1; 1961da177e4SLinus Torvalds u32 power_manageable:1; 197209d3b17SRafael J. Wysocki u32 match_driver:1; 198202317a5SRafael J. Wysocki u32 initialized:1; 199202317a5SRafael J. Wysocki u32 visited:1; 200f244d8b6SRafael J. Wysocki u32 no_hotplug:1; 201d1badf8dSRafael J. Wysocki u32 reserved:24; 2021da177e4SLinus Torvalds }; 2031da177e4SLinus Torvalds 2041da177e4SLinus Torvalds /* File System */ 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds struct acpi_device_dir { 2071da177e4SLinus Torvalds struct proc_dir_entry *entry; 2081da177e4SLinus Torvalds }; 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds #define acpi_device_dir(d) ((d)->dir.entry) 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds /* Plug and Play */ 2131da177e4SLinus Torvalds 21424c5c4c2SZhao Yakui typedef char acpi_bus_id[8]; 2151da177e4SLinus Torvalds typedef unsigned long acpi_bus_address; 2161da177e4SLinus Torvalds typedef char acpi_device_name[40]; 2171da177e4SLinus Torvalds typedef char acpi_device_class[20]; 2181da177e4SLinus Torvalds 2197f47fa6cSBjorn Helgaas struct acpi_hardware_id { 2207f47fa6cSBjorn Helgaas struct list_head list; 2217f47fa6cSBjorn Helgaas char *id; 2227f47fa6cSBjorn Helgaas }; 2237f47fa6cSBjorn Helgaas 224d4e1a692SToshi Kani struct acpi_pnp_type { 225d4e1a692SToshi Kani u32 hardware_id:1; 226d4e1a692SToshi Kani u32 bus_address:1; 227d4e1a692SToshi Kani u32 reserved:30; 228d4e1a692SToshi Kani }; 229d4e1a692SToshi Kani 2301da177e4SLinus Torvalds struct acpi_device_pnp { 2311da177e4SLinus Torvalds acpi_bus_id bus_id; /* Object name */ 232d4e1a692SToshi Kani struct acpi_pnp_type type; /* ID type */ 2331da177e4SLinus Torvalds acpi_bus_address bus_address; /* _ADR */ 23415b8dd53SBob Moore char *unique_id; /* _UID */ 2357f47fa6cSBjorn Helgaas struct list_head ids; /* _HID and _CIDs */ 2361da177e4SLinus Torvalds acpi_device_name device_name; /* Driver-determined */ 2371da177e4SLinus Torvalds acpi_device_class device_class; /* " */ 238d1efe3c3SLance Ortiz union acpi_object *str_obj; /* unicode string for _STR method */ 239bb74ac23SYasuaki Ishimatsu unsigned long sun; /* _SUN */ 2401da177e4SLinus Torvalds }; 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds #define acpi_device_bid(d) ((d)->pnp.bus_id) 2431da177e4SLinus Torvalds #define acpi_device_adr(d) ((d)->pnp.bus_address) 244620e112cSThomas Renninger const char *acpi_device_hid(struct acpi_device *device); 2451da177e4SLinus Torvalds #define acpi_device_name(d) ((d)->pnp.device_name) 2461da177e4SLinus Torvalds #define acpi_device_class(d) ((d)->pnp.device_class) 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds /* Power Management */ 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds struct acpi_device_power_flags { 2511da177e4SLinus Torvalds u32 explicit_get:1; /* _PSC present? */ 2521da177e4SLinus Torvalds u32 power_resources:1; /* Power resources */ 2531da177e4SLinus Torvalds u32 inrush_current:1; /* Serialize Dx->D0 */ 2541da177e4SLinus Torvalds u32 power_removed:1; /* Optimize Dx->D0 */ 255644f17adSMika Westerberg u32 ignore_parent:1; /* Power is independent of parent power state */ 256644f17adSMika Westerberg u32 reserved:27; 2571da177e4SLinus Torvalds }; 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds struct acpi_device_power_state { 2601da177e4SLinus Torvalds struct { 2611da177e4SLinus Torvalds u8 valid:1; 2621399dfcdSAaron Lu u8 os_accessible:1; 2631da177e4SLinus Torvalds u8 explicit_set:1; /* _PSx present? */ 2641da177e4SLinus Torvalds u8 reserved:6; 2651da177e4SLinus Torvalds } flags; 2661da177e4SLinus Torvalds int power; /* % Power (compared to D0) */ 2671da177e4SLinus Torvalds int latency; /* Dx->D0 time (microseconds) */ 2680b224527SRafael J. Wysocki struct list_head resources; /* Power resources referenced */ 2691da177e4SLinus Torvalds }; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds struct acpi_device_power { 2721da177e4SLinus Torvalds int state; /* Current state */ 2731da177e4SLinus Torvalds struct acpi_device_power_flags flags; 274b4a03b9aSLin Ming struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ 2751da177e4SLinus Torvalds }; 2761da177e4SLinus Torvalds 2771da177e4SLinus Torvalds /* Performance Management */ 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds struct acpi_device_perf_flags { 2801da177e4SLinus Torvalds u8 reserved:8; 2811da177e4SLinus Torvalds }; 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds struct acpi_device_perf_state { 2841da177e4SLinus Torvalds struct { 2851da177e4SLinus Torvalds u8 valid:1; 2861da177e4SLinus Torvalds u8 reserved:7; 2871da177e4SLinus Torvalds } flags; 2881da177e4SLinus Torvalds u8 power; /* % Power (compared to P0) */ 2891da177e4SLinus Torvalds u8 performance; /* % Performance ( " ) */ 2901da177e4SLinus Torvalds int latency; /* Px->P0 time (microseconds) */ 2911da177e4SLinus Torvalds }; 2921da177e4SLinus Torvalds 2931da177e4SLinus Torvalds struct acpi_device_perf { 2941da177e4SLinus Torvalds int state; 2951da177e4SLinus Torvalds struct acpi_device_perf_flags flags; 2961da177e4SLinus Torvalds int state_count; 2971da177e4SLinus Torvalds struct acpi_device_perf_state *states; 2981da177e4SLinus Torvalds }; 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds /* Wakeup Management */ 3011da177e4SLinus Torvalds struct acpi_device_wakeup_flags { 3021da177e4SLinus Torvalds u8 valid:1; /* Can successfully enable wakeup? */ 3031da177e4SLinus Torvalds u8 run_wake:1; /* Run-Wake GPE devices */ 304b67ea761SRafael J. Wysocki u8 notifier_present:1; /* Wake-up notify handler has been installed */ 3051da177e4SLinus Torvalds }; 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds struct acpi_device_wakeup { 3081da177e4SLinus Torvalds acpi_handle gpe_device; 309439913ffSLin Ming u64 gpe_number; 310439913ffSLin Ming u64 sleep_state; 311993cbe59SRafael J. Wysocki struct list_head resources; 3121da177e4SLinus Torvalds struct acpi_device_wakeup_flags flags; 3139b83ccd2SRafael J. Wysocki int prepare_count; 3141da177e4SLinus Torvalds }; 3151da177e4SLinus Torvalds 3161033f904SLan Tianyu struct acpi_device_physical_node { 317007ccfcfSRafael J. Wysocki unsigned int node_id; 3181033f904SLan Tianyu struct list_head node; 3191033f904SLan Tianyu struct device *dev; 320683058e3SRafael J. Wysocki bool put_online:1; 3211033f904SLan Tianyu }; 3221da177e4SLinus Torvalds 3231033f904SLan Tianyu /* Device */ 3241da177e4SLinus Torvalds struct acpi_device { 325caaa6efbSBjorn Helgaas int device_type; 326caaa6efbSBjorn Helgaas acpi_handle handle; /* no handle for fixed hardware */ 3271da177e4SLinus Torvalds struct acpi_device *parent; 3281da177e4SLinus Torvalds struct list_head children; 3291da177e4SLinus Torvalds struct list_head node; 3301da177e4SLinus Torvalds struct list_head wakeup_list; 331d783156eSRafael J. Wysocki struct list_head del_list; 3321da177e4SLinus Torvalds struct acpi_device_status status; 3331da177e4SLinus Torvalds struct acpi_device_flags flags; 3341da177e4SLinus Torvalds struct acpi_device_pnp pnp; 3351da177e4SLinus Torvalds struct acpi_device_power power; 3361da177e4SLinus Torvalds struct acpi_device_wakeup wakeup; 3371da177e4SLinus Torvalds struct acpi_device_perf performance; 3381da177e4SLinus Torvalds struct acpi_device_dir dir; 339ca589f94SRafael J. Wysocki struct acpi_scan_handler *handler; 3401da177e4SLinus Torvalds struct acpi_driver *driver; 3411da177e4SLinus Torvalds void *driver_data; 3425b327265SPatrick Mochel struct device dev; 343007ccfcfSRafael J. Wysocki unsigned int physical_node_count; 3441033f904SLan Tianyu struct list_head physical_node_list; 3451033f904SLan Tianyu struct mutex physical_node_lock; 346b1c0f99bSRafael J. Wysocki void (*remove)(struct acpi_device *); 3471da177e4SLinus Torvalds }; 3481da177e4SLinus Torvalds 349db89b4f0SPavel Machek static inline void *acpi_driver_data(struct acpi_device *d) 350db89b4f0SPavel Machek { 351db89b4f0SPavel Machek return d->driver_data; 352db89b4f0SPavel Machek } 353db89b4f0SPavel Machek 354d43ec68eSPatrick Mochel #define to_acpi_device(d) container_of(d, struct acpi_device, dev) 355d43ec68eSPatrick Mochel #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) 3561da177e4SLinus Torvalds 35725db115bSRafael J. Wysocki static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) 35825db115bSRafael J. Wysocki { 35925db115bSRafael J. Wysocki *((u32 *)&adev->status) = sta; 36025db115bSRafael J. Wysocki } 36125db115bSRafael J. Wysocki 36255955aadSDavid Brownell /* acpi_device.dev.bus == &acpi_bus_type */ 36355955aadSDavid Brownell extern struct bus_type acpi_bus_type; 36455955aadSDavid Brownell 3651da177e4SLinus Torvalds /* 3661da177e4SLinus Torvalds * Events 3671da177e4SLinus Torvalds * ------ 3681da177e4SLinus Torvalds */ 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds struct acpi_bus_event { 3711da177e4SLinus Torvalds struct list_head node; 3721da177e4SLinus Torvalds acpi_device_class device_class; 3731da177e4SLinus Torvalds acpi_bus_id bus_id; 3741da177e4SLinus Torvalds u32 type; 3751da177e4SLinus Torvalds u32 data; 3761da177e4SLinus Torvalds }; 3771da177e4SLinus Torvalds 37899e0d2fcSGreg Kroah-Hartman extern struct kobject *acpi_kobj; 379962ce8caSZhang Rui extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); 3808e4319c4SBob Moore void acpi_bus_private_data_handler(acpi_handle, void *); 38120733939SZhang Rui int acpi_bus_get_private_data(acpi_handle, void **); 382f244d8b6SRafael J. Wysocki void acpi_bus_no_hotplug(acpi_handle handle); 3839ee85241SZhang Rui extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); 3849ee85241SZhang Rui extern int register_acpi_notifier(struct notifier_block *); 3859ee85241SZhang Rui extern int unregister_acpi_notifier(struct notifier_block *); 3866bd00a61SShaohua Li 3871da177e4SLinus Torvalds /* 3881da177e4SLinus Torvalds * External Functions 3891da177e4SLinus Torvalds */ 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); 392402ac536SBjorn Helgaas acpi_status acpi_bus_get_status_handle(acpi_handle handle, 393402ac536SBjorn Helgaas unsigned long long *sta); 3941da177e4SLinus Torvalds int acpi_bus_get_status(struct acpi_device *device); 3959ce4e607SRafael J. Wysocki 3961da177e4SLinus Torvalds int acpi_bus_set_power(acpi_handle handle, int state); 39796bfd3ceSRafael J. Wysocki const char *acpi_power_state_string(int state); 398ad0c3b0eSRafael J. Wysocki int acpi_device_get_power(struct acpi_device *device, int *state); 399078eb126SRafael J. Wysocki int acpi_device_set_power(struct acpi_device *device, int state); 4009ce4e607SRafael J. Wysocki int acpi_bus_init_power(struct acpi_device *device); 401b9e95fc6SRafael J. Wysocki int acpi_device_fix_up_power(struct acpi_device *device); 40225eed407SRafael J. Wysocki int acpi_bus_update_power(acpi_handle handle, int *state_p); 4033737b2b1SRafael J. Wysocki bool acpi_bus_power_manageable(acpi_handle handle); 404ec4602a9SRafael J. Wysocki 405ec4602a9SRafael J. Wysocki #ifdef CONFIG_PM 406eb9d0fe4SRafael J. Wysocki bool acpi_bus_can_wakeup(acpi_handle handle); 407ec4602a9SRafael J. Wysocki #else 408ec4602a9SRafael J. Wysocki static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } 409ec4602a9SRafael J. Wysocki #endif 4109ce4e607SRafael J. Wysocki 4113757b948SRafael J. Wysocki void acpi_scan_lock_acquire(void); 4123757b948SRafael J. Wysocki void acpi_scan_lock_release(void); 413ca589f94SRafael J. Wysocki int acpi_scan_add_handler(struct acpi_scan_handler *handler); 4141da177e4SLinus Torvalds int acpi_bus_register_driver(struct acpi_driver *driver); 41506ea8e08SBjorn Helgaas void acpi_bus_unregister_driver(struct acpi_driver *driver); 416b8bd759aSRafael J. Wysocki int acpi_bus_scan(acpi_handle handle); 417bfee26dbSRafael J. Wysocki void acpi_bus_trim(struct acpi_device *start); 418c8f7a62cSLen Brown acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); 4198c8eb78fSThomas Renninger int acpi_match_device_ids(struct acpi_device *device, 4208c8eb78fSThomas Renninger const struct acpi_device_id *ids); 4211da177e4SLinus Torvalds int acpi_create_dir(struct acpi_device *); 4221da177e4SLinus Torvalds void acpi_remove_dir(struct acpi_device *); 4231da177e4SLinus Torvalds 424202317a5SRafael J. Wysocki static inline bool acpi_device_enumerated(struct acpi_device *adev) 425202317a5SRafael J. Wysocki { 426202317a5SRafael J. Wysocki return adev && adev->flags.initialized && adev->flags.visited; 427202317a5SRafael J. Wysocki } 428202317a5SRafael J. Wysocki 4297b98118aSRafael J. Wysocki typedef void (*acpi_hp_callback)(void *data, u32 src); 4307b98118aSRafael J. Wysocki 4317b98118aSRafael J. Wysocki acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src); 4320d2cf8f5SMika Westerberg 4330d2cf8f5SMika Westerberg /** 4340d2cf8f5SMika Westerberg * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver 4350d2cf8f5SMika Westerberg * @__acpi_driver: acpi_driver struct 4360d2cf8f5SMika Westerberg * 4370d2cf8f5SMika Westerberg * Helper macro for ACPI drivers which do not do anything special in module 4380d2cf8f5SMika Westerberg * init/exit. This eliminates a lot of boilerplate. Each module may only 4390d2cf8f5SMika Westerberg * use this macro once, and calling it replaces module_init() and module_exit() 4400d2cf8f5SMika Westerberg */ 4410d2cf8f5SMika Westerberg #define module_acpi_driver(__acpi_driver) \ 4420d2cf8f5SMika Westerberg module_driver(__acpi_driver, acpi_bus_register_driver, \ 4430d2cf8f5SMika Westerberg acpi_bus_unregister_driver) 4440d2cf8f5SMika Westerberg 4454e10d12aSDavid Shaohua Li /* 4464e10d12aSDavid Shaohua Li * Bind physical devices with ACPI devices 4474e10d12aSDavid Shaohua Li */ 4484e10d12aSDavid Shaohua Li struct acpi_bus_type { 4494e10d12aSDavid Shaohua Li struct list_head list; 45053540098SRafael J. Wysocki const char *name; 45153540098SRafael J. Wysocki bool (*match)(struct device *dev); 452e3f02c52SRafael J. Wysocki struct acpi_device * (*find_companion)(struct device *); 45311909ca1SRafael J. Wysocki void (*setup)(struct device *); 45411909ca1SRafael J. Wysocki void (*cleanup)(struct device *); 4554e10d12aSDavid Shaohua Li }; 4564e10d12aSDavid Shaohua Li int register_acpi_bus_type(struct acpi_bus_type *); 4574e10d12aSDavid Shaohua Li int unregister_acpi_bus_type(struct acpi_bus_type *); 45822c13f9dSThomas Renninger 45976d56de5SAlex Chiang struct acpi_pci_root { 46076d56de5SAlex Chiang struct acpi_device * device; 46176d56de5SAlex Chiang struct pci_bus *bus; 46276d56de5SAlex Chiang u16 segment; 4636ad95513SBjorn Helgaas struct resource secondary; /* downstream bus range */ 46476d56de5SAlex Chiang 46576d56de5SAlex Chiang u32 osc_support_set; /* _OSC state of support bits */ 46676d56de5SAlex Chiang u32 osc_control_set; /* _OSC state of control bits */ 467f4b57a3bSJiang Liu phys_addr_t mcfg_addr; 46876d56de5SAlex Chiang }; 46976d56de5SAlex Chiang 4704e10d12aSDavid Shaohua Li /* helper */ 471d9fef0c4SRafael J. Wysocki 472d9fef0c4SRafael J. Wysocki struct acpi_device *acpi_find_child_device(struct acpi_device *parent, 473d9fef0c4SRafael J. Wysocki u64 address, bool check_children); 47427558203SAlexander Chiang int acpi_is_root_bridge(acpi_handle); 47576d56de5SAlex Chiang struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); 4764e10d12aSDavid Shaohua Li 477b67ea761SRafael J. Wysocki int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); 478b67ea761SRafael J. Wysocki int acpi_disable_wakeup_device_power(struct acpi_device *dev); 479b67ea761SRafael J. Wysocki 480aa338601SRafael J. Wysocki #ifdef CONFIG_PM 481ec2cd81cSRafael J. Wysocki acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 482ec2cd81cSRafael J. Wysocki acpi_notify_handler handler, void *context); 483ec2cd81cSRafael J. Wysocki acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, 484ec2cd81cSRafael J. Wysocki acpi_notify_handler handler); 485ee85f543SHuang Ying int acpi_pm_device_sleep_state(struct device *, int *, int); 486761afb86SRafael J. Wysocki #else 487ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 488ec2cd81cSRafael J. Wysocki acpi_notify_handler handler, 489ec2cd81cSRafael J. Wysocki void *context) 490ec2cd81cSRafael J. Wysocki { 491ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 492ec2cd81cSRafael J. Wysocki } 493ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, 494ec2cd81cSRafael J. Wysocki acpi_notify_handler handler) 495ec2cd81cSRafael J. Wysocki { 496ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 497ec2cd81cSRafael J. Wysocki } 498b25c77efSRafael J. Wysocki static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) 499296699deSRafael J. Wysocki { 500296699deSRafael J. Wysocki if (p) 501296699deSRafael J. Wysocki *p = ACPI_STATE_D0; 502b25c77efSRafael J. Wysocki 5038ad928d5SRafael J. Wysocki return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? 5048ad928d5SRafael J. Wysocki m : ACPI_STATE_D0; 505296699deSRafael J. Wysocki } 506761afb86SRafael J. Wysocki #endif 507761afb86SRafael J. Wysocki 508bdda27fbSRafael J. Wysocki #ifdef CONFIG_PM_RUNTIME 509dee8370cSRafael J. Wysocki int __acpi_device_run_wake(struct acpi_device *, bool); 510b24e5098SLin Ming int acpi_pm_device_run_wake(struct device *, bool); 511761afb86SRafael J. Wysocki #else 512dee8370cSRafael J. Wysocki static inline int __acpi_device_run_wake(struct acpi_device *adev, bool en) 513dee8370cSRafael J. Wysocki { 514dee8370cSRafael J. Wysocki return -ENODEV; 515dee8370cSRafael J. Wysocki } 516b24e5098SLin Ming static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) 517b24e5098SLin Ming { 518b24e5098SLin Ming return -ENODEV; 519b24e5098SLin Ming } 520296699deSRafael J. Wysocki #endif 521296699deSRafael J. Wysocki 522296699deSRafael J. Wysocki #ifdef CONFIG_PM_SLEEP 523dee8370cSRafael J. Wysocki int __acpi_device_sleep_wake(struct acpi_device *, u32, bool); 524296699deSRafael J. Wysocki int acpi_pm_device_sleep_wake(struct device *, bool); 525f7a1b860SDavid Howells #else 526dee8370cSRafael J. Wysocki static inline int __acpi_device_sleep_wake(struct acpi_device *adev, 527dee8370cSRafael J. Wysocki u32 target_state, bool enable) 528f7a1b860SDavid Howells { 529f7a1b860SDavid Howells return -ENODEV; 530761afb86SRafael J. Wysocki } 531fd4aff1aSShaohua Li static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) 53276f58584SLen Brown { 5331da177e4SLinus Torvalds return -ENODEV; 5341da177e4SLinus Torvalds } 5351da177e4SLinus Torvalds #endif 5361da177e4SLinus Torvalds 53799926a8cSDavid Rientjes #ifdef CONFIG_ACPI_SLEEP 53899926a8cSDavid Rientjes u32 acpi_target_system_state(void); 53999926a8cSDavid Rientjes #else 54099926a8cSDavid Rientjes static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } 54199926a8cSDavid Rientjes #endif 54299926a8cSDavid Rientjes 543078eb126SRafael J. Wysocki static inline bool acpi_device_power_manageable(struct acpi_device *adev) 544078eb126SRafael J. Wysocki { 545078eb126SRafael J. Wysocki return adev->flags.power_manageable; 546078eb126SRafael J. Wysocki } 547078eb126SRafael J. Wysocki 548078eb126SRafael J. Wysocki static inline bool acpi_device_can_wakeup(struct acpi_device *adev) 549078eb126SRafael J. Wysocki { 550078eb126SRafael J. Wysocki return adev->wakeup.flags.valid; 551078eb126SRafael J. Wysocki } 552078eb126SRafael J. Wysocki 5531399dfcdSAaron Lu static inline bool acpi_device_can_poweroff(struct acpi_device *adev) 5541399dfcdSAaron Lu { 5551399dfcdSAaron Lu return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; 5561399dfcdSAaron Lu } 5571399dfcdSAaron Lu 55866886d6fSMatthew Garrett #else /* CONFIG_ACPI */ 55966886d6fSMatthew Garrett 5607ae30986SLen Brown static inline int register_acpi_bus_type(void *bus) { return 0; } 5617ae30986SLen Brown static inline int unregister_acpi_bus_type(void *bus) { return 0; } 56266886d6fSMatthew Garrett 5631da177e4SLinus Torvalds #endif /* CONFIG_ACPI */ 5641da177e4SLinus Torvalds 5651da177e4SLinus Torvalds #endif /*__ACPI_BUS_H__*/ 566