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); 541da177e4SLinus Torvalds 5538ac0f1bSMatthew Garrett acpi_status 568ede06abSFeng Tang acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); 57952c63e9SJiang Liu 58952c63e9SJiang Liu bool acpi_has_method(acpi_handle handle, char *name); 590db98202SJiang Liu acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, 600db98202SJiang Liu u64 arg); 617d2421f8SJiang Liu acpi_status acpi_evaluate_ej0(acpi_handle handle); 627d2421f8SJiang Liu acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); 63ebf4df8dSJiang Liu bool acpi_ata_match(acpi_handle handle); 64ebf4df8dSJiang Liu bool acpi_bay_match(acpi_handle handle); 65ebf4df8dSJiang Liu bool acpi_dock_match(acpi_handle handle); 66952c63e9SJiang Liu 67a65ac520SJiang Liu bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); 68a65ac520SJiang Liu union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, 69a65ac520SJiang Liu int rev, int func, union acpi_object *argv4); 70a65ac520SJiang Liu 71a65ac520SJiang Liu static inline union acpi_object * 72a65ac520SJiang Liu acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, 73a65ac520SJiang Liu union acpi_object *argv4, acpi_object_type type) 74a65ac520SJiang Liu { 75a65ac520SJiang Liu union acpi_object *obj; 76a65ac520SJiang Liu 77a65ac520SJiang Liu obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); 78a65ac520SJiang Liu if (obj && obj->type != type) { 79a65ac520SJiang Liu ACPI_FREE(obj); 80a65ac520SJiang Liu obj = NULL; 81a65ac520SJiang Liu } 82a65ac520SJiang Liu 83a65ac520SJiang Liu return obj; 84a65ac520SJiang Liu } 85a65ac520SJiang Liu 86a65ac520SJiang Liu #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ 87a65ac520SJiang Liu { \ 88a65ac520SJiang Liu .package.type = ACPI_TYPE_PACKAGE, \ 89a65ac520SJiang Liu .package.count = (cnt), \ 90a65ac520SJiang Liu .package.elements = (eles) \ 91a65ac520SJiang Liu } 92a65ac520SJiang Liu 9376f58584SLen Brown #ifdef CONFIG_ACPI 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds #include <linux/proc_fs.h> 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds #define ACPI_BUS_FILE_ROOT "acpi" 981da177e4SLinus Torvalds extern struct proc_dir_entry *acpi_root_dir; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds enum acpi_bus_device_type { 1011da177e4SLinus Torvalds ACPI_BUS_TYPE_DEVICE = 0, 1021da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER, 1031da177e4SLinus Torvalds ACPI_BUS_TYPE_PROCESSOR, 1041da177e4SLinus Torvalds ACPI_BUS_TYPE_THERMAL, 1051da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER_BUTTON, 1061da177e4SLinus Torvalds ACPI_BUS_TYPE_SLEEP_BUTTON, 1071da177e4SLinus Torvalds ACPI_BUS_DEVICE_TYPE_COUNT 1081da177e4SLinus Torvalds }; 1091da177e4SLinus Torvalds 1101da177e4SLinus Torvalds struct acpi_driver; 1111da177e4SLinus Torvalds struct acpi_device; 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds /* 114ca589f94SRafael J. Wysocki * ACPI Scan Handler 115ca589f94SRafael J. Wysocki * ----------------- 116ca589f94SRafael J. Wysocki */ 117ca589f94SRafael J. Wysocki 118a33ec399SRafael J. Wysocki struct acpi_hotplug_profile { 1193f8055c3SRafael J. Wysocki struct kobject kobj; 1203338db00SRafael J. Wysocki int (*scan_dependent)(struct acpi_device *adev); 121d22ddcbcSRafael J. Wysocki bool enabled:1; 122d22ddcbcSRafael J. Wysocki bool demand_offline:1; 123a33ec399SRafael J. Wysocki }; 124a33ec399SRafael J. Wysocki 1253f8055c3SRafael J. Wysocki static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( 1263f8055c3SRafael J. Wysocki struct kobject *kobj) 1273f8055c3SRafael J. Wysocki { 1283f8055c3SRafael J. Wysocki return container_of(kobj, struct acpi_hotplug_profile, kobj); 1293f8055c3SRafael J. Wysocki } 1303f8055c3SRafael J. Wysocki 131ca589f94SRafael J. Wysocki struct acpi_scan_handler { 132ca589f94SRafael J. Wysocki const struct acpi_device_id *ids; 133ca589f94SRafael J. Wysocki struct list_head list_node; 134aca0a4ebSRafael J. Wysocki bool (*match)(char *idstr, const struct acpi_device_id **matchid); 135ca589f94SRafael J. Wysocki int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); 136ca589f94SRafael J. Wysocki void (*detach)(struct acpi_device *dev); 1379cb32acfSRafael J. Wysocki void (*bind)(struct device *phys_dev); 1389cb32acfSRafael J. Wysocki void (*unbind)(struct device *phys_dev); 139a33ec399SRafael J. Wysocki struct acpi_hotplug_profile hotplug; 140ca589f94SRafael J. Wysocki }; 141ca589f94SRafael J. Wysocki 142ca589f94SRafael J. Wysocki /* 1433c2cc7ffSRafael J. Wysocki * ACPI Hotplug Context 1443c2cc7ffSRafael J. Wysocki * -------------------- 1453c2cc7ffSRafael J. Wysocki */ 1463c2cc7ffSRafael J. Wysocki 1473c2cc7ffSRafael J. Wysocki struct acpi_hotplug_context { 1483c2cc7ffSRafael J. Wysocki struct acpi_device *self; 149be27b3dcSRafael J. Wysocki int (*notify)(struct acpi_device *, u32); 150be27b3dcSRafael J. Wysocki void (*uevent)(struct acpi_device *, u32); 15159b42fa0SRafael J. Wysocki void (*fixup)(struct acpi_device *); 1523c2cc7ffSRafael J. Wysocki }; 1533c2cc7ffSRafael J. Wysocki 1543c2cc7ffSRafael J. Wysocki /* 1551da177e4SLinus Torvalds * ACPI Driver 1561da177e4SLinus Torvalds * ----------- 1571da177e4SLinus Torvalds */ 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds typedef int (*acpi_op_add) (struct acpi_device * device); 16051fac838SRafael J. Wysocki typedef int (*acpi_op_remove) (struct acpi_device * device); 16146ec8598SBjorn Helgaas typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds struct acpi_device_ops { 1641da177e4SLinus Torvalds acpi_op_add add; 1651da177e4SLinus Torvalds acpi_op_remove remove; 16646ec8598SBjorn Helgaas acpi_op_notify notify; 1671da177e4SLinus Torvalds }; 1681da177e4SLinus Torvalds 1696d278131SBjorn Helgaas #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ 1706d278131SBjorn Helgaas 1711da177e4SLinus Torvalds struct acpi_driver { 1721da177e4SLinus Torvalds char name[80]; 1731da177e4SLinus Torvalds char class[80]; 1748c8eb78fSThomas Renninger const struct acpi_device_id *ids; /* Supported Hardware IDs */ 1756d278131SBjorn Helgaas unsigned int flags; 1761da177e4SLinus Torvalds struct acpi_device_ops ops; 177d43ec68eSPatrick Mochel struct device_driver drv; 1781890a97aSPatrick Mochel struct module *owner; 1791da177e4SLinus Torvalds }; 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds /* 1821da177e4SLinus Torvalds * ACPI Device 1831da177e4SLinus Torvalds * ----------- 1841da177e4SLinus Torvalds */ 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds /* Status (_STA) */ 1871da177e4SLinus Torvalds 1881da177e4SLinus Torvalds struct acpi_device_status { 1891da177e4SLinus Torvalds u32 present:1; 1901da177e4SLinus Torvalds u32 enabled:1; 1911da177e4SLinus Torvalds u32 show_in_ui:1; 1921da177e4SLinus Torvalds u32 functional:1; 1931da177e4SLinus Torvalds u32 battery_present:1; 1941da177e4SLinus Torvalds u32 reserved:27; 1951da177e4SLinus Torvalds }; 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds /* Flags */ 1981da177e4SLinus Torvalds 1991da177e4SLinus Torvalds struct acpi_device_flags { 2001da177e4SLinus Torvalds u32 dynamic_status:1; 2011da177e4SLinus Torvalds u32 removable:1; 2021da177e4SLinus Torvalds u32 ejectable:1; 2031da177e4SLinus Torvalds u32 power_manageable:1; 204209d3b17SRafael J. Wysocki u32 match_driver:1; 205202317a5SRafael J. Wysocki u32 initialized:1; 206202317a5SRafael J. Wysocki u32 visited:1; 2073c2cc7ffSRafael J. Wysocki u32 hotplug_notify:1; 2081e2380cdSRafael J. Wysocki u32 is_dock_station:1; 209f91ce35eSBjorn Helgaas u32 reserved:23; 2101da177e4SLinus Torvalds }; 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds /* File System */ 2131da177e4SLinus Torvalds 2141da177e4SLinus Torvalds struct acpi_device_dir { 2151da177e4SLinus Torvalds struct proc_dir_entry *entry; 2161da177e4SLinus Torvalds }; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds #define acpi_device_dir(d) ((d)->dir.entry) 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds /* Plug and Play */ 2211da177e4SLinus Torvalds 22224c5c4c2SZhao Yakui typedef char acpi_bus_id[8]; 2231da177e4SLinus Torvalds typedef unsigned long acpi_bus_address; 2241da177e4SLinus Torvalds typedef char acpi_device_name[40]; 2251da177e4SLinus Torvalds typedef char acpi_device_class[20]; 2261da177e4SLinus Torvalds 2277f47fa6cSBjorn Helgaas struct acpi_hardware_id { 2287f47fa6cSBjorn Helgaas struct list_head list; 2297f47fa6cSBjorn Helgaas char *id; 2307f47fa6cSBjorn Helgaas }; 2317f47fa6cSBjorn Helgaas 232d4e1a692SToshi Kani struct acpi_pnp_type { 233d4e1a692SToshi Kani u32 hardware_id:1; 234d4e1a692SToshi Kani u32 bus_address:1; 235549e6845SRafael J. Wysocki u32 platform_id:1; 236549e6845SRafael J. Wysocki u32 reserved:29; 237d4e1a692SToshi Kani }; 238d4e1a692SToshi Kani 2391da177e4SLinus Torvalds struct acpi_device_pnp { 2401da177e4SLinus Torvalds acpi_bus_id bus_id; /* Object name */ 241d4e1a692SToshi Kani struct acpi_pnp_type type; /* ID type */ 2421da177e4SLinus Torvalds acpi_bus_address bus_address; /* _ADR */ 24315b8dd53SBob Moore char *unique_id; /* _UID */ 2447f47fa6cSBjorn Helgaas struct list_head ids; /* _HID and _CIDs */ 2451da177e4SLinus Torvalds acpi_device_name device_name; /* Driver-determined */ 2461da177e4SLinus Torvalds acpi_device_class device_class; /* " */ 247d1efe3c3SLance Ortiz union acpi_object *str_obj; /* unicode string for _STR method */ 248bb74ac23SYasuaki Ishimatsu unsigned long sun; /* _SUN */ 2491da177e4SLinus Torvalds }; 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds #define acpi_device_bid(d) ((d)->pnp.bus_id) 2521da177e4SLinus Torvalds #define acpi_device_adr(d) ((d)->pnp.bus_address) 253620e112cSThomas Renninger const char *acpi_device_hid(struct acpi_device *device); 2541da177e4SLinus Torvalds #define acpi_device_name(d) ((d)->pnp.device_name) 2551da177e4SLinus Torvalds #define acpi_device_class(d) ((d)->pnp.device_class) 2561da177e4SLinus Torvalds 2571da177e4SLinus Torvalds /* Power Management */ 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds struct acpi_device_power_flags { 2601da177e4SLinus Torvalds u32 explicit_get:1; /* _PSC present? */ 2611da177e4SLinus Torvalds u32 power_resources:1; /* Power resources */ 2621da177e4SLinus Torvalds u32 inrush_current:1; /* Serialize Dx->D0 */ 2631da177e4SLinus Torvalds u32 power_removed:1; /* Optimize Dx->D0 */ 264644f17adSMika Westerberg u32 ignore_parent:1; /* Power is independent of parent power state */ 265f25c0ae2SRafael J. Wysocki u32 dsw_present:1; /* _DSW present? */ 266f25c0ae2SRafael J. Wysocki u32 reserved:26; 2671da177e4SLinus Torvalds }; 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds struct acpi_device_power_state { 2701da177e4SLinus Torvalds struct { 2711da177e4SLinus Torvalds u8 valid:1; 2721399dfcdSAaron Lu u8 os_accessible:1; 2731da177e4SLinus Torvalds u8 explicit_set:1; /* _PSx present? */ 2741da177e4SLinus Torvalds u8 reserved:6; 2751da177e4SLinus Torvalds } flags; 2761da177e4SLinus Torvalds int power; /* % Power (compared to D0) */ 2771da177e4SLinus Torvalds int latency; /* Dx->D0 time (microseconds) */ 2780b224527SRafael J. Wysocki struct list_head resources; /* Power resources referenced */ 2791da177e4SLinus Torvalds }; 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds struct acpi_device_power { 2821da177e4SLinus Torvalds int state; /* Current state */ 2831da177e4SLinus Torvalds struct acpi_device_power_flags flags; 284b4a03b9aSLin Ming struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ 2851da177e4SLinus Torvalds }; 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds /* Performance Management */ 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds struct acpi_device_perf_flags { 2901da177e4SLinus Torvalds u8 reserved:8; 2911da177e4SLinus Torvalds }; 2921da177e4SLinus Torvalds 2931da177e4SLinus Torvalds struct acpi_device_perf_state { 2941da177e4SLinus Torvalds struct { 2951da177e4SLinus Torvalds u8 valid:1; 2961da177e4SLinus Torvalds u8 reserved:7; 2971da177e4SLinus Torvalds } flags; 2981da177e4SLinus Torvalds u8 power; /* % Power (compared to P0) */ 2991da177e4SLinus Torvalds u8 performance; /* % Performance ( " ) */ 3001da177e4SLinus Torvalds int latency; /* Px->P0 time (microseconds) */ 3011da177e4SLinus Torvalds }; 3021da177e4SLinus Torvalds 3031da177e4SLinus Torvalds struct acpi_device_perf { 3041da177e4SLinus Torvalds int state; 3051da177e4SLinus Torvalds struct acpi_device_perf_flags flags; 3061da177e4SLinus Torvalds int state_count; 3071da177e4SLinus Torvalds struct acpi_device_perf_state *states; 3081da177e4SLinus Torvalds }; 3091da177e4SLinus Torvalds 3101da177e4SLinus Torvalds /* Wakeup Management */ 3111da177e4SLinus Torvalds struct acpi_device_wakeup_flags { 3121da177e4SLinus Torvalds u8 valid:1; /* Can successfully enable wakeup? */ 3131da177e4SLinus Torvalds u8 run_wake:1; /* Run-Wake GPE devices */ 314b67ea761SRafael J. Wysocki u8 notifier_present:1; /* Wake-up notify handler has been installed */ 3151da177e4SLinus Torvalds }; 3161da177e4SLinus Torvalds 317c072530fSRafael J. Wysocki struct acpi_device_wakeup_context { 318c072530fSRafael J. Wysocki struct work_struct work; 319c072530fSRafael J. Wysocki struct device *dev; 320c072530fSRafael J. Wysocki }; 321c072530fSRafael J. Wysocki 3221da177e4SLinus Torvalds struct acpi_device_wakeup { 3231da177e4SLinus Torvalds acpi_handle gpe_device; 324439913ffSLin Ming u64 gpe_number; 325439913ffSLin Ming u64 sleep_state; 326993cbe59SRafael J. Wysocki struct list_head resources; 3271da177e4SLinus Torvalds struct acpi_device_wakeup_flags flags; 328c072530fSRafael J. Wysocki struct acpi_device_wakeup_context context; 329c072530fSRafael J. Wysocki struct wakeup_source *ws; 3309b83ccd2SRafael J. Wysocki int prepare_count; 3311da177e4SLinus Torvalds }; 3321da177e4SLinus Torvalds 3331033f904SLan Tianyu struct acpi_device_physical_node { 334007ccfcfSRafael J. Wysocki unsigned int node_id; 3351033f904SLan Tianyu struct list_head node; 3361033f904SLan Tianyu struct device *dev; 337683058e3SRafael J. Wysocki bool put_online:1; 3381033f904SLan Tianyu }; 3391da177e4SLinus Torvalds 3401033f904SLan Tianyu /* Device */ 3411da177e4SLinus Torvalds struct acpi_device { 342caaa6efbSBjorn Helgaas int device_type; 343caaa6efbSBjorn Helgaas acpi_handle handle; /* no handle for fixed hardware */ 3441da177e4SLinus Torvalds struct acpi_device *parent; 3451da177e4SLinus Torvalds struct list_head children; 3461da177e4SLinus Torvalds struct list_head node; 3471da177e4SLinus Torvalds struct list_head wakeup_list; 348d783156eSRafael J. Wysocki struct list_head del_list; 3491da177e4SLinus Torvalds struct acpi_device_status status; 3501da177e4SLinus Torvalds struct acpi_device_flags flags; 3511da177e4SLinus Torvalds struct acpi_device_pnp pnp; 3521da177e4SLinus Torvalds struct acpi_device_power power; 3531da177e4SLinus Torvalds struct acpi_device_wakeup wakeup; 3541da177e4SLinus Torvalds struct acpi_device_perf performance; 3551da177e4SLinus Torvalds struct acpi_device_dir dir; 356ca589f94SRafael J. Wysocki struct acpi_scan_handler *handler; 3573c2cc7ffSRafael J. Wysocki struct acpi_hotplug_context *hp; 3581da177e4SLinus Torvalds struct acpi_driver *driver; 3591da177e4SLinus Torvalds void *driver_data; 3605b327265SPatrick Mochel struct device dev; 361007ccfcfSRafael J. Wysocki unsigned int physical_node_count; 3621033f904SLan Tianyu struct list_head physical_node_list; 3631033f904SLan Tianyu struct mutex physical_node_lock; 364b1c0f99bSRafael J. Wysocki void (*remove)(struct acpi_device *); 3651da177e4SLinus Torvalds }; 3661da177e4SLinus Torvalds 367db89b4f0SPavel Machek static inline void *acpi_driver_data(struct acpi_device *d) 368db89b4f0SPavel Machek { 369db89b4f0SPavel Machek return d->driver_data; 370db89b4f0SPavel Machek } 371db89b4f0SPavel Machek 372d43ec68eSPatrick Mochel #define to_acpi_device(d) container_of(d, struct acpi_device, dev) 373d43ec68eSPatrick Mochel #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) 3741da177e4SLinus Torvalds 37525db115bSRafael J. Wysocki static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) 37625db115bSRafael J. Wysocki { 37725db115bSRafael J. Wysocki *((u32 *)&adev->status) = sta; 37825db115bSRafael J. Wysocki } 37925db115bSRafael J. Wysocki 3803c2cc7ffSRafael J. Wysocki static inline void acpi_set_hp_context(struct acpi_device *adev, 381ba574dc8SRafael J. Wysocki struct acpi_hotplug_context *hp) 3823c2cc7ffSRafael J. Wysocki { 3833c2cc7ffSRafael J. Wysocki hp->self = adev; 3843c2cc7ffSRafael J. Wysocki adev->hp = hp; 3853c2cc7ffSRafael J. Wysocki } 3863c2cc7ffSRafael J. Wysocki 3875d513205SRafael J. Wysocki void acpi_initialize_hp_context(struct acpi_device *adev, 3885d513205SRafael J. Wysocki struct acpi_hotplug_context *hp, 3895d513205SRafael J. Wysocki int (*notify)(struct acpi_device *, u32), 3905d513205SRafael J. Wysocki void (*uevent)(struct acpi_device *, u32)); 3915d513205SRafael J. Wysocki 39255955aadSDavid Brownell /* acpi_device.dev.bus == &acpi_bus_type */ 39355955aadSDavid Brownell extern struct bus_type acpi_bus_type; 39455955aadSDavid Brownell 3951da177e4SLinus Torvalds /* 3961da177e4SLinus Torvalds * Events 3971da177e4SLinus Torvalds * ------ 3981da177e4SLinus Torvalds */ 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds struct acpi_bus_event { 4011da177e4SLinus Torvalds struct list_head node; 4021da177e4SLinus Torvalds acpi_device_class device_class; 4031da177e4SLinus Torvalds acpi_bus_id bus_id; 4041da177e4SLinus Torvalds u32 type; 4051da177e4SLinus Torvalds u32 data; 4061da177e4SLinus Torvalds }; 4071da177e4SLinus Torvalds 40899e0d2fcSGreg Kroah-Hartman extern struct kobject *acpi_kobj; 409962ce8caSZhang Rui extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); 4108e4319c4SBob Moore void acpi_bus_private_data_handler(acpi_handle, void *); 41120733939SZhang Rui int acpi_bus_get_private_data(acpi_handle, void **); 41272013795SLan Tianyu int acpi_bus_attach_private_data(acpi_handle, void *); 41372013795SLan Tianyu void acpi_bus_detach_private_data(acpi_handle); 4149ee85241SZhang Rui extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); 4159ee85241SZhang Rui extern int register_acpi_notifier(struct notifier_block *); 4169ee85241SZhang Rui extern int unregister_acpi_notifier(struct notifier_block *); 4176bd00a61SShaohua Li 4181da177e4SLinus Torvalds /* 4191da177e4SLinus Torvalds * External Functions 4201da177e4SLinus Torvalds */ 4211da177e4SLinus Torvalds 4221da177e4SLinus Torvalds int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); 42378ea4639SRafael J. Wysocki struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); 42478ea4639SRafael J. Wysocki void acpi_bus_put_acpi_device(struct acpi_device *adev); 425402ac536SBjorn Helgaas acpi_status acpi_bus_get_status_handle(acpi_handle handle, 426402ac536SBjorn Helgaas unsigned long long *sta); 4271da177e4SLinus Torvalds int acpi_bus_get_status(struct acpi_device *device); 4289ce4e607SRafael J. Wysocki 4291da177e4SLinus Torvalds int acpi_bus_set_power(acpi_handle handle, int state); 43096bfd3ceSRafael J. Wysocki const char *acpi_power_state_string(int state); 431ad0c3b0eSRafael J. Wysocki int acpi_device_get_power(struct acpi_device *device, int *state); 432078eb126SRafael J. Wysocki int acpi_device_set_power(struct acpi_device *device, int state); 4339ce4e607SRafael J. Wysocki int acpi_bus_init_power(struct acpi_device *device); 434b9e95fc6SRafael J. Wysocki int acpi_device_fix_up_power(struct acpi_device *device); 43525eed407SRafael J. Wysocki int acpi_bus_update_power(acpi_handle handle, int *state_p); 4363737b2b1SRafael J. Wysocki bool acpi_bus_power_manageable(acpi_handle handle); 437ec4602a9SRafael J. Wysocki 438ec4602a9SRafael J. Wysocki #ifdef CONFIG_PM 439eb9d0fe4SRafael J. Wysocki bool acpi_bus_can_wakeup(acpi_handle handle); 440ec4602a9SRafael J. Wysocki #else 441ec4602a9SRafael J. Wysocki static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } 442ec4602a9SRafael J. Wysocki #endif 4439ce4e607SRafael J. Wysocki 4443757b948SRafael J. Wysocki void acpi_scan_lock_acquire(void); 4453757b948SRafael J. Wysocki void acpi_scan_lock_release(void); 446e525506fSRafael J. Wysocki void acpi_lock_hp_context(void); 447e525506fSRafael J. Wysocki void acpi_unlock_hp_context(void); 448ca589f94SRafael J. Wysocki int acpi_scan_add_handler(struct acpi_scan_handler *handler); 4491da177e4SLinus Torvalds int acpi_bus_register_driver(struct acpi_driver *driver); 45006ea8e08SBjorn Helgaas void acpi_bus_unregister_driver(struct acpi_driver *driver); 451b8bd759aSRafael J. Wysocki int acpi_bus_scan(acpi_handle handle); 452bfee26dbSRafael J. Wysocki void acpi_bus_trim(struct acpi_device *start); 453c8f7a62cSLen Brown acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); 4548c8eb78fSThomas Renninger int acpi_match_device_ids(struct acpi_device *device, 4558c8eb78fSThomas Renninger const struct acpi_device_id *ids); 4561da177e4SLinus Torvalds int acpi_create_dir(struct acpi_device *); 4571da177e4SLinus Torvalds void acpi_remove_dir(struct acpi_device *); 4581da177e4SLinus Torvalds 459202317a5SRafael J. Wysocki static inline bool acpi_device_enumerated(struct acpi_device *adev) 460202317a5SRafael J. Wysocki { 461202317a5SRafael J. Wysocki return adev && adev->flags.initialized && adev->flags.visited; 462202317a5SRafael J. Wysocki } 463202317a5SRafael J. Wysocki 4640d2cf8f5SMika Westerberg /** 4650d2cf8f5SMika Westerberg * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver 4660d2cf8f5SMika Westerberg * @__acpi_driver: acpi_driver struct 4670d2cf8f5SMika Westerberg * 4680d2cf8f5SMika Westerberg * Helper macro for ACPI drivers which do not do anything special in module 4690d2cf8f5SMika Westerberg * init/exit. This eliminates a lot of boilerplate. Each module may only 4700d2cf8f5SMika Westerberg * use this macro once, and calling it replaces module_init() and module_exit() 4710d2cf8f5SMika Westerberg */ 4720d2cf8f5SMika Westerberg #define module_acpi_driver(__acpi_driver) \ 4730d2cf8f5SMika Westerberg module_driver(__acpi_driver, acpi_bus_register_driver, \ 4740d2cf8f5SMika Westerberg acpi_bus_unregister_driver) 4750d2cf8f5SMika Westerberg 4764e10d12aSDavid Shaohua Li /* 4774e10d12aSDavid Shaohua Li * Bind physical devices with ACPI devices 4784e10d12aSDavid Shaohua Li */ 4794e10d12aSDavid Shaohua Li struct acpi_bus_type { 4804e10d12aSDavid Shaohua Li struct list_head list; 48153540098SRafael J. Wysocki const char *name; 48253540098SRafael J. Wysocki bool (*match)(struct device *dev); 483e3f02c52SRafael J. Wysocki struct acpi_device * (*find_companion)(struct device *); 48411909ca1SRafael J. Wysocki void (*setup)(struct device *); 48511909ca1SRafael J. Wysocki void (*cleanup)(struct device *); 4864e10d12aSDavid Shaohua Li }; 4874e10d12aSDavid Shaohua Li int register_acpi_bus_type(struct acpi_bus_type *); 4884e10d12aSDavid Shaohua Li int unregister_acpi_bus_type(struct acpi_bus_type *); 489f1b1dc84SZhang Rui int acpi_bind_one(struct device *dev, struct acpi_device *adev); 490f1b1dc84SZhang Rui int acpi_unbind_one(struct device *dev); 49122c13f9dSThomas Renninger 49276d56de5SAlex Chiang struct acpi_pci_root { 49376d56de5SAlex Chiang struct acpi_device * device; 49476d56de5SAlex Chiang struct pci_bus *bus; 49576d56de5SAlex Chiang u16 segment; 4966ad95513SBjorn Helgaas struct resource secondary; /* downstream bus range */ 49776d56de5SAlex Chiang 49876d56de5SAlex Chiang u32 osc_support_set; /* _OSC state of support bits */ 49976d56de5SAlex Chiang u32 osc_control_set; /* _OSC state of control bits */ 500f4b57a3bSJiang Liu phys_addr_t mcfg_addr; 50176d56de5SAlex Chiang }; 50276d56de5SAlex Chiang 5034e10d12aSDavid Shaohua Li /* helper */ 504d9fef0c4SRafael J. Wysocki 505d9fef0c4SRafael J. Wysocki struct acpi_device *acpi_find_child_device(struct acpi_device *parent, 506d9fef0c4SRafael J. Wysocki u64 address, bool check_children); 50727558203SAlexander Chiang int acpi_is_root_bridge(acpi_handle); 50876d56de5SAlex Chiang struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); 5094e10d12aSDavid Shaohua Li 510b67ea761SRafael J. Wysocki int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); 511b67ea761SRafael J. Wysocki int acpi_disable_wakeup_device_power(struct acpi_device *dev); 512b67ea761SRafael J. Wysocki 513aa338601SRafael J. Wysocki #ifdef CONFIG_PM 514c072530fSRafael J. Wysocki acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, 515c072530fSRafael J. Wysocki void (*work_func)(struct work_struct *work)); 516c072530fSRafael J. Wysocki acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); 517ee85f543SHuang Ying int acpi_pm_device_sleep_state(struct device *, int *, int); 518761afb86SRafael J. Wysocki #else 519ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 520c072530fSRafael J. Wysocki struct device *dev, 521c072530fSRafael J. Wysocki void (*work_func)(struct work_struct *work)) 522ec2cd81cSRafael J. Wysocki { 523ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 524ec2cd81cSRafael J. Wysocki } 525c072530fSRafael J. Wysocki static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) 526ec2cd81cSRafael J. Wysocki { 527ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 528ec2cd81cSRafael J. Wysocki } 529b25c77efSRafael J. Wysocki static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) 530296699deSRafael J. Wysocki { 531296699deSRafael J. Wysocki if (p) 532296699deSRafael J. Wysocki *p = ACPI_STATE_D0; 533b25c77efSRafael J. Wysocki 5348ad928d5SRafael J. Wysocki return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? 5358ad928d5SRafael J. Wysocki m : ACPI_STATE_D0; 536296699deSRafael J. Wysocki } 537761afb86SRafael J. Wysocki #endif 538761afb86SRafael J. Wysocki 539bdda27fbSRafael J. Wysocki #ifdef CONFIG_PM_RUNTIME 540b24e5098SLin Ming int acpi_pm_device_run_wake(struct device *, bool); 541761afb86SRafael J. Wysocki #else 542b24e5098SLin Ming static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) 543b24e5098SLin Ming { 544b24e5098SLin Ming return -ENODEV; 545b24e5098SLin Ming } 546296699deSRafael J. Wysocki #endif 547296699deSRafael J. Wysocki 548296699deSRafael J. Wysocki #ifdef CONFIG_PM_SLEEP 549296699deSRafael J. Wysocki int acpi_pm_device_sleep_wake(struct device *, bool); 550f7a1b860SDavid Howells #else 551f7a1b860SDavid Howells static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) 552f7a1b860SDavid Howells { 553f7a1b860SDavid Howells return -ENODEV; 554f7a1b860SDavid Howells } 555761afb86SRafael J. Wysocki #endif 556fd4aff1aSShaohua Li 55799926a8cSDavid Rientjes #ifdef CONFIG_ACPI_SLEEP 55899926a8cSDavid Rientjes u32 acpi_target_system_state(void); 55999926a8cSDavid Rientjes #else 56099926a8cSDavid Rientjes static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } 56199926a8cSDavid Rientjes #endif 56299926a8cSDavid Rientjes 563078eb126SRafael J. Wysocki static inline bool acpi_device_power_manageable(struct acpi_device *adev) 564078eb126SRafael J. Wysocki { 565078eb126SRafael J. Wysocki return adev->flags.power_manageable; 566078eb126SRafael J. Wysocki } 567078eb126SRafael J. Wysocki 568078eb126SRafael J. Wysocki static inline bool acpi_device_can_wakeup(struct acpi_device *adev) 569078eb126SRafael J. Wysocki { 570078eb126SRafael J. Wysocki return adev->wakeup.flags.valid; 571078eb126SRafael J. Wysocki } 572078eb126SRafael J. Wysocki 5731399dfcdSAaron Lu static inline bool acpi_device_can_poweroff(struct acpi_device *adev) 5741399dfcdSAaron Lu { 5751399dfcdSAaron Lu return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; 5761399dfcdSAaron Lu } 5771399dfcdSAaron Lu 57866886d6fSMatthew Garrett #else /* CONFIG_ACPI */ 57966886d6fSMatthew Garrett 5807ae30986SLen Brown static inline int register_acpi_bus_type(void *bus) { return 0; } 5817ae30986SLen Brown static inline int unregister_acpi_bus_type(void *bus) { return 0; } 58266886d6fSMatthew Garrett 58376f58584SLen Brown #endif /* CONFIG_ACPI */ 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds #endif /*__ACPI_BUS_H__*/ 586