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> 308a0662d9SRafael J. Wysocki #include <linux/property.h> 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds /* TBD: Make dynamic */ 331da177e4SLinus Torvalds #define ACPI_MAX_HANDLES 10 341da177e4SLinus Torvalds struct acpi_handle_list { 351da177e4SLinus Torvalds u32 count; 361da177e4SLinus Torvalds acpi_handle handles[ACPI_MAX_HANDLES]; 371da177e4SLinus Torvalds }; 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds /* acpi_utils.h */ 401da177e4SLinus Torvalds acpi_status 414be44fcdSLen Brown acpi_extract_package(union acpi_object *package, 424be44fcdSLen Brown struct acpi_buffer *format, struct acpi_buffer *buffer); 431da177e4SLinus Torvalds acpi_status 444be44fcdSLen Brown acpi_evaluate_integer(acpi_handle handle, 451da177e4SLinus Torvalds acpi_string pathname, 4627663c58SMatthew Wilcox struct acpi_object_list *arguments, unsigned long long *data); 471da177e4SLinus Torvalds acpi_status 484be44fcdSLen Brown acpi_evaluate_reference(acpi_handle handle, 491da177e4SLinus Torvalds acpi_string pathname, 501da177e4SLinus Torvalds struct acpi_object_list *arguments, 511da177e4SLinus Torvalds struct acpi_handle_list *list); 52275c58d7SToshi Kani acpi_status 5305730c19SJiang Liu acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code, 5405730c19SJiang Liu struct acpi_buffer *status_buf); 551da177e4SLinus Torvalds 5638ac0f1bSMatthew Garrett acpi_status 578ede06abSFeng Tang acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); 58952c63e9SJiang Liu 59952c63e9SJiang Liu bool acpi_has_method(acpi_handle handle, char *name); 600db98202SJiang Liu acpi_status acpi_execute_simple_method(acpi_handle handle, char *method, 610db98202SJiang Liu u64 arg); 627d2421f8SJiang Liu acpi_status acpi_evaluate_ej0(acpi_handle handle); 637d2421f8SJiang Liu acpi_status acpi_evaluate_lck(acpi_handle handle, int lock); 64ebf4df8dSJiang Liu bool acpi_ata_match(acpi_handle handle); 65ebf4df8dSJiang Liu bool acpi_bay_match(acpi_handle handle); 66ebf4df8dSJiang Liu bool acpi_dock_match(acpi_handle handle); 67952c63e9SJiang Liu 68a65ac520SJiang Liu bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); 69a65ac520SJiang Liu union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, 70a65ac520SJiang Liu int rev, int func, union acpi_object *argv4); 71a65ac520SJiang Liu 72a65ac520SJiang Liu static inline union acpi_object * 73a65ac520SJiang Liu acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, 74a65ac520SJiang Liu union acpi_object *argv4, acpi_object_type type) 75a65ac520SJiang Liu { 76a65ac520SJiang Liu union acpi_object *obj; 77a65ac520SJiang Liu 78a65ac520SJiang Liu obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); 79a65ac520SJiang Liu if (obj && obj->type != type) { 80a65ac520SJiang Liu ACPI_FREE(obj); 81a65ac520SJiang Liu obj = NULL; 82a65ac520SJiang Liu } 83a65ac520SJiang Liu 84a65ac520SJiang Liu return obj; 85a65ac520SJiang Liu } 86a65ac520SJiang Liu 87a65ac520SJiang Liu #define ACPI_INIT_DSM_ARGV4(cnt, eles) \ 88a65ac520SJiang Liu { \ 89a65ac520SJiang Liu .package.type = ACPI_TYPE_PACKAGE, \ 90a65ac520SJiang Liu .package.count = (cnt), \ 91a65ac520SJiang Liu .package.elements = (eles) \ 92a65ac520SJiang Liu } 93a65ac520SJiang Liu 9476f58584SLen Brown #ifdef CONFIG_ACPI 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds #include <linux/proc_fs.h> 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds #define ACPI_BUS_FILE_ROOT "acpi" 991da177e4SLinus Torvalds extern struct proc_dir_entry *acpi_root_dir; 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds enum acpi_bus_device_type { 1021da177e4SLinus Torvalds ACPI_BUS_TYPE_DEVICE = 0, 1031da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER, 1041da177e4SLinus Torvalds ACPI_BUS_TYPE_PROCESSOR, 1051da177e4SLinus Torvalds ACPI_BUS_TYPE_THERMAL, 1061da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER_BUTTON, 1071da177e4SLinus Torvalds ACPI_BUS_TYPE_SLEEP_BUTTON, 1081da177e4SLinus Torvalds ACPI_BUS_DEVICE_TYPE_COUNT 1091da177e4SLinus Torvalds }; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds struct acpi_driver; 1121da177e4SLinus Torvalds struct acpi_device; 1131da177e4SLinus Torvalds 1141da177e4SLinus Torvalds /* 115ca589f94SRafael J. Wysocki * ACPI Scan Handler 116ca589f94SRafael J. Wysocki * ----------------- 117ca589f94SRafael J. Wysocki */ 118ca589f94SRafael J. Wysocki 119a33ec399SRafael J. Wysocki struct acpi_hotplug_profile { 1203f8055c3SRafael J. Wysocki struct kobject kobj; 1213338db00SRafael J. Wysocki int (*scan_dependent)(struct acpi_device *adev); 1228ab17fc9SRafael J. Wysocki void (*notify_online)(struct acpi_device *adev); 123d22ddcbcSRafael J. Wysocki bool enabled:1; 124d22ddcbcSRafael J. Wysocki bool demand_offline:1; 125a33ec399SRafael J. Wysocki }; 126a33ec399SRafael J. Wysocki 1273f8055c3SRafael J. Wysocki static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( 1283f8055c3SRafael J. Wysocki struct kobject *kobj) 1293f8055c3SRafael J. Wysocki { 1303f8055c3SRafael J. Wysocki return container_of(kobj, struct acpi_hotplug_profile, kobj); 1313f8055c3SRafael J. Wysocki } 1323f8055c3SRafael J. Wysocki 133ca589f94SRafael J. Wysocki struct acpi_scan_handler { 134ca589f94SRafael J. Wysocki const struct acpi_device_id *ids; 135ca589f94SRafael J. Wysocki struct list_head list_node; 136aca0a4ebSRafael J. Wysocki bool (*match)(char *idstr, const struct acpi_device_id **matchid); 137ca589f94SRafael J. Wysocki int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); 138ca589f94SRafael J. Wysocki void (*detach)(struct acpi_device *dev); 1399cb32acfSRafael J. Wysocki void (*bind)(struct device *phys_dev); 1409cb32acfSRafael J. Wysocki void (*unbind)(struct device *phys_dev); 141a33ec399SRafael J. Wysocki struct acpi_hotplug_profile hotplug; 142ca589f94SRafael J. Wysocki }; 143ca589f94SRafael J. Wysocki 144ca589f94SRafael J. Wysocki /* 1453c2cc7ffSRafael J. Wysocki * ACPI Hotplug Context 1463c2cc7ffSRafael J. Wysocki * -------------------- 1473c2cc7ffSRafael J. Wysocki */ 1483c2cc7ffSRafael J. Wysocki 1493c2cc7ffSRafael J. Wysocki struct acpi_hotplug_context { 1503c2cc7ffSRafael J. Wysocki struct acpi_device *self; 151be27b3dcSRafael J. Wysocki int (*notify)(struct acpi_device *, u32); 152be27b3dcSRafael J. Wysocki void (*uevent)(struct acpi_device *, u32); 15359b42fa0SRafael J. Wysocki void (*fixup)(struct acpi_device *); 1543c2cc7ffSRafael J. Wysocki }; 1553c2cc7ffSRafael J. Wysocki 1563c2cc7ffSRafael J. Wysocki /* 1571da177e4SLinus Torvalds * ACPI Driver 1581da177e4SLinus Torvalds * ----------- 1591da177e4SLinus Torvalds */ 1601da177e4SLinus Torvalds 1611da177e4SLinus Torvalds typedef int (*acpi_op_add) (struct acpi_device * device); 16251fac838SRafael J. Wysocki typedef int (*acpi_op_remove) (struct acpi_device * device); 16346ec8598SBjorn Helgaas typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); 1641da177e4SLinus Torvalds 1651da177e4SLinus Torvalds struct acpi_device_ops { 1661da177e4SLinus Torvalds acpi_op_add add; 1671da177e4SLinus Torvalds acpi_op_remove remove; 16846ec8598SBjorn Helgaas acpi_op_notify notify; 1691da177e4SLinus Torvalds }; 1701da177e4SLinus Torvalds 1716d278131SBjorn Helgaas #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ 1726d278131SBjorn Helgaas 1731da177e4SLinus Torvalds struct acpi_driver { 1741da177e4SLinus Torvalds char name[80]; 1751da177e4SLinus Torvalds char class[80]; 1768c8eb78fSThomas Renninger const struct acpi_device_id *ids; /* Supported Hardware IDs */ 1776d278131SBjorn Helgaas unsigned int flags; 1781da177e4SLinus Torvalds struct acpi_device_ops ops; 179d43ec68eSPatrick Mochel struct device_driver drv; 1801890a97aSPatrick Mochel struct module *owner; 1811da177e4SLinus Torvalds }; 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds /* 1841da177e4SLinus Torvalds * ACPI Device 1851da177e4SLinus Torvalds * ----------- 1861da177e4SLinus Torvalds */ 1871da177e4SLinus Torvalds 1881da177e4SLinus Torvalds /* Status (_STA) */ 1891da177e4SLinus Torvalds 1901da177e4SLinus Torvalds struct acpi_device_status { 1911da177e4SLinus Torvalds u32 present:1; 1921da177e4SLinus Torvalds u32 enabled:1; 1931da177e4SLinus Torvalds u32 show_in_ui:1; 1941da177e4SLinus Torvalds u32 functional:1; 1951da177e4SLinus Torvalds u32 battery_present:1; 1961da177e4SLinus Torvalds u32 reserved:27; 1971da177e4SLinus Torvalds }; 1981da177e4SLinus Torvalds 1991da177e4SLinus Torvalds /* Flags */ 2001da177e4SLinus Torvalds 2011da177e4SLinus Torvalds struct acpi_device_flags { 2021da177e4SLinus Torvalds u32 dynamic_status:1; 2031da177e4SLinus Torvalds u32 removable:1; 2041da177e4SLinus Torvalds u32 ejectable:1; 2051da177e4SLinus Torvalds u32 power_manageable:1; 206209d3b17SRafael J. Wysocki u32 match_driver:1; 207202317a5SRafael J. Wysocki u32 initialized:1; 208202317a5SRafael J. Wysocki u32 visited:1; 2093c2cc7ffSRafael J. Wysocki u32 hotplug_notify:1; 2101e2380cdSRafael J. Wysocki u32 is_dock_station:1; 211f91ce35eSBjorn Helgaas u32 reserved:23; 2121da177e4SLinus Torvalds }; 2131da177e4SLinus Torvalds 2141da177e4SLinus Torvalds /* File System */ 2151da177e4SLinus Torvalds 2161da177e4SLinus Torvalds struct acpi_device_dir { 2171da177e4SLinus Torvalds struct proc_dir_entry *entry; 2181da177e4SLinus Torvalds }; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds #define acpi_device_dir(d) ((d)->dir.entry) 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds /* Plug and Play */ 2231da177e4SLinus Torvalds 22424c5c4c2SZhao Yakui typedef char acpi_bus_id[8]; 2251da177e4SLinus Torvalds typedef unsigned long acpi_bus_address; 2261da177e4SLinus Torvalds typedef char acpi_device_name[40]; 2271da177e4SLinus Torvalds typedef char acpi_device_class[20]; 2281da177e4SLinus Torvalds 2297f47fa6cSBjorn Helgaas struct acpi_hardware_id { 2307f47fa6cSBjorn Helgaas struct list_head list; 2317f47fa6cSBjorn Helgaas char *id; 2327f47fa6cSBjorn Helgaas }; 2337f47fa6cSBjorn Helgaas 234d4e1a692SToshi Kani struct acpi_pnp_type { 235d4e1a692SToshi Kani u32 hardware_id:1; 236d4e1a692SToshi Kani u32 bus_address:1; 237549e6845SRafael J. Wysocki u32 platform_id:1; 238549e6845SRafael J. Wysocki u32 reserved:29; 239d4e1a692SToshi Kani }; 240d4e1a692SToshi Kani 2411da177e4SLinus Torvalds struct acpi_device_pnp { 2421da177e4SLinus Torvalds acpi_bus_id bus_id; /* Object name */ 243d4e1a692SToshi Kani struct acpi_pnp_type type; /* ID type */ 2441da177e4SLinus Torvalds acpi_bus_address bus_address; /* _ADR */ 24515b8dd53SBob Moore char *unique_id; /* _UID */ 2467f47fa6cSBjorn Helgaas struct list_head ids; /* _HID and _CIDs */ 2471da177e4SLinus Torvalds acpi_device_name device_name; /* Driver-determined */ 2481da177e4SLinus Torvalds acpi_device_class device_class; /* " */ 249d1efe3c3SLance Ortiz union acpi_object *str_obj; /* unicode string for _STR method */ 2501da177e4SLinus Torvalds }; 2511da177e4SLinus Torvalds 2521da177e4SLinus Torvalds #define acpi_device_bid(d) ((d)->pnp.bus_id) 2531da177e4SLinus Torvalds #define acpi_device_adr(d) ((d)->pnp.bus_address) 254620e112cSThomas Renninger const char *acpi_device_hid(struct acpi_device *device); 255359597cbSAdrian Hunter #define acpi_device_uid(d) ((d)->pnp.unique_id) 2561da177e4SLinus Torvalds #define acpi_device_name(d) ((d)->pnp.device_name) 2571da177e4SLinus Torvalds #define acpi_device_class(d) ((d)->pnp.device_class) 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds /* Power Management */ 2601da177e4SLinus Torvalds 2611da177e4SLinus Torvalds struct acpi_device_power_flags { 2621da177e4SLinus Torvalds u32 explicit_get:1; /* _PSC present? */ 2631da177e4SLinus Torvalds u32 power_resources:1; /* Power resources */ 2641da177e4SLinus Torvalds u32 inrush_current:1; /* Serialize Dx->D0 */ 2651da177e4SLinus Torvalds u32 power_removed:1; /* Optimize Dx->D0 */ 266644f17adSMika Westerberg u32 ignore_parent:1; /* Power is independent of parent power state */ 267f25c0ae2SRafael J. Wysocki u32 dsw_present:1; /* _DSW present? */ 268f25c0ae2SRafael J. Wysocki u32 reserved:26; 2691da177e4SLinus Torvalds }; 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds struct acpi_device_power_state { 2721da177e4SLinus Torvalds struct { 2731da177e4SLinus Torvalds u8 valid:1; 2741399dfcdSAaron Lu u8 os_accessible:1; 2751da177e4SLinus Torvalds u8 explicit_set:1; /* _PSx present? */ 2761da177e4SLinus Torvalds u8 reserved:6; 2771da177e4SLinus Torvalds } flags; 2781da177e4SLinus Torvalds int power; /* % Power (compared to D0) */ 2791da177e4SLinus Torvalds int latency; /* Dx->D0 time (microseconds) */ 2800b224527SRafael J. Wysocki struct list_head resources; /* Power resources referenced */ 2811da177e4SLinus Torvalds }; 2821da177e4SLinus Torvalds 2831da177e4SLinus Torvalds struct acpi_device_power { 2841da177e4SLinus Torvalds int state; /* Current state */ 2851da177e4SLinus Torvalds struct acpi_device_power_flags flags; 286b4a03b9aSLin Ming struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ 2871da177e4SLinus Torvalds }; 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds /* Performance Management */ 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds struct acpi_device_perf_flags { 2921da177e4SLinus Torvalds u8 reserved:8; 2931da177e4SLinus Torvalds }; 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds struct acpi_device_perf_state { 2961da177e4SLinus Torvalds struct { 2971da177e4SLinus Torvalds u8 valid:1; 2981da177e4SLinus Torvalds u8 reserved:7; 2991da177e4SLinus Torvalds } flags; 3001da177e4SLinus Torvalds u8 power; /* % Power (compared to P0) */ 3011da177e4SLinus Torvalds u8 performance; /* % Performance ( " ) */ 3021da177e4SLinus Torvalds int latency; /* Px->P0 time (microseconds) */ 3031da177e4SLinus Torvalds }; 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds struct acpi_device_perf { 3061da177e4SLinus Torvalds int state; 3071da177e4SLinus Torvalds struct acpi_device_perf_flags flags; 3081da177e4SLinus Torvalds int state_count; 3091da177e4SLinus Torvalds struct acpi_device_perf_state *states; 3101da177e4SLinus Torvalds }; 3111da177e4SLinus Torvalds 3121da177e4SLinus Torvalds /* Wakeup Management */ 3131da177e4SLinus Torvalds struct acpi_device_wakeup_flags { 3141da177e4SLinus Torvalds u8 valid:1; /* Can successfully enable wakeup? */ 3151da177e4SLinus Torvalds u8 run_wake:1; /* Run-Wake GPE devices */ 316b67ea761SRafael J. Wysocki u8 notifier_present:1; /* Wake-up notify handler has been installed */ 317175f8e26SRafael J. Wysocki u8 enabled:1; /* Enabled for wakeup */ 3181da177e4SLinus Torvalds }; 3191da177e4SLinus Torvalds 320c072530fSRafael J. Wysocki struct acpi_device_wakeup_context { 321c072530fSRafael J. Wysocki struct work_struct work; 322c072530fSRafael J. Wysocki struct device *dev; 323c072530fSRafael J. Wysocki }; 324c072530fSRafael J. Wysocki 3251da177e4SLinus Torvalds struct acpi_device_wakeup { 3261da177e4SLinus Torvalds acpi_handle gpe_device; 327439913ffSLin Ming u64 gpe_number; 328439913ffSLin Ming u64 sleep_state; 329993cbe59SRafael J. Wysocki struct list_head resources; 3301da177e4SLinus Torvalds struct acpi_device_wakeup_flags flags; 331c072530fSRafael J. Wysocki struct acpi_device_wakeup_context context; 332c072530fSRafael J. Wysocki struct wakeup_source *ws; 3339b83ccd2SRafael J. Wysocki int prepare_count; 3341da177e4SLinus Torvalds }; 3351da177e4SLinus Torvalds 3361033f904SLan Tianyu struct acpi_device_physical_node { 337007ccfcfSRafael J. Wysocki unsigned int node_id; 3381033f904SLan Tianyu struct list_head node; 3391033f904SLan Tianyu struct device *dev; 340683058e3SRafael J. Wysocki bool put_online:1; 3411033f904SLan Tianyu }; 3421da177e4SLinus Torvalds 343ffdcd955SMika Westerberg /* ACPI Device Specific Data (_DSD) */ 344ffdcd955SMika Westerberg struct acpi_device_data { 345ffdcd955SMika Westerberg const union acpi_object *pointer; 346ffdcd955SMika Westerberg const union acpi_object *properties; 347733e6251SMika Westerberg const union acpi_object *of_compatible; 348ffdcd955SMika Westerberg }; 349ffdcd955SMika Westerberg 350f028d524SRafael J. Wysocki struct acpi_gpio_mapping; 351f028d524SRafael J. Wysocki 3521033f904SLan Tianyu /* Device */ 3531da177e4SLinus Torvalds struct acpi_device { 354caaa6efbSBjorn Helgaas int device_type; 355caaa6efbSBjorn Helgaas acpi_handle handle; /* no handle for fixed hardware */ 3568a0662d9SRafael J. Wysocki struct fwnode_handle fwnode; 3571da177e4SLinus Torvalds struct acpi_device *parent; 3581da177e4SLinus Torvalds struct list_head children; 3591da177e4SLinus Torvalds struct list_head node; 3601da177e4SLinus Torvalds struct list_head wakeup_list; 361d783156eSRafael J. Wysocki struct list_head del_list; 3621da177e4SLinus Torvalds struct acpi_device_status status; 3631da177e4SLinus Torvalds struct acpi_device_flags flags; 3641da177e4SLinus Torvalds struct acpi_device_pnp pnp; 3651da177e4SLinus Torvalds struct acpi_device_power power; 3661da177e4SLinus Torvalds struct acpi_device_wakeup wakeup; 3671da177e4SLinus Torvalds struct acpi_device_perf performance; 3681da177e4SLinus Torvalds struct acpi_device_dir dir; 369ffdcd955SMika Westerberg struct acpi_device_data data; 370ca589f94SRafael J. Wysocki struct acpi_scan_handler *handler; 3713c2cc7ffSRafael J. Wysocki struct acpi_hotplug_context *hp; 3721da177e4SLinus Torvalds struct acpi_driver *driver; 373f028d524SRafael J. Wysocki const struct acpi_gpio_mapping *driver_gpios; 3741da177e4SLinus Torvalds void *driver_data; 3755b327265SPatrick Mochel struct device dev; 376007ccfcfSRafael J. Wysocki unsigned int physical_node_count; 37740e7fcb1SLan Tianyu unsigned int dep_unmet; 3781033f904SLan Tianyu struct list_head physical_node_list; 3791033f904SLan Tianyu struct mutex physical_node_lock; 380b1c0f99bSRafael J. Wysocki void (*remove)(struct acpi_device *); 3811da177e4SLinus Torvalds }; 3821da177e4SLinus Torvalds 3838a0662d9SRafael J. Wysocki static inline bool is_acpi_node(struct fwnode_handle *fwnode) 3848a0662d9SRafael J. Wysocki { 3858a0662d9SRafael J. Wysocki return fwnode && fwnode->type == FWNODE_ACPI; 3868a0662d9SRafael J. Wysocki } 3878a0662d9SRafael J. Wysocki 3888a0662d9SRafael J. Wysocki static inline struct acpi_device *acpi_node(struct fwnode_handle *fwnode) 3898a0662d9SRafael J. Wysocki { 3908a0662d9SRafael J. Wysocki return fwnode ? container_of(fwnode, struct acpi_device, fwnode) : NULL; 3918a0662d9SRafael J. Wysocki } 3928a0662d9SRafael J. Wysocki 3938a0662d9SRafael J. Wysocki static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) 3948a0662d9SRafael J. Wysocki { 3958a0662d9SRafael J. Wysocki return &adev->fwnode; 3968a0662d9SRafael J. Wysocki } 3978a0662d9SRafael J. Wysocki 398db89b4f0SPavel Machek static inline void *acpi_driver_data(struct acpi_device *d) 399db89b4f0SPavel Machek { 400db89b4f0SPavel Machek return d->driver_data; 401db89b4f0SPavel Machek } 402db89b4f0SPavel Machek 403d43ec68eSPatrick Mochel #define to_acpi_device(d) container_of(d, struct acpi_device, dev) 404d43ec68eSPatrick Mochel #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) 4051da177e4SLinus Torvalds 40625db115bSRafael J. Wysocki static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) 40725db115bSRafael J. Wysocki { 40825db115bSRafael J. Wysocki *((u32 *)&adev->status) = sta; 40925db115bSRafael J. Wysocki } 41025db115bSRafael J. Wysocki 4113c2cc7ffSRafael J. Wysocki static inline void acpi_set_hp_context(struct acpi_device *adev, 412ba574dc8SRafael J. Wysocki struct acpi_hotplug_context *hp) 4133c2cc7ffSRafael J. Wysocki { 4143c2cc7ffSRafael J. Wysocki hp->self = adev; 4153c2cc7ffSRafael J. Wysocki adev->hp = hp; 4163c2cc7ffSRafael J. Wysocki } 4173c2cc7ffSRafael J. Wysocki 4185d513205SRafael J. Wysocki void acpi_initialize_hp_context(struct acpi_device *adev, 4195d513205SRafael J. Wysocki struct acpi_hotplug_context *hp, 4205d513205SRafael J. Wysocki int (*notify)(struct acpi_device *, u32), 4215d513205SRafael J. Wysocki void (*uevent)(struct acpi_device *, u32)); 4225d513205SRafael J. Wysocki 42355955aadSDavid Brownell /* acpi_device.dev.bus == &acpi_bus_type */ 42455955aadSDavid Brownell extern struct bus_type acpi_bus_type; 42555955aadSDavid Brownell 4261da177e4SLinus Torvalds /* 4271da177e4SLinus Torvalds * Events 4281da177e4SLinus Torvalds * ------ 4291da177e4SLinus Torvalds */ 4301da177e4SLinus Torvalds 4311da177e4SLinus Torvalds struct acpi_bus_event { 4321da177e4SLinus Torvalds struct list_head node; 4331da177e4SLinus Torvalds acpi_device_class device_class; 4341da177e4SLinus Torvalds acpi_bus_id bus_id; 4351da177e4SLinus Torvalds u32 type; 4361da177e4SLinus Torvalds u32 data; 4371da177e4SLinus Torvalds }; 4381da177e4SLinus Torvalds 43999e0d2fcSGreg Kroah-Hartman extern struct kobject *acpi_kobj; 440962ce8caSZhang Rui extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); 4418e4319c4SBob Moore void acpi_bus_private_data_handler(acpi_handle, void *); 44220733939SZhang Rui int acpi_bus_get_private_data(acpi_handle, void **); 44372013795SLan Tianyu int acpi_bus_attach_private_data(acpi_handle, void *); 44472013795SLan Tianyu void acpi_bus_detach_private_data(acpi_handle); 4459ee85241SZhang Rui extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); 4469ee85241SZhang Rui extern int register_acpi_notifier(struct notifier_block *); 4479ee85241SZhang Rui extern int unregister_acpi_notifier(struct notifier_block *); 4486bd00a61SShaohua Li 4491da177e4SLinus Torvalds /* 4501da177e4SLinus Torvalds * External Functions 4511da177e4SLinus Torvalds */ 4521da177e4SLinus Torvalds 4531da177e4SLinus Torvalds int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); 45478ea4639SRafael J. Wysocki struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); 45578ea4639SRafael J. Wysocki void acpi_bus_put_acpi_device(struct acpi_device *adev); 456402ac536SBjorn Helgaas acpi_status acpi_bus_get_status_handle(acpi_handle handle, 457402ac536SBjorn Helgaas unsigned long long *sta); 4581da177e4SLinus Torvalds int acpi_bus_get_status(struct acpi_device *device); 4599ce4e607SRafael J. Wysocki 4601da177e4SLinus Torvalds int acpi_bus_set_power(acpi_handle handle, int state); 46196bfd3ceSRafael J. Wysocki const char *acpi_power_state_string(int state); 462ad0c3b0eSRafael J. Wysocki int acpi_device_get_power(struct acpi_device *device, int *state); 463078eb126SRafael J. Wysocki int acpi_device_set_power(struct acpi_device *device, int state); 4649ce4e607SRafael J. Wysocki int acpi_bus_init_power(struct acpi_device *device); 465b9e95fc6SRafael J. Wysocki int acpi_device_fix_up_power(struct acpi_device *device); 46625eed407SRafael J. Wysocki int acpi_bus_update_power(acpi_handle handle, int *state_p); 4672bb3a2bfSAaron Lu int acpi_device_update_power(struct acpi_device *device, int *state_p); 4683737b2b1SRafael J. Wysocki bool acpi_bus_power_manageable(acpi_handle handle); 469ec4602a9SRafael J. Wysocki 470ec4602a9SRafael J. Wysocki #ifdef CONFIG_PM 471eb9d0fe4SRafael J. Wysocki bool acpi_bus_can_wakeup(acpi_handle handle); 472ec4602a9SRafael J. Wysocki #else 473ec4602a9SRafael J. Wysocki static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; } 474ec4602a9SRafael J. Wysocki #endif 4759ce4e607SRafael J. Wysocki 4763757b948SRafael J. Wysocki void acpi_scan_lock_acquire(void); 4773757b948SRafael J. Wysocki void acpi_scan_lock_release(void); 478e525506fSRafael J. Wysocki void acpi_lock_hp_context(void); 479e525506fSRafael J. Wysocki void acpi_unlock_hp_context(void); 480ca589f94SRafael J. Wysocki int acpi_scan_add_handler(struct acpi_scan_handler *handler); 4811da177e4SLinus Torvalds int acpi_bus_register_driver(struct acpi_driver *driver); 48206ea8e08SBjorn Helgaas void acpi_bus_unregister_driver(struct acpi_driver *driver); 483b8bd759aSRafael J. Wysocki int acpi_bus_scan(acpi_handle handle); 484bfee26dbSRafael J. Wysocki void acpi_bus_trim(struct acpi_device *start); 485c8f7a62cSLen Brown acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); 4868c8eb78fSThomas Renninger int acpi_match_device_ids(struct acpi_device *device, 4878c8eb78fSThomas Renninger const struct acpi_device_id *ids); 4881da177e4SLinus Torvalds int acpi_create_dir(struct acpi_device *); 4891da177e4SLinus Torvalds void acpi_remove_dir(struct acpi_device *); 4901da177e4SLinus Torvalds 491202317a5SRafael J. Wysocki static inline bool acpi_device_enumerated(struct acpi_device *adev) 492202317a5SRafael J. Wysocki { 493202317a5SRafael J. Wysocki return adev && adev->flags.initialized && adev->flags.visited; 494202317a5SRafael J. Wysocki } 495202317a5SRafael J. Wysocki 4960d2cf8f5SMika Westerberg /** 4970d2cf8f5SMika Westerberg * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver 4980d2cf8f5SMika Westerberg * @__acpi_driver: acpi_driver struct 4990d2cf8f5SMika Westerberg * 5000d2cf8f5SMika Westerberg * Helper macro for ACPI drivers which do not do anything special in module 5010d2cf8f5SMika Westerberg * init/exit. This eliminates a lot of boilerplate. Each module may only 5020d2cf8f5SMika Westerberg * use this macro once, and calling it replaces module_init() and module_exit() 5030d2cf8f5SMika Westerberg */ 5040d2cf8f5SMika Westerberg #define module_acpi_driver(__acpi_driver) \ 5050d2cf8f5SMika Westerberg module_driver(__acpi_driver, acpi_bus_register_driver, \ 5060d2cf8f5SMika Westerberg acpi_bus_unregister_driver) 5070d2cf8f5SMika Westerberg 5084e10d12aSDavid Shaohua Li /* 5094e10d12aSDavid Shaohua Li * Bind physical devices with ACPI devices 5104e10d12aSDavid Shaohua Li */ 5114e10d12aSDavid Shaohua Li struct acpi_bus_type { 5124e10d12aSDavid Shaohua Li struct list_head list; 51353540098SRafael J. Wysocki const char *name; 51453540098SRafael J. Wysocki bool (*match)(struct device *dev); 515e3f02c52SRafael J. Wysocki struct acpi_device * (*find_companion)(struct device *); 51611909ca1SRafael J. Wysocki void (*setup)(struct device *); 51711909ca1SRafael J. Wysocki void (*cleanup)(struct device *); 5184e10d12aSDavid Shaohua Li }; 5194e10d12aSDavid Shaohua Li int register_acpi_bus_type(struct acpi_bus_type *); 5204e10d12aSDavid Shaohua Li int unregister_acpi_bus_type(struct acpi_bus_type *); 521f1b1dc84SZhang Rui int acpi_bind_one(struct device *dev, struct acpi_device *adev); 522f1b1dc84SZhang Rui int acpi_unbind_one(struct device *dev); 52322c13f9dSThomas Renninger 52476d56de5SAlex Chiang struct acpi_pci_root { 52576d56de5SAlex Chiang struct acpi_device * device; 52676d56de5SAlex Chiang struct pci_bus *bus; 52776d56de5SAlex Chiang u16 segment; 5286ad95513SBjorn Helgaas struct resource secondary; /* downstream bus range */ 52976d56de5SAlex Chiang 53076d56de5SAlex Chiang u32 osc_support_set; /* _OSC state of support bits */ 53176d56de5SAlex Chiang u32 osc_control_set; /* _OSC state of control bits */ 532f4b57a3bSJiang Liu phys_addr_t mcfg_addr; 53376d56de5SAlex Chiang }; 53476d56de5SAlex Chiang 5354e10d12aSDavid Shaohua Li /* helper */ 536d9fef0c4SRafael J. Wysocki 537d9fef0c4SRafael J. Wysocki struct acpi_device *acpi_find_child_device(struct acpi_device *parent, 538d9fef0c4SRafael J. Wysocki u64 address, bool check_children); 53927558203SAlexander Chiang int acpi_is_root_bridge(acpi_handle); 54076d56de5SAlex Chiang struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); 5414e10d12aSDavid Shaohua Li 542b67ea761SRafael J. Wysocki int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); 543b67ea761SRafael J. Wysocki int acpi_disable_wakeup_device_power(struct acpi_device *dev); 544b67ea761SRafael J. Wysocki 545aa338601SRafael J. Wysocki #ifdef CONFIG_PM 546c072530fSRafael J. Wysocki acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev, 547c072530fSRafael J. Wysocki void (*work_func)(struct work_struct *work)); 548c072530fSRafael J. Wysocki acpi_status acpi_remove_pm_notifier(struct acpi_device *adev); 549ee85f543SHuang Ying int acpi_pm_device_sleep_state(struct device *, int *, int); 5505de21bb9SRafael J. Wysocki int acpi_pm_device_run_wake(struct device *, bool); 551761afb86SRafael J. Wysocki #else 552ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 553c072530fSRafael J. Wysocki struct device *dev, 554c072530fSRafael J. Wysocki void (*work_func)(struct work_struct *work)) 555ec2cd81cSRafael J. Wysocki { 556ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 557ec2cd81cSRafael J. Wysocki } 558c072530fSRafael J. Wysocki static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev) 559ec2cd81cSRafael J. Wysocki { 560ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 561ec2cd81cSRafael J. Wysocki } 562b25c77efSRafael J. Wysocki static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) 563296699deSRafael J. Wysocki { 564296699deSRafael J. Wysocki if (p) 565296699deSRafael J. Wysocki *p = ACPI_STATE_D0; 566b25c77efSRafael J. Wysocki 5678ad928d5SRafael J. Wysocki return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ? 5688ad928d5SRafael J. Wysocki m : ACPI_STATE_D0; 569296699deSRafael J. Wysocki } 570b24e5098SLin Ming static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) 571b24e5098SLin Ming { 572b24e5098SLin Ming return -ENODEV; 573b24e5098SLin Ming } 574761afb86SRafael J. Wysocki #endif 575761afb86SRafael J. Wysocki 576761afb86SRafael J. Wysocki #ifdef CONFIG_PM_SLEEP 577761afb86SRafael J. Wysocki int acpi_pm_device_sleep_wake(struct device *, bool); 578f7a1b860SDavid Howells #else 579f7a1b860SDavid Howells static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) 580f7a1b860SDavid Howells { 581f7a1b860SDavid Howells return -ENODEV; 582f7a1b860SDavid Howells } 583761afb86SRafael J. Wysocki #endif 584fd4aff1aSShaohua Li 58599926a8cSDavid Rientjes #ifdef CONFIG_ACPI_SLEEP 58699926a8cSDavid Rientjes u32 acpi_target_system_state(void); 58799926a8cSDavid Rientjes #else 58899926a8cSDavid Rientjes static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } 58999926a8cSDavid Rientjes #endif 59099926a8cSDavid Rientjes 591078eb126SRafael J. Wysocki static inline bool acpi_device_power_manageable(struct acpi_device *adev) 592078eb126SRafael J. Wysocki { 593078eb126SRafael J. Wysocki return adev->flags.power_manageable; 594078eb126SRafael J. Wysocki } 595078eb126SRafael J. Wysocki 596078eb126SRafael J. Wysocki static inline bool acpi_device_can_wakeup(struct acpi_device *adev) 597078eb126SRafael J. Wysocki { 598078eb126SRafael J. Wysocki return adev->wakeup.flags.valid; 599078eb126SRafael J. Wysocki } 600078eb126SRafael J. Wysocki 6011399dfcdSAaron Lu static inline bool acpi_device_can_poweroff(struct acpi_device *adev) 6021399dfcdSAaron Lu { 6031399dfcdSAaron Lu return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; 6041399dfcdSAaron Lu } 6051399dfcdSAaron Lu 60666886d6fSMatthew Garrett #else /* CONFIG_ACPI */ 60766886d6fSMatthew Garrett 6087ae30986SLen Brown static inline int register_acpi_bus_type(void *bus) { return 0; } 6097ae30986SLen Brown static inline int unregister_acpi_bus_type(void *bus) { return 0; } 61066886d6fSMatthew Garrett 61176f58584SLen Brown #endif /* CONFIG_ACPI */ 6121da177e4SLinus Torvalds 6131da177e4SLinus Torvalds #endif /*__ACPI_BUS_H__*/ 614