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 #include <acpi/acpi.h> 321da177e4SLinus Torvalds 331da177e4SLinus Torvalds /* TBD: Make dynamic */ 341da177e4SLinus Torvalds #define ACPI_MAX_HANDLES 10 351da177e4SLinus Torvalds struct acpi_handle_list { 361da177e4SLinus Torvalds u32 count; 371da177e4SLinus Torvalds acpi_handle handles[ACPI_MAX_HANDLES]; 381da177e4SLinus Torvalds }; 391da177e4SLinus Torvalds 401da177e4SLinus Torvalds /* acpi_utils.h */ 411da177e4SLinus Torvalds acpi_status 424be44fcdSLen Brown acpi_extract_package(union acpi_object *package, 434be44fcdSLen Brown struct acpi_buffer *format, struct acpi_buffer *buffer); 441da177e4SLinus Torvalds acpi_status 454be44fcdSLen Brown acpi_evaluate_integer(acpi_handle handle, 461da177e4SLinus Torvalds acpi_string pathname, 4727663c58SMatthew Wilcox struct acpi_object_list *arguments, unsigned long long *data); 481da177e4SLinus Torvalds acpi_status 494be44fcdSLen Brown acpi_evaluate_reference(acpi_handle handle, 501da177e4SLinus Torvalds acpi_string pathname, 511da177e4SLinus Torvalds struct acpi_object_list *arguments, 521da177e4SLinus Torvalds struct acpi_handle_list *list); 53275c58d7SToshi Kani acpi_status 54275c58d7SToshi Kani acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, 55275c58d7SToshi Kani u32 status_code, struct acpi_buffer *status_buf); 561da177e4SLinus Torvalds 5738ac0f1bSMatthew Garrett acpi_status 588ede06abSFeng Tang acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld); 5976f58584SLen Brown #ifdef CONFIG_ACPI 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds #include <linux/proc_fs.h> 621da177e4SLinus Torvalds 631da177e4SLinus Torvalds #define ACPI_BUS_FILE_ROOT "acpi" 641da177e4SLinus Torvalds extern struct proc_dir_entry *acpi_root_dir; 651da177e4SLinus Torvalds 661da177e4SLinus Torvalds enum acpi_bus_removal_type { 671da177e4SLinus Torvalds ACPI_BUS_REMOVAL_NORMAL = 0, 681da177e4SLinus Torvalds ACPI_BUS_REMOVAL_EJECT, 691da177e4SLinus Torvalds ACPI_BUS_REMOVAL_SUPRISE, 701da177e4SLinus Torvalds ACPI_BUS_REMOVAL_TYPE_COUNT 711da177e4SLinus Torvalds }; 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds enum acpi_bus_device_type { 741da177e4SLinus Torvalds ACPI_BUS_TYPE_DEVICE = 0, 751da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER, 761da177e4SLinus Torvalds ACPI_BUS_TYPE_PROCESSOR, 771da177e4SLinus Torvalds ACPI_BUS_TYPE_THERMAL, 781da177e4SLinus Torvalds ACPI_BUS_TYPE_POWER_BUTTON, 791da177e4SLinus Torvalds ACPI_BUS_TYPE_SLEEP_BUTTON, 801da177e4SLinus Torvalds ACPI_BUS_DEVICE_TYPE_COUNT 811da177e4SLinus Torvalds }; 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds struct acpi_driver; 841da177e4SLinus Torvalds struct acpi_device; 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds /* 871da177e4SLinus Torvalds * ACPI Driver 881da177e4SLinus Torvalds * ----------- 891da177e4SLinus Torvalds */ 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds typedef int (*acpi_op_add) (struct acpi_device * device); 921da177e4SLinus Torvalds typedef int (*acpi_op_remove) (struct acpi_device * device, int type); 931da177e4SLinus Torvalds typedef int (*acpi_op_start) (struct acpi_device * device); 9446ec8598SBjorn Helgaas typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event); 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds struct acpi_device_ops { 971da177e4SLinus Torvalds acpi_op_add add; 981da177e4SLinus Torvalds acpi_op_remove remove; 991da177e4SLinus Torvalds acpi_op_start start; 10046ec8598SBjorn Helgaas acpi_op_notify notify; 1011da177e4SLinus Torvalds }; 1021da177e4SLinus Torvalds 1036d278131SBjorn Helgaas #define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */ 1046d278131SBjorn Helgaas 1051da177e4SLinus Torvalds struct acpi_driver { 1061da177e4SLinus Torvalds char name[80]; 1071da177e4SLinus Torvalds char class[80]; 1088c8eb78fSThomas Renninger const struct acpi_device_id *ids; /* Supported Hardware IDs */ 1096d278131SBjorn Helgaas unsigned int flags; 1101da177e4SLinus Torvalds struct acpi_device_ops ops; 111d43ec68eSPatrick Mochel struct device_driver drv; 1121890a97aSPatrick Mochel struct module *owner; 1131da177e4SLinus Torvalds }; 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds /* 1161da177e4SLinus Torvalds * ACPI Device 1171da177e4SLinus Torvalds * ----------- 1181da177e4SLinus Torvalds */ 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds /* Status (_STA) */ 1211da177e4SLinus Torvalds 1221da177e4SLinus Torvalds struct acpi_device_status { 1231da177e4SLinus Torvalds u32 present:1; 1241da177e4SLinus Torvalds u32 enabled:1; 1251da177e4SLinus Torvalds u32 show_in_ui:1; 1261da177e4SLinus Torvalds u32 functional:1; 1271da177e4SLinus Torvalds u32 battery_present:1; 1281da177e4SLinus Torvalds u32 reserved:27; 1291da177e4SLinus Torvalds }; 1301da177e4SLinus Torvalds 1311da177e4SLinus Torvalds /* Flags */ 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds struct acpi_device_flags { 1341da177e4SLinus Torvalds u32 dynamic_status:1; 1351da177e4SLinus Torvalds u32 bus_address:1; 1361da177e4SLinus Torvalds u32 removable:1; 1371da177e4SLinus Torvalds u32 ejectable:1; 1381da177e4SLinus Torvalds u32 suprise_removal_ok:1; 1391da177e4SLinus Torvalds u32 power_manageable:1; 1401da177e4SLinus Torvalds u32 performance_manageable:1; 141c4753e57SToshi Kani u32 eject_pending:1; 142209d3b17SRafael J. Wysocki u32 match_driver:1; 143209d3b17SRafael J. Wysocki u32 reserved:23; 1441da177e4SLinus Torvalds }; 1451da177e4SLinus Torvalds 1461da177e4SLinus Torvalds /* File System */ 1471da177e4SLinus Torvalds 1481da177e4SLinus Torvalds struct acpi_device_dir { 1491da177e4SLinus Torvalds struct proc_dir_entry *entry; 1501da177e4SLinus Torvalds }; 1511da177e4SLinus Torvalds 1521da177e4SLinus Torvalds #define acpi_device_dir(d) ((d)->dir.entry) 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds /* Plug and Play */ 1551da177e4SLinus Torvalds 15624c5c4c2SZhao Yakui typedef char acpi_bus_id[8]; 1571da177e4SLinus Torvalds typedef unsigned long acpi_bus_address; 1581da177e4SLinus Torvalds typedef char acpi_device_name[40]; 1591da177e4SLinus Torvalds typedef char acpi_device_class[20]; 1601da177e4SLinus Torvalds 1617f47fa6cSBjorn Helgaas struct acpi_hardware_id { 1627f47fa6cSBjorn Helgaas struct list_head list; 1637f47fa6cSBjorn Helgaas char *id; 1647f47fa6cSBjorn Helgaas }; 1657f47fa6cSBjorn Helgaas 1661da177e4SLinus Torvalds struct acpi_device_pnp { 1671da177e4SLinus Torvalds acpi_bus_id bus_id; /* Object name */ 1681da177e4SLinus Torvalds acpi_bus_address bus_address; /* _ADR */ 16915b8dd53SBob Moore char *unique_id; /* _UID */ 1707f47fa6cSBjorn Helgaas struct list_head ids; /* _HID and _CIDs */ 1711da177e4SLinus Torvalds acpi_device_name device_name; /* Driver-determined */ 1721da177e4SLinus Torvalds acpi_device_class device_class; /* " */ 173d1efe3c3SLance Ortiz union acpi_object *str_obj; /* unicode string for _STR method */ 174bb74ac23SYasuaki Ishimatsu unsigned long sun; /* _SUN */ 1751da177e4SLinus Torvalds }; 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds #define acpi_device_bid(d) ((d)->pnp.bus_id) 1781da177e4SLinus Torvalds #define acpi_device_adr(d) ((d)->pnp.bus_address) 179620e112cSThomas Renninger const char *acpi_device_hid(struct acpi_device *device); 1801da177e4SLinus Torvalds #define acpi_device_name(d) ((d)->pnp.device_name) 1811da177e4SLinus Torvalds #define acpi_device_class(d) ((d)->pnp.device_class) 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds /* Power Management */ 1841da177e4SLinus Torvalds 1851da177e4SLinus Torvalds struct acpi_device_power_flags { 1861da177e4SLinus Torvalds u32 explicit_get:1; /* _PSC present? */ 1871da177e4SLinus Torvalds u32 power_resources:1; /* Power resources */ 1881da177e4SLinus Torvalds u32 inrush_current:1; /* Serialize Dx->D0 */ 1891da177e4SLinus Torvalds u32 power_removed:1; /* Optimize Dx->D0 */ 1901da177e4SLinus Torvalds u32 reserved:28; 1911da177e4SLinus Torvalds }; 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds struct acpi_device_power_state { 1941da177e4SLinus Torvalds struct { 1951da177e4SLinus Torvalds u8 valid:1; 1961399dfcdSAaron Lu u8 os_accessible:1; 1971da177e4SLinus Torvalds u8 explicit_set:1; /* _PSx present? */ 1981da177e4SLinus Torvalds u8 reserved:6; 1991da177e4SLinus Torvalds } flags; 2001da177e4SLinus Torvalds int power; /* % Power (compared to D0) */ 2011da177e4SLinus Torvalds int latency; /* Dx->D0 time (microseconds) */ 2021da177e4SLinus Torvalds struct acpi_handle_list resources; /* Power resources referenced */ 2031da177e4SLinus Torvalds }; 2041da177e4SLinus Torvalds 2051da177e4SLinus Torvalds struct acpi_device_power { 2061da177e4SLinus Torvalds int state; /* Current state */ 2071da177e4SLinus Torvalds struct acpi_device_power_flags flags; 208b4a03b9aSLin Ming struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ 2091da177e4SLinus Torvalds }; 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds /* Performance Management */ 2121da177e4SLinus Torvalds 2131da177e4SLinus Torvalds struct acpi_device_perf_flags { 2141da177e4SLinus Torvalds u8 reserved:8; 2151da177e4SLinus Torvalds }; 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds struct acpi_device_perf_state { 2181da177e4SLinus Torvalds struct { 2191da177e4SLinus Torvalds u8 valid:1; 2201da177e4SLinus Torvalds u8 reserved:7; 2211da177e4SLinus Torvalds } flags; 2221da177e4SLinus Torvalds u8 power; /* % Power (compared to P0) */ 2231da177e4SLinus Torvalds u8 performance; /* % Performance ( " ) */ 2241da177e4SLinus Torvalds int latency; /* Px->P0 time (microseconds) */ 2251da177e4SLinus Torvalds }; 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds struct acpi_device_perf { 2281da177e4SLinus Torvalds int state; 2291da177e4SLinus Torvalds struct acpi_device_perf_flags flags; 2301da177e4SLinus Torvalds int state_count; 2311da177e4SLinus Torvalds struct acpi_device_perf_state *states; 2321da177e4SLinus Torvalds }; 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds /* Wakeup Management */ 2351da177e4SLinus Torvalds struct acpi_device_wakeup_flags { 2361da177e4SLinus Torvalds u8 valid:1; /* Can successfully enable wakeup? */ 2371da177e4SLinus Torvalds u8 run_wake:1; /* Run-Wake GPE devices */ 238b67ea761SRafael J. Wysocki u8 notifier_present:1; /* Wake-up notify handler has been installed */ 2391da177e4SLinus Torvalds }; 2401da177e4SLinus Torvalds 2411da177e4SLinus Torvalds struct acpi_device_wakeup { 2421da177e4SLinus Torvalds acpi_handle gpe_device; 243439913ffSLin Ming u64 gpe_number; 244439913ffSLin Ming u64 sleep_state; 2451da177e4SLinus Torvalds struct acpi_handle_list resources; 2461da177e4SLinus Torvalds struct acpi_device_wakeup_flags flags; 2479b83ccd2SRafael J. Wysocki int prepare_count; 2481da177e4SLinus Torvalds }; 2491da177e4SLinus Torvalds 2501033f904SLan Tianyu struct acpi_device_physical_node { 2511033f904SLan Tianyu u8 node_id; 2521033f904SLan Tianyu struct list_head node; 2531033f904SLan Tianyu struct device *dev; 2541033f904SLan Tianyu }; 2551da177e4SLinus Torvalds 2561033f904SLan Tianyu /* set maximum of physical nodes to 32 for expansibility */ 2571033f904SLan Tianyu #define ACPI_MAX_PHYSICAL_NODE 32 2581033f904SLan Tianyu 2591033f904SLan Tianyu /* Device */ 2601da177e4SLinus Torvalds struct acpi_device { 261caaa6efbSBjorn Helgaas int device_type; 262caaa6efbSBjorn Helgaas acpi_handle handle; /* no handle for fixed hardware */ 2631da177e4SLinus Torvalds struct acpi_device *parent; 2641da177e4SLinus Torvalds struct list_head children; 2651da177e4SLinus Torvalds struct list_head node; 2661da177e4SLinus Torvalds struct list_head wakeup_list; 2671da177e4SLinus Torvalds struct acpi_device_status status; 2681da177e4SLinus Torvalds struct acpi_device_flags flags; 2691da177e4SLinus Torvalds struct acpi_device_pnp pnp; 2701da177e4SLinus Torvalds struct acpi_device_power power; 2711da177e4SLinus Torvalds struct acpi_device_wakeup wakeup; 2721da177e4SLinus Torvalds struct acpi_device_perf performance; 2731da177e4SLinus Torvalds struct acpi_device_dir dir; 2741da177e4SLinus Torvalds struct acpi_driver *driver; 2751da177e4SLinus Torvalds void *driver_data; 2765b327265SPatrick Mochel struct device dev; 27796333578SLi Shaohua enum acpi_bus_removal_type removal_type; /* indicate for different removal type */ 2781033f904SLan Tianyu u8 physical_node_count; 2791033f904SLan Tianyu struct list_head physical_node_list; 2801033f904SLan Tianyu struct mutex physical_node_lock; 2811033f904SLan Tianyu DECLARE_BITMAP(physical_node_id_bitmap, ACPI_MAX_PHYSICAL_NODE); 2821da177e4SLinus Torvalds }; 2831da177e4SLinus Torvalds 284db89b4f0SPavel Machek static inline void *acpi_driver_data(struct acpi_device *d) 285db89b4f0SPavel Machek { 286db89b4f0SPavel Machek return d->driver_data; 287db89b4f0SPavel Machek } 288db89b4f0SPavel Machek 289d43ec68eSPatrick Mochel #define to_acpi_device(d) container_of(d, struct acpi_device, dev) 290d43ec68eSPatrick Mochel #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) 2911da177e4SLinus Torvalds 29255955aadSDavid Brownell /* acpi_device.dev.bus == &acpi_bus_type */ 29355955aadSDavid Brownell extern struct bus_type acpi_bus_type; 29455955aadSDavid Brownell 2951da177e4SLinus Torvalds /* 2961da177e4SLinus Torvalds * Events 2971da177e4SLinus Torvalds * ------ 2981da177e4SLinus Torvalds */ 2991da177e4SLinus Torvalds 3001da177e4SLinus Torvalds struct acpi_bus_event { 3011da177e4SLinus Torvalds struct list_head node; 3021da177e4SLinus Torvalds acpi_device_class device_class; 3031da177e4SLinus Torvalds acpi_bus_id bus_id; 3041da177e4SLinus Torvalds u32 type; 3051da177e4SLinus Torvalds u32 data; 3061da177e4SLinus Torvalds }; 3071da177e4SLinus Torvalds 308c4753e57SToshi Kani struct acpi_eject_event { 3095993c467SYinghai Lu struct acpi_device *device; 310c4753e57SToshi Kani u32 event; 311c4753e57SToshi Kani }; 312c4753e57SToshi Kani 31399e0d2fcSGreg Kroah-Hartman extern struct kobject *acpi_kobj; 314962ce8caSZhang Rui extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); 3158e4319c4SBob Moore void acpi_bus_private_data_handler(acpi_handle, void *); 31620733939SZhang Rui int acpi_bus_get_private_data(acpi_handle, void **); 3179ee85241SZhang Rui extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); 3189ee85241SZhang Rui extern int register_acpi_notifier(struct notifier_block *); 3199ee85241SZhang Rui extern int unregister_acpi_notifier(struct notifier_block *); 3206bd00a61SShaohua Li 3216bd00a61SShaohua Li extern int register_acpi_bus_notifier(struct notifier_block *nb); 3226bd00a61SShaohua Li extern void unregister_acpi_bus_notifier(struct notifier_block *nb); 3231da177e4SLinus Torvalds /* 3241da177e4SLinus Torvalds * External Functions 3251da177e4SLinus Torvalds */ 3261da177e4SLinus Torvalds 3271da177e4SLinus Torvalds int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); 3288e4319c4SBob Moore void acpi_bus_data_handler(acpi_handle handle, void *context); 329402ac536SBjorn Helgaas acpi_status acpi_bus_get_status_handle(acpi_handle handle, 330402ac536SBjorn Helgaas unsigned long long *sta); 3311da177e4SLinus Torvalds int acpi_bus_get_status(struct acpi_device *device); 3321da177e4SLinus Torvalds int acpi_bus_set_power(acpi_handle handle, int state); 333078eb126SRafael J. Wysocki int acpi_device_set_power(struct acpi_device *device, int state); 33425eed407SRafael J. Wysocki int acpi_bus_update_power(acpi_handle handle, int *state_p); 3353737b2b1SRafael J. Wysocki bool acpi_bus_power_manageable(acpi_handle handle); 336eb9d0fe4SRafael J. Wysocki bool acpi_bus_can_wakeup(acpi_handle handle); 3370090def6SLin Ming int acpi_power_resource_register_device(struct device *dev, acpi_handle handle); 3380090def6SLin Ming void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle); 33914e04fb3SLen Brown #ifdef CONFIG_ACPI_PROC_EVENT 34014e04fb3SLen Brown int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data); 3418db85d4cSAlexey Starikovskiy int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data); 3421da177e4SLinus Torvalds int acpi_bus_receive_event(struct acpi_bus_event *event); 34314e04fb3SLen Brown #else 34414e04fb3SLen Brown static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data) 34514e04fb3SLen Brown { return 0; } 34614e04fb3SLen Brown #endif 3471da177e4SLinus Torvalds int acpi_bus_register_driver(struct acpi_driver *driver); 34806ea8e08SBjorn Helgaas void acpi_bus_unregister_driver(struct acpi_driver *driver); 349b8bd759aSRafael J. Wysocki int acpi_bus_scan(acpi_handle handle); 350c4753e57SToshi Kani void acpi_bus_hot_remove_device(void *context); 351ae281795SRafael J. Wysocki int acpi_bus_trim(struct acpi_device *start); 352c8f7a62cSLen Brown acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); 3538c8eb78fSThomas Renninger int acpi_match_device_ids(struct acpi_device *device, 3548c8eb78fSThomas Renninger const struct acpi_device_id *ids); 3551da177e4SLinus Torvalds int acpi_create_dir(struct acpi_device *); 3561da177e4SLinus Torvalds void acpi_remove_dir(struct acpi_device *); 3571da177e4SLinus Torvalds 3580d2cf8f5SMika Westerberg 3590d2cf8f5SMika Westerberg /** 3600d2cf8f5SMika Westerberg * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver 3610d2cf8f5SMika Westerberg * @__acpi_driver: acpi_driver struct 3620d2cf8f5SMika Westerberg * 3630d2cf8f5SMika Westerberg * Helper macro for ACPI drivers which do not do anything special in module 3640d2cf8f5SMika Westerberg * init/exit. This eliminates a lot of boilerplate. Each module may only 3650d2cf8f5SMika Westerberg * use this macro once, and calling it replaces module_init() and module_exit() 3660d2cf8f5SMika Westerberg */ 3670d2cf8f5SMika Westerberg #define module_acpi_driver(__acpi_driver) \ 3680d2cf8f5SMika Westerberg module_driver(__acpi_driver, acpi_bus_register_driver, \ 3690d2cf8f5SMika Westerberg acpi_bus_unregister_driver) 3700d2cf8f5SMika Westerberg 3714e10d12aSDavid Shaohua Li /* 3724e10d12aSDavid Shaohua Li * Bind physical devices with ACPI devices 3734e10d12aSDavid Shaohua Li */ 3744e10d12aSDavid Shaohua Li struct acpi_bus_type { 3754e10d12aSDavid Shaohua Li struct list_head list; 3764e10d12aSDavid Shaohua Li struct bus_type *bus; 3774e10d12aSDavid Shaohua Li /* For general devices under the bus */ 3784e10d12aSDavid Shaohua Li int (*find_device) (struct device *, acpi_handle *); 3794e10d12aSDavid Shaohua Li /* For bridges, such as PCI root bridge, IDE controller */ 3804e10d12aSDavid Shaohua Li int (*find_bridge) (struct device *, acpi_handle *); 38111909ca1SRafael J. Wysocki void (*setup)(struct device *); 38211909ca1SRafael J. Wysocki void (*cleanup)(struct device *); 3834e10d12aSDavid Shaohua Li }; 3844e10d12aSDavid Shaohua Li int register_acpi_bus_type(struct acpi_bus_type *); 3854e10d12aSDavid Shaohua Li int unregister_acpi_bus_type(struct acpi_bus_type *); 38622c13f9dSThomas Renninger 38776d56de5SAlex Chiang struct acpi_pci_root { 38876d56de5SAlex Chiang struct list_head node; 38976d56de5SAlex Chiang struct acpi_device * device; 39076d56de5SAlex Chiang struct pci_bus *bus; 39176d56de5SAlex Chiang u16 segment; 3926ad95513SBjorn Helgaas struct resource secondary; /* downstream bus range */ 39376d56de5SAlex Chiang 39476d56de5SAlex Chiang u32 osc_support_set; /* _OSC state of support bits */ 39576d56de5SAlex Chiang u32 osc_control_set; /* _OSC state of control bits */ 396f4b57a3bSJiang Liu phys_addr_t mcfg_addr; 39776d56de5SAlex Chiang }; 39876d56de5SAlex Chiang 3994e10d12aSDavid Shaohua Li /* helper */ 400439913ffSLin Ming acpi_handle acpi_get_child(acpi_handle, u64); 40127558203SAlexander Chiang int acpi_is_root_bridge(acpi_handle); 4024e10d12aSDavid Shaohua Li acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int); 40376d56de5SAlex Chiang struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); 40495f8a082SRafael J. Wysocki #define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)ACPI_HANDLE(dev)) 4054e10d12aSDavid Shaohua Li 406b67ea761SRafael J. Wysocki int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state); 407b67ea761SRafael J. Wysocki int acpi_disable_wakeup_device_power(struct acpi_device *dev); 408b67ea761SRafael J. Wysocki 409aa338601SRafael J. Wysocki #ifdef CONFIG_PM 410ec2cd81cSRafael J. Wysocki acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 411ec2cd81cSRafael J. Wysocki acpi_notify_handler handler, void *context); 412ec2cd81cSRafael J. Wysocki acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, 413ec2cd81cSRafael J. Wysocki acpi_notify_handler handler); 41486b3832cSRafael J. Wysocki int acpi_device_power_state(struct device *dev, struct acpi_device *adev, 41586b3832cSRafael J. Wysocki u32 target_state, int d_max_in, int *d_min_p); 416ee85f543SHuang Ying int acpi_pm_device_sleep_state(struct device *, int *, int); 417761afb86SRafael J. Wysocki #else 418ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev, 419ec2cd81cSRafael J. Wysocki acpi_notify_handler handler, 420ec2cd81cSRafael J. Wysocki void *context) 421ec2cd81cSRafael J. Wysocki { 422ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 423ec2cd81cSRafael J. Wysocki } 424ec2cd81cSRafael J. Wysocki static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev, 425ec2cd81cSRafael J. Wysocki acpi_notify_handler handler) 426ec2cd81cSRafael J. Wysocki { 427ec2cd81cSRafael J. Wysocki return AE_SUPPORT; 428ec2cd81cSRafael J. Wysocki } 42986b3832cSRafael J. Wysocki static inline int __acpi_device_power_state(int m, int *p) 430296699deSRafael J. Wysocki { 431296699deSRafael J. Wysocki if (p) 432296699deSRafael J. Wysocki *p = ACPI_STATE_D0; 433ee85f543SHuang Ying return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3) ? m : ACPI_STATE_D0; 434296699deSRafael J. Wysocki } 43586b3832cSRafael J. Wysocki static inline int acpi_device_power_state(struct device *dev, 43686b3832cSRafael J. Wysocki struct acpi_device *adev, 43786b3832cSRafael J. Wysocki u32 target_state, int d_max_in, 43886b3832cSRafael J. Wysocki int *d_min_p) 43986b3832cSRafael J. Wysocki { 44086b3832cSRafael J. Wysocki return __acpi_device_power_state(d_max_in, d_min_p); 44186b3832cSRafael J. Wysocki } 44286b3832cSRafael J. Wysocki static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m) 44386b3832cSRafael J. Wysocki { 44486b3832cSRafael J. Wysocki return __acpi_device_power_state(m, p); 44586b3832cSRafael J. Wysocki } 446761afb86SRafael J. Wysocki #endif 447761afb86SRafael J. Wysocki 448bdda27fbSRafael J. Wysocki #ifdef CONFIG_PM_RUNTIME 449dee8370cSRafael J. Wysocki int __acpi_device_run_wake(struct acpi_device *, bool); 450b24e5098SLin Ming int acpi_pm_device_run_wake(struct device *, bool); 451761afb86SRafael J. Wysocki #else 452dee8370cSRafael J. Wysocki static inline int __acpi_device_run_wake(struct acpi_device *adev, bool en) 453dee8370cSRafael J. Wysocki { 454dee8370cSRafael J. Wysocki return -ENODEV; 455dee8370cSRafael J. Wysocki } 456b24e5098SLin Ming static inline int acpi_pm_device_run_wake(struct device *dev, bool enable) 457b24e5098SLin Ming { 458b24e5098SLin Ming return -ENODEV; 459b24e5098SLin Ming } 460296699deSRafael J. Wysocki #endif 461296699deSRafael J. Wysocki 462296699deSRafael J. Wysocki #ifdef CONFIG_PM_SLEEP 463dee8370cSRafael J. Wysocki int __acpi_device_sleep_wake(struct acpi_device *, u32, bool); 464296699deSRafael J. Wysocki int acpi_pm_device_sleep_wake(struct device *, bool); 465f7a1b860SDavid Howells #else 466dee8370cSRafael J. Wysocki static inline int __acpi_device_sleep_wake(struct acpi_device *adev, 467dee8370cSRafael J. Wysocki u32 target_state, bool enable) 468f7a1b860SDavid Howells { 469f7a1b860SDavid Howells return -ENODEV; 470761afb86SRafael J. Wysocki } 471fd4aff1aSShaohua Li static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) 47276f58584SLen Brown { 4731da177e4SLinus Torvalds return -ENODEV; 4741da177e4SLinus Torvalds } 4751da177e4SLinus Torvalds #endif 4761da177e4SLinus Torvalds 47799926a8cSDavid Rientjes #ifdef CONFIG_ACPI_SLEEP 47899926a8cSDavid Rientjes u32 acpi_target_system_state(void); 47999926a8cSDavid Rientjes #else 48099926a8cSDavid Rientjes static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; } 48199926a8cSDavid Rientjes #endif 48299926a8cSDavid Rientjes 483078eb126SRafael J. Wysocki static inline bool acpi_device_power_manageable(struct acpi_device *adev) 484078eb126SRafael J. Wysocki { 485078eb126SRafael J. Wysocki return adev->flags.power_manageable; 486078eb126SRafael J. Wysocki } 487078eb126SRafael J. Wysocki 488078eb126SRafael J. Wysocki static inline bool acpi_device_can_wakeup(struct acpi_device *adev) 489078eb126SRafael J. Wysocki { 490078eb126SRafael J. Wysocki return adev->wakeup.flags.valid; 491078eb126SRafael J. Wysocki } 492078eb126SRafael J. Wysocki 4931399dfcdSAaron Lu static inline bool acpi_device_can_poweroff(struct acpi_device *adev) 4941399dfcdSAaron Lu { 4951399dfcdSAaron Lu return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible; 4961399dfcdSAaron Lu } 4971399dfcdSAaron Lu 49866886d6fSMatthew Garrett #else /* CONFIG_ACPI */ 49966886d6fSMatthew Garrett 5007ae30986SLen Brown static inline int register_acpi_bus_type(void *bus) { return 0; } 5017ae30986SLen Brown static inline int unregister_acpi_bus_type(void *bus) { return 0; } 50266886d6fSMatthew Garrett 5031da177e4SLinus Torvalds #endif /* CONFIG_ACPI */ 5041da177e4SLinus Torvalds 5051da177e4SLinus Torvalds #endif /*__ACPI_BUS_H__*/ 506