1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * acpi/internal.h 4 * For use by Linux/ACPI infrastructure, not drivers 5 * 6 * Copyright (c) 2009, Intel Corporation. 7 */ 8 9#ifndef _ACPI_INTERNAL_H_ 10#define _ACPI_INTERNAL_H_ 11 12#include <linux/idr.h> 13 14extern struct acpi_device *acpi_root; 15 16int early_acpi_osi_init(void); 17int acpi_osi_init(void); 18acpi_status acpi_os_initialize1(void); 19void acpi_scan_init(void); 20#ifdef CONFIG_PCI 21void acpi_pci_root_init(void); 22void acpi_pci_link_init(void); 23#else 24static inline void acpi_pci_root_init(void) {} 25static inline void acpi_pci_link_init(void) {} 26#endif 27void acpi_processor_init(void); 28void acpi_platform_init(void); 29void acpi_pnp_init(void); 30void acpi_int340x_thermal_init(void); 31int acpi_sysfs_init(void); 32void acpi_gpe_apply_masked_gpes(void); 33void acpi_container_init(void); 34void acpi_memory_hotplug_init(void); 35#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 36void pci_ioapic_remove(struct acpi_pci_root *root); 37int acpi_ioapic_remove(struct acpi_pci_root *root); 38#else 39static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } 40static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 41#endif 42#ifdef CONFIG_ACPI_DOCK 43void register_dock_dependent_device(struct acpi_device *adev, 44 acpi_handle dshandle); 45int dock_notify(struct acpi_device *adev, u32 event); 46void acpi_dock_add(struct acpi_device *adev); 47#else 48static inline void register_dock_dependent_device(struct acpi_device *adev, 49 acpi_handle dshandle) {} 50static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 51static inline void acpi_dock_add(struct acpi_device *adev) {} 52#endif 53#ifdef CONFIG_X86 54void acpi_cmos_rtc_init(void); 55#else 56static inline void acpi_cmos_rtc_init(void) {} 57#endif 58int acpi_rev_override_setup(char *str); 59 60void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 61 const char *name); 62int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 63 const char *hotplug_profile_name); 64void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 65 66#ifdef CONFIG_DEBUG_FS 67extern struct dentry *acpi_debugfs_dir; 68void acpi_debugfs_init(void); 69#else 70static inline void acpi_debugfs_init(void) { return; } 71#endif 72#ifdef CONFIG_PCI 73void acpi_lpss_init(void); 74#else 75static inline void acpi_lpss_init(void) {} 76#endif 77 78void acpi_apd_init(void); 79 80acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 81bool acpi_queue_hotplug_work(struct work_struct *work); 82void acpi_device_hotplug(struct acpi_device *adev, u32 src); 83bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 84 85acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 86void acpi_scan_table_notify(void); 87 88/* -------------------------------------------------------------------------- 89 Device Node Initialization / Removal 90 -------------------------------------------------------------------------- */ 91#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 92 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 93 94extern struct list_head acpi_bus_id_list; 95 96struct acpi_device_bus_id { 97 const char *bus_id; 98 struct ida instance_ida; 99 struct list_head node; 100}; 101 102void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 103 int type, void (*release)(struct device *)); 104int acpi_tie_acpi_dev(struct acpi_device *adev); 105int acpi_device_add(struct acpi_device *device); 106int acpi_device_setup_files(struct acpi_device *dev); 107void acpi_device_remove_files(struct acpi_device *dev); 108void acpi_device_add_finalize(struct acpi_device *device); 109void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 110bool acpi_device_is_present(const struct acpi_device *adev); 111bool acpi_device_is_battery(struct acpi_device *adev); 112bool acpi_device_is_first_physical_node(struct acpi_device *adev, 113 const struct device *dev); 114int acpi_bus_register_early_device(int type); 115 116/* -------------------------------------------------------------------------- 117 Device Matching and Notification 118 -------------------------------------------------------------------------- */ 119const struct acpi_device *acpi_companion_match(const struct device *dev); 120int __acpi_device_uevent_modalias(const struct acpi_device *adev, 121 struct kobj_uevent_env *env); 122 123/* -------------------------------------------------------------------------- 124 Power Resource 125 -------------------------------------------------------------------------- */ 126void acpi_power_resources_list_free(struct list_head *list); 127int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 128 struct list_head *list); 129struct acpi_device *acpi_add_power_resource(acpi_handle handle); 130void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 131int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 132int acpi_device_sleep_wake(struct acpi_device *dev, 133 int enable, int sleep_state, int dev_state); 134int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 135int acpi_power_on_resources(struct acpi_device *device, int state); 136int acpi_power_transition(struct acpi_device *device, int state); 137void acpi_turn_off_unused_power_resources(void); 138 139/* -------------------------------------------------------------------------- 140 Device Power Management 141 -------------------------------------------------------------------------- */ 142int acpi_device_get_power(struct acpi_device *device, int *state); 143int acpi_wakeup_device_init(void); 144 145/* -------------------------------------------------------------------------- 146 Processor 147 -------------------------------------------------------------------------- */ 148#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 149void acpi_early_processor_control_setup(void); 150void acpi_early_processor_set_pdc(void); 151 152void acpi_proc_quirk_mwait_check(void); 153bool processor_physically_present(acpi_handle handle); 154#else 155static inline void acpi_early_processor_control_setup(void) {} 156#endif 157 158/* -------------------------------------------------------------------------- 159 Embedded Controller 160 -------------------------------------------------------------------------- */ 161 162enum acpi_ec_event_state { 163 EC_EVENT_READY = 0, /* Event work can be submitted */ 164 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */ 165 EC_EVENT_COMPLETE, /* Event work processing has completed */ 166}; 167 168struct acpi_ec { 169 acpi_handle handle; 170 acpi_handle address_space_handler_holder; 171 int gpe; 172 int irq; 173 unsigned long command_addr; 174 unsigned long data_addr; 175 bool global_lock; 176 unsigned long flags; 177 unsigned long reference_count; 178 struct mutex mutex; 179 wait_queue_head_t wait; 180 struct list_head list; 181 struct transaction *curr; 182 spinlock_t lock; 183 struct work_struct work; 184 unsigned long timestamp; 185 enum acpi_ec_event_state event_state; 186 unsigned int events_to_process; 187 unsigned int events_in_progress; 188 unsigned int queries_in_progress; 189 bool busy_polling; 190 unsigned int polling_guard; 191}; 192 193extern struct acpi_ec *first_ec; 194 195/* If we find an EC via the ECDT, we need to keep a ptr to its context */ 196/* External interfaces use first EC only, so remember */ 197typedef int (*acpi_ec_query_func) (void *data); 198 199void acpi_ec_init(void); 200void acpi_ec_ecdt_probe(void); 201void acpi_ec_dsdt_probe(void); 202void acpi_ec_block_transactions(void); 203void acpi_ec_unblock_transactions(void); 204int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 205 acpi_handle handle, acpi_ec_query_func func, 206 void *data); 207void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 208 209#ifdef CONFIG_PM_SLEEP 210void acpi_ec_flush_work(void); 211bool acpi_ec_dispatch_gpe(void); 212#endif 213 214 215/*-------------------------------------------------------------------------- 216 Suspend/Resume 217 -------------------------------------------------------------------------- */ 218#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 219extern bool acpi_s2idle_wakeup(void); 220extern int acpi_sleep_init(void); 221#else 222static inline bool acpi_s2idle_wakeup(void) { return false; } 223static inline int acpi_sleep_init(void) { return -ENXIO; } 224#endif 225 226#ifdef CONFIG_ACPI_SLEEP 227void acpi_sleep_proc_init(void); 228int suspend_nvs_alloc(void); 229void suspend_nvs_free(void); 230int suspend_nvs_save(void); 231void suspend_nvs_restore(void); 232#else 233static inline void acpi_sleep_proc_init(void) {} 234static inline int suspend_nvs_alloc(void) { return 0; } 235static inline void suspend_nvs_free(void) {} 236static inline int suspend_nvs_save(void) { return 0; } 237static inline void suspend_nvs_restore(void) {} 238#endif 239 240#ifdef CONFIG_X86 241bool force_storage_d3(void); 242#else 243static inline bool force_storage_d3(void) 244{ 245 return false; 246} 247#endif 248 249/*-------------------------------------------------------------------------- 250 Device properties 251 -------------------------------------------------------------------------- */ 252#define ACPI_DT_NAMESPACE_HID "PRP0001" 253 254void acpi_init_properties(struct acpi_device *adev); 255void acpi_free_properties(struct acpi_device *adev); 256 257#ifdef CONFIG_X86 258void acpi_extract_apple_properties(struct acpi_device *adev); 259#else 260static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 261#endif 262 263/*-------------------------------------------------------------------------- 264 Watchdog 265 -------------------------------------------------------------------------- */ 266 267#ifdef CONFIG_ACPI_WATCHDOG 268void acpi_watchdog_init(void); 269#else 270static inline void acpi_watchdog_init(void) {} 271#endif 272 273#ifdef CONFIG_ACPI_LPIT 274void acpi_init_lpit(void); 275#else 276static inline void acpi_init_lpit(void) { } 277#endif 278 279#endif /* _ACPI_INTERNAL_H_ */ 280