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 88int acpi_active_trip_temp(struct acpi_device *adev, int id, int *ret_temp); 89int acpi_passive_trip_temp(struct acpi_device *adev, int *ret_temp); 90int acpi_hot_trip_temp(struct acpi_device *adev, int *ret_temp); 91int acpi_critical_trip_temp(struct acpi_device *adev, int *ret_temp); 92 93#ifdef CONFIG_ARM64 94int acpi_arch_thermal_cpufreq_pctg(void); 95#else 96static inline int acpi_arch_thermal_cpufreq_pctg(void) 97{ 98 return 0; 99} 100#endif 101 102/* -------------------------------------------------------------------------- 103 Device Node Initialization / Removal 104 -------------------------------------------------------------------------- */ 105#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 106 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 107 108extern struct list_head acpi_bus_id_list; 109 110struct acpi_device_bus_id { 111 const char *bus_id; 112 struct ida instance_ida; 113 struct list_head node; 114}; 115 116void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 117 int type, void (*release)(struct device *)); 118int acpi_tie_acpi_dev(struct acpi_device *adev); 119int acpi_device_add(struct acpi_device *device); 120int acpi_device_setup_files(struct acpi_device *dev); 121void acpi_device_remove_files(struct acpi_device *dev); 122void acpi_device_add_finalize(struct acpi_device *device); 123void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 124bool acpi_device_is_enabled(const struct acpi_device *adev); 125bool acpi_device_is_present(const struct acpi_device *adev); 126bool acpi_device_is_battery(struct acpi_device *adev); 127bool acpi_device_is_first_physical_node(struct acpi_device *adev, 128 const struct device *dev); 129int acpi_bus_register_early_device(int type); 130 131/* -------------------------------------------------------------------------- 132 Device Matching and Notification 133 -------------------------------------------------------------------------- */ 134const struct acpi_device *acpi_companion_match(const struct device *dev); 135int __acpi_device_uevent_modalias(const struct acpi_device *adev, 136 struct kobj_uevent_env *env); 137 138/* -------------------------------------------------------------------------- 139 Power Resource 140 -------------------------------------------------------------------------- */ 141void acpi_power_resources_list_free(struct list_head *list); 142int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 143 struct list_head *list); 144struct acpi_device *acpi_add_power_resource(acpi_handle handle); 145void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 146int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 147int acpi_device_sleep_wake(struct acpi_device *dev, 148 int enable, int sleep_state, int dev_state); 149int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 150int acpi_power_on_resources(struct acpi_device *device, int state); 151int acpi_power_transition(struct acpi_device *device, int state); 152void acpi_turn_off_unused_power_resources(void); 153 154/* -------------------------------------------------------------------------- 155 Device Power Management 156 -------------------------------------------------------------------------- */ 157int acpi_device_get_power(struct acpi_device *device, int *state); 158int acpi_wakeup_device_init(void); 159 160/* -------------------------------------------------------------------------- 161 Processor 162 -------------------------------------------------------------------------- */ 163#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 164void acpi_early_processor_control_setup(void); 165void acpi_early_processor_set_pdc(void); 166#ifdef CONFIG_X86 167void acpi_proc_quirk_mwait_check(void); 168#else 169static inline void acpi_proc_quirk_mwait_check(void) {} 170#endif 171bool processor_physically_present(acpi_handle handle); 172#else 173static inline void acpi_early_processor_control_setup(void) {} 174#endif 175 176/* -------------------------------------------------------------------------- 177 Embedded Controller 178 -------------------------------------------------------------------------- */ 179 180enum acpi_ec_event_state { 181 EC_EVENT_READY = 0, /* Event work can be submitted */ 182 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */ 183 EC_EVENT_COMPLETE, /* Event work processing has completed */ 184}; 185 186struct acpi_ec { 187 acpi_handle handle; 188 acpi_handle address_space_handler_holder; 189 int gpe; 190 int irq; 191 unsigned long command_addr; 192 unsigned long data_addr; 193 bool global_lock; 194 unsigned long flags; 195 unsigned long reference_count; 196 struct mutex mutex; 197 wait_queue_head_t wait; 198 struct list_head list; 199 struct transaction *curr; 200 spinlock_t lock; 201 struct work_struct work; 202 unsigned long timestamp; 203 enum acpi_ec_event_state event_state; 204 unsigned int events_to_process; 205 unsigned int events_in_progress; 206 unsigned int queries_in_progress; 207 bool busy_polling; 208 unsigned int polling_guard; 209}; 210 211extern struct acpi_ec *first_ec; 212 213/* If we find an EC via the ECDT, we need to keep a ptr to its context */ 214/* External interfaces use first EC only, so remember */ 215typedef int (*acpi_ec_query_func) (void *data); 216 217void acpi_ec_init(void); 218void acpi_ec_ecdt_probe(void); 219void acpi_ec_dsdt_probe(void); 220void acpi_ec_block_transactions(void); 221void acpi_ec_unblock_transactions(void); 222int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 223 acpi_handle handle, acpi_ec_query_func func, 224 void *data); 225void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 226 227#ifdef CONFIG_PM_SLEEP 228void acpi_ec_flush_work(void); 229bool acpi_ec_dispatch_gpe(void); 230#endif 231 232 233/*-------------------------------------------------------------------------- 234 Suspend/Resume 235 -------------------------------------------------------------------------- */ 236#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 237extern bool acpi_s2idle_wakeup(void); 238extern int acpi_sleep_init(void); 239#else 240static inline bool acpi_s2idle_wakeup(void) { return false; } 241static inline int acpi_sleep_init(void) { return -ENXIO; } 242#endif 243 244#ifdef CONFIG_ACPI_SLEEP 245void acpi_sleep_proc_init(void); 246int suspend_nvs_alloc(void); 247void suspend_nvs_free(void); 248int suspend_nvs_save(void); 249void suspend_nvs_restore(void); 250#else 251static inline void acpi_sleep_proc_init(void) {} 252static inline int suspend_nvs_alloc(void) { return 0; } 253static inline void suspend_nvs_free(void) {} 254static inline int suspend_nvs_save(void) { return 0; } 255static inline void suspend_nvs_restore(void) {} 256#endif 257 258#ifdef CONFIG_X86 259bool force_storage_d3(void); 260#else 261static inline bool force_storage_d3(void) 262{ 263 return false; 264} 265#endif 266 267/*-------------------------------------------------------------------------- 268 Device properties 269 -------------------------------------------------------------------------- */ 270#define ACPI_DT_NAMESPACE_HID "PRP0001" 271 272void acpi_init_properties(struct acpi_device *adev); 273void acpi_free_properties(struct acpi_device *adev); 274 275#ifdef CONFIG_X86 276void acpi_extract_apple_properties(struct acpi_device *adev); 277#else 278static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 279#endif 280 281/*-------------------------------------------------------------------------- 282 Watchdog 283 -------------------------------------------------------------------------- */ 284 285#ifdef CONFIG_ACPI_WATCHDOG 286void acpi_watchdog_init(void); 287#else 288static inline void acpi_watchdog_init(void) {} 289#endif 290 291#ifdef CONFIG_ACPI_LPIT 292void acpi_init_lpit(void); 293#else 294static inline void acpi_init_lpit(void) { } 295#endif 296 297/*-------------------------------------------------------------------------- 298 ACPI _CRS CSI-2 and MIPI DisCo for Imaging 299 -------------------------------------------------------------------------- */ 300 301void acpi_mipi_check_crs_csi2(acpi_handle handle); 302void acpi_mipi_scan_crs_csi2(void); 303void acpi_mipi_init_crs_csi2_swnodes(void); 304void acpi_mipi_crs_csi2_cleanup(void); 305bool acpi_graph_ignore_port(acpi_handle handle); 306 307#endif /* _ACPI_INTERNAL_H_ */ 308