internal.h (9766B)
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 14int early_acpi_osi_init(void); 15int acpi_osi_init(void); 16acpi_status acpi_os_initialize1(void); 17void acpi_scan_init(void); 18#ifdef CONFIG_PCI 19void acpi_pci_root_init(void); 20void acpi_pci_link_init(void); 21#else 22static inline void acpi_pci_root_init(void) {} 23static inline void acpi_pci_link_init(void) {} 24#endif 25void acpi_processor_init(void); 26void acpi_platform_init(void); 27void acpi_pnp_init(void); 28void acpi_int340x_thermal_init(void); 29#ifdef CONFIG_ARM_AMBA 30void acpi_amba_init(void); 31#else 32static inline void acpi_amba_init(void) {} 33#endif 34int acpi_sysfs_init(void); 35void acpi_gpe_apply_masked_gpes(void); 36void acpi_container_init(void); 37void acpi_memory_hotplug_init(void); 38#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC 39void pci_ioapic_remove(struct acpi_pci_root *root); 40int acpi_ioapic_remove(struct acpi_pci_root *root); 41#else 42static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } 43static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } 44#endif 45#ifdef CONFIG_ACPI_DOCK 46void register_dock_dependent_device(struct acpi_device *adev, 47 acpi_handle dshandle); 48int dock_notify(struct acpi_device *adev, u32 event); 49void acpi_dock_add(struct acpi_device *adev); 50#else 51static inline void register_dock_dependent_device(struct acpi_device *adev, 52 acpi_handle dshandle) {} 53static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } 54static inline void acpi_dock_add(struct acpi_device *adev) {} 55#endif 56#ifdef CONFIG_X86 57void acpi_cmos_rtc_init(void); 58#else 59static inline void acpi_cmos_rtc_init(void) {} 60#endif 61int acpi_rev_override_setup(char *str); 62 63void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, 64 const char *name); 65int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, 66 const char *hotplug_profile_name); 67void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); 68 69#ifdef CONFIG_DEBUG_FS 70extern struct dentry *acpi_debugfs_dir; 71void acpi_debugfs_init(void); 72#else 73static inline void acpi_debugfs_init(void) { return; } 74#endif 75#ifdef CONFIG_PCI 76void acpi_lpss_init(void); 77#else 78static inline void acpi_lpss_init(void) {} 79#endif 80 81void acpi_apd_init(void); 82 83acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); 84bool acpi_queue_hotplug_work(struct work_struct *work); 85void acpi_device_hotplug(struct acpi_device *adev, u32 src); 86bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); 87 88acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); 89void acpi_scan_table_notify(void); 90 91/* -------------------------------------------------------------------------- 92 Device Node Initialization / Removal 93 -------------------------------------------------------------------------- */ 94#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ 95 ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) 96 97extern struct list_head acpi_bus_id_list; 98 99struct acpi_device_bus_id { 100 const char *bus_id; 101 struct ida instance_ida; 102 struct list_head node; 103}; 104 105int acpi_device_add(struct acpi_device *device, 106 void (*release)(struct device *)); 107void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, 108 int type); 109int acpi_device_setup_files(struct acpi_device *dev); 110void acpi_device_remove_files(struct acpi_device *dev); 111void acpi_device_add_finalize(struct acpi_device *device); 112void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); 113bool acpi_device_is_present(const struct acpi_device *adev); 114bool acpi_device_is_battery(struct acpi_device *adev); 115bool acpi_device_is_first_physical_node(struct acpi_device *adev, 116 const struct device *dev); 117int acpi_bus_register_early_device(int type); 118 119/* -------------------------------------------------------------------------- 120 Device Matching and Notification 121 -------------------------------------------------------------------------- */ 122struct acpi_device *acpi_companion_match(const struct device *dev); 123int __acpi_device_uevent_modalias(struct acpi_device *adev, 124 struct kobj_uevent_env *env); 125 126/* -------------------------------------------------------------------------- 127 Power Resource 128 -------------------------------------------------------------------------- */ 129int acpi_power_init(void); 130void acpi_power_resources_list_free(struct list_head *list); 131int acpi_extract_power_resources(union acpi_object *package, unsigned int start, 132 struct list_head *list); 133struct acpi_device *acpi_add_power_resource(acpi_handle handle); 134void acpi_power_add_remove_device(struct acpi_device *adev, bool add); 135int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); 136int acpi_device_sleep_wake(struct acpi_device *dev, 137 int enable, int sleep_state, int dev_state); 138int acpi_power_get_inferred_state(struct acpi_device *device, int *state); 139int acpi_power_on_resources(struct acpi_device *device, int state); 140int acpi_power_transition(struct acpi_device *device, int state); 141void acpi_turn_off_unused_power_resources(void); 142 143/* -------------------------------------------------------------------------- 144 Device Power Management 145 -------------------------------------------------------------------------- */ 146int acpi_device_get_power(struct acpi_device *device, int *state); 147int acpi_wakeup_device_init(void); 148 149/* -------------------------------------------------------------------------- 150 Processor 151 -------------------------------------------------------------------------- */ 152#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC 153void acpi_early_processor_set_pdc(void); 154#else 155static inline void acpi_early_processor_set_pdc(void) {} 156#endif 157 158#ifdef CONFIG_X86 159void acpi_early_processor_osc(void); 160#else 161static inline void acpi_early_processor_osc(void) {} 162#endif 163 164/* -------------------------------------------------------------------------- 165 Embedded Controller 166 -------------------------------------------------------------------------- */ 167 168enum acpi_ec_event_state { 169 EC_EVENT_READY = 0, /* Event work can be submitted */ 170 EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */ 171 EC_EVENT_COMPLETE, /* Event work processing has completed */ 172}; 173 174struct acpi_ec { 175 acpi_handle handle; 176 int gpe; 177 int irq; 178 unsigned long command_addr; 179 unsigned long data_addr; 180 bool global_lock; 181 unsigned long flags; 182 unsigned long reference_count; 183 struct mutex mutex; 184 wait_queue_head_t wait; 185 struct list_head list; 186 struct transaction *curr; 187 spinlock_t lock; 188 struct work_struct work; 189 unsigned long timestamp; 190 enum acpi_ec_event_state event_state; 191 unsigned int events_to_process; 192 unsigned int events_in_progress; 193 unsigned int queries_in_progress; 194 bool busy_polling; 195 unsigned int polling_guard; 196}; 197 198extern struct acpi_ec *first_ec; 199 200/* If we find an EC via the ECDT, we need to keep a ptr to its context */ 201/* External interfaces use first EC only, so remember */ 202typedef int (*acpi_ec_query_func) (void *data); 203 204void acpi_ec_init(void); 205void acpi_ec_ecdt_probe(void); 206void acpi_ec_dsdt_probe(void); 207void acpi_ec_block_transactions(void); 208void acpi_ec_unblock_transactions(void); 209int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, 210 acpi_handle handle, acpi_ec_query_func func, 211 void *data); 212void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); 213 214#ifdef CONFIG_PM_SLEEP 215void acpi_ec_flush_work(void); 216bool acpi_ec_dispatch_gpe(void); 217#endif 218 219 220/*-------------------------------------------------------------------------- 221 Suspend/Resume 222 -------------------------------------------------------------------------- */ 223#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT 224extern bool acpi_s2idle_wakeup(void); 225extern int acpi_sleep_init(void); 226#else 227static inline bool acpi_s2idle_wakeup(void) { return false; } 228static inline int acpi_sleep_init(void) { return -ENXIO; } 229#endif 230 231#ifdef CONFIG_ACPI_SLEEP 232void acpi_sleep_proc_init(void); 233int suspend_nvs_alloc(void); 234void suspend_nvs_free(void); 235int suspend_nvs_save(void); 236void suspend_nvs_restore(void); 237#else 238static inline void acpi_sleep_proc_init(void) {} 239static inline int suspend_nvs_alloc(void) { return 0; } 240static inline void suspend_nvs_free(void) {} 241static inline int suspend_nvs_save(void) { return 0; } 242static inline void suspend_nvs_restore(void) {} 243#endif 244 245#ifdef CONFIG_X86 246bool force_storage_d3(void); 247#else 248static inline bool force_storage_d3(void) 249{ 250 return false; 251} 252#endif 253 254/*-------------------------------------------------------------------------- 255 Device properties 256 -------------------------------------------------------------------------- */ 257#define ACPI_DT_NAMESPACE_HID "PRP0001" 258 259void acpi_init_properties(struct acpi_device *adev); 260void acpi_free_properties(struct acpi_device *adev); 261 262#ifdef CONFIG_X86 263void acpi_extract_apple_properties(struct acpi_device *adev); 264#else 265static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} 266#endif 267 268/*-------------------------------------------------------------------------- 269 Watchdog 270 -------------------------------------------------------------------------- */ 271 272#ifdef CONFIG_ACPI_WATCHDOG 273void acpi_watchdog_init(void); 274#else 275static inline void acpi_watchdog_init(void) {} 276#endif 277 278#ifdef CONFIG_ACPI_LPIT 279void acpi_init_lpit(void); 280#else 281static inline void acpi_init_lpit(void) { } 282#endif 283 284#endif /* _ACPI_INTERNAL_H_ */