diff options
Diffstat (limited to 'drivers/acpi/internal.h')
| -rw-r--r-- | drivers/acpi/internal.h | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h new file mode 100644 index 000000000..219c02df9 --- /dev/null +++ b/drivers/acpi/internal.h @@ -0,0 +1,284 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * acpi/internal.h + * For use by Linux/ACPI infrastructure, not drivers + * + * Copyright (c) 2009, Intel Corporation. + */ + +#ifndef _ACPI_INTERNAL_H_ +#define _ACPI_INTERNAL_H_ + +#include <linux/idr.h> + +int early_acpi_osi_init(void); +int acpi_osi_init(void); +acpi_status acpi_os_initialize1(void); +void acpi_scan_init(void); +#ifdef CONFIG_PCI +void acpi_pci_root_init(void); +void acpi_pci_link_init(void); +#else +static inline void acpi_pci_root_init(void) {} +static inline void acpi_pci_link_init(void) {} +#endif +void acpi_processor_init(void); +void acpi_platform_init(void); +void acpi_pnp_init(void); +void acpi_int340x_thermal_init(void); +#ifdef CONFIG_ARM_AMBA +void acpi_amba_init(void); +#else +static inline void acpi_amba_init(void) {} +#endif +int acpi_sysfs_init(void); +void acpi_gpe_apply_masked_gpes(void); +void acpi_container_init(void); +void acpi_memory_hotplug_init(void); +#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +void pci_ioapic_remove(struct acpi_pci_root *root); +int acpi_ioapic_remove(struct acpi_pci_root *root); +#else +static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } +static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } +#endif +#ifdef CONFIG_ACPI_DOCK +void register_dock_dependent_device(struct acpi_device *adev, + acpi_handle dshandle); +int dock_notify(struct acpi_device *adev, u32 event); +void acpi_dock_add(struct acpi_device *adev); +#else +static inline void register_dock_dependent_device(struct acpi_device *adev, + acpi_handle dshandle) {} +static inline int dock_notify(struct acpi_device *adev, u32 event) { return -ENODEV; } +static inline void acpi_dock_add(struct acpi_device *adev) {} +#endif +#ifdef CONFIG_X86 +void acpi_cmos_rtc_init(void); +#else +static inline void acpi_cmos_rtc_init(void) {} +#endif +int acpi_rev_override_setup(char *str); + +void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, + const char *name); +int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, + const char *hotplug_profile_name); +void acpi_scan_hotplug_enabled(struct acpi_hotplug_profile *hotplug, bool val); + +#ifdef CONFIG_DEBUG_FS +extern struct dentry *acpi_debugfs_dir; +void acpi_debugfs_init(void); +#else +static inline void acpi_debugfs_init(void) { return; } +#endif +#ifdef CONFIG_PCI +void acpi_lpss_init(void); +#else +static inline void acpi_lpss_init(void) {} +#endif + +void acpi_apd_init(void); + +acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); +bool acpi_queue_hotplug_work(struct work_struct *work); +void acpi_device_hotplug(struct acpi_device *adev, u32 src); +bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); + +acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); +void acpi_scan_table_notify(void); + +/* -------------------------------------------------------------------------- + Device Node Initialization / Removal + -------------------------------------------------------------------------- */ +#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ + ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) + +extern struct list_head acpi_bus_id_list; + +struct acpi_device_bus_id { + const char *bus_id; + struct ida instance_ida; + struct list_head node; +}; + +void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, + int type, void (*release)(struct device *)); +int acpi_tie_acpi_dev(struct acpi_device *adev); +int acpi_device_add(struct acpi_device *device); +int acpi_device_setup_files(struct acpi_device *dev); +void acpi_device_remove_files(struct acpi_device *dev); +void acpi_device_add_finalize(struct acpi_device *device); +void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); +bool acpi_device_is_present(const struct acpi_device *adev); +bool acpi_device_is_battery(struct acpi_device *adev); +bool acpi_device_is_first_physical_node(struct acpi_device *adev, + const struct device *dev); +int acpi_bus_register_early_device(int type); + +/* -------------------------------------------------------------------------- + Device Matching and Notification + -------------------------------------------------------------------------- */ +struct acpi_device *acpi_companion_match(const struct device *dev); +int __acpi_device_uevent_modalias(struct acpi_device *adev, + struct kobj_uevent_env *env); + +/* -------------------------------------------------------------------------- + Power Resource + -------------------------------------------------------------------------- */ +int acpi_power_init(void); +void acpi_power_resources_list_free(struct list_head *list); +int acpi_extract_power_resources(union acpi_object *package, unsigned int start, + struct list_head *list); +struct acpi_device *acpi_add_power_resource(acpi_handle handle); +void acpi_power_add_remove_device(struct acpi_device *adev, bool add); +int acpi_power_wakeup_list_init(struct list_head *list, int *system_level); +int acpi_device_sleep_wake(struct acpi_device *dev, + int enable, int sleep_state, int dev_state); +int acpi_power_get_inferred_state(struct acpi_device *device, int *state); +int acpi_power_on_resources(struct acpi_device *device, int state); +int acpi_power_transition(struct acpi_device *device, int state); +void acpi_turn_off_unused_power_resources(void); + +/* -------------------------------------------------------------------------- + Device Power Management + -------------------------------------------------------------------------- */ +int acpi_device_get_power(struct acpi_device *device, int *state); +int acpi_wakeup_device_init(void); + +/* -------------------------------------------------------------------------- + Processor + -------------------------------------------------------------------------- */ +#ifdef CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC +void acpi_early_processor_set_pdc(void); +#else +static inline void acpi_early_processor_set_pdc(void) {} +#endif + +#ifdef CONFIG_X86 +void acpi_early_processor_osc(void); +#else +static inline void acpi_early_processor_osc(void) {} +#endif + +/* -------------------------------------------------------------------------- + Embedded Controller + -------------------------------------------------------------------------- */ + +enum acpi_ec_event_state { + EC_EVENT_READY = 0, /* Event work can be submitted */ + EC_EVENT_IN_PROGRESS, /* Event work is pending or being processed */ + EC_EVENT_COMPLETE, /* Event work processing has completed */ +}; + +struct acpi_ec { + acpi_handle handle; + int gpe; + int irq; + unsigned long command_addr; + unsigned long data_addr; + bool global_lock; + unsigned long flags; + unsigned long reference_count; + struct mutex mutex; + wait_queue_head_t wait; + struct list_head list; + struct transaction *curr; + spinlock_t lock; + struct work_struct work; + unsigned long timestamp; + enum acpi_ec_event_state event_state; + unsigned int events_to_process; + unsigned int events_in_progress; + unsigned int queries_in_progress; + bool busy_polling; + unsigned int polling_guard; +}; + +extern struct acpi_ec *first_ec; + +/* If we find an EC via the ECDT, we need to keep a ptr to its context */ +/* External interfaces use first EC only, so remember */ +typedef int (*acpi_ec_query_func) (void *data); + +void acpi_ec_init(void); +void acpi_ec_ecdt_probe(void); +void acpi_ec_dsdt_probe(void); +void acpi_ec_block_transactions(void); +void acpi_ec_unblock_transactions(void); +int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, + acpi_handle handle, acpi_ec_query_func func, + void *data); +void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); + +#ifdef CONFIG_PM_SLEEP +void acpi_ec_flush_work(void); +bool acpi_ec_dispatch_gpe(void); +#endif + + +/*-------------------------------------------------------------------------- + Suspend/Resume + -------------------------------------------------------------------------- */ +#ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT +extern bool acpi_s2idle_wakeup(void); +extern int acpi_sleep_init(void); +#else +static inline bool acpi_s2idle_wakeup(void) { return false; } +static inline int acpi_sleep_init(void) { return -ENXIO; } +#endif + +#ifdef CONFIG_ACPI_SLEEP +void acpi_sleep_proc_init(void); +int suspend_nvs_alloc(void); +void suspend_nvs_free(void); +int suspend_nvs_save(void); +void suspend_nvs_restore(void); +#else +static inline void acpi_sleep_proc_init(void) {} +static inline int suspend_nvs_alloc(void) { return 0; } +static inline void suspend_nvs_free(void) {} +static inline int suspend_nvs_save(void) { return 0; } +static inline void suspend_nvs_restore(void) {} +#endif + +#ifdef CONFIG_X86 +bool force_storage_d3(void); +#else +static inline bool force_storage_d3(void) +{ + return false; +} +#endif + +/*-------------------------------------------------------------------------- + Device properties + -------------------------------------------------------------------------- */ +#define ACPI_DT_NAMESPACE_HID "PRP0001" + +void acpi_init_properties(struct acpi_device *adev); +void acpi_free_properties(struct acpi_device *adev); + +#ifdef CONFIG_X86 +void acpi_extract_apple_properties(struct acpi_device *adev); +#else +static inline void acpi_extract_apple_properties(struct acpi_device *adev) {} +#endif + +/*-------------------------------------------------------------------------- + Watchdog + -------------------------------------------------------------------------- */ + +#ifdef CONFIG_ACPI_WATCHDOG +void acpi_watchdog_init(void); +#else +static inline void acpi_watchdog_init(void) {} +#endif + +#ifdef CONFIG_ACPI_LPIT +void acpi_init_lpit(void); +#else +static inline void acpi_init_lpit(void) { } +#endif + +#endif /* _ACPI_INTERNAL_H_ */ |