drivers/acpi/acpica/acevents.h

Source file repositories/reference/linux-study-clean/drivers/acpi/acpica/acevents.h

File Facts

System
Linux kernel
Corpus path
drivers/acpi/acpica/acevents.h
Extension
.h
Size
7141 bytes
Lines
253
Domain
Driver Families
Bucket
drivers/acpi
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __ACEVENTS_H__
#define __ACEVENTS_H__

/*
 * Conditions to trigger post enabling GPE polling:
 * It is not sufficient to trigger edge-triggered GPE with specific GPE
 * chips, software need to poll once after enabling.
 */
#ifdef ACPI_USE_GPE_POLLING
#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__)             \
	((__gpe__)->runtime_count == 1 &&                   \
	 (__gpe__)->flags & ACPI_GPE_INITIALIZED &&         \
	 ((__gpe__)->flags & ACPI_GPE_XRUPT_TYPE_MASK) == ACPI_GPE_EDGE_TRIGGERED)
#else
#define ACPI_GPE_IS_POLLING_NEEDED(__gpe__)             FALSE
#endif

/*
 * evevent
 */
acpi_status acpi_ev_initialize_events(void);

acpi_status acpi_ev_install_xrupt_handlers(void);

u32 acpi_ev_fixed_event_detect(void);

/*
 * evmisc
 */
u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node);

u32 acpi_ev_get_gpe_number_index(u32 gpe_number);

acpi_status
acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
			     u32 notify_value);

/*
 * evglock - Global Lock support
 */
acpi_status acpi_ev_init_global_lock_handler(void);

ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
			    acpi_ev_acquire_global_lock(u16 timeout))
ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))

acpi_status acpi_ev_remove_global_lock_handler(void);

/*
 * evgpe - Low-level GPE support
 */
u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);

acpi_status
acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info);

acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);

acpi_status
acpi_ev_mask_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 is_masked);

acpi_status
acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info,
			  u8 clear_on_enable);

acpi_status
acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_info);

struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
						       u32 gpe_number);

struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number,
						     struct acpi_gpe_block_info
						     *gpe_block);

acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info);

u32
acpi_ev_detect_gpe(struct acpi_namespace_node *gpe_device,
		   struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number);

/*
 * evgpeblk - Upper-level GPE block support
 */
acpi_status
acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
			 u64 address,
			 u8 space_id,
			 u32 register_count,
			 u16 gpe_block_base_number,

Annotation

Implementation Notes